/* ==========================================================================
   小川良武税理士事務所 / Oliver Accounting株式会社 サイト共通スタイル
   Phase 2:骨組み(レイアウトと仮テキスト)段階のCSS。
   細部の調整(スマホ最終確認など)はPhase 4で行う。
   ========================================================================== */

/* ---- リセット ---- */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

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

ul {
  list-style: none;
}

button {
  font: inherit;
  border: none;
  background: none;
  cursor: pointer;
}

/* ---- 配色・変数(指示書5節に基づく3色構成 + ロゴ抽出の青) ---- */
:root {
  --color-base: #ffffff;
  --color-base-alt: #f6f7f9;
  --color-text: #1b2430;
  --color-accent: #0068b7;
  --color-accent-dark: #00508c;
  --color-border: #e3e6ea;
  --color-red: #e7211e;

  --font-jp: "Noto Sans JP", "Hiragino Sans", "Yu Gothic", sans-serif;

  --container-width: 1080px;

  /* ---- Phase 7:濃紺トーン(ヘッダー/ヒーロー/フッター用) ---- */
  --navy-bg: #0d1522;
  --navy-line: #1e2b3d;
  --navy-text: #f0f4f8;
  --navy-text-sub: #9fb0c2;
  --navy-accent: #3f9be0;
  --navy-btn-fill: #2e7fd0;
  --navy-btn-outline-border: #3f6a94;
  --navy-btn-outline-text: #cfe0f0;
  --chip-border: #2a4a6b;
  --chip-text: #7fb6e8;
  --navy-red: #e0705c;

  --font-mono: "IBM Plex Mono", ui-monospace, "SFMono-Regular", Menlo, monospace;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-jp);
  color: var(--color-text);
  background-color: var(--color-base);
  line-height: 1.8;
  font-weight: 400;
}

h1,
h2,
h3,
h4 {
  font-weight: 700;
  line-height: 1.5;
}

.container {
  width: 100%;
  max-width: var(--container-width);
  margin-inline: auto;
  padding-inline: 24px;
}

.container--narrow {
  max-width: 760px;
}

/* ---- 共通セクション余白 ---- */
.section {
  padding-block: 96px;
}

.section--alt {
  background-color: var(--color-base-alt);
}

.section__head {
  text-align: center;
  margin-bottom: 56px;
}

.section__label {
  display: inline-block;
  color: var(--color-accent);
  font-weight: 700;
  letter-spacing: 0.08em;
  font-size: 0.875rem;
  margin-bottom: 8px;
}

.section__title {
  font-size: 1.75rem;
}

.section__title--bar {
  display: inline-flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 8px 12px;
}

.section__title--sub {
  font-size: 1.25rem;
  margin-bottom: 16px;
}

.section__lead {
  margin-top: 16px;
  color: #4a5568;
}

/* ---- ボタン ---- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 32px;
  border-radius: 4px;
  font-weight: 700;
  transition: opacity 0.2s ease;
}

.btn--primary {
  background-color: var(--color-accent);
  color: #ffffff;
}

.btn--primary:hover {
  opacity: 0.85;
}

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

.btn--outline:hover {
  background-color: var(--color-accent);
  color: #ffffff;
}

.btn--sm {
  padding: 10px 24px;
  font-size: 0.875rem;
}

/* ---- ヘッダー ---- */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: rgba(13, 21, 34, 0.96);
  border-bottom: 1px solid var(--navy-line);
}

.header__inner {
  max-width: 1400px;
  margin-inline: auto;
  padding-inline: 24px;
  height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.header__logo img {
  height: 44px;
  width: auto;
}

/* 1400px以上:横1行版ロゴに切り替え(<picture>のsourceと合わせる) */
@media (min-width: 1400px) {
  .header__logo img {
    height: 26px;
  }
}

.header__nav {
  display: flex;
  align-items: center;
  gap: 40px;
  min-width: 0;
}

.header__nav-list {
  display: flex;
  gap: 28px;
  font-size: 0.9375rem;
  font-weight: 500;
}

.header__nav-list a {
  padding-block: 8px;
  border-bottom: 2px solid transparent;
  color: var(--navy-text-sub);
  white-space: nowrap;
}

.header__nav-list a:hover,
.header__nav-list a[aria-current="page"] {
  color: var(--navy-accent);
  border-bottom-color: var(--navy-accent);
}

.header__actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

.header__cta {
  flex-shrink: 0;
}

.header__nav-cta {
  display: none;
}

.header__cta,
.header__nav-cta {
  background-color: var(--navy-btn-fill);
}

.header__toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
}

.header__toggle span {
  width: 24px;
  height: 2px;
  background-color: var(--navy-text);
}

