/* Zellers Digital Locker Game
   Colours sampled from the supplied artwork:
   gold (logo mean) #b5894f, gold light #c09463, bg #10071e, locker body #191326 */
:root {
  --gold: #c89a5a;
  --gold-hi: #f0cf8e;
  --gold-lo: #8f6634;
  --ink: #10071e;
  --panel: #150d24;
  --light: #e4dff0;
  --vh: 1vh;
  --board-w: 320px;
  --font: 'Roboto Condensed', 'Arial Narrow', 'Helvetica Neue', Arial, sans-serif;
}

[hidden] { display: none !important; }
* { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }

html, body {
  margin: 0; height: 100%; overflow: hidden;
  background: var(--ink) url('../assets/bg.webp?v=1') center / cover no-repeat;
  color: var(--light); font-family: var(--font);
  -webkit-user-select: none; user-select: none; overscroll-behavior: none;
}

#app { position: fixed; inset: 0; }

.screen {
  position: absolute; inset: 0;
  display: flex; flex-direction: column; align-items: center;
  padding: max(env(safe-area-inset-top), calc(var(--vh) * 3)) 16px max(env(safe-area-inset-bottom), calc(var(--vh) * 3));
  animation: fadeIn .45s ease both;
}

/* ---------- type ---------- */
p { margin: 0; text-align: center; }
.t-light { color: var(--light); }
.t-gold {
  color: var(--gold);
  background: linear-gradient(180deg, var(--gold-hi) 0%, var(--gold) 55%, var(--gold-lo) 100%);
  -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
}
.t-sub  { font-weight: 400; letter-spacing: .06em; font-size: min(6.6vw, calc(var(--vh) * 3.1), 30px); line-height: 1.15; }
.t-hero { font-weight: 700; letter-spacing: .03em; font-size: min(15vw, calc(var(--vh) * 7.2), 72px); line-height: 1.02; }
.t-foot { font-weight: 600; letter-spacing: .04em; font-size: min(6vw, calc(var(--vh) * 2.8), 28px); }
.t-small{ font-weight: 400; letter-spacing: .12em; font-size: min(4.2vw, 18px); margin-top: 4px; }
.t-name { font-weight: 700; font-size: min(8vw, 36px); line-height: 1.1; margin: 2px 0 8px; word-break: break-word; }
.t-gift { font-weight: 700; font-size: min(7vw, 30px); line-height: 1.1; margin-bottom: 12px; }
.t-note { font-size: min(3.8vw, 16px); opacity: .8; line-height: 1.45; }
.t-lose { font-size: min(11vw, 52px); margin: 18px 0 14px; }

/* ---------- logo ---------- */
.logo { display: block; height: auto; filter: drop-shadow(0 2px 10px rgba(0,0,0,.5)); }
.logo-xl { width: min(70vw, calc(var(--vh) * 26), 340px); margin-bottom: calc(var(--vh) * 4); }
.logo-md { width: min(52vw, calc(var(--vh) * 20), 260px); margin: calc(var(--vh) * 6) 0 calc(var(--vh) * 5); }
.logo-sm { width: min(40vw, calc(var(--vh) * 12), 200px); margin: 0 auto calc(var(--vh) * 1); }

/* ---------- start ---------- */
#screen-start { justify-content: center; gap: calc(var(--vh) * 7); }
.start-wrap { display: flex; flex-direction: column; align-items: center; }

/* ---------- buttons ---------- */
.btn-gold {
  font-family: var(--font); font-weight: 700; letter-spacing: .12em;
  font-size: min(6vw, 24px); color: #1b0f06;
  width: min(72vw, 320px); height: min(15vw, 60px);
  border: 1px solid var(--gold-hi); border-radius: 999px; cursor: pointer;
  background: linear-gradient(180deg, #f6d99c 0%, #d3a664 45%, #9b6d36 100%);
  box-shadow: 0 0 0 4px rgba(200,154,90,.18), 0 10px 26px rgba(0,0,0,.55), inset 0 1px 0 rgba(255,255,255,.6);
  transition: transform .12s ease, filter .12s ease;
}
.btn-gold:active { transform: scale(.96); filter: brightness(.92); }
.btn-gold:disabled { filter: grayscale(.5) brightness(.7); }
#btn-start { animation: pulse 2.2s ease-in-out infinite; }

