/* ==========================================================================
   MERIDIANO — Layout & Grid System
   ========================================================================== */

/* Containers */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--gutter);
  padding-right: var(--gutter);
}

.container-wide {
  width: 100%;
  max-width: var(--container-wide);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--gutter);
  padding-right: var(--gutter);
}

.container-reading {
  width: 100%;
  max-width: var(--container-reading);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--gutter);
  padding-right: var(--gutter);
}

.container-narrow {
  width: 100%;
  max-width: var(--container-narrow);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--gutter);
  padding-right: var(--gutter);
}

/* 12-Column Editorial Grid */
.editorial-grid {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  column-gap: clamp(1rem, 2.5vw, 2rem);
  row-gap: clamp(1.5rem, 3vw, 2.5rem);
}

.editorial-grid > * {
  min-width: 0;
  max-width: 100%;
}

.col-12 { grid-column: span 12; }
.col-11 { grid-column: span 11; }
.col-10 { grid-column: span 10; }
.col-9  { grid-column: span 9; }
.col-8  { grid-column: span 8; }
.col-7  { grid-column: span 7; }
.col-6  { grid-column: span 6; }
.col-5  { grid-column: span 5; }
.col-4  { grid-column: span 4; }
.col-3  { grid-column: span 3; }
.col-2  { grid-column: span 2; }
.col-1  { grid-column: span 1; }

@media (max-width: 1024px) {
  .col-8, .col-7, .col-9 { grid-column: span 12; }
  .col-4, .col-5, .col-3 { grid-column: span 12; }
  .col-6 { grid-column: span 12; }
}

@media (max-width: 768px) {
  .editorial-grid {
    grid-template-columns: minmax(0, 1fr);
    column-gap: 0;
  }
  .col-12, .col-11, .col-10, .col-9, .col-8, .col-7, .col-6, .col-5, .col-4, .col-3, .col-2, .col-1 {
    grid-column: span 1 !important;
  }
}

@media (max-width: 1024px) {
  .section-3-col-left {
    border-right: none !important;
    border-bottom: 1px solid var(--rule-standard) !important;
    padding-right: 0 !important;
    padding-bottom: 2rem !important;
    margin-bottom: 2rem !important;
  }
}

/* Sections */
.section {
  padding-top: clamp(2.5rem, 5vw, 4.5rem);
  padding-bottom: clamp(2.5rem, 5vw, 4.5rem);
  position: relative;
}

.section--border-top {
  border-top: 1px solid var(--rule-standard);
}

.section--border-bottom {
  border-bottom: 1px solid var(--rule-standard);
}

.section-dark {
  background-color: var(--bg-dark);
  color: var(--color-light-ink);
}

.section-dark h1,
.section-dark h2,
.section-dark h3 {
  color: var(--color-light-ink);
}

.section-dark p {
  color: var(--color-light-secondary);
}

.section-dark .editorial-index {
  color: var(--color-light-muted);
}

/* Section Headers */
.section-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  flex-wrap: wrap;
  gap: 0.75rem 1.5rem;
  border-bottom: 1px solid var(--rule-standard);
  padding-bottom: 0.875rem;
  margin-bottom: clamp(1.75rem, 3.5vw, 3rem);
}

.section-dark .section-header {
  border-bottom-color: var(--rule-dark);
}

.section-header__title-group {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  min-width: 0;
  flex: 1 1 auto;
  max-width: 100%;
}

.section-header__index {
  font-family: var(--font-mono);
  font-size: var(--text-meta);
  color: var(--color-terracotta);
  letter-spacing: var(--tracking-meta);
  text-transform: uppercase;
}

.section-header__title {
  font-family: var(--font-display);
  font-size: clamp(1.35rem, 2.8vw, 2.15rem);
  font-weight: 400;
  letter-spacing: var(--tracking-tight);
  word-break: break-word;
  overflow-wrap: break-word;
}

.section-header__link {
  font-family: var(--font-sans);
  font-size: var(--text-caption);
  font-weight: 600;
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--color-secondary);
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding-bottom: 2px;
  border-bottom: 1px solid transparent;
  transition: all var(--transition-fast);
}

