/**
 * Minimal SaaS Style
 * Based on Linear/Notion design principles
 * Version: v1.5.0
 * No external dependencies
 */

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

/* ===== CSS Variables ===== */
:root {
    /* Light Mode Colors */
    --bg-primary: #ffffff;
    --bg-secondary: #fafafa;
    --bg-tertiary: #f5f5f5;
    --text-primary: #171717;
    --text-secondary: #737373;
    --text-tertiary: #a3a3a3;
    --border: #e5e5e5;
    --accent: #0070f3;
    --accent-hover: #0060df;
    --success: #00c853;
    --warning: #ff9800;
    --danger: #ff1744;
    --info: #2196f3;

    /* Spacing */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;

    /* Border Radius */
    --radius-sm: 6px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;

    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.07);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
}

[data-theme="dark"] {
    --bg-primary: #000000;
    --bg-secondary: #111111;
    --bg-tertiary: #1a1a1a;
    --text-primary: #ededed;
    --text-secondary: #a3a3a3;
    --text-tertiary: #737373;
    --border: #262626;
    --accent: #0070f3;
    --accent-hover: #3291ff;
    --success: #00e676;
    --warning: #ffc107;
    --danger: #ff5252;

    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.5);
}

/* ===== Reset & Base ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 16px;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    transition: background 0.2s ease, color 0.2s ease;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ===== Typography ===== */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.2;
    letter-spacing: -0.02em;
}

h1 { font-size: 32px; }
h2 { font-size: 24px; }
h3 { font-size: 20px; }
h4 { font-size: 18px; }
h5 { font-size: 16px; }
h6 { font-size: 14px; }

p {
    margin-bottom: var(--spacing-md);
}

a {
    color: var(--accent);
    text-decoration: none;
    transition: color 0.2s ease;
}

a:hover {
    color: var(--accent-hover);
}

small {
    font-size: 13px;
    color: var(--text-secondary);
}

/* ===== Header ===== */
header {
    position: sticky;
    top: 0;
    background: rgba(255, 255, 255, 0.8);
    border-bottom: 1px solid var(--border);
    padding: 0 var(--spacing-lg);
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    z-index: 100;
    backdrop-filter: blur(8px);
    transition: background 0.2s ease;
}

[data-theme="dark"] header {
    background: rgba(0, 0, 0, 0.8);
}

.logo {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
    text-decoration: none;
}

nav {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
}

nav a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    transition: all 0.2s ease;
}

nav a:hover {
    color: var(--text-primary);
    background: var(--bg-secondary);
}

nav a.active {
    color: var(--text-primary);
    background: var(--bg-tertiary);
}

.header-node-info {
    display: flex;
    align-items: center;
    gap: 12px;
}

.header-node-name {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-primary);
}

.header-node-link {
    text-decoration: none;
    transition: opacity 0.2s;
}

.header-node-link:hover {
    opacity: 0.7;
}

.header-node-ip {
    font-size: 13px;
    color: var(--text-secondary);
    background: var(--bg-secondary);
    padding: 4px 10px;
    border-radius: 4px;
    font-family: 'Monaco', 'Menlo', monospace;
}

.header-separator {
    font-size: 14px;
    color: var(--text-tertiary);
    margin: 0 8px;
}

.header-app-name {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-primary);
}

.header-app-namespace {
    font-size: 13px;
    color: var(--text-secondary);
    background: var(--bg-secondary);
    padding: 4px 10px;
    border-radius: 4px;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

/* ===== Theme Toggle ===== */
.theme-toggle {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-md);
    border: 1px solid var(--border);
    background: var(--bg-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.2s ease;
}

.theme-toggle:hover {
    border-color: var(--accent);
    background: var(--bg-tertiary);
}

.theme-toggle svg {
    width: 20px;
    height: 20px;
    stroke: var(--text-secondary);
}

/* ===== Container ===== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--spacing-xl) var(--spacing-lg);
}

/* ===== Page Header ===== */
.page-header {
    margin-bottom: var(--spacing-xl);
}

.page-header h1 {
    margin-bottom: var(--spacing-xs);
}

.page-header p {
    color: var(--text-secondary);
    font-size: 16px;
    margin-bottom: 0;
}

/* ===== Buttons ===== */
.btn {
    padding: 10px 20px;
    border-radius: var(--radius-md);
    border: none;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
    font-family: inherit;
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    text-decoration: none;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

