/* ==========================================================================
   AeroLog — shared marketing stylesheet
   Reused by index.html and the legal pages (imprint / privacy / terms).
   ========================================================================== */

/* ---- Design tokens ---- */
:root {
  --accent: #4088FF;
  --accent-end: #2659D9;
  --icon-grad-start: #0088ff;
  --icon-grad-end: #00c0e8;

  --header-grad-start: #1A1F33;
  --header-grad-end: #26334D;

  --ink: #1A1F33;
  --ink-soft: #51586b;
  --ink-faint: #8a90a2;
  --bg: #ffffff;
  --bg-alt: #f4f6fb;
  --card-bg: #ffffff;
  --border: #e6e9f2;

  --radius: 14px;
  --shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
  --shadow-soft: 0 2px 8px rgba(0, 0, 0, 0.06);

  --maxw: 1100px;
  --font: -apple-system, BlinkMacSystemFont, "SF Pro Rounded", "SF Pro Text",
    "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

/* ---- Reset / base ---- */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

a {
  color: var(--accent);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

img,
svg {
  display: block;
  max-width: 100%;
}

.container {
  width: 100%;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 24px;
}

/* ==========================================================================
   Header / nav  (COPY VERBATIM into legal pages)
   ========================================================================== */
.site-header {
  background: linear-gradient(135deg, var(--header-grad-start), var(--header-grad-end));
  color: #fff;
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 64px;
  gap: 16px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: #fff;
  font-weight: 700;
  font-size: 1.25rem;
  letter-spacing: -0.02em;
}

.brand:hover {
  text-decoration: none;
}

.brand img {
  width: 30px;
  height: 30px;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 24px;
}

.main-nav a {
  color: rgba(255, 255, 255, 0.85);
  font-size: 0.95rem;
  font-weight: 500;
}

.main-nav a:hover {
  color: #fff;
  text-decoration: none;
}

/* Mobile nav toggle — pure CSS via hidden checkbox */
.nav-toggle {
  display: none;
}

.nav-toggle-label {
  display: none;
  cursor: pointer;
  padding: 8px;
  color: #fff;
  font-size: 1.4rem;
  line-height: 1;
}

@media (max-width: 720px) {
  .nav-toggle-label {
    display: block;
  }

  .main-nav {
    display: none;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    background: var(--header-grad-end);
    padding: 8px 24px 16px;
    z-index: 20;
  }

  .nav-toggle:checked ~ .main-nav {
    display: flex;
  }

  .main-nav a {
    width: 100%;
    padding: 12px 0;
    border-top: 1px solid rgba(255, 255, 255, 0.12);
  }

  .site-header .container {
    position: relative;
    flex-wrap: wrap;
  }
}

/* ==========================================================================
   Hero
   ========================================================================== */
.hero {
  background: linear-gradient(135deg, var(--header-grad-start), var(--header-grad-end));
  color: #fff;
  padding: 72px 0 88px;
  text-align: center;
}

.hero h1 {
  font-size: clamp(2rem, 5vw, 3.25rem);
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin: 0 auto 18px;
  max-width: 14ch;
  font-weight: 800;
}

.hero p {
  font-size: clamp(1.05rem, 2.2vw, 1.25rem);
  color: rgba(255, 255, 255, 0.82);
  max-width: 46ch;
  margin: 0 auto 32px;
}

/* App Store CTA button */
.btn-appstore {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: linear-gradient(135deg, var(--accent), var(--accent-end));
  color: #fff;
  font-weight: 600;
  font-size: 1.05rem;
  padding: 14px 28px;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.btn-appstore:hover {
  text-decoration: none;
  transform: translateY(-2px);
  box-shadow: 0 8px 22px rgba(38, 89, 217, 0.35);
}

.btn-appstore svg {
  width: 22px;
  height: 22px;
  fill: currentColor;
}

/* ==========================================================================
   Sections
   ========================================================================== */
.section {
  padding: 72px 0;
}

.section-alt {
  background: var(--bg-alt);
}

.section h2 {
  font-size: clamp(1.6rem, 3.5vw, 2.25rem);
  letter-spacing: -0.02em;
  text-align: center;
  margin: 0 0 12px;
  font-weight: 800;
}

.section-lead {
  text-align: center;
  color: var(--ink-soft);
  max-width: 52ch;
  margin: 0 auto 48px;
  font-size: 1.05rem;
}

/* ---- Feature grid ---- */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
}

.card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-soft);
  padding: 24px;
}

.card h3 {
  margin: 14px 0 8px;
  font-size: 1.15rem;
  letter-spacing: -0.01em;
}

.card p {
  margin: 0;
  color: var(--ink-soft);
  font-size: 0.97rem;
}

.card-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--icon-grad-start), var(--icon-grad-end));
  color: #fff;
  font-size: 1.4rem;
}

.badge-pro {
  display: inline-block;
  margin-left: 8px;
  padding: 2px 8px;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: #fff;
  background: linear-gradient(135deg, var(--accent), var(--accent-end));
  border-radius: 999px;
  vertical-align: middle;
}

/* ==========================================================================
   Free vs Pro
   ========================================================================== */
.plan-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
  max-width: 760px;
  margin: 0 auto;
}

.plan {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-soft);
  padding: 28px;
}

.plan-pro {
  border-color: var(--accent);
  box-shadow: var(--shadow);
}

.plan h3 {
  margin: 0 0 4px;
  font-size: 1.35rem;
}

.plan .plan-tag {
  color: var(--ink-faint);
  font-size: 0.9rem;
  margin: 0 0 18px;
}

.plan ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.plan li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 8px 0;
  color: var(--ink-soft);
}

