/* ==============================
   CSS DESIGN SYSTEM — PRINCE LAKHANI PORTFOLIO
   ============================== */

/* ---------- CSS Variables ---------- */
:root {
    --bg-primary: #0a0a0f;
    --bg-secondary: #12121a;
    --bg-tertiary: #1a1a2e;
    --bg-card: rgba(22, 22, 35, 0.7);
    --bg-glass: rgba(255, 255, 255, 0.03);
    --bg-glass-hover: rgba(255, 255, 255, 0.06);

    --text-primary: #f0f0f5;
    --text-secondary: #a0a0b8;
    --text-tertiary: #6a6a82;
    --text-accent: #818cf8;

    --accent-primary: #818cf8;
    --accent-secondary: #6366f1;
    --accent-glow: rgba(129, 140, 248, 0.25);
    --accent-gradient: linear-gradient(135deg, #818cf8 0%, #6366f1 50%, #a78bfa 100%);

    --border-color: rgba(255, 255, 255, 0.06);
    --border-hover: rgba(255, 255, 255, 0.12);

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

    --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 48px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 40px rgba(129, 140, 248, 0.15);

    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-display: 'Space Grotesk', 'Inter', sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

    --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.6s cubic-bezier(0.4, 0, 0.2, 1);

    --nav-height: 72px;
    --container-max: 1200px;
    --container-padding: 24px;
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: var(--nav-height);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

::selection {
    background: var(--accent-primary);
    color: #fff;
}

a {
    text-decoration: none;
    color: inherit;
    transition: color var(--transition-fast);
}

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

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

/* ---------- Cursor Glow ---------- */
.cursor-glow {
    position: fixed;
    width: 600px;
    height: 600px;
    border-radius: 50%;
    pointer-events: none;
    z-index: 1;
    background: radial-gradient(circle, rgba(129, 140, 248, 0.06) 0%, transparent 70%);
    transform: translate(-50%, -50%);
    transition: opacity 0.3s ease;
    opacity: 0;
}

.cursor-glow.active {
    opacity: 1;
}

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

/* ---------- Container ---------- */
.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

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

/* =============================================
   NAVIGATION
   ============================================= */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    height: var(--nav-height);
    background: rgba(10, 10, 15, 0.6);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid transparent;
    transition: all var(--transition-base);
}

.navbar.scrolled {
    background: rgba(10, 10, 15, 0.9);
    border-bottom: 1px solid var(--border-color);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
}

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

.nav-logo {
    font-family: var(--font-mono);
    font-size: 1.3rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0;
    transition: transform var(--transition-fast);
}

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

.logo-bracket {
    color: var(--accent-primary);
    font-weight: 700;
}

.logo-text {
    color: var(--text-primary);
    margin: 0 2px;
}

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

.nav-link {
    font-size: 0.88rem;
    font-weight: 500;
    color: var(--text-secondary);
    padding: 8px 16px;
    border-radius: var(--radius-full);
    position: relative;
    transition: all var(--transition-fast);
}

.nav-link:hover,
.nav-link.active {
    color: var(--text-primary);
    background: var(--bg-glass-hover);
}

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

.nav-cta {
    font-size: 0.88rem;
    font-weight: 600;
    padding: 10px 24px;
    border-radius: var(--radius-full);
    background: var(--accent-gradient);
    color: #fff;
    transition: all var(--transition-fast);
    box-shadow: 0 4px 16px rgba(99, 102, 241, 0.3);
}

.nav-cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 24px rgba(99, 102, 241, 0.45);
}

/* Mobile Toggle */
.mobile-toggle {
    display: none;
    width: 32px;
    height: 24px;
    flex-direction: column;
    justify-content: space-between;
    z-index: 1001;
}

.mobile-toggle span {
    display: block;
    width: 100%;
    height: 2px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: all var(--transition-fast);
    transform-origin: center;
}

.mobile-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(8px, 8px);
}

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

.mobile-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(8px, -8px);
}

/* Mobile Overlay */
.mobile-menu-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(10, 10, 15, 0.95);
    backdrop-filter: blur(20px);
    z-index: 999;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity var(--transition-base);
}

.mobile-menu-overlay.active {
    display: flex;
    opacity: 1;
}

.mobile-menu-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
}

.mobile-nav-link {
    font-family: var(--font-display);
    font-size: 1.8rem;
    font-weight: 600;
    color: var(--text-secondary);
    transition: all var(--transition-fast);
    padding: 8px 0;
}

