:root {
  --bg: #f5f6f8; --surface: #ffffff; --text: #1b2230; --muted: #5b6577; --line: #dde1e8;
  --navy: #1b2a49; --gold: #b8901f; --accent: #1b3a6b;
  --ok: #1f7a4d; --ok-bg: #e3f3ea; --warn: #8a5a00; --warn-bg: #fdf0d2;
  --bad: #a52a2a; --bad-bg: #fbe4e4; --off: #4d5666; --off-bg: #e9ecf1;
  --n0: #e3eef9; --n1: #bcd6f0; --n2: #8dbbe6; --n3: #5a9bd5; --n4: #2f78bd; --n5: #1a4f8a;
  --radius: 12px;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0f1520; --surface: #172030; --text: #e8ecf3; --muted: #9aa6ba; --line: #2a3548;
    --navy: #0b1220; --gold: #d9b24a; --accent: #7fb0ff;
    --ok: #6fd0a0; --ok-bg: #12352a; --warn: #f0c36a; --warn-bg: #3a2e12;
    --bad: #ff9a9a; --bad-bg: #3d1a1a; --off: #b5bfcf; --off-bg: #263044;
    --n0: #1c2b3f; --n1: #24476d; --n2: #2f6aa3; --n3: #4a8fd0; --n4: #78b2ec; --n5: #b4d6f7;
  }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--text); line-height: 1.5;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", sans-serif; }
a { color: var(--accent); }
h1 { font-size: 1.6rem; margin: 0 0 .25rem; letter-spacing: -.01em; }
h2 { font-size: 1.05rem; margin: 0; }
small { color: var(--muted); font-weight: 400; margin-left: .4rem; }
.sub { color: var(--muted); margin: 0 0 1rem; font-size: .92rem; }

.barra { display: flex; justify-content: space-between; align-items: center; gap: 1rem;
  padding: .75rem 16px; background: var(--navy); color: #fff; }
.marca { color: #fff; text-decoration: none; font-weight: 650; display: flex; align-items: center; gap: .6rem; }
.marca-punto { width: 12px; height: 12px; border-radius: 50%; background: var(--gold); display: inline-block; }
.barra-der { display: flex; align-items: center; gap: 1rem; font-size: .9rem; }
.barra-der form { margin: 0; }
.usuario { opacity: .85; }
.enlace { background: none; border: 0; color: #fff; cursor: pointer; font: inherit; text-decoration: underline;
  text-underline-offset: 3px; padding: 0; }
.contenido { max-width: 1100px; margin: 0 auto; padding: 24px 16px 48px; }
.pie { text-align: center; color: var(--muted); font-size: .8rem; padding: 0 16px 28px; }

.aviso { padding: .7rem .9rem; border-radius: 8px; margin: 0 0 1rem; font-size: .93rem; }
.aviso-success { background: var(--ok-bg); color: var(--ok); }
.aviso-warning { background: var(--warn-bg); color: var(--warn); }
.aviso-error { background: var(--bad-bg); color: var(--bad); }
.texto-alerta { color: var(--bad); font-weight: 600; }

/* acceso */
.acceso { max-width: 400px; margin: 6vh auto 0; background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 28px 24px; }
.formulario { display: flex; flex-direction: column; gap: .4rem; }
.formulario label { font-size: .85rem; color: var(--muted); margin-top: .5rem; }
.formulario input[type=text], .formulario input[type=password] { padding: .65rem .75rem; font: inherit;
  border: 1px solid var(--line); border-radius: 8px; background: var(--bg); color: var(--text); }
.formulario input:focus-visible, .boton:focus-visible, a:focus-visible, button:focus-visible {
  outline: 3px solid var(--gold); outline-offset: 2px; }
.boton { margin-top: 1rem; padding: .7rem 1rem; border: 0; border-radius: 8px; background: var(--navy);
  color: #fff; font: inherit; font-weight: 600; cursor: pointer; }
.boton:hover { filter: brightness(1.15); }
.error-campo { color: var(--bad); font-size: .85rem; margin: .1rem 0 0; }

/* resumen */
.resumen { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px; margin: 1.2rem 0 1rem; }
@media (min-width: 720px) { .resumen { grid-template-columns: 1fr 1fr 1fr 1.6fr; } }
.dato { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 12px 14px;
  display: flex; flex-direction: column; }
.dato .num { font-size: 1.8rem; font-weight: 650; line-height: 1.1; font-variant-numeric: tabular-nums; }
.dato .num-peq { font-size: 1.3rem; }
.dato .et { color: var(--muted); font-size: .85rem; }
.dato-alerta .num { color: var(--bad); }

.leyenda { color: var(--muted); font-size: .85rem; margin: 0 0 1rem; display: flex; flex-wrap: wrap; gap: .4rem 1rem; align-items: center; }
.escala { display: inline-flex; align-items: center; gap: .3rem; }
.escala i { width: 14px; height: 14px; border-radius: 3px; display: inline-block; border: 1px solid var(--line); margin-left: .5rem; }

