/* ── BOOKS PAGE ── */
.books-header { padding: 3rem 0 2rem; }
.books-header h2 { margin-bottom: 0.5rem; }
.books-filter-row { display: flex; gap: 8px; margin-bottom: 2rem; flex-wrap: wrap; }
.filter-pill {
  padding: 6px 16px; border-radius: 50px;
  border: 1.5px solid var(--ink-20); background: var(--white);
  font-size: 0.85rem; color: var(--ink-60); cursor: pointer;
  transition: all var(--transition);
}
.filter-pill:hover { border-color: var(--ink-60); color: var(--ink); }
.filter-pill.active { background: var(--ink); color: white; border-color: var(--ink); }
.books-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: 1rem; }
.book-card {
  background: var(--white); border: 1px solid var(--ink-08);
  border-radius: var(--radius-lg); overflow: hidden;
  cursor: pointer; transition: all var(--transition);
}
.book-card:hover { box-shadow: var(--shadow-md); transform: translateY(-3px); }
.book-cover {
  height: 110px; display: flex; align-items: center; justify-content: center;
  position: relative; overflow: hidden;
}
.book-cover-num {
  font-family: var(--font-display); font-size: 3rem; font-weight: 600;
  color: rgba(255,255,255,0.9); text-shadow: 0 2px 8px rgba(0,0,0,0.2);
}
.book-cover-label {
  position: absolute; bottom: 8px; left: 0; right: 0; text-align: center;
  font-size: 0.65rem; letter-spacing: 0.12em; text-transform: uppercase;
  color: rgba(255,255,255,0.7);
}
.book-info { padding: 1rem; }
.book-info h4 { font-size: 0.9rem; font-weight: 500; margin-bottom: 4px; }
.book-info p { font-size: 0.78rem; color: var(--ink-60); margin-bottom: 12px; }
.book-dl-btn {
  width: 100%; padding: 7px; border-radius: var(--radius-sm);
  border: 1.5px solid var(--ink-20); background: none;
  font-size: 0.8rem; color: var(--ink-60); cursor: pointer;
  transition: all var(--transition); display: flex; align-items: center; justify-content: center; gap: 5px;
}
.book-dl-btn:hover { border-color: var(--green); color: var(--green); background: var(--green-light); }

/* ── EXAM PAGE ── */
.exam-container { max-width: 820px; margin: 0 auto; padding: 2rem 1.5rem 4rem; }
.exam-step { display: none; }
.exam-step.active { display: block; }

.step-header { margin-bottom: 2rem; }
.step-header h2 { margin-bottom: 0.5rem; }
.breadcrumb { display: flex; align-items: center; gap: 6px; font-size: 0.85rem; color: var(--ink-60); margin-bottom: 1rem; flex-wrap: wrap; }
.breadcrumb-sep { opacity: 0.4; }
.breadcrumb-current { color: var(--ink); font-weight: 500; }

.selection-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: 10px; }
.select-card {
  background: var(--white); border: 2px solid var(--ink-08);
  border-radius: var(--radius-lg); padding: 1.25rem;
  cursor: pointer; transition: all var(--transition);
  display: flex; flex-direction: column; gap: 8px;
  position: relative;
}
.select-card:hover { border-color: var(--ink-20); transform: translateY(-1px); }
.select-card.selected { border-color: var(--green); background: var(--green-light); }
.select-card .sc-icon { font-size: 1.4rem; }
.select-card .sc-title { font-size: 0.95rem; font-weight: 500; }
.select-card .sc-sub { font-size: 0.8rem; color: var(--ink-60); }
.select-card .sc-check {
  position: absolute; top: 10px; right: 10px;
  width: 20px; height: 20px; border-radius: 50%;
  background: var(--green); display: none; align-items: center; justify-content: center;
}
.select-card.selected .sc-check { display: flex; }
.select-card .sc-check::after { content: ''; width: 5px; height: 9px; border: 2px solid white; border-top: none; border-left: none; transform: rotate(45deg); margin-top: -2px; }

