/* ============================================================
   QuizMaster Pro — Full Design System
   Dark space theme · Glassmorphism · Micro-animations
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700;800;900&display=swap');

/* ── CSS Variables ─────────────────────────────────────────── */
:root {
  --primary:       #5C5AE6;
  --primary-light: #7E7CFF;
  --primary-dark:  #3F3D9E;
  --accent:        #FF527D;
  --accent-light:  #FF7D9C;
  --accent2:       #27C96C;
  --accent3:       #FBBF24;
  --warn:          #F97316;
  --danger:        #EF4444;

  --bg:            #F4F8FD;
  --surface:       #FFFFFF;
  --card:          #FFFFFF;
  --card-hover:    #F8FAFF;
  --border:        rgba(92, 90, 230, 0.15);
  --border-bright: rgba(92, 90, 230, 0.35);

  --text:          #2A275C;
  --text-muted:    #55518D;
  --text-dim:      #8E8AA7;

  --glass-bg:      rgba(255, 255, 255, 0.88);
  --glass-border:  rgba(92, 90, 230, 0.18);

  --radius-sm:  10px;
  --radius-md:  16px;
  --radius-lg:  22px;
  --radius-xl:  30px;
  --radius-full: 9999px;

  --shadow-sm:  0 4px 12px rgba(92, 90, 230, 0.05);
  --shadow-md:  0 10px 30px rgba(92, 90, 230, 0.08);
  --shadow-lg:  0 20px 50px rgba(92, 90, 230, 0.12);
  --shadow-glow: 0 0 24px rgba(92, 90, 230, 0.2);

  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-fast: 0.15s ease;
}

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

html { scroll-behavior: smooth; font-size: 16px; }

body {
  font-family: 'Outfit', sans-serif;
  background-color: var(--bg);
  color: var(--text);
  min-height: 100vh;
  overflow: hidden;
  position: relative;
}

/* ── Animated Background Mesh ──────────────────────────────── */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background:
    radial-gradient(ellipse 60% 50% at 10% 20%, rgba(92, 90, 230, 0.1) 0%, transparent 80%),
    radial-gradient(ellipse 50% 60% at 90% 80%, rgba(255, 82, 125, 0.09) 0%, transparent 80%),
    radial-gradient(ellipse 40% 40% at 50% 50%, rgba(251, 191, 36, 0.08) 0%, transparent 80%),
    radial-gradient(ellipse 40% 40% at 80% 20%, rgba(39, 201, 108, 0.06) 0%, transparent 70%);
  animation: meshShift 16s ease-in-out infinite alternate;
  pointer-events: none;
  z-index: 0;
}

@keyframes meshShift {
  0%   { opacity: 0.9; transform: scale(1); }
  100% { opacity: 1;   transform: scale(1.03); }
}

body::after {
  content: '';
  position: fixed;
  inset: 0;
  background-image:
    radial-gradient(circle at 1px 1px, rgba(92, 90, 230, 0.04) 1.5px, transparent 0);
  background-size: 30px 30px;
  pointer-events: none;
  z-index: 0;
}

/* ── App Wrapper ─────────────────────────────────────────────*/
#app {
  position: relative;
  z-index: 1;
  width: 100%;
  height: 100vh;
}

/* ── Screen System ─────────────────────────────────────────── */
.screen {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  overflow-y: auto;
  overflow-x: hidden;
  padding: 0;
  transition: opacity var(--transition), transform var(--transition);
}

.screen-hidden {
  opacity: 0;
  pointer-events: none;
  transform: translateY(20px) scale(0.98);
  display: none !important;
}

.screen-enter {
  opacity: 0;
  transform: translateY(24px) scale(0.97);
}

.screen-active {
  opacity: 1;
  transform: translateY(0) scale(1);
  display: flex !important;
}

.screen-exit {
  opacity: 0;
  transform: translateY(-16px) scale(1.01);
}

/* ── Scrollbar ──────────────────────────────────────────────  */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border-bright); border-radius: var(--radius-full); }

/* ── Typography ─────────────────────────────────────────────  */
h1 { font-size: clamp(1.8rem, 4vw, 2.8rem); font-weight: 800; line-height: 1.1; }
h2 { font-size: clamp(1.3rem, 3vw, 1.9rem); font-weight: 700; }
h3 { font-size: 1.1rem; font-weight: 600; }
p  { color: var(--text-muted); line-height: 1.6; }

/* Gradient text utility */
.gradient-text {
  background: linear-gradient(135deg, var(--primary-light), var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ── Glass Card ─────────────────────────────────────────────  */
.glass-card {
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
}

/* ── Buttons ─────────────────────────────────────────────────  */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: var(--radius-full);
  border: none;
  cursor: pointer;
  font-family: 'Outfit', sans-serif;
  font-size: 1rem;
  font-weight: 600;
  transition: all var(--transition);
  user-select: none;
  touch-action: manipulation;
  position: relative;
  overflow: hidden;
}

.btn::after {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(255,255,255,0.1);
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.btn:hover::after  { opacity: 1; }
.btn:active { transform: scale(0.96); }

.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #fff;
  box-shadow: 0 4px 20px rgba(108,99,255,0.4);
}
.btn-primary:hover { box-shadow: 0 6px 28px rgba(108,99,255,0.6); transform: translateY(-2px); }

.btn-accent {
  background: linear-gradient(135deg, var(--accent), #e0407a);
  color: #fff;
  box-shadow: 0 4px 20px rgba(255,101,132,0.4);
}
.btn-accent:hover { box-shadow: 0 6px 28px rgba(255,101,132,0.6); transform: translateY(-2px); }

