:root{
  --bg:#fbfbfd;
  --text:#111827;
  --muted:#6b7280;
  --accent:#0f3e75;

  --surface:#ffffff;
  --radius-lg:18px;
  --radius-md:12px;
  --shadow-soft:0 10px 30px rgba(15,23,42,0.06);

  --p1:#E6F2FF;
  --p2:#FFEFE9;
  --p3:#E9FFEF;
  --p4:#FFEAF3;
  --p5:#FFF4E6;
  --p6:#E8F6FF;
  --p7:#F4E9FF;
  --p8:#FFF9E6;

    --card1:#e0f2fe;
    --card2:#ede9fe;
    --card3:#fef3c7;
    --card4:#dcfce7;
    --card5:#fee2e2;

    --radius:14px;
    --muted:#64748b;
    --accent:#2563eb;
}

*{box-sizing:border-box;margin:0;padding:0}
html,body{height:100%}
body{
  font-family:"Poppins",system-ui,-apple-system,"Segoe UI",Roboto,Arial;
  background:linear-gradient(180deg,var(--bg),#ffffff);
  color:var(--text);
  -webkit-font-smoothing:antialiased;
}

a{text-decoration:none;color:inherit}

/* outer shell */
.shell{
  max-width:1120px;
  margin:0 auto;
  padding:18px 16px 40px;
  background-color: #fff;
}

 /* TOPBAR */
.topbar {
      position: sticky;
      top: 0;
      z-index: 20;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 12px;
      padding: 10px 14px;
      margin-bottom: 16px;
      background: rgba(255, 255, 255, 0.9);
      backdrop-filter: blur(12px);
      border-radius: 999px;
      box-shadow: 0 10px 30px rgba(15, 23, 42, 0.08);
    }

    .topbar-left {
      display: flex;
      align-items: center;
      gap: 10px;
    }

    .logo-circle {
      width: 34px;
      height: 34px;
      border-radius: 999px;
      background: linear-gradient(135deg, #2b6cb0, #667eea);
      display: flex;
      align-items: center;
      justify-content: center;
      color: #fff;
      font-weight: 700;
      font-size: 18px;
      box-shadow: 0 10px 20px rgba(37, 99, 235, 0.35);
    }

    .brand-block {
      display: flex;
      flex-direction: column;
      gap: 2px;
    }

    .brand {
      letter-spacing: 0.12em;
      font-size: 11px;
      font-weight: 700;
      color: #1e293b;
    }

    .brand-tag {
      font-size: 11px;
      color: #64748b;
      white-space: nowrap;
    }

    .topbar-right {
      display: flex;
      align-items: center;
      gap: 10px;
    }

    .top-nav {
      display: flex;
      align-items: center;
      gap: 14px;
      font-size: 13px;
    }

    .top-nav a {
      text-decoration: none;
      color: #4b5563;
      padding: 4px 10px;
      border-radius: 999px;
      transition: background 0.2s, color 0.2s, transform 0.1s;
    }

    .top-nav a:hover {
      background: #e5edff;
      color: #1d4ed8;
      transform: translateY(-1px);
    }

    .stats-pill {
      font-size: 11px;
      padding: 4px 10px;
      border-radius: 999px;
      background: #edf2ff;
      color: #1d4ed8;
      display: flex;
      align-items: center;
      gap: 6px;
    }

    .stats-dot {
      width: 6px;
      height: 6px;
      border-radius: 999px;
      background: #10b981;
    }

    .lang-toggle {
      border-radius: 999px;
      border: 1px solid #cbd5f5;
      padding: 4px 10px;
      font-size: 11px;
      background: #f1f5f9;
      cursor: pointer;
      color: #1f2933;
      display: flex;
      align-items: center;
      gap: 6px;
    }

    .lang-toggle span {
      padding: 2px 6px;
      border-radius: 999px;
    }

    .lang-toggle span.active {
      background: #2b6cb0;
      color: #fff;
    }

    /* Mobile hamburger */
    .hamburger {
      display: none;
      width: 32px;
      height: 32px;
      border-radius: 999px;
      border: none;
      background: #e5edff;
      align-items: center;
      justify-content: center;
      flex-direction: column;
      gap: 4px;
      cursor: pointer;
      padding: 0;
    }

    .hamburger span {
      width: 16px;
      height: 2px;
      background: #1f2937;
      border-radius: 999px;
    }

    .nav-mobile {
      display: none;
      flex-direction: column;
      gap: 6px;
      padding: 10px 12px 12px;
      margin: 10px auto 0;
      max-width: 1120px;
      background: rgba(248, 250, 252, 0.95);
      border-radius: 16px;
      box-shadow: 0 16px 35px rgba(15, 23, 42, 0.12);
    }

