/* ═══════════════════════════════════════════════════════════════
   kiem-tra-trinh-do.css — Bài kiểm tra trình độ đầu vào (tiền tố kt-)
═══════════════════════════════════════════════════════════════ */
:root {
  --kt-violet: #7c3aed;
  --kt-green: #10b981;
  --kt-orange: #f97316;
  --kt-gold-deep: #c98500;
  --kt-card-glow: 0 18px 50px rgba(29, 111, 242, .10);
  --kt-soft-blue: #eef4ff;
  --kt-soft-violet: #f4efff;
}
:root[data-theme="dark"] {
  --kt-card-glow: 0 18px 50px rgba(0, 0, 0, .35);
  --kt-soft-blue: rgba(29, 111, 242, .14);
  --kt-soft-violet: rgba(124, 58, 237, .16);
}

.kt-body { position: relative; overflow-x: clip; min-height: 100vh; }
.kt-bg { position: absolute; inset: 0; pointer-events: none; overflow: hidden; z-index: 0; }
.kt-blob { position: absolute; border-radius: 50%; filter: blur(70px); opacity: .22; animation: kt-drift 14s ease-in-out infinite; }
.kt-blob-a { width: 380px; height: 380px; background: var(--primary); top: 40px; left: -120px; }
.kt-blob-b { width: 320px; height: 320px; background: var(--gold); top: 260px; right: -100px; animation-direction: reverse; opacity: .18; }
@keyframes kt-drift { 0%, 100% { transform: translate(0, 0); } 50% { transform: translate(40px, -30px); } }

.kt-page { position: relative; z-index: 1; max-width: 980px; margin: 0 auto; padding: 8px 16px 64px; }
.kt-view { display: flex; flex-direction: column; gap: 20px; animation: kt-view-in .45s cubic-bezier(.22, 1, .36, 1); }
@keyframes kt-view-in { from { opacity: 0; transform: translateY(14px); } to { opacity: 1; transform: none; } }
.kt-rise { opacity: 0; animation: kt-view-in .55s cubic-bezier(.22, 1, .36, 1) forwards; animation-delay: var(--d, 0s); }

.kt-ico { width: 18px; height: 18px; flex-shrink: 0; }
.kt-loading { display: flex; align-items: center; justify-content: center; gap: 12px; padding: 80px 0; color: var(--text-2); font-weight: 600; }
.kt-spinner { width: 18px; height: 18px; border-radius: 50%; border: 2.5px solid currentColor; border-right-color: transparent; animation: kt-spin .8s linear infinite; display: inline-block; flex-shrink: 0; }
@keyframes kt-spin { to { transform: rotate(360deg); } }

.kt-card {
  background: var(--bg-card); border: 1px solid var(--border); border-radius: 22px;
  padding: 28px; box-shadow: var(--kt-card-glow);
}
.kt-card-title { display: flex; align-items: center; gap: 9px; margin: 0 0 18px; font-size: 1.02rem; font-weight: 800; color: var(--text); }
.kt-card-title .kt-ico { color: var(--primary); }

.kt-eyebrow {
  display: inline-flex; align-items: center; gap: 7px; align-self: flex-start;
  padding: 6px 13px; border-radius: 999px; background: var(--primary-light); color: var(--primary);
  font-size: .76rem; font-weight: 800; letter-spacing: .04em; text-transform: uppercase;
}
.kt-eyebrow .kt-ico { width: 15px; height: 15px; }

.kt-actions { display: flex; flex-wrap: wrap; gap: 12px; }
.kt-actions-center { justify-content: center; }
.kt-btn-lg { padding: 15px 30px; font-size: 1rem; border-radius: 16px; }
.btn .kt-ico { width: 18px; height: 18px; transition: transform .2s ease; }
.btn-primary:hover .kt-ico { transform: translateX(3px); }
.btn:disabled { opacity: .45; cursor: not-allowed; transform: none !important; box-shadow: none; }
.kt-link { background: none; border: none; padding: 4px 2px; color: var(--primary); font: inherit; font-weight: 700; font-size: .86rem; cursor: pointer; text-decoration: underline; text-underline-offset: 3px; }

