:root {
  --navy: #061a33;
  --blue: #0878ed;
  --blue2: #1ea7ff;
  --gold: #ffd12f;
  --ink: #10243f;
  --muted: #65748a;
  --line: #e2e9f2;
  --soft: #f6f9fd;
  --red: #e6333e;
  --green: #12a46a;
}
* {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
}
body {
  margin: 0;
  font-family: "DM Sans", Arial, sans-serif;
  color: var(--ink);
  background: #fff;
  line-height: 1.5;
}
a {
  text-decoration: none;
}
.header {
  height: 68px;
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 clamp(18px, 5vw, 70px);
  background: #fff;
  box-shadow: 0 2px 18px #061a3310;
}
.logo {
  display: grid;
  line-height: 0.82;
  width: max-content;
}
.logo span {
  font-size: 9px;
  font-weight: 900;
}
.logo strong {
  font-size: 20px;
  letter-spacing: -1.3px;
  color: var(--blue);
}
.logo b {
  font-size: 13px;
  letter-spacing: 0.4px;
}
.header-btn,
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  font-weight: 800;
  border-radius: 10px;
  transition: 0.2s;
}
.header-btn {
  background: var(--blue);
  color: #fff;
  padding: 11px 18px;
  font-size: 13px;
}
.header-btn:hover,
.btn:hover {
  transform: translateY(-2px);
}
.hero {
  min-height: 490px;
  position: relative;
  overflow: hidden;
  background: linear-gradient(110deg, #061a33, #123e69 55%, #f0c889);
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.hero:after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, #061a33 0%, #061a33df 38%, #061a3300 76%);
}
.hero-content {
  position: relative;
  z-index: 3;
  max-width: 720px;
  padding: 74px clamp(22px, 7vw, 95px) 60px;
  color: #fff;
}
.kicker {
  font-size: 10px;
  letter-spacing: 4px;
  font-weight: 900;
  margin: 0 0 12px;
  color: #d9e9fa;
}
.kicker.blue {
  color: var(--blue);
}
.hero h1 {
  font-size: clamp(42px, 5.3vw, 70px);
  line-height: 0.98;
  letter-spacing: -2.7px;
  margin: 0;
  max-width: 670px;
}
.hero h1 span {
  color: #2aaaff;
}
.hero-lead {
  font-size: 20px;
  max-width: 440px;
  margin: 20px 0;
}
.hero-points {
  display: flex;
  flex-wrap: wrap;
  gap: 9px 17px;
  font-size: 12px;
  font-weight: 700;
  margin: 0 0 27px;
}
.btn {
  padding: 14px 22px;
  font-size: 14px;
}
.gold {
  background: var(--gold);
  color: #061a33;
  box-shadow: 0 9px 25px #d9ad001f;
}
.blue-btn {
  background: var(--blue);
  color: #fff;
}
.wide {
  width: 100%;
}
.tiny {
  font-size: 10px;
  color: #dcecff;
  margin-top: 12px;
}
.hero-books {
  filter: drop-shadow(0 22px 25px #0007);
  padding-right: 5%;
}
.hero-books img {
  max-width: 600px;
}
.hero-books img:nth-child(2) {
  transform: rotate(-3deg);
  z-index: 2;
}
.hero-books img:nth-child(3) {
  transform: rotate(3deg);
  z-index: 3;
}
.hero-books img:nth-child(4) {
  transform: rotate(8deg) translateY(12px);
  z-index: 4;
}
.hero-books img:hover {
  transform: translateY(-12px) rotate(0deg) scale(1.03);
  z-index: 8;
}
.trust {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  padding: 16px clamp(18px, 5vw, 70px);
  border-bottom: 1px solid var(--line);
  background: #fff;
}
.trust > div {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 15px;
}
.trust i {
  grid-row: 1/3;
  font-style: normal;
  font-size: 28px;
  color: var(--blue);
  text-align: center;
}
.trust b {
  font-size: 12px;
  display: block;
}
.trust small {
  font-size: 10px;
  color: var(--muted);
}
.section {
  padding: 72px clamp(16px, 5vw, 70px);
}
.heading {
  text-align: center;
  max-width: 800px;
  margin: 0 auto 36px;
}
.heading h2 {
  font-size: clamp(30px, 4.4vw, 46px);
  line-height: 1.05;
  letter-spacing: -1.5px;
  margin: 0;
}
.heading h2 span {
  color: var(--blue);
}
.heading > p:last-child {
  color: var(--muted);
  margin: 10px 0 0;
}
.product-grid {
  max-width: 1160px;
  margin: auto;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}
.product {
  border: 1px solid var(--line);
  border-radius: 16px;
  background: #fff;
  box-shadow: 0 10px 30px #071a3310;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: 0.2s;
}
.product:hover {
  transform: translateY(-3px);
  box-shadow: 0 16px 38px #071a3319;
}
.product > img {
  width: 100%;
  aspect-ratio: 0.77;
  object-fit: cover;
  display: block;