.btn-success {
  background: linear-gradient(135deg, var(--accent2), #27ae60);
  color: #fff;
  box-shadow: 0 4px 20px rgba(67,233,123,0.3);
}
.btn-success:hover { transform: translateY(-2px); }

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

.btn-danger {
  background: linear-gradient(135deg, var(--danger), #c0392b);
  color: #fff;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none !important;
}

/* ── Input ─────────────────────────────────────────────────── */
.input {
  width: 100%;
  padding: 14px 20px;
  background: rgba(255,255,255,0.05);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-md);
  color: var(--text);
  font-family: 'Outfit', sans-serif;
  font-size: 1rem;
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.input::placeholder { color: var(--text-dim); }
.input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(108,99,255,0.2);
}
.input.input-error {
  border-color: var(--danger);
  animation: shake 0.4s ease;
}

@keyframes shake {
  0%,100% { transform: translateX(0); }
  25%      { transform: translateX(-8px); }
  75%      { transform: translateX(8px); }
}

/* ── Badge ─────────────────────────────────────────────────── */
.badge {
  display: inline-block;
  padding: 4px 12px;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

/* ============================================================
   SCREEN 1: ENTRY — Two-panel layout (branding + form)
   ============================================================ */
#screen-login {
  align-items: stretch;
  justify-content: stretch;
  overflow-y: auto;
}

/* Full-height two-column layout */
.entry-page-layout {
  display: flex;
  min-height: 100vh;
  width: 100%;
}

/* ── Left branding panel ──────────────────────────────────── */
.entry-branding {
  flex: 0 0 38%;
  background: linear-gradient(165deg, rgba(92, 90, 230, 0.14) 0%, rgba(255, 82, 125, 0.06) 100%);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: flex-start;
  padding: 60px 48px;
  gap: 20px;
  position: relative;
  overflow: hidden;
}

/* Floating kid-friendly bubbles in background */
.floating-bubble {
  position: absolute;
  pointer-events: none;
  filter: drop-shadow(0 4px 8px rgba(92, 90, 230, 0.12));
  font-size: 2.2rem;
  z-index: 1;
}

.bubble-1 { top: 12%; left: 10%; animation: bubbleFloat 5s ease-in-out infinite; }
.bubble-2 { bottom: 12%; left: 15%; animation: bubbleFloat 6s ease-in-out infinite 0.5s; font-size: 2.5rem; }
.bubble-3 { top: 18%; right: 12%; animation: bubbleFloat 5.5s ease-in-out infinite 1s; }
.bubble-4 { bottom: 18%; right: 10%; animation: bubbleFloat 4.8s ease-in-out infinite 1.5s; }

@keyframes bubbleFloat {
  0%, 100% { transform: translateY(0) rotate(0deg) scale(1); }
  50% { transform: translateY(-15px) rotate(8deg) scale(1.08); }
}

.login-logo-icon {
  font-size: 4.8rem;
  display: block;
  animation: float 3s ease-in-out infinite;
  z-index: 2;
  position: relative;
}

@keyframes float {
  0%,100% { transform: translateY(0); }
  50%      { transform: translateY(-10px); }
}

.entry-branding h1 {
  font-size: clamp(2rem, 3.5vw, 2.8rem);
  margin-top: 8px;
  font-weight: 900;
  z-index: 2;
  position: relative;
}

.entry-tagline {
  color: var(--text-muted);
  font-size: 1.1rem;
  font-weight: 500;
  z-index: 2;
  position: relative;
}

.entry-features {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-top: 16px;
  z-index: 2;
  position: relative;
}

.entry-feat {
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: 0.95rem;
  color: var(--text-muted);
  font-weight: 500;
}

.feat-icon {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  flex-shrink: 0;
  box-shadow: var(--shadow-sm);
}

.feat-blue { background: rgba(92, 90, 230, 0.1); border: 1.5px solid rgba(92, 90, 230, 0.2); }
.feat-gold { background: rgba(251, 191, 36, 0.12); border: 1.5px solid rgba(251, 191, 36, 0.3); }
.feat-pink { background: rgba(255, 82, 125, 0.1); border: 1.5px solid rgba(255, 82, 125, 0.2); }

/* ── Right form panel ─────────────────────────────────────── */
.entry-form-panel {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  overflow-y: auto;
  padding: 40px;
  border-radius: 0;
  border: none;
  background: var(--bg);
}

/* Wizard Progress Bar */
.wizard-progress {
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: relative;
  margin-bottom: 32px;
  width: 100%;
  max-width: 320px;
  align-self: center;
}

.wizard-node {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  z-index: 2;
  position: relative;
  width: 80px;
  text-align: center;
}

.wnode-num {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: #FFFFFF;
  border: 2.5px solid var(--border);
  color: var(--text-dim);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 0.95rem;
  transition: all var(--transition);
  box-shadow: var(--shadow-sm);
}

.wnode-text {
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  transition: all var(--transition);
  white-space: nowrap;
}

.wizard-node.active .wnode-num {
  background: var(--primary);
  border-color: var(--primary);
  color: #FFFFFF;
  box-shadow: 0 4px 12px rgba(92, 90, 230, 0.35);
  transform: scale(1.08);
}

.wizard-node.active .wnode-text {
  color: var(--primary);
  font-weight: 800;
}

.wizard-node.complete .wnode-num {
  background: var(--accent2);
  border-color: var(--accent2);
  color: #FFFFFF;
  box-shadow: 0 4px 12px rgba(39, 201, 108, 0.3);
}

