/* ============================================================
   ULISES TORRES — Portfolio
   Design System · CSS
   ============================================================ */

/* 0. Google Fonts — loaded via <link rel="preconnect"> + <link rel="stylesheet">
      in the HTML <head> (see docs/README). No @import: it blocks the critical
      rendering path and delays first paint. */

/* 1. Custom Properties */
:root {
  --black:     #191919;
  --burgundy:  #4A2230;
  --brick:     #7E1C1B;
  --cream:     #FDF2EB;
  --lavender:  #5C567A;
  --white:     #FFFFFF;

  --font-display: "Times New Roman", Times, Georgia, serif;
  --font-body:    "Jost", "Work Sans", Arial, sans-serif;

  --nav-height: 72px;

  --spacing-xs:  0.5rem;
  --spacing-sm:  1rem;
  --spacing-md:  2rem;
  --spacing-lg:  4rem;
  --spacing-xl:  8rem;

  --track-label:  0.15em;
  --track-wider:  0.22em;

  /* Layout tokens */
  --container-max: 1440px;
  --content-max:   1200px;
  --text-max:      720px;

  /* Focus ring */
  --focus-ring: 0 0 0 3px rgba(253, 242, 235, 0.5);

  /* z-index scale */
  --z-nav:          100;
  --z-mobile-nav:   200;
  --z-overlay:      300;
  --z-modal:        400;

  --ease: cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --transition: 0.4s var(--ease);
}

/* 2. Reset */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button { background: none; border: none; cursor: pointer; font: inherit; }

/* Accessibility: skip link */
.skip-link {
  position: absolute;
  top: -100px;
  left: var(--spacing-sm);
  z-index: 1000;
  background-color: var(--cream);
  color: var(--black);
  padding: 0.75rem 1.25rem;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: var(--track-label);
  text-transform: uppercase;
  transition: top var(--transition);
}
.skip-link:focus {
  top: var(--spacing-sm);
}

/* Accessibility: consistent focus ring on interactive elements */
a:focus-visible,
button:focus-visible,
.project-card:focus-visible {
  outline: 2px solid var(--cream);
  outline-offset: 3px;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * , *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* 3. Base Typography */
body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.65;
  background-color: var(--black);
  color: var(--cream);
}

.eyebrow {
  font-family: var(--font-body);
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: var(--track-label);
  text-transform: uppercase;
}

h1, h2, h3 {
  font-family: var(--font-display);
  font-style: italic;
  font-weight: normal;
  line-height: 1.05;
}

p { max-width: 60ch; }


/* ============================================================
   4. Navigation
   ============================================================ */

.site-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 900;
  height: var(--nav-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--spacing-md);
  transition: background var(--transition), backdrop-filter var(--transition);
}

.site-nav.scrolled {
  background: rgba(25, 25, 25, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.nav__logo {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1.25rem;
  color: var(--cream);
  letter-spacing: 0.02em;
}

.nav__links {
  display: flex;
  gap: var(--spacing-md);
  align-items: center;
}

.nav__links a {
  font-family: var(--font-body);
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: var(--track-label);
  text-transform: uppercase;
  color: var(--cream);
  opacity: 0.7;
  transition: opacity var(--transition);
}

.nav__links a:hover { opacity: 1; }

/* Hamburger */
.nav__toggle {
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 4px;
}
.nav__toggle span {
  display: block;
  width: 24px;
  height: 1.5px;
  background: var(--cream);
  transition: var(--transition);
}
.nav__toggle.open span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.nav__toggle.open span:nth-child(2) { opacity: 0; }
.nav__toggle.open span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

.nav__mobile {
  display: none;
  position: fixed;
  inset: 0;
  background: var(--black);
  z-index: 800;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-lg);
}
.nav__mobile.open { display: flex; }
.nav__mobile a {
  font-family: var(--font-display);
  font-style: italic;
  font-size: clamp(2rem, 6vw, 4rem);
  color: var(--cream);
}


/* ============================================================
   5. Hero — Home
   ============================================================ */

.hero {
  min-height: 100svh;
  display: grid;
  grid-template-columns: 1fr 1fr;
  background-color: var(--black);
  overflow: hidden;
}

.hero__content {
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: var(--spacing-xl) var(--spacing-lg) var(--spacing-lg);
  position: relative;
  z-index: 1;
}

.hero__eyebrow {
  margin-bottom: var(--spacing-md);
  color: var(--cream);
  opacity: 0.5;
}

