/* ============================================================
   DiploMate — Practice & Mock Test Styles
   ============================================================ */

/* ── Practice page ────────────────────────────────────────── */
.practice-wrap { display:flex; min-height:100vh; background:var(--navy-darkest); }

/* Sidebar (reuses study sidebar) */
.practice-sidebar { width:240px; flex-shrink:0; background:var(--navy-mid); border-right:1px solid var(--navy-border-2); position:fixed; top:0; left:0; bottom:0; z-index:100; display:flex; flex-direction:column; overflow:hidden; transition:transform var(--transition); }
.practice-sidebar-top { padding:16px; border-bottom:1px solid var(--navy-border-2); flex-shrink:0; }
.prac-back { display:flex; align-items:center; gap:8px; font-size:0.8rem; color:var(--text-muted); text-decoration:none; margin-bottom:12px; transition:var(--transition); }
.prac-back:hover { color:var(--mint); }
.prac-filter-label { font-size:0.68rem; font-weight:700; letter-spacing:0.1em; text-transform:uppercase; color:var(--mint); margin-bottom:6px; }
.prac-filter-group { display:flex; gap:5px; flex-wrap:wrap; margin-bottom:10px; }
.prac-filter-btn { padding:4px 10px; border-radius:100px; font-size:0.72rem; font-weight:600; border:1px solid var(--navy-border); background:none; color:var(--text-muted); cursor:pointer; transition:var(--transition); }
.prac-filter-btn:hover { border-color:var(--mint); color:var(--mint); }
.prac-filter-btn.active { background:var(--mint); border-color:var(--mint); color:var(--navy-darkest); }

/* Chapter list in practice sidebar */
.prac-chapter-list { flex:1; overflow-y:auto; padding:8px; }
.prac-chapter-list::-webkit-scrollbar { width:3px; }
.prac-ch-item { display:flex; align-items:center; gap:8px; padding:8px 10px; border-radius:8px; font-size:0.82rem; color:var(--text-secondary); cursor:pointer; transition:var(--transition); margin-bottom:1px; }
.prac-ch-item:hover { background:var(--white-08); color:var(--text-primary); }
.prac-ch-item.active { background:var(--mint-dim); color:var(--mint); font-weight:600; }
.prac-ch-item.locked { opacity:0.45; cursor:not-allowed; }
.prac-ch-num { width:22px; height:22px; border-radius:6px; background:var(--navy-light); display:flex; align-items:center; justify-content:center; font-size:0.66rem; font-weight:700; flex-shrink:0; color:var(--text-muted); }
.prac-ch-item.active .prac-ch-num { background:var(--mint); color:var(--navy-darkest); }

/* ── Practice main ────────────────────────────────────────── */
.practice-main { flex:1; margin-left:240px; display:flex; flex-direction:column; min-height:100vh; }
.practice-topbar { height:54px; border-bottom:1px solid var(--navy-border-2); display:flex; align-items:center; justify-content:space-between; padding:0 24px; background:rgba(11,25,41,0.85); backdrop-filter:blur(12px); position:sticky; top:0; z-index:50; }
.prac-progress-wrap { flex:1; max-width:300px; margin:0 16px; }
.prac-progress-track { height:4px; background:var(--navy-border-2); border-radius:2px; overflow:hidden; }
.prac-progress-fill { height:100%; background:var(--mint); border-radius:2px; transition:width 0.4s ease; }
.prac-progress-text { font-size:0.72rem; color:var(--text-muted); margin-top:3px; }
.prac-score-wrap { display:flex; gap:16px; font-size:0.82rem; }
.prac-score-item { display:flex; align-items:center; gap:5px; font-weight:600; }
.score-correct { color:#34d399; }
.score-wrong   { color:#f87171; }
.score-skip    { color:var(--text-muted); }

/* ── Question card ────────────────────────────────────────── */
.question-area { flex:1; display:flex; flex-direction:column; align-items:center; justify-content:flex-start; padding:32px 24px 100px; }
.question-card { width:100%; max-width:740px; }
.question-meta { display:flex; align-items:center; gap:10px; margin-bottom:18px; flex-wrap:wrap; }
.q-badge { padding:3px 10px; border-radius:100px; font-size:0.7rem; font-weight:700; }
.q-badge-ch   { background:var(--mint-dim); color:var(--mint); border:1px solid rgba(125,216,164,0.2); }
.q-badge-diff { background:var(--white-08); color:var(--text-muted); }
.q-badge-diff.easy   { background:rgba(16,185,129,0.1); color:#34d399; }
.q-badge-diff.medium { background:rgba(245,158,11,0.1); color:#fbbf24; }
.q-badge-diff.hard   { background:rgba(239,68,68,0.1);  color:#f87171; }
.q-badge-pyq { background:rgba(59,130,246,0.1); color:#60a5fa; border:1px solid rgba(59,130,246,0.2); }
.q-num { font-size:0.8rem; color:var(--text-muted); margin-left:auto; }

.question-text { font-size:1.05rem; font-weight:500; line-height:1.7; color:var(--text-primary); margin-bottom:28px; }

