/* Encuestas Alphoran — tema alineado con alphoran.com (azul marino + azul/cian) */
:root {
  --bg: oklch(0.14 0.025 255);
  --bg-grad: oklch(0.17 0.04 250);
  --surface: oklch(0.19 0.03 255);
  --surface-2: oklch(0.23 0.035 255);
  --border: oklch(0.32 0.04 255);
  --border-soft: oklch(0.26 0.035 255);
  --text: oklch(0.96 0.01 250);
  --muted: oklch(0.74 0.03 250);
  --primary: oklch(0.74 0.18 235);
  --primary-ink: oklch(0.12 0.03 255);
  --accent: oklch(0.78 0.15 200);
  --danger: oklch(0.72 0.19 25);
  --ok: oklch(0.78 0.16 155);
  --warn: oklch(0.82 0.15 85);
  --radius: 14px;
  --shadow: 0 10px 30px -12px oklch(0.05 0.03 255 / 0.7);
  color-scheme: dark;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0; min-height: 100vh; color: var(--text); line-height: 1.5;
  font: 16px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  background: radial-gradient(1100px 520px at 50% -160px, var(--bg-grad), var(--bg) 70%) no-repeat, var(--bg);
}
h1, h2, h3 { letter-spacing: -0.02em; line-height: 1.2; margin: 0; }
h1 { font-size: clamp(1.5rem, 4vw, 2rem); }
h2 { font-size: 1.25rem; }
h3 { font-size: 1.05rem; }
p { margin: 0; }
a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }
.muted { color: var(--muted); }
.small { font-size: 0.875rem; }
.hidden { display: none !important; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

/* ---------- estructura ---------- */
.wrap { width: min(100% - 32px, 960px); margin-inline: auto; }
.wrap.narrow { width: min(100% - 32px, 680px); }
.topbar { border-bottom: 1px solid var(--border-soft); background: oklch(0.14 0.025 255 / 0.8); backdrop-filter: blur(10px); position: sticky; top: 0; z-index: 20; }
.topbar .wrap { display: flex; align-items: center; gap: 16px; min-height: 60px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; letter-spacing: -0.02em; color: var(--text); }
.brand:hover { text-decoration: none; }
.brand img { width: 34px; height: 34px; object-fit: contain; }
.brand span small { color: var(--muted); font-weight: 500; margin-left: 6px; }
.spacer { flex: 1; }
.nav { display: flex; align-items: center; gap: 4px; }
.nav a, .nav button { color: var(--muted); padding: 8px 12px; border-radius: 10px; background: none; border: 0; font: inherit; cursor: pointer; }
.nav a:hover, .nav button:hover { color: var(--text); background: var(--surface); text-decoration: none; }
.nav a.active { color: var(--text); background: var(--surface); }
main { padding: 28px 0 80px; }
.page-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 16px; flex-wrap: wrap; margin-bottom: 22px; }
.page-head .actions { display: flex; gap: 10px; flex-wrap: wrap; }
.stack > * + * { margin-top: 16px; }
.row { display: flex; gap: 12px; align-items: center; flex-wrap: wrap; }
.grid { display: grid; gap: 16px; }
.grid.cols-2 { grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }
.grid.cols-3 { grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); }

.card { background: var(--surface); border: 1px solid var(--border-soft); border-radius: var(--radius); padding: 20px; box-shadow: var(--shadow); }
.card.flat { box-shadow: none; }
.card h2 + .muted { margin-top: 4px; }

/* ---------- controles ---------- */
label.field { display: block; }
label.field > span.lbl, .lbl { display: block; font-weight: 600; font-size: 0.9rem; margin-bottom: 6px; }
.help { color: var(--muted); font-size: 0.85rem; margin: -2px 0 8px; }
input[type=text], input[type=email], input[type=password], input[type=number], input[type=date], input[type=search], select, textarea {
  width: 100%; padding: 11px 13px; font: inherit; color: var(--text);
  background: var(--bg); border: 1px solid var(--border); border-radius: 10px;
  transition: border-color .15s, box-shadow .15s;
}
textarea { resize: vertical; min-height: 92px; }
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px oklch(0.74 0.18 235 / 0.22); }
input[readonly] { color: var(--muted); }
select { appearance: auto; }
input[type=checkbox], input[type=radio] { accent-color: var(--primary); }
::placeholder { color: oklch(0.55 0.03 250); }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 10px 16px; font: inherit; font-weight: 600; border-radius: 10px; cursor: pointer;
  border: 1px solid var(--border); background: var(--surface-2); color: var(--text);
  transition: transform .06s, background .15s, border-color .15s;
}
.btn:hover { background: oklch(0.27 0.04 255); text-decoration: none; }
.btn:active { transform: translateY(1px); }
.btn:disabled { opacity: .5; cursor: not-allowed; }
.btn.primary { background: linear-gradient(135deg, var(--primary), var(--accent)); color: var(--primary-ink); border-color: transparent; }
.btn.primary:hover { filter: brightness(1.08); background: linear-gradient(135deg, var(--primary), var(--accent)); }
.btn.danger { color: var(--danger); border-color: oklch(0.72 0.19 25 / 0.4); background: transparent; }
.btn.danger:hover { background: oklch(0.72 0.19 25 / 0.12); }
.btn.ghost { background: transparent; }
.btn.sm { padding: 6px 11px; font-size: 0.875rem; border-radius: 8px; }
.btn.block { width: 100%; }
:focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; }

