/* ==========================================================================
   蘭のすずひろ - 胡蝶蘭のサブスク LP
   Design system adapted from DESIGN.md (Lindt de Matcha reference):
   ゆったりした余白 / 明確なタイポグラフィのジャンプ率 / 上質・洗練されたトーン
   アクセントカラーのみ、素材写真の胡蝶蘭の花色（モーブ/プラム）に調整
   ========================================================================== */

/* --- Reset --- */
*, *::before, *::after { box-sizing: border-box; }
html, body, h1, h2, h3, h4, p, ul, ol, li, dl, dt, dd, figure { margin: 0; padding: 0; }
ul, ol { list-style: none; }
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
button { font: inherit; background: none; border: none; cursor: pointer; padding: 0; }

/* --- Design tokens --- */
:root{
  /* Color: base（DESIGN.mdを踏襲） */
  --color-bg:        #FFFFFF;
  --color-bg-soft:   #F7F4F2;
  --color-text:      #3A3835;
  --color-heading:   #1C1A19;
  --color-border:    #E7E1DC;

  /* Color: accent（胡蝶蘭の花色に合わせて調整） */
  --color-accent:      #8C4A68;
  --color-accent-dark: #6E3752;
  --color-accent-soft: #F5E9EF;
  --color-gold:        #B08D57;

  /* Typography */
  --font-serif: "Noto Serif JP", "游明朝", "Yu Mincho", serif;
  --font-sans: "游ゴシック体", "Yu Gothic", "Hiragino Kaku Gothic ProN", "Noto Sans JP", sans-serif;

  /* Spacing（ゆったりとした余白） */
  --section-py: clamp(64px, 10vw, 140px);
  --container-max: 1180px;
  --container-px: clamp(20px, 6vw, 80px);

  /* Motion */
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

html { scroll-behavior: smooth; }

body{
  font-family: var(--font-sans);
  color: var(--color-text);
  background: var(--color-bg);
  font-size: 16px;
  line-height: 1.9;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* --- Layout helpers --- */
.container{
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-px);
}
.container--narrow{ max-width: 860px; }

.section{ padding-block: var(--section-py); }

.u-sp-only{ display: none; }
.u-pc-only{ display: inline; }
@media (max-width: 767px){
  .u-sp-only{ display: inline; }
  .u-pc-only{ display: none; }
}

/* --- Typography rhythm --- */
.eyebrow{
  font-size: 13px;
  letter-spacing: 0.2em;
  font-weight: 600;
  color: var(--color-accent);
  margin-bottom: 16px;
}
.eyebrow--center{ text-align: center; }

.section__title{
  font-family: var(--font-serif);
  font-size: clamp(26px, 4vw, 40px);
  font-weight: 600;
  line-height: 1.5;
  color: var(--color-heading);
  letter-spacing: 0.03em;
  margin-bottom: 24px;
}
.section__title--center{ text-align: center; }

.section__lead{
  text-align: center;
  max-width: 560px;
  margin-inline: auto;
  margin-bottom: 56px;
  color: var(--color-text);
}

/* ==========================================================================
   Header
   ========================================================================== */
.l-header{
  position: fixed;
  inset-inline: 0;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,0.9);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s var(--ease);
}
.l-header__inner{
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-px);
  height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.logo{
  font-family: var(--font-serif);
  font-size: 19px;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--color-heading);
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}
.logo__sub{
  font-family: var(--font-sans);
  font-size: 10px;
  letter-spacing: 0.18em;
  color: var(--color-accent);
  font-weight: 500;
  margin-top: 2px;
}

.g-nav{ margin-left: auto; }
.g-nav__list{
  display: flex;
  gap: 40px;
}
.g-nav__list a{
  font-size: 14px;
  letter-spacing: 0.04em;
  position: relative;
  padding-bottom: 4px;
}
.g-nav__list a::after{
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: 0;
  height: 1px;
  background: var(--color-accent);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.3s var(--ease);
}
.g-nav__list a:hover::after{ transform: scaleX(1); transform-origin: left; }

