/* SpeakLab — Level Test
   Self-contained so it can't be broken by changes to style.css. */

:root {
  --lt-navy: #1e3a8a;
  --lt-blue: #3b82f6;
  --lt-ink: #0f172a;
  --lt-body: #475569;
  --lt-muted: #94a3b8;
  --lt-line: #e2e8f0;
  --lt-bg: #fcfcfc;
  --lt-card: #ffffff;
  --lt-green: #16a34a;
  --lt-red: #dc2626;
  --lt-amber: #f59e0b;
  --lt-radius: 20px;
  --lt-shadow: 0 4px 24px rgba(15, 23, 42, 0.06);
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
  font-family: 'Outfit', system-ui, -apple-system, sans-serif;
  color: var(--lt-ink);
  background-color: var(--lt-bg);
  background-image: radial-gradient(#e5e5e5 1.5px, transparent 1.5px);
  background-size: 20px 20px;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

/* ── Top bar ─────────────────────────────────────────────────────────── */
.lt-topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 20px;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--lt-line);
  position: sticky;
  top: 0;
  z-index: 50;
}
.lt-back {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--lt-body);
  text-decoration: none;
  font-size: 0.8rem;
  font-weight: 600;
  padding: 8px 10px;
  border-radius: 8px;
  transition: background 0.2s, color 0.2s;
}
.lt-back:hover { background: #f1f5f9; color: var(--lt-ink); }
.lt-brand {
  font-size: 1.1rem;
  font-weight: 800;
  letter-spacing: -0.02em;
}
.lt-topbar-tag {
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--lt-blue);
  background: #eff6ff;
  padding: 6px 10px;
  border-radius: 999px;
}

/* ── Layout ──────────────────────────────────────────────────────────── */
.lt-main {
  max-width: 760px;
  margin: 0 auto;
  padding: 32px 20px 80px;
}
.lt-screen { display: none; animation: lt-fade 0.4s ease both; }
.lt-screen.is-active { display: block; }

@keyframes lt-fade {
  from { opacity: 0; transform: translateY(12px); }
  to   { opacity: 1; transform: translateY(0); }
}

.lt-card {
  background: var(--lt-card);
  border: 1px solid var(--lt-line);
  border-radius: var(--lt-radius);
  box-shadow: var(--lt-shadow);
  padding: 32px;
}
.lt-card-center { text-align: center; padding: 56px 32px; }

@media (max-width: 560px) {
  .lt-main { padding: 20px 14px 60px; }
  .lt-card { padding: 22px 18px; border-radius: 16px; }
  .lt-card-center { padding: 40px 20px; }
}

/* ── Intro ───────────────────────────────────────────────────────────── */
.lt-eyebrow {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--lt-blue);
  background: #eff6ff;
  padding: 6px 12px;
  border-radius: 999px;
  margin-bottom: 16px;
}
.lt-title {
  font-size: clamp(1.9rem, 5vw, 2.8rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.03em;
  background: linear-gradient(135deg, var(--lt-navy) 0%, var(--lt-blue) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 14px;
}
.lt-lede {
  font-size: 1.05rem;
  line-height: 1.65;
  color: var(--lt-body);
  margin-bottom: 28px;
}

.lt-steps {
  display: grid;
  gap: 16px;
  padding: 22px;
  background: #f8fafc;
  border-radius: 14px;
  margin-bottom: 28px;
}
.lt-step { display: flex; gap: 14px; align-items: flex-start; }
.lt-step-num {
  flex: 0 0 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--lt-navy);
  color: #fff;
  font-size: 0.8rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
}
.lt-step h4 { font-size: 0.95rem; font-weight: 700; margin-bottom: 2px; }
.lt-step p { font-size: 0.88rem; color: var(--lt-body); line-height: 1.5; }

