/* =========================================================================
 *  MÔ PHỎNG LUYỆN THI THỰC HÀNH NAIL — giao diện (bọc trong .ltth)
 * ========================================================================= */
.ltth, .ltth * { box-sizing: border-box; min-width: 0; }
.ltth {
  --c-ink: #252833; --c-primary: #2F5D62; --c-primary2: #71556D; --c-accent: #D9556F;
  --c-good: #1B9E83; --c-good-bg: #E7F6F1; --c-warn: #B97514; --c-warn-bg: #FBF1E0;
  --c-bg: #FBFAFC; --c-surface: #FFFFFF; --c-muted: #786D86; --c-line: #ECE7F1;
  --r: 8px; --r-sm: 8px; --shadow: 0 8px 24px rgba(33,40,54,.08);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Noto Sans", sans-serif;
  color: var(--c-ink); line-height: 1.55; width: min(860px, calc(100vw - 28px)); max-width: 100%; margin: 0 auto; padding: 4px;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
.ltth button, .ltth input, .ltth select, .ltth textarea { font: inherit; color: inherit; }
.ltth button, .ltth a { -webkit-tap-highlight-color: transparent; }
.ltth a { color: inherit; text-decoration: none; }
.ltth input[type="checkbox"], .ltth input[type="radio"] { width: auto; height: auto; padding: 0; margin: 0; box-shadow: none; }
.ltth .ltth-app, .ltth .ltth-card { color: var(--c-ink); }

.ltth .ltth-card { background: var(--c-surface); border: 1px solid var(--c-line); border-radius: var(--r); box-shadow: var(--shadow); overflow: hidden; }
.ltth .ltth-head { background: linear-gradient(135deg, var(--c-primary), var(--c-primary2)); color: #fff; padding: 20px 22px; }
.ltth .ltth-head.sm { padding: 14px 18px; display: flex; align-items: center; gap: 10px; }
.ltth .ltth-head h2 { margin: 0 0 4px; font-size: 1.3rem; font-weight: 800; color: #fff; line-height: 1.2; overflow-wrap: anywhere; }
.ltth .ltth-head h3 { margin: 0; font-size: 1.02rem; font-weight: 800; color: #fff; flex: 1 1 auto; }
.ltth .ltth-head p { margin: 0; font-size: .88rem; color: rgba(255,255,255,.85); overflow-wrap: anywhere; }

.ltth .ltth-bar { display: flex; flex-wrap: wrap; gap: 8px; padding: 14px 18px 4px; align-items: center; }
.ltth .ltth-btn { appearance: none; cursor: pointer; font-family: inherit; font-weight: 750; font-size: .92rem;
  display: inline-flex; align-items: center; justify-content: center; gap: 6px; min-height: 44px;
  background: var(--c-bg); color: var(--c-ink); border: 1.5px solid var(--c-line); border-radius: var(--r-sm); padding: 11px 16px; transition: border-color .15s, transform .08s; white-space: normal; line-height: 1.2; }
.ltth .ltth-btn:hover { border-color: var(--c-primary2); }
.ltth .ltth-btn:active { transform: scale(.98); }
.ltth .ltth-btn.primary { background: linear-gradient(135deg, var(--c-accent), #c8456a); color: #fff; border: none; }
.ltth .ltth-vibtn { appearance: none; cursor: pointer; font-family: inherit; font-weight: 750; font-size: .86rem; min-height: 40px; padding: 8px 13px; border-radius: 999px; border: 1.5px solid var(--c-line); background: var(--c-surface); color: var(--c-primary); white-space: normal; line-height: 1.2; }
.ltth .ltth-vibtn[aria-pressed="false"] { color: var(--c-muted); }
.ltth .ltth-back { appearance: none; cursor: pointer; display: inline-flex; align-items: center; justify-content: center; gap: 6px; flex: 0 0 auto;
  background: rgba(255,255,255,.18); color: #fff; border: 1px solid rgba(255,255,255,.28); border-radius: 8px; min-width: 64px; min-height: 40px; padding: 8px 11px; font-size: .86rem; font-weight: 850; line-height: 1; }
.ltth .ltth-back:hover { background: rgba(255,255,255,.27); }
.ltth .tag { display: inline-block; font-style: normal; font-size: .68rem; font-weight: 700; padding: 1px 7px; border-radius: 999px; margin-left: 4px; background: #EEF4F5; color: var(--c-primary); }
.ltth .ltth-hint { font-size: .86rem; color: var(--c-muted); padding: 4px 18px; margin: 0; }
.ltth .ltth-hint span { display: block; }
.ltth .ltth-hint .ltth-hint-vi { margin-top: 3px; }
.ltth .ltth-actions { display: flex; flex-wrap: wrap; gap: 10px; padding: 12px 18px 20px; }
.ltth .ltth-repeat-row { padding: 8px 18px 0; }
.ltth .ltth-repeat-option { display: inline-flex; align-items: center; gap: 8px; padding: 9px 11px; border: 1px solid var(--c-line); border-radius: var(--r-sm); background: #fff; font-size: .84rem; font-weight: 750; color: var(--c-ink); cursor: pointer; }
.ltth .ltth-repeat-option input { width: 16px; height: 16px; accent-color: var(--c-primary); flex: 0 0 auto; }

