/* ═══════════════════════════════════════════════════════════════════════════
   Branding en Redes Sociales — Estilos del Curso v1.0
   Basado en la arquitectura visual de EML v6.2
   ═══════════════════════════════════════════════════════════════════════════ */

/* ─── VARIABLES DE COLOR ─────────────────────────────────────────────────── */
:root {
  --bg:         #0f0f13;
  --surface:    #1a1a24;
  --surface2:   #22222f;
  --border:     #2e2e3e;
  --border2:    #3a3a50;
  --text:       #e8e8f0;
  --text2:      #a0a0b8;
  --gray:       #6b6b88;

  /* Colores de marca — PERSONALIZA ESTOS para cada nuevo curso */
  --blue:       #7c3aed;   /* Violeta principal (BRS) */
  --blue-dim:   #4c1d95;
  --blue-glow:  rgba(124,58,237,0.25);
  --cyan:       #0891b2;
  --green:      #22c55e;
  --yellow:     #fbbf24;
  --red:        #ef4444;
  --orange:     #f97316;

  --radius:     12px;
  --radius-sm:  8px;
  --shadow:     0 4px 24px rgba(0,0,0,0.4);
  --font-main:  'Inter', system-ui, sans-serif;
  --font-mono:  'Space Mono', 'Courier New', monospace;
}

/* ─── RESET BASE ─────────────────────────────────────────────────────────── */
.brs-root *, .brs-root *::before, .brs-root *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
.brs-root {
  font-family: var(--font-main);
  color: var(--text);
  background: var(--bg);
  min-height: 100vh;
  padding: 0 0 60px;
  line-height: 1.6;
}
.brs-root h1, .brs-root h2, .brs-root h3, .brs-root h4 { line-height: 1.3; }
.brs-root a { color: var(--blue); text-decoration: none; }
.brs-root a:hover { text-decoration: underline; }
.brs-root strong { color: var(--text); }
.brs-root ul, .brs-root ol { padding-left: 1.4em; }
.brs-root li { margin-bottom: 6px; }
.brs-root p { margin-bottom: 10px; }

/* ─── PROGRESS BAR ───────────────────────────────────────────────────────── */
.brs-progbar {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(15,15,19,0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  padding: 10px 16px;
}
.brs-progbar-inner {
  max-width: 900px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}
.brs-prog-dots {
  display: flex;
  gap: 6px;
  flex: 1;
  flex-wrap: wrap;
}
.brs-prog-dot {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--surface2);
  border: 2px solid var(--border2);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.65rem;
  font-weight: 700;
  font-family: var(--font-mono);
  color: var(--gray);
  cursor: default;
  transition: all 0.3s;
}
.brs-prog-dot.partial {
  border-color: var(--yellow);
  color: var(--yellow);
  background: rgba(251,191,36,0.1);
}
.brs-prog-dot.done {
  border-color: var(--green);
  background: rgba(34,197,94,0.15);
  color: var(--green);
  box-shadow: 0 0 8px rgba(34,197,94,0.3);
}
.brs-prog-meta {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  font-size: 0.72rem;
  color: var(--gray);
  font-family: var(--font-mono);
  line-height: 1.4;
  min-width: 80px;
}
.brs-diploma-btn {
  background: linear-gradient(135deg, var(--blue), var(--cyan));
  color: #fff;
  border: none;
  border-radius: var(--radius-sm);
  padding: 8px 14px;
  font-size: 0.8rem;
  font-weight: 700;
  cursor: pointer;
  transition: opacity 0.2s, transform 0.15s;
  white-space: nowrap;
}
.brs-diploma-btn:disabled { opacity: 0.35; cursor: not-allowed; }
.brs-diploma-btn:not(:disabled):hover { transform: translateY(-1px); opacity: 0.9; }
.brs-logout-btn {
  background: var(--surface2);
  color: var(--text2);
  border: 1px solid var(--border2);
  border-radius: var(--radius-sm);
  padding: 8px 10px;
  font-size: 0.75rem;
  cursor: pointer;
  white-space: nowrap;
}
.brs-logout-btn:hover { color: var(--text); border-color: var(--blue); }

