/* ================================================================
   MICROBOX — STYLESHEET
   ----------------------------------------------------------------
   File này được tách ra từ khối <style> vốn nằm trực tiếp trong
   index.html (tới bản v5.4). Từ v6.0, site được "standalone hoá":
   không còn phụ thuộc bất kỳ link/CDN nào ra ngoài (kể cả Google
   Fonts) — mọi CSS, mọi asset đều nằm trong repo này.
   Toàn bộ nội dung + comment gốc bên dưới được giữ NGUYÊN VẸN,
   chỉ thêm khối @font-face self-host font ở đầu file.
   ================================================================ */

/* ----------------------------------------------------------------
   FONT "Be Vietnam Pro" — self-host (thay cho Google Fonts CDN)
   ----------------------------------------------------------------
   Trước v6.0: nạp qua <link> tới fonts.googleapis.com/fonts.gstatic.com.
   Từ v6.0: 6 file .ttf (300/400/500/600/700/800) tải sẵn về
   fonts/be-vietnam-pro-<weight>.ttf, khai báo @font-face ngay tại đây
   để site chạy 100% offline, không gọi mạng ngoài.
   `font-display:swap` giữ nguyên hành vi cũ (hiện chữ ngay bằng font
   hệ thống trong lúc chờ tải font thật, tránh FOIT).
   ----------------------------------------------------------------- */
@font-face{
  font-family:'Be Vietnam Pro';
  font-style:normal;
  font-weight:300;
  font-display:swap;
  src:url('../fonts/be-vietnam-pro-300.ttf') format('truetype');
}
@font-face{
  font-family:'Be Vietnam Pro';
  font-style:normal;
  font-weight:400;
  font-display:swap;
  src:url('../fonts/be-vietnam-pro-400.ttf') format('truetype');
}
@font-face{
  font-family:'Be Vietnam Pro';
  font-style:normal;
  font-weight:500;
  font-display:swap;
  src:url('../fonts/be-vietnam-pro-500.ttf') format('truetype');
}
@font-face{
  font-family:'Be Vietnam Pro';
  font-style:normal;
  font-weight:600;
  font-display:swap;
  src:url('../fonts/be-vietnam-pro-600.ttf') format('truetype');
}
@font-face{
  font-family:'Be Vietnam Pro';
  font-style:normal;
  font-weight:700;
  font-display:swap;
  src:url('../fonts/be-vietnam-pro-700.ttf') format('truetype');
}
@font-face{
  font-family:'Be Vietnam Pro';
  font-style:normal;
  font-weight:800;
  font-display:swap;
  src:url('../fonts/be-vietnam-pro-800.ttf') format('truetype');
}

/* ============================================================
   MICROBOX — BẢNG MÀU
   Lấy từ chú robot Microbox: thân xanh lá, nền đêm xanh thẫm.
   ============================================================ */
:root{
  --ink:        #05140E;
  --forest:     #0C2418;
  --moss:       #1B4332;
  --green:      #23A45C;
  --green-lit:  #34D97C;
  --lime:       #B8F27A;
  --mint:       #EAF7F0;
  --paper:      #FBFDFB;
  --slate:      #5C6F66;
  --slate-lt:   #9DB3A8;
  --line:       #DDE8E1;
  --blue:       #2799F0;   /* màu thương hiệu Clorage */

  --r-sm: 10px; --r: 18px; --r-lg: 28px;
  --r-btn: 12px;   /* nút bấm — vuông hơn để đọc như hành động, không phải nhãn */
  --shadow: 0 1px 2px rgba(5,20,14,.04), 0 12px 32px -12px rgba(5,20,14,.14);
  --shadow-lg: 0 2px 4px rgba(5,20,14,.05), 0 32px 64px -24px rgba(5,20,14,.28);
  --max: 1180px;
  --pad: clamp(20px, 5vw, 40px);
  --ease: cubic-bezier(.22,1,.36,1);
}

