/* ============================================================
   AppLogi Media — Design System
   ============================================================ */

/* --- Google Fonts --- */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&family=Noto+Sans+JP:wght@400;500;700;900&display=swap');

/* --- Tokens --- */
:root {
  --color-primary:       #C51605;
  --color-primary-dark:  #8E0F02;
  --color-primary-light: #FDECEB;
  --color-accent:        #FF8A00;
  --color-accent-light:  #FFF1DC;
  --color-text-base:     #1A1A2E;
  --color-text-muted:    #6B7280;
  --color-text-light:    #9CA3AF;
  --color-bg:            #FFFFFF;
  --color-bg-secondary:  #F8F9FC;
  --color-border:        #E5E7EB;

  --text-xs:   12px;
  --text-sm:   14px;
  --text-base: 16px;
  --text-lg:   18px;
  --text-xl:   20px;
  --text-2xl:  24px;
  --text-3xl:  30px;
  --text-4xl:  36px;

  --container-max: 1200px;
  --content-max:    720px;
  --sidebar-width:  300px;

  --bp-sm:  640px;
  --bp-md:  768px;
  --bp-lg:  1024px;
  --bp-xl:  1280px;

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 28px;

  --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.08);
  --shadow-lg: 0 8px 32px rgba(0,0,0,0.10);

  --transition: 0.18s ease;
}

/* --- Reset --- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: 'Inter', 'Noto Sans JP', sans-serif;
  font-size: var(--text-base);
  color: var(--color-text-base);
  background: var(--color-bg);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button { cursor: pointer; border: none; background: none; font: inherit; }
input, textarea, select { font: inherit; }

/* --- Layout --- */
.container {
  width: min(calc(100% - 40px), var(--container-max));
  margin-inline: auto;
}
.container--narrow {
  width: min(calc(100% - 40px), var(--content-max));
  margin-inline: auto;
}

.section { padding: 80px 0; }
.section--sm { padding: 48px 0; }
.section--lg { padding: 112px 0; }
.section--secondary { background: var(--color-bg-secondary); }
.section--primary {
  background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 100%);
  color: #fff;
}
.section--accent {
  background: linear-gradient(135deg, #D97706 0%, var(--color-accent) 100%);
  color: #fff;
}

/* --- Grid --- */
.grid { display: grid; gap: 24px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

/* ============================================================
   HEADER
   ============================================================ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--color-border);
  height: 64px;
}
.site-header__inner {
  display: flex;
  align-items: center;
  gap: 32px;
  height: 64px;
}
.site-header__logo {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 18px;
  font-weight: 800;
  color: var(--color-text-base);
  text-decoration: none;
}
.site-header__logo-img {
  display: block;
  /* width: auto; */
  height: 32px;
  width: clamp(150px, 10vw, 240px);
}
.site-header__logo-sub {
  font-size: 11px;
  font-weight: 500;
  color: var(--color-text-muted);
  letter-spacing: 0.04em;
  padding-left: 10px;
  border-left: 1px solid var(--color-border);
  line-height: 1.2;
}
@media (max-width: 768px) {
  .site-header__logo-sub { display: none; }
}
.site-header__nav {
  display: flex;
  align-items: center;
  gap: 4px;
  flex: 1;
}
.site-header__nav-list,
.site-header__nav ul {
  display: flex;
  align-items: center;
  gap: 4px;
  list-style: none;
  margin: 0;
  padding: 0;
}
.site-header__nav li,
.site-header__nav-list li {
  list-style: none;
  margin: 0;
  padding: 0;
}
.site-header__nav a {
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-muted);
  transition: var(--transition);
}
.site-header__nav a:hover,
.site-header__nav a.active {
  color: var(--color-primary);
  background: var(--color-primary-light);
}
.site-header__actions {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.site-header__search-btn {
  width: 36px;
  height: 36px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  color: var(--color-text-muted);
  transition: var(--transition);
}
.site-header__search-btn:hover {
  background: var(--color-bg-secondary);
  color: var(--color-text-base);
}
.site-header__hamburger {
  display: none;
  width: 36px;
  height: 36px;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  color: var(--color-text-base);
}

/* Mobile nav */
.mobile-nav {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 200;
  background: rgba(0,0,0,0.4);
}
.mobile-nav.is-open { display: block; }
.mobile-nav__panel {
  position: absolute;
  top: 0;
  right: 0;
  width: min(320px, 90vw);
  height: 100%;
  background: var(--color-bg);
  overflow-y: auto;
  padding: 24px;
}
.mobile-nav__close {
  display: flex;
  justify-content: flex-end;
  margin-bottom: 24px;
}
.mobile-nav__links { display: flex; flex-direction: column; gap: 4px; }
.mobile-nav__links a {
  display: block;
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  font-size: var(--text-base);
  font-weight: 500;
  color: var(--color-text-base);
  transition: var(--transition);
}
.mobile-nav__links a:hover {
  background: var(--color-bg-secondary);
  color: var(--color-primary);
}

