/* ==========================================================================
   PLAY SCHOOL — Public landing page (S33)
   Uses the real T00 design tokens from styles.css throughout (no bespoke
   palette) so this page reads as a continuation of the same dark-themed
   product every other page in this app already uses.
   ========================================================================== */

.land-body {
  margin: 0;
  background: var(--color-background);
  color: var(--color-text-primary);
  font-family: var(--font-ui);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
.land-body h1, .land-body h2, .land-body h3 { font-family: var(--font-display); margin: 0; color: var(--color-text-primary); }
.land-body p { margin: 0; }
.land-body a { color: inherit; text-decoration: none; }
.land-body ul { margin: 0; padding: 0; list-style: none; }
.land-body :focus-visible { outline: 2px solid var(--color-focus-ring); outline-offset: 3px; }

.land-skip-link {
  position: absolute; left: -9999px; top: 0; z-index: 200;
  background: var(--color-brand-navy); color: var(--color-text-primary); padding: var(--space-3) var(--space-5);
  border-radius: 0 0 var(--radius-sm) 0;
}
.land-skip-link:focus { left: 0; }

/* ---------- buttons ---------- */
.land-btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  height: 48px; padding-inline: 26px; border-radius: var(--radius-pill);
  font-weight: 700; font-size: 0.95rem; white-space: nowrap; cursor: pointer; border: 1.5px solid transparent;
  transition: transform 180ms var(--ease-premium), box-shadow 180ms var(--ease-premium), background 180ms var(--ease-premium), border-color 180ms var(--ease-premium), color 180ms var(--ease-premium);
}
.land-btn--sm { height: 40px; padding-inline: 20px; font-size: 0.85rem; }
.land-btn--lg { height: 54px; padding-inline: 32px; font-size: 1rem; }
.land-btn--primary { background: linear-gradient(145deg, var(--color-accent-yellow), var(--color-accent-yellow-strong)); color: var(--color-text-on-accent); box-shadow: var(--shadow-sm); }
.land-btn--primary:hover { transform: translateY(-2px); box-shadow: var(--shadow-glow-yellow); }
.land-btn--primary:active { transform: translateY(0) scale(0.98); }
.land-btn--outline { background: var(--color-surface-glass-light); color: var(--color-text-primary); border-color: var(--color-border); }
.land-btn--outline:hover { border-color: var(--color-brand-blue-soft); color: var(--color-brand-blue-soft); transform: translateY(-2px); box-shadow: var(--shadow-sm); }

/* ==========================================================================
   NAV
   ========================================================================== */
.land-nav { position: sticky; top: 0; z-index: 100; padding: 14px 20px; }
.land-nav__inner {
  max-width: 1280px; margin: 0 auto; display: flex; align-items: center; justify-content: space-between; gap: 20px;
  padding: 10px 18px; border-radius: var(--radius-pill);
  background: color-mix(in srgb, var(--color-surface-primary) 78%, transparent);
  backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--color-border-subtle);
  box-shadow: var(--shadow-sm);
  transition: box-shadow 220ms var(--ease-premium);
}
.land-nav__brand { display: flex; align-items: center; gap: 10px; }
.land-nav__logo { width: 38px; height: 38px; border-radius: 10px; object-fit: cover; flex-shrink: 0; }
.land-nav__brand-text { display: flex; flex-direction: column; line-height: 1.1; }
.land-nav__name { font-family: var(--font-display); font-weight: 600; font-size: 1.05rem; color: var(--color-text-primary); }
.land-nav__descriptor { font-size: 0.62rem; font-weight: 700; letter-spacing: 0.12em; color: var(--color-text-muted); }
.land-nav__links { display: flex; align-items: center; gap: 28px; font-size: 0.9rem; font-weight: 600; color: var(--color-text-secondary); }
.land-nav__links a { position: relative; padding: 4px 0; transition: color 180ms var(--ease-premium); }
.land-nav__links a::after { content: ''; position: absolute; left: 0; right: 0; bottom: -2px; height: 2px; background: var(--color-brand-blue-soft); border-radius: var(--radius-pill); transform: scaleX(0); transition: transform 220ms var(--ease-premium); }
.land-nav__links a:hover { color: var(--color-text-primary); }
.land-nav__links a:hover::after { transform: scaleX(1); }
.land-nav__actions { display: flex; align-items: center; gap: 10px; }
.land-nav__toggle { display: none; flex-direction: column; justify-content: center; gap: 4px; width: 40px; height: 40px; border-radius: 10px; border: none; background: none; cursor: pointer; }
.land-nav__toggle span { display: block; width: 20px; height: 2px; margin-inline: auto; background: var(--color-text-primary); border-radius: 2px; transition: transform 220ms var(--ease-premium), opacity 220ms var(--ease-premium); }
.land-nav__toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.land-nav__toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.land-nav__toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

