/* ==========================================================================
   Tareas · Óptica Infantil — hoja de estilos
   Diseño: superficies cálidas, tipografía precisa, foco en móvil primero.
   Modo claro por defecto; oscuro automático si el celular lo pide.
   ========================================================================== */

:root {
  color-scheme: light dark;

  /* superficies */
  --bg: #f6f4f1;
  --bg-grad: radial-gradient(1200px 500px at 50% -180px, #fff6f0 0%, rgba(255, 246, 240, 0) 70%);
  --panel: #ffffff;
  --panel-2: #fbfaf8;
  --line: #e6e1da;
  --line-strong: #d8d2c9;

  /* texto */
  --text: #1b1917;
  --text-soft: #44403c;
  --muted: #79716b;

  /* marca */
  --accent: #dd5a2c;
  --accent-hover: #c44a20;
  --accent-soft: #fdeee7;

  /* estados */
  --ok: #15803d;
  --ok-soft: #e8f6ec;
  --warn: #b45309;
  --warn-soft: #fdf3e3;
  --danger: #b91c1c;
  --danger-soft: #fdeaea;
  --info: #1d4ed8;
  --info-soft: #eef2ff;

  --radius: 14px;
  --radius-sm: 10px;
  --shadow-1: 0 1px 2px rgba(28, 22, 16, .05), 0 1px 3px rgba(28, 22, 16, .04);
  --shadow-2: 0 2px 4px rgba(28, 22, 16, .05), 0 8px 24px rgba(28, 22, 16, .07);
  --ring: 0 0 0 3px rgba(221, 90, 44, .28);
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, Roboto, "Helvetica Neue", Arial, sans-serif;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0e1116;
    --bg-grad: radial-gradient(1000px 480px at 50% -200px, #1c2230 0%, rgba(28, 34, 48, 0) 70%);
    --panel: #151a22;
    --panel-2: #1a212b;
    --line: #262e3a;
    --line-strong: #34404f;
    --text: #e9edf3;
    --text-soft: #cbd3de;
    --muted: #98a2b3;
    --accent: #ff7a4d;
    --accent-hover: #ff9166;
    --accent-soft: #2a1a14;
    --ok: #4ade80;
    --ok-soft: #12251a;
    --warn: #fbbf24;
    --warn-soft: #2a2011;
    --danger: #f87171;
    --danger-soft: #2a1414;
    --info: #93b4ff;
    --info-soft: #141c2e;
    --shadow-1: 0 1px 2px rgba(0, 0, 0, .4);
    --shadow-2: 0 8px 28px rgba(0, 0, 0, .45);
    --ring: 0 0 0 3px rgba(255, 122, 77, .3);
  }
}

* { box-sizing: border-box; }

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

body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg-grad), var(--bg);
  background-attachment: fixed;
  color: var(--text);
  font: 15px/1.55 var(--font);
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); }

/* ---------------------------------------------------------------- topbar */
.topbar {
  position: sticky; top: 0; z-index: 20;
  display: flex; align-items: center; justify-content: space-between; gap: 10px;
  padding: 10px max(14px, env(safe-area-inset-left)) 10px max(14px, env(safe-area-inset-left));
  background: var(--panel);
  background: color-mix(in srgb, var(--panel) 88%, transparent);
  backdrop-filter: saturate(160%) blur(12px);
  -webkit-backdrop-filter: saturate(160%) blur(12px);
  border-bottom: 1px solid var(--line);
}
.brand {
  display: inline-flex; align-items: center; gap: 8px;
  color: var(--text); font-weight: 700; font-size: 16px; letter-spacing: -.01em;
  text-decoration: none; white-space: nowrap;
}
.brand .dot { color: var(--accent); }
.topbar nav { display: flex; gap: 6px; flex-wrap: wrap; justify-content: flex-end; }

.wrap { max-width: 1180px; margin: 0 auto; padding: 18px max(14px, env(safe-area-inset-left)) 48px; }

/* ---------------------------------------------------------------- títulos */
h1 { font-size: 22px; line-height: 1.25; letter-spacing: -.02em; margin: 4px 0 4px; }
h2 {
  font-size: 12px; text-transform: uppercase; letter-spacing: .08em;
  color: var(--muted); font-weight: 650; margin: 0;
}
.sub { color: var(--muted); font-size: 14px; margin: 0 0 18px; }
.page-head { margin-bottom: 4px; }
.page-head .sub { margin-bottom: 16px; }
.muted { color: var(--muted); font-size: 13px; }