.wizard-node.complete .wnode-text {
  color: var(--accent2);
}

.wizard-progress-line {
  position: absolute;
  top: 18px;
  left: 40px;
  right: 40px;
  height: 5px;
  background: rgba(92, 90, 230, 0.08);
  border-radius: var(--radius-full);
  z-index: 1;
}

.wizard-progress-line-fill {
  width: 0%;
  height: 100%;
  background: var(--primary);
  border-radius: var(--radius-full);
  transition: width 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Sections styled as friendly soft cards */
.entry-section {
  background: #FFFFFF;
  border-radius: var(--radius-lg);
  border: 1.5px solid var(--border);
  box-shadow: var(--shadow-sm);
  padding: 28px 32px;
  margin-bottom: 24px;
  transition: transform var(--transition), box-shadow var(--transition);
  width: 100%;
  max-width: 480px;
  align-self: center;
}

.entry-section:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.entry-step-label {
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--primary);
  margin-bottom: 18px;
}

.entry-divider {
  display: none; /* Hide dividers as we use card modules instead */
}

.form-group { margin-bottom: 20px; }
.form-label {
  display: block;
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--text-muted);
  margin-bottom: 8px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

/* Avatar picker */
.avatar-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 8px;
  margin-top: 8px;
}

.avatar-btn {
  aspect-ratio: 1;
  font-size: 1.5rem;
  background: #FFFFFF;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition);
  display: flex; align-items: center; justify-content: center;
  box-shadow: var(--shadow-sm);
  touch-action: manipulation;
}
.avatar-btn:hover  { border-color: var(--primary); background: rgba(92, 90, 230, 0.06); transform: scale(1.1) rotate(5deg); }
.avatar-btn.selected {
  border-color: var(--primary);
  background: rgba(92, 90, 230, 0.1);
  box-shadow: 0 0 0 3px rgba(92, 90, 230, 0.2);
  transform: scale(1.12);
}

/* ── Entry class grid (compact 6×2) ─────────────────────── */
.entry-class-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 8px;
}

.entry-class-btn {
  padding: 10px 4px;
  background: #FFFFFF;
  border: 2px solid var(--border);
  border-radius: var(--radius-md);
  cursor: pointer;
  text-align: center;
  font-family: 'Outfit', sans-serif;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text-muted);
  transition: all var(--transition);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  line-height: 1.2;
  box-shadow: var(--shadow-sm);
  touch-action: manipulation;
}

/* Stamp colors for kids */
.entry-class-btn:nth-child(4n+1) { border-color: rgba(92, 90, 230, 0.25); background: rgba(92, 90, 230, 0.02); }
.entry-class-btn:nth-child(4n+2) { border-color: rgba(255, 82, 125, 0.25); background: rgba(255, 82, 125, 0.02); }
.entry-class-btn:nth-child(4n+3) { border-color: rgba(251, 191, 36, 0.3); background: rgba(251, 191, 36, 0.02); }
.entry-class-btn:nth-child(4n+4) { border-color: rgba(39, 201, 108, 0.25); background: rgba(39, 201, 108, 0.02); }

.entry-class-btn:nth-child(4n+1):hover { background: rgba(92, 90, 230, 0.08); color: var(--primary); transform: translateY(-4px) scale(1.06); }
.entry-class-btn:nth-child(4n+2):hover { background: rgba(255, 82, 125, 0.08); color: var(--accent); transform: translateY(-4px) scale(1.06); }
.entry-class-btn:nth-child(4n+3):hover { background: rgba(251, 191, 36, 0.12); color: #B45309; transform: translateY(-4px) scale(1.06); }
.entry-class-btn:nth-child(4n+4):hover { background: rgba(39, 201, 108, 0.08); color: var(--accent2); transform: translateY(-4px) scale(1.06); }

.entry-class-btn.selected {
  background: var(--primary) !important;
  color: #FFFFFF !important;
  border-color: var(--primary) !important;
  box-shadow: 0 8px 20px rgba(92, 90, 230, 0.3);
  transform: translateY(-4px) scale(1.08) rotate(-3deg);
}

.entry-class-btn .ecb-num { font-size: 1rem; font-weight: 800; }
.entry-class-btn .ecb-lbl { font-size: 0.6rem; color: var(--text-dim); }

.entry-error {
  font-size: 0.82rem;
  color: var(--accent);
  margin-top: 10px;
  font-weight: 600;
}

/* Start Quiz button */
.btn-login-full {
  width: 100%;
  padding: 16px;
  font-size: 1.15rem;
  box-shadow: 0 8px 24px rgba(92, 90, 230, 0.3);
  border-radius: var(--radius-full);
  transition: all var(--transition);
}
.btn-login-full:hover {
  transform: translateY(-3px) scale(1.02);
  box-shadow: 0 12px 32px rgba(92, 90, 230, 0.45);
}

.entry-hint {
  text-align: center;
  margin-top: 14px;
  font-size: 0.8rem;
  color: var(--text-dim);
}

/* ── Responsive: stack panels on mobile ───────────────────── */
@media (max-width: 768px) {
  .entry-page-layout { flex-direction: column; }
  .entry-branding {
    flex: none;
    padding: 44px 24px;
    border-right: none;
    border-bottom: 1px solid var(--border);
    align-items: center;
    text-align: center;
  }
  .entry-branding h1 { font-size: 1.8rem; }
  .entry-features { display: none; }
  .entry-form-panel { border-left: none; padding: 20px 16px; }
  .entry-section { padding: 20px 18px; margin-bottom: 16px; }
  .entry-class-grid { grid-template-columns: repeat(6, 1fr); gap: 6px; }
  .entry-class-btn { padding: 8px 2px; font-size: 0.78rem; }
}

