/* ==================== Design System ==================== */


:root {
    /* Colors — Purple / Blue / Teal */
    --c-purple-50: #f5f3ff;
    --c-purple-100: #ede9fe;
    --c-purple-200: #ddd6fe;
    --c-purple-300: #c4b5fd;
    --c-purple-400: #a78bfa;
    --c-purple-500: #8b5cf6;
    --c-purple-600: #7c3aed;
    --c-purple-700: #6d28d9;
    --c-blue-400: #60a5fa;
    --c-blue-500: #3b82f6;
    --c-blue-600: #2563eb;
    --c-teal-400: #2dd4bf;
    --c-teal-500: #14b8a6;
    --c-teal-600: #0d9488;

    /* Surfaces */
    --bg-primary: #06080f;
    --bg-secondary: #0c1021;
    --bg-elevated: rgba(15, 20, 40, 0.6);
    --bg-card: rgba(15, 20, 45, 0.45);
    --bg-card-hover: rgba(20, 28, 60, 0.55);
    --bg-glass: rgba(255, 255, 255, 0.03);
    --bg-glass-hover: rgba(255, 255, 255, 0.06);

    /* Text */
    --text-primary: #f0f0f5;
    --text-secondary: #a0a5c0;
    --text-tertiary: #6b7094;
    --text-accent: var(--c-purple-400);

    /* Borders */
    --border-subtle: rgba(255, 255, 255, 0.06);
    --border-default: rgba(255, 255, 255, 0.08);
    --border-hover: rgba(139, 92, 246, 0.3);
    --border-glow: rgba(139, 92, 246, 0.5);

    /* Gradients */
    --gradient-primary: linear-gradient(135deg, var(--c-purple-600) 0%, var(--c-blue-500) 50%, var(--c-teal-500) 100%);
    --gradient-text: linear-gradient(135deg, var(--c-purple-400) 0%, var(--c-blue-400) 50%, var(--c-teal-400) 100%);
    --gradient-subtle: linear-gradient(135deg, rgba(139, 92, 246, 0.1) 0%, rgba(59, 130, 246, 0.1) 50%, rgba(20, 184, 166, 0.05) 100%);
    --gradient-card-border: linear-gradient(135deg, rgba(139, 92, 246, 0.3), rgba(59, 130, 246, 0.15), rgba(20, 184, 166, 0.1));
    --gradient-hero: radial-gradient(ellipse at 20% 50%, rgba(139, 92, 246, 0.12) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 20%, rgba(59, 130, 246, 0.08) 0%, transparent 50%),
        radial-gradient(ellipse at 60% 80%, rgba(20, 184, 166, 0.06) 0%, transparent 50%);

    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 8px 32px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 16px 64px rgba(0, 0, 0, 0.4);
    --shadow-glow: 0 0 30px rgba(139, 92, 246, 0.15);
    --shadow-glow-lg: 0 0 60px rgba(139, 92, 246, 0.2);

    /* Typography */
    --font-body: 'Google Sans Code', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-code: 'Google Sans Code', 'Fira Code', 'Courier New', monospace;
    --font-heading: 'Fira Code', 'Share Tech Mono', monospace;

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

    /* Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 9999px;

    /* Transitions */
    --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
    --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
    --transition-fast: 0.2s var(--ease-out);
    --transition-base: 0.35s var(--ease-out);
    --transition-slow: 0.6s var(--ease-out);
}

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

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

body {
    font-family: var(--font-body);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.7;
    overflow-x: hidden;
    position: relative;
}

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

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

button {
    font-family: inherit;
    cursor: pointer;
}

/* ==================== Noise Texture Overlay ==================== */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    pointer-events: none;
    opacity: 0.025;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='1'/%3E%3C/svg%3E");
    background-repeat: repeat;
    background-size: 256px 256px;
}

/* Grid dot pattern */
body::after {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    pointer-events: none;
    background-image: radial-gradient(circle, rgba(139, 92, 246, 0.07) 1px, transparent 1px);
    background-size: 40px 40px;
}