/* ── Màn chào ── */
.kt-hero { display: grid; grid-template-columns: 1.15fr .85fr; gap: 32px; align-items: center; padding: 18px 0 6px; }
.kt-hero-text { display: flex; flex-direction: column; gap: 18px; }
.kt-hero-title { margin: 0; font-size: clamp(1.8rem, 4.2vw, 2.7rem); line-height: 1.22; font-weight: 900; letter-spacing: -.02em; color: var(--text); }
.kt-hl { background: linear-gradient(100deg, var(--primary) 10%, var(--primary-dark) 55%, var(--kt-violet)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.kt-hero-sub { margin: 0; font-size: 1.05rem; line-height: 1.75; color: var(--text-2); max-width: 52ch; }
.kt-hero-sub b { color: var(--text); }
.kt-meta { display: flex; flex-wrap: wrap; gap: 8px 18px; color: var(--text-2); font-size: .88rem; font-weight: 600; }
.kt-meta span { display: inline-flex; align-items: center; gap: 7px; }
.kt-meta .kt-ico { color: var(--primary); width: 17px; height: 17px; }
.kt-hero-visual {
  position: relative; padding: 34px 24px 26px; border-radius: 28px;
  background: radial-gradient(120% 120% at 0% 0%, var(--kt-soft-blue), transparent 60%), radial-gradient(120% 120% at 100% 100%, var(--kt-soft-violet), transparent 60%), var(--bg-card);
  border: 1px solid var(--border); box-shadow: var(--kt-card-glow);
  animation: kt-float 6s ease-in-out infinite;
}
@keyframes kt-float { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-8px); } }
.kt-deco-chip {
  position: absolute; display: inline-flex; align-items: center; gap: 6px; padding: 8px 13px; border-radius: 12px;
  background: var(--bg-card); border: 1px solid var(--border); box-shadow: var(--shadow-md);
  font-size: .8rem; font-weight: 800; color: var(--text);
}
.kt-deco-chip .kt-ico { width: 16px; height: 16px; }
.kt-deco-1 { top: -14px; left: 18px; color: var(--primary); animation: kt-float 5s ease-in-out infinite .6s; }
.kt-deco-2 { bottom: -14px; right: 18px; color: var(--kt-violet); animation: kt-float 5.5s ease-in-out infinite 1.2s; }

.kt-how { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.kt-how-card {
  position: relative; display: flex; flex-direction: column; gap: 8px; padding: 22px 20px 20px;
  background: var(--bg-card); border: 1px solid var(--border); border-radius: 18px; box-shadow: var(--shadow-sm);
  transition: transform .2s ease, box-shadow .2s ease;
}
.kt-how-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); }
.kt-how-card b { font-size: 1rem; color: var(--text); }
.kt-how-card p { margin: 0; font-size: .87rem; line-height: 1.6; color: var(--text-2); }
.kt-how-no { position: absolute; top: 14px; right: 16px; font-size: 1.9rem; font-weight: 900; color: var(--border); line-height: 1; }
.kt-how-icon { width: 42px; height: 42px; border-radius: 13px; display: flex; align-items: center; justify-content: center; color: #fff; margin-bottom: 4px; }
.kt-how-card:nth-child(1) .kt-how-icon { background: linear-gradient(135deg, #4d94ff, var(--primary-dark)); box-shadow: 0 6px 14px rgba(29, 111, 242, .3); }
.kt-how-card:nth-child(2) .kt-how-icon { background: linear-gradient(135deg, #ffd75e, var(--kt-gold-deep)); box-shadow: 0 6px 14px rgba(201, 133, 0, .3); }
.kt-how-card:nth-child(3) .kt-how-icon { background: linear-gradient(135deg, #a78bfa, var(--kt-violet)); box-shadow: 0 6px 14px rgba(124, 58, 237, .3); }
.kt-how-icon .kt-ico { width: 21px; height: 21px; }

.kt-last { display: flex; align-items: center; gap: 18px; padding: 18px 22px; }
.kt-last-score { display: flex; flex-direction: column; align-items: center; justify-content: center; min-width: 92px; padding: 10px 12px; border-radius: 16px; background: var(--primary-light); color: var(--primary); }
.kt-last-score b { font-size: 1.7rem; font-weight: 900; line-height: 1.1; }
.kt-last-score span { font-size: .68rem; font-weight: 700; text-transform: uppercase; letter-spacing: .03em; }
.kt-last-text { flex: 1; min-width: 0; display: flex; flex-direction: column; gap: 3px; }
.kt-last-label { font-size: .78rem; font-weight: 700; color: var(--text-3); text-transform: uppercase; letter-spacing: .03em; }
.kt-last-text strong { color: var(--text); font-size: .98rem; }
.kt-last-hint { font-size: .84rem; color: var(--text-2); }

.kt-empty { text-align: center; padding: 48px 28px; display: flex; flex-direction: column; align-items: center; gap: 12px; max-width: 620px; margin: 24px auto 0; }
.kt-empty h1 { margin: 0; font-size: 1.4rem; color: var(--text); }
.kt-empty p { margin: 0 0 8px; color: var(--text-2); line-height: 1.7; }
.kt-empty-icon { width: 60px; height: 60px; border-radius: 18px; display: flex; align-items: center; justify-content: center; background: var(--primary-light); color: var(--primary); }
.kt-empty-icon .kt-ico { width: 28px; height: 28px; }

