/*
 * Amity CSS Design System
 *
 * A minimal, modern design system with light and dark theme support.
 * Uses CSS custom properties for easy theming.
 *
 * Author: Micke Nordin <hej@mic.ke>
 * SPDX-License-Identifier: AGPL-3.0
 */

/* ==================== CSS Custom Properties ==================== */

:root {
    /* Color palette - Light theme (default) */
    --color-bg-primary: #f5f5f5;
    --color-bg-secondary: #ffffff;
    --color-bg-tertiary: #f8f9fa;
    --color-fg-primary: #333333;
    --color-fg-secondary: #7f8c8d;
    --color-fg-muted: #95a5a6;

    /* Accent colors - blue palette */
    --color-accent-primary: #3498db;
    --color-accent-primary-hover: #2980b9;
    --color-accent-secondary: #95a5a6;
    --color-accent-secondary-hover: #7f8c8d;
    --color-accent-success: #27ae60;
    --color-accent-warning: #f39c12;
    --color-accent-danger: #e74c3c;
    --color-accent-danger-hover: #c0392b;
    --color-accent-info: #3498db;

    /* Typography */
    --font-family-base: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    --font-family-mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 2rem;
    --line-height-base: 1.5;
    --line-height-tight: 1.25;

    /* Spacing */
    --spacing-1: 0.25rem;
    --spacing-2: 0.5rem;
    --spacing-3: 0.75rem;
    --spacing-4: 1rem;
    --spacing-5: 1.5rem;
    --spacing-6: 2rem;
    --spacing-8: 3rem;

    /* Borders */
    --border-radius-sm: 0.25rem;
    --border-radius-md: 0.375rem;
    --border-radius-lg: 0.5rem;
    --border-width: 1px;
    --border-color: #ecf0f1;

    /* Shadows */
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 2px 8px rgba(0, 0, 0, 0.15);
    --shadow-lg: 0 4px 6px rgba(0, 0, 0, 0.1);

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;

    /* Layout */
    --header-height: 3.5rem;
    --tabs-height: 2.5rem;
    --container-max-width: 80rem;

    /* Header colors */
    --color-bg-header: #2c3e50;
    --color-text-header: #ffffff;
    --color-text-nav: #ecf0f1;
    --color-text-nav-muted: #bdc3c7;

    /* Alert colors - Light theme */
    --alert-success-bg: #d1e7dd;
    --alert-success-fg: #0f5132;
    --alert-success-border: #badbcc;
    --alert-warning-bg: #fff3cd;
    --alert-warning-fg: #664d03;
    --alert-warning-border: #ffecb5;
    --alert-danger-bg: #f8d7da;
    --alert-danger-fg: #842029;
    --alert-danger-border: #f5c2c7;
    --alert-info-bg: #cff4fc;
    --alert-info-fg: #055160;
    --alert-info-border: #b6effb;
}

/* Dark theme
 * NOTE: These variables are duplicated in @media (prefers-color-scheme: dark)
 * for .theme-system. This is intentional - CSS requires the duplication to
 * support both explicit theme selection and system preference detection.
 */
.theme-dark {
    /* Background colors */
    --color-bg-primary: #1a1a2e;
    --color-bg-secondary: #16213e;
    --color-bg-tertiary: #1f2937;

    /* Text colors */
    --color-fg-primary: #e4e4e7;
    --color-fg-secondary: #a1a1aa;
    --color-fg-muted: #71717a;

    /* Accent colors - lighter blue for dark mode */
    --color-accent-primary: #60a5fa;
    --color-accent-primary-hover: #3b82f6;
    --color-accent-secondary: #9ca3af;
    --color-accent-secondary-hover: #6b7280;
    --color-accent-success: #6ee7b7;
    --color-accent-warning: #fcd34d;
    --color-accent-danger: #fca5a5;
    --color-accent-danger-hover: #f87171;
    --color-accent-info: #60a5fa;

    /* Borders */
    --border-color: #374151;

    /* Shadows */
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 2px 8px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 4px 6px rgba(0, 0, 0, 0.3);

    /* Header */
    --color-bg-header: #0f0f23;
    --color-text-header: #ffffff;
    --color-text-nav: #d4d4d8;
    --color-text-nav-muted: #a1a1aa;

    /* Alert colors - Dark theme */
    --alert-success-bg: #1a3329;
    --alert-success-fg: #6ee7b7;
    --alert-success-border: #2a4d3e;
    --alert-warning-bg: #3d3215;
    --alert-warning-fg: #fcd34d;
    --alert-warning-border: #5c4d22;
    --alert-danger-bg: #3b1d21;
    --alert-danger-fg: #fca5a5;
    --alert-danger-border: #5c2d33;
    --alert-info-bg: #1a2f40;
    --alert-info-fg: #60a5fa;
    --alert-info-border: #2a4560;
}

/* System preference detection - same as .theme-dark but for prefers-color-scheme */
@media (prefers-color-scheme: dark) {
    .theme-system {
        /* Background colors */
        --color-bg-primary: #1a1a2e;
        --color-bg-secondary: #16213e;
        --color-bg-tertiary: #1f2937;

        /* Text colors */
        --color-fg-primary: #e4e4e7;
        --color-fg-secondary: #a1a1aa;
        --color-fg-muted: #71717a;

        /* Accent colors - lighter blue for dark mode */
        --color-accent-primary: #60a5fa;
        --color-accent-primary-hover: #3b82f6;
        --color-accent-secondary: #9ca3af;
        --color-accent-secondary-hover: #6b7280;
        --color-accent-success: #6ee7b7;
        --color-accent-warning: #fcd34d;
        --color-accent-danger: #fca5a5;
        --color-accent-danger-hover: #f87171;
        --color-accent-info: #60a5fa;