@media (max-width: 480px) {
  .entry-class-grid { grid-template-columns: repeat(4, 1fr); }
  .avatar-grid { grid-template-columns: repeat(4, 1fr); }
}

/* ============================================================
   SCREEN 2: CLASS SELECT
   ============================================================ */
#screen-class-select { padding: 0; }

.class-select-header {
  padding: 28px 32px 20px;
  border-bottom: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(10px);
  position: sticky; top: 0; z-index: 10;
}

.class-select-header h2 { font-size: 1.5rem; }
.class-select-greeting { color: var(--text-muted); margin-top: 4px; font-size: 1rem; }

.class-select-body { padding: 28px 32px 40px; flex: 1; }
.class-select-body > p { margin-bottom: 20px; color: var(--text-muted); }

.class-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 16px;
}

.class-card {
  background: #FFFFFF;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 22px 18px;
  cursor: pointer;
  text-align: left;
  display: flex;
  flex-direction: column;
  gap: 8px;
  transition: all var(--transition);
  color: var(--text);
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.class-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(92, 90, 230, 0.08), transparent);
  opacity: 0;
  transition: opacity var(--transition);
}

.class-card:hover {
  border-color: var(--primary);
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
}
.class-card:hover::before { opacity: 1; }

.class-number {
  font-size: 1.2rem;
  font-weight: 800;
  color: var(--primary-light);
}

.class-subjects {
  font-size: 0.78rem;
  color: var(--text-muted);
  line-height: 1.4;
}

.class-pts-hint {
  font-size: 0.75rem;
  color: var(--accent3);
  font-weight: 600;
  margin-top: 4px;
}

/* Back button nav */
.screen-nav {
  display: flex;
  align-items: center;
  gap: 16px;
}

.btn-nav-back {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 1.2rem;
  cursor: pointer;
  padding: 6px;
  border-radius: var(--radius-sm);
  transition: color var(--transition-fast);
  display: flex; align-items: center; gap: 4px;
  font-family: 'Outfit', sans-serif;
  font-size: 0.9rem;
}
.btn-nav-back:hover { color: var(--primary-light); }

/* ============================================================
   SCREEN 3: QUIZ
   ============================================================ */
#screen-quiz { padding: 0; }

.quiz-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 28px;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  position: sticky; top: 0; z-index: 10;
  flex-wrap: wrap;
  gap: 12px;
}

.quiz-header-left {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.quiz-class-label {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--primary);
}

.quiz-topic-badge {
  display: inline-block;
  padding: 3px 10px;
  background: rgba(92, 90, 230, 0.08);
  border: 1px solid rgba(92, 90, 230, 0.2);
  border-radius: var(--radius-full);
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--primary);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

/* Timer Ring */
.quiz-timer-box {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  position: relative;
}

.timer-ring-svg {
  transform: rotate(-90deg);
  width: 72px;
  height: 72px;
}

.timer-ring-bg {
  fill: none;
  stroke: rgba(92, 90, 230, 0.08);
  stroke-width: 4;
}

#quiz-timer-ring {
  fill: none;
  stroke: var(--accent2);
  stroke-width: 4;
  stroke-linecap: round;
  stroke-dasharray: 226.19;  /* 2π×36 */
  stroke-dashoffset: 0;
  transition: stroke-dashoffset 1s linear, stroke 0.3s ease;
}

.timer-value-overlay {
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--text);
  pointer-events: none;
}

.quiz-timer-box.timer-warning #quiz-timer-ring { stroke: var(--warn); }
.quiz-timer-box.timer-danger  #quiz-timer-ring { stroke: var(--danger); animation: pulse 0.5s ease-in-out infinite alternate; }

@keyframes pulse { from { opacity: 1; } to { opacity: 0.5; } }

/* Progress Bar */
.quiz-progress-wrap {
  padding: 0 28px;
  margin-top: 4px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.quiz-progress-bar {
  flex: 1;
  height: 8px;
  background: rgba(92, 90, 230, 0.08);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.quiz-progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--primary), var(--primary-light));
  border-radius: var(--radius-full);
  transition: width 0.4s ease;
  width: 0%;
}

.quiz-question-counter {
  font-size: 0.8rem;
  color: var(--text-muted);
  white-space: nowrap;
  font-weight: 600;
}

/* Difficulty badge */
.diff-badge {
  font-size: 0.68rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  padding: 3px 10px;
  border-radius: var(--radius-full);
}
.diff-easy   { background: rgba(67,233,123,0.15); color: var(--accent2); border: 1px solid rgba(67,233,123,0.3); }
.diff-medium { background: rgba(255,159,67,0.15);  color: var(--warn);    border: 1px solid rgba(255,159,67,0.3); }
.diff-hard   { background: rgba(255,71,87,0.15);   color: var(--danger);  border: 1px solid rgba(255,71,87,0.3); }

/* Question body */
.quiz-body {
  flex: 1;
  padding: 28px;
  display: flex;
  flex-direction: column;
  gap: 24px;
  max-width: 760px;
  margin: 0 auto;
  width: 100%;
}

.quiz-question-card {
  padding: 28px;
}

.question-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
}

.quiz-question-text {
  font-size: clamp(1.05rem, 2.5vw, 1.3rem);
  font-weight: 600;
  line-height: 1.5;
  color: var(--text);
}

/* Options Grid */
.quiz-options {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