.hero__name {
  font-size: clamp(3rem, 5.5vw, 6.5rem);
  color: var(--cream);
  margin-bottom: var(--spacing-xs);
}

.hero__role {
  font-family: var(--font-body);
  font-size: clamp(0.75rem, 1vw, 0.875rem);
  font-weight: 400;
  letter-spacing: var(--track-label);
  text-transform: uppercase;
  color: var(--cream);
  opacity: 0.55;
  margin-bottom: var(--spacing-lg);
  line-height: 1.8;
}

.hero__descriptor {
  max-width: 34rem;
  font-size: 0.9375rem;
  font-weight: 300;
  line-height: 1.6;
  color: var(--cream);
  opacity: 0.75;
  margin-bottom: var(--spacing-md);
}

.hero__ctas {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--spacing-md);
}

.hero__cta {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: var(--track-label);
  text-transform: uppercase;
  color: var(--cream);
  border-bottom: 1px solid rgba(253, 242, 235, 0.3);
  padding-bottom: 2px;
  width: fit-content;
  transition: border-color var(--transition), gap var(--transition);
}
.hero__cta:hover { border-color: var(--cream); gap: 1.25rem; }
.hero__cta svg { transition: transform var(--transition); }
.hero__cta:hover svg { transform: translateX(4px); }

.hero__cta--secondary {
  opacity: 0.6;
  border-bottom-color: transparent;
}
.hero__cta--secondary:hover { opacity: 0.9; border-color: rgba(253, 242, 235, 0.3); }

.hero__image {
  position: relative;
  overflow: hidden;
}

.hero__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}


/* ============================================================
   6. Section: Sobre mí
   ============================================================ */

.about {
  background-color: var(--burgundy);
  display: grid;
  grid-template-columns: 1fr 1fr;
  min-height: 80vh;
}

.about__image {
  overflow: hidden;
}

.about__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.about__content {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: var(--spacing-xl) var(--spacing-lg);
}

.about__eyebrow {
  color: var(--cream);
  opacity: 0.5;
  margin-bottom: var(--spacing-md);
}

.about__heading {
  font-size: clamp(2.5rem, 4vw, 4.5rem);
  color: var(--cream);
  margin-bottom: var(--spacing-md);
}

.about__bio {
  font-size: 1rem;
  font-weight: 300;
  line-height: 1.75;
  color: var(--cream);
  opacity: 0.85;
  margin-bottom: var(--spacing-sm);
}

.about__services {
  margin-top: var(--spacing-md);
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-xs);
}

.service-tag {
  font-size: 0.625rem;
  font-weight: 600;
  letter-spacing: var(--track-label);
  text-transform: uppercase;
  color: var(--cream);
  border: 1px solid rgba(253, 242, 235, 0.3);
  padding: 0.4rem 0.75rem;
}


/* ============================================================
   7. Section: Clientes
   ============================================================ */

.clients {
  background-color: var(--black);
  padding: var(--spacing-lg) var(--spacing-md);
  border-top: 1px solid rgba(253, 242, 235, 0.08);
  border-bottom: 1px solid rgba(253, 242, 235, 0.08);
}

.clients__label {
  display: block;
  width: 100%;
  text-align: center;
  color: var(--cream);
  opacity: 0.35;
  margin-bottom: var(--spacing-md);
}

.clients__logos {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: var(--spacing-lg) var(--spacing-xl);
}

.client-name {
  font-family: var(--font-body);
  font-size: 0.625rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--cream);
  opacity: 0.45;
  transition: opacity var(--transition);
}
.client-name:hover { opacity: 0.9; }


/* ============================================================
   8. Section: Proyectos
   ============================================================ */

.projects-section,
.featured-section {
  padding: var(--spacing-xl) var(--spacing-md);
  background-color: var(--black);
}

.featured-section {
  padding-bottom: var(--spacing-md);
}

.projects-grid--featured {
  grid-template-columns: repeat(3, 1fr);
}

.filter-count {
  font-size: 0.6875rem;
  color: var(--cream);
  opacity: 0.4;
  margin-bottom: var(--spacing-md);
}

.projects-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: var(--spacing-lg);
  flex-wrap: wrap;
  gap: var(--spacing-sm);
}

.projects-header h2 {
  font-size: clamp(2rem, 3.5vw, 4rem);
  color: var(--cream);
}

/* Filters */
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-xs);
  margin-bottom: var(--spacing-lg);
}