    .nav-mobile a {
      font-size: 13px;
      text-decoration: none;
      padding: 8px 10px;
      border-radius: 10px;
      color: #4b5563;
    }

    .nav-mobile a:hover {
      background: #e5edff;
      color: #1d4ed8;
    }

/* HERO */
.hero{
  display:flex;
  justify-content:space-between;
  gap:22px;
  margin-bottom:26px;
  padding:20px 20px 22px;
  border-radius:var(--radius-lg);
  background:radial-gradient(circle at top left,#e0edff,#ffffff);
  box-shadow:var(--shadow-soft);
}
.hero h1{
  font-size:32px;
  line-height:1.2;
  margin-bottom:8px;
}
.hero p{
  font-size:14px;
  color:var(--muted);
}

.hero-pills{
  margin-top:14px;
  display:flex;
  flex-wrap:wrap;
  gap:6px;
}
.hero-pills span{
  background:#e5edff;
  color:#1e293b;
  font-size:11px;
  padding:4px 8px;
  border-radius:999px;
}

.hero-card{
  min-width:250px;
  max-width:280px;
  background:var(--surface);
  border-radius:16px;
  padding:16px 16px 18px;
  box-shadow:0 10px 30px rgba(15,23,42,0.07);
}
.hero-card h3{
  font-size:16px;
  margin-bottom:10px;
}
.hero-card ul{
  list-style:none;
  font-size:13px;
  color:var(--muted);
  margin-bottom:14px;
}
.hero-card li{margin-bottom:4px}

/* generic buttons */
.btn-primary{
  background:linear-gradient(135deg,#2563eb,#1d4ed8);
  color:#fff;
  border:none;
  border-radius:999px;
  font-size:13px;
  font-weight:600;
  padding:8px 18px;
  cursor:pointer;
}
.btn-primary:hover{filter:brightness(1.05)}

.btn-ghost{
  background:#eef2ff;
  color:#1e293b;
  border:none;
  border-radius:999px;
  font-size:13px;
  font-weight:500;
  padding:8px 16px;
  cursor:pointer;
}
.btn-ghost:hover{background:#e0e7ff}

.btn-full{width:100%;text-align:center}

/* sections */
.section{margin-top:26px}
.section-head h2{
  font-size:22px;
  margin-bottom:4px;
}
.section-head p{
  font-size:13px;
  color:var(--muted);
}

/* grid cards */
.grid{
  margin-top:16px;
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:16px;
}
.card{
  padding:18px 18px;
  border-radius:var(--radius-md);
  display:flex;
  justify-content:space-between;
  align-items:flex-start;
  box-shadow:var(--shadow-soft);
  cursor:pointer;
  transition:transform .2s ease, box-shadow .2s ease;
}
.card:hover{
  transform:translateY(-4px);
  box-shadow:0 16px 34px rgba(15,23,42,0.12);
}
.card h3{
  font-size:16px;
  margin-bottom:4px;
}
.card p{
  font-size:12px;
  color:var(--muted);
}
.chev{
  font-size:22px;
  line-height:1;
  opacity:.7;
}


/* MCQ section */
.mcq-layout{
  margin-top:16px;
  display:grid;
  grid-template-columns:2fr 1fr;
  gap:18px;
}
.mcq-panel{
  background:var(--surface);
  border-radius:var(--radius-lg);
  padding:18px 18px 16px;
  box-shadow:var(--shadow-soft);
}
.mcq-meta{
  display:flex;
  gap:8px;
  margin-bottom:10px;
}
.chip{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border-radius:999px;
  padding:3px 10px;
  font-size:11px;
  background:#e5e7eb;
  color:#374151;
}
.chip-green{
  background:#dcfce7;
  color:#166534;
}
.chip-outline{
  background:transparent;
  border:1px solid #d1d5db;
}

.mcq-question{
  display:flex;
  gap:8px;
  font-size:14px;
  margin-bottom:10px;
}
.mcq-number{
  font-weight:600;
  color:var(--accent);
}

.mcq-options{
  display:flex;
  flex-direction:column;
  gap:6px;
  margin-bottom:12px;
}
.option{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  padding:6px 8px;
  border-radius:10px;
  background:#f9fafb;
}
.option input{accent-color:#2563eb}

.mcq-explainer{
  margin-top:10px;
  font-size:12px;
  color:#047857;
  background:#ecfdf3;
  border-radius:10px;
  padding:8px 10px;
}
.mcq-note{display:block;color:#22c55e;font-size:11px;margin-top:2px}

.mcq-side{
  background:var(--surface);
  border-radius:var(--radius-lg);
  padding:16px 16px 14px;
  box-shadow:var(--shadow-soft);
}
.mcq-side h4{
  font-size:15px;
  margin-bottom:8px;
}
.list-compact{
  list-style:none;
  font-size:12px;
  color:var(--muted);
}
.list-compact li{margin-bottom:6px}

