/* CSS Variables - Google Material Design 3 inspired */
:root {
    /* Primary colors */
    --md-primary: #1a73e8;
    --md-primary-hover: #1557b0;
    --md-primary-container: #d3e3fd;
    --md-on-primary: #ffffff;
    --md-on-primary-container: #041e49;

    /* Secondary colors */
    --md-secondary: #5f6368;
    --md-secondary-container: #e8eaed;

    /* Surface colors */
    --md-surface: #ffffff;
    --md-surface-dim: #f8f9fa;
    --md-surface-container: #f1f3f4;
    --md-surface-container-high: #e8eaed;

    /* Text colors */
    --md-on-surface: #202124;
    --md-on-surface-variant: #5f6368;

    /* Status colors */
    --md-error: #d93025;
    --md-error-container: #fce8e6;
    --md-success: #1e8e3e;
    --md-success-container: #e6f4ea;
    --md-warning: #f9ab00;
    --md-warning-container: #fef7e0;

    /* Elevation */
    --md-elevation-1: 0 1px 2px 0 rgba(60,64,67,0.3), 0 1px 3px 1px rgba(60,64,67,0.15);
    --md-elevation-2: 0 1px 2px 0 rgba(60,64,67,0.3), 0 2px 6px 2px rgba(60,64,67,0.15);
    --md-elevation-3: 0 1px 3px 0 rgba(60,64,67,0.3), 0 4px 8px 3px rgba(60,64,67,0.15);

    /* Layout */
    --nav-width: 256px;
    --nav-width-collapsed: 72px;
    --app-bar-height: 64px;

    /* Typography */
    --font-brand: 'Google Sans', 'Roboto', sans-serif;
    --font-plain: 'Roboto', sans-serif;

    /* Border radius */
    --md-radius-sm: 8px;
    --md-radius-md: 12px;
    --md-radius-lg: 16px;
    --md-radius-full: 9999px;
}

/* Reset and base */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
}

body {
    font-family: var(--font-plain);
    background-color: var(--md-surface-dim);
    color: var(--md-on-surface);
    line-height: 1.5;
    min-height: 100vh;
}

/* App Bar */
.app-bar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--app-bar-height);
    background: var(--md-surface);
    box-shadow: var(--md-elevation-1);
    display: flex;
    align-items: center;
    padding: 0 16px;
    z-index: 100;
}

.app-bar-title {
    font-family: var(--font-brand);
    font-size: 1.25rem;
    font-weight: 500;
    color: var(--md-on-surface);
    margin-left: 8px;
}

.app-bar-spacer {
    flex: 1;
}

.user-info {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--md-on-surface-variant);
    font-size: 0.875rem;
}

/* Icon Button */
.icon-button {
    width: 48px;
    height: 48px;
    border: none;
    background: transparent;
    border-radius: var(--md-radius-full);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--md-on-surface-variant);
    transition: background-color 0.2s;
}

.icon-button:hover {
    background-color: var(--md-surface-container);
}

/* App Container */
.app-container {
    display: flex;
    padding-top: var(--app-bar-height);
    min-height: 100vh;
}

/* Navigation Drawer */
.nav-drawer {
    position: fixed;
    top: var(--app-bar-height);
    left: 0;
    width: var(--nav-width);
    height: calc(100vh - var(--app-bar-height));
    background: var(--md-surface);
    padding: 12px;
    overflow-y: auto;
    transition: transform 0.25s ease, width 0.25s ease;
    z-index: 50;
}

.nav-collapsed .nav-drawer {
    transform: translateX(calc(-1 * var(--nav-width)));
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    border-radius: var(--md-radius-full);
    text-decoration: none;
    color: var(--md-on-surface-variant);
    font-size: 0.875rem;
    font-weight: 500;
    transition: background-color 0.2s, color 0.2s;
    margin-bottom: 4px;
    white-space: nowrap;
}

.nav-item:hover {
    background-color: var(--md-surface-container);
}

.nav-item.active {
    background-color: var(--md-primary-container);
    color: var(--md-on-primary-container);
}

