:root {
  --canvas: #f4f2ee;
  --surface: #ffffff;
  --surface-2: #fbfaf8;
  --ink: #16202a;
  --ink-soft: #46525e;
  --muted: #7c8794;
  --line: #e6e2db;
  --line-strong: #d6d1c8;
  --accent: #3159c9;
  --accent-soft: #eef2fd;
  --accent-ink: #ffffff;
  --danger: #a8342a;
  --danger-soft: #fdf2f0;
  --radius-lg: 18px;
  --radius: 12px;
  --radius-sm: 9px;
  --shadow-sm: 0 1px 2px rgba(22, 32, 42, .05), 0 1px 3px rgba(22, 32, 42, .04);
  --shadow-md: 0 4px 12px rgba(22, 32, 42, .07), 0 1px 3px rgba(22, 32, 42, .05);
  --ease: cubic-bezier(.2, .7, .3, 1);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--canvas);
  color: var(--ink);
  font: 16px/1.55 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", system-ui, sans-serif;
  -webkit-font-smoothing: antialiased;
  -webkit-text-size-adjust: 100%;
}

.hidden { display: none !important; }
.muted { color: var(--muted); font-size: .9rem; }
.error { color: var(--danger); font-size: .92rem; }

h1, h2, h3 { margin: 0; font-weight: 640; letter-spacing: -.015em; }
h2 { font-size: 1.15rem; }
h3 { font-size: .78rem; text-transform: uppercase; letter-spacing: .09em; color: var(--muted); font-weight: 620; }

.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  padding-top: calc(10px + env(safe-area-inset-top, 0px));
  background: rgba(255, 255, 255, .86);
  backdrop-filter: saturate(150%) blur(10px);
  border-bottom: 1px solid var(--line);
}

.brand { display: flex; align-items: center; gap: 9px; min-width: 0; flex: 1 1 auto; }
.brand-mark {
  width: 26px; height: 26px;
  border-radius: 8px;
  background: linear-gradient(150deg, var(--accent), #5b83ea);
  position: relative;
  flex: none;
}
.brand-mark::before, .brand-mark::after {
  content: "";
  position: absolute;
  background: #fff;
  border-radius: 3px;
}
.brand-mark::before { width: 9px; height: 3px; left: 6px; top: 9px; }
.brand-mark::after { width: 5px; height: 3px; left: 6px; top: 15px; opacity: .7; }

.topbar h1 {
  font-size: 1.02rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  min-width: 0;
}
.topbar-actions { margin-left: auto; display: flex; gap: 8px; flex: 0 0 auto; }
.topbar button { white-space: nowrap; }

main {
  padding: 18px 14px calc(28px + env(safe-area-inset-bottom, 0px));
  max-width: 940px;
  margin: 0 auto;
}

button {
  font: inherit;
  font-weight: 560;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  padding: 11px 15px;
  min-height: 44px;
  cursor: pointer;
  transition: background-color .15s var(--ease), border-color .15s var(--ease),
              color .15s var(--ease), transform .12s var(--ease), box-shadow .15s var(--ease);
}
button.primary {
  background: var(--accent);
  color: var(--accent-ink);
  box-shadow: var(--shadow-sm);
}
button.primary:hover { background: #2a4fb5; }
button.ghost { background: var(--surface); border-color: var(--line-strong); color: var(--ink-soft); }
button.ghost:hover { border-color: var(--muted); color: var(--ink); }
button.danger { color: var(--danger); border-color: #edcfca; background: var(--surface); }
button.danger:hover { background: var(--danger-soft); border-color: var(--danger); }
button:active { transform: translateY(1px); }
button:focus-visible, a:focus-visible, select:focus-visible, input:focus-visible, summary:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}
button[disabled] { opacity: .6; cursor: default; }

.view > h2 { margin-bottom: 14px; }

.empty {
  display: grid;
  justify-items: center;
  gap: 10px;
  text-align: center;
  padding: 44px 18px;
  background: var(--surface);
  border: 1px dashed var(--line-strong);
  border-radius: var(--radius-lg);
  color: var(--muted);
}
.empty .bubbles { display: flex; align-items: flex-end; gap: 6px; }
.empty .bubbles i {
  display: block; width: 30px; height: 22px;
  border-radius: 8px; border: 1.5px solid var(--line-strong);
  background: var(--surface-2);
}
.empty .bubbles i:last-child { width: 22px; height: 16px; background: var(--accent-soft); border-color: #c9d6f6; }
.empty strong { color: var(--ink); font-weight: 600; }