        /* Borders */
        --border-color: #374151;

        /* Shadows */
        --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.3);
        --shadow-md: 0 2px 8px rgba(0, 0, 0, 0.4);
        --shadow-lg: 0 4px 6px rgba(0, 0, 0, 0.3);

        /* Header */
        --color-bg-header: #0f0f23;
        --color-text-header: #ffffff;
        --color-text-nav: #d4d4d8;
        --color-text-nav-muted: #a1a1aa;

        /* Alert colors - Dark theme */
        --alert-success-bg: #1a3329;
        --alert-success-fg: #6ee7b7;
        --alert-success-border: #2a4d3e;
        --alert-warning-bg: #3d3215;
        --alert-warning-fg: #fcd34d;
        --alert-warning-border: #5c4d22;
        --alert-danger-bg: #3b1d21;
        --alert-danger-fg: #fca5a5;
        --alert-danger-border: #5c2d33;
        --alert-info-bg: #1a2f40;
        --alert-info-fg: #60a5fa;
        --alert-info-border: #2a4560;
    }
}

/* ==================== Base Reset ==================== */

*,
*::before,
*::after {
    box-sizing: border-box;
}

html {
    font-size: 16px;
    -webkit-text-size-adjust: 100%;
}

body {
    margin: 0;
    padding: 0;
    font-family: var(--font-family-base);
    font-size: var(--font-size-base);
    line-height: var(--line-height-base);
    color: var(--color-fg-primary);
    background-color: var(--color-bg-primary);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* ==================== Typography ==================== */

h1, h2, h3, h4, h5, h6 {
    margin-top: 0;
    margin-bottom: var(--spacing-3);
    font-weight: 600;
    line-height: var(--line-height-tight);
    color: var(--color-fg-primary);
}

h1 { font-size: var(--font-size-3xl); }
h2 { font-size: var(--font-size-2xl); }
h3 { font-size: var(--font-size-xl); }
h4 { font-size: var(--font-size-lg); }
h5 { font-size: var(--font-size-base); }
h6 { font-size: var(--font-size-sm); }

p {
    margin-top: 0;
    margin-bottom: var(--spacing-4);
}

a {
    color: var(--color-accent-primary);
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

small {
    font-size: var(--font-size-sm);
    color: var(--color-fg-muted);
}

code {
    font-family: var(--font-family-mono);
    font-size: var(--font-size-sm);
    padding: var(--spacing-1) var(--spacing-2);
    background-color: var(--color-bg-tertiary);
    border-radius: var(--border-radius-sm);
}

pre {
    font-family: var(--font-family-mono);
    font-size: var(--font-size-sm);
    padding: var(--spacing-4);
    background-color: var(--color-bg-tertiary);
    border-radius: var(--border-radius-md);
    overflow-x: auto;
    margin: var(--spacing-4) 0;
}

pre code {
    padding: 0;
    background: none;
}

hr {
    border: none;
    border-top: var(--border-width) solid var(--border-color);
    margin: var(--spacing-5) 0;
}

/* ==================== Lists ==================== */

ul, ol {
    margin-top: 0;
    margin-bottom: var(--spacing-4);
    padding-left: var(--spacing-6);
}

li {
    margin-bottom: var(--spacing-2);
}

dl {
    margin-top: 0;
    margin-bottom: var(--spacing-4);
}

dt {
    font-weight: 600;
    color: var(--color-fg-secondary);
    margin-bottom: var(--spacing-1);
}

dd {
    margin-left: 0;
    margin-bottom: var(--spacing-3);
}

/* ==================== Layout Components ==================== */

.app-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background-color: var(--color-bg-header);
    color: var(--color-text-header);
}

.app-nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-4);
    min-height: var(--header-height);
    gap: var(--spacing-4);
}

.nav-brand {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--color-text-header);
    text-decoration: none;
}

.nav-brand:hover {
    text-decoration: none;
    color: var(--color-text-nav-muted);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    flex: 1;
}

.nav-link {
    color: var(--color-text-nav);
    font-size: var(--font-size-sm);
    font-weight: 500;
    padding: var(--spacing-2) var(--spacing-4);
    border-radius: var(--border-radius-sm);
    transition: background var(--transition-fast), color var(--transition-fast);
}

.nav-link:hover {
    background: rgba(255, 255, 255, 0.1);
    color: var(--color-text-header);
    text-decoration: none;
}

.nav-link.active {
    background: rgba(255, 255, 255, 0.15);
    color: var(--color-text-header);
    font-weight: 600;
}

.nav-user {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    font-size: var(--font-size-sm);
    color: var(--color-text-nav);
    margin-left: var(--spacing-4);
    padding-left: var(--spacing-4);
    border-left: 1px solid rgba(255, 255, 255, 0.2);
}

.nav-username {
    color: var(--color-text-nav-muted);
}

/* ==================== Tabs Navigation ==================== */

.app-tabs {
    display: flex;
    align-items: center;
    gap: var(--spacing-1);
    background-color: var(--color-bg-secondary);
    border-bottom: var(--border-width) solid var(--border-color);
    padding: 0 var(--spacing-4);
    max-width: var(--container-max-width);
    margin: 0 auto;
    min-height: var(--tabs-height);
}

.tab-link {
    color: var(--color-fg-secondary);
    font-size: var(--font-size-sm);
    font-weight: 500;
    padding: var(--spacing-2) var(--spacing-4);
    border-radius: var(--border-radius-sm) var(--border-radius-sm) 0 0;
    transition: background var(--transition-fast), color var(--transition-fast);
    border-bottom: 2px solid transparent;
    margin-bottom: -1px;
}

