@import url('https://fonts.googleapis.com/css2?family=Cormorant+Garamond:ital,wght@0,300;0,400;0,500;0,600;1,400&family=DM+Sans:ital,wght@0,300;0,400;0,500;1,400&display=swap');

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

:root {
  --charcoal: #2C2C2C; --cream: #F5F0E8; --warm-stone: #C4B5A0;
  --muted-brass: #B8A07A; --warm-gray: #8B7D6B; --deep-black: #1A1A1A;
  --font-display: 'Cormorant Garamond', Georgia, 'Times New Roman', serif;
  --font-body: 'DM Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  --max-width: 1080px; --gutter: 3rem;
  font-size: 16px;
}

html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; }
body { font-family: var(--font-body); font-weight: 400; line-height: 1.7; color: var(--charcoal); background-color: var(--cream); overflow-x: hidden; }
::selection { background-color: var(--warm-stone); color: var(--charcoal); }
a { color: inherit; text-decoration: none; }

.site-nav { position: fixed; top: 0; left: 0; right: 0; z-index: 100; padding: 2rem var(--gutter); display: flex; justify-content: space-between; align-items: center; transition: all 0.5s cubic-bezier(0.22, 1, 0.36, 1); border-bottom: 1px solid transparent; }
.site-nav.scrolled { padding: 1.1rem var(--gutter); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); }
.page-dark .site-nav.scrolled { background-color: rgba(26, 26, 26, 0.92); }
.page-light .site-nav.scrolled:not(.nav-dark) { background-color: rgba(245, 240, 232, 0.95); border-bottom-color: rgba(196, 181, 160, 0.25); }
.page-light .site-nav.scrolled.nav-dark { background-color: rgba(44, 44, 44, 0.92); border-bottom-color: transparent; }
.nav-brand { display: flex; align-items: center; gap: 0.7rem; transition: opacity 0.3s ease; }
.nav-brand:hover { opacity: 0.8; }
.nav-brand-symbol { display: flex; align-items: center; }
.nav-wordmark { font-family: var(--font-display); font-weight: 500; font-size: 1.05rem; letter-spacing: 0.25em; text-transform: uppercase; transition: color 0.4s ease; }
.page-dark .nav-wordmark { color: var(--cream); }
.page-light .nav-wordmark { color: var(--charcoal); }
.site-nav.nav-dark .nav-wordmark { color: var(--cream); }
.nav-links { display: flex; gap: 2.5rem; list-style: none; }
.nav-links a { font-family: var(--font-body); font-size: 0.72rem; font-weight: 500; letter-spacing: 0.2em; text-transform: uppercase; opacity: 0.6; transition: opacity 0.4s ease, color 0.4s ease; position: relative; }
.nav-links a::after { content: ''; position: absolute; bottom: -4px; left: 0; width: 0; height: 1px; background-color: var(--warm-stone); transition: width 0.4s cubic-bezier(0.22, 1, 0.36, 1); }
.nav-links a:hover { opacity: 1; }
.nav-links a:hover::after { width: 100%; }
.nav-links a.active { opacity: 1; }
.page-dark .nav-links a { color: var(--cream); }
.page-light .nav-links a { color: var(--charcoal); }
.site-nav.nav-dark .nav-links a { color: var(--cream); }
.nav-toggle { display: none; background: none; border: none; cursor: pointer; padding: 0.5rem; z-index: 101; }
.nav-toggle span { display: block; width: 24px; height: 1.5px; margin: 6px 0; transition: all 0.4s cubic-bezier(0.22, 1, 0.36, 1); }
.page-dark .nav-toggle span { background-color: var(--cream); }
.page-light .nav-toggle span { background-color: var(--charcoal); }
.site-nav.nav-dark .nav-toggle span { background-color: var(--cream); }
.nav-toggle.open span:nth-child(1) { transform: rotate(45deg) translate(5px, 6px); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: rotate(-45deg) translate(5px, -6px); }

