/* ============================================
   Design System — Shahab Ahmed Portfolio
   ============================================ */
:root {
    /* Color Palette */
    --bg-primary: #0a0a0f;
    --bg-secondary: #111118;
    --bg-tertiary: #1a1a25;
    --bg-card: rgba(255, 255, 255, 0.03);
    --bg-card-hover: rgba(255, 255, 255, 0.06);
    --glass-bg: rgba(255, 255, 255, 0.04);
    --glass-border: rgba(255, 255, 255, 0.08);

    --text-primary: #f0f0f5;
    --text-secondary: #a0a0b8;
    --text-muted: #6b6b80;

    --accent-1: #6366f1; /* Indigo */
    --accent-2: #8b5cf6; /* Violet */
    --accent-3: #06b6d4; /* Cyan */
    --accent-4: #a855f7; /* Purple */

    --gradient-primary: linear-gradient(135deg, #6366f1, #8b5cf6, #06b6d4);
    --gradient-card: linear-gradient(135deg, rgba(99, 102, 241, 0.1), rgba(6, 182, 212, 0.05));
    --gradient-glow: radial-gradient(600px circle at var(--mouse-x, 50%) var(--mouse-y, 50%), rgba(99, 102, 241, 0.06), transparent 40%);

    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 8px 32px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 16px 64px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 40px rgba(99, 102, 241, 0.15);

    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 24px;
    --radius-xl: 32px;

    --font-main: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

    --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-smooth: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-spring: 0.6s cubic-bezier(0.34, 1.56, 0.64, 1);

    --space-xs: clamp(0.5rem, 1.5vw, 0.75rem);
    --space-sm: clamp(0.75rem, 2vw, 1rem);
    --space-md: clamp(1rem, 2.5vw, 1.5rem);
    --space-lg: clamp(1.5rem, 4vw, 2.5rem);
    --space-xl: clamp(2rem, 5vw, 4rem);
    --nav-height: 72px;
    --container-pad: clamp(1rem, 4vw, 2.5rem);
    --section-pad: clamp(4rem, 10vw, 7.5rem);
    --touch-min: 44px;
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: var(--nav-height);
    font-size: clamp(15px, 1.6vw, 16px);
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-main);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.7;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    -webkit-tap-highlight-color: transparent;
    padding-left: env(safe-area-inset-left);
    padding-right: env(safe-area-inset-right);
}

body.nav-open {
    overflow: hidden;
    touch-action: none;
}

.skip-link {
    position: absolute;
    top: -100%;
    left: var(--container-pad);
    z-index: 10001;
    padding: 12px 20px;
    background: var(--accent-1);
    color: #fff;
    font-weight: 600;
    border-radius: var(--radius-sm);
    transition: top 0.2s;
}

.skip-link:focus {
    top: 12px;
    outline: 2px solid var(--accent-3);
    outline-offset: 2px;
}

.scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    height: 3px;
    width: 0;
    background: var(--gradient-primary);
    z-index: 10001;
    transition: width 0.1s linear;
    box-shadow: 0 0 12px rgba(99, 102, 241, 0.5);
}

.back-to-top {
    position: fixed;
    bottom: calc(24px + env(safe-area-inset-bottom));
    right: calc(24px + env(safe-area-inset-right));
    width: var(--touch-min);
    height: var(--touch-min);
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 50%;
    color: var(--text-primary);
    cursor: pointer;
    z-index: 999;
    opacity: 0;
    visibility: hidden;
    transform: translateY(16px);
    transition: opacity 0.3s, visibility 0.3s, transform 0.3s, background 0.2s, border-color 0.2s;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}

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

.back-to-top:hover {
    background: rgba(99, 102, 241, 0.15);
    border-color: rgba(99, 102, 241, 0.4);
    color: var(--accent-1);
}

.back-to-top:focus-visible {
    outline: 2px solid var(--accent-1);
    outline-offset: 3px;
}

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

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

::selection {
    background: rgba(99, 102, 241, 0.3);
    color: #fff;
}

.container {
    width: min(calc(100% - var(--container-pad) * 2), 1200px);
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--container-pad);
}

/* ============================================
   Particle Canvas
   ============================================ */
#particles-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    pointer-events: none;
}

