:root {
    --tower-bg: #f5f7fb;
    --tower-panel: #ffffff;
    --tower-panel-2: #f8fafc;
    --tower-text: #172033;
    --tower-muted: #667085;
    --tower-line: #d7dee8;
    --tower-accent: #0f766e;
    --tower-accent-2: #2563eb;
    --tower-shadow: 0 14px 34px rgba(15, 23, 42, 0.08);
}

body {
    background: var(--tower-bg);
    color: var(--tower-text);
    overflow-x: hidden;
}

header {
    background: #f8fafc;
    color: var(--tower-text);
    padding: 18px 20px;
    text-align: center;
    border-bottom: 1px solid var(--tower-line);
    box-shadow: none;
}

.tower-brand {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.tower-brand img {
    width: 50px;
    height: auto;
}

.tower-brand h1,
.tower-brand p {
    margin: 0;
}

.tower-brand p,
.lede,
.panel-heading p {
    color: var(--tower-muted);
}

nav a {
    margin: 0 10px;
    color: var(--tower-text);
    text-decoration: none;
}

nav a:hover {
    color: var(--tower-accent);
}

#menu-button {
    top: 22px !important;
    left: 20px !important;
    width: 48px !important;
    height: 48px !important;
    padding: 0 !important;
    border: 1px solid var(--tower-line) !important;
    border-radius: 8px !important;
    background: var(--tower-panel) !important;
    color: var(--tower-text) !important;
    box-shadow: 0 4px 12px rgba(31, 45, 61, 0.08) !important;
    font-size: 28px !important;
}

#menu-button:hover {
    background: var(--tower-panel-2) !important;
}

#menu-button.sidebar-active {
    left: 300px !important;
}

#theme-switch.theme-button {
    top: 16px !important;
    right: 20px !important;
    padding: 8px 13px !important;
    border: 1px solid var(--tower-line) !important;
    border-radius: 8px !important;
    background: var(--tower-panel) !important;
    color: var(--tower-text) !important;
    box-shadow: 0 4px 12px rgba(31, 45, 61, 0.08) !important;
    font-size: 0.9rem !important;
    font-weight: 800 !important;
}

.tower-shell {
    width: min(1180px, calc(100% - 28px));
    margin: 24px auto;
}

.tower-topbar,
.tower-panel {
    background: var(--tower-panel);
    border: 1px solid var(--tower-line);
    border-radius: 8px;
    box-shadow: var(--tower-shadow);
}

.tower-topbar {
    display: flex;
    align-items: end;
    justify-content: space-between;
    gap: 20px;
    padding: 22px;
}

.eyebrow {
    margin: 0 0 6px;
    color: var(--tower-accent);
    font-size: 0.78rem;
    font-weight: 800;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.tower-topbar h2 {
    margin: 0;
    font-size: 2rem;
    letter-spacing: 0;
}

.lede {
    margin: 8px 0 0;
}

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

button,
input {
    font: inherit;
}

.secondary-action,
.info-chip,
.docs-link {
    border: 1px solid var(--tower-line);
    border-radius: 8px;
    background: var(--tower-panel);
    color: var(--tower-text);
    cursor: pointer;
    font-weight: 800;
    letter-spacing: 0;
    padding: 9px 13px;
    text-transform: none;
    box-shadow: none;
    text-decoration: none;
}

.secondary-action:hover,
.info-chip:hover,
.info-chip:focus,
.docs-link:hover,
.docs-link:focus {
    background: var(--tower-panel-2);
    border-color: var(--tower-accent);
    box-shadow: none;
    text-decoration: none;
}

.tower-grid {
    display: grid;
    grid-template-columns: minmax(300px, 390px) minmax(0, 1fr);
    gap: 18px;
    margin-top: 18px;
}

.tower-panel {
    min-width: 0;
    overflow: visible;
}

.panel-heading {
    padding: 16px 18px 13px;
    border-bottom: 1px solid var(--tower-line);
}

.panel-heading h3 {
    margin: 0;
    font-size: 1.1rem;
}

.panel-heading p {
    margin: 4px 0 0;
    font-size: 0.9rem;
}

.controls-panel {
    padding-bottom: 18px;
}

.mode-toggle {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 8px;
    padding: 18px 18px 0;
    margin: 0;
    border: none;
}

.mode-toggle legend,
.field-section-title,
.tower-field span,
.metric-card span {
    color: var(--tower-muted);
    font-size: 0.72rem;
    font-weight: 800;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.mode-toggle legend {
    grid-column: 1 / -1;
}

.mode-toggle label {
    position: relative;
}

.mode-toggle input {
    position: absolute;
    opacity: 0;
    pointer-events: none;
}

.mode-toggle span {
    display: block;
    border: 1px solid var(--tower-line);
    border-radius: 8px;
    background: var(--tower-panel-2);
    color: var(--tower-text);
    cursor: pointer;
    font-weight: 800;
    padding: 10px;
    text-align: center;
}

.mode-toggle input:checked + span {
    background: var(--tower-accent);
    border-color: var(--tower-accent);
    color: #ffffff;
}

.field-section-title {
    padding: 18px 18px 0;
}

.field-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
    padding: 12px 18px 0;
}

.field-grid-small {
    padding-top: 14px;
}

.tower-field {
    display: flex;
    flex-direction: column;
    gap: 6px;
    min-width: 0;
}

.tower-field input {
    width: 100%;
    box-sizing: border-box;
    border: 1px solid var(--tower-line);
    border-radius: 8px;
    background: var(--tower-panel);
    color: var(--tower-text);
    font-weight: 800;
    padding: 10px 11px;
    outline: none;
}