.land-mobile-menu {
  display: none; flex-direction: column; gap: 4px; max-width: 1280px; margin: 8px auto 0; padding: 14px;
  border-radius: var(--radius-md); background: var(--color-surface-primary); border: 1px solid var(--color-border-subtle); box-shadow: var(--shadow-md);
  opacity: 0; transform: translateY(-8px); pointer-events: none; transition: opacity 220ms var(--ease-premium), transform 220ms var(--ease-premium);
}
.land-mobile-menu a { padding: 12px 10px; border-radius: var(--radius-sm); font-weight: 600; color: var(--color-text-primary); }
.land-mobile-menu a:hover { background: var(--color-surface-glass-light); }
.land-mobile-menu .land-btn { margin-top: 6px; width: 100%; }
.land-mobile-menu.is-open { opacity: 1; transform: translateY(0); pointer-events: auto; }

/* ==========================================================================
   HERO
   ========================================================================== */
.land-hero { position: relative; padding: 64px 20px 90px; overflow: hidden; }
.land-hero__glow {
  position: absolute; inset: -10% -10% auto -10%; height: 640px; z-index: 0;
  background: radial-gradient(55% 60% at 72% 15%, color-mix(in srgb, var(--color-brand-blue) 26%, transparent), transparent 70%),
              radial-gradient(45% 45% at 10% 40%, color-mix(in srgb, var(--color-accent-yellow) 8%, transparent), transparent 70%);
  animation: landGlowDrift 16s ease-in-out infinite alternate;
}
.land-hero__inner { position: relative; z-index: 1; max-width: 1280px; margin: 0 auto; display: grid; grid-template-columns: 1.05fr 0.95fr; gap: 56px; align-items: center; }
.land-hero__badge {
  display: inline-flex; align-items: center; padding: 8px 16px; border-radius: var(--radius-pill);
  background: color-mix(in srgb, var(--color-brand-blue) 20%, transparent); color: var(--color-brand-blue-soft);
  font-size: 0.7rem; font-weight: 800; letter-spacing: 0.08em; margin-bottom: 20px;
}
.land-hero__title { font-size: clamp(2.6rem, 4.6vw, 3.6rem); font-weight: 600; line-height: 1.08; letter-spacing: -0.01em; color: var(--color-text-primary); }
.land-hero__title-accent { background: linear-gradient(120deg, var(--color-brand-blue-soft), var(--color-brand-blue)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.land-hero__desc { margin-top: 22px; max-width: 46ch; font-size: 1.08rem; line-height: 1.6; color: var(--color-text-secondary); }
.land-hero__actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 32px; }
.land-hero__content .land-hero__trust { display: flex; flex-wrap: wrap; align-items: center; gap: 18px; margin-top: 48px; }
.land-hero__trust li { display: flex; align-items: center; gap: 8px; font-size: 0.86rem; font-weight: 600; color: var(--color-text-primary); position: relative; }
.land-hero__trust li svg { width: 16px; height: 16px; color: var(--color-brand-blue-soft); flex-shrink: 0; }
.land-hero__trust li + li::before { content: ''; position: absolute; left: -10px; top: 50%; width: 1px; height: 14px; background: var(--color-border-subtle); transform: translateY(-50%); }

/* ---------- hero product mock ---------- */
.land-hero__visual { position: relative; }
.land-mock { position: relative; max-width: 480px; margin-inline: auto; }
.land-mock__blob { position: absolute; border-radius: 50%; filter: blur(2px); z-index: 0; }
.land-mock__blob--a { width: 220px; height: 220px; top: -40px; right: -30px; background: color-mix(in srgb, var(--color-brand-blue) 30%, transparent); animation: landFloat 9s ease-in-out infinite; }
.land-mock__blob--b { width: 160px; height: 160px; bottom: -20px; left: -30px; background: color-mix(in srgb, var(--color-accent-yellow) 22%, transparent); animation: landFloat 11s ease-in-out infinite reverse; }

