/* ==========================================
   TREN DE PALABRAS — estilo cyberpunk / gamer
   ========================================== */

@import url('https://fonts.googleapis.com/css2?family=Orbitron:wght@400;700;900&family=Rajdhani:wght@400;500;600;700&family=Press+Start+2P&family=Share+Tech+Mono&display=swap');

:root {
  --bg:        #06060f;
  --bg2:       #0d0d1f;
  --bg3:       #12122a;
  --panel:     #0a0a1e;
  --border:    #1e1e42;
  --cyan:      #00f5ff;
  --cyan-d:    rgba(0,245,255,0.12);
  --cyan-glow: 0 0 12px rgba(0,245,255,0.6);
  --purple:    #bf00ff;
  --green:     #00ff88;
  --yellow:    #ffe600;
  --red:       #ff2d55;
  --text:      #d0e4ff;
  --text-muted:#5a6a8a;
  --font-hud:  'Orbitron', monospace;
  --font-pixel:'Press Start 2P', monospace;
  --font-ui:   'Rajdhani', sans-serif;
  --font-code: 'Share Tech Mono', monospace;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-ui);
  min-height: 100vh;
  overflow-x: hidden;
  position: relative;
}

.scanlines {
  pointer-events: none; position: fixed; inset: 0; z-index: 999;
  background: repeating-linear-gradient(0deg, transparent, transparent 2px, rgba(0,0,0,0.18) 2px, rgba(0,0,0,0.18) 4px);
}
.grid-bg {
  pointer-events: none; position: fixed; inset: 0; z-index: 0;
  background-image:
    linear-gradient(rgba(0,245,255,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,245,255,0.04) 1px, transparent 1px);
  background-size: 40px 40px;
}

/* ── HEADER ── */
header {
  position: relative; z-index: 10;
  padding: 18px 32px;
  background: linear-gradient(90deg, #06060f 0%, #0d0d2a 50%, #06060f 100%);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 1px 0 rgba(0,245,255,0.1), 0 4px 24px rgba(0,0,0,0.6);
}
.header-inner {
  display: flex; align-items: center; gap: 24px; flex-wrap: wrap;
  max-width: 1100px; margin: 0 auto;
}
.back-home {
  display: inline-flex; align-items: center;
  font-family: var(--font-hud); font-size: 10px; line-height: 1;
  letter-spacing: 2px; color: var(--cyan);
  border: 1px solid rgba(0,245,255,0.3); padding: 7px 12px;
  transition: all 0.2s; white-space: nowrap;
}
.back-home:hover { background: var(--cyan-d); box-shadow: var(--cyan-glow); }
.header-logo {
  display: flex; align-items: center; gap: 2px;
  font-family: var(--font-hud); font-size: 20px; font-weight: 900; letter-spacing: 3px;
}
.logo-bracket { color: var(--cyan); opacity: 0.6; }
.logo-text { color: var(--text); letter-spacing: 3px; }
.logo-accent { color: var(--cyan); text-shadow: var(--cyan-glow); }
.subtitle {
  color: var(--text-muted); font-family: var(--font-code);
  font-size: 12px; letter-spacing: 1px; flex: 1;
}
.header-hud { display: flex; gap: 10px; margin-left: auto; align-items: center; }
.hud-tag {
  display: inline-flex; align-items: center; gap: 7px;
  font-family: var(--font-code); font-size: 10px; line-height: 1;
  color: var(--green); border: 1px solid rgba(0,255,136,0.3);
  padding: 7px 12px; letter-spacing: 2px; background: rgba(0,255,136,0.05);
}
.hud-dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--green); box-shadow: 0 0 6px var(--green);
  animation: hud-dot-blink 1.6s ease-in-out infinite;
}
@keyframes hud-dot-blink { 0%,100%{opacity:1} 50%{opacity:0.25} }

/* ── MAIN ── */
main {
  position: relative; z-index: 5;
  max-width: 1100px; margin: 0 auto; padding: 24px 32px;
}

