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

:root {
  --color-primary: #1e40af;
  --color-primary-dark: #1e3a8a;
  --color-primary-light: #3b82f6;
  --color-accent: #0ea5e9;
  --color-bg: #ffffff;
  --color-bg-alt: #f8fafc;
  --color-bg-dark: #0f172a;
  --color-text: #0f172a;
  --color-text-secondary: #64748b;
  --color-text-light: #94a3b8;
  --color-border: #e2e8f0;
  --color-border-light: #f1f5f9;
  --color-success: #10b981;
  --color-danger: #ef4444;
  --color-warning: #f59e0b;
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
  --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.07), 0 2px 4px -2px rgba(0,0,0,0.05);
  --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.08), 0 4px 6px -4px rgba(0,0,0,0.04);
  --shadow-xl: 0 20px 25px -5px rgba(0,0,0,0.08), 0 8px 10px -6px rgba(0,0,0,0.04);
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --max-width: 1200px;
  --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

html { scroll-behavior: smooth; font-size: 16px; }

body {
  font-family: 'Noto Sans Georgian', 'Inter', system-ui, -apple-system, sans-serif;
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a { color: var(--color-primary); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--color-primary-light); }

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

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

/* ===== HEADER ===== */
.header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--color-border-light);
  transition: box-shadow var(--transition);
}
.header.scrolled { box-shadow: var(--shadow-md); }

.header-inner {
  max-width: var(--max-width); margin: 0 auto; padding: 0 24px;
  display: flex; align-items: center; justify-content: space-between;
  height: 72px;
}

.logo {
  display: flex; align-items: center; gap: 10px;
  font-size: 1.35rem; font-weight: 700; color: var(--color-text);
  letter-spacing: -0.02em;
}
.logo-text span { color: var(--color-primary); }
.logo-icon {
  width: 38px; height: 38px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center;
  color: #fff; font-weight: 800; font-size: 0.75rem;
  padding: 4px;
}
.logo-icon svg { width: 100%; height: 100%; }

.nav { display: flex; align-items: center; gap: 4px; }
.nav a {
  padding: 8px 16px; border-radius: var(--radius-sm);
  font-size: 0.9rem; font-weight: 500; color: var(--color-text-secondary);
  transition: all var(--transition);
}
.nav a:hover, .nav a.active {
  color: var(--color-primary); background: rgba(30,64,175,0.06);
}

.mobile-toggle {
  display: none; background: none; border: none; cursor: pointer;
  width: 40px; height: 40px; align-items: center; justify-content: center;
  border-radius: var(--radius-sm);
}
.mobile-toggle:hover { background: var(--color-bg-alt); }
.mobile-toggle svg { width: 24px; height: 24px; color: var(--color-text); }

/* ===== HERO ===== */
.hero {
  padding: 160px 0 100px;
  background: linear-gradient(135deg, #f8fafc 0%, #eef2ff 50%, #f0f9ff 100%);
  position: relative; overflow: hidden;
}
.hero .container { position: relative; }
.hero-canvas {
  position: absolute; top: 0; left: 0; width: 100%; height: 100%;
  pointer-events: none; z-index: 0; opacity: 0.85;
}
@media (max-width: 768px) {
  .hero-canvas { opacity: 0.35; }
}
.hero::before {
  content: ''; position: absolute; top: -50%; right: -20%;
  width: 800px; height: 800px;
  background: radial-gradient(circle, rgba(59,130,246,0.06) 0%, transparent 70%);
  border-radius: 50%;
}
.hero::after {
  content: ''; position: absolute; bottom: -30%; left: -10%;
  width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(14,165,233,0.05) 0%, transparent 70%);
  border-radius: 50%;
}
.hero-content { position: relative; z-index: 1; max-width: 720px; }
.hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 6px 16px; border-radius: 50px;
  background: rgba(30,64,175,0.08); color: var(--color-primary);
  font-size: 0.82rem; font-weight: 600; margin-bottom: 24px;
  letter-spacing: 0.02em;
}
.hero-badge::before {
  content: ''; width: 6px; height: 6px; border-radius: 50%;
  background: var(--color-primary); animation: pulse 2s infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; } 50% { opacity: 0.4; }
}
.hero h1 {
  font-size: clamp(2.2rem, 5vw, 3.4rem); font-weight: 800;
  line-height: 1.15; letter-spacing: -0.03em; margin-bottom: 20px;
  color: var(--color-bg-dark);
}
.hero h1 .gradient-text {
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero p {
  font-size: 1.15rem; color: var(--color-text-secondary);
  line-height: 1.8; margin-bottom: 36px; max-width: 560px;
}
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }

