:root {
  --bg-1: #0a0f24;
  --bg-2: #141c45;
  --text: #f4f6ff;
  --muted: #aeb6d8;
  --glass: rgb(255 255 255 / 0.07);
  --glass-border: rgb(255 255 255 / 0.14);
  --red: #ff4d6d;
  --red-2: #ff7a90;
  --gold: #ffd166;
  --mint: #4fe3c1;
  --violet: #8b7bff;
  --radius: 24px;
  --shadow: 0 30px 80px -20px rgb(0 0 0 / 0.6);
  --font: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  color-scheme: dark;
}

* { box-sizing: border-box; }

html, body { margin: 0; min-height: 100%; }

body {
  font-family: var(--font);
  color: var(--text);
  background: radial-gradient(120% 80% at 50% 0%, var(--bg-2), var(--bg-1) 70%) fixed, var(--bg-1);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* ---------- Hintergrund ---------- */

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

.aurora { position: fixed; inset: 0; z-index: 0; pointer-events: none; overflow: hidden; filter: blur(70px); opacity: 0.55; }
.aurora span { position: absolute; border-radius: 50%; animation: drift 22s ease-in-out infinite alternate; }
.aurora span:nth-child(1) { width: 55vmax; height: 55vmax; background: #3b2bbf; top: -25vmax; left: -15vmax; }
.aurora span:nth-child(2) { width: 45vmax; height: 45vmax; background: #0f7a6a; top: -10vmax; right: -20vmax; animation-delay: -7s; }
.aurora span:nth-child(3) { width: 40vmax; height: 40vmax; background: #7a1838; bottom: -25vmax; left: 20vmax; animation-delay: -14s; }

@keyframes drift {
  to { transform: translate(6vmax, 4vmax) scale(1.12); }
}

/* ---------- Layout ---------- */

main { position: relative; z-index: 1; }

.view {
  display: none;
  min-height: 100dvh;
  padding: max(32px, env(safe-area-inset-top)) 16px max(32px, env(safe-area-inset-bottom));
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 32px;
}
.view.is-active { display: flex; animation: view-in 0.6s cubic-bezier(0.2, 0.8, 0.2, 1); }

@keyframes view-in {
  from { opacity: 0; transform: translateY(16px); }
}

.hero { text-align: center; max-width: 640px; }

h1 {
  margin: 0;
  font-size: clamp(2.2rem, 7vw, 3.6rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.05;
}

.accent {
  background: linear-gradient(100deg, var(--gold), var(--red-2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.eyebrow {
  margin: 0 0 12px;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--mint);
}

.lead { margin: 16px 0 0; font-size: 1.1rem; line-height: 1.55; color: var(--muted); }
.lead strong { color: var(--text); }

/* ---------- Karten und Formulare ---------- */

.card {
  width: min(100%, 420px);
  padding: 36px 28px;
  border-radius: var(--radius);
  background: var(--glass);
  border: 1px solid var(--glass-border);
  box-shadow: var(--shadow), inset 0 1px 0 rgb(255 255 255 / 0.08);
  -webkit-backdrop-filter: blur(20px) saturate(140%);
  backdrop-filter: blur(20px) saturate(140%);
}

.login { text-align: center; }
.login .lead { margin-bottom: 28px; }

.emblem {
  width: 64px;
  height: 64px;
  margin: 0 auto 20px;
  display: grid;
  place-items: center;
  border-radius: 20px;
  background: linear-gradient(135deg, var(--red), var(--violet));
  box-shadow: 0 12px 40px -8px rgb(255 77 109 / 0.6);
}
.emblem svg { width: 30px; fill: #fff; }

form { display: grid; gap: 16px; text-align: left; }

.field { display: grid; gap: 8px; }
.field span { font-size: 0.85rem; font-weight: 600; color: var(--muted); }
.field input {
  width: 100%;
  padding: 14px 16px;
  font: inherit;
  font-size: 1.05rem;
  color: var(--text);
  background: rgb(0 0 0 / 0.25);
  border: 1px solid var(--glass-border);
  border-radius: 14px;
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
}
.field input:focus { border-color: var(--gold); box-shadow: 0 0 0 4px rgb(255 209 102 / 0.18); }

