/* ============================================================
   LUMAD.AI LANDING PAGE - design tokens + base styles.
   Resolved from the Lumad UI Kit design system.
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&family=IBM+Plex+Sans+Arabic:wght@400;500;600;700&family=Newsreader:ital,opsz,wght@0,16..72,400;0,16..72,500;1,16..72,400&family=JetBrains+Mono:wght@400;500;600&display=swap');

:root {
  /* ---- BRAND: Plum (the dark ground) ---- */
  --plum-950: #14111F;
  --plum-900: #1E1B2E;
  --plum-800: #272338;
  --plum-700: #332E48;
  --plum-600: #443D5E;
  --plum-500: #5B5278;

  /* ---- BRAND: Violet (primary action / .ai) ---- */
  --violet-700: #6D28D9;
  --violet-600: #7E22CE;
  --violet-500: #9333EA;
  --violet-400: #A855F7;
  --violet-300: #C084FC;
  --violet-200: #DDD0FB;
  --violet-100: #EDE6FD;

  /* ---- BRAND: Magenta (energy accent) ---- */
  --magenta-900: #88003C;
  --magenta-600: #E11D6A;
  --magenta-400: #F25C97;
  --magenta-200: #FFB7D5;
  --magenta-100: #FFE4F0;

  /* ---- NEUTRALS: Lavender-tinted greys ---- */
  --white: #FFFFFF;
  --lavender-50: #F8F5FF;
  --lavender-100: #F1ECFA;
  --lavender-200: #E5DEF3;
  --lavender-300: #C6BDDA;
  --grey-400: #9A92AE;
  --grey-500: #756C8A;
  --grey-600: #564E6B;
  --ink: #1E1B2E;

  /* ---- SUPPORT (status) ---- */
  --success: #16A34A;
  --success-bg: #DCFCE7;
  --warning: #D97706;
  --warning-bg: #FEF3C7;
  --danger: #E11D6A;
  --danger-bg: #FFE4F0;
  --info: #6237C8;
  --info-bg: #EDE6FD;

  /* ---- GRADIENTS (brand signature) ---- */
  --grad-brand: linear-gradient(120deg, #7E22CE 0%, #A855F7 55%, #E11D6A 100%);
  --grad-violet: linear-gradient(120deg, #6D28D9 0%, #A855F7 100%);
  --grad-plum: linear-gradient(160deg, #1E1B2E 0%, #2A2342 60%, #3A2150 100%);
  --grad-text: linear-gradient(100deg, #A855F7 0%, #E11D6A 100%);

  /* ---- SEMANTIC ALIASES ---- */
  --surface-page: var(--lavender-50);
  --surface-card: var(--white);
  --surface-sunken: var(--lavender-100);
  --surface-dark: var(--plum-900);
  --surface-dark-raised: var(--plum-800);
  --surface-tint: var(--violet-100);

  --text-strong: var(--ink);
  --text-body: #34304A;
  --text-muted: var(--grey-500);
  --text-on-dark: #F4F1FB;
  --text-on-dark-muted: #B3AAC9;
  --text-brand: var(--violet-600);
  --text-on-brand: var(--white);

  --border-subtle: var(--lavender-200);
  --border-default: var(--lavender-300);
  --border-strong: var(--grey-400);
  --border-dark: rgba(255,255,255,0.10);

  --action-primary: var(--violet-600);
  --action-primary-hover: var(--violet-700);
  --action-primary-active: #5B1AA8;
  --action-accent: var(--magenta-600);
  --focus-ring: rgba(126,34,206,0.40);

  /* ---- TYPOGRAPHY ---- */
  --font-sans: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --font-arabic: "IBM Plex Sans Arabic", "Inter", system-ui, sans-serif;
  --font-serif: "Newsreader", Georgia, "Times New Roman", serif;
  --font-mono: "JetBrains Mono", ui-monospace, "SF Mono", Menlo, monospace;

  --fw-regular: 400;
  --fw-medium: 500;
  --fw-semibold: 600;
  --fw-bold: 700;
  --fw-extrabold: 800;

