/* ══ NHA KHOA ĐÔNG ĐÔ — LUXE-DARK ══ */
/* Font: Cormorant Garamond (heading, italic 300) + DM Sans (body) | Tone: dark dominant 80%+ | Identity: LUXE-DARK */
/* Accent: Jade Emerald #0e7c66 — nha khoa cao cấp, sang trọng, dịch vụ trọn gói */

@import url('https://fonts.googleapis.com/css2?family=Cormorant+Garamond:ital,wght@0,300;0,400;0,500;1,300;1,400&family=DM+Sans:ital,opsz,wght@0,9..40,300;0,9..40,400;0,9..40,500;1,9..40,400&display=swap');

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

:root {
  --font-heading: 'Cormorant Garamond', serif;
  --font-body: 'DM Sans', sans-serif;

  --bg: #0b0d0c;
  --surface: #141917;
  --dark: #070908;
  --dark2: #121815;
  --border: rgba(244,242,236,.12);
  --border-light: rgba(244,242,236,.06);
  --text: #f4f2ec;
  --text-2: rgba(244,242,236,.62);
  --text-3: rgba(244,242,236,.38);

  --accent: #0e7c66;
  --accent-h: #0a5f4d;
  --accent-bright: #16a184;
  --accent-light: rgba(14,124,102,.16);
  --accent-mid: #17987e;

  --danger: #e0605a;
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text);
  font-weight: 300;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
button { font-family: inherit; cursor: pointer; }
input, textarea, select { font-family: inherit; }

h1, h2, h3, h4 {
  font-family: var(--font-heading);
  font-style: italic;
  font-weight: 300;
  letter-spacing: -.5px;
  line-height: 1.12;
  color: var(--text);
}

/* ═══ Layout utilities ═══ */
.wd-container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 clamp(20px, 5vw, 80px);
}

.dd-section { padding: clamp(80px, 10vw, 140px) 0; }
.dd-section-alt { background: var(--dark2); }
.dd-section-tight { padding: clamp(56px, 7vw, 96px) 0; }

.dd-eyebrow {
  display: flex;
  align-items: center;
  gap: 14px;
  font-family: var(--font-body);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--accent-bright);
  margin-bottom: 22px;
}
.dd-eyebrow::before { content: ''; width: 32px; height: 1px; background: var(--accent-bright); }

.dd-sec-title {
  font-size: clamp(32px, 4vw, 48px);
  max-width: 620px;
}
.dd-sec-title em { color: var(--accent-bright); font-style: italic; }

.dd-sec-sub {
  font-size: 16px;
  font-weight: 300;
  color: var(--text-2);
  max-width: 480px;
  margin-top: 18px;
}

.dd-sec-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  flex-wrap: wrap;
  gap: 24px;
  margin-bottom: 56px;
}

/* ═══ Buttons — Ghost uppercase, tracking 3px ═══ */
.dd-btn {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 17px 34px;
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--text);
  background: transparent;
  border: 1px solid rgba(244,242,236,.28);
  border-radius: 2px;
  transition: border-color .3s, color .3s;
  white-space: nowrap;
}
.dd-btn:hover { border-color: var(--accent-bright); color: var(--accent-bright); }
.dd-btn svg { width: 14px; height: 14px; flex-shrink: 0; transition: transform .3s; }
.dd-btn:hover svg { transform: translateX(4px); }

.dd-btn-fill {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}
.dd-btn-fill:hover { background: var(--accent-h); border-color: var(--accent-h); color: #fff; }

.dd-btn-sm { padding: 12px 24px; font-size: 11px; letter-spacing: 2.4px; }

/* ═══ Nav-3: Dark Floating ═══ */
#nav {
  position: fixed;
  top: 16px;
  left: 50%;
  transform: translateX(-50%);
  width: calc(100% - 40px);
  max-width: 1220px;
  background: var(--surface);
  border: 1px solid rgba(244,242,236,.08);
  border-radius: 12px;
  box-shadow: 0 24px 60px rgba(0,0,0,.5);
  z-index: 1000;
}

.dd-nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 26px;
}

.dd-logo { display: flex; flex-direction: column; line-height: 1; }
.dd-logo-main {
  font-family: var(--font-heading);
  font-style: italic;
  font-weight: 400;
  font-size: 24px;
  color: var(--text);
}
.dd-logo-main em { color: var(--accent-bright); font-style: italic; }
.dd-logo-sub {
  font-family: var(--font-body);
  font-size: 9px;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--text-3);
  margin-top: 3px;
}

