/* ================================================
   FATIH EREN ÇETIN - PERSONAL PORTFOLIO
   Design System & Styles
   ================================================ */

/* ------------------------------------------------
   CSS VARIABLES - DESIGN TOKENS
   ------------------------------------------------ */
:root {
    /* Colors - Blue Gradient Theme */
    --bg-primary: #0a0a0f;
    --bg-secondary: #12121a;
    --bg-tertiary: #1a1a25;

    --accent-primary: #3b82f6;
    --accent-secondary: #1e40af;
    --accent-light: #60a5fa;
    --accent-glow: rgba(59, 130, 246, 0.3);
    --accent-glow-strong: rgba(59, 130, 246, 0.5);

    --spotify-green: #1DB954;
    --spotify-glow: rgba(29, 185, 84, 0.3);

    --text-primary: #ffffff;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;

    /* Glassmorphism */
    --glass-bg: rgba(255, 255, 255, 0.05);
    --glass-bg-hover: rgba(255, 255, 255, 0.08);
    --glass-border: rgba(255, 255, 255, 0.1);
    --glass-border-hover: rgba(255, 255, 255, 0.2);

    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 2rem;
    --font-size-4xl: 2.5rem;
    --font-size-5xl: 3.5rem;
    --font-size-6xl: 4.5rem;

    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;

    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-2xl: 32px;

    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.2);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.4);
    --shadow-glow: 0 0 30px var(--accent-glow);

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 300ms ease;
    --transition-slow: 500ms ease;
    --transition-bounce: 400ms cubic-bezier(0.68, -0.55, 0.265, 1.55);

    /* Z-Index Scale */
    --z-background: -1;
    --z-base: 1;
    --z-cards: 10;
    --z-navbar: 100;
    --z-modal: 1000;
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-family);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    min-height: 100vh;
}

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

ul,
ol {
    list-style: none;
}

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

/* ------------------------------------------------
   3D BACKGROUND CANVAS
   ------------------------------------------------ */
#bg-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: var(--z-background);
    pointer-events: none;
}

/* ------------------------------------------------
   NAVBAR
   ------------------------------------------------ */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: var(--z-navbar);
    padding: var(--spacing-md) var(--spacing-xl);
    background: rgba(10, 10, 15, 0.8);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--glass-border);
    transition: var(--transition-base);
}

.navbar.scrolled {
    background: rgba(10, 10, 15, 0.95);
    backdrop-filter: blur(30px);
}

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

.nav-logo {
    font-size: var(--font-size-2xl);
    font-weight: 800;
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -0.02em;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: var(--spacing-xl);
}

.nav-link {
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--text-secondary);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-sm);
    transition: var(--transition-fast);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--accent-primary), var(--accent-light));
    transition: var(--transition-base);
}

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

.nav-link:hover::after,
.nav-link.active::after {
    width: 80%;
}

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

.nav-toggle {
    display: none;
    color: var(--text-primary);
    font-size: var(--font-size-xl);
    padding: var(--spacing-sm);
}

/* Mobile Navigation */
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        background: rgba(10, 10, 15, 0.98);
        backdrop-filter: blur(20px);
        flex-direction: column;
        padding: var(--spacing-xl);
        gap: var(--spacing-md);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: var(--transition-base);
        border-bottom: 1px solid var(--glass-border);
    }

    .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }

    .nav-toggle {
        display: block;
    }
}

/* ------------------------------------------------
   HERO SECTION
   ------------------------------------------------ */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-3xl) var(--spacing-xl);
    position: relative;
}

.hero-content {
    text-align: center;
    z-index: var(--z-base);
}

.hero-title {
    font-size: clamp(var(--font-size-4xl), 8vw, var(--font-size-6xl));
    font-weight: 800;
    letter-spacing: -0.03em;
    margin-bottom: var(--spacing-md);
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--accent-light) 50%, var(--accent-primary) 100%);
    background-size: 200% 200%;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: gradientShift 5s ease infinite;
}

