:root, body.ag-theme-dark {
    --ag-bg-base: #1e2129;
    --ag-bg-surface: #272a34;
    --ag-bg-surface-elevated: #323644;
    --ag-text-primary: #f0f2f5;
    --ag-text-secondary: #a0a5b1;
    --ag-accent: #20c997;
    --ag-accent-hover: #17a57a;
    --ag-border: #3b3f4e;
    --ag-sidebar-width: 250px;
    --ag-right-width: 300px;
    --ag-topbar-height: 70px;
    
    --ag-danger: #ea5455;
    --ag-warning: #ff9f43;
    --ag-info: #00cfe8;
    --ag-success: #28c76f;
    --ag-primary: #7367f0;
}

body.ag-theme-light {
    --ag-bg-base: #f0f2f5;
    --ag-bg-surface: #ffffff;
    --ag-bg-surface-elevated: #e9ecef;
    --ag-text-primary: #212529;
    --ag-text-secondary: #6c757d;
    --ag-border: #dee2e6;
}

body {
    margin: 0;
    padding: 0;
    font-family: 'Inter', 'Poppins', sans-serif;
    background-color: var(--ag-bg-base);
    color: var(--ag-text-primary);
    overflow: hidden; /* Avoid double scrollbars, handle in grid areas */
    transition: background-color 0.3s ease, color 0.3s ease;
}

/* Base Layout Grid */
.ag-layout-container {
    display: grid;
    grid-template-columns: var(--ag-sidebar-width) 1fr auto;
    grid-template-rows: var(--ag-topbar-height) 1fr;
    height: 100vh;
    width: 100vw;
}

/* Topbar */
.ag-topbar {
    grid-column: 2 / 4;
    grid-row: 1 / 2;
    background-color: var(--ag-bg-base);
    border-bottom: 1px solid var(--ag-border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 2rem;
    z-index: 10;
}

.ag-search-bar {
    background-color: var(--ag-bg-surface);
    border: 1px solid var(--ag-border);
    border-radius: 8px;
    padding: 8px 16px;
    display: flex;
    align-items: center;
    gap: 8px;
    width: 400px;
}

.ag-search-bar input {
    background: transparent;
    border: none;
    color: var(--ag-text-primary);
    outline: none;
    width: 100%;
}

.ag-topbar-actions {
    display: flex;
    align-items: center;
    gap: 16px;
}

.ag-btn-icon {
    background: var(--ag-bg-surface);
    border: 1px solid var(--ag-border);
    color: var(--ag-text-secondary);
    width: 40px;
    height: 40px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.2s;
}

.ag-btn-icon:hover {
    color: var(--ag-text-primary);
    background: var(--ag-bg-surface-elevated);
}

/* Left Sidebar */
.ag-sidebar-left {
    grid-column: 1 / 2;
    grid-row: 1 / 3;
    background-color: var(--ag-bg-surface);
    border-right: 1px solid var(--ag-border);
    display: flex;
    flex-direction: column;
    z-index: 20;
}

.ag-logo-container {
    height: var(--ag-topbar-height);
    display: flex;
    align-items: center;
    padding: 0 1.5rem;
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--ag-accent);
    border-bottom: 1px solid var(--ag-border);
    gap: 12px;
}

.ag-nav {
    flex: 1;
    overflow-y: auto;
    padding: 1.5rem 0;
}

.ag-nav ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.ag-nav li a {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 1rem;
    color: var(--ag-text-secondary);
    text-decoration: none;
    transition: all 0.2s;
    border-left: 3px solid transparent;
    gap: 8px;
}

.ag-nav li a:hover, .ag-nav li a.active {
    color: var(--ag-accent);
    background-color: rgba(32, 201, 151, 0.05);
    border-left-color: var(--ag-accent);
}

.ag-nav li a i {
    font-size: 1.5rem;
}

.ag-nav li a span {
    font-size: 0.8rem;
    font-weight: 500;
    text-align: center;
}

/* Sidebar Headings */
.ag-nav .sidebar-heading {
    padding: 1rem 1.5rem 0.5rem;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: #6c757d;
    font-weight: 600;
}

