/* ===================================
   A'tech Builder - DESIGN SYSTEM
   Premium Dark Theme Portfolio
   =================================== */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=JetBrains+Mono:wght@400;500;600&family=Space+Grotesk:wght@400;500;600;700&display=swap');

/* --- CSS Custom Properties --- */
:root {
    /* Colors */
    --bg-primary: #0a0a0f;
    --bg-secondary: #12121a;
    --bg-tertiary: #1a1a2e;
    --bg-card: rgba(22, 22, 35, 0.8);
    --bg-glass: rgba(255, 255, 255, 0.03);
    --bg-glass-hover: rgba(255, 255, 255, 0.06);

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

    --accent-blue: #3b82f6;
    --accent-purple: #8b5cf6;
    --accent-pink: #ec4899;
    --accent-cyan: #06b6d4;
    --accent-emerald: #10b981;
    --accent-amber: #f59e0b;
    --accent-red: #ef4444;

    --gradient-primary: linear-gradient(135deg, #3b82f6, #8b5cf6, #ec4899);
    --gradient-blue-purple: linear-gradient(135deg, #3b82f6, #8b5cf6);
    --gradient-purple-pink: linear-gradient(135deg, #8b5cf6, #ec4899);
    --gradient-cyan-blue: linear-gradient(135deg, #06b6d4, #3b82f6);
    --gradient-glow: radial-gradient(ellipse at center, rgba(139, 92, 246, 0.15) 0%, transparent 70%);

    --border-subtle: rgba(255, 255, 255, 0.06);
    --border-accent: rgba(139, 92, 246, 0.3);

    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 30px rgba(139, 92, 246, 0.2);

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

    /* Spacing */
    --section-padding: 100px 0;
    --container-max: 1200px;
    --container-padding: 0 24px;

    /* Transitions */
    --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
    --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);

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

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

body {
    font-family: var(--font-primary);
    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;
}

a {
    text-decoration: none;
    color: inherit;
    transition: color 0.3s var(--ease-out);
}

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

ul { list-style: none; }

/* --- Scrollbar --- */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--bg-primary); }
::-webkit-scrollbar-thumb {
    background: linear-gradient(180deg, var(--accent-blue), var(--accent-purple));
    border-radius: 4px;
}

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

.section { padding: var(--section-padding); position: relative; }

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

.section-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 16px;
    background: var(--bg-glass);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-full);
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--accent-purple);
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 16px;
}

.section-title {
    font-family: var(--font-display);
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 16px;
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

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

/* --- Background Effects --- */
.bg-glow {
    position: absolute;
    width: 500px;
    height: 500px;
    border-radius: 50%;
    filter: blur(120px);
    opacity: 0.15;
    pointer-events: none;
    z-index: 0;
}

.bg-glow--blue { background: var(--accent-blue); }
.bg-glow--purple { background: var(--accent-purple); }
.bg-glow--pink { background: var(--accent-pink); }

/* --- Grid Background --- */
.grid-bg {
    position: fixed;
    inset: 0;
    background-image:
        linear-gradient(rgba(255,255,255,0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.02) 1px, transparent 1px);
    background-size: 60px 60px;
    pointer-events: none;
    z-index: 0;
}

/* --- Navbar --- */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 16px 0;
    transition: all 0.4s var(--ease-out);
    backdrop-filter: blur(0px);
}

.navbar.scrolled {
    padding: 10px 0;
    background: rgba(10, 10, 15, 0.85);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-subtle);
}

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

.nav-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 1.3rem;
}

.nav-logo img {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-sm);
}

.nav-logo span {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav-links a {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-secondary);
    position: relative;
    padding: 4px 0;
    transition: color 0.3s var(--ease-out);
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--text-primary);
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    border-radius: 1px;
    transition: width 0.3s var(--ease-out);
}

.nav-links a:hover::after,
.nav-links a.active::after {
    width: 100%;
}

.nav-cta {
    padding: 8px 20px !important;
    background: var(--gradient-blue-purple);
    border-radius: var(--radius-full);
    color: white !important;
    font-weight: 600 !important;
}

