/* ============================================
   SABA WORKFLOW — Material You Design System
   ============================================ */

:root {
    /* M3 Color Tokens — Primary: Warm Brown/Amber */
    --md-primary: #8B6914;
    --md-on-primary: #FFFFFF;
    --md-primary-container: #FFDEA1;
    --md-on-primary-container: #2B1D00;

    /* Secondary — Warm Gold (aligned with Saba Form active state) */
    --md-secondary: #7a5a10;
    --md-on-secondary: #FFFFFF;
    --md-secondary-container: #fef0c7;
    --md-on-secondary-container: #7a5a10;

    /* Tertiary — Terracotta/Warm Brown */
    --md-tertiary: #9C5A2E;
    --md-on-tertiary: #FFFFFF;
    --md-tertiary-container: #FFDBC9;
    --md-on-tertiary-container: #371200;

    /* Error */
    --md-error: #B3261E;
    --md-on-error: #FFFFFF;
    --md-error-container: #F9DEDC;
    --md-on-error-container: #410E0B;

    /* Surfaces — Warm tones */
    --md-surface: #FFFBF5;
    --md-surface-dim: #E0DCD4;
    --md-surface-bright: #FFFBF5;
    --md-surface-container-lowest: #FFFFFF;
    --md-surface-container-low: #FAF6EE;
    --md-surface-container: #F4F0E8;
    --md-surface-container-high: #EDE9E1;
    --md-surface-container-highest: #E7E3DB;
    --md-on-surface: #1D1B16;
    --md-on-surface-variant: #4D4639;
    --md-outline: #7F7667;
    --md-outline-variant: #D1C8B8;

    /* Inverse */
    --md-inverse-surface: #33302A;
    --md-inverse-on-surface: #F6F1E9;
    --md-inverse-primary: #E8C45A;

    /* Status Colors (M3 custom) */
    --md-success: #386A20;
    --md-success-container: #B6F29B;
    --md-warning: #7C5800;
    --md-warning-container: #FFDEA1;

    /* Shape */
    --md-shape-xs: 4px;
    --md-shape-sm: 8px;
    --md-shape-md: 12px;
    --md-shape-lg: 16px;
    --md-shape-xl: 28px;
    --md-shape-full: 9999px;

    /* Elevation (tonal) */
    --md-elevation-1: 0 1px 3px 1px rgba(0,0,0,0.08), 0 1px 2px rgba(0,0,0,0.1);
    --md-elevation-2: 0 2px 6px 2px rgba(0,0,0,0.08), 0 1px 2px rgba(0,0,0,0.1);
    --md-elevation-3: 0 4px 8px 3px rgba(0,0,0,0.08), 0 1px 3px rgba(0,0,0,0.1);

    /* Typography */
    --md-font: 'Google Sans', 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

/* ========== BASE RESET ========== */
body {
    font-family: var(--md-font);
    background: var(--md-surface-container-low);
    color: var(--md-on-surface);
    -webkit-font-smoothing: antialiased;
    padding-top: 64px; /* spazio per navbar fixed-top */
}

/* ========== NAVBAR (Top App Bar) ========== */
.navbar {
    background: var(--md-surface-container-lowest) !important;
    border-bottom: none;
    box-shadow: 0 1px 4px rgba(0,0,0,0.05);
    height: 64px;
}
.navbar-brand {
    color: var(--md-on-surface) !important;
    font-weight: 600;
    font-size: 1.15rem;
    letter-spacing: -0.2px;
}
.navbar .nav-link {
    color: var(--md-on-surface-variant) !important;
    font-weight: 500;
    font-size: 0.875rem;
    border-radius: var(--md-shape-full);
    padding: 8px 16px !important;
    transition: background 0.2s;
}
.navbar .nav-link:hover {
    background: var(--md-surface-container-high);
}

/* ========== ADMIN LAYOUT (Resizable sidebar + main) ========== */
.admin-layout {
    display: flex;
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    bottom: 0;
}

.sidebar {
    width: var(--sidebar-width, 220px);
    min-width: 140px;
    max-width: 400px;
    flex-shrink: 0;
    padding: 12px 0 12px 0;
    background: #faf8f5;
    border-right: none;
    border-radius: 0 24px 24px 0;
    box-shadow: 0 2px 16px rgba(0,0,0,0.06);
    overflow-y: auto;
    z-index: 100;
}

