/* =====================
   Root Variables
===================== */
:root {
    /* Palette (fixed) */
    --accent-color: #3498db;
    --success-color: #27ae60;
    --danger-color: #e74c3c;
    --warning-color: #f39c12;
    --terminal-green: #00ff00;

    /* Semantic (theme-aware) */
    --bg-body: #f8f9fa;
    --bg-content: #f4f7f6;
    --bg-card: #fff;
    --bg-card-alt: #fdfdfd;
    --bg-stat: #f8f9fa;
    --bg-input: #fff;
    --text-primary: #333;
    --text-secondary: #555;
    --text-value: #222;
    --text-heading: #2c3e50;
    --border-color: #ddd;
    --border-light: #eee;
    --sidebar-bg: #2c3e50;
    --sidebar-hover: #34495e;
    --sidebar-border: #3e4f5f;
    --sidebar-text-muted: #ccc;
    --terminal-header-bg: #333;
    --terminal-bg: #1e1e1e;
    --shadow-card: rgba(0,0,0,0.08);
    --shadow-card-hover: rgba(0,0,0,0.1);
    --shadow-toast: rgba(0,0,0,0.15);
    --provider-bg: #fff;
    --provider-header-bg: #f9fafb;
    --provider-border: #e5e7eb;

    /* Layout tokens */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --transition-fast: 0.2s ease;
}

/* =====================
   Dark Theme
===================== */
[data-theme="dark"] {
    --bg-body: #121212;
    --bg-content: #1a1a2e;
    --bg-card: #1e1e2f;
    --bg-card-alt: #252540;
    --bg-stat: #252540;
    --bg-input: #252540;
    --text-primary: #e0e0e0;
    --text-secondary: #aaa;
    --text-value: #ddd;
    --text-heading: #e0e0e0;
    --border-color: #333;
    --border-light: #2a2a3d;
    --sidebar-bg: #0f0f1a;
    --sidebar-hover: #1a1a2e;
    --sidebar-border: #2a2a3d;
    --sidebar-text-muted: #888;
    --terminal-header-bg: #0f0f1a;
    --terminal-bg: #0a0a14;
    --shadow-card: rgba(0,0,0,0.3);
    --shadow-card-hover: rgba(0,0,0,0.5);
    --shadow-toast: rgba(0,0,0,0.4);
    --provider-bg: #1e1e2f;
    --provider-header-bg: #252540;
    --provider-border: #333;
}

/* =====================
   Base Layout
===================== */
body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--bg-body);
    color: var(--text-primary);
    margin: 0;
    padding: 20px;
}

.app-wrapper {
    display: flex;
    min-height: 100vh;
}

/* =====================
   Sidebar
===================== */
.sidebar {
    width: 260px;
    background: var(--sidebar-bg);
    color: #fff;
    padding: 20px 0;
    flex-shrink: 0;
    display: flex;
    flex-direction: column;
}

.sidebar-brand {
    padding: 20px;
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 1.2rem;
    font-weight: bold;
    border-bottom: 1px solid var(--sidebar-border);
}

.sidebar-logo {
    width: 32px;
    height: 32px;
    object-fit: contain;
}

.nav-links {
    list-style: none;
    padding: 20px 0;
    margin: 0;
    flex: 1;
}

.nav-links li {
    padding: 15px 25px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 10px;
    transition: background var(--transition-fast);
}

.nav-links li:hover,
.nav-links li.active {
    background: var(--sidebar-hover);
    border-left: 4px solid var(--accent-color);
}

.nav-links li [data-lucide] {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
}

.sidebar-user {
    padding: 15px 20px;
    border-top: 1px solid var(--sidebar-border);
    font-size: 13px;
    color: var(--sidebar-text-muted);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logout-link {
    color: var(--accent-color);
    text-decoration: none;
    font-size: 12px;
}

.logout-link:hover {
    text-decoration: underline;
}

/* =====================
   Theme Toggle
===================== */
.sidebar-theme-toggle {
    padding: 12px 20px;
    border-top: 1px solid var(--sidebar-border);
    display: flex;
    align-items: center;
    gap: 12px;
}

