/* ===================================================================
   KISHORE PAGIDI - PORTFOLIO STYLES
   Modern, clean design inspired by contemporary portfolio aesthetics
   =================================================================== */

/* CSS Variables */
:root {
    /* Colors */
    --color-bg: #0a0a0b;
    --color-bg-secondary: #111113;
    --color-bg-tertiary: #18181b;
    --color-surface: #1c1c1f;
    --color-border: #27272a;
    --color-border-light: #3f3f46;

    --color-text: #fafafa;
    --color-text-secondary: #a1a1aa;
    --color-text-muted: #71717a;

    --color-primary: #6366f1;
    --color-primary-light: #818cf8;
    --color-primary-dark: #4f46e5;

    --color-accent: #22d3ee;
    --color-success: #10b981;
    --color-warning: #f59e0b;

    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #6366f1 0%, #8b5cf6 50%, #a855f7 100%);
    --gradient-accent: linear-gradient(135deg, #22d3ee 0%, #6366f1 100%);
    --gradient-hero: radial-gradient(ellipse at 50% 0%, rgba(99, 102, 241, 0.15) 0%, transparent 50%);

    /* Typography */
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-display: 'Playfair Display', Georgia, serif;

    /* Spacing */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    --space-3xl: 4rem;
    --space-4xl: 6rem;
    --space-5xl: 8rem;

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

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 350ms ease;
    --transition-slower: 500ms ease;

    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.5);
    --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.6);
    --shadow-glow: 0 0 40px rgba(99, 102, 241, 0.3);
}

/* Reset & Base */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

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

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

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

a {
    color: inherit;
    text-decoration: none;
}

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

/* Container */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

@media (min-width: 768px) {
    .container {
        padding: 0 var(--space-xl);
    }
}

/* Section */
.section {
    padding: var(--space-4xl) 0;
}

@media (min-width: 768px) {
    .section {
        padding: var(--space-5xl) 0;
    }
}

.section-header {
    margin-bottom: var(--space-3xl);
}

.section-header--center {
    text-align: center;
}

.section-label {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--color-primary);
    margin-bottom: var(--space-md);
}

.section-title {
    font-family: var(--font-display);
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 600;
    line-height: 1.2;
    color: var(--color-text);
}

.section-description {
    font-size: 1.125rem;
    color: var(--color-text-secondary);
    max-width: 600px;
    margin-top: var(--space-lg);
}

/* Typography Utilities */
.gradient-text {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.lead {
    font-size: 1.25rem;
    line-height: 1.7;
    color: var(--color-text);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-md) var(--space-xl);
    font-size: 0.9375rem;
    font-weight: 500;
    border-radius: var(--radius-full);
    transition: all var(--transition-base);
}

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: 0 4px 15px rgba(99, 102, 241, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(99, 102, 241, 0.5);
}

.btn-secondary {
    background: transparent;
    color: var(--color-text);
    border: 1px solid var(--color-border-light);
}

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

/* ===================================================================
   NAVIGATION
   =================================================================== */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: var(--space-lg) 0;
    transition: all var(--transition-base);
}

.nav.scrolled {
    background: rgba(10, 10, 11, 0.9);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--color-border);
    padding: var(--space-md) 0;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-text);
}

.nav-menu {
    display: none;
    list-style: none;
    gap: var(--space-xl);
}

@media (min-width: 768px) {
    .nav-menu {
        display: flex;
        align-items: center;
    }
}

.nav-link {
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--color-text-secondary);
    transition: color var(--transition-fast);
}

.nav-link:hover {
    color: var(--color-text);
}

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

.nav-link--cta {
    padding: var(--space-sm) var(--space-lg);
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-full);
    color: var(--color-text);
}

.nav-link--cta:hover {
    background: var(--color-primary);
    border-color: var(--color-primary);
}

/* Mobile Nav Toggle */
.nav-toggle {
    display: flex;
    flex-direction: column;
    gap: 5px;
    padding: var(--space-sm);
    z-index: 1001;
}

.nav-toggle span {
    width: 24px;
    height: 2px;
    background: var(--color-text);
    transition: all var(--transition-base);
}

.nav-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

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

.nav-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

@media (min-width: 768px) {
    .nav-toggle {
        display: none;
    }
}

/* Mobile Menu */
@media (max-width: 767px) {
    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        max-width: 320px;
        height: 100vh;
        background: var(--color-bg-secondary);
        flex-direction: column;
        padding: var(--space-5xl) var(--space-xl);
        gap: var(--space-lg);
        transition: right var(--transition-slow);
        border-left: 1px solid var(--color-border);
    }

