/* =========================================================
   styles.css - Diseño Final Rhino POS (Sidebar y Dark Mode)
   ========================================================= */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');
@import url('https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.4.0/css/all.min.css');

:root {
    --primary: #2563eb;
    --primary-hover: #1d4ed8;
    --bg: #f8fafc;
    --surface: #ffffff;
    --surface-hover: #f1f5f9;
    --text: #1e293b;
    --text-muted: #64748b;
    --border: #e2e8f0;
    --danger: #ef4444;
    --danger-hover: #dc2626;
    --success: #22c55e;
    --warning: #f59e0b;
    --info: #0ea5e9;
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --sidebar-w: 260px;
}

/* Modo Oscuro */
[data-theme="dark"] {
    --bg: #0f172a;
    --surface: #1e293b;
    --surface-hover: #334155;
    --text: #f8fafc;
    --text-muted: #94a3b8;
    --border: #334155;
    --shadow-sm: 0 4px 6px -1px rgba(0,0,0,0.5);
}

body { font-family: 'Inter', sans-serif; margin: 0; background-color: var(--bg); color: var(--text); transition: background-color 0.3s, color 0.3s; }

/* ================= Menú Lateral y Layout ================= */
.app-layout { display: flex; height: 100vh; overflow: hidden; }
.sidebar { width: var(--sidebar-w); background: var(--surface); border-right: 1px solid var(--border); display: flex; flex-direction: column; transition: all 0.3s; z-index: 100; }
.sidebar-header { padding: 20px; border-bottom: 1px solid var(--border); display: flex; align-items: center; gap: 15px; }
.avatar { width: 40px; height: 40px; background: var(--primary); color: white; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: bold; }
.sidebar-menu { flex: 1; overflow-y: auto; padding: 15px 0; }
.menu-item { display: flex; align-items: center; gap: 15px; padding: 12px 25px; color: var(--text-muted); text-decoration: none; font-weight: 500; transition: all 0.2s; border-left: 3px solid transparent; }
.menu-item:hover, .menu-item.active { background: var(--surface-hover); color: var(--primary); border-left-color: var(--primary); }
.menu-item i { width: 20px; text-align: center; font-size: 1.1rem; }
.sidebar-footer { padding: 15px 25px; border-top: 1px solid var(--border); display: flex; justify-content: space-between; align-items: center;}
.theme-toggle { background: transparent; border: none; color: var(--text-muted); cursor: pointer; font-size: 1.2rem; }

/* Contenido Principal y Navbar Clásica */
.main-content { flex: 1; display: flex; flex-direction: column; overflow-y: auto; background: var(--bg); }
.topbar { background: var(--primary); color: white; padding: 10px 20px; text-align: center; font-weight: 500; font-size: 0.9rem; }
.dashboard-container { padding: 30px; max-width: 1200px; margin: 0 auto; width: 100%; box-sizing: border-box; }
.navbar { background: var(--surface); padding: 15px 30px; border-bottom: 1px solid var(--border); display: flex; justify-content: space-between; align-items: center; box-shadow: var(--shadow-sm); position: sticky; top: 0; z-index: 100; }
.navbar-links a { margin-right: 20px; text-decoration: none; color: var(--text-muted); font-weight: 600; transition: color 0.2s; }
.navbar-links a:hover { color: var(--primary); }
.navbar-links a.logout { color: var(--danger); margin-right: 0; }

/* ================= Tarjetas y Dashboard ================= */
.section-title { font-size: 1rem; color: var(--text-muted); margin: 30px 0 15px 0; font-weight: 600; }
.grid-cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 20px; }
.dash-card { background: var(--surface); border: 1px solid var(--border); border-radius: 8px; padding: 20px; display: flex; align-items: center; gap: 15px; text-decoration: none; color: var(--text); transition: all 0.2s; box-shadow: var(--shadow-sm); cursor: pointer; }
.dash-card:hover { transform: translateY(-3px); border-color: var(--primary); box-shadow: 0 10px 15px -3px rgba(0,0,0,0.1); }
.card-icon { width: 45px; height: 45px; border-radius: 8px; display: flex; align-items: center; justify-content: center; font-size: 1.2rem; }
.card-icon.blue { background: rgba(37,99,235,0.1); color: var(--primary); }
.card-icon.green { background: rgba(34,197,94,0.1); color: var(--success); }
.card-icon.orange { background: rgba(245,158,11,0.1); color: var(--warning); }
.dash-card h4 { margin: 0 0 5px 0; font-size: 1rem; }
.dash-card p { margin: 0; font-size: 0.8rem; color: var(--text-muted); }
.card-favorito { background: var(--primary); color: white; border: none; }
.card-favorito h4, .card-favorito p, .card-favorito .card-icon { color: white; }
.card-favorito .card-icon { background: rgba(255,255,255,0.2); }