.hero-subtitle {
    font-size: clamp(var(--font-size-lg), 3vw, var(--font-size-2xl));
    font-weight: 400;
    color: var(--text-secondary);
    letter-spacing: 0.05em;
}

@keyframes gradientShift {

    0%,
    100% {
        background-position: 0% 50%;
    }

    50% {
        background-position: 100% 50%;
    }
}

/* ------------------------------------------------
   BENTO GRID SECTION
   ------------------------------------------------ */
.bento-section {
    padding: var(--spacing-2xl) var(--spacing-xl);
    max-width: 1400px;
    margin: 0 auto;
}

.bento-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    grid-auto-rows: minmax(180px, auto);
    gap: var(--spacing-lg);
}

/* ------------------------------------------------
   BENTO CARDS - BASE STYLES
   ------------------------------------------------ */
.bento-card {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    cursor: pointer;
    position: relative;
    overflow: hidden;
    transition: transform var(--transition-base),
        box-shadow var(--transition-base),
        border-color var(--transition-base),
        background var(--transition-base);
    display: flex;
    flex-direction: column;
}

.bento-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 50% 0%, var(--accent-glow), transparent 70%);
    opacity: 0;
    transition: opacity var(--transition-base);
    pointer-events: none;
}

.bento-card:hover {
    transform: translateY(-8px);
    background: var(--glass-bg-hover);
    border-color: var(--glass-border-hover);
    box-shadow: var(--shadow-lg), var(--shadow-glow);
}

.bento-card:hover::before {
    opacity: 1;
}

.card-icon {
    font-size: var(--font-size-3xl);
    margin-bottom: var(--spacing-md);
    color: var(--accent-primary);
}

.card-title {
    font-size: var(--font-size-xl);
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}

.card-preview {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    line-height: 1.5;
}

/* Card Scrollable Content */
.card-scrollable {
    flex: 1;
    overflow-y: auto;
    padding-right: var(--spacing-sm);
    scrollbar-width: thin;
    scrollbar-color: var(--accent-secondary) transparent;
}

.card-scrollable::-webkit-scrollbar {
    width: 4px;
}

.card-scrollable::-webkit-scrollbar-track {
    background: transparent;
}

.card-scrollable::-webkit-scrollbar-thumb {
    background: var(--accent-secondary);
    border-radius: 2px;
}

/* ------------------------------------------------
   CARD SIZE VARIATIONS
   ------------------------------------------------ */
/* Large 2x2 - About Me */
.card-about {
    grid-column: span 2;
    grid-row: span 2;
}

/* Medium 2x1 - AI/ML Projects & Skills */
.card-ai,
.card-skills {
    grid-column: span 2;
    grid-row: span 1;
}

/* Medium 1x2 - Data Science & Blog */
.card-data,
.card-blog {
    grid-column: span 1;
    grid-row: span 2;
}

/* Small 1x1 - DIY, GitHub, Spotify, Social, Contact */
.card-diy,
.card-github,
.card-spotify,
.card-social,
.card-contact {
    grid-column: span 1;
    grid-row: span 1;
}

/* ------------------------------------------------
   SPOTIFY CARD - GREEN THEME
   ------------------------------------------------ */
.card-spotify {
    --accent-primary: var(--spotify-green);
    --accent-glow: var(--spotify-glow);
}

.card-spotify .card-icon {
    color: var(--spotify-green);
}

.card-spotify:hover {
    box-shadow: var(--shadow-lg), 0 0 30px var(--spotify-glow);
}

.card-spotify::before {
    background: radial-gradient(circle at 50% 0%, var(--spotify-glow), transparent 70%);
}

/* ------------------------------------------------
   CONTACT CARD - NO EXPAND
   ------------------------------------------------ */
.card-contact {
    text-decoration: none;
}

/* ------------------------------------------------
   FOOTER
   ------------------------------------------------ */
.footer {
    margin-top: var(--spacing-3xl);
    padding: var(--spacing-2xl) var(--spacing-xl);
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    border-top: 1px solid var(--glass-border);
}

