/* ==========================================================================
   SGCo 2026 — Trang chủ (9 section bám sát bản thiết kế gốc)
   Nạp sau main.css + templates.css
   ========================================================================== */

/* ---------- TYPO DÙNG CHUNG TRANG CHỦ ---------- */
.eyebrow-plain{
  display:block;font-size:11.5px;font-weight:700;letter-spacing:.2em;
  text-transform:uppercase;color:var(--blue-600);
}
.h-display{
  margin-top:12px;font-size:clamp(28px,3.4vw,42px);font-weight:500;line-height:1.2;
  color:#0A1E2C;letter-spacing:-.01em;text-wrap:pretty;
}
.head-row{display:flex;flex-wrap:wrap;gap:24px;align-items:flex-end;justify-content:space-between}
.head-row__text{max-width:60ch}
.head-row__lead{margin-top:14px;font-size:16.5px;line-height:1.8;color:#5A6E7C;max-width:52ch;text-wrap:pretty}
.link-arrow{
  display:inline-flex;align-items:center;gap:8px;font-size:14.5px;
  font-weight:600;color:var(--blue-700);white-space:nowrap;
}
.link-arrow:hover{color:var(--blue-600)}
.btn--block{width:100%;margin-top:4px}
.hp-field{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}

/* Statbox dùng ở INTRO + PARTNERS */
.statbox__num{display:block;font-size:32px;font-weight:600;color:var(--blue-600);line-height:1}
.statbox__label{
  display:block;margin-top:6px;font-size:12.5px;font-weight:600;
  letter-spacing:.06em;text-transform:uppercase;color:#7C8FA0;
}
.statbox--sm .statbox__num{font-size:27px;font-weight:800}
.statbox--sm .statbox__label{margin-top:5px;letter-spacing:.05em}

/* ---------- ②  INTRO / ABOUT ---------- */
.intro__grid{display:grid;grid-template-columns:1.12fr .88fr;gap:60px;align-items:center}
.intro__video{
  border-radius:var(--radius-lg);overflow:hidden;aspect-ratio:16/9;background:#0A2540;
  border:1px solid #DCE6EE;box-shadow:0 34px 70px -34px rgba(10,40,70,.44);
}
.intro__video iframe{width:100%;height:100%;border:0;display:block}
.intro__caption{
  margin-top:18px;display:flex;gap:11px;align-items:center;
  font-size:13.5px;color:#7C8FA0;font-weight:500;
}
.intro__caption .sgco-icon{color:var(--blue-600);flex-shrink:0}
.intro__desc{margin-top:18px;font-size:16.5px;line-height:1.85;color:#5A6E7C;max-width:58ch;text-wrap:pretty}
.intro__stats{
  margin-top:30px;display:grid;grid-template-columns:repeat(4,auto);
  gap:18px 44px;justify-content:start;
}
.intro__cta{margin-top:32px;font-size:15.5px}

