/* ── Clear Sound: Pronunciation Course — additional styles ── */

:root {
  --ph-green:   #4a9e4a;
  --ph-green-2: #7dd87d;
  --ph-green-bg: rgba(74,158,74,0.08);
}

/* ── Step badge ─────────────────────────────────────────────── */
.ph-step {
  display: flex; align-items: center; gap: 0.7rem;
  margin: 2.5rem 0 1.1rem;
}
.ph-step-num {
  flex-shrink: 0;
  width: 32px; height: 32px; border-radius: 50%;
  background: var(--ph-green); color: #fff;
  font-weight: 800; font-size: 0.9rem;
  display: flex; align-items: center; justify-content: center;
}
.ph-step-label {
  font-size: 0.72rem; font-weight: 700; text-transform: uppercase;
  letter-spacing: 0.13em; color: var(--ph-green);
}
.ph-step-title {
  font-size: 1.15rem; font-weight: 700; color: var(--navy);
  display: block; margin-top: 0.05rem;
}

/* ── Comparison block /UA/ vs /EN/ ──────────────────────────── */
.ph-compare {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 1rem; margin: 1.2rem 0;
}
@media (max-width: 540px) { .ph-compare { grid-template-columns: 1fr; } }

.ph-compare-col {
  border-radius: 14px; padding: 1.2rem 1.4rem;
  text-align: center;
}
.ph-compare-col.ua {
  background: #fff3f0; border: 2px solid #f5a89a;
}
.ph-compare-col.en {
  background: #f0faf0; border: 2px solid var(--ph-green);
}
.ph-compare-lang {
  font-size: 0.68rem; font-weight: 700; text-transform: uppercase;
  letter-spacing: 0.12em; margin-bottom: 0.6rem;
}
.ph-compare-col.ua .ph-compare-lang { color: #c53030; }
.ph-compare-col.en .ph-compare-lang { color: var(--ph-green); }
.ph-compare-symbol {
  font-family: 'Georgia', serif; font-size: 2.8rem; font-weight: 700;
  line-height: 1; margin-bottom: 0.5rem;
}
.ph-compare-col.ua .ph-compare-symbol { color: #c53030; }
.ph-compare-col.en .ph-compare-symbol { color: var(--ph-green); }
.ph-compare-desc {
  font-size: 0.86rem; color: var(--ink); line-height: 1.5;
}
.ph-compare-word {
  display: inline-block; margin-top: 0.5rem;
  font-size: 0.8rem; font-weight: 700; letter-spacing: 0.04em;
  padding: 0.2rem 0.7rem; border-radius: 100px;
}
.ph-compare-col.ua .ph-compare-word { background: #fde8e8; color: #9a1e1e; }
.ph-compare-col.en .ph-compare-word { background: #d4efcd; color: #1a5c1a; }

/* ── Mouth diagram ───────────────────────────────────────────── */
.mouth-diagrams {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 1.2rem; margin: 1.2rem 0;
}
@media (max-width: 480px) { .mouth-diagrams { grid-template-columns: 1fr; } }

.mouth-diagram-card {
  background: #fff; border: 1.5px solid var(--line);
  border-radius: 14px; padding: 1rem 1rem 0.8rem;
  text-align: center;
}
.mouth-diagram-card.wrong { border-color: #f5a89a; background: #fff8f7; }
.mouth-diagram-card.right { border-color: var(--ph-green); background: #f6fef6; }
.mouth-diagram-card svg { width: 100%; max-width: 160px; height: auto; }
.mouth-diagram-label {
  font-size: 0.72rem; font-weight: 700; text-transform: uppercase;
  letter-spacing: 0.1em; margin-top: 0.6rem;
}
.mouth-diagram-card.wrong .mouth-diagram-label { color: #c53030; }
.mouth-diagram-card.right .mouth-diagram-label { color: var(--ph-green); }
.mouth-diagram-ipa {
  font-family: 'Georgia', serif; font-size: 1.6rem;
  margin: 0.2rem 0 0.4rem;
}
.mouth-diagram-card.wrong .mouth-diagram-ipa { color: #c53030; }
.mouth-diagram-card.right .mouth-diagram-ipa { color: var(--ph-green); }
.mouth-diagram-caption {
  font-size: 0.82rem; color: var(--muted); line-height: 1.4;
}

