/* ── Design Tokens ─────────────────────────────────────── */
:root {
  --bg: #F0F2F5;
  --card: #FFFFFF;
  --text: #1F2937;
  --muted: #374151; /* Contrast fix */
  --primary: #5B8C96;
  --primary-hover: #4A727C;
  --ring: #CBD5E1;
  --danger: #E07A5F;
  --success: #4CAF82;
  --highlight: #F2CC8F;
  --shadow: 0 4px 6px -1px rgba(0,0,0,.1), 0 2px 4px -1px rgba(0,0,0,.06);
  --shadow2: 0 10px 15px -3px rgba(0,0,0,.1), 0 4px 6px -2px rgba(0,0,0,.05);
  --radius: 20px;
  --font: 'Outfit', 'Segoe UI', system-ui, sans-serif;
  --glass: rgba(255,255,255,.72);
}
body.dark {
  --bg: #1A202C;
  --card: #2D3748;
  --text: #F7FAFC;
  --muted: #A0AEC0;
  --primary: #81E6D9;
  --primary-hover: #5FD3C4;
  --ring: #4A5568;
  --danger: #F28C8C;
  --highlight: #F6E05E;
  --shadow: 0 8px 20px rgba(0,0,0,.4);
  --shadow2: 0 12px 32px rgba(0,0,0,.5);
  --glass: rgba(45,55,72,.72);
}

*, *::before, *::after { box-sizing: border-box; }
body {
  margin: 0;
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
  min-height: 100dvh;
  overflow-x: hidden;
  transition: background .3s, color .3s;
  -webkit-text-size-adjust: 100%;
  -webkit-tap-highlight-color: transparent;
}
button { font-family: inherit; font-size: 1rem; touch-action: manipulation; }
button:focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; }

/* ── Background Glows ──────────────────────────────────── */
.bg-glow {
  position: fixed; border-radius: 50%; filter: blur(80px);
  z-index: -1; pointer-events: none; opacity: .12;
  animation: floatGlow 20s infinite alternate ease-in-out;
}
.glow-1 { background: var(--primary); top:-10%; right:-10%; width:60vw; height:60vw; }
.glow-2 { background: var(--highlight); bottom:-10%; left:-10%; width:60vw; height:60vw; animation-delay:-5s; }
@keyframes floatGlow {
  0%   { transform: translate(0,0) scale(1); }
  100% { transform: translate(10%,10%) scale(1.1); }
}

/* ── Header ────────────────────────────────────────────── */
header {
  display: flex; justify-content: space-between; align-items: center;
  padding: 1rem 1.5rem;
  background: var(--glass);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: var(--shadow);
  position: sticky; top: 0; z-index: 100;
  border-bottom: 1px solid rgba(255,255,255,.3);
}
.brand h1 { margin:0; font-size:1.25rem; color:var(--primary); }
.brand small { font-size:.78rem; color:var(--muted); font-weight:500; }
.top-actions { display:flex; gap:8px; align-items:center; }
.icon-btn {
  background: transparent; border: none;
  font-size: 1.2rem; cursor: pointer; padding: 8px;
  border-radius: 50%; transition: background .2s;
}
.icon-btn:hover { background: rgba(0,0,0,.06); }

/* ── Emergency Bar (always visible) ───────────────────── */
.emergency-bar {
  background: #D32F2F;
  color: white;
  text-align: center;
  padding: 10px 16px;
  font-weight: 700;
  font-size: .95rem;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
}
.emergency-bar a {
  color: #FFD54F;
  text-decoration: none;
  font-weight: 900;
  font-size: 1.05rem;
  white-space: nowrap;
}

/* ── Main Layout ───────────────────────────────────────── */
main { max-width: 560px; margin: 0 auto; padding: 1.5rem 1rem 5rem; }

/* ── Screens ───────────────────────────────────────────── */
.screen { display: none; animation: fadeIn .35s ease; }
.screen.active { display: block; }
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(12px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ── Cards ─────────────────────────────────────────────── */
.card-panel {
  background: var(--glass);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(255,255,255,.4);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow);
  margin-bottom: 16px;
}
.card-title {
  font-size: 1.3rem; font-weight: 800; margin: 0 0 6px;
}
.card-hint { font-size: .9rem; color: var(--muted); margin: 0 0 16px; }

