/* ============================================================
   Course Pages – page-course.css
   ============================================================ */

/* ---- Course Hero color variants ---- */
.page-hero--elementary { background: linear-gradient(135deg, #082E18 0%, #1A6B3A 100%); }
.page-hero--junior     { background: linear-gradient(135deg, #0F4A28 0%, #1A8A4A 100%); }
.page-hero--high       { background: linear-gradient(135deg, #1A6B3A 0%, #2EAA70 100%); }
.page-hero--eiken      { background: linear-gradient(135deg, #7B5A00 0%, #C49A00 100%); }
.page-hero--course     { background: linear-gradient(135deg, #082E18 0%, #0F4A28 60%, #1A8A4A 100%); }

/* ---- Course catch phrase ---- */
.course-catch {
  text-align: center;
  max-width: 720px;
  margin-inline: auto;
  margin-bottom: var(--space-12);
}

.course-catch__text {
  font-size: clamp(1.125rem, 2.5vw, 1.5rem);
  font-weight: var(--weight-bold);
  color: var(--color-navy);
  line-height: var(--leading-tight);
  padding: var(--space-6) var(--space-8);
  background: var(--color-primary-bg);
  border-left: 5px solid var(--color-primary);
  border-radius: 0 var(--radius-lg) var(--radius-lg) 0;
  text-align: left;
}

/* ---- Policy section ---- */
.course-policy {
  background: var(--color-white);
}

.course-policy__inner {
  display: grid;
  gap: var(--space-10);
  align-items: center;
  max-width: 900px;
  margin-inline: auto;
}

@media (min-width: 768px) {
  .course-policy__inner {
    grid-template-columns: 120px 1fr;
    gap: var(--space-8);
    align-items: flex-start;
  }
}

.course-policy__badge {
  width: 100px;
  height: 100px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
  margin-inline: auto;
  flex-shrink: 0;
}

.course-policy__badge--elementary { background: var(--color-primary-bg); }
.course-policy__badge--junior     { background: var(--color-bg-blue); }
.course-policy__badge--high       { background: var(--color-green-light); }
.course-policy__badge--eiken      { background: #FFF8E0; }

.course-policy__heading {
  font-size: var(--text-xl);
  font-weight: var(--weight-bold);
  color: var(--color-navy);
  margin-bottom: var(--space-5);
  padding-bottom: var(--space-3);
  border-bottom: 2px solid var(--color-border);
}

.course-policy__text {
  font-size: var(--text-base);
  color: var(--color-text);
  line-height: var(--leading-loose);
}

.course-policy__text p + p {
  margin-top: var(--space-4);
}

.course-policy__note {
  margin-top: var(--space-5);
  padding-top: var(--space-4);
  border-top: 1px solid var(--color-border);
  font-size: var(--text-sm);
  color: var(--color-text-sub);
}

.course-policy__note a {
  color: var(--color-primary);
  text-decoration: underline;
}

/* ---- Point badge ---- */
.course-point-badge {
  display: inline-block;
  background: var(--color-primary);
  color: var(--color-white);
  font-weight: var(--weight-bold);
  font-size: var(--text-sm);
  padding: var(--space-2) var(--space-5);
  border-radius: var(--radius-full);
  margin-bottom: var(--space-6);
}

/* ---- Wishes section ---- */
.course-wishes {
  background: var(--color-bg-gray);
}

.course-wishes__grid {
  display: grid;
  gap: var(--space-5);
}

@media (min-width: 640px) {
  .course-wishes__grid { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 1024px) {
  .course-wishes__grid { grid-template-columns: repeat(3, 1fr); }
}

.wish-card {
  background: var(--color-white);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  box-shadow: var(--shadow-card);
  border-top: 4px solid var(--color-primary);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.wish-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.wish-card__title {
  font-size: var(--text-md);
  font-weight: var(--weight-bold);
  color: var(--color-navy);
  margin-bottom: var(--space-4);
  padding-bottom: var(--space-3);
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.wish-card__title::before {
  content: '✓';
  color: var(--color-primary);
  font-weight: var(--weight-black);
  flex-shrink: 0;
}