.theme-label-text {
    color: var(--sidebar-text-muted);
    font-size: 13px;
}

.theme-switch {
    position: relative;
    width: 44px;
    height: 24px;
    flex-shrink: 0;
}

.theme-switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.theme-slider {
    position: absolute;
    cursor: pointer;
    inset: 0;
    background: #555;
    border-radius: 24px;
    transition: background 0.3s ease;
}

.theme-slider::before {
    content: "";
    position: absolute;
    height: 18px;
    width: 18px;
    left: 3px;
    bottom: 3px;
    background: #fff;
    border-radius: 50%;
    transition: transform 0.3s ease;
}

.theme-switch input:checked + .theme-slider {
    background: var(--accent-color);
}

.theme-switch input:checked + .theme-slider::before {
    transform: translateX(20px);
}

/* =====================
   Main Content
===================== */
.content {
    flex-grow: 1;
    padding: 30px;
    background: var(--bg-content);
    overflow-y: auto;
}

.page-section {
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.container {
    max-width: 1000px;
    margin: 0 auto;
    background: var(--bg-card);
    padding: 30px;
    border-radius: var(--radius-lg);
    box-shadow: 0 4px 20px var(--shadow-card);
}

h1, h2 {
    color: var(--text-heading);
    border-bottom: 2px solid var(--border-light);
    padding-bottom: 10px;
    display: flex;
    align-items: center;
    gap: 10px;
}

h2 [data-lucide] {
    width: 22px;
    height: 22px;
    flex-shrink: 0;
}

/* =====================
   Container Cards
===================== */
#containerGrid {
    display: grid;
    gap: 15px;
    margin-bottom: 30px;
}

.container-card {
    position: relative;
    background: var(--bg-card);
    padding: 15px;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    border-left: 6px solid var(--border-color);
    transition: transform var(--transition-fast),
                box-shadow var(--transition-fast);
}

.container-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px var(--shadow-card-hover);
}

.card-started {
    font-size: 11px;
    color: var(--text-muted);
    margin-top: 2px;
}

/* Card status borders */
.status-running { border-left-color: var(--success-color); }
.status-exited  { border-left-color: var(--warning-color); }
.status-down    { border-left-color: var(--danger-color); }

/* =====================
   Status Badge
===================== */
.status-badge {
    position: absolute;
    top: 10px;
    left: 10px;
    padding: 4px 8px;
    font-size: 11px;
    font-weight: 600;
    border-radius: var(--radius-sm);
    white-space: nowrap;
}

/* Inline variant — flows in flex/grid layouts without absolute positioning */
.status-badge-inline {
    position: static;
    display: inline-block;
    padding: 4px 8px;
    font-size: 11px;
    font-weight: 600;
    border-radius: var(--radius-sm);
    white-space: nowrap;
    flex-shrink: 0;
}

.badge-running {
    background: var(--success-color);
    color: #fff;
}

.badge-exited {
    background: var(--warning-color);
    color: #000;
}

.badge-down {
    background: var(--danger-color);
    color: #fff;
}

/* =====================
   Inspect Button
===================== */
.inspect-btn {
    position: absolute;
    top: 10px;
    right: 10px;
    background: var(--accent-color);
    color: #fff;
    border: none;
    border-radius: var(--radius-sm);
    padding: 4px 8px;
    font-size: 11px;
    cursor: pointer;
    transition: opacity var(--transition-fast);
}

.inspect-btn:hover {
    opacity: 0.9;
}

/* =====================
   Monitoring Section
===================== */
.monitoring-section {
    margin-top: 30px;
    padding: 20px;
    background: var(--bg-card);
    border: 2px solid var(--accent-color);
    border-radius: var(--radius-lg);
}

.stats-container {
    display: flex;
    gap: 15px;
    margin: 20px 0;
}

.stat-card {
    flex: 1;
    text-align: center;
    padding: 15px;
    background: var(--bg-stat);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
}

.stat-card b {
    display: block;
    font-size: 1.4em;
    color: var(--accent-color);
}

/* =====================
   Terminal
===================== */
.terminal-header {
    background: var(--terminal-header-bg);
    color: #fff;
    padding: 12px 15px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-radius: var(--radius-md) var(--radius-md) 0 0;
}

