/* ===================================
   MODERN PORTFOLIO - WORLD-CLASS DESIGN
   =================================== */

/* ===================================
   1. CSS VARIABLES & ROOT STYLES
   =================================== */
:root {
    /* Colors */
    --primary: #3B82F6;
    --primary-dark: #2563EB;
    --primary-light: #60A5FA;
    --secondary: #10B981;
    --accent: #8B5CF6;
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-secondary: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --gradient-accent: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    --gradient-mesh: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #f093fb 100%);
    
    /* Light Theme */
    --bg-primary: #FFFFFF;
    --bg-secondary: #F9FAFB;
    --bg-tertiary: #F3F4F6;
    --text-primary: #111827;
    --text-secondary: #6B7280;
    --text-tertiary: #9CA3AF;
    --border-color: #E5E7EB;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    
    /* Typography */
    --font-primary: 'DM Sans', 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-secondary: 'DM Sans', 'Inter', sans-serif;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    
    /* Transitions */
    --transition-fast: 150ms ease-in-out;
    --transition-base: 250ms ease-in-out;
    --transition-slow: 350ms ease-in-out;
    
    /* Z-index */
    --z-dropdown: 1000;
    --z-sticky: 1020;
    --z-fixed: 1030;
    --z-modal: 1050;
    --z-tooltip: 1070;
}

/* Dark Theme */
[data-theme="dark"] {
    --bg-primary: #0F172A;
    --bg-secondary: #1E293B;
    --bg-tertiary: #334155;
    --text-primary: #F1F5F9;
    --text-secondary: #CBD5E1;
    --text-tertiary: #94A3B8;
    --border-color: #334155;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.5);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.5);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.5);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.5);
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

body {
    font-family: var(--font-primary);
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-primary);
    overflow-x: hidden;
    transition: background-color var(--transition-base), color var(--transition-base);
}

::selection {
    background-color: var(--primary);
    color: white;
}

/* ===================================
   3. ANIMATED BACKGROUND
   =================================== */
.bg-animation {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    overflow: hidden;
}

.gradient-bg {
    position: absolute;
    width: 200%;
    height: 200%;
    top: -50%;
    left: -50%;
    background: radial-gradient(circle at 20% 50%, rgba(103, 126, 234, 0.15) 0%, transparent 50%),
                radial-gradient(circle at 80% 80%, rgba(118, 75, 162, 0.15) 0%, transparent 50%),
                radial-gradient(circle at 40% 10%, rgba(240, 147, 251, 0.15) 0%, transparent 50%);
    animation: gradientShift 20s ease-in-out infinite;
}

[data-theme="dark"] .gradient-bg {
    background: radial-gradient(circle at 20% 50%, rgba(103, 126, 234, 0.08) 0%, transparent 50%),
                radial-gradient(circle at 80% 80%, rgba(118, 75, 162, 0.08) 0%, transparent 50%),
                radial-gradient(circle at 40% 10%, rgba(240, 147, 251, 0.08) 0%, transparent 50%);
}

@keyframes gradientShift {
    0%, 100% { transform: translate(0, 0) rotate(0deg); }
    33% { transform: translate(5%, -10%) rotate(120deg); }
    66% { transform: translate(-5%, 5%) rotate(240deg); }
}

.grid-overlay {
    position: absolute;
    width: 100%;
    height: 100%;
    background-image: 
        linear-gradient(var(--border-color) 1px, transparent 1px),
        linear-gradient(90deg, var(--border-color) 1px, transparent 1px);
    background-size: 50px 50px;
    opacity: 0.3;
}

/* ===================================
   4. NAVIGATION
   =================================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 80px;
    background-color: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    z-index: var(--z-fixed);
    transition: all var(--transition-base);
}

[data-theme="dark"] .navbar {
    background-color: rgba(15, 23, 42, 0.8);
}

.navbar.scrolled {
    height: 70px;
    box-shadow: var(--shadow-lg);
}

.nav-container {
    max-width: 1400px;
    height: 100%;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    text-decoration: none;
    color: var(--text-primary);
    transition: transform var(--transition-base);
}

