/* ============================================
   DESIGN TOKENS - 8px Grid System
   ============================================ */
:root {
    --space-1: 8px;
    --space-2: 16px;
    --space-3: 24px;
    --space-4: 32px;
    --space-5: 40px;
    --space-6: 48px;
    --space-7: 56px;
    --space-8: 64px;
    --space-9: 72px;
    --space-10: 80px;
    --space-12: 96px;
    --space-16: 128px;
    
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 300ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 500ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-spring: 500ms cubic-bezier(0.34, 1.56, 0.64, 1);
    
    --text-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
    --text-sm: clamp(0.875rem, 0.8rem + 0.35vw, 1rem);
    --text-base: clamp(1rem, 0.9rem + 0.5vw, 1.125rem);
    --text-lg: clamp(1.125rem, 1rem + 0.6vw, 1.375rem);
    --text-xl: clamp(1.25rem, 1.1rem + 0.75vw, 1.625rem);
    --text-2xl: clamp(1.5rem, 1.2rem + 1.5vw, 2.25rem);
    --text-3xl: clamp(1.875rem, 1.5rem + 1.875vw, 3rem);
    --text-4xl: clamp(2.25rem, 1.75rem + 2.5vw, 4rem);
    --text-5xl: clamp(3rem, 2rem + 5vw, 5.5rem);
    
    --font-family: 'Fira Code', monospace;
    --font-weight-regular: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
    
    --max-width: 1280px;
    --nav-height: 72px;
}

/* ============================================
   TOKYO NIGHT - DARK THEME
   ============================================ */
[data-theme="dark"] {
    --bg-primary: #1a1b26;
    --bg-secondary: #16161e;
    --bg-tertiary: #24283b;
    --bg-elevated: #292e42;
    
    --surface-glass: rgba(36, 40, 59, 0.6);
    --surface-glass-hover: rgba(36, 40, 59, 0.85);
    --surface-glass-border: rgba(65, 72, 112, 0.4);
    --surface-glass-border-hover: rgba(122, 162, 247, 0.6);
    
    --text-primary: #c0caf5;
    --text-secondary: #a9b1d6;
    --text-tertiary: #9aa5ce;
    --text-muted: #565f89;
    
    --accent-blue: #7aa2f7;
    --accent-purple: #bb9af7;
    --accent-green: #9ece6a;
    --accent-yellow: #e0af68;
    --accent-orange: #ff9e64;
    --accent-red: #f7768e;
    --accent-cyan: #7dcfff;
    --accent-teal: #73daca;
    
    --gradient-primary: linear-gradient(135deg, #7aa2f7 0%, #bb9af7 100%);
    --gradient-accent: linear-gradient(135deg, #7dcfff 0%, #7aa2f7 100%);
    --gradient-hero: radial-gradient(ellipse at top, rgba(122, 162, 247, 0.08) 0%, transparent 60%);
    
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 40px rgba(122, 162, 247, 0.15);
    
    --code-bg: #1e2030;
    --border-color: rgba(65, 72, 112, 0.3);
    
    --toggle-bg: #24283b;
    --toggle-knob: #7aa2f7;
}

/* ============================================
   TOKYO NIGHT - LIGHT THEME
   ============================================ */
[data-theme="light"] {
    --bg-primary: #d5d6db;
    --bg-secondary: #c2c3c8;
    --bg-tertiary: #cbccd1;
    --bg-elevated: #e8e9ed;
    
    --surface-glass: rgba(255, 255, 255, 0.7);
    --surface-glass-hover: rgba(255, 255, 255, 0.9);
    --surface-glass-border: rgba(52, 59, 88, 0.2);
    --surface-glass-border-hover: rgba(52, 89, 186, 0.5);
    
    --text-primary: #343b58;
    --text-secondary: #4c5672;
    --text-tertiary: #616677;
    --text-muted: #9699a3;
    
    --accent-blue: #34548a;
    --accent-purple: #5a4a7e;
    --accent-green: #33635c;
    --accent-yellow: #8f5e15;
    --accent-orange: #965032;
    --accent-red: #8c4351;
    --accent-cyan: #0f4b6e;
    --accent-teal: #166775;
    
    --gradient-primary: linear-gradient(135deg, #34548a 0%, #5a4a7e 100%);
    --gradient-accent: linear-gradient(135deg, #0f4b6e 0%, #34548a 100%);
    --gradient-hero: radial-gradient(ellipse at top, rgba(52, 84, 138, 0.08) 0%, transparent 60%);
    
