/**
 * Social Lunch Landing Page Styles
 * 
 * Theme: "A Seat at Our Table" — 日本旅行の休憩所
 * 
 * Design Principles (from spec):
 * - 呼吸できる余白: セクション間8rem以上
 * - 1カラム基調: デスクトップでも1カラム中心
 * - 縦スクロールのみ: 横スクロールなし（落ち着き）
 * - 丸みを多用: 円形 or 大きな角丸
 * - 中央寄せ: 落ち着き、安定感
 * - 狭いコンテナ: 最大960px（親密感）
 */

/* ========================================
   CSS VARIABLES
======================================== */
:root {
  /* Colors - Terracotta Warmth */
  --sl-primary: #B8604A;
  --sl-primary-dark: #9A4F3D;
  --sl-accent: #D4A574;
  --sl-bg: #FAF6F0;
  --sl-text: #3D2E24;
  --sl-text-light: #6B5B4F;
  --sl-white: #FFFFFF;
  
  /* Typography */
  --sl-font: 'Lora', Georgia, serif;
  --sl-font-h1: 2rem;
  --sl-font-h2: 1.75rem;
  --sl-font-body: 1rem;
  --sl-line-height: 1.7;
  
  /* Spacing - generous */
  --sl-section-gap: 4rem;
  --sl-element-gap: 1.5rem;
  --sl-container-padding: 1.25rem;
  
  /* Layout - narrow for intimacy */
  --sl-container-max: 960px;
  --sl-container-narrow: 700px;
  --sl-container-text: 600px;
  
  /* Effects - soft, warm */
  --sl-radius: 16px;
  --sl-radius-lg: 24px;
  --sl-radius-round: 50%;
  --sl-shadow: 0 4px 24px rgba(61, 46, 36, 0.08);
  --sl-transition: 0.25s ease;
}

/* Desktop overrides */
@media (min-width: 1024px) {
  :root {
    --sl-font-h1: 3rem;
    --sl-font-h2: 2.25rem;
    --sl-font-body: 1.125rem;
    --sl-section-gap: 8rem;
    --sl-element-gap: 2.5rem;
    --sl-container-padding: 2rem;
  }
}

/* ========================================
   BASE STYLES
======================================== */
.sl-section {
  padding: var(--sl-section-gap) 0;
  background-color: var(--sl-bg);
}

.sl-container {
  max-width: var(--sl-container-max);
  margin: 0 auto;
  padding: 0 var(--sl-container-padding);
}

.sl-container--narrow {
  max-width: var(--sl-container-narrow);
}

.sl-container--text {
  max-width: var(--sl-container-text);
}

.sl-section__title {
  font-family: var(--sl-font);
  font-size: var(--sl-font-h2);
  font-weight: 600;
  color: var(--sl-text);
  margin-bottom: var(--sl-element-gap);
  line-height: 1.3;
  text-align: center;
}

/* ========================================
   CTA BUTTON
======================================== */
.sl-cta {
  display: inline-block;
  background-color: var(--sl-primary);
  color: var(--sl-white);
  font-family: var(--sl-font);
  font-weight: 600;
  font-size: var(--sl-font-body);
  padding: 1rem 2.5rem;
  border: none;
  border-radius: var(--sl-radius);
  cursor: pointer;
  transition: all var(--sl-transition);
  box-shadow: 0 4px 16px rgba(184, 96, 74, 0.3);
  text-decoration: none;
}

.sl-cta:hover {
  background-color: var(--sl-primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(184, 96, 74, 0.4);
}

.sl-cta--large {
  padding: 1.25rem 3rem;
  font-size: 1.125rem;
}

.sl-section__cta {
  text-align: center;
  margin-top: var(--sl-element-gap);
}

/* ========================================
   HERO SECTION
   - 縦長画像対応
   - テキスト左/下配置
======================================== */
.sl-hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 2rem var(--sl-container-padding);
  padding-bottom: 6rem;
  overflow: hidden;
}

.sl-hero__background {
  position: absolute;
  inset: 0;
  z-index: 1;
}

.sl-hero__image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
}

.sl-hero__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    180deg,
    rgba(61, 46, 36, 0.1) 0%,
    rgba(61, 46, 36, 0.5) 50%,
    rgba(61, 46, 36, 0.8) 100%
  );
}

.sl-hero__content {
  position: relative;
  z-index: 2;
  max-width: 500px;
  text-align: center;
  margin: 0 auto 2rem;
}

