/* ──────────────────────────────────────────────────────────────
 * Smartcrew — sophisticated, restrained, type-driven.
 * Mobile-first. Logical properties for free RTL flip.
 * ────────────────────────────────────────────────────────────── */

/* ──── Design tokens ─────────────────────────────────────────── */
/* DARK is the default theme. LIGHT overrides via [data-theme="light"]. */
:root, :root[data-theme="dark"] {
  --bg:        #0e0e0c;
  --bg-alt:    #131310;
  --fg:        #f4efe6;
  --fg-muted:  #8c8579;
  --fg-dim:    #59544b;
  --accent:    #d4a574;
  --hairline:  rgba(244, 239, 230, 0.08);
  --hairline-strong: rgba(244, 239, 230, 0.16);
  --hero-glow: radial-gradient(1200px 600px at 50% -10%, rgba(212, 165, 116, 0.08), transparent 60%);
  --cta-bg:    #f4efe6;
  --cta-bg-hover: #fffaf0;
  --cta-fg:    #0e0e0c;
  --cta-glow:  0 12px 30px -12px rgba(212, 165, 116, 0.35);
}

:root[data-theme="light"] {
  --bg:        #f7f3ec;
  --bg-alt:    #efe9de;
  --fg:        #1a1814;
  --fg-muted:  #6b6457;
  --fg-dim:    #a8a195;
  --accent:    #a06d3a;
  --hairline:  rgba(26, 24, 20, 0.08);
  --hairline-strong: rgba(26, 24, 20, 0.18);
  --hero-glow: radial-gradient(1200px 600px at 50% -10%, rgba(160, 109, 58, 0.08), transparent 60%);
  --cta-bg:    #1a1814;
  --cta-bg-hover: #0e0c08;
  --cta-fg:    #f7f3ec;
  --cta-glow:  0 12px 30px -12px rgba(26, 24, 20, 0.35);
}

:root {
  /* Type families */
  --font-display: 'Fraunces', ui-serif, Georgia, 'Times New Roman', serif;
  --font-ui:      'Inter', ui-sans-serif, system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  --font-ar:      'IBM Plex Sans Arabic', ui-sans-serif, system-ui, sans-serif;

  /* Fluid type scale */
  --fs-eyebrow:  0.75rem;
  --fs-micro:    0.875rem;
  --fs-body:     1.0625rem;
  --fs-lede:     clamp(1.125rem, 0.95rem + 0.7vw, 1.375rem);
  --fs-h3:       clamp(1.25rem, 1.05rem + 0.9vw, 1.5rem);
  --fs-h2:       clamp(2rem, 1.3rem + 3vw, 3.75rem);
  --fs-h1:       clamp(2.75rem, 1.5rem + 6vw, 6.5rem);

  /* Spacing rhythm (8pt base) */
  --s-1: 0.5rem;
  --s-2: 1rem;
  --s-3: 1.5rem;
  --s-4: 2rem;
  --s-5: 3rem;
  --s-6: 4.5rem;
  --s-7: 6.5rem;
  --s-8: 9rem;

  --radius: 2px;
  --max-w: 72rem;
  --prose-w: 38rem;

  --ease: cubic-bezier(0.2, 0.6, 0.2, 1);
}

/* ──── Reset ─────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }

html {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-ui);
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  scroll-behavior: smooth;
}

body {
  min-height: 100svh;
  background:
    var(--hero-glow),
    var(--bg);
  overflow-x: hidden;
  transition: background-color 240ms var(--ease), color 240ms var(--ease);
}
@media (prefers-reduced-motion: reduce) {
  body { transition: none; }
}

img, svg { display: block; max-width: 100%; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }
a { color: inherit; text-decoration: none; }

/* ──── Arabic typography swap ────────────────────────────────── */
html[lang="ar"],
html[lang="ar"] body {
  font-family: var(--font-ar);
  line-height: 1.75;
}

html[lang="ar"] .display,
html[lang="ar"] .display--m,
html[lang="ar"] .card__title,
html[lang="ar"] .step__title {
  font-family: var(--font-ar);
  font-weight: 600;
  letter-spacing: 0;
}

/* ──── Visually-hidden (screen reader only) ──────────────────── */
.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;
}

/* ──── No-JS notice ──────────────────────────────────────────── */
.noscript-note {
  max-width: var(--max-w);
  margin-inline: auto;
  padding: var(--s-2) clamp(1.25rem, 4vw, 2.5rem);
  border-block-end: 1px solid var(--hairline);
  color: var(--fg-muted);
  font-size: var(--fs-micro);
  text-align: center;
}