.land-mock__card--main {
  position: relative; z-index: 1; background: var(--color-surface-primary); border-radius: var(--radius-lg);
  border: 1px solid var(--color-border-subtle); box-shadow: var(--shadow-lg); padding: 18px; animation: landFloat 8s ease-in-out infinite;
}
.land-mock__titlebar { display: flex; align-items: center; gap: 6px; padding-bottom: 14px; margin-bottom: 14px; border-bottom: 1px solid var(--color-border-subtle); }
.land-mock__dot { width: 8px; height: 8px; border-radius: 50%; background: var(--color-border); }
.land-mock__titlebar-label { margin-left: 8px; font-size: 0.78rem; font-weight: 700; color: var(--color-text-primary); }
.land-mock__grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.land-mock__widget { background: var(--color-surface-glass-light); border: 1px solid var(--color-border-subtle); border-radius: var(--radius-md); padding: 14px; display: flex; flex-direction: column; gap: 6px; }
.land-mock__widget-label { font-size: 0.68rem; font-weight: 700; color: var(--color-text-muted); }
.land-mock__widget-sub { font-size: 0.66rem; color: var(--color-text-muted); }
.land-mock__ring {
  width: 56px; height: 56px; border-radius: 50%; display: grid; place-items: center; margin: 2px 0;
  background: conic-gradient(var(--color-brand-blue-soft) 0 96%, var(--color-border) 0);
}
.land-mock__ring span { width: 42px; height: 42px; border-radius: 50%; background: var(--color-surface-primary); display: grid; place-items: center; font-size: 0.74rem; font-weight: 800; color: var(--color-text-primary); }
.land-mock__bars { display: flex; align-items: flex-end; gap: 6px; height: 44px; margin: 2px 0; }
.land-mock__bars span { flex: 1; border-radius: 4px 4px 0 0; background: linear-gradient(180deg, var(--color-brand-blue-soft), var(--color-brand-blue)); height: var(--h); animation: landBarGrow 900ms var(--ease-premium) both; }
.land-mock__bars span:nth-child(2) { animation-delay: 60ms; } .land-mock__bars span:nth-child(3) { animation-delay: 120ms; } .land-mock__bars span:nth-child(4) { animation-delay: 180ms; } .land-mock__bars span:nth-child(5) { animation-delay: 240ms; }
.land-mock__widget--messages { margin-top: 12px; }
.land-mock__chat { display: flex; flex-direction: column; gap: 6px; }
.land-mock__chat-row { display: flex; align-items: flex-end; gap: 8px; }
.land-mock__chat-row--reply { justify-content: flex-end; }
.land-mock__avatar { width: 24px; height: 24px; border-radius: 50%; background: var(--color-brand-navy-strong); color: var(--color-text-primary); font-size: 0.6rem; font-weight: 800; display: grid; place-items: center; flex-shrink: 0; }
.land-mock__bubble { background: var(--color-surface-secondary); border-radius: 12px 12px 12px 2px; padding: 7px 11px; font-size: 0.7rem; color: var(--color-text-primary); max-width: 190px; box-shadow: var(--shadow-sm); }
.land-mock__bubble--reply { background: var(--color-brand-blue); color: var(--color-text-primary); border-radius: 12px 12px 2px 12px; }

.land-mock__float { position: absolute; z-index: 2; background: var(--color-surface-primary); border-radius: var(--radius-pill); box-shadow: var(--shadow-md); border: 1px solid var(--color-border-subtle); padding: 8px; display: flex; align-items: center; }
.land-mock__float--avatars { top: 20px; left: -36px; gap: 0; animation: landFloat 7.5s ease-in-out infinite 0.4s; }
.land-mock__float--avatars .land-mock__avatar--ring { margin-left: -10px; }
.land-mock__float--avatars .land-mock__avatar--ring:first-child { margin-left: 0; }
.land-mock__avatar--ring { width: 30px; height: 30px; background: var(--color-surface-primary); color: var(--color-text-primary); box-shadow: 0 0 0 2px var(--ring, var(--color-brand-blue)); }
.land-mock__float--status { bottom: -18px; right: 24px; gap: 8px; padding: 10px 16px; font-size: 0.74rem; font-weight: 700; color: var(--color-text-primary); animation: landFloat 8.5s ease-in-out infinite 0.8s; }
.land-mock__status-dot { width: 9px; height: 9px; border-radius: 50%; background: var(--color-success); box-shadow: 0 0 0 4px color-mix(in srgb, var(--color-success) 24%, transparent); }

/* ==========================================================================
   TRUST STRIP
   ========================================================================== */
.land-strip { padding: 36px 20px; border-top: 1px solid var(--color-border-subtle); border-bottom: 1px solid var(--color-border-subtle); background: var(--color-surface-primary); }
.land-strip__inner { max-width: 1280px; margin: 0 auto; display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.land-strip__item { display: flex; align-items: center; justify-content: center; gap: 10px; font-weight: 700; font-size: 0.92rem; color: var(--color-text-primary); text-align: center; }
.land-strip__item svg { width: 20px; height: 20px; color: var(--color-brand-blue-soft); flex-shrink: 0; }

