:root {
  --bg: #F3F6F4; --card: #ffffff; --text: #0E1A1F; --muted: #5b6b68; --line: #dde5e4;
  --brand: #0E7A5C; --brand-2: #0B5E47; --brand-soft: #E3F7EF;
  --ok: #15803d; --warn: #b45309; --err: #b91c1c; --info: #1d4ed8;
  --radius: 14px; --shadow: 0 1px 2px rgba(0,0,0,.05), 0 4px 14px rgba(0,0,0,.05);
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0E1A1F; --card: #16201e; --text: #e6eeec; --muted: #9aaba8; --line: #26332f;
    --brand: #3CCB9A; --brand-2: #7FDDBB; --brand-soft: #133A30;
    --ok: #4ade80; --warn: #fbbf24; --err: #f87171; --info: #93c5fd;
    --shadow: none; color-scheme: dark;
  }
}
* { box-sizing: border-box; }
html, body { margin: 0; }
body {
  font: 16px/1.45 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  background: var(--bg); color: var(--text); padding-bottom: 76px;
}
.hidden { display: none !important; }
h1 { font-size: 1.35rem; margin: .2rem 0 1rem; }
h2 { font-size: 1.1rem; margin: 1.4rem 0 .6rem; }
h3 { font-size: 1rem; margin: 0 0 .25rem; }
p { margin: .3rem 0; }
.muted { color: var(--muted); font-size: .9rem; }
a { color: var(--brand); }

.topbar {
  position: sticky; top: 0; z-index: 10; display: flex; align-items: center; justify-content: space-between;
  padding: 10px 16px; background: var(--card); border-bottom: 1px solid var(--line);
}
.brand { display: flex; gap: 8px; align-items: center; font-weight: 700; color: var(--brand); }
main { max-width: 820px; margin: 0 auto; padding: 16px; }

.bottomnav {
  position: fixed; bottom: 0; left: 0; right: 0; z-index: 10; display: flex; justify-content: space-around;
  background: var(--card); border-top: 1px solid var(--line); padding: 6px 4px calc(6px + env(safe-area-inset-bottom));
}
.bottomnav a {
  flex: 1; text-align: center; text-decoration: none; color: var(--muted); font-size: .72rem;
  display: flex; flex-direction: column; align-items: center; padding: 4px 0; border-radius: 10px;
}
.bottomnav a .ico { font-size: 1.25rem; line-height: 1.3; }
.bottomnav a.active { color: var(--brand); background: var(--brand-soft); font-weight: 600; }

.card {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 14px 16px; margin-bottom: 12px; box-shadow: var(--shadow);
}
.card.click { cursor: pointer; }
.card.click:hover { border-color: var(--brand); }
.row { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.row.between { justify-content: space-between; }
.grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
@media (max-width: 520px) { .grid2 { grid-template-columns: 1fr; } }

label { display: block; font-size: .85rem; color: var(--muted); margin: .6rem 0 .2rem; }
input, select, textarea {
  width: 100%; padding: 10px 12px; font: inherit; color: var(--text); background: var(--bg);
  border: 1px solid var(--line); border-radius: 10px;
}
input:focus, select:focus, textarea:focus { outline: 2px solid var(--brand); outline-offset: 0; }
input[type=checkbox], input[type=radio] { width: auto; padding: 0; border: 0; box-shadow: none; accent-color: var(--brand); display: inline-block; margin: 0 6px 0 0; vertical-align: middle; }
textarea { min-height: 70px; resize: vertical; }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px; padding: 10px 16px;
  font: inherit; font-weight: 600; border-radius: 10px; border: 1px solid var(--brand); cursor: pointer;
  background: var(--brand); color: #fff; text-decoration: none;
}
@media (prefers-color-scheme: dark) { .btn { color: #042f2e; } }
.btn:hover { background: var(--brand-2); }
.btn.sec { background: transparent; color: var(--brand); }
.btn.sm { padding: 6px 10px; font-size: .85rem; }
.btn.danger { background: transparent; color: var(--err); border-color: var(--err); }
.btn.block { width: 100%; }
.btn:disabled { opacity: .5; cursor: default; }
.link { background: none; border: 0; color: var(--brand); font: inherit; cursor: pointer; padding: 4px; }

.chip {
  display: inline-block; padding: 2px 10px; border-radius: 999px; font-size: .78rem; font-weight: 600;
  background: var(--brand-soft); color: var(--brand-2);
}
.chip.ok { background: color-mix(in srgb, var(--ok) 15%, transparent); color: var(--ok); }
.chip.warn { background: color-mix(in srgb, var(--warn) 15%, transparent); color: var(--warn); }
.chip.err { background: color-mix(in srgb, var(--err) 15%, transparent); color: var(--err); }
.chip.gray { background: var(--line); color: var(--muted); }

