/* ============================================================
   SDIS 51 — Formation SSUAP Interactive
   style.css — Thème pompier sombre
   ============================================================ */

/* ──────────────────────────────────────────────────────────
   Variables CSS
   ────────────────────────────────────────────────────────── */
:root {
  --red:        #e63946;
  --red-dark:   #b01020;
  --orange:     #f0a500;
  --bg:         #0b0c18;
  --bg2:        #11122a;
  --card:       #181932;
  --card-hover: #20214a;
  --border:     rgba(255,255,255,0.07);
  --text:       #e4e5f0;
  --text-muted: #8081a8;
  --success:    #2ecc71;
  --error:      #e74c3c;
  --warning:    #f39c12;
  --radius-sm:  10px;
  --radius:     16px;
  --radius-lg:  24px;
  --shadow:     0 8px 40px rgba(0,0,0,0.5);
  --shadow-sm:  0 4px 16px rgba(0,0,0,0.3);
  --transition: all 0.22s ease;
  --nav-h:      60px;
}

/* ──────────────────────────────────────────────────────────
   Reset & Base
   ────────────────────────────────────────────────────────── */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', 'Segoe UI', system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  overflow-x: hidden;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
  font-family: 'Montserrat', 'Segoe UI', system-ui, sans-serif;
  font-weight: 700;
  line-height: 1.2;
}

button { cursor: pointer; font-family: inherit; }
input, textarea { font-family: inherit; }

/* ──────────────────────────────────────────────────────────
   Topnav
   ────────────────────────────────────────────────────────── */
.topnav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  height: var(--nav-h);
  background: rgba(11, 12, 24, 0.96);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
}

.topnav__brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1rem;
  letter-spacing: 0.02em;
}

.topnav__icon {
  font-size: 1.4rem;
  filter: drop-shadow(0 0 6px rgba(230, 57, 70, 0.7));
}

.topnav__title {
  background: linear-gradient(90deg, var(--red), var(--orange));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.topnav__nav {
  display: flex;
  gap: 8px;
}

.topnav__btn {
  background: transparent;
  border: 1px solid transparent;
  color: var(--text-muted);
  padding: 6px 16px;
  border-radius: 20px;
  font-size: 0.85rem;
  font-weight: 500;
  transition: var(--transition);
}

.topnav__btn:hover,
.topnav__btn.active {
  color: var(--text);
  border-color: var(--border);
  background: rgba(255,255,255,0.06);
}

/* ──────────────────────────────────────────────────────────
   Screen system
   ────────────────────────────────────────────────────────── */
main { padding-top: var(--nav-h); }

.screen {
  display: none;
  min-height: calc(100vh - var(--nav-h));
  padding: 32px 24px 60px;
  max-width: 1100px;
  margin: 0 auto;
}

.screen.active { display: block; }

/* ──────────────────────────────────────────────────────────
   Hero
   ────────────────────────────────────────────────────────── */
.hero {
  text-align: center;
  padding: 48px 0 40px;
}

.hero__badge {
  display: inline-block;
  background: rgba(230, 57, 70, 0.12);
  border: 1px solid rgba(230, 57, 70, 0.3);
  color: var(--red);
  padding: 4px 14px;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: 20px;
}

.hero__title {
  font-size: clamp(2.2rem, 5vw, 3.6rem);
  font-weight: 900;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
  line-height: 1.1;
}

.text-red {
  background: linear-gradient(90deg, var(--red), var(--orange));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero__sub {
  color: var(--text-muted);
  font-size: 1.05rem;
  max-width: 560px;
  margin: 0 auto 32px;
}

.hero__stats {
  display: flex;
  justify-content: center;
  gap: 32px;
  flex-wrap: wrap;
}

.hstat {
  text-align: center;
}

.hstat__num {
  font-size: 2.2rem;
  font-weight: 900;
  color: var(--red);
  line-height: 1;
}

.hstat__lbl {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-top: 4px;
}

/* ──────────────────────────────────────────────────────────
   Section title
   ────────────────────────────────────────────────────────── */
.section-title {
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--text-muted);
  font-weight: 600;
  margin: 8px 0 20px;
}

/* ──────────────────────────────────────────────────────────
   Modules Grid
   ────────────────────────────────────────────────────────── */
.modules-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 20px;
}

.module-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.module-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--module-color), transparent);
  opacity: 0.8;
}