.step-nav { display: flex; gap: 10px; margin-top: 2rem; align-items: center; }
.step-back-btn {
  padding: 10px 20px; border-radius: var(--radius-md);
  border: 1.5px solid var(--ink-20); background: none;
  font-size: 0.9rem; color: var(--ink-60); cursor: pointer;
  transition: all var(--transition);
}
.step-back-btn:hover { color: var(--ink); border-color: var(--ink-60); }
.step-next-btn {
  padding: 10px 24px; border-radius: var(--radius-md);
  background: var(--green); color: white; border: none;
  font-size: 0.9rem; font-weight: 500; cursor: pointer;
  transition: all var(--transition); opacity: 0.4; pointer-events: none;
}
.step-next-btn.ready { opacity: 1; pointer-events: all; }
.step-next-btn.ready:hover { background: var(--green-dark); }

/* Test UI */
.test-header {
  position: sticky; top: 64px; z-index: 100;
  background: rgba(248,246,241,0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--ink-08);
  padding: 0.85rem 0; margin-bottom: 1.5rem;
}
.test-header-inner { display: flex; align-items: center; justify-content: space-between; gap: 1rem; }
.test-timer {
  display: flex; align-items: center; gap: 8px;
  background: var(--white); border: 1px solid var(--ink-08);
  border-radius: var(--radius-md); padding: 8px 16px;
}
.test-timer .time-val {
  font-family: 'DM Sans', monospace; font-size: 1.1rem; font-weight: 500;
  font-variant-numeric: tabular-nums; color: var(--ink);
  min-width: 52px;
}
.test-timer.warning .time-val { color: var(--red); }
.test-timer .time-label { font-size: 0.75rem; color: var(--ink-60); }
.test-info { font-size: 0.875rem; color: var(--ink-60); }
.test-info strong { color: var(--ink); font-weight: 500; }
.test-submit-btn {
  padding: 8px 20px; border-radius: var(--radius-md);
  background: var(--ink); color: white; border: none;
  font-size: 0.875rem; font-weight: 500; cursor: pointer;
  transition: all var(--transition);
}
.test-submit-btn:hover { background: var(--green-dark); }

.passage-container {
  background: var(--white); border: 1px solid var(--ink-08);
  border-radius: var(--radius-lg); padding: 1.75rem;
  margin-bottom: 1.5rem;
}
.passage-title { font-family: var(--font-display); font-size: 1.15rem; margin-bottom: 1rem; padding-bottom: 0.75rem; border-bottom: 1px solid var(--ink-08); }
.passage-text { font-size: 0.95rem; line-height: 1.85; color: var(--ink); }
.passage-text p { margin-bottom: 1rem; }

.questions-container { display: flex; flex-direction: column; gap: 1rem; }
.question-block {
  background: var(--white); border: 1px solid var(--ink-08);
  border-radius: var(--radius-lg); padding: 1.5rem;
  transition: border-color var(--transition);
}
.question-block.answered { border-color: rgba(26,107,74,0.25); }
.q-label { font-size: 0.75rem; font-weight: 500; color: var(--green); text-transform: uppercase; letter-spacing: 0.06em; margin-bottom: 0.5rem; }
.q-text { font-size: 0.95rem; color: var(--ink); line-height: 1.6; margin-bottom: 1rem; }
.options-list { display: flex; flex-direction: column; gap: 6px; }
.option-item {
  display: flex; align-items: center; gap: 10px;
  padding: 10px 14px; border: 1.5px solid var(--ink-08);
  border-radius: var(--radius-md); cursor: pointer;
  font-size: 0.9rem; transition: all var(--transition);
  background: var(--cream);
}
.option-item:hover { border-color: var(--ink-20); background: var(--white); }
.option-item.selected { border-color: var(--green); background: var(--green-light); color: var(--green-dark); }
.option-letter {
  width: 26px; height: 26px; border-radius: 50%;
  background: var(--ink-08); display: flex; align-items: center; justify-content: center;
  font-size: 0.8rem; font-weight: 500; flex-shrink: 0; color: var(--ink-60);
  transition: all var(--transition);
}
.option-item.selected .option-letter { background: var(--green); color: white; }
.fill-input {
  width: 100%; padding: 10px 14px;
  border: 1.5px solid var(--ink-20); border-radius: var(--radius-md);
  font-size: 0.95rem; color: var(--ink); background: var(--cream);
  outline: none; transition: all var(--transition);
}
.fill-input:focus { border-color: var(--green); background: white; box-shadow: 0 0 0 3px rgba(26,107,74,0.1); }