/* ==================== Canvas & Floating Code ==================== */
#code-bg-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    pointer-events: none;
    opacity: 0.08;
}

#floating-code-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    pointer-events: none;
    z-index: 0;
    overflow: hidden;
}

.floating-snippet {
    position: absolute;
    font-family: var(--font-code);
    color: var(--c-teal-400);
    white-space: nowrap;
    user-select: none;
    animation: floatCode linear infinite;
    text-shadow: 0 0 20px rgba(45, 212, 191, 0.3);
    font-weight: 500;
    opacity: 0.15;
}

/* ==================== Layout ==================== */
.navbar,
section,
.footer,
.back-to-top,
.header {
    position: relative;
    z-index: 1;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 clamp(1.25rem, 4vw, 2.5rem);
}

section {
    padding: clamp(4rem, 8vw, 7rem) 0;
    position: relative;
}

/* ==================== Navbar ==================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    width: 100%;
    background: rgba(13, 13, 30, 0.92);
    border-bottom: 1px solid var(--border-subtle);
    padding: 1.15rem 0;
    z-index: 1000;
    transition: backdrop-filter 0.3s ease, -webkit-backdrop-filter 0.3s ease, box-shadow 0.3s ease;
    display: flex;
    align-items: center;
}

.navbar.scrolled {
    backdrop-filter: blur(12px) saturate(1.5);
    -webkit-backdrop-filter: blur(12px) saturate(1.5);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
    border-bottom-color: var(--border-default);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 clamp(1.25rem, 4vw, 2.5rem);
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    position: relative;
}

.navbar-brand {
    font-family: 'Fira Code', monospace;
    font-size: 1.25rem;
    font-weight: 700;
    text-decoration: none;
    transition: all 0.4s var(--ease-out);
    letter-spacing: -0.5px;
    white-space: nowrap;
    background: var(--gradient-text);
    background-size: 200% 100%;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.navbar-brand:hover {
    background-position: 100% 0;
    filter: brightness(1.2);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 0.25rem;
    align-items: center;
    position: relative;
    flex: 1;
}

@media (min-width: 769px) {
    .nav-menu::before {
        content: '';
        margin-right: auto;
    }
}

.nav-menu li:nth-child(4) {
    margin-left: auto;
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color var(--transition-fast), background var(--transition-fast);
    position: relative;
    font-size: 0.875rem;
    font-weight: 500;
    letter-spacing: -0.01em;
    padding: 0.5rem 1rem;
    border-radius: var(--radius-sm);
}

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

.nav-link.active {
    color: var(--c-purple-400);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 2px;
    left: 10%;
    width: 0;
    height: 2px;
    background: var(--gradient-text);
    transition: width 0.3s ease;
    border-radius: 2px;
}

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

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 5px;
    padding: 4px;
    border: none;
    background: none;
}

.hamburger span {
    width: 22px;
    height: 2px;
    background-color: var(--text-secondary);
    border-radius: 2px;
    transition: all var(--transition-base);
    transform-origin: center;
}

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

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

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

/* ==================== Hero Section ==================== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    /* padding-top: 80px; (moved to body) */
}

/* Gradient mesh background */
.hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--gradient-hero);
    z-index: 0;
    animation: meshShift 20s ease-in-out infinite alternate;
}

/* Animated gradient orbs */
.hero::after {
    content: '';
    position: absolute;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(139, 92, 246, 0.15) 0%, transparent 70%);
    border-radius: 50%;
    top: -10%;
    right: -10%;
    animation: orbFloat 15s ease-in-out infinite alternate;
    z-index: 0;
}

@keyframes meshShift {
    0% {
        opacity: 1;
    }

    50% {
        opacity: 0.7;
    }

    100% {
        opacity: 1;
    }
}

@keyframes orbFloat {
    0% {
        transform: translate(0, 0) scale(1);
    }

    50% {
        transform: translate(-40px, 30px) scale(1.1);
    }

    100% {
        transform: translate(20px, -20px) scale(0.95);
    }
}

.hero-content {
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    z-index: 2;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 clamp(1.25rem, 4vw, 2.5rem);
    width: 100%;
    gap: 3rem;
}

