/* ══ SUNRISE — NHA KHOA GIA ĐÌNH — FRESH-MINIMAL ══
   Font: Plus Jakarta Sans (heading + body, heading weight 600)
   Tone: light-dominant, whitespace rộng rãi
   Accent: Sky Blue #2f8fd1 (y tế tươi mát)
   Nav: Transparent → Scrolled (Nav-1)
   Hero: Centered Minimal (H4)
   Prefix class: sr-
   ──────────────────────────────────────── */

:root {
  --bg: #f8fafc;
  --surface: #ffffff;
  --dark: #0f2534;
  --dark2: #163449;
  --border: #e2e8ef;
  --border-light: #edf2f6;
  --text: #142430;
  --text-2: #5c7180;
  --text-3: #97a7b2;
  --accent: #2f8fd1;
  --accent-h: #2477b0;
  --accent-light: #eaf5fc;
  --accent-mid: #5aa8dc;
  --accent-pale: #f2f9fd;
  --warm: #f3f7fa;
  --warm2: #eaf1f5;
  --danger: #e0524f;
  --sans: 'Plus Jakarta Sans', sans-serif;
  --bs-body-font-family: var(--sans);
  --bs-body-bg: var(--bg);
  --bs-body-color: var(--text);
  --bs-border-color: var(--border);
}

/* ── Base ── */
html { scroll-behavior: smooth; }
body { font-family: var(--sans); background: var(--bg); color: var(--text); overflow-x: hidden; -webkit-font-smoothing: antialiased; }
*, *::before, *::after { box-sizing: border-box; }
::-webkit-scrollbar { width: 5px; }
::-webkit-scrollbar-track { background: var(--warm); }
::-webkit-scrollbar-thumb { background: var(--accent-mid); border-radius: 4px; opacity: .4; }
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
h1, h2, h3, h4, h5, h6 { font-family: var(--sans); font-weight: 600; margin: 0; }
p { margin: 0; }
button { font-family: var(--sans); }

/* ── Layout ── */
.wd-container { max-width: 1100px; margin: 0 auto; padding: 0 clamp(20px, 5vw, 80px); }
.sec-pad { padding: clamp(72px, 10vw, 128px) 0; }

/* ── Reveal Animation ── */
[data-reveal] {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity .7s cubic-bezier(.16,1,.3,1), transform .7s cubic-bezier(.16,1,.3,1);
}
[data-reveal].visible { opacity: 1; transform: none; }
[data-reveal][data-delay="1"] { transition-delay: .1s; }
[data-reveal][data-delay="2"] { transition-delay: .2s; }
[data-reveal][data-delay="3"] { transition-delay: .3s; }
[data-reveal][data-delay="4"] { transition-delay: .4s; }

/* ── Section header ── */
.sr-eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 12px; font-weight: 600; color: var(--accent);
  text-transform: uppercase; letter-spacing: 1.8px; margin-bottom: 14px;
}
.sr-eyebrow::before { content: ''; width: 16px; height: 2px; background: var(--accent); border-radius: 2px; }
.sr-sec-title { font-size: clamp(28px, 3.6vw, 42px); font-weight: 600; color: var(--text); line-height: 1.18; letter-spacing: -.6px; }
.sr-sec-title em { color: var(--accent); font-style: normal; font-weight: 600; }
.sr-sec-sub { font-size: 16px; font-weight: 400; color: var(--text-2); line-height: 1.7; max-width: 560px; margin-top: 14px; }
.sr-center { text-align: center; margin-left: auto; margin-right: auto; }

/* ══ NAV — Transparent → Scrolled (Nav-1) ══ */
#nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 999;
  background: transparent; padding: 22px 0;
  transition: background .35s, box-shadow .35s, padding .35s;
}
#nav.scrolled {
  background: rgba(255,255,255,.92);
  backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px);
  box-shadow: 0 1px 0 var(--border);
  padding: 13px 0;
}
.sr-nav-inner { display: flex; align-items: center; justify-content: space-between; gap: 24px; }