.g-nav__cta{ margin-left: 16px; }

.nav-toggle{
  display: none;
  width: 32px; height: 24px;
  position: relative;
}
.nav-toggle span{
  position: absolute; left: 0; right: 0; height: 1px;
  background: var(--color-heading);
  transition: transform 0.3s var(--ease), opacity 0.3s var(--ease);
}
.nav-toggle span:nth-child(1){ top: 0; }
.nav-toggle span:nth-child(2){ top: 11px; }
.nav-toggle span:nth-child(3){ top: 22px; }
.nav-toggle[aria-expanded="true"] span:nth-child(1){ transform: translateY(11px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2){ opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3){ transform: translateY(-11px) rotate(-45deg); }

@media (max-width: 900px){
  .g-nav{
    position: fixed;
    top: 76px; left: 0; right: 0;
    background: var(--color-bg);
    border-top: 1px solid var(--color-border);
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.35s var(--ease);
  }
  .g-nav.is-open{ max-height: 400px; }
  .g-nav__list{
    flex-direction: column;
    gap: 0;
    padding: 8px var(--container-px) 24px;
  }
  .g-nav__list a{
    display: block;
    padding: 16px 0;
    border-bottom: 1px solid var(--color-border);
  }
  .g-nav__cta{ display: none; }
  .nav-toggle{ display: block; }
}

/* ==========================================================================
   Hero
   ========================================================================== */
.hero{
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}
.hero__media{
  position: absolute;
  inset: 0;
}
.hero__media img{
  width: 100%; height: 100%;
  object-fit: cover;
  transform: scale(1.05);
}
.hero__overlay{
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(28,26,25,0.35) 0%, rgba(28,26,25,0.15) 40%, rgba(28,26,25,0.55) 100%);
}
.hero__content{
  position: relative;
  z-index: 1;
  text-align: center;
  color: #fff;
  padding-inline: 24px;
  max-width: 780px;
}
.hero__content .eyebrow{
  color: #fff;
  opacity: 0.9;
}
.hero__title{
  font-family: var(--font-serif);
  font-size: clamp(34px, 6.5vw, 60px);
  font-weight: 600;
  line-height: 1.4;
  letter-spacing: 0.04em;
  margin-bottom: 28px;
  text-shadow: 0 2px 20px rgba(0,0,0,0.25);
}
.hero__lead{
  font-size: clamp(14px, 1.6vw, 16px);
  line-height: 1.9;
  margin-bottom: 40px;
  opacity: 0.95;
}
.hero__scroll{
  position: absolute;
  bottom: 32px; left: 50%;
  transform: translateX(-50%);
  z-index: 1;
  color: #fff;
  font-size: 11px;
  letter-spacing: 0.2em;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}
.hero__scroll span{
  width: 1px; height: 40px;
  background: rgba(255,255,255,0.6);
  overflow: hidden;
  position: relative;
}
.hero__scroll span::after{
  content: "";
  position: absolute;
  top: -100%; left: 0; right: 0; height: 100%;
  background: #fff;
  animation: scrollLine 2s infinite var(--ease);
}
@keyframes scrollLine{
  0%{ top: -100%; }
  60%{ top: 100%; }
  100%{ top: 100%; }
}

/* ==========================================================================
   Buttons
   ========================================================================== */
.btn{
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 18px 48px;
  font-size: 14px;
  letter-spacing: 0.1em;
  border-radius: 999px;
  transition: background 0.3s var(--ease), color 0.3s var(--ease), border-color 0.3s var(--ease), transform 0.3s var(--ease);
  white-space: nowrap;
}
.btn--primary{
  background: var(--color-accent);
  color: #fff;
}
.btn--primary:hover{
  background: var(--color-accent-dark);
  transform: translateY(-2px);
}
.btn--outline{
  border: 1px solid var(--color-heading);
  color: var(--color-heading);
}
.btn--outline:hover{
  background: var(--color-heading);
  color: #fff;
}
.btn--small{
  padding: 12px 28px;
  font-size: 13px;
}

/* ==========================================================================
   Campaign banner
   ========================================================================== */
.campaign{
  background: var(--color-accent);
  padding-block: 40px;
}
.campaign__inner{ text-align: center; }
.campaign__label{
  font-size: 12px;
  letter-spacing: 0.25em;
  color: rgba(255,255,255,0.75);
  margin-bottom: 12px;
}
.campaign__text{
  font-size: clamp(16px, 2.2vw, 19px);
  line-height: 1.9;
  color: #fff;
  letter-spacing: 0.02em;
}
.campaign__text strong{
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: 1.1em;
}

