/* ===== BLOCK & PIXEL STYLE CSS =====
 * Second - Programming Education Website
 * Design Concept: Block-based layout with pixel/dot aesthetics
 */

/* ===== CSS Variables ===== */
:root {
  /* Pixel/Block Color Palette */
  --pixel-primary: #6C5CE7;
  --pixel-primary-dark: #5a4bd1;
  --pixel-accent-1: #4ECDC4;
  --pixel-accent-2: #FF6B6B;
  --pixel-accent-3: #FFE66D;
  --pixel-dark: #1a1a2e;
  --pixel-darker: #0f0f1a;
  --pixel-light: #f0f0f5;
  --pixel-white: #ffffff;
  --pixel-gray: #636e72;
  --pixel-border: #2d3436;
  
  /* Typography */
  --font-pixel: 'Press Start 2P', cursive;
  --font-dot: 'DotGothic16', sans-serif;
  --font-display: 'Rampart One', cursive;
  --font-main: 'Noto Sans JP', sans-serif;
  --font-en: 'VT323', 'Inter', monospace;
  
  /* Block/Pixel Spacing */
  --block-unit: 8px;
  --border-width: 4px;
  --shadow-offset: 6px;
  
  /* Layout */
  --header-height: 72px;
  --container-max: 1200px;
  
  /* Transitions */
  --transition: 0.2s ease;
}

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

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

body {
  font-family: var(--font-main);
  color: var(--pixel-dark);
  background: var(--pixel-white);
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  background-image: 
    linear-gradient(rgba(108,92,231,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(108,92,231,0.03) 1px, transparent 1px);
  background-size: 32px 32px;
}

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
button { border: none; background: none; cursor: pointer; font: inherit; color: inherit; }
ul, ol { list-style: none; }
input, textarea { font: inherit; }

.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 calc(var(--block-unit) * 3);
}

.hide-sp { display: none; }

/* ===== Typography ===== */
h1, h2, h3 {
  font-family: var(--font-main);
  font-weight: 800;
  line-height: 1.4;
}

.pixel-text {
  font-family: var(--font-pixel);
  font-size: 0.65rem;
  line-height: 1.6;
  letter-spacing: 0.05em;
}

.dot-text {
  font-family: var(--font-dot);
  letter-spacing: 0.02em;
}

.section-label {
  font-family: var(--font-en);
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--pixel-primary);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  display: inline-flex;
  align-items: center;
  gap: var(--block-unit);
}

.section-label::before {
  content: '';
  width: 8px;
  height: 8px;
  background: var(--pixel-primary);
  display: inline-block;
}

/* ===== Scroll Animations ===== */
.animate-wrapper {
  opacity: 0;
  transition: opacity 0.5s var(--transition), transform 0.5s var(--transition);
}

.animate-up { transform: translateY(30px); }
.animate-down { transform: translateY(-30px); }
.animate-left { transform: translateX(-30px); }
.animate-right { transform: translateX(30px); }

.animate-wrapper.is-visible {
  opacity: 1;
  transform: translate(0, 0);
}

/* ===== Buttons - Block Style ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: calc(var(--block-unit));
  padding: calc(var(--block-unit) * 2) calc(var(--block-unit) * 3);
  font-weight: 700;
  font-size: 0.9rem;
  border: var(--border-width) solid var(--pixel-border);
  background: var(--pixel-white);
  color: var(--pixel-dark);
  box-shadow: var(--shadow-offset) var(--shadow-offset) 0 var(--pixel-border);
  transition: all var(--transition);
  position: relative;
  clip-path: polygon(
    0 0,
    calc(100% - 8px) 0,
    100% 8px,
    100% 100%,
    8px 100%,
    0 calc(100% - 8px)
  );
}

.btn:hover {
  transform: translate(-2px, -2px);
  box-shadow: calc(var(--shadow-offset) + 2px) calc(var(--shadow-offset) + 2px) 0 var(--pixel-border);
}

.btn:active {
  transform: translate(var(--shadow-offset), var(--shadow-offset));
  box-shadow: 0 0 0 var(--pixel-border);
}

.btn--primary {
  background: var(--pixel-primary);
  color: var(--pixel-white);
  border-color: var(--pixel-dark);
  box-shadow: var(--shadow-offset) var(--shadow-offset) 0 var(--pixel-dark);
}

.btn--primary:hover {
  background: var(--pixel-primary-dark);
  box-shadow: calc(var(--shadow-offset) + 2px) calc(var(--shadow-offset) + 2px) 0 var(--pixel-dark);
}

.btn--accent-1 {
  background: var(--pixel-accent-1);
  color: var(--pixel-dark);
  border-color: var(--pixel-dark);
  box-shadow: var(--shadow-offset) var(--shadow-offset) 0 var(--pixel-dark);
}

.btn--accent-2 {
  background: var(--pixel-accent-2);
  color: var(--pixel-white);
  border-color: var(--pixel-dark);
  box-shadow: var(--shadow-offset) var(--shadow-offset) 0 var(--pixel-dark);
}

.btn--dark {
  background: var(--pixel-dark);
  color: var(--pixel-white);
  border-color: var(--pixel-white);
  box-shadow: var(--shadow-offset) var(--shadow-offset) 0 rgba(255,255,255,0.3);
}

.btn--sm { 
  padding: var(--block-unit) calc(var(--block-unit) * 2);
  font-size: 0.8rem;
}

.btn--lg { 
  padding: calc(var(--block-unit) * 3) calc(var(--block-unit) * 4);
  font-size: 1rem;
}

/* ===== Header - Block Style ===== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--header-height);
  background: var(--pixel-white);
  border-bottom: var(--border-width) solid var(--pixel-border);
}

