@import url('https://fonts.googleapis.com/css2?family=Montserrat:wght@400;600;700;800&family=Noto+Sans+JP:wght@300;400;500;700;900&family=Outfit:wght@300;400;500;600;700;800&display=swap');

/* --- Design Tokens & Variables --- */
:root {
  --font-primary: 'Noto Sans JP', sans-serif;
  --font-display: 'Outfit', 'Montserrat', sans-serif;

  /* Harmonious Light Palette */
  --bg-main: #fcfbfe;
  --bg-gradient: linear-gradient(135deg, #f5f3f9 0%, #edf1f9 100%);
  --text-primary: #1e1b29;
  --text-secondary: #5e5975;
  --text-light: #8e89a5;

  /* High Quality Premium Colors */
  --primary-color: #6c5ce7;
  --primary-light: #a29bfe;
  --secondary-color: #00cec9;
  --secondary-light: #81ecec;
  
  /* Gradation colors */
  --grad-primary: linear-gradient(135deg, #6c5ce7 0%, #00cec9 100%);
  --grad-accent: linear-gradient(135deg, #ff7675 0%, #e84393 100%);
  --grad-glow: radial-gradient(circle, rgba(108, 92, 231, 0.15) 0%, rgba(0, 206, 201, 0.05) 70%);

  /* UI specific colors */
  --accent-pink: #e84393;
  --accent-red: #ff7675;
  --accent-blue: #0984e3;
  --accent-yellow: #fdcb6e;
  
  /* Glassmorphism settings */
  --glass-bg: rgba(255, 255, 255, 0.65);
  --glass-bg-hover: rgba(255, 255, 255, 0.85);
  --glass-border: rgba(255, 255, 255, 0.4);
  --glass-border-focus: rgba(108, 92, 231, 0.4);
  --glass-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.06);
  --glass-shadow-hover: 0 12px 40px 0 rgba(108, 92, 231, 0.12);

  --border-radius-sm: 8px;
  --border-radius-md: 16px;
  --border-radius-lg: 24px;
  --border-radius-pill: 9999px;
  
  --transition-smooth: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-fast: all 0.2s ease;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden; /* htmlでの横はみ出しを確実に防止 */
  width: 100%;
}

body {
  font-family: var(--font-primary);
  background: var(--bg-main);
  background-image: var(--bg-gradient);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden; /* bodyでの横はみ出しを確実に防止 */
  width: 100%;
  position: relative;
}

h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.3;
}

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

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

/* --- Utility Components & Layouts --- */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  position: relative;
  z-index: 10;
}

.text-gradient {
  background: var(--grad-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.text-gradient-accent {
  background: var(--grad-accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.badge {
  display: inline-flex;
  align-items: center;
  padding: 6px 16px;
  font-size: 0.85rem;
  font-weight: 600;
  border-radius: var(--border-radius-pill);
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(10px);
  margin-bottom: 16px;
  color: var(--primary-color);
  box-shadow: var(--glass-shadow);
  font-family: var(--font-display);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 28px;
  font-weight: 700;
  font-size: 1rem;
  border-radius: var(--border-radius-pill);
  border: none;
  cursor: pointer;
  transition: var(--transition-smooth);
  box-shadow: 0 4px 15px rgba(108, 92, 231, 0.2);
}

.btn-primary {
  background: var(--grad-primary);
  color: #fff;
}

.btn-primary:hover {
  transform: translateY(-3px) scale(1.02);
  box-shadow: 0 8px 25px rgba(108, 92, 231, 0.4);
}

.btn-outline {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  color: var(--primary-color);
  backdrop-filter: blur(10px);
}

.btn-outline:hover {
  background: var(--glass-bg-hover);
  border-color: var(--primary-color);
  transform: translateY(-3px);
  box-shadow: var(--glass-shadow-hover);
}

.btn-icon {
  margin-left: 8px;
  transition: var(--transition-fast);
}

.btn:hover .btn-icon {
  transform: translateX(4px);
}

/* Glassmorphism Card Base */
.glass-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--border-radius-md);
  padding: 32px;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: var(--glass-shadow);
  transition: var(--transition-smooth);
}

.glass-card:hover {
  background: var(--glass-bg-hover);
  transform: translateY(-5px);
  box-shadow: var(--glass-shadow-hover);
}

/* Decorative Background Blobs */
.bg-blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  z-index: 1;
  pointer-events: none;
}

.blob-1 {
  width: 400px;
  height: 400px;
  background: rgba(108, 92, 231, 0.15);
  top: -100px;
  right: -100px;
}