.tab-link:hover {
    color: var(--color-accent-primary);
    background: var(--color-bg-tertiary);
    text-decoration: none;
}

.tab-link.active {
    color: var(--color-accent-primary);
    border-bottom-color: var(--color-accent-primary);
    background: var(--color-bg-primary);
}

.app-main {
    flex: 1;
    max-width: var(--container-max-width);
    width: 100%;
    margin: 0 auto;
    padding: var(--spacing-6) var(--spacing-4);
}

.app-footer {
    background-color: var(--color-bg-secondary);
    border-top: var(--border-width) solid var(--border-color);
    padding: var(--spacing-4);
    text-align: center;
    color: var(--color-fg-muted);
}

/* ==================== Cards ==================== */

.card {
    background-color: var(--color-bg-secondary);
    border: var(--border-width) solid var(--border-color);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-sm);
}

.card > header {
    padding: var(--spacing-4);
    border-bottom: var(--border-width) solid var(--border-color);
}

.card > header h2,
.card > header h3 {
    margin: 0;
}

.card-body {
    padding: var(--spacing-4);
}

/* ==================== Buttons ==================== */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-2) var(--spacing-4);
    font-family: inherit;
    font-size: var(--font-size-sm);
    font-weight: 500;
    line-height: var(--line-height-base);
    color: var(--color-fg-primary);
    background-color: var(--color-bg-tertiary);
    border: var(--border-width) solid var(--border-color);
    border-radius: var(--border-radius-md);
    cursor: pointer;
    text-decoration: none;
    transition: all var(--transition-fast);
    white-space: nowrap;
}

.btn:hover {
    background-color: var(--border-color);
    text-decoration: none;
}

.btn--primary {
    color: #ffffff;
    background-color: var(--color-accent-primary);
    border-color: var(--color-accent-primary);
}

.btn--primary:hover {
    background-color: var(--color-accent-primary-hover);
    border-color: var(--color-accent-primary-hover);
}

.btn--secondary {
    color: #ffffff;
    background-color: var(--color-accent-secondary);
    border-color: var(--color-accent-secondary);
}

.btn--secondary:hover {
    background-color: var(--color-accent-secondary-hover);
    border-color: var(--color-accent-secondary-hover);
}

.btn--danger {
    color: #ffffff;
    background-color: var(--color-accent-danger);
    border-color: var(--color-accent-danger);
}

.btn--danger:hover {
    background-color: var(--color-accent-danger-hover);
    border-color: var(--color-accent-danger-hover);
}

.btn--warning {
    color: #212529;
    background-color: var(--color-accent-warning);
    border-color: var(--color-accent-warning);
}

.btn--warning:hover {
    background-color: #e0a800;
    border-color: #d39e00;
}

.btn--small {
    padding: var(--spacing-1) var(--spacing-2);
    font-size: var(--font-size-xs);
}

.btn--block {
    display: flex;
    width: 100%;
}

.btn--disabled,
.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    pointer-events: none;
}

/* Button loading state */
.btn--loading {
    position: relative;
    color: transparent;
    pointer-events: none;
}

.btn--loading::after {
    content: "";
    position: absolute;
    width: 1em;
    height: 1em;
    top: 50%;
    left: 50%;
    margin-top: -0.5em;
    margin-left: -0.5em;
    border: 2px solid currentColor;
    border-right-color: transparent;
    border-radius: 50%;
    animation: btn-spinner 0.6s linear infinite;
}

.btn--loading.btn--primary::after,
.btn--loading.btn--danger::after,
.btn--loading.btn--secondary::after {
    border-color: rgba(255, 255, 255, 0.5);
    border-right-color: transparent;
}

@keyframes btn-spinner {
    to {
        transform: rotate(360deg);
    }
}

/* ==================== Forms ==================== */

input[type="text"],
input[type="password"],
input[type="email"],
input[type="url"],
input[type="number"],
input[type="search"],
input[type="file"],
select,
textarea {
    display: block;
    width: 100%;
    padding: var(--spacing-2) var(--spacing-3);
    font-family: inherit;
    font-size: var(--font-size-base);
    line-height: var(--line-height-base);
    color: var(--color-fg-primary);
    background-color: var(--color-bg-primary);
    border: var(--border-width) solid var(--border-color);
    border-radius: var(--border-radius-md);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

input[type="text"]:focus,
input[type="password"]:focus,
input[type="email"]:focus,
input[type="url"]:focus,
input[type="number"]:focus,
input[type="search"]:focus,
select:focus,
textarea:focus {
    outline: none;
    border-color: var(--color-accent-primary);
    box-shadow: 0 0 0 2px rgba(52, 152, 219, 0.2);
}

.theme-dark input[type="text"]:focus,
.theme-dark input[type="password"]:focus,
.theme-dark input[type="email"]:focus,
.theme-dark input[type="url"]:focus,
.theme-dark input[type="number"]:focus,
.theme-dark input[type="search"]:focus,
.theme-dark select:focus,
.theme-dark textarea:focus {
    box-shadow: 0 0 0 2px rgba(96, 165, 250, 0.25);
}

@media (prefers-color-scheme: dark) {
    .theme-system input[type="text"]:focus,
    .theme-system input[type="password"]:focus,
    .theme-system input[type="email"]:focus,
    .theme-system input[type="url"]:focus,
    .theme-system input[type="number"]:focus,
    .theme-system input[type="search"]:focus,
    .theme-system select:focus,
    .theme-system textarea:focus {
        box-shadow: 0 0 0 2px rgba(96, 165, 250, 0.25);
    }
}

input[type="checkbox"] {
    width: auto;
    margin-right: var(--spacing-2);
}

label {
    display: block;
    margin-bottom: var(--spacing-2);
    font-weight: 500;
    color: var(--color-fg-secondary);
}

