/* ============================================
   DR. NURUL ISLAM - PROFESSIONAL PORTFOLIO
   Modern Academic Website CSS
   ============================================ */

/* ============================================
   CSS CUSTOM PROPERTIES
   ============================================ */
:root {
    /* Primary Colors - Professional Blue */
    --color-primary: #0F4C81;
    --color-primary-light: #1565C0;
    --color-primary-dark: #0A3A5F;
    --color-primary-rgb: 15, 76, 129;

    /* Secondary Colors - Academic Teal */
    --color-secondary: #00838F;
    --color-secondary-light: #00ACC1;
    --color-secondary-dark: #006064;

    /* Accent Colors */
    --color-accent: #D84315;
    --color-accent-light: #FF5722;
    --color-gold: #F9A825;

    /* Neutral Colors */
    --color-dark: #1A202C;
    --color-dark-light: #2D3748;
    --color-gray: #4A5568;
    --color-gray-light: #718096;
    --color-gray-lighter: #A0AEC0;
    --color-border: #E2E8F0;
    --color-bg-light: #F7FAFC;
    --color-bg-lighter: #EDF2F7;
    --color-white: #FFFFFF;

    /* Status Colors */
    --color-success: #38A169;
    --color-warning: #D69E2E;
    --color-danger: #E53E3E;
    --color-info: #3182CE;

    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-heading: 'Playfair Display', Georgia, serif;
    --font-mono: 'Courier New', monospace;

    /* Font Sizes */
    --text-xs: 0.75rem;
    /* 12px */
    --text-sm: 0.875rem;
    /* 14px */
    --text-base: 1rem;
    /* 16px */
    --text-lg: 1.125rem;
    /* 18px */
    --text-xl: 1.25rem;
    /* 20px */
    --text-2xl: 1.5rem;
    /* 24px */
    --text-3xl: 1.875rem;
    /* 30px */
    --text-4xl: 2.25rem;
    /* 36px */
    --text-5xl: 3rem;
    /* 48px */
    --text-6xl: 3.75rem;
    /* 60px */

    /* Spacing */
    --space-1: 0.25rem;
    /* 4px */
    --space-2: 0.5rem;
    /* 8px */
    --space-3: 0.75rem;
    /* 12px */
    --space-4: 1rem;
    /* 16px */
    --space-5: 1.25rem;
    /* 20px */
    --space-6: 1.5rem;
    /* 24px */
    --space-8: 2rem;
    /* 32px */
    --space-10: 2.5rem;
    /* 40px */
    --space-12: 3rem;
    /* 48px */
    --space-16: 4rem;
    /* 64px */
    --space-20: 5rem;
    /* 80px */
    --space-24: 6rem;
    /* 96px */

    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius: 0.5rem;
    --radius-md: 0.75rem;
    --radius-lg: 1rem;
    --radius-xl: 1.5rem;
    --radius-2xl: 2rem;
    --radius-full: 9999px;

    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --shadow-xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    --shadow-2xl: 0 35px 60px -15px rgba(0, 0, 0, 0.3);

    /* Transitions */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition: 300ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 500ms cubic-bezier(0.4, 0, 0.2, 1);

    /* Z-index Scale */
    --z-dropdown: 1000;
    --z-sticky: 1020;
    --z-fixed: 1030;
    --z-modal-backdrop: 1040;
    --z-modal: 1050;
    --z-popover: 1060;
    --z-tooltip: 1070;
}

/* ============================================
   RESET & BASE STYLES
   ============================================ */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-primary);
    font-size: var(--text-base);
    line-height: 1.6;
    color: var(--color-dark);
    background: var(--color-white);
    overflow-x: hidden;
}

/* ============================================
   TYPOGRAPHY
   ============================================ */
h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
    color: var(--color-dark);
    margin-bottom: var(--space-4);
}

h1 {
    font-size: clamp(2.5rem, 6vw, 3.75rem);
}

h2 {
    font-size: clamp(2rem, 5vw, 3rem);
}

h3 {
    font-size: clamp(1.5rem, 4vw, 2.25rem);
}

h4 {
    font-size: clamp(1.25rem, 3vw, 1.75rem);
}

h5 {
    font-size: clamp(1.125rem, 2vw, 1.5rem);
}

h6 {
    font-size: var(--text-lg);
}

p {
    margin-bottom: var(--space-4);
    color: var(--color-gray);
}

a {
    color: inherit;
    text-decoration: none;
    transition: var(--transition);
}

a:hover {
    color: var(--color-primary);
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* ============================================
   UTILITY CLASSES
   ============================================ */
.container {
    width: 100%;
    max-width: 1320px;
    margin: 0 auto;
    padding: 0 var(--space-6);
}

.section {
    padding: clamp(4rem, 10vw, 7rem) 0;
    position: relative;
    overflow: hidden;
}

/* ============================================
   CUSTOM CURSOR
   ============================================ */
.cursor-dot,
.cursor-outline {
    pointer-events: none;
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    border-radius: 50%;
    z-index: 10000;
    transition: opacity 0.3s, background 0.3s;
}

.cursor-dot {
    width: 8px;
    height: 8px;
    background: var(--color-primary);
}

.cursor-outline {
    width: 32px;
    height: 32px;
    border: 2px solid var(--color-primary);
    transition: transform 0.15s ease-out;
}

@media (max-width: 1024px) {

    .cursor-dot,
    .cursor-outline {
        display: none;
    }
}

/* ============================================
   LOADING SCREEN
   ============================================ */
.loading-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 99999;
    transition: opacity 0.5s, visibility 0.5s;
}

.loading-screen.hidden {
    opacity: 0;
    visibility: hidden;
}

.loading-content {
    text-align: center;
    color: var(--color-white);
}

.loading-spinner {
    width: 60px;
    height: 60px;
    border: 4px solid rgba(255, 255, 255, 0.2);
    border-top-color: var(--color-white);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto var(--space-6);
}

.loading-content h2 {
    color: var(--color-white);
    font-size: var(--text-3xl);
    margin-bottom: var(--space-2);
}

.loading-content p {
    color: rgba(255, 255, 255, 0.9);
    font-size: var(--text-lg);
    margin-bottom: var(--space-6);
}

.loading-bar {
    width: 300px;
    height: 4px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-full);
    overflow: hidden;
    margin: 0 auto;
}

.loading-progress {
    height: 100%;
    background: var(--color-white);
    width: 0%;
    animation: loadProgress 2s ease-in-out forwards;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

@keyframes loadProgress {
    to {
        width: 100%;
    }
}

/* ============================================
   HEADER & NAVIGATION
   ============================================ */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: var(--z-fixed);
    transition: var(--transition);
}

.navbar {
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.header.scrolled .navbar {
    box-shadow: var(--shadow-lg);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-4) var(--space-6);
    max-width: 1400px;
    margin: 0 auto;
}

/* ============================================
   UPDATED LOGO STYLES - Single Line
   ============================================ */
.logo-text {
    display: flex;
    flex-direction: column;
}

.logo-name {
    font-size: var(--text-lg);
    color: var(--color-dark);
    line-height: 1.2;
    white-space: nowrap;
}

/* Remove logo-title as it's no longer needed */
.logo-title {
    display: none;
}

