/* ===== CSS Variables - Cyberpunk Theme ===== */
:root {
  /* Let native controls (select dropdowns, scrollbars, autofill) render in
     dark mode — without this, dropdown options appear as light text on a
     white native popup and are unreadable. */
  color-scheme: dark;
  --primary-cyan: #00F0FF;
  --primary-cyan-dark: #00C8D6;
  --primary-orange: #FF6B35;
  --primary-orange-light: #FF8C5A;
  --bg-deep: #0A0E1A;
  --bg-dark: #111827;
  --bg-card: rgba(26, 31, 53, 0.7);
  --bg-card-hover: rgba(37, 42, 64, 0.85);
  --text-primary: #E8ECF1;
  --text-secondary: #B4BCC9;
  --text-muted: #9AA3B2;
  --green: #10B981;
  --red: #EF4444;
  --yellow: #F59E0B;
  --indigo: #6366F1;
  --border-glow: rgba(0, 240, 255, 0.3);
  --border-card: rgba(255, 255, 255, 0.06);
  --shadow-glow: 0 0 20px rgba(0, 240, 255, 0.15);
  --radius: 12px;
  --nav-height: 70px;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: 'PingFang SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--bg-deep);
  color: var(--text-primary);
  line-height: 1.7;
  min-height: 100vh;
  overflow-x: hidden;
}

a { color: var(--primary-cyan); text-decoration: none; transition: color 0.3s; }
a:hover { color: var(--primary-cyan-dark); }

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

/* Native select dropdown options: force dark background + light text so
   they stay readable in every browser. */
select option { background-color: #1A1F35; color: var(--text-primary); }

/* Placeholders must stay readable on dark inputs */
::placeholder { color: #8B93A3; opacity: 1; }

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

/* ===== Navigation ===== */
.navbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  height: var(--nav-height);
  background: rgba(10, 14, 26, 0.8);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-card);
  display: flex; align-items: center;
}

.nav-inner {
  width: 100%; max-width: 100%; margin: 0 auto; padding: 0 40px;
  display: flex; justify-content: space-between; align-items: center;
}

.nav-logo {
  display: flex; align-items: center; gap: 10px;
  font-size: 22px; font-weight: 700; color: var(--text-primary);
  text-shadow: 0 0 20px rgba(0, 240, 255, 0.5), 0 0 40px rgba(0, 240, 255, 0.3);
}

.nav-logo .logo-icon {
  width: 36px; height: 36px; border-radius: 8px;
  background: linear-gradient(135deg, var(--primary-cyan), var(--primary-orange));
  display: flex; align-items: center; justify-content: center;
  font-size: 18px; color: #fff;
}

.nav-links { display: flex; gap: 8px; list-style: none; }
.nav-links a {
  color: var(--text-secondary); padding: 8px 16px; border-radius: 8px;
  font-size: 15px; font-weight: 500; transition: all 0.3s; position: relative;
}
.nav-links a:hover, .nav-links a.active {
  color: var(--primary-cyan); background: rgba(0, 240, 255, 0.08);
}
.nav-links a.active::after {
  content: ''; position: absolute; bottom: 2px; left: 50%; transform: translateX(-50%);
  width: 20px; height: 2px; background: var(--primary-cyan);
  box-shadow: 0 0 10px var(--primary-cyan), 0 0 20px var(--primary-cyan);
}

.hamburger { display: none; flex-direction: column; gap: 5px; cursor: pointer; background: none; border: none; padding: 8px; }
.hamburger span { width: 24px; height: 2px; background: var(--text-primary); border-radius: 2px; transition: 0.3s; }

/* ===== Main Content ===== */
.main-content { position: relative; z-index: 1; padding-top: var(--nav-height); min-height: 100vh; }

