/* ==========================================================================
   AUSGERAUCHT Landing Page Stylesheet
   Modern, Dark-Mode Glassmorphism, Responsive & Ultra-Clean
   ========================================================================== */

:root {
  --bg-main: #090d16;
  --bg-card: rgba(17, 24, 39, 0.75);
  --bg-card-hover: rgba(30, 41, 59, 0.85);
  --bg-glass: rgba(255, 255, 255, 0.04);
  --border-glass: rgba(255, 255, 255, 0.08);
  --border-focus: rgba(16, 185, 129, 0.5);

  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --text-dim: #64748b;

  --primary: #10b981;       /* Emerald */
  --primary-glow: rgba(16, 185, 129, 0.35);
  --primary-dark: #059669;

  --accent-cyan: #06b6d4;   /* Cyan */
  --accent-amber: #f59e0b;  /* Amber */
  --accent-rose: #f43f5e;   /* Rose */
  --accent-purple: #8b5cf6; /* Violet */

  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 22px;
  --radius-xl: 32px;
  --transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
  scroll-behavior: smooth;
  font-family: var(--font-sans);
  background-color: var(--bg-main);
  color: var(--text-main);
  line-height: 1.6;
}

body {
  overflow-x: hidden;
  background: radial-gradient(circle at 50% -20%, #1e293b 0%, #090d16 60%);
  min-height: 100vh;
}

/* Background Gradients */
.glow-blob {
  position: absolute;
  width: 500px;
  height: 500px;
  border-radius: 50%;
  filter: blur(120px);
  pointer-events: none;
  z-index: 0;
  opacity: 0.18;
}
.glow-blob-1 {
  top: 50px;
  left: -100px;
  background: var(--primary);
}
.glow-blob-2 {
  top: 600px;
  right: -100px;
  background: var(--accent-cyan);
}
.glow-blob-3 {
  top: 1800px;
  left: 20%;
  background: var(--accent-purple);
}

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

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

.gradient-text {
  background: linear-gradient(135deg, #10b981 0%, #06b6d4 50%, #38bdf8 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.gradient-text-amber {
  background: linear-gradient(135deg, #f59e0b 0%, #f97316 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* Header & Navigation */
.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  background: rgba(9, 13, 22, 0.8);
  border-bottom: 1px solid var(--border-glass);
  padding: 16px 0;
  transition: var(--transition);
}

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

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  font-weight: 800;
  font-size: 1.25rem;
  letter-spacing: -0.02em;
  color: var(--text-main);
}

.logo-badge {
  background: linear-gradient(135deg, var(--primary), var(--accent-cyan));
  width: 36px;
  height: 36px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  box-shadow: 0 4px 14px var(--primary-glow);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 24px;
  list-style: none;
}

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

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

.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: var(--radius-md);
  font-size: 0.95rem;
  font-weight: 600;
  text-decoration: none;
  transition: var(--transition);
  cursor: pointer;
  border: 1px solid transparent;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  color: #fff;
  box-shadow: 0 4px 20px var(--primary-glow);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 26px rgba(16, 185, 129, 0.5);
}

.btn-secondary {
  background: var(--bg-glass);
  border: 1px solid var(--border-glass);
  color: var(--text-main);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.2);
  transform: translateY(-2px);
}

.btn-accent {
  background: linear-gradient(135deg, #06b6d4 0%, #0284c7 100%);
  color: #fff;
  box-shadow: 0 4px 18px rgba(6, 182, 212, 0.35);
}

.btn-accent:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(6, 182, 212, 0.5);
}

.btn-sm {
  padding: 8px 14px;
  font-size: 0.85rem;
  border-radius: var(--radius-sm);
}

/* Hero Section */
.hero {
  padding: 80px 0 60px;
  text-align: center;
  position: relative;
}

.hero-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid rgba(16, 185, 129, 0.3);
  padding: 6px 16px;
  border-radius: 9999px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--primary);
  margin-bottom: 24px;
}

.hero h1 {
  font-size: clamp(2.2rem, 5vw, 3.8rem);
  letter-spacing: -0.03em;
  margin-bottom: 20px;
}

