/* ===== Orbit Website — Design Tokens & Styles ===== */

:root {
  /* Brand colors */
  --color-primary: #3366ff;
  --color-primary-dark: #2952cc;
  --color-primary-light: #618aff;

  /* Backgrounds */
  --color-bg: #ffffff;
  --color-bg-secondary: #f8fafc;
  --color-bg-dark: #0f172a;

  /* Text */
  --color-text: #1a1a2e;
  --color-text-secondary: #64748b;
  --color-text-inverse: #ffffff;

  /* Borders */
  --color-border: #e2e8f0;

  /* Semantic */
  --color-success: #22c55e;

  /* Spacing (4pt grid from Design.swift) */
  --space-xs: 4px;
  --space-s: 8px;
  --space-m: 12px;
  --space-l: 16px;
  --space-xl: 24px;
  --space-2xl: 48px;
  --space-3xl: 64px;

  /* Radii */
  --radius-s: 8px;
  --radius-m: 12px;
  --radius-l: 16px;

  /* Shadow */
  --shadow-card: 0 2px 6px rgba(0, 0, 0, 0.06);

  /* Typography */
  --font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'Segoe UI', system-ui, sans-serif;

  /* Layout */
  --max-width: 960px;
  --max-width-narrow: 720px;
}

/* ===== Reset ===== */

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

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

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

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

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

a:hover {
  text-decoration: underline;
}

/* ===== Layout ===== */

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-xl);
}

.container--narrow {
  max-width: var(--max-width-narrow);
}

/* ===== Header ===== */

.header {
  border-bottom: 1px solid var(--color-border);
  padding: var(--space-l) 0;
  position: sticky;
  top: 0;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: 100;
}

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

.header__brand {
  display: flex;
  align-items: center;
  gap: var(--space-s);
  font-weight: 700;
  font-size: 1.125rem;
  color: var(--color-text);
  text-decoration: none;
}

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

.header__icon {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-s);
}

.header__nav {
  display: flex;
  gap: var(--space-xl);
  list-style: none;
}

.header__nav a {
  color: var(--color-text-secondary);
  font-size: 0.875rem;
  font-weight: 500;
  transition: color 0.2s;
}

.header__nav a:hover {
  color: var(--color-primary);
  text-decoration: none;
}

/* Mobile nav toggle */
.header__menu-btn {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-s);
  color: var(--color-text);
}

/* ===== Hero ===== */

.hero {
  padding: var(--space-3xl) 0;
  text-align: center;
}

.hero__tagline {
  font-size: 2.5rem;
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.02em;
  max-width: 700px;
  margin: 0 auto var(--space-xl);
}

.hero__subtitle {
  font-size: 1.125rem;
  color: var(--color-text-secondary);
  max-width: 560px;
  margin: 0 auto var(--space-2xl);
  line-height: 1.7;
}

.hero__cta {
  display: inline-block;
}

.hero__cta img {
  height: 48px;
  width: auto;
}

/* ===== Section ===== */

.section {
  padding: var(--space-3xl) 0;
}

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

.section__title {
  font-size: 1.75rem;
  font-weight: 700;
  text-align: center;
  margin-bottom: var(--space-2xl);
  letter-spacing: -0.01em;
}

.section__subtitle {
  text-align: center;
  color: var(--color-text-secondary);
  max-width: 560px;
  margin: calc(-1 * var(--space-xl)) auto var(--space-2xl);
}

/* ===== Steps (How it works) ===== */

.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-2xl);
  list-style: none;
}

.step {
  text-align: center;
}

.step__number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--color-primary);
  color: var(--color-text-inverse);
  font-weight: 700;
  font-size: 1.25rem;
  margin-bottom: var(--space-l);
}

.step__title {
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: var(--space-s);
}

.step__desc {
  font-size: 0.9375rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
}

/* ===== Feature Cards ===== */

.features {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-xl);
  list-style: none;
}

.feature {
  padding: var(--space-xl);
  border-radius: var(--radius-m);
  background: var(--color-bg);
  box-shadow: var(--shadow-card);
}

.feature__icon {
  margin-bottom: var(--space-m);
  color: var(--color-primary);
}

.feature__icon svg {
  width: 28px;
  height: 28px;
}

.feature__title {
  font-size: 1.0625rem;
  font-weight: 600;
  margin-bottom: var(--space-s);
}

.feature__desc {
  font-size: 0.9375rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
}

/* ===== Ring Section ===== */

.ring {
  text-align: center;
  padding: var(--space-3xl) 0;
}

.ring__visual {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  border: 6px solid var(--color-border);
  border-top-color: var(--color-primary);
  border-right-color: var(--color-primary);
  border-bottom-color: var(--color-primary);
  margin: 0 auto var(--space-xl);
  transform: rotate(-45deg);
}

.ring__desc {
  color: var(--color-text-secondary);
  max-width: 480px;
  margin: 0 auto;
  line-height: 1.7;
}

/* ===== Pricing ===== */

.pricing {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-xl);
  max-width: 640px;
  margin: 0 auto;
}

.pricing__card {
  padding: var(--space-xl);
  border-radius: var(--radius-m);
  border: 1px solid var(--color-border);
}

.pricing__card--pro {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 1px var(--color-primary);
}