.mobile-nav-link:hover {
    color: var(--accent-primary);
    transform: translateX(8px);
}

/* =============================================
   HERO SECTION
   ============================================= */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: calc(var(--nav-height) + 40px) 0 60px;
    position: relative;
    z-index: 2;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -30%;
    right: -20%;
    width: 700px;
    height: 700px;
    background: radial-gradient(circle, rgba(129, 140, 248, 0.08) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
}

.hero::after {
    content: '';
    position: absolute;
    bottom: -20%;
    left: -15%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(167, 139, 250, 0.06) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
}

.hero .container {
    display: none;
}

.hero-content {
    flex: 1;
    max-width: 620px;
    z-index: 2;
}

.hero {
    display: flex;
    align-items: center;
    padding-left: var(--container-padding);
    padding-right: var(--container-padding);
    gap: 60px;
    max-width: var(--container-max);
    margin: 0 auto;
    width: 100%;
    flex-wrap: wrap;
    justify-content: center;
}

/* Hero Badge */
.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 8px 20px;
    border-radius: var(--radius-full);
    background: rgba(129, 140, 248, 0.1);
    border: 1px solid rgba(129, 140, 248, 0.2);
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--accent-primary);
    margin-bottom: 28px;
    animation: fadeInUp 0.8s ease 0.2s both;
}

.badge-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #34d399;
    animation: pulse-dot 2s ease-in-out infinite;
}

@keyframes pulse-dot {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(1.3); }
}

/* Hero Title */
.hero-title {
    font-family: var(--font-display);
    font-size: clamp(2.5rem, 5vw, 3.8rem);
    font-weight: 800;
    line-height: 1.15;
    margin-bottom: 20px;
    animation: fadeInUp 0.8s ease 0.4s both;
}

.hero-greeting {
    display: block;
    font-size: clamp(1rem, 2vw, 1.2rem);
    font-weight: 400;
    color: var(--text-secondary);
    margin-bottom: 8px;
    letter-spacing: 1px;
    text-transform: uppercase;
}

.hero-name {
    display: inline;
}

.name-letter {
    display: inline-block;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    transition: transform 0.3s ease;
    animation: letterFloat 0.6s ease calc(var(--i) * 0.06s + 0.5s) both;
}

.name-letter:hover {
    transform: translateY(-6px) scale(1.1);
}

.name-space {
    display: inline-block;
    width: 16px;
}

@keyframes letterFloat {
    0% { opacity: 0; transform: translateY(30px) rotate(10deg); }
    100% { opacity: 1; transform: translateY(0) rotate(0deg); }
}

/* Typewriter */
.hero-typewriter {
    font-family: var(--font-mono);
    font-size: clamp(1rem, 2vw, 1.3rem);
    color: var(--text-secondary);
    margin-bottom: 24px;
    display: flex;
    align-items: center;
    animation: fadeInUp 0.8s ease 0.6s both;
}

.typewriter-prefix {
    color: var(--text-tertiary);
}

.typewriter-text {
    color: var(--accent-primary);
    font-weight: 500;
}

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

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

/* Hero Description */
.hero-description {
    font-size: 1.05rem;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 36px;
    max-width: 540px;
    animation: fadeInUp 0.8s ease 0.8s both;
}

.hero-description strong {
    color: var(--text-primary);
    font-weight: 600;
}

/* Hero Buttons */
.hero-actions {
    display: flex;
    gap: 16px;
    margin-bottom: 48px;
    flex-wrap: wrap;
    animation: fadeInUp 0.8s ease 1s both;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 32px;
    border-radius: var(--radius-full);
    font-size: 0.95rem;
    font-weight: 600;
    transition: all var(--transition-fast);
    position: relative;
    overflow: hidden;
}

.btn svg {
    width: 18px;
    height: 18px;
    transition: transform var(--transition-fast);
}

.btn-primary {
    background: var(--accent-gradient);
    color: #fff;
    box-shadow: 0 4px 20px rgba(99, 102, 241, 0.35);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 30px rgba(99, 102, 241, 0.5);
}

.btn-primary:hover svg {
    transform: translate(3px, 3px);
}

.btn-outline {
    border: 1px solid var(--border-hover);
    color: var(--text-primary);
    background: var(--bg-glass);
    backdrop-filter: blur(8px);
}