/* ── Forms ───────────────────────────────────────────────────────────── */
.lt-form { display: grid; gap: 18px; }
.lt-field { display: grid; gap: 6px; }
.lt-field label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--lt-ink);
}
.lt-optional { font-weight: 400; color: var(--lt-muted); }
.lt-field input {
  font-family: inherit;
  font-size: 1rem;
  padding: 13px 14px;
  border: 1px solid var(--lt-line);
  border-radius: 10px;
  background: #fff;
  color: var(--lt-ink);
  transition: border-color 0.2s, box-shadow 0.2s;
  min-height: 44px;
}
.lt-field input:focus {
  outline: none;
  border-color: var(--lt-blue);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15);
}
.lt-field input.has-error { border-color: var(--lt-red); }
.lt-error {
  font-size: 0.78rem;
  color: var(--lt-red);
  min-height: 0;
}
.lt-note {
  font-size: 0.8rem;
  color: var(--lt-muted);
  line-height: 1.5;
  text-align: center;
  margin-top: 4px;
}

/* ── Buttons ─────────────────────────────────────────────────────────── */
.lt-btn {
  font-family: inherit;
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  padding: 14px 26px;
  border-radius: 10px;
  border: 1px solid transparent;
  cursor: pointer;
  min-height: 46px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  text-decoration: none;
  transition: transform 0.15s, box-shadow 0.2s, background 0.2s, opacity 0.2s;
}
.lt-btn:disabled { opacity: 0.45; cursor: not-allowed; }
.lt-btn-primary {
  background: linear-gradient(135deg, var(--lt-navy), var(--lt-blue));
  color: #fff;
}
.lt-btn-primary:not(:disabled):hover {
  transform: translateY(-1px);
  box-shadow: 0 8px 22px rgba(30, 58, 138, 0.28);
}
.lt-btn-ghost {
  background: #fff;
  border-color: var(--lt-line);
  color: var(--lt-body);
}
.lt-btn-ghost:not(:disabled):hover { background: #f8fafc; color: var(--lt-ink); }
.lt-btn-block { width: 100%; }

/* ── Progress ────────────────────────────────────────────────────────── */
.lt-progress-wrap { margin-bottom: 18px; }
.lt-progress-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 8px;
  font-size: 0.78rem;
  color: var(--lt-muted);
  font-weight: 500;
}
.lt-section-tag {
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--lt-navy);
  font-size: 0.7rem;
}
.lt-progress {
  height: 6px;
  background: #e8edf5;
  border-radius: 999px;
  overflow: hidden;
}
.lt-progress-bar {
  height: 100%;
  width: 0%;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--lt-navy), var(--lt-blue));
  transition: width 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ── Grammar ─────────────────────────────────────────────────────────── */
.lt-question {
  font-size: clamp(1.15rem, 3.2vw, 1.45rem);
  font-weight: 600;
  line-height: 1.5;
  margin-bottom: 22px;
  letter-spacing: -0.01em;
}
.lt-options { display: grid; gap: 10px; margin-bottom: 24px; }
.lt-option {
  display: flex;
  align-items: center;
  gap: 12px;
  width: 100%;
  text-align: left;
  font-family: inherit;
  font-size: 1rem;
  color: var(--lt-ink);
  padding: 14px 16px;
  border: 1.5px solid var(--lt-line);
  border-radius: 12px;
  background: #fff;
  cursor: pointer;
  min-height: 52px;
  transition: border-color 0.15s, background 0.15s, transform 0.1s;
}
.lt-option:hover { border-color: #c7d2fe; background: #fbfcff; }
.lt-option:active { transform: scale(0.995); }
.lt-option.is-selected {
  border-color: var(--lt-blue);
  background: #eff6ff;
}
.lt-option-key {
  flex: 0 0 26px;
  height: 26px;
  border-radius: 6px;
  background: #f1f5f9;
  color: var(--lt-body);
  font-size: 0.75rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.15s, color 0.15s;
}
.lt-option.is-selected .lt-option-key { background: var(--lt-blue); color: #fff; }

.lt-nav {
  display: flex;
  gap: 12px;
  justify-content: space-between;
}
.lt-nav .lt-btn { flex: 1; }
.lt-hint-line {
  font-size: 0.8rem;
  color: var(--lt-muted);
  text-align: center;
  margin-top: 16px;
  line-height: 1.5;
}