/* ============================================================
   BUTTONS
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 22px;
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  font-weight: 700;
  line-height: 1.4;
  transition: var(--transition);
  white-space: nowrap;
}
.btn--primary {
  background: var(--color-primary);
  color: #fff;
}
.btn--primary:hover {
  background: var(--color-primary-dark);
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(197,22,5,0.30);
}
.btn--secondary {
  background: var(--color-primary-light);
  color: var(--color-primary);
}
.btn--secondary:hover {
  background: #F8D6D2;
}
.btn--outline {
  background: transparent;
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
}
.btn--outline:hover {
  background: var(--color-primary);
  color: #fff;
}
.btn--white {
  background: #fff;
  color: var(--color-primary);
  box-shadow: var(--shadow-md);
}
.btn--white:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-1px);
}
.btn--accent {
  background: var(--color-accent);
  color: #fff;
}
.btn--accent:hover {
  background: #E37C00;
  transform: translateY(-1px);
}
.btn--ghost {
  background: rgba(0,0,0,0.3);
  color: #fff;
  border: 1px solid rgba(255,255,255,0.30);
}
.btn--ghost:hover {
  background: rgba(0,0,0,0.25);
}
.btn--sm {
  padding: 7px 16px;
  font-size: var(--text-xs);
  border-radius: var(--radius-sm);
}
.btn--lg {
  padding: 14px 32px;
  font-size: var(--text-base);
  border-radius: var(--radius-lg);
}

/* ============================================================
   BADGE / TAG
   ============================================================ */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 3px 10px;
  border-radius: 999px;
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.03em;
}
.badge--primary { background: var(--color-primary-light); color: var(--color-primary); }
.badge--accent  { background: var(--color-accent-light);  color: #00806f; }
.badge--muted   { background: var(--color-bg-secondary);  color: var(--color-text-muted); }

.tag {
  display: inline-flex;
  align-items: center;
  padding: 4px 12px;
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: 999px;
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  transition: var(--transition);
}
.tag:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  background: var(--color-primary-light);
}
.tags { display: flex; flex-wrap: wrap; gap: 8px; }

/* ============================================================
   BREADCRUMB
   ============================================================ */
.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 4px;
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  padding: 12px 0;
}
.breadcrumb a {
  color: var(--color-text-muted);
  transition: var(--transition);
}
.breadcrumb a:hover { color: var(--color-primary); }
.breadcrumb__sep { margin: 0 2px; opacity: 0.5; }
.breadcrumb__current { color: var(--color-text-base); font-weight: 500; }

/* ============================================================
   HERO (Media Top)
   ============================================================ */
.hero-media {
  color: #fff;
  padding: 72px 0 64px;
  position: relative;
  overflow: hidden;
}
.hero-media > picture {
  position: absolute;
  inset: 0;
  z-index: 0;
  display: block;
}
.hero-media > picture img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}
.hero-media::before {
  content: '';
  position: absolute;
  inset: 0;
  z-index: 1;
  background:
    radial-gradient(circle at 80% 50%, rgba(0,184,162,0.20) 0%, transparent 50%),
    radial-gradient(circle at 10% 80%, rgba(0,0,0,0.4) 0%, transparent 40%);
}
.hero-media > .container {
  position: relative;
  z-index: 2;
}
.hero-media__inner {
  position: relative;
  display: grid;
  grid-template-columns: 1fr 360px;
  gap: 48px;
  align-items: center;
}
.hero-media__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: #000;
  /* border: 1px solid rgba(255,255,255,0.25); */
  padding: 5px 14px;
  border-radius: 999px;
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.05em;
  margin-bottom: 20px;
}
.hero-media__title {
  font-size: clamp(28px, 4vw, 46px);
  font-weight: 900;
  line-height: 1.2;
  margin-bottom: 16px;
  letter-spacing: -0.02em;
}
.hero-media__title em {
  font-style: normal;
  color: #FFD6CC;
  text-shadow: 2px 3px 3px rgba(0, 0, 0, 0.4);
}
.hero-media__desc {
  font-size: var(--text-lg);
  font-weight: bold;
  color: rgba(255,255,255,0.85);
  line-height: 1.7;
  margin-bottom: 32px;
  text-shadow: 2px 3px 3px rgba(0, 0, 0, 0.4);
}
.hero-media__actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}
.hero-newsletter {
  background: rgba(255,255,255,0.12);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(255,255,255,0.20);
  border-radius: 10px;
  padding: 32px;
  font-weight: bold;
}
.hero-newsletter__title {
  font-size: var(--text-lg);
  font-weight: 700;
  margin-bottom: 8px;
}
.hero-newsletter__desc {
  font-size: var(--text-sm);
  color: rgba(255,255,255,0.80);
  margin-bottom: 20px;
  line-height: 1.6;
}
.hero-newsletter__form {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.hero-newsletter__input {
  width: 100%;
  padding: 11px 16px;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(255,255,255,0.25);
  background: rgba(255,255,255,0.15);
  color: #fff;
  font-size: var(--text-sm);
  outline: none;
  transition: var(--transition);
}
.hero-newsletter__input::placeholder { color: rgba(255,255,255,0.55); }
.hero-newsletter__input:focus {
  border-color: rgba(255,255,255,0.55);
  background: rgba(255,255,255,0.20);
}
.hero-newsletter__note {
  font-size: var(--text-xs);
  color: rgba(255,255,255,0.60);
  text-align: center;
}
.hero-newsletter__hp {
  position: absolute !important;
  left: -10000px !important;
  width: 1px !important;
  height: 1px !important;
  overflow: hidden !important;
}

