/* Scandinavian / Hygge Design System Matching Exact Medication Tracker iOS App UI */

:root {
  /* Colors - Matched to Native App UI Tokens */
  --color-bg: #F6F6F4;
  --color-surface: #FFFFFF;
  --color-surface-secondary: #F0F1F3;
  --color-surface-elevated: #FFFFFF;
  --color-border: #E2E5EA;
  --color-border-subtle: #ECEEEF;
  
  --color-text-primary: #111827;
  --color-text-secondary: #5F6877;
  --color-text-muted: #8A93A3;
  
  /* Primary Accent: Indigo / Slate Blue matching the App UI (e.g. active tab, selected date, primary button) */
  --color-accent: #5B5FAF;
  --color-accent-hover: #4A4E98;
  --color-accent-light: #ECEEFA;

  /* Secondary Accents */
  --color-teal: #2E7D53;
  --color-teal-light: #EAF5EE;
  --color-amber: #B8731A;
  --color-amber-light: #FFF4DF;

  /* Typography */
  --font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'SF Pro Text', 'Inter', 'Segoe UI', Roboto, sans-serif;
  
  /* Shadows & Elevation */
  --shadow-sm: 0 2px 8px rgba(17, 24, 39, 0.04);
  --shadow-md: 0 8px 24px rgba(17, 24, 39, 0.06);
  --shadow-lg: 0 16px 40px rgba(17, 24, 39, 0.08);

  /* Radius */
  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --radius-full: 9999px;

  /* Layout */
  --max-width: 1140px;
  --header-height: 80px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --color-bg: #0D131D;
    --color-surface: #18212F;
    --color-surface-secondary: #202B3B;
    --color-surface-elevated: #263246;
    --color-border: #2C3747;
    --color-border-subtle: #222C3A;

    --color-text-primary: #F7F8FA;
    --color-text-secondary: #B7C0CC;
    --color-text-muted: #7E8998;

    --color-accent: #A7AEFF;
    --color-accent-hover: #8D95FF;
    --color-accent-light: #1E2342;
    --color-teal: #69C58D;
    --color-teal-light: #183629;
    --color-amber: #E4A64D;
    --color-amber-light: #3A2C18;

    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.2);
    --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.4);
  }
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-family);
  background-color: var(--color-bg);
  color: var(--color-text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

a {
  color: var(--color-accent);
  text-decoration: none;
  transition: opacity 0.2s ease;
}

a:hover {
  opacity: 0.85;
}

/* Layout Containers */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 100px 0;
}

.section-title {
  font-size: 2.5rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.2;
  margin-bottom: 16px;
  text-align: center;
}

.section-subtitle {
  font-size: 1.25rem;
  color: var(--color-text-secondary);
  text-align: center;
  max-width: 640px;
  margin: 0 auto 60px auto;
  font-weight: 400;
}

/* Header & Navigation */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  background: rgba(246, 246, 244, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  z-index: 1000;
  border-bottom: 1px solid var(--color-border-subtle);
  transition: all 0.3s ease;
}

@media (prefers-color-scheme: dark) {
  .header {
    background: rgba(13, 19, 29, 0.85);
  }
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  max-width: 1240px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-text-primary);
  text-decoration: none;
  white-space: nowrap;
}

.brand-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-sm);
  flex-shrink: 0;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 20px;
  list-style: none;
  transition: all 0.2s ease;
}

.nav-link {
  color: var(--color-text-secondary);
  font-weight: 500;
  font-size: 0.88rem;
  text-decoration: none;
  white-space: nowrap;
}

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

/* Button Styles - Matched to App Accent Button (`Unlock for US$5.99`) */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 14px 28px;
  border-radius: var(--radius-full);
  font-weight: 600;
  font-size: 1rem;
  transition: transform 0.2s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.2s ease, background-color 0.2s ease;
  cursor: pointer;
  border: none;
}

.btn-primary {
  background-color: var(--color-accent);
  color: #FFFFFF;
  box-shadow: 0 4px 16px rgba(91, 95, 175, 0.3);
}