.module-card:hover {
  background: var(--card-hover);
  border-color: rgba(255,255,255,0.12);
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}

.module-card__header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
}

.module-card__icon {
  font-size: 1.8rem;
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255,255,255,0.04);
  border-radius: var(--radius-sm);
  flex-shrink: 0;
}

.module-card__info { flex: 1; min-width: 0; }

.module-card__title {
  font-size: 0.95rem;
  font-weight: 700;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.module-card__sub {
  font-size: 0.72rem;
  color: var(--text-muted);
  margin-top: 2px;
}

.module-card__counts {
  display: flex;
  gap: 12px;
  margin-bottom: 14px;
  flex-wrap: wrap;
}

.module-count {
  font-size: 0.72rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 4px;
}

.module-card__actions {
  display: flex;
  gap: 8px;
}

.btn-module {
  flex: 1;
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 8px 6px;
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  font-weight: 600;
  transition: var(--transition);
  text-align: center;
}

.btn-module:hover {
  background: var(--module-color);
  border-color: var(--module-color);
  color: #fff;
  transform: scale(1.02);
}

.btn-module--disabled {
  opacity: 0.3;
  pointer-events: none;
}

/* Progress star */
.module-card__progress {
  display: flex;
  gap: 4px;
  margin-bottom: 12px;
}

.star {
  font-size: 0.9rem;
  opacity: 0.2;
  transition: var(--transition);
}
.star.filled { opacity: 1; }

/* ──────────────────────────────────────────────────────────
   Activity Header
   ────────────────────────────────────────────────────────── */
.activity-header {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 28px;
  flex-wrap: wrap;
}

.btn-back {
  background: rgba(255,255,255,0.07);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  transition: var(--transition);
  white-space: nowrap;
}

.btn-back:hover {
  background: rgba(255,255,255,0.12);
}

.activity-title {
  font-size: 1.1rem;
  font-weight: 700;
  flex: 1;
}

.activity-progress {
  font-size: 0.82rem;
  color: var(--text-muted);
}

/* ──────────────────────────────────────────────────────────
   Buttons
   ────────────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-weight: 600;
  border: 1px solid transparent;
  transition: var(--transition);
  cursor: pointer;
}

.btn-primary {
  background: var(--red);
  color: #fff;
  border-color: var(--red);
}

.btn-primary:hover {
  background: var(--red-dark);
  border-color: var(--red-dark);
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(230,57,70,0.4);
}

.btn-secondary {
  background: rgba(255,255,255,0.07);
  color: var(--text);
  border-color: var(--border);
}

.btn-secondary:hover {
  background: rgba(255,255,255,0.12);
}

.btn-outline {
  background: transparent;
  color: var(--text);
  border-color: var(--border);
}

.btn-outline:hover {
  background: rgba(255,255,255,0.06);
}

.btn:disabled {
  opacity: 0.4;
  pointer-events: none;
}

/* ──────────────────────────────────────────────────────────
   FLASHCARDS
   ────────────────────────────────────────────────────────── */
.fc-container {
  max-width: 700px;
  margin: 0 auto;
}

.fc-stats-bar {
  display: flex;
  gap: 16px;
  justify-content: center;
  margin-bottom: 24px;
}

.fc-stat {
  font-size: 0.85rem;
  font-weight: 600;
  padding: 6px 14px;
  border-radius: 20px;
  border: 1px solid;
}

.fc-stat.known {
  color: var(--success);
  border-color: rgba(46, 204, 113, 0.3);
  background: rgba(46, 204, 113, 0.08);
}

.fc-stat.review {
  color: var(--warning);
  border-color: rgba(243, 156, 18, 0.3);
  background: rgba(243, 156, 18, 0.08);
}

.fc-card-wrapper {
  perspective: 1200px;
  margin-bottom: 24px;
}

.fc-card {
  width: 100%;
  min-height: 280px;
  cursor: pointer;
  user-select: none;
  position: relative;
}

.fc-card__inner {
  position: relative;
  width: 100%;
  min-height: 280px;
  transform-style: preserve-3d;
  transition: transform 0.55s cubic-bezier(0.4, 0, 0.2, 1);
}

.fc-card.flipped .fc-card__inner {
  transform: rotateY(180deg);
}

.fc-card__front,
.fc-card__back {
  position: absolute;
  top: 0; left: 0;
  width: 100%;
  min-height: 280px;
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.fc-card__back {
  transform: rotateY(180deg);
  background: var(--card);
  border-color: rgba(46, 204, 113, 0.2);
}