/* ─── COURSE HEADER ──────────────────────────────────────────────────────── */
.brs-course-header {
  max-width: 900px;
  margin: 0 auto;
  padding: 40px 20px 24px;
  text-align: center;
}
.brs-course-header h1 {
  font-size: clamp(1.6rem, 4vw, 2.4rem);
  font-weight: 800;
  background: linear-gradient(135deg, var(--blue), var(--cyan));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 8px;
}
.brs-course-header p {
  color: var(--gray);
  font-family: var(--font-mono);
  font-size: 0.82rem;
  margin: 0;
}

/* ─── LESSONS GRID & ACCORDION ───────────────────────────────────────────── */
.brs-lessons-grid {
  max-width: 900px;
  margin: 0 auto;
  padding: 0 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.lesson-btn {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color 0.25s, box-shadow 0.25s;
  cursor: pointer;
}
.lesson-btn:hover, .lesson-btn.open {
  border-color: var(--blue);
  box-shadow: 0 0 0 2px var(--blue-glow);
}
.lesson-hdr {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px 18px;
  user-select: none;
}
.lesson-num {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--blue);
  background: var(--blue-glow);
  border: 1px solid var(--blue-dim);
  border-radius: 6px;
  padding: 4px 8px;
  white-space: nowrap;
}
.lesson-info { flex: 1; }
.lesson-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text);
}
.lesson-mission {
  font-size: 0.78rem;
  color: var(--gray);
  margin-top: 2px;
}
.lesson-chevron {
  font-size: 1.4rem;
  color: var(--gray);
  transition: transform 0.3s;
}
.lesson-btn.open .lesson-chevron { transform: rotate(90deg); }
.brs-lesson-content { display: none; }
.lesson-btn.open .brs-lesson-content { display: block; }

/* ─── TABS ───────────────────────────────────────────────────────────────── */
.tabs-bar {
  display: flex;
  gap: 4px;
  padding: 8px 12px 0;
  border-bottom: 1px solid var(--border);
  overflow-x: auto;
  scrollbar-width: none;
}
.tabs-bar::-webkit-scrollbar { display: none; }
.tab-btn {
  background: transparent;
  border: none;
  border-bottom: 2px solid transparent;
  color: var(--text2);
  padding: 8px 12px;
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
  transition: color 0.2s, border-color 0.2s;
}
.tab-btn:hover { color: var(--text); }
.tab-btn.active { color: var(--blue); border-bottom-color: var(--blue); }
.panels-wrap { padding: 20px; }
.tab-panel { display: none; }
.tab-panel.active { display: block; }

/* ─── TAB CONTENT ────────────────────────────────────────────────────────── */
.tab-panel h2 { font-size: 1.25rem; color: var(--blue); margin-bottom: 14px; }
.tab-panel h3 { font-size: 1rem; color: var(--text); margin: 18px 0 8px; }
.tab-panel .lead {
  font-size: 1.05rem;
  color: var(--text2);
  border-left: 3px solid var(--blue);
  padding-left: 12px;
  font-style: italic;
  margin-bottom: 16px;
}
.styled-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
  margin-top: 8px;
}
.styled-table th {
  background: var(--surface2);
  color: var(--blue);
  padding: 10px 12px;
  text-align: left;
  border-bottom: 2px solid var(--border2);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.styled-table td {
  padding: 10px 12px;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
  color: var(--text2);
}
.styled-table td strong { color: var(--cyan); }
.styled-table tr:last-child td { border-bottom: none; }
.styled-table tr:hover td { background: rgba(124,58,237,0.05); }

/* ─── MISSION BOX ────────────────────────────────────────────────────────── */
.mission-box {
  background: var(--surface2);
  border: 1px solid var(--border2);
  border-radius: var(--radius);
  padding: 20px;
}
.mission-tag {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--blue);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 10px;
  background: var(--blue-glow);
  display: inline-block;
  padding: 3px 8px;
  border-radius: 4px;
}
.mission-box h4 { font-size: 1.1rem; color: var(--text); margin-bottom: 10px; }
.mission-box ol, .mission-box ul { color: var(--text2); }