.hero-subtitle {
  font-size: clamp(1.05rem, 2vw, 1.3rem);
  color: var(--text-muted);
  max-width: 780px;
  margin: 0 auto 36px;
}

.hero-actions {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 48px;
}

.hero-badges {
  display: flex;
  justify-content: center;
  gap: 20px;
  flex-wrap: wrap;
  color: var(--text-dim);
  font-size: 0.88rem;
  font-weight: 500;
}

.hero-badge-item {
  display: flex;
  align-items: center;
  gap: 6px;
}

.hero-badge-item span.icon {
  color: var(--primary);
}

/* Metrics Banner */
.metrics-banner {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
  margin: 40px 0 80px;
}

.metric-card {
  background: var(--bg-card);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  padding: 24px;
  text-align: center;
  backdrop-filter: blur(12px);
  transition: var(--transition);
}

.metric-card:hover {
  border-color: rgba(255, 255, 255, 0.18);
  transform: translateY(-3px);
}

.metric-value {
  font-size: 2.5rem;
  font-weight: 800;
  line-height: 1;
  margin-bottom: 8px;
}

.metric-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 6px;
}

.metric-desc {
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* Section Header */
.section-header {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 48px;
}

.section-tag {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--primary);
  margin-bottom: 12px;
}

.section-title {
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}

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

/* Glass Card */
.glass-card {
  background: var(--bg-card);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  padding: 32px;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

/* Interactive Calculator */
.calc-section {
  padding: 60px 0 90px;
}

.calc-grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 32px;
  align-items: stretch;
}

.calc-input-group {
  margin-bottom: 24px;
}

.calc-input-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 8px;
}

.calc-label {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-main);
}

.calc-value-display {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--primary);
  background: rgba(16, 185, 129, 0.1);
  padding: 2px 10px;
  border-radius: var(--radius-sm);
}

.slider {
  width: 100%;
  height: 8px;
  border-radius: 4px;
  background: #1e293b;
  outline: none;
  -webkit-appearance: none;
  cursor: pointer;
}

.slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--primary);
  box-shadow: 0 0 10px var(--primary-glow);
  cursor: pointer;
  transition: transform 0.1s;
}

.slider::-webkit-slider-thumb:hover {
  transform: scale(1.15);
}

.slider::-moz-range-thumb {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--primary);
  border: none;
  cursor: pointer;
}

.calc-results {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  background: linear-gradient(145deg, rgba(16, 185, 129, 0.08) 0%, rgba(6, 182, 212, 0.05) 100%);
  border: 1px solid rgba(16, 185, 129, 0.25);
}

.result-hero {
  text-align: center;
  padding: 20px 0;
  border-bottom: 1px solid var(--border-glass);
}

.result-hero-label {
  font-size: 0.9rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 600;
}

.result-hero-amount {
  font-size: clamp(2.4rem, 4vw, 3.2rem);
  font-weight: 900;
  color: var(--primary);
  line-height: 1.2;
}

.result-grid-small {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin: 20px 0;
}

.result-box {
  background: rgba(0, 0, 0, 0.25);
  border: 1px solid var(--border-glass);
  padding: 16px;
  border-radius: var(--radius-md);
  text-align: center;
}

.result-box-val {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--text-main);
}

.result-box-lbl {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.result-perk {
  background: rgba(255, 255, 255, 0.03);
  border-left: 3px solid var(--accent-amber);
  padding: 12px 16px;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-size: 0.88rem;
  color: var(--text-muted);
}

.result-perk strong {
  color: var(--text-main);
}

/* HSI Screener Section */
.hsi-section {
  padding: 60px 0 90px;
}

.hsi-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 32px;
}

.hsi-question {
  margin-bottom: 28px;
}

.hsi-question-title {
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 14px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.hsi-q-num {
  background: var(--bg-glass);
  border: 1px solid var(--border-glass);
  width: 26px;
  height: 26px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  color: var(--primary);
}

