/* ========================================
   40代からのPC副業ノート - メインスタイル
   ======================================== */

/* --- CSS Variables --- */
:root {
  --color-ivory: #FAF7F2;
  --color-beige: #F0E6DA;
  --color-warm-white: #FFFCF8;
  --color-pink: #C9A89A;
  --color-pink-dark: #B8928A;
  --color-brown: #5C4A3D;
  --color-brown-light: #8B7B6E;
  --color-brown-dark: #3D3229;
  --color-sage: #A8B5A0;
  --color-border: #E8DDD2;

  --font-serif: 'Noto Serif JP', serif;
  --font-sans: 'Noto Sans JP', sans-serif;

  --max-width: 1120px;
  --header-height: 64px;
  --radius: 12px;
  --radius-pill: 999px;
  --shadow: 0 4px 20px rgba(92, 74, 61, 0.08);
  --shadow-hover: 0 8px 30px rgba(92, 74, 61, 0.12);
  --transition: 0.2s ease;
}

/* --- Reset & Base --- */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-sans);
  color: var(--color-brown);
  background-color: var(--color-ivory);
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: var(--color-pink-dark);
  text-decoration: none;
  transition: color var(--transition);
}

a:hover {
  color: var(--color-brown);
}

ul, ol {
  list-style: none;
}

/* --- Skip Link --- */
.skip-link {
  position: absolute;
  top: -100%;
  left: 16px;
  background: var(--color-brown);
  color: #fff;
  padding: 8px 16px;
  border-radius: var(--radius);
  z-index: 9999;
}

.skip-link:focus {
  top: 16px;
}

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

/* --- Header --- */
.header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: var(--color-warm-white);
  border-bottom: 1px solid var(--color-border);
  height: var(--header-height);
}

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

.header__logo {
  font-family: var(--font-serif);
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--color-brown);
  line-height: 1.3;
}

.header__logo span {
  display: block;
  font-size: 0.7rem;
  font-family: var(--font-sans);
  font-weight: 400;
  color: var(--color-brown-light);
}

.header__nav {
  display: flex;
  gap: 28px;
}

.header__nav a {
  font-size: 0.875rem;
  color: var(--color-brown);
  font-weight: 500;
}

.header__nav a:hover {
  color: var(--color-pink);
}

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.hamburger__line {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-brown);
  transition: var(--transition);
}

.hamburger.is-active .hamburger__line:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.hamburger.is-active .hamburger__line:nth-child(2) {
  opacity: 0;
}

.hamburger.is-active .hamburger__line:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* Mobile Nav */
.mobile-nav {
  display: none;
  position: fixed;
  top: var(--header-height);
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--color-warm-white);
  z-index: 999;
  padding: 32px 24px;
  overflow-y: auto;
}

.mobile-nav.is-open {
  display: block;
}

.mobile-nav a {
  display: block;
  padding: 16px 0;
  font-size: 1rem;
  color: var(--color-brown);
  border-bottom: 1px solid var(--color-border);
  font-weight: 500;
}

/* --- Buttons --- */
.btn {
  display: inline-block;
  padding: 14px 32px;
  border-radius: var(--radius-pill);
  font-size: 1rem;
  font-weight: 500;
  text-align: center;
  transition: background var(--transition), color var(--transition), transform var(--transition);
  cursor: pointer;
  border: 2px solid transparent;
}

.btn--primary {
  background: var(--color-pink);
  color: #fff;
}

.btn--primary:hover {
  background: var(--color-pink-dark);
  color: #fff;
}

.btn--secondary {
  background: transparent;
  color: var(--color-brown);
  border-color: var(--color-brown);
}

.btn--secondary:hover {
  background: var(--color-brown);
  color: #fff;
}

.btn--white {
  background: #fff;
  color: var(--color-pink-dark);
}

.btn--white:hover {
  background: var(--color-beige);
  color: var(--color-brown);
}

.btn--small {
  padding: 8px 20px;
  font-size: 0.875rem;
}

/* --- Section --- */
.section {
  padding: 80px 0;
}

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

.section__title {
  font-family: var(--font-serif);
  font-size: 1.75rem;
  font-weight: 600;
  text-align: center;
  margin-bottom: 16px;
  color: var(--color-brown);
}

.section__subtitle {
  text-align: center;
  color: var(--color-brown-light);
  margin-bottom: 48px;
  font-size: 1rem;
}

