/* ===== Reset & Base ===== */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Inter', sans-serif;
  background-color: #000;
  color: #fff;
  overflow-x: hidden;
}

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

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

strong {
  font-weight: 700;
}

.underline {
  text-decoration: underline;
  text-decoration-skip-ink: none;
}

/* ===== Top Bar ===== */
.top-bar {
  background-color: #860000;
  padding: 38px 40px;
  text-align: center;
}

.top-bar__text {
  font-size: clamp(16px, 2.2vw, 43px);
  font-weight: 800;
  letter-spacing: 0.02em;
  line-height: 1.3;
  color: #fff;
}

/* ===== Hero Section ===== */
.hero {
  position: relative;
  min-height: clamp(500px, 52vw, 950px);
  padding: clamp(40px, 4vw, 80px) clamp(20px, 4vw, 60px) clamp(40px, 3vw, 60px);
  overflow: hidden;
}

.hero__bg {
  position: absolute;
  top: 0;
  right: -10%;
  width: 93vw;
  height: 100%;
  pointer-events: none;
}

.hero__bg-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero__bg-gradient {
  position: absolute;
  inset: 0;
  background: linear-gradient(-90deg, rgba(0, 0, 0, 0) 53.46%, rgb(0, 0, 0) 93.6%);
}

.hero__content {
  position: relative;
  z-index: 1;
  max-width: 45vw;
}

.hero__title {
  font-size: clamp(24px, 2.9vw, 57px);
  font-weight: 400;
  line-height: 1.29;
  letter-spacing: -0.05em;
  margin-bottom: clamp(30px, 3vw, 60px);
}

.hero__body {
  font-size: clamp(16px, 1.8vw, 35px);
  font-weight: 400;
  line-height: 1.47;
  letter-spacing: -0.05em;
}

.hero__body p {
  margin-bottom: clamp(12px, 1.2vw, 24px);
}

.hero__body p:last-child {
  margin-bottom: 0;
}

/* ===== Product Section ===== */
.product {
  position: relative;
  background-color: #fff;
  min-height: clamp(400px, 40vw, 770px);
  display: flex;
  align-items: center;
  overflow: hidden;
}

.product__gradient-bar {
  position: absolute;
  left: 0;
  top: 0;
  width: clamp(120px, 18vw, 349px);
  height: 100%;
  background: linear-gradient(to bottom, #e8a049, #825a29);
}

.product__badge {
  position: relative;
  z-index: 1;
  flex-shrink: 0;
  width: clamp(200px, 30vw, 550px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding-left: clamp(20px, 3vw, 60px);
}

.product__badge-img {
  width: 100%;
  max-width: clamp(200px, 26vw, 500px);
  height: auto;
}

.product__info {
  position: relative;
  z-index: 1;
  padding: clamp(30px, 3vw, 60px) clamp(30px, 4vw, 80px) clamp(30px, 3vw, 60px) clamp(20px, 2vw, 40px);
  max-width: 50%;
  flex: 1;
}

.product__title {
  font-size: clamp(24px, 2.9vw, 57px);
  font-weight: 400;
  line-height: 1.29;
  letter-spacing: -0.05em;
  color: #000;
  margin-bottom: clamp(20px, 2vw, 40px);
}

.product__desc {
  font-size: clamp(16px, 1.8vw, 35px);
  font-weight: 400;
  line-height: 1.47;
  letter-spacing: -0.05em;
  color: #000;
  margin-bottom: clamp(12px, 1.2vw, 24px);
}

.product__desc:last-child {
  margin-bottom: 0;
}

/* ===== Dark Section ===== */
.dark-section {
  background-color: #000;
  padding: clamp(40px, 4vw, 80px) clamp(20px, 4vw, 60px);
  text-align: center;
}

.dark-section__title {
  font-size: clamp(22px, 2.9vw, 57px);
  font-weight: 400;
  line-height: 1.29;
  letter-spacing: -0.05em;
  color: #fff;
  margin-bottom: clamp(20px, 2vw, 40px);
}

.dark-section__body {
  font-size: clamp(14px, 1.7vw, 33px);
  font-weight: 400;
  line-height: 1.56;
  letter-spacing: -0.05em;
  color: rgba(255, 255, 255, 0.8);
  max-width: 54vw;
  margin: 0 auto;
}