.footer-content {
    max-width: 1400px;
    margin: 0 auto;
    text-align: center;
    color: var(--text-muted);
    font-size: var(--font-size-sm);
    min-height: 40px;
}

/* ------------------------------------------------
   MODAL - EXPANDED CARDS
   ------------------------------------------------ */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(10px);
    z-index: var(--z-modal);
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-base), visibility var(--transition-base);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-xl);
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal-content {
    background: var(--bg-secondary);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-2xl);
    width: 100%;
    max-width: 800px;
    max-height: 85vh;
    position: relative;
    transform: scale(0.9);
    opacity: 0;
    transition: transform 400ms cubic-bezier(0.34, 1.56, 0.64, 1), opacity var(--transition-base);
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.modal-overlay.active .modal-content {
    transform: scale(1);
    opacity: 1;
}

.modal-close {
    position: absolute;
    top: var(--spacing-lg);
    right: var(--spacing-lg);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    color: var(--text-primary);
    font-size: var(--font-size-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-fast);
    z-index: 10;
}

.modal-close:hover {
    background: rgba(239, 68, 68, 0.2);
    border-color: #ef4444;
    color: #ef4444;
}

.modal-close.scroll-hide {
    opacity: 0;
    pointer-events: none;
}

.modal-body {
    padding: var(--spacing-2xl);
    overflow-y: auto;
    flex: 1;
    scrollbar-width: thin;
    scrollbar-color: var(--accent-secondary) transparent;
}

.modal-body::-webkit-scrollbar {
    width: 6px;
}

.modal-body::-webkit-scrollbar-track {
    background: transparent;
}

.modal-body::-webkit-scrollbar-thumb {
    background: var(--accent-secondary);
    border-radius: 3px;
}

/* Modal Header */
.modal-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
    padding-bottom: var(--spacing-lg);
    border-bottom: 1px solid var(--glass-border);
}

.modal-header .card-icon {
    font-size: var(--font-size-3xl);
}

.modal-header h2 {
    font-size: var(--font-size-2xl);
    font-weight: 700;
}

/* ------------------------------------------------
   EXPANDED CARD CONTENT STYLES
   ------------------------------------------------ */

/* Section Titles */
.section-title {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--accent-light);
    margin-bottom: var(--spacing-md);
    margin-top: var(--spacing-xl);
}

.section-title:first-of-type {
    margin-top: 0;
}

.section-title i {
    font-size: var(--font-size-base);
}

/* Bio Text */
.bio-text {
    font-size: var(--font-size-base);
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: var(--spacing-lg);
}

/* Item Lists */
.item-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.item-list li {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
}

.item-list li::before {
    content: '•';
    color: var(--accent-primary);
    font-weight: bold;
}

/* Project Cards (Inside Modal) */
.project-card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
    transition: var(--transition-fast);
    cursor: pointer;
    display: block;
    text-decoration: none;
}

.project-card:hover {
    background: var(--glass-bg-hover);
    border-color: var(--accent-primary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.project-card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-sm);
}

.project-card-title {
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.project-card-title i {
    color: var(--accent-primary);
}

.project-card-arrow {
    color: var(--text-muted);
    transition: var(--transition-fast);
}

.project-card:hover .project-card-arrow {
    color: var(--accent-primary);
    transform: translateX(4px);
}

.project-card-desc {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    line-height: 1.5;
}

/* Skill Cards */
.skill-card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
    transition: var(--transition-fast);
}

.skill-card:hover {
    background: var(--glass-bg-hover);
    border-color: var(--accent-primary);
}

.skill-card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-sm);
}

.skill-card-title {
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.skill-card-title i {
    color: var(--accent-primary);
}

.skill-card-link {
    color: var(--accent-primary);
    font-size: var(--font-size-sm);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    transition: var(--transition-fast);
}

.skill-card-link:hover {
    color: var(--accent-light);
}

.skill-card-desc {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    line-height: 1.5;
}

