/* ============================================
   TekoraAI — Clean Rebuild
   ============================================ */

/* ===========================================
   1. CUSTOM PROPERTIES
   =========================================== */
:root {
    /* Colors — Dark (default) */
    --bg-primary: #050a18;
    --bg-secondary: #0a1128;
    --bg-card: #0f1a36;
    --accent: #38bdf8;
    --accent-secondary: #818cf8;
    --accent-glow: rgba(56, 189, 248, 0.2);
    --text-primary: #edf2f7;
    --text-secondary: #8b9dc3;
    --text-muted: #5a6d8a;
    --border-color: rgba(255, 255, 255, 0.07);
    --border-hover: rgba(56, 189, 248, 0.3);
    --icon-box-bg: rgba(56, 189, 248, 0.1);
    --nav-bg: rgba(5, 10, 24, 0.65);
    --nav-bg-scrolled: rgba(5, 10, 24, 0.95);
    --mobile-menu-bg: rgba(5, 10, 24, 0.98);
    --input-bg: rgba(255, 255, 255, 0.04);
    --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.25);
    --shadow-glow: 0 0 30px rgba(56, 189, 248, 0.1);

    /* Layout */
    --container-max: 1200px;
    --nav-height: 72px;
    --section-py: 96px;
    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 24px;
    --radius-xl: 40px;

    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-display: 'Outfit', var(--font-primary);

    /* Motion */
    --ease: cubic-bezier(0.4, 0, 0.2, 1);
    --duration-fast: 0.2s;
    --duration-base: 0.35s;
    --duration-slow: 0.6s;
}

/* Light mode */
[data-theme="light"] {
    --bg-primary: #f7f9fc;
    --bg-secondary: #eef2f7;
    --bg-card: #ffffff;
    --accent: #0284c7;
    --accent-secondary: #6366f1;
    --accent-glow: rgba(2, 132, 199, 0.15);
    --text-primary: #0d1b2a;
    --text-secondary: #4a5c72;
    --text-muted: #6b7f96;
    --border-color: rgba(0, 0, 0, 0.08);
    --border-hover: rgba(2, 132, 199, 0.3);
    --icon-box-bg: rgba(2, 132, 199, 0.08);
    --nav-bg: rgba(247, 249, 252, 0.7);
    --nav-bg-scrolled: rgba(247, 249, 252, 0.95);
    --mobile-menu-bg: rgba(247, 249, 252, 0.98);
    --input-bg: rgba(0, 0, 0, 0.03);
    --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.06);
    --shadow-glow: 0 0 30px rgba(2, 132, 199, 0.06);
}

/* ===========================================
   2. RESET & BASE
   =========================================== */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
    font-size: 16px;
}

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

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }

.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 24px;
}

.sr-only {
    position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
    overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}

/* ===========================================
   3. SCROLL REVEAL
   =========================================== */
.reveal {
    opacity: 0;
    transform: translateY(32px);
    transition: opacity var(--duration-slow) var(--ease), transform var(--duration-slow) var(--ease);
}
.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; }

/* Section highlight (on nav click) */
@keyframes card-glow {
    0%   { border-color: var(--border-color); }
    30%  { border-color: var(--accent); box-shadow: 0 0 20px var(--accent-glow); }
    100% { border-color: var(--border-color); box-shadow: none; }
}
section.highlight .intern-main,
section.highlight .intern-card { animation: card-glow 1.5s ease; }

/* ===========================================
   4. THEME TOGGLE
   =========================================== */
.theme-toggle {
    position: relative;
    width: 52px; height: 28px;
    border-radius: 50px;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid var(--border-color);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 6px;
    transition: background var(--duration-base), border-color var(--duration-base);
    z-index: 1001;
    flex-shrink: 0;
}
.theme-toggle:hover { border-color: var(--accent); }

.theme-toggle .toggle-icon { width: 16px; height: 16px; color: var(--text-muted); flex-shrink: 0; }
.theme-toggle .icon-moon { opacity: 1; }
.theme-toggle .icon-sun { opacity: 0.4; }
[data-theme="light"] .theme-toggle .icon-sun { opacity: 1; color: #f59e0b; }
[data-theme="light"] .theme-toggle .icon-moon { opacity: 0.4; }
[data-theme="light"] .theme-toggle { background: rgba(0, 0, 0, 0.06); }

