/* Rude Llama Co — Slop Commentary
   Gallery wall system (Specht Studio reference) */

:root {
  /* Colors */
  --color-gallery-white: #ffffff;
  --color-fog-gray: #b0b0b0;
  --color-graphite: #666666;
  --color-gallery-black: #000000;

  /* Typography */
  --font-helvetica-neue: "Helvetica Neue", Helvetica, ui-sans-serif, system-ui,
    -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --text-caption: 15px;
  --leading-caption: 1.4;
  --text-body-sm: 16px;
  --leading-body-sm: 1.4;
  --text-body: 25px;
  --leading-body: 1.3;
  --text-hero: clamp(32px, 4.2vw, 48px);
  --leading-hero: 1.05;
  --text-hero-sub: clamp(18px, 2vw, 25px);
  --leading-hero-sub: 1.25;
  --font-weight-regular: 400;

  /* Spacing */
  --spacing-unit: 6px;
  --spacing-10: 10px;
  --spacing-11: 11px;
  --spacing-12: 12px;
  --spacing-13: 13px;
  --spacing-24: 24px;
  --spacing-30: 30px;
  --spacing-35: 35px;

  /* Layout — full-bleed; grid columns grow with viewport */
  --page-max-width: none;
  --section-gap: 80px;
  --card-padding: 0px;
  --element-gap: 8px;
  --page-gutter: 24px;
  --tile-min: 200px;

  /* Radii */
  --radius-all: 0px;
  --radius-nav: 0px;
  --radius-tiles: 0px;

  /* Surfaces */
  --surface-gallery-white: #ffffff;
  --surface-fog-gray: #b0b0b0;
}

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

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-helvetica-neue);
  font-weight: var(--font-weight-regular);
  font-size: var(--text-body-sm);
  line-height: var(--leading-body-sm);
  color: var(--color-gallery-black);
  background: var(--color-gallery-white);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

button {
  font: inherit;
  color: inherit;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
}

ul {
  list-style: none;
}

/* —— Brand lockup (hero) —— */
.brand {
  display: flex;
  flex-direction: column;
  gap: 6px;
  flex-shrink: 1;
  min-width: 0;
  max-width: min(720px, 100%);
}

.brand__name {
  font-size: var(--text-hero);
  line-height: var(--leading-hero);
  font-weight: var(--font-weight-regular);
  color: var(--color-gallery-black);
  letter-spacing: -0.02em;
}

.brand__subtitle {
  font-size: var(--text-hero-sub);
  line-height: var(--leading-hero-sub);
  font-weight: var(--font-weight-regular);
  font-style: italic;
  color: var(--color-graphite);
}

/* —— Navigation —— */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--color-gallery-white);
  border-bottom: 1px solid var(--color-gallery-black);
}

.site-header__inner {
  width: 100%;
  max-width: none;
  margin: 0;
  padding: var(--spacing-30) var(--page-gutter);
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--spacing-24);
}

.nav {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0;
  justify-content: flex-end;
}

.nav__link {
  font-size: var(--text-caption);
  line-height: var(--leading-caption);
  font-weight: var(--font-weight-regular);
  color: var(--color-gallery-black);
  margin-right: var(--spacing-30);
  padding-bottom: 2px;
  border-bottom: 2px solid transparent;
  white-space: nowrap;
}

.nav__link:last-child {
  margin-right: 0;
}

.nav__link.is-active {
  border-bottom-color: var(--color-gallery-black);
}

.nav__link.is-filter {
  color: var(--color-graphite);
  border-bottom-color: transparent;
}

.nav__link.is-filter.is-active {
  color: var(--color-gallery-black);
  border-bottom-color: var(--color-gallery-black);
}

/* Mobile nav toggle */
.nav-toggle {
  display: none;
  font-size: var(--text-caption);
  line-height: var(--leading-caption);
  color: var(--color-gallery-black);
  border-bottom: 1px solid var(--color-gallery-black);
  padding-bottom: 1px;
  margin-top: 2px;
}

/* —— Text link —— */
.text-link {
  font-size: var(--text-caption);
  line-height: var(--leading-caption);
  font-weight: var(--font-weight-regular);
  color: var(--color-graphite);
  border-bottom: 1px solid var(--color-graphite);
}

/* —— Main —— */
.site-main {
  width: 100%;
  max-width: none;
  margin: 0;
  padding: var(--spacing-35) var(--page-gutter) var(--section-gap);
}

/* —— Section header —— */
.section-header {
  font-size: var(--text-body);
  line-height: 1.2;
  font-weight: var(--font-weight-regular);
  color: var(--color-gallery-black);
  margin-bottom: var(--spacing-24);
}

.series {
  margin-bottom: var(--section-gap);
  scroll-margin-top: 100px;
}

.series[hidden],
.series.is-hidden {
  display: none;
}

.series__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: var(--spacing-12);
  margin-bottom: var(--spacing-24);
}

.series__count {
  font-size: var(--text-caption);
  line-height: var(--leading-caption);
  color: var(--color-graphite);
}

