/* ============================================
   TSUKIGRAPH - Design System
   Dawn × Editorial × Life × Memory
   ============================================ */

@import url('https://fonts.googleapis.com/css2?family=Cormorant+Garamond:ital,wght@0,300;0,400;0,500;0,600;0,700;1,300;1,400;1,500&family=Noto+Sans+JP:wght@300;400;500;600;700&family=Noto+Serif+JP:wght@300;400;500;600;700&family=Inter:wght@300;400;500;600;700&display=swap');

/* ---- CSS Variables / Design Tokens ---- */
:root {
  /* Colors - Dark Mode (Default) */
  --bg-primary: #0B0F1A;
  --bg-secondary: #111827;
  --bg-surface: #1E293B;
  --bg-card: #1A2235;
  --bg-hover: #243044;

  /* Accent Colors */
  --accent-blue: #3A7DFF;
  --accent-blue-light: #6FA3FF;
  --accent-blue-dark: #1A5BDB;
  --accent-soft: #EEF4FF;
  --accent-gold: #D4A853;
  --accent-moon: #C8D5E8;
  --accent-dawn: #FF8C5A;
  --accent-aurora: #7B5EA7;

  /* Text Colors */
  --text-primary: #F1F5F9;
  --text-secondary: #94A3B8;
  --text-muted: #64748B;
  --text-accent: #3A7DFF;

  /* Border Colors */
  --border-subtle: rgba(255,255,255,0.06);
  --border-default: rgba(255,255,255,0.12);
  --border-strong: rgba(255,255,255,0.25);
  --border-accent: rgba(58,125,255,0.4);

  /* Gradients */
  --grad-dawn: linear-gradient(135deg, #0B0F1A 0%, #1a1f35 40%, #0d1829 70%, #0B0F1A 100%);
  --grad-aurora: linear-gradient(135deg, #0B0F1A 0%, #1a1535 50%, #0B0F1A 100%);
  --grad-blue: linear-gradient(135deg, #1e3a7a 0%, #3A7DFF 100%);
  --grad-card: linear-gradient(135deg, rgba(30,41,59,0.8) 0%, rgba(15,23,42,0.9) 100%);

  /* Spacing (8pt grid) */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 20px;
  --space-6: 24px;
  --space-8: 32px;
  --space-10: 40px;
  --space-12: 48px;
  --space-16: 64px;
  --space-20: 80px;
  --space-24: 96px;
  --space-32: 128px;

  /* Typography */
  --font-sans: 'Noto Sans JP', 'Inter', sans-serif;
  --font-serif: 'Noto Serif JP', Georgia, serif;
  --font-cormorant: 'Cormorant Garamond', 'Noto Serif JP', Georgia, serif;
  --font-mono: 'Courier New', monospace;

  /* Border Radius */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.3);
  --shadow-md: 0 4px 24px rgba(0,0,0,0.4);
  --shadow-lg: 0 8px 48px rgba(0,0,0,0.5);
  --shadow-xl: 0 16px 80px rgba(0,0,0,0.6);
  --shadow-glow: 0 0 40px rgba(58,125,255,0.2);
  --shadow-glow-soft: 0 0 80px rgba(58,125,255,0.08);

  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-base: 0.3s ease;
  --transition-slow: 0.5s ease;
  --transition-spring: 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* Light variant for Parent Portal */
.theme-light {
  --bg-primary: #F8FAFC;
  --bg-secondary: #FFFFFF;
  --bg-surface: #FFFFFF;
  --bg-card: #FFFFFF;
  --bg-hover: #F1F5F9;
  --text-primary: #1E293B;
  --text-secondary: #475569;
  --text-muted: #94A3B8;
  --border-subtle: rgba(0,0,0,0.05);
  --border-default: rgba(0,0,0,0.1);
  --border-strong: rgba(0,0,0,0.2);
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 24px rgba(0,0,0,0.08);
}

/* Pop variant for Student Hub */
.theme-pop {
  --bg-primary: #0F172A;
  --accent-blue: #4F8EFF;
  --accent-secondary: #FF6B9D;
  --accent-tertiary: #FFD166;
  --accent-green: #06D6A0;
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  font-size: 16px;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ---- Typography ---- */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-sans);
  line-height: 1.2;
  letter-spacing: -0.02em;
  font-weight: 700;
}

h1 { font-size: clamp(36px, 5vw, 64px); letter-spacing: -0.03em; }
h2 { font-size: clamp(28px, 4vw, 48px); letter-spacing: -0.02em; }
h3 { font-size: clamp(22px, 3vw, 32px); letter-spacing: -0.01em; }
h4 { font-size: clamp(18px, 2.5vw, 24px); }
h5 { font-size: 20px; font-weight: 600; }
h6 { font-size: 18px; font-weight: 600; }

p { line-height: 1.7; color: var(--text-secondary); }

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

a:hover { color: var(--accent-blue); }

/* ---- Layout Containers ---- */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-6);
}

.container-wide {
  max-width: 1440px;
  margin: 0 auto;
  padding: 0 var(--space-8);
}

.container-narrow {
  max-width: 800px;
  margin: 0 auto;
  padding: 0 var(--space-6);
}

/* ---- Section ---- */
.section {
  padding: var(--space-24) 0;
}

.section-sm {
  padding: var(--space-16) 0;
}

.section-lg {
  padding: var(--space-32) 0;
}

/* ---- Grid ---- */
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--space-8); }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-6); }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-6); }

@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .container { padding: 0 var(--space-4); }
}

/* ---- Navigation ---- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: var(--space-4) 0;
  transition: all var(--transition-base);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  background: rgba(11, 15, 26, 0.7);
  border-bottom: 1px solid var(--border-subtle);
}

.nav.scrolled {
  background: rgba(11, 15, 26, 0.95);
  padding: var(--space-3) 0;
  border-bottom-color: var(--border-default);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-6);
}

.nav-logo {
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -0.02em;
  background: linear-gradient(135deg, var(--text-primary) 0%, var(--accent-moon) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.nav-logo-icon {
  width: 32px;
  height: 32px;
  background: var(--grad-blue);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-8);
  list-style: none;
}

.nav-links a {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color var(--transition-fast);
  letter-spacing: 0.01em;
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  right: 0;
  height: 1px;
  background: var(--accent-blue);
  transform: scaleX(0);
  transition: transform var(--transition-base);
}

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

.nav-links a:hover::after {
  transform: scaleX(1);
}

.nav-cta {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.nav-menu-btn {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: var(--space-2);
  background: none;
  border: none;
}

.nav-menu-btn span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: all var(--transition-base);
}

/* Mobile Nav */
.mobile-nav {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 999;
  background: rgba(11, 15, 26, 0.98);
  backdrop-filter: blur(20px);
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-8);
}

.mobile-nav.open {
  display: flex;
}

.mobile-nav a {
  font-size: 28px;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.02em;
  transition: color var(--transition-fast);
}

.mobile-nav a:hover { color: var(--accent-blue); }

@media (max-width: 768px) {
  .nav-links { display: none; }
  .nav-menu-btn { display: flex; }
  .nav-cta .btn-sm { display: none; }
}

/* ---- Buttons ---- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: 12px 28px;
  border-radius: var(--radius-full);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.02em;
  cursor: pointer;
  transition: all var(--transition-base);
  border: none;
  text-decoration: none;
  white-space: nowrap;
  font-family: var(--font-sans);
}

.btn-primary {
  background: var(--accent-blue);
  color: white;
  box-shadow: 0 4px 16px rgba(58,125,255,0.3);
}