.logo:hover {
    transform: scale(1.05);
}

.logo-dot {
    color: var(--primary);
    font-size: 2rem;
}

.nav-menu {
    display: flex;
    gap: 1.15rem;
    list-style: none;
}

.nav-link {
    position: relative;
    text-decoration: none;
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 0.95rem;
    transition: color var(--transition-base);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: width var(--transition-base);
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.theme-toggle {
    width: 40px;
    height: 40px;
    border: none;
    border-radius: var(--radius-lg);
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    cursor: pointer;
    transition: all var(--transition-base);
}

.theme-toggle:hover {
    background-color: var(--primary);
    color: white;
    transform: rotate(180deg);
}

.mobile-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    width: 30px;
    height: 30px;
    background: none;
    border: none;
    cursor: pointer;
}

.mobile-toggle span {
    width: 100%;
    height: 3px;
    background-color: var(--text-primary);
    border-radius: 2px;
    transition: all var(--transition-base);
}

/* ===================================
   5. HERO SECTION
   =================================== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 100px 2rem 2rem;
    position: relative;
}

.hero-container {
    max-width: 1400px;
    width: 100%;
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 4rem;
    align-items: center;
}

.hero-content {
    animation: fadeInUp 0.8s ease-out;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 2rem;
    font-size: 0.875rem;
    margin-bottom: 1.5rem;
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.7; }
}

.badge-dot {
    width: 8px;
    height: 8px;
    background-color: var(--secondary);
    border-radius: 50%;
    animation: blink 1.5s ease-in-out infinite;
}

@keyframes blink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.3; }
}

.hero-title {
    font-size: clamp(2rem, 5vw, 4rem);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.greeting {
    font-size: clamp(1.2rem, 3vw, 1.5rem);
    font-weight: 500;
    color: var(--text-secondary);
}

.name {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.title-wrapper {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: clamp(1.5rem, 4vw, 2.5rem);
    color: var(--text-secondary);
}

.cursor {
    animation: blink 1s step-end infinite;
    color: var(--primary);
}

.hero-description {
    font-size: 1.125rem;
    line-height: 1.8;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    max-width: 600px;
}

.persona-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-bottom: 2rem;
}

.persona-chip {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.625rem 1.25rem;
    border: 2px solid var(--border-color);
    border-radius: 2rem;
    background-color: transparent;
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-base);
}

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

.persona-chip.active {
    background: var(--gradient-primary);
    border-color: transparent;
    color: white;
    box-shadow: var(--shadow-lg);
}

.hero-cta {
    display: flex;
    gap: 1rem;
    margin-bottom: 2rem;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.875rem 1.75rem;
    border: none;
    border-radius: var(--radius-lg);
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.3);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn:hover::before {
    width: 300px;
    height: 300px;
}

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: var(--shadow-md);
}

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

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

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

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

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

.btn-block {
    width: 100%;
    justify-content: center;
}

.hero-social {
    display: flex;
    gap: 1rem;
}

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 45px;
    height: 45px;
    border-radius: var(--radius-lg);
    background-color: var(--bg-secondary);
    color: var(--text-secondary);
    text-decoration: none;
    transition: all var(--transition-base);
}

.social-link:hover {
    background: var(--gradient-primary);
    color: white;
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.hero-visual {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    animation: fadeIn 1s ease-out 0.3s both;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.profile-card {
    position: relative;
    width: 400px;
    height: 400px;
    border-radius: var(--radius-2xl);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
}

.card-glow {
    position: absolute;
    inset: -2px;
    background: var(--gradient-mesh);
    border-radius: var(--radius-2xl);
    filter: blur(20px);
    opacity: 0.5;
    z-index: -1;
}

.profile-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: var(--radius-2xl);
}

.floating-badge {
    position: absolute;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.25rem;
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-radius: 2rem;
    box-shadow: var(--shadow-lg);
    font-weight: 600;
    animation: float 3s ease-in-out infinite;
}

[data-theme="dark"] .floating-badge {
    background-color: rgba(15, 23, 42, 0.95);
}

.badge-1 {
    top: 10%;
    right: -10%;
    animation-delay: 0s;
}

.badge-2 {
    bottom: 30%;
    left: -15%;
    animation-delay: 1s;
}

.badge-3 {
    bottom: 10%;
    right: -5%;
    animation-delay: 2s;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

.scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-tertiary);
    animation: bounce 2s ease-in-out infinite;
}

@keyframes bounce {
    0%, 100% { transform: translate(-50%, 0); }
    50% { transform: translate(-50%, -10px); }
}

.scroll-text {
    font-size: 0.875rem;
    font-weight: 500;
}

/* ===================================
   6. SECTION STYLES
   =================================== */
.section {
    padding: 6rem 2rem;
    position: relative;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-label {
    display: inline-block;
    padding: 0.5rem 1rem;
    background: var(--gradient-primary);
    color: white;
    border-radius: 2rem;
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 1rem;
}

.section-title {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 800;
    margin-bottom: 1rem;
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

.section-cta {
    text-align: center;
    margin-top: 3rem;
}

/* ===================================
   7. ABOUT SECTION
   =================================== */
.about-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: 3rem;
    align-items: start;
}

.about-text {
    font-size: 1.125rem;
    line-height: 1.8;
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
}

.about-text.lead {
    font-size: 1.25rem;
    color: var(--text-primary);
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 2rem;
    margin: 3rem 0;
    padding: 2rem;
    background-color: var(--bg-secondary);
    border-radius: var(--radius-xl);
}

.stat-item {
    text-align: center;
}

.stat-number {
    display: block;
    font-size: 3rem;
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    display: block;
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-top: 0.5rem;
}

.about-actions {
    display: flex;
    gap: 1rem;
}

.core-competencies {
    margin-top: 2rem;
    padding: 1.5rem;
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    border-left: 4px solid var(--primary);
}

.core-competencies h4 {
    font-size: 1.1rem;
    color: var(--text-primary);
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.core-competencies h4 i {
    color: var(--primary);
}

.competency-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.competency-tag {
    padding: 0.5rem 1rem;
    background: linear-gradient(135deg, var(--primary-light) 0%, var(--primary) 100%);
    color: white;
    border-radius: var(--radius-full);
    font-size: 0.85rem;
    font-weight: 500;
    transition: all var(--transition-base);
    box-shadow: var(--shadow-sm);
}

.competency-tag:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.about-highlights {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.highlight-card {
    padding: 2rem;
    background-color: var(--bg-secondary);
    border-radius: var(--radius-xl);
    border: 1px solid var(--border-color);
    transition: all var(--transition-base);
}

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

.highlight-icon {
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-primary);
    color: white;
    border-radius: var(--radius-lg);
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.highlight-card h3 {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
}

.highlight-card p {
    color: var(--text-secondary);
    margin-bottom: 0.25rem;
}

.highlight-detail {
    font-size: 0.875rem;
    color: var(--text-tertiary);
}

/* ===================================
   8. EDUCATION SECTION
   =================================== */
.education-grid {
    display: grid;
    gap: 2rem;
    max-width: 900px;
    margin: 0 auto;
}

.education-card {
    background: var(--bg-secondary);
    border-radius: var(--radius-xl);
    border: 1px solid var(--border-color);
    padding: 2.5rem;
    display: flex;
    gap: 2rem;
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.education-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transition: transform var(--transition-base);
}

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

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

.education-icon {
    width: 70px;
    height: 70px;
    border-radius: var(--radius-lg);
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    font-size: 2rem;
    color: white;
    box-shadow: var(--shadow-lg);
}

.education-content {
    flex: 1;
}

.education-degree {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
    color: var(--text-primary);
}

.education-institution {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
}

.education-institution i {
    color: var(--primary);
}

.education-institution a {
    color: var(--primary);
    text-decoration: none;
    transition: color var(--transition-base);
}

.education-institution a:hover {
    color: var(--secondary);
}

.education-period {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: var(--primary-light);
    color: var(--primary);
    border-radius: var(--radius-full);
    font-size: 0.9rem;
    font-weight: 500;
    margin-bottom: 1.5rem;
}

.education-description {
    margin-top: 1.5rem;
    line-height: 1.8;
}

.education-description p {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
}

.education-details h4 {
    font-size: 1.1rem;
    color: var(--text-primary);
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.education-details h4 i {
    color: var(--primary);
}

.coursework-list {
    list-style: none;
    padding: 0;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 0.75rem;
}

