/* ==========================================================================
   LANDING ("/") — day/night sky with swapping digits.
   Colours are CSS variables written every frame by landing.js:
   --top, --hz (sky gradient), --ink, --ink2, --line, --water, --t (0 day → 1 night)
   ========================================================================== */
body.landing {
  --top: var(--day-bg); --hz: #F1E2CC; --ink: var(--day-ink); --ink2: var(--day-ink-2); --line: rgba(22,24,27,.22); --water: #E2DDD2;
  --hzY: 63svh; --ds: min(46svh, 29vw);
  height: 100svh; min-height: 560px; overflow: hidden; touch-action: none; overscroll-behavior: none; color: var(--ink); background: var(--top);
}

/* ---------- Sky ---------- */
.sky { position: fixed; inset: 0; background: linear-gradient(180deg, var(--top) 0%, var(--hz) var(--hzY), var(--water) var(--hzY), var(--water) 100%); }
.sky .glow { position: absolute; left: 0; right: 0; top: calc(var(--hzY) - 40svh); height: 40svh; background: radial-gradient(60% 100% at var(--sx, 30%) 100%, color-mix(in srgb, var(--sun) calc(var(--glow, 0) * 60%), transparent), transparent 70%); pointer-events: none; }
.sky .sun { position: absolute; width: calc(var(--ds) * .52); aspect-ratio: 1; border-radius: 50%; background: radial-gradient(circle at 38% 34%, #FFD877, var(--sun) 58%, #C27606 100%); left: var(--sx, 30%); top: var(--sy, 20svh); translate: -50% -50%; box-shadow: 0 0 calc(var(--ds) * .4) color-mix(in srgb, var(--sun) 35%, transparent); }
.sky .moon { position: absolute; width: calc(var(--ds) * .22); aspect-ratio: 1; border-radius: 50%; left: var(--mx, 84%); top: var(--my, 70svh); translate: -50% -50%; opacity: var(--mo, 0); background: var(--moon); -webkit-mask: radial-gradient(circle at 68% 34%, transparent 46%, #000 47%); mask: radial-gradient(circle at 68% 34%, transparent 46%, #000 47%); filter: drop-shadow(0 0 22px rgba(201,194,255,.45)); }
.sky .water { position: absolute; left: 0; right: 0; top: var(--hzY); bottom: 0; overflow: hidden; background: var(--water); }
.sky .sun-reflect { position: absolute; left: var(--sx, 30%); top: 0; width: calc(var(--ds) * .5); height: 70%; translate: -50% 0; background: repeating-linear-gradient(180deg, color-mix(in srgb, var(--sun) 70%, transparent) 0 3px, transparent 3px 9px); -webkit-mask: linear-gradient(180deg, #000, transparent 80%); mask: linear-gradient(180deg, #000, transparent 80%); opacity: var(--ro, .35); filter: blur(.6px); }
.sky .horizon { position: absolute; left: 0; right: 0; top: var(--hzY); height: 1px; background: var(--line); transform-origin: 50% 50%; animation: draw 1.6s .2s var(--ease-io) both; }
@keyframes draw { from { transform: scaleX(0); } }

/* ---------- Top bar ---------- */
.lbar { position: fixed; z-index: 5; top: 0; left: 0; right: 0; display: flex; justify-content: space-between; align-items: flex-start; padding: 22px var(--gutter); }
.who { display: flex; flex-direction: column; gap: 4px; }
.who .name { font-weight: 650; font-size: 16px; letter-spacing: -.015em; }
.who .sub, .clock { color: var(--ink2); }
.clock { display: inline-flex; align-items: center; gap: 8px; }
.clock .pulse { width: 7px; height: 7px; border-radius: 50%; background: var(--sun); animation: pulse 2s infinite; }
@keyframes pulse { 50% { opacity: .25; } }