.btn-primary:hover {
  background: var(--accent-blue-light);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(58,125,255,0.4);
  color: white;
}

.btn-secondary {
  background: transparent;
  color: var(--text-primary);
  border: 1px solid var(--border-default);
}

.btn-secondary:hover {
  border-color: var(--accent-blue);
  color: var(--accent-blue);
  transform: translateY(-2px);
}

.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
  padding: 8px 16px;
}

.btn-ghost:hover {
  color: var(--text-primary);
  background: var(--bg-surface);
}

.btn-sm {
  padding: 8px 20px;
  font-size: 13px;
}

.btn-lg {
  padding: 16px 40px;
  font-size: 16px;
}

.btn-pop {
  background: linear-gradient(135deg, #FF6B9D, #4F8EFF);
  color: white;
  box-shadow: 0 4px 20px rgba(255,107,157,0.3);
}

.btn-pop:hover {
  transform: translateY(-3px) scale(1.02);
  box-shadow: 0 8px 32px rgba(255,107,157,0.5);
  color: white;
}

/* ---- Cards ---- */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(58,125,255,0.3), transparent);
  opacity: 0;
  transition: opacity var(--transition-base);
}

.card:hover {
  border-color: var(--border-accent);
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg), var(--shadow-glow-soft);
}

.card:hover::before {
  opacity: 1;
}

.card-minimal {
  background: transparent;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: var(--space-6);
}

.card-minimal:hover {
  background: var(--bg-surface);
  border-color: var(--border-default);
}

.card-highlight {
  background: linear-gradient(135deg, rgba(58,125,255,0.1) 0%, rgba(30,41,59,0.9) 100%);
  border: 1px solid var(--border-accent);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
}

/* ---- Hero ---- */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  background: var(--grad-dawn);
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.15;
  animation: float 8s ease-in-out infinite;
}

.hero-orb-1 {
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, #3A7DFF, transparent);
  top: -200px;
  right: -100px;
  animation-delay: 0s;
}

.hero-orb-2 {
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, #7B5EA7, transparent);
  bottom: -100px;
  left: -50px;
  animation-delay: -3s;
}

.hero-orb-3 {
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, #D4A853, transparent);
  top: 50%;
  left: 50%;
  animation-delay: -6s;
}

@keyframes float {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(-20px, -30px) scale(1.05); }
  66% { transform: translate(20px, 20px) scale(0.95); }
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-6);
  padding-top: var(--space-24);
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent-blue);
  background: rgba(58,125,255,0.1);
  border: 1px solid rgba(58,125,255,0.2);
  padding: 6px 16px;
  border-radius: var(--radius-full);
  margin-bottom: var(--space-8);
  animation: fadeInUp 0.8s ease forwards;
}

.hero-title {
  font-size: clamp(44px, 6vw, 80px);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: var(--space-8);
  animation: fadeInUp 0.8s ease 0.1s both;
}

.hero-title .accent {
  background: linear-gradient(135deg, var(--accent-blue) 0%, var(--accent-moon) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-title .accent-gold {
  background: linear-gradient(135deg, var(--accent-gold) 0%, #F0D080 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: clamp(16px, 2vw, 20px);
  color: var(--text-secondary);
  max-width: 600px;
  line-height: 1.8;
  margin-bottom: var(--space-10);
  animation: fadeInUp 0.8s ease 0.2s both;
}

.hero-actions {
  display: flex;
  gap: var(--space-4);
  flex-wrap: wrap;
  animation: fadeInUp 0.8s ease 0.3s both;
}

.hero-scroll-indicator {
  position: absolute;
  bottom: var(--space-8);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
  color: var(--text-muted);
  font-size: 12px;
  letter-spacing: 0.1em;
  animation: bounce 2s ease-in-out infinite;
}

@keyframes bounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(-8px); }
}

/* ---- Moon Animation ---- */
.moon-container {
  position: relative;
  display: inline-block;
}

.moon-glow {
  position: absolute;
  inset: -40px;
  background: radial-gradient(circle, rgba(58,125,255,0.15) 0%, transparent 70%);
  border-radius: 50%;
  animation: moonPulse 4s ease-in-out infinite;
}

@keyframes moonPulse {
  0%, 100% { opacity: 0.6; transform: scale(1); }
  50% { opacity: 1; transform: scale(1.1); }
}

/* ---- Star Field ---- */
.stars {
  position: absolute;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
}

.star {
  position: absolute;
  background: white;
  border-radius: 50%;
  animation: twinkle var(--duration, 3s) ease-in-out infinite;
  animation-delay: var(--delay, 0s);
}

@keyframes twinkle {
  0%, 100% { opacity: 0.3; transform: scale(1); }
  50% { opacity: 1; transform: scale(1.5); }
}

/* ---- Persona Gate ---- */
.persona-gate {
  padding: var(--space-24) 0;
}

.persona-card {
  position: relative;
  border-radius: var(--radius-xl);
  padding: var(--space-12) var(--space-10);
  overflow: hidden;
  cursor: pointer;
  transition: all var(--transition-spring);
  border: 1px solid var(--border-subtle);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  min-height: 280px;
}

.persona-card::before {
  content: '';
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity var(--transition-base);
}

.persona-card:hover {
  transform: translateY(-8px) scale(1.02);
  box-shadow: var(--shadow-xl);
}

.persona-card:hover::before {
  opacity: 1;
}

/* Public - シック */
.persona-public {
  background: linear-gradient(135deg, #1a1f35 0%, #0f1629 100%);
  border-color: rgba(58,125,255,0.2);
}

.persona-public::before {
  background: linear-gradient(135deg, rgba(58,125,255,0.1) 0%, transparent 100%);
}

/* Parent - 固い */
.persona-parent {
  background: linear-gradient(135deg, #1a2030 0%, #111827 100%);
  border-color: rgba(100,130,200,0.2);
}

.persona-parent::before {
  background: linear-gradient(135deg, rgba(100,130,200,0.08) 0%, transparent 100%);
}

/* Student - POP */
.persona-student {
  background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
  border-color: rgba(255,107,157,0.3);
}

.persona-student::before {
  background: linear-gradient(135deg, rgba(255,107,157,0.1) 0%, rgba(79,142,255,0.05) 100%);
}

.persona-icon {
  font-size: 40px;
  display: block;
  margin-bottom: var(--space-2);
}

.persona-tag {
  display: inline-block;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 4px 12px;
  border-radius: var(--radius-full);
  margin-bottom: var(--space-4);
}

.persona-tag-blue { background: rgba(58,125,255,0.15); color: var(--accent-blue); }
.persona-tag-navy { background: rgba(100,130,200,0.12); color: #8BA3D4; }
.persona-tag-pink { background: rgba(255,107,157,0.15); color: #FF6B9D; }

.persona-title {
  font-size: clamp(22px, 3vw, 32px);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-3);
}

.persona-desc {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.7;
  flex: 1;
}

.persona-cta {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: 14px;
  font-weight: 600;
  color: var(--accent-blue);
  margin-top: var(--space-4);
  transition: gap var(--transition-fast);
}

.persona-card:hover .persona-cta {
  gap: var(--space-3);
}

/* Pop style for student persona */
.persona-student .persona-cta { color: #FF6B9D; }
.persona-student .persona-title {
  background: linear-gradient(135deg, #FF6B9D, #4F8EFF, #FFD166);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ---- Tag / Badge ---- */
.tag {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 12px;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: var(--radius-full);
  border: 1px solid var(--border-default);
  color: var(--text-secondary);
  background: var(--bg-surface);
  transition: all var(--transition-fast);
}

