/* London Worm Club — static stylesheet (hand-written equivalent of the React app's design system) */

:root {
  --radius: 0.5rem;

  --navy-deep: oklch(0.19 0.045 245);
  --navy: oklch(0.26 0.05 243);
  --teal: oklch(0.55 0.09 197);
  --teal-soft: oklch(0.78 0.06 190);
  --moss: oklch(0.58 0.07 155);
  --amber: oklch(0.76 0.13 72);
  --amber-foreground: oklch(0.24 0.05 60);

  --background: oklch(0.985 0.004 130);
  --foreground: oklch(0.24 0.04 244);
  --card: oklch(1 0 0);
  --primary: oklch(0.34 0.07 214);
  --primary-foreground: oklch(0.98 0.005 190);
  --secondary: oklch(0.94 0.012 195);
  --muted-foreground: oklch(0.52 0.025 235);
  --border: oklch(0.9 0.015 210);

  --gradient-deep: linear-gradient(
    155deg,
    var(--navy-deep) 0%,
    oklch(0.24 0.06 220) 55%,
    oklch(0.3 0.07 195) 100%
  );
  --shadow-card: 0 1px 2px oklch(0.24 0.04 244 / 0.05),
    0 12px 32px -18px oklch(0.24 0.04 244 / 0.28);
  --shadow-lift: 0 2px 4px oklch(0.24 0.04 244 / 0.06),
    0 24px 48px -24px oklch(0.24 0.04 244 / 0.35);

  --font-display: "Space Grotesk", ui-sans-serif, system-ui, sans-serif;
  --font-sans: "IBM Plex Sans", ui-sans-serif, system-ui, sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, monospace;
}

*,
*::before,
*::after {
  box-sizing: border-box;
  border-color: var(--border);
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background-color: var(--background);
  color: var(--foreground);
  font-family: var(--font-sans);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

h1,
h2,
h3,
h4 {
  font-family: var(--font-display);
  letter-spacing: -0.02em;
  margin: 0;
  line-height: 1.15;
}

p {
  margin: 0;
}

ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

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

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

/* ---------- primitives ---------- */

.page {
  display: flex;
  min-height: 100vh;
  flex-direction: column;
}

main {
  flex: 1;
}

.wrap {
  margin-inline: auto;
  max-width: 72rem;
  padding-inline: 1.25rem;
}

.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.bg-deep {
  background-image: var(--gradient-deep);
  color: var(--primary-foreground);
}

.grid-texture {
  background-image: radial-gradient(
    circle at 1px 1px,
    color-mix(in oklab, var(--teal) 30%, transparent) 1px,
    transparent 0
  );
  background-size: 22px 22px;
}

.surface-card {
  background-color: var(--card);
  border: 1px solid var(--border);
  border-radius: calc(var(--radius) + 4px);
  box-shadow: var(--shadow-card);
}

.teal {
  color: var(--teal);
}
.teal-soft {
  color: var(--teal-soft);
}
.muted {
  color: var(--muted-foreground);
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  border-radius: var(--radius);
  padding: 0.75rem 1.25rem;
  font-size: 0.875rem;
  font-weight: 600;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.2s ease, background-color 0.2s ease, border-color 0.2s ease;
}

.btn-amber {
  background-color: var(--amber);
  color: var(--amber-foreground);
}
.btn-amber:hover {
  transform: translateY(-2px);
}

.btn-ghost {
  border-color: color-mix(in oklab, var(--primary-foreground) 30%, transparent);
  color: var(--primary-foreground);
  font-weight: 500;
}
.btn-ghost:hover {
  background-color: color-mix(in oklab, var(--primary-foreground) 10%, transparent);
}

.btn-outline {
  border-color: var(--border);
  font-weight: 500;
  padding: 0.5rem 1rem;
}
.btn-outline:hover {
  border-color: var(--teal);
  background-color: var(--secondary);
}

.icon {
  width: 1rem;
  height: 1rem;
  flex: none;
  stroke: currentColor;
  stroke-width: 2;
  fill: none;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  margin-top: 1.5rem;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--primary);
}
.link-arrow:hover {
  color: var(--teal);
}

.worm-line {
  position: absolute;
  left: 0;
  right: 0;
  width: 100%;
  pointer-events: none;
}
.worm-line path {
  stroke: var(--teal);
  fill: none;
}

/* ---------- header ---------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  border-bottom: 1px solid color-mix(in oklab, var(--border) 70%, transparent);
  background-color: color-mix(in oklab, var(--background) 85%, transparent);
  backdrop-filter: blur(8px);
}

