/* ===========================================================
   Landing / Hub (landing.html)
   Reuses core tokens: --bg #060608, --accent #C7FF3D, --warn amber, etc.
   =========================================================== */
.hub {
  display: flex; flex-direction: column;
  min-height: 100vh; min-height: 100dvh;
  padding:
    max(18px, env(safe-area-inset-top))
    max(20px, env(safe-area-inset-right))
    max(22px, env(safe-area-inset-bottom))
    max(20px, env(safe-area-inset-left));
}

/* Shared lime CTA */
.btn-lime {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  font-family: var(--font-display); font-weight: 700; font-size: .95rem;
  color: #0a0a0a; background: var(--accent);
  border: 1px solid transparent; border-radius: 999px;
  padding: 11px 20px; box-shadow: var(--shadow-accent);
  transition: background .15s, transform .08s ease, box-shadow .2s;
}
.btn-lime:hover { background: var(--accent-deep); }
.btn-lime:active { transform: translateY(1px); }
.btn-xl { padding: 14px 26px; font-size: 1.05rem; }

/* ---- Top nav ---- */
.hub-bar {
  display: flex; align-items: center; justify-content: space-between;
  gap: 12px; width: 100%; max-width: var(--container); margin: 0 auto;
}
.hub-nav { display: flex; align-items: center; gap: 10px; }
.hub-signin {
  display: inline-flex; align-items: center;
  font-family: var(--font-display); font-weight: 600; font-size: .9rem;
  color: var(--text-dim);
  border: 1px solid var(--line); border-radius: 999px;
  padding: 9px 16px;
  transition: color .15s, border-color .15s, background .15s;
}
.hub-signin:hover { color: var(--text); border-color: var(--line-strong); background: var(--bg-elev-2); }
.hub-signup { padding: 9px 16px; font-size: .9rem; }

/* ---- Main ---- */
.hub-main {
  flex: 1;
  width: 100%; max-width: var(--container); margin: 0 auto;
  padding-top: 64px;
}

/* ---- Hero ---- */
.hero {
  display: grid; grid-template-columns: 1.05fr 1fr; gap: clamp(28px, 5vw, 64px);
  align-items: center;
}
.hero-left { min-width: 0; }
.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--font-display); font-weight: 600; font-size: .82rem;
  color: var(--accent-text);
  background: var(--accent-soft); border: 1px solid rgba(199,255,61,.3);
  border-radius: 999px; padding: 6px 13px;
}
.eyebrow-dot {
  width: 7px; height: 7px; border-radius: 50%; background: var(--accent);
  box-shadow: 0 0 0 0 rgba(199,255,61,.6); animation: eyebrowPulse 2.2s ease-out infinite;
}
@keyframes eyebrowPulse {
  0% { box-shadow: 0 0 0 0 rgba(199,255,61,.5); }
  70% { box-shadow: 0 0 0 8px rgba(199,255,61,0); }
  100% { box-shadow: 0 0 0 0 rgba(199,255,61,0); }
}
.hero-h1 {
  font-family: var(--font-display); font-weight: 700; line-height: 1.06;
  letter-spacing: -.02em; font-size: clamp(2rem, 4.8vw, 3.4rem);
  margin: 16px 0 0; max-width: 15ch;
}
.hero-h1 .accent { color: var(--accent-text); }
.hero-sub {
  color: var(--text-dim); font-size: clamp(1rem, 1.6vw, 1.15rem);
  line-height: 1.55; margin-top: 16px; max-width: 46ch;
}
.hero-cta { display: flex; align-items: center; gap: 16px; flex-wrap: wrap; margin-top: 26px; }
.hero-micro { color: var(--text-muted); font-size: .85rem; }

/* Proof bar */
.proof-bar {
  display: flex; gap: clamp(18px, 4vw, 40px); flex-wrap: wrap;
  border-top: 1px solid var(--line); margin-top: 28px; padding-top: 20px;
}
.proof-item { display: flex; flex-direction: column; gap: 2px; }
.proof-n { font-family: var(--font-display); font-weight: 800; font-size: 1.5rem; color: var(--text); }
.proof-n.proof-check { color: var(--accent-text); }
.proof-l { color: var(--text-muted); font-size: .82rem; max-width: 18ch; }