.tag-blue { background: rgba(58,125,255,0.1); color: var(--accent-blue); border-color: rgba(58,125,255,0.2); }
.tag-gold { background: rgba(212,168,83,0.1); color: var(--accent-gold); border-color: rgba(212,168,83,0.2); }
.tag-green { background: rgba(16,185,129,0.1); color: #10B981; border-color: rgba(16,185,129,0.2); }
.tag-purple { background: rgba(123,94,167,0.1); color: #9B72CF; border-color: rgba(123,94,167,0.2); }
.tag-pink { background: rgba(255,107,157,0.1); color: #FF6B9D; border-color: rgba(255,107,157,0.2); }
.tag-red { background: rgba(239,68,68,0.1); color: #EF4444; border-color: rgba(239,68,68,0.2); }

/* ---- Section Header ---- */
.section-header {
  text-align: center;
  margin-bottom: var(--space-16);
}

.section-eyebrow {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent-blue);
  margin-bottom: var(--space-4);
}

.section-title {
  font-size: clamp(28px, 4vw, 48px);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-4);
}

.section-desc {
  font-size: 18px;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto;
  line-height: 1.7;
}

/* ---- Article Cards ---- */
.article-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition-base);
  display: flex;
  flex-direction: column;
}

.article-card:hover {
  border-color: var(--border-accent);
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.article-card-img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  background: linear-gradient(135deg, var(--bg-surface), var(--bg-hover));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 48px;
  color: var(--text-muted);
}

.article-card-body {
  padding: var(--space-6);
  flex: 1;
  display: flex;
  flex-direction: column;
}

.article-card-meta {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-3);
  font-size: 12px;
  color: var(--text-muted);
}

.article-card-title {
  font-size: 18px;
  font-weight: 600;
  line-height: 1.4;
  letter-spacing: -0.01em;
  margin-bottom: var(--space-3);
  color: var(--text-primary);
}

.article-card-excerpt {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
  flex: 1;
}

.article-card-footer {
  margin-top: var(--space-4);
  padding-top: var(--space-4);
  border-top: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* ---- Pagination ---- */
.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  margin-top: var(--space-12);
}

.pagination-btn {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: 600;
  border: 1px solid var(--border-default);
  background: var(--bg-card);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.pagination-btn:hover {
  border-color: var(--accent-blue);
  color: var(--accent-blue);
}

.pagination-btn.active {
  background: var(--accent-blue);
  border-color: var(--accent-blue);
  color: white;
}

.pagination-btn:disabled {
  opacity: 0.3;
  cursor: not-allowed;
}

/* ---- Table ---- */
.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}

.data-table th {
  text-align: left;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
  padding: var(--space-4) var(--space-6);
  border-bottom: 1px solid var(--border-default);
  white-space: nowrap;
}

.data-table td {
  padding: var(--space-4) var(--space-6);
  border-bottom: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  vertical-align: middle;
}

.data-table tr:hover td {
  background: var(--bg-hover);
  color: var(--text-primary);
}

.data-table tr:last-child td {
  border-bottom: none;
}

/* ---- Forms ---- */
.form-group {
  margin-bottom: var(--space-6);
}

.form-label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: var(--space-2);
  letter-spacing: 0.02em;
}

.form-input, .form-select, .form-textarea {
  width: 100%;
  background: var(--bg-surface);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-sm);
  padding: 10px 16px;
  font-size: 14px;
  color: var(--text-primary);
  font-family: var(--font-sans);
  transition: all var(--transition-fast);
  outline: none;
}

.form-input:focus, .form-select:focus, .form-textarea:focus {
  border-color: var(--accent-blue);
  box-shadow: 0 0 0 3px rgba(58,125,255,0.15);
}

.form-input::placeholder { color: var(--text-muted); }

.form-textarea {
  min-height: 120px;
  resize: vertical;
}

.form-select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%2364748B'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M19 9l-7 7-7-7'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  background-size: 16px;
  padding-right: 40px;
  cursor: pointer;
}

.form-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-4);
}

/* ---- Filter Bar ---- */
.filter-bar {
  display: flex;
  gap: var(--space-3);
  flex-wrap: wrap;
  align-items: center;
  margin-bottom: var(--space-8);
  padding: var(--space-4);
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-subtle);
}

.filter-chip {
  padding: 6px 16px;
  border-radius: var(--radius-full);
  font-size: 13px;
  font-weight: 600;
  border: 1px solid var(--border-default);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
  background: transparent;
  font-family: var(--font-sans);
}

.filter-chip:hover, .filter-chip.active {
  background: var(--accent-blue);
  border-color: var(--accent-blue);
  color: white;
}

.search-box {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  flex: 1;
  min-width: 200px;
}

.search-box input {
  background: var(--bg-surface);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-sm);
  padding: 8px 14px;
  font-size: 13px;
  color: var(--text-primary);
  width: 100%;
  outline: none;
  font-family: var(--font-sans);
  transition: border-color var(--transition-fast);
}

.search-box input:focus {
  border-color: var(--accent-blue);
}

/* ---- Footer ---- */
.footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-subtle);
  padding: var(--space-20) 0 var(--space-10);
  margin-top: var(--space-24);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-10);
  margin-bottom: var(--space-12);
}

.footer-brand p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.7;
  margin-top: var(--space-4);
  max-width: 280px;
}

.footer-col-title {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-secondary);
  margin-bottom: var(--space-4);
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.footer-links a {
  font-size: 14px;
  color: var(--text-muted);
  transition: color var(--transition-fast);
}

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

.footer-bottom {
  padding-top: var(--space-8);
  border-top: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 13px;
  color: var(--text-muted);
}

@media (max-width: 768px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-8);
  }
  .footer-brand {
    grid-column: 1 / -1;
  }
  .footer-bottom {
    flex-direction: column;
    gap: var(--space-4);
    text-align: center;
  }
}

/* ---- Dashboard ---- */
.dashboard-layout {
  display: grid;
  grid-template-columns: 260px 1fr;
  min-height: 100vh;
}

.dashboard-sidebar {
  background: var(--bg-secondary);
  border-right: 1px solid var(--border-subtle);
  padding: var(--space-6);
  padding-top: 80px;
  position: sticky;
  top: 0;
  height: 100vh;
  overflow-y: auto;
}

.dashboard-main {
  padding: var(--space-8);
  padding-top: 88px;
  overflow-y: auto;
}

.sidebar-nav {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  margin-top: var(--space-8);
}

.sidebar-nav-item a {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: 10px var(--space-4);
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
  transition: all var(--transition-fast);
}

.sidebar-nav-item a:hover,
.sidebar-nav-item.active a {
  background: var(--bg-surface);
  color: var(--text-primary);
}

.sidebar-nav-item.active a {
  background: rgba(58,125,255,0.1);
  color: var(--accent-blue);
}

.sidebar-section-title {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
  padding: var(--space-4) var(--space-4) var(--space-2);
  margin-top: var(--space-6);
}

.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.stat-value {
  font-size: 36px;
  font-weight: 700;
  letter-spacing: -0.03em;
  background: linear-gradient(135deg, var(--text-primary), var(--accent-moon));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.stat-label {
  font-size: 13px;
  color: var(--text-muted);
  font-weight: 500;
}

.stat-trend {
  font-size: 12px;
  display: flex;
  align-items: center;
  gap: 4px;
}

.stat-trend.up { color: #10B981; }
.stat-trend.down { color: #EF4444; }

@media (max-width: 768px) {
  .dashboard-layout {
    grid-template-columns: 1fr;
  }
  .dashboard-sidebar {
    display: none;
  }
}