.wish-card__text {
  font-size: var(--text-sm);
  color: var(--color-text-sub);
  line-height: var(--leading-normal);
}

/* Wish card color variants */
.wish-card--junior { border-top-color: var(--color-navy); }
.wish-card--junior .wish-card__title::before { color: var(--color-navy); }

.wish-card--high { border-top-color: var(--color-green); }
.wish-card--high .wish-card__title::before { color: var(--color-green); }

.wish-card--eiken { border-top-color: var(--color-yellow); }
.wish-card--eiken .wish-card__title::before { color: #B8860B; }

/* ---- Curriculum example ---- */
.course-curriculum {
  background: var(--color-white);
}

.course-curriculum__example {
  background: var(--color-bg-gray);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  margin-bottom: var(--space-4);
  border-left: 4px solid var(--color-primary);
  font-size: var(--text-sm);
  color: var(--color-text);
  line-height: var(--leading-loose);
  max-width: 800px;
  margin-inline: auto;
  display: block;
}

.course-curriculum__example + .course-curriculum__example {
  margin-top: var(--space-4);
}

.course-curriculum__note {
  font-size: var(--text-sm);
  color: var(--color-text-sub);
  max-width: 800px;
  margin-inline: auto;
  background: var(--color-bg-blue);
  padding: var(--space-4) var(--space-5);
  border-radius: var(--radius-md);
  line-height: var(--leading-loose);
}

/* ---- Eiken benefits ---- */
.eiken-merits {
  background: var(--color-bg-gray);
}

.eiken-merits__list {
  max-width: 720px;
  margin-inline: auto;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.eiken-merit {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: var(--space-4) var(--space-5);
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  box-shadow: var(--shadow-sm);
  font-size: var(--text-sm);
  color: var(--color-text);
  line-height: var(--leading-normal);
}

.eiken-merit::before {
  content: '●';
  color: #C49A00;
  flex-shrink: 0;
  font-size: 0.7em;
  margin-top: 0.4em;
}

/* ---- Eiken flow ---- */
.eiken-flow {
  background: var(--color-white);
}

.eiken-flow__steps {
  display: flex;
  gap: 0;
  flex-direction: column;
  max-width: 640px;
  margin-inline: auto;
}

@media (min-width: 640px) {
  .eiken-flow__steps {
    flex-direction: row;
    align-items: flex-start;
    justify-content: center;
  }
}

.eiken-flow-step {
  flex: 1;
  text-align: center;
  padding: var(--space-4);
  position: relative;
}

.eiken-flow-step:not(:last-child)::after {
  content: '▼';
  display: block;
  color: var(--color-primary);
  font-size: 1.2rem;
  margin: var(--space-2) auto;
}

@media (min-width: 640px) {
  .eiken-flow-step:not(:last-child)::after {
    content: '▶';
    position: absolute;
    right: -12px;
    top: 50%;
    transform: translateY(-50%);
    margin: 0;
    display: flex;
    align-items: center;
  }
}

.eiken-flow-step__num {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-full);
  background: #C49A00;
  color: var(--color-white);
  font-weight: var(--weight-black);
  font-family: var(--font-en);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--space-3);
}

.eiken-flow-step__text {
  font-size: var(--text-sm);
  font-weight: var(--weight-bold);
  color: var(--color-navy);
}

/* ---- High school 逆算型 box ---- */
.course-strategy {
  background: linear-gradient(135deg, var(--color-navy) 0%, var(--color-navy-light) 100%);
  color: var(--color-white);
  border-radius: var(--radius-xl);
  padding: var(--space-8) var(--space-6);
  max-width: 800px;
  margin-inline: auto;
  margin-bottom: var(--space-10);
}

.course-strategy__title {
  font-size: var(--text-xl);
  font-weight: var(--weight-bold);
  color: var(--color-yellow);
  margin-bottom: var(--space-4);
}