.header--scrolled {
  box-shadow: 0 4px 0 rgba(0,0,0,0.1);
}

.header__inner {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 calc(var(--block-unit) * 3);
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.header__logo {
  display: flex;
  align-items: center;
  gap: calc(var(--block-unit));
  z-index: 1001;
}

.header__logo-img {
  height: 40px;
  width: auto;
  image-rendering: pixelated;
}

.header__logo-text {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--pixel-primary);
}

.header__nav {
  display: flex;
  align-items: center;
  gap: var(--block-unit);
}

.header__nav-link {
  padding: calc(var(--block-unit)) calc(var(--block-unit) * 2);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--pixel-gray);
  transition: all var(--transition);
  position: relative;
  border: 2px solid transparent;
}

.header__nav-link:hover {
  color: var(--pixel-primary);
  background: rgba(108,92,231,0.08);
}

.header__nav-link--active {
  color: var(--pixel-primary);
  background: rgba(108,92,231,0.12);
  border: 2px solid var(--pixel-primary);
}

.header__nav-link--active::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 0;
  border-left: 6px solid transparent;
  border-right: 6px solid transparent;
  border-bottom: 6px solid var(--pixel-border);
}

.header__nav-cta { 
  margin-left: calc(var(--block-unit) * 2);
}

.header__menu-btn {
  display: none;
  z-index: 1001;
  padding: var(--block-unit);
  border: var(--border-width) solid var(--pixel-border);
  background: var(--pixel-white);
}

.header__menu-btn:hover {
  background: var(--pixel-light);
}

.header__overlay {
  display: none;
}

/* ===== Hero Section - Pixel Art Style ===== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: calc(var(--header-height) + 60px) 0 80px;
  overflow: hidden;
  background: linear-gradient(180deg, #fafafa 0%, #f0f0f5 100%);
}

.hero__bg {
  position: absolute;
  inset: 0;
  overflow: hidden;
}

/* Pixel Art Grid Background */
.hero__pixel-grid {
  position: absolute;
  inset: 0;
  background-image: 
    linear-gradient(var(--pixel-border) 1px, transparent 1px),
    linear-gradient(90deg, var(--pixel-border) 1px, transparent 1px);
  background-size: 40px 40px;
  opacity: 0.08;
}

/* Floating Pixel Blocks */
.hero__block {
  position: absolute;
  border: var(--border-width) solid var(--pixel-border);
  box-shadow: 4px 4px 0 rgba(0,0,0,0.1);
}

.hero__block--1 {
  width: 80px;
  height: 80px;
  background: var(--pixel-accent-1);
  top: 15%;
  right: 10%;
  animation: float-pixel 4s ease-in-out infinite;
}

.hero__block--2 {
  width: 60px;
  height: 60px;
  background: var(--pixel-primary);
  top: 60%;
  left: 5%;
  animation: float-pixel 5s ease-in-out infinite reverse;
}

.hero__block--3 {
  width: 40px;
  height: 40px;
  background: var(--pixel-accent-2);
  top: 30%;
  left: 15%;
  animation: float-pixel 3s ease-in-out infinite;
}

.hero__block--4 {
  width: 50px;
  height: 50px;
  background: var(--pixel-accent-3);
  bottom: 20%;
  right: 20%;
  animation: float-pixel 6s ease-in-out infinite;
}

@keyframes float-pixel {
  0%, 100% { transform: translate(0, 0) rotate(0deg); }
  50% { transform: translate(10px, -15px) rotate(5deg); }
}

.hero__inner {
  position: relative;
  text-align: center;
  z-index: 1;
}

.hero__label {
  display: inline-block;
  padding: calc(var(--block-unit)) calc(var(--block-unit) * 3);
  background: var(--pixel-primary);
  color: var(--pixel-white);
  font-size: 0.8rem;
  font-weight: 700;
  border: var(--border-width) solid var(--pixel-dark);
  box-shadow: 4px 4px 0 var(--pixel-dark);
  margin-bottom: calc(var(--block-unit) * 4);
  clip-path: polygon(
    0 0,
    calc(100% - 6px) 0,
    100% 6px,
    100% 100%,
    6px 100%,
    0 calc(100% - 6px)
  );
}

.hero__title {
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 900;
  line-height: 1.3;
  margin-bottom: calc(var(--block-unit) * 3);
  letter-spacing: -0.02em;
}

.hero__title-line { display: block; }

.hero__title-accent {
  display: inline-block;
  background: var(--pixel-primary);
  color: var(--pixel-white);
  padding: 0 calc(var(--block-unit) * 2);
  border: var(--border-width) solid var(--pixel-dark);
  box-shadow: 6px 6px 0 var(--pixel-dark);
  transform: rotate(-1deg);
}

.hero__subtitle {
  font-size: clamp(0.95rem, 2vw, 1.15rem);
  color: var(--pixel-gray);
  max-width: 600px;
  margin: 0 auto calc(var(--block-unit) * 5);
  line-height: 1.9;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: calc(var(--block-unit) * 3);
  justify-content: center;
  margin-bottom: calc(var(--block-unit) * 7);
}

/* Hero Stats - Block Cards */
.hero__stats {
  display: inline-flex;
  align-items: center;
  gap: calc(var(--block-unit) * 3);
  padding: calc(var(--block-unit) * 3) calc(var(--block-unit) * 5);
  background: var(--pixel-white);
  border: var(--border-width) solid var(--pixel-border);
  box-shadow: 8px 8px 0 var(--pixel-border);
}

.hero__stat { 
  text-align: center;
  padding: 0 calc(var(--block-unit) * 2);
}

.hero__stat-num {
  display: block;
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--pixel-primary);
}

