/* DAIDONG STEEL GROUP — Coming Soon landing page */

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: "Roboto Condensed", "RobotoCondensed", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: #000;
  color: #fff;
  line-height: 1.5;
  min-height: 100vh;
  overflow-x: hidden;
}

/* Full-screen background */
.page-bg {
  position: fixed;
  inset: 0;
  z-index: 0;
  background: #000 url("../assets/bg.jpg") no-repeat center center;
  background-size: cover;
  pointer-events: none;
}

.page {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  padding: clamp(1.25rem, 3vw, 2.5rem) clamp(1.25rem, 4vw, 3.5rem);
}

/* —— Header —— */
.site-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 1.5rem;
  flex-shrink: 0;
}

.logo {
  display: flex;
  align-items: flex-start;
}

.logo-img {
  display: block;
  height: clamp(2.5rem, 5vw, 4.5rem);
  width: auto;
  max-width: min(100%, 22rem);
  object-fit: contain;
}

.tagline {
  font-size: clamp(0.75rem, 1.2vw, 1rem);
  font-weight: 300;
  letter-spacing: 0.04em;
  text-align: right;
  white-space: nowrap;
  padding-top: 0.35em;
}

/* —— Hero —— */
.hero {
  flex: 1;
  display: flex;
  align-items: center;
  padding: clamp(2rem, 6vh, 4rem) 0;
}

.hero-title {
  font-size: clamp(2rem, 5.5vw, 5.25rem);
  font-weight: 500;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: clamp(1.25rem, 3vh, 2rem);
}

.hero-desc {
  font-size: clamp(0.875rem, 1.35vw, 1.0625rem);
  font-weight: 300;
  line-height: 1.65;
  color: rgba(255, 255, 255, 0.92);
}

/* —— Footer —— */
.site-footer {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  flex-shrink: 0;
  padding-top: clamp(1.5rem, 4vh, 2.5rem);
}

.footer-col {
  padding: 0 clamp(0.75rem, 1.5vw, 1.5rem);
  border-left: 1px solid rgba(255, 255, 255, 0.35);
}

.footer-col:first-child {
  padding-left: 0;
  border-left: none;
}

.footer-col h2 {
  font-size: clamp(0.6875rem, 1vw, 0.8125rem);
  font-weight: 700;
  letter-spacing: 0.06em;
  margin-bottom: 0.5rem;
}

.footer-name {
  font-size: clamp(0.625rem, 0.9vw, 0.75rem);
  font-weight: 600;
  letter-spacing: 0.03em;
  margin-bottom: 0.35rem;
  line-height: 1.35;
}

.footer-addr {
  font-size: clamp(0.5625rem, 0.8vw, 0.6875rem);
  font-weight: 300;
  line-height: 1.5;
  color: rgba(255, 255, 255, 0.85);
}

/* —— Tablet —— */
@media (max-width: 1024px) {
  .page-bg {
    background-position: 70% center;
  }

  .site-footer {
    grid-template-columns: repeat(2, 1fr);
    row-gap: 1.5rem;
  }

  .footer-col:nth-child(odd) {
    border-left: none;
    padding-left: 0;
  }

  .footer-col:nth-child(even) {
    border-left: 1px solid rgba(255, 255, 255, 0.35);
  }

  .footer-col:nth-child(3),
  .footer-col:nth-child(4) {
    padding-top: 0.5rem;
  }
}

/* —— Mobile —— */
@media (max-width: 640px) {
  .page {
    padding: 1.25rem 1.25rem 2rem;
  }

  .page-bg {
    background-position: 75% center;
  }

  .site-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.75rem;
  }

  .tagline {
    text-align: left;
    white-space: normal;
  }

  .hero {
    padding: 1.5rem 0 1rem;
  }

  .site-footer {
    grid-template-columns: 1fr;
    gap: 1.25rem;
  }

  .footer-col,
  .footer-col:first-child,
  .footer-col:nth-child(odd),
  .footer-col:nth-child(even) {
    border-left: 2px solid rgba(255, 255, 255, 0.25);
    padding: 0 0 0 0.75rem;
  }
}