.course-strategy__text {
  font-size: var(--text-sm);
  color: rgba(255,255,255,.85);
  line-height: var(--leading-loose);
}

.course-strategy__text p + p { margin-top: var(--space-4); }

/* ---- Course overview cards (コース紹介ページ) ---- */
.course-overview__grid {
  display: grid;
  gap: var(--space-6);
}

@media (min-width: 640px) {
  .course-overview__grid { grid-template-columns: repeat(2, 1fr); }
}

.course-overview-card {
  display: flex;
  flex-direction: column;
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  text-decoration: none;
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.course-overview-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.course-overview-card__head {
  position: relative;
  aspect-ratio: 5/3;
  overflow: hidden;
  background: var(--color-navy-dark);
}

.course-overview-card__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform var(--transition-slow);
}

.course-overview-card:hover .course-overview-card__img {
  transform: scale(1.04);
}

/* 下からフェードするグラデーションオーバーレイ */
.course-overview-card__head::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to top,
    rgba(0,0,0,.75) 0%,
    rgba(0,0,0,.3) 50%,
    transparent 100%
  );
  pointer-events: none;
}

/* バリアントごとのオーバーレイカラー */
.course-overview-card--elementary .course-overview-card__head::after {
  background: linear-gradient(to top, rgba(15,74,40,.80) 0%, rgba(0,0,0,.2) 55%, transparent 100%);
}
.course-overview-card--junior .course-overview-card__head::after {
  background: linear-gradient(to top, rgba(8,46,24,.80) 0%, rgba(0,0,0,.2) 55%, transparent 100%);
}
.course-overview-card--high .course-overview-card__head::after {
  background: linear-gradient(to top, rgba(26,107,58,.80) 0%, rgba(0,0,0,.2) 55%, transparent 100%);
}
.course-overview-card--eiken .course-overview-card__head::after {
  background: linear-gradient(to top, rgba(100,72,0,.80) 0%, rgba(0,0,0,.2) 55%, transparent 100%);
}

/* テキストをオーバーレイの上に表示 */
.course-overview-card__head-meta {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: var(--space-4) var(--space-5);
  z-index: 1;
}

.course-overview-card__grade {
  font-size: var(--text-xs);
  font-weight: var(--weight-bold);
  color: var(--color-white);
  padding: 0.2em 0.8em;
  border-radius: var(--radius-full);
  display: inline-block;
  margin-bottom: var(--space-2);
  backdrop-filter: blur(4px);
}

.course-overview-card--elementary .course-overview-card__grade { background: rgba(26,138,74,.9); }
.course-overview-card--junior     .course-overview-card__grade { background: rgba(15,74,40,.9); }
.course-overview-card--high       .course-overview-card__grade { background: rgba(46,170,112,.9); }
.course-overview-card--eiken      .course-overview-card__grade { background: rgba(196,154,0,.9); }

.course-overview-card__title {
  font-size: var(--text-xl);
  font-weight: var(--weight-bold);
  color: var(--color-white);
  text-shadow: 0 1px 4px rgba(0,0,0,.4);
}

.course-overview-card__body {
  padding: var(--space-5) var(--space-6);
  background: var(--color-white);
  flex: 1;
}

.course-overview-card__catch {
  font-size: var(--text-sm);
  color: var(--color-text-sub);
  line-height: var(--leading-normal);
  margin-bottom: var(--space-4);
}

.course-overview-card__points {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.course-overview-card__point {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-xs);
  color: var(--color-text-sub);
}

.course-overview-card__point::before {
  content: '✓';
  color: var(--color-primary);
  font-weight: var(--weight-bold);
  flex-shrink: 0;
}

.course-overview-card--junior .course-overview-card__point::before { color: var(--color-navy); }
.course-overview-card--high   .course-overview-card__point::before { color: var(--color-green); }
.course-overview-card--eiken  .course-overview-card__point::before { color: #C49A00; }