/* Sidebar collapsed state */
.sidebar.collapsed {
    width: 0 !important;
    min-width: 0 !important;
    padding: 0 !important;
    overflow: hidden !important;
    border: none !important;
    box-shadow: none !important;
}
.sidebar.collapsed + .sidebar-resizer {
    display: none;
}
.sidebar {
    transition: width 0.25s ease, padding 0.25s ease, box-shadow 0.25s ease;
}

.sidebar-resizer {
    width: 5px;
    cursor: col-resize;
    background: transparent;
    flex-shrink: 0;
    position: relative;
    z-index: 101;
    transition: background 0.15s;
}
.sidebar-resizer:hover,
.sidebar-resizer.dragging {
    background: var(--md-primary);
    opacity: 0.4;
}

.admin-main {
    flex: 1;
    overflow-y: auto;
    padding: 20px 24px 40px;
    min-width: 0;
}

.sidebar .nav-link {
    font-weight: 500;
    color: var(--md-on-surface-variant);
    padding: 9px 20px;
    border-radius: 0 24px 24px 0;
    margin-bottom: 2px;
    margin-right: 12px;
    font-size: 0.875rem;
    display: flex;
    align-items: center;
    gap: 12px;
    transition: all 0.2s ease;
    border-left: none;
}

.sidebar .nav-link i {
    margin-right: 0;
    font-size: 1.1rem;
    width: 24px;
    text-align: center;
}

.sidebar .nav-link:hover {
    color: var(--md-on-surface);
    background: #f3ede4;
}

.sidebar .nav-link.active {
    color: var(--md-on-secondary-container);
    background: var(--md-secondary-container);
    font-weight: 600;
    border-left: none;
}
.sidebar .nav-link.active i {
    opacity: 1;
}

.sidebar-heading,
.sidebar h6 {
    font-size: 0.58rem;
    text-transform: uppercase;
    letter-spacing: 0.18em;
    color: var(--md-primary);
    font-weight: 700;
    padding: 14px 18px 6px;
    margin: 0;
    border-bottom: 1px solid rgba(139,105,20,0.12);
}

/* Page header */
main > .d-flex.border-bottom {
    border-bottom-color: var(--md-outline-variant) !important;
    margin-bottom: 24px !important;
    padding-bottom: 16px !important;
}

main h1.h2 {
    font-weight: 600;
    font-size: 1.5rem;
    letter-spacing: -0.3px;
    color: var(--md-on-surface);
}

/* ========== CARDS (M3 Surface Containers) ========== */
.card {
    border: 1px solid var(--md-outline-variant);
    border-radius: 20px;
    background: var(--md-surface-container-lowest);
    box-shadow: 0 1px 3px rgba(0,0,0,0.08), 0 4px 12px rgba(0,0,0,0.04);
    overflow: hidden;
    transition: box-shadow 0.2s;
}

.card:hover {
    box-shadow: var(--md-elevation-2);
}

.card-header {
    background: transparent;
    border-bottom: 1px solid var(--md-outline-variant);
    padding: 16px 20px;
    font-weight: 600;
}

.card-header h5,
.card-header h6 {
    margin: 0;
    font-weight: 600;
    font-size: 0.95rem;
    color: var(--md-on-surface);
}

.card-body {
    padding: 20px;
}

/* ========== STAT CARDS (Dashboard) ========== */
.stat-card {
    border-left: none;
    border: 1px solid var(--md-outline-variant);
    border-radius: 20px;
    padding: 24px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.08), 0 4px 12px rgba(0,0,0,0.04);
    transition: transform 0.2s, box-shadow 0.2s;
    position: relative;
    overflow: hidden;
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    border-radius: 4px 0 0 4px;
}

.stat-card.primary { background: var(--md-surface-container-lowest); }
.stat-card.primary::before { background: var(--md-primary); }
.stat-card.success { background: var(--md-surface-container-lowest); }
.stat-card.success::before { background: var(--md-success); }
.stat-card.warning { background: var(--md-surface-container-lowest); }
.stat-card.warning::before { background: var(--md-warning); }
.stat-card.danger { background: var(--md-surface-container-lowest); }
.stat-card.danger::before { background: var(--md-error); }

.stat-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--md-elevation-3);
}

.stat-value {
    font-size: 2.25rem;
    font-weight: 700;
    margin: 0;
    letter-spacing: -1px;
    color: var(--md-on-surface);
}