.header-inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 1rem;
  padding-block: 0.875rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  min-width: 0;
}
.brand img {
  height: 2.25rem;
  width: 2.25rem;
  flex: none;
  border-radius: 50%;
  object-fit: cover;
  filter: none;
}
.brand span {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.nav-desktop {
  display: none;
  align-items: center;
  gap: 0.25rem;
}
.nav-desktop a {
  border-radius: calc(var(--radius) - 2px);
  padding: 0.5rem 0.75rem;
  font-size: 0.875rem;
  color: var(--muted-foreground);
  transition: background-color 0.15s ease, color 0.15s ease;
}
.nav-desktop a:hover,
.nav-desktop a.active {
  background-color: var(--secondary);
  color: var(--foreground);
}

.nav-toggle {
  background: none;
  border: 0;
  padding: 0.5rem;
  color: var(--foreground);
  cursor: pointer;
  border-radius: calc(var(--radius) - 2px);
}

.nav-mobile {
  display: none;
  border-top: 1px solid var(--border);
  background-color: var(--background);
  padding: 0.5rem 1.25rem 1rem;
}
.nav-mobile.open {
  display: block;
}
.nav-mobile a {
  display: block;
  padding: 0.625rem 0.5rem;
  font-size: 0.875rem;
  color: var(--muted-foreground);
}
.nav-mobile a:hover,
.nav-mobile a.active {
  color: var(--foreground);
}

@media (min-width: 640px) {
  .nav-desktop {
    display: flex;
  }
  .nav-toggle,
  .nav-mobile,
  .nav-mobile.open {
    display: none;
  }
}

/* ---------- hero ---------- */

.hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
}
.hero-img {
  position: absolute;
  inset: 0;
  height: 100%;
  width: 100%;
  object-fit: cover;
  opacity: 0.4;
}
.hero-veil {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    100deg,
    oklch(0.19 0.045 245 / 0.94) 10%,
    oklch(0.19 0.045 245 / 0.6) 60%,
    oklch(0.19 0.045 245 / 0.3) 100%
  );
}
.hero-body {
  position: relative;
  padding-block: 6rem;
}
.hero-logo {
  width: min(72vw, 17rem);
  height: auto;
  margin: 2.5rem auto 0;
  border-radius: 50%;
  box-shadow: 0 1.25rem 3rem oklch(0.1 0.04 245 / 0.35);
}
.hero h1 {
  margin-top: 1.25rem;
  max-width: 48rem;
  font-size: clamp(2.25rem, 7vw, 4.5rem);
  font-weight: 600;
  line-height: 1.05;
}
.hero-sub {
  margin-top: 1.25rem;
  max-width: 42rem;
  font-family: var(--font-display);
  font-size: clamp(1.125rem, 3vw, 1.5rem);
  color: var(--teal-soft);
}
.hero-lede {
  margin-top: 1.25rem;
  max-width: 36rem;
  line-height: 1.7;
  color: color-mix(in oklab, var(--primary-foreground) 75%, transparent);
}
.hero-actions {
  margin-top: 2.5rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

@media (max-width: 799px) {
  .hero-body {
    display: flex;
    flex-direction: column;
  }
  .hero-logo {
    order: -1;
    margin: 0 auto 2.5rem;
  }
}

@media (min-width: 640px) {
  .hero-body {
    padding-block: 8rem;
  }
}

@media (min-width: 800px) {
  .hero-body {
    min-height: 35rem;
    padding-right: clamp(20rem, 32vw, 27rem);
  }
  .hero-logo {
    position: absolute;
    top: 50%;
    right: clamp(1.25rem, 6vw, 6rem);
    width: clamp(13rem, 21vw, 17rem);
    margin: 0;
    transform: translateY(-50%);
  }
}

/* page banner (meetings / about) */
.banner {
  position: relative;
  overflow: hidden;
  padding-block: 4rem;
}
.banner .grid-texture,
.join .grid-texture {
  position: absolute;
  inset: 0;
  opacity: 0.25;
  pointer-events: none;
}
.banner-inner {
  position: relative;
}
.banner h1 {
  margin-top: 1rem;
  font-size: clamp(2.25rem, 6vw, 3rem);
  font-weight: 600;
}
.banner p.lede {
  margin-top: 1.25rem;
  max-width: 42rem;
  line-height: 1.7;
  color: color-mix(in oklab, var(--primary-foreground) 75%, transparent);
}

/* ---------- sections ---------- */

.section {
  scroll-margin-top: 5rem;
  padding-block: 4rem;
}
.section.muted {
  background-color: color-mix(in oklab, var(--secondary) 40%, transparent);
}
.section-head h2 {
  margin-top: 0.75rem;
  font-size: clamp(1.75rem, 4vw, 2.25rem);
  font-weight: 600;
}
.section-head .intro {
  margin-top: 1rem;
  line-height: 1.7;
  color: var(--muted-foreground);
}

