:root {
  --bg: #f3f6f9;
  --surface: #ffffff;
  --ink: #172c46;
  --ink-2: #4b5d70;
  --ink-3: #7d8c99;
  --line: rgba(23, 44, 70, 0.1);
  --navy: #172c46;
  --steel: #5d8497;
  --mist: #e1ebf2;
  --accent: #172c46;
  --accent-ink: #ffffff;
  --accent-soft: rgba(158, 191, 206, 0.2);
  --error: #9a3b32;
  --radius: 12px;
  --radius-sm: 8px;
  --ease: cubic-bezier(0.2, 0, 0, 1);
  --fast: 120ms;
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: "Onest", "Helvetica Neue", sans-serif;
  font-size: 16px;
  line-height: 1.5;
  font-variant-numeric: tabular-nums;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  grid-template-rows: auto 1fr auto;
  min-height: 100vh;
  min-height: 100dvh;
}

::selection { background: var(--accent); color: var(--accent-ink); }

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: 4px;
}

html { scrollbar-color: var(--ink-3) transparent; scrollbar-width: thin; }

h1, h2, p { margin: 0; }

.top {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 16px;
  padding: 16px 20px;
  background: var(--navy);
}

.logo { display: block; height: 36px; width: auto; }
.who { display: grid; justify-items: end; gap: 2px; min-width: 0; text-align: right; }
.brand { color: var(--mist); font-size: 13px; font-weight: 300; letter-spacing: 0.01em; }
/* Nombre de quien abrió el link: si alguien abre un link ajeno, lo nota de inmediato. */
.person { color: #fff; font-size: 15px; font-weight: 500; overflow-wrap: anywhere; }

.page {
  width: 100%;
  max-width: 640px;
  margin: 0 auto;
  padding: 32px 20px 48px;
  display: grid;
  align-content: start;
  gap: 24px;
}

.bottom {
  padding: 20px;
  text-align: center;
  color: var(--ink-3);
  font-size: 13px;
}

.intro { display: grid; gap: 12px; }

h1 {
  font-family: "Newsreader", Georgia, serif;
  font-weight: 500;
  font-size: 32px;
  line-height: 1.15;
}

.lead { color: var(--ink-2); font-size: 17px; }
.note { color: var(--ink-3); font-size: 14px; }

.flash {
  background: var(--accent-soft);
  color: var(--accent);
  border-radius: var(--radius-sm);
  padding: 12px 16px;
  font-size: 15px;
}

.flash.error { background: rgba(154, 59, 50, 0.08); color: var(--error); }

.back { color: var(--ink-2); font-size: 15px; text-decoration: none; }
.back:hover { color: var(--ink); }

/* Avance: un punto por persona, la firma de la pantalla */
.progress { display: grid; gap: 8px; }
.progress-head { display: grid; grid-template-columns: 1fr auto; font-size: 14px; color: var(--ink-2); }
.count { color: var(--ink); font-weight: 500; }

.dots { display: grid; grid-template-columns: repeat(12, 1fr); gap: 4px; }
.dots i { height: 6px; border-radius: 3px; background: var(--line); }
.dots i.on { background: var(--steel); }

.people {
  list-style: none;
  margin: 0;
  padding: 0;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}

.people li + li { border-top: 1px solid var(--line); }

.row {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 12px;
  min-height: 56px;
  padding: 0 16px;
  color: var(--ink);
  text-decoration: none;
  transition: background-color var(--fast) var(--ease);
}

a.row:hover { background: var(--accent-soft); }
.row .state { font-size: 14px; color: var(--steel); font-weight: 500; }
.row.done .name { color: var(--ink-3); }
.row.done .state { color: var(--ink-3); font-weight: 400; }

/* Formulario */
.survey { display: grid; gap: 16px; }

.quality, .open {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 20px;
  margin: 0;
}

.quality { display: grid; gap: 12px; }

legend { display: contents; }
.q-title { display: block; font-weight: 500; font-size: 17px; }
.q-desc { display: block; color: var(--ink-2); font-size: 15px; margin-top: 4px; }

.scale { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 4px; }

.opt { position: relative; display: grid; cursor: pointer; }

.opt input, .na input { position: absolute; opacity: 0; pointer-events: none; }

.opt .num {
  display: grid;
  place-items: center;
  height: 48px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  font-size: 17px;
  font-weight: 500;
  color: var(--ink-2);
  background: var(--surface);
  transition: background-color var(--fast) var(--ease), color var(--fast) var(--ease), border-color var(--fast) var(--ease);
}

.opt .txt { font-size: 12px; color: var(--ink-3); text-align: center; margin-top: 4px; line-height: 1.25; overflow-wrap: anywhere; }
.opt:hover .num { border-color: var(--accent); }
.opt input:checked + .num { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); }
.opt input:checked ~ .txt { color: var(--accent); }
.opt input:focus-visible + .num { outline: 2px solid var(--accent); outline-offset: 2px; }

.na { position: relative; justify-self: start; cursor: pointer; font-size: 14px; color: var(--ink-3); }
.na span { padding: 4px 0; border-bottom: 1px solid transparent; }
.na:hover span { color: var(--ink-2); }
.na input:checked + span { color: var(--accent); border-bottom-color: var(--accent); }
.na input:focus-visible + span { outline: 2px solid var(--accent); outline-offset: 2px; }

.open { display: grid; gap: 8px; }

textarea {
  width: 100%;
  font: inherit;
  font-size: 16px;
  color: var(--ink);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 12px;
  resize: vertical;
  background: var(--bg);
}

textarea:focus { border-color: var(--accent); outline: none; background: var(--surface); }

.primary {
  justify-self: stretch;
  height: 52px;
  border: 0;
  border-radius: 10px;
  background: var(--accent);
  color: var(--accent-ink);
  font: inherit;
  font-weight: 500;
  font-size: 17px;
  cursor: pointer;
  transition: background-color var(--fast) var(--ease), transform var(--fast) var(--ease);
}

.primary:hover { background: #0f2034; }
.primary:active { transform: scale(0.99); }

/* Teléfonos: la escala pasa a lista vertical, número y texto en la misma fila */
@media (max-width: 479px) {
  .page { padding: 24px 16px 40px; gap: 20px; }
  .logo { height: 30px; }
  h1 { font-size: 28px; }
  .quality, .open { padding: 16px; }
  .scale { grid-template-columns: minmax(0, 1fr); gap: 4px; }
  .opt { grid-template-columns: 44px minmax(0, 1fr); align-items: center; gap: 12px; }
  .opt .num { height: 44px; }
  .opt .txt { font-size: 15px; text-align: left; margin-top: 0; color: var(--ink-2); }
  .na span { display: inline-block; padding: 8px 0; }
}

@media (min-width: 600px) {
  .page { padding-top: 48px; }
  h1 { font-size: 40px; }
  .primary { justify-self: start; padding: 0 32px; }
}

fieldset { min-width: 0; }