.theme-toggle .toggle-knob {
    position: absolute; top: 3px; left: 3px;
    width: 20px; height: 20px;
    background: var(--accent); border-radius: 50%;
    transition: transform var(--duration-base);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}
[data-theme="light"] .theme-toggle .toggle-knob {
    transform: translateX(24px);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
}

/* ===========================================
   5. BUTTONS
   =========================================== */
.btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 8px;
    padding: 14px 32px; border: none; border-radius: var(--radius-md);
    font-family: var(--font-primary); font-size: 0.95rem; font-weight: 600;
    cursor: pointer; white-space: nowrap;
    transition: transform var(--duration-fast), box-shadow var(--duration-base), background var(--duration-fast);
}
.btn i { width: 18px; height: 18px; }

.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 30px var(--accent-glow); }

.btn-secondary { background: transparent; color: var(--text-primary); border: 1px solid var(--border-color); }
.btn-secondary:hover { border-color: var(--accent); background: rgba(56, 189, 248, 0.05); transform: translateY(-2px); }

.btn-group { display: flex; gap: 16px; flex-wrap: wrap; }

/* ===========================================
   6. NAVIGATION
   =========================================== */
.navbar {
    position: fixed; top: 0; left: 0; width: 100%; height: var(--nav-height);
    z-index: 1000; display: flex; align-items: center;
    background: var(--nav-bg);
    backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid transparent;
    transition: background var(--duration-base), border-color var(--duration-base), box-shadow var(--duration-base);
}
.navbar.scrolled {
    background: var(--nav-bg-scrolled);
    border-bottom-color: var(--border-color);
    box-shadow: 0 1px 20px rgba(0, 0, 0, 0.3);
}
.navbar .container { display: flex; align-items: center; justify-content: space-between; }

/* Logo */
.logo { display: flex; align-items: center; gap: 12px; z-index: 1001; }
.logo-img {
    height: 48px; width: 48px; object-fit: contain;
    border-radius: 12px; background: #fff; padding: 3px;
    box-shadow: 0 2px 12px var(--accent-glow);
    transition: transform var(--duration-fast), box-shadow var(--duration-fast);
}
.logo:hover .logo-img { transform: scale(1.06); box-shadow: 0 4px 20px var(--accent-glow); }
.logo-text {
    font-family: var(--font-display);
    font-size: 1.45rem; font-weight: 700; letter-spacing: -0.3px;
    color: var(--text-primary);
}

/* Nav links */
.nav-menu { display: flex; align-items: center; gap: 4px; }
.nav-menu a {
    position: relative; padding: 8px 16px;
    font-size: 0.9rem; font-weight: 500; color: var(--text-secondary);
    border-radius: var(--radius-sm);
    transition: color var(--duration-fast), background var(--duration-fast);
}
.nav-menu a:hover, .nav-menu a.active { color: var(--text-primary); background: rgba(255,255,255,0.05); }
[data-theme="light"] .nav-menu a:hover,
[data-theme="light"] .nav-menu a.active { background: rgba(0,0,0,0.04); }
.nav-menu a::after {
    content: ''; position: absolute; bottom: 2px; left: 50%;
    transform: translateX(-50%) scaleX(0); width: 20px; height: 2px;
    background: var(--accent); border-radius: 1px;
    transition: transform var(--duration-fast);
}
.nav-menu a:hover::after, .nav-menu a.active::after { transform: translateX(-50%) scaleX(1); }

.nav-cta { margin-left: 16px; }
.nav-cta .btn-primary { padding: 10px 24px; font-size: 0.85rem; }

