/* FORGE — Design tokens from yeezy.com */
:root {
  --color-primary: #000000;
  --color-accent: #000000;
  --color-bg: #FFFFFF;
  --color-surface: #F9FAFB;
  --color-text: #000000;
  --color-text-secondary: #000000;
  --color-border: #E5E7EB;
  --color-btn-bg: #FFFFFF;
  --color-btn-text: #000000;
  --color-btn-border: #000000;

  --font: 'IBM Plex Mono', monospace;
  --fs-nav: 12px;
  --fs-body: 14px;
  --fs-h1: 16px;
  --fs-h2: 16px;
  --fs-small: 12px;
  --fs-price: 14px;

  --ls: 0.05em;
  --ls-wide: 0.1em;

  --header-h: 48px;
  --grid-gap: 2px;
  --container: 1400px;
  --section-pad: 80px 0;
  --card-pad: 16px;
  --radius: 0px;
}

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

html {
  font-family: var(--font);
  font-size: var(--fs-body);
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  scroll-behavior: smooth;
}

body {
  min-height: 100dvh;
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
img { display: block; max-width: 100%; }
ul { list-style: none; }

/* ─── HEADER ─── */
.header {
  position: sticky;
  top: 0;
  left: 0;
  z-index: 99;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: var(--header-h);
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  max-width: var(--container);
  padding: 0 24px;
  position: relative;
}

.header-logo {
  font-size: var(--fs-h1);
  font-weight: 700;
  letter-spacing: var(--ls-wide);
  text-transform: uppercase;
  position: absolute;
  left: 24px;
  top: 50%;
  transform: translateY(-50%);
}

.header-nav {
  display: flex;
  gap: 24px;
  align-items: center;
  justify-content: center;
  flex: 1;
}

.header-nav a {
  font-size: var(--fs-nav);
  letter-spacing: var(--ls);
  text-transform: uppercase;
  font-weight: 500;
  opacity: 0.5;
  transition: opacity 0.3s ease;
}

.header-nav a:hover,
.header-nav a.active {
  opacity: 1;
}

.header-cart {
  position: absolute;
  right: 24px;
  top: 50%;
  transform: translateY(-50%);
  font-size: var(--fs-nav);
  letter-spacing: var(--ls);
  text-transform: uppercase;
  font-weight: 500;
}

.mobile-toggle {
  display: none;
  flex-direction: column;
  gap: 4px;
  width: 18px;
  padding: 0;
  position: absolute;
  left: 24px;
  top: 50%;
  transform: translateY(-50%);
  z-index: 100;
}

.mobile-toggle span {
  display: block;
  height: 2px;
  width: 100%;
  background: var(--color-text);
  border-radius: 0;
  transition: transform 0.3s ease, opacity 0.3s ease;
}

.mobile-toggle.open span:first-child {
  transform: rotate(45deg) translate(2px, 3px);
}
.mobile-toggle.open span:last-child {
  transform: rotate(-45deg) translate(2px, -3px);
}

/* ─── HERO ─── */
.hero {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 60dvh;
  padding: 80px 24px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.15;
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 1;
}

.hero h1 {
  font-size: clamp(32px, 8vw, 72px);
  font-weight: 300;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  line-height: 1;
  margin-bottom: 16px;
}

.hero p {
  font-size: var(--fs-body);
  letter-spacing: var(--ls);
  text-transform: uppercase;
  color: var(--color-text-secondary);
  margin-bottom: 32px;
}

.btn {
  display: inline-block;
  padding: 12px 32px;
  font-size: var(--fs-nav);
  font-weight: 500;
  letter-spacing: var(--ls);
  text-transform: uppercase;
  border: 1px solid var(--color-btn-border);
  background: var(--color-btn-bg);
  color: var(--color-btn-text);
  border-radius: var(--radius);
  transition: background 0.3s ease, color 0.3s ease;
}

.btn:hover {
  background: var(--color-text);
  color: var(--color-bg);
}

/* ─── INTRO OVERLAY ─── */
.intro-container {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 200;
  background: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity 800ms ease;
}

.intro-container.fade-out {
  opacity: 0;
}

.intro-container.hidden {
  display: none;
}

.intro-text {
  font-family: var(--font);
  font-size: 14vw;
  font-weight: 300;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: #000;
  line-height: 1;
  text-align: center;
  white-space: nowrap;
}

