/* === TOKENS === */
:root {
  --black: #0A0A0A;
  --white: #FFFFFF;
  --off-white: #F7F7F7;
  --mid: #6B6B6B;
  --border: #E8E8E8;
  --font-display: 'Cormorant Garamond', Georgia, serif;
  --font-body: 'Inter', system-ui, sans-serif;
  --font-mono: 'DM Mono', monospace;
  --max: 1400px;
  --transition: 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

/* === DARK MODE === */
[data-theme="dark"] {
  --black: #F0F0F0;
  --white: #0D0D0D;
  --off-white: #1A1A1A;
  --mid: #888888;
  --border: #2A2A2A;
}
[data-theme="dark"] nav {
  background: rgba(13,13,13,0.96);
}
[data-theme="dark"] .mobile-menu {
  background: var(--white);
}
[data-theme="dark"] .card-image {
  background: #1A1A1A;
}

/* === THEME TOGGLE === */
.theme-toggle {
  background: none;
  border: 1.5px solid var(--border);
  border-radius: 50%;
  cursor: pointer;
  padding: 6px;
  width: 32px;
  height: 32px;
  color: var(--mid);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: border-color var(--transition), color var(--transition);
  flex-shrink: 0;
}
.theme-toggle:hover {
  border-color: var(--black);
  color: var(--black);
}
.icon-sun { display: none; }
.icon-moon { display: flex; }
[data-theme="dark"] .icon-sun { display: flex; }
[data-theme="dark"] .icon-moon { display: none; }

/* === RESET === */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--white);
  color: var(--black);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }

/* === TYPOGRAPHY === */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 400;
  line-height: 1.15;
  letter-spacing: -0.02em;
}
h1 { font-size: clamp(2.4rem, 5vw, 4.2rem); }
h2 { font-size: clamp(1.8rem, 3vw, 2.8rem); }
h3 { font-size: clamp(1.2rem, 2vw, 1.6rem); }
p { color: var(--mid); max-width: 68ch; }
strong { color: var(--black); font-weight: 600; }

/* === LAYOUT === */
.container { max-width: var(--max); margin: 0 auto; padding: 0 40px; }
@media (max-width: 768px) { .container { padding: 0 24px; } }

/* === NAV === */
nav {
  position: fixed; top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(255,255,255,0.96);
  backdrop-filter: blur(12px);
  
}
.nav-inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 40px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav-wordmark {
  font-family: var(--font-body);
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--black);
}
/* Nav links hidden — navigation removed */
.nav-links { display: none; }
.burger { display: none !important; }
.mobile-menu { display: none !important; }
@media (max-width: 600px) {
  .nav-inner { padding: 0 24px; }
}

/* === PAGE WRAPPER === */
.page { padding-top: 64px; min-height: 100vh; }

/* === HOME HERO === */
.home-hero {
  padding: 80px 0 60px;
  
}
.home-hero .container {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.hero-eyebrow {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--mid);
}
.home-hero h1 { max-width: 14ch; }
.hero-sub {
  font-size: 1.05rem;
  color: var(--mid);
  max-width: 52ch;
  line-height: 1.7;
}

/* === WORK GRID === */
.work-grid { padding: 48px 0; }
.grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}
@media (max-width: 720px) { .grid { grid-template-columns: 1fr; } }

.work-card {
  position: relative;
  overflow: hidden;
  cursor: pointer;
  display: block;
}
.work-card:hover .card-image img { transform: scale(1.03); }
.card-image {
  position: relative;
  aspect-ratio: 16/9;
  overflow: hidden;
  background: var(--off-white);
}
.card-image img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 0.6s cubic-bezier(0.25,0.46,0.45,0.94);
}
.card-body { padding: 28px 32px 36px; }
.card-company {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--mid);
  margin-bottom: 8px;
}
.card-title {
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 400;
  line-height: 1.2;
  color: var(--black);
  margin-bottom: 10px;
}
.card-desc {
  font-size: 0.88rem;
  color: var(--mid);
  line-height: 1.6;
  max-width: none;
}
.card-arrow {
  display: inline-block;
  margin-top: 16px;
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  font-weight: 600;
  color: var(--black);
  border-bottom: 1px solid var(--black);
  padding-bottom: 2px;
  transition: opacity var(--transition);
}
.work-card:hover .card-arrow { opacity: 0.5; }

