/* ==========================================================================
   experimentswith.tech - Brutalist Stylesheet
   Pure black & white. Monospace. Raw. Functional.
   ========================================================================== */

/* --------------------------------------------------------------------------
   CSS Variables
   -------------------------------------------------------------------------- */
:root {
  --bg: #FFFFFF;
  --text: #000000;
  --muted: #666666;
  --border: #000000;
  --invert-bg: #000000;
  --invert-text: #FFFFFF;

  --font-mono: 'JetBrains Mono', 'Fira Code', 'SF Mono', monospace;

  --size-display: clamp(2.5rem, 8vw, 4.5rem);
  --size-h1: clamp(1.75rem, 4vw, 2.5rem);
  --size-h2: clamp(1.25rem, 3vw, 1.5rem);
  --size-body: 1rem;
  --size-small: 0.875rem;
  --size-caption: 0.75rem;

  --border-width: 2px;
  --spacing-unit: 1rem;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-mono);
  font-size: var(--size-body);
  line-height: 1.6;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

::selection {
  background: var(--text);
  color: var(--bg);
}

/* --------------------------------------------------------------------------
   Typography
   -------------------------------------------------------------------------- */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

.display {
  font-size: var(--size-display);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.03em;
}

h1 { font-size: var(--size-h1); }
h2 { font-size: var(--size-h2); }

p {
  margin-bottom: var(--spacing-unit);
}

.text-muted {
  color: var(--muted);
}

.text-small {
  font-size: var(--size-small);
}

.text-caption {
  font-size: var(--size-caption);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

/* --------------------------------------------------------------------------
   Links
   -------------------------------------------------------------------------- */
a {
  color: var(--text);
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: all 0.15s ease;
}

a:hover {
  background: var(--invert-bg);
  color: var(--invert-text);
  text-decoration: none;
}

/* Arrow links - main CTA style */
.arrow-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
  font-weight: 700;
  padding: 0.25rem 0;
}

.arrow-link::before {
  content: '\2192';
  transition: transform 0.15s ease;
}

.arrow-link:hover {
  background: transparent;
  color: var(--text);
}

.arrow-link:hover::before {
  transform: translateX(4px);
}

/* Back links */
.back-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
  font-size: var(--size-small);
}

.back-link::before {
  content: '\2190';
  transition: transform 0.15s ease;
}

.back-link:hover::before {
  transform: translateX(-4px);
}

/* --------------------------------------------------------------------------
   Layout
   -------------------------------------------------------------------------- */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-unit);
}

.container--narrow {
  max-width: 800px;
}

/* --------------------------------------------------------------------------
   Header
   -------------------------------------------------------------------------- */
.site-header {
  padding: var(--spacing-unit) 0;
  border-bottom: var(--border-width) solid var(--border);
}

.site-header__inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--spacing-unit);
}

.site-header__logo {
  font-size: var(--size-small);
  font-weight: 700;
  text-decoration: none;
  text-transform: lowercase;
}

.site-header__logo:hover {
  background: transparent;
  text-decoration: underline;
}

.site-header__nav {
  display: flex;
  gap: calc(var(--spacing-unit) * 1.5);
}

.site-header__nav a {
  font-size: var(--size-small);
  text-decoration: none;
}

/* --------------------------------------------------------------------------
   Hero Section
   -------------------------------------------------------------------------- */
.hero {
  min-height: calc(100vh - 80px);
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: calc(var(--spacing-unit) * 4) 0;
}

.hero__title {
  margin-bottom: calc(var(--spacing-unit) * 2);
}

.hero__intro {
  font-size: var(--size-h2);
  margin-bottom: calc(var(--spacing-unit) * 3);
  max-width: 600px;
  line-height: 1.4;
}

.hero__intro a {
  color: #444;
  text-decoration: none;
}

.hero__intro a:hover {
  background: transparent;
  color: var(--text);
  text-decoration: underline;
}

.hero__cta {
  font-size: var(--size-h2);
}

/* Emphasis underline */
.emphasis {
  text-decoration: underline;
  text-decoration-thickness: 3px;
  text-underline-offset: 4px;
}

/* --------------------------------------------------------------------------
   Project Cards
   -------------------------------------------------------------------------- */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: var(--spacing-unit);
}

.project-card {
  position: relative;
  border: var(--border-width) solid var(--border);
  padding: calc(var(--spacing-unit) * 1.5);
  display: flex;
  flex-direction: column;
  transition: all 0.15s ease;
}

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

.project-card:hover a {
  color: var(--bg);
}

.project-card:hover .project-card__tags {
  color: var(--bg);
}

.project-card__number {
  font-size: var(--size-caption);
  color: var(--muted);
  margin-bottom: 0.5rem;
}

.project-card:hover .project-card__number {
  color: var(--bg);
  opacity: 0.7;
}

.project-card__title {
  font-size: var(--size-h2);
  margin-bottom: var(--spacing-unit);
  text-transform: uppercase;
  letter-spacing: 0.02em;
}

.project-card__divider {
  border: none;
  border-top: 1px solid var(--border);
  margin-bottom: var(--spacing-unit);
}

.project-card:hover .project-card__divider {
  border-color: var(--bg);
  opacity: 0.3;
}

.project-card__problem {
  font-size: var(--size-small);
  margin-bottom: var(--spacing-unit);
  flex-grow: 1;
}

.project-card__tags {
  font-size: var(--size-caption);
  color: var(--muted);
  margin-bottom: var(--spacing-unit);
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.project-card__link {
  font-size: var(--size-small);
  font-weight: 700;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.project-card__link::before {
  content: '\2192';
}