@media (max-width: 640px) {
  .intro-text {
    font-size: 18vw;
  }
}

/* ─── CHIP CARD (hover text → image reveal) ─── */
.chip-card {
  position: relative;
  background: #000;
  overflow: hidden;
  aspect-ratio: 1 / 1;
  display: flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  color: #fff;
}

.chip-card__text {
  position: relative;
  z-index: 2;
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: var(--card-pad);
  font-family: var(--font);
  transition: opacity 350ms ease;
}

.chip-card__label {
  font-size: var(--fs-small);
  font-weight: 500;
  letter-spacing: var(--ls-wide);
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.5);
}

.chip-card__title {
  font-size: clamp(16px, 2vw, 24px);
  font-weight: 300;
  letter-spacing: var(--ls-wide);
  text-transform: uppercase;
  text-align: center;
  color: #fff;
}

.chip-card__price {
  font-size: var(--fs-small);
  letter-spacing: var(--ls);
  color: rgba(255, 255, 255, 0.5);
  text-align: right;
}

.chip-card__overlay-img {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0;
  transition: opacity 350ms ease;
  z-index: 1;
}

.chip-card:hover .chip-card__overlay-img {
  opacity: 1;
}

.chip-card:hover .chip-card__text {
  opacity: 0;
}

/* ─── PRODUCT GRID ─── */
.product-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--grid-gap);
  padding: 0;
}

.product-card {
  position: relative;
  overflow: hidden;
  cursor: pointer;
}

.product-card {
  /* Chip card handles all styling */
}

/* ─── CATEGORY FILTERS ─── */
.filter-bar {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 24px;
  padding: 24px;
  border-bottom: 1px solid var(--color-border);
}

.filter-btn {
  font-size: var(--fs-nav);
  font-weight: 500;
  letter-spacing: var(--ls);
  text-transform: uppercase;
  opacity: 0.3;
  transition: opacity 0.3s ease;
  padding: 4px 0;
}

.filter-btn:hover,
.filter-btn.active {
  opacity: 1;
}

/* ─── SECTIONS ─── */
.section {
  padding: var(--section-pad);
  max-width: var(--container);
  margin: 0 auto;
  padding-left: 24px;
  padding-right: 24px;
}

.section-title {
  font-size: var(--fs-h2);
  font-weight: 700;
  letter-spacing: var(--ls);
  text-transform: uppercase;
  margin-bottom: 40px;
}

.section-text {
  font-size: var(--fs-body);
  line-height: 1.8;
  max-width: 640px;
  color: var(--color-text-secondary);
  letter-spacing: 0.02em;
}

/* ─── VALUES GRID ─── */
.values-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 48px;
  margin-top: 48px;
}

.value-item h3 {
  font-size: var(--fs-body);
  font-weight: 700;
  letter-spacing: var(--ls);
  text-transform: uppercase;
  margin-bottom: 12px;
}

.value-item p {
  font-size: var(--fs-small);
  line-height: 1.7;
  color: var(--color-text-secondary);
  letter-spacing: 0.02em;
}

/* ─── CONTACT FORM ─── */
.contact-form {
  max-width: 480px;
  margin-top: 40px;
}

.form-group {
  margin-bottom: 24px;
}

.form-group label {
  display: block;
  font-size: var(--fs-small);
  letter-spacing: var(--ls);
  text-transform: uppercase;
  font-weight: 500;
  margin-bottom: 8px;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 12px 0;
  font-family: var(--font);
  font-size: var(--fs-body);
  color: var(--color-text);
  background: transparent;
  border: none;
  border-bottom: 1px solid var(--color-border);
  border-radius: var(--radius);
  outline: none;
  transition: border-color 0.3s ease;
  letter-spacing: 0.02em;
}

.form-group input:focus,
.form-group textarea:focus {
  border-bottom-color: var(--color-text);
}

.form-group textarea {
  resize: vertical;
  min-height: 100px;
}

/* ─── FOOTER ─── */
.footer {
  border-top: 1px solid var(--color-border);
  padding: 32px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: var(--fs-small);
  letter-spacing: var(--ls);
  text-transform: uppercase;
  color: var(--color-text-secondary);
}

.footer-links {
  display: flex;
  gap: 24px;
}

.footer-links a {
  transition: opacity 0.3s ease;
}

.footer-links a:hover {
  opacity: 0.5;
}

/* ─── ABOUT PAGE ─── */
.about-hero {
  width: 100%;
  height: 40dvh;
  object-fit: cover;
  display: block;
}