.nav-item .material-symbols-outlined {
    font-size: 24px;
}

.nav-divider {
    height: 1px;
    background: var(--md-surface-container-high);
    margin: 8px 16px;
}

/* Main Content */
.main-content {
    flex: 1;
    margin-left: var(--nav-width);
    padding: 24px;
    min-height: calc(100vh - var(--app-bar-height));
    transition: margin-left 0.25s ease;
}

.nav-collapsed .main-content {
    margin-left: 0;
}

/* Page Header */
.page-header {
    margin-bottom: 24px;
}

.page-title {
    font-family: var(--font-brand);
    font-size: 1.75rem;
    font-weight: 400;
    color: var(--md-on-surface);
    margin-bottom: 4px;
}

.page-subtitle {
    font-size: 0.875rem;
    color: var(--md-on-surface-variant);
}

/* Cards */
.card {
    background: var(--md-surface);
    border-radius: var(--md-radius-md);
    box-shadow: var(--md-elevation-1);
    overflow: hidden;
}

.card-header {
    padding: 16px 24px;
    border-bottom: 1px solid var(--md-surface-container-high);
}

.card-title {
    font-family: var(--font-brand);
    font-size: 1rem;
    font-weight: 500;
    color: var(--md-on-surface);
}

.card-content {
    padding: 16px 24px;
}

/* Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}

.stat-card {
    background: var(--md-surface);
    border-radius: var(--md-radius-md);
    padding: 20px 24px;
    box-shadow: var(--md-elevation-1);
}

.stat-card.warning {
    border-left: 4px solid var(--md-warning);
}

.stat-card.error {
    border-left: 4px solid var(--md-error);
}

.stat-value {
    font-family: var(--font-brand);
    font-size: 2.25rem;
    font-weight: 400;
    color: var(--md-on-surface);
    line-height: 1;
}

.stat-label {
    font-size: 0.875rem;
    color: var(--md-on-surface-variant);
    margin-top: 4px;
}

/* Data Table */
.data-table {
    width: 100%;
    border-collapse: collapse;
}

.data-table th,
.data-table td {
    padding: 12px 16px;
    text-align: left;
    border-bottom: 1px solid var(--md-surface-container-high);
}

.data-table th {
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--md-on-surface-variant);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    background: var(--md-surface-dim);
}

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

.data-table td {
    font-size: 0.875rem;
}

/* Status Chips */
.chip {
    display: inline-flex;
    align-items: center;
    padding: 4px 12px;
    border-radius: var(--md-radius-full);
    font-size: 0.75rem;
    font-weight: 500;
}

.chip-active {
    background: var(--md-success-container);
    color: var(--md-success);
}

.chip-suspended {
    background: var(--md-error-container);
    color: var(--md-error);
}

.chip-empty {
    background: var(--md-warning-container);
    color: #e37400;
}

.chip-inactive {
    background: var(--md-secondary-container);
    color: var(--md-secondary);
}

.chip-archived {
    background: var(--md-surface-container-high);
    color: var(--md-on-surface-variant);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 24px;
    border-radius: var(--md-radius-full);
    font-family: var(--font-brand);
    font-size: 0.875rem;
    font-weight: 500;
    text-decoration: none;
    border: none;
    cursor: pointer;
    transition: background-color 0.2s, box-shadow 0.2s;
}

.btn-filled {
    background: var(--md-primary);
    color: var(--md-on-primary);
}

.btn-filled:hover {
    background: var(--md-primary-hover);
    box-shadow: var(--md-elevation-1);
}

.btn-outlined {
    background: transparent;
    color: var(--md-primary);
    border: 1px solid var(--md-primary);
}

.btn-outlined:hover {
    background: var(--md-primary-container);
}

.btn-text {
    background: transparent;
    color: var(--md-primary);
    padding: 10px 12px;
}

.btn-text:hover {
    background: var(--md-primary-container);
}

.btn-danger {
    background: var(--md-error);
    color: var(--md-on-primary);
}

