/* ============================================
   さすてな経営会計事務所 リニューアル提案デモ
   Design System
   ============================================ */

:root {
  --color-bg: #FAFAF7;
  --color-bg-warm: #F4F1EA;
  --color-white: #FFFFFF;
  --color-forest: #1F4D3B;
  --color-forest-light: #2D5F4C;
  --color-forest-dark: #0F2E22;
  --color-navy: #1A2B5E;
  --color-navy-light: #2C3E6B;
  --color-text: #1A2724;
  --color-text-muted: #5A6660;
  --color-text-light: #8A9089;
  --color-gold: #C9A961;
  --color-gold-light: #DDC58A;
  --color-border: #E8E5DE;
  --color-border-light: #F0EEE8;

  --font-serif: "Noto Serif JP", "Hiragino Mincho ProN", "Yu Mincho", serif;
  --font-display: "DM Serif Display", "Noto Serif JP", serif;
  --font-sans: "Inter", "Noto Sans JP", "Hiragino Sans", "Yu Gothic", sans-serif;

  --max-width: 1200px;
  --max-width-content: 880px;

  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 16px;
}

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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.8;
  color: var(--color-text);
  background-color: var(--color-bg);
  font-feature-settings: "palt";
}

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

a {
  color: inherit;
  text-decoration: none;
  transition: opacity 0.2s ease, color 0.2s ease;
}

a:hover {
  opacity: 0.7;
}

ul {
  list-style: none;
}

/* ============================================
   Layout
   ============================================ */

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

.container--narrow {
  max-width: var(--max-width-content);
}

.section {
  padding: 120px 0;
}

.section--sm {
  padding: 80px 0;
}

.section--bg-warm {
  background: var(--color-bg-warm);
}

.section--bg-forest {
  background: var(--color-forest);
  color: var(--color-white);
}

@media (max-width: 768px) {
  .section { padding: 80px 0; }
  .section--sm { padding: 56px 0; }
}

/* ============================================
   Typography
   ============================================ */

h1, h2, h3, h4 {
  font-family: var(--font-serif);
  font-weight: 500;
  line-height: 1.4;
  letter-spacing: 0.02em;
  color: var(--color-text);
}

.eyebrow {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 14px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-forest);
  margin-bottom: 16px;
  font-style: italic;
  font-weight: 400;
}

.section-title {
  font-size: clamp(28px, 4vw, 40px);
  margin-bottom: 24px;
  letter-spacing: 0.04em;
}

.section-lead {
  font-size: 17px;
  line-height: 2;
  color: var(--color-text-muted);
  max-width: 720px;
}

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

.section-header--center {
  text-align: center;
  margin-left: auto;
  margin-right: auto;
}

/* ============================================
   Header
   ============================================ */

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: rgba(250, 250, 247, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  z-index: 100;
  border-bottom: 1px solid var(--color-border-light);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 84px;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

.site-logo {
  display: flex;
  align-items: center;
}

.site-logo__img {
  height: 48px;
  width: auto;
  display: block;
}

@media (max-width: 880px) {
  .site-logo__img { height: 36px; }
}

.site-footer__logo {
  display: inline-flex;
  flex-direction: column;
  gap: 4px;
  text-decoration: none;
  color: var(--color-white);
}

.site-footer__logo-name {
  font-family: var(--font-serif);
  font-size: 20px;
  font-weight: 500;
  letter-spacing: 0.06em;
  color: var(--color-white);
}

.site-footer__logo-en {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--color-gold-light);
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 40px;
}

.site-nav__list {
  display: flex;
  gap: 36px;
}

.site-nav__list a {
  font-size: 14px;
  letter-spacing: 0.06em;
  color: var(--color-text);
  position: relative;
}

.site-nav__list a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -6px;
  width: 0;
  height: 1px;
  background: var(--color-forest);
  transition: width 0.3s ease;
}

.site-nav__list a:hover::after {
  width: 100%;
}

.site-nav__cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 24px;
  background: var(--color-forest);
  color: var(--color-white) !important;
  border-radius: 999px;
  font-size: 13px;
  letter-spacing: 0.08em;
  transition: background 0.2s ease;
}

.site-nav__cta:hover {
  background: var(--color-forest-dark);
  opacity: 1 !important;
}

