:root {
    color-scheme: light;
    --bg: #eef3f7;
    --panel: rgba(255, 255, 255, 0.94);
    --panel-border: rgba(17, 24, 39, 0.08);
    --ink: #142132;
    --muted: #5a6b7e;
    --accent: #0f6cbd;
    --accent-strong: #094e8a;
    --accent-soft: rgba(15, 108, 189, 0.12);
    --success: #0f7b49;
    --danger: #be3b2f;
    --shadow: 0 10px 24px rgba(18, 38, 63, 0.08);
    --radius-lg: 18px;
    --radius-md: 14px;
    --radius-sm: 10px;
    --font-sans: "Segoe UI Variable Text", "Segoe UI", Aptos, sans-serif;
    --accent-gradient-end: #3685ca;
    --bg-glow-a: rgba(15, 108, 189, 0.16);
    --bg-glow-b: rgba(26, 127, 55, 0.12);
    --field-bg: #ffffff;
    --field-border: rgba(17, 24, 39, 0.12);
    --field-focus-outline: rgba(15, 108, 189, 0.22);
    --field-focus-border: rgba(15, 108, 189, 0.46);
    --button-secondary-bg: rgba(255, 255, 255, 0.72);
    --button-secondary-border: rgba(17, 24, 39, 0.10);
    --button-secondary-ink: var(--ink);
    --badge-bg: rgba(15, 108, 189, 0.14);
    --badge-ink: var(--accent-strong);
    --badge-subtle-bg: rgba(17, 24, 39, 0.06);
    --badge-subtle-ink: var(--muted);
    --service-online-border: rgba(15, 123, 73, 0.16);
    --service-online-bg: linear-gradient(180deg, rgba(255, 255, 255, 0.96), rgba(232, 248, 239, 0.86));
    --service-offline-border: rgba(190, 59, 47, 0.18);
    --service-offline-bg: linear-gradient(180deg, rgba(255, 255, 255, 0.96), rgba(252, 239, 237, 0.92));
    --activity-info-border: rgba(15, 108, 189, 0.16);
    --activity-info-bg: linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(232, 241, 251, 0.92));
    --activity-info-ink: var(--accent-strong);
    --activity-success-border: rgba(15, 123, 73, 0.18);
    --activity-success-bg: linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(232, 248, 239, 0.92));
    --activity-success-ink: var(--success);
    --activity-error-border: rgba(190, 59, 47, 0.18);
    --activity-error-bg: linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(252, 239, 237, 0.94));
    --activity-error-ink: var(--danger);
    --activity-icon-bg: rgba(255, 255, 255, 0.78);
    --result-card-bg: rgba(255, 255, 255, 0.7);
    --result-card-border: rgba(17, 24, 39, 0.08);
    --result-card-selected-border: rgba(15, 108, 189, 0.28);
    --result-card-selected-bg: linear-gradient(180deg, rgba(255, 255, 255, 0.94), rgba(232, 241, 251, 0.8));
    --modal-border: rgba(17, 24, 39, 0.08);
    --icon-btn-bg: rgba(17, 24, 39, 0.06);
    --code-bg: rgba(17, 24, 39, 0.06);
}

[data-theme="dark"] {
    color-scheme: dark;
    --bg: #0b1220;
    --panel: rgba(26, 35, 50, 0.94);
    --panel-border: rgba(156, 201, 255, 0.12);
    --ink: #e6eef8;
    --muted: #a0aec0;
    --accent: #3aa0ff;
    --accent-strong: #9cc9ff;
    --accent-soft: rgba(58, 160, 255, 0.16);
    --success: #39d98a;
    --danger: #ff8a80;
    --shadow: 0 18px 36px rgba(0, 0, 0, 0.28);
    --accent-gradient-end: #2681d6;
    --bg-glow-a: rgba(58, 160, 255, 0.18);
    --bg-glow-b: rgba(57, 217, 138, 0.10);
    --field-bg: rgba(11, 18, 32, 0.88);
    --field-border: rgba(156, 201, 255, 0.18);
    --field-focus-outline: rgba(58, 160, 255, 0.22);
    --field-focus-border: rgba(58, 160, 255, 0.42);
    --button-secondary-bg: rgba(37, 51, 73, 0.74);
    --button-secondary-border: rgba(156, 201, 255, 0.14);
    --button-secondary-ink: var(--ink);
    --badge-bg: rgba(58, 160, 255, 0.16);
    --badge-ink: #d8ecff;
    --badge-subtle-bg: rgba(230, 238, 248, 0.08);
    --badge-subtle-ink: var(--muted);
    --service-online-border: rgba(57, 217, 138, 0.18);
    --service-online-bg: linear-gradient(180deg, rgba(26, 35, 50, 0.96), rgba(16, 47, 38, 0.92));
    --service-offline-border: rgba(255, 138, 128, 0.24);
    --service-offline-bg: linear-gradient(180deg, rgba(26, 35, 50, 0.96), rgba(64, 28, 28, 0.92));
    --activity-info-border: rgba(58, 160, 255, 0.22);
    --activity-info-bg: linear-gradient(180deg, rgba(26, 35, 50, 0.98), rgba(26, 48, 72, 0.92));
    --activity-info-ink: #d8ecff;
    --activity-success-border: rgba(57, 217, 138, 0.22);
    --activity-success-bg: linear-gradient(180deg, rgba(26, 35, 50, 0.98), rgba(16, 47, 38, 0.94));
    --activity-success-ink: #8ff0c4;
    --activity-error-border: rgba(255, 138, 128, 0.28);
    --activity-error-bg: linear-gradient(180deg, rgba(26, 35, 50, 0.98), rgba(64, 28, 28, 0.94));
    --activity-error-ink: #ffd0cb;
    --activity-icon-bg: rgba(11, 18, 32, 0.48);
    --result-card-bg: rgba(11, 18, 32, 0.48);
    --result-card-border: rgba(156, 201, 255, 0.12);
    --result-card-selected-border: rgba(58, 160, 255, 0.34);
    --result-card-selected-bg: linear-gradient(180deg, rgba(26, 35, 50, 0.96), rgba(37, 51, 73, 0.90));
    --modal-border: rgba(156, 201, 255, 0.12);
    --icon-btn-bg: rgba(230, 238, 248, 0.08);
    --code-bg: rgba(230, 238, 248, 0.08);
}