/* ── Triage (Home Screen) ──────────────────────────────── */
.triage-hello {
  text-align: center;
  padding: 2rem 0 1rem;
}
.triage-hello .big-emoji { font-size: 4rem; display: block; margin-bottom: .5rem; }
.triage-hello h2 { font-size: 1.8rem; font-weight: 900; margin: 0 0 8px; }
.triage-hello p { font-size: 1rem; color: var(--muted); margin: 0 0 2rem; }

.feeling-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-bottom: 16px;
}
.feeling-btn {
  background: var(--card);
  border: 2px solid var(--ring);
  border-radius: 16px;
  padding: 18px 12px;
  cursor: pointer;
  text-align: center;
  transition: all .2s;
  display: flex; flex-direction: column; align-items: center; gap: 8px;
}
.feeling-btn:hover, .feeling-btn:active {
  border-color: var(--primary);
  transform: scale(.97);
  box-shadow: var(--shadow);
}
.feeling-btn .f-emoji { font-size: 2.2rem; }
.feeling-btn .f-label { font-size: .95rem; font-weight: 700; }
.feeling-btn .f-sub   { font-size: .78rem; color: var(--muted); }
.feeling-btn.urgent { border-color: var(--danger); background: rgba(224,122,95,.05); }
.feeling-btn.urgent .f-label { color: var(--danger); }

/* ── Technique Menu ────────────────────────────────────── */
.technique-list { display: flex; flex-direction: column; gap: 12px; }
.tech-btn {
  background: var(--card);
  border: 2px solid var(--ring);
  border-radius: 16px;
  padding: 16px 18px;
  cursor: pointer;
  text-align: left;
  display: flex; align-items: center; gap: 14px;
  transition: all .2s;
  width: 100%;
}
.tech-btn:hover { border-color: var(--primary); box-shadow: var(--shadow); transform: translateX(4px); }
.tech-btn .t-emoji { font-size: 2rem; flex-shrink: 0; }
.tech-btn .t-text {}
.tech-btn .t-name { font-size: 1rem; font-weight: 700; display: block; }
.tech-btn .t-desc { font-size: .82rem; color: var(--muted); display: block; margin-top: 2px; }
.tech-btn .t-time { font-size: .75rem; background: var(--ring); padding: 2px 8px; border-radius: 99px; margin-top: 6px; display: inline-block; font-weight: 600; }
.tech-btn.recommended { border-color: var(--primary); background: rgba(91,140,150,.06); }
.tech-btn.recommended::before {
  content: "⭐ Recomendada";
  position: absolute;
  top: -12px; left: 14px;
  background: var(--primary); color: white;
  font-size: .65rem; font-weight: 800; padding: 2px 10px; border-radius: 99px;
}
.tech-btn.recommended { position: relative; }

/* ── Back button ───────────────────────────────────────── */
.back-btn {
  background: transparent; border: none; color: var(--muted);
  font-size: .9rem; cursor: pointer; padding: 8px 4px;
  display: flex; align-items: center; gap: 6px; margin-bottom: 12px;
  font-weight: 600;
}
.back-btn:hover { color: var(--text); }

/* ── Step Screen ───────────────────────────────────────── */
.step-header { text-align: center; margin-bottom: 24px; }
.step-header .step-emoji { font-size: 3.5rem; display: block; margin-bottom: .5rem; }
.step-header h2 { margin: 0 0 6px; font-size: 1.5rem; font-weight: 900; }
.step-header p { margin: 0; font-size: 1rem; color: var(--muted); }

.step-instruction {
  background: var(--bg);
  border: 1px solid var(--ring);
  border-radius: 16px;
  padding: 20px;
  margin-bottom: 20px;
  font-size: 1.1rem;
  line-height: 1.6;
  text-align: center;
}
.step-instruction strong { color: var(--primary); }

