/* ============================================================
   Codara | كودارا — site core
   Brand: Digital Orbit (approved 2026-07) · Arabic-first RTL
   Direction: "Precision Orbit" — Swiss-Arabic editorial on deep navy
   ============================================================ */

/* ---------- Fonts (self-hosted) ---------- */
@font-face {
  font-family: "IBM Plex Sans Arabic";
  src: url("../fonts/plex-arabic-arabic-400.woff2") format("woff2");
  font-weight: 400; font-style: normal; font-display: swap;
  unicode-range: U+0600-06FF, U+0750-077F, U+FB50-FDFF, U+FE70-FEFF;
}
@font-face {
  font-family: "IBM Plex Sans Arabic";
  src: url("../fonts/plex-arabic-arabic-600.woff2") format("woff2");
  font-weight: 600; font-style: normal; font-display: swap;
  unicode-range: U+0600-06FF, U+0750-077F, U+FB50-FDFF, U+FE70-FEFF;
}
@font-face {
  font-family: "IBM Plex Sans Arabic";
  src: url("../fonts/plex-arabic-arabic-700.woff2") format("woff2");
  font-weight: 700; font-style: normal; font-display: swap;
  unicode-range: U+0600-06FF, U+0750-077F, U+FB50-FDFF, U+FE70-FEFF;
}
@font-face {
  font-family: "IBM Plex Sans Arabic";
  src: url("../fonts/plex-arabic-latin-400.woff2") format("woff2");
  font-weight: 400; font-style: normal; font-display: swap;
  unicode-range: U+0000-00FF, U+2000-206F;
}
@font-face {
  font-family: "IBM Plex Sans Arabic";
  src: url("../fonts/plex-arabic-latin-600.woff2") format("woff2");
  font-weight: 600; font-style: normal; font-display: swap;
  unicode-range: U+0000-00FF, U+2000-206F;
}
@font-face {
  font-family: "IBM Plex Sans Arabic";
  src: url("../fonts/plex-arabic-latin-700.woff2") format("woff2");
  font-weight: 700; font-style: normal; font-display: swap;
  unicode-range: U+0000-00FF, U+2000-206F;
}
@font-face {
  font-family: "IBM Plex Mono";
  src: url("../fonts/plex-mono-400.woff2") format("woff2");
  font-weight: 400; font-style: normal; font-display: swap;
}
@font-face {
  font-family: "IBM Plex Mono";
  src: url("../fonts/plex-mono-600.woff2") format("woff2");
  font-weight: 600; font-style: normal; font-display: swap;
}

/* ---------- Tokens (Codara DS) ---------- */
:root {
  --navy-950: #060D16;
  --navy-900: #0D1B2A;
  --navy-850: #0A1830;   /* hero deep */
  --navy-800: #14263B;
  --navy-700: #1E3A5A;
  --navy-600: #2C5484;
  --navy-500: #3D6EA8;
  --navy-400: #6B93C4;
  --navy-200: #B8CBE0;
  --navy-100: #E3EAF2;
  --green-700: #15803D;
  --green-600: #16A34A;
  --green-500: #22C55E;
  --green-300: #86EFAC;
  --green-100: #DCFCE7;
  --gold-600: #B8912B;
  --gold-500: #D4AF37;
  --gold-200: #EFE0AC;
  --gold-100: #F8F1D8;
  --gray-50: #F5F7FA;
  --gray-100: #F1F5F9;
  --gray-200: #E2E8F0;
  --gray-300: #CBD5E1;
  --gray-400: #94A3B8;
  --gray-500: #64748B;
  --gray-600: #475569;
  --gray-700: #334155;
  --white: #FFFFFF;

  --surface-page: var(--gray-50);
  --surface-card: var(--white);
  --surface-inverse: var(--navy-900);
  --text-strong: var(--navy-900);
  --text-body: var(--gray-700);
  --text-muted: var(--gray-500);
  --text-inverse: #F2F6FC;
  --border-subtle: #DCE2EC;