/* ---- Animations ---- */
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeInDown {
  from { opacity: 0; transform: translateY(-20px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes slideInLeft {
  from { opacity: 0; transform: translateX(-20px); }
  to { opacity: 1; transform: translateX(0); }
}

@keyframes scaleIn {
  from { opacity: 0; transform: scale(0.95); }
  to { opacity: 1; transform: scale(1); }
}

@keyframes shimmer {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}

.animate-fade-in { animation: fadeIn var(--transition-base) forwards; }
.animate-fade-in-up { animation: fadeInUp 0.6s ease forwards; }
.animate-scale-in { animation: scaleIn 0.4s ease forwards; }

/* Intersection Observer based animations */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

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

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }

/* ---- Loading / Skeleton ---- */
.skeleton {
  background: linear-gradient(90deg, var(--bg-surface) 25%, var(--bg-hover) 50%, var(--bg-surface) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  border-radius: var(--radius-sm);
}

/* ---- Moon Loading ---- */
.moon-loader {
  width: 48px;
  height: 48px;
  position: relative;
  margin: 0 auto;
}

.moon-loader::before {
  content: '🌙';
  font-size: 32px;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  animation: moonSpin 2s ease-in-out infinite;
}

@keyframes moonSpin {
  0% { transform: translate(-50%, -50%) rotate(0deg); }
  50% { transform: translate(-50%, -50%) rotate(180deg) scale(1.2); }
  100% { transform: translate(-50%, -50%) rotate(360deg); }
}

/* ---- Divider ---- */
.divider {
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border-default), transparent);
  margin: var(--space-12) 0;
}

/* ---- Quote ---- */
.quote-block {
  border-left: 3px solid var(--accent-blue);
  padding: var(--space-6) var(--space-8);
  background: rgba(58,125,255,0.05);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  font-family: var(--font-serif);
  font-size: 20px;
  line-height: 1.7;
  color: var(--text-primary);
  font-style: italic;
}

/* ---- Timeline ---- */
.timeline {
  position: relative;
  padding-left: var(--space-8);
}

.timeline::before {
  content: '';
  position: absolute;
  left: 16px;
  top: 0;
  bottom: 0;
  width: 1px;
  background: linear-gradient(180deg, var(--accent-blue), transparent);
}

.timeline-item {
  position: relative;
  padding-bottom: var(--space-10);
}

.timeline-item::before {
  content: '';
  position: absolute;
  left: calc(-1 * var(--space-8) + 12px);
  top: 6px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--accent-blue);
  border: 2px solid var(--bg-primary);
  box-shadow: 0 0 12px rgba(58,125,255,0.5);
}

.timeline-date {
  font-size: 12px;
  color: var(--accent-blue);
  font-weight: 600;
  letter-spacing: 0.05em;
  margin-bottom: var(--space-2);
}

/* ---- Progress Bar ---- */
.progress-bar {
  height: 6px;
  background: var(--bg-surface);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--accent-blue), var(--accent-blue-light));
  border-radius: var(--radius-full);
  transition: width var(--transition-slow);
}

/* ---- Modal ---- */
.modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 2000;
  background: rgba(0,0,0,0.7);
  backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-6);
  animation: fadeIn 0.2s ease;
}

.modal {
  background: var(--bg-card);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-xl);
  padding: var(--space-10);
  max-width: 600px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  animation: scaleIn 0.3s ease;
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-6);
}

.modal-close {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: 1px solid var(--border-default);
  background: transparent;
  color: var(--text-secondary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  transition: all var(--transition-fast);
}

.modal-close:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}

/* ---- Breadcrumb ---- */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: var(--space-6);
}

.breadcrumb a {
  color: var(--text-muted);
  transition: color var(--transition-fast);
}

.breadcrumb a:hover { color: var(--accent-blue); }
.breadcrumb span { opacity: 0.5; }

/* ---- Tabs ---- */
.tabs {
  display: flex;
  gap: 0;
  border-bottom: 1px solid var(--border-default);
  margin-bottom: var(--space-8);
  overflow-x: auto;
  scrollbar-width: none;
}

.tabs::-webkit-scrollbar { display: none; }

.tab {
  padding: 12px var(--space-6);
  font-size: 14px;
  font-weight: 600;
  color: var(--text-secondary);
  border-bottom: 2px solid transparent;
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
  background: none;
  border-top: none;
  border-left: none;
  border-right: none;
  font-family: var(--font-sans);
}

.tab:hover { color: var(--text-primary); }
.tab.active {
  color: var(--accent-blue);
  border-bottom-color: var(--accent-blue);
}

/* ---- Alert / Notice ---- */
.alert {
  display: flex;
  gap: var(--space-4);
  padding: var(--space-4) var(--space-6);
  border-radius: var(--radius-md);
  font-size: 14px;
  border: 1px solid;
}

.alert-info { background: rgba(58,125,255,0.08); border-color: rgba(58,125,255,0.2); color: var(--text-primary); }
.alert-success { background: rgba(16,185,129,0.08); border-color: rgba(16,185,129,0.2); color: var(--text-primary); }
.alert-warning { background: rgba(245,158,11,0.08); border-color: rgba(245,158,11,0.2); color: var(--text-primary); }
.alert-error { background: rgba(239,68,68,0.08); border-color: rgba(239,68,68,0.2); color: var(--text-primary); }

/* ---- Accordion ---- */
.accordion-item {
  border-bottom: 1px solid var(--border-subtle);
}

.accordion-btn {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-5) 0;
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  font-family: var(--font-sans);
  text-align: left;
  transition: color var(--transition-fast);
}

.accordion-btn:hover { color: var(--accent-blue); }

.accordion-icon {
  font-size: 20px;
  transition: transform var(--transition-base);
  color: var(--text-muted);
  flex-shrink: 0;
}

.accordion-item.open .accordion-icon {
  transform: rotate(45deg);
  color: var(--accent-blue);
}

.accordion-body {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-slow), padding var(--transition-base);
}

.accordion-item.open .accordion-body {
  max-height: 500px;
  padding-bottom: var(--space-5);
}

.accordion-body p {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ---- Pop/Student Specific ---- */
.pop-card {
  background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
  border: 1px solid rgba(255,107,157,0.2);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  transition: all var(--transition-spring);
  position: relative;
  overflow: hidden;
}

.pop-card::after {
  content: '';
  position: absolute;
  top: -50%;
  right: -50%;
  width: 200px;
  height: 200px;
  background: radial-gradient(circle, rgba(255,107,157,0.1), transparent);
  border-radius: 50%;
  animation: float 6s ease-in-out infinite;
}

.pop-card:hover {
  transform: translateY(-6px) rotate(-1deg);
  box-shadow: 0 16px 48px rgba(255,107,157,0.2);
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.05em;
  padding: 4px 10px;
  border-radius: var(--radius-full);
  position: relative;
}

.badge-gold {
  background: linear-gradient(135deg, var(--accent-gold), #F0D080);
  color: #000;
}

.badge-rainbow {
  background: linear-gradient(135deg, #FF6B9D, #4F8EFF, #FFD166);
  color: white;
}

/* ---- Notification Dot ---- */
.notif-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #EF4444;
  display: inline-block;
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.3); opacity: 0.7; }
}

/* ---- Page Header ---- */
.page-header {
  padding: calc(var(--space-24) + 60px) 0 var(--space-16);
  background: linear-gradient(180deg, var(--bg-secondary) 0%, var(--bg-primary) 100%);
  position: relative;
  overflow: hidden;
}