/* ======================= */
/*   POSTS SECTION STYLE   */
/* ======================= */

.posts-section {
  margin-top: 40px;
  padding: 10px 0 40px;
}

.posts-section .section-head {
  text-align: center;
  margin-bottom: 20px;
}

.posts-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

@media(max-width:900px){
  .posts-grid { grid-template-columns: repeat(2, 1fr); }
}
@media(max-width:600px){
  .posts-grid { grid-template-columns: 1fr; }
}

.post-card {
  background: var(--card);
  border-radius: 14px;
  overflow: hidden;
  box-shadow: 0 6px 14px rgba(0,0,0,0.08);
  transition: transform .25s ease;
}

.post-card:hover {
  transform: translateY(-4px);
}

.post-img {
  width: 100%;
  height: 160px;
  object-fit: cover;
}

.post-body {
  padding: 14px;
}

.chip-post {
  background: #e0e7ff;
  color: #1e40af;
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
  margin-bottom: 6px;
  display: inline-block;
}

.post-title {
  font-size: 17px;
  font-weight: 600;
  margin: 6px 0;
}

.post-desc {
  font-size: 14px;
  color: var(--muted);
  margin-bottom: 10px;
}

.post-btn {
  display: inline-block;
  padding: 6px 10px;
  font-size: 14px;
  font-weight: 600;
  color: var(--accent);
  text-decoration: none;
}

.post-btn:hover {
  text-decoration: underline;
}

.posts-more {
  margin-top: 20px;
  text-align: center;
}

.btn-posts-more {
  background: var(--accent);
  padding: 10px 18px;
  border-radius: 10px;
  color: white;
  font-weight: 600;
  text-decoration: none;
}

.btn-posts-more:hover {
  opacity: 0.9;
}

/* history page layout */
.breadcrumb{
  margin-top:6px;
  font-size:12px;
  color:var(--muted);
  display:flex;
  align-items:center;
  gap:4px;
}
.breadcrumb a{color:var(--accent)}

.history-layout{
  margin-top:16px;
  display:grid;
  grid-template-columns:2fr 1fr;
  gap:18px;
}
.history-grid .card{
  min-height:85px;
}
.history-side{
  background:var(--surface);
  border-radius:var(--radius-lg);
  padding:16px 16px 14px;
  box-shadow:var(--shadow-soft);
}
.history-side h4{
  font-size:15px;
  margin-bottom:6px;
}

/* footer */
.footer{
  margin-top:32px;
  padding-top:14px;
  border-top:1px solid #e5e7eb;
  display:flex;
  justify-content:space-between;
  flex-wrap:wrap;
  gap:8px;
  font-size:12px;
  color:var(--muted);
}
.footer-links{
  display:flex;
  gap:12px;
}

/* RESPONSIVE */
@media (max-width:900px){
  .hero{
    flex-direction:column;
  }
  .hero-card{
    max-width:none;
  }
  .mcq-layout,
  .posts-layout,
  .history-layout{
    grid-template-columns:1fr;
  }
}

@media (max-width:720px){
  .nav-desktop{display:none;}
  .hamburger{display:flex;}
}

@media (max-width:640px){
  .shell{padding-inline:12px}
  .hero{padding:16px}
  .grid{
    grid-template-columns:1fr;
  }
  .section-head h2{font-size:20px}
  .hero h1{font-size:26px}
}

.mcq-box {
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-top: 10px;
}

.mcq-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: #f5f8ff;
  padding: 18px 20px;
  border-radius: 14px;
  text-decoration: none;
  color: #1b1f23;
  border: 1px solid #e4eaff;
  transition: 0.2s;
}

.mcq-item:hover {
  background: #e8f0ff;
  transform: translateY(-2px);
}

.mcq-left h3 {
  margin: 0;
  font-size: 18px;
  font-weight: 600;
}

.mcq-left p {
  margin: 4px 0 0;
  font-size: 14px;
  color: #556;
}

.mcq-badge {
  padding: 8px 16px;
  background: #2563eb;
  color: white;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 600;
}
.quiz-wrap {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
  margin-top: 14px;
}

.quiz-card {
  background: white;
  border-radius: 14px;
  padding: 18px;
  border: 1px solid #e8e8e8;
  text-decoration: none;
  color: #202020;
  box-shadow: 0 5px 12px rgba(0,0,0,0.06);
  position: relative;
  transition: 0.2s;
}

.quiz-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.10);
}

.quiz-card h3 {
  margin: 0;
  font-weight: 600;
}

.quiz-card p {
  margin: 6px 0 0;
  font-size: 14px;
  color: #666;
}

.quiz-go {
  position: absolute;
  right: 18px;
  top: 18px;
  font-size: 24px;
  color: #2563eb;
  font-weight: bold;
}
    /* LAYOUT */
    .layout {
      display: grid;
      grid-template-columns: minmax(0, 2.5fr) minmax(0, 1.2fr);
      gap: 18px;
      margin-top: 12px;
    }