.sr-logo { display: flex; align-items: center; gap: 11px; text-decoration: none; }
.sr-logo-mark {
  width: 40px; height: 40px; border-radius: 12px; flex-shrink: 0;
  background: var(--accent);
  display: flex; align-items: center; justify-content: center;
}
.sr-logo-mark svg { width: 20px; height: 20px; }
.sr-logo-text { display: flex; flex-direction: column; line-height: 1; }
.sr-logo-name { font-size: 16px; font-weight: 600; color: var(--text); letter-spacing: -.2px; }
.sr-logo-sub { font-size: 9px; font-weight: 500; color: var(--accent); text-transform: uppercase; letter-spacing: 1.6px; margin-top: 3px; }

.sr-nav-links { display: flex; gap: 2px; }
.sr-nav-links a {
  font-size: 14px; font-weight: 500; color: var(--text-2);
  padding: 9px 17px; border-radius: 9999px;
  text-decoration: none; transition: color .2s, background .2s;
}
.sr-nav-links a:hover { color: var(--accent); background: var(--accent-light); }
.sr-nav-links a.active { color: var(--accent); background: var(--accent-light); font-weight: 600; }

.sr-nav-cta {
  font-size: 14px; font-weight: 600;
  background: var(--accent); color: #fff;
  padding: 12px 24px; border-radius: 9999px; border: none;
  cursor: pointer; font-family: var(--sans);
  text-decoration: none; display: inline-block; white-space: nowrap;
  transition: background .2s, transform .2s;
}
.sr-nav-cta:hover { background: var(--accent-h); color: #fff; transform: translateY(-1px); }

.sr-burger { display: none; flex-direction: column; gap: 5px; cursor: pointer; padding: 8px; border: none; background: transparent; }
.sr-burger span { display: block; width: 22px; height: 2px; background: var(--text); border-radius: 2px; transition: all .3s; }
.sr-burger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.sr-burger.open span:nth-child(2) { opacity: 0; }
.sr-burger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.sr-mobile-menu {
  position: fixed; inset: 0; background: #fff; z-index: 998;
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 6px;
  opacity: 0; pointer-events: none; transition: opacity .3s;
}
.sr-mobile-menu.open { opacity: 1; pointer-events: auto; }
.sr-mobile-menu a { font-size: 19px; font-weight: 600; color: var(--text); padding: 12px 26px; border-radius: 9999px; text-decoration: none; }
.sr-mobile-menu a:hover { background: var(--accent-light); color: var(--accent); }
.sr-mobile-menu .sr-mob-cta { background: var(--accent); color: #fff; margin-top: 18px; }
.sr-mobile-menu .sr-mob-cta:hover { background: var(--accent-h); color: #fff; }

@media (max-width: 900px) {
  .sr-nav-links { display: none; }
  .sr-nav-cta { display: none; }
  .sr-burger { display: flex; }
}

/* ── Buttons ── */
.sr-btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  font-family: var(--sans); font-size: 15px; font-weight: 600;
  padding: 14px 28px; border-radius: 9999px; border: none;
  cursor: pointer; text-decoration: none; transition: all .22s;
  white-space: nowrap;
}
.sr-btn-primary { background: var(--accent); color: #fff; }
.sr-btn-primary:hover { background: var(--accent-h); color: #fff; transform: translateY(-2px); box-shadow: 0 12px 28px rgba(47,143,209,.28); }
.sr-btn-ghost { background: transparent; border: 1.5px solid var(--border); color: var(--text); }
.sr-btn-ghost:hover { background: var(--warm); border-color: var(--text-3); }
.sr-btn-white { background: #fff; color: var(--dark); }
.sr-btn-white:hover { background: var(--accent-light); color: var(--accent-h); transform: translateY(-2px); }
.sr-btn-outline-dark { background: transparent; border: 1.5px solid rgba(255,255,255,.25); color: rgba(255,255,255,.85); }
.sr-btn-outline-dark:hover { border-color: rgba(255,255,255,.55); background: rgba(255,255,255,.06); }
.sr-btn-sm { padding: 10px 20px; font-size: 13px; }
.sr-btn-block { width: 100%; }

