/* App Sandbox - Dark Theme */
:root {
    --bg: #1e1e1e;
    --ctrl-bg: #2d2d2d;
    --ctrl-border: #3e3e3e;
    --text: #e6e6e6;
    --text-dim: #888;
    --accent: #4ea6f5;
    --accent-hover: #6db8ff;
    --danger: #dc3232;
    --danger-dim: #8c2828;
    --success: #00c800;
    --warning: #dcc800;
    --section-gap: 12px;
    --radius: 4px;
}

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

body {
    background: var(--bg);
    color: var(--text);
    font-family: 'Segoe UI', sans-serif;
    font-size: 13px;
    padding: 8px 12px;
    overflow: hidden;
    user-select: none;
    height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Section headings */
h2 {
    font-size: 12px;
    font-weight: 600;
    color: var(--text-dim);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 8px;
    padding-bottom: 4px;
    border-bottom: 1px solid var(--ctrl-border);
}

/* Section header row: title on left, action button on right */
.section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 8px;
    padding-bottom: 4px;
    border-bottom: 1px solid var(--ctrl-border);
}
.section-header h2 {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}
#btn-new-sandbox {
    height: 26px;
    padding: 2px 14px;
}

/* Collapsible sections */
h2.collapsible { cursor: pointer; }
h2.collapsible:hover { color: var(--text); }
.collapse-arrow { display: inline-block; font-size: 10px; transition: transform 0.15s; }
.collapsed .collapse-arrow { transform: rotate(-90deg); }
.collapsed .section-body, .collapsed #log-panel { display: none; }

/* Form layout */
.form-grid {
    display: grid;
    grid-template-columns: 90px 1fr;
    gap: 4px 8px;
    align-items: center;
}

.form-grid label {
    font-size: 12px;
    color: var(--text-dim);
    text-align: right;
    padding-right: 4px;
}

.form-row {
    display: flex;
    align-items: center;
    gap: 6px;
    min-height: 26px;
}

.form-row .host-info {
    font-size: 11px;
    color: var(--text-dim);
    margin-left: 8px;
}

/* Inputs */
input[type="text"],
input[type="number"],
input[type="password"],
select {
    background: var(--ctrl-bg);
    color: var(--text);
    border: 1px solid var(--ctrl-border);
    border-radius: var(--radius);
    padding: 3px 6px;
    font-size: 12px;
    font-family: inherit;
    outline: none;
    height: 24px;
}

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

input[type="text"] { width: 100%; }
input[type="number"] { width: 80px; }
input[type="password"] { width: 100%; }
select { min-width: 80px; }
#gpu-mode, #edit-gpu-mode { max-width: 100%; text-overflow: ellipsis; }

.input-sm { width: 80px !important; }
.input-md { width: 140px !important; }

/* Buttons */
button {
    background: var(--ctrl-bg);
    color: var(--text);
    border: 1px solid var(--ctrl-border);
    border-radius: var(--radius);
    padding: 4px 12px;
    font-size: 12px;
    font-family: inherit;
    cursor: pointer;
    height: 26px;
    white-space: nowrap;
}

button:hover { background: #3a3a3a; border-color: #555; }
button:active { background: #444; }
button:disabled { opacity: 0.4; cursor: default; }
button:disabled:hover { background: var(--ctrl-bg); border-color: var(--ctrl-border); }

/* Disabled checkboxes (e.g. "Deploy SSH key" until "SSH Server" is ticked).
   Chromium/WebView2 dims a disabled native checkbox automatically, but WebKit
   (the macOS WKWebView host) does not -- so dim it, and the whole label, here
   to make the unavailable affordance obvious on both engines. */
input[type="checkbox"]:disabled { opacity: 0.4; cursor: default; }
label:has(input[type="checkbox"]:disabled) { opacity: 0.5; cursor: default; }

button.primary {
    background: #2a5a8a;
    border-color: #3a7aba;
}
button.primary:hover { background: #3a6a9a; }
button.primary:disabled { background: #2a3a4a; border-color: #3a4a5a; }

