:root {
  --bg: #07070c;
  --bg-elev: #101018;
  --text: #f4f6ff;
  --muted: #a7adbe;
  --cyan: #3ad0ff;
  --violet: #8b5cff;
  --line: rgba(255, 255, 255, 0.08);
  --glow: 0 0 40px rgba(58, 208, 255, 0.28);
  --font-display: "Quicksand", "Nunito", "Segoe UI", system-ui, sans-serif;
  --font-body: "Nunito", "Segoe UI", system-ui, sans-serif;
  --radius: 1.25rem;
  --max: 68rem;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  font-family: var(--font-body);
  font-size: 1.05rem;
  line-height: 1.6;
  background: var(--bg);
  overflow-x: hidden;
}

.atmosphere {
  position: fixed;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(ellipse 70% 50% at 15% 10%, rgba(58, 208, 255, 0.22), transparent 55%),
    radial-gradient(ellipse 60% 45% at 90% 20%, rgba(139, 92, 255, 0.2), transparent 50%),
    radial-gradient(ellipse 50% 40% at 50% 100%, rgba(58, 208, 255, 0.08), transparent 60%),
    linear-gradient(180deg, #050508 0%, #0b0b14 45%, #07070c 100%);
  animation: atmosphere-shift 14s ease-in-out infinite alternate;
}

@keyframes atmosphere-shift {
  from { filter: hue-rotate(0deg) saturate(1); }
  to { filter: hue-rotate(12deg) saturate(1.08); }
}

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

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

.top {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.85rem clamp(1rem, 4vw, 2rem);
  backdrop-filter: blur(14px);
  background: rgba(7, 7, 12, 0.72);
  border-bottom: 1px solid var(--line);
}

.top-brand {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  font-family: var(--font-display);
  font-weight: 600;
  letter-spacing: 0.02em;
}

.top-brand img {
  width: auto;
  height: 2rem;
  object-fit: contain;
  filter: drop-shadow(0 0 10px rgba(58, 208, 255, 0.45));
}

.top-nav {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  font-size: 0.95rem;
  color: var(--muted);
}

.top-nav a:hover {
  color: var(--text);
}

.top-cta {
  padding: 0.45rem 0.9rem;
  border-radius: 999px;
  color: var(--text) !important;
  background: linear-gradient(135deg, rgba(58, 208, 255, 0.25), rgba(139, 92, 255, 0.3));
  border: 1px solid rgba(255, 255, 255, 0.12);
}

.hero {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: clamp(2rem, 5vw, 4rem);
  align-items: center;
  max-width: var(--max);
  margin: 0 auto;
  padding: clamp(2.5rem, 7vw, 5.5rem) clamp(1rem, 4vw, 2rem) clamp(3rem, 8vw, 6rem);
  min-height: calc(100svh - 4rem);
}

.hero-logo {
  width: min(100%, 22rem);
  margin-bottom: 1.25rem;
  filter: drop-shadow(0 0 28px rgba(58, 208, 255, 0.35));
  animation: logo-float 5s ease-in-out infinite;
}

@keyframes logo-float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-6px); }
}

.hero h1 {
  margin: 0 0 0.85rem;
  font-family: var(--font-display);
  font-size: clamp(2rem, 4.5vw, 3.35rem);
  font-weight: 600;
  line-height: 1.15;
  letter-spacing: -0.02em;
  max-width: 14ch;
}

.hero-lead {
  margin: 0 0 1.75rem;
  max-width: 36rem;
  color: var(--muted);
  font-size: 1.12rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.85rem 1.35rem;
  border-radius: 999px;
  font-family: var(--font-display);
  font-weight: 560;
  font-size: 1.02rem;
  border: 1px solid transparent;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn-primary {
  color: #061018;
  background: linear-gradient(135deg, var(--cyan), #7a9bff 55%, var(--violet));
  box-shadow: var(--glow);
}

.btn-primary:hover {
  box-shadow: 0 0 48px rgba(58, 208, 255, 0.4);
}

.btn-ghost {
  color: var(--text);
  background: rgba(255, 255, 255, 0.04);
  border-color: rgba(255, 255, 255, 0.14);
}

.btn-kofi {
  color: #1a1208;
  background: linear-gradient(135deg, #ffd27a, #ff8f6b);
  box-shadow: 0 0 30px rgba(255, 167, 90, 0.28);
}

.hero-visual {
  position: relative;
  min-height: 22rem;
  display: grid;
  place-items: center;
}

.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(8px);
  opacity: 0.7;
  animation: orb-pulse 6s ease-in-out infinite;
}