.course-overview-card__link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-4) var(--space-6);
  background: var(--color-bg-gray);
  font-size: var(--text-sm);
  font-weight: var(--weight-bold);
  color: var(--color-primary);
}

/* ---- Course grade/subject info ---- */
.course-meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  align-items: center;
  margin-bottom: var(--space-8);
}

.course-grade-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  background: var(--color-primary);
  color: var(--color-white);
  font-size: var(--text-sm);
  font-weight: var(--weight-bold);
  padding: var(--space-2) var(--space-5);
  border-radius: var(--radius-full);
}

.course-subject-tag {
  display: inline-block;
  font-size: var(--text-xs);
  font-weight: var(--weight-bold);
  padding: 0.3em 0.9em;
  border-radius: var(--radius-full);
  background: var(--color-primary-bg);
  color: var(--color-primary);
  border: 1px solid rgba(26,138,74,.2);
}

/* ---- Course Points (3つの強み) ---- */
.course-points {
  background: var(--color-bg-gray);
}

.course-points__grid {
  display: grid;
  gap: var(--space-5);
}

@media (min-width: 640px) {
  .course-points__grid { grid-template-columns: repeat(3, 1fr); }
}

.course-point-card {
  background: var(--color-white);
  border-radius: var(--radius-xl);
  padding: var(--space-6) var(--space-5);
  text-align: center;
  box-shadow: var(--shadow-card);
  border-top: 4px solid var(--color-primary);
}

.course-point-card__num {
  font-size: var(--text-xs);
  font-weight: var(--weight-bold);
  font-family: var(--font-en);
  color: var(--color-primary);
  letter-spacing: .1em;
  margin-bottom: var(--space-2);
}

.course-point-card__icon {
  font-size: 2rem;
  color: var(--color-primary);
  margin-bottom: var(--space-3);
  display: flex;
  justify-content: center;
}

.course-point-card__title {
  font-size: var(--text-base);
  font-weight: var(--weight-bold);
  color: var(--color-navy);
  margin-bottom: var(--space-3);
}

.course-point-card__text {
  font-size: var(--text-sm);
  color: var(--color-text-sub);
  line-height: var(--leading-normal);
}

/* ---- Guarantee box (中学生) ---- */
.course-guarantee {
  background: var(--color-white);
}

.course-guarantee__box {
  max-width: 640px;
  margin-inline: auto;
  background: var(--color-primary-bg);
  border: 2px solid var(--color-primary);
  border-radius: var(--radius-xl);
  padding: var(--space-10) var(--space-8);
  text-align: center;
}

.course-guarantee__badge {
  display: inline-block;
  background: var(--color-primary);
  color: var(--color-white);
  font-size: var(--text-xs);
  font-weight: var(--weight-bold);
  padding: var(--space-1) var(--space-4);
  border-radius: var(--radius-full);
  margin-bottom: var(--space-4);
  letter-spacing: .05em;
}

.course-guarantee__num {
  font-size: var(--text-4xl);
  font-weight: var(--weight-black);
  color: var(--color-primary);
  font-family: var(--font-en);
  line-height: 1;
  margin-bottom: var(--space-2);
}

.course-guarantee__title {
  font-size: var(--text-lg);
  font-weight: var(--weight-bold);
  color: var(--color-navy);
  margin-bottom: var(--space-4);
}

.course-guarantee__text {
  font-size: var(--text-sm);
  color: var(--color-text-sub);
  line-height: var(--leading-loose);
}

/* ---- Exam types (高校生) ---- */
.exam-types {
  background: var(--color-white);
}

.exam-types__grid {
  display: grid;
  gap: var(--space-5);
  max-width: 900px;
  margin-inline: auto;
}

@media (min-width: 640px) {
  .exam-types__grid { grid-template-columns: repeat(3, 1fr); }
}

.exam-type-card {
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-card);
}

.exam-type-card__head {
  background: var(--color-navy);
  color: var(--color-white);
  padding: var(--space-4) var(--space-5);
  text-align: center;
}