.sl-hero__title {
  font-family: var(--sl-font);
  font-size: var(--sl-font-h1);
  font-weight: 700;
  color: var(--sl-white);
  line-height: 1.2;
  margin-bottom: 0.75rem;
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

.sl-hero__subtitle {
  font-size: 1.25rem;
  color: var(--sl-accent);
  font-style: italic;
  margin-bottom: 0.5rem;
}

.sl-hero__description {
  font-size: 1rem;
  color: var(--sl-white);
  opacity: 0.9;
  margin-bottom: 1.5rem;
  line-height: 1.6;
}

.sl-hero__availability {
  display: inline-block;
  background: linear-gradient(135deg, rgba(255,255,255,0.95) 0%, rgba(250,246,240,0.95) 100%);
  color: var(--sl-primary);
  font-weight: 600;
  font-size: 0.9rem;
  padding: 0.6rem 1.25rem;
  border-radius: var(--sl-radius);
  margin-bottom: 1.5rem;
  box-shadow: 0 4px 16px rgba(0,0,0,0.15);
  animation: pulse-gentle 2s ease-in-out infinite;
}

@keyframes pulse-gentle {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.02); }
}

/* Trust Badges */
.sl-hero__badges {
  position: relative;
  z-index: 2;
  display: flex;
  justify-content: center;
  gap: 1.5rem;
  flex-wrap: wrap;
  padding: 1rem 1.5rem;
  background: rgba(255, 255, 255, 0.12);
  backdrop-filter: blur(8px);
  border-radius: var(--sl-radius);
  max-width: 500px;
  margin: 0 auto;
}

.sl-badge {
  display: flex;
  flex-direction: column;
  align-items: center;
  color: var(--sl-white);
}

.sl-badge__value {
  font-size: 1.25rem;
  font-weight: 700;
}

.sl-badge__label {
  font-size: 0.75rem;
  opacity: 0.8;
}

/* Photo Credit */
.sl-hero__photo-credit {
  position: absolute;
  bottom: 1rem;
  right: 1rem;
  z-index: 3;
  font-size: 0.7rem;
  color: var(--sl-white);
  opacity: 0.6;
  background: rgba(0, 0, 0, 0.3);
  padding: 0.25rem 0.5rem;
  border-radius: 4px;
}

/* Desktop Hero */
@media (min-width: 1024px) {
  .sl-hero {
    min-height: 90vh;
    flex-direction: row;
    align-items: center;
    justify-content: flex-start;
    padding: 4rem 5%;
  }
  
  .sl-hero__overlay {
    background: linear-gradient(
      90deg,
      rgba(61, 46, 36, 0.85) 0%,
      rgba(61, 46, 36, 0.5) 40%,
      rgba(61, 46, 36, 0.1) 70%,
      transparent 100%
    );
  }
  
  .sl-hero__content {
    text-align: left;
    margin: 0;
    max-width: 480px;
  }
  
  .sl-hero__image {
    object-position: right center;
  }
  
  .sl-hero__badges {
    position: absolute;
    bottom: 3rem;
    left: 5%;
    margin: 0;
    justify-content: flex-start;
  }
  
  .sl-hero__photo-credit {
    bottom: 1.5rem;
    right: 2rem;
  }
}

/* ========================================
   CONCEPT SECTION
   - 1カラム中央寄せ
   - 画像なし、テキストに集中
   - 休憩所ボックスを目立たせる
======================================== */
.sl-concept {
  text-align: center;
}

.sl-concept .sl-container {
  max-width: var(--sl-container-narrow);
}

.sl-concept__intro {
  font-size: 1.25rem;
  color: var(--sl-text-light);
  margin-bottom: 1.5rem;
}

/* 休憩所メッセージ - 目立つボックス */
.sl-concept__rest-stop {
  background: linear-gradient(135deg, rgba(184, 96, 74, 0.1) 0%, rgba(212, 165, 116, 0.1) 100%);
  border-left: 4px solid var(--sl-primary);
  padding: 1.5rem 2rem;
  border-radius: 0 var(--sl-radius) var(--sl-radius) 0;
  margin: 2rem 0;
  font-size: 1.125rem;
  color: var(--sl-text);
  line-height: 1.8;
  text-align: left;
}

.sl-concept__lead {
  font-weight: 600;
  margin: 2rem 0 1rem;
  text-align: left;
}

.sl-concept__list {
  list-style: none;
  padding: 0;
  margin: 0 0 1.5rem 0;
  text-align: left;
}