.coursework-list li {
    padding: 0.75rem 1rem;
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    border-left: 3px solid var(--primary);
    color: var(--text-secondary);
    transition: all var(--transition-base);
}

.coursework-list li:hover {
    background: var(--primary-light);
    transform: translateX(5px);
}

.education-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-top: 1.5rem;
}

/* ===================================
   9. EXPERIENCE SECTION
   =================================== */
.timeline {
    position: relative;
    padding: 2rem 0;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--gradient-primary);
    transform: translateX(-50%);
}

.timeline-item {
    position: relative;
    margin-bottom: 3rem;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
}

.timeline-item:nth-child(even) .timeline-content {
    grid-column: 1;
    grid-row: 1;
}

.timeline-marker {
    position: absolute;
    left: 50%;
    top: 2rem;
    width: 20px;
    height: 20px;
    background: var(--gradient-primary);
    border: 4px solid var(--bg-primary);
    border-radius: 50%;
    transform: translateX(-50%);
    z-index: 1;
    box-shadow: 0 0 0 4px var(--primary-light);
}

.timeline-content {
    grid-column: 2;
}

.timeline-item:nth-child(even) .timeline-content {
    text-align: right;
}

.experience-card {
    padding: 2rem;
    background-color: var(--bg-secondary);
    border-radius: var(--radius-xl);
    border: 1px solid var(--border-color);
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.experience-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transition: transform var(--transition-base);
}

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

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

.experience-header {
    display: flex;
    gap: 1.5rem;
    margin-bottom: 1.5rem;
}

.experience-logo {
    width: 60px;
    height: 60px;
    border-radius: var(--radius-lg);
    overflow: hidden;
    flex-shrink: 0;
}

.experience-logo img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.experience-title {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
}

.experience-company a {
    color: var(--primary);
    text-decoration: none;
    font-weight: 600;
}

.experience-period {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-tertiary);
    font-size: 0.875rem;
}

.experience-description p {
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

.experience-highlights {
    list-style: none;
    padding: 0;
}

.experience-highlights li {
    position: relative;
    padding-left: 1.5rem;
    margin-bottom: 0.5rem;
    color: var(--text-secondary);
}

.experience-highlights li::before {
    content: '▹';
    position: absolute;
    left: 0;
    color: var(--primary);
    font-weight: bold;
}

.experience-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 1.5rem;
}

.tag {
    padding: 0.375rem 0.875rem;
    background-color: var(--bg-tertiary);
    border-radius: 2rem;
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--text-secondary);
}

/* ===================================
   10. LEADERSHIP & VOLUNTEER SECTION
   =================================== */
.leadership-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 2rem;
}

.leadership-card {
    background: var(--bg-secondary);
    border-radius: var(--radius-xl);
    border: 1px solid var(--border-color);
    padding: 2rem;
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.leadership-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: var(--gradient-secondary);
    transform: scaleX(0);
    transition: transform var(--transition-base);
}

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

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

.leadership-icon {
    width: 60px;
    height: 60px;
    border-radius: var(--radius-lg);
    background: var(--gradient-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.75rem;
    color: white;
    margin-bottom: 1.5rem;
    box-shadow: var(--shadow-md);
}

.leadership-content {
    flex: 1;
}

.leadership-title {
    font-size: 1.375rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.leadership-organization {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1rem;
    color: var(--secondary);
    font-weight: 600;
    margin-bottom: 0.75rem;
}

.leadership-organization i {
    color: var(--secondary);
}

.leadership-period {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: rgba(16, 185, 129, 0.1);
    color: var(--secondary);
    border-radius: var(--radius-full);
    font-size: 0.9rem;
    font-weight: 500;
    margin-bottom: 1.5rem;
}

.leadership-description {
    margin-top: 1rem;
    line-height: 1.8;
}

.leadership-description p {
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

.leadership-highlights {
    list-style: none;
    padding: 0;
    margin: 1rem 0;
}

.leadership-highlights li {
    padding: 0.625rem 0;
    padding-left: 1.5rem;
    position: relative;
    color: var(--text-secondary);
    line-height: 1.6;
}

.leadership-highlights li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--secondary);
    font-weight: bold;
    font-size: 1.1rem;
}

