/* Voyagerouter - Minimalist & Production-Grade Dark Styling */

:root {
    --bg-main: #0b0f17;
    --bg-card: #111827;
    --bg-input: #0b0f17;
    --border-color: #1f293d;
    --border-subtle: #162032;
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --primary: #3b82f6;
    --primary-hover: #2563eb;
    --accent-green: #10b981;
    --accent-green-bg: rgba(16, 185, 129, 0.12);
    --accent-green-border: rgba(16, 185, 129, 0.28);
    --accent-blue: #38bdf8;
    --accent-red: #f87171;
    --accent-red-bg: rgba(239, 68, 68, 0.12);
    --accent-red-border: rgba(239, 68, 68, 0.28);
    --code-bg: #070a10;
    --code-text: #e2e8f0;
    --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
    --radius: 8px;
    --radius-md: 6px;
    --radius-sm: 4px;
    --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.4), 0 1px 2px -1px rgba(0, 0, 0, 0.4);
}

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

html {
    scrollbar-gutter: stable;
}

body {
    font-family: var(--font-sans);
    background-color: var(--bg-main);
    color: var(--text-primary);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* General typography */
code {
    font-family: var(--font-mono);
    font-size: 0.9em;
    background: #162032;
    color: #38bdf8;
    padding: 2px 6px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-color);
}

/* Header */
.site-header {
    background-color: var(--bg-card);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 50;
}

.header-container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 14px 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.brand {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    color: var(--text-primary);
}

.brand-logo {
    width: 28px;
    height: 28px;
    background: linear-gradient(135deg, #3b82f6, #1d4ed8);
    color: white;
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 15px;
    box-shadow: 0 2px 4px rgba(59, 130, 246, 0.3);
}

.brand-name {
    font-size: 17px;
    font-weight: 700;
    letter-spacing: -0.3px;
}

.brand-badge {
    font-size: 11px;
    text-transform: uppercase;
    font-weight: 600;
    letter-spacing: 0.5px;
    background: #1e293b;
    color: var(--text-secondary);
    border: 1px solid #334155;
    padding: 2px 6px;
    border-radius: var(--radius-sm);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 8px;
}

.nav-link {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-secondary);
    text-decoration: none;
    padding: 6px 14px;
    border-radius: var(--radius-md);
    transition: all 0.15s ease;
}

.nav-link:hover {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.05);
}

.nav-link.active {
    color: #60a5fa;
    background: rgba(59, 130, 246, 0.12);
    font-weight: 600;
}

/* Layout */
.main-content {
    flex: 1;
    max-width: 1100px;
    width: 100%;
    margin: 0 auto;
    padding: 36px 20px;
}

/* Typography & Hero */
.hero {
    margin-bottom: 32px;
}

.hero-title {
    font-size: 28px;
    font-weight: 700;
    letter-spacing: -0.5px;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.hero-subtitle {
    font-size: 15px;
    color: var(--text-secondary);
    max-width: 700px;
}

/* Cards */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 24px;
    margin-bottom: 24px;
    box-shadow: var(--shadow-sm);
}

.card-title {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 14px;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 8px;
}

/* Grid KPI Cards */
.kpi-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}

.kpi-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 20px;
    box-shadow: var(--shadow-sm);
}

.kpi-label {
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.kpi-value {
    font-size: 26px;
    font-weight: 700;
    color: var(--text-primary);
}

.kpi-value.green {
    color: var(--accent-green);
}

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

.form-label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 6px;
    color: var(--text-primary);
}

.form-input {
    width: 100%;
    padding: 10px 14px;
    font-size: 14px;
    font-family: var(--font-mono);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    background: var(--bg-input);
    color: var(--text-primary);
    outline: none;
    transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.form-input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.25);
}

.form-input::placeholder {
    color: var(--text-muted);
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 9px 18px;
    font-size: 14px;
    font-weight: 600;
    border-radius: var(--radius-sm);
    cursor: pointer;
    border: 1px solid transparent;
    transition: all 0.15s ease;
    text-decoration: none;
}