/* Dashboard + mode selector */
.ltth .ltth-dashboard { display: grid; gap: 8px; padding: 12px 18px 0; }
.ltth .ltth-dash-next-row { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 12px; align-items: center; padding: 12px 13px; border: 1px solid rgba(47,93,98,.16); border-radius: var(--r-sm); background: #fff; }
.ltth .ltth-dash-next-copy { min-width: 0; }
.ltth .ltth-dash-kicker { display: block; color: var(--c-accent); font-size: .72rem; font-weight: 850; text-transform: uppercase; letter-spacing: .04em; }
.ltth .ltth-dash-next-copy b { display: block; margin-top: 2px; color: var(--c-primary); font-size: .96rem; line-height: 1.2; overflow-wrap: anywhere; }
.ltth .ltth-dash-next-copy small { display: block; margin-top: 2px; color: var(--c-muted); font-size: .78rem; line-height: 1.3; }
.ltth .ltth-dash-next-row .ltth-btn { min-height: 40px; padding: 9px 14px; }
.ltth .ltth-dash-chips { display: flex; flex-wrap: wrap; gap: 7px; }
.ltth .ltth-dash-chips span { display: inline-flex; align-items: center; gap: 5px; min-height: 30px; padding: 5px 9px; border: 1px solid var(--c-line); border-radius: 999px; background: #F8FBFB; color: var(--c-muted); font-size: .76rem; line-height: 1; }
.ltth .ltth-dash-chips b { color: var(--c-primary); font-size: .82rem; }
.ltth .ltth-dash-panel { border: 1px solid var(--c-line); border-radius: var(--r-sm); background: #fff; }
.ltth .ltth-dash-panel summary { cursor: pointer; display: flex; align-items: center; justify-content: space-between; gap: 10px; padding: 10px 12px; color: var(--c-primary); font-weight: 850; list-style: none; }
.ltth .ltth-dash-panel summary::-webkit-details-marker { display: none; }
.ltth .ltth-dash-panel summary::after { content: "+"; display: grid; place-items: center; width: 22px; height: 22px; border-radius: 50%; background: #EEF4F5; color: var(--c-primary); flex: 0 0 auto; }
.ltth .ltth-dash-panel[open] summary::after { content: "-"; }
.ltth .ltth-dash-panel summary span { display: block; font-size: .86rem; }
.ltth .ltth-dash-panel summary small { margin-left: auto; color: var(--c-muted); font-size: .74rem; font-weight: 650; text-align: right; }
.ltth .ltth-dash-readiness { border-top: 1px solid var(--c-line); padding: 11px 12px; background: #fff; }
.ltth .ltth-dash-readiness > div:first-child { display: flex; align-items: baseline; justify-content: space-between; gap: 10px; margin-bottom: 9px; }
.ltth .ltth-dash-readiness b { color: var(--c-primary); font-size: .88rem; }
.ltth .ltth-dash-readiness span { color: var(--c-muted); font-size: .76rem; }
.ltth .ltth-dash-bars { display: grid; grid-template-columns: repeat(7, minmax(0, 1fr)); gap: 7px; }
.ltth .ltth-dash-section { appearance: none; cursor: pointer; position: relative; display: grid; gap: 5px; min-height: 48px; padding: 7px; border: 1px solid var(--c-line); border-radius: 7px; background: #FBFAFC; color: var(--c-ink); text-align: left; overflow: hidden; }
.ltth .ltth-dash-section span { color: var(--c-muted); font-size: .72rem; font-weight: 850; line-height: 1; }
.ltth .ltth-dash-section b { color: var(--c-primary); font-size: .82rem; line-height: 1; }
.ltth .ltth-dash-section i { display: block; height: 4px; border-radius: 99px; background: #E8E3EA; overflow: hidden; }
.ltth .ltth-dash-section i::before { content: ""; display: block; width: var(--p); height: 100%; background: var(--c-accent); }
.ltth .ltth-dash-section.ready i::before { background: var(--c-good); }
.ltth .ltth-dash-section.near i::before { background: var(--c-warn); }
.ltth .ltth-dash-section.empty { opacity: .72; }
.ltth .ltth-dash-priorities { display: grid; gap: 8px; padding: 0 12px 12px; }
.ltth .ltth-dash-priorities > b { color: var(--c-primary); font-size: .86rem; }
.ltth .ltth-dash-priorities > div { display: grid; gap: 8px; }
.ltth .ltth-dash-priority { appearance: none; cursor: pointer; display: block; width: 100%; text-align: left; border: 1px solid #EEF0F3; border-radius: 7px; background: #FBFAFC; padding: 9px 10px; color: var(--c-ink); }
.ltth .ltth-dash-priority b { display: block; color: var(--c-accent); font-size: .8rem; }
.ltth .ltth-dash-priority span { display: block; margin-top: 3px; color: var(--c-muted); font-size: .78rem; line-height: 1.3; }
.ltth .ltth-modes { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 6px; margin: 10px 18px 2px; padding: 5px; border: 1px solid #DDE7E8; border-radius: var(--r-sm); background: #F1F5F5; }
.ltth .ltth-mode { position: relative; appearance: none; cursor: pointer; border: 1px solid transparent; border-radius: 7px; background: transparent; color: #626977; padding: 8px 9px; font: inherit; font-size: .8rem; font-weight: 800; display: flex; align-items: flex-start; gap: 7px; min-height: 52px; text-align: left; }
.ltth .ltth-mode:hover { background: rgba(255,255,255,.68); color: var(--c-ink); }
.ltth .ltth-mode:focus-visible { outline: 3px solid rgba(217,85,111,.28); outline-offset: 2px; }
.ltth .ltth-mode-dot { position: relative; width: 9px; height: 9px; border-radius: 50%; background: #B8C2C4; display: inline-block; flex: 0 0 auto; margin-top: 5px; }
.ltth .ltth-mode-copy { display: block; min-width: 0; }
.ltth .ltth-mode-copy b { display: block; line-height: 1.2; }
.ltth .ltth-mode-copy small { display: none; margin-top: 2px; color: var(--c-muted); font-size: .7rem; font-weight: 650; line-height: 1.2; }
.ltth .ltth-mode.on { background: #fff; color: var(--c-primary); border-color: rgba(47,93,98,.42); box-shadow: inset 0 -3px 0 var(--c-accent); }
.ltth .ltth-mode.on .ltth-mode-dot { width: 15px; height: 15px; background: var(--c-good); box-shadow: 0 0 0 2px rgba(27,158,131,.16); }
.ltth .ltth-mode.on .ltth-mode-dot::after { content: ""; position: absolute; left: 5px; top: 2px; width: 4px; height: 8px; border: solid #fff; border-width: 0 2px 2px 0; transform: rotate(45deg); }
.ltth .ltth-mode.on .ltth-mode-copy small { display: block; }
.ltth .ltth-mode-help { margin: 8px 18px 2px; padding: 10px 12px; border: 1px solid rgba(47,93,98,.16); border-radius: var(--r-sm); background: #F8FBFB; }
.ltth .ltth-mode-help b { display: block; color: var(--c-primary); font-size: .86rem; line-height: 1.25; }
.ltth .ltth-mode-help span { display: block; margin-top: 3px; color: var(--c-muted); font-size: .8rem; line-height: 1.35; }

/* Quy tắc cứng */
.ltth .ltth-rules { padding: 0 18px; }
.ltth .ltth-rules ul { margin: 8px 0; padding-left: 18px; font-size: .88rem; color: #4d4356; }
.ltth .ltth-rules li { margin-bottom: 5px; }
.ltth .ltth-rule-en { display: block; font-weight: 650; color: var(--c-ink); }
.ltth .ltth-rule-vi { display: block; margin-top: 7px; padding-top: 6px; border-top: 1px solid rgba(120,109,134,.18); color: var(--c-muted); }