.blob-2 {
  width: 500px;
  height: 500px;
  background: rgba(0, 206, 201, 0.12);
  bottom: 20%;
  left: -200px;
}

.blob-3 {
  width: 300px;
  height: 300px;
  background: rgba(232, 67, 147, 0.08);
  top: 50%;
  right: -50px;
}

/* --- Section Structure & Headings --- */
section {
  padding: 100px 0;
  position: relative;
}

.section-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 60px auto;
}

.section-label {
  font-family: var(--font-display);
  font-weight: 700;
  text-transform: uppercase;
  color: var(--primary-color);
  letter-spacing: 0.1em;
  font-size: 0.9rem;
  margin-bottom: 12px;
  display: block;
}

.section-title {
  font-size: 2.25rem;
  color: var(--text-primary);
  margin-bottom: 16px;
  line-height: 1.3;
}

.section-subtitle {
  font-size: 1.1rem;
  color: var(--text-secondary);
}

/* --- Header & Navigation --- */
header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 100;
  transition: var(--transition-smooth);
  border-bottom: 1px solid transparent;
}

header.is-scroll {
  background: rgba(252, 251, 254, 0.8);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--glass-border);
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.02);
}

.header-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 80px;
  padding: 0 24px;
  max-width: 1200px;
  margin: 0 auto;
}

.logo {
  display: flex;
  align-items: center;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.4rem;
  letter-spacing: -0.03em;
  color: var(--text-primary);
}

.logo-icon {
  width: 32px;
  height: 32px;
  background: var(--grad-primary);
  border-radius: var(--border-radius-sm);
  margin-right: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 1.1rem;
  box-shadow: 0 4px 10px rgba(108, 92, 231, 0.2);
}

.logo-desc {
  font-size: 0.88rem;
  font-weight: 800;
  display: block;
  font-family: var(--font-primary);
  margin-top: 2px;
  background: var(--grad-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  letter-spacing: 0.02em;
}

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

nav a {
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--text-secondary);
  position: relative;
  padding: 6px 0;
}

nav a:hover {
  color: var(--primary-color);
}

nav a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--grad-primary);
  transition: var(--transition-fast);
}

nav a:hover::after {
  width: 100%;
}

.menu-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.menu-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  margin: 6px 0;
  transition: var(--transition-fast);
}

/* --- Hero Section --- */
.hero {
  padding-top: 160px;
  padding-bottom: 80px;
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 40px;
  align-items: center;
}

.hero-content {
  max-width: 600px;
}

.hero-tagline {
  font-size: 3.25rem;
  line-height: 1.2;
  margin-bottom: 24px;
  font-weight: 900;
}

.hero-description {
  font-size: 1.15rem;
  color: var(--text-secondary);
  margin-bottom: 36px;
  line-height: 1.6;
}

.hero-btns {
  display: flex;
  gap: 16px;
  margin-bottom: 40px;
  flex-wrap: wrap;
}

.hero-trust {
  display: flex;
  align-items: center;
  gap: 24px;
}

.trust-item {
  display: flex;
  align-items: center;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
}

.trust-item svg {
  margin-right: 8px;
  color: var(--secondary-color);
}

/* --- CSS-Only Mobile Phone Mockup --- */
.hero-visual {
  display: flex;
  justify-content: center;
  position: relative;
}

.phone-mockup {
  width: 320px;
  height: 640px;
  background: #09090d;
  border-radius: 40px;
  padding: 10px;
  box-shadow: 0 25px 60px -10px rgba(31, 38, 135, 0.25), 
              0 0 0 4px #2a2a30,
              inset 0 0 10px rgba(255, 255, 255, 0.1);
  position: relative;
  z-index: 10;
  border: 1px solid rgba(255,255,255,0.05);
}

/* Phone Screen Area */
.phone-screen {
  width: 100%;
  height: 100%;
  background: #f8f6fc;
  border-radius: 32px;
  overflow: hidden;
  position: relative;
  display: flex;
  flex-direction: column;
  box-shadow: inset 0 0 15px rgba(0,0,0,0.05);
}

/* Speaker Notch */
.phone-notch {
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 110px;
  height: 24px;
  background: #09090d;
  border-bottom-left-radius: 16px;
  border-bottom-right-radius: 16px;
  z-index: 99;
  display: flex;
  justify-content: center;
  align-items: center;
}

.notch-camera {
  width: 8px;
  height: 8px;
  background: #222230;
  border-radius: 50%;
}

