/* Reset & Base */
:root {
  --bg: #0a0a0a;
  --bg2: #111;
  --text: #f2efe8;
  --muted: #9a958c;
  --gold: #c9a66b;
  --border: rgba(255,255,255,0.08);
}
* { margin:0; padding:0; box-sizing:border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: 'Noto Sans KR', sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  overflow-x: hidden;
}
h1,h2,h3 { font-family: 'Cormorant Garamond', serif; font-weight: 400; }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

header {
  position: fixed; top:0; left:0; right:0; z-index:100;
  padding: 20px 40px;
  display: flex; justify-content: space-between; align-items: center;
  background: linear-gradient(to bottom, rgba(0,0,0,0.7), transparent);
  transition: background .3s;
}
header.scrolled {
  background: rgba(10,10,10,0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}
.logo img { height: 42px; width: auto; }
.btn-call {
  border: 1px solid var(--gold);
  color: var(--gold);
  padding: 10px 20px;
  font-size: 0.85rem;
  letter-spacing: 0.08em;
  transition: .25s;
}
.btn-call:hover { background: var(--gold); color: #000; }

.hero {
  height: 100vh; min-height: 650px;
  position: relative; display: flex;
  align-items: center; justify-content: center;
  text-align: center; overflow: hidden;
}
.hero video {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  object-fit: cover; z-index: 0;
}
.hero-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(to bottom, rgba(0,0,0,0.4), rgba(0,0,0,0.7));
  z-index: 1;
}
.hero-content {
  position: relative; z-index: 2;
  max-width: 800px; padding: 0 24px;
}
.hero-content .logo-wrap {
  margin-bottom: 40px;
  display: flex; justify-content: center;
}
.hero-content .logo-wrap img {
  max-width: 360px; width: 70%; height: auto;
}
.hero-content p {
  color: rgba(255,255,255,0.85);
  font-size: 1.05rem; font-weight: 300;
  margin-bottom: 36px;
}
.hero-btns {
  display: flex; gap: 14px; justify-content: center; flex-wrap: wrap;
}
.btn-gold {
  background: var(--gold); color: #111;
  padding: 14px 32px; font-size: 0.85rem;
  letter-spacing: 0.1em; font-weight: 500;
  transition: .25s;
}
.btn-gold:hover { background: #d4b57a; }
.btn-line {
  border: 1px solid rgba(255,255,255,0.5);
  padding: 14px 32px; font-size: 0.85rem;
  letter-spacing: 0.1em; transition: .25s;
}
.btn-line:hover { border-color: #fff; background: rgba(255,255,255,0.08); }

.summary {
  padding: 100px 24px; text-align: center;
  background: var(--bg2);
}
.summary h2 {
  font-size: clamp(1.6rem, 3.5vw, 2.4rem);
  margin-bottom: 28px; line-height: 1.4;
}
.summary ul {
  list-style: none; display: flex; flex-wrap: wrap;
  justify-content: center; gap: 12px 32px;
  color: var(--muted); font-size: 0.9rem;
  letter-spacing: 0.06em;
}

.premium { padding: 120px 24px; }
.container { max-width: 1100px; margin: 0 auto; }
.premium-label {
  font-size: 0.75rem; letter-spacing: 0.3em;
  color: var(--gold); margin-bottom: 12px;
}
.premium-title {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  line-height: 1.35; margin-bottom: 28px;
}
.premium-desc {
  color: var(--muted); font-weight: 300;
  font-size: 1.05rem; max-width: 640px;
  margin-bottom: 60px;
}

.gallery {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 16px;
  margin-bottom: 16px;
}
.gallery-tall { grid-row: span 2; }
.gallery img, .gallery-full img {
  width: 100%; height: 100%;
  object-fit: cover; border-radius: 2px;
}
.gallery-side { display: grid; gap: 16px; }
.gallery-full { margin-top: 16px; }
.gallery-full img {
  width: 100%; max-height: 480px; object-fit: cover;
}
@media (max-width: 768px) {
  .gallery { grid-template-columns: 1fr; }
  .gallery-tall { grid-row: auto; }
}

/* Premium Section 04 Integration */
.sec-premium {
    padding: 120px 24px;
    background-color: var(--bg2);
    border-top: 1px solid var(--border);
    text-align: center;
}

.sec-premium .inner {
    max-width: 1100px;
    margin: 0 auto;
}

.sec-premium .sub-title {
    display: block;
    font-size: 0.75rem;
    font-weight: 400;
    color: var(--gold);
    margin-bottom: 12px;
    letter-spacing: 0.3em;
}

