/* ============================================================
   Study — styles.css
   "Essence" dark design system. No external fonts/libs.
   Palette: cyan #00a2c7 (profit/bull), #db5755 (loss/bear),
   baby blue #89cff0 (accent), silver #c0c0c0 (neutral),
   slate #363A45 (grid/borders), near-black backgrounds.
   ============================================================ */

/* Day mode is the default. Night mode is :root[data-theme="dark"] below. */
:root {
  color-scheme: light;
  --bg: #f3f5f9;
  --panel: #ffffff;
  --panel-border: #dfe3ea;
  --card: #ffffff;
  --card-border: #dfe3ea;
  --nav-inactive: #5d6272;
  --accent: #0b7f9f;
  --accent-strong: #00a2c7;
  --accent-light: #5fd0ee;
  --accent-bg: rgba(0, 162, 199, 0.10);
  --green: #007a96;
  --green-bg: rgba(0, 162, 199, 0.12);
  --green-bg-strong: rgba(0, 162, 199, 0.12);
  --red: #c8403e;
  --red-bg: rgba(200, 64, 62, 0.10);
  --red-bg-strong: rgba(200, 64, 62, 0.10);
  --slate: #c4cad6;
  --text: #1b2030;
  --body: #3b4254;
  --muted: #626879;
  --faint: #6b7183;
  --hover-row: #eef1f6;
  --border: #dfe3ea;
  --input-bg: #ffffff;
  --shadow: 0 1px 3px rgba(20, 30, 50, 0.12);
  --shadow-lg: 0 10px 40px rgba(20, 30, 50, 0.18);
  /* status colours used for text and borders (darker in day mode so they stay readable) */
  --cyan: #00829f;
  --ok-green: #1f8a57;
  --amber: #a2740d;
  --on-ok: #ffffff;
  --on-bad: #ffffff;
  --radius: 12px;
  --topbar-h: 56px;
  --trans: 150ms ease;
}

/* Night mode */
:root[data-theme="dark"] {
  color-scheme: dark;
  --bg: #0d0e12;
  --panel: #101117;
  --panel-border: #24262e;
  --card: #16181d;
  --card-border: #262933;
  --nav-inactive: #8b8e99;
  --accent: #89cff0;
  --accent-strong: #00a2c7;
  --accent-light: #89cff0;
  --accent-bg: rgba(137, 207, 240, 0.10);
  --green: #00a2c7;
  --green-bg: rgba(0, 162, 199, 0.13);
  --green-bg-strong: rgba(0, 162, 199, 0.13);
  --red: #db5755;
  --red-bg: rgba(219, 87, 85, 0.13);
  --red-bg-strong: rgba(219, 87, 85, 0.13);
  --slate: #363a45;
  --text: #e8e8ea;
  --body: #c0c0c0;
  --muted: #7a7d87;
  --faint: #6f727c;
  --hover-row: #1b1e26;
  --border: #262933;
  --input-bg: #0d0e12;
  --shadow: 0 1px 3px rgba(0, 0, 0, 0.35);
  --shadow-lg: 0 10px 40px rgba(0, 0, 0, 0.6);
  --cyan: #00a2c7;
  --ok-green: #2e9e6a;
  --amber: #e0b34a;
  --on-ok: #04140c;
  --on-bad: #1a0707;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  height: 100%;
}

body {
  font-family: -apple-system, "Segoe UI", Roboto, sans-serif;
  font-size: 14px;
  color: var(--body);
  background: var(--bg);
  overflow: hidden;
}

button { font-family: inherit; }
input, select, textarea { font-family: inherit; font-size: 13px; color: var(--text);  }

/* ---------- Layout shell ---------- */

#topbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--topbar-h);
  background: var(--panel);
  border-bottom: 1px solid var(--panel-border);
  z-index: 60;
  display: flex;
  align-items: center;
}

#layout {
  display: flex;
  height: 100vh;
  padding-top: var(--topbar-h);
}

#main {
  flex: 1;
  overflow-y: auto;
  padding: 24px 28px 48px;
}

/* ---------- Topbar ---------- */

.topbar-inner {
  display: flex;
  align-items: center;
  width: 100%;
  padding: 0 20px 0 16px;
  gap: 12px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
  text-decoration: none;
}

.logo .logo-mark { font-size: 22px; line-height: 1; }

.logo .wordmark {
  font-weight: 600;
  font-size: 14px;
  letter-spacing: 2.5px;
  color: var(--text);
}

.topbar-spacer { flex: 1; }

.theme-toggle {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  height: 34px;
  padding: 0 14px 0 11px;
  border-radius: 999px;
  border: 1px solid var(--slate);
  background: var(--card);
  color: var(--text);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: border-color var(--trans), color var(--trans), background var(--trans);
}
.theme-toggle:hover { border-color: var(--accent); color: var(--accent); }
.theme-toggle:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.theme-toggle svg { width: 16px; height: 16px; flex: none; }


.topbar-controls {
  display: flex;
  align-items: center;
  gap: 10px;
}

.tb-select {
  background: var(--input-bg);
  color: var(--text);
  border: 1px solid var(--slate);
  border-radius: 8px;
  padding: 7px 10px;
  font-size: 13px;
  cursor: pointer;
  transition: border-color var(--trans), background var(--trans);
}

.tb-select:hover { border-color: var(--accent); }
.tb-select:focus { outline: none; border-color: var(--accent); }

.tb-date {
  background: var(--input-bg);
  color: var(--text);
  border: 1px solid var(--slate);
  border-radius: 8px;
  padding: 6px 8px;
  font-size: 12px;
  
}
.tb-date:focus { outline: none; border-color: var(--accent); }

.btn {
  border: none;
  border-radius: 8px;
  padding: 8px 14px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: filter var(--trans), background var(--trans), box-shadow var(--trans), transform var(--trans);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

a.btn, a.btn:hover { text-decoration: none; }

.btn-primary {
  background: linear-gradient(135deg, var(--accent-strong), var(--accent-light));
  color: #0d0e12;
  box-shadow: 0 2px 8px rgba(0, 162, 199, 0.35);
}
.btn-primary:hover { filter: brightness(1.1); }
.btn-primary:active { transform: translateY(1px); }

.btn-secondary {
  background: var(--card);
  color: var(--accent);
  border: 1px solid var(--slate);
}
.btn-secondary:hover { background: var(--accent-bg); border-color: var(--accent); }

.btn-danger {
  background: var(--red-bg);
  color: var(--red);
}
.btn-danger:hover { background: rgba(219, 87, 85, 0.22); }

