/* ==========================================================================
   Zney Backup & Restore - Modern Premium Design System
   ========================================================================== */

:root {
  --bg-dark: #07090e;
  --bg-surface: #0f131d;
  --bg-card: #151a27;
  --bg-card-hover: #1c2333;
  --bg-glass: rgba(21, 26, 39, 0.75);

  --border-subtle: #222a3d;
  --border-highlight: #3b82f6;

  --primary-blue: #3b82f6;
  --primary-blue-glow: rgba(59, 130, 246, 0.35);
  --accent-emerald: #10b981;
  --accent-emerald-glow: rgba(16, 185, 129, 0.3);
  --accent-purple: #8b5cf6;
  --accent-amber: #f59e0b;
  --accent-rose: #f43f5e;
  --accent-cyan: #06b6d4;

  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-full: 9999px;

  --font-main: 'Outfit', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', 'Cascadia Mono', Consolas, monospace;

  --transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  color-scheme: dark;
}

body {
  font-family: var(--font-main);
  background-color: var(--bg-dark);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  position: relative;
}

/* Background Glowing Mesh Orbs */
.bg-glow-1, .bg-glow-2, .bg-glow-3 {
  position: absolute;
  border-radius: 50%;
  filter: blur(140px);
  pointer-events: none;
  z-index: 0;
}

.bg-glow-1 {
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(59, 130, 246, 0.18), transparent 70%);
  top: -100px;
  left: 20%;
}

.bg-glow-2 {
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(16, 185, 129, 0.12), transparent 70%);
  top: 600px;
  right: -100px;
}

.bg-glow-3 {
  width: 550px;
  height: 550px;
  background: radial-gradient(circle, rgba(139, 92, 246, 0.15), transparent 70%);
  bottom: 200px;
  left: -50px;
}

/* Container */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  position: relative;
  z-index: 1;
}

/* Typography & Utilities */
h1, h2, h3, h4 {
  color: var(--text-primary);
  font-weight: 700;
  line-height: 1.25;
}

.gradient-text {
  background: linear-gradient(135deg, #60a5fa 0%, #34d399 50%, #a78bfa 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  background: rgba(59, 130, 246, 0.12);
  border: 1px solid rgba(59, 130, 246, 0.3);
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 600;
  color: #93c5fd;
  letter-spacing: 0.02em;
}

.badge-emerald {
  background: rgba(16, 185, 129, 0.12);
  border-color: rgba(16, 185, 129, 0.3);
  color: #6ee7b7;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 12px 26px;
  font-family: var(--font-main);
  font-size: 1rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  text-decoration: none;
  cursor: pointer;
  transition: var(--transition);
  border: none;
}

.btn-primary {
  background: linear-gradient(135deg, #2563eb, #1d4ed8);
  color: #ffffff;
  box-shadow: 0 4px 20px var(--primary-blue-glow);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(59, 130, 246, 0.55);
}

.btn-success {
  background: linear-gradient(135deg, #10b981, #059669);
  color: #ffffff;
  box-shadow: 0 4px 20px var(--accent-emerald-glow);
}

.btn-success:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(16, 185, 129, 0.55);
}

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

.btn-secondary:hover {
  background: var(--bg-card-hover);
  border-color: #3b4660;
  transform: translateY(-2px);
}

/* Header & Navbar */
.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(7, 9, 14, 0.85);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-subtle);
  padding: 16px 0;
}

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

.logo-group {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.logo-img {
  width: 38px;
  height: 38px;
  border-radius: var(--radius-sm);
  background: #141a27;
  padding: 4px;
  border: 1px solid var(--border-subtle);
}

.logo-title {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--text-primary);
  letter-spacing: -0.02em;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 28px;
  list-style: none;
}

.nav-link {
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.95rem;
  transition: var(--transition);
}

.nav-link:hover {
  color: var(--text-primary);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 14px;
}

.lang-btn {
  background: var(--bg-card);
  color: var(--text-primary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 6px 12px;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 6px;
  transition: var(--transition);
}

.lang-btn:hover {
  background: var(--bg-card-hover);
  border-color: #475569;
}

/* Hero Section */
.hero {
  padding: 90px 0 70px;
  text-align: center;
}

.hero-content {
  max-width: 860px;
  margin: 0 auto;
}

.hero-title {
  font-size: 3.4rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  margin: 20px 0;
  line-height: 1.15;
}

.hero-subtitle {
  font-size: 1.2rem;
  color: var(--text-secondary);
  margin-bottom: 36px;
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 40px;
}

.release-meta {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 20px;
  font-size: 0.88rem;
  color: var(--text-muted);
}

.release-meta span {
  display: flex;
  align-items: center;
  gap: 6px;
}

/* App Showcase Mockup */
.showcase-wrapper {
  margin-top: 60px;
  position: relative;
}

.showcase-mockup {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 12px;
  box-shadow: 0 25px 60px -12px rgba(0, 0, 0, 0.7), 0 0 40px rgba(59, 130, 246, 0.15);
  overflow: hidden;
}

.mockup-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px 14px;
  border-bottom: 1px solid var(--border-subtle);
}

.dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}
.dot-red { background: #ef4444; }
.dot-yellow { background: #f59e0b; }
.dot-green { background: #10b981; }