  background: #111;
}
.product-body {
  padding: 14px;
}
.product h3 {
  font-size: 16px;
  line-height: 1.15;
  margin: 0 0 7px;
}
.product p {
  font-size: 12px;
  color: var(--muted);
  min-height: 56px;
  margin: 0 0 8px;
}
.product ul {
  list-style: none;
  padding: 0;
  margin: 0 0 12px;
  display: grid;
  gap: 5px;
  font-size: 10px;
}
.product li:before {
  content: "✓";
  display: inline-grid;
  place-items: center;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: #0878ed;
  color: #fff;
  font-weight: 900;
  margin-right: 6px;
}
.product-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin-top: auto;
}
.product-bottom strong {
  font-size: 24px;
}
.product-bottom .btn {
  padding: 10px 11px;
  font-size: 11px;
}
.library {
  max-width: 1160px;
  margin: 0 auto 72px;
  padding: 35px clamp(18px, 5vw, 55px);
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 50px;
  align-items: center;
  background: linear-gradient(120deg, #fffdf1, #eef8ff);
  border: 1px solid #f0cf3c;
  border-radius: 22px;
}
.library-covers {
  height: 275px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.library-covers img {
  width: 116px;
  height: 190px;
  object-fit: cover;
  border-radius: 3px;
  box-shadow: 8px 11px 17px #071a3330;
  margin-left: -22px;
}
.library-covers img:nth-child(1) {
  transform: rotate(-5deg);
}
.library-covers img:nth-child(2) {
  transform: rotate(-1deg);
  z-index: 2;
}
.library-covers img:nth-child(3) {
  transform: rotate(2deg);
  z-index: 3;
}
.library-covers img:nth-child(4) {
  transform: rotate(6deg);
  z-index: 4;
}
.badge {
  display: inline-block;
  background: var(--red);
  color: #fff;
  border-radius: 6px;
  padding: 5px 10px;
  font-size: 10px;
  font-weight: 900;
  margin-bottom: 11px;
}
.library-content h2 {
  font-size: 40px;
  line-height: 1.04;
  margin: 0;
}
.library-lead {
  color: var(--muted);
  margin: 8px 0 14px;
}
.checks {
  list-style: none;
  padding: 0;
  margin: 0 0 14px;
  display: grid;
  gap: 6px;
  font-size: 13px;
}
.checks li:before {
  content: "✓";
  display: inline-grid;
  place-items: center;
  width: 19px;
  height: 19px;
  border-radius: 50%;
  background: var(--green);
  color: #fff;
  font-weight: 900;
  margin-right: 8px;
}
.bundle-price {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 10px 0 18px;
}
.bundle-price b {
  font-size: 45px;
  color: #d72d2d;
}
.bundle-price del {
  font-size: 18px;
  color: #7b8798;
}
.bundle-price span {
  font-size: 10px;
  font-weight: 900;
  background: var(--red);
  color: #fff;
  padding: 5px 8px;
  border-radius: 5px;
}
.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  background: var(--navy);
  color: #fff;
  padding: 22px clamp(18px, 6vw, 90px);
  text-align: center;
}
.stats b {
  display: block;
  color: #20a2ff;
  font-size: 27px;
}
.stats span {
  font-size: 10px;
  color: #d9e4ef;
}
.testimonials {
  background: #fbfdff;
}
.reviews {
  max-width: 1100px;
  margin: auto;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}
.reviews blockquote {
  margin: 0;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 22px;
  font-size: 13px;
  box-shadow: 0 8px 24px #071a3309;
}
.stars {
  color: #f2b400;
  font-weight: 900;
  letter-spacing: 2px;
  margin-bottom: 10px;
}
.reviews footer {
  margin-top: 18px;
  display: grid;
}
.reviews footer b {
  font-size: 12px;
}
.reviews footer small {
  font-size: 10px;
  color: var(--muted);
}
.faq {
  max-width: 1100px;
  margin: auto;
}
.faq-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 9px;
}
.faq details {
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 0 16px;
  background: #fff;
}
.faq summary {
  cursor: pointer;
  list-style: none;
  padding: 15px 0;
  font-weight: 700;
  font-size: 13px;
}
.faq summary::-webkit-details-marker {
  display: none;
}
.faq summary:after {
  content: "+";
  float: right;
  font-size: 18px;
}
.faq details[open] summary:after {
  content: "−";
}
.faq details p {
  font-size: 12px;
  color: var(--muted);
  padding: 0 0 14px;
  margin: 0;
}
.final {
  background: linear-gradient(110deg, #0a4178, #061a33);
  min-height: 360px;
