/* ========== CYBERPUNK 2077 DESIGN SYSTEM — v2 UX ========== */
@import url('https://fonts.googleapis.com/css2?family=Orbitron:wght@400;500;600;700;800;900&family=Rajdhani:wght@300;400;500;600;700&family=Share+Tech+Mono&display=swap');

:root {
  --font-display: 'Orbitron', sans-serif;
  --font-body: 'Rajdhani', sans-serif;
  --font-mono: 'Share Tech Mono', monospace;

  /* Lifted bg a notch for better contrast */
  --bg-deep: #08080d;
  --bg-panel: #0e1018;
  --bg-card: #13151f;
  --bg-elevated: #1a1d2e;
  --bg-input: #10121a;

  --cyan: #00f0ff;
  --cyan-dim: #00a0aa;
  --cyan-soft: #80f7ff;           /* softer cyan for body text accents */
  --cyan-glow: rgba(0,240,255,0.12);
  --cyan-glow-strong: rgba(0,240,255,0.25);

  --yellow: #fcee09;
  --yellow-soft: #fdf570;
  --yellow-glow: rgba(252,238,9,0.10);

  --magenta: #ff2a6d;
  --magenta-glow: rgba(255,42,109,0.12);

  --red: #ff003c;
  --red-glow: rgba(255,0,60,0.12);

  --green: #05d9e8;
  --green-bright: #00ff9f;
  --green-glow: rgba(0,255,159,0.12);

  --orange: #ff6b00;
  --purple: #bd00ff;

  /* Boosted text contrast */
  --text-primary: #ededf0;
  --text-secondary: #9a9db0;      /* was #7a7d8e — lifted for WCAG AA */
  --text-tertiary: #5c5f72;       /* was #454757 */

  --border: rgba(0,240,255,0.07);
  --border-cyan: rgba(0,240,255,0.20);
  --border-yellow: rgba(252,238,9,0.18);

  --shadow-cyan: 0 0 16px rgba(0,240,255,0.08), 0 0 32px rgba(0,240,255,0.04);
  --shadow-yellow: 0 0 16px rgba(252,238,9,0.08), 0 0 32px rgba(252,238,9,0.04);
  --shadow-magenta: 0 0 16px rgba(255,42,109,0.12);

  --transition: 0.15s ease;
}

/* ========== RESET ========== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; -webkit-font-smoothing: antialiased; }
body {
  font-family: var(--font-body);
  font-weight: 500;
  background: var(--bg-deep);
  color: var(--text-primary);
  min-height: 100dvh;
  overflow-x: hidden;
  line-height: 1.5;
}
button { font-family: inherit; cursor: pointer; border: none; background: none; font-weight: 500; }
input, textarea { font-family: inherit; border: none; outline: none; background: none; }
a { text-decoration: none; color: inherit; }

/* Very subtle scanline — purely decorative, does not hurt readability */
body::after {
  content: '';
  position: fixed;
  inset: 0;
  background: repeating-linear-gradient(0deg, transparent, transparent 3px, rgba(0,240,255,0.008) 3px, rgba(0,240,255,0.008) 6px);
  pointer-events: none;
  z-index: 9999;
}

/* ========== ANIMATIONS ========== */
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
@keyframes slideUp { from { opacity: 0; transform: translateY(12px); } to { opacity: 1; transform: translateY(0); } }
@keyframes slideDown { from { opacity: 0; transform: translateY(-12px); } to { opacity: 1; transform: translateY(0); } }
@keyframes scaleIn { from { opacity: 0; transform: scale(0.97); } to { opacity: 1; transform: scale(1); } }
@keyframes glitchText {
  0%,100% { text-shadow: 1px 0 var(--magenta), -1px 0 var(--cyan); }
  50% { text-shadow: -1px 0 var(--magenta), 1px 0 var(--cyan); }
}
@keyframes neonPulse { 0%,100% { opacity: 1; } 50% { opacity: 0.85; } }
@keyframes confetti-fall { 0% { transform: translateY(-100%) rotate(0deg); opacity: 1; } 100% { transform: translateY(100vh) rotate(720deg); opacity: 0; } }
@keyframes shake { 0%,100% { transform: translateX(0); } 15%,45%,75% { transform: translateX(-5px); } 30%,60%,90% { transform: translateX(5px); } }
@keyframes correctPulse { 0% { box-shadow: 0 0 0 0 rgba(0,255,159,0.35); } 100% { box-shadow: 0 0 0 18px rgba(0,255,159,0); } }
@keyframes spin { to { transform: rotate(360deg); } }
@keyframes flicker { 0%,100% { opacity: 1; } 93% { opacity: 0.4; } 94% { opacity: 1; } 96% { opacity: 0.6; } 97% { opacity: 1; } }
@keyframes float { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-5px); } }

.animate-in { animation: slideUp 0.4s ease both; }
.animate-in-delay-1 { animation-delay: 0.06s; }
.animate-in-delay-2 { animation-delay: 0.12s; }
.animate-in-delay-3 { animation-delay: 0.18s; }
.animate-in-delay-4 { animation-delay: 0.24s; }
.animate-in-delay-5 { animation-delay: 0.30s; }

/* ========== LAYOUT ========== */
#app { min-height: 100dvh; }
.app-shell { display: flex; min-height: 100dvh; }