/* Danh sách section */
.ltth .ltth-path-head { display: flex; align-items: baseline; justify-content: space-between; gap: 10px; margin: 14px 18px 0; padding: 0 2px; }
.ltth .ltth-path-head b { color: var(--c-primary); font-size: .94rem; line-height: 1.25; }
.ltth .ltth-path-head span { color: var(--c-muted); font-size: .78rem; line-height: 1.3; text-align: right; }
.ltth .ltth-secs { display: grid; gap: 8px; padding: 10px 18px 6px; }
.ltth .ltth-sec { display: grid; grid-template-columns: 34px minmax(0, 1fr) auto; align-items: center; gap: 12px;
  width: 100%; text-align: left; cursor: pointer; font-family: inherit; white-space: normal; overflow-wrap: anywhere;
  background: var(--c-bg); color: var(--c-ink); border: 1.5px solid var(--c-line); border-radius: var(--r-sm); padding: 12px 14px; transition: border-color .15s; }
.ltth .ltth-sec:hover { border-color: var(--c-primary2); }
.ltth .ltth-sec.status-ready { border-color: rgba(27,158,131,.38); background: #F8FFFC; }
.ltth .ltth-sec.status-near { border-color: rgba(176,126,33,.34); background: #FFFCF5; }
.ltth .ltth-sec.status-low { border-color: rgba(217,85,111,.28); background: #FFF9FB; }
.ltth .ltth-sec.locked { cursor: not-allowed; opacity: .7; }
.ltth .ltth-sec-no { width: 34px; height: 34px; border-radius: 50%; background: var(--c-primary); color: #fff; font-weight: 800; display: grid; place-items: center; }
.ltth .ltth-sec.status-ready .ltth-sec-no { background: var(--c-good); }
.ltth .ltth-sec.status-near .ltth-sec-no { background: var(--c-warn); }
.ltth .ltth-sec.status-low .ltth-sec-no { background: var(--c-accent); }
.ltth .ltth-sec.locked .ltth-sec-no { background: var(--c-muted); }
.ltth .ltth-sec-name { font-weight: 700; font-size: .96rem; min-width: 0; }
.ltth .ltth-sec-name-en { display: block; line-height: 1.25; overflow-wrap: anywhere; }
.ltth .ltth-sec-name-vi { display: block; margin-top: 3px; color: var(--c-muted); font-size: .87rem; font-weight: 600; line-height: 1.28; overflow-wrap: anywhere; }
.ltth .ltth-sec-meta { font-size: .76rem; color: var(--c-muted); white-space: nowrap; }
.ltth .ltth-best { display: inline-block; margin-left: 5px; color: var(--c-primary); font-weight: 800; }
.ltth .ltth-sec-status { display: inline-flex; align-items: center; min-height: 21px; margin-left: 6px; padding: 2px 7px; border-radius: 999px; background: #EEF4F5; color: var(--c-primary); font-size: .68rem; font-weight: 850; vertical-align: middle; }
.ltth .ltth-sec-status.ready { background: var(--c-good-bg); color: #157863; }
.ltth .ltth-sec-status.near { background: var(--c-warn-bg); color: #8A6118; }
.ltth .ltth-sec-status.low { background: #FFF0F4; color: var(--c-accent); }
.ltth .ltth-sec-status.locked { background: #F1F1F3; color: var(--c-muted); }

/* Khối mua */
.ltth .ltth-buy { margin: 10px 18px 18px; padding: 14px; border: 1.5px dashed var(--c-accent); border-radius: var(--r-sm); background: #FFF6F8;
  display: flex; flex-wrap: wrap; gap: 10px; align-items: center; justify-content: space-between; font-size: .9rem; }
.ltth .ltth-buy > div { flex: 1 1 230px; }
.ltth .ltth-sale-line { display: inline-block; margin-top: 4px; color: var(--c-primary); font-weight: 800; }
.ltth .ltth-buy-note { display: block; margin-top: 6px; color: var(--c-warn); font-weight: 700; line-height: 1.35; }
.ltth .ltth-buy-steps { flex: 1 1 100%; display: block; margin-top: 2px; color: var(--c-muted); font-weight: 650; line-height: 1.4; }

.ltth .ltth-life { margin: 14px 18px 10px; padding: 12px 14px; border: 1px solid var(--c-line); border-radius: var(--r-sm); background: var(--c-soft); font-size: .9rem; display: grid; gap: 10px; }
.ltth .ltth-life-row, .ltth .ltth-life-tools, .ltth .ltth-life-upsell { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; }
.ltth .ltth-life-h, .ltth .ltth-life-upsell > span { font-weight: 850; color: var(--c-primary); margin-right: 2px; }
.ltth .ltth-life-link { display: inline-flex; align-items: center; justify-content: center; min-height: 34px; padding: 6px 10px; border: 1px solid rgba(18,105,111,.22); border-radius: 999px; background: #fff; color: var(--c-primary); font-weight: 800; line-height: 1.18; text-decoration: none; }
.ltth .ltth-life-link.primary { background: var(--c-primary); border-color: var(--c-primary); color: #fff; }
.ltth .ltth-life-link.soft { background: #FFF6F8; border-color: rgba(225,69,105,.22); color: var(--c-accent); }
.ltth .ltth-life-link.tool { font-size: .84rem; font-weight: 760; }
.ltth .ltth-life-link:hover { border-color: currentColor; text-decoration: none; }
.ltth .ltth-life-more { border-top: 1px dashed rgba(18,105,111,.18); padding-top: 8px; }
.ltth .ltth-life-more summary { width: fit-content; cursor: pointer; color: var(--c-primary); font-weight: 850; }
.ltth .ltth-life-more summary:focus-visible { outline: 3px solid rgba(18,105,111,.24); outline-offset: 3px; border-radius: var(--r-sm); }
.ltth .ltth-life-tools { margin-top: 8px; }
.ltth .ltth-life-upsell { border-top: 1px dashed rgba(18,105,111,.18); padding-top: 8px; }

/* Checklist đồ nghề */
.ltth .ltth-kit { display: grid; gap: 6px; padding: 6px 18px 20px; }
.ltth .ltth-kit-row { display: flex; gap: 10px; align-items: flex-start; padding: 10px 12px; border: 1px solid var(--c-line); border-radius: var(--r-sm); font-size: .9rem; cursor: pointer; }
.ltth .ltth-kit-row.on { background: var(--c-good-bg); border-color: #BBE6DA; }
.ltth .ltth-kit-row input { margin-top: 3px; }
.ltth .ltth-kit-row i { color: var(--c-muted); font-style: italic; }
.ltth .ltth-kit-copy { display: block; }
.ltth .ltth-kit-en { display: block; font-weight: 650; color: var(--c-ink); }
.ltth .ltth-kit-vi { display: block; margin-top: 7px; padding-top: 6px; border-top: 1px solid rgba(120,109,134,.18); color: var(--c-muted); }
.ltth .ltth-kit-vi b { color: #5B5266; }
.ltth .ltth-kit-note { display: block; margin-top: 2px; color: var(--c-muted); font-style: italic; font-weight: 400; }