[data-theme="ai"] {
    color-scheme: dark;
    --bg: #0a0e27;
    --panel: rgba(26, 31, 58, 0.94);
    --panel-border: rgba(139, 233, 255, 0.14);
    --ink: #e0f7ff;
    --muted: #a8d8ff;
    --accent: #00d4ff;
    --accent-strong: #8be9ff;
    --accent-soft: rgba(0, 212, 255, 0.16);
    --success: #3ce6c3;
    --danger: #ff8ac9;
    --shadow: 0 18px 36px rgba(0, 212, 255, 0.12);
    --accent-gradient-end: #00a8cc;
    --bg-glow-a: rgba(0, 212, 255, 0.18);
    --bg-glow-b: rgba(124, 58, 237, 0.12);
    --field-bg: rgba(10, 14, 39, 0.88);
    --field-border: rgba(139, 233, 255, 0.20);
    --field-focus-outline: rgba(0, 212, 255, 0.22);
    --field-focus-border: rgba(0, 212, 255, 0.42);
    --button-secondary-bg: rgba(45, 53, 97, 0.74);
    --button-secondary-border: rgba(139, 233, 255, 0.14);
    --button-secondary-ink: var(--ink);
    --badge-bg: rgba(0, 212, 255, 0.16);
    --badge-ink: #d8fbff;
    --badge-subtle-bg: rgba(224, 247, 255, 0.08);
    --badge-subtle-ink: var(--muted);
    --service-online-border: rgba(60, 230, 195, 0.18);
    --service-online-bg: linear-gradient(180deg, rgba(26, 31, 58, 0.96), rgba(10, 63, 73, 0.92));
    --service-offline-border: rgba(255, 138, 201, 0.24);
    --service-offline-bg: linear-gradient(180deg, rgba(26, 31, 58, 0.96), rgba(73, 24, 56, 0.92));
    --activity-info-border: rgba(139, 233, 255, 0.22);
    --activity-info-bg: linear-gradient(180deg, rgba(26, 31, 58, 0.98), rgba(14, 53, 76, 0.92));
    --activity-info-ink: #d8fbff;
    --activity-success-border: rgba(60, 230, 195, 0.22);
    --activity-success-bg: linear-gradient(180deg, rgba(26, 31, 58, 0.98), rgba(10, 63, 73, 0.94));
    --activity-success-ink: #98fff1;
    --activity-error-border: rgba(255, 138, 201, 0.28);
    --activity-error-bg: linear-gradient(180deg, rgba(26, 31, 58, 0.98), rgba(73, 24, 56, 0.94));
    --activity-error-ink: #ffd4f0;
    --activity-icon-bg: rgba(10, 14, 39, 0.5);
    --result-card-bg: rgba(10, 14, 39, 0.50);
    --result-card-border: rgba(139, 233, 255, 0.14);
    --result-card-selected-border: rgba(0, 212, 255, 0.34);
    --result-card-selected-bg: linear-gradient(180deg, rgba(26, 31, 58, 0.96), rgba(45, 53, 97, 0.92));
    --modal-border: rgba(139, 233, 255, 0.14);
    --icon-btn-bg: rgba(224, 247, 255, 0.08);
    --code-bg: rgba(224, 247, 255, 0.08);
}