.menu-toggle {
  display: none;
  background: none;
  border: none;
  padding: 8px;
  cursor: pointer;
}

.menu-toggle span {
  display: block;
  width: 24px;
  height: 1.5px;
  background: var(--color-text);
  margin: 6px 0;
  transition: 0.3s;
}

@media (max-width: 880px) {
  .site-nav__list { display: none; }
  .menu-toggle { display: block; }
  .site-nav__cta { display: none; }

  .site-nav.is-open {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: var(--color-white);
    padding: 8px 24px 24px;
    box-shadow: 0 12px 24px rgba(4, 8, 24, 0.06);
    border-top: 1px solid rgba(4, 8, 24, 0.06);
  }
  .site-nav.is-open .site-nav__list {
    display: flex;
    flex-direction: column;
    gap: 0;
  }
  .site-nav.is-open .site-nav__list li { width: 100%; }
  .site-nav.is-open .site-nav__list a {
    display: block;
    padding: 14px 0;
    font-size: 15px;
    border-bottom: 1px solid rgba(4, 8, 24, 0.05);
  }
  .site-nav.is-open .site-nav__cta {
    display: inline-flex;
    margin-top: 16px;
    align-self: flex-start;
  }
  body.is-nav-open { overflow: hidden; }
}

/* ============================================
   Hero
   ============================================ */

.hero {
  position: relative;
  padding: 200px 0 140px;
  overflow: hidden;
  background: var(--color-bg);
}

.hero__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero__bg-img {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  opacity: 0;
  animation: heroFade 22s infinite ease-in-out;
  will-change: opacity, transform;
}

.hero__bg-img:nth-child(1) { animation-delay: 0s; }
.hero__bg-img:nth-child(2) { animation-delay: 11s; }

@keyframes heroFade {
  0%   { opacity: 0; transform: scale(1.08); }
  6%   { opacity: 1; }
  45%  { opacity: 1; transform: scale(1); }
  51%  { opacity: 0; }
  100% { opacity: 0; transform: scale(1.08); }
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  background:
    linear-gradient(90deg,
      rgba(250, 250, 247, 0.94) 0%,
      rgba(250, 250, 247, 0.82) 28%,
      rgba(250, 250, 247, 0.45) 55%,
      rgba(250, 250, 247, 0.08) 82%,
      rgba(250, 250, 247, 0) 100%);
}

.hero__inner { position: relative; z-index: 2; }

@media (prefers-reduced-motion: reduce) {
  .hero__bg-img { animation: none; opacity: 0.45; }
  .hero__bg-img:nth-child(2) { display: none; }
}

@media (max-width: 880px) {
  .hero::before {
    background:
      linear-gradient(180deg,
        rgba(250, 250, 247, 0.93) 0%,
        rgba(250, 250, 247, 0.85) 60%,
        rgba(250, 250, 247, 0.78) 100%);
  }
}

.hero__inner {
  position: relative;
  max-width: 880px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ============================================
   Recognition Strip
   ============================================ */
.award-strip {
  background: var(--color-bg-warm);
  border-top: 1px solid var(--color-border-light);
  border-bottom: 1px solid var(--color-border-light);
  padding: 56px 24px;
}
.award-strip__inner {
  max-width: 720px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: auto 1fr;
  align-items: center;
  gap: 36px;
  text-decoration: none;
  color: inherit;
  padding: 8px 12px;
  border-radius: var(--radius-md);
  transition: background 0.25s ease, transform 0.25s ease;
}
.award-strip__inner:hover,
.award-strip__inner:focus-visible {
  background: rgba(201, 169, 97, 0.08);
  transform: translateY(-1px);
}
.award-strip__inner:focus-visible {
  outline: 2px solid var(--color-gold);
  outline-offset: 2px;
}
.award-strip__link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 12px;
  font-family: var(--font-display);
  font-style: italic;
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--color-gold);
  transition: color 0.25s ease, gap 0.25s ease;
}
.award-strip__inner:hover .award-strip__link,
.award-strip__inner:focus-visible .award-strip__link {
  color: var(--color-forest);
  gap: 9px;
}