.sl-concept__list li {
  position: relative;
  padding-left: 1.75rem;
  margin-bottom: 0.75rem;
  line-height: 1.7;
}

.sl-concept__list li::before {
  content: "•";
  position: absolute;
  left: 0.5rem;
  color: var(--sl-primary);
  font-weight: bold;
  font-size: 1.25rem;
}

.sl-concept__closing {
  font-size: 1.125rem;
  font-style: italic;
  color: var(--sl-text);
  margin: 2rem 0;
  line-height: 1.8;
}

/* 旅の話を聞かせて */
.sl-concept__share-story {
  background: rgba(212, 165, 116, 0.2);
  padding: 1.25rem 1.5rem;
  border-radius: var(--sl-radius);
  font-style: italic;
  color: var(--sl-text-light);
  margin-top: 1.5rem;
}

/* Hide concept image on this design */
.sl-concept__image {
  display: none;
}

.sl-concept__grid {
  display: block;
}

/* ========================================
   YOUR LUNCH TIMELINE
   - 縦型タイムライン（横スクロールなし）
   - 左に線 + 円形番号
======================================== */
.sl-your-lunch {
  background: var(--sl-white);
}

.sl-timeline {
  max-width: var(--sl-container-narrow);
  margin: 0 auto;
  position: relative;
  padding-left: 3rem;
}

/* Vertical line */
.sl-timeline::before {
  content: "";
  position: absolute;
  left: 1rem;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(180deg, var(--sl-accent), var(--sl-primary));
  border-radius: 1px;
}

.sl-timeline__item {
  position: relative;
  background: var(--sl-bg);
  border-radius: var(--sl-radius-lg);
  overflow: hidden;
  margin-bottom: 2rem;
  box-shadow: var(--sl-shadow);
}

.sl-timeline__item:last-child {
  margin-bottom: 0;
}

.sl-timeline__image {
  width: 100%;
  height: 200px;
  overflow: hidden;
}

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

.sl-timeline__content {
  padding: 1.5rem;
}

.sl-timeline__number {
  position: absolute;
  left: -3rem;
  top: 1.5rem;
  width: 2rem;
  height: 2rem;
  background: var(--sl-primary);
  color: var(--sl-white);
  border-radius: var(--sl-radius-round);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.875rem;
  box-shadow: 0 2px 8px rgba(184, 96, 74, 0.3);
}

.sl-timeline__time {
  display: inline-block;
  font-size: 0.75rem;
  color: var(--sl-text-light);
  background: rgba(212, 165, 116, 0.2);
  padding: 0.25rem 0.75rem;
  border-radius: 2rem;
  margin-bottom: 0.5rem;
}

.sl-timeline__title {
  font-family: var(--sl-font);
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: var(--sl-text);
}

.sl-timeline__desc {
  font-size: 0.95rem;
  color: var(--sl-text-light);
  line-height: 1.6;
  margin: 0;
}

/* Desktop timeline */
@media (min-width: 768px) {
  .sl-timeline {
    padding-left: 4rem;
  }
  
  .sl-timeline::before {
    left: 1.5rem;
  }
  
  .sl-timeline__number {
    left: -4rem;
    width: 2.5rem;
    height: 2.5rem;
  }
  
  .sl-timeline__item {
    display: grid;
    grid-template-columns: 280px 1fr;
  }
  
  .sl-timeline__image {
    height: auto;
  }
}

/* ========================================
   WHO JOINS SECTION
   - 円形アイコン
   - 3カード横並び
======================================== */
.sl-who-joins__intro {
  text-align: center;
  font-size: 1.125rem;
  color: var(--sl-text-light);
  margin-bottom: 2.5rem;
  max-width: var(--sl-container-text);
  margin-left: auto;
  margin-right: auto;
}

.sl-guests {
  display: grid;
  gap: 1.5rem;
  max-width: var(--sl-container-max);
  margin: 0 auto;
}

@media (min-width: 768px) {
  .sl-guests {
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
  }
}

.sl-guest {
  background: var(--sl-white);
  padding: 2rem 1.5rem;
  border-radius: var(--sl-radius-lg);
  box-shadow: var(--sl-shadow);
  text-align: center;
}

.sl-guest__header {
  margin-bottom: 0.5rem;
}

.sl-guest__name {
  display: block;
  font-weight: 600;
  color: var(--sl-text);
  font-size: 1.125rem;
}

