/* ==========================================================================
   JuraUp public website — shared stylesheet
   ==========================================================================
   Single source of truth for the visual language. Mirrors the JuraUp app's
   brand palette + Inter / IBM Plex Sans Arabic typography so the cross-
   surface experience reads as the same brand.

   Layered as:
     1. CSS custom properties (brand tokens)
     2. @font-face declarations (locally-bundled woff2)
     3. Reset + base
     4. Layout primitives
     5. Component styles (header, hero, features, footer, etc.)
     6. Responsive breakpoints
     7. RTL adjustments via logical properties
   ========================================================================== */

/* 1. Brand tokens ---------------------------------------------------------- */

:root {
  /* Brand palette — same hex values as the Flutter app's MaterialColorScheme. */
  --primary:        #0F766E;   /* teal-700 — brand primary */
  --primary-light:  #14B8A6;   /* teal-500 — gradients, accents */
  --mint-surface:   #E6F7F3;   /* section backgrounds, soft fills */
  --surface:        #FFFFFF;   /* cards, page background */
  --surface-alt:    #F8FAFC;   /* secondary surface */
  --ink:            #0F172A;   /* slate-900 — body text */
  --ink-muted:      #64748B;   /* slate-500 — secondary text */
  --ink-faint:      #CBD5E1;   /* slate-300 — borders, dividers */

  /* Typography */
  --font-latin:  'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  --font-arabic: 'IBM Plex Sans Arabic', 'Inter', system-ui, sans-serif;

  /* Spacing scale */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.5rem;
  --space-6: 2rem;
  --space-8: 3rem;
  --space-10: 4rem;
  --space-12: 6rem;

  /* Layout */
  --content-max:  72rem;     /* page max-width — about 1152px */
  --prose-max:    44rem;     /* legal-text max-width — about 704px */
  --radius-md:    8px;
  --radius-lg:    14px;
}

/* 2. @font-face — Inter (Latin) + IBM Plex Sans Arabic ---------------------- */

@font-face {
  font-family: 'Inter';
  font-weight: 400;
  font-style: normal;
  font-display: swap;
  src: url('fonts/Inter-Regular.woff2') format('woff2');
  unicode-range: U+0020-007E, U+00A0-00FF, U+2000-206F, U+2070-209F;
}
@font-face {
  font-family: 'Inter';
  font-weight: 500;
  font-style: normal;
  font-display: swap;
  src: url('fonts/Inter-Medium.woff2') format('woff2');
  unicode-range: U+0020-007E, U+00A0-00FF, U+2000-206F, U+2070-209F;
}
@font-face {
  font-family: 'Inter';
  font-weight: 600;
  font-style: normal;
  font-display: swap;
  src: url('fonts/Inter-SemiBold.woff2') format('woff2');
  unicode-range: U+0020-007E, U+00A0-00FF, U+2000-206F, U+2070-209F;
}
@font-face {
  font-family: 'Inter';
  font-weight: 700;
  font-style: normal;
  font-display: swap;
  src: url('fonts/Inter-Bold.woff2') format('woff2');
  unicode-range: U+0020-007E, U+00A0-00FF, U+2000-206F, U+2070-209F;
}

@font-face {
  font-family: 'IBM Plex Sans Arabic';
  font-weight: 400;
  font-style: normal;
  font-display: swap;
  src: url('fonts/IBMPlexSansArabic-Regular.woff2') format('woff2');
}
@font-face {
  font-family: 'IBM Plex Sans Arabic';
  font-weight: 500;
  font-style: normal;
  font-display: swap;
  src: url('fonts/IBMPlexSansArabic-Medium.woff2') format('woff2');
}
@font-face {
  font-family: 'IBM Plex Sans Arabic';
  font-weight: 600;
  font-style: normal;
  font-display: swap;
  src: url('fonts/IBMPlexSansArabic-SemiBold.woff2') format('woff2');
}
@font-face {
  font-family: 'IBM Plex Sans Arabic';
  font-weight: 700;
  font-style: normal;
  font-display: swap;
  src: url('fonts/IBMPlexSansArabic-Bold.woff2') format('woff2');
}

/* 3. Reset + base ---------------------------------------------------------- */

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

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

body {
  margin: 0;
  font-family: var(--font-latin);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--ink);
  background: var(--surface);
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

/* Arabic locale — switch font stack and RTL writing mode. */
html[lang='ar'] body { font-family: var(--font-arabic); }
html[lang='ar']      { direction: rtl; }