.page-header::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border-default), transparent);
}

/* ---- Back to top ---- */
.back-to-top {
  position: fixed;
  bottom: var(--space-8);
  right: var(--space-8);
  width: 48px;
  height: 48px;
  background: var(--accent-blue);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 20px;
  cursor: pointer;
  opacity: 0;
  transform: translateY(20px);
  transition: all var(--transition-base);
  box-shadow: var(--shadow-md);
  z-index: 500;
  border: none;
}

.back-to-top.visible {
  opacity: 1;
  transform: translateY(0);
}

.back-to-top:hover {
  background: var(--accent-blue-light);
  transform: translateY(-4px);
}

/* ---- Utility Classes ---- */
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-accent { color: var(--accent-blue); }
.text-muted { color: var(--text-muted); }
.text-secondary { color: var(--text-secondary); }
.text-small { font-size: 13px; }
.text-xs { font-size: 12px; }
.text-serif { font-family: var(--font-serif); }

.flex { display: flex; }
.flex-center { display: flex; align-items: center; justify-content: center; }
.flex-between { display: flex; align-items: center; justify-content: space-between; }
.flex-col { display: flex; flex-direction: column; }
.gap-2 { gap: var(--space-2); }
.gap-4 { gap: var(--space-4); }
.gap-6 { gap: var(--space-6); }
.gap-8 { gap: var(--space-8); }
.items-center { align-items: center; }
.flex-wrap { flex-wrap: wrap; }

.w-full { width: 100%; }
.mt-4 { margin-top: var(--space-4); }
.mt-6 { margin-top: var(--space-6); }
.mt-8 { margin-top: var(--space-8); }
.mb-4 { margin-bottom: var(--space-4); }
.mb-6 { margin-bottom: var(--space-6); }
.mb-8 { margin-bottom: var(--space-8); }

.hidden { display: none; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0,0,0,0); }

/* Scrollbar */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--bg-primary); }
::-webkit-scrollbar-thumb { background: var(--bg-hover); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-muted); }

/* Selection */
::selection { background: rgba(58,125,255,0.3); color: var(--text-primary); }

/* ============================================
   TSUKIGRAPH - Advanced Animations & Gimmicks
   月相ローディング・パーティクル・その他
   ============================================ */

/* ---- Moon Phase Loader ---- */
.moon-loader-overlay {
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: #0B0F1A;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 24px;
  transition: opacity 0.6s ease, visibility 0.6s ease;
}

.moon-loader-overlay.hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.moon-phase-container {
  position: relative;
  width: 80px;
  height: 80px;
}

.moon-phase {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: radial-gradient(circle at 35% 35%, #E8D5B7, #C8B99A 40%, #8A7660 100%);
  position: relative;
  box-shadow: 0 0 40px rgba(200, 180, 154, 0.3), 0 0 80px rgba(200, 180, 154, 0.1);
  animation: moonRotate 2s ease-in-out infinite;
}

.moon-phase::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background: #0B0F1A;
  clip-path: ellipse(50% 50% at 70% 50%);
  animation: moonShadow 2s ease-in-out infinite;
}

@keyframes moonRotate {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

@keyframes moonShadow {
  0%, 100% { clip-path: ellipse(70% 50% at 80% 50%); }
  25% { clip-path: ellipse(50% 50% at 70% 50%); }
  50% { clip-path: ellipse(0% 0% at 50% 50%); opacity: 0; }
  75% { clip-path: ellipse(50% 50% at 30% 50%); }
}

.moon-loader-text {
  font-size: 13px;
  letter-spacing: 0.2em;
  color: rgba(200, 213, 232, 0.6);
  animation: loaderTextPulse 1.5s ease-in-out infinite;
}

.moon-loader-phases {
  display: flex;
  gap: 12px;
  align-items: center;
}

.moon-loader-phases span {
  font-size: 20px;
  opacity: 0.2;
  animation: phaseReveal 2s ease-in-out infinite;
}
.moon-loader-phases span:nth-child(1) { animation-delay: 0s; }
.moon-loader-phases span:nth-child(2) { animation-delay: 0.25s; }
.moon-loader-phases span:nth-child(3) { animation-delay: 0.5s; }
.moon-loader-phases span:nth-child(4) { animation-delay: 0.75s; }
.moon-loader-phases span:nth-child(5) { animation-delay: 1s; }
.moon-loader-phases span:nth-child(6) { animation-delay: 1.25s; }
.moon-loader-phases span:nth-child(7) { animation-delay: 1.5s; }
.moon-loader-phases span:nth-child(8) { animation-delay: 1.75s; }

@keyframes phaseReveal {
  0%, 100% { opacity: 0.15; transform: scale(1); }
  50% { opacity: 1; transform: scale(1.3); }
}

@keyframes loaderTextPulse {
  0%, 100% { opacity: 0.4; }
  50% { opacity: 1; }
}

/* ---- Typewriter Effect ---- */
.typewriter {
  overflow: hidden;
  white-space: nowrap;
  border-right: 2px solid var(--accent-blue);
  animation: typewriterCursor 0.8s step-end infinite;
}

@keyframes typewriterCursor {
  0%, 100% { border-color: var(--accent-blue); }
  50% { border-color: transparent; }
}

/* ---- Gradient Text Shimmer ---- */
.shimmer-text {
  background: linear-gradient(
    90deg,
    var(--text-primary) 0%,
    var(--accent-blue-light) 30%,
    var(--accent-moon) 50%,
    var(--accent-blue-light) 70%,
    var(--text-primary) 100%
  );
  background-size: 200% auto;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: shimmer 3s linear infinite;
}

@keyframes shimmer {
  to { background-position: 200% center; }
}

/* ---- Floating Particles ---- */
.particles-container {
  position: absolute;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
  z-index: 0;
}

.particle {
  position: absolute;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--accent-blue);
  opacity: 0;
  animation: particleFloat var(--duration, 8s) ease-in-out infinite;
  animation-delay: var(--delay, 0s);
}

@keyframes particleFloat {
  0% { opacity: 0; transform: translateY(100vh) scale(0); }
  10% { opacity: 0.6; }
  90% { opacity: 0.6; }
  100% { opacity: 0; transform: translateY(-100px) scale(1); }
}

/* ---- Glassmorphism Cards ---- */
.glass-card {
  background: rgba(30, 41, 59, 0.5);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
}

.glass-card:hover {
  background: rgba(30, 41, 59, 0.7);
  border-color: rgba(58, 125, 255, 0.3);
  transform: translateY(-4px);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4), 0 0 40px rgba(58, 125, 255, 0.1);
}

/* ---- Neon Glow Effects ---- */
.neon-blue {
  text-shadow: 0 0 10px rgba(58, 125, 255, 0.8), 0 0 20px rgba(58, 125, 255, 0.5), 0 0 40px rgba(58, 125, 255, 0.3);
}

.neon-gold {
  text-shadow: 0 0 10px rgba(212, 168, 83, 0.8), 0 0 20px rgba(212, 168, 83, 0.5);
}

.neon-border-blue {
  box-shadow: 0 0 10px rgba(58, 125, 255, 0.5), 0 0 20px rgba(58, 125, 255, 0.3), inset 0 0 10px rgba(58, 125, 255, 0.1);
  border-color: rgba(58, 125, 255, 0.6) !important;
}

/* ---- Parallax Section ---- */
.parallax-section {
  position: relative;
  overflow: hidden;
}

.parallax-bg {
  position: absolute;
  inset: -20%;
  background-size: cover;
  background-position: center;
  will-change: transform;
  transition: transform 0s linear;
}

