:root {
    --bg: #0f1419;
    --panel: #171d25;
    --panel-2: #1f2733;
    --text: #e8eef7;
    --muted: #93a1b5;
    --accent: #1fbf75;
    --accent-2: #148f57;
    --danger: #ff6b6b;
    --border: #2a3444;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: "Segoe UI", Tahoma, sans-serif;
    background: linear-gradient(180deg, #0c1016 0%, #121820 100%);
    color: var(--text);
    min-height: 100vh;
}

a { color: #7fd3ff; text-decoration: none; }
a:hover { text-decoration: underline; }

.layout {
    max-width: 1180px;
    margin: 0 auto;
    padding: 24px;
}

.topbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
    margin-bottom: 24px;
}

h1 {
    margin: 0;
    font-size: 1.8rem;
}

h2 {
    margin: 0 0 12px;
    font-size: 1.2rem;
}

.subtitle {
    margin: 6px 0 0;
    color: var(--muted);
}

.nav {
    display: flex;
    gap: 10px;
}

.nav a {
    padding: 10px 14px;
    border-radius: 10px;
    background: var(--panel);
    border: 1px solid var(--border);
    color: var(--text);
}

.nav a.active {
    background: var(--accent);
    border-color: var(--accent);
    color: #04140b;
    font-weight: 600;
}

.cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 14px;
    margin-bottom: 20px;
}

.card, .panel {
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 18px;
}

.card .label {
    display: block;
    color: var(--muted);
    font-size: 0.85rem;
    margin-bottom: 8px;
}

.card strong {
    font-size: 1.3rem;
}

.card strong.ok { color: var(--accent); }
.card strong.bad { color: var(--danger); }

.panel-head {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 14px;
}

.table-wrap { overflow-x: auto; }

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

th, td {
    padding: 12px 10px;
    border-bottom: 1px solid var(--border);
    text-align: left;
}

th {
    color: var(--muted);
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.muted { color: var(--muted); }

.badge {
    display: inline-block;
    padding: 4px 10px;
    border-radius: 999px;
    font-size: 0.8rem;
    font-weight: 600;
}

.badge.online {
    background: rgba(31, 191, 117, 0.15);
    color: var(--accent);
}

.badge.offline {
    background: rgba(147, 161, 181, 0.15);
    color: var(--muted);
}

.btn {
    border: 1px solid var(--border);
    background: var(--panel-2);
    color: var(--text);
    border-radius: 10px;
    padding: 10px 14px;
    cursor: pointer;
}

.btn:hover { filter: brightness(1.08); }

.btn.primary {
    background: var(--accent);
    border-color: var(--accent-2);
    color: #04140b;
    font-weight: 600;
}

.btn.small {
    padding: 6px 10px;
    font-size: 0.85rem;
}

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

.steps ol {
    margin: 0;
    padding-left: 20px;
    color: var(--muted);
    line-height: 1.7;
}

.alert {
    padding: 12px 16px;
    border-radius: 10px;
    margin-bottom: 16px;
    border: 1px solid var(--border);
}

.alert.ok {
    background: rgba(31, 191, 117, 0.12);
    border-color: rgba(31, 191, 117, 0.35);
    color: var(--accent);
}

.alert.bad {
    background: rgba(255, 107, 107, 0.12);
    border-color: rgba(255, 107, 107, 0.35);
    color: var(--danger);
}

.settings-form {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 14px;
}

.settings-form label,
.viewer-toolbar label {
    display: flex;
    flex-direction: column;
    gap: 6px;
    color: var(--muted);
}

.settings-form input,
.viewer-toolbar input {
    background: var(--panel-2);
    border: 1px solid var(--border);
    color: var(--text);
    border-radius: 10px;
    padding: 10px 12px;
}

.settings-form input:focus,
.viewer-toolbar input:focus {
    outline: 2px solid rgba(31, 191, 117, 0.35);
    outline-offset: 1px;
}