.hero__stat-label {
  font-size: 0.75rem;
  color: var(--pixel-gray);
  font-weight: 600;
}

.hero__stat-divider {
  width: 2px;
  height: 40px;
  background: var(--pixel-border);
}

.hero__scroll-hint {
  position: absolute;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--block-unit);
  color: var(--pixel-gray);
  font-size: 0.7rem;
  font-family: var(--font-en);
  letter-spacing: 0.15em;
}

.hero__scroll-block {
  width: 20px;
  height: 30px;
  border: 2px solid var(--pixel-gray);
  position: relative;
}

.hero__scroll-block::after {
  content: '';
  position: absolute;
  width: 4px;
  height: 8px;
  background: var(--pixel-primary);
  left: 50%;
  top: 6px;
  transform: translateX(-50%);
  animation: scroll-dot 1.5s ease-in-out infinite;
}

@keyframes scroll-dot {
  0%, 100% { top: 6px; opacity: 1; }
  50% { top: 16px; opacity: 0.3; }
}

/* ===== Section ===== */
.section {
  padding: 100px 0;
  position: relative;
}

.section--white { background: var(--pixel-white); }
.section--light { background: var(--pixel-light); }
.section--dark { 
  background: var(--pixel-dark);
  color: var(--pixel-white);
}

.section-title {
  margin-bottom: calc(var(--block-unit) * 6);
}

.section-title--center { text-align: center; }
.section-title--left { text-align: left; }

.section-title__heading {
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  font-weight: 800;
  line-height: 1.3;
  margin-top: calc(var(--block-unit));
}

.section-title__sub {
  margin-top: calc(var(--block-unit) * 2);
  color: var(--pixel-gray);
  font-size: 1rem;
}

/* ===== About Intro - Block Cards ===== */
.about-intro__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: calc(var(--block-unit) * 8);
  align-items: center;
}

.about-intro__mvv {
  display: flex;
  flex-direction: column;
  gap: calc(var(--block-unit) * 2);
  margin-bottom: calc(var(--block-unit) * 4);
}

.about-intro__mvv-item {
  padding: calc(var(--block-unit) * 3);
  background: var(--pixel-white);
  border: var(--border-width) solid var(--pixel-border);
  box-shadow: 6px 6px 0 var(--pixel-border);
}

.about-intro__mvv-label {
  font-family: var(--font-en);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--pixel-primary);
  letter-spacing: 0.15em;
  display: block;
  margin-bottom: var(--block-unit);
}

.about-intro__mvv-text {
  font-weight: 700;
  font-size: 1rem;
  line-height: 1.5;
}

.about-intro__desc {
  color: var(--pixel-gray);
  font-size: 1rem;
  line-height: 1.9;
  margin-bottom: calc(var(--block-unit) * 3);
}

.about-intro__values {
  display: flex;
  flex-direction: column;
  gap: calc(var(--block-unit));
}

.about-intro__value {
  display: flex;
  align-items: center;
  gap: calc(var(--block-unit));
  font-size: 0.95rem;
  font-weight: 600;
  padding: calc(var(--block-unit)) calc(var(--block-unit) * 2);
  background: var(--pixel-light);
  border-left: 4px solid var(--pixel-accent-1);
}

/* Floating Block Cards */
.about-intro__visual {
  position: relative;
  height: 400px;
}

.about-intro__card-stack {
  position: relative;
  width: 100%;
  height: 100%;
}

.about-intro__float-card {
  position: absolute;
  display: flex;
  align-items: center;
  gap: calc(var(--block-unit) * 2);
  padding: calc(var(--block-unit) * 3);
  background: var(--pixel-white);
  border: var(--border-width) solid var(--pixel-border);
  box-shadow: 6px 6px 0 var(--pixel-border);
  font-weight: 700;
  font-size: 0.95rem;
  animation: card-float 5s ease-in-out infinite;
}

.about-intro__float-card--1 {
  top: 20px;
  left: 10%;
  border-color: var(--pixel-accent-1);
  animation-delay: 0s;
}

.about-intro__float-card--2 {
  top: 150px;
  right: 5%;
  border-color: var(--pixel-primary);
  animation-delay: 1.5s;
}

.about-intro__float-card--3 {
  bottom: 40px;
  left: 20%;
  border-color: var(--pixel-accent-2);
  animation-delay: 3s;
}

@keyframes card-float {
  0%, 100% { transform: translateY(0) rotate(0deg); }
  50% { transform: translateY(-12px) rotate(1deg); }
}

/* ===== Course Cards - Block Style ===== */
.courses-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: calc(var(--block-unit) * 3);
}

.course-card {
  background: var(--pixel-white);
  border: var(--border-width) solid var(--pixel-border);
  box-shadow: 8px 8px 0 var(--pixel-border);
  padding: calc(var(--block-unit) * 4);
  transition: all var(--transition);
  display: flex;
  flex-direction: column;
  position: relative;
}

.course-card:hover {
  transform: translate(-4px, -4px);
  box-shadow: 12px 12px 0 var(--pixel-border);
}

.course-card__icon {
  width: 60px;
  height: 60px;
  border: var(--border-width) solid var(--pixel-border);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: calc(var(--block-unit) * 2);
  background: var(--pixel-white);
}

.course-card__badge {
  display: inline-block;
  padding: calc(var(--block-unit)) calc(var(--block-unit) * 2);
  color: var(--pixel-white);
  font-size: 0.75rem;
  font-weight: 700;
  font-family: var(--font-en);
  margin-bottom: calc(var(--block-unit) * 2);
  width: fit-content;
  border: 2px solid var(--pixel-dark);
  box-shadow: 3px 3px 0 var(--pixel-dark);
}