/* ===== BUTTONS ===== */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 12px 28px; border-radius: var(--radius-sm);
  font-size: 0.92rem; font-weight: 600; cursor: pointer;
  border: none; transition: all var(--transition);
  font-family: inherit; line-height: 1.4;
}
.btn-primary {
  background: var(--color-primary); color: #fff;
  box-shadow: 0 2px 8px rgba(30,64,175,0.25);
}
.btn-primary:hover {
  background: var(--color-primary-dark); color: #fff;
  box-shadow: 0 4px 16px rgba(30,64,175,0.3); transform: translateY(-1px);
}
.btn-secondary {
  background: var(--color-bg); color: var(--color-text);
  border: 1.5px solid var(--color-border);
}
.btn-secondary:hover { border-color: var(--color-primary); color: var(--color-primary); }
.btn-danger { background: var(--color-danger); color: #fff; }
.btn-danger:hover { background: #dc2626; color: #fff; }
.btn-sm { padding: 8px 18px; font-size: 0.84rem; }
.btn-icon { padding: 8px; border-radius: var(--radius-sm); }
.btn svg { width: 18px; height: 18px; }

/* ===== SECTIONS ===== */
.section { padding: 100px 0; }
.section-alt { background: var(--color-bg-alt); }
.section-header { text-align: center; margin-bottom: 60px; }
.section-label {
  display: inline-block; font-size: 0.82rem; font-weight: 600;
  color: var(--color-primary); text-transform: uppercase;
  letter-spacing: 0.08em; margin-bottom: 12px;
}
.section-title {
  font-size: clamp(1.8rem, 3vw, 2.4rem); font-weight: 800;
  letter-spacing: -0.02em; color: var(--color-bg-dark);
  margin-bottom: 16px;
}
.section-subtitle {
  font-size: 1.05rem; color: var(--color-text-secondary);
  max-width: 600px; margin: 0 auto; line-height: 1.7;
}

/* ===== ABOUT ===== */
.about-grid {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 80px; align-items: center;
}
.about-content h2 { font-size: 2rem; font-weight: 800; margin-bottom: 20px; letter-spacing: -0.02em; }
.about-content p { color: var(--color-text-secondary); margin-bottom: 16px; line-height: 1.8; }

.stats-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px;
  margin-top: 36px;
}
.stat-card {
  padding: 24px; border-radius: var(--radius-md);
  background: var(--color-bg); border: 1px solid var(--color-border);
  text-align: center;
}
.stat-number {
  font-size: 2rem; font-weight: 800; color: var(--color-primary);
  letter-spacing: -0.03em;
}
.stat-label { font-size: 0.82rem; color: var(--color-text-secondary); margin-top: 4px; }

.about-visual {
  position: relative; padding: 40px;
}
.about-image {
  aspect-ratio: 4 / 3; border-radius: var(--radius-lg);
  overflow: hidden; border: 1px solid var(--color-border);
}
.about-image img {
  width: 100%; height: 100%; object-fit: cover; display: block;
}

/* ===== SERVICES ===== */
.services-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px;
}
.service-card {
  padding: 36px 28px; border-radius: var(--radius-md);
  background: var(--color-bg); border: 1px solid var(--color-border);
  transition: all var(--transition); position: relative; overflow: hidden;
}
.service-card:hover {
  border-color: var(--color-primary-light);
  box-shadow: var(--shadow-lg); transform: translateY(-4px);
}
.service-card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  opacity: 0; transition: opacity var(--transition);
}
.service-card:hover::before { opacity: 1; }
.service-icon {
  width: 52px; height: 52px; border-radius: var(--radius-sm);
  background: linear-gradient(135deg, rgba(30,64,175,0.08), rgba(14,165,233,0.08));
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 20px; transition: all var(--transition);
}
.service-card:hover .service-icon {
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
}
.service-icon svg { width: 24px; height: 24px; color: var(--color-primary); transition: color var(--transition); }
.service-card:hover .service-icon svg { color: #fff; }
.service-card h3 { font-size: 1.08rem; font-weight: 700; margin-bottom: 10px; }
.service-card p { font-size: 0.9rem; color: var(--color-text-secondary); line-height: 1.7; }