/* ══ HERO — Centered Minimal (H4) ══ */
.sr-hero {
  padding: clamp(150px, 20vw, 210px) 0 clamp(80px, 9vw, 110px);
  text-align: center;
  background: linear-gradient(180deg, var(--accent-pale) 0%, var(--bg) 65%);
  position: relative; overflow: hidden;
}
.sr-hero-blob {
  position: absolute; top: -120px; left: 50%; transform: translateX(-50%);
  width: 700px; height: 700px; border-radius: 50%;
  background: radial-gradient(circle, rgba(47,143,209,.10) 0%, transparent 68%);
  pointer-events: none;
}
.sr-hero-inner { position: relative; z-index: 1; max-width: 680px; margin: 0 auto; }
.sr-hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 12px; font-weight: 600; color: var(--accent);
  background: #fff; border: 1px solid var(--border);
  padding: 8px 18px; border-radius: 9999px; margin-bottom: 28px;
  box-shadow: 0 4px 16px rgba(15,37,52,.05);
}
.sr-hero-badge-dot { width: 6px; height: 6px; border-radius: 50%; background: var(--accent); animation: sr-pulse 2.4s infinite; }
@keyframes sr-pulse { 0%,100%{opacity:1} 50%{opacity:.25} }
.sr-hero-title { font-size: clamp(36px, 5.4vw, 60px); font-weight: 600; color: var(--text); line-height: 1.1; letter-spacing: -1.4px; margin-bottom: 22px; }
.sr-hero-title em { color: var(--accent); font-style: normal; }
.sr-hero-sub { font-size: clamp(15px, 1.3vw, 17px); font-weight: 400; color: var(--text-2); line-height: 1.75; max-width: 500px; margin: 0 auto 36px; }
.sr-hero-actions { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; margin-bottom: 44px; }
.sr-hero-meta { display: flex; gap: 28px; justify-content: center; flex-wrap: wrap; }
.sr-hero-meta-item { display: flex; align-items: center; gap: 9px; font-size: 13px; font-weight: 500; color: var(--text-2); }
.sr-hero-meta-avatars { display: flex; }
.sr-hero-meta-avatars img { width: 26px; height: 26px; border-radius: 50%; border: 2px solid #fff; object-fit: cover; margin-left: -8px; }
.sr-hero-meta-avatars img:first-child { margin-left: 0; }
.sr-hero-meta-stars { color: #f59e0b; letter-spacing: 1px; }

.sr-hero-image-wrap { position: relative; max-width: 460px; margin: 56px auto 0; }
.sr-hero-image {
  border-radius: 32px; overflow: hidden; box-shadow: 0 30px 70px rgba(15,37,52,.16);
  animation: sr-float 6s ease-in-out infinite;
}
.sr-hero-image img { width: 100%; aspect-ratio: 4/3; object-fit: cover; }
@keyframes sr-float { 0%,100%{transform:translateY(0)} 50%{transform:translateY(-14px)} }
.sr-hero-float-card {
  position: absolute; bottom: -22px; left: -28px;
  background: #fff; border-radius: 16px; padding: 14px 18px;
  display: flex; align-items: center; gap: 12px;
  box-shadow: 0 16px 40px rgba(15,37,52,.14);
  border: 1px solid var(--border-light);
}
.sr-hero-float-icon { width: 38px; height: 38px; border-radius: 10px; background: var(--accent-light); display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.sr-hero-float-num { font-size: 18px; font-weight: 700; color: var(--text); line-height: 1; }
.sr-hero-float-label { font-size: 11px; font-weight: 400; color: var(--text-2); margin-top: 2px; }

@media (max-width: 560px) {
  .sr-hero-float-card { left: 50%; transform: translateX(-50%); bottom: -18px; white-space: nowrap; }
}