/* ============================
   SIDEBAR
   ============================ */
.sidebar {
  width: 264px;
  background: var(--bg-panel);
  border-right: 1px solid var(--border-cyan);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0; left: 0; bottom: 0;
  z-index: 100;
  transition: transform 0.3s ease;
}

/* Decorative gradient line on right edge */
.sidebar::before {
  content: '';
  position: absolute;
  top: 0; right: 0;
  width: 1px;
  height: 100%;
  background: linear-gradient(180deg, var(--cyan) 0%, transparent 30%, transparent 70%, var(--magenta) 100%);
  opacity: 0.4;
}

.sidebar-header {
  padding: 22px 18px 18px;
  display: flex;
  align-items: center;
  gap: 10px;
  border-bottom: 1px solid var(--border);
}

.sidebar-logo { font-size: 22px; animation: flicker 6s infinite; }

.sidebar-brand {
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 800;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--cyan);
  text-shadow: 0 0 10px rgba(0,240,255,0.4);
}

.sidebar-nav { padding: 10px; flex: 1; overflow-y: auto; }

.nav-section-label {
  font-family: var(--font-display);
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--text-tertiary);
  padding: 18px 10px 8px;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border-radius: 4px;
  font-size: 15px;
  font-weight: 600;
  color: var(--text-secondary);
  transition: all var(--transition);
  cursor: pointer;
  width: 100%;
  text-align: left;
  border: 1px solid transparent;
  margin-bottom: 2px;
}

.nav-item:hover { background: var(--cyan-glow); color: var(--cyan-soft); border-color: var(--border-cyan); }
.nav-item.active { background: var(--cyan-glow); color: var(--cyan); border-color: rgba(0,240,255,0.35); }

.nav-item-icon { font-size: 16px; width: 24px; text-align: center; flex-shrink: 0; }

.nav-item-badge {
  margin-left: auto;
  background: var(--magenta);
  color: white;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  min-width: 22px; height: 20px;
  border-radius: 4px;
  display: flex; align-items: center; justify-content: center;
  padding: 0 6px;
}

.nav-group-label {
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--text-tertiary);
  padding: 14px 12px 4px;
}

.nav-item-row {
  display: flex;
  align-items: center;
  gap: 2px;
}

.nav-reorder-btns {
  display: flex;
  flex-direction: column;
  gap: 1px;
  flex-shrink: 0;
  opacity: 0;
  transition: opacity 0.15s;
}
.nav-item-row:hover .nav-reorder-btns { opacity: 1; }
@media (hover: none) { .nav-reorder-btns { opacity: 1; } }

.nav-reorder-btns button {
  background: none;
  border: none;
  color: var(--text-tertiary);
  font-size: 11px;
  line-height: 1;
  padding: 2px 3px;
  cursor: pointer;
  border-radius: 3px;
  transition: color 0.15s, background 0.15s;
}
.nav-reorder-btns button:hover:not(:disabled) { color: var(--cyan); background: var(--cyan-glow); }
.nav-reorder-btns button:disabled { opacity: 0.2; cursor: default; }

.deck-group-label {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--text-tertiary);
  margin: 20px 0 8px;
}

.sidebar-user {
  padding: 14px 16px;
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 10px;
}

.user-avatar {
  width: 34px; height: 34px;
  border-radius: 6px;
  background: linear-gradient(135deg, var(--cyan), var(--magenta));
  display: flex; align-items: center; justify-content: center;
  color: var(--bg-deep);
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 13px;
  flex-shrink: 0;
}

.user-info { flex: 1; min-width: 0; }
.user-name { font-size: 14px; font-weight: 600; color: var(--text-primary); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

.user-logout {
  color: var(--text-tertiary);
  padding: 8px;
  border-radius: 4px;
  transition: all var(--transition);
  font-size: 16px;
}
.user-logout:hover { color: var(--magenta); background: var(--magenta-glow); }

/* ============================
   MAIN CONTENT
   ============================ */
.main-content {
  flex: 1;
  margin-left: 264px;
  padding: 32px 40px;
  max-width: 960px;
}

.page-header { margin-bottom: 28px; }

.page-title {
  font-family: var(--font-display);
  font-size: 24px;
  font-weight: 800;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--text-primary);
}

.page-subtitle {
  font-size: 15px;
  color: var(--text-secondary);
  margin-top: 6px;
  font-family: var(--font-mono);
}

/* ============================
   CYBERPUNK CORNER CUT — used sparingly
   ============================ */
.cp-cut {
  clip-path: polygon(0 0, calc(100% - 12px) 0, 100% 12px, 100% 100%, 12px 100%, 0 calc(100% - 12px));
}
.cp-cut-sm {
  clip-path: polygon(0 0, calc(100% - 8px) 0, 100% 8px, 100% 100%, 8px 100%, 0 calc(100% - 8px));
}

/* ============================
   AUTH
   ============================ */
.auth-page {
  min-height: 100dvh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  background: var(--bg-deep);
  position: relative;
  overflow: hidden;
}

.auth-page::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 20% 50%, rgba(0,240,255,0.05) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 50%, rgba(255,42,109,0.05) 0%, transparent 50%);
}

.auth-bg-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(0,240,255,0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,240,255,0.025) 1px, transparent 1px);
  background-size: 50px 50px;
  pointer-events: none;
}

.auth-container {
  width: 100%;
  max-width: 420px;
  position: relative;
  z-index: 1;
  animation: scaleIn 0.5s ease;
}