/* ============================================
   UPDATED HERO TITLE - Single Line White
   ============================================ */
.hero-title {
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: 900;
    line-height: 1.2;
    margin-bottom: var(--space-4);
    color: var(--color-white);
}

.title-line-single {
    display: inline;
    color: var(--color-white);
    white-space: nowrap;
}

/* Remove the old multi-line title styles */
.title-line {
    display: inline;
}

.title-highlight {
    color: var(--color-white);
}

/* ============================================
   CV TEMPLATE STYLES
   ============================================ */
#cv-template {
    position: absolute;
    left: -9999px;
    top: -9999px;
    width: 210mm;
    background: white;
    font-family: 'Times New Roman', Georgia, serif;
    color: #000;
}

.cv-container {
    padding: 20mm;
    background: white;
}

.cv-header {
    text-align: center;
    border-bottom: 2px solid #000;
    padding-bottom: 15px;
    margin-bottom: 20px;
}

.cv-header h1 {
    font-size: 28pt;
    margin: 0 0 8px 0;
    font-weight: bold;
    color: #000;
    font-family: 'Times New Roman', Georgia, serif;
}

.cv-header .cv-subtitle {
    font-size: 12pt;
    margin: 5px 0;
    color: #333;
}

.cv-contact {
    font-size: 10pt;
    margin-top: 10px;
    color: #000;
}

.cv-contact span {
    margin: 0 15px;
}

.cv-section {
    margin-bottom: 20px;
    page-break-inside: avoid;
}

.cv-section-title {
    font-size: 14pt;
    font-weight: bold;
    border-bottom: 1px solid #000;
    padding-bottom: 5px;
    margin-bottom: 12px;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: #000;
    font-family: 'Times New Roman', Georgia, serif;
}

.cv-item {
    margin-bottom: 15px;
    page-break-inside: avoid;
}

.cv-item-header {
    display: flex;
    justify-content: space-between;
    margin-bottom: 5px;
}

.cv-item-title {
    font-weight: bold;
    font-size: 11pt;
    color: #000;
}

.cv-item-date {
    font-size: 10pt;
    font-style: italic;
    color: #333;
}

.cv-item-subtitle {
    font-size: 10pt;
    color: #333;
    margin-bottom: 3px;
}

.cv-item-description {
    font-size: 10pt;
    color: #000;
    line-height: 1.4;
    margin-top: 3px;
}

.cv-publication {
    margin-bottom: 12px;
    font-size: 10pt;
    line-height: 1.5;
    text-align: justify;
    page-break-inside: avoid;
}

.cv-publication-authors {
    font-weight: normal;
    color: #000;
}

.cv-publication-title {
    font-style: italic;
    color: #000;
}

.cv-publication-journal {
    color: #333;
}

.cv-skills-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 8px;
    font-size: 10pt;
}

.cv-skill-item {
    padding: 5px 0;
    color: #000;
}

.cv-skill-item:before {
    content: "• ";
    font-weight: bold;
}

/* Two-column layout for experience */
.cv-two-columns {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
}

/* Print-specific styles */
@media print {
    #cv-template {
        position: static !important;
        left: auto !important;
        top: auto !important;
    }

    .cv-container {
        padding: 0;
    }

    .cv-section {
        page-break-inside: avoid;
    }

    .cv-item {
        page-break-inside: avoid;
    }
}

/* ============================================
   DOWNLOAD BUTTON LOADING STATE
   ============================================ */
.btn-download.loading {
    pointer-events: none;
    opacity: 0.7;
}

.btn-download.loading i {
    animation: spin 1s linear infinite;
}

@keyframes spin {
    from {
        transform: rotate(0deg);
    }

    to {
        transform: rotate(360deg);
    }
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--space-1);
    margin: 0;
}

.nav-link {
    display: block;
    padding: var(--space-2) var(--space-4);
    color: var(--color-gray);
    font-weight: 500;
    font-size: var(--text-sm);
    border-radius: var(--radius);
    position: relative;
    transition: var(--transition);
}

.nav-link::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--color-primary);
    transform: translateX(-50%);
    transition: width var(--transition);
}

.nav-link:hover,
.nav-link.active {
    color: var(--color-primary);
    background: rgba(15, 76, 129, 0.05);
}

.nav-link:hover::before,
.nav-link.active::before {
    width: 60%;
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: var(--space-4);
}

.btn-download {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-5);
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    color: var(--color-white);
    border-radius: var(--radius-full);
    font-weight: 600;
    font-size: var(--text-sm);
    transition: var(--transition);
    box-shadow: var(--shadow);
}

.btn-download:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 6px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--space-2);
}

.nav-toggle span {
    width: 28px;
    height: 3px;
    background: var(--color-dark);
    border-radius: var(--radius-full);
    transition: var(--transition);
}

.nav-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(8px, 8px);
}

.nav-toggle.active span:nth-child(2) {
    opacity: 0;
}

.nav-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(8px, -8px);
}

/* Scroll Progress Bar */
.scroll-progress {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: var(--color-bg-light);
}

.scroll-progress-bar {
    height: 100%;
    background: linear-gradient(90deg, var(--color-primary), var(--color-secondary));
    width: 0%;
    transition: width 0.1s ease;
}

/* ============================================
   BUTTONS
   ============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-4) var(--space-6);
    border: none;
    border-radius: var(--radius-full);
    font-weight: 600;
    font-size: var(--text-base);
    font-family: var(--font-primary);
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    white-space: nowrap;
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    color: var(--color-white);
    box-shadow: var(--shadow);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-secondary {
    background: var(--color-white);
    color: var(--color-primary);
    border: 2px solid var(--color-primary);
}

.btn-secondary:hover {
    background: var(--color-primary);
    color: var(--color-white);
}

.btn-outline {
    background: transparent;
    color: var(--color-white);
    border: 2px solid var(--color-white);
}

.btn-outline:hover {
    background: var(--color-white);
    color: var(--color-primary);
}

/* ============================================
   HERO SECTION
   ============================================ */
.hero-section {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    padding-top: 80px;
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
}

.hero-gradient {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg,
            var(--color-primary) 0%,
            var(--color-secondary) 50%,
            var(--color-primary-dark) 100%);
}

.hero-pattern {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image:
        radial-gradient(circle at 20% 50%, rgba(255, 255, 255, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(255, 255, 255, 0.1) 0%, transparent 50%);
    opacity: 0.5;
}

#particleCanvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.hero-content {
    position: relative;
    z-index: 1;
    width: 100%;
    padding: var(--space-8) 0;
}

.hero-main {
    max-width: 900px;
    margin: 0 auto;
    text-align: center;
    color: var(--color-white);
}

.hero-label {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-5);
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-full);
    font-size: var(--text-sm);
    font-weight: 600;
    margin-bottom: var(--space-6);
}

.hero-title {
    font-size: clamp(3rem, 8vw, 5rem);
    font-weight: 900;
    line-height: 1.1;
    margin-bottom: var(--space-4);
    color: var(--color-white);
}

