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

:root {
  --neon: #00FF88;
  --neon-dim: rgba(0, 255, 136, 0.15);
  --black: #0a0a0a;
  --white: #ffffff;
  --gray-100: #f5f5f5;
  --gray-200: #e8e8e8;
  --gray-400: #9ca3af;
  --gray-600: #4b5563;
  --grid-color: rgba(0, 0, 0, 0.055);
  --font-sans: 'Space Grotesk', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  background-color: var(--white);
  color: var(--black);
  min-height: 100vh;
  overflow-x: hidden;
  position: relative;
}

/* ─── Background Grid ───────────────────────────────────────── */
.bg-grid {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background-image:
    linear-gradient(var(--grid-color) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-color) 1px, transparent 1px);
  background-size: 40px 40px;
}

/* ─── Decorações técnicas ───────────────────────────────────── */
.bg-decorations {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
}

.formula {
  position: absolute;
  font-family: var(--font-mono);
  font-size: 11px;
  color: rgba(0, 0, 0, 0.12);
  white-space: nowrap;
  user-select: none;
}

.f1 { top: 8%;  left: 3%; }
.f2 { top: 18%; right: 4%; }
.f3 { top: 32%; left: 2%; }
.f4 { top: 45%; right: 3%; }
.f5 { top: 58%; left: 4%; }
.f6 { top: 70%; right: 5%; }
.f7 { top: 82%; left: 3%; }
.f8 { top: 90%; right: 4%; }

.geo-circle {
  position: absolute;
  border-radius: 50%;
  border: 1px solid rgba(0, 0, 0, 0.07);
}
.c1 { width: 160px; height: 160px; top: 5%;  right: 5%; }
.c2 { width: 80px;  height: 80px;  bottom: 15%; left: 3%; }

.geo-rect {
  position: absolute;
  border: 1px solid rgba(0, 0, 0, 0.07);
}
.r1 { width: 50px; height: 50px; top: 25%; left: 2%; }
.r2 { width: 30px; height: 30px; bottom: 30%; right: 6%; }

.geo-cross {
  position: absolute;
  width: 20px;
  height: 20px;
}
.geo-cross::before,
.geo-cross::after {
  content: '';
  position: absolute;
  background: rgba(0, 0, 0, 0.1);
}
.geo-cross::before { top: 50%; left: 0; right: 0; height: 1px; transform: translateY(-50%); }
.geo-cross::after  { left: 50%; top: 0; bottom: 0; width: 1px; transform: translateX(-50%); }
.x1 { top: 40%; left: 6%; }
.x2 { top: 65%; right: 7%; }

.corner-mark {
  position: absolute;
  font-family: var(--font-mono);
  font-size: 10px;
  color: rgba(0, 0, 0, 0.1);
  white-space: nowrap;
}
.tl { top: 16px; left: 16px; }
.tr { top: 16px; right: 16px; }
.bl { bottom: 16px; left: 16px; }
.br { bottom: 16px; right: 16px; }

/* ─── Layout Principal ──────────────────────────────────────── */
.container {
  position: relative;
  z-index: 1;
  max-width: 520px;
  margin: 0 auto;
  padding: 48px 20px 80px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0;
}

/* ─── Perfil ────────────────────────────────────────────────── */
.profile {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  width: 100%;
  margin-bottom: 28px;
}

.avatar-wrapper {
  position: relative;
  width: 96px;
  height: 96px;
}

.avatar {
  width: 96px;
  height: 96px;
  border-radius: 50%;
  object-fit: cover;
  border: 2.5px solid var(--black);
  background: var(--white);
  display: block;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.avatar:hover {
  transform: scale(1.04);
  box-shadow: 0 0 0 3px var(--neon), 0 0 20px var(--neon-dim);
}

.avatar-dot {
  position: absolute;
  bottom: 4px;
  right: 4px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--neon);
  border: 2px solid var(--white);
  box-shadow: 0 0 8px var(--neon);
  animation: pulse-dot 2s infinite;
}

@keyframes pulse-dot {
  0%, 100% { box-shadow: 0 0 8px var(--neon); }
  50%       { box-shadow: 0 0 16px var(--neon), 0 0 24px var(--neon-dim); }
}

.display-name {
  font-family: var(--font-sans);
  font-size: clamp(26px, 6vw, 36px);
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--black);
  line-height: 1;
}

