/* HAW Labs — Shared Stylesheet */

/* ============================================================
   CSS Custom Properties (Theming)
   ============================================================ */
:root {
  --color-bg: #ffffff;
  --color-bg-alt: #f5f7fa;
  --color-surface: #eef1f6;
  --color-border: #e0e4ea;
  --color-text: #111418;
  --color-text-secondary: #5a6270;
  --color-text-muted: #8a919e;
  --color-primary: #0771e4;
  --color-primary-hover: #0560c4;
  --color-primary-light: #e8f2fd;
  --color-accent: #0ea5e9;
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.07), 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08), 0 2px 6px rgba(0, 0, 0, 0.05);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --max-width: 820px;
  --header-height: 60px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --color-bg: #0f1117;
    --color-bg-alt: #161b22;
    --color-surface: #1e2430;
    --color-border: #2a3140;
    --color-text: #e8eaf0;
    --color-text-secondary: #9aa3b0;
    --color-text-muted: #6b7280;
    --color-primary: #3b92f8;
    --color-primary-hover: #5ca5fa;
    --color-primary-light: #1a2a3e;
    --color-accent: #38bdf8;
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.3), 0 1px 2px rgba(0, 0, 0, 0.2);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4), 0 2px 6px rgba(0, 0, 0, 0.3);
  }
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--color-bg);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

main {
  flex: 1;
}

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

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

a:hover {
  color: var(--color-primary-hover);
  text-decoration: underline;
}

/* ============================================================
   Typography
   ============================================================ */
h1, h2, h3, h4 {
  line-height: 1.25;
  font-weight: 700;
  color: var(--color-text);
  letter-spacing: -0.02em;
}

h1 { font-size: clamp(1.75rem, 4vw, 2.5rem); }
h2 { font-size: clamp(1.4rem, 3vw, 1.9rem); }
h3 { font-size: clamp(1.1rem, 2.5vw, 1.4rem); }
h4 { font-size: 1rem; }

p {
  color: var(--color-text-secondary);
  max-width: 65ch;
}

.lead {
  font-size: 1.125rem;
  line-height: 1.7;
}

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

.section {
  padding: 72px 0;
}

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

/* ============================================================
   Header & Navigation
   ============================================================ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-height);
  background-color: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  background-color: rgba(255, 255, 255, 0.9);
}

@media (prefers-color-scheme: dark) {
  .site-header {
    background-color: rgba(15, 17, 23, 0.9);
  }
}

.site-header .container {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.site-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--color-text);
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: -0.01em;
}

.site-logo:hover {
  color: var(--color-text);
  text-decoration: none;
}

.logo-mark {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-weight: 800;
  font-size: 0.9rem;
  flex-shrink: 0;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 6px;
}

.site-nav a {
  color: var(--color-text-secondary);
  font-size: 0.9rem;
  font-weight: 500;
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  transition: color 0.15s, background-color 0.15s;
  text-decoration: none;
}

.site-nav a:hover {
  color: var(--color-text);
  background-color: var(--color-surface);
  text-decoration: none;
}

.site-nav a.active {
  color: var(--color-primary);
  background-color: var(--color-primary-light);
}

/* ============================================================
   Footer
   ============================================================ */
.site-footer {
  border-top: 1px solid var(--color-border);
  padding: 32px 0;
  margin-top: auto;
}

.footer-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  text-align: center;
}

.footer-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 4px 16px;
}

.footer-nav a {
  color: var(--color-text-muted);
  font-size: 0.85rem;
  transition: color 0.15s;
  text-decoration: none;
}

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

.footer-copy {
  color: var(--color-text-muted);
  font-size: 0.82rem;
}

/* ============================================================
   Hero Section
   ============================================================ */
.hero {
  padding: 88px 0 72px;
  text-align: center;
}

.hero h1 {
  margin-bottom: 20px;
}

.hero h1 em {
  font-style: normal;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero .lead {
  color: var(--color-text-secondary);
  max-width: 55ch;
  margin: 0 auto;
}

/* ============================================================
   App Card / Featured App
   ============================================================ */
.app-card {
  background-color: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 48px;
  box-shadow: var(--shadow-md);
}

.app-card-header {
  margin-bottom: 32px;
}

.app-badge {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-primary);
  background-color: var(--color-primary-light);
  padding: 4px 10px;
  border-radius: 100px;
  margin-bottom: 16px;
}

.app-card-header h2 {
  margin-bottom: 8px;
}

.app-tagline {
  font-size: 1.1rem;
  color: var(--color-text-secondary);
  font-style: italic;
  margin-bottom: 20px;
}