/* ============================================
   Map Embed
   ============================================ */
.map-embed {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: 0 6px 24px rgba(15, 46, 34, 0.08);
  border: 1px solid var(--color-border);
}
.map-embed iframe {
  display: block;
  width: 100%;
  height: 420px;
  border: 0;
  filter: saturate(0.92);
}
.map-embed__link {
  position: absolute;
  right: 16px;
  bottom: 16px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 9px 16px;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  border-radius: 999px;
  border: 1px solid var(--color-border);
  font-family: var(--font-display);
  font-style: italic;
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--color-forest);
  text-decoration: none;
  box-shadow: 0 4px 12px rgba(15, 46, 34, 0.1);
  transition: background 0.2s ease, transform 0.2s ease, gap 0.2s ease;
}
.map-embed__link:hover,
.map-embed__link:focus-visible {
  background: var(--color-white);
  transform: translateY(-1px);
  gap: 9px;
}
@media (max-width: 640px) {
  .map-embed iframe { height: 320px; }
  .map-embed__link { right: 12px; bottom: 12px; font-size: 12px; padding: 8px 13px; }
}
.award-strip__seal {
  width: 96px;
  height: 96px;
  flex-shrink: 0;
}
.award-strip__seal svg { display: block; width: 100%; height: 100%; }
.award-strip__eyebrow {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 13px;
  letter-spacing: 0.22em;
  color: var(--color-gold);
  margin-bottom: 10px;
}
.award-strip__title {
  font-family: var(--font-serif);
  font-weight: 500;
  font-size: 22px;
  line-height: 1.5;
  letter-spacing: 0.06em;
  color: var(--color-text);
  margin-bottom: 8px;
}
.award-strip__highlight {
  font-family: var(--font-display);
  font-style: italic;
  color: var(--color-forest);
  font-weight: 400;
  margin: 0 6px;
  font-size: 1.05em;
}
.award-strip__meta {
  font-size: 13px;
  letter-spacing: 0.18em;
  color: var(--color-text-muted);
}
@media (max-width: 640px) {
  .award-strip { padding: 44px 24px; }
  .award-strip__inner {
    grid-template-columns: 1fr;
    text-align: center;
    justify-items: center;
    gap: 20px;
  }
  .award-strip__title { font-size: 19px; }
}

.hero__content {
  position: relative;
  z-index: 2;
}

.hero__eyebrow {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 15px;
  letter-spacing: 0.15em;
  color: var(--color-forest);
  margin-bottom: 24px;
}

.hero__title {
  font-family: var(--font-serif);
  font-size: clamp(40px, 6vw, 68px);
  font-weight: 500;
  line-height: 1.3;
  letter-spacing: 0.04em;
  margin-bottom: 32px;
  color: var(--color-text);
}

.hero__title .accent {
  color: var(--color-forest);
  font-style: normal;
  position: relative;
}

.hero__title .accent::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -4px;
  height: 6px;
  background: var(--color-gold);
  opacity: 0.3;
  z-index: -1;
}

.hero__lead {
  font-size: 17px;
  line-height: 2.1;
  color: var(--color-text-muted);
  margin-bottom: 48px;
  max-width: 480px;
}

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

@media (max-width: 880px) {
  .hero { padding: 140px 0 80px; }
}

/* ============================================
   Buttons
   ============================================ */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 16px 32px;
  font-family: var(--font-sans);
  font-size: 14px;
  letter-spacing: 0.1em;
  border-radius: 999px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.25s ease;
  white-space: nowrap;
}

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

.btn--primary:hover {
  background: var(--color-forest-dark);
  opacity: 1;
  transform: translateY(-1px);
}

.btn--ghost {
  background: transparent;
  color: var(--color-text);
  border-color: var(--color-text);
}

.btn--ghost:hover {
  background: var(--color-text);
  color: var(--color-white);
  opacity: 1;
}

.btn--gold {
  background: var(--color-gold);
  color: var(--color-text);
}

.btn--lg {
  padding: 20px 40px;
  font-size: 15px;
}

/* ============================================
   Vision / Concept Section
   ============================================ */

.concept {
  padding: 140px 0;
  background: var(--color-bg-warm);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.concept::before {
  content: "つづく";
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-family: var(--font-serif);
  font-size: clamp(180px, 30vw, 360px);
  color: var(--color-forest);
  opacity: 0.04;
  letter-spacing: 0.1em;
  font-weight: 500;
  z-index: 0;
  white-space: nowrap;
  pointer-events: none;
}

.concept__inner {
  position: relative;
  z-index: 1;
  max-width: 720px;
  margin: 0 auto;
}