.sl-guest__country {
  font-size: 0.875rem;
  color: var(--sl-text-light);
}

.sl-guest__type {
  display: inline-block;
  font-size: 0.75rem;
  color: var(--sl-white);
  background: var(--sl-primary);
  padding: 0.25rem 0.75rem;
  border-radius: 2rem;
  margin-bottom: 1rem;
}

.sl-guest__quote {
  font-style: italic;
  color: var(--sl-text);
  line-height: 1.7;
  margin: 0;
  position: relative;
  padding: 0 0.5rem;
}

.sl-guest__quote::before {
  content: """;
  font-size: 3rem;
  color: var(--sl-accent);
  opacity: 0.5;
  position: absolute;
  top: -1rem;
  left: -0.5rem;
  font-family: Georgia, serif;
}

/* ========================================
   MEET HOSTS SECTION
   - 写真大きく円形
   - テキスト短め中央寄せ
======================================== */
.sl-meet-hosts {
  background: var(--sl-white);
  text-align: center;
}

.sl-meet-hosts .sl-container {
  max-width: var(--sl-container-narrow);
}

.sl-meet-hosts__intro {
  font-size: 1.5rem;
  font-style: italic;
  color: var(--sl-primary);
  margin-bottom: 2rem;
}

.sl-meet-hosts__image {
  margin: 2.5rem auto;
  max-width: 400px;
}

.sl-meet-hosts__image img {
  width: 100%;
  height: auto;
  border-radius: var(--sl-radius-lg);
  box-shadow: var(--sl-shadow);
}

.sl-meet-hosts__description {
  color: var(--sl-text-light);
  line-height: 1.8;
  max-width: var(--sl-container-text);
  margin: 0 auto;
}

.sl-meet-hosts__grid {
  display: block;
}

.sl-meet-hosts__content {
  order: 1;
}

/* ========================================
   VOICES SECTION
   - 1カラム縦積み
   - 大きな引用符
======================================== */
.sl-reviews {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  max-width: var(--sl-container-text);
  margin: 0 auto 2.5rem;
}

.sl-review {
  background: var(--sl-white);
  padding: 2rem;
  border-radius: var(--sl-radius-lg);
  box-shadow: var(--sl-shadow);
  margin: 0;
  position: relative;
}

.sl-review::before {
  content: """;
  font-size: 4rem;
  color: var(--sl-accent);
  opacity: 0.3;
  position: absolute;
  top: 0.5rem;
  left: 1rem;
  font-family: Georgia, serif;
  line-height: 1;
}

.sl-review__quote {
  font-size: 1.125rem;
  font-style: italic;
  line-height: 1.8;
  margin-bottom: 1rem;
  padding-left: 1.5rem;
}

.sl-review__author {
  display: flex;
  flex-direction: column;
  padding-left: 1.5rem;
}

.sl-review__name {
  font-weight: 600;
  color: var(--sl-text);
}

.sl-review__location {
  font-size: 0.875rem;
  color: var(--sl-text-light);
}

/* Stats bar - subtle */
.sl-stats {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 2rem;
  padding: 1.5rem;
  background: var(--sl-white);
  border-radius: var(--sl-radius);
  box-shadow: var(--sl-shadow);
  max-width: var(--sl-container-text);
  margin: 0 auto;
}

.sl-stat {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.sl-stat__value {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--sl-primary);
}

.sl-stat__label {
  font-size: 0.8rem;
  color: var(--sl-text-light);
}

/* ========================================
   DETAILS SECTION
   - 情報密度低め
   - 2列グリッド
======================================== */
.sl-details .sl-container {
  max-width: 800px;
}

.sl-facts-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
  margin-bottom: 2rem;
}

@media (min-width: 768px) {
  .sl-facts-grid {
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
  }
}

.sl-fact {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 1.25rem 1rem;
  background: var(--sl-white);
  border-radius: var(--sl-radius);
  box-shadow: var(--sl-shadow);
}

.sl-fact__label {
  font-size: 0.7rem;
  color: var(--sl-text-light);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.25rem;
}

.sl-fact__value {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--sl-text);
}

.sl-fact__subtext {
  font-size: 0.75rem;
  color: var(--sl-text-light);
}

/* Includes box */
.sl-includes {
  background: var(--sl-white);
  padding: 2rem;
  border-radius: var(--sl-radius-lg);
  box-shadow: var(--sl-shadow);
  text-align: center;
}

.sl-includes__title {
  font-family: var(--sl-font);
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 1rem;
  color: var(--sl-primary);
}

.sl-includes__list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.5rem 1.5rem;
}