/* ===== Hero Section ===== */
.hero {
  position: relative; min-height: calc(100vh - var(--nav-height));
  display: flex; align-items: center; justify-content: center;
  text-align: center; padding: 60px 24px; overflow: hidden;
}
.hero::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; bottom: 0;
  background: radial-gradient(ellipse at center, rgba(0, 240, 255, 0.05) 0%, transparent 70%);
}
.hero-content { position: relative; z-index: 1; max-width: 800px; }
.hero-badge {
  display: inline-block; padding: 6px 20px; border: 1px solid var(--border-glow);
  border-radius: 20px; font-size: 14px; color: var(--primary-cyan);
  margin-bottom: 24px; animation: pulse 2s ease-in-out infinite;
}
.hero h1 {
  font-size: 48px; font-weight: 700; line-height: 1.2; margin-bottom: 20px;
  text-shadow: 0 0 30px rgba(0, 240, 255, 0.4), 0 0 60px rgba(0, 240, 255, 0.2);
  background: linear-gradient(135deg, var(--primary-cyan), #fff 60%, var(--primary-orange));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}
.hero p {
  font-size: 18px; color: var(--text-secondary); margin-bottom: 40px; max-width: 600px; margin-left: auto; margin-right: auto;
}
.hero-buttons { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

/* ===== Buttons ===== */
.btn {
  display: inline-flex; align-items: center; gap: 8px; padding: 12px 28px;
  border-radius: 10px; font-size: 16px; font-weight: 600; cursor: pointer;
  transition: all 0.3s; border: none; position: relative; overflow: hidden;
}
.btn::after {
  content: ''; position: absolute; top: 0; left: -100%; width: 100%; height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.1), transparent);
  transition: left 0.5s;
}
.btn:hover::after { left: 100%; }
.btn-primary {
  background: linear-gradient(135deg, var(--primary-cyan), var(--primary-cyan-dark));
  color: #0A0E1A; box-shadow: 0 4px 20px rgba(0, 240, 255, 0.3);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 6px 30px rgba(0, 240, 255, 0.4); }
.btn-outline {
  background: transparent; color: var(--primary-cyan);
  border: 1px solid var(--border-glow); box-shadow: 0 0 10px rgba(0, 240, 255, 0.1);
}
.btn-outline:hover { background: rgba(0, 240, 255, 0.08); transform: translateY(-2px); }
.btn-orange { background: linear-gradient(135deg, var(--primary-orange), var(--primary-orange-light)); color: #fff; }
.btn-orange:hover { transform: translateY(-2px); box-shadow: 0 6px 30px rgba(255, 107, 53, 0.4); }
.btn-sm { padding: 8px 18px; font-size: 14px; }

/* ===== Section Common ===== */
.section { padding: 80px 40px; position: relative; z-index: 1; }
.section-inner { max-width: 1200px; margin: 0 auto; }
.section-inner.full-width { max-width: 100%; }
.section-title {
  font-size: 32px; font-weight: 700; text-align: center; margin-bottom: 12px;
  color: var(--text-primary);
}
.section-subtitle {
  font-size: 16px; color: var(--text-secondary); text-align: center;
  margin-bottom: 48px; max-width: 600px; margin-left: auto; margin-right: auto;
}

/* ===== Glass Card ===== */
.glass-card {
  background: var(--bg-card); border: 1px solid var(--border-card);
  border-radius: var(--radius); padding: 32px;
  backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
  transition: all 0.3s ease;
}
.glass-card:hover {
  background: var(--bg-card-hover); border-color: var(--border-glow);
  transform: translateY(-4px); box-shadow: var(--shadow-glow);
}

/* ===== Features Grid ===== */
.features-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.feature-card { text-align: center; }
.feature-icon {
  width: 64px; height: 64px; margin: 0 auto 20px; border-radius: 16px;
  display: flex; align-items: center; justify-content: center;
  font-size: 28px; background: rgba(0, 240, 255, 0.1);
  border: 1px solid var(--border-glow);
}
.feature-card h3 { font-size: 20px; margin-bottom: 8px; }
.feature-card p { color: var(--text-secondary); font-size: 14px; }