.title-line {
    display: block;
}

.title-highlight {
    background: linear-gradient(90deg, #FFD700, #FFA500);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-3);
    font-size: var(--text-2xl);
    font-weight: 500;
    margin-bottom: var(--space-3);
    color: rgba(255, 255, 255, 0.95);
}

.subtitle-icon {
    font-size: var(--text-3xl);
}

.hero-institution {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    font-size: var(--text-lg);
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: var(--space-8);
}

.hero-specializations {
    display: flex;
    justify-content: center;
    gap: var(--space-3);
    flex-wrap: wrap;
    margin-bottom: var(--space-10);
}

.specialization-tag {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-5);
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-full);
    font-size: var(--text-sm);
    font-weight: 500;
}

.hero-stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: var(--space-6);
    margin: var(--space-12) 0;
}

.hero-stat {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    padding: var(--space-6);
    border-radius: var(--radius-xl);
    display: flex;
    align-items: center;
    gap: var(--space-4);
    transition: var(--transition);
}

.hero-stat:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: translateY(-5px);
}

.stat-icon {
    font-size: 2.5rem;
    opacity: 0.9;
}

.stat-content {
    text-align: left;
}

.stat-number {
    font-size: var(--text-4xl);
    font-weight: 800;
    line-height: 1;
    margin-bottom: var(--space-1);
}

.stat-number::after {
    content: '+';
}

.stat-label {
    font-size: var(--text-sm);
    opacity: 0.9;
}

.hero-actions {
    display: flex;
    justify-content: center;
    gap: var(--space-4);
    flex-wrap: wrap;
    margin-bottom: var(--space-8);
}

.hero-contact-info {
    display: flex;
    justify-content: center;
    gap: var(--space-8);
    flex-wrap: wrap;
    font-size: var(--text-base);
}

.contact-item {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    color: rgba(255, 255, 255, 0.9);
    transition: var(--transition);
}

.contact-item:hover {
    color: var(--color-white);
    transform: translateY(-2px);
}

.scroll-indicator {
    position: absolute;
    bottom: var(--space-8);
    left: 50%;
    transform: translateX(-50%);
    text-align: center;
    color: var(--color-white);
}

.mouse {
    width: 30px;
    height: 50px;
    border: 2px solid rgba(255, 255, 255, 0.5);
    border-radius: var(--radius-full);
    position: relative;
    margin: 0 auto var(--space-2);
}

.wheel {
    width: 4px;
    height: 10px;
    background: rgba(255, 255, 255, 0.8);
    border-radius: var(--radius-full);
    position: absolute;
    top: 10px;
    left: 50%;
    transform: translateX(-50%);
    animation: scroll 2s infinite;
}

@keyframes scroll {

    0%,
    20% {
        transform: translateX(-50%) translateY(0);
        opacity: 1;
    }

    100% {
        transform: translateX(-50%) translateY(20px);
        opacity: 0;
    }
}

.scroll-text {
    font-size: var(--text-sm);
    opacity: 0.8;
}

/* Continue in next part... */

/* ============================================
   SECTION COMMON STYLES
   ============================================ */
.section-header {
    text-align: center;
    margin-bottom: var(--space-16);
}

.section-label {
    display: inline-block;
    padding: var(--space-2) var(--space-4);
    background: rgba(15, 76, 129, 0.1);
    color: var(--color-primary);
    border-radius: var(--radius-full);
    font-size: var(--text-sm);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: var(--space-4);
}

.section-title {
    font-size: clamp(2rem, 5vw, 3rem);
    color: var(--color-dark);
    margin-bottom: var(--space-4);
}

.section-decoration {
    width: 80px;
    height: 4px;
    background: linear-gradient(90deg, var(--color-primary), var(--color-secondary));
    margin: 0 auto var(--space-6);
    border-radius: var(--radius-full);
}

.section-description {
    max-width: 700px;
    margin: 0 auto;
    color: var(--color-gray);
    font-size: var(--text-lg);
    line-height: 1.8;
}

.section-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
}

.section-background .bg-pattern {
    width: 100%;
    height: 100%;
    background:
        radial-gradient(circle at 10% 20%, rgba(15, 76, 129, 0.05) 0%, transparent 50%),
        radial-gradient(circle at 90% 80%, rgba(0, 131, 143, 0.05) 0%, transparent 50%);
}

/* ============================================
   ABOUT SECTION
   ============================================ */
.about-section {
    background: var(--color-white);
}

.about-layout {
    display: grid;
    grid-template-columns: 400px 1fr;
    gap: var(--space-12);
    align-items: start;
}

/* ============================================
   PROFILE CARD - PROFESSIONAL STYLING
   ============================================ */
.profile-card {
    background: var(--color-white);
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-xl);
    padding: var(--space-8);
    position: sticky;
    top: 100px;
    transition: var(--transition);
}

.profile-card:hover {
    box-shadow:
        0 30px 60px -12px rgba(0, 0, 0, 0.25),
        0 18px 36px -18px rgba(0, 0, 0, 0.3);
}

.profile-image-wrapper {
    position: relative;
    margin-bottom: var(--space-6);
}

/* Professional Image Container with Shadows */
.profile-image-container {
    position: relative;
    padding: 8px;
    background: linear-gradient(145deg, #ffffff, #f0f0f0);
    border-radius: var(--radius-2xl);
    box-shadow:
        0 20px 60px rgba(15, 76, 129, 0.15),
        0 8px 24px rgba(0, 0, 0, 0.1),
        inset 0 1px 0 rgba(255, 255, 255, 0.6);
}

.profile-image-frame {
    position: relative;
    border-radius: var(--radius-xl);
    overflow: hidden;
    aspect-ratio: 3/4;
    box-shadow:
        0 10px 40px rgba(0, 0, 0, 0.2),
        0 4px 12px rgba(0, 0, 0, 0.15),
        inset 0 0 0 1px rgba(255, 255, 255, 0.1);
    border: 3px solid rgba(255, 255, 255, 0.8);
}

/* Professional Photo Styling */
.profile-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    transition: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
    filter: brightness(1) contrast(1.05) saturate(1.1);
}

.profile-image-frame:hover .profile-image {
    transform: scale(1.08);
    filter: brightness(1.05) contrast(1.1) saturate(1.15);
}

/* Elegant Overlay Effect */
.profile-overlay {
    position: absolute;
    top: 8px;
    left: 8px;
    right: 8px;
    bottom: 8px;
    border-radius: var(--radius-xl);
    background: linear-gradient(135deg,
            rgba(15, 76, 129, 0.05) 0%,
            rgba(0, 131, 143, 0.05) 100%);
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.4s ease;
}

.profile-image-container:hover .profile-overlay {
    opacity: 1;
}

/* Placeholder Styling */
.profile-placeholder {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    display: none;
    align-items: center;
    justify-content: center;
    color: var(--color-white);
    font-size: 8rem;
}

/* Professional Badge with Premium Shadow */
.profile-badge {
    position: absolute;
    bottom: -20px;
    right: -20px;
    width: 110px;
    height: 110px;
    background: linear-gradient(135deg, #F9A825 0%, #D84315 100%);
    border-radius: 50%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    box-shadow:
        0 12px 40px rgba(249, 168, 37, 0.4),
        0 6px 20px rgba(216, 67, 21, 0.3),
        0 2px 8px rgba(0, 0, 0, 0.2);
    border: 6px solid var(--color-white);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 2;
}