.leadership-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-top: 1.5rem;
}

/* ===================================
   11. PROJECTS SECTION
   =================================== */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 2rem;
}

.project-card {
    background-color: var(--bg-secondary);
    border-radius: var(--radius-xl);
    overflow: hidden;
    border: 1px solid var(--border-color);
    transition: all var(--transition-base);
}

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

.project-image {
    position: relative;
    width: 100%;
    height: 250px;
    overflow: hidden;
}

.project-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.project-card:hover .project-image img {
    transform: scale(1.1);
}

.project-overlay {
    position: absolute;
    inset: 0;
    background-color: rgba(0, 0, 0, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    opacity: 0;
    transition: opacity var(--transition-base);
}

.project-card:hover .project-overlay {
    opacity: 1;
}

.project-link {
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: white;
    color: var(--text-primary);
    border-radius: 50%;
    text-decoration: none;
    transition: all var(--transition-base);
}

.project-link:hover {
    background: var(--gradient-primary);
    color: white;
    transform: scale(1.1);
}

.project-content {
    padding: 2rem;
}

.project-title {
    font-size: 1.25rem;
    margin-bottom: 1rem;
}

.project-description {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.tech-tag {
    padding: 0.375rem 0.875rem;
    background: var(--gradient-primary);
    color: white;
    border-radius: 2rem;
    font-size: 0.8125rem;
    font-weight: 500;
}

/* ===================================
   12. SKILLS SECTION
   =================================== */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.skill-category {
    padding: 2rem;
    background-color: var(--bg-secondary);
    border-radius: var(--radius-xl);
    border: 1px solid var(--border-color);
    transition: all var(--transition-base);
}

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

.category-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.category-header i {
    font-size: 1.5rem;
    color: var(--primary);
}

.category-header h3 {
    font-size: 1.25rem;
}

.skill-items {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
    gap: 1rem;
}

.skill-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem;
    background-color: var(--bg-primary);
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
}

.skill-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.skill-item img {
    width: 50px;
    height: 50px;
    object-fit: contain;
}

.skill-item span {
    font-size: 0.875rem;
    font-weight: 500;
    text-align: center;
}

/* ===================================
   13. CONTACT SECTION
   =================================== */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 3rem;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.contact-card {
    padding: 2rem;
    background-color: var(--bg-secondary);
    border-radius: var(--radius-xl);
    border: 1px solid var(--border-color);
    text-align: center;
    transition: all var(--transition-base);
}

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

.contact-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-primary);
    color: white;
    border-radius: 50%;
    font-size: 1.5rem;
}

.contact-card h3 {
    font-size: 1.125rem;
    margin-bottom: 0.5rem;
}

.contact-card a {
    color: var(--primary);
    text-decoration: none;
    font-weight: 500;
}

.contact-form {
    padding: 2rem;
    background-color: var(--bg-secondary);
    border-radius: var(--radius-xl);
    border: 1px solid var(--border-color);
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.875rem 1rem;
    background-color: var(--bg-primary);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    font-family: inherit;
    font-size: 1rem;
    color: var(--text-primary);
    transition: all var(--transition-base);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.form-status {
    margin-top: 1rem;
    padding: 1rem;
    border-radius: var(--radius-md);
    text-align: center;
    display: none;
}

.form-status.success {
    background-color: rgba(16, 185, 129, 0.1);
    color: var(--secondary);
    border: 1px solid var(--secondary);
}

.form-status.error {
    background-color: rgba(239, 68, 68, 0.1);
    color: #EF4444;
    border: 1px solid #EF4444;
}

/* ===================================
   12. FOOTER
   =================================== */
.footer {
    padding: 3rem 2rem;
    background-color: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
}

.footer-content {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-text {
    color: var(--text-secondary);
}

.footer-text i {
    color: #EF4444;
}

.footer-social {
    display: flex;
    gap: 1rem;
}

.footer-social a {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--bg-primary);
    color: var(--text-secondary);
    border-radius: var(--radius-lg);
    text-decoration: none;
    transition: all var(--transition-base);
}

.footer-social a:hover {
    background: var(--gradient-primary);
    color: white;
    transform: translateY(-3px);
}

