:root {
    --primary-dark: #134a66;
    --primary-light: #11c4d4;
    --accent-beige: #bda282;
    --bg-light: #f4f9fb;
    --text-dark: #333333;
    --white: #ffffff;
}

* { box-sizing: border-box; margin: 0; padding: 0; font-family: 'Segoe UI', sans-serif; }

body { background-color: var(--bg-light); color: var(--text-dark); padding-bottom: 20px; }

/* Header & Nav */
header { background-color: var(--primary-dark); color: var(--white); padding: 1rem; text-align: center; border-bottom: 4px solid var(--primary-light); }
header h1 { font-size: 1.5rem; color: var(--accent-beige); }
nav { display: flex; background-color: var(--white); box-shadow: 0 2px 5px rgba(0,0,0,0.1); position: sticky; top: 0; z-index: 100; }
nav button { flex: 1; padding: 15px; border: none; background: none; font-size: 1rem; font-weight: bold; color: var(--primary-dark); cursor: pointer; border-bottom: 3px solid transparent; }
nav button.active { color: var(--primary-light); border-bottom: 3px solid var(--primary-light); }

/* Vistas */
.container { display: none; max-width: 800px; margin: 15px auto; padding: 15px; background: var(--white); border-radius: 8px; box-shadow: 0 2px 8px rgba(0,0,0,0.05); }
.container.active { display: block; }
h2 { color: var(--primary-dark); border-bottom: 2px solid var(--primary-light); padding-bottom: 8px; margin-bottom: 15px; font-size: 1.3rem; }

/* Formularios adaptados a móvil */
.form-section { background: #fafafa; padding: 15px; margin-bottom: 15px; border-radius: 6px; border-left: 3px solid var(--primary-light); }
.form-section h3 { font-size: 1.1rem; color: var(--primary-dark); margin-bottom: 10px; }
.form-grid { display: grid; grid-template-columns: 1fr; gap: 10px; }
@media (min-width: 600px) { .form-grid { grid-template-columns: 1fr 1fr; } .full-width { grid-column: span 2; } }

.form-group { display: flex; flex-direction: column; gap: 5px; }
label { font-size: 0.85rem; font-weight: 600; color: var(--primary-dark); }
input[type="text"], input[type="number"], input[type="date"], input[type="tel"] { padding: 12px; border: 1px solid #ccc; border-radius: 5px; font-size: 1rem; width: 100%; }
.check-inline { display: flex; align-items: center; gap: 8px; font-size: 0.9rem; padding: 5px 0; }
.checkbox-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; font-size: 0.9rem; }
@media (max-width: 400px) { .checkbox-grid { grid-template-columns: 1fr; } }

input[type="checkbox"] { width: 18px; height: 18px; accent-color: var(--primary-light); }

.btn-submit, .btn-back { background-color: var(--primary-dark); color: var(--white); border: none; padding: 15px; font-size: 1.1rem; font-weight: bold; border-radius: 6px; width: 100%; margin-top: 10px; cursor: pointer; }
.btn-back { background-color: var(--accent-beige); color: var(--primary-dark); margin-bottom: 15px; width: auto; padding: 10px 20px; }

/* Buscador y Tarjetas de Paciente */
.search-bar input { padding: 15px; width: 100%; font-size: 1rem; border: 2px solid var(--primary-light); border-radius: 6px; margin-bottom: 15px; }
.lista-pacientes { display: flex; flex-direction: column; gap: 10px; }
.paciente-card { background: var(--bg-light); border: 1px solid #e1e1e1; padding: 15px; border-radius: 6px; display: flex; justify-content: space-between; align-items: center; }
.paciente-info strong { display: block; color: var(--primary-dark); font-size: 1.1rem; }
.paciente-info span { font-size: 0.85rem; color: #666; }
.btn-ver { background: var(--primary-light); color: var(--white); border: none; padding: 10px 15px; border-radius: 4px; font-weight: bold; cursor: pointer; }

/* Detalle Ficha en Pantalla */
.detalle-seccion { margin-bottom: 20px; }
.detalle-seccion h4 { background: var(--primary-dark); color: white; padding: 8px; border-radius: 4px; margin-bottom: 10px; }
.detalle-grid { display: grid; grid-template-columns: 1fr; gap: 8px; font-size: 0.95rem; }
.detalle-grid div { background: #f9f9f9; padding: 8px; border-radius: 4px; border: 1px solid #eee; }
.detalle-grid b { color: var(--primary-dark); }