@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@400;500;600;700;800&display=swap');

:root {
  --blue: #3B82F6;
  --blue-dark: #2563EB;
  --blue-light: #EFF6FF;
  --blue-mid: #DBEAFE;
  --dark: #1F2937;
  --mid: #4B5563;
  --light: #9CA3AF;
  --bg: #F8FAFC;
  --white: #FFFFFF;
  --border: #E5E7EB;
  --green: #10B981;
  --green-light: #ECFDF5;
  --green-border: #A7F3D0;
  --red: #EF4444;
  --red-light: #FEF2F2;
  --amber: #F59E0B;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.07);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.07);
  --shadow-lg: 0 10px 40px rgba(0,0,0,0.09);
  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 20px;
}

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

body {
  font-family: 'Plus Jakarta Sans', sans-serif;
  background: var(--bg);
  color: var(--dark);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* NAVBAR */
.dw-nav {
  background: white;
  border-bottom: 1px solid var(--border);
  padding: 0 28px;
  position: sticky;
  top: 0;
  z-index: 100;
}

.dw-nav-inner {
  max-width: 1140px;
  margin: 0 auto;
  height: 58px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.dw-logo {
  display: flex;
  align-items: center;
  gap: 9px;
  text-decoration: none;
  flex-shrink: 0;
}

.dw-logo-icon {
  width: 32px;
  height: 32px;
  background: var(--blue);
  border-radius: 9px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 16px;
  font-weight: 800;
}

.dw-logo-text {
  font-size: 17px;
  font-weight: 800;
  color: var(--dark);
  letter-spacing: -0.3px;
}

.dw-logo-text span { color: var(--blue); }

.dw-nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
  list-style: none;
  flex: 1;
  justify-content: center;
}

.dw-nav-links a {
  text-decoration: none;
  color: var(--mid);
  font-size: 14px;
  font-weight: 500;
  transition: color 0.2s;
}

.dw-nav-links a:hover { color: var(--dark); }

.dw-nav-right {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

/* BUTTONS */
.dw-btn {
  padding: 9px 18px;
  font-size: 13.5px;
  font-weight: 700;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-family: inherit;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: all 0.2s;
  border: none;
  white-space: nowrap;
}

.dw-btn-primary {
  color: white;
  background: var(--blue);
  box-shadow: 0 2px 8px rgba(59,130,246,0.25);
}

.dw-btn-primary:hover {
  background: var(--blue-dark);
  transform: translateY(-1px);
}

.dw-btn-secondary {
  color: var(--blue);
  background: white;
  border: 1.5px solid var(--blue);
}

.dw-btn-secondary:hover { background: var(--blue-light); }

.dw-btn-ghost {
  color: var(--mid);
  background: none;
  border: none;
}

.dw-btn-ghost:hover {
  background: var(--bg);
  color: var(--dark);
}

/* CARDS */
.dw-card {
  background: white;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  padding: 24px;
}

/* CHIPS */
.dw-chip {
  display: inline-flex;
  background: var(--blue-light);
  color: var(--blue);
  font-size: 11px;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: 50px;
  letter-spacing: 0.4px;
}

.dw-chip-green {
  background: var(--green-light);
  color: var(--green);
}

/* SECTION LABEL */
.dw-label {
  font-size: 10.5px;
  font-weight: 700;
  color: var(--blue);
  letter-spacing: 1.5px;
  text-transform: uppercase;
  margin-bottom: 14px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.dw-label::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border);
}

/* INFO BOXES */
.dw-info {
  background: var(--blue-light);
  border: 1px solid var(--blue-mid);
  border-radius: var(--radius-sm);
  padding: 13px 16px;
  font-size: 13px;
  color: #1D4ED8;
  line-height: 1.6;
  display: flex;
  gap: 10px;
}

.dw-success {
  background: var(--green-light);
  border: 1px solid var(--green-border);
  border-radius: var(--radius-sm);
  padding: 13px 16px;
  font-size: 13px;
  color: #065F46;
  line-height: 1.6;
  display: flex;
  gap: 10px;
}