* {
    box-sizing: border-box;
}

[hidden] {
    display: none !important;
}

html,
body {
    margin: 0;
    min-height: 100%;
    font-family: var(--font-sans);
    background:
        radial-gradient(circle at top left, var(--bg-glow-a), transparent 32%),
        radial-gradient(circle at bottom right, var(--bg-glow-b), transparent 30%),
        var(--bg);
    color: var(--ink);
}

body {
    padding: 12px;
}

.taskpane-shell,
.landing-shell {
    max-width: 960px;
    margin: 0 auto;
}

.workspace-layout {
    display: grid;
    gap: 12px;
}

.hero-panel,
.panel,
.service-banner,
.landing-card,
.modal-panel {
    background: var(--panel);
    border: 1px solid var(--panel-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
}

.hero-panel {
    display: flex;
    justify-content: space-between;
    gap: 14px;
    align-items: center;
    padding: 16px 18px;
    margin-bottom: 12px;
}

.service-banner {
    display: flex;
    justify-content: space-between;
    gap: 14px;
    align-items: center;
    padding: 12px 16px;
    margin-bottom: 12px;
}

.activity-banner {
    position: sticky;
    top: 12px;
    z-index: 10;
    display: flex;
    gap: 12px;
    align-items: flex-start;
    padding: 12px 14px;
    margin-bottom: 12px;
    border: 1px solid var(--activity-info-border);
    background: var(--activity-info-bg);
    box-shadow: var(--shadow);
}

.activity-banner.is-info {
    color: var(--activity-info-ink);
    border-color: var(--activity-info-border);
    background: var(--activity-info-bg);
}

.activity-banner.is-success {
    color: var(--activity-success-ink);
    border-color: var(--activity-success-border);
    background: var(--activity-success-bg);
}

.activity-banner.is-error {
    color: var(--activity-error-ink);
    border-color: var(--activity-error-border);
    background: var(--activity-error-bg);
}

.activity-banner__icon {
    flex: 0 0 36px;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: grid;
    place-items: center;
    background: var(--activity-icon-bg);
    font-size: 0.72rem;
    font-weight: 800;
    letter-spacing: 0.08em;
}

.activity-banner__body {
    min-width: 0;
}

.activity-banner__body .panel-eyebrow {
    margin-bottom: 4px;
}

.activity-banner__body h2 {
    margin: 0;
    font-size: 0.96rem;
}

.activity-banner__message {
    margin: 4px 0 0;
    font-size: 0.86rem;
    line-height: 1.45;
    color: var(--muted);
}

.activity-banner__body .text-btn {
    display: inline-flex;
}

.link-stack {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
    margin-top: 6px;
}

.service-banner.is-online {
    border-color: var(--service-online-border);
    background: var(--service-online-bg);
}

.service-banner.is-offline {
    border-color: var(--service-offline-border);
    background: var(--service-offline-bg);
}

.hero-panel h1,
.landing-card h1,
.panel h2,
.modal-header h2 {
    margin: 0;
    line-height: 1.1;
}

.hero-panel h1 {
    font-size: 1.55rem;
    font-weight: 700;
}

.panel h2,
.modal-header h2,
.service-banner h2 {
    font-size: 1.02rem;
    font-weight: 700;
}

.hero-copy,
.landing-card p,
.status-text,
.message-meta dd,
.path-display,
.landing-list {
    color: var(--muted);
}

.hero-copy.compact {
    margin-top: 0;
}

.hero-copy {
    margin: 8px 0 0;
    font-size: 0.94rem;
    line-height: 1.45;
}

.eyebrow,
.panel-eyebrow {
    margin: 0 0 6px;
    text-transform: uppercase;
    letter-spacing: 0.16em;
    font-size: 0.66rem;
    font-weight: 700;
    color: var(--accent);
}

.panel {
    padding: 16px 18px;
}

.panel-header,
.modal-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 12px;
}

.panel-header {
    margin-bottom: 10px;
}

.info-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
}

.label {
    display: block;
    margin-bottom: 4px;
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--muted);
}

.message-meta {
    display: grid;
    gap: 10px;
    margin: 0;
}

.message-meta div {
    display: grid;
    gap: 4px;
}

.message-meta dt {
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--muted);
}

.message-meta dd,
.path-display {
    margin: 0;
    word-break: break-word;
    font-size: 0.92rem;
    line-height: 1.4;
}

.action-row,
.landing-actions,
.folder-toolbar,
.create-folder-row,
.search-row,
.toggle-row {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    align-items: center;
}

.search-row input {
    flex: 1 1 260px;
}

.create-folder-row {
    margin-top: 10px;
}

.create-folder-row input {
    flex: 1 1 240px;
}

.toggle-row {
    justify-content: space-between;
    margin-top: 12px;
}

.toggle {
    display: inline-flex;
    gap: 8px;
    align-items: center;
    color: var(--muted);
    font-size: 0.88rem;
}