.form-hint {
    margin: 0;
    font-size: 0.9rem;
}

.form-hint code {
    color: var(--text);
}

.form-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.form-grid .span-2 {
    grid-column: span 2;
}

.server-status-cards {
    margin-bottom: 16px;
}

.server-log {
    margin: 0;
    padding: 12px;
    background: var(--panel-2);
    border: 1px solid var(--border);
    border-radius: 10px;
    font-size: 0.8rem;
    line-height: 1.5;
    overflow-x: auto;
    white-space: pre-wrap;
    min-height: 4.5rem;
}

.log-panel {
    margin-top: 16px;
}

.log-panel h3 {
    margin: 0;
    font-size: 1rem;
}

.log-panel .panel-head {
    margin-bottom: 10px;
}

.endpoint-test-results {
    margin-top: 16px;
    padding: 16px;
}

.endpoint-test-results.hidden {
    display: none;
}

.endpoint-test-results h3 {
    margin: 12px 0;
    font-size: 1rem;
}

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

.test-table th,
.test-table td {
    padding: 10px 8px;
    border-bottom: 1px solid var(--border);
    text-align: left;
    font-size: 0.9rem;
}

.test-table th {
    color: var(--muted);
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.status-line {
    margin: 14px 0 0;
    padding: 10px 12px;
    border-radius: 10px;
    background: var(--panel-2);
    border: 1px solid var(--border);
    color: var(--muted);
}

.status-line.live {
    color: var(--accent);
    border-color: rgba(31, 191, 117, 0.35);
}

.role-tabs {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 16px;
}

.role-tab {
    border: 1px solid var(--border);
    background: var(--panel-2);
    color: var(--text);
    border-radius: 10px;
    padding: 10px 14px;
    cursor: pointer;
    font: inherit;
}

.role-tab.active {
    background: var(--accent);
    border-color: var(--accent-2);
    color: #04140b;
    font-weight: 600;
}

.role-pane.hidden {
    display: none;
}

.block-label {
    display: flex;
    flex-direction: column;
    gap: 6px;
    color: var(--muted);
    margin-bottom: 14px;
}

.block-label input {
    background: var(--panel-2);
    border: 1px solid var(--border);
    color: var(--text);
    border-radius: 10px;
    padding: 10px 12px;
}

.credentials-box {
    margin-top: 16px;
    padding: 16px;
    border: 1px solid var(--border);
    border-radius: 12px;
    background: var(--panel-2);
}

.credentials-box.hidden {
    display: none;
}

.credentials-box h3 {
    margin: 0 0 8px;
    font-size: 1rem;
}

.credential-row {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 10px;
    margin: 12px 0;
}

.credential-row .label {
    min-width: 90px;
    color: var(--muted);
    font-size: 0.85rem;
}

.credential-row code {
    font-size: 1.1rem;
    color: var(--accent);
}

.steps-compact {
    margin: 12px 0 0;
    padding-left: 20px;
    color: var(--muted);
    line-height: 1.6;
}

.agent-setup {
    margin-top: 16px;
    padding-top: 16px;
    border-top: 1px solid var(--border);
}

.agent-setup.hidden {
    display: none;
}

.agent-setup h4 {
    margin: 0 0 8px;
    font-size: 0.95rem;
    color: #ffd166;
}

.connect-offline-help {
    margin-top: 12px;
    padding: 16px;
    border: 1px solid var(--border);
    border-radius: 12px;
    background: var(--panel-2);
}

.connect-offline-help.hidden {
    display: none;
}

.diagnostic-list {
    margin: 12px 0;
    padding-left: 20px;
    line-height: 1.6;
}

.diagnostic-list li {
    margin-bottom: 6px;
}

.manual-start-box {
    margin-top: 12px;
    padding: 12px 16px;
    border: 1px dashed var(--border);
    border-radius: 10px;
    background: rgba(0, 0, 0, 0.15);
}

.hidden {
    display: none !important;
}

.home-layout {
    max-width: 520px;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding-top: 24px;
    padding-bottom: 48px;
}