/* ---------- ③  SERVICES (card ảnh, hover mở mô tả) ---------- */
.services__grid{margin-top:44px;display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.svc{
  position:relative;display:block;height:470px;border-radius:var(--radius-lg);
  overflow:hidden;background:#0A2540;color:#fff;
  box-shadow:0 20px 46px -30px rgba(10,40,70,.6);
  transition:transform var(--dur-slow) var(--ease-out),box-shadow var(--dur-slow) ease;
}
.svc:hover{transform:translateY(-8px);box-shadow:0 40px 80px -34px rgba(10,40,70,.62);color:#fff}
.svc__img{
  position:absolute;inset:0;background-size:cover;background-position:center;
  filter:saturate(.85);transition:transform .8s var(--ease-out),filter .5s ease;
}
.svc:hover .svc__img{transform:scale(1.07);filter:saturate(1.05)}
.svc__shade{
  position:absolute;inset:0;
  background:linear-gradient(188deg,rgba(6,26,48,.52) 0%,rgba(6,26,48,.20) 30%,rgba(6,26,48,.66) 66%,rgba(5,20,38,.92) 100%);
}
.svc__num{
  position:absolute;top:20px;left:22px;font-size:12px;font-weight:800;
  letter-spacing:.18em;color:#fff;text-shadow:0 1px 8px rgba(5,20,38,.7);
}
.svc__icon{
  position:absolute;top:16px;right:18px;width:42px;height:42px;border-radius:12px;
  background:rgba(255,255,255,.16);backdrop-filter:blur(6px);border:1px solid rgba(255,255,255,.28);
  display:flex;align-items:center;justify-content:center;color:#fff;
}
.svc__content{position:absolute;left:22px;right:22px;bottom:22px;display:block}
.svc__title{display:block;font-size:19px;font-weight:700;color:#fff;line-height:1.32;text-wrap:pretty}
.svc__body{
  display:block;max-height:0;opacity:0;overflow:hidden;
  transition:max-height var(--dur-slow) var(--ease-out),opacity var(--dur-slow) ease;
}
.svc:hover .svc__body{max-height:190px;opacity:1}
.svc__desc{display:block;margin-top:11px;font-size:14px;line-height:1.7;color:#D7E7F3}
.svc__more{
  margin-top:14px;display:inline-flex;align-items:center;gap:7px;
  font-size:13.5px;font-weight:700;color:#8FD3FF;
}
.svc__line{
  display:block;margin-top:16px;height:2px;width:34px;background:var(--blue-600);
  border-radius:var(--radius-pill);transition:width var(--dur-slow) var(--ease-out);
}
.svc:hover .svc__line{width:100%}
@media (hover:none){
  .svc__body{max-height:190px;opacity:1}
  .svc__line{width:100%}
}

/* ---------- ④  FIELD PHOTOS (băng ảnh chạy) ---------- */
/* Lưu ý: KHÔNG đặt tên class là `.field` — trùng với `.field` của ô nhập
   trong form liên hệ (main.css §14) và sẽ ghi đè margin bằng padding 96px. */
.fieldwork{padding:96px 0;background:var(--bg)}
.fieldwork__head{padding-bottom:30px}
.fieldwork__rail{
  position:relative;overflow:hidden;
  mask-image:linear-gradient(90deg,transparent,#000 5%,#000 95%,transparent);
  -webkit-mask-image:linear-gradient(90deg,transparent,#000 5%,#000 95%,transparent);
}
.fieldwork__track{
  display:flex;gap:16px;width:max-content;padding:0 8px;
  animation:railLeft 64s linear infinite;
}
.fieldwork__rail:hover .fieldwork__track{animation-play-state:paused}
.fieldwork__item{
  position:relative;flex:0 0 auto;width:236px;height:330px;border-radius:16px;
  overflow:hidden;background:#DCE9F3;border:1px solid #DCE6EE;
}
.fieldwork__item img{width:100%;height:100%;object-fit:cover;display:block}

@keyframes railLeft{from{transform:translateX(0)}to{transform:translateX(-50%)}}
@keyframes railRight{from{transform:translateX(-50%)}to{transform:translateX(0)}}