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

/* Hamburger */
.hamburger {
    display: none; flex-direction: column; gap: 5px; cursor: pointer;
    z-index: 1001; padding: 8px; background: none; border: none;
}
.hamburger span { display: block; width: 24px; height: 2px; background: var(--text-primary); border-radius: 2px; transition: transform var(--duration-base), opacity var(--duration-fast); }
.hamburger.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.active span:nth-child(2) { opacity: 0; }
.hamburger.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Mobile menu overlay */
.mobile-menu {
    position: fixed; inset: 0; z-index: 999;
    background: var(--mobile-menu-bg);
    backdrop-filter: blur(24px);
    display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 8px;
    opacity: 0; pointer-events: none; transition: opacity var(--duration-base);
}
.mobile-menu.open { opacity: 1; pointer-events: all; }
.mobile-menu a { font-family: var(--font-display); font-size: 1.5rem; font-weight: 600; padding: 14px 24px; color: var(--text-secondary); transition: color var(--duration-fast); }
.mobile-menu a:hover { color: var(--accent); }
.mobile-menu .btn { margin-top: 24px; }

/* ===========================================
   7. HERO
   =========================================== */
.hero {
    position: relative; min-height: 100vh;
    display: flex; align-items: center; justify-content: center;
    padding: calc(var(--nav-height) + 20px) 24px 40px;
    overflow: hidden;
}

/* Background effects */
.hero-bg { position: absolute; inset: 0; z-index: 0; }
.hero-bg::before {
    content: ''; position: absolute; top: -20%; left: 50%; transform: translateX(-50%);
    width: 800px; height: 800px;
    background: radial-gradient(circle, var(--accent-glow) 0%, transparent 65%);
    pointer-events: none;
}
.hero-bg::after {
    content: ''; position: absolute; bottom: -10%; right: -10%;
    width: 500px; height: 500px;
    background: radial-gradient(circle, rgba(129, 140, 248, 0.06) 0%, transparent 65%);
    pointer-events: none;
}
.hero-grid {
    position: absolute; inset: 0;
    background-image:
        linear-gradient(rgba(56, 189, 248, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(56, 189, 248, 0.03) 1px, transparent 1px);
    background-size: 60px 60px;
    mask-image: radial-gradient(circle at center, black 30%, transparent 70%);
    -webkit-mask-image: radial-gradient(circle at center, black 30%, transparent 70%);
    pointer-events: none;
}

/* Split layout */
.hero-split {
    position: relative; z-index: 1;
    display: grid; grid-template-columns: 1.1fr 0.9fr;
    gap: 60px; align-items: center;
    max-width: var(--container-max); width: 100%; margin: 0 auto;
}
.hero-content { text-align: left; }

.hero-badge {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 8px 20px;
    background: var(--icon-box-bg);
    border: 1px solid var(--border-hover);
    border-radius: 50px; font-size: 0.85rem; font-weight: 500;
    color: var(--accent); margin-bottom: 28px;
}
.hero-badge i { width: 16px; height: 16px; }

.hero h1 {
    font-family: var(--font-display);
    font-size: clamp(2.4rem, 5vw, 4rem);
    font-weight: 700; line-height: 1.15; letter-spacing: -1.5px;
    margin-bottom: 20px;
}
.hero h1 .accent {
    background: linear-gradient(135deg, var(--accent), var(--accent-secondary));
    -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}

.hero-description {
    font-size: 1.05rem; color: var(--text-secondary);
    max-width: 520px; margin: 0 0 32px; line-height: 1.7;
}
.hero .btn-group { justify-content: flex-start; }

/* Right side — Logo showcase */
.hero-logo-showcase {
    display: flex; flex-direction: column; align-items: center; gap: 40px; position: relative;
}

.hero-logo-glow {
    position: absolute; top: 50%; left: 50%;
    transform: translate(-50%, -55%);
    width: 380px; height: 380px;
    background: radial-gradient(circle, var(--accent-glow) 0%, rgba(129, 140, 248, 0.08) 40%, transparent 70%);
    border-radius: 50%; pointer-events: none;
    animation: logo-pulse 4s ease-in-out infinite;
}
@keyframes logo-pulse {
    0%, 100% { transform: translate(-50%, -55%) scale(1); opacity: 0.7; }
    50%      { transform: translate(-50%, -55%) scale(1.06); opacity: 1; }
}

