/* =============================================
   KOROMO ATHLETIC TRAINING — Athlete Class CSS
   Page: athlete-class.html（アスリート塾）
   Inherits: home.css variables & base styles
   Accent: Teal-Blue (#1b6b7d) + Navy (#1b3a4b)
   ============================================= */

/* ---------- Page-level Variables ---------- */
:root {
  --ac-teal: #1b6b7d;
  --ac-teal-light: #238a9e;
  --ac-teal-bg: rgba(27,107,125,0.06);
  --ac-teal-bg-strong: rgba(27,107,125,0.10);
  --ac-yellow: #f0c040;
  --ac-yellow-bg: #fdf8e8;
}

/* ---------- Utility ---------- */
.pc-only { display: inline; }
.sp-only { display: none; }


/* =============================================
   1. HERO
   ============================================= */
.ac-hero {
  position: relative;
  margin-top: 72px;
  height: 72vh;
  min-height: 480px;
  max-height: 720px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}
.ac-hero-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}
.ac-hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    160deg,
    rgba(27,58,75,0.62) 0%,
    rgba(27,107,125,0.30) 50%,
    rgba(0,0,0,0.18) 100%
  );
}
.ac-hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  padding: 0 32px;
  max-width: 780px;
}
.ac-hero-en {
  font-family: var(--font-serif);
  font-size: 16px;
  font-weight: 400;
  letter-spacing: 5px;
  color: rgba(255,255,255,0.7);
  text-transform: uppercase;
  margin-bottom: 10px;
  animation: acFadeUp 1s var(--ease) both;
}
.ac-hero-title {
  font-size: 42px;
  font-weight: 700;
  color: var(--white);
  letter-spacing: 4px;
  line-height: 1.4;
  margin-bottom: 18px;
  text-shadow: 0 2px 20px rgba(0,0,0,0.3);
  animation: acFadeUp 1s .12s var(--ease) both;
}
.ac-hero-catch {
  font-size: 17px;
  font-weight: 500;
  color: rgba(255,255,255,0.92);
  letter-spacing: 1px;
  line-height: 1.7;
  margin-bottom: 12px;
  animation: acFadeUp 1s .24s var(--ease) both;
}
.ac-hero-sub {
  font-size: 14px;
  color: rgba(255,255,255,0.65);
  line-height: 1.9;
  margin-bottom: 32px;
  animation: acFadeUp 1s .36s var(--ease) both;
}
.ac-hero-buttons {
  display: flex;
  gap: 14px;
  justify-content: center;
  flex-wrap: wrap;
  animation: acFadeUp 1s .5s var(--ease) both;
}

@keyframes acFadeUp {
  from { opacity: 0; transform: translateY(22px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* Hero Buttons */
.ac-btn-hero-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 34px;
  background: var(--white);
  color: var(--navy);
  font-size: 14px;
  font-weight: 600;
  border-radius: 50px;
  transition: all var(--duration) var(--ease);
  box-shadow: 0 4px 20px rgba(0,0,0,0.15);
}
.ac-btn-hero-primary:hover {
  background: var(--navy);
  color: var(--white);
  transform: translateY(-2px);
  box-shadow: 0 6px 28px rgba(27,58,75,0.35);
}
.ac-btn-hero-line {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 34px;
  background: var(--line-color);
  color: var(--white);
  font-size: 14px;
  font-weight: 600;
  border-radius: 50px;
  transition: all var(--duration) var(--ease);
  box-shadow: 0 4px 20px rgba(6,199,85,0.25);
}
.ac-btn-hero-line:hover {
  background: #05b04d;
  transform: translateY(-2px);
}


/* =============================================
   COMMON SECTION
   ============================================= */
.ac-section {
  padding: var(--section-py) 0;
  background: var(--white);
}
.ac-section.alt {
  background: var(--pale-gray);
}
.ac-section-head {
  text-align: center;
  margin-bottom: 56px;
}
.ac-en {
  display: block;
  font-family: var(--font-serif);
  font-size: 14px;
  font-weight: 400;
  letter-spacing: 3px;
  color: var(--ac-teal);
  text-transform: uppercase;
  margin-bottom: 8px;
}
.ac-heading {
  font-size: 28px;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: 1px;
  line-height: 1.5;
}
.ac-subheading {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-top: 12px;
}


