/* ==========================================================================
   THEME 5: MONUMENTAL TYPOGRAPHY
   Aesthetic: Swiss International Typographic Style × Architectural Monograph
   Palette: Clean Cool White (#F8FAFC), Void Black (#090909), Royal Blue (#2563EB)
   ========================================================================== */

:root {
  --mt-bg: #F8FAFC;
  --mt-dark: #090909;
  --mt-dark-soft: #141414;
  --mt-border: #E2E8F0;
  --mt-border-dark: rgba(255, 255, 255, 0.12);
  
  --mt-text: #090909;
  --mt-text-muted: #64748B;
  --mt-cobalt: #2563EB;
  
  --mt-font-grotesk: 'Space Grotesk', -apple-system, BlinkMacSystemFont, 'Helvetica Neue', Arial, sans-serif;
  --mt-font-mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  background-color: var(--mt-bg);
  color: var(--mt-text);
  font-family: var(--mt-font-grotesk);
  -webkit-font-smoothing: antialiased;
}

body {
  background-color: var(--mt-bg);
  color: var(--mt-text);
  min-height: 100vh;
  overflow-x: hidden;
}

.mt-mono {
  font-family: var(--mt-font-mono);
  font-feature-settings: "tnum" 1;
}

/* Header */
.mt-header {
  position: sticky;
  top: 0;
  background: rgba(248, 250, 252, 0.94);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 2px solid var(--mt-dark);
  z-index: 100;
  padding: 18px 40px;
}

.mt-header-inner {
  max-width: 1440px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.mt-brand {
  font-size: 18px;
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--mt-dark);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 12px;
}

.mt-brand-badge {
  font-family: var(--mt-font-mono);
  font-size: 10px;
  background: var(--mt-dark);
  color: #FFFFFF;
  padding: 3px 8px;
}

.mt-nav {
  display: flex;
  align-items: center;
  gap: 36px;
}

.mt-nav-link {
  font-family: var(--mt-font-mono);
  font-size: 12px;
  text-transform: uppercase;
  color: var(--mt-text);
  text-decoration: none;
  font-weight: 700;
  position: relative;
}

.mt-nav-link:hover {
  color: var(--mt-cobalt);
}

.mt-action-btn {
  font-family: var(--mt-font-mono);
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  background: var(--mt-cobalt);
  color: #FFFFFF;
  padding: 10px 22px;
  border-radius: 0;
  text-decoration: none;
  transition: background 0.15s ease;
}

.mt-action-btn:hover {
  background: #1D4ED8;
}

/* Container */
.mt-container {
  max-width: 1440px;
  margin: 0 auto;
  padding: 0 40px;
}

/* MONUMENTAL HERO */
.mt-hero {
  padding: 80px 0 100px;
  border-bottom: 2px solid var(--mt-dark);
  position: relative;
}

.mt-meta-strip {
  font-family: var(--mt-font-mono);
  font-size: 11px;
  color: var(--mt-text-muted);
  display: flex;
  justify-content: space-between;
  margin-bottom: 40px;
  border-bottom: 1px solid var(--mt-border);
  padding-bottom: 12px;
}

.mt-words-container {
  display: flex;
  flex-direction: column;
}

.mt-word-row {
  position: relative;
  border-bottom: 1px solid var(--mt-border);
  cursor: pointer;
  overflow: hidden;
}

.mt-word-row:last-child {
  border-bottom: none;
}

.mt-huge-word {
  font-size: clamp(52px, 10.5vw, 150px);
  font-weight: 800;
  letter-spacing: -0.05em;
  line-height: 0.9;
  text-transform: uppercase;
  color: var(--mt-dark);
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1), color 0.2s ease;
  position: relative;
  z-index: 2;
  padding: 12px 0;
}

.mt-word-row:hover .mt-huge-word {
  color: #FFFFFF;
  transform: translateX(24px);
}

.mt-word-reveal-img {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 1;
  opacity: 0;
  filter: contrast(120%) grayscale(40%);
  transition: opacity 0.3s ease;
}

.mt-word-row:hover .mt-word-reveal-img {
  opacity: 1;
}

.mt-word-subtext {
  position: absolute;
  right: 0;
  bottom: 24px;
  font-family: var(--mt-font-mono);
  font-size: 12px;
  font-weight: 700;
  color: var(--mt-cobalt);
  z-index: 2;
  opacity: 0;
  transition: opacity 0.2s ease;
}

.mt-word-row:hover .mt-word-subtext {
  opacity: 1;
  color: #FFFFFF;
}

/* Hard Section Divider */
.mt-black-section {
  background: var(--mt-dark);
  color: #FFFFFF;
  padding: 120px 0;
  border-bottom: 2px solid var(--mt-dark);
}

.mt-section-title-mono {
  font-family: var(--mt-font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--mt-cobalt);
  margin-bottom: 24px;
}

.mt-manifesto-heading {
  font-size: clamp(36px, 6vw, 80px);
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 1.05;
  margin-bottom: 40px;
}

.mt-manifesto-heading span {
  color: var(--mt-cobalt);
}

.mt-manifesto-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  margin-top: 60px;
  border-top: 1px solid var(--mt-border-dark);
  padding-top: 40px;
}