.ag-nav .sidebar-divider {
    border-top: 1px solid var(--ag-border);
    margin: 0.5rem 1rem;
}

/* Main Content */
.ag-main-content {
    grid-column: 2 / 3;
    grid-row: 2 / 3;
    background-color: var(--ag-bg-base);
    overflow-y: auto;
    padding: 2rem;
}

/* Right Sidebar */
.ag-sidebar-right {
    grid-column: 3 / 4;
    grid-row: 2 / 3;
    background-color: var(--ag-bg-surface);
    border-left: 1px solid var(--ag-border);
    overflow-y: auto;
    padding: 1.5rem;
    width: var(--ag-right-width);
}

.ag-sidebar-right-title {
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--ag-text-primary);
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--ag-border);
}

/* Utility to override Bootstrap classes that might still be in views while migrating */
.container-fluid {
    padding: 0 !important;
}

/* Typography & Cards for Antigravity (Basic for Part 1) */
.ag-card {
    background-color: var(--ag-bg-surface);
    border: 1px solid var(--ag-border);
    border-radius: 12px;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
}

.page-header h2 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-top: 0;
    color: var(--ag-text-primary);
}

/* Modals adaptation */
.modal-content {
    background-color: var(--ag-bg-surface);
    color: var(--ag-text-primary);
    border: 1px solid var(--ag-border);
}
.modal-header, .modal-footer {
    border-color: var(--ag-border);
}
.close, .btn-close {
    filter: invert(1) grayscale(100%) brightness(200%);
}

/* Responsive Grid Adjustments */
@media (max-width: 1200px) {
    .ag-layout-container {
        grid-template-columns: var(--ag-sidebar-width) 1fr 0px;
    }
    .ag-sidebar-right {
        display: none;
    }
    .ag-topbar {
        grid-column: 2 / 3;
    }
}

@media (max-width: 768px) {
    .ag-layout-container {
        grid-template-columns: 80px 1fr;
    }
    .ag-nav li a span {
        display: none;
    }
    .ag-logo-container span {
        display: none;
    }
}

/* --- PART 2: DASHBOARD COMPONENTS --- */
.ag-stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
}

.summary-expenses {
    display: flex;
    justify-content: space-around;
    align-items: center;
    text-align: center;
    gap: 0;
}
.summary-expenses .ag-stat-item { flex: 1; padding: 1rem; }
.summary-expenses .border-left { border-left: 1px solid var(--ag-border); }
.summary-expenses .border-right { border-right: 1px solid var(--ag-border); }

.ag-stat-label {
    font-size: 0.85rem;
    color: var(--ag-text-secondary);
    letter-spacing: 0.5px;
    margin-bottom: 0.5rem;
}
.ag-stat-value { font-size: 1.75rem; font-weight: 700; }

.ag-stat-card {
    background-color: var(--ag-bg-surface);
    border: 1px solid var(--ag-border);
    border-radius: 12px;
    padding: 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    transition: transform 0.2s;
}
.ag-stat-card:hover { border-color: rgba(255,255,255,0.1); }
.ag-stat-card .ag-stat-info { display: flex; flex-direction: column; }
.ag-stat-card .ag-stat-number { font-size: 2rem; font-weight: 700; color: var(--ag-text-primary); line-height: 1; margin-bottom: 0.25rem; }
.ag-stat-card .ag-stat-title { font-size: 0.875rem; color: var(--ag-text-secondary); }
.ag-stat-card .ag-stat-icon { font-size: 3rem; opacity: 0.2; }
.ag-stat-card.primary .ag-stat-icon { color: var(--ag-primary); }
.ag-stat-card.danger .ag-stat-icon { color: var(--ag-danger); }
.ag-stat-card.warning .ag-stat-icon { color: var(--ag-warning); }

.ag-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 0.5rem 1rem;
    border-radius: 6px;
    font-weight: 500;
    font-size: 0.875rem;
    cursor: pointer;
    text-decoration: none;
    transition: all 0.2s;
    border: none;
}
.ag-btn-sm { padding: 0.25rem 0.75rem; font-size: 0.75rem; }
.ag-btn-primary { background-color: var(--ag-primary); color: #fff; }
.ag-btn-primary:hover { background-color: #6155dd; }

