/* ============================================================
   NexlingQuest – Main Stylesheet
   Playful + modern, age-adaptive design
   ============================================================ */

:root {
  --primary: #FF6B35;
  --primary-light: #FF8F65;
  --primary-dark: #E8521B;
  --secondary: #4ECDC4;
  --secondary-dark: #38B2AA;
  --accent: #FFE66D;
  --accent2: #A8EDEA;
  --purple: #9B59B6;
  --green: #27AE60;
  --red: #E74C3C;
  --blue: #3498DB;

  --bg: #FFF9F4;
  --bg2: #FFF0E6;
  --card: #FFFFFF;
  --border: #FFD4B8;

  --text: #2C1810;
  --text2: #7A5C4F;
  --text3: #B08A7A;

  /* Sémantické barvy pro správné/špatné odpovědi */
  --correct-bg: #E8F8EE;
  --correct-text: #1a5c34;
  --wrong-bg: #FFF0EE;
  --wrong-text: #7d1a1a;
  --info-bg: #EBF5FF;
  --info-text: #1a4a7d;

  --radius: 18px;
  --radius-sm: 10px;
  --shadow: 0 4px 20px rgba(255,107,53,0.12);
  --shadow-lg: 0 8px 40px rgba(255,107,53,0.18);

  --font-head: 'Baloo 2', cursive;
  --font-body: 'Nunito', sans-serif;

  --sidebar-w: 260px;

  /* ── Responsive font scale (clamp: min 13", preferred vw, max 16"+) ──
     Používají se v kartičkách, kvízech, psaní, poslechu, čtení
     min = 13" (~1280px), max = 16"+ (~1920px)                        */
  --fs-word-en:   clamp(2.2rem, 3.2vw, 3.9rem);   /* AJ slovo na kartičce */
  --fs-word-cz:   clamp(1.9rem, 2.8vw, 3.3rem);   /* CZ slovo na kartičce */
  --fs-pron:      clamp(1rem,   1.3vw, 1.58rem);   /* fonetický přepis     */
  --fs-label:     clamp(0.85rem,0.95vw,1.14rem);   /* štítky Anglicky/Česky*/
  --fs-hint:      clamp(0.88rem,1vw,   1.2rem);    /* Klikni pro překlad   */
  --fs-btn-speak: clamp(0.95rem,1.2vw, 1.43rem);   /* Přehrát výslovnost   */
  --fs-option:    clamp(0.95rem,1.15vw,1.35rem);   /* možnosti odpovědí    */
  --fs-btn-nav:   clamp(1rem,   1.1vw, 1.2rem);    /* Předchozí / Další    */
  --pad-card:     clamp(28px,   3.5vw, 52px);      /* padding karty        */
  --pad-card-h:   clamp(22px,   3vw,   42px);      /* padding karty horiz  */
}

/* OLDER STUDENTS (grades 7-9) */
body.grade-high {
  --primary: #2D3561;
  --primary-light: #4A5280;
  --primary-dark: #1A2040;
  --secondary: #00B4D8;
  --accent: #CAF0F8;
  --bg: #F4F6FB;
  --bg2: #E8ECF5;
  --border: #C8D0E8;
  --text: #1A2040;
  --text2: #4A5280;
  --shadow: 0 4px 20px rgba(45,53,97,0.10);
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  overflow-x: hidden;
}

/* ===== SCREENS ===== */
.screen { min-height: 100vh; }
.screen.hidden { display: none; }
.screen.active { display: block; }

/* ===== LOGIN ===== */
.login-bg {
  position: fixed;
  inset: 0;
  background: linear-gradient(135deg, #FF6B35 0%, #FF8F65 30%, #FFD4B8 60%, #FFF9F4 100%);
  z-index: 0;
  overflow: hidden;
}

.floating-shape {
  position: absolute;
  font-size: 3rem;
  animation: floatAnim 6s ease-in-out infinite;
  opacity: 0.6;
  user-select: none;
}
.s1 { top: 10%; left: 8%; animation-delay: 0s; }
.s2 { top: 20%; right: 10%; animation-delay: 1s; font-size: 2.5rem; }
.s3 { bottom: 15%; left: 12%; animation-delay: 2s; }
.s4 { top: 50%; right: 8%; animation-delay: 0.5s; font-size: 2rem; }
.s5 { bottom: 25%; right: 20%; animation-delay: 1.5s; }
.s6 { top: 35%; left: 20%; animation-delay: 3s; font-size: 2rem; }

@keyframes floatAnim {
  0%, 100% { transform: translateY(0) rotate(0deg); }
  50% { transform: translateY(-20px) rotate(10deg); }
}

.login-card {
  position: relative;
  z-index: 1;
  background: white;
  border-radius: 28px;
  padding: 40px;
  max-width: 440px;
  width: 90%;
  margin: 40px auto;
  box-shadow: 0 20px 60px rgba(255,107,53,0.25);
  animation: slideUp 0.6s cubic-bezier(0.34, 1.56, 0.64, 1);
}

@keyframes slideUp {
  from { opacity: 0; transform: translateY(60px) scale(0.95); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

.login-logo { text-align: center; margin-bottom: 28px; }
.logo-icon { font-size: 4rem; line-height: 1; }
.logo-title {
  font-family: var(--font-head);
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--primary);
  line-height: 1;
}
.logo-sub { color: var(--text2); font-size: 0.95rem; margin-top: 4px; }

.login-tabs {
  display: flex;
  background: var(--bg2);
  border-radius: 12px;
  padding: 4px;
  margin-bottom: 24px;
  gap: 4px;
}
.tab-btn {
  flex: 1;
  padding: 10px;
  border: none;
  background: transparent;
  border-radius: 10px;
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 0.95rem;
  cursor: pointer;
  color: var(--text2);
  transition: all 0.2s;
}
.tab-btn.active {
  background: white;
  color: var(--primary);
  box-shadow: 0 2px 8px rgba(255,107,53,0.15);
}

.form-group { margin-bottom: 16px; }
.form-group label {
  display: block;
  font-weight: 700;
  font-size: 0.88rem;
  margin-bottom: 6px;
  color: var(--text2);
}
.form-input {
  width: 100%;
  padding: 12px 16px;
  border: 2px solid var(--border);
  border-radius: 12px;
  font-family: var(--font-body);
  font-size: 1rem;
  color: var(--text);
  background: var(--bg);
  transition: border-color 0.2s, box-shadow 0.2s;
  outline: none;
}
.form-input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 4px rgba(255,107,53,0.12);
}

.form-error {
  background: #FFF0EE;
  color: var(--red);
  border: 1px solid #FFCCC8;
  border-radius: 10px;
  padding: 10px 14px;
  font-size: 0.88rem;
  font-weight: 600;
  margin-bottom: 12px;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: white;
  border: none;
  border-radius: 14px;
  padding: 14px 28px;
  font-family: var(--font-head);
  font-size: 1.05rem;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.2s;
  box-shadow: 0 4px 15px rgba(255,107,53,0.35);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(255,107,53,0.45);
}
.btn-primary:active { transform: translateY(0); }
.btn-full { width: 100%; }