.sec-premium .main-title {
    font-family: 'Cormorant Garamond', serif;
    font-size: clamp(1.8rem, 4vw, 2.8rem);
    font-weight: 400;
    color: var(--text);
    line-height: 1.35;
    margin-bottom: 28px;
}

.sec-premium .desc {
    font-size: 1.05rem;
    color: var(--muted);
    font-weight: 300;
    line-height: 1.8;
}

.features {
  padding: 80px 24px;
  background: var(--bg2);
  border-top: 1px solid var(--border);
}
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 32px;
  max-width: 1100px; margin: 0 auto;
}
.feat h3 {
  font-size: 1.15rem; margin-bottom: 8px;
  color: var(--gold);
}
.feat p { color: var(--muted); font-size: 0.92rem; font-weight: 300; }

.cta {
  padding: 120px 24px; text-align: center;
  background: linear-gradient(to bottom, rgba(0,0,0,0.6), rgba(0,0,0,0.85)),
              url('img6_web.jpg') center/cover no-repeat;
}
.cta h2 {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  margin-bottom: 16px;
}
.cta p {
  color: var(--muted); margin-bottom: 36px;
  font-weight: 300;
}

footer {
  padding: 48px 24px 32px;
  border-top: 1px solid var(--border);
  background: var(--bg2);
  text-align: center;
}
footer .company {
  color: var(--muted); font-size: 0.85rem;
  margin-bottom: 12px; line-height: 1.8;
}
footer .copy {
  color: rgba(255,255,255,0.35); font-size: 0.75rem;
}

@media (max-width: 640px) {
  header { padding: 16px 20px; }
  .hero-content .logo-wrap img { max-width: 260px; }
  .sec-premium { padding: 80px 20px; }
}

/* ==========================================
   관심고객 등록 폼 스타일 (중앙 정렬 및 프리미엄 디자인)
   ================================---------- */
.interest-form-container {
    max-width: 640px;
    margin: 60px auto;
    background: #1a1a1a;
    border: 1px solid var(--border);
    padding: 50px 40px;
    border-radius: 12px;
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.4);
    color: var(--text);
    text-align: left;
}

/* 상단 타이틀 영문/한글 중앙 정렬 및 강조 */
.form-header {
    text-align: center;
    margin-bottom: 40px;
}

.form-header h2 {
    font-size: 0.95rem;
    letter-spacing: 4px;
    color: var(--gold);
    margin-bottom: 8px;
    font-weight: 600;
}

.form-header .sub-title {
    display: block;
    font-size: 2.2rem;
    font-weight: 700;
    color: #ffffff;
    margin-bottom: 12px;
    letter-spacing: -0.5px;
}

.form-header p {
    color: var(--muted);
    font-size: 1rem;
    letter-spacing: -0.2px;
}

/* 입력 필드 레이아웃 */
.form-group {
    margin-bottom: 22px;
}

.form-group label {
    display: block;
    font-size: 0.9rem;
    color: #ddd;
    margin-bottom: 8px;
    font-weight: 500;
}

.required {
    color: #e74c3c;
}

.form-group input[type="text"],
.form-group input[type="tel"],
.form-group select {
    width: 100%;
    padding: 14px 16px;
    border: 1px solid #444;
    border-radius: 6px;
    font-size: 1rem;
    background-color: #262626;
    color: #fff;
    transition: all 0.3s ease;
}

.form-group input::placeholder,
.form-group select option {
    color: #888;
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--gold);
    background-color: #1f1f1f;
}

.address-group {
    display: flex;
    gap: 10px;
}

.address-group select {
    flex: 1;
}

.address-group input {
    flex: 1.5;
}

.radio-group {
    display: flex;
    gap: 30px;
    padding-top: 8px;
}

.radio-group label {
    font-weight: normal;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
    color: #ccc;
}

.checkbox-group label {
    font-size: 0.9rem;
    color: #bbb;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 10px;
}

.btn-submit {
    width: 100%;
    padding: 16px;
    background-color: var(--gold);
    color: #1a1a1a;
    border: none;
    border-radius: 6px;
    font-size: 1.05rem;
    font-weight: 700;
    cursor: pointer;
    transition: background-color 0.3s, transform 0.2s;
    margin-top: 15px;
    letter-spacing: 1px;
}

.btn-submit:hover {
    background-color: #dfbc7c;
    transform: translateY(-2px);
}