/* ============================================
   Custom Cursor
   ============================================ */
.cursor-dot {
    width: 8px;
    height: 8px;
    background: var(--accent-1);
    border-radius: 50%;
    position: fixed;
    top: 0;
    left: 0;
    pointer-events: none;
    z-index: 10000;
    transform: translate(-50%, -50%);
    transition: width 0.3s, height 0.3s, background 0.3s;
    mix-blend-mode: difference;
}

.cursor-outline {
    width: 36px;
    height: 36px;
    border: 2px solid rgba(99, 102, 241, 0.4);
    border-radius: 50%;
    position: fixed;
    top: 0;
    left: 0;
    pointer-events: none;
    z-index: 9999;
    transform: translate(-50%, -50%);
    transition: width 0.4s, height 0.4s, border-color 0.4s;
}

.cursor-dot.hover {
    width: 48px;
    height: 48px;
    background: rgba(99, 102, 241, 0.15);
}

.cursor-outline.hover {
    width: 64px;
    height: 64px;
    border-color: rgba(99, 102, 241, 0.2);
}

/* ============================================
   Navigation
   ============================================ */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: max(16px, env(safe-area-inset-top)) var(--container-pad) 16px;
    min-height: var(--nav-height);
    transition: var(--transition-smooth);
    backdrop-filter: blur(0px);
    -webkit-backdrop-filter: blur(0px);
}

.navbar.scrolled {
    padding-top: max(12px, env(safe-area-inset-top));
    padding-bottom: 12px;
    background: rgba(10, 10, 15, 0.88);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--glass-border);
}

.nav-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    z-index: 998;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.35s, visibility 0.35s;
}

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

.nav-logo {
    font-size: 1.5rem;
    font-weight: 800;
    letter-spacing: -0.5px;
    color: var(--text-primary);
    transition: var(--transition-fast);
}

.logo-bracket {
    color: var(--accent-1);
    font-family: var(--font-mono);
}

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

.nav-links {
    display: flex;
    gap: 8px;
}

.nav-link {
    position: relative;
    padding: 10px 20px;
    min-height: var(--touch-min);
    display: inline-flex;
    align-items: center;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-secondary);
    border-radius: var(--radius-sm);
    transition: var(--transition-fast);
    overflow: hidden;
}

.nav-link:focus-visible,
.btn:focus-visible,
.project-link:focus-visible,
.footer-links a:focus-visible,
.contact-card:focus-visible {
    outline: 2px solid var(--accent-1);
    outline-offset: 3px;
}

.nav-link::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--gradient-primary);
    opacity: 0;
    border-radius: inherit;
    transition: opacity 0.3s;
}

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

.nav-link:hover::before {
    opacity: 0.1;
}

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

.nav-link.active::before {
    opacity: 0.15;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 10px;
    min-width: var(--touch-min);
    min-height: var(--touch-min);
    z-index: 1001;
    border-radius: var(--radius-sm);
}

.nav-toggle:focus-visible {
    outline: 2px solid var(--accent-1);
    outline-offset: 2px;
}

.nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: var(--transition-smooth);
    transform-origin: center;
}

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

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

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

/* ============================================
   Hero Section
   ============================================ */
.hero {
    min-height: 100vh;
    min-height: 100dvh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    position: relative;
    z-index: 1;
    overflow: hidden;
    padding-bottom: env(safe-area-inset-bottom);
}

.hero::before {
    content: '';
    position: absolute;
    top: -200px;
    right: -200px;
    width: 600px;
    height: 600px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(99, 102, 241, 0.08), transparent 60%);
    pointer-events: none;
    animation: floatGlow 8s ease-in-out infinite;
}

.hero::after {
    content: '';
    position: absolute;
    bottom: -150px;
    left: -100px;
    width: 500px;
    height: 500px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(6, 182, 212, 0.06), transparent 60%);
    pointer-events: none;
    animation: floatGlow 10s ease-in-out infinite reverse;
}

@keyframes floatGlow {
    0%, 100% { transform: translate(0, 0) scale(1); }
    33% { transform: translate(30px, -20px) scale(1.05); }
    66% { transform: translate(-20px, 15px) scale(0.95); }
}