.hero-left {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    text-align: left;
    flex: 1;
    min-width: 0;
}

.hero-right {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    align-self: center;
    /* Center vertically relative to the left content */
    position: relative;
    padding-top: 2rem;
}

/* Code Editor Card */
.code-editor-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-default);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg), var(--shadow-glow);
    overflow: hidden;
    width: 100%;
    max-width: 340px;
    position: relative;
    z-index: 3;
    transform: translateY(0);
    transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.code-editor-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg), var(--shadow-glow-lg);
}

.editor-header {
    background: rgba(15, 20, 40, 0.8);
    padding: 0.6rem 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--border-subtle);
}

.editor-filename {
    font-family: var(--font-code);
    font-size: 0.8rem;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
}

.python-icon {
    margin-right: 0.4rem;
    font-size: 1.1rem;
    background: linear-gradient(135deg, #3776AB 45%, #FFD43B 55%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: inline-block;
}

.editor-lang-badge {
    font-family: var(--font-code);
    font-size: 0.65rem;
    font-weight: 600;
    color: var(--c-purple-300);
    background: rgba(139, 92, 246, 0.1);
    border: 1px solid rgba(139, 92, 246, 0.2);
    padding: 0.15rem 0.6rem;
    border-radius: var(--radius-full);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.editor-body {
    padding: 1.25rem 1.5rem;
    font-family: var(--font-code);
    font-size: 0.85rem;
    line-height: 1.6;
    color: var(--text-primary);
    overflow-x: auto;
}

.editor-body pre {
    margin: 0;
}

/* Syntax Highlighting */
.editor-body .keyword {
    color: var(--c-purple-400);
    /* Purple for keywords */
}

.editor-body .function {
    color: var(--c-blue-400);
    /* Blue for functions */
}

.editor-body .string {
    color: var(--c-teal-300);
    /* Teal/Green for strings */
}

.editor-body .operator {
    color: var(--text-secondary);
    /* Dim color for quotes, commas etc */
}

.editor-body .circles {
    font-size: 0.95em;
    letter-spacing: 0.15em;
    color: #86efac;
    /* Soft green for the dots */
    text-shadow: 0 0 8px rgba(134, 239, 172, 0.4);
    /* Soft glow effect */
}

/* Binary Typewriter Badge */
.status-badge {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 0.8rem 1.5rem;
    background: rgba(20, 184, 166, 0.05);
    border: 1px solid rgba(20, 184, 166, 0.15);
    border-radius: var(--radius-md);
    margin-bottom: 0;
    margin-top: 1.5rem;
    position: relative;
    overflow: hidden;
    min-width: 320px;
    height: 60px;
    z-index: 1;
    transform: translateY(0);
}

.status-badge::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg, transparent, rgba(20, 184, 166, 0.1), transparent);
    transform: translateX(-100%);
    animation: scanline 3s infinite;
}

@keyframes scanline {
    100% {
        transform: translateX(100%);
    }
}

.typewriter-line {
    font-family: var(--font-code);
    font-size: 0.75rem;
    color: var(--c-teal-400);
    overflow: hidden;
    white-space: nowrap;
    border-right: 2px solid transparent;
    text-shadow: 0 0 10px rgba(45, 212, 191, 0.3);
    margin-bottom: 4px;
    opacity: 0.8;
}

.typewriter-line:last-child {
    margin-bottom: 0;
}

/* 
  Line 1 is 39 characters long (01001000 01100101 01101100 01101100 01101111)
  Line 2 is 48 characters long (01010111 01101111 01110010 01101100 01100100 00100001)
*/

.line-1 {
    animation: typeLine1 12s linear infinite;
}

.line-2 {
    animation: typeLine2 12s linear infinite;
}

@keyframes typeLine1 {

    0%,
    5% {
        width: 0;
        border-right-color: var(--c-teal-400);
    }

    30% {
        width: 39ch;
        border-right-color: var(--c-teal-400);
    }

    32%,
    60% {
        width: 39ch;
        border-right-color: transparent;
    }