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  font-family:'Be Vietnam Pro',-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;
  background:var(--paper); color:var(--ink);
  line-height:1.65; font-size:16px; overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
body.locked{overflow:hidden}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
.wrap{max-width:var(--max);margin-inline:auto;padding-inline:var(--pad)}

h1,h2,h3{line-height:1.12;letter-spacing:-.025em;font-weight:700}
h1{font-size:clamp(2.2rem,6.6vw,4.2rem);font-weight:800;letter-spacing:-.04em}
h2{font-size:clamp(1.7rem,4.2vw,2.9rem)}
h3{font-size:clamp(1.08rem,2.1vw,1.35rem);letter-spacing:-.015em}
.lede{font-size:clamp(1rem,1.8vw,1.2rem);color:var(--slate);font-weight:300}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:.73rem;font-weight:600;letter-spacing:.16em;text-transform:uppercase;
  color:var(--green);
}
.eyebrow::before{content:"";width:22px;height:1.5px;background:currentColor;opacity:.5}
section{padding-block:clamp(60px,9vw,120px)}
section[id],header[id]{scroll-margin-top:86px}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:14px 26px;border-radius:var(--r-btn);font-weight:600;font-size:.95rem;
  border:1.5px solid transparent;cursor:pointer;
  transition:transform .25s var(--ease), box-shadow .25s var(--ease), background .2s, color .2s, border-color .2s;
  white-space:nowrap;
}
.btn:hover{transform:translateY(-2px)}
.btn-primary{background:var(--green);color:#fff;box-shadow:0 8px 24px -8px rgba(35,164,92,.7)}
.btn-primary:hover{background:var(--green-lit);box-shadow:0 14px 32px -8px rgba(52,217,124,.6)}
.btn-ghost{border-color:rgba(255,255,255,.28);color:#fff}
.btn-ghost:hover{border-color:var(--lime);color:var(--lime)}
.btn-out{border-color:var(--line);color:var(--ink);background:#fff}
.btn-out:hover{border-color:var(--green);color:var(--green)}

/* ============================ NAV ============================ */
.nav{
  position:fixed;inset:0 0 auto 0;z-index:100;
  background:rgba(251,253,251,.86);backdrop-filter:blur(16px) saturate(1.6);
  border-bottom:1px solid transparent;
  transform:translateY(0);will-change:transform;
  transition:transform .34s var(--ease), border-color .3s, background .3s;
}
.nav.scrolled{border-bottom-color:var(--line)}
.nav.hide{transform:translateY(-100%)}
.nav-in{display:flex;align-items:center;justify-content:space-between;gap:16px;height:68px}
/* Logo dựng từ asset trong bộ nhận diện.
   CSS mask: đổi màu bằng currentColor, thay logo chỉ cần thay file SVG.
   Yêu cầu chạy qua HTTP — xem nginx/microbox.conf. */
.logo{
  display:block;width:clamp(132px,17vw,158px);aspect-ratio:226.88/44.37;
  background:currentColor;color:var(--ink);
  -webkit-mask:url(../logo/microbox-logo-horizontal-mono-black.svg) center/contain no-repeat;
          mask:url(../logo/microbox-logo-horizontal-mono-black.svg) center/contain no-repeat;
  flex:0 0 auto;
}
.logo.on-dark{color:#fff}
.logo-icon{
  display:block;width:30px;aspect-ratio:50.62/44.38;
  background:currentColor;
  -webkit-mask:url(../logo/microbox-icon-mono-black.svg) center/contain no-repeat;
          mask:url(../logo/microbox-icon-mono-black.svg) center/contain no-repeat;
}
/* Wrapper cho menu điều hướng chính
   - Ẩn trên mobile (display:none), hiện lại trên tablet+ qua media query
   - Tương thích cuộn ngang để xử lý khi liên kết vượt quá chiều rộng
   - Tạo gradient mờ cạnh phải khi menu có nội dung tràn (xem .nav-wrap::after) */
.nav-wrap{display:none;position:relative;min-width:0;flex:1 1 auto}
.nav-wrap{display:none;position:relative;min-width:0;flex:1 1 auto}
.nav-links{
  display:flex;gap:26px;font-size:.92rem;font-weight:500;
  overflow-x:auto;scroll-behavior:smooth;
  scrollbar-width:none;-ms-overflow-style:none;padding:6px 0;
}
.nav-links::-webkit-scrollbar{display:none}
.nav-links a{
  position:relative;color:var(--slate);transition:color .2s;
  white-space:nowrap;padding-bottom:6px;
}
.nav-links a:hover{color:var(--ink)}
.nav-links a.active{color:var(--ink);font-weight:600}
.nav-links a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;border-radius:2px;
  background:var(--green);transform:scaleX(0);transform-origin:left;
  transition:transform .3s var(--ease);
}
.nav-links a:hover::after,.nav-links a.active::after{transform:scaleX(1)}
.nav-wrap::after{
  content:"";position:absolute;top:0;right:-2px;bottom:0;width:46px;pointer-events:none;
  background:linear-gradient(90deg,rgba(251,253,251,0),rgba(251,253,251,.96));
  opacity:0;transition:opacity .25s var(--ease);
}
.nav-wrap.more::after{opacity:1}
.nav-cta{display:none}
.burger{
  width:42px;height:42px;border-radius:11px;border:1px solid var(--line);
  background:#fff;display:grid;place-items:center;gap:4px;cursor:pointer;padding:11px;
}
.burger span{display:block;width:100%;height:2px;background:var(--ink);border-radius:2px;transition:.3s var(--ease)}
.burger[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.burger[aria-expanded="true"] span:nth-child(2){opacity:0}
.burger[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
.mobile-menu{
  position:fixed;inset:68px 0 auto 0;z-index:99;background:var(--paper);
  border-bottom:1px solid var(--line);padding:12px var(--pad) 26px;
  display:grid;gap:2px;
  transform:translateY(-12px);opacity:0;pointer-events:none;transition:.28s var(--ease);
}
.mobile-menu.open{transform:none;opacity:1;pointer-events:auto}
.mobile-menu a{padding:14px 4px;font-size:1.06rem;font-weight:500;border-bottom:1px solid var(--line)}
.mobile-menu .btn{margin-top:16px}
@media(min-width:700px){
  .nav-wrap{display:block}
  .burger{display:none}
  .mobile-menu{display:none}
}
@media(min-width:1000px){
  .nav-cta{display:flex}
  .nav-in{height:80px}
  .nav-wrap{flex:0 1 auto}
}

