/* ============ Centauros Phygital — Olimpiadas de IA de Inmov ============ */
@import url('https://fonts.googleapis.com/css2?family=Teko:wght@500;600;700&family=Rajdhani:wght@500;600;700&family=Inter:wght@400;500;600;700&display=swap');

* { margin: 0; padding: 0; box-sizing: border-box; }

:root {
  /* tokens del brand kit Centauros Phygital */
  --bg: #020316;             /* ink-950 */
  --panel: #071129;          /* navy-900 */
  --panel-2: #1D2C4A;        /* panel-700 */
  --navy-800: #10195F;
  --text: #F0F0F2;           /* white-100 */
  --muted: #9D9FB5;          /* silver-500 */
  --cyan: #16DBE4;
  --cyan-bright: #58F4FF;
  --violet: #6F29BA;
  --magenta: #C826FF;
  --accent: #16DBE4;
  --green: #2ecc71;
  --red: #e74c3c;
  --bronze: #C6831E;
  --silver: #C6C6DA;
  --gold: #EDC62E;
  --radius: 14px;
  --grad-brand: linear-gradient(90deg, #C826FF 0%, #6F29BA 45%, #16DBE4 100%);
  --font-display: 'Teko', 'Barlow Condensed', 'Arial Narrow', sans-serif;
  --font-ui: 'Rajdhani', 'Montserrat', Inter, system-ui, sans-serif;
  --chamfer: polygon(18px 0, calc(100% - 18px) 0, 100% 18px, 100% calc(100% - 18px), calc(100% - 18px) 100%, 18px 100%, 0 calc(100% - 18px), 0 18px);
  --chamfer-sm: polygon(10px 0, 100% 0, 100% calc(100% - 10px), calc(100% - 10px) 100%, 0 100%, 0 10px);
}

body {
  font-family: 'Inter', system-ui, sans-serif;
  background-color: var(--bg);
  background-image: url('brand/background-grid.svg');
  background-attachment: fixed;
  color: var(--text);
  min-height: 100vh;
}

.screen { display: none; min-height: 100vh; }
.screen.visible { display: flex; flex-direction: column; }

.center { align-items: center; justify-content: center; text-align: center; padding: 24px; }

h1 {
  font-family: var(--font-display);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .02em;
  font-size: 3rem;
  line-height: .95;
  margin-bottom: 8px;
  text-shadow: 0 0 18px rgba(111, 41, 186, .55);
}
.logo { font-size: 3.2rem; }
.brand-logo { width: min(340px, 80vw); margin-bottom: 18px; filter: drop-shadow(0 0 24px rgba(22, 219, 228, .3)); }
.brand-logo-sm { height: 44px; }
.subtitle {
  font-family: var(--font-ui);
  font-weight: 700;
  color: var(--cyan);
  letter-spacing: .04em;
  text-transform: uppercase;
  margin-bottom: 28px;
}

.card {
  position: relative;
  background: linear-gradient(180deg, rgba(15,25,55,.94), rgba(4,8,25,.96));
  clip-path: var(--chamfer);
  border: 1px solid rgba(88,244,255,.55);
  box-shadow: inset 0 0 0 1px rgba(111,41,186,.24), 0 0 22px rgba(22,219,228,.12);
  padding: 28px;
  width: 100%;
  max-width: 440px;
}

input[type=email], input[type=text], input[type=password], input[type=number], textarea, select {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid rgba(88,244,255,.4);
  clip-path: var(--chamfer-sm);
  background: rgba(2,3,22,.85);
  color: var(--text);
  font-size: 1rem;
  font-family: 'Inter', sans-serif;
  margin-bottom: 12px;
}
input:focus, textarea:focus, select:focus { outline: none; border-color: var(--cyan-bright); box-shadow: 0 0 12px rgba(22,219,228,.35); }
textarea { resize: vertical; }

button {
  border: 1px solid var(--cyan);
  clip-path: var(--chamfer-sm);
  padding: 12px 20px;
  font-size: 1rem;
  font-family: var(--font-ui);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .04em;
  cursor: pointer;
  background: rgba(7,17,41,.88);
  color: #fff;
  box-shadow: 0 0 10px rgba(22,219,228,.35), inset 0 0 14px rgba(111,41,186,.12);
  transition: transform .08s ease, box-shadow .15s;
}
button:hover { background: linear-gradient(90deg, rgba(200,38,255,.18), rgba(22,219,228,.16)); box-shadow: 0 0 16px rgba(22,219,228,.7), 0 0 30px rgba(200,38,255,.25); }
button:active { transform: scale(.97); }
button:disabled { opacity: .4; cursor: not-allowed; box-shadow: none; }
button.secondary { border-color: rgba(157,159,181,.5); box-shadow: none; }
button.danger { border-color: var(--red); box-shadow: 0 0 10px rgba(231,76,60,.35); }
button.success { border-color: var(--green); box-shadow: 0 0 10px rgba(46,204,113,.4); }