.hero-content {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: clamp(2rem, 5vw, 3.75rem);
    align-items: center;
    width: min(calc(100% - var(--container-pad) * 2), 1200px);
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--container-pad);
    padding-top: calc(var(--nav-height) + 2rem);
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 8px 18px;
    background: rgba(99, 102, 241, 0.1);
    border: 1px solid rgba(99, 102, 241, 0.2);
    border-radius: 50px;
    font-size: 0.85rem;
    color: var(--accent-1);
    font-weight: 500;
    margin-bottom: 24px;
}

.badge-dot {
    width: 8px;
    height: 8px;
    background: #22c55e;
    border-radius: 50%;
    animation: pulse-dot 2s ease-in-out infinite;
}

@keyframes pulse-dot {
    0%, 100% { opacity: 1; box-shadow: 0 0 0 0 rgba(34, 197, 94, 0.4); }
    50% { opacity: 0.8; box-shadow: 0 0 0 8px rgba(34, 197, 94, 0); }
}

.hero-greeting {
    display: block;
    font-size: 1.3rem;
    font-weight: 400;
    color: var(--text-secondary);
    margin-bottom: 8px;
    letter-spacing: 0.5px;
}

.hero-name {
    display: block;
    font-size: clamp(2.8rem, 5vw, 4.5rem);
    font-weight: 900;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1.1;
}

.name-letter {
    display: inline-block;
    animation: waveLetter 2s ease-in-out infinite;
    animation-delay: calc(var(--i) * 0.05s);
    background: inherit;
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

@keyframes waveLetter {
    0%, 100% { transform: translateY(0); }
    20% { transform: translateY(-4px); }
}

.name-space {
    display: inline-block;
    width: 0.3em;
}

.hero-title {
    margin-bottom: 16px;
}

.hero-role {
    display: flex;
    align-items: center;
    font-family: var(--font-mono);
    font-size: 1.1rem;
    color: var(--accent-3);
    margin-bottom: 20px;
    min-height: 1.8em;
}

.typing-cursor {
    animation: blink 1s step-end infinite;
    margin-left: 2px;
    font-weight: 300;
    color: var(--accent-1);
}

@keyframes blink {
    50% { opacity: 0; }
}

.hero-description {
    font-size: 1.05rem;
    color: var(--text-secondary);
    line-height: 1.8;
    max-width: 560px;
    margin-bottom: 28px;
}

.hero-description strong {
    color: var(--text-primary);
}

.hero-stats {
    display: flex;
    align-items: center;
    gap: 28px;
    margin-bottom: 36px;
    padding: 20px 28px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    backdrop-filter: blur(10px);
    width: fit-content;
}

.stat {
    text-align: center;
}

.stat-number {
    font-size: 2rem;
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
}

.stat-plus {
    font-size: 1.3rem;
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    display: block;
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-top: 4px;
}

.stat-divider {
    width: 1px;
    height: 40px;
    background: var(--glass-border);
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 28px;
    font-size: 0.95rem;
    font-weight: 600;
    border-radius: var(--radius-md);
    transition: all var(--transition-smooth);
    cursor: pointer;
    border: none;
    position: relative;
    overflow: hidden;
    font-family: var(--font-main);
}

.btn-primary {
    background: var(--gradient-primary);
    color: #fff;
    box-shadow: 0 4px 20px rgba(99, 102, 241, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(99, 102, 241, 0.4);
}

.btn-primary::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(255,255,255,0.2), transparent);
    opacity: 0;
    transition: opacity 0.3s;
}

.btn-primary:hover::after {
    opacity: 1;
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
    border: 1px solid var(--glass-border);
    backdrop-filter: blur(10px);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(99, 102, 241, 0.3);
    transform: translateY(-2px);
}

.btn-ghost {
    color: var(--text-secondary);
    padding: 14px 20px;
}

.btn-ghost:hover {
    color: var(--accent-1);
    transform: translateX(4px);
}

/* Hero Visual / Profile */
.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.profile-container {
    position: relative;
    width: clamp(200px, 38vw, 340px);
    height: clamp(200px, 38vw, 340px);
    margin-inline: auto;
}

.profile-ring {
    position: absolute;
    inset: -15px;
    border-radius: 50%;
    border: 2px solid transparent;
    border-top-color: var(--accent-1);
    border-right-color: var(--accent-2);
    animation: spin 8s linear infinite;
}