/* === CASE STUDY PAGE === */
.case-hero {
  padding: 72px 0 56px;
  
}
.case-eyebrow {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--mid);
  margin-bottom: 20px;
}
.case-hero h1 { margin-bottom: 20px; }
.case-hero .lead {
  font-size: 1.15rem;
  color: var(--mid);
  max-width: 60ch;
  line-height: 1.7;
}
.case-cover {
  margin-top: 48px;
  overflow: hidden;
}
.case-cover img {
  width: 100%;
  max-height: 540px;
  object-fit: cover;
}
.nda-note {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 24px;
  padding: 10px 16px;
  background: var(--off-white);
  border-left: 3px solid var(--black);
  font-size: 0.82rem;
  color: var(--mid);
  border-radius: 0 4px 4px 0;
}

/* === CASE STUDY BODY === */
.case-body { padding: 72px 0; }
.case-section {
  max-width: 760px;
  margin: 0 auto 64px;
}
.case-section:last-child { margin-bottom: 0; }
.case-section h3 {
  font-family: var(--font-display);
  font-size: 1.5rem;
  margin-bottom: 20px;
  color: var(--black);
}
.case-section p { margin-bottom: 16px; }
.case-section p:last-child { margin-bottom: 0; }
.case-image { margin: 40px 0; }
.case-image img {
  width: 100%;
}
.case-image figcaption {
  margin-top: 12px;
  font-size: 0.8rem;
  color: var(--mid);
  font-style: italic;
}
.case-section ul {
  margin: 16px 0;
  padding-left: 0;
  list-style: none;
}
.case-section ul li {
  position: relative;
  padding-left: 20px;
  margin-bottom: 10px;
  font-size: 0.95rem;
  color: var(--mid);
}
.case-section ul li::before {
  content: '—';
  position: absolute;
  left: 0;
  color: var(--black);
}

/* === CASE NAV === */
.case-nav {
  padding: 40px 0 48px;
}
.case-nav .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
}
.case-nav-link { display: flex; flex-direction: column; gap: 6px; }
.case-nav-link.next { text-align: right; }
.case-nav-label {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--mid);
}
.case-nav-title {
  font-family: var(--font-display);
  font-size: 1.2rem;
  color: var(--black);
  transition: opacity var(--transition);
}
.case-nav-link:hover .case-nav-title { opacity: 0.5; }

/* === ABOUT PAGE === */
.about-page { padding: 72px 0; }
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1.8fr;
  gap: 72px;
  align-items: start;
}
@media (max-width: 800px) {
  .about-grid { grid-template-columns: 1fr; gap: 40px; }
}
.about-photo { position: sticky; top: 88px; }
.about-photo img { width: 100%; }
.about-content h2 { margin-bottom: 32px; }
.about-content p { margin-bottom: 20px; font-size: 1rem; }
.about-flex {
  margin-top: 48px;
  padding-top: 40px;
  border-top: 1px solid var(--border);
}
.about-flex h3 { margin-bottom: 16px; font-size: 1.1rem; }
.feature-card {
  margin-top: 24px;
  padding: 24px;
  background: var(--off-white);
  border-left: 3px solid var(--black);
}
.feature-card p { font-size: 0.9rem; margin-bottom: 0; }
.feature-link {
  display: inline-block;
  margin-top: 12px;
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--black);
  border-bottom: 1px solid var(--black);
  padding-bottom: 1px;
  transition: opacity var(--transition);
}
.feature-link:hover { opacity: 0.5; }

footer {
  padding: 20px 0;
}
.footer-inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 24px;
}
@media (max-width: 600px) {
  .footer-inner { flex-direction: column; align-items: center; padding: 0 24px; }
}
.footer-copy { font-size: 0.8rem; color: var(--mid); max-width: none; }