.dw-warn {
  background: #FFFBEB;
  border: 1px solid #FDE68A;
  border-radius: var(--radius-sm);
  padding: 13px 16px;
  font-size: 13px;
  color: #92400E;
  line-height: 1.6;
  display: flex;
  gap: 10px;
}

.dw-danger {
  background: var(--red-light);
  border: 1px solid #FECACA;
  border-radius: var(--radius-sm);
  padding: 13px 16px;
  font-size: 13px;
  color: #991B1B;
  line-height: 1.6;
  display: flex;
  gap: 10px;
}

/* EXAMPLE BOX */
.dw-example {
  background: var(--bg);
  border-left: 3px solid var(--blue);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  padding: 13px 16px;
  margin: 12px 0;
}

/* QUIZ ANSWERS */
.dw-option {
  padding: 13px 16px;
  border-radius: var(--radius-md);
  font-size: 14px;
  font-weight: 600;
  border: 2px solid var(--border);
  background: white;
  color: var(--dark);
  cursor: pointer;
  transition: all 0.18s;
  text-align: center;
  font-family: inherit;
}

.dw-option:hover { border-color: var(--blue); background: var(--blue-light); color: var(--blue); }
.dw-option.selected { border-color: var(--blue); background: var(--blue-light); color: var(--blue); }
.dw-option.correct { border-color: var(--green); background: var(--green-light); color: var(--green); }
.dw-option.wrong { border-color: var(--red); background: var(--red-light); color: var(--red); }

/* PROGRESS BAR */
.dw-progress-bg {
  background: var(--bg);
  border-radius: 50px;
  height: 7px;
  overflow: hidden;
}

.dw-progress-fill {
  background: var(--blue);
  height: 100%;
  border-radius: 50px;
  transition: width 0.4s;
}

/* BACK BUTTON */
.dw-back {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  background: white;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 13px;
  font-weight: 600;
  color: var(--mid);
  text-decoration: none;
  cursor: pointer;
  font-family: inherit;
  transition: all 0.2s;
  margin-bottom: 20px;
}

.dw-back:hover { border-color: var(--blue); color: var(--blue); }

/* FORM INPUTS */
.dw-input {
  width: 100%;
  padding: 11px 14px;
  font-size: 14px;
  font-family: inherit;
  color: var(--dark);
  background: white;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.dw-input:focus { border-color: var(--blue); box-shadow: 0 0 0 3px rgba(59,130,246,0.08); }
.dw-input::placeholder { color: var(--light); }
.dw-input.error { border-color: var(--red); box-shadow: 0 0 0 3px rgba(239,68,68,0.08); }

.dw-select {
  width: 100%;
  padding: 11px 14px;
  font-size: 14px;
  font-family: inherit;
  color: var(--dark);
  background: white;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  outline: none;
  cursor: pointer;
  -webkit-appearance: none;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%239CA3AF' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  padding-right: 40px;
  transition: border-color 0.2s;
}

.dw-select:focus { border-color: var(--blue); box-shadow: 0 0 0 3px rgba(59,130,246,0.08); }
.dw-select.error { border-color: var(--red); }

.dw-label-text {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--dark);
  margin-bottom: 6px;
}

/* MOBILE */
@media (max-width: 768px) {
  .dw-nav { padding: 0 16px; }
  .dw-nav-links { display: none; }
  .dw-nav-inner { gap: 12px; }
}

/* ── NEXT STEP BAR (Task 2) ── */
.dw-next-step-bar {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: white;
  border-top: 1px solid var(--border);
  padding: 14px 28px;
  z-index: 50;
  box-shadow: 0 -4px 16px rgba(0,0,0,0.06);
}
.dw-next-inner {
  max-width: 1140px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.dw-next-label {
  font-size: 11px;
  font-weight: 700;
  color: var(--green);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 3px;
}
.dw-next-title {
  font-size: 15px;
  font-weight: 700;
  color: var(--dark);
}
.dw-next-actions {
  display: flex;
  gap: 10px;
  align-items: center;
  flex-shrink: 0;
}
@media (max-width: 768px) {
  .dw-next-inner { flex-direction: column; text-align: center; }
  .dw-next-actions { width: 100%; justify-content: center; flex-wrap: wrap; }
}