.ring-2 {
    inset: -30px;
    border-top-color: var(--accent-3);
    border-right-color: transparent;
    border-left-color: var(--accent-4);
    animation-direction: reverse;
    animation-duration: 12s;
    opacity: 0.5;
}

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

.profile-image-wrapper {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    overflow: hidden;
    border: 3px solid var(--glass-border);
    position: relative;
    z-index: 2;
    box-shadow: var(--shadow-glow);
}

.profile-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s ease;
}

.profile-image-wrapper:hover .profile-image {
    transform: scale(1.05);
}

.floating-badge {
    position: absolute;
    z-index: 3;
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 16px;
    background: rgba(17, 17, 24, 0.9);
    border: 1px solid var(--glass-border);
    border-radius: 50px;
    font-size: 0.8rem;
    font-weight: 500;
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-md);
    animation: floatBadge 4s ease-in-out infinite;
    white-space: nowrap;
}

.badge-1 {
    top: 20px;
    right: -20px;
    animation-delay: 0s;
}

.badge-2 {
    bottom: 40px;
    left: -30px;
    animation-delay: 1.3s;
}

.badge-3 {
    bottom: -10px;
    right: 20px;
    animation-delay: 2.6s;
}

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

/* Scroll Indicator */
.scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    color: var(--text-muted);
    font-size: 0.75rem;
    letter-spacing: 2px;
    text-transform: uppercase;
    animation: fadeInUp 1s 2s both;
}

.scroll-line {
    width: 1px;
    height: 50px;
    background: var(--glass-border);
    position: relative;
    overflow: hidden;
}

.scroll-dot {
    width: 3px;
    height: 12px;
    background: var(--accent-1);
    border-radius: 3px;
    position: absolute;
    left: -1px;
    animation: scrollDown 2s ease-in-out infinite;
}

@keyframes scrollDown {
    0% { top: 0; opacity: 0; }
    30% { opacity: 1; }
    100% { top: 100%; opacity: 0; }
}

/* ============================================
   Sections
   ============================================ */
.section {
    padding: var(--section-pad) 0;
    position: relative;
    z-index: 1;
    content-visibility: auto;
    contain-intrinsic-size: auto 600px;
}

.section-header {
    text-align: center;
    margin-bottom: 64px;
}

.section-tag {
    display: inline-block;
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--accent-1);
    letter-spacing: 2px;
    text-transform: uppercase;
    margin-bottom: 16px;
}

.section-title {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 800;
    letter-spacing: -1px;
    margin-bottom: 16px;
}

.section-subtitle {
    font-size: 1.05rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.7;
}

/* ============================================
   About Section
   ============================================ */
.about-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.glass-card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    backdrop-filter: blur(10px);
    transition: all var(--transition-smooth);
    position: relative;
    overflow: hidden;
}

.glass-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--gradient-glow);
    opacity: 0;
    transition: opacity 0.5s;
    pointer-events: none;
}

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

.glass-card:hover {
    border-color: rgba(99, 102, 241, 0.2);
    transform: translateY(-4px);
    box-shadow: var(--shadow-glow);
}

.about-card {
    padding: 36px;
}

.card-icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(99, 102, 241, 0.1);
    border-radius: var(--radius-md);
    margin-bottom: 20px;
    color: var(--accent-1);
}

.about-card h3 {
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 12px;
}

.about-card p {
    color: var(--text-secondary);
    line-height: 1.8;
    font-size: 0.95rem;
}

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

.card-accent {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.about-card:hover .card-accent {
    transform: scaleX(1);
}

/* ============================================
   Skills Section
   ============================================ */
.skills {
    background: var(--bg-secondary);
}

.skills::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--glass-border), transparent);
}

.skills::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--glass-border), transparent);
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(min(100%, 140px), 1fr));
    gap: clamp(12px, 2vw, 20px);
}

.skill-card {
    padding: 28px 20px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    text-align: center;
    transition: all var(--transition-smooth);
    cursor: default;
    animation-delay: var(--delay);
}

.skill-card:hover {
    transform: translateY(-6px);
    border-color: rgba(99, 102, 241, 0.3);
    box-shadow: var(--shadow-glow);
    background: rgba(99, 102, 241, 0.05);
}

.skill-icon-wrapper {
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 16px;
    background: rgba(255, 255, 255, 0.03);
    border-radius: var(--radius-md);
    transition: var(--transition-smooth);
}