.mt-manifesto-col h4 {
  font-family: var(--mt-font-mono);
  font-size: 13px;
  font-weight: 700;
  color: #FFFFFF;
  margin-bottom: 12px;
  letter-spacing: 0.04em;
}

.mt-manifesto-col p {
  color: #9CA3AF;
  font-size: 14px;
  line-height: 1.65;
}

.mt-stats-strip {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  margin-top: 50px;
  padding: 32px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--mt-border-dark);
}

.mt-stat-val {
  font-size: clamp(36px, 5vw, 60px);
  font-weight: 800;
  color: var(--mt-cobalt);
  line-height: 1;
  margin-bottom: 8px;
}

.mt-stat-desc {
  font-family: var(--mt-font-mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: #AAAAAA;
}

.mt-quote-card {
  margin-top: 20px;
  padding: 16px;
  background: var(--mt-bg);
  border-left: 3px solid var(--mt-cobalt);
  font-style: italic;
  font-size: 13px;
  color: #333333;
  line-height: 1.6;
}

.mt-quote-author {
  font-style: normal;
  font-weight: 700;
  font-size: 11px;
  color: var(--mt-dark);
  margin-top: 8px;
  font-family: var(--mt-font-mono);
}

/* MONUMENTAL PORTFOLIO POSTERS */
.mt-posters-section {
  padding: 120px 0;
  border-bottom: 2px solid var(--mt-dark);
}

.mt-poster-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
}

.mt-poster {
  border: 2px solid var(--mt-dark);
  padding: 36px;
  background: #FFFFFF;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: 520px;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.mt-poster:hover {
  transform: translate(-4px, -4px);
  box-shadow: 8px 8px 0px var(--mt-dark);
}

.mt-poster-num {
  font-family: var(--mt-font-mono);
  font-size: 16px;
  font-weight: 800;
  color: var(--mt-cobalt);
  margin-bottom: 20px;
}

.mt-poster-name {
  font-size: 36px;
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.1;
  color: var(--mt-dark);
  margin-bottom: 12px;
}

.mt-poster-sector {
  font-family: var(--mt-font-mono);
  font-size: 12px;
  color: var(--mt-text-muted);
  text-transform: uppercase;
  margin-bottom: 24px;
}

.mt-poster-img {
  width: 100%;
  height: 220px;
  object-fit: cover;
  border: 1px solid var(--mt-border);
  margin-bottom: 24px;
  filter: grayscale(100%);
  transition: filter 0.3s ease;
}

.mt-poster:hover .mt-poster-img {
  filter: grayscale(0%);
}

.mt-poster-desc {
  font-size: 14px;
  line-height: 1.6;
  color: #333333;
  margin-bottom: 24px;
}

.mt-poster-patent-box {
  background: var(--mt-bg);
  border-left: 3px solid var(--mt-cobalt);
  padding: 10px 14px;
  font-family: var(--mt-font-mono);
  font-size: 11px;
  font-weight: 700;
  color: var(--mt-dark);
}

/* HISTORICAL SECTION: BOSTON TIME CAPSULE */
.mt-capsule-block {
  padding: 120px 0;
  background: var(--mt-bg);
  border-bottom: 2px solid var(--mt-dark);
}

.mt-capsule-layout {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 80px;
  align-items: center;
}

.mt-capsule-heading {
  font-size: clamp(32px, 5vw, 64px);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.1;
  margin-bottom: 24px;
}

.mt-capsule-body {
  font-size: 17px;
  line-height: 1.7;
  color: #333333;
  margin-bottom: 32px;
}

/* GIANT TYPOGRAPHIC FINALE */
.mt-finale-section {
  background: var(--mt-dark);
  color: #FFFFFF;
  padding: 140px 0 100px;
  text-align: left;
}

.mt-finale-huge {
  font-size: clamp(48px, 9vw, 130px);
  font-weight: 800;
  letter-spacing: -0.05em;
  line-height: 0.95;
  text-transform: uppercase;
  margin-bottom: 48px;
}

.mt-finale-link {
  font-family: var(--mt-font-mono);
  font-size: clamp(20px, 3.5vw, 44px);
  color: var(--mt-cobalt);
  text-decoration: none;
  font-weight: 700;
  transition: color 0.15s ease;
  display: inline-block;
}

.mt-finale-link:hover {
  color: #FFFFFF;
}

/* Footer */
.mt-footer {
  background: var(--mt-dark);
  color: #666666;
  border-top: 1px solid var(--mt-border-dark);
  padding: 40px 0;
  font-family: var(--mt-font-mono);
  font-size: 11px;
}

.mt-footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 20px;
}

@media (max-width: 992px) {
  .mt-manifesto-grid {
    grid-template-columns: 1fr;
  }
  .mt-poster-grid {
    grid-template-columns: 1fr;
  }
  .mt-capsule-layout {
    grid-template-columns: 1fr;
  }
  .mt-header {
    padding: 16px 20px;
  }
  .mt-container {
    padding: 0 20px;
  }
}