.login-demo {
  margin-top: 20px;
  text-align: center;
}
.login-demo p {
  font-size: 0.82rem;
  color: var(--text3);
  margin-bottom: 10px;
}
.btn-demo {
  background: var(--bg2);
  border: 2px solid var(--border);
  border-radius: 10px;
  padding: 7px 14px;
  font-family: var(--font-body);
  font-size: 0.82rem;
  font-weight: 700;
  cursor: pointer;
  margin: 4px;
  color: var(--text2);
  transition: all 0.2s;
}
.btn-demo:hover { background: var(--border); color: var(--primary); }

/* ===== APP LAYOUT ===== */
#screen-app { display: flex; min-height: 100vh; }
#screen-app.hidden { display: none; }

/* SIDEBAR */
.sidebar {
  width: var(--sidebar-w);
  background: linear-gradient(180deg, var(--primary) 0%, var(--primary-dark) 100%);
  color: white;
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0; left: 0; bottom: 0;
  z-index: 100;
  transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
  overflow-y: auto;
}
.sidebar.closed { transform: translateX(-100%); }

.sidebar-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 20px 10px;
}
.sidebar-logo {
  font-family: var(--font-head);
  font-size: 1.3rem;
  font-weight: 800;
  display: flex;
  align-items: center;
  gap: 8px;
}
.sidebar-close {
  background: rgba(255,255,255,0.15);
  border: none;
  color: white;
  width: 32px; height: 32px;
  border-radius: 8px;
  cursor: pointer;
  font-size: 1rem;
  display: none;
}

.user-card {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 20px;
  background: rgba(255,255,255,0.12);
  margin: 10px 14px;
  border-radius: 14px;
}
.user-avatar { font-size: 2rem; width:42px;height:42px;flex-shrink:0;display:flex;align-items:center;justify-content:center; }
.user-name { font-weight: 800; font-size: 0.95rem; }
.user-level { font-size: 0.78rem; opacity: 0.8; }

.xp-bar-container {
  padding: 0 20px 10px;
}
.xp-bar {
  height: 8px;
  background: rgba(255,255,255,0.2);
  border-radius: 4px;
  overflow: hidden;
  margin-bottom: 4px;
}
.xp-fill {
  height: 100%;
  background: var(--accent);
  border-radius: 4px;
  transition: width 0.6s ease;
}
.xp-label { font-size: 0.75rem; opacity: 0.7; }

.nav-menu {
  list-style: none;
  padding: 8px 0;
  flex: 1;
}
.nav-menu li { margin: 2px 12px; }
.nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 11px 14px;
  border-radius: 12px;
  color: rgba(255,255,255,0.8);
  text-decoration: none;
  font-weight: 700;
  font-size: 0.95rem;
  transition: all 0.2s;
  cursor: pointer;
}
.nav-item:hover { background: rgba(255,255,255,0.15); color: white; }
.nav-item.active { background: rgba(255,255,255,0.22); color: white; box-shadow: 0 2px 10px rgba(0,0,0,0.15); }
.nav-divider {
  padding: 14px 14px 4px;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  opacity: 0.5;
  font-weight: 800;
}
.sidebar-footer { padding: 14px; }
.btn-logout {
  width: 100%;
  background: rgba(255,255,255,0.12);
  border: 2px solid rgba(255,255,255,0.2);
  color: white;
  border-radius: 12px;
  padding: 10px;
  font-family: var(--font-body);
  font-weight: 700;
  cursor: pointer;
  transition: all 0.2s;
}
.btn-logout:hover { background: rgba(255,255,255,0.22); }

/* MAIN CONTENT */
.main-content {
  margin-left: var(--sidebar-w);
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  transition: margin-left 0.3s;
}
.main-content.expanded { margin-left: 0; }

/* TOPBAR */
.topbar {
  background: white;
  border-bottom: 2px solid var(--border);
  padding: 14px 24px;
  display: flex;
  align-items: center;
  gap: 16px;
  position: sticky;
  top: 0;
  z-index: 50;
}
.menu-btn {
  background: var(--bg2);
  border: 2px solid var(--border);
  border-radius: 10px;
  padding: 8px 12px;
  font-size: 1.1rem;
  cursor: pointer;
  transition: all 0.2s;
}
.menu-btn:hover { background: var(--border); }
.topbar-title {
  font-family: var(--font-head);
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--text);
  flex: 1;
}
.topbar-right { display: flex; gap: 10px; }
.streak-badge, .coins-badge {
  background: var(--bg2);
  border: 2px solid var(--border);
  border-radius: 20px;
  padding: 6px 14px;
  font-weight: 800;
  font-size: 0.9rem;
  display: flex;
  align-items: center;
  gap: 5px;
}
.streak-badge { color: #FF6B35; }
.coins-badge { color: #F1C40F; }

/* PAGES */
.page { display: none; padding: 28px; animation: fadeIn 0.3s ease; }
.page.active { display: block; }

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ===== CARDS ===== */
.card {
  background: var(--card);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow);
  border: 2px solid var(--border);
}
.card-sm {
  background: var(--card);
  border-radius: var(--radius-sm);
  padding: 18px;
  box-shadow: var(--shadow);
  border: 2px solid var(--border);
}

/* ===== GRID ===== */
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }

/* ===== SECTION HEADER ===== */
.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 18px;
}
.section-title {
  font-family: var(--font-head);
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: 10px;
}
.section-sub { color: var(--text2); font-size: 0.88rem; margin-top: 2px; }

/* ===== BUTTONS ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 10px 20px;
  border-radius: 12px;
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 0.9rem;
  cursor: pointer;
  transition: all 0.2s;
  border: 2px solid transparent;
  text-decoration: none;
}
.btn-orange {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: white;
  box-shadow: 0 3px 12px rgba(255,107,53,0.3);
}
.btn-orange:hover { transform: translateY(-2px); box-shadow: 0 5px 16px rgba(255,107,53,0.4); }
.btn-teal {
  background: linear-gradient(135deg, var(--secondary), var(--secondary-dark));
  color: white;
  box-shadow: 0 3px 12px rgba(78,205,196,0.3);
}
.btn-teal:hover { transform: translateY(-2px); }
.btn-purple {
  background: var(--purple);
  color: white;
  border: none;
}
.btn-purple:hover { transform: translateY(-2px); background: #8E44AD; }
.btn-outline {
  background: transparent;
  color: var(--primary);
  border-color: var(--primary);
}
.btn-outline:hover { background: var(--bg2); }
.btn-sm { padding: 7px 14px; font-size: 0.82rem; border-radius: 9px; }
.btn-lg { padding: 20px 36px; font-size: 1.25rem; border-radius: 16px; }

/* ===== PROGRESS BAR ===== */
.progress-bar {
  height: 12px;
  background: var(--bg2);
  border-radius: 6px;
  overflow: hidden;
  border: 1px solid var(--border);
}
.progress-fill {
  height: 100%;
  border-radius: 6px;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
  transition: width 0.6s ease;
}

/* ===== BADGES ===== */
.badge {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 0.78rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.badge-orange { background: #FFF0E8; color: var(--primary); }
.badge-teal { background: #E0FAF9; color: var(--secondary-dark); }
.badge-green { background: #E8F8EE; color: var(--green); }
.badge-purple { background: #F3E8FA; color: var(--purple); }
.badge-yellow { background: #FFFBE0; color: #C0930A; }

/* ===== LEVEL CHIP ===== */
.level-chip {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: white;
  border-radius: 20px;
  padding: 5px 14px;
  font-weight: 800;
  font-size: 0.85rem;
}