.hsi-options {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.hsi-btn {
  background: rgba(15, 23, 42, 0.8);
  border: 1px solid var(--border-glass);
  color: var(--text-muted);
  padding: 14px 16px;
  border-radius: var(--radius-md);
  font-size: 0.9rem;
  font-weight: 500;
  text-align: left;
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.hsi-btn:hover {
  background: rgba(30, 41, 59, 0.8);
  border-color: rgba(255, 255, 255, 0.15);
  color: var(--text-main);
}

.hsi-btn.active {
  background: rgba(16, 185, 129, 0.15);
  border-color: var(--primary);
  color: var(--text-main);
  box-shadow: 0 0 16px rgba(16, 185, 129, 0.2);
}

.hsi-btn.active .hsi-pts {
  color: var(--primary);
  font-weight: 700;
}

.hsi-pts {
  font-size: 0.75rem;
  color: var(--text-dim);
}

.hsi-result-card {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  border: 1px solid var(--border-glass);
  transition: var(--transition);
}

.hsi-score-header {
  text-align: center;
  padding: 20px 0;
  border-bottom: 1px solid var(--border-glass);
}

.hsi-score-badge {
  display: inline-block;
  font-size: 3.5rem;
  font-weight: 900;
  line-height: 1;
  color: var(--primary);
  margin-bottom: 4px;
}

.hsi-score-label {
  font-size: 1.15rem;
  font-weight: 700;
}

.hsi-meter-container {
  margin: 20px 0;
}

.hsi-meter-bar {
  height: 10px;
  background: #1e293b;
  border-radius: 9999px;
  overflow: hidden;
  position: relative;
}

.hsi-meter-fill {
  height: 100%;
  width: 33%;
  background: linear-gradient(90deg, #10b981, #f59e0b, #f43f5e);
  border-radius: 9999px;
  transition: width 0.4s ease;
}

.hsi-advice {
  background: rgba(0, 0, 0, 0.25);
  border: 1px solid var(--border-glass);
  padding: 16px;
  border-radius: var(--radius-md);
  margin-bottom: 16px;
  font-size: 0.9rem;
}

.gba-indicator {
  background: rgba(245, 158, 11, 0.12);
  border: 1px solid rgba(245, 158, 11, 0.35);
  border-radius: var(--radius-md);
  padding: 14px 18px;
  font-size: 0.88rem;
}

.gba-indicator strong {
  color: #fbbf24;
  display: block;
  margin-bottom: 4px;
}

/* 3-Minute Wavebreaker Breathing Exercise */
.wavebreaker-section {
  padding: 60px 0 90px;
}

.wavebreaker-box {
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
}

.breathing-display {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  margin: 36px 0;
}

.breathing-circle-outer {
  width: 220px;
  height: 220px;
  border-radius: 50%;
  border: 2px dashed rgba(16, 185, 129, 0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  transition: all 4s ease-in-out;
}

.breathing-circle-inner {
  width: 140px;
  height: 140px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(16, 185, 129, 0.4) 0%, rgba(6, 182, 212, 0.2) 100%);
  border: 1px solid rgba(16, 185, 129, 0.6);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  transition: all 4s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 0 0 30px rgba(16, 185, 129, 0.25);
}

/* Animation states for breathing */
.breathing-circle-outer.inhale .breathing-circle-inner {
  transform: scale(1.4);
  box-shadow: 0 0 50px rgba(16, 185, 129, 0.6);
  background: radial-gradient(circle, rgba(16, 185, 129, 0.6) 0%, rgba(6, 182, 212, 0.35) 100%);
}

.breathing-circle-outer.hold .breathing-circle-inner {
  transform: scale(1.4);
  border-color: #38bdf8;
  box-shadow: 0 0 50px rgba(56, 189, 248, 0.5);
}

.breathing-circle-outer.exhale .breathing-circle-inner {
  transform: scale(0.85);
  box-shadow: 0 0 20px rgba(16, 185, 129, 0.15);
}

.breathing-circle-outer.pause .breathing-circle-inner {
  transform: scale(0.85);
  border-color: #64748b;
  box-shadow: 0 0 10px rgba(100, 116, 139, 0.2);
}

.breathing-phase-text {
  font-size: 1.1rem;
  font-weight: 700;
  color: #fff;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.5);
}