.fc-card__label {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  font-weight: 600;
  margin-bottom: 12px;
}

.fc-card__text {
  font-size: 1.1rem;
  font-weight: 500;
  white-space: pre-line;
  line-height: 1.7;
  flex: 1;
}

.fc-card__hint {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 16px;
  text-align: center;
  opacity: 0.6;
}

.fc-card__trick {
  margin-top: 16px;
  padding: 10px 14px;
  background: rgba(240, 165, 0, 0.08);
  border-left: 3px solid var(--orange);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-size: 0.82rem;
  color: var(--orange);
  white-space: pre-line;
}

.fc-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  animation: fadeInUp 0.25s ease;
}

.btn-fc {
  flex: 1;
  max-width: 220px;
  padding: 14px 20px;
  border-radius: var(--radius);
  font-size: 0.95rem;
  font-weight: 700;
  border: none;
  transition: var(--transition);
}

.btn-fc--review {
  background: rgba(243, 156, 18, 0.1);
  color: var(--warning);
  border: 1px solid rgba(243, 156, 18, 0.3);
}

.btn-fc--review:hover {
  background: rgba(243, 156, 18, 0.22);
  transform: scale(1.03);
}

.btn-fc--known {
  background: rgba(46, 204, 113, 0.1);
  color: var(--success);
  border: 1px solid rgba(46, 204, 113, 0.3);
}

.btn-fc--known:hover {
  background: rgba(46, 204, 113, 0.22);
  transform: scale(1.03);
}

/* ──────────────────────────────────────────────────────────
   QUIZ
   ────────────────────────────────────────────────────────── */
.quiz-container {
  max-width: 720px;
  margin: 0 auto;
}

.quiz-timer-wrap {
  margin-left: auto;
}

.quiz-timer {
  width: 44px;
  height: 44px;
  background: var(--card);
  border: 2px solid var(--border);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 900;
  font-size: 1.1rem;
  transition: var(--transition);
}

.quiz-timer.warning {
  border-color: var(--warning);
  color: var(--warning);
  animation: pulse 0.8s ease infinite;
}

.quiz-timer.danger {
  border-color: var(--error);
  color: var(--error);
  animation: pulse 0.4s ease infinite;
}

.quiz-progress-bar {
  height: 4px;
  background: rgba(255,255,255,0.07);
  border-radius: 2px;
  margin-bottom: 16px;
  overflow: hidden;
}

.quiz-progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--red), var(--orange));
  border-radius: 2px;
  transition: width 0.35s ease;
}

.quiz-counter {
  font-size: 0.78rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 600;
  margin-bottom: 20px;
}

.quiz-question {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 28px;
  line-height: 1.4;
}

.quiz-choices {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.quiz-choice {
  background: var(--card);
  border: 1.5px solid var(--border);
  color: var(--text);
  padding: 14px 20px;
  border-radius: var(--radius);
  font-size: 0.95rem;
  font-weight: 500;
  text-align: left;
  transition: var(--transition);
  display: flex;
  align-items: center;
  gap: 12px;
  position: relative;
  overflow: hidden;
}

.quiz-choice__letter {
  width: 26px;
  height: 26px;
  background: rgba(255,255,255,0.07);
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  font-weight: 700;
  flex-shrink: 0;
  transition: var(--transition);
}

.quiz-choice:hover:not(:disabled) {
  border-color: rgba(255,255,255,0.2);
  background: var(--card-hover);
  transform: translateX(3px);
}

.quiz-choice.correct {
  background: rgba(46, 204, 113, 0.1);
  border-color: var(--success);
  color: var(--success);
}

.quiz-choice.correct .quiz-choice__letter {
  background: var(--success);
  color: #fff;
}

.quiz-choice.wrong {
  background: rgba(231, 76, 60, 0.1);
  border-color: var(--error);
  color: var(--error);
}

.quiz-choice.wrong .quiz-choice__letter {
  background: var(--error);
  color: #fff;
}

.quiz-choice:disabled { cursor: not-allowed; }

.quiz-explanation {
  margin-top: 20px;
  padding: 16px 20px;
  background: rgba(255,255,255,0.04);
  border-left: 3px solid var(--orange);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.65;
  animation: fadeInUp 0.25s ease;
}