.tabs { display: flex; gap: 6px; margin-bottom: 12px; overflow-x: auto; }
.tabs button {
  flex: none; padding: 8px 14px; border-radius: 999px; border: 1px solid var(--line); background: var(--card);
  color: var(--text); font: inherit; cursor: pointer;
}
.tabs button.active { background: var(--brand); color: #fff; border-color: var(--brand); }

.slots { display: grid; grid-template-columns: repeat(auto-fill, minmax(78px, 1fr)); gap: 8px; margin-top: 8px; }
.slots button {
  padding: 8px 4px; border-radius: 10px; border: 1px solid var(--line); background: var(--bg); color: var(--text);
  font: inherit; cursor: pointer;
}
.slots button.sel { background: var(--brand); color: #fff; border-color: var(--brand); }

.chat { display: flex; flex-direction: column; gap: 8px; max-height: 340px; overflow-y: auto; padding: 4px 0; }
.msg { max-width: 85%; padding: 8px 12px; border-radius: 14px; white-space: pre-wrap; }
.msg.bot { background: var(--bg); border: 1px solid var(--line); align-self: flex-start; }
.msg.yo { background: var(--brand); color: #fff; align-self: flex-end; }
@media (prefers-color-scheme: dark) { .msg.yo { color: #042f2e; } }
.sugerencias { display: flex; gap: 6px; flex-wrap: wrap; margin: 6px 0; }

.banner {
  max-width: 820px; margin: 10px auto 0; padding: 12px 16px; border-radius: var(--radius);
  background: color-mix(in srgb, var(--warn) 14%, var(--card)); border: 1px solid var(--warn);
}
.toast {
  position: fixed; left: 50%; bottom: 90px; transform: translateX(-50%); z-index: 50; max-width: 90vw;
  background: var(--text); color: var(--bg); padding: 10px 16px; border-radius: 10px; box-shadow: var(--shadow);
}
dialog {
  border: 0; border-radius: var(--radius); padding: 18px; width: min(520px, calc(100vw - 32px));
  background: var(--card); color: var(--text);
}
dialog::backdrop { background: rgba(0,0,0,.4); }
.auth { max-width: 420px; margin: 5vh auto; }
.empty { text-align: center; color: var(--muted); padding: 24px 8px; }
.toma { display: flex; justify-content: space-between; align-items: center; gap: 8px; padding: 8px 0; border-top: 1px solid var(--line); }
.toma:first-child { border-top: 0; }

/* botón flotante de ayuda (chat con el asistente o WhatsApp) */
.fab-ayuda { position: fixed; right: 16px; bottom: 84px; z-index: 20; display: inline-flex; align-items: center; gap: 6px;
  padding: 12px 16px; border: 0; border-radius: 999px; background: var(--brand); color: #fff; font: inherit; font-weight: 700;
  box-shadow: 0 8px 24px rgba(0, 0, 0, .22); cursor: pointer; }
.fab-ayuda:focus-visible { outline: 3px solid var(--brand); outline-offset: 3px; }
@media (prefers-color-scheme: dark) { .fab-ayuda { color: #042f2e; } }
@media (max-width: 420px) { .fab-ayuda span { display: none; } .fab-ayuda { padding: 14px; } }

/* aviso de cierre de sesión por inactividad */
.aviso-inactividad { position: fixed; inset: 0; z-index: 200; display: grid; place-items: center; padding: 16px;
  background: rgba(14, 26, 31, .55); }
.aviso-inactividad .card { max-width: 380px; width: 100%; text-align: center; }

/* aviso (toast) en la capa superior: por encima de las ventanas abiertas */
.toast[popover] { inset: auto auto 90px 50%; margin: 0; border: 0; overflow: visible; }

/* cuestionarios de tu médico (IPSS y diario miccional) */
.cuest-preg { display: block; margin: 10px 0; font-size: 14px; }
.cuest-preg select { display: block; width: 100%; margin-top: 4px; }
.cuest-mini { font-size: 13px; display: inline-flex; align-items: center; gap: 6px; }
.cuest-mini input[type=time] { width: auto; }
.cuest-nueva { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; margin-top: 10px; align-items: center; }
.cuest-nueva input[type=checkbox] { width: auto; }
.cuest-lista { max-height: 220px; overflow: auto; font-size: 13px; border-top: 1px solid var(--line); }
.cuest-lista .row { padding: 4px 0; border-bottom: 1px solid var(--line); }

/* estrellas de las reseñas */
.estrellas { color: #F5A524; letter-spacing: 1px; }