/* DOO Studio — phong cách luxury editorial, tông kem/be ấm */
:root {
  --kem: #F6F1E8;
  --kem-dam: #EFE7D9;
  --kem-card: #FBF8F2;
  --nau: #2E2820;
  --nau-nhat: #6B5F51;
  --dong: #A5804F;
  --dong-dam: #8A6A3E;
  --toi: #241F19;
  --trang: #FFFFFF;
  --font-display: "Playfair Display", "Times New Roman", serif;
  --font-body: "Be Vietnam Pro", "Segoe UI", sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-body);
  font-weight: 300;
  color: var(--nau);
  background: var(--kem);
  line-height: 1.75;
  font-size: 16px;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }

h1, h2, h3, .display { font-family: var(--font-display); font-weight: 500; line-height: 1.25; }
h1 { font-size: clamp(2rem, 5vw, 3.6rem); }
h2 { font-size: clamp(1.6rem, 3.4vw, 2.5rem); }
h3 { font-size: 1.25rem; }

.wrap { max-width: 1180px; margin: 0 auto; padding: 0 24px; }
.section { padding: clamp(64px, 9vw, 120px) 0; }
.section.tight { padding: clamp(40px, 6vw, 72px) 0; }

.eyebrow {
  display: block;
  font-size: 12px;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--dong);
  margin-bottom: 18px;
  font-weight: 400;
}
.lead { font-size: 1.1rem; color: var(--nau-nhat); max-width: 640px; }
.center { text-align: center; }
.center .lead { margin: 0 auto; }

/* ---------- Header ---------- */
.topbar {
  background: var(--toi);
  color: #D9CDBB;
  font-size: 12.5px;
  letter-spacing: 0.06em;
  text-align: center;
  padding: 8px 16px;
}
.topbar a { color: #E8DCC8; border-bottom: 1px solid rgba(232,220,200,.35); }
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(246, 241, 232, 0.94);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid rgba(46, 40, 32, 0.08);
}
.nav {
  max-width: 1280px;
  margin: 0 auto;
  padding: 16px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.brand {
  font-family: var(--font-display);
  font-size: 1.7rem;
  letter-spacing: 0.14em;
  font-weight: 600;
}
.brand span { color: var(--dong); font-weight: 400; }
.menu { display: flex; align-items: center; gap: clamp(16px, 2.4vw, 34px); }
.menu a {
  font-size: 12.5px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  padding: 6px 0;
  border-bottom: 1px solid transparent;
  transition: border-color .25s, color .25s;
}
.menu a:hover, .menu a.active { border-color: var(--dong); color: var(--dong-dam); }
.menu .btn-nav {
  border: 1px solid var(--dong);
  padding: 10px 22px;
  color: var(--dong-dam);
}
.menu .btn-nav:hover { background: var(--dong); color: var(--trang); }
.nav-toggle {
  display: none;
  background: none;
  border: 1px solid rgba(46,40,32,.25);
  font-size: 20px;
  padding: 4px 12px;
  cursor: pointer;
  color: var(--nau);
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-block;
  font-size: 13px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  padding: 16px 38px;
  border: 1px solid var(--dong);
  color: var(--trang);
  background: var(--dong);
  transition: all .25s;
  cursor: pointer;
  font-family: var(--font-body);
}
.btn:hover { background: var(--dong-dam); border-color: var(--dong-dam); }
.btn.ghost { background: transparent; color: inherit; border-color: currentColor; }
.btn.ghost:hover { background: var(--nau); color: var(--kem); border-color: var(--nau); }
.btn-row { display: flex; gap: 16px; flex-wrap: wrap; }

/* ---------- Ảnh & ô chờ ảnh ---------- */
.ph { background: var(--kem-dam); position: relative; overflow: hidden; }
.ph img { width: 100%; height: 100%; object-fit: cover; }
.ph.missing::after {
  content: "Ảnh DOO · " attr(data-label);
  position: absolute; inset: 0;
  display: flex; align-items: center; justify-content: center;
  color: var(--dong);
  font-size: 12.5px;
  letter-spacing: 0.08em;
  text-align: center;
  padding: 16px;
}
.r-16x9 { aspect-ratio: 16/9; }
.r-4x5 { aspect-ratio: 4/5; }
.r-3x4 { aspect-ratio: 3/4; }
.r-1x1 { aspect-ratio: 1/1; }