.quiz-explanation strong {
  color: var(--orange);
}

.quiz-next {
  margin-top: 20px;
  width: 100%;
  animation: fadeInUp 0.25s ease;
}

/* ──────────────────────────────────────────────────────────
   ORDER (Remettre dans l'ordre)
   ────────────────────────────────────────────────────────── */
.order-container {
  max-width: 700px;
  margin: 0 auto;
}

.order-exercise-select {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.order-ex-btn {
  background: var(--card);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 18px 20px;
  border-radius: var(--radius);
  font-size: 0.95rem;
  font-weight: 600;
  text-align: left;
  transition: var(--transition);
  display: flex;
  align-items: center;
  gap: 14px;
}

.order-ex-btn:hover {
  background: var(--card-hover);
  border-color: rgba(255,255,255,0.15);
  transform: translateX(3px);
}

.order-ex-btn__icon {
  font-size: 1.4rem;
  width: 40px;
  flex-shrink: 0;
}

.order-no-exercise {
  text-align: center;
  padding: 48px 0;
  color: var(--text-muted);
}

.order-exercise-title {
  font-size: 1.1rem;
  margin-bottom: 8px;
}

.order-instruction {
  color: var(--text-muted);
  font-size: 0.88rem;
  margin-bottom: 20px;
}

.order-choices {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 24px;
}

.order-choice-btn {
  background: var(--card);
  border: 1.5px solid var(--border);
  color: var(--text);
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  font-size: 0.88rem;
  font-weight: 500;
  text-align: left;
  transition: var(--transition);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 10px;
}

.order-choice-btn:hover:not(:disabled) {
  border-color: var(--red);
  background: rgba(230, 57, 70, 0.07);
  transform: translateX(3px);
}

.order-choice-btn:disabled {
  opacity: 0.25;
  pointer-events: none;
}

.order-choice-btn__num {
  width: 24px;
  height: 24px;
  background: rgba(255,255,255,0.07);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.72rem;
  font-weight: 700;
  flex-shrink: 0;
  color: var(--text-muted);
}

.order-sequence {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  margin-bottom: 16px;
}

.order-sequence-title {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  margin-bottom: 12px;
  font-weight: 600;
}

.order-steps {
  display: flex;
  flex-direction: column;
  gap: 8px;
  min-height: 48px;
}

.order-step {
  background: rgba(255,255,255,0.05);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  font-size: 0.85rem;
  display: flex;
  align-items: center;
  gap: 10px;
  animation: fadeInUp 0.15s ease;
}

.order-step__num {
  width: 22px;
  height: 22px;
  background: var(--red);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.7rem;
  font-weight: 700;
  flex-shrink: 0;
  color: #fff;
}

.order-step.correct {
  background: rgba(46, 204, 113, 0.1);
  border: 1px solid rgba(46, 204, 113, 0.25);
}

.order-step.wrong {
  background: rgba(231, 76, 60, 0.1);
  border: 1px solid rgba(231, 76, 60, 0.25);
  color: var(--error);
}

.order-empty-hint {
  text-align: center;
  color: var(--text-muted);
  font-size: 0.82rem;
  padding: 12px;
  font-style: italic;
}

.order-actions {
  display: flex;
  gap: 12px;
}

.order-feedback {
  margin-top: 20px;
  padding: 16px 20px;
  border-radius: var(--radius);
  animation: fadeInUp 0.25s ease;
}

.order-feedback.success {
  background: rgba(46, 204, 113, 0.1);
  border: 1px solid rgba(46, 204, 113, 0.3);
  color: var(--success);
}

.order-feedback.error {
  background: rgba(231, 76, 60, 0.07);
  border: 1px solid rgba(231, 76, 60, 0.25);
}

.order-feedback__title {
  font-weight: 700;
  font-size: 1rem;
  margin-bottom: 8px;
}

.order-feedback__correct {
  font-size: 0.82rem;
  color: var(--text-muted);
  line-height: 1.7;
  white-space: pre-line;
}

/* ──────────────────────────────────────────────────────────
   Result / End Screens
   ────────────────────────────────────────────────────────── */
.fc-end,
.quiz-end {
  max-width: 600px;
  margin: 0 auto;
}

.result-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 40px;
  text-align: center;
  box-shadow: var(--shadow);
}