.course-card__title {
  font-size: 1.3rem;
  font-weight: 800;
  margin-bottom: 2px;
}

.course-card__subtitle {
  font-size: 0.85rem;
  color: var(--pixel-gray);
  margin-bottom: calc(var(--block-unit));
}

.course-card__tagline {
  font-size: 0.9rem;
  color: var(--pixel-gray);
  font-style: italic;
  margin-bottom: calc(var(--block-unit) * 2);
  padding-left: calc(var(--block-unit) * 2);
  border-left: 3px solid var(--pixel-accent-1);
}

.course-card__desc,
.course-card__desc-short {
  font-size: 0.9rem;
  color: var(--pixel-gray);
  line-height: 1.8;
  margin-bottom: calc(var(--block-unit) * 3);
  flex-grow: 1;
}

.course-card__target {
  display: flex;
  align-items: flex-start;
  gap: calc(var(--block-unit));
  padding: calc(var(--block-unit) * 2);
  background: var(--pixel-light);
  border: 2px solid var(--pixel-border);
  font-size: 0.85rem;
  margin-bottom: calc(var(--block-unit) * 3);
}

.course-card__target span { line-height: 1.6; }

.course-card__link {
  display: inline-flex;
  align-items: center;
  gap: calc(var(--block-unit));
  font-weight: 700;
  font-size: 0.9rem;
  transition: gap var(--transition);
  margin-top: auto;
  padding: calc(var(--block-unit)) 0;
  border-bottom: 2px solid currentColor;
}

.course-card__link:hover {
  gap: calc(var(--block-unit) * 2);
}

/* ===== Instructor Preview - Block Style ===== */
.instructor-preview {
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: calc(var(--block-unit) * 8);
  align-items: center;
}

.instructor-preview__image {
  position: relative;
  border: var(--border-width) solid var(--pixel-border);
  box-shadow: 10px 10px 0 var(--pixel-border);
  overflow: hidden;
  background: var(--pixel-light);
}

.instructor-preview__image img {
  width: 100%;
  aspect-ratio: 3 / 4;
  object-fit: cover;
  display: block;
}

.instructor-preview__image-badge {
  position: absolute;
  bottom: calc(var(--block-unit) * 2);
  left: calc(var(--block-unit) * 2);
  display: flex;
  align-items: center;
  gap: calc(var(--block-unit));
  padding: calc(var(--block-unit)) calc(var(--block-unit) * 2);
  background: var(--pixel-primary);
  color: var(--pixel-white);
  font-size: 0.75rem;
  font-weight: 700;
  border: 2px solid var(--pixel-dark);
  box-shadow: 3px 3px 0 var(--pixel-dark);
}

.instructor-preview__name h3 {
  font-size: 1.8rem;
  font-weight: 800;
  margin-top: calc(var(--block-unit) * 2);
}

.instructor-preview__name span {
  font-size: 0.9rem;
  color: var(--pixel-gray);
}

.instructor-preview__school {
  font-size: 0.95rem;
  color: var(--pixel-gray);
  margin: calc(var(--block-unit)) 0 calc(var(--block-unit) * 3);
  padding: calc(var(--block-unit)) calc(var(--block-unit) * 2);
  background: var(--pixel-light);
  border-left: 4px solid var(--pixel-primary);
  display: inline-block;
}

.instructor-preview__bio {
  font-size: 1rem;
  color: var(--pixel-gray);
  line-height: 1.9;
  margin-bottom: calc(var(--block-unit) * 3);
}

.instructor-preview__achievements {
  display: flex;
  flex-direction: column;
  gap: calc(var(--block-unit));
  margin-bottom: calc(var(--block-unit) * 4);
}

.instructor-preview__achievement {
  display: flex;
  align-items: center;
  gap: calc(var(--block-unit));
  font-size: 0.95rem;
  font-weight: 600;
  padding: calc(var(--block-unit)) calc(var(--block-unit) * 2);
  background: var(--pixel-light);
  border-left: 3px solid var(--pixel-accent-3);
}

/* ===== CTA Section - Block Style ===== */
.cta-section {
  padding: 100px 0;
  background: var(--pixel-dark);
  position: relative;
  overflow: hidden;
  border-top: var(--border-width) solid var(--pixel-border);
  border-bottom: var(--border-width) solid var(--pixel-border);
}

.cta-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: 
    linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size: 32px 32px;
}

.cta-section__inner {
  position: relative;
  text-align: center;
  color: var(--pixel-white);
  z-index: 1;
}

.cta-section__title {
  font-size: clamp(1.5rem, 3vw, 2.2rem);
  font-weight: 800;
  margin-bottom: calc(var(--block-unit) * 3);
}

.cta-section__text {
  font-size: 1.1rem;
  opacity: 0.9;
  margin-bottom: calc(var(--block-unit) * 5);
  line-height: 1.8;
}

.cta-section__buttons {
  display: flex;
  flex-wrap: wrap;
  gap: calc(var(--block-unit) * 3);
  justify-content: center;
}

/* ===== Page Hero - Block Style ===== */
.page-content {
  padding-top: var(--header-height);
}

.page-hero {
  position: relative;
  padding: 100px 0 80px;
  background: var(--pixel-light);
  text-align: center;
  overflow: hidden;
  border-bottom: var(--border-width) solid var(--pixel-border);
}

.page-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: 
    linear-gradient(var(--pixel-border) 1px, transparent 1px),
    linear-gradient(90deg, var(--pixel-border) 1px, transparent 1px);
  background-size: 40px 40px;
  opacity: 0.05;
}

