:root {
  --color: #2563eb;
  --fondo: #f4f5fb;
  --tarjeta: #ffffff;
  --texto: #1e293b;
  --texto-suave: #64748b;
  --borde: #e2e8f0;
  --libre: #16a34a;
  --reservada: var(--color);
  --atendida: #0ea5e9;
  --cancelada: #ef4444;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  background: var(--fondo);
  color: var(--texto);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: .8rem 1.25rem;
  background: var(--tarjeta);
  border-bottom: 1px solid var(--borde);
  position: sticky;
  top: 0;
  z-index: 10;
}

.marca { display: flex; align-items: center; gap: .55rem; font-size: 1.05rem; }
.punto {
  width: 12px; height: 12px; border-radius: 50%;
  background: var(--color, var(--color));
}
.logo-empresa {
  height: 34px;
  width: auto;
  max-width: 150px;
  object-fit: contain;
  border-radius: 6px;
}
.topbar nav { display: flex; align-items: center; gap: 1rem; }
.topbar a { color: var(--texto); text-decoration: none; font-weight: 500; }
.topbar a:hover { color: var(--color); }
.usuario { color: var(--texto-suave); font-size: .9rem; }

.contenedor {
  width: min(1100px, 100% - 2rem);
  margin: 1.5rem auto;
  flex: 1;
}

.pie {
  text-align: center;
  color: var(--texto-suave);
  font-size: .8rem;
  padding: 1rem;
}

/* Toolbar */
.cabecera-agenda h2 { margin: .9rem .2rem; font-size: 1.35rem; }
.toolbar {
  display: flex;
  align-items: center;
  gap: .55rem;
  flex-wrap: wrap;
}
input[type="date"] {
  border: 1px solid var(--borde);
  border-radius: 8px;
  padding: .45rem .6rem;
  background: var(--tarjeta);
  color: var(--texto);
  font: inherit;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: .3rem;
  border: 1px solid var(--borde);
  background: var(--tarjeta);
  color: var(--texto);
  border-radius: 8px;
  padding: .45rem .85rem;
  font: inherit;
  cursor: pointer;
  text-decoration: none;
}
.btn:hover { border-color: var(--color); color: var(--color); }
.btn-primario {
  background: var(--color);
  border-color: var(--color);
  color: #fff;
}
.btn-primario:hover { filter: brightness(1.08); color: #fff; }

.badge-sse {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  font-size: .78rem;
  color: var(--texto-suave);
  border: 1px dashed var(--borde);
  border-radius: 999px;
  padding: .28rem .7rem;
  margin-left: auto;
}
.pulso {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--libre);
  animation: latido 1.6s infinite ease-in-out;
}
.badge-sse.offline .pulso { background: var(--cancelada); animation: none; }
@keyframes latido {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: .35; transform: scale(.75); }
}

/* Rejilla de turnos */
#agenda {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(170px, 1fr));
  gap: .75rem;
}
.turno {
  background: var(--tarjeta);
  border: 1px solid var(--borde);
  border-left: 4px solid var(--libre);
  border-radius: 10px;
  padding: .7rem .8rem;
  display: flex;
  flex-direction: column;
  gap: .45rem;
}
.turno-libre     { border-left-color: var(--libre); }
.turno-reservada { border-left-color: var(--reservada); }
.turno-atendida  { border-left-color: var(--atendida); }

.hora { font-weight: 700; font-size: 1.02rem; }
.estado {
  font-size: .72rem;
  text-transform: uppercase;
  letter-spacing: .04em;
  font-weight: 600;
}
.estado-libre     { color: var(--libre); }
.estado-reservada { color: var(--reservada); }
.estado-atendida  { color: var(--atendida); }

.cliente-info { font-size: .85rem; color: var(--texto-suave); line-height: 1.35; }
.cliente-info strong { color: var(--texto); }

.acciones-turno { display: flex; gap: .4rem; flex-wrap: wrap; margin-top: auto; }
.mini-btn {
  font-size: .74rem;
  padding: .28rem .55rem;
  border-radius: 6px;
  border: 1px solid var(--borde);
  background: transparent;
  cursor: pointer;
  font-weight: 600;
}
.mini-btn:hover { border-color: currentColor; }
.mini-atender   { color: var(--atendida); }
.mini-cancelar  { color: var(--cancelada); }
.mini-liberar   { color: var(--texto-suave); }

.cerrado {
  grid-column: 1 / -1;
  text-align: center;
  color: var(--texto-suave);
  background: var(--tarjeta);
  border: 1px dashed var(--borde);
  border-radius: 12px;
  padding: 2.2rem 1rem;
}

/* Formularios y tarjetas */
.tarjeta {
  background: var(--tarjeta);
  border: 1px solid var(--borde);
  border-radius: 14px;
  padding: 1.6rem;
  max-width: 420px;
  margin: 3rem auto;
  box-shadow: 0 10px 30px rgba(15, 23, 42, .06);
}
.tarjeta-ancha { max-width: none; margin: 1.25rem 0; }
.tarjeta-banner {
  max-width: none;
  margin: 0 0 .9rem;
  padding: .7rem 1rem;
  background: #fffbeb;
  border-color: #fde68a;
  font-size: .9rem;
}
.tarjeta-error { text-align: center; }
.tarjeta-error h1 { margin: 0 0 .4rem; font-size: 2.6rem; }