/* ---------- Hero ---------- */
.hero { position: relative; min-height: 82vh; display: flex; align-items: flex-end; color: var(--trang); }
.hero .ph { position: absolute; inset: 0; }
.hero .ph img { object-position: center top; }
.hero .ph.missing::after { color: var(--dong); }
.hero::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(36,31,25,0) 30%, rgba(36,31,25,.72) 100%);
  pointer-events: none;
}
.hero-inner { position: relative; z-index: 2; width: 100%; padding-bottom: clamp(48px, 7vw, 96px); }
.hero .eyebrow { color: #E5CFA4; }
.hero h1 { max-width: 760px; text-shadow: 0 2px 24px rgba(0,0,0,.35); }
.hero p { max-width: 560px; margin: 20px 0 32px; color: rgba(255,255,255,.92); }
.hero.short { min-height: 52vh; }

/* ---------- Dải tin cậy ---------- */
.stats { background: var(--toi); color: #E8DCC8; }
.stats .wrap {
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: 24px; padding-top: 44px; padding-bottom: 44px; text-align: center;
}
.stats b { display: block; font-family: var(--font-display); font-size: 2rem; font-weight: 500; color: var(--trang); }
.stats span { font-size: 12.5px; letter-spacing: 0.14em; text-transform: uppercase; color: #B9A88E; }

/* ---------- Khối ảnh + chữ xen kẽ ---------- */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(32px, 5vw, 72px); align-items: center; }
.split.rev .media { order: 2; }
.split .lead { margin-bottom: 26px; }

/* ---------- Lưới dịch vụ / concept ---------- */
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: clamp(20px, 3vw, 36px); }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: clamp(20px, 3vw, 36px); }
.card-media { display: block; }
.card-media .ph { margin-bottom: 18px; }
.card-media h3 { margin-bottom: 6px; transition: color .25s; }
.card-media:hover h3 { color: var(--dong-dam); }
.card-media p { color: var(--nau-nhat); font-size: .95rem; }
.card-media .more {
  display: inline-block; margin-top: 12px;
  font-size: 12px; letter-spacing: .22em; text-transform: uppercase;
  color: var(--dong); border-bottom: 1px solid var(--dong); padding-bottom: 3px;
}

/* ---------- Điểm khác biệt ---------- */
.feature-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: clamp(28px, 4vw, 48px); }
.feature { border-top: 1px solid rgba(46,40,32,.16); padding-top: 22px; }
.feature .num { font-family: var(--font-display); font-size: 1.1rem; color: var(--dong); display: block; margin-bottom: 8px; }
.feature h3 { margin-bottom: 8px; }
.feature p { color: var(--nau-nhat); font-size: .96rem; }

/* ---------- Band cam kết ---------- */
.band { background: var(--dong); color: var(--trang); text-align: center; }
.band .wrap { padding-top: clamp(56px, 7vw, 88px); padding-bottom: clamp(56px, 7vw, 88px); }
.band .eyebrow { color: rgba(255,255,255,.75); }
.band h2 { max-width: 800px; margin: 0 auto 16px; }
.band p { max-width: 620px; margin: 0 auto 30px; color: rgba(255,255,255,.9); }
.band .btn { background: var(--trang); color: var(--dong-dam); border-color: var(--trang); }
.band .btn:hover { background: var(--toi); color: var(--trang); border-color: var(--toi); }

/* ---------- Quy trình ---------- */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: clamp(20px, 3vw, 36px); counter-reset: step; }
.step { background: var(--kem-card); padding: 30px 26px; border: 1px solid rgba(46,40,32,.08); }
.step::before {
  counter-increment: step; content: "0" counter(step);
  font-family: var(--font-display); font-size: 1.6rem; color: var(--dong); display: block; margin-bottom: 12px;
}
.step h3 { font-size: 1.05rem; margin-bottom: 8px; }
.step p { font-size: .92rem; color: var(--nau-nhat); }