.page-hero__title {
  font-size: clamp(2rem, 4vw, 2.8rem);
  font-weight: 800;
  margin: calc(var(--block-unit) * 2) 0 calc(var(--block-unit));
}

.page-hero__subtitle {
  color: var(--pixel-gray);
  font-size: 1.1rem;
}

/* ===== Course Method Section ===== */
.course-method__inner {
  text-align: center;
}

.course-method__title {
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: calc(var(--block-unit) * 3);
}

.course-method__text {
  color: var(--pixel-gray);
  max-width: 700px;
  margin: 0 auto calc(var(--block-unit) * 5);
  line-height: 1.9;
}

.course-method__features {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: calc(var(--block-unit) * 3);
}

.course-method__feature {
  padding: calc(var(--block-unit) * 4);
  background: var(--pixel-white);
  border: var(--border-width) solid var(--pixel-border);
  box-shadow: 6px 6px 0 var(--pixel-border);
  text-align: center;
}

.course-method__feature-icon {
  width: 60px;
  height: 60px;
  border: var(--border-width) solid var(--pixel-border);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto calc(var(--block-unit) * 2);
  background: var(--pixel-white);
}

.course-method__feature h4 {
  font-size: 1rem;
  margin-bottom: calc(var(--block-unit));
}

.course-method__feature p {
  font-size: 0.9rem;
  color: var(--pixel-gray);
}

/* ===== Course Detail - Block Layout ===== */
.course-detail {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: calc(var(--block-unit) * 8);
  align-items: center;
}

.course-detail--reverse {
  direction: rtl;
}

.course-detail--reverse > * {
  direction: ltr;
}

.course-detail__visual {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: calc(var(--block-unit) * 3);
}

.course-detail__icon-large {
  width: 200px;
  height: 200px;
  border: var(--border-width) solid var(--pixel-border);
  box-shadow: 10px 10px 0 var(--pixel-border);
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--pixel-white);
}

.course-detail__price-tag {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: calc(var(--block-unit) * 3) calc(var(--block-unit) * 5);
  border: var(--border-width) solid var(--pixel-dark);
  box-shadow: 6px 6px 0 var(--pixel-dark);
  color: var(--pixel-white);
  clip-path: polygon(
    0 0,
    calc(100% - 12px) 0,
    100% 12px,
    100% 100%,
    12px 100%,
    0 calc(100% - 12px)
  );
}

.course-detail__price-label {
  font-size: 0.8rem;
  opacity: 0.9;
  font-weight: 600;
}

.course-detail__price-amount {
  font-family: var(--font-display);
  font-size: 2.2rem;
  font-weight: 800;
}

.course-detail__price-note {
  font-size: 0.75rem;
  opacity: 0.8;
}

.course-detail__number {
  font-family: var(--font-en);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  margin-bottom: var(--block-unit);
}

.course-detail__title {
  font-size: 2rem;
  font-weight: 800;
  margin: 0 0 4px;
}

.course-detail__name-jp {
  font-size: 1rem;
  color: var(--pixel-gray);
  margin-bottom: calc(var(--block-unit) * 3);
}

.course-detail__tagline {
  padding: calc(var(--block-unit) * 2);
  border: 2px solid;
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: calc(var(--block-unit) * 3);
  display: inline-block;
}

.course-detail__desc {
  color: var(--pixel-gray);
  line-height: 1.9;
  margin-bottom: calc(var(--block-unit) * 4);
}

.course-detail__target h4 {
  font-size: 0.95rem;
  margin-bottom: calc(var(--block-unit));
}

.course-detail__target-box {
  display: flex;
  align-items: flex-start;
  gap: calc(var(--block-unit) * 2);
  padding: calc(var(--block-unit) * 2) calc(var(--block-unit) * 3);
  border: var(--border-width) solid;
  font-size: 0.95rem;
  margin-bottom: calc(var(--block-unit) * 4);
  background: rgba(255,255,255,0.5);
}

/* ===== Pricing Cards - Block Style ===== */
.pricing-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: calc(var(--block-unit) * 3);
  align-items: start;
}

.pricing-card {
  background: var(--pixel-white);
  border: var(--border-width) solid var(--pixel-border);
  box-shadow: 8px 8px 0 var(--pixel-border);
  padding: calc(var(--block-unit) * 4);
  text-align: center;
  transition: all var(--transition);
  position: relative;
}

.pricing-card:hover {
  transform: translate(-4px, -4px);
  box-shadow: 12px 12px 0 var(--pixel-border);
}

.pricing-card--popular {
  border-color: var(--pixel-primary);
  box-shadow: 8px 8px 0 var(--pixel-primary);
  transform: translateY(-8px);
}

.pricing-card--popular:hover {
  box-shadow: 12px 12px 0 var(--pixel-primary);
}

.pricing-card__badge {
  position: absolute;
  top: -16px;
  left: 50%;
  transform: translateX(-50%);
  padding: calc(var(--block-unit)) calc(var(--block-unit) * 3);
  background: var(--pixel-accent-2);
  color: var(--pixel-white);
  font-size: 0.75rem;
  font-weight: 700;
  font-family: var(--font-en);
  border: 2px solid var(--pixel-dark);
  box-shadow: 3px 3px 0 var(--pixel-dark);
}

.pricing-card__header {
  margin-bottom: calc(var(--block-unit) * 3);
  padding-bottom: calc(var(--block-unit) * 3);
  border-bottom: 2px solid var(--pixel-border);
}

.pricing-card__icon {
  width: 60px;
  height: 60px;
  border: var(--border-width) solid var(--pixel-border);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto calc(var(--block-unit) * 2);
  background: var(--pixel-white);
}