.stack-form {
    display: grid;
    gap: 12px;
}

.field {
    display: grid;
    gap: 6px;
}

.field span {
    font-size: 0.84rem;
    color: var(--muted);
}

input {
    width: 100%;
    min-height: 40px;
    padding: 9px 12px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--field-border);
    background: var(--field-bg);
    color: var(--ink);
    font: inherit;
    font-size: 0.92rem;
}

input:focus {
    outline: 2px solid var(--field-focus-outline);
    border-color: var(--field-focus-border);
}

button,
.primary-btn,
.secondary-btn,
.ghost-btn,
.text-btn {
    appearance: none;
    border: none;
    border-radius: 999px;
    font: inherit;
    cursor: pointer;
    text-decoration: none;
    transition: transform 120ms ease, background-color 120ms ease, opacity 120ms ease;
}

button:disabled,
.primary-btn[disabled],
.secondary-btn[disabled],
.ghost-btn[disabled] {
    opacity: 0.5;
    cursor: not-allowed;
}

button:not(:disabled):hover,
.primary-btn:hover,
.secondary-btn:hover,
.ghost-btn:hover,
.text-btn:hover {
    transform: translateY(-1px);
}

.primary-btn,
.secondary-btn,
.ghost-btn {
    min-height: 36px;
    padding: 0 14px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-size: 0.9rem;
    font-weight: 600;
}

.primary-btn {
    background: linear-gradient(135deg, var(--accent), var(--accent-gradient-end));
    color: #fff;
}

.secondary-btn {
    background: var(--button-secondary-bg);
    color: var(--button-secondary-ink);
    border: 1px solid var(--button-secondary-border);
}

.ghost-btn {
    background: var(--accent-soft);
    color: var(--accent-strong);
}

.text-btn {
    background: transparent;
    color: var(--accent-strong);
    padding: 0;
    font-size: 0.88rem;
}

.badge {
    display: inline-flex;
    align-items: center;
    padding: 5px 9px;
    border-radius: 999px;
    background: var(--badge-bg);
    color: var(--badge-ink);
    font-size: 0.72rem;
    font-weight: 700;
}

.badge.subtle {
    background: var(--badge-subtle-bg);
    color: var(--badge-subtle-ink);
}

.status-text {
    min-height: 1.2em;
    margin: 10px 0 0;
    font-size: 0.84rem;
    line-height: 1.4;
}

.status-text.is-info {
    color: var(--accent-strong);
}

.status-text.is-error {
    color: var(--danger);
}

.status-text.is-success {
    color: var(--success);
}

.result-list {
    display: grid;
    gap: 8px;
    margin-top: 12px;
}

.result-card {
    padding: 12px 14px;
    border-radius: var(--radius-md);
    border: 1px solid var(--result-card-border);
    background: var(--result-card-bg);
}

.result-card h3 {
    margin: 0;
    font-size: 0.95rem;
}

.result-card p {
    margin: 6px 0;
    color: var(--muted);
    font-size: 0.86rem;
}

.result-card .meta {
    font-size: 0.78rem;
    color: var(--muted);
}

.result-card .action-row {
    margin-top: 8px;
}

.result-card.is-selected {
    border-color: var(--result-card-selected-border);
    background: var(--result-card-selected-bg);
}

.modal-backdrop {
    position: fixed;
    inset: 0;
    display: grid;
    place-items: center;
    padding: 14px;
    background: rgba(15, 23, 42, 0.42);
    backdrop-filter: blur(8px);
}

.modal-panel {
    width: min(720px, 100%);
    max-height: min(88vh, 900px);
    overflow: auto;
}

.modal-header,
.modal-body {
    padding: 14px 16px;
}

.modal-header {
    border-bottom: 1px solid var(--modal-border);
}

.icon-btn {
    width: 34px;
    height: 34px;
    border-radius: 50%;
    background: var(--icon-btn-bg);
    color: var(--ink);
    font-size: 1.1rem;
}

.landing-page {
    display: grid;
    min-height: 100vh;
    place-items: center;
}

.landing-card {
    padding: 34px;
    max-width: 760px;
}

.landing-list {
    margin: 18px 0 0;
    padding-left: 18px;
    line-height: 1.6;
}

code {
    padding: 2px 6px;
    border-radius: 8px;
    background: var(--code-bg);
    color: var(--ink);
}

@media (max-width: 680px) {
    body {
        padding: 10px;
    }

    .hero-panel,
    .service-banner,
    .panel,
    .landing-card {
        padding: 14px;
    }

    .hero-panel,
    .service-banner,
    .panel-header,
    .modal-header,
    .toggle-row {
        flex-direction: column;
        align-items: stretch;
    }

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