/* ---------- Trích dẫn ---------- */
.pullquote {
  font-family: var(--font-display); font-style: italic;
  font-size: clamp(1.3rem, 2.6vw, 1.8rem); line-height: 1.5;
  border-left: 2px solid var(--dong); padding-left: 28px; margin: 36px 0; max-width: 760px;
}
.pullquote cite { display: block; font-family: var(--font-body); font-style: normal; font-size: 13px; letter-spacing: .18em; text-transform: uppercase; color: var(--dong); margin-top: 14px; }

/* ---------- Khách nói gì về DOO (testimonial, ảnh lớn lấy mặt làm trung tâm) ---------- */
.testimonial-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: clamp(24px, 3vw, 40px); }
.testimonial-card { background: var(--kem-card); border: 1px solid rgba(46,40,32,.08); }
.testimonial-card .ph { margin-bottom: 0; }
.testimonial-card .ph img { object-position: center 22%; }
.testimonial-card blockquote { padding: 22px 24px 26px; font-size: .96rem; color: var(--nau-nhat); font-style: italic; }
.testimonial-card blockquote.pending { color: var(--dong); font-style: normal; letter-spacing: .02em; }
.testimonial-card figcaption { padding: 0 24px 20px; font-size: 12px; letter-spacing: .1em; text-transform: uppercase; color: var(--dong); }

/* ---------- Dải trấn an nhanh (trang bảng giá) ---------- */
.reassure { background: var(--toi); }
.reassure .wrap {
  display: grid; grid-template-columns: repeat(4, 1fr);
  padding: 22px 24px;
}
.re-item {
  color: #E8DCC8; font-size: .86rem; letter-spacing: .01em;
  padding: 0 18px; border-left: 1px solid rgba(232,220,200,.16);
  display: flex; align-items: center; gap: 10px;
}
.re-item:first-child { border-left: 0; padding-left: 0; }
.re-item span {
  font-family: var(--font-display); color: var(--dong); font-size: .8rem;
  flex-shrink: 0;
}

/* ---------- Đặt lịch nhanh (form nhúng ngay trên trang bảng giá) ---------- */
.quickbook { scroll-margin-top: 90px; }
.quickbook-card {
  background: var(--kem-card); border: 1px solid var(--dong);
  box-shadow: 0 18px 48px rgba(138,106,62,.14);
  padding: clamp(28px, 5vw, 56px); max-width: 760px; margin: 0 auto;
}
.qb-head { text-align: center; margin-bottom: 30px; }
.qb-head h2 { margin-bottom: 10px; }
.qb-head .lead { margin: 0 auto; }
.qb-form .form-grid { grid-template-columns: 1fr 1fr; }

/* ---------- Bảng giá ---------- */
.pricing { display: grid; grid-template-columns: repeat(3, 1fr); gap: clamp(20px, 3vw, 32px); align-items: stretch; }
.price-card { background: var(--kem-card); border: 1px solid rgba(46,40,32,.1); padding: 40px 32px; display: flex; flex-direction: column; }
.price-card.hot { border-color: var(--dong); box-shadow: 0 18px 44px rgba(138,106,62,.16); position: relative; }
.price-card.hot::before {
  content: "Sản phẩm chính"; position: absolute; top: -13px; left: 50%; transform: translateX(-50%);
  background: var(--dong); color: var(--trang); font-size: 11px; letter-spacing: .2em; text-transform: uppercase; padding: 5px 16px; white-space: nowrap;
}
.price-card h3 { font-size: 1.35rem; }
.price-card .price { font-family: var(--font-display); font-size: 1.5rem; color: var(--dong-dam); margin: 10px 0 4px; }
.price-card .note { font-size: .85rem; color: var(--nau-nhat); margin-bottom: 20px; }
.price-card ul { margin: 0 0 26px; flex: 1; }
.price-card li { padding: 8px 0 8px 26px; position: relative; font-size: .94rem; border-bottom: 1px solid rgba(46,40,32,.07); }
.price-card li::before { content: "—"; position: absolute; left: 0; color: var(--dong); }
.price-card .btn { text-align: center; }

table.plain { width: 100%; border-collapse: collapse; }
table.plain th, table.plain td { text-align: left; padding: 14px 12px; border-bottom: 1px solid rgba(46,40,32,.12); font-size: .95rem; }
table.plain th { font-weight: 500; letter-spacing: .08em; text-transform: uppercase; font-size: 12px; color: var(--nau-nhat); }