/* ══ FEATURE-ICON-ROW ══ */
.sr-feat-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px; }
.sr-feat-item { text-align: center; padding: 0 8px; }
.sr-feat-icon {
  width: 60px; height: 60px; border-radius: 18px; margin: 0 auto 20px;
  background: var(--accent-light); display: flex; align-items: center; justify-content: center;
  transition: transform .3s, background .3s;
}
.sr-feat-item:hover .sr-feat-icon { background: var(--accent); transform: scale(1.06); }
.sr-feat-item:hover .sr-feat-icon svg { stroke: #fff; }
.sr-feat-icon svg { width: 26px; height: 26px; stroke: var(--accent); transition: stroke .3s; }
.sr-feat-title { font-size: 17px; font-weight: 600; color: var(--text); margin-bottom: 8px; }
.sr-feat-text { font-size: 14px; font-weight: 400; color: var(--text-2); line-height: 1.6; }

@media (max-width: 900px) { .sr-feat-row { grid-template-columns: repeat(2, 1fr); gap: 36px 20px; } }
@media (max-width: 480px) { .sr-feat-row { grid-template-columns: 1fr; } }

/* ══ ALTERNATING-STRIPS ══ */
.sr-strip { padding: clamp(48px, 6vw, 72px) 0; }
.sr-strip-row { display: flex; align-items: center; gap: clamp(32px, 6vw, 80px); }
.sr-strip-row.sr-strip-rev { flex-direction: row-reverse; }
.sr-strip-media, .sr-strip-content { flex: 1 1 0; min-width: 0; }
.sr-strip-media { position: relative; }
.sr-strip-img { border-radius: 24px; overflow: hidden; box-shadow: 0 24px 56px rgba(15,37,52,.12); }
.sr-strip-img img { width: 100%; aspect-ratio: 5/4; object-fit: cover; }
.sr-strip-badge {
  position: absolute; bottom: -18px; right: -18px;
  background: var(--accent); color: #fff;
  padding: 16px 20px; border-radius: 16px;
  box-shadow: 0 16px 34px rgba(47,143,209,.32);
}
.sr-strip-badge-num { font-size: 22px; font-weight: 700; line-height: 1; }
.sr-strip-badge-label { font-size: 11px; font-weight: 400; opacity: .85; margin-top: 3px; }
.sr-strip-list { list-style: none; padding: 0; margin: 20px 0 0; display: flex; flex-direction: column; gap: 12px; }
.sr-strip-list li { display: flex; align-items: flex-start; gap: 10px; font-size: 14.5px; font-weight: 400; color: var(--text-2); line-height: 1.5; }
.sr-strip-list li svg { flex-shrink: 0; width: 18px; height: 18px; stroke: var(--accent); margin-top: 1px; }

@media (max-width: 860px) {
  .sr-strip-row, .sr-strip-row.sr-strip-rev { flex-direction: column; }
}

/* ══ TIMELINE ══ */
.sr-timeline { position: relative; max-width: 780px; margin: 0 auto; }
.sr-timeline::before { content: ''; position: absolute; left: 27px; top: 6px; bottom: 6px; width: 2px; background: var(--border); }
.sr-timeline-item { display: flex; gap: 24px; position: relative; padding-bottom: 40px; }
.sr-timeline-item:last-child { padding-bottom: 0; }
.sr-timeline-dot {
  width: 56px; height: 56px; border-radius: 50%; flex-shrink: 0;
  background: #fff; border: 2px solid var(--accent-light);
  display: flex; align-items: center; justify-content: center;
  font-size: 16px; font-weight: 700; color: var(--accent);
  position: relative; z-index: 1;
}
.sr-timeline-item.is-active .sr-timeline-dot { background: var(--accent); color: #fff; border-color: var(--accent); }
.sr-timeline-content { padding-top: 8px; }
.sr-timeline-title { font-size: 17px; font-weight: 600; color: var(--text); margin-bottom: 6px; }
.sr-timeline-text { font-size: 14px; font-weight: 400; color: var(--text-2); line-height: 1.65; max-width: 500px; }

