@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

:root {
    --primary: #2563eb;
    --primary-hover: #1d4ed8;
    --primary-light: #eff6ff;
    --primary-border: #bfdbfe;
    --success: #10b981;
    --success-light: #ecfdf5;
    --warning: #f59e0b;
    --warning-light: #fffbeb;
    --danger: #ef4444;
    --danger-light: #fef2f2;
    --gray-50: #f8fafc;
    --gray-100: #f1f5f9;
    --gray-200: #e2e8f0;
    --gray-300: #cbd5e1;
    --gray-400: #94a3b8;
    --gray-500: #64748b;
    --gray-600: #475569;
    --gray-700: #334155;
    --gray-800: #1e293b;
    --gray-900: #0f172a;
    --surface: #ffffff;
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 14px;
    --radius-full: 9999px;
    --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);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
    --transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

h1, h2, h3, h4, h5, h6, .page-title, .page-subtitle {
    outline: none !important;
    box-shadow: none !important;
    border: none !important;
}

h1:focus, h2:focus, h3:focus, h4:focus, h5:focus, h6:focus, .page-title:focus, [tabindex]:focus {
    outline: none !important;
    box-shadow: none !important;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background-color: var(--gray-50);
    color: var(--gray-800);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
}

.app-container {
    display: flex;
    min-height: 100vh;
    flex-direction: column;
}

@media (min-width: 992px) {
    .app-container {
        flex-direction: row;
    }
}

/* Mobile Header App Bar */
.mobile-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 16px;
    background: var(--gray-900);
    color: #fff;
    position: sticky;
    top: 0;
    z-index: 40;
    box-shadow: var(--shadow-sm);
}

@media (min-width: 992px) {
    .mobile-header {
        display: none;
    }
}

.hamburger-btn {
    background: none;
    border: none;
    color: #fff;
    cursor: pointer;
    padding: 6px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.hamburger-btn:hover {
    background: var(--gray-800);
}

.hamburger-btn svg {
    width: 24px;
    height: 24px;
}

.mobile-brand {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 700;
    font-size: 1.05rem;
    letter-spacing: 0.02em;
    color: #fff;
}

.mobile-backdrop {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(15, 23, 42, 0.6);
    backdrop-filter: blur(4px);
    z-index: 45;
    animation: fadeIn 0.2s ease-out;
}

/* Sidebar Responsive Off-canvas */
.app-sidebar {
    background: var(--gray-900);
    color: var(--gray-100);
    width: 280px;
    flex-shrink: 0;
    display: flex;
    flex-direction: column;
}

@media (max-width: 991.98px) {
    .app-sidebar {
        position: fixed;
        top: 0;
        left: 0;
        bottom: 0;
        z-index: 50;
        transform: translateX(-100%);
        transition: transform 0.25s cubic-bezier(0.4, 0, 0.2, 1);
        box-shadow: var(--shadow-xl);
    }

    .app-sidebar.open {
        transform: translateX(0);
    }
}

@media (min-width: 992px) {
    .app-sidebar {
        width: 260px;
        min-height: 100vh;
        position: sticky;
        top: 0;
        transform: none !important;
    }
    .mobile-backdrop {
        display: none !important;
    }
}

.sidebar-header-wrapper {
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid var(--gray-800);
}

.sidebar-brand {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 18px 20px;
    font-weight: 700;
    font-size: 1.15rem;
    color: #fff;
    text-decoration: none;
    flex: 1;
}

.sidebar-brand svg {
    width: 28px;
    height: 28px;
    color: #60a5fa;
}

.sidebar-close-btn {
    display: none;
    background: none;
    border: none;
    color: var(--gray-400);
    cursor: pointer;
    padding: 8px;
    margin-right: 12px;
    border-radius: var(--radius-sm);
    transition: var(--transition);
}

.sidebar-close-btn:hover {
    color: #fff;
    background: var(--gray-800);
}

@media (max-width: 991.98px) {
    .sidebar-close-btn {
        display: flex;
        align-items: center;
        justify-content: center;
    }
}

.sidebar-nav {
    display: flex;
    flex-direction: column;
    padding: 12px 8px;
    gap: 4px;
    flex: 1;
    overflow-y: auto;
}

.nav-section-title {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--gray-400);
    padding: 10px 12px 4px;
    font-weight: 600;
}


.nav-item-link {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 14px;
    border-radius: var(--radius-md);
    color: var(--gray-300);
    text-decoration: none;
    font-size: 0.925rem;
    font-weight: 500;
    transition: var(--transition);
}

.nav-item-link:hover {
    background-color: var(--gray-800);
    color: #fff;
}

.nav-item-link.active {
    background-color: var(--primary);
    color: #fff;
}

.nav-item-link svg {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
}

.app-main {
    flex: 1;
    display: flex;
    flex-direction: column;
    min-width: 0;
}

