:root {
    color-scheme: dark;
    --bg-1: #0f172a;
    --bg-2: #1e293b;
    --text: #e2e8f0;
    --muted: #94a3b8;
    --glass: rgba(30, 41, 59, 0.45);
    --glass-border: rgba(148, 163, 184, 0.25);
    --primary: #38bdf8;
    --primary-hover: #0ea5e9;
    --continue: #f59e0b;
    --continue-hover: #d97706;
    --danger: #B22222;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    min-height: 100vh;
    font-family: var(--domain-font-family, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif);
    color: var(--text);
    background: linear-gradient(160deg, var(--bg-1), var(--bg-2));
    padding: 1rem;
}

.app-shell {
    max-width: 980px;
    margin: 0 auto;
    display: grid;
    gap: 1rem;
}

.panel {
    padding: 1rem;
    border-radius: 18px;
}

.glass {
    background: var(--glass);
    border: 1px solid var(--glass-border);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    box-shadow: 0 16px 36px rgba(15, 23, 42, 0.35);
}

.subtitle,
.hint,
.network-state,
.warning {
    color: var(--muted);
}

.app-brand {
    text-align: center;
    font-size: 1.6rem;
    font-weight: 700;
    letter-spacing: -0.01em;
    margin: 0.5rem 0 0;
    color: var(--text);
}

.main-menu-header {
    text-align: center;
    padding-bottom: 0.5rem;
}

.error-text {
    color: var(--danger);
    font-weight: 600;
    margin: 0.5rem 0;
}

.asset-status {
    margin: 0.2rem 0 0.35rem;
    padding: 0.4rem 0.55rem;
    border-radius: 8px;
    border: 1px solid var(--glass-border);
    background: rgba(15, 23, 42, 0.25);
    color: var(--muted);
}

.asset-status.is-present {
    color: var(--primary);
    border-color: var(--primary);
    font-weight: 700;
}

.asset-status.is-missing {
    color: var(--muted);
}

.menu-actions {
    display: grid;
    gap: 0.75rem;
    margin-top: 1rem;
}

.menu-actions.inline {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

#adminActions {
    margin-bottom: 0.75rem;
}

.admin-form {
    margin-top: 0.9rem;
    padding: 0.75rem;
    border-radius: 12px;
    border: 1px solid var(--glass-border);
    background: rgba(15, 23, 42, 0.25);
    display: grid;
    gap: 0.45rem;
}

.admin-form .admin-form {
    margin-top: 0.4rem;
}

.admin-form h3 {
    margin: 0.2rem 0 0.35rem;
}

.btn {
    border: none;
    border-radius: 12px;
    padding: 0.8rem 1rem;
    font-size: 1rem;
    cursor: pointer;
}

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

.btn-primary {
    background: var(--primary);
    color: #082f49;
    font-weight: 700;
}

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

.btn-primary.btn-continue {
    background: var(--continue);
    color: #1f2937;
}

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

.btn-secondary {
    background: rgba(148, 163, 184, 0.2);
    color: var(--text);
}

.btn-secondary.btn-signout {
    background: rgba(239, 68, 68, 0.16);
    color: #fecaca;
}

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

.btn-admin-green {
    background: #006400;
    color: #fff;
}

.btn-admin-green:hover:enabled {
    background: #005000;
}

.btn-admin-blue {
    background: #17305d;
    color: #fff;
}

.btn-admin-blue:hover:enabled {
    background: #122749;
}

.btn-large {
    min-height: 3.5rem;
    font-size: 1.1rem;
}

.session-header {
    display: flex;
    justify-content: space-between;
    gap: 0.75rem;
    align-items: center;
}

.session-header-actions-only {
    justify-content: flex-end;
}

.header-actions {
    display: flex;
    gap: 0.75rem;
}

.workspace-list,
.breadcrumb-list {
    list-style: none;
    padding: 0;
    margin: 0.75rem 0;
    display: grid;
    gap: 0.5rem;
}

.card-grid {
    list-style: none;
    padding: 0;
    margin: 0.75rem 0;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 0.65rem;
}

.card-grid li {
    padding: 0.8rem;
    border-radius: 12px;
    border: 1px solid var(--glass-border);
    background: rgba(15, 23, 42, 0.35);
    cursor: pointer;
    display: grid;
    gap: 0.45rem;
}

.card-grid li.is-selected {
    border-color: var(--primary-hover);
    box-shadow: 0 0 0 1px rgba(14, 165, 233, 0.35);
}

.card-grid li .inline-actions {
    justify-content: flex-start;
    flex-wrap: wrap;
}

.card-title {
    font-weight: 600;
}

.card-meta {
    color: var(--muted);
    font-size: 0.9rem;
}

.deck-crumb-dot {
    width: 0.44rem;
    height: 0.44rem;
    border-radius: 999px;
    background: #f59e0b;
    display: inline-block;
}