/* ===== Specs Section ===== */
.specs-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: center; }
.specs-image { display: flex; align-items: center; justify-content: center; }
.specs-image .placeholder-img {
  width: 100%; aspect-ratio: 1; background: linear-gradient(135deg, rgba(0,240,255,0.1), rgba(255,107,53,0.1));
  border-radius: var(--radius); border: 1px solid var(--border-glow);
  display: flex; align-items: center; justify-content: center; font-size: 80px;
}
.specs-list { display: grid; gap: 16px; }
.spec-item {
  display: flex; justify-content: space-between; align-items: center;
  padding: 12px 20px; border-bottom: 1px solid var(--border-card);
}
.spec-label { color: var(--text-secondary); font-size: 14px; }
.spec-value { font-weight: 600; color: var(--primary-cyan); }

/* ===== Product Cards ===== */
.products-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(340px, 1fr)); gap: 28px; }
.product-card { overflow: hidden; padding: 0; }
.product-image {
  width: 100%; aspect-ratio: 16/10; background: linear-gradient(135deg, rgba(0,240,255,0.08), rgba(255,107,53,0.08));
  display: flex; align-items: center; justify-content: center; font-size: 60px;
  border-bottom: 1px solid var(--border-card);
}
.product-info { padding: 24px; }
.product-name { font-size: 20px; font-weight: 700; margin-bottom: 8px; }
.product-desc { color: var(--text-secondary); font-size: 14px; margin-bottom: 16px; }
.product-price { font-size: 24px; font-weight: 700; color: var(--primary-orange); margin-bottom: 16px; }
.product-buttons { display: flex; gap: 10px; flex-wrap: wrap; }
.btn-purchase {
  flex: 1; padding: 10px; border-radius: 8px; font-size: 14px; font-weight: 600;
  text-align: center; cursor: pointer; transition: all 0.3s; border: none;
}
.btn-taobao { background: #FF5000; color: #fff; }
.btn-taobao:hover { background: #FF6B20; transform: translateY(-1px); }
.btn-jd { background: #E1251B; color: #fff; }
.btn-jd:hover { background: #F1352B; transform: translateY(-1px); }

/* ===== Firmware Timeline ===== */
.timeline { position: relative; padding-left: 32px; }
.timeline::before {
  content: ''; position: absolute; left: 8px; top: 0; bottom: 0;
  width: 2px; background: linear-gradient(to bottom, var(--primary-cyan), transparent);
}
.timeline-item {
  position: relative; margin-bottom: 32px; padding: 24px;
  background: var(--bg-card); border: 1px solid var(--border-card); border-radius: var(--radius);
}
.timeline-item::before {
  content: ''; position: absolute; left: -28px; top: 28px;
  width: 12px; height: 12px; border-radius: 50%;
  background: var(--primary-cyan); box-shadow: 0 0 10px var(--primary-cyan);
}
.timeline-item.latest::before { background: var(--primary-orange); box-shadow: 0 0 15px var(--primary-orange); }
.timeline-badge {
  display: inline-block; padding: 4px 12px; font-size: 12px; font-weight: 600;
  border-radius: 12px; margin-bottom: 8px;
}
.badge-latest { background: rgba(255,107,53,0.15); color: var(--primary-orange); }
.timeline-version { font-size: 20px; font-weight: 700; margin-bottom: 8px; }
.timeline-date { font-size: 13px; color: var(--text-muted); margin-bottom: 12px; }
.timeline-desc { color: var(--text-secondary); font-size: 14px; margin-bottom: 16px; white-space: pre-wrap; }
.timeline-download { display: flex; align-items: center; gap: 8px; }

/* ===== Guide Page ===== */
.guide-layout { display: grid; grid-template-columns: 220px 1fr; gap: 40px; align-items: start; }
.guide-toc {
  position: sticky; top: calc(var(--nav-height) + 24px);
  list-style: none; padding: 0;
}
.guide-toc li { margin-bottom: 4px; }
.guide-toc a {
  display: block; padding: 8px 16px; border-radius: 8px; font-size: 14px;
  color: var(--text-secondary); transition: all 0.3s;
}
.guide-toc a:hover, .guide-toc a.active { color: var(--primary-cyan); background: rgba(0,240,255,0.08); }
.guide-section {
  margin-bottom: 40px; padding: 32px;
  background: var(--bg-card); border: 1px solid var(--border-card); border-radius: var(--radius);
}
.guide-section h2 { font-size: 24px; margin-bottom: 16px; }
.guide-section .step-num {
  display: inline-flex; align-items: center; justify-content: center;
  width: 32px; height: 32px; border-radius: 50%;
  background: var(--primary-cyan); color: #0A0E1A; font-weight: 700;
  font-size: 16px; margin-right: 12px;
}
.guide-content { color: var(--text-secondary); line-height: 1.8; }
.guide-content img { border-radius: 8px; margin: 16px 0; }