.pricing-card__name {
  font-size: 1.25rem;
  font-weight: 800;
}

.pricing-card__name-jp {
  font-size: 0.85rem;
  color: var(--pixel-gray);
}

.pricing-card__price {
  margin-bottom: calc(var(--block-unit) * 3);
}

.pricing-card__currency {
  font-family: var(--font-en);
  font-size: 1.4rem;
  font-weight: 700;
  vertical-align: top;
}

.pricing-card__amount {
  font-family: var(--font-display);
  font-size: 3rem;
  font-weight: 800;
  line-height: 1;
}

.pricing-card__period {
  font-size: 0.9rem;
  color: var(--pixel-gray);
}

.pricing-card__features {
  text-align: left;
  margin-bottom: calc(var(--block-unit) * 3);
}

.pricing-card__features li {
  display: flex;
  align-items: center;
  gap: calc(var(--block-unit));
  padding: calc(var(--block-unit)) 0;
  font-size: 0.9rem;
  border-bottom: 1px dashed var(--pixel-border);
}

.pricing-card__target {
  font-size: 0.85rem;
  color: var(--pixel-gray);
  padding: calc(var(--block-unit) * 2);
  background: var(--pixel-light);
  border: 2px solid var(--pixel-border);
  margin-bottom: calc(var(--block-unit) * 3);
  line-height: 1.6;
}

.pricing-card__btn {
  width: 100%;
}

/* ===== Other Pricing Table - Block Style ===== */
.other-pricing {
  background: var(--pixel-white);
  border: var(--border-width) solid var(--pixel-border);
  box-shadow: 8px 8px 0 var(--pixel-border);
  overflow: hidden;
}

.other-pricing__table {
  width: 100%;
  border-collapse: collapse;
}

.other-pricing__table th,
.other-pricing__table td {
  padding: calc(var(--block-unit) * 2) calc(var(--block-unit) * 3);
  text-align: left;
  font-size: 1rem;
  border-bottom: 2px solid var(--pixel-border);
}

.other-pricing__table th {
  background: var(--pixel-light);
  font-weight: 700;
  font-size: 0.9rem;
  color: var(--pixel-gray);
}

.other-pricing__table tr:last-child td {
  border-bottom: none;
}

.other-pricing__price {
  font-weight: 800;
  color: var(--pixel-primary);
  font-family: var(--font-en);
  font-size: 1.1rem;
}

.other-pricing__note {
  color: var(--pixel-gray);
  font-size: 0.9rem;
}

/* ===== Discount Cards - Block Style ===== */
.discounts-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: calc(var(--block-unit) * 3);
}

.discount-card {
  background: var(--pixel-white);
  border: var(--border-width) solid var(--pixel-border);
  box-shadow: 6px 6px 0 var(--pixel-border);
  padding: calc(var(--block-unit) * 4);
  text-align: center;
  transition: all var(--transition);
}

.discount-card:hover {
  transform: translate(-3px, -3px);
  box-shadow: 9px 9px 0 var(--pixel-border);
}

.discount-card__icon {
  width: 64px;
  height: 64px;
  border: var(--border-width) solid var(--pixel-border);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto calc(var(--block-unit) * 2);
  background: var(--pixel-light);
}

.discount-card__title {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: calc(var(--block-unit));
}

.discount-card__desc {
  font-size: 0.95rem;
  color: var(--pixel-gray);
  line-height: 1.7;
}

/* ===== FAQ - Block Style ===== */
.faq-list {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: calc(var(--block-unit) * 2);
}

.faq-item {
  background: var(--pixel-white);
  border: var(--border-width) solid var(--pixel-border);
  box-shadow: 4px 4px 0 var(--pixel-border);
  overflow: hidden;
  transition: all var(--transition);
}

.faq-item:hover {
  box-shadow: 6px 6px 0 var(--pixel-border);
}

.faq-item--open {
  box-shadow: 6px 6px 0 var(--pixel-border);
}

.faq-item__question {
  width: 100%;
  display: flex;
  align-items: center;
  gap: calc(var(--block-unit) * 2);
  padding: calc(var(--block-unit) * 3);
  text-align: left;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: background var(--transition);
}

.faq-item__question:hover {
  background: var(--pixel-light);
}

.faq-item__q-mark {
  flex-shrink: 0;
  width: 32px;
  height: 32px;
  background: var(--pixel-primary);
  color: var(--pixel-white);
  font-family: var(--font-en);
  font-size: 0.9rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 2px solid var(--pixel-dark);
  box-shadow: 2px 2px 0 var(--pixel-dark);
}

.faq-item__q-text {
  flex-grow: 1;
  min-width: 0;
}

.faq-item__arrow {
  flex-shrink: 0;
  transition: transform var(--transition);
  color: var(--pixel-gray);
}

.faq-item__arrow--open {
  transform: rotate(180deg);
}

.faq-item__answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.faq-item__answer--open {
  /* max-height is set inline for each item based on its content */
}

.faq-item__a-inner {
  display: flex;
  gap: calc(var(--block-unit) * 2);
  padding: 0 calc(var(--block-unit) * 3) calc(var(--block-unit) * 3);
}

.faq-item__a-mark {
  flex-shrink: 0;
  width: 32px;
  height: 32px;
  background: var(--pixel-accent-1);
  color: var(--pixel-white);
  font-family: var(--font-en);
  font-size: 0.9rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 2px solid var(--pixel-dark);
  box-shadow: 2px 2px 0 var(--pixel-dark);
}

.faq-item__a-inner p {
  color: var(--pixel-gray);
  font-size: 0.95rem;
  line-height: 1.8;
  min-width: 0;
  overflow-wrap: anywhere;
  word-break: break-word;
}