/* Phone App Navigation */
.phone-header {
  padding: 28px 16px 10px 16px;
  background: #fff;
  border-bottom: 1px solid #eee;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.phone-header-title {
  font-size: 0.95rem;
  font-weight: 800;
  color: var(--primary-color);
  font-family: var(--font-primary);
}

.phone-header-icons {
  display: flex;
  gap: 8px;
  color: #666;
  font-size: 0.8rem;
}

/* Custom Calendar Grid in App */
.phone-content {
  flex: 1;
  overflow-y: auto;
  padding: 12px;
  background: #f8f6fc;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

/* Interactive Simulator Elements */
.sim-calendar {
  background: #fff;
  border-radius: 16px;
  padding: 10px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.02);
}

.sim-cal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.8rem;
  font-weight: 700;
  margin-bottom: 8px;
  padding: 0 4px;
}

.sim-cal-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 4px;
  text-align: center;
}

.sim-cal-day-label {
  font-size: 0.6rem;
  font-weight: 700;
  color: #aaa;
}

.sim-cal-day {
  font-size: 0.75rem;
  font-weight: 600;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 6px;
  cursor: pointer;
  position: relative;
  transition: var(--transition-fast);
}

.sim-cal-day:hover {
  background: #f0f0fa;
}

.sim-cal-day.active {
  background: var(--primary-color);
  color: #fff;
  box-shadow: 0 3px 8px rgba(108, 92, 231, 0.3);
}

.sim-cal-day.has-event::after {
  content: '3';
  position: absolute;
  top: 1px;
  right: 1px;
  background: var(--secondary-color);
  color: white;
  font-size: 0.5rem;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.sim-cal-day.has-hima::after {
  content: '2';
  position: absolute;
  top: 1px;
  right: 1px;
  background: var(--accent-pink);
  color: white;
  font-size: 0.5rem;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Event & Hima List inside phone screen */
.sim-list-container {
  display: flex;
  flex-direction: column;
  gap: 8px;
  flex: 1;
}

.sim-section-title {
  font-size: 0.75rem;
  font-weight: 700;
  color: #888;
  padding: 0 4px;
}

/* Event List Card styling inside phone mockup */
.sim-card {
  background: #fff;
  border-radius: 12px;
  padding: 10px;
  box-shadow: 0 3px 10px rgba(0,0,0,0.02);
  display: flex;
  flex-direction: column;
  gap: 4px;
  transition: var(--transition-smooth);
}

.sim-card.event-card {
  border-left: 3px solid var(--secondary-color);
}

.sim-card.hima-card {
  border-left: 3px solid var(--accent-pink);
}

.sim-card-title {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--text-primary);
}

.sim-card-meta {
  font-size: 0.65rem;
  color: #777;
  display: flex;
  align-items: center;
  gap: 8px;
}

.sim-card-tags {
  display: flex;
  gap: 4px;
  margin-top: 4px;
}

.sim-card-tag {
  font-size: 0.55rem;
  padding: 2px 6px;
  border-radius: 4px;
  background: #f0eff6;
  color: var(--primary-color);
  font-weight: 600;
}

.hima-card .sim-card-tag {
  background: #ffeef2;
  color: var(--accent-pink);
}

.sim-card-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 4px;
  border-top: 1px solid #fafafa;
  padding-top: 4px;
}

.sim-avatar-group {
  display: flex;
  margin-left: 4px;
}

.sim-avatar {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  border: 1px solid white;
  margin-left: -4px;
  background: #ccc;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.4rem;
  color: #555;
  font-weight: 700;
}

.sim-avatar:first-child {
  margin-left: 0;
}

.sim-card-action {
  font-size: 0.6rem;
  font-weight: 700;
  color: #fff;
  background: var(--primary-color);
  padding: 3px 8px;
  border-radius: 4px;
}

/* Phone Floating Action Button (FAB) */
.phone-fab {
  position: absolute;
  bottom: 24px;
  right: 24px;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--grad-primary);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 15px rgba(108, 92, 231, 0.4);
  font-size: 1.2rem;
  font-weight: 700;
  z-index: 20;
}

.phone-fab.hima-fab {
  bottom: 76px;
  width: 36px;
  height: 36px;
  background: var(--grad-accent);
  box-shadow: 0 4px 12px rgba(232, 67, 147, 0.4);
}