.profile-badge:hover {
    transform: translateY(-5px) scale(1.05);
    box-shadow:
        0 20px 60px rgba(249, 168, 37, 0.5),
        0 10px 30px rgba(216, 67, 21, 0.4),
        0 4px 12px rgba(0, 0, 0, 0.25);
}

.badge-icon {
    font-size: 2.2rem;
    color: var(--color-white);
    margin-bottom: 2px;
    animation: badgePulse 3s ease-in-out infinite;
}

@keyframes badgePulse {

    0%,
    100% {
        transform: scale(1);
        opacity: 1;
    }

    50% {
        transform: scale(1.1);
        opacity: 0.9;
    }
}

.badge-text {
    text-align: center;
    color: var(--color-white);
}

.badge-number {
    display: block;
    font-size: 1.85rem;
    font-weight: 900;
    line-height: 1;
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

.badge-label {
    display: block;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    text-shadow: 0 1px 4px rgba(0, 0, 0, 0.2);
}

/* Shine Effect on Hover */
.profile-image-container::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 50%;
    height: 100%;
    background: linear-gradient(90deg,
            transparent,
            rgba(255, 255, 255, 0.3),
            transparent);
    transition: left 0.6s ease;
    z-index: 1;
    border-radius: var(--radius-2xl);
}

.profile-image-container:hover::before {
    left: 100%;
}

/* Professional Glow Effect */
.profile-image-container::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle,
            rgba(15, 76, 129, 0.1) 0%,
            transparent 70%);
    transform: translate(-50%, -50%);
    opacity: 0;
    transition: opacity 0.4s ease;
    pointer-events: none;
    border-radius: var(--radius-2xl);
}

.profile-image-container:hover::after {
    opacity: 1;
}

.badge-icon {
    font-size: 2rem;
    color: var(--color-white);
    margin-bottom: var(--space-1);
}

.badge-text {
    text-align: center;
    color: var(--color-white);
}

.badge-number {
    display: block;
    font-size: 1.75rem;
    font-weight: 900;
    line-height: 1;
}

.badge-label {
    display: block;
    font-size: var(--text-xs);
    font-weight: 600;
    text-transform: uppercase;
}

.profile-info h3 {
    font-size: var(--text-2xl);
    color: var(--color-dark);
    margin-bottom: var(--space-2);
    text-align: center;
}

.profile-designation {
    text-align: center;
    color: var(--color-primary);
    font-weight: 600;
    margin-bottom: var(--space-6);
}

.profile-details {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
    margin-bottom: var(--space-6);
}

.detail-item {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-3);
    background: var(--color-bg-lighter);
    border-radius: var(--radius);
    font-size: var(--text-sm);
    color: var(--color-gray);
}

.detail-item i {
    color: var(--color-primary);
    font-size: var(--text-lg);
    width: 20px;
}

.profile-social {
    display: flex;
    justify-content: center;
    gap: var(--space-3);
    padding-top: var(--space-6);
    border-top: 2px solid var(--color-border);
}

.social-link {
    width: 45px;
    height: 45px;
    background: var(--color-bg-lighter);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-gray);
    font-size: var(--text-lg);
    transition: var(--transition);
}

.social-link:hover {
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    color: var(--color-white);
    transform: translateY(-3px);
}

/* About Content */
.about-content {
    background: var(--color-white);
}

.content-block {
    margin-bottom: var(--space-8);
}

.content-title {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    font-size: var(--text-2xl);
    color: var(--color-dark);
    margin-bottom: var(--space-6);
    font-family: var(--font-heading);
}

.content-title i {
    color: var(--color-primary);
}

.lead-paragraph {
    font-size: var(--text-xl);
    font-weight: 500;
    color: var(--color-primary);
    line-height: 1.8;
    margin-bottom: var(--space-6);
}

.content-block p {
    font-size: var(--text-base);
    line-height: 1.8;
    color: var(--color-gray);
    margin-bottom: var(--space-4);
    text-align: justify;
}

.highlights-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-6);
    margin-top: var(--space-8);
}

.highlight-card {
    display: flex;
    gap: var(--space-4);
    padding: var(--space-6);
    background: var(--color-bg-lighter);
    border-radius: var(--radius-lg);
    border-left: 4px solid var(--color-primary);
    transition: var(--transition);
}

.highlight-card:hover {
    background: var(--color-white);
    box-shadow: var(--shadow-lg);
    transform: translateX(5px);
}

.highlight-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-white);
    font-size: 1.5rem;
    flex-shrink: 0;
}

.highlight-content h4 {
    font-size: var(--text-lg);
    color: var(--color-dark);
    margin-bottom: var(--space-2);
    font-family: var(--font-primary);
}

.highlight-content p {
    color: var(--color-gray);
    margin: 0;
    font-size: var(--text-sm);
    text-align: left;
}

/* ============================================
   EXPERTISE SECTION
   ============================================ */
.expertise-section {
    background: var(--color-bg-light);
    position: relative;
}

.expertise-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--space-8);
    margin-bottom: var(--space-16);
}

.expertise-card {
    background: var(--color-white);
    padding: var(--space-8);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow);
    transition: var(--transition);
    border-top: 4px solid var(--color-primary);
}

.expertise-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-xl);
}

.expertise-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-white);
    font-size: 2.5rem;
    margin-bottom: var(--space-6);
}

.expertise-card h3 {
    font-size: var(--text-xl);
    color: var(--color-dark);
    margin-bottom: var(--space-4);
    font-family: var(--font-primary);
}

.expertise-card p {
    color: var(--color-gray);
    margin-bottom: var(--space-6);
    line-height: 1.8;
}

.expertise-skills {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.expertise-skills li {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    color: var(--color-gray);
    font-size: var(--text-sm);
}

.expertise-skills i {
    color: var(--color-success);
    font-size: var(--text-xs);
}

/* Research Interests */
.research-interests {
    background: var(--color-white);
    padding: var(--space-10);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
}

.interests-title {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-3);
    font-size: var(--text-2xl);
    color: var(--color-dark);
    margin-bottom: var(--space-8);
    font-family: var(--font-heading);
}

.interests-title i {
    color: var(--color-gold);
}

.interests-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-3);
    justify-content: center;
}

.interest-tag {
    padding: var(--space-3) var(--space-5);
    background: var(--color-bg-lighter);
    color: var(--color-dark);
    border-radius: var(--radius-full);
    font-size: var(--text-sm);
    font-weight: 500;
    border: 2px solid transparent;
    transition: var(--transition);
}

.interest-tag:hover {
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    color: var(--color-white);
    border-color: transparent;
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

/* ============================================
   EDUCATION SECTION
   ============================================ */
.education-section {
    background: var(--color-white);
}

.education-timeline {
    max-width: 900px;
    margin: 0 auto;
    position: relative;
    padding: var(--space-8) 0;
}

.education-timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 3px;
    background: linear-gradient(180deg, var(--color-primary), var(--color-secondary));
    transform: translateX(-50%);
}

.timeline-item {
    position: relative;
    margin-bottom: var(--space-12);
    display: flex;
    justify-content: flex-end;
    padding-right: calc(50% + 50px);
}