/* ── Warning callout ─────────────────────────────────────────── */
.callout-warn {
  background: #fff3f0;
  border-left: 4px solid #e05c4a;
  padding: 1rem 1.2rem;
  border-radius: 10px;
  margin: 1.2rem 0;
  font-size: 0.95rem;
  color: var(--ink);
}
.callout-warn strong { color: #c53030; }

/* ── Tip callout (green) ─────────────────────────────────────── */
.callout-tip {
  background: #f0faf0;
  border-left: 4px solid var(--ph-green);
  padding: 1rem 1.2rem;
  border-radius: 10px;
  margin: 1.2rem 0;
  font-size: 0.95rem;
}
.callout-tip strong { color: var(--ph-green); }

/* ── Perception drill ────────────────────────────────────────── */
.perception-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 0.8rem;
  margin: 0.8rem 0;
}
.perception-item {
  background: rgba(255,255,255,0.07);
  border: 1.5px solid rgba(255,255,255,0.14);
  border-radius: 12px;
  padding: 0.85rem 1rem;
}
.perception-prompt {
  font-size: 0.82rem; color: rgba(255,255,255,0.65);
  margin-bottom: 0.55rem; font-weight: 500;
}
.perception-options {
  display: flex; gap: 0.5rem; flex-wrap: wrap;
}
.perception-btn {
  padding: 0.5rem 1.1rem;
  background: rgba(255,255,255,0.1);
  border: 1.5px solid rgba(255,255,255,0.22);
  border-radius: 8px;
  color: #fff; font-family: inherit; font-size: 1rem; font-weight: 700;
  cursor: pointer; letter-spacing: 0.03em;
  transition: all 0.15s;
  font-family: 'Georgia', serif;
}
.perception-btn:hover { background: rgba(255,255,255,0.18); }
.perception-btn.correct { background: var(--ph-green); border-color: var(--ph-green); color: #fff; }
.perception-btn.wrong   { background: var(--err); border-color: var(--err); }
.perception-feedback { margin-top: 0.45rem; font-size: 0.85rem; min-height: 1.1rem; }
.perception-feedback.ok,
.perception-feedback.correct { color: #9ae6b4; }
.perception-feedback.err,
.perception-feedback.wrong   { color: #feb2b2; }

/* ── Simple table for comparison data ───────────────────────── */
.ph-table {
  width: 100%; border-collapse: collapse; margin: 1rem 0;
  font-size: 0.88rem;
}
.ph-table th {
  background: var(--navy); color: var(--gold-2);
  padding: 0.5rem 0.8rem; text-align: left; font-size: 0.78rem;
  text-transform: uppercase; letter-spacing: 0.06em;
}
.ph-table td {
  padding: 0.55rem 0.8rem; border-bottom: 1px solid var(--line);
  color: var(--navy);
}
.ph-table tr:last-child td { border-bottom: none; }
.ph-table tr:nth-child(even) td { background: var(--cream-2); }

/* ── Shadow block ────────────────────────────────────────────── */
.shadow-block {
  background: #fff; border: 1.5px solid var(--ph-green);
  border-radius: 14px; overflow: hidden;
  margin: 0.8rem 0;
}
.shadow-header {
  background: var(--ph-green); color: #fff;
  padding: 0.65rem 1.2rem;
  display: flex; align-items: center; gap: 0.8rem;
}
.shadow-header-label {
  font-size: 0.72rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.1em;
}
.shadow-play-all {
  margin-left: auto;
  background: rgba(255,255,255,0.2); border: none; color: #fff;
  padding: 0.3rem 0.75rem; border-radius: 100px;
  font-size: 0.78rem; font-weight: 700; font-family: inherit;
  cursor: pointer; display: flex; align-items: center; gap: 0.35rem;
  transition: background 0.15s;
}
.shadow-play-all:hover { background: rgba(255,255,255,0.3); }
.shadow-lines { padding: 0.8rem 1.2rem; display: flex; flex-direction: column; gap: 0.55rem; }
.shadow-line {
  display: flex; align-items: flex-start; gap: 0.8rem;
  padding: 0.6rem 0.8rem; border-radius: 10px;
  background: #f9f9f9; border: 1px solid #eee;
  cursor: pointer; transition: border-color 0.15s;
}
.shadow-line:hover { border-color: var(--ph-green); }
.shadow-line.playing { background: #f0faf0; border-color: var(--ph-green); }
.shadow-speaker {
  font-size: 0.7rem; font-weight: 700; text-transform: uppercase;
  letter-spacing: 0.06em; color: var(--muted); min-width: 46px; flex-shrink: 0;
  padding-top: 0.2rem;
}
.shadow-text { flex: 1; }
.shadow-en { font-size: 1rem; font-weight: 600; color: var(--navy); }
.shadow-en .w-highlight { color: var(--ph-green); font-weight: 800; }
.shadow-uk { font-size: 0.82rem; color: var(--muted); margin-top: 0.2rem; }
.shadow-line-play {
  flex-shrink: 0; width: 30px; height: 30px; border-radius: 50%;
  background: var(--ph-green); color: #fff; border: none;
  display: flex; align-items: center; justify-content: center;
  cursor: pointer; transition: background 0.15s;
  align-self: center;
}
.shadow-line-play:hover { background: #3a8a3a; }
.shadow-line-play.playing { background: var(--gold); color: var(--navy); }
.shadow-instructions {
  padding: 0.6rem 1.2rem 0.85rem;
  font-size: 0.83rem; color: var(--muted); border-top: 1px solid #eee;
  font-style: italic;
}