/* Floating Badges outside Phone Mockup */
.mockup-badge {
  position: absolute;
  padding: 12px 20px;
  border-radius: var(--border-radius-md);
  font-weight: 700;
  font-size: 0.85rem;
  box-shadow: var(--glass-shadow);
  display: flex;
  align-items: center;
  gap: 10px;
  animation: float 6s ease-in-out infinite;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(10px);
}

.mockup-badge-1 {
  top: 15%;
  left: -80px;
  animation-delay: 0s;
}

.mockup-badge-2 {
  bottom: 25%;
  right: -60px;
  animation-delay: 2s;
}

.mockup-badge-3 {
  bottom: 10%;
  left: -50px;
  animation-delay: 4s;
}

@keyframes float {
  0% { transform: translateY(0px); }
  50% { transform: translateY(-10px); }
  100% { transform: translateY(0px); }
}

/* --- Features Section (Fun & Hobbies) --- */
.features {
  background: rgba(255,255,255,0.2);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 32px;
}

.feature-icon-wrapper {
  width: 60px;
  height: 60px;
  border-radius: var(--border-radius-md);
  background: var(--grad-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 1.5rem;
  margin-bottom: 24px;
  box-shadow: 0 6px 20px rgba(108, 92, 231, 0.15);
}

.feature-icon-wrapper.feature-tag-fun {
  background: var(--grad-accent);
}

.feature-title {
  font-size: 1.3rem;
  margin-bottom: 16px;
  color: var(--text-primary);
}

.feature-description {
  font-size: 0.95rem;
  color: var(--text-secondary);
}

/* --- Detailed Showcases --- */
.showcase-row {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 60px;
  align-items: center;
  margin-bottom: 120px;
}

.showcase-row:last-child {
  margin-bottom: 0;
}

.showcase-row.reverse {
  grid-template-columns: 1.1fr 1fr;
}

.showcase-row.reverse .showcase-text {
  order: 2;
}

.showcase-row.reverse .showcase-visual {
  order: 1;
}

.showcase-text {
  max-width: 500px;
}

.showcase-label {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--accent-pink);
  margin-bottom: 12px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  display: block;
}

.showcase-title {
  font-size: 2rem;
  margin-bottom: 20px;
}

.showcase-desc {
  font-size: 1rem;
  color: var(--text-secondary);
  margin-bottom: 24px;
}

.showcase-list {
  list-style: none;
  margin-bottom: 28px;
}

.showcase-list li {
  margin-bottom: 12px;
  font-size: 0.95rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  color: var(--text-primary);
}

.showcase-list li svg {
  margin-right: 12px;
  color: var(--secondary-color);
}

.showcase-tags {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.showcase-tag {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--primary-color);
  background: rgba(108, 92, 231, 0.06);
  padding: 6px 16px;
  border-radius: var(--border-radius-pill);
  border: 1px solid rgba(108, 92, 231, 0.1);
}

.showcase-visual {
  display: flex;
  justify-content: center;
  position: relative;
}

/* Beautiful custom visual box for UI previews */
.ui-preview-box {
  width: 100%;
  max-width: 480px;
  background: rgba(255, 255, 255, 0.8);
  border: 1px solid var(--glass-border);
  border-radius: var(--border-radius-lg);
  padding: 24px;
  backdrop-filter: blur(20px);
  box-shadow: var(--glass-shadow);
  position: relative;
  overflow: hidden;
}

/* Active chat preview box */
.chat-preview-box {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.chat-bubble {
  display: flex;
  gap: 12px;
  max-width: 80%;
}

.chat-bubble.me {
  align-self: flex-end;
  flex-direction: row-reverse;
}

.chat-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--grad-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: 700;
  font-size: 0.85rem;
}

.chat-avatar.female {
  background: var(--grad-accent);
}

.chat-bubble-content {
  background: #f0f0fb;
  padding: 12px 16px;
  border-radius: var(--border-radius-md);
  border-top-left-radius: 4px;
  font-size: 0.9rem;
}

.chat-bubble.me .chat-bubble-content {
  background: var(--primary-color);
  color: white;
  border-radius: var(--border-radius-md);
  border-top-right-radius: 4px;
}

/* Hima Register Box */
.hima-register-box {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.hima-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 0;
  border-bottom: 1px solid #f0f0fb;
}

.hima-row-label {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--text-primary);
}

.hima-row-value {
  font-size: 0.9rem;
  color: var(--text-secondary);
}

/* Mock Event Creation styling in CSS */
.event-create-box {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-label {
  font-size: 0.78rem;
  font-weight: 800;
  color: var(--text-secondary);
}