    62% {
        width: 39ch;
        border-right-color: var(--c-teal-400);
    }

    85% {
        width: 0;
        border-right-color: var(--c-teal-400);
    }

    87%,
    100% {
        width: 0;
        border-right-color: transparent;
    }
}

@keyframes typeLine2 {

    0%,
    25% {
        width: 0;
        border-right-color: transparent;
    }

    27% {
        width: 0;
        border-right-color: var(--c-teal-400);
    }

    55% {
        width: 48ch;
        border-right-color: var(--c-teal-400);
    }

    57%,
    62% {
        width: 48ch;
        border-right-color: transparent;
    }

    64% {
        width: 48ch;
        border-right-color: var(--c-teal-400);
    }

    85% {
        width: 0;
        border-right-color: var(--c-teal-400);
    }

    87%,
    100% {
        width: 0;
        border-right-color: transparent;
    }
}

.hero-title {
    font-family: var(--font-heading);
    font-size: clamp(1.5rem, 3.5vw, 2.2rem);
    line-height: 1.1;
    margin-bottom: 1.25rem;
    font-weight: 700;
    letter-spacing: -0.03em;
    color: var(--text-primary);
}

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

.hero-subtitle {
    font-size: clamp(0.8rem, 1.5vw, 0.95rem);
    color: var(--text-secondary);
    margin-bottom: 0;
    line-height: 1.8;
    max-width: 560px;
    font-weight: 400;
}

/* Hero Intro Card */
.hero-intro-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-default);
    border-radius: var(--radius-xl);
    padding: 2.5rem 2.5rem 2rem;
    margin-bottom: 2rem;
    position: relative;
    overflow: hidden;
    max-width: 660px;
    width: 100%;
    box-shadow: var(--shadow-md);
    align-self: flex-start;
    text-align: left;
}

.hero-intro-card::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: var(--radius-xl);
    padding: 1px;
    background: var(--gradient-card-border);
    mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    pointer-events: none;
    opacity: 0.6;
    transition: opacity var(--transition-base);
}

.hero-intro-card:hover::before {
    opacity: 1;
}

.hero-intro-card:hover {
    border-color: var(--border-hover);
    box-shadow: var(--shadow-glow);
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    justify-content: center;
    margin-bottom: 1.5rem;
}

/* ==================== Buttons ==================== */
.btn {
    padding: 0.75rem 1.75rem;
    border-radius: var(--radius-full);
    text-decoration: none;
    transition: all var(--transition-base);
    font-weight: 600;
    border: none;
    cursor: pointer;
    font-size: 0.9rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: 0 4px 20px rgba(139, 92, 246, 0.3);
    background-size: 200% 100%;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(139, 92, 246, 0.45);
    background-position: 100% 0;
}

.btn-primary:active {
    transform: translateY(0);
}

.btn-secondary {
    background: transparent;
    color: var(--text-primary);
    border: 1px solid var(--border-default);
    backdrop-filter: blur(10px);
}

.btn-secondary:hover {
    background: rgba(139, 92, 246, 0.08);
    border-color: var(--border-hover);
    transform: translateY(-2px);
}

/* ==================== Social Links ==================== */
.social-links {
    display: flex;
    gap: 0.75rem;
    justify-content: center;
    margin-top: 0.5rem;
}

.social-icon {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-glass);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-sm);
    color: var(--text-tertiary);
    transition: all var(--transition-base);
    font-size: 1rem;
}

.social-icon:hover {
    color: var(--c-purple-400);
    border-color: var(--border-hover);
    background: rgba(139, 92, 246, 0.08);
    transform: translateY(-3px);
    box-shadow: 0 4px 12px rgba(139, 92, 246, 0.15);
}

/* ==================== Scroll Indicator ==================== */
.scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    z-index: 2;
}

.scroll-indicator span {
    width: 1.5px;
    height: 28px;
    background: linear-gradient(to bottom, var(--c-purple-500), transparent);
    border-radius: 2px;
    animation: scrollBounce 2s ease-in-out infinite;
}

