.tc-breadcrumb { font-size: .85rem; opacity: .75; margin-bottom: 14px; }
        .tc-breadcrumb a { color: inherit; text-decoration: underline; text-underline-offset: 3px; }
        .tc-breadcrumb span[aria-hidden] { margin: 0 6px; }
        .tc-hero-actions { display: flex; flex-wrap: wrap; gap: 12px; justify-content: center; margin-top: 28px; }
        .tc-btn-outline { display: inline-flex; align-items: center; gap: 8px; padding: 12px 22px; border-radius: 999px; border: 1px solid rgba(128,128,128,.45); color: inherit; font-weight: 600; text-decoration: none; }
        .tc-btn-outline:hover { background: rgba(128,128,128,.1); }

        .tc-section { padding: 88px 0; }
        .tc-first { padding-top: 72px; }
        .tc-split { display: grid; grid-template-columns: 1fr 1.2fr; gap: 56px; align-items: start; }
        .tc-split.tc-reverse { grid-template-columns: 1.2fr 1fr; }
        .tc-split.tc-reverse .tc-copy { order: 2; }
        .tc-copy p { line-height: 1.7; opacity: .85; }
        .tc-copy .section-header { text-align: left; margin-bottom: 18px; }
        .tc-lead { text-align: center; max-width: 720px; margin: 0 auto 36px; line-height: 1.7; opacity: .85; }
        .tc-note { font-size: .78rem; opacity: .6; margin-top: 10px; }
        .tc-note-center { text-align: center; max-width: 640px; margin-left: auto; margin-right: auto; }
        .tc-related { text-align: center; margin-top: 36px; font-size: .95rem; line-height: 1.7; }
        .tc-related a, .features-card a { color: inherit; font-weight: 600; text-underline-offset: 3px; }
        .tc-sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
        .tc-numlist { list-style: none; margin: 22px 0 0; padding: 0; display: grid; gap: 14px; }
        .tc-numlist li { display: flex; gap: 12px; align-items: flex-start; line-height: 1.5; }
        .tc-pin { flex: none; width: 24px; height: 24px; border-radius: 50%; background: #2563eb; color: #fff; font-size: .78rem; font-weight: 700; display: inline-grid; place-items: center; }

        /* Window chrome */
        .tc-window { position: relative; border: 1px solid rgba(128,128,128,.28); border-radius: 18px; overflow: hidden; background: rgba(128,128,128,.06); box-shadow: 0 24px 56px -28px rgba(0,0,0,.4); min-width: 0; }
        .tc-window [hidden] { display: none !important; }
        .tc-window-bar { display: flex; align-items: center; gap: 7px; padding: 12px 16px; border-bottom: 1px solid rgba(128,128,128,.22); font-size: .82rem; flex-wrap: wrap; }
        .tc-dot { width: 10px; height: 10px; border-radius: 50%; background: rgba(128,128,128,.4); }
        .tc-window-title { margin-left: 8px; font-weight: 700; }
        .tc-window-sub { opacity: .6; font-style: italic; }

        /* Demo: toolbar */
        .tc-tools { display: flex; flex-wrap: wrap; gap: 12px 16px; align-items: center; padding: 14px 16px; border-bottom: 1px solid rgba(128,128,128,.18); }
        .tc-search { position: relative; flex: 1 1 260px; min-width: 0; }
        .tc-search span { position: absolute; left: 11px; top: 50%; transform: translateY(-50%); width: 16px; height: 16px; opacity: .55; pointer-events: none; }
        .tc-search svg { width: 16px; height: 16px; }
        .tc-search input { box-sizing: border-box; width: 100%; font: inherit; font-size: .86rem; color: inherit; background: rgba(128,128,128,.06); border: 1px solid rgba(128,128,128,.35); border-radius: 8px; padding: 9px 12px 9px 34px; min-width: 0; }
        .tc-search input:focus, .tc-scroll:focus-visible, .tc-chip:focus-visible, .tc-name:focus-visible { outline: 2px solid #2563eb; outline-offset: 2px; }
        .tc-chips { display: flex; flex-wrap: wrap; gap: 8px; }
        .tc-chip { font: inherit; font-size: .78rem; font-weight: 600; color: inherit; background: transparent; border: 1px solid rgba(128,128,128,.4); border-radius: 999px; padding: 6px 12px; cursor: pointer; display: inline-flex; gap: 7px; align-items: center; }
        .tc-chip span { font-weight: 700; opacity: .7; }
        .tc-chip:hover { background: rgba(128,128,128,.12); }
        .tc-chip[aria-pressed="true"] { background: #1e3a5f; border-color: #1e3a5f; color: #fff; }
        .tc-chip[aria-pressed="true"] span { opacity: .9; }