.form-input {
  width: 100%;
  padding: 8px 12px;
  border-radius: var(--border-radius-sm);
  border: 1px solid rgba(0, 0, 0, 0.1);
  font-size: 0.82rem;
  background: rgba(255, 255, 255, 0.8);
  color: var(--text-primary);
  outline: none;
  transition: var(--transition-fast);
}

.form-input:focus {
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(108, 92, 231, 0.1);
}

/* --- Comparison Table --- */
.comparison {
  background: transparent;
}

.table-wrap {
  overflow-x: auto;
  border-radius: var(--border-radius-lg);
  border: 1px solid var(--glass-border);
  box-shadow: var(--glass-shadow);
}

table.compare-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  text-align: left;
}

.compare-table th, .compare-table td {
  padding: 20px 24px;
  border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

.compare-table th {
  background: rgba(108, 92, 231, 0.04);
  font-weight: 700;
  color: var(--text-primary);
  font-size: 1rem;
}

.compare-table td {
  font-size: 0.95rem;
  color: var(--text-secondary);
}

.compare-table .highlight {
  background: rgba(108, 92, 231, 0.05);
  font-weight: 700;
  color: var(--primary-color);
}

.compare-table tr:last-child th, .compare-table tr:last-child td {
  border-bottom: none;
}

.mark-ok {
  color: var(--secondary-color);
  font-weight: 800;
  font-size: 1.1rem;
  margin-right: 6px;
}

.mark-ng {
  color: var(--accent-pink);
  font-weight: 800;
  font-size: 1.1rem;
  margin-right: 6px;
}

/* スマホ用比較カード（デフォルト非表示） */
.compare-mobile-cards {
  display: none;
}

/* スマホ専用ログインボタン（デフォルト非表示） */
.mobile-login-btn {
  display: none;
}

/* --- Pricing Section (Interactive Plan Toggler) --- */
.pricing {
  background: transparent;
}

.pricing-controls {
  display: flex;
  justify-content: center;
  gap: 12px;
  margin-bottom: 50px;
  background: var(--glass-bg);
  padding: 6px;
  border-radius: var(--border-radius-pill);
  border: 1px solid var(--glass-border);
  display: inline-flex;
  margin-left: 50%;
  transform: translateX(-50%);
}

.pricing-tab {
  border: none;
  background: none;
  padding: 10px 24px;
  font-weight: 700;
  font-size: 0.9rem;
  border-radius: var(--border-radius-pill);
  cursor: pointer;
  color: var(--text-secondary);
  transition: var(--transition-fast);
}

.pricing-tab.active {
  background: var(--grad-primary);
  color: white;
  box-shadow: 0 4px 15px rgba(108, 92, 231, 0.2);
}

.pricing-cards {
  max-width: 900px;
  margin: 0 auto;
}

.plan-card {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 40px;
  align-items: center;
  transition: var(--transition-smooth);
}

.plan-left {
  border-right: 1px solid rgba(0, 0, 0, 0.05);
  padding-right: 40px;
}

.plan-name {
  font-size: 1.8rem;
  color: var(--primary-color);
  margin-bottom: 8px;
}

.plan-price {
  font-size: 3rem;
  font-weight: 800;
  font-family: var(--font-display);
  margin-bottom: 24px;
}

.plan-price span {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-light);
}

.plan-features {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

.plan-features li {
  font-size: 0.95rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  color: var(--text-primary);
}

.plan-features li svg {
  margin-right: 10px;
  color: var(--secondary-color);
}

/* --- Simulated AI Support Chat --- */
.ai-chatbot {
  background: transparent;
}

.chat-demo-container {
  max-width: 760px;
  margin: 0 auto;
  border: 1px solid var(--glass-border);
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  box-shadow: var(--glass-shadow);
  display: flex;
  flex-direction: column;
  height: 480px;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(25px);
}

.chat-demo-header {
  padding: 16px 24px;
  background: var(--grad-primary);
  color: white;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.chat-demo-header-info {
  display: flex;
  align-items: center;
  gap: 12px;
}

.chat-demo-status {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #00ffcc;
  box-shadow: 0 0 8px #00ffcc;
}

.chat-demo-body {
  flex: 1;
  overflow-y: auto;
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  scroll-behavior: smooth;
}

.chat-demo-options {
  padding: 16px 24px;
  background: #f7f6fa;
  border-top: 1px solid #eef;
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.chat-opt-btn {
  border: 1px solid rgba(108, 92, 231, 0.2);
  background: white;
  color: var(--primary-color);
  padding: 8px 16px;
  border-radius: var(--border-radius-pill);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition-fast);
}