.auth-hero { text-align: center; margin-bottom: 36px; }

.auth-logo { font-size: 52px; margin-bottom: 14px; animation: float 4s ease-in-out infinite; }

.auth-brand {
  font-family: var(--font-display);
  font-size: 34px;
  font-weight: 900;
  letter-spacing: 6px;
  text-transform: uppercase;
  color: var(--cyan);
  text-shadow: 0 0 20px rgba(0,240,255,0.4), 0 0 40px rgba(0,240,255,0.15);
  animation: glitchText 10s infinite;
}

.auth-tagline {
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--text-secondary);
  margin-top: 10px;
}

.auth-card {
  background: var(--bg-card);
  border: 1px solid var(--border-cyan);
  border-radius: 8px;
  padding: 36px;
  position: relative;
}

.auth-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, var(--cyan), var(--magenta));
  border-radius: 8px 8px 0 0;
  opacity: 0.7;
}

.auth-card h2 {
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--cyan);
  margin-bottom: 28px;
}

/* ============================
   FORMS
   ============================ */
.form-group { margin-bottom: 18px; }

.form-label {
  display: block;
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-secondary);
  margin-bottom: 8px;
}

.form-input {
  width: 100%;
  padding: 12px 14px;
  background: var(--bg-input);
  border: 1.5px solid var(--border-cyan);
  border-radius: 6px;
  font-family: var(--font-body);
  font-size: 16px;
  font-weight: 500;
  color: var(--text-primary);
  transition: all var(--transition);
}

.form-input:focus {
  border-color: var(--cyan);
  box-shadow: 0 0 0 3px var(--cyan-glow), inset 0 0 8px var(--cyan-glow);
}

.form-input::placeholder { color: var(--text-tertiary); }

.form-textarea {
  width: 100%;
  padding: 12px 14px;
  background: var(--bg-input);
  border: 1.5px solid var(--border-cyan);
  border-radius: 6px;
  font-family: var(--font-body);
  font-size: 16px;
  font-weight: 500;
  color: var(--text-primary);
  transition: all var(--transition);
  resize: vertical;
  min-height: 80px;
  line-height: 1.5;
}

.form-textarea:focus {
  border-color: var(--cyan);
  box-shadow: 0 0 0 3px var(--cyan-glow), inset 0 0 8px var(--cyan-glow);
}

/* ============================
   BUTTONS — generous sizing, clear hierarchy
   ============================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: 6px;
  font-family: var(--font-display);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  transition: all var(--transition);
  cursor: pointer;
  border: 1.5px solid transparent;
}

.btn-primary {
  background: var(--cyan);
  color: var(--bg-deep);
  width: 100%;
}
.btn-primary:hover { background: #33f3ff; box-shadow: var(--shadow-cyan); transform: translateY(-1px); }
.btn-primary:active { transform: translateY(0); }

.btn-secondary {
  background: transparent;
  color: var(--cyan);
  border-color: var(--border-cyan);
}
.btn-secondary:hover { background: var(--cyan-glow); border-color: var(--cyan); }

.btn-ghost {
  color: var(--cyan);
  padding: 8px 14px;
  letter-spacing: 1px;
  font-size: 11px;
  border-radius: 4px;
}
.btn-ghost:hover { background: var(--cyan-glow); }

.btn-danger {
  background: var(--red-glow);
  color: var(--magenta);
  border-color: rgba(255,42,109,0.25);
}
.btn-danger:hover { background: var(--magenta); color: white; }

.btn-yellow {
  background: var(--yellow);
  color: var(--bg-deep);
}
.btn-yellow:hover { box-shadow: var(--shadow-yellow); transform: translateY(-1px); }

.btn-icon {
  width: 36px; height: 36px;
  padding: 0;
  font-size: 15px;
  display: flex; align-items: center; justify-content: center;
  border-radius: 6px;
}

.btn-sm { padding: 8px 16px; font-size: 10px; letter-spacing: 1px; }

.auth-switch {
  text-align: center;
  margin-top: 24px;
  font-size: 15px;
  color: var(--text-secondary);
}
.auth-switch button { color: var(--cyan); font-weight: 700; font-size: 15px; }
.auth-switch button:hover { text-decoration: underline; }

.form-error {
  background: var(--red-glow);
  color: var(--magenta);
  padding: 10px 14px;
  border: 1px solid rgba(255,42,109,0.25);
  border-radius: 6px;
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 18px;
  animation: slideDown 0.3s ease;
}

/* ============================
   STAT CARDS
   ============================ */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 14px;
  margin-bottom: 28px;
}

.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 20px;
  transition: all var(--transition);
}
.stat-card:hover { border-color: var(--border-cyan); box-shadow: var(--shadow-cyan); }

.stat-icon {
  width: 40px; height: 40px;
  display: flex; align-items: center; justify-content: center;
  font-size: 18px;
  margin-bottom: 12px;
  border-radius: 8px;
  border: 1px solid var(--border);
}

.stat-icon.blue { background: var(--cyan-glow); border-color: var(--border-cyan); }
.stat-icon.green { background: var(--green-glow); border-color: rgba(0,255,159,0.2); }
.stat-icon.orange { background: var(--yellow-glow); border-color: var(--border-yellow); }
.stat-icon.purple { background: var(--magenta-glow); border-color: rgba(255,42,109,0.2); }