/* ---- フッター ---- */
.footer {
  background-color: var(--navy-bg);
  color: #ffffff;
  padding-block: 56px 32px;
}

.footer__inner {
  max-width: 1400px;
  margin-inline: auto;
  padding-inline: 24px;
}

.footer__top {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 32px;
  padding-bottom: 32px;
  border-bottom: 1px solid var(--navy-line);
}

.footer__area {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--navy-text-sub);
}

.footer__logo img {
  height: 36px;
  width: auto;
}

@media (min-width: 1400px) {
  .footer__logo img {
    height: 24px;
  }
}

.footer__nav {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  font-size: 0.875rem;
}

.footer__contact {
  font-size: 0.875rem;
  line-height: 1.9;
}

.footer__bottom {
  margin-top: 24px;
  font-size: 0.75rem;
  color: rgba(255, 255, 255, 0.6);
}

.btn--white {
  background-color: #ffffff;
  color: var(--color-accent);
}

/* ---- カード共通 ---- */
.card {
  background-color: #ffffff;
  border: 1px solid var(--color-border);
  border-radius: 4px;
  padding: 32px;
}

/* ---- ヒーロー(ファーストビュー) ---- */
.hero {
  padding-block: 120px 96px;
  text-align: center;
  background-color: var(--color-base-alt);
}

.hero__catch {
  font-size: 2.5rem;
}

.hero__sub {
  margin-top: 24px;
  font-size: 1.125rem;
  color: #4a5568;
  max-width: 640px;
  margin-inline: auto;
}

.hero__actions {
  margin-top: 40px;
  display: flex;
  gap: 16px;
  justify-content: center;
}

/* ==========================================================================
   Phase 7:デザイン強化(近未来×端正)部品
   ========================================================================== */

/* ---- 等幅英語ラベル ---- */
.mono-label {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: 0.75rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 12px;
}

.mono-label--navy {
  color: var(--navy-accent);
}

/* ---- ロゴバー・モチーフ(青2本+赤1本) ---- */
.logo-bar {
  display: inline-flex;
  align-items: flex-end;
  gap: 3px;
  height: 16px;
}

.logo-bar span {
  width: 4px;
  height: 100%;
  border-radius: 1px;
  background-color: var(--color-accent);
}

.logo-bar span:nth-child(2) {
  height: 65%;
}

.logo-bar span:nth-child(3) {
  background-color: var(--color-red);
}

.logo-bar--lg {
  height: 30px;
  gap: 5px;
  margin-bottom: 10px;
}

.logo-bar--lg span {
  width: 6px;
}

/* ---- コード風チップ ---- */
.chip-row {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  margin-top: 32px;
}

.chip {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.02em;
  padding: 6px 14px;
  border: 1px solid var(--chip-border);
  border-radius: 4px;
  color: var(--chip-text);
}

/* ---- 濃紺ヒーロー(index.htmlのファーストビュー) ---- */
.hero-navy {
  position: relative;
  overflow: hidden;
  background-color: var(--navy-bg);
  text-align: center;
  padding-block: 148px 104px;
}

.hero-navy__rule {
  position: absolute;
  background-color: var(--navy-line);
}

.hero-navy__rule--h {
  top: 38%;
  left: 0;
  right: 0;
  height: 1px;
}

.hero-navy__rule--v {
  top: 0;
  bottom: 0;
  left: 14%;
  width: 1px;
}

.hero-navy .container {
  position: relative;
}

.hero-navy .logo-bar {
  justify-content: center;
  margin-inline: auto;
}

.hero-navy__catch {
  font-size: 3.5rem;
  color: var(--navy-text);
}

.hero-navy__sub {
  margin-top: 24px;
  font-size: 1.125rem;
  color: var(--navy-text-sub);
  max-width: 640px;
  margin-inline: auto;
}

.hero-navy__actions {
  margin-top: 40px;
  display: flex;
  gap: 16px;
  justify-content: center;
}

/* ---- 小型濃紺ヒーロー(下層ページ冒頭:ページ名+等幅ラベルのみ) ---- */
.hero-navy--sm {
  padding-block: 88px 48px;
}

.hero-navy--sm .hero-navy__catch {
  font-size: 2.25rem;
}

/* ---- 下層ページ:ヒーロー移設分のリード文(白トーン) ---- */
.page-intro {
  max-width: 640px;
  margin: 0 auto 40px;
  text-align: center;
  color: #4a5568;
}

.page-intro p + p {
  margin-top: 8px;
}

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

.btn--navy-fill:hover {
  opacity: 0.85;
}

.btn--navy-outline {
  border: 1px solid var(--navy-btn-outline-border);
  color: var(--navy-btn-outline-text);
}