.btn-outline:hover {
    border-color: var(--accent-primary);
    background: rgba(129, 140, 248, 0.08);
    transform: translateY(-3px);
}

.btn-outline:hover svg {
    transform: translateX(4px);
}

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

/* Hero Stats */
.hero-stats {
    display: flex;
    align-items: center;
    gap: 32px;
    animation: fadeInUp 0.8s ease 1.2s both;
}

.stat-item {
    text-align: center;
}

.stat-number {
    display: block;
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 800;
    color: var(--text-primary);
}

.stat-plus {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--accent-primary);
}

.stat-label {
    display: block;
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--text-tertiary);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-top: 2px;
}

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

/* Hero Visual — Code Window */
.hero-visual {
    flex: 1;
    max-width: 480px;
    z-index: 2;
    animation: fadeInUp 0.8s ease 0.6s both;
}

.code-window {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    overflow: hidden;
    box-shadow: var(--shadow-lg), var(--shadow-glow);
    transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.code-window:hover {
    transform: translateY(-6px) rotateX(1deg);
    box-shadow: var(--shadow-lg), 0 0 60px rgba(129, 140, 248, 0.2);
}

.code-header {
    display: flex;
    align-items: center;
    padding: 14px 18px;
    background: rgba(255, 255, 255, 0.02);
    border-bottom: 1px solid var(--border-color);
}

.code-dots {
    display: flex;
    gap: 8px;
    margin-right: 16px;
}

.dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.dot-red { background: #ff5f57; }
.dot-yellow { background: #febc2e; }
.dot-green { background: #28c840; }

.code-filename {
    font-family: var(--font-mono);
    font-size: 0.78rem;
    color: var(--text-tertiary);
}

.code-body {
    padding: 20px 22px;
    font-family: var(--font-mono);
    font-size: 0.82rem;
    line-height: 1.9;
    overflow-x: auto;
}

.code-body pre {
    margin: 0;
}

.code-body code {
    font-family: var(--font-mono);
}

.code-keyword { color: #c792ea; }
.code-variable { color: #82aaff; }
.code-property { color: #c3e88d; }
.code-string { color: #c3e88d; }
.code-method { color: #82aaff; }

/* Scroll Indicator */
.hero-scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    color: var(--text-tertiary);
    font-size: 0.75rem;
    letter-spacing: 2px;
    text-transform: uppercase;
    animation: fadeInUp 0.8s ease 1.5s both;
}

.scroll-line {
    width: 1px;
    height: 40px;
    background: linear-gradient(to bottom, var(--accent-primary), transparent);
    animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {
    0%, 100% { transform: scaleY(1); opacity: 1; }
    50% { transform: scaleY(0.5); opacity: 0.4; }
}

/* =============================================
   SECTION COMMON
   ============================================= */
.section {
    padding: 100px 0;
    position: relative;
    z-index: 2;
}

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

.section-tag {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--accent-primary);
    letter-spacing: 1px;
    display: block;
    margin-bottom: 12px;
    opacity: 0.8;
}

.section-title {
    font-family: var(--font-display);
    font-size: clamp(2rem, 4vw, 2.8rem);
    font-weight: 800;
    margin-bottom: 12px;
}

.section-subtitle {
    font-size: 1.05rem;
    color: var(--text-secondary);
    max-width: 500px;
    margin: 0 auto;
}

/* =============================================
   ABOUT SECTION
   ============================================= */
.about-grid {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 60px;
    align-items: center;
}

.about-text p {
    color: var(--text-secondary);
    margin-bottom: 18px;
    font-size: 1rem;
    line-height: 1.85;
}

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

.about-info-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-top: 32px;
}

.info-card {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 16px 20px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.info-card:hover {
    border-color: var(--border-hover);
    background: var(--bg-glass-hover);
    transform: translateY(-3px);
}

.info-icon {
    width: 20px;
    height: 20px;
    color: var(--accent-primary);
    flex-shrink: 0;
}

.info-label {
    display: block;
    font-size: 0.72rem;
    font-weight: 500;
    color: var(--text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.info-value {
    display: block;
    font-size: 0.88rem;
    font-weight: 500;
    color: var(--text-primary);
}

/* About — Tech Orbit */
.about-visual {
    display: flex;
    align-items: center;
    justify-content: center;
}