.timeline-item:nth-child(even) {
    justify-content: flex-start;
    padding-right: 0;
    padding-left: calc(50% + 50px);
}

.timeline-marker {
    position: absolute;
    left: 50%;
    top: 30px;
    transform: translateX(-50%);
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    border: 5px solid var(--color-white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-white);
    font-size: 1.5rem;
    box-shadow: var(--shadow-lg);
    z-index: 1;
}

.timeline-content {
    background: var(--color-white);
    padding: var(--space-8);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    max-width: 500px;
    transition: var(--transition);
    border: 2px solid var(--color-border);
}

.timeline-content:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
    border-color: var(--color-primary);
}

.timeline-year {
    display: inline-block;
    padding: var(--space-2) var(--space-4);
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    color: var(--color-white);
    border-radius: var(--radius-full);
    font-size: var(--text-sm);
    font-weight: 700;
    margin-bottom: var(--space-4);
}

.timeline-degree {
    font-size: var(--text-xl);
    font-weight: 700;
    color: var(--color-dark);
    margin-bottom: var(--space-2);
    font-family: var(--font-heading);
}

.timeline-field {
    color: var(--color-primary);
    font-weight: 600;
    margin-bottom: var(--space-4);
}

.timeline-institution {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    color: var(--color-gray);
    margin-bottom: var(--space-4);
    font-weight: 500;
}

.timeline-institution i {
    color: var(--color-secondary);
}

.timeline-thesis {
    padding: var(--space-4);
    background: var(--color-bg-lighter);
    border-radius: var(--radius);
    font-size: var(--text-sm);
    color: var(--color-gray);
    line-height: 1.6;
    margin-bottom: var(--space-4);
}

.timeline-thesis strong {
    color: var(--color-primary);
}

.timeline-grade {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    color: var(--color-gold);
    font-weight: 600;
}

.timeline-highlights {
    display: flex;
    gap: var(--space-2);
    flex-wrap: wrap;
}

.highlight-badge {
    display: flex;
    align-items: center;
    gap: var(--space-1);
    padding: var(--space-1) var(--space-3);
    background: rgba(249, 168, 37, 0.1);
    color: var(--color-gold);
    border-radius: var(--radius-full);
    font-size: var(--text-xs);
    font-weight: 600;
}

/* ============================================
   EXPERIENCE SECTION
   ============================================ */
.experience-section {
    background: var(--color-bg-light);
    position: relative;
}

.experience-timeline {
    max-width: 900px;
    margin: 0 auto var(--space-16);
}

.experience-item {
    position: relative;
    padding-left: var(--space-12);
    margin-bottom: var(--space-10);
}

.experience-item::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: -40px;
    width: 3px;
    background: linear-gradient(180deg, var(--color-secondary), var(--color-primary));
}

.experience-item:last-child::before {
    display: none;
}

.experience-item::after {
    content: '';
    position: absolute;
    left: -8px;
    top: 10px;
    width: 19px;
    height: 19px;
    background: var(--color-secondary);
    border: 4px solid var(--color-white);
    border-radius: 50%;
    box-shadow: var(--shadow);
}

.exp-card {
    background: var(--color-white);
    padding: var(--space-8);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow);
    border-left: 4px solid var(--color-secondary);
    transition: var(--transition);
}

.exp-card:hover {
    transform: translateX(10px);
    box-shadow: var(--shadow-xl);
}

.exp-card.current {
    border-left-color: var(--color-gold);
    background: linear-gradient(135deg, rgba(249, 168, 37, 0.05), var(--color-white));
}

.exp-header {
    display: flex;
    justify-content: space-between;
    align-items: start;
    gap: var(--space-4);
    margin-bottom: var(--space-4);
    flex-wrap: wrap;
}

.exp-header h3 {
    font-size: var(--text-xl);
    color: var(--color-dark);
    margin: 0;
    font-family: var(--font-primary);
}

.exp-period {
    padding: var(--space-2) var(--space-4);
    background: var(--color-bg-lighter);
    color: var(--color-dark);
    border-radius: var(--radius-full);
    font-size: var(--text-sm);
    font-weight: 600;
    white-space: nowrap;
}

.exp-org {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    color: var(--color-gray);
    font-weight: 500;
    margin-bottom: var(--space-2);
}

.exp-org i {
    color: var(--color-secondary);
}

/* Honorary Section */
.honorary-section {
    margin-top: var(--space-16);
}

.subsection-title {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-3);
    font-size: var(--text-2xl);
    color: var(--color-dark);
    margin-bottom: var(--space-8);
    font-family: var(--font-heading);
}

.subsection-title i {
    color: var(--color-gold);
}

.honorary-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-6);
}

.honorary-card {
    background: var(--color-white);
    padding: var(--space-6);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    text-align: center;
    transition: var(--transition);
    border-top: 3px solid var(--color-gold);
}

.honorary-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.honorary-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, var(--color-gold), var(--color-accent));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--space-4);
    color: var(--color-white);
    font-size: 2rem;
}

.honorary-card h4 {
    font-size: var(--text-lg);
    color: var(--color-dark);
    margin-bottom: var(--space-2);
}

.honorary-card p {
    color: var(--color-gray);
    font-size: var(--text-sm);
    margin: 0;
}

/* Consulting Section */
.consulting-section {
    margin-top: var(--space-16);
}

.consulting-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--space-6);
}

.consulting-card {
    background: var(--color-white);
    padding: var(--space-6);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.consulting-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.consulting-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-white);
    font-size: 1.5rem;
    margin-bottom: var(--space-4);
}

.consulting-card h4 {
    font-size: var(--text-lg);
    color: var(--color-dark);
    margin-bottom: var(--space-2);
}

.consulting-role {
    color: var(--color-primary);
    font-weight: 600;
    margin-bottom: var(--space-2);
}

.consulting-period {
    color: var(--color-gray-light);
    font-size: var(--text-sm);
    margin-bottom: var(--space-3);
}

.consulting-desc {
    color: var(--color-gray);
    font-size: var(--text-sm);
    line-height: 1.6;
    margin: 0;
}

/* Continue in next part... */

/* ============================================
   RESEARCH SECTION
   ============================================ */
.research-section {
    background: var(--color-white);
}

.research-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--space-6);
    margin-bottom: var(--space-16);
}

.research-stat-card {
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    padding: var(--space-8);
    border-radius: var(--radius-xl);
    text-align: center;
    color: var(--color-white);
    box-shadow: var(--shadow-lg);
    transition: var(--transition);
}

.research-stat-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.stat-icon-wrapper {
    font-size: 3rem;
    margin-bottom: var(--space-4);
    opacity: 0.9;
}

.research-stat-card .stat-number {
    font-size: var(--text-5xl);
    font-weight: 900;
    line-height: 1;
    margin-bottom: var(--space-2);
}

.research-stat-card .stat-label {
    font-size: var(--text-base);
    opacity: 0.95;
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(380px, 1fr));
    gap: var(--space-8);
}

.project-card {
    background: var(--color-white);
    padding: var(--space-8);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow);
    border-top: 5px solid var(--color-primary);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.project-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 5px;
    background: linear-gradient(90deg, var(--color-primary), var(--color-secondary));
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--transition-slow);
}