        /* Demo: table */
        .tc-scroll { overflow-x: auto; }
        .tc-table { min-width: 1060px; }
        .tc-head { overflow: hidden; scrollbar-gutter: stable; border-bottom: 1px solid rgba(128,128,128,.22); }
        .tc-body { max-height: 392px; overflow-y: auto; scrollbar-gutter: stable; }
        .tc-row { display: grid; grid-template-columns: 1.1fr 1.4fr 1fr 2.4fr; gap: 12px; align-items: center; padding: 0 16px; min-height: 56px; border-bottom: 1px solid rgba(128,128,128,.14); }
        .tc-row-head { min-height: 40px; font-size: .75rem; font-weight: 700; opacity: .75; }
        .tc-body .tc-row:hover { background: rgba(128,128,128,.07); }
        .tc-body .tc-row.is-active { background: rgba(37,99,235,.09); box-shadow: inset 3px 0 0 #2563eb; }
        .tc-cell { min-width: 0; padding: 8px 0; }
        .tc-c-learner { display: flex; align-items: center; gap: 10px; }
        .tc-av { flex: none; width: 30px; height: 30px; border-radius: 50%; display: inline-grid; place-items: center; font-size: .68rem; font-weight: 700; border: 1px solid rgba(37,99,235,.4); background: rgba(37,99,235,.12); color: #2563eb; }
        .tc-av-1 { border-color: rgba(147,51,234,.4); background: rgba(147,51,234,.12); color: #9333ea; }
        .tc-av-2 { border-color: rgba(217,119,6,.45); background: rgba(217,119,6,.12); color: #d97706; }
        .tc-av-3 { border-color: rgba(22,163,74,.45); background: rgba(22,163,74,.12); color: #16a34a; }
        .tc-av-4 { border-color: rgba(220,38,38,.4); background: rgba(220,38,38,.1); color: #dc2626; }
        .tc-name { font: inherit; font-size: .8rem; font-weight: 600; color: inherit; background: none; border: 0; padding: 2px 0; cursor: pointer; text-align: left; text-decoration: underline; text-decoration-color: rgba(128,128,128,.5); text-underline-offset: 3px; }
        .tc-name:hover { text-decoration-color: currentColor; }
        .tc-name-plain { font-size: .8rem; font-weight: 600; }
        .tc-prog { font-size: .78rem; font-weight: 500; line-height: 1.35; }
        .tc-dates { font-size: .7rem; opacity: .6; margin-top: 2px; }
        .tc-chip-nd { display: inline-block; font-size: .7rem; font-weight: 600; color: #2563eb; background: rgba(37,99,235,.12); border-radius: 6px; padding: 3px 8px; white-space: nowrap; }
        .tc-c-health { display: flex; align-items: center; gap: 14px; flex-wrap: nowrap; }
        .tc-score { display: grid; justify-items: start; gap: 3px; min-width: 88px; }
        .tc-score-num { font-size: 1.1rem; font-weight: 700; line-height: 1; }
        .tc-score-num small, .tc-ring-num small { font-size: .62rem; font-weight: 500; opacity: .65; margin-left: 2px; }
        .tc-sigs { display: flex; gap: 8px; }
        .tc-sig { position: relative; display: grid; justify-items: center; gap: 3px; width: 56px; }
        .tc-sig-l { font-size: .6rem; opacity: .8; text-align: center; line-height: 1.15; }
        .tc-empty { padding: 28px 16px; text-align: center; opacity: .7; font-size: .88rem; margin: 0; }
        .tc-foot { padding: 12px 16px; font-size: .78rem; opacity: .75; border-top: 1px solid rgba(128,128,128,.18); }

        /* Health colours, badges and sparklines */
        .tc-s-good { --tc-s: #16a34a; } .tc-s-watch { --tc-s: #d97706; } .tc-s-bad { --tc-s: #dc2626; } .tc-s-none { --tc-s: rgba(128,128,128,.85); }
        .tc-spark, .tc-vi-state { color: var(--tc-s); }
        .tc-spark { width: 44px; height: 14px; display: block; overflow: visible; }
        .tc-spark path { fill: none; stroke: currentColor; stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; }
        .tc-s-none .tc-spark path { stroke-dasharray: 3 2.4; }
        .tc-b-risk { --tc-c: #b91c1c; } .tc-b-need { --tc-c: #dc2626; } .tc-b-steady { --tc-c: #d97706; } .tc-b-none { --tc-c: rgba(128,128,128,.8); }
        .tc-badge { display: inline-block; font-size: .68rem; font-weight: 700; border-radius: 5px; padding: 2px 7px; line-height: 1.3; }
        .tc-badge-risk { background: #b91c1c; color: #fff; }
        .tc-badge-need { background: rgba(220,38,38,.12); color: #dc2626; }
        .tc-badge-steady { background: rgba(217,119,6,.14); color: #d97706; }
        .tc-badge-none { background: rgba(128,128,128,.16); color: inherit; opacity: .85; }