.btn {
  appearance: none;
  border: 0;
  cursor: pointer;
  font: inherit;
  font-weight: 700;
  font-size: 1.05rem;
  padding: 15px 22px;
  border-radius: 14px;
  color: var(--text);
  transition: transform 0.15s, box-shadow 0.2s, background 0.2s, opacity 0.2s;
}
.btn:active { transform: scale(0.98); }
.btn:disabled { opacity: 0.6; cursor: progress; }
.btn-primary {
  margin-top: 8px;
  background: linear-gradient(135deg, var(--red), #e8365a);
  box-shadow: 0 12px 30px -10px rgb(255 77 109 / 0.8);
}
.btn-primary:hover { box-shadow: 0 16px 36px -10px rgb(255 77 109 / 0.95); }
.btn-ghost { background: rgb(255 255 255 / 0.08); border: 1px solid var(--glass-border); }
.btn-ghost:hover { background: rgb(255 255 255 / 0.14); }

.btn:focus-visible, .gift:focus-visible, .play:focus-visible, .logout:focus-visible {
  outline: 3px solid var(--gold);
  outline-offset: 3px;
}

.error {
  margin: 0;
  padding: 12px 14px;
  border-radius: 12px;
  background: rgb(255 77 109 / 0.14);
  border: 1px solid rgb(255 77 109 / 0.4);
  color: #ffd0d8;
  font-size: 0.95rem;
}
.error[hidden] { display: none; }

.logout {
  position: fixed;
  top: max(16px, env(safe-area-inset-top));
  right: 16px;
  z-index: 5;
  padding: 8px 14px;
  font: inherit;
  font-size: 0.85rem;
  color: var(--muted);
  background: rgb(255 255 255 / 0.06);
  border: 1px solid var(--glass-border);
  border-radius: 999px;
  cursor: pointer;
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
}
.logout:hover { color: var(--text); }

/* ---------- Geschenke ---------- */

.gifts {
  display: grid;
  grid-template-columns: repeat(var(--cols, 3), minmax(0, 1fr));
  gap: clamp(12px, 4vw, 32px);
  width: min(100%, 640px);
}

.gift {
  --gift: var(--red);
  position: relative;
  aspect-ratio: 1;
  padding: 0;
  border: 0;
  background: none;
  cursor: pointer;
  border-radius: 20px;
  animation: float 4.5s ease-in-out infinite;
  animation-delay: calc(var(--i, 0) * -0.9s);
  -webkit-tap-highlight-color: transparent;
}
.gift svg { width: 100%; height: 100%; overflow: visible; filter: drop-shadow(0 18px 24px rgb(0 0 0 / 0.45)); transition: transform 0.25s; }
.gift:hover svg, .gift:focus-visible svg { transform: translateY(-6px) scale(1.06) rotate(-2deg); }

.gift .box { fill: var(--gift); }
.gift .box-shade { fill: rgb(0 0 0 / 0.18); }
.gift .lid { fill: var(--gift); }
.gift .lid-shine { fill: rgb(255 255 255 / 0.22); }
.gift .ribbon, .gift .bow { fill: var(--gold); }
.gift .bow-knot { fill: #f2b84b; }
.gift .gift-lid { transform-box: fill-box; transform-origin: 50% 100%; }

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

.gifts.is-busy .gift { cursor: default; }
.gifts.is-busy .gift:not(.is-picked) { animation: none; opacity: 0; transform: scale(0.7); transition: opacity 0.5s, transform 0.5s; }

/* Das gewählte Geschenk wandert in die Mitte (--tx/--ty setzt app.js) und wackelt dort. */
.gift.is-picked {
  z-index: 2;
  animation: none;
  transform: translate(var(--tx, 0), var(--ty, 0)) scale(1.3);
  transition: transform 0.6s cubic-bezier(0.2, 0.8, 0.2, 1);
}
.gift.is-picked svg { animation: shake 0.6s ease-in-out 0.4s 2; }
.gift.is-open .gift-lid { animation: lid-off 0.8s cubic-bezier(0.3, 1.4, 0.5, 1) forwards; }
.gift.is-open::after {
  content: "";
  position: absolute;
  inset: -40%;
  border-radius: 50%;
  background: radial-gradient(circle, rgb(255 230 160 / 0.95), rgb(255 209 102 / 0.35) 35%, transparent 65%);
  animation: glow 1s ease-out forwards;
  pointer-events: none;
}