.mockup-body {
  padding: 24px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  background: #0a0d14;
  border-radius: var(--radius-md);
  margin-top: 8px;
}

.mock-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 20px;
  text-align: left;
}

.mock-card-header {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.mock-list-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 10px;
  background: var(--bg-surface);
  border-radius: 6px;
  margin-bottom: 8px;
  font-size: 0.85rem;
}

.mock-tag {
  font-size: 0.75rem;
  font-weight: 700;
  padding: 2px 6px;
  border-radius: 4px;
  background: rgba(59, 130, 246, 0.2);
  color: #93c5fd;
}

/* Problem vs Solution Section */
.section {
  padding: 80px 0;
}

.section-header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 50px;
}

.section-title {
  font-size: 2.3rem;
  margin: 12px 0;
}

.section-subtitle {
  color: var(--text-secondary);
  font-size: 1.05rem;
}

.comparison-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
}

.comp-card {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  padding: 36px;
  border: 1px solid var(--border-subtle);
  position: relative;
}

.comp-card-problem {
  border-top: 4px solid var(--accent-rose);
}

.comp-card-solution {
  border-top: 4px solid var(--accent-emerald);
  box-shadow: 0 10px 40px -10px rgba(16, 185, 129, 0.15);
}

.comp-card-title {
  font-size: 1.4rem;
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.comp-list {
  list-style: none;
}

.comp-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  margin-bottom: 18px;
  font-size: 0.98rem;
  color: var(--text-secondary);
}

.comp-icon {
  font-size: 1.2rem;
  flex-shrink: 0;
}

/* Workflow Flow Section */
.workflow-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  position: relative;
}

.step-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 32px 24px;
  position: relative;
  transition: var(--transition);
}

.step-card:hover {
  transform: translateY(-4px);
  border-color: var(--border-highlight);
  background: var(--bg-card-hover);
}

.step-number {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary-blue), var(--accent-emerald));
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 1.2rem;
  margin-bottom: 20px;
}

.step-title {
  font-size: 1.25rem;
  margin-bottom: 12px;
}

.step-desc {
  color: var(--text-secondary);
  font-size: 0.93rem;
  line-height: 1.6;
}

/* Features Grid */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.feature-box {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 28px;
  transition: var(--transition);
}

.feature-box:hover {
  transform: translateY(-3px);
  border-color: #3b4660;
  background: var(--bg-card-hover);
}

.feature-icon-wrapper {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 18px;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
}

.feature-title {
  font-size: 1.15rem;
  margin-bottom: 10px;
}

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

/* Technical Specification Strip */
.tech-strip {
  background: var(--bg-surface);
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
  padding: 40px 0;
  margin: 40px 0;
}

.tech-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  text-align: center;
}

.tech-item h4 {
  font-size: 1.8rem;
  font-weight: 800;
  margin-bottom: 4px;
}

.tech-item p {
  color: var(--text-muted);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* FAQ Accordion */
.faq-list {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  margin-bottom: 12px;
  overflow: hidden;
  transition: var(--transition);
}

.faq-question {
  width: 100%;
  text-align: left;
  background: transparent;
  border: none;
  padding: 20px 24px;
  color: var(--text-primary);
  font-size: 1.05rem;
  font-weight: 600;
  font-family: var(--font-main);
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
}

.faq-icon {
  font-size: 1.2rem;
  transition: transform 0.3s ease;
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s cubic-bezier(0, 1, 0, 1);
  padding: 0 24px;
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.7;
}

.faq-item.active .faq-answer {
  max-height: 500px;
  padding-bottom: 20px;
}

.faq-item.active .faq-icon {
  transform: rotate(180deg);
}

/* Download CTA Banner */
.cta-banner {
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.2), rgba(16, 185, 129, 0.15));
  border: 1px solid rgba(59, 130, 246, 0.3);
  border-radius: var(--radius-lg);
  padding: 60px 40px;
  text-align: center;
  margin: 80px 0 40px;
  position: relative;
  overflow: hidden;
}

.cta-title {
  font-size: 2.4rem;
  margin-bottom: 14px;
}

.cta-subtitle {
  color: var(--text-secondary);
  font-size: 1.1rem;
  max-width: 600px;
  margin: 0 auto 30px;
}

/* Footer */
.footer {
  border-top: 1px solid var(--border-subtle);
  padding: 40px 0 30px;
  margin-top: 60px;
  color: var(--text-muted);
  font-size: 0.88rem;
}

.footer-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 20px;
}

.footer-links {
  display: flex;
  align-items: center;
  gap: 20px;
  list-style: none;
}

.footer-link {
  color: var(--text-secondary);
  text-decoration: none;
  transition: var(--transition);
}

.footer-link:hover {
  color: var(--text-primary);
}

/* Responsive Breakpoints */
@media (max-width: 960px) {
  .hero-title { font-size: 2.6rem; }
  .comparison-grid, .workflow-grid, .features-grid, .mockup-body {
    grid-template-columns: 1fr;
  }
  .tech-grid { grid-template-columns: 1fr 1fr; gap: 24px; }
  .nav-menu { display: none; }
}

@media (max-width: 640px) {
  .hero-title { font-size: 2rem; }
  .hero-subtitle { font-size: 1rem; }
  .btn { width: 100%; }
  .hero-actions { flex-direction: column; }
  .tech-grid { grid-template-columns: 1fr; }
}