/* ===== TOAST ===== */
#toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.toast {
  background: var(--card);
  border-left: 5px solid var(--primary);
  border-radius: 12px;
  padding: 14px 18px;
  box-shadow: 0 6px 24px rgba(0,0,0,0.15);
  font-weight: 700;
  font-size: 0.92rem;
  max-width: 300px;
  animation: toastIn 0.4s cubic-bezier(0.34,1.56,0.64,1);
  display: flex;
  align-items: center;
  gap: 10px;
}
.toast.success { border-color: var(--green); }
.toast.error { border-color: var(--red); }
.toast.info { border-color: var(--blue); }
@keyframes toastIn {
  from { opacity: 0; transform: translateX(60px); }
  to { opacity: 1; transform: translateX(0); }
}
@keyframes toastOut {
  from { opacity: 1; transform: translateX(0); }
  to { opacity: 0; transform: translateX(60px); }
}

/* ===== MODAL ===== */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.45);
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  animation: fadeIn 0.2s;
}
.modal-overlay.hidden { display: none; }
.modal-box {
  background: var(--card);
  border-radius: 24px;
  padding: 32px;
  max-width: 520px;
  width: 90%;
  max-height: 85vh;
  overflow-y: auto;
  position: relative;
  animation: slideUp 0.3s cubic-bezier(0.34,1.56,0.64,1);
}
.modal-close {
  position: absolute;
  top: 14px; right: 14px;
  background: #E74C3C;
  border: none;
  width: 36px; height: 36px;
  border-radius: 50%;
  cursor: pointer;
  font-size: 1rem;
  font-weight: 900;
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background .15s;
}
.modal-close:hover { background: #C0392B; }

/* ===== QUIZ / EXERCISE ===== */
.quiz-question {
  font-family: var(--font-head);
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 20px;
  line-height: 1.4;
}
.quiz-options {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}
.quiz-option {
  background: var(--bg);
  border: 3px solid var(--border);
  border-radius: 14px;
  padding: 16px 12px;
  font-weight: 700;
  font-size: 1.05rem;
  cursor: pointer;
  transition: all 0.2s;
  text-align: center;
}
.quiz-option:hover { border-color: var(--primary); background: var(--bg2); transform: scale(1.02); }
.quiz-option.correct { border-color: var(--green); background: var(--correct-bg); color: var(--green); }
.quiz-option.wrong { border-color: var(--red); background: var(--wrong-bg); color: var(--red); }
.quiz-option:disabled { cursor: default; }

/* ===== FLASHCARD ===== */
.flashcard {
  perspective: 1000px;
  cursor: pointer;
}
.flashcard-inner {
  position: relative;
  width: 100%;
  height: 200px;
  transform-style: preserve-3d;
  transition: transform 0.5s;
}
.flashcard.flipped .flashcard-inner { transform: rotateY(180deg); }
.flashcard-front, .flashcard-back {
  position: absolute;
  inset: 0;
  backface-visibility: hidden;
  border-radius: var(--radius);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 24px;
  border: 3px solid var(--border);
  box-shadow: var(--shadow);
}
.flashcard-front { background: linear-gradient(135deg, var(--primary), var(--primary-light)); color: white; }
.flashcard-back { background: linear-gradient(135deg, var(--secondary), var(--secondary-dark)); color: white; transform: rotateY(180deg); }
.flashcard-word { font-family: var(--font-head); font-size: 2rem; font-weight: 800; }
.flashcard-hint { font-size: 0.85rem; opacity: 0.8; margin-top: 8px; }

/* ===== INPUT EXERCISE ===== */
.exercise-input {
  width: 100%;
  padding: 14px 18px;
  border: 3px solid var(--border);
  border-radius: 14px;
  font-family: var(--font-body);
  font-size: 1.1rem;
  font-weight: 700;
  outline: none;
  transition: border-color 0.2s;
  margin-bottom: 14px;
}
.exercise-input:focus { border-color: var(--primary); }
.exercise-input.correct { border-color: var(--green); background: var(--correct-bg); }
.exercise-input.wrong { border-color: var(--red); background: var(--wrong-bg); }

/* ===== RESULT SCREEN ===== */
.result-screen {
  text-align: center;
  padding: 40px 20px;
}
.result-emoji { font-size: 5rem; display: block; margin-bottom: 16px; }
.result-score {
  font-family: var(--font-head);
  font-size: 4rem;
  font-weight: 900;
  color: var(--primary);
}
.result-label { color: var(--text2); font-size: 1.1rem; margin-bottom: 24px; }
.xp-gained {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--accent);
  border-radius: 20px;
  padding: 8px 20px;
  font-weight: 800;
  color: #8B6800;
  margin-bottom: 24px;
  font-size: 1.1rem;
}

/* ===== STARS ===== */
.stars { display: flex; justify-content: center; gap: 8px; margin-bottom: 16px; }
.star { font-size: 2.5rem; filter: grayscale(1); transition: filter 0.3s; }
.star.lit { filter: none; animation: starPop 0.4s cubic-bezier(0.34,1.56,0.64,1); }
@keyframes starPop {
  from { transform: scale(0); }
  to { transform: scale(1); }
}

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
  .sidebar {
    transform: translateX(-100%);
  }
  .sidebar.open {
    transform: translateX(0);
  }
  .sidebar-close { display: flex; align-items: center; justify-content: center; }
  .main-content { margin-left: 0; }
  .grid-2 { grid-template-columns: 1fr; }
  .grid-3 { grid-template-columns: 1fr 1fr; }
  .grid-4 { grid-template-columns: 1fr 1fr; }
  .page { padding: 16px; }
  .quiz-options { grid-template-columns: 1fr; }
}
@media (max-width: 480px) {
  .grid-3 { grid-template-columns: 1fr; }
  .grid-4 { grid-template-columns: 1fr 1fr; }
}

/* ===== UTILITY ===== */
.hidden { display: none !important; }
.mt-10 { margin-top: 10px; }
.mt-16 { margin-top: 16px; }
.mt-24 { margin-top: 24px; }
.mb-16 { margin-bottom: 16px; }
.mb-24 { margin-bottom: 24px; }
.text-center { text-align: center; }
.flex { display: flex; }
.flex-center { display: flex; align-items: center; justify-content: center; }
.gap-10 { gap: 10px; }
.gap-16 { gap: 16px; }
.w-full { width: 100%; }

/* TEACHER ONLY */
.teacher-only.hidden, .admin-only.hidden { display: none !important; }

/* ============================================================
   PART 2: ADDITIONAL STYLES
   ============================================================ */

/* MEMORY CARD */
.memory-card {
  transition: all 0.25s cubic-bezier(0.34,1.56,0.64,1);
}
.memory-card:not(.matched):not(.flipped):hover {
  transform: scale(1.06);
  box-shadow: var(--shadow-lg);
}

/* CROSSWORD INPUT */
input[id^="cw-"] {
  caret-color: var(--primary);
}
input[id^="cw-"]:focus {
  border-color: var(--primary) !important;
  box-shadow: 0 0 0 4px rgba(255,107,53,0.15);
  z-index: 2;
  position: relative;
}

/* LEADERBOARD */
.leaderboard-row:hover {
  background: var(--bg2) !important;
}

/* PROFILE MODAL */
.profile-stat-bar {
  height: 8px;
  background: var(--bg2);
  border-radius: 4px;
  overflow: hidden;
}

/* DAILY CHALLENGE */
@keyframes pulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.04); }
}
.daily-challenge-btn {
  animation: pulse 2s ease-in-out infinite;
}