.breathing-timer-sub {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-top: 4px;
}

.countdown-timer {
  font-size: 2rem;
  font-weight: 800;
  color: var(--accent-cyan);
  margin: 16px 0;
  font-variant-numeric: tabular-nums;
}

.vagus-tips-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
  margin-top: 32px;
  text-align: left;
}

.vagus-tip-card {
  background: rgba(0, 0, 0, 0.3);
  border: 1px solid var(--border-glass);
  padding: 16px;
  border-radius: var(--radius-md);
  font-size: 0.85rem;
}

.vagus-tip-card strong {
  display: block;
  color: var(--text-main);
  margin-bottom: 4px;
}

/* 4 Pillars Section */
.pillars-section {
  padding: 60px 0 90px;
}

.pillars-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(270px, 1fr));
  gap: 24px;
}

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

.pillar-card:hover {
  border-color: rgba(255, 255, 255, 0.18);
  transform: translateY(-4px);
  background: var(--bg-card-hover);
}

.pillar-icon-box {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 20px;
}

.icon-emerald {
  background: rgba(16, 185, 129, 0.15);
  color: var(--primary);
  border: 1px solid rgba(16, 185, 129, 0.3);
}

.icon-cyan {
  background: rgba(6, 182, 212, 0.15);
  color: var(--accent-cyan);
  border: 1px solid rgba(6, 182, 212, 0.3);
}

.icon-amber {
  background: rgba(245, 158, 11, 0.15);
  color: var(--accent-amber);
  border: 1px solid rgba(245, 158, 11, 0.3);
}

.icon-purple {
  background: rgba(139, 92, 246, 0.15);
  color: var(--accent-purple);
  border: 1px solid rgba(139, 92, 246, 0.3);
}

.pillar-card h3 {
  font-size: 1.25rem;
  margin-bottom: 12px;
}

.pillar-card p {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.55;
  margin-bottom: 16px;
}

.pillar-evidence-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-dim);
  background: rgba(255, 255, 255, 0.04);
  padding: 4px 10px;
  border-radius: 9999px;
  border: 1px solid var(--border-glass);
}

/* App Showcase Section */
.showcase-section {
  padding: 60px 0 90px;
}

.tab-nav {
  display: flex;
  justify-content: center;
  gap: 12px;
  margin-bottom: 40px;
  flex-wrap: wrap;
}

.tab-btn {
  background: var(--bg-card);
  border: 1px solid var(--border-glass);
  color: var(--text-muted);
  padding: 12px 24px;
  border-radius: 9999px;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  align-items: center;
  gap: 8px;
}

.tab-btn:hover {
  color: var(--text-main);
  border-color: rgba(255, 255, 255, 0.2);
}

.tab-btn.active {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
  box-shadow: 0 4px 18px var(--primary-glow);
}

.tab-content {
  display: none;
  animation: fadeIn 0.35s ease forwards;
}

.tab-content.active {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

.showcase-phone {
  background: #0f172a;
  border: 10px solid #1e293b;
  border-radius: 44px;
  box-shadow: 0 25px 60px -15px rgba(0, 0, 0, 0.7), 0 0 40px rgba(16, 185, 129, 0.15);
  max-width: 360px;
  margin: 0 auto;
  overflow: hidden;
  position: relative;
}

.phone-screen {
  background: #090d16;
  padding: 20px 16px;
  min-height: 520px;
}

.phone-header-mock {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid var(--border-glass);
  padding-bottom: 12px;
  margin-bottom: 16px;
}

.phone-card {
  background: #111827;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-md);
  padding: 14px;
  margin-bottom: 12px;
}

.phone-counter {
  text-align: center;
  padding: 18px;
  background: linear-gradient(135deg, rgba(16, 185, 129, 0.15), rgba(6, 182, 212, 0.05));
  border: 1px solid rgba(16, 185, 129, 0.3);
  border-radius: var(--radius-lg);
  margin-bottom: 14px;
}

.phone-counter-num {
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--primary);
  line-height: 1;
}

.phone-counter-label {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 4px;
}