/* ---------- ⑤  PROJECTS ---------- */
.projects{
  background:linear-gradient(172deg,#FFFFFF 0%,#EAF6FF 46%,#F8FCFF 100%);
  border-top:1px solid var(--border);border-bottom:1px solid var(--border);
  padding:100px 0;
}
.projects__grid{margin-top:42px;display:grid;grid-template-columns:1.32fr 1fr;gap:22px}
.projects__side{display:flex;flex-direction:column;gap:22px}
.prj{
  position:relative;display:block;border-radius:var(--radius-lg);overflow:hidden;
  background:#0A2540;color:#fff;box-shadow:0 20px 46px -30px rgba(10,40,70,.6);
  transition:transform var(--dur-slow) var(--ease-out),box-shadow var(--dur-slow) ease;
}
.prj:hover{transform:translateY(-6px);box-shadow:0 40px 80px -34px rgba(10,40,70,.6);color:#fff}
.prj--feat{min-height:430px}
.prj--small{flex:1;min-height:204px}
.prj__img{position:absolute;inset:0;background-size:cover;background-position:center;transition:transform .9s var(--ease-out)}
.prj:hover .prj__img{transform:scale(1.06)}
.prj--feat .prj__shade{
  position:absolute;inset:0;
  background:linear-gradient(190deg,rgba(6,26,48,.30) 0%,rgba(6,26,48,.34) 42%,rgba(5,20,38,.92) 100%);
}
.prj--small .prj__shade{
  position:absolute;inset:0;
  background:linear-gradient(190deg,rgba(6,26,48,.26) 0%,rgba(5,20,38,.88) 100%);
}
.prj--feat .prj__content{position:absolute;left:30px;right:30px;bottom:28px;display:block}
.prj--small .prj__content{position:absolute;left:24px;right:24px;bottom:22px;display:block}
.prj__tag{
  display:block;font-size:11px;font-weight:700;letter-spacing:.14em;
  text-transform:uppercase;color:#8FD3FF;
}
.prj__tag--solid{
  display:inline-flex;align-items:center;gap:8px;color:#0A2540;background:#8FD3FF;
  padding:7px 13px;border-radius:var(--radius-pill);
}
.prj--feat .prj__title{
  display:block;margin-top:15px;font-size:clamp(22px,2.4vw,29px);font-weight:700;
  color:#fff;line-height:1.28;max-width:26ch;text-wrap:pretty;
}
.prj--small .prj__title{
  display:block;margin-top:8px;font-size:18px;font-weight:700;color:#fff;
  line-height:1.35;text-wrap:pretty;
}
.prj__desc{display:block;margin-top:12px;font-size:15px;line-height:1.75;color:#D7E7F3;max-width:52ch}
.prj__meta{display:block;margin-top:8px;font-size:13.5px;color:#BFD6E6;font-weight:500}
.prj__stats{margin-top:20px;display:flex;flex-wrap:wrap;gap:12px 30px}
.prj__stat{display:flex;flex-direction:column;gap:3px}
.prj__stat b{font-size:19px;font-weight:800;color:#fff;line-height:1}
.prj__stat span{font-size:11.5px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:#9FC3DA}

/* ---------- ⑥  PROCESS ---------- */
.process__grid{margin-top:48px;display:grid;grid-template-columns:repeat(4,1fr);gap:26px}
.step{position:relative;padding-top:26px;border-top:2px solid #E1EBF3}
.step::before{display:none}
.step__num{
  position:absolute;top:-15px;left:0;width:30px;height:30px;border-radius:var(--radius-pill);
  background:var(--blue-600);color:#fff;font-size:13px;font-weight:700;
  display:flex;align-items:center;justify-content:center;box-shadow:none;
}
.step__title{display:block;font-size:17px;font-weight:700;color:#0A1E2C;margin-top:0}
.step__desc{margin-top:10px;font-size:14.5px;line-height:1.7;color:#5A6E7C}