.nav-cta::after { display: none !important; }

.nav-cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 20px rgba(139, 92, 246, 0.4);
}

/* Hamburger */
.nav-hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    z-index: 1001;
    padding: 8px;
}

.nav-hamburger span {
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: all 0.3s var(--ease-out);
}

.nav-hamburger.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.nav-hamburger.active span:nth-child(2) { opacity: 0; }
.nav-hamburger.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* --- Hero Section --- */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    padding-top: 80px;
    overflow: hidden;
}

.hero .bg-glow:nth-child(1) { top: -200px; left: -200px; }
.hero .bg-glow:nth-child(2) { bottom: -200px; right: -200px; }

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 20px;
    background: var(--bg-glass);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-full);
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 32px;
    animation: fadeInUp 0.8s var(--ease-out) 0.2s both;
}

.hero-badge .dot {
    width: 8px;
    height: 8px;
    background: var(--accent-emerald);
    border-radius: 50%;
    animation: pulse 2s ease-in-out infinite;
}

.hero-title {
    font-family: var(--font-display);
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 24px;
    animation: fadeInUp 0.8s var(--ease-out) 0.4s both;
}

.hero-title .line { display: block; }

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

.hero-description {
    font-size: 1.15rem;
    color: var(--text-secondary);
    max-width: 650px;
    margin: 0 auto 40px;
    animation: fadeInUp 0.8s var(--ease-out) 0.6s both;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
    animation: fadeInUp 0.8s var(--ease-out) 0.8s both;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 28px;
    border-radius: var(--radius-full);
    font-family: var(--font-primary);
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    border: none;
    transition: all 0.3s var(--ease-out);
}

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

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 30px rgba(139, 92, 246, 0.5);
}

.btn-secondary {
    background: var(--bg-glass);
    color: var(--text-primary);
    border: 1px solid var(--border-subtle);
}

.btn-secondary:hover {
    background: var(--bg-glass-hover);
    border-color: var(--border-accent);
    transform: translateY(-3px);
}

/* Hero Stats */
.hero-stats {
    display: flex;
    justify-content: center;
    gap: 48px;
    margin-top: 64px;
    animation: fadeInUp 0.8s var(--ease-out) 1s both;
}

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

.hero-stat .number {
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-stat .label {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-top: 4px;
}

/* Floating Particles */
.particles-container {
    position: absolute;
    inset: 0;
    z-index: 0;
    overflow: hidden;
}

.particle {
    position: absolute;
    width: 4px;
    height: 4px;
    background: var(--accent-purple);
    border-radius: 50%;
    opacity: 0.3;
    animation: float linear infinite;
}

/* --- About / Team Section --- */
.team-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
}

.team-card {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-xl);
    padding: 40px;
    position: relative;
    overflow: hidden;
    transition: all 0.4s var(--ease-out);
}

.team-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-primary);
    opacity: 0;
    transition: opacity 0.4s var(--ease-out);
}

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

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

.team-card-header {
    display: flex;
    align-items: center;
    gap: 20px;
    margin-bottom: 24px;
}

.team-avatar {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid transparent;
    background: var(--gradient-primary);
    background-origin: border-box;
    background-clip: padding-box, border-box;
    padding: 3px;
}

.team-avatar img {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    object-fit: cover;
}

.team-info h3 {
    font-family: var(--font-display);
    font-size: 1.4rem;
    font-weight: 700;
}

.team-role {
    font-size: 0.9rem;
    color: var(--accent-purple);
    font-weight: 500;
}

.team-bio {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-bottom: 24px;
    line-height: 1.8;
}

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

.team-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--bg-glass);
    border: 1px solid var(--border-subtle);
    color: var(--text-secondary);
    transition: all 0.3s var(--ease-out);
}

.team-link:hover {
    background: var(--gradient-blue-purple);
    border-color: transparent;
    color: white;
    transform: translateY(-3px);
}