    .nav-menu.active {
        display: flex;
        right: 0;
    }

    .nav-link {
        font-size: 1.125rem;
    }
}

/* ===================================================================
   HERO SECTION
   =================================================================== */
.hero {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    position: relative;
    padding-top: var(--space-5xl);
    overflow: hidden;
}

.hero-background {
    position: absolute;
    inset: 0;
    pointer-events: none;
    background: url('../images/assets-website/1.jpg') center center / cover no-repeat;
}

.hero-gradient {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(10, 10, 11, 0.85) 0%, rgba(10, 10, 11, 0.7) 50%, rgba(10, 10, 11, 0.85) 100%);
}

.hero-grid {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(99, 102, 241, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(99, 102, 241, 0.03) 1px, transparent 1px);
    background-size: 60px 60px;
    mask-image: radial-gradient(ellipse at center, black 0%, transparent 70%);
}

.hero .container {
    display: grid;
    gap: var(--space-3xl);
    align-items: center;
}

@media (min-width: 1024px) {
    .hero .container {
        grid-template-columns: 1.2fr 1fr;
        gap: var(--space-4xl);
    }
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-lg);
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-xl);
}

.badge-dot {
    width: 8px;
    height: 8px;
    background: var(--color-success);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(1.2); }
}

.hero-name {
    font-size: clamp(1.25rem, 2.5vw, 1.75rem);
    font-weight: 600;
    color: var(--color-primary-light);
    margin-bottom: var(--space-md);
    letter-spacing: 0.02em;
}

.hero-title {
    font-family: var(--font-display);
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: 600;
    line-height: 1.1;
    margin-bottom: var(--space-xl);
}

.hero-description {
    font-size: 1.125rem;
    color: var(--color-text-secondary);
    max-width: 540px;
    margin-bottom: var(--space-2xl);
    line-height: 1.8;
}

.hero-cta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-md);
}

/* Hero Visual Card */
.hero-visual {
    display: none;
}

@media (min-width: 1024px) {
    .hero-visual {
        display: block;
    }
}

.hero-card {
    position: relative;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-2xl);
    padding: var(--space-xl);
    overflow: hidden;
}

.hero-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-primary);
}

.hero-stats {
    display: grid;
    gap: var(--space-xl);
}

.stat {
    text-align: center;
    padding: var(--space-lg);
    background: var(--color-bg);
    border-radius: var(--radius-xl);
}

.stat-number {
    font-family: var(--font-display);
    font-size: 3rem;
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-number::after {
    content: '+';
    -webkit-text-fill-color: var(--color-primary-light);
}

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

/* Scroll Indicator */
.scroll-indicator {
    position: absolute;
    bottom: var(--space-2xl);
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-sm);
    color: var(--color-text-muted);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.scroll-arrow {
    width: 20px;
    height: 30px;
    border: 2px solid var(--color-border-light);
    border-radius: var(--radius-full);
    position: relative;
}

.scroll-arrow::after {
    content: '';
    position: absolute;
    top: 6px;
    left: 50%;
    transform: translateX(-50%);
    width: 4px;
    height: 8px;
    background: var(--color-primary);
    border-radius: var(--radius-full);
    animation: scroll-down 1.5s infinite;
}

@keyframes scroll-down {
    0% { opacity: 1; transform: translateX(-50%) translateY(0); }
    100% { opacity: 0; transform: translateX(-50%) translateY(10px); }
}

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

.about-content {
    display: grid;
    gap: var(--space-3xl);
    align-items: center;
}

@media (min-width: 1024px) {
    .about-content {
        grid-template-columns: 1.2fr 1fr;
    }
}

.about-text p {
    color: var(--color-text-secondary);
    margin-bottom: var(--space-lg);
}

.about-text p strong {
    color: var(--color-primary-light);
}

.about-highlights {
    display: grid;
    gap: var(--space-lg);
    margin-top: var(--space-2xl);
}

@media (min-width: 640px) {
    .about-highlights {
        grid-template-columns: repeat(2, 1fr);
    }
}

.highlight {
    display: flex;
    gap: var(--space-lg);
    padding: var(--space-lg);
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    transition: all var(--transition-base);
}

.highlight:hover {
    border-color: var(--color-primary);
    transform: translateX(8px);
}

.highlight-icon {
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    color: var(--color-primary);
}

.highlight h4 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: var(--space-xs);
}

.highlight p {
    font-size: 0.875rem;
    color: var(--color-text-muted);
    margin-bottom: 0;
}