    @media (max-width: 880px) {
      .top-nav { display: none; }
      .hamburger { display: flex; }
      .brand-tag { display: none; }
      .layout {
        grid-template-columns: minmax(0, 1fr);
      }
    }

    /* LEFT: QUIZ CARD */
    .quiz-card {
      background: rgba(255, 255, 255, 0.9);
      box-shadow: var(--shadow-soft);
      border-radius: 24px;
      padding: 18px 18px 16px;
      display: flex;
      flex-direction: column;
      gap: 14px;
    }

    .quiz-headline {
      display: flex;
      flex-wrap: wrap;
      justify-content: space-between;
      gap: 10px;
      align-items: center;
    }

    .quiz-title-block h1 {
      font-size: 18px;
      font-weight: 600;
    }

    .quiz-title-block p {
      font-size: 11px;
      color: var(--text-soft);
      margin-top: 2px;
    }

    .quiz-meta {
      display: flex;
      align-items: center;
      gap: 10px;
      flex-wrap: wrap;
      justify-content: flex-end;
    }

    .pill {
      font-size: 11px;
      padding: 4px 9px;
      border-radius: 999px;
      background: #edf2ff;
      color: #1d4ed8;
      display: inline-flex;
      align-items: center;
      gap: 6px;
      white-space: nowrap;
    }

    .pill strong { font-weight: 600; }

    .timer {
      font-size: 12px;
      padding: 4px 9px;
      border-radius: 999px;
      background: #111827;
      color: #f9fafb;
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }

    .timer-dot {
      width: 7px;
      height: 7px;
      border-radius: 999px;
      background: #22c55e;
      box-shadow: 0 0 0 5px rgba(34, 197, 94, 0.12);
    }

    /* Progress bar */
    .progress-wrap {
      margin-top: 4px;
    }

    .progress-line {
      width: 100%;
      height: 7px;
      border-radius: 999px;
      background: #edf2f7;
      overflow: hidden;
    }

    .progress-fill {
      height: 100%;
      width: 0;
      border-radius: inherit;
      background: linear-gradient(90deg, #22c55e, #38bdf8);
      transition: width 0.25s ease-out;
    }

    .progress-text {
      margin-top: 4px;
      font-size: 11px;
      color: #6b7280;
      display: flex;
      justify-content: space-between;
    }

    /* QUESTION AREA */
    .q-meta-row {
      display: flex;
      justify-content: space-between;
      align-items: center;
      margin-top: 4px;
      font-size: 12px;
      color: #6b7280;
    }

    .q-number-pill {
      display: none;
      align-items: center;
      gap: 6px;
      background: #fef3c7;
      color: #92400e;
      padding: 4px 10px;
      border-radius: 999px;
      font-size: 11px;
    }

    .q-number-pill span {
      width: 18px;
      height: 18px;
      border-radius: 999px;
      background: #f59e0b;
      color: #000000;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      font-size: 11px;
      font-weight: 600;
    }

    .question-text {
      margin-top: 10px;
      font-size: 18px;
      line-height: 1.5;
      font-weight: 500;
      color: #111827;
    }

    /* OPTIONS */
    .options-list {
      list-style: none;
      margin-top: 12px;
      display: flex;
      flex-direction: column;
      gap: 8px;
    }

  .options-list{list-style:none;padding:0;margin:12px 0;display:flex;flex-direction:column;gap:8px}
    .option-item{display:flex;align-items:center;gap:12px;padding:10px;border-radius:10px;border:1px solid #e6eefb;cursor:pointer}
    .option-item.selected{background:#eef2ff;border-color:#60a5fa}

    .option-item.correct {
      border-color: #16a34a;
      background: #ecfdf3;
    }

    .option-item.wrong {
      border-color: #dc2626;
      background: #fef2f2;
    }

    .option-letter {
      width: 24px;
      height: 24px;
      border-radius: 999px;
      border: 1px solid #c4c9f5;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 12px;
      background: #e5edff;
      color: #1d4ed8;
      flex-shrink: 0;
      font-weight: 600;
    }

    .option-text {
      flex: 1;
      font-size: 13px;
      color: #111827;
    }

    .option-input {
      position: absolute;
      opacity: 0;
      pointer-events: none;
    }

    /* FOOT ACTIONS */
    .quiz-footer {
      margin-top: 14px;
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      justify-content: space-between;
      gap: 10px;
      font-size: 12px;
    }

    .btn-row {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
    }

    .btn {
      border: none;
      border-radius: 999px;
      padding: 7px 14px;
      font-size: 12px;
      font-weight: 500;
      cursor: pointer;
      display: inline-flex;
      align-items: center;
      gap: 6px;
      transition: background 0.18s, transform 0.08s, box-shadow 0.18s;
    }

