/* =========================================
   Option Lens Marketing Site — Global Styles
   ========================================= */

:root {
  --bg-primary: #0f1419;
  --bg-secondary: #1a1f26;
  --bg-tertiary: #242b35;
  --text-primary: #f9fafb;
  --text-secondary: #9ca3af;
  --text-tertiary: #6b7280;
  --border-color: #2d3748;
  --border-light: #374151;
  --accent: #10b981;
  --accent-dark: #059669;
  --accent-gradient: linear-gradient(135deg, #10b981 0%, #059669 100%);
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.3);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.4);
  --shadow-lg: 0 8px 32px rgba(0,0,0,0.5);
  --radius: 12px;
  --radius-lg: 20px;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); text-decoration: none; }
a:hover { color: #34d399; }

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

/* ---- Nav ---- */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(15, 20, 25, 0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-color);
}

.nav-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 18px;
  font-weight: 700;
  color: var(--text-primary);
  text-decoration: none;
}

.nav-logo .logo-svg {
  width: 32px;
  height: 32px;
  flex-shrink: 0;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
  list-style: none;
}

.nav-links a {
  font-size: 14px;
  color: var(--text-secondary);
  transition: color 0.2s;
}

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

.nav-cta {
  background: var(--accent-gradient);
  color: #fff !important;
  padding: 8px 18px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 14px !important;
  transition: opacity 0.2s !important;
  cursor: pointer;
  border: none;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  line-height: 1;
}

.nav-cta:hover { opacity: 0.88; color: #fff !important; }

.nav-cta-chevron {
  width: 10px;
  height: 10px;
  transition: transform 0.2s;
  flex-shrink: 0;
}

.nav-download-wrapper {
  position: relative;
}

.nav-download-wrapper.open .nav-cta-chevron {
  transform: rotate(180deg);
}

.nav-download-dropdown {
  display: none;
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  background: var(--bg-card);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 10px;
  overflow: hidden;
  min-width: 180px;
  box-shadow: 0 8px 24px rgba(0,0,0,0.4);
  z-index: 200;
}

.nav-download-wrapper.open .nav-download-dropdown {
  display: block;
}

.nav-download-dropdown a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 16px;
  color: var(--text-primary) !important;
  font-size: 14px !important;
  font-weight: 500;
  text-decoration: none;
  transition: background 0.15s;
}

.nav-download-dropdown a:hover {
  background: rgba(255,255,255,0.06);
  color: var(--text-primary) !important;
  opacity: 1 !important;
}

.nav-download-dropdown a svg {
  flex-shrink: 0;
}

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

.nav-hamburger span {
  width: 22px;
  height: 2px;
  background: var(--text-secondary);
  border-radius: 2px;
  display: block;
  transition: 0.3s;
}

/* ---- Container ---- */
.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ---- Section ---- */
.section { padding: 80px 0; }
.section-alt { background: var(--bg-secondary); }

.section-label {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid rgba(16, 185, 129, 0.25);
  padding: 4px 12px;
  border-radius: 20px;
  margin-bottom: 16px;
}

.section-title {
  font-size: clamp(28px, 4vw, 42px);
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 16px;
}

.section-subtitle {
  font-size: 17px;
  color: var(--text-secondary);
  max-width: 560px;
  line-height: 1.7;
}

.text-center { text-align: center; }
.text-center .section-subtitle { margin: 0 auto; }

.highlight { color: var(--accent); }

/* ---- Buttons ---- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 24px;
  border-radius: 10px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: transform 0.15s, opacity 0.15s, box-shadow 0.15s;
  text-decoration: none;
}

.btn:active { transform: scale(0.97); }

.btn-primary {
  background: var(--accent-gradient);
  color: #fff;
  box-shadow: 0 4px 20px rgba(16, 185, 129, 0.35);
}

.btn-primary:hover {
  color: #fff;
  opacity: 0.9;
  box-shadow: 0 6px 28px rgba(16, 185, 129, 0.5);
}

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

.btn-secondary:hover {
  color: var(--text-primary);
  background: var(--border-color);
}

.btn-outline {
  background: transparent;
  color: var(--accent);
  border: 1.5px solid var(--accent);
}

.btn-outline:hover {
  background: rgba(16, 185, 129, 0.08);
  color: var(--accent);
}

/* ---- Store Buttons ---- */
.store-buttons {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.store-btn {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 11px 20px;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-light);
  border-radius: 12px;
  color: var(--text-primary);
  text-decoration: none;
  transition: border-color 0.2s, background 0.2s, transform 0.15s;
  min-width: 155px;
}

.store-btn:hover {
  border-color: var(--accent);
  background: rgba(16, 185, 129, 0.06);
  color: var(--text-primary);
  transform: translateY(-1px);
}