/* About Image */
.about-image {
    display: none;
}

@media (min-width: 1024px) {
    .about-image {
        display: block;
    }
}

.image-frame {
    position: relative;
    border-radius: var(--radius-2xl);
    overflow: hidden;
}

.image-frame img {
    width: 100%;
    aspect-ratio: 4/5;
    object-fit: cover;
    filter: grayscale(20%);
    transition: filter var(--transition-slow);
}

.image-frame:hover img {
    filter: grayscale(0%);
}

.image-decoration {
    position: absolute;
    inset: 0;
    border: 2px solid var(--color-primary);
    border-radius: var(--radius-2xl);
    transform: translate(16px, 16px);
    pointer-events: none;
    z-index: -1;
}

/* ===================================================================
   PROJECTS SECTION
   =================================================================== */
.projects {
    background: var(--color-bg);
}

.projects-grid {
    display: grid;
    gap: var(--space-xl);
}

@media (min-width: 768px) {
    .projects-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .projects-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* Project Card */
.project-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-2xl);
    overflow: hidden;
    transition: all var(--transition-base);
}

.project-card:hover {
    border-color: var(--color-border-light);
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

.project-card--featured {
    grid-column: 1 / -1;
    display: grid;
}

@media (min-width: 768px) {
    .project-card--featured {
        grid-template-columns: 1fr 1.2fr;
    }
}

.project-image {
    position: relative;
    aspect-ratio: 16/10;
    overflow: hidden;
    background: var(--color-bg-tertiary);
}

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

.project-card:hover .project-image img {
    transform: scale(1.05);
}

.project-card--featured .project-image {
    aspect-ratio: 4/3;
}

@media (min-width: 768px) {
    .project-card--featured .project-image {
        aspect-ratio: auto;
    }
}

.project-image-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--accent, #6366f1) 0%, transparent 100%),
                var(--color-bg-secondary);
    color: var(--accent, #6366f1);
    opacity: 0.8;
    transition: opacity var(--transition-base);
}

.project-card:hover .project-image-placeholder {
    opacity: 1;
}

.project-badge {
    position: absolute;
    top: var(--space-md);
    right: var(--space-md);
    padding: var(--space-xs) var(--space-md);
    background: var(--color-primary);
    color: white;
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: var(--radius-full);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.project-content {
    padding: var(--space-xl);
}

.project-category {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-primary);
    margin-bottom: var(--space-sm);
}

.project-title {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: var(--space-md);
}

.project-description {
    font-size: 0.9375rem;
    color: var(--color-text-secondary);
    line-height: 1.7;
    margin-bottom: var(--space-lg);
}

.project-meta {
    margin-bottom: var(--space-lg);
}

.project-stats {
    display: flex;
    gap: var(--space-xl);
}

.project-stat {
    display: flex;
    flex-direction: column;
}

.project-stat .stat-value {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-primary-light);
}

.project-stat .stat-label {
    font-size: 0.75rem;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.project-impact .impact-label {
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    color: var(--color-text-muted);
    margin-bottom: var(--space-xs);
    display: block;
}

.project-impact .impact-value {
    font-size: 0.9375rem;
    color: var(--color-text-secondary);
}

.project-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm);
}

.tag {
    padding: var(--space-xs) var(--space-md);
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    color: var(--color-text-secondary);
}

/* ===================================================================
   IMPACT SECTION
   =================================================================== */
.impact {
    background: linear-gradient(135deg, rgba(10, 10, 11, 0.92) 0%, rgba(10, 10, 11, 0.88) 100%),
                url('../images/assets-website/10.jpg') center center / cover no-repeat;
    background-attachment: fixed;
}

.impact-grid {
    display: grid;
    gap: var(--space-lg);
    grid-template-columns: repeat(2, 1fr);
}

@media (min-width: 768px) {
    .impact-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (min-width: 1024px) {
    .impact-grid {
        grid-template-columns: repeat(6, 1fr);
    }
}

.impact-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    padding: var(--space-xl);
    text-align: center;
    transition: all var(--transition-base);
}

.impact-card:hover {
    border-color: var(--color-primary);
    transform: translateY(-4px);
}

.impact-card--featured {
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.15) 0%, rgba(139, 92, 246, 0.1) 100%),
                var(--color-surface);
    border-color: var(--color-primary);
}

@media (min-width: 1024px) {
    .impact-card--featured {
        grid-column: span 2;
    }

    .impact-card--featured .impact-number {
        font-size: 3.5rem;
    }
}

.impact-number {
    font-family: var(--font-display);
    font-size: 2.5rem;
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
    display: inline;
}