/* ══ STAT-BAR ══ */
.sr-stat-bar { background: var(--dark); padding: clamp(48px, 6vw, 64px) 0; }
.sr-stat { text-align: center; }
.sr-stat-num { font-size: clamp(30px, 4vw, 42px); font-weight: 700; color: #fff; line-height: 1; letter-spacing: -1px; }
.sr-stat-num span { color: var(--accent-mid); }
.sr-stat-label { font-size: 13px; font-weight: 400; color: rgba(255,255,255,.55); margin-top: 8px; }
.sr-stat-divider { width: 1px; background: rgba(255,255,255,.1); }

/* ══ GRID-CARDS ══ */
.sr-card-grid { display: grid; gap: 24px; }
.sr-card {
  background: #fff; border: 1px solid var(--border); border-radius: 20px;
  padding: 32px 28px; transition: transform .3s cubic-bezier(.16,1,.3,1), box-shadow .3s, border-color .3s;
  height: 100%;
}
.sr-card:hover { transform: translateY(-8px); box-shadow: 0 24px 48px rgba(15,37,52,.1); border-color: transparent; }
.sr-card-icon {
  width: 52px; height: 52px; border-radius: 15px; margin-bottom: 20px;
  background: var(--accent-light); display: flex; align-items: center; justify-content: center;
}
.sr-card-icon svg { width: 24px; height: 24px; stroke: var(--accent); }
.sr-card-title { font-size: 17px; font-weight: 600; color: var(--text); margin-bottom: 10px; }
.sr-card-text { font-size: 14px; font-weight: 400; color: var(--text-2); line-height: 1.65; margin-bottom: 18px; }
.sr-card-foot { display: flex; align-items: center; justify-content: space-between; padding-top: 16px; border-top: 1px solid var(--border-light); }
.sr-card-price { font-size: 14px; font-weight: 700; color: var(--accent); }
.sr-card-price span { font-size: 12px; font-weight: 400; color: var(--text-3); }
.sr-card-link { font-size: 13px; font-weight: 600; color: var(--accent); display: inline-flex; align-items: center; gap: 5px; }
.sr-card-link svg { width: 14px; height: 14px; stroke: var(--accent); transition: transform .2s; }
.sr-card:hover .sr-card-link svg { transform: translateX(3px); }

/* Card with image (services/doctors) */
.sr-card-img { border-radius: 20px; overflow: hidden; border: 1px solid var(--border); background: #fff; transition: transform .3s cubic-bezier(.16,1,.3,1), box-shadow .3s; height: 100%; }
.sr-card-img:hover { transform: translateY(-8px); box-shadow: 0 24px 48px rgba(15,37,52,.1); }
.sr-card-img-media { overflow: hidden; aspect-ratio: 4/3; }
.sr-card-img-media img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s; }
.sr-card-img:hover .sr-card-img-media img { transform: scale(1.06); }
.sr-card-img-body { padding: 22px 24px 26px; }
.sr-card-tag { display: inline-block; font-size: 11px; font-weight: 600; color: var(--accent); background: var(--accent-light); padding: 4px 12px; border-radius: 9999px; margin-bottom: 12px; text-transform: uppercase; letter-spacing: .5px; }

/* ══ DOCTOR CARDS ══ */
.sr-doc-card { background: #fff; border: 1px solid var(--border); border-radius: 20px; overflow: hidden; transition: transform .3s cubic-bezier(.16,1,.3,1), box-shadow .3s; height: 100%; }
.sr-doc-card:hover { transform: translateY(-8px); box-shadow: 0 24px 48px rgba(15,37,52,.1); }
.sr-doc-photo { aspect-ratio: 3/4; overflow: hidden; }
.sr-doc-photo img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s; }
.sr-doc-card:hover .sr-doc-photo img { transform: scale(1.05); }
.sr-doc-body { padding: 22px 24px 26px; }
.sr-doc-name { font-size: 17px; font-weight: 600; color: var(--text); margin-bottom: 3px; }
.sr-doc-role { font-size: 13px; font-weight: 500; color: var(--accent); margin-bottom: 12px; }
.sr-doc-tags { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 14px; }
.sr-doc-tags span { font-size: 11px; font-weight: 500; color: var(--text-2); background: var(--warm); padding: 5px 11px; border-radius: 9999px; }
.sr-doc-quote { font-size: 13px; font-weight: 400; font-style: italic; color: var(--text-2); line-height: 1.6; border-top: 1px solid var(--border-light); padding-top: 14px; }