/* Lời giám thị */
.ltth .ltth-time-tag { font-size: .82rem; color: var(--c-warn); font-weight: 700; }
.ltth .ltth-proctor { margin: 6px 18px; padding: 12px 14px; background: #F5F8F8; border: 1px solid var(--c-line); border-radius: var(--r-sm); }
.ltth .ltth-proctor-h { font-weight: 800; font-size: .82rem; color: var(--c-primary); margin-bottom: 8px; text-transform: uppercase; letter-spacing: .03em; }
.ltth .ltth-pl { margin-bottom: 8px; }
.ltth .ltth-pl .en, .ltth .ltth-sub .en { font-weight: 600; }
.ltth .ltth-pl .vi, .ltth .ltth-sub .vi { font-size: .9rem; color: var(--c-muted); }

/* Media luyện thao tác */
.ltth .ltth-media { margin: 12px 18px; }
.ltth .ltth-media h4 { margin: 0 0 8px; font-size: .86rem; color: var(--c-primary); text-transform: uppercase; letter-spacing: .03em; }
.ltth .ltth-media-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(210px, 280px)); gap: 10px; align-items: start; }
.ltth .ltth-media-item { margin: 0; border: 1px solid var(--c-line); border-radius: var(--r-sm); overflow: hidden; background: #fff; }
.ltth .ltth-media-item.video { grid-column: 1 / -1; max-width: 760px; }
.ltth .ltth-media-item img { display: block; width: 100%; aspect-ratio: 4 / 3; object-fit: contain; background: #fff; }
.ltth .ltth-media-item video { display: block; width: 100%; aspect-ratio: 16 / 9; object-fit: contain; background: #120f17; }
.ltth .ltth-media-item figcaption { padding: 9px 10px 10px; font-size: .82rem; color: var(--c-muted); }
.ltth .ltth-media-item figcaption b, .ltth .ltth-media-item figcaption span { display: block; }
.ltth .ltth-media-item figcaption b { color: var(--c-ink); margin-bottom: 2px; }

/* Learn mode */
.ltth .ltth-study-intro { margin: 12px 18px 0; padding: 11px 13px; border: 1px solid rgba(47,93,98,.16); border-radius: var(--r-sm); background: #F8FBFB; color: #4D5962; font-size: .88rem; font-weight: 650; }
.ltth .ltth-study-media .ltth-media { margin-bottom: 10px; }
.ltth .ltth-gallery { margin: 12px 18px; border: 1px solid var(--c-line); border-radius: var(--r-sm); background: #fff; overflow: hidden; }
.ltth .ltth-gallery-head { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 8px; padding: 11px 12px; border-bottom: 1px solid var(--c-line); background: #FDFCFD; }
.ltth .ltth-gallery-head h4 { margin: 0; color: var(--c-primary); font-size: .88rem; }
.ltth .ltth-gallery-head span { color: var(--c-muted); font-size: .78rem; font-weight: 650; }
.ltth .ltth-gallery-track { display: grid; grid-auto-flow: column; grid-auto-columns: minmax(260px, 82%); gap: 10px; overflow-x: auto; overscroll-behavior-x: contain; scroll-snap-type: x mandatory; padding: 12px; scroll-behavior: smooth; }
.ltth .ltth-gallery-slide { scroll-snap-align: start; margin: 0; border: 1px solid var(--c-line); border-radius: 7px; overflow: hidden; background: #fff; }
.ltth .ltth-gallery-slide img { display: block; width: 100%; aspect-ratio: 4 / 3; object-fit: contain; background: #fff; }
.ltth .ltth-gallery-slide figcaption { padding: 9px 10px; font-size: .82rem; color: var(--c-muted); }
.ltth .ltth-gallery-slide figcaption b, .ltth .ltth-gallery-slide figcaption span { display: block; }
.ltth .ltth-gallery-slide figcaption b { color: var(--c-ink); margin-bottom: 2px; }
.ltth .ltth-gallery-thumbs { display: flex; gap: 6px; overflow-x: auto; padding: 0 12px 12px; }
.ltth .ltth-gallery-thumb { display: inline-flex; align-items: center; justify-content: center; flex: 0 0 auto; min-width: 34px; height: 34px; padding: 0 9px; border: 1px solid #DDE7E8; border-radius: 7px; background: #F5F8F8; color: var(--c-primary); font-size: .78rem; font-weight: 850; }
.ltth .ltth-gallery-thumb span { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.ltth .ltth-study-accordions { display: grid; gap: 8px; margin: 12px 18px; }
.ltth .ltth-study-accordions details { border: 1px solid var(--c-line); border-radius: var(--r-sm); background: #fff; overflow: hidden; }
.ltth .ltth-study-accordions summary { cursor: pointer; display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 12px 13px; color: var(--c-primary); font-weight: 850; list-style: none; }
.ltth .ltth-study-accordions summary::-webkit-details-marker { display: none; }
.ltth .ltth-study-accordions summary::after { content: "+"; display: grid; place-items: center; width: 24px; height: 24px; border-radius: 50%; background: #EEF4F5; color: var(--c-primary); flex: 0 0 auto; }
.ltth .ltth-study-accordions details[open] summary::after { content: "-"; }
.ltth .ltth-study-accordions summary span, .ltth .ltth-study-accordions summary small { display: block; }
.ltth .ltth-study-accordions summary small { margin-left: auto; color: var(--c-muted); font-size: .76rem; font-weight: 650; text-align: right; }
.ltth .ltth-disclosure-body { padding: 0 13px 13px; border-top: 1px solid #F1EDF4; }
.ltth .ltth-disclosure-body > .ltth-media,
.ltth .ltth-disclosure-body > .ltth-gallery,
.ltth .ltth-disclosure-body > .ltth-note { margin: 10px 0 0; }
.ltth .ltth-disclosure-body > .ltth-gallery.in-accordion { border: 0; border-radius: 0; background: transparent; }
.ltth .ltth-disclosure-body > .ltth-gallery.in-accordion .ltth-gallery-track { padding: 10px 0; }
.ltth .ltth-disclosure-body > .ltth-gallery.in-accordion .ltth-gallery-thumbs { padding: 0 0 2px; }
.ltth .ltth-disclosure-body > .ltth-note { border-radius: 7px; }
.ltth .ltth-proctor.compact { margin: 10px 0 0; }
.ltth .ltth-learn-sub { margin: 0; border-top: 1px solid #F1EDF4; }
.ltth .ltth-learn-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; padding: 12px 18px 2px; }
.ltth .ltth-learn-grid section { border: 1px solid var(--c-line); border-radius: var(--r-sm); padding: 12px; background: #fff; }
.ltth .ltth-learn-grid h4 { margin: 0 0 8px; color: var(--c-primary); }
.ltth .ltth-mini-kit { display: grid; gap: 6px; }
.ltth .ltth-mini-kit div { border-top: 1px solid var(--c-line); padding-top: 6px; }
.ltth .ltth-mini-kit div:first-child { border-top: none; padding-top: 0; }
.ltth .ltth-mini-kit span { display: block; font-weight: 700; }
.ltth .ltth-mini-kit small { display: block; color: var(--c-muted); }
.ltth .ltth-compact-list { margin: 0; padding-left: 18px; color: var(--c-muted); font-size: .88rem; }