.concept__title {
  font-family: var(--font-serif);
  font-size: clamp(28px, 4vw, 40px);
  margin-bottom: 32px;
  letter-spacing: 0.06em;
}

.concept__text {
  font-size: 17px;
  line-height: 2.2;
  color: var(--color-text-muted);
}

/* ============================================
   Worries (3つの悩み)
   ============================================ */

.worries-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 64px;
}

.worry-card {
  background: var(--color-white);
  padding: 48px 36px;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  transition: all 0.3s ease;
  position: relative;
}

.worry-card:hover {
  transform: translateY(-4px);
  border-color: var(--color-forest);
  box-shadow: 0 12px 40px rgba(31, 77, 59, 0.08);
}

.worry-card__num {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 13px;
  letter-spacing: 0.2em;
  color: var(--color-gold);
  margin-bottom: 24px;
}

.worry-card__title {
  font-size: 22px;
  margin-bottom: 20px;
  color: var(--color-forest);
  letter-spacing: 0.04em;
}

.worry-card__text {
  font-size: 15px;
  line-height: 1.9;
  color: var(--color-text-muted);
}

@media (max-width: 880px) {
  .worries-grid { grid-template-columns: 1fr; gap: 16px; }
  .worry-card { padding: 36px 28px; }
}

/* ============================================
   Strengths (3つの強み)
   ============================================ */

.strengths {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  margin-top: 64px;
}

.strength {
  padding: 48px 32px;
  border-right: 1px solid var(--color-border);
  text-align: center;
  position: relative;
}

.strength:last-child { border-right: none; }

.strength__icon {
  width: 56px;
  height: 56px;
  margin: 0 auto 24px;
  color: var(--color-forest);
}

.strength__title {
  font-size: 20px;
  margin-bottom: 16px;
  letter-spacing: 0.04em;
}

.strength__text {
  font-size: 14px;
  line-height: 1.9;
  color: var(--color-text-muted);
}

@media (max-width: 880px) {
  .strengths { grid-template-columns: 1fr; }
  .strength {
    border-right: none;
    border-bottom: 1px solid var(--color-border);
    padding: 40px 24px;
  }
  .strength:last-child { border-bottom: none; }
}

/* ============================================
   Services
   ============================================ */

.service-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--color-border);
  margin-top: 64px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.service-item {
  background: var(--color-white);
  padding: 40px 32px;
  display: flex;
  align-items: center;
  gap: 16px;
  transition: background 0.2s ease;
}

.service-item:hover {
  background: var(--color-bg-warm);
}

.service-item__num {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 13px;
  color: var(--color-gold);
  letter-spacing: 0.15em;
  flex-shrink: 0;
}

.service-item__title {
  font-family: var(--font-serif);
  font-size: 16px;
  letter-spacing: 0.04em;
}

@media (max-width: 880px) {
  .service-grid { grid-template-columns: 1fr; }
}

/* ============================================
   Pricing
   ============================================ */

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 64px;
}

.price-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 48px 36px;
  text-align: center;
}

.price-card__label {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 13px;
  letter-spacing: 0.2em;
  color: var(--color-gold);
  margin-bottom: 16px;
  text-transform: uppercase;
}

.price-card__title {
  font-size: 22px;
  margin-bottom: 24px;
  color: var(--color-forest);
}

.price-card__price {
  font-family: var(--font-serif);
  font-size: 32px;
  color: var(--color-text);
  margin-bottom: 24px;
  letter-spacing: 0.02em;
}

.price-card__price small {
  font-size: 14px;
  color: var(--color-text-muted);
  margin-left: 4px;
}

.price-card__text {
  font-size: 13px;
  line-height: 1.9;
  color: var(--color-text-muted);
  text-align: left;
}

@media (max-width: 880px) {
  .pricing-grid { grid-template-columns: 1fr; }
}

/* ============================================
   FAQ
   ============================================ */

.faq-list {
  margin-top: 64px;
  max-width: 880px;
  margin-left: auto;
  margin-right: auto;
}

.faq-item {
  border-bottom: 1px solid var(--color-border);
}

.faq-item__q {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 28px 0;
  cursor: pointer;
  font-family: var(--font-serif);
  font-size: 17px;
  letter-spacing: 0.04em;
  color: var(--color-text);
  list-style: none;
  user-select: none;
}