@keyframes scrollBounce {

    0%,
    100% {
        transform: translateY(0);
        opacity: 1;
    }

    50% {
        transform: translateY(8px);
        opacity: 0.3;
    }
}

/* ==================== Section Styles ==================== */
.section-header {
    text-align: center;
    margin-bottom: clamp(2.5rem, 5vw, 4rem);
}

.section-label {
    font-family: var(--font-code);
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--c-purple-400);
    text-transform: uppercase;
    letter-spacing: 0.15em;
    margin-bottom: 0.75rem;
    display: block;
}

.section-title {
    font-family: var(--font-heading);
    font-size: clamp(1.4rem, 2.8vw, 2rem);
    font-weight: 700;
    letter-spacing: -0.03em;
    color: var(--text-primary);
    line-height: 1.2;
    margin-bottom: 0;
}

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

.section-desc {
    color: var(--text-secondary);
    font-size: 1rem;
    max-width: 550px;
    margin: 0.75rem auto 0;
    line-height: 1.7;
}

/* Section divider */
section+section {
    border-top: 1px solid var(--border-subtle);
}

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

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 1.5rem;
    align-items: start;
}

.project-card {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all var(--transition-base);
    display: flex;
    flex-direction: column;
    position: relative;
}

.project-card::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: var(--radius-lg);
    padding: 1px;
    background: var(--gradient-card-border);
    mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    pointer-events: none;
    opacity: 0;
    transition: opacity var(--transition-base);
}

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

.project-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-glow);
    background: var(--bg-card-hover);
}

.project-image {
    height: 180px;
    background: var(--gradient-subtle);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.8rem;
    color: var(--c-purple-400);
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.project-image::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, var(--bg-card) 0%, transparent 40%);
    pointer-events: none;
}

.project-card:hover .project-image {
    color: var(--c-purple-300);
}

.project-card:hover .project-image i {
    transform: scale(1.1);
    transition: transform var(--transition-base);
}

.project-content {
    padding: 1.25rem 1.5rem 1.5rem;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

/* ==================== Project Accordion ==================== */
.project-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
}

.project-header .project-title {
    margin-bottom: 0;
}

.expand-btn {
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 1.1rem;
    cursor: pointer;
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1), color 0.3s ease;
    padding: 0.25rem 0.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
}

.project-header:hover .expand-btn {
    color: var(--c-purple-400);
}

.project-details {
    display: grid;
    grid-template-rows: 0fr;
    transition: grid-template-rows 0.4s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.3s ease;
    overflow: hidden;
    opacity: 0;
}

.project-details-inner {
    min-height: 0;
    display: flex;
    flex-direction: column;
    padding-top: 0.5rem;
    /* Space between title and description when expanded */
}

.project-card.expanded .project-details {
    grid-template-rows: 1fr;
    opacity: 1;
}

.project-card.expanded .expand-btn {
    transform: rotate(180deg);
}

.project-title {
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
    font-weight: 700;
    letter-spacing: -0.02em;
}

.project-description {
    color: var(--text-secondary);
    margin-bottom: 1rem;
    flex-grow: 1;
    font-size: 0.875rem;
    line-height: 1.7;
}

.project-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
    margin-bottom: 1rem;
}

.tag {
    font-family: var(--font-code);
    background: rgba(139, 92, 246, 0.08);
    color: var(--c-purple-400);
    padding: 0.2rem 0.65rem;
    border-radius: var(--radius-full);
    font-size: 0.7rem;
    font-weight: 500;
    border: 1px solid rgba(139, 92, 246, 0.15);
    transition: all var(--transition-fast);
}

.tag:hover {
    background: rgba(139, 92, 246, 0.15);
    border-color: rgba(139, 92, 246, 0.3);
}

.project-link {
    color: var(--c-purple-400);
    font-weight: 600;
    font-size: 0.85rem;
    transition: all var(--transition-fast);
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
}