/* ── Self-check ──────────────────────────────────────────────── */
.selfcheck-list {
  list-style: none; padding: 0; margin: 0.8rem 0;
}
.selfcheck-list li {
  display: flex; align-items: center; gap: 0.75rem;
  padding: 0.65rem 0.8rem;
  background: rgba(255,255,255,0.07);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 10px; margin-bottom: 0.5rem;
  cursor: pointer; transition: background 0.15s;
  font-size: 0.93rem; color: rgba(255,255,255,0.85);
}
.selfcheck-list li:hover { background: rgba(255,255,255,0.12); }
.selfcheck-list li.checked {
  background: rgba(74,158,74,0.2);
  border-color: rgba(74,158,74,0.45);
  color: #fff;
}
.selfcheck-box {
  width: 22px; height: 22px; border-radius: 6px; flex-shrink: 0;
  border: 2px solid rgba(255,255,255,0.3);
  background: transparent;
  display: flex; align-items: center; justify-content: center;
  transition: all 0.15s;
  font-size: 0.85rem;
}
.selfcheck-list li.checked .selfcheck-box {
  background: var(--ph-green); border-color: var(--ph-green); color: #fff;
}

/* ── TTS speed control ───────────────────────────────────────── */
.tts-speed {
  display: flex; align-items: center; gap: 0.5rem;
  margin: 0.8rem 0 1rem;
}
.tts-speed-label {
  font-size: 0.78rem; color: var(--muted); font-weight: 600;
}
.tts-speed-btn {
  padding: 0.28rem 0.7rem;
  border-radius: 100px;
  border: 1.5px solid var(--line);
  background: #fff; color: var(--navy);
  font-size: 0.8rem; font-weight: 700; font-family: inherit;
  cursor: pointer; transition: all 0.15s;
}
.tts-speed-btn.active { background: var(--navy); color: #fff; border-color: var(--navy); }
.tts-speed-btn:hover:not(.active) { border-color: var(--navy); }
.tts-accent-row {
  display: flex; align-items: center; gap: 0.5rem;
  margin-top: 0.5rem;
}

/* Articulation photo posters (replaces the small SVG mouth diagrams) */
.artic-posters {
  display: flex; flex-direction: column; gap: 1.4rem;
  margin: 1.2rem 0; max-width: 760px;
}
@media (min-width: 700px) { .artic-posters { margin-left: auto; margin-right: auto; } }
.artic-poster {
  margin: 0; border: 1.5px solid var(--line);
  border-radius: 14px; overflow: hidden; background: #fff;
}
.artic-poster.right { border-color: var(--ph-green); }
.artic-poster.wrong { border-color: #f5a89a; }
.artic-poster img { display: block; width: 100%; height: auto; }
.artic-poster-tag {
  font-size: 0.72rem; font-weight: 700; text-transform: uppercase;
  letter-spacing: 0.08em; padding: 0.55rem 0.9rem;
}
.artic-poster.right .artic-poster-tag { color: var(--ph-green); background: #f6fef6; }
.artic-poster.wrong .artic-poster-tag { color: #c53030; background: #fff8f7; }