/* ══ TESTIMONIALS ══ */
.sr-test-card { background: var(--warm); border-radius: 20px; padding: 30px 28px; height: 100%; }
.sr-test-stars { color: #f59e0b; font-size: 14px; letter-spacing: 2px; margin-bottom: 16px; }
.sr-test-quote { font-size: 15px; font-weight: 400; color: var(--text); line-height: 1.75; margin-bottom: 22px; }
.sr-test-author { display: flex; align-items: center; gap: 12px; }
.sr-test-avatar { width: 44px; height: 44px; border-radius: 50%; object-fit: cover; flex-shrink: 0; }
.sr-test-name { font-size: 14px; font-weight: 600; color: var(--text); }
.sr-test-meta { font-size: 12px; font-weight: 400; color: var(--text-3); }

/* ══ CTA DARK ══ */
.sr-cta { background: var(--dark); border-radius: 32px; padding: clamp(48px, 7vw, 80px) clamp(28px, 6vw, 64px); text-align: center; position: relative; overflow: hidden; }
.sr-cta::before { content: ''; position: absolute; top: -100px; right: -100px; width: 320px; height: 320px; border-radius: 50%; background: radial-gradient(circle, rgba(47,143,209,.22) 0%, transparent 70%); }
.sr-cta-title { font-size: clamp(26px, 3.4vw, 38px); font-weight: 600; color: #fff; line-height: 1.2; letter-spacing: -.6px; margin-bottom: 16px; position: relative; z-index: 1; }
.sr-cta-title em { color: var(--accent-mid); font-style: normal; }
.sr-cta-sub { font-size: 15px; font-weight: 400; color: rgba(255,255,255,.6); max-width: 480px; margin: 0 auto 32px; line-height: 1.7; position: relative; z-index: 1; }
.sr-cta-actions { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; position: relative; z-index: 1; }

/* ══ PAGE HEADER (sub-pages) ══ */
.sr-page-header { padding: clamp(140px, 16vw, 180px) 0 clamp(56px, 7vw, 80px); text-align: center; background: linear-gradient(180deg, var(--accent-pale) 0%, var(--bg) 100%); }
.sr-page-header-title { font-size: clamp(32px, 4.4vw, 50px); font-weight: 600; color: var(--text); letter-spacing: -1px; line-height: 1.15; }
.sr-page-header-title em { color: var(--accent); font-style: normal; }
.sr-page-header-sub { font-size: 15px; font-weight: 400; color: var(--text-2); max-width: 540px; margin: 16px auto 0; line-height: 1.7; }
.sr-breadcrumb { display: flex; align-items: center; justify-content: center; gap: 8px; font-size: 13px; font-weight: 500; color: var(--text-3); margin-bottom: 18px; }
.sr-breadcrumb a { color: var(--text-2); }
.sr-breadcrumb a:hover { color: var(--accent); }
.sr-breadcrumb span { color: var(--accent); }

/* ══ CATEGORY GROUP (dich-vu.html) ══ */
.sr-cat-head { display: flex; align-items: center; gap: 14px; margin-bottom: 28px; }
.sr-cat-num { width: 38px; height: 38px; border-radius: 50%; background: var(--accent); color: #fff; font-size: 14px; font-weight: 700; display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.sr-cat-title { font-size: 20px; font-weight: 600; color: var(--text); }
.sr-cat-sub { font-size: 13px; font-weight: 400; color: var(--text-2); margin-top: 2px; }
.sr-cat-group { margin-bottom: 56px; }
.sr-cat-group:last-child { margin-bottom: 0; }

