/* ============================================================
   軸線図研（JIKUSEN）— mechanical drafting studio portfolio
   モバイルファースト / 統一仕様準拠
   ============================================================ */

/* ============ Design Tokens ============ */
:root {
  --color-primary: #0e2a44;        /* 深紺 */
  --color-primary-dk: #08182a;
  --color-accent: #d44e1c;         /* 朱 */
  --color-accent-dk: #b03f15;
  --color-base: #f6f4f0;           /* 生成り紙色 */
  --color-surface: #ffffff;
  --color-text: #1a1f2a;
  --color-text-sub: #5a6473;
  --color-border: rgba(14, 42, 68, 0.12);
  --color-border-strong: rgba(14, 42, 68, 0.28);

  --color-base-rgb: 246, 244, 240;
  --color-primary-rgb: 14, 42, 68;

  --header-h: 64px;
  --container: 1180px;

  --font-jp: "Noto Sans JP", "Hiragino Sans", "Yu Gothic", sans-serif;
  --font-display: "Zen Kaku Gothic New", "Noto Sans JP", sans-serif;
  --font-en: "IBM Plex Sans", "Helvetica Neue", sans-serif;

  /* portfolio-notice 用 */
  --pn-bg: var(--color-primary);
  --pn-fg: var(--color-base);
  --pn-fg-rgb: 246, 244, 240;
  --pn-accent: var(--color-accent);
  --pn-font: var(--font-jp);
}

/* ============ Reset ============ */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-jp);
  color: var(--color-text);
  background: var(--color-base);
  line-height: 1.85;
  letter-spacing: 0.02em;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; }
ul, ol { list-style: none; padding: 0; margin: 0; }
figure { margin: 0; }

/* ============================================================
   ポートフォリオ告知バナー（統一仕様）
   ============================================================ */
.portfolio-notice {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 300;
  background: var(--pn-bg);
  color: var(--pn-fg);
  padding: 0.55rem 1rem;
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-align: center;
  line-height: 1.6;
  border-bottom: 1px solid var(--pn-accent);
  font-family: var(--pn-font);
}
.portfolio-notice strong {
  color: var(--pn-accent);
  letter-spacing: 0.2em;
  margin-right: 0.6rem;
  font-weight: 600;
}
.portfolio-notice .pn-close {
  background: transparent;
  border: 1px solid rgba(var(--pn-fg-rgb), 0.4);
  color: var(--pn-fg);
  font-size: 0.7rem;
  padding: 2px 8px;
  margin-left: 0.8rem;
  cursor: pointer;
  letter-spacing: 0.1em;
  transition: all 0.3s;
  font-family: inherit;
}
.portfolio-notice .pn-close:hover {
  background: var(--pn-accent);
  border-color: var(--pn-accent);
  color: var(--pn-bg);
}
body.notice-visible { padding-top: 44px; }
body.notice-visible .site-header { top: 44px; }
@media (max-width: 720px) {
  .portfolio-notice { font-size: 0.7rem; padding: 0.5rem 0.8rem; }
  body.notice-visible { padding-top: 64px; }
  body.notice-visible .site-header { top: 64px; }
}

/* ============================================================
   ヘッダー
   ============================================================ */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--header-h);
  z-index: 200;
  border-bottom: 1px solid var(--color-border);
  transition: top 0.3s;
}
.site-header::before {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(var(--color-base-rgb), 0.94);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  z-index: -1;
}
.header-inner {
  height: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

/* ロゴ */
.logo {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  color: var(--color-primary);
  font-weight: 700;
  letter-spacing: 0.06em;
}
.logo-mark { display: inline-flex; color: var(--color-accent); }
.logo-text { display: flex; flex-direction: column; line-height: 1.1; }
.logo-jp { font-family: var(--font-display); font-size: 1.05rem; }
.logo-en {
  font-family: var(--font-en);
  font-size: 0.65rem;
  letter-spacing: 0.28em;
  color: var(--color-text-sub);
}

/* PC ナビ */
.pc-nav { display: none; }
.pc-nav ul { display: flex; gap: 1.5rem; }
.pc-nav a {
  font-size: 0.85rem;
  color: var(--color-text);
  letter-spacing: 0.08em;
  position: relative;
  padding: 0.3rem 0;
  transition: color 0.2s;
}
.pc-nav a::after {
  content: "";
  position: absolute;
  left: 0; bottom: -2px;
  width: 0; height: 1px;
  background: var(--color-accent);
  transition: width 0.3s;
}
.pc-nav a:hover { color: var(--color-primary); }
.pc-nav a:hover::after { width: 100%; }