.skill-card:hover .skill-icon-wrapper {
    transform: scale(1.1);
    background: rgba(99, 102, 241, 0.1);
}

.skill-name {
    display: block;
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.skill-level {
    height: 4px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 4px;
    overflow: hidden;
}

.skill-bar {
    height: 100%;
    width: 0;
    background: var(--gradient-primary);
    border-radius: 4px;
    transition: width 1.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.skill-card.animated .skill-bar {
    width: var(--width);
}

/* ============================================
   Projects Section
   ============================================ */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(min(100%, 320px), 1fr));
    gap: clamp(16px, 3vw, 24px);
}

.project-card {
    padding: 32px;
    display: flex;
    flex-direction: column;
    animation-delay: var(--delay);
}

.project-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 24px;
}

.project-icon {
    width: 52px;
    height: 52px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(99, 102, 241, 0.1);
    border-radius: var(--radius-md);
    color: var(--accent-1);
    transition: var(--transition-smooth);
}

.project-card:hover .project-icon {
    background: rgba(99, 102, 241, 0.2);
    transform: rotate(-5deg);
}

.project-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 20px;
    color: var(--text-muted);
    border-radius: var(--radius-sm);
    transition: var(--transition-fast);
    white-space: nowrap;
    width: fit-content;
}

.project-link:hover {
    color: var(--accent-1);
    background: rgba(99, 102, 241, 0.1);
}

.project-title {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 12px;
    transition: color 0.3s;
}

.project-card:hover .project-title {
    color: var(--accent-1);
}

.project-desc {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.7;
    flex: 1;
    margin-bottom: 20px;
}

.project-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.tag {
    padding: 4px 14px;
    font-size: 0.75rem;
    font-family: var(--font-mono);
    color: var(--accent-3);
    background: rgba(6, 182, 212, 0.08);
    border-radius: 50px;
    border: 1px solid rgba(6, 182, 212, 0.15);
}

.projects-cta {
    text-align: center;
    margin-top: 48px;
}

/* ============================================
   Contact Section
   ============================================ */
.contact {
    background: var(--bg-secondary);
}

.contact::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--glass-border), transparent);
}

.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(min(100%, 240px), 1fr));
    gap: clamp(16px, 3vw, 24px);
    max-width: 900px;
    margin: 0 auto;
}

.contact-card {
    padding: 36px;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    cursor: pointer;
    animation-delay: var(--delay);
}

.contact-icon {
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-md);
    margin-bottom: 8px;
    transition: var(--transition-smooth);
}

.github-icon {
    background: rgba(255, 255, 255, 0.08);
    color: var(--text-primary);
}

.linkedin-icon {
    background: rgba(10, 102, 194, 0.15);
    color: #0a66c2;
}

.email-icon {
    background: rgba(99, 102, 241, 0.1);
    color: var(--accent-1);
}

.contact-card:hover .contact-icon {
    transform: translateY(-4px) scale(1.1);
}

.contact-card h3 {
    font-size: 1.1rem;
    font-weight: 700;
}

.contact-card p {
    color: var(--text-muted);
    font-size: 0.9rem;
}

.contact-arrow {
    font-size: 1.2rem;
    color: var(--text-muted);
    transition: var(--transition-smooth);
}

.contact-card:hover .contact-arrow {
    color: var(--accent-1);
    transform: translateX(6px);
}

/* ============================================
   Footer
   ============================================ */
.footer {
    padding: 32px 0;
    border-top: 1px solid var(--glass-border);
    position: relative;
    z-index: 1;
}

.footer-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.footer-logo {
    font-size: 1.2rem;
    font-weight: 800;
}

.footer-text {
    color: var(--text-muted);
    font-size: 0.85rem;
}

.footer-links {
    display: flex;
    gap: 16px;
}

.footer-links a {
    color: var(--text-muted);
    transition: var(--transition-fast);
    display: flex;
    align-items: center;
}

.footer-links a:hover {
    color: var(--accent-1);
    transform: translateY(-2px);
}

/* ============================================
   Reveal Animations
   ============================================ */
.reveal-up,
.reveal-left,
.reveal-right {
    opacity: 0;
    transition: opacity 0.8s ease, transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.reveal-up {
    transform: translateY(40px);
}

