/* ============ RESET Y BASE ============ */
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: var(--fuente-cuerpo, 'Segoe UI', sans-serif);
  background: var(--fondo);
  color: var(--texto);
  min-height: 100vh;
  padding-bottom: 40px;
  transition: background .3s, color .3s;
}
.oculto { display: none !important; }
button { cursor: pointer; font-family: inherit; }
select, input, textarea {
  font-family: inherit;
  font-size: 1rem;
  padding: 10px;
  border-radius: var(--radio, 10px);
  border: 1px solid var(--borde);
  background: var(--fondo-input);
  color: var(--texto);
}
textarea { width: 100%; min-height: 70px; resize: vertical; }

/* ============ HEADER / NAV ============ */
.app-header {
  display: flex; justify-content: space-between; align-items: center;
  padding: 18px 20px;
  background: var(--header-bg);
  color: var(--header-texto);
}
.app-header h1 { margin: 0; font-size: 1.4rem; font-family: var(--fuente-titulo, inherit); }
.btn-icono { background: none; border: none; font-size: 1.4rem; }

.nav-tabs { display: flex; justify-content: center; gap: 6px; padding: 10px; background: var(--nav-bg); }
.nav-btn {
  flex: 1; max-width: 160px;
  padding: 10px 8px; border: none; border-radius: var(--radio, 10px);
  background: var(--nav-btn-bg); color: var(--nav-btn-texto);
  font-weight: 600; font-size: 0.85rem;
}
.nav-btn.activo { background: var(--acento); color: var(--acento-texto); }

main { max-width: 640px; margin: 0 auto; padding: 16px; }

/* ============ TARJETAS Y COMPONENTES GENERALES ============ */
.tarjeta {
  background: var(--tarjeta-bg);
  border-radius: var(--radio-grande, 16px);
  padding: 18px;
  margin-bottom: 16px;
  box-shadow: var(--sombra);
  border: var(--tarjeta-borde, none);
}
.fila-selects { display: flex; gap: 8px; margin-bottom: 12px; flex-wrap: wrap; }
.fila-selects select { flex: 1; min-width: 90px; }
.fila-botones { display: flex; gap: 10px; margin-top: 12px; flex-wrap: wrap; }

.btn-principal {
  width: 100%; padding: 14px; border: none; border-radius: var(--radio-grande, 16px);
  background: var(--boton-principal-bg); color: var(--boton-principal-texto);
  font-weight: 700; font-size: 1rem; margin-bottom: 16px;
  box-shadow: var(--sombra-boton);
}
.btn-secundario {
  padding: 10px 16px; border-radius: var(--radio, 10px);
  border: 1.5px solid var(--acento); background: transparent; color: var(--acento);
  font-weight: 600;
}

.texto-versiculo { font-size: 1.25rem; line-height: 1.5; font-style: italic; }
.ref-versiculo { text-align: right; font-weight: 700; color: var(--acento); margin-top: 6px; }

.etiqueta-tema {
  display: inline-block; padding: 4px 12px; border-radius: 999px;
  background: var(--acento-suave); color: var(--acento); font-size: .8rem; font-weight: 700;
}
.cita { font-style: italic; border-left: 4px solid var(--acento); padding-left: 12px; }
.oracion { background: var(--acento-suave); padding: 12px; border-radius: var(--radio, 10px); }

.caja-nota { margin-top: 18px; border-top: 1px dashed var(--borde); padding-top: 14px; }
.caja-nota textarea { margin-bottom: 10px; }

.titulo-vista { margin-bottom: 4px; }
.subtitulo-vista { color: var(--texto-suave); margin-top: 0; margin-bottom: 16px; }

/* ============ DIARIO ============ */
.entrada-diario {
  background: var(--tarjeta-bg); border-radius: var(--radio, 10px);
  padding: 14px; margin-bottom: 12px; box-shadow: var(--sombra);
}
.entrada-header { display: flex; justify-content: space-between; margin-bottom: 6px; }
.fecha { color: var(--texto-suave); font-size: .85rem; }
.entrada-versiculo { font-style: italic; color: var(--acento); }
.btn-borrar { background: none; border: none; color: #c0392b; font-size: .8rem; margin-top: 8px; }
.vacio { color: var(--texto-suave); text-align: center; padding: 30px 0; }

/* ============ BUSCADOR ============ */
.fila-busqueda { display: flex; gap: 8px; margin-bottom: 16px; }
.fila-busqueda input { flex: 1; }
.resultado-versiculo {
  background: var(--tarjeta-bg); border-radius: var(--radio, 10px);
  padding: 12px; margin-bottom: 10px; box-shadow: var(--sombra);
}
.resultado-versiculo strong { color: var(--acento); }
.resumen-busqueda { color: var(--texto-suave); font-size: .9rem; }