.ag-table-wrapper { overflow-x: auto; width: 100%; border-radius: 8px; border: 1px solid var(--ag-border); }
.ag-table { width: 100%; border-collapse: separate; border-spacing: 0; }
.ag-table th, .ag-table td { padding: 1rem; text-align: left; border-bottom: 1px solid var(--ag-border); color: var(--ag-text-primary); }
.ag-table tbody tr:hover td { background-color: rgba(255, 255, 255, 0.02); }
.ag-table tbody tr:last-child td { border-bottom: none; }

.ag-badge {
    display: inline-block;
    padding: 0.35em 0.85em;
    font-size: 0.75em;
    font-weight: 600;
    line-height: 1;
    text-align: center;
    white-space: nowrap;
    vertical-align: baseline;
    border-radius: 50rem;
}
.ag-badge-success { background-color: rgba(40, 199, 111, 0.15); color: var(--ag-success); border: 1px solid rgba(40, 199, 111, 0.3); }
.ag-badge-info { background-color: rgba(0, 207, 232, 0.15); color: var(--ag-info); border: 1px solid rgba(0, 207, 232, 0.3); }
.ag-badge-warning { background-color: rgba(255, 159, 67, 0.15); color: var(--ag-warning); border: 1px solid rgba(255, 159, 67, 0.3); }
.ag-badge-secondary { background-color: rgba(160, 165, 177, 0.15); color: var(--ag-text-secondary); border: 1px solid rgba(160, 165, 177, 0.3); }

.ag-activity-feed { display: flex; flex-direction: column; gap: 1rem; }
.ag-activity-item {
    display: flex; gap: 1rem; text-decoration: none; padding: 1rem;
    border-radius: 8px; transition: background 0.2s;
    border: 1px solid var(--ag-border);
    background: var(--ag-bg-base);
}
.ag-activity-item:hover { background-color: var(--ag-bg-surface-elevated); border-color: rgba(255,255,255,0.1); }
.ag-activity-icon {
    width: 36px; height: 36px; border-radius: 50%;
    background-color: rgba(255,255,255,0.05);
    display: flex; align-items: center; justify-content: center;
    font-size: 1rem; flex-shrink: 0;
}
.ag-activity-content { flex: 1; }
.ag-activity-content h6 { font-size: 0.875rem; margin-top: 0; }
.ag-activity-content p { font-size: 0.8125rem; line-height: 1.4; margin-bottom: 0.25rem; }
.ag-activity-time { font-size: 0.75rem; }
.text-danger { color: var(--ag-danger) !important; }
.text-warning { color: var(--ag-warning) !important; }
.text-success { color: var(--ag-success) !important; }
.text-info { color: var(--ag-info) !important; }

.trip-card { transition: transform 0.2s; background: var(--ag-bg-base); }
.trip-card:hover { transform: translateY(-2px); border-color: rgba(255,255,255,0.1); }
.trip-card-content { display: flex; align-items: center; flex-wrap: wrap; gap: 1rem; }
.trip-date { flex: 0 0 100px; text-align: center; border-right: 1px solid var(--ag-border); padding-right: 1rem; }
.trip-info { flex: 1; min-width: 250px; }
.trip-km, .trip-status { flex: 0 0 120px; text-align: center; }
@media (max-width: 768px) {
    .trip-card-content { flex-direction: column; align-items: flex-start; }
    .trip-date { border-right: none; border-bottom: 1px solid var(--ag-border); padding-bottom: 1rem; width: 100%; }
}

/* --- PART 3: FORMS, ACTION GROUPS AND NOTIFICATIONS --- */

/* Action Groups (Table buttons) */
.ag-action-group {
    display: flex;
    gap: 0.5rem;
    flex-wrap: nowrap;
}
.ag-btn-outline {
    background-color: transparent;
    border: 1px solid var(--ag-border);
    color: var(--ag-text-primary);
}
.ag-btn-outline:hover {
    background-color: rgba(255,255,255,0.05);
}
.ag-btn-danger {
    background-color: rgba(234, 84, 85, 0.1);
    color: var(--ag-danger);
    border: 1px solid rgba(234, 84, 85, 0.3);
}
.ag-btn-danger:hover {
    background-color: var(--ag-danger);
    color: #fff;
}