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

.btn-primary:hover:not(:disabled) {
    background: var(--accent-hover);
    color: white;
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn-primary:active {
    transform: translateY(0);
}

.btn-secondary {
    background: var(--bg-secondary);
    color: var(--text-primary);
    border: 1px solid var(--border);
}

.btn-secondary:hover:not(:disabled) {
    border-color: var(--text-primary);
    background: var(--bg-tertiary);
}

.btn-danger {
    background: var(--danger);
    color: white;
}

.btn-danger:hover:not(:disabled) {
    background: #e60000;
}

.btn-error {
    background: #e5e5e5;
    color: #333;
    border: 1px solid #d4d4d4;
}

.btn-error:hover:not(:disabled) {
    background: #d4d4d4;
    border-color: #a3a3a3;
}

[data-theme="dark"] .btn-error {
    background: #404040;
    color: #ededed;
    border: 1px solid #555;
}

[data-theme="dark"] .btn-error:hover:not(:disabled) {
    background: #4a4a4a;
    border-color: #666;
}

.btn-success {
    background: var(--success);
    color: white;
}

.btn-success:hover:not(:disabled) {
    background: #00a843;
}

.btn-sm {
    padding: 6px 12px;
    font-size: 13px;
}

/* ===== Cards ===== */
.card {
    background: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 0;
    margin-bottom: var(--spacing-lg);
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.card:hover {
    border-color: var(--text-tertiary);
}

.card-header {
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--border);
}

.card-header h2,
.card-header h3 {
    margin-bottom: var(--spacing-xs);
}

.card-header p {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 0;
}

.card-content {
    padding: var(--spacing-lg);
}

.card-actions {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--border);
}

.card-footer {
    padding: var(--spacing-md) var(--spacing-lg);
    border-top: 1px solid var(--border);
    background: var(--bg-secondary);
}

/* ===== Stats Cards ===== */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.stat-card {
    background: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    transition: all 0.2s ease;
}

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

.stat-card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-md);
}

.stat-card-icon {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-md);
    background: var(--bg-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
}

.stat-card-icon svg {
    width: 20px;
    height: 20px;
    stroke: var(--accent);
}

.stat-card-title {
    font-size: 13px;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-weight: 600;
}

.stat-card-value {
    font-size: 32px;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
}

.stat-card-change {
    font-size: 13px;
    color: var(--text-secondary);
}

.stat-card-change.positive {
    color: var(--success);
}

.stat-card-change.negative {
    color: var(--danger);
}

/* Alternative stat card style (for Management pages) */
.stat-label {
    font-size: 13px;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}

.stat-value {
    font-size: 32px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
    line-height: 1;
}

.stat-trend {
    font-size: 13px;
    color: var(--text-secondary);
}

/* ===== Forms ===== */
.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-group label {
    display: block;
    margin-bottom: var(--spacing-sm);
    font-size: 14px;
    font-weight: 500;
    color: var(--text-primary);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    background: var(--bg-secondary);
    color: var(--text-primary);
    font-size: 14px;
    font-family: inherit;
    transition: all 0.2s ease;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent);
    background: var(--bg-primary);
    box-shadow: 0 0 0 3px rgba(0, 112, 243, 0.1);
}

.form-group small {
    display: block;
    margin-top: var(--spacing-xs);
    font-size: 13px;
    color: var(--text-secondary);
}

/* ===== Tables ===== */
.table-container {
    overflow-x: auto;
}

.table {
    width: 100%;
    border-collapse: collapse;
}

.table-header {
    color: var(--text-secondary);
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: var(--spacing-md) var(--spacing-lg);
    border-bottom: 1px solid var(--border);
    text-align: left;
}

.table-row {
    border-bottom: 1px solid var(--border);
    transition: background 0.2s ease;
}

.table-row:hover {
    background: var(--bg-secondary);
}

.table-row:last-child {
    border-bottom: none;
}

.table-cell {
    padding: var(--spacing-md) var(--spacing-lg);
    font-size: 14px;
}

/* ===== Code ===== */
code {
    background: var(--bg-secondary);
    padding: 4px 8px;
    border-radius: var(--radius-sm);
    font-family: 'SF Mono', Monaco, 'Cascadia Code', monospace;
    font-size: 13px;
    color: var(--accent);
}

pre {
    background: var(--bg-secondary);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    overflow-x: auto;
}

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

/* ===== Badges ===== */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 500;
}

.badge-success {
    background: rgba(0, 200, 83, 0.1);
    color: var(--success);
}

