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

html {
  scroll-behavior: smooth;
}

body {
  font-family: "Inter", sans-serif;
  color: #151515;
  background: #fff;
  line-height: 1.6;
}

img {
  width: 100%;
  display: block;
}

button,
input,
textarea,
select {
  font: inherit;
}

button {
  cursor: pointer;
}

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

.container {
  width: min(1120px, 92%);
  margin: auto;
}

/* TOP BAR */

.top-bar {
  background: #111;
  color: white;
  text-align: center;
  padding: 9px 15px;
  font-size: 13px;
  font-weight: 500;
}

/* HEADER */

.header {
  border-bottom: 1px solid #eee;
  background: white;
}

.nav {
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  font-size: 21px;
  font-weight: 800;
  letter-spacing: -1px;
}

.nav-btn {
  border: 1px solid #111;
  padding: 10px 20px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 14px;
}

/* HERO */

.hero {
  padding: 60px 0 80px;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr .95fr;
  gap: 70px;
  align-items: center;
}

.hero-image {
  position: relative;
  border-radius: 18px;
  overflow: hidden;
  background: #f3f3f3;
}

.hero-image img {
  height: 650px;
  object-fit: cover;
}

.sale-badge {
  position: absolute;
  top: 18px;
  left: 18px;
  background: #111;
  color: white;
  padding: 8px 13px;
  border-radius: 5px;
  font-size: 11px;
  font-weight: 700;
}

.small-title {
  display: inline-block;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 2px;
  margin-bottom: 14px;
}

.hero-content h1 {
  font-size: clamp(42px, 5vw, 68px);
  line-height: 1;
  letter-spacing: -3px;
  margin-bottom: 22px;
}

.hero-text {
  color: #666;
  font-size: 17px;
  max-width: 500px;
  margin-bottom: 20px;
}

.rating {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 22px 0;
}

.rating span {
  letter-spacing: 2px;
}

.rating small {
  color: #777;
}

.price-box {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 25px 0;
}

.old-price {
  text-decoration: line-through;
  color: #999;
}

.price {
  font-size: 35px;
  font-weight: 800;
}

.discount {
  background: #eee;
  padding: 5px 9px;
  border-radius: 5px;
  font-size: 12px;
  font-weight: 700;
}

.benefits-mini {
  display: grid;
  gap: 11px;
  margin: 25px 0;
}

.benefits-mini div {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  color: #555;
}

.benefits-mini svg {
  width: 18px;
  height: 18px;
}

.main-btn,
.secondary-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  background: #111;
  color: white;
  padding: 16px 25px;
  border-radius: 9px;
  font-weight: 700;
  border: none;
  transition: .2s;
}

.main-btn:hover,
.secondary-btn:hover,
.submit-btn:hover {
  transform: translateY(-2px);
  background: #292929;
}

.secure-text {
  color: #888;
  font-size: 12px;
  margin-top: 13px;
}

/* SECTION HEADING */

.section-heading {
  text-align: center;
  margin-bottom: 45px;
}

.section-heading span {
  font-size: 11px;
  letter-spacing: 2px;
  font-weight: 800;
}

.section-heading h2 {
  font-size: 38px;
  letter-spacing: -1.5px;
  margin-top: 7px;
}

/* FEATURES */

.features {
  padding: 90px 0;
  background: #f7f7f5;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}

.feature-card {
  background: white;
  padding: 28px;
  border-radius: 13px;
}

.icon {
  width: 45px;
  height: 45px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  background: #f0f0f0;
  margin-bottom: 20px;
}

.icon svg {
  width: 21px;
}

.feature-card h3 {
  margin-bottom: 8px;
}

.feature-card p {
  color: #777;
  font-size: 14px;
}

/* PRODUCT */

.product-section {
  padding: 100px 0;
}

.product-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 70px;
  align-items: center;
}

.product-text h2 {
  font-size: 48px;
  line-height: 1.05;
  letter-spacing: -2px;
  margin-bottom: 20px;
}

.product-text > p {
  color: #666;
  margin-bottom: 25px;
}

.check-list {
  list-style: none;
  display: grid;
  gap: 13px;
  margin-bottom: 30px;
}

.check-list li {
  display: flex;
  gap: 10px;
  align-items: center;
  font-weight: 500;
}

.check-list svg {
  width: 18px;
}

.product-photo {
  border-radius: 18px;
  overflow: hidden;
}

.product-photo img {
  height: 580px;
  object-fit: cover;
}

/* CHOICE */

.choice-section {
  padding: 90px 0;
  background: #f7f7f5;
}

.choice-card {
  max-width: 700px;
  margin: auto;
  background: white;
  padding: 35px;
  border-radius: 15px;
}

.choice-group {
  margin-bottom: 28px;
}

.choice-group label {
  display: block;
  font-weight: 700;
  margin-bottom: 13px;
}

.options {
  display: flex;
  gap: 10px;
}

.color-option {
  width: 43px;
  height: 43px;
  border-radius: 50%;
  border: 3px solid white;
  outline: 1px solid #ddd;
}

.color-option.active {
  outline: 2px solid #111;
}

.size-option {
  width: 55px;
  height: 45px;
  border: 1px solid #ddd;
  background: white;
  border-radius: 7px;
  font-weight: 600;
}

.size-option.active {
  background: #111;
  color: white;
  border-color: #111;
}

.selected-info {
  margin-top: 10px;
  font-size: 13px;
  color: #777;
}

.full-btn {
  width: 100%;
}

/* SIZE */

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

.table-wrapper {
  max-width: 800px;
  margin: auto;
  overflow-x: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
}

th,
td {
  padding: 16px;
  border-bottom: 1px solid #eee;
  text-align: center;
}

th {
  background: #f5f5f5;
}

.size-note {
  text-align: center;
  color: #777;
  font-size: 13px;
  margin-top: 20px;
}