.project-card__link::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
}

.project-card:hover .project-card__link:hover {
  background: var(--bg);
  color: var(--text);
}

/* --------------------------------------------------------------------------
   Project Detail Page
   -------------------------------------------------------------------------- */
.project-header {
  padding: calc(var(--spacing-unit) * 3) 0;
  border-bottom: var(--border-width) solid var(--border);
}

.project-header__number {
  font-size: var(--size-caption);
  color: var(--muted);
  margin-bottom: 0.5rem;
}

.project-header__title {
  font-size: var(--size-h1);
  text-transform: uppercase;
}

.project-section {
  padding: calc(var(--spacing-unit) * 3) 0;
  border-bottom: 1px solid var(--border);
}

.project-section:last-child {
  border-bottom: none;
}

.project-section__label {
  font-size: var(--size-caption);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--muted);
  margin-bottom: calc(var(--spacing-unit) * 0.5);
}

.project-section__divider {
  width: 100px;
  border: none;
  border-top: var(--border-width) solid var(--border);
  margin-bottom: var(--spacing-unit);
}

.project-section__content {
  max-width: 700px;
}

/* Demo/Screenshot */
.project-demo {
  border: var(--border-width) solid var(--border);
  padding: var(--spacing-unit);
  margin: calc(var(--spacing-unit) * 2) 0;
}

.project-demo img {
  width: 100%;
  height: auto;
  display: block;
}

.project-demo__placeholder {
  aspect-ratio: 16/9;
  background: repeating-linear-gradient(
    45deg,
    var(--bg),
    var(--bg) 10px,
    #f0f0f0 10px,
    #f0f0f0 20px
  );
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--size-caption);
  color: var(--muted);
  text-transform: uppercase;
}

/* CTAs row */
.project-ctas {
  display: flex;
  gap: calc(var(--spacing-unit) * 2);
  flex-wrap: wrap;
}

/* Video embed */
.video-embed {
  border: var(--border-width) solid var(--border);
  aspect-ratio: 16/9;
  margin: calc(var(--spacing-unit) * 2) 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--text);
  color: var(--bg);
  font-size: var(--size-caption);
  text-transform: uppercase;
}

/* Project footer */
.project-footer {
  padding: calc(var(--spacing-unit) * 2) 0;
  font-size: var(--size-small);
  color: var(--muted);
  border-top: var(--border-width) solid var(--border);
}

/* --------------------------------------------------------------------------
   About Page
   -------------------------------------------------------------------------- */
.about-content {
  padding: calc(var(--spacing-unit) * 4) 0;
}

.about-content__title {
  font-size: var(--size-h1);
  margin-bottom: var(--spacing-unit);
}

.about-content__divider {
  width: 150px;
  border: none;
  border-top: var(--border-width) solid var(--border);
  margin-bottom: calc(var(--spacing-unit) * 2);
}

.about-content__text {
  max-width: 600px;
  margin-bottom: calc(var(--spacing-unit) * 3);
}

.about-content__links {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-unit);
  align-items: flex-start;
}

/* --------------------------------------------------------------------------
   Page Header (for inner pages)
   -------------------------------------------------------------------------- */
.page-header {
  padding: calc(var(--spacing-unit) * 2) 0;
  border-bottom: var(--border-width) solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--spacing-unit);
}

.page-header__title {
  font-size: var(--size-h2);
  text-transform: uppercase;
}

/* --------------------------------------------------------------------------
   Footer
   -------------------------------------------------------------------------- */
.site-footer {
  padding: calc(var(--spacing-unit) * 2) 0;
  border-top: var(--border-width) solid var(--border);
  margin-top: calc(var(--spacing-unit) * 4);
}

.site-footer__inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--spacing-unit);
  font-size: var(--size-small);
}

.site-footer__links {
  display: flex;
  gap: calc(var(--spacing-unit) * 1.5);
}

.site-footer__copy {
  color: var(--muted);
}

/* --------------------------------------------------------------------------
   Utility Classes
   -------------------------------------------------------------------------- */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.mt-1 { margin-top: var(--spacing-unit); }
.mt-2 { margin-top: calc(var(--spacing-unit) * 2); }
.mt-3 { margin-top: calc(var(--spacing-unit) * 3); }
.mt-4 { margin-top: calc(var(--spacing-unit) * 4); }

.mb-1 { margin-bottom: var(--spacing-unit); }
.mb-2 { margin-bottom: calc(var(--spacing-unit) * 2); }
.mb-3 { margin-bottom: calc(var(--spacing-unit) * 3); }
.mb-4 { margin-bottom: calc(var(--spacing-unit) * 4); }

/* --------------------------------------------------------------------------
   Responsive
   -------------------------------------------------------------------------- */
@media (max-width: 768px) {
  :root {
    --spacing-unit: 0.875rem;
  }

  .projects-grid {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
    padding: calc(var(--spacing-unit) * 3) 0;
  }

  .site-header__inner {
    flex-direction: column;
    align-items: flex-start;
  }

  .page-header {
    flex-direction: column;
    align-items: flex-start;
  }

  .site-footer__inner {
    flex-direction: column;
    align-items: flex-start;
  }

  .project-ctas {
    flex-direction: column;
  }
}

/* --------------------------------------------------------------------------
   Print Styles
   -------------------------------------------------------------------------- */
@media print {
  .site-header,
  .site-footer {
    display: none;
  }

  a {
    text-decoration: none;
  }

  .project-card {
    break-inside: avoid;
  }
}