.btn-ghost {
  background: transparent;
  color: var(--muted);
  border: 1px solid var(--slate);
}
.btn-ghost:hover { background: var(--hover-row); color: var(--text); }

/* ---------- Cards & page scaffolding ---------- */

.page { max-width: 1400px; margin: 0 auto; }

.card {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 20px;
}

.card-title {
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--muted);
  font-weight: 600;
  margin: 0 0 12px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.page-title {
  font-size: 20px;
  font-weight: 700;
  color: var(--text);
  margin: 0 0 18px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.pos { color: var(--green); }
.neg { color: var(--red); }
.zero { color: var(--body); }

/* ---------- Forms ---------- */

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px 14px;
}
.form-grid .full { grid-column: 1 / -1; }

.field label {
  display: block;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.6px;
  color: var(--muted);
  font-weight: 600;
  margin-bottom: 4px;
}

.field input[type="text"],
.field input[type="number"],
.field input[type="datetime-local"],
.field input[type="date"],
.field select,
.field textarea {
  width: 100%;
  border: 1px solid var(--slate);
  border-radius: 8px;
  padding: 8px 10px;
  background: var(--input-bg);
  color: var(--text);
  transition: border-color var(--trans), box-shadow var(--trans);
}
.field input::placeholder, .field textarea::placeholder { color: var(--faint); }
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-bg);
}
.field input:disabled { background: var(--hover-row); color: var(--faint); }

.field textarea { resize: vertical; min-height: 74px; }

.dir-toggle { display: flex; gap: 6px; }
.dir-pill {
  flex: 1;
  border: 1px solid var(--slate);
  background: var(--input-bg);
  border-radius: 8px;
  padding: 8px 0;
  font-weight: 700;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--muted);
  cursor: pointer;
  transition: all var(--trans);
}
.dir-pill.long.active { background: var(--green-bg); border-color: var(--green); color: var(--green); }
.dir-pill.short.active { background: var(--red-bg); border-color: var(--red); color: var(--red); }

.pnl-preview {
  display: flex;
  align-items: center;
  gap: 10px;
  background: var(--panel);
  border: 1px solid var(--panel-border);
  border-radius: 8px;
  padding: 10px 14px;
}
.pnl-preview .pp-label { font-size: 11px; text-transform: uppercase; letter-spacing: 0.6px; color: var(--muted); font-weight: 600; }
.pnl-preview .pp-value { font-size: 19px; font-weight: 800; }
.pnl-preview .pp-mult { font-size: 11px; color: var(--faint); }
.pnl-preview .pp-manual { margin-left: auto; display: flex; align-items: center; gap: 6px; font-size: 12px; color: var(--muted); cursor: pointer; user-select: none; }

/* Chip input */
.chip-input {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 3px;
  border: 1px solid var(--slate);
  border-radius: 8px;
  padding: 5px 8px;
  background: var(--input-bg);
  cursor: text;
  position: relative;
  transition: border-color var(--trans), box-shadow var(--trans);
}
.chip-input.focus { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-bg); }
.chip-input input {
  border: none;
  outline: none;
  flex: 1;
  min-width: 90px;
  padding: 3px 2px;
  font-size: 13px;
  background: transparent;
  color: var(--text);
}
.chip-input input::placeholder { color: var(--faint); }
.chip-suggest {
  position: absolute;
  top: calc(100% + 4px);
  left: 0;
  right: 0;
  background: var(--card);
  border: 1px solid var(--slate);
  border-radius: 8px;
  box-shadow: var(--shadow-lg);
  z-index: 30;
  max-height: 160px;
  overflow-y: auto;
}
.chip-suggest div {
  padding: 7px 12px;
  cursor: pointer;
  font-size: 13px;
  color: var(--body);
}
.chip-suggest div:hover { background: var(--accent-bg); color: var(--accent); }

/* Screenshots */
.shot-area { margin-top: 4px; }
.shot-grid { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 8px; }
.shot-thumb {
  width: 86px; height: 62px;
  border-radius: 8px;
  object-fit: cover;
  cursor: zoom-in;
  border: 1px solid var(--card-border);
  transition: transform var(--trans), box-shadow var(--trans);
}
.shot-thumb:hover { transform: scale(1.04); box-shadow: var(--shadow-lg); }
.shot-drop {
  border: 1.5px dashed var(--slate);
  border-radius: 8px;
  padding: 14px;
  text-align: center;
  color: var(--faint);
  font-size: 12px;
  cursor: pointer;
  transition: border-color var(--trans), background var(--trans), color var(--trans);
}
.shot-drop:hover, .shot-drop.over { border-color: var(--accent); background: var(--accent-bg); color: var(--accent); }

/* Essence timeframe screenshots (tfShots) */
.tf-hint { font-size: 11px; color: var(--faint); margin: 0 0 6px; }
.tf-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}
.tf-slot {
  position: relative;
  border: 1.5px dashed var(--slate);
  border-radius: 8px;
  min-height: 76px;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 8px;
  color: var(--faint);
  font-size: 12px;
  cursor: pointer;
  background: var(--input-bg);
  transition: border-color var(--trans), background var(--trans), color var(--trans), box-shadow var(--trans);
}
.tf-slot:hover { border-color: var(--accent); color: var(--accent); }
.tf-slot .tf-slot-text { display: block; }
.tf-slot .tf-browse {
  position: absolute;
  right: 8px;
  bottom: 6px;
  background: none;
  border: none;
  padding: 2px 4px;
  font-size: 11px;
  color: var(--muted);
  text-decoration: underline;
  cursor: pointer;
}
.tf-slot .tf-browse:hover { color: var(--accent); }
.tf-slot.armed {
  border-color: var(--accent);
  border-style: solid;
  box-shadow: 0 0 0 3px var(--accent-bg);
  color: var(--accent);
}
.tf-slot.warn { border-color: rgba(219, 87, 85, 0.6); background: rgba(219, 87, 85, 0.07); }
.tf-slot.filled {
  border: 1px solid var(--card-border);
  padding: 0;
  overflow: hidden;
  cursor: zoom-in;
}
.tf-slot.filled:hover { border-color: var(--accent); }
.tf-slot.filled img {
  width: 100%;
  height: 88px;
  object-fit: cover;
  display: block;
}
.tf-slot .tf-label {
  position: absolute;
  left: 6px;
  bottom: 6px;
  background: rgba(13, 14, 18, 0.78);
  color: var(--text);
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  padding: 2px 7px;
  border-radius: 6px;
  pointer-events: none;
}
.tf-slot .tf-x {
  position: absolute;
  top: 4px;
  right: 4px;
  width: 20px;
  height: 20px;
  border: none;
  border-radius: 6px;
  background: rgba(13, 14, 18, 0.78);
  color: var(--body);
  cursor: pointer;
  font-size: 11px;
  line-height: 1;
  padding: 0;
}
.tf-slot .tf-x:hover { color: var(--red); background: rgba(13, 14, 18, 0.95); }