/* ===== TECHNOLOGIES ===== */
.tech-grid {
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 32px;
}
.tech-card {
  padding: 44px 40px; border-radius: var(--radius-lg);
  background: var(--color-bg); border: 1px solid var(--color-border);
  display: flex; gap: 28px; align-items: flex-start;
  transition: all var(--transition);
}
.tech-card:hover { box-shadow: var(--shadow-lg); }
.tech-card-image {
  padding: 0; overflow: hidden;
}
.tech-card-image img {
  width: 100%; height: 100%; object-fit: cover; display: block;
  border-radius: var(--radius-lg);
}
.tech-logo {
  width: 72px; height: 72px; border-radius: var(--radius-md);
  background: var(--color-bg-alt); border: 1px solid var(--color-border);
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0; font-weight: 800; font-size: 0.9rem;
  color: var(--color-primary);
}
.tech-info h3 { font-size: 1.2rem; font-weight: 700; margin-bottom: 8px; }
.tech-info p { font-size: 0.9rem; color: var(--color-text-secondary); line-height: 1.7; margin-bottom: 16px; }
.tech-specs { display: flex; flex-wrap: wrap; gap: 8px; }
.tech-spec {
  padding: 4px 12px; border-radius: 50px; font-size: 0.78rem; font-weight: 500;
  background: var(--color-bg-alt); color: var(--color-text-secondary);
  border: 1px solid var(--color-border);
}

/* ===== CONTACT ===== */
.contact-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 48px;
}
.contact-info h2 { font-size: 2rem; font-weight: 800; margin-bottom: 16px; }
.contact-info > p { color: var(--color-text-secondary); margin-bottom: 36px; line-height: 1.8; }
.contact-item {
  display: flex; gap: 16px; align-items: flex-start; margin-bottom: 24px;
}
.contact-icon {
  width: 48px; height: 48px; border-radius: var(--radius-sm);
  background: linear-gradient(135deg, rgba(30,64,175,0.08), rgba(14,165,233,0.08));
  display: flex; align-items: center; justify-content: center; flex-shrink: 0;
}
.contact-icon svg { width: 22px; height: 22px; color: var(--color-primary); }
.contact-text strong { display: block; font-size: 0.92rem; margin-bottom: 2px; }
.contact-text span { font-size: 0.88rem; color: var(--color-text-secondary); }
.contact-text a { color: var(--color-text-secondary); }
.contact-text a:hover { color: var(--color-primary); }

.contact-map {
  border-radius: var(--radius-lg); overflow: hidden;
  border: 1px solid var(--color-border); height: 100%; min-height: 340px;
}
.contact-map iframe { width: 100%; height: 100%; border: none; }

/* ===== FOOTER ===== */
.footer {
  background: var(--color-bg-dark); color: rgba(255,255,255,0.7);
  padding: 60px 0 30px;
}
.footer-inner {
  display: flex; justify-content: space-between; align-items: center;
  padding-bottom: 30px; border-bottom: 1px solid rgba(255,255,255,0.08);
  margin-bottom: 30px;
}
.footer .logo { color: #fff; }
.footer .logo span { color: var(--color-accent); }
.footer-links { display: flex; gap: 24px; }
.footer-links a { color: rgba(255,255,255,0.6); font-size: 0.88rem; }
.footer-links a:hover { color: #fff; }
.footer-bottom {
  display: flex; justify-content: space-between; align-items: center;
  font-size: 0.82rem;
}
.footer-bottom a { color: rgba(255,255,255,0.5); }