/* ===== About Profile - Block Style ===== */
.about-profile {
  display: grid;
  grid-template-columns: 340px 1fr;
  gap: calc(var(--block-unit) * 8);
  align-items: center;
}

.about-profile__image-wrap {
  border: var(--border-width) solid var(--pixel-border);
  box-shadow: 10px 10px 0 var(--pixel-border);
  overflow: hidden;
  background: var(--pixel-light);
}

.about-profile__image {
  width: 100%;
  aspect-ratio: 3 / 4;
  object-fit: cover;
  display: block;
}

.about-profile__name {
  font-size: 2.2rem;
  font-weight: 800;
}

.about-profile__reading {
  font-size: 1rem;
  color: var(--pixel-gray);
}

.about-profile__school {
  display: flex;
  align-items: center;
  gap: calc(var(--block-unit));
  font-size: 1rem;
  color: var(--pixel-gray);
  margin: calc(var(--block-unit) * 2) 0 calc(var(--block-unit) * 4);
  padding: calc(var(--block-unit)) calc(var(--block-unit) * 3);
  background: var(--pixel-light);
  border: 2px solid var(--pixel-border);
  display: inline-flex;
  box-shadow: 3px 3px 0 var(--pixel-border);
}

.about-profile__bio {
  font-size: 1rem;
  color: var(--pixel-gray);
  line-height: 1.9;
}

/* ===== Achievements - Block Cards ===== */
.achievements-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: calc(var(--block-unit) * 3);
}

.achievement-card {
  background: var(--pixel-white);
  border: var(--border-width) solid var(--pixel-border);
  box-shadow: 6px 6px 0 var(--pixel-border);
  padding: calc(var(--block-unit) * 4);
  text-align: center;
  transition: all var(--transition);
}

.achievement-card:hover {
  transform: translate(-3px, -3px);
  box-shadow: 9px 9px 0 var(--pixel-border);
}

.achievement-card__icon {
  width: 64px;
  height: 64px;
  border: var(--border-width) solid var(--pixel-border);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto calc(var(--block-unit) * 2);
  background: var(--pixel-light);
}

.achievement-card__title {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: calc(var(--block-unit));
}

.achievement-card__detail {
  font-size: 0.9rem;
  color: var(--pixel-gray);
  line-height: 1.7;
}

/* ===== Method Section - Block Style ===== */
.method-section {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: calc(var(--block-unit) * 6);
  align-items: start;
}

.method-section__content p {
  color: var(--pixel-gray);
  line-height: 1.9;
  margin-bottom: calc(var(--block-unit) * 2);
}

.method-section__steps {
  display: flex;
  flex-direction: column;
  gap: calc(var(--block-unit) * 3);
}

.method-step {
  display: flex;
  gap: calc(var(--block-unit) * 3);
  align-items: flex-start;
  padding: calc(var(--block-unit) * 3);
  background: var(--pixel-white);
  border: var(--border-width) solid var(--pixel-border);
  box-shadow: 4px 4px 0 var(--pixel-border);
  transition: all var(--transition);
}

.method-step:hover {
  transform: translateX(4px);
  box-shadow: 6px 6px 0 var(--pixel-border);
}

.method-step__num {
  flex-shrink: 0;
  font-family: var(--font-display);
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--pixel-primary);
  line-height: 1;
  min-width: 50px;
  text-align: center;
  padding: calc(var(--block-unit));
  background: var(--pixel-light);
  border: 2px solid var(--pixel-border);
}

.method-step h4 {
  font-size: 1.05rem;
  margin-bottom: calc(var(--block-unit) / 2);
}

.method-step p {
  font-size: 0.9rem;
  color: var(--pixel-gray);
  line-height: 1.7;
}

/* ===== Message Section ===== */
.message-section {
  max-width: 700px;
  margin: 0 auto;
  text-align: center;
  position: relative;
  padding: calc(var(--block-unit) * 6);
  background: var(--pixel-white);
  border: var(--border-width) solid var(--pixel-border);
  box-shadow: 10px 10px 0 var(--pixel-border);
}

.message-section__title {
  font-size: 1.6rem;
  font-weight: 700;
  margin-bottom: calc(var(--block-unit) * 4);
}

.message-section__text {
  text-align: left;
}

.message-section__text p {
  color: var(--pixel-gray);
  line-height: 1.9;
  margin-bottom: calc(var(--block-unit) * 2);
}

.message-section__author {
  display: flex;
  align-items: center;
  gap: calc(var(--block-unit) * 3);
  justify-content: center;
  margin-top: calc(var(--block-unit) * 5);
  padding-top: calc(var(--block-unit) * 4);
  border-top: 2px dashed var(--pixel-border);
}

.message-section__author-img {
  width: 56px;
  height: 56px;
  border: var(--border-width) solid var(--pixel-border);
  object-fit: cover;
}

.message-section__author-name {
  font-weight: 700;
  font-size: 1rem;
}

.message-section__author-role {
  font-size: 0.85rem;
  color: var(--pixel-gray);
}

/* ===== Contact - Block Style ===== */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: calc(var(--block-unit) * 6);
  align-items: start;
}

.contact-main__title {
  font-size: 1.6rem;
  font-weight: 700;
  margin-bottom: calc(var(--block-unit) * 3);
}

.contact-main__text {
  color: var(--pixel-gray);
  line-height: 1.8;
  margin-bottom: calc(var(--block-unit) * 4);
}

.contact-main__email-btn {
  display: flex;
  align-items: center;
  gap: calc(var(--block-unit) * 3);
  padding: calc(var(--block-unit) * 3);
  background: var(--pixel-white);
  border: var(--border-width) solid var(--pixel-border);
  box-shadow: 6px 6px 0 var(--pixel-border);
  transition: all var(--transition);
}

