.ekg-lab-page {
--ekg: #0f9d58;
--ekg-deep: #067647;
--ekg-soft: rgba(15, 157, 88, 0.12);
--ekg-line: rgba(15, 157, 88, 0.28);
--ekg-glass: linear-gradient(118deg, rgba(255, 255, 255, 0.8) 0%, rgba(255, 255, 255, 0.62) 48%, rgba(255, 255, 255, 0.48) 100%);
--ekg-glass-strong: linear-gradient(118deg, rgba(255, 255, 255, 0.92) 0%, rgba(255, 255, 255, 0.78) 60%, rgba(255, 255, 255, 0.66) 100%);
--ekg-rim: inset 0 1px 0 rgba(255, 255, 255, 0.9), inset 0 -1px 0 rgba(255, 255, 255, 0.35), inset 1px 0 0 rgba(255, 255, 255, 0.5);
--ekg-shadow: 0 24px 60px rgba(15, 23, 42, 0.10), 0 2px 6px rgba(15, 23, 42, 0.04);
position: relative;
overflow-x: clip;
gap: 18px;
}
.ekg-lab-page > * { position: relative; z-index: 1; }
.ekg-lab-page [hidden] { display: none !important; }
.ekg-lab-page :where(button) { font: inherit; border: 0; background: none; color: inherit; padding: 0; margin: 0; cursor: pointer; border-radius: 0; box-shadow: none; }
.ekg-lab-page :where(select) { font: inherit; }
.ekg-lab-page .button { display: inline-flex; align-items: center; gap: 8px; padding: 10px 16px; border-radius: 999px; font-size: 13px; font-weight: 700; color: var(--text); background: var(--ekg-glass-strong); border: 1px solid rgba(255, 255, 255, 0.6); box-shadow: var(--ekg-rim), 0 8px 20px rgba(15, 23, 42, 0.08); transition: transform 0.2s ease; }
@media (hover: hover) and (pointer: fine) {
.ekg-lab-page .button:hover { transform: translateY(-1px); }
}
.ekg-stage { display: grid; gap: 14px; }
.ekg-glass { position: relative; background: var(--ekg-glass); border: 1px solid rgba(255, 255, 255, 0.55); box-shadow: var(--ekg-rim), var(--ekg-shadow); backdrop-filter: blur(18px) saturate(1.7); -webkit-backdrop-filter: blur(18px) saturate(1.7); }
.ekg-glass::after { content: ""; position: absolute; left: 6%; right: 6%; top: 0; height: 1px; pointer-events: none; background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.95) 30%, rgba(255, 255, 255, 0.95) 70%, transparent); }
.ekg-hero { border-radius: var(--radius-xl); padding: 24px 28px 20px; display: grid; gap: 16px; overflow: hidden; }
.ekg-hero::before {
content: ""; position: absolute; inset: 0; z-index: 0; pointer-events: none;
background: linear-gradient(90deg, rgba(15, 157, 88, 0) 40%, rgba(15, 157, 88, 0.5) 68%, rgba(10, 132, 255, 0.45) 100%);
-webkit-mask: url("../../../ekg-lab/ekg-banner.svg") center / cover no-repeat;
mask: url("../../../ekg-lab/ekg-banner.svg") center / cover no-repeat;
}
.ekg-hero > * { position: relative; z-index: 1; }
.ekg-hero-top { display: flex; justify-content: space-between; gap: 18px; align-items: flex-start; }
.ekg-brand { display: inline-flex; align-items: center; gap: 10px; }
.ekg-brand img { height: 30px; width: auto; display: block; }
.ekg-brand span { font-size: 12px; font-weight: 800; letter-spacing: 0.02em; text-transform: uppercase; color: var(--ekg-deep); padding-left: 10px; border-left: 1px solid rgba(15, 23, 42, 0.18); }
.ekg-hero h1 { margin: 8px 0 6px; font-size: 36px; letter-spacing: -0.05em; line-height: 1.02; color: var(--text); }
.ekg-hero-copy { margin: 0; max-width: 58ch; font-size: 14px; line-height: 1.55; color: var(--text); }
