/* Colours are taken from the printed card. */
:root {
  --sky-top: #14022e;
  --sky-mid: #3a0d63;
  --sky-low: #7a1a8f;
  --pink: #c8177a;
  --pink-deep: #8e0e57;
  --gold: #ffc93c;
  --gold-deep: #c47f00;
  --white: #fff;
}
* { box-sizing: border-box; }
html, body {
  margin: 0; height: 100%; overflow: hidden; background: var(--sky-top); color: var(--white);
  font-family: 'Poppins', system-ui, sans-serif; -webkit-tap-highlight-color: transparent;
  touch-action: none; user-select: none;
}
/* sized in pixels by main.js so it always matches the window */
#camerafeed { position: fixed; left: 0; top: 0; display: block; }
.hidden { display: none !important; }
img { -webkit-user-drag: none; }

/* ---------- card sky ---------- */
.sky {
  position: fixed; inset: 0; z-index: 10; overflow: hidden;
  background: linear-gradient(180deg, var(--sky-top) 0%, var(--sky-mid) 55%, var(--sky-low) 100%);
}
.sky.center { display: grid; place-items: center; padding: 24px; }
.stars {
  position: absolute; inset: 0; pointer-events: none;
  background-image:
    radial-gradient(1.6px 1.6px at 12% 8%, #fff 99%, transparent),
    radial-gradient(1.2px 1.2px at 31% 19%, rgba(255,255,255,.7) 99%, transparent),
    radial-gradient(1.8px 1.8px at 57% 6%, #fff 99%, transparent),
    radial-gradient(1.2px 1.2px at 74% 24%, rgba(255,255,255,.6) 99%, transparent),
    radial-gradient(1.4px 1.4px at 88% 12%, #fff 99%, transparent),
    radial-gradient(1px 1px at 46% 31%, rgba(255,255,255,.6) 99%, transparent),
    radial-gradient(1.4px 1.4px at 6% 36%, rgba(255,255,255,.8) 99%, transparent),
    radial-gradient(1.1px 1.1px at 93% 41%, rgba(255,255,255,.7) 99%, transparent);
  background-size: 100% 100%;
}
.art { position: absolute; pointer-events: none; display: block; height: auto; }

.lantern { top: -6px; transform-origin: 50% 0; animation: sway 5s ease-in-out infinite alternate; }
.l1 { left: 4%; width: clamp(64px, 19vw, 120px); }
.l2 { right: 7%; width: clamp(54px, 15vw, 100px); top: -30px; animation-duration: 6.5s; animation-delay: -2s; }
@keyframes sway { from { transform: rotate(-2.5deg); } to { transform: rotate(2.5deg); } }

.b1 { top: 3%; left: 36%; width: clamp(110px, 32vw, 200px); }
.b2 { top: 16%; right: -7%; width: clamp(100px, 28vw, 180px); }
.b3 { top: 21%; left: -9%; width: clamp(90px, 25vw, 160px); opacity: .9; }
.s1 { top: 13%; left: 27%; width: 22px; }
.s2 { top: 9%; right: 30%; width: 16px; }

/* ---------- the message panel ---------- */
.message {
  position: absolute; left: 50%; top: 31%; transform: translateX(-50%);
  width: min(88vw, 400px); z-index: 2;
}
.panel {
  position: relative; text-align: center; transform: rotate(-1.5deg);
  border: 30px solid transparent; border-image: url(ui/panel.webp) 70 fill / 30px round;
  padding: 6px 6px 10px; filter: drop-shadow(0 10px 18px rgba(20, 2, 46, .45));
}
.panel-logo { display: block; width: min(62%, 210px); margin: 0 auto 10px; }
.start-logo { width: min(92%, 300px); margin: 6px auto 14px; }
.panel .lead { font-size: 16px; font-weight: 500; margin: 0 4px 6px; }
.panel h1 {
  margin: 0 0 8px; font-weight: 800; font-size: clamp(30px, 9vw, 40px); line-height: 1.05; color: var(--gold);
  text-shadow: 0 2px 0 var(--pink-deep);
}
.panel p { margin: 0 0 8px; font-size: 14.5px; line-height: 1.5; }
.panel .sign { margin: 4px 0 0; font-weight: 700; font-size: 13px; letter-spacing: .02em; color: var(--gold); }
.panel-flowers { width: clamp(78px, 24vw, 110px); right: -16px; top: -48px; z-index: 3; transform: rotate(8deg); }

.gold-btn {
  position: relative; display: block; width: 100%; margin: 26px 0 0; padding: 16px 20px; cursor: pointer;
  border: 0; border-radius: 10px; background: var(--gold); color: var(--pink-deep);
  font: 700 17px 'Poppins', sans-serif; box-shadow: 0 4px 0 var(--gold-deep);
}
.gold-btn::before {
  content: ''; position: absolute; inset: 5px; border-radius: 6px; pointer-events: none;
  border: 2px dotted rgba(200, 23, 122, .55);
}
.gold-btn:active { transform: translateY(3px); box-shadow: 0 1px 0 var(--gold-deep); }
.text-btn {
  display: block; margin: 14px auto 0; padding: 6px 4px; border: 0; background: none; cursor: pointer;
  font: 500 14px 'Poppins', sans-serif; color: rgba(255, 255, 255, .85);
  text-decoration: underline; text-underline-offset: 4px; text-decoration-color: rgba(255, 201, 60, .6);
}