/* Image row with OR separator */
.image-row {
    display: flex;
    align-items: center;
    gap: 6px;
}
.image-row input[type="text"] { flex: 1; min-width: 120px; }
.or-separator {
    color: var(--text-dim);
    font-size: 11px;
    font-weight: 600;
    padding: 0 2px;
}
.image-row select { min-width: 140px; }

/* Template custom dropdown */
.template-dropdown {
    position: relative;
    min-width: 180px;
}
.template-dropdown-selected {
    background: var(--ctrl-bg);
    color: var(--text);
    border: 1px solid var(--ctrl-border);
    border-radius: var(--radius);
    padding: 3px 6px;
    font-size: 12px;
    height: 24px;
    cursor: pointer;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.template-dropdown.open .template-dropdown-selected {
    border-color: var(--accent);
}
.template-dropdown-list {
    display: none;
    position: absolute;
    top: 100%;
    left: 0; right: 0;
    background: var(--ctrl-bg);
    border: 1px solid var(--accent);
    border-radius: var(--radius);
    margin-top: 2px;
    z-index: 100;
    max-height: 200px;
    overflow-y: auto;
}
.template-dropdown.open .template-dropdown-list { display: block; }
.template-dropdown-item {
    display: flex;
    align-items: center;
    padding: 4px 6px;
    font-size: 12px;
    cursor: pointer;
    color: var(--text);
}
.template-dropdown-item:hover { background: #3a3a3a; }
.template-dropdown-item .tpl-name { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.template-dropdown-item .tpl-delete {
    flex-shrink: 0;
    margin-left: 6px;
    cursor: pointer;
    opacity: 0.5;
    font-size: 14px;
}
.template-dropdown-item .tpl-delete:hover { opacity: 1; }

/* Inline field validation warning */
.field-warn {
    font-size: 11px;
    color: var(--danger);
    white-space: normal;
    overflow-wrap: anywhere;
    flex: 1 1 0;
    min-width: 0;
}

/* Password match validation */
.pass-mismatch:focus { border-color: var(--danger-dim) !important; }
.pass-match:focus { border-color: var(--success) !important; }

/* Password reveal toggle */
.toggle-pass {
    cursor: pointer;
    font-size: 14px;
    opacity: 0.5;
    user-select: none;
}
.toggle-pass:hover { opacity: 1; }

/* Credentials row */
.cred-row {
    display: flex;
    align-items: center;
    gap: 6px;
}
.cred-row label {
    font-size: 12px;
    color: var(--text-dim);
    white-space: nowrap;
}
.cred-row input { flex: 1; }

/* Action buttons row */
.action-buttons {
    display: flex;
    gap: 6px;
    margin-top: 8px;
    padding-top: 8px;
    border-top: 1px solid var(--ctrl-border);
}

/* Section spacing */
section { margin-bottom: var(--section-gap); flex-shrink: 0; }
section:last-of-type { flex: 1; min-height: 0; display: flex; flex-direction: column; margin-bottom: 0; }
section:last-of-type.collapsed { flex: 0; }

/* VM Table */
.vm-table-wrap {
    overflow-x: auto;
    border: 1px solid var(--ctrl-border);
    border-radius: var(--radius);
}

table {
    width: 100%;
    border-collapse: collapse;
    font-size: 12px;
}

th {
    background: #252525;
    color: var(--text-dim);
    font-weight: 600;
    font-size: 11px;
    text-align: left;
    padding: 4px 6px;
    border-bottom: 1px solid var(--ctrl-border);
    white-space: nowrap;
    position: sticky;
    top: 0;
}

td {
    padding: 3px 6px;
    border-bottom: 1px solid #2a2a2a;
    white-space: nowrap;
}

td.empty-state { text-align: center; color: var(--text-dim); padding: 20px 6px; }
.empty-state-btn { height: 32px; padding: 4px 18px; font-size: 13px; }
tr:hover td { background: #252525; }
tr.selected td { background: #1a3a5a; }