@media (min-width: 640px) {
  .section {
    padding-block: 6rem;
  }
}

.grid-3 {
  margin-top: 2.5rem;
  display: grid;
  gap: 1.25rem;
}
.grid-cards {
  margin-top: 2.5rem;
  display: grid;
  gap: 1rem;
}
.grid-stack {
  margin-top: 2rem;
  display: grid;
  gap: 1.5rem;
}
.two-col {
  margin-top: 2.5rem;
  display: grid;
  gap: 2.5rem;
  align-items: center;
}
.about-layout {
  margin-top: 0;
}
.about-copy {
  display: grid;
  gap: 2rem;
}

@media (min-width: 768px) {
  .grid-3 {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}
@media (min-width: 640px) {
  .grid-cards,
  .partners {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}
@media (min-width: 1024px) {
  .grid-cards {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .partners {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
  .two-col {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 768px) {
  .about-layout {
    grid-template-columns: minmax(0, 1.35fr) minmax(14rem, 0.65fr);
  }
}

.pillar {
  padding: 1.5rem;
}
.pillar .badge {
  display: grid;
  place-items: center;
  height: 2.75rem;
  width: 2.75rem;
  border-radius: calc(var(--radius) + 2px);
  background-color: color-mix(in oklab, var(--primary) 8%, transparent);
  color: var(--teal);
}
.pillar h3 {
  margin-top: 1.25rem;
  font-family: var(--font-display);
  font-size: 1.125rem;
  font-weight: 600;
}
.pillar p {
  margin-top: 0.5rem;
  font-size: 0.875rem;
  line-height: 1.7;
  color: var(--muted-foreground);
}

.prose {
  display: grid;
  gap: 1rem;
  line-height: 1.7;
  color: var(--muted-foreground);
}

.stats {
  display: grid;
  gap: 1rem;
}
@media (min-width: 640px) {
  .stats {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}
.rule-left {
  border-left: 2px solid color-mix(in oklab, var(--teal) 40%, transparent);
  padding-left: 1rem;
}
.rule-left .k {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--foreground);
}
.rule-left .v {
  font-size: 0.875rem;
  color: var(--muted-foreground);
}

.club-logo-feature {
  width: min(100%, 24rem);
  justify-self: center;
  overflow: hidden;
  border-radius: 50%;
  box-shadow: var(--shadow-card);
}
.club-logo-feature img {
  width: 100%;
  height: auto;
  border-radius: inherit;
}

.partners {
  margin-top: 2.5rem;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: flex-start;
  gap: 1rem;
}
.partner-slot {
  display: grid;
  place-items: center;
  width: min(100%, 14rem);
  height: 6rem;
  border: 1px solid var(--border);
  border-radius: calc(var(--radius) + 4px);
  background-color: color-mix(in oklab, var(--card) 50%, transparent);
  font-size: 0.75rem;
  color: var(--muted-foreground);
}
.partner-sponsor {
  display: grid;
  width: min(100%, 14rem);
  gap: 0.5rem;
  text-align: center;
}
.partner-sponsor .partner-slot {
  align-content: center;
  padding: 0.75rem 1rem;
}
.partner-logo {
  width: min(100%, 13rem);
  height: 2.75rem;
  object-fit: contain;
}
.sponsor-name {
  margin: 0;
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--foreground);
}

/* ---------- meeting card ---------- */

.meeting {
  overflow: hidden;
}
.meeting-grid {
  display: grid;
}
@media (min-width: 768px) {
  .meeting-grid {
    grid-template-columns: 13rem minmax(0, 1fr);
  }
}
.meeting-date {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  padding: 1.5rem;
}
.meeting-date-past {
  background-image: linear-gradient(
    155deg,
    oklch(0.34 0.07 214) 0%,
    oklch(0.42 0.08 187) 55%,
    oklch(0.44 0.07 155) 100%
  );
  color: var(--primary-foreground);
}
.meeting-date .day {
  font-family: var(--font-display);
  font-size: 3rem;
  font-weight: 600;
  line-height: 1;
}
.meeting-date .my {
  margin-top: 0.25rem;
  font-family: var(--font-display);
  font-size: 1.125rem;
}
.meeting-body {
  padding: 1.5rem;
}
.meeting-body h3 {
  font-family: var(--font-display);
  font-size: 1.375rem;
  font-weight: 600;
}
.meeting-meta {
  margin-top: 0.75rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem 1.25rem;
  font-size: 0.875rem;
  color: var(--muted-foreground);
}
.meeting-meta span {
  display: flex;
  align-items: center;
  gap: 0.375rem;
}
.meeting-meta .icon {
  color: var(--teal);
}
.agenda-label {
  text-decoration: underline;
  display: block;
  margin-top: 1.5rem;
  color: var(--muted-foreground);
}
.speakers {
  margin-top: 0.75rem;
}
.speakers li {
  padding-block: 0.625rem;
  border-top: 1px solid var(--border);
}
.speakers li:first-child {
  border-top: 0;
}
.speakers .name {
  font-size: 0.875rem;
  font-weight: 500;
}
.speakers .aff {
  font-size: 0.875rem;
  color: var(--muted-foreground);
}
.meeting-body .btn-outline {
  margin-top: 1.5rem;
}