.btn-danger:hover {
    background: #c5221f;
}

.btn-sm {
    padding: 6px 16px;
    font-size: 0.8125rem;
}

.btn-icon {
    width: 40px;
    height: 40px;
    padding: 0;
    border-radius: var(--md-radius-full);
}

/* Search Box */
.search-box {
    display: flex;
    align-items: center;
    gap: 12px;
    background: var(--md-surface-container);
    border-radius: var(--md-radius-full);
    padding: 8px 16px;
    margin-bottom: 16px;
}

.search-box .material-symbols-outlined {
    color: var(--md-on-surface-variant);
}

.search-box input {
    flex: 1;
    border: none;
    background: transparent;
    font-size: 1rem;
    color: var(--md-on-surface);
    outline: none;
}

.search-box input::placeholder {
    color: var(--md-on-surface-variant);
}

/* Filter Chips */
.filter-chips {
    display: flex;
    gap: 8px;
    margin-bottom: 16px;
    flex-wrap: wrap;
}

.filter-chip {
    display: inline-flex;
    align-items: center;
    padding: 6px 16px;
    border-radius: var(--md-radius-full);
    font-size: 0.875rem;
    font-weight: 500;
    border: 1px solid var(--md-surface-container-high);
    background: var(--md-surface);
    color: var(--md-on-surface-variant);
    cursor: pointer;
    transition: all 0.2s;
}

.filter-chip:hover {
    background: var(--md-surface-container);
}

.filter-chip.active {
    background: var(--md-primary-container);
    border-color: var(--md-primary-container);
    color: var(--md-on-primary-container);
}

/* Activity List */
.activity-list {
    list-style: none;
}

.activity-item {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 12px 0;
    border-bottom: 1px solid var(--md-surface-container-high);
}

.activity-item:last-child {
    border-bottom: none;
}

.activity-icon {
    width: 40px;
    height: 40px;
    border-radius: var(--md-radius-full);
    background: var(--md-surface-container);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--md-on-surface-variant);
}

.activity-content {
    flex: 1;
}

.activity-action {
    font-weight: 500;
    color: var(--md-on-surface);
}

.activity-target {
    font-size: 0.875rem;
    color: var(--md-on-surface-variant);
}

.activity-meta {
    font-size: 0.75rem;
    color: var(--md-on-surface-variant);
    margin-top: 2px;
}

/* Form Elements */
.form-group {
    margin-bottom: 16px;
}

.form-label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--md-on-surface);
    margin-bottom: 8px;
}

.form-input {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--md-surface-container-high);
    border-radius: var(--md-radius-sm);
    font-size: 1rem;
    color: var(--md-on-surface);
    background: var(--md-surface);
    transition: border-color 0.2s, box-shadow 0.2s;
}

.form-input:focus {
    outline: none;
    border-color: var(--md-primary);
    box-shadow: 0 0 0 2px var(--md-primary-container);
}

.form-select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24'%3E%3Cpath fill='%235f6368' d='M7 10l5 5 5-5z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    padding-right: 40px;
}

/* Section with actions */
.section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 16px;
}

.section-title {
    font-family: var(--font-brand);
    font-size: 1.125rem;
    font-weight: 500;
}

/* Tag/Badge list */
.tag-list {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.tag {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 4px 12px;
    background: var(--md-surface-container);
    border-radius: var(--md-radius-full);
    font-size: 0.8125rem;
    color: var(--md-on-surface-variant);
}

.tag .remove-tag {
    width: 18px;
    height: 18px;
    border: none;
    background: transparent;
    color: var(--md-on-surface-variant);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--md-radius-full);
    margin-left: 2px;
    margin-right: -4px;
}

.tag .remove-tag:hover {
    background: var(--md-surface-container-high);
    color: var(--md-error);
}

/* HTMX loading indicator */
.htmx-indicator {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--md-primary);
    transform: scaleX(0);
    transform-origin: left;
    opacity: 0;
    transition: opacity 0.2s;
    z-index: 1000;
}