/* ── Stepper ── */
.kt-stepper { list-style: none; margin: 4px auto 0; padding: 0; display: flex; align-items: center; gap: 6px; width: 100%; max-width: 640px; }
.kt-stepper li { flex: 1; display: flex; align-items: center; gap: 8px; color: var(--text-3); font-size: .8rem; font-weight: 700; position: relative; }
.kt-step-label { white-space: nowrap; }
.kt-stepper li:not(:last-child)::after { content: ''; flex: 1; height: 2px; border-radius: 2px; background: var(--border); margin-right: 6px; transition: background .3s ease; }
.kt-stepper li.is-done:not(:last-child)::after { background: var(--primary); }
.kt-step-dot {
  width: 30px; height: 30px; border-radius: 50%; flex-shrink: 0; display: flex; align-items: center; justify-content: center;
  background: var(--bg-card); border: 2px solid var(--border); color: var(--text-3); font-weight: 800; font-size: .82rem;
  transition: all .3s ease;
}
.kt-step-dot .kt-ico { width: 15px; height: 15px; stroke-width: 3; }
.kt-stepper li.is-done .kt-step-dot { background: var(--primary); border-color: var(--primary); color: #fff; }
.kt-stepper li.is-active { color: var(--text); }
.kt-stepper li.is-active .kt-step-dot { border-color: var(--primary); color: var(--primary); box-shadow: 0 0 0 5px var(--primary-light); animation: kt-pulse 2s ease-in-out infinite; }
.kt-stepper li.is-done { color: var(--text-2); }
@keyframes kt-pulse { 0%, 100% { box-shadow: 0 0 0 5px var(--primary-light); } 50% { box-shadow: 0 0 0 9px var(--primary-light); } }

/* ── Câu hỏi chào hỏi ── */
.kt-q { max-width: 720px; width: 100%; margin: 0 auto; display: flex; flex-direction: column; gap: 14px; padding: 34px; }
.kt-q-icon { width: 54px; height: 54px; border-radius: 16px; display: flex; align-items: center; justify-content: center; color: #fff; }
.kt-q-icon .kt-ico { width: 26px; height: 26px; }
.kt-q-icon.blue { background: linear-gradient(135deg, #4d94ff, var(--primary-dark)); box-shadow: 0 8px 18px rgba(29, 111, 242, .3); }
.kt-q-icon.violet { background: linear-gradient(135deg, #a78bfa, var(--kt-violet)); box-shadow: 0 8px 18px rgba(124, 58, 237, .3); }
.kt-q-title { margin: 0; font-size: clamp(1.3rem, 3vw, 1.6rem); line-height: 1.35; font-weight: 900; color: var(--text); }
.kt-q-sub { margin: -4px 0 6px; color: var(--text-2); line-height: 1.65; font-size: .95rem; }

.kt-goal-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.kt-goal {
  display: flex; flex-direction: column; align-items: flex-start; gap: 4px; padding: 16px 16px 14px; text-align: left;
  background: var(--bg-card); border: 2px solid var(--border); border-radius: 16px; cursor: pointer; font-family: var(--font);
  transition: border-color .18s ease, transform .18s ease, box-shadow .18s ease, background .18s ease;
  animation: kt-view-in .4s cubic-bezier(.22, 1, .36, 1) both; animation-delay: var(--d, 0s);
}
.kt-goal b { font-size: 1.55rem; font-weight: 900; color: var(--text); line-height: 1.1; }
.kt-goal span { font-size: .78rem; color: var(--text-2); font-weight: 600; line-height: 1.4; }
.kt-goal:hover { border-color: var(--primary-mid); transform: translateY(-2px); box-shadow: var(--shadow-md); }
.kt-goal.is-on { border-color: var(--primary); background: var(--primary-light); box-shadow: 0 8px 22px rgba(29, 111, 242, .2); }
.kt-goal.is-on b { color: var(--primary); }

.kt-goal-custom { display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; padding: 12px 16px; border-radius: 14px; background: var(--bg); border: 1px dashed var(--border-2); }
.kt-goal-custom > span:first-child { font-size: .9rem; font-weight: 700; color: var(--text-2); }
.kt-input-wrap { display: inline-flex; align-items: center; gap: 8px; }
.kt-input-wrap input {
  width: 120px; padding: 10px 12px; border-radius: 12px; border: 2px solid var(--border); background: var(--bg-card);
  color: var(--text); font: inherit; font-weight: 800; font-size: 1.05rem; text-align: center; outline: none; transition: border-color .15s ease;
}
.kt-input-wrap input:focus { border-color: var(--primary); }
.kt-input-wrap em { font-style: normal; font-weight: 700; color: var(--text-2); font-size: .9rem; }
.kt-err { margin: 0; color: var(--danger); font-size: .86rem; font-weight: 700; }