/* ---------------------------------------------------------------- botones */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  min-height: 38px; padding: 0 13px;
  border-radius: 10px; border: 1px solid var(--line-strong);
  background: var(--panel); color: var(--text-soft);
  font: inherit; font-size: 14px; font-weight: 550;
  text-decoration: none; cursor: pointer;
  transition: background .15s ease, border-color .15s ease, color .15s ease, transform .06s ease;
}
.btn:hover { border-color: var(--accent); color: var(--text); background: var(--accent-soft); }
.btn:active { transform: translateY(1px); }
.btn:focus-visible { outline: none; box-shadow: var(--ring); }

.btn-primary {
  background: var(--accent); border-color: var(--accent); color: #fff;
  box-shadow: var(--shadow-1);
}
.btn-primary:hover { background: var(--accent-hover); border-color: var(--accent-hover); color: #fff; }

.btn-danger { background: transparent; border-color: var(--line-strong); border-color: color-mix(in srgb, var(--danger) 45%, var(--line)); color: var(--danger); }
.btn-danger:hover { background: var(--danger-soft); border-color: var(--danger); color: var(--danger); }

.btn-ghost { background: transparent; border-color: transparent; color: var(--muted); min-height: 36px; }
.btn-ghost:hover { background: var(--panel-2); border-color: var(--line); color: var(--text); }

.btn-mini { min-height: 32px; padding: 0 10px; font-size: 12.5px; border-radius: 8px; }

/* ---------------------------------------------------------------- login */
.center-card {
  max-width: 430px; margin: 7vh auto;
  background: var(--panel); border: 1px solid var(--line);
  border-radius: 18px; padding: 28px 24px;
  box-shadow: var(--shadow-2);
}
.center-card h1 { text-align: center; font-size: 21px; margin-bottom: 6px; }
.center-card > .muted { text-align: center; display: block; margin-bottom: 18px; }
.center-note { text-align: center; margin-top: 18px; }
.stack-login { display: flex; flex-direction: column; gap: 14px; }
.stack-login .btn { margin-top: 4px; }

.alert {
  background: var(--danger-soft); border: 1px solid var(--line);
  border-color: color-mix(in srgb, var(--danger) 40%, var(--line));
  color: var(--danger); padding: 10px 12px; border-radius: 10px; font-size: 13.5px; margin: 0 0 6px;
}

.people-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-top: 18px; }
.person-btn {
  width: 100%; min-height: 62px; padding: 10px; border-radius: 12px; cursor: pointer;
  background: var(--panel-2); border: 1px solid var(--line); color: var(--text);
  display: flex; flex-direction: column; gap: 2px; align-items: center; justify-content: center;
  font: inherit;
}
.person-btn:hover { border-color: var(--accent); background: var(--accent-soft); }
.person-btn:focus-visible { outline: none; box-shadow: var(--ring); }
.person-btn.active { border-color: var(--accent); background: var(--accent-soft); }
.person-btn strong { font-weight: 650; font-size: 15px; }
.person-btn .role { color: var(--muted); font-size: 11.5px; }

/* ---------------------------------------------------------------- métricas */
.stats {
  display: grid; gap: 8px; margin-bottom: 16px;
  grid-template-columns: repeat(5, minmax(0, 1fr));
}
.stat {
  background: var(--panel); border: 1px solid var(--line); border-radius: 12px;
  padding: 10px 12px; box-shadow: var(--shadow-1); text-decoration: none; color: inherit;
  display: flex; flex-direction: column; gap: 2px; min-width: 0;
}
.stat:hover { border-color: var(--line-strong); }
.stat .label { font-size: 11px; text-transform: uppercase; letter-spacing: .06em; color: var(--muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.stat .value { font-size: 20px; font-weight: 700; letter-spacing: -.02em; line-height: 1.2; }
.stat.danger .value { color: var(--danger); }
.stat.warn .value { color: var(--warn); }
.stat.ok .value { color: var(--ok); }
.stat.info .value { color: var(--info); }
.stat a { color: inherit; text-decoration: none; }

