/* ============================================================
   SERVICE SECTION BASE
   共通ベース: sv-dev / sv-consulting / sv-training の
   セクション基盤・ヘッダー・カード・レスポンシブを集約

   使い方: HTML に .sv-base クラスを追加、子要素は .sv-base__* を併記
   ページ固有の差分は各セクションCSS でオーバーライド
   ============================================================ */

/* ---- Section Base ---- */
.sv-base {
  position: relative;
  z-index: var(--z-content, 10);
  padding: 96px var(--s-gutter, 32px);
}

/* ---- Container ---- */
.sv-base__container {
  max-width: var(--s-container, 1200px);
  margin: 0 auto;
}

/* ---- Section Header ---- */
.sv-base__header {
  max-width: 640px;
  margin-bottom: 64px;
}

.sv-base__eyebrow {
  display: inline-block;
  font-family: var(--f-label, 'Inter', sans-serif);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--c-orange, #E8672A);
  margin-bottom: 12px;
}

.sv-base__heading {
  font-family: var(--f-heading-ja, 'Noto Serif JP', serif);
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
  font-weight: 700;
  line-height: 1.4;
  color: var(--c-text, #1A1A1A);
  margin: 0 0 20px;
  letter-spacing: 0.04em;
}

.sv-base__line {
  width: 48px;
  height: 3px;
  background: var(--c-orange, #E8672A);
  border-radius: 2px;
  margin-bottom: 20px;
}

.sv-base__lead {
  font-family: var(--f-body, 'Noto Sans JP', sans-serif);
  font-size: clamp(0.9rem, 1.5vw, 1rem);
  line-height: 1.8;
  color: var(--c-text-light, #555555);
  margin: 0;
}

/* ---- Cards Grid ---- */
.sv-base__grid {
  display: grid;
  gap: 24px;
}

/* ---- Single Card ---- */
.sv-base__card {
  position: relative;
  background: #FFFFFF;
  border: 1px solid var(--c-border, #E5E5E5);
  border-radius: 12px;
  padding: 32px 24px 28px;
  transition: transform var(--t-base, 0.4s) var(--ease-out),
              box-shadow var(--t-base, 0.4s) var(--ease-out),
              border-color var(--t-base, 0.4s);
  overflow: hidden;
}

/* オレンジ→ゴールド上端グラデーションバー */
.sv-base__card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--c-orange, #E8672A), var(--c-gold));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--t-base, 0.4s) var(--ease-out);
}

.sv-base__card:hover {
  transform: translateY(-6px);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.10);
  border-color: var(--c-orange-light, #F0834E);
}

.sv-base__card:hover::before {
  transform: scaleX(1);
}

/* ---- Card Icon ---- */
.sv-base__card-icon {
  width: 52px;
  height: 52px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--c-orange, #E8672A) 0%, var(--c-orange-light, #F0834E) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
  color: #FFFFFF;
  flex-shrink: 0;
}

/* ---- Card Number ---- */
.sv-base__card-num {
  font-family: var(--f-label, 'Inter', sans-serif);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--c-text-muted, #999999);
  margin-bottom: 8px;
}

/* ---- Card Title ---- */
.sv-base__card-title {
  font-family: var(--f-heading-ja, 'Noto Serif JP', serif);
  font-size: 1rem;
  font-weight: 700;
  color: var(--c-text, #1A1A1A);
  margin: 0 0 10px;
  line-height: 1.4;
  letter-spacing: 0.04em;
}

/* ---- Card Body ---- */
.sv-base__card-body {
  font-family: var(--f-body, 'Noto Sans JP', sans-serif);
  font-size: 0.875rem;
  line-height: 1.75;
  color: var(--c-text-light, #555555);
  margin: 0;
}

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

/* ---- Tablet (≤ 1024px) ---- */
@media (max-width: 1024px) {
  .sv-base__grid {
    gap: 20px;
  }

  .sv-base__card {
    padding: 28px 22px 24px;
  }
}

/* ---- Mobile (≤ 768px) ---- */
@media (max-width: 768px) {
  .sv-base {
    padding: 72px 20px;
  }

  .sv-base__header {
    margin-bottom: 48px;
  }

  .sv-base__heading {
    font-size: clamp(1.5rem, 5vw, 1.9rem);
  }

  .sv-base__grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .sv-base__card {
    padding: 24px 20px 22px;
  }

  .sv-base__card-icon {
    width: 44px;
    height: 44px;
  }
}

/* ---- Small Mobile (≤ 480px) ---- */
@media (max-width: 480px) {
  .sv-base {
    padding: 60px 16px;
  }
}