.kt-date-field {
  display: flex; align-items: center; gap: 12px; padding: 6px 8px 6px 18px; border-radius: 16px; border: 2px solid var(--border);
  background: var(--bg-card); transition: border-color .15s ease, box-shadow .15s ease; max-width: 360px;
}
.kt-date-field:focus-within { border-color: var(--kt-violet); box-shadow: 0 0 0 4px var(--kt-soft-violet); }
.kt-date-field .kt-ico { color: var(--kt-violet); width: 22px; height: 22px; }
.kt-date-field input { flex: 1; min-width: 0; border: none; outline: none; background: transparent; color: var(--text); font: inherit; font-size: 1.1rem; font-weight: 800; padding: 12px 0; color-scheme: light; }
:root[data-theme="dark"] .kt-date-field input { color-scheme: dark; }
.kt-date-hint { margin: 0; min-height: 1.5em; color: var(--text-2); font-size: .93rem; line-height: 1.6; }
.kt-date-hint b { color: var(--kt-violet); }
.kt-date-bad { color: var(--danger); font-weight: 700; }

.kt-nav { display: flex; justify-content: space-between; align-items: center; gap: 12px; margin-top: 10px; padding-top: 18px; border-top: 1px solid var(--border); }

/* ── Sẵn sàng ── */
.kt-ready { max-width: 820px; width: 100%; margin: 0 auto; display: flex; flex-direction: column; gap: 18px; padding: 34px; }
.kt-summary { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; }
.kt-chip { display: inline-flex; align-items: center; gap: 7px; padding: 8px 14px; border-radius: 999px; font-size: .88rem; font-weight: 600; }
.kt-chip .kt-ico { width: 16px; height: 16px; }
.kt-chip b { font-weight: 900; }
.kt-chip.blue { background: var(--primary-light); color: var(--primary); }
.kt-chip.violet { background: var(--kt-soft-violet); color: var(--kt-violet); }
.kt-parts { display: grid; grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: 12px; }
.kt-part-tile { display: flex; flex-direction: column; gap: 4px; padding: 14px 16px; border-radius: 16px; border: 1px solid var(--border); background: var(--bg); }
.kt-part-tile b { font-size: .92rem; color: var(--text); }
.kt-part-tile > span:last-child { font-size: .82rem; color: var(--text-2); font-weight: 600; }
.kt-part-kind { display: inline-flex; align-items: center; gap: 5px; font-size: .7rem; font-weight: 800; text-transform: uppercase; letter-spacing: .05em; }
.kt-part-kind .kt-ico { width: 14px; height: 14px; }
.kt-part-tile.is-listen .kt-part-kind { color: var(--primary); }
.kt-part-tile.is-read .kt-part-kind { color: var(--kt-violet); }
.kt-part-tile.is-listen { background: linear-gradient(160deg, var(--kt-soft-blue), transparent 70%), var(--bg-card); }
.kt-part-tile.is-read { background: linear-gradient(160deg, var(--kt-soft-violet), transparent 70%), var(--bg-card); }
.kt-total-line { margin: -4px 0 0; color: var(--text-2); font-size: .9rem; }
.kt-total-line b { color: var(--text); }
.kt-tips { list-style: none; margin: 0; padding: 16px 18px; border-radius: 16px; background: var(--bg); display: flex; flex-direction: column; gap: 12px; }
.kt-tips li { display: flex; gap: 11px; align-items: flex-start; color: var(--text-2); font-size: .92rem; line-height: 1.55; }
.kt-tips .kt-ico { color: var(--kt-green); margin-top: 2px; }

/* ── Nộp xong, chờ đăng nhập ── */
.kt-gate { max-width: 600px; margin: 30px auto 0; text-align: center; display: flex; flex-direction: column; align-items: center; gap: 14px; padding: 42px 30px; }
.kt-gate h1 { margin: 0; font-size: clamp(1.45rem, 3.4vw, 1.9rem); font-weight: 900; color: var(--text); }
.kt-gate p { margin: 0; color: var(--text-2); line-height: 1.7; }
.kt-gate p b { color: var(--text); }
.kt-gate-badge {
  width: 84px; height: 84px; border-radius: 26px; display: flex; align-items: center; justify-content: center; color: #fff;
  background: linear-gradient(135deg, #ffd75e, var(--kt-gold-deep)); box-shadow: 0 14px 30px rgba(201, 133, 0, .35);
  animation: kt-pop .7s cubic-bezier(.34, 1.56, .64, 1) both;
}
.kt-gate-badge .kt-ico { width: 40px; height: 40px; }
@keyframes kt-pop { from { transform: scale(.4) rotate(-12deg); opacity: 0; } to { transform: none; opacity: 1; } }
.kt-google {
  display: inline-flex; align-items: center; justify-content: center; gap: 12px; margin-top: 6px; padding: 14px 24px; border-radius: 16px;
  background: var(--bg-card); border: 2px solid var(--border); color: var(--text); font: inherit; font-weight: 800; font-size: .98rem; cursor: pointer;
  box-shadow: var(--shadow-md); transition: transform .15s ease, border-color .15s ease, box-shadow .15s ease;
}
.kt-google svg { width: 22px; height: 22px; }
.kt-google:hover { transform: translateY(-2px); border-color: var(--primary); box-shadow: var(--shadow-blue); }
.kt-google:disabled { opacity: .6; cursor: wait; transform: none; }
.kt-gate-note { display: inline-flex; align-items: center; gap: 7px; font-size: .84rem !important; color: var(--text-3) !important; }
.kt-gate-note .kt-ico { width: 16px; height: 16px; color: var(--kt-green); }