/* ──── Skip link ─────────────────────────────────────────────── */
.skip-link {
  position: absolute;
  inset-inline-start: var(--s-2);
  inset-block-start: var(--s-2);
  padding: var(--s-1) var(--s-2);
  background: var(--fg);
  color: var(--bg);
  border-radius: var(--radius);
  font-size: var(--fs-micro);
  transform: translateY(-200%);
  transition: transform 180ms var(--ease);
  z-index: 100;
}
.skip-link:focus { transform: translateY(0); }

/* ──── Layout shell ──────────────────────────────────────────── */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--s-3);
  max-width: var(--max-w);
  margin-inline: auto;
  padding-block: var(--s-4) var(--s-3);
  padding-inline-start: max(clamp(1.25rem, 4vw, 2.5rem), env(safe-area-inset-left));
  padding-inline-end:   max(clamp(1.25rem, 4vw, 2.5rem), env(safe-area-inset-right));
}

.wordmark {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 1.375rem;
  letter-spacing: -0.01em;
  color: var(--fg);
}
html[lang="ar"] .wordmark { font-family: var(--font-ar); font-weight: 600; }

/* Topbar controls cluster */
.topbar__controls {
  display: inline-flex;
  align-items: center;
  gap: 0.85rem;
}

/* Theme toggle button */
.theme-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.1rem;
  height: 2.1rem;
  border-radius: 999px;
  color: var(--fg-muted);
  transition: color 160ms var(--ease), background 160ms var(--ease), transform 160ms var(--ease);
  position: relative;
}
.theme-btn:hover { color: var(--fg); background: var(--hairline); }
.theme-btn:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

.theme-icon { display: block; transition: opacity 200ms var(--ease), transform 200ms var(--ease); }
/* Show sun in dark (offer to go light); moon in light (offer to go dark). */
:root[data-theme="dark"]  .theme-icon--moon { display: none; }
:root[data-theme="light"] .theme-icon--sun  { display: none; }

/* Language toggle */
.lang-toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-family: var(--font-ui);
  font-size: 0.75rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--fg-muted);
}
.lang-btn {
  padding: 0.35rem 0.1rem;
  letter-spacing: 0.16em;
  color: var(--fg-muted);
  transition: color 160ms var(--ease);
  position: relative;
}
.lang-btn:hover { color: var(--fg); }
.lang-btn.is-active { color: var(--fg); }
.lang-btn.is-active::after {
  content: "";
  position: absolute;
  inset-inline: 0;
  inset-block-end: -0.25rem;
  height: 1px;
  background: var(--accent);
}
.lang-sep { color: var(--fg-dim); }

main { display: block; }

/* ──── Shared section frame ──────────────────────────────────── */
.hero, .section, .closing {
  max-width: var(--max-w);
  margin-inline: auto;
  padding-inline: clamp(1.25rem, 4vw, 2.5rem);
}

.hero {
  padding-block: clamp(3rem, 8vw, 7rem) clamp(4rem, 10vw, 8rem);
  max-width: 64rem;
}

.section {
  padding-block: clamp(4rem, 9vw, 8rem);
  border-block-start: 1px solid var(--hairline);
}

.section--alt {
  background: linear-gradient(180deg, transparent, var(--bg-alt) 30%, var(--bg-alt) 70%, transparent);
}

.closing {
  padding-block: clamp(5rem, 12vw, 10rem);
  text-align: center;
  border-block-start: 1px solid var(--hairline);
}

/* ──── Typography roles ──────────────────────────────────────── */
.eyebrow {
  font-family: var(--font-ui);
  font-size: var(--fs-eyebrow);
  font-weight: 500;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--accent);
  margin: 0 0 var(--s-3);
}
html[lang="ar"] .eyebrow {
  font-family: var(--font-ar);
  letter-spacing: 0.04em;
  text-transform: none;
  font-weight: 600;
}

.display {
  font-family: var(--font-display);
  font-size: var(--fs-h1);
  font-weight: 500;
  line-height: 1.02;
  letter-spacing: -0.025em;
  margin: 0 0 var(--s-4);
  font-variation-settings: "opsz" 144;
  text-wrap: balance;
  max-width: 22ch;
}
.closing .display { margin-inline: auto; }

.display--m {
  font-size: var(--fs-h2);
  line-height: 1.05;
  letter-spacing: -0.02em;
  max-width: 24ch;
  margin-bottom: var(--s-5);
}

html[lang="ar"] .display { line-height: 1.2; max-width: 26ch; }
html[lang="ar"] .display--m { line-height: 1.25; max-width: 28ch; }