/* Writing test */
.writing-task-box {
  background: var(--white); border: 1px solid var(--ink-08);
  border-left: 4px solid var(--purple);
  border-radius: var(--radius-lg); padding: 1.5rem;
  margin-bottom: 1.5rem;
}
.writing-task-box .task-label { font-size: 0.75rem; font-weight: 500; color: var(--purple); text-transform: uppercase; letter-spacing: 0.06em; margin-bottom: 0.75rem; }
.writing-task-box p { font-size: 0.95rem; color: var(--ink); line-height: 1.7; }
.writing-toolbar { display: flex; align-items: center; justify-content: space-between; margin-bottom: 8px; flex-wrap: wrap; gap: 8px; }
.writing-toolbar .wt-left { display: flex; align-items: center; gap: 10px; }
.ai-eval-badge { display: inline-flex; align-items: center; gap: 5px; padding: 4px 10px; border-radius: 50px; background: var(--purple-light); color: var(--purple); font-size: 0.78rem; font-weight: 500; }
.word-count-display { font-size: 0.85rem; color: var(--ink-60); }
.word-count-display.good { color: var(--green); }
.word-count-display.warning { color: var(--gold); }

/* Listening */
.audio-player-card {
  background: var(--white); border: 1px solid var(--ink-08);
  border-radius: var(--radius-lg); padding: 1.5rem;
  margin-bottom: 1.5rem;
}
.ap-header { display: flex; align-items: center; gap: 10px; margin-bottom: 1.25rem; }
.ap-icon { width: 40px; height: 40px; border-radius: 50%; background: var(--gold-light); display: flex; align-items: center; justify-content: center; font-size: 1.1rem; flex-shrink: 0; }
.ap-info h4 { font-size: 0.95rem; font-weight: 500; }
.ap-info p { font-size: 0.8rem; color: var(--ink-60); }
.ap-controls { display: flex; align-items: center; gap: 14px; }
.ap-play {
  width: 44px; height: 44px; border-radius: 50%;
  background: var(--gold); border: none; cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  transition: all var(--transition); flex-shrink: 0;
}
.ap-play:hover { background: #a07818; transform: scale(1.05); }
.ap-play-icon { font-size: 1rem; }
.ap-track { flex: 1; }
.ap-progress-wrap { height: 5px; background: var(--ink-08); border-radius: 3px; cursor: pointer; margin-bottom: 5px; position: relative; }
.ap-progress-fill { height: 100%; background: var(--gold); border-radius: 3px; transition: width 0.3s linear; }
.ap-times { display: flex; justify-content: space-between; font-size: 0.75rem; color: var(--ink-60); }
.ap-speed {
  padding: 4px 10px; border-radius: var(--radius-sm);
  border: 1px solid var(--ink-20); background: none;
  font-size: 0.78rem; cursor: pointer; color: var(--ink-60);
  transition: all var(--transition);
}
.ap-speed:hover { border-color: var(--ink-60); color: var(--ink); }

/* Results */
.result-container { max-width: 680px; margin: 0 auto; padding: 2rem 1.5rem 4rem; }
.result-hero {
  background: var(--white); border: 1px solid var(--ink-08);
  border-radius: var(--radius-xl); padding: 2.5rem;
  text-align: center; margin-bottom: 1.5rem;
  position: relative; overflow: hidden;
}
.result-hero::before {
  content: ''; position: absolute; top: -40px; right: -40px;
  width: 150px; height: 150px; border-radius: 50%;
  background: var(--green-light); opacity: 0.6;
}
.band-score-display {
  font-family: var(--font-display); font-size: 5rem; font-weight: 600;
  color: var(--green); line-height: 1;
}
.band-score-label { font-size: 0.9rem; color: var(--ink-60); margin-top: 4px; margin-bottom: 1.25rem; }
.band-desc { font-size: 1rem; color: var(--ink); max-width: 340px; margin: 0 auto; line-height: 1.6; }
.result-meta { font-size: 0.85rem; color: var(--ink-60); display: inline-flex; align-items: center; gap: 6px; background: var(--ink-08); padding: 4px 12px; border-radius: 50px; margin-top: 1rem; }