/* ==========================================================================
   FEATURES
   ========================================================================== */
.land-features { padding: 110px 20px; max-width: 1280px; margin: 0 auto; }
.land-eyebrow { display: inline-block; font-size: 0.7rem; font-weight: 800; letter-spacing: 0.1em; color: var(--color-brand-blue-soft); margin-bottom: 14px; }
.land-features__head { max-width: 640px; margin: 0 auto 56px; text-align: center; }
.land-features__head h2 { font-size: clamp(1.8rem, 3vw, 2.4rem); font-weight: 600; }
.land-features__head p { margin-top: 14px; font-size: 1.05rem; color: var(--color-text-secondary); }
.land-features__grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.land-feature-card {
  position: relative; padding: 32px 26px; border-radius: var(--radius-lg); background: var(--color-surface-primary);
  border: 1px solid var(--color-border-subtle); box-shadow: var(--shadow-sm); overflow: hidden;
  transition: transform 260ms var(--ease-premium), box-shadow 260ms var(--ease-premium), border-color 260ms var(--ease-premium);
}
.land-feature-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); border-color: color-mix(in srgb, var(--color-brand-blue) 35%, transparent); }
.land-feature-card__icon {
  display: grid; place-items: center; width: 52px; height: 52px; border-radius: 14px; margin-bottom: 18px;
  background: color-mix(in srgb, var(--color-brand-blue) 16%, transparent); color: var(--color-brand-blue-soft);
}
.land-feature-card__icon svg { width: 24px; height: 24px; }
.land-feature-card h3 { font-size: 1.1rem; font-weight: 600; margin-bottom: 8px; color: var(--color-text-primary); }
.land-feature-card p { font-size: 0.92rem; line-height: 1.55; color: var(--color-text-secondary); }
.land-feature-card__accent { position: absolute; left: 0; bottom: 0; height: 3px; width: 100%; background: linear-gradient(90deg, var(--color-brand-blue), var(--color-brand-blue-soft)); transform: scaleX(0); transform-origin: left; transition: transform 320ms var(--ease-premium); }
.land-feature-card:hover .land-feature-card__accent { transform: scaleX(1); }

/* ==========================================================================
   ABOUT
   ========================================================================== */
.land-about { background: var(--color-surface-primary); border-top: 1px solid var(--color-border-subtle); border-bottom: 1px solid var(--color-border-subtle); padding: 90px 20px; }
.land-about__inner { max-width: 760px; margin: 0 auto; text-align: center; }
.land-about__inner h2 { font-size: clamp(1.7rem, 2.8vw, 2.2rem); font-weight: 600; margin-top: 10px; }
.land-about__inner p { margin-top: 18px; font-size: 1.05rem; line-height: 1.6; color: var(--color-text-secondary); }

/* ==========================================================================
   FINAL CTA
   ========================================================================== */
.land-cta { position: relative; overflow: hidden; padding: 100px 20px; background: linear-gradient(155deg, var(--color-brand-navy) 0%, var(--color-brand-navy-strong) 55%, var(--color-brand-blue) 130%); text-align: center; }
.land-cta__glow { position: absolute; inset: 0; background: radial-gradient(50% 70% at 80% 0%, color-mix(in srgb, var(--color-brand-blue-soft) 32%, transparent), transparent 70%); pointer-events: none; }
.land-cta::before, .land-cta::after { content: ''; position: absolute; border: 1px solid color-mix(in srgb, var(--color-text-primary) 12%, transparent); border-radius: 50%; }
.land-cta::before { width: 420px; height: 420px; top: -180px; left: -140px; }
.land-cta::after { width: 300px; height: 300px; bottom: -160px; right: -100px; }
.land-cta__inner { position: relative; z-index: 1; max-width: 640px; margin: 0 auto; }
.land-cta h2 { color: var(--color-text-primary); font-size: clamp(1.9rem, 3.2vw, 2.6rem); font-weight: 600; }
.land-cta p { margin-top: 16px; color: color-mix(in srgb, var(--color-text-primary) 78%, transparent); font-size: 1.05rem; }
.land-cta .land-btn { margin-top: 34px; }
.land-cta .land-btn--primary:hover { box-shadow: var(--shadow-glow-yellow); }