/* ヘッダーCTA（PC時のみ表示） */
.header-cta {
  display: none;
  background: var(--color-primary);
  color: var(--color-base);
  padding: 0.6rem 1.2rem;
  font-size: 0.82rem;
  letter-spacing: 0.1em;
  border: 1px solid var(--color-primary);
  transition: all 0.25s;
  font-weight: 500;
}
.header-cta:hover {
  background: var(--color-accent);
  border-color: var(--color-accent);
}

@media (min-width: 1024px) {
  .pc-nav { display: flex; }
  .header-cta { display: inline-flex; align-items: center; }
}

/* ============================================================
   ハンバーガー（drawer より上に）
   ============================================================ */
.hamburger {
  width: 44px; height: 44px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  position: relative;
  z-index: 220;
  background: transparent;
  border: 0;
  padding: 0;
}
.hamburger span {
  display: block;
  width: 24px; height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: transform 0.35s cubic-bezier(.4,0,.2,1), opacity 0.35s;
  transform-origin: center;
}
.hamburger[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.hamburger[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.hamburger[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}
@media (min-width: 1024px) {
  .hamburger { display: none; }
}

/* ============================================================
   ドロワー（パターンB: 右ドロワー）
   ============================================================ */
.drawer-mask {
  position: fixed;
  inset: 0;
  background: rgba(8, 24, 42, 0.55);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.35s;
  z-index: 210;
}
.drawer-mask.is-open {
  opacity: 1;
  pointer-events: auto;
}
.drawer {
  position: fixed;
  top: 0; right: 0;
  width: 80vw;
  max-width: 360px;
  height: 100dvh;
  background: var(--color-base);
  transform: translateX(100%);
  transition: transform 0.4s cubic-bezier(.4,0,.2,1);
  z-index: 215;
  padding: calc(var(--header-h) + 1rem) 1.5rem 2rem;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  box-shadow: -8px 0 32px rgba(8, 24, 42, 0);
  border-left: 1px solid var(--color-border);
}
.drawer.is-open {
  transform: translateX(0);
  box-shadow: -8px 0 32px rgba(8, 24, 42, 0.18);
}
/* 告知バナー併設時の押し下げ */
body.notice-visible .drawer {
  padding-top: calc(var(--header-h) + 44px + 1rem);
}
@media (max-width: 720px) {
  body.notice-visible .drawer {
    padding-top: calc(var(--header-h) + 64px + 1rem);
  }
}

.drawer-list {
  display: flex;
  flex-direction: column;
  gap: 0;
  margin-bottom: 2rem;
}
.drawer-list a {
  display: block;
  padding: 1rem 0.4rem;
  border-bottom: 1px solid var(--color-border);
  font-weight: 500;
  font-size: 1rem;
  color: var(--color-text);
  letter-spacing: 0.04em;
  transition: color 0.2s, padding 0.25s;
}
.drawer-list a:hover {
  color: var(--color-accent);
  padding-left: 0.7rem;
}
.drawer-cta {
  margin-top: 1rem;
  background: var(--color-primary) !important;
  color: var(--color-base) !important;
  text-align: center;
  padding: 1rem !important;
  border-bottom: 0 !important;
  font-weight: 700 !important;
  letter-spacing: 0.16em !important;
  border: 1px solid var(--color-primary) !important;
}
.drawer-cta:hover {
  background: var(--color-accent) !important;
  border-color: var(--color-accent) !important;
  color: var(--color-base) !important;
  padding-left: 1rem !important;
}
.drawer-footer {
  margin-top: auto;
  padding-top: 1.5rem;
  border-top: 1px solid var(--color-border);
}
.drawer-tel {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  font-size: 0.85rem;
}
.drawer-tel-label {
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  color: var(--color-text-sub);
}
.drawer-tel a {
  font-family: var(--font-en);
  font-size: 1.4rem;
  color: var(--color-primary);
  font-weight: 600;
  letter-spacing: 0.05em;
}
.drawer-tel small {
  font-size: 0.68rem;
  color: var(--color-text-sub);
}

