/* Trang mở đầu davidhuynh.vn — 2 ô vuông lớn dẫn vào Wedding và Na Navi */
:root {
  --lp-bg: #f4f2ef;
  --lp-ink: #2d2d2d;
  --lp-muted: #8a8580;
  --peach: #f3e0d0;
  --rose: #a8695b;
  --gap: clamp(12px, 2.2vw, 32px);
  --head-h: 96px;
  --foot-h: 56px;
}

body {
  background: var(--lp-bg);
  color: var(--lp-ink);
  font-family: "Questrial", system-ui, -apple-system, "Segoe UI", sans-serif;
}

.lp {
  min-height: 100vh;
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 0 16px;
}

/* Đầu trang: tên + dòng mời */
.lp-head {
  height: var(--head-h);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 6px;
  text-align: center;
}
.lp-brand {
  font-size: 15px;
  letter-spacing: 0.42em;
  text-transform: uppercase;
  padding-left: 0.42em; /* cân chữ giãn cách */
}
.lp-tagline {
  font-size: 13px;
  color: var(--lp-muted);
  letter-spacing: 0.04em;
}

/* 2 ô vuông: cạnh = nhỏ nhất giữa (bề ngang/2) và (chiều cao còn lại) */
.lp-doors {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--gap);
  width: 100%;
}
.door {
  --side: min(calc((100vw - 32px - var(--gap)) / 2), calc(100svh - var(--head-h) - var(--foot-h) - 24px), 720px);
  position: relative;
  width: var(--side);
  aspect-ratio: 1 / 1;
  flex: 0 0 auto;
  overflow: hidden;
  display: block;
  text-decoration: none;
  color: #fff;
  isolation: isolate;
  text-shadow: 0 1px 12px rgba(0, 0, 0, 0.18);
  outline-offset: 4px;
}
.door-img {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  transform: scale(1.001);
  transition: transform 1.2s cubic-bezier(0.2, 0.7, 0.2, 1), filter 0.8s ease;
  z-index: -2;
}
.door-veil {
  position: absolute;
  inset: 0;
  z-index: -1;
  transition: opacity 0.6s ease;
}
/* Khung mảnh bên trong, hiện dần khi rê chuột */
.door-frame {
  position: absolute;
  inset: 18px;
  border: 1px solid rgba(255, 255, 255, 0.55);
  opacity: 0;
  transform: scale(1.02);
  transition: opacity 0.6s ease, transform 0.6s ease;
  pointer-events: none;
}
.door-body {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: clamp(22px, 4vw, 44px);
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.door-kicker {
  font-size: 11px;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  opacity: 0.85;
}
.door-name {
  font-size: clamp(26px, 3.4vw, 46px);
  line-height: 1.08;
}
.door-desc {
  font-size: 14px;
  line-height: 1.55;
  max-width: 34ch;
  opacity: 0.9;
}
.door-cta {
  margin-top: 6px;
  font-size: 12px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  display: inline-flex;
  align-items: center;
  gap: 10px;
}
.door-arrow {
  display: inline-block;
  transition: transform 0.5s ease;
}

/* Wedding: đen trắng */
.door--wedding { background: #1b1b1b; }
.door--wedding .door-img { filter: grayscale(1) contrast(1.05); }
.door--wedding .door-veil {
  background: linear-gradient(to top, rgba(0, 0, 0, 0.72) 0%, rgba(0, 0, 0, 0.25) 45%, rgba(0, 0, 0, 0.05) 100%);
}
.door--wedding .door-name {
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: clamp(22px, 2.8vw, 38px);
}

/* Na Navi: kem đào + nâu hồng; nền kem đào nếu ảnh chưa có */
.door--baby { background: var(--peach); }
.door--baby .door-veil {
  background: linear-gradient(to top, rgba(140, 82, 70, 0.9) 0%, rgba(168, 105, 91, 0.55) 42%, rgba(243, 224, 208, 0) 75%);
}
.door--baby .door-name {
  font-family: "Cormorant Garamond", Georgia, serif;
  font-weight: 600;
  font-size: clamp(30px, 3.9vw, 52px);
  line-height: 1;
}
.door--baby .door-frame { border-color: rgba(243, 224, 208, 0.8); }

/* Hiệu ứng rê chuột (chỉ thiết bị có chuột) */
@media (hover: hover) {
  .door:hover .door-img { transform: scale(1.06); }
  .door--wedding:hover .door-img { filter: grayscale(1) contrast(1.1) brightness(0.92); }
  .door:hover .door-frame { opacity: 1; transform: scale(1); }
  .door:hover .door-arrow { transform: translateX(6px); }
}
.door:focus-visible { outline: 1px solid var(--lp-ink); }
.door:focus-visible .door-frame { opacity: 1; transform: scale(1); }

.lp-foot {
  height: var(--foot-h);
  display: flex;
  align-items: center;
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--lp-muted);
}

/* Điện thoại: xếp dọc, vẫn vuông */
@media (max-width: 720px) {
  :root { --head-h: 76px; --foot-h: 44px; --gap: 10px; }
  .lp-doors { flex-direction: column; padding: 4px 0; }
  .door { --side: min(calc(100vw - 32px), 560px); }
  .door-body { gap: 8px; }
  .door-desc { font-size: 13.5px; }
}