#deckList .deck-crumb-dot {
    margin-bottom:1px;
}

.deck-crumb-index {
    color: #f59e0b;
    font-weight: 700;
    font-size: 0.86rem;
}

.group-panel {
    border: 1px solid var(--glass-border);
    border-radius: 10px;
    background: rgba(15, 23, 42, 0.25);
    overflow: hidden;
}

.group-panel summary {
    cursor: pointer;
    padding: 0.65rem 0.75rem;
    font-weight: 600;
}

.group-panel .management-list {
    padding: 0.55rem;
}

.workspace-list li,
.breadcrumb-list li {
    padding: 0.75rem;
    border-radius: 10px;
    border: 1px solid var(--glass-border);
    background: rgba(15, 23, 42, 0.35);
    cursor: pointer;
}

label {
    display: block;
    margin-top: 0.5rem;
    margin-bottom: 0.5rem;
}

input[type='email'] {
    width: 100%;
    border-radius: 10px;
    border: 1px solid var(--glass-border);
    background: rgba(15, 23, 42, 0.5);
    color: var(--text);
    padding: 0.75rem;
}

input[type='text'],
input[type='password'],
input[type='number'],
input[type='date'],
input[type='file'],
select,
textarea {
    width: 100%;
    border-radius: 10px;
    border: 1px solid var(--glass-border);
    background: rgba(15, 23, 42, 0.5);
    color: var(--text);
    padding: 0.65rem;
}

.management-list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: grid;
    gap: 0.5rem;
}

.management-list li {
    border: 1px solid var(--glass-border);
    border-radius: 10px;
    padding: 0.65rem;
    background: rgba(15, 23, 42, 0.35);
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 0.6rem;
}

#workspaceGuestsSection,
#deckEditSection {
    margin-top: 0.85rem;
}

#workspaceEditForm {
    margin-top: 0.85rem;
}

#selectionContext {
    margin-top: 0.85rem;
}

.inline-actions {
    display: flex;
    gap: 0.4rem;
}

.input-row {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 0.5rem;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.btn-small {
    padding: 0.45rem 0.65rem;
    font-size: 0.85rem;
}

.viewer-toolbox {
    position: fixed;
    right: 1rem;
    top: clamp(6rem, 14vh, 8.2rem);
    left: auto;
    bottom: auto;
    transform: none;
    display: flex;
    flex-direction: column;
    gap: 0.45rem;
    padding: 0.5rem;
    border-radius: 16px;
    border: 1px solid var(--glass-border);
    background: rgba(15, 23, 42, 0.92);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    z-index: 40;
}

.tool-chip {
    border: 1px solid var(--glass-border);
    border-radius: 999px;
    min-width: 2.6rem;
    padding: 0.45rem 0.65rem;
    background: rgba(30, 41, 59, 0.75);
    color: var(--text);
    cursor: pointer;
    font-size: 1.3rem;
    touch-action: manipulation;
}

.tool-chip.is-active {
    background: var(--primary);
    color: #082f49;
    border-color: transparent;
    font-weight: 700;
}

.device-code-value {
    margin: 0.4rem 0;
    font-size: 2.5rem;
    font-weight: 800;
    letter-spacing: 0.12em;
    text-align: center;
}

.device-handshake-code {
    font-size: clamp(3rem, 10vw, 5.5rem);
    letter-spacing: 0.16em;
    margin: 0.5rem 0;
}

.device-connect-request-item {
    align-items: flex-start;
    gap: 0.75rem;
}

.device-connect-request-main {
    display: grid;
    gap: 0.2rem;
    min-width: 0;
    flex: 1;
}

.device-connect-request-code {
    margin: 0.2rem 0;
    font-size: 1.8rem;
    font-weight: 800;
    letter-spacing: 0.14em;
    line-height: 1;
}

.device-connect-request-actions {
    display: flex;
    gap: 0.4rem;
    flex-wrap: wrap;
}

.viewer-page-status {
    min-width: 4.8rem;
    text-align: center;
    font-variant-numeric: tabular-nums;
    color: var(--text);
    border: 1px solid var(--glass-border);
    border-radius: 10px;
    padding: 0.42rem 0.52rem;
    background: rgba(15, 23, 42, 0.45);
}

.viewer-page-status-button {
    cursor: pointer;
    font: inherit;
}

.viewer-page-status-button:hover:enabled {
    border-color: rgba(14, 165, 233, 0.55);
}

.viewer-page-status-button:focus-visible {
    outline: 2px solid rgba(14, 165, 233, 0.65);
    outline-offset: 1px;
}

.viewer-page-jump-modal {
    position: fixed;
    inset: 0;
    z-index: 2150;
    display: grid;
    place-items: center;
    padding: 1rem;
}