.contact-main__email-btn:hover {
  transform: translate(-3px, -3px);
  box-shadow: 9px 9px 0 var(--pixel-border);
}

.contact-main__email-icon {
  width: 56px;
  height: 56px;
  background: var(--pixel-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  border: 2px solid var(--pixel-dark);
  box-shadow: 3px 3px 0 var(--pixel-dark);
}

.contact-main__email-info {
  flex-grow: 1;
}

.contact-main__email-label {
  display: block;
  font-size: 0.8rem;
  color: var(--pixel-gray);
}

.contact-main__email-address {
  display: block;
  font-weight: 700;
  font-size: 1rem;
  color: var(--pixel-primary);
}

/* Contact Cards */
.contact-cards {
  display: flex;
  flex-direction: column;
  gap: calc(var(--block-unit) * 3);
}

.contact-card {
  padding: calc(var(--block-unit) * 4);
  background: var(--pixel-white);
  border: var(--border-width) solid var(--pixel-border);
  box-shadow: 4px 4px 0 var(--pixel-border);
  transition: all var(--transition);
}

.contact-card:hover {
  transform: translate(-3px, -3px);
  box-shadow: 7px 7px 0 var(--pixel-border);
}

.contact-card__icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: calc(var(--block-unit) * 2);
  border: 2px solid;
}

.contact-card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: calc(var(--block-unit));
}

.contact-card p {
  font-size: 0.9rem;
  color: var(--pixel-gray);
  margin-bottom: calc(var(--block-unit) * 2);
  line-height: 1.7;
}

/* Contact Info Box */
.contact-info-box {
  max-width: 700px;
  margin: 0 auto;
  background: var(--pixel-white);
  border: var(--border-width) solid var(--pixel-border);
  box-shadow: 8px 8px 0 var(--pixel-border);
  padding: calc(var(--block-unit) * 5);
}

.contact-info-box h3 {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: calc(var(--block-unit) * 4);
  text-align: center;
}

.contact-info-items {
  display: flex;
  flex-direction: column;
  gap: calc(var(--block-unit) * 2);
}

.contact-info-item {
  display: flex;
  padding: calc(var(--block-unit) * 2) 0;
  border-bottom: 2px dashed var(--pixel-border);
}

.contact-info-item:last-child { border-bottom: none; }

.contact-info-item__label {
  flex-shrink: 0;
  width: 100px;
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--pixel-gray);
}

.contact-info-item__value {
  font-size: 1rem;
}

.contact-info-item__value a {
  color: var(--pixel-primary);
  font-weight: 600;
  text-decoration: underline;
  text-decoration-style: dashed;
}

/* ===== Supported By ===== */
.supported-by {
  padding: 90px 0;
  background: var(--pixel-white);
  border-top: var(--border-width) solid var(--pixel-border);
}

.supported-by__header {
  text-align: center;
  margin-bottom: calc(var(--block-unit) * 5);
}

.supported-by__title {
  font-size: clamp(1.8rem, 3vw, 2.2rem);
  font-weight: 800;
  line-height: 1.3;
}

.supported-by__grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: calc(var(--block-unit) * 3);
}

.supported-by__item {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 150px;
  padding: calc(var(--block-unit) * 3);
  background: var(--pixel-white);
  border: var(--border-width) solid var(--pixel-border);
  box-shadow: 6px 6px 0 var(--pixel-border);
  transition: all var(--transition);
}

.supported-by__item:hover {
  transform: translate(-3px, -3px);
  box-shadow: 9px 9px 0 var(--pixel-border);
  background: var(--pixel-light);
}

.supported-by__item:focus-visible {
  outline: 3px solid var(--pixel-primary);
  outline-offset: 3px;
}

.supported-by__logo {
  width: 100%;
  max-width: 220px;
  max-height: 88px;
  object-fit: contain;
}

/* ===== Footer - Block Style ===== */
.footer {
  background: var(--pixel-dark);
  color: var(--pixel-white);
  padding: 80px 0 0;
  border-top: var(--border-width) solid var(--pixel-border);
}

.footer__top {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: calc(var(--block-unit) * 8);
  padding-bottom: calc(var(--block-unit) * 6);
  border-bottom: 2px solid rgba(255,255,255,0.1);
}

.footer__brand {}

.footer__brand-header {
  display: flex;
  align-items: center;
  gap: calc(var(--block-unit) * 2);
  margin-bottom: calc(var(--block-unit) * 2);
}

.footer__logo {
  height: 36px;
  width: auto;
  display: block;
  image-rendering: pixelated;
}

.footer__brand-text {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--pixel-white);
}

.footer__tagline {
  font-size: 0.9rem;
  color: rgba(255,255,255,0.6);
  line-height: 1.6;
}

.footer__links {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: calc(var(--block-unit) * 4);
}

.footer__col-title {
  font-size: 0.8rem;
  font-weight: 700;
  color: rgba(255,255,255,0.4);
  text-transform: uppercase;
  letter-spacing: 0.15em;
  margin-bottom: calc(var(--block-unit) * 2);
  font-family: var(--font-en);
}

.footer__link {
  display: flex;
  align-items: center;
  gap: calc(var(--block-unit));
  font-size: 0.95rem;
  color: rgba(255,255,255,0.7);
  padding: calc(var(--block-unit) / 2) 0;
  transition: color var(--transition);
}

.footer__link:hover {
  color: var(--pixel-white);
}

.footer__bottom {
  padding: calc(var(--block-unit) * 3) 0;
  text-align: center;
  font-size: 0.85rem;
  color: rgba(255,255,255,0.4);
  font-family: var(--font-en);
  letter-spacing: 0.1em;
}