.hero-logo-container {
    width: 260px; height: 260px;
    background: var(--icon-box-bg);
    border: 1px solid var(--border-color);
    border-radius: 44px; padding: 24px;
    display: flex; align-items: center; justify-content: center;
    backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
    box-shadow: var(--shadow-card);
    position: relative; z-index: 1;
}
.hero-logo-container img { width: 100%; height: 100%; object-fit: contain; border-radius: 20px; }

[data-theme="light"] .hero-logo-container {
    background: rgba(255, 255, 255, 0.8);
    box-shadow: 0 8px 40px rgba(0, 0, 0, 0.08);
}

.hero-logo-stats { display: flex; gap: 32px; position: relative; z-index: 1; }
.hero-stat { text-align: center; }
.hero-stat .number { font-family: var(--font-display); font-size: 1.8rem; font-weight: 700; color: var(--accent); }
.hero-stat .label { font-size: 0.8rem; color: var(--text-muted); margin-top: 2px; }

/* ===========================================
   8. SECTIONS — Common
   =========================================== */
section {
    padding: var(--section-py) 0;
    padding-bottom: calc(var(--section-py) + 48px);
    position: relative;
    scroll-margin-top: var(--nav-height);
    border-bottom: 1px solid var(--border-color);
}
section:last-of-type { border-bottom: none; }
section:nth-of-type(even) { background: var(--bg-secondary); }

.section-header { text-align: center; margin-bottom: 40px; }
.section-tag {
    display: inline-flex; align-items: center; gap: 6px;
    font-size: 0.8rem; font-weight: 600; text-transform: uppercase;
    letter-spacing: 2px; color: var(--accent); margin-bottom: 14px;
}
.section-tag i { width: 16px; height: 16px; }
.section-header h2 {
    font-family: var(--font-display);
    font-size: clamp(1.8rem, 3.5vw, 2.8rem);
    font-weight: 700; letter-spacing: -1px; margin-bottom: 14px;
}
.section-header p { font-size: 1.05rem; color: var(--text-secondary); max-width: 560px; margin: 0 auto; }

/* Shared card styles */
.icon-box {
    width: 42px; height: 42px;
    display: flex; align-items: center; justify-content: center;
    background: var(--icon-box-bg); border-radius: var(--radius-sm);
    color: var(--accent); margin-bottom: 14px;
}

.check-list { margin-top: 16px; display: flex; flex-direction: column; gap: 10px; }
.check-list li {
    display: flex; align-items: flex-start; gap: 10px;
    color: var(--text-secondary); font-size: 0.92rem;
}
.check-list li i { color: var(--accent); width: 18px; height: 18px; flex-shrink: 0; margin-top: 2px; }

/* ===========================================
   9. ABOUT
   =========================================== */
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }

.about-card {
    background: var(--bg-card); border: 1px solid var(--border-color);
    border-radius: var(--radius-lg); padding: 32px;
    transition: border-color var(--duration-base), transform var(--duration-base), box-shadow var(--duration-base);
}
.about-card:hover { border-color: var(--border-hover); transform: translateY(-4px); box-shadow: var(--shadow-glow); }

.about-card.featured {
    grid-column: 1 / -1;
    display: grid; grid-template-columns: 1fr 1fr; gap: 32px; align-items: center;
}

.about-card h3 { font-family: var(--font-display); font-size: 1.3rem; font-weight: 600; margin-bottom: 10px; }
.about-card p { color: var(--text-secondary); font-size: 0.92rem; line-height: 1.65; }

/* ===========================================
   10. SERVICES
   =========================================== */
.services-showcase { display: grid; grid-template-columns: 1fr 1fr; gap: 48px 40px; }
.service-item { display: flex; flex-direction: column; }

.service-image {
    position: relative; width: 100%; height: 300px;
    border-radius: var(--radius-lg); overflow: hidden; margin-bottom: 24px;
}
.service-image img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.6s var(--ease); }
.service-item:hover .service-image img { transform: scale(1.05); }