.filter-btn {
  font-family: var(--font-body);
  font-size: 0.625rem;
  font-weight: 600;
  letter-spacing: var(--track-label);
  text-transform: uppercase;
  color: var(--cream);
  opacity: 0.4;
  padding: 0.5rem 0;
  border-bottom: 1px solid transparent;
  transition: opacity var(--transition), border-color var(--transition);
}
.filter-btn:hover { opacity: 0.8; }
.filter-btn.active {
  opacity: 1;
  border-bottom-color: var(--cream);
}

/* Grid */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background-color: rgba(253, 242, 235, 0.06);
}

/* Project Card */
.project-card {
  position: relative;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background-color: var(--black);
  cursor: pointer;
  transition: opacity 0.35s ease;
}

.project-card.hidden {
  display: none;
}

.project-card__image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
  transition: transform 0.7s var(--ease);
}

.project-card[data-project="grupo-balia"] .project-card__image,
.project-card[data-project="berger-times"] .project-card__image {
  object-position: center center;
}

.project-card:hover .project-card__image {
  transform: scale(1.04);
}

.project-card__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to bottom,
    transparent 30%,
    rgba(25, 25, 25, 0.5) 65%,
    rgba(25, 25, 25, 0.92) 100%
  );
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 1.25rem;
}

.card__meta-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
}

.card__brand {
  font-size: 0.5625rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--cream);
  opacity: 0;
  transition: opacity var(--transition);
}
.project-card:hover .card__brand { opacity: 0.7; }

.card__year {
  font-size: 0.5625rem;
  font-weight: 400;
  letter-spacing: 0.1em;
  color: var(--cream);
  opacity: 0;
  transition: opacity var(--transition);
}
.project-card:hover .card__year { opacity: 0.5; }

.card__bottom {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.card__category {
  font-size: 0.5rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--cream);
  opacity: 0.5;
}

.card__title {
  font-family: var(--font-display);
  font-style: italic;
  font-size: clamp(1rem, 2vw, 1.5rem);
  color: var(--cream);
  line-height: 1.1;
}

.card__arrow {
  position: absolute;
  bottom: 1.25rem;
  right: 1.25rem;
  width: 36px;
  height: 36px;
  border: 1px solid rgba(253, 242, 235, 0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transform: translateY(6px);
  transition: opacity var(--transition), transform var(--transition);
}
.project-card:hover .card__arrow { opacity: 1; transform: translateY(0); }
.card__arrow svg { color: var(--cream); }


/* ============================================================
   9. Section: Contacto
   ============================================================ */

.contact {
  position: relative;
  min-height: 70vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: var(--spacing-xl) var(--spacing-md);
  background-color: var(--black);
  overflow: hidden;
}

.contact__bg {
  position: absolute;
  inset: 0;
  object-fit: cover;
  width: 100%;
  height: 100%;
  opacity: 0.18;
}

.contact__content {
  position: relative;
  z-index: 1;
}

.contact__eyebrow {
  color: var(--cream);
  opacity: 0.4;
  margin-bottom: var(--spacing-md);
}

.contact__heading {
  font-size: clamp(2rem, 5vw, 4.5rem);
  max-width: 44rem;
  margin-inline: auto;
  color: var(--cream);
  margin-bottom: var(--spacing-md);
}

.contact__body {
  max-width: 32rem;
  margin: 0 auto var(--spacing-lg);
  font-size: 1rem;
  font-weight: 300;
  color: var(--cream);
  opacity: 0.7;
}

.contact__links {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
  align-items: center;
}

.contact__link {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 1rem;
  font-weight: 300;
  color: var(--cream);
  opacity: 0.7;
  transition: opacity var(--transition);
}
.contact__link:hover { opacity: 1; }
.contact__link svg { opacity: 0.5; }


/* ============================================================
   10. Footer
   ============================================================ */

.site-footer {
  background-color: var(--black);
  border-top: 1px solid rgba(253, 242, 235, 0.08);
  padding: var(--spacing-md);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
}

.footer__left {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1rem;
  color: var(--cream);
  opacity: 0.4;
}

.footer__right {
  font-size: 0.5625rem;
  font-weight: 600;
  letter-spacing: var(--track-label);
  text-transform: uppercase;
  color: var(--cream);
  opacity: 0.25;
}


/* ============================================================
   11. PROJECT PAGES
   ============================================================ */

/* Project Hero */
.project-hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  overflow: hidden;
  background-color: var(--black);
}