.dd-nav-links { display: flex; align-items: center; gap: 34px; }
.dd-nav-links a {
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 1.6px;
  text-transform: uppercase;
  color: var(--text-2);
  transition: color .25s;
  position: relative;
}
.dd-nav-links a:hover, .dd-nav-links a.active { color: var(--accent-bright); }

.dd-nav-right { display: flex; align-items: center; gap: 22px; }

.dd-burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  padding: 8px;
}
.dd-burger span { width: 22px; height: 1px; background: var(--text); transition: all .3s; }
.dd-burger.open span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.dd-burger.open span:nth-child(2) { opacity: 0; }
.dd-burger.open span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

.dd-nav-mob {
  position: fixed;
  inset: 0;
  background: var(--dark);
  z-index: 999;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 28px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-12px);
  transition: opacity .35s, transform .35s, visibility .35s;
}
.dd-nav-mob.open { opacity: 1; visibility: visible; transform: translateY(0); }
.dd-nav-mob a {
  font-family: var(--font-heading);
  font-style: italic;
  font-weight: 300;
  font-size: 30px;
  color: var(--text);
}
.dd-nav-mob a.active, .dd-nav-mob a:hover { color: var(--accent-bright); }

/* ═══ Hero H2: Split 45/55 ═══ */
.dd-hero {
  display: flex;
  min-height: 100vh;
  background: var(--bg);
}
.dd-hero-left {
  width: 45%;
  background: var(--dark2);
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 148px 5vw 72px clamp(24px, 6vw, 80px);
}
.dd-hero-right {
  width: 55%;
  position: relative;
  min-height: 480px;
}
.dd-hero-right img { width: 100%; height: 100%; object-fit: cover; position: absolute; inset: 0; }

.dd-hero-title {
  font-size: clamp(42px, 5.2vw, 68px);
  letter-spacing: -1px;
  max-width: 460px;
}
.dd-hero-title em { color: var(--accent-bright); }

.dd-hero-sub {
  font-size: 16px;
  color: var(--text-2);
  max-width: 400px;
  margin-top: 26px;
  font-weight: 300;
}

.dd-hero-actions { display: flex; gap: 18px; margin-top: 44px; flex-wrap: wrap; }

.dd-hero-meta {
  display: flex;
  gap: 40px;
  margin-top: 72px;
  padding-top: 32px;
  border-top: 1px solid var(--border-light);
}
.dd-hero-meta-num {
  font-family: var(--font-heading);
  font-style: italic;
  font-size: 32px;
  color: var(--accent-bright);
}
.dd-hero-meta-label {
  font-size: 11px;
  letter-spacing: 1.4px;
  text-transform: uppercase;
  color: var(--text-3);
  margin-top: 4px;
}

/* ═══ Page Header (inner pages) ═══ */
.dd-page-header {
  background: var(--dark2);
  padding: 176px 0 88px;
  position: relative;
}
.dd-breadcrumb {
  font-size: 12px;
  letter-spacing: 1px;
  color: var(--text-3);
  margin-bottom: 20px;
}
.dd-breadcrumb a { color: var(--text-3); transition: color .2s; }
.dd-breadcrumb a:hover { color: var(--accent-bright); }
.dd-breadcrumb span { color: var(--accent-bright); }
.dd-page-title { font-size: clamp(38px, 5vw, 58px); max-width: 640px; }
.dd-page-sub { color: var(--text-2); max-width: 560px; margin-top: 20px; font-size: 16px; font-weight: 300; }

/* ═══ ALTERNATING-STRIPS ═══ */
.dd-strip {
  display: flex;
  align-items: center;
  gap: clamp(40px, 6vw, 100px);
}
.dd-strip + .dd-strip { margin-top: clamp(72px, 9vw, 128px); }
.dd-strip:nth-child(even) { flex-direction: row-reverse; }
.dd-strip-media, .dd-strip-text { width: 50%; }
.dd-strip-media img { width: 100%; aspect-ratio: 4/5; object-fit: cover; }
.dd-strip-num {
  font-family: var(--font-heading);
  font-style: italic;
  font-size: 15px;
  color: var(--accent-bright);
  letter-spacing: 2px;
  margin-bottom: 18px;
}
.dd-strip-text h3 { font-size: clamp(28px, 3.2vw, 36px); margin-bottom: 20px; }
.dd-strip-text p { color: var(--text-2); font-size: 15px; font-weight: 300; margin-bottom: 14px; }
.dd-strip-list { margin-top: 22px; display: flex; flex-direction: column; gap: 12px; }
.dd-strip-list li {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 14px;
  color: var(--text-2);
}
.dd-strip-list svg { width: 16px; height: 16px; flex-shrink: 0; color: var(--accent-bright); }