/* ─── GRADE BANNER ───────────────────────────────────────────────────────── */
.grade-banner {
  margin: 0 0 12px;
  padding: 14px 18px;
  background: var(--surface2);
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}
.grade-circle { text-align: center; min-width: 60px; }
.grade-num { font-size: 1.5rem; font-weight: 800; }
.grade-lbl { font-size: 0.7rem; color: var(--gray); font-family: var(--font-mono); }
.grade-details { flex: 1; min-width: 200px; }
.grade-details h4 { font-size: 0.85rem; margin-bottom: 8px; color: var(--text2); }
.grade-row { display: flex; align-items: center; gap: 8px; margin-bottom: 6px; font-size: 0.78rem; color: var(--gray); }
.grade-bar-wrap { flex: 1; height: 6px; background: var(--border); border-radius: 3px; overflow: hidden; }
.grade-bar-fill { height: 100%; background: var(--blue); border-radius: 3px; transition: width 0.5s; }
.grade-letter { font-size: 2rem; font-weight: 900; min-width: 48px; text-align: center; }
.grade-A { color: #22c55e; } .grade-B { color: #86efac; } .grade-C { color: #fbbf24; } .grade-D { color: #fb923c; } .grade-F { color: #ef4444; }

/* ─── QUIZ ───────────────────────────────────────────────────────────────── */
.brs-quiz-wrap, .brs-match-wrap { padding: 8px 0; }
.quiz-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
  gap: 10px;
  flex-wrap: wrap;
}
.quiz-header h2 { font-size: 1.1rem; color: var(--blue); margin: 0; }
.quiz-progress {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--gray);
  background: var(--surface2);
  padding: 4px 10px;
  border-radius: 20px;
}
.quiz-q {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 14px;
  line-height: 1.5;
  background: var(--surface2);
  padding: 14px;
  border-radius: var(--radius-sm);
  border-left: 3px solid var(--blue);
}
.quiz-opts { display: flex; flex-direction: column; gap: 8px; margin-bottom: 12px; }
.quiz-opt-btn {
  background: var(--surface2);
  border: 1px solid var(--border2);
  border-radius: var(--radius-sm);
  color: var(--text2);
  padding: 12px 16px;
  text-align: left;
  font-size: 0.88rem;
  cursor: pointer;
  transition: all 0.15s;
}
.quiz-opt-btn:hover:not(:disabled) { border-color: var(--blue); color: var(--text); background: rgba(124,58,237,0.08); }
.quiz-opt-btn.correct { background: rgba(34,197,94,0.15); border-color: var(--green); color: #86efac; }
.quiz-opt-btn.wrong   { background: rgba(239,68,68,0.15);  border-color: var(--red);   color: #fca5a5; }
.quiz-opt-btn:disabled { cursor: default; }
.quiz-exp {
  background: rgba(124,58,237,0.08);
  border: 1px solid var(--blue-dim);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  font-size: 0.84rem;
  color: var(--text2);
  margin-bottom: 12px;
  line-height: 1.6;
}
.quiz-next-btn {
  background: linear-gradient(135deg, var(--blue), var(--cyan));
  color: #fff;
  border: none;
  border-radius: var(--radius-sm);
  padding: 12px 20px;
  font-size: 0.9rem;
  font-weight: 700;
  cursor: pointer;
  transition: opacity 0.2s, transform 0.15s;
}
.quiz-next-btn:hover:not(:disabled) { opacity: 0.88; transform: translateY(-1px); }
.quiz-next-btn:disabled { opacity: 0.4; cursor: not-allowed; }
.quiz-result {
  text-align: center;
  padding: 28px 20px;
  background: var(--surface2);
  border-radius: var(--radius);
  border: 1px solid var(--border2);
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 0.4s, transform 0.4s;
}
.quiz-result.show { opacity: 1; transform: translateY(0); }
.qr-emoji { font-size: 2.5rem; margin-bottom: 8px; }
.qr-title { font-size: 1.1rem; font-weight: 700; margin-bottom: 6px; }
.qr-score { font-size: 2rem; font-weight: 900; }
.qr-msg   { font-size: 0.82rem; color: var(--gray); margin-top: 6px; font-family: var(--font-mono); }