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

a {
  color: var(--primary);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 120ms ease;
}
a:hover, a:focus-visible {
  border-bottom-color: var(--primary);
}

h1, h2, h3, h4 {
  margin: 0 0 var(--space-4);
  line-height: 1.25;
  letter-spacing: -0.01em;
  color: var(--ink);
  font-weight: 700;
}
h1 { font-size: clamp(2rem, 4vw, 3rem); }
h2 { font-size: clamp(1.5rem, 3vw, 2.125rem); }
h3 { font-size: 1.25rem; }
h4 { font-size: 1.0625rem; }

p { margin: 0 0 var(--space-4); }

/* Skip link for keyboard users. */
.skip-link {
  position: absolute;
  inset-inline-start: var(--space-4);
  inset-block-start: var(--space-4);
  background: var(--ink);
  color: var(--surface);
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-md);
  text-decoration: none;
  z-index: 1000;
  transform: translateY(-200%);
  transition: transform 200ms ease;
}
.skip-link:focus-visible {
  transform: translateY(0);
}

/* Visible-only-on-focus sentinel for icon-only links. */
.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}

/* 4. Layout primitives ----------------------------------------------------- */

.container {
  max-width: var(--content-max);
  margin: 0 auto;
  padding-inline: var(--space-5);
}

.prose {
  max-width: var(--prose-max);
  margin: 0 auto;
}
.prose > h2 { margin-block-start: var(--space-8); }
.prose > h3 { margin-block-start: var(--space-6); }
.prose ul, .prose ol { padding-inline-start: var(--space-6); }
.prose li { margin-block-end: var(--space-2); }
.prose code {
  font-family: ui-monospace, 'SFMono-Regular', Menlo, monospace;
  font-size: 0.9em;
  background: var(--surface-alt);
  padding: 0.1em 0.35em;
  border-radius: 4px;
}
.prose pre {
  background: var(--surface-alt);
  border: 1px solid var(--ink-faint);
  border-radius: var(--radius-md);
  padding: var(--space-4);
  overflow-x: auto;
  font-size: 0.875rem;
}
.prose table {
  width: 100%;
  border-collapse: collapse;
  margin-block: var(--space-5);
  font-size: 0.95rem;
}
.prose th, .prose td {
  text-align: start;
  padding: var(--space-2) var(--space-3);
  border-block-end: 1px solid var(--ink-faint);
}
.prose th {
  background: var(--surface-alt);
  font-weight: 600;
}
.prose blockquote {
  border-inline-start: 4px solid var(--primary);
  padding-inline-start: var(--space-4);
  margin-inline: 0;
  color: var(--ink-muted);
  font-style: italic;
}

/* 5. Site header ----------------------------------------------------------- */

.site-header {
  background: var(--surface);
  border-block-end: 1px solid var(--ink-faint);
  position: sticky;
  inset-block-start: 0;
  z-index: 100;
  backdrop-filter: saturate(180%) blur(8px);
  background: rgba(255, 255, 255, 0.92);
}
.site-header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: var(--space-3);
  gap: var(--space-4);
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  color: var(--ink);
  font-weight: 700;
  font-size: 1.125rem;
  border: none;
}
.brand:hover, .brand:focus-visible { border: none; }
.brand-logo {
  width: 32px;
  height: 32px;
}
.site-nav {
  display: flex;
  align-items: center;
  gap: var(--space-5);
  flex-wrap: wrap;
  font-size: 0.9375rem;
}
.site-nav a {
  color: var(--ink-muted);
}
.site-nav a:hover, .site-nav a:focus-visible {
  color: var(--ink);
  border-bottom-color: var(--primary);
}
.lang-switcher {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  font-size: 0.875rem;
  color: var(--ink-muted);
}
.lang-switcher a[aria-current='page'] {
  color: var(--ink);
  font-weight: 600;
}
.lang-switcher .sep { color: var(--ink-faint); }