/* --- Skills Section --- */
.skills-tabs {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-bottom: 48px;
    flex-wrap: wrap;
}

.skills-tab {
    padding: 10px 24px;
    border-radius: var(--radius-full);
    background: var(--bg-glass);
    border: 1px solid var(--border-subtle);
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s var(--ease-out);
    font-family: var(--font-primary);
}

.skills-tab:hover,
.skills-tab.active {
    background: var(--gradient-blue-purple);
    border-color: transparent;
    color: white;
    transform: translateY(-2px);
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 20px;
}

.skill-card {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    padding: 24px;
    transition: all 0.3s var(--ease-out);
    position: relative;
    overflow: hidden;
}

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

.skill-card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 16px;
}

.skill-icon {
    width: 44px;
    height: 44px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
}

.skill-level {
    font-size: 0.75rem;
    font-weight: 600;
    padding: 4px 10px;
    border-radius: var(--radius-full);
    background: rgba(139, 92, 246, 0.15);
    color: var(--accent-purple);
}

.skill-name {
    font-weight: 600;
    font-size: 1rem;
    margin-bottom: 8px;
}

.skill-bar-track {
    height: 4px;
    background: rgba(255, 255, 255, 0.06);
    border-radius: 2px;
    overflow: hidden;
}

.skill-bar-fill {
    height: 100%;
    background: var(--gradient-primary);
    border-radius: 2px;
    width: 0;
    transition: width 1.5s var(--ease-out);
}

.skill-card[data-visible="true"] .skill-bar-fill {
    width: var(--fill);
}

/* --- Experience Section --- */
.timeline {
    position: relative;
    max-width: 900px;
    margin: 0 auto;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(180deg, var(--accent-blue), var(--accent-purple), var(--accent-pink));
    opacity: 0.3;
}

.timeline-item {
    display: flex;
    align-items: flex-start;
    margin-bottom: 48px;
    position: relative;
}

.timeline-item:nth-child(odd) {
    flex-direction: row-reverse;
    text-align: right;
}

.timeline-item:nth-child(odd) .timeline-content {
    margin-left: 0;
    margin-right: 48px;
}

.timeline-item:nth-child(even) .timeline-content {
    margin-left: 48px;
}

.timeline-dot {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--gradient-primary);
    border: 3px solid var(--bg-primary);
    z-index: 1;
    box-shadow: 0 0 20px rgba(139, 92, 246, 0.4);
}

.timeline-content {
    flex: 1;
    max-width: calc(50% - 48px);
}

.timeline-card {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    padding: 24px;
    transition: all 0.3s var(--ease-out);
}

.timeline-card:hover {
    transform: translateY(-4px);
    border-color: var(--border-accent);
    box-shadow: var(--shadow-glow);
}

.timeline-date {
    font-size: 0.8rem;
    color: var(--accent-purple);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 8px;
}

.timeline-title {
    font-family: var(--font-display);
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 4px;
}

.timeline-company {
    font-size: 0.9rem;
    color: var(--accent-cyan);
    font-weight: 500;
    margin-bottom: 12px;
}

.timeline-desc {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

.timeline-person-badge {
    display: inline-block;
    font-size: 0.7rem;
    font-weight: 600;
    padding: 3px 10px;
    border-radius: var(--radius-full);
    margin-bottom: 8px;
}

.badge-arpit {
    background: rgba(59, 130, 246, 0.15);
    color: var(--accent-blue);
}

.badge-ansh {
    background: rgba(6, 182, 212, 0.15);
    color: var(--accent-cyan);
}

/* --- Projects Section --- */
.projects-filter {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-bottom: 48px;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 8px 20px;
    border-radius: var(--radius-full);
    background: var(--bg-glass);
    border: 1px solid var(--border-subtle);
    color: var(--text-secondary);
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s var(--ease-out);
    font-family: var(--font-primary);
}