.stat-value {
  font-family: var(--font-display);
  font-size: 28px;
  font-weight: 800;
  color: var(--text-primary);
  line-height: 1;
}

.stat-label {
  font-size: 13px;
  color: var(--text-secondary);
  margin-top: 4px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* ============================
   STREAK
   ============================ */
.streak-banner {
  background: linear-gradient(135deg, rgba(252,238,9,0.07), rgba(255,106,0,0.07));
  border: 1px solid var(--border-yellow);
  border-radius: 12px;
  padding: 22px 24px;
  display: flex;
  align-items: center;
  gap: 18px;
  margin-bottom: 28px;
}

.streak-fire { font-size: 38px; }
.streak-number { font-family: var(--font-display); font-size: 30px; font-weight: 900; color: var(--yellow); text-shadow: 0 0 12px var(--yellow-glow); }
.streak-text { font-size: 14px; color: var(--text-secondary); margin-top: 2px; }

/* ============================
   DECK CARDS
   ============================ */
.decks-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 14px;
}

.deck-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 22px;
  cursor: pointer;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}
.deck-card:hover { border-color: var(--cyan); box-shadow: var(--shadow-cyan); transform: translateY(-2px); }

.deck-card-accent {
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  border-radius: 10px 10px 0 0;
}

.deck-icon { font-size: 30px; margin-bottom: 12px; }
.deck-name { font-family: var(--font-display); font-size: 13px; font-weight: 700; letter-spacing: 1px; text-transform: uppercase; margin-bottom: 6px; color: var(--text-primary); }
.deck-description { font-size: 14px; color: var(--text-secondary); margin-bottom: 16px; line-height: 1.5; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; min-height: 20px; }

.deck-meta {
  display: flex;
  gap: 14px;
  font-size: 13px;
  color: var(--text-tertiary);
  font-weight: 600;
}

.deck-meta-item { display: flex; align-items: center; gap: 5px; }

.deck-due-badge {
  background: var(--magenta);
  color: white;
  font-family: var(--font-display);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.5px;
  padding: 3px 9px;
  border-radius: 4px;
}

.deck-card-new {
  border: 1.5px dashed var(--border-cyan);
  background: transparent;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 160px;
  color: var(--text-tertiary);
  transition: all var(--transition);
  border-radius: 10px;
}
.deck-card-new:hover { border-color: var(--cyan); color: var(--cyan); background: var(--cyan-glow); }
.deck-card-new-icon { font-size: 30px; margin-bottom: 8px; }
.deck-card-new-text { font-family: var(--font-display); font-size: 11px; font-weight: 700; letter-spacing: 1.5px; text-transform: uppercase; }

/* ============================
   MODAL
   ============================ */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.65);
  backdrop-filter: blur(6px);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  animation: fadeIn 0.2s ease;
}

.modal {
  background: var(--bg-panel);
  border: 1px solid var(--border-cyan);
  border-radius: 12px;
  padding: 32px;
  width: 100%;
  max-width: 500px;
  animation: scaleIn 0.25s ease;
  max-height: 90vh;
  overflow-y: auto;
  position: relative;
}

.modal::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, var(--cyan), var(--magenta));
  border-radius: 12px 12px 0 0;
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
}

.modal-title {
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--cyan);
}

.modal-close {
  width: 32px; height: 32px;
  border-radius: 6px;
  display: flex; align-items: center; justify-content: center;
  color: var(--text-tertiary);
  font-size: 20px;
  transition: all var(--transition);
}
.modal-close:hover { color: var(--magenta); background: var(--magenta-glow); }

.modal-actions { display: flex; gap: 12px; margin-top: 24px; }
.modal-actions .btn { flex: 1; }

/* ============================
   ICON & COLOR PICKERS
   ============================ */
.icon-picker { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 8px; }
.icon-option {
  width: 42px; height: 42px;
  border-radius: 8px;
  border: 1.5px solid var(--border);
  display: flex; align-items: center; justify-content: center;
  font-size: 22px;
  cursor: pointer;
  transition: all var(--transition);
}
.icon-option:hover { border-color: var(--cyan); background: var(--cyan-glow); }
.icon-option.selected { border-color: var(--cyan); background: var(--cyan-glow); box-shadow: 0 0 0 2px var(--cyan-glow); }

.color-picker { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 8px; }
.color-option {
  width: 30px; height: 30px;
  border-radius: 6px;
  cursor: pointer;
  transition: all var(--transition);
  border: 2.5px solid transparent;
}
.color-option:hover { transform: scale(1.15); }
.color-option.selected { border-color: var(--text-primary); box-shadow: 0 0 0 2px var(--bg-deep); }

/* ============================
   DECK DETAIL
   ============================ */
.deck-header {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 28px;
}

.deck-header-icon {
  font-size: 36px;
  width: 56px; height: 56px;
  display: flex; align-items: center; justify-content: center;
  border: 1px solid var(--border-cyan);
  border-radius: 10px;
  flex-shrink: 0;
}

.deck-header-info { flex: 1; }
.deck-header-title { font-family: var(--font-display); font-size: 20px; font-weight: 800; letter-spacing: 2px; text-transform: uppercase; }
.deck-header-desc { font-size: 15px; color: var(--text-secondary); margin-top: 6px; }

.deck-header-actions { display: flex; gap: 8px; flex-shrink: 0; align-items: flex-start; }