/* ============================================================
   汎用：ボタン / セクション
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.95rem 1.6rem;
  font-size: 0.88rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  border: 1px solid transparent;
  border-radius: 2px;
  transition: all 0.25s;
  cursor: pointer;
  font-family: inherit;
}
.btn-primary {
  background: var(--color-accent);
  color: var(--color-base);
  border-color: var(--color-accent);
}
.btn-primary:hover {
  background: var(--color-accent-dk);
  border-color: var(--color-accent-dk);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(212, 78, 28, 0.3);
}
.btn-ghost {
  background: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
}
.btn-ghost:hover {
  background: var(--color-primary);
  color: var(--color-base);
}
.btn-block { width: 100%; }

.section {
  padding: 4rem 0;
  position: relative;
}
.section-inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 1.25rem;
}
.section-head {
  margin-bottom: 2.5rem;
}
.section-tag {
  font-family: var(--font-en);
  font-size: 0.75rem;
  letter-spacing: 0.28em;
  color: var(--color-accent);
  margin-bottom: 0.6rem;
  text-transform: uppercase;
  display: flex;
  align-items: center;
  gap: 0.7rem;
}
.section-tag::before {
  content: "";
  width: 28px;
  height: 1px;
  background: var(--color-accent);
}
.section-title {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 4vw, 2rem);
  font-weight: 700;
  margin: 0 0 0.6rem;
  letter-spacing: 0.04em;
  line-height: 1.4;
}
.section-desc {
  color: var(--color-text-sub);
  font-size: 0.95rem;
  margin: 0;
  max-width: 50rem;
}

@media (min-width: 768px) {
  .section { padding: 6rem 0; }
  .section-head { margin-bottom: 3.5rem; }
}

/* ============================================================
   Hero
   ============================================================ */
.hero {
  --notice-h: 44px;
  position: relative;
  min-height: calc(100dvh - var(--notice-h));
  padding: calc(var(--header-h) + 1.5rem) 0 2.5rem;
  overflow: hidden;
  background: var(--color-base);
  display: flex;
  align-items: center;
}
@media (max-width: 720px) {
  .hero { --notice-h: 64px; }
}
.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, rgba(14, 42, 68, 0.05) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(14, 42, 68, 0.05) 1px, transparent 1px);
  background-size: 32px 32px;
  pointer-events: none;
  mask-image: linear-gradient(to bottom, transparent 0%, black 20%, black 80%, transparent 100%);
}
.hero-inner {
  position: relative;
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 1.25rem;
}
.hero-eyebrow {
  font-family: var(--font-en);
  font-size: 0.72rem;
  letter-spacing: 0.32em;
  color: var(--color-text-sub);
  display: flex;
  align-items: center;
  gap: 0.7rem;
  margin: 0 0 1.5rem;
  text-transform: uppercase;
}
.eb-line {
  display: block;
  width: 36px;
  height: 1px;
  background: var(--color-accent);
}
.hero-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.875rem, 6vw, 2.875rem);
  line-height: 1.35;
  letter-spacing: 0.04em;
  margin: 0 0 1.5rem;
  color: var(--color-primary);
}
.hero-lead {
  color: var(--color-text-sub);
  font-size: 0.95rem;
  line-height: 1.95;
  margin: 0 0 2rem;
  max-width: 36rem;
}
.hero-cta {
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
  margin-bottom: 2.5rem;
}
.hero-meta {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.5rem;
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  padding: 1.2rem 0;
  margin-bottom: 0;
}
.hero-meta li {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  text-align: center;
  border-right: 1px solid var(--color-border);
}
.hero-meta li:last-child { border-right: 0; }
.m-num {
  font-family: var(--font-en);
  font-size: 1.3rem;
  font-weight: 600;
  color: var(--color-primary);
  letter-spacing: 0.04em;
}
.m-num em {
  font-style: normal;
  color: var(--color-accent);
  margin: 0 0.05em;
}
.m-lab {
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  color: var(--color-text-sub);
}
.hero-image {
  position: relative;
  margin: 2rem 0 0;
  border: 1px solid var(--color-border-strong);
}
.hero-image::before {
  content: "";
  position: absolute;
  top: -8px; left: -8px;
  width: 28px; height: 28px;
  border-top: 1px solid var(--color-accent);
  border-left: 1px solid var(--color-accent);
  pointer-events: none;
}
.hero-image::after {
  content: "";
  position: absolute;
  bottom: -8px; right: -8px;
  width: 28px; height: 28px;
  border-bottom: 1px solid var(--color-accent);
  border-right: 1px solid var(--color-accent);
  pointer-events: none;
}
.hero-image img {
  width: 100%;
  aspect-ratio: 16/10;
  object-fit: cover;
  filter: contrast(1.05) saturate(0.85);
  max-height: 38vh;
}
.hero-caption {
  position: absolute;
  bottom: -1px; right: -1px;
  background: var(--color-primary);
  color: var(--color-base);
  font-family: var(--font-en);
  font-size: 0.65rem;
  letter-spacing: 0.2em;
  padding: 0.4rem 0.8rem;
}