/* Blog Items */
.blog-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md) var(--spacing-lg);
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-sm);
    text-decoration: none;
    transition: var(--transition-fast);
}

.blog-item:hover {
    background: var(--glass-bg-hover);
    border-color: var(--accent-primary);
}

.blog-item-title {
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--text-primary);
}

.blog-item-arrow {
    color: var(--text-muted);
    transition: var(--transition-fast);
}

.blog-item:hover .blog-item-arrow {
    color: var(--accent-primary);
    transform: translateX(4px);
}

/* Social Grid */
.social-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
}

.social-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-lg);
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    text-decoration: none;
    transition: var(--transition-fast);
}

.social-item:hover {
    background: var(--glass-bg-hover);
    border-color: var(--accent-primary);
    transform: translateY(-2px);
}

.social-item i {
    font-size: var(--font-size-2xl);
    color: var(--accent-primary);
}

.social-item span {
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--text-primary);
}

/* GitHub Stats */
.github-stats {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
    align-items: center;
}

.github-stats img {
    max-width: 100%;
    border-radius: var(--radius-md);
}

/* Spotify Playlist Cards - Green Theme */
.spotify-content {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.spotify-content .project-card {
    border-color: var(--spotify-green);
}

.spotify-content .project-card:hover {
    border-color: var(--spotify-green);
    box-shadow: 0 4px 16px var(--spotify-glow);
}

.spotify-content .project-card-title i {
    color: var(--spotify-green);
}

.spotify-content .project-card-arrow {
    color: var(--spotify-green);
    transition: filter 0.2s ease, transform 0.2s ease;
}

.spotify-content .project-card:hover .project-card-arrow {
    color: var(--spotify-green) !important;
    filter: drop-shadow(0 0 4px var(--spotify-green)) drop-shadow(0 0 8px var(--spotify-glow));
    transform: translateX(3px);
}

/* Spotify Modal - Green branding */
.modal-body:has(.spotify-content) .modal-header .card-icon i {
    color: var(--spotify-green) !important;
}

.modal-content:has(.spotify-content) {
    border: 2px solid var(--spotify-green);
    box-shadow: 0 8px 32px var(--spotify-glow);
}

/* ------------------------------------------------
   GITHUB MODAL - STATS DISPLAY
   ------------------------------------------------ */
.github-modal-content {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
}

.github-stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-md);
}

.github-stat-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: var(--spacing-lg);
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    transition: var(--transition-fast);
}

.github-stat-card:hover {
    border-color: var(--accent-primary);
    transform: translateY(-3px);
}

.github-stat-card i {
    font-size: var(--font-size-2xl);
    color: var(--accent-primary);
    margin-bottom: var(--spacing-sm);
}

.github-stat-card .stat-value {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--text-primary);
}

.github-stat-card .stat-label {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

.github-languages {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
}

.github-section-title {
    color: var(--text-primary);
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-md);
}

.github-section-title i {
    color: var(--accent-primary);
    margin-right: var(--spacing-sm);
}

.language-bars {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.language-item {
    display: grid;
    grid-template-columns: 80px 1fr 50px;
    align-items: center;
    gap: var(--spacing-md);
}

.lang-name {
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
}

.lang-bar {
    height: 8px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 4px;
    overflow: hidden;
}

.lang-fill {
    height: 100%;
    border-radius: 4px;
    transition: width 0.6s ease;
}

.lang-percent {
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
    text-align: right;
}

.github-profile-link {
    margin-top: var(--spacing-md);
}

.loading-text {
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
    text-align: center;
    padding: var(--spacing-md);
}

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

/* ------------------------------------------------
   SCROLL REVEAL ANIMATION
   ------------------------------------------------ */
.bento-card {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.bento-card.revealed {
    opacity: 1;
    transform: translateY(0);
}

/* ------------------------------------------------
   RESPONSIVE DESIGN
   ------------------------------------------------ */
@media (max-width: 1200px) {
    .bento-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .card-about {
        grid-column: span 2;
    }
}