/* Antiguos Contenedores (Para páginas sin Sidebar) */
.contenedor { max-width: 1000px; margin: 30px auto; background: var(--surface); padding: 30px; border-radius: 12px; box-shadow: var(--shadow-md); }
.card { background: var(--surface); padding: 24px; border-radius: 12px; box-shadow: var(--shadow-md); transition: transform 0.2s; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.resumen-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 20px; margin-bottom: 30px; }

/* ================= Formularios y Botones ================= */
.form-group { margin-bottom: 1.2rem; }
label { display: block; font-weight: 500; margin-bottom: 0.5rem; color: var(--text); }
input[type="text"], input[type="number"], input[type="password"], input[type="date"], select { width: 100%; padding: 12px 16px; font-size: 1rem; font-family: 'Inter', sans-serif; border: 1px solid var(--border); border-radius: 8px; background: var(--surface); color: var(--text); box-sizing: border-box; transition: all 0.2s ease; }
input:focus, select:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15); }
input:disabled { background-color: var(--surface-hover); cursor: not-allowed; }

button, .btn { padding: 12px 20px; border: none; border-radius: 8px; font-size: 1rem; font-weight: 600; cursor: pointer; transition: all 0.2s ease; font-family: 'Inter', sans-serif; }
.btn-primary { background: var(--primary); color: white; }
.btn-primary:hover:not(:disabled) { background: var(--primary-hover); transform: translateY(-1px); }
.btn-primary:disabled { background: #94a3b8; cursor: not-allowed; }
.btn-danger { background: var(--danger); color: white; }
.btn-danger:hover { background: var(--danger-hover); }
.btn-success { background: var(--success); color: white; }
.btn-warning { background: var(--warning); color: #000; }
.btn-info { background: var(--info); color: white; }
.btn-secundario { background: #64748b; color: white; }

/* ================= Tablas y Modales ================= */
table { width: 100%; border-collapse: collapse; margin-top: 10px; }
th, td { text-align: left; padding: 14px 12px; border-bottom: 1px solid var(--border); }
th { background: var(--surface-hover); font-weight: 600; color: var(--text-muted); text-transform: uppercase; font-size: 0.85rem; letter-spacing: 0.05em; }
tbody tr:hover { background: var(--surface-hover); }
.badge { padding: 4px 8px; border-radius: 6px; font-size: 0.75rem; font-weight: 700; text-transform: uppercase; }
.badge-danger { background: rgba(239, 68, 68, 0.1); color: var(--danger); }
.badge-success { background: rgba(34, 197, 94, 0.1); color: var(--success); }
.badge-warning { background: rgba(245, 158, 11, 0.1); color: var(--warning); }

.modal-overlay { position: fixed; top: 0; left: 0; width: 100%; height: 100%; background: rgba(15, 23, 42, 0.6); backdrop-filter: blur(4px); display: flex; justify-content: center; align-items: center; z-index: 1000; }
.modal-content { background: var(--surface); padding: 30px; border-radius: 16px; width: 400px; max-width: 90%; box-shadow: var(--shadow-lg); animation: popIn 0.3s cubic-bezier(0.16, 1, 0.3, 1) forwards; }
.modal-ancho { width: 700px !important; }

/* ================= Caja Registradora Específica ================= */
.layout-caja { display: flex; height: calc(100vh - 65px); overflow: hidden; }
.panel-izquierdo { flex: 2; padding: 24px; display: flex; flex-direction: column; border-right: 1px solid var(--border); background: var(--surface); }
.panel-derecho { flex: 1; padding: 24px; background: var(--bg); display: flex; flex-direction: column; }
#resultados-busqueda, #resultados-clientes { list-style: none; padding: 0; margin: 0; max-height: 250px; overflow-y: auto; border: 1px solid var(--border); border-radius: 8px; display: none; position: absolute; width: 100%; background: var(--surface); z-index: 10; box-shadow: var(--shadow-md); top: 100%; margin-top: 5px; }
#resultados-busqueda li, #resultados-clientes li { padding: 12px 16px; border-bottom: 1px solid var(--border); cursor: pointer; transition: background 0.2s; }
#resultados-busqueda li:hover, #resultados-clientes li:hover { background: var(--surface-hover); }
.modulo-cliente { background: var(--surface); border: 1px solid var(--border); padding: 20px; border-radius: 12px; margin-bottom: 20px; box-shadow: var(--shadow-sm); }

/* Animaciones */
@keyframes fadeIn { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } }
@keyframes popIn { from { opacity: 0; transform: scale(0.95); } to { opacity: 1; transform: scale(1); } }
.fade-in { animation: fadeIn 0.4s ease-out forwards; }