/* ============================================================
   キャリア英会話スクール LP スタイルシート
   design.md 仕様に基づく
   ============================================================ */

:root {
  --color-main: #2F8F6F;
  --color-main-dark: #24704F;
  --color-sub: #F5FAF8;
  --color-accent: #FF8F3D;
  --color-cta: #FF6B35;
  --color-text: #333333;
  --color-text-light: #6B7876;
  --color-bg: #FFFFFF;
  --color-border: #E3ECE8;

  --font-heading: "Noto Sans JP", sans-serif;
  --font-body: "Noto Sans JP", sans-serif;
  --font-en: "Poppins", sans-serif;

  --content-width: 1100px;
  --page-width: 1200px;
  --gap-section: 110px;
  --radius-card: 16px;
  --radius-btn: 999px;

  --shadow-soft: 0 10px 30px rgba(47, 143, 111, 0.08);
  --shadow-card: 0 6px 20px rgba(51, 51, 51, 0.06);
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.85;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

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

ul { list-style: none; }

.container {
  max-width: var(--content-width);
  margin: 0 auto;
  padding: 0 24px;
}

.wide-container {
  max-width: var(--page-width);
  margin: 0 auto;
  padding: 0 24px;
}

section { padding: var(--gap-section) 0; }

/* ---------- Typography ---------- */

h1, h2, h3, h4 {
  font-family: var(--font-heading);
  font-weight: 700;
  color: var(--color-text);
  line-height: 1.5;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-en);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.16em;
  color: var(--color-main);
  text-transform: uppercase;
  margin-bottom: 14px;
}

.eyebrow::before {
  content: "";
  width: 22px;
  height: 2px;
  background: var(--color-accent);
  display: inline-block;
}

.section-title {
  font-size: clamp(24px, 3.2vw, 34px);
  margin-bottom: 16px;
}

.section-lead {
  color: var(--color-text-light);
  font-size: 15.5px;
  max-width: 640px;
}

.section-head {
  text-align: center;
  margin-bottom: 56px;
}
.section-head .section-lead { margin: 0 auto; }

/* ---------- Buttons ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 18px 38px;
  border-radius: var(--radius-btn);
  font-weight: 700;
  font-size: 16px;
  border: none;
  cursor: pointer;
  transition: transform 0.25s ease, box-shadow 0.25s ease, background 0.25s ease;
  white-space: nowrap;
}

.btn-cta {
  background: var(--color-cta);
  color: #fff;
  box-shadow: 0 10px 24px rgba(255, 107, 53, 0.35);
}
.btn-cta:hover {
  transform: translateY(-3px);
  box-shadow: 0 14px 30px rgba(255, 107, 53, 0.42);
  background: #ff5a1f;
}

.btn-outline {
  background: transparent;
  color: var(--color-main);
  border: 1.5px solid var(--color-main);
}
.btn-outline:hover {
  background: var(--color-main);
  color: #fff;
}

.btn-ghost-white {
  background: #fff;
  color: var(--color-main-dark);
}
.btn-ghost-white:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 24px rgba(0,0,0,0.15);
}

.btn small {
  font-family: var(--font-en);
  font-weight: 500;
  opacity: 0.85;
}

/* ---------- Header ---------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border);
}

.site-header .wide-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 78px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 18px;
  color: var(--color-text);
}

.logo .mark {
  width: 36px;
  height: 36px;
  background: var(--color-main);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-en);
  font-weight: 700;
  font-size: 15px;
}

.logo .en {
  display: block;
  font-family: var(--font-en);
  font-weight: 400;
  font-size: 11px;
  color: var(--color-text-light);
  letter-spacing: 0.05em;
}

.header-nav {
  display: flex;
  align-items: center;
  gap: 32px;
}

.header-nav .nav-links {
  display: flex;
  gap: 28px;
  font-size: 14.5px;
  font-weight: 500;
}

.header-nav .nav-links a { position: relative; }
.header-nav .nav-links a::after {
  content: "";
  position: absolute;
  left: 0; bottom: -6px;
  width: 0; height: 2px;
  background: var(--color-accent);
  transition: width 0.25s ease;
}
.header-nav .nav-links a:hover::after { width: 100%; }