@media (max-width: 900px) {
    .bento-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .card-about,
    .card-ai,
    .card-skills {
        grid-column: span 2;
    }

    .card-data,
    .card-diy {
        grid-column: span 1;
        grid-row: span 1;
    }
}

@media (max-width: 600px) {
    .bento-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }

    .bento-card {
        grid-column: span 1 !important;
        grid-row: span 1 !important;
    }

    .hero-title {
        font-size: var(--font-size-4xl);
    }

    .modal-content {
        max-height: 90vh;
        border-radius: var(--radius-xl);
    }

    .modal-body {
        padding: var(--spacing-lg);
    }

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

/* ------------------------------------------------
   UTILITY CLASSES
   ------------------------------------------------ */
.text-gradient {
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    border: 0;
}

/* ------------------------------------------------
   ICON HOVER GLOW EFFECTS (Reduced)
   ------------------------------------------------ */
/* Individual icon hover - subtle white glow */
.bento-card .card-icon i {
    transition: filter var(--transition-base), transform var(--transition-base);
}

.bento-card:hover .card-icon i {
    filter: drop-shadow(0 0 4px rgba(255, 255, 255, 0.4));
}

/* Spotify icon - lighter green glow on hover (reduced) */
.card-spotify:hover .card-icon i {
    filter: drop-shadow(0 0 6px rgba(30, 215, 96, 0.5)) drop-shadow(0 0 12px rgba(30, 215, 96, 0.3));
}

/* ------------------------------------------------
   CARD HEADER ROW - INLINE LAYOUT
   ------------------------------------------------ */
.card-header-row {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.card-header-row .card-icon {
    margin-bottom: 0;
    font-size: var(--font-size-2xl);
}

.card-header-row .card-title {
    margin-bottom: 0;
}

/* ------------------------------------------------
   INLINE LISTS AND ICONS
   ------------------------------------------------ */
.inline-list {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    margin-top: 0;
}

.inline-list li {
    padding: 0;
}

.inline-icons {
    margin-top: 0;
}

.inline-graph {
    margin-top: 0;
}

.inline-preview {
    margin-top: 0;
}

/* ------------------------------------------------
   CLICKABLE ELEMENTS
   ------------------------------------------------ */
/* Project links in AI/ML card */
.project-link {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-xs) var(--spacing-sm);
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    font-size: var(--font-size-xs);
    text-decoration: none;
    transition: var(--transition-fast);
}

.project-link:hover {
    background: var(--glass-bg-hover);
    border-color: var(--accent-primary);
    color: var(--text-primary);
    transform: translateY(-2px);
}

.project-link i {
    color: var(--accent-primary);
    font-size: 10px;
}

/* Clickable Kaggle Badge */
.kaggle-badge.clickable {
    text-decoration: none;
    cursor: pointer;
    transition: var(--transition-fast);
}

.kaggle-badge.clickable:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(32, 190, 255, 0.4);
}

/* Clickable DIY/Skills Icons - Individual hover */
.clickable-icon {
    text-decoration: none;
    cursor: pointer;
}

.clickable-icon:hover {
    border-color: var(--accent-primary);
    background: var(--glass-bg-hover);
    transform: translateY(-3px);
    box-shadow: 0 4px 12px var(--accent-glow);
}

.clickable-icon:hover i,
.clickable-icon:hover svg {
    filter: drop-shadow(0 0 2px rgba(255, 255, 255, 0.2));
}

/* Contact icon - subtle glow like other icons */
.contact-icon {
    transition: var(--transition-fast);
}

.card-contact:hover .contact-icon i {
    filter: drop-shadow(0 0 2px rgba(255, 255, 255, 0.2));
}

/* Blog latest link */
.blog-latest-link {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
    text-decoration: none;
    transition: var(--transition-fast);
}

.blog-latest-link:hover {
    background: var(--glass-bg-hover);
    border-color: var(--accent-primary);
    color: var(--text-primary);
    transform: translateY(-2px);
}