  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-md: 1.125rem;
  --text-lg: 1.375rem;
  --text-xl: 1.75rem;
  --text-2xl: 2.25rem;
  --text-3xl: 3rem;
  --text-4xl: 3.75rem;
  --text-5xl: 4.75rem;

  --leading-tight: 1.08;
  --leading-snug: 1.25;
  --leading-normal: 1.5;
  --leading-relaxed: 1.65;

  --tracking-tight: -0.03em;
  --tracking-snug: -0.015em;
  --tracking-normal: 0;
  --tracking-wide: 0.08em;
  --tracking-wider: 0.16em;

  /* ---- SPACING / RADIUS ---- */
  --space-0: 0;
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.5rem;
  --space-6: 2rem;
  --space-7: 2.5rem;
  --space-8: 3rem;
  --space-9: 4rem;
  --space-10: 5rem;
  --space-12: 7rem;

  --radius-xs: 4px;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-2xl: 32px;
  --radius-pill: 999px;

  --container-narrow: 720px;
  --container: 1080px;
  --container-wide: 1280px;

  /* ---- EFFECTS ---- */
  --shadow-xs: 0 1px 2px rgba(30,27,46,0.06);
  --shadow-sm: 0 2px 6px rgba(30,27,46,0.07);
  --shadow-md: 0 8px 24px -6px rgba(46,28,84,0.14);
  --shadow-lg: 0 20px 48px -12px rgba(46,28,84,0.22);
  --shadow-xl: 0 32px 70px -16px rgba(46,28,84,0.28);
  --shadow-glow: 0 12px 40px -6px rgba(126,34,206,0.45);
  --shadow-glow-magenta: 0 12px 40px -8px rgba(225,29,106,0.40);

  --ring: 0 0 0 4px var(--focus-ring);

  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
  --dur-fast: 120ms;
  --dur: 200ms;
  --dur-slow: 360ms;
}

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

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: var(--text-base);
  line-height: var(--leading-normal);
  color: var(--text-body);
  background: var(--surface-page);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

[dir="rtl"], [lang="ar"] {
  font-family: var(--font-arabic);
  direction: rtl;
}

/* ============================================================
   RTL OVERRIDES (Arabic page)
   The base markup pushes elements with inline `margin-left:auto`,
   left-aligned glows, and LTR-anchored borders. These flip them.
   ============================================================ */
[dir="rtl"] h1, [dir="rtl"] h2, [dir="rtl"] h3, [dir="rtl"] h4 {
  font-family: var(--font-arabic);
  letter-spacing: normal;
}
[dir="rtl"] .hero-title { letter-spacing: normal !important; line-height: 1.18 !important; }
[dir="rtl"] .lumad-wordmark,
[dir="rtl"] .lumad-eyebrow { letter-spacing: normal; }

/* Wordmark stays latin & LTR even inside an RTL line */
[dir="rtl"] .lumad-wordmark { direction: ltr; font-family: var(--font-sans); }

/* Flip every element that was pushed right with margin-left:auto */
[dir="rtl"] .nav-actions { margin-left: 0 !important; margin-right: auto !important; }
[dir="rtl"] .nav-links { margin-left: 0; margin-right: 18px; }
[dir="rtl"] .nav-byline {
  border-left: 0 !important;
  border-right: 1px solid var(--border-dark);
  padding-left: 0 !important;
  padding-right: 13px;
}
[dir="rtl"] .nav-toggle { margin-left: 0; margin-right: auto; }

/* Inline `margin-left:auto` badges/spacers → push to the left edge in RTL.
   `:not([dir="ltr"] *)` keeps explicitly-LTR subtrees (e.g. the English sample
   card in the bilingual showcase) behaving as true LTR. */
[dir="rtl"] [style*="margin-left:auto"]:not([dir="ltr"] *),
[dir="rtl"] [style*="margin-left: auto"]:not([dir="ltr"] *) {
  margin-left: 0 !important;
  margin-right: auto !important;
}
/* Mirror the rare `margin-right:auto` (used inside the AR demo cards) */
[dir="rtl"] .ar-mirror[style*="margin-right:auto"] {
  margin-right: 0 !important;
  margin-left: auto !important;
}