.faq-item__q::-webkit-details-marker { display: none; }

.faq-item__q::before {
  content: "Q";
  font-family: var(--font-display);
  font-style: italic;
  color: var(--color-forest);
  font-size: 18px;
  flex-shrink: 0;
}

.faq-item__q::after {
  content: "+";
  margin-left: auto;
  font-size: 24px;
  color: var(--color-text-muted);
  font-weight: 300;
  transition: transform 0.3s ease;
}

.faq-item[open] .faq-item__q::after {
  transform: rotate(45deg);
}

.faq-item__a {
  padding: 0 0 28px 32px;
  font-size: 15px;
  line-height: 2;
  color: var(--color-text-muted);
}

/* ============================================
   CTA Section
   ============================================ */

.cta-section {
  background: var(--color-forest);
  color: var(--color-white);
  padding: 120px 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: "";
  position: absolute;
  top: -50%;
  left: -10%;
  width: 60%;
  height: 200%;
  background: radial-gradient(circle, rgba(201, 169, 97, 0.15) 0%, transparent 60%);
  pointer-events: none;
}

.cta-section h2 {
  color: var(--color-white);
  font-size: clamp(28px, 4vw, 40px);
  margin-bottom: 24px;
  letter-spacing: 0.06em;
}

.cta-section p {
  color: rgba(255, 255, 255, 0.8);
  font-size: 16px;
  margin-bottom: 48px;
  line-height: 2;
}

.cta-section .btn--primary {
  background: var(--color-gold);
  color: var(--color-text);
  padding: 20px 48px;
  font-size: 15px;
}

.cta-section .btn--primary:hover {
  background: var(--color-gold-light);
}

.cta-channels {
  display: flex;
  justify-content: center;
  gap: 32px;
  margin-top: 48px;
  flex-wrap: wrap;
}

.cta-channel {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: rgba(255, 255, 255, 0.9);
}

.cta-channel__label {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 12px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-gold-light);
}

.cta-channel__value {
  font-family: var(--font-serif);
  font-size: 22px;
  letter-spacing: 0.04em;
}

/* ============================================
   Contact Section
   ============================================ */
.contact-section {
  background: var(--color-forest);
  color: var(--color-white);
  padding: 110px 0 120px;
  position: relative;
  overflow: hidden;
}
.contact-section::before {
  content: "";
  position: absolute;
  top: -40%;
  right: -10%;
  width: 55%;
  height: 180%;
  background: radial-gradient(circle, rgba(201, 169, 97, 0.14) 0%, transparent 60%);
  pointer-events: none;
}
.contact-section .container { position: relative; z-index: 1; }
.contact-section__header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 64px;
}
.contact-section__header h2 {
  color: var(--color-white);
  font-family: var(--font-serif);
  font-weight: 500;
  font-size: clamp(28px, 4vw, 38px);
  letter-spacing: 0.06em;
  margin: 8px 0 20px;
}
.contact-section__lead {
  color: rgba(255, 255, 255, 0.78);
  font-size: 15px;
  line-height: 2;
}

.contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr);
  gap: 48px;
  align-items: start;
}

.contact-form {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-lg);
  padding: 40px;
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
}
.contact-form__row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-bottom: 20px;
}
.contact-field {
  display: block;
  margin-bottom: 20px;
}
.contact-form__row .contact-field { margin-bottom: 0; }
.contact-field__label {
  display: block;
  font-family: var(--font-serif);
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--color-gold-light);
  margin-bottom: 8px;
}
.contact-field__label em {
  color: var(--color-gold);
  font-style: normal;
  margin-left: 4px;
}
.contact-field input,
.contact-field select,
.contact-field textarea {
  width: 100%;
  padding: 13px 16px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: var(--radius-sm);
  color: var(--color-white);
  font-family: var(--font-sans);
  font-size: 14.5px;
  line-height: 1.6;
  transition: border-color 0.2s ease, background 0.2s ease;
}
.contact-field textarea {
  resize: vertical;
  min-height: 140px;
}
.contact-field input::placeholder,
.contact-field textarea::placeholder {
  color: rgba(255, 255, 255, 0.35);
}
.contact-field input:focus,
.contact-field select:focus,
.contact-field textarea:focus {
  outline: none;
  border-color: var(--color-gold);
  background: rgba(255, 255, 255, 0.09);
}
.contact-field select {
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8' fill='none'><path d='M1 1.5L6 6.5L11 1.5' stroke='%23DDC58A' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/></svg>");
  background-repeat: no-repeat;
  background-position: right 16px center;
  padding-right: 40px;
}
.contact-field select option { color: var(--color-text); }