.project-link:hover {
    color: var(--c-purple-300);
    gap: 0.6rem;
}

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

.skills-content {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
}

.skill-category {
    background: var(--bg-card);
    padding: 1.75rem;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-subtle);
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.skill-category::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: var(--radius-lg);
    padding: 1px;
    background: var(--gradient-card-border);
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    pointer-events: none;
    opacity: 0;
    transition: opacity var(--transition-base);
}

.skill-category:hover::before {
    opacity: 1;
}

.skill-category:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-glow);
}

.category-title {
    font-size: 1rem;
    margin-bottom: 1.25rem;
    color: var(--text-primary);
    font-weight: 700;
    letter-spacing: -0.02em;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.category-title::before {
    content: '';
    width: 3px;
    height: 18px;
    background: var(--gradient-primary);
    border-radius: 2px;
    flex-shrink: 0;
}

/* Skills as tag cloud (no bars) */
.skills-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.skill-tag {
    font-family: var(--font-code);
    background: var(--bg-glass);
    color: var(--text-secondary);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-full);
    border: 1px solid var(--border-subtle);
    font-weight: 500;
    font-size: 0.8rem;
    transition: all var(--transition-fast);
    cursor: default;
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
}

.skill-tag:hover {
    color: var(--c-purple-400);
    border-color: var(--border-hover);
    background: rgba(139, 92, 246, 0.06);
    transform: translateY(-2px);
}

.skill-tag .skill-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    flex-shrink: 0;
}

.skill-dot.purple {
    background: var(--c-purple-400);
}

.skill-dot.blue {
    background: var(--c-blue-400);
}

.skill-dot.teal {
    background: var(--c-teal-400);
}

/* Tools */
.tools-list {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.tool-badge {
    font-family: var(--font-code);
    background: var(--bg-glass);
    color: var(--text-secondary);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-full);
    border: 1px solid var(--border-subtle);
    font-weight: 500;
    font-size: 0.8rem;
    transition: all var(--transition-fast);
    cursor: default;
}

.tool-badge:hover {
    color: var(--c-purple-400);
    border-color: var(--border-hover);
    background: rgba(139, 92, 246, 0.06);
    transform: translateY(-2px);
}

/* Certificates — Horizontal cards */
.certificates-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0.75rem;
}

.certificate-card {
    background: var(--bg-glass);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    padding: 1rem 1.25rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    transition: all var(--transition-fast);
}

.certificate-card:hover {
    border-color: var(--border-hover);
    background: rgba(139, 92, 246, 0.04);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(139, 92, 246, 0.08);
}

.certificate-card .cert-icon {
    font-size: 1.1rem;
    color: var(--c-purple-400);
    flex-shrink: 0;
}

.certificate-card .cert-info {
    flex: 1;
    min-width: 0;
}

.certificate-card .cert-name {
    color: var(--text-primary);
    font-size: 0.82rem;
    font-weight: 600;
    margin-bottom: 0.1rem;
    line-height: 1.4;
}

.certificate-card .cert-meta {
    color: var(--text-tertiary);
    font-size: 0.72rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.certificate-card .cert-meta .cert-issuer {
    color: var(--c-purple-400);
    font-weight: 500;
}

/* ==================== Contact Section ==================== */
.contact {
    background: transparent;
    /* Allows floating background code to show through */
}

.contact-content {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    max-width: 1000px;
    margin: 0 auto;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.info-card {
    background: var(--bg-card);
    padding: 1.25rem;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-subtle);
    display: flex;
    align-items: center;
    gap: 1.25rem;
    transition: all var(--transition-fast);
    text-decoration: none;
}

.info-card:hover {
    border-color: var(--border-hover);
    transform: translateX(6px);
    box-shadow: 0 4px 20px rgba(139, 92, 246, 0.1);
}

.info-icon {
    font-size: 1.2rem;
    color: var(--c-purple-400);
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-subtle);
    border-radius: var(--radius-sm);
    flex-shrink: 0;
}

.info-text h3 {
    color: var(--text-primary);
    margin-bottom: 0.15rem;
    font-size: 0.9rem;
    font-weight: 600;
    letter-spacing: -0.01em;
}