/* ---------- ⑦  NEWS ---------- */
.news{
  background:linear-gradient(180deg,#F7FCFF 0%,#E6F4FE 100%);
  border-top:1px solid var(--border);padding:100px 0;
}
.news__grid{margin-top:36px;display:grid;grid-template-columns:1.24fr .76fr;gap:20px;align-items:stretch}
.nfeat{
  position:relative;display:block;border-radius:var(--radius-lg);overflow:hidden;
  min-height:440px;background:#0A2540;color:#fff;
  box-shadow:0 20px 46px -30px rgba(10,40,70,.6);
  transition:transform var(--dur-slow) var(--ease-out),box-shadow var(--dur-slow) ease;
}
.nfeat:hover{transform:translateY(-6px);box-shadow:0 40px 80px -34px rgba(10,40,70,.6);color:#fff}
.nfeat__img{position:absolute;inset:0;background-size:cover;background-position:center;transition:transform .9s var(--ease-out)}
.nfeat:hover .nfeat__img{transform:scale(1.06)}
.nfeat__shade{position:absolute;inset:0;background:linear-gradient(190deg,rgba(6,26,48,.08) 30%,rgba(6,26,48,.86) 100%)}
.nfeat__content{position:absolute;left:32px;right:32px;bottom:32px;display:block}
.nfeat__meta{
  display:flex;flex-wrap:wrap;gap:10px 16px;align-items:center;
  font-size:12.5px;color:#8FD3FF;font-weight:600;
}
.nfeat__title{display:block;margin-top:14px;font-size:clamp(20px,2.2vw,26px);font-weight:700;color:#fff;line-height:1.3}
.nfeat__desc{display:block;margin-top:12px;font-size:14.5px;line-height:1.7;color:rgba(255,255,255,.85)}
.news__list{display:flex;flex-direction:column;gap:var(--sp-4)}
.nrow{
  display:grid;grid-template-columns:150px 1fr;gap:18px;background:var(--surface);
  border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;flex:1;
  transition:border-color var(--dur),box-shadow var(--dur-slow),transform var(--dur-slow) var(--ease-out);
}
.nrow:hover{border-color:var(--border-strong);box-shadow:0 26px 54px -28px rgba(10,40,70,.4);transform:translateY(-3px)}
.nrow__imgwrap{position:relative;overflow:hidden;min-height:120px}
.nrow__img{position:absolute;inset:0;background-size:cover;background-position:center;transition:transform .8s var(--ease-out)}
.nrow:hover .nrow__img{transform:scale(1.06)}
.nrow__content{padding:18px 20px 18px 0;display:flex;flex-direction:column;justify-content:center}
.nrow__meta{font-size:12px;color:var(--ink-400);font-weight:600;display:flex;gap:12px;flex-wrap:wrap}
.nrow__cat{color:var(--blue-600)}
.nrow__title{display:block;margin-top:8px;font-size:16px;font-weight:700;color:var(--ink-900);line-height:1.4;transition:color var(--dur-fast)}
.nrow:hover .nrow__title{color:var(--blue-600)}

/* ---------- ⑧  PARTNERS ---------- */
.partners__grid{display:grid;grid-template-columns:.78fr 1.22fr;gap:60px;align-items:center}
.partners__desc{margin-top:16px;font-size:16.5px;line-height:1.85;color:#5A6E7C;max-width:44ch;text-wrap:pretty}
.partners__stats{
  margin-top:28px;display:grid;grid-template-columns:repeat(2,auto);
  gap:26px 44px;justify-content:start;
}
.partners__rails{display:flex;flex-direction:column;gap:14px;overflow:hidden}
.logo-rail{
  position:relative;overflow:hidden;
  mask-image:linear-gradient(90deg,transparent,#000 7%,#000 93%,transparent);
  -webkit-mask-image:linear-gradient(90deg,transparent,#000 7%,#000 93%,transparent);
}
.logo-track{display:flex;gap:14px;width:max-content}
.logo-track--left{animation:railLeft 46s linear infinite}
.logo-track--right{animation:railRight 52s linear infinite}
.logo-rail:hover .logo-track{animation-play-state:paused}
.logo-cell{
  flex:0 0 auto;width:186px;height:104px;background:#fff;border:1px solid var(--border);
  border-radius:14px;overflow:hidden;display:flex;align-items:center;justify-content:center;
  padding:12px;text-align:center;
}
.logo-cell__name{
  font-size:13px;font-weight:700;line-height:1.35;color:#54697A;
  letter-spacing:.01em;
}
/* Logo đối tác dạng ảnh — để lọt trong ô, không cắt xén. */
.logo-cell__img{
  max-width:100%;max-height:100%;width:auto;height:auto;object-fit:contain;
  /* Logo nhiều màu trên nền trắng: giảm nhẹ độ bão hoà cho đồng bộ,
     trở lại màu gốc khi rê chuột. */
  filter:saturate(.9);transition:filter var(--dur),transform var(--dur);
}
.logo-cell:hover .logo-cell__img{filter:none;transform:scale(1.04)}