.lede {
  font-family: var(--font-ui);
  font-size: var(--fs-lede);
  font-weight: 400;
  line-height: 1.55;
  color: var(--fg);
  max-width: var(--prose-w);
  margin: 0 0 var(--s-5);
  text-wrap: pretty;
}
html[lang="ar"] .lede { font-family: var(--font-ar); line-height: 1.8; }
.closing .lede { margin-inline: auto; color: var(--fg-muted); }

.micro {
  font-size: var(--fs-micro);
  color: var(--fg-muted);
  margin: var(--s-4) 0 0;
  max-width: 36ch;
}
html[lang="ar"] .micro { font-family: var(--font-ar); }
.closing .micro { margin-inline: auto; }

/* ──── CTA ───────────────────────────────────────────────────── */
.cta {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  padding: 1.05rem 1.6rem;
  font-family: var(--font-ui);
  font-size: 1rem;
  font-weight: 500;
  letter-spacing: 0.01em;
  border-radius: var(--radius);
  background: var(--cta-bg);
  color: var(--cta-fg);
  transition: transform 160ms var(--ease), background 160ms var(--ease), box-shadow 220ms var(--ease);
  will-change: transform;
  box-shadow: 0 0 0 0 rgba(212, 165, 116, 0);
}
html[lang="ar"] .cta { font-family: var(--font-ar); font-weight: 600; }

.cta__arrow {
  display: inline-block;
  transition: transform 200ms var(--ease);
}
.cta:hover {
  transform: translateY(-2px);
  background: var(--cta-bg-hover);
  box-shadow: var(--cta-glow);
}
.cta:hover .cta__arrow { transform: translateX(4px); }
html[dir="rtl"] .cta__arrow { transform: scaleX(-1); }
html[dir="rtl"] .cta:hover .cta__arrow { transform: scaleX(-1) translateX(4px); }

.cta:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

/* ──── Grids ─────────────────────────────────────────────────── */
.grid {
  display: grid;
  gap: var(--s-3);
}
.grid--3 {
  grid-template-columns: 1fr;
}
@media (min-width: 760px) {
  .grid--3 { grid-template-columns: repeat(3, 1fr); gap: var(--s-4); }
}

/* ──── Cards (What we automate) ──────────────────────────────── */
.card {
  padding: var(--s-4) var(--s-3);
  border: 1px solid var(--hairline);
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(244,239,230,0.012), transparent);
  transition: border-color 200ms var(--ease), transform 200ms var(--ease);
}
.card:hover {
  border-color: var(--hairline-strong);
  transform: translateY(-2px);
}
.card__title {
  font-family: var(--font-display);
  font-size: var(--fs-h3);
  font-weight: 500;
  letter-spacing: -0.01em;
  margin: 0 0 var(--s-2);
  color: var(--fg);
}
.card__body {
  font-size: var(--fs-body);
  line-height: 1.6;
  color: var(--fg-muted);
  margin: 0;
  text-wrap: pretty;
}
html[lang="ar"] .card__body { line-height: 1.85; }

/* ──── Steps (How it works) ──────────────────────────────────── */
.steps {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: var(--s-4);
}
@media (min-width: 760px) {
  .steps { grid-template-columns: repeat(3, 1fr); gap: var(--s-5); }
}
.step {
  position: relative;
  padding-block-start: var(--s-3);
  border-block-start: 1px solid var(--hairline-strong);
}
.step__num {
  display: block;
  font-family: var(--font-display);
  font-weight: 400;
  font-size: 1rem;
  letter-spacing: 0.04em;
  color: var(--accent);
  margin-bottom: var(--s-2);
}
.step__title {
  font-family: var(--font-display);
  font-size: var(--fs-h3);
  font-weight: 500;
  margin: 0 0 var(--s-2);
  color: var(--fg);
}
.step__body {
  font-size: var(--fs-body);
  line-height: 1.6;
  color: var(--fg-muted);
  margin: 0;
  max-width: 34ch;
  text-wrap: pretty;
}
html[lang="ar"] .step__body { line-height: 1.85; max-width: 38ch; }