.htmx-request .htmx-indicator,
.htmx-indicator.htmx-request {
    opacity: 1;
    animation: htmx-progress 2s ease-in-out infinite;
}

@keyframes htmx-progress {
    0% { transform: scaleX(0); }
    50% { transform: scaleX(0.7); }
    100% { transform: scaleX(1); }
}

/* Toast/Snackbar */
#toast-container {
    position: fixed;
    bottom: 24px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 1000;
}

.toast {
    background: var(--md-on-surface);
    color: var(--md-surface);
    padding: 14px 24px;
    border-radius: var(--md-radius-sm);
    font-size: 0.875rem;
    box-shadow: var(--md-elevation-3);
    animation: toast-in 0.3s ease-out;
}

@keyframes toast-in {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: 48px 24px;
}

.empty-state .material-symbols-outlined {
    font-size: 64px;
    color: var(--md-on-surface-variant);
    opacity: 0.5;
}

.empty-state-title {
    font-family: var(--font-brand);
    font-size: 1.25rem;
    margin-top: 16px;
    color: var(--md-on-surface);
}

.empty-state-description {
    font-size: 0.875rem;
    color: var(--md-on-surface-variant);
    margin-top: 8px;
}

/* User detail specific */
.detail-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 24px;
}

.detail-section {
    background: var(--md-surface);
    border-radius: var(--md-radius-md);
    box-shadow: var(--md-elevation-1);
    padding: 24px;
}

.detail-section-title {
    font-family: var(--font-brand);
    font-size: 1rem;
    font-weight: 500;
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.detail-section-title .material-symbols-outlined {
    color: var(--md-on-surface-variant);
}

/* Action buttons in table */
.action-buttons {
    display: flex;
    gap: 8px;
}

/* Responsive */
@media (max-width: 1024px) {
    /* On mobile, sidebar is hidden by default */
    .nav-drawer {
        transform: translateX(calc(-1 * var(--nav-width)));
        box-shadow: none;
    }

    /* Show sidebar when NOT collapsed on mobile (toggled open) */
    body:not(.nav-collapsed) .nav-drawer {
        transform: translateX(0);
        box-shadow: var(--md-elevation-3);
    }

    .main-content {
        margin-left: 0;
    }

    .nav-collapsed .main-content {
        margin-left: 0;
    }
}

@media (max-width: 600px) {
    .stats-grid {
        grid-template-columns: 1fr 1fr;
    }

    .page-title {
        font-size: 1.5rem;
    }
}

/* Inline form */
.inline-form {
    display: flex;
    gap: 8px;
    align-items: center;
}

.inline-form .form-input {
    flex: 1;
    padding: 8px 12px;
}

/* Delegation type badge */
.delegation-type {
    font-size: 0.6875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: 2px 6px;
    border-radius: 4px;
    background: var(--md-surface-container);
    color: var(--md-on-surface-variant);
}

.delegation-type.full {
    background: var(--md-primary-container);
    color: var(--md-on-primary-container);
}

/* ===== Signatures ===== */
.sig-cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(360px, 1fr));
    gap: 16px;
}

.sig-preview {
    background: var(--md-surface-dim);
    border: 1px solid var(--md-surface-container-high);
    border-radius: var(--md-radius-sm);
    padding: 16px;
    overflow: hidden;
}

.sig-preview-full {
    padding: 24px;
}

/* ===== Global Search ===== */
.global-search {
    position: relative;
    flex: 0 1 480px;
    margin: 0 24px;
}

.global-search-input-wrapper {
    display: flex;
    align-items: center;
    background: var(--md-surface-container);
    border-radius: var(--md-radius-full);
    padding: 0 16px;
    height: 44px;
    transition: box-shadow 0.2s, background-color 0.2s;
}

.global-search-input-wrapper:focus-within {
    background: var(--md-surface);
    box-shadow: var(--md-elevation-2);
}

.global-search-icon {
    color: var(--md-on-surface-variant);
    font-size: 22px;
    margin-right: 8px;
    flex-shrink: 0;
}