        /* Demo: vitals panel */
        .tc-vit-wrap { border-top: 1px solid rgba(128,128,128,.22); padding: 18px 20px 22px; background: rgba(128,128,128,.04); }
        .tc-vit-title { margin: 0 0 14px; font-size: .95rem; font-weight: 700; display: flex; flex-wrap: wrap; gap: 4px 12px; align-items: baseline; }
        .tc-vit-title span { font-size: .75rem; font-weight: 400; opacity: .65; }
        .tc-vit-head { display: flex; align-items: center; gap: 12px; margin-bottom: 14px; }
        .tc-vit-head .tc-av { width: 38px; height: 38px; font-size: .8rem; }
        .tc-vit-name { font-weight: 700; }
        .tc-vit-prog { font-size: .76rem; opacity: .65; }
        .tc-vit-body { display: flex; gap: 28px; align-items: center; flex-wrap: wrap; }
        .tc-vit-score { display: grid; justify-items: center; gap: 8px; }
        .tc-ring { position: relative; width: 96px; height: 96px; }
        .tc-ring-svg { width: 100%; height: 100%; display: block; }
        .tc-ring-track { fill: none; stroke: rgba(128,128,128,.25); stroke-width: 8; }
        .tc-ring-bar { fill: none; stroke: var(--tc-c); stroke-width: 8; stroke-linecap: round; }
        .tc-ring-num { position: absolute; inset: 0; display: grid; place-content: center; text-align: center; font-size: 1.6rem; font-weight: 800; line-height: 1; }
        .tc-ring-num small { display: block; margin: 3px 0 0; }
        .tc-vit-list { list-style: none; margin: 0; padding: 0; flex: 1 1 360px; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px; }
        .tc-vi { display: grid; gap: 8px; justify-items: start; padding: 12px; border: 1px solid rgba(128,128,128,.25); border-radius: 12px; background: rgba(128,128,128,.05); }
        .tc-vi-name { font-size: .78rem; font-weight: 700; }
        .tc-vi .tc-spark { width: 88px; height: 28px; }
        .tc-vi-state { font-size: .74rem; font-weight: 700; }
        .tc-vit-note { margin: 16px 0 0; font-size: .86rem; line-height: 1.55; opacity: .85; }

        /* Health section */
        .tc-four { margin-top: 8px; }
        @media (min-width: 1100px) { .tc-four.features-grid { grid-template-columns: repeat(4, 1fr); } }
        @media (min-width: 769px) and (max-width: 1099px) { .tc-four.features-grid { grid-template-columns: repeat(2, 1fr); } }
        .tc-legend { list-style: none; margin: 32px 0 0; padding: 0; display: flex; flex-wrap: wrap; gap: 10px 28px; justify-content: center; font-size: .85rem; font-weight: 600; }
        .tc-legend li { display: inline-flex; align-items: center; gap: 10px; }
        .tc-legend li span { color: inherit; }
        .tc-bands { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-top: 28px; }
        .tc-band { border: 1px solid rgba(128,128,128,.28); border-top: 4px solid var(--tc-c); border-radius: 14px; padding: 18px; background: rgba(128,128,128,.05); display: grid; gap: 10px; justify-items: start; align-content: start; }
        .tc-band-num { font-size: 1.9rem; font-weight: 800; line-height: 1; }
        .tc-band-num small { font-size: 1.1rem; font-weight: 600; opacity: .6; margin-left: 6px; }
        .tc-band p { margin: 0; font-size: .86rem; line-height: 1.55; opacity: .8; }

        /* Row anatomy */
        .tc-anat { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
        .tc-anat-box { position: relative; border: 1px solid rgba(128,128,128,.28); border-radius: 14px; padding: 16px; background: rgba(128,128,128,.06); display: grid; gap: 10px; align-content: start; min-width: 0; }
        .tc-anat-box:nth-child(4) { background: rgba(37,99,235,.07); border-color: rgba(37,99,235,.45); }
        .tc-anat-box .tc-pin { position: absolute; top: 12px; right: 12px; }
        .tc-anat-label { font-size: .7rem; font-weight: 700; text-transform: uppercase; letter-spacing: .06em; opacity: .6; }
        .tc-anat-box .tc-cell { padding: 0; }
        .tc-anat-box .tc-sigs { gap: 4px; }

        .tc-tick { flex: none; width: 22px; height: 22px; border-radius: 50%; display: grid; place-items: center; background: rgba(22,163,74,.15); color: #16a34a; }
        .tc-steps { margin-top: 44px; }
        .tc-step-card { flex-direction: column; gap: 16px; }
        .tc-step-card .features-card-icon { color: #fff; font-weight: 800; font-size: 1.05rem; line-height: 1; }
        @media (min-width: 769px) { .tc-steps.features-grid { grid-template-columns: repeat(3, 1fr); } }

        @media (max-width: 900px) {
            .tc-section { padding: 64px 0; }
            .tc-split, .tc-split.tc-reverse { grid-template-columns: 1fr; gap: 32px; }
            .tc-split.tc-reverse .tc-copy { order: 0; }
            .tc-bands { grid-template-columns: repeat(2, 1fr); }
            .tc-vit-list { grid-template-columns: repeat(2, minmax(0, 1fr)); }
        }
        @media (max-width: 640px) {
            .tc-bands { grid-template-columns: 1fr; }
            .tc-anat { grid-template-columns: 1fr; }
            .tc-vit-wrap { padding: 16px 14px 18px; }
            .tc-vit-body { gap: 18px; }
        }