    .btn:active {
      transform: translateY(1px) scale(0.98);
      box-shadow: none;
    }

    .btn-primary {
      background: linear-gradient(135deg, #2563eb, #7c3aed);
      color: #f9fafb;
      box-shadow: 0 10px 22px rgba(59, 130, 246, 0.35);
    }

    .btn-primary:hover {
      filter: brightness(1.04);
    }

    .btn-ghost {
      background: #e5edff;
      color: #1d4ed8;
    }

    .btn-soft {
      background: #f3f4f6;
      color: #374151;
    }

    .btn-danger {
      background: #fee2e2;
      color: #b91c1c;
    }

    /* RIGHT: INFO PANEL */
    .info-card {
      background: rgba(15, 23, 42, 0.96);
      color: #e5e7eb;
      border-radius: 24px;
      padding: 16px 16px 14px;
      box-shadow: 0 16px 42px rgba(15, 23, 42, 0.75);
      display: flex;
      flex-direction: column;
      gap: 10px;
      position: sticky;
      top: 72px;
    }

    .chip-group {
      display: flex;
      flex-wrap: wrap;
      gap: 6px;
      font-size: 10px;
    }

    .chip {
      border-radius: 999px;
      padding: 3px 8px;
      border: 1px solid rgba(148, 163, 184, 0.7);
      display: inline-flex;
      align-items: center;
      gap: 4px;
    }

    .info-card h2 {
      font-size: 14px;
      font-weight: 600;
    }

    .info-card p {
      font-size: 11px;
      color: #9ca3af;
    }

    .stat-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(90px, 1fr));
      gap: 8px;
      margin-top: 4px;
    }

    .stat-box {
      border-radius: 16px;
      padding: 8px;
      background: #020617;
      border: 1px solid rgba(148, 163, 184, 0.5);
    }

    .stat-label {
      font-size: 11px;
      color: #9ca3af;
      margin-bottom: 2px;
    }

    .stat-value {
      font-size: 14px;
      font-weight: 600;
    }

    .legend {
      display: flex;
      flex-wrap: wrap;
      gap: 6px;
      margin-top: 5px;
      font-size: 10px;
      color: #9ca3af;
    }

    .lg-dot {
      width: 7px;
      height: 7px;
      border-radius: 999px;
      margin-right: 4px;
    }

    .q-nav-grid {
      margin-top: 6px;
      display: grid;
      grid-template-columns: repeat(8, 1fr);
      gap: 4px;
      max-height: 180px;
      overflow: auto;
      padding-right: 4px;
    }

    .q-nav-btn {
      border-radius: 999px;
      border: none;
      font-size: 10px;
      width: 22px;
      height: 22px;
      cursor: pointer;
      background: #020617;
      color: #9ca3af;
      border: 1px solid rgba(148, 163, 184, 0.4);
      display: flex;
      align-items: center;
      justify-content: center;
    }

    .q-nav-btn.current {
      background: #60a5fa;
      border-color: #bfdbfe;
      color: #0b1120;
      font-weight: 600;
    }

    .q-nav-btn.answered {
      background: rgba(34, 197, 94, 0.08);
      border-color: #22c55e;
      color: #bbf7d0;
    }

    .q-nav-btn.skipped {
      background: rgba(234, 179, 8, 0.1);
      border-color: #eab308;
      color: #fef9c3;
    }

    /* RESULT + OVERVIEW SECTIONS (same card style) */
    .hidden { display: none !important; }

    .result-title {
      font-size: 20px;
      font-weight: 600;
      margin-bottom: 4px;
    }

    .result-percent {
      font-size: 32px;
      font-weight: 700;
      margin-bottom: 2px;
    }

    .badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 3px 10px;
      border-radius: 999px;
      font-size: 11px;
      margin-top: 4px;
    }

    .badge.pass {
      background: #ecfdf3;
      color: #166534;
    }

    .badge.fail {
      background: #fef2f2;
      color: #b91c1c;
    }

    .overview-list {
      margin-top: 12px;
      max-height: 340px;
      overflow: auto;
      padding-right: 4px;
      display: flex;
      flex-direction: column;
      gap: 6px;
    }

    .overview-item {
      border-radius: 14px;
      border: 1px solid #e5e7eb;
      background: #f9fafb;
      padding: 8px 10px;
      font-size: 12px;
    }