/* ===== PROJECTS PAGE ===== */
.page-header {
  padding: 140px 0 60px;
  background: linear-gradient(135deg, #f8fafc 0%, #eef2ff 100%);
}
.page-header h1 {
  font-size: clamp(2rem, 4vw, 2.8rem); font-weight: 800;
  letter-spacing: -0.02em; margin-bottom: 12px;
}
.page-header p { color: var(--color-text-secondary); font-size: 1.05rem; }

.projects-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px;
  padding: 60px 0 100px;
}
.project-card {
  border-radius: var(--radius-md); overflow: hidden;
  border: 1px solid var(--color-border); background: var(--color-bg);
  transition: all var(--transition); cursor: pointer;
  text-decoration: none; color: inherit; display: block;
}
.project-card:hover {
  box-shadow: var(--shadow-xl); transform: translateY(-6px);
  border-color: transparent; color: inherit;
}
.project-card-image {
  aspect-ratio: 16 / 10; background: var(--color-bg-alt);
  overflow: hidden; position: relative;
}
.project-card-image img {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform 0.4s ease;
}
.project-card:hover .project-card-image img { transform: scale(1.05); }
.project-card-image .placeholder-icon {
  position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%);
  color: var(--color-text-light); opacity: 0.3;
}
.project-card-body { padding: 24px; }
.project-card-body h3 { font-size: 1.08rem; font-weight: 700; margin-bottom: 8px; }
.project-card-body p {
  font-size: 0.88rem; color: var(--color-text-secondary); line-height: 1.6;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.project-card-meta {
  padding: 14px 24px; border-top: 1px solid var(--color-border-light);
  display: flex; justify-content: space-between; align-items: center;
  font-size: 0.8rem; color: var(--color-text-light);
}
.project-card-meta .location { display: flex; align-items: center; gap: 4px; }
.project-card-meta .location svg { width: 14px; height: 14px; }

.projects-empty {
  grid-column: 1 / -1; text-align: center; padding: 80px 20px;
  color: var(--color-text-secondary);
}
.projects-empty svg { width: 64px; height: 64px; color: var(--color-border); margin-bottom: 16px; }
.projects-empty h3 { font-size: 1.2rem; margin-bottom: 8px; color: var(--color-text); }

/* ===== PROJECT DETAIL ===== */
.project-hero {
  padding: 120px 0 40px;
  background: var(--color-bg-alt);
}
.project-breadcrumb {
  display: flex; align-items: center; gap: 8px;
  margin-bottom: 24px; font-size: 0.85rem; color: var(--color-text-light);
}
.project-breadcrumb a { color: var(--color-text-secondary); }
.project-breadcrumb svg { width: 14px; height: 14px; }
.project-title { font-size: clamp(1.8rem, 3.5vw, 2.6rem); font-weight: 800; margin-bottom: 16px; }
.project-meta-bar {
  display: flex; gap: 28px; flex-wrap: wrap;
  font-size: 0.88rem; color: var(--color-text-secondary);
}
.project-meta-item { display: flex; align-items: center; gap: 6px; }
.project-meta-item svg { width: 16px; height: 16px; color: var(--color-primary); }

.project-content { padding: 60px 0 100px; }
.project-layout {
  display: grid; grid-template-columns: 2fr 1fr; gap: 48px;
}
.project-section { margin-bottom: 48px; }
.project-section h2 {
  font-size: 1.3rem; font-weight: 700; margin-bottom: 16px;
  padding-bottom: 12px; border-bottom: 2px solid var(--color-border);
}
.project-section p { color: var(--color-text-secondary); line-height: 1.8; }

.project-gallery {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px;
}
.gallery-item {
  aspect-ratio: 1; border-radius: var(--radius-sm);
  overflow: hidden; cursor: pointer; position: relative;
  background: var(--color-bg-alt);
}
.gallery-item img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.3s; }
.gallery-item:hover img { transform: scale(1.08); }
.gallery-item::after {
  content: ''; position: absolute; inset: 0;
  background: rgba(0,0,0,0); transition: background 0.3s;
}
.gallery-item:hover::after { background: rgba(0,0,0,0.1); }