.result-icon {
  font-size: 3.5rem;
  margin-bottom: 20px;
  filter: drop-shadow(0 4px 12px rgba(0,0,0,0.4));
}

.result-card h2 {
  font-size: 1.8rem;
  margin-bottom: 8px;
}

.result-score {
  font-size: 3rem;
  font-weight: 900;
  margin: 16px 0;
  background: linear-gradient(90deg, var(--red), var(--orange));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.result-sub {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-bottom: 8px;
}

.result-actions {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: 24px;
}

.quiz-answers-review {
  text-align: left;
  margin-top: 20px;
  max-height: 260px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.review-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  background: rgba(255,255,255,0.03);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  font-size: 0.82rem;
}

.review-item__icon {
  font-size: 1rem;
  flex-shrink: 0;
  margin-top: 1px;
}

.review-item__text { flex: 1; }

.review-item__q {
  font-weight: 600;
  margin-bottom: 2px;
  font-size: 0.8rem;
}

.review-item__a {
  color: var(--text-muted);
  font-size: 0.78rem;
}

/* ──────────────────────────────────────────────────────────
   Stats / Dashboard
   ────────────────────────────────────────────────────────── */
.stats-container {
  max-width: 900px;
  margin: 0 auto;
}

.stats-global {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 16px;
  margin-bottom: 36px;
}

.stat-global-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 16px;
  text-align: center;
}

.stat-global-card__num {
  font-size: 2.2rem;
  font-weight: 900;
  line-height: 1;
  background: linear-gradient(90deg, var(--red), var(--orange));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.stat-global-card__lbl {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 6px;
  text-transform: uppercase;
  letter-spacing: 0.07em;
}

.stats-modules {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.stat-module-row {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 20px;
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.stat-module-row__icon {
  font-size: 1.4rem;
  flex-shrink: 0;
}

.stat-module-row__name {
  flex: 1;
  font-weight: 600;
  font-size: 0.9rem;
  min-width: 180px;
}

.stat-bar-wrap {
  flex: 2;
  min-width: 180px;
}

.stat-bar-label {
  font-size: 0.7rem;
  color: var(--text-muted);
  margin-bottom: 4px;
}

.stat-bar {
  height: 6px;
  background: rgba(255,255,255,0.07);
  border-radius: 3px;
  overflow: hidden;
}

.stat-bar__fill {
  height: 100%;
  background: linear-gradient(90deg, var(--red), var(--orange));
  border-radius: 3px;
  transition: width 0.6s ease;
}

.stat-stars {
  display: flex;
  gap: 4px;
}

.stat-star {
  font-size: 1.2rem;
  opacity: 0.2;
}

.stat-star.on { opacity: 1; }

.stats-empty {
  text-align: center;
  padding: 60px 0;
  color: var(--text-muted);
}

.stats-empty__icon {
  font-size: 3rem;
  margin-bottom: 16px;
  opacity: 0.5;
}

/* ──────────────────────────────────────────────────────────
   Animations
   ────────────────────────────────────────────────────────── */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(10px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes pulse {
  0%, 100% { transform: scale(1); }
  50%       { transform: scale(1.08); }
}

@keyframes slideIn {
  from { opacity: 0; transform: translateX(30px); }
  to   { opacity: 1; transform: translateX(0); }
}

.screen.active {
  animation: fadeInUp 0.3s ease;
}

/* ──────────────────────────────────────────────────────────
   Scrollbar
   ────────────────────────────────────────────────────────── */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.15); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: rgba(255,255,255,0.25); }

/* ──────────────────────────────────────────────────────────
   Responsive
   ────────────────────────────────────────────────────────── */
@media (max-width: 640px) {
  .topnav { padding: 0 16px; }
  .topnav__title { font-size: 0.85rem; }
  .screen { padding: 24px 16px 60px; }
  .hero__title { font-size: 2rem; }
  .modules-grid { grid-template-columns: 1fr; }
  .fc-card__front, .fc-card__back { padding: 24px; }
  .fc-card__text { font-size: 0.95rem; }
  .result-card { padding: 28px 20px; }
  .result-score { font-size: 2.2rem; }
  .hero__stats { gap: 20px; }
  .hstat__num { font-size: 1.8rem; }
}

@media (max-width: 400px) {
  .topnav__nav { display: none; }
  .btn-fc { font-size: 0.85rem; padding: 12px 14px; }
}