    .ov-q {
      font-weight: 500;
      margin-bottom: 3px;
    }

    .ov-row {
      display: flex;
      gap: 8px;
      font-size: 11px;
    }

    .ov-label {
      color: #6b7280;
    }

    .ov-ans.correct { color: #166534; }
    .ov-ans.wrong { color: #b91c1c; }

    /* Simple footer note */
    .footer-note {
      margin-top: 16px;
      text-align: center;
      font-size: 11px;
      color: #9ca3af;
    }
    .fullscreen-btn{
  background:#2b6cb0;
  color:#fff;
  border:none;
  border-radius:8px;
  width:36px;
  height:36px;
  font-size:16px;
  cursor:pointer;
  display:flex;
  align-items:center;
  justify-content:center;
  transition:.2s;
}

.fullscreen-btn:hover{
  background:#1e4e8c;
}

/* Mobile adjustment */
@media(max-width:600px){
  .fullscreen-btn{
    width:32px;
    height:32px;
    font-size:14px;
  }
  .go-home-btn{
  background:#2b6cb0;
  color:#fff;
  text-decoration:none;
  padding:6px 14px;
  border-radius:999px;
  font-size:12px;
  font-weight:500;
  display:flex;
  align-items:center;
  gap:6px;
  transition:.2s;
}

.go-home-btn:hover{
  background:#1e4e8c;
}

}
 /* GRID VIEW */
    .grid-container{
      display:grid;
      grid-template-columns:repeat(3,1fr);
      gap:16px;
      margin-top:20px;
    }
    @media(max-width:900px){
      .grid-container{grid-template-columns:repeat(2,1fr);}
    }
    @media(max-width:600px){
      .grid-container{grid-template-columns:1fr;}
    }

    .set-card{
      background:var(--card);
      padding:16px;
      border-radius:var(--radius);
      box-shadow:0 6px 16px rgba(0,0,0,0.06);
      display:flex;
      flex-direction:column;
      gap:10px;
    }
    .badge{
      background:#eef2ff;
      color:#1e3a8a;
      padding:6px 10px;
      border-radius:999px;
      font-size:13px;
      font-weight:600;
      width:max-content;
    }
    .set-title{font-size:16px;font-weight:600;}
    .set-desc{font-size:14px;color:var(--muted);}

    .footer-row{
      display:flex;
      justify-content:space-between;
      align-items:center;
      margin-top:8px;
    }

    .btn{
      padding:8px 12px;
      border-radius:8px;
      font-weight:600;
      cursor:pointer;
      text-decoration:none;
      border:none;
    }
    .btn-primary{
      background:var(--accent);
      color:white;
    }
    .btn-ghost{
      background:white;
      border:1px solid #dbe3ef;
    }

    footer{
      text-align:center;
      margin:24px 0;
      color:var(--muted);
      font-size:13px;
    }

    /* AD SLIDER - lightweight, responsive */
.ad-slider{position:relative;margin:18px 0;border-radius:12px;overflow:hidden;background:#fff}
.ad-track{display:flex;transition:transform .45s ease;will-change:transform}
.ad-slide{min-width:100%;display:block;flex-shrink:0;text-decoration:none}
.ad-slide img{display:block;width:100%;height:220px;object-fit:cover}

/* controls */
.ad-prev,.ad-next{
  position:absolute;top:50%;transform:translateY(-50%);
  background:rgba(0,0,0,0.45);color:#fff;border:0;padding:8px 10px;border-radius:8px;cursor:pointer;font-size:20px;
  box-shadow:0 6px 14px rgba(2,6,23,0.18);
}
.ad-prev{left:12px} .ad-next{right:12px}
.ad-prev:focus,.ad-next:focus{outline:2px solid rgba(59,130,246,0.6)}

/* dots */
.ad-dots{position:absolute;left:50%;transform:translateX(-50%);bottom:10px;display:flex;gap:8px}
.ad-dots button{width:10px;height:10px;border-radius:999px;border:0;background:rgba(255,255,255,0.6);cursor:pointer}
.ad-dots button.active{background:rgba(59,130,246,0.95)}

/* pause hint (small) */
.ad-slider:hover .ad-prev,.ad-slider:hover .ad-next{background:rgba(0,0,0,0.65)}

/* responsive heights */
@media (min-width:900px){ .ad-slide img{height:280px} }
@media (max-width:480px){ .ad-slide img{height:160px} .ad-prev,.ad-next{padding:6px 8px} }
:root{
  --primary:#2563eb;
  --primary-soft:#eff6ff;
  --correct:#16a34a;
  --wrong:#dc2626;
  --bg:#f3f4f6;
}

*{
  box-sizing:border-box;
}

body{
  margin:0;
  font-family:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  background:var(--bg);
  color:#111827;
}

/* ======= HEADER / TOPBAR (ADRE STYLE) ======= */

.topbar {
  position: sticky;
  top: 0;
  z-index: 30;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 14px;
  margin: 0 8px 12px;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  border-radius: 999px;
  box-shadow: 0 10px 30px rgba(15, 23, 42, 0.08);
}

