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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 72px;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Inter', sans-serif;
  background: #06090f;
  color: #c9cdd5;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

.container {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 24px;
}

a { color: inherit; text-decoration: none; }

code {
  background: rgba(45, 212, 191, 0.08);
  border: 1px solid rgba(45, 212, 191, 0.15);
  padding: 2px 7px;
  border-radius: 5px;
  font-size: 0.88em;
  color: #2dd4bf;
  font-family: 'SF Mono', 'Fira Code', 'Consolas', monospace;
}

.hidden { display: none !important; }

/* Skip link for accessibility */
.skip-link {
  position: absolute;
  top: -100%;
  left: 16px;
  padding: 12px 20px;
  background: #0d9488;
  color: #fff;
  border-radius: 8px;
  font-weight: 600;
  font-size: 14px;
  z-index: 200;
  transition: top 0.2s;
}
.skip-link:focus {
  top: 12px;
}

/* ========== Buttons ========== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 28px;
  border-radius: 10px;
  font-size: 15px;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.25s ease;
  cursor: pointer;
  border: none;
  gap: 8px;
}

.btn-sm {
  padding: 8px 18px;
  font-size: 13px;
  border-radius: 8px;
}

.btn-lg {
  padding: 15px 36px;
  font-size: 16px;
}

.btn-primary {
  background: linear-gradient(135deg, #14b8a6, #0d9488);
  color: #fff;
  box-shadow: 0 4px 24px rgba(20, 184, 166, 0.3);
}

.btn-primary:hover {
  background: linear-gradient(135deg, #2dd4bf, #14b8a6);
  box-shadow: 0 8px 32px rgba(20, 184, 166, 0.45);
  transform: translateY(-2px);
}

.btn-outline {
  background: transparent;
  color: #2dd4bf;
  border: 1.5px solid rgba(45, 212, 191, 0.4);
}

.btn-outline:hover {
  background: rgba(45, 212, 191, 0.08);
  border-color: #2dd4bf;
  transform: translateY(-2px);
}

.btn-ghost {
  background: transparent;
  color: #94a3b8;
  padding: 12px 20px;
}

.btn-ghost:hover {
  color: #e2e8f0;
}

/* ========== Navbar ========== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(6, 9, 15, 0.8);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(30, 41, 59, 0.5);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 17px;
  font-weight: 700;
  color: #f1f5f9;
}

.nav-logo {
  font-size: 20px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
}

.nav-links a {
  font-size: 14px;
  color: #94a3b8;
  transition: color 0.2s;
}

.nav-links a:hover {
  color: #e2e8f0;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.nav-toggle span {
  width: 22px;
  height: 2px;
  background: #94a3b8;
  border-radius: 2px;
  transition: all 0.3s;
}

.nav-toggle.open span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.nav-toggle.open span:nth-child(2) {
  opacity: 0;
}

.nav-toggle.open span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

.mobile-menu {
  padding: 16px 24px 20px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  border-bottom: 1px solid #1e293b;
}

.mobile-menu a {
  font-size: 15px;
  color: #94a3b8;
}

/* ========== Hero ========== */
.hero {
  position: relative;
  text-align: center;
  padding: 140px 24px 60px;
  overflow: hidden;
}

.hero-glow {
  position: absolute;
  top: -30%;
  left: 50%;
  transform: translateX(-50%);
  width: 700px;
  height: 700px;
  background: radial-gradient(circle, rgba(20, 184, 166, 0.1) 0%, transparent 65%);
  pointer-events: none;
}

.hero-glow-2 {
  position: absolute;
  top: 10%;
  right: -10%;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(99, 102, 241, 0.06) 0%, transparent 65%);
  pointer-events: none;
}

.hero .container {
  position: relative;
  z-index: 1;
}

.badge {
  display: inline-block;
  padding: 6px 18px;
  background: rgba(45, 212, 191, 0.07);
  border: 1px solid rgba(45, 212, 191, 0.2);
  border-radius: 20px;
  font-size: 12px;
  font-weight: 500;
  color: #2dd4bf;
  letter-spacing: 0.5px;
  margin-bottom: 28px;
}

.hero h1 {
  font-size: 52px;
  font-weight: 800;
  color: #f1f5f9;
  line-height: 1.12;
  margin-bottom: 20px;
  letter-spacing: -0.5px;
}