@media (min-width: 640px) {
  .hero { padding: calc(var(--header-h) + 1rem) 0 1rem; }
  .hero-cta { flex-direction: row; gap: 1rem; }
  .hero-inner {
    display: grid;
    grid-template-columns: 1.15fr 1fr;
    column-gap: 1.5rem;
    align-items: center;
  }
  .hero-text {
    grid-column: 1 / 2;
    min-width: 0;
  }
  .hero-image {
    margin: 0;
    grid-column: 2 / 3;
    align-self: center;
    width: 100%;
    min-width: 0;
  }
  .hero-image img {
    aspect-ratio: 4 / 5;
    width: 100%;
    height: auto;
    max-height: 78dvh;
    object-fit: cover;
  }
  .hero-meta { max-width: 28rem; }
}
@media (min-width: 900px) {
  .hero-inner {
    grid-template-columns: 1.05fr 1fr;
    column-gap: 2.5rem;
  }
}
@media (min-width: 1200px) {
  .hero-inner { column-gap: 4rem; }
}

/* ============================================================
   About
   ============================================================ */
.section-about { background: var(--color-surface); }
.about-grid {
  display: grid;
  gap: 2rem;
}
.about-lead {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 500;
  color: var(--color-primary);
  line-height: 1.7;
  margin: 0 0 1.2rem;
  padding-left: 1rem;
  border-left: 2px solid var(--color-accent);
}
.about-text p {
  color: var(--color-text-sub);
  margin: 0 0 1rem;
  font-size: 0.95rem;
}
.about-spec {
  margin: 0;
  border-top: 1px solid var(--color-border);
}
.about-spec > div {
  display: grid;
  grid-template-columns: 6rem 1fr;
  padding: 0.9rem 0;
  border-bottom: 1px solid var(--color-border);
  align-items: baseline;
}
.about-spec dt {
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--color-accent);
  letter-spacing: 0.12em;
  font-family: var(--font-en);
  text-transform: uppercase;
}
.about-spec dd {
  margin: 0;
  font-size: 0.9rem;
  color: var(--color-text);
}
.about-spec dd small {
  display: inline-block;
  font-size: 0.72rem;
  color: var(--color-text-sub);
  margin-left: 0.3rem;
}
@media (min-width: 1024px) {
  .about-grid {
    grid-template-columns: 1.3fr 1fr;
    gap: 4rem;
  }
}

/* ============================================================
   Service
   ============================================================ */
.section-service { background: var(--color-base); }
.service-grid {
  display: grid;
  gap: 1.25rem;
}
.service-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  padding: 1.8rem 1.5rem;
  position: relative;
  transition: border-color 0.3s, transform 0.3s;
}
.service-card::before {
  content: "";
  position: absolute;
  top: 0; left: 0;
  width: 0; height: 2px;
  background: var(--color-accent);
  transition: width 0.4s;
}
.service-card:hover {
  border-color: var(--color-border-strong);
  transform: translateY(-4px);
}
.service-card:hover::before { width: 100%; }
.service-no {
  font-family: var(--font-en);
  font-size: 0.7rem;
  letter-spacing: 0.28em;
  color: var(--color-accent);
  margin: 0 0 0.8rem;
}
.service-card h3 {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 700;
  margin: 0 0 1rem;
  color: var(--color-primary);
  letter-spacing: 0.03em;
}
.service-card p {
  color: var(--color-text-sub);
  font-size: 0.88rem;
  line-height: 1.85;
  margin: 0 0 1.2rem;
}
.service-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}
.service-list li {
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  background: var(--color-base);
  color: var(--color-primary);
  padding: 0.3rem 0.7rem;
  border: 1px solid var(--color-border);
}
.service-formats {
  margin-top: 2.5rem;
  padding: 1.5rem;
  background: var(--color-primary);
  color: var(--color-base);
  border: 1px solid var(--color-primary);
  display: flex;
  flex-direction: column;
  gap: 1rem;
  align-items: flex-start;
}
.formats-label {
  margin: 0;
  font-family: var(--font-en);
  font-size: 0.72rem;
  letter-spacing: 0.28em;
  color: var(--color-accent);
  display: flex;
  align-items: center;
  gap: 0.7rem;
}
.formats-label::before {
  content: "";
  width: 28px;
  height: 1px;
  background: var(--color-accent);
}
.formats-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1rem;
}
.formats-list li {
  font-family: var(--font-en);
  font-size: 0.85rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  padding: 0.3rem 0.8rem;
  border: 1px solid rgba(var(--pn-fg-rgb), 0.3);
}

