*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg: #f5f5f5;
  --text: #111111;
  --muted: #666666;
  --toggle-bg: #ffffff;
  --toggle-border: rgba(0, 0, 0, 0.12);
  --toggle-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
}

[data-theme="dark"] {
  --bg: #0a0a0a;
  --text: #f5f5f5;
  --muted: #aaaaaa;
  --toggle-bg: #1a1a1a;
  --toggle-border: rgba(255, 255, 255, 0.12);
  --toggle-shadow: 0 2px 12px rgba(0, 0, 0, 0.4);
}

html, body { height: 100%; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  transition: background 0.25s ease, color 0.25s ease;
}

.page {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2rem;
  padding: 2rem;
}

.logo-wrap { width: min(90vw, 640px); }
.logo { display: block; width: 100%; height: auto; }
.logo-dark { display: none; }
[data-theme="dark"] .logo-light { display: none; }
[data-theme="dark"] .logo-dark { display: block; }

.coming-soon {
  font-size: clamp(0.875rem, 2vw, 1rem);
  font-weight: 500;
  letter-spacing: 0.35em;
  text-transform: uppercase;
  color: var(--muted);
}

.theme-toggle {
  position: fixed;
  top: 1.25rem;
  right: 1.25rem;
  width: 2.75rem;
  height: 2.75rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--toggle-border);
  border-radius: 50%;
  background: var(--toggle-bg);
  color: var(--text);
  box-shadow: var(--toggle-shadow);
  cursor: pointer;
  transition: background 0.25s ease, border-color 0.25s ease, transform 0.15s ease;
}

.theme-toggle:hover { transform: scale(1.05); }
.theme-toggle svg { width: 1.15rem; height: 1.15rem; }
.icon-moon { display: none; }
[data-theme="dark"] .icon-sun { display: none; }
[data-theme="dark"] .icon-moon { display: block; }