/* ═══ GRID-CARDS: Cards — no border, no shadow, hover opacity ═══ */
.dd-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 44px 32px; }
.dd-card { display: block; }
.dd-card-media { overflow: hidden; }
.dd-card-media img { width: 100%; aspect-ratio: 4/5; object-fit: cover; transition: transform .6s ease; }
.dd-card:hover .dd-card-media img { transform: scale(1.04); }
.dd-card-num {
  font-family: var(--font-heading);
  font-style: italic;
  font-size: 13px;
  color: var(--accent-bright);
  margin-top: 22px;
}
.dd-card-title {
  font-size: 23px;
  margin-top: 8px;
  transition: opacity .3s;
}
.dd-card:hover .dd-card-title { opacity: .58; }
.dd-card-desc { font-size: 14px; color: var(--text-3); margin-top: 10px; font-weight: 300; line-height: 1.6; }
.dd-card-price {
  font-size: 12px;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--text-3);
  margin-top: 14px;
}

/* ═══ STAT-BAR ═══ */
.dd-stats {
  background: linear-gradient(120deg, var(--accent-h) 0%, var(--dark2) 78%);
  padding: clamp(64px, 8vw, 100px) 0;
}
.dd-stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
}
.dd-stat-item { text-align: center; border-left: 1px solid rgba(244,242,236,.14); padding-left: 28px; }
.dd-stat-item:first-child { border-left: none; padding-left: 0; }
.dd-stat-num {
  font-family: var(--font-heading);
  font-style: italic;
  font-weight: 300;
  font-size: clamp(40px, 5vw, 58px);
  color: #fff;
}
.dd-stat-label {
  font-size: 11px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: rgba(244,242,236,.7);
  margin-top: 10px;
}

/* ═══ LIST-ELEGANT (testimonials) ═══ */
.dd-list { border-top: 1px solid var(--border); }
.dd-list-item {
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: 60px;
  padding: 48px 0;
  border-bottom: 1px solid var(--border);
  align-items: center;
}
.dd-list-quote {
  font-family: var(--font-heading);
  font-style: italic;
  font-weight: 300;
  font-size: clamp(20px, 2.2vw, 27px);
  line-height: 1.5;
  color: var(--text);
}
.dd-list-meta { display: flex; align-items: center; gap: 16px; justify-self: end; }
.dd-list-meta img { width: 56px; height: 56px; border-radius: 50%; object-fit: cover; }
.dd-list-name { font-size: 15px; color: var(--text); }
.dd-list-role { font-size: 12px; color: var(--text-3); margin-top: 3px; letter-spacing: .5px; }

/* ═══ FEATURE-ICON-ROW (công nghệ) ═══ */
.dd-feat-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: 40px; }
.dd-feat-item { text-align: left; }
.dd-feat-icon {
  width: 52px;
  height: 52px;
  border: 1px solid var(--border);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-bright);
  margin-bottom: 24px;
}
.dd-feat-icon svg { width: 22px; height: 22px; }
.dd-feat-item h4 { font-size: 20px; margin-bottom: 10px; }
.dd-feat-item p { font-size: 14px; color: var(--text-2); font-weight: 300; line-height: 1.65; }

/* ═══ FULL-BLEED ═══ */
.dd-full-bleed { width: 100%; }
.dd-full-bleed-img { width: 100%; height: clamp(320px, 46vw, 600px); overflow: hidden; }
.dd-full-bleed-img img { width: 100%; height: 100%; object-fit: cover; }