.header-tel {
  font-family: var(--font-en);
  font-weight: 700;
  font-size: 16px;
  color: var(--color-main-dark);
}
.header-tel span {
  display: block;
  font-family: var(--font-body);
  font-weight: 400;
  font-size: 11px;
  color: var(--color-text-light);
}

.header-cta {
  padding: 12px 24px;
  font-size: 14px;
}

@media (max-width: 900px) {
  .header-nav .nav-links, .header-tel { display: none; }
}

/* Mobile header: keep the logo and CTA readable without squeezing. */
@media (max-width: 600px) {
  .site-header .wide-container {
    height: auto;
    min-height: 72px;
    padding: 10px 16px;
    gap: 10px;
  }

  .logo {
    flex: 1 1 auto;
    min-width: 0;
    gap: 8px;
    font-size: 15px;
    line-height: 1.4;
  }

  .logo .mark {
    flex: 0 0 32px;
    width: 32px;
    height: 32px;
    font-size: 13px;
  }

  .logo > span:last-child {
    display: block;
    max-width: 116px;
  }

  .logo .en {
    display: none;
  }

  .header-nav {
    flex: 0 0 auto;
    gap: 0;
  }

  .header-cta {
    padding: 10px 14px;
    font-size: 12px;
    line-height: 1.2;
  }
}

/* ============================================================
   HERO
   ============================================================ */

.hero {
  padding: 0;
  background: linear-gradient(180deg, var(--color-sub) 0%, #ffffff 78%);
}

.hero-inner {
  max-width: var(--page-width);
  margin: 0 auto;
  padding: 56px 24px 0;
}

.hero-visual {
  position: relative;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-soft);
  overflow: hidden;
}

.hero-visual img { width: 100%; height: auto; }

.hero-visual .hero-cta-float {
  position: absolute;
  left: 56px;
  bottom: 48px;
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

@media (max-width: 760px) {
  .hero-visual .hero-cta-float {
    position: static;
    padding: 20px;
    background: #fff;
  }
}

.hero-badges {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--color-border);
  border: 1px solid var(--color-border);
  margin-top: 40px;
}

.hero-badge {
  background: #fff;
  padding: 26px 18px;
  text-align: center;
  font-size: 13.5px;
  font-weight: 600;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
}

.hero-badge .icon {
  width: 26px;
  height: 26px;
  color: var(--color-main);
}

@media (max-width: 700px) {
  .hero-badges { grid-template-columns: repeat(2, 1fr); }
}

/* ============================================================
   実績 STATS
   ============================================================ */

.stats {
  background: var(--color-main);
  color: #fff;
  padding: 70px 0;
}

.stats .wide-container {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: rgba(255,255,255,0.18);
}

.stat-card {
  background: var(--color-main);
  text-align: center;
  padding: 20px 16px;
}

.stat-card .num {
  font-family: var(--font-en);
  font-weight: 700;
  font-size: clamp(30px, 4vw, 46px);
  color: #fff;
  display: block;
}
.stat-card .num .unit { font-size: 0.5em; margin-left: 2px; }

.stat-card .label {
  margin-top: 8px;
  font-size: 13.5px;
  color: rgba(255,255,255,0.85);
  letter-spacing: 0.02em;
}

@media (max-width: 700px) {
  .stats .wide-container { grid-template-columns: repeat(2, 1fr); }
}

/* ============================================================
   お悩み PAIN POINTS
   ============================================================ */

.pain-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  margin-top: 10px;
}

.pain-card {
  border: 1px solid var(--color-border);
  background: var(--color-sub);
  padding: 30px 24px;
  display: flex;
  align-items: flex-start;
  gap: 16px;
}

.pain-card .check {
  flex-shrink: 0;
  width: 24px;
  height: 24px;
  border: 2px solid var(--color-main);
  color: var(--color-main);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: 700;
}