/* ============================================================
   FORM MESSAGES (newsletter / trial)
   ============================================================ */
.form-message {
  margin: 12px 0 0;
  font-size: var(--text-sm);
  text-align: center;
  min-height: 1.4em;
}
.form-message.is-success { color: #00B8A2; }
.form-message.is-error   { color: #ff7a7a; }
.is-front .form-message.is-error { color: #ffd0d0; }

/* ============================================================
   SECTION HEADING
   ============================================================ */
.section-heading {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 32px;
}
.section-heading__title {
  font-size: var(--text-2xl);
  font-weight: 800;
  color: var(--color-text-base);
  letter-spacing: -0.02em;
}
.section-heading__title span {
  display: block;
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-primary);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: 4px;
}

/* ============================================================
   ARTICLE CARD
   ============================================================ */
.article-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}
.article-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-3px);
  border-color: transparent;
}
.article-card__thumb {
  aspect-ratio: 16/9;
  overflow: hidden;
  background: var(--color-bg-secondary);
  position: relative;
}
.article-card__thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}
.article-card:hover .article-card__thumb img { transform: scale(1.04); }
.article-card__thumb-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--color-primary-light), var(--color-accent-light));
  font-size: 40px;
  color: var(--color-primary);
}
.article-card__body {
  padding: 20px;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.article-card__category {
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--color-primary);
  letter-spacing: 0.04em;
}
.article-card__title {
  font-size: var(--text-base);
  font-weight: 700;
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  color: var(--color-text-base);
  transition: var(--transition);
}
.article-card:hover .article-card__title { color: var(--color-primary); }
.article-card__excerpt {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  flex: 1;
}
.article-card__meta {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: var(--text-xs);
  color: var(--color-text-light);
  margin-top: auto;
  padding-top: 12px;
  border-top: 1px solid var(--color-border);
}
.article-card__author {
  display: flex;
  align-items: center;
  gap: 6px;
}
.article-card__author-avatar {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--color-bg-secondary);
  object-fit: cover;
}
.article-card__author-avatar-placeholder {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--color-primary-light);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 10px;
  color: var(--color-primary);
  font-weight: 700;
  flex-shrink: 0;
}
.article-card__reading-time {
  display: flex;
  align-items: center;
  gap: 4px;
  margin-left: auto;
}

/* Featured card */
.article-card--featured {
  flex-direction: row;
  min-height: 260px;
}
.article-card--featured .article-card__thumb {
  width: 40%;
  flex-shrink: 0;
  aspect-ratio: unset;
}
.article-card--featured .article-card__body {
  padding: 28px;
}
.article-card--featured .article-card__title {
  font-size: var(--text-xl);
  -webkit-line-clamp: 3;
}

/* ============================================================
   CATEGORY CARD
   ============================================================ */
.category-nav {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}
.category-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 24px 20px;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 12px;
  transition: var(--transition);
  cursor: pointer;
}
.category-card:hover {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-light);
  transform: translateY(-2px);
}
.category-card__icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 26px;
}
.category-card__icon--blue   { background: var(--color-primary-light); }
.category-card__icon--teal   { background: var(--color-accent-light); }
.category-card__icon--purple { background: #f3e8ff; }
.category-card__icon--amber  { background: #fff7e0; }
.category-card__name {
  font-size: var(--text-base);
  font-weight: 700;
  color: var(--color-text-base);
}
.category-card__desc {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  line-height: 1.5;
}
.category-card__count {
  font-size: var(--text-xs);
  color: var(--color-primary);
  font-weight: 600;
}

/* ============================================================
   POPULAR RANKING
   ============================================================ */
.ranking-list { display: flex; flex-direction: column; gap: 16px; }
.ranking-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  padding: 16px;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: var(--transition);
}
.ranking-item:hover {
  box-shadow: var(--shadow-md);
  border-color: transparent;
}
.ranking-item__num {
  font-size: var(--text-2xl);
  font-weight: 900;
  color: var(--color-border);
  line-height: 1;
  flex-shrink: 0;
  width: 32px;
  text-align: center;
}
.ranking-item:nth-child(1) .ranking-item__num { color: #FFB800; }
.ranking-item:nth-child(2) .ranking-item__num { color: #B0BEC5; }
.ranking-item:nth-child(3) .ranking-item__num { color: #CD7F32; }
.ranking-item__body { flex: 1; min-width: 0; }
.ranking-item__category {
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 4px;
}
.ranking-item__title {
  font-size: var(--text-sm);
  font-weight: 700;
  color: var(--color-text-base);
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  transition: var(--transition);
}
.ranking-item:hover .ranking-item__title { color: var(--color-primary); }
.ranking-item__meta {
  font-size: var(--text-xs);
  color: var(--color-text-light);
  margin-top: 6px;
}