/* ==========================================================================
   Merit
   ========================================================================== */
.merit{ background: var(--color-bg); }

.merit__grid{
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--color-border);
  border: 1px solid var(--color-border);
}

.merit-card{
  background: var(--color-bg);
  padding: 48px 36px;
  text-align: center;
}
.merit-card__icon{
  display: flex;
  align-items: center;
  justify-content: center;
  width: 56px; height: 56px;
  margin: 0 auto 24px;
  color: var(--color-accent);
}
.merit-card__icon svg{ width: 100%; height: 100%; }
.merit-card h3{
  font-size: 16px;
  font-weight: 600;
  color: var(--color-heading);
  margin-bottom: 14px;
  letter-spacing: 0.02em;
}
.merit-card p{
  font-size: 13.5px;
  color: var(--color-text);
  line-height: 1.9;
}

@media (max-width: 900px){
  .merit__grid{ grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 560px){
  .merit__grid{ grid-template-columns: 1fr; }
  .merit-card{ padding: 40px 24px; }
}

/* ==========================================================================
   Plan summary + Price table
   ========================================================================== */
.plan{ background: var(--color-bg-soft); }

.plan-summary{
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  max-width: 720px;
  margin: 0 auto 88px;
}
.plan-summary__card{
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: 4px;
  padding: 36px 32px;
  text-align: center;
}
.plan-summary__name{
  font-family: var(--font-serif);
  font-size: 19px;
  font-weight: 600;
  color: var(--color-heading);
  margin-bottom: 10px;
  letter-spacing: 0.03em;
}
.plan-summary__desc{
  font-size: 13.5px;
  color: var(--color-text);
  margin-bottom: 20px;
}
.plan-summary__off{
  font-size: 13px;
  color: var(--color-text);
}
.plan-summary__off span{
  font-family: var(--font-serif);
  font-size: 26px;
  font-weight: 600;
  color: var(--color-accent);
  margin: 0 2px;
}

.price-table__heading{
  font-family: var(--font-serif);
  font-size: 18px;
  font-weight: 600;
  color: var(--color-heading);
  text-align: center;
  margin-bottom: 32px;
  letter-spacing: 0.03em;
}

.price-table__wrap{
  overflow-x: auto;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: 4px;
}
.price-table{
  width: 100%;
  border-collapse: collapse;
  min-width: 640px;
}
.price-table th,
.price-table td{
  padding: 18px 24px;
  text-align: center;
  font-size: 14.5px;
  border-bottom: 1px solid var(--color-border);
  white-space: nowrap;
}
.price-table thead th{
  background: var(--color-accent-soft);
  color: var(--color-accent-dark);
  font-weight: 600;
  font-size: 13px;
  letter-spacing: 0.03em;
}
.price-table thead th span{
  display: block;
  font-size: 11px;
  font-weight: 500;
  margin-top: 4px;
  opacity: 0.85;
}
.price-table tbody th,
.price-table td:first-child{
  text-align: left;
  font-weight: 500;
  color: var(--color-heading);
}
.price-table tbody tr:last-child td{ border-bottom: none; }
.price-table td.is-highlight{
  color: var(--color-accent);
  font-weight: 700;
  font-size: 16px;
}

.plan__note{
  margin-top: 32px;
  text-align: center;
  font-size: 13px;
  color: #6E6A66;
  letter-spacing: 0.02em;
}

@media (max-width: 700px){
  .plan-summary{ grid-template-columns: 1fr; }

  .price-table__wrap{ overflow: visible; border: none; background: none; }
  .price-table{ min-width: 0; display: block; }
  .price-table thead{ display: none; }
  .price-table tbody{ display: block; }
  .price-table tr{
    display: block;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: 4px;
    padding: 8px 20px;
    margin-bottom: 16px;
  }
  .price-table td{
    display: flex;
    justify-content: space-between;
    align-items: center;
    text-align: right;
    padding: 12px 0;
    white-space: normal;
  }
  .price-table td::before{
    content: attr(data-label);
    font-size: 12px;
    color: #8A8681;
    font-weight: 500;
  }
  .price-table td:first-child{
    justify-content: center;
    font-family: var(--font-serif);
    font-size: 16px;
    font-weight: 600;
    border-bottom: 1px solid var(--color-border);
  }
  .price-table td:first-child::before{ content: none; }
  .price-table td.is-highlight{ font-size: 17px; }
}