@media (min-width: 768px) {
  .service-grid { grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }
  .service-formats {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 2rem;
  }
}

/* ============================================================
   Works
   ============================================================ */
.section-works { background: var(--color-surface); }
.works-grid {
  display: grid;
  gap: 1.5rem;
}
.work-card {
  display: flex;
  flex-direction: column;
  background: var(--color-base);
  border: 1px solid var(--color-border);
  overflow: hidden;
  transition: transform 0.35s, box-shadow 0.35s;
}
.work-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 32px rgba(14, 42, 68, 0.08);
}
.work-img {
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background: var(--color-primary);
}
.work-img img {
  width: 100%; height: 100%;
  object-fit: cover;
  filter: saturate(0.85) contrast(1.05);
  transition: transform 0.6s, filter 0.4s;
}
.work-card:hover .work-img img {
  transform: scale(1.04);
  filter: saturate(1) contrast(1.1);
}
.work-body { padding: 1.3rem 1.4rem 1.6rem; }
.work-cat {
  font-family: var(--font-en);
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  color: var(--color-accent);
  margin: 0 0 0.5rem;
  font-weight: 500;
}
.work-title {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 500;
  margin: 0 0 0.6rem;
  letter-spacing: 0.03em;
  color: var(--color-primary);
}
.work-desc {
  font-size: 0.85rem;
  color: var(--color-text-sub);
  margin: 0;
  line-height: 1.8;
}
@media (min-width: 768px) {
  .works-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 1024px) {
  .works-grid { grid-template-columns: repeat(3, 1fr); }
}

/* ============================================================
   Price
   ============================================================ */
.section-price { background: var(--color-base); }
.price-grid {
  display: grid;
  gap: 1.25rem;
  margin-bottom: 1.5rem;
}
.price-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  padding: 1.8rem 1.6rem;
  transition: all 0.3s;
}
.price-card-featured {
  background: var(--color-primary);
  color: var(--color-base);
  border-color: var(--color-primary);
  position: relative;
}
.price-card-featured::after {
  content: "RECOMMEND";
  position: absolute;
  top: -1px; right: -1px;
  background: var(--color-accent);
  color: var(--color-base);
  font-family: var(--font-en);
  font-size: 0.62rem;
  letter-spacing: 0.2em;
  padding: 0.3rem 0.7rem;
  font-weight: 600;
}
.price-cat {
  font-family: var(--font-en);
  font-size: 0.7rem;
  letter-spacing: 0.28em;
  margin: 0 0 0.8rem;
  color: var(--color-accent);
  font-weight: 500;
}
.price-card h3 {
  font-family: var(--font-display);
  font-size: 1.1rem;
  margin: 0 0 1rem;
  letter-spacing: 0.04em;
  color: inherit;
}
.price-card-featured h3 { color: var(--color-base); }
.price-amount {
  font-family: var(--font-en);
  font-size: 2rem;
  font-weight: 600;
  margin: 0 0 1.4rem;
  letter-spacing: 0.02em;
  color: var(--color-primary);
}
.price-card-featured .price-amount { color: var(--color-base); }
.price-amount .yen { font-size: 1rem; margin-right: 0.15em; }
.price-amount .unit {
  font-size: 0.85rem;
  font-weight: 400;
  margin-left: 0.3em;
  color: var(--color-text-sub);
}
.price-card-featured .price-amount .unit { color: rgba(var(--pn-fg-rgb), 0.7); }
.price-list {
  border-top: 1px solid var(--color-border);
  padding-top: 1rem;
}
.price-card-featured .price-list { border-top-color: rgba(var(--pn-fg-rgb), 0.2); }
.price-list li {
  font-size: 0.85rem;
  padding: 0.5rem 0;
  border-bottom: 1px dashed var(--color-border);
  position: relative;
  padding-left: 1.2rem;
}
.price-card-featured .price-list li {
  border-bottom-color: rgba(var(--pn-fg-rgb), 0.15);
}
.price-list li::before {
  content: "—";
  position: absolute;
  left: 0;
  color: var(--color-accent);
}
.price-list li:last-child { border-bottom: 0; }
.price-note {
  font-size: 0.8rem;
  color: var(--color-text-sub);
  margin: 1.5rem 0 0;
  padding-top: 1rem;
  border-top: 1px solid var(--color-border);
}
@media (min-width: 768px) {
  .price-grid { grid-template-columns: repeat(3, 1fr); }
}