/* REVIEWS */

.reviews {
  padding: 90px 0;
  background: #f7f7f5;
}

.review-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.review-card {
  background: white;
  padding: 28px;
  border-radius: 14px;
}

.stars {
  margin-bottom: 17px;
  letter-spacing: 3px;
}

.review-card p {
  color: #555;
  margin-bottom: 25px;
}

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

.avatar {
  width: 38px;
  height: 38px;
  background: #eee;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
}

.customer small {
  display: block;
  color: #888;
}

/* FAQ */

.faq {
  padding: 90px 0;
}

.faq-list {
  max-width: 800px;
  margin: auto;
}

.faq-item {
  border-bottom: 1px solid #ddd;
}

.faq-question {
  width: 100%;
  padding: 22px 0;
  background: none;
  border: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  text-align: left;
  font-weight: 600;
}

.faq-answer {
  display: none;
  color: #777;
  font-size: 14px;
  padding-bottom: 20px;
}

.faq-item.open .faq-answer {
  display: block;
}

.faq-item.open .faq-question svg {
  transform: rotate(45deg);
}

/* ORDER */

.order-section {
  padding: 90px 0;
  background: #111;
  color: white;
}

.order-wrapper {
  display: grid;
  grid-template-columns: .9fr 1.1fr;
  gap: 70px;
  align-items: start;
}

.order-intro h2 {
  font-size: 45px;
  line-height: 1.05;
  letter-spacing: -2px;
  margin-bottom: 20px;
}

.order-intro p {
  color: #aaa;
}

.final-price {
  margin-top: 35px;
}

.final-price span {
  color: #aaa;
}

.final-price strong {
  display: block;
  font-size: 40px;
  margin-top: 4px;
}

.order-form {
  background: white;
  color: #111;
  padding: 30px;
  border-radius: 15px;
}

.input-group {
  margin-bottom: 17px;
}

.input-group label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 7px;
}

.input-group input,
.input-group textarea,
.input-group select {
  width: 100%;
  border: 1px solid #ddd;
  border-radius: 7px;
  padding: 13px;
  outline: none;
  background: white;
}

.input-group input:focus,
.input-group textarea:focus,
.input-group select:focus {
  border-color: #111;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 15px;
}

.submit-btn {
  width: 100%;
  padding: 16px;
  border: none;
  border-radius: 8px;
  background: #111;
  color: white;
  font-weight: 700;
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 10px;
  transition: .2s;
}

.form-security {
  text-align: center;
  font-size: 11px;
  color: #888;
  margin-top: 12px;
}

/* MODAL */

.modal {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.65);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: 20px;
}

.modal.show {
  display: flex;
}

.modal-content {
  background: white;
  color: #111;
  max-width: 430px;
  width: 100%;
  padding: 35px;
  border-radius: 15px;
  text-align: center;
}

.success-icon {
  width: 65px;
  height: 65px;
  background: #eee;
  border-radius: 50%;
  margin: 0 auto 20px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.modal-content p {
  color: #777;
  margin: 12px 0 25px;
}

/* FOOTER */

footer {
  background: #0a0a0a;
  color: white;
  padding: 45px 0;
}

.footer-content {
  text-align: center;
}

.footer-content p {
  color: #888;
  margin: 5px 0 20px;
}

.footer-content small {
  color: #555;
}

/* MOBILE CTA */

.mobile-cta {
  display: none;
}


/* RESPONSIVE */

@media (max-width: 900px) {

  .hero-grid,
  .product-grid,
  .order-wrapper {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .feature-grid {
    grid-template-columns: 1fr 1fr;
  }

  .review-grid {
    grid-template-columns: 1fr;
  }

  .hero-image img {
    height: 550px;
  }

  .product-photo img {
    height: 500px;
  }

}

@media (max-width: 600px) {

  body {
    padding-bottom: 75px;
  }

  .top-bar {
    font-size: 11px;
  }

  .nav {
    height: 62px;
  }

  .nav-btn {
    padding: 8px 13px;
    font-size: 12px;
  }

  .hero {
    padding: 25px 0 55px;
  }

  .hero-grid {
    gap: 30px;
  }

  .hero-image img {
    height: 440px;
  }

  .hero-content h1 {
    font-size: 43px;
    letter-spacing: -2px;
  }

  .hero-text {
    font-size: 15px;
  }

  .price {
    font-size: 31px;
  }

  .features,
  .product-section,
  .choice-section,
  .size-section,
  .reviews,
  .faq,
  .order-section {
    padding: 65px 0;
  }

  .section-heading h2 {
    font-size: 30px;
  }

  .feature-grid {
    grid-template-columns: 1fr;
  }

  .product-text h2 {
    font-size: 38px;
  }

  .product-photo img {
    height: 420px;
  }

  .choice-card {
    padding: 25px;
  }

  .review-grid {
    gap: 12px;
  }

  .order-intro h2 {
    font-size: 37px;
  }

  .form-row {
    grid-template-columns: 1fr;
    gap: 0;
  }

  .mobile-cta {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: white;
    padding: 10px 14px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: 0 -3px 15px rgba(0,0,0,.12);
    z-index: 999;
  }

  .mobile-cta small,
  .mobile-cta strong {
    display: block;
  }

  .mobile-cta small {
    font-size: 10px;
    color: #777;
  }

  .mobile-cta strong {
    font-size: 17px;
  }

  .mobile-cta a {
    background: #111;
    color: white;
    padding: 12px 17px;
    border-radius: 7px;
    font-size: 13px;
    font-weight: 700;
  }

}