/* Practice flow */
.ltth .ltth-flow { margin: 12px 18px; padding: 12px 14px; border: 1px solid var(--c-line); border-radius: var(--r-sm); background: #fff; }
.ltth .ltth-flow-disclosure:not(.in-accordion) { margin: 12px 18px; border: 1px solid var(--c-line); border-radius: var(--r-sm); background: #fff; overflow: hidden; }
.ltth .ltth-flow-disclosure:not(.in-accordion) summary { cursor: pointer; display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 12px 13px; color: var(--c-primary); font-weight: 850; list-style: none; }
.ltth .ltth-flow-disclosure:not(.in-accordion) summary::-webkit-details-marker { display: none; }
.ltth .ltth-flow-disclosure:not(.in-accordion) summary::after { content: "+"; display: grid; place-items: center; width: 24px; height: 24px; border-radius: 50%; background: #EEF4F5; color: var(--c-primary); flex: 0 0 auto; }
.ltth .ltth-flow-disclosure:not(.in-accordion)[open] summary::after { content: "-"; }
.ltth .ltth-flow-disclosure:not(.in-accordion) summary span, .ltth .ltth-flow-disclosure:not(.in-accordion) summary small { display: block; }
.ltth .ltth-flow-disclosure:not(.in-accordion) summary small { margin-left: auto; color: var(--c-muted); font-size: .76rem; font-weight: 650; text-align: right; }
.ltth .ltth-flow-disclosure .ltth-disclosure-body > .ltth-flow { margin: 10px 0 0; padding: 0; border: 0; border-radius: 0; background: transparent; }
.ltth .ltth-flow-head { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 8px; margin-bottom: 4px; }
.ltth .ltth-flow h4 { margin: 0; color: var(--c-primary); font-size: .92rem; }
.ltth .ltth-flow p { margin: 0 0 10px; color: var(--c-muted); font-size: .84rem; }
.ltth .ltth-flow-focus { border: 1px solid rgba(47,93,98,.2); border-radius: var(--r-sm); background: #F8FBFB; padding: 12px; }
.ltth .ltth-flow-count { display: inline-flex; align-items: center; min-height: 24px; padding: 2px 8px; border-radius: 999px; background: #EEF4F5; color: var(--c-primary); font-size: .72rem; font-weight: 850; }
.ltth .ltth-flow-focus-en { margin-top: 9px; color: var(--c-ink); font-size: 1rem; font-weight: 800; line-height: 1.35; }
.ltth .ltth-flow-focus-vi { margin-top: 5px; color: var(--c-muted); font-size: .91rem; font-weight: 650; line-height: 1.35; }
.ltth .ltth-flow-nav { display: flex; flex-wrap: wrap; gap: 7px; margin-top: 12px; }
.ltth .ltth-flow-nav button, .ltth .ltth-flow-all { appearance: none; cursor: pointer; border: 1px solid #DDE7E8; border-radius: 7px; background: #fff; color: var(--c-primary); padding: 7px 10px; min-height: 36px; font: inherit; font-size: .76rem; font-weight: 850; line-height: 1.2; }
.ltth .ltth-flow-all { background: #F5F8F8; border-color: rgba(47,93,98,.22); }
.ltth .ltth-flow-nav button:hover, .ltth .ltth-flow-all:hover { border-color: var(--c-primary2); }
.ltth .ltth-flow-nav button:disabled { opacity: .45; cursor: not-allowed; }
.ltth .ltth-flow-current-audio { background: var(--c-primary) !important; color: #fff !important; border-color: var(--c-primary) !important; }
.ltth .ltth-flow-list { display: grid; gap: 6px; margin-top: 10px; max-height: 260px; overflow: auto; padding-right: 2px; }
.ltth .ltth-flow-steps { margin-top: 10px; border: 1px solid var(--c-line); border-radius: 7px; background: #fff; overflow: hidden; }
.ltth .ltth-flow-steps summary { cursor: pointer; padding: 8px 10px; color: var(--c-primary); font-size: .78rem; font-weight: 850; list-style-position: inside; }
.ltth .ltth-flow-steps .ltth-flow-list { margin: 0; padding: 0 8px 8px; max-height: 210px; }
.ltth .ltth-flow-step { appearance: none; cursor: pointer; width: 100%; display: grid; grid-template-columns: 28px minmax(0, 1fr); gap: 8px; align-items: flex-start; padding: 8px 9px; border: 1px solid var(--c-line); border-radius: 7px; background: #fff; color: var(--c-ink); text-align: left; font: inherit; }
.ltth .ltth-flow-step:hover { border-color: var(--c-primary2); }
.ltth .ltth-flow-step.on { border-color: rgba(47,93,98,.5); background: #F5F8F8; box-shadow: inset 3px 0 0 var(--c-accent); }
.ltth .ltth-flow-step-no { display: grid; place-items: center; width: 24px; height: 24px; border-radius: 50%; background: #EEF4F5; color: var(--c-primary); font-size: .72rem; font-weight: 850; }
.ltth .ltth-flow-step.on .ltth-flow-step-no { background: var(--c-primary); color: #fff; }
.ltth .ltth-flow-step-copy { display: block; min-width: 0; }
.ltth .ltth-flow-step-en { display: block; font-size: .82rem; font-weight: 750; line-height: 1.3; }
.ltth .ltth-flow-step-vi { display: block; margin-top: 3px; color: var(--c-muted); font-size: .78rem; line-height: 1.3; }
.ltth .ltth-flow.compact { margin-top: 8px; margin-bottom: 8px; padding: 10px 12px; background: #FDFCFD; }
.ltth .ltth-flow.compact .ltth-flow-focus { padding: 10px; }
.ltth .ltth-flow.compact .ltth-flow-list { max-height: 180px; }
.ltth .ltth-flow.compact .ltth-flow-step { padding: 7px 8px; }
.ltth .ltth-flow.compact > p { margin-bottom: 8px; }