.store-btn svg { flex-shrink: 0; }

.store-btn-text { display: flex; flex-direction: column; line-height: 1.2; }
.store-btn-text small { font-size: 10px; color: var(--text-tertiary); }
.store-btn-text span { font-size: 14px; font-weight: 600; }

/* ---- Cards ---- */
.card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 28px;
  transition: border-color 0.2s, transform 0.2s, box-shadow 0.2s;
}

.card:hover {
  border-color: rgba(16, 185, 129, 0.3);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.card-icon {
  width: 48px;
  height: 48px;
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid rgba(16, 185, 129, 0.2);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  margin-bottom: 16px;
}

.card-title {
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--text-primary);
}

.card-desc {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ---- Grid ---- */
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }

/* ---- Hero ---- */
.hero {
  padding: 96px 0 80px;
  background: radial-gradient(ellipse at 50% 0%, rgba(16,185,129,0.08) 0%, transparent 65%);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%2310b981' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
  pointer-events: none;
}

.hero-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  font-weight: 600;
  color: var(--accent);
  background: rgba(16,185,129,0.1);
  border: 1px solid rgba(16,185,129,0.25);
  padding: 5px 14px;
  border-radius: 20px;
  margin-bottom: 24px;
}

.hero-badge::before { content: '●'; font-size: 8px; animation: pulse 2s infinite; }

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}

.hero-title {
  font-size: clamp(36px, 5vw, 58px);
  font-weight: 900;
  line-height: 1.1;
  margin-bottom: 20px;
  letter-spacing: -0.02em;
}

.hero-subtitle {
  font-size: 18px;
  color: var(--text-secondary);
  margin-bottom: 36px;
  line-height: 1.7;
  max-width: 480px;
}

.hero-visual {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.phone-mockup {
  width: 260px;
  height: 500px;
  background: var(--bg-secondary);
  border: 1.5px solid var(--border-light);
  border-radius: 40px;
  position: relative;
  overflow: hidden;
  box-shadow: 0 32px 80px rgba(0,0,0,0.6), 0 0 0 1px rgba(255,255,255,0.05);
}

.phone-notch {
  position: absolute;
  top: 16px;
  left: 50%;
  transform: translateX(-50%);
  width: 80px;
  height: 24px;
  background: var(--bg-primary);
  border-radius: 12px;
  z-index: 2;
}

.phone-screen {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, #0f1419 0%, #1a1f26 100%);
  padding: 60px 16px 20px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.mock-header {
  font-size: 18px;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 6px;
}

.mock-card {
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 12px 14px;
}

.mock-card-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 6px;
}

.mock-ticker {
  font-size: 15px;
  font-weight: 700;
  color: var(--text-primary);
}

.mock-score {
  font-size: 13px;
  font-weight: 700;
  color: var(--accent);
  background: rgba(16,185,129,0.12);
  padding: 2px 8px;
  border-radius: 6px;
}

.mock-row {
  display: flex;
  gap: 6px;
}

.mock-tag {
  font-size: 10px;
  color: var(--text-tertiary);
  background: var(--bg-secondary);
  padding: 2px 6px;
  border-radius: 4px;
}

.mock-tag.green { color: var(--accent); background: rgba(16,185,129,0.08); }

/* ---- Stats ---- */
.stats-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--border-color);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin-top: 60px;
}

.stat-item {
  background: var(--bg-secondary);
  padding: 28px 24px;
  text-align: center;
}

.stat-num {
  font-size: 36px;
  font-weight: 900;
  color: var(--accent);
  line-height: 1;
  margin-bottom: 6px;
}

.stat-label {
  font-size: 13px;
  color: var(--text-secondary);
}

/* ---- Feature List ---- */
.feature-list { list-style: none; display: flex; flex-direction: column; gap: 12px; }

.feature-list li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 15px;
  color: var(--text-secondary);
}

.feature-list li::before {
  content: '✓';
  flex-shrink: 0;
  width: 22px;
  height: 22px;
  background: rgba(16,185,129,0.15);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  color: var(--accent);
  font-weight: 700;
  margin-top: 1px;
}

/* ---- FAQ / Accordion ---- */
.faq-item {
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  overflow: hidden;
  margin-bottom: 10px;
}

.faq-question {
  width: 100%;
  padding: 18px 20px;
  background: var(--bg-secondary);
  border: none;
  color: var(--text-primary);
  font-size: 15px;
  font-weight: 600;
  text-align: left;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  transition: background 0.2s;
}

.faq-question:hover { background: var(--bg-tertiary); }
.faq-question .chevron { transition: transform 0.25s; flex-shrink: 0; color: var(--text-secondary); }
.faq-question[aria-expanded="true"] .chevron { transform: rotate(180deg); }

