/* ============================================
   Daily Note — style.css
   Reading notes, adult diary, quiet morning cafe
   ============================================ */

/* ----- CSS Variables ----- */
:root {
  --color-bg: #FAF9F6;
  --color-ink: #2A2A2A;
  --color-gray: #BBBBBB;
  --color-green: #34563E;
  --color-rose: #E8C9C0;

  --font-display: 'Spectral', serif;
  --font-body: 'Work Sans', sans-serif;
  --font-jp: 'Zen Kaku Gothic New', sans-serif;

  --max-width: 1120px;
  --gap: 40px;
  --radius: 3px;
  --border: 1px solid rgba(42, 42, 42, 0.1);

  --transition: 0.25s ease;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-body);
  font-weight: 400;
  color: var(--color-ink);
  background-color: var(--color-bg);
  line-height: 1.75;
}

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

ul {
  list-style: none;
}

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

/* ----- Typography ----- */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 500;
  line-height: 1.35;
}

p {
  font-family: var(--font-jp);
  font-weight: 400;
}

/* ============================================
   Header
   ============================================ */
.header {
  border-bottom: var(--border);
  background-color: var(--color-bg);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header__inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 20px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.header__logo {
  display: inline-block;
}

.header__logo-text {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--color-ink);
}

.header__nav-list {
  display: flex;
  gap: 32px;
}

.header__nav-link {
  font-family: var(--font-body);
  font-size: 0.875rem;
  font-weight: 400;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-gray);
  transition: color var(--transition);
}

.header__nav-link:hover,
.header__nav-link--active {
  color: var(--color-ink);
}

/* ============================================
   Hero
   ============================================ */
.hero {
  border-bottom: var(--border);
  padding: 48px 0;
  text-align: center;
}

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

.hero__title {
  font-family: var(--font-jp);
  font-size: 1.5rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  color: var(--color-ink);
  margin-bottom: 12px;
}

.hero__subtitle {
  font-family: var(--font-jp);
  font-size: 0.875rem;
  font-weight: 400;
  line-height: 1.9;
  color: var(--color-gray);
}

/* ============================================
   Main Layout (2-column)
   ============================================ */
.main {
  padding: 56px 0 80px;
}

.main__inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: var(--gap);
  align-items: start;
}

/* ============================================
   Article Cards
   ============================================ */
.articles {
  display: flex;
  flex-direction: column;
  gap: 40px;
}

.card {
  border-bottom: var(--border);
  padding-bottom: 40px;
}

.card:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.card__link {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 28px;
  align-items: start;
  transition: opacity var(--transition);
}

.card__link:hover {
  opacity: 0.85;
}

.card__link:hover .card__title {
  color: var(--color-green);
}

.card__image-wrapper {
  overflow: hidden;
  border-radius: var(--radius);
  aspect-ratio: 4 / 3;
}

.card__image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.card__link:hover .card__image {
  transform: scale(1.03);
}

.card__body {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding-top: 4px;
}

.card__date {
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 300;
  color: var(--color-gray);
  letter-spacing: 0.08em;
}

.card__category {
  display: inline-block;
  width: fit-content;
  font-family: var(--font-jp);
  font-size: 0.6875rem;
  font-weight: 500;
  padding: 2px 10px;
  border-radius: 2px;
  letter-spacing: 0.04em;
}

.card__category--reading {
  background-color: rgba(52, 86, 62, 0.1);
  color: var(--color-green);
}

.card__category--travel {
  background-color: rgba(52, 86, 62, 0.08);
  color: var(--color-green);
}

.card__category--cooking {
  background-color: rgba(232, 201, 192, 0.4);
  color: #8B5E52;
}

.card__category--music {
  background-color: rgba(42, 42, 42, 0.06);
  color: var(--color-ink);
}

.card__category--life {
  background-color: rgba(232, 201, 192, 0.3);
  color: #8B5E52;
}

.card__title {
  font-family: var(--font-jp);
  font-size: 1.125rem;
  font-weight: 700;
  line-height: 1.55;
  color: var(--color-ink);
  transition: color var(--transition);
}

.card__excerpt {
  font-family: var(--font-jp);
  font-size: 0.875rem;
  font-weight: 400;
  line-height: 1.8;
  color: rgba(42, 42, 42, 0.7);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.card__meta {
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 300;
  color: var(--color-gray);
  letter-spacing: 0.04em;
  margin-top: 4px;
}

/* ============================================
   Sidebar
   ============================================ */
.sidebar {
  position: sticky;
  top: 100px;
  display: flex;
  flex-direction: column;
  gap: 36px;
}