/* ---------- form ---------- */
.form { width: min(100%, 420px); display: flex; flex-direction: column; align-items: center; gap: calc(var(--vh) * 2.4); }
.form .t-sub { margin-bottom: calc(var(--vh) * 1); }
.field {
  width: 100%; height: min(15vw, 60px);
  font-family: var(--font); font-size: min(5.4vw, 22px); letter-spacing: .06em;
  text-align: center; color: #fff;
  background: rgba(21, 13, 36, .82);
  border: 1px solid rgba(200,154,90,.75); border-radius: 12px; outline: none;
  box-shadow: inset 0 0 0 1px rgba(0,0,0,.4), inset 0 0 18px rgba(0,0,0,.45);
  -webkit-user-select: text; user-select: text;
  transition: border-color .2s, box-shadow .2s;
}
.field::placeholder { color: rgba(228,223,240,.45); text-align: center; }
.field:focus { border-color: var(--gold-hi); box-shadow: 0 0 0 3px rgba(240,207,142,.2), inset 0 0 18px rgba(0,0,0,.45); }
.field.bad { border-color: #e0615c; animation: nudge .35s; }
.form-error { min-height: 1.3em; color: #ff8f86; font-size: min(4vw, 16px); }
#btn-submit { margin-top: calc(var(--vh) * 1); }

/* ---------- game ---------- */
#screen-game { justify-content: space-between; }
.game-head { display: flex; flex-direction: column; align-items: center; flex: none; }
.board-slot { flex: 1 1 auto; width: 100%; display: flex; align-items: center; justify-content: center; min-height: 0; }
.game-foot { flex: none; padding-top: calc(var(--vh) * 1); }

/* board: 3 x 3 lockers. locker art = 900 x 1168 */
.board {
  --c: calc(var(--board-w) / 3.26);          /* locker width */
  --g: calc(var(--c) * .06);                 /* gap */
  --p: calc(var(--c) * .07);                 /* frame padding */
  width: var(--board-w);
  display: grid; grid-template-columns: repeat(3, var(--c));
  gap: var(--g); padding: var(--p);
  background: linear-gradient(180deg, rgba(34,24,52,.92), rgba(20,13,34,.92));
  border: 1px solid rgba(200,154,90,.28); border-radius: calc(var(--c) * .07);
  box-shadow: 0 18px 50px rgba(0,0,0,.6), inset 0 0 0 1px rgba(0,0,0,.5), inset 0 0 30px rgba(0,0,0,.5);
}

.locker {
  position: relative; width: var(--c); aspect-ratio: 900 / 1168;
  padding: 0; border: 0; background: none; cursor: pointer;
  perspective: calc(var(--c) * 5);
  animation: dealIn .5s cubic-bezier(.2,.9,.3,1.2) both;
}
/* hollow recess behind the door */
.locker .hollow {
  position: absolute; inset: 0; border-radius: calc(var(--c) * .03);
  background: #120b20;
  box-shadow: inset 0 0 calc(var(--c) * .2) rgba(0,0,0,.9), inset 0 0 0 1px rgba(200,154,90,.25);
}
.locker .front {
  position: absolute; inset: 0; width: 100%; height: 100%;
  transform-origin: 0% 50%; backface-visibility: hidden;
  filter: drop-shadow(0 3px 5px rgba(0,0,0,.55));
  transition: filter .4s ease, opacity .3s ease;
}
.locker .num {
  position: absolute; left: 0; right: 0; top: 29%;
  font-weight: 700; font-size: calc(var(--c) * .25); line-height: 1; letter-spacing: .02em;
  pointer-events: none; transition: opacity .25s;
}
/* open art (944 x 1130): the box (x 360-927, y 101-1057) fills the cell, the door swings out left */
.locker .open {
  position: absolute; width: 128.15%; height: auto; left: -25.84%; top: -10.57%;
  opacity: 0; pointer-events: none;
  filter: drop-shadow(-4px 6px 10px rgba(0,0,0,.6));
}
.locker .glow {
  position: absolute; left: 23%; right: 0; top: 0; bottom: 0;
  background: radial-gradient(ellipse at 50% 55%, rgba(255,240,190,.95) 0%, rgba(255,196,90,.6) 35%, rgba(255,170,60,0) 72%);
  mix-blend-mode: screen; opacity: 0; pointer-events: none;
}
.locker .prize {
  position: absolute; left: 25%; width: 73%; top: 30%; height: auto;
  opacity: 0; transform: translateY(20%) scale(.3); pointer-events: none;
  filter: drop-shadow(0 0 10px rgba(255,220,150,.9));
}

.board.picked .locker:not(.chosen) .front { filter: brightness(.45) saturate(.7); }
.board.picked .locker:not(.chosen) .num { opacity: .35; }
.board.picked .locker:not(.chosen) { cursor: default; }
.locker.chosen { z-index: 5; }
.locker.shake .front, .locker.shake .num { animation: shake .18s linear infinite; }
.locker.shake .front { filter: drop-shadow(0 0 12px rgba(255,210,130,.75)) brightness(1.15); }

.locker.opening .front { animation: doorSwing .7s cubic-bezier(.5,0,.3,1) forwards; }
.locker.opening .num   { opacity: 0; }
.locker.opening .open  { animation: fadeIn .35s ease .3s forwards; }
.locker.opening .glow  { animation: glowPulse 1.6s ease .45s forwards; }
.locker.win .prize     { animation: prizeUp .9s cubic-bezier(.2,1.3,.4,1) .7s forwards; }