#log-console {
    background: var(--terminal-bg);
    color: var(--terminal-green);
    padding: 15px;
    height: 350px;
    overflow-y: auto;
    font-family: Consolas, Monaco, monospace;
    font-size: 13px;
    line-height: 1.5;
    border: 1px solid #000;
    border-radius: 0 0 var(--radius-md) var(--radius-md);
    margin: 0;
}

/* =====================
   Buttons
===================== */
.btn {
    padding: 8px 14px;
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-weight: 600;
    margin-left: 5px;
    transition: opacity var(--transition-fast);
}

.btn:hover { opacity: 0.9; }

.btn-success { background: var(--success-color); color: #fff; }
.btn-warning { background: var(--warning-color); color: #fff; }
.btn-danger  { background: var(--danger-color); color: #fff; }

/* =====================
   Utility Sections
===================== */
.header-flex {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
}

.ip-section {
    background: var(--bg-card-alt);
    padding: 20px;
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
    margin-bottom: 30px;
}

.ip-input-group {
    display: flex;
    gap: 10px;
    max-width: 500px;
}

.ip-input {
    flex: 1;
    padding: 10px;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-sm);
    font-family: monospace;
    background: var(--bg-input);
    color: var(--text-primary);
}

/* =====================
   Lists & Grid
===================== */
.list-group {
    list-style: none;
    padding: 0;
    margin-top: 15px;
}

.list-group-item {
    background: var(--bg-card);
    border: 1px solid var(--border-light);
    margin-bottom: 5px;
    padding: 10px 15px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-radius: var(--radius-sm);
}

.grid-container {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 15px;
}

.card-details {
    margin-top: 10px;
}

.card-row {
    display: grid;
    grid-template-columns: 160px 1fr;
    align-items: center;
    gap: 10px;
    padding: 4px 0;
    font-size: 13px;
}

.card-label {
    font-weight: 600;
    color: var(--text-secondary);
}

.card-value {
    color: var(--text-value);
    word-break: break-word;
}

.provider-card {
    border: 1px solid var(--provider-border);
    border-radius: 0.75rem;
    background: var(--provider-bg);
}

.provider-header {
    padding: 0.75rem 1rem;
    font-weight: 600;
    cursor: pointer;
    background: var(--provider-header-bg);
    border-bottom: 1px solid var(--provider-border);
}

.provider-content {
    padding: 1rem;
}

.provider-card[open] .provider-header {
    border-bottom: 1px solid var(--provider-border);
}

/* =====================
   Card Action Buttons
===================== */
.card-actions .btn {
    cursor: pointer;
}

/* =====================
   Toast Notifications
===================== */
.toast-container {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 9999;
    display: flex;
    flex-direction: column;
    gap: 8px;
    pointer-events: none;
}

.toast {
    pointer-events: auto;
    padding: 12px 20px;
    border-radius: var(--radius-md);
    color: #fff;
    font-size: 14px;
    font-weight: 500;
    box-shadow: 0 4px 12px var(--shadow-toast);
    opacity: 0;
    transform: translateX(40px);
    transition: opacity 0.3s ease, transform 0.3s ease;
    max-width: 400px;
}

.toast-visible {
    opacity: 1;
    transform: translateX(0);
}

.toast-error   { background: var(--danger-color); }
.toast-warning { background: var(--warning-color); color: #000; }
.toast-success { background: var(--success-color); }

/* =====================
   Embedded Frames
===================== */
.embedded-frame {
    width: 100%;
    height: calc(100vh - 140px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    background: var(--bg-card);
}

/* =====================
   Confirm Modal
===================== */
.modal-backdrop {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.5);
    z-index: 10000;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(3px);
}

.modal-backdrop.open {
    display: flex;
}

.modal-dialog {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 28px;
    width: 90%;
    max-width: 420px;
    box-shadow: 0 16px 48px rgba(0,0,0,0.25);
    animation: modalIn 0.2s ease;
}

@keyframes modalIn {
    from { opacity: 0; transform: scale(0.95) translateY(-10px); }
    to   { opacity: 1; transform: scale(1) translateY(0); }
}

