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

:root {
  --color-bg: #f9fafb;
  --color-surface: #ffffff;
  --color-text: #1f2937;
  --color-text-secondary: #6b7280;
  --color-primary: #2563eb;
  --color-primary-hover: #1d4ed8;
  --color-border: #e5e7eb;
  --color-accent: #f59e0b;
  --radius: 12px;
  --shadow: 0 1px 3px rgba(0,0,0,0.08), 0 1px 2px rgba(0,0,0,0.06);
  --shadow-lg: 0 4px 12px rgba(0,0,0,0.1);
  --max-width: 960px;
}

html { font-size: 16px; scroll-behavior: smooth; }

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Noto Sans KR', sans-serif;
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

a { color: var(--color-primary); text-decoration: none; }
a:hover { color: var(--color-primary-hover); }

/* === Header === */
.header {
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0.75rem 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-text);
}
.logo:hover { color: var(--color-primary); }

.lang-switch { display: flex; gap: 0.25rem; }

.lang-btn {
  padding: 0.25rem 0.625rem;
  border: 1px solid var(--color-border);
  border-radius: 6px;
  background: var(--color-surface);
  color: var(--color-text-secondary);
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s;
}
.lang-btn:hover { border-color: var(--color-primary); color: var(--color-primary); }
.lang-btn.active {
  background: var(--color-primary);
  color: #fff;
  border-color: var(--color-primary);
}

/* === Hero === */
.hero {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 3rem 1.5rem 2rem;
  text-align: center;
}
.hero h1 { font-size: 2rem; margin-bottom: 0.5rem; }
.hero p { color: var(--color-text-secondary); font-size: 1.1rem; }

/* === Tools Grid === */
.tools-grid {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem 3rem;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.5rem;
}

/* === Card === */
.tool-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1.5rem;
  box-shadow: var(--shadow);
  transition: transform 0.2s, box-shadow 0.2s;
  display: flex;
  flex-direction: column;
  text-decoration: none;
  color: inherit;
}
.tool-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
  color: inherit;
}

.tool-card .card-icon {
  font-size: 2.5rem;
  margin-bottom: 0.75rem;
}

.tool-card h3 {
  font-size: 1.125rem;
  margin-bottom: 0.5rem;
}

.tool-card p {
  color: var(--color-text-secondary);
  font-size: 0.9rem;
  flex: 1;
}

.tool-card .card-tag {
  display: inline-block;
  margin-top: 0.75rem;
  padding: 0.2rem 0.5rem;
  background: #eef2ff;
  color: var(--color-primary);
  border-radius: 4px;
  font-size: 0.75rem;
  font-weight: 600;
  width: fit-content;
}

/* === Detail Page === */
.page-content {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 2rem 1.5rem 3rem;
}

.page-content h1 {
  font-size: 1.75rem;
  margin-bottom: 0.5rem;
}

.page-content .subtitle {
  color: var(--color-text-secondary);
  margin-bottom: 2rem;
  font-size: 1.05rem;
}

.page-content h2 {
  font-size: 1.35rem;
  margin: 2.5rem 0 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid var(--color-border);
}

.page-content h3 {
  font-size: 1.1rem;
  margin: 1.5rem 0 0.75rem;
}

.page-content p, .page-content li {
  line-height: 1.8;
  margin-bottom: 0.5rem;
}

.page-content ul, .page-content ol {
  padding-left: 1.5rem;
  margin-bottom: 1rem;
}

/* Steps */
.steps { list-style: none; padding: 0; counter-reset: step; }
.steps li {
  counter-increment: step;
  padding: 0.75rem 0 0.75rem 3rem;
  position: relative;
  border-left: 2px solid var(--color-border);
  margin-left: 1rem;
}
.steps li::before {
  content: counter(step);
  position: absolute;
  left: -0.85rem;
  top: 0.65rem;
  width: 1.5rem;
  height: 1.5rem;
  background: var(--color-primary);
  color: #fff;
  border-radius: 50%;
  font-size: 0.8rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
}
.steps li:last-child { border-left-color: transparent; }

/* Note box */
.note {
  background: #fffbeb;
  border-left: 4px solid var(--color-accent);
  padding: 1rem 1.25rem;
  border-radius: 0 8px 8px 0;
  margin: 1rem 0;
  font-size: 0.9rem;
}