.app-header {
    background: var(--surface);
    border-bottom: 1px solid var(--gray-200);
    padding: 14px 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: sticky;
    top: 0;
    z-index: 20;
}

.page-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--gray-900);
}

.page-subtitle {
    font-size: 0.85rem;
    color: var(--gray-500);
}

.app-content {
    padding: 16px;
    flex: 1;
    max-width: 1600px;
    width: 100%;
    margin: 0 auto;
}

@media (min-width: 768px) {
    .app-content {
        padding: 24px;
    }
}

.card {
    background: var(--surface);
    border-radius: var(--radius-lg);
    border: 1px solid var(--gray-200);
    box-shadow: var(--shadow-sm);
    padding: 20px;
    margin-bottom: 20px;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-weight: 600;
    font-size: 0.9rem;
    padding: 10px 18px;
    min-height: 44px;
    border-radius: var(--radius-md);
    border: 1px solid transparent;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    white-space: nowrap;
    touch-action: manipulation;
}

.btn-primary {
    background-color: var(--primary);
    color: #fff;
}
.btn-primary:hover {
    background-color: var(--primary-hover);
}

.btn-secondary {
    background-color: var(--gray-100);
    color: var(--gray-700);
    border-color: var(--gray-300);
}
.btn-secondary:hover {
    background-color: var(--gray-200);
}

.btn-danger {
    background-color: var(--danger-light);
    color: var(--danger);
    border-color: #fca5a5;
}
.btn-danger:hover {
    background-color: var(--danger);
    color: #fff;
}

.btn-sm {
    padding: 6px 12px;
    min-height: 34px;
    font-size: 0.825rem;
}

.form-group {
    margin-bottom: 16px;
}

.form-label {
    display: block;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--gray-700);
    margin-bottom: 6px;
}

.form-label .required-star {
    color: var(--danger);
    margin-left: 2px;
}

.form-control {
    width: 100%;
    padding: 10px 14px;
    min-height: 44px;
    border-radius: var(--radius-md);
    border: 1px solid var(--gray-300);
    background-color: #fff;
    font-size: 0.95rem;
    color: var(--gray-800);
    transition: var(--transition);
    box-sizing: border-box;
}

input[type="date"].form-control,
input[type="datetime-local"].form-control,
input[type="time"].form-control {
    text-align: left !important;
    min-height: 44px;
    line-height: 1.5;
    width: 100%;
    box-sizing: border-box;
    -webkit-appearance: none;
    appearance: none;
}

input[type="date"]::-webkit-date-and-time-value,
input[type="datetime-local"]::-webkit-date-and-time-value,
input[type="time"]::-webkit-date-and-time-value {
    text-align: left !important;
    min-height: 1.4em;
    padding: 0;
    margin: 0;
}

.form-control:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}

.form-control:disabled, .form-control[readonly] {
    background-color: var(--gray-100);
    color: var(--gray-500);
    cursor: not-allowed;
}

.form-hint {
    font-size: 0.8rem;
    color: var(--gray-500);
    margin-top: 4px;
}

.form-error {
    font-size: 0.8rem;
    color: var(--danger);
    margin-top: 4px;
}

.switch {
    position: relative;
    display: inline-block;
    width: 48px;
    height: 26px;
}

.switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--gray-300);
    transition: .3s;
    border-radius: var(--radius-full);
}

.slider:before {
    position: absolute;
    content: "";
    height: 20px;
    width: 20px;
    left: 3px;
    bottom: 3px;
    background-color: white;
    transition: .3s;
    border-radius: 50%;
}

input:checked + .slider {
    background-color: var(--primary);
}

input:checked + .slider:before {
    transform: translateX(22px);
}

.drawer-backdrop {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(15, 23, 42, 0.55);
    backdrop-filter: blur(3px);
    z-index: 50;
    display: flex;
    justify-content: flex-end;
    animation: fadeIn 0.2s ease-out;
}

.drawer-panel {
    background: var(--surface);
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    box-shadow: var(--shadow-xl);
    animation: slideUp 0.25s ease-out;
    z-index: 51;
}

@media (min-width: 768px) {
    .drawer-panel {
        max-width: 600px;
        animation: slideLeft 0.25s ease-out;
    }
}

@media (min-width: 1200px) {
    .drawer-panel.wide {
        max-width: 800px;
    }
}

.drawer-header {
    padding: 16px 20px;
    border-bottom: 1px solid var(--gray-200);
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: var(--gray-50);
}

.drawer-title {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--gray-900);
}