.deck-toolbar {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 20px;
  flex-wrap: wrap;
}

.card-list { display: flex; flex-direction: column; gap: 8px; }

.card-item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-left-width: 4px;
  border-radius: 8px;
  padding: 16px 18px;
  display: flex;
  align-items: center;
  gap: 14px;
  transition: all var(--transition);
}
.card-item:hover { border-color: var(--border-cyan); background: var(--bg-elevated); }

.card-item-content { flex: 1; min-width: 0; }
.card-item-front { font-size: 16px; font-weight: 700; margin-bottom: 3px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.card-item-back { font-size: 14px; color: var(--text-secondary); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

.card-item-status {
  font-family: var(--font-display);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.5px;
  padding: 4px 10px;
  border-radius: 4px;
  white-space: nowrap;
  text-transform: uppercase;
}
.card-item-status.new { background: var(--cyan-glow); color: var(--cyan); border: 1px solid var(--border-cyan); }
.card-item-status.learning { background: var(--yellow-glow); color: var(--yellow-soft); border: 1px solid var(--border-yellow); }
.card-item-status.review { background: var(--green-glow); color: var(--green-bright); border: 1px solid rgba(0,255,159,0.2); }
.card-item-status.mastered { background: var(--magenta-glow); color: var(--magenta); border: 1px solid rgba(255,42,109,0.2); }

.card-item-actions { display: flex; gap: 6px; opacity: 0; transition: opacity var(--transition); }
.card-item:hover .card-item-actions { opacity: 1; }
@media (hover: none) { .card-item-actions { opacity: 1; } }

/* ============================
   REVIEW MODE
   ============================ */
.review-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: calc(100dvh - 120px);
  padding: 20px 0;
}

.review-progress-bar {
  width: 100%;
  max-width: 580px;
  height: 4px;
  background: var(--bg-elevated);
  border-radius: 2px;
  margin-bottom: 24px;
  overflow: hidden;
}

.review-progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--cyan), var(--magenta));
  border-radius: 2px;
  transition: width 0.4s ease;
  box-shadow: 0 0 8px var(--cyan);
}

.review-deck-info {
  font-size: 14px;
  color: var(--text-secondary);
  font-weight: 600;
  margin-bottom: 4px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.review-counter {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--text-tertiary);
  margin-bottom: 24px;
}

/* ============================
   PROMPT CARD
   ============================ */
.prompt-card {
  width: 100%;
  max-width: 580px;
  background: var(--bg-card);
  border: 1px solid var(--border-cyan);
  border-radius: 12px;
  padding: 40px 32px;
  text-align: center;
  position: relative;
  margin-bottom: 24px;
}

.prompt-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, var(--cyan), transparent 50%, var(--magenta));
  border-radius: 12px 12px 0 0;
}

.prompt-label {
  font-family: var(--font-display);
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 3px;
  color: var(--text-tertiary);
  margin-bottom: 16px;
}

.prompt-text {
  font-size: 28px;
  font-weight: 700;
  line-height: 1.4;
  color: var(--text-primary);
}

.prompt-notes {
  font-size: 14px;
  color: var(--text-tertiary);
  margin-top: 12px;
  font-style: italic;
  line-height: 1.5;
}

/* ============================
   ANSWER INPUT
   ============================ */
.answer-section {
  width: 100%;
  max-width: 580px;
  margin-bottom: 16px;
}

.answer-input {
  width: 100%;
  padding: 16px 20px;
  background: var(--bg-input);
  border: 2px solid var(--border-cyan);
  border-radius: 10px;
  font-family: var(--font-body);
  font-size: 22px;
  font-weight: 600;
  color: var(--text-primary);
  text-align: center;
  letter-spacing: 0.5px;
  transition: all 0.2s ease;
}

.answer-input:focus {
  border-color: var(--cyan);
  box-shadow: 0 0 0 4px var(--cyan-glow), 0 0 24px var(--cyan-glow);
}

.answer-input::placeholder {
  color: var(--text-tertiary);
  font-weight: 400;
  font-size: 17px;
}

.answer-input.correct {
  border-color: var(--green-bright);
  box-shadow: 0 0 0 4px var(--green-glow), 0 0 24px var(--green-glow);
  color: var(--green-bright);
  animation: correctPulse 0.5s ease;
}

.answer-input.incorrect {
  border-color: var(--magenta);
  box-shadow: 0 0 0 4px var(--magenta-glow), 0 0 24px var(--magenta-glow);
  color: var(--magenta);
  animation: shake 0.4s ease;
}

.answer-hint {
  font-size: 13px;
  color: var(--text-tertiary);
  text-align: center;
  margin-top: 12px;
  font-weight: 600;
}

/* ============================
   FEEDBACK PANEL
   ============================ */
.feedback-panel {
  width: 100%;
  max-width: 580px;
  padding: 24px 28px;
  margin-bottom: 20px;
  border-radius: 10px;
  position: relative;
}

.feedback-panel.correct {
  background: rgba(0,255,159,0.05);
  border: 1.5px solid rgba(0,255,159,0.25);
}

.feedback-panel.incorrect {
  background: rgba(255,42,109,0.05);
  border: 1.5px solid rgba(255,42,109,0.25);
}

.feedback-header {
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 10px;
}

.feedback-panel.correct .feedback-header { color: var(--green-bright); }
.feedback-panel.incorrect .feedback-header { color: var(--magenta); }