/* Timed practice cockpit */
.ltth .ltth-run-progress { margin: 12px 18px; padding: 12px 14px; border: 1px solid rgba(47,93,98,.18); border-radius: var(--r-sm); background: #F8FBFB; }
.ltth .ltth-run-progress > div:first-child { display: flex; align-items: center; justify-content: space-between; gap: 10px; color: var(--c-primary); font-size: .88rem; }
.ltth .ltth-run-progress-count { font-weight: 900; }
.ltth .ltth-run-progress-bar { height: 8px; margin-top: 8px; border-radius: 999px; background: #E8F0F1; overflow: hidden; }
.ltth .ltth-run-progress-bar span { display: block; height: 100%; border-radius: inherit; background: var(--c-accent); transition: width .18s ease; }
.ltth .ltth-run-progress p { margin: 8px 0 0; color: var(--c-muted); font-size: .82rem; line-height: 1.35; }
.ltth .ltth-task-media-disclosure { margin-top: 8px; border: 1px solid #EDF0F2; border-radius: 7px; background: #fff; }
.ltth .ltth-task-media-disclosure summary { cursor: pointer; padding: 7px 9px; color: var(--c-primary); font-size: .76rem; font-weight: 850; list-style-position: inside; }
.ltth .ltth-task-media-disclosure .ltth-task-media { padding: 0 9px 9px; }

/* Cleanup phase preview */
.ltth .ltth-cleanup-preview { margin: 12px 18px; padding: 12px 14px; border: 1px solid #E8D8DD; border-radius: var(--r-sm); background: #FFF8FA; }
.ltth .ltth-cleanup-preview h4 { margin: 0 0 4px; color: var(--c-accent); font-size: .92rem; }
.ltth .ltth-cleanup-preview h4 span { display: inline-block; margin-left: 4px; color: var(--c-warn); font-size: .8rem; }
.ltth .ltth-phase-disclosure summary { cursor: pointer; color: var(--c-accent); font-weight: 800; font-size: .92rem; list-style-position: outside; }
.ltth .ltth-phase-disclosure summary span { display: inline-flex; align-items: baseline; gap: 6px; min-width: 0; }
.ltth .ltth-phase-disclosure summary small { color: var(--c-warn); font-size: .8rem; font-weight: 800; }
.ltth .ltth-phase-disclosure[open] summary { margin-bottom: 8px; }
.ltth .ltth-study-accordions .ltth-phase-disclosure.in-accordion summary { color: var(--c-primary); font-weight: 850; list-style: none; margin-bottom: 0; }
.ltth .ltth-study-accordions .ltth-phase-disclosure.in-accordion[open] summary { margin-bottom: 0; }
.ltth .ltth-study-accordions .ltth-phase-disclosure.in-accordion summary span { display: block; }
.ltth .ltth-study-accordions .ltth-phase-disclosure.in-accordion summary small { margin-left: 6px; color: var(--c-muted); font-size: .76rem; font-weight: 650; }
.ltth .ltth-study-accordions .ltth-phase-disclosure.in-accordion .ltth-disclosure-body > p { margin: 10px 0; color: var(--c-muted); font-size: .84rem; }
.ltth .ltth-cleanup-preview p { margin: 0 0 10px; color: var(--c-muted); font-size: .84rem; }
.ltth .ltth-cleanup-script { display: grid; gap: 6px; padding: 10px; border: 1px solid rgba(217,85,111,.18); border-radius: 7px; background: #fff; }
.ltth .ltth-cleanup-script > b, .ltth .ltth-cleanup-tasks > b { color: var(--c-primary); font-size: .8rem; text-transform: uppercase; letter-spacing: .03em; }
.ltth .ltth-cleanup-script .ltth-pl { margin-bottom: 4px; }
.ltth .ltth-cleanup-tasks { margin-top: 10px; padding: 10px; border: 1px solid rgba(217,85,111,.18); border-radius: 7px; background: #fff; }
.ltth .ltth-cleanup-tasks ul { list-style: none; margin: 8px 0 0; padding: 0; display: grid; gap: 8px; }
.ltth .ltth-cleanup-tasks li { display: grid; grid-template-columns: 34px minmax(0, 1fr); gap: 8px; }
.ltth .ltth-cleanup-code { color: var(--c-primary2); font-weight: 850; }
.ltth .ltth-cleanup-en { display: block; font-weight: 700; line-height: 1.35; }
.ltth .ltth-cleanup-vi { display: block; margin-top: 3px; color: var(--c-muted); line-height: 1.35; }

/* Section 2 phase map */
.ltth .ltth-phase-map { margin: 12px 18px; padding: 12px; border: 1px solid rgba(47,93,98,.18); border-radius: var(--r-sm); background: #F8FBFB; container-type: inline-size; }
.ltth .ltth-phase-map h4 { margin: 0 0 9px; color: var(--c-primary); font-size: .9rem; }
.ltth .ltth-phase-map-grid { display: grid; grid-template-columns: 1fr; gap: 0; }
.ltth .ltth-phase-card { position: relative; display: grid; grid-template-columns: 30px minmax(0, 1fr); gap: 10px; align-items: flex-start; padding: 10px 0; border: 0; border-top: 1px solid rgba(47,93,98,.13); border-radius: 0; background: transparent; }
.ltth .ltth-phase-card:first-child { border-top: 0; padding-top: 0; }
.ltth .ltth-phase-card:last-child { padding-bottom: 0; }
.ltth .ltth-phase-card b { display: block; grid-column: 2; color: var(--c-ink); font-size: .9rem; line-height: 1.25; overflow-wrap: normal; word-break: normal; }
.ltth .ltth-phase-card span:not(.ltth-phase-no) { display: block; grid-column: 2; margin-top: -5px; color: var(--c-muted); font-size: .82rem; line-height: 1.35; overflow-wrap: normal; word-break: normal; }
.ltth .ltth-phase-no { display: grid; place-items: center; width: 24px; height: 24px; border-radius: 50%; background: #EEF4F5; color: var(--c-primary); font-size: .72rem; font-weight: 900; }
.ltth .ltth-phase-card.active { box-shadow: inset 3px 0 0 var(--c-accent); padding-left: 9px; background: rgba(255,255,255,.55); border-radius: 7px; }
.ltth .ltth-phase-card.active .ltth-phase-no { background: var(--c-accent); color: #fff; }
.ltth .ltth-phase-card.done { background: #F7FBF9; }
.ltth .ltth-phase-card.done .ltth-phase-no { background: var(--c-good); color: #fff; }
.ltth .ltth-phase-callout { margin: 10px 18px; padding: 12px 14px; border: 1px solid rgba(185,117,20,.24); border-left: 3px solid var(--c-warn); border-radius: var(--r-sm); background: #FFFBF4; }
.ltth .ltth-phase-callout b { display: block; color: #6F4B12; font-size: .9rem; line-height: 1.3; }
.ltth .ltth-phase-callout span { display: block; margin-top: 3px; color: #7D6A4F; font-size: .84rem; line-height: 1.35; }
.ltth .ltth-phase-script { margin: 10px 18px; border: 1px solid var(--c-line); border-radius: var(--r-sm); background: #fff; overflow: hidden; }
.ltth .ltth-phase-script summary { cursor: pointer; padding: 11px 13px; color: var(--c-primary); font-size: .85rem; font-weight: 850; }
.ltth .ltth-phase-script .ltth-proctor.compact { margin: 0; border-radius: 0; border-left: none; border-right: none; border-bottom: none; }

