:root {
    color-scheme: dark;
    --bg: #071018;
    --panel: rgba(11, 25, 34, .92);
    --panel-strong: rgba(14, 32, 44, .96);
    --ink: #e8fbff;
    --muted: rgba(232, 251, 255, .68);
    --line: rgba(111, 220, 242, .22);
    --accent: #27d7ff;
    --accent-2: #7cffd0;
    --danger: #ff6b7a;
    --shadow: 0 18px 52px rgba(0, 0, 0, .34);
}

* {
    box-sizing: border-box;
}

html,
body {
    margin: 0;
    min-height: 100%;
    overflow-x: hidden;
}

body {
    background:
        linear-gradient(90deg, rgba(39, 215, 255, .055) 1px, transparent 1px),
        linear-gradient(180deg, rgba(39, 215, 255, .045) 1px, transparent 1px),
        radial-gradient(circle at 22% 0%, rgba(39, 215, 255, .15), transparent 34%),
        radial-gradient(circle at 80% 8%, rgba(124, 255, 208, .09), transparent 32%),
        var(--bg);
    background-size: 38px 38px, 38px 38px, auto, auto, auto;
    color: var(--ink);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    line-height: 1.65;
    -webkit-text-size-adjust: 100%;
}

button,
input,
select {
    font: inherit;
}

button,
a,
select,
input {
    -webkit-tap-highlight-color: transparent;
}

a {
    color: inherit;
}

.noscript {
    background: #341b20;
    color: #ffd8df;
    padding: 12px;
    text-align: center;
}

.site-shell {
    margin: 0 auto;
    max-width: 1180px;
    padding: clamp(18px, 4vw, 46px);
}

.hero {
    max-width: 830px;
    padding: 24px 0 22px;
}

.series-label,
.section-kicker,
.ad-label {
    color: var(--accent);
    font-size: 12px;
    font-weight: 900;
    letter-spacing: .16em;
    margin: 0 0 8px;
}

h1 {
    font-size: clamp(42px, 8vw, 86px);
    letter-spacing: 0;
    line-height: .95;
    margin: 0;
}

h2 {
    font-size: 20px;
    letter-spacing: 0;
    line-height: 1.25;
    margin: 0 0 8px;
}

p {
    margin-top: 0;
}

.subtitle {
    color: var(--accent-2);
    font-size: clamp(18px, 3vw, 24px);
    font-weight: 800;
    margin: 12px 0 0;
}

.lead {
    font-size: clamp(18px, 3vw, 25px);
    font-weight: 800;
    line-height: 1.52;
    margin: 24px 0 0;
}

.note {
    color: var(--muted);
    margin: 12px 0 0;
}

.chart-lab {
    align-items: start;
    display: grid;
    gap: 18px;
    grid-template-columns: minmax(0, .96fr) minmax(340px, 1.04fr);
    margin: 24px 0 30px;
}

.panel,
.ad-row,
.related-tools,
.app-comment-section {
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: 8px;
    box-shadow: var(--shadow);
    padding: clamp(16px, 3vw, 22px);
}

.panel-head p,
.panel p,
.related-tools p {
    color: var(--muted);
    margin-bottom: 0;
}

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

.control-row label,
.axis-row label {
    color: var(--muted);
    display: grid;
    gap: 6px;
    font-size: 13px;
    font-weight: 800;
}

input,
select {
    background: rgba(2, 10, 16, .82);
    border: 1px solid rgba(111, 220, 242, .28);
    border-radius: 7px;
    color: var(--ink);
    min-height: 42px;
    padding: 9px 10px;
    width: 100%;
}

input:focus,
select:focus {
    border-color: var(--accent);
    outline: 0;
    box-shadow: 0 0 0 3px rgba(39, 215, 255, .16);
}

.toggle-row {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin: 12px 0;
}

.toggle-row label {
    align-items: center;
    background: rgba(255, 255, 255, .045);
    border: 1px solid var(--line);
    border-radius: 999px;
    color: var(--muted);
    display: inline-flex;
    font-size: 13px;
    font-weight: 800;
    gap: 8px;
    padding: 8px 11px;
}

.toggle-row input {
    min-height: 0;
    width: auto;
}

.template-row,
.action-row {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin: 14px 0;
}

button {
    appearance: none;
    background: rgba(255, 255, 255, .07);
    border: 1px solid rgba(111, 220, 242, .24);
    border-radius: 7px;
    color: var(--ink);
    cursor: pointer;
    font-weight: 850;
    min-height: 42px;
    padding: 9px 12px;
}

button:hover,
button:focus-visible {
    border-color: var(--accent);
    outline: 0;
}