/* BACKEND CONNECTED INDICATOR */
.backend-status {
  position: fixed;
  bottom: 8px;
  left: 14px;
  font-size: 0.72rem;
  color: var(--text3);
  display: flex;
  align-items: center;
  gap: 5px;
  z-index: 10;
}
.backend-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--green);
  animation: pulse 2s ease-in-out infinite;
}
.backend-dot.offline {
  background: var(--text3);
  animation: none;
}

/* SCROLLBAR */
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: var(--bg2); border-radius: 4px; }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--primary-light); }

/* GAME GRID RESPONSIVE */
@media (max-width: 600px) {
  .grid-3 { grid-template-columns: 1fr 1fr !important; }
}

/* ============================================================
   PŘIDANÉ STYLY – enhancements z vývojových sessions
   ============================================================ */

/* Notifikační odznak v sidebaru */
.notif-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: #E74C3C;
  color: #fff;
  border-radius: 10px;
  padding: 1px 6px;
  font-size: 0.65rem;
  font-weight: 900;
  margin-left: 6px;
  min-width: 18px;
}
.notif-badge.hidden { display: none; }

/* Úkoly od učitele – task row */
.task-row {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 14px 16px;
  border-bottom: 1px solid var(--border);
}
.task-row:last-child { border-bottom: none; }

/* Prioritní badges */
.priority-urgent { background: #FFF0EE; color: #C0392B; }
.priority-high    { background: #FFFBE0; color: #C0930A; }
.priority-normal  { background: #E8F0FA; color: #2D3561; }

/* Zpětná vazba od učitele */
.feedback-card-praise      { background: #F0FFF4; border-color: #27AE60; }
.feedback-card-improvement { background: #FFF8F0; border-color: #E67E22; }
.feedback-card-info        { background: #F0F8FF; border-color: #3498DB; }
.feedback-card-warning     { background: #FFF5F5; border-color: #E74C3C; }

/* Teacher tabs */
.teacher-tab-bar {
  display: flex;
  gap: 4px;
  background: var(--bg2);
  border-radius: 14px;
  padding: 4px;
  margin-bottom: 20px;
  flex-wrap: wrap;
}
.teacher-tab {
  flex: 1;
  padding: 8px 6px;
  border: none;
  background: transparent;
  border-radius: 10px;
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 0.82rem;
  cursor: pointer;
  color: var(--text2);
  transition: all 0.15s;
  white-space: nowrap;
  min-width: 80px;
  text-align: center;
}
.teacher-tab:hover { background: rgba(255,107,53,0.1); color: var(--primary); }
.teacher-tab.active { background: #fff; color: var(--primary); box-shadow: 0 2px 8px rgba(255,107,53,0.15); }

/* Hodnocení – barevné odznaky */
.grade-1 { color: #1a7a40; font-weight: 900; font-size: 1.2rem; }
.grade-2 { color: #2980B9; font-weight: 900; font-size: 1.2rem; }
.grade-3 { color: #E67E22; font-weight: 900; font-size: 1.2rem; }
.grade-4 { color: #C0392B; font-weight: 900; font-size: 1.2rem; }
.grade-5 { color: #8E1010; font-weight: 900; font-size: 1.2rem; }

/* ── Třísekční rozdělení (Poslech, Psaní) ── */
.section-group { margin-bottom: 8px; }

.section-group-title {
  font-family: var(--font-head);
  font-size: 1rem;
  font-weight: 800;
  color: var(--text);
  padding: 10px 0 8px;
  border-bottom: 2px solid var(--border);
  margin-bottom: 14px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.section-group-title.collapsible {
  cursor: pointer;
  user-select: none;
  color: var(--text2);
}
.section-group-title.collapsible:hover { color: var(--primary); }

.toggle-arrow {
  margin-left: auto;
  font-size: 0.85rem;
  transition: transform 0.2s;
  color: var(--text3);
}
.section-group-title.open .toggle-arrow { transform: rotate(180deg); }

.section-group-body { overflow: hidden; transition: max-height 0.3s ease; }
.section-group-body.collapsed { max-height: 0; overflow: hidden; }
.section-group-body.expanded  { max-height: 2000px; }

/* ── Pole hesla s tlačítkem zobrazit/skrýt ── */
.password-wrapper {
  position: relative;
  display: flex;
  align-items: center;
}
.password-wrapper .form-input {
  flex: 1;
  padding-right: 44px; /* místo pro tlačítko */
}
.btn-show-pass {
  position: absolute;
  right: 10px;
  background: none;
  border: none;
  cursor: pointer;
  font-size: 1.1rem;
  color: var(--text3);
  padding: 4px 6px;
  border-radius: 6px;
  line-height: 1;
  transition: color 0.15s, background 0.15s;
  user-select: none;
}
.btn-show-pass:hover {
  color: var(--primary);
  background: rgba(255,107,53,0.08);
}
.btn-show-pass.active {
  color: var(--primary);
}

/* ===== DEV LOGO – Gemini Fénix ===== */
@keyframes fadeInLogo {
  from { opacity: 0; transform: scale(0.85) rotate(-6deg); }
  to   { opacity: 0.9; transform: scale(1) rotate(0deg); }
}
@keyframes logo_pulse {
  0%,100% { filter: drop-shadow(0 0 8px #1a7a4a55) drop-shadow(0 0 25px #0d5c3322); }
  50%     { filter: drop-shadow(0 0 20px #2ecc7188) drop-shadow(0 0 55px #1a7a4a44); }
}
@keyframes logo_breathe {
  0%,100% { transform: scale(1); }
  50%     { transform: scale(1.02); }
}
@keyframes logo_orbit_cw  { from{ transform:rotate(0deg)   } to{ transform:rotate(360deg)  } }
@keyframes logo_orbit_ccw { from{ transform:rotate(0deg)   } to{ transform:rotate(-360deg) } }
@keyframes logo_twinkle1  { 0%,100%{opacity:0.25} 50%{opacity:1} }
@keyframes logo_twinkle2  { 0%,100%{opacity:0.5}  65%{opacity:1} }
@keyframes logo_spark {
  0%   { opacity:0; transform:translate(0,0) scale(0.5); }
  20%  { opacity:0.85; }
  100% { opacity:0; transform:translate(var(--tx,0px), var(--ty,-20px)) scale(0.2); }
}

/* Aplikace animací na elementy */
#dev-logo-login-svg,
#dev-logo-app-svg {
  animation: logo_pulse 4s ease-in-out infinite, logo_breathe 6s ease-in-out infinite;
  transform-origin: center;
}
#dl_orbit1, #da_orbit1 { animation: logo_orbit_cw  20s linear infinite; transform-origin: 200px 200px; }
#dl_orbit2, #da_orbit2 { animation: logo_orbit_ccw 32s linear infinite; transform-origin: 200px 200px; }
#dl_tw1, #dl_tw3       { animation: logo_twinkle1 3.1s ease-in-out infinite; }
#dl_tw2, #dl_tw4       { animation: logo_twinkle2 4.7s ease-in-out infinite; }
#da_tw1                { animation: logo_twinkle1 3.1s ease-in-out infinite; }
#da_tw2                { animation: logo_twinkle2 4.7s ease-in-out infinite; }
#dl_sp1 { --tx:-16px; --ty:-24px; animation: logo_spark 2.8s ease-out 0.0s infinite; }
#dl_sp2 { --tx: 18px; --ty:-20px; animation: logo_spark 3.2s ease-out 1.0s infinite; }
#dl_sp3 { --tx: 14px; --ty: 22px; animation: logo_spark 2.5s ease-out 1.8s infinite; }
#dl_sp4 { --tx:-12px; --ty: 18px; animation: logo_spark 3.5s ease-out 0.6s infinite; }