.tech-orbit {
    position: relative;
    width: 340px;
    height: 340px;
}

.orbit-center {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: var(--bg-card);
    border: 2px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    box-shadow: var(--shadow-glow);
    z-index: 3;
}

.orbit-ring {
    position: absolute;
    top: 50%;
    left: 50%;
    border-radius: 50%;
    border: 1px dashed rgba(129, 140, 248, 0.15);
}

.orbit-ring-1 {
    width: 200px;
    height: 200px;
    margin: -100px 0 0 -100px;
    animation: orbitSpin 20s linear infinite;
}

.orbit-ring-2 {
    width: 300px;
    height: 300px;
    margin: -150px 0 0 -150px;
    animation: orbitSpin 30s linear infinite reverse;
}

.orbit-item {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 44px;
    height: 44px;
    margin: -22px 0 0 -22px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    transform: rotate(var(--angle)) translateX(calc(50% + 56px)) rotate(calc(-1 * var(--angle)));
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.orbit-ring-1 .orbit-item {
    transform: rotate(var(--angle)) translateX(100px) rotate(calc(-1 * var(--angle)));
}

.orbit-ring-2 .orbit-item {
    transform: rotate(var(--angle)) translateX(150px) rotate(calc(-1 * var(--angle)));
}

/* counter-rotate items so emojis stay upright */
.orbit-ring-1 .orbit-item {
    animation: orbitCounter 20s linear infinite;
}
.orbit-ring-2 .orbit-item {
    animation: orbitCounter 30s linear infinite reverse;
}

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

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

.orbit-item:hover {
    box-shadow: var(--shadow-glow);
    transform: scale(1.15);
    z-index: 4;
}

/* =============================================
   SKILLS SECTION
   ============================================= */
.skills-categories {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(min(100%, 340px), 1fr));
    gap: 24px;
}

.skill-category {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 28px;
    transition: all var(--transition-base);
}

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

.category-header {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-bottom: 20px;
}

.category-icon {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-sm);
    background: rgba(129, 140, 248, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent-primary);
}

.category-icon svg {
    width: 20px;
    height: 20px;
}

.category-title {
    font-family: var(--font-display);
    font-size: 1.1rem;
    font-weight: 600;
}

.skill-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.skill-tag {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: var(--bg-glass);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-full);
    font-size: 0.82rem;
    font-weight: 500;
    color: var(--text-secondary);
    transition: all var(--transition-fast);
}

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

.skill-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--dot-color);
    flex-shrink: 0;
}

/* =============================================
   PROJECTS SECTION
   ============================================= */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(min(100%, 360px), 1fr));
    gap: 28px;
}

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

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

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

.project-image {
    position: relative;
    overflow: hidden;
    aspect-ratio: 16/10;
}

.project-featured .project-image {
    aspect-ratio: auto;
    min-height: 300px;
}

.project-image-placeholder {
    width: 100%;
    height: 100%;
    background: var(--gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform var(--transition-slow);
}

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

.project-placeholder-icon {
    width: 56px;
    height: 56px;
    color: rgba(255, 255, 255, 0.6);
}

.project-overlay {
    position: absolute;
    inset: 0;
    background: rgba(10, 10, 15, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity var(--transition-fast);
}

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

.project-links {
    display: flex;
    gap: 12px;
}

.project-link-btn {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--bg-card);
    border: 1px solid var(--border-hover);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-primary);
    transition: all var(--transition-fast);
    transform: translateY(20px);
}

.project-card:hover .project-link-btn {
    transform: translateY(0);
}

.project-link-btn:hover {
    background: var(--accent-primary);
    border-color: var(--accent-primary);
}

.project-link-btn svg {
    width: 20px;
    height: 20px;
}

.project-info {
    padding: 28px;
}

.project-year {
    font-family: var(--font-mono);
    font-size: 0.78rem;
    color: var(--accent-primary);
    margin-bottom: 10px;
    letter-spacing: 1px;
}

.project-title {
    font-family: var(--font-display);
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 12px;
    line-height: 1.3;
}

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

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

.tech-badge {
    padding: 4px 12px;
    background: rgba(129, 140, 248, 0.08);
    border: 1px solid rgba(129, 140, 248, 0.15);
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--accent-primary);
    font-family: var(--font-mono);
}

/* =============================================
   EDUCATION SECTION
   ============================================= */
.education-timeline {
    max-width: 720px;
    margin: 0 auto;
    position: relative;
}