.accent { color: #2dd4bf; }

.tagline {
  font-size: 18px;
  color: #7a8599;
  max-width: 580px;
  margin: 0 auto 40px;
}

.hero-actions {
  display: flex;
  justify-content: center;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 64px;
}

/* Hero Preview (mock popup) */
.hero-preview {
  max-width: 360px;
  margin: 0 auto;
}

.preview-window {
  background: #111827;
  border: 1px solid #1e293b;
  border-radius: 14px;
  overflow: hidden;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5), 0 0 0 1px rgba(45, 212, 191, 0.08);
}

.preview-toolbar {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 12px 14px;
  background: #0d1117;
  border-bottom: 1px solid #1e293b;
}

.dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}
.dot-red { background: #ef4444; }
.dot-yellow { background: #f59e0b; }
.dot-green { background: #22c55e; }

.preview-title {
  font-size: 11px;
  color: #475569;
  margin-left: 8px;
}

.preview-body {
  padding: 16px;
}

.preview-header-bar {
  text-align: center;
  font-size: 14px;
  font-weight: 600;
  color: #2dd4bf;
  margin-bottom: 12px;
}

.preview-toggle {
  display: flex;
  background: #1e293b;
  border-radius: 7px;
  padding: 3px;
  margin-bottom: 12px;
}

.toggle-active, .toggle-inactive {
  flex: 1;
  text-align: center;
  padding: 6px;
  font-size: 12px;
  border-radius: 5px;
}

.toggle-active {
  background: #0d9488;
  color: #fff;
  font-weight: 600;
}

.toggle-inactive {
  color: #64748b;
}

.preview-list {
  background: #1e293b;
  border-radius: 7px;
  overflow: hidden;
  margin-bottom: 12px;
}

.preview-item {
  padding: 8px 10px;
  font-size: 11px;
  color: #cbd5e1;
  border-bottom: 1px solid #334155;
  display: flex;
  align-items: center;
  gap: 8px;
}

.preview-item:last-child { border-bottom: none; }

.check {
  color: #14b8a6;
  font-weight: 700;
  font-size: 12px;
}

.preview-bar-wrap {
  height: 6px;
  background: #1e293b;
  border-radius: 4px;
  overflow: hidden;
  margin-bottom: 12px;
}

.preview-bar {
  width: 65%;
  height: 100%;
  background: linear-gradient(90deg, #14b8a6, #0d9488);
  border-radius: 4px;
  animation: barPulse 2s ease-in-out infinite;
}

@keyframes barPulse {
  0%, 100% { width: 30%; }
  50% { width: 75%; }
}

.preview-btn-row {
  text-align: center;
}

.preview-btn-start {
  display: inline-block;
  padding: 8px 32px;
  background: #0d9488;
  color: #fff;
  border-radius: 7px;
  font-size: 13px;
  font-weight: 600;
}

/* ========== Stats ========== */
.stats {
  padding: 40px 24px;
  border-top: 1px solid #111827;
  border-bottom: 1px solid #111827;
  background: #080c14;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  text-align: center;
}

.stat-value {
  display: block;
  font-size: 36px;
  font-weight: 800;
  color: #2dd4bf;
  line-height: 1.2;
}

.stat-label {
  font-size: 13px;
  color: #64748b;
  margin-top: 4px;
  display: block;
}

/* ========== Section Common ========== */
.section-badge {
  display: inline-block;
  padding: 5px 14px;
  background: rgba(45, 212, 191, 0.07);
  border: 1px solid rgba(45, 212, 191, 0.15);
  border-radius: 16px;
  font-size: 11px;
  font-weight: 600;
  color: #2dd4bf;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 16px;
}

.section-title {
  font-size: 36px;
  font-weight: 800;
  color: #f1f5f9;
  line-height: 1.2;
  margin-bottom: 16px;
  letter-spacing: -0.3px;
}

.section-subtitle {
  font-size: 16px;
  color: #64748b;
  margin-bottom: 48px;
}

/* ========== Features ========== */
.features {
  padding: 100px 24px;
  text-align: center;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 48px;
  text-align: left;
}