.info-text p {
    color: var(--text-secondary);
    font-size: 0.85rem;
}

.info-text a {
    color: var(--text-secondary);
    transition: color var(--transition-fast);
}

.info-text a:hover {
    color: var(--c-purple-400);
}

/* ==================== Contact Form ==================== */
.contact-form {
    background: var(--bg-card);
    padding: 2rem;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-subtle);
    display: flex;
    flex-direction: column;
    gap: 1rem;
    position: relative;
    overflow: hidden;
}

.contact-form::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: var(--radius-lg);
    padding: 1px;
    background: var(--gradient-card-border);
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    pointer-events: none;
    opacity: 0.5;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
}

.form-input {
    padding: 0.85rem 1rem;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-family: inherit;
    font-size: 0.9rem;
    transition: all var(--transition-fast);
    resize: vertical;
}

.form-input:focus {
    outline: none;
    border-color: var(--c-purple-500);
    box-shadow: 0 0 0 3px rgba(139, 92, 246, 0.08);
    background: rgba(139, 92, 246, 0.03);
}

.form-input::placeholder {
    color: var(--text-tertiary);
    font-size: 0.85rem;
}

/* ==================== Footer ==================== */
.footer {
    background: rgba(13, 13, 30, 0.6);
    border-top: 1px solid var(--border-subtle);
    padding: 3rem 0;
    margin-top: 4rem;
    backdrop-filter: blur(10px);
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 clamp(1.25rem, 4vw, 2.5rem);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.5rem;
}

.footer-container p {
    color: var(--text-tertiary);
    font-size: 0.85rem;
    text-align: center;
}

.social-icons {
    display: flex;
    gap: 1.5rem;
}

.social-icons a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 45px;
    height: 45px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.03);
    color: var(--text-secondary);
    text-decoration: none;
    transition: all 0.3s ease;
    font-size: 1.2rem;
    border: 1px solid var(--border-subtle);
}

.social-icons a:hover {
    background: var(--c-purple-500);
    border-color: var(--c-purple-500);
    color: #fff;
    transform: translateY(-4px);
    box-shadow: 0 8px 20px rgba(139, 92, 246, 0.25);
}

.footer-divider {
    width: 100%;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.15), transparent);
    margin: 0.5rem 0;
}

/* ==================== Back to Top ==================== */
.back-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 44px;
    height: 44px;
    background: rgba(139, 92, 246, 0.25);
    border: 1px solid rgba(139, 92, 246, 0.5);
    border-radius: var(--radius-sm);
    color: #fff;
    font-size: 1.1rem;
    cursor: pointer;
    display: none;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.4);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    transition: all var(--transition-base);
    z-index: 999;
}

.back-to-top.show {
    display: flex;
    animation: fadeInUp 0.4s var(--ease-out);
}

.back-to-top:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 20px rgba(139, 92, 246, 0.5);
    background: rgba(139, 92, 246, 0.4);
    border-color: var(--c-purple-400);
    color: #fff;
}

/* ==================== Animations ==================== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-15px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes floatCode {
    0% {
        transform: translateY(110vh);
    }

    100% {
        transform: translateY(-20vh);
    }
}

@keyframes pulse {

    0%,
    100% {
        transform: translate(-50%, -50%) scale(1);
        opacity: 0.6;
    }

    50% {
        transform: translate(-50%, -50%) scale(1.15);
        opacity: 0.3;
    }
}

/* Reveal animation classes */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.7s var(--ease-out), transform 0.7s var(--ease-out);
}

.reveal.revealed {
    opacity: 1;
    transform: translateY(0);
}

.reveal-delay-1 {
    transition-delay: 0.1s;
}

.reveal-delay-2 {
    transition-delay: 0.2s;
}

.reveal-delay-3 {
    transition-delay: 0.3s;
}

.reveal-delay-4 {
    transition-delay: 0.4s;
}

.reveal-delay-5 {
    transition-delay: 0.5s;
}


/* ==================== Responsive Design ==================== */
@media (max-width: 1024px) {
    .hero-content {
        flex-direction: column;
        gap: 2rem;
        align-items: center;
        text-align: center;
    }