.blog-latest-link i {
    color: var(--accent-primary);
}

/* Social icon links - Individual hover */
.social-icons-row {
    display: flex;
    gap: var(--spacing-md);
    align-items: center;
    justify-content: center;
    flex: 1;
}

.card-social {
    display: flex;
    flex-direction: column;
    align-items: stretch;
}

.card-social .social-icons-row {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
}

.social-icon-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 56px;
    height: 56px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    color: var(--accent-primary);
    font-size: var(--font-size-2xl);
    text-decoration: none;
    transition: var(--transition-fast);
}

.social-icon-link:hover {
    background: var(--glass-bg-hover);
    border-color: var(--accent-primary);
    transform: translateY(-3px);
    box-shadow: 0 4px 12px var(--accent-glow);
}

.social-icon-link:hover i {
    filter: drop-shadow(0 0 2px rgba(255, 255, 255, 0.2));
}

/* ------------------------------------------------
   ABOUT ME CARD - COLLAPSED CONTENT
   ------------------------------------------------ */
.card-about-content {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    flex: 1;
}

.about-top-row {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
}

.about-top-row .card-title {
    font-size: var(--font-size-2xl);
    margin: 0;
}

.about-photo {
    width: 130px;
    height: 130px;
    border-radius: 50%;
    overflow: hidden;
    border: 3px solid var(--accent-primary);
    flex-shrink: 0;
    box-shadow: 0 0 20px var(--accent-glow);
}

.about-photo img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.card-about-content .card-preview {
    font-size: var(--font-size-base);
    line-height: 1.7;
    color: var(--text-secondary);
}

.card-expand-hint {
    position: absolute;
    bottom: var(--spacing-lg);
    right: var(--spacing-lg);
    color: var(--text-muted);
    font-size: var(--font-size-sm);
    opacity: 0;
    transition: opacity var(--transition-base);
}

.card-about:hover .card-expand-hint {
    opacity: 1;
}

/* ------------------------------------------------
   AI/ML CARD - PROJECT LIST
   ------------------------------------------------ */
.card-project-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-sm);
}

.card-project-list li {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    padding: var(--spacing-xs) 0;
}

.card-project-list li i {
    color: var(--accent-primary);
    font-size: var(--font-size-xs);
    width: 16px;
}

/* ------------------------------------------------
   DATA SCIENCE CARD - KAGGLE & STATS
   ------------------------------------------------ */
.kaggle-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    background: linear-gradient(135deg, #20beff, #1e88e5);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-md);
    font-size: var(--font-size-xs);
    font-weight: 600;
    margin-top: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.kaggle-badge i {
    font-size: var(--font-size-sm);
}

.data-stats {
    display: flex;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
}

.stat-item {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.stat-number {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--accent-light);
}

.stat-label {
    font-size: var(--font-size-xs);
    color: var(--text-muted);
}

.mini-chart {
    margin-top: auto;
}

.chart-svg {
    width: 100%;
    height: 40px;
    color: var(--accent-primary);
}

/* ------------------------------------------------
   DIY CARD - GALLERY
   ------------------------------------------------ */
.diy-gallery {
    display: flex;
    gap: var(--spacing-sm);
    margin: var(--spacing-md) 0;
}

/* DIY Modal - Icon Grid Layout */
.diy-modal-grid {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-lg);
    justify-content: center;
    padding: var(--spacing-md) 0;
}

.diy-modal-icon {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: var(--spacing-lg);
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    text-decoration: none;
    transition: var(--transition-fast);
    width: 140px;
}

.diy-modal-icon:hover {
    background: var(--glass-bg-hover);
    border-color: var(--accent-primary);
    transform: translateY(-4px);
}

.diy-modal-icon i {
    font-size: 2.5rem;
    color: var(--accent-primary);
    margin-bottom: var(--spacing-sm);
}

.diy-modal-label {
    font-weight: 600;
    font-size: var(--font-size-base);
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.diy-modal-desc {
    font-size: var(--font-size-xs);
    color: var(--text-secondary);
    line-height: 1.4;
}