/* === SCROLL REVEAL === */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal.visible { opacity: 1; transform: translateY(0); }

/* === NAV SCROLL HIDE — top nav only === */
body > nav {
  transition: transform 0.3s ease;
}
body > nav.nav-hidden {
  transform: translateY(-100%);
}

/* === HAMBURGER === */
.burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.burger span {
  display: block;
  width: 22px;
  height: 1.5px;
  background: var(--black);
  transition: all 0.3s ease;
}
.burger[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(6.5px) rotate(45deg);
}
.burger[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}
.burger[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-6.5px) rotate(-45deg);
}

/* Mobile menu */
.mobile-menu {
  display: none;
  position: fixed;
  top: 64px;
  left: 0; right: 0;
  background: var(--white);
  border-bottom: 1px solid var(--border);
  padding: 24px;
  flex-direction: column;
  gap: 24px;
  z-index: 99;
}
.mobile-menu.open {
  display: flex;
}
.mobile-menu a {
  font-size: 1rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--black);
}

@media (max-width: 600px) {
  .nav-links { display: none; }
  .burger { display: flex; }
}

/* === CARD BODY NO LEFT PADDING === */
.card-body {
  padding: 20px 24px 28px 0;
}

/* === FULL SCREEN MOBILE MENU === */
.mobile-menu {
  display: none;
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: var(--white);
  padding: 120px 40px 40px;
  flex-direction: column;
  gap: 32px;
  z-index: 98;
  justify-content: flex-start;
}
.mobile-menu.open {
  display: flex;
}
.mobile-menu a {
  font-family: var(--font-display);
  font-size: 3rem;
  font-weight: 400;
  letter-spacing: -0.02em;
  color: var(--black);
  text-transform: none;
  border-bottom: 1px solid var(--border);
  padding-bottom: 24px;
}

/* === MOBILE MENU OVERRIDES === */
.mobile-menu a {
  font-family: var(--font-body);
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  border-bottom: none;
  padding-bottom: 0;
}

/* Clean up burger dots */
.burger span {
  border-radius: 0;
}

/* === PROGRESS BAR NAV === */
.case-progress {
  position: fixed;
  top: 64px;
  left: 0; right: 0;
  z-index: 99;
  background: var(--white);
  border-bottom: 1px solid var(--border);
}
.progress-bar-track {
  height: 2px;
  background: var(--border);
}
.progress-bar-fill {
  height: 2px;
  background: var(--black);
  width: 0%;
  transition: width 0.1s linear;
}
.progress-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 40px;
}
.progress-back {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--black);
  transition: opacity 0.2s;
}
.progress-back:hover { opacity: 0.5; }
.progress-count {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  color: var(--mid);
}
.has-progress-nav { padding-top: 108px; }
@media (max-width: 600px) {
  .progress-nav { padding: 10px 24px; }
}

/* === BURGER X FIX — hide extra lines === */
.burger[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(6.5px) rotate(45deg);
  width: 22px;
}
.burger[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
  width: 0;
}
.burger[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-6.5px) rotate(-45deg);
  width: 22px;
}

/* === ABOUT PAGE MOBILE FIX === */
@media (max-width: 800px) {
  .about-photo {
    position: static;
    max-width: 280px;
  }
}

/* === CASE NAV MOBILE — bottom only === */
@media (max-width: 600px) {
  .case-nav .container {
    flex-direction: column;
    align-items: flex-start;
    gap: 32px;
  }
  .case-nav-link.next {
    text-align: left;
  }
}

/* === CASE STUDY — NAV + PROGRESS STACKED === */
.case-progress {
  top: 64px;
}
.has-progress-nav {
  padding-top: 128px;
}