/* ============ MODAL DE TEMAS ============ */
.modal {
  position: fixed; inset: 0; background: rgba(0,0,0,.5);
  display: flex; align-items: center; justify-content: center; z-index: 100;
}
.modal-contenido {
  background: var(--tarjeta-bg); padding: 24px; border-radius: var(--radio-grande, 16px);
  width: 90%; max-width: 360px; text-align: center;
}
.opciones-tema { display: flex; flex-direction: column; gap: 10px; margin: 18px 0; }
.opcion-tema {
  padding: 14px; border-radius: var(--radio, 10px); border: 2px solid var(--borde);
  background: var(--fondo-input); font-weight: 700; font-size: 1rem;
}

/* ============================================================
   TEMA 1: TIERNO — pastel, redondeado, cálido y cristiano
   ============================================================ */
:root, [data-theme="tierno"] {
  --fondo: #fff5f8;
  --texto: #4a2c3a;
  --texto-suave: #a9788c;
  --tarjeta-bg: #ffffff;
  --tarjeta-borde: 1px solid #ffe1ec;
  --header-bg: linear-gradient(135deg, #ffb6c1, #d9b8ff);
  --header-texto: #ffffff;
  --nav-bg: #fff0f5;
  --nav-btn-bg: #ffe1ec;
  --nav-btn-texto: #a9788c;
  --acento: #d6689a;
  --acento-suave: #ffe1ec;
  --acento-texto: #ffffff;
  --boton-principal-bg: linear-gradient(135deg, #ff9ec4, #d9b8ff);
  --boton-principal-texto: #ffffff;
  --borde: #ffd6e5;
  --fondo-input: #fff9fb;
  --radio: 12px;
  --radio-grande: 20px;
  --sombra: 0 4px 14px rgba(214,104,154,0.12);
  --sombra-boton: 0 6px 16px rgba(214,104,154,0.35);
  --fuente-cuerpo: 'Segoe UI', sans-serif;
  --fuente-titulo: 'Segoe UI', sans-serif;
}

/* ============================================================
   TEMA 2: CLÁSICO — serio, elegante, tipografía serif
   ============================================================ */
[data-theme="clasico"] {
  --fondo: #f4efe6;
  --texto: #2b2320;
  --texto-suave: #7a6f63;
  --tarjeta-bg: #fffdf8;
  --tarjeta-borde: 1px solid #d8cbb0;
  --header-bg: #2c2418;
  --header-texto: #e9d9ad;
  --nav-bg: #ece3d0;
  --nav-btn-bg: #e2d5b8;
  --nav-btn-texto: #4a3f2e;
  --acento: #7a2e2e;
  --acento-suave: #f1e2c9;
  --acento-texto: #fffdf8;
  --boton-principal-bg: #7a2e2e;
  --boton-principal-texto: #fff8ec;
  --borde: #c9b98f;
  --fondo-input: #fffdf8;
  --radio: 6px;
  --radio-grande: 8px;
  --sombra: 0 2px 8px rgba(43,35,32,0.15);
  --sombra-boton: 0 4px 10px rgba(122,46,46,0.4);
  --fuente-cuerpo: 'Georgia', 'Times New Roman', serif;
  --fuente-titulo: 'Georgia', serif;
}

/* ============================================================
   TEMA 3: FRUTIGER AERO — glossy, azul/verde, brillante
   ============================================================ */
[data-theme="aero"] {
  --fondo: linear-gradient(180deg, #e0f7fa 0%, #b2ebf2 40%, #e8f9f0 100%);
  --texto: #04303f;
  --texto-suave: #4f8a96;
  --tarjeta-bg: rgba(255,255,255,0.75);
  --tarjeta-borde: 1px solid rgba(255,255,255,0.9);
  --header-bg: linear-gradient(180deg, #4fc3f7, #0288d1);
  --header-texto: #ffffff;
  --nav-bg: rgba(255,255,255,0.5);
  --nav-btn-bg: rgba(255,255,255,0.6);
  --nav-btn-texto: #04303f;
  --acento: #00acc1;
  --acento-suave: rgba(0,172,193,0.15);
  --acento-texto: #ffffff;
  --boton-principal-bg: linear-gradient(180deg, #81d4fa, #0288d1);
  --boton-principal-texto: #ffffff;
  --borde: rgba(2,136,209,0.3);
  --fondo-input: rgba(255,255,255,0.85);
  --radio: 16px;
  --radio-grande: 22px;
  --sombra: 0 6px 20px rgba(2,136,209,0.15);
  --sombra-boton: 0 8px 20px rgba(2,136,209,0.45), inset 0 1px 0 rgba(255,255,255,0.6);
  --fuente-cuerpo: 'Segoe UI', sans-serif;
  --fuente-titulo: 'Trebuchet MS', sans-serif;
}
[data-theme="aero"] body { background: var(--fondo); background-attachment: fixed; }
[data-theme="aero"] .tarjeta { backdrop-filter: blur(6px); }