.dialog-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }
.dialog-list li {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 15px;
  box-shadow: var(--shadow-sm);
  display: flex;
  gap: 14px;
  align-items: center;
  justify-content: space-between;
  transition: border-color .15s var(--ease), box-shadow .15s var(--ease);
}
.dialog-list li:hover { border-color: var(--line-strong); box-shadow: var(--shadow-md); }
.dialog-list .title { font-weight: 640; letter-spacing: -.01em; }
.dialog-list .row-actions { display: flex; gap: 8px; flex: none; align-self: flex-end; }
.dialog-list li { flex-wrap: wrap; }
.dialog-list li > div:first-child { flex: 1 1 190px; min-width: 0; }
.dialog-list .row-actions button { padding: 9px 13px; min-height: 40px; font-size: .92rem; }

.chips { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 7px; }
.chip {
  font-size: .78rem;
  color: var(--ink-soft);
  background: var(--surface-2);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 3px 9px;
  white-space: nowrap;
}
.chip.accent { background: var(--accent-soft); border-color: #cdd9f7; color: #27419a; }

.surface {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 16px;
  box-shadow: var(--shadow-sm);
}

.create-grid { display: grid; gap: 14px 16px; grid-template-columns: 1fr; }
.field { display: block; min-width: 0; }
.field > span {
  display: block;
  font-size: .78rem;
  text-transform: uppercase;
  letter-spacing: .07em;
  color: var(--muted);
  margin-bottom: 6px;
  font-weight: 600;
}
.field > span b { color: var(--ink); font-weight: 640; letter-spacing: 0; }
.field select, .field input[type="password"] {
  width: 100%;
  min-height: 44px;
  padding: 10px 12px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-sm);
  background: var(--surface);
  font: inherit;
  color: var(--ink);
  transition: border-color .15s var(--ease), box-shadow .15s var(--ease);
}

.field input[type="password"] {
  appearance: none;
  background-image: none;
}

.field select {
  appearance: none;
  background-image: linear-gradient(45deg, transparent 50%, var(--muted) 50%), linear-gradient(135deg, var(--muted) 50%, transparent 50%);
  background-position: calc(100% - 18px) 50%, calc(100% - 13px) 50%;
  background-size: 5px 5px, 5px 5px;
  background-repeat: no-repeat;
}
.field select:hover { border-color: var(--muted); }
.field.range input[type="range"] {
  width: 100%;
  height: 44px;
  appearance: none;
  background: transparent;
}
.field.range input[type="range"]::-webkit-slider-runnable-track {
  height: 6px;
  border-radius: 999px;
  background: var(--line);
}
.field.range input[type="range"]::-webkit-slider-thumb {
  appearance: none;
  width: 22px; height: 22px;
  margin-top: -8px;
  border-radius: 50%;
  background: var(--surface);
  border: 2px solid var(--accent);
  box-shadow: var(--shadow-sm);
}
.field.range input[type="range"]::-moz-range-track { height: 6px; border-radius: 999px; background: var(--line); }
.field.range input[type="range"]::-moz-range-thumb {
  width: 20px; height: 20px; border-radius: 50%;
  background: var(--surface); border: 2px solid var(--accent);
}

.create-actions { display: flex; gap: 8px; margin-top: 18px; flex-wrap: wrap; }
.create-actions .primary { margin-left: auto; }

.turns { display: grid; gap: 12px; margin: 16px 0 6px; }
.turn {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 12px 14px;
  box-shadow: var(--shadow-sm);
  max-width: 92%;
  justify-self: start;
}
.turn .who {
  font-size: .74rem;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--muted);
  font-weight: 620;
  margin-bottom: 5px;
}
.turn.you {
  justify-self: end;
  background: var(--accent-soft);
  border-color: #cbd8f7;
}

.progress {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 16px;
  margin: 14px 0;
  box-shadow: var(--shadow-sm);
  display: grid;
  gap: 10px;
}
.progress p { margin: 0; color: var(--ink-soft); font-size: .94rem; }
.progress-track {
  height: 6px;
  border-radius: 999px;
  background: var(--accent-soft);
  overflow: hidden;
  position: relative;
}
.progress-track span {
  position: absolute;
  inset: 0 auto 0 0;
  width: 40%;
  border-radius: 999px;
  background: linear-gradient(90deg, #6f92ea, var(--accent));
  animation: slide 1.15s var(--ease) infinite;
}
@keyframes slide {
  0% { transform: translateX(-45%); }
  50% { transform: translateX(80%); }
  100% { transform: translateX(190%); }
}
.progress-track::after {
  content: "";
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(90deg, transparent 0 6px, rgba(255,255,255,.35) 6px 10px);
  opacity: .5;
}

.error-card {
  background: var(--danger-soft);
  border: 1px solid #edcfca;
  border-radius: var(--radius-lg);
  padding: 16px;
  margin: 14px 0;
  display: grid;
  gap: 12px;
  justify-items: start;
}
.error-card p { margin: 0; color: var(--danger); font-size: .94rem; }