/* Đang chạy */
.ltth .ltth-card.running { }
.ltth .ltth-run-top { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; padding: 12px 16px; background: linear-gradient(135deg, var(--c-primary), var(--c-primary2)); }
.ltth .ltth-run-top .ltth-audio-stop { margin-left: auto; }
.ltth .ltth-run-top .ltth-stop { margin-left: 0; }
.ltth .ltth-clock { background: rgba(255,255,255,.15); color: #fff; border-radius: 10px; padding: 6px 14px; font-variant-numeric: tabular-nums; }
.ltth .ltth-clock .t { font-size: 1.5rem; font-weight: 800; }
.ltth .ltth-clock.low { background: var(--c-accent); animation: ltth-pulse 1s infinite; }
@keyframes ltth-pulse { 50% { opacity: .55; } }
.ltth .ltth-sub { min-height: 44px; padding: 12px 18px; background: #F5F8F8; border-bottom: 1px solid var(--c-line); }
.ltth .ltth-run-name { font-weight: 800; padding: 12px 18px 0; }
.ltth .ltth-title-en { display: block; line-height: 1.25; }
.ltth .ltth-title-vi { display: block; margin-top: 3px; color: inherit; opacity: .82; font-size: .9em; font-weight: 700; line-height: 1.25; }
.ltth .ltth-run-name .ltth-title-vi { color: var(--c-muted); opacity: 1; }
.ltth .ltth-run-coach { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 8px; margin: 12px 18px; }
.ltth .ltth-run-coach div { padding: 11px 12px; border: 1px solid rgba(47,93,98,.16); border-radius: var(--r-sm); background: #fff; }
.ltth .ltth-run-coach b { display: block; color: var(--c-primary); font-size: .76rem; text-transform: uppercase; letter-spacing: .03em; }
.ltth .ltth-run-coach span { display: block; margin-top: 4px; color: #46545C; font-size: .83rem; line-height: 1.35; }
.ltth .ltth-run-workbench { display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(260px, .75fr); gap: 12px; align-items: start; margin: 12px 18px; }
.ltth .ltth-run-workbench .ltth-flow,
.ltth .ltth-run-workbench .ltth-run-progress { margin: 0; height: 100%; }
.ltth .ltth-run-workbench .ltth-flow { border-color: rgba(47,93,98,.22); background: #FDFEFE; }
.ltth .ltth-evidence-head { margin: 14px 18px 0; padding: 11px 13px; border: 1px solid rgba(217,85,111,.16); border-left: 3px solid var(--c-accent); border-radius: var(--r-sm); background: #FFF8FA; }
.ltth .ltth-evidence-head b { display: block; color: var(--c-accent); font-size: .88rem; }
.ltth .ltth-evidence-head span { display: block; margin-top: 3px; color: var(--c-muted); font-size: .82rem; line-height: 1.35; }

/* Tasks (rubric) */
.ltth .ltth-tasks { display: grid; gap: 6px; padding: 8px 18px 20px; }
.ltth .ltth-task { display: flex; gap: 10px; align-items: flex-start; padding: 10px 12px; border: 1px solid var(--c-line); border-radius: var(--r-sm); cursor: pointer; font-size: .9rem; }
.ltth .ltth-task.on { background: var(--c-good-bg); border-color: #BBE6DA; }
.ltth .ltth-task input { margin-top: 3px; }
.ltth .ltth-task-body { display: block; flex: 1 1 auto; min-width: 0; }
.ltth .ltth-task .code { color: var(--c-primary2); }
.ltth .ltth-task .en { display: block; font-weight: 600; }
.ltth .ltth-task .vi { display: block; color: var(--c-muted); }
.ltth .ltth-task .tag { font-style: normal; font-size: .68rem; font-weight: 700; padding: 1px 7px; border-radius: 999px; margin-right: 4px; }
.ltth .ltth-task .tag.san { background: var(--c-warn-bg); color: var(--c-warn); }
.ltth .ltth-task .tag.kit { background: #EEF; color: #55c; }
.ltth .ltth-task-tools { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 8px; }
.ltth .ltth-step-audio { appearance: none; cursor: pointer; border: 1px solid #DDE7E8; border-radius: 7px; background: #fff; color: var(--c-primary); padding: 6px 9px; min-height: 34px; font: inherit; font-size: .74rem; font-weight: 800; line-height: 1.2; }
.ltth .ltth-step-audio:hover { border-color: var(--c-primary2); }
.ltth .ltth-task-media { display: grid; grid-template-columns: repeat(auto-fill, minmax(128px, 170px)); gap: 8px; margin-top: 10px; width: 100%; }
.ltth .ltth-task-media-item { display: block; border: 1px solid var(--c-line); border-radius: 7px; overflow: hidden; background: #fff; }
.ltth .ltth-task.on .ltth-task-media-item { border-color: #BBE6DA; }
.ltth .ltth-task-media-item img { display: block; width: 100%; aspect-ratio: 4 / 3; object-fit: contain; background: #fff; }
.ltth .ltth-task-media-item video { display: block; width: 100%; aspect-ratio: 16 / 9; object-fit: contain; background: #120f17; }
.ltth .ltth-task-media-item span { display: block; padding: 6px 7px; color: var(--c-muted); font-size: .74rem; font-weight: 650; line-height: 1.25; }