.form-group {
    margin-bottom: var(--spacing-4);
}

.form-group label {
    display: block;
}

.form-group small {
    display: block;
    margin-top: var(--spacing-1);
}

.form-inline {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: var(--spacing-3);
}

.form-inline input,
.form-inline select {
    width: auto;
    flex: 0 0 auto;
}

.form-inline label {
    margin-bottom: 0;
}

.input-group {
    display: flex;
    gap: var(--spacing-2);
}

.input-group input {
    flex: 1;
}

.input-group .btn {
    flex-shrink: 0;
}

/* ==================== Tables ==================== */

table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: var(--spacing-4);
}

thead {
    background-color: var(--color-bg-tertiary);
}

th {
    padding: var(--spacing-3) var(--spacing-4);
    text-align: left;
    font-weight: 600;
    color: var(--color-fg-secondary);
    border-bottom: 2px solid var(--border-color);
}

td {
    padding: var(--spacing-3) var(--spacing-4);
    border-bottom: var(--border-width) solid var(--border-color);
    vertical-align: middle;
}

tr:last-child td {
    border-bottom: none;
}

/* ==================== Badges ==================== */

.badge {
    display: inline-flex;
    align-items: center;
    padding: var(--spacing-1) var(--spacing-2);
    font-size: var(--font-size-xs);
    font-weight: 600;
    line-height: 1;
    color: var(--color-fg-secondary);
    background-color: var(--color-bg-tertiary);
    border-radius: var(--border-radius-sm);
    text-transform: uppercase;
    letter-spacing: 0.025em;
}

.badge--primary {
    color: #ffffff;
    background-color: var(--color-accent-primary);
}

.badge--success {
    color: #ffffff;
    background-color: var(--color-accent-success);
}

.badge--warning {
    color: #212529;
    background-color: var(--color-accent-warning);
}

.badge--danger {
    color: #ffffff;
    background-color: var(--color-accent-danger);
}

.badge--info {
    color: #212529;
    background-color: var(--color-accent-info);
}

/* ==================== Alerts ==================== */

.alert {
    padding: var(--spacing-4);
    margin-bottom: var(--spacing-4);
    border: var(--border-width) solid var(--border-color);
    border-radius: var(--border-radius-md);
    background-color: var(--color-bg-secondary);
}

.alert--success {
    color: var(--alert-success-fg);
    background-color: var(--alert-success-bg);
    border-color: var(--alert-success-border);
}

.alert--warning {
    color: var(--alert-warning-fg);
    background-color: var(--alert-warning-bg);
    border-color: var(--alert-warning-border);
}

.alert--danger {
    color: var(--alert-danger-fg);
    background-color: var(--alert-danger-bg);
    border-color: var(--alert-danger-border);
}

.alert--info {
    color: var(--alert-info-fg);
    background-color: var(--alert-info-bg);
    border-color: var(--alert-info-border);
}

/* ==================== Dialogs/Modals ==================== */

dialog {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    max-width: 32rem;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    padding: 0;
    background-color: var(--color-bg-primary);
    border: var(--border-width) solid var(--border-color);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-lg);
    color: var(--color-fg-primary);
}

dialog::backdrop {
    background-color: rgba(0, 0, 0, 0.5);
}

dialog > header {
    padding: var(--spacing-4);
    border-bottom: var(--border-width) solid var(--border-color);
}

dialog > header h3 {
    margin: 0;
}

dialog > footer {
    padding: var(--spacing-4);
    border-top: var(--border-width) solid var(--border-color);
    display: flex;
    justify-content: flex-end;
    gap: var(--spacing-3);
}

dialog p,
dialog ul,
dialog dl,
dialog pre,
dialog h4,
dialog form,
dialog .form-group,
dialog .alert,
dialog hr {
    margin-left: var(--spacing-4);
    margin-right: var(--spacing-4);
}

dialog p,
dialog ul,
dialog dl,
dialog pre {
    margin-top: var(--spacing-3);
    margin-bottom: var(--spacing-3);
}

dialog h4:first-of-type {
    margin-top: var(--spacing-4);
}

dialog form {
    margin-top: var(--spacing-3);
    margin-bottom: var(--spacing-3);
}

dialog hr {
    border: none;
    border-top: var(--border-width) solid var(--border-color);
    margin-top: var(--spacing-4);
    margin-bottom: var(--spacing-4);
}

/* ==================== Grid System ==================== */

.grid {
    display: grid;
    gap: var(--spacing-4);
}

.grid--2 {
    grid-template-columns: repeat(2, 1fr);
}

@media (max-width: 768px) {
    .grid--2 {
        grid-template-columns: 1fr;
    }
}

/* ==================== Flexbox Utilities ==================== */

.flex {
    display: flex;
}

.flex-between {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.stack {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-3);
}

/* ==================== Spacing Utilities ==================== */

.mt-1 { margin-top: var(--spacing-1); }
.mt-2 { margin-top: var(--spacing-2); }
.mt-3 { margin-top: var(--spacing-3); }
.mt-4 { margin-top: var(--spacing-4); }
.mt-5 { margin-top: var(--spacing-5); }
.mt-6 { margin-top: var(--spacing-6); }