/* ---------------------------------------------------------------- filtros */
.filters {
  display: flex; gap: 8px; flex-wrap: wrap; align-items: center;
  background: var(--panel); border: 1px solid var(--line); border-radius: 12px;
  padding: 10px; margin-bottom: 18px; box-shadow: var(--shadow-1);
}
.filters select { width: auto; min-width: 130px; }
.check {
  display: inline-flex; align-items: center; gap: 7px;
  font-size: 13px; color: var(--muted); padding: 6px 8px; border-radius: 8px;
  border: 1px solid transparent; cursor: pointer;
}
.check:hover { border-color: var(--line); background: var(--panel-2); }
.check input { width: 17px; height: 17px; accent-color: var(--accent); }

input, select, textarea {
  background: var(--panel-2); color: var(--text);
  border: 1px solid var(--line-strong); border-radius: 10px;
  padding: 10px 12px; font: inherit; font-size: 15px; width: 100%;
  min-height: 44px;
}
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--accent); box-shadow: var(--ring); }
textarea { min-height: 120px; resize: vertical; line-height: 1.5; }
input:disabled, select:disabled, textarea:disabled {
  background: var(--panel); color: var(--text-soft); border-style: dashed;
  cursor: not-allowed; opacity: .85;
}
select { appearance: none; padding-right: 34px;
  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;
}

/* ---------------------------------------------------------------- tablero */
.board { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; align-items: start; }
.col {
  background: var(--panel);
  background: color-mix(in srgb, var(--panel) 60%, var(--bg));
  border: 1px solid var(--line); border-radius: var(--radius);
  padding: 10px; min-height: 80px;
}
.col > h2 {
  display: flex; align-items: center; justify-content: space-between; gap: 8px;
  padding: 4px 4px 10px; position: sticky; top: 58px; z-index: 5;
  background: var(--bg);
  background: color-mix(in srgb, var(--panel) 70%, var(--bg));
  border-radius: 8px;
}
.col > h2 .count {
  font-size: 11px; font-weight: 700; letter-spacing: 0; text-transform: none;
  background: var(--panel); border: 1px solid var(--line);
  color: var(--text-soft); padding: 1px 8px; border-radius: 999px;
}
.col-completada { opacity: .85; }
.col-respondida > h2 { color: var(--warn); }
.col-respondida .card { border-left-color: var(--warn); }
.answer-box {
  border: 1px solid var(--line); border-left: 3px solid var(--warn);
  background: color-mix(in srgb, var(--warn-soft) 45%, var(--panel));
  border-radius: var(--radius-sm); padding: 11px 13px; margin: 0 0 16px;
}
.answer-box .who { font-size: 12px; color: var(--muted); margin-bottom: 5px; }
.answer-box > p { margin: 0; white-space: pre-wrap; }
.empty { color: var(--muted); text-align: center; margin: 10px 0; font-size: 13px; }

.card {
  background: var(--panel); border: 1px solid var(--line);
  border-left: 3px solid var(--line-strong);
  border-radius: var(--radius-sm); padding: 11px 12px; margin-bottom: 10px;
  box-shadow: var(--shadow-1);
  transition: box-shadow .15s ease, transform .12s ease, border-color .15s ease;
}
.card:hover { box-shadow: var(--shadow-2); transform: translateY(-1px); }
.card.prio-alta { border-left-color: var(--danger); }
.card.prio-media { border-left-color: var(--warn); }
.card.prio-baja { border-left-color: var(--ok); }

.card-top { display: flex; gap: 6px; flex-wrap: wrap; margin-bottom: 7px; }
.badge {
  font-size: 10.5px; font-weight: 600; letter-spacing: .02em;
  padding: 2px 8px; border-radius: 999px; border: 1px solid var(--line);
  color: var(--muted); background: var(--panel-2); white-space: nowrap;
}
.badge-comercial { color: var(--info); border-color: var(--line-strong); border-color: color-mix(in srgb, var(--info) 28%, var(--line)); background: var(--info-soft); }
.badge-clinica { color: #7c3aed; border-color: #ddd6fe; background: #f5f3ff; }
.badge-administracion { color: var(--warn); border-color: var(--line-strong); border-color: color-mix(in srgb, var(--warn) 30%, var(--line)); background: var(--warn-soft); }
.badge-palta { color: var(--danger); border-color: var(--line-strong); border-color: color-mix(in srgb, var(--danger) 28%, var(--line)); background: var(--danger-soft); }
.badge-pmedia { color: var(--warn); border-color: var(--line-strong); border-color: color-mix(in srgb, var(--warn) 28%, var(--line)); background: var(--warn-soft); }
.badge-pbaja { color: var(--ok); border-color: var(--line-strong); border-color: color-mix(in srgb, var(--ok) 28%, var(--line)); background: var(--ok-soft); }

