:root {
    --bg: #f5f7fb;
    --surface: #ffffff;
    --surface-2: #f8fafc;
    --surface-3: #eef2f7;
    --ink: #0f172a;
    --muted: #475569;
    --line: #dbe3ee;
    --accent: #2563eb;
    --accent-dark: #1d4ed8;
    --accent-soft: #eff6ff;
    --success: #166534;
    --success-soft: #dcfce7;
    --danger: #b91c1c;
    --danger-soft: #fee2e2;
    --shadow: 0 10px 30px rgba(15, 23, 42, 0.08);
    --page-gradient-start: #f8fbff;
    --page-gradient-end: #eef3f9;
    --code-bg: #eff6ff;
    --disabled-bg: #cbd5e1;
    --disabled-ink: #64748b;
    --inactive-badge-bg: #f1f5f9;
    --inactive-badge-ink: #475569;
    --backdrop: rgba(15, 23, 42, 0.45);
    --theme-toggle-shadow: 0 8px 20px rgba(15, 23, 42, 0.1);
}

body[data-theme="dark"] {
    --bg: #09111f;
    --surface: #111b2f;
    --surface-2: #16233d;
    --surface-3: #1b2b49;
    --ink: #e5edf8;
    --muted: #9fb0c7;
    --line: #2a3b5d;
    --accent: #60a5fa;
    --accent-dark: #3b82f6;
    --accent-soft: #12233d;
    --success: #86efac;
    --success-soft: rgba(34, 197, 94, 0.18);
    --danger: #fca5a5;
    --danger-soft: rgba(239, 68, 68, 0.18);
    --shadow: 0 14px 36px rgba(2, 8, 23, 0.45);
    --page-gradient-start: #08111f;
    --page-gradient-end: #0d1728;
    --code-bg: #12233d;
    --disabled-bg: #334155;
    --disabled-ink: #94a3b8;
    --inactive-badge-bg: #1f2d45;
    --inactive-badge-ink: #9fb0c7;
    --backdrop: rgba(2, 6, 23, 0.72);
    --theme-toggle-shadow: 0 8px 22px rgba(2, 8, 23, 0.45);
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: "Segoe UI", "Helvetica Neue", sans-serif;
    color: var(--ink);
    background: linear-gradient(180deg, var(--page-gradient-start) 0%, var(--page-gradient-end) 100%);
    min-height: 100vh;
}

.page-controls {
    position: fixed;
    top: 18px;
    right: 18px;
    z-index: 1000;
}

.theme-toggle {
    box-shadow: var(--theme-toggle-shadow);
}

.shell,
.login-shell {
    width: min(1160px, calc(100% - 32px));
    margin: 0 auto;
    padding: 32px 0 40px;
}

.login-page {
    display: grid;
    place-items: center;
}

.login-shell {
    max-width: 760px;
    width: min(760px, calc(100% - 32px));
    display: grid;
    gap: 20px;
}

.surface,
.summary-card,
.login-card,
.login-notes,
.channel-card {
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: 18px;
    padding: 24px;
    box-shadow: var(--shadow);
}

.login-card {
    padding: 32px;
    text-align: left;
}

.login-notes {
    display: grid;
    grid-template-columns: 1fr;
    gap: 24px;
}

.topbar {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 24px;
    margin-bottom: 20px;
}

.topbar-meta {
    display: flex;
    align-items: center;
    gap: 12px;
}

.summary-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
    margin-bottom: 20px;
}

.workspace-grid {
    display: grid;
    grid-template-columns: 340px minmax(0, 1fr);
    gap: 20px;
}

.workspace-grid.commands-layout {
    grid-template-columns: 320px minmax(0, 1fr);
}

.variable-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
}

.sheet-block {
    margin-top: 24px;
    padding-top: 24px;
    border-top: 1px solid var(--line);
}

.eyebrow {
    text-transform: uppercase;
    letter-spacing: 0.12em;
    font-size: 0.72rem;
    margin: 0 0 8px;
    color: var(--accent);
    font-weight: 700;
}

h1,
h2,
h3,
h4,
p {
    margin-top: 0;
}

h1 {
    font-size: clamp(2rem, 4vw, 2.8rem);
    margin-bottom: 8px;
}

h2 {
    font-size: 1.15rem;
    margin-bottom: 16px;
}

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

.lead {
    font-size: 1.05rem;
    color: var(--ink);
}

.stack {
    display: grid;
    gap: 14px;
}

label {
    display: grid;
    gap: 6px;
    font-weight: 600;
}

input,
select,
textarea,
button,
.button-link {
    font: inherit;
}

input,
select,
textarea {
    width: 100%;
    padding: 11px 12px;
    border-radius: 12px;
    border: 1px solid var(--line);
    background: var(--surface-2);
    color: var(--ink);
}

textarea {
    resize: vertical;
}

button,
.primary-link,
.secondary-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    text-decoration: none;
    border: none;
    border-radius: 12px;
    padding: 11px 16px;
    background: var(--accent);
    color: white;
    cursor: pointer;
    transition: background 120ms ease, border-color 120ms ease;
    font-weight: 600;
}

button:hover,
.primary-link:hover,
.secondary-link:hover {
    background: var(--accent-dark);
}

button:disabled,
.ghost:disabled,
.secondary-link:disabled {
    background: var(--surface-3);
    border-color: var(--line);
    color: var(--disabled-ink);
    cursor: not-allowed;
}