/* ===================================
   13. BACK TO TOP BUTTON
   =================================== */
.back-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 50px;
    height: 50px;
    background: var(--gradient-primary);
    color: white;
    border: none;
    border-radius: 50%;
    font-size: 1.25rem;
    cursor: pointer;
    box-shadow: var(--shadow-xl);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
    z-index: var(--z-sticky);
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
}

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

/* ===================================
   14. RESPONSIVE DESIGN
   =================================== */
@media (max-width: 1024px) {
    .hero-container {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    
    .hero-visual {
        order: -1;
    }
    
    .profile-card {
        width: 300px;
        height: 300px;
    }
    
    .about-grid {
        grid-template-columns: 1fr;
    }
    
    .education-card {
        flex-direction: column;
        text-align: center;
    }
    
    .education-icon {
        margin: 0 auto;
    }
    
    .timeline::before {
        left: 20px;
    }
    
    .timeline-item {
        grid-template-columns: 1fr;
        padding-left: 60px;
    }
    
    .timeline-marker {
        left: 20px;
    }
    
    .timeline-content {
        grid-column: 1;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 80px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 80px);
        background-color: var(--bg-primary);
        flex-direction: column;
        align-items: center;
        justify-content: center;
        gap: 2rem;
        transition: left var(--transition-base);
        border-top: 1px solid var(--border-color);
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .mobile-toggle {
        display: flex;
    }
    
    .mobile-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(8px, 8px);
    }
    
    .mobile-toggle.active span:nth-child(2) {
        opacity: 0;
    }
    
    .mobile-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -7px);
    }
    
    .hero-cta {
        flex-direction: column;
    }
    
    .about-stats {
        grid-template-columns: 1fr;
    }
    
    .about-actions {
        flex-direction: column;
    }
    
    .projects-grid {
        grid-template-columns: 1fr;
    }
    
    .leadership-grid {
        grid-template-columns: 1fr;
    }
    
    .skills-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        flex-direction: column;
        gap: 2rem;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .section {
        padding: 4rem 1rem;
    }
    
    .persona-chips {
        flex-direction: column;
    }
    
    .persona-chip {
        width: 100%;
        justify-content: center;
    }
    
    .floating-badge {
        display: none;
    }
    
    .profile-card {
        width: 250px;
        height: 250px;
    }
}

/* ===================================
   15. UTILITIES & ANIMATIONS
   =================================== */
.hidden {
    display: none !important;
}

.fade-in {
    animation: fadeIn 0.5s ease-out;
}

.slide-up {
    animation: fadeInUp 0.5s ease-out;
}

/* Loading State */
.loading {
    pointer-events: none;
    opacity: 0.6;
}

/* Print Styles */
@media print {
    .navbar,
    .scroll-indicator,
    .back-to-top,
    .theme-toggle,
    .mobile-toggle {
        display: none !important;
    }
}

/* Hugging Face emoji icon sizing in social links/cards */
.hf-icon {
    font-size: 1.05em;
    line-height: 1;
    display: inline-block;
}

/* ===== Open-Source AI Models & Deployments ===== */
.models { background: var(--bg-secondary); }

.models-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-2xl);
}
.model-stat {
    text-align: center;
    padding: var(--spacing-lg) var(--spacing-sm);
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-sm);
}
.model-stat-number {
    display: block;
    font-family: var(--font-secondary);
    font-size: 2.25rem;
    font-weight: 800;
    line-height: 1;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}
.model-stat-label {
    display: block;
    margin-top: var(--spacing-xs);
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.models-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(330px, 1fr));
    gap: var(--spacing-lg);
}
.model-card {
    display: flex;
    flex-direction: column;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-sm);
    transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
}
.model-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary);
}
.model-card-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
}
.model-type {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--primary);
    background: rgba(59, 130, 246, 0.1);
    padding: 0.3rem 0.65rem;
    border-radius: var(--radius-md);
    white-space: nowrap;
}
.model-downloads {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-secondary);
    white-space: nowrap;
}
.model-name {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0 0 0.15rem;
}
.model-base {
    font-size: 0.82rem;
    color: var(--accent);
    font-weight: 600;
    margin: 0 0 var(--spacing-sm);
}
.model-desc {
    font-size: 0.92rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin: 0 0 var(--spacing-md);
    flex-grow: 1;
}
.model-hosting {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
    margin-bottom: var(--spacing-md);
}
.hosting-badge {
    font-size: 0.72rem;
    font-weight: 500;
    color: var(--text-secondary);
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    padding: 0.28rem 0.6rem;
    border-radius: var(--radius-md);
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
}
.hosting-badge i { color: var(--secondary); }
.model-links {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: auto;
}
.model-link {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--text-primary);
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    padding: 0.45rem 0.8rem;
    border-radius: var(--radius-md);
    text-decoration: none;
    transition: all var(--transition-fast);
}
.model-link:hover { background: var(--border-color); transform: translateY(-2px); }
.model-link.primary {
    color: #fff;
    background: var(--gradient-primary);
    border-color: transparent;
}
.model-link.primary:hover { opacity: 0.92; }