.ekg-counts { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 14px; }
.ekg-counts span { display: inline-flex; align-items: center; gap: 6px; padding: 6px 11px; border-radius: 999px; font-size: 12px; font-weight: 800; color: var(--text); background: rgba(255, 255, 255, 0.8); border: 1px solid rgba(255, 255, 255, 0.7); box-shadow: 0 4px 12px rgba(15, 23, 42, 0.05); }
.ekg-counts span b { color: var(--ekg-deep); }
.ekg-hero-actions { display: flex; flex-direction: column; align-items: flex-end; gap: 8px; flex: 0 0 auto; }
.ekg-live { display: inline-flex; align-items: center; gap: 7px; padding: 5px 11px; border-radius: 999px; font-size: 11px; font-weight: 800; color: var(--ekg-deep); background: var(--ekg-soft); }
.ekg-live i { width: 8px; height: 8px; border-radius: 50%; background: var(--ekg); animation: ekg-pulse 1.4s ease-out infinite; }
@keyframes ekg-pulse { 0% { box-shadow: 0 0 0 0 rgba(15, 157, 88, 0.5); } 100% { box-shadow: 0 0 0 9px rgba(15, 157, 88, 0); } }
.ekg-controls { display: flex; flex-wrap: wrap; align-items: center; gap: 12px 16px; }
.ekg-segment { display: inline-flex; gap: 3px; padding: 4px; border-radius: 999px; background: rgba(255, 255, 255, 0.6); border: 1px solid rgba(255, 255, 255, 0.7); box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.9), 0 2px 8px rgba(15, 23, 42, 0.04); }
.ekg-segment button { display: inline-flex; align-items: center; gap: 7px; padding: 8px 16px; border-radius: 999px; font-size: 13px; font-weight: 700; color: var(--muted-strong); white-space: nowrap; transition: background 0.18s ease, color 0.18s ease, box-shadow 0.18s ease; }
@media (hover: hover) and (pointer: fine) {
.ekg-segment button:hover { color: var(--text); background: rgba(15, 23, 42, 0.04); }
}
.ekg-segment button[aria-pressed="true"] { background: #fff; color: var(--text); box-shadow: 0 6px 16px rgba(15, 23, 42, 0.10); }
.ekg-segment.ekg-modes button[aria-pressed="true"] { background: linear-gradient(180deg, var(--ekg), var(--ekg-deep)); color: #fff; box-shadow: 0 8px 18px rgba(15, 157, 88, 0.3), inset 0 1px 0 rgba(255, 255, 255, 0.3); }
.ekg-mode-hint { font-size: 12px; color: var(--muted-strong); font-weight: 600; }
.ekg-rail { display: flex; flex-wrap: wrap; gap: 6px; padding: 7px 9px; border-radius: 999px; }
.ekg-rail button { display: inline-flex; align-items: center; gap: 7px; padding: 8px 13px; border-radius: 999px; font-size: 13px; font-weight: 700; color: var(--text); transition: background 0.18s ease, color 0.18s ease; }
@media (hover: hover) and (pointer: fine) {
.ekg-rail button:hover { background: rgba(255, 255, 255, 0.7); }
}
.ekg-rail button[aria-pressed="true"] { background: linear-gradient(180deg, var(--ekg), var(--ekg-deep)); color: #fff; box-shadow: 0 8px 18px rgba(15, 157, 88, 0.28), inset 0 1px 0 rgba(255, 255, 255, 0.3); }
.ekg-rail button small { font-size: 11px; font-weight: 800; padding: 1px 7px; border-radius: 999px; background: rgba(15, 23, 42, 0.06); color: var(--muted-strong); }
.ekg-rail button[aria-pressed="true"] small { background: rgba(255, 255, 255, 0.22); color: #fff; }
.ekg-panel { border-radius: var(--radius-lg); overflow: hidden; }