.app-description {
  max-width: 60ch;
  color: var(--color-text-secondary);
  line-height: 1.7;
}

/* Feature Grid */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 16px;
  margin: 32px 0;
}

.feature-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 16px;
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}

.feature-icon {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  background-color: var(--color-primary-light);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 1rem;
}

.feature-text {
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--color-text);
  line-height: 1.4;
  padding-top: 8px;
}

/* App Store Button */
.btn-appstore {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-text-secondary);
  font-size: 0.9rem;
  font-weight: 500;
  cursor: default;
  text-decoration: none;
}

.btn-appstore .badge-soon {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-primary);
  background-color: var(--color-primary-light);
  padding: 2px 8px;
  border-radius: 100px;
}

/* ============================================================
   About Section
   ============================================================ */
.about-section {
  padding: 64px 0;
}

.about-inner {
  max-width: 60ch;
}

.about-inner h2 {
  margin-bottom: 16px;
}

.about-inner p {
  color: var(--color-text-secondary);
  line-height: 1.75;
}

/* ============================================================
   Prose / Legal Pages
   ============================================================ */
.prose-header {
  padding: 56px 0 40px;
  border-bottom: 1px solid var(--color-border);
  margin-bottom: 48px;
}

.prose-header h1 {
  margin-bottom: 8px;
}

.prose-meta {
  font-size: 0.88rem;
  color: var(--color-text-muted);
}

.prose-body {
  padding-bottom: 80px;
}

.prose-body h2 {
  font-size: 1.25rem;
  margin-top: 48px;
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--color-border);
  color: var(--color-text);
}

.prose-body h3 {
  font-size: 1rem;
  margin-top: 24px;
  margin-bottom: 10px;
  color: var(--color-text);
}

.prose-body p {
  margin-bottom: 16px;
  color: var(--color-text-secondary);
  max-width: none;
  line-height: 1.75;
}

.prose-body ul, .prose-body ol {
  margin: 12px 0 20px 20px;
  color: var(--color-text-secondary);
}

.prose-body li {
  margin-bottom: 8px;
  line-height: 1.65;
}

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

.prose-body strong {
  color: var(--color-text);
  font-weight: 600;
}

.callout {
  background-color: var(--color-primary-light);
  border-left: 3px solid var(--color-primary);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  padding: 16px 20px;
  margin: 24px 0;
}

.callout p {
  color: var(--color-primary);
  margin: 0;
  font-weight: 500;
  font-size: 0.93rem;
}

/* ============================================================
   Support Page
   ============================================================ */
.support-contact {
  background-color: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 40px;
  margin-bottom: 64px;
}

.support-contact h2 {
  margin-bottom: 8px;
}

.support-contact p {
  margin-bottom: 24px;
}

.contact-link,
.contact-link:visited {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  background-color: var(--color-primary);
  color: #fff;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
  transition: background-color 0.15s;
}

.contact-link:hover {
  background-color: var(--color-primary-hover);
  color: #fff;
  text-decoration: none;
}

.contact-note {
  margin-top: 12px;
  font-size: 0.85rem;
  color: var(--color-text-muted) !important;
}

/* FAQ */
.faq-list {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.faq-item {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.faq-item + .faq-item {
  margin-top: 8px;
}

.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 24px;
  background: none;
  border: none;
  cursor: pointer;
  text-align: left;
  color: var(--color-text);
  font-size: 0.95rem;
  font-weight: 600;
  font-family: inherit;
  transition: background-color 0.15s;
}

.faq-question:hover {
  background-color: var(--color-surface);
}

.faq-chevron {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  color: var(--color-text-muted);
  transition: transform 0.2s ease;
}

.faq-item.open .faq-chevron {
  transform: rotate(180deg);
}

.faq-answer {
  display: none;
  padding: 0 24px 20px;
  color: var(--color-text-secondary);
  font-size: 0.92rem;
  line-height: 1.7;
}

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

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 640px) {
  .hero {
    padding: 56px 0 48px;
    text-align: left;
  }

  .hero .lead {
    margin: 0;
  }

  .app-card {
    padding: 28px 20px;
  }

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

  .support-contact {
    padding: 28px 20px;
  }

  .site-nav a {
    padding: 6px 8px;
    font-size: 0.85rem;
  }
}

@media (max-width: 440px) {
  .site-nav {
    gap: 2px;
  }

  .site-nav a {
    font-size: 0.8rem;
    padding: 5px 6px;
  }
}