/* ===== FAQ Page ===== */
.faq-layout {
  display: grid;
  grid-template-columns: 1fr 400px;
  gap: 40px;
  align-items: start;
}
.faq-left {
  position: sticky;
  top: calc(var(--nav-height) + 24px);
}
.faq-categories { display: flex; gap: 8px; margin-bottom: 32px; flex-wrap: wrap; }
.faq-cat-btn {
  padding: 8px 20px; border-radius: 20px; font-size: 14px; font-weight: 500;
  cursor: pointer; transition: all 0.3s; border: 1px solid var(--border-card);
  background: var(--bg-card); color: var(--text-secondary);
}
.faq-cat-btn:hover, .faq-cat-btn.active {
  border-color: var(--border-glow); color: var(--primary-cyan);
  background: rgba(0, 240, 255, 0.08);
}
.faq-list { width: 100%; }
.faq-item {
  margin-bottom: 12px; border: 1px solid var(--border-card); border-radius: var(--radius);
  overflow: hidden; background: var(--bg-card);
}
.faq-question {
  padding: 18px 24px; display: flex; justify-content: space-between; align-items: center;
  cursor: pointer; font-weight: 600; transition: all 0.3s;
}
.faq-question:hover { background: var(--bg-card-hover); }
.faq-arrow {
  transition: transform 0.3s; font-size: 12px; color: var(--primary-cyan);
  flex-shrink: 0; margin-left: 16px;
}
.faq-item.open .faq-arrow { transform: rotate(180deg); }
.faq-answer {
  max-height: 0; overflow: hidden; transition: max-height 0.4s ease, padding 0.3s ease;
  padding: 0 24px;
}
.faq-item.open .faq-answer { max-height: 500px; padding: 0 24px 18px; }
.faq-answer p { color: var(--text-secondary); font-size: 15px; }

/* Ticket Form */
.ticket-section { 
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius);
  padding: 32px;
}
.ticket-section h3 { font-size: 24px; text-align: center; margin-bottom: 8px; }
.ticket-section .subtitle { text-align: center; color: var(--text-secondary); margin-bottom: 32px; }
.form-group { margin-bottom: 20px; }
.form-group label {
  display: block; margin-bottom: 6px; font-size: 14px; font-weight: 500; color: var(--text-secondary);
}
.form-group label .optional { color: var(--text-muted); font-weight: 400; font-size: 12px; }
.form-group input, .form-group textarea, .form-group select {
  width: 100%; padding: 12px 16px; border-radius: 8px; font-size: 15px;
  border: 1px solid var(--border-card); background: rgba(255,255,255,0.04);
  color: var(--text-primary); transition: border-color 0.3s; outline: none;
  font-family: inherit;
}
.form-group input:focus, .form-group textarea:focus {
  border-color: var(--border-glow); box-shadow: 0 0 0 3px rgba(0,240,255,0.08);
}
.form-group textarea { resize: vertical; min-height: 120px; }
.form-hint { font-size: 12px; color: var(--text-muted); margin-top: 4px; }

/* File Upload Area */
.upload-area {
  border: 2px dashed var(--border-card); border-radius: var(--radius);
  padding: 32px; text-align: center; cursor: pointer; transition: all 0.3s;
  background: rgba(255,255,255,0.02);
}
.upload-area:hover, .upload-area.dragover {
  border-color: var(--border-glow); background: rgba(0,240,255,0.03);
}
.upload-icon { font-size: 36px; margin-bottom: 12px; }
.upload-text { color: var(--text-secondary); font-size: 14px; }
.upload-hint { color: var(--text-muted); font-size: 12px; margin-top: 4px; }
.preview-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
  gap: 12px; margin-top: 16px;
}
.preview-item {
  position: relative; aspect-ratio: 1; border-radius: 8px; overflow: hidden;
  border: 1px solid var(--border-card);
}
.preview-item img { width: 100%; height: 100%; object-fit: cover; }
.preview-remove {
  position: absolute; top: 4px; right: 4px; width: 24px; height: 24px;
  border-radius: 50%; background: rgba(0,0,0,0.6); border: none; color: #fff;
  font-size: 16px; cursor: pointer; display: flex; align-items: center; justify-content: center;
}