.diy-thumb {
    width: 60px;
    height: 75px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 4px;
    font-size: var(--font-size-xl);
    color: var(--accent-primary);
    transition: var(--transition-fast);
    flex-shrink: 0;
}

.diy-thumb .icon-label {
    font-size: 9px;
    color: var(--text-secondary);
    text-align: center;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 100%;
}

/* Individual hover handled by .clickable-icon class */

/* ------------------------------------------------
   SKILLS CARD - TECH ICONS
   ------------------------------------------------ */
.tech-icons {
    display: flex;
    gap: 8px;
    margin-top: var(--spacing-sm);
}

.tech-icon {
    width: 55px;
    height: 70px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 4px;
    font-size: var(--font-size-xl);
    color: var(--accent-primary);
    transition: var(--transition-fast);
    flex-shrink: 0;
}

.tech-icon svg {
    width: 24px;
    height: 24px;
}

.tech-icon .icon-label {
    font-size: 9px;
    color: var(--text-secondary);
    text-align: center;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 100%;
}

/* Individual hover handled by .clickable-icon class */

/* ------------------------------------------------
   BLOG CARD - VERTICAL SCROLL
   ------------------------------------------------ */
.blog-scroll-container {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
    max-height: 120px;
    overflow-y: auto;
    padding-right: var(--spacing-xs);
}

.blog-scroll-container::-webkit-scrollbar {
    width: 4px;
}

.blog-scroll-container::-webkit-scrollbar-track {
    background: var(--glass-bg);
    border-radius: 2px;
}

.blog-scroll-container::-webkit-scrollbar-thumb {
    background: var(--accent-primary);
    border-radius: 2px;
}

/* Data Science card - full height scroll for 1x2 cards */
.data-scroll-full {
    flex: 1;
    max-height: none;
}

.blog-latest {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    margin-top: var(--spacing-sm);
}

.blog-latest i {
    color: var(--accent-primary);
}

/* ------------------------------------------------
   GITHUB CARD - LATEST PROJECT
   ------------------------------------------------ */
.github-latest-project {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    text-decoration: none;
    color: var(--text-primary);
    transition: var(--transition-fast);
    margin-top: var(--spacing-sm);
}

.github-latest-project:hover {
    background: var(--glass-bg-hover);
    border-color: var(--accent-primary);
    transform: translateY(-2px);
}

.github-latest-project i {
    font-size: var(--font-size-lg);
    color: var(--accent-primary);
}

.github-latest-project .project-info {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.github-latest-project .project-name {
    font-weight: 600;
    font-size: var(--font-size-sm);
    color: var(--text-primary);
}

.github-latest-project .project-desc {
    font-size: var(--font-size-xs);
    color: var(--text-secondary);
}

/* ------------------------------------------------
   SPOTIFY CARD - PREVIEW
   ------------------------------------------------ */
.spotify-preview {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-top: var(--spacing-sm);
    padding: var(--spacing-sm);
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    text-decoration: none;
    transition: var(--transition-fast);
}

.spotify-preview:hover {
    background: var(--glass-bg-hover);
    border-color: var(--accent-primary);
    transform: translateY(-2px);
}

.playlist-cover {
    width: 50px;
    height: 50px;
    border-radius: var(--radius-md);
    overflow: hidden;
    flex-shrink: 0;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--glass-bg);
}

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

.playlist-name {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

/* Spotify Card - Green branding */
.card-spotify .card-icon i {
    color: #1DB954;
}

.card-spotify:hover {
    border-color: #1DB954;
}

.card-spotify:hover::before {
    background: radial-gradient(circle at top, rgba(29, 185, 84, 0.15), transparent 70%);
}

/* Spotify, GitHub, DIY cards - center content */
.card-spotify,
.card-github {
    display: flex;
    flex-direction: column;
}

.card-spotify .spotify-preview,
.card-github .github-latest-project {
    margin: auto;
}