.bio {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--gray-600);
  letter-spacing: 0.02em;
}

.divider {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  margin-top: 8px;
}

.divider-line {
  flex: 1;
  height: 1px;
  background: var(--gray-200);
}

.divider-label {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--gray-400);
  white-space: nowrap;
}

/* ─── Lista de Links ────────────────────────────────────────── */
.links-list {
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 40px;
}

.link-card {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 18px;
  background: var(--white);
  border: 1.5px solid var(--gray-200);
  border-radius: 10px;
  text-decoration: none;
  color: var(--black);
  transition:
    border-color 0.2s ease,
    box-shadow 0.2s ease,
    transform 0.15s ease,
    background 0.2s ease;
  cursor: pointer;
  position: relative;
  overflow: hidden;
}

.link-card::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--neon);
  transform: scaleY(0);
  transform-origin: center;
  transition: transform 0.2s ease;
  border-radius: 0 2px 2px 0;
}

.link-card:hover {
  border-color: var(--black);
  box-shadow: 4px 4px 0 var(--black);
  transform: translate(-2px, -2px);
  background: var(--gray-100);
}

.link-card:hover::before {
  transform: scaleY(1);
}

.link-card:active {
  transform: translate(0, 0);
  box-shadow: none;
}

.link-icon {
  font-size: 22px;
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--gray-100);
  border-radius: 8px;
  flex-shrink: 0;
  transition: background 0.2s ease;
}

.link-card:hover .link-icon {
  background: var(--neon-dim);
}

.link-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
}

.link-title {
  font-weight: 600;
  font-size: 15px;
  color: var(--black);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.link-desc {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--gray-400);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.link-arrow {
  color: var(--gray-400);
  flex-shrink: 0;
  transition: color 0.2s ease, transform 0.2s ease;
}

.link-card:hover .link-arrow {
  color: var(--black);
  transform: translate(2px, -2px);
}

/* ─── Rodapé ────────────────────────────────────────────────── */
.footer {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
  width: 100%;
}

.social-icons {
  display: flex;
  gap: 10px;
  align-items: center;
}

.social-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border-radius: 8px;
  border: 1.5px solid var(--gray-200);
  color: var(--gray-600);
  text-decoration: none;
  transition:
    border-color 0.2s ease,
    color 0.2s ease,
    background 0.2s ease,
    box-shadow 0.2s ease,
    transform 0.15s ease;
}

.social-btn:hover {
  border-color: var(--black);
  color: var(--black);
  background: var(--gray-100);
  box-shadow: 2px 2px 0 var(--black);
  transform: translate(-1px, -1px);
}

.social-btn:active {
  transform: translate(0, 0);
  box-shadow: none;
}

.footer-brand {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--gray-400);
  letter-spacing: 0.1em;
}

.footer-sub {
  font-family: var(--font-mono);
  font-size: 10px;
  color: rgba(0, 0, 0, 0.2);
}

/* ─── Animação de entrada ───────────────────────────────────── */
@keyframes fade-up {
  from { opacity: 0; transform: translateY(16px); }
  to   { opacity: 1; transform: translateY(0); }
}

.profile {
  animation: fade-up 0.5s ease both;
}

.link-card {
  animation: fade-up 0.4s ease both;
}

.link-card:nth-child(1) { animation-delay: 0.1s; }
.link-card:nth-child(2) { animation-delay: 0.18s; }
.link-card:nth-child(3) { animation-delay: 0.26s; }
.link-card:nth-child(4) { animation-delay: 0.34s; }
.link-card:nth-child(5) { animation-delay: 0.42s; }
.link-card:nth-child(6) { animation-delay: 0.50s; }

.footer {
  animation: fade-up 0.5s 0.5s ease both;
}

/* ─── Responsivo ────────────────────────────────────────────── */
@media (max-width: 480px) {
  .container {
    padding: 36px 16px 60px;
  }

  .formula {
    display: none;
  }

  .corner-mark {
    display: none;
  }

  .geo-circle.c1 {
    width: 100px;
    height: 100px;
  }
}

/* ─── Acessibilidade ────────────────────────────────────────── */
:focus-visible {
  outline: 2px solid var(--neon);
  outline-offset: 3px;
  border-radius: 6px;
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}