/* --- Hero --- */
.hero {
  padding: 80px 0 100px;
  background: linear-gradient(135deg, var(--color-ivory) 0%, var(--color-beige) 100%);
}

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

.hero__title {
  font-family: var(--font-serif);
  font-size: 2.25rem;
  font-weight: 600;
  line-height: 1.5;
  margin-bottom: 24px;
  color: var(--color-brown);
}

.hero__text {
  font-size: 1.0625rem;
  color: var(--color-brown-light);
  margin-bottom: 32px;
  line-height: 1.9;
}

.hero__image {
  aspect-ratio: 4/3;
  background: linear-gradient(145deg, var(--color-beige), var(--color-pink));
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-brown-light);
  font-size: 0.875rem;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* --- Concerns --- */
.concerns__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-bottom: 40px;
}

.concern-card {
  background: var(--color-warm-white);
  padding: 24px;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  text-align: center;
  font-size: 0.9375rem;
}

.concern-card__icon {
  font-size: 1.5rem;
  margin-bottom: 12px;
}

.concerns__closing {
  text-align: center;
  font-size: 1.0625rem;
  color: var(--color-brown);
  max-width: 640px;
  margin: 0 auto;
  line-height: 1.9;
}

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

.step-card {
  background: var(--color-warm-white);
  padding: 32px 24px;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  text-align: center;
  position: relative;
}

.step-card__number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  background: var(--color-pink);
  color: #fff;
  border-radius: 50%;
  font-family: var(--font-serif);
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: 16px;
}

.step-card__title {
  font-family: var(--font-serif);
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: 12px;
}

.step-card__text {
  font-size: 0.9375rem;
  color: var(--color-brown-light);
  margin-bottom: 20px;
}

/* --- Cards Grid --- */
.card-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.card {
  background: var(--color-warm-white);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
  transition: transform var(--transition), box-shadow var(--transition);
}

.card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-hover);
}

.card__image {
  aspect-ratio: 16/9;
  background: linear-gradient(135deg, var(--color-beige), var(--color-sage));
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-brown-light);
  font-size: 0.8125rem;
  width: 100%;
  object-fit: cover;
}

.card__body {
  padding: 24px;
}

.card__title {
  font-family: var(--font-serif);
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.card__text {
  font-size: 0.875rem;
  color: var(--color-brown-light);
  margin-bottom: 16px;
  line-height: 1.7;
}

/* --- Service Cards --- */
.service-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.service-card {
  background: var(--color-warm-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 28px 24px;
  position: relative;
}

.service-card__badge {
  position: absolute;
  top: 12px;
  right: 12px;
  background: var(--color-brown-light);
  color: #fff;
  font-size: 0.6875rem;
  padding: 2px 8px;
  border-radius: 4px;
}

.service-card__title {
  font-family: var(--font-serif);
  font-size: 1.0625rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.service-card__text {
  font-size: 0.875rem;
  color: var(--color-brown-light);
  margin-bottom: 16px;
}

.pr-notice {
  background: var(--color-warm-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 16px 20px;
  font-size: 0.8125rem;
  color: var(--color-brown-light);
  margin-bottom: 32px;
  line-height: 1.7;
}

/* --- Article Cards --- */
.article-card__meta {
  display: flex;
  gap: 12px;
  align-items: center;
  margin-bottom: 8px;
}

.tag {
  display: inline-block;
  background: var(--color-sage);
  color: #fff;
  font-size: 0.75rem;
  padding: 2px 10px;
  border-radius: var(--radius-pill);
}

.article-card__date {
  font-size: 0.8125rem;
  color: var(--color-brown-light);
}

/* --- CTA Section --- */
.cta-section {
  background: var(--color-pink);
  color: #fff;
  text-align: center;
  padding: 80px 24px;
}

.cta-section__title {
  font-family: var(--font-serif);
  font-size: 1.75rem;
  font-weight: 600;
  margin-bottom: 16px;
}

.cta-section__text {
  font-size: 1rem;
  margin-bottom: 32px;
  opacity: 0.95;
  max-width: 560px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.9;
}

/* --- Profile --- */
.profile {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 40px;
  align-items: start;
}

.profile__photo {
  width: 200px;
  height: 200px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-beige), var(--color-pink));
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-brown-light);
  font-size: 0.8125rem;
  object-fit: cover;
}