.home-layout.home-layout--form {
    align-items: flex-start;
    padding-top: 32px;
}

.home-layout.home-layout--connect {
    max-width: 640px;
}

.home-layout.home-layout--control-viewer {
    max-width: min(98vw, 1920px);
    width: 100%;
    align-items: stretch;
    justify-content: center;
    padding: 6px 8px 8px;
    min-height: 100vh;
    box-sizing: border-box;
}

.home-layout.home-layout--control-viewer .home-shell {
    width: 100%;
    height: 100%;
}

.home-layout.home-layout--control-viewer .home-screen.panel {
    padding: 6px 8px;
    height: calc(100vh - 14px);
    display: flex;
    flex-direction: column;
    box-sizing: border-box;
}

.home-screen--viewer-active > h2 {
    display: none;
}

.home-screen--viewer-active > .back-btn {
    display: none;
}

.home-screen--viewer-active > .exit-viewer-btn {
    display: inline-flex;
}

.exit-viewer-btn {
    display: none;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    padding: 0;
    margin-bottom: 4px;
    border-radius: 10px;
    flex-shrink: 0;
}

.exit-viewer-btn svg {
    display: block;
}

.home-screen--viewer-active #connectViewer {
    flex: 1;
    min-height: 0;
    display: flex;
    flex-direction: column;
}

.home-layout.home-layout--control-viewer .connect-viewer-stage {
    flex: 1;
    min-height: 0;
    width: 100%;
    margin: 0;
}

#remoteScreenCanvas.remote-control-surface,
#remoteScreenCanvas.visible {
    position: relative;
    z-index: 1;
    pointer-events: none;
}

.remote-viewport {
    position: relative;
    display: none;
    flex-shrink: 0;
}

.remote-viewport.active {
    display: block;
}

.remote-control-layer {
    position: absolute;
    left: 0;
    top: 0;
    z-index: 2;
    cursor: default;
    background: transparent;
    outline: none;
    touch-action: none;
    pointer-events: auto;
}

#clientScreen.remote-sharing-active #clientReady {
    position: fixed;
    right: 12px;
    bottom: 12px;
    z-index: 20;
    width: min(320px, calc(100vw - 24px));
    margin: 0;
    padding: 10px 12px;
    border-radius: 12px;
    background: rgba(12, 16, 22, 0.92);
    border: 1px solid var(--border);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.35);
}

#clientScreen.remote-sharing-active #clientReady .credential-row,
#clientScreen.remote-sharing-active #clientReady > .muted:first-of-type {
    display: none;
}

#clientScreen.remote-sharing-active .back-btn,
#clientScreen.remote-sharing-active > h2 {
    display: none;
}

.home-shell {
    width: 100%;
}

.home-page .home-screen,
.home-page .role-choice.panel {
    width: 100%;
}

.role-choice.panel {
    text-align: center;
    padding: 32px 28px;
}

.role-choice h1 {
    margin-bottom: 8px;
}

.role-choice .subtitle {
    margin-bottom: 0;
}

.home-screen.panel {
    padding: 24px;
}

.home-screen .form-hint {
    margin-bottom: 16px;
}

.home-screen .form-grid label,
.home-screen .block-label {
    display: flex;
    flex-direction: column;
    gap: 6px;
    color: var(--muted);
}

.home-screen .form-grid input,
.home-screen .block-label input {
    background: var(--panel-2);
    border: 1px solid var(--border);
    color: var(--text);
    border-radius: 10px;
    padding: 10px 12px;
    width: 100%;
}

.home-screen .form-grid input:focus,
.home-screen .block-label input:focus {
    outline: 2px solid rgba(31, 191, 117, 0.35);
    outline-offset: 1px;
}

.home-screen .form-grid {
    margin-bottom: 16px;
    grid-template-columns: 1fr;
}