.stat-label {
    color: var(--md-on-surface-variant);
    font-size: 0.8125rem;
    text-transform: uppercase;
    letter-spacing: 0.8px;
    font-weight: 500;
}

/* ========== BUTTONS (M3 Filled, Tonal, Outlined) ========== */
.btn {
    border-radius: var(--md-shape-md);
    font-weight: 500;
    font-size: 0.875rem;
    letter-spacing: 0.1px;
    padding: 10px 24px;
    transition: all 0.2s;
    border: none;
}

.btn-primary {
    background: var(--md-primary);
    color: var(--md-on-primary);
}
.btn-primary:hover {
    background: #735610;
    box-shadow: var(--md-elevation-1);
}

.btn-success {
    background: var(--md-success);
    color: #fff;
}
.btn-success:hover { background: #4a7f2e; }

.btn-warning {
    background: var(--md-warning-container);
    color: var(--md-warning);
    border: none;
}
.btn-warning:hover { background: #f5d48a; }

.btn-danger {
    background: var(--md-error-container);
    color: var(--md-error);
    border: none;
}
.btn-danger:hover { background: #f2c5c3; }

.btn-outline-primary {
    background: transparent;
    color: var(--md-primary);
    border: 1.5px solid var(--md-outline-variant);
}
.btn-outline-primary:hover {
    background: var(--md-primary-container);
    color: var(--md-on-primary-container);
    border-color: transparent;
}

.btn-outline-secondary {
    background: transparent;
    color: var(--md-on-surface-variant);
    border: 1.5px solid var(--md-outline-variant);
}
.btn-outline-secondary:hover {
    background: var(--md-surface-container-high);
    border-color: transparent;
}

.btn-outline-danger {
    background: transparent;
    color: var(--md-error);
    border: 1.5px solid var(--md-error);
}
.btn-outline-danger:hover {
    background: var(--md-error-container);
    border-color: transparent;
}

.btn-outline-info {
    background: transparent;
    color: var(--md-tertiary);
    border: 1.5px solid var(--md-outline-variant);
}
.btn-outline-info:hover {
    background: var(--md-tertiary-container);
    color: var(--md-on-tertiary-container);
    border-color: transparent;
}

.btn-sm {
    padding: 6px 12px;
    font-size: 0.8125rem;
}
.btn-lg {
    padding: 14px 32px;
    font-size: 1rem;
}

/* FAB-like button */
.btn-fab {
    width: 56px;
    height: 56px;
    border-radius: var(--md-shape-lg);
    background: var(--md-primary-container);
    color: var(--md-on-primary-container);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--md-elevation-3);
    border: none;
    font-size: 1.5rem;
}

/* ========== STATUS BADGES (M3 Chips) ========== */
.status-badge {
    padding: 2px 10px;
    border-radius: var(--md-shape-sm);
    font-size: 0.72rem;
    font-weight: 600;
    text-transform: none;
    letter-spacing: 0;
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

.status-draft {
    background: var(--md-surface-container-highest);
    color: var(--md-on-surface-variant);
}
.status-active {
    background: var(--md-success-container);
    color: var(--md-success);
}
.status-paused {
    background: var(--md-warning-container);
    color: var(--md-warning);
}
.status-completed {
    background: var(--md-primary-container);
    color: var(--md-primary);
}
.status-pending {
    background: var(--md-tertiary-container);
    color: var(--md-tertiary);
}
.status-archived {
    background: var(--md-surface-container-high);
    color: var(--md-on-surface-variant);
}
.status-in_progress {
    background: var(--md-tertiary-container);
    color: var(--md-on-tertiary-container);
}
.status-expired {
    background: #FFE0B2;
    color: #E65100;
}

/* ========== BOOTSTRAP BADGE M3 OVERRIDES ========== */
.badge.bg-primary {
    background: var(--md-primary) !important;
    color: var(--md-on-primary) !important;
}
.badge.bg-secondary {
    background: var(--md-surface-container-highest) !important;
    color: var(--md-on-surface-variant) !important;
}
.badge.bg-success {
    background: var(--md-success-container) !important;
    color: var(--md-success) !important;
}
.badge.bg-danger {
    background: var(--md-error-container) !important;
    color: var(--md-error) !important;
}
.badge.bg-warning {
    background: var(--md-warning-container) !important;
    color: var(--md-warning) !important;
}
.badge.bg-warning.text-dark {
    color: var(--md-warning) !important;
}
.badge.bg-info {
    background: var(--md-tertiary-container) !important;
    color: var(--md-on-tertiary-container) !important;
}
.badge.bg-info.text-dark {
    color: var(--md-on-tertiary-container) !important;
}

