/* ==========================================================================
   KO³ — Product Designer Portfolio
   Typography and layout replicated from the Webflow design (Homepage D)
   Font: Manrope · Body 18/1.7 #555 · Headings Manrope 700 #000
   ========================================================================== */

:root {
  --color-heading: #000;
  --color-body: #555;
  --color-line: #e4e4e4;
  --color-chip-bg: #efefef;
  --color-chip-text: rgba(0, 0, 0, 0.6);
  --color-bg: #fff;
  --container: 1200px;
  --gutter: 30px;
  --nav-height: 81px;
  color-scheme: light;
}

[data-theme="dark"] {
  --color-heading: #fff;
  --color-body: #a0a0a0;
  --color-line: #262626;
  --color-chip-bg: #1f1f1f;
  --color-chip-text: rgba(255, 255, 255, 0.6);
  --color-bg: #111;
  color-scheme: dark;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background-color: var(--color-bg);
  color: var(--color-body);
  font-family: "Manrope", -apple-system, BlinkMacSystemFont, sans-serif;
  font-size: 18px;
  font-weight: 400;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  transition: background-color 0.3s ease, color 0.3s ease;
}

img {
  max-width: 100%;
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
}

.container {
  max-width: var(--container);
  margin-left: auto;
  margin-right: auto;
}

/* --------------------------------------------------------------------------
   Navbar — fixed, white, menu button left, avatar brand centered
   -------------------------------------------------------------------------- */

.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background-color: var(--color-bg);
  padding: 0 var(--gutter);
  transition: background-color 0.3s ease;
}

.navbar-grid {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  height: var(--nav-height);
  max-width: var(--container);
  margin: 0 auto;
}

.menu-button {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 0;
  border: 0;
  background: transparent;
  cursor: pointer;
}

.menu-button img {
  width: 24px;
  height: 24px;
}

[data-theme="dark"] .menu-button img {
  filter: invert(1);
}

.menu-button .close-icon {
  display: none;
}

.menu-button.is-open .menu-icon {
  display: none;
}

.menu-button.is-open .close-icon {
  display: block;
}

.menu-button-text {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 1.2px;
  text-transform: uppercase;
  color: var(--color-heading);
}

.brand img {
  width: 40px;
  height: 40px;
}

/* Theme toggle — right slot of the navbar */

.nav-right {
  display: flex;
  justify-content: flex-end;
}

.theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  padding: 0;
  border: 0;
  border-radius: 50%;
  background: transparent;
  color: var(--color-heading);
  cursor: pointer;
  transition: background-color 0.2s ease, color 0.2s ease;
}

.theme-toggle:hover {
  background-color: var(--color-chip-bg);
}

.theme-toggle .icon-sun {
  display: none;
}

[data-theme="dark"] .theme-toggle .icon-sun {
  display: block;
}

[data-theme="dark"] .theme-toggle .icon-moon {
  display: none;
}

/* --------------------------------------------------------------------------
   Nav menu — expands below the navbar, 3-column grid
   -------------------------------------------------------------------------- */

.nav-menu {
  display: none;
  position: fixed;
  top: var(--nav-height);
  left: 0;
  right: 0;
  z-index: 99;
  background-color: var(--color-bg);
  padding: 0 var(--gutter);
  border-bottom: 1px solid var(--color-line);
  box-shadow: 0 30px 60px rgba(0, 0, 0, 0.06);
}

[data-theme="dark"] .nav-menu {
  box-shadow: 0 30px 60px rgba(0, 0, 0, 0.4);
}

.nav-menu.is-open {
  display: block;
}

.menu-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  max-width: var(--container);
  margin: 0 auto;
  padding: 50px 0;
}

.menu-text {
  font-size: 14px;
  font-weight: 500;
  color: var(--color-heading);
  margin-bottom: 20px;
}

.nav-link {
  display: block;
  font-size: 18px;
  font-weight: 700;
  line-height: 1.1;
  color: var(--color-heading);
  padding: 8px 0;
  transition: color 0.2s ease;
}

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

/* --------------------------------------------------------------------------
   Sections & hero
   -------------------------------------------------------------------------- */

.section {
  padding: 130px var(--gutter) 0;
}

.hero-heading {
  font-size: 42px;
  font-weight: 700;
  line-height: 1.35;
  letter-spacing: -0.4px;
  color: var(--color-heading);
  margin: 0 0 18px;
}

.hero-subheading {
  font-size: 24px;
  font-weight: 500;
  line-height: 1.5;
  letter-spacing: -0.4px;
  color: var(--color-body);
  margin: 0 0 26px;
}