.feedback-correct-answer {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 6px;
  line-height: 1.4;
}

.feedback-your-answer {
  font-size: 15px;
  color: var(--text-secondary);
  margin-top: 4px;
}

.feedback-your-answer .wrong { color: var(--magenta); text-decoration: line-through; }

/* ============================
   REVIEW CONTINUE BUTTON
   ============================ */
.review-btn-next {
  padding: 14px 40px;
  border-radius: 8px;
  font-family: var(--font-display);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  transition: all var(--transition);
  cursor: pointer;
  border: none;
}

.review-btn-next.correct {
  background: var(--green-bright);
  color: var(--bg-deep);
}
.review-btn-next.correct:hover { box-shadow: 0 0 24px var(--green-glow); transform: translateY(-1px); }

.review-btn-next.incorrect {
  background: var(--yellow);
  color: var(--bg-deep);
}
.review-btn-next.incorrect:hover { box-shadow: var(--shadow-yellow); transform: translateY(-1px); }

.review-btn-next.neutral {
  background: var(--cyan);
  color: var(--bg-deep);
}
.review-btn-next.neutral:hover { box-shadow: var(--shadow-cyan); transform: translateY(-1px); }

.answer-touch-btns {
  display: none;
}

.review-keyboard-hint {
  margin-top: 16px;
  font-size: 13px;
  color: var(--text-tertiary);
  display: flex;
  gap: 16px;
  font-weight: 600;
}

/* ============================
   MASTERY DOT SLAM
   ============================ */
@keyframes dot-slam-correct {
  0%   { transform: scale(1); }
  25%  { transform: scale(2.4); background: #00ff9f; box-shadow: 0 0 14px #00ff9f; }
  60%  { transform: scale(1.5); }
  100% { transform: scale(1); }
}
@keyframes dot-slam-incorrect {
  0%   { transform: scale(1); }
  25%  { transform: scale(2.4); background: #ff2a6d; box-shadow: 0 0 14px #ff2a6d; }
  60%  { transform: scale(1.5); }
  100% { transform: scale(1); }
}
.dot-slam-correct  { animation: dot-slam-correct  0.5s ease-out forwards; }
.dot-slam-incorrect { animation: dot-slam-incorrect 0.5s ease-out forwards; }


.speak-btn {
  background: none;
  border: none;
  cursor: pointer;
  font-size: 0.75em;
  opacity: 0.5;
  padding: 0 4px;
  vertical-align: middle;
  transition: opacity 0.15s;
}
.speak-btn:hover { opacity: 1; }

.kbd {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 24px; height: 22px;
  padding: 0 6px;
  background: var(--bg-elevated);
  border: 1px solid var(--border-cyan);
  border-radius: 4px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--cyan);
  margin: 0 2px;
}

/* ============================
   REVIEW COMPLETE
   ============================ */
.review-complete { text-align: center; animation: scaleIn 0.5s ease; }

.review-complete-icon { font-size: 68px; margin-bottom: 16px; }
.review-complete-title {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 900;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--cyan);
  text-shadow: 0 0 12px var(--cyan-glow);
  margin-bottom: 10px;
}
.review-complete-subtitle { font-size: 16px; color: var(--text-secondary); margin-bottom: 32px; line-height: 1.5; }

/* ============================
   TURKISH KEYBOARD — bigger, more usable
   ============================ */
.turkish-kb {
  display: flex;
  gap: 6px;
  padding: 10px 14px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 8px;
  margin-top: 8px;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
}

.turkish-kb-btn {
  min-width: 44px; height: 40px;
  border-radius: 6px;
  border: 1.5px solid var(--border-cyan);
  background: var(--bg-card);
  font-size: 18px;
  font-weight: 700;
  color: var(--cyan);
  display: flex; align-items: center; justify-content: center;
  transition: all var(--transition);
  cursor: pointer;
  padding: 0 10px;
}
.turkish-kb-btn:hover { background: var(--cyan-glow); border-color: var(--cyan); box-shadow: 0 0 10px var(--cyan-glow); transform: translateY(-2px); }
.turkish-kb-btn:active { transform: translateY(0); }

.turkish-kb-label {
  font-family: var(--font-display);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 1px;
  color: var(--text-tertiary);
  margin-right: 6px;
}

/* ============================
   CHARTS
   ============================ */
.chart-container {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 22px;
  margin-bottom: 20px;
}

.chart-title {
  font-family: var(--font-display);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--text-secondary);
  margin-bottom: 16px;
}

.bar-chart { display: flex; align-items: flex-end; gap: 8px; padding-top: 8px; }
.bar-chart-col { flex: 1; display: flex; flex-direction: column; align-items: center; gap: 5px; }
.bar-chart-bar-area { width: 100%; height: 80px; display: flex; align-items: flex-end; justify-content: center; }
.bar-chart-bar {
  width: 100%;
  max-width: 40px;
  border-radius: 4px 4px 0 0;
  background: linear-gradient(180deg, var(--cyan), rgba(0,240,255,0.25));
  min-height: 2px;
  transition: height 0.5s ease;
  box-shadow: 0 0 6px var(--cyan-glow);
}
.bar-chart-label { font-size: 12px; color: var(--text-tertiary); font-weight: 600; }
.bar-chart-value { font-family: var(--font-mono); font-size: 12px; color: var(--cyan); font-weight: 700; min-height: 16px; }