.viewer-page-jump-backdrop {
    position: absolute;
    inset: 0;
    border: none;
    background: rgba(2, 6, 23, 0.72);
}

.viewer-page-jump-panel {
    position: relative;
    z-index: 1;
    width: min(420px, 94vw);
    border-radius: 14px;
    border: 1px solid var(--glass-border);
    padding: 1rem;
    display: grid;
    gap: 0.65rem;
    background: rgba(15, 23, 42, 0.95);
}

.viewer-page-jump-panel h3 {
    margin: 0;
}

.viewer-page-jump-display {
    margin: 0;
    border: 1px solid var(--glass-border);
    border-radius: 10px;
    padding: 0.7rem 0.8rem;
    text-align: right;
    font-size: 1.6rem;
    font-weight: 800;
    letter-spacing: 0.05em;
    font-variant-numeric: tabular-nums;
    background: rgba(15, 23, 42, 0.55);
    text-align: center;
    color: var(--text);
    min-height: 3.1rem;
}

.viewer-page-jump-info {
    margin: -0.15rem 0 0.1rem;
    text-align: center;
    font-size: 0.85rem;
    font-variant-numeric: tabular-nums;
}

.viewer-page-jump-keypad {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0.5rem;
}

.viewer-page-jump-key {
    border: 1px solid var(--glass-border);
    border-radius: 10px;
    padding: 0.8rem 0.5rem;
    background: rgba(30, 41, 59, 0.78);
    color: var(--text);
    cursor: pointer;
    font-size: 1.15rem;
    font-weight: 700;
}

.viewer-page-jump-key:hover:enabled {
    border-color: rgba(14, 165, 233, 0.5);
}

.viewer-page-jump-key-secondary {
    background: rgba(15, 23, 42, 0.78);
}

.viewer-page-jump-go {
    min-height: 3rem;
}

.viewer-page-jump-go:disabled {
    opacity: 0.45;
    cursor: not-allowed;
}

.viewer-page-jump-close {
    width: 100%;
}

.viewer-container {
    margin-top: 1rem;
    width: 100%;
    min-height: 60vh;
    position: relative;
    border-radius: 12px;
    overflow: hidden;
    background: rgba(2, 6, 23, 0.6);
    border: 1px solid var(--glass-border);
    touch-action: none;
    user-select: none;
    -webkit-user-select: none;
    -webkit-touch-callout: none;
    -webkit-tap-highlight-color: transparent;
}

#pdfCanvas,
#inkCanvas {
    display: block;
    width: 100%;
    height: auto;
    transform-origin: top left;
}

#pdfCanvas {
    position: absolute;
    left: 0;
    top: 0;
    z-index: 1;
}

.ink-canvas {
    position: absolute;
    left: 0;
    top: 0;
    z-index: 2;
}

.viewer-container .canvas-container {
    position: absolute !important;
    left: 0;
    top: 0;
    z-index: 2;
}

.viewer-loading-overlay {
    position: absolute;
    inset: 0;
    z-index: 4;
    display: none;
    align-items: center;
    justify-content: center;
    background: rgba(2, 6, 23, 0.94);
    color: var(--text);
    font-weight: 700;
    letter-spacing: 0.04em;
    pointer-events: auto;
}

.viewer-container.is-loading .viewer-loading-overlay {
    display: flex;
}

.viewer-container.is-loading #pdfCanvas,
.viewer-container.is-loading #inkCanvas,
.viewer-container.is-loading .canvas-container {
    visibility: hidden;
}

.network-indicator {
    position: fixed;
    bottom: 1.1rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.3rem 0.85rem;
    border-radius: 999px;
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    z-index: 90;
    pointer-events: none;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border: 1px solid transparent;
    transition: color 0.3s, border-color 0.3s, background 0.3s;
}

.ni-checking,
.network-indicator.ni-online {
    color: rgba(148, 163, 184, 0.65);
    background: rgba(15, 23, 42, 0.45);
    border-color: rgba(148, 163, 184, 0.15);
}

.network-indicator.ni-offline {
    color: rgba(239, 68, 68, 0.85);
    background: rgba(15, 23, 42, 0.65);
    border-color: rgba(239, 68, 68, 0.3);
}

body.view-viewer .network-indicator {
    display: none;
}

body.view-viewer {
    padding: clamp(0.35rem, 1.6vh, 0.9rem);
}

body.view-viewer .app-shell {
    max-width: min(98vw, 1400px);
    min-height: calc(100dvh - 0.8rem);
    display: grid;
    align-content: center;
    justify-items: center;
}

body.view-viewer #viewerView {
    width: min(98vw, 1400px);
    max-height: calc(100dvh - 0.8rem);
    overflow: auto;
    margin: clamp(0.35rem, 1.6vh, 0.9rem) auto;
    user-select: none;
    -webkit-user-select: none;
    -webkit-touch-callout: none;
    -webkit-tap-highlight-color: transparent;
}

body.view-viewer .viewer-container {
    margin-top: 0.7rem;
    min-height: clamp(360px, 80dvh, 980px);
    height: clamp(360px, 80dvh, 980px);
}