/* Options */
.options-grid { display:flex; flex-direction:column; gap:10px; margin-bottom:24px; }
.option-btn {
  display:flex; align-items:flex-start; gap:14px;
  padding:14px 18px; border-radius:12px;
  border:1.5px solid var(--navy-border-2);
  background:var(--navy-mid); color:var(--text-primary);
  cursor:pointer; transition:var(--transition);
  font-size:0.92rem; line-height:1.5; text-align:left;
  font-family:var(--font-body);
}
.option-btn:hover:not(:disabled) { border-color:var(--mint); background:var(--mint-dim-2); }
.option-btn:disabled { cursor:default; }
.option-btn.selected { border-color:var(--mint); background:var(--mint-dim); }
.option-btn.correct  { border-color:#34d399; background:rgba(16,185,129,0.1); }
.option-btn.wrong    { border-color:#f87171; background:rgba(239,68,68,0.08); }
.option-letter { width:26px; height:26px; border-radius:50%; background:var(--navy-light); display:flex; align-items:center; justify-content:center; font-size:0.75rem; font-weight:700; flex-shrink:0; margin-top:1px; }
.option-btn.correct .option-letter { background:#34d399; color:var(--navy-darkest); }
.option-btn.wrong   .option-letter { background:#f87171; color:#fff; }

/* Explanation box */
.explanation-box { border-radius:12px; padding:16px 18px; margin-bottom:20px; border:1px solid; }
.explanation-box.correct { background:rgba(16,185,129,0.07); border-color:rgba(16,185,129,0.25); }
.explanation-box.wrong   { background:rgba(239,68,68,0.07);   border-color:rgba(239,68,68,0.2); }
.exp-title { font-size:0.78rem; font-weight:700; margin-bottom:6px; }
.explanation-box.correct .exp-title { color:#34d399; }
.explanation-box.wrong   .exp-title { color:#f87171; }
.exp-pyq { font-size:0.72rem; color:#60a5fa; margin-top:6px; }
.exp-text { font-size:0.86rem; color:var(--text-secondary); line-height:1.65; }

/* Action row */
.question-actions { display:flex; gap:10px; align-items:center; flex-wrap:wrap; }
.btn-next-q { background:var(--mint); color:var(--navy-darkest); border:none; border-radius:10px; padding:12px 28px; font-size:0.92rem; font-weight:700; cursor:pointer; transition:var(--transition); font-family:var(--font-body); }
.btn-next-q:hover { background:var(--mint-bright); transform:translateY(-2px); }
.btn-skip-q { background:none; border:1.5px solid var(--navy-border); border-radius:10px; padding:12px 20px; font-size:0.88rem; font-weight:600; color:var(--text-muted); cursor:pointer; transition:var(--transition); font-family:var(--font-body); }
.btn-skip-q:hover { border-color:var(--mint); color:var(--mint); }
.btn-wrong-book { background:none; border:1.5px solid var(--navy-border); border-radius:10px; padding:10px 16px; font-size:0.82rem; font-weight:600; color:var(--text-muted); cursor:pointer; transition:var(--transition); font-family:var(--font-body); }
.btn-wrong-book.saved { color:#f87171; border-color:#f87171; }

/* Session complete screen */
.session-complete { text-align:center; padding:60px 24px; }
.session-score-ring { width:140px; height:140px; border-radius:50%; border:6px solid var(--mint); display:flex; flex-direction:column; align-items:center; justify-content:center; margin:0 auto 24px; }
.session-score-num { font-family:var(--font-display); font-size:2.5rem; font-weight:800; color:var(--mint); line-height:1; }
.session-score-sub { font-size:0.72rem; color:var(--text-muted); }
.session-stats-row { display:flex; justify-content:center; gap:32px; margin-bottom:32px; flex-wrap:wrap; }
.session-stat { text-align:center; }
.session-stat-val { font-family:var(--font-display); font-size:1.8rem; font-weight:800; }
.session-stat-lbl { font-size:0.75rem; color:var(--text-muted); }

/* ── Mock Test ────────────────────────────────────────────── */
.mock-wrap { display:grid; grid-template-columns:1fr 280px; min-height:100vh; background:var(--navy-darkest); }
.mock-main { display:flex; flex-direction:column; }
.mock-topbar { height:56px; background:var(--navy-mid); border-bottom:1px solid var(--navy-border-2); display:flex; align-items:center; justify-content:space-between; padding:0 24px; position:sticky; top:0; z-index:50; }
.mock-exam-name { font-family:var(--font-display); font-size:1rem; font-weight:700; }
.mock-timer { font-family:var(--font-display); font-size:1.4rem; font-weight:800; color:var(--mint); }
.mock-timer.warning { color:#fbbf24; animation:pulse 1s ease-in-out infinite; }
.mock-timer.danger  { color:#f87171; animation:pulse 0.5s ease-in-out infinite; }
@keyframes pulse { 0%,100%{opacity:1} 50%{opacity:0.6} }
.mock-question-area { flex:1; padding:28px 28px 100px; max-width:700px; }
.mock-q-status { display:flex; gap:12px; margin-bottom:16px; font-size:0.8rem; color:var(--text-muted); }
.mock-q-nav { display:flex; gap:10px; margin-top:20px; }

