:root {
    --bg: #0f1115;
    --panel: #171a21;
    --panel-alt: #1e222b;
    --border: #2a2f3a;
    --text: #e8eaed;
    --text-dim: #9aa1ac;
    --accent: #ff4d4d;
    --accent-2: #ffcc00;
    --accent-3: #4dabf7;
    --green: #4caf50;
    --purple: #c77dff;
    --orange: #ff9f43;
    --radius: 10px;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    background: linear-gradient(180deg, #0f1115 0%, #12151b 100%);
    color: var(--text);
    font-family:
        -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial,
        sans-serif;
    line-height: 1.6;
    padding: 40px 20px 80px;
}

.container {
    max-width: 820px;
    margin: 0 auto;
}

.eyebrow {
    color: var(--accent);
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    font-size: 13px;
    margin-bottom: 6px;
}

h1 {
    font-size: 30px;
    margin: 0 0 6px;
    letter-spacing: -0.01em;
}

.subtitle {
    color: var(--text-dim);
    font-size: 15px;
    margin-bottom: 40px;
}

h2 {
    font-size: 21px;
    margin: 48px 0 6px;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    gap: 10px;
}

h2 .num {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 28px;
    border-radius: 8px;
    background: var(--accent);
    color: #fff;
    font-size: 13px;
    font-weight: 700;
    flex-shrink: 0;
}

.section-desc {
    color: var(--text-dim);
    margin: 4px 0 18px;
    font-size: 15px;
}

.card {
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 18px 20px;
    margin-bottom: 16px;
}

.card h4 {
    margin: 0 0 8px;
    font-size: 15.5px;
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--text);
}

.card p.desc {
    color: var(--text-dim);
    font-size: 14.5px;
    margin: 0 0 10px;
}

ul {
    margin: 0;
    padding-left: 0;
    list-style: none;
}

ul.top-level > li {
    margin-bottom: 10px;
    padding-left: 22px;
    position: relative;
    font-size: 14.5px;
    color: var(--text-dim);
}
ul.top-level > li::before {
    content: '•';
    color: var(--accent);
    position: absolute;
    left: 4px;
    font-size: 18px;
    line-height: 1.4;
}

ul.nested {
    margin-top: 8px;
}
ul.nested > li {
    padding-left: 22px;
    position: relative;
    margin-bottom: 8px;
    color: var(--text-dim);
    font-size: 14px;
}
ul.nested > li::before {
    content: '○';
    color: var(--accent-3);
    position: absolute;
    left: 4px;
    font-size: 11px;
    top: 6px;
}

ol.numbered,
ol.lettered,
ol.roman {
    margin: 8px 0 0;
    padding-left: 0;
    list-style: none;
}
ol.numbered > li,
ol.lettered > li,
ol.roman > li {
    padding-left: 26px;
    position: relative;
    margin-bottom: 10px;
    color: var(--text-dim);
    font-size: 14px;
}
ol.numbered > li::before {
    content: counter(step-count) '.';
    color: var(--accent);
    font-weight: 700;
    position: absolute;
    left: 0;
    font-size: 13.5px;
}
ol.lettered > li::before {
    content: counter(letter-count, lower-alpha) '.';
    color: var(--accent-3);
    font-weight: 700;
    position: absolute;
    left: 0;
    font-size: 13px;
}
ol.roman > li::before {
    content: counter(roman-count, lower-roman) '.';
    color: var(--green);
    font-weight: 700;
    position: absolute;
    left: 8px;
    font-size: 12.5px;
}

.label-strong {
    color: var(--text);
    font-weight: 600;
}

.pill {
    display: inline-block;
    font-size: 11px;
    font-weight: 700;
    padding: 2px 9px;
    border-radius: 999px;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    margin-left: 6px;
    vertical-align: middle;
}
.pill-green {
    background: rgba(76, 175, 80, 0.15);
    color: var(--green);
    border: 1px solid rgba(76, 175, 80, 0.35);
}
.pill-warmup {
    background: rgba(255, 204, 0, 0.15);
    color: var(--accent-2);
    border: 1px solid rgba(255, 204, 0, 0.35);
}
.pill-working {
    background: rgba(255, 77, 77, 0.15);
    color: var(--accent);
    border: 1px solid rgba(255, 77, 77, 0.35);
}
.pill-ai {
    background: rgba(199, 125, 255, 0.15);
    color: var(--purple);
    border: 1px solid rgba(199, 125, 255, 0.35);
}
.pill-ironset {
    background: rgba(255, 77, 77, 0.15);
    color: var(--accent);
    border: 1px solid rgba(255, 77, 77, 0.35);
}
.pill-decent {
    background: rgba(77, 171, 247, 0.15);
    color: var(--accent-3);
    border: 1px solid rgba(77, 171, 247, 0.35);
}

.grid-2,
.grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    margin-top: 10px;
}
@media (max-width: 600px) {
    .grid-2,
    .grid {
        grid-template-columns: 1fr;
    }
}