/* ─── PAGE HEADER ─── */
.page-header {
  padding: 80px 24px 40px;
  text-align: center;
}

.page-header h1 {
  font-size: var(--fs-h1);
  font-weight: 700;
  letter-spacing: var(--ls-wide);
  text-transform: uppercase;
}

/* ─── SCROLL REVEAL ─── */
.reveal {
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ─── MOBILE: 1024px ─── */
@media (max-width: 1024px) {
  .header-logo {
    font-size: 14px;
    max-height: 42px;
  }

  .header-nav {
    display: none;
    position: absolute;
    top: var(--header-h);
    left: 0;
    width: 100%;
    flex-direction: column;
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    padding: 24px;
    gap: 16px;
    z-index: 98;
  }

  .header-nav.open {
    display: flex;
  }

  .header-nav a {
    color: var(--color-text);
    opacity: 1;
    font-size: var(--fs-body);
  }

  .mobile-toggle {
    display: flex;
  }

  .header-logo {
    left: 50%;
    transform: translate(-50%, -50%);
  }

  .header-cart {
    display: none;
  }

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

  .values-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .filter-bar {
    gap: 16px;
    flex-wrap: wrap;
  }
}

/* ─── MOBILE: 640px ─── */
@media (max-width: 640px) {
  .hero h1 {
    font-size: clamp(28px, 10vw, 48px);
  }

  .product-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .footer {
    flex-direction: column;
    gap: 16px;
    text-align: center;
  }

  .footer-links {
    flex-wrap: wrap;
    justify-content: center;
  }

  .section {
    padding: 48px 16px;
  }

  .page-header {
    padding: 48px 16px 24px;
  }

  .filter-bar {
    gap: 12px;
    padding: 16px;
  }

  .filter-btn {
    font-size: 11px;
  }
}

/* ─── PRODUCT CARD LINKS ─── */
.product-card a {
  color: inherit;
  text-decoration: none;
  display: block;
}

/* ─── PROJECT DETAIL PAGE ─── */
.pdp {
  display: grid;
  grid-template-columns: 55% 45%;
  min-height: calc(100dvh - var(--header-h));
}

.pdp-image {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  background: var(--color-surface);
  display: block;
}

.pdp-info {
  padding: 64px 48px;
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.pdp-name {
  font-size: var(--fs-h1);
  font-weight: 700;
  letter-spacing: var(--ls-wide);
  text-transform: uppercase;
}

.pdp-subtitle {
  font-size: var(--fs-body);
  color: var(--color-text-secondary);
  letter-spacing: var(--ls);
  text-transform: uppercase;
  margin-top: 4px;
}

.pdp-price {
  font-size: var(--fs-body);
  font-weight: 400;
  letter-spacing: var(--ls);
}

.pdp-label {
  font-size: var(--fs-small);
  font-weight: 500;
  letter-spacing: var(--ls);
  text-transform: uppercase;
  color: var(--color-text-secondary);
  margin-bottom: 8px;
}

.pdp-details {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding-top: 16px;
  border-top: 1px solid var(--color-border);
}

.pdp-detail {
  font-size: var(--fs-small);
  font-weight: 400;
  letter-spacing: var(--ls);
  text-transform: uppercase;
  color: var(--color-text-secondary);
  line-height: 1.6;
}

/* ─── MORE PROJECTS ─── */
.pdp-related {
  padding: 80px 24px;
  border-top: 1px solid var(--color-border);
}

.pdp-related-title {
  font-size: var(--fs-h2);
  font-weight: 700;
  letter-spacing: var(--ls-wide);
  text-transform: uppercase;
  text-align: center;
  margin-bottom: 40px;
}

.pdp-related-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--grid-gap);
  max-width: var(--container);
  margin: 0 auto;
}

/* ─── PDP MOBILE ─── */
@media (max-width: 1024px) {
  .pdp {
    grid-template-columns: 1fr;
  }

  .pdp-info {
    padding: 32px 24px;
  }

  .pdp-related-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 640px) {
  .pdp-info {
    padding: 24px 16px;
    gap: 24px;
  }

  .pdp-related {
    padding: 48px 16px;
  }

  .pdp-related-title {
    margin-bottom: 24px;
  }
}