.ekg-explore { display: grid; grid-template-columns: 264px minmax(0, 1fr); }
.ekg-list-pane { border-right: 1px solid rgba(255, 255, 255, 0.6); padding: 16px 14px; display: grid; gap: 10px; align-content: start; background: rgba(255, 255, 255, 0.28); }
.ekg-search { width: 100%; padding: 10px 13px; border-radius: 999px; border: 1px solid rgba(255, 255, 255, 0.8); background: rgba(255, 255, 255, 0.7); font: inherit; font-size: 13px; color: var(--text); }
.ekg-list { display: grid; gap: 3px; max-height: 720px; overflow: auto; padding-right: 4px; }
.ekg-list-group { margin: 8px 6px 2px; font-size: 11px; font-weight: 800; text-transform: uppercase; letter-spacing: 0.02em; color: var(--ekg-deep); }
.ekg-row { display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 5px 10px; width: 100%; text-align: left; padding: 9px 12px; border-radius: var(--radius-sm); border: 1px solid transparent; }
@media (hover: hover) and (pointer: fine) {
.ekg-row:hover { background: rgba(255, 255, 255, 0.75); }
}
.ekg-row[aria-pressed="true"] { background: #fff; border-color: var(--ekg-line); box-shadow: 0 8px 20px rgba(15, 157, 88, 0.12); }
.ekg-row strong { font-size: 14px; font-weight: 750; color: var(--text); letter-spacing: -0.01em; }
.ekg-row-meta { grid-column: 1 / -1; display: flex; flex-wrap: wrap; gap: 5px; font-size: 11px; color: var(--muted-strong); font-weight: 600; }
.ekg-row-meta span { padding: 1px 7px; border-radius: 999px; background: rgba(15, 23, 42, 0.05); }
.ekg-dot { width: 8px; height: 8px; border-radius: 50%; display: inline-block; }
.ekg-dot--beginner { background: #22c55e; }
.ekg-dot--intermediate { background: #f59e0b; }
.ekg-dot--advanced { background: #ef4444; }
.ekg-stage-body { padding: 18px 20px 20px; display: grid; gap: 14px; align-content: start; min-width: 0; }
.ekg-monitor { border-radius: var(--radius-md); background: linear-gradient(180deg, rgba(255, 255, 255, 0.97), rgba(255, 255, 255, 0.88)); border: 1px solid rgba(255, 255, 255, 0.9); box-shadow: 0 1px 0 rgba(255, 255, 255, 1) inset, 0 22px 50px rgba(15, 23, 42, 0.12); overflow: hidden; }
.ekg-monitor-head { display: flex; justify-content: space-between; align-items: center; gap: 12px; flex-wrap: wrap; padding: 14px 16px 10px; }
.ekg-monitor-head h2 { margin: 0; font-size: 24px; letter-spacing: -0.04em; line-height: 1.1; display: flex; align-items: center; gap: 10px; color: var(--text); }
.ekg-monitor-head h2 .ekg-dot { width: 9px; height: 9px; }
.ekg-pills { display: inline-flex; flex-wrap: wrap; gap: 5px; margin-top: 6px; }
.ekg-pill { padding: 3px 9px; border-radius: 999px; font-size: 11px; font-weight: 800; background: rgba(15, 23, 42, 0.06); color: var(--muted-strong); text-transform: capitalize; }
.ekg-pill--fam { background: var(--ekg-soft); color: var(--ekg-deep); }
.ekg-view { display: inline-flex; gap: 2px; padding: 3px; border-radius: 999px; background: rgba(15, 23, 42, 0.05); }
.ekg-view button { display: inline-flex; align-items: center; gap: 6px; padding: 6px 12px; border-radius: 999px; font-size: 12px; font-weight: 800; color: var(--muted-strong); }
.ekg-view button svg { width: 14px; height: 12px; }