/* ── Speaking ────────────────────────────────────────────────────────── */
.lt-prompt {
  font-size: clamp(1.15rem, 3.2vw, 1.4rem);
  font-weight: 600;
  line-height: 1.5;
  margin-bottom: 8px;
}
.lt-prompt-hint {
  font-size: 0.88rem;
  color: var(--lt-muted);
  margin-bottom: 22px;
  line-height: 1.5;
}

.lt-mic-zone {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 18px;
  background: #f8fafc;
  border-radius: 14px;
  margin-bottom: 18px;
}
.lt-mic {
  flex: 0 0 62px;
  height: 62px;
  border-radius: 50%;
  border: none;
  background: linear-gradient(135deg, var(--lt-navy), var(--lt-blue));
  color: #fff;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.15s, box-shadow 0.2s;
}
.lt-mic:hover { transform: scale(1.05); }
.lt-mic:disabled { opacity: 0.4; cursor: not-allowed; transform: none; }
.lt-mic.is-recording {
  background: linear-gradient(135deg, #dc2626, #ef4444);
  animation: lt-pulse 1.6s infinite;
}
@keyframes lt-pulse {
  0%   { box-shadow: 0 0 0 0 rgba(220, 38, 38, 0.5); }
  70%  { box-shadow: 0 0 0 16px rgba(220, 38, 38, 0); }
  100% { box-shadow: 0 0 0 0 rgba(220, 38, 38, 0); }
}
.lt-mic-meta { display: grid; gap: 2px; }
.lt-mic-status { font-size: 0.92rem; font-weight: 600; }
.lt-mic-status.is-live { color: var(--lt-red); }
.lt-timer {
  font-size: 0.8rem;
  color: var(--lt-muted);
  font-variant-numeric: tabular-nums;
}
.lt-timer.is-over { color: var(--lt-amber); font-weight: 600; }

.lt-transcript-wrap { margin-bottom: 18px; }
.lt-transcript-label {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 6px;
}
.lt-wordcount { font-size: 0.78rem; font-weight: 500; color: var(--lt-muted); }
.lt-wordcount.is-ok { color: var(--lt-green); }
#transcript {
  width: 100%;
  font-family: inherit;
  font-size: 1rem;
  line-height: 1.6;
  padding: 14px;
  border: 1px solid var(--lt-line);
  border-radius: 12px;
  resize: vertical;
  color: var(--lt-ink);
  background: #fff;
}
#transcript:focus {
  outline: none;
  border-color: var(--lt-blue);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15);
}
#transcript .interim { color: var(--lt-muted); }

.lt-unsupported {
  font-size: 0.85rem;
  line-height: 1.55;
  color: #92400e;
  background: #fffbeb;
  border: 1px solid #fde68a;
  border-radius: 10px;
  padding: 12px 14px;
  margin-bottom: 18px;
}

/* ── Grading ─────────────────────────────────────────────────────────── */
.lt-spinner {
  width: 44px;
  height: 44px;
  margin: 0 auto 22px;
  border: 3px solid #e8edf5;
  border-top-color: var(--lt-blue);
  border-radius: 50%;
  animation: lt-spin 0.9s linear infinite;
}
@keyframes lt-spin { to { transform: rotate(360deg); } }
.lt-grading-title { font-size: 1.5rem; font-weight: 700; margin-bottom: 8px; }
.lt-grading-sub { color: var(--lt-body); font-size: 0.95rem; line-height: 1.6; }
.lt-error-icon {
  width: 44px;
  height: 44px;
  margin: 0 auto 22px;
  border-radius: 50%;
  background: #fee2e2;
  color: var(--lt-red);
  font-size: 1.5rem;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
}
#screen-error .lt-btn { margin-top: 22px; }