.section-header__link:hover {
  color: var(--color-ink);
  border-bottom-color: var(--color-ink);
}

/* ==========================================================================
   Header & Masthead
   ========================================================================== */

.site-header {
  width: 100%;
  background-color: var(--bg-page);
  border-bottom: 1px solid var(--rule-standard);
  position: relative;
  z-index: 100;
}

/* Top Meta Bar */
.header-topbar {
  border-bottom: 1px solid var(--rule-subtle);
  padding: 0.45rem 0;
  font-size: var(--text-meta);
  color: var(--color-secondary);
  font-family: var(--font-sans);
}

.header-topbar__inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.header-topbar__info {
  display: flex;
  align-items: center;
  gap: 1.25rem;
}

.header-topbar__item {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

.header-topbar__dot {
  width: 4px;
  height: 4px;
  background-color: var(--color-muted);
  border-radius: 50%;
  display: inline-block;
}

.header-topbar__actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.header-topbar__search-hint {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.15rem 0.5rem;
  background-color: var(--bg-surface-warm);
  border: 1px solid var(--rule-subtle);
  border-radius: var(--radius-tag);
  font-size: 0.6875rem;
  color: var(--color-muted);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.header-topbar__search-hint:hover {
  color: var(--color-ink);
  border-color: var(--rule-standard);
}

@media (max-width: 768px) {
  .header-topbar {
    padding: 0.35rem 0;
  }
  .header-topbar__inner {
    justify-content: center;
    text-align: center;
    flex-wrap: wrap;
  }
  .header-topbar__info {
    justify-content: center;
    font-size: 0.6875rem;
    width: 100%;
    flex-wrap: wrap;
    gap: 0.5rem;
  }
  .header-topbar__item:nth-child(n+3),
  .header-topbar__dot {
    display: none;
  }
  .header-topbar__actions {
    display: none;
  }
}

/* Masthead Brand Section */
.header-masthead {
  padding: clamp(1.25rem, 2.5vw, 2.25rem) 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.masthead-brand {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-decoration: none;
  max-width: 100%;
  width: 100%;
}

.masthead-logo {
  font-family: var(--font-display);
  font-size: clamp(1.85rem, 7.5vw, 4.5rem);
  font-weight: 300;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-ink);
  line-height: 0.95;
  margin-left: 0.12em; /* optical balance for letter spacing */
  max-width: 100%;
  text-align: center;
  word-break: break-word;
}

.masthead-tagline {
  font-family: var(--font-sans);
  font-size: clamp(0.5625rem, 1.8vw, 0.775rem);
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-muted);
  margin-top: 0.65rem;
  text-align: center;
  max-width: 100%;
  word-wrap: break-word;
  overflow-wrap: break-word;
  line-height: 1.4;
}

@media (max-width: 480px) {
  .masthead-logo {
    font-size: clamp(1.6rem, 8vw, 2.25rem);
    letter-spacing: 0.08em;
    margin-left: 0.08em;
  }
  .masthead-tagline {
    font-size: 0.5625rem;
    letter-spacing: 0.08em;
    padding: 0 0.5rem;
  }
}

/* Primary Navigation Bar (Sticky) */
.header-nav {
  position: sticky;
  top: 0;
  background-color: rgba(248, 246, 240, 0.96);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-top: 1px solid var(--rule-subtle);
  border-bottom: 1px solid var(--rule-standard);
  z-index: 99;
}

.header-nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 52px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: clamp(0.75rem, 1.7vw, 1.75rem);
  overflow-x: auto;
  white-space: nowrap;
  scrollbar-width: none;
  -ms-overflow-style: none;
}

.nav-links::-webkit-scrollbar {
  display: none;
}

.nav-item {
  font-family: var(--font-sans);
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--color-secondary);
  text-decoration: none;
  padding: 0.4rem 0;
  position: relative;
  transition: color var(--transition-fast);
  white-space: nowrap;
}

.nav-item::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--color-forest);
  transition: width var(--transition-smooth);
}

.nav-item:hover,
.nav-item.active {
  color: var(--color-forest);
}

.nav-item:hover::after,
.nav-item.active::after {
  width: 100%;
}

.nav-controls {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-shrink: 0;
}

