/* ==========================================================================
   INTRO (Giới thiệu) — CSS riêng
   ========================================================================== */

/* 6 thế mạnh ---------------------------------------------------------------- */
.strengths { padding: 56px 0 34px; }
.strengths__title { text-align: center; font: 600 62px/1.2 var(--ff-heading); color: var(--c-heading); }
.strengths__sub { text-align: center; margin: 20px 0 26px; font: 500 20px/1.2 var(--ff-heading); color: var(--c-sub); }
.strengths__grid { --bs-gutter-x: 60px; --bs-gutter-y: 50px; max-width: 1341px; margin-left: auto; margin-right: auto; }
.strength-card {
  height: 100%; padding: 25px 35px 24px;
  background: #fff; border-radius: var(--radius);
  box-shadow: 0 6px 24px rgba(1, 22, 50, .1);
  text-align: center;
  transition: transform var(--t), box-shadow var(--t);
}
.strength-card__num {
  display: inline-grid; place-items: center;
  width: 47px; height: 47px; border-radius: 50%;
  background: var(--c-accent); color: #fff;
  font: 600 24px/1 var(--ff-body);
  box-shadow: 0 0 0 0 rgba(255,134,101,.5);
  transition: transform var(--t);
}
.strength-card__title { margin-top: 24px; font: 500 24px/1.2 var(--ff-heading); color: var(--c-heading); }
.strength-card__desc { margin-top: 16px; font: 400 14px/1.55 var(--ff-body); color: var(--c-sub); }
.strength-card:hover { transform: translateY(-8px); box-shadow: 0 18px 40px rgba(1, 22, 50, .16); }
.strength-card:hover .strength-card__num { transform: rotateY(360deg); transition: transform .8s var(--ease); animation: pulseNum 1.2s ease-out; }
@keyframes pulseNum { from { box-shadow: 0 0 0 0 rgba(255,134,101,.55); } to { box-shadow: 0 0 0 18px rgba(255,134,101,0); } }

@media (min-width: 992px) { .strength-card { min-height: 249px; } }

/* Worktime: thêm mép mờ như thiết kế ------------------------------------------ */
.worktime { margin: 20px 0 0; }

/* Hệ thống cơ sở vật chất ---------------------------------------------------- */
.facility { padding: 55px 0 60px; }
.facility__grid {
  display: grid; grid-template-columns: 547px 573px; column-gap: 34px; justify-content: center;
  grid-template-areas: "media head" "media card";
  grid-template-rows: auto 1fr;
}
.facility__media { grid-area: media; text-align: center; }
.facility__media img { width: 100%; transition: transform .6s var(--ease); }
.facility__media:hover img { transform: scale(1.02) rotate(-.5deg); }
.facility__dots { display: flex; justify-content: center; gap: 5px; margin-top: -6px; }
.facility__dots span { width: 6px; height: 6px; border-radius: 24px; background: #D9D9D9; }
.facility__dots .on { width: 24px; background: #FF7300; }
.facility__head { grid-area: head; }
.facility__title { font: 700 32px/1.7 var(--ff-heading); color: #000; text-transform: uppercase; }
.facility__desc { margin: 24px 0 24px; font: 400 18px/1.67 var(--ff-body); color: #040915; }
.facility__card {
  grid-area: card; align-self: start;
  padding: 30px 32px; border-radius: 19px; background: #fff;
  box-shadow: 0 4px 15px rgba(0,0,0,.08);
  transition: transform var(--t), box-shadow var(--t);
}
.facility__card h3 { display: flex; align-items: center; gap: 15px; font: 400 24px/1.35 var(--ff-alt); color: #0E0E23; margin-bottom: 8px; }
.facility__card h3 i { color: var(--c-primary); font-size: 28px; transition: transform var(--t); }
.facility__card p { padding-left: 25px; font: 400 14px/1.55 var(--ff-body); color: #000; }
.facility__card:hover { transform: translateY(-4px); box-shadow: 0 14px 30px rgba(0,0,0,.12); }
.facility__card:hover h3 i { transform: translateX(6px); }