.home-screen .form-actions {
    margin-top: 4px;
}

.home-screen .back-btn {
    margin-bottom: 16px;
}

.client-loading {
    padding: 20px 0;
}

.client-status {
    padding: 12px 16px;
    border-radius: 10px;
    background: var(--panel-2);
    border: 1px solid var(--border);
    margin-bottom: 16px;
    font-weight: 600;
}

.client-status.live {
    color: var(--accent);
    border-color: rgba(31, 191, 117, 0.4);
}

.connect-viewer-stage {
    position: relative;
    min-height: 320px;
    margin: 16px 0;
    border-radius: 12px;
    overflow: hidden;
    background: #000;
    border: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: center;
}

#remoteScreenCanvas {
    display: none;
    background: #000;
    image-rendering: auto;
}

#remoteScreenCanvas.visible {
    display: block;
}

.capture-hidden {
    position: fixed;
    width: 1px;
    height: 1px;
    opacity: 0;
    pointer-events: none;
    left: -9999px;
}

.error-log {
    margin: 12px 0 0;
    padding: 12px;
    background: var(--panel-2);
    border: 1px solid var(--border);
    border-radius: 10px;
    font-size: 0.78rem;
    line-height: 1.5;
    overflow-x: auto;
    white-space: pre-wrap;
    word-break: break-word;
    max-height: 320px;
    overflow-y: auto;
}

.error-log.hidden {
    display: none;
}

#clientError {
    margin-bottom: 8px;
}

#clientRetryBtn {
    margin-top: 8px;
    width: 100%;
}

#clientRetryBtn.hidden,
#shareScreenBtn.hidden {
    display: none;
}

#shareScreenBtn {
    margin-top: 10px;
}

.role-choice-buttons {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin: 32px 0 24px;
}

@media (max-width: 560px) {
    .role-choice-buttons {
        grid-template-columns: 1fr;
    }
}

.role-choice-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 8px;
    min-height: 140px;
    padding: 24px;
    border: 2px solid var(--border);
    border-radius: 16px;
    background: var(--panel);
    color: var(--text);
    cursor: pointer;
    transition: border-color 0.15s, background 0.15s, transform 0.1s;
}

.role-choice-btn:hover {
    border-color: var(--accent);
    background: var(--panel-2);
    transform: translateY(-2px);
}

.role-choice-btn.client:hover {
    border-color: #1fbf75;
}

.role-choice-btn.connect:hover {
    border-color: #7fd3ff;
}

.role-choice-title {
    font-size: 1.5rem;
    font-weight: 700;
}

.role-choice-desc {
    color: var(--muted);
    font-size: 0.95rem;
}

.home-footer {
    margin-top: 24px;
    font-size: 0.9rem;
}

.log-subhead {
    margin: 16px 0 8px;
    font-size: 0.95rem;
    color: var(--muted);
}

.alert.hidden {
    display: none;
}

@media (max-width: 720px) {
    .form-grid .span-2 {
        grid-column: span 1;
    }
}

.viewer-toolbar {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    align-items: end;
    margin-bottom: 16px;
}

.viewer-toolbar label {
    min-width: 220px;
}

.status-pill {
    margin-left: auto;
    padding: 8px 12px;
    border-radius: 999px;
    background: var(--panel-2);
    border: 1px solid var(--border);
    color: var(--muted);
}

.status-pill.live {
    color: var(--accent);
    border-color: rgba(31, 191, 117, 0.4);
}

.viewer-stage {
    position: relative;
    min-height: 520px;
    padding: 0;
    overflow: hidden;
}

#screenCanvas {
    display: none;
    background: #000;
    image-rendering: auto;
}

.remote-control-surface {
    cursor: default;
    outline: none;
    touch-action: none;
}

#screenCanvas.visible {
    display: block;
}

.placeholder {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: var(--muted);
    padding: 24px;
}

.placeholder.hidden {
    display: none;
}

@media (max-width: 720px) {
    .topbar { flex-direction: column; align-items: flex-start; }
    .status-pill { margin-left: 0; }
}