/* Progress */
.progress-wrap { margin-bottom: 20px; }
.progress-label { font-size: .8rem; color: var(--muted); margin-bottom: 6px; display: flex; justify-content: space-between; }
.progress-bar-bg { height: 8px; background: var(--ring); border-radius: 99px; overflow: hidden; }
.progress-bar-fill { height: 100%; background: var(--primary); border-radius: 99px; transition: width .5s ease; }

/* Countdown */
.countdown-display {
  text-align: center;
  font-size: 3.5rem;
  font-weight: 900;
  color: var(--primary);
  font-variant-numeric: tabular-nums;
  margin: 16px 0;
  letter-spacing: -2px;
}
/* Accessible hidden class */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}
.countdown-label { font-size: .85rem; text-transform: uppercase; letter-spacing: .1em; color: var(--muted); font-weight: 700; text-align: center; }

/* ── Buttons ───────────────────────────────────────────── */
.btn {
  background: var(--card); border: 1.5px solid var(--ring);
  color: var(--text); padding: 12px 20px; border-radius: 14px;
  cursor: pointer; font-weight: 700; transition: all .2s;
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  font-size: 1rem;
}
.btn:active { transform: scale(.96); }
.btn.primary { background: var(--primary); color: #fff; border: none; }
.btn.primary:hover { background: var(--primary-hover); }
.btn.danger { background: var(--danger); color: #fff; border: none; }
.btn.full { width: 100%; padding: 16px; font-size: 1.05rem; }

/* ── Breathing Box ─────────────────────────────────────── */
.breath-box-container {
  width: 100%; height: 200px;
  display: grid; place-items: center; position: relative;
  background: var(--bg); border-radius: 20px;
  margin: 16px 0; overflow: hidden; border: 1px solid var(--ring);
}
.breath-square {
  grid-area: 1/1; width: 72px; height: 72px;
  background: var(--primary); border-radius: 12px;
  transition: transform 4s linear, opacity .5s;
  box-shadow: 0 0 30px var(--primary); opacity: .85;
  z-index: 2; margin: auto;
}
.breath-square.expanding  { transform: scale(1.9); }
.breath-square.contracting { transform: scale(1); }
.breath-square.holding { animation: pulse-glow 2s infinite ease-in-out; }
@keyframes pulse-glow {
  0%,100% { box-shadow: 0 0 20px var(--primary); filter: brightness(1); }
  50%      { box-shadow: 0 0 50px var(--primary); filter: brightness(1.2); }
}
.breath-phase-label {
  grid-area: 1/1; z-index: 3; margin: auto;
  font-size: 1rem; font-weight: 800; color: white;
  text-shadow: 0 1px 4px rgba(0,0,0,.4);
  pointer-events: none;
}

/* ── Sensory items ─────────────────────────────────────── */
.sensory-grid { display:grid; grid-template-columns:repeat(5,1fr); gap:10px; margin-top:16px; }
.sensory-item {
  aspect-ratio:1; background:var(--bg); border:2px solid var(--ring);
  border-radius:14px; display:grid; place-items:center;
  font-size:1.6rem; cursor:pointer; transition:.2s; user-select:none;
}
.sensory-item.checked { background:var(--primary); border-color:var(--primary); color:#fff; transform:scale(.92); }
.sensory-item:hover:not(.checked) { border-color: var(--primary); }

/* ── Bubbles ───────────────────────────────────────────── */
.bubbles-container {
  position:relative; width:100%; height:230px;
  background:var(--bg); border-radius:var(--radius);
  margin-top:12px; overflow:hidden; touch-action:none;
  border: 1px solid var(--ring);
}
.bubble {
  position:absolute; padding:8px 16px;
  background:var(--card); border:2px solid var(--ring);
  border-radius:50px; font-weight:700; cursor:pointer;
  user-select:none; box-shadow:var(--shadow);
  transition:transform .1s, opacity .2s; font-size:.95rem;
}
.bubble.correct { border-color:var(--primary); color:var(--primary); }
.bubble.burst   { transform:scale(2); opacity:0; pointer-events:none; }