@media (prefers-color-scheme: dark) {
  .badge-clinica { color: #c4b5fd; border-color: #4c1d95; background: #1e1b3a; }
}

.card-title {
  display: block; color: var(--text); font-weight: 650; font-size: 14.5px;
  line-height: 1.35; letter-spacing: -.01em; text-decoration: none; margin-bottom: 7px;
  overflow-wrap: anywhere;
}
.card-title:hover { color: var(--accent); }

.card-meta { display: flex; flex-wrap: wrap; gap: 4px 10px; font-size: 12px; color: var(--muted); }
.card-meta > span { white-space: nowrap; }
.card-meta .overdue { color: var(--danger); font-weight: 650; }

.card-notes {
  margin: 9px 0 0; font-size: 12.5px; line-height: 1.45; color: var(--text-soft);
  background: var(--panel-2); border-left: 2px solid var(--line-strong);
  padding: 7px 9px; border-radius: 6px; white-space: pre-wrap; overflow-wrap: anywhere;
}
.card-actions { display: flex; gap: 6px; margin-top: 10px; flex-wrap: wrap; }
.card-actions form { margin: 0; }

/* ---------------------------------------------------------------- formularios */
.stack { display: flex; flex-direction: column; gap: 16px; max-width: 640px; }
.stack > label { display: flex; flex-direction: column; gap: 6px; font-size: 12.5px; font-weight: 600;
  letter-spacing: .03em; text-transform: uppercase; color: var(--muted); }
.stack label input, .stack label select, .stack label textarea { font-weight: 400; text-transform: none; letter-spacing: normal; }
.row2 { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; align-items: end; }
.form-actions { display: flex; gap: 10px; margin-top: 6px; flex-wrap: wrap; }
.form-actions .btn { min-height: 44px; padding: 0 18px; }
.help { font-size: 12px; color: var(--muted); text-transform: none; letter-spacing: normal; font-weight: 400; }
.task-meta-box { margin-top: 30px; padding-top: 18px; border-top: 1px solid var(--line); max-width: 640px; }
.section-title {
  font-size: 12px; text-transform: uppercase; letter-spacing: .08em; color: var(--muted);
  font-weight: 650; margin: 4px 0 -6px;
}

/* ------------------------------------------------------------------ respuesta/verificación */
.req-box {
  background: var(--panel-2); border: 1px solid var(--line); border-radius: 12px;
  padding: 10px 12px;
}
.req-box .check { padding: 0; border: 0; }
.req-box .check:hover { background: transparent; }
.req-box input[type="checkbox"] { margin-top: 3px; }
.answer-box {
  margin-top: 18px; padding: 14px; border-radius: 12px;
  background: var(--panel-2); border: 1px solid var(--line); max-width: 640px;
}
.answer-box h3 { margin: 0 0 6px; font-size: 14px; }

/* ------------------------------------------------------------------ móvil */
@media (max-width: 900px) {
  .stats { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .stats .stat:last-child { grid-column: span 2; }
  .board { grid-template-columns: 1fr; gap: 12px; }
  .col > h2 { position: static; }
  .row2 { grid-template-columns: 1fr; }
  .people-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 520px) {
  h1 { font-size: 20px; }
  .wrap { padding-left: 12px; padding-right: 12px; }
  .topbar { padding: 8px 12px; }
  .brand { font-size: 15px; }
  .topbar nav .btn { min-height: 34px; padding: 0 9px; font-size: 13px; }
  .center-card { margin: 4vh auto; padding: 22px 18px; border-radius: 16px; }
  .filters { flex-direction: column; align-items: stretch; }
  .filters select { width: 100%; }
  .card-actions .btn, .card-actions form { flex: 1 1 auto; }
  .card-actions form .btn { width: 100%; }
  .card-meta { font-size: 11.5px; }
}

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