/* ── Kết quả ── */
.kt-res-hero { display: grid; grid-template-columns: 330px 1fr; gap: 30px; align-items: center; padding: 30px 32px; position: relative; overflow: hidden; }
.kt-res-hero::before { content: ''; position: absolute; inset: 0; pointer-events: none; background: radial-gradient(90% 120% at 0% 0%, var(--kt-soft-blue), transparent 55%); }
.kt-res-hero > * { position: relative; }
.kt-res-gauge { position: relative; }
.kt-res-center { position: absolute; left: 0; right: 0; bottom: 14%; display: flex; flex-direction: column; align-items: center; }
.kt-score-num { font-size: clamp(2.6rem, 6vw, 3.3rem); font-weight: 900; line-height: 1; color: var(--text); letter-spacing: -.02em; font-variant-numeric: tabular-nums; }
.kt-score-cap { font-size: .74rem; font-weight: 800; color: var(--text-3); text-transform: uppercase; letter-spacing: .06em; margin-top: 4px; }
.kt-res-text { display: flex; flex-direction: column; gap: 10px; }
.kt-res-date { font-size: .78rem; font-weight: 800; color: var(--text-3); text-transform: uppercase; letter-spacing: .05em; }
.kt-res-text h1 { margin: 0; font-size: clamp(1.4rem, 3.2vw, 1.9rem); font-weight: 900; color: var(--text); line-height: 1.3; }
.kt-level { padding: 2px 12px; border-radius: 12px; white-space: nowrap; }
.tone-orange .kt-level { background: rgba(249, 115, 22, .14); color: var(--kt-orange); }
.tone-gold .kt-level { background: rgba(255, 192, 0, .18); color: var(--kt-gold-deep); }
.tone-blue .kt-level { background: var(--primary-light); color: var(--primary); }
.tone-green .kt-level { background: rgba(16, 185, 129, .15); color: #059669; }
.tone-violet .kt-level { background: var(--kt-soft-violet); color: var(--kt-violet); }
:root[data-theme="dark"] .tone-gold .kt-level { color: var(--gold); }
:root[data-theme="dark"] .tone-green .kt-level { color: #34d399; }
.kt-res-text p { margin: 0; color: var(--text-2); line-height: 1.65; }
.kt-res-text p b { color: var(--text); }
.kt-skills { display: flex; flex-direction: column; gap: 10px; margin-top: 4px; }
.kt-skill { display: grid; grid-template-columns: 76px 1fr 48px; align-items: center; gap: 12px; }
.kt-skill > span { display: inline-flex; align-items: center; gap: 6px; font-size: .86rem; font-weight: 700; color: var(--text-2); }
.kt-skill > span .kt-ico { width: 16px; height: 16px; }
.kt-skill > b { text-align: right; font-weight: 900; color: var(--text); font-variant-numeric: tabular-nums; }

.kt-gauge { width: 100%; height: auto; display: block; overflow: visible; }
.kt-gauge path { fill: none; stroke-linecap: round; }
.kt-gauge-track { stroke: var(--border); stroke-width: 16; }
.kt-gauge-range { stroke: var(--primary); stroke-opacity: .45; stroke-width: 5; }
.kt-gauge-fill { stroke-width: 16; }
.kt-gauge-dot { fill: var(--bg-card); stroke: var(--primary); stroke-width: 4; filter: drop-shadow(0 2px 5px rgba(29, 111, 242, .45)); }
.kt-gauge-min, .kt-gauge-max { font-size: 10px; font-weight: 700; fill: var(--text-3); text-anchor: middle; font-family: var(--font); }

.kt-bar { height: 10px; border-radius: 999px; background: var(--border); overflow: hidden; }
.kt-bar i { display: block; height: 100%; width: 0; border-radius: inherit; transition: width 1.2s cubic-bezier(.22, 1, .36, 1) .3s; }
.kt-bar i.is-in { width: var(--w); }
.bar-listen { background: linear-gradient(90deg, #4d94ff, var(--primary)); }
.bar-read { background: linear-gradient(90deg, #a78bfa, var(--kt-violet)); }
.bar-good { background: linear-gradient(90deg, #34d399, #059669); }
.bar-mid { background: linear-gradient(90deg, #ffd75e, var(--kt-gold-deep)); }
.bar-weak { background: linear-gradient(90deg, #fb923c, #ea580c); }