.time-cards { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-bottom: 1.5rem; }
.time-card {
  background: var(--white); border: 1px solid var(--ink-08);
  border-radius: var(--radius-lg); padding: 1.25rem; text-align: center;
}
.time-card-val { font-family: var(--font-display); font-size: 1.8rem; font-weight: 600; color: var(--ink); }
.time-card-val.ideal { color: var(--green); }
.time-card-label { font-size: 0.8rem; color: var(--ink-60); margin-top: 4px; }
.time-card-hint { font-size: 0.75rem; margin-top: 6px; }

.answers-review {
  background: var(--white); border: 1px solid var(--ink-08);
  border-radius: var(--radius-lg); overflow: hidden; margin-bottom: 1.5rem;
}
.answers-review-header { padding: 1rem 1.5rem; border-bottom: 1px solid var(--ink-08); display: flex; align-items: center; justify-content: space-between; }
.answers-review-header h3 { font-family: var(--font-display); font-size: 1rem; }
.answer-row {
  display: flex; align-items: flex-start; gap: 12px;
  padding: 1rem 1.5rem; border-bottom: 1px solid var(--ink-08);
}
.answer-row:last-child { border-bottom: none; }
.answer-row .ar-status { padding: 3px 10px; border-radius: 50px; font-size: 0.75rem; font-weight: 500; white-space: nowrap; flex-shrink: 0; margin-top: 2px; }
.ar-correct { background: var(--green-light); color: var(--green-dark); }
.ar-wrong { background: var(--red-light); color: var(--red); }
.answer-row .ar-text { font-size: 0.875rem; line-height: 1.6; }
.answer-row .ar-text strong { color: var(--ink); font-weight: 500; }
.answer-row .ar-text .ar-correct-answer { color: var(--green); font-weight: 500; }
.answer-row .ar-text .ar-your-answer { color: var(--red); text-decoration: line-through; opacity: 0.7; }

.register-nudge {
  background: linear-gradient(135deg, var(--green-light) 0%, var(--white) 100%);
  border: 1px solid rgba(26,107,74,0.2);
  border-radius: var(--radius-xl); padding: 2rem;
  text-align: center; margin-bottom: 1.5rem;
}
.register-nudge h3 { font-family: var(--font-display); font-size: 1.2rem; margin-bottom: 0.5rem; }
.register-nudge p { font-size: 0.9rem; margin-bottom: 1.5rem; max-width: 360px; margin-left: auto; margin-right: auto; }
.register-nudge .rn-actions { display: flex; gap: 10px; justify-content: center; flex-wrap: wrap; }

/* Writing result */
.ai-feedback-card {
  background: var(--white); border: 1px solid var(--ink-08);
  border-radius: var(--radius-lg); overflow: hidden; margin-bottom: 1.5rem;
}
.ai-feedback-header {
  background: var(--purple); padding: 1rem 1.5rem;
  display: flex; align-items: center; gap: 10px;
}
.ai-feedback-header h3 { color: white; font-family: var(--font-display); font-size: 1rem; }
.ai-feedback-header .ai-icon { font-size: 1.1rem; }
.criteria-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 0; }
.criteria-item { padding: 1rem 1.5rem; border-bottom: 1px solid var(--ink-08); border-right: 1px solid var(--ink-08); }
.criteria-item:nth-child(even) { border-right: none; }
.criteria-item:nth-last-child(-n+2) { border-bottom: none; }
.criteria-name { font-size: 0.75rem; font-weight: 500; color: var(--ink-60); text-transform: uppercase; letter-spacing: 0.05em; margin-bottom: 4px; }
.criteria-score { font-family: var(--font-display); font-size: 1.5rem; font-weight: 600; color: var(--ink); }
.criteria-bar { margin-top: 6px; }
.ai-feedback-text { padding: 1.5rem; font-size: 0.9rem; line-height: 1.8; color: var(--ink-60); border-top: 1px solid var(--ink-08); }