.hero { position: relative; min-height: 100vh; display: flex; flex-direction: column; justify-content: center; align-items: center; text-align: center; padding: 10rem var(--gutter) 8rem; overflow: hidden; }
.hero-dark { background-color: var(--charcoal); color: var(--cream); }
.hero-light { background-color: var(--cream); color: var(--charcoal); }
.hero-watermark { position: absolute; top: 45%; left: 50%; transform: translate(-50%, -50%); opacity: 0.03; pointer-events: none; will-change: transform; }
.hero-symbol { position: relative; z-index: 2; margin-bottom: 2.5rem; opacity: 0; transform: translateY(20px); animation: heroReveal 1.4s cubic-bezier(0.22, 1, 0.36, 1) 0.3s forwards; }
.hero-wordmark { position: relative; z-index: 2; font-family: var(--font-display); font-weight: 400; font-size: 3.2rem; letter-spacing: 0.32em; text-transform: uppercase; line-height: 1.15; margin-bottom: 3rem; opacity: 0; transform: translateY(20px); animation: heroReveal 1.4s cubic-bezier(0.22, 1, 0.36, 1) 0.6s forwards; }
.hero-wordmark-line2 { display: block; }
.hero-sub-brand { position: relative; z-index: 2; font-family: var(--font-body); font-size: 0.72rem; font-weight: 400; letter-spacing: 0.35em; text-transform: uppercase; color: var(--warm-stone); margin-bottom: 3rem; opacity: 0; animation: heroReveal 1.4s cubic-bezier(0.22, 1, 0.36, 1) 0.8s forwards; }
.page-light .hero-sub-brand { color: var(--warm-gray); }
.hero-thesis { position: relative; z-index: 2; max-width: 640px; font-family: var(--font-body); font-size: 1.02rem; font-weight: 300; line-height: 1.9; letter-spacing: 0.01em; }
.hero-thesis p { opacity: 0; transform: translateY(16px); }
.hero-thesis p:nth-child(1) { animation: heroReveal 1.4s cubic-bezier(0.22, 1, 0.36, 1) 1.0s forwards; }
.hero-thesis p:nth-child(2) { animation: heroReveal 1.4s cubic-bezier(0.22, 1, 0.36, 1) 1.3s forwards; }
.hero-thesis p + p { margin-top: 1.4rem; }
.hero-tagline { position: relative; z-index: 2; font-family: var(--font-display); font-size: 1.6rem; font-weight: 300; letter-spacing: 0.04em; line-height: 1.5; max-width: 600px; opacity: 0; animation: heroReveal 1.4s cubic-bezier(0.22, 1, 0.36, 1) 0.8s forwards; }
.scroll-indicator { position: absolute; bottom: 3rem; left: 50%; transform: translateX(-50%); z-index: 2; opacity: 0; animation: heroReveal 1.4s ease 2s forwards; }
.scroll-indicator::after { content: ''; display: block; width: 1px; height: 40px; background-color: var(--warm-stone); margin: 0 auto; opacity: 0.5; animation: scrollPulse 2.5s ease-in-out infinite; }

.hero-page { min-height: 50vh; padding: 10rem var(--gutter) 5rem; }
.hero-page .hero-wordmark { font-size: 2.4rem; margin-bottom: 0.6rem; }

.threshold-dark-to-cream { 
      height: 200px;
      background: linear-gradient(to bottom,
        #2C2C2C 0%, #302D28 5%, #352F2B 10%, #3C352F 15%,
        #453C34 20%, #50453B 25%, #5C4F42 30%, #6B5E4F 35%,
        #7A6C5C 40%, #8B7D6B 45%, #9C8E7C 50%, #ADA08E 55%,
        #C4B5A0 60%, #CCBDA9 64%, #D4C4B0 68%, #DACBB8 72%,
        #E0D3C2 76%, #E6DACB 80%, #EBE1D5 85%, #F0E8DE 90%,
        #F3ECE3 95%, #F5F0E8 100%
      ); }
.threshold-cream-to-dark { 
      height: 200px;
      background: linear-gradient(to bottom,
        #F5F0E8 0%, #F3ECE3 5%, #F0E8DE 10%, #EBE1D5 15%,
        #E6DACB 20%, #E0D3C2 24%, #DACBB8 28%, #D4C4B0 32%,
        #CCBDA9 36%, #C4B5A0 40%, #ADA08E 45%, #9C8E7C 50%,
        #8B7D6B 55%, #7A6C5C 60%, #6B5E4F 65%, #5C4F42 70%,
        #50453B 75%, #453C34 80%, #3C352F 85%, #352F2B 90%,
        #302D28 95%, #2C2C2C 100%
      ); }