/* =============================================
   2. ABOUT
   ============================================= */
.ac-about-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 56px;
  align-items: start;
}
.ac-about-photo {
  border-radius: var(--radius-md);
  overflow: hidden;
  aspect-ratio: 4/3;
}
.ac-about-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .6s var(--ease);
}
.ac-about-photo:hover img {
  transform: scale(1.03);
}

.ac-about-lead {
  font-size: 18px;
  font-weight: 500;
  color: var(--text-primary);
  line-height: 2;
  margin-bottom: 20px;
}
.ac-about-lead strong {
  color: var(--ac-teal);
}
.ac-about-desc {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 2;
  margin-bottom: 12px;
}

.ac-about-points {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin-top: 24px;
}
.ac-about-point {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 18px;
  background: var(--ac-teal-bg);
  border-radius: var(--radius-sm);
  transition: background var(--duration) var(--ease);
}
.ac-about-point:hover {
  background: var(--ac-teal-bg-strong);
}
.ac-point-icon {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--white);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--ac-teal);
  font-size: 14px;
  flex-shrink: 0;
}
.ac-about-point span:last-child {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
}


/* =============================================
   3. WHY
   ============================================= */
.ac-why-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.ac-why-card {
  background: var(--white);
  border-radius: var(--radius-md);
  padding: 36px 28px;
  box-shadow: var(--shadow-subtle);
  transition: transform var(--duration) var(--ease), box-shadow var(--duration) var(--ease);
  position: relative;
  border-top: 3px solid transparent;
}
.ac-why-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  border-top-color: var(--ac-teal);
}
.ac-why-num {
  font-family: var(--font-serif);
  font-size: 36px;
  font-weight: 300;
  color: var(--ac-teal);
  opacity: .3;
  line-height: 1;
  margin-bottom: 16px;
}
.ac-why-card h3 {
  font-size: 16px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 10px;
  line-height: 1.5;
}
.ac-why-card p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.8;
}
/* 5-card: last row 2 cards centered */
.ac-why-grid .ac-why-card:nth-child(4) {
  grid-column: 1 / 2;
}
.ac-why-grid .ac-why-card:nth-child(5) {
  grid-column: 2 / 3;
}


/* =============================================
   4 & 5. EXPLAIN BLOCKS (Training / Conditioning)
   ============================================= */
.ac-explain-block {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 56px;
  align-items: start;
}
.ac-explain-block.reverse {
  grid-template-columns: 1.2fr 1fr;
}
.ac-explain-block.reverse .ac-explain-photo {
  order: 2;
}
.ac-explain-block.reverse .ac-explain-content {
  order: 1;
}

.ac-explain-photo {
  border-radius: var(--radius-md);
  overflow: hidden;
  aspect-ratio: 4/3;
}
.ac-explain-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .6s var(--ease);
}
.ac-explain-photo:hover img {
  transform: scale(1.03);
}

.ac-explain-lead {
  font-size: 18px;
  font-weight: 600;
  color: var(--text-primary);
  line-height: 1.9;
  margin-bottom: 16px;
}
.ac-explain-desc {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 2;
  margin-bottom: 12px;
}

.ac-explain-tags {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-top: 24px;
}
.ac-explain-tag {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 16px;
  background: var(--ac-teal-bg);
  border-radius: var(--radius-sm);
  font-size: 13px;
  font-weight: 600;
  color: var(--text-primary);
}
.ac-explain-tag i {
  color: var(--ac-teal);
  font-size: 15px;
  width: 20px;
  text-align: center;
}