@media (max-width: 768px) {
    .models-stats { grid-template-columns: repeat(2, 1fr); }
    .model-stat-number { font-size: 1.9rem; }
    .models-grid { grid-template-columns: 1fr; }
}

/* ===== Certifications ===== */
.certs-block { margin-top: var(--spacing-2xl); }
.certs-heading {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-lg);
}
.certs-heading i { color: var(--primary); }
.certs-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--spacing-sm);
}
.cert-card {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: transform var(--transition-fast), border-color var(--transition-fast);
}
.cert-card:hover { transform: translateY(-3px); border-color: var(--primary); }
.cert-card > i {
    font-size: 1.4rem;
    color: var(--primary);
    width: 2.4rem;
    height: 2.4rem;
    display: grid;
    place-items: center;
    background: rgba(59, 130, 246, 0.1);
    border-radius: var(--radius-md);
    flex-shrink: 0;
}
.cert-card h4 { font-size: 0.95rem; font-weight: 600; color: var(--text-primary); margin: 0; }
.cert-card span { font-size: 0.8rem; color: var(--text-secondary); }

/* ===== Research & Recognition ===== */
.research-grid {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: var(--spacing-xl);
}
.research-subhead {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: var(--spacing-lg) 0 var(--spacing-md);
}
.research-subhead:first-child { margin-top: 0; }
.research-subhead i { color: var(--primary); }
.research-subhead-note {
    font-size: 0.72rem;
    font-weight: 600;
    color: var(--secondary);
    background: rgba(16, 185, 129, 0.12);
    padding: 0.2rem 0.55rem;
    border-radius: var(--radius-md);
}
.pub-card {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-left: 3px solid var(--primary);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
    box-shadow: var(--shadow-sm);
}
.pub-card h4 {
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0 0 0.4rem;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.5rem;
}
.pub-card p { font-size: 0.9rem; color: var(--text-secondary); line-height: 1.6; margin: 0; }
.pub-card a { color: var(--primary); font-weight: 600; text-decoration: none; }
.pub-card a:hover { text-decoration: underline; }
.pub-tag {
    font-size: 0.68rem;
    font-weight: 600;
    color: var(--primary);
    background: rgba(59, 130, 246, 0.1);
    padding: 0.2rem 0.5rem;
    border-radius: var(--radius-sm);
}
.pub-tag.award { color: var(--secondary); background: rgba(16, 185, 129, 0.12); }
.forthcoming-list { list-style: none; padding: 0; margin: 0; }
.forthcoming-list li {
    position: relative;
    padding-left: 1.5rem;
    margin-bottom: 0.7rem;
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.55;
}
.forthcoming-list li::before {
    content: "\f15c";
    font-family: "Font Awesome 6 Free";
    font-weight: 900;
    position: absolute;
    left: 0;
    top: 0.1rem;
    color: var(--accent);
    font-size: 0.8rem;
}
.chip-cloud { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-bottom: var(--spacing-md); }
.award-chip, .org-chip {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    font-size: 0.82rem;
    font-weight: 500;
    color: var(--text-primary);
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    padding: 0.45rem 0.75rem;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
}
.award-chip i { color: var(--secondary); }
.award-chip em { color: var(--text-tertiary); font-style: normal; font-size: 0.75rem; }
.org-chip { color: var(--text-secondary); }