/* ──── Footer ────────────────────────────────────────────────── */
.footer {
  max-width: var(--max-w);
  margin-inline: auto;
  padding-block: var(--s-4) calc(var(--s-5) + env(safe-area-inset-bottom));
  padding-inline-start: max(clamp(1.25rem, 4vw, 2.5rem), env(safe-area-inset-left));
  padding-inline-end:   max(clamp(1.25rem, 4vw, 2.5rem), env(safe-area-inset-right));
  border-block-start: 1px solid var(--hairline);
  color: var(--fg-dim);
  font-size: var(--fs-micro);
}
.footer p {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  margin: 0;
}
.footer__mark {
  font-family: var(--font-display);
  font-weight: 500;
  color: var(--fg-muted);
  letter-spacing: -0.01em;
}
.footer__sep { color: var(--fg-dim); }
html[lang="ar"] .footer__mark { font-family: var(--font-ar); font-weight: 600; }

/* ──── Reveal animation (subtle, opt-out via reduced motion) ─── */
.reveal {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 700ms var(--ease), transform 700ms var(--ease);
}
.reveal.is-in {
  opacity: 1;
  transform: translateY(0);
}
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; }
  .cta { transition: none; }
}

/* ──── Trusted-by strip ──────────────────────────────────────── */
.trusted {
  max-width: var(--max-w);
  margin-inline: auto;
  padding-block: clamp(3rem, 7vw, 5.5rem);
  padding-inline: clamp(1.25rem, 4vw, 2.5rem);
  text-align: center;
  border-block-start: 1px solid var(--hairline);
}

.trusted__eyebrow {
  font-family: var(--font-ui);
  font-size: var(--fs-eyebrow);
  font-weight: 500;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--fg-muted);
  margin: 0 0 var(--s-4);
}
html[lang="ar"] .trusted__eyebrow {
  font-family: var(--font-ar);
  letter-spacing: 0.04em;
  text-transform: none;
  font-weight: 600;
}

.trusted__row {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: clamp(0.75rem, 2.5vw, 2rem);
}

.trusted__tile {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  padding: 0.5rem 1rem;
  border-radius: var(--radius);
  opacity: 0.65;
  transition: opacity 220ms var(--ease), transform 220ms var(--ease);
}
.trusted__tile:hover {
  opacity: 1;
  transform: translateY(-2px);
}

.trusted__logo {
  display: block;
  height: 40px;
  width: auto;
  max-width: 160px;
  object-fit: contain;
}
@media (min-width: 760px) {
  .trusted__logo { height: 56px; max-width: 220px; }
  .trusted__tile { padding: 0.75rem 1.25rem; }
}

/* ──── Mobile refinements (≤ 600px) ──────────────────────────── */
@media (max-width: 600px) {
  /* Tighten the h1 floor so long headlines don't overflow narrow screens */
  :root {
    --fs-h1: clamp(2.125rem, 1.25rem + 5vw, 3rem);
    --fs-lede: clamp(1rem, 0.92rem + 0.6vw, 1.125rem);
  }

  /* Reduce vertical breathing room on phones */
  .hero {
    padding-block: clamp(1.75rem, 6vw, 3rem) clamp(2.25rem, 8vw, 4rem);
  }

  /* Topbar: keep on one line, tighten spacing */
  .topbar {
    padding-block: 1.25rem 1rem;
    gap: 0.75rem;
  }
  .wordmark { font-size: 1.125rem; }
  .topbar__controls { gap: 0.65rem; }
  .theme-btn { width: 1.85rem; height: 1.85rem; }

  /* Display heading: allow tighter wrap, less negative tracking on small */
  .display {
    letter-spacing: -0.018em;
    max-width: 18ch;
  }

  /* CTA: full-width feels confident on phones */
  .cta {
    width: 100%;
    justify-content: center;
    padding: 1rem 1.4rem;
  }

  /* Trusted strip: stack logos in a tighter row */
  .trusted {
    padding-block: clamp(2rem, 7vw, 3.5rem);
  }
  .trusted__row { gap: 0.5rem; }
  .trusted__tile { padding: 0.4rem 0.75rem; }
  .trusted__logo { height: 32px; max-width: 110px; }

  /* Footer: pull in */
  .footer { padding-block: 1.5rem calc(2rem + env(safe-area-inset-bottom)); }
}

/* Very small viewports (≤ 360px) — last-resort safety */
@media (max-width: 360px) {
  :root { --fs-h1: clamp(1.875rem, 1rem + 5vw, 2.5rem); }
  .display { max-width: 16ch; }
  .trusted__row { flex-direction: column; gap: 0.5rem; }
}

/* ──── Selection ─────────────────────────────────────────────── */
::selection { background: var(--accent); color: var(--bg); }