.ac-conditioning-keywords {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-top: 24px;
}
.ac-conditioning-keywords span {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  background: var(--white);
  border: 1.5px solid var(--light-gray);
  border-radius: 50px;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-primary);
  transition: all var(--duration) var(--ease);
}
.ac-conditioning-keywords span:hover {
  border-color: var(--ac-teal);
  color: var(--ac-teal);
}
.ac-conditioning-keywords span i {
  color: var(--ac-teal);
  font-size: 14px;
}


/* =============================================
   6. RETURN TO PLAY
   ============================================= */
.ac-rtp-intro {
  text-align: center;
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 2;
  margin-bottom: 56px;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

.ac-rtp-steps {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  gap: 0;
  max-width: 1100px;
  margin: 0 auto;
}
.ac-rtp-step {
  flex: 1;
  text-align: center;
  padding: 0 12px;
  position: relative;
}
.ac-rtp-step-num {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--ac-teal);
  color: var(--white);
  font-family: var(--font-en);
  font-size: 15px;
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 14px;
}
.ac-rtp-step-icon {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--ac-teal-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
  font-size: 20px;
  color: var(--ac-teal);
}
.ac-rtp-step h3 {
  font-size: 14px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 8px;
  line-height: 1.5;
}
.ac-rtp-step p {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.7;
}

.ac-rtp-connector {
  display: flex;
  align-items: center;
  padding-top: 48px;
  color: var(--mid-gray);
  font-size: 14px;
  flex-shrink: 0;
}


/* =============================================
   7. PRICING PLAN
   ============================================= */

/* Campaign Banner */
.ac-campaign {
  margin-bottom: 28px;
}
.ac-campaign-inner {
  background: linear-gradient(135deg, var(--ac-yellow-bg) 0%, #fef6d8 100%);
  border: 2px solid var(--ac-yellow);
  border-radius: var(--radius-md);
  padding: 24px 32px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.ac-campaign-badge {
  display: inline-block;
  background: var(--ac-yellow);
  color: #333;
  padding: 3px 16px;
  border-radius: 20px;
  font-family: var(--font-en);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 2px;
  margin-bottom: 10px;
}
.ac-campaign-text {
  font-size: 28px;
  font-weight: 700;
  color: var(--text-primary);
}
.ac-campaign-text strong {
  font-size: 44px;
  color: #c0392b;
  letter-spacing: -1px;
}
.ac-campaign-note {
  font-size: 13px;
  color: var(--text-secondary);
  margin-top: 6px;
}

/* Trial Price */
.ac-trial {
  margin-bottom: 36px;
}
.ac-trial-inner {
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 12px;
  padding: 20px;
  background: var(--white);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-subtle);
}
.ac-trial-label {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-primary);
}
.ac-trial-price {
  font-family: var(--font-en);
  font-size: 32px;
  font-weight: 600;
  color: var(--ac-teal);
}
.ac-trial-tax {
  font-size: 13px;
  color: var(--text-secondary);
}

/* Plan Cards */
.ac-plans {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
  margin-bottom: 48px;
}
.ac-plan-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 40px 32px;
  box-shadow: var(--shadow-card);
  position: relative;
  transition: transform var(--duration) var(--ease), box-shadow var(--duration) var(--ease);
  border: 2px solid transparent;
}
.ac-plan-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}
.ac-plan-card.recommended {
  border-color: var(--ac-teal);
}
.ac-plan-badge {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--ac-teal);
  color: var(--white);
  padding: 5px 24px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 1px;
  white-space: nowrap;
}
.ac-plan-name {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-primary);
  text-align: center;
  margin-bottom: 16px;
}
.ac-plan-price {
  text-align: center;
  margin-bottom: 20px;
  line-height: 1;
}
.ac-plan-yen {
  font-family: var(--font-en);
  font-size: 18px;
  font-weight: 400;
  color: var(--ac-teal);
  vertical-align: baseline;
}
.ac-plan-amount {
  font-family: var(--font-en);
  font-size: 44px;
  font-weight: 600;
  color: var(--ac-teal);
  letter-spacing: -1px;
}
.ac-plan-per {
  font-size: 14px;
  color: var(--text-secondary);
  margin-left: 4px;
}
.ac-plan-desc {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.8;
  text-align: center;
  margin-bottom: 24px;
  padding: 0 8px;
}
.ac-plan-includes {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 28px;
}
.ac-plan-includes li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 14px;
  color: var(--text-primary);
  line-height: 1.6;
}
.ac-plan-includes li i {
  color: var(--ac-teal);
  font-size: 13px;
  margin-top: 3px;
  flex-shrink: 0;
}
.ac-plan-sub {
  font-weight: 700;
  color: var(--ac-teal);
}
.ac-plan-btn {
  display: block;
  text-align: center;
  padding: 14px 24px;
  background: var(--ac-teal);
  color: var(--white);
  font-size: 14px;
  font-weight: 600;
  border-radius: 50px;
  transition: all var(--duration) var(--ease);
}
.ac-plan-btn:hover {
  background: var(--ac-teal-light);
  transform: translateY(-2px);
  box-shadow: 0 4px 16px rgba(27,107,125,0.25);
}
.ac-plan-btn.secondary {
  background: transparent;
  color: var(--ac-teal);
  border: 2px solid var(--ac-teal);
}
.ac-plan-btn.secondary:hover {
  background: var(--ac-teal);
  color: var(--white);
}