/* Trades-table tfShots indicator */
.tf-count { font-size: 11px; color: #c0c0c0; white-space: nowrap; }
.tf-count.full { color: var(--green); font-weight: 600; }

/* ---------- Modal ---------- */

.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  z-index: 90;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding: 48px 20px;
  overflow-y: auto;
  opacity: 0;
  transition: opacity var(--trans);
}
.modal-overlay.open { opacity: 1; }

.modal {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: 14px;
  box-shadow: var(--shadow-lg);
  width: 620px;
  max-width: 100%;
  transform: translateY(12px);
  transition: transform 200ms ease;
}
.modal-overlay.open .modal { transform: translateY(0); }
.modal.modal-wide { width: 760px; }

/* ---------- Empty state ---------- */

.empty {
  text-align: center;
  padding: 70px 20px;
  color: var(--muted);
}
.empty .empty-icon { font-size: 40px; margin-bottom: 12px; }
.empty h3 { margin: 0 0 6px; font-size: 17px; color: var(--text); }
.empty p { margin: 0 0 18px; font-size: 13px; }

/* ---------- Lightbox ---------- */

.lightbox {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.9);
  z-index: 300;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: zoom-out;
  padding: 30px;
}
.lightbox img {
  max-width: 95%;
  max-height: 95%;
  border-radius: 10px;
  border: 1px solid var(--slate);
  box-shadow: var(--shadow-lg);
}

/* ---------- Toast ---------- */

#toast-root {
  position: fixed;
  bottom: 22px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 400;
  display: flex;
  flex-direction: column;
  gap: 8px;
  align-items: center;
}
.toast {
  background: var(--card);
  border: 1px solid var(--slate);
  color: var(--text);
  border-radius: 10px;
  padding: 10px 18px;
  font-size: 13px;
  font-weight: 600;
  box-shadow: var(--shadow-lg);
  animation: toastin 200ms ease;
}
.toast.error { background: var(--red); border-color: var(--red); color: #fff; }
@keyframes toastin {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ---------- Scrollbars (webkit) ---------- */
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-thumb { background: var(--slate); border-radius: 5px; }
::-webkit-scrollbar-thumb:hover { background: var(--faint); }
::-webkit-scrollbar-track { background: transparent; }

/* ---------- Access-code lock screen ---------- */

#lock-root .lock-screen {
  position: fixed;
  inset: 0;
  z-index: 200;
  background: var(--bg);
  display: flex;
  align-items: center;
  justify-content: center;
}

.lock-panel {
  background: var(--panel);
  border: 1px solid var(--panel-border);
  border-radius: 16px;
  padding: 36px 40px 32px;
  width: 320px;
  text-align: center;
  box-shadow: var(--shadow-lg);
}

.lock-logo { font-size: 34px; margin-bottom: 10px; }

.lock-title {
  color: var(--text);
  font-weight: 600;
  letter-spacing: 3px;
  font-size: 15px;
  margin-bottom: 4px;
}

.lock-sub { color: var(--muted); font-size: 13px; margin-bottom: 18px; }

.lock-dots {
  display: flex;
  justify-content: center;
  gap: 10px;
  min-height: 14px;
  margin-bottom: 10px;
}

.lock-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  border: 1.5px solid var(--slate);
  transition: background var(--trans), border-color var(--trans);
}

.lock-dot.on { background: var(--accent-strong); border-color: var(--accent-strong); }

.lock-error {
  color: var(--red);
  font-size: 12px;
  min-height: 16px;
  margin-bottom: 10px;
}

.lock-input {
  width: 100%;
  box-sizing: border-box;
  height: 52px;
  margin-bottom: 8px;
  padding: 0 14px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--input-bg);
  color: var(--text);
  font-size: 20px;
  letter-spacing: 4px;
  text-align: center;
  outline: none;
}

.lock-input:focus { border-color: var(--accent); }

.lock-submit { width: 100%; font-size: 15px; letter-spacing: .5px; cursor: pointer; }

.lock-pad {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
}

.lock-key {
  height: 52px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--input-bg);
  color: var(--text);
  font-size: 18px;
  cursor: pointer;
  transition: background var(--trans), border-color var(--trans), color var(--trans);
}

.lock-key:hover { border-color: var(--accent); color: var(--accent); }

.lock-key.confirm {
  background: linear-gradient(135deg, var(--accent-strong), var(--accent-light));
  color: #0d0e12;
  border: none;
  font-weight: 700;
}

.lock-key.confirm:hover { filter: brightness(1.1); color: #0d0e12; }

@keyframes lock-shake {
  0%, 100% { transform: translateX(0); }
  20% { transform: translateX(-8px); }
  40% { transform: translateX(8px); }
  60% { transform: translateX(-5px); }
  80% { transform: translateX(5px); }
}

.lock-panel.shake { animation: lock-shake 300ms ease; }

/* ---- Backtest page ------------------------------------------------------- */
.bt-head {
  display: flex; align-items: center; justify-content: space-between;
  gap: 12px; margin-bottom: 16px; flex-wrap: wrap;
}
.bt-title { margin: 0; font-size: 20px; }
.bt-sub { color: var(--faint); font-size: 12px; margin-top: 3px; }
.bt-grid {
  display: grid; grid-template-columns: 1fr 1.3fr; gap: 16px; margin-bottom: 16px;
}
@media (max-width: 900px) { .bt-grid { grid-template-columns: 1fr; } }
.bt-checks { list-style: none; margin: 0; padding: 0; font-size: 13px; }
.bt-checks li { padding: 5px 0; border-bottom: 1px solid var(--border); color: var(--body); }
.bt-checks li:last-child { border-bottom: none; }
.bt-checks .bt-mark { display: inline-block; width: 18px; font-weight: 700; }
.bt-checks li.ok .bt-mark { color: var(--green); }
.bt-checks li.warn { color: var(--red); }
.bt-checks li.warn .bt-mark { color: var(--red); }
.bt-checks li.info .bt-mark { color: var(--faint); }
.bt-wd { color: var(--faint); font-size: 11px; }
.bt-row-actions { white-space: nowrap; text-align: right; }
.bt-row-actions .btn { padding: 2px 7px; font-size: 13px; }
.bt-form-foot {
  display: flex; align-items: center; justify-content: space-between;
  gap: 12px; margin-top: 12px; flex-wrap: wrap;
}
.bt-derived { color: var(--faint); font-size: 12px; }
.bt-empty { color: var(--faint); font-size: 13px; }
.bt-dayform {
  display: flex; align-items: center; gap: 8px; flex-wrap: wrap; margin-bottom: 12px;
}
.bt-dayform input[type="date"], .bt-dayform select {
  background: var(--input-bg, rgba(255,255,255,0.04)); color: var(--text);
  border: 1px solid var(--border); border-radius: 6px; padding: 6px 8px; font-size: 13px;
}
.bt-hint { color: var(--faint); font-size: 11px; }