/* ---------- FAQ ---------- */
.faq details { border-bottom: 1px solid rgba(46,40,32,.14); padding: 6px 0; }
.faq summary {
  cursor: pointer; list-style: none; padding: 18px 36px 18px 0; position: relative;
  font-family: var(--font-display); font-size: 1.12rem;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; position: absolute; right: 4px; top: 14px; font-size: 1.4rem; color: var(--dong); }
.faq details[open] summary::after { content: "–"; }
.faq .a { padding: 0 0 20px; color: var(--nau-nhat); max-width: 720px; }

/* ---------- Form ---------- */
.form-wrap { background: var(--kem-card); border: 1px solid rgba(46,40,32,.1); padding: clamp(28px, 4vw, 48px); }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.form-grid .full { grid-column: 1 / -1; }
label { display: block; font-size: 12px; letter-spacing: .16em; text-transform: uppercase; color: var(--nau-nhat); margin-bottom: 8px; }
input, select, textarea {
  width: 100%; padding: 14px 16px; border: 1px solid rgba(46,40,32,.2);
  background: var(--trang); font-family: var(--font-body); font-size: 15px; color: var(--nau);
}
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--dong); }
.form-note { font-size: .85rem; color: var(--nau-nhat); margin-top: 14px; }
.form-success { display: none; text-align: center; padding: 40px 16px; }
.form-success h3 { color: var(--dong-dam); margin-bottom: 10px; }

/* ---------- Liên hệ ---------- */
.contact-info p { margin-bottom: 14px; }
.contact-info b { font-weight: 500; display: block; font-size: 12px; letter-spacing: .18em; text-transform: uppercase; color: var(--dong); margin-bottom: 2px; }
.map-frame { width: 100%; aspect-ratio: 16/10; border: 0; filter: sepia(.18); }

/* ---------- Footer ---------- */
.site-footer { background: var(--toi); color: #C9BCA6; font-size: .92rem; }
.site-footer .cols {
  display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 40px;
  padding: clamp(48px, 6vw, 72px) 0;
}
.site-footer h4 { color: var(--trang); font-size: 12.5px; letter-spacing: .22em; text-transform: uppercase; margin-bottom: 18px; font-weight: 500; }
.site-footer .brand { color: var(--trang); margin-bottom: 14px; display: inline-block; }
.site-footer a:hover { color: var(--trang); }
.site-footer li { margin-bottom: 10px; }
.copyright { border-top: 1px solid rgba(255,255,255,.1); padding: 20px 0; text-align: center; font-size: .8rem; color: #8B7E68; }

/* ---------- Nút gọi nổi (mobile) ---------- */
.call-fab {
  display: none; position: fixed; left: 16px; right: 16px; bottom: 16px; z-index: 60;
  background: var(--dong); color: var(--trang); text-align: center;
  padding: 15px; letter-spacing: .14em; text-transform: uppercase; font-size: 13px;
  box-shadow: 0 10px 28px rgba(0,0,0,.28);
}

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .split, .grid-3, .grid-2, .pricing, .feature-list, .steps, .form-grid,
  .site-footer .cols, .qb-form .form-grid { grid-template-columns: 1fr; }
  .split.rev .media { order: 0; }
  .stats .wrap { grid-template-columns: repeat(2, 1fr); }
  .reassure .wrap { grid-template-columns: repeat(2, 1fr); gap: 14px 0; }
  .re-item { border-left: 0; padding-left: 0; }
  .re-item:nth-child(odd) { border-right: 1px solid rgba(232,220,200,.16); padding-right: 14px; }
  .nav-toggle { display: block; }
  .menu {
    display: none; position: absolute; top: 100%; left: 0; right: 0;
    background: var(--kem); flex-direction: column; padding: 24px;
    border-bottom: 1px solid rgba(46,40,32,.12); gap: 18px;
  }
  .menu.open { display: flex; }
  .hero { min-height: 68vh; }
  .call-fab { display: block; }
  body { padding-bottom: 64px; }
}