.mb-1 { margin-bottom: var(--spacing-1); }
.mb-2 { margin-bottom: var(--spacing-2); }
.mb-3 { margin-bottom: var(--spacing-3); }
.mb-4 { margin-bottom: var(--spacing-4); }

/* ==================== Text Utilities ==================== */

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

.text-truncate {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* ==================== Display Utilities ==================== */

.inline {
    display: inline;
}

.hidden {
    display: none;
}

/* ==================== Login Page ==================== */

.login-container {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: var(--spacing-4);
    background: linear-gradient(135deg, var(--color-bg-header) 0%, var(--color-accent-primary) 100%);
}

.login-container .card {
    width: 100%;
    max-width: 24rem;
    box-shadow: var(--shadow-lg);
}

.login-container h1 {
    text-align: center;
    margin-bottom: var(--spacing-2);
}

.brand-header {
    font-size: var(--font-size-3xl);
    font-weight: 600;
}

.brand-tagline {
    text-align: center;
    color: var(--color-fg-muted);
    font-size: var(--font-size-sm);
    margin-bottom: var(--spacing-5);
}

.login-logo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-2);
    margin-bottom: var(--spacing-2);
}

.login-logo .logo-icon {
    font-size: var(--font-size-3xl);
}

.login-subtitle {
    text-align: center;
    color: var(--color-fg-muted);
    margin-bottom: var(--spacing-5);
}

/* ==================== Divider ==================== */

.divider {
    display: flex;
    align-items: center;
    margin: var(--spacing-5) 0;
    color: var(--color-fg-muted);
}

.divider::before,
.divider::after {
    content: "";
    flex: 1;
    border-bottom: var(--border-width) solid var(--border-color);
}

.divider span {
    padding: 0 var(--spacing-3);
    font-size: var(--font-size-sm);
}

/* ==================== Pagination ==================== */

.pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-3);
}

/* ==================== Theme Selector ==================== */

#theme-select {
    width: auto;
    padding: var(--spacing-1) var(--spacing-2);
    font-size: var(--font-size-xs);
    background-color: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: var(--color-text-nav);
}

#theme-select option {
    background-color: var(--color-bg-primary);
    color: var(--color-fg-primary);
}

/* ==================== Profile Page ==================== */

.profile-page {
    max-width: 48rem;
}

.profile-page h1 {
    margin-bottom: var(--spacing-6);
}

.profile-section {
    background-color: var(--color-bg-secondary);
    border: var(--border-width) solid var(--border-color);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-5);
    margin-bottom: var(--spacing-5);
}

.profile-section h2 {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-4);
    padding-bottom: var(--spacing-3);
    border-bottom: var(--border-width) solid var(--border-color);
}

.profile-form {
    max-width: 24rem;
}

.page-desc {
    color: var(--color-fg-muted);
    margin-bottom: var(--spacing-4);
}

/* Avatar section */
.avatar-section {
    display: flex;
    gap: var(--spacing-5);
    align-items: flex-start;
}

.avatar-preview {
    flex-shrink: 0;
}

.avatar-image {
    width: 6rem;
    height: 6rem;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--border-color);
}

.avatar-placeholder {
    width: 6rem;
    height: 6rem;
    border-radius: 50%;
    background-color: var(--color-accent-primary);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-2xl);
    font-weight: 600;
}

.avatar-form {
    flex: 1;
}

.avatar-actions {
    display: flex;
    gap: var(--spacing-3);
    margin-top: var(--spacing-3);
}

/* Form help text */
.form-help {
    font-size: var(--font-size-sm);
    color: var(--color-fg-muted);
    margin-top: var(--spacing-1);
    margin-bottom: 0;
}

/* Theme options */
.theme-options {
    display: flex;
    gap: var(--spacing-4);
}

.radio-label {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    cursor: pointer;
    font-weight: normal;
}

.radio-label input[type="radio"] {
    width: auto;
    margin: 0;
}

/* Checkbox label */
.checkbox-label {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-2);
    cursor: pointer;
    font-weight: normal;
}

.checkbox-label input[type="checkbox"] {
    margin-top: 0.25em;
}

/* Copy field */
.copy-field {
    display: flex;
    gap: var(--spacing-2);
}

.copy-field input {
    flex: 1;
}

/* Empty state */
.empty-state {
    padding: var(--spacing-6);
    text-align: center;
    color: var(--color-fg-muted);
    background-color: var(--color-bg-tertiary);
    border-radius: var(--border-radius-md);
}

/* Readonly inputs */
.input-readonly {
    background-color: var(--color-bg-tertiary);
    cursor: not-allowed;
}

/* Inline form */
.inline-form {
    display: inline;
}

/* Button icon */
.btn-icon {
    padding: var(--spacing-2);
    min-width: auto;
    background: transparent;
    border: none;
}

.btn-icon:hover {
    background: var(--color-bg-tertiary);
}

.btn-icon-danger:hover {
    color: var(--color-accent-danger);
}

/* SSH keys table */
.ssh-keys-table {
    margin-bottom: var(--spacing-5);
}

/* Add forms */
.add-key-form,
.add-block-form {
    margin-top: var(--spacing-5);
    padding-top: var(--spacing-5);
    border-top: var(--border-width) solid var(--border-color);
}

.add-key-form h3,
.add-block-form h3 {
    font-size: var(--font-size-base);
    margin-bottom: var(--spacing-4);
}

/* ==================== Plugin-style Page Layout ==================== */
/* Unified styles for plugin pages and admin section */

/* Page container - 1000px max width, centered */
.plugin-page {
    max-width: 1000px;
    margin: 0 auto;
    padding: var(--spacing-6);
}

/* Page header with icon and subtitle */
.page-header {
    margin-bottom: var(--spacing-8);
}