.kt-res-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; align-items: start; }
.kt-res-grid:empty { display: none; }
.kt-res-grid > .kt-card:only-child { grid-column: 1 / -1; }

.kt-track { position: relative; height: 92px; margin: 8px 12px 6px; }
.kt-track-line { position: absolute; left: 0; right: 0; top: 56px; height: 8px; border-radius: 999px; background: var(--border); }
.kt-track-gap {
  position: absolute; top: 56px; height: 8px; border-radius: 999px;
  background: repeating-linear-gradient(45deg, var(--gold), var(--gold) 6px, #ffd75e 6px, #ffd75e 12px);
  animation: kt-stripes 1.2s linear infinite; background-size: 17px 17px;
}
@keyframes kt-stripes { to { background-position: 17px 0; } }
.kt-track-pin { position: absolute; top: 0; transform: translateX(-50%); display: flex; flex-direction: column; align-items: center; }
.kt-track-pin span { display: flex; flex-direction: column; align-items: center; padding: 4px 10px; border-radius: 10px; font-size: .68rem; font-weight: 800; text-transform: uppercase; letter-spacing: .03em; white-space: nowrap; }
.kt-track-pin span b { font-size: .98rem; letter-spacing: 0; }
.kt-track-pin::after { content: ''; width: 16px; height: 16px; border-radius: 50%; margin-top: 7px; border: 3px solid var(--bg-card); }
.kt-track-pin.is-now span { background: var(--primary-light); color: var(--primary); }
.kt-track-pin.is-now::after { background: var(--primary); box-shadow: 0 0 0 3px rgba(29, 111, 242, .25); }
.kt-track-pin.is-goal span { background: rgba(255, 192, 0, .2); color: var(--kt-gold-deep); }
:root[data-theme="dark"] .kt-track-pin.is-goal span { color: var(--gold); }
.kt-track-pin.is-goal::after { background: var(--gold); box-shadow: 0 0 0 3px rgba(255, 192, 0, .3); }
.kt-track-pin.is-below { top: 52px; flex-direction: column-reverse; }
.kt-track-pin.is-below::after { margin: 0 0 7px; }
.kt-track:has(.is-below) { height: 116px; }
.kt-goal-stats { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-top: 12px; }
.kt-goal-stat { display: flex; flex-direction: column; gap: 4px; padding: 14px 16px; border-radius: 16px; background: var(--bg); }
.kt-goal-stat span { font-size: .74rem; font-weight: 800; color: var(--text-3); text-transform: uppercase; letter-spacing: .03em; }
.kt-goal-stat b { font-size: 1.7rem; font-weight: 900; line-height: 1.1; font-variant-numeric: tabular-nums; }
.kt-goal-stat b small { font-size: .85rem; font-weight: 700; color: var(--text-2); }
.kt-goal-stat.is-gap b { color: var(--kt-gold-deep); }
.kt-goal-stat.is-days b { color: var(--kt-violet); }
:root[data-theme="dark"] .kt-goal-stat.is-gap b { color: var(--gold); }
:root[data-theme="dark"] .kt-goal-stat.is-days b { color: #a78bfa; }
.kt-goal-date { display: block; margin-top: 4px; font-size: .82rem; color: var(--text-3); font-weight: 600; }
.kt-goal-text { margin: 14px 0 0; color: var(--text-2); line-height: 1.65; font-size: .9rem; }
.kt-goal-text b { color: var(--text); }

.kt-part-rows { display: flex; flex-direction: column; gap: 14px; }
.kt-part-row { display: flex; flex-direction: column; gap: 6px; }
.kt-part-row-head { display: flex; justify-content: space-between; align-items: center; gap: 8px; font-size: .88rem; font-weight: 700; color: var(--text); }
.kt-part-row-head em { font-style: normal; font-size: .7rem; font-weight: 800; padding: 3px 9px; border-radius: 999px; white-space: nowrap; }
.tag-good { background: rgba(16, 185, 129, .15); color: #059669; }
.tag-mid { background: rgba(255, 192, 0, .2); color: var(--kt-gold-deep); }
.tag-weak { background: rgba(249, 115, 22, .15); color: #ea580c; }
:root[data-theme="dark"] .tag-good { color: #34d399; }
:root[data-theme="dark"] .tag-mid { color: var(--gold); }
:root[data-theme="dark"] .tag-weak { color: #fb923c; }
.kt-part-row-num { font-size: .78rem; color: var(--text-3); font-weight: 600; }