/* ============================================================
   Flow
   ============================================================ */
.section-flow { background: var(--color-surface); }
.flow-list {
  display: grid;
  gap: 1.25rem;
  counter-reset: flow;
}
.flow-item {
  background: var(--color-base);
  padding: 1.5rem 1.5rem 1.6rem;
  border: 1px solid var(--color-border);
  border-left: 2px solid var(--color-accent);
  position: relative;
}
.flow-no {
  font-family: var(--font-en);
  font-size: 0.7rem;
  letter-spacing: 0.28em;
  color: var(--color-accent);
  margin: 0 0 0.6rem;
  font-weight: 500;
}
.flow-item h3 {
  font-family: var(--font-display);
  font-size: 1.1rem;
  margin: 0 0 0.6rem;
  letter-spacing: 0.04em;
  color: var(--color-primary);
}
.flow-item p {
  color: var(--color-text-sub);
  font-size: 0.88rem;
  margin: 0;
  line-height: 1.8;
}
@media (min-width: 768px) {
  .flow-list { grid-template-columns: repeat(2, 1fr); gap: 1.5rem; }
}
@media (min-width: 1024px) {
  .flow-list { grid-template-columns: repeat(4, 1fr); }
}

/* ============================================================
   FAQ
   ============================================================ */
.section-faq { background: var(--color-base); }
.faq-list {
  border-top: 1px solid var(--color-border);
  max-width: 60rem;
  margin: 0 auto;
}
.faq-item {
  border-bottom: 1px solid var(--color-border);
}
.faq-item summary {
  list-style: none;
  cursor: pointer;
  padding: 1.2rem 2.5rem 1.2rem 2rem;
  font-weight: 500;
  font-size: 0.95rem;
  position: relative;
  font-family: var(--font-display);
  letter-spacing: 0.03em;
  color: var(--color-primary);
  transition: color 0.2s;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::before {
  content: "Q";
  position: absolute;
  left: 0;
  font-family: var(--font-en);
  color: var(--color-accent);
  font-weight: 600;
  font-size: 1rem;
}
.faq-item summary::after {
  content: "";
  position: absolute;
  right: 0.5rem;
  top: 50%;
  width: 12px;
  height: 12px;
  border-right: 1px solid var(--color-text-sub);
  border-bottom: 1px solid var(--color-text-sub);
  transform: translateY(-70%) rotate(45deg);
  transition: transform 0.3s;
}
.faq-item[open] summary::after {
  transform: translateY(-30%) rotate(-135deg);
}
.faq-item[open] summary { color: var(--color-accent); }
.faq-item p {
  padding: 0 2rem 1.4rem;
  color: var(--color-text-sub);
  font-size: 0.9rem;
  margin: 0;
  line-height: 1.95;
}