/* ---------- ⑨  CONTACT ---------- */
.contact{
  background:linear-gradient(160deg,#DCF0FD 0%,#F1F9FF 55%,#FFFFFF 100%);
  position:relative;overflow:hidden;border-top:1px solid #DCEAF4;padding:96px 0;
  color:var(--ink-700);
}
.contact::before{
  content:"";position:absolute;top:-180px;right:-80px;width:520px;height:520px;
  border-radius:var(--radius-pill);
  background:radial-gradient(circle,rgba(13,152,229,.14),transparent 66%);
}
.contact__grid{
  position:relative;display:grid;grid-template-columns:1fr 1fr;
  gap:72px;align-items:start;
}
.contact__desc{margin-top:18px;font-size:16px;line-height:1.8;color:#54697A;max-width:52ch}
.contact__cards{margin-top:34px;display:flex;flex-direction:column;gap:14px}
.contact-card{
  display:flex;gap:14px;align-items:center;color:var(--ink-900);font-size:16px;
  background:#fff;border:1px solid #E2EDF5;border-radius:14px;padding:16px 18px;
  transition:border-color var(--dur),transform var(--dur) var(--ease-out);
}
.contact-card:hover{border-color:var(--border-strong);transform:translateY(-2px);color:var(--ink-900)}
.contact-card__icon{
  width:44px;height:44px;border-radius:12px;background:#EAF6FD;flex-shrink:0;
  display:flex;align-items:center;justify-content:center;color:var(--blue-600);
}
.contact-card__text b{display:block;font-weight:700}
.contact-card__text span{font-size:13.5px;color:#7C8FA0}
.contact-form{
  background:#fff;border:1px solid #E2EDF5;border-radius:var(--radius-lg);padding:34px;
  box-shadow:0 34px 70px -30px rgba(10,40,70,.34);
}
.contact-form label{font-size:13px;font-weight:600;color:#3A4A58}
.contact-form input,.contact-form select,.contact-form textarea{
  border:1px solid #DDE7EF;border-radius:10px;padding:13px 14px;
  font-size:14.5px;color:var(--ink-900);
}

/* ---------- RESPONSIVE ---------- */
@media (max-width:1150px){
  .intro__grid{grid-template-columns:1fr;gap:44px}
  .services__grid{grid-template-columns:repeat(2,1fr)}
  .projects__grid{grid-template-columns:1fr}
  .process__grid{grid-template-columns:repeat(2,1fr);row-gap:40px}
  .news__grid{grid-template-columns:1fr}
  .partners__grid{grid-template-columns:1fr;gap:44px}
  .contact__grid{grid-template-columns:1fr;gap:44px}
  .fieldwork,.projects,.news{padding:64px 0}
  .contact{padding:64px 0}
}
@media (max-width:768px){
  .intro__stats{grid-template-columns:repeat(2,1fr);gap:22px 30px}
  .partners__stats{grid-template-columns:repeat(2,1fr)}
  .svc{height:400px}
  .nfeat{min-height:340px}
  .nfeat__content{left:22px;right:22px;bottom:22px}
  .prj--feat{min-height:360px}
  .prj--feat .prj__content{left:22px;right:22px;bottom:22px}
  .contact-form{padding:24px}
  .fieldwork__item{width:190px;height:266px}
}
@media (max-width:640px){
  .services__grid{grid-template-columns:1fr}
  .process__grid{grid-template-columns:1fr}
  .nrow{grid-template-columns:1fr}
  .nrow__imgwrap{min-height:170px}
  .nrow__content{padding:18px 20px}
  .head-row{align-items:flex-start}
}
@media (prefers-reduced-motion:reduce){
  .fieldwork__track,.logo-track{animation:none}
}