.impact-plus {
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-primary-light);
    display: inline;
}

.impact-icon {
    color: var(--color-primary);
    margin-bottom: var(--space-sm);
}

.impact-label {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--color-text);
    margin-top: var(--space-sm);
    margin-bottom: var(--space-xs);
}

.impact-description {
    font-size: 0.75rem;
    color: var(--color-text-muted);
    line-height: 1.5;
}

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

.research-grid {
    display: grid;
    gap: var(--space-lg);
}

@media (min-width: 640px) {
    .research-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .research-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.research-card {
    display: block;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    overflow: hidden;
    transition: all var(--transition-base);
    text-decoration: none;
}

.research-card:hover {
    border-color: var(--color-primary);
    transform: translateY(-6px);
    box-shadow: var(--shadow-xl), var(--shadow-glow);
}

.research-image {
    aspect-ratio: 16/10;
    overflow: hidden;
    background: var(--color-bg-tertiary);
}

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

.research-card:hover .research-image img {
    transform: scale(1.05);
}

.research-content {
    padding: var(--space-lg);
}

.research-category {
    display: inline-block;
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-accent);
    margin-bottom: var(--space-sm);
}

.research-title {
    font-family: var(--font-display);
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: var(--space-sm);
    line-height: 1.3;
}

.research-description {
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    line-height: 1.6;
}

/* Featured Publication */
.research-featured {
    display: flex;
    flex-direction: column;
    overflow: hidden;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.1) 0%, rgba(139, 92, 246, 0.05) 100%),
                var(--color-surface);
    border: 1px solid var(--color-primary);
    border-radius: var(--radius-xl);
    margin-bottom: var(--space-2xl);
    text-decoration: none;
    transition: all var(--transition-base);
    position: relative;
}

.research-featured:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl), 0 0 40px rgba(99, 102, 241, 0.15);
}

.research-featured-image {
    width: 100%;
    overflow: hidden;
    background: white;
}

.research-featured-image img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    display: block;
    padding: var(--space-lg);
    transition: transform var(--transition-slow);
}

.research-featured:hover .research-featured-image img {
    transform: scale(1.03);
}

.research-featured-body {
    padding: var(--space-2xl);
    flex: 1;
}

.research-featured-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    color: var(--color-primary);
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--space-md);
}

.research-featured-title {
    font-family: var(--font-display);
    font-size: clamp(1.25rem, 3vw, 1.75rem);
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: var(--space-md);
    line-height: 1.3;
}

.research-featured-authors {
    font-size: 0.875rem;
    color: var(--color-text-muted);
    margin-bottom: var(--space-md);
    line-height: 1.6;
}

.research-featured-authors strong {
    color: var(--color-primary-light);
}

.research-featured-description {
    font-size: 1rem;
    color: var(--color-text-secondary);
    line-height: 1.7;
    margin-bottom: var(--space-lg);
}

.research-featured-venues {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm);
}

.research-featured-venues span {
    padding: var(--space-xs) var(--space-md);
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    color: var(--color-text-secondary);
}

.research-featured-arrow {
    position: absolute;
    top: var(--space-2xl);
    right: var(--space-2xl);
    color: var(--color-primary);
    opacity: 0;
    transform: translateX(-8px);
    transition: all var(--transition-base);
}

.research-featured:hover .research-featured-arrow {
    opacity: 1;
    transform: translateX(0);
}

@media (min-width: 768px) {
    .research-featured {
        flex-direction: row;
    }

    .research-featured-image {
        width: 45%;
        flex-shrink: 0;
    }
}

.research-cta {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--space-md);
    margin-top: var(--space-2xl);
}

/* ===================================================================
   WRITING SECTION
   =================================================================== */
.writing {
    background: var(--color-bg);
}

.writing-grid {
    display: grid;
    gap: var(--space-lg);
}

@media (min-width: 768px) {
    .writing-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.writing-card {
    display: block;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    padding: var(--space-xl);
    transition: all var(--transition-base);
    text-decoration: none;
    color: inherit;
}

.writing-card:hover {
    border-color: var(--color-primary);
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.writing-card--featured {
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.1) 0%, transparent 100%),
                var(--color-surface);
}

.writing-icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-bg);
    border-radius: var(--radius-lg);
    color: var(--color-primary);
    margin-bottom: var(--space-lg);
}

.writing-type {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-primary);
    margin-bottom: var(--space-sm);
}

.writing-title {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: var(--space-md);
}