.ekg-view button[aria-pressed="true"] { background: #fff; color: var(--text); box-shadow: 0 4px 12px rgba(15, 23, 42, 0.10); }
.ekg-field { display: inline-flex; align-items: center; gap: 8px; }
.ekg-field > small, .ekg-variant-row > small { font-size: 11px; font-weight: 800; text-transform: uppercase; letter-spacing: 0.02em; color: var(--muted-strong); }
.ekg-variant-row { display: flex; align-items: center; flex-wrap: wrap; gap: 8px; padding: 0 16px 12px; }
.ekg-variants { display: inline-flex; flex-wrap: wrap; gap: 6px; }
.ekg-variants button { padding: 6px 12px; border-radius: 999px; font-size: 12px; font-weight: 700; border: 1px solid var(--line); background: #fff; color: var(--text); }
.ekg-variants button[aria-pressed="true"] { background: var(--text); color: #fff; border-color: var(--text); }
.ekg-variant-desc { margin: 0; flex: 1 1 100%; font-size: 13px; color: var(--text); line-height: 1.5; padding-left: 2px; }
.ekg-screen { padding: 0 16px; }
.ekg-screen .arc-ecg__frame { border-radius: 14px; border-color: var(--ekg-line); box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.6), 0 10px 26px rgba(15, 23, 42, 0.08); }
.ekg-screen .arc-ecg__meta { display: none; }
.ekg-screen .arc-ecg-multi__long-strip, .ekg-screen .arc-ecg-lead { border-radius: 12px; }
.ekg-toolbar { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 8px 12px; padding: 12px 16px 14px; }
.ekg-toolbar-left, .ekg-toolbar-right { display: inline-flex; flex-wrap: wrap; align-items: center; gap: 8px; }
.ekg-tool { display: inline-flex; align-items: center; gap: 7px; min-height: 34px; padding: 0 13px; border-radius: 999px; font-size: 12px; font-weight: 800; color: var(--text); background: #fff; border: 1px solid var(--line); box-shadow: 0 2px 6px rgba(15, 23, 42, 0.04); cursor: pointer; }
@media (hover: hover) and (pointer: fine) {
.ekg-tool:hover { border-color: var(--ekg-line); }
}
.ekg-tool[aria-pressed="true"] { background: var(--ekg-soft); border-color: var(--ekg-line); color: var(--ekg-deep); }
.ekg-tool svg { width: 13px; height: 13px; flex: 0 0 13px; }
.ekg-tool select { border: 0; background: transparent; font-size: 12px; font-weight: 800; color: var(--text); padding: 0; cursor: pointer; }
.ekg-tool .ekg-badge { min-width: 18px; padding: 1px 6px; border-radius: 999px; background: var(--ekg); color: #fff; font-size: 11px; text-align: center; }
.ekg-pop { position: relative; }
.ekg-pop > summary { list-style: none; }
.ekg-pop > summary::-webkit-details-marker { display: none; }
.ekg-pop[open] > summary .ekg-tool { border-color: var(--ekg-line); }
.ekg-pop-body { position: absolute; z-index: 5; left: 0; top: calc(100% + 8px); min-width: 230px; padding: 12px 14px; border-radius: var(--radius-sm); background: #fff; border: 1px solid var(--line); box-shadow: 0 18px 40px rgba(15, 23, 42, 0.14); display: grid; gap: 10px; }
.ekg-pop-body label { display: grid; grid-template-columns: 70px 1fr; align-items: center; gap: 10px; font-size: 12px; font-weight: 800; color: var(--muted-strong); }
.ekg-pop-body select { padding: 6px 10px; border-radius: 10px; border: 1px solid var(--line); background: #fff; font-size: 13px; font-weight: 700; color: var(--text); }