/* Screenshot */
.screenshot-section {
  text-align: center;
  margin: 1.5rem 0;
}

.screenshot {
  max-width: 380px;
  width: 100%;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
}

/* Video container */
.video-container {
  margin: 1.5rem 0;
  border-radius: var(--radius);
  overflow: hidden;
}

/* === Lotto === */
.lotto-generator {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 2rem;
  margin-bottom: 2rem;
  text-align: center;
}

.lotto-controls {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
}

.lotto-controls label {
  font-weight: 600;
  font-size: 0.95rem;
}

.lotto-controls select {
  padding: 0.4rem 0.75rem;
  border: 1px solid var(--color-border);
  border-radius: 6px;
  font-size: 0.95rem;
}

.btn-generate {
  padding: 0.6rem 1.5rem;
  background: var(--color-primary);
  color: #fff;
  border: none;
  border-radius: 8px;
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  transition: background 0.15s;
}
.btn-generate:hover { background: var(--color-primary-hover); }

.lotto-result { margin-top: 1rem; }

.lotto-set {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
  flex-wrap: wrap;
}

.lotto-set .set-label {
  font-weight: 600;
  font-size: 0.85rem;
  color: var(--color-text-secondary);
  min-width: 1.5rem;
}

.lotto-ball {
  width: 2.75rem;
  height: 2.75rem;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1rem;
  color: #fff;
  box-shadow: inset 0 -2px 4px rgba(0,0,0,0.15);
}

.lotto-ball.color-yellow { background: #fbc400; color: #1a1a1a; }
.lotto-ball.color-blue   { background: #69c8f2; }
.lotto-ball.color-red    { background: #ff7272; }
.lotto-ball.color-gray   { background: #aaa; }
.lotto-ball.color-green  { background: #b0d840; color: #1a1a1a; }

.lotto-ball.bonus {
  border: 3px solid var(--color-accent);
}

/* Winning numbers section */
.winning-section {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1.5rem 2rem;
  margin-bottom: 2rem;
  text-align: center;
}

.winning-section h3 {
  margin-bottom: 1rem;
  border: none;
  padding: 0;
}

.winning-numbers {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.winning-numbers .plus {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-text-secondary);
  margin: 0 0.25rem;
}

/* History */
.history-section {
  margin-top: 1.5rem;
  text-align: left;
}

.history-section h4 {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  margin-bottom: 0.5rem;
}

.history-list {
  max-height: 200px;
  overflow-y: auto;
  font-size: 0.85rem;
}

.history-item {
  padding: 0.4rem 0;
  border-bottom: 1px solid var(--color-border);
  display: flex;
  gap: 0.375rem;
  align-items: center;
  flex-wrap: wrap;
}

.history-item .lotto-ball {
  width: 1.75rem;
  height: 1.75rem;
  font-size: 0.7rem;
}

/* FAQ */
.faq-item { margin-bottom: 1rem; }
.faq-item dt {
  font-weight: 700;
  margin-bottom: 0.25rem;
}
.faq-item dd {
  color: var(--color-text-secondary);
  padding-left: 1rem;
}

/* Prize table */
.prize-table {
  width: 100%;
  border-collapse: collapse;
  margin: 1rem 0;
  font-size: 0.9rem;
}
.prize-table th, .prize-table td {
  padding: 0.6rem 0.75rem;
  border: 1px solid var(--color-border);
  text-align: left;
}
.prize-table th {
  background: #f3f4f6;
  font-weight: 700;
}
.prize-table tr:hover { background: #f9fafb; }

/* === Footer === */
.footer {
  margin-top: auto;
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
}

.footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 1.5rem;
  text-align: center;
  font-size: 0.85rem;
  color: var(--color-text-secondary);
}

.footer-nav {
  display: flex;
  justify-content: center;
  gap: 1.5rem;
  margin-bottom: 0.75rem;
}

/* === Responsive === */
@media (max-width: 600px) {
  .hero h1 { font-size: 1.5rem; }
  .hero p { font-size: 0.95rem; }
  .tools-grid { grid-template-columns: 1fr; }
  .lotto-ball { width: 2.25rem; height: 2.25rem; font-size: 0.85rem; }
  .lotto-controls { flex-direction: column; gap: 0.5rem; }
  .page-content h1 { font-size: 1.4rem; }
}