:root {
    /* Dark Mode / Green Accent Theme */
    --primary-color: #198754;
    --primary-hover: #157347;
    --primary-light: rgba(25, 135, 84, 0.15);
    --primary-gradient: linear-gradient(135deg, #198754 0%, #0f5132 100%);

    --secondary-color: #198754;
    --secondary-hover: #157347;

    --bg-color: #000000;
    /* Fondo Negro Puro */
    --surface-color: #121212;
    /* Tarjetas/Paneles */
    --surface-hover: #1e1e1e;

    --text-main: #ffffff;
    --text-muted: #a1a1aa;

    --border-color: #27272a;
    --border-light: #3f3f46;

    --danger-color: #ef4444;
    --success-color: #10b981;
    --warning-color: #f59e0b;

    /* Elevated Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.5);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.6);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.6);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.6);

    --radius-sm: 0.5rem;
    --radius-md: 0.75rem;
    --radius-lg: 1rem;
    --radius-xl: 1.25rem;
    --radius-2xl: 1.75rem;
}

body {
    background-color: var(--bg-color) !important;
    color: var(--text-main) !important;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    letter-spacing: -0.015em;
    -webkit-font-smoothing: antialiased;
    position: relative;
}

body::before {
    content: "";
    position: fixed;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle at 50% 50%, rgba(25, 135, 84, 0.08), transparent 60%);
    z-index: -1;
    pointer-events: none;
}

h1,
h2,
h3,
h4,
h5,
h6 {
    color: #ffffff !important;
}

/* Force override bootstrap background and text colors mapped inside PHP files */
.bg-light,
.bg-white {
    background-color: var(--surface-color) !important;
}

.text-dark {
    color: var(--text-main) !important;
}

.text-muted {
    color: var(--text-muted) !important;
}

.border,
.border-top,
.border-bottom,
.border-start,
.border-end {
    border-color: var(--border-color) !important;
}

/* Auth Page */
.auth-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    background: #000000;
}

.auth-card {
    background: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-xl);
    width: 100%;
    max-width: 450px;
    padding: 3rem 2.5rem;
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.auth-card:hover {
    transform: translateY(-5px);
}

/* Custom Buttons */
.btn-primary-custom,
.btn-primary {
    background: var(--primary-color) !important;
    color: white !important;
    border: none !important;
    padding: 0.75rem 1.75rem;
    border-radius: var(--radius-sm);
    font-weight: 600;
    transition: all 0.3s ease;
    box-shadow: 0 4px 6px -1px rgba(25, 135, 84, 0.3);
}

.btn-primary-custom:hover,
.btn-primary:hover {
    background: var(--primary-hover) !important;
    box-shadow: 0 10px 15px -3px rgba(25, 135, 84, 0.4);
    transform: translateY(-2px);
}

.btn-outline-primary {
    border-color: var(--primary-color) !important;
    color: var(--primary-color) !important;
}

.btn-outline-primary:hover {
    background-color: var(--primary-color) !important;
    color: white !important;
}

.btn-light {
    background-color: #27272a !important;
    color: var(--text-main) !important;
    border-color: var(--border-color) !important;
}

.btn-light:hover {
    background-color: #3f3f46 !important;
}

/* Inputs */
.form-control,
.form-select,
.input-group-text {
    border: 1px solid var(--border-color) !important;
    border-radius: var(--radius-sm) !important;
    padding: 0.75rem 1rem;
    background-color: #1a1a1a !important;
    transition: all 0.2s ease;
    font-size: 0.95rem;
    color: var(--text-main) !important;
}

.form-control:focus,
.form-select:focus {
    background-color: #27272a !important;
    border-color: var(--primary-color) !important;
    box-shadow: 0 0 0 4px rgba(25, 135, 84, 0.15) !important;
    outline: none;
}

.form-control::placeholder {
    color: var(--text-muted);
}

/* Fix option text color */
option {
    background: var(--surface-color);
    color: var(--text-main);
}

.form-label {
    font-weight: 600;
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: 0.5rem;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

/* Role Selector */
.role-selector {
    display: flex;
    gap: 8px;
    margin-bottom: 1.5rem;
    background: var(--bg-color);
    padding: 6px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-color);
}

.role-btn {
    flex: 1;
    padding: 0.6rem;
    text-align: center;
    border-radius: calc(var(--radius-sm) - 4px);
    cursor: pointer;
    transition: all 0.2s;
    color: var(--text-muted);
    font-weight: 600;
    font-size: 0.85rem;
}

.role-btn.active {
    background: var(--surface-color);
    color: var(--primary-color);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
}

/* Sidebar & Layout */
.layout-wrapper {
    display: flex;
    min-height: 100vh;
    overflow-x: hidden;
    position: relative;
    width: 100%;
}

/* Base Desktop Sidebar */
.sidebar {
    background-color: var(--surface-color);
    border-right: 1px solid var(--border-color);
    width: 260px;
    flex-shrink: 0;
    z-index: 1045;
    transition: margin-left 0.3s cubic-bezier(0.4, 0, 0.2, 1), transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 2px 0 10px rgba(0, 0, 0, 0.5);
    height: 100vh;
    position: sticky;
    top: 0;
    overflow-y: auto;
}

.sidebar.collapsed {
    margin-left: -260px;
}

/* Mobile Sidebar Overrides */
@media (max-width: 768px) {
    .sidebar {
        position: fixed;
        left: 0;
        top: 0;
        margin-left: 0;
        transform: translateX(-100%);
    }