/* ─── MATCH ──────────────────────────────────────────────────────────────── */
.match-section { margin-bottom: 24px; }
.match-section-title {
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--blue);
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 10px;
}
.match-game { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.match-col-label {
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--gray);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 6px;
  font-family: var(--font-mono);
}
.match-item {
  background: var(--surface2);
  border: 1px solid var(--border2);
  border-radius: var(--radius-sm);
  padding: 10px 12px;
  font-size: 0.82rem;
  cursor: pointer;
  transition: all 0.15s;
  color: var(--text2);
  margin-bottom: 6px;
  line-height: 1.4;
}
.match-item:hover:not(.matched) { border-color: var(--blue); color: var(--text); }
.match-item.selected { border-color: var(--blue); background: rgba(124,58,237,0.12); color: var(--text); }
.match-item.matched  { background: rgba(34,197,94,0.1); border-color: #4ade80; color: #86efac; cursor: default; }
.match-item.wrong-flash { background: rgba(239,68,68,0.15); border-color: var(--red); }
.match-score-row { display: flex; align-items: center; gap: 8px; margin-top: 6px; font-size: 0.8rem; color: var(--gray); font-family: var(--font-mono); }
.match-score-val { font-weight: 700; color: var(--blue); }
.match-complete {
  display: none;
  align-items: center;
  gap: 6px;
  color: #86efac;
  font-size: 0.82rem;
  font-weight: 600;
  margin-top: 8px;
}
.match-complete.show { display: flex; }

/* ─── WORD SORT ──────────────────────────────────────────────────────────── */
.ws-wrap { padding: 8px 0; }
.ws-header h2 { font-size: 1.1rem; color: var(--blue); margin-bottom: 6px; }
.ws-header p  { font-size: 0.85rem; color: var(--text2); margin-bottom: 4px; }
.ws-intro { font-style: italic; color: var(--gray); font-size: 0.82rem; margin-bottom: 16px; }
.ws-bank {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 14px;
  background: var(--surface2);
  border: 1px dashed var(--border2);
  border-radius: var(--radius);
  min-height: 54px;
  margin-bottom: 14px;
}
.ws-chip {
  background: var(--surface);
  border: 1px solid var(--border2);
  border-radius: 20px;
  padding: 6px 14px;
  font-size: 0.82rem;
  color: var(--text2);
  cursor: grab;
  transition: all 0.15s;
  user-select: none;
}
.ws-chip:hover, .ws-chip.ws-selected {
  border-color: var(--blue);
  color: var(--text);
  background: rgba(124,58,237,0.1);
  cursor: pointer;
}
.ws-chip.ws-correct { background: rgba(34,197,94,0.12); border-color: #4ade80; color: #86efac; cursor: default; }
.ws-chip.ws-wrong   { background: rgba(239,68,68,0.12);  border-color: var(--red); color: #fca5a5; cursor: default; }
.ws-cats { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-bottom: 14px; }
.ws-cat {
  border: 2px solid;
  border-radius: var(--radius);
  overflow: hidden;
  min-height: 100px;
}
.ws-cat-label {
  padding: 8px 12px;
  font-size: 0.78rem;
  font-weight: 700;
  color: #fff;
  text-align: center;
}
.ws-cat-drop {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  padding: 10px;
  min-height: 60px;
  background: rgba(0,0,0,0.2);
  transition: background 0.15s;
}
.ws-cat-drop.ws-drag-over { background: rgba(124,58,237,0.1); }
.ws-check-btn {
  background: linear-gradient(135deg, var(--blue), var(--cyan));
  color: #fff;
  border: none;
  border-radius: var(--radius-sm);
  padding: 11px 20px;
  font-size: 0.9rem;
  font-weight: 700;
  cursor: pointer;
  width: 100%;
  transition: opacity 0.2s;
}
.ws-check-btn:hover:not(:disabled) { opacity: 0.88; }
.ws-check-btn:disabled { opacity: 0.4; cursor: not-allowed; }
.ws-result {
  margin-top: 14px;
  padding: 18px;
  background: var(--surface2);
  border-radius: var(--radius);
  text-align: center;
}