/* ============================================================
   PRODUCT PROMO SECTION
   ============================================================ */
.product-promo {
  background: linear-gradient(135deg, #5A0902 0%, var(--color-primary) 100%);
  color: #fff;
  border-radius: var(--radius-xl);
  padding: 56px 64px;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 40px;
  align-items: center;
}
.product-promo__eyebrow {
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.7);
  margin-bottom: 12px;
}
.product-promo__title {
  font-size: clamp(22px, 3vw, 34px);
  font-weight: 900;
  line-height: 1.3;
  margin-bottom: 16px;
}
.product-promo__desc {
  font-size: var(--text-base);
  color: rgba(255,255,255,0.85);
  line-height: 1.7;
  margin-bottom: 32px;
}
.product-promo__actions { display: flex; gap: 12px; flex-wrap: wrap; }
.product-promo__features {
  display: flex;
  flex-direction: column;
  gap: 14px;
  min-width: 200px;
}
.product-promo__feature {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: var(--text-sm);
  color: rgba(255,255,255,0.9);
}
.product-promo__feature-icon {
  width: 28px;
  height: 28px;
  background: rgba(255,255,255,0.15);
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 14px;
}

/* ============================================================
   NEWSLETTER SECTION
   ============================================================ */
.newsletter-section {
  background: var(--color-bg-secondary);
  border-radius: var(--radius-xl);
  padding: 56px 48px;
  text-align: center;
}
.newsletter-section__title {
  font-size: var(--text-3xl);
  font-weight: 800;
  margin-bottom: 12px;
}
.newsletter-section__desc {
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  margin-bottom: 32px;
}
.newsletter-form {
  display: flex;
  flex-direction: column;
  gap: 12px;
  max-width: 560px;
  margin: 0 auto 12px;
}
.newsletter-form__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}
.newsletter-form__input {
  width: 100%;
  padding: 12px 18px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  outline: none;
  background: #fff;
  transition: var(--transition);
}
.newsletter-form__input:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-light);
}
.newsletter-form__submit {
  align-self: center;
  min-width: 200px;
  justify-content: center;
}
.newsletter-form__note {
  font-size: var(--text-xs);
  color: var(--color-text-light);
}
@media (max-width: 600px) {
  .newsletter-form__grid { grid-template-columns: 1fr; }
}

/* ============================================================
   ARTICLE LIST PAGE
   ============================================================ */
.articles-layout {
  display: grid;
  grid-template-columns: 1fr var(--sidebar-width);
  gap: 48px;
  align-items: start;
}
.articles-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}
.articles-filter {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 28px;
}
.filter-btn {
  padding: 6px 16px;
  border-radius: 999px;
  font-size: var(--text-sm);
  font-weight: 500;
  border: 1px solid var(--color-border);
  color: var(--color-text-muted);
  background: var(--color-bg);
  transition: var(--transition);
}
.filter-btn:hover,
.filter-btn.active {
  background: var(--color-primary);
  color: #fff;
  border-color: var(--color-primary);
}

/* Pagination */
.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-top: 48px;
}
.pagination__btn {
  width: 40px;
  height: 40px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  font-size: var(--text-sm);
  font-weight: 600;
  border: 1px solid var(--color-border);
  color: var(--color-text-muted);
  transition: var(--transition);
}
.pagination__btn:hover,
.pagination__btn.active {
  background: var(--color-primary);
  color: #fff;
  border-color: var(--color-primary);
}

/* ============================================================
   SIDEBAR
   ============================================================ */
.sidebar {
  display: flex;
  flex-direction: column;
  gap: 32px;
  position: sticky;
  top: 80px;
}
.sidebar-widget {
  background: var(--color-bg-secondary);
  border-radius: var(--radius-lg);
  padding: 24px;
}
.sidebar-widget__title {
  font-size: var(--text-sm);
  font-weight: 700;
  color: var(--color-text-muted);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--color-primary);
}
.sidebar-cta {
  background: linear-gradient(135deg, var(--color-primary-dark), var(--color-primary));
  color: #fff;
  border-radius: var(--radius-lg);
  padding: 24px;
  text-align: center;
}
.sidebar-cta__title {
  font-size: var(--text-base);
  font-weight: 700;
  margin-bottom: 8px;
}
.sidebar-cta__desc {
  font-size: var(--text-sm);
  color: rgba(255,255,255,0.85);
  line-height: 1.6;
  margin-bottom: 16px;
}
.sidebar-ranking { display: flex; flex-direction: column; gap: 12px; }
.sidebar-ranking-item {
  display: flex;
  gap: 10px;
  align-items: flex-start;
}
.sidebar-ranking-item__num {
  font-size: var(--text-base);
  font-weight: 900;
  color: var(--color-border);
  line-height: 1.3;
  flex-shrink: 0;
  width: 20px;
}
.sidebar-ranking-item:nth-child(1) .sidebar-ranking-item__num { color: #FFB800; }
.sidebar-ranking-item:nth-child(2) .sidebar-ranking-item__num { color: #B0BEC5; }
.sidebar-ranking-item:nth-child(3) .sidebar-ranking-item__num { color: #CD7F32; }
.sidebar-ranking-item__title {
  font-size: var(--text-sm);
  font-weight: 500;
  line-height: 1.5;
  color: var(--color-text-base);
  transition: var(--transition);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.sidebar-ranking-item__title:hover { color: var(--color-primary); }