.options { display: grid; gap: 10px; margin-top: 12px; }
.options::before {
  content: "Tu turno";
  font-size: .74rem;
  text-transform: uppercase;
  letter-spacing: .09em;
  color: var(--muted);
  font-weight: 620;
}
.options:empty::before { content: ""; }
.options button {
  font-weight: 400;
  display: flex;
  align-items: center;
  gap: 12px;
  text-align: left;
  background: var(--surface);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-lg);
  padding: 14px 16px;
  min-height: 52px;
  box-shadow: var(--shadow-sm);
  color: var(--ink);
}
.options button > span { font-weight: 400; }
.options button::before {
  counter-increment: opt;
  content: counter(opt);
  flex: none;
  width: 24px; height: 24px;
  border-radius: 50%;
  background: var(--accent-soft);
  border: 1px solid #cdd9f7;
  color: #27419a;
  font-size: .78rem;
  font-weight: 640;
  display: grid;
  place-items: center;
}
.options { counter-reset: opt; }
.options button:hover { border-color: var(--accent); box-shadow: var(--shadow-md); transform: translateY(-1px); }

.panel {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 14px 16px;
  margin: 14px 0;
  box-shadow: var(--shadow-sm);
}
.panel > summary {
  cursor: pointer;
  font-weight: 620;
  min-height: 44px;
  display: flex;
  align-items: center;
  gap: 8px;
  list-style: none;
}
.panel > summary::-webkit-details-marker { display: none; }
.panel > summary::after {
  content: "";
  margin-left: auto;
  width: 8px; height: 8px;
  border-right: 2px solid var(--muted);
  border-bottom: 2px solid var(--muted);
  transform: rotate(45deg);
  transition: transform .18s var(--ease);
}
.panel[open] > summary::after { transform: rotate(-135deg); }
.panel[open] > summary { margin-bottom: 14px; border-bottom: 1px solid var(--line); padding-bottom: 10px; }

.dialog-actions { display: flex; justify-content: flex-end; margin: 10px 0 0; }

.busy-strip {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: 3px;
  z-index: 60;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  background-size: 40% 100%;
  background-repeat: no-repeat;
  animation: sweep 1s linear infinite;
  pointer-events: none;
}
@keyframes sweep {
  0% { background-position: -40% 0; }
  100% { background-position: 140% 0; }
}

button[aria-busy="true"] {
  opacity: .75;
  cursor: progress;
  position: relative;
  padding-left: 34px;
}
button[aria-busy="true"]::before {
  content: "";
  position: absolute;
  left: 12px; top: 50%;
  width: 14px; height: 14px;
  margin-top: -7px;
  border-radius: 50%;
  border: 2px solid currentColor;
  border-top-color: transparent;
  animation: spin .7s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

.row-loading { color: var(--muted); font-style: normal; }

.toast {
  position: fixed;
  left: 50%;
  bottom: calc(20px + env(safe-area-inset-bottom, 0px));
  transform: translate(-50%, 8px);
  background: var(--ink);
  color: #fff;
  padding: 11px 18px;
  border-radius: 999px;
  font-size: .9rem;
  max-width: 90vw;
  box-shadow: var(--shadow-md);
  opacity: 0;
  transition: opacity .18s var(--ease), transform .18s var(--ease);
  pointer-events: none;
}
.toast:not(.hidden) { opacity: 1; transform: translate(-50%, 0); }

.login-body {
  display: grid;
  place-items: center;
  min-height: 100vh;
  padding: 20px;
  background:
    radial-gradient(1200px 600px at 50% -10%, #e9edf9 0%, transparent 60%),
    var(--canvas);
}
.login-card {
  width: 100%;
  max-width: 370px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: 26px 24px;
  display: grid;
  gap: 16px;
  box-shadow: var(--shadow-md);
}
.login-card h1 { font-size: 1.3rem; }
.login-card .eyebrow { font-size: .75rem; text-transform: uppercase; letter-spacing: .1em; color: var(--muted); font-weight: 620; }
.login-card .brand-mark { width: 34px; height: 34px; border-radius: 10px; }
.login-card .brand-mark::before { width: 12px; height: 3px; left: 8px; top: 12px; }
.login-card .brand-mark::after { width: 7px; height: 3px; left: 8px; top: 20px; }
.login-card button.primary { width: 100%; }

@media (max-width: 480px) {
  .topbar { gap: 8px; padding: 9px 12px; padding-top: calc(9px + env(safe-area-inset-top, 0px)); }
  .topbar-actions button { padding: 9px 11px; }
  .brand-mark { display: none; }
  #btn-back { padding: 9px 10px; }
}

@media (max-width: 560px) {
  .dialog-list li { flex-direction: column; align-items: stretch; }
  .dialog-list .row-actions { align-self: stretch; }
  .dialog-list .row-actions button { flex: 1; }
  .dialog-list .row-actions button:first-child { background: var(--accent-soft); border-color: #cbd8f7; color: #27419a; }
}

@media (min-width: 760px) {
  main { padding: 28px 24px 48px; }
  .create-grid { grid-template-columns: 1fr 1fr; }
  .topbar { padding: 12px 24px; }
}

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; animation: none !important; }
}