/* ── SPEAKING PAGE ── */
.speaking-layout { display: grid; grid-template-columns: 280px 1fr; gap: 1.5rem; padding: 2rem 0 4rem; }
.speaking-sidebar { }
.register-prompt-card {
  background: var(--green); color: white;
  border-radius: var(--radius-xl); padding: 1.5rem;
  margin-bottom: 1rem;
}
.register-prompt-card h3 { color: white; font-family: var(--font-display); font-size: 1rem; margin-bottom: 0.5rem; }
.register-prompt-card p { color: rgba(255,255,255,0.75); font-size: 0.85rem; margin-bottom: 1rem; }
.btn-white-sm { padding: 8px 16px; border-radius: var(--radius-sm); background: white; color: var(--green); font-size: 0.85rem; font-weight: 500; border: none; cursor: pointer; transition: all var(--transition); }
.btn-white-sm:hover { background: var(--green-light); }
.filter-card { background: var(--white); border: 1px solid var(--ink-08); border-radius: var(--radius-lg); padding: 1.25rem; }
.filter-card h4 { font-size: 0.8rem; font-weight: 500; text-transform: uppercase; letter-spacing: 0.08em; color: var(--ink-60); margin-bottom: 1rem; }
.filter-group { margin-bottom: 1.25rem; }
.filter-group label { font-size: 0.85rem; font-weight: 500; display: block; margin-bottom: 6px; }
.filter-group select { width: 100%; padding: 8px 12px; border: 1.5px solid var(--ink-20); border-radius: var(--radius-sm); font-size: 0.85rem; background: var(--cream); color: var(--ink); outline: none; }
.filter-group select:focus { border-color: var(--green); }

.partners-main { }
.partners-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 1.25rem; flex-wrap: wrap; gap: 8px; }
.partners-header h2 { font-size: 1.25rem; }
.sort-select { padding: 6px 12px; border: 1.5px solid var(--ink-20); border-radius: var(--radius-sm); font-size: 0.85rem; background: var(--white); color: var(--ink); outline: none; cursor: pointer; }
.partners-list { display: flex; flex-direction: column; gap: 10px; }
.partner-card {
  background: var(--white); border: 1px solid var(--ink-08);
  border-radius: var(--radius-lg); padding: 1.25rem;
  display: flex; align-items: center; gap: 1rem;
  transition: all var(--transition);
}
.partner-card:hover { box-shadow: var(--shadow-sm); border-color: var(--ink-20); }
.partner-card.suggested { border-color: rgba(26,107,74,0.3); background: var(--green-light); }
.partner-info { flex: 1; min-width: 0; }
.partner-name-row { display: flex; align-items: center; gap: 8px; margin-bottom: 3px; flex-wrap: wrap; }
.partner-name { font-size: 0.95rem; font-weight: 500; }
.partner-details { font-size: 0.82rem; color: var(--ink-60); margin-bottom: 8px; }
.partner-tags { display: flex; gap: 6px; flex-wrap: wrap; }
.partner-actions { display: flex; flex-direction: column; gap: 6px; align-items: flex-end; }
.match-score { font-family: var(--font-display); font-size: 1.3rem; font-weight: 600; color: var(--green); text-align: center; }
.match-score-label { font-size: 0.7rem; color: var(--ink-60); text-align: center; }
.connect-btn {
  padding: 7px 16px; border-radius: var(--radius-sm);
  border: 1.5px solid var(--green); background: none;
  color: var(--green); font-size: 0.82rem; font-weight: 500;
  cursor: pointer; transition: all var(--transition); white-space: nowrap;
}
.connect-btn:hover { background: var(--green); color: white; }