/* ─── FILL IN THE BLANK ──────────────────────────────────────────────────── */
.brs-fill-wrap { padding: 8px 0; }
.fill-sentences { display: flex; flex-direction: column; gap: 14px; margin-top: 12px; }
.fill-row {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 6px;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  transition: border-color 0.2s;
}
.fill-row.fill-correct { border-color: var(--green); background: rgba(34,197,94,0.06); }
.fill-row.fill-wrong   { border-color: var(--red);   background: rgba(239,68,68,0.06); }
.fill-num {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--blue);
  font-weight: 700;
  min-width: 18px;
}
.fill-text {
  font-size: 0.88rem;
  color: var(--text2);
  line-height: 1.7;
  flex: 1;
}
.fill-input {
  background: var(--bg);
  border: 2px solid var(--border2);
  border-radius: 6px;
  color: var(--text);
  font-size: 0.88rem;
  padding: 4px 10px;
  min-width: 140px;
  max-width: 240px;
  font-family: var(--font-main);
  outline: none;
  transition: border-color 0.2s;
  vertical-align: middle;
}
.fill-input:focus { border-color: var(--blue); }
.fill-input:disabled {
  background: var(--surface2);
  cursor: default;
  opacity: 0.8;
}
.fill-hint {
  display: block;
  font-size: 0.75rem;
  color: var(--gray);
  width: 100%;
  margin-top: 2px;
}
.fill-fb {
  font-size: 0.78rem;
  font-weight: 600;
  font-family: var(--font-mono);
  white-space: nowrap;
}
.fill-result {
  margin-top: 16px;
  padding: 20px;
  background: var(--surface2);
  border: 1px solid var(--border2);
  border-radius: var(--radius);
  text-align: center;
}

/* ─── FLASHCARDS ─────────────────────────────────────────────────────────── */
.flashcard-wrap { padding: 8px 0; }
.fc-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 12px; }
.fc-header h3 { font-size: 1rem; color: var(--blue); margin: 0; }
.fc-counter { font-family: var(--font-mono); font-size: 0.75rem; color: var(--gray); background: var(--surface2); padding: 4px 10px; border-radius: 20px; }
.fc-progress-bar { height: 4px; background: var(--border); border-radius: 2px; margin-bottom: 16px; overflow: hidden; }
.fc-progress-fill { height: 100%; background: linear-gradient(90deg, var(--blue), var(--cyan)); border-radius: 2px; transition: width 0.4s; }
.fc-scene { perspective: 800px; margin-bottom: 14px; }
.fc-card {
  width: 100%;
  min-height: 140px;
  position: relative;
  transform-style: preserve-3d;
  transition: transform 0.5s;
  cursor: pointer;
}
.fc-card.flipped { transform: rotateY(180deg); }
.fc-face {
  position: absolute;
  inset: 0;
  backface-visibility: hidden;
  background: var(--surface2);
  border: 1px solid var(--border2);
  border-radius: var(--radius);
  padding: 24px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
}
.fc-back { transform: rotateY(180deg); }
.fc-hint { font-size: 0.7rem; color: var(--gray); margin-bottom: 8px; font-family: var(--font-mono); }
.fc-term { font-size: 1.4rem; font-weight: 800; color: var(--blue); }
.fc-def  { font-size: 0.92rem; color: var(--text); line-height: 1.5; }
.fc-example {
  font-size: 0.78rem;
  color: var(--gray);
  font-style: italic;
  margin-top: 8px;
  border-top: 1px solid var(--border);
  padding-top: 8px;
  width: 100%;
}
.fc-actions { display: flex; gap: 10px; margin-bottom: 10px; }
.fc-btn {
  flex: 1;
  border: none;
  border-radius: var(--radius-sm);
  padding: 10px;
  font-size: 0.85rem;
  font-weight: 700;
  cursor: pointer;
  transition: opacity 0.2s;
}
.fc-btn:hover { opacity: 0.85; }
.fc-btn-know   { background: rgba(34,197,94,0.2); color: #86efac; }
.fc-btn-review { background: rgba(251,191,36,0.2); color: #fbbf24; }
.fc-btn-flip   { background: var(--surface2); color: var(--text2); border: 1px solid var(--border2); }
.fc-nav { display: flex; gap: 10px; align-items: center; }
.fc-nav-btn {
  background: var(--surface2);
  border: 1px solid var(--border2);
  color: var(--text2);
  width: 36px; height: 36px;
  border-radius: 50%;
  cursor: pointer;
  font-size: 1.1rem;
  transition: all 0.15s;
}
.fc-nav-btn:hover:not(:disabled) { border-color: var(--blue); color: var(--text); }
.fc-nav-btn:disabled { opacity: 0.3; cursor: default; }
.fc-stats { display: flex; gap: 12px; margin-top: 10px; }
.fc-stat { text-align: center; flex: 1; background: var(--surface2); border-radius: var(--radius-sm); padding: 8px; }
.fc-stat-n { font-size: 1.1rem; font-weight: 700; color: var(--blue); }
.fc-stat-l { font-size: 0.68rem; color: var(--gray); }
.fc-stat.know .fc-stat-n   { color: var(--green); }
.fc-stat.review .fc-stat-n { color: var(--yellow); }
.fc-complete { text-align: center; padding: 28px; }
.fc-complete-icon  { font-size: 2.5rem; margin-bottom: 8px; }
.fc-complete-title { font-size: 1.1rem; font-weight: 700; margin-bottom: 6px; }
.fc-complete-sub   { font-size: 0.85rem; color: var(--gray); margin-bottom: 16px; }
.fc-restart-btn {
  background: var(--surface2);
  border: 1px solid var(--border2);
  color: var(--text2);
  padding: 10px 18px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 0.85rem;
  transition: all 0.15s;
}
.fc-restart-btn:hover { border-color: var(--blue); color: var(--text); }