/* Option Menu */
.ac-option {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 40px;
  box-shadow: var(--shadow-subtle);
}
.ac-option-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.ac-option-title i {
  color: var(--ac-teal);
}
.ac-option-intro {
  font-size: 14px;
  color: var(--text-secondary);
  margin-bottom: 24px;
  line-height: 1.7;
}
.ac-option-intro strong {
  color: #c0392b;
  font-size: 15px;
}

.ac-option-table-wrap {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}
.ac-option-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 520px;
}
.ac-option-table thead th {
  padding: 14px 16px;
  font-size: 13px;
  font-weight: 700;
  color: var(--text-primary);
  text-align: center;
  border-bottom: 2px solid var(--light-gray);
  white-space: nowrap;
}
.ac-option-table thead th:first-child {
  text-align: left;
}
.ac-student-col {
  background: var(--ac-teal-bg);
}
.ac-discount-badge {
  display: inline-block;
  background: #c0392b;
  color: var(--white);
  padding: 2px 8px;
  border-radius: 10px;
  font-size: 10px;
  font-weight: 700;
  margin-left: 6px;
  vertical-align: middle;
}
.ac-option-table tbody td {
  padding: 14px 16px;
  font-size: 14px;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--light-gray);
  text-align: center;
}
.ac-option-table tbody td:first-child {
  text-align: left;
  font-weight: 500;
  color: var(--text-primary);
}
.ac-option-table tbody td strong {
  color: var(--ac-teal);
  font-size: 15px;
}

.ac-option-note {
  font-size: 12px;
  color: var(--text-light);
  line-height: 1.8;
  margin-top: 16px;
}


/* =============================================
   8. USAGE RECOMMEND
   ============================================= */
.ac-usage-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
  margin-bottom: 32px;
}
.ac-usage-card {
  background: var(--pale-gray);
  border-radius: var(--radius-lg);
  padding: 40px 32px;
  text-align: center;
  transition: transform var(--duration) var(--ease);
}
.ac-usage-card:hover {
  transform: translateY(-3px);
}
.ac-usage-icon {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--ac-teal-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
  font-size: 22px;
  color: var(--ac-teal);
}
.ac-usage-card h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 12px;
}
.ac-usage-time {
  font-size: 15px;
  color: var(--text-secondary);
  margin-bottom: 16px;
  padding: 10px 0;
  border-top: 1px solid var(--light-gray);
  border-bottom: 1px solid var(--light-gray);
}
.ac-usage-time strong {
  font-family: var(--font-en);
  font-size: 26px;
  font-weight: 600;
  color: var(--ac-teal);
}
.ac-usage-card p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.8;
}

.ac-usage-note {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  padding: 24px 28px;
  background: var(--ac-teal-bg);
  border-radius: var(--radius-md);
  border-left: 3px solid var(--ac-teal);
}
.ac-usage-note i {
  color: var(--ac-teal);
  font-size: 18px;
  flex-shrink: 0;
  margin-top: 2px;
}
.ac-usage-note p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.8;
}