.project-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-xl);
}

.project-card:hover::before {
    transform: scaleX(1);
}

.project-year {
    display: inline-block;
    padding: var(--space-2) var(--space-4);
    background: linear-gradient(135deg, var(--color-secondary), var(--color-primary));
    color: var(--color-white);
    border-radius: var(--radius-full);
    font-size: var(--text-sm);
    font-weight: 700;
    margin-bottom: var(--space-4);
}

.project-card h3 {
    font-size: var(--text-xl);
    color: var(--color-dark);
    line-height: 1.5;
    margin-bottom: var(--space-4);
    font-family: var(--font-primary);
    min-height: 3.5em;
}

.project-funder {
    display: flex;
    align-items: start;
    gap: var(--space-2);
    color: var(--color-gray);
    font-size: var(--text-sm);
    line-height: 1.6;
    margin-bottom: var(--space-3);
}

.project-funder i {
    color: var(--color-gold);
    margin-top: 3px;
    flex-shrink: 0;
}

.project-status {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-4);
    background: rgba(56, 161, 105, 0.1);
    color: var(--color-success);
    border-radius: var(--radius-full);
    font-size: var(--text-sm);
    font-weight: 600;
}

/* ============================================
   PUBLICATIONS SECTION
   ============================================ */
.publications-section {
    background: var(--color-bg-light);
    position: relative;
}

.publications-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: var(--space-6);
    margin-bottom: var(--space-12);
}

.pub-stat-card {
    background: var(--color-white);
    padding: var(--space-8);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow);
    text-align: center;
    transition: var(--transition);
    border: 2px solid transparent;
}

.pub-stat-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
    border-color: var(--color-primary);
}

.pub-stat-icon {
    font-size: 3.5rem;
    color: var(--color-primary);
    margin-bottom: var(--space-4);
}

.pub-stat-number {
    font-size: var(--text-5xl);
    font-weight: 900;
    color: var(--color-dark);
    line-height: 1;
    margin-bottom: var(--space-2);
}

.pub-stat-label {
    color: var(--color-gray);
    font-size: var(--text-sm);
    font-weight: 600;
}

.publications-controls {
    margin-bottom: var(--space-12);
}

.search-wrapper {
    margin-bottom: var(--space-6);
}

.search-box {
    position: relative;
    max-width: 700px;
    margin: 0 auto;
}

.search-box i {
    position: absolute;
    left: var(--space-5);
    top: 50%;
    transform: translateY(-50%);
    color: var(--color-gray-light);
    font-size: var(--text-lg);
}

.search-box input {
    width: 100%;
    padding: var(--space-4) var(--space-16) var(--space-4) var(--space-12);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-full);
    font-size: var(--text-base);
    font-family: var(--font-primary);
    transition: var(--transition);
    background: var(--color-white);
}

.search-box input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 4px rgba(15, 76, 129, 0.1);
}

.search-clear {
    position: absolute;
    right: var(--space-4);
    top: 50%;
    transform: translateY(-50%);
    width: 32px;
    height: 32px;
    background: var(--color-gray-lighter);
    border: none;
    border-radius: 50%;
    color: var(--color-white);
    cursor: pointer;
    opacity: 0;
    transition: var(--transition);
}

.search-box input:not(:placeholder-shown)~.search-clear {
    opacity: 1;
}

.search-clear:hover {
    background: var(--color-danger);
}

.filter-controls {
    display: flex;
    justify-content: center;
}

.filter-group {
    display: flex;
    gap: var(--space-3);
    flex-wrap: wrap;
    justify-content: center;
}

.filter-btn {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-5);
    background: var(--color-white);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-full);
    color: var(--color-gray);
    font-weight: 600;
    font-size: var(--text-sm);
    cursor: pointer;
    transition: var(--transition);
    font-family: var(--font-primary);
}

.filter-btn:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
    transform: translateY(-2px);
}

.filter-btn.active {
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    color: var(--color-white);
    border-color: transparent;
    box-shadow: var(--shadow);
}

.publications-container {
    display: grid;
    gap: var(--space-6);
}

.publication-item {
    background: var(--color-white);
    padding: var(--space-8);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow);
    border-left: 5px solid var(--color-primary);
    transition: var(--transition);
}

.publication-item:hover {
    transform: translateX(10px);
    box-shadow: var(--shadow-xl);
}

.pub-authors {
    font-weight: 600;
    color: var(--color-dark);
    margin-bottom: var(--space-3);
    font-size: var(--text-sm);
}

.publication-item h3 {
    font-size: var(--text-lg);
    color: var(--color-primary-dark);
    line-height: 1.6;
    margin-bottom: var(--space-3);
    font-family: var(--font-primary);
    font-weight: 600;
}

.pub-journal {
    font-style: italic;
    color: var(--color-gray);
    margin-bottom: var(--space-4);
    font-size: var(--text-sm);
    line-height: 1.5;
}

.pub-meta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-4);
    color: var(--color-gray-light);
    font-size: var(--text-sm);
}

.pub-meta-item {
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.pub-meta-item i {
    color: var(--color-secondary);
}

.load-more-wrapper {
    text-align: center;
    margin-top: var(--space-12);
}

.btn-load-more {
    background: var(--color-white);
    color: var(--color-primary);
    border: 2px solid var(--color-primary);
}

.btn-load-more:hover {
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    color: var(--color-white);
    border-color: transparent;
}

/* ============================================
   TEACHING SECTION
   ============================================ */
.teaching-section {
    background: var(--color-white);
}

.teaching-intro {
    max-width: 800px;
    margin: 0 auto var(--space-12);
    text-align: center;
}

.teaching-intro p {
    font-size: var(--text-lg);
    line-height: 1.8;
    color: var(--color-gray);
}

.teaching-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: var(--space-8);
}

.course-card {
    background: var(--color-white);
    padding: var(--space-8);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow);
    text-align: center;
    transition: var(--transition);
    border-top: 5px solid var(--color-secondary);
}

.course-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-xl);
}

.course-icon {
    width: 90px;
    height: 90px;
    background: linear-gradient(135deg, var(--color-secondary), var(--color-primary));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--space-6);
    color: var(--color-white);
    font-size: 2.5rem;
}

.course-card h3 {
    font-size: var(--text-xl);
    color: var(--color-dark);
    margin-bottom: var(--space-3);
    font-family: var(--font-primary);
    min-height: 2.5em;
}

.course-level {
    color: var(--color-gray);
    font-size: var(--text-base);
    font-weight: 500;
    margin-bottom: var(--space-2);
}

.course-code {
    display: inline-block;
    padding: var(--space-2) var(--space-4);
    background: var(--color-bg-lighter);
    color: var(--color-primary);
    border-radius: var(--radius-full);
    font-size: var(--text-sm);
    font-weight: 600;
}

/* ============================================
   TALKS SECTION
   ============================================ */
.talks-section {
    background: var(--color-bg-light);
    position: relative;
}

.talks-tabs {
    display: flex;
    justify-content: center;
    gap: var(--space-3);
    margin-bottom: var(--space-12);
    flex-wrap: wrap;
}