.badge { display: inline-block; padding: 2px 10px; border-radius: 99px; font-size: 0.78rem; font-weight: 600; border: 1px solid var(--border); color: var(--muted); }
.badge.open { color: var(--ok); border-color: oklch(0.78 0.16 155 / 0.4); background: oklch(0.78 0.16 155 / 0.1); }
.badge.draft { color: var(--warn); border-color: oklch(0.82 0.15 85 / 0.4); background: oklch(0.82 0.15 85 / 0.08); }
.badge.closed { color: var(--muted); }
.badge.groups { color: var(--accent); border-color: oklch(0.78 0.15 200 / 0.4); }

.tabs { display: flex; gap: 4px; border-bottom: 1px solid var(--border-soft); margin-bottom: 22px; overflow-x: auto; }
.tabs a { padding: 10px 14px; color: var(--muted); border-bottom: 2px solid transparent; white-space: nowrap; margin-bottom: -1px; }
.tabs a:hover { color: var(--text); text-decoration: none; }
.tabs a.active { color: var(--text); border-color: var(--primary); }

.err { color: var(--danger); font-size: 0.85rem; margin-top: 6px; }
.alert { padding: 12px 14px; border-radius: 10px; border: 1px solid var(--border); background: var(--surface-2); }
.alert.error { border-color: oklch(0.72 0.19 25 / 0.5); background: oklch(0.72 0.19 25 / 0.1); color: oklch(0.88 0.08 25); }
.alert.ok { border-color: oklch(0.78 0.16 155 / 0.5); background: oklch(0.78 0.16 155 / 0.1); }

.progress { height: 8px; background: var(--bg); border-radius: 99px; overflow: hidden; border: 1px solid var(--border-soft); }
.progress > i { display: block; height: 100%; width: 0; background: linear-gradient(90deg, var(--primary), var(--accent)); border-radius: 99px; transition: width .4s; }
.progress.done > i { background: var(--ok); }

.stat { padding: 16px; border-radius: 12px; background: var(--bg); border: 1px solid var(--border-soft); }
.stat b { display: block; font-size: 1.8rem; letter-spacing: -0.03em; }
.stat span { color: var(--muted); font-size: 0.85rem; }

/* ---------- lista de encuestas ---------- */
.survey-item { display: flex; gap: 16px; align-items: center; justify-content: space-between; flex-wrap: wrap; }
.survey-item h3 a { color: var(--text); }
.survey-item .meta { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; margin-top: 8px; }
.empty { text-align: center; padding: 48px 20px; color: var(--muted); }
.empty img { width: 64px; opacity: .85; margin-bottom: 12px; }

/* ---------- tabla / listas ---------- */
.table-wrap { overflow-x: auto; border: 1px solid var(--border-soft); border-radius: 12px; }
table { width: 100%; border-collapse: collapse; font-size: 0.92rem; }
th, td { padding: 10px 12px; text-align: left; border-bottom: 1px solid var(--border-soft); vertical-align: top; }
th { color: var(--muted); font-weight: 600; font-size: 0.8rem; text-transform: uppercase; letter-spacing: .04em; background: var(--surface); position: sticky; top: 0; }
tr:last-child td { border-bottom: 0; }
td .preview { max-width: 420px; color: var(--muted); display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
td.actions { white-space: nowrap; text-align: right; }

/* ---------- editor de preguntas ---------- */
.q-card { background: var(--bg); border: 1px solid var(--border-soft); border-radius: 12px; padding: 16px; }
.q-card .q-head { display: flex; gap: 10px; align-items: center; margin-bottom: 12px; }
.q-card .q-num { width: 28px; height: 28px; border-radius: 8px; background: var(--surface-2); display: grid; place-items: center; font-weight: 700; font-size: 0.85rem; color: var(--primary); flex: none; }
.q-card .q-tools { display: flex; gap: 4px; margin-left: auto; }
.icon-btn { width: 32px; height: 32px; border-radius: 8px; border: 1px solid var(--border-soft); background: var(--surface); color: var(--muted); cursor: pointer; font-size: 0.95rem; }
.icon-btn:hover { color: var(--text); background: var(--surface-2); }
.icon-btn:disabled { opacity: .35; cursor: default; }
.switch { display: inline-flex; align-items: center; gap: 8px; cursor: pointer; font-size: 0.9rem; color: var(--muted); }
.savebar { position: sticky; bottom: 0; padding: 14px 0; margin-top: 18px; background: linear-gradient(transparent, var(--bg) 40%); display: flex; gap: 12px; align-items: center; }
.dirty { color: var(--warn); font-size: 0.9rem; }