/* Form Components */
.ag-form-grid-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}
@media (max-width: 768px) {
    .ag-form-grid-2 { grid-template-columns: 1fr; }
}

.ag-form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    margin-bottom: 1.25rem;
}

.ag-label {
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--ag-text-secondary);
}

.ag-input, .ag-select {
    background-color: var(--ag-bg-base);
    border: 1px solid var(--ag-border);
    color: var(--ag-text-primary);
    padding: 0.75rem 1rem;
    border-radius: 8px;
    font-family: inherit;
    font-size: 0.95rem;
    width: 100%;
    transition: border-color 0.2s;
    outline: none;
    box-sizing: border-box;
}
.ag-input:focus, .ag-select:focus {
    border-color: var(--ag-accent);
}
.ag-input::placeholder {
    color: rgba(255,255,255,0.3);
}

/* Toasts / Flash Messages */
.ag-toast-container {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 1050;
    display: flex;
    flex-direction: column;
    gap: 10px;
    pointer-events: none;
}

.ag-alert-toast {
    pointer-events: auto;
    padding: 1rem 1.25rem;
    border-radius: 8px;
    font-size: 0.9rem;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 12px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.5);
    animation: ag-slide-in 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275) forwards;
    background-color: var(--ag-bg-surface-elevated);
    border-left: 4px solid transparent;
}
.ag-alert-toast-close {
    margin-left: auto;
    background: none;
    border: none;
    color: var(--ag-text-secondary);
    cursor: pointer;
    font-size: 1.1rem;
}
.ag-alert-success {
    border-left-color: var(--ag-success);
    color: var(--ag-text-primary);
}
.ag-alert-danger {
    border-left-color: var(--ag-danger);
    color: var(--ag-text-primary);
}

@keyframes ag-slide-in {
    from { opacity: 0; transform: translateX(100%); }
    to { opacity: 1; transform: translateX(0); }
}

/* Custom Tabs */
.ag-tabs {
    display: flex;
    border-bottom: 1px solid var(--ag-border);
    margin-bottom: 1.5rem;
    overflow-x: auto;
    scrollbar-width: none;
}
.ag-tab-btn {
    background: transparent;
    border: none;
    color: var(--ag-text-secondary);
    padding: 1rem 1.5rem;
    font-size: 0.95rem;
    font-weight: 500;
    cursor: pointer;
    border-bottom: 2px solid transparent;
    transition: all 0.2s;
    white-space: nowrap;
}
.ag-tab-btn:hover {
    color: var(--ag-text-primary);
}
.ag-tab-btn.active {
    color: var(--ag-accent);
    border-bottom-color: var(--ag-accent);
}
.ag-tab-content {
    display: none;
}
.ag-tab-content.active {
    display: block;
    animation: ag-fade-in 0.3s ease;
}
@keyframes ag-fade-in {
    from { opacity: 0; }
    to { opacity: 1; }
}

/* --- CUSTOM SCROLLBARS --- */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}
::-webkit-scrollbar-track {
    background: transparent;
}
::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 10px;
}
::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.2);
}

* {
    scrollbar-width: thin;
    scrollbar-color: rgba(255, 255, 255, 0.1) transparent;
}

/* --- LOGIN PAGE --- */
.ag-login-wrapper { display: flex; height: 100vh; width: 100vw; background-color: var(--ag-bg-base); }
.ag-login-image-side {
    flex: 1; display: flex; flex-direction: column; justify-content: center; align-items: center;
    background: linear-gradient(135deg, rgba(115,103,240,0.1), rgba(32,201,151,0.05));
    border-right: 1px solid var(--ag-border);
}
.ag-login-image-side img { max-width: 100px; margin-bottom: 20px; }
.ag-login-image-side h1 { font-size: 2.5rem; font-weight: 700; color: var(--ag-text-primary); margin-bottom: 10px; }
.ag-login-image-side p { color: var(--ag-text-secondary); font-size: 1.1rem; }
.ag-login-form-side { flex: 1; display: flex; justify-content: center; align-items: center; }
.ag-login-card {
    background-color: var(--ag-bg-surface);
    border: 1px solid var(--ag-border);
    border-radius: 12px; padding: 3rem; width: 100%; max-width: 450px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.5);
}
.ag-btn-block { width: 100%; padding: 0.85rem; font-size: 1rem; margin-top: 1rem; }
@media (max-width: 768px) {
    .ag-login-wrapper { flex-direction: column; }
    .ag-login-image-side { flex: none; height: 35vh; }
    .ag-login-form-side { flex: 1; padding: 1.5rem; }
    .ag-login-card { padding: 2rem; }
}