/* —— Grid — fills viewport; column count scales with width —— */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(var(--tile-min), 1fr));
  gap: var(--element-gap);
  align-items: start;
  width: 100%;
}

/* —— Project tile —— */
.tile {
  display: block;
  width: 100%;
  padding: var(--card-padding);
  border-radius: var(--radius-tiles);
  background: var(--color-gallery-white);
  overflow: hidden;
  cursor: pointer;
  border: none;
  text-align: left;
}

.tile:focus-visible {
  outline: 1px solid var(--color-gallery-black);
  outline-offset: 2px;
}

.tile__img {
  width: 100%;
  height: auto;
  aspect-ratio: 2 / 3;
  object-fit: cover;
  border-radius: var(--radius-tiles);
  background: var(--color-fog-gray);
}

/* —— About —— */
.about {
  max-width: 640px;
  margin-bottom: var(--section-gap);
  scroll-margin-top: 100px;
}

.about p {
  font-size: var(--text-body-sm);
  line-height: var(--leading-body-sm);
  color: var(--color-gallery-black);
  margin-bottom: var(--spacing-13);
}

.about p:last-child {
  margin-bottom: 0;
}

.about .text-link {
  margin-top: var(--spacing-24);
  display: inline-block;
}

/* —— Footer —— */
.site-footer {
  width: 100%;
  max-width: none;
  margin: 0;
  padding: var(--spacing-24) var(--page-gutter) var(--spacing-35);
  border-top: 1px solid var(--color-gallery-black);
}

.site-footer__inner {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: var(--spacing-12);
  font-size: var(--text-caption);
  line-height: var(--leading-caption);
  color: var(--color-gallery-black);
}

.site-footer__meta {
  color: var(--color-graphite);
}

/* —— Lightbox —— */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 200;
  background: var(--color-gallery-white);
  display: flex;
  flex-direction: column;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.15s ease, visibility 0.15s ease;
}

.lightbox.is-open {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

.lightbox__bar {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--spacing-24);
  padding: var(--spacing-24) var(--page-gutter);
  border-bottom: 1px solid var(--color-gallery-black);
  flex-shrink: 0;
}

.lightbox__meta {
  min-width: 0;
}

.lightbox__series {
  font-size: var(--text-caption);
  line-height: var(--leading-caption);
  color: var(--color-graphite);
  margin-bottom: 2px;
}

.lightbox__title {
  font-size: var(--text-body-sm);
  line-height: var(--leading-body-sm);
  color: var(--color-gallery-black);
}

.lightbox__controls {
  display: flex;
  align-items: center;
  gap: var(--spacing-30);
  flex-shrink: 0;
}

.lightbox__btn {
  font-size: var(--text-caption);
  line-height: var(--leading-caption);
  color: var(--color-gallery-black);
  border-bottom: 1px solid transparent;
  padding-bottom: 1px;
}

.lightbox__btn:focus-visible {
  outline: 1px solid var(--color-gallery-black);
  outline-offset: 2px;
}

.lightbox__stage {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-24) var(--page-gutter);
  min-height: 0;
  overflow: auto;
}

.lightbox__img {
  max-width: 100%;
  max-height: calc(100vh - 120px);
  width: auto;
  height: auto;
  object-fit: contain;
}

body.lightbox-open {
  overflow: hidden;
}

/* —— Responsive —— */
@media (min-width: 1800px) {
  :root {
    --tile-min: 220px;
  }
}

@media (min-width: 2400px) {
  :root {
    --tile-min: 240px;
  }
}

@media (max-width: 900px) {
  :root {
    --tile-min: 160px;
  }
}

@media (max-width: 768px) {
  :root {
    --page-gutter: 16px;
    --section-gap: 56px;
    --element-gap: 6px;
    --tile-min: calc(50% - 3px);
    --text-hero: 28px;
    --text-hero-sub: 16px;
  }

  .site-header__inner {
    padding: var(--spacing-13) var(--page-gutter);
    flex-wrap: wrap;
  }

  .brand {
    gap: 4px;
    max-width: calc(100% - 64px);
  }

  .nav-toggle {
    display: block;
  }

  .nav {
    display: none;
    width: 100%;
    flex-direction: column;
    align-items: flex-start;
    gap: var(--spacing-12);
    padding-top: var(--spacing-13);
    border-top: 1px solid var(--color-fog-gray);
    margin-top: var(--spacing-13);
  }

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

  .nav__link {
    margin-right: 0;
  }

  /* Keep proven 2-up mobile grid */
  .grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .site-main {
    padding-top: var(--spacing-24);
  }

  .section-header {
    font-size: 20px;
  }

  .lightbox__bar {
    padding: var(--spacing-13) var(--page-gutter);
  }

  .lightbox__controls {
    gap: var(--spacing-13);
  }

  .lightbox__btn--prev,
  .lightbox__btn--next {
    display: none;
  }
}

@media (max-width: 420px) {
  .grid {
    grid-template-columns: 1fr 1fr;
    gap: 4px;
  }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .lightbox {
    transition: none;
  }
}