/* ===== Pricing Section ===== */
.pricing {
  background-color: #000;
  padding: clamp(20px, 2vw, 40px) clamp(16px, 4vw, 60px) clamp(40px, 4vw, 80px);
  display: flex;
  justify-content: center;
}

.pricing__card {
  background-color: #fff;
  border-radius: clamp(30px, 3.1vw, 61px);
  padding: clamp(40px, 3.5vw, 70px) clamp(30px, 4vw, 80px);
  max-width: 1153px;
  width: 100%;
  text-align: center;
}

.pricing__old-price {
  font-size: clamp(18px, 2vw, 40px);
  font-weight: 400;
  line-height: 1.28;
  letter-spacing: -0.04em;
  color: #000;
  margin-bottom: clamp(10px, 1vw, 20px);
}

.pricing__strikethrough {
  text-decoration: line-through;
  color: #e40000;
}

.pricing__subtitle {
  font-size: clamp(18px, 2vw, 40px);
  font-weight: 600;
  line-height: 1.28;
  letter-spacing: -0.04em;
  color: #000;
  margin-bottom: clamp(10px, 1vw, 20px);
}

.pricing__price {
  font-size: clamp(48px, 6.5vw, 127px);
  font-weight: 700;
  line-height: 1.29;
  letter-spacing: -0.05em;
  color: #000;
  margin-bottom: clamp(5px, 0.5vw, 10px);
}

.pricing__green {
  color: #00a800;
}

.pricing__cash {
  font-size: clamp(18px, 2vw, 40px);
  font-weight: 400;
  line-height: 1.28;
  letter-spacing: -0.04em;
  color: #000;
  margin-bottom: clamp(20px, 2vw, 40px);
}

/* ===== Buttons ===== */
.btn {
  display: block;
  width: 100%;
  max-width: 873px;
  margin: 0 auto;
  padding: clamp(16px, 1.2vw, 24px) clamp(20px, 1.6vw, 32px);
  border-radius: 10px;
  font-family: 'Inter', sans-serif;
  font-size: clamp(16px, 1.8vw, 35px);
  font-weight: 600;
  line-height: 1.47;
  letter-spacing: -0.05em;
  text-align: center;
  color: #fff;
  cursor: pointer;
  border: none;
  transition: opacity 0.2s;
}

.btn:hover {
  opacity: 0.9;
}

.btn--green {
  background-color: #00a800;
  margin-bottom: 16px;
}

.btn--red {
  background-color: #e40000;
  max-width: 742px;
  font-size: clamp(14px, 1.5vw, 30px);
  padding: clamp(14px, 1vw, 20px) clamp(20px, 1.6vw, 32px);
  border-radius: 8.5px;
}

/* ===== Payment Method Section ===== */
.payment-method {
  background-color: #000;
  padding: clamp(20px, 2vw, 40px) clamp(16px, 4vw, 60px) clamp(40px, 4vw, 80px);
  display: flex;
  justify-content: center;
}

.payment-method__card {
  background-color: rgba(255, 255, 255, 0.4);
  border-radius: clamp(30px, 3.1vw, 61px);
  padding: clamp(40px, 3.5vw, 70px) clamp(30px, 4vw, 80px);
  max-width: 1153px;
  width: 100%;
}

.payment-method__title {
  font-size: clamp(22px, 2.75vw, 54px);
  font-weight: 700;
  line-height: 1.28;
  letter-spacing: -0.04em;
  color: #fff;
  margin-bottom: clamp(16px, 1.5vw, 30px);
}

.payment-method__body {
  font-size: clamp(16px, 2vw, 40px);
  font-weight: 400;
  line-height: 1.28;
  letter-spacing: -0.04em;
  color: #fff;
  margin-bottom: clamp(20px, 2vw, 40px);
}

.payment-method__body p {
  margin-bottom: 4px;
}

/* ===== Mobile Layout ===== */
@media (max-width: 900px) {
  .hero__content {
    max-width: 100%;
  }

  .hero__bg {
    right: -60%;
    opacity: 0.35;
  }

  .product {
    flex-direction: column;
    min-height: auto;
  }

  .product__gradient-bar {
    width: 100%;
    height: 180px;
    position: relative;
  }

  .product__badge {
    width: 100%;
    padding: 30px;
    justify-content: center;
    margin-top: -80px;
  }

  .product__badge-img {
    max-width: 300px;
  }

  .product__info {
    padding: 30px 24px;
    max-width: 100%;
  }

  .dark-section__body {
    max-width: 100%;
  }
}