.option-btn {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px 20px;
  background: #FFFFFF;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-md);
  cursor: pointer;
  font-family: 'Outfit', sans-serif;
  font-size: 1.05rem;
  color: var(--text);
  text-align: left;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.option-btn::before {
  content: '';
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 4px;
  background: var(--primary);
  transform: scaleY(0);
  transition: transform var(--transition);
}

.option-btn:hover {
  border-color: var(--primary);
  background: var(--card-hover);
  transform: translateX(6px);
  box-shadow: var(--shadow-md);
}
.option-btn:hover::before { transform: scaleY(1); }

.option-label {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px; height: 32px;
  border-radius: var(--radius-sm);
  background: rgba(92, 90, 230, 0.08);
  border: 1px solid rgba(92, 90, 230, 0.2);
  font-weight: 800;
  font-size: 0.85rem;
  color: var(--primary);
  flex-shrink: 0;
}

.option-text { flex: 1; line-height: 1.4; }

.option-btn.correct {
  border-color: var(--accent2);
  background: rgba(67,233,123,0.12);
  animation: correctPop 0.3s ease;
}
.option-btn.correct .option-label {
  background: rgba(67,233,123,0.3);
  border-color: var(--accent2);
  color: var(--accent2);
}

.option-btn.incorrect {
  border-color: var(--danger);
  background: rgba(255,71,87,0.1);
  animation: wrongShake 0.4s ease;
}
.option-btn.incorrect .option-label {
  background: rgba(255,71,87,0.3);
  border-color: var(--danger);
  color: var(--danger);
}

@keyframes correctPop  { 0%,100%{transform:scale(1)} 50%{transform:scale(1.02)} }
@keyframes wrongShake  { 0%,100%{transform:translateX(0)} 25%{transform:translateX(-6px)} 75%{transform:translateX(6px)} }

.option-btn:disabled { cursor: not-allowed; }

/* Quiz footer */
.quiz-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 28px;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(10px);
  border-top: 1px solid var(--border);
  gap: 16px;
  flex-wrap: wrap;
}

.quiz-stat {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.9rem;
}

.quiz-stat-icon { font-size: 1.1rem; }

.quiz-stat-label { color: var(--text-muted); }

.quiz-stat-value {
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--accent3);
}

.streak-wrap { transition: all var(--transition); }
.streak-wrap.streak-active .quiz-stat-value { color: var(--accent); animation: streakGlow 0.5s ease; }
@keyframes streakGlow { 0%,100%{text-shadow:none} 50%{text-shadow:0 0 12px var(--accent)} }

/* Answer feedback overlay */
.answer-feedback {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-size: 1.6rem;
  font-weight: 900;
  pointer-events: none;
  z-index: 100;
  opacity: 0;
  transition: opacity 0.2s;
  text-shadow: 0 2px 12px rgba(0,0,0,0.5);
}

.fb-correct { color: var(--accent2); }
.fb-wrong   { color: var(--danger); }

/* Streak toast */
#streak-toast {
  position: fixed;
  top: 80px;
  left: 50%;
  transform: translateX(-50%) translateY(-20px);
  background: linear-gradient(135deg, var(--accent), #e0407a);
  color: #fff;
  padding: 12px 28px;
  border-radius: var(--radius-full);
  font-size: 0.95rem;
  font-weight: 700;
  box-shadow: var(--shadow-md);
  z-index: 200;
  opacity: 0;
  transition: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
  pointer-events: none;
}

#streak-toast.toast-show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* Quit button */
.btn-quit {
  background: none;
  border: 1px solid rgba(255,71,87,0.3);
  color: var(--danger);
  border-radius: var(--radius-full);
  padding: 6px 16px;
  font-size: 0.8rem;
  font-family: 'Outfit', sans-serif;
  cursor: pointer;
  transition: all var(--transition-fast);
}
.btn-quit:hover { background: rgba(255,71,87,0.1); }

/* ============================================================
   SCREEN 4: RESULTS
   ============================================================ */
#screen-results { padding: 0; }

.results-header {
  padding: 28px 32px 20px;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  text-align: center;
}

.results-body { padding: 32px; max-width: 820px; margin: 0 auto; width: 100%; }

/* Score circle */
.score-circle-wrap {
  display: flex;
  justify-content: center;
  margin-bottom: 32px;
}

.score-circle-svg {
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  transform: rotate(-90deg);
}

.score-ring-bg  { fill: none; stroke: rgba(92, 90, 230, 0.08); stroke-width: 10; }

#result-score-ring {
  fill: none;
  stroke: url(#scoreGrad);
  stroke-width: 10;
  stroke-linecap: round;
  stroke-dasharray: 339.29;  /* 2π×54 */
  stroke-dashoffset: 339.29;
  transition: stroke-dashoffset 1.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.score-overlay-text {
  position: relative;
  z-index: 2;
  text-align: center;
  transform: rotate(0deg);
}

.score-circle-container { 
  position: relative; 
  width: 160px; height: 160px; 
  display: flex; align-items: center; justify-content: center;
  margin: 0 auto;
}

#result-pct {
  font-size: 2.2rem;
  font-weight: 900;
  background: linear-gradient(135deg, var(--primary-light), var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  display: block;
}

/* Badge */
.result-badge {
  text-align: center;
  margin-bottom: 28px;
}

.result-badge-emoji { font-size: 3.5rem; display: block; animation: badgePop 0.6s cubic-bezier(0.34, 1.56, 0.64, 1); }
@keyframes badgePop { from{transform:scale(0) rotate(-20deg);opacity:0} to{transform:scale(1) rotate(0);opacity:1} }
.result-badge-label { font-size: 1.1rem; font-weight: 700; color: var(--accent3); margin-top: 4px; }