/* ===== Contact Page ===== */
.contact-layout { display: grid; grid-template-columns: 1fr 380px; gap: 32px; }
.contact-form-card { padding: 40px; }
.contact-info-card { padding: 32px; }
.contact-info-item { display: flex; gap: 16px; margin-bottom: 24px; }
.contact-info-icon {
  width: 44px; height: 44px; border-radius: 12px; flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
  background: rgba(0,240,255,0.1); border: 1px solid var(--border-glow);
  font-size: 20px;
}
.contact-info-text h4 { font-size: 15px; margin-bottom: 4px; }
.contact-info-text p { color: var(--text-secondary); font-size: 14px; }

/* ===== CTA Section ===== */
.cta-section {
  text-align: center; padding: 80px 40px;
  background: linear-gradient(135deg, rgba(0,240,255,0.05), rgba(255,107,53,0.05));
}
.cta-section h2 { font-size: 28px; margin-bottom: 16px; }
.cta-section p { color: var(--text-secondary); margin-bottom: 32px; }

/* ===== Footer ===== */
.footer {
  padding: 40px 40px 24px; border-top: 1px solid var(--border-card);
  background: rgba(0,0,0,0.3);
}
.footer-inner { max-width: 100%; margin: 0 auto; text-align: center; padding: 0 40px; }
.footer p { color: var(--text-muted); font-size: 14px; line-height: 2; }

/* ===== Toast Notification ===== */
.toast {
  position: fixed; top: calc(var(--nav-height) + 16px); right: 16px; z-index: 9999;
  padding: 14px 24px; border-radius: 10px; font-size: 14px; font-weight: 500;
  color: #fff; transform: translateX(110%); transition: transform 0.4s ease;
  max-width: 360px;
}
.toast.show { transform: translateX(0); }
.toast-success { background: var(--green); }
.toast-error { background: var(--red); }
.toast-info { background: var(--indigo); }

/* ===== Admin Styles ===== */
.admin-layout { display: flex; min-height: 100vh; }
.admin-sidebar {
  width: 240px; flex-shrink: 0; background: var(--bg-dark);
  border-right: 1px solid var(--border-card); padding: 20px 0;
  position: fixed; top: 0; left: 0; bottom: 0; z-index: 100;
}
.admin-sidebar-brand {
  padding: 0 20px 20px; border-bottom: 1px solid var(--border-card);
  font-size: 18px; font-weight: 700;
}
.admin-sidebar nav a {
  display: flex; align-items: center; gap: 10px; padding: 12px 20px;
  color: var(--text-secondary); font-size: 14px; transition: all 0.3s;
}
.admin-sidebar nav a:hover, .admin-sidebar nav a.active {
  color: var(--primary-cyan); background: rgba(0,240,255,0.06);
  border-right: 3px solid var(--primary-cyan);
}
.admin-main { margin-left: 240px; flex: 1; padding: 24px 32px; }
.admin-header { margin-bottom: 24px; display: flex; justify-content: space-between; align-items: center; }
.admin-header h2 { font-size: 24px; }

/* Stats Cards */
.stats-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 16px; margin-bottom: 32px; }
.stat-card { text-align: center; padding: 24px; }
.stat-card .stat-value { font-size: 32px; font-weight: 700; color: var(--primary-cyan); margin-bottom: 4px; }
.stat-card .stat-label { font-size: 13px; color: var(--text-muted); }

/* Admin Table */
.admin-table { width: 100%; border-collapse: collapse; }
.admin-table th, .admin-table td { padding: 12px 16px; text-align: left; border-bottom: 1px solid var(--border-card); }
.admin-table th { font-size: 12px; font-weight: 600; color: var(--text-muted); text-transform: uppercase; }
.admin-table td { font-size: 14px; }
.admin-table tr:hover td { background: rgba(0,240,255,0.02); }