.error-msg { color: #ff8a80; margin-top: 10px; min-height: 1.2em; font-size: .95rem; }

.badge {
  display: inline-flex;
  align-items: center;
  gap: .35rem;
  padding: 4px 14px;
  clip-path: var(--chamfer-sm);
  font-family: var(--font-ui);
  font-size: .85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: #020316;
}
.badge.bronce { background: linear-gradient(135deg, #685611 0%, #DC9A59 42%, #C6831E 68%, #3D220B 100%); color: #fff; }
.badge.plata  { background: linear-gradient(135deg, #5C5B6F 0%, #F0F0F2 44%, #9D9FB5 72%, #34384C 100%); color: #16182a; }
.badge.oro    { background: linear-gradient(135deg, #8D5A00 0%, #F5D58B 38%, #EDC62E 70%, #6B4200 100%); color: #241a00; }

.neon-rule { height: 2px; border: 0; background: var(--grad-brand); box-shadow: 0 0 10px rgba(22,219,228,.5); margin: 16px 0; }

/* ---------- pantalla del reto ---------- */
.challenge-layout {
  display: grid;
  grid-template-columns: minmax(320px, 440px) 1fr;
  gap: 0;
  height: 100vh;
}
@media (max-width: 900px) {
  .challenge-layout { grid-template-columns: 1fr; grid-template-rows: auto 1fr; height: auto; min-height: 100vh; }
}

.challenge-side {
  background: linear-gradient(180deg, rgba(7,17,41,.97), rgba(2,3,22,.98));
  border-right: 1px solid rgba(88,244,255,.35);
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  overflow-y: auto;
}
.challenge-side h2 {
  font-family: var(--font-display);
  font-size: 1.9rem;
  line-height: 1;
  text-transform: uppercase;
  letter-spacing: .015em;
}
.round-label {
  font-family: var(--font-ui);
  color: var(--cyan);
  font-weight: 700;
  letter-spacing: .14em;
  text-transform: uppercase;
  font-size: .85rem;
}

.timer {
  font-family: var(--font-display);
  font-size: 4.2rem;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  line-height: 1;
  text-align: center;
  padding: 14px 10px 8px;
  clip-path: var(--chamfer);
  background: rgba(2,3,22,.9);
  border: 1px solid rgba(88,244,255,.5);
  color: var(--cyan-bright);
  text-shadow: 0 0 14px rgba(22,219,228,.6);
}
.timer.warning { color: var(--gold); border-color: rgba(237,198,46,.6); text-shadow: 0 0 14px rgba(237,198,46,.6); }
.timer.critical { color: #ff5544; border-color: rgba(231,76,60,.7); text-shadow: 0 0 16px rgba(231,76,60,.8); animation: pulse 1s infinite; }
@keyframes pulse { 50% { opacity: .5; } }

.instructions {
  background: rgba(29,44,74,.55);
  border-left: 3px solid var(--cyan);
  padding: 16px;
  line-height: 1.55;
  white-space: pre-wrap;
  font-size: .95rem;
}

/* ---------- chat ---------- */
.chat-area { display: flex; flex-direction: column; height: 100vh; background: transparent; }
@media (max-width: 900px) { .chat-area { height: 70vh; } }

.chat-messages { flex: 1; overflow-y: auto; padding: 20px; display: flex; flex-direction: column; gap: 12px; }
.msg { max-width: 82%; padding: 12px 16px; line-height: 1.5; white-space: pre-wrap; word-wrap: break-word; clip-path: var(--chamfer-sm); }
.msg.user { align-self: flex-end; background: linear-gradient(135deg, rgba(111,41,186,.5), rgba(27,131,163,.45)); border: 1px solid rgba(180,98,230,.45); }
.msg.assistant { align-self: flex-start; background: rgba(7,17,41,.92); border: 1px solid rgba(88,244,255,.3); }
.msg.assistant.streaming::after { content: "▍"; animation: pulse 1s infinite; color: var(--cyan-bright); }

.chat-input {
  display: flex;
  gap: 10px;
  padding: 16px 20px;
  background: rgba(7,17,41,.92);
  border-top: 1px solid rgba(88,244,255,.35);
}
.chat-input textarea { flex: 1; margin: 0; min-height: 48px; max-height: 140px; }
.chat-input button { white-space: nowrap; }