.exam-type-card__label {
  font-size: var(--text-xs);
  font-family: var(--font-en);
  letter-spacing: .08em;
  opacity: .7;
  margin-bottom: var(--space-1);
}

.exam-type-card__title {
  font-size: var(--text-base);
  font-weight: var(--weight-bold);
}

.exam-type-card__body {
  background: var(--color-white);
  padding: var(--space-5);
}

.exam-type-card__list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.exam-type-card__list li {
  font-size: var(--text-sm);
  color: var(--color-text);
  padding-left: var(--space-5);
  position: relative;
  line-height: var(--leading-normal);
}

.exam-type-card__list li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--color-primary);
  font-weight: var(--weight-bold);
}

/* ---- Eiken levels ---- */
.eiken-levels {
  background: var(--color-bg-gray);
}

.eiken-levels__grid {
  display: grid;
  gap: var(--space-3);
  max-width: 720px;
  margin-inline: auto;
}

@media (min-width: 640px) {
  .eiken-levels__grid { grid-template-columns: repeat(2, 1fr); }
}

.eiken-level-card {
  background: var(--color-white);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-4) var(--space-5);
  display: flex;
  align-items: center;
  gap: var(--space-4);
  transition: border-color var(--transition-base), box-shadow var(--transition-base);
}

.eiken-level-card:hover {
  border-color: #C49A00;
  box-shadow: var(--shadow-sm);
}

.eiken-level-card__grade {
  font-size: var(--text-base);
  font-weight: var(--weight-black);
  font-family: var(--font-en);
  color: var(--color-white);
  background: #C49A00;
  width: 48px;
  height: 48px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  line-height: 1;
}

.eiken-level-card__title {
  font-size: var(--text-sm);
  font-weight: var(--weight-bold);
  color: var(--color-navy);
}

.eiken-level-card__sub {
  font-size: var(--text-xs);
  color: var(--color-text-sub);
  margin-top: 2px;
}

/* ---- Course Nav (他コースへの誘導) ---- */
.course-nav {
  background: var(--color-bg-gray);
}

.course-nav__grid {
  display: grid;
  gap: var(--space-4);
}

@media (min-width: 640px) {
  .course-nav__grid { grid-template-columns: repeat(3, 1fr); }
}

.course-nav-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  display: flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-base);
  border: 2px solid transparent;
}

.course-nav-card:hover {
  border-color: var(--color-primary);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.course-nav-card__icon {
  font-size: 2rem;
  flex-shrink: 0;
  line-height: 1;
}

.course-nav-card__body { flex: 1; min-width: 0; }

.course-nav-card__label {
  font-size: var(--text-xs);
  color: var(--color-text-sub);
  margin-bottom: 2px;
}

.course-nav-card__title {
  font-size: var(--text-sm);
  font-weight: var(--weight-bold);
  color: var(--color-navy);
}

.course-nav-card__arrow {
  color: var(--color-primary);
  flex-shrink: 0;
}

/* ---- Course CTA ---- */
.course-cta {
  background: linear-gradient(135deg, var(--color-navy) 0%, var(--color-navy-light) 100%);
  color: var(--color-white);
  text-align: center;
  padding-block: var(--space-16);
}

.course-cta__title {
  font-size: clamp(1.25rem, 3vw, 1.875rem);
  font-weight: var(--weight-bold);
  line-height: var(--leading-tight);
  margin-bottom: var(--space-4);
}

.course-cta__text {
  font-size: var(--text-base);
  opacity: .85;
  line-height: var(--leading-loose);
  margin-bottom: var(--space-8);
  max-width: 500px;
  margin-inline: auto;
}

.course-cta__actions {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  align-items: center;
  justify-content: center;
}

@media (min-width: 480px) {
  .course-cta__actions { flex-direction: row; }
}

.course-cta__tel {
  margin-top: var(--space-5);
  font-size: var(--text-sm);
  opacity: .65;
}