.filter-btn:hover,
.filter-btn.active {
    background: var(--gradient-blue-purple);
    border-color: transparent;
    color: white;
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(360px, 1fr));
    gap: 28px;
}

.project-card {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-xl);
    overflow: hidden;
    transition: all 0.4s var(--ease-out);
    position: relative;
}

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

.project-image {
    position: relative;
    height: 220px;
    overflow: hidden;
}

.project-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s var(--ease-out);
}

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

.project-image-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to bottom, transparent 40%, rgba(10, 10, 15, 0.9));
}

.project-badges {
    position: absolute;
    top: 16px;
    left: 16px;
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.project-person-badge {
    font-size: 0.7rem;
    font-weight: 600;
    padding: 4px 10px;
    border-radius: var(--radius-full);
    backdrop-filter: blur(10px);
}

.project-body {
    padding: 24px;
}

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

.project-desc {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 16px;
    line-height: 1.7;
}

.project-tech {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    margin-bottom: 16px;
}

.tech-tag {
    font-size: 0.75rem;
    font-weight: 500;
    padding: 4px 12px;
    border-radius: var(--radius-full);
    background: var(--bg-glass);
    border: 1px solid var(--border-subtle);
    color: var(--text-secondary);
    font-family: var(--font-mono);
}

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

.project-link {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--accent-purple);
    transition: all 0.3s var(--ease-out);
}

.project-link:hover {
    color: var(--accent-pink);
    transform: translateX(4px);
}

/* --- Education Section --- */
.education-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 24px;
}

.education-card {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-xl);
    padding: 32px;
    transition: all 0.3s var(--ease-out);
    position: relative;
    overflow: hidden;
}

.education-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 3px;
    background: var(--gradient-primary);
    opacity: 0;
    transition: opacity 0.3s;
}

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

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

.education-icon {
    width: 50px;
    height: 50px;
    border-radius: var(--radius-md);
    background: var(--gradient-blue-purple);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
    margin-bottom: 16px;
}

.education-degree {
    font-family: var(--font-display);
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 4px;
}

.education-institution {
    font-size: 0.95rem;
    color: var(--accent-cyan);
    font-weight: 500;
    margin-bottom: 4px;
}

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

/* --- Certificates Section --- */
.certs-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 20px;
}

.cert-card {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    padding: 24px;
    display: flex;
    align-items: flex-start;
    gap: 16px;
    transition: all 0.3s var(--ease-out);
}

.cert-card:hover {
    transform: translateY(-4px);
    border-color: var(--border-accent);
    box-shadow: var(--shadow-md);
}

.cert-icon {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-sm);
    background: rgba(245, 158, 11, 0.15);
    color: var(--accent-amber);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    flex-shrink: 0;
}

.cert-info h4 {
    font-size: 0.95rem;
    font-weight: 600;
    margin-bottom: 4px;
}

.cert-info p {
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* --- Contact Section --- */
.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: start;
}

.contact-info {
    padding: 40px;
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-xl);
}

.contact-info h3 {
    font-family: var(--font-display);
    font-size: 1.6rem;
    font-weight: 700;
    margin-bottom: 16px;
}

.contact-info p {
    color: var(--text-secondary);
    margin-bottom: 32px;
    line-height: 1.8;
}

.contact-methods {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.contact-method {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 16px;
    background: var(--bg-glass);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    transition: all 0.3s var(--ease-out);
}

.contact-method:hover {
    border-color: var(--border-accent);
    transform: translateX(4px);
}

.contact-method-icon {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--gradient-blue-purple);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    flex-shrink: 0;
}

.contact-method-text strong {
    display: block;
    font-size: 0.85rem;
    margin-bottom: 2px;
}

.contact-method-text span {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

/* Contact Form */
.contact-form {
    padding: 40px;
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-xl);
}

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

.form-group label {
    display: block;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.form-control {
    width: 100%;
    padding: 14px 18px;
    background: var(--bg-glass);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-family: var(--font-primary);
    font-size: 0.95rem;
    transition: all 0.3s var(--ease-out);
    outline: none;
}