.modal-title {
    font-size: 16px;
    font-weight: 700;
    color: var(--text-heading);
    margin: 0 0 8px 0;
}

.modal-body {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 12px;
    line-height: 1.5;
}

.modal-input {
    width: 100%;
    padding: 10px 12px;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-sm);
    background: var(--bg-input);
    color: var(--text-primary);
    font-size: 14px;
    margin-bottom: 16px;
    box-sizing: border-box;
    outline: none;
    transition: border-color var(--transition-fast);
}

.modal-input:focus {
    border-color: var(--accent-color);
}

.modal-actions {
    display: flex;
    justify-content: flex-end;
    gap: 10px;
    margin-top: 20px;
}

.modal-btn {
    padding: 9px 20px;
    border: none;
    border-radius: var(--radius-sm);
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    transition: opacity var(--transition-fast);
}

.modal-btn:hover { opacity: 0.85; }

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

.modal-btn-confirm {
    background: var(--accent-color);
    color: #fff;
}

.modal-btn-danger {
    background: var(--danger-color);
    color: #fff;
}

.modal-btn-warning {
    background: var(--warning-color);
    color: #fff;
}

/* =====================
   Card Overlay (spinner)
===================== */
.card-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0,0,0,0.55);
    border-radius: var(--radius-md);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 10px;
    z-index: 10;
    animation: fadeIn 0.2s ease;
}

.card-overlay .spinner {
    width: 28px;
    height: 28px;
    border: 3px solid rgba(255,255,255,0.25);
    border-top-color: #fff;
    border-radius: 50%;
    animation: spin 0.7s linear infinite;
}

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

.card-overlay .overlay-text {
    color: #fff;
    font-size: 12px;
    font-weight: 600;
}

/* =====================
   Hamburger Menu
===================== */
.hamburger-btn {
    display: none;
    position: fixed;
    top: 12px;
    left: 12px;
    z-index: 1001;
    background: var(--sidebar-bg);
    color: #fff;
    border: none;
    border-radius: var(--radius-sm);
    padding: 10px;
    cursor: pointer;
    align-items: center;
    justify-content: center;
}

.hamburger-icon {
    display: block;
    width: 22px;
    height: 2px;
    background: #fff;
    position: relative;
}

.hamburger-icon::before,
.hamburger-icon::after {
    content: "";
    display: block;
    width: 22px;
    height: 2px;
    background: #fff;
    position: absolute;
    left: 0;
}

.hamburger-icon::before { top: -7px; }
.hamburger-icon::after  { top: 7px; }

.sidebar-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.5);
    z-index: 999;
}

.sidebar-overlay.visible {
    display: block;
}

/* =====================
   Responsive (Mobile)
===================== */
@media (max-width: 768px) {
    body { padding: 0; }

    .hamburger-btn { display: flex; }

    .sidebar {
        position: fixed;
        top: 0;
        left: -280px;
        height: 100vh;
        z-index: 1000;
        transition: left 0.3s ease;
        width: 260px;
    }

    .sidebar.open {
        left: 0;
    }

    .content {
        padding: 60px 15px 15px 15px;
    }

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

    .header-flex {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
    }

    .stats-container {
        flex-direction: column;
    }

    .card-row {
        grid-template-columns: 1fr;
    }

    .ip-input-group {
        flex-direction: column;
        max-width: 100%;
    }

    .toast-container {
        left: 10px;
        right: 10px;
    }

    .toast { max-width: 100%; }

    .embedded-frame {
        height: calc(100vh - 100px);
    }

    #log-console {
        height: 250px;
        font-size: 11px;
    }
}

/* =====================
   Inline Updates Panel
===================== */
.updates-panel {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    margin-bottom: 20px;
    overflow: hidden;
}

.updates-panel-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 18px;
    border-bottom: 1px solid var(--border-color);
    font-weight: 600;
    font-size: 0.9rem;
}

#updates-panel-body {
    padding: 16px 18px;
    max-height: 55vh;
    overflow-y: auto;
}

/* =====================
   GPU Server Form Modal
===================== */
.gpu-modal-backdrop {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.55);
    z-index: 10001;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(3px);
}