.contact-checkbox {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 13.5px;
  color: rgba(255, 255, 255, 0.78);
  margin: 8px 0 24px;
  cursor: pointer;
}
.contact-checkbox input[type="checkbox"] {
  appearance: none;
  -webkit-appearance: none;
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  margin-top: 2px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: 3px;
  cursor: pointer;
  transition: background 0.2s ease, border-color 0.2s ease;
  position: relative;
}
.contact-checkbox input[type="checkbox"]:checked {
  background: var(--color-gold);
  border-color: var(--color-gold);
}
.contact-checkbox input[type="checkbox"]:checked::after {
  content: "";
  position: absolute;
  left: 5px;
  top: 1px;
  width: 5px;
  height: 10px;
  border: solid var(--color-forest-dark);
  border-width: 0 2px 2px 0;
  transform: rotate(45deg);
}
.contact-checkbox em { color: var(--color-gold); font-style: normal; margin-left: 2px; }
.contact-checkbox a { color: var(--color-gold-light); text-decoration: underline; text-underline-offset: 2px; }

.contact-form__action {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  margin-top: 8px;
}
.contact-form__submit {
  background: var(--color-gold);
  color: var(--color-text);
  padding: 18px 56px;
  font-size: 15px;
  border: none;
  cursor: pointer;
  font-family: var(--font-sans);
  font-weight: 500;
  letter-spacing: 0.1em;
  border-radius: var(--radius-sm);
  transition: background 0.2s ease, transform 0.2s ease;
}
.contact-form__submit:hover:not([disabled]) {
  background: var(--color-gold-light);
  transform: translateY(-1px);
}
.contact-form__submit[disabled] {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}
.contact-form__note {
  font-size: 12px;
  color: rgba(255, 255, 255, 0.55);
  letter-spacing: 0.04em;
}
.contact-form__status {
  margin-top: 24px;
  padding: 16px 20px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  line-height: 1.7;
  display: none;
}
.contact-form__status.is-success {
  display: block;
  background: rgba(201, 169, 97, 0.12);
  border: 1px solid rgba(201, 169, 97, 0.4);
  color: var(--color-gold-light);
}
.contact-form__status.is-error {
  display: block;
  background: rgba(220, 90, 90, 0.12);
  border: 1px solid rgba(220, 90, 90, 0.4);
  color: #F4B5B5;
}

/* Side panel */
.contact-side {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.contact-card {
  padding: 28px 24px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-md);
  text-align: center;
}
.contact-card__label {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 12px;
  letter-spacing: 0.22em;
  color: var(--color-gold-light);
  margin-bottom: 8px;
}
.contact-card__value {
  display: block;
  font-family: var(--font-serif);
  font-size: 22px;
  letter-spacing: 0.04em;
  color: var(--color-white);
  text-decoration: none;
}
.contact-card__value--small { font-size: 18px; }
a.contact-card__value:hover { color: var(--color-gold-light); }
.contact-card__meta {
  margin-top: 8px;
  font-size: 12px;
  color: rgba(255, 255, 255, 0.55);
  line-height: 1.7;
}

@media (max-width: 900px) {
  .contact-grid { grid-template-columns: 1fr; gap: 32px; }
  .contact-form { padding: 28px 22px; }
  .contact-form__row { grid-template-columns: 1fr; gap: 0; }
  .contact-form__row .contact-field { margin-bottom: 20px; }
  .contact-form__row .contact-field:last-child { margin-bottom: 0; }
  .contact-section { padding: 80px 0 90px; }
  .contact-section__header { margin-bottom: 48px; }
}