.feature-card {
  background: #0c1120;
  border: 1px solid #161f33;
  border-radius: 16px;
  padding: 30px 24px;
  transition: border-color 0.3s, transform 0.3s, box-shadow 0.3s;
}

.feature-card:hover {
  border-color: rgba(45, 212, 191, 0.35);
  transform: translateY(-6px);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.3);
}

.feature-icon {
  font-size: 30px;
  margin-bottom: 16px;
}

.feature-card h3 {
  font-size: 17px;
  font-weight: 700;
  color: #e2e8f0;
  margin-bottom: 8px;
}

.feature-card p {
  font-size: 14px;
  color: #7a8599;
  line-height: 1.6;
}

/* ========== How It Works ========== */
.how-it-works {
  padding: 100px 24px;
  text-align: center;
  background: #080c14;
}

.steps-row {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  gap: 0;
  margin-top: 48px;
  flex-wrap: wrap;
}

.step-card {
  flex: 0 0 200px;
  text-align: center;
}

.step-connector {
  width: 48px;
  height: 2px;
  background: linear-gradient(90deg, #1e293b, #2dd4bf, #1e293b);
  margin-top: 22px;
  flex-shrink: 0;
}

.step-num {
  width: 48px;
  height: 48px;
  margin: 0 auto 16px;
  background: linear-gradient(135deg, #14b8a6, #0d9488);
  color: #fff;
  font-size: 20px;
  font-weight: 800;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 20px rgba(20, 184, 166, 0.25);
}

.step-card h3 {
  font-size: 16px;
  font-weight: 700;
  color: #e2e8f0;
  margin-bottom: 6px;
}

.step-card p {
  font-size: 13px;
  color: #7a8599;
  line-height: 1.55;
  padding: 0 8px;
}

/* ========== Formats ========== */
.formats {
  padding: 100px 24px;
  text-align: center;
}

.formats-table-wrap {
  max-width: 720px;
  margin: 0 auto;
  overflow-x: auto;
}

.formats-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
}

.formats-table th {
  padding: 14px 18px;
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  color: #64748b;
  border-bottom: 2px solid #1e293b;
}

.formats-table td {
  padding: 16px 18px;
  font-size: 14px;
  color: #94a3b8;
  border-bottom: 1px solid #111827;
}

.formats-table tr:last-child td {
  border-bottom: none;
}

.formats-table td:first-child {
  width: 100px;
}

/* ========== Install ========== */
.install {
  padding: 100px 24px;
  text-align: center;
  background: #080c14;
}

.chrome-store-cta {
  margin-top: 48px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
}

.chrome-store-btn {
  display: inline-flex;
  align-items: center;
  gap: 16px;
  padding: 18px 32px;
  background: #0c1120;
  border: 1px solid #1e293b;
  border-radius: 16px;
  transition: border-color 0.3s, transform 0.3s, box-shadow 0.3s;
  cursor: default;
  position: relative;
}

.chrome-store-btn:hover {
  border-color: rgba(45, 212, 191, 0.35);
  transform: translateY(-3px);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.35);
}

.chrome-icon {
  flex-shrink: 0;
  color: #2dd4bf;
}

.chrome-store-text {
  display: flex;
  flex-direction: column;
  text-align: left;
}

.chrome-store-label {
  font-size: 12px;
  color: #64748b;
  line-height: 1.2;
}

.chrome-store-name {
  font-size: 19px;
  font-weight: 700;
  color: #f1f5f9;
  line-height: 1.3;
}

.coming-soon-tag {
  padding: 5px 14px;
  background: linear-gradient(135deg, rgba(245, 158, 11, 0.15), rgba(245, 158, 11, 0.08));
  border: 1px solid rgba(245, 158, 11, 0.3);
  color: #fbbf24;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  border-radius: 8px;
  white-space: nowrap;
}

.install-note {
  font-size: 14px;
  color: #475569;
  max-width: 420px;
  text-align: center;
}

.install-steps {
  text-align: left;
  max-width: 480px;
  margin: 20px auto 0;
  padding: 0;
  list-style-position: inside;
  display: flex;
  flex-direction: column;
  gap: 10px;
  font-size: 14px;
  color: #94a3b8;
}