.pain-card p { font-size: 15px; font-weight: 600; }

@media (max-width: 860px) {
  .pain-grid { grid-template-columns: 1fr; }
}

/* ============================================================
   選ばれる理由 REASONS
   ============================================================ */

.reasons-section { background: var(--color-sub); }

.reason-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.reason-card {
  background: #fff;
  border: 1px solid var(--color-border);
  padding: 40px 30px;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.reason-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-card);
}

.reason-card .num {
  font-family: var(--font-en);
  font-weight: 700;
  font-size: 13px;
  color: var(--color-accent);
  letter-spacing: 0.08em;
}

.reason-card .icon-wrap {
  width: 52px;
  height: 52px;
  background: var(--color-sub);
  color: var(--color-main);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 16px 0 20px;
}

.reason-card h3 { font-size: 17.5px; margin-bottom: 10px; }
.reason-card p { font-size: 14px; color: var(--color-text-light); }

@media (max-width: 860px) {
  .reason-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 560px) {
  .reason-grid { grid-template-columns: 1fr; }
}

/* ============================================================
   コース紹介 COURSES
   ============================================================ */

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

.course-card {
  border: 1px solid var(--color-border);
  padding: 32px 26px;
  position: relative;
  overflow: hidden;
}

.course-card::before {
  content: "";
  position: absolute;
  left: 0; top: 0;
  width: 4px; height: 100%;
  background: var(--color-main);
}

.course-card .en {
  font-family: var(--font-en);
  font-size: 12px;
  color: var(--color-text-light);
  letter-spacing: 0.08em;
}

.course-card h3 { font-size: 18px; margin: 8px 0 10px; }
.course-card p { font-size: 13.5px; color: var(--color-text-light); }

@media (max-width: 860px) {
  .course-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 560px) {
  .course-grid { grid-template-columns: 1fr; }
}

/* ============================================================
   レッスンの流れ FLOW
   ============================================================ */

.flow-section { background: var(--color-sub); }

.flow-list {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.flow-step {
  display: grid;
  grid-template-columns: 90px 1fr;
  gap: 28px;
  background: #fff;
  border: 1px solid var(--color-border);
  padding: 28px 32px;
  align-items: center;
}

.flow-step + .flow-step { border-top: none; }

.flow-step .step-num {
  font-family: var(--font-en);
  font-weight: 700;
  font-size: 30px;
  color: var(--color-main);
  text-align: center;
}
.flow-step .step-num small {
  display: block;
  font-family: var(--font-body);
  font-size: 11px;
  font-weight: 500;
  color: var(--color-text-light);
  letter-spacing: 0.05em;
}

.flow-step h3 { font-size: 17px; margin-bottom: 4px; }
.flow-step p { font-size: 13.5px; color: var(--color-text-light); }

.flow-arrow {
  text-align: center;
  color: var(--color-main);
  padding: 6px 0;
  font-size: 18px;
}

@media (max-width: 600px) {
  .flow-step { grid-template-columns: 60px 1fr; padding: 22px 20px; }
  .flow-step .step-num { font-size: 22px; }
}

/* ============================================================
   講師紹介 TEACHERS
   ============================================================ */

.teacher-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.teacher-card {
  border: 1px solid var(--color-border);
}

.teacher-photo { aspect-ratio: 5/6; overflow: hidden; background: var(--color-sub); }
.teacher-photo img { width: 100%; height: 100%; object-fit: cover; }

.teacher-info { padding: 22px 24px 26px; }
.teacher-info .origin {
  font-family: var(--font-en);
  font-size: 11.5px;
  letter-spacing: 0.08em;
  color: var(--color-main);
  font-weight: 600;
}
.teacher-info h3 { font-size: 18px; margin: 6px 0 10px; }
.teacher-info .specialty {
  display: inline-block;
  font-size: 12px;
  background: var(--color-sub);
  color: var(--color-main-dark);
  padding: 5px 12px;
  margin-bottom: 12px;
}
.teacher-info .comment {
  font-size: 13.5px;
  color: var(--color-text-light);
  border-top: 1px dashed var(--color-border);
  padding-top: 12px;
}