/* ---- Page Transition ---- */
.page-enter {
  animation: pageEnter 0.5s ease forwards;
}

@keyframes pageEnter {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ---- Number Counter Animation ---- */
.count-up {
  display: inline-block;
  font-variant-numeric: tabular-nums;
}

/* ---- Scroll Progress Bar ---- */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--accent-blue), var(--accent-moon));
  z-index: 10001;
  transition: width 0.1s linear;
  box-shadow: 0 0 10px rgba(58, 125, 255, 0.5);
}

/* ---- Enhanced Persona Cards ---- */
.persona-public {
  background: linear-gradient(135deg, rgba(11,15,26,0.95) 0%, rgba(20,30,55,0.95) 100%);
  border-color: rgba(58, 125, 255, 0.2);
}

.persona-public::before {
  background: radial-gradient(ellipse at top, rgba(58,125,255,0.1), transparent 60%);
  opacity: 1;
}

.persona-public:hover {
  border-color: rgba(58, 125, 255, 0.5);
  box-shadow: 0 24px 80px rgba(58, 125, 255, 0.15), var(--shadow-xl);
}

.persona-parent {
  background: linear-gradient(135deg, rgba(15,25,50,0.95) 0%, rgba(20,35,65,0.95) 100%);
  border-color: rgba(59, 130, 246, 0.2);
}

.persona-parent::before {
  background: radial-gradient(ellipse at top, rgba(30,64,175,0.15), transparent 60%);
  opacity: 1;
}

.persona-parent:hover {
  border-color: rgba(59, 130, 246, 0.5);
  box-shadow: 0 24px 80px rgba(30,64,175,0.2), var(--shadow-xl);
}

.persona-student {
  background: linear-gradient(135deg, rgba(20,10,35,0.95) 0%, rgba(30,15,50,0.95) 100%);
  border-color: rgba(255, 107, 157, 0.2);
}

.persona-student::before {
  background: radial-gradient(ellipse at top, rgba(255,107,157,0.12), transparent 60%);
  opacity: 1;
}

.persona-student:hover {
  border-color: rgba(255, 107, 157, 0.5);
  box-shadow: 0 24px 80px rgba(255,107,157,0.15), var(--shadow-xl);
}

.persona-icon {
  font-size: 40px;
  line-height: 1;
  display: block;
}

.persona-tag {
  display: inline-block;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.15em;
  padding: 4px 12px;
  border-radius: var(--radius-full);
}

.persona-tag-blue {
  background: rgba(58, 125, 255, 0.15);
  color: var(--accent-blue);
  border: 1px solid rgba(58, 125, 255, 0.3);
}

.persona-tag-navy {
  background: rgba(30, 64, 175, 0.15);
  color: #93C5FD;
  border: 1px solid rgba(30, 64, 175, 0.3);
}

.persona-tag-pink {
  background: rgba(255, 107, 157, 0.15);
  color: #FF8DC0;
  border: 1px solid rgba(255, 107, 157, 0.3);
}

.persona-title {
  font-size: clamp(20px, 2.5vw, 26px);
  font-weight: 700;
  line-height: 1.3;
  color: var(--text-primary);
  margin: 0;
}

.persona-desc {
  font-size: 14px;
  line-height: 1.8;
  color: var(--text-secondary);
  margin: 0;
  flex: 1;
}

.persona-cta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 14px;
  font-weight: 600;
  color: var(--accent-blue-light);
  margin-top: auto;
  padding-top: 16px;
  border-top: 1px solid var(--border-subtle);
}

/* ---- Morphing Background ---- */
.morphing-bg {
  background: linear-gradient(
    -45deg,
    #0B0F1A,
    #1a1535,
    #0d1829,
    #1a1f35
  );
  background-size: 400% 400%;
  animation: morphBg 15s ease infinite;
}

@keyframes morphBg {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

/* ---- Reveal Animations Enhanced ---- */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

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

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }
.reveal-left {
  opacity: 0;
  transform: translateX(-30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal-left.visible { opacity: 1; transform: translateX(0); }
.reveal-right {
  opacity: 0;
  transform: translateX(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal-right.visible { opacity: 1; transform: translateX(0); }
.reveal-scale {
  opacity: 0;
  transform: scale(0.95);
  transition: opacity 0.6s ease, transform 0.6s cubic-bezier(0.34, 1.56, 0.64, 1);
}
.reveal-scale.visible { opacity: 1; transform: scale(1); }

/* ---- Hover Lift Styles ---- */
.hover-lift {
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}
.hover-lift:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}

/* ---- Article Cards Enhanced ---- */
.article-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition-base);
  display: flex;
  flex-direction: column;
}

.article-card:hover {
  transform: translateY(-6px);
  border-color: var(--border-accent);
  box-shadow: var(--shadow-lg), var(--shadow-glow-soft);
}

.article-card-img {
  height: 160px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  position: relative;
}

.article-card-body {
  padding: var(--space-5);
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.article-card-meta {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  color: var(--text-muted);
  flex-wrap: wrap;
}

.article-card-title {
  font-size: 17px;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.4;
}

.article-card-excerpt {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.7;
  flex: 1;
}

.article-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--space-3);
  border-top: 1px solid var(--border-subtle);
  margin-top: auto;
}

/* ---- Timeline ---- */
.timeline {
  position: relative;
  padding-left: 32px;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 8px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(180deg, var(--accent-blue), transparent);
}

.timeline-item {
  position: relative;
  padding-bottom: 32px;
}

.timeline-item::before {
  content: '';
  position: absolute;
  left: -28px;
  top: 6px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--accent-blue);
  box-shadow: 0 0 8px rgba(58, 125, 255, 0.5);
}

/* ---- Stats Counter Cards ---- */
.stat-card {
  text-align: center;
  padding: var(--space-8);
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  transition: all var(--transition-base);
}

.stat-card:hover {
  border-color: var(--border-accent);
  box-shadow: var(--shadow-glow-soft);
}

.stat-number {
  font-size: clamp(36px, 4vw, 56px);
  font-weight: 800;
  letter-spacing: -0.04em;
  background: linear-gradient(135deg, var(--text-primary), var(--accent-blue-light));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
}

.stat-label {
  font-size: 13px;
  color: var(--text-muted);
  margin-top: 8px;
  letter-spacing: 0.05em;
}

/* ---- Gantt Chart ---- */
.gantt-container {
  overflow-x: auto;
  border-radius: var(--radius-lg);
}

.gantt-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 600px;
}

.gantt-table th {
  background: var(--bg-surface);
  padding: 10px 12px;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-muted);
  letter-spacing: 0.05em;
  border-bottom: 1px solid var(--border-subtle);
  text-align: left;
}

.gantt-table td {
  padding: 12px;
  border-bottom: 1px solid var(--border-subtle);
  font-size: 14px;
  color: var(--text-secondary);
  vertical-align: middle;
}

.gantt-bar {
  height: 20px;
  border-radius: 4px;
  position: relative;
  overflow: hidden;
  min-width: 20px;
}

.gantt-bar::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, transparent 0%, rgba(255,255,255,0.15) 50%, transparent 100%);
  animation: ganttShine 2s ease-in-out infinite;
}

@keyframes ganttShine {
  0% { transform: translateX(-100%); }
  100% { transform: translateX(100%); }
}

/* ---- Community Post Cards ---- */
.post-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  transition: all var(--transition-base);
}

.post-card:hover {
  border-color: var(--border-default);
  background: var(--bg-hover);
}