/* ============================
   MASTERY RING
   ============================ */
.mastery-container {
  display: flex;
  align-items: center;
  gap: 22px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 22px;
  margin-bottom: 20px;
}

.mastery-ring { position: relative; width: 96px; height: 96px; flex-shrink: 0; }
.mastery-ring svg { transform: rotate(-90deg); }
.mastery-ring-label {
  position: absolute; inset: 0;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 800;
  color: var(--text-primary);
}
.mastery-ring-sub { font-size: 10px; color: var(--text-tertiary); font-weight: 600; }

.mastery-legend { display: flex; flex-direction: column; gap: 10px; }
.mastery-legend-item { display: flex; align-items: center; gap: 10px; font-size: 14px; font-weight: 600; }
.mastery-legend-dot { width: 10px; height: 10px; border-radius: 3px; flex-shrink: 0; }
.mastery-legend-count { color: var(--text-secondary); margin-left: 4px; font-family: var(--font-mono); }

/* ============================
   EMPTY STATE
   ============================ */
.empty-state { text-align: center; padding: 60px 20px; }
.empty-state-icon { font-size: 52px; margin-bottom: 14px; }
.empty-state-title { font-family: var(--font-display); font-size: 16px; font-weight: 700; letter-spacing: 2px; text-transform: uppercase; margin-bottom: 10px; color: var(--text-primary); }
.empty-state-text { font-size: 15px; color: var(--text-secondary); margin-bottom: 28px; max-width: 380px; margin-left: auto; margin-right: auto; line-height: 1.6; }

/* ============================
   TOAST
   ============================ */
.toast-container { position: fixed; top: 20px; right: 20px; z-index: 2000; display: flex; flex-direction: column; gap: 8px; }
.toast {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 12px 16px;
  font-size: 14px;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 8px;
  animation: slideDown 0.3s ease;
  max-width: 360px;
  box-shadow: 0 8px 24px rgba(0,0,0,0.4);
}
.toast.success { border-left: 3px solid var(--green-bright); color: var(--green-bright); }
.toast.error { border-left: 3px solid var(--magenta); color: var(--magenta); }

/* ============================
   CONFETTI
   ============================ */
.confetti-piece {
  position: fixed; top: -10px;
  width: 10px; height: 10px;
  z-index: 3000;
  pointer-events: none;
  animation: confetti-fall 3s linear forwards;
}

/* ============================
   SEARCH
   ============================ */
.search-input-wrapper { position: relative; flex: 1; }
.search-input-wrapper .search-icon {
  position: absolute; left: 12px; top: 50%; transform: translateY(-50%);
  color: var(--text-tertiary); font-size: 14px; pointer-events: none;
}
.search-input {
  width: 100%;
  padding: 9px 12px 9px 34px;
  background: var(--bg-input);
  border: 1.5px solid var(--border);
  border-radius: 6px;
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 500;
  color: var(--text-primary);
  transition: all var(--transition);
}
.search-input:focus { border-color: var(--cyan); box-shadow: 0 0 0 3px var(--cyan-glow); }

/* ============================
   CHARTS ROW (dashboard)
   ============================ */
.charts-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-bottom: 24px;
}

/* ============================
   RESPONSIVE
   ============================ */
@media (max-width: 768px) {
  /* ── Sidebar & overlay ── */
  .sidebar { transform: translateX(-100%); }
  .sidebar.open { transform: translateX(0); }
  .sidebar-overlay {
    position: fixed; inset: 0;
    background: rgba(0,0,0,0.6);
    z-index: 99;
    backdrop-filter: blur(3px);
    -webkit-backdrop-filter: blur(3px);
  }

  /* ── Layout ── */
  .main-content { margin-left: 0 !important; padding: 0 16px 32px; }
  .mobile-header {
    display: flex; align-items: center; gap: 12px;
    padding: 14px 0 12px;
    margin-bottom: 16px;
    border-bottom: 1px solid var(--border);
    position: sticky; top: 0;
    background: var(--bg-deep);
    z-index: 50;
    margin-left: -16px; margin-right: -16px;
    padding-left: 16px; padding-right: 16px;
  }
  .mobile-menu-btn {
    font-size: 24px; color: var(--cyan);
    padding: 4px 8px; min-width: 44px; min-height: 44px;
    display: flex; align-items: center; justify-content: center;
  }

  /* ── Dashboard ── */
  .page-title { font-size: 18px; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 10px; margin-bottom: 16px; }
  .stat-card { padding: 14px 16px; }
  .stat-value { font-size: 24px; }
  .charts-row { grid-template-columns: 1fr; gap: 10px; }
  .decks-grid { grid-template-columns: 1fr; gap: 10px; }
  .deck-card { padding: 16px 18px; }
  .streak-banner { padding: 16px 18px; gap: 14px; }
  .streak-fire { font-size: 28px; }
  .streak-number { font-size: 22px; }

  /* ── Deck detail header ── */
  .deck-header { flex-direction: column; gap: 10px; margin-bottom: 16px; }
  .deck-header-actions {
    width: 100%;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 6px;
  }
  .deck-header-actions .btn { width: 100%; }
  .deck-toolbar { flex-wrap: wrap; gap: 8px; }

  /* ── Card list: always show actions, stack on wrap ── */
  .card-item { flex-wrap: wrap; padding: 12px 14px; gap: 6px; }
  .card-item-content { flex-basis: 100%; }
  .card-item-actions { opacity: 1; margin-left: auto; }
  .nav-reorder-btns { opacity: 1; }