@media (max-width: 860px) {
  .teacher-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 560px) {
  .teacher-grid { grid-template-columns: 1fr; }
}

/* ============================================================
   受講者の声 TESTIMONIALS
   ============================================================ */

.voice-section { background: var(--color-sub); }

.voice-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}

.voice-card {
  background: #fff;
  border: 1px solid var(--color-border);
  padding: 30px 28px;
}

.voice-card .stars { color: var(--color-accent); font-size: 15px; letter-spacing: 2px; margin-bottom: 14px; }
.voice-card p.comment { font-size: 14.5px; margin-bottom: 20px; }

.voice-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  padding-top: 16px;
  border-top: 1px solid var(--color-border);
}
.voice-meta .avatar {
  width: 40px; height: 40px;
  background: var(--color-main);
  color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-en); font-weight: 700; font-size: 13px;
}
.voice-meta .name { font-size: 13.5px; font-weight: 600; }
.voice-meta .role { font-size: 12px; color: var(--color-text-light); }

@media (max-width: 860px) {
  .voice-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 600px) {
  .voice-grid { grid-template-columns: 1fr; }
}

/* ============================================================
   オンラインだから続く理由
   ============================================================ */

.online-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.online-card {
  text-align: center;
  padding: 34px 20px;
  border: 1px solid var(--color-border);
}

.online-card .icon {
  width: 46px; height: 46px;
  margin: 0 auto 16px;
  color: var(--color-main);
}

.online-card h3 { font-size: 15px; }

@media (max-width: 860px) {
  .online-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 500px) {
  .online-grid { grid-template-columns: 1fr; }
}

/* ============================================================
   料金 PRICING
   ============================================================ */

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  align-items: stretch;
}

.price-card {
  border: 1px solid var(--color-border);
  background: #fff;
  padding: 36px 30px;
  position: relative;
  display: flex;
  flex-direction: column;
}

.price-card.featured {
  border: 2px solid var(--color-main);
  box-shadow: var(--shadow-soft);
  transform: scale(1.03);
}

.price-card .badge {
  position: absolute;
  top: -1px; right: -1px;
  background: var(--color-accent);
  color: #fff;
  font-size: 12px;
  font-weight: 700;
  padding: 7px 16px;
}

.price-card .plan-name { font-size: 13px; color: var(--color-text-light); font-weight: 600; letter-spacing: 0.04em; }
.price-card .plan-count { font-size: 20px; font-weight: 700; margin: 10px 0 18px; }

.price-card .price {
  font-family: var(--font-en);
  font-weight: 700;
  font-size: 40px;
  color: var(--color-main-dark);
}
.price-card .price .yen { font-size: 20px; margin-right: 2px; }
.price-card .price .tax { font-size: 13px; font-weight: 400; color: var(--color-text-light); font-family: var(--font-body); }

.price-card .desc {
  font-size: 13.5px;
  color: var(--color-text-light);
  margin: 16px 0 24px;
  flex-grow: 1;
}

@media (max-width: 860px) {
  .pricing-grid { grid-template-columns: 1fr; }
  .price-card.featured { transform: none; }
}

/* ============================================================
   FAQ
   ============================================================ */

.faq-section { background: var(--color-sub); }

.faq-list { display: flex; flex-direction: column; gap: 12px; }

.faq-item { background: #fff; border: 1px solid var(--color-border); }

.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 22px 26px;
  background: none;
  border: none;
  cursor: pointer;
  font-family: var(--font-body);
  font-size: 15.5px;
  font-weight: 600;
  color: var(--color-text);
  text-align: left;
}

.faq-question .q-mark {
  font-family: var(--font-en);
  color: var(--color-main);
  font-weight: 700;
  margin-right: 14px;
}