.form-control:focus {
    border-color: var(--accent-purple);
    box-shadow: 0 0 0 3px rgba(139, 92, 246, 0.15);
}

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

.form-submit {
    width: 100%;
    padding: 16px;
    background: var(--gradient-primary);
    border: none;
    border-radius: var(--radius-md);
    color: white;
    font-family: var(--font-primary);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s var(--ease-out);
}

.form-submit:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 30px rgba(139, 92, 246, 0.4);
}

/* --- Footer --- */
.footer {
    padding: 48px 0 24px;
    border-top: 1px solid var(--border-subtle);
    position: relative;
}

.footer-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 24px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 1.1rem;
}

.footer-logo img {
    width: 28px;
    height: 28px;
    border-radius: var(--radius-sm);
}

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

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

.footer-social {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--bg-glass);
    border: 1px solid var(--border-subtle);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    transition: all 0.3s var(--ease-out);
    font-size: 0.85rem;
}

.footer-social:hover {
    background: var(--gradient-blue-purple);
    border-color: transparent;
    color: white;
    transform: translateY(-3px);
}

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

@keyframes pulse {
    0%, 100% { opacity: 0.5; transform: scale(1); }
    50% { opacity: 1; transform: scale(1.5); }
}

@keyframes float {
    0% { transform: translateY(100vh) rotate(0deg); opacity: 0; }
    10% { opacity: 0.3; }
    90% { opacity: 0.3; }
    100% { transform: translateY(-100vh) rotate(720deg); opacity: 0; }
}

@keyframes slideInFromLeft {
    from { opacity: 0; transform: translateX(-40px); }
    to { opacity: 1; transform: translateX(0); }
}

@keyframes slideInFromRight {
    from { opacity: 0; transform: translateX(40px); }
    to { opacity: 1; transform: translateX(0); }
}

@keyframes scaleIn {
    from { opacity: 0; transform: scale(0.9); }
    to { opacity: 1; transform: scale(1); }
}

/* Scroll-triggered animation classes */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s var(--ease-out);
}

.reveal.visible {
    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; }

/* --- Competencies Section --- */
.competencies-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 16px;
}

.competency-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px 20px;
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    transition: all 0.3s var(--ease-out);
}

.competency-item:hover {
    transform: translateY(-3px);
    border-color: var(--border-accent);
    box-shadow: var(--shadow-md);
}

.competency-icon {
    font-size: 1.4rem;
}

.competency-text {
    font-size: 0.9rem;
    font-weight: 500;
}

/* --- Order Project Button --- */
.btn-order {
    background: linear-gradient(135deg, #f59e0b, #ef4444);
    color: white;
    box-shadow: 0 4px 20px rgba(245, 158, 11, 0.3);
    position: relative;
    overflow: hidden;
}

.btn-order::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, #ef4444, #ec4899);
    opacity: 0;
    transition: opacity 0.4s var(--ease-out);
}

.btn-order:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 30px rgba(245, 158, 11, 0.5);
}

.btn-order:hover::before {
    opacity: 1;
}

.btn-order i,
.btn-order span {
    position: relative;
    z-index: 1;
}

/* --- Order Project Modal --- */
.modal-overlay {
    position: fixed;
    inset: 0;
    z-index: 9999;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(12px);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: all 0.4s var(--ease-out);
    padding: 20px;
}

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

.modal-container {
    position: relative;
    width: 100%;
    max-width: 680px;
    max-height: 90vh;
    overflow-y: auto;
    background: var(--bg-secondary);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-xl);
    padding: 48px;
    box-shadow: 0 25px 80px rgba(0, 0, 0, 0.6), 0 0 60px rgba(139, 92, 246, 0.1);
    transform: translateY(30px) scale(0.95);
    transition: transform 0.5s var(--ease-spring);
}

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

/* Modal scrollbar */
.modal-container::-webkit-scrollbar { width: 6px; }
.modal-container::-webkit-scrollbar-track { background: transparent; }
.modal-container::-webkit-scrollbar-thumb {
    background: rgba(139, 92, 246, 0.3);
    border-radius: 3px;
}