.sidebar__section {
  padding-bottom: 32px;
  border-bottom: var(--border);
}

.sidebar__section:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.sidebar__heading {
  font-family: var(--font-display);
  font-size: 0.8125rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-gray);
  margin-bottom: 16px;
}

/* Author Profile */
.sidebar__author {
  text-align: center;
}

.sidebar__author-photo {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  object-fit: cover;
  margin: 0 auto 14px;
}

.sidebar__author-name {
  font-family: var(--font-jp);
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.sidebar__author-bio {
  font-family: var(--font-jp);
  font-size: 0.8125rem;
  font-weight: 400;
  line-height: 1.75;
  color: rgba(42, 42, 42, 0.65);
}

/* Categories */
.sidebar__category-list {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.sidebar__category-item {
  border-bottom: 1px solid rgba(42, 42, 42, 0.05);
}

.sidebar__category-item:last-child {
  border-bottom: none;
}

.sidebar__category-link {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 0;
  font-family: var(--font-jp);
  font-size: 0.875rem;
  font-weight: 400;
  color: var(--color-ink);
  transition: color var(--transition);
}

.sidebar__category-link:hover {
  color: var(--color-green);
}

.sidebar__category-count {
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 300;
  color: var(--color-gray);
}

/* Tags */
.sidebar__tag-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.sidebar__tag {
  display: inline-block;
  font-family: var(--font-jp);
  font-size: 0.75rem;
  font-weight: 400;
  padding: 4px 12px;
  border: 1px solid rgba(42, 42, 42, 0.12);
  border-radius: 2px;
  color: rgba(42, 42, 42, 0.6);
  transition: all var(--transition);
}

.sidebar__tag:hover {
  border-color: var(--color-green);
  color: var(--color-green);
  background-color: rgba(52, 86, 62, 0.04);
}

/* About */
.sidebar__about-text {
  font-family: var(--font-jp);
  font-size: 0.8125rem;
  font-weight: 400;
  line-height: 1.85;
  color: rgba(42, 42, 42, 0.65);
}

/* ============================================
   Footer
   ============================================ */
.footer {
  border-top: var(--border);
  padding: 32px 0;
  margin-top: 40px;
}

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

.footer__copyright {
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 300;
  color: var(--color-gray);
  letter-spacing: 0.04em;
}

.footer__sns {
  display: flex;
  gap: 24px;
}

.footer__sns-link {
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 400;
  color: var(--color-gray);
  letter-spacing: 0.04em;
  transition: color var(--transition);
}

.footer__sns-link:hover {
  color: var(--color-ink);
}

/* ============================================
   Media Queries — Tablet (768px)
   ============================================ */
@media (max-width: 768px) {
  .main__inner {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .sidebar {
    position: static;
    border-top: var(--border);
    padding-top: 40px;
  }

  .card__link {
    grid-template-columns: 180px 1fr;
    gap: 20px;
  }

  .header__inner {
    padding: 16px 20px;
  }

  .main {
    padding: 40px 0 60px;
  }

  .main__inner {
    padding: 0 20px;
  }

  .footer__inner {
    padding: 0 20px;
    flex-direction: column;
    gap: 16px;
    text-align: center;
  }
}

/* ============================================
   Media Queries — Mobile (480px)
   ============================================ */
@media (max-width: 480px) {
  html {
    font-size: 15px;
  }

  .header__logo-text {
    font-size: 1.25rem;
  }

  .header__nav-list {
    gap: 20px;
  }

  .header__nav-link {
    font-size: 0.8125rem;
  }

  .card__link {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .card__image-wrapper {
    aspect-ratio: 16 / 9;
  }

  .card__title {
    font-size: 1rem;
  }

  .card__excerpt {
    font-size: 0.8125rem;
  }

  .articles {
    gap: 32px;
  }

  .card {
    padding-bottom: 32px;
  }

  .sidebar__author-photo {
    width: 64px;
    height: 64px;
  }

  .sidebar__tag {
    font-size: 0.6875rem;
    padding: 3px 10px;
  }

  .footer__sns {
    gap: 20px;
  }
}

/* ============================================
   Utility — Selection & Focus
   ============================================ */
::selection {
  background-color: var(--color-rose);
  color: var(--color-ink);
}

:focus-visible {
  outline: 2px solid var(--color-green);
  outline-offset: 2px;
}

/* ============================================
   Print Styles
   ============================================ */
@media print {
  .header,
  .sidebar,
  .footer__sns {
    display: none;
  }

  body {
    background: #fff;
    color: #000;
  }

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

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

  .card__image-wrapper {
    display: none;
  }
}