/* ---------- barras de resumen ---------- */
.bars .bar-row { display: grid; grid-template-columns: minmax(80px, 200px) 1fr 48px; gap: 10px; align-items: center; margin: 6px 0; font-size: 0.9rem; }
.bars .bar-row .progress { height: 10px; }
.bars .bar-row b { text-align: right; font-variant-numeric: tabular-nums; }
.spark { display: flex; align-items: flex-end; gap: 4px; height: 70px; }
.spark i { flex: 1; min-height: 3px; background: linear-gradient(var(--accent), var(--primary)); border-radius: 4px 4px 0 0; opacity: .85; }

.link-box { display: flex; gap: 8px; }
.link-box input { flex: 1; min-width: 0; }

/* ---------- modal / toast ---------- */
.overlay { position: fixed; inset: 0; background: oklch(0.05 0.02 255 / 0.7); display: grid; place-items: center; padding: 16px; z-index: 50; overflow-y: auto; }
.modal { width: min(100%, 560px); background: var(--surface); border: 1px solid var(--border); border-radius: 16px; padding: 22px; box-shadow: var(--shadow); max-height: calc(100vh - 32px); overflow-y: auto; }
.modal.wide { width: min(100%, 720px); }
.modal h2 { margin-bottom: 14px; }
.modal .foot { display: flex; justify-content: flex-end; gap: 10px; margin-top: 20px; flex-wrap: wrap; }
.toasts { position: fixed; right: 16px; bottom: 16px; display: grid; gap: 8px; z-index: 60; }
.toast { padding: 12px 16px; border-radius: 12px; background: var(--surface-2); border: 1px solid var(--border); box-shadow: var(--shadow); max-width: 340px; animation: pop .2s ease-out; }
.toast.error { border-color: oklch(0.72 0.19 25 / 0.6); }
.toast.ok { border-color: oklch(0.78 0.16 155 / 0.6); }
@keyframes pop { from { opacity: 0; transform: translateY(8px); } }

/* ---------- formulario público ---------- */
.public-head { padding: 28px 0 8px; text-align: center; }
.public-head .brand { justify-content: center; font-size: 1.05rem; }
.form-card { padding: 28px; }
.form-card .title { margin-bottom: 8px; }
.q { padding: 18px 0; border-top: 1px solid var(--border-soft); }
.q:first-of-type { border-top: 0; }
.q .q-label { font-weight: 600; margin-bottom: 4px; display: block; }
.q .req { color: var(--danger); margin-left: 4px; }
.q.has-error input[type=text], .q.has-error input[type=email], .q.has-error input[type=date], .q.has-error select, .q.has-error textarea { border-color: var(--danger); }
.choice { display: flex; align-items: center; gap: 10px; padding: 10px 12px; margin: 6px 0; border: 1px solid var(--border); border-radius: 10px; cursor: pointer; background: var(--bg); transition: border-color .15s, background .15s; }
.choice:hover { border-color: var(--primary); }
.choice:has(input:checked) { border-color: var(--primary); background: oklch(0.74 0.18 235 / 0.12); }
.choice input { accent-color: var(--primary); width: 18px; height: 18px; margin: 0; flex: none; }
.scale { display: flex; gap: 8px; flex-wrap: wrap; }
.scale label { cursor: pointer; }
.scale input { position: absolute; opacity: 0; pointer-events: none; }
.scale span { display: grid; place-items: center; width: 46px; height: 46px; border-radius: 12px; border: 1px solid var(--border); background: var(--bg); font-weight: 700; transition: all .15s; }
.scale label:hover span { border-color: var(--primary); }
.scale input:checked + span { background: linear-gradient(135deg, var(--primary), var(--accent)); color: var(--primary-ink); border-color: transparent; }
.scale input:focus-visible + span { outline: 2px solid var(--primary); outline-offset: 2px; }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.group-box { margin: 18px 0 6px; padding: 16px; border-radius: 12px; border: 1px solid oklch(0.78 0.15 200 / 0.35); background: oklch(0.78 0.15 200 / 0.07); }
.group-box h3 { color: var(--accent); }
.chips { display: flex; gap: 6px; flex-wrap: wrap; margin-top: 8px; }
.chip { padding: 3px 10px; border-radius: 99px; background: var(--surface-2); border: 1px solid var(--border); font-size: 0.85rem; }
.thanks { text-align: center; padding: 36px 8px; }
.thanks .tick { width: 64px; height: 64px; margin: 0 auto 16px; border-radius: 50%; display: grid; place-items: center; font-size: 2rem; background: linear-gradient(135deg, var(--primary), var(--accent)); color: var(--primary-ink); }
.foot-note { text-align: center; color: var(--muted); font-size: 0.85rem; margin-top: 24px; }

.login-box { margin: 10vh auto 0; }
.login-box .brand { justify-content: center; margin-bottom: 20px; font-size: 1.2rem; }
.login-box .brand img { width: 52px; height: 52px; }

@media (max-width: 560px) {
  .card, .form-card { padding: 16px; }
  .bars .bar-row { grid-template-columns: 1fr 48px; }
  .bars .bar-row .progress { grid-column: 1 / -1; order: 3; }
  .nav a, .nav button { padding: 8px; }
  .brand span small { display: none; }
}
@media (prefers-reduced-motion: reduce) { * { transition: none !important; animation: none !important; } }