* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html,
body {
  height: 100%;
  font-family: "Inter", sans-serif;
}

/* VARIÁVEIS */
:root {
  --bg-dark-1: #060409;
  --navy: #0b3d91;
  --purple: #2b0f3a;
  --muted: #cfcfcf;
  --glass: rgba(255, 255, 255, 0.03);
  --stroke: rgba(255, 255, 255, 0.06);
  --accent-glow: rgba(11, 61, 145, 0.18);
  --bg-gradient: linear-gradient(135deg, var(--purple) 0%, #0c0c10 60%);
}
.light {
  --bg-dark-1: #f6f7fb;
  --muted: #111827;
  --glass: rgba(0, 0, 0, 0.03);
  --stroke: rgba(0, 0, 0, 0.06);
  --accent-glow: rgba(11, 61, 145, 0.12);
  --bg-gradient: linear-gradient(135deg, #f0f1f5 0%, #d9dce6 60%);
}

body {
  background: var(--bg-gradient);
  color: var(--muted);
  -webkit-font-smoothing: antialiased;
}

#container {
  width: 100%;
  max-width: 588px;
  margin: 36px auto;
  padding: 0 18px;
  text-align: center;
}

/* PROFILE */
#profile {
  padding: 12px 0 6px;
}
#avatar {
  width: 110px;
  height: 110px;
  border-radius: 50%;
  object-fit: cover;
  border: 4px solid rgba(255, 255, 255, 0.06);
  box-shadow: 0 8px 24px rgba(11, 61, 145, 0.08);
}
.handle {
  margin-top: 10px;
  font-weight: 700;
  letter-spacing: 0.2px;
  color: var(--muted);
}

/* SWITCH */
#switch {
  position: relative;
  width: 64px;
  margin: 18px auto;
}
#switch span {
  display: block;
  width: 64px;
  height: 28px;
  background: var(--glass);
  border-radius: 999px;
  border: 1px solid var(--stroke);
  transition: background 0.25s ease, border 0.25s ease;
}
#switch button {
  position: absolute;
  left: 4px;
  top: 50%;
  transform: translateY(-50%);
  width: 28px;
  height: 28px;
  border-radius: 50%;
  border: none;
  background: white url("./assets/moon-stars.svg") center/60% no-repeat;
  transition: transform 0.28s cubic-bezier(0.2, 0.9, 0.3, 1),
    background 0.18s ease, box-shadow 0.18s ease;
  cursor: pointer;
  box-shadow: 0 6px 18px rgba(11, 61, 145, 0.06);
}
.light #switch button {
  transform: translateY(-50%) translateX(32px);
  background: white url("./assets/sun.svg") center/60% no-repeat;
}

/* LINKS */
.links-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin: 18px 0;
  align-items: center;
}
.btn {
  display: block;
  width: 86%;
  max-width: 560px;
  padding: 14px 18px;
  background: linear-gradient(180deg, var(--glass), rgba(255, 255, 255, 0.01));
  border: 1px solid var(--stroke);
  border-radius: 12px;
  color: var(--muted);
  font-weight: 600;
  text-decoration: none;
  text-align: center;
  transition: transform 0.12s ease, box-shadow 0.12s ease, border 0.12s ease;
}
.btn:hover {
  transform: translateY(-5px);
  box-shadow: 0 18px 40px var(--accent-glow);
  border: 1.5px solid rgba(255, 255, 255, 0.12);
}
.btn.ghost {
  background: transparent;
  border-style: dashed;
  opacity: 0.95;
}

/* SOCIALS */
#social-links {
  display: flex;
  justify-content: center;
  gap: 18px;
  margin-top: 18px;
  padding-bottom: 12px;
}
#social-links a {
  color: var(--muted);
  font-size: 28px;
  transition: transform 0.12s, color 0.12s;
}
#social-links a:hover {
  transform: translateY(-4px);
  color: var(--navy);
}

/* FOOTER */
#footer {
  margin-top: 16px;
  font-size: 14px;
  color: var(--muted);
  padding: 20px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}
#footer a {
  color: var(--navy);
  text-decoration: none;
  font-weight: 600;
}