/* ---------- resultado ---------- */
#flash-overlay {
  position: fixed; inset: 0; z-index: 1000;
  display: none;
  align-items: center; justify-content: center; flex-direction: column; gap: 16px;
  text-align: center; padding: 24px;
}
#flash-overlay.pass { display: flex; animation: flashGreen .5s 6 alternate; background: var(--green); }
#flash-overlay.fail { display: flex; animation: flashRed .4s 8 alternate; background: var(--red); }
@keyframes flashGreen { from { background: #0a5c2e; } to { background: #3ee888; } }
@keyframes flashRed   { from { background: #7a0f05; } to { background: #ff5544; } }
#flash-overlay .big { font-family: var(--font-display); font-size: 6rem; line-height: .9; font-weight: 700; text-transform: uppercase; color: #fff; text-shadow: 0 4px 24px rgba(0,0,0,.35); }
#flash-overlay .sub { font-family: var(--font-ui); font-weight: 600; font-size: 1.4rem; color: #fff; }

.champion-bg { background-image: radial-gradient(circle at 50% 30%, rgba(237,198,46,.28), transparent 65%), url('brand/background-grid.svg'); }
.trophy-img { width: 180px; animation: bounce 1.2s infinite; filter: drop-shadow(0 0 30px rgba(237,198,46,.55)); }
@keyframes bounce { 50% { transform: translateY(-14px); } }

.waiting-dots::after { content: ""; animation: dots 1.5s steps(4) infinite; }
@keyframes dots { 0% { content: ""; } 25% { content: "."; } 50% { content: ".."; } 75% { content: "..."; } }

.mascot { width: 130px; margin-bottom: 10px; filter: drop-shadow(0 0 18px rgba(22,219,228,.35)); }

/* ---------- admin ---------- */
.admin-wrap { max-width: 1200px; margin: 0 auto; padding: 24px; }
.admin-header { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 12px; margin-bottom: 20px; }
.admin-header h1 { font-size: 2.4rem; display: flex; align-items: center; gap: 14px; }
.tabs { display: flex; gap: 8px; margin-bottom: 20px; flex-wrap: wrap; }
.tabs button { background: rgba(7,17,41,.88); color: var(--muted); border-color: rgba(157,159,181,.35); box-shadow: none; }
.tabs button.active { color: #020316; background: var(--cyan); border-color: var(--cyan); box-shadow: 0 0 14px rgba(22,219,228,.5); }
.tab-content { display: none; }
.tab-content.visible { display: block; }

table { width: 100%; border-collapse: collapse; background: rgba(7,17,41,.9); overflow: hidden; }
th, td { padding: 10px 14px; text-align: left; border-bottom: 1px solid rgba(29,44,74,.9); font-size: .93rem; vertical-align: top; }
th { background: rgba(29,44,74,.8); color: var(--cyan); font-family: var(--font-ui); text-transform: uppercase; font-size: .75rem; letter-spacing: .08em; }
tr:last-child td { border-bottom: none; }

.status-pill { padding: 3px 10px; clip-path: var(--chamfer-sm); font-family: var(--font-ui); font-size: .75rem; font-weight: 700; text-transform: uppercase; }
.status-pill.active { background: rgba(46,204,113,.18); color: #7bedaa; }
.status-pill.eliminated { background: rgba(231,76,60,.2); color: #ff9d94; }
.status-pill.champion { background: rgba(237,198,46,.2); color: var(--gold); }
.status-pill.pass { background: rgba(46,204,113,.18); color: #7bedaa; }
.status-pill.fail { background: rgba(231,76,60,.2); color: #ff9d94; }
.status-pill.pending { background: rgba(29,44,74,.8); color: var(--muted); }

.row-actions { display: flex; gap: 6px; flex-wrap: wrap; }
.row-actions button { padding: 6px 12px; font-size: .82rem; }

.panel-box {
  position: relative;
  background: linear-gradient(180deg, rgba(15,25,55,.94), rgba(4,8,25,.96));
  clip-path: var(--chamfer);
  border: 1px solid rgba(88,244,255,.45);
  box-shadow: inset 0 0 0 1px rgba(111,41,186,.2);
  padding: 20px;
  margin-bottom: 20px;
}
.panel-box h3 { font-family: var(--font-display); font-size: 1.6rem; text-transform: uppercase; letter-spacing: .02em; margin-bottom: 14px; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
@media (max-width: 800px) { .grid-2 { grid-template-columns: 1fr; } }

details.transcript { margin-top: 6px; }
details.transcript pre {
  background: rgba(2,3,22,.9); padding: 10px; max-height: 300px;
  overflow: auto; white-space: pre-wrap; font-size: .82rem; margin-top: 6px;
  border: 1px solid rgba(29,44,74,.9);
}
.ai-verdict { font-size: .85rem; color: var(--muted); white-space: pre-wrap; }
.muted { color: var(--muted); }