/* Question nav panel */
.mock-nav-panel { background:var(--navy-mid); border-left:1px solid var(--navy-border-2); display:flex; flex-direction:column; position:sticky; top:0; height:100vh; overflow-y:auto; }
.mock-nav-header { padding:16px; border-bottom:1px solid var(--navy-border-2); flex-shrink:0; }
.mock-nav-title { font-size:0.8rem; font-weight:700; margin-bottom:12px; }
.mock-nav-legend { display:flex; flex-direction:column; gap:5px; font-size:0.72rem; }
.mock-nav-legend-item { display:flex; align-items:center; gap:6px; color:var(--text-muted); }
.legend-sq { width:12px; height:12px; border-radius:3px; flex-shrink:0; }
.mock-q-grid { padding:12px; display:flex; flex-wrap:wrap; gap:5px; }
.mock-q-sq { width:32px; height:32px; border-radius:7px; border:1.5px solid var(--navy-border); background:var(--navy-light); display:flex; align-items:center; justify-content:center; font-size:0.72rem; font-weight:700; cursor:pointer; transition:var(--transition); color:var(--text-muted); }
.mock-q-sq:hover { border-color:var(--mint); color:var(--mint); }
.mock-q-sq.current  { border-color:var(--mint); background:var(--mint); color:var(--navy-darkest); }
.mock-q-sq.answered { border-color:#34d399; background:rgba(16,185,129,0.15); color:#34d399; }
.mock-q-sq.review   { border-color:#fbbf24; background:rgba(245,158,11,0.15); color:#fbbf24; }
.mock-nav-footer { padding:14px; border-top:1px solid var(--navy-border-2); margin-top:auto; flex-shrink:0; }
.btn-submit-mock { width:100%; background:var(--mint); color:var(--navy-darkest); border:none; border-radius:10px; padding:13px; font-size:0.95rem; font-weight:700; cursor:pointer; transition:var(--transition); font-family:var(--font-body); }
.btn-submit-mock:hover { background:var(--mint-bright); }
.btn-mark-review { background:none; border:1.5px solid #fbbf24; color:#fbbf24; border-radius:10px; padding:10px 16px; font-size:0.82rem; font-weight:600; cursor:pointer; font-family:var(--font-body); transition:var(--transition); }
.btn-mark-review:hover { background:rgba(245,158,11,0.1); }

/* Mock result */
.mock-result { max-width:680px; margin:40px auto; padding:0 24px 80px; }
.result-header { text-align:center; margin-bottom:36px; }
.result-score-big { font-family:var(--font-display); font-size:4rem; font-weight:800; color:var(--mint); }
.result-out-of { font-size:1rem; color:var(--text-muted); }
.result-stats-grid { display:grid; grid-template-columns:repeat(4,1fr); gap:12px; margin-bottom:32px; }
.result-stat-card { background:var(--navy-mid); border:1px solid var(--navy-border-2); border-radius:var(--radius-md); padding:16px; text-align:center; }
.result-stat-val { font-family:var(--font-display); font-size:1.6rem; font-weight:800; }
.result-stat-lbl { font-size:0.72rem; color:var(--text-muted); }

/* Wrong book */
.wrongbook-page { padding:80px 24px 60px; max-width:900px; margin:0 auto; }
.wrong-q-card { background:var(--navy-mid); border:1.5px solid rgba(239,68,68,0.2); border-radius:var(--radius-lg); padding:20px 22px; margin-bottom:14px; transition:var(--transition); }
.wrong-q-card:hover { border-color:rgba(239,68,68,0.4); }
.wrong-q-text { font-size:0.92rem; font-weight:500; color:var(--text-primary); margin-bottom:10px; line-height:1.6; }
.wrong-q-meta { display:flex; gap:10px; flex-wrap:wrap; margin-bottom:14px; }
.wrong-q-actions { display:flex; gap:10px; }
.btn-reattempt { background:var(--mint); color:var(--navy-darkest); border:none; border-radius:8px; padding:8px 18px; font-size:0.82rem; font-weight:700; cursor:pointer; font-family:var(--font-body); }
.btn-remove-wrong { background:none; border:1px solid var(--navy-border); border-radius:8px; padding:8px 14px; font-size:0.8rem; color:var(--text-muted); cursor:pointer; font-family:var(--font-body); transition:var(--transition); }
.btn-remove-wrong:hover { border-color:#f87171; color:#f87171; }

/* Responsive */
@media(max-width:900px) {
  .practice-sidebar { transform:translateX(-100%); }
  .practice-sidebar.open { transform:translateX(0); }
  .practice-main { margin-left:0; }
  .mock-wrap { grid-template-columns:1fr; }
  .mock-nav-panel { display:none; }
  .result-stats-grid { grid-template-columns:1fr 1fr; }
}