@media (max-width: 768px) {
    .research-grid { grid-template-columns: 1fr; gap: var(--spacing-lg); }
}

/* GenAI skill items rendered with Font Awesome icons */
.skill-item i.skill-fa {
    font-size: 42px;
    height: 50px;
    display: grid;
    place-items: center;
    color: var(--primary);
}

/* ===== Hero credibility stat strip ===== */
.hero-stats {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-lg);
    margin-top: var(--spacing-lg);
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--border-color);
}
.hero-stat { display: flex; flex-direction: column; min-width: 90px; }
.hero-stat-num {
    font-family: var(--font-secondary);
    font-size: 1.6rem;
    font-weight: 800;
    line-height: 1.1;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}
.hero-stat-text { font-size: 0.78rem; color: var(--text-secondary); margin-top: 0.15rem; }

@media (max-width: 768px) {
    .hero-stats { gap: var(--spacing-md); }
    .hero-stat-num { font-size: 1.35rem; }
}

/* ===== AI Automation ===== */
.automation { background: var(--bg-primary); }
.auto-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: var(--spacing-lg);
}
.auto-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-sm);
    transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
}
.auto-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: var(--secondary); }
.auto-icon {
    width: 3rem; height: 3rem;
    display: grid; place-items: center;
    font-size: 1.3rem; color: #fff;
    background: var(--gradient-primary);
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-sm);
}
.auto-card h3 { font-size: 1.12rem; font-weight: 700; color: var(--text-primary); margin: 0 0 0.5rem; }
.auto-card p { font-size: 0.9rem; color: var(--text-secondary); line-height: 1.6; margin: 0 0 var(--spacing-md); }
.auto-tags { display: flex; flex-wrap: wrap; gap: 0.4rem; }
.auto-tags span {
    font-size: 0.72rem; font-weight: 600;
    color: var(--primary);
    background: rgba(59, 130, 246, 0.1);
    padding: 0.25rem 0.55rem;
    border-radius: var(--radius-md);
}
@media (max-width: 768px) { .auto-grid { grid-template-columns: 1fr; } }

/* Live screenshot thumbnail in model cards */
.model-shot {
    display: block;
    margin: calc(-1 * var(--spacing-lg)) calc(-1 * var(--spacing-lg)) var(--spacing-md);
    border-radius: var(--radius-xl) var(--radius-xl) 0 0;
    overflow: hidden;
    border-bottom: 1px solid var(--border-color);
}
.model-shot img {
    width: 100%;
    height: 165px;
    object-fit: cover;
    object-position: top center;
    display: block;
    transition: transform var(--transition-base);
}
.model-shot:hover img { transform: scale(1.04); }

/* Featured automation builds spacing */
.auto-builds { margin-bottom: var(--spacing-2xl); }

/* ===== Selected Work: filter bar + category badges ===== */
.work-filter {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.6rem;
    margin-bottom: var(--spacing-xl);
}
.filter-btn {
    font-family: var(--font-secondary);
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-secondary);
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    padding: 0.55rem 1.15rem;
    border-radius: var(--radius-xl);
    cursor: pointer;
    transition: all var(--transition-fast);
}
.filter-btn:hover { color: var(--primary); border-color: var(--primary); }
.filter-btn.active { color: #fff; background: var(--gradient-primary); border-color: transparent; }

.project-image { position: relative; }
.project-badge {
    position: absolute;
    top: 0.75rem;
    left: 0.75rem;
    z-index: 2;
    font-size: 0.68rem;
    font-weight: 700;
    letter-spacing: 0.02em;
    color: #fff;
    padding: 0.25rem 0.6rem;
    border-radius: var(--radius-md);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
}
.badge-model { background: rgba(139, 92, 246, 0.92); }
.badge-app { background: rgba(59, 130, 246, 0.92); }
.badge-automation { background: rgba(16, 185, 129, 0.92); }
.badge-data { background: rgba(245, 158, 11, 0.92); }

/* Organisation chip logos */
.org-chip img {
    width: 16px;
    height: 16px;
    object-fit: contain;
    border-radius: 3px;
}
.org-chip i { color: var(--primary); font-size: 0.85rem; }