.kt-insight ul { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 12px; }
.kt-insight li { display: flex; gap: 12px; align-items: flex-start; padding: 12px 14px; border-radius: 14px; background: var(--bg); color: var(--text-2); line-height: 1.6; font-size: .93rem; }
.kt-insight li b { color: var(--text); }
.kt-insight li .kt-ico { color: var(--primary); margin-top: 2px; }

.kt-roadmap {
  display: flex; flex-direction: column; gap: 16px; position: relative; overflow: hidden;
  background: radial-gradient(120% 140% at 100% 0%, var(--kt-soft-violet), transparent 55%), radial-gradient(120% 140% at 0% 100%, var(--kt-soft-blue), transparent 55%), var(--bg-card);
  border: 1.5px solid color-mix(in srgb, var(--primary) 35%, var(--border));
}
.kt-roadmap-body { display: flex; gap: 18px; align-items: center; }
.kt-roadmap-days {
  flex-shrink: 0; width: 86px; height: 86px; border-radius: 22px; display: flex; flex-direction: column; align-items: center; justify-content: center; color: #fff;
  background: linear-gradient(135deg, var(--primary), var(--kt-violet)); box-shadow: 0 10px 24px rgba(29, 111, 242, .3);
}
.kt-roadmap-days b { font-size: 1.9rem; font-weight: 900; line-height: 1; }
.kt-roadmap-days span { font-size: .72rem; font-weight: 700; opacity: .9; }
.kt-roadmap-text { display: flex; flex-direction: column; gap: 6px; min-width: 0; }
.kt-roadmap-text h3 { margin: 0; font-size: 1.2rem; font-weight: 900; color: var(--text); line-height: 1.35; }
.kt-roadmap-text p { margin: 0; color: var(--text-2); line-height: 1.6; font-size: .92rem; }
.kt-roadmap-why { font-size: .84rem; font-weight: 700; color: var(--primary); }
.kt-roadmap-plain { margin: 0; font-size: 1.1rem; color: var(--text); }

.kt-foot { display: flex; justify-content: center; flex-wrap: wrap; gap: 10px; }
.kt-foot .kt-ico { width: 16px; height: 16px; }
.kt-disclaimer { margin: -6px 0 0; text-align: center; font-size: .8rem; color: var(--text-3); line-height: 1.6; }
.kt-warn { margin: -6px 0 0; padding: 10px 14px; border-radius: 12px; background: var(--warning-light); color: var(--price-sale); font-size: .86rem; font-weight: 600; }

/* ── Pháo giấy ── */
.kt-confetti { position: fixed; inset: 0; pointer-events: none; z-index: 2000; overflow: hidden; }
.kt-confetti i { position: absolute; top: -16px; width: 9px; height: 14px; border-radius: 2px; animation: kt-fall linear forwards; }
@keyframes kt-fall {
  0% { transform: translate(0, 0) rotate(0); opacity: 1; }
  100% { transform: translate(var(--x), 105vh) rotate(var(--r)); opacity: .9; }
}

/* ── Điện thoại / máy tính bảng ── */
@media (max-width: 860px) {
  .kt-hero { grid-template-columns: 1fr; gap: 34px; text-align: center; }
  .kt-hero-text { align-items: center; }
  .kt-eyebrow { align-self: center; }
  .kt-actions { justify-content: center; }
  .kt-meta { justify-content: center; }
  .kt-hero-visual { max-width: 380px; width: 100%; margin: 0 auto; }
  .kt-how { grid-template-columns: 1fr; }
  .kt-res-hero { grid-template-columns: 1fr; gap: 18px; text-align: center; padding: 26px 20px; }
  .kt-res-gauge { max-width: 300px; margin: 0 auto; width: 100%; }
  .kt-skills { text-align: left; }
  .kt-res-grid { grid-template-columns: 1fr; }
}
@media (max-width: 600px) {
  .kt-page { padding: 0 16px 48px; }
  .kt-card { padding: 22px 18px; border-radius: 18px; }
  .kt-q, .kt-ready { padding: 24px 18px; }
  .kt-goal-grid { grid-template-columns: repeat(2, 1fr); gap: 10px; }
  .kt-goal { padding: 13px 13px 12px; }
  .kt-goal b { font-size: 1.35rem; }
  .kt-goal-custom { flex-direction: column; align-items: stretch; }
  .kt-input-wrap input { flex: 1; width: auto; }
  .kt-date-field { max-width: none; }
  .kt-stepper { gap: 4px; }
  .kt-stepper .kt-step-label { display: none; }
  .kt-stepper li.is-active .kt-step-label { display: inline; }
  .kt-step-dot { width: 26px; height: 26px; font-size: .74rem; }
  .kt-nav { flex-direction: column-reverse; align-items: stretch; }
  .kt-nav .btn { width: 100%; }
  .kt-last { flex-wrap: wrap; }
  .kt-last .btn { width: 100%; }
  .kt-roadmap-body { flex-direction: column; align-items: flex-start; }
  .kt-roadmap-days { width: 72px; height: 72px; flex-direction: row; gap: 5px; width: auto; padding: 0 16px; height: 48px; border-radius: 14px; }
  .kt-roadmap-days b { font-size: 1.35rem; }
  .kt-roadmap .kt-actions .btn { width: 100%; }
  .kt-parts { grid-template-columns: repeat(2, 1fr); }
  .kt-track { margin: 8px 20px 6px; }
  .kt-gate { padding: 34px 20px; margin-top: 10px; }
  .kt-google { width: 100%; }
  .kt-btn-lg { width: 100%; }
}