.ekg-tray { display: grid; gap: 8px; margin: 0 16px 14px; padding: 12px 14px; border-radius: var(--radius-sm); background: rgba(248, 250, 252, 0.95); border: 1px solid var(--line); }
.ekg-chip-row { display: flex; flex-wrap: wrap; gap: 6px; align-items: center; }
.ekg-chip-row small { font-size: 11px; font-weight: 800; color: var(--muted-strong); margin-right: 4px; text-transform: uppercase; }
.ekg-chip { display: inline-flex; align-items: center; gap: 6px; padding: 5px 11px; border-radius: 999px; font-size: 12px; font-weight: 700; background: #fff; border: 1px solid var(--line); color: var(--text); }
.ekg-chip i { width: 9px; height: 9px; border-radius: 50%; background: var(--chip, #999); }
.ekg-chip[aria-pressed="true"] { border-color: var(--chip); box-shadow: inset 0 0 0 1px var(--chip); background: color-mix(in srgb, var(--chip) 10%, #fff); }
.ekg-tray-foot { display: flex; justify-content: space-between; align-items: center; font-size: 12px; color: var(--muted-strong); font-weight: 600; }
.ekg-tray-foot button { font-weight: 800; color: var(--accent); }
.ekg-teach { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 10px; }
.ekg-card { padding: 14px 15px; border-radius: var(--radius-md); background: rgba(255, 255, 255, 0.8); border: 1px solid rgba(255, 255, 255, 0.9); box-shadow: 0 8px 20px rgba(15, 23, 42, 0.05); }
.ekg-card h3 { margin: 0 0 8px; font-size: 14px; letter-spacing: -0.01em; display: flex; align-items: center; gap: 7px; color: var(--text); }
.ekg-card h3 i { width: 8px; height: 8px; border-radius: 50%; }
.ekg-card ul { margin: 0; padding-left: 16px; display: grid; gap: 5px; font-size: 13px; line-height: 1.45; color: var(--text); }
.ekg-card--features h3 i { background: var(--ekg); }
.ekg-card--pearls h3 i { background: var(--accent); }
.ekg-card--traps h3 i { background: #ef4444; }
.ekg-links { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; font-size: 12px; font-weight: 800; color: var(--muted-strong); }
.ekg-links a { padding: 6px 12px; border-radius: 999px; background: var(--accent-soft); color: var(--accent); text-decoration: none; font-weight: 700; font-size: 12px; }
.ekg-compare { padding: 18px 20px 20px; display: grid; gap: 14px; }
.ekg-presets { display: flex; flex-wrap: wrap; gap: 7px; align-items: center; }
.ekg-presets small { font-size: 11px; font-weight: 800; text-transform: uppercase; color: var(--muted-strong); margin-right: 4px; }
.ekg-presets button { padding: 7px 13px; border-radius: 999px; font-size: 12px; font-weight: 700; background: rgba(255, 255, 255, 0.8); border: 1px solid rgba(255, 255, 255, 0.9); color: var(--text); }
.ekg-presets button[aria-pressed="true"] { background: var(--text); color: #fff; border-color: var(--text); }
.ekg-compare-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
.ekg-compare-card { display: grid; gap: 10px; padding: 14px; border-radius: var(--radius-md); background: linear-gradient(180deg, rgba(255, 255, 255, 0.97), rgba(255, 255, 255, 0.88)); border: 1px solid rgba(255, 255, 255, 0.9); box-shadow: 0 22px 50px rgba(15, 23, 42, 0.10); min-width: 0; }