/* ---- Sample MCQ ---- */
.hero-right { min-width: 0; }
.sample-mcq {
  position: relative;
  background:
    linear-gradient(135deg, rgba(199,255,61,.10), transparent 42%),
    var(--bg-elev-1);
  border: 1px solid var(--line); border-radius: var(--r-xl);
  padding: 22px; box-shadow: var(--shadow-1);
  overflow: hidden;
}
.sample-mcq::before {
  content: ""; position: absolute; inset: 0; border-radius: inherit; padding: 1px;
  background: linear-gradient(135deg, rgba(199,255,61,.55), transparent 45%);
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor; mask-composite: exclude; pointer-events: none;
}
.smcq-head { display: flex; align-items: center; justify-content: space-between; gap: 10px; margin-bottom: 14px; }
.smcq-tag {
  font-family: var(--font-mono); font-size: .74rem; font-weight: 700;
  color: var(--text-dim); background: var(--bg-elev-2);
  border: 1px solid var(--line); border-radius: 999px; padding: 4px 10px;
}
.smcq-try {
  display: inline-flex; align-items: center; gap: 6px;
  font-family: var(--font-display); font-weight: 700; font-size: .68rem;
  letter-spacing: .1em; color: var(--accent-text);
}
.smcq-try .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--accent); animation: eyebrowPulse 2.2s ease-out infinite; }
.smcq-prompt { font-family: var(--font-display); font-weight: 600; font-size: 1.08rem; line-height: 1.4; margin-bottom: 14px; }
.smcq-opts { display: flex; flex-direction: column; gap: 9px; }
.smcq-opt {
  display: flex; align-items: center; gap: 11px; text-align: left;
  background: var(--bg-elev-2); color: var(--text);
  border: 1px solid var(--line); border-radius: var(--r-md);
  padding: 12px 14px; width: 100%;
  transition: background .14s, border-color .14s, transform .08s ease;
}
.smcq-opt:not(:disabled):hover { background: var(--bg-elev-3); border-color: var(--line-strong); }
.smcq-opt:not(:disabled):active { transform: translateY(1px); }
.smcq-key {
  display: inline-flex; align-items: center; justify-content: center;
  width: 26px; height: 26px; flex: 0 0 26px; border-radius: 8px;
  font-family: var(--font-mono); font-weight: 700; font-size: .82rem;
  background: var(--bg-elev-3); border: 1px solid var(--line); color: var(--text-dim);
}
.smcq-opt-txt { font-size: .92rem; line-height: 1.35; }
.smcq-opt.correct { border-color: var(--accent); background: var(--accent-soft); }
.smcq-opt.correct .smcq-key { background: var(--accent); color: #0a0a0a; border-color: transparent; }
.smcq-opt.wrong { border-color: rgba(255,77,109,.5); background: rgba(255,77,109,.1); }
.smcq-opt.wrong .smcq-key { background: var(--danger); color: #fff; border-color: transparent; }
.smcq-opt:disabled { cursor: default; }

.smcq-reveal { margin-top: 14px; opacity: 0; transform: translateY(6px); transition: opacity .35s ease, transform .35s ease; }
.smcq-reveal.show { opacity: 1; transform: translateY(0); }
.smcq-expl {
  border-left: 3px solid var(--accent); background: var(--bg-elev-2);
  border-radius: 0 var(--r-md) var(--r-md) 0; padding: 11px 14px;
  font-size: .9rem; line-height: 1.5; color: var(--text-dim);
}
.smcq-verdict { font-family: var(--font-display); font-weight: 700; }
.smcq-verdict.ok { color: var(--accent-text); }
.smcq-verdict.no { color: var(--danger); }
.smcq-unlock { width: 100%; margin-top: 13px; }

/* ---- What's inside ---- */
.section-label {
  font-family: var(--font-display); font-weight: 700; font-size: .72rem;
  letter-spacing: .16em; color: var(--text-muted);
}
.inside { margin-top: clamp(48px, 8vh, 84px); }
.inside .section-label { margin-bottom: 16px; }

.feature-body { flex: 1; min-width: 200px; display: flex; flex-direction: column; gap: 5px; }
.feature-title { font-family: var(--font-display); font-weight: 700; font-size: 1.3rem; }
.feature-desc { color: var(--text-dim); font-size: .92rem; line-height: 1.45; }

.feature-ico {
  display: inline-flex; align-items: center; justify-content: center;
  width: 56px; height: 56px; flex: 0 0 56px; border-radius: 16px;
  border: 1px solid var(--line);
}
.feature-ico.green { background: var(--accent-soft);  border-color: rgba(199,255,61,.35); color: var(--accent-text); }
.feature-ico.amber { background: rgba(255,181,71,.14); border-color: rgba(255,181,71,.4); color: var(--warn); }

.soon-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-top: 16px; }

.feature-card {
  position: relative; display: flex; align-items: center; gap: 16px;
  background: var(--bg-elev-1); border: 1px solid var(--line);
  border-radius: var(--r-xl); padding: 20px;
  text-decoration: none; color: inherit;
  transition: transform .14s ease, border-color .15s, box-shadow .2s;
}
.feature-card:hover, .feature-card:focus-visible { transform: translateY(-3px); border-color: var(--accent); box-shadow: var(--shadow-accent); }
.feature-card .feature-ico { width: 48px; height: 48px; flex-basis: 48px; }
.feature-card .feature-title { font-size: 1.1rem; }
.feature-card .feature-arrow { margin-left: auto; color: var(--text-muted); font-size: 1.1rem; transition: color .15s, transform .15s; }
.feature-card:hover .feature-arrow { color: var(--accent-text); transform: translateX(2px); }