/* ── PANEL FRAME ── */
.panel-frame {
  position: relative;
  background: var(--panel);
  border: 1px solid var(--border);
  padding: 28px 24px 24px;
}
.panel-frame::before, .panel-frame::after {
  content: ''; position: absolute; width: 14px; height: 14px;
  border-color: var(--cyan); border-style: solid; opacity: 0.7;
}
.panel-frame::before { top: -1px; left: -1px; border-width: 2px 0 0 2px; }
.panel-frame::after  { bottom: -1px; right: -1px; border-width: 0 2px 2px 0; }
.panel-label {
  font-family: var(--font-hud); font-size: 9px; letter-spacing: 4px;
  color: var(--cyan); text-shadow: var(--cyan-glow); opacity: 0.7;
  position: absolute; top: -9px; left: 20px;
  background: var(--panel); padding: 0 8px;
}

/* ── SETUP SCREEN ── */
.setup-title {
  font-family: var(--font-hud); font-size: clamp(24px, 4vw, 38px);
  font-weight: 900; letter-spacing: 2px; color: white;
  text-align: center; margin-bottom: 16px;
}
.setup-desc {
  font-size: 16px; line-height: 1.6; color: var(--text-muted);
  text-align: center; max-width: 540px; margin: 0 auto 28px;
}
.setup-desc strong { color: var(--cyan); }
.setup-desc u { color: var(--yellow); text-decoration: none; }
.setup-desc em { color: var(--text); font-style: normal; font-family: var(--font-code); }
.player-count-box {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  margin: 0 auto 22px;
}
.player-count-label {
  font-family: var(--font-code);
  font-size: 10px;
  letter-spacing: 2px;
  color: var(--text-muted);
}
.player-count-options {
  display: grid;
  grid-template-columns: repeat(3, 54px);
  gap: 8px;
}
.player-count-btn {
  height: 44px;
  border: 1px solid rgba(0,245,255,0.3);
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-hud);
  font-size: 16px;
  cursor: pointer;
}
.player-count-btn.active {
  color: var(--cyan);
  border-color: var(--cyan);
  box-shadow: var(--cyan-glow);
}
.setup-modes {
  display: flex; flex-direction: column; gap: 12px;
  max-width: 320px; margin: 0 auto;
}
.setup-modes .btn-gamer { width: 100%; padding: 16px; font-size: 14px; }

/* ── ONLINE BOX ── */
.online-box { margin-top: 24px; border-top: 1px solid var(--border); padding-top: 24px; }
.online-stage {
  display: flex; flex-direction: column; align-items: center; gap: 16px;
}
.online-title {
  font-family: var(--font-code); font-size: 11px;
  letter-spacing: 2px; color: var(--cyan); text-align: center;
}
.online-actions {
  display: flex; flex-direction: column; gap: 12px;
  width: 100%; max-width: 280px;
}
.online-actions .btn-gamer { width: 100%; padding: 14px; }
.online-stage input[type="text"] {
  width: 100%; max-width: 280px;
  background: var(--bg); color: var(--text);
  border: 1px solid var(--border); padding: 12px 14px;
  font-family: var(--font-code); font-size: 18px;
  letter-spacing: 3px; text-align: center; text-transform: uppercase;
  outline: none;
}
.online-stage input[type="text"]:focus {
  border-color: var(--cyan); box-shadow: 0 0 8px rgba(0,245,255,0.2);
}
.online-row {
  display: flex; gap: 8px; align-items: center;
  width: 100%; max-width: 360px;
}
.online-row input[type="text"] {
  flex: 1; min-width: 0; font-size: 12px; letter-spacing: 0;
  text-align: left; text-transform: none;
}
.online-code-display {
  display: flex; align-items: center; gap: 14px;
  padding: 16px 20px; background: var(--bg);
  border: 1px solid var(--green); box-shadow: 0 0 16px rgba(0,255,136,0.2);
}
.online-code-display #online-code {
  font-family: var(--font-pixel); font-size: 24px; letter-spacing: 4px;
  color: var(--green); text-shadow: 0 0 12px rgba(0,255,136,0.6);
}
.online-status {
  font-family: var(--font-code); font-size: 12px; color: var(--yellow);
  letter-spacing: 1px; animation: hud-dot-blink 1.6s step-end infinite;
}
.online-msg {
  min-height: 16px; font-family: var(--font-code);
  font-size: 12px; color: var(--red);
}