.drawer-body {
    padding: 20px;
    flex: 1;
    overflow-y: auto;
}

.drawer-footer {
    padding: 16px 20px;
    border-top: 1px solid var(--gray-200);
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 12px;
    background: var(--gray-50);
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes slideLeft {
    from { transform: translateX(100%); }
    to { transform: translateX(0); }
}

@keyframes slideUp {
    from { transform: translateY(100%); }
    to { transform: translateY(0); }
}

.data-table-container {
    overflow-x: auto;
    border-radius: var(--radius-lg);
    border: 1px solid var(--gray-200);
    background: var(--surface);
}

.data-table {
    width: max-content;
    min-width: 100%;
    border-collapse: collapse;
    text-align: left;
    font-size: 0.925rem;
}

.data-table th {
    background: var(--gray-50);
    color: var(--gray-700);
    font-weight: 600;
    padding: 14px 16px;
    border-bottom: 1px solid var(--gray-200);
    white-space: nowrap;
    user-select: none;
}

.data-table th.sortable {
    cursor: pointer;
}

.data-table th.sortable:hover {
    background: var(--gray-100);
    color: var(--primary);
}

.data-table td {
    padding: 14px 16px;
    border-bottom: 1px solid var(--gray-100);
    color: var(--gray-700);
    vertical-align: middle;
}

.data-table tbody tr:hover {
    background-color: var(--gray-50);
}

.badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 4px 10px;
    border-radius: var(--radius-full);
    font-size: 0.775rem;
    font-weight: 600;
    line-height: 1;
}

.badge-primary { background: var(--primary-light); color: var(--primary); }
.badge-success { background: var(--success-light); color: var(--success); }
.badge-warning { background: var(--warning-light); color: var(--warning); }
.badge-danger { background: var(--danger-light); color: var(--danger); }
.badge-gray { background: var(--gray-100); color: var(--gray-600); }

.profile-card {
    background: var(--surface);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    padding: 16px;
    margin-bottom: 12px;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.profile-card:hover {
    box-shadow: var(--shadow-md);
    border-color: var(--primary-border);
}

.profile-card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 10px;
}

.profile-card-title {
    font-weight: 700;
    font-size: 1.05rem;
    color: var(--gray-900);
}

.profile-card-fields {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
    gap: 8px 16px;
    font-size: 0.875rem;
    margin-bottom: 12px;
}

.profile-card-field-label {
    color: var(--gray-500);
    font-size: 0.775rem;
}

.profile-card-field-val {
    font-weight: 500;
    color: var(--gray-800);
    word-break: break-word;
}

.profile-card-actions {
    display: flex;
    gap: 8px;
    justify-content: flex-end;
    border-top: 1px solid var(--gray-100);
    padding-top: 10px;
}

.pagination-bar {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 16px 0;
}

.pagination-info {
    font-size: 0.875rem;
    color: var(--gray-600);
}

.pagination-controls {
    display: flex;
    gap: 6px;
    align-items: center;
}

.page-btn {
    min-width: 38px;
    height: 38px;
    padding: 0 10px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-md);
    border: 1px solid var(--gray-300);
    background: #fff;
    color: var(--gray-700);
    font-weight: 600;
    font-size: 0.875rem;
    cursor: pointer;
    transition: var(--transition);
}

.page-btn:hover:not(:disabled) {
    background: var(--gray-100);
    color: var(--primary);
}

.page-btn.active {
    background: var(--primary);
    color: #fff;
    border-color: var(--primary);
}

.page-btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.search-toolbar {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-bottom: 16px;
}

@media (min-width: 768px) {
    .search-toolbar {
        flex-direction: row;
        align-items: center;
        justify-content: space-between;
    }
}

.search-box-wrapper {
    position: relative;
    flex: 1;
    max-width: 500px;
}

.search-input {
    padding-left: 40px;
    padding-right: 36px;
}

.search-icon {
    position: absolute;
    left: 12px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--gray-400);
    pointer-events: none;
    width: 20px;
    height: 20px;
}

.search-clear-btn {
    position: absolute;
    right: 10px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--gray-400);
    cursor: pointer;
    padding: 4px;
}

.advanced-search-panel {
    background: var(--gray-50);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    padding: 16px;
    margin-bottom: 16px;
    animation: fadeIn 0.2s ease-out;
}

.advanced-search-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 12px;
}

@media (min-width: 768px) {
    .advanced-search-grid {
        grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    }
}

.form-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 16px;
}

@media (min-width: 768px) {
    .form-grid.two-columns {
        grid-template-columns: 1fr 1fr;
    }
}

.grid-view-desktop {
    display: none;
}
@media (min-width: 768px) {
    .grid-view-desktop {
        display: block;
    }
}

.grid-view-mobile {
    display: block;
}
@media (min-width: 768px) {
    .grid-view-mobile {
        display: none;
    }
}