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

:root {
  --black: #0a0a0a;
  --white: #f0f0f0;
  --accent: #ff3e00;
  --border: 3px solid var(--black);
  --border-thick: 5px solid var(--black);
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: "JetBrains Mono", "Courier New", monospace;
  color: var(--black);
  background: var(--white);
  line-height: 1.6;
  font-size: 16px;
}

a {
  color: var(--black);
  text-decoration: underline;
  text-decoration-thickness: 2px;
  text-underline-offset: 3px;
}

a:hover {
  color: var(--accent);
  text-decoration-color: var(--white);
}

/* === Layout === */
.container {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 24px;
}

/* === Header / Hero === */
.hero {
  background: var(--black);
  color: var(--white);
  padding: 80px 0 60px;
  text-align: left;
  border-bottom: var(--border-thick);
  border-color: var(--accent);
}

.hero__logo {
  width: 120px;
  height: 120px;
  border-radius: 0;
  object-fit: cover;
  border: var(--border-thick);
  border-color: var(--accent);
  box-shadow: none;
  margin-bottom: 24px;
  filter: grayscale(100%) contrast(1.2);
}

.hero h1 {
  font-family: "JetBrains Mono", "Courier New", monospace;
  font-size: 4rem;
  font-weight: 700;
  letter-spacing: -2px;
  margin-bottom: 8px;
  text-transform: uppercase;
  line-height: 1;
}

.hero h1 .lambda {
  color: var(--accent);
}

.hero__tagline {
  font-size: 1rem;
  color: #aaa;
  max-width: 600px;
  margin: 16px 0 40px;
  text-transform: uppercase;
  letter-spacing: 1px;
  font-size: 0.85rem;
}

.hero__cta {
  display: inline-block;
  background: var(--accent);
  color: var(--white);
  font-weight: 700;
  padding: 14px 32px;
  border: var(--border);
  border-color: var(--accent);
  text-decoration: none;
  text-transform: uppercase;
  letter-spacing: 2px;
  font-size: 0.85rem;
  transition: background 0.1s, color 0.1s;
}

.hero__cta:hover {
  background: var(--white);
  color: var(--black);
  border-color: var(--white);
}

.hero__next-event {
  background: transparent;
  border: var(--border);
  border-color: #444;
  padding: 24px 28px;
  max-width: 560px;
}

.hero__next-label {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 3px;
  color: var(--accent);
  margin-bottom: 8px;
}

.hero__next-title {
  display: block;
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--white);
  text-decoration: none;
  margin-bottom: 4px;
}

.hero__next-title:hover {
  color: var(--accent);
}

.hero__next-desc {
  color: #888;
  font-size: 0.85rem;
  margin-bottom: 20px;
}

/* === Nav === */
.nav {
  background: var(--white);
  border-bottom: var(--border-thick);
  position: sticky;
  top: 0;
  z-index: 10;
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 0;
}

.nav__brand {
  font-weight: 700;
  font-size: 1.1rem;
  text-decoration: none;
  text-transform: uppercase;
  letter-spacing: 2px;
}

.nav__links {
  display: flex;
  gap: 24px;
  list-style: none;
}

.nav__links a {
  text-decoration: none;
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--black);
}

.nav__links a:hover {
  color: var(--accent);
}

/* === Sections === */
section {
  padding: 64px 0;
}

section:nth-child(even):not(.join) {
  background: var(--white);
  border-top: var(--border);
  border-bottom: var(--border);
}

.section__title {
  font-size: 2rem;
  margin-bottom: 12px;
  text-transform: uppercase;
  letter-spacing: 2px;
  position: relative;
  display: inline-block;
}

.section__title::after {
  content: "";
  display: block;
  width: 60px;
  height: 5px;
  background: var(--accent);
  margin-top: 8px;
}

.section__subtitle {
  color: #555;
  margin-bottom: 40px;
  max-width: 600px;
  font-size: 0.9rem;
}

/* === About === */
.about__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  margin-top: 32px;
}

.about__card {
  background: var(--white);
  border: var(--border);
  padding: 28px;
  margin: -1.5px;
  transition: background 0.1s;
}

.about__card:hover {
  background: var(--black);
  color: var(--white);
}

.about__card:hover .icon {
  color: var(--accent);
}

.about__card h3 {
  font-size: 1rem;
  margin-bottom: 8px;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.about__card .icon {
  font-size: 2.4rem;
  margin-bottom: 12px;
  display: block;
  font-weight: 700;
}

.about__card p {
  font-size: 0.85rem;
  line-height: 1.5;
}

/* === Topics === */
.topics__list {
  display: flex;
  flex-wrap: wrap;
  gap: 0;
  margin-top: 24px;
}

.topic-tag {
  background: transparent;
  border: var(--border);
  padding: 10px 20px;
  font-size: 0.8rem;
  font-weight: 700;
  white-space: nowrap;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin: -1.5px;
  transition: background 0.1s, color 0.1s;
  cursor: default;
}

.topic-tag:hover {
  background: var(--black);
  color: var(--white);
}

/* === Workshops / Events === */
.events__list {
  display: flex;
  flex-direction: column;
  gap: 0;
  margin-top: 24px;
}

.event-card {
  background: var(--white);
  border: var(--border);
  padding: 20px 24px;
  display: flex;
  align-items: flex-start;
  gap: 20px;
  text-decoration: none;
  color: var(--black);
  margin-top: -3px;
  transition: background 0.1s, color 0.1s;
}

