/* ============================================================
   Portfolio — style.css
   共通スタイルシート
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+JP:wght@400;500;700&family=Inter:wght@400;500;600;700&display=swap');


/* ── リセット & ベース ─────────────────────────────────────── */

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  /* カラートークン */
  --color-primary: #003370;
  /* 青 */
  --color-primary-fg: #ffffff;
  --color-yellow: #f9f871;
  --color-yellow-text: #ca8a04;
  --color-bg: #ffffff;
  --color-fg: #09093f;
  --color-muted-bg: #f3f4f6;
  --color-muted-fg: #6b7280;
  --color-card: #ffffff;
  --color-border: #e5e7eb;

  /* スペーシング */
  --radius: 8px;
  --radius-lg: 16px;

  /* フォント */
  --font: 'Inter', 'Noto Sans JP', sans-serif;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font);
  background-color: var(--color-bg);
  color: var(--color-fg);
  line-height: 1.7;
  font-size: 16px;
}

a {
  color: inherit;
  text-decoration: none;
}

ul {
  list-style: none;
}

img {
  display: block;
  max-width: 100%;
}


/* ── タイポグラフィ ─────────────────────────────────────────── */

h1 {
  font-size: clamp(1rem, 5vw, 2.5rem);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

h2 {
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 700;
  line-height: 1.3;
}

h3 {
  font-size: 1.2rem;
  font-weight: 600;
}

h4 {
  font-size: 1rem;
  font-weight: 600;
}


/* ── レイアウト ─────────────────────────────────────────────── */

.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
}

.container-md {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 24px;
}

section {
  padding: 80px 0;
}


/* ── ナビゲーション ─────────────────────────────────────────── */

.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: 64px;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--color-border);
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
}

.nav__logo {
  font-weight: 700;
  font-size: 1.2rem;
  color: var(--color-primary);
}

.nav__links {
  display: flex;
  gap: 32px;
}

.nav__links a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-muted-fg);
  transition: color 0.2s;
}

.nav__links a:hover,
.nav__links a.active {
  color: var(--color-fg);
}

/* ハンバーガーボタン（モバイル用） */
.nav__menu-btn {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  color: var(--color-fg);
}

/* モバイルメニュー */
.nav__mobile {
  display: none;
  position: fixed;
  top: 64px;
  left: 0;
  right: 0;
  z-index: 99;
  background: #fff;
  border-bottom: 1px solid var(--color-border);
  flex-direction: column;
}

.nav__mobile.is-open {
  display: flex;
}

.nav__mobile a {
  display: block;
  padding: 16px 24px;
  font-weight: 500;
  border-top: 1px solid var(--color-border);
  transition: background 0.2s;
}

.nav__mobile a:hover {
  background: var(--color-muted-bg);
}


/* ── ボタン ─────────────────────────────────────────────────── */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 32px;
  border-radius: var(--radius);
  font-weight: 500;
  font-size: 1rem;
  font-family: var(--font);
  cursor: pointer;
  transition: opacity 0.2s, background 0.2s;
  border: none;
  text-decoration: none;
}

.btn--primary {
  background: var(--color-primary);
  color: var(--color-primary-fg);
}

.btn--primary:hover {
  opacity: 0.88;
}

.btn--outline {
  background: transparent;
  border: 1px solid var(--color-fg);
  color: var(--color-fg);
}

.btn--outline:hover {
  background: var(--color-muted-bg);
}


/* ── バッジ ─────────────────────────────────────────────────── */

.badge {
  display: inline-block;
  padding: 6px 18px;
  background: var(--color-fg);
  color: var(--color-bg);
  border-radius: 999px;
  font-size: 0.875rem;
  font-weight: 500;
  margin-bottom: 24px;
}


/* ── カード ─────────────────────────────────────────────────── */

.card {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 24px;
}

.txt_color {
  color: #4b5563;
}

/* ── セクション背景バリエーション ──────────────────────────── */

.section--hero {
  padding-top: 128px;
  padding-bottom: 80px;
  background: linear-gradient(to bottom, #eff6ff55, #ffffff);
}