/* ---- XSP checklist page --------------------------------------------------- */
.xsp-progress { text-transform: none; letter-spacing: 0; font-weight: 700; color: var(--text); }
.xsp-checklist {
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px;
}
@media (max-width: 900px) { .xsp-checklist { grid-template-columns: 1fr; } }
.xsp-section-title {
  font-size: 12px; text-transform: uppercase; letter-spacing: 0.6px;
  color: var(--muted); font-weight: 600; margin-bottom: 8px;
}
.xsp-item {
  display: flex; align-items: flex-start; gap: 9px; padding: 6px 0;
  font-size: 13px; color: var(--body); cursor: pointer;
}
.xsp-item input[type="checkbox"] { margin-top: 2px; flex: none; accent-color: var(--accent-strong); }
.xsp-item.checked span { color: var(--faint); text-decoration: line-through; }
.xsp-checklist-foot {
  display: flex; align-items: center; gap: 12px; margin-top: 14px;
  padding-top: 12px; border-top: 1px solid var(--border);
}
.xsp-warn {
  border-color: var(--red); background: var(--red-bg); color: var(--text);
  font-size: 13px; margin-bottom: 16px;
}

.xsp-scan-grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-bottom: 12px;
}
@media (max-width: 900px) { .xsp-scan-grid { grid-template-columns: repeat(2, 1fr); } }
.xsp-scan-label {
  font-size: 11px; text-transform: uppercase; letter-spacing: 0.6px;
  color: var(--muted); font-weight: 600; margin-bottom: 4px;
}
.xsp-scan-value { font-size: 20px; font-weight: 700; color: var(--text); white-space: nowrap; }
.xsp-scan-value.neg { color: var(--red); }
.xsp-scan-sub { font-size: 11px; color: var(--faint); margin-top: 3px; }
.xsp-scan-warn {
  font-size: 11px; color: var(--faint); border-top: 1px solid var(--border);
  padding-top: 10px; margin-top: 4px;
}
/* Structural-risk callout: the stop-vs-width conflict must not read as fine print. */
.xsp-scan-warn.bad {
  color: var(--red); border: 1px solid var(--red); border-radius: 8px;
  background: var(--red-bg); padding: 10px 12px; margin-top: 10px;
  font-size: 12px; line-height: 1.5;
}
.xsp-scan-warn.bad strong { color: var(--red); }
.xsp-scan-foot {
  display: flex; align-items: center; justify-content: space-between;
  margin-top: 10px;
}

/* VWAP skip filter: two side-by-side verdicts, red only when all three fire. */
.xsp-vwap-block { margin-bottom: 16px; padding-bottom: 14px; border-bottom: 1px solid var(--border); }
.xsp-vwap-sides { display: flex; gap: 12px; margin-top: 8px; flex-wrap: wrap; }
.xsp-vwap-side {
  flex: 1 1 220px; border: 1px solid var(--border); border-radius: 8px; padding: 10px 12px;
}
.xsp-vwap-side.skip { border-color: var(--red); background: var(--red-bg); }
.xsp-vwap-verdict {
  display: flex; align-items: center; justify-content: space-between; gap: 8px;
  font-size: 12px; font-weight: 700; letter-spacing: .04em; text-transform: uppercase;
}
.xsp-vwap-tag { font-size: 10px; font-weight: 600; letter-spacing: .02em; color: var(--faint); text-transform: none; }
.xsp-vwap-side.skip .xsp-vwap-verdict, .xsp-vwap-side.skip .xsp-vwap-tag { color: var(--red); }
.xsp-vwap-crit { list-style: none; margin: 8px 0 0; padding: 0; font-size: 12px; line-height: 1.7; }
.xsp-vwap-crit li.on { color: var(--text); }
.xsp-vwap-crit li.off { color: var(--faint); }
.xsp-vwap-nums { font-size: 11px; color: var(--faint); margin-top: 10px; }
.xsp-vwap-note { font-size: 11px; color: var(--faint); margin-top: 4px; font-style: italic; }

.xsp-news-block { margin-bottom: 16px; padding-bottom: 14px; border-bottom: 1px solid var(--border); }
.xsp-news-clear { font-size: 13px; color: var(--faint); margin-top: 4px; }
.xsp-news-list { list-style: none; margin: 6px 0 0; padding: 0; font-size: 13px; }
.xsp-news-list li {
  display: flex; align-items: baseline; gap: 8px; flex-wrap: wrap;
  padding: 5px 0; border-bottom: 1px solid var(--border); color: var(--body);
}
.xsp-news-list li:last-child { border-bottom: none; }
.xsp-news-time { color: var(--faint); font-variant-numeric: tabular-nums; min-width: 62px; }
.xsp-news-title { font-weight: 600; color: var(--text); }
.xsp-news-tag {
  font-size: 11px; text-transform: uppercase; letter-spacing: 0.4px; font-weight: 700;
  padding: 1px 6px; border-radius: 4px;
}
.xsp-news-list li.warn .xsp-news-tag { color: var(--red); background: var(--red-bg); }
.xsp-news-list li.info .xsp-news-tag { color: var(--muted); background: rgba(255,255,255,0.06); }
.xsp-news-extra { color: var(--faint); font-size: 12px; }

/* ============================================================================
   STUDY SECTION
   ============================================================================ */
.study-overall { color: var(--muted); font-size: 13px; }
.study-overall b { color: var(--accent-strong); }

