/* ==========================================================================
   Herbs Facial School Landing Page - style.css
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. Design System & CSS Variables
   -------------------------------------------------------------------------- */
:root {
  /* Color Palette */
  --bg-primary: #FCFBF9;       /* Soft warm white / hotel-like */
  --bg-secondary: #F3F1EC;     /* Light grayish beige */
  --color-primary: #5FAF72;    /* Herb Green (Accent) */
  --color-primary-dark: #2C4A34; /* Deep forest green (Main text) */
  --color-primary-light: #EBF4EE; /* Ultra light green */
  --color-gold: #E5D3B3;       /* Warm champagne gold */
  --color-gold-dark: #B89F72;  /* Deep gold for subtle borders */
  --text-dark: #1F2D23;        /* Charcoal with green tint for high contrast readability */
  --text-muted: #5F6C62;       /* Slate green for subtext */
  --white: #FFFFFF;
  
  /* Shadows */
  --shadow-soft: 0 10px 30px rgba(44, 74, 52, 0.04);
  --shadow-medium: 0 15px 40px rgba(44, 74, 52, 0.08);
  --shadow-glass: 0 8px 32px 0 rgba(44, 74, 52, 0.06);

  /* Borders & Radius */
  --border-radius-sm: 8px;
  --border-radius-md: 16px;     /* Standard 16px border radius */
  --border-radius-lg: 24px;
  --border-glass: 1px solid rgba(229, 211, 179, 0.4);
  
  /* Typography */
  --font-family: 'Noto Sans JP', sans-serif;
  
  /* Transitions */
  --transition-smooth: all 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
  --transition-fast: all 0.2s ease;
}

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

html {
  font-family: var(--font-family);
  font-size: 16px;
  scroll-behavior: auto; /* Handled smoothly by JS */
  color: var(--text-dark);
  background-color: var(--bg-primary);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  line-height: 1.8;
  overflow-x: hidden;
}

a {
  color: inherit;
  text-decoration: none;
  transition: var(--transition-fast);
}

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

button, input, select, textarea {
  font-family: inherit;
  font-size: inherit;
  color: inherit;
  background: none;
  border: none;
  outline: none;
}

ul {
  list-style: none;
}

/* --------------------------------------------------------------------------
   3. Common Layout & Utility Classes
   -------------------------------------------------------------------------- */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.container-narrow {
  max-width: 800px;
  margin: 0 auto;
  padding: 0 24px;
}

.section-padding {
  padding: 100px 0;
  position: relative;
}

@media (max-width: 768px) {
  .section-padding {
    padding: 60px 0;
  }
}

.grid {
  display: grid;
  gap: 32px;
}

.grid-3 {
  grid-template-columns: repeat(3, 1fr);
}

.grid-5 {
  grid-template-columns: repeat(5, 1fr);
}

@media (max-width: 1024px) {
  .grid-3 {
    grid-template-columns: repeat(2, 1fr);
  }
  .grid-5 {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 768px) {
  .grid-3, .grid-5 {
    grid-template-columns: 1fr;
    gap: 24px;
  }
}

.text-center {
  text-align: center;
}

.inline-block {
  display: inline-block;
}

/* Section Header */
.section-header {
  margin-bottom: 60px;
}

.section-subtitle {
  font-size: 0.9rem;
  letter-spacing: 0.2em;
  color: var(--color-primary);
  text-transform: uppercase;
  font-weight: 500;
  display: block;
  margin-bottom: 8px;
}

.section-title {
  font-size: 2.2rem;
  color: var(--color-primary-dark);
  font-weight: 400;
  letter-spacing: 0.05em;
  margin-bottom: 16px;
  position: relative;
  display: inline-block;
}

.section-title::after {
  content: '';
  display: block;
  width: 40px;
  height: 1px;
  background-color: var(--color-gold-dark);
  margin: 12px auto 0;
}

.section-description {
  font-size: 1.05rem;
  color: var(--text-muted);
  font-weight: 300;
}

@media (max-width: 768px) {
  .section-title {
    font-size: 1.8rem;
  }
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 16px 36px;
  border-radius: 50px;
  font-weight: 500;
  letter-spacing: 0.1em;
  cursor: pointer;
  transition: var(--transition-smooth);
  box-shadow: var(--shadow-soft);
}

.btn-primary {
  background-color: var(--color-primary);
  color: var(--white);
}

.btn-primary:hover {
  background-color: #519862;
  transform: translateY(-2px);
  box-shadow: 0 12px 24px rgba(95, 175, 114, 0.3);
}

.btn-secondary {
  background: var(--color-primary-dark);
  color: var(--white);
}

.btn-secondary:hover {
  background-color: #1e3324;
  transform: translateY(-2px);
  box-shadow: 0 12px 24px rgba(44, 74, 52, 0.3);
}

.btn-lg {
  padding: 20px 48px;
  font-size: 1.1rem;
}

.btn-sm {
  padding: 10px 24px;
  font-size: 0.85rem;
  font-weight: 700;
}

.btn-block {
  display: flex;
  width: 100%;
}

/* Glassmorphism Common Style */
.glass-effect {
  background: rgba(255, 255, 255, 0.75);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: var(--border-glass);
  box-shadow: var(--shadow-glass);
}