    .sidebar.collapsed {
        transform: translateX(0);
        margin-left: 0;
    }
}

.main-content {
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    min-width: 0;
    width: 100%;
}

.sidebar h4 {
    color: var(--primary-color) !important;
}

.sidebar .nav-link {
    color: var(--text-muted);
    padding: 0.9rem 1.25rem;
    margin-bottom: 0.4rem;
    border-radius: var(--radius-sm);
    transition: all 0.2s ease;
    font-weight: 500;
    display: flex;
    align-items: center;
}

.sidebar .nav-link i {
    width: 24px;
    text-align: center;
    font-size: 1.1rem;
    transition: transform 0.2s;
}

.sidebar .nav-link:hover {
    background-color: #1a1a1a;
    color: var(--primary-color);
}

.sidebar .nav-link:hover i {
    transform: scale(1.1);
}

.sidebar .nav-link.active {
    background: var(--primary-light);
    color: var(--primary-color);
    border-left: 4px solid var(--primary-color);
}

.sidebar .nav-link.active i {
    color: var(--primary-color);
}

/* Topbar */
.topbar {
    background-color: rgba(18, 18, 18, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-color);
    padding: 1rem 2rem;
    position: sticky;
    top: 0;
    z-index: 30;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.sidebar-toggle {
    background: none;
    border: none;
    font-size: 1.25rem;
    color: var(--text-main);
    cursor: pointer;
    padding: 0.5rem;
    border-radius: var(--radius-sm);
    transition: background 0.2s;
}

.sidebar-toggle:hover {
    background: var(--border-color);
}

/* Cards */
.card {
    background-color: var(--surface-color) !important;
    border: 1px solid var(--border-color) !important;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    transition: box-shadow 0.3s ease, transform 0.3s ease;
}

.card-header {
    background-color: #1a1a1a !important;
    border-bottom: 1px solid var(--border-color) !important;
    color: var(--text-main);
}

/* Tables */
.table {
    margin-bottom: 0;
    color: var(--text-main) !important;
}

.table-responsive {
    background: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
}

.table th {
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.75rem;
    letter-spacing: 0.05em;
    color: var(--text-muted) !important;
    border-bottom: 2px solid var(--border-color) !important;
    background-color: #1a1a1a !important;
}

.table td {
    padding: 1rem 0.5rem;
    vertical-align: middle;
    border-bottom: 1px solid var(--border-color) !important;
    background-color: var(--surface-color) !important;
    color: var(--text-main) !important;
}

.table tbody tr {
    transition: background-color 0.2s;
}

.table tbody tr:hover td {
    background-color: #1a1a1a !important;
}

/* POS Specific */
.product-card {
    cursor: pointer;
    transition: all 0.2s ease;
    border: 1px solid var(--border-color) !important;
    border-radius: var(--radius-lg);
    background: var(--surface-color) !important;
    display: flex;
    flex-direction: column;
}

.product-card:hover {
    transform: translateY(-4px);
    border-color: var(--primary-color) !important;
    box-shadow: 0 10px 25px -5px rgba(25, 135, 84, 0.15);
}

.cart-container {
    height: calc(100vh - 150px);
    display: flex;
    flex-direction: column;
    background: #18181b;
    /* Delimitación de POS: un poco más claro que surface */
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg), 0 0 20px rgba(25, 135, 84, 0.05);
    /* Glow verde sutil */
    border: 1px solid var(--border-color);
    overflow: hidden;
}

/* Mobile cart adjustment */
@media (max-width: 768px) {
    .cart-container {
        height: auto;
        min-height: 50vh;
    }
}

.cart-item {
    padding: 1rem 0;
    border-bottom: 1px dashed var(--border-color) !important;
    background-color: var(--surface-color) !important;
}

.cart-item:last-child {
    border-bottom: none !important;
}

.cart-items {
    background: #18181b !important;
}

.cart-footer {
    background: #18181b !important;
    padding: 1rem;
    border-top: 1px solid var(--border-color);
}

/* Badges */
.badge {
    padding: 0.4em 0.8em;
    font-weight: 500;
    letter-spacing: 0.02em;
    border-radius: 2rem;
}

.bg-secondary {
    background-color: #3f3f46 !important;
}

.bg-success {
    background-color: var(--primary-color) !important;
    color: white !important;
}

/* Modals */
.modal-content {
    background-color: var(--surface-color) !important;
    border: 1px solid var(--border-color) !important;
    color: var(--text-main);
}

.modal-header {
    border-bottom: 1px solid var(--border-color) !important;
}

.modal-footer {
    border-top: 1px solid var(--border-color) !important;
}

.btn-close {
    filter: invert(1) grayscale(100%) brightness(200%);
}

/* Utilities */
.hidden {
    display: none !important;
}

.text-primary {
    color: var(--primary-color) !important;
}

.text-success {
    color: var(--primary-color) !important;
    /* Mapped success to the green primary */
}

/* Specific overrides for hardcoded light classes */
.bg-light,
.table-light {
    background-color: var(--surface-color) !important;
}

.bg-white {
    background-color: var(--surface-color) !important;
}

/* SweetAlert Dark Mode support */
.swal2-popup {
    background: var(--surface-color) !important;
    color: var(--text-main) !important;
}

.swal2-title,
.swal2-html-container {
    color: var(--text-main) !important;
}

.bg-primary {
    background: var(--primary-gradient) !important;
    color: #ffffff !important;
}