/* 6. Hero ------------------------------------------------------------------ */

.hero {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
  color: var(--surface);
  padding-block: var(--space-10);
  overflow: hidden;
}
.hero-inner {
  display: grid;
  gap: var(--space-8);
  align-items: center;
}
.hero h1 {
  color: var(--surface);
  font-size: clamp(2.25rem, 5vw, 3.5rem);
  margin-block-end: var(--space-4);
}
.hero p {
  color: rgba(255, 255, 255, 0.9);
  font-size: 1.125rem;
  max-width: 36rem;
}
.hero-cta {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  background: var(--surface);
  color: var(--primary);
  font-weight: 600;
  padding: var(--space-3) var(--space-5);
  border-radius: 999px;
  margin-block-start: var(--space-5);
  border: none;
  font-size: 0.9375rem;
}
.hero-cta:hover, .hero-cta:focus-visible {
  background: var(--mint-surface);
  border: none;
}
.hero-image {
  display: block;
  margin-inline: auto;
  max-width: 280px;
  border-radius: 32px;
  box-shadow: 0 30px 60px -15px rgba(0,0,0,0.35);
}

/* 7. Features grid --------------------------------------------------------- */

.features {
  padding-block: var(--space-10);
  background: var(--mint-surface);
}
.features-grid {
  display: grid;
  gap: var(--space-5);
  grid-template-columns: 1fr;
  margin-block-start: var(--space-6);
}
.feature {
  background: var(--surface);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  border: 1px solid var(--ink-faint);
}
.feature-icon {
  width: 40px;
  height: 40px;
  color: var(--primary);
  margin-block-end: var(--space-3);
}
.feature h3 { margin-block-end: var(--space-2); }
.feature p {
  color: var(--ink-muted);
  font-size: 0.9375rem;
  margin: 0;
}

/* 8. Privacy commitment block --------------------------------------------- */

.privacy-block {
  padding-block: var(--space-10);
}
.privacy-block-inner {
  background: var(--mint-surface);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  text-align: center;
  max-width: 44rem;
  margin-inline: auto;
}

/* 9. Page header (non-landing pages: privacy, terms, support) ------------- */

.page-header {
  padding-block: var(--space-8) var(--space-6);
  border-block-end: 1px solid var(--ink-faint);
}
.page-header h1 { margin: 0 0 var(--space-2); }
.page-header .meta {
  color: var(--ink-muted);
  font-size: 0.9375rem;
}

.page-content {
  padding-block: var(--space-8);
}

/* 10. Support FAQ ---------------------------------------------------------- */

.faq {
  margin-block-start: var(--space-6);
}
.faq-item {
  border-block-end: 1px solid var(--ink-faint);
  padding-block: var(--space-5);
}
.faq-item:last-child { border-block-end: none; }
.faq-q {
  font-weight: 600;
  font-size: 1.0625rem;
  margin-block-end: var(--space-2);
  color: var(--ink);
}
.faq-a {
  color: var(--ink-muted);
  margin: 0;
}

/* 11. Footer --------------------------------------------------------------- */

.site-footer {
  background: var(--ink);
  color: rgba(255, 255, 255, 0.7);
  padding-block: var(--space-8);
  font-size: 0.875rem;
  margin-block-start: var(--space-10);
}
.site-footer a { color: var(--surface); }
.site-footer a:hover, .site-footer a:focus-visible {
  border-bottom-color: var(--surface);
}
.footer-grid {
  display: grid;
  gap: var(--space-5);
  grid-template-columns: 1fr;
}
.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4) var(--space-5);
  list-style: none;
  padding: 0;
  margin: 0;
}
.footer-disclaimer {
  font-size: 0.8125rem;
  color: rgba(255, 255, 255, 0.55);
  margin-block-start: var(--space-5);
  line-height: 1.5;
}

/* 12. Responsive breakpoints ---------------------------------------------- */

@media (min-width: 48em) { /* 768px tablet */
  .hero-inner {
    grid-template-columns: 1.2fr 1fr;
    gap: var(--space-6);
  }
  .hero-image { max-width: 320px; }
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-grid {
    grid-template-columns: 1fr auto;
    align-items: center;
  }
}

@media (min-width: 64em) { /* 1024px desktop */
  .features-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  .hero-image { max-width: 360px; }
}

/* 13. RTL — adjustments for Arabic pages ---------------------------------- */

html[dir='rtl'] .hero-cta svg { transform: scaleX(-1); }
html[dir='rtl'] .feature-icon-container { /* reserved for any future RTL flip */ }

/* 14. Print --------------------------------------------------------------- */

@media print {
  .site-header, .site-footer, .skip-link { display: none; }
  body { background: white; color: black; }
  a { color: inherit; }
  a[href]::after { content: ' (' attr(href) ')'; font-size: 0.85em; color: #555; }
}