.search-category-select {
    appearance: none;
    border: none;
    background: transparent;
    font-family: var(--font-brand);
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--md-primary);
    cursor: pointer;
    padding: 4px 20px 4px 0;
    outline: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24'%3E%3Cpath fill='%231a73e8' d='M7 10l5 5 5-5z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0 center;
    flex-shrink: 0;
}

.search-divider {
    width: 1px;
    height: 24px;
    background: var(--md-surface-container-high);
    margin: 0 12px;
    flex-shrink: 0;
}

.global-search-input-wrapper input[type="search"] {
    flex: 1;
    border: none;
    background: transparent;
    font-size: 0.9375rem;
    color: var(--md-on-surface);
    outline: none;
    min-width: 0;
}

.global-search-input-wrapper input[type="search"]::placeholder {
    color: var(--md-on-surface-variant);
}

/* Remove default search clear button in webkit */
.global-search-input-wrapper input[type="search"]::-webkit-search-cancel-button {
    display: none;
}

.search-clear-btn {
    border: none;
    background: transparent;
    color: var(--md-on-surface-variant);
    cursor: pointer;
    padding: 4px;
    border-radius: var(--md-radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.search-clear-btn:hover {
    background: var(--md-surface-container-high);
}

/* Search results dropdown */
.search-results-dropdown {
    position: absolute;
    top: calc(100% + 4px);
    left: 0;
    right: 0;
    z-index: 200;
}

.search-results-dropdown:empty {
    display: none;
}

.search-results-content {
    background: var(--md-surface);
    border-radius: var(--md-radius-md);
    box-shadow: var(--md-elevation-3);
    max-height: 420px;
    overflow-y: auto;
}

.search-results-header {
    padding: 10px 16px;
    font-size: 0.75rem;
    color: var(--md-on-surface-variant);
    border-bottom: 1px solid var(--md-surface-container-high);
}

.search-result-group {
    border-bottom: 1px solid var(--md-surface-container-high);
}

.search-result-group:last-child {
    border-bottom: none;
}

.search-result-group-label {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px 4px;
    font-size: 0.6875rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--md-on-surface-variant);
}

.search-result-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 16px;
    text-decoration: none;
    color: var(--md-on-surface);
    transition: background-color 0.15s;
    cursor: pointer;
}

.search-result-item:hover {
    background: var(--md-surface-container);
}

.search-result-icon {
    width: 36px;
    height: 36px;
    border-radius: var(--md-radius-full);
    background: var(--md-surface-container);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.search-result-icon .material-symbols-outlined {
    font-size: 20px;
    color: var(--md-on-surface-variant);
}

.search-result-info {
    flex: 1;
    min-width: 0;
}

.search-result-primary {
    font-size: 0.875rem;
    font-weight: 500;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.search-result-secondary {
    font-size: 0.75rem;
    color: var(--md-on-surface-variant);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.search-empty {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 20px 16px;
    color: var(--md-on-surface-variant);
    font-size: 0.875rem;
    justify-content: center;
}

.search-empty .material-symbols-outlined {
    font-size: 20px;
}

/* Keyboard shortcut hint */
.search-shortcut-hint {
    font-size: 0.6875rem;
    color: var(--md-on-surface-variant);
    background: var(--md-surface-container);
    border-radius: 4px;
    padding: 2px 6px;
    margin-left: auto;
    flex-shrink: 0;
}

/* Responsive: hide search on very small screens */
@media (max-width: 600px) {
    .global-search {
        flex: 0 1 44px;
        margin: 0 8px;
    }

    .global-search-input-wrapper input[type="search"],
    .search-category-select,
    .search-divider {
        display: none;
    }

    .global-search.expanded {
        position: fixed;
        top: 8px;
        left: 8px;
        right: 8px;
        flex: none;
        z-index: 150;
    }

    .global-search.expanded .global-search-input-wrapper input[type="search"],
    .global-search.expanded .search-category-select,
    .global-search.expanded .search-divider {
        display: block;
    }
}