.domain-branding-header {
    width: 100%;
    border-radius: 10px;
    overflow: hidden;
    margin-bottom: 0.85rem;
}

.domain-branding-header img {
    width: 100%;
    height: auto;
    max-height: 180px;
    object-fit: cover;
    display: block;
    border-radius: 10px;
}

.viewer-title-wrap {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    padding-left: 5px;
    min-width: 0;
}

.viewer-title-text {
    margin: 0;
}

.viewer-logo-wrap:not(.hidden) + .viewer-title-text {
    margin-left: 20px;
}

.viewer-header-actions {
    align-items: center;
}

.viewer-back-button {
    margin-left: 10px;
}

.viewer-logo-wrap {
    display: flex;
    align-items: center;
    justify-content: center;
    flex: 0 0 auto;
}

.viewer-logo-img {
    max-height: 36px;
    max-width: 96px;
    object-fit: contain;
    opacity: 0.94;
    display: block;
}

.update-prompt {
    position: fixed;
    right: 1rem;
    bottom: 1rem;
    width: 280px;
    border-radius: 12px;
    padding: 0.8rem;
    background: rgba(15, 23, 42, 0.95);
    border: 1px solid var(--glass-border);
}

body.modal-open {
    overflow: hidden;
}

.admin-modal-host {
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 2000;
}

.admin-modal-layer {
    position: absolute;
    inset: 0;
    display: grid;
    place-items: center;
    pointer-events: none;
    padding: 1rem;
}

.admin-modal-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(2, 6, 23, 0.62);
    pointer-events: auto;
}

.admin-modal-panel {
    width: min(860px, 96vw);
    max-height: 88vh;
    overflow: auto;
    border-radius: 14px;
    border: 1px solid var(--glass-border);
    background: rgba(15, 23, 42, 0.92);
    pointer-events: auto;
    position: relative;
    z-index: 1;
}

.admin-modal-chrome {
    position: sticky;
    top: 0;
    z-index: 2;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 0.75rem;
    padding: 0.7rem 0.85rem;
    background: rgba(15, 23, 42, 0.96);
    border-bottom: 1px solid var(--glass-border);
}

.admin-modal-title {
    margin: 0;
    font-size: 1rem;
    color: var(--text);
}

.admin-modal-actions {
    display: flex;
    align-items: center;
    gap: 0.45rem;
}

.admin-modal-close {
    padding: 0.55rem 0.8rem;
}

.admin-modal-save {
    padding: 0.55rem 0.8rem;
}

.admin-modal-content {
    padding: 0.5rem 0.85rem 0.9rem;
}

.admin-modal-content .admin-form {
    margin-top: 0;
}

.admin-modal-content .modal-content-drawer > h3:first-of-type,
.admin-modal-content .modal-content-drawer > h4:first-of-type,
.admin-modal-content .modal-content-drawer .admin-form > p.hint:first-of-type:not(.modal-keep),
.admin-modal-content .modal-content-drawer > p.hint:first-of-type:not(.modal-keep) {
    display: none;
}

.modal-save-source-hidden {
    display: none !important;
}

.modal-save-feedback {
    position: fixed;
    top: 1rem;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2200;
    padding: 0.65rem 0.95rem;
    border-radius: 10px;
    border: 1px solid rgba(34, 197, 94, 0.4);
    background: #0b7a2f;
    color: #fff;
    font-weight: 700;
    box-shadow: 0 10px 24px rgba(0, 0, 0, 0.28);
}

.hidden {
    display: none;
}

@media (max-width: 820px) {
    .session-header {
        flex-direction: column;
        align-items: stretch;
    }

    .header-actions,
    .menu-actions.inline {
        grid-template-columns: 1fr;
        display: grid;
    }

    body.view-viewer .session-header {
        flex-direction: row;
        align-items: center;
        flex-wrap: wrap;
    }

    body.view-viewer .header-actions {
        display: flex;
        flex-wrap: wrap;
        align-items: center;
        gap: 0.45rem;
        width: auto;
        grid-template-columns: none;
    }

    body.view-viewer .header-actions > * {
        width: auto;
    }

    body.view-viewer .viewer-back-button {
        margin-left: 0;
    }

    body.view-viewer .viewer-page-status {
        min-width: 4.3rem;
    }

    body.view-viewer .viewer-toolbox {
        left: 50%;
        right: auto;
        top: auto;
        bottom: 1rem;
        transform: translateX(-50%);
        flex-direction: row;
        gap: 0.5rem;
        padding: 0.45rem 0.55rem;
        border-radius: 999px;
    }
}