/* ══ FORMS (dat-lich.html / lien-he.html) ══ */
.sr-form-panel { background: #fff; border: 1px solid var(--border); border-radius: 24px; padding: clamp(28px, 4vw, 44px); }
.sr-field { margin-bottom: 20px; }
.sr-field label { display: block; font-size: 13px; font-weight: 600; color: var(--text); margin-bottom: 8px; }
.sr-field .req { color: var(--danger); }
.sr-input, .sr-select, .sr-textarea {
  width: 100%; font-family: var(--sans); font-size: 14.5px; color: var(--text);
  background: var(--warm); border: 1.5px solid var(--border); border-radius: 12px;
  padding: 13px 16px; transition: border-color .2s, background .2s;
}
.sr-input:focus, .sr-select:focus, .sr-textarea:focus { outline: none; border-color: var(--accent); background: #fff; }
.sr-textarea { resize: vertical; min-height: 110px; }
.sr-select { appearance: none; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%235c7180' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 14px center; padding-right: 40px; }
.sr-form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
@media (max-width: 560px) { .sr-form-row { grid-template-columns: 1fr; } }
.sr-form-note { font-size: 12.5px; color: var(--text-3); margin-top: 4px; line-height: 1.6; }
.sr-form-success { display: none; align-items: center; gap: 12px; background: var(--accent-light); border: 1px solid var(--accent-mid); border-radius: 14px; padding: 16px 18px; margin-bottom: 20px; }
.sr-form-success.show { display: flex; }
.sr-form-success svg { width: 22px; height: 22px; stroke: var(--accent); flex-shrink: 0; }
.sr-form-success span { font-size: 14px; font-weight: 500; color: var(--accent-h); }

/* ── Sidebar info (dat-lich.html) ── */
.sr-info-card { background: var(--dark); border-radius: 24px; padding: 32px 28px; color: #fff; }
.sr-info-title { font-size: 18px; font-weight: 600; margin-bottom: 20px; }
.sr-info-item { display: flex; gap: 14px; align-items: flex-start; margin-bottom: 20px; }
.sr-info-item:last-child { margin-bottom: 0; }
.sr-info-icon { width: 40px; height: 40px; border-radius: 12px; background: rgba(255,255,255,.08); display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.sr-info-icon svg { width: 18px; height: 18px; stroke: var(--accent-mid); }
.sr-info-label { font-size: 11px; font-weight: 500; color: rgba(255,255,255,.5); text-transform: uppercase; letter-spacing: .8px; margin-bottom: 3px; }
.sr-info-value { font-size: 14px; font-weight: 500; color: #fff; line-height: 1.55; }

/* ── Contact info cards (lien-he.html) ── */
.sr-contact-card { background: #fff; border: 1px solid var(--border); border-radius: 20px; padding: 26px 24px; text-align: center; height: 100%; transition: transform .3s, box-shadow .3s; }
.sr-contact-card:hover { transform: translateY(-8px); box-shadow: 0 24px 48px rgba(15,37,52,.1); }
.sr-contact-icon { width: 52px; height: 52px; border-radius: 15px; background: var(--accent-light); display: flex; align-items: center; justify-content: center; margin: 0 auto 16px; }
.sr-contact-icon svg { width: 24px; height: 24px; stroke: var(--accent); }
.sr-contact-label { font-size: 13px; font-weight: 600; color: var(--text-2); text-transform: uppercase; letter-spacing: .6px; margin-bottom: 8px; }
.sr-contact-value { font-size: 15px; font-weight: 600; color: var(--text); line-height: 1.55; }