.project-sidebar-card {
  padding: 28px; border-radius: var(--radius-md);
  border: 1px solid var(--color-border); background: var(--color-bg);
  margin-bottom: 24px;
}
.project-sidebar-card h3 { font-size: 1rem; font-weight: 700; margin-bottom: 16px; }
.sidebar-info-item {
  display: flex; justify-content: space-between; padding: 12px 0;
  border-bottom: 1px solid var(--color-border-light);
  font-size: 0.88rem;
}
.sidebar-info-item:last-child { border-bottom: none; }
.sidebar-info-item .label { color: var(--color-text-secondary); }
.sidebar-info-item .value { font-weight: 600; }

/* Potree viewer */
.potree-header {
  display: flex; align-items: center; justify-content: space-between;
  flex-wrap: wrap; gap: 0.75rem; margin-bottom: 1rem;
}
.potree-header h2 { margin-bottom: 0; }
.potree-open-btn {
  display: inline-flex; align-items: center; gap: 0.4rem;
  padding: 0.45rem 1rem; border-radius: var(--radius-sm);
  background: var(--color-primary); color: #fff;
  font-size: 0.85rem; font-weight: 500; text-decoration: none;
  transition: background 0.2s;
}
.potree-open-btn:hover { background: var(--color-primary-dark, #1e3a8a); }
.potree-container {
  width: 100%; aspect-ratio: 16 / 9; border-radius: var(--radius-md);
  overflow: hidden; border: 1px solid var(--color-border);
  background: #1a1a2e;
}
.potree-container iframe { width: 100%; height: 100%; border: none; }
.potree-instructions {
  display: flex; align-items: flex-start; gap: 0.6rem;
  margin-top: 0.75rem; padding: 0.75rem 1rem;
  background: rgba(14, 165, 233, 0.08); border: 1px solid rgba(14, 165, 233, 0.2);
  border-radius: var(--radius-sm); color: var(--color-text-muted);
  font-size: 0.85rem; line-height: 1.5;
}
.potree-instructions svg { flex-shrink: 0; margin-top: 0.1rem; color: var(--color-accent, #0ea5e9); }

/* Lightbox */
.lightbox {
  position: fixed; inset: 0; z-index: 9999;
  background: rgba(0,0,0,0.92); display: none;
  align-items: center; justify-content: center;
  backdrop-filter: blur(8px);
}
.lightbox.active { display: flex; }
.lightbox img {
  max-width: 90vw; max-height: 90vh; object-fit: contain;
  border-radius: var(--radius-sm);
}
.lightbox-close {
  position: absolute; top: 20px; right: 20px;
  background: rgba(255,255,255,0.1); border: none; cursor: pointer;
  width: 44px; height: 44px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  color: #fff; transition: background var(--transition);
}
.lightbox-close:hover { background: rgba(255,255,255,0.2); }
.lightbox-close svg { width: 24px; height: 24px; }
.lightbox-nav {
  position: absolute; top: 50%; transform: translateY(-50%);
  background: rgba(255,255,255,0.1); border: none; cursor: pointer;
  width: 48px; height: 48px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  color: #fff; transition: background var(--transition);
}
.lightbox-nav:hover { background: rgba(255,255,255,0.2); }
.lightbox-prev { left: 20px; }
.lightbox-next { right: 20px; }
.lightbox-nav svg { width: 24px; height: 24px; }

/* ===== ADMIN STYLES ===== */
.admin-login {
  min-height: 100vh; display: flex; align-items: center; justify-content: center;
  background: var(--color-bg-alt);
}
.login-card {
  width: 100%; max-width: 400px; padding: 48px 40px;
  background: var(--color-bg); border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl); border: 1px solid var(--color-border);
}
.login-card .logo { justify-content: center; margin-bottom: 32px; font-size: 1.3rem; }
.login-card h2 { text-align: center; font-size: 1.2rem; margin-bottom: 28px; }

.form-group { margin-bottom: 20px; }
.form-group label {
  display: block; font-size: 0.85rem; font-weight: 600;
  margin-bottom: 6px; color: var(--color-text);
}
.form-input {
  width: 100%; padding: 11px 16px; border-radius: var(--radius-sm);
  border: 1.5px solid var(--color-border); font-size: 0.92rem;
  font-family: inherit; transition: border-color var(--transition);
  background: var(--color-bg); color: var(--color-text);
}
.form-input:focus {
  outline: none; border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(30,64,175,0.08);
}
.form-input::placeholder { color: var(--color-text-light); }
textarea.form-input { min-height: 120px; resize: vertical; line-height: 1.6; }
select.form-input { cursor: pointer; }