/* ---- Footer ---- */
.hub-foot {
  display: flex; align-items: center; justify-content: space-between;
  gap: 14px 20px; flex-wrap: wrap;
  width: 100%; max-width: var(--container); margin: clamp(48px, 9vh, 96px) auto 0;
  padding-top: 22px; border-top: 1px solid var(--line);
}
.foot-brand { display: inline-flex; align-items: baseline; gap: 8px; }
.foot-ar { font-family: "IBM Plex Sans Arabic", var(--font-body); font-weight: 700; font-size: 1.05rem; color: var(--text); }
.foot-en { font-family: var(--font-display); font-weight: 800; letter-spacing: -.01em; color: var(--text); }
.foot-links { display: flex; align-items: center; gap: 18px; flex-wrap: wrap; }
.foot-links a { color: var(--text-muted); font-size: .88rem; transition: color .15s; }
.foot-links a:hover { color: var(--text); }
.foot-lang {
  font-family: "IBM Plex Sans Arabic", var(--font-body); font-weight: 600; font-size: .88rem;
  color: var(--text-dim); background: var(--bg-elev-2);
  border: 1px solid var(--line); border-radius: 999px; padding: 5px 12px;
}
.foot-tag { color: var(--text-muted); font-size: .85rem; }

/* ===== Responsive ===== */
@media (max-width: 900px) {
  .hero { grid-template-columns: 1fr; gap: 32px; }
  .hero-h1, .hero-sub { max-width: none; }
  .hub-main { padding-top: 48px; }
}
@media (max-width: 720px) {
  .soon-row { grid-template-columns: 1fr; }
  .hub-foot { flex-direction: column; align-items: flex-start; }
}
@media (max-width: 560px) {
  .hub-signin { padding: 8px 13px; }
  .hub-signup { padding: 8px 13px; }
  .proof-n { font-size: 1.3rem; }
  .hero-cta { gap: 10px; }
  .hero-cta .btn-xl { width: 100%; }
  .hero-micro { width: 100%; }
}
@media (max-width: 440px) {
  /* Keep header on one line: drop the wordmark, logo still anchors the brand */
  .hub-bar .brand-name { display: none; }
  .hub-nav { gap: 8px; }
}
@media (max-width: 380px) {
  .hub-nav { gap: 6px; }
  .hub-signin, .hub-signup { font-size: .82rem; padding: 8px 11px; }
}

@media (prefers-reduced-motion: reduce) {
  .eyebrow-dot, .smcq-try .dot { animation: none; }
  .smcq-reveal { transition: none; }
  .feature-card:hover, .feature-card:focus-visible { transform: none; }
  .feature-card:hover .feature-arrow { transform: none; }
}
@media (hover: none) and (pointer: coarse) {
  .feature-card:hover { transform: none; }
  .smcq-opt { padding: 13px 14px; }
}

/* Hub landing entrance stagger */
@keyframes riseIn {
  from { opacity: 0; transform: translateY(10px); }
  to   { opacity: 1; transform: translateY(0); }
}
.view-anim > * { animation: riseIn .38s cubic-bezier(.2,.8,.2,1) backwards; }
.view-anim > *:nth-child(2) { animation-delay: 60ms; }
.view-anim > *:nth-child(3) { animation-delay: 120ms; }
.view-anim > *:nth-child(4) { animation-delay: 180ms; }
.view-anim > *:nth-child(n+5) { animation-delay: 240ms; }
@media (prefers-reduced-motion: reduce) {
  .view-anim > * { animation: none; }
}

/* Light theme: neon lime borders → readable deep green */
[data-theme="light"] .eyebrow,
[data-theme="light"] .feature-ico.green,
[data-theme="light"] .smcq-opt.correct {
  border-color: rgba(63, 98, 0, 0.3);
}
[data-theme="light"] .feature-ico.amber {
  border-color: rgba(154, 90, 0, 0.4);
  background: rgba(154, 90, 0, 0.12);
}
[data-theme="light"] .smcq-opt.wrong {
  border-color: rgba(192, 24, 58, 0.45);
  background: rgba(192, 24, 58, 0.08);
}
[data-theme="light"] .feature-card:hover,
[data-theme="light"] .feature-card:focus-visible {
  border-color: var(--accent-text);
}
[data-theme="light"] .sample-mcq {
  background:
    linear-gradient(135deg, rgba(63, 98, 0, 0.08), transparent 42%),
    var(--bg-elev-1);
}
[data-theme="light"] .sample-mcq::before {
  background: linear-gradient(135deg, rgba(63, 98, 0, 0.45), transparent 45%);
}
[data-theme="light"] .smcq-expl {
  border-left-color: var(--accent-text);
}