.metric-box {
    background: var(--panel-alt);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 12px 14px;
}
.metric-box .metric-name {
    font-weight: 600;
    font-size: 14px;
    margin-bottom: 4px;
    color: var(--text);
}
.metric-box .metric-desc {
    font-size: 13.5px;
    color: var(--text-dim);
}

.intensity-scale {
    display: flex;
    gap: 4px;
    margin-top: 10px;
    height: 10px;
    border-radius: 6px;
    overflow: hidden;
}
.intensity-scale div {
    flex: 1;
}

.callout {
    display: flex;
    gap: 10px;
    align-items: flex-start;
    background: rgba(77, 171, 247, 0.08);
    border: 1px solid rgba(77, 171, 247, 0.25);
    border-left: 3px solid var(--accent-3);
    border-radius: 8px;
    padding: 12px 14px;
    font-size: 14px;
    color: var(--text-dim);
    margin-top: 14px;
}
.callout.privacy {
    background: rgba(76, 175, 80, 0.08);
    border-color: rgba(76, 175, 80, 0.3);
    border-left-color: var(--green);
}
.callout.warn {
    background: rgba(255, 204, 0, 0.08);
    border-color: rgba(255, 204, 0, 0.3);
    border-left-color: var(--accent-2);
}
.callout .icon {
    font-size: 16px;
    flex-shrink: 0;
}
.callout strong {
    color: var(--text);
}

.week-nav {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 14px;
    background: var(--panel-alt);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 10px 16px;
    margin: 14px 0;
    font-size: 14px;
    color: var(--text-dim);
}
.week-nav .arrow {
    color: var(--accent-3);
    font-weight: 700;
    font-size: 15px;
}
.week-nav .label {
    color: var(--text);
    font-weight: 600;
}

.chip-row {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    margin-top: 12px;
}
.chart-chip {
    background: var(--panel-alt);
    border: 1px solid var(--border);
    border-radius: 999px;
    padding: 5px 12px;
    font-size: 13px;
    color: var(--text-dim);
}
.chart-chip.active {
    border-color: var(--accent-3);
    color: var(--accent-3);
}

.mini-chart {
    display: flex;
    align-items: flex-end;
    gap: 6px;
    height: 70px;
    margin-top: 14px;
    padding: 0 4px;
}
.mini-chart .bar {
    flex: 1;
    background: linear-gradient(
        180deg,
        var(--accent-3),
        rgba(77, 171, 247, 0.25)
    );
    border-radius: 4px 4px 0 0;
}

.device-toggle {
    display: flex;
    align-items: center;
    gap: 10px;
    background: var(--panel-alt);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 10px 14px;
    margin-top: 12px;
    font-size: 14px;
    color: var(--text);
}
.device-toggle .dot {
    width: 9px;
    height: 9px;
    border-radius: 50%;
    background: var(--green);
    flex-shrink: 0;
}
.device-toggle .status {
    color: var(--green);
    font-weight: 700;
    font-size: 12px;
    text-transform: uppercase;
    margin-left: auto;
}

.summary-box {
    background: var(--panel-alt);
    border: 1px dashed var(--border);
    border-radius: var(--radius);
    padding: 18px 20px;
    margin: 20px 0;
}
.summary-box .tag {
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--accent-3);
    margin-bottom: 8px;
    display: block;
}
.summary-box p {
    margin: 0;
    color: var(--text-dim);
    font-size: 14.5px;
}

.screen-placeholder {
    border: 1px dashed var(--border);
    border-radius: 8px;
    padding: 10px 14px;
    font-size: 12.5px;
    color: var(--text-dim);
    text-align: center;
    margin: 14px 0;
    background: var(--panel-alt);
}

.toc {
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 18px 22px;
    margin-bottom: 12px;
}
.toc .tag {
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--text-dim);
    margin-bottom: 10px;
    display: block;
}
.toc a {
    color: var(--text);
    text-decoration: none;
    font-size: 14.5px;
}
.toc a:hover {
    color: var(--accent-3);
}
.toc ol {
    margin: 0;
    padding-left: 0;
    list-style: none;
    counter-reset: toc-count;
}
.toc > ol > li::before {
    content: counter(toc-count) '. ';
    color: var(--accent);
    font-weight: 700;
}
.toc ul.sub-toc {
    margin: 4px 0 4px 18px;
    padding: 0;
}
.toc ul.sub-toc li::before {
    content: '– ';
    color: var(--text-dim);
}
.toc ul.sub-toc a {
    color: var(--text-dim);
    font-size: 13.5px;
}

.divider {
    text-align: center;
    color: var(--border);
    font-size: 13px;
    margin: 50px 0 -20px;
    letter-spacing: 0.4em;
}

/* small helpers used across pages */
.pill-ironset {
    background: rgba(255, 77, 77, 0.15);
    color: var(--accent);
    border: 1px solid rgba(255, 77, 77, 0.35);
}