#dev-logo-login:hover { opacity: 1 !important; transition: all .25s; }
#dev-logo-app:hover   { opacity: 0.98 !important; transition: opacity .25s; pointer-events: auto; }

/* Animace smaragdového fénixe */
/* ══ SMARAGD – animace ══ */
  @keyframes em_pulse {
    0%,100% { filter: drop-shadow(0 0 10px #1a7a4a55) drop-shadow(0 0 30px #0d5c3322); }
    50%      { filter: drop-shadow(0 0 22px #2ecc7188) drop-shadow(0 0 60px #1a7a4a44); }
  }
  @keyframes em_breathe {
    0%,100% { transform: scale(1); }
    50%      { transform: scale(1.016); }
  }
  @keyframes em_orbit {
    from { transform: rotate(0deg); }
    to   { transform: rotate(360deg); }
  }
  @keyframes em_orbit_rev {
    from { transform: rotate(0deg); }
    to   { transform: rotate(-360deg); }
  }
  @keyframes em_spark {
    0%,100% { opacity: 0.5; r: 2.8; }
    50%      { opacity: 1; r: 3.5; }
  }
  #logo_em {
    animation: em_pulse 4s ease-in-out infinite, em_breathe 6s ease-in-out infinite;
    transform-origin: center;
  }
  #em_orbit1 { animation: em_orbit 20s linear infinite; transform-origin: 80px 80px; }
  #em_orbit2 { animation: em_orbit_rev 32s linear infinite; transform-origin: 80px 80px; }

  /* Plameny smaragd */
  @keyframes em_flame {
    0%,100% { transform: scaleX(1) skewX(0deg); }
    33%      { transform: scaleX(1.05) skewX(2deg); }
    66%      { transform: scaleX(0.96) skewX(-1.5deg); }
  }
  #em_flames { animation: em_flame 3.2s ease-in-out infinite; transform-origin: 80px 88px; }

  /* Jemné hvězdičky ve smaragdovém */
  @keyframes twinkle1 { 0%,100%{opacity:0.2}45%{opacity:0.9}50%{opacity:0.6} }
  @keyframes twinkle2 { 0%,100%{opacity:0.4}60%{opacity:1}65%{opacity:0.5} }
  @keyframes twinkle3 { 0%,100%{opacity:0.1}20%{opacity:0.8} }
  .tw1 { animation: twinkle1 3.1s ease-in-out infinite; }
  .tw2 { animation: twinkle2 4.7s ease-in-out infinite; }
  .tw3 { animation: twinkle3 2.4s ease-in-out infinite; }
/* ID animací navázaných na elementy */
#dev-logo-login-svg { animation: em_pulse 4s ease-in-out infinite, em_breathe 6s ease-in-out infinite; transform-origin: center; }
#dev-logo-app-svg   { animation: em_pulse 4s ease-in-out infinite, em_breathe 6s ease-in-out infinite; transform-origin: center; }
#dl_orbit1, #da_orbit1 { animation: em_orbit 20s linear infinite; transform-origin: 80px 80px; }
#dl_orbit2, #da_orbit2 { animation: em_orbit_rev 32s linear infinite; transform-origin: 80px 80px; }
#dl_flames, #da_flames  { animation: em_flame 3.2s ease-in-out infinite; transform-origin: 80px 88px; }
#dev-logo-login:hover { opacity: 1 !important; transition: all .25s; }
#dev-logo-app:hover   { opacity: 0.95 !important; transition: opacity .25s; }

/* ============================================================
   TÉMATA A TMAVÝ REŽIM – profil uživatele
   ============================================================ */

/* Témata – přepisují --primary barvy */
body.theme-orange { --primary:#FF6B35; --primary-light:#FF8F65; --primary-dark:#E8521B; --bg:#FFF9F4; --bg2:#FFF0E6; --border:#FFD4B8; }
body.theme-blue   { --primary:#3498DB; --primary-light:#5DADE2; --primary-dark:#2177B0; --bg:#F4F9FF; --bg2:#E8F4FF; --border:#B8D9F8; }
body.theme-green  { --primary:#27AE60; --primary-light:#2ECC71; --primary-dark:#1E8449; --bg:#F4FFF8; --bg2:#E6F9EE; --border:#B8F0CE; }
body.theme-purple { --primary:#9B59B6; --primary-light:#A96CC7; --primary-dark:#7D3C98; --bg:#FAF4FF; --bg2:#F0E6FF; --border:#D7B8F8; }
body.theme-red    { --primary:#E74C3C; --primary-light:#F06E62; --primary-dark:#C0392B; --bg:#FFF4F4; --bg2:#FFE6E6; --border:#F8B8B8; }

/* Tmavý režim */
body.dark-mode {
  --bg: #1A1A2E; --bg2: #16213E; --card: #0F3460; --border: #2A4080;
  --text: #E8EAF0; --text2: #A0AAC0; --text3: #6A7A98;
  --shadow: 0 4px 20px rgba(0,0,0,0.4);
}
body.dark-mode .card          { background: var(--card); color: var(--text); }
body.dark-mode .sidebar       { background: #0F1B35; border-color: #1A2E55; }
body.dark-mode .topbar        { background: #0F1B35; border-color: #1A2E55; }
body.dark-mode .modal-box     { background: #16213E; color: var(--text); }
body.dark-mode .form-input    { background: #0F3460; color: var(--text); border-color: var(--border); }
body.dark-mode .nav-item      { color: var(--text2); }
body.dark-mode .nav-item:hover, body.dark-mode .nav-item.active { background: rgba(255,255,255,0.08); color: var(--text); }

/* Toast notifikace – dark mode */
body.dark-mode .toast {
  background: #16213E;
  color: #E8EAF0;
  box-shadow: 0 6px 24px rgba(0,0,0,0.5);
}

/* Modal overlay – dark mode */
body.dark-mode .modal-overlay { background: rgba(0,0,0,0.75); }

/* Form errors – dark mode */
body.dark-mode .form-error { background: #3D1515; color: #FF9090; border-color: #E74C3C; }

/* Tlačítka – dark mode */
body.dark-mode .btn-outline  { border-color: var(--border); color: var(--text2); background: transparent; }
body.dark-mode .btn-outline:hover { background: rgba(255,255,255,0.08); }
body.dark-mode .btn-demo     { background: #16213E; color: var(--text2); border-color: var(--border); }

/* Sekce hlavičky – dark mode */
body.dark-mode .section-title { color: var(--text); }
body.dark-mode .section-sub   { color: var(--text2); }

/* Progress bar – dark mode */
body.dark-mode .progress-bar  { background: #2A4080; }

/* XP bar – dark mode */
body.dark-mode .xp-bar        { background: rgba(255,255,255,0.1); }
body.dark-mode .xp-label      { color: var(--text3); }

/* User card v sidebaru – dark mode */
body.dark-mode .user-card     { background: rgba(255,255,255,0.04); border-color: #1A2E55; }
body.dark-mode .user-name     { color: var(--text); }
body.dark-mode .user-level    { color: var(--text3); }