/* tarjetas */
.rejilla { display: grid; grid-template-columns: repeat(auto-fill, minmax(290px, 1fr)); gap: 14px; }
.tarjeta { display: flex; flex-direction: column; gap: .5rem; background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 16px; text-decoration: none; color: inherit; transition: border-color .15s, transform .15s; }
.tarjeta:hover { border-color: var(--accent); transform: translateY(-1px); }
.tarjeta header { display: flex; justify-content: space-between; align-items: flex-start; gap: .6rem; }
.tarjeta h2 { font-size: 1rem; }
.tarjeta .sub { margin: 0; }
.metricas { display: flex; gap: 1.5rem; margin-top: .2rem; }
.metricas > div { display: flex; flex-direction: column; }
.valor { font-size: 1.6rem; font-weight: 650; font-variant-numeric: tabular-nums; line-height: 1.1; }
.unidad { color: var(--muted); font-size: .78rem; }
.perfil { display: flex; gap: 3px; margin: .3rem 0; min-height: 22px; }
.perfil i { flex: 1; height: 22px; border-radius: 4px; border: 1px solid var(--line); }
.tarjeta footer { color: var(--muted); font-size: .8rem; margin-top: auto; }
.vacio { color: var(--muted); font-size: .9rem; }
i.n0 { background: var(--n0); } i.n1 { background: var(--n1); } i.n2 { background: var(--n2); }
i.n3 { background: var(--n3); } i.n4 { background: var(--n4); } i.n5 { background: var(--n5); }

.insignia { font-size: .75rem; font-weight: 600; padding: .2rem .55rem; border-radius: 999px; white-space: nowrap; }
.insignia.al_dia { background: var(--ok-bg); color: var(--ok); }
.insignia.con_retraso { background: var(--warn-bg); color: var(--warn); }
.insignia.sin_datos_recientes { background: var(--bad-bg); color: var(--bad); }
.insignia.sin_lecturas { background: var(--off-bg); color: var(--off); }

/* detalle */
.migas { margin: 0 0 .6rem; font-size: .9rem; }
.cabecera { display: flex; justify-content: space-between; align-items: flex-start; gap: 1rem; margin-bottom: .4rem; }
.periodos { display: inline-flex; border: 1px solid var(--line); border-radius: 8px; overflow: hidden; margin: .4rem 0 1rem; background: var(--surface); }
.periodos a { padding: .4rem .85rem; font-size: .88rem; text-decoration: none; color: var(--text); border-right: 1px solid var(--line); }
.periodos a:last-child { border-right: 0; }
.periodos a[aria-current] { background: var(--navy); color: #fff; font-weight: 600; }
.panel { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 16px; margin-bottom: 14px; }
.panel h2 { margin-bottom: .6rem; }
.tabla { width: 100%; border-collapse: collapse; font-variant-numeric: tabular-nums; }
.tabla th, .tabla td { text-align: left; padding: .4rem .5rem; border-bottom: 1px solid var(--line); font-size: .92rem; }
.tabla th { color: var(--muted); font-weight: 500; }
.ficha { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 12px; margin: 0; }
.ficha dt { color: var(--muted); font-size: .8rem; }
.ficha dd { margin: 0; font-weight: 600; }

/* previsión */
.tabla-ancha { overflow-x: auto; }
.tabla-prevision th, .tabla-prevision td { white-space: nowrap; }
.tabla-prevision .fila-hoy td { font-weight: 600; background: var(--bg); }
.resumen-lluvia { margin: 0 0 .8rem; }
.prob { padding: .1rem .45rem; border-radius: 999px; font-size: .85rem; font-weight: 600; }
.prob-baja { background: var(--off-bg); color: var(--off); }
.prob-media { background: var(--warn-bg); color: var(--warn); }
.prob-alta { background: #dbe8fb; color: #1a4f8a; }
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) .prob-alta { background: #1c3558; color: #9ec5f5; } }
.tiempo-hoy { margin: 0; font-size: .85rem; color: var(--muted); }