/* ── Result ──────────────────────────────────────────────────────────── */
.lt-result { text-align: center; }
.lt-result-eyebrow {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--lt-muted);
  margin-bottom: 14px;
}
.lt-level-badge {
  width: 108px;
  height: 108px;
  margin: 0 auto 16px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--lt-navy), var(--lt-blue));
  color: #fff;
  font-size: 2.6rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 12px 32px rgba(30, 58, 138, 0.3);
  animation: lt-pop 0.5s cubic-bezier(0.34, 1.56, 0.64, 1) both;
}
@keyframes lt-pop {
  from { transform: scale(0.5); opacity: 0; }
  to   { transform: scale(1); opacity: 1; }
}
.lt-result-label {
  font-size: 1.7rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 10px;
}
.lt-result-summary {
  font-size: 1rem;
  line-height: 1.65;
  color: var(--lt-body);
  max-width: 46ch;
  margin: 0 auto 28px;
}

.lt-scores {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-bottom: 28px;
}
.lt-score {
  padding: 18px 10px;
  background: #f8fafc;
  border-radius: 14px;
  display: grid;
  gap: 4px;
}
.lt-score-value {
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--lt-navy);
  letter-spacing: -0.02em;
  font-variant-numeric: tabular-nums;
}
.lt-score-label {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--lt-muted);
}

.lt-scale { margin-bottom: 30px; }
.lt-scale-track {
  height: 8px;
  border-radius: 999px;
  background: linear-gradient(90deg, #bfdbfe, #3b82f6, #1e3a8a);
  position: relative;
  margin-bottom: 8px;
}
.lt-scale-marker {
  position: absolute;
  top: 50%;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: #fff;
  border: 3px solid var(--lt-navy);
  transform: translate(-50%, -50%);
  transition: left 0.8s cubic-bezier(0.34, 1.3, 0.64, 1);
  left: 0%;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
}
.lt-scale-labels {
  display: flex;
  justify-content: space-between;
  font-size: 0.68rem;
  font-weight: 600;
  color: var(--lt-muted);
}

.lt-report {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  text-align: left;
  margin-bottom: 14px;
}
@media (max-width: 560px) {
  .lt-report { grid-template-columns: 1fr; }
  .lt-scores { gap: 8px; }
  .lt-score-value { font-size: 1.3rem; }
}
.lt-report-block {
  padding: 20px;
  background: #f8fafc;
  border-radius: 14px;
}
.lt-report-block h3 {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--lt-muted);
  margin-bottom: 10px;
}
.lt-report-block ul { list-style: none; display: grid; gap: 8px; }
.lt-report-block li {
  font-size: 0.9rem;
  line-height: 1.5;
  color: var(--lt-ink);
  padding-left: 18px;
  position: relative;
}
.lt-report-block li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 8px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--lt-blue);
}
.lt-feedback-block { text-align: left; margin-bottom: 14px; }
.lt-feedback-block p {
  font-size: 0.92rem;
  line-height: 1.6;
  color: var(--lt-ink);
}

.lt-placement {
  display: grid;
  gap: 4px;
  padding: 20px;
  border: 1.5px dashed #c7d2fe;
  border-radius: 14px;
  background: #f5f8ff;
  margin-bottom: 24px;
}
.lt-placement-label {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--lt-muted);
}
.lt-placement strong {
  font-size: 1.05rem;
  color: var(--lt-navy);
  font-weight: 700;
}

.lt-save-warning {
  font-size: 0.82rem;
  line-height: 1.5;
  color: #92400e;
  background: #fffbeb;
  border: 1px solid #fde68a;
  border-radius: 10px;
  padding: 12px 14px;
  margin-bottom: 18px;
  text-align: left;
}

.lt-result-actions { display: grid; gap: 10px; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}


/* Back bar — same pattern as style.css so app pages match the site. */
.back-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  text-decoration: none;
  color: #111;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  background: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid rgba(0, 0, 0, 0.1);
  border-radius: 100px;
  padding: 7px 14px 7px 10px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.06);
  transition: all 0.2s ease;
  white-space: nowrap;
}

.back-btn:hover {
  background: #fff;
  border-color: rgba(0, 0, 0, 0.2);
  box-shadow: 0 4px 12px rgba(0,0,0,0.1);
  transform: translateX(-2px);
}

.back-btn svg {
  flex-shrink: 0;
}

.back-bar {
  display: flex;
  align-items: center;
  padding: 12px 24px;
  max-width: 1300px;
  margin: 0 auto;
}