/* ── PROGRESS BANNER (Task 3) ── */
.dw-progress-banner {
  background: white;
  border-bottom: 1px solid var(--border);
  padding: 16px 28px;
}
.dw-progress-banner-inner {
  max-width: 1140px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 32px;
  flex-wrap: wrap;
}
.dw-pb-item { text-align: center; }
.dw-pb-number {
  font-size: 24px;
  font-weight: 800;
  color: var(--blue);
  line-height: 1;
}
.dw-pb-label {
  font-size: 11.5px;
  color: var(--light);
  font-weight: 500;
  margin-top: 3px;
}
.dw-pb-divider {
  width: 1px;
  height: 36px;
  background: var(--border);
}
.dw-pb-bar-wrap { flex: 1; min-width: 200px; }
.dw-pb-bar-label {
  font-size: 12px;
  font-weight: 600;
  color: var(--mid);
  margin-bottom: 6px;
}
.dw-pb-pct {
  font-size: 11.5px;
  color: var(--light);
  margin-top: 5px;
}
@media (max-width: 768px) {
  .dw-progress-banner-inner { gap: 16px; justify-content: center; }
  .dw-pb-divider { display: none; }
  .dw-pb-bar-wrap { width: 100%; }
}

/* ── WRONG ANSWER FEEDBACK (Task 4) ── */
.dw-feedback-wrong {
  background: #FFF7ED;
  border: 1px solid #FED7AA;
  border-left: 4px solid #F97316;
  border-radius: var(--radius-sm);
  padding: 16px;
  margin-top: 14px;
}
.dw-feedback-wrong-title {
  font-size: 14px;
  font-weight: 700;
  color: #C2410C;
  margin-bottom: 6px;
  display: flex;
  align-items: center;
  gap: 7px;
}
.dw-feedback-wrong-body {
  font-size: 13px;
  color: #7C2D12;
  line-height: 1.7;
  margin-bottom: 10px;
}
.dw-feedback-correct-answer {
  background: var(--green-light);
  border: 1px solid var(--green-border);
  border-radius: 8px;
  padding: 10px 14px;
  font-size: 13px;
  font-weight: 600;
  color: #065F46;
  margin-bottom: 10px;
}
.dw-encourage {
  font-size: 12.5px;
  color: #92400E;
  font-style: italic;
}

/* ── RECOMMENDATIONS (Task 5) ── */
.dw-recommendations {
  margin-top: 20px;
  padding: 20px;
  background: white;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
}
.dw-rec-title {
  font-size: 15px;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 14px;
}
.dw-rec-grid {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.dw-rec-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 16px;
  background: var(--bg);
  border-radius: var(--radius-sm);
  border-left: 3px solid var(--blue);
  gap: 12px;
}
.dw-rec-name {
  font-size: 13.5px;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 3px;
}
.dw-rec-desc {
  font-size: 12.5px;
  color: var(--mid);
}
.dw-rec-link {
  font-size: 13px;
  font-weight: 700;
  color: var(--blue);
  text-decoration: none;
  white-space: nowrap;
  flex-shrink: 0;
}
.dw-rec-link:hover { text-decoration: underline; }

/* ─── MINI TEST SHARED ─── */
.mt-quick-btn {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 12px;
  font-weight: 700;
  color: var(--blue);
  background: var(--blue-light);
  border: 1.5px solid var(--blue-mid);
  border-radius: 8px;
  padding: 4px 10px;
  text-decoration: none;
  transition: all .18s;
  white-space: nowrap;
}
.mt-quick-btn:hover {
  background: var(--blue-mid);
  border-color: var(--blue);
}
.mt-quick-btn.a2 { color: #7C3AED; background: #F5F3FF; border-color: #DDD6FE; }
.mt-quick-btn.a2:hover { background: #EDE9FE; }
.mt-quick-btn.b1 { color: #059669; background: #ECFDF5; border-color: #A7F3D0; }
.mt-quick-btn.b1:hover { background: #D1FAE5; }