/* ========== TABLES ========== */
.table {
    --bs-table-bg: transparent;
    font-size: 0.875rem;
}

.table thead th {
    background: var(--md-surface-container);
    color: var(--md-on-surface-variant);
    font-weight: 600;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border-bottom: 1px solid var(--md-outline-variant);
    padding: 12px 16px;
}

.table tbody td {
    padding: 12px 16px;
    border-bottom: 1px solid var(--md-surface-container-high);
    color: var(--md-on-surface);
    vertical-align: middle;
}

.table tbody tr:hover td {
    background: var(--md-surface-container-low);
}

.table-actions {
    white-space: nowrap;
}

.table-actions .btn {
    padding: 4px 8px;
    font-size: 0.8125rem;
    border-radius: var(--md-shape-sm);
}

/* ========== FORMS (M3 Inputs) ========== */
.form-control,
.form-select {
    border: 1.5px solid var(--md-outline-variant);
    border-radius: var(--md-shape-md);
    padding: 10px 13px;
    font-size: 0.9375rem;
    color: var(--md-on-surface);
    background: var(--md-surface-container-lowest);
    transition: border-color 0.15s, box-shadow 0.15s;
}

.form-control:focus,
.form-select:focus {
    border-color: var(--md-primary);
    box-shadow: 0 0 0 3px rgba(139,105,20,0.10);
    background: var(--md-surface-container-lowest);
}

.form-control-sm,
.form-select-sm {
    padding: 8px 12px;
    font-size: 0.8125rem;
}

.form-label {
    font-weight: 500;
    font-size: 0.8125rem;
    color: var(--md-on-surface-variant);
    margin-bottom: 6px;
}

.form-check-input:checked {
    background-color: var(--md-primary);
    border-color: var(--md-primary);
}

/* ========== ALERTS (M3 Banners) ========== */
.alert {
    border: none;
    border-radius: var(--md-shape-lg);
    font-size: 0.875rem;
    padding: 16px 20px;
}

.alert-info {
    background: #C3E7FF;
    color: #00497B;
}
.alert-success {
    background: var(--md-success-container);
    color: var(--md-success);
}
.alert-warning {
    background: var(--md-warning-container);
    color: var(--md-warning);
}
.alert-danger {
    background: var(--md-error-container);
    color: var(--md-error);
}

/* ========== MODALS (M3 Dialogs) ========== */
.modal-content {
    border: none;
    border-radius: var(--md-shape-xl);
    background: var(--md-surface-container-highest);
    box-shadow: var(--md-elevation-3);
}

.modal-header {
    border-bottom: none;
    padding: 24px 24px 0;
}

.modal-title {
    font-weight: 600;
    font-size: 1.25rem;
}

.modal-body {
    padding: 16px 24px;
}

.modal-footer {
    border-top: none;
    padding: 8px 24px 24px;
}

/* ========== VARIABLE BADGES (Email Template Editor) ========== */
.variable-bar {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 6px;
    padding: 10px 12px;
    background: var(--md-surface-container);
    border-radius: var(--md-shape-sm) var(--md-shape-sm) 0 0;
    border: 1px solid var(--md-outline-variant);
    border-bottom: none;
}

.variable-bar-label {
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--md-on-surface-variant);
    display: flex;
    align-items: center;
    gap: 4px;
    margin-right: 4px;
}

.variable-badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 4px 10px;
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--md-primary);
    background: var(--md-primary-container);
    border: none;
    border-radius: var(--md-shape-full);
    cursor: pointer;
    transition: all 0.15s ease;
    user-select: none;
    white-space: nowrap;
}

.variable-badge:hover {
    background: var(--md-primary);
    color: var(--md-on-primary);
    box-shadow: var(--md-elevation-1);
}

.variable-badge i {
    font-size: 0.8rem;
}

.variable-bar + .template-editor,
.variable-bar + .note-editor {
    border-radius: 0 0 var(--md-shape-sm) var(--md-shape-sm);
}

/* ========== SUMMERNOTE M3 OVERRIDES ========== */
.note-editor.note-frame {
    border: 1px solid var(--md-outline-variant) !important;
    border-radius: var(--md-shape-sm) !important;
    overflow: hidden;
}