.card-diy {
    display: flex;
    flex-direction: column;
}

.diy-icons-row {
    display: flex;
    gap: var(--spacing-md);
    align-items: center;
    justify-content: center;
    flex: 1;
}

.diy-icon-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 56px;
    height: 56px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    color: var(--accent-primary);
    font-size: var(--font-size-2xl);
    text-decoration: none;
    transition: var(--transition-fast);
}

.diy-icon-link:hover {
    background: var(--glass-bg-hover);
    border-color: var(--accent-primary);
    transform: translateY(-3px);
    box-shadow: 0 4px 12px var(--accent-glow);
}

/* ------------------------------------------------
   SOCIAL CARD - ICONS (Deprecated grid style)
   ------------------------------------------------ */
/* Kept for backwards compatibility but social-icons-row is preferred */
.social-icons-grid {
    display: flex;
    gap: var(--spacing-md);
    margin-top: var(--spacing-md);
}

.social-icons-grid i {
    font-size: var(--font-size-xl);
    color: var(--accent-primary);
    transition: var(--transition-fast);
}

/* ------------------------------------------------
   CONTACT CARD - CENTERED ICON
   ------------------------------------------------ */
.card-contact {
    display: flex;
    align-items: center;
    justify-content: center;
}

.contact-icon {
    font-size: var(--font-size-4xl);
    margin: 0;
}

.contact-icon i {
    transition: var(--transition-base);
}

.card-contact:hover .contact-icon i {
    filter: drop-shadow(0 0 2px rgba(255, 255, 255, 0.2));
    transform: scale(1.05);
}

/* ------------------------------------------------
   RESPONSIVE ADJUSTMENTS FOR NEW CONTENT
   ------------------------------------------------ */
@media (max-width: 900px) {
    .card-about-content {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }

    .about-photo {
        width: 100px;
        height: 100px;
    }
}

@media (max-width: 600px) {
    .tech-icons {
        justify-content: flex-start;
    }

    .diy-gallery {
        justify-content: flex-start;
    }

    .data-stats {
        justify-content: center;
    }
}

/* ------------------------------------------------
   HORIZONTAL SCROLL CONTAINER
   ------------------------------------------------ */
.scroll-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0;
    position: relative;
    width: 100%;
}

.scroll-content {
    display: flex;
    justify-content: flex-start;
    gap: var(--spacing-sm);
    overflow-x: auto;
    scroll-behavior: smooth;
    scrollbar-width: none;
    /* Firefox */
    -ms-overflow-style: none;
    /* IE/Edge */
    flex: 1;
    padding: var(--spacing-xs) var(--spacing-xs);
}

.scroll-content::-webkit-scrollbar {
    display: none;
    /* Chrome/Safari */
}

.scroll-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    min-width: 28px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 50%;
    color: var(--text-secondary);
    font-size: var(--font-size-xs);
    cursor: pointer;
    transition: var(--transition-fast);
    z-index: 5;
}

.scroll-btn:hover {
    background: var(--glass-bg-hover);
    border-color: var(--accent-primary);
    color: var(--text-primary);
}

.scroll-btn:active {
    transform: scale(0.95);
}

/* DIY Gallery - exactly 2 icons, centered, no cut-off */
.card-diy .scroll-container {
    justify-content: space-between;
}

.diy-gallery.scroll-content {
    margin: var(--spacing-md) 0;
    gap: 16px;
    justify-content: flex-start;
    width: 136px;
    min-width: 136px;
    max-width: 136px;
    overflow: hidden;
    scroll-snap-type: x mandatory;
    flex: 0 0 136px;
}

.diy-gallery .diy-thumb {
    scroll-snap-align: start;
    flex-shrink: 0;
}

/* Tech Icons - centered with scroll, buttons at edges */
.card-skills .scroll-container {
    justify-content: space-between;
}

.tech-icons.scroll-content {
    margin-top: var(--spacing-sm);
    gap: 12px;
    justify-content: center;
}