/* Icon columns — fixed width, centered in both header and body */
th.icon-col, td.icon-col {
    width: 28px;
    text-align: center;
    padding-left: 2px;
    padding-right: 2px;
}

/* Icon button cells */
.icon-btn {
    background: none;
    border: none;
    font-size: 14px;
    padding: 0;
    height: auto;
    width: 100%;
    text-align: center;
    cursor: pointer;
    line-height: 1;
}
.icon-btn:hover { opacity: 0.8; }
.icon-btn:disabled { opacity: 0.3; cursor: default; }

/* Icon colors by state */
.icon-btn.start { color: var(--success); }
.icon-btn.start.inactive { color: #505050; }
.icon-btn.shutdown { color: var(--warning); }
.icon-btn.shutdown.inactive { color: #505050; }
.icon-btn.stop { color: #dc3232; }
.icon-btn.stop.inactive { color: #505050; }
.icon-btn.delete { color: #c83c3c; }
.icon-btn.delete.running { color: #642828; }
.icon-btn.ssh { color: var(--accent); font-family: monospace; font-weight: bold; }
.icon-btn.ssh.inactive { color: #505050; }
.icon-btn.ssh.hidden { display: none; }
.icon-btn.edit { color: var(--text-dim); }
.icon-btn.edit:hover { color: var(--text); }

/* Agent dot */
.agent-dot {
    display: inline-block;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #c80000;
    vertical-align: middle;
}
.agent-dot.online { background: var(--success); }
.agent-dot.disabled { background: var(--text-dim); }

/* Status text */
.status-running { color: var(--success); font-weight: 600; }
.status-shutting-down { color: var(--warning); font-weight: 600; }
.status-building { color: var(--accent); font-weight: 600; }
.spinner {
    display: inline-block;
    width: 10px; height: 10px;
    border: 2px solid var(--accent);
    border-top-color: transparent;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    margin-left: 5px;
    vertical-align: middle;
}
@keyframes spin { to { transform: rotate(360deg); } }
.status-stopped { color: var(--text-dim); }

.snap-cell { white-space: nowrap; }
.snap-open {
    display: block;
    max-width: 220px;
    overflow: hidden;
    text-overflow: ellipsis;
    font-size: 11px;
}

/* Log panel */
#log-panel {
    background: var(--ctrl-bg);
    border: 1px solid var(--ctrl-border);
    border-radius: var(--radius);
    padding: 6px;
    flex: 1;
    min-height: 60px;
    overflow-y: auto;
    font-family: 'Consolas', 'Courier New', monospace;
    font-size: 11px;
    line-height: 1.5;
    color: #ccc;
    user-select: text;
    cursor: text;
}

#log-panel .log-line {
    white-space: pre-wrap;
    word-break: break-all;
}

/* Confirmation modal */
.modal-overlay {
    display: none;
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(0,0,0,0.6);
    z-index: 1000;
    align-items: center;
    justify-content: center;
}
.modal-overlay.active { display: flex; }