/* Modal glows */
.modal-glow {
    position: absolute;
    width: 300px;
    height: 300px;
    border-radius: 50%;
    filter: blur(100px);
    opacity: 0.1;
    pointer-events: none;
}

.modal-glow--1 {
    background: var(--accent-purple);
    top: -100px;
    right: -80px;
}

.modal-glow--2 {
    background: var(--accent-blue);
    bottom: -100px;
    left: -80px;
}

.modal-close {
    position: absolute;
    top: 20px;
    right: 20px;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--bg-glass);
    border: 1px solid var(--border-subtle);
    color: var(--text-secondary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s var(--ease-out);
    z-index: 2;
}

.modal-close:hover {
    background: rgba(239, 68, 68, 0.2);
    border-color: rgba(239, 68, 68, 0.5);
    color: var(--accent-red);
    transform: rotate(90deg);
}

.modal-header {
    text-align: center;
    margin-bottom: 36px;
}

.modal-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 16px;
    background: rgba(245, 158, 11, 0.1);
    border: 1px solid rgba(245, 158, 11, 0.2);
    border-radius: var(--radius-full);
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--accent-amber);
    text-transform: uppercase;
    letter-spacing: 1.5px;
    margin-bottom: 16px;
}

.modal-title {
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 8px;
}

.modal-subtitle {
    font-size: 1rem;
    color: var(--text-secondary);
}

/* Step indicators */
.form-steps {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0;
    margin-bottom: 36px;
}

.form-step {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    position: relative;
}

.step-num {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    border: 2px solid var(--border-subtle);
    background: var(--bg-glass);
    color: var(--text-muted);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.85rem;
    font-weight: 700;
    transition: all 0.4s var(--ease-out);
}

.form-step.active .step-num {
    background: var(--gradient-primary);
    border-color: transparent;
    color: white;
    box-shadow: 0 0 20px rgba(139, 92, 246, 0.4);
}

.step-label {
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--text-muted);
    transition: color 0.3s;
}

.form-step.active .step-label {
    color: var(--text-primary);
}

.form-step-line {
    width: 80px;
    height: 2px;
    background: var(--border-subtle);
    margin: 0 12px;
    margin-bottom: 22px;
    border-radius: 1px;
    position: relative;
    overflow: hidden;
    transition: background 0.4s;
}

.form-step-line::after {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    height: 100%;
    width: 0;
    background: var(--gradient-primary);
    transition: width 0.5s var(--ease-out);
}

.form-step-line.active::after {
    width: 100%;
}

/* Order form steps */
.order-step {
    animation: fadeInUp 0.4s var(--ease-out);
}

.order-step.hidden {
    display: none;
}

.order-label {
    display: block;
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.order-hint {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: 20px;
}

.optional-tag {
    font-weight: 400;
    color: var(--text-muted);
    font-size: 0.8rem;
}

/* Service chips */
.service-chips {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
    margin-bottom: 32px;
}

.service-chip {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px 20px;
    background: var(--bg-card);
    border: 1.5px solid var(--border-subtle);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.3s var(--ease-out);
    font-family: var(--font-primary);
    font-size: 0.9rem;
    font-weight: 500;
    position: relative;
    overflow: hidden;
}

.service-chip::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--gradient-primary);
    opacity: 0;
    transition: opacity 0.3s;
}

.service-chip:hover {
    border-color: var(--border-accent);
    transform: translateY(-2px);
    box-shadow: var(--shadow-sm);
}

.service-chip.selected {
    border-color: var(--accent-purple);
    background: rgba(139, 92, 246, 0.1);
    color: var(--text-primary);
    box-shadow: 0 0 20px rgba(139, 92, 246, 0.15);
}

.service-chip.selected::after {
    content: '✓';
    position: absolute;
    top: 8px;
    right: 12px;
    font-size: 0.75rem;
    color: var(--accent-purple);
    font-weight: 700;
}

