/* CSS Variables */
:root {
  --font-size: 16px;

  /* Benefits Section Colors */
  --benefits-primary: #4d769c;
  --benefits-card-bg: #ffffff;
  --benefits-card-text: #222222;
  --benefits-number-bg: #4c4b4b;
  --benefits-gradient-orange: #ff9635;
  --benefits-gradient-red: #ea5e53;
  --benefits-icon-bg: #4d769c;
  --benefits-divider: rgba(255, 150, 53, 0.2);
  --benefits-secondary-bg: #fafafa;
}

/* Reset & Base Styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

/* Benefits Section */
.benefits-section {
  position: relative;
  width: 100%;
  background-color: var(--benefits-primary);
  overflow: hidden;
  padding: 8rem 1rem;
}

/* Background */

.benefits-section__background {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  overflow: hidden;
}

/* 右側にprimary, 左側にsecondary（左右対称） */
.benefits-section__background::before {
  content: '';
  position: absolute;
  right: 0;
  top: 28.125rem;
  width: 30%;
  height: 100%;
  background: var(--benefits-secondary-bg);
  z-index: -1;
}

.benefits-section__background::after {
  content: '';
  position: absolute;
  left: 0;
  top: 28.125rem;
  width: 70%;
  min-width: 728px;
  height: 100%;
  background: var(--benefits-primary);
  z-index: -1;
}

@media (max-width: 768px) {
  .benefits-section__background::before,
  .benefits-section__background::after {
    top: 15.125rem;
  }
  .benefits-section__background::after {
    width: calc(100% - 0.5rem);
    min-width: auto;
  }
}

/* Container */
.benefits-section__container {
  position: relative;
  max-width: 80rem;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 5rem;
}

/* Header */
.benefits-section__header {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 1.5rem;
  color: white;
  text-align: left;
}

.benefits-section__title {
  font-size: 6rem;
  line-height: 1;
  white-space: nowrap;
}

.benefits-section__subtitle {
  font-size: 2.875rem;
  line-height: 1.1;
}

.benefits-section__lead {
  font-size: 1.25rem;
  line-height: 1.6;
}

/* Grid */
.benefits-section__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
  width: 100%;
}

/* Card */
.benefits-section__card {
  position: relative;
  background-color: var(--benefits-card-bg);
  border: 0.078125rem solid white;
  border-radius: 1rem;
  overflow: hidden;
  box-shadow: 0 0.625rem 0.9375rem -0.1875rem rgba(0, 0, 0, 0.1), 0 0.25rem 0.375rem -0.25rem rgba(0, 0, 0, 0.1);
  display: flex;
  flex-direction: column;
}

/* Card Header */
.benefits-section__card-header {
  position: relative;
  padding: 2.5rem 2.5rem 1.5rem;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
}

.benefits-section__icon-container {
  width: 5rem;
  height: 5rem;
  background-color: var(--benefits-icon-bg);
  border-radius: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

.benefits-section__icon {
  width: 2.5rem;
  height: 2.5rem;
}

.benefits-section__number-badge {
  width: 9.5rem;
  height: 9.5rem;
  background-color: var(--benefits-number-bg);
  border-radius: 1rem;
  box-shadow: 0 1.25rem 1.5625rem -0.3125rem rgba(0, 0, 0, 0.1), 0 0.5rem 0.625rem -0.375rem rgba(0, 0, 0, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  transform: rotate(12deg);
  position: absolute;
  right: -1rem;
  top: -1.5rem;
}

.benefits-section__number {
  font-size: 2.25rem;
  line-height: 2.5rem;
  color: white;
}

/* Card Body */
.benefits-section__card-body {
  padding: 0 2.5rem 2rem;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  flex: 1;
}

.benefits-section__card-title {
  font-size: 1.875rem;
  line-height: 2.34375rem;
  color: var(--benefits-card-text);
}

.benefits-section__card-description {
  font-size: 1.25rem;
  line-height: 1.6;
  color: var(--benefits-card-text);
}

/* Items */
.benefits-section__items {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  padding-top: 1.5rem;
  border-top: 0.078125rem solid var(--benefits-divider);
}

.benefits-section__item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.benefits-section__item-icon {
  width: 2rem;
  height: 2rem;
  border-radius: 0.625rem;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.benefits-section__check-icon {
  width: 1.25rem;
  height: 1.25rem;
  stroke: var(--benefits-gradient-red);
  stroke-width: 0.15625rem;
}

.benefits-section__item-text {
  font-size: 1rem;
  line-height: 1.5;
  color: var(--benefits-card-text);
}

/* Card Footer */
.benefits-section__card-footer {
  height: 0.5rem;
  background: linear-gradient(to right, var(--benefits-gradient-orange), var(--benefits-gradient-red));
  border-bottom-left-radius: 1rem;
  border-bottom-right-radius: 1rem;
}

/* Pagination */
.benefits-section__pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
}

.benefits-section__pagination-line {
  width: 4rem;
  height: 0.125rem;
  background-color: white;
}

.benefits-section__pagination-dots {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.benefits-section__dot {
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 50%;
  background-color: var(--benefits-number-bg);
}