.gpu-modal-backdrop.open {
    display: flex;
}

.gpu-modal-dialog {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    width: 90%;
    max-width: 560px;
    max-height: 90vh;
    display: flex;
    flex-direction: column;
    box-shadow: 0 16px 48px rgba(0,0,0,0.3);
    animation: modalIn 0.2s ease;
}

.gpu-modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 24px 16px;
    border-bottom: 1px solid var(--border-color);
}

.gpu-modal-body {
    padding: 20px 24px;
    overflow-y: auto;
    flex: 1;
    min-height: 0; /* required for flex child to shrink and scroll */
}

.gpu-modal-footer {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 10px;
    padding: 16px 24px;
    border-top: 1px solid var(--border-color);
    flex-wrap: wrap;
}

.gpu-form-row {
    margin-bottom: 14px;
}

.gpu-form-row-inline {
    display: flex;
    align-items: center;
    gap: 12px;
}

.gpu-form-label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 5px;
}

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

.gpu-form-input,
.gpu-form-select {
    width: 100%;
    padding: 9px 12px;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-sm);
    background: var(--bg-input);
    color: var(--text-primary);
    font-size: 14px;
    box-sizing: border-box;
    outline: none;
    transition: border-color var(--transition-fast);
}

.gpu-form-input:focus,
.gpu-form-select:focus {
    border-color: var(--accent-color);
}

.gpu-form-checkbox {
    width: 16px;
    height: 16px;
    cursor: pointer;
    accent-color: var(--accent-color);
}

.gpu-form-textarea {
    resize: vertical;
    font-family: monospace;
    font-size: 12px;
    line-height: 1.5;
}

.gpu-form-error {
    color: var(--danger-color);
    font-size: 13px;
    flex: 1;
}

/* =====================
   Bookmarks Sidebar Section
===================== */
.nav-section-label {
    padding: 14px 16px 4px;
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--sidebar-text-muted, rgba(255,255,255,0.45));
    user-select: none;
}

.nav-link-dynamic {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 16px;
    cursor: pointer;
    border-radius: var(--radius-sm);
    color: #ccc;
    font-size: 14px;
    transition: background var(--transition-fast), color var(--transition-fast);
    position: relative;
}

.nav-link-dynamic:hover {
    background: var(--sidebar-hover);
    color: #fff;
}

.nav-link-dynamic.active {
    background: var(--accent-color);
    color: #fff;
}

.nav-link-label {
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.nav-link-remove {
    display: none;
    background: none;
    border: none;
    color: rgba(255,255,255,0.55);
    font-size: 16px;
    line-height: 1;
    cursor: pointer;
    padding: 0 2px;
    border-radius: 3px;
    flex-shrink: 0;
}

.nav-link-dynamic:hover .nav-link-remove {
    display: inline-block;
}

.nav-link-remove:hover {
    color: var(--danger-color);
    background: rgba(231,76,60,0.15);
}

/* Private bookmarks — subtle visual distinction */
.nav-link-private {
    opacity: 0.85;
}
.nav-link-private .nav-link-label {
    font-style: italic;
}

/* Divider between shared and private bookmarks */
.nav-bookmark-divider {
    list-style: none;
    padding: 8px 16px 2px;
    font-size: 10px;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--text-muted);
    pointer-events: none;
    user-select: none;
}

/* "Private" checkbox row in add bookmark modal */
.bookmark-private-row {
    margin-top: 4px;
}
.bookmark-private-label {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: var(--text-secondary);
    cursor: pointer;
    user-select: none;
}
.bookmark-private-label input[type="checkbox"] {
    width: 15px;
    height: 15px;
    cursor: pointer;
    accent-color: var(--primary-color);
}

.add-bookmark-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    width: calc(100% - 32px);
    margin: 6px 16px 0;
    padding: 8px 12px;
    background: none;
    border: 1px dashed var(--sidebar-border);
    border-radius: var(--radius-sm);
    color: var(--sidebar-text-muted);
    font-size: 13px;
    cursor: pointer;
    transition: background var(--transition-fast), color var(--transition-fast);
}

.add-bookmark-btn:hover {
    background: var(--sidebar-hover);
    color: #fff;
    border-color: transparent;
}