.tower-field input:focus {
    border-color: var(--tower-accent-2);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.12);
}

.results-panel {
    position: relative;
    padding-bottom: 18px;
}

.metric-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 12px;
    padding: 18px 18px 0;
}

.metric-card {
    min-width: 0;
    border: 1px solid var(--tower-line);
    border-radius: 8px;
    background: var(--tower-panel-2);
    padding: 13px;
}

.metric-card strong {
    display: block;
    margin-top: 6px;
    color: var(--tower-text);
    font-size: 1.22rem;
    line-height: 1.15;
    overflow-wrap: anywhere;
}

.primary-metric {
    background: rgba(15, 118, 110, 0.08);
    border-color: rgba(15, 118, 110, 0.28);
}

.detail-list {
    margin: 16px 18px 0;
    border: 1px solid var(--tower-line);
    border-radius: 8px;
    overflow: hidden;
}

.detail-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 10px 12px;
    border-top: 1px solid var(--tower-line);
    background: var(--tower-panel);
}

.detail-row:first-child {
    border-top: none;
}

.detail-row span {
    color: var(--tower-muted);
}

.detail-row strong {
    text-align: right;
    font-variant-numeric: tabular-nums;
}

.reference-row {
    position: relative;
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    padding: 16px 18px 0;
}

.info-chip,
.docs-link {
    display: inline-flex;
    align-items: center;
    min-height: 36px;
    padding: 7px 11px;
    font-size: 0.88rem;
}

.tooltip-text {
    position: absolute;
    left: 18px;
    right: 18px;
    bottom: calc(100% + 8px);
    z-index: 5;
    max-width: 560px;
    padding: 10px 12px;
    border: 1px solid var(--tower-line);
    border-radius: 8px;
    background: var(--tower-panel);
    color: var(--tower-text);
    box-shadow: var(--tower-shadow);
    font-size: 0.9rem;
    line-height: 1.4;
    opacity: 0;
    pointer-events: none;
    transform: translateY(4px);
    transition: opacity 0.15s ease, transform 0.15s ease;
}

.info-chip:hover + .tooltip-text,
.info-chip:focus + .tooltip-text {
    opacity: 1;
    transform: translateY(0);
}

body.dark-mode,
:root.site-dark body {
    --tower-bg: #0f172a;
    --tower-panel: #111827;
    --tower-panel-2: rgba(255, 255, 255, 0.045);
    --tower-text: #f3f4f6;
    --tower-muted: #cbd5e1;
    --tower-line: rgba(255, 255, 255, 0.16);
    --tower-accent: #2dd4bf;
    --tower-accent-2: #38bdf8;
    --tower-shadow: none;
}

body.dark-mode header,
:root.site-dark header {
    background: #111827;
    color: var(--tower-text);
}

body.dark-mode nav a,
:root.site-dark nav a {
    color: #e5e7eb;
}

body.dark-mode #menu-button,
:root.site-dark #menu-button,
body.dark-mode #theme-switch.theme-button,
:root.site-dark #theme-switch.theme-button {
    background: rgba(255, 255, 255, 0.04) !important;
    border-color: var(--tower-line) !important;
    color: var(--tower-text) !important;
    box-shadow: none !important;
}

:root.site-dark .tower-shell .secondary-action,
:root.site-dark .tower-shell .info-chip,
:root.site-dark .tower-shell .docs-link,
body.dark-mode .tower-shell .secondary-action,
body.dark-mode .tower-shell .info-chip,
body.dark-mode .tower-shell .docs-link {
    background: transparent !important;
    border: 1px solid var(--tower-line) !important;
    color: var(--tower-text) !important;
    box-shadow: none !important;
}

:root.site-dark .tower-shell .secondary-action:hover,
:root.site-dark .tower-shell .info-chip:hover,
:root.site-dark .tower-shell .docs-link:hover,
body.dark-mode .tower-shell .secondary-action:hover,
body.dark-mode .tower-shell .info-chip:hover,
body.dark-mode .tower-shell .docs-link:hover {
    background: var(--tower-panel-2) !important;
}

@media (max-width: 960px) {
    .tower-grid {
        grid-template-columns: 1fr;
    }

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

@media (max-width: 620px) {
    header {
        padding: 18px 8px 14px;
        overflow: hidden;
    }

    nav {
        gap: 8px;
    }

    nav a {
        margin: 0;
        padding: 5px 6px;
        font-size: 0.9rem;
    }

    .tower-brand {
        max-width: calc(100% - 148px);
        margin: 0 auto;
    }

    .tower-brand h1 {
        font-size: 1.65rem;
    }

    .tower-brand p {
        font-size: 0.9rem;
    }

    .tower-brand img {
        width: 42px;
    }

    #menu-button {
        top: 22px !important;
        left: 8px !important;
    }

    #theme-switch.theme-button {
        top: 18px !important;
        right: 8px !important;
        max-width: 76px !important;
        padding: 7px 8px !important;
        overflow: hidden !important;
        font-size: 0.78rem !important;
        white-space: nowrap !important;
    }

    .tower-shell {
        width: calc(100% - 18px);
        margin: 12px auto;
    }

    .tower-topbar {
        display: block;
        padding: 16px;
    }

    .tower-topbar h2 {
        font-size: 1.55rem;
    }

    .topbar-actions {
        margin-top: 14px;
    }

    .field-grid,
    .metric-grid {
        grid-template-columns: 1fr;
    }

    .detail-row {
        display: block;
    }

    .detail-row strong {
        display: block;
        margin-top: 4px;
        text-align: left;
    }
}