.page-header h1 {
    margin: 0 0 var(--spacing-2) 0;
    font-size: 1.75rem;
    font-weight: 600;
    color: var(--color-fg-primary);
}

.page-header .text-muted {
    color: var(--color-fg-muted);
    margin: 0;
}

/* Page tabs navigation */
.page-tabs-container {
    position: relative;
    margin-bottom: var(--spacing-6);
}

.page-tabs {
    display: flex;
    gap: var(--spacing-2);
    border-bottom: var(--border-width) solid var(--border-color);
    padding-bottom: 0;
    background: var(--color-bg-primary);
    position: sticky;
    top: 0;
    z-index: 10;
    overflow-x: auto;
    overflow-y: hidden;
    scroll-behavior: smooth;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none; /* Firefox */
    -ms-overflow-style: none; /* IE/Edge */
    flex-wrap: nowrap;
}

.page-tabs::-webkit-scrollbar {
    display: none; /* Chrome/Safari */
}

.page-tab {
    padding: var(--spacing-3) var(--spacing-5);
    border: none;
    background: none;
    color: var(--color-fg-muted);
    cursor: pointer;
    font-size: 0.9375rem;
    font-weight: 500;
    text-decoration: none;
    border-bottom: 2px solid transparent;
    margin-bottom: -1px;
    transition: color var(--transition-fast), border-color var(--transition-fast);
    white-space: nowrap;
    flex-shrink: 0;
}

.page-tab:hover {
    color: var(--color-fg-primary);
    text-decoration: none;
}

.page-tab.active {
    color: var(--color-accent-primary);
    border-bottom-color: var(--color-accent-primary);
}

/* Badge in tabs */
.page-tab .badge {
    display: inline-block;
    margin-left: var(--spacing-2);
    font-size: var(--font-size-xs);
    padding: 0.125rem var(--spacing-2);
    border-radius: 9999px;
    background: var(--color-bg-tertiary);
    color: var(--color-fg-primary);
}

/* Scroll shadow indicators for page tabs */
.page-tabs-container::before,
.page-tabs-container::after {
    content: '';
    position: absolute;
    top: 0;
    bottom: 1px; /* Account for border */
    width: 60px;
    pointer-events: none;
    z-index: 11;
    opacity: 0;
    transition: opacity var(--transition-fast);
}

.page-tabs-container::before {
    left: 0;
    background: linear-gradient(to right, var(--color-bg-primary) 0%, var(--color-bg-primary) 30%, transparent 100%);
}

.page-tabs-container::after {
    right: 0;
    background: linear-gradient(to left, var(--color-bg-primary) 0%, var(--color-bg-primary) 30%, transparent 100%);
}

.page-tabs-container.scroll-left::before {
    opacity: 1;
}

.page-tabs-container.scroll-right::after {
    opacity: 1;
}

/* ==================== Responsive ==================== */

@media (max-width: 768px) {
    .app-nav {
        flex-direction: column;
        padding: var(--spacing-2);
        gap: var(--spacing-2);
    }

    .nav-brand {
        display: flex;
        justify-content: space-between;
        align-items: center;
        width: 100%;
    }

    .nav-links {
        width: 100%;
        justify-content: flex-start;
        flex-wrap: wrap;
        gap: var(--spacing-1);
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        scrollbar-width: none; /* Firefox */
        -ms-overflow-style: none; /* IE/Edge */
    }

    .nav-links::-webkit-scrollbar {
        display: none; /* Chrome/Safari */
    }

    .nav-link {
        padding: var(--spacing-1) var(--spacing-2);
        font-size: var(--font-size-xs);
        white-space: nowrap;
    }

    .nav-user {
        margin-left: 0;
        padding-left: 0;
        border-left: none;
        padding-top: var(--spacing-2);
        border-top: 1px solid rgba(255, 255, 255, 0.2);
        width: 100%;
        justify-content: center;
    }

    /* Stack tabs on mobile */
    .app-tabs {
        flex-wrap: wrap;
        gap: var(--spacing-1);
    }

    .tab-link {
        padding: var(--spacing-1) var(--spacing-2);
        font-size: var(--font-size-xs);
    }

    /* Tighter main content on mobile */
    .app-main {
        padding: var(--spacing-4) var(--spacing-3);
    }

    .avatar-section {
        flex-direction: column;
        align-items: center;
    }

    .profile-form {
        max-width: 100%;
    }

    .theme-options {
        flex-direction: column;
        gap: var(--spacing-2);
    }

    /* Dialog sizing on mobile */
    dialog {
        max-width: 95%;
        width: 100%;
    }

    /* Form inline becomes vertical on mobile */
    .form-inline {
        flex-direction: column;
        align-items: stretch;
    }

    .form-inline > * {
        width: 100%;
    }

    /* Tables scroll horizontally on mobile */
    table {
        display: block;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }

    /* Plugin-style page on mobile */
    .plugin-page {
        padding: var(--spacing-4) var(--spacing-3);
    }

    .page-header {
        margin-bottom: var(--spacing-5);
    }

    .page-header h1 {
        font-size: 1.5rem;
    }

    .page-tabs {
        gap: var(--spacing-1);
    }

    .page-tab {
        padding: var(--spacing-2) var(--spacing-3);
        font-size: var(--font-size-sm);
    }
}

/* ==================== Toolbar Component ==================== */

.toolbar {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    padding: var(--spacing-3);
    background: var(--color-bg-secondary);
    border-bottom: var(--border-width) solid var(--border-color);
}