/* Badge – dark mode */
body.dark-mode .badge-green   { background: #0D3320; color: #4ADE80; }
body.dark-mode .badge-purple  { background: #2D1B4E; color: #C084FC; }
body.dark-mode .badge-orange  { background: #3D1F0D; color: #FB923C; }
body.dark-mode .badge-teal    { background: #0D2E2E; color: #2DD4BF; }
body.dark-mode .badge-yellow  { background: #2E2200; color: #FCD34D; }

/* Tabulky – dark mode */
body.dark-mode table          { color: var(--text); }
body.dark-mode th             { background: #16213E !important; color: var(--text2) !important; }
body.dark-mode tr:hover td    { background: rgba(255,255,255,0.04) !important; }

/* Dark mode – Kvíz tlačítka */
body.dark-mode .quiz-option {
  background: #0F3460;
  border-color: #2A4080;
  color: var(--text);
}
body.dark-mode .quiz-option:hover { background: #16213E; border-color: var(--primary); }
body.dark-mode .quiz-option.correct { background: #0D3320; border-color: #27AE60; color: #4ADE80; }
body.dark-mode .quiz-option.wrong   { background: #3D1515; border-color: #E74C3C; color: #FF9090; }

/* Dark mode – Exercise input */
body.dark-mode .exercise-input {
  background: #0F3460;
  border-color: #2A4080;
  color: var(--text);
}
body.dark-mode .exercise-input.correct { background: #0D3320; border-color: #27AE60; }
body.dark-mode .exercise-input.wrong   { background: #3D1515; border-color: #E74C3C; }

/* Dark mode – inline styly s hardcoded white bg */
body.dark-mode [style*="background:#fff"],
body.dark-mode [style*="background: #fff"],
body.dark-mode [style*="background:white"],
body.dark-mode [style*="background: white"] {
  background: var(--card) !important;
  color: var(--text) !important;
}
body.dark-mode [style*="color:#1a1a2e"],
body.dark-mode [style*="color: #1a1a2e"],
body.dark-mode [style*="color:#2c3e50"],
body.dark-mode [style*="color:#333"],
body.dark-mode [style*="color: #333"] {
  color: var(--text) !important;
}
body.dark-mode [style*="border-color:#e8e8e8"],
body.dark-mode [style*="border-color: #e8e8e8"] {
  border-color: var(--border) !important;
}

/* ============================================================
   DARK MODE – rozšířená pravidla pro inline styly v JS
   Přepisují hardcoded bílé/světlé barvy v dynamicky
   generovaném HTML
   ============================================================ */

/* Karty a kontejnery s bílým pozadím */
body.dark-mode [style*="background:#fff"],
body.dark-mode [style*="background: #fff"],
body.dark-mode [style*="background:white"],
body.dark-mode [style*="background: white"],
body.dark-mode [style*="background:#FFF;"],
body.dark-mode [style*="background:#FFFFFF"] {
  background: var(--card) !important;
}

/* Světle šedá pozadí – tlačítka Zpět, sekundární akce */
body.dark-mode [style*="background:#f0f2f5"],
body.dark-mode [style*="background: #f0f2f5"] {
  background: #1A2E55 !important;
  color: var(--text2) !important;
}
body.dark-mode [style*="background:#f5f6fa"],
body.dark-mode [style*="background: #f5f6fa"],
body.dark-mode [style*="background:#f8f9fa"],
body.dark-mode [style*="background: #f8f9fa"] {
  background: #16213E !important;
}

/* Texty s tmavými hardcoded barvami */
body.dark-mode [style*="color:#1a1a2e"],
body.dark-mode [style*="color: #1a1a2e"],
body.dark-mode [style*="color:#2c3e50"],
body.dark-mode [style*="color: #2c3e50"],
body.dark-mode [style*="color:#1A1A2E"] {
  color: var(--text) !important;
}
body.dark-mode [style*="color:#555"],
body.dark-mode [style*="color: #555"],
body.dark-mode [style*="color:#666"],
body.dark-mode [style*="color: #666"] {
  color: var(--text2) !important;
}
body.dark-mode [style*="color:#333"],
body.dark-mode [style*="color: #333"] {
  color: var(--text) !important;
}
body.dark-mode [style*="color:#888"],
body.dark-mode [style*="color: #888"],
body.dark-mode [style*="color:#999"],
body.dark-mode [style*="color:#aaa"] {
  color: var(--text3) !important;
}

/* Borders světlé */
body.dark-mode [style*="border-color:#e8e8e8"],
body.dark-mode [style*="border:2px solid #e8e8e8"],
body.dark-mode [style*="border: 2px solid #e8e8e8"],
body.dark-mode [style*="border:1px solid #e8e8e8"] {
  border-color: var(--border) !important;
}

/* Inputs v dark mode */
body.dark-mode input[style],
body.dark-mode textarea[style] {
  background: #0F3460 !important;
  color: var(--text) !important;
  border-color: var(--border) !important;
}

/* Přepsání bílého textu na kartách které mají tmavé pozadí */
body.dark-mode .flashcard-front,
body.dark-mode .flashcard-back {
  color: white !important;
}

/* ── Dark mode hover & mouseout opravy pro inline styly ── */
/* Pokryje případy kde JS nastavuje background přes inline styl */
body.dark-mode .quiz-option { background: var(--card); }
body.dark-mode .quiz-option:hover { background: #16213E !important; }
body.dark-mode .quiz-option.correct { background: #0D3320 !important; }
body.dark-mode .quiz-option.wrong   { background: #3D1515 !important; }

/* ── Sémantické barvy – dark mode override ── */
body.dark-mode {
  --correct-bg: #0D3320;
  --correct-text: #4ade80;
  --wrong-bg: #3D1515;
  --wrong-text: #f87171;
  --info-bg: #0d1f3c;
  --info-text: #93c5fd;
}

/* ── Inline text barvy – dark mode override ── */
body.dark-mode [style*="color:#1a1a2e"],
body.dark-mode [style*="color: #1a1a2e"],
body.dark-mode [style*="color:#2c3e50"],
body.dark-mode [style*="color: #2c3e50"] {
  color: var(--text) !important;
}

/* ── Quiz odpovědi – text čitelný v dark mode ── */
body.dark-mode .quiz-option,
body.dark-mode [style*="text-align:left"][style*="cursor:pointer"] {
  color: var(--text) !important;
  background: var(--card) !important;
}

/* ── Keyword spans v textech čtení ── */
body.dark-mode span[style*="background:#"],
body.dark-mode span[style*="background: #"] {
  color: var(--text) !important;
}

/* ── Překlad box v čtení ── */
body.dark-mode [style*="background:#E8F8EE"],
body.dark-mode [style*="background: #E8F8EE"] {
  background: var(--correct-bg) !important;
  color: var(--text) !important;
}

/* ── Párování slov – karty ── */
body.dark-mode .memory-card {
  color: var(--text) !important;
}

/* ── Writing sekce – dark mode boxy ── */
body.dark-mode [style*="border-color:#FFD770"],
body.dark-mode [style*="border-color: #FFD770"] {
  background: rgba(255, 215, 112, 0.08) !important;
  border-color: rgba(255, 215, 112, 0.4) !important;
}
body.dark-mode [style*="border-color:#96E6A1"],
body.dark-mode [style*="border-color: #96E6A1"] {
  background: rgba(150, 230, 161, 0.08) !important;
  border-color: rgba(150, 230, 161, 0.4) !important;
}