    .hero-left {
        align-items: center;
        text-align: center;
    }

    .hero-right {
        align-self: center;
        margin-bottom: 0;
        margin-top: 1rem;
    }

    .code-editor-card,
    .status-badge {
        transform: translate(0, 0);
    }

    .status-badge {
        margin-top: 1.5rem;
    }

    .code-editor-card:hover {
        transform: translateY(-6px);
    }

    .hero-buttons {
        justify-content: center;
    }

    .contact-content {
        grid-template-columns: 1fr;
    }

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

@media (max-width: 768px) {
    .nav-menu {
        display: none;
        position: fixed;
        top: 72px;
        left: 0;
        right: 0;
        bottom: auto;
        background: rgba(13, 13, 30, 0.98);
        border-bottom: 1px solid var(--border-subtle);
        box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
        backdrop-filter: blur(20px);
        flex-direction: column;
        padding: 1rem 0;
        gap: 0;
        align-items: center;
        justify-content: flex-start;
        z-index: 999;
    }

    .nav-menu li {
        width: 100%;
        margin: 0 !important;
    }

    .nav-menu.active {
        display: flex;
        animation: fadeInDown 0.3s var(--ease-out);
    }

    .nav-menu .nav-link {
        font-size: 1.1rem;
        padding: 1rem 2rem;
        width: 100%;
        text-align: center;
        display: block;
    }

    .hamburger {
        display: flex;
        z-index: 1001;
    }

    .navbar-brand {
        font-size: 1.1rem;
    }

    .hero {
        min-height: auto;
        padding-top: 120px;
        padding-bottom: 60px;
    }

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

    .skills-content {
        grid-template-columns: 1fr;
    }

    .section-title {
        font-size: 1.5rem;
    }

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

@media (max-width: 480px) {
    .hero-title {
        font-size: 1.5rem;
    }

    .hero-subtitle {
        font-size: 0.95rem;
    }

    .hero-buttons {
        flex-direction: column;
        width: 100%;
    }

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

    .social-links {
        gap: 0.5rem;
    }

    .social-icon {
        width: 38px;
        height: 38px;
        font-size: 0.9rem;
    }

    .hero-intro-card {
        padding: 1.5rem 1.25rem;
    }

    .status-badge {
        min-width: 100%;
        padding: 0.6rem 0.5rem;
    }

    .typewriter-line {
        font-size: 0.6rem;
    }
}

/* ==================== Email Modal ==================== */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 3000;
    opacity: 0;
    visibility: hidden;
    transition: all 0.4s var(--ease-out);
}

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

.modal-content {
    background: var(--bg-secondary);
    border: 1px solid var(--border-default);
    border-radius: var(--radius-xl);
    width: 90%;
    max-width: 400px;
    padding: 2rem;
    position: relative;
    transform: scale(0.9) translateY(20px);
    transition: all 0.5s var(--ease-spring);
    box-shadow: var(--shadow-lg), var(--shadow-glow-lg);
    overflow: hidden;
}

.modal-overlay.active .modal-content {
    transform: scale(1) translateY(0);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

.modal-header h3 {
    font-family: var(--font-heading);
    color: var(--text-primary);
    font-size: 1.25rem;
    margin: 0;
}

.modal-close {
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 1.5rem;
    cursor: pointer;
    transition: color var(--transition-fast);
}

.modal-close:hover {
    color: var(--c-purple-400);
}

.modal-body {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.5rem;
}

.email-display {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    background: var(--bg-glass);
    border: 1px solid var(--border-subtle);
    padding: 1rem 1.25rem;
    border-radius: var(--radius-md);
    width: 100%;
    color: var(--text-primary);
    font-family: var(--font-code);
    font-size: 0.95rem;
    word-break: break-all;
    justify-content: center;
}

.email-display i {
    color: var(--c-purple-400);
}

.copy-btn {
    width: 100%;
    height: 48px;
    font-size: 1rem;
}