.sl-includes__list li {
  color: var(--sl-text);
}

.sl-includes__list li::before {
  content: "✓ ";
  color: var(--sl-primary);
  font-weight: bold;
}

/* ========================================
   FAQ ACCORDION
   - シンプル
   - 中央寄せ
======================================== */
.sl-faq .sl-container {
  max-width: var(--sl-container-narrow);
}

.sl-accordion {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.sl-accordion__item {
  background: var(--sl-white);
  border-radius: 12px;
  box-shadow: var(--sl-shadow);
  overflow: hidden;
}

.sl-accordion__question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.25rem 1.5rem;
  font-weight: 600;
  cursor: pointer;
  list-style: none;
  color: var(--sl-text);
}

.sl-accordion__question::-webkit-details-marker {
  display: none;
}

.sl-accordion__question::after {
  content: "+";
  font-size: 1.5rem;
  color: var(--sl-primary);
  transition: transform var(--sl-transition);
  flex-shrink: 0;
  margin-left: 1rem;
}

.sl-accordion__item[open] .sl-accordion__question::after {
  transform: rotate(45deg);
}

.sl-accordion__answer {
  padding: 0 1.5rem 1.5rem;
  color: var(--sl-text-light);
  line-height: 1.7;
}

.sl-accordion__answer p {
  margin: 0;
}

/* ========================================
   FINAL CTA
   - テラコッタ背景フルブリード
======================================== */
.sl-final-cta {
  background: var(--sl-primary);
  text-align: center;
  padding: 6rem var(--sl-container-padding);
}

.sl-final-cta__title {
  font-family: var(--sl-font);
  font-size: var(--sl-font-h2);
  color: var(--sl-white);
  margin-bottom: 1rem;
}

.sl-final-cta__subtitle {
  color: var(--sl-white);
  opacity: 0.9;
  margin-bottom: 2rem;
  max-width: 450px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.7;
}

.sl-final-cta .sl-cta {
  background: var(--sl-white);
  color: var(--sl-primary);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
}

.sl-final-cta .sl-cta:hover {
  background: var(--sl-bg);
  transform: translateY(-2px);
}

.sl-final-cta__contact {
  color: var(--sl-white);
  opacity: 0.8;
  margin-top: 1.5rem;
  font-size: 0.9rem;
}

/* ========================================
   MOBILE FIXED CTA
======================================== */
.sl-mobile-cta {
  display: block;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 1rem;
  background: var(--sl-white);
  box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.1);
  z-index: 100;
}

.sl-mobile-cta .sl-cta {
  width: 100%;
  text-align: center;
}

@media (min-width: 768px) {
  .sl-mobile-cta {
    display: none;
  }
}

/* Padding for fixed CTA */
@media (max-width: 767px) {
  .sl-final-cta {
    padding-bottom: 8rem;
  }
}

/* ========================================
   ANIMATIONS (subtle, respectful)
======================================== */
@media (prefers-reduced-motion: no-preference) {
  .sl-section {
    opacity: 0;
    transform: translateY(30px);
    animation: slFadeIn 0.7s ease forwards;
  }
  
  .sl-hero {
    opacity: 1;
    transform: none;
    animation: none;
  }
  
  /* Stagger */
  .sl-concept { animation-delay: 0.1s; }
  .sl-your-lunch { animation-delay: 0.15s; }
  .sl-who-joins { animation-delay: 0.2s; }
  .sl-meet-hosts { animation-delay: 0.25s; }
  .sl-voices { animation-delay: 0.3s; }
  .sl-details { animation-delay: 0.35s; }
  .sl-faq { animation-delay: 0.4s; }
}

@keyframes slFadeIn {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (prefers-reduced-motion: reduce) {
  .sl-section {
    opacity: 1;
    transform: none;
    animation: none;
  }
  
  .sl-cta,
  .sl-accordion__question::after {
    transition: none;
  }
}

/* Contact Link */
.sl-contact-link {
  display: block;
  margin-top: 1rem;
  color: var(--sl-primary, #6B4423);
  font-size: 0.9rem;
  text-decoration: none;
  transition: text-decoration 0.2s ease;
}
.sl-contact-link:hover {
  text-decoration: underline;
}

/* Contact Link */
.sl-contact-link {
  display: block;
  margin-top: 1rem;
  color: #6B4423;
  font-size: 0.9rem;
  text-decoration: none;
  transition: text-decoration 0.2s ease;
}
.sl-contact-link:hover {
  text-decoration: underline;
}