/* ==========================================================================
   FOOTER
   ========================================================================== */
.land-footer { background: var(--color-background); border-top: 1px solid var(--color-border-subtle); padding: 56px 20px 28px; }
.land-footer__top { max-width: 1280px; margin: 0 auto; display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr; gap: 40px; }
.land-footer__brand p { margin-top: 14px; font-size: 0.88rem; color: var(--color-text-secondary); max-width: 34ch; line-height: 1.5; }
.land-footer__contact-link { display: inline-flex; align-items: center; gap: 8px; margin-top: 16px; font-size: 0.88rem; font-weight: 600; color: var(--color-text-primary); transition: color 0.2s cubic-bezier(0.22, 1, 0.36, 1); }
.land-footer__contact-link svg { width: 16px; height: 16px; color: var(--color-brand-blue-soft); flex-shrink: 0; }
.land-footer__contact-link:hover { color: var(--color-brand-blue-soft); }
.land-footer__col h4 { font-family: var(--font-ui); font-size: 0.78rem; font-weight: 800; letter-spacing: 0.06em; color: var(--color-text-primary); margin-bottom: 14px; }
.land-footer__col a, .land-footer__placeholder { display: block; margin-bottom: 10px; font-size: 0.88rem; color: var(--color-text-secondary); }
.land-footer__col a:hover { color: var(--color-brand-blue-soft); }
.land-footer__bottom { max-width: 1280px; margin: 40px auto 0; padding-top: 22px; border-top: 1px solid var(--color-border-subtle); font-size: 0.8rem; color: var(--color-text-muted); }

/* ==========================================================================
   SCROLL-REVEAL + MOTION
   ========================================================================== */
.land-reveal { opacity: 0; transform: translateY(22px); transition: opacity 700ms var(--ease-premium), transform 700ms var(--ease-premium); transition-delay: var(--land-reveal-delay, 0ms); }
.land-reveal.is-in { opacity: 1; transform: translateY(0); }

@keyframes landFloat { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-10px); } }
@keyframes landGlowDrift { from { transform: translate(0, 0); } to { transform: translate(-3%, 2%); } }
@keyframes landBarGrow { from { transform: scaleY(0); } to { transform: scaleY(1); } }

@media (prefers-reduced-motion: reduce) {
  .land-reveal { transition: opacity 1ms linear; transform: none; }
  .land-hero__glow, .land-mock__blob--a, .land-mock__blob--b, .land-mock__card--main, .land-mock__float--avatars, .land-mock__float--status { animation: none; }
  .land-mock__bars span { animation: none; transform: scaleY(1); }
  .land-feature-card, .land-btn { transition: none; }
}

/* ==========================================================================
   RESPONSIVE — 1366px laptop / 1023px tablet / 767px mobile
   ========================================================================== */
@media (max-width: 1366px) {
  .land-hero__inner { gap: 40px; }
  .land-mock { max-width: 420px; }
}

@media (max-width: 1023px) {
  .land-nav__links { display: none; }
  .land-nav__toggle { display: flex; }
  .land-mobile-menu { display: flex; }
  .land-hero__inner { grid-template-columns: 1fr; text-align: center; }
  .land-hero__content { order: 1; display: flex; flex-direction: column; align-items: center; }
  .land-hero__trust { justify-content: center; }
  .land-hero__trust li + li::before { display: none; }
  .land-hero__visual { order: 2; margin-top: 16px; }
  .land-mock { max-width: 440px; }
  .land-strip__inner { grid-template-columns: repeat(2, 1fr); }
  .land-features__grid { grid-template-columns: repeat(2, 1fr); }
  .land-footer__top { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 767px) {
  .land-nav { padding: 10px 14px; }
  .land-nav__descriptor { display: none; }
  .land-hero { padding: 40px 16px 60px; }
  .land-hero__badge { font-size: 0.64rem; }
  .land-hero__actions { flex-direction: column; align-items: stretch; }
  .land-hero__actions .land-btn { width: 100%; }
  .land-mock { max-width: 320px; }
  .land-mock__float--avatars { left: -14px; }
  .land-mock__float--status { right: -10px; font-size: 0.68rem; padding: 8px 12px; }
  .land-strip__inner { grid-template-columns: 1fr 1fr; gap: 24px 16px; }
  .land-strip__item { flex-direction: column; gap: 8px; font-size: 0.8rem; }
  .land-features { padding: 70px 16px; }
  .land-features__grid { grid-template-columns: 1fr; }
  .land-about { padding: 60px 16px; }
  .land-cta { padding: 70px 16px; }
  .land-cta .land-btn { width: 100%; }
  .land-footer__top { grid-template-columns: 1fr; gap: 28px; }
}