/* Milestone Timeline */
.timeline-section {
  padding: 60px 0 90px;
}

.timeline {
  position: relative;
  max-width: 860px;
  margin: 0 auto;
  padding: 20px 0;
}

.timeline::before {
  content: '';
  position: absolute;
  top: 0;
  bottom: 0;
  left: 20px;
  width: 2px;
  background: linear-gradient(to bottom, var(--primary), var(--accent-cyan), var(--accent-purple));
}

.timeline-item {
  position: relative;
  padding-left: 60px;
  margin-bottom: 32px;
}

.timeline-dot {
  position: absolute;
  left: 11px;
  top: 4px;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--bg-main);
  border: 3px solid var(--primary);
  box-shadow: 0 0 10px var(--primary-glow);
}

.timeline-time {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--primary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 4px;
}

.timeline-title {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 4px;
}

.timeline-desc {
  font-size: 0.9rem;
  color: var(--text-muted);
}

/* FAQ Accordion */
.faq-section {
  padding: 60px 0 90px;
}

.faq-list {
  max-width: 800px;
  margin: 0 auto;
}

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

.faq-item:hover {
  border-color: rgba(255, 255, 255, 0.15);
}

.faq-question {
  padding: 20px 24px;
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-main);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  user-select: none;
}

.faq-question .icon {
  font-size: 1.2rem;
  color: var(--primary);
  transition: transform 0.25s ease;
}

.faq-item.open .faq-question .icon {
  transform: rotate(45deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease, padding 0.3s ease;
  padding: 0 24px;
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.6;
}

.faq-item.open .faq-answer {
  max-height: 300px;
  padding: 0 24px 20px;
}

/* CTA Download Banner */
.cta-banner {
  background: radial-gradient(circle at 50% 0%, rgba(16, 185, 129, 0.25) 0%, rgba(9, 13, 22, 0.9) 70%);
  border: 1px solid rgba(16, 185, 129, 0.35);
  border-radius: var(--radius-xl);
  padding: 60px 40px;
  text-align: center;
  margin: 40px 0 80px;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5);
  position: relative;
  overflow: hidden;
}

.cta-banner h2 {
  font-size: clamp(2rem, 4vw, 2.8rem);
  margin-bottom: 16px;
}

.cta-banner p {
  color: var(--text-muted);
  font-size: 1.1rem;
  max-width: 600px;
  margin: 0 auto 36px;
}

.cta-buttons {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

.qr-preview-box {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  background: rgba(0, 0, 0, 0.4);
  border: 1px solid var(--border-glass);
  padding: 16px;
  border-radius: var(--radius-md);
  margin-top: 28px;
}

.qr-image {
  width: 140px;
  height: 140px;
  border-radius: var(--radius-sm);
  background: #fff;
  padding: 6px;
}

.qr-label {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 8px;
}

/* Evidence Sources Box */
.sources-box {
  background: rgba(0, 0, 0, 0.3);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  padding: 28px;
  margin-bottom: 60px;
}

.sources-box h4 {
  font-size: 1rem;
  margin-bottom: 14px;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.sources-list {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 12px;
  font-size: 0.85rem;
  color: var(--text-muted);
}

.sources-list li {
  padding-left: 18px;
  position: relative;
}

.sources-list li::before {
  content: '•';
  color: var(--primary);
  position: absolute;
  left: 0;
  font-weight: bold;
}

/* Footer */
footer {
  border-top: 1px solid var(--border-glass);
  padding: 48px 0 32px;
  color: var(--text-dim);
  font-size: 0.85rem;
}

.footer-disclaimer {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-md);
  padding: 16px 20px;
  margin-bottom: 32px;
  font-size: 0.8rem;
  line-height: 1.5;
  color: #64748b;
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
}

/* Responsive adjustments */
@media (max-width: 900px) {
  .calc-grid,
  .hsi-grid,
  .tab-content.active {
    grid-template-columns: 1fr;
  }

  .nav-links {
    display: none;
  }
}

@media (max-width: 600px) {
  .hero-actions,
  .cta-buttons {
    flex-direction: column;
    width: 100%;
  }

  .btn {
    width: 100%;
  }

  .hsi-options {
    grid-template-columns: 1fr;
  }
}