.service-image-overlay {
    position: absolute; inset: 0;
    background: linear-gradient(180deg, transparent 50%, rgba(0,0,0,0.35) 100%);
    pointer-events: none;
}

.service-body { padding: 0 4px; }
.service-body h3 { font-family: var(--font-display); font-size: 1.5rem; font-weight: 700; margin-bottom: 10px; letter-spacing: -0.5px; }
.service-body h3.accent-title { color: var(--accent); }
.service-body p { color: var(--text-secondary); font-size: 0.95rem; line-height: 1.7; margin-bottom: 16px; }

.service-link {
    display: inline-flex; align-items: center; gap: 8px;
    font-size: 0.9rem; font-weight: 600; color: var(--accent);
    transition: gap var(--duration-fast);
}
.service-link i { width: 16px; height: 16px; transition: transform var(--duration-fast); }
.service-link:hover { gap: 12px; }
.service-link:hover i { transform: translateX(4px); }

/* ===========================================
   11. TESTIMONIALS
   =========================================== */
.testimonials-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }

.testimonial-card {
    background: var(--bg-card); border: 1px solid var(--border-color);
    border-radius: var(--radius-lg); padding: 32px;
    transition: border-color var(--duration-base), transform var(--duration-base);
}
.testimonial-card:hover { border-color: var(--border-hover); transform: translateY(-4px); }

.testimonial-stars { display: flex; gap: 3px; color: #f59e0b; margin-bottom: 16px; }
.testimonial-stars i { width: 16px; height: 16px; fill: #f59e0b; }

.testimonial-card blockquote {
    font-size: 0.95rem; color: var(--text-secondary);
    line-height: 1.7; margin-bottom: 24px; font-style: italic;
}

.testimonial-author { display: flex; align-items: center; gap: 12px; }
.author-avatar {
    width: 40px; height: 40px; border-radius: 50%;
    background: linear-gradient(135deg, var(--accent), var(--accent-secondary));
    color: #fff; display: flex; align-items: center; justify-content: center;
    font-weight: 700; font-size: 0.85rem; flex-shrink: 0;
}
.author-name { font-weight: 600; font-size: 0.9rem; }
.author-role { font-size: 0.8rem; color: var(--text-muted); }

/* ===========================================
   12. INTERNSHIPS
   =========================================== */
.intern-layout { display: grid; grid-template-columns: 1.2fr 0.8fr; gap: 20px; align-items: start; }

.intern-main {
    background: var(--bg-card); border: 1px solid var(--border-color);
    border-radius: var(--radius-lg); padding: 36px;
    transition: border-color var(--duration-base);
}
.intern-main:hover { border-color: var(--border-hover); }
.intern-main h3 { font-family: var(--font-display); font-size: 1.35rem; font-weight: 600; margin-bottom: 12px; }
.intern-main > p { color: var(--text-secondary); font-size: 0.95rem; margin-bottom: 6px; }
.intern-main .check-list { gap: 8px; }
.intern-main .check-list li { font-size: 0.88rem; }

.intern-sidebar { display: flex; flex-direction: column; gap: 12px; }

.intern-card {
    background: var(--bg-card); border: 1px solid var(--border-color);
    border-radius: var(--radius-lg); padding: 20px; flex: 1;
    transition: border-color var(--duration-base), transform var(--duration-base);
}
.intern-card:hover { border-color: var(--border-hover); transform: translateY(-3px); }
.intern-card h3 { font-family: var(--font-display); font-size: 1rem; font-weight: 600; margin-bottom: 4px; }
.intern-card p { color: var(--text-secondary); font-size: 0.82rem; line-height: 1.5; }
.intern-card .icon-box { width: 36px; height: 36px; margin-bottom: 10px; }

/* ===========================================
   13. TECH STACK / STATS
   =========================================== */
.stats-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; margin-bottom: 64px; }