.faq-answer {
  display: none;
  padding: 0 20px 18px;
  background: var(--bg-secondary);
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
}

.faq-answer.open { display: block; }

/* ---- CTA Banner ---- */
.cta-banner {
  background: linear-gradient(135deg, rgba(16,185,129,0.12) 0%, rgba(5,150,105,0.06) 100%);
  border: 1px solid rgba(16,185,129,0.2);
  border-radius: var(--radius-lg);
  padding: 56px 48px;
  text-align: center;
}

/* ---- Footer ---- */
.footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
  padding: 56px 0 32px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 48px;
}

.footer-brand p {
  font-size: 14px;
  color: var(--text-secondary);
  margin-top: 12px;
  max-width: 260px;
  line-height: 1.6;
}

.footer-col h4 {
  font-size: 13px;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: 16px;
}

.footer-col ul { list-style: none; display: flex; flex-direction: column; gap: 10px; }

.footer-col ul li a {
  font-size: 14px;
  color: var(--text-secondary);
  transition: color 0.2s;
}

.footer-col ul li a:hover { color: var(--text-primary); }

.footer-bottom {
  border-top: 1px solid var(--border-color);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.footer-bottom p { font-size: 13px; color: var(--text-tertiary); }

.disclaimer {
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: 10px;
  padding: 16px 20px;
  font-size: 12px;
  color: var(--text-tertiary);
  line-height: 1.6;
  margin-top: 24px;
}

/* ---- Inner page layout ---- */
.page-header {
  padding: 64px 0 48px;
  background: radial-gradient(ellipse at 50% 0%, rgba(16,185,129,0.06) 0%, transparent 60%);
  border-bottom: 1px solid var(--border-color);
  text-align: center;
}

.page-content {
  max-width: 760px;
  margin: 0 auto;
  padding: 56px 24px 80px;
}

.prose h2 {
  font-size: 22px;
  font-weight: 700;
  margin: 36px 0 12px;
  color: var(--text-primary);
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border-color);
}

.prose h3 {
  font-size: 16px;
  font-weight: 700;
  margin: 24px 0 8px;
  color: var(--accent);
}

.prose p {
  font-size: 15px;
  color: var(--text-secondary);
  margin-bottom: 14px;
  line-height: 1.75;
}

.prose ul, .prose ol {
  padding-left: 20px;
  margin-bottom: 14px;
}

.prose ul li, .prose ol li {
  font-size: 15px;
  color: var(--text-secondary);
  margin-bottom: 6px;
  line-height: 1.6;
}

.prose strong { color: var(--text-primary); }

.prose a { color: var(--accent); }

.info-box {
  background: rgba(16,185,129,0.06);
  border: 1px solid rgba(16,185,129,0.2);
  border-radius: 10px;
  padding: 16px 20px;
  margin: 20px 0;
  font-size: 14px;
  color: var(--text-secondary);
}

.warn-box {
  background: rgba(245,158,11,0.06);
  border: 1px solid rgba(245,158,11,0.2);
  border-radius: 10px;
  padding: 16px 20px;
  margin: 20px 0;
  font-size: 14px;
  color: #d97706;
}

/* ---- Contact Form ---- */
.form-group { margin-bottom: 20px; }

.form-group label {
  display: block;
  font-size: 14px;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 8px;
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 10px;
  color: var(--text-primary);
  font-size: 15px;
  font-family: inherit;
  padding: 12px 16px;
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
  -webkit-appearance: none;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(16,185,129,0.12);
}

.form-group textarea { resize: vertical; min-height: 120px; }

.form-success {
  display: none;
  background: rgba(16,185,129,0.08);
  border: 1px solid rgba(16,185,129,0.25);
  border-radius: 10px;
  padding: 20px;
  text-align: center;
  color: var(--accent);
  font-weight: 600;
  margin-top: 16px;
}

/* ---- Responsive ---- */
@media (max-width: 900px) {
  .hero-inner { grid-template-columns: 1fr; text-align: center; }
  .hero-subtitle { margin-left: auto; margin-right: auto; }
  .store-buttons { justify-content: center; }
  .hero-visual { display: none; }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .stats-row { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
  .section { padding: 56px 0; }
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .nav-links { display: none; }
  .nav-links.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: var(--bg-primary);
    border-bottom: 1px solid var(--border-color);
    padding: 16px 24px 24px;
    gap: 16px;
  }
  .nav-hamburger { display: flex; }
  .nav-inner { position: relative; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .cta-banner { padding: 36px 24px; }
  .footer-bottom { flex-direction: column; align-items: flex-start; }
}