/* Phương pháp điều trị -------------------------------------------------------- */
.methods { position: relative; overflow: hidden; padding: 33px 0 14px; background: var(--bg-teal); color: #fff; }
.methods::before { /* họa tiết vòng tròn công nghệ */
  content: ""; position: absolute; inset: 0; pointer-events: none; opacity: .55;
  background:
    radial-gradient(circle at 8% 80%, transparent 0 120px, rgba(255,255,255,.08) 121px 123px, transparent 124px 190px, rgba(255,255,255,.06) 191px 193px, transparent 194px),
    radial-gradient(circle at 92% 30%, transparent 0 140px, rgba(255,255,255,.08) 141px 143px, transparent 144px 210px, rgba(255,255,255,.06) 211px 213px, transparent 214px);
}
.methods .container { position: relative; }
.methods__feats { display: flex; justify-content: center; gap: 80px; margin: 20px 0 22px; }
.method-feat { display: flex; flex-direction: column; align-items: center; gap: 10px; font: 500 20px/1.2 var(--ff-heading); }
.method-feat img { height: 50px; width: auto; transition: transform var(--t); }
.method-feat:hover img { transform: translateY(-4px) scale(1.08); }
@media (min-width: 992px) {
  .methods-swiper .swiper-wrapper { display: grid; grid-template-columns: repeat(4, 278px); justify-content: center; gap: 20px; }
}
.method-card {
  display: block; height: 100%; padding: 9px 9px 18px;
  background: #fff; border-radius: 15px; box-shadow: var(--shadow-hard);
  text-align: center; color: #000;
  transition: transform var(--t), box-shadow var(--t);
}
.method-card__img { display: block; aspect-ratio: 1; overflow: hidden; border-radius: 4px; }
.method-card__img img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s var(--ease); }
.method-card__text { display: block; margin-top: 18px; padding: 0 8px; font: 400 15px/1.45 var(--ff-body); }
.method-card:hover { color: var(--c-primary); transform: translateY(-8px); box-shadow: 0 18px 30px rgba(0,0,0,.25); }
.method-card:hover .method-card__img img { transform: scale(1.07); }

/* Môi trường y tế ---------------------------------------------------------------- */
.environment { padding: 38px 0 38px; }
.environment__desc { max-width: 669px; margin: 22px auto 27px; text-align: center; font: 400 22px/1.36 var(--ff-body); color: #040915; }
.environment__video { position: relative; display: block; max-width: 1064px; margin: 0 auto; border-radius: var(--radius); overflow: hidden; }
.environment__video img { width: 100%; transition: transform .8s var(--ease); }
.environment__video::after { content: ""; position: absolute; inset: 0; background: rgba(0,0,0,.08); transition: background var(--t); }
.environment__play {
  position: absolute; left: 50%; top: 50%; z-index: 1; transform: translate(-50%, -50%);
  width: 47px; height: 47px; border-radius: 50%; background: rgba(255,255,255,.92);
  display: grid; place-items: center; font-size: 26px; color: #9C9C9C;
  transition: transform var(--t), color var(--t);
}
.environment__play::before {
  content: ""; position: absolute; inset: -8px; border-radius: 50%;
  border: 2px solid rgba(255,255,255,.8); animation: pulseRing 2s ease-out infinite;
}
.environment__video:hover img { transform: scale(1.03); }
.environment__video:hover::after { background: rgba(0,0,0,.2); }
.environment__video:hover .environment__play { transform: translate(-50%, -50%) scale(1.15); color: var(--c-accent); }
.environment__more { margin-top: 27px; font: 400 16px var(--ff-body); padding: 15px 30px; }

/* RESPONSIVE ------------------------------------------------------------------------ */
@media (max-width: 1399.98px) {
  .strengths__grid { --bs-gutter-x: 30px; --bs-gutter-y: 30px; }
  .facility__grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 1199.98px) {
  .methods-swiper .swiper-wrapper { grid-template-columns: repeat(4, 1fr) !important; }
  .methods__feats { gap: 40px; }
  .strength-card { padding: 25px 20px; }
  .strength-card__title { font-size: 21px; }
}
@media (max-width: 991.98px) {
  .strengths { padding: 18px 0 30px; }
  .strengths__title { font-size: 48px; }
  .strengths__sub { font-size: 15px; margin: 6px 0 22px; padding: 0 20px; }
  .strengths__grid { --bs-gutter-y: 26px; }
  .strength-card { padding: 22px 20px 24px; }
  .strength-card__title { font-size: 21px; margin-top: 18px; }
  .strength-card__desc { font-size: 12px; }

  .worktime { margin: 0; }

  .facility { padding: 30px 0 34px; }
  .facility__grid { grid-template-columns: 1fr; grid-template-areas: "head" "media" "card"; row-gap: 20px; }
  .facility__head { text-align: center; }
  .facility__title { font-size: 21px; }
  .facility__desc { font-size: 14px; margin: 12px 0 0; }
  .facility__card { padding: 22px 20px; }
  .facility__card h3 { font-size: 18px; gap: 10px; }
  .facility__card p { font-size: 13px; padding-left: 30px; }

  .methods { padding: 26px 0 24px; }
  .methods .sec-title { font-size: 22px; font-weight: 500; }
  .methods .sec-title::after { display: none; }
  .methods__feats { display: grid; grid-template-columns: 1fr 1fr; gap: 26px 10px; margin: 26px 0 30px; }
  .method-feat { font-size: 16px; font-weight: 400; }
  .methods-swiper { overflow: hidden; margin: 0 -12px; padding: 0 12px 6px; }
  .method-card__text { font-size: 13px; }

  .environment { padding: 30px 0; }
  .environment .sec-title { font-size: 24px; }
  .environment .sec-title::after { margin-top: 10px; }
  .environment__desc { font-size: 18px; margin: 14px auto 18px; }
  .environment__more { margin-top: 14px; padding: 8px 18px; font-size: 13px; }
}