/* ============================================
   Legal Document (Privacy / Terms)
   ============================================ */
.legal-doc {
  font-size: 14.5px;
  line-height: 2;
  color: var(--color-text);
}
.legal-doc__intro {
  font-family: var(--font-serif);
  font-size: 15.5px;
  line-height: 2.05;
  color: var(--color-text-muted);
  padding: 24px 28px;
  background: var(--color-bg-warm);
  border-left: 3px solid var(--color-gold);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  margin-bottom: 48px;
}
.legal-doc__heading {
  font-family: var(--font-serif);
  font-weight: 500;
  font-size: 20px;
  letter-spacing: 0.06em;
  color: var(--color-forest);
  margin: 40px 0 14px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--color-border);
}
.legal-doc h2.legal-doc__heading:first-of-type { margin-top: 0; }
.legal-doc p { margin-bottom: 14px; }
.legal-doc__list {
  margin: 12px 0 14px 1.5em;
  padding: 0;
}
.legal-doc__list li {
  margin-bottom: 6px;
  list-style: '― ';
  padding-left: 4px;
}
.legal-doc a {
  color: var(--color-forest);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-color: var(--color-gold);
}
.legal-doc a:hover { color: var(--color-gold); }
.legal-doc__date {
  margin-top: 56px;
  padding-top: 24px;
  border-top: 1px solid var(--color-border);
  font-size: 13px;
  color: var(--color-text-light);
  text-align: right;
  font-family: var(--font-display);
  font-style: italic;
  letter-spacing: 0.06em;
}

/* ============================================
   Footer
   ============================================ */

.site-footer {
  background: var(--color-forest-dark);
  color: rgba(255, 255, 255, 0.85);
  padding: 80px 0 32px;
}

.site-footer__top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 56px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}

.site-footer__brand .site-logo__text {
  color: var(--color-white);
}

.site-footer__brand .site-logo__text small {
  color: var(--color-gold-light);
}

.site-footer__address {
  font-size: 13px;
  line-height: 2;
  color: rgba(255, 255, 255, 0.65);
  margin-top: 24px;
}

.site-footer__heading {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 13px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-gold-light);
  margin-bottom: 20px;
}

.site-footer__list li {
  margin-bottom: 10px;
}

.site-footer__list a {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.7);
}

.site-footer__list a:hover {
  color: var(--color-white);
  opacity: 1;
}

.site-footer__bottom {
  margin-top: 32px;
  display: flex;
  justify-content: space-between;
  font-size: 12px;
  color: rgba(255, 255, 255, 0.5);
  letter-spacing: 0.04em;
}

@media (max-width: 880px) {
  .site-footer__top { grid-template-columns: 1fr 1fr; gap: 40px; }
  .site-footer__bottom { flex-direction: column; gap: 8px; }
}

/* ============================================
   Page Hero (sub pages)
   ============================================ */

.page-hero {
  padding: 180px 0 80px;
  background: var(--color-bg-warm);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.page-hero__eyebrow {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 14px;
  letter-spacing: 0.2em;
  color: var(--color-forest);
  text-transform: uppercase;
  margin-bottom: 16px;
}

.page-hero__title {
  font-family: var(--font-serif);
  font-size: clamp(32px, 5vw, 48px);
  letter-spacing: 0.06em;
  color: var(--color-text);
}

/* ============================================
   Office Page
   ============================================ */

.profile {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.profile__image {
  background: linear-gradient(135deg, var(--color-forest) 0%, var(--color-navy) 100%);
  aspect-ratio: 4 / 5;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255, 255, 255, 0.4);
  font-family: var(--font-display);
  font-style: italic;
  position: relative;
  overflow: hidden;
}

.profile__image::after {
  content: "Portrait Photo";
  font-size: 14px;
  letter-spacing: 0.2em;
}

.profile__content h3 {
  font-size: 28px;
  margin-bottom: 24px;
  color: var(--color-forest);
}

.profile__content p {
  font-size: 15px;
  line-height: 2;
  color: var(--color-text-muted);
  margin-bottom: 16px;
}

@media (max-width: 880px) {
  .profile { grid-template-columns: 1fr; gap: 40px; }
}

.info-table {
  width: 100%;
  margin-top: 40px;
  border-top: 1px solid var(--color-border);
}

.info-table tr {
  border-bottom: 1px solid var(--color-border);
}

.info-table th, .info-table td {
  padding: 20px 16px;
  text-align: left;
  vertical-align: top;
  font-size: 15px;
}

.info-table th {
  width: 200px;
  font-family: var(--font-serif);
  font-weight: 500;
  color: var(--color-forest);
  letter-spacing: 0.04em;
}