/* --------------------------------------------------------------------------
   4. Background CSS Plant & Leaf Art & Animations
   -------------------------------------------------------------------------- */
/* Soft animated plant leaves on background */
.mission::before, .curriculum::before, .faq::before, .cta::before {
  content: '';
  position: absolute;
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(95,175,114,0.06) 0%, rgba(252,251,249,0) 70%);
  z-index: 0;
  pointer-events: none;
}

.mission::before {
  top: -100px;
  right: -50px;
}

.curriculum::before {
  bottom: -100px;
  left: -100px;
}

/* Leaf SVG Background Decors */
.floating-leaves-container {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
  pointer-events: none;
  z-index: 2;
}

.leaf {
  position: absolute;
  width: 40px;
  height: 40px;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%235FAF72' stroke-width='1' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M2 22C2 22 8 20 12 16C16 12 22 2 22 2C22 2 12 8 8 12C4 16 2 22 2 22Z'%3E%3C/path%3E%3Cpath d='M2 22L12 12'%3E%3C/path%3E%3C/svg%3E");
  background-size: contain;
  background-repeat: no-repeat;
  opacity: 0.15;
}

.leaf-1 {
  top: 15%;
  left: 5%;
  transform: rotate(15deg);
  animation: floatLeaf1 12s infinite ease-in-out;
}

.leaf-2 {
  top: 45%;
  right: 8%;
  transform: rotate(-35deg) scale(1.3);
  animation: floatLeaf2 15s infinite ease-in-out;
}

.leaf-3 {
  bottom: 20%;
  left: 10%;
  transform: rotate(45deg) scale(0.8);
  animation: floatLeaf1 18s infinite ease-in-out;
}

@keyframes floatLeaf1 {
  0%, 100% { transform: translateY(0) rotate(15deg); }
  50% { transform: translateY(-20px) rotate(25deg); }
}

@keyframes floatLeaf2 {
  0%, 100% { transform: translateY(0) rotate(-35deg); }
  50% { transform: translateY(25px) rotate(-20deg); }
}

/* --------------------------------------------------------------------------
   5. Interactive & Layout Elements
   -------------------------------------------------------------------------- */
/* Scroll Progress Bar */
.progress-bar {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  background-color: var(--color-primary);
  width: 0%;
  z-index: 1001;
  transition: width 0.1s ease;
}

/* Page Top Button */
.page-top-btn {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background-color: var(--white);
  border: 1px solid rgba(44, 74, 52, 0.1);
  color: var(--color-primary-dark);
  box-shadow: var(--shadow-medium);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: var(--transition-smooth);
  z-index: 99;
}

.page-top-btn.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.page-top-btn:hover {
  background-color: var(--color-primary-light);
  color: var(--color-primary);
}

/* --------------------------------------------------------------------------
   6. Header Navigation
   -------------------------------------------------------------------------- */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background: rgba(252, 251, 249, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(44, 74, 52, 0.05);
  z-index: 1000;
  transition: var(--transition-smooth);
}

.header.scrolled {
  padding: 8px 0;
  box-shadow: var(--shadow-soft);
  background: rgba(252, 251, 249, 0.95);
}

.header-container {
  max-width: 1300px;
  margin: 0 auto;
  padding: 16px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo a {
  display: flex;
  flex-direction: column;
}

.logo-en {
  font-size: 1.3rem;
  font-weight: 300;
  letter-spacing: 0.1em;
  color: var(--color-primary-dark);
  line-height: 1.2;
}

.logo-jp {
  font-size: 0.65rem;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  margin-top: 2px;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 24px;
}

.nav-menu ul {
  display: flex;
  gap: 18px;
}

.nav-menu a {
  font-size: 0.82rem;
  font-weight: 400;
  color: var(--color-primary-dark);
  letter-spacing: 0.03em;
  position: relative;
  padding: 6px 0;
  white-space: nowrap;
}

.nav-menu a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 1px;
  background-color: var(--color-primary);
  transition: var(--transition-fast);
}

.nav-menu a:hover::after {
  width: 100%;
}

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 26px;
  height: 18px;
  cursor: pointer;
  z-index: 1002;
}

.hamburger span {
  display: block;
  width: 100%;
  height: 2px;
  background-color: var(--color-primary-dark);
  transition: var(--transition-smooth);
}

@media (max-width: 1024px) {
  .hamburger {
    display: flex;
  }
  
  .nav-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 280px;
    height: 100vh;
    background: rgba(252, 251, 249, 0.98);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    box-shadow: -10px 0 30px rgba(0,0,0,0.05);
    flex-direction: column;
    align-items: flex-start;
    padding: 100px 40px;
    gap: 40px;
    transition: var(--transition-smooth);
    z-index: 1001;
  }
  