/* ============================================================
   ARTICLE DETAIL
   ============================================================ */
.reading-progress {
  position: fixed;
  top: 64px;
  left: 0;
  width: 0%;
  height: 3px;
  background: linear-gradient(to right, var(--color-primary), var(--color-accent));
  z-index: 99;
  transition: width 0.1s linear;
}

.article-layout {
  display: grid;
  grid-template-columns: 1fr var(--sidebar-width);
  gap: 48px;
  align-items: start;
}

.article-header {
  margin-bottom: 32px;
}
.article-header__category {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 16px;
}
.article-header__title {
  font-size: clamp(22px, 3.5vw, 36px);
  font-weight: 900;
  line-height: 1.3;
  letter-spacing: -0.02em;
  margin-bottom: 20px;
}
.article-header__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px;
  padding: 16px 0;
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  margin-bottom: 24px;
}
.article-header__author {
  display: flex;
  align-items: center;
  gap: 10px;
}
.article-header__author-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  object-fit: cover;
  background: var(--color-bg-secondary);
}
.article-header__author-avatar-placeholder {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--color-primary-light);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: var(--text-sm);
  color: var(--color-primary);
  flex-shrink: 0;
}
.article-header__author-name {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text-base);
}
.article-header__author-role {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}
.article-header__dates {
  display: flex;
  gap: 12px;
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}
.article-header__reading-time {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  margin-left: auto;
}
.article-header__share {
  display: flex;
  align-items: center;
  gap: 8px;
}
.share-btn {
  width: 32px;
  height: 32px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  border: 1px solid var(--color-border);
  color: var(--color-text-muted);
  font-size: 14px;
  transition: var(--transition);
}
.share-btn:hover { background: var(--color-primary); color: #fff; border-color: var(--color-primary); }

.article-eyecatch {
  width: 100%;
  aspect-ratio: 1200/630;
  object-fit: cover;
  border-radius: var(--radius-lg);
  margin-bottom: 32px;
  background: linear-gradient(135deg, var(--color-primary-light), var(--color-accent-light));
}
.article-eyecatch-placeholder {
  width: 100%;
  aspect-ratio: 1200/630;
  border-radius: var(--radius-lg);
  margin-bottom: 32px;
  background: linear-gradient(135deg, var(--color-primary-light), var(--color-accent-light));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 80px;
}

/* Table of contents */
.toc {
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-left: 4px solid var(--color-primary);
  border-radius: var(--radius-md);
  padding: 24px;
  margin-bottom: 40px;
}
.toc__title {
  font-size: var(--text-sm);
  font-weight: 700;
  color: var(--color-text-base);
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.toc__list { display: flex; flex-direction: column; gap: 6px; padding-left: 4px; }
.toc__item {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  transition: var(--transition);
}
.toc__item a {
  color: inherit;
  transition: var(--transition);
  display: flex;
  gap: 8px;
  align-items: flex-start;
}
.toc__item a:hover { color: var(--color-primary); }
.toc__item a::before {
  content: '';
  display: inline-block;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--color-text-muted);
  flex-shrink: 0;
  margin-top: 8px;
}
.toc__item--h3 { padding-left: 16px; font-size: var(--text-xs); }

/* Article body */
.article-body {
  font-size: var(--text-base);
  line-height: 1.9;
  color: var(--color-text-base);
  max-width: var(--content-max);
}
.article-body h2 {
  font-size: var(--text-2xl);
  font-weight: 800;
  margin: 56px 0 20px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--color-border);
  color: var(--color-text-base);
  scroll-margin-top: 80px;
}
.article-body h3 {
  font-size: var(--text-xl);
  font-weight: 700;
  margin: 40px 0 16px;
  color: var(--color-text-base);
  scroll-margin-top: 80px;
}
.article-body p { margin-bottom: 24px; }
.article-body ul,
.article-body ol {
  padding-left: 24px;
  margin-bottom: 24px;
  list-style: revert;
}
.article-body li { margin-bottom: 8px; }
.article-body strong { font-weight: 700; }
.article-body blockquote {
  border-left: 4px solid var(--color-primary);
  padding: 16px 20px;
  background: var(--color-bg-secondary);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  margin: 24px 0;
  font-style: normal;
  color: var(--color-text-muted);
}
.article-body a {
  color: var(--color-primary);
  text-decoration: underline;
  text-underline-offset: 3px;
}
.article-body img {
  border-radius: var(--radius-md);
  margin: 24px 0;
  box-shadow: var(--shadow-md);
}