.dd-cta-band {
  background: var(--dark2);
  padding: clamp(80px, 10vw, 140px) 0;
  text-align: center;
}
.dd-cta-band .dd-eyebrow { justify-content: center; }
.dd-cta-band .dd-eyebrow::before { display: none; }
.dd-cta-band h2 { font-size: clamp(34px, 4.6vw, 54px); max-width: 720px; margin: 0 auto; }
.dd-cta-band p { color: var(--text-2); max-width: 480px; margin: 20px auto 0; font-size: 16px; }
.dd-cta-band .dd-hero-actions { justify-content: center; margin-top: 40px; }

/* ═══ Doctor cards (đội ngũ) ═══ */
.dd-doctor-card { display: block; }
.dd-doctor-card .dd-card-media img { aspect-ratio: 3/4; }
.dd-doctor-name { font-size: 22px; margin-top: 22px; }
.dd-doctor-title { font-size: 12px; letter-spacing: 1.6px; text-transform: uppercase; color: var(--accent-bright); margin-top: 6px; }
.dd-doctor-desc { font-size: 14px; color: var(--text-3); margin-top: 12px; font-weight: 300; line-height: 1.6; }
.dd-doctor-social { display: flex; gap: 14px; margin-top: 16px; }
.dd-doctor-social a {
  width: 32px; height: 32px; border: 1px solid var(--border); border-radius: 50%;
  display: flex; align-items: center; justify-content: center; color: var(--text-3);
  transition: border-color .25s, color .25s;
}
.dd-doctor-social a:hover { border-color: var(--accent-bright); color: var(--accent-bright); }

/* ═══ Detail bio block (doi-ngu-bac-si.html) ═══ */
.dd-bio-strip .dd-strip-media img { aspect-ratio: 3/4; }
.dd-bio-tags { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 22px; }
.dd-bio-tag {
  font-size: 11px; letter-spacing: 1.2px; text-transform: uppercase;
  padding: 8px 16px; border: 1px solid var(--border); border-radius: 20px; color: var(--text-2);
}

/* ═══ Forms (đặt lịch / liên hệ) ═══ */
.dd-form-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.dd-field { display: flex; flex-direction: column; gap: 10px; }
.dd-field.full { grid-column: 1 / -1; }
.dd-field label {
  font-size: 11px; letter-spacing: 1.6px; text-transform: uppercase; color: var(--text-3);
}
.dd-field input, .dd-field select, .dd-field textarea {
  background: transparent;
  border: none;
  border-bottom: 1px solid var(--border);
  color: var(--text);
  font-size: 15px;
  padding: 12px 2px;
  font-weight: 300;
  transition: border-color .25s;
}
.dd-field input::placeholder, .dd-field textarea::placeholder { color: var(--text-3); }
.dd-field input:focus, .dd-field select:focus, .dd-field textarea:focus {
  outline: none; border-color: var(--accent-bright);
}
.dd-field select option { background: var(--surface); color: var(--text); }
.dd-field textarea { resize: vertical; min-height: 100px; }
.dd-form-note { font-size: 12px; color: var(--text-3); margin-top: 8px; }
.dd-form-success {
  display: none;
  border: 1px solid var(--accent-bright);
  background: var(--accent-light);
  color: var(--text);
  padding: 18px 22px;
  font-size: 14px;
  margin-top: 24px;
}
.dd-form-success.show { display: block; }

.dd-booking-wrap { display: grid; grid-template-columns: 1fr 380px; gap: 80px; align-items: start; }
.dd-booking-info { border-left: 1px solid var(--border); padding-left: 44px; }
.dd-booking-info-item { padding: 22px 0; border-bottom: 1px solid var(--border-light); }
.dd-booking-info-item h4 { font-size: 12px; letter-spacing: 1.6px; text-transform: uppercase; color: var(--text-3); margin-bottom: 8px; }
.dd-booking-info-item p, .dd-booking-info-item a { font-size: 15px; color: var(--text); font-weight: 300; }

/* ═══ Contact page ═══ */
.dd-contact-wrap { display: grid; grid-template-columns: 380px 1fr; gap: 80px; align-items: start; }
.dd-contact-item { padding: 26px 0; border-bottom: 1px solid var(--border); }
.dd-contact-item h4 { font-size: 12px; letter-spacing: 1.6px; text-transform: uppercase; color: var(--accent-bright); margin-bottom: 10px; }
.dd-contact-item p, .dd-contact-item a { font-size: 16px; color: var(--text); font-weight: 300; display: block; }
.dd-map-placeholder {
  width: 100%;
  aspect-ratio: 16/10;
  background: var(--dark2);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 14px;
  color: var(--text-3);
}
.dd-map-placeholder svg { width: 36px; height: 36px; color: var(--accent-bright); }
.dd-map-placeholder span { font-size: 12px; letter-spacing: 1.5px; text-transform: uppercase; }

