:root {
  --color-black: #050505;
  --color-white: #f5f5f3;
  --color-muted: #8d8d8a;
  --color-accent: #ffca18;
  --page-gutter: clamp(32px, 6.25vw, 92px);
}

* {
  box-sizing: border-box;
}

html {
  min-width: 320px;
  min-height: 100%;
  background: var(--color-black);
}

body {
  min-height: 100%;
  margin: 0;
  background: var(--color-black);
  color: var(--color-white);
  font-family: "Pretendard", "Apple SD Gothic Neo", "Noto Sans KR", sans-serif;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

.maintenance-page {
  min-height: 100svh;
  overflow: hidden;
  background-color: var(--color-black);
  background-image: url("media/maintenance-background.jpg");
  background-position: center;
  background-repeat: no-repeat;
  background-size: cover;
}

.maintenance-shell {
  position: relative;
  min-height: 100svh;
  padding: clamp(76px, 10.5vh, 116px) var(--page-gutter) clamp(54px, 7.5vh, 82px);
}

.brand {
  position: relative;
  z-index: 1;
}

.brand-logo {
  display: block;
  width: clamp(144px, 13vw, 194px);
  height: auto;
}

.maintenance-content {
  position: relative;
  z-index: 1;
  width: min(880px, 68vw);
  margin-top: clamp(82px, 10.5vh, 118px);
}

h1 {
  margin: 0;
  font-size: clamp(68px, 7.8vw, 120px);
  font-weight: 900;
  line-height: 1.18;
  letter-spacing: -0.055em;
  text-wrap: balance;
}

.title-line {
  display: block;
  white-space: nowrap;
}

.title-accent {
  color: var(--color-accent);
}

.maintenance-message {
  margin: clamp(30px, 3.8vh, 46px) 0 0;
  color: rgba(245, 245, 243, 0.92);
  font-size: clamp(21px, 2.5vw, 36px);
  font-weight: 400;
  line-height: 1.45;
  letter-spacing: -0.02em;
}

.signal-line {
  width: min(540px, 43vw);
  height: 1px;
  margin-top: clamp(42px, 5.2vh, 58px);
  background: var(--color-accent);
  opacity: 0.78;
}

.contact-link {
  display: inline-flex;
  align-items: baseline;
  gap: 16px;
  margin-top: clamp(42px, 5.2vh, 58px);
  padding: 0 0 8px;
  border-bottom: 2px solid var(--color-accent);
  color: var(--color-white);
  font-size: clamp(18px, 1.55vw, 23px);
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: -0.025em;
  text-decoration: none;
  transition: color 180ms ease, border-color 180ms ease;
}

.contact-link:hover,
.contact-link:focus-visible {
  color: var(--color-accent);
  border-color: var(--color-white);
  outline: none;
}

.contact-link:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 8px;
}

.site-footer {
  position: absolute;
  z-index: 1;
  left: var(--page-gutter);
  bottom: clamp(38px, 6.8vh, 72px);
  color: var(--color-muted);
  font-size: clamp(14px, 1.25vw, 18px);
  line-height: 1.2;
  letter-spacing: -0.01em;
}

@media (max-width: 900px) {
  :root {
    --page-gutter: clamp(28px, 7vw, 56px);
  }

  .maintenance-page {
    background-position: 62% center;
  }

  .maintenance-shell {
    min-height: max(100svh, 700px);
    padding-top: clamp(42px, 7vh, 70px);
  }

  .maintenance-content {
    width: min(680px, 86vw);
    margin-top: clamp(100px, 14vh, 150px);
  }

  .signal-line {
    width: min(480px, 72vw);
  }
}

@media (max-width: 600px) {
  :root {
    --page-gutter: clamp(22px, 6.2vw, 30px);
  }

  .maintenance-page {
    background-position: 58% center;
  }

  .maintenance-shell {
    min-height: max(100svh, 640px);
    padding-top: max(28px, env(safe-area-inset-top));
    padding-bottom: max(28px, env(safe-area-inset-bottom));
  }

  .brand-logo {
    width: clamp(116px, 31vw, 136px);
  }

  .maintenance-content {
    width: 100%;
    margin-top: clamp(92px, 16vh, 138px);
  }

  h1 {
    font-size: clamp(46px, 14.5vw, 62px);
    line-height: 1.12;
    letter-spacing: -0.068em;
  }

  .maintenance-message {
    margin-top: 26px;
    font-size: clamp(18px, 5vw, 21px);
  }

  .signal-line {
    width: 100%;
    margin-top: 34px;
  }

  .contact-link {
    display: flex;
    width: max-content;
    max-width: 100%;
    gap: 12px;
    margin-top: 34px;
    min-height: 44px;
    padding: 10px 0 11px;
    font-size: 18px;
  }

  .site-footer {
    bottom: max(28px, env(safe-area-inset-bottom));
    font-size: 14px;
  }
}

@media (max-height: 720px) and (min-width: 601px) {
  .maintenance-shell {
    min-height: 720px;
  }

  .maintenance-content {
    margin-top: 64px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }
}