/* mapa */
.mapa { position: relative; height: 340px; overflow: hidden; border-radius: 10px; background: #c9d3d8;
  border: 1px solid var(--line); touch-action: none; cursor: grab; user-select: none; }
.mapa.grande { height: 62vh; min-height: 380px; }
.mapa.arrastrando { cursor: grabbing; }
.mapa-teselas, .mapa-marcadores { position: absolute; inset: 0; }
.mapa-teselas img { position: absolute; width: 256px; height: 256px; max-width: none; }
.marcador { position: absolute; transform: translate(-50%, -50%); min-width: 24px; height: 24px; padding: 0 4px;
  border-radius: 12px; border: 2px solid #fff; box-shadow: 0 1px 5px rgba(0,0,0,.55); color: #fff; font: 700 11px system-ui, sans-serif;
  display: flex; align-items: center; justify-content: center; text-decoration: none; cursor: pointer; }
.marcador:hover, .marcador:focus-visible { z-index: 3; transform: translate(-50%, -50%) scale(1.2); }
.m-al_dia { background: #1f7a4d; } .m-con_retraso { background: #b27300; }
.m-sin_datos_recientes { background: #a52a2a; } .m-sin_lecturas { background: #4d5666; }
.m-aviso { outline: 3px dashed #ffd24d; outline-offset: 1px; }
.mapa-attr { position: absolute; right: 0; bottom: 0; background: rgba(255,255,255,.8); color: #222; font-size: 10px; padding: 1px 6px; }
.mapa-ctl, .mapa-zoom { position: absolute; top: 8px; display: flex; gap: 4px; z-index: 4; }
.mapa-ctl { left: 8px; } .mapa-zoom { right: 8px; flex-direction: column; }
.mapa-ctl button, .mapa-zoom button { font: inherit; font-size: .8rem; background: #fff; color: #222; border: 1px solid #aab; border-radius: 6px;
  padding: .25rem .6rem; cursor: pointer; min-width: 32px; }
.mapa-ctl button[aria-pressed="true"] { background: var(--navy); color: #fff; border-color: var(--navy); }
.pie-mapa { color: var(--muted); font-size: .85rem; margin: .5rem 0 0; }
.lista-aviso { margin: .4rem 0 0; padding-left: 1.2rem; font-size: .9rem; }

/* gráficos (SVG propio) */
.grafico { position: relative; min-height: 120px; }
.grafico svg { width: 100%; height: auto; display: block; touch-action: pan-y; }
.grafico .rejilla-y { stroke: var(--line); stroke-width: 1; }
.grafico .eje-txt { fill: var(--muted); font-size: 11px; }
.grafico .linea { fill: none; stroke-width: 1.8; stroke-linejoin: round; stroke-linecap: round; }
.grafico .guia { stroke: var(--muted); stroke-width: 1; stroke-dasharray: 3 3; }
.leyenda-graf { display: flex; flex-wrap: wrap; gap: 6px; margin-top: .5rem; }
.leyenda-graf button { display: inline-flex; align-items: center; gap: .4rem; font: inherit; font-size: .8rem;
  background: var(--bg); color: var(--text); border: 1px solid var(--line); border-radius: 999px; padding: .2rem .6rem; cursor: pointer; }
.leyenda-graf button[aria-pressed="false"] { opacity: .4; text-decoration: line-through; }
.leyenda-graf .muestra { width: 10px; height: 10px; border-radius: 50%; display: inline-block; }
.tip { position: absolute; pointer-events: none; background: var(--surface); border: 1px solid var(--line);
  border-radius: 8px; padding: .5rem .65rem; font-size: .8rem; box-shadow: 0 4px 14px rgba(0,0,0,.15);
  min-width: 130px; z-index: 2; }
.tip b { display: block; margin-bottom: .25rem; }
.tip div { display: flex; justify-content: space-between; gap: .8rem; font-variant-numeric: tabular-nums; }
.tip .muestra { width: 8px; height: 8px; border-radius: 50%; display: inline-block; margin-right: .35rem; }
.sin-datos { color: var(--muted); padding: 1.5rem 0; text-align: center; }

/* --- recomendación de riego ------------------------------------------------------------------ */
.riego { --rc: var(--off); --rbg: var(--off-bg); }
.riego-regar { --rc: var(--bad); --rbg: var(--bad-bg); }
.riego-comprobar, .riego-vigilar { --rc: var(--warn); --rbg: var(--warn-bg); }
.riego-esperar_lluvia { --rc: var(--accent); --rbg: var(--n0); }
.riego-no_regar { --rc: var(--ok); --rbg: var(--ok-bg); }
.riego-marca { display: inline-block; width: .7rem; height: .7rem; border-radius: 50%; background: var(--rc); margin-right: .5rem; }
.riego-titulo { font-size: 1.15rem; font-weight: 650; margin: .6rem 0 .4rem; }
.riego-conf { font-size: .75rem; font-weight: 600; margin-left: .6rem; padding: .15rem .5rem; border-radius: 999px;
  background: var(--rbg); color: var(--rc); vertical-align: middle; }
.riego-motivos { margin: 0 0 .8rem; padding-left: 1.2rem; font-size: .93rem; }
.riego-faltan { margin: .6rem 0 .3rem; font-size: .93rem; }
.riego-linea { margin: 0; font-size: .85rem; font-weight: 600; color: var(--rc); }
.perfil i.aire { background: repeating-linear-gradient(45deg, var(--line) 0 3px, transparent 3px 6px); }
.fila-aire td { color: var(--muted); font-style: italic; }