.project-hero__image {
  position: absolute;
  inset: 0;
}

.project-hero__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
}

.project-hero__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to bottom,
    rgba(25, 25, 25, 0.2) 0%,
    transparent 35%,
    rgba(25, 25, 25, 0.6) 65%,
    rgba(25, 25, 25, 0.95) 100%
  );
}

.project-hero__content {
  position: relative;
  z-index: 1;
  padding: var(--spacing-lg) var(--spacing-lg) var(--spacing-lg);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.project-hero__meta {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  padding: 1.5rem var(--spacing-lg);
  position: absolute;
  top: var(--nav-height);
  left: 0;
  right: 0;
  z-index: 1;
}

.project-hero__brand {
  font-size: 0.5625rem;
  font-weight: 700;
  letter-spacing: var(--track-wider);
  text-transform: uppercase;
  color: var(--cream);
  opacity: 0.6;
}

.project-hero__year {
  font-size: 0.5625rem;
  font-weight: 400;
  letter-spacing: 0.12em;
  color: var(--cream);
  opacity: 0.45;
}

.project-hero__venue {
  font-size: 0.625rem;
  font-weight: 600;
  letter-spacing: var(--track-label);
  text-transform: uppercase;
  color: var(--cream);
  opacity: 0.5;
}

.project-hero__title {
  font-size: clamp(2.5rem, 6vw, 7rem);
  color: var(--cream);
}

.project-hero__subtitle {
  font-family: var(--font-body);
  font-size: 0.875rem;
  font-weight: 300;
  color: var(--cream);
  opacity: 0.6;
  max-width: 50ch;
}

/* Project Overview */
.project-overview {
  padding: var(--spacing-xl) var(--spacing-lg);
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: var(--spacing-xl);
  align-items: start;
}

.project-overview--light {
  background-color: var(--cream);
  color: var(--black);
}

.project-overview--dark {
  background-color: var(--black);
  color: var(--cream);
}

.project-overview--burgundy {
  background-color: var(--burgundy);
  color: var(--cream);
}

.meta-grid {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.meta-item label {
  display: block;
  font-size: 0.5rem;
  font-weight: 700;
  letter-spacing: var(--track-wider);
  text-transform: uppercase;
  opacity: 0.4;
  margin-bottom: 0.3rem;
}

.meta-item span {
  font-size: 0.8125rem;
  font-weight: 400;
  line-height: 1.5;
  opacity: 0.85;
}

.overview-description p {
  font-size: 1.0625rem;
  font-weight: 300;
  line-height: 1.75;
  opacity: 0.85;
  max-width: 65ch;
}

.overview-description p + p { margin-top: var(--spacing-md); }

/* Project Gallery */
.project-gallery {
  padding: 0 0 1px 0;
  background-color: rgba(253, 242, 235, 0.04);
}

.gallery-grid {
  display: grid;
  gap: 1px;
}

.gallery-grid--single { grid-template-columns: 1fr; }
.gallery-grid--two    { grid-template-columns: 1fr 1fr; }
.gallery-grid--three  { grid-template-columns: repeat(3, 1fr); }
.gallery-grid--four   { display: block; columns: 2; column-gap: 1px; }

.gallery-grid img {
  width: 100%;
  height: auto;
  display: block;
  transition: transform 0.6s var(--ease);
}

.gallery-grid--four .gallery-item {
  break-inside: avoid;
  margin-bottom: 1px;
}

.gallery-item {
  overflow: hidden;
}

.gallery-item:hover img { transform: scale(1.03); }

/* Deliverables */
.project-deliverables {
  padding: var(--spacing-lg) var(--spacing-lg);
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: var(--spacing-xl);
  align-items: start;
  background-color: var(--black);
  border-top: 1px solid rgba(253, 242, 235, 0.08);
}

.project-deliverables--light {
  background-color: var(--cream);
  border-top-color: rgba(25, 25, 25, 0.1);
}

.deliverables-label {
  font-size: 0.5rem;
  font-weight: 700;
  letter-spacing: var(--track-wider);
  text-transform: uppercase;
  color: var(--cream);
  opacity: 0.4;
  padding-top: 0.3rem;
}

.project-deliverables--light .deliverables-label { color: var(--black); }

.deliverables-list {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.deliverables-list li {
  font-size: 0.9375rem;
  font-weight: 300;
  line-height: 1.5;
  color: var(--cream);
  opacity: 0.8;
  padding: 0.875rem 0;
  border-bottom: 1px solid rgba(253, 242, 235, 0.08);
  display: flex;
  align-items: baseline;
  gap: 0.75rem;
}