  /* ── Review ── */
  .review-container { padding: 8px 0 20px; min-height: calc(100dvh - 70px); justify-content: flex-start; }
  .prompt-card { padding: 24px 18px; margin-bottom: 16px; }
  .prompt-text { font-size: 22px; }
  .answer-section { margin-bottom: 12px; }
  .answer-input { font-size: 18px; padding: 14px 16px; }
  .review-btn-next { width: 100%; max-width: 580px; padding: 16px; }
  .review-keyboard-hint { display: none; }
  .answer-touch-btns {
    display: flex;
    gap: 10px;
    width: 100%;
    max-width: 580px;
    margin-top: 10px;
  }
  .answer-touch-skip {
    flex: 1;
    padding: 14px;
    background: var(--bg-elevated);
    color: var(--text-secondary);
    border: 1px solid var(--border);
    font-size: 16px;
    font-weight: 600;
    border-radius: 10px;
  }
  .answer-touch-submit {
    flex: 2;
    padding: 14px;
    background: var(--cyan);
    color: var(--bg-deep);
    border: none;
    font-size: 16px;
    font-weight: 700;
    border-radius: 10px;
  }
  .feedback-panel { padding: 16px 18px; margin-bottom: 16px; }
  .feedback-correct-answer { font-size: 18px; }
  .turkish-kb { gap: 5px; padding: 8px 10px; }
  .turkish-kb-btn { min-width: 38px; height: 44px; font-size: 20px; }

  /* ── Modals: bottom sheet on mobile ── */
  .modal-overlay { align-items: flex-end; padding: 0; }
  .modal {
    border-radius: 16px 16px 0 0;
    padding: 24px 20px 32px;
    max-height: 92dvh;
    animation: slideUp 0.3s ease;
  }
  .modal::before { border-radius: 16px 16px 0 0; }
  .form-row { flex-direction: column; gap: 0; }

  /* ── Toast: bottom of screen ── */
  .toast-container { top: auto; bottom: 20px; left: 16px; right: 16px; }
  .toast { max-width: 100%; }
}

@media (min-width: 769px) {
  .mobile-header { display: none; }
}

/* ============================
   SCROLLBAR
   ============================ */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border-cyan); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--cyan-dim); }

/* ============================
   DIRECTION TOGGLE
   ============================ */
.direction-toggle {
  display: flex;
  margin-top: 8px;
  border: 1.5px solid var(--border-cyan);
  border-radius: 6px;
  overflow: hidden;
}

.dir-btn {
  flex: 1;
  padding: 9px 16px;
  font-family: var(--font-display);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--text-tertiary);
  background: transparent;
  border: none;
  cursor: pointer;
  transition: all var(--transition);
}

.dir-btn + .dir-btn { border-left: 1px solid var(--border-cyan); }
.dir-btn.active { background: var(--cyan); color: var(--bg-deep); }
.dir-btn:not(.active):hover { background: var(--cyan-glow); color: var(--cyan); }

/* ============================
   FORM ROW
   ============================ */
.form-row {
  display: flex;
  gap: 12px;
}
.form-row .form-group { margin-bottom: 0; }

.form-select {
  width: 100%;
  padding: 10px 14px;
  background: var(--bg-input);
  border: 1.5px solid var(--border-cyan);
  border-radius: 6px;
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 500;
  color: var(--text-primary);
  cursor: pointer;
  transition: all var(--transition);
  appearance: none;
}
.form-select:focus {
  outline: none;
  border-color: var(--cyan);
  box-shadow: 0 0 0 3px var(--cyan-glow);
}
.form-select option { background: var(--bg-card); }

/* ============================
   WORD TYPE BADGE (card list)
   ============================ */
.card-type-badge {
  font-family: var(--font-display);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.5px;
  padding: 3px 8px;
  border-radius: 4px;
  white-space: nowrap;
  flex-shrink: 0;
  background: rgba(160,160,255,0.12);
  color: #a0a0ff;
  border: 1px solid rgba(160,160,255,0.25);
}

/* ============================
   LANGUAGE BADGE (card list)
   ============================ */
.card-lang-badge {
  font-family: var(--font-display);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.5px;
  padding: 3px 8px;
  border-radius: 4px;
  white-space: nowrap;
  flex-shrink: 0;
}
.card-lang-badge.to-tr { background: var(--cyan-glow); color: var(--cyan); border: 1px solid var(--border-cyan); }
.card-lang-badge.to-en { background: var(--yellow-glow); color: var(--yellow-soft); border: 1px solid var(--border-yellow); }

/* ============================
   REVIEW MODE BADGE
   ============================ */
.review-mode-badge {
  display: inline-flex;
  align-items: center;
  font-family: var(--font-display);
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  padding: 2px 8px;
  border-radius: 4px;
  vertical-align: middle;
  margin-left: 4px;
}
.review-mode-badge.due { background: var(--magenta-glow); color: var(--magenta); border: 1px solid rgba(255,42,109,0.25); }
.review-mode-badge.practice { background: var(--cyan-glow); color: var(--cyan); border: 1px solid var(--border-cyan); }

.spinner {
  width: 22px; height: 22px;
  border: 2.5px solid var(--border);
  border-top-color: var(--cyan);
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
}