.toolbar-group {
    display: flex;
    gap: var(--spacing-2);
}

.toolbar-separator {
    width: 1px;
    height: 1.5rem;
    background: var(--border-color);
    margin: 0 var(--spacing-2);
}

.toolbar-spacer {
    flex: 1;
}

.toolbar-title {
    font-weight: 600;
    color: var(--color-fg-primary);
}

/* ==================== Breadcrumbs Component ==================== */

.breadcrumbs {
    display: flex;
    align-items: center;
    gap: var(--spacing-1);
    font-size: var(--font-size-sm);
    padding: var(--spacing-2) 0;
}

.breadcrumbs a {
    color: var(--color-accent-primary);
    text-decoration: none;
}

.breadcrumbs a:hover {
    text-decoration: underline;
}

.breadcrumbs-separator {
    color: var(--color-fg-muted);
    margin: 0 var(--spacing-1);
}

.breadcrumbs-separator::before {
    content: "/";
}

.breadcrumbs-current {
    color: var(--color-fg-primary);
    font-weight: 500;
}

/* ==================== Checkbox Styling for Tables ==================== */

.table-checkbox {
    appearance: none;
    width: 1.125rem;
    height: 1.125rem;
    border: var(--border-width) solid var(--border-color);
    border-radius: var(--border-radius-sm);
    background: var(--color-bg-primary);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.table-checkbox:checked {
    background: var(--color-accent-primary);
    border-color: var(--color-accent-primary);
    background-image: url("data:image/svg+xml,%3csvg viewBox='0 0 16 16' fill='white' xmlns='http://www.w3.org/2000/svg'%3e%3cpath d='M12.207 4.793a1 1 0 0 1 0 1.414l-5 5a1 1 0 0 1-1.414 0l-2-2a1 1 0 0 1 1.414-1.414L6.5 9.086l4.293-4.293a1 1 0 0 1 1.414 0z'/%3e%3c/svg%3e");
}

.table-checkbox:hover {
    border-color: var(--color-accent-primary);
}

.table-checkbox:focus {
    outline: none;
    box-shadow: 0 0 0 2px rgba(52, 152, 219, 0.2);
}

tr.selected {
    background: rgba(52, 152, 219, 0.1);
}

.theme-dark tr.selected {
    background: rgba(96, 165, 250, 0.15);
}

@media (prefers-color-scheme: dark) {
    .theme-system tr.selected {
        background: rgba(96, 165, 250, 0.15);
    }
}

/* ==================== Context Menu ==================== */

.context-menu {
    position: fixed;
    z-index: 1000;
    min-width: 10rem;
    background: var(--color-bg-secondary);
    border: var(--border-width) solid var(--border-color);
    border-radius: var(--border-radius-md);
    box-shadow: var(--shadow-md);
    padding: var(--spacing-1) 0;
}

.context-menu-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    padding: var(--spacing-2) var(--spacing-4);
    cursor: pointer;
    color: var(--color-fg-primary);
    font-size: var(--font-size-sm);
    transition: background var(--transition-fast);
}

.context-menu-item:hover {
    background: var(--color-bg-tertiary);
}

.context-menu-item--danger {
    color: var(--color-accent-danger);
}

.context-menu-item--danger:hover {
    background: rgba(231, 76, 60, 0.1);
}

.context-menu-item--disabled {
    opacity: 0.5;
    cursor: not-allowed;
    pointer-events: none;
}

.context-menu-separator {
    border-top: var(--border-width) solid var(--border-color);
    margin: var(--spacing-1) 0;
}

.context-menu-icon {
    width: 1rem;
    text-align: center;
}

/* ==================== Drag & Drop Zone ==================== */

.dropzone {
    border: 2px dashed var(--border-color);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-6);
    text-align: center;
    transition: all var(--transition-base);
    background: var(--color-bg-tertiary);
}

.dropzone-content {
    color: var(--color-fg-muted);
}

.dropzone-icon {
    font-size: var(--font-size-3xl);
    margin-bottom: var(--spacing-3);
}

.dropzone-text {
    font-size: var(--font-size-sm);
}

.dropzone.drag-over {
    border-color: var(--color-accent-primary);
    background: rgba(52, 152, 219, 0.05);
}

.theme-dark .dropzone.drag-over {
    background: rgba(96, 165, 250, 0.1);
}

@media (prefers-color-scheme: dark) {
    .theme-system .dropzone.drag-over {
        background: rgba(96, 165, 250, 0.1);
    }
}

/* ==================== Progress Bar ==================== */

.progress {
    height: 0.5rem;
    background: var(--color-bg-tertiary);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
}

.progress-bar {
    height: 100%;
    background: var(--color-accent-primary);
    border-radius: var(--border-radius-lg);
    transition: width var(--transition-base);
}

.progress-bar--success {
    background: var(--color-accent-success);
}

.progress-bar--warning {
    background: var(--color-accent-warning);
}

.progress-bar--danger {
    background: var(--color-accent-danger);
}

.progress--lg {
    height: 1rem;
}

.progress--sm {
    height: 0.25rem;
}

/* ==================== Loading States ==================== */

/* Spinner */
.spinner {
    display: inline-block;
    width: 1.5rem;
    height: 1.5rem;
    border: 2px solid var(--border-color);
    border-top-color: var(--color-accent-primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

.spinner--sm {
    width: 1rem;
    height: 1rem;
}

.spinner--lg {
    width: 2.5rem;
    height: 2.5rem;
    border-width: 3px;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Skeleton loader */
.skeleton {
    background: linear-gradient(
        90deg,
        var(--color-bg-tertiary) 25%,
        var(--border-color) 50%,
        var(--color-bg-tertiary) 75%
    );
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
    border-radius: var(--border-radius-sm);
}