.chat-opt-btn:hover {
  background: var(--primary-color);
  color: white;
  border-color: var(--primary-color);
}

.typing-indicator {
  display: flex;
  gap: 4px;
  padding: 8px 12px;
}

.typing-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #888;
  animation: typing 1.4s infinite ease-in-out;
}

.typing-dot:nth-child(2) { animation-delay: 0.2s; }
.typing-dot:nth-child(3) { animation-delay: 0.4s; }

@keyframes typing {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-4px); }
}

/* --- CTA Section --- */
.cta {
  background: var(--grad-primary);
  color: #fff;
  padding: 120px 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-glow {
  position: absolute;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(255,255,255,0.15) 0%, rgba(255,255,255,0) 70%);
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: 1;
}

.cta-content {
  position: relative;
  z-index: 10;
  max-width: 600px;
  margin: 0 auto;
}

.cta-title {
  font-size: 2.5rem;
  margin-bottom: 20px;
  font-weight: 800;
}

.cta-desc {
  font-size: 1.1rem;
  margin-bottom: 40px;
  opacity: 0.9;
}

.cta .btn-outline {
  color: white;
  border-color: rgba(255,255,255,0.5);
  background: rgba(255, 255, 255, 0.1);
}

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

/* --- FAQ Accordion --- */
.faq-grid {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.faq-item {
  border: 1px solid var(--glass-border);
  border-radius: var(--border-radius-md);
  background: var(--glass-bg);
  overflow: hidden;
  transition: var(--transition-fast);
}

.faq-question {
  padding: 20px 24px;
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--text-primary);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  user-select: none;
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease-out;
  background: rgba(255,255,255,0.3);
}

.faq-answer-inner {
  padding: 20px 24px;
  font-size: 0.95rem;
  color: var(--text-secondary);
  border-top: 1px solid rgba(0,0,0,0.02);
}

.faq-icon {
  transition: transform 0.3s ease;
}

.faq-item.active .faq-icon {
  transform: rotate(45deg);
}

/* --- Footer --- */
footer {
  background: rgba(30, 27, 41, 0.95);
  color: rgba(255, 255, 255, 0.7);
  padding: 60px 0 30px 0;
  font-size: 0.9rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: 60px;
  margin-bottom: 40px;
}

.footer-logo {
  color: white;
}

.footer-logo .logo-icon {
  box-shadow: none;
}

.footer-about {
  margin-top: 16px;
  line-height: 1.6;
}

.footer-links-title {
  color: white;
  font-weight: 700;
  margin-bottom: 20px;
  font-size: 1rem;
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: 12px;
}

.footer-links a:hover {
  color: white;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 30px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

/* --- Reveal Animations --- */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease, transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal.active {
  opacity: 1;
  transform: translateY(0);
}

/* --- Responsive Adjustments --- */
@media (max-width: 992px) {
  .hero-grid {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 50px;
  }
  .hero-content {
    margin: 0 auto;
  }
  .hero-btns {
    justify-content: center;
  }
  .hero-trust {
    justify-content: center;
  }
  .features-grid {
    grid-template-columns: 1fr;
  }
  .showcase-row {
    grid-template-columns: 1fr !important;
    gap: 40px;
  }
  .showcase-row.reverse .showcase-text {
    order: 1;
  }
  .showcase-row.reverse .showcase-visual {
    order: 2;
  }
  .showcase-text {
    max-width: 100%;
    text-align: center;
  }
  .showcase-list li {
    justify-content: center;
  }
  .showcase-tags {
    justify-content: center;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .plan-card {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  .plan-left {
    border-right: none;
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    padding-right: 0;
    padding-bottom: 24px;
    text-align: center;
  }
}

@media (max-width: 768px) {
  /* 背景の光る球体をスマホでは非表示にして横スクロール（はみ出し）を完全に防ぐ */
  .bg-blob {
    display: none !important;
  }

  /* 固定ヘッダーをスマホでも完全に維持 */
  header {
    background: rgba(252, 251, 254, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--glass-border);
    width: 100% !important;
    left: 0 !important;
  }

  .header-container {
    width: 100% !important;
    max-width: 100% !important;
    padding: 0 16px !important; /* 左右余白をスマホ用に最適化 */
  }