.btn--navy-outline:hover {
  background-color: var(--navy-btn-outline-border);
}

/* ---- グリッド系レイアウト ---- */
.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
}

.reason-card,
.service-card,
.tool-card {
  text-align: left;
}

.reason-card {
  text-align: center;
  background-color: var(--color-base);
  border: 1px solid var(--color-border);
  border-top: 3px solid var(--color-accent);
  border-radius: 0 0 4px 4px;
  padding: 40px 28px;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.reason-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 18px rgba(13, 21, 34, 0.08);
}

.reason-card__icon {
  display: inline-flex;
  color: var(--color-accent);
  margin-bottom: 16px;
}

.reason-card__icon svg {
  width: 24px;
  height: 24px;
}

.reason-card__number {
  color: var(--color-accent);
  font-weight: 700;
  font-size: 0.875rem;
  letter-spacing: 0.05em;
}

.reason-card__title {
  margin-top: 8px;
  font-size: 1.125rem;
}

.reason-card__text {
  margin-top: 12px;
  color: #4a5568;
  font-size: 0.9375rem;
  text-align: left;
}

.card.service-card {
  border-top: 3px solid var(--color-accent);
  border-radius: 0 0 4px 4px;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.card.service-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 18px rgba(13, 21, 34, 0.08);
}

.service-card__title,
.tool-card__title {
  font-size: 1.0625rem;
  margin-top: 4px;
}

.service-card__text,
.tool-card__text {
  margin-top: 12px;
  color: #4a5568;
  font-size: 0.9375rem;
}

/* ---- バッジ(ステータス表記) ---- */
.badge {
  display: inline-block;
  font-size: 0.75rem;
  padding: 4px 10px;
  border-radius: 999px;
  background-color: var(--color-base-alt);
  color: var(--color-text);
  border: 1px solid var(--color-border);
}

/* ---- CTAバンド ---- */
.cta-band {
  background-color: var(--color-accent);
  color: #ffffff;
  text-align: center;
  padding-block: 72px;
}

.cta-band .section__title {
  color: #ffffff;
}

.cta-band .section__lead {
  color: rgba(255, 255, 255, 0.85);
}

.cta-band__actions {
  margin-top: 32px;
}

/* ---- サービス詳細ページ:主力/その他のメリハリ ---- */
.service-main {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
}

.service-main .card {
  padding: 40px;
}

.card__price-list {
  margin-top: 16px;
  font-size: 0.875rem;
}

.card__price-list li {
  padding-top: 10px;
  border-top: 1px dashed var(--color-border);
}

.card__price-list li:first-child {
  padding-top: 0;
  border-top: none;
}

.card__price-list li + li {
  margin-top: 10px;
}

.service-sub-grid {
  margin-top: 24px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}

.service-sub-grid .card {
  padding: 28px;
  min-height: 200px;
}

.service-footnote {
  margin-top: 24px;
  padding-top: 16px;
  border-top: 1px solid var(--color-border);
  font-size: 0.8125rem;
  color: #4a5568;
}

/* ---- プロフィールページ ----
   写真なし(テキストのみ)がデフォルト。写真が用意でき次第、
   HTML側に .profile-layout--with-photo を追加して2カラム化する */
.profile-layout {
  max-width: 720px;
}

.profile-layout--with-photo {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 48px;
  align-items: start;
  max-width: none;
}

.profile-photo {
  border-radius: 4px;
  overflow: hidden;
  border: 1px solid var(--color-border);
}

.profile-body p + p {
  margin-top: 16px;
}

/* ---- ご相談フローページ ---- */
.flow-steps {
  display: flex;
  flex-direction: column;
}

.flow-step {
  display: flex;
  gap: 24px;
  padding-block: 32px;
  border-bottom: 1px solid var(--color-border);
}

.flow-step:first-child {
  padding-top: 0;
}

.flow-step__num {
  flex-shrink: 0;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background-color: var(--color-accent);
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1.25rem;
}

.flow-step__title {
  font-size: 1.0625rem;
}

.flow-step__text {
  margin-top: 8px;
  color: #4a5568;
  font-size: 0.9375rem;
}

/* ---- お問い合わせページ ---- */
.contact-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
}

.contact-info dt {
  font-weight: 700;
  margin-top: 20px;
}

.contact-info dt:first-child {
  margin-top: 0;
}

.contact-info dd {
  margin-top: 4px;
  color: #4a5568;
}

.contact-note {
  margin-top: 24px;
  padding: 20px;
  background-color: var(--color-base-alt);
  border-radius: 4px;
  font-size: 0.875rem;
  color: #4a5568;
}