.nav-search-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.45rem 0.85rem;
  background: transparent;
  border: 1px solid var(--rule-subtle);
  border-radius: var(--radius-subtle);
  font-size: var(--text-caption);
  color: var(--color-secondary);
  transition: all var(--transition-fast);
}

.nav-search-btn:hover {
  border-color: var(--color-ink);
  color: var(--color-ink);
  background-color: var(--bg-surface-warm);
}

.nav-search-btn svg {
  width: 15px;
  height: 15px;
}

.mobile-menu-btn {
  display: none;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border: 1px solid var(--rule-subtle);
  border-radius: var(--radius-subtle);
  background: transparent;
  color: var(--color-ink);
}

@media (max-width: 1024px) {
  .nav-links {
    display: none;
  }
  .mobile-menu-btn {
    display: inline-flex;
  }
}

/* ==========================================================================
   Mobile Navigation Drawer (Full Screen Panel)
   ========================================================================== */

.mobile-nav-panel {
  position: fixed;
  inset: 0;
  background-color: var(--bg-page);
  z-index: 1000;
  display: flex;
  flex-direction: column;
  padding: var(--gutter);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity var(--transition-smooth), visibility var(--transition-smooth);
  overflow-y: auto;
}

.mobile-nav-panel.is-open {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

.mobile-nav-panel__header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--rule-standard);
}

.mobile-nav-panel__close {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: var(--text-caption);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
  color: var(--color-secondary);
  padding: 0.5rem;
}

.mobile-nav-panel__links {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  margin-top: 2rem;
  margin-bottom: 2.5rem;
}

.mobile-nav-link {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 5vw, 2.25rem);
  color: var(--color-ink);
  text-decoration: none;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--rule-subtle);
  transition: color var(--transition-fast);
}

.mobile-nav-link:hover {
  color: var(--color-terracotta);
}

.mobile-nav-link__num {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--color-muted);
}

.mobile-nav-panel__footer {
  margin-top: auto;
  padding-top: 2rem;
  border-top: 1px solid var(--rule-standard);
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.mobile-nav-panel__meta {
  font-size: var(--text-caption);
  color: var(--color-muted);
}

/* ==========================================================================
   Footer
   ========================================================================== */

.site-footer {
  background-color: var(--bg-dark);
  color: var(--color-light-ink);
  padding-top: clamp(3.5rem, 6vw, 5.5rem);
  padding-bottom: 2.5rem;
  border-top: 2px solid var(--rule-accent);
}

.footer-top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: clamp(1.5rem, 3.5vw, 3.5rem);
  padding-bottom: 3.5rem;
  border-bottom: 1px solid var(--rule-dark);
}

@media (max-width: 900px) {
  .footer-top {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 580px) {
  .footer-top {
    grid-template-columns: 1fr;
    gap: 2.25rem;
  }
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.footer-logo {
  font-family: var(--font-display);
  font-size: 2.2rem;
  font-weight: 300;
  letter-spacing: 0.16em;
  color: #FFFFFF;
  text-transform: uppercase;
}

.footer-description {
  font-size: var(--text-body-sm);
  color: var(--color-light-secondary);
  line-height: 1.65;
  max-width: 360px;
}

.footer-col__title {
  font-family: var(--font-sans);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: var(--tracking-meta);
  text-transform: uppercase;
  color: var(--color-terracotta);
  margin-bottom: 1.25rem;
}

.footer-col__list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.footer-col__link {
  font-size: var(--text-body-sm);
  color: var(--color-light-secondary);
  transition: color var(--transition-fast);
}

.footer-col__link:hover {
  color: #FFFFFF;
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1.25rem;
  padding-top: 2rem;
  font-size: var(--text-caption);
  color: var(--color-light-muted);
}

.footer-legal-notice {
  font-size: 0.75rem;
  color: var(--color-light-muted);
  line-height: 1.6;
  max-width: 800px;
  margin-top: 1rem;
  padding: 0.85rem;
  border-left: 2px solid var(--rule-dark);
  background-color: var(--bg-dark-surface);
}