/* full-screen flash */
.flash {
  position: fixed; inset: 0; pointer-events: none; z-index: 30;
  background: radial-gradient(circle at var(--fx) var(--fy), rgba(255,244,210,.95) 0%, rgba(255,200,110,.55) 18%, rgba(255,180,80,0) 55%);
  animation: flash 1s ease-out forwards;
}

#fx { position: fixed; inset: 0; width: 100%; height: 100%; pointer-events: none; z-index: 40; }

/* ---------- result ---------- */
.result {
  position: fixed; inset: 0; z-index: 50;
  display: flex; align-items: center; justify-content: center; padding: 16px;
  background: radial-gradient(ellipse at 50% 45%, rgba(40,24,64,.55), rgba(8,4,16,.88));
  animation: fadeIn .5s ease both;
}
.result-card {
  width: min(100%, 400px); max-height: 100%; overflow: auto;
  padding: calc(var(--vh) * 3) 22px calc(var(--vh) * 3.5);
  text-align: center; border-radius: 22px;
  background: linear-gradient(180deg, rgba(36,24,58,.96), rgba(18,11,32,.97));
  border: 1px solid rgba(200,154,90,.6);
  box-shadow: 0 0 0 6px rgba(200,154,90,.08), 0 30px 80px rgba(0,0,0,.7), 0 0 60px rgba(255,190,100,.18);
  animation: cardUp .6s cubic-bezier(.2,1.2,.4,1) both;
}
.gift-halo { position: relative; width: min(56vw, calc(var(--vh) * 26), 240px); aspect-ratio: 1; margin: 4px auto 6px; display: grid; place-items: center; }
.gift-halo::before {
  content: ''; position: absolute; inset: -12%;
  background: repeating-conic-gradient(from 0deg, rgba(255,214,140,.22) 0 10deg, rgba(255,214,140,0) 10deg 24deg);
  -webkit-mask: radial-gradient(circle, #000 20%, transparent 70%); mask: radial-gradient(circle, #000 20%, transparent 70%);
  animation: spin 14s linear infinite;
}
.gift-halo::after { content: ''; position: absolute; inset: 12%; border-radius: 50%; background: radial-gradient(circle, rgba(255,220,150,.45), rgba(255,220,150,0) 70%); }
.gift-halo img { position: relative; z-index: 1; width: 82%; height: 82%; object-fit: contain; filter: drop-shadow(0 8px 18px rgba(0,0,0,.5)); animation: floaty 3s ease-in-out infinite; }

/* ---------- toast ---------- */
.toast {
  position: fixed; left: 50%; bottom: max(env(safe-area-inset-bottom), 24px); transform: translateX(-50%);
  z-index: 60; max-width: calc(100% - 32px); padding: 12px 18px; border-radius: 12px;
  background: rgba(20,12,34,.95); border: 1px solid rgba(200,154,90,.6); color: var(--light);
  font-size: 15px; text-align: center; animation: fadeIn .3s ease both;
}

/* ---------- keyframes ---------- */
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
@keyframes pulse { 0%,100% { transform: scale(1); } 50% { transform: scale(1.05); } }
@keyframes nudge { 0%,100% { transform: translateX(0); } 25% { transform: translateX(-6px); } 75% { transform: translateX(6px); } }
@keyframes dealIn { from { opacity: 0; transform: translateY(14px) scale(.92); } to { opacity: 1; transform: none; } }
@keyframes shake {
  0% { transform: translate(0,0) rotate(0); } 25% { transform: translate(-2px,1px) rotate(-1.2deg); }
  50% { transform: translate(2px,-1px) rotate(1deg); } 75% { transform: translate(-1px,-1px) rotate(-.6deg); } 100% { transform: translate(0,0) rotate(0); }
}
@keyframes doorSwing { 0% { transform: rotateY(0); opacity: 1; } 60% { opacity: 1; } 100% { transform: rotateY(-105deg); opacity: 0; } }
@keyframes glowPulse { 0% { opacity: 0; } 25% { opacity: 1; } 100% { opacity: .55; } }
@keyframes prizeUp { 0% { opacity: 0; transform: translateY(20%) scale(.3); } 100% { opacity: 1; transform: translateY(0) scale(1); } }
@keyframes flash { 0% { opacity: 0; } 15% { opacity: 1; } 100% { opacity: 0; } }
@keyframes cardUp { from { opacity: 0; transform: translateY(40px) scale(.9); } to { opacity: 1; transform: none; } }
@keyframes spin { to { transform: rotate(360deg); } }
@keyframes floaty { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-6px); } }

@media (prefers-reduced-motion: reduce) {
  #btn-start, .gift-halo::before, .gift-halo img { animation: none; }
}