.reveal-left {
    transform: translateX(-40px);
}

.reveal-right {
    transform: translateX(40px);
}

.reveal-up.revealed,
.reveal-left.revealed,
.reveal-right.revealed {
    opacity: 1;
    transform: translate(0, 0);
}

@keyframes fadeInUp {
    from { opacity: 0; transform: translateX(-50%) translateY(20px); }
    to { opacity: 1; transform: translateX(-50%) translateY(0); }
}

/* ============================================
   Responsive Design
   ============================================ */

/* Large desktops */
@media (min-width: 1400px) {
    .hero-content {
        gap: 4rem;
    }

    .section-header {
        margin-bottom: 72px;
    }
}

/* Tablets & small laptops */
@media (max-width: 1024px) {
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 2.5rem;
        padding-top: calc(var(--nav-height) + 1.5rem);
    }

    .hero-text {
        display: flex;
        flex-direction: column;
        align-items: center;
    }

    .hero-description {
        margin: 0 auto var(--space-md);
        max-width: 36rem;
    }

    .hero-stats {
        margin: 0 auto var(--space-lg);
    }

    .hero-actions {
        justify-content: center;
        width: 100%;
    }

    .hero-visual {
        order: -1;
    }

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

/* Mobile */
@media (max-width: 768px) {
    :root {
        --nav-height: 64px;
    }

    .nav-toggle {
        display: flex;
    }

    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        width: min(85vw, 300px);
        height: 100vh;
        height: 100dvh;
        flex-direction: column;
        background: rgba(10, 10, 15, 0.98);
        backdrop-filter: blur(30px);
        -webkit-backdrop-filter: blur(30px);
        padding: calc(var(--nav-height) + 2rem) 1.5rem 2rem;
        padding-bottom: max(2rem, env(safe-area-inset-bottom));
        border-left: 1px solid var(--glass-border);
        transition: right 0.4s cubic-bezier(0.4, 0, 0.2, 1);
        gap: 4px;
        z-index: 999;
        overflow-y: auto;
        -webkit-overflow-scrolling: touch;
    }

    .nav-links.open {
        right: 0;
    }

    .nav-link {
        font-size: 1.05rem;
        width: 100%;
    }

    .hero-role {
        justify-content: center;
        font-size: clamp(0.85rem, 3.5vw, 1rem);
        flex-wrap: wrap;
    }

    .hero-stats {
        gap: 12px;
        padding: 14px 18px;
        width: 100%;
        max-width: 22rem;
        justify-content: space-around;
    }

    .stat-number {
        font-size: clamp(1.35rem, 5vw, 1.75rem);
    }

    .hero-actions {
        flex-direction: column;
        align-items: stretch;
        max-width: 20rem;
        margin-inline: auto;
    }

    .btn {
        width: 100%;
        justify-content: center;
        min-height: var(--touch-min);
    }

    .floating-badge {
        font-size: 0.72rem;
        padding: 8px 12px;
    }

    .badge-1 { top: 8%; right: -8%; }
    .badge-2 { bottom: 28%; left: -12%; }
    .badge-3 { bottom: 0; right: 5%; }

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

    .skill-card {
        padding: 18px 14px;
    }

    .footer-content {
        flex-direction: column;
        gap: 16px;
        text-align: center;
    }

    .footer-text {
        font-size: 0.8rem;
        line-height: 1.5;
        padding: 0 0.5rem;
    }

    .scroll-indicator {
        display: none;
    }

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

    .back-to-top {
        bottom: calc(16px + env(safe-area-inset-bottom));
        right: calc(16px + env(safe-area-inset-right));
    }
}

/* Small phones */
@media (max-width: 480px) {
    .hero-badge {
        font-size: 0.78rem;
        padding: 6px 14px;
    }

    .about-card,
    .project-card {
        padding: 1.35rem;
    }

    .contact-card {
        padding: 1.5rem;
    }

    .hero-stats {
        flex-wrap: wrap;
        justify-content: center;
        gap: 8px 20px;
    }

    .stat-divider {
        display: none;
    }

    .stat {
        min-width: 72px;
        flex: 1 1 28%;
    }

    .floating-badge {
        display: none;
    }

    .section-header {
        margin-bottom: 2.5rem;
    }
}

/* Very narrow */
@media (max-width: 360px) {
    .nav-logo {
        font-size: 1.25rem;
    }

