:root {
  --ink: #111517;
  --ink-soft: #3d4547;
  --paper: #f4f0e6;
  --paper-deep: #e5dfd0;
  --night: #0b1014;
  --night-raised: #141b20;
  --green: #a9ff68;
  --green-dark: #25663a;
  --orange: #ff6b35;
  --yellow: #f4d35e;
  --blue: #73c8ff;
  --line: rgba(17, 21, 23, .16);
  --shadow: 0 24px 70px rgba(0, 0, 0, .22);
  --mono: "Cascadia Mono", "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  --sans: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; scroll-padding-top: 5rem; }

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: var(--sans);
  line-height: 1.6;
}

a { color: inherit; }

.skip-link {
  position: fixed;
  z-index: 100;
  top: .75rem;
  left: .75rem;
  padding: .7rem 1rem;
  color: var(--night);
  background: var(--green);
  font-weight: 800;
  transform: translateY(-150%);
  transition: transform .2s ease;
}

.skip-link:focus { transform: translateY(0); }

:focus-visible { outline: 3px solid var(--blue); outline-offset: 4px; }

.site-header {
  min-height: 76px;
  padding: 0 clamp(1.25rem, 5vw, 5rem);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  border-bottom: 1px solid var(--line);
  background: rgba(244, 240, 230, .92);
}

.brand {
  display: flex;
  align-items: center;
  gap: .8rem;
  text-decoration: none;
  font-size: .82rem;
  line-height: 1.2;
  letter-spacing: .02em;
}

.brand strong { display: block; font-size: .95rem; }

.brand-mark {
  width: 42px;
  height: 42px;
  display: inline-grid;
  place-items: center;
  flex: 0 0 auto;
  color: var(--green);
  background: var(--night);
  border-radius: 4px;
  font: 800 1rem var(--mono);
}

.site-header nav { display: flex; align-self: stretch; }

.site-header nav a {
  position: relative;
  min-width: 96px;
  padding: 0 1rem;
  display: grid;
  place-items: center;
  text-decoration: none;
  font-size: .78rem;
  font-weight: 750;
  letter-spacing: .05em;
  text-transform: uppercase;
}

.site-header nav a::after {
  content: "";
  position: absolute;
  right: 1rem;
  bottom: 0;
  left: 1rem;
  height: 3px;
  background: var(--orange);
  transform: scaleX(0);
  transition: transform .2s ease;
}

.site-header nav a:hover::after, .site-header nav a.active::after { transform: scaleX(1); }

.hero {
  position: relative;
  min-height: calc(100vh - 76px);
  padding: clamp(4rem, 9vw, 8rem) clamp(1.25rem, 8vw, 9rem);
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(280px, .7fr);
  align-items: center;
  gap: clamp(3rem, 9vw, 9rem);
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  top: -170px;
  right: -150px;
  width: 460px;
  height: 460px;
  border: 1px solid rgba(17, 21, 23, .1);
  border-radius: 50%;
  box-shadow: 0 0 0 70px rgba(17, 21, 23, .025), 0 0 0 140px rgba(17, 21, 23, .02);
}

.hero-copy, .support-note { position: relative; z-index: 1; }

.eyebrow {
  margin: 0 0 1.6rem;
  display: flex;
  align-items: center;
  gap: .7rem;
  color: var(--ink-soft);
  font: 750 .72rem var(--mono);
  letter-spacing: .14em;
  text-transform: uppercase;
}

.eyebrow > span { width: 28px; height: 2px; background: var(--orange); }

h1, h2, h3, p { margin-top: 0; }

h1 {
  max-width: 700px;
  margin-bottom: 1.4rem;
  font-size: clamp(3rem, 7vw, 6.5rem);
  line-height: .96;
  letter-spacing: -.07em;
}

h1 em, h2 em { color: var(--orange); font-style: normal; }

.hero-lead { margin-bottom: .85rem; font-size: clamp(1.25rem, 2vw, 1.7rem); font-weight: 750; }

.hero-description { max-width: 600px; color: var(--ink-soft); font-size: 1.08rem; }

.primary-link, .donate-button {
  display: inline-flex;
  align-items: center;
  gap: .8rem;
  margin-top: 1.4rem;
  padding: .9rem 1.2rem;
  color: var(--night);
  background: var(--green);
  box-shadow: 5px 5px 0 var(--night);
  font: 800 .78rem var(--mono);
  letter-spacing: .04em;
  text-decoration: none;
  text-transform: uppercase;
  transition: transform .2s ease, box-shadow .2s ease;
}