.tab-btn {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-4) var(--space-6);
    background: var(--color-white);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-full);
    color: var(--color-gray);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    font-family: var(--font-primary);
}

.tab-btn:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
    transform: translateY(-2px);
}

.tab-btn.active {
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    color: var(--color-white);
    border-color: transparent;
    box-shadow: var(--shadow);
}

.talks-container {
    display: grid;
    gap: var(--space-6);
}

.talk-item {
    background: var(--color-white);
    padding: var(--space-8);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow);
    border-left: 5px solid var(--color-secondary);
    transition: var(--transition);
}

.talk-item:hover {
    transform: translateX(10px);
    box-shadow: var(--shadow-xl);
}

.talk-type {
    display: inline-block;
    padding: var(--space-2) var(--space-4);
    background: linear-gradient(135deg, var(--color-secondary), var(--color-primary));
    color: var(--color-white);
    border-radius: var(--radius-full);
    font-size: var(--text-xs);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: var(--space-4);
}

.talk-item h3 {
    font-size: var(--text-xl);
    color: var(--color-dark);
    line-height: 1.5;
    margin-bottom: var(--space-4);
    font-family: var(--font-primary);
}

.talk-details {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-5);
    color: var(--color-gray);
    font-size: var(--text-sm);
}

.talk-detail-item {
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.talk-detail-item i {
    color: var(--color-secondary);
}

/* ============================================
   AWARDS SECTION
   ============================================ */
.awards-section {
    background: var(--color-white);
}

.awards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: var(--space-8);
}

.award-card {
    background: var(--color-white);
    padding: var(--space-8);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow);
    text-align: center;
    transition: var(--transition);
    border-top: 5px solid var(--color-gold);
}

.award-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-xl);
}

.award-icon {
    width: 100px;
    height: 100px;
    background: linear-gradient(135deg, var(--color-gold), var(--color-accent));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--space-6);
    color: var(--color-white);
    font-size: 3rem;
}

.award-card h3 {
    font-size: var(--text-xl);
    color: var(--color-dark);
    margin-bottom: var(--space-3);
    font-family: var(--font-primary);
    min-height: 2.5em;
}

.award-org {
    color: var(--color-gray);
    margin-bottom: var(--space-4);
    line-height: 1.6;
}

.award-year {
    display: inline-block;
    padding: var(--space-2) var(--space-4);
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    color: var(--color-white);
    border-radius: var(--radius-full);
    font-size: var(--text-sm);
    font-weight: 700;
    margin-bottom: var(--space-3);
}

.award-description {
    color: var(--color-gray);
    font-size: var(--text-sm);
    line-height: 1.6;
}

/* ============================================
   SUPERVISION SECTION
   ============================================ */
.supervision-section {
    background: var(--color-bg-light);
    position: relative;
}

.supervision-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: var(--space-6);
    margin-bottom: var(--space-12);
}

.supervision-stat-card {
    background: var(--color-white);
    padding: var(--space-8);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow);
    text-align: center;
    transition: var(--transition);
    border: 2px solid transparent;
}

.supervision-stat-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
    border-color: var(--color-primary);
}

.supervision-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--space-4);
    color: var(--color-white);
    font-size: 2.5rem;
}

.supervision-number {
    font-size: var(--text-5xl);
    font-weight: 900;
    color: var(--color-dark);
    line-height: 1;
    margin-bottom: var(--space-2);
}

.supervision-label {
    color: var(--color-gray);
    font-size: var(--text-sm);
    font-weight: 600;
}

.supervision-tabs {
    display: flex;
    justify-content: center;
    gap: var(--space-3);
    margin-bottom: var(--space-12);
    flex-wrap: wrap;
}

.supervision-tab-btn {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-4) var(--space-6);
    background: var(--color-white);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-full);
    color: var(--color-gray);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    font-family: var(--font-primary);
}

.supervision-tab-btn:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
}

.supervision-tab-btn.active {
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    color: var(--color-white);
    border-color: transparent;
    box-shadow: var(--shadow);
}

.students-container {
    display: grid;
    gap: var(--space-6);
}

.student-item {
    background: var(--color-white);
    padding: var(--space-8);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow);
    border-left: 5px solid var(--color-accent);
    transition: var(--transition);
}

.student-item:hover {
    transform: translateX(10px);
    box-shadow: var(--shadow-xl);
}

.student-item h4 {
    font-size: var(--text-xl);
    color: var(--color-dark);
    margin-bottom: var(--space-3);
    font-family: var(--font-primary);
}

.student-level {
    display: inline-block;
    padding: var(--space-1) var(--space-3);
    background: linear-gradient(135deg, var(--color-accent), var(--color-gold));
    color: var(--color-white);
    border-radius: var(--radius-full);
    font-size: var(--text-xs);
    font-weight: 700;
    margin-left: var(--space-2);
}

.student-thesis {
    color: var(--color-gray);
    line-height: 1.7;
    margin: var(--space-3) 0;
}

.student-thesis strong {
    color: var(--color-primary);
}

.student-status {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-4);
    background: rgba(56, 161, 105, 0.1);
    color: var(--color-success);
    border-radius: var(--radius-full);
    font-size: var(--text-sm);
    font-weight: 600;
}

/* ============================================
   CONTACT SECTION
   ============================================ */
.contact-section {
    background: var(--color-white);
}

.contact-layout {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: var(--space-12);
}

.contact-info-section {
    display: flex;
    flex-direction: column;
    gap: var(--space-6);
}

.contact-card {
    background: var(--color-white);
    padding: var(--space-8);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow);
    text-align: center;
    transition: var(--transition);
}

.contact-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.contact-card-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--space-4);
    color: var(--color-white);
    font-size: 2rem;
}

.contact-card h3 {
    font-size: var(--text-xl);
    color: var(--color-dark);
    margin-bottom: var(--space-4);
}

.contact-card p {
    color: var(--color-gray);
    line-height: 1.8;
    margin: 0;
}

.contact-card a {
    color: var(--color-primary);
    font-weight: 500;
    transition: var(--transition);
}

.contact-card a:hover {
    color: var(--color-secondary);
    text-decoration: underline;
}

.contact-note {
    margin-top: var(--space-3);
    font-size: var(--text-sm);
    color: var(--color-gray-light);
}

.contact-social {
    display: flex;
    justify-content: center;
    gap: var(--space-3);
    margin-top: var(--space-4);
}

.social-icon {
    width: 50px;
    height: 50px;
    background: var(--color-bg-lighter);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-primary);
    font-size: var(--text-xl);
    transition: var(--transition);
}

.social-icon:hover {
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    color: var(--color-white);
    transform: translateY(-3px);
}

.contact-map {
    margin-top: var(--space-4);
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow);
}

.contact-form-section {
    background: var(--color-white);
}

.form-wrapper {
    background: var(--color-white);
    padding: var(--space-10);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
}

.form-wrapper h3 {
    font-size: var(--text-2xl);
    color: var(--color-dark);
    margin-bottom: var(--space-3);
}

.form-wrapper>p {
    color: var(--color-gray);
    margin-bottom: var(--space-8);
}