.consent-note {
  margin-top: 16px;
  font-size: 0.875rem;
  color: #4a5568;
}

.consent-note a {
  color: var(--color-accent);
  text-decoration: underline;
}

.form-embed {
  margin-top: 16px;
  background-color: #ffffff;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  box-shadow: 0 2px 10px rgba(13, 21, 34, 0.06);
  overflow: hidden;
}

.form-embed__placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 480px;
  padding: 24px;
  text-align: center;
  color: #4a5568;
  font-size: 0.875rem;
  background-color: var(--color-base-alt);
}

.form-embed__iframe {
  display: block;
  width: 100%;
  height: 1700px;
  border: 0;
}

/* ---- プライバシーポリシーページ ---- */
.policy-body h2 {
  font-size: 1.125rem;
  margin-top: 32px;
}

.policy-body h2:first-child {
  margin-top: 0;
}

.policy-body p {
  margin-top: 12px;
  color: #4a5568;
}

.policy-body ul {
  list-style: disc;
  padding-left: 1.5em;
  margin-top: 12px;
  color: #4a5568;
}

.policy-body li + li {
  margin-top: 4px;
}

.policy-body__meta {
  margin-top: 40px;
  padding-top: 24px;
  border-top: 1px solid var(--color-border);
  color: #4a5568;
}

/* ---- レスポンシブ ----
   860px:タブレット/ハンバーガーメニューへの切り替え
   640px:スマホ幅の細部調整(フォント・余白・1カラム化) ---- */
@media (max-width: 860px) {
  .header__logo img {
    height: 34px;
  }

  .header__cta {
    display: none;
  }

  .header__nav {
    position: fixed;
    inset: 76px 0 0 0;
    background-color: var(--navy-bg);
    flex-direction: column;
    align-items: stretch;
    padding: 24px;
    gap: 24px;
    overflow-y: auto;
    transform: translateY(-8px);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s ease, transform 0.2s ease;
  }

  .header__nav.is-open {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
  }

  .header__nav-list {
    flex-direction: column;
    gap: 4px;
  }

  .header__nav-list a {
    display: block;
    padding-block: 12px;
  }

  .header__nav-cta {
    display: inline-flex;
  }

  .header__toggle {
    display: flex;
  }

  .section {
    padding-block: 64px;
  }

  .section__head {
    margin-bottom: 40px;
  }

  .hero {
    padding-block: 76px 56px;
  }

  .hero__catch {
    font-size: 1.875rem;
  }

  .hero__actions {
    flex-direction: column;
    align-items: stretch;
  }

  .hero-navy {
    padding-block: 108px 72px;
  }

  .hero-navy__catch {
    font-size: 2.25rem;
  }

  .hero-navy--sm {
    padding-block: 72px 40px;
  }

  .hero-navy--sm .hero-navy__catch {
    font-size: 1.875rem;
  }

  .hero-navy__actions {
    flex-direction: column;
    align-items: stretch;
  }

  .service-main {
    grid-template-columns: 1fr;
  }

  .footer__top {
    flex-direction: column;
  }
}

@media (max-width: 640px) {
  .container {
    padding-inline: 20px;
  }

  .section {
    padding-block: 48px;
  }

  .hero {
    padding-block: 64px 48px;
  }

  .hero__catch {
    font-size: 1.625rem;
  }

  .hero__sub {
    font-size: 1rem;
  }

  .hero-navy {
    padding-block: 88px 56px;
  }

  .hero-navy__catch {
    font-size: 1.875rem;
  }

  .hero-navy__sub {
    font-size: 1rem;
  }

  .hero-navy--sm {
    padding-block: 56px 32px;
  }

  .hero-navy--sm .hero-navy__catch {
    font-size: 1.5rem;
  }

  .chip-row {
    margin-top: 24px;
  }

  .section__title {
    font-size: 1.5rem;
  }

  .card {
    padding: 24px;
  }

  .reason-card {
    padding: 28px 20px;
  }

  .service-sub-grid .card {
    padding: 24px;
    min-height: 0;
  }

  .service-main .card {
    padding: 28px;
  }

  .grid-3,
  .grid-2,
  .contact-layout {
    grid-template-columns: 1fr;
  }

  .profile-layout--with-photo {
    grid-template-columns: 1fr;
  }

  .profile-photo {
    max-width: 240px;
    margin-inline: auto;
  }

  .flow-step {
    gap: 16px;
    padding-block: 24px;
  }

  .flow-step__num {
    width: 44px;
    height: 44px;
    font-size: 1.0625rem;
  }

  .cta-band {
    padding-block: 56px;
  }

  .cta-band__actions .btn {
    width: 100%;
  }
}