/* ==========================================================================
   Flow
   ========================================================================== */
.flow{ background: var(--color-bg-soft); }

.flow__list{
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 48px;
  counter-reset: flow;
}
.flow__item{
  text-align: center;
  position: relative;
}
.flow__item:not(:last-child)::after{
  content: "";
  position: absolute;
  top: 34px;
  left: calc(50% + 60px);
  right: calc(-50% + 60px);
  height: 1px;
  background: var(--color-border);
}
.flow__num{
  display: flex;
  align-items: center;
  justify-content: center;
  width: 68px; height: 68px;
  margin-inline: auto;
  margin-bottom: 24px;
  border-radius: 50%;
  background: var(--color-bg);
  border: 1px solid var(--color-accent);
  color: var(--color-accent);
  font-family: var(--font-serif);
  font-size: 20px;
  font-weight: 600;
  position: relative;
  z-index: 1;
}
.flow__item h3{
  font-size: 17px;
  font-weight: 600;
  color: var(--color-heading);
  margin-bottom: 12px;
}
.flow__item p{
  font-size: 14px;
  color: var(--color-text);
  line-height: 1.85;
}

@media (max-width: 767px){
  .flow__list{ grid-template-columns: 1fr; gap: 40px; }
  .flow__item:not(:last-child)::after{ display: none; }
}

/* ==========================================================================
   Notice
   ========================================================================== */
.notice{ background: var(--color-bg); }

.notice__lead{
  text-align: center;
  font-size: 16px;
  color: var(--color-text);
  margin-bottom: 40px;
}
.notice__lead a{
  color: var(--color-accent);
  font-weight: 600;
  border-bottom: 1px solid currentColor;
}

.notice__list{
  border-top: 1px solid var(--color-border);
}
.notice__list li{
  position: relative;
  padding: 22px 8px 22px 28px;
  font-size: 14.5px;
  line-height: 1.9;
  color: var(--color-text);
  border-bottom: 1px solid var(--color-border);
}
.notice__list li::before{
  content: "";
  position: absolute;
  left: 8px;
  top: 32px;
  width: 6px;
  height: 1px;
  background: var(--color-accent);
}

.notice__cta{
  margin-top: 48px;
  text-align: center;
}

/* ==========================================================================
   Shop / Company
   ========================================================================== */
.shop{ background: var(--color-bg-soft); }

.shop__table{
  border-top: 1px solid var(--color-border);
}
.shop__row{
  display: grid;
  grid-template-columns: 160px 1fr;
  gap: 24px;
  padding: 22px 0;
  border-bottom: 1px solid var(--color-border);
}
.shop__row dt{
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--color-accent);
  font-weight: 600;
}
.shop__row dd{
  font-size: 15px;
  color: var(--color-text);
}
.u-note{ font-size: 12px; color: #918C87; }

@media (max-width: 600px){
  .shop__row{ grid-template-columns: 1fr; gap: 6px; }
}

/* ==========================================================================
   Footer
   ========================================================================== */
.l-footer{
  background: var(--color-heading);
  color: #fff;
  padding-block: 72px 40px;
  text-align: center;
}
.l-footer__logo{
  font-family: var(--font-serif);
  font-size: 20px;
  letter-spacing: 0.1em;
  margin-bottom: 32px;
}
.l-footer__nav ul{
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 32px;
  margin-bottom: 48px;
}
.l-footer__nav a{
  font-size: 13px;
  opacity: 0.75;
  letter-spacing: 0.04em;
  transition: opacity 0.3s var(--ease);
}
.l-footer__nav a:hover{ opacity: 1; }
.l-footer__copy{
  font-size: 11px;
  opacity: 0.5;
  letter-spacing: 0.05em;
}