:root {
  --bg: #f7f9fc;
  --card: #ffffff;
  --ink: #111827;
  --muted: #667085;
  --line: #e6eaf2;
  --blue: #2563eb;
  --blue-deep: #1d4ed8;
  --blue-soft: #eef4ff;
  --red: #dc2626;
  --red-soft: #fef2f2;
  --green: #079669;
  --shadow: 0 24px 70px rgba(15, 23, 42, 0.08);
  --radius: 22px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  font-family: "Pretendard", "Noto Sans KR", "Malgun Gothic", Arial, sans-serif;
  background:
    radial-gradient(circle at 79% 0, rgba(37, 99, 235, 0.1), transparent 28rem),
    var(--bg);
}

a {
  color: inherit;
  text-decoration: none;
}

button,
select,
input {
  font: inherit;
}

button {
  border: 0;
  cursor: pointer;
}

.topbar {
  height: 72px;
  padding: 0 max(calc((100vw - 1120px) / 2), 24px);
  background: #fff;
  border-bottom: 1px solid var(--line);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 18px;
  font-weight: 700;
}

.brand strong,
.eyebrow {
  color: var(--blue);
}

.brand-mark {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: var(--blue);
  color: white;
  display: grid;
  place-items: center;
  font-size: 24px;
  font-style: italic;
  font-weight: 800;
}

nav {
  display: flex;
  gap: 36px;
  color: #475467;
  font-weight: 600;
}

main {
  max-width: 1120px;
  margin: 0 auto;
  padding: 60px 0 54px;
}

.hero {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 48px;
  align-items: center;
  margin-bottom: 50px;
}

.eyebrow {
  margin: 0 0 14px;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.14em;
}

h1 {
  margin: 0 0 18px;
  font-size: clamp(38px, 3.4vw, 46px);
  line-height: 1.23;
  letter-spacing: -0.065em;
}

h2 {
  margin: 0;
  font-size: 24px;
  letter-spacing: -0.045em;
}

h3 {
  margin: 0;
  font-size: 17px;
  letter-spacing: -0.035em;
}

.intro,
.subtext {
  color: var(--muted);
  line-height: 1.7;
}

.intro {
  margin: 0 0 35px;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 23px;
}

.primary {
  height: 48px;
  padding: 0 25px;
  border-radius: 9px;
  background: var(--blue);
  color: white;
  font-weight: 700;
}

.primary:hover {
  background: var(--blue-deep);
}

.primary.large {
  height: 54px;
  padding: 0 28px;
}

.text-link {
  color: var(--blue);
  font-weight: 700;
}

.recommend-card {
  min-height: 350px;
  border-radius: var(--radius);
  padding: 34px 38px 30px;
  background: var(--card);
  box-shadow: var(--shadow);
}

.recommend-header,
.section-heading,
.setting-title {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
}

.tag,
.strategy-badge {
  display: inline-flex;
  border-radius: 999px;
  padding: 6px 11px;
  background: var(--blue-soft);
  color: var(--blue);
  font-size: 11px;
  font-weight: 800;
}

.tag {
  margin-bottom: 12px;
}

.strategy-badge {
  font-size: 12px;
}

.balls {
  display: flex;
  gap: 12px;
  align-items: center;
}

.featured-balls {
  margin: 34px 0 31px;
}

.ball {
  width: 52px;
  height: 52px;
  display: inline-grid;
  place-items: center;
  border-radius: 50%;
  color: #fff;
  font-size: 18px;
  font-weight: 800;
}

.ball.small {
  width: 40px;
  height: 40px;
  font-size: 15px;
}

.ball-yellow { background: #fbbf24; }
.ball-blue { background: #3b82f6; }
.ball-red { background: #ef4444; }
.ball-gray { background: #64748b; }
.ball-green { background: #10b981; }

.featured-metrics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid #eef2f7;
  padding-top: 21px;
}

.featured-metrics div:not(:first-child) {
  text-align: right;
}

.featured-metrics span {
  display: block;
  color: var(--muted);
  font-size: 13px;
  margin-bottom: 6px;
}

.featured-metrics strong {
  font-size: 18px;
}

.featured-message {
  color: var(--muted);
  margin: 20px 0 0;
  font-size: 13px;
}

.builder {
  display: grid;
  grid-template-columns: 1fr 0.93fr;
  gap: 22px;
  align-items: start;
}

.panel,
.saved {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 29px 30px;
  background: var(--card);
}

.ghost,
.secondary {
  height: 43px;
  padding: 0 17px;
  border-radius: 8px;
  color: #475467;
  background: transparent;
  font-weight: 700;
}

.ghost:hover {
  background: #f2f4f7;
}

.secondary {
  color: var(--blue);
  background: var(--blue-soft);
}

.secondary:hover {
  background: #dbeafe;
}

fieldset {
  border: 0;
  padding: 0;
  margin: 28px 0;
}

legend {
  margin-bottom: 13px;
  color: #344054;
  font-size: 14px;
  font-weight: 700;
}