  /* スマホ専用ログインボタンの表示とスタイリング (バーガーアイコンの左隣) */
  .mobile-login-btn {
    display: inline-flex !important;
    align-items: center;
    gap: 6px;
    padding: 6px 14px;
    font-size: 0.78rem;
    font-weight: 800;
    color: var(--primary-color);
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--border-radius-pill);
    margin-left: auto; /* 左側のロゴから最大限右側に押し出す */
    margin-right: 12px; /* バーガーメニューとの間に余白を確保 */
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    box-shadow: var(--glass-shadow);
    transition: var(--transition-fast);
    z-index: 101;
  }

  .mobile-login-btn:hover {
    background: var(--glass-bg-hover);
    border-color: var(--primary-color);
    transform: translateY(-1px);
  }

  .mobile-login-btn i {
    font-size: 0.85rem;
  }

  /* スマホ用ドロワーメニューの崩れ対策 */
  nav {
    display: none; /* JSで動的にトグル(flex/none)される */
    flex-direction: column;
    position: absolute;
    top: 80px; /* ヘッダーの高さ */
    left: 0;
    width: 100%;
    background: rgba(252, 251, 254, 0.98);
    backdrop-filter: blur(25px);
    -webkit-backdrop-filter: blur(25px);
    padding: 30px 24px;
    gap: 20px;
    border-bottom: 1px solid var(--glass-border);
    box-shadow: 0 15px 30px rgba(30, 27, 41, 0.08);
    z-index: 99;
    align-items: center;
  }

  nav a {
    width: 100%;
    text-align: center;
    padding: 12px 0;
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--text-primary);
    border-bottom: 1px solid rgba(0, 0, 0, 0.03);
  }

  nav a:last-of-type {
    border-bottom: none;
  }

  nav a::after {
    display: none; /* モバイルではアンダーラインアニメーションを無効化 */
  }

  .menu-toggle {
    display: block;
  }

  /* ヒーローセクションのスマホはみ出し崩れ対策 */
  .hero {
    padding-top: 130px;
    padding-bottom: 60px;
  }

  .hero-tagline {
    font-size: 2.25rem;
  }

  .mockup-badge {
    display: none; /* 左右に飛び出るフローティングバッジはスマホ幅では非表示にし、横スクロール崩れを防止 */
  }

  /* 【バグ解消】強引な transform: scale を廃止し、物理サイズそのものをスマホ用に最適化 */
  .phone-mockup {
    width: 275px !important;
    height: 550px !important;
    border-radius: 36px;
    padding: 8px;
    margin: 0 auto;
    transform: none !important; /* scale拡大縮小による余白バグを完全解消 */
    box-shadow: 0 15px 40px rgba(31, 38, 135, 0.15), 
                0 0 0 3px #2a2a30;
  }

  /* スマホモックアップ内部のフォント・コンポーネント崩れ防止 */
  .phone-notch {
    width: 90px;
    height: 20px;
    border-bottom-left-radius: 12px;
    border-bottom-right-radius: 12px;
  }
  .phone-header {
    padding: 22px 12px 8px 12px;
  }
  .phone-header-title {
    font-size: 0.82rem;
  }
  .phone-content {
    padding: 8px;
    gap: 8px;
  }
  .sim-calendar {
    padding: 8px;
    border-radius: 12px;
  }
  .sim-cal-header {
    font-size: 0.7rem;
    margin-bottom: 6px;
  }
  .sim-cal-day {
    height: 24px;
    font-size: 0.7rem;
  }
  .sim-card {
    padding: 8px;
    border-radius: 10px;
  }
  .sim-card-title {
    font-size: 0.75rem;
  }
  .sim-card-meta {
    font-size: 0.6rem;
    gap: 4px;
  }
  .sim-card-tag {
    font-size: 0.5rem;
    padding: 1px 4px;
  }
  .sim-avatar {
    width: 14px;
    height: 14px;
    font-size: 0.35rem;
  }
  .sim-card-action {
    font-size: 0.55rem;
    padding: 2px 6px;
  }
  .phone-fab {
    bottom: 16px;
    right: 16px;
    width: 36px;
    height: 36px;
    font-size: 0.9rem;
  }
  .phone-fab.hima-fab {
    bottom: 58px;
    width: 28px;
    height: 28px;
  }

  /* セクション余白の最適化 */
  section {
    padding: 70px 0;
  }

  .section-title {
    font-size: 1.8rem;
  }

  /* 料金プラン切り替えタブのスマホ最適化（はみ出し・文字被り崩れ防止） */
  .pricing-controls {
    display: flex !important;
    width: 100% !important;
    max-width: 480px !important;
    margin: 0 auto 40px auto !important;
    transform: none !important;
    left: 0 !important;
    gap: 4px !important;
    padding: 4px !important;
    justify-content: space-between !important;
  }