    --shadow-sm: 0 1px 2px rgba(52, 59, 88, 0.08);
    --shadow-md: 0 4px 12px rgba(52, 59, 88, 0.12);
    --shadow-lg: 0 8px 32px rgba(52, 59, 88, 0.16);
    --shadow-glow: 0 0 40px rgba(52, 84, 138, 0.1);
    
    --code-bg: #c2c3c8;
    --border-color: rgba(52, 59, 88, 0.15);
    
    --toggle-bg: #e8e9ed;
    --toggle-knob: #34548a;
}

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

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-family);
    font-size: var(--text-base);
    font-weight: var(--font-weight-regular);
    line-height: 1.7;
    color: var(--text-primary);
    background-color: var(--bg-primary);
    overflow-x: hidden;
    transition: background-color var(--transition-slow), color var(--transition-slow);
}

::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--bg-secondary); }
::-webkit-scrollbar-thumb { background: var(--accent-blue); border-radius: var(--radius-sm); }

::selection { background: var(--accent-blue); color: var(--bg-primary); }

a {
    color: var(--accent-blue);
    text-decoration: none;
    transition: color var(--transition-fast);
}
a:hover { color: var(--accent-purple); }

/* ============================================
   LUCIDE ICON SYSTEM
   ============================================ */
[data-icon] {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    color: currentColor;
    transition: all var(--transition-base);
}
[data-icon] svg {
    width: 100%;
    height: 100%;
    stroke-width: 1.5;
}

/* Icon Size Variants */
[data-icon-size="xs"] { width: 12px; height: 12px; }
[data-icon-size="sm"] { width: 16px; height: 16px; }
[data-icon-size="md"] { width: 20px; height: 20px; }
[data-icon-size="lg"] { width: 24px; height: 24px; }
[data-icon-size="xl"] { width: 28px; height: 28px; }
[data-icon-size="2xl"] { width: 32px; height: 32px; }
[data-icon-size="3xl"] { width: 40px; height: 40px; }

/* ============================================
   BACKGROUND EFFECTS
   ============================================ */
.bg-gradient {
    position: fixed;
    top: 0; left: 0;
    width: 100%; height: 100%;
    background: var(--gradient-hero);
    pointer-events: none;
    z-index: -1;
}

.bg-grid {
    position: fixed;
    top: 0; left: 0;
    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: 64px 64px;
    opacity: 0.3;
    pointer-events: none;
    z-index: -1;
}

/* ============================================
   NAVIGATION
   ============================================ */
.nav {
    position: fixed;
    top: 0; left: 0; right: 0;
    height: var(--nav-height);
    background: var(--surface-glass);
    -webkit-backdrop-filter: blur(20px);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--surface-glass-border);
    z-index: 1000;
    transition: all var(--transition-base);
}

.nav.scrolled {
    background: var(--surface-glass-hover);
    box-shadow: var(--shadow-md);
}

.nav-container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--space-4);
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    font-size: var(--text-xl);
    font-weight: var(--font-weight-bold);
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: var(--space-1);
}
.nav-logo [data-icon] {
    width: 28px;
    height: 28px;
    color: var(--accent-blue);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: var(--space-5);
    list-style: none;
}

.nav-links a {
    font-size: var(--text-sm);
    font-weight: var(--font-weight-medium);
    color: var(--text-secondary);
    position: relative;
    padding: var(--space-1) 0;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0; left: 0;
    width: 0; height: 2px;
    background: var(--gradient-primary);
    border-radius: 1px;
    transition: width var(--transition-base);
}
.nav-links a:hover { color: var(--text-primary); }
.nav-links a:hover::after { width: 100%; }

.nav-actions {
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

/* Theme Toggle */
.theme-toggle {
    position: relative;
    width: 96px;
    height: 40px;
    background: var(--toggle-bg);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    cursor: pointer;
    display: flex;
    align-items: center;
    padding: var(--space-1);
    overflow: hidden;
    transition: all var(--transition-base);
}
.theme-toggle:hover {
    border-color: var(--accent-blue);
    box-shadow: var(--shadow-glow);
}