.project-deliverables--light .deliverables-list li {
  color: var(--black);
  border-bottom-color: rgba(25, 25, 25, 0.1);
}

.project-deliverables--light .narrative-label,
.project-deliverables--light .credits-text {
  color: var(--black);
}

.project-deliverables--light .narrative-text p,
.project-deliverables--light .narrative-list li {
  color: var(--black);
}

.deliverables-list li::before {
  content: '—';
  opacity: 0.3;
  flex-shrink: 0;
  font-size: 0.75rem;
}

/* Project Narrative: Challenge / Approach / Outcome */
.project-narrative {
  padding: var(--spacing-lg) var(--spacing-lg);
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-xl);
  align-items: start;
  background-color: var(--black);
  border-top: 1px solid rgba(253, 242, 235, 0.08);
}

.project-narrative--single {
  grid-template-columns: 320px 1fr;
}

.narrative-label {
  display: block;
  font-size: 0.5rem;
  font-weight: 700;
  letter-spacing: var(--track-wider);
  text-transform: uppercase;
  color: var(--cream);
  opacity: 0.4;
  margin-bottom: var(--spacing-sm);
}

.narrative-text p {
  font-size: 1rem;
  font-weight: 300;
  line-height: 1.75;
  color: var(--cream);
  opacity: 0.85;
  max-width: 60ch;
}

.narrative-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.narrative-list li {
  font-size: 0.9375rem;
  font-weight: 300;
  line-height: 1.6;
  color: var(--cream);
  opacity: 0.85;
  padding-left: 1.25rem;
  position: relative;
  max-width: 60ch;
}

.narrative-list li::before {
  content: '—';
  position: absolute;
  left: 0;
  opacity: 0.4;
}

/* Project Credits */
.project-credits {
  padding: var(--spacing-lg) var(--spacing-lg);
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: var(--spacing-xl);
  align-items: start;
  background-color: var(--black);
  border-top: 1px solid rgba(253, 242, 235, 0.08);
}

.credits-text {
  font-size: 0.9375rem;
  font-weight: 300;
  line-height: 1.6;
  color: var(--cream);
  opacity: 0.7;
}

/* Project CTA */
.project-cta {
  padding: var(--spacing-xl) var(--spacing-lg);
  text-align: center;
  background-color: var(--black);
  border-top: 1px solid rgba(253, 242, 235, 0.08);
}

.project-cta__link {
  display: inline-flex;
  margin: 0 auto;
}

/* Project Navigation */
.project-nav {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  border-top: 1px solid rgba(253, 242, 235, 0.08);
}

.project-nav__link {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  padding: var(--spacing-md) var(--spacing-md);
  transition: background var(--transition);
}

.project-nav__link:hover { background: rgba(253, 242, 235, 0.04); }

.project-nav__link--prev { border-right: 1px solid rgba(253, 242, 235, 0.08); }
.project-nav__link--all { border-right: 1px solid rgba(253, 242, 235, 0.08); align-items: center; text-align: center; }
.project-nav__link--next { text-align: right; align-items: flex-end; }

.project-nav__dir {
  font-size: 0.5rem;
  font-weight: 700;
  letter-spacing: var(--track-wider);
  text-transform: uppercase;
  color: var(--cream);
  opacity: 0.35;
}

.project-nav__title {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1.125rem;
  color: var(--cream);
  opacity: 0.8;
}

.project-nav__link--all .project-nav__title {
  font-family: var(--font-body);
  font-style: normal;
  font-size: 0.625rem;
  font-weight: 600;
  letter-spacing: var(--track-label);
  text-transform: uppercase;
  opacity: 0.4;
}

/* Project nav on light bg */
.project-nav--light {
  border-top-color: rgba(25, 25, 25, 0.1);
  background-color: var(--cream);
  color: var(--black);
}
.project-nav--light .project-nav__link--prev,
.project-nav--light .project-nav__link--all {
  border-right-color: rgba(25, 25, 25, 0.1);
}
.project-nav--light .project-nav__link:hover { background: rgba(25, 25, 25, 0.04); }
.project-nav--light .project-nav__dir,
.project-nav--light .project-nav__title {
  color: var(--black);
}


/* ============================================================
   12. 404 Page
   ============================================================ */