.post-card.alumni { border-left: 3px solid var(--accent-aurora); }
.post-card.student { border-left: 3px solid var(--accent-dawn); }
.post-card.parent { border-left: 3px solid #3B82F6; }

/* ---- Exam Schedule Table ---- */
.exam-level-s { color: #EF4444; font-weight: 800; }
.exam-level-a { color: var(--accent-blue); font-weight: 700; }
.exam-level-b { color: #10B981; font-weight: 600; }

/* ---- Toast Notification ---- */
.toast-container {
  position: fixed;
  bottom: 80px;
  right: 24px;
  z-index: 9990;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.toast {
  background: var(--bg-surface);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-md);
  padding: 14px 20px;
  font-size: 14px;
  color: var(--text-primary);
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  gap: 12px;
  animation: toastEnter 0.4s cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
  max-width: 320px;
}

@keyframes toastEnter {
  from { opacity: 0; transform: translateX(100%); }
  to { opacity: 1; transform: translateX(0); }
}

.toast.success { border-left: 3px solid #10B981; }
.toast.error { border-left: 3px solid #EF4444; }
.toast.info { border-left: 3px solid var(--accent-blue); }

/* ---- Enhanced Section Headers ---- */
.section-header {
  text-align: center;
  margin-bottom: var(--space-12);
}

.section-eyebrow {
  display: inline-block;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent-blue);
  margin-bottom: var(--space-4);
  padding: 4px 14px;
  background: rgba(58, 125, 255, 0.08);
  border-radius: var(--radius-full);
  border: 1px solid rgba(58, 125, 255, 0.15);
}

.section-title {
  font-size: clamp(28px, 4vw, 44px);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.2;
  margin-bottom: var(--space-4);
}

.section-desc {
  font-size: 17px;
  color: var(--text-secondary);
  max-width: 560px;
  margin: 0 auto;
  line-height: 1.7;
}

/* ---- Calendar Month View ---- */
.calendar-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 4px;
}

.calendar-day-header {
  text-align: center;
  font-size: 11px;
  font-weight: 700;
  color: var(--text-muted);
  padding: 8px;
  letter-spacing: 0.05em;
}

.calendar-day {
  aspect-ratio: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  font-size: 14px;
  cursor: pointer;
  transition: all var(--transition-fast);
  position: relative;
}

.calendar-day:hover { background: var(--bg-surface); }
.calendar-day.has-event { color: var(--accent-blue); font-weight: 700; }
.calendar-day.has-event::after {
  content: '';
  position: absolute;
  bottom: 4px;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--accent-blue);
}
.calendar-day.today {
  background: var(--accent-blue);
  color: white;
  font-weight: 700;
}
.calendar-day.other-month { opacity: 0.25; }

/* ---- Pop Theme Enhancements ---- */
.pop-header-bg {
  background: linear-gradient(135deg, #0F172A, #1a0a2e, #0F172A);
}

.pop-gradient-text {
  background: linear-gradient(135deg, #FF6B9D, #4F8EFF, #FFD166, #06D6A0);
  background-size: 300% 300%;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: popGradient 4s ease infinite;
}

@keyframes popGradient {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

.pop-confetti {
  position: absolute;
  pointer-events: none;
}

.pop-confetti span {
  position: absolute;
  font-size: 20px;
  animation: confettiFall var(--dur, 3s) ease-in-out infinite;
  animation-delay: var(--delay, 0s);
}

@keyframes confettiFall {
  0% { transform: translateY(-20px) rotate(0deg); opacity: 1; }
  100% { transform: translateY(80px) rotate(360deg); opacity: 0; }
}

/* ---- Contribution Score Bar ---- */
.score-bar-container {
  height: 8px;
  background: rgba(255,255,255,0.1);
  border-radius: 4px;
  overflow: hidden;
}

.score-bar-fill {
  height: 100%;
  border-radius: 4px;
  background: linear-gradient(90deg, #FF6B9D, #4F8EFF);
  transition: width 1s cubic-bezier(0.34, 1.56, 0.64, 1);
  box-shadow: 0 0 8px rgba(79, 142, 255, 0.5);
}

/* ---- Exam OS Gantt ---- */
.exam-gantt-row {
  display: grid;
  grid-template-columns: 120px 80px 1fr;
  align-items: center;
  gap: 16px;
  padding: 10px 0;
  border-bottom: 1px solid var(--border-subtle);
}

/* ---- Filter Tabs (scrollable) ---- */
.filter-tabs-scroll {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
  -ms-overflow-style: none;
}
.filter-tabs-scroll::-webkit-scrollbar { display: none; }

.filter-tabs {
  display: flex;
  gap: 8px;
  white-space: nowrap;
  padding-bottom: 4px;
}

.filter-tab {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 20px;
  border-radius: var(--radius-full);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
  border: 1px solid var(--border-default);
  color: var(--text-secondary);
  background: transparent;
  white-space: nowrap;
  font-family: var(--font-sans);
}

.filter-tab:hover {
  border-color: var(--accent-blue);
  color: var(--accent-blue);
}

.filter-tab.active {
  background: var(--accent-blue);
  border-color: var(--accent-blue);
  color: white;
  box-shadow: 0 4px 12px rgba(58, 125, 255, 0.3);
}

/* ---- Enhanced Pagination ---- */
.pagination-wrapper {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-top: var(--space-10);
  flex-wrap: wrap;
}

.page-btn {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-base);
  text-decoration: none;
  border: 1px solid var(--border-default);
  color: var(--text-secondary);
  background: transparent;
}

.page-btn:hover {
  border-color: var(--accent-blue);
  color: var(--accent-blue);
  background: rgba(58, 125, 255, 0.08);
}

.page-btn.active {
  background: var(--accent-blue);
  border-color: var(--accent-blue);
  color: white;
  box-shadow: 0 4px 12px rgba(58, 125, 255, 0.3);
}

.page-btn:disabled, .page-btn.disabled {
  opacity: 0.3;
  cursor: not-allowed;
  pointer-events: none;
}

/* ---- Enhanced Quote Block ---- */
.quote-block {
  border-left: 3px solid var(--accent-blue);
  padding: 20px 24px;
  background: rgba(58, 125, 255, 0.05);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  font-size: 17px;
  color: var(--text-secondary);
  line-height: 1.8;
  font-style: italic;
  margin: 24px 0;
  position: relative;
}

.quote-block::before {
  content: '"';
  position: absolute;
  top: -10px;
  left: 20px;
  font-size: 64px;
  color: var(--accent-blue);
  opacity: 0.2;
  font-family: Georgia, serif;
  line-height: 1;
}

/* ---- Reading Progress ---- */
.reading-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--accent-blue), var(--accent-moon));
  z-index: 9998;
  transition: width 0.1s linear;
}

/* ════════════════════════════════════════════════
   SEMANTIC GRID CLASSES（インラインstyle置き換え）
   ════════════════════════════════════════════════ */

/* DEFINITION: 2col (テキスト + カード) */
.definition-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

/* FEATURE: 2x2 小カードグリッド */
.feature-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

/* PERSONA GATE: 3 col */
.persona-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

/* BANNER: 入試×インターン 2col */
.banner-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

/* STAT GRID: ダッシュボード統計カード 4列 */
.stat-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

/* EVENT ROW: 日付 | タイトル | 統計 */
.event-row {
  display: grid;
  grid-template-columns: 72px 1fr auto;
  gap: 20px;
  align-items: center;
  padding: 20px 24px;
}
.event-row-stat { text-align: right; }

