:root {
  --bg: #0f1220;
  --card: #1a1e33;
  --text: #f5f6fa;
  --muted: #9a9fbf;
  --accent: #6c7cff;
  --field: #262b4a;
  --border: rgba(255,255,255,0.08);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  background: radial-gradient(circle at top, #1c2140, #0b0d18 70%);
  font-family: "Pretendard", "Apple SD Gothic Neo", "Malgun Gothic", sans-serif;
  color: var(--text);
  line-height: 1.6;
}

/* Site header / navigation */
.site-header {
  width: 100%;
  display: flex;
  justify-content: center;
  border-bottom: 1px solid var(--border);
  background: rgba(15,18,32,0.6);
  backdrop-filter: blur(6px);
  position: sticky;
  top: 0;
  z-index: 10;
}
.site-header nav {
  width: 100%;
  max-width: 720px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 24px;
  gap: 12px;
  flex-wrap: wrap;
}
.site-header .logo {
  font-weight: 700;
  font-size: 16px;
  color: var(--text);
  text-decoration: none;
}
.site-header .links {
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
}
.site-header .links a {
  font-size: 14px;
  color: var(--muted);
  text-decoration: none;
}
.site-header .links a:hover,
.site-header .links a.active {
  color: var(--accent);
}

/* Main content wrapper */
.page {
  width: 100%;
  max-width: 480px;
  display: flex;
  flex-direction: column;
  gap: 24px;
  padding: 24px;
  margin: auto 0;
}
.page.wide { max-width: 640px; }

.card {
  width: 100%;
  background: var(--card);
  border-radius: 20px;
  padding: 32px 28px;
  box-shadow: 0 20px 60px rgba(0,0,0,0.45);
}

h1 {
  margin: 0 0 4px;
  font-size: 24px;
  text-align: center;
}
p.sub {
  margin: 0 0 24px;
  text-align: center;
  color: var(--muted);
  font-size: 14px;
}

/* Prose / article content (about, privacy, info sections) */
.prose h2 {
  font-size: 18px;
  margin: 0 0 10px;
}
.prose h2:not(:first-child) { margin-top: 28px; }
.prose p {
  font-size: 14px;
  color: var(--muted);
  margin: 0 0 10px;
}
.prose ul, .prose ol {
  font-size: 14px;
  color: var(--muted);
  margin: 0 0 10px;
  padding-left: 20px;
}
.prose li { margin-bottom: 6px; }
.prose strong { color: var(--text); }

/* Form elements */
.controls {
  display: flex;
  gap: 10px;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
  flex-wrap: wrap;
}
.controls label {
  font-size: 14px;
  color: var(--muted);
}
select, button, input, textarea {
  font-family: inherit;
}
select, button {
  font-size: 15px;
  border-radius: 10px;
  border: none;
  padding: 10px 14px;
}
select {
  background: var(--field);
  color: var(--text);
}
button {
  background: var(--accent);
  color: white;
  font-weight: 600;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}
button:hover { transform: translateY(-1px); box-shadow: 0 8px 20px rgba(108,124,255,0.4); }
button:active { transform: translateY(0); }
button:disabled { opacity: 0.6; cursor: not-allowed; transform: none; box-shadow: none; }

.field {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
label {
  font-size: 13px;
  color: var(--muted);
}
input, textarea {
  font-size: 15px;
  border-radius: 10px;
  border: none;
  padding: 12px 14px;
  background: var(--field);
  color: var(--text);
  resize: vertical;
}
input:focus, textarea:focus {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
}
textarea { min-height: 120px; }

form {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.status {
  margin-top: 14px;
  text-align: center;
  font-size: 14px;
  display: none;
}
.status.success { display: block; color: #7be495; }
.status.error { display: block; color: #ff7272; }

/* Lotto generator */
.games {
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.game-row {
  display: flex;
  align-items: center;
  gap: 10px;
  background: #14172a;
  border-radius: 14px;
  padding: 12px 14px;
  opacity: 0;
  transform: translateY(6px);
  animation: rise 0.4s ease forwards;
}
.game-row .game-label {
  font-size: 12px;
  color: var(--muted);
  width: 44px;
  flex-shrink: 0;
}
.balls {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}
.ball {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 14px;
  color: #14172a;
  box-shadow: inset 0 -3px 4px rgba(0,0,0,0.2), 0 2px 6px rgba(0,0,0,0.3);
  opacity: 0;
  transform: scale(0.4);
  animation: pop 0.35s ease forwards;
}
.ball.b1 { background: #fbc400; }
.ball.b2 { background: #69c8f2; }
.ball.b3 { background: #ff7272; }
.ball.b4 { background: #aaaaaa; }
.ball.b5 { background: #b0d840; }

@keyframes rise {
  to { opacity: 1; transform: translateY(0); }
}
@keyframes pop {
  to { opacity: 1; transform: scale(1); }
}

.empty {
  text-align: center;
  color: var(--muted);
  font-size: 14px;
  padding: 20px 0;
}

.disclaimer {
  font-size: 12px;
  color: var(--muted);
  text-align: center;
  margin: 0;
}

.back {
  display: block;
  margin-top: 20px;
  text-align: center;
  font-size: 13px;
  color: var(--muted);
  text-decoration: none;
}
.back:hover { color: var(--accent); }

/* Site footer */
.site-footer {
  width: 100%;
  border-top: 1px solid var(--border);
  padding: 24px;
  text-align: center;
}
.site-footer .links {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 10px;
}
.site-footer a {
  font-size: 13px;
  color: var(--muted);
  text-decoration: none;
}
.site-footer a:hover { color: var(--accent); }
.site-footer .copyright {
  font-size: 12px;
  color: var(--muted);
  opacity: 0.7;
}

@media (prefers-color-scheme: light) {
  body { background: radial-gradient(circle at top, #eef0ff, #f7f8fc 70%); }
  :root {
    --bg: #f7f8fc;
    --card: #ffffff;
    --text: #1a1e33;
    --muted: #6b7099;
    --field: #eef0f8;
    --border: rgba(0,0,0,0.08);
  }
  select { background: #eef0f8; }
  .game-row { background: #f4f5fb; }
  .ball { color: #1a1e33; }
  .site-header { background: rgba(247,248,252,0.75); }
}