/* ═══ Footer — Dark full-bleed, minimal 2-col ═══ */
.dd-footer { background: var(--dark); padding: 96px 0 32px; }
.dd-footer-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 64px;
  padding-bottom: 64px;
  border-bottom: 1px solid var(--border-light);
}
.dd-footer-brand .dd-logo-main { font-size: 30px; }
.dd-footer-desc { color: var(--text-3); font-size: 14px; margin-top: 20px; max-width: 340px; font-weight: 300; line-height: 1.7; }
.dd-footer-cols { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; }
.dd-footer-col h5 {
  font-size: 11px; letter-spacing: 2px; text-transform: uppercase; color: var(--text-3); margin-bottom: 20px; font-weight: 500; font-family: var(--font-body); font-style: normal;
}
.dd-footer-col a, .dd-footer-col p {
  display: block; font-size: 14px; color: var(--text-2); margin-bottom: 12px; font-weight: 300; transition: color .2s;
}
.dd-footer-col a:hover { color: var(--accent-bright); }
.dd-footer-bottom {
  display: flex; justify-content: center; align-items: center; padding-top: 32px; text-align: center;
}
.dd-footer-bottom p { font-size: 12px; color: var(--text-3); letter-spacing: .5px; }

/* ═══ Zalo float ═══ */
.dd-zalo {
  position: fixed;
  bottom: 26px;
  right: 26px;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: #0068FF;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 998;
  box-shadow: 0 10px 28px rgba(0,104,255,.42);
  transition: transform .25s;
}
.dd-zalo:hover { transform: scale(1.08); }
.dd-zalo svg { width: 26px; height: 26px; }

/* ═══ Reveal animation ═══ */
[data-reveal] { opacity: 0; transform: translateY(30px); transition: opacity .8s ease, transform .8s ease; }
[data-reveal].visible { opacity: 1; transform: none; }
[data-reveal="d1"] { transition-delay: .1s; }
[data-reveal="d2"] { transition-delay: .2s; }
[data-reveal="d3"] { transition-delay: .3s; }

/* ═══ Responsive ═══ */
@media (max-width: 1080px) {
  .dd-grid { grid-template-columns: repeat(2, 1fr); }
  .dd-feat-row { grid-template-columns: repeat(2, 1fr); }
  .dd-stats-grid { grid-template-columns: repeat(2, 1fr); gap: 36px 24px; }
  .dd-stat-item:nth-child(3) { border-left: none; padding-left: 0; }
  .dd-booking-wrap, .dd-contact-wrap { grid-template-columns: 1fr; gap: 48px; }
  .dd-booking-info { border-left: none; padding-left: 0; border-top: 1px solid var(--border); padding-top: 32px; }
}

@media (max-width: 991px) {
  .dd-nav-links { display: none; }
  .dd-burger { display: flex; }
  .dd-hero { flex-direction: column; min-height: auto; }
  .dd-hero-left, .dd-hero-right { width: 100%; }
  .dd-hero-left { padding: 140px 24px 56px; }
  .dd-hero-right { min-height: 380px; }
  .dd-strip { flex-direction: column !important; }
  .dd-strip-media, .dd-strip-text { width: 100%; }
  .dd-footer-grid { grid-template-columns: 1fr; }
  .dd-footer-cols { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 640px) {
  .dd-grid { grid-template-columns: 1fr; }
  .dd-feat-row { grid-template-columns: 1fr; }
  .dd-stats-grid { grid-template-columns: repeat(2, 1fr); }
  .dd-list-item { grid-template-columns: 1fr; gap: 20px; }
  .dd-list-meta { justify-self: start; }
  .dd-form-grid { grid-template-columns: 1fr; }
  .dd-footer-cols { grid-template-columns: 1fr 1fr; gap: 24px; }
  .dd-sec-head { flex-direction: column; align-items: flex-start; }
}

@media (max-width: 420px) {
  .dd-footer-cols { grid-template-columns: 1fr; }
  .dd-hero-actions { flex-direction: column; align-items: flex-start; }
}