/* Inline CTA */
.inline-cta {
  background: linear-gradient(135deg, var(--color-primary-light), var(--color-accent-light));
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 28px 32px;
  margin: 40px 0;
  display: flex;
  gap: 20px;
  align-items: center;
}
.inline-cta__icon {
  font-size: 40px;
  flex-shrink: 0;
}
.inline-cta__body {}
.inline-cta__title {
  font-size: var(--text-lg);
  font-weight: 700;
  margin-bottom: 6px;
}
.inline-cta__desc {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  margin-bottom: 14px;
  line-height: 1.6;
}

/* Related article card (inline) */
.related-inline {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  margin: 32px 0;
  transition: var(--transition);
  display: flex;
  background: var(--color-bg);
}
.related-inline:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--color-primary);
}
.related-inline__thumb {
  width: 140px;
  flex-shrink: 0;
  overflow: hidden;
  background: var(--color-bg-secondary);
}
.related-inline__thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.related-inline__thumb-placeholder {
  width: 100%;
  height: 100%;
  min-height: 90px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
  background: linear-gradient(135deg, var(--color-primary-light), var(--color-accent-light));
}
.related-inline__body {
  padding: 16px;
  flex: 1;
}
.related-inline__category {
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 4px;
}
.related-inline__title {
  font-size: var(--text-sm);
  font-weight: 700;
  line-height: 1.5;
  color: var(--color-text-base);
  transition: var(--transition);
}
.related-inline:hover .related-inline__title { color: var(--color-primary); }

/* Article footer */
.article-footer {
  margin-top: 56px;
  padding-top: 32px;
  border-top: 2px solid var(--color-border);
}
.article-footer__summary {
  background: var(--color-bg-secondary);
  border-radius: var(--radius-lg);
  padding: 28px 32px;
  margin-bottom: 32px;
}
.article-footer__summary-title {
  font-size: var(--text-lg);
  font-weight: 700;
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.article-footer__cta {
  background: linear-gradient(135deg, #5A0902, var(--color-primary));
  color: #fff;
  border-radius: var(--radius-lg);
  padding: 32px 40px;
  margin-bottom: 32px;
  text-align: center;
}
.article-footer__cta-title {
  font-size: var(--text-xl);
  font-weight: 800;
  margin-bottom: 8px;
}
.article-footer__cta-desc {
  font-size: var(--text-base);
  color: rgba(255,255,255,0.85);
  margin-bottom: 24px;
  line-height: 1.7;
}
.article-footer__cta-btns {
  display: flex;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
}

/* Author card */
.author-card {
  display: flex;
  gap: 20px;
  padding: 24px;
  background: var(--color-bg-secondary);
  border-radius: var(--radius-lg);
  margin-bottom: 32px;
}
.author-card__avatar {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  object-fit: cover;
  background: var(--color-primary-light);
  flex-shrink: 0;
}
.author-card__avatar-placeholder {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: var(--color-primary-light);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 900;
  font-size: var(--text-2xl);
  color: var(--color-primary);
  flex-shrink: 0;
}
.author-card__name {
  font-size: var(--text-lg);
  font-weight: 700;
  margin-bottom: 4px;
}
.author-card__role {
  font-size: var(--text-sm);
  color: var(--color-primary);
  font-weight: 500;
  margin-bottom: 10px;
}
.author-card__bio {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.7;
}
.author-card__links {
  display: flex;
  gap: 8px;
  margin-top: 12px;
}
.author-card__link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  padding: 4px 10px;
  border: 1px solid var(--color-border);
  border-radius: 999px;
  transition: var(--transition);
}
.author-card__link:hover { color: var(--color-primary); border-color: var(--color-primary); }

/* Related articles grid */
.related-articles__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 16px;
}

/* ============================================================
   PAGE HEADER (Category, Authors, etc.)
   ============================================================ */
.page-header {
  background: var(--color-bg-secondary);
  padding: 48px 0 40px;
  border-bottom: 1px solid var(--color-border);
}
.page-header__eyebrow {
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--color-primary);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 8px;
}
.page-header__title {
  font-size: clamp(24px, 3vw, 40px);
  font-weight: 900;
  letter-spacing: -0.02em;
  margin-bottom: 12px;
}
.page-header__desc {
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  max-width: 600px;
  line-height: 1.7;
}
.page-header--primary {
  background: linear-gradient(135deg, #5A0902, var(--color-primary));
  color: #fff;
}
.page-header--primary .page-header__eyebrow { color: rgba(255,255,255,0.7); }
.page-header--primary .page-header__desc { color: rgba(255,255,255,0.85); }