/* ─── SCORE TABLE ────────────────────────────────────────────────────────── */
.brs-score-section {
  max-width: 900px;
  margin: 32px auto 0;
  padding: 0 16px;
}
.brs-score-section h2 { font-size: 1.25rem; color: var(--blue); margin-bottom: 14px; }
.brs-score-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.82rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}
.brs-score-table th {
  background: var(--surface2);
  color: var(--blue);
  padding: 10px 12px;
  text-align: left;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border-bottom: 2px solid var(--border2);
}
.brs-score-table td {
  padding: 10px 12px;
  border-bottom: 1px solid var(--border);
  color: var(--text2);
}
.brs-score-table tfoot td {
  padding: 10px 12px;
  border-top: 2px solid var(--border2);
  background: var(--surface2);
}
.brs-score-table tr:hover td { background: rgba(124,58,237,0.04); }
.submit-msg {
  display: none;
  margin-top: 8px;
  padding: 10px 14px;
  background: rgba(34,197,94,0.1);
  border: 1px solid var(--green);
  border-radius: var(--radius-sm);
  color: #86efac;
  font-size: 0.85rem;
}
.submit-msg.show { display: block; }

/* ─── RANKING SECTION ────────────────────────────────────────────────────── */
.brs-ranking-section {
  max-width: 900px;
  margin: 32px auto 0;
  padding: 0 16px;
}
.brs-ranking-section h2 { font-size: 1.25rem; color: var(--blue); margin-bottom: 14px; }
.ranking-tabs-bar {
  display: flex;
  gap: 4px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 16px;
  overflow-x: auto;
  scrollbar-width: none;
}
.ranking-tabs-bar::-webkit-scrollbar { display: none; }
.ranking-tab-btn {
  background: transparent;
  border: none;
  border-bottom: 2px solid transparent;
  color: var(--text2);
  padding: 8px 12px;
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
  font-family: var(--font-mono);
  transition: color 0.2s, border-color 0.2s;
}
.ranking-tab-btn:hover { color: var(--text); }
.ranking-tab-btn.active { color: var(--blue); border-bottom-color: var(--blue); }
.ranking-tab-panel { display: none; }
.ranking-tab-panel.active { display: block; }
.ranking-loading { padding: 20px; text-align: center; color: var(--gray); font-size: 0.85rem; }
.mini-rank-row {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  transition: background 0.15s;
}
.mini-rank-row:hover { background: var(--surface2); }
.mini-rank-row.me-row { background: rgba(124,58,237,0.1); border: 1px solid var(--blue-dim); }
.mini-pos   { font-family: var(--font-mono); font-size: 0.85rem; font-weight: 700; min-width: 30px; }
.mini-name  { flex: 1; font-size: 0.88rem; color: var(--text2); }
.mini-name.is-me { color: var(--text); font-weight: 700; }
.mini-score { font-family: var(--font-mono); font-size: 0.82rem; font-weight: 700; }
.mini-letter{ font-family: var(--font-mono); font-size: 0.88rem; font-weight: 800; min-width: 24px; text-align: right; }