.event-card:hover {
  background: var(--black);
  color: var(--white);
}

.event-card:hover .event-card__date {
  border-color: var(--white);
  color: var(--accent);
}

.event-card--upcoming:hover .event-card__date {
  color: var(--white);
}

.event-card:hover .event-card__content p {
  color: #aaa;
}

.event-card--upcoming {
  border-color: var(--accent);
  border-width: 3px;
  background: var(--black);
  color: var(--white);
}

.event-card--upcoming .event-card__date {
  background: var(--accent);
  color: var(--white);
  border-color: var(--accent);
}

a.event-card--upcoming:hover .event-card__date {
  color: var(--white);
}

.event-card--upcoming .event-card__content p {
  color: #aaa;
}

.event-card__date {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--black);
  background: transparent;
  border: var(--border);
  padding: 8px 12px;
  white-space: nowrap;
  text-align: center;
  min-width: 90px;
  text-transform: uppercase;
  letter-spacing: 1px;
  flex-shrink: 0;
}

.event-card__content h3 {
  font-size: 1rem;
  margin-bottom: 4px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.event-card__content p {
  color: #555;
  font-size: 0.85rem;
}

/* === Join / CTA === */
.join {
  text-align: center;
  background: var(--black);
  color: var(--white);
  border-top: 5px solid var(--accent);
}

.join .section__title {
  color: var(--white);
}

.join .section__subtitle {
  color: #aaa;
  margin-left: auto;
  margin-right: auto;
}

.join__links {
  display: flex;
  justify-content: center;
  gap: 0;
  margin-top: 28px;
  flex-wrap: wrap;
}

.join__link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: transparent;
  border: var(--border);
  border-color: #444;
  color: var(--white);
  padding: 14px 28px;
  text-decoration: none;
  font-weight: 700;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin: -1.5px;
  transition: background 0.1s, border-color 0.1s;
}

.join__link:hover {
  border-color: var(--accent);
  background: var(--accent);
  color: var(--white);
}

/* === Footer === */
.footer {
  background: var(--white);
  color: var(--black);
  padding: 24px 0;
  text-align: center;
  font-size: 0.8rem;
  border-top: var(--border-thick);
  text-transform: uppercase;
  letter-spacing: 2px;
}

.footer a {
  color: var(--accent);
}

/* === Code decoration === */
.code-bg {
  position: relative;
  overflow: hidden;
}

.code-bg > * {
  position: relative;
  z-index: 1;
}

.code-snippets {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  display: grid;
  grid-template-columns: 1fr 1fr 1fr 1fr;
  gap: 0;
  padding: 20px;
  opacity: 0.15;
  mask-image: none;
  -webkit-mask-image: none;
}

.code-snippets pre {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.6rem;
  line-height: 1.4;
  white-space: pre;
  overflow: hidden;
  margin: 0;
  text-align: left;
  color: var(--white);
}

/* Syntax highlighting - monochrome brutalist */
.code-snippets .kw { color: var(--accent); }
.code-snippets .fn { color: #ccc; }
.code-snippets .ty { color: #999; }
.code-snippets .str { color: #ccc; }
.code-snippets .num { color: var(--accent); }
.code-snippets .op { color: #888; }
.code-snippets .cm { color: #555; font-style: normal; }
.code-snippets .var { color: #aaa; }

@media (max-width: 700px) {
  .code-snippets {
    grid-template-columns: 1fr 1fr;
  }
}

/* === Event page overrides === */
.event-hero {
  background: var(--black);
  color: var(--white);
  padding: 48px 0 40px;
  border-bottom: 5px solid var(--accent);
}

.event-hero__back {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  text-decoration: none;
  font-size: 0.8rem;
  color: #888;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 20px;
}

.event-hero__back:hover {
  color: var(--accent);
}

.event-hero h1 {
  font-size: 2.2rem;
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 16px;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.event-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  color: #aaa;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.event-meta__item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.event-body {
  padding: 48px 0 64px;
  border-top: var(--border);
}

.event-body__content {
  max-width: 720px;
  line-height: 1.7;
}

.event-body__content h2 {
  font-size: 1.3rem;
  margin: 40px 0 12px;
  text-transform: uppercase;
  letter-spacing: 1px;
  border-bottom: var(--border);
  padding-bottom: 8px;
}

.event-body__content p {
  margin-bottom: 16px;
  font-size: 0.92rem;
}

.event-body__content strong {
  font-weight: 700;
}

.event-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 24px;
  padding: 12px 24px;
  background: var(--accent);
  border: var(--border);
  border-color: var(--accent);
  color: var(--white);
  text-decoration: none;
  font-weight: 700;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 2px;
}

.event-link:hover {
  background: var(--black);
  color: var(--accent);
  border-color: var(--accent);
}

/* === Responsive === */
@media (max-width: 700px) {
  .hero h1 {
    font-size: 2.5rem;
  }

  .hero__logo {
    width: 80px;
    height: 80px;
  }

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

  .event-card {
    flex-direction: column;
  }

  .nav__links {
    gap: 12px;
  }

  .nav__links a {
    font-size: 0.7rem;
  }

  .event-hero h1 {
    font-size: 1.5rem;
  }

  .event-meta {
    flex-direction: column;
    gap: 8px;
  }
}