.ekg-compare-card select { font: inherit; font-size: 15px; font-weight: 800; padding: 8px 12px; border-radius: 12px; border: 1px solid var(--line); background: #fff; color: var(--text); width: 100%; letter-spacing: -0.02em; }
.ekg-compare-card .arc-ecg__meta { display: none; }
.ekg-compare-card .arc-ecg__frame { border-radius: 12px; border-color: var(--ekg-line); }
.ekg-compare-card ul { margin: 0; padding-left: 16px; display: grid; gap: 4px; font-size: 13px; line-height: 1.45; color: var(--text); }
.ekg-recall { padding: 18px 20px 20px; display: grid; grid-template-columns: minmax(0, 1fr) 260px; gap: 16px; }
.ekg-recall-main { display: grid; gap: 12px; min-width: 0; }
.ekg-recall-q { margin: 0; font-size: 20px; font-weight: 800; letter-spacing: -0.03em; color: var(--text); }
.ekg-recall-main .arc-ecg__frame { border-radius: 14px; border-color: var(--ekg-line); box-shadow: 0 22px 50px rgba(15, 23, 42, 0.10); }
.ekg-recall-main .arc-ecg__title { font-size: 15px; }
.ekg-recall-head { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 8px 12px; }
.ekg-recall-tools { display: inline-flex; flex-wrap: wrap; align-items: center; gap: 8px; }
.ekg-recall-main .arc-ecg-multi__long-strip, .ekg-recall-main .arc-ecg-lead { border-radius: 12px; }
.ekg-lead-tag { display: inline-flex; align-items: center; padding: 2px 9px; border-radius: 999px; background: var(--ekg-soft); color: var(--ekg-deep); font-size: 11.5px; font-weight: 900; letter-spacing: 0.02em; vertical-align: middle; }
.ekg-screen .ekg-lead-tag { display: none; }
.ekg-lab-page .arc-ecg__button { min-height: 34px; padding: 0 14px; border-radius: 999px; border: 1px solid var(--line); background: #fff; font-size: 12px; font-weight: 800; color: var(--text); }
.ekg-answers { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; }
.ekg-answers button { text-align: left; padding: 12px 14px; border-radius: var(--radius-sm); border: 1px solid rgba(255, 255, 255, 0.9); background: rgba(255, 255, 255, 0.85); font-size: 14px; font-weight: 700; color: var(--text); }
@media (hover: hover) and (pointer: fine) {
.ekg-answers button:hover { border-color: var(--ekg-line); }
}
.ekg-answers button.is-correct { background: rgba(52, 199, 89, 0.16); border-color: rgba(52, 199, 89, 0.5); }
.ekg-answers button.is-wrong { background: rgba(255, 69, 58, 0.10); border-color: rgba(255, 69, 58, 0.45); }
.ekg-recall-side { display: grid; gap: 10px; align-content: start; }
.ekg-score { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.ekg-score div { padding: 12px 14px; border-radius: var(--radius-sm); background: rgba(255, 255, 255, 0.85); border: 1px solid rgba(255, 255, 255, 0.9); }
.ekg-score b { display: block; font-size: 24px; letter-spacing: -0.04em; color: var(--ekg-deep); }
.ekg-score small { font-size: 11px; font-weight: 800; color: var(--muted-strong); text-transform: uppercase; }
.ekg-primary { display: inline-flex; justify-content: center; align-items: center; gap: 8px; padding: 11px 18px; border-radius: 999px; font-size: 13px; font-weight: 800; color: #fff; background: linear-gradient(180deg, var(--ekg), var(--ekg-deep)); box-shadow: 0 14px 28px rgba(15, 157, 88, 0.26), inset 0 1px 0 rgba(255, 255, 255, 0.3); }
