:root {
  --bg: #0f1116;
  --panel: #171a22;
  --line: #2a2f3b;
  --text: #e7e9ee;
  --muted: #8e95a5;
  --accent: #d6453d;
  --ok: #3fae74;
  color-scheme: dark;
  font: 15px/1.5 system-ui, sans-serif;
}
* { box-sizing: border-box; }
[hidden] { display: none !important; }
body { margin: 0; background: var(--bg); color: var(--text); }
h1, h2, h3 { margin: 0 0 0.4em; font-weight: 600; }
h1 { font-size: 1.3rem; }
h2 { font-size: 1.1rem; }
button { font: inherit; background: var(--accent); color: white; border: 0; border-radius: 6px; padding: 0.5em 1em; cursor: pointer; }
button.ghost { background: transparent; border: 1px solid var(--line); color: var(--text); }
button:disabled { opacity: 0.4; cursor: default; }
input { font: inherit; background: #0b0d12; color: var(--text); border: 1px solid var(--line); border-radius: 6px; padding: 0.5em; width: 100%; }
label { display: grid; gap: 0.3em; margin-bottom: 0.8em; color: var(--muted); }
img, video { max-width: 100%; border-radius: 6px; display: block; }
audio { width: 100%; }
.muted { color: var(--muted); }
.kicker { text-transform: uppercase; letter-spacing: 0.08em; font-size: 0.75rem; color: var(--accent); margin: 0; }
.row { display: flex; gap: 0.5em; align-items: center; flex-wrap: wrap; }
.card { background: var(--panel); border: 1px solid var(--line); border-radius: 10px; padding: 1.2em; }
.login { max-width: 380px; margin: 12vh auto; }
.error { position: fixed; bottom: 1em; left: 50%; transform: translateX(-50%); background: #4a1d1d; padding: 0.6em 1em; border-radius: 6px; }

header { display: grid; grid-template-columns: 1fr auto auto; gap: 1em; align-items: center; padding: 0.8em 1.2em; border-bottom: 1px solid var(--line); }
nav { display: flex; gap: 0.3em; }
nav button { background: transparent; color: var(--muted); }
nav button.active { color: var(--text); background: var(--panel); }
.badge { background: var(--accent); color: white; border-radius: 99px; padding: 0 0.5em; font-size: 0.75rem; }
main { padding: 1.2em; max-width: 1000px; margin: 0 auto; }
.tab { display: grid; gap: 1em; }

.objective.done { opacity: 0.55; }
.objective .status { font-size: 0.8rem; color: var(--muted); }
.hints { list-style: none; padding: 0; display: grid; gap: 0.4em; }
.hints li { border-left: 2px solid var(--line); padding-left: 0.6em; }

.contacts { display: grid; grid-template-columns: 220px 1fr; gap: 1em; }
.contact { text-align: left; background: var(--panel); border: 1px solid var(--line); color: var(--text); }
.contact.active { border-color: var(--accent); }
.thread { display: grid; gap: 0.6em; max-height: 50vh; overflow: auto; }
.bubble { padding: 0.6em 0.8em; border-radius: 8px; background: #20242f; max-width: 85%; }
.bubble.me { justify-self: end; background: #3a2321; }

.files { display: grid; grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); gap: 0.8em; }
.file { text-align: left; background: var(--panel); border: 1px solid var(--line); color: var(--text); }
.file.unread { border-color: var(--accent); }

.overlay { position: fixed; inset: 0; background: rgb(0 0 0 / 0.7); display: grid; place-items: center; padding: 1em; z-index: 10; }
.overlay[hidden] { display: none; }
.modal { width: min(720px, 100%); max-height: 92vh; overflow: auto; display: grid; gap: 0.8em; }
.chat { display: grid; gap: 0.5em; }
.chat p { margin: 0; animation: in 0.3s ease-out; }
.chat strong { color: var(--accent); }
@keyframes in { from { opacity: 0; transform: translateY(4px); } }

.scene { position: relative; }
.spot { position: absolute; transform: translate(-50%, -50%); width: 2.2em; height: 2.2em; border-radius: 50%; padding: 0; background: rgb(214 69 61 / 0.85); }
.spot.found { background: var(--ok); }
.keypad { display: grid; grid-template-columns: repeat(3, 4em); gap: 0.5em; justify-content: center; }
.keypad button { height: 3.2em; font-size: 1.2rem; background: #262b36; }
.display { font: 1.6rem ui-monospace, monospace; text-align: center; letter-spacing: 0.4em; }

.tracks { display: flex; gap: 0.4em; }
.tracks button.active { outline: 2px solid var(--text); }
.clue { background: #262b36; }
.clue.found { background: var(--ok); }
.lock { display: grid; place-items: center; gap: 0.6em; }
.lock svg { width: 220px; height: 220px; touch-action: none; }

#toasts { position: fixed; right: 1em; bottom: 1em; list-style: none; display: grid; gap: 0.5em; max-width: 360px; padding: 0; margin: 0; z-index: 20; }
#toasts li { background: var(--panel); border: 1px solid var(--line); border-radius: 8px; padding: 0.6em 0.8em; animation: in 0.3s; }
#toasts li.ko { border-color: var(--accent); }
#toasts li.ok { border-color: var(--ok); }

@media (max-width: 720px) {
  header { grid-template-columns: 1fr; }
  .contacts { grid-template-columns: 1fr; }
}

a.button { display: inline-block; text-decoration: none; border-radius: 6px; padding: 0.5em 1em; }
a.button.ghost { border: 1px solid var(--line); color: var(--text); }