.install-steps li {
  padding: 8px 12px;
  background: rgba(30, 41, 59, 0.4);
  border-radius: 8px;
  border: 1px solid rgba(45, 212, 191, 0.08);
}

.install-steps code {
  background: rgba(45, 212, 191, 0.1);
  color: #2dd4bf;
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 13px;
}

/* ========== Feedback ========== */
.feedback {
  padding: 100px 24px;
  text-align: center;
  background: #080c14;
}

.feedback-card {
  max-width: 520px;
  margin: 48px auto 0;
  background: #0c1120;
  border: 1px solid #161f33;
  border-radius: 16px;
  padding: 32px 28px;
  text-align: left;
}

.form-group {
  margin-bottom: 18px;
}

.form-group label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: #94a3b8;
  margin-bottom: 6px;
}

.form-optional {
  font-weight: 400;
  color: #475569;
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: 10px 14px;
  background: #161f33;
  color: #e2e8f0;
  border: 1px solid #1e293b;
  border-radius: 10px;
  font-size: 14px;
  font-family: inherit;
  outline: none;
  transition: border-color 0.2s;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  border-color: #2dd4bf;
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: #334155;
}

.form-textarea {
  resize: vertical;
  min-height: 90px;
}

.form-select {
  cursor: pointer;
  appearance: auto;
}

.btn-send {
  width: 100%;
  justify-content: center;
  margin-top: 8px;
}

.btn-send:disabled {
  opacity: 0.7;
  cursor: not-allowed;
}

.fb-status {
  padding: 10px 14px;
  border-radius: 10px;
  font-size: 13px;
  text-align: center;
  margin-bottom: 12px;
}

.fb-status.success {
  background: rgba(34, 197, 94, 0.1);
  border: 1px solid rgba(34, 197, 94, 0.25);
  color: #4ade80;
}

.fb-status.error {
  background: rgba(239, 68, 68, 0.1);
  border: 1px solid rgba(239, 68, 68, 0.25);
  color: #f87171;
}

/* ========== CTA ========== */
.cta {
  padding: 80px 24px;
  text-align: center;
}

.cta-card {
  background: linear-gradient(135deg, #0c1a24 0%, #0c1120 100%);
  border: 1px solid #1e293b;
  border-radius: 24px;
  padding: 64px 40px;
}

.cta h2 {
  font-size: 32px;
  font-weight: 800;
  color: #f1f5f9;
  margin-bottom: 12px;
}

.cta p {
  font-size: 17px;
  color: #7a8599;
  margin-bottom: 36px;
}

.cta-actions {
  display: flex;
  justify-content: center;
  gap: 14px;
  flex-wrap: wrap;
}

/* ========== Footer ========== */
.footer {
  padding: 40px 24px 32px;
  border-top: 1px solid #111827;
  text-align: center;
}

.footer-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}

.footer-brand {
  font-size: 15px;
  font-weight: 700;
  color: #e2e8f0;
  display: flex;
  align-items: center;
  gap: 6px;
}

.footer-links {
  display: flex;
  gap: 24px;
}

.footer-links a {
  font-size: 13px;
  color: #64748b;
  transition: color 0.2s;
}

.footer-links a:hover {
  color: #e2e8f0;
}

.footer-copy {
  font-size: 12px;
  color: #334155;
}

/* ========== Responsive ========== */
@media (max-width: 768px) {
  .nav-links { display: none; }
  .nav-toggle { display: flex; }

  .hero { padding-top: 110px; }

  .hero h1 {
    font-size: 34px;
  }

  .tagline {
    font-size: 16px;
  }

  .section-title {
    font-size: 28px;
  }

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }

  .features-grid {
    grid-template-columns: 1fr;
  }

  .steps-row {
    flex-direction: column;
    align-items: center;
  }

  .step-connector {
    width: 2px;
    height: 32px;
    background: linear-gradient(180deg, #1e293b, #2dd4bf, #1e293b);
    margin: 0;
  }

  .step-card {
    flex: auto;
    width: 100%;
    max-width: 280px;
  }

  .cta-card {
    padding: 40px 24px;
  }

  .cta h2 {
    font-size: 26px;
  }
}

@media (max-width: 480px) {
  .hero h1 {
    font-size: 28px;
  }

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .stat-value {
    font-size: 28px;
  }
}