/* ---------- people ---------- */

.person {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1.25rem;
  transition: box-shadow 0.2s ease;
}
.person:hover {
  box-shadow: var(--shadow-lift);
}
.person .initials {
  display: grid;
  place-items: center;
  height: 3rem;
  width: 3rem;
  flex: none;
  border-radius: 999px;
  border: 1px solid color-mix(in oklab, var(--teal) 30%, transparent);
  background-color: var(--secondary);
  font-family: var(--font-display);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--primary);
}
.person .person-photo {
  object-fit: cover;
}
.person .who {
  min-width: 0;
}
.person .who p {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.person .who .name {
  font-weight: 500;
}
.person .who .aff {
  font-size: 0.875rem;
  color: var(--muted-foreground);
}

.collapsible {
  margin-top: 2rem;
}
.collapsible-trigger {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: none;
  border: 0;
  padding: 0;
  font: inherit;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--muted-foreground);
  cursor: pointer;
}
.collapsible-trigger:hover {
  color: var(--foreground);
}
.collapsible-trigger .chev {
  transition: transform 0.2s ease;
}
.collapsible-trigger[aria-expanded="true"] .chev {
  transform: rotate(180deg);
}
.collapsible-content[hidden] {
  display: none;
}
.past-list {
  margin-top: 1rem;
  display: grid;
  gap: 0.5rem 2rem;
  border-left: 2px solid color-mix(in oklab, var(--teal) 30%, transparent);
  padding-left: 1.25rem;
  font-size: 0.875rem;
  color: var(--muted-foreground);
}
.past-list .n {
  color: var(--foreground);
}
@media (min-width: 640px) {
  .past-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}
@media (min-width: 1024px) {
  .past-list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

/* ---------- join ---------- */

.join {
  position: relative;
  scroll-margin-top: 5rem;
  overflow: hidden;
  padding-block: 5rem;
  text-align: center;
}
.join-inner {
  position: relative;
  margin-inline: auto;
  max-width: 48rem;
  padding-inline: 1.25rem;
}
.join h2 {
  margin-top: 1rem;
  font-size: clamp(1.75rem, 4vw, 2.25rem);
  font-weight: 600;
}
.join p.lede {
  margin: 1.25rem auto 0;
  max-width: 36rem;
  line-height: 1.7;
  color: color-mix(in oklab, var(--primary-foreground) 75%, transparent);
}
.join .btn-amber {
  margin-top: 2.25rem;
  padding: 0.75rem 1.5rem;
  box-shadow: var(--shadow-lift);
}
@media (min-width: 640px) {
  .join {
    padding-block: 7rem;
  }
}

/* ---------- footer ---------- */

.site-footer {
  position: relative;
  overflow: hidden;
}
.footer-inner {
  position: relative;
  margin-inline: auto;
  max-width: 72rem;
  padding: 3.5rem 1.25rem;
}
.footer-grid {
  display: grid;
  gap: 2.5rem;
}
@media (min-width: 768px) {
  .footer-grid {
    grid-template-columns: minmax(0, 1fr) auto;
  }
  .footer-nav {
    justify-content: flex-end;
  }
}
.footer-brand img {
  height: 2.25rem;
  width: 2.25rem;
  border-radius: 50%;
  filter: none;
}
.footer-tag {
  margin-top: 0.75rem;
  max-width: 24rem;
  font-size: 0.875rem;
  color: color-mix(in oklab, var(--primary-foreground) 70%, transparent);
}
.footer-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.5rem;
  font-size: 0.875rem;
}
.footer-nav a {
  color: color-mix(in oklab, var(--primary-foreground) 80%, transparent);
}
.footer-nav a:hover {
  color: var(--primary-foreground);
}
.footer-legal {
  margin-top: 3rem;
  border-top: 1px solid color-mix(in oklab, var(--primary-foreground) 15%, transparent);
  padding-top: 1.5rem;
  font-size: 0.75rem;
  color: color-mix(in oklab, var(--primary-foreground) 55%, transparent);
}