/* ============================================================
   Contact
   ============================================================ */
.section-contact {
  background: var(--color-primary);
  color: var(--color-base);
}
.section-contact .section-title { color: var(--color-base); }
.section-contact .section-tag { color: var(--color-accent); }
.section-contact .section-tag::before { background: var(--color-accent); }
.section-contact .section-desc { color: rgba(var(--pn-fg-rgb), 0.7); }
.contact-grid {
  display: grid;
  gap: 2.5rem;
}
.contact-info {
  margin: 0;
  display: grid;
  gap: 1.3rem;
  align-content: start;
}
.contact-info > div {
  border-left: 1px solid var(--color-accent);
  padding-left: 1rem;
}
.contact-info dt {
  font-family: var(--font-en);
  font-size: 0.7rem;
  letter-spacing: 0.28em;
  color: var(--color-accent);
  margin-bottom: 0.3rem;
  font-weight: 500;
  text-transform: uppercase;
}
.contact-info dd {
  margin: 0;
  font-size: 0.95rem;
  color: var(--color-base);
  line-height: 1.6;
}
.contact-info dd a {
  color: var(--color-base);
  border-bottom: 1px solid var(--color-accent);
  padding-bottom: 1px;
  transition: color 0.2s;
}
.contact-info dd a:hover { color: var(--color-accent); }
.contact-info dd small {
  font-size: 0.72rem;
  color: rgba(var(--pn-fg-rgb), 0.55);
}

.contact-form {
  background: var(--color-base);
  color: var(--color-text);
  padding: 1.8rem 1.5rem;
  border: 1px solid var(--color-accent);
}
.form-row {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  margin-bottom: 1.2rem;
}
.form-row label {
  font-size: 0.82rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  color: var(--color-primary);
}
.req {
  display: inline-block;
  font-family: var(--font-en);
  font-size: 0.62rem;
  letter-spacing: 0.16em;
  background: var(--color-accent);
  color: var(--color-base);
  padding: 0.05rem 0.5rem;
  margin-left: 0.4rem;
  vertical-align: middle;
}
.form-row input,
.form-row textarea {
  width: 100%;
  border: 1px solid var(--color-border-strong);
  background: var(--color-surface);
  padding: 0.7rem 0.8rem;
  font-family: inherit;
  font-size: 0.95rem;
  color: var(--color-text);
  border-radius: 0;
  transition: border-color 0.2s;
}
.form-row input:focus,
.form-row textarea:focus {
  outline: none;
  border-color: var(--color-accent);
}
.form-row textarea {
  resize: vertical;
  min-height: 8rem;
}
.disclaimer {
  font-size: 0.78rem;
  color: var(--color-text-sub);
  background: rgba(14, 42, 68, 0.05);
  border-left: 2px solid var(--color-accent);
  padding: 0.7rem 0.9rem;
  margin-bottom: 1rem;
  line-height: 1.7;
}
@media (min-width: 1024px) {
  .contact-grid {
    grid-template-columns: 1fr 1.4fr;
    gap: 4rem;
    align-items: start;
  }
  .contact-form { padding: 2.5rem; }
}

/* ============================================================
   Footer
   ============================================================ */
.site-footer {
  background: var(--color-primary-dk);
  color: var(--color-base);
  padding: 3rem 0 2rem;
}
.footer-inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 1.25rem;
  display: grid;
  gap: 2rem;
}
.footer-brand {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  color: var(--color-accent);
}
.footer-jp {
  font-family: var(--font-display);
  font-size: 1.1rem;
  margin: 0;
  color: var(--color-base);
  font-weight: 700;
  letter-spacing: 0.06em;
}
.footer-en {
  font-family: var(--font-en);
  font-size: 0.7rem;
  letter-spacing: 0.28em;
  color: rgba(var(--pn-fg-rgb), 0.55);
  margin: 0.2rem 0 0;
}
.footer-nav ul {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.5rem;
}
.footer-nav a {
  font-size: 0.82rem;
  color: rgba(var(--pn-fg-rgb), 0.7);
  letter-spacing: 0.06em;
  transition: color 0.2s;
}
.footer-nav a:hover { color: var(--color-accent); }
.footer-copy {
  font-size: 0.72rem;
  color: rgba(var(--pn-fg-rgb), 0.5);
  line-height: 1.85;
  margin: 0;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(var(--pn-fg-rgb), 0.15);
  letter-spacing: 0.04em;
}
@media (min-width: 768px) {
  .footer-inner {
    grid-template-columns: auto 1fr;
    align-items: center;
  }
  .footer-copy { grid-column: 1 / -1; }
}

/* ============================================================
   Reveal animation / scroll states
   ============================================================ */
.site-header.is-scrolled {
  border-bottom-color: rgba(14, 42, 68, 0.18);
  box-shadow: 0 4px 18px rgba(14, 42, 68, 0.06);
}
.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}
.hero.reveal { transition-delay: 0s; }

/* ============================================================
   Reduced motion
   ============================================================ */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
  html { scroll-behavior: auto; }
}