@media (prefers-reduced-motion: reduce) {
  .kt-view, .kt-rise, .kt-goal, .kt-hero-visual, .kt-deco-chip, .kt-blob, .kt-gate-badge, .kt-track-gap, .kt-stepper li.is-active .kt-step-dot { animation: none !important; opacity: 1 !important; }
  .kt-bar i { transition: none; }
}

/* ── Trang kết quả: MỨC TRÌNH ĐỘ là thông tin chính, điểm chỉ là khoảng tham khảo (2026-09-24) ── */
.kt-level-big { font-size: clamp(1.7rem, 4.6vw, 2.15rem); font-weight: 900; line-height: 1.05; letter-spacing: -.01em; text-align: center; }
.tone-orange .kt-level-big { color: var(--kt-orange); }
.tone-gold .kt-level-big { color: var(--kt-gold-deep); }
.tone-blue .kt-level-big { color: var(--primary); }
.tone-green .kt-level-big { color: #059669; }
.tone-violet .kt-level-big { color: var(--kt-violet); }
:root[data-theme="dark"] .tone-gold .kt-level-big { color: var(--gold); }
:root[data-theme="dark"] .tone-green .kt-level-big { color: #34d399; }
.kt-level-desc { margin: -2px 0 2px !important; font-size: .95rem; }

.kt-ladder { list-style: none; margin: 4px 0 6px; padding: 0; display: grid; grid-template-columns: repeat(5, 1fr); gap: 6px; }
.kt-ladder li { position: relative; display: flex; flex-direction: column; align-items: center; gap: 2px; padding: 9px 4px 8px; border-radius: 12px;
  background: var(--bg); border: 1.5px solid transparent; text-align: center; transition: transform .2s ease; }
.kt-ladder li::before { content: ''; position: absolute; top: 0; left: 10px; right: 10px; height: 3px; border-radius: 0 0 3px 3px; background: var(--border); }
.kt-ladder li b { font-size: .74rem; font-weight: 800; color: var(--text-2); line-height: 1.25; }
.kt-ladder li span { font-size: .66rem; font-weight: 700; color: var(--text-3); white-space: nowrap; }
.kt-ladder li.is-on { transform: translateY(-3px); box-shadow: 0 8px 18px rgba(15,23,42,.08); background: var(--bg-card); }
.kt-ladder li.is-on b { color: var(--text); }
.kt-ladder li.is-on::before { height: 4px; }
.kt-ladder li.is-on.tone-orange { border-color: var(--kt-orange); } .kt-ladder li.is-on.tone-orange::before { background: var(--kt-orange); }
.kt-ladder li.is-on.tone-gold { border-color: var(--gold); } .kt-ladder li.is-on.tone-gold::before { background: var(--gold); }
.kt-ladder li.is-on.tone-blue { border-color: var(--primary); } .kt-ladder li.is-on.tone-blue::before { background: var(--primary); }
.kt-ladder li.is-on.tone-green { border-color: #10b981; } .kt-ladder li.is-on.tone-green::before { background: #10b981; }
.kt-ladder li.is-on.tone-violet { border-color: var(--kt-violet); } .kt-ladder li.is-on.tone-violet::before { background: var(--kt-violet); }

.kt-skill { grid-template-columns: 76px 1fr; }
.kt-score-note { display: flex; align-items: flex-start; gap: 8px; margin: 4px 0 0 !important; padding: 10px 12px; border-radius: 12px; background: var(--bg);
  font-size: .86rem !important; color: var(--text-2) !important; line-height: 1.5 !important; text-align: left; }
.kt-score-note .kt-ico { width: 16px; height: 16px; color: var(--primary); margin-top: 2px; }
.kt-score-note b { color: var(--text); }
@media (max-width: 600px) {
  .kt-ladder { gap: 4px; }
  .kt-ladder li { padding: 8px 2px 7px; }
  .kt-ladder li b { font-size: .64rem; }
  .kt-ladder li span { font-size: .58rem; }
}