  .nav-menu.active {
    right: 0;
  }
  
  .nav-menu ul {
    flex-direction: column;
    width: 100%;
    gap: 20px;
  }
  
  .nav-menu a {
    font-size: 1.1rem;
    display: block;
    width: 100%;
  }

  .nav-cta {
    width: 100%;
  }
  
  .nav-cta .btn {
    width: 100%;
    text-align: center;
  }

  /* Hamburger Active Animation */
  .hamburger.active span:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
  }
  .hamburger.active span:nth-child(2) {
    opacity: 0;
  }
  .hamburger.active span:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
  }
}

/* --------------------------------------------------------------------------
   7. Section 1: Hero
   -------------------------------------------------------------------------- */
.hero {
  height: 100vh;
  min-height: 650px;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding-top: 80px;
}

.hero-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-size: cover;
  background-position: center;
  transform: scale(1.05);
  animation: zoomHero 20s infinite alternate ease-in-out;
  z-index: 1;
}

.hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, rgba(252, 251, 249, 0.95) 20%, rgba(252, 251, 249, 0.7) 100%);
  z-index: 2;
}

.hero-content {
  position: relative;
  z-index: 10;
  max-width: 800px;
}

.hero-badge {
  font-size: 0.85rem;
  letter-spacing: 0.3em;
  color: var(--color-primary);
  font-weight: 500;
  margin-bottom: 20px;
  display: inline-block;
  border-bottom: 1px solid var(--color-gold);
  padding-bottom: 4px;
}

.hero-title {
  font-size: 3.2rem;
  line-height: 1.4;
  color: var(--color-primary-dark);
  font-weight: 300;
  letter-spacing: 0.08em;
  margin-bottom: 32px;
}

.hero-title span {
  display: inline-block;
}

.hero-subtext {
  font-size: 1.15rem;
  color: var(--text-muted);
  line-height: 1.8;
  font-weight: 300;
  margin-bottom: 40px;
}

@keyframes zoomHero {
  0% { transform: scale(1); }
  100% { transform: scale(1.08); }
}

/* Scroll indicator */
.scroll-indicator {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  z-index: 10;
}

.scroll-text {
  font-size: 0.75rem;
  letter-spacing: 0.25em;
  color: var(--text-muted);
}

.scroll-line {
  width: 1px;
  height: 60px;
  background-color: rgba(44, 74, 52, 0.15);
  position: relative;
  overflow: hidden;
}

.scroll-line::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 20px;
  background-color: var(--color-primary);
  animation: scrollDown 2s infinite cubic-bezier(0.15, 0.85, 0.45, 1);
}

@keyframes scrollDown {
  0% { top: -20px; }
  100% { top: 60px; }
}

@media (max-width: 768px) {
  .hero-title {
    font-size: 2.2rem;
  }
  .hero-subtext {
    font-size: 1rem;
  }
}

/* --------------------------------------------------------------------------
   8. Section 2: Future (叶う未来)
   -------------------------------------------------------------------------- */
.future {
  background-color: var(--bg-primary);
}

.future-card {
  background: var(--white);
  padding: 40px;
  border-radius: var(--border-radius-md); /* 16px standard */
  box-shadow: var(--shadow-soft);
  border: 1px solid rgba(44, 74, 52, 0.02);
  transition: var(--transition-smooth);
  position: relative;
  overflow: hidden;
}

.future-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 0;
  background-color: var(--color-primary);
  transition: var(--transition-smooth);
}

.future-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-medium);
  border-color: rgba(95, 175, 114, 0.1);
}

.future-card:hover::before {
  height: 100%;
}

.card-num {
  font-size: 2.2rem;
  font-weight: 300;
  color: var(--color-gold);
  line-height: 1;
  margin-bottom: 20px;
  font-family: 'Times New Roman', serif;
}

.card-title {
  font-size: 1.25rem;
  color: var(--color-primary-dark);
  font-weight: 500;
  margin-bottom: 12px;
}

.card-text {
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.7;
}

/* --------------------------------------------------------------------------
   9. Section: Mission
   -------------------------------------------------------------------------- */
.mission {
  background-color: var(--bg-secondary);
  position: relative;
  z-index: 1;
}

.mission-subtitle {
  font-size: 0.9rem;
  letter-spacing: 0.3em;
  color: var(--color-primary);
  display: block;
  margin-bottom: 16px;
  text-transform: uppercase;
}

.mission-title {
  font-size: 2rem;
  line-height: 1.5;
  color: var(--color-primary-dark);
  font-weight: 300;
  margin-bottom: 48px;
}

.mission-content {
  color: var(--text-dark);
  font-size: 1.1rem;
  font-weight: 300;
  line-height: 2.2;
}

.mission-content p {
  margin-bottom: 24px;
}

.mission-content .highlight-text {
  font-size: 1.2rem;
  color: var(--color-primary-dark);
  font-weight: 500;
  margin: 40px 0;
  position: relative;
  display: inline-block;
  padding: 0 12px;
}

.mission-content .highlight-text::before, .mission-content .highlight-text::after {
  content: '“';
  font-size: 2.5rem;
  color: var(--color-gold);
  position: absolute;
  line-height: 1;
  font-family: Georgia, serif;
}