/* Memory topic picker buttons */
.memory-topic-btn {
  cursor: pointer;
  text-align: left;
  border: 2px solid var(--border);
  background: var(--card);
  padding: 12px 14px;
  border-radius: 14px;
  transition: background .15s, border-color .15s;
  font-family: inherit;
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
}
.memory-topic-btn:hover {
  border-color: var(--primary);
  background: var(--bg2);
}
body.dark-mode .memory-topic-btn {
  background: var(--card);
}
body.dark-mode .memory-topic-btn:hover {
  background: var(--bg2);
}

/* ── PRINT / PDF EXPORT ─────────────────────────────────── */
@media print {
  /* Skrýt vše kromě výsledků */
  #sidebar, #topbar, .btn, button,
  #modal-overlay, .toast-container,
  #page-dashboard, #page-vocabulary,
  #page-grammar, #page-reading,
  #page-listening, #page-games,
  #page-profile, #page-school-lessons {
    display: none !important;
  }

  /* Zobrazit pouze oblast tisku */
  #eq-print-area {
    display: block !important;
    position: static;
    width: 100%;
    background: white;
    color: #1a1a1a;
    font-family: Arial, sans-serif;
    font-size: 12pt;
    padding: 20px;
  }

  #eq-print-area h1 { font-size: 16pt; margin-bottom: 4px; }
  #eq-print-area h2 { font-size: 13pt; margin: 12px 0 6px; border-bottom: 1px solid #ccc; padding-bottom: 4px; }
  #eq-print-area .print-score { font-size: 28pt; font-weight: 900; color: #333; }
  #eq-print-area .print-section { margin-bottom: 16px; }
  #eq-print-area .print-row { padding: 4px 0; border-bottom: 1px solid #eee; display: flex; gap: 8px; }
  #eq-print-area .print-ok { color: #27AE60; font-weight: 700; }
  #eq-print-area .print-err { color: #E74C3C; font-weight: 700; }
  #eq-print-area .print-free { color: #888; }
  #eq-print-area .print-meta { font-size: 10pt; color: #666; margin-bottom: 16px; }
  #eq-print-area .print-section-header {
    background: #f5f5f5; padding: 4px 8px;
    font-weight: 800; margin-bottom: 4px;
    display: flex; justify-content: space-between;
  }

  /* Zalamování stránek */
  .print-section { page-break-inside: avoid; }
  h2 { page-break-after: avoid; }
}

/* Oblast tisku — normálně skrytá */
#eq-print-area { display: none; }

/* ============================================================
   FÁZE 2 – Moderní interakce a přístupnost (session 25)
   ============================================================ */

/* ── Viditelný fokus pro ovládání klávesnicí ── */
:focus-visible {
  outline: 3px solid var(--secondary);
  outline-offset: 2px;
  border-radius: 8px;
}
.nav-item:focus-visible { outline-offset: -2px; }
.form-input:focus-visible { outline: none; } /* input má vlastní focus styl (border + glow) */

/* ── Plovoucí "+X XP" odměna (EQFX.xpFly) ── */
.xp-fly {
  position: fixed;
  transform: translateX(-50%);
  background: linear-gradient(135deg, var(--accent), #FFD34D);
  color: #7A5200;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 1rem;
  padding: 6px 14px;
  border-radius: 999px;
  box-shadow: 0 4px 14px rgba(0,0,0,0.18);
  pointer-events: none;
  z-index: 10000;
  animation: xpFlyUp 1.35s cubic-bezier(0.2, 0.8, 0.3, 1) forwards;
}
@keyframes xpFlyUp {
  0%   { opacity: 0; transform: translate(-50%, 10px) scale(0.7); }
  15%  { opacity: 1; transform: translate(-50%, 0)    scale(1.15); }
  30%  {            transform: translate(-50%, -6px)  scale(1); }
  100% { opacity: 0; transform: translate(-50%, -60px) scale(0.9); }
}
.coins-badge.badge-pop { animation: badgePop 0.5s ease; }
@keyframes badgePop {
  0%   { transform: scale(1); }
  35%  { transform: scale(1.25); }
  100% { transform: scale(1); }
}

/* ── Přechody mezi stránkami ──
   Moderní prohlížeče: View Transitions API (řídí app.js)
   Starší prohlížeče: fallback CSS animace při přepnutí .active */
::view-transition-old(root),
::view-transition-new(root) { animation-duration: 0.22s; }

@supports not (view-transition-name: none) {
  .page.active { animation: pageEnter 0.28s ease; }
}
@keyframes pageEnter {
  from { opacity: 0; transform: translateY(10px); }
  to   { opacity: 1; transform: none; }
}

/* ── Vizuální efekty (Fáze 2b, session 25) ── */

/* Plamínek série – jemné pulzování */
.streak-badge { animation: streakPulse 2.4s ease-in-out infinite; }
@keyframes streakPulse {
  0%, 100% { transform: scale(1); }
  50%      { transform: scale(1.07); }
}

/* Hero karta – pomalu se přelévající gradient */
.hero-gradient {
  background-size: 220% 220% !important;
  animation: heroShift 9s ease-in-out infinite;
}
@keyframes heroShift {
  0%, 100% { background-position: 0% 50%; }
  50%      { background-position: 100% 50%; }
}

/* 3D náklon klikatelných karet (řídí EQFX v effects.js) */
.card[onclick] {
  transition: transform 0.18s ease, box-shadow 0.25s ease;
  will-change: transform;
}

/* Scroll-reveal – karty se objevují při rolování (řídí effects.js).
   Skrytý stav přidává JS → bez JS jsou karty normálně vidět. */
.eq-reveal { opacity: 0; transform: translateY(18px); transition: opacity .5s ease, transform .5s ease; }
.eq-reveal.eq-reveal-in { opacity: 1; transform: none; }

/* 3D otočení kartičky slovíčka (flip) */
.flip-card { perspective: 1200px; cursor: pointer; margin-bottom: 24px; }
.flip-inner {
  display: grid;
  transform-style: preserve-3d;
  transition: transform 0.55s cubic-bezier(0.4, 0.2, 0.2, 1);
}
.flip-card.flipped .flip-inner { transform: rotateY(180deg); }
.flip-face {
  grid-area: 1 / 1;
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
  background: var(--card);
  border-radius: 24px;
  border: 2px solid rgba(255,107,53,0.15);
  box-shadow: 0 4px 24px rgba(0,0,0,0.12);
  padding: var(--pad-card) var(--pad-card-h);
  min-height: 286px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
}
.flip-back { transform: rotateY(180deg); }

/* Level-up oslava – celoobrazovkový overlay */
.levelup-overlay {
  position: fixed;
  inset: 0;
  z-index: 10001;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0,0,0,0.45);
  animation: levelupFade 2.6s ease forwards;
  pointer-events: none;
}
.levelup-box {
  text-align: center;
  color: #fff;
  animation: levelupPop 0.6s cubic-bezier(0.34, 1.56, 0.64, 1);
}
.levelup-box .lu-badge {
  font-size: 5rem;
  display: block;
  animation: levelupSpin 0.8s ease;
}
.levelup-box .lu-title {
  font-family: var(--font-head);
  font-size: 2.4rem;
  font-weight: 900;
  text-shadow: 0 4px 20px rgba(0,0,0,0.4);
}
.levelup-box .lu-sub {
  font-size: 1.1rem;
  font-weight: 700;
  opacity: 0.9;
}
@keyframes levelupFade {
  0%   { opacity: 0; }
  10%  { opacity: 1; }
  80%  { opacity: 1; }
  100% { opacity: 0; }
}
@keyframes levelupPop {
  from { transform: scale(0.4); opacity: 0; }
  to   { transform: scale(1); opacity: 1; }
}
@keyframes levelupSpin {
  from { transform: rotate(-20deg) scale(0.3); }
  to   { transform: rotate(0) scale(1); }
}