.section { padding: 6rem var(--gutter); position: relative; }
.section-cream { background-color: var(--cream); color: var(--charcoal); }
.section-dark { background-color: var(--charcoal); color: var(--cream); }
.section-dark .section-label { color: var(--warm-stone); }
.section-dark .section-body { color: rgba(245, 240, 232, 0.88); }
.section-inner { max-width: var(--max-width); margin: 0 auto; }
.section-label { font-family: var(--font-body); font-size: 0.68rem; font-weight: 500; letter-spacing: 0.3em; text-transform: uppercase; color: var(--warm-stone); margin-bottom: 2rem; }
.section-body { font-size: 1rem; font-weight: 300; line-height: 1.9; max-width: 720px; letter-spacing: 0.005em; }
.section-body p + p { margin-top: 1.6rem; }
.section-centered { text-align: center; }
.section-centered .section-body { margin-left: auto; margin-right: auto; }

.reveal { opacity: 0; transform: translateY(28px); transition: opacity 0.9s cubic-bezier(0.22, 1, 0.36, 1), transform 0.9s cubic-bezier(0.22, 1, 0.36, 1); }
.reveal.visible { opacity: 1; transform: translateY(0); }
.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.25s; }
.reveal-delay-3 { transition-delay: 0.4s; }

.divider { width: 60px; height: 1px; background-color: var(--warm-stone); margin: 3.5rem 0; }
.section-centered .divider { margin-left: auto; margin-right: auto; }
.section-divider { max-width: var(--max-width); margin: 0 auto; padding: 0 var(--gutter); }
.section-divider-line { height: 1px; background-color: var(--warm-stone); opacity: 0.35; transform: scaleX(0); transform-origin: left; transition: transform 1.2s cubic-bezier(0.22, 1, 0.36, 1); }
.section-divider-line.visible { transform: scaleX(1); }
.section-dark .section-divider { background-color: var(--charcoal); }
.section-dark .section-divider-line { opacity: 0.2; }

.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 5rem; }
.col-block { padding-top: 2rem; position: relative; }
.col-block::before { content: ''; position: absolute; top: 0; left: 0; width: 0; height: 1px; background-color: var(--warm-stone); transition: width 1s cubic-bezier(0.22, 1, 0.36, 1); }
.col-block.visible::before { width: 100%; }
.col-title { font-family: var(--font-display); font-size: 1.5rem; font-weight: 400; letter-spacing: 0.06em; margin-bottom: 1.2rem; }
.col-text { font-size: 0.95rem; font-weight: 300; line-height: 1.85; letter-spacing: 0.005em; }
.col-link { display: inline-flex; align-items: center; gap: 0.5rem; margin-top: 1.8rem; font-size: 0.72rem; font-weight: 500; letter-spacing: 0.22em; text-transform: uppercase; color: var(--warm-stone); transition: all 0.4s ease; }
.col-link-arrow { display: inline-block; width: 20px; height: 1px; background-color: var(--warm-stone); position: relative; transition: width 0.4s cubic-bezier(0.22, 1, 0.36, 1); }
.col-link-arrow::after { content: ''; position: absolute; right: 0; top: -3px; width: 7px; height: 7px; border-right: 1px solid var(--warm-stone); border-top: 1px solid var(--warm-stone); transform: rotate(45deg); }
.col-link:hover { color: var(--muted-brass); }
.col-link:hover .col-link-arrow { width: 32px; background-color: var(--muted-brass); }
.col-link:hover .col-link-arrow::after { border-color: var(--muted-brass); }