.skeleton-text {
    height: 1rem;
    margin-bottom: var(--spacing-2);
}

.skeleton-text:last-child {
    width: 60%;
}

.skeleton-circle {
    border-radius: 50%;
}

.skeleton-rect {
    border-radius: var(--border-radius-md);
}

@keyframes shimmer {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

/* Loading overlay */
.loading-overlay {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.8);
    z-index: 10;
}

.theme-dark .loading-overlay {
    background: rgba(26, 26, 46, 0.8);
}

@media (prefers-color-scheme: dark) {
    .theme-system .loading-overlay {
        background: rgba(26, 26, 46, 0.8);
    }
}

/* ==================== Sortable Table Headers ==================== */

th.sortable {
    cursor: pointer;
    user-select: none;
    transition: background var(--transition-fast);
}

th.sortable:hover {
    background: var(--color-bg-tertiary);
}

th.sortable::after {
    content: "";
    display: inline-block;
    margin-left: var(--spacing-2);
    opacity: 0.3;
}

th.sort-asc::after {
    content: "↑";
    opacity: 1;
}

th.sort-desc::after {
    content: "↓";
    opacity: 1;
}

/* ==================== Navigation Icons ==================== */

.nav-icon,
.tab-icon {
    margin-right: var(--spacing-1);
}

/* ==================== Error Page ==================== */

.error-page {
    max-width: 36rem;
    margin: var(--spacing-8) auto;
    text-align: center;
}

.error-page .error-icon {
    font-size: 4rem;
    margin-bottom: var(--spacing-4);
    opacity: 0.8;
}

.error-page h1 {
    margin-bottom: var(--spacing-3);
}

.error-page .error-message {
    color: var(--color-fg-secondary);
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-5);
}

.error-page .error-details {
    text-align: left;
    margin-bottom: var(--spacing-5);
    background: var(--color-bg-tertiary);
    border-radius: var(--border-radius-md);
    overflow: hidden;
}

.error-page .error-details summary {
    padding: var(--spacing-3) var(--spacing-4);
    cursor: pointer;
    font-weight: 500;
    background: var(--color-bg-secondary);
    border-bottom: var(--border-width) solid var(--border-color);
}

.error-page .error-details summary:hover {
    background: var(--color-bg-tertiary);
}

.error-page .error-details pre {
    margin: 0;
    padding: var(--spacing-4);
    overflow-x: auto;
    font-size: var(--font-size-sm);
    white-space: pre-wrap;
    word-break: break-word;
}

.error-page .error-actions {
    display: flex;
    justify-content: center;
    gap: var(--spacing-3);
}

/* ==================== Consent Page ==================== */

.consent-page {
    max-width: 36rem;
    margin: var(--spacing-6) auto;
}

.consent-description {
    margin-bottom: var(--spacing-5);
}

.consent-capability {
    background: var(--color-bg-tertiary);
    padding: var(--spacing-5);
    border-radius: var(--border-radius-lg);
    margin-bottom: var(--spacing-5);
}

.consent-capability .capability-description {
    margin: 0;
    font-size: var(--font-size-lg);
}

.consent-warning {
    margin-top: var(--spacing-4);
    margin-bottom: 0;
    color: var(--color-accent-danger);
}

.consent-actions {
    display: flex;
    gap: var(--spacing-4);
    margin-bottom: var(--spacing-4);
}

.consent-note {
    font-size: var(--font-size-sm);
}

/* ==================== Empty State Component ==================== */
/* Use for pages or sections with no content */

.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-8);
    text-align: center;
}

.empty-state-icon {
    font-size: 3rem;
    color: var(--color-fg-muted);
    margin-bottom: var(--spacing-4);
}

.empty-state-title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--color-fg-primary);
    margin-bottom: var(--spacing-2);
}

.empty-state-description {
    color: var(--color-fg-muted);
    margin-bottom: var(--spacing-4);
    max-width: 24rem;
}

.empty-state-actions {
    display: flex;
    gap: var(--spacing-3);
}

/* ==================== Spinner Component ==================== */
/* Use for loading indicators */

@keyframes spin {
    to { transform: rotate(360deg); }
}

.spinner {
    display: inline-block;
    width: 1.25rem;
    height: 1.25rem;
    border: 2px solid var(--color-bg-tertiary);
    border-top-color: var(--color-accent-primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

.spinner--small {
    width: 1rem;
    height: 1rem;
}

.spinner--large {
    width: 2rem;
    height: 2rem;
    border-width: 3px;
}

/* ==================== Loading State Component ==================== */
/* Use for sections that are loading content */

.loading-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-8);
    text-align: center;
}

.loading-state .spinner {
    margin-bottom: var(--spacing-4);
}

.loading-state-text {
    color: var(--color-fg-muted);
}

/* ==================== Skeleton Loading Component ==================== */
/* Use for placeholder content while loading */

@keyframes skeleton-pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.4; }
}

.skeleton {
    background: var(--color-bg-tertiary);
    border-radius: var(--border-radius);
    animation: skeleton-pulse 1.5s ease-in-out infinite;
}

.skeleton-text {
    height: 1rem;
    margin-bottom: var(--spacing-2);
}

.skeleton-text:last-child {
    width: 70%;
    margin-bottom: 0;
}

.skeleton-heading {
    height: 1.5rem;
    width: 40%;
    margin-bottom: var(--spacing-3);
}

.skeleton-avatar {
    width: 2.5rem;
    height: 2.5rem;
    border-radius: 50%;
}

.skeleton-thumbnail {
    width: 100%;
    height: 8rem;
}