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

:root {
  --brand: #0d6efd;
  --brand-dark: #0756c7;
  --ink: #232a31;
  --muted: #66717d;
  --surface: #f7f9fc;
  --border: #dfe5ec;
}

body {
  font-family: "Segoe UI", Roboto, Arial, sans-serif;
  font-size: 16px;
  font-weight: 400;
  color: var(--muted);
  line-height: 1.65;
  background: #fff;
}

h1, h2, h3, h4, h5, h6 {
  color: var(--ink);
  line-height: 1.25;
}

a {
  color: var(--brand);
  text-decoration: none;
}

a:hover {
  color: var(--brand-dark);
}

img {
  max-width: 100%;
}

.navbar {
  padding: 15px 0;
  background: #fff;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.05);
  position: relative;
}

.navbar .navbar-brand img {
  width: auto;
  height: 50px;
}

.navbar-title {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  text-align: center;
  width: min(560px, 60vw);
}

.navbar-title h2 {
  margin: 0;
  font-size: 18px;
  font-weight: 700;
}

.navbar-title h4 {
  margin: 2px 0 0;
  color: var(--muted);
  font-size: 14px;
  font-weight: 500;
}

.navbar .navbar-toggler {
  border: 0;
}

.navbar .navbar-toggler i {
  color: var(--ink);
  font-size: 28px;
}

.navbar .navbar-toggler .close {
  display: none;
}

.navbar .navbar-toggler:not(.collapsed) > .open {
  display: none;
}

.navbar .navbar-toggler:not(.collapsed) > .close {
  display: inline-block;
}

section {
  padding: 60px 0;
}

.welcome-banner {
  border-bottom: 1px solid #edf0f3;
}

.lead-form {
  width: 100%;
  max-width: 455px;
  display: grid;
  gap: 12px;
}

.lead-form .form-control {
  min-height: 54px;
  border-radius: 10px;
  border: 1px solid #d7dce2;
  padding: 12px 16px;
  font-size: 16px;
  color: #222;
  background: #fff;
}

.lead-form .form-control:focus {
  border-color: var(--brand);
  box-shadow: 0 0 0 0.2rem rgba(13, 110, 253, 0.16);
}

.lead-submit-btn {
  min-height: 58px;
  border-radius: 10px;
  font-size: 21px;
  font-weight: 500;
}

.form-consent {
  display: flex;
  align-items: flex-start;
  gap: 9px;
  text-align: left;
  color: #68727d;
  font-size: 13px;
  line-height: 1.45;
}

.form-consent input {
  margin-top: 3px;
  flex: 0 0 auto;
}

.feature-item h4 {
  font-size: 22px;
}

.education-visual {
  position: relative;
  min-height: 390px;
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: 24px;
  background: linear-gradient(145deg, #eef5ff, #ffffff 58%, #edf9f8);
  box-shadow: 0 18px 45px rgba(41, 69, 102, 0.13);
  padding: 32px;
  text-align: left;
}

.visual-topline {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  margin-bottom: 26px;
}

.visual-badge {
  display: inline-block;
  padding: 6px 11px;
  border-radius: 999px;
  color: #0b5ed7;
  background: #dceaff;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .04em;
}

.visual-chart {
  height: 130px;
  display: flex;
  align-items: flex-end;
  gap: 12px;
  padding: 18px 18px 12px;
  border: 1px solid rgba(13, 110, 253, .12);
  border-radius: 16px;
  background: rgba(255, 255, 255, .86);
}

.visual-chart span {
  flex: 1;
  min-width: 18px;
  border-radius: 7px 7px 3px 3px;
  background: linear-gradient(180deg, #5aa0ff, #0d6efd);
}

.visual-list {
  margin-top: 18px;
  display: grid;
  gap: 11px;
}

.visual-list div {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  padding: 12px 14px;
  border: 1px solid rgba(36, 48, 60, .08);
  border-radius: 12px;
  background: rgba(255, 255, 255, .9);
  color: #35404b;
  font-size: 14px;
  font-weight: 600;
}

.visual-list small {
  color: #71808f;
  font-weight: 500;
}

.carousel-control-prev,
.carousel-control-next {
  width: 5%;
}

.learning-grid {
  display: flex;
  gap: 12px;
  padding: 0 7px;
}

.learning-card {
  width: 25%;
  min-height: 280px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 25px 20px;
  border: 1px solid var(--border);
  border-radius: 18px;
  background: #fff;
  box-shadow: 0 10px 25px rgba(37, 61, 88, .08);
}

.learning-card .number {
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  border-radius: 13px;
  color: #fff;
  background: var(--brand);
  font-size: 16px;
  font-weight: 800;
}

.learning-card h3 {
  margin: 22px 0 12px;
  font-size: 21px;
}

.learning-card p {
  margin: 0;
  font-size: 14px;
  line-height: 1.6;
}

.learning-card .card-label {
  margin-top: 22px;
  color: var(--brand);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .06em;
  text-transform: uppercase;
}

.feature-card {
  height: 100%;
  padding: 28px 22px;
  border: 1px solid #e7ebef;
  border-radius: 16px;
  background: #f8f9fa;
  transition: transform .25s ease, box-shadow .25s ease;
}

.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 20px rgba(0, 0, 0, .07);
}

.about {
  padding: 50px 0;
  background: #f9f9f9;
}

.about .content h5 {
  font-size: 20px;
  font-weight: 600;
}

.info-stat {
  height: 100%;
  padding: 22px;
  border: 1px solid #e6e9ed;
  border-radius: 14px;
  background: #fff;
}

.copyright {
  padding: 25px 0;
  color: #fff;
  background: #222;
}

.copyright a {
  color: #d7d7d7;
}

.copyright a:hover {
  color: #fff;
}

.legal-page {
  min-height: calc(100vh - 171px);
  padding: 55px 0 70px;
  background: #f7f9fc;
}

.legal-card {
  max-width: 900px;
  margin: 0 auto;
  padding: 38px;
  border: 1px solid var(--border);
  border-radius: 18px;
  background: #fff;
  box-shadow: 0 14px 35px rgba(37, 61, 88, .08);
}

.legal-card h1 {
  margin-bottom: 8px;
  font-size: 36px;
}

.legal-card h2 {
  margin-top: 30px;
  font-size: 21px;
}

.legal-card p,
.legal-card li {
  color: #596572;
  font-size: 15px;
}

.legal-card ul {
  padding-left: 20px;
}

@media (max-width: 991px) {
  .navbar-title {
    display: none;
  }

  .education-visual {
    min-height: 360px;
  }

  .learning-card {
    min-height: 250px;
  }
}

@media (max-width: 767px) {
  section {
    padding: 45px 0;
  }

  .learning-grid {
    flex-wrap: wrap;
  }

  .learning-card {
    width: calc(50% - 6px);
  }

  .carousel-control-prev,
  .carousel-control-next {
    display: none;
  }

  .legal-card {
    padding: 26px 20px;
  }
}

@media (max-width: 480px) {
  .learning-card {
    width: 100%;
    min-height: 220px;
  }

  .education-visual {
    min-height: 340px;
    padding: 24px 20px;
  }
}