.theme-toggle-knob {
    position: absolute;
    width: 28px;
    height: 28px;
    background: var(--toggle-knob);
    border-radius: 50%;
    transition: all var(--transition-spring);
    display: flex;
    align-items: center;
    justify-content: center;
}
.theme-toggle-knob [data-icon] {
    width: 14px;
    height: 14px;
    color: #fff;
}
.theme-toggle-knob [data-icon] svg { stroke-width: 2; }

[data-theme="dark"] .theme-toggle-knob { left: var(--space-1); }
[data-theme="light"] .theme-toggle-knob { left: calc(100% - 28px - var(--space-1)); }
[data-theme="auto"] .theme-toggle-knob { left: 50%; transform: translateX(-50%); }

.theme-toggle-options {
    display: flex;
    width: 100%;
    justify-content: space-between;
    padding: 0 var(--space-1);
    pointer-events: none;
}
.theme-toggle-options [data-icon] {
    width: 14px;
    height: 14px;
    opacity: 0.4;
    transition: opacity var(--transition-fast);
    color: var(--text-tertiary);
}
[data-theme="dark"] .theme-toggle-options .dark-icon,
[data-theme="light"] .theme-toggle-options .light-icon,
[data-theme="auto"] .theme-toggle-options .auto-icon { opacity: 0; }

/* Mobile Toggle */
.mobile-toggle {
    display: none;
    width: 40px;
    height: 40px;
    background: var(--surface-glass);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    cursor: pointer;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 5px;
}
.mobile-toggle span {
    display: block;
    width: 18px;
    height: 2px;
    background: var(--text-primary);
    border-radius: 1px;
    transition: all var(--transition-base);
}
.mobile-toggle.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.mobile-toggle.active span:nth-child(2) { opacity: 0; transform: translateX(-10px); }
.mobile-toggle.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* Mobile Menu */
.mobile-menu {
    display: none;
    position: fixed;
    top: var(--nav-height);
    left: 0; right: 0;
    background: var(--surface-glass-hover);
    -webkit-backdrop-filter: blur(24px);
    backdrop-filter: blur(24px);
    border-bottom: 1px solid var(--surface-glass-border);
    padding: var(--space-4);
    transform: translateY(-100%);
    opacity: 0;
    transition: all var(--transition-base);
    z-index: 999;
}
.mobile-menu.active { transform: translateY(0); opacity: 1; }

.mobile-menu-links {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--space-1);
}

.mobile-menu-links li {
    opacity: 0;
    transform: translateY(-16px);
    transition: all var(--transition-base);
}
.mobile-menu.active .mobile-menu-links li { opacity: 1; transform: translateY(0); }
.mobile-menu-links li:nth-child(1) { transition-delay: 50ms; }
.mobile-menu-links li:nth-child(2) { transition-delay: 100ms; }
.mobile-menu-links li:nth-child(3) { transition-delay: 150ms; }
.mobile-menu-links li:nth-child(4) { transition-delay: 200ms; }
.mobile-menu-links li:nth-child(5) { transition-delay: 250ms; }
.mobile-menu-links li:nth-child(6) { transition-delay: 300ms; }

.mobile-menu-links a {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-3);
    font-size: var(--text-lg);
    font-weight: var(--font-weight-medium);
    color: var(--text-secondary);
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}
.mobile-menu-links a [data-icon] {
    width: 24px;
    height: 24px;
    color: var(--accent-blue);
}
.mobile-menu-links a:hover { background: var(--bg-tertiary); color: var(--text-primary); }
.mobile-menu-links a:hover [data-icon] { color: var(--accent-purple); }

/* ============================================
   HERO SECTION
   ============================================ */
.hero {
    min-height: 80vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: calc(var(--nav-height) + var(--space-8)) var(--space-4) var(--space-8);
}

.hero-content {
    max-width: var(--max-width);
    width: 100%;
    text-align: center;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-1);
    padding: var(--space-1) var(--space-2);
    background: var(--surface-glass);
    border: 1px solid var(--surface-glass-border);
    border-radius: 999px;
    font-size: var(--text-xs);
    color: var(--accent-green);
    margin-bottom: var(--space-4);
    backdrop-filter: blur(8px);
}
.hero-badge [data-icon] {
    width: 14px;
    height: 14px;
    color: var(--accent-green);
}

.hero-title {
    font-size: var(--text-5xl);
    font-weight: var(--font-weight-bold);
    line-height: 1.1;
    margin-bottom: var(--space-3);
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: var(--text-xl);
    color: var(--text-secondary);
    margin-bottom: var(--space-2);
}