/* =============================================
   9. FOR YOU
   ============================================= */
.ac-foryou-list {
  max-width: 700px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.ac-foryou-item {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 18px 24px;
  background: var(--white);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-subtle);
  transition: transform var(--duration) var(--ease), box-shadow var(--duration) var(--ease);
}
.ac-foryou-item:hover {
  transform: translateX(4px);
  box-shadow: var(--shadow-card);
}
.ac-foryou-item i {
  color: var(--ac-teal);
  font-size: 18px;
  flex-shrink: 0;
}
.ac-foryou-item span {
  font-size: 15px;
  font-weight: 500;
  color: var(--text-primary);
}


/* =============================================
   10. FAQ
   ============================================= */
.ac-faq {
  max-width: 800px;
  margin: 0 auto;
}
.ac-faq-item {
  border-bottom: 1px solid var(--light-gray);
}
.ac-faq-q {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 22px 0;
  cursor: pointer;
  user-select: none;
  transition: color var(--duration) var(--ease);
}
.ac-faq-q:hover {
  color: var(--ac-teal);
}
.ac-faq-label {
  font-family: var(--font-serif);
  font-size: 18px;
  font-weight: 600;
  color: var(--ac-teal);
  flex-shrink: 0;
}
.ac-faq-icon {
  margin-left: auto;
  font-size: 12px;
  color: var(--text-light);
  transition: transform var(--duration) var(--ease);
  flex-shrink: 0;
}
.ac-faq-item.open .ac-faq-icon {
  transform: rotate(180deg);
}
.ac-faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height .4s var(--ease), padding .4s var(--ease);
}
.ac-faq-item.open .ac-faq-a {
  max-height: 300px;
  padding-bottom: 22px;
}
.ac-faq-a p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.9;
  padding-left: 30px;
}


/* =============================================
   11. CTA
   ============================================= */
.ac-cta {
  background: linear-gradient(135deg, var(--navy) 0%, var(--ac-teal) 100%);
  padding: 80px 0;
  text-align: center;
}
.ac-cta-en {
  font-family: var(--font-serif);
  font-size: 14px;
  font-weight: 400;
  letter-spacing: 4px;
  color: rgba(255,255,255,0.5);
  text-transform: uppercase;
  margin-bottom: 12px;
}
.ac-cta-title {
  font-size: 28px;
  font-weight: 700;
  color: var(--white);
  letter-spacing: 1px;
  line-height: 1.6;
  margin-bottom: 16px;
}
.ac-cta-sub {
  font-size: 15px;
  color: rgba(255,255,255,0.65);
  line-height: 1.8;
  margin-bottom: 36px;
}
.ac-cta-buttons {
  display: flex;
  gap: 14px;
  justify-content: center;
  flex-wrap: wrap;
}
.ac-btn-cta-white {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 36px;
  background: var(--white);
  color: var(--navy);
  font-size: 14px;
  font-weight: 600;
  border-radius: 50px;
  transition: all var(--duration) var(--ease);
}
.ac-btn-cta-white:hover {
  background: var(--pale-gray);
  transform: translateY(-2px);
  box-shadow: 0 4px 20px rgba(255,255,255,0.2);
}
.ac-btn-cta-line {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 36px;
  background: var(--line-color);
  color: var(--white);
  font-size: 14px;
  font-weight: 600;
  border-radius: 50px;
  transition: all var(--duration) var(--ease);
}
.ac-btn-cta-line:hover {
  background: #05b04d;
  transform: translateY(-2px);
}


/* =============================================
   RESPONSIVE
   ============================================= */

/* Tablet */
@media (max-width: 1024px) {
  .ac-about-grid { gap: 40px; }
  .ac-explain-block { gap: 40px; }

  /* RTP steps become 3+connector... keep horizontal but tighter */
  .ac-rtp-step { padding: 0 8px; }
  .ac-rtp-step h3 { font-size: 13px; }
  .ac-rtp-step p { font-size: 12px; }
}