.study-deck-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 16px;
}
.study-deck { display: flex; flex-direction: column; gap: 10px; }
.study-deck-head { display: flex; justify-content: space-between; align-items: flex-start; }
.study-deck-name { font-size: 16px; font-weight: 700; color: var(--text); }
.study-deck-desc { font-size: 12px; color: var(--muted); margin-top: 2px; }
.study-deck-pct { font-size: 20px; font-weight: 700; color: var(--accent-strong); }
.study-bar {
  display: flex; height: 6px; border-radius: 3px; overflow: hidden;
  background: var(--border);
}
.study-bar-m { background: var(--accent-strong); }
.study-bar-l { background: var(--accent-bg); }
.study-deck-stats { font-size: 11px; color: var(--muted); }
.study-deck-actions { display: flex; gap: 8px; flex-wrap: wrap; }
.study-foot-note { margin-top: 18px; font-size: 12px; color: var(--muted); }
.study-foot-note a { color: var(--loss, var(--red)); }

.study-mode-head {
  display: flex; align-items: center; gap: 14px; margin-bottom: 16px; flex-wrap: wrap;
}
.study-mode-title { font-size: 15px; color: var(--text); }
.study-mode-extra { margin-left: auto; font-size: 13px; color: var(--muted); }

/* flashcards */
.study-flash-wrap { max-width: 640px; margin: 0 auto; }
.study-flash {
  position: relative; height: 320px; cursor: pointer;
  transform-style: preserve-3d; transition: transform 0.35s;
}
.study-flash.flipped { transform: rotateX(180deg); }
.study-flash-side {
  position: absolute; inset: 0; backface-visibility: hidden;
  display: flex; flex-direction: column; align-items: center; justify-content: space-between;
  padding: 22px; text-align: center;
  background: var(--card); border: 1px solid var(--card-border); border-radius: 14px;
}
.study-flash-side.back { transform: rotateX(180deg); border-color: var(--accent-strong); }
.study-flash-hint { font-size: 11px; letter-spacing: 1px; color: var(--muted); }
.study-flash-text {
  font-size: 44px; font-weight: 700; color: var(--text);
  display: flex; align-items: center; flex: 1;
}
.study-flash-text.small { font-size: 22px; line-height: 1.4; }
.study-flash-nav { display: flex; gap: 10px; justify-content: center; margin-top: 16px; flex-wrap: wrap; }

/* learn / test */
.study-q { max-width: 640px; margin: 0 auto; text-align: center; }
.study-q-hint { font-size: 12px; color: var(--muted); letter-spacing: 0.5px; }
.study-q-prompt { font-size: 40px; font-weight: 700; color: var(--text); margin: 18px 0 22px; }
.study-q-prompt.small { font-size: 20px; line-height: 1.45; }
.study-opts { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.study-opt {
  display: flex; align-items: center; gap: 10px; text-align: left;
  padding: 13px 14px; font-size: 13px; line-height: 1.35; cursor: pointer;
  color: var(--text); background: var(--bg);
  border: 1px solid var(--border); border-radius: 10px;
  transition: border-color 0.12s, background 0.12s;
}
.study-opt:hover { border-color: var(--accent); }
.study-opt.correct { border-color: var(--cyan); background: rgba(0, 162, 199, 0.12); }
.study-opt.incorrect { border-color: var(--red); background: rgba(219, 87, 85, 0.12); }
.study-opt.faded { opacity: 0.45; }
.study-opt-key {
  flex: none; width: 22px; height: 22px; border-radius: 6px;
  display: flex; align-items: center; justify-content: center;
  font-size: 11px; color: var(--muted); border: 1px solid var(--border);
}
.study-next-row { margin-top: 16px; }

.study-answer-row { display: flex; gap: 10px; max-width: 380px; margin: 0 auto; }
.study-input {
  flex: 1; padding: 11px 14px; font-size: 16px; text-transform: uppercase;
  background: var(--bg); color: var(--text);
  border: 1px solid var(--border); border-radius: 10px;
}
.study-input:focus { outline: none; border-color: var(--accent-strong); }
.study-feedback { margin-top: 14px; font-size: 14px; }
.study-feedback.ok { color: var(--cyan); }
.study-feedback.bad { color: var(--red); }

/* results + table */
.study-result { text-align: center; padding: 32px 20px; }
.study-result-big { font-size: 52px; font-weight: 800; color: var(--accent-strong); }
.study-result-sub { color: var(--muted); margin: 8px 0 18px; }
.study-table { width: 100%; border-collapse: collapse; font-size: 13px; }
.study-table th {
  text-align: left; padding: 8px 10px; color: var(--muted); font-size: 11px;
  letter-spacing: 0.5px; text-transform: uppercase; border-bottom: 1px solid var(--border);
}
.study-table td { padding: 8px 10px; border-bottom: 1px solid var(--border); color: var(--text); }
.study-code { font-weight: 700; color: var(--accent); white-space: nowrap; }
.study-row-ok td:last-child { color: var(--cyan); }
.study-row-bad td:last-child { color: var(--red); }
.study-tag {
  font-size: 10px; padding: 2px 8px; border-radius: 999px;
  border: 1px solid var(--border); color: var(--muted);
}
.study-tag-m { border-color: var(--cyan); color: var(--cyan); }
.study-tag-l { border-color: var(--accent); color: var(--accent); }

/* match */
.study-match-grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; max-width: 860px; margin: 0 auto;
}
.study-tile {
  min-height: 110px; padding: 12px; cursor: pointer; user-select: none;
  display: flex; align-items: center; justify-content: center; text-align: center;
  font-size: 13px; line-height: 1.35; color: var(--text);
  background: var(--card); border: 1px solid var(--card-border); border-radius: 12px;
  transition: border-color 0.12s, transform 0.12s, opacity 0.2s;
}
.study-tile:hover { border-color: var(--accent); }
.study-tile.sel { border-color: var(--accent-strong); background: rgba(0, 162, 199, 0.10); }
.study-tile.wrong { border-color: var(--red); animation: study-shake 0.3s; }
.study-tile.gone { visibility: hidden; pointer-events: none; }
@keyframes study-shake {
  0%, 100% { transform: translateX(0); }
  25% { transform: translateX(-5px); }
  75% { transform: translateX(5px); }
}
@media (max-width: 720px) {
  .study-match-grid { grid-template-columns: repeat(3, 1fr); }
  .study-opts { grid-template-columns: 1fr; }
  .study-flash { height: 260px; }
  .study-flash-text { font-size: 32px; }
}
.study-page-head { display: flex; align-items: baseline; gap: 16px; margin-bottom: 18px; flex-wrap: wrap; }
.study-prev-btn { margin-left: auto; align-self: center; }