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

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

.btn-secondary {
    background: #1e293b;
    border-color: var(--border-color);
    color: var(--text-primary);
}

.btn-secondary:hover {
    background: #334155;
    border-color: #475569;
}

.btn-sm {
    padding: 4px 8px;
    font-size: 12px;
}

/* Tables */
.table-container {
    width: 100%;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
}

.data-table {
    width: 100%;
    min-width: 600px;
    border-collapse: collapse;
    font-size: 13px;
    text-align: left;
}

.data-table th {
    background: #0d131f;
    color: var(--text-secondary);
    font-weight: 600;
    padding: 10px 14px;
    border-bottom: 1px solid var(--border-color);
    white-space: nowrap;
}

.data-table td {
    padding: 11px 14px;
    border-bottom: 1px solid var(--border-subtle);
    color: var(--text-primary);
}

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

.data-table tr:hover td {
    background: rgba(255, 255, 255, 0.02);
}

/* Badges & Status */
.badge {
    display: inline-block;
    padding: 2px 7px;
    border-radius: 4px;
    font-size: 11px;
    font-weight: 600;
}

.badge-success {
    background: var(--accent-green-bg);
    color: #34d399;
    border: 1px solid var(--accent-green-border);
}

.badge-error {
    background: var(--accent-red-bg);
    color: #f87171;
    border: 1px solid var(--accent-red-border);
}

.badge-stream {
    background: rgba(56, 189, 248, 0.12);
    color: #38bdf8;
    border: 1px solid rgba(56, 189, 248, 0.28);
}

/* Code Snippets */
.code-box {
    background: var(--code-bg);
    color: var(--code-text);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 16px;
    font-family: var(--font-mono);
    font-size: 13px;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    position: relative;
    margin-top: 8px;
}

.code-box code, .code-box pre {
    background: transparent;
    border: none;
    padding: 0;
    color: inherit;
    font-family: inherit;
    font-size: inherit;
}

.code-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 8px;
    color: var(--text-secondary);
}

.copy-btn {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-primary);
    border: 1px solid rgba(255, 255, 255, 0.1);
    padding: 4px 10px;
    font-size: 11px;
    font-weight: 600;
    border-radius: 4px;
    cursor: pointer;
    transition: background 0.15s ease, color 0.15s ease;
}

.copy-btn:hover {
    background: rgba(255, 255, 255, 0.2);
    color: #ffffff;
}

/* Tabs */
.tabs {
    display: flex;
    gap: 6px;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 14px;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: thin;
}

.tab-btn {
    padding: 8px 14px;
    font-size: 13px;
    font-weight: 600;
    background: transparent;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    border-bottom: 2px solid transparent;
    white-space: nowrap;
    transition: color 0.15s ease, border-color 0.15s ease;
}

.tab-btn:hover {
    color: var(--text-primary);
}

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

.tab-pane {
    display: none;
}

.tab-pane.active {
    display: block;
}

/* Alerts */
.alert {
    padding: 12px 16px;
    border-radius: var(--radius-sm);
    font-size: 13px;
    margin-bottom: 18px;
}

.alert-error {
    background: var(--accent-red-bg);
    border: 1px solid var(--accent-red-border);
    color: var(--accent-red);
}

.alert-success {
    background: var(--accent-green-bg);
    border: 1px solid var(--accent-green-border);
    color: #34d399;
}

/* Footer */
.site-footer {
    border-top: 1px solid var(--border-color);
    background: var(--bg-card);
    padding: 20px;
    margin-top: auto;
    font-size: 13px;
    color: var(--text-muted);
    text-align: center;
}

.form-row-responsive {
    display: flex;
    gap: 8px;
}

@media (max-width: 640px) {
    .header-container {
        flex-direction: column;
        align-items: flex-start;
        gap: 12px;
    }
    .kpi-grid {
        grid-template-columns: 1fr;
    }
    .form-row-responsive {
        flex-direction: column;
    }
}