.stat-card {
    background: var(--bg-card); border: 1px solid var(--border-color);
    border-radius: var(--radius-lg); padding: 28px; text-align: center;
    transition: border-color var(--duration-base), transform var(--duration-base);
}
.stat-card:hover { border-color: var(--border-hover); transform: translateY(-3px); }
.stat-card .stat-number { font-family: var(--font-display); font-size: 2.2rem; font-weight: 700; color: var(--accent); margin-bottom: 4px; }
.stat-card .stat-label { font-size: 0.85rem; color: var(--text-muted); }

/* Tech marquee */
.tech-marquee-wrapper { overflow: hidden; padding: 40px 0; position: relative; }
.tech-marquee-wrapper::before,
.tech-marquee-wrapper::after {
    content: ''; position: absolute; top: 0; bottom: 0; width: 120px; z-index: 2; pointer-events: none;
}
.tech-marquee-wrapper::before { left: 0; background: linear-gradient(90deg, var(--bg-secondary), transparent); }
.tech-marquee-wrapper::after { right: 0; background: linear-gradient(270deg, var(--bg-secondary), transparent); }

.tech-marquee { display: flex; gap: 40px; animation: marquee 30s linear infinite; width: max-content; }
.tech-marquee .tech-item {
    display: flex; align-items: center; gap: 10px;
    padding: 12px 24px; background: var(--bg-card);
    border: 1px solid var(--border-color); border-radius: var(--radius-md);
    font-size: 0.9rem; font-weight: 500; color: var(--text-secondary); white-space: nowrap;
}
.tech-marquee .tech-item i { color: var(--accent); width: 18px; height: 18px; }
@keyframes marquee { 0% { transform: translateX(0); } 100% { transform: translateX(-50%); } }

/* ===========================================
   14. CONTACT
   =========================================== */
.contact-wrapper {
    display: grid; grid-template-columns: 1fr 1fr; gap: 32px;
    background: linear-gradient(145deg, var(--bg-card), var(--bg-secondary));
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl); padding: 36px;
    overflow: hidden; position: relative;
}
.contact-wrapper::before {
    content: ''; position: absolute; top: -100px; right: -100px;
    width: 300px; height: 300px;
    background: radial-gradient(circle, var(--accent-glow) 0%, transparent 65%);
    pointer-events: none;
}

.contact-info h3 { font-family: var(--font-display); font-size: 1.5rem; font-weight: 700; margin-bottom: 10px; }
.contact-info > p { color: var(--text-secondary); font-size: 0.92rem; margin-bottom: 24px; }

.contact-details { display: flex; flex-direction: column; gap: 16px; }
.contact-item { display: flex; align-items: flex-start; gap: 14px; }
.contact-item .icon-box { width: 42px; height: 42px; min-width: 42px; }
.contact-item h4 { font-size: 0.9rem; font-weight: 600; margin-bottom: 3px; }
.contact-item p { color: var(--text-secondary); font-size: 0.88rem; }
.contact-item a { color: var(--text-secondary); text-decoration: underline; text-underline-offset: 3px; }
.contact-item a:hover { color: var(--accent); }

/* Form */
.contact-form { display: flex; flex-direction: column; gap: 12px; }
.form-group { display: flex; flex-direction: column; gap: 6px; }
.form-group label { font-size: 0.8rem; font-weight: 600; color: var(--text-secondary); text-transform: uppercase; letter-spacing: 1px; }
.form-group input,
.form-group textarea,
.form-group select {
    padding: 11px 14px; background: var(--input-bg);
    border: 1px solid var(--border-color); border-radius: var(--radius-sm);
    color: var(--text-primary); font-family: var(--font-primary); font-size: 0.95rem;
    transition: border-color var(--duration-fast), box-shadow var(--duration-fast); outline: none;
}
.form-group input::placeholder, .form-group textarea::placeholder { color: var(--text-muted); }
.form-group input:focus, .form-group textarea:focus, .form-group select:focus {
    border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-glow);
}
.form-group textarea { resize: vertical; min-height: 80px; }
.form-group select {
    appearance: none; cursor: pointer;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%2394a3b8' viewBox='0 0 16 16'%3E%3Cpath d='M8 11L3 6h10l-5 5z'/%3E%3C/svg%3E");
    background-repeat: no-repeat; background-position: right 16px center;
}
.form-group select option { background: var(--bg-card); color: var(--text-primary); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.contact-form .btn { margin-top: 8px; width: 100%; }