.section--muted {
  background: #f9fafb;
}

.section--gradient {
  background: linear-gradient(to bottom, #fefce855, #eff6ff55);
}


/* ── グリッドレイアウト ─────────────────────────────────────── */

.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.grid-5 {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 24px;
}


/* ── 作品カード ─────────────────────────────────────────────── */

.work-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.work-card {
  display: block;
  color: inherit;
  text-decoration: none;
}

/* サムネイル */
.work-card__thumb {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius);
  aspect-ratio: 4 / 3;
  background: var(--color-muted-bg);
  margin-bottom: 16px;
}

.work-card__thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.work-card:hover .work-card__thumb img {
  transform: scale(1.05);
}

/* ホバーオーバーレイ */
.work-card__overlay {
  position: absolute;
  inset: 0;
  background: transparent;
  transition: background 0.3s;
}

.work-card:hover .work-card__overlay {
  background: rgba(29, 78, 216, 0.07);
}

/* 画像サイズバッジ */
.work-card__size {
  position: absolute;
  bottom: 8px;
  right: 8px;
  background: rgba(0, 0, 0, 0.6);
  color: #fff;
  font-size: 0.7rem;
  padding: 3px 8px;
  border-radius: 4px;
  backdrop-filter: blur(4px);
  pointer-events: none;
}

.work-card__site {
  position: absolute;
  bottom: 8px;
  right: 8px;
  background: rgba(0, 0, 0, 0.6);
  color: #fff;
  font-size: 0.7rem;
  padding: 3px 8px;
  border-radius: 4px;
  backdrop-filter: blur(4px);
  pointer-events: none;
}

.work-card__title {
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 4px;
}

.work-card__box {
  padding-left: 0.7rem;
  border-left: 4px solid var(--color-primary);
}

.work-card__meta {
  font-size: 0.875rem;
  color: var(--color-muted-fg);
}

.companyName {
  font-size: 0.875rem;
  font-weight: 600;
}

/* ── スキルアイコン ───────────────────────────────────── */
.work-muted {
  display: flex;
  justify-content: flex-start;
  gap: 16px;
  margin-top: 4px;
}

/* ── セクションヘッダー行 ───────────────────────────────────── */

.section-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  margin-bottom: 48px;
}

.see-all-link {
  background: var(--color-primary);
  color: var(--color-primary-fg);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 32px;
  border-radius: var(--radius) 8px;
  font-weight: 500;
  font-size: 1rem;
  font-family: var(--font);
  cursor: pointer;
  transition: opacity 0.2s, background 0.2s;
  border: none;
  text-decoration: none;
  margin-top: 32px;
}

.see-all-link:hover {
  text-decoration: underline;
}


/* ── 使用ツールカード ───────────────────────────────────────── */

.tool-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  padding: 24px 16px;
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  text-align: center;
  transition: box-shadow 0.2s, transform 0.2s;
}

.tool-card:hover {
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.08);
  transform: translateY(-2px);
}

.tool-card svg {
  width: 48px;
  height: 48px;
}

.tool-card__name {
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.01em;
}


/* ── カテゴリーフィルター ───────────────────────────────────── */

.filter-bar {
  position: sticky;
  top: 64px;
  z-index: 50;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--color-border);
  padding: 14px 0;
}

.filter-bar__btns {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.filter-btn {
  padding: 8px 20px;
  border-radius: var(--radius);
  border: none;
  cursor: pointer;
  font-size: 0.875rem;
  font-weight: 500;
  font-family: var(--font);
  background: var(--color-muted-bg);
  color: var(--color-fg);
  transition: background 0.2s, color 0.2s;
}

.filter-btn:hover {
  background: #e5e7eb;
}

.filter-btn.is-active {
  background: var(--color-primary);
  color: #fff;
}


/* ── カテゴリーセクション ───────────────────────────────────── */

.category-section {
  margin-bottom: 64px;
}

.category-section:last-child {
  margin-bottom: 0;
}

.category-title {
  font-size: 1.4rem;
  font-weight: 700;
  padding-left: 16px;
  border-left: 4px solid var(--color-primary);
  margin-bottom: 32px;
}