.topbar-left {
  display: flex;
  align-items: center;
  gap: 10px;
}

.topbar-right {
  display: flex;
  align-items: center;
  gap: 10px;
}

/* re-style the existing side-menu button */
.menu-btn {
  border: none;
  background: #e5edff;
  color: #111827;
  width: 32px;
  height: 32px;
  border-radius: 999px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  cursor: pointer;
}

/* logo + brand text */
.logo-circle {
  width: 34px;
  height: 34px;
  border-radius: 999px;
  background: linear-gradient(135deg, #2b6cb0, #667eea);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-weight: 700;
  font-size: 18px;
  box-shadow: 0 10px 20px rgba(37, 99, 235, 0.35);
}

.brand-block {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.brand {
  letter-spacing: 0.12em;
  font-size: 11px;
  font-weight: 700;
  color: #1e293b;
}

.brand-tag {
  font-size: 11px;
  color: #64748b;
  white-space: nowrap;
}

/* top nav links */
.top-nav {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 13px;
}

.top-nav a {
  text-decoration: none;
  color: #4b5563;
  padding: 4px 10px;
  border-radius: 999px;
  transition: background 0.2s, color 0.2s, transform 0.1s;
}

.top-nav a:hover {
  background: #e5edff;
  color: #1d4ed8;
  transform: translateY(-1px);
}

/* Home button style */
.go-home-btn {
  background: #2b6cb0;
  color: #fff !important;
  font-size: 12px;
  font-weight: 500;
}

/* stats pill (attempted count) */
.stats-pill {
  font-size: 11px;
  padding: 4px 10px;
  border-radius: 999px;
  background: #edf2ff;
  color: #1d4ed8;
  display: flex;
  align-items: center;
  gap: 6px;
}

.stats-dot {
  width: 6px;
  height: 6px;
  border-radius: 999px;
  background: #10b981;
}

/* language toggle */
.lang-toggle {
  border-radius: 999px;
  border: 1px solid #cbd5f5;
  padding: 4px 10px;
  font-size: 11px;
  background: #f1f5f9;
  cursor: pointer;
  color: #1f2933;
  display: flex;
  align-items: center;
  gap: 6px;
}

.lang-toggle span {
  padding: 2px 6px;
  border-radius: 999px;
}

.lang-toggle span.active {
  background: #2b6cb0;
  color: #fff;
}

/* mobile hamburger (optional for future) */
.hamburger {
  display: none;
  width: 32px;
  height: 32px;
  border-radius: 999px;
  border: none;
  background: #e5edff;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 4px;
  cursor: pointer;
  padding: 0;
}

.hamburger span {
  width: 16px;
  height: 2px;
  background: #1f2937;
  border-radius: 999px;
}

/* small tweak for mobile */
@media (max-width: 640px){
  .brand-tag{
    display:none;
  }
  .top-nav{
    display:none;
  }
  .hamburger{
    display:flex;
  }
}

/* Side menu */

.side-menu{
  position:fixed;
  inset:0 auto 0 0;
  width:260px;
  background:#ffffff;
  box-shadow:2px 0 12px rgba(0,0,0,.15);
  transform:translateX(-100%);
  transition:transform .2s ease-out;
  z-index:40;
  display:flex;
  flex-direction:column;
}

.side-menu.open{
  transform:translateX(0);
}

.backdrop{
  position:fixed;
  inset:0;
  background:rgba(0,0,0,.35);
  opacity:0;
  pointer-events:none;
  transition:opacity .2s ease-out;
  z-index:35;
}

.backdrop.show{
  opacity:1;
  pointer-events:auto;
}

.side-menu-header{
  padding:10px 14px;
  border-bottom:1px solid #e5e7eb;
  display:flex;
  justify-content:space-between;
  align-items:center;
}

.side-menu-header span{
  font-weight:600;
}

.close-menu-btn{
  border:none;
  background:transparent;
  font-size:18px;
  cursor:pointer;
}

.menu-section-title{
  font-size:12px;
  text-transform:uppercase;
  padding:8px 14px 4px;
  color:#6b7280;
}

.menu-pages{
  padding:0 10px 10px;
  overflow-y:auto;
  flex:1;
}

.menu-page-btn{
  width:100%;
  border:none;
  background:transparent;
  text-align:left;
  padding:6px 10px;
  margin-bottom:4px;
  border-radius:8px;
  font-size:14px;
  cursor:pointer;
  display:flex;
  justify-content:space-between;
  align-items:center;
}

.menu-page-btn span{
  font-size:12px;
  color:#6b7280;
}

.menu-page-btn:hover{
  background:var(--primary-soft);
}

.menu-page-btn.active{
  background:#1d4ed8;
  color:#fff;
}

/* ======= LAYOUT ======= */

.container{
  max-width:900px;
  margin:auto;
  padding:12px;
}

.mcq-card{
  background:#ffffff;
  border-radius:16px;
  padding:12px;
  margin-bottom:10px;
  box-shadow:0 4px 10px rgba(0,0,0,.05);
}