/* ── Jednotná emoji (Twemoji) – škálují s velikostí písma ── */
img.emoji {
  height: 1em;
  width: 1em;
  margin: 0 0.05em 0 0.1em;
  vertical-align: -0.125em;
  display: inline-block;
}

/* ── Glassmorphism – průsvitný rozmazaný topbar a pozadí modálů ──
   Pouze tam, kde prohlížeč podporuje backdrop-filter. Bez podpory
   (starší prohlížeče) zůstává plné neprůhledné pozadí z pravidel výše. */
@supports ((-webkit-backdrop-filter: blur(1px)) or (backdrop-filter: blur(1px))) {
  .topbar {
    background: rgba(255, 255, 255, 0.72);
    -webkit-backdrop-filter: blur(14px) saturate(1.5);
    backdrop-filter: blur(14px) saturate(1.5);
    border-bottom-color: rgba(255, 255, 255, 0.35);
  }
  body.dark-mode .topbar {
    background: rgba(15, 27, 53, 0.68);
    border-bottom-color: rgba(255, 255, 255, 0.08);
  }
  /* Rozmazání stránky za modálem (samotné okno zůstává čitelné, plné) */
  .modal-overlay {
    -webkit-backdrop-filter: blur(5px);
    backdrop-filter: blur(5px);
  }
}

/* ── Maskot Ned (js/mascot.js) ── */
.eq-mascot { display: block; }
.eq-mascot .m-bob {
  animation: mascotBob 3.4s ease-in-out infinite;
}
@keyframes mascotBob {
  0%, 100% { transform: translateY(0); }
  50%      { transform: translateY(-6px); }
}
.eq-mascot .m-blink {
  transform-box: fill-box;
  transform-origin: center;
  animation: mascotBlink 4.6s infinite;
}
@keyframes mascotBlink {
  0%, 93%, 100% { transform: scaleY(1); }
  95%, 97%      { transform: scaleY(0.06); }
}
.eq-mascot .m-wave {
  transform-box: fill-box;
  transform-origin: 15% 92%;
  animation: mascotWave 1.4s ease-in-out infinite;
}
@keyframes mascotWave {
  0%, 100% { transform: rotate(0deg); }
  50%      { transform: rotate(14deg); }
}

/* Maskot Fénix – obrázek z loga + animace pohybem a září */
.eq-fenix {
  transform-box: fill-box;
  transform-origin: center 70%;
}
.eq-fenix.fx-idle      { animation: fxBob 3.6s ease-in-out infinite, fxGlow 3.6s ease-in-out infinite; }
.eq-fenix.fx-wave      { animation: fxNod 1.6s ease-in-out infinite, fxGlow 3.2s ease-in-out infinite; }
.eq-fenix.fx-cheer     { animation: fxBounce 0.9s ease-in-out, fxGlowBright 0.9s ease-in-out; }
.eq-fenix.fx-encourage { animation: fxSway 1.8s ease-in-out infinite; filter: drop-shadow(0 0 5px rgba(46,204,113,0.28)); }
.eq-fenix.fx-levelup   { animation: fxRise 1.1s cubic-bezier(0.2,0.9,0.3,1), fxGlowBright 1.4s ease-in-out; }

/* Maskot Eman – obrázek chlapce, stejný pohyb, jen jemný stín (bez záře) */
.eq-eman {
  transform-box: fill-box;
  transform-origin: center 70%;
  filter: drop-shadow(0 5px 4px rgba(0,0,0,0.16));
}
.eq-eman.fx-idle      { animation: fxBob 3.6s ease-in-out infinite; }
.eq-eman.fx-wave      { animation: fxNod 1.6s ease-in-out infinite; }
.eq-eman.fx-cheer     { animation: fxBounce 0.9s ease-in-out; }
.eq-eman.fx-encourage { animation: fxSway 1.8s ease-in-out infinite; }
.eq-eman.fx-levelup   { animation: fxRise 1.1s cubic-bezier(0.2,0.9,0.3,1); }

@keyframes fxBob    { 0%,100%{transform:translateY(0)}      50%{transform:translateY(-7px)} }
@keyframes fxGlow   { 0%,100%{filter:drop-shadow(0 0 4px rgba(46,204,113,0.35))} 50%{filter:drop-shadow(0 0 14px rgba(46,204,113,0.6))} }
@keyframes fxGlowBright { 0%{filter:drop-shadow(0 0 6px rgba(46,204,113,0.4))} 50%{filter:drop-shadow(0 0 22px rgba(124,252,158,0.85))} 100%{filter:drop-shadow(0 0 8px rgba(46,204,113,0.45))} }
@keyframes fxNod    { 0%,100%{transform:rotate(0deg) translateY(0)} 50%{transform:rotate(-4deg) translateY(-4px)} }
@keyframes fxBounce { 0%{transform:translateY(0) scale(1)} 30%{transform:translateY(-16px) scale(1.06)} 60%{transform:translateY(0) scale(1)} 80%{transform:translateY(-6px)} 100%{transform:translateY(0)} }
@keyframes fxSway   { 0%,100%{transform:rotate(0deg)} 25%{transform:rotate(2.5deg)} 75%{transform:rotate(-2.5deg)} }
@keyframes fxRise   { 0%{transform:translateY(24px) scale(0.85);opacity:0.4} 100%{transform:translateY(0) scale(1);opacity:1} }
.fx-sparkles { animation: fxSpark 1.2s ease-in-out infinite; transform-origin: center; }
@keyframes fxSpark  { 0%,100%{opacity:0.3} 50%{opacity:1} }

/* Ned v uvítací kartě na Domů */
.hero-mascot {
  position: absolute;
  right: 14px;
  bottom: -4px;
  pointer-events: none;
}
@media (max-width: 640px) { .hero-mascot { display: none; } }

/* Ned – reakce na odpověď (vlevo dole, krátce) */
.mascot-react {
  position: fixed;
  left: 14px;
  bottom: 12px;
  z-index: 8000;
  pointer-events: none;
  animation: mascotIn 0.35s cubic-bezier(0.34, 1.56, 0.64, 1),
             mascotOutAnim 0.3s 1.7s forwards;
}
@keyframes mascotIn {
  from { opacity: 0; transform: translateY(40px); }
  to   { opacity: 1; transform: none; }
}
@keyframes mascotOutAnim {
  to { opacity: 0; transform: translateY(40px); }
}

/* ── Mikrofon „Řekni to slovo" – pulzování při poslechu ── */
.mic-listening {
  animation: micPulse 1.2s ease-in-out infinite;
}
@keyframes micPulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(231, 76, 60, 0.45); }
  50%      { box-shadow: 0 0 0 12px rgba(231, 76, 60, 0); }
}

/* ── Přístupnost: respektuj systémové „omezit pohyb" ──
   Musí být POSLEDNÍ blok v souboru – přebíjí všechny animace. */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}