.profile__name {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 16px;
}

.profile__text {
  font-size: 0.9375rem;
  color: var(--color-brown-light);
  line-height: 1.9;
  margin-bottom: 16px;
}

/* --- Footer --- */
.footer {
  background: var(--color-brown-dark);
  color: rgba(255, 255, 255, 0.8);
  padding: 48px 0 24px;
}

.footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}

.footer__brand {
  font-family: var(--font-serif);
  font-size: 1.125rem;
  color: #fff;
  margin-bottom: 12px;
}

.footer__desc {
  font-size: 0.8125rem;
  line-height: 1.7;
}

.footer__heading {
  font-size: 0.875rem;
  color: #fff;
  margin-bottom: 16px;
  font-weight: 500;
}

.footer__links a {
  display: block;
  font-size: 0.8125rem;
  color: rgba(255, 255, 255, 0.7);
  padding: 4px 0;
}

.footer__links a:hover {
  color: #fff;
}

.footer__bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.15);
  padding-top: 24px;
  text-align: center;
  font-size: 0.75rem;
  color: rgba(255, 255, 255, 0.5);
}

/* --- Breadcrumb --- */
.breadcrumb {
  padding: 16px 0;
  font-size: 0.8125rem;
  color: var(--color-brown-light);
}

.breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.breadcrumb li::after {
  content: '›';
  margin-left: 8px;
  color: var(--color-brown-light);
}

.breadcrumb li:last-child::after {
  content: none;
}

.breadcrumb a {
  color: var(--color-brown-light);
}

.breadcrumb li:last-child {
  color: var(--color-brown);
}

/* --- Page Header --- */
.page-header {
  background: var(--color-beige);
  padding: 48px 0;
  text-align: center;
}

.page-header__title {
  font-family: var(--font-serif);
  font-size: 2rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.page-header__desc {
  color: var(--color-brown-light);
  font-size: 1rem;
}

.page-header__inner {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 40px;
  flex-wrap: wrap;
}

.page-header__text {
  text-align: left;
  max-width: 480px;
}

.page-header__image {
  width: 180px;
  height: 180px;
  border-radius: var(--radius);
  object-fit: cover;
  flex-shrink: 0;
}

@media (max-width: 640px) {
  .page-header__inner {
    flex-direction: column-reverse;
    text-align: center;
  }
  .page-header__text {
    text-align: center;
  }
  .page-header__image {
    width: 140px;
    height: 140px;
  }
}

/* --- Article Layout --- */
.article-layout {
  display: grid;
  grid-template-columns: 1fr 280px;
  gap: 48px;
  padding: 48px 0 80px;
}

.article__header {
  margin-bottom: 32px;
}

.article__title {
  font-family: var(--font-serif);
  font-size: 1.75rem;
  font-weight: 600;
  line-height: 1.5;
  margin-bottom: 16px;
}

.article__meta {
  display: flex;
  gap: 16px;
  align-items: center;
  font-size: 0.875rem;
  color: var(--color-brown-light);
  margin-bottom: 24px;
}

.article__eyecatch {
  aspect-ratio: 16/9;
  background: linear-gradient(135deg, var(--color-beige), var(--color-sage));
  border-radius: var(--radius);
  margin-bottom: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-brown-light);
  width: 100%;
  object-fit: cover;
}

.article__content h2 {
  font-family: var(--font-serif);
  font-size: 1.375rem;
  font-weight: 600;
  margin: 48px 0 16px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--color-beige);
}

.article__content h3 {
  font-size: 1.125rem;
  font-weight: 500;
  margin: 32px 0 12px;
}

.article__content p {
  margin-bottom: 16px;
  line-height: 1.9;
}

.article__content ul,
.article__content ol {
  margin: 16px 0;
  padding-left: 24px;
}

.article__content ul {
  list-style: disc;
}

.article__content ol {
  list-style: decimal;
}

.article__content li {
  margin-bottom: 8px;
  line-height: 1.8;
}

.article__content table {
  width: 100%;
  border-collapse: collapse;
  margin: 24px 0;
  font-size: 0.9375rem;
}

.article__content th,
.article__content td {
  border: 1px solid var(--color-border);
  padding: 12px 16px;
  text-align: left;
}