.primary-button {
    background: linear-gradient(135deg, rgba(39, 215, 255, .32), rgba(124, 255, 208, .18));
}

.save-button {
    background: linear-gradient(135deg, rgba(124, 255, 208, .28), rgba(39, 215, 255, .14));
}

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

.axis-list {
    display: grid;
    gap: 10px;
    margin: 16px 0;
}

.axis-row {
    align-items: end;
    background: rgba(255, 255, 255, .045);
    border: 1px solid rgba(111, 220, 242, .16);
    border-radius: 8px;
    display: grid;
    gap: 10px;
    grid-template-columns: minmax(120px, 1.2fr) minmax(90px, .7fr) auto;
    padding: 10px;
}

.chart-item-row {
    grid-template-columns: minmax(120px, 1.1fr) repeat(auto-fit, minmax(86px, .8fr)) auto;
}

[hidden] {
    display: none !important;
}

.remove-axis {
    border-color: rgba(255, 107, 122, .28);
    color: #ffd8df;
    min-width: 44px;
}

.status-line {
    color: var(--accent-2);
    font-size: 13px;
    font-weight: 800;
    margin: 8px 0 0;
}

.preview-panel {
    position: sticky;
    top: 18px;
}

.canvas-wrap {
    background:
        radial-gradient(circle at center, rgba(39, 215, 255, .12), transparent 58%),
        rgba(1, 7, 12, .84);
    border: 1px solid rgba(111, 220, 242, .16);
    border-radius: 8px;
    margin-top: 16px;
    overflow: hidden;
}

canvas {
    display: block;
    height: auto;
    max-width: 100%;
    width: 100%;
}

.ad-row,
.related-tools,
.app-comment-section,
.info-grid {
    margin: 28px 0;
}

.ad-row {
    min-height: 112px;
}

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

ol {
    color: var(--muted);
    margin-bottom: 0;
    padding-left: 1.2em;
}

.tool-links {
    display: grid;
    gap: 10px;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    margin-top: 14px;
}

.tool-links a {
    background: rgba(255, 255, 255, .055);
    border: 1px solid rgba(111, 220, 242, .18);
    border-radius: 8px;
    display: grid;
    gap: 5px;
    min-height: 96px;
    padding: 13px;
    text-decoration: none;
}

.tool-links a:hover,
.tool-links a:focus-visible {
    border-color: var(--accent);
    outline: 0;
}

.tool-links strong {
    color: var(--ink);
}

.tool-links span {
    color: var(--muted);
    font-size: 13px;
}

.mothership-link {
    background: rgba(255, 255, 255, .045);
    border: 1px solid rgba(111, 220, 242, .16);
    border-radius: 8px;
    color: rgba(232, 251, 255, .66);
    margin: 18px auto 0;
    max-width: 520px;
    padding: 12px 14px;
    text-align: center;
}

.mothership-link span {
    color: rgba(39, 215, 255, .8);
    display: block;
    font-size: 11px;
    font-weight: 900;
    letter-spacing: .14em;
}

.mothership-link a {
    color: var(--ink);
    display: inline-block;
    font-weight: 900;
    margin: 2px 0;
    text-decoration: none;
}

.mothership-link p {
    color: rgba(232, 251, 255, .55);
    font-size: 12px;
    margin: 0;
}

.lab-footer {
    color: rgba(232, 251, 255, .5);
    font-size: 12px;
    padding: 24px 0 6px;
    text-align: center;
}

.app-comments,
.app-comment-form-section {
    background: rgba(8, 19, 27, .94) !important;
    border: 1px solid rgba(111, 220, 242, .2) !important;
    color: var(--ink) !important;
}

.app-comment-form input,
.app-comment-form textarea,
.app-comment-form select {
    background: rgba(2, 10, 16, .9) !important;
    border: 1px solid rgba(111, 220, 242, .28) !important;
    color: var(--ink) !important;
}

.app-comment-form input::placeholder,
.app-comment-form textarea::placeholder {
    color: rgba(232, 251, 255, .44) !important;
}

@media (max-width: 900px) {
    .chart-lab,
    .info-grid {
        grid-template-columns: 1fr;
    }

    .preview-panel {
        position: static;
    }

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

@media (max-width: 540px) {
    .site-shell {
        padding: 16px;
    }

    .control-row,
    .axis-row,
    .tool-links {
        grid-template-columns: 1fr;
    }

    .axis-row {
        align-items: stretch;
    }

    .template-row button,
    .action-row button {
        flex: 1 1 100%;
    }

    h1 {
        font-size: clamp(38px, 14vw, 58px);
    }
}