/*
 * ふたり研究室 — style-user.css
 * トップページ + 記事本文デザイン 完成版
 */

:root {
  --fp-bg: #FAFAF8;
  --fp-bg-alt: #F2EFE8;
  --fp-surface: #FFFFFF;
  --fp-border: #E4DED5;
  --fp-text: #1C1C1C;
  --fp-text-muted: #7B7269;
  --fp-accent: #C4996A;
  --fp-accent-dark: #A67C50;
  --fp-accent-light: #F5EDE0;
  --fp-font: "Noto Sans JP", -apple-system, BlinkMacSystemFont, "Helvetica Neue", sans-serif;
  --fp-max-w: 1160px;
}

body,
header,
nav,
.site-title,
.entry-content,
.entry-content *,
.fp-main,
.fp-main *,
.futari-article,
.futari-article * {
  font-family: var(--fp-font) !important;
}

body.home {
  background: var(--fp-bg);
  color: var(--fp-text);
}

.fp-container {
  width: 100%;
  max-width: var(--fp-max-w);
  margin: 0 auto;
  padding: 0 18px;
}

.fp-section {
  padding: 88px 0;
}

.fp-section--white {
  background: var(--fp-surface);
}

.fp-section--alt {
  background: var(--fp-bg-alt);
}

/* Hero */

.fp-hero {
  position: relative !important;
  min-height: 76vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--fp-bg);
  text-align: center;
  padding: 80px 18px;
  overflow: hidden !important;
}

.fp-hero__bg {
  position: absolute !important;
  inset: 0 !important;
  width: 100% !important;
  height: 100% !important;
  object-fit: cover !important;
  opacity: 0.28 !important;
  z-index: 0 !important;
}

.fp-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(250,250,248,0.58);
  z-index: 1;
  pointer-events: none;
}

.fp-hero__inner {
  position: relative !important;
  z-index: 2 !important;
  max-width: 760px;
  margin: 0 auto;
}

.fp-hero__eyebrow,
.fp-hero__title-sub,
.fp-hero__scroll {
  font-family: "Cormorant Garamond", Georgia, serif !important;
}

.fp-hero__eyebrow {
  font-size: 12px;
  letter-spacing: 0.32em;
  color: var(--fp-accent);
  margin-bottom: 32px;
  font-weight: 500;
}

.fp-hero__title {
  font-family: "Noto Serif JP", "Yu Mincho", serif !important;
  font-size: clamp(40px, 6vw, 68px);
  line-height: 1.35;
  letter-spacing: 0.12em;
  font-weight: 400;
  color: var(--fp-text);
  margin: 0 0 24px;
}

.fp-hero__title-sub {
  display: block;
  margin-top: 24px;
  font-size: 15px;
  letter-spacing: 0.24em;
  color: var(--fp-text-muted);
  font-weight: 400;
}

.fp-hero__line {
  width: 42px;
  height: 1px;
  background: var(--fp-accent);
  margin: 36px auto;
}

.fp-hero__desc {
  font-size: 14px;
  line-height: 2;
  color: var(--fp-text-muted);
  font-weight: 400;
}

.fp-hero__scroll {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  margin-top: 80px;
  font-size: 11px;
  letter-spacing: 0.3em;
  color: var(--fp-text-muted);
  text-decoration: none;
}

/* Section Title */

.fp-section-title {
  text-align: center;
  margin-bottom: 48px;
}

.fp-section-title__en {
  display: block;
  font-size: 13px;
  letter-spacing: 0.28em;
  color: var(--fp-accent);
  margin-bottom: 10px;
  font-weight: 500;
}

.fp-section-title__jp {
  display: block;
  font-size: 26px;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--fp-text);
}

/* Grid */

.fp-pickup__grid,
.fp-latest__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}

@media (min-width: 768px) {
  .fp-pickup__grid,
  .fp-latest__grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* Card */

.fp-card {
  display: block;
  background: var(--fp-surface);
  border: 1px solid var(--fp-border);
  text-decoration: none;
  overflow: hidden;
  transition: 0.25s ease;
}

.fp-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 18px 42px rgba(0,0,0,0.06);
  text-decoration: none;
}

.fp-card__thumb {
  aspect-ratio: 16 / 10;
  background: var(--fp-bg-alt);
  overflow: hidden;
}

.fp-card__thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.fp-card__body {
  padding: 24px;
}

.fp-card__cat {
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--fp-accent);
}

.fp-card__title {
  margin-top: 10px;
  font-size: 16px;
  line-height: 1.8;
  font-weight: 600;
  color: var(--fp-text);
}

.fp-card__meta {
  margin-top: 18px;
  padding-top: 14px;
  border-top: 1px solid var(--fp-border);
}

.fp-card__date {
  font-size: 12px;
  color: var(--fp-text-muted);
}

/* Category */

.fp-categories__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}

@media (min-width: 768px) {
  .fp-categories__grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.fp-cat-item {
  padding: 24px 12px;
  background: var(--fp-surface);
  border: 1px solid var(--fp-border);
  text-align: center;
  text-decoration: none;
  color: var(--fp-text);
}

.fp-cat-item:hover {
  background: var(--fp-accent-light);
  border-color: var(--fp-accent);
  text-decoration: none;
}

.fp-cat-item__icon {
  display: block;
  font-size: 22px;
  margin-bottom: 8px;
}

.fp-cat-item__name {
  display: block;
  font-size: 13px;
  font-weight: 600;
}

.fp-cat-item__count {
  display: block;
  margin-top: 6px;
  font-size: 11px;
  color: var(--fp-text-muted);
}