/* --- DROPDOWN MENU --- */
.ag-dropdown {
    position: relative;
    display: inline-block;
}
.ag-dropdown-menu {
    display: none;
    position: absolute;
    right: 0;
    top: calc(100% + 10px);
    background-color: var(--ag-bg-surface);
    min-width: 200px;
    box-shadow: 0 10px 20px rgba(0,0,0,0.4);
    border: 1px solid var(--ag-border);
    border-radius: 8px;
    z-index: 1000;
    overflow: hidden;
    animation: ag-fade-in 0.2s ease-out;
}
.ag-dropdown-menu.show {
    display: block;
}
.ag-dropdown-item {
    padding: 12px 16px;
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--ag-text-primary);
    transition: background 0.2s;
    font-size: 0.95rem;
}
.ag-dropdown-item:hover {
    background-color: var(--ag-bg-base);
    color: var(--ag-accent);
}
.ag-dropdown-divider {
    height: 1px;
    background-color: var(--ag-border);
    margin: 4px 0;
}

/* --- VANILLA MODALS --- */
.ag-modal-overlay {
    display: none;
    position: fixed;
    top: 0; left: 0; width: 100vw; height: 100vh;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(4px);
    z-index: 2000;
    justify-content: center;
    align-items: center;
    animation: ag-fade-in 0.2s ease-out;
}
.ag-modal-overlay.show {
    display: flex;
}
/* =========================================
   SUMMERNOTE LITE - ANTIGRAVITY THEME
   ========================================= */
.note-editor.note-frame {
    border: 1px solid var(--ag-border) !important;
    border-radius: 8px !important;
    background: var(--ag-bg-base) !important;
    overflow: hidden;
}
.note-editor .note-toolbar {
    background: var(--ag-bg-surface) !important;
    border-bottom: 1px solid var(--ag-border) !important;
    margin: 0 !important;
    padding: 10px !important;
}
.note-editor .note-btn {
    background: var(--ag-bg-base) !important;
    border: 1px solid var(--ag-border) !important;
    color: var(--ag-text-primary) !important;
}
.note-editor .note-btn:hover {
    background: var(--ag-bg-surface-elevated) !important;
}
.note-editor .note-editable {
    background: var(--ag-bg-base) !important;
    color: var(--ag-text-primary) !important;
    padding: 15px !important;
}
.note-editor .note-statusbar {
    background: var(--ag-bg-surface) !important;
    border-top: 1px solid var(--ag-border) !important;
}

.ag-modal {
    background: var(--ag-bg-surface);
    border: 1px solid var(--ag-border);
    border-radius: 12px;
    width: 90%;
    max-width: 600px;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: 0 15px 35px rgba(0,0,0,0.5);
    display: flex;
    flex-direction: column;
}
.ag-modal-large {
    max-width: 900px;
}
.ag-modal-header {
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid var(--ag-border);
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.ag-modal-title {
    margin: 0;
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--ag-text-primary);
}
.ag-modal-close {
    background: transparent;
    border: none;
    color: var(--ag-text-secondary);
    font-size: 1.5rem;
    cursor: pointer;
    line-height: 1;
}
.ag-modal-close:hover {
    color: var(--ag-danger);
}
.ag-modal-body {
    padding: 1.5rem;
    flex: 1;
}
.ag-modal-footer {
    padding: 1.25rem 1.5rem;
    border-top: 1px solid var(--ag-border);
    display: flex;
    justify-content: flex-end;
    gap: 12px;
}
.ag-modal-footer .ag-btn {
    margin: 0;
}