/* ── PROGRESS PAGE ── */
.progress-container { padding: 2rem 0 4rem; }
.progress-header { margin-bottom: 2rem; }
.progress-header h2 { margin-bottom: 0.5rem; }
.summary-cards { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1rem; margin-bottom: 2rem; }
.summary-card {
  background: var(--white); border: 1px solid var(--ink-08);
  border-radius: var(--radius-lg); padding: 1.25rem;
}
.summary-card .sc-label { font-size: 0.75rem; font-weight: 500; text-transform: uppercase; letter-spacing: 0.06em; color: var(--ink-60); margin-bottom: 6px; }
.summary-card .sc-val { font-family: var(--font-display); font-size: 2rem; font-weight: 600; color: var(--ink); line-height: 1; }
.summary-card .sc-sub { font-size: 0.8rem; color: var(--ink-60); margin-top: 4px; }
.summary-card .sc-change { font-size: 0.78rem; font-weight: 500; margin-top: 6px; }
.sc-change.up { color: var(--green); }
.sc-change.down { color: var(--red); }

.charts-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; margin-bottom: 1.5rem; }
.chart-card {
  background: var(--white); border: 1px solid var(--ink-08);
  border-radius: var(--radius-lg); padding: 1.5rem;
}
.chart-card h3 { font-size: 0.9rem; font-weight: 500; margin-bottom: 1.25rem; color: var(--ink-60); }
.mini-chart { height: 100px; display: flex; align-items: flex-end; gap: 6px; }
.mini-bar { flex: 1; border-radius: 4px 4px 0 0; min-height: 4px; transition: height 0.4s ease; }
.mini-bar-labels { display: flex; gap: 6px; margin-top: 6px; }
.mini-bar-labels span { flex: 1; text-align: center; font-size: 0.68rem; color: var(--ink-60); }

.line-chart-wrap { position: relative; height: 100px; }
.line-chart-wrap svg { width: 100%; height: 100%; }

.activity-section { background: var(--white); border: 1px solid var(--ink-08); border-radius: var(--radius-lg); overflow: hidden; }
.activity-section-header { padding: 1rem 1.5rem; border-bottom: 1px solid var(--ink-08); display: flex; align-items: center; justify-content: space-between; }
.activity-section-header h3 { font-family: var(--font-display); font-size: 1rem; }
.activity-item { display: flex; align-items: center; gap: 12px; padding: 0.875rem 1.5rem; border-bottom: 1px solid var(--ink-08); transition: background var(--transition); }
.activity-item:last-child { border-bottom: none; }
.activity-item:hover { background: var(--cream); }
.act-dot { width: 8px; height: 8px; border-radius: 50%; flex-shrink: 0; }
.act-info { flex: 1; min-width: 0; }
.act-title { font-size: 0.9rem; font-weight: 500; }
.act-sub { font-size: 0.78rem; color: var(--ink-60); margin-top: 1px; }
.act-score-badge { font-family: var(--font-display); font-size: 1.1rem; font-weight: 600; color: var(--green); }
.act-time-ago { font-size: 0.75rem; color: var(--ink-60); white-space: nowrap; }

/* ── AUTH MODAL ── */
.auth-tabs { display: flex; border-bottom: 1px solid var(--ink-08); margin-bottom: 1.5rem; }
.auth-tab { flex: 1; padding: 10px; text-align: center; border: none; background: none; cursor: pointer; font-size: 0.9rem; color: var(--ink-60); border-bottom: 2px solid transparent; margin-bottom: -1px; transition: all var(--transition); }
.auth-tab.active { color: var(--green); border-bottom-color: var(--green); font-weight: 500; }
.auth-form { display: none; }
.auth-form.active { display: block; }

/* Responsive */
@media (max-width: 900px) {
  .speaking-layout { grid-template-columns: 1fr; }
  .speaking-sidebar { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
  .summary-cards { grid-template-columns: repeat(2, 1fr); }
  .charts-grid { grid-template-columns: 1fr; }
  .criteria-grid { grid-template-columns: 1fr; }
  .criteria-item { border-right: none !important; }
}
@media (max-width: 600px) {
  .speaking-sidebar { grid-template-columns: 1fr; }
  .summary-cards { grid-template-columns: 1fr 1fr; }
  .partner-card { flex-wrap: wrap; }
  .selection-grid { grid-template-columns: 1fr 1fr; }
  .time-cards { grid-template-columns: 1fr; }
  .books-grid { grid-template-columns: repeat(2, 1fr); }
}