.variable-bar + .note-editor.note-frame {
    border-top: none !important;
    border-radius: 0 0 var(--md-shape-sm) var(--md-shape-sm) !important;
}

.note-editor .note-toolbar {
    background: var(--md-surface-container) !important;
    border-bottom: 1px solid var(--md-outline-variant) !important;
    padding: 4px 8px !important;
}

.note-editor .note-toolbar .note-btn {
    border-radius: var(--md-shape-xs) !important;
    border: none !important;
    background: transparent !important;
    color: var(--md-on-surface-variant) !important;
    font-size: 0.8rem !important;
    padding: 4px 8px !important;
}

.note-editor .note-toolbar .note-btn:hover {
    background: var(--md-surface-container-high) !important;
    color: var(--md-primary) !important;
}

.note-editor .note-toolbar .note-btn.active {
    background: var(--md-primary-container) !important;
    color: var(--md-primary) !important;
}

.note-editor .note-editing-area .note-editable {
    background: var(--md-surface-container-lowest) !important;
    color: var(--md-on-surface) !important;
    font-family: var(--md-font) !important;
    font-size: 0.9rem !important;
    padding: 16px !important;
}

.note-editor .note-statusbar {
    background: var(--md-surface-container) !important;
    border-top: 1px solid var(--md-outline-variant) !important;
}

/* Summernote dropdowns inside modal */
.note-editor .note-dropdown-menu {
    border-radius: var(--md-shape-sm) !important;
    border: 1px solid var(--md-outline-variant) !important;
    box-shadow: var(--md-elevation-2) !important;
}

/* ========== CHARTS ========== */
.chart-container {
    position: relative;
    height: 300px;
    margin-bottom: 1.5rem;
}

/* ========== WIZARD STEPS ========== */
.form-step { display: none; }
.form-step.active { display: block; }

.step-indicator {
    display: flex;
    justify-content: space-between;
    margin-bottom: 2rem;
}

.step-indicator .step {
    flex: 1;
    text-align: center;
    padding: 1rem;
    border-bottom: 3px solid var(--md-outline-variant);
    color: var(--md-on-surface-variant);
    transition: all 0.2s;
}

.step-indicator .step.active {
    border-bottom-color: var(--md-primary);
    color: var(--md-primary);
    font-weight: 600;
}

.step-indicator .step.completed {
    border-bottom-color: var(--md-success);
    color: var(--md-success);
}

/* ========== EMPTY STATES ========== */
.empty-state {
    text-align: center;
    padding: 48px 24px;
    color: var(--md-on-surface-variant);
}

.empty-state i {
    font-size: 4rem;
    margin-bottom: 16px;
    opacity: 0.25;
    color: var(--md-primary);
}

.empty-state p {
    max-width: 400px;
    margin: 0 auto 16px;
    line-height: 1.5;
}

/* ========== LOADING SPINNER ========== */
.spinner-overlay {
    position: fixed;
    inset: 0;
    background: rgba(255,255,255,0.7);
    backdrop-filter: blur(4px);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 9999;
}

/* ========== RESPONSIVE ========== */
@media (max-width: 768px) {
    .admin-layout {
        flex-direction: column;
    }
    .sidebar {
        width: 100% !important;
        max-width: none;
        min-width: 0;
        border-right: none;
        border-bottom: 1px solid var(--md-outline-variant);
    }
    .sidebar-resizer {
        display: none;
    }
    .stat-card {
        margin-bottom: 12px;
    }
}

/* ========== SELECTION / FOCUS RING ========== */
:focus-visible {
    outline: 2px solid var(--md-primary);
    outline-offset: 2px;
}

/* ========== SCROLLBAR ========== */
::-webkit-scrollbar {
    width: 8px;
}
::-webkit-scrollbar-track {
    background: transparent;
}
::-webkit-scrollbar-thumb {
    background: var(--md-outline-variant);
    border-radius: var(--md-shape-full);
}
::-webkit-scrollbar-thumb:hover {
    background: var(--md-outline);
}

/* ========== TRANSITIONS ========== */
* {
    transition-property: background-color, border-color, color, box-shadow;
    transition-duration: 0s;
}
a, .btn, .nav-link, .card, .stat-card, .table tbody tr, .form-control, .form-select {
    transition-duration: 0.2s;
    transition-timing-function: cubic-bezier(0.2, 0, 0, 1);
}