/* one row per chapter: standard practice | long form */
.exam-rows { display: flex; flex-direction: column; gap: 16px; }
.exam-row { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 16px; align-items: stretch; }
.exam-row.paired { grid-template-columns: minmax(0, 1fr) 1px minmax(0, 1fr); }
.exam-vsep { background: var(--slate); width: 1px; }
@media (max-width: 760px) {
  .exam-row, .exam-row.paired { grid-template-columns: minmax(0, 1fr); }
  .exam-vsep { width: auto; height: 1px; }
}

/* ============================================================
   EXAM — timed multiple-choice exams on the Study page
   ============================================================ */
.study-section-head {
  font-size: 11px; letter-spacing: 1px; text-transform: uppercase;
  color: var(--muted); margin: 4px 0 10px;
}
.study-deck-grid + .study-section-head { margin-top: 26px; }
.exam-card .study-deck-pct.exam-ok { color: var(--cyan); }
.exam-card .study-deck-pct.exam-bad { color: var(--red); }
.exam-ok { color: var(--cyan); }
.exam-bad { color: var(--red); }

/* start screen */
.exam-start { max-width: 720px; }
.exam-start-title { font-size: 17px; font-weight: 700; color: var(--text); }
.exam-start-facts { display: flex; gap: 10px; margin: 18px 0; flex-wrap: wrap; }
.exam-fact {
  flex: 1 1 120px; text-align: center; padding: 14px 10px;
  background: var(--panel); border: 1px solid var(--border); border-radius: 10px;
}
.exam-fact-v { font-size: 26px; font-weight: 800; color: var(--accent-strong); line-height: 1; }
.exam-fact-k { font-size: 11px; color: var(--muted); margin-top: 6px; letter-spacing: 0.4px; }
.exam-start-note { font-size: 13px; color: var(--body); line-height: 1.6; margin: 0 0 14px; }
.exam-check {
  display: flex; align-items: center; gap: 8px; font-size: 13px;
  color: var(--body); margin-bottom: 18px; cursor: pointer;
}
.exam-check input { accent-color: var(--accent-strong); }
.exam-hist { margin-top: 18px; }
.exam-hist-head {
  font-size: 11px; letter-spacing: 1px; text-transform: uppercase;
  color: var(--muted); margin-bottom: 10px;
}

/* running exam */
.exam-bar {
  display: flex; align-items: center; gap: 14px; margin-bottom: 16px;
  padding-bottom: 12px; border-bottom: 1px solid var(--border); flex-wrap: wrap;
}
.exam-bar-title { font-weight: 700; color: var(--text); }
.exam-bar-mid { color: var(--muted); font-size: 13px; }
.exam-bar-right { margin-left: auto; display: flex; align-items: center; gap: 12px; }
.exam-timer {
  font-variant-numeric: tabular-nums; font-size: 22px; font-weight: 800;
  color: var(--accent-strong); min-width: 74px; text-align: right;
}
.exam-timer.paused { color: var(--muted); }
.exam-untimed { font-size: 13px; color: var(--muted); }
.exam-paused {
  display: none; align-items: center; gap: 14px; flex-wrap: wrap;
  padding: 12px 16px; margin-bottom: 14px; border-color: var(--amber);
}
.exam-paused-text { flex: 1 1 260px; font-size: 13px; color: var(--body); }
.exam-paused-text b { color: var(--amber); }
.exam-page.is-paused .exam-paused { display: flex; }

/* section picker (modal) */
.exam-modal {
  position: fixed; inset: 0; z-index: 200; display: flex; align-items: center; justify-content: center;
  padding: 16px; background: rgba(10, 14, 24, 0.55);
}
.exam-modal-card {
  width: 100%; max-width: 520px; max-height: 100%; overflow-y: auto;
  background: var(--card); border: 1px solid var(--card-border); border-radius: var(--radius);
  box-shadow: var(--shadow-lg); padding: 22px;
}
.exam-pick-tools { display: flex; gap: 6px; margin-bottom: 8px; }
.exam-pick-list { display: flex; flex-direction: column; gap: 6px; margin-bottom: 14px; }
.exam-pick-row {
  display: flex; align-items: center; gap: 10px; padding: 9px 12px; cursor: pointer;
  background: var(--panel); border: 1px solid var(--border); border-radius: 10px;
  font-size: 14px; color: var(--text);
}
.exam-pick-row:hover { border-color: var(--accent); }
.exam-pick-row input { accent-color: var(--accent-strong); }
.exam-pick-name { flex: 1; }
.exam-pick-n { font-variant-numeric: tabular-nums; color: var(--muted); font-size: 12px; min-width: 28px; text-align: right; }
.exam-pick-weak, .exam-pick-ok { font-size: 11px; padding: 2px 8px; border-radius: 999px; border: 1px solid var(--border); white-space: nowrap; }
.exam-pick-weak { color: var(--red); border-color: var(--red); }
.exam-pick-ok { color: var(--muted); }
.exam-pick-focus { margin-bottom: 10px; }
.exam-pick-sum { font-size: 13px; color: var(--body); margin-bottom: 14px; }

/* one-section practice picker */
.exam-sections { max-width: 720px; margin-top: 18px; }
.exam-sect-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(210px, 1fr)); gap: 8px; }
.exam-sect-btn { display: flex; justify-content: space-between; align-items: center; gap: 10px; text-align: left; }
.exam-sect-btn b { color: var(--accent-strong); font-variant-numeric: tabular-nums; }
.exam-timer.warn { color: var(--amber); }
.exam-timer.critical { color: var(--red); animation: exam-pulse 1s infinite; }
@keyframes exam-pulse { 50% { opacity: 0.45; } }