.btn-primary:hover {
  background-color: var(--color-accent-hover);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(91, 95, 175, 0.4);
  opacity: 1;
}

.btn-secondary {
  background-color: var(--color-surface);
  color: var(--color-text-primary);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
}

.btn-secondary:hover {
  background-color: var(--color-surface-secondary);
  transform: translateY(-2px);
  opacity: 1;
}

/* Hero Section */
.hero {
  padding-top: calc(var(--header-height) + 60px);
  padding-bottom: 80px;
  text-align: center;
  overflow: hidden;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  background-color: var(--color-accent-light);
  color: var(--color-accent);
  border-radius: var(--radius-full);
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: 24px;
}

.hero-title {
  font-size: 3.5rem;
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.03em;
  margin-bottom: 24px;
  max-width: 840px;
  margin-left: auto;
  margin-right: auto;
}

.hero-title span {
  color: var(--color-accent);
}

.hero-description {
  font-size: 1.35rem;
  color: var(--color-text-secondary);
  max-width: 680px;
  margin: 0 auto 36px auto;
  line-height: 1.5;
  font-weight: 400;
}

.hero-ctas {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin-bottom: 48px;
}

.hero-trust-tag {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 20px;
}

.hero-trust-tag span {
  display: flex;
  align-items: center;
  gap: 6px;
}

.hero-mockup-wrapper {
  margin-top: 60px;
  position: relative;
  display: flex;
  justify-content: center;
}

.hero-screenshot {
  max-width: 320px;
  border-radius: 36px;
  box-shadow: var(--shadow-lg), 0 0 0 10px rgba(255, 255, 255, 0.6);
  transform: translateY(0);
  transition: transform 0.5s ease;
}

.hero-screenshot:hover {
  transform: translateY(-8px);
}

/* Feature Cards Grid */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 32px;
}

.feature-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 40px 32px;
  box-shadow: var(--shadow-sm);
  transition: all 0.3s ease;
}

.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--color-accent);
}

.feature-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  background: var(--color-accent-light);
  color: var(--color-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 24px;
}

.feature-title {
  font-size: 1.35rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.feature-desc {
  color: var(--color-text-secondary);
  font-size: 1rem;
  line-height: 1.6;
}

/* Gallery Showcase */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 28px;
  align-items: start;
}

.gallery-item {
  text-align: center;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 20px 16px 28px 16px;
  box-shadow: var(--shadow-sm);
}

.gallery-img {
  border-radius: var(--radius-md);
  margin-bottom: 16px;
  box-shadow: var(--shadow-sm);
  max-width: 100%;
}

.gallery-caption-title {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 6px;
}

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

/* Privacy Focus Section */
.privacy-box {
  background: var(--color-surface);
  border: 2px solid var(--color-accent);
  border-radius: var(--radius-xl);
  padding: 60px 48px;
  box-shadow: var(--shadow-md);
}

.privacy-header {
  display: flex;
  align-items: center;
  gap: 20px;
  margin-bottom: 32px;
}

.privacy-badge-icon {
  width: 64px;
  height: 64px;
  border-radius: var(--radius-md);
  background: var(--color-accent-light);
  color: var(--color-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  flex-shrink: 0;
}

.privacy-header-text h3 {
  font-size: 1.75rem;
  font-weight: 700;
}

.privacy-header-text p {
  color: var(--color-text-secondary);
}

.privacy-points {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 24px;
}

.privacy-point {
  display: flex;
  align-items: flex-start;
  gap: 16px;
}

.privacy-point-icon {
  color: var(--color-accent);
  font-weight: bold;
  font-size: 1.25rem;
  margin-top: 2px;
}

.privacy-point-text h4 {
  font-weight: 600;
  margin-bottom: 4px;
}

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

/* Pricing Section */
.pricing-card {
  max-width: 480px;
  margin: 0 auto;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: 48px 40px;
  text-align: center;
  box-shadow: var(--shadow-md);
  position: relative;
}