/* ── Metronome ─────────────────────────────────────────── */
.metronome-visual { display:flex; flex-direction:column; align-items:center; gap:16px; padding: 20px 0; }
.metronome-beat { width:100%; height:10px; background:var(--ring); border-radius:4px; position:relative; overflow:hidden; }
.metronome-beat::after {
  content:""; position:absolute; top:0; left:0; height:100%; width:50%;
  background:var(--danger); transform:translateX(-100%); transition:transform .6s ease-in-out;
}
.metronome-beat.beat-left::after  { transform:translateX(0); }
.metronome-beat.beat-right::after { transform:translateX(100%); }
.metronome-text { font-size:1.8rem; font-weight:900; color:var(--danger); }
.metronome-hint { font-size:.9rem; color:var(--muted); text-align:center; max-width:260px; margin:0 auto; }

/* ── Noise ─────────────────────────────────────────────── */
.noise-panel { display:flex; flex-direction:column; gap:14px; }
.noise-row   { display:flex; align-items:center; gap:12px; }

/* ── Success screen ────────────────────────────────────── */
.success-screen { text-align: center; padding: 2rem 0; }
.success-screen .s-emoji { font-size: 4rem; display: block; margin-bottom: 1rem; animation: pop .4s cubic-bezier(.34,1.56,.64,1); }
@keyframes pop { from { transform: scale(0); } to { transform: scale(1); } }
.success-screen h2 { font-size: 1.8rem; font-weight: 900; margin: 0 0 12px; color: var(--success); }
.success-screen p { font-size: 1rem; color: var(--muted); margin: 0 0 2rem; }

/* ── Toast ─────────────────────────────────────────────── */
#toast {
  position:fixed; bottom:24px; left:50%;
  transform:translateX(-50%) translateY(100px);
  background:var(--text); color:var(--bg);
  padding:10px 20px; border-radius:50px; font-weight:700;
  opacity:0; transition:all .3s cubic-bezier(.4,0,.2,1);
  box-shadow:0 4px 12px rgba(0,0,0,.2); z-index:9999;
  white-space: nowrap;
}
#toast.show { transform:translateX(-50%) translateY(0); opacity:1; }

/* ── Footer ────────────────────────────────────────────── */
footer { text-align:center; padding:20px 20px 40px; }
.disclaimer-mini { font-size:.78rem; color:var(--muted); max-width: 400px; margin: 0 auto 12px; }
.credits { font-size:.75rem; color:var(--muted); opacity:.7; margin:0; }

/* ── Evidence accordion ────────────────────────────────── */
.ev-toggle {
  width:100%; padding:14px 18px;
  display:flex; justify-content:space-between; align-items:center;
  background: var(--glass); backdrop-filter:blur(12px);
  border:1px solid rgba(255,255,255,.4);
  border-radius:var(--radius);
  cursor:pointer; font-weight:700; font-size:.95rem;
  color:var(--muted); box-shadow:var(--shadow);
  text-align:left; margin-bottom: 0;
}
.ev-toggle .chev { transition: transform .3s; display:inline-block; font-style:normal; }
.ev-toggle[aria-expanded="true"] .chev { transform: rotate(180deg); }
.ev-body {
  display:none; padding:4px;
  background:var(--glass); backdrop-filter:blur(12px);
  border:1px solid rgba(255,255,255,.4); border-top:none;
  border-radius:0 0 var(--radius) var(--radius);
  box-shadow:var(--shadow); margin-bottom:16px;
}
.ev-body.open { display:block; }
.ev-card { padding:14px 16px; border-bottom:1px solid var(--ring); }
.ev-card:last-child { border-bottom:none; }
.ev-title { font-weight:800; font-size:.95rem; margin:0 0 4px; color:var(--primary); display:flex; align-items:center; gap:8px; flex-wrap:wrap; }
.ev-level { display:inline-block; font-size:.65rem; font-weight:700; padding:2px 8px; border-radius:999px; }
.ev-level.high   { background:rgba(34,197,94,.15); color:#15803d; }
.ev-level.medium { background:rgba(245,158,11,.15); color:#b45309; }
.ev-desc { font-size:.85rem; color:var(--muted); margin:4px 0 8px; line-height:1.6; }
.ev-refs { font-size:.75rem; color:var(--muted); opacity:.85; padding-left:18px; margin:0; }
.ev-refs li { margin-bottom:3px; }

