/* =====================================================
   화이트빌드케어 | 푸터 다크 테마
   ===================================================== */

:root {
  --footer-bg:       #0a1520;
  --footer-bg-deep:  #071218;
  --footer-white:    #ffffff;
  --footer-gray:     #a5b4c7;
  --footer-gray-dim: #7a8a9d;
  --footer-border:   rgba(255, 255, 255, 0.08);
  --footer-accent:   #4a90c2;
  --font-family: "Noto Sans KR", "Malgun Gothic", Arial, sans-serif;
}

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

html, body {
  margin: 0;
  padding: 0;
  font-family: var(--font-family);
  background: var(--footer-bg);
  color: var(--footer-gray);
  -webkit-font-smoothing: antialiased;
}

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

img {
  display: block;
  max-width: 100%;
  height: auto;
}

/* ══════════ 푸터 전체 ══════════ */
.footer {
  background: linear-gradient(
    180deg,
    var(--footer-bg)   0%,
    var(--footer-bg-deep) 100%
  );
  padding: 56px 0 0;
  min-height: 280px;
}

.footer-container {
  width: min(100% - 64px, 1120px);
  margin: 0 auto;
}

/* ══════════ 메인 3단 레이아웃 ══════════ */
.footer-main {
  display: grid;
  grid-template-columns: 1.1fr 1.6fr 1.2fr;
  gap: 48px;
  padding-bottom: 40px;
  border-bottom: 1px solid var(--footer-border);
}

/* ══════════ ① 브랜드 영역 ══════════ */
.footer-logo {
  display: flex;
  align-items: center;
  margin-bottom: 20px;
}

.footer-logo img {
  height: 48px;
  width: auto;
  max-width: 260px;
  max-height: 56px;
  object-fit: contain;
  display: block;
}

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

.logo-text {
  font-size: 18px;
  font-weight: 900;
  color: var(--footer-white);
  letter-spacing: -0.02em;
}

.logo-sub {
  font-size: 11px;
  font-weight: 500;
  color: var(--footer-gray);
  letter-spacing: 0.15em;
  margin-top: 2px;
}

.footer-desc {
  font-size: 14px;
  line-height: 1.8;
  color: var(--footer-gray);
  margin: 0;
}

/* ══════════ ② 서비스 안내 ══════════ */
.footer-title {
  font-size: 16px;
  font-weight: 800;
  color: var(--footer-white);
  margin: 0 0 24px;
  letter-spacing: -0.01em;
}

.services-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px 24px;
}

.service-col {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.service-col a {
  font-size: 14px;
  color: var(--footer-gray);
  padding: 3px 0;
  transition: color 0.2s ease;
  line-height: 1.5;
}

.service-col a:hover {
  color: var(--footer-white);
}

/* ══════════ ③ 고객센터 ══════════ */
.contact-phone {
  font-size: 32px;
  font-weight: 800;
  color: var(--footer-white);
  letter-spacing: -0.02em;
  margin: 6px 0 16px;
  line-height: 1.1;
}

.contact-info {
  font-size: 14px;
  color: var(--footer-gray);
  line-height: 1.9;
}

.contact-info a {
  color: var(--footer-accent);
  transition: color 0.2s ease;
}

.contact-info a:hover {
  color: var(--footer-white);
}

/* ══════════ 하단 저작권 ══════════ */
.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 0 28px;
  font-size: 13px;
  color: var(--footer-gray-dim);
}

.copyright {
  margin: 0;
}

.policy-links {
  display: flex;
  align-items: center;
  gap: 16px;
}

.policy-links a {
  color: var(--footer-gray-dim);
  transition: color 0.2s ease;
}

.policy-links a:hover {
  color: var(--footer-white);
}

.separator {
  color: rgba(255, 255, 255, 0.15);
  font-weight: 300;
}

/* ══════════ 반응형 ══════════ */
@media (max-width: 900px) {
  .footer-main {
    grid-template-columns: 1fr 1fr;
    gap: 36px;
  }

  .footer-brand {
    grid-column: 1 / -1;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--footer-border);
    margin-bottom: 4px;
  }

  .footer-logo img {
    height: 42px;
    max-width: 220px;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 12px;
    text-align: center;
    padding: 24px 0 32px;
  }
}

@media (max-width: 600px) {
  .footer {
    padding: 40px 0 0;
  }

  .footer-container {
    width: min(100% - 32px, 1120px);
  }

  .footer-main {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .services-grid {
    grid-template-columns: 1fr 1fr;
    gap: 12px 20px;
  }

  .contact-phone {
    font-size: 28px;
  }

  .footer-logo img {
    height: 38px;
    max-width: 200px;
  }
}

@media (max-width: 480px) {
  .footer-logo img {
    height: 34px;
    max-width: 180px;
  }

  .contact-phone {
    font-size: 26px;
  }

  .footer-container {
    width: min(100% - 24px, 1120px);
  }
}