.mission-content .highlight-text::before {
  top: -10px;
  left: -20px;
}

.mission-content .highlight-text::after {
  content: '”';
  bottom: -30px;
  right: -20px;
}

.mission-content .signature {
  font-weight: 400;
  color: var(--color-primary-dark);
  margin-top: 48px;
  font-size: 1.15rem;
}

@media (max-width: 768px) {
  .mission-title {
    font-size: 1.6rem;
  }
  .mission-content {
    font-size: 1rem;
    line-height: 2;
  }
  .mission-content .highlight-text {
    font-size: 1.1rem;
    margin: 30px 0;
  }
}

/* --------------------------------------------------------------------------
   10. Section 3: Reason (選ばれる理由)
   -------------------------------------------------------------------------- */
.reason {
  background-color: var(--bg-primary);
}

.reason-card {
  background: var(--white);
  padding: 48px 36px;
  border-radius: var(--border-radius-md); /* 16px */
  box-shadow: var(--shadow-soft);
  border: var(--border-glass);
  text-align: center;
  transition: var(--transition-smooth);
}

.reason-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-medium);
  background-color: rgba(255, 255, 255, 0.95);
}

.reason-icon {
  margin-bottom: 24px;
  display: inline-flex;
  justify-content: center;
  align-items: center;
  width: 70px;
  height: 70px;
  border-radius: 50%;
  background-color: var(--color-primary-light);
  transition: var(--transition-smooth);
}

.reason-card:hover .reason-icon {
  transform: rotateY(180deg);
  background-color: var(--color-primary);
}

.reason-card:hover .reason-icon svg {
  stroke: var(--white);
}

.reason-card-title {
  font-size: 1.2rem;
  color: var(--color-primary-dark);
  font-weight: 500;
  margin-bottom: 16px;
}

.reason-card-text {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.7;
}

/* --------------------------------------------------------------------------
   11. Section 4: Skills (学べる技術)
   -------------------------------------------------------------------------- */
.skills {
  background-color: var(--bg-secondary);
}

.skill-card {
  background: var(--white);
  padding: 40px;
  border-radius: var(--border-radius-md); /* 16px */
  box-shadow: var(--shadow-soft);
  border: 1px solid rgba(229, 211, 179, 0.2);
  transition: var(--transition-smooth);
  position: relative;
}

.skill-card:hover {
  transform: scale(1.02);
  box-shadow: var(--shadow-medium);
}

.skill-tag {
  font-size: 0.75rem;
  color: var(--color-primary);
  border: 1px solid var(--color-primary);
  border-radius: 3px;
  padding: 2px 8px;
  display: inline-block;
  letter-spacing: 0.1em;
  font-weight: 500;
  margin-bottom: 20px;
}

.skill-title {
  font-size: 1.3rem;
  color: var(--color-primary-dark);
  font-weight: 500;
  margin-bottom: 16px;
}

.skill-text {
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.7;
}

/* Large card configuration for desktop */
@media (min-width: 1025px) {
  .col-span-3-desktop {
    grid-column: span 3;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 40px;
  }
  .col-span-3-desktop .skill-tag {
    margin-bottom: 0;
  }
  .col-span-3-desktop .skill-title {
    margin-bottom: 0;
    min-width: 180px;
  }
  .col-span-3-desktop .skill-text {
    flex-grow: 1;
  }
}

/* --------------------------------------------------------------------------
   12. Section 5: Curriculum (カリキュラム・アコーディオン)
   -------------------------------------------------------------------------- */
.curriculum {
  background-color: var(--bg-primary);
}

.accordion {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.accordion-item {
  border-radius: var(--border-radius-md); /* 16px */
  overflow: hidden;
  box-shadow: var(--shadow-soft);
  border: 1px solid rgba(44, 74, 52, 0.04);
  background-color: var(--white);
  transition: var(--transition-smooth);
}

.accordion-item:hover {
  box-shadow: var(--shadow-medium);
  border-color: rgba(95, 175, 114, 0.1);
}

.accordion-header {
  width: 100%;
  padding: 24px 32px;
  display: flex;
  align-items: center;
  text-align: left;
  cursor: pointer;
  background-color: var(--white);
  position: relative;
  transition: var(--transition-fast);
}

.accordion-header:hover {
  background-color: var(--bg-primary);
}

.day-badge {
  background: var(--color-primary);
  color: var(--white);
  font-size: 0.8rem;
  font-weight: 500;
  padding: 4px 12px;
  border-radius: 4px;
  margin-right: 20px;
  min-width: 65px;
  text-align: center;
}

.day-title {
  font-size: 1.15rem;
  font-weight: 500;
  color: var(--color-primary-dark);
  flex-grow: 1;
}

.accordion-icon {
  width: 24px;
  height: 24px;
  position: relative;
  transition: var(--transition-smooth);
}

.accordion-icon::before, .accordion-icon::after {
  content: '';
  position: absolute;
  background-color: var(--color-primary);
  transition: var(--transition-smooth);
}