@keyframes shake {
  0%, 100% { transform: rotate(0); }
  20% { transform: rotate(-8deg); }
  40% { transform: rotate(7deg); }
  60% { transform: rotate(-5deg); }
  80% { transform: rotate(3deg); }
}
@keyframes lid-off {
  to { transform: translate(18%, -120%) rotate(28deg); opacity: 0; }
}
@keyframes glow {
  from { opacity: 0; transform: scale(0.3); }
  40% { opacity: 1; }
  to { opacity: 0; transform: scale(1.4); }
}

/* ---------- Enthüllung ---------- */

.stage { width: min(100%, 760px); display: grid; gap: 24px; justify-items: center; }

.video-frame {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  border-radius: var(--radius);
  overflow: hidden;
  background: #000;
  border: 1px solid var(--glass-border);
  box-shadow: var(--shadow), 0 0 80px -20px rgb(139 123 255 / 0.5);
}
.video-frame.has-video { aspect-ratio: auto; }
.video-frame video { display: block; width: 100%; height: 100%; max-height: 72dvh; object-fit: contain; background: #000; }

.play {
  position: absolute;
  inset: 0;
  display: grid;
  place-content: center;
  justify-items: center;
  gap: 16px;
  border: 0;
  cursor: pointer;
  color: var(--text);
  font: inherit;
  /* Deckend – sonst verrät das erste Videobild schon den Partner. */
  background: radial-gradient(circle at 50% 45%, #2b2668, #0a0f24 70%);
}
.play[hidden] { display: none; }
.play-icon {
  width: 84px;
  height: 84px;
  padding: 22px 18px 22px 26px;
  border-radius: 50%;
  fill: #fff;
  background: linear-gradient(135deg, var(--red), var(--violet));
  box-shadow: 0 16px 50px -10px rgb(255 77 109 / 0.8);
  transition: transform 0.2s;
}
.play:hover .play-icon { transform: scale(1.08); }
.play-ring {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 84px;
  height: 84px;
  margin: -62px 0 0 -42px;
  border-radius: 50%;
  border: 2px solid rgb(255 255 255 / 0.5);
  animation: ring 2s ease-out infinite;
}
.play-label { font-size: 1.1rem; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; }

@keyframes ring {
  from { transform: scale(1); opacity: 0.9; }
  to { transform: scale(2.2); opacity: 0; }
}

.result { text-align: center; animation: view-in 0.6s cubic-bezier(0.2, 0.8, 0.2, 1); }
.result[hidden] { display: none; }
.result .eyebrow { margin-bottom: 4px; }
.receiver {
  margin: 0 0 24px;
  font-size: clamp(2.4rem, 9vw, 3.4rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  background: linear-gradient(100deg, var(--gold), var(--red-2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.note { margin: -12px 0 20px; color: var(--muted); font-size: 0.95rem; }
.note[hidden] { display: none; }

/* ---------- Konfetti ---------- */

.burst { position: fixed; inset: 0; pointer-events: none; z-index: 4; overflow: hidden; }
.burst i {
  position: absolute;
  top: var(--y, 50%);
  left: var(--x, 50%);
  width: 10px;
  height: 14px;
  border-radius: 3px;
  background: var(--c);
  animation: confetti 1.6s cubic-bezier(0.1, 0.8, 0.3, 1) forwards;
}
@keyframes confetti {
  to { transform: translate(var(--dx), var(--dy)) rotate(var(--r)); opacity: 0; }
}

/* ---------- Laden ---------- */

.spinner {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 3px solid rgb(255 255 255 / 0.15);
  border-top-color: var(--gold);
  animation: spin 0.9s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ---------- Bewegung reduzieren ---------- */

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; }
  .aurora span { animation: none; }
}