/* ============================================================
   AUTHORS PAGE
   ============================================================ */
.authors-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.author-profile-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 28px;
  text-align: center;
  transition: var(--transition);
}
.author-profile-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-3px);
  border-color: transparent;
}
.author-profile-card__avatar {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  margin: 0 auto 16px;
  background: var(--color-primary-light);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 900;
  font-size: var(--text-2xl);
  color: var(--color-primary);
}
.author-profile-card__name {
  font-size: var(--text-lg);
  font-weight: 700;
  margin-bottom: 4px;
}
.author-profile-card__role {
  font-size: var(--text-sm);
  color: var(--color-primary);
  margin-bottom: 12px;
}
.author-profile-card__bio {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.author-profile-card__count {
  font-size: var(--text-xs);
  color: var(--color-text-light);
  margin-top: 12px;
}

/* ============================================================
   CONTACT / ABOUT
   ============================================================ */
.contact-form {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: 48px;
  max-width: 640px;
  margin: 0 auto;
}
.form-group { margin-bottom: 24px; }
.form-label {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: var(--text-sm);
  font-weight: 600;
  margin-bottom: 8px;
}
.form-required {
  font-size: var(--text-xs);
  background: var(--color-primary);
  color: #fff;
  padding: 1px 6px;
  border-radius: 3px;
}
.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: var(--text-base);
  color: var(--color-text-base);
  background: var(--color-bg);
  outline: none;
  transition: var(--transition);
}
.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-light);
}
.form-textarea { min-height: 140px; resize: vertical; }
.form-note {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  margin-top: 6px;
}

/* About page */
.policy-section {
  max-width: 800px;
  margin: 0 auto;
}
.policy-section h2 {
  font-size: var(--text-2xl);
  font-weight: 800;
  margin: 48px 0 16px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--color-border);
}
.policy-section h3 {
  font-size: var(--text-xl);
  font-weight: 700;
  margin: 32px 0 12px;
}
.policy-section p {
  color: var(--color-text-muted);
  line-height: 1.8;
  margin-bottom: 16px;
}
.policy-section ul {
  list-style: disc;
  padding-left: 24px;
  color: var(--color-text-muted);
  margin-bottom: 16px;
}
.policy-section li { margin-bottom: 8px; line-height: 1.7; }

/* ============================================================
   TRIAL APPLICATION PAGE
   ============================================================ */
.trial-layout {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 48px;
  align-items: start;
}
.form-errors {
  background: #fff5f5;
  border: 1px solid #ffd0d0;
  border-radius: var(--radius-md);
  padding: 16px 20px;
  margin-bottom: 24px;
}
.form-errors__title {
  font-weight: 700;
  color: #c0392b;
  margin-bottom: 8px;
}
.form-errors ul {
  margin: 0;
  padding-left: 20px;
  color: #c0392b;
  font-size: var(--text-sm);
  line-height: 1.7;
}

.thanks-card {
  max-width: 720px;
  margin: 0 auto;
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: 56px 48px;
  text-align: center;
  box-shadow: 0 6px 24px rgba(0,0,0,0.04);
}
.thanks-card__icon {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background: #00B8A2;
  color: #fff;
  font-size: 36px;
  font-weight: 800;
  line-height: 72px;
  margin: 0 auto 24px;
}
.thanks-card__title {
  font-size: var(--text-3xl);
  font-weight: 800;
  margin-bottom: 16px;
}
.thanks-card__lead {
  color: var(--color-text-muted);
  line-height: 1.8;
  margin-bottom: 32px;
}
.thanks-card__steps {
  background: var(--color-bg-secondary);
  border-radius: var(--radius-lg);
  padding: 24px 28px;
  margin-bottom: 32px;
  text-align: left;
}
.thanks-card__steps-title {
  font-weight: 700;
  margin-bottom: 12px;
}
.thanks-card__steps-list {
  margin: 0;
  padding-left: 20px;
  font-size: var(--text-sm);
  line-height: 1.9;
  color: var(--color-text-muted);
}
.thanks-card__steps-list strong { color: var(--color-text-base); }
.thanks-card__actions {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 24px;
}
.thanks-card__note {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}
@media (max-width: 900px) {
  .trial-layout { grid-template-columns: 1fr; }
}
@media (max-width: 600px) {
  .thanks-card { padding: 40px 24px; }
}