.space {
  height: 1px;
  background-color: var(--color-line);
  margin: 50px 0;
}

/* --------------------------------------------------------------------------
   Project grid — 2 columns, 30px column gap, 57px row gap
   -------------------------------------------------------------------------- */

.project-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  column-gap: 30px;
  row-gap: 57px;
  padding-bottom: 100px;
}

.project-card .card-image {
  display: block;
  height: 340px;
  border-radius: 8px;
  overflow: hidden;
  margin-bottom: 25px;
}

.project-card .card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.45s ease;
}

.project-card .card-image:hover img {
  transform: scale(1.03);
}

.post-info {
  display: flex;
  margin-bottom: 7px;
}

.link-category {
  display: inline-block;
  font-size: 11px;
  font-weight: 600;
  line-height: 1.1;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--color-chip-text);
  background-color: var(--color-chip-bg);
  padding: 6px 10px;
  border-radius: 4px;
}

.post-heading {
  font-size: 30px;
  font-weight: 700;
  line-height: 1.22;
  letter-spacing: -0.4px;
  color: var(--color-heading);
  margin: 0;
}

.post-heading a {
  transition: color 0.2s ease;
}

.post-heading a:hover {
  color: var(--color-body);
}

/* --------------------------------------------------------------------------
   Project page — title/description header + stacked images
   -------------------------------------------------------------------------- */

.project-header {
  max-width: var(--container);
  margin: 0 auto;
}

.project-header .post-info {
  margin-bottom: 14px;
}

.project-title {
  font-size: 42px;
  font-weight: 700;
  line-height: 1.35;
  letter-spacing: -0.4px;
  color: var(--color-heading);
  margin: 0 0 18px;
}

.project-description {
  font-size: 24px;
  font-weight: 500;
  line-height: 1.5;
  letter-spacing: -0.4px;
  color: var(--color-body);
  margin: 0;
  max-width: 860px;
}

.project-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 40px;
  margin-top: 34px;
}

.project-meta .meta-label {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--color-chip-text);
  margin-bottom: 4px;
}

.project-meta .meta-value {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-heading);
}

.project-images {
  display: grid;
  row-gap: 30px;
  max-width: var(--container);
  margin: 0 auto;
  padding-bottom: 30px;
}

.project-images img {
  width: 100%;
  border-radius: 8px;
}

/* Next project link */

.next-project {
  max-width: var(--container);
  margin: 0 auto;
  padding: 20px 0 100px;
}

.next-project .next-label {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--color-chip-text);
  margin-bottom: 7px;
}

.next-project a {
  font-size: 30px;
  font-weight: 700;
  letter-spacing: -0.4px;
  color: var(--color-heading);
  transition: color 0.2s ease;
}

.next-project a:hover {
  color: var(--color-body);
}

/* --------------------------------------------------------------------------
   Footer — logo | social links | page links
   -------------------------------------------------------------------------- */

.footer {
  padding: 0 var(--gutter);
  border-top: 1px solid var(--color-line);
}

.grid-footer {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  max-width: var(--container);
  margin: 0 auto;
  padding: 50px 0;
}

.logo-footer {
  width: 50px;
  height: 50px;
}

.link-footer {
  display: block;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.4;
  color: var(--color-heading);
  padding: 6px 0;
  transition: color 0.2s ease;
}

.link-footer:hover {
  color: var(--color-body);
}

/* --------------------------------------------------------------------------
   Responsive
   -------------------------------------------------------------------------- */

@media (max-width: 991px) {
  .project-grid {
    column-gap: 24px;
    row-gap: 48px;
  }

  .project-card .card-image {
    height: 280px;
  }

  .hero-heading,
  .project-title {
    font-size: 38px;
  }
}

@media (max-width: 767px) {
  .section {
    padding: 120px 20px 0;
  }

  .navbar,
  .nav-menu,
  .footer {
    padding-left: 20px;
    padding-right: 20px;
  }

  .project-grid {
    grid-template-columns: 1fr;
    row-gap: 48px;
    padding-bottom: 70px;
  }

  .hero-heading,
  .project-title {
    font-size: 32px;
  }

  .hero-subheading,
  .project-description {
    font-size: 20px;
  }

  .post-heading {
    font-size: 26px;
  }

  .menu-grid {
    grid-template-columns: 1fr;
    gap: 30px;
    padding: 40px 0;
  }

  .grid-footer {
    grid-template-columns: 1fr;
    gap: 30px;
  }

  .space {
    margin: 40px 0;
  }
}

@media (max-width: 479px) {
  .project-card .card-image {
    height: 240px;
  }

  .hero-heading,
  .project-title {
    font-size: 28px;
  }
}