.form-error {
  padding: 12px 16px; border-radius: var(--radius-sm);
  background: rgba(239,68,68,0.06); color: var(--color-danger);
  font-size: 0.85rem; margin-bottom: 20px; display: none;
  border: 1px solid rgba(239,68,68,0.15);
}
.form-error.visible { display: block; }

/* Admin Layout */
.admin-layout { display: flex; min-height: 100vh; }
.admin-sidebar {
  width: 260px; background: var(--color-bg-dark); color: #fff;
  padding: 24px 0; position: fixed; top: 0; bottom: 0; left: 0;
  display: flex; flex-direction: column;
}
.admin-sidebar .logo {
  color: #fff; padding: 0 24px; margin-bottom: 36px; font-size: 1.15rem;
}
.admin-sidebar .logo span { color: var(--color-accent); }
.admin-nav { flex: 1; }
.admin-nav a {
  display: flex; align-items: center; gap: 12px;
  padding: 12px 24px; color: rgba(255,255,255,0.6);
  font-size: 0.9rem; transition: all var(--transition);
}
.admin-nav a:hover, .admin-nav a.active {
  color: #fff; background: rgba(255,255,255,0.08);
}
.admin-nav a svg { width: 20px; height: 20px; }
.admin-sidebar-footer { padding: 16px 24px; border-top: 1px solid rgba(255,255,255,0.08); }
.admin-sidebar-footer a {
  display: flex; align-items: center; gap: 8px;
  color: rgba(255,255,255,0.5); font-size: 0.85rem;
}
.admin-sidebar-footer a:hover { color: #fff; }

.admin-main { flex: 1; margin-left: 260px; background: var(--color-bg-alt); }
.admin-header {
  background: var(--color-bg); padding: 20px 32px;
  border-bottom: 1px solid var(--color-border);
  display: flex; justify-content: space-between; align-items: center;
}
.admin-header h1 { font-size: 1.3rem; font-weight: 700; }

.admin-content { padding: 32px; }

/* Admin Table */
.admin-table-card {
  background: var(--color-bg); border-radius: var(--radius-md);
  border: 1px solid var(--color-border); overflow: hidden;
}
.admin-table {
  width: 100%; border-collapse: collapse;
}
.admin-table th {
  text-align: left; padding: 14px 20px;
  font-size: 0.8rem; font-weight: 600; text-transform: uppercase;
  letter-spacing: 0.05em; color: var(--color-text-secondary);
  background: var(--color-bg-alt); border-bottom: 1px solid var(--color-border);
}
.admin-table td {
  padding: 16px 20px; border-bottom: 1px solid var(--color-border-light);
  font-size: 0.9rem; vertical-align: middle;
}
.admin-table tr:last-child td { border-bottom: none; }
.admin-table tr:hover td { background: var(--color-bg-alt); }
.admin-table .thumb {
  width: 56px; height: 42px; border-radius: var(--radius-sm);
  object-fit: cover; background: var(--color-bg-alt);
}
.admin-table .actions { display: flex; gap: 8px; }
.admin-table .badge {
  display: inline-block; padding: 3px 10px; border-radius: 50px;
  font-size: 0.75rem; font-weight: 600;
}
.badge-published { background: rgba(16,185,129,0.1); color: var(--color-success); }
.badge-draft { background: rgba(245,158,11,0.1); color: var(--color-warning); }

/* Admin Form */
.admin-form-card {
  background: var(--color-bg); border-radius: var(--radius-md);
  border: 1px solid var(--color-border); padding: 32px;
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.form-section { margin-bottom: 32px; }
.form-section h3 {
  font-size: 1rem; font-weight: 700; margin-bottom: 20px;
  padding-bottom: 12px; border-bottom: 1px solid var(--color-border);
}
.form-actions {
  display: flex; gap: 12px; justify-content: flex-end;
  padding-top: 24px; border-top: 1px solid var(--color-border);
}