.modal {
    background: #2a2a2a;
    border: 1px solid #555;
    border-radius: 6px;
    padding: 20px;
    max-width: 420px;
    width: 90%;
}
.modal.wide {
    max-width: 640px;
    width: 92%;
    display: flex;
    flex-direction: column;
    max-height: calc(100vh - 32px);
}
.modal.wide h3, .modal.wide .modal-buttons {
    flex-shrink: 0;
}
#edit-vm-overlay .modal { max-width: 480px; }
.modal-form-body {
    min-height: 0;
    overflow-y: auto;
    color-scheme: dark;
    margin-bottom: 16px;
}
.modal-form-body .form-grid { grid-template-columns: 90px minmax(0, 1fr); }
.modal-form-body .form-row, .modal-form-body .cred-row,
.modal-form-body .image-row { min-width: 0; flex-wrap: wrap; }
.modal-form-body .cred-row input { min-width: 0; }
#edit-vm-warn, #snapshot-warn { display: block; margin-top: 12px; }
#edit-vm-warn:empty, #snapshot-warn:empty { display: none; }
#snapshot-current { overflow-wrap: anywhere; }
#snapshot-tree {
    border: 1px solid var(--ctrl-border);
    border-radius: var(--radius);
    background: var(--ctrl-bg);
    padding: 6px;
}
#snapshot-tree ul { list-style: none; margin: 0; padding: 0; }
#snapshot-tree ul ul {
    margin-left: 13px;
    padding-left: 12px;
    border-left: 1px solid var(--ctrl-border);
}
.snapshot-choice {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px;
    width: 100%;
    height: auto;
    font-size: inherit;
    text-align: left;
    white-space: normal;
}
.snapshot-choice, .snapshot-choice:hover, .snapshot-choice:active, .snapshot-choice:disabled:hover {
    background: none;
    border: none;
}
.snapshot-choice[aria-pressed="true"] .snapshot-name { font-weight: 600; }
.snapshot-choice:disabled { opacity: 1; }
.snapshot-choice:focus-visible { outline: 1px solid var(--accent); outline-offset: -1px; }
.snapshot-name { min-width: 0; overflow-wrap: anywhere; }
.snapshot-meta { min-width: 0; margin-left: auto; color: var(--text-dim); font-size: 11px; text-align: right; overflow-wrap: anywhere; }
#snapshot-help { margin: 12px 0 0; }
#btn-snapshot-create { margin-right: auto; }
.disk-location-btn { flex-shrink: 0; }
#disk-location-overlay .modal { max-width: 560px; max-height: calc(100vh - 32px); overflow-y: auto; color-scheme: dark; }
#disk-location-overlay .disk-directory-field { margin-bottom: 16px; }
.disk-directory-label { display: block; color: var(--text-dim); font-size: 12px; margin-bottom: 6px; }
.disk-directory-field { min-width: 0; }
.disk-directory-row { display: flex; align-items: center; gap: 6px; }
.disk-directory-row input[type="text"] { flex: 1; min-width: 0; }
.disk-directory-row button { flex-shrink: 0; }
.disk-directory-field .field-warn { display: block; margin: 4px 0 0; }
.disk-directory-field .field-warn:empty { display: none; }
#disk-location-space { display: block; color: var(--text-dim); font-size: 11px; margin-top: 6px; }
@media (max-width: 560px) {
    .modal-form-body .form-grid { grid-template-columns: minmax(0, 1fr); }
    .modal-form-body .form-grid > label { text-align: left; margin-top: 5px; }
    .modal.wide .modal-buttons { flex-wrap: wrap; }
    .modal.wide { padding: 14px; }
    .snapshot-choice { flex-wrap: wrap; }
    .snapshot-meta { flex-basis: 100%; text-align: left; }
}
.modal h3 {
    font-size: 14px;
    margin-bottom: 12px;
    overflow-wrap: anywhere;
}
.modal p {
    font-size: 12px;
    color: #bbb;
    margin-bottom: 16px;
    line-height: 1.5;
}
.modal-buttons {
    display: flex;
    justify-content: flex-end;
    gap: 8px;
}
.modal-buttons .danger {
    background: #5a1a1a;
    border-color: #8a2a2a;
    color: #ff8888;
}
.modal-buttons .danger:hover { background: #6a2a2a; }
.modal-buttons .primary {
    background: #1a3a5a;
    border-color: #2a5a8a;
    color: #88bbff;
}
.modal-buttons .primary:hover { background: #2a4a6a; }
.prereq-progress {
    margin-top: 12px;
    height: 6px;
    background: #1a1a1a;
    border-radius: 3px;
    overflow: hidden;
}
.prereq-progress-bar {
    height: 100%;
    width: 0%;
    background: #4a8adf;
    border-radius: 3px;
    transition: width 0.3s ease;
}
.prereq-pct {
    margin-top: 6px;
    font-size: 11px;
    color: #888;
    text-align: center;
}