.disabled-link,
.disabled-link:hover {
    background: var(--disabled-bg);
    color: var(--disabled-ink);
    cursor: not-allowed;
    pointer-events: none;
}

.secondary-link,
.ghost {
    background: var(--surface);
    border: 1px solid var(--line);
    color: var(--ink);
}

.secondary-link:hover,
.ghost:hover {
    background: var(--surface-2);
}

.inline-actions,
.section-heading {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
}

.section-heading {
    margin-bottom: 16px;
}

.section-heading.compact {
    margin-bottom: 12px;
}

.channel-list {
    display: grid;
    gap: 16px;
}

.channel-card {
    padding: 20px;
}

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

.state-badge {
    display: inline-flex;
    align-items: center;
    border-radius: 999px;
    padding: 6px 10px;
    font-size: 0.82rem;
    font-weight: 700;
}

.state-badge.active {
    background: var(--success-soft);
    color: var(--success);
}

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

.checkbox {
    display: flex;
    gap: 10px;
    align-items: center;
}

.checkbox input {
    width: auto;
}

.flash {
    padding: 14px 16px;
    border-radius: 12px;
    margin-bottom: 16px;
    border: 1px solid var(--line);
}

.flash.success {
    background: var(--success-soft);
    color: var(--success);
}

.flash.error,
.error {
    background: var(--danger-soft);
    color: var(--danger);
}

.notice {
    padding: 12px 14px;
    border-radius: 12px;
    border: 1px solid transparent;
}

.hidden {
    display: none;
}

.field-help {
    font-size: 0.88rem;
    font-weight: 400;
    line-height: 1.4;
}

.option-group {
    display: grid;
    gap: 12px;
}

.option-group-header {
    display: grid;
    gap: 2px;
}

.option-group-header strong {
    font-size: 0.95rem;
}

.option-divider {
    height: 1px;
    background: var(--line);
    margin: 2px 0;
}

.commands-output {
    display: grid;
    gap: 10px;
}

.commands-surface {
    display: flex;
    flex-direction: column;
    min-height: 0;
}

.commands-surface .commands-output {
    flex: 1 1 auto;
    min-height: 0;
    overflow-y: auto;
    padding-right: 4px;
}

.commands-variables-surface {
    margin-top: 20px;
}

.command-filter {
    display: grid;
    gap: 6px;
    min-width: 220px;
}

.admin-page .summary-grid,
.admin-page .admin-tools-grid,
.admin-page .admin-search-surface {
    margin-top: 20px;
}

.event-feature-row {
    display: grid;
    grid-template-columns: minmax(170px, 220px) minmax(0, 1fr);
    gap: 10px;
    align-items: center;
}

.event-feature-row.is-disabled {
    opacity: 0.65;
}

.command-row {
    display: grid;
    gap: 10px;
    padding: 14px;
    border-radius: 14px;
    border: 1px solid var(--line);
    background: var(--surface-2);
}

.command-row form {
    display: grid;
    gap: 10px;
}

.list-row {
    display: flex;
    justify-content: space-between;
    gap: 12px;
    align-items: start;
}

.command-dialog {
    width: min(640px, calc(100% - 32px));
    border: 1px solid var(--line);
    border-radius: 18px;
    padding: 0;
    background: var(--surface);
    color: var(--ink);
    box-shadow: var(--shadow);
}

.command-dialog::backdrop {
    background: var(--backdrop);
}

.command-dialog-form {
    padding: 24px;
}

.feature-panel {
    border: 1px solid var(--line);
    border-radius: 14px;
    background: var(--surface-2);
    padding: 0 16px;
}

.feature-panel summary {
    cursor: pointer;
    font-weight: 700;
    padding: 16px 0;
}

.feature-panel-body {
    padding: 0 0 16px;
}

.search-results {
    margin-top: 16px;
}

.search-results .muted {
    margin: 0;
}

.search-table-wrap {
    overflow: auto;
    border: 1px solid var(--line);
    border-radius: 14px;
    background: var(--surface);
}

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

.search-table th,
.search-table td {
    padding: 12px 14px;
    text-align: left;
    vertical-align: top;
    border-bottom: 1px solid var(--line);
}

.search-table th {
    background: var(--surface-2);
    font-size: 0.85rem;
}

.search-table tr:last-child td {
    border-bottom: none;
}

.meta-list {
    display: grid;
    gap: 12px;
    margin: 0;
}

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

.meta-list dt {
    font-size: 0.8rem;
    color: var(--muted);
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.meta-list dd {
    margin: 0;
    font-weight: 600;
}

.action-stack {
    display: grid;
    gap: 10px;
}

.session-pill {
    display: grid;
    gap: 2px;
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: 12px;
    padding: 10px 12px;
    min-width: 180px;
}

.session-pill span {
    color: var(--muted);
    font-size: 0.82rem;
}

.login-meta {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    margin-top: 16px;
}

.login-meta span {
    border: 1px solid var(--line);
    background: var(--surface-2);
    border-radius: 999px;
    padding: 6px 10px;
    color: var(--muted);
    font-size: 0.85rem;
}

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

@media (max-width: 860px) {
    .topbar,
    .summary-grid,
    .workspace-grid,
    .login-notes,
    .variable-grid {
        display: grid;
        grid-template-columns: 1fr;
    }

    .page-controls {
        top: 12px;
        right: 12px;
    }
}