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

/* Landscape phones */
@media (max-height: 500px) and (orientation: landscape) {
    .hero {
        min-height: auto;
        padding: calc(var(--nav-height) + 1rem) 0 2rem;
    }

    .hero-content {
        grid-template-columns: 1fr 1fr;
        text-align: left;
        gap: 1.5rem;
        padding-top: var(--nav-height);
    }

    .hero-text {
        align-items: flex-start;
    }

    .hero-visual {
        order: 0;
    }

    .profile-container {
        width: clamp(120px, 28vh, 180px);
        height: clamp(120px, 28vh, 180px);
    }

    .scroll-indicator,
    .floating-badge {
        display: none;
    }

    .hero-stats {
        margin: 0 0 1rem;
        padding: 10px 16px;
    }

    .hero-actions {
        flex-direction: row;
        flex-wrap: wrap;
        max-width: none;
    }

    .btn {
        width: auto;
        padding: 10px 18px;
        font-size: 0.85rem;
    }
}

/* Touch devices — native cursor */
@media (hover: none), (pointer: coarse) {
    .cursor-dot,
    .cursor-outline {
        display: none !important;
    }

    body {
        cursor: auto;
    }

    .glass-card:hover {
        transform: none;
    }

    .skill-card:hover {
        transform: none;
    }
}

/* Disable animations for users who prefer 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;
    }

    .reveal-up, .reveal-left, .reveal-right {
        opacity: 1;
        transform: none;
    }

    #particles-canvas {
        display: none;
    }

    .section {
        content-visibility: visible;
    }
}

/* Skill level badges */
.skill-tag {
  display: inline-block;
  padding: 0.5rem 1.2rem;
  border-radius: 99px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: var(--text-light, #fff);
  font-weight: 500;
  font-size: 0.95rem;
  transition: all 0.3s ease;
  backdrop-filter: blur(10px);
}
.skill-tag:hover {
  transform: translateY(-2px);
  background: rgba(255, 255, 255, 0.1);
}
.skill-tag.skill-beginner     { border-color: #6366f1; }
.skill-tag.skill-intermediate { border-color: #06b6d4; }
.skill-tag.skill-advanced     { border-color: #10b981; }

/* Project card auto-layout */
[data-projects-container] {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.5rem;
}

[data-skills-container] {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: center;
}

/* Loading spinner for GitHub fetch */
.loading-spinner {
  width: 36px;
  height: 36px;
  border: 3px solid rgba(99, 102, 241, 0.15);
  border-top-color: var(--accent-1, #6366f1);
  border-radius: 50%;
  margin: 0 auto;
  animation: spin 0.8s linear infinite;
}

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

/* dynamic project cards */
.project-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:.75rem}
.project-icon{color:var(--accent,#818cf8);opacity:.8}
.project-meta{display:flex;gap:.5rem;font-size:.75rem;color:var(--text-muted,#94a3b8)}
.project-meta-item{display:flex;align-items:center;gap:2px}
.project-title{font-size:1.05rem;font-weight:600;margin-bottom:.5rem}
.project-desc{font-size:.875rem;color:var(--text-muted,#94a3b8);line-height:1.6;margin-bottom:.75rem;flex:1}
.project-tags{display:flex;flex-wrap:wrap;gap:.4rem;margin-bottom:.9rem}
.project-tag{font-size:.7rem;padding:2px 8px;border-radius:999px;font-weight:500}
.project-link{display:inline-flex;align-items:center;gap:6px;font-size:.8rem;font-weight:600;color:var(--accent,#818cf8);text-decoration:none;transition:gap .2s}
.project-link:hover{gap:10px}
.project-card{display:flex;flex-direction:column}
.projects-loading{grid-column:1/-1;display:flex;align-items:center;justify-content:center;gap:.75rem;color:var(--text-muted,#94a3b8);padding:3rem 0;font-size:.9rem}
.loading-spinner{width:20px;height:20px;border:2px solid rgba(129,140,248,.3);border-top-color:#818cf8;border-radius:50%;animation:spin .8s linear infinite;display:inline-block}
@keyframes spin{to{transform:rotate(360deg)}}
.projects-error,.no-projects{grid-column:1/-1;text-align:center;padding:3rem 0;color:var(--text-muted,#94a3b8)}