.contact-form .form-group {
    margin-bottom: var(--space-6);
}

.contact-form label {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-weight: 600;
    color: var(--color-dark);
    margin-bottom: var(--space-2);
    font-size: var(--text-sm);
}

.contact-form label i {
    color: var(--color-primary);
}

.contact-form input,
.contact-form textarea {
    width: 100%;
    padding: var(--space-4);
    border: 2px solid var(--color-border);
    border-radius: var(--radius);
    font-size: var(--text-base);
    font-family: var(--font-primary);
    transition: var(--transition);
    background: var(--color-white);
}

.contact-form input:focus,
.contact-form textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 4px rgba(15, 76, 129, 0.1);
}

.contact-form textarea {
    resize: vertical;
    min-height: 150px;
}

.btn-submit {
    width: 100%;
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
    background: linear-gradient(135deg, var(--color-dark) 0%, var(--color-dark-light) 100%);
    color: var(--color-white);
}

.footer-main {
    padding: var(--space-16) 0 var(--space-8);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: var(--space-12);
}

.footer-col h4 {
    color: var(--color-white);
    margin-bottom: var(--space-6);
    font-size: var(--text-lg);
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    font-size: var(--text-xl);
    font-weight: 700;
    margin-bottom: var(--space-4);
}

.footer-logo i {
    font-size: var(--text-3xl);
    color: var(--color-gold);
}

.footer-about {
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.8;
    margin-bottom: var(--space-6);
}

.footer-social {
    display: flex;
    gap: var(--space-3);
}

.footer-social a {
    width: 45px;
    height: 45px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-white);
    font-size: var(--text-lg);
    transition: var(--transition);
}

.footer-social a:hover {
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    transform: translateY(-3px);
}

.footer-links {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.footer-links li {
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.footer-links a {
    color: rgba(255, 255, 255, 0.8);
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.footer-links a:hover {
    color: var(--color-white);
    transform: translateX(5px);
}

.footer-links i {
    color: var(--color-secondary);
    font-size: var(--text-xs);
}

.footer-contact {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
}

.footer-contact li {
    display: flex;
    align-items: start;
    gap: var(--space-3);
    color: rgba(255, 255, 255, 0.8);
}

.footer-contact i {
    color: var(--color-secondary);
    margin-top: 3px;
    flex-shrink: 0;
}

.footer-bottom {
    padding: var(--space-6) 0;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-bottom-content {
    text-align: center;
}

.footer-bottom-content p {
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: var(--space-2);
    font-size: var(--text-sm);
}

/* ============================================
   BACK TO TOP BUTTON
   ============================================ */
.back-to-top {
    position: fixed;
    bottom: var(--space-8);
    right: var(--space-8);
    width: 55px;
    height: 55px;
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    color: var(--color-white);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--text-xl);
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: var(--transition);
    z-index: var(--z-fixed);
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

/* ============================================
   TOAST NOTIFICATION
   ============================================ */
.toast {
    position: fixed;
    bottom: var(--space-8);
    right: var(--space-8);
    background: var(--color-white);
    padding: var(--space-5);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    display: flex;
    align-items: start;
    gap: var(--space-4);
    max-width: 400px;
    z-index: var(--z-modal);
    opacity: 0;
    transform: translateX(400px);
    transition: var(--transition);
}

.toast.show {
    opacity: 1;
    transform: translateX(0);
}

.toast-icon {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--color-success), #22c55e);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-white);
    font-size: var(--text-xl);
    flex-shrink: 0;
}

.toast-content {
    flex: 1;
}

.toast-title {
    font-size: var(--text-base);
    font-weight: 700;
    color: var(--color-dark);
    margin-bottom: var(--space-1);
}

.toast-message {
    color: var(--color-gray);
    font-size: var(--text-sm);
    line-height: 1.5;
    margin: 0;
}

.toast-close {
    background: none;
    border: none;
    color: var(--color-gray-light);
    cursor: pointer;
    font-size: var(--text-lg);
    padding: 0;
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    transition: var(--transition);
}

.toast-close:hover {
    background: var(--color-bg-lighter);
    color: var(--color-dark);
}

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */

/* Tablets and below (1024px) */
@media (max-width: 1024px) {
    :root {
        font-size: 15px;
    }

    .about-layout {
        grid-template-columns: 1fr;
        gap: var(--space-8);
    }

    .profile-card {
        position: static;
    }

    .contact-layout {
        grid-template-columns: 1fr;
    }

    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .highlights-grid {
        grid-template-columns: 1fr;
    }
}

/* Mobile devices (768px) */
@media (max-width: 768px) {
    :root {
        font-size: 14px;
    }

    .nav-menu {
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        background: var(--color-white);
        flex-direction: column;
        padding: var(--space-6);
        box-shadow: var(--shadow-xl);
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.3s ease;
    }

    .nav-menu.active {
        max-height: 600px;
    }

    .nav-link {
        padding: var(--space-3) var(--space-4);
    }

    .nav-toggle {
        display: flex;
    }

    .nav-actions {
        display: none;
    }

    .hero-stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .hero-actions {
        flex-direction: column;
        width: 100%;
    }

    .hero-actions .btn {
        width: 100%;
    }

    .expertise-grid,
    .projects-grid,
    .teaching-grid,
    .awards-grid {
        grid-template-columns: 1fr;
    }

    .education-timeline::before {
        left: 0;
    }

    .timeline-item,
    .timeline-item:nth-child(even) {
        padding-left: var(--space-10);
        padding-right: 0;
    }

    .timeline-marker {
        left: 0;
        transform: translateX(0);
    }

    .footer-grid {
        grid-template-columns: 1fr;
    }

    .filter-group {
        flex-direction: column;
        width: 100%;
    }

    .filter-btn,
    .tab-btn,
    .supervision-tab-btn {
        width: 100%;
        justify-content: center;
    }
}

/* Small mobile (480px) */
@media (max-width: 480px) {
    .container {
        padding: 0 var(--space-4);
    }

    .section {
        padding: var(--space-12) 0;
    }

    .hero-stats-grid,
    .publications-stats,
    .supervision-stats {
        grid-template-columns: 1fr;
    }

    .back-to-top {
        width: 50px;
        height: 50px;
        bottom: var(--space-6);
        right: var(--space-6);
    }

    .toast {
        left: var(--space-4);
        right: var(--space-4);
        max-width: none;
    }
}

/* Print styles */
@media print {

    .header,
    .scroll-indicator,
    .back-to-top,
    .toast,
    .hero-background,
    .filter-btn,
    .tab-btn,
    .nav-toggle {
        display: none !important;
    }

    body {
        color: #000;
    }

    .section {
        page-break-inside: avoid;
    }
}

/* ============================================
   ANIMATIONS
   ============================================ */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-50px);
    }

    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(50px);
    }

    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes zoomIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }

    to {
        opacity: 1;
        transform: scale(1);
    }
}

/* ============================================
   ACCESSIBILITY
   ============================================ */
@media (prefers-reduced-motion: reduce) {

    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

/* Focus styles */
a:focus,
button:focus,
input:focus,
textarea:focus {
    outline: 3px solid var(--color-primary);
    outline-offset: 2px;
}

/* Screen reader only */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}