/* Horizontal line */
.accordion-icon::before {
  top: 11px;
  left: 4px;
  width: 16px;
  height: 2px;
}

/* Vertical line */
.accordion-icon::after {
  top: 4px;
  left: 11px;
  width: 2px;
  height: 16px;
}

/* Active header styling */
.accordion-header[aria-expanded="true"] .accordion-icon {
  transform: rotate(135deg);
}

/* Content Area */
.accordion-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
  background-color: var(--white);
}

.accordion-inner {
  padding: 0 32px 32px 32px;
  border-top: 1px solid rgba(44, 74, 52, 0.05);
}

.curriculum-meta {
  display: flex;
  gap: 24px;
  padding: 20px 0;
  border-bottom: 1px dashed rgba(44, 74, 52, 0.1);
  font-size: 0.95rem;
  color: var(--color-primary-dark);
}

.meta-block strong {
  color: var(--color-primary);
}

.curriculum-detail {
  display: flex;
  flex-direction: column;
  gap: 20px;
  margin-top: 24px;
}

.detail-section h4 {
  font-size: 1rem;
  color: var(--color-primary-dark);
  font-weight: 500;
  margin-bottom: 6px;
  display: flex;
  align-items: center;
}

.detail-section .dot {
  display: inline-block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--color-gold-dark);
  margin-right: 8px;
}

.detail-section p {
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.7;
}

.session-list {
  list-style: none;
  padding: 0;
  margin: 8px 0 0 14px;
}

.session-list li {
  font-size: 0.93rem;
  color: var(--text-dark);
  line-height: 1.8;
  padding-left: 16px;
  position: relative;
}

.session-list li::before {
  content: '・';
  color: var(--color-primary);
  position: absolute;
  left: 0;
}

.session-practice {
  font-size: 0.9rem;
  color: var(--color-primary-dark);
  background: var(--color-primary-light);
  border-radius: 6px;
  padding: 8px 14px;
  margin-top: 10px;
  display: inline-block;
}

.session-highlight {
  background: linear-gradient(135deg, rgba(229, 211, 179, 0.3), rgba(95, 175, 114, 0.15));
  border: 1px solid var(--color-gold-dark);
  font-weight: 700;
  font-size: 1rem !important;
  padding: 10px 18px !important;
}

@media (max-width: 768px) {
  .accordion-header {
    padding: 20px;
    flex-wrap: wrap;
    gap: 12px;
  }
  
  .day-badge {
    margin-right: 0;
  }
  
  .day-title {
    font-size: 1rem;
    width: calc(100% - 100px);
  }
  
  .accordion-inner {
    padding: 0 20px 20px 20px;
  }
  
  .curriculum-meta {
    flex-direction: column;
    gap: 8px;
  }
}

/* --------------------------------------------------------------------------
   13. Section 6: After Graduation (修了後にできること)
   -------------------------------------------------------------------------- */
.after-graduation {
  background-color: var(--bg-secondary);
}

.grad-card {
  background: var(--white);
  padding: 36px 28px;
  border-radius: var(--border-radius-md); /* 16px */
  box-shadow: var(--shadow-soft);
  border: 1px solid rgba(229, 211, 179, 0.2);
  text-align: center;
  transition: var(--transition-smooth);
}

.grad-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-medium);
  background-color: var(--color-primary-light);
  border-color: rgba(95, 175, 114, 0.2);
}

.grad-card-title {
  font-size: 1.15rem;
  color: var(--color-primary-dark);
  font-weight: 500;
  margin-bottom: 16px;
  position: relative;
  display: inline-block;
  padding-bottom: 8px;
}

.grad-card-title::after {
  content: '';
  display: block;
  width: 30px;
  height: 1px;
  background-color: var(--color-gold-dark);
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
}

.grad-card-text {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* Specific Grid layout override for 5 items */
.grid-5 {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 20px;
}

@media (max-width: 1200px) {
  .grid-5 {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 768px) {
  .grid-5 {
    grid-template-columns: 1fr;
  }
}

/* --------------------------------------------------------------------------
   14. Section 7: Difference (他スクールとの違い)
   -------------------------------------------------------------------------- */
.difference {
  background-color: var(--bg-primary);
}

.diff-content {
  max-width: 900px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 40px;
}

.diff-item {
  display: flex;
  gap: 32px;
  background-color: var(--white);
  padding: 40px;
  border-radius: var(--border-radius-md); /* 16px */
  box-shadow: var(--shadow-soft);
  border: var(--border-glass);
}

.diff-num {
  font-size: 2.8rem;
  font-weight: 300;
  color: var(--color-primary);
  line-height: 1;
  font-family: 'Times New Roman', Georgia, serif;
}

.diff-text h3 {
  font-size: 1.3rem;
  color: var(--color-primary-dark);
  font-weight: 500;
  margin-bottom: 12px;
}

.diff-text p {
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.7;
}

@media (max-width: 768px) {
  .diff-item {
    flex-direction: column;
    padding: 30px;
    gap: 16px;
  }
}