.writing-description {
    font-size: 0.9375rem;
    color: var(--color-text-secondary);
    line-height: 1.7;
    margin-bottom: var(--space-lg);
}

.writing-meta {
    display: flex;
    gap: var(--space-lg);
    font-size: 0.75rem;
    color: var(--color-text-muted);
}

.writing-cta {
    text-align: center;
    margin-top: var(--space-2xl);
}

/* ===================================================================
   CONTACT SECTION
   =================================================================== */
.contact {
    background: linear-gradient(135deg, rgba(10, 10, 11, 0.95) 0%, rgba(10, 10, 11, 0.9) 100%),
                url('../images/assets-website/9.jpg') center center / cover no-repeat;
}

.contact-wrapper {
    display: grid;
    gap: var(--space-3xl);
    align-items: center;
}

@media (min-width: 1024px) {
    .contact-wrapper {
        grid-template-columns: 1fr 1fr;
    }
}

.contact-title {
    font-family: var(--font-display);
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 600;
    margin: var(--space-md) 0 var(--space-lg);
}

.contact-description {
    font-size: 1.125rem;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-2xl);
}

.contact-links {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.contact-link {
    display: flex;
    align-items: center;
    gap: var(--space-lg);
    padding: var(--space-lg);
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    transition: all var(--transition-base);
}

.contact-link:hover {
    border-color: var(--color-primary);
    transform: translateX(8px);
}

.contact-link-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-bg);
    border-radius: var(--radius-lg);
    color: var(--color-primary);
    flex-shrink: 0;
}

.contact-link-text {
    flex: 1;
}

.contact-link-label {
    display: block;
    font-weight: 600;
    margin-bottom: var(--space-xs);
}

.contact-link-value {
    font-size: 0.875rem;
    color: var(--color-text-muted);
}

.contact-link-arrow {
    color: var(--color-text-muted);
    transition: all var(--transition-base);
}

.contact-link:hover .contact-link-arrow {
    color: var(--color-primary);
    transform: translate(4px, -4px);
}

/* Contact Card */
.contact-visual {
    display: none;
}

@media (min-width: 1024px) {
    .contact-visual {
        display: block;
    }
}

.contact-card {
    position: relative;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-2xl);
    padding: var(--space-3xl);
    overflow: hidden;
}

.contact-card-pattern {
    position: absolute;
    inset: 0;
    background-image:
        radial-gradient(circle at 20% 80%, rgba(99, 102, 241, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(139, 92, 246, 0.15) 0%, transparent 50%);
}

.contact-card-content {
    position: relative;
    text-align: center;
}

.contact-quote {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-style: italic;
    color: var(--color-text);
    margin-bottom: var(--space-2xl);
    line-height: 1.5;
}

.contact-resume {
    display: flex;
    justify-content: center;
}

/* ===================================================================
   FOOTER
   =================================================================== */
.footer {
    background: var(--color-bg);
    border-top: 1px solid var(--color-border);
    padding: var(--space-3xl) 0 var(--space-xl);
}

.footer-content {
    display: grid;
    gap: var(--space-2xl);
    margin-bottom: var(--space-2xl);
}

@media (min-width: 768px) {
    .footer-content {
        grid-template-columns: 1fr auto auto;
        align-items: center;
    }
}

.footer-logo {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
}

.footer-tagline {
    font-size: 0.875rem;
    color: var(--color-text-muted);
    margin-top: var(--space-sm);
}

.footer-links {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-lg);
}

.footer-links a {
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    transition: color var(--transition-fast);
}

.footer-links a:hover {
    color: var(--color-text);
}

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

.footer-social a {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    color: var(--color-text-secondary);
    transition: all var(--transition-base);
}

.footer-social a:hover {
    background: var(--color-primary);
    border-color: var(--color-primary);
    color: white;
}

.footer-bottom {
    text-align: center;
    padding-top: var(--space-xl);
    border-top: 1px solid var(--color-border);
}

.footer-bottom p {
    font-size: 0.875rem;
    color: var(--color-text-muted);
}

/* ===================================================================
   ANIMATIONS
   =================================================================== */
.animate-fade-up {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
    transition-delay: var(--delay, 0s);
}

.animate-fade-up.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }

    html {
        scroll-behavior: auto;
    }

    .animate-fade-up {
        opacity: 1;
        transform: none;
    }
}

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

/* Loading state */
.loading {
    position: fixed;
    inset: 0;
    background: var(--color-bg);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    transition: opacity 0.5s ease;
}

.loading.hidden {
    opacity: 0;
    pointer-events: none;
}