:root {
  color-scheme: dark;
  --bg: #081018;
  --surface: rgba(12, 18, 28, 0.78);
  --surface-strong: rgba(16, 24, 36, 0.94);
  --border: rgba(255, 255, 255, 0.1);
  --border-strong: rgba(255, 255, 255, 0.16);
  --text: #f2f6f8;
  --muted: #aab6c2;
  --subtle: #7a8794;
  --accent: #e35b52;
  --accent-soft: rgba(227, 91, 82, 0.14);
  --accent-strong: #ff7a70;
  --shadow: 0 30px 80px rgba(0, 0, 0, 0.34);
}

* {
  box-sizing: border-box;
}

html,
body {
  min-height: 100%;
  margin: 0;
}

body {
  color: var(--text);
  background:
    radial-gradient(circle at 14% 18%, rgba(227, 91, 82, 0.16), transparent 24rem),
    radial-gradient(circle at 82% 16%, rgba(92, 128, 171, 0.12), transparent 22rem),
    radial-gradient(circle at 82% 84%, rgba(53, 98, 136, 0.12), transparent 28rem),
    linear-gradient(180deg, #091019 0%, #070d14 100%);
  font-family:
    "Pretendard",
    "Apple SD Gothic Neo",
    "Noto Sans KR",
    "Segoe UI",
    sans-serif;
  letter-spacing: 0;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.025) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.7), rgba(0, 0, 0, 0.08));
  opacity: 0.22;
}

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

.app-landing {
  position: relative;
  width: min(1080px, calc(100% - 40px));
  min-height: 100vh;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
}

.app-landing__topbar {
  min-height: 78px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}

.app-landing__brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-weight: 700;
}

.app-landing__brand-mark {
  width: 34px;
  height: 34px;
  border-radius: 8px;
  display: grid;
  place-items: center;
  background: linear-gradient(145deg, #27323d, #111820);
  border: 1px solid var(--border);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.05);
  color: #fff;
  font-size: 14px;
}

.app-landing__brand-name {
  font-size: 19px;
}

.app-landing__brand-name span {
  color: var(--muted);
  font-weight: 500;
}

.app-landing__home-link {
  min-height: 36px;
  padding: 0 13px;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.03);
  color: var(--muted);
  font-size: 13px;
  font-weight: 600;
  transition:
    transform 180ms ease,
    border-color 180ms ease,
    background-color 180ms ease,
    color 180ms ease;
}

.app-landing__home-link:hover,
.app-landing__home-link:focus-visible {
  transform: translateY(-1px);
  border-color: rgba(255, 255, 255, 0.2);
  background: rgba(255, 255, 255, 0.05);
  color: var(--text);
  outline: none;
}

.app-landing__main {
  flex: 1;
  display: grid;
  grid-template-columns: minmax(0, 1.18fr) minmax(280px, 0.82fr);
  gap: 28px;
  align-items: center;
  padding: 48px 0 64px;
}

.app-landing__hero {
  display: grid;
  gap: 22px;
}

.app-landing__kicker {
  margin: 0;
  color: #d98d87;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.app-landing__title-group {
  display: grid;
  gap: 10px;
}

.app-landing__title {
  margin: 0;
  font-size: clamp(42px, 6vw, 72px);
  line-height: 1.05;
  font-weight: 740;
}

.app-landing__subtitle {
  margin: 0;
  color: #dce3ea;
  font-size: clamp(18px, 2.2vw, 24px);
  line-height: 1.35;
  font-weight: 600;
}

.app-landing__badge {
  width: fit-content;
  min-height: 34px;
  padding: 0 13px;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border: 1px solid rgba(227, 91, 82, 0.24);
  background: var(--accent-soft);
  color: #f7c7c2;
  font-size: 13px;
  font-weight: 700;
}

.app-landing__badge::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 5px rgba(227, 91, 82, 0.14);
}

.app-landing__lede {
  max-width: 620px;
  margin: 0;
  color: var(--muted);
  font-size: 17px;
  line-height: 1.75;
  word-break: keep-all;
}

.app-landing__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.app-landing__disabled-action {
  min-height: 40px;
  padding: 0 15px;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  font-size: 13px;
  font-weight: 700;
}

.app-landing__disabled-action {
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(255, 255, 255, 0.04);
  color: var(--subtle);
  cursor: not-allowed;
}

.app-landing__panel {
  padding: 24px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.05), rgba(255, 255, 255, 0.02)),
    var(--surface);
  box-shadow: var(--shadow);
  backdrop-filter: blur(16px);
}

.app-landing__panel-title {
  margin: 0 0 18px;
  color: #d9b0ad;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.app-landing__feature-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 12px;
}

.app-landing__feature-list li {
  position: relative;
  padding: 14px 14px 14px 34px;
  border-radius: 8px;
  border: 1px solid rgba(255, 255, 255, 0.07);
  background: rgba(255, 255, 255, 0.03);
  color: #dce3ea;
  font-size: 14px;
  line-height: 1.5;
}

.app-landing__feature-list li::before {
  content: "";
  position: absolute;
  left: 16px;
  top: 50%;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: linear-gradient(180deg, var(--accent-strong), var(--accent));
  box-shadow: 0 0 0 4px rgba(227, 91, 82, 0.12);
  transform: translateY(-50%);
}

.app-landing__legal {
  margin-top: 22px;
  padding-top: 18px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.app-landing__legal-link {
  min-height: 36px;
  padding: 0 12px;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.03);
  color: var(--muted);
  font-size: 13px;
  font-weight: 600;
  transition:
    transform 180ms ease,
    border-color 180ms ease,
    background-color 180ms ease,
    color 180ms ease;
}

.app-landing__legal-link:hover,
.app-landing__legal-link:focus-visible {
  transform: translateY(-1px);
  border-color: rgba(255, 255, 255, 0.2);
  background: rgba(255, 255, 255, 0.05);
  color: var(--text);
  outline: none;
}

@media (max-width: 860px) {
  .app-landing {
    width: min(100% - 32px, 760px);
  }

  .app-landing__main {
    grid-template-columns: 1fr;
    align-items: start;
    gap: 24px;
    padding-top: 30px;
  }
}

@media (max-width: 640px) {
  .app-landing {
    width: min(100% - 28px, 760px);
  }

  .app-landing__topbar {
    align-items: flex-start;
    flex-direction: column;
    justify-content: center;
    padding: 12px 0;
  }

  .app-landing__title {
    font-size: clamp(38px, 13vw, 56px);
  }

  .app-landing__lede {
    font-size: 16px;
  }

  .app-landing__panel {
    padding: 20px;
  }

}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    transition-delay: 0ms !important;
  }
}