.contact-section { text-align: center; }
.contact-line { font-family: var(--font-body); font-size: 0.92rem; font-weight: 300; line-height: 1.8; color: var(--warm-gray); margin-bottom: 3.5rem; max-width: 520px; margin-left: auto; margin-right: auto; }
.contact-email { font-family: var(--font-display); font-size: 1.5rem; font-weight: 400; letter-spacing: 0.05em; color: var(--charcoal); transition: color 0.3s ease; display: inline-block; border-bottom: 1px solid transparent; }
.contact-email:hover { color: var(--muted-brass); border-bottom-color: var(--muted-brass); }
.contact-domain { margin-top: 4rem; font-family: var(--font-body); font-size: 0.72rem; font-weight: 500; letter-spacing: 0.2em; text-transform: uppercase; color: var(--warm-stone); }

.site-footer { padding: 3.5rem var(--gutter); border-top: 1px solid rgba(196, 181, 160, 0.2); display: flex; justify-content: space-between; align-items: center; color: var(--warm-gray); }
.page-dark .site-footer { background-color: var(--cream); }
.page-light .site-footer { background-color: var(--cream); }
.footer-dark { background-color: var(--charcoal) !important; border-top-color: rgba(196, 181, 160, 0.15) !important; }
.footer-left { display: flex; align-items: center; gap: 1.5rem; }
.footer-symbol svg { opacity: 0.35; }
.footer-text { font-size: 0.72rem; letter-spacing: 0.1em; }
.footer-right { font-size: 0.68rem; letter-spacing: 0.06em; }

@keyframes heroReveal { from { opacity: 0; transform: translateY(20px); } to { opacity: 1; transform: translateY(0); } }
@keyframes scrollPulse { 0% { opacity: 0.15; transform: scaleY(0.6); transform-origin: top; } 50% { opacity: 0.5; transform: scaleY(1); transform-origin: top; } 100% { opacity: 0.15; transform: scaleY(0.6); transform-origin: top; } }

@media (max-width: 900px) { .two-col { grid-template-columns: 1fr; gap: 3rem; } }
@media (max-width: 768px) {
  :root { --gutter: 1.5rem; }
  .hero { padding: 8rem var(--gutter) 6rem; } .hero-wordmark { font-size: 2.4rem; letter-spacing: 0.25em; }
  .hero-thesis { font-size: 0.92rem; } .hero-tagline { font-size: 1.3rem; }
  .hero-page .hero-wordmark { font-size: 2rem; } .hero-watermark svg { height: 320px !important; }
  .threshold-dark-to-cream, .threshold-cream-to-dark { height: 140px; }
  .section { padding: 4.5rem var(--gutter); } .section-body { font-size: 0.94rem; } .col-title { font-size: 1.3rem; }
  .contact-email { font-size: 1.2rem; }
  .nav-toggle { display: block; }
  .nav-links { position: fixed; top: 0; right: 0; bottom: 0; width: 300px; flex-direction: column; justify-content: center; padding: 2rem 2.5rem; gap: 2rem; transform: translateX(100%); transition: transform 0.5s cubic-bezier(0.22, 1, 0.36, 1); }
  .page-dark .nav-links { background-color: var(--deep-black); }
  .page-light .nav-links { background-color: var(--cream); }
  .nav-links.open { transform: translateX(0); } .nav-links a { font-size: 0.85rem; opacity: 1; }
  .site-footer { flex-direction: column; gap: 1rem; text-align: center; }
}
@media (max-width: 480px) { .hero-wordmark { font-size: 1.8rem; letter-spacing: 0.18em; margin-bottom: 2.5rem; } .hero-page .hero-wordmark { font-size: 1.6rem; } .hero { padding: 7rem var(--gutter) 5rem; } .hero-page { min-height: 40vh; } .contact-email { font-size: 1rem; } }