.primary-link:hover, .donate-button:hover { transform: translate(3px, 3px); box-shadow: 2px 2px 0 var(--night); }

.secondary-link {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  margin: 1.8rem 0 0 1.3rem;
  color: var(--ink-soft);
  font: 800 .74rem var(--mono);
  letter-spacing: .04em;
  text-decoration-color: var(--orange);
  text-decoration-thickness: 2px;
  text-underline-offset: .35rem;
  text-transform: uppercase;
}

.support-note {
  padding: clamp(2rem, 5vw, 3.5rem);
  color: var(--paper);
  background: var(--night);
  box-shadow: var(--shadow);
  transform: rotate(2deg);
}

.note-label, .card-kicker { font: 750 .7rem var(--mono); letter-spacing: .14em; }
.note-label { color: var(--green); }

.note-mark { margin: 2rem 0 1.5rem; color: var(--orange); font: 900 clamp(3rem, 7vw, 5rem) var(--mono); letter-spacing: -.2em; }

.support-note p { margin-bottom: 2rem; font-size: clamp(1.25rem, 2vw, 1.65rem); line-height: 1.35; }
.note-signature { color: #b9c2c5; font-size: .88rem; }

.donation-section { padding: clamp(4.5rem, 10vw, 8rem) clamp(1.25rem, 8vw, 9rem); color: var(--paper); background: var(--night); }
.eyebrow.light { color: #b9c2c5; }
.eyebrow.light > span { background: var(--green); }

.section-heading { max-width: 780px; margin-bottom: 3.5rem; }

h2 { margin-bottom: 0; font-size: clamp(2.25rem, 5vw, 4.5rem); line-height: 1; letter-spacing: -.055em; }
h2 em { color: var(--green); }

.donation-options { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1.5rem; }

.donation-card {
  position: relative;
  min-height: 340px;
  padding: clamp(1.8rem, 4vw, 3rem);
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  border: 1px solid rgba(244, 240, 230, .22);
}

.paypal-card { background: var(--night-raised); }
.mercado-card { color: var(--night); background: var(--yellow); }
.card-number { margin-bottom: auto; color: var(--orange); font: 800 1.15rem var(--mono); }
.mercado-card .card-number { color: var(--green-dark); }
.card-kicker { margin: 2rem 0 .65rem; opacity: .78; }

.donation-card h3 { margin-bottom: .6rem; font-size: clamp(2rem, 4vw, 3rem); line-height: 1; letter-spacing: -.05em; }
.donation-card p:not(.card-kicker) { max-width: 440px; margin-bottom: 0; }

.donate-button { margin-top: 1.8rem; background: var(--orange); }

.alias-box {
  width: 100%;
  margin-top: 1.8rem;
  padding: .95rem 1rem;
  border: 2px dashed rgba(17, 21, 23, .5);
  font: 800 clamp(1rem, 2vw, 1.25rem) var(--mono);
  letter-spacing: .03em;
}

.site-footer {
  min-height: 130px;
  padding: 2rem clamp(1.25rem, 5vw, 5rem);
  display: flex;
  align-items: center;
  gap: 1rem;
  color: #b9c2c5;
  background: #06090c;
  font-size: .85rem;
}

.site-footer p { margin: 0; }
.site-footer a { margin-left: auto; color: var(--paper); text-decoration-color: var(--green); text-underline-offset: .3rem; }

@media (max-width: 720px) {
  .site-header { align-items: flex-start; flex-direction: column; gap: 1rem; padding-top: 1rem; }
  .site-header nav { width: 100%; min-height: 45px; }
  .site-header nav a { min-width: 0; flex: 1; padding: 0 .4rem; font-size: .65rem; }
  .hero { min-height: auto; grid-template-columns: 1fr; padding-bottom: 5rem; }
  .support-note { max-width: 460px; }
  .donation-options { grid-template-columns: 1fr; }
  .secondary-link { display: flex; width: max-content; margin-left: 0; }
  .site-footer { align-items: flex-start; flex-wrap: wrap; }
  .site-footer a { width: 100%; margin-left: 0; }
}