/* Stats grid */
.result-stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
  gap: 14px;
  margin-bottom: 28px;
}

.result-stat-card {
  background: #FFFFFF;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 18px 14px;
  text-align: center;
  box-shadow: var(--shadow-sm);
}

.result-stat-icon { font-size: 1.5rem; }
.result-stat-value { font-size: 1.5rem; font-weight: 800; color: var(--primary); margin: 6px 0 2px; }
.result-stat-label { font-size: 0.75rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.05em; }

/* Breakdown table */
.breakdown-table-wrap {
  overflow-x: auto;
  margin-bottom: 28px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
}

.breakdown-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
  background: #FFFFFF;
}

.breakdown-table th {
  background: rgba(92, 90, 230, 0.08);
  color: var(--primary);
  padding: 12px 14px;
  text-align: left;
  font-weight: 700;
  letter-spacing: 0.04em;
  white-space: nowrap;
}

.breakdown-table td {
  padding: 10px 14px;
  border-top: 1px solid rgba(92, 90, 230, 0.1);
  color: var(--text-muted);
  vertical-align: top;
}

.breakdown-table tr:hover td { background: rgba(92, 90, 230, 0.03); }
.correct-ans { color: var(--accent2) !important; font-weight: 600; }
.pts-earned  { color: var(--accent3) !important; font-weight: 700; }
.pts-zero    { color: var(--danger)  !important; }

/* Result actions */
.result-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  justify-content: center;
  padding-bottom: 40px;
}

/* Confetti */
#confetti-canvas {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 999;
  display: none;
}

/* ============================================================
   SCREEN 5: DASHBOARD (Mobile-First Base Styles)
   ============================================================ */
#screen-dashboard { padding: 0; overflow-y: auto; }

/* ── Topbar (Mobile-First Base) ──────────────────────────── */
.dashboard-topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  position: sticky; top: 0; z-index: 10;
  gap: 10px;
}

.topbar-brand {
  font-size: 0.95rem;
  font-weight: 800;
  color: var(--primary);
  letter-spacing: 0.02em;
}

.topbar-actions { display: flex; gap: 8px; }
.btn-sm { padding: 8px 14px; font-size: 0.8rem; }

/* ── Hero Stack (Mobile-First Base: 1 Column) ────────────── */
.dash-hero {
  display: flex;
  flex-direction: column;
  gap: 16px;
  padding: 16px 16px 8px;
}

/* User Card */
.dash-user-card {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 20px;
  position: relative;
  overflow: hidden;
}

.dash-user-card::before {
  content: '';
  position: absolute; inset: 0;
  background: linear-gradient(135deg, rgba(92, 90, 230, 0.06), transparent 60%);
  pointer-events: none;
}

.dash-avatar {
  width: 56px; height: 56px;
  background: rgba(92, 90, 230, 0.08);
  border: 2px solid var(--border-bright);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 2rem;
  flex-shrink: 0;
  box-shadow: 0 4px 12px rgba(92, 90, 230, 0.15);
}

.dash-user-info { flex: 1; min-width: 0; }

.dash-welcome-label {
  font-size: 0.7rem;
  color: var(--text-dim);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 2px;
}

.dash-user-name-big {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--text);
  margin-bottom: 4px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.dash-sub { font-size: 0.76rem; color: var(--text-muted); }

/* Points pill */
.dash-points-pill {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1px;
  background: rgba(251, 191, 36, 0.12);
  border: 1px solid rgba(251, 191, 36, 0.3);
  border-radius: var(--radius-md);
  padding: 10px 12px;
  flex-shrink: 0;
  text-align: center;
  position: relative; z-index: 1;
}
.dpp-icon { font-size: 1.2rem; }
.dpp-value { font-size: 1.25rem; font-weight: 900; color: #D97706; line-height: 1; }
.dpp-label { font-size: 0.65rem; color: var(--text-muted); font-weight: 600; }

/* Locked Class Card */
.dash-class-card {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 20px;
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  background: #FFFFFF;
  border: 1.5px solid var(--border);
}

.dash-class-card::before {
  content: '';
  position: absolute; inset: 0;
  background: linear-gradient(135deg, rgba(255, 82, 125, 0.04), rgba(92, 90, 230, 0.04));
  pointer-events: none;
}

.dcc-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  position: relative; z-index: 1;
}

.dcc-class-badge { display: flex; align-items: center; gap: 12px; }

.dcc-class-icon {
  font-size: 1.8rem;
  width: 46px; height: 46px;
  display: flex; align-items: center; justify-content: center;
  background: rgba(92, 90, 230, 0.06);
  border: 1.5px solid rgba(92, 90, 230, 0.2);
  border-radius: var(--radius-md);
  flex-shrink: 0;
}

.dcc-label {
  font-size: 0.68rem;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 600;
  margin-bottom: 2px;
}

.dcc-class-name {
  font-size: 1.3rem;
  font-weight: 900;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.dcc-subjects {
  font-size: 0.8rem;
  color: var(--text-muted);
  line-height: 1.4;
  position: relative; z-index: 1;
  min-height: 1.4em;
}

.dash-subjects-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
  position: relative; z-index: 1;
}

.subject-quiz-btn {
  background: #FFFFFF;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-md);
  padding: 12px 6px;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  transition: all var(--transition);
  box-shadow: var(--shadow-sm);
  font-family: 'Outfit', sans-serif;
  text-align: center;
}

.subject-quiz-btn:hover {
  border-color: var(--primary);
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

.subject-icon {
  font-size: 1.6rem;
}

.subject-name {
  font-size: 0.85rem;
  font-weight: 800;
  color: var(--text);
}