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.final-content {
  position: relative;
  z-index: 3;
  padding: 65px clamp(20px, 7vw, 90px);
  max-width: 650px;
}
.final h2 {
  font-size: clamp(35px, 5vw, 55px);
  line-height: 1.02;
  margin: 0;
}
.final-content > p:not(.kicker) {
  color: #dcecff;
  max-width: 520px;
  margin: 13px 0 22px;
}
.final small {
  display: block;
  color: #dcecff;
  font-size: 10px;
  margin-top: 12px;
}
.final-scene {
  position: absolute;
  inset: 0;
  opacity: 0.8;
}
.final-sun {
  position: absolute;
  right: 27%;
  top: 20%;
  width: 120px;
  height: 120px;
  border-radius: 50%;
  background: #ffcf76;
  box-shadow: 0 0 100px 35px #ffcf7655;
}
.footer-banner{
  max-width: 600px;
  padding-right: 5%;
}
.footer-banner img{
  max-width: 100%;
}
.final-mountains {
  position: absolute;
  inset: auto 0 0;
  height: 75%;
  background: #0b2e51;
  clip-path: polygon(
    0 75%,
    13% 45%,
    24% 65%,
    37% 25%,
    49% 65%,
    62% 38%,
    75% 68%,
    88% 20%,
    100% 60%,
    100% 100%,
    0 100%
  );
}
.footer {
  height: 58px;
  display: grid;
  place-items: center;
  background: #041426;
  color: #b8c5d3;
  font-size: 10px;
}

@media (max-width: 950px) {
  .product-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .library {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  .reviews {
    grid-template-columns: 1fr;
  }
  .faq-grid {
    grid-template-columns: 1fr;
  }
}
@media (max-width: 600px) {
  .header {
    height: 60px;
    padding: 0 13px;
  }
  .header-btn {
    font-size: 10px;
    padding: 9px 12px;
  }
  .logo strong {
    font-size: 17px;
  }
  .logo b {
    font-size: 11px;
  }
  .hero {
    min-height: 400px;
  }
  .hero-content {
    padding: 30px 20px 30px 20px;
  }
  .hero h1 {
    font-size: 32px;
    letter-spacing: -1.8px;
  }
  .hero-lead {
    font-size: 14px;
  }
  .hero-points {
    font-size: 10px;
    gap: 7px 10px;
  }
  .hero-books {
    right: 2%;
    bottom: 0;
    width: 52%;
    height: 72%;
    opacity: 0.95;
  }
  .hero-books img {
    width: 25%;
    margin-left: -12px;
  }
  .trust {
    grid-template-columns: 1fr 1fr;
    padding: 11px 9px;
    gap: 10px;
  }
  .trust > div {
    grid-template-columns: 29px 1fr;
  }
  .trust i {
    font-size: 21px;
  }
  .trust b {
    font-size: 9px;
  }
  .trust small {
    font-size: 7px;
  }
  .section {
    padding: 43px 10px;
  }
  .heading {
    margin-bottom: 22px;
  }
  .heading h2 {
    font-size: 28px;
  }
  .product-grid {
    gap: 8px;
  }
  .product {
    border-radius: 11px;
  }
  .product > img {
    aspect-ratio: 0.73;
  }
  .product-body {
    padding: 9px;
  }
  .product h3 {
    font-size: 11px;
  }
  .product p {
    font-size: 9px;
    line-height: 1.3;
    min-height: 30px;
  }
  .product ul {
    font-size: 8px;
    gap: 4px;
  }
  .product li:before {
    width: 13px;
    height: 13px;
    font-size: 8px;
    margin-right: 4px;
  }
  .product-bottom strong {
    font-size: 19px;
  }
  .product-bottom .btn {
    padding: 8px 7px;
    font-size: 9px;
  }
  .library {
    margin: 0 9px 42px;
    padding: 20px 13px;
    border-radius: 15px;
  }
  .library-covers {
    height: 145px;
  }
  .library-covers img {
    width: 64px;
    height: 108px;
    margin-left: -11px;
  }
  .library-content h2 {
    font-size: 28px;
  }
  .checks {
    font-size: 10px;
  }
  .bundle-price b {
    font-size: 36px;
  }
  .bundle-price del {
    font-size: 14px;
  }
  .bundle-price span {
    font-size: 8px;
  }
  .stats {
    padding: 14px 4px;
  }
  .stats b {
    font-size: 18px;
  }
  .stats span {
    font-size: 7px;
  }
  .reviews blockquote {
    font-size: 11px;
    padding: 16px;
  }
  .faq-grid {
    gap: 7px;
  }
  .faq details {
    padding: 0 12px;
  }
  .faq summary {
    font-size: 11px;
    padding: 12px 0;
  }
  .faq details p {
    font-size: 10px;
  }
  .final {
    min-height: 390px;
  }
  .final-content {
    padding: 50px 20px;
  }
  .final h2 {
    font-size: 34px;
  }
  .footer {
    height: 50px;
    font-size: 9px;
  }
  .hero-books{
    display: none;
  }
  .trust{
    display: none;
  }
  .footer-banner{
    display: none;
  }
}