.orb-a {
  width: 16rem;
  height: 16rem;
  background: radial-gradient(circle, rgba(58, 208, 255, 0.45), transparent 70%);
  top: 10%;
  left: 8%;
}

.orb-b {
  width: 14rem;
  height: 14rem;
  background: radial-gradient(circle, rgba(139, 92, 255, 0.4), transparent 70%);
  right: 4%;
  bottom: 8%;
  animation-delay: -2s;
}

@keyframes orb-pulse {
  0%, 100% { transform: scale(1); opacity: 0.55; }
  50% { transform: scale(1.08); opacity: 0.85; }
}

.tick-card {
  position: relative;
  z-index: 1;
  width: min(100%, 18rem);
  aspect-ratio: 1;
  display: grid;
  place-items: center;
  border-radius: 2rem;
  background:
    linear-gradient(160deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.02)),
    rgba(12, 12, 20, 0.65);
  border: 1px solid rgba(255, 255, 255, 0.12);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.35), inset 0 1px 0 rgba(255, 255, 255, 0.08);
  animation: card-in 0.9s ease both;
}

@keyframes card-in {
  from { opacity: 0; transform: translateY(18px) scale(0.96); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

.tick-face {
  position: relative;
  width: 8.5rem;
  height: 8.5rem;
  border-radius: 50%;
  border: 0.55rem solid transparent;
  background:
    linear-gradient(var(--bg-elev), var(--bg-elev)) padding-box,
    linear-gradient(135deg, var(--cyan), var(--violet)) border-box;
  box-shadow: 0 0 30px rgba(58, 208, 255, 0.25);
}

.tick-hand {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0.35rem;
  height: 2.6rem;
  margin-left: -0.175rem;
  margin-top: -2.4rem;
  border-radius: 999px;
  background: linear-gradient(180deg, var(--cyan), var(--violet));
  transform-origin: 50% 90%;
  animation: tick-spin 8s linear infinite;
}

@keyframes tick-spin {
  to { transform: rotate(360deg); }
}

.tick-label {
  position: absolute;
  bottom: 1.35rem;
  margin: 0;
  font-family: var(--font-display);
  font-size: 0.95rem;
  color: var(--muted);
  letter-spacing: 0.04em;
}

.section {
  max-width: var(--max);
  margin: 0 auto;
  padding: clamp(3rem, 8vw, 5.5rem) clamp(1rem, 4vw, 2rem);
  border-top: 1px solid var(--line);
}

.section-tight {
  padding-top: clamp(2rem, 5vw, 3.5rem);
  padding-bottom: clamp(2rem, 5vw, 3.5rem);
}

.eyebrow {
  margin: 0 0 0.65rem;
  font-family: var(--font-display);
  font-size: 0.85rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--cyan);
}

.section h2 {
  margin: 0 0 0.85rem;
  font-family: var(--font-display);
  font-size: clamp(1.7rem, 3.4vw, 2.5rem);
  font-weight: 600;
  line-height: 1.2;
  max-width: 18ch;
}

.section-lead {
  margin: 0 0 1.75rem;
  max-width: 38rem;
  color: var(--muted);
}

.perks {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.25rem 1.75rem;
}

.perks li {
  padding: 0.25rem 0;
  border-top: 1px solid var(--line);
  padding-top: 1rem;
}

.perks strong {
  display: block;
  margin-bottom: 0.35rem;
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 560;
}

.perks span {
  color: var(--muted);
}

.donate {
  text-align: left;
}

.donate-note {
  margin: 1rem 0 0;
  color: var(--muted);
  font-size: 0.95rem;
}

.foot {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  max-width: var(--max);
  margin: 0 auto;
  padding: 1.75rem clamp(1rem, 4vw, 2rem) 2.5rem;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.95rem;
}

.foot-brand {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--text);
  font-family: var(--font-display);
  font-weight: 600;
}

.foot-brand img {
  width: auto;
  height: 1.75rem;
  object-fit: contain;
}

.foot-links {
  display: flex;
  gap: 1rem;
}

.foot-links a:hover {
  color: var(--text);
}

.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: none;
}

@media (max-width: 860px) {
  .hero {
    grid-template-columns: 1fr;
    min-height: auto;
    padding-top: 2.5rem;
  }

  .hero h1 {
    max-width: none;
  }

  .hero-visual {
    order: -1;
    min-height: 16rem;
  }

  .tick-card {
    width: min(100%, 14rem);
  }

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

  .top-nav a:not(.top-cta) {
    display: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }
}