/* Question header with round number */

.q-header{
  display:flex;
  align-items:flex-start;
  gap:10px;
  margin-bottom:6px;
}

.q-number{
  min-width:32px;
  min-height:32px;
  border-radius:999px;
  background:linear-gradient(135deg,#2563eb,#22c55e);
  color:#ffffff;
  display:flex;
  align-items:center;
  justify-content:center;
  font-weight:700;
  font-size:13px;
  box-shadow:0 3px 6px rgba(37,99,235,0.4);
}

.question{
  margin:0;
  font-size:14px;
  font-weight:500;
}

/* Options */

.options{
  margin-top:6px;
}

.options label{
  display:flex;
  align-items:flex-start;
  gap:6px;
  border:1px solid #e5e7eb;
  border-radius:10px;
  padding:8px 10px;
  margin-bottom:6px;
  cursor:pointer;
  transition:.18s;
  font-size:14px;
  background:#ffffff;
}

.options input{
  margin-top:3px;
}

.option-text{
  flex:1;
}

.options label:hover{
  background:var(--primary-soft);
}

.correct{
  border-color:var(--correct)!important;
  background:#ecfdf5!important;
  color:var(--correct);
}

.wrong{
  border-color:var(--wrong)!important;
  background:#fef2f2!important;
  color:var(--wrong);
}

/* Answer box & buttons */

.answer-box{
  display:none;
  margin-top:8px;
  padding:8px;
  border-radius:10px;
  background:#ecfdf3;
  color:#065f46;
  font-size:13px;
}

.action-row{
  margin-top:8px;
  display:flex;
  justify-content:flex-end;
}

.view-btn{
  border:none;
  background:#e0e7ff;
  padding:5px 14px;
  font-size:12px;
  border-radius:999px;
  cursor:pointer;
}

/* Pagination */

.pagination{
  display:flex;
  gap:8px;
  justify-content:space-between;
  align-items:center;
  margin:16px 0 24px;
}

.pagination button{
  border:none;
  padding:7px 16px;
  border-radius:999px;
  background:#111827;
  color:#fff;
  cursor:pointer;
  font-size:13px;
}

.pagination button:disabled{
  background:#9ca3af;
}

#pageInfo{
  font-size:13px;
  color:#4b5563;
}

/* ======= RESPONSIVE ======= */

@media (max-width:640px){
  header h1{
    font-size:15px;
  }
  .container{
    padding:8px;
  }
  .mcq-card{
    padding:10px;
    border-radius:14px;
  }
  .question{
    font-size:13px;
  }
  .options label{
    font-size:13px;
  }
}

  /* BEAUTIFUL COLOUR PALETTE */
  

  /* GRID VIEW */
  .grid-container{
    display:grid;
    grid-template-columns:repeat(3,1fr);
    gap:20px;
    margin-top:20px;
  }
  @media(max-width:900px){
    .grid-container{grid-template-columns:repeat(2,1fr);}
  }
  @media(max-width:600px){
    .grid-container{grid-template-columns:1fr;}
  }

  /* COLOURFUL CARD */
  .set-card{
    padding:18px;
    border-radius:var(--radius);
    box-shadow:0 8px 20px rgba(0,0,0,0.08);
    display:flex;
    flex-direction:column;
    gap:12px;
    transition:0.3s;
    position:relative;
    overflow:hidden;
  }

  /* CARD HOVER */
  .set-card:hover{
    transform:translateY(-4px);
    box-shadow:0 12px 28px rgba(0,0,0,0.12);
    border-color: 2px #60a5fa;
  }

  /* SPLASH BACKGROUND */
  .set-card::before{
    content:"";
     border-color: 2px #60a5fa;
    position:absolute;
    right:-40px;
    top:-40px;
    width:120px;
    height:120px;
    background:rgba(255,255,255,0.4);
    border-radius:50%;
    filter:blur(8px);
  }

  /* BADGE */
  .badge{
    background:#ffffffaa;
    padding:6px 12px;
    border-radius:999px;
    font-size:13px;
    font-weight:600;
    width:max-content;
    backdrop-filter:blur(4px);
  }

  .set-title{
    font-size:18px;
    font-weight:700;
  }
  .set-desc{
    font-size:14px;
    color:var(--muted);
  }

  .footer-row{
    display:flex;
    justify-content:flex-end;
    margin-top:10px;
  }

  /* BUTTON */
  .btn{
    padding:8px 14px;
    border-radius:8px;
    font-weight:600;
    cursor:pointer;
    text-decoration:none;
    border:none;
  }
  .btn-primary{
    background:var(--accent);
    color:white;
  }