.chip-icon {
    font-size: 1.3rem;
    position: relative;
    z-index: 1;
    flex-shrink: 0;
}

.chip-text {
    position: relative;
    z-index: 1;
}

/* Form row for side-by-side inputs */
.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

/* Order specific form control overrides for select */
.order-form select.form-control {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%23a0a0b8' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 14px center;
    padding-right: 44px;
    cursor: pointer;
}

/* Order navigation */
.order-nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: 32px;
    padding-top: 24px;
    border-top: 1px solid var(--border-subtle);
}

.order-next-btn,
.order-back-btn,
.order-submit-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    border-radius: var(--radius-full);
    font-family: var(--font-primary);
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    border: none;
    transition: all 0.3s var(--ease-out);
}

.order-next-btn {
    background: var(--gradient-blue-purple);
    color: white;
    box-shadow: 0 4px 15px rgba(139, 92, 246, 0.3);
}

.order-next-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 25px rgba(139, 92, 246, 0.5);
}

.order-back-btn {
    background: var(--bg-glass);
    color: var(--text-secondary);
    border: 1px solid var(--border-subtle);
}

.order-back-btn:hover {
    color: var(--text-primary);
    border-color: var(--border-accent);
}

.order-submit-btn {
    background: linear-gradient(135deg, #f59e0b, #ef4444);
    color: white;
    box-shadow: 0 4px 15px rgba(245, 158, 11, 0.3);
    font-size: 1rem;
    padding: 14px 32px;
}

.order-submit-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 25px rgba(245, 158, 11, 0.5);
}

/* Shake animation for validation */
@keyframes shake {
    0%, 100% { transform: translateX(0); }
    20% { transform: translateX(-8px); }
    40% { transform: translateX(8px); }
    60% { transform: translateX(-5px); }
    80% { transform: translateX(5px); }
}

/* --- Responsive Design --- */
@media (max-width: 1024px) {
    .team-grid { grid-template-columns: 1fr; }
    .contact-wrapper { grid-template-columns: 1fr; }
    .hero-stats { gap: 32px; }
}

@media (max-width: 768px) {
    .nav-links {
        position: fixed;
        inset: 0;
        background: rgba(10, 10, 15, 0.98);
        backdrop-filter: blur(20px);
        flex-direction: column;
        justify-content: center;
        gap: 24px;
        opacity: 0;
        visibility: hidden;
        transition: all 0.4s var(--ease-out);
    }

    .nav-links.open {
        opacity: 1;
        visibility: visible;
    }

    .nav-links a {
        font-size: 1.2rem;
    }

    .nav-hamburger { display: flex; }

    .hero-title { font-size: clamp(2rem, 8vw, 3rem); }
    .hero-stats { flex-direction: column; gap: 20px; }

    .timeline::before { left: 20px; }
    .timeline-dot { left: 20px; }
    .timeline-item,
    .timeline-item:nth-child(odd) { flex-direction: column; text-align: left; }
    .timeline-item:nth-child(odd) .timeline-content,
    .timeline-item:nth-child(even) .timeline-content {
        margin-left: 52px;
        margin-right: 0;
        max-width: 100%;
    }

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

    .section { padding: 60px 0; }
    .section-header { margin-bottom: 40px; }

    /* Modal responsive */
    .modal-container { padding: 32px 24px; }
    .modal-title { font-size: 1.6rem; }
    .service-chips { grid-template-columns: 1fr; }
    .form-row { grid-template-columns: 1fr; }
    .form-step-line { width: 40px; }
}

@media (max-width: 480px) {
    .hero-buttons { flex-direction: column; align-items: center; }
    .btn { width: 100%; justify-content: center; }
    .competencies-grid { grid-template-columns: 1fr; }
    .modal-container { padding: 24px 16px; }
    .order-nav { flex-direction: column; gap: 12px; }
    .order-nav > * { width: 100%; text-align: center; justify-content: center; }
}