.ekg-recall-note { margin: 0; font-size: 12px; color: var(--muted-strong); line-height: 1.5; }
.ekg-foot { margin: 0; font-size: 12px; color: var(--muted-strong); text-align: center; }
.ekg-splash { position: fixed; inset: 0; z-index: 2200; display: grid; place-items: center; background: radial-gradient(120% 90% at 50% 22%, #ffffff 0%, var(--bg) 48%, var(--bg-strong) 100%); cursor: pointer; }
.ekg-splash-inner { display: grid; justify-items: center; gap: 26px; padding: 24px; animation: ekg-splash-rise 520ms cubic-bezier(0.22, 0.68, 0.36, 1) both; }
@keyframes ekg-splash-rise { from { opacity: 0; transform: translateY(10px) scale(0.98); } to { opacity: 1; transform: none; } }
.ekg-splash-mark { width: min(250px, 60vw); height: auto; aspect-ratio: 1740 / 512; display: block; }
.ekg-splash-art { width: min(520px, 84vw); height: auto; aspect-ratio: 560 / 140; display: block; overflow: visible; }
.ekg-splash-art path { fill: none; stroke-linecap: round; stroke-linejoin: round; stroke-dasharray: var(--len, 400); stroke-dashoffset: var(--len, 400); }
.ekg-splash-art.is-drawing path { animation: ekg-draw 750ms cubic-bezier(0.33, 0.9, 0.4, 1) forwards; animation-delay: var(--delay, 0ms); }
@keyframes ekg-draw { to { stroke-dashoffset: 0; } }
.ekg-splash-label { font-size: 11px; font-weight: 800; letter-spacing: 0.26em; text-transform: uppercase; color: var(--muted); animation: ekg-splash-label 480ms ease 260ms both; }
@keyframes ekg-splash-label { from { opacity: 0; letter-spacing: 0.42em; } to { opacity: 0.95; letter-spacing: 0.26em; } }
.ekg-splash-rule { width: min(280px, 64vw); height: 2px; border-radius: 2px; background: rgba(15, 23, 42, 0.08); overflow: hidden; }
.ekg-splash-rule::after { content: ""; display: block; height: 100%; width: 100%; border-radius: 2px; background: linear-gradient(90deg, #10b981, #0a84ff); transform-origin: left center; animation: ekg-splash-fill 1100ms cubic-bezier(0.3, 0.8, 0.35, 1) both; }
@keyframes ekg-splash-fill { from { transform: scaleX(0); } to { transform: scaleX(1); } }
.ekg-splash.is-leaving { animation: ekg-splash-open 540ms cubic-bezier(0.4, 0, 0.2, 1) forwards; pointer-events: none; }
@keyframes ekg-splash-open { from { opacity: 1; transform: scale(1); filter: blur(0); } to { opacity: 0; transform: scale(1.14); filter: blur(10px); } }
.ekg-lab-page.is-entering .ekg-stage { opacity: 0; transform: scale(0.965); filter: blur(6px); }
.ekg-lab-page.is-entered .ekg-stage { animation: ekg-settle 700ms cubic-bezier(0.22, 0.68, 0.36, 1) both; }
@keyframes ekg-settle { from { opacity: 0; transform: scale(0.965); filter: blur(6px); } to { opacity: 1; transform: scale(1); filter: blur(0); } }
@media (prefers-reduced-motion: reduce) {
.ekg-splash, .ekg-splash-inner, .ekg-splash-art path, .ekg-splash-art.is-drawing path, .ekg-splash-rule::after, .ekg-splash-label, .ekg-live i { animation: none !important; }
.ekg-splash-art path { stroke-dashoffset: 0; }
.ekg-lab-page.is-entered .ekg-stage, .ekg-lab-page.is-entering .ekg-stage { animation: none !important; opacity: 1; transform: none; filter: none; }
}
.ekg-launch[hidden] { display: none !important; }
.ekg-launch {
position: relative;