.hero-tagline {
    font-size: var(--text-lg);
    color: var(--text-tertiary);
    max-width: 640px;
    margin: 0 auto var(--space-6);
    line-height: 1.8;
}
.hero-tagline .highlight { color: var(--accent-cyan); }

.hero-cta {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    flex-wrap: wrap;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-1);
    padding: var(--space-2) var(--space-4);
    font-family: var(--font-family);
    font-size: var(--text-sm);
    font-weight: var(--font-weight-semibold);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-base);
    border: none;
    text-decoration: none;
}
.btn [data-icon] {
    width: 16px;
    height: 16px;
}
.btn [data-icon] svg { stroke-width: 2; }

.btn-primary {
    background: var(--gradient-primary);
    color: #1a1b26;
    box-shadow: var(--shadow-md), 0 0 20px rgba(122, 162, 247, 0.3);
}
.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg), 0 0 40px rgba(122, 162, 247, 0.4);
    color: #1a1b26;
}
.btn-secondary {
    background: var(--surface-glass);
    color: var(--text-primary);
    border: 1px solid var(--surface-glass-border);
    backdrop-filter: blur(8px);
}
.btn-secondary:hover {
    border-color: var(--accent-purple);
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow);
    color: var(--text-primary);
}

/* ============================================
   SECTION STYLES
   ============================================ */
.section {
    padding: var(--space-12) var(--space-4);
    max-width: var(--max-width);
    margin: 0 auto;
}
.section-header { margin-bottom: var(--space-8); }
.section-label {
    font-size: var(--text-xs);
    font-weight: var(--font-weight-semibold);
    color: var(--accent-blue);
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: var(--space-2);
    display: flex;
    align-items: center;
    gap: var(--space-1);
}
.section-label [data-icon] {
    width: 16px;
    height: 16px;
}
.section-label [data-icon] svg { stroke-width: 2; }

.section-title {
    font-size: var(--text-3xl);
    font-weight: var(--font-weight-bold);
    color: var(--text-primary);
    margin-bottom: var(--space-2);
}
.section-description {
    font-size: var(--text-base);
    color: var(--text-tertiary);
    max-width: 560px;
}

/* ============================================
   GLASS CARDS
   ============================================ */
.glass-card {
    background: var(--surface-glass);
    -webkit-backdrop-filter: blur(16px);
    backdrop-filter: blur(16px);
    border: 1px solid var(--surface-glass-border);
    border-radius: var(--radius-lg);
    padding: var(--space-4);
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}
.glass-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background: radial-gradient(circle at var(--mouse-x, 50%) var(--mouse-y, 50%), 
        rgba(122, 162, 247, 0.1) 0%, transparent 60%);
    opacity: 0;
    transition: opacity var(--transition-base);
    pointer-events: none;
}
.glass-card:hover {
    background: var(--surface-glass-hover);
    border-color: var(--surface-glass-border-hover);
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg), var(--shadow-glow);
}
.glass-card:hover::before { opacity: 1; }

/* ============================================
   ABOUT GRID
   ============================================ */
.about-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--space-3);
}
.about-card-icon {
    width: 48px; height: 48px;
    background: var(--gradient-primary);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--space-2);
    transition: all var(--transition-base);
}
.about-card-icon [data-icon] {
    width: 28px;
    height: 28px;
    color: #1a1b26;
}
.about-card-icon [data-icon] svg { stroke-width: 2; }

.glass-card:hover .about-card-icon {
    transform: scale(1.05) rotate(3deg);
    box-shadow: 0 0 20px rgba(122, 162, 247, 0.4);
}
.about-card-title {
    font-size: var(--text-lg);
    font-weight: var(--font-weight-bold);
    color: var(--text-primary);
    margin-bottom: var(--space-1);
}
.about-card-description {
    font-size: var(--text-sm);
    color: var(--text-tertiary);
    line-height: 1.6;
}

/* ============================================
   SKILLS SECTION
   ============================================ */
.skills-container {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-3);
}
.skill-category { padding: var(--space-4); }
.skill-category-title {
    font-size: var(--text-sm);
    font-weight: var(--font-weight-bold);
    color: var(--accent-cyan);
    margin-bottom: var(--space-3);
    display: flex;
    align-items: center;
    gap: var(--space-1);
}
.skill-category-title [data-icon] {
    width: 20px;
    height: 20px;
    color: var(--accent-cyan);
}
.skill-category-title [data-icon] svg { stroke-width: 2; }
.skill-category-title::before { content: '//'; color: var(--text-muted); margin-right: var(--space-1); }