  .pricing-tab {
    flex: 1 !important;
    padding: 8px 4px !important;
    font-size: 0.76rem !important;
    text-align: center !important;
    border-radius: var(--border-radius-pill) !important;
    white-space: nowrap !important;
  }

  /* AIチャットデモのレスポンシブ対応 */
  .chat-demo-container {
    height: 400px;
  }

  .chat-demo-options {
    padding: 12px;
    gap: 8px;
  }

  .chat-opt-btn {
    padding: 6px 12px;
    font-size: 0.8rem;
  }

  /* 【お誘い比較のスマホ最適化】テーブルを隠し、美しい専用カード形式へ変更（見せ方の切り替え） */
  .table-wrap {
    display: none; /* スマホではテーブルを表示しない */
  }

  .compare-mobile-cards {
    display: flex; /* 代わりにカード型リストを表示 */
    flex-direction: column;
    gap: 16px;
    max-width: 480px;
    margin: 0 auto;
  }

  .compare-m-card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--border-radius-md);
    box-shadow: var(--glass-shadow);
    overflow: hidden;
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    transition: var(--transition-smooth);
    text-align: left;
  }

  .compare-m-header {
    background: rgba(108, 92, 231, 0.06);
    padding: 14px 18px;
    font-weight: 800;
    color: var(--text-primary);
    font-size: 0.95rem;
    border-bottom: 1px solid rgba(0, 0, 0, 0.03);
  }

  .compare-m-body {
    padding: 8px 0;
  }

  .compare-m-row {
    padding: 10px 18px;
    display: flex;
    flex-direction: column;
    gap: 3px;
    border-bottom: 1px solid rgba(0, 0, 0, 0.02);
  }

  .compare-m-row:last-child {
    border-bottom: none;
  }

  .compare-m-row.highlight {
    background: rgba(108, 92, 231, 0.03);
  }

  .compare-m-platform {
    font-size: 0.72rem;
    font-weight: 800;
    color: var(--text-light);
  }

  .compare-m-row.highlight .compare-m-platform {
    color: var(--primary-color);
  }

  .compare-m-result {
    font-size: 0.88rem;
    font-weight: 600;
    color: var(--text-secondary);
  }

  .compare-m-row.highlight .compare-m-result {
    color: var(--text-primary);
    font-weight: 700;
  }
}

@media (max-width: 576px) {
  /* 超小型スマホ向けの崩れ対策 */
  .container {
    padding: 0 16px;
  }

  .hero-tagline {
    font-size: 1.85rem;
  }

  .hero-description {
    font-size: 0.98rem;
    margin-bottom: 24px;
  }

  .hero-btns {
    flex-direction: column;
    width: 100%;
    gap: 12px;
  }

  .hero-btns .btn {
    width: 100%;
  }

  .glass-card {
    padding: 24px 20px;
  }

  /* 料金プラン内のリスト項目のはみ出し・崩れ対策 */
  .plan-price {
    font-size: 2.5rem;
  }

  .plan-features {
    grid-template-columns: 1fr; /* 2カラムから1カラムに切り替えて文字被りを防止 */
    gap: 12px;
  }

  /* 超小型スマホ向けの料金プランタブ微調整 */
  .pricing-controls {
    max-width: 100% !important;
  }

  .pricing-tab {
    font-size: 0.68rem !important;
    padding: 6px 2px !important;
  }
}

/* --- Expandable Accordion Card for Concept --- */
.glass-card.expandable-card {
  cursor: pointer;
  position: relative;
  transition: var(--transition-smooth);
}

.glass-card.expandable-card:hover {
  background: var(--glass-bg-hover);
  transform: translateY(-5px);
  box-shadow: var(--glass-shadow-hover);
}

.glass-card.expandable-card .feature-description {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.3s ease, margin-top 0.3s ease;
  opacity: 0;
  margin-top: 0;
}

.glass-card.expandable-card.card-expanded .feature-description {
  max-height: 300px;
  opacity: 1;
  margin-top: 12px;
}

.glass-card.expandable-card .expand-trigger {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--primary-color);
  margin-top: 12px;
  transition: var(--transition-fast);
}

.glass-card.expandable-card .expand-trigger i {
  transition: transform 0.3s ease;
}

.glass-card.expandable-card.card-expanded .expand-trigger i {
  transform: rotate(180deg);
}