/* Lists & bullets read from the right */
[dir="rtl"] ul { padding: 0; }

/* Numbers, hashtags, char counts stay LTR for correct glyph order */
[dir="rtl"] .ltr-num { direction: ltr; unicode-bidi: embed; display: inline-block; }

/* Mono labels (e.g. "+ AI image") realign - but not inside LTR sample cards */
[dir="rtl"] [style*="font-family:var(--font-mono)"]:not([dir="ltr"] *) { font-family: var(--font-arabic) !important; }

h1, h2, h3, h4 {
  font-family: var(--font-sans);
  color: var(--text-strong);
  font-weight: var(--fw-bold);
  letter-spacing: var(--tracking-snug);
  line-height: var(--leading-tight);
  margin: 0;
}

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

/* ---- Brand wordmark helper ---- */
.lumad-wordmark {
  font-family: var(--font-sans);
  font-weight: var(--fw-extrabold);
  letter-spacing: -0.04em;
  font-size: 1.5rem;
  color: var(--ink);
  line-height: 1;
  display: inline-flex;
  align-items: baseline;
}
.lumad-wordmark .dot-ai { color: var(--violet-600); }
.lumad-wordmark.on-dark { color: #FFFFFF; }
.lumad-wordmark.on-dark .dot-ai { color: var(--violet-400); }

/* ---- Eyebrow / kicker label ---- */
.lumad-eyebrow {
  font-size: var(--text-xs);
  font-weight: var(--fw-semibold);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--text-brand);
}

/* ---- Gradient text accent ---- */
.lumad-gradient-text {
  background: var(--grad-text);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* ---- Button component (resolved from UI kit) ---- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--font-sans);
  font-weight: var(--fw-semibold);
  letter-spacing: -0.01em;
  line-height: 1;
  cursor: pointer;
  text-decoration: none;
  border: 1px solid transparent;
  transition: transform var(--dur) var(--ease-out), filter var(--dur) var(--ease-out), background var(--dur);
}
.btn:active { transform: translateY(1px); }
.btn:hover { filter: brightness(1.06); }
.btn--sm { height: 36px; padding: 0 14px; font-size: var(--text-sm); border-radius: var(--radius-sm); }
.btn--md { height: 44px; padding: 0 20px; font-size: var(--text-base); border-radius: var(--radius-md); }
.btn--lg { height: 54px; padding: 0 28px; font-size: var(--text-md); border-radius: var(--radius-md); }
.btn--primary { background: var(--action-primary); color: var(--text-on-brand); box-shadow: var(--shadow-glow); }
.btn--accent  { background: var(--action-accent); color: #fff; box-shadow: var(--shadow-glow-magenta); }
.btn--secondary { background: var(--surface-card); color: var(--text-strong); border: 1px solid var(--border-default); box-shadow: var(--shadow-xs); }

/* ---- Stat component ---- */
.stat { display: flex; flex-direction: column; gap: 4px; }
.stat__value {
  font-family: var(--font-sans);
  font-size: var(--text-3xl);
  font-weight: var(--fw-extrabold);
  letter-spacing: var(--tracking-tight);
  line-height: 1;
}
.stat__value--gradient {
  background: var(--grad-text);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.stat__label {
  font-family: var(--font-sans);
  font-size: var(--text-sm);
  font-weight: var(--fw-medium);
}
.stat--dark .stat__label { color: var(--text-on-dark-muted); }

/* ---- Hover affordances ---- */
.card-hover { transition: transform var(--dur) var(--ease-out), box-shadow var(--dur) var(--ease-out); }
.card-hover:hover { transform: translateY(-3px); box-shadow: var(--shadow-lg); }
.shadow-hover { transition: box-shadow var(--dur) var(--ease-out); }
.shadow-hover:hover { box-shadow: var(--shadow-lg); }