.page-404 {
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  background-color: var(--black);
  padding: var(--spacing-md);
  gap: var(--spacing-md);
}

.page-404 h1 {
  font-size: clamp(6rem, 15vw, 16rem);
  color: var(--cream);
  opacity: 0.07;
  line-height: 1;
}

.page-404 h2 {
  font-size: clamp(1.5rem, 3vw, 2.5rem);
  color: var(--cream);
}

.page-404 p {
  font-size: 0.875rem;
  color: var(--cream);
  opacity: 0.5;
  max-width: 40ch;
  text-align: center;
  margin: 0 auto;
}

.btn-text {
  font-size: 0.625rem;
  font-weight: 700;
  letter-spacing: var(--track-label);
  text-transform: uppercase;
  color: var(--cream);
  border-bottom: 1px solid rgba(253, 242, 235, 0.3);
  padding-bottom: 3px;
  transition: border-color var(--transition);
}
.btn-text:hover { border-color: var(--cream); }


/* ============================================================
   13. Animations
   ============================================================ */

.fade-in {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}
.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}
.fade-in-delay-1 { transition-delay: 0.1s; }
.fade-in-delay-2 { transition-delay: 0.2s; }
.fade-in-delay-3 { transition-delay: 0.3s; }
.fade-in-delay-4 { transition-delay: 0.4s; }


/* ============================================================
   14. Responsive
   ============================================================ */

@media (max-width: 1024px) {
  :root {
    --spacing-lg: 3rem;
    --spacing-xl: 5rem;
  }

  .projects-grid,
  .projects-grid--featured { grid-template-columns: repeat(2, 1fr); }
  .project-overview { grid-template-columns: 240px 1fr; gap: var(--spacing-lg); }
  .project-deliverables,
  .project-credits { grid-template-columns: 240px 1fr; gap: var(--spacing-lg); }
  .project-narrative { grid-template-columns: 1fr 1fr; gap: var(--spacing-lg); }
}

@media (max-width: 768px) {
  :root {
    --spacing-lg: 2rem;
    --spacing-xl: 3.5rem;
    --nav-height: 60px;
  }

  /* Nav */
  .nav__links { display: none; }
  .nav__toggle { display: flex; }
  .site-nav { padding: 0 1.25rem; }

  /* Hero */
  .hero { grid-template-columns: 1fr; min-height: 100svh; }
  .hero__image {
    position: absolute;
    inset: 0;
    opacity: 0.35;
  }
  .hero__content {
    padding: var(--spacing-xl) 1.25rem var(--spacing-lg);
    position: relative;
    z-index: 1;
    min-height: 100svh;
    justify-content: flex-end;
  }

  /* About */
  .about { grid-template-columns: 1fr; }
  .about__image { height: 55vw; }
  .about__content { padding: var(--spacing-lg) 1.25rem; }

  /* Grid */
  .projects-grid,
  .projects-grid--featured { grid-template-columns: 1fr; }
  .projects-section,
  .featured-section { padding: var(--spacing-xl) 1.25rem; }

  /* Filter bar */
  .filter-bar { gap: 0.75rem 1.25rem; }

  /* Project */
  .project-overview { grid-template-columns: 1fr; gap: var(--spacing-lg); }
  .project-overview { padding: var(--spacing-lg) 1.25rem; }

  .project-deliverables,
  .project-narrative,
  .project-credits { grid-template-columns: 1fr; gap: var(--spacing-md); }
  .project-deliverables,
  .project-narrative,
  .project-credits { padding: var(--spacing-lg) 1.25rem; }
  .project-cta { padding: var(--spacing-lg) 1.25rem; }

  .project-hero__meta { padding: 1rem 1.25rem; }
  .project-hero__content { padding: var(--spacing-lg) 1.25rem; }

  .gallery-grid--two,
  .gallery-grid--three  { grid-template-columns: 1fr; }
  .gallery-grid--four   { columns: 1; }

  .project-nav { grid-template-columns: 1fr 1fr; }
  .project-nav__link--all { display: none; }
  .project-nav__link--prev { border-right: 1px solid rgba(253, 242, 235, 0.08); }

  .contact { padding: var(--spacing-xl) 1.25rem; }
  .site-footer { padding: var(--spacing-md) 1.25rem; }
}

@media (max-width: 480px) {
  .projects-header { flex-direction: column; }
  .hero__name { font-size: clamp(2.5rem, 10vw, 4.5rem); }
}
