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

:root {
  --primary-color: #6f42c1;
  --secondary-color: #9d4edd;
  --dark-color: #111827;
  --text-color: #4b5563;
  --light-bg: #f8fafc;
  --white-color: #ffffff;
  --border-color: #e5e7eb;
}

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

body {
  background: var(--light-bg);
  font-family: 'Poppins', 'Noto Sans Bengali', sans-serif;
  color: var(--dark-color);
}

a {
  text-decoration: none;
}

.custom-navbar {
  background: rgba(17, 24, 39, 0.96);
  backdrop-filter: blur(10px);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.12);
}

.navbar-brand {
  letter-spacing: 0.3px;
}

.nav-link {
  font-weight: 500;
}

.nav-link:hover {
  color: #ffe066 !important;
}

.hero-section {
  background:
    linear-gradient(135deg, rgba(111, 66, 193, 0.12), rgba(157, 78, 221, 0.08)),
    var(--white-color);
  padding: 80px 0;
}

.min-vh-75 {
  min-height: 75vh;
}

.hero-badge {
  background: rgba(111, 66, 193, 0.1);
  color: var(--primary-color);
  border: 1px solid rgba(111, 66, 193, 0.2);
  padding: 10px 16px;
  border-radius: 50px;
  font-weight: 600;
}

.hero-title {
  font-size: clamp(2.3rem, 5vw, 4.5rem);
  font-weight: 800;
  line-height: 1.1;
  color: var(--dark-color);
}

.hero-title span {
  color: var(--primary-color);
}

.hero-text {
  max-width: 620px;
  font-size: 1.08rem;
  color: var(--text-color);
  margin-top: 20px;
  line-height: 1.8;
}

.hero-card {
  background: var(--white-color);
  border-radius: 26px;
  padding: 35px;
  box-shadow: 0 25px 60px rgba(17, 24, 39, 0.12);
  border: 1px solid var(--border-color);
}

.hero-card-icon {
  width: 70px;
  height: 70px;
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  color: var(--white-color);
  display: grid;
  place-items: center;
  border-radius: 20px;
  font-size: 2rem;
  margin-bottom: 25px;
}

.hero-card h4 {
  font-weight: 700;
  margin-bottom: 12px;
}

.hero-card p {
  color: var(--text-color);
  line-height: 1.7;
}

.stats-box {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin-top: 25px;
}

.stats-box div {
  background: #f3f4f6;
  border-radius: 16px;
  padding: 16px 10px;
  text-align: center;
}

.stats-box h5 {
  margin-bottom: 3px;
  color: var(--primary-color);
  font-weight: 800;
}

.stats-box small {
  color: var(--text-color);
  font-size: 0.78rem;
}

.section-padding {
  padding: 90px 0;
}

.section-heading h2 {
  font-weight: 800;
  color: var(--dark-color);
}

.section-heading p {
  color: var(--text-color);
  margin-top: 10px;
}

.feature-card,
.practice-card {
  background: var(--white-color);
  border: 1px solid var(--border-color);
  border-radius: 24px;
  padding: 30px;
  height: 100%;
  transition: 0.3s ease;
  box-shadow: 0 10px 30px rgba(17, 24, 39, 0.05);
}

.feature-card:hover,
.practice-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 50px rgba(17, 24, 39, 0.12);
}

.feature-card i {
  font-size: 2.4rem;
  color: var(--primary-color);
  margin-bottom: 20px;
  display: inline-block;
}

.feature-card h5,
.practice-card h4 {
  font-weight: 700;
  margin-bottom: 12px;
}

.feature-card p,
.practice-card p {
  color: var(--text-color);
  line-height: 1.7;
}

.practice-section {
  background: #f1f5f9;
}

.practice-icon {
  width: 65px;
  height: 65px;
  display: grid;
  place-items: center;
  border-radius: 18px;
  background: rgba(111, 66, 193, 0.1);
  color: var(--primary-color);
  font-size: 2rem;
  margin-bottom: 22px;
}

.quote-section {
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
}

.quote-box {
  max-width: 800px;
  margin: auto;
  background: rgba(255, 255, 255, 0.12);
  color: var(--white-color);
  border-radius: 28px;
  padding: 50px 30px;
  backdrop-filter: blur(12px);
}

.quote-icon {
  font-size: 2.5rem;
  color: #ffe066;
  margin-bottom: 18px;
}

.quote-box h2 {
  font-weight: 800;
  margin-bottom: 20px;
}

.quote-text {
  font-size: 1.4rem;
  font-weight: 600;
  margin-bottom: 10px;
}

.footer {
  background: var(--dark-color);
  color: var(--white-color);
  padding: 28px 0;
}

.footer small {
  color: #d1d5db;
}

@media (max-width: 768px) {
  .hero-section {
    padding: 55px 0;
  }

  .section-padding {
    padding: 65px 0;
  }

  .hero-card {
    padding: 28px;
  }

  .stats-box {
    grid-template-columns: 1fr;
  }

  .navbar-nav {
    gap: 10px;
    padding-top: 15px;
  }

  .nav-link.btn {
    text-align: center;
  }
}

.exam-header {
  background:
    linear-gradient(135deg, rgba(111, 66, 193, 0.12), rgba(157, 78, 221, 0.08)),
    #ffffff;
  padding: 70px 0 55px;
}

.exam-badge {
  display: inline-block;
  background: rgba(111, 66, 193, 0.1);
  color: #6f42c1;
  border: 1px solid rgba(111, 66, 193, 0.2);
  padding: 9px 16px;
  border-radius: 50px;
  font-weight: 600;
  font-size: 0.95rem;
}

.exam-title {
  font-size: clamp(2rem, 5vw, 3.3rem);
  font-weight: 800;
  color: #111827;
}

.exam-subtitle {
  max-width: 650px;
  margin: 16px auto 0;
  color: #4b5563;
  font-size: 1.05rem;
  line-height: 1.7;
}

.exam-content {
  padding: 60px 0 80px;
  background: #f8fafc;
}

.exam-info-card {
  background: #ffffff;
  border: 1px solid #e5e7eb;
  border-radius: 24px;
  padding: 25px;
  box-shadow: 0 12px 35px rgba(17, 24, 39, 0.06);
}

.info-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
}

.info-item i {
  width: 45px;
  height: 45px;
  background: rgba(111, 66, 193, 0.1);
  color: #6f42c1;
  display: grid;
  place-items: center;
  border-radius: 14px;
  font-size: 1.4rem;
  flex-shrink: 0;
}

.info-item h6 {
  margin-bottom: 4px;
  font-weight: 700;
  color: #111827;
}

.info-item p {
  margin-bottom: 0;
  color: #6b7280;
  font-size: 0.92rem;
}

.exam-accordion .accordion-item {
  border: 1px solid #e5e7eb;
  border-radius: 18px;
  overflow: hidden;
  margin-bottom: 16px;
  box-shadow: 0 8px 25px rgba(17, 24, 39, 0.04);
}

.exam-accordion .accordion-button {
  font-weight: 700;
  padding: 18px 22px;
}

.exam-accordion .accordion-button:not(.collapsed) {
  background: rgba(111, 66, 193, 0.08);
  color: #6f42c1;
}

.active-link {
  color: #ffe066 !important;
  font-weight: 700;
}

@media (max-width: 768px) {
  .exam-header {
    padding: 50px 0 40px;
  }

  .exam-content {
    padding: 45px 0 65px;
  }

  .exam-info-card {
    padding: 22px;
  }
}