.faq-question .toggle {
  flex-shrink: 0;
  width: 22px; height: 22px;
  position: relative;
}
.faq-question .toggle::before,
.faq-question .toggle::after {
  content: "";
  position: absolute;
  background: var(--color-main);
  transition: transform 0.3s ease;
}
.faq-question .toggle::before { left: 0; top: 50%; width: 100%; height: 2px; transform: translateY(-50%); }
.faq-question .toggle::after { top: 0; left: 50%; width: 2px; height: 100%; transform: translateX(-50%); }
.faq-item.open .toggle::after { transform: translateX(-50%) rotate(90deg); opacity: 0; }

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease, padding 0.35s ease;
  padding: 0 26px;
  font-size: 14.5px;
  color: var(--color-text-light);
}

.faq-item.open .faq-answer {
  max-height: 300px;
  padding: 0 26px 24px;
}

/* ============================================================
   最後のCTA FINAL CTA
   ============================================================ */

.final-cta {
  background: var(--color-main);
  color: #fff;
  text-align: center;
  padding: 100px 0;
  position: relative;
  overflow: hidden;
}

.final-cta h2 {
  color: #fff;
  font-size: clamp(24px, 3.6vw, 36px);
  margin-bottom: 14px;
}

.final-cta p.lead {
  color: rgba(255,255,255,0.85);
  margin-bottom: 40px;
}

.final-cta .btn-cta { margin-bottom: 44px; }

.contact-options {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

.contact-option {
  display: flex;
  align-items: center;
  gap: 10px;
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.3);
  padding: 14px 24px;
  font-size: 14px;
  font-weight: 600;
  transition: background 0.25s ease;
}
.contact-option:hover { background: rgba(255,255,255,0.2); }

/* ============================================================
   FOOTER
   ============================================================ */

.site-footer {
  background: #1F2E28;
  color: rgba(255,255,255,0.7);
  padding: 64px 0 28px;
  font-size: 13.5px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255,255,255,0.12);
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  color: #fff;
  font-weight: 700;
  font-size: 17px;
  margin-bottom: 18px;
}
.footer-logo .mark {
  width: 32px; height: 32px;
  background: var(--color-main);
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-en); font-weight: 700; font-size: 13px;
}

.footer-col h4 {
  color: #fff;
  font-size: 13px;
  letter-spacing: 0.06em;
  margin-bottom: 16px;
}
.footer-col ul li { margin-bottom: 10px; }
.footer-col ul li a:hover { color: #fff; }

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  padding-top: 24px;
  font-size: 12px;
}

.footer-bottom .legal-links { display: flex; gap: 20px; }

/* ============================================================
   UTILITIES / ANIMATION
   ============================================================ */

.fade-up {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.fade-up.visible { opacity: 1; transform: translateY(0); }

.reveal-stagger.visible .stagger-item {
  opacity: 1;
  transform: translateY(0);
}
.stagger-item {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal-stagger.visible .stagger-item:nth-child(1) { transition-delay: 0.05s; }
.reveal-stagger.visible .stagger-item:nth-child(2) { transition-delay: 0.15s; }
.reveal-stagger.visible .stagger-item:nth-child(3) { transition-delay: 0.25s; }
.reveal-stagger.visible .stagger-item:nth-child(4) { transition-delay: 0.35s; }
.reveal-stagger.visible .stagger-item:nth-child(5) { transition-delay: 0.45s; }
.reveal-stagger.visible .stagger-item:nth-child(6) { transition-delay: 0.55s; }

@media (prefers-reduced-motion: reduce) {
  .fade-up, .stagger-item { opacity: 1 !important; transform: none !important; transition: none !important; }
  html { scroll-behavior: auto; }
}

.mobile-only { display: none; }
@media (max-width: 760px) {
  .mobile-only { display: block; }
  :root { --gap-section: 72px; }
  section { padding: var(--gap-section) 0; }
}

/* ============================================================
   RESPONSIVE: FAQ / FOOTER
   ============================================================ */
@media (max-width: 760px) {
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
}

@media (max-width: 480px) {
  .faq-question {
    padding: 20px 18px;
  }

  .faq-answer {
    padding-left: 18px;
    padding-right: 18px;
  }

  .faq-item.open .faq-answer {
    padding: 0 18px 22px;
  }
}