  --font-sans: "IBM Plex Sans Arabic", "Segoe UI", system-ui, sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, monospace;

  --fs-display: clamp(2.6rem, 1.4rem + 5.2vw, 5.4rem);
  --fs-h1: clamp(2rem, 1.3rem + 2.6vw, 3.1rem);
  --fs-h2: clamp(1.6rem, 1.2rem + 1.6vw, 2.25rem);
  --fs-h3: clamp(1.25rem, 1.1rem + 0.7vw, 1.6rem);
  --fs-lead: clamp(1.06rem, 1rem + 0.35vw, 1.22rem);
  --fs-body: 1rem;
  --fs-sm: 0.875rem;
  --fs-xs: 0.78rem;

  --lh-tight: 1.12;
  --lh-heading: 1.24;
  --lh-body: 1.7;

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-pill: 999px;

  --shadow-xs: 0 1px 2px rgba(7, 18, 51, 0.06);
  --shadow-sm: 0 2px 6px rgba(7, 18, 51, 0.07);
  --shadow-md: 0 8px 24px rgba(7, 18, 51, 0.08);
  --shadow-lg: 0 20px 48px rgba(7, 18, 51, 0.12);

  --container: 1200px;
  --narrow: 760px;
  --gutter: clamp(1.25rem, 4vw, 2rem);
  --section: clamp(4.5rem, 3rem + 6vw, 8.5rem);

  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
  --dur-fast: 130ms;
  --dur-base: 220ms;
  --dur-slow: 380ms;
}

/* ---------- Base ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: var(--fs-body);
  line-height: var(--lh-body);
  color: var(--text-body);
  background: var(--surface-page);
  text-rendering: optimizeLegibility;
  overflow-x: clip;
}
h1, h2, h3, h4 { color: var(--text-strong); line-height: var(--lh-heading); margin: 0 0 0.6em; font-weight: 700; }
p { margin: 0 0 1em; }
a { color: var(--navy-600); text-decoration: none; }
a:hover { color: var(--navy-500); }
img, svg { max-width: 100%; height: auto; display: block; }
::selection { background: var(--green-100); color: var(--navy-900); }

:focus-visible {
  outline: none;
  box-shadow: 0 0 0 3px rgba(61, 110, 168, 0.45);
  border-radius: var(--radius-sm);
}

.container { max-width: var(--container); margin-inline: auto; padding-inline: var(--gutter); }
.narrow { max-width: var(--narrow); }

/* Latin/numeric runs inside Arabic flow */
.ltr, .num {
  direction: ltr;
  unicode-bidi: isolate;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
}

/* Mono eyebrow — the </> motif */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.6em;
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--green-700);
}
.eyebrow::before { content: "</>"; color: var(--gray-400); font-weight: 400; letter-spacing: 0; }
.on-dark .eyebrow { color: var(--green-300); }
.on-dark .eyebrow::before { color: var(--navy-400); }