.subject-count {
  font-size: 0.65rem;
  color: var(--text-dim);
  font-weight: 600;
}

.subject-quiz-btn.btn-all-subjects {
  grid-column: span 2;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  border: none;
  padding: 12px;
  flex-direction: row;
  justify-content: center;
  gap: 8px;
}

.subject-quiz-btn.btn-all-subjects .subject-name {
  color: #FFFFFF;
}

.subject-quiz-btn.btn-all-subjects .subject-count {
  color: rgba(255, 255, 255, 0.75);
}

.subject-quiz-btn.btn-all-subjects:hover {
  box-shadow: 0 6px 20px rgba(92, 90, 230, 0.35);
  transform: translateY(-3px) scale(1.01);
}

/* Dashboard body */
.dashboard-body { padding: 16px 16px 40px; }

/* Quick stats (Mobile-First: 2 Columns Grid) */
.dash-stats-row {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
  margin-bottom: 24px;
}

.dash-stat-card {
  background: #FFFFFF;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 16px 12px;
  text-align: center;
  transition: all var(--transition);
  box-shadow: var(--shadow-sm);
}

.dash-stat-card:hover { border-color: var(--border-bright); transform: translateY(-2px); box-shadow: var(--shadow-md); }
.dash-stat-icon { font-size: 1.4rem; margin-bottom: 6px; }
.dash-stat-value { font-size: 1.35rem; font-weight: 800; color: var(--primary); }
.dash-stat-label { font-size: 0.7rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.04em; margin-top: 2px; }

/* History section */
.section-title {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 12px;
}

.history-row {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 18px;
  background: #FFFFFF;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  margin-bottom: 8px;
  font-size: 0.9rem;
  transition: all var(--transition-fast);
  flex-wrap: wrap;
  box-shadow: var(--shadow-sm);
}
.history-row:hover { border-color: var(--border-bright); }

.history-class { font-weight: 700; color: var(--primary); min-width: 60px; }
.history-badge { font-size: 0.85rem; flex: 1; }
.history-pct   { font-weight: 700; color: var(--accent2); min-width: 48px; }
.history-pts   { font-weight: 700; color: var(--accent3); min-width: 60px; }
.history-date  { color: var(--text-dim); font-size: 0.8rem; }

.history-empty {
  text-align: center;
  padding: 40px;
  color: var(--text-muted);
  background: #FFFFFF;
  border: 1.5px dashed var(--border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
}

/* ============================================================
   SCREEN 6: STORE
   ============================================================ */
#screen-store { padding: 0; }

.store-header {
  padding: 24px 32px;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 14px;
  position: sticky; top: 0; z-index: 10;
}

.store-header-left h2 { font-size: 1.4rem; }
.store-header-left p  { color: var(--text-muted); font-size: 0.9rem; margin-top: 2px; }

.store-balance-pill {
  display: flex;
  align-items: center;
  gap: 8px;
  background: rgba(251, 191, 36, 0.12);
  border: 1px solid rgba(251, 191, 36, 0.3);
  border-radius: var(--radius-full);
  padding: 8px 20px;
  font-size: 1rem;
  font-weight: 700;
  color: #D97706; /* darker orange-yellow for light theme contrast */
}

/* Category filters */
.store-categories {
  display: flex;
  gap: 8px;
  padding: 18px 32px 0;
  flex-wrap: wrap;
}

.cat-filter-btn {
  padding: 7px 18px;
  background: #FFFFFF;
  border: 1px solid var(--border);
  border-radius: var(--radius-full);
  color: var(--text-muted);
  cursor: pointer;
  font-family: 'Outfit', sans-serif;
  font-size: 0.85rem;
  font-weight: 600;
  transition: all var(--transition-fast);
  box-shadow: var(--shadow-sm);
}
.cat-filter-btn:hover  { border-color: var(--primary); color: var(--primary); }
.cat-filter-btn.active {
  background: rgba(92, 90, 230, 0.1);
  border-color: var(--primary);
  color: var(--primary-dark);
}

/* Store grid */
.store-body { padding: 20px 32px 40px; }

.store-items-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(230px, 1fr));
  gap: 18px;
  margin-bottom: 40px;
}

.store-card {
  background: #FFFFFF;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-lg);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  transition: all var(--transition);
  box-shadow: var(--shadow-sm);
}

.store-card:hover {
  border-color: var(--primary);
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
}

.store-card.unaffordable { opacity: 0.6; }
.store-card.unaffordable:hover { border-color: var(--border); transform: none; box-shadow: none; }

.store-card-icon {
  font-size: 3rem;
  padding: 28px;
  text-align: center;
  background: linear-gradient(180deg, rgba(92, 90, 230, 0.06), transparent);
}

.store-card-body { padding: 0 18px 14px; flex: 1; }
.store-card-name { font-size: 1rem; font-weight: 700; margin-bottom: 5px; color: var(--text); }
.store-card-desc { font-size: 0.8rem; color: var(--text-muted); line-height: 1.4; margin-bottom: 10px; }

.store-card-meta {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.store-category-tag {
  font-size: 0.7rem;
  padding: 2px 8px;
  background: rgba(92, 90, 230, 0.08);
  border: 1px solid rgba(92, 90, 230, 0.25);
  border-radius: var(--radius-full);
  color: var(--primary);
  font-weight: 600;
}

.store-stock { font-size: 0.72rem; color: var(--text-dim); align-self: center; }

.store-card-footer {
  padding: 14px 18px;
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.store-cost {
  display: flex;
  align-items: center;
  gap: 5px;
}
.cost-icon  { font-size: 0.9rem; }
.cost-value { font-size: 0.95rem; font-weight: 700; color: #D97706; }