/* Status Badges */
.status-badge {
  display: inline-block; padding: 4px 12px; border-radius: 12px; font-size: 12px; font-weight: 600;
}
.status-pending { background: rgba(245,158,11,0.15); color: var(--yellow); }
.status-processing { background: rgba(99,102,241,0.15); color: var(--indigo); }
.status-resolved { background: rgba(16,185,129,0.15); color: var(--green); }

/* Modal */
.modal-overlay {
  display: none; position: fixed; top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(0,0,0,0.7); z-index: 2000;
  align-items: center; justify-content: center;
}
.modal-overlay.active { display: flex; }
.modal {
  background: var(--bg-dark); border: 1px solid var(--border-card); border-radius: var(--radius);
  padding: 32px; max-width: 600px; width: 90%; max-height: 80vh; overflow-y: auto;
}
.modal h3 { margin-bottom: 20px; font-size: 20px; }
.modal-actions { display: flex; gap: 10px; justify-content: flex-end; margin-top: 20px; }

/* Quill Editor */
.ql-toolbar { border-color: var(--border-card) !important; border-radius: 8px 8px 0 0 !important; }
.ql-container { border-color: var(--border-card) !important; border-radius: 0 0 8px 8px !important; min-height: 300px; }
.ql-editor { color: var(--text-primary); font-size: 15px; }
.ql-editor.ql-blank::before { color: var(--text-muted); }

/* Login Page */
.login-page {
  min-height: 100vh; display: flex; align-items: center; justify-content: center;
  background: var(--bg-deep);
}
.login-card {
  width: 400px; max-width: 90%; padding: 40px;
  background: var(--bg-card); border: 1px solid var(--border-card); border-radius: var(--radius);
  backdrop-filter: blur(10px);
}
.login-card h2 { text-align: center; margin-bottom: 8px; font-size: 24px; }
.login-card .login-sub { text-align: center; color: var(--text-muted); margin-bottom: 24px; font-size: 14px; }
.login-error { background: rgba(239,68,68,0.1); color: var(--red); padding: 10px 16px; border-radius: 8px; margin-bottom: 16px; font-size: 14px; }

/* Success Alert */
.success-alert {
  background: rgba(16,185,129,0.1); border: 1px solid rgba(16,185,129,0.3);
  color: var(--green); padding: 16px 24px; border-radius: var(--radius);
  text-align: center; margin-bottom: 24px; font-weight: 500;
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .nav-inner { padding: 0 24px; }
  .section { padding: 60px 24px; }
  .footer-inner { padding: 0 24px; }
  .features-grid { grid-template-columns: repeat(2, 1fr); }
  .specs-grid { grid-template-columns: 1fr; }
  .guide-layout { grid-template-columns: 1fr; }
  .faq-layout { grid-template-columns: 1fr; }
  .faq-left { position: static; }
  .guide-toc { position: static; display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 24px; }
  .contact-layout { grid-template-columns: 1fr; }
  .admin-sidebar { width: 200px; }
  .admin-main { margin-left: 200px; }
}
@media (max-width: 768px) {
  .nav-inner { padding: 0 16px; }
  .section { padding: 40px 16px; }
  .cta-section { padding: 40px 16px; }
  .footer { padding: 30px 16px 20px; }
  .footer-inner { padding: 0; }
  .nav-links { display: none; position: absolute; top: var(--nav-height); left: 0; right: 0; flex-direction: column; background: rgba(10,14,26,0.95); backdrop-filter: blur(20px); padding: 8px; border-bottom: 1px solid var(--border-card); }
  .nav-links.open { display: flex; }
  .hamburger { display: flex; }
  .hero h1 { font-size: 32px; }
  .features-grid { grid-template-columns: 1fr; }
  .products-grid { grid-template-columns: 1fr; }
  .section-title { font-size: 26px; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .admin-sidebar { transform: translateX(-100%); transition: transform 0.3s; }
  .admin-main { margin-left: 0; }
}