/* ---------- Digits ---------- */
.stage { position: fixed; inset: 0; z-index: 2; pointer-events: none; }
.digits { position: absolute; left: 50%; bottom: calc(100svh - var(--hzY)); translate: -50% 0; display: flex; align-items: baseline; font-family: var(--f-display); font-size: var(--ds); line-height: .74; color: var(--ink); white-space: nowrap; }
.digits .dg { display: inline-block; width: .66em; text-align: center; will-change: transform; }
.digits .to { font-size: .16em; font-style: italic; margin: 0 .5em; translate: 0 -.9em; letter-spacing: .02em; color: var(--ink2); }
.digits.mirror { bottom: auto; top: var(--hzY); align-items: flex-start; transform: scaleY(-1); transform-origin: 50% 50%; opacity: .13; z-index: 1; filter: blur(1.5px); -webkit-mask: linear-gradient(0deg, #000 30%, transparent 85%); mask: linear-gradient(0deg, #000 30%, transparent 85%); }
.digits.mirror .to { visibility: hidden; }
.digits .dg, .digits .to { animation: rise 1.4s var(--ease-out) both; }
.digits .to { animation-delay: .25s; }
.digits .dg.b { animation-delay: .12s; }
@keyframes rise { from { opacity: 0; translate: 0 .4em; } }

/* ---------- Doors (the two choices) ---------- */
.doors { position: fixed; z-index: 4; left: 0; right: 0; bottom: 0; display: grid; grid-template-columns: 1fr auto 1fr; align-items: end; gap: 24px; padding: 0 var(--gutter) max(26px, env(safe-area-inset-bottom)); }
.door { touch-action: manipulation; display: grid; gap: 8px; max-width: 360px; padding: 18px 0 4px; color: var(--ink); transition: opacity .5s var(--ease-out), transform .6s var(--ease-out); animation: rise .9s .55s var(--ease-out) both; }
.door.night-door { justify-self: end; text-align: right; animation-delay: .65s; }
.door .when { color: var(--ink2); }
.door .title { font-size: clamp(30px, 3.4vw, 46px); }
.door .what { font-size: 15px; line-height: 1.45; color: var(--ink2); max-width: 34ch; }
.door.night-door .what { margin-left: auto; }
.door .go { display: inline-flex; align-items: center; gap: 8px; margin-top: 6px; color: var(--ink); }
.door.night-door .go { justify-content: flex-end; }
.door .go i { display: inline-block; width: 18px; height: 18px; transition: transform .5s var(--ease-out); }
.door .go::after { content: ""; }
.door:hover .go i { transform: translateX(6px); }
.door .go { position: relative; padding-bottom: 6px; }
.door .go::before { content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 1px; background: currentColor; transform: scaleX(.25); transform-origin: left; transition: transform .6s var(--ease-out); }
.door.night-door .go::before { transform-origin: right; }
.door:hover .go::before, .door:focus-visible .go::before { transform: scaleX(1); }
body.landing[data-side="0"] .night-door, body.landing[data-side="1"] .day-door { opacity: .7; }

.hint { display: flex; align-items: center; gap: 10px; color: var(--ink2); padding-bottom: 10px; animation: rise .9s .8s var(--ease-out) both; }
.hint i { position: relative; width: 84px; height: 1px; background: var(--line); }
.hint i::after { content: ""; position: absolute; top: -4px; left: calc(var(--t, 0) * 76px); width: 8px; height: 8px; border-radius: 50%; background: var(--sun); }

/* ---------- Small screens ---------- */
@media (max-width: 760px) {
  body.landing { --hzY: 46svh; --ds: min(52vw, 30svh); }
  .doors { grid-template-columns: 1fr; gap: 0; padding-bottom: max(18px, env(safe-area-inset-bottom)); }
  .hint { display: none; }
  .sky .sun-reflect { height: 32%; }
  .door, .door.night-door { justify-self: stretch; text-align: left; max-width: none; padding: 16px 0; border-top: 1px solid var(--line); grid-template-columns: 1fr auto; grid-template-areas: "when go" "title go" "what what"; gap: 4px 12px; }
  .door .when { grid-area: when; } .door .title { grid-area: title; font-size: 30px; } .door .what { grid-area: what; font-size: 14px; margin: 0 !important; }
  .door .go, .door.night-door .go { grid-area: go; align-self: center; font-size: 0; padding: 0; }
  .door .go::before { display: none; }
  .door .go i { width: 26px; height: 26px; }
  body.landing[data-side] .door { opacity: 1; }
}
@media (max-height: 560px) and (min-width: 761px) { .door .what { display: none; } }