.exam-layout { display: flex; flex-direction: column; gap: 14px; }
.exam-qcard { min-height: 380px; display: flex; flex-direction: column; }
.exam-qhead { display: flex; align-items: center; gap: 12px; margin-bottom: 14px; flex-wrap: wrap; }
.exam-qnum { font-size: 12px; color: var(--muted); letter-spacing: 0.4px; }
.exam-qtopic {
  font-size: 10px; padding: 2px 8px; border-radius: 999px;
  border: 1px solid var(--border); color: var(--accent); white-space: nowrap;
}
.exam-qtext { font-size: 18px; line-height: 1.55; color: var(--text); margin-bottom: 20px; }
.exam-opts { display: flex; flex-direction: column; gap: 9px; }
.exam-opt {
  display: flex; align-items: flex-start; gap: 12px; width: 100%; text-align: left;
  padding: 13px 15px; font-size: 14px; line-height: 1.45; color: var(--text);
  background: var(--panel); border: 1px solid var(--border);
  border-radius: 10px; cursor: pointer; transition: var(--trans);
}
.exam-opt:hover { border-color: var(--accent); background: var(--hover-row); }
.exam-opt:disabled { cursor: default; }
.exam-opt:disabled:hover { border-color: var(--border); background: var(--panel); }
.exam-opt.right, .exam-opt.right:disabled:hover { border-color: var(--ok-green); background: rgba(46, 158, 106, 0.13); }
.exam-opt.wrong, .exam-opt.wrong:disabled:hover { border-color: var(--red); background: rgba(219, 87, 85, 0.12); }
.exam-opt.right .exam-opt-key { background: var(--ok-green); border-color: var(--ok-green); color: var(--on-ok); }
.exam-opt.wrong .exam-opt-key { background: var(--red); border-color: var(--red); color: var(--on-bad); }
.exam-opt-mark { margin-left: auto; font-weight: 700; padding-left: 8px; }
.exam-opt.right .exam-opt-mark { color: var(--ok-green); }
.exam-opt.wrong .exam-opt-mark { color: var(--red); }
.exam-feedback { margin-top: 14px; padding: 12px 14px; border-radius: 10px; border: 1px solid var(--border); }
.exam-feedback.right { border-color: rgba(46, 158, 106, 0.55); background: rgba(46, 158, 106, 0.08); }
.exam-feedback.wrong { border-color: rgba(219, 87, 85, 0.55); background: rgba(219, 87, 85, 0.08); }
.exam-fb-head { font-size: 15px; font-weight: 700; }
.exam-feedback.right .exam-fb-head { color: var(--ok-green); }
.exam-feedback.wrong .exam-fb-head { color: var(--red); }
.exam-fb-line { margin-top: 6px; font-size: 13.5px; line-height: 1.45; color: var(--text); }
.exam-feedback .exam-rev-src { margin-top: 8px; padding-top: 8px; }
.exam-opt.selected { border-color: var(--accent-strong); background: rgba(0, 162, 199, 0.12); }
.exam-opt-key {
  flex: 0 0 22px; height: 22px; border-radius: 6px; font-size: 12px; font-weight: 700;
  display: flex; align-items: center; justify-content: center;
  background: var(--card); border: 1px solid var(--border); color: var(--muted);
}
.exam-opt.selected .exam-opt-key {
  background: var(--accent-strong); border-color: var(--accent-strong); color: #05161b;
}
.exam-opt-text { flex: 1; }
.exam-qfoot { display: flex; gap: 10px; align-items: center; margin-top: auto; padding-top: 20px; }
.exam-qfoot .btn:last-child { margin-left: auto; }
.exam-qhint { font-size: 11px; color: var(--faint); margin-top: 10px; text-align: center; }

/* question navigator */
.exam-side { position: static; padding-bottom: 12px; }
.exam-side-top { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; margin-bottom: 10px; }
.exam-side-head {
  font-size: 11px; letter-spacing: 1px; text-transform: uppercase;
  color: var(--muted);
}
.exam-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(30px, 1fr)); gap: 4px; }
.exam-cell {
  height: 26px; font-size: 11px; color: var(--muted); cursor: pointer;
  background: var(--panel); border: 1px solid var(--border); border-radius: 6px;
  display: flex; align-items: center; justify-content: center; transition: var(--trans);
}
.exam-cell:hover { border-color: var(--accent); color: var(--text); }
.exam-cell.answered {
  background: rgba(0, 162, 199, 0.16); border-color: rgba(0, 162, 199, 0.5); color: var(--text);
}
.exam-cell.right { background: rgba(46, 158, 106, 0.2); border-color: rgba(46, 158, 106, 0.7); color: var(--text); }
.exam-cell.wrong { background: rgba(219, 87, 85, 0.2); border-color: rgba(219, 87, 85, 0.7); color: var(--text); }
.exam-cell.current { outline: 2px solid var(--accent); outline-offset: 1px; color: var(--text); }
.exam-legend {
  display: flex; flex-direction: row; flex-wrap: wrap; gap: 6px 16px; margin-top: 12px;
  font-size: 11px; color: var(--muted);
}
.exam-legend span { display: flex; align-items: center; gap: 7px; }
.exam-legend .dot {
  width: 10px; height: 10px; border-radius: 3px;
  background: var(--panel); border: 1px solid var(--border);
}
.exam-legend .dot.answered { background: rgba(0, 162, 199, 0.16); border-color: rgba(0, 162, 199, 0.5); }
.exam-legend .dot.right { background: rgba(46, 158, 106, 0.2); border-color: rgba(46, 158, 106, 0.7); }
.exam-legend .dot.wrong { background: rgba(219, 87, 85, 0.2); border-color: rgba(219, 87, 85, 0.7); }
.exam-side-foot { font-size: 12px; color: var(--muted); }
.exam-side-foot b { color: var(--text); }

/* result */
.exam-score { text-align: center; padding: 30px 20px; }
.exam-score.pass { border-color: rgba(0, 162, 199, 0.45); }
.exam-score.fail { border-color: rgba(219, 87, 85, 0.45); }
.exam-score-big { font-size: 58px; font-weight: 800; line-height: 1; color: var(--accent-strong); }
.exam-score.fail .exam-score-big { color: var(--red); }
.exam-score-verdict { font-size: 15px; font-weight: 700; letter-spacing: 2px; margin-top: 10px; color: var(--cyan); }
.exam-score.fail .exam-score-verdict { color: var(--red); }
.exam-score-verdict span { font-weight: 400; letter-spacing: 0; color: var(--muted); }
.exam-score-line { color: var(--muted); font-size: 13px; margin: 10px 0 20px; }
.exam-tbar { height: 6px; border-radius: 999px; background: var(--panel); overflow: hidden; }
.exam-tbar-f { height: 100%; background: var(--accent-strong); }
.exam-tbar-f.low { background: var(--red); }