/* ── Responsive ───────────────────────────────────────── */
@media (max-width:480px) {
  main { padding:1rem .75rem 5rem; }
  header { padding:.8rem 1rem; }
  .brand h1 { font-size:1.05rem; }
  .feeling-grid { gap: 8px; }
}
@media (prefers-reduced-motion: reduce) {
  * { animation-duration:.01ms !important; transition-duration:.01ms !important; }
}

/* ── Disclaimer Modal ─────────────────────────────────── */
#disclaimerBackdrop {
  position: fixed; inset: 0;
  background: rgba(0,0,0,.65);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  z-index: 99999;
  display: flex; align-items: center; justify-content: center;
  padding: 20px;
  animation: fadeIn .3s ease;
}
#disclaimerBackdrop.hidden {
  display: none;
}
.disclaimer-modal {
  background: var(--card);
  border-radius: 24px;
  max-width: 440px;
  width: 100%;
  box-shadow: 0 24px 60px rgba(0,0,0,.4);
  overflow: hidden;
  animation: slideUp .4s cubic-bezier(.34,1.56,.64,1);
}
@keyframes slideUp {
  from { opacity:0; transform: translateY(40px) scale(.95); }
  to   { opacity:1; transform: translateY(0) scale(1); }
}
.dm-header {
  background: #D32F2F;
  color: white;
  padding: 24px 24px 20px;
  text-align: center;
}
.dm-header .dm-icon { font-size: 3rem; display: block; margin-bottom: 8px; }
.dm-header h2 { margin: 0; font-size: 1.3rem; font-weight: 900; line-height: 1.3; }
.dm-body {
  padding: 24px;
}
.dm-emergency {
  background: #FFF3F3;
  border: 2px solid #E57373;
  border-radius: 14px;
  padding: 14px 16px;
  margin-bottom: 18px;
  text-align: center;
}
.dm-emergency p { margin: 0 0 6px; font-size: .9rem; color: #C62828; font-weight: 700; }
.dm-emergency a {
  display: inline-block;
  background: #D32F2F; color: white;
  text-decoration: none; font-weight: 900; font-size: 1.1rem;
  padding: 10px 24px; border-radius: 99px;
  margin-top: 4px;
}
.dm-items { list-style: none; padding: 0; margin: 0 0 20px; display: flex; flex-direction: column; gap: 10px; }
.dm-items li {
  display: flex; gap: 12px; align-items: flex-start;
  font-size: .92rem; color: var(--muted); line-height: 1.5;
}
.dm-items li .di { font-size: 1.3rem; flex-shrink: 0; margin-top: 1px; }
.dm-items li strong { color: var(--text); }
.dm-confirm-text {
  font-size: .82rem; color: var(--muted); text-align: center;
  margin-bottom: 14px; line-height: 1.5;
}
#btnEntiendo {
  width: 100%;
  padding: 16px;
  background: var(--primary);
  color: white;
  border: none;
  border-radius: 14px;
  font-size: 1.1rem;
  font-weight: 900;
  cursor: pointer;
  transition: background .2s, transform .15s;
  font-family: inherit;
}
#btnEntiendo:hover { background: var(--primary-hover); }
#btnEntiendo:active { transform: scale(.97); }

/* ── iOS Install Prompt Styles ────────────────────────── */
#iosInstallToast {
  position: fixed;
  bottom: 20px;
  left: 20px;
  right: 20px;
  background: var(--card);
  border: 2px solid var(--primary);
  border-radius: 20px;
  padding: 16px;
  box-shadow: var(--shadow2);
  z-index: 99999;
  display: none;
  animation: slideUp .4s ease;
}
.ios-toast-content {
  display: flex;
  align-items: center;
  gap: 12px;
}
.ios-toast-icon { font-size: 2rem; }
.ios-toast-text { font-size: 0.9rem; color: var(--text); flex: 1; }
.ios-toast-close {
  background: transparent;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--muted);
  padding: 4px;
}