/* ---------- ground: hills, diyas, marigolds ---------- */
.ground { position: absolute; left: 0; right: 0; bottom: 0; height: 24vh; pointer-events: none; }
.ground .feather { z-index: 0; } .hills { z-index: 1; } .diyas, .ground-flowers { z-index: 2; }
.hills { position: absolute; left: 0; bottom: 0; width: 100%; height: 72%; object-fit: cover; object-position: top; }
.diyas { position: absolute; left: 24%; right: 4%; bottom: 9%; display: flex; justify-content: space-around; align-items: flex-end; }
.diyas img { width: clamp(50px, 14vw, 84px); filter: drop-shadow(0 4px 6px rgba(20, 2, 46, .4)); }
.diyas img:nth-child(2) { width: clamp(42px, 12vw, 72px); margin-bottom: 6px; }
.ground-flowers { left: -26px; bottom: -22px; width: clamp(100px, 30vw, 170px); }
.feather { left: -6px; bottom: 55%; width: clamp(46px, 12vw, 76px); transform: rotate(-14deg); }

/* ---------- loading splash ---------- */
.splash { position: relative; text-align: center; }
.splash-logo { display: block; width: min(72vw, 300px); margin: 0 auto 26px; }
.splash-diya { width: 110px; display: block; margin: 0 auto 6px; animation: glow 1.6s ease-in-out infinite alternate; }
@keyframes glow { from { filter: brightness(.92); } to { filter: brightness(1.12); } }
.splash p { margin: 0 0 28px; font-weight: 600; font-size: 17px; color: var(--gold); }
.powered { display: block; height: 26px; margin: 0 auto; opacity: .9; }

/* ---------- scanning ---------- */
#scan { position: fixed; inset: 0; z-index: 5; pointer-events: none; }
.frame {
  position: absolute; left: 50%; top: 44%; transform: translate(-50%, -50%);
  width: min(80vw, 440px); aspect-ratio: 4 / 3;
}
.frame i { position: absolute; width: 36px; height: 36px; border: 4px solid var(--gold); border-radius: 3px; }
.frame i:nth-child(1) { left: 0; top: 0; border-right: 0; border-bottom: 0; }
.frame i:nth-child(2) { right: 0; top: 0; border-left: 0; border-bottom: 0; }
.frame i:nth-child(3) { left: 0; bottom: 0; border-right: 0; border-top: 0; }
.frame i:nth-child(4) { right: 0; bottom: 0; border-left: 0; border-top: 0; }

/* small pink paper chips with the card's gold dotted edge */
.chip {
  position: fixed; left: 50%; transform: translateX(-50%); z-index: 5; margin: 0;
  display: flex; align-items: center; gap: 12px; padding: 12px 16px; max-width: calc(100vw - 32px);
  background: var(--pink); border-radius: 10px; box-shadow: 0 6px 18px rgba(20, 2, 46, .45), 0 0 0 3px var(--gold);
  font-weight: 600; font-size: 14.5px; line-height: 1.3; pointer-events: none;
}
.chip::before {
  content: ''; position: absolute; inset: 5px; border-radius: 6px; border: 2px dotted rgba(255, 201, 60, .7);
  pointer-events: none;
}
.find { bottom: calc(40px + env(safe-area-inset-bottom)); white-space: nowrap; }
.find img {
  /* the CLI thumbnail is the card turned 90° clockwise; turn it back */
  width: 42px; height: 56px; transform: rotate(-90deg); margin: -7px 0; border-radius: 3px; flex: none;
}
.hint { bottom: calc(40px + env(safe-area-inset-bottom)); white-space: nowrap; animation: fadeout .8s ease 7s forwards; }
@keyframes fadeout { to { opacity: 0; } }

/* ---------- error ---------- */
.error-panel { width: min(88vw, 380px); }
.error-panel h2 { margin: 0 0 8px; font-size: 24px; font-weight: 800; color: var(--gold); }
.error-panel .gold-btn { margin-top: 14px; }

/* ---------- brand badge ---------- */
.badge {
  position: fixed; top: calc(16px + env(safe-area-inset-top)); left: 16px; z-index: 6;
  width: min(44vw, 190px); height: auto; pointer-events: none;
  filter: drop-shadow(0 2px 6px rgba(20, 2, 46, .6));
}

/* ---------- sound ---------- */
.mute {
  position: fixed; top: calc(14px + env(safe-area-inset-top)); right: 14px; z-index: 6;
  width: 44px; height: 44px; border-radius: 50%; display: grid; place-items: center; cursor: pointer;
  color: var(--pink-deep); background: var(--gold); border: 0; box-shadow: 0 3px 0 var(--gold-deep);
}
.mute .cross { display: none; }
.mute.off .cross { display: inline; }
.mute.off .waves { display: none; }

@media (min-aspect-ratio: 1/1) {
  .message { top: 24%; }
  .ground { height: 28vh; }
}