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer {
  background: var(--color-text-base);
  color: #fff;
  padding: 64px 0 0;
}
.site-footer__grid {
  display: grid;
  grid-template-columns: 260px 1fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255,255,255,0.10);
}
.site-footer__brand {}
.site-footer__logo {
  display: inline-flex;
  align-items: center;
  margin-bottom: 16px;
  text-decoration: none;
}
.site-footer__logo-img {
  display: block;
  width: auto;
  height: 32px;
}
.site-footer__desc {
  font-size: var(--text-sm);
  color: rgba(255,255,255,0.60);
  line-height: 1.7;
  margin-bottom: 20px;
}
.site-footer__social {
  display: flex;
  gap: 10px;
}
.site-footer__social-link {
  width: 36px;
  height: 36px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: rgba(255,255,255,0.10);
  color: rgba(255,255,255,0.70);
  font-size: 14px;
  transition: var(--transition);
}
.site-footer__social-link:hover {
  background: var(--color-primary);
  color: #fff;
}
.site-footer__col-title {
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.50);
  margin-bottom: 16px;
}
.site-footer__links {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.site-footer__links a {
  font-size: var(--text-sm);
  color: rgba(255,255,255,0.70);
  transition: var(--transition);
}
.site-footer__links a:hover { color: #fff; }
.site-footer__bottom {
  padding: 20px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  font-size: var(--text-xs);
  color: rgba(255,255,255,0.40);
}
.site-footer__bottom-links {
  display: flex;
  gap: 16px;
}
.site-footer__bottom-links a {
  color: rgba(255,255,255,0.50);
  transition: var(--transition);
}
.site-footer__bottom-links a:hover { color: rgba(255,255,255,0.80); }

/* Float CTA */
.float-cta {
  position: fixed;
  right: 24px;
  bottom: 24px;
  z-index: 90;
}
.float-cta__btn {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 14px 20px;
  background: var(--color-primary);
  color: #fff;
  border-radius: var(--radius-xl);
  font-size: var(--text-sm);
  font-weight: 700;
  box-shadow: 0 6px 24px rgba(197,22,5,0.40);
  transition: var(--transition);
}
.float-cta__btn:hover {
  background: var(--color-primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 10px 32px rgba(197,22,5,0.45);
}

/* ============================================================
   MISC UTILITIES
   ============================================================ */
.text-center { text-align: center; }
.text-muted { color: var(--color-text-muted); }
.font-bold { font-weight: 700; }
.mt-8  { margin-top: 8px; }
.mt-16 { margin-top: 16px; }
.mt-24 { margin-top: 24px; }
.mt-32 { margin-top: 32px; }
.mt-48 { margin-top: 48px; }
.mb-8  { margin-bottom: 8px; }
.mb-16 { margin-bottom: 16px; }
.mb-24 { margin-bottom: 24px; }
.mb-32 { margin-bottom: 32px; }
.divider {
  border: none;
  border-top: 1px solid var(--color-border);
  margin: 32px 0;
}

/* Empty / placeholder image */
.thumb-placeholder {
  width: 100%;
  height: 100%;
  min-height: 180px;
  background: linear-gradient(135deg, var(--color-primary-light) 0%, var(--color-accent-light) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 48px;
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1090px) {
  .site-header__hamburger { display: flex; }
  .site-header__nav { display: none; }
  .site-header__actions .btn { display: none; }
}
@media (max-width: 1024px) {
  .hero-media__inner {
    grid-template-columns: 1fr;
  }
  .hero-newsletter { max-width: 480px; }
  .articles-layout {
    grid-template-columns: 1fr;
  }
  .sidebar { position: static; }
  .article-layout { grid-template-columns: 1fr; }
  .product-promo { grid-template-columns: 1fr; }
  .product-promo__features { flex-direction: row; flex-wrap: wrap; }
  .site-footer__grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }
}
@media (max-width: 768px) {
  .container { width: calc(100% - 32px); }
  .section { padding: 56px 0; }
  .section-heading { flex-direction: column; align-items: flex-start; gap: 8px; }
  .hero-media { padding: 48px 0; }
  .category-nav { grid-template-columns: repeat(2, 1fr); }
  .articles-grid { grid-template-columns: 1fr; }
  .article-card--featured { flex-direction: column; }
  .article-card--featured .article-card__thumb { width: 100%; aspect-ratio: 16/9; }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .related-articles__grid { grid-template-columns: 1fr; }
  .authors-grid { grid-template-columns: repeat(2, 1fr); }
  .product-promo { padding: 40px 28px; }
  .newsletter-section { padding: 40px 28px; }
  .newsletter-form { flex-direction: column; }
  .contact-form { padding: 32px 24px; }
  .site-footer__grid { grid-template-columns: 1fr; gap: 32px; }
  .site-footer__bottom { flex-direction: column; text-align: center; }
  .float-cta { right: 16px; bottom: 16px; }
  .inline-cta { flex-direction: column; gap: 12px; }
}
@media (max-width: 480px) {
  .category-nav { grid-template-columns: 1fr; }
  .grid-2 { grid-template-columns: 1fr; }
  .grid-3 { grid-template-columns: 1fr; }
  .grid-4 { grid-template-columns: 1fr; }
  .authors-grid { grid-template-columns: 1fr; }
  .hero-media__actions { flex-direction: column; }
  .article-footer__cta { padding: 24px; }
}