/* Mobile */
@media (max-width: 768px) {
  .pc-only { display: none; }
  .sp-only { display: inline; }

  /* Hero */
  .ac-hero {
    margin-top: 64px;
    height: 62vh;
    min-height: 400px;
  }
  .ac-hero-title { font-size: 30px; letter-spacing: 2px; }
  .ac-hero-catch { font-size: 15px; }
  .ac-hero-sub { font-size: 13px; }
  .ac-hero-buttons {
    flex-direction: column;
    align-items: stretch;
    gap: 10px;
  }
  .ac-btn-hero-primary, .ac-btn-hero-line {
    width: 100%;
    justify-content: center;
    padding: 13px 24px;
  }

  /* Section */
  .ac-section-head { margin-bottom: 36px; }
  .ac-heading { font-size: 22px; }
  .ac-en { font-size: 12px; }
  .ac-subheading { font-size: 14px; }

  /* About */
  .ac-about-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }
  .ac-about-lead { font-size: 16px; }
  .ac-about-points { grid-template-columns: 1fr; gap: 10px; }

  /* Why */
  .ac-why-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  .ac-why-card { padding: 28px 24px; }
  .ac-why-grid .ac-why-card:nth-child(4),
  .ac-why-grid .ac-why-card:nth-child(5) {
    grid-column: auto;
  }

  /* Explain */
  .ac-explain-block,
  .ac-explain-block.reverse {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  .ac-explain-block.reverse .ac-explain-photo { order: 0; }
  .ac-explain-block.reverse .ac-explain-content { order: 0; }
  .ac-explain-lead { font-size: 16px; }
  .ac-explain-tags { grid-template-columns: 1fr; gap: 8px; }
  .ac-conditioning-keywords { gap: 10px; }
  .ac-conditioning-keywords span { font-size: 12px; padding: 8px 14px; }

  /* RTP Steps */
  .ac-rtp-intro { font-size: 14px; margin-bottom: 36px; }
  .ac-rtp-steps {
    flex-direction: column;
    align-items: center;
    gap: 0;
  }
  .ac-rtp-step {
    width: 100%;
    max-width: 360px;
    text-align: center;
    padding: 0;
    margin-bottom: 8px;
  }
  .ac-rtp-connector {
    padding-top: 0;
    transform: rotate(90deg);
    margin: 8px 0;
  }

  /* Plan */
  .ac-campaign-text { font-size: 22px; }
  .ac-campaign-text strong { font-size: 36px; }
  .ac-trial-price { font-size: 26px; }
  .ac-plans {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  .ac-plan-card { padding: 32px 24px; }
  .ac-plan-amount { font-size: 36px; }

  .ac-option { padding: 28px 20px; }

  /* Usage */
  .ac-usage-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  .ac-usage-card { padding: 32px 24px; }

  /* For You */
  .ac-foryou-item { padding: 14px 18px; }
  .ac-foryou-item span { font-size: 14px; }

  /* FAQ */
  .ac-faq-q { font-size: 14px; padding: 18px 0; }
  .ac-faq-a p { font-size: 13px; padding-left: 28px; }

  /* CTA */
  .ac-cta { padding: 60px 0; }
  .ac-cta-title { font-size: 22px; }
  .ac-cta-sub { font-size: 14px; }
  .ac-cta-buttons {
    flex-direction: column;
    align-items: stretch;
    gap: 10px;
  }
  .ac-btn-cta-white, .ac-btn-cta-line {
    width: 100%;
    justify-content: center;
    padding: 14px 24px;
  }
}

/* Small Mobile */
@media (max-width: 480px) {
  .ac-hero-title { font-size: 26px; letter-spacing: 1px; }
  .ac-hero-catch { font-size: 14px; }
  .ac-heading { font-size: 20px; }
  .ac-cta-title { font-size: 20px; }
  .ac-plan-amount { font-size: 32px; }
  .ac-usage-time strong { font-size: 22px; }
}