/* --------------------------------------------------------------------------
   15. Section 8: Flow (受講の流れ)
   -------------------------------------------------------------------------- */
.flow {
  background-color: var(--bg-secondary);
}

.flow-steps {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  position: relative;
  margin-top: 60px;
}

.flow-step {
  flex: 1;
  background: var(--white);
  padding: 32px 24px;
  border-radius: var(--border-radius-md); /* 16px */
  box-shadow: var(--shadow-soft);
  text-align: center;
  border: var(--border-glass);
  position: relative;
  z-index: 2;
}

.flow-step-num {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background-color: var(--color-primary);
  color: var(--white);
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  margin-bottom: 20px;
}

.flow-step-title {
  font-size: 1.05rem;
  color: var(--color-primary-dark);
  font-weight: 500;
  margin-bottom: 12px;
}

.flow-step-text {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.6;
}

.flow-step-arrow {
  align-self: center;
  font-size: 1.8rem;
  color: var(--color-gold-dark);
  padding: 0 10px;
  font-weight: 300;
  opacity: 0.8;
}

@media (max-width: 1024px) {
  .flow-steps {
    flex-direction: column;
    gap: 20px;
    align-items: center;
  }
  
  .flow-step {
    width: 100%;
    max-width: 480px;
  }
  
  .flow-step-arrow {
    transform: rotate(90deg);
    padding: 10px 0;
  }
}

/* --------------------------------------------------------------------------
   16. Section 9: FAQ (よくある質問 - Q&Aアコーディオン)
   -------------------------------------------------------------------------- */
.faq {
  background-color: var(--bg-primary);
}

.faq .accordion-header {
  padding: 24px 32px;
}

.q-badge {
  font-family: Georgia, serif;
  font-size: 1.5rem;
  font-weight: bold;
  color: var(--color-gold-dark);
  margin-right: 20px;
  line-height: 1;
}

.faq-question {
  font-size: 1.05rem;
  font-weight: 500;
  color: var(--color-primary-dark);
  flex-grow: 1;
}

.faq .accordion-inner {
  padding: 24px 32px 32px 72px;
}

.faq .accordion-inner p {
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.8;
}

@media (max-width: 768px) {
  .faq .accordion-header {
    padding: 20px;
  }
  .q-badge {
    margin-right: 12px;
  }
  .faq-question {
    font-size: 0.95rem;
    width: calc(100% - 60px);
  }
  .faq .accordion-inner {
    padding: 16px 20px 20px 20px;
  }
}

/* --------------------------------------------------------------------------
   17. Section 10: Instructor (講師紹介)
   -------------------------------------------------------------------------- */
.instructor {
  background-color: var(--bg-primary);
}

.instructor-profile-wrapper {
  display: flex;
  gap: 60px;
  align-items: flex-start;
  max-width: 1100px;
  margin: 0 auto;
}

.instructor-image-area {
  flex: 0 0 350px;
  position: sticky;
  top: 120px;
}

.instructor-img-frame {
  position: relative;
  border-radius: var(--border-radius-md); /* 16px */
  overflow: hidden;
  box-shadow: var(--shadow-medium);
  border: 4px solid var(--white);
}

.instructor-img-frame::after {
  content: '';
  position: absolute;
  top: 12px;
  left: 12px;
  right: 12px;
  bottom: 12px;
  border: 1px solid rgba(225, 225, 225, 0.4);
  pointer-events: none;
}

.instructor-name-tag {
  margin-top: 24px;
  text-align: center;
}

.inst-title {
  font-size: 0.85rem;
  color: var(--color-primary);
  letter-spacing: 0.1em;
  display: block;
  margin-bottom: 6px;
}

.instructor-name-tag h3 {
  font-size: 1.6rem;
  color: var(--color-primary-dark);
  font-weight: 500;
  letter-spacing: 0.15em;
  display: inline-block;
}

.inst-en {
  font-size: 0.8rem;
  color: var(--text-muted);
  letter-spacing: 0.05em;
  display: block;
  margin-top: 4px;
}

.instructor-info-area {
  flex-grow: 1;
}

.instructor-quote {
  font-size: 1.25rem;
  color: var(--color-primary-dark);
  line-height: 1.6;
  font-weight: 300;
  position: relative;
  padding-left: 24px;
  border-left: 3px solid var(--color-gold);
  margin-bottom: 36px;
}

.instructor-story h4, .instructor-qualifications h4 {
  font-size: 1.2rem;
  color: var(--color-primary-dark);
  font-weight: 500;
  margin-bottom: 20px;
  padding-bottom: 8px;
  border-bottom: 1px solid rgba(44, 74, 52, 0.08);
}

.instructor-story p {
  font-size: 0.98rem;
  color: var(--text-dark);
  line-height: 1.85;
  margin-bottom: 20px;
  font-weight: 300;
}

.instructor-story p strong {
  font-weight: 500;
  color: var(--color-primary-dark);
}

.instructor-qualifications {
  margin-top: 40px;
}

.qualifications-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.qualifications-grid ul {
  list-style: none;
}