.timeline-item {
    display: flex;
    gap: 32px;
    margin-bottom: 40px;
    position: relative;
}

.timeline-item:last-child {
    margin-bottom: 0;
}

.timeline-marker {
    display: flex;
    flex-direction: column;
    align-items: center;
    flex-shrink: 0;
}

.marker-dot {
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--accent-gradient);
    box-shadow: 0 0 16px rgba(129, 140, 248, 0.35);
    z-index: 2;
    flex-shrink: 0;
}

.marker-line {
    width: 2px;
    flex: 1;
    background: linear-gradient(to bottom, var(--accent-primary), transparent);
    margin-top: 8px;
}

.timeline-card {
    flex: 1;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 28px;
    transition: all var(--transition-base);
}

.timeline-card:hover {
    border-color: var(--border-hover);
    transform: translateX(8px);
    box-shadow: var(--shadow-md);
}

.timeline-badge {
    display: inline-block;
    padding: 4px 14px;
    background: rgba(129, 140, 248, 0.1);
    border: 1px solid rgba(129, 140, 248, 0.2);
    border-radius: var(--radius-full);
    font-family: var(--font-mono);
    font-size: 0.78rem;
    font-weight: 500;
    color: var(--accent-primary);
    margin-bottom: 14px;
}

.timeline-title {
    font-family: var(--font-display);
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 8px;
}

.timeline-institution {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 16px;
}

.timeline-institution svg {
    width: 16px;
    height: 16px;
    color: var(--text-tertiary);
}

.timeline-details p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 12px;
}

.timeline-details strong {
    color: var(--text-primary);
}

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

.coursework-tags span {
    padding: 4px 14px;
    background: var(--bg-glass);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-full);
    font-size: 0.78rem;
    font-weight: 500;
    color: var(--text-secondary);
    transition: all var(--transition-fast);
}

.coursework-tags span:hover {
    border-color: var(--border-hover);
    color: var(--text-primary);
}

.score-highlights-row {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 16px;
}

.score-highlight {
    display: inline-flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    padding: 12px 20px;
    background: rgba(129, 140, 248, 0.08);
    border: 1px solid rgba(129, 140, 248, 0.15);
    border-radius: var(--radius-md);
}

.score-label {
    font-size: 0.82rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.score-value {
    font-family: var(--font-display);
    font-size: 1.3rem;
    font-weight: 800;
    color: var(--accent-primary);
}

/* =============================================
   CERTIFICATIONS SECTION
   ============================================= */
.cert-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(min(100%, 260px), 1fr));
    gap: 24px;
}

.cert-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 32px 24px;
    text-align: center;
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.cert-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--accent-gradient);
    opacity: 0;
    transition: opacity var(--transition-fast);
}

.cert-card:hover {
    border-color: var(--border-hover);
    transform: translateY(-6px);
    box-shadow: var(--shadow-md);
}

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

.cert-icon-wrapper {
    width: 56px;
    height: 56px;
    border-radius: var(--radius-md);
    background: rgba(var(--cert-color), 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 18px;
    position: relative;
}

.cert-icon-wrapper::after {
    content: '';
    position: absolute;
    inset: -4px;
    border-radius: var(--radius-md);
    background: linear-gradient(135deg, var(--cert-color), transparent);
    opacity: 0.15;
    z-index: -1;
}

.cert-icon {
    width: 26px;
    height: 26px;
    color: var(--cert-color);
}

.cert-title {
    font-family: var(--font-display);
    font-size: 1.05rem;
    font-weight: 700;
    margin-bottom: 10px;
}

.cert-description {
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 16px;
}

.cert-badge-tag {
    display: inline-block;
    padding: 4px 14px;
    background: var(--bg-glass);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-full);
    font-size: 0.72rem;
    font-weight: 600;
    color: var(--text-tertiary);
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* =============================================
   CONTACT SECTION
   ============================================= */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: start;
}

.contact-cta h3 {
    font-family: var(--font-display);
    font-size: 1.6rem;
    font-weight: 700;
    margin-bottom: 12px;
}

.contact-cta p {
    font-size: 1rem;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 32px;
}

.contact-methods {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.contact-method-card {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 16px 20px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.contact-method-card:hover {
    border-color: var(--border-hover);
    background: var(--bg-glass-hover);
    transform: translateX(8px);
}