.strategy-options {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 9px;
}

.strategy-options legend {
  grid-column: 1 / -1;
}

.strategy-option {
  position: relative;
  border: 1px solid var(--line);
  border-radius: 11px;
  padding: 14px 13px;
  cursor: pointer;
}

.strategy-option.active {
  border-color: var(--blue);
  background: #f7faff;
}

.strategy-option input {
  position: absolute;
  opacity: 0;
}

.strategy-option strong,
.strategy-option span {
  display: block;
}

.strategy-option strong {
  margin-bottom: 5px;
  font-size: 14px;
}

.strategy-option span {
  color: var(--muted);
  font-size: 12px;
}

.mode-buttons {
  border-radius: 8px;
  padding: 3px;
  display: flex;
  background: #f2f4f7;
}

.mode {
  padding: 7px 15px;
  border-radius: 6px;
  color: var(--muted);
  background: transparent;
  font-size: 13px;
  font-weight: 700;
}

.mode.active {
  color: white;
  background: var(--blue);
}

.number-setting .subtext {
  margin: 9px 0 17px;
  font-size: 13px;
}

.number-grid {
  display: grid;
  grid-template-columns: repeat(9, 1fr);
  gap: 7px;
}

.number-grid button {
  aspect-ratio: 1;
  border-radius: 50%;
  background: #f2f4f7;
  color: #344054;
  font-size: 13px;
  font-weight: 700;
}

.number-grid button:hover {
  background: #e4e7ec;
}

.number-grid button.included {
  background: var(--blue);
  color: white;
}

.number-grid button.excluded {
  background: var(--red-soft);
  color: var(--red);
  text-decoration: line-through;
}

.selection-summary {
  margin: 18px 0 23px;
  display: flex;
  gap: 18px;
  color: var(--muted);
  font-size: 13px;
}

.selection-summary p {
  margin: 0;
}

.selection-summary strong {
  margin-left: 6px;
  color: #344054;
}

.dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  margin-right: 4px;
  border-radius: 50%;
}

.dot.include { background: var(--blue); }
.dot.exclude { background: var(--red); }

.generate-controls {
  display: grid;
  grid-template-columns: 1fr 112px 132px;
  gap: 10px;
  align-items: center;
  border-top: 1px solid #eef2f7;
  padding-top: 22px;
}

.generate-controls label {
  color: #344054;
  font-weight: 700;
  font-size: 14px;
}

select {
  height: 48px;
  border: 1px solid #d0d5dd;
  border-radius: 8px;
  padding: 0 12px;
  background: white;
}

.feedback {
  min-height: 19px;
  margin: 15px 0 0;
  color: var(--green);
  font-size: 13px;
}

.feedback.error {
  color: var(--red);
}

.ticket-list,
.saved-list {
  display: grid;
  gap: 12px;
  margin-top: 24px;
}

.ticket {
  border: 1px solid #eef2f7;
  border-radius: 13px;
  padding: 15px 17px 13px;
  background: #f8fafc;
}

.ticket-top,
.ticket-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.ticket-top strong {
  font-size: 14px;
}

.ticket-top span {
  color: var(--blue);
  font-size: 12px;
  font-weight: 700;
}

.ticket-balls {
  display: flex;
  gap: 8px;
  margin: 14px 0 12px;
}

.ticket-bottom span {
  color: var(--muted);
  font-size: 12px;
}

.ticket-bottom button {
  color: var(--blue);
  background: transparent;
  font-size: 13px;
  font-weight: 700;
}

.saved {
  margin-top: 22px;
}

.saved-list {
  grid-template-columns: repeat(3, 1fr);
}

.empty {
  border-radius: 12px;
  padding: 28px 16px;
  color: var(--muted);
  background: #f8fafc;
  text-align: center;
  font-size: 14px;
}

.empty.wide {
  grid-column: 1 / -1;
}

footer {
  margin-top: 56px;
  border-top: 1px solid var(--line);
  padding: 27px max(calc((100vw - 1120px) / 2), 24px);
  color: var(--muted);
  display: flex;
  justify-content: space-between;
  gap: 25px;
  font-size: 13px;
}

footer p {
  margin: 0;
}

@media (max-width: 1000px) {
  main {
    padding: 42px 22px;
  }

  .hero,
  .builder {
    grid-template-columns: 1fr;
  }

  .saved-list {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 620px) {
  .topbar {
    height: 64px;
    padding: 0 18px;
  }

  nav {
    display: none;
  }

  main {
    padding: 30px 16px;
  }

  h1 {
    font-size: 34px;
  }

  .recommend-card,
  .panel,
  .saved {
    padding: 24px 18px;
  }

  .featured-balls {
    gap: 7px;
  }

  .ball {
    width: 43px;
    height: 43px;
    font-size: 15px;
  }

  .ticket-balls {
    gap: 5px;
  }

  .ball.small {
    width: 36px;
    height: 36px;
  }

  .strategy-options {
    grid-template-columns: 1fr;
  }

  .generate-controls {
    grid-template-columns: 1fr 1fr;
  }

  .generate-controls .primary {
    grid-column: 1 / -1;
  }

  footer {
    flex-direction: column;
    margin-top: 38px;
  }
}