.pricing-badge {
  position: absolute;
  top: -16px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-accent);
  color: #FFFFFF;
  padding: 4px 16px;
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.pricing-price {
  font-size: 3.5rem;
  font-weight: 800;
  margin: 16px 0 8px 0;
  line-height: 1;
  color: var(--color-text-primary);
}

.pricing-subtext {
  color: var(--color-text-secondary);
  font-size: 0.95rem;
  margin-bottom: 32px;
}

.pricing-features {
  list-style: none;
  text-align: left;
  margin-bottom: 36px;
}

.pricing-features li {
  padding: 10px 0;
  border-bottom: 1px solid var(--color-border-subtle);
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--color-text-secondary);
  font-size: 0.95rem;
}

.pricing-features li::before {
  content: "✓";
  color: var(--color-accent);
  font-weight: bold;
}

/* FAQ Section */
.faq-grid {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.faq-item {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 24px 32px;
}

.faq-question {
  font-size: 1.2rem;
  font-weight: 600;
  margin-bottom: 10px;
  color: var(--color-text-primary);
}

.faq-answer {
  color: var(--color-text-secondary);
  font-size: 0.95rem;
  line-height: 1.6;
}

/* Privacy Policy Section */
.policy-container {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: 60px 48px;
  box-shadow: var(--shadow-sm);
  max-width: 900px;
  margin: 0 auto;
}

.policy-content h3 {
  font-size: 1.35rem;
  font-weight: 700;
  margin: 32px 0 12px 0;
  color: var(--color-text-primary);
}

.policy-content h3:first-of-type {
  margin-top: 0;
}

.policy-content p, .policy-content ul {
  color: var(--color-text-secondary);
  font-size: 0.95rem;
  margin-bottom: 16px;
}

.policy-content ul {
  padding-left: 24px;
}

.policy-content li {
  margin-bottom: 8px;
}

/* Footer */
.footer {
  background: var(--color-surface-secondary);
  border-top: 1px solid var(--color-border);
  padding: 60px 0 40px 0;
}

.footer-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 24px;
  text-align: center;
}

.footer-links {
  display: flex;
  gap: 24px;
  list-style: none;
}

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

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

/* Responsive adjustments */
@media (max-width: 1150px) {
  .nav-links {
    gap: 16px;
  }
  .nav-link {
    font-size: 0.85rem;
  }
}

@media (max-width: 1024px) {
  .nav-links {
    display: none;
  }
}

@media (max-width: 768px) {
  .brand span {
    display: none;
  }

  .hero-title {
    font-size: 2.4rem;
  }

  .hero-description {
    font-size: 1.1rem;
  }

  .section-title {
    font-size: 2rem;
  }

  .policy-container, .privacy-box {
    padding: 32px 24px;
  }
}


/* Navigation Actions & Language Picker styles */
.nav-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

.lang-picker {
  background-color: var(--color-surface);
  color: var(--color-text-primary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  padding: 8px 16px;
  font-size: 0.9rem;
  font-weight: 500;
  font-family: var(--font-family);
  cursor: pointer;
  outline: none;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
  appearance: none;
  background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%235F6877' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6 9 12 15 18 9'%3e%3c/polyline%3e%3c/svg%3e");
  background-repeat: no-repeat;
  background-position: right 12px center;
  background-size: 14px;
  padding-right: 32px;
}

@media (prefers-color-scheme: dark) {
  .lang-picker {
    background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23B7C0CC' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6 9 12 15 18 9'%3e%3c/polyline%3e%3c/svg%3e");
  }
}

.lang-picker:hover {
  border-color: var(--color-text-muted);
}

.lang-picker:focus {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px var(--color-accent-light);
}

/* Header button adjustment */
.header .btn {
  padding: 10px 20px;
  font-size: 0.9rem;
}

@media (max-width: 768px) {
  .nav-actions {
    gap: 8px;
  }
  .lang-picker {
    padding: 6px 12px;
    padding-right: 28px;
    font-size: 0.85rem;
    background-position: right 8px center;
    background-size: 12px;
  }
  .header .btn {
    padding: 8px 14px;
    font-size: 0.85rem;
  }
}