.info-table td {
  color: var(--color-text-muted);
  line-height: 1.9;
}

@media (max-width: 880px) {
  .info-table th, .info-table td {
    display: block;
    width: 100%;
    padding: 12px 0;
  }
  .info-table th { padding-top: 20px; }
  .info-table tr:not(:last-child) { border-bottom: 1px solid var(--color-border); padding-bottom: 12px; }
}

/* Logo concept */
.logo-concept {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 64px;
  align-items: center;
}

.logo-concept__mark {
  width: 200px;
  height: 200px;
}

.logo-concept__text {
  font-size: 16px;
  line-height: 2;
  color: var(--color-text-muted);
}

.logo-concept__colors {
  display: flex;
  gap: 24px;
  margin-top: 32px;
}

.logo-concept__color {
  display: flex;
  align-items: center;
  gap: 12px;
}

.logo-concept__swatch {
  width: 32px;
  height: 32px;
  border-radius: 50%;
}

.logo-concept__swatch--navy { background: var(--color-navy); }
.logo-concept__swatch--green { background: var(--color-forest); }

.logo-concept__color-text {
  font-size: 13px;
  color: var(--color-text-muted);
}

@media (max-width: 880px) {
  .logo-concept { grid-template-columns: 1fr; gap: 32px; text-align: center; }
  .logo-concept__mark { margin: 0 auto; }
  .logo-concept__colors { justify-content: center; }
}

/* ============================================
   Support-Young Page
   ============================================ */

.feature-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
  margin-bottom: 120px;
}

.feature-block:last-child { margin-bottom: 0; }

.feature-block--reverse .feature-block__visual {
  order: 2;
}

.feature-block__num {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 14px;
  letter-spacing: 0.2em;
  color: var(--color-gold);
  margin-bottom: 16px;
  text-transform: uppercase;
}

.feature-block__title {
  font-size: clamp(24px, 3vw, 32px);
  margin-bottom: 24px;
  letter-spacing: 0.04em;
  color: var(--color-text);
}

.feature-block__text {
  font-size: 16px;
  line-height: 2;
  color: var(--color-text-muted);
}

.feature-block__visual {
  background: var(--color-bg-warm);
  aspect-ratio: 4/3;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

@media (max-width: 880px) {
  .feature-block { grid-template-columns: 1fr; gap: 32px; margin-bottom: 80px; }
  .feature-block--reverse .feature-block__visual { order: 0; }
}

.tools-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: 16px;
  margin-top: 32px;
}

.tool-chip {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: 999px;
  padding: 12px 20px;
  font-size: 13px;
  text-align: center;
  color: var(--color-text-muted);
  letter-spacing: 0.04em;
}

/* freee Badge */
.freee-badge {
  background: var(--color-bg-warm);
  border-radius: var(--radius-md);
  padding: 48px;
  text-align: center;
  margin-top: 64px;
}

.freee-badge__logo {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 32px;
  color: var(--color-forest);
  letter-spacing: 0.04em;
  margin-bottom: 16px;
}

.freee-badge__title {
  font-family: var(--font-serif);
  font-size: 20px;
  letter-spacing: 0.04em;
  margin-bottom: 16px;
}

.freee-badge__text {
  font-size: 15px;
  line-height: 2;
  color: var(--color-text-muted);
  max-width: 600px;
  margin: 0 auto;
}

/* ============================================
   Utility
   ============================================ */

.text-center { text-align: center; }
.mt-32 { margin-top: 32px; }
.mt-48 { margin-top: 48px; }
.mt-64 { margin-top: 64px; }

/* Back to top */
.to-top {
  position: fixed;
  right: 24px;
  bottom: 24px;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--color-forest);
  color: #fff;
  border: none;
  cursor: pointer;
  display: grid;
  place-items: center;
  opacity: 0;
  pointer-events: none;
  transform: translateY(8px);
  transition: opacity 0.3s ease, transform 0.3s ease, background 0.2s ease;
  z-index: 90;
  box-shadow: 0 6px 18px rgba(15, 46, 34, 0.25);
}
.to-top.is-visible {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}
.to-top:hover { background: var(--color-gold); }
.to-top:focus-visible { outline: 2px solid var(--color-gold); outline-offset: 3px; }
@media (max-width: 640px) {
  .to-top { right: 16px; bottom: 16px; width: 44px; height: 44px; }
}