.article__content th {
  background: var(--color-beige);
  font-weight: 500;
}

/* Article boxes */
.box-conclusion {
  background: var(--color-beige);
  border-left: 4px solid var(--color-pink);
  padding: 24px;
  border-radius: 0 var(--radius) var(--radius) 0;
  margin-bottom: 32px;
}

.box-conclusion__label {
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--color-pink-dark);
  margin-bottom: 8px;
}

.box-recommend {
  background: var(--color-warm-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 24px;
  margin: 24px 0;
}

.box-recommend__title {
  font-weight: 500;
  margin-bottom: 12px;
}

.box-affiliate {
  background: var(--color-warm-white);
  border: 2px solid var(--color-pink);
  border-radius: var(--radius);
  padding: 28px;
  margin: 32px 0;
  position: relative;
}

.box-affiliate__badge {
  position: absolute;
  top: -10px;
  left: 20px;
  background: var(--color-brown-light);
  color: #fff;
  font-size: 0.6875rem;
  padding: 2px 10px;
  border-radius: 4px;
}

.box-affiliate__title {
  font-family: var(--font-serif);
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: 12px;
  margin-top: 4px;
}

/* Article CTA inline */
.article-cta {
  text-align: center;
  margin: 40px 0;
  padding: 32px;
  background: var(--color-beige);
  border-radius: var(--radius);
}

.article-cta p {
  margin-bottom: 16px;
  font-size: 0.9375rem;
}

/* Related articles */
.related-articles {
  margin-top: 48px;
  padding-top: 48px;
  border-top: 1px solid var(--color-border);
}

.related-articles__title {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 24px;
}

/* --- Sidebar --- */
.sidebar__section {
  margin-bottom: 32px;
}

.sidebar__title {
  font-family: var(--font-serif);
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--color-beige);
}

.sidebar__list a {
  display: block;
  font-size: 0.875rem;
  color: var(--color-brown);
  padding: 8px 0;
  border-bottom: 1px solid var(--color-border);
}

.sidebar__list a:hover {
  color: var(--color-pink);
}

.sidebar-cta {
  background: var(--color-pink);
  color: #fff;
  padding: 24px;
  border-radius: var(--radius);
  text-align: center;
}

.sidebar-cta p {
  font-size: 0.875rem;
  margin-bottom: 16px;
  line-height: 1.7;
}

.sidebar-cta .btn--white {
  width: 100%;
}

/* --- Static Page Content --- */
.page-content {
  padding: 48px 0 80px;
  max-width: 760px;
  margin: 0 auto;
}

.page-content h2 {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  font-weight: 600;
  margin: 40px 0 16px;
}

.page-content p,
.page-content li {
  font-size: 0.9375rem;
  line-height: 1.9;
  color: var(--color-brown-light);
}

.page-content ul {
  list-style: disc;
  padding-left: 24px;
  margin: 16px 0;
}

.page-content li {
  margin-bottom: 8px;
}

/* --- Category List --- */
.category-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  padding: 48px 0 80px;
}

.category-list__item {
  background: var(--color-warm-white);
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: var(--shadow);
}

.category-list__item h2 {
  font-family: var(--font-serif);
  font-size: 1.125rem;
  margin-bottom: 8px;
}

.category-list__item p {
  font-size: 0.875rem;
  color: var(--color-brown-light);
  margin-bottom: 16px;
}

/* --- Responsive --- */
@media (max-width: 1023px) {
  .hero__inner {
    grid-template-columns: 1fr;
  }

  .hero__image {
    order: -1;
    max-height: 280px;
  }

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

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

  .article-layout {
    grid-template-columns: 1fr;
  }

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

@media (max-width: 767px) {
  .section {
    padding: 48px 0;
  }

  .header__nav {
    display: none;
  }

  .hamburger {
    display: flex;
  }

  .hero {
    padding: 48px 0 64px;
  }

  .hero__title {
    font-size: 1.625rem;
  }

  .card-grid,
  .service-grid,
  .steps,
  .concerns__grid {
    grid-template-columns: 1fr;
  }

  .profile {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .profile__photo {
    margin: 0 auto;
  }

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

  .category-list {
    grid-template-columns: 1fr;
  }

  .page-header__title {
    font-size: 1.5rem;
  }

  .article__title {
    font-size: 1.375rem;
  }

  .btn {
    display: block;
    width: 100%;
  }
}