/* review list */
.exam-rev-bar { display: flex; align-items: center; gap: 8px; margin: 20px 0 12px; flex-wrap: wrap; }
.exam-rev-bar b { color: var(--text); margin-right: 4px; }
.exam-rev {
  background: var(--card); border: 1px solid var(--card-border);
  border-left: 3px solid var(--red); border-radius: var(--radius);
  padding: 16px 18px; margin-bottom: 10px;
}
.exam-rev.ok { border-left-color: var(--cyan); }
.exam-rev-head { display: flex; align-items: center; gap: 10px; margin-bottom: 8px; flex-wrap: wrap; }
.exam-rev-n { font-size: 12px; font-weight: 700; color: var(--muted); }
.exam-rev-tag {
  margin-left: auto; font-size: 10px; letter-spacing: 0.5px; text-transform: uppercase;
  padding: 2px 9px; border-radius: 999px; border: 1px solid;
}
.exam-rev-tag.ok { color: var(--cyan); border-color: var(--cyan); }
.exam-rev-tag.bad { color: var(--red); border-color: var(--red); }
.exam-rev-src {
  margin-top: 10px; padding-top: 8px; border-top: 1px dashed rgba(128,128,128,.35);
  font-size: 12.5px; font-weight: 600; color: var(--muted); letter-spacing: .2px;
}
.exam-rev-q { font-size: 15px; line-height: 1.5; color: var(--text); margin-bottom: 12px; }
.exam-rev-opt {
  display: flex; align-items: flex-start; gap: 10px; padding: 8px 12px;
  font-size: 13px; line-height: 1.45; color: var(--body);
  border: 1px solid transparent; border-radius: 8px;
}
.exam-rev-opt.correct { background: rgba(0, 162, 199, 0.10); border-color: rgba(0, 162, 199, 0.45); color: var(--text); }
.exam-rev-opt.chosen-bad { background: rgba(219, 87, 85, 0.10); border-color: rgba(219, 87, 85, 0.45); }
.exam-rev-key { flex: 0 0 16px; font-weight: 700; color: var(--muted); }
.exam-rev-mark { margin-left: auto; font-weight: 700; }
.exam-rev-opt.correct .exam-rev-mark { color: var(--cyan); }
.exam-rev-opt.chosen-bad .exam-rev-mark { color: var(--red); }
.exam-rev-empty { color: var(--muted); padding: 24px; text-align: center; }

@media (max-width: 860px) {
  .exam-grid { grid-template-columns: repeat(auto-fill, minmax(28px, 1fr)); }
  .exam-qfoot { flex-wrap: wrap; }
}

/* ============================================================
   RECITE — word-for-word memorization drills
   ============================================================ */
.rc-card { display: flex; flex-direction: column; gap: 10px; }
.rc-passage {
  font-size: 15px; line-height: 1.75; color: var(--text);
  padding: 14px 16px; background: var(--panel);
  border: 1px solid var(--border); border-left: 3px solid var(--accent-strong);
  border-radius: 10px;
}
.rc-hooks { display: flex; flex-direction: column; gap: 6px; margin-top: 2px; }
.rc-hook { font-size: 12px; color: var(--muted); line-height: 1.5; }
.rc-hook b {
  display: inline-block; min-width: 92px; color: var(--accent);
  font-size: 10px; letter-spacing: 0.6px; text-transform: uppercase;
}

/* four-day plan */
.rc-plan { margin-bottom: 20px; }
.rc-day {
  display: flex; align-items: flex-start; gap: 10px; padding: 9px 0;
  border-bottom: 1px solid var(--border); cursor: pointer; font-size: 13px;
}
.rc-day:last-of-type { border-bottom: none; }
.rc-day input { margin-top: 2px; accent-color: var(--accent-strong); }
.rc-day-n {
  flex: 0 0 52px; font-weight: 700; color: var(--text); font-size: 12px;
  letter-spacing: 0.4px; text-transform: uppercase;
}
.rc-day-t { flex: 1; color: var(--body); line-height: 1.55; }
.rc-day.done .rc-day-n, .rc-day.done .rc-day-t { color: var(--faint); text-decoration: line-through; }
.rc-plan-note { margin-top: 12px; font-size: 12px; color: var(--muted); line-height: 1.6; }

/* shared drill frame */
.rc-drill { max-width: 760px; }
.rc-instruction { font-size: 12px; color: var(--muted); line-height: 1.6; margin-bottom: 18px; }
.rc-nav { display: flex; gap: 10px; align-items: center; margin-top: 20px; }
.rc-nav .btn:last-child { margin-left: auto; }

/* snowball */
.rc-chunks { display: flex; flex-direction: column; gap: 8px; }
.rc-chunk {
  padding: 12px 16px; border-radius: 10px; font-size: 16px; line-height: 1.6;
  border: 1px solid transparent;
}
.rc-chunk.known { background: var(--panel); color: var(--body); }
.rc-chunk.target.shown {
  background: rgba(0, 162, 199, 0.12); border-color: var(--accent-strong); color: var(--text);
}
.rc-chunk.target.hidden {
  border: 1px dashed var(--slate); color: var(--faint); cursor: pointer;
  font-size: 12px; letter-spacing: 0.5px; text-align: center; padding: 20px 16px;
}
.rc-chunk.target.hidden:hover { border-color: var(--accent); color: var(--accent); }

/* fade */
.rc-fade-text { font-size: 19px; line-height: 2.1; color: var(--text); }
.rc-word.was-blank { color: var(--accent); }
.rc-blank {
  font-family: ui-monospace, "Cascadia Mono", Consolas, monospace;
  color: var(--accent); cursor: pointer;
  border-bottom: 1px solid var(--slate); padding-bottom: 1px;
}
.rc-blank:hover { color: var(--accent-strong); border-color: var(--accent-strong); }
.rc-levels { display: flex; gap: 6px; margin-top: 22px; }
.rc-pip {
  width: 34px; height: 30px; border-radius: 7px; cursor: pointer; font-size: 12px;
  background: var(--panel); border: 1px solid var(--border); color: var(--muted);
  transition: var(--trans);
}
.rc-pip:hover { border-color: var(--accent); color: var(--text); }
.rc-pip.on {
  background: var(--accent-strong); border-color: var(--accent-strong);
  color: #05161b; font-weight: 700;
}

/* typing test */
.rc-input {
  width: 100%; padding: 14px 16px; font-size: 15px; line-height: 1.7;
  color: var(--text); background: var(--input-bg);
  border: 1px solid var(--border); border-radius: 10px; resize: vertical;
}
.rc-input:focus { outline: none; border-color: var(--accent-strong); }
.rc-marks { font-size: 16px; line-height: 2.1; }
.rc-m { padding: 2px 5px; border-radius: 5px; }
.rc-m.ok { color: var(--text); }
.rc-m.miss { background: rgba(219, 87, 85, 0.16); color: var(--red); }
.rc-m.extra { background: rgba(224, 179, 74, 0.16); color: var(--amber); text-decoration: line-through; }
.rc-legend { margin-top: 16px; font-size: 11px; color: var(--muted); display: flex; gap: 10px; }

@media (max-width: 720px) {
  .rc-fade-text { font-size: 17px; line-height: 2; }
  .rc-nav { flex-wrap: wrap; }
  .rc-hook b { min-width: 0; display: block; }
}