/* ===========================================
   15. FOOTER
   =========================================== */
.footer {
    border-top: 1px solid var(--border-color);
    padding: 56px 0 36px; background: var(--bg-primary);
}
.footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1fr; gap: 48px; margin-bottom: 40px; }
.footer-brand .logo { margin-bottom: 14px; }
.footer-brand p { color: var(--text-secondary); font-size: 0.88rem; max-width: 280px; }

.footer-col h4 {
    font-family: var(--font-display); font-size: 0.82rem; font-weight: 600;
    text-transform: uppercase; letter-spacing: 1.5px; color: var(--text-muted); margin-bottom: 18px;
}
.footer-col a { display: block; color: var(--text-secondary); font-size: 0.88rem; padding: 5px 0; transition: color var(--duration-fast); }
.footer-col a:hover { color: var(--accent); }

.footer-bottom {
    display: flex; justify-content: space-between; align-items: center;
    padding-top: 28px; border-top: 1px solid var(--border-color);
    font-size: 0.82rem; color: var(--text-muted);
}

.footer-socials { display: flex; gap: 12px; }
.footer-socials a {
    width: 38px; height: 38px; display: flex; align-items: center; justify-content: center;
    border: 1px solid var(--border-color); border-radius: var(--radius-sm);
    color: var(--text-secondary);
    transition: border-color var(--duration-fast), color var(--duration-fast), background var(--duration-fast);
}
.footer-socials a:hover { border-color: var(--accent); color: var(--accent); background: var(--icon-box-bg); }

/* ===========================================
   16. RESPONSIVE
   =========================================== */
@media (max-width: 1024px) {
    .services-showcase { gap: 36px 28px; }
    .service-image { height: 240px; }
    .stats-row { grid-template-columns: repeat(2, 1fr); }
    .testimonials-grid { grid-template-columns: 1fr 1fr; }
    .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
}

@media (max-width: 768px) {
    :root { --section-py: 64px; }

    .nav-menu, .nav-cta { display: none; }
    .hamburger { display: flex; }

    .hero-split { grid-template-columns: 1fr; gap: 40px; text-align: center; }
    .hero-content { text-align: center; }
    .hero .btn-group { justify-content: center; }
    .hero h1 { letter-spacing: -1px; }
    .hero-logo-container { width: 180px; height: 180px; padding: 20px; border-radius: 32px; }
    .hero-logo-glow { width: 260px; height: 260px; }
    .hero-logo-stats { gap: 24px; }

    .about-grid { grid-template-columns: 1fr; }
    .about-card.featured { grid-column: 1; grid-template-columns: 1fr; }
    .services-showcase { grid-template-columns: 1fr; gap: 40px; }
    .service-image { height: 260px; }
    .testimonials-grid { grid-template-columns: 1fr; }
    .intern-layout { grid-template-columns: 1fr; }
    .stats-row { grid-template-columns: 1fr 1fr; }
    .contact-wrapper { grid-template-columns: 1fr; padding: 28px; }
    .form-row { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; gap: 28px; }
    .footer-bottom { flex-direction: column; gap: 16px; text-align: center; }
    .btn-group { flex-direction: column; align-items: center; }
    .btn-group .btn { width: 100%; max-width: 320px; }
}

@media (max-width: 480px) {
    :root { --section-py: 48px; }
    .container { padding: 0 16px; }
    .stats-row { grid-template-columns: 1fr; }
    .contact-wrapper { padding: 20px; border-radius: var(--radius-lg); }
}

/* ===========================================
   17. THEME TRANSITION (minimal)
   =========================================== */
body,
section,
.navbar,
.footer,
.about-card,
.intern-main,
.intern-card,
.stat-card,
.contact-wrapper,
.testimonial-card,
.mobile-menu,
.tech-marquee .tech-item,
.form-group input,
.form-group textarea,
.form-group select {
    transition: background-color 0.4s ease, color 0.4s ease, border-color 0.4s ease;
}