.badge-warning {
    background: rgba(255, 152, 0, 0.1);
    color: var(--warning);
}

.badge-danger {
    background: rgba(255, 23, 68, 0.1);
    color: var(--danger);
}

.badge-info {
    background: rgba(33, 150, 243, 0.1);
    color: var(--info);
}

.badge-secondary {
    background: var(--bg-tertiary);
    color: var(--text-tertiary);
}

.status-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: currentColor;
}

/* Pulse animation for loading states */
@keyframes pulse {
    0%, 100% {
        opacity: 1;
        transform: scale(1);
    }
    50% {
        opacity: 0.5;
        transform: scale(0.8);
    }
}

/* ===== Alerts ===== */
.alert {
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-lg);
    border: 1px solid;
}

.alert-success {
    background: rgba(0, 200, 83, 0.1);
    border-color: var(--success);
    color: var(--success);
}

.alert-error {
    background: rgba(255, 23, 68, 0.1);
    border-color: var(--danger);
    color: var(--danger);
}

.alert-info {
    background: rgba(33, 150, 243, 0.1);
    border-color: var(--info);
    color: var(--info);
}

.alert-warning {
    background: rgba(255, 152, 0, 0.1);
    border-color: var(--warning);
    color: var(--warning);
}

/* ===== Dropdown ===== */
.dropdown {
    position: relative;
}

.dropdown-trigger {
    width: 32px;
    height: 32px;
    border-radius: var(--radius-sm);
    border: none;
    background: transparent;
    color: var(--text-secondary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
}

.dropdown-trigger:hover {
    background: var(--bg-secondary);
    color: var(--text-primary);
}

/* ===== Loading ===== */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 2px solid var(--border);
    border-top-color: var(--accent);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

/* ===== Animations ===== */
.animate-in {
    animation: fadeIn 0.3s ease-out;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(8px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ===== Utilities ===== */
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-left { text-align: left; }

.mt-0 { margin-top: 0; }
.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }
.mt-xl { margin-top: var(--spacing-xl); }

.mb-0 { margin-bottom: 0; }
.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }
.mb-xl { margin-bottom: var(--spacing-xl); }

.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-sm { gap: var(--spacing-sm); }
.gap-md { gap: var(--spacing-md); }
.gap-lg { gap: var(--spacing-lg); }

/* ===== Responsive ===== */
@media (max-width: 768px) {
    .container {
        padding: var(--spacing-lg) var(--spacing-md);
    }

    nav {
        display: none;
    }

    .stats-grid {
        grid-template-columns: 1fr;
    }

    .table-cell,
    .table-header {
        padding: var(--spacing-sm) var(--spacing-md);
    }

    h1 { font-size: 24px; }
    h2 { font-size: 20px; }
}

/* ===== Sub-navigation ===== */
.sub-nav {
    display: flex;
    gap: 8px;
    margin-bottom: 24px;
    padding: 6px;
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
}

.sub-nav a {
    padding: 10px 20px;
    border-radius: var(--radius-md);
    text-decoration: none;
    color: var(--text-secondary);
    font-size: 14px;
    font-weight: 500;
    transition: all 0.2s;
}

.sub-nav a:hover {
    color: var(--text-primary);
    background: var(--bg-primary);
}

.sub-nav a.active {
    color: var(--text-primary);
    background: var(--bg-primary);
    box-shadow: var(--shadow-sm);
}

/* ===== User Badges ===== */
.user-badge {
    display: inline-block;
    padding: 2px 8px;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    border-radius: 3px;
    background-color: var(--accent);
    color: white;
}

/* 旧版本应用标签 */
.user-badge.legacy {
    background-color: #999;
    color: white;
}

/* 用户标签颜色变体（按用户名生成不同颜色） */
.user-badge[data-user="default"] { background-color: #6b7280; }  /* Gray for default namespace */
.user-badge[data-user="eleans"] { background-color: #3b82f6; }
.user-badge[data-user="test"] { background-color: #10b981; }

/* ===== Framework Badges ===== */
.framework-badge {
    display: inline-block;
    padding: 2px 8px;
    background: var(--bg-secondary);
    border-radius: 4px;
    font-size: 12px;
    font-weight: 500;
    color: var(--text-secondary);
}

/* Sandbox framework - slightly darker background, same text color */
.framework-badge.sandbox,
.framework-badge[data-framework="sandbox"] {
    background: var(--bg-tertiary);
}