/* Điểm */
.ltth .ltth-score { text-align: center; padding: 18px; margin: 12px 18px; border-radius: var(--r-sm); }
.ltth .ltth-score.ok { background: var(--c-good-bg); }
.ltth .ltth-score.warn { background: var(--c-warn-bg); }
.ltth .ltth-score .big { font-size: 2.4rem; font-weight: 800; line-height: 1; color: var(--c-primary); }
.ltth .ltth-score-coach { display: grid; grid-template-columns: auto minmax(0, 1fr); gap: 14px; align-items: center; margin: 12px 18px; padding: 14px; border: 1px solid rgba(47,93,98,.18); border-radius: var(--r-sm); background: linear-gradient(180deg, #F8FBFB, #fff); }
.ltth .ltth-score-coach h3 { margin: 3px 0 4px; color: var(--c-primary); font-size: 1rem; line-height: 1.2; }
.ltth .ltth-score-coach p { margin: 0; color: var(--c-muted); font-size: .86rem; line-height: 1.35; }
.ltth .ltth-score-ring { width: 86px; height: 86px; border-radius: 50%; display: grid; place-items: center; align-content: center; background: conic-gradient(var(--c-good) var(--p), #E8E3EA 0); color: var(--c-primary); box-shadow: inset 0 0 0 10px #fff; }
.ltth .ltth-score-ring b { display: block; font-size: 1.3rem; line-height: 1; }
.ltth .ltth-score-ring span { display: block; color: var(--c-muted); font-size: .72rem; font-weight: 800; }
.ltth .ltth-score-focus { margin-top: 8px; display: flex; flex-wrap: wrap; gap: 6px; align-items: center; color: var(--c-muted); font-size: .8rem; }
.ltth .ltth-score-focus b { color: var(--c-primary); }
.ltth .ltth-score-focus span { display: inline-flex; padding: 3px 8px; border-radius: 999px; background: #EEF4F5; color: var(--c-primary); font-weight: 800; }
.ltth .ltth-score-focus.good { color: var(--c-good); }
.ltth .ltth-score-plan { grid-column: 1 / -1; display: grid; gap: 8px; margin: 0; padding: 0; list-style: none; }
.ltth .ltth-score-plan li { border: 1px solid #EEF0F3; border-radius: 7px; padding: 9px 10px; background: #FBFAFC; }
.ltth .ltth-score-plan b, .ltth .ltth-score-plan span, .ltth .ltth-score-plan em { display: block; }
.ltth .ltth-score-plan b { color: var(--c-accent); font-size: .8rem; }
.ltth .ltth-score-plan span { margin-top: 3px; color: var(--c-ink); font-size: .84rem; line-height: 1.3; }
.ltth .ltth-score-plan em { margin-top: 4px; color: var(--c-muted); font-style: normal; font-size: .78rem; line-height: 1.3; }
.ltth .ltth-score-missed { margin: 8px 18px 12px; border: 1px solid var(--c-line); border-radius: var(--r-sm); background: #fff; }
.ltth .ltth-score-missed summary { cursor: pointer; padding: 10px 12px; color: var(--c-primary); font-weight: 850; }
.ltth .ltth-score-missed ul { margin: 0; padding: 0 14px 12px 28px; font-size: .9rem; }
.ltth h4 { margin: 14px 18px 6px; font-size: .92rem; }
.ltth .ltth-card > ul { margin: 0 18px; padding-left: 18px; font-size: .9rem; }
.ltth .ltth-card > ul li { margin-bottom: 5px; }
.ltth .ltth-allgood { color: var(--c-good); font-weight: 700; padding: 0 18px; }
.ltth .ltth-note { margin: 12px 18px; padding: 12px 14px; background: #F5F8F8; border-left: 3px solid var(--c-accent); border-radius: var(--r-sm); font-size: .88rem; }
.ltth .ltth-note ul { margin: 6px 0 0; padding-left: 18px; }
.ltth .ltth-breakdown { display: grid; gap: 8px; margin: 8px 18px 12px; }
.ltth .ltth-break-item { border: 1px solid var(--c-line); border-radius: var(--r-sm); padding: 10px 12px; background: #fff; }
.ltth .ltth-break-item b { color: var(--c-primary); }
.ltth .ltth-break-item p { margin: 4px 0 0; color: var(--c-muted); font-size: .86rem; }
.ltth .ltth-table-wrap { margin: 10px 18px; overflow-x: auto; border: 1px solid var(--c-line); border-radius: var(--r-sm); }
.ltth .ltth-report-table { width: 100%; border-collapse: collapse; font-size: .86rem; }
.ltth .ltth-report-table th, .ltth .ltth-report-table td { padding: 8px 10px; border-bottom: 1px solid var(--c-line); text-align: left; }
.ltth .ltth-report-table th { background: #F5F8F8; color: var(--c-primary); }
.ltth .ltth-report-table tr:last-child td { border-bottom: none; }

/* SEO render-sẵn */
.ltth.ltth-ready .ltth-seo { display: none; }
.ltth .ltth-seo { margin-top: 22px; padding: 18px 4px 4px; }
.ltth .ltth-seo h2 { font-size: 1.18rem; color: var(--c-primary); margin: 0 0 10px; }
.ltth .ltth-seo > p { font-size: .92rem; margin: 0 0 12px; }
.ltth .ltth-seo-list { font-size: .92rem; padding-left: 20px; }
.ltth .ltth-seo-list li { margin-bottom: 5px; }
.ltth .ltth-seo .ltth-en { color: var(--c-muted); font-size: .85em; }
.ltth .ltth-seo-note { font-size: .85rem; color: var(--c-muted); }
.ltth .ltth-sell-points { margin: 14px 0 16px; padding: 14px 16px; border: 1px solid rgba(225,69,105,.20); border-radius: var(--r-sm); background: #FFF7FA; }
.ltth .ltth-sell-points h3 { margin: 0 0 8px; color: var(--c-primary); font-size: 1rem; }
.ltth .ltth-sell-points ul { margin: 0; padding-left: 20px; font-size: .92rem; line-height: 1.5; }
.ltth .ltth-sell-points li { margin: 5px 0; }

@media (max-width: 620px) {
  .ltth { width: min(100%, calc(100vw - 28px)); max-width: 100%; padding: 0; }
  .ltth .ltth-card { width: 100%; max-width: 100%; }
  .ltth .ltth-head { padding: 18px 20px; }
  .ltth .ltth-head h2 { font-size: 1.16rem; }
  .ltth .ltth-bar { padding: 12px 16px 4px; }
  .ltth .ltth-path-head { flex-direction: column; align-items: flex-start; gap: 3px; margin-left: 16px; margin-right: 16px; }
  .ltth .ltth-path-head span { text-align: left; }
  .ltth .ltth-secs { padding: 10px 16px 6px; }
  .ltth .ltth-sec { grid-template-columns: 30px minmax(0, 1fr); width: 100%; }
  .ltth .ltth-sec-meta { grid-column: 2; white-space: normal; }
  .ltth .ltth-sec-status { display: flex; width: max-content; margin-left: 0; margin-top: 5px; }
  .ltth .ltth-clock .t { font-size: 1.25rem; }
  .ltth .ltth-dash-next-row { grid-template-columns: 1fr; }
  .ltth .ltth-dash-next-row .ltth-btn { width: 100%; }
  .ltth .ltth-dash-panel summary { align-items: flex-start; }
  .ltth .ltth-dash-panel summary small { display: none; }
  .ltth .ltth-dash-bars { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .ltth .ltth-modes { grid-template-columns: 1fr; }
  .ltth .ltth-learn-grid { grid-template-columns: 1fr; }
  .ltth .ltth-run-coach { grid-template-columns: 1fr; }
  .ltth .ltth-run-workbench { grid-template-columns: 1fr; }
  .ltth .ltth-score-coach { grid-template-columns: 1fr; }
  .ltth .ltth-score-ring { width: 78px; height: 78px; }
}
@media (prefers-reduced-motion: reduce) { .ltth * { animation: none !important; transition: none !important; } }