.benefits-section__dot--active {
  background-color: white;
}

.benefits-section__dot--placeholder {
  flex: 1;
  width: auto;
  min-width: 0.5rem;
  border-radius: 2.625rem;
}

/* Indicators */
.benefits-section__indicators {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
}

.benefits-section__indicator {
  width: 0.75rem;
  height: 0.75rem;
  border-radius: 50%;
  background-color: white;
}

/* Responsive Design */

/* PC (Desktop) */
@media (max-width: 1200px) {
  .benefits-section {
    padding: 6rem 1rem;
  }

  .benefits-section__container {
    gap: 4rem;
  }

  .benefits-section__title {
    font-size: 5rem;
  }

  .benefits-section__subtitle {
    font-size: 2.5rem;
  }
}

/* Tablet */
@media (max-width: 1024px) {
  .benefits-section {
    padding: 5rem 1rem;
  }

  .benefits-section__container {
    gap: 3.5rem;
  }

  .benefits-section__title {
    font-size: 4rem;
  }

  .benefits-section__subtitle {
    font-size: 2rem;
  }

  .benefits-section__lead {
    font-size: 1.125rem;
  }

  .benefits-section__grid {
    gap: 1.5rem;
  }

  .benefits-section__card-title {
    font-size: 1.5rem;
  }

  .benefits-section__card-description {
    font-size: 1.125rem;
  }
}

/* Middle (大型スマホ〜小型タブレット) */
@media (max-width: 768px) {
  .benefits-section {
    padding: 4rem 1rem;
  }

  .benefits-section__container {
    gap: 3rem;
  }

  .benefits-section__title {
    font-size: 3rem;
  }

  .benefits-section__subtitle {
    font-size: 1.75rem;
  }

  .benefits-section__lead {
    font-size: 1rem;
  }

  .benefits-section__grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .benefits-section__card-header {
    padding: 2rem 2rem 1rem;
  }

  .benefits-section__card-body {
    padding: 0 2rem 1.5rem;
  }

  .benefits-section__number-badge {
    width: 8rem;
    height: 8rem;
  }

  .benefits-section__number {
    font-size: 2rem;
  }
}

/* Medium */
@media (max-width: 600px) {
  .benefits-section {
    padding: 3rem 1rem;
  }

  .benefits-section__container {
    gap: 2.5rem;
  }

  .benefits-section__title {
    font-size: 2.5rem;
  }

  .benefits-section__subtitle {
    font-size: 1.5rem;
  }

  .benefits-section__lead {
    font-size: 0.9375rem;
  }

  .benefits-section__card-header {
    padding: 1.5rem 1.5rem 1rem;
  }

  .benefits-section__card-body {
    padding: 0 1.5rem 1.25rem;
  }

  .benefits-section__card-title {
    font-size: 1.375rem;
  }

  .benefits-section__card-description {
    font-size: 1rem;
  }

  .benefits-section__icon-container {
    width: 4rem;
    height: 4rem;
  }

  .benefits-section__icon {
    width: 2rem;
    height: 2rem;
  }

  .benefits-section__number-badge {
    width: 7rem;
    height: 7rem;
  }

  .benefits-section__number {
    font-size: 1.75rem;
  }
}

/* Small */
@media (max-width: 480px) {
  .benefits-section {
    padding: 2.5rem 1rem;
  }

  .benefits-section__container {
    gap: 2rem;
  }

  .benefits-section__header {
    gap: 1rem;
  }

  .benefits-section__title {
    font-size: 2rem;
    white-space: normal;
  }

  .benefits-section__subtitle {
    font-size: 1.25rem;
  }

  .benefits-section__lead {
    font-size: 0.875rem;
  }

  .benefits-section__grid {
    gap: 1.25rem;
  }

  .benefits-section__card-header {
    padding: 1.25rem 1.25rem 0.75rem;
  }

  .benefits-section__card-body {
    padding: 0 1.25rem 1rem;
    gap: 1rem;
  }

  .benefits-section__card-title {
    font-size: 1.25rem;
    line-height: 1.4;
  }

  .benefits-section__card-description {
    font-size: 0.9375rem;
    line-height: 1.6;
  }

  .benefits-section__items {
    gap: 0.625rem;
    padding-top: 1rem;
  }

  .benefits-section__item-text {
    font-size: 0.9375rem;
  }

  .benefits-section__icon-container {
    width: 3.5rem;
    height: 3.5rem;
  }

  .benefits-section__icon {
    width: 1.75rem;
    height: 1.75rem;
  }

  .benefits-section__number-badge {
    width: 6rem;
    height: 6rem;
    right: -0.5rem;
    top: -1rem;
  }

  .benefits-section__number {
    font-size: 1.5rem;
  }

  .benefits-section__pagination-line {
    width: 3rem;
  }

  .benefits-section__pagination-dots {
    gap: 0.375rem;
  }

  .benefits-section__indicators {
    gap: 0.5rem;
  }

  .benefits-section__indicator {
    width: 0.625rem;
    height: 0.625rem;
  }
}