.plan li::before {
  content: "✓";
  color: var(--accent);
  font-weight: 700;
  flex-shrink: 0;
}

/* Pricing teaser CTA (index.html "Free & Pro" section) */
.plan-cta {
  text-align: center;
  margin-top: 36px;
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 600;
  font-size: 1rem;
  color: var(--accent);
  padding: 12px 24px;
  border: 1px solid var(--accent);
  border-radius: var(--radius);
  background: var(--card-bg);
  transition: background 0.15s ease, color 0.15s ease, box-shadow 0.15s ease;
}

.btn-secondary:hover {
  text-decoration: none;
  color: #fff;
  background: linear-gradient(135deg, var(--accent), var(--accent-end));
  box-shadow: var(--shadow-soft);
}

/* ==========================================================================
   Pricing page  (pricing.html)
   ========================================================================== */
.pricing-hero {
  background: linear-gradient(135deg, var(--header-grad-start), var(--header-grad-end));
  color: #fff;
  padding: 64px 0 72px;
  text-align: center;
}

.pricing-hero h1 {
  font-size: clamp(2rem, 4.5vw, 2.75rem);
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin: 0 auto 14px;
  font-weight: 800;
}

.pricing-hero p {
  font-size: clamp(1.05rem, 2.2vw, 1.2rem);
  color: rgba(255, 255, 255, 0.82);
  max-width: 44ch;
  margin: 0 auto;
}

.pricing-section {
  padding: 56px 0 72px;
}

/* Side-by-side plan cards; stack on mobile via auto-fit */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
  max-width: 820px;
  margin: 0 auto 28px;
  align-items: start;
}

.price-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-soft);
  padding: 32px 28px;
}

.price-card.featured {
  border-color: var(--accent);
  box-shadow: var(--shadow);
}

.price-card .plan-name {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 4px;
  font-size: 1.4rem;
  letter-spacing: -0.01em;
}

.price-card .plan-tag {
  color: var(--ink-faint);
  font-size: 0.9rem;
  margin: 0 0 22px;
}

/* Free plan headline price */
.price-headline {
  display: flex;
  align-items: baseline;
  gap: 8px;
  margin: 0 0 22px;
}

.price-headline .amount {
  font-size: 2.4rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--ink);
}

.price-headline .period {
  color: var(--ink-soft);
  font-size: 0.95rem;
}

/* Pro pricing — hero yearly price */
.pro-price-hero {
  margin: 0 0 16px;
}

.pro-price-amount {
  display: flex;
  align-items: baseline;
  gap: 8px;
  margin: 0 0 12px;
}

.pro-price-amount .value {
  font-size: 3rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1;
  color: var(--accent);
}

.pro-price-amount .per {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--ink-soft);
}

.pro-price-best {
  display: inline-block;
  padding: 4px 12px;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: #fff;
  background: linear-gradient(135deg, var(--accent), var(--accent-end));
  border-radius: 999px;
}

/* Pro pricing — secondary option boxes */
.pro-price-options {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin: 0 0 24px;
}

.pro-option {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 12px 14px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--bg-alt);
}

.pro-option-amount {
  font-size: 1.2rem;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.pro-option-label {
  font-size: 0.85rem;
  color: var(--ink-soft);
}

/* Stack the option boxes on narrow screens */
@media (max-width: 420px) {
  .pro-price-options {
    grid-template-columns: 1fr;
  }
}

.price-card .includes-label {
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--ink-faint);
  margin: 0 0 8px;
}

.price-card ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.price-card li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 7px 0;
  color: var(--ink-soft);
}

.price-card li::before {
  content: "✓";
  color: var(--accent);
  font-weight: 700;
  flex-shrink: 0;
}

.price-card li.soon {
  color: var(--ink-faint);
  font-style: italic;
}

.price-card li.soon::before {
  content: "+";
  color: var(--ink-faint);
}

.pricing-note {
  text-align: center;
  color: var(--ink-faint);
  font-size: 0.88rem;
  max-width: 52ch;
  margin: 0 auto;
}

/* ==========================================================================
   Footer  (COPY VERBATIM into legal pages)
   ========================================================================== */
.site-footer {
  background: linear-gradient(135deg, var(--header-grad-start), var(--header-grad-end));
  color: rgba(255, 255, 255, 0.75);
  padding: 40px 0;
  font-size: 0.92rem;
}

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

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
}

.footer-links a {
  color: rgba(255, 255, 255, 0.85);
}

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

.site-footer .copyright a {
  color: rgba(255, 255, 255, 0.85);
}

/* ==========================================================================
   Legal pages  (reusable readable content column)
   Wrap legal body copy in: <main class="legal"><div class="container"> ... </div></main>
   ========================================================================== */
.legal {
  padding: 56px 0 72px;
}

.legal .container {
  max-width: 720px;
}

.legal h1 {
  font-size: clamp(1.8rem, 4vw, 2.4rem);
  letter-spacing: -0.02em;
  margin: 0 0 8px;
  font-weight: 800;
}

.legal .updated {
  color: var(--ink-faint);
  font-size: 0.9rem;
  margin: 0 0 36px;
}

.legal h2 {
  font-size: 1.4rem;
  letter-spacing: -0.01em;
  margin: 40px 0 12px;
}

.legal h3 {
  font-size: 1.1rem;
  margin: 28px 0 8px;
}

.legal p {
  color: var(--ink-soft);
  margin: 0 0 16px;
}

.legal ul,
.legal ol {
  color: var(--ink-soft);
  margin: 0 0 16px;
  padding-left: 22px;
}

.legal li {
  margin: 6px 0;
}

.legal a {
  word-break: break-word;
}