.tabla { width: 100%; border-collapse: collapse; margin: 1rem 0; font-size: .92rem; }
.tabla th {
  text-align: left;
  color: var(--texto-suave);
  text-transform: uppercase;
  font-size: .72rem;
  letter-spacing: .05em;
  padding: .5rem .6rem;
  border-bottom: 2px solid var(--borde);
}
.tabla td { padding: .55rem .6rem; border-bottom: 1px solid var(--borde); vertical-align: top; }
.acciones-tabla { display: flex; gap: .4rem; }

.form-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: .9rem; align-items: end; }
.form-grid fieldset, .form-grid .dias { grid-column: 1 / -1; }

/* Formulario de edición de negocio: grid responsivo (3 -> 2 -> 1 columnas) */
.form-editar {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
  align-items: end;
  margin-top: 1rem;
}
.c-full { grid-column: 1 / -1; }
.c-2 { grid-column: span 2; }
.fila-final {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-top: 1px solid var(--borde);
  padding-top: 1rem;
}
@media (max-width: 860px) {
  .form-editar { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 560px) {
  .form-editar { grid-template-columns: 1fr; }
  .c-2 { grid-column: auto; }
}
fieldset {
  border: 1px solid var(--borde);
  border-radius: 10px;
  padding: .8rem 1rem;
  display: flex;
  gap: .8rem;
  flex-wrap: wrap;
}
fieldset legend { font-size: .78rem; color: var(--texto-suave); padding: 0 .4rem; }
.dia { flex-direction: row !important; align-items: center; gap: .35rem !important; font-weight: 400 !important; }
input[type="color"] {
  width: 100%;
  height: 2.4rem;
  padding: .15rem;
  border: 1px solid var(--borde);
  border-radius: 8px;
  background: var(--tarjeta);
}
details summary { cursor: pointer; }
.form { display: grid; gap: .9rem; margin-top: .8rem; }
.form label { display: flex; flex-direction: column; gap: .3rem; font-size: .88rem; font-weight: 600; }
.form input, .form textarea {
  border: 1px solid var(--borde);
  border-radius: 8px;
  padding: .55rem .7rem;
  font: inherit;
  font-weight: 400;
}
.form input:focus, .form textarea:focus {
  outline: 2px solid color-mix(in srgb, var(--color) 35%, transparent);
  border-color: var(--color);
}

.alerta { border-radius: 8px; padding: .65rem .8rem; font-size: .88rem; margin-top: .8rem; }
.alerta-error { background: #fef2f2; color: #b91c1c; border: 1px solid #fecaca; }
.muted { color: var(--texto-suave); font-size: .88rem; margin: .2rem 0 0; }

dialog {
  border: none;
  border-radius: 14px;
  padding: 1.5rem;
  width: min(420px, 92vw);
  box-shadow: 0 24px 60px rgba(15, 23, 42, .25);
}
dialog::backdrop { background: rgba(15, 23, 42, .45); }
.acciones-dialogo { display: flex; justify-content: flex-end; gap: .6rem; margin-top: .4rem; }
.fila-cita { display: grid; grid-template-columns: 1.4fr 1fr; gap: .8rem; }

/* Aviso de confirmación de acciones */
.aviso-flotante {
  position: fixed;
  left: 50%;
  bottom: 1.4rem;
  transform: translateX(-50%);
  max-width: min(480px, 92vw);
  padding: .75rem 1.2rem;
  border-radius: 10px;
  font-weight: 600;
  font-size: .92rem;
  z-index: 1000;
  box-shadow: 0 12px 32px rgba(15, 23, 42, .28);
  animation: aviso-entra .22s ease-out;
}
.aviso-ok {
  background: #052e16;
  color: #d1fae5;
  border-left: 4px solid var(--libre);
}
.aviso-error {
  background: #450a0a;
  color: #fecaca;
  border-left: 4px solid var(--cancelada);
}
@keyframes aviso-entra {
  from { opacity: 0; transform: translate(-50%, .6rem); }
  to   { opacity: 1; transform: translate(-50%, 0); }
}

/* Cargador de espera a pantalla completa */
#capa-cargando {
  position: fixed;
  inset: 0;
  z-index: 2000;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: .9rem;
  background: rgba(15, 23, 42, .55);
  backdrop-filter: blur(2px);
}
#capa-cargando p {
  margin: 0;
  color: #fff;
  font-weight: 600;
}
.girador {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 4px solid rgba(255, 255, 255, .25);
  border-top-color: #fff;
  animation: girar .8s linear infinite;
}
@keyframes girar { to { transform: rotate(360deg); } }

/* Código QR */
.tarjeta-centrada { max-width: 480px; text-align: center; margin-left: auto; margin-right: auto; }
.qr-contenedor {
  display: inline-block;
  padding: 1rem;
  background: #fff;
  border: 1px solid var(--borde);
  border-radius: 12px;
  margin: .6rem 0;
}
.qr-contenedor svg { display: block; width: min(280px, 70vw); height: auto; }
.qr-acciones { justify-content: center; margin-top: 1rem; }

@media (max-width: 560px) {
  #agenda { grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); }
  .badge-sse { margin-left: 0; }
}