/* Section header — Swiss numbering */
.sec-head { display: grid; gap: 0.5rem; margin-bottom: clamp(2rem, 4vw, 3.5rem); }
.sec-head .sec-no {
  font-family: var(--font-mono);
  font-size: var(--fs-sm);
  color: var(--gray-400);
  letter-spacing: 0; /* Arabic-safe: tracking breaks connected script */
}
.sec-head h2 { font-size: var(--fs-h2); margin: 0; max-width: 22ch; }
.sec-head .sec-sub { color: var(--text-muted); font-size: var(--fs-lead); max-width: 52ch; margin: 0; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5em;
  padding: 0.78em 1.6em;
  border-radius: var(--radius-pill);
  border: 1.5px solid transparent;
  font: 600 var(--fs-body) var(--font-sans);
  cursor: pointer;
  transition: background var(--dur-fast) var(--ease), color var(--dur-fast) var(--ease),
              border-color var(--dur-fast) var(--ease), transform var(--dur-fast) var(--ease),
              box-shadow var(--dur-base) var(--ease);
  will-change: transform;
}
.btn:active { transform: scale(0.97); }
.btn-primary { background: var(--navy-700); color: var(--white); }
.btn-primary:hover { background: var(--navy-600); color: var(--white); box-shadow: var(--shadow-md); }
.btn-growth { background: var(--green-500); color: var(--navy-900); }
.btn-growth:hover { background: var(--green-300); color: var(--navy-900); box-shadow: 0 8px 24px rgba(34, 197, 94, 0.25); }
.btn-outline { background: transparent; color: var(--navy-700); border-color: var(--navy-200); }
.btn-outline:hover { border-color: var(--navy-500); color: var(--navy-500); }
.btn-ghost-dark { background: rgba(255,255,255,0.06); color: var(--text-inverse); border-color: rgba(255,255,255,0.18); }
.btn-ghost-dark:hover { background: rgba(255,255,255,0.12); color: var(--white); }
.btn-lg { padding: 0.95em 2.1em; font-size: var(--fs-lead); }
.btn-sm { padding: 0.5em 1.1em; font-size: var(--fs-sm); }

/* ---------- Header / nav ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 60;
  background: rgba(10, 24, 48, 0.82);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.07);
}
.site-header .bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 68px;
}
.brand-lockup { display: inline-flex; align-items: center; gap: 0.7rem; }
.brand-lockup img { width: 38px; height: 38px; }
.brand-lockup .word {
  display: inline-flex; align-items: baseline; gap: 0.5rem;
  font-weight: 700; font-size: 1.15rem; color: var(--white);
}
.brand-lockup .word .en { font-family: var(--font-mono); font-weight: 600; letter-spacing: 0.02em; }
.brand-lockup .word .sep { width: 1px; height: 1.05em; background: rgba(255,255,255,0.28); align-self: center; }

.main-nav { display: flex; align-items: center; gap: 0.25rem; }
.main-nav a {
  padding: 0.45em 0.9em;
  border-radius: var(--radius-pill);
  color: var(--navy-200);
  font-weight: 600;
  font-size: var(--fs-sm);
  transition: color var(--dur-fast) var(--ease), background var(--dur-fast) var(--ease);
}
.main-nav a:hover { color: var(--white); background: rgba(255,255,255,0.07); }
.main-nav a[aria-current="page"] { color: var(--green-300); background: rgba(34, 197, 94, 0.14); }
.nav-cta { margin-inline-start: 0.5rem; }

.nav-toggle {
  display: none;
  background: none; border: 0; cursor: pointer;
  width: 44px; height: 44px; border-radius: var(--radius-sm);
  color: var(--white);
}
.nav-toggle svg { margin: auto; }

@media (max-width: 820px) {
  .nav-toggle { display: grid; place-items: center; }
  .main-nav {
    position: absolute;
    inset-inline: 0;
    top: 100%;
    flex-direction: column;
    align-items: stretch;
    padding: 0.8rem var(--gutter) 1.2rem;
    background: var(--navy-850);
    border-bottom: 1px solid rgba(255,255,255,0.08);
    display: none;
  }
  .main-nav.open { display: flex; }
  .main-nav a { padding: 0.8em 1em; }
  .nav-cta { margin: 0.4rem 0 0; text-align: center; }
}

/* ---------- Orbit atmosphere (decorative line-work) ---------- */
.orbit-field {
  position: absolute;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
}
.orbit-field svg { position: absolute; width: auto; }
@media (prefers-reduced-motion: no-preference) {
  .orbit-spin { animation: orbitSpin 140s linear infinite; transform-origin: center; }
  .orbit-spin.rev { animation-direction: reverse; animation-duration: 190s; }
}
@keyframes orbitSpin { to { transform: rotate(360deg); } }