/* ---- FAQ accordion ---- */
.faq-item { background: var(--surface-card); border: 1px solid var(--border-subtle); border-radius: 16px; box-shadow: var(--shadow-sm); cursor: pointer; overflow: hidden; }
.faq-q { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 20px 26px; }
.faq-q__text { font-size: 17px; font-weight: 600; color: var(--text-strong); }
.faq-q__sign { flex-shrink: 0; width: 26px; height: 26px; border-radius: 50%; background: var(--violet-100); color: var(--violet-600); display: inline-flex; align-items: center; justify-content: center; font-size: 18px; font-weight: 600; line-height: 1; }
.faq-a { padding: 0 26px 22px; color: var(--text-muted); font-size: 15.5px; line-height: 1.62; }
.faq-item:not(.is-open) .faq-a { display: none; }

/* ---- Mobile nav (hamburger + dropdown) - hidden on desktop ---- */
.nav-toggle {
  display: none;
  margin-left: auto;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 42px;
  height: 42px;
  padding: 0 9px;
  border: 1px solid var(--border-dark);
  border-radius: 10px;
  background: rgba(255,255,255,0.06);
  cursor: pointer;
}
.nav-toggle span {
  display: block;
  height: 2px;
  width: 100%;
  border-radius: 2px;
  background: #fff;
  transition: transform var(--dur) var(--ease-out), opacity var(--dur) var(--ease-out);
}
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.mobile-menu {
  display: none;
  flex-direction: column;
  gap: 4px;
  padding: 10px 20px 22px;
  background: rgba(20,17,31,0.97);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border-dark);
}
.mobile-menu a {
  color: var(--text-on-dark);
  font-size: 16px;
  font-weight: 600;
  text-decoration: none;
  padding: 12px 4px;
}
.mobile-menu a.btn { color: #fff; padding: 0; margin-top: 6px; }
.mobile-menu__divider { height: 1px; background: var(--border-dark); margin: 8px 0; }

/* ---- Animations ---- */
@keyframes lumad-pulse { 0%,100% { opacity: 1; } 50% { opacity: 0.35; } }
@keyframes lumad-grow { from { transform: scaleX(0.4); } to { transform: scaleX(1); } }

/* ============================================================
   RESPONSIVE
   ============================================================ */
/* Fluid headings so they never overflow narrow viewports */
.hero-title { font-size: clamp(34px, 8.5vw, 66px) !important; }
.section-title { font-size: clamp(28px, 6vw, 44px); }

@media (max-width: 920px) {
  .hero-grid { grid-template-columns: 1fr !important; }
  .feature-row { grid-template-columns: 1fr !important; }
  .feature-row .feature-media { min-height: 220px !important; }
  .small-features { grid-template-columns: repeat(2, 1fr) !important; }
  .steps-grid { grid-template-columns: repeat(2, 1fr) !important; }
  .platforms-grid { grid-template-columns: repeat(2, 1fr) !important; }
  .bilingual-grid { grid-template-columns: 1fr !important; }
  .testimonials-grid { grid-template-columns: 1fr !important; }

  /* Swap desktop nav for hamburger */
  .nav-links,
  .nav-byline,
  .nav-actions { display: none !important; }
  .nav-toggle { display: flex !important; }
  .mobile-menu:not([hidden]) { display: flex !important; }
}

@media (max-width: 640px) {
  /* Tighten section padding so content isn't cramped against edges */
  .hero-grid { padding: 56px 20px 64px !important; gap: 36px !important; }
  .hero-cta { width: 100%; }
  .hero-cta > a { flex: 1 1 auto; justify-content: center; }

  /* Any fixed max-width text/cards must not exceed the viewport column */
  .hero-grid p,
  .hero-grid > div { max-width: 100% !important; }

  /* Reduce all section horizontal padding on phones */
  section,
  #features > div,
  #how > div,
  #platforms > div,
  #bilingual > div { box-sizing: border-box; }
  section[style*="padding"] { padding-left: 20px !important; padding-right: 20px !important; }

  /* Feature card inner padding is large on desktop - tighten it */
  .feature-row > div { padding: 30px 24px !important; }

  /* CTA card padding */
  #cta > div { padding: 48px 24px !important; }
}

@media (max-width: 560px) {
  .small-features, .steps-grid, .platforms-grid { grid-template-columns: 1fr !important; }
}