/* ── BOTONES ── */
.btn-gamer {
  font-family: var(--font-hud); font-size: 11px; font-weight: 700;
  letter-spacing: 2px; padding: 9px 18px; border: 1px solid;
  cursor: pointer; text-transform: uppercase;
  transition: all 0.15s; position: relative; overflow: hidden;
}
.btn-gamer:active { transform: translateY(1px); }
.btn-primary {
  background: rgba(0,245,255,0.1); color: var(--cyan); border-color: var(--cyan);
  box-shadow: 0 0 12px rgba(0,245,255,0.2);
}
.btn-primary:hover { background: rgba(0,245,255,0.18); box-shadow: 0 0 20px rgba(0,245,255,0.4); }
.btn-secondary {
  background: rgba(191,0,255,0.1); color: var(--purple); border-color: var(--purple);
}
.btn-secondary:hover { background: rgba(191,0,255,0.2); }
.btn-danger {
  background: rgba(255,45,85,0.1); color: var(--red); border-color: var(--red);
}
.btn-danger:hover { background: rgba(255,45,85,0.2); }
.btn-xs { padding: 5px 11px; font-size: 9px; }

/* ── GAME SCREEN ── */
.train-header {
  display: flex; align-items: center; gap: 16px; flex-wrap: wrap;
  margin-bottom: 18px;
}
.train-counter {
  display: flex; flex-direction: column; align-items: center;
  padding: 8px 18px; background: var(--bg);
  border: 1px solid var(--cyan); box-shadow: 0 0 16px rgba(0,245,255,0.2);
}
.train-counter-num {
  font-family: var(--font-pixel); font-size: 24px; color: var(--cyan);
  text-shadow: var(--cyan-glow); line-height: 1.2;
}
.train-counter-label {
  font-family: var(--font-code); font-size: 8px; letter-spacing: 3px;
  color: var(--text-muted);
}
.train-mode-tag {
  font-family: var(--font-hud); font-size: 10px; letter-spacing: 2px;
  color: var(--purple); border: 1px solid rgba(191,0,255,0.4);
  padding: 6px 12px; background: rgba(191,0,255,0.08);
}
.train-header .btn-danger { margin-left: auto; }

/* ── EL TREN (track con scroll) ── */
.train-track {
  display: flex; align-items: stretch; gap: 4px;
  padding: 20px 16px; margin-bottom: 20px;
  background: var(--bg);
  border: 1px solid var(--border);
  overflow-x: auto;
  min-height: 110px;
  scroll-behavior: smooth;
}
.train-track::-webkit-scrollbar { height: 8px; }
.train-track::-webkit-scrollbar-track { background: var(--bg2); }
.train-track::-webkit-scrollbar-thumb { background: var(--cyan); opacity: 0.4; }
.train-loco {
  font-size: 48px; line-height: 70px;
  flex-shrink: 0; align-self: center;
  filter: drop-shadow(0 0 8px rgba(0,245,255,0.5));
}
.train-cars {
  display: flex; align-items: center; gap: 4px;
}
.train-car {
  flex-shrink: 0;
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  min-width: 92px; padding: 12px 14px;
  background: var(--bg2);
  border: 1px solid var(--cyan);
  position: relative;
  animation: car-in 0.4s cubic-bezier(.34,1.56,.64,1);
}
@keyframes car-in {
  from { transform: scale(0.5) translateY(20px); opacity: 0; }
  to   { transform: scale(1) translateY(0); opacity: 1; }
}
.train-car::before {
  /* enganche entre vagones */
  content: '';
  position: absolute; left: -5px; top: 50%;
  width: 5px; height: 3px;
  background: var(--cyan); transform: translateY(-50%);
}
.train-car:nth-child(even) { border-color: var(--purple); }
.train-car:nth-child(even)::before { background: var(--purple); }
.train-car:nth-child(3n) { border-color: var(--green); }
.train-car:nth-child(3n)::before { background: var(--green); }
.train-car-word {
  font-family: var(--font-ui); font-size: 16px; font-weight: 700;
  color: var(--text); letter-spacing: 0.5px;
}
.train-car-word .syl-end {
  color: var(--yellow); text-shadow: 0 0 6px rgba(255,230,0,0.5);
}
.train-car-num {
  font-family: var(--font-code); font-size: 8px;
  color: var(--text-muted); margin-top: 3px;
}
.train-car-who {
  font-family: var(--font-code); font-size: 8px;
  letter-spacing: 1px; margin-top: 1px;
}