.pricing__label {
  font-size: 0.8125rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-s);
}

.pricing__card--pro .pricing__label {
  color: var(--color-primary);
}

.pricing__price {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: var(--space-l);
}

.pricing__features {
  list-style: none;
  font-size: 0.9375rem;
  color: var(--color-text-secondary);
}

.pricing__features li {
  padding: var(--space-xs) 0;
}

.pricing__features li::before {
  content: "✓ ";
  color: var(--color-success);
  font-weight: 600;
}

/* ===== CTA Banner ===== */

.cta-banner {
  text-align: center;
  padding: var(--space-3xl) 0;
  background: var(--color-bg-dark);
  color: var(--color-text-inverse);
}

.cta-banner__title {
  font-size: 1.75rem;
  font-weight: 700;
  margin-bottom: var(--space-m);
}

.cta-banner__desc {
  opacity: 0.8;
  margin-bottom: var(--space-xl);
}

.cta-banner img {
  height: 48px;
  width: auto;
  margin: 0 auto;
}

/* ===== Footer ===== */

.footer {
  padding: var(--space-2xl) 0;
  border-top: 1px solid var(--color-border);
  text-align: center;
}

.footer__links {
  display: flex;
  justify-content: center;
  gap: var(--space-xl);
  list-style: none;
  margin-bottom: var(--space-l);
}

.footer__links a {
  color: var(--color-text-secondary);
  font-size: 0.875rem;
}

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

.footer__copy {
  font-size: 0.8125rem;
  color: var(--color-text-secondary);
}

/* ===== Legal Pages ===== */

.legal {
  padding: var(--space-3xl) 0;
}

.legal h1 {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: var(--space-s);
}

.legal__updated {
  color: var(--color-text-secondary);
  font-size: 0.875rem;
  margin-bottom: var(--space-2xl);
}

.legal h2 {
  font-size: 1.375rem;
  font-weight: 600;
  margin-top: var(--space-2xl);
  margin-bottom: var(--space-l);
  padding-top: var(--space-l);
  border-top: 1px solid var(--color-border);
}

.legal h3 {
  font-size: 1.125rem;
  font-weight: 600;
  margin-top: var(--space-xl);
  margin-bottom: var(--space-m);
}

.legal p {
  margin-bottom: var(--space-l);
  line-height: 1.7;
}

.legal ul,
.legal ol {
  margin-bottom: var(--space-l);
  padding-left: var(--space-xl);
}

.legal li {
  margin-bottom: var(--space-s);
  line-height: 1.7;
}

.legal strong {
  font-weight: 600;
}

/* ===== Support Page ===== */

.support-hero {
  text-align: center;
  padding: var(--space-3xl) 0 var(--space-2xl);
}

.support-hero h1 {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: var(--space-m);
}

.support-hero p {
  color: var(--color-text-secondary);
  max-width: 480px;
  margin: 0 auto;
}

.faq {
  padding: 0 0 var(--space-3xl);
}

.faq details {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-m);
  margin-bottom: var(--space-m);
  overflow: hidden;
}

.faq summary {
  padding: var(--space-l) var(--space-xl);
  font-weight: 600;
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.faq summary::-webkit-details-marker {
  display: none;
}

.faq summary::after {
  content: "+";
  font-size: 1.25rem;
  color: var(--color-text-secondary);
  transition: transform 0.2s;
}

.faq details[open] summary::after {
  content: "−";
}

.faq details[open] summary {
  border-bottom: 1px solid var(--color-border);
}

.faq__answer {
  padding: var(--space-l) var(--space-xl);
  color: var(--color-text-secondary);
  line-height: 1.7;
}

.contact {
  text-align: center;
  padding: var(--space-2xl);
  background: var(--color-bg-secondary);
  border-radius: var(--radius-l);
  margin-bottom: var(--space-3xl);
}

.contact h2 {
  font-size: 1.375rem;
  font-weight: 600;
  margin-bottom: var(--space-m);
}

.contact p {
  color: var(--color-text-secondary);
  margin-bottom: var(--space-l);
}

.contact__email {
  font-size: 1.125rem;
  font-weight: 600;
}

/* ===== 404 ===== */

.not-found {
  text-align: center;
  padding: calc(var(--space-3xl) * 2) 0;
}

.not-found h1 {
  font-size: 4rem;
  font-weight: 800;
  color: var(--color-primary);
  margin-bottom: var(--space-m);
}

.not-found p {
  color: var(--color-text-secondary);
  margin-bottom: var(--space-xl);
}

.not-found a {
  font-weight: 600;
}

/* ===== Responsive ===== */

@media (max-width: 768px) {
  .hero__tagline {
    font-size: 1.75rem;
  }

  .hero__subtitle {
    font-size: 1rem;
  }

  .steps {
    grid-template-columns: 1fr;
    gap: var(--space-xl);
  }

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

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

  .header__nav {
    display: none;
  }

  .header__menu-btn {
    display: block;
  }

  .header__nav--open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    padding: var(--space-l) var(--space-xl);
    gap: var(--space-l);
  }

  .section__title {
    font-size: 1.5rem;
  }

  .legal h1 {
    font-size: 1.5rem;
  }

  .legal h2 {
    font-size: 1.25rem;
  }
}