.qualifications-grid li {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-bottom: 8px;
  position: relative;
  padding-left: 18px;
}

.qualifications-grid li::before {
  content: '・';
  color: var(--color-primary);
  position: absolute;
  left: 0;
}

.qualification-notes {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 16px;
  line-height: 1.5;
}

@media (max-width: 1024px) {
  .instructor-profile-wrapper {
    flex-direction: column;
    align-items: center;
    gap: 40px;
  }
  
  .instructor-image-area {
    flex: none;
    width: 100%;
    max-width: 350px;
    position: relative;
    top: 0;
  }
  
  .qualifications-grid {
    grid-template-columns: 1fr;
    gap: 8px;
  }
}

/* --------------------------------------------------------------------------
   18. Section 11: Final CTA (最後のCTA・お申し込みフォーム)
   -------------------------------------------------------------------------- */
.cta {
  background: linear-gradient(135deg, #2C4A34 0%, #172D1E 100%);
  color: var(--white);
  position: relative;
  overflow: hidden;
}

.cta-bg-leaves {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 100 100' opacity='0.03'%3E%3Cpath d='M20 90C20 90 40 80 50 60C60 40 90 10 90 10C90 10 60 30 40 50C20 70 20 90 20 90Z' fill='%23FFFFFF'/%3E%3Cpath d='M10 50C10 50 30 40 40 20C50 0 80-10 80-10C80-10 55 10 35 30C15 50 10 50 10 50Z' fill='%23FFFFFF'/%3E%3C/svg%3E");
  background-size: cover;
  pointer-events: none;
  z-index: 1;
}

.cta-title {
  font-size: 2.5rem;
  font-weight: 300;
  line-height: 1.4;
  letter-spacing: 0.1em;
  margin-bottom: 20px;
  position: relative;
  z-index: 2;
}

.cta-subtitle {
  font-size: 1.2rem;
  font-weight: 300;
  letter-spacing: 0.05em;
  margin-bottom: 50px;
  opacity: 0.9;
  position: relative;
  z-index: 2;
}

.cta-form-wrapper {
  background: rgba(255, 255, 255, 0.98);
  border-radius: var(--border-radius-md); /* 16px */
  box-shadow: var(--shadow-medium);
  padding: 48px;
  color: var(--text-dark);
  max-width: 650px;
  margin: 0 auto;
  position: relative;
  z-index: 2;
}

.cta-form-note {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 32px;
}

.cta-form {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.form-group {
  display: flex;
  flex-direction: column;
  text-align: left;
}

.form-group label {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-primary-dark);
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.required {
  background-color: #E27B7B;
  color: var(--white);
  font-size: 0.7rem;
  padding: 1px 6px;
  border-radius: 3px;
  font-weight: normal;
}

.optional {
  background-color: #BDC5C0;
  color: var(--white);
  font-size: 0.7rem;
  padding: 1px 6px;
  border-radius: 3px;
  font-weight: normal;
}

.form-group input[type="text"],
.form-group input[type="email"],
.form-group input[type="tel"],
.form-group textarea {
  width: 100%;
  padding: 14px 18px;
  border: 1px solid rgba(44, 74, 52, 0.15);
  border-radius: var(--border-radius-sm);
  background-color: #FAF9F6;
  transition: var(--transition-fast);
  font-size: 0.95rem;
}

.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--color-primary);
  background-color: var(--white);
  box-shadow: 0 0 0 3px rgba(95, 175, 114, 0.1);
}

.form-group input.invalid,
.form-group textarea.invalid {
  border-color: #E27B7B;
  background-color: #FFF6F6;
}

.error-msg {
  color: #D32F2F;
  font-size: 0.75rem;
  margin-top: 4px;
  font-weight: 500;
  display: block;
}

/* Privacy Checkbox */
.checkbox-group {
  margin: 8px 0;
}

.checkbox-label {
  display: flex;
  align-items: center;
  cursor: pointer;
  user-select: none;
  font-size: 0.9rem !important;
}

.checkbox-label input {
  position: absolute;
  opacity: 0;
  cursor: pointer;
  height: 0;
  width: 0;
}

.checkbox-custom {
  display: inline-block;
  width: 18px;
  height: 18px;
  border: 1px solid rgba(44, 74, 52, 0.25);
  border-radius: 4px;
  margin-right: 10px;
  position: relative;
  background-color: var(--white);
  transition: var(--transition-fast);
}

.checkbox-label:hover input ~ .checkbox-custom {
  border-color: var(--color-primary);
}

.checkbox-label input:checked ~ .checkbox-custom {
  background-color: var(--color-primary);
  border-color: var(--color-primary);
}

.checkbox-label input:checked ~ .checkbox-custom::after {
  content: "";
  position: absolute;
  left: 6px;
  top: 2px;
  width: 4px;
  height: 9px;
  border: solid var(--white);
  border-width: 0 2px 2px 0;
  transform: rotate(45deg);
}

/* Form success message */
.success-message {
  padding: 40px 20px;
  text-align: center;
  animation: fadeIn 0.5s ease forwards;
}