.skill-tags { display: flex; flex-wrap: wrap; gap: var(--space-1); }
.skill-tag {
    padding: 4px var(--space-2);
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    font-size: var(--text-xs);
    color: var(--text-secondary);
    transition: all var(--transition-fast);
    cursor: default;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}
.skill-tag [data-icon] {
    width: 12px;
    height: 12px;
    color: var(--text-muted);
}
.skill-tag [data-icon] svg { stroke-width: 2; }

.skill-tag:hover {
    border-color: var(--accent-blue);
    color: var(--accent-blue);
    transform: scale(1.05);
    box-shadow: 0 0 12px rgba(122, 162, 247, 0.2);
}
.skill-tag:hover [data-icon] { color: var(--accent-blue); }

/* ============================================
   TECH STACK
   ============================================ */
.tech-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
    gap: var(--space-2);
}
.tech-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-1);
    padding: var(--space-3) var(--space-2);
    text-align: center;
    transition: all var(--transition-base);
    border-radius: var(--radius-md);
}
.tech-item:hover {
    background: var(--bg-tertiary);
}
.tech-item-icon {
    width: 40px; height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent-blue);
    transition: all var(--transition-base);
}
.tech-item-icon [data-icon] {
    width: 28px;
    height: 28px;
}
.tech-item:hover .tech-item-icon {
    transform: scale(1.2) rotate(5deg);
    color: var(--accent-purple);
}
.tech-item-name {
    font-size: var(--text-xs);
    color: var(--text-secondary);
    font-weight: var(--font-weight-medium);
}

/* ============================================
   PROJECTS
   ============================================ */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--space-3);
}
.project-card { padding: var(--space-5); }
.project-card-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    margin-bottom: var(--space-3);
}
.project-card-icon {
    width: 48px; height: 48px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-base);
}
.project-card-icon [data-icon] {
    width: 28px;
    height: 28px;
    color: var(--accent-blue);
}
.project-card:hover .project-card-icon {
    background: var(--gradient-primary);
    border-color: transparent;
    transform: scale(1.05);
}
.project-card:hover .project-card-icon [data-icon] {
    color: #1a1b26;
}
.project-card:hover .project-card-icon [data-icon] svg { stroke-width: 2; }

.project-card-links { display: flex; gap: var(--space-1); }
.project-card-links a {
    width: 32px; height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    color: var(--text-muted);
    transition: all var(--transition-fast);
}
.project-card-links a [data-icon] {
    width: 20px;
    height: 20px;
}
.project-card-links a:hover { color: var(--accent-blue); background: var(--bg-tertiary); }

.project-card-title {
    font-size: var(--text-lg);
    font-weight: var(--font-weight-bold);
    color: var(--text-primary);
    margin-bottom: var(--space-1);
}
.project-card-description {
    font-size: var(--text-sm);
    color: var(--text-tertiary);
    margin-bottom: var(--space-3);
    line-height: 1.6;
}
.project-card-stack { display: flex; flex-wrap: wrap; gap: var(--space-1); }
.project-card-stack span {
    font-size: 0.7rem;
    color: var(--accent-cyan);
    padding: 2px var(--space-1);
    background: rgba(125, 207, 255, 0.08);
    border-radius: 4px;
    display: inline-flex;
    align-items: center;
    gap: 4px;
}
.project-card-stack span [data-icon] {
    width: 10px;
    height: 10px;
    color: var(--accent-cyan);
}
.project-card-stack span [data-icon] svg { stroke-width: 2; }

/* ============================================
   EXCELLENCY
   ============================================ */
.excellency-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--space-2);
}
.excellency-item {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-3);
}
.excellency-item [data-icon] {
    width: 28px;
    height: 28px;
    color: var(--accent-blue);
    flex-shrink: 0;
    transition: all var(--transition-base);
}
.excellency-item:hover [data-icon] {
    color: var(--accent-purple);
    transform: scale(1.1);
}
.excellency-item .text {
    font-size: var(--text-sm);
    color: var(--text-secondary);
    font-weight: var(--font-weight-medium);
}