/* ════════════════════════════════════════════════
   MOBILE RESPONSIVE — 全ページ対応
   スマホ崩れ完全修正
   ════════════════════════════════════════════════ */

/* ── タブレット (≤1024px) ── */
@media (max-width: 1024px) {
  /* 2列コンテンツをタブレットで調整 */
  .container { padding: 0 var(--space-6); }

  /* ダッシュボードサイドバー幅を縮小 */
  .dashboard-layout { grid-template-columns: 220px 1fr; }
  .dashboard-sidebar { padding: var(--space-4); padding-top: 72px; }
  .dashboard-main { padding: var(--space-6); padding-top: 80px; }
}

/* ── スマホ (≤768px) ── */
@media (max-width: 768px) {

  /* ── セマンティックグリッド → 1col ── */
  .definition-grid,
  .feature-grid,
  .persona-grid,
  .banner-grid {
    grid-template-columns: 1fr !important;
    gap: 20px !important;
  }
  .definition-grid { gap: 40px !important; }

  /* ── 統計グリッド → 2col ── */
  .stat-grid {
    grid-template-columns: repeat(2, 1fr) !important;
    gap: 12px !important;
  }

  /* ── ダッシュボード内 stats (生徒) ── */
  div[style*="grid-template-columns:repeat(4,1fr)"] {
    grid-template-columns: repeat(2, 1fr) !important;
    gap: 12px !important;
  }

  /* ── 基本レイアウト ── */
  .container,
  .container-wide,
  .container-narrow {
    padding: 0 16px;
    width: 100%;
    box-sizing: border-box;
  }

  .section     { padding: 56px 0; }
  .section-sm  { padding: 40px 0; }
  .section-lg  { padding: 72px 0; }

  /* ── グリッド全解除 ── */
  .grid-2,
  .grid-3,
  .grid-4 { grid-template-columns: 1fr; gap: 16px; }

  /* ── インラインstyleのgridを上書き ── */
  /* 2カラムのグリッドをすべて1カラムに */
  [style*="grid-template-columns:1fr 1fr"],
  [style*="grid-template-columns: 1fr 1fr"] {
    grid-template-columns: 1fr !important;
  }
  [style*="grid-template-columns:repeat(2"],
  [style*="grid-template-columns: repeat(2"] {
    grid-template-columns: 1fr !important;
  }
  [style*="grid-template-columns:repeat(3"],
  [style*="grid-template-columns: repeat(3"] {
    grid-template-columns: 1fr !important;
  }
  [style*="grid-template-columns:repeat(4"],
  [style*="grid-template-columns: repeat(4"] {
    grid-template-columns: 1fr !important;
    gap: 12px !important;
  }

  /* ── WHAT IS TSUKIGRAPH section の2col grid ── */
  .section [style*="display:grid"] {
    grid-template-columns: 1fr !important;
    gap: 40px !important;
  }

  /* ── ナビゲーション ── */
  .nav-links  { display: none; }
  .nav-menu-btn { display: flex; }
  .nav-cta .btn-sm { display: none; }
  .nav-inner { padding: 0 16px; }

  /* ── ヒーロー ── */
  .hero-content {
    padding-top: 90px;
    padding-bottom: 60px;
    padding-left: 16px;
    padding-right: 16px;
    text-align: center;
  }
  .hero-actions {
    flex-direction: column;
    align-items: center;
    gap: 12px;
  }
  .hero-actions .btn {
    width: 100%;
    max-width: 300px;
    justify-content: center;
  }

  /* ── ペルソナカード ── */
  .persona-gate [style*="grid-template-columns:repeat(3"] {
    display: flex !important;
    flex-direction: column !important;
    gap: 16px !important;
  }
  .persona-card {
    min-height: auto;
    padding: 24px 20px;
  }
  .persona-title {
    font-size: 22px !important;
  }

  /* ── 入試・インターン バナー2列 ── */
  .section-sm [style*="grid-template-columns:1fr 1fr"] {
    display: flex !important;
    flex-direction: column !important;
    gap: 16px !important;
  }

  /* ── 教材グリッドのインラインgrid (grid-4) ── */
  /* .grid-4 は上で対応済み */

  /* ── イベントリスト ── */
  .event-row {
    grid-template-columns: 56px 1fr !important;
    gap: 12px !important;
    padding: 16px !important;
  }
  .event-row-stat {
    grid-column: 2;
    text-align: left !important;
  }

  /* ── アーティクルカード ── */
  .article-card { flex-direction: column; }

  /* ── フッター ── */
  .footer-grid {
    grid-template-columns: 1fr !important;
    gap: 32px;
  }
  .footer-brand { grid-column: auto !important; }
  .footer-bottom {
    flex-direction: column;
    gap: 12px;
    text-align: center;
  }
  .footer-bottom > div {
    flex-direction: column;
    gap: 8px;
  }

  /* ── ダッシュボードレイアウト ── */
  .dashboard-layout {
    grid-template-columns: 1fr !important;
    display: block !important;
  }
  .dashboard-sidebar {
    position: relative !important;
    top: auto !important;
    height: auto !important;
    padding: 80px 16px 24px !important;
    border-right: none !important;
    border-bottom: 1px solid var(--border-subtle);
  }
  .dashboard-main {
    padding: 24px 16px !important;
    padding-top: 24px !important;
  }

  /* ── ダッシュボード内グリッド ── */
  .grid-4[style],
  div[style*="grid-template-columns:repeat(4,1fr)"],
  div[style*="display:grid;grid-template-columns:repeat(4"] {
    grid-template-columns: repeat(2, 1fr) !important;
    gap: 12px !important;
  }

  /* ── フィルタータブ ── */
  .filter-tabs { gap: 6px; flex-wrap: wrap; }
  .filter-tab  { padding: 6px 12px; font-size: 12px; }

  /* ── 支払いテーブル ── */
  table { font-size: 13px; }
  table th, table td { padding: 8px 10px; }

  /* ── ページネーション ── */
  .pagination-wrapper { gap: 4px; flex-wrap: wrap; justify-content: center; }
  .page-btn { min-width: 36px; height: 36px; font-size: 13px; }

  /* ── back-to-top ── */
  .back-to-top {
    width: 40px;
    height: 40px;
    font-size: 16px;
    bottom: 16px;
    right: 16px;
  }

  /* ── 統計カード（stat-card） ── */
  .stat-card { padding: 16px; }

  /* ── テキスト折り返し強制 ── */
  h1, h2, h3, h4, h5, h6, p, span, div {
    word-break: break-word;
    overflow-wrap: break-word;
  }
  /* ただし英字のCormorantフォントは適切に折り返す */
  .lp-title, .lp-footer-brand {
    word-break: keep-all;
    overflow-wrap: normal;
  }
}

/* ── 小型スマホ (≤480px) ── */
@media (max-width: 480px) {
  .container,
  .container-wide,
  .container-narrow { padding: 0 12px; }

  h1 { font-size: 32px; }
  h2 { font-size: 26px; }
  h3 { font-size: 20px; }

  /* stat カード 2列 → 必要に応じて1列 */
  div[style*="display:grid;grid-template-columns:repeat(4,1fr)"] {
    grid-template-columns: 1fr 1fr !important;
    gap: 10px !important;
  }

  /* ボタン幅 */
  .btn-lg { padding: 12px 20px; font-size: 14px; }

  /* persona tag 折り返し防止 */
  .persona-tag { font-size: 10px; letter-spacing: 0.08em; }
}

/* ---- Print ---- */
@media print {
  .nav, .back-to-top, .moon-loader-overlay { display: none !important; }
}