/* ── TURNO + INPUT ── */
.turn-box {
  background: var(--bg); border: 1px solid var(--border);
  padding: 18px; margin-bottom: 20px;
}
.turn-label {
  font-family: var(--font-hud); font-size: 14px; letter-spacing: 1px;
  color: var(--yellow); text-align: center; margin-bottom: 6px;
}
.syllable-hint {
  font-family: var(--font-code); font-size: 13px;
  color: var(--text-muted); text-align: center; margin-bottom: 14px;
  min-height: 18px;
}
.syllable-hint strong {
  color: var(--cyan); font-size: 18px;
  text-shadow: var(--cyan-glow); letter-spacing: 1px;
}
.input-row { display: flex; gap: 8px; }
.input-row input {
  flex: 1; background: var(--bg2); color: var(--text);
  border: 1px solid var(--border); padding: 12px 14px;
  font-family: var(--font-ui); font-size: 18px; outline: none;
  transition: border-color 0.2s;
}
.input-row input:focus {
  border-color: var(--cyan); box-shadow: 0 0 8px rgba(0,245,255,0.2);
}
.input-row .btn-gamer { white-space: nowrap; }
.word-msg {
  min-height: 18px; margin-top: 8px; text-align: center;
  font-family: var(--font-code); font-size: 13px; color: var(--red);
}
.word-msg.ok { color: var(--green); }
.turn-finish {
  display: block;
  margin: 12px auto 0;
}

/* ── FIN DEL TREN ── */
.train-end {
  text-align: center; padding: 24px;
  background: var(--bg); border: 1px solid var(--yellow);
  box-shadow: 0 0 24px rgba(255,230,0,0.2); margin-bottom: 20px;
}
.train-end-emoji { font-size: 48px; margin-bottom: 10px; }
.train-end-text {
  font-family: var(--font-hud); font-size: 20px; font-weight: 900;
  color: var(--yellow); margin-bottom: 18px;
}

/* ── LISTA DE PALABRAS ── */
.words-log-label {
  font-family: var(--font-code); font-size: 10px; letter-spacing: 3px;
  color: var(--cyan); opacity: 0.7; margin-bottom: 8px;
}
.words-log {
  background: var(--bg); border: 1px solid var(--border);
  padding: 14px; font-family: var(--font-code); font-size: 14px;
  line-height: 1.9; color: var(--text);
  max-height: 220px; overflow-y: auto;
}
.words-log::-webkit-scrollbar { width: 8px; }
.words-log::-webkit-scrollbar-track { background: var(--bg2); }
.words-log::-webkit-scrollbar-thumb { background: var(--cyan); opacity: 0.4; }
.words-log .wl-num { color: var(--text-muted); }
.words-log .wl-syl { color: var(--yellow); }

/* ── RESPONSIVE ── */
@media (max-width: 600px) {
  header { padding: 14px 16px; }
  main { padding: 16px; }
  .panel-frame { padding: 24px 14px 16px; }
  .header-logo { font-size: 15px; }
  .subtitle { display: none; }
  .input-row { flex-direction: column; }
  .input-row .btn-gamer { width: 100%; }
}