/* ─── MODALES ────────────────────────────────────────────────────────────── */
.brs-modal {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 1000;
  background: rgba(0,0,0,0.75);
  align-items: center;
  justify-content: center;
  padding: 20px;
  backdrop-filter: blur(4px);
}
.brs-modal.show { display: flex; }
.brs-modal-box {
  background: var(--surface);
  border: 1px solid var(--border2);
  border-radius: var(--radius);
  padding: 28px;
  max-width: 480px;
  width: 100%;
  position: relative;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--shadow);
}
.modal-close-btn {
  position: absolute;
  top: 14px;
  right: 14px;
  background: var(--surface2);
  border: 1px solid var(--border2);
  color: var(--text2);
  width: 30px;
  height: 30px;
  border-radius: 50%;
  cursor: pointer;
  font-size: 0.85rem;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.15s;
}
.modal-close-btn:hover { color: var(--text); border-color: var(--red); }

/* ─── DIPLOMA ────────────────────────────────────────────────────────────── */
.diploma-box { text-align: center; max-width: 520px; }
.diploma-header { margin-bottom: 16px; }
.diploma-logo   { font-size: 2.5rem; margin-bottom: 6px; }
.diploma-title  { font-size: 1.3rem; font-weight: 800; color: var(--blue); }
.diploma-subtitle { font-size: 0.85rem; color: var(--gray); font-family: var(--font-mono); }
.diploma-name {
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--text);
  margin: 12px 0 4px;
  padding: 8px 20px;
  background: var(--surface2);
  border-radius: var(--radius);
  border: 1px solid var(--border2);
}
.diploma-desc { font-size: 0.85rem; color: var(--gray); margin-bottom: 16px; }
.diploma-grades { display: flex; justify-content: center; gap: 24px; margin: 16px 0; }
.dg-item { text-align: center; }
.dg-val  { font-size: 1.5rem; font-weight: 800; color: var(--blue); }
.dg-lbl  { font-size: 0.7rem; color: var(--gray); font-family: var(--font-mono); text-transform: uppercase; letter-spacing: 0.06em; }
.diploma-perm-section {
  margin-top: 14px;
  background: var(--surface2);
  border: 1px solid var(--border2);
  border-radius: var(--radius-sm);
  padding: 12px;
}
.diploma-footer {
  margin-top: 16px;
  font-size: 0.75rem;
  color: var(--gray);
  font-family: var(--font-mono);
}

/* ─── RESPONSIVE ─────────────────────────────────────────────────────────── */
@media (max-width: 600px) {
  .brs-course-header { padding: 24px 16px 16px; }
  .brs-lessons-grid  { padding: 0 10px; }
  .panels-wrap       { padding: 14px; }
  .match-game        { grid-template-columns: 1fr; }
  .ws-cats           { grid-template-columns: 1fr; }
  .diploma-grades    { gap: 14px; }
  .brs-score-table   { font-size: 0.72rem; }
  .brs-score-table th, .brs-score-table td { padding: 7px 8px; }
  .fc-stats          { gap: 6px; }
  .fill-input        { min-width: 100px; max-width: 180px; }
}
@media (max-width: 400px) {
  .brs-prog-dot { width: 30px; height: 30px; font-size: 0.58rem; }
  .lesson-title { font-size: 0.9rem; }
}