/* ---------- Reveal on scroll (hidden state only when JS is present;
   :where() keeps specificity below .rv.in so the reveal always wins) ---------- */
:where(html.js) .rv { opacity: 0; transform: translateY(22px); }
.rv.in {
  opacity: 1; transform: none;
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
  transition-delay: calc(var(--i, 0) * 90ms);
}
@media (prefers-reduced-motion: reduce) {
  :where(html.js) .rv { opacity: 1; transform: none; }
  html { scroll-behavior: auto; }
  .orbit-spin { animation: none; }
}

/* ---------- Cards ---------- */
.card {
  position: relative;
  overflow: hidden;
  background: var(--surface-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xs);
  transition: transform var(--dur-base) var(--ease), box-shadow var(--dur-base) var(--ease);
}
.card.lift:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); }
.card .accent { display: block; height: 3px; border-radius: 3px 3px 0 0; }
.accent-green { background: var(--green-500); }
.accent-navy { background: var(--navy-600); }
.accent-gold { background: var(--gold-500); }

/* ---------- Chips ---------- */
.chip {
  display: inline-flex; align-items: center; gap: 0.45em;
  padding: 0.42em 1.05em;
  border-radius: var(--radius-pill);
  border: 1.5px solid var(--border-subtle);
  background: var(--white);
  color: var(--gray-600);
  font: 600 var(--fs-sm) var(--font-sans);
  cursor: pointer;
  transition: all var(--dur-fast) var(--ease);
}
.chip:hover { border-color: var(--navy-400); color: var(--navy-700); }
.chip[aria-pressed="true"] { background: var(--navy-800); border-color: var(--navy-800); color: var(--white); }
.chip .dot { width: 8px; height: 8px; border-radius: 50%; }

/* ---------- Footer ---------- */
.site-footer {
  background: var(--navy-950);
  color: var(--navy-200);
  margin-top: var(--section);
  position: relative;
  overflow: hidden;
}
.site-footer .inner {
  display: grid;
  gap: 2.5rem;
  padding-block: clamp(3rem, 6vw, 5rem) 2rem;
  grid-template-columns: 1.4fr 1fr 1fr;
}
.site-footer h4 { color: var(--white); font-size: var(--fs-body); margin-bottom: 1rem; }
.site-footer a { color: var(--navy-200); display: inline-block; padding-block: 0.22em; font-size: var(--fs-sm); }
.site-footer a:hover { color: var(--green-300); }
.site-footer .brand-line { display: flex; align-items: center; gap: 0.8rem; margin-bottom: 1rem; }
.site-footer .brand-line img { width: 44px; height: 44px; }
.site-footer .tagline { color: var(--navy-400); font-size: var(--fs-sm); max-width: 34ch; }
.site-footer .legal {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding-block: 1.3rem;
  display: flex; flex-wrap: wrap; gap: 0.8rem; justify-content: space-between;
  font-size: var(--fs-xs); color: var(--navy-400);
}
.site-footer .legal .mono { font-family: var(--font-mono); letter-spacing: 0.06em; }
@media (max-width: 820px) {
  .site-footer .inner { grid-template-columns: 1fr; gap: 1.8rem; }
}

/* ---------- Utilities ---------- */
.on-dark { color: var(--text-inverse); }
.on-dark h1, .on-dark h2, .on-dark h3 { color: var(--white); }
.on-dark p { color: var(--navy-200); }
.grid { display: grid; gap: 1.25rem; }
.mt-0 { margin-top: 0; } .mb-0 { margin-bottom: 0; }
.center { text-align: center; }
.visually-hidden {
  position: absolute; width: 1px; height: 1px;
  clip-path: inset(50%); overflow: hidden; white-space: nowrap;
}
.skip-link {
  position: absolute; top: -48px; right: var(--gutter); z-index: 100;
  background: var(--green-500); color: var(--navy-900);
  padding: 0.6em 1.2em; border-radius: 0 0 var(--radius-sm) var(--radius-sm);
  font-weight: 700; transition: top var(--dur-fast) var(--ease);
}
.skip-link:focus { top: 0; }