/* File Upload */
.upload-zone {
  border: 2px dashed var(--color-border); border-radius: var(--radius-md);
  padding: 40px; text-align: center; cursor: pointer;
  transition: all var(--transition); background: var(--color-bg-alt);
}
.upload-zone:hover, .upload-zone.dragover {
  border-color: var(--color-primary); background: rgba(30,64,175,0.03);
}
.upload-zone svg { width: 40px; height: 40px; color: var(--color-text-light); margin-bottom: 12px; }
.upload-zone p { font-size: 0.9rem; color: var(--color-text-secondary); }
.upload-zone .browse { color: var(--color-primary); font-weight: 600; cursor: pointer; }
.upload-zone input { display: none; }

.upload-preview { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 16px; }
.upload-preview-item {
  position: relative; width: 100px; height: 80px; border-radius: var(--radius-sm);
  overflow: hidden; border: 1px solid var(--color-border);
}
.upload-preview-item img { width: 100%; height: 100%; object-fit: cover; }
.upload-preview-item .remove {
  position: absolute; top: 4px; right: 4px;
  width: 22px; height: 22px; border-radius: 50%;
  background: rgba(0,0,0,0.6); border: none; cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  color: #fff; font-size: 14px; line-height: 1;
}

/* ===== TOAST ===== */
.toast-container {
  position: fixed; bottom: 24px; right: 24px; z-index: 10000;
  display: flex; flex-direction: column; gap: 8px;
}
.toast {
  padding: 14px 20px; border-radius: var(--radius-sm);
  background: var(--color-bg-dark); color: #fff;
  font-size: 0.88rem; box-shadow: var(--shadow-xl);
  animation: slideIn 0.3s ease; min-width: 280px;
  display: flex; align-items: center; gap: 10px;
}
.toast-success { background: var(--color-success); }
.toast-error { background: var(--color-danger); }
@keyframes slideIn {
  from { transform: translateX(100%); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}

/* ===== LOADING ===== */
.spinner {
  width: 24px; height: 24px; border: 3px solid var(--color-border);
  border-top-color: var(--color-primary); border-radius: 50%;
  animation: spin 0.7s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

.loading-overlay {
  position: fixed; inset: 0; z-index: 9998;
  background: rgba(255,255,255,0.8); display: none;
  align-items: center; justify-content: center;
  backdrop-filter: blur(4px);
}
.loading-overlay.active { display: flex; }

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
  .about-grid { grid-template-columns: 1fr; gap: 40px; }
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .tech-grid { grid-template-columns: 1fr; }
  .projects-grid { grid-template-columns: repeat(2, 1fr); }
  .project-layout { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  .nav { display: none; }
  .nav.open {
    display: flex; flex-direction: column;
    position: absolute; top: 72px; left: 0; right: 0;
    background: var(--color-bg); padding: 16px; gap: 4px;
    border-bottom: 1px solid var(--color-border);
    box-shadow: var(--shadow-lg);
  }
  .mobile-toggle { display: flex; }
  .hero { padding: 130px 0 70px; }
  .hero h1 { font-size: 2rem; }
  .hero-actions { flex-direction: column; }
  .hero-actions .btn { justify-content: center; }
  .section { padding: 70px 0; }
  .services-grid { grid-template-columns: 1fr; }
  .projects-grid { grid-template-columns: 1fr; gap: 20px; }
  .project-gallery { grid-template-columns: repeat(2, 1fr); }
  .stats-grid { grid-template-columns: repeat(3, 1fr); gap: 12px; }
  .stat-card { padding: 16px; }
  .stat-number { font-size: 1.5rem; }
  .form-row { grid-template-columns: 1fr; }
  .footer-inner { flex-direction: column; gap: 24px; text-align: center; }
  .footer-bottom { flex-direction: column; gap: 8px; }

  /* Admin responsive */
  .admin-sidebar { display: none; }
  .admin-main { margin-left: 0; }
}

@media (max-width: 480px) {
  .container { padding: 0 16px; }
  .header-inner { height: 60px; padding: 0 16px; }
  .hero { padding: 110px 0 60px; }
  .hero h1 { font-size: 1.7rem; }
  .project-gallery { grid-template-columns: 1fr 1fr; }
  .project-meta-bar { flex-direction: column; gap: 12px; }
}