/* About / CTA */

.fp-about__inner {
  display: grid;
  gap: 48px;
  max-width: 920px;
  margin: 0 auto;
}

@media (min-width: 768px) {
  .fp-about__inner {
    grid-template-columns: 1fr 1fr;
    align-items: center;
  }
}

.fp-about__image {
  aspect-ratio: 4 / 3;
  background: var(--fp-bg-alt);
  overflow: hidden;
}

.fp-about__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.fp-about__label,
.fp-cta__label {
  font-size: 13px;
  letter-spacing: 0.24em;
  color: var(--fp-accent);
  font-weight: 600;
  margin-bottom: 18px;
}

.fp-about__title,
.fp-cta__title {
  font-size: clamp(24px, 4vw, 34px);
  line-height: 1.7;
  font-weight: 500;
  color: var(--fp-text);
}

.fp-about__text,
.fp-cta__desc {
  font-size: 15px;
  line-height: 2;
  color: var(--fp-text-muted);
}

.fp-about__link,
.fp-cta__btn,
.fp-more-btn {
  display: inline-block;
  width: fit-content;
  margin-top: 24px;
  padding: 14px 36px;
  background: var(--fp-accent);
  color: #fff;
  font-size: 13px;
  letter-spacing: 0.12em;
  text-decoration: none;
}

.fp-about__link:hover,
.fp-cta__btn:hover,
.fp-more-btn:hover {
  background: var(--fp-accent-dark);
  text-decoration: none;
}

.fp-cta__inner {
  max-width: 640px;
  margin: 0 auto;
  text-align: center;
}

/* Article */

.futari-article {
  max-width: 760px;
  margin: 0 auto;
  padding: 48px 18px;
  color: var(--fp-text);
  font-size: 16px;
  line-height: 2.05;
  letter-spacing: 0.03em;
}

.futari-article p {
  margin: 0 0 1.8em;
}

.futari-article h2 {
  margin: 3.6em 0 1.3em;
  padding-left: 18px;
  border-left: 4px solid var(--fp-accent);
  font-size: clamp(26px, 4vw, 36px);
  line-height: 1.55;
  font-weight: 600;
  color: var(--fp-text);
}

.futari-article h3 {
  margin: 2.8em 0 1em;
  padding-bottom: 0.5em;
  border-bottom: 1px solid var(--fp-border);
  font-size: clamp(21px, 3vw, 26px);
  line-height: 1.6;
  font-weight: 600;
  color: var(--fp-text);
}

.futari-article ul,
.futari-article ol {
  margin: 0 0 2em;
  padding-left: 1.3em;
}

.futari-article li {
  margin-bottom: 0.7em;
}

.futari-article strong {
  font-weight: 700;
  background: linear-gradient(transparent 65%, var(--fp-accent-light) 65%);
}

.futari-article table {
  width: 100%;
  margin: 2.4em 0;
  border-collapse: collapse;
  font-size: 14px;
  line-height: 1.8;
  background: var(--fp-surface);
}

.futari-article th,
.futari-article td {
  padding: 16px 18px;
  border: 1px solid var(--fp-border);
  vertical-align: top;
}

.futari-article th {
  background: var(--fp-bg-alt);
  font-weight: 700;
  color: var(--fp-text);
}

.futari-article td {
  color: var(--fp-text-muted);
}

.futari-point {
  margin: 2.6em 0;
  padding: 28px;
  background: var(--fp-accent-light);
  border-left: 4px solid var(--fp-accent);
  color: var(--fp-text);
}

.futari-point__title {
  display: block;
  margin-bottom: 12px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--fp-accent-dark);
}

.futari-note {
  margin: 2.6em 0;
  padding: 28px;
  background: var(--fp-bg-alt);
  border: 1px solid var(--fp-border);
  color: var(--fp-text-muted);
}

.futari-faq {
  margin: 3em 0;
}

.futari-faq-item {
  padding: 24px 0;
  border-bottom: 1px solid var(--fp-border);
}

.futari-faq-q {
  font-weight: 700;
  margin-bottom: 10px;
}

.futari-faq-a {
  color: var(--fp-text-muted);
}

.futari-cta {
  margin: 4em 0;
  padding: 42px 24px;
  background: var(--fp-text);
  color: #fff;
  text-align: center;
}

.futari-cta h2,
.futari-cta h3 {
  margin: 0 0 16px;
  padding: 0;
  border: none;
  color: #fff;
}

.futari-cta p {
  color: #D8D2CA;
}

.futari-cta a {
  display: inline-block;
  margin-top: 12px;
  padding: 14px 36px;
  background: var(--fp-accent);
  color: #fff;
  text-decoration: none;
}

/* Mobile */

@media (max-width: 640px) {
  .fp-hero {
    min-height: 72vh;
    padding: 64px 18px;
  }

  .fp-hero__title {
    font-size: 38px;
  }

  .futari-article {
    padding: 32px 16px;
    font-size: 15px;
  }

  .futari-article table,
  .futari-article tbody,
  .futari-article tr,
  .futari-article th,
  .futari-article td {
    display: block;
    width: 100%;
  }

  .futari-article tr {
    margin-bottom: 16px;
    border: 1px solid var(--fp-border);
  }

  .futari-article th,
  .futari-article td {
    border: none;
    border-bottom: 1px solid var(--fp-border);
  }

  .futari-article td:last-child {
    border-bottom: none;
  }
}