:root {
    --bg-primary: #111827;
    --bg-secondary: #1f2937;
    --bg-tertiary: #374151;

    --text-primary: #f9fafb;
    --text-secondary: #d1d5db;

    --accent: #0066cc;
    --accent-hover: #0052a3;

    --border: #4b5563;

    --danger-bg: rgba(255, 0, 0, 0.15);
    --danger-border: rgba(255, 0, 0, 0.4);

    --success-bg: rgba(34, 197, 94, 0.15);
    --success-border: rgba(34, 197, 94, 0.45);

    --warning-bg: rgba(234, 179, 8, 0.15);
    --warning-border: rgba(234, 179, 8, 0.45);
}

/* Base */

* {
    box-sizing: border-box;
}

html,
body {
    margin: 0;
    padding: 0;
    min-height: 100%;
}

body {
    display: flex;
    flex-direction: column;
    min-height: 100vh;

    background: var(--bg-primary);
    color: var(--text-primary);

    font-family: Arial, Helvetica, sans-serif;
}

a {
    color: inherit;
}

/* Layout */

.content {
    flex: 1;
    padding: 20px;
}

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

    margin-bottom: 20px;
}

.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 20px;
}

.card {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 20px;
}

/* Top Navigation */

.topbar {
    height: 60px;

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

    padding: 0 20px;

    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border);
}

.topbar-left,
.topbar-right {
    display: flex;
    align-items: center;
    gap: 10px;
}

.topbar-left {
    gap: 16px;
}

.app-title {
    color: var(--text-primary);
    font-size: 1.1rem;
    font-weight: 700;
    text-decoration: none;
}

.location-switcher {
    display: flex;
    align-items: center;
}

/* Bottom Tabs */

.bottom-tabs {
    height: 60px;

    display: flex;
    justify-content: center;
    align-items: center;
    gap: 10px;

    background: var(--bg-secondary);
    border-top: 1px solid var(--border);
}

/* Buttons / Links */

.nav-button,
.tab {
    display: inline-flex;
    align-items: center;
    justify-content: center;

    background: var(--bg-tertiary);
    color: var(--text-primary);

    border: 1px solid var(--border);
    border-radius: 6px;

    text-decoration: none;
    cursor: pointer;
}

.nav-button {
    padding: 8px 12px;
}

.tab {
    padding: 10px 16px;
}

.nav-button:hover,
.tab:hover {
    background: var(--accent);
}

/* Forms */

.form-container {
    width: 100%;
    max-width: 420px;

    margin: 40px auto;
}

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

.form-label {
    display: block;
    margin-bottom: 6px;
}

.form-input,
.form-textarea,
.nav-select {
    width: 100%;

    padding: 10px;

    background: var(--bg-tertiary);
    color: var(--text-primary);

    border: 1px solid var(--border);
    border-radius: 6px;
}

.form-textarea {
    min-height: 120px;
    resize: vertical;
}

.nav-select {
    min-width: 220px;
}

.form-button {
    width: 100%;

    padding: 10px;

    background: var(--accent);
    color: white;

    border: none;
    border-radius: 6px;

    cursor: pointer;
}

.form-button:hover {
    background: var(--accent-hover);
}

/* Messages */

.error-message {
    margin-bottom: 16px;
    padding: 10px;

    border-radius: 6px;

    background: var(--danger-bg);
    border: 1px solid var(--danger-border);
}

/* Detail Tables */

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

.detail-table th {
    width: 180px;
    text-align: left;
    padding: 8px;
    color: var(--text-secondary);
    vertical-align: top;
}

.detail-table td {
    padding: 8px;
}

/* Data Tables */

.data-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 20px;
}

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

.data-table th {
    color: var(--text-secondary);
    font-weight: 600;
}

/* Ports */

.port-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(130px, 1fr));
    gap: 10px;
    margin-top: 20px;
}

.port-card {
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 12px;
    text-align: center;
}

.port-card-link {
    color: var(--text-primary);
    text-decoration: none;
}

.port-card-link:hover {
    background: var(--accent);
}

.port-label {
    font-weight: 600;
}

.port-connection {
    margin-top: 8px;
    color: var(--text-secondary);
    font-size: 0.85rem;
    line-height: 1.3;
}

.port-connected {
    border-color: var(--success-border);
    background: var(--success-bg);
}

.port-available {
    border-color: var(--border);
}

/* Connection Badges */

.connection-status {
    display: inline-flex;
    align-items: center;
    justify-content: center;

    padding: 4px 8px;

    border-radius: 999px;

    font-size: 0.8rem;
    font-weight: 700;
}

.connection-status-connected {
    background: var(--success-bg);
    border: 1px solid var(--success-border);
}

.connection-status-available {
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    color: var(--text-secondary);
}

.cable-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;

    padding: 4px 8px;

    background: var(--accent);
    color: white;

    border-radius: 6px;

    font-size: 0.8rem;
    font-weight: 700;
    text-decoration: none;
}

.cable-badge:hover {
    background: var(--accent-hover);
}

.vlan-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;

    padding: 4px 8px;

    background: var(--bg-tertiary);
    color: var(--text-primary);

    border: 1px solid var(--border);
    border-radius: 6px;

    font-size: 0.8rem;
    font-weight: 700;
    text-decoration: none;
}

.vlan-badge:hover {
    background: var(--accent);
}

.port-vlan {
    margin-top: 8px;
    color: var(--text-secondary);
    font-size: 0.8rem;
    line-height: 1.3;
}

.vlan-mode-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;

    padding: 3px 7px;

    background: var(--bg-tertiary);
    color: var(--text-secondary);

    border: 1px solid var(--border);
    border-radius: 999px;

    font-size: 0.75rem;
    font-weight: 700;
    text-transform: capitalize;
}
/* SSIDs */

.ssid-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;

    padding: 4px 8px;

    background: var(--bg-tertiary);
    color: var(--text-primary);

    border: 1px solid var(--border);
    border-radius: 6px;

    font-size: 0.8rem;
    font-weight: 700;
    text-decoration: none;
}

.ssid-badge:hover {
    background: var(--accent);
}

.password-hidden {
    color: var(--text-secondary);
    font-style: italic;
}
.warning-message {
    margin-bottom: 16px;
    padding: 10px;

    border-radius: 6px;

    background: var(--warning-bg);
    border: 1px solid var(--warning-border);
}

.success-message {
    margin-bottom: 16px;
    padding: 10px;

    border-radius: 6px;

    background: var(--success-bg);
    border: 1px solid var(--success-border);
}

/* Device Type Icons */

.device-card-header {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 15px;
}

.device-detail-header {
    display: flex;
    align-items: center;
    gap: 20px;
}

.device-type-icon {
    width: 48px;
    height: 48px;
    object-fit: contain;
    flex-shrink: 0;
}

.device-detail-icon {
    width: 72px;
    height: 72px;
    object-fit: contain;
    flex-shrink: 0;
}

.device-type-icon-placeholder {
    display: flex;
    align-items: center;
    justify-content: center;

    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: 8px;

    color: var(--text-secondary);
    font-weight: bold;
}