.method-icon {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-sm);
    background: rgba(129, 140, 248, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent-primary);
    flex-shrink: 0;
}

.method-icon svg {
    width: 18px;
    height: 18px;
}

.method-info {
    flex: 1;
}

.method-label {
    display: block;
    font-size: 0.72rem;
    font-weight: 500;
    color: var(--text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.method-value {
    display: block;
    font-size: 0.88rem;
    font-weight: 500;
    color: var(--text-primary);
}

.method-arrow {
    width: 16px;
    height: 16px;
    color: var(--text-tertiary);
    transition: all var(--transition-fast);
}

.contact-method-card:hover .method-arrow {
    color: var(--accent-primary);
    transform: translate(3px, -3px);
}

/* Contact Form */
.contact-form {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 32px;
}

.form-group {
    margin-bottom: 20px;
}

.form-label {
    display: block;
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 8px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.form-input {
    width: 100%;
    padding: 14px 18px;
    background: var(--bg-glass);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-family: var(--font-primary);
    font-size: 0.92rem;
    transition: all var(--transition-fast);
    outline: none;
}

.form-input::placeholder {
    color: var(--text-tertiary);
}

.form-input:focus {
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px rgba(129, 140, 248, 0.15);
    background: rgba(129, 140, 248, 0.03);
}

.form-textarea {
    resize: vertical;
    min-height: 120px;
}

/* =============================================
   FOOTER
   ============================================= */
.footer {
    border-top: 1px solid var(--border-color);
    padding: 48px 0 32px;
    position: relative;
    z-index: 2;
}

.footer-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 32px;
}

.footer-logo {
    font-family: var(--font-mono);
    font-size: 1.2rem;
    font-weight: 600;
}

.footer-tagline {
    font-size: 0.88rem;
    color: var(--text-tertiary);
    margin-top: 8px;
}

.footer-socials {
    display: flex;
    gap: 12px;
}

.social-link {
    width: 42px;
    height: 42px;
    border-radius: 50%;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    transition: all var(--transition-fast);
}

.social-link:hover {
    border-color: var(--accent-primary);
    color: var(--accent-primary);
    transform: translateY(-3px);
    box-shadow: 0 4px 16px rgba(129, 140, 248, 0.2);
}

.social-link svg {
    width: 20px;
    height: 20px;
    display: block;
    stroke-width: 2px;
}

.footer-bottom {
    text-align: center;
    padding-top: 24px;
    border-top: 1px solid var(--border-color);
}

.footer-bottom p {
    font-size: 0.82rem;
    color: var(--text-tertiary);
}

/* =============================================
   ANIMATIONS
   ============================================= */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Reveal-on-scroll animation */
.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}

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

/* =============================================
   RESPONSIVE
   ============================================= */
@media (max-width: 1024px) {
    .hero {
        flex-direction: column;
        text-align: center;
        padding-top: calc(var(--nav-height) + 30px);
        gap: 40px;
    }

    .hero-content {
        max-width: 600px;
        display: flex;
        flex-direction: column;
        align-items: center;
    }

    .hero-description {
        text-align: center;
    }

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

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

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

    .hero-visual {
        max-width: 420px;
    }

    .about-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .about-visual {
        order: -1;
    }

    .tech-orbit {
        width: 280px;
        height: 280px;
    }

    .project-card.project-featured {
        grid-template-columns: 1fr;
    }

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

@media (max-width: 768px) {
    :root {
        --container-padding: 20px;
    }

    .nav-links,
    .nav-cta {
        display: none;
    }

    .mobile-toggle {
        display: flex;
    }

    .section {
        padding: 72px 0;
    }

    .section-header {
        margin-bottom: 40px;
    }

    .hero-visual {
        display: none;
    }

    .hero-scroll-indicator {
        display: none;
    }

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

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

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

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

    .footer-content {
        flex-direction: column;
        text-align: center;
        gap: 24px;
    }

    .timeline-item {
        gap: 20px;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2.2rem;
    }

    .hero-stats {
        gap: 20px;
    }

    .stat-number {
        font-size: 1.6rem;
    }

    .tech-orbit {
        transform: scale(0.85); /* scale down inner orbit loops completely on very small phones */
    }

    .timeline-card {
        padding: 20px;
    }

    .btn {
        padding: 12px 24px;
        font-size: 0.88rem;
    }
}