/* ── Map placeholder ── */
.sr-map { border-radius: 24px; overflow: hidden; border: 1px solid var(--border); aspect-ratio: 16/7; background: var(--warm) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='60' height='60'%3E%3Cpath d='M0 30h60M30 0v60' stroke='%23e2e8ef' stroke-width='1'/%3E%3C/svg%3E"); display: flex; align-items: center; justify-content: center; flex-direction: column; gap: 10px; }
.sr-map-pin { width: 52px; height: 52px; border-radius: 50%; background: var(--accent); display: flex; align-items: center; justify-content: center; box-shadow: 0 10px 26px rgba(47,143,209,.3); }
.sr-map-pin svg { width: 26px; height: 26px; stroke: #fff; }
.sr-map-text { font-size: 13.5px; font-weight: 500; color: var(--text-2); }

/* ══ FOOTER — Light, 4-col ══ */
footer { background: var(--surface); border-top: 1px solid var(--border); }
.sr-ft-top { padding: clamp(56px, 7vw, 80px) 0 44px; }
.sr-ft-logo { display: flex; align-items: center; gap: 11px; margin-bottom: 18px; }
.sr-ft-logo-mark { width: 40px; height: 40px; border-radius: 12px; background: var(--accent); display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.sr-ft-logo-mark svg { width: 20px; height: 20px; }
.sr-ft-logo-name { font-size: 16px; font-weight: 600; color: var(--text); }
.sr-ft-logo-sub { font-size: 9px; font-weight: 500; color: var(--accent); text-transform: uppercase; letter-spacing: 1.5px; margin-top: 3px; }
.sr-ft-desc { font-size: 14px; font-weight: 400; color: var(--text-2); line-height: 1.7; max-width: 320px; margin-bottom: 20px; }
.sr-ft-socials { display: flex; gap: 10px; }
.sr-ft-soc { width: 36px; height: 36px; border-radius: 50%; background: var(--warm); display: flex; align-items: center; justify-content: center; font-size: 13px; font-weight: 600; color: var(--text-2); transition: background .2s, color .2s; }
.sr-ft-soc:hover { background: var(--accent); color: #fff; }
.sr-ft-col-title { font-size: 13px; font-weight: 600; color: var(--text); text-transform: uppercase; letter-spacing: .8px; margin-bottom: 20px; }
.sr-ft-links { display: flex; flex-direction: column; gap: 12px; }
.sr-ft-links a { font-size: 14px; font-weight: 400; color: var(--text-2); transition: color .2s; }
.sr-ft-links a:hover { color: var(--accent); }
.sr-ft-contact-item { display: flex; gap: 12px; margin-bottom: 16px; align-items: flex-start; }
.sr-ft-contact-item:last-child { margin-bottom: 0; }
.sr-ft-contact-icon { width: 34px; height: 34px; border-radius: 10px; background: var(--accent-light); display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.sr-ft-contact-icon svg { width: 16px; height: 16px; stroke: var(--accent); }
.sr-ft-contact-text { font-size: 13.5px; font-weight: 400; color: var(--text-2); line-height: 1.6; }
.sr-ft-contact-text strong { display: block; font-size: 13px; font-weight: 600; color: var(--text); margin-bottom: 2px; }
.sr-ft-bottom { border-top: 1px solid var(--border-light); padding: 22px 0; display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 12px; }
.sr-ft-copy { font-size: 12.5px; font-weight: 400; color: var(--text-3); }
.sr-ft-cert { display: flex; gap: 18px; flex-wrap: wrap; }
.sr-ft-cert span { font-size: 12px; font-weight: 500; color: var(--text-3); }

/* ══ ZALO FLOAT ══ */
.sr-zalo {
  position: fixed; bottom: 26px; right: 26px; z-index: 500;
  width: 56px; height: 56px; border-radius: 50%;
  background: #0068FF; display: flex; align-items: center; justify-content: center;
  box-shadow: 0 8px 24px rgba(0,104,255,.4);
  transition: transform .25s, box-shadow .25s;
}
.sr-zalo:hover { transform: scale(1.1); box-shadow: 0 10px 30px rgba(0,104,255,.5); }
.sr-zalo svg { width: 28px; height: 28px; }

/* ── Utility ── */
.sr-mb-0 { margin-bottom: 0 !important; }
.sr-fade-note { font-size: 13px; color: var(--text-3); }