/* ============================================
   CONTACT
   ============================================ */
.contact-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-4);
    align-items: start;
}
.contact-info { display: flex; flex-direction: column; gap: var(--space-3); }
.contact-item {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-3);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}
.contact-item:hover { background: var(--bg-tertiary); }
.contact-item-icon {
    width: 40px; height: 40px;
    background: var(--surface-glass);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: all var(--transition-base);
}
.contact-item-icon [data-icon] {
    width: 24px;
    height: 24px;
    color: var(--accent-blue);
}
.contact-item:hover .contact-item-icon {
    background: var(--gradient-primary);
    border-color: transparent;
}
.contact-item:hover .contact-item-icon [data-icon] {
    color: #1a1b26;
}
.contact-item:hover .contact-item-icon [data-icon] svg { stroke-width: 2; }

.contact-item-content { display: flex; flex-direction: column; }
.contact-item-label { font-size: var(--text-xs); color: var(--text-muted); }
.contact-item-value {
    font-size: var(--text-sm);
    color: var(--text-primary);
    font-weight: var(--font-weight-medium);
}
.contact-form {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}
.form-group { display: flex; flex-direction: column; gap: var(--space-1); }
.form-label {
    font-size: var(--text-xs);
    color: var(--text-muted);
    font-weight: var(--font-weight-medium);
    display: flex;
    align-items: center;
    gap: var(--space-1);
}
.form-label [data-icon] {
    width: 12px;
    height: 12px;
    color: var(--accent-blue);
}
.form-label [data-icon] svg { stroke-width: 2; }

.form-input, .form-textarea {
    padding: var(--space-2);
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    font-family: var(--font-family);
    font-size: var(--text-sm);
    color: var(--text-primary);
    transition: all var(--transition-fast);
    outline: none;
}
.form-input:focus, .form-textarea:focus {
    border-color: var(--accent-blue);
    box-shadow: 0 0 0 3px rgba(122, 162, 247, 0.1);
}
.form-textarea { min-height: 120px; resize: vertical; }

/* ============================================
   FOOTER
   ============================================ */
.footer {
    border-top: 1px solid var(--border-color);
    padding: var(--space-6) var(--space-4);
    text-align: center;
}
.footer-content {
    max-width: var(--max-width);
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-3);
}
.footer-text {
    font-size: var(--text-sm);
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: var(--space-1);
}
.footer-text [data-icon="heart"] {
    width: 16px;
    height: 16px;
    color: var(--accent-red);
}
.footer-text [data-icon="heart"] svg {
    fill: var(--accent-red);
    stroke-width: 0;
}
.footer-text .highlight { color: var(--accent-blue); }
.footer-links { display: flex; gap: var(--space-3); align-items: center; }
.footer-links a {
    font-size: var(--text-sm);
    color: var(--text-tertiary);
    display: inline-flex;
    align-items: center;
    gap: 6px;
}
.footer-links a [data-icon] {
    width: 16px;
    height: 16px;
}
.footer-links a [data-icon] svg { stroke-width: 2; }

.footer-links a:hover { color: var(--accent-blue); }
.footer-links a:hover [data-icon] { color: var(--accent-blue); }

/* ============================================
   ANIMATIONS
   ============================================ */
.fade-in {
    opacity: 0;
    transform: translateY(24px);
    transition: all var(--transition-slow);
}
.fade-in.visible { opacity: 1; transform: translateY(0); }
.stagger-1 { transition-delay: 100ms; }
.stagger-2 { transition-delay: 200ms; }
.stagger-3 { transition-delay: 300ms; }
.stagger-4 { transition-delay: 400ms; }
.stagger-5 { transition-delay: 500ms; }
.stagger-6 { transition-delay: 600ms; }

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 1024px) {
    .skills-container { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
    .nav-links { display: none; }
    .mobile-toggle { display: flex; }
    .mobile-menu { display: block; }
    .skills-container { grid-template-columns: 1fr; }
    .projects-grid { grid-template-columns: 1fr; }
    .hero-title { font-size: var(--text-4xl); }
    .theme-toggle { width: 80px; height: 36px; }
    .section { padding: var(--space-8) var(--space-3); }
}
@media (max-width: 480px) {
    .hero-cta { flex-direction: column; width: 100%; }
    .btn { width: 100%; justify-content: center; }
    .tech-grid { grid-template-columns: repeat(3, 1fr); }
}