.btn-redeem {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #fff;
  border: none;
  border-radius: var(--radius-full);
  padding: 8px 18px;
  font-family: 'Outfit', sans-serif;
  font-size: 0.85rem;
  font-weight: 700;
  cursor: pointer;
  transition: all var(--transition-fast);
  box-shadow: 0 3px 12px rgba(92, 90, 230, 0.25);
}
.btn-redeem:hover { transform: scale(1.04); box-shadow: 0 5px 18px rgba(92, 90, 230, 0.4); }

.short-pts {
  font-size: 0.75rem;
  color: var(--danger);
  font-weight: 600;
}

/* Inventory */
.inventory-title {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 14px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.inventory-grid { display: flex; flex-direction: column; gap: 8px; }

.inventory-item {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 12px 18px;
  background: #FFFFFF;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
}

.inv-emoji { font-size: 1.5rem; }
.inv-name  { font-weight: 600; font-size: 0.9rem; color: var(--text); }
.inv-date  { font-size: 0.75rem; color: var(--text-dim); }

.inventory-empty {
  text-align: center;
  padding: 40px;
  color: var(--text-muted);
  background: #FFFFFF;
  border: 1.5px dashed var(--border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
}

.inv-empty-icon { font-size: 3rem; display: block; margin-bottom: 12px; }

/* Store toast */
.store-toast {
  position: fixed;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%) translateY(80px);
  padding: 14px 28px;
  border-radius: var(--radius-full);
  font-size: 0.95rem;
  font-weight: 600;
  color: #fff;
  z-index: 1000;
  pointer-events: none;
  opacity: 0;
  transition: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
  white-space: nowrap;
  box-shadow: var(--shadow-md);
}
.store-toast.toast-success { background: linear-gradient(135deg, var(--accent2), #27ae60); }
.store-toast.toast-error   { background: linear-gradient(135deg, var(--danger), #c0392b); }
.store-toast.toast-show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
/* ── Desktop overrides (769px and above) ───────────────────── */
@media (min-width: 769px) {
  .dashboard-topbar { padding: 16px 32px; }
  .topbar-brand     { font-size: 1rem; }
  .btn-sm           { padding: 8px 18px; font-size: 0.85rem; }

  .dash-hero {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    padding: 28px 32px 8px;
  }

  .dash-user-card { padding: 28px; gap: 18px; }
  .dash-avatar    { width: 72px; height: 72px; font-size: 2.4rem; }
  .dash-user-name-big { font-size: 1.5rem; }
  .dash-points-pill { padding: 14px 16px; gap: 2px; }
  .dpp-value      { font-size: 1.4rem; }

  .dash-class-card { padding: 26px 28px; gap: 14px; }
  .dcc-class-icon  { width: 52px; height: 52px; font-size: 2rem; }
  .dcc-class-name  { font-size: 1.4rem; }
  .dcc-subjects    { font-size: 0.82rem; line-height: 1.5; }

  .dashboard-body  { padding: 20px 32px 40px; }
  .dash-stats-row  { grid-template-columns: repeat(4, 1fr); gap: 14px; }
}

@media (max-width: 600px) {
  .quiz-options    { grid-template-columns: 1fr; }
  .class-grid      { grid-template-columns: repeat(3, 1fr); }
  .class-subjects  { display: none; }
  .store-items-grid { grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); }
  .store-body      { padding: 16px 16px 40px; }
  .results-body    { padding: 20px; }
  .quiz-header     { padding: 14px 18px; }
  .quiz-body       { padding: 18px; }
  .quiz-footer     { padding: 12px 18px; }
  .result-actions  { flex-direction: column; }
  .result-actions .btn { width: 100%; }
}

@media (max-width: 380px) {
  .avatar-grid { grid-template-columns: repeat(4, 1fr); }
}


/* ── Utility ───────────────────────────────────────────────── */
.mt-4  { margin-top: 16px; }
.mb-4  { margin-bottom: 16px; }
.flex  { display: flex; }
.gap-2 { gap: 8px; }
.text-center { text-align: center; }
.hidden { display: none !important; }

.entry-class-subjects-preview {
  margin-top: 14px;
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--primary-dark);
  text-align: center;
  background: rgba(92, 90, 230, 0.08);
  padding: 8px 12px;
  border-radius: var(--radius-md);
  border: 1px dashed rgba(92, 90, 230, 0.25);
  animation: previewFadeIn 0.3s ease-out;
}

@keyframes previewFadeIn {
  from { opacity: 0; transform: translateY(-5px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* Stream selection panel for High School */
.entry-stream-selection {
  margin-top: 20px;
  animation: previewFadeIn 0.35s ease-out;
}

.entry-stream-grid {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 10px;
}

.entry-stream-btn {
  padding: 12px 16px;
  background: #FFFFFF;
  border: 2px solid var(--border);
  border-radius: var(--radius-md);
  cursor: pointer;
  font-family: 'Outfit', sans-serif;
  font-weight: 700;
  font-size: 0.88rem;
  color: var(--text-muted);
  text-align: left;
  transition: all var(--transition-fast);
  box-shadow: var(--shadow-sm);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.entry-stream-btn:hover {
  border-color: var(--primary);
  background: rgba(92, 90, 230, 0.04);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.entry-stream-btn.selected {
  border-color: var(--primary);
  background: rgba(92, 90, 230, 0.08);
  color: var(--primary-dark);
  box-shadow: 0 0 0 3px rgba(92, 90, 230, 0.15);
  transform: scale(1.02);
}