.success-message svg {
  margin-bottom: 20px;
}

.success-message h3 {
  font-size: 1.4rem;
  color: var(--color-primary-dark);
  margin-bottom: 12px;
}

.success-message p {
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.8;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

@media (max-width: 768px) {
  .cta-title {
    font-size: 1.8rem;
  }
  .cta-subtitle {
    font-size: 1rem;
    margin-bottom: 30px;
  }
  .cta-form-wrapper {
    padding: 30px 20px;
  }
}

/* --------------------------------------------------------------------------
   19. Footer (フッター)
   -------------------------------------------------------------------------- */
.footer {
  background-color: var(--bg-secondary);
  color: var(--color-primary-dark);
  border-top: 1px solid rgba(44, 74, 52, 0.05);
  padding: 60px 0 20px;
}

.footer-container {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 40px;
  margin-bottom: 40px;
}

.footer-brand {
  flex: 1 1 300px;
}

.footer-logo {
  font-size: 1.4rem;
  font-weight: 300;
  letter-spacing: 0.1em;
  margin-bottom: 12px;
}

.footer-tagline {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.footer-links {
  flex: 1 1 200px;
}

.footer-links ul {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}

.footer-links a {
  font-size: 0.88rem;
  color: var(--text-dark);
}

.footer-links a:hover {
  color: var(--color-primary);
}

.footer-info {
  flex: 1 1 200px;
  font-size: 0.88rem;
  color: var(--text-muted);
  text-align: right;
  line-height: 1.8;
}

.footer-copy {
  border-top: 1px solid rgba(44, 74, 52, 0.05);
  padding-top: 20px;
  font-size: 0.75rem;
  color: var(--text-muted);
}

@media (max-width: 768px) {
  .footer-container {
    flex-direction: column;
    gap: 30px;
  }
  .footer-info {
    text-align: left;
  }
}

/* --------------------------------------------------------------------------
   20. Scroll & Button Animations (Pulse effects)
   -------------------------------------------------------------------------- */
/* Dynamic CTA pulse animations */
.btn-pulse {
  position: relative;
}

.btn-pulse::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  border-radius: 50px;
  border: 1px solid var(--color-primary);
  opacity: 0;
  animation: pulseBtn 3s infinite;
  pointer-events: none;
}

@keyframes pulseBtn {
  0% { transform: scale(1); opacity: 0.6; }
  100% { transform: scale(1.15); opacity: 0; }
}

.btn-pulse-large {
  position: relative;
}

.btn-pulse-large::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  border-radius: 50px;
  border: 1px solid var(--color-gold);
  opacity: 0;
  animation: pulseBtnLarge 3.5s infinite;
  pointer-events: none;
}

@keyframes pulseBtnLarge {
  0% { transform: scale(1); opacity: 0.8; }
  100% { transform: scale(1.08); opacity: 0; }
}

/* --------------------------------------------------------------------------
   21. Scroll Fade-in (IntersectionObserver Support)
   -------------------------------------------------------------------------- */
.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.8s cubic-bezier(0.25, 0.8, 0.25, 1), transform 0.8s cubic-bezier(0.25, 0.8, 0.25, 1);
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Staggered Delay for grid items */
.grid > .fade-in:nth-child(1) { transition-delay: 0.05s; }
.grid > .fade-in:nth-child(2) { transition-delay: 0.15s; }
.grid > .fade-in:nth-child(3) { transition-delay: 0.25s; }
.grid > .fade-in:nth-child(4) { transition-delay: 0.35s; }
.grid > .fade-in:nth-child(5) { transition-delay: 0.45s; }
.grid > .fade-in:nth-child(6) { transition-delay: 0.55s; }

.fade-in-up {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 1s cubic-bezier(0.25, 0.8, 0.25, 1), transform 1s cubic-bezier(0.25, 0.8, 0.25, 1);
}

.fade-in-up.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Initial state animation on hero load */
.hero-content .fade-in-up {
  opacity: 0;
  transform: translateY(30px);
}

.hero-content .fade-in-up:nth-child(1) { animation: loadFadeIn 0.8s 0.2s forwards cubic-bezier(0.25, 0.8, 0.25, 1); }
.hero-content .fade-in-up:nth-child(2) { animation: loadFadeIn 0.8s 0.4s forwards cubic-bezier(0.25, 0.8, 0.25, 1); }
.hero-content .fade-in-up:nth-child(3) { animation: loadFadeIn 0.8s 0.6s forwards cubic-bezier(0.25, 0.8, 0.25, 1); }
.hero-content .fade-in-up:nth-child(4) { animation: loadFadeIn 0.8s 0.8s forwards cubic-bezier(0.25, 0.8, 0.25, 1); }

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

/* Footer Sub Links */
.footer-sub-links {
  margin-bottom: 16px;
  font-size: 0.85rem;
  letter-spacing: 0.05em;
}

.footer-sub-links a {
  color: var(--text-muted);
  margin: 0 8px;
  transition: var(--transition-fast);
}

.footer-sub-links a:hover {
  color: var(--color-primary);
}