/* ── プロフィール ───────────────────────────────────────────── */

.profile-avatar {
  width: 100%;
  aspect-ratio: 1;
  border-radius: var(--radius-lg);
  margin-bottom: 24px;
  background-image: url(img/00.jpg);
  background-size: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  background-repeat: no-repeat;
}

.profile-initials {
  width: 128px;
  height: 128px;
  border-radius: 50%;
  background: rgba(29, 78, 216, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--color-primary);
}

.about_txst span {
  font-weight: 600;
  display: block;
}

/* ── 作品詳細ページ ─────────────────────────────────────────── */

.detail-header {
  padding: 128px 0 48px;
}

.detail-back-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--color-muted-fg);
  font-size: 0.9rem;
  font-family: var(--font);
  background: none;
  border: none;
  cursor: pointer;
  margin-bottom: 32px;
  transition: color 0.2s;
}

.detail-back-btn:hover {
  color: var(--color-fg);
}

.detail-main-img {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  /* aspect-ratio: 16 / 9; */
  background: var(--color-muted-bg);
}

.detail-main-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.detail-main-img .work-card__size {
  bottom: 12px;
  right: 12px;
  font-size: 0.82rem;
  padding: 4px 10px;
}

.detail-content-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 48px;
}

.work-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 24px;
}

.work-tag {
  padding: 6px 16px;
  background: var(--color-muted-bg);
  border-radius: var(--radius);
  font-size: 0.875rem;
  border: 1px solid var(--color-border);
}

.detail-info-box {
  background: #f3f4f6b2;
  border-radius: var(--radius);
  padding: 28px;
  display: flex;
  flex-direction: column;
  gap: 24px;
  border: 1px solid var(--color-border);
}

.detail-info-item h4 {
  margin-bottom: 4px;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-muted-fg);
}

.detail-info-item p {
  font-size: 0.95rem;
}

.detail-nav-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
}

div#js-page-content {
  background-color: #f8f8f8;
}

/* ── お問い合わせ ───────────────────────────────────────────── */

.contact-section {
  text-align: center;
}

.contact-link {
  display: inline-block;
  padding: 16px 48px;
  background: var(--color-primary);
  color: #fff;
  border-radius: var(--radius);
  font-size: 1.05rem;
  font-weight: 500;
  transition: opacity 0.2s;
}

.contact-link:hover {
  opacity: 0.88;
}


/* ── ユーティリティ ─────────────────────────────────────────── */

.text-muted {
  color: var(--color-muted-fg);
}

.text-center {
  text-align: center;
}

.border-top {
  border-top: 1px solid var(--color-border);
}

.mb-2 {
  margin-bottom: 8px;
}

.mb-3 {
  margin-bottom: 12px;
}

.mb-4 {
  margin-bottom: 16px;
}

.mb-6 {
  margin-bottom: 24px;
}

.mb-8 {
  margin-bottom: 32px;
}

.mb-12 {
  margin-bottom: 48px;
}

.mt-6 {
  margin-top: 24px;
}

.flex-gap {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.flex-social {
  display: flex;
  gap: 16px;
}

.stack {
  display: flex;
  flex-direction: column;
  gap: 12px;
}


/* ── レスポンシブ対応 ───────────────────────────────────────── */

@media (max-width: 1024px) {
  .grid-2 {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .work-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .grid-5 {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 768px) {
  section {
    padding: 60px 0;
  }

  .nav__links {
    display: none;
  }

  .nav__menu-btn {
    display: block;
  }

  .grid-3 {
    grid-template-columns: 1fr;
  }

  .work-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .grid-5 {
    grid-template-columns: repeat(2, 1fr);
  }

  .detail-content-grid {
    grid-template-columns: 1fr;
  }

  .detail-nav-grid {
    grid-template-columns: 1fr;
  }

  .section--hero {
    padding-top: 100px;
  }
}

@media (max-width: 480px) {
  .work-grid {
    grid-template-columns: 1fr;
  }

  .services-grid {
    grid-template-columns: 1fr;
  }

  .grid-5 {
    grid-template-columns: repeat(2, 1fr);
  }

  .section-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }
}