display: inline-flex; align-items: center; gap: 10px; padding: 12px 20px 12px 16px; border-radius: 999px;
font-size: 14px; font-weight: 800; letter-spacing: -0.01em; color: #0b0d12; white-space: nowrap; cursor: pointer;
background: linear-gradient(180deg, #ffffff 0%, #f1f3f6 38%, #d5dae1 72%, #c2c8d1 100%);
border: 1px solid #98a2ae;
box-shadow:
inset 0 1px 0 rgba(255, 255, 255, 1),
inset 0 -2px 0 rgba(15, 23, 42, 0.10),
inset 0 0 0 1px rgba(255, 255, 255, 0.45),
0 2px 0 #aab3be,
0 16px 32px rgba(15, 23, 42, 0.22),
0 0 0 4px rgba(255, 255, 255, 0.55);
transition: transform 0.2s ease, box-shadow 0.2s ease, filter 0.2s ease;
}
@media (hover: hover) and (pointer: fine) {
.ekg-launch:hover {
transform: translateY(-2px);
filter: brightness(1.03);
box-shadow:
inset 0 1px 0 rgba(255, 255, 255, 1),
inset 0 -2px 0 rgba(15, 23, 42, 0.10),
inset 0 0 0 1px rgba(255, 255, 255, 0.45),
0 3px 0 #aab3be,
0 22px 40px rgba(15, 23, 42, 0.28),
0 0 0 4px rgba(255, 255, 255, 0.6);
}
}
.ekg-launch:active { transform: translateY(0); box-shadow: inset 0 2px 4px rgba(15, 23, 42, 0.18), 0 8px 18px rgba(15, 23, 42, 0.18); }
.ekg-launch svg { width: 30px; height: 18px; flex: 0 0 30px; overflow: visible; }
.ekg-launch svg path { stroke: #0f9d58; stroke-width: 2.8; stroke-dasharray: 90 90; stroke-dashoffset: 90; animation: ekg-launch-sweep 2.6s cubic-bezier(0.4, 0, 0.3, 1) infinite; filter: drop-shadow(0 0 3px rgba(15, 157, 88, 0.45)); }
.ekg-launch:hover svg path { animation-duration: 1.4s; }
@keyframes ekg-launch-sweep {
0%   { stroke-dashoffset: 90; }
42%  { stroke-dashoffset: 0; }
68%  { stroke-dashoffset: 0; }
100% { stroke-dashoffset: -90; }
}
@media (prefers-reduced-motion: reduce) { .ekg-launch svg path { animation: none; stroke-dashoffset: 0; } }
.ekg-launch-new {
position: absolute; top: -9px; right: -6px;
padding: 3px 8px; border-radius: 999px;
font-size: 10px; font-weight: 900; letter-spacing: 0.08em; text-transform: uppercase; line-height: 1;
color: #fff; background: linear-gradient(180deg, #12a862, #067647);
border: 2px solid #fff;
box-shadow: 0 6px 14px rgba(15, 157, 88, 0.35);
animation: ekg-new-pulse 2.6s ease-in-out infinite;
}
@keyframes ekg-new-pulse {
0%, 100% { transform: scale(1); }
50% { transform: scale(1.08); }
}
@media (prefers-reduced-motion: reduce) { .ekg-launch-new { animation: none; } }
@media (max-width: 980px) {
.ekg-explore { grid-template-columns: minmax(0, 1fr); }
.ekg-list-pane { border-right: 0; border-bottom: 1px solid rgba(255, 255, 255, 0.6); }
.ekg-list { max-height: 280px; }
.ekg-teach, .ekg-compare-grid, .ekg-recall { grid-template-columns: minmax(0, 1fr); }
}
@media (max-width: 720px) {
.ekg-hero { padding: 20px 18px 18px; }
.ekg-hero h1 { font-size: 28px; }
.ekg-hero::before { opacity: 0.35; }
.ekg-hero-top { flex-wrap: wrap; }
.ekg-hero-actions { flex-direction: row; align-items: center; width: 100%; }
.ekg-stage-body, .ekg-compare, .ekg-recall { padding: 14px 12px; }
.ekg-rail { border-radius: var(--radius-md); }
.ekg-answers { grid-template-columns: minmax(0, 1fr); }
.ekg-monitor-head h2 { font-size: 20px; }
.ekg-glass { backdrop-filter: none; -webkit-backdrop-filter: none; background: rgba(255, 255, 255, 0.88); }
}