/* ============================ HERO ============================ */
.hero{
  position:relative;min-height:100svh;display:grid;align-items:center;
  background:var(--ink);color:#fff;overflow:hidden;padding-block:116px 68px;
}
.hero-bg{position:absolute;inset:0;z-index:0}
.hero-bg img{width:100%;height:100%;object-fit:cover;opacity:.75}
.hero-bg::after{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(120% 90% at 15% 15%, rgba(35,164,92,.10), transparent 55%),
    linear-gradient(180deg, rgba(5,20,14,.32) 0%, rgba(5,20,14,.52) 45%, rgba(5,20,14,.78) 78%, var(--ink) 100%);
}
.hero-in{position:relative;z-index:1;max-width:840px}
.hero .eyebrow{color:var(--lime);text-shadow:0 2px 14px rgba(5,20,14,.55)}
.hero h1{margin:20px 0 22px;color:#fff;text-shadow:0 4px 22px rgba(5,20,14,.55)}
.hero h1 em{font-style:normal;color:var(--green-lit)}
.hero .lede{color:#C8D8CE;max-width:610px;text-shadow:0 2px 16px rgba(5,20,14,.6)}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:32px}
/* ---------- dải hệ sinh thái dưới hero ---------- */
.eco{
  position:relative;
  margin-top:clamp(38px,5vw,58px);
  padding:clamp(22px,3vw,26px) clamp(20px,3vw,26px) clamp(22px,3vw,26px);
  display:grid;gap:16px;
}
.eco::before{
  content:"";position:absolute;inset:0;z-index:0;pointer-events:none;
  background:linear-gradient(180deg, rgba(5,20,14,.34) 0%, rgba(5,20,14,.6) 100%);
  border-radius:var(--r-lg);
}
.eco-lead{position:relative;z-index:1}
.eco-lead b{display:block;color:#fff;font-size:1rem;font-weight:700;letter-spacing:-.02em;line-height:1.3}
.eco-lead small{display:block;color:var(--slate-lt);font-size:.82rem;font-weight:300;margin-top:6px;max-width:540px}
.eco-grid{position:relative;z-index:1;display:flex;flex-wrap:wrap;gap:8px}
.eco-item{
  display:inline-flex;align-items:center;gap:7px;padding:7px 15px;
  border:1px solid rgba(255,255,255,.16);border-radius:100px;
  font-size:.78rem;font-weight:500;color:#CFE0D6;
  transition:border-color .25s var(--ease), background .25s var(--ease), color .25s var(--ease);
}
.eco-item:hover{border-color:rgba(52,217,124,.5);color:#fff}
.eco-item.on{
  background:var(--green);border-color:var(--green);color:#fff;font-weight:600;
}
.eco-item.on::before{
  content:"";width:6px;height:6px;border-radius:50%;background:#fff;flex:0 0 auto;
}
/* nhóm "Giáo dục" — viền đứt để báo đây là định hướng, khác các nhóm không gian vật lý */
.eco-item.vision{border-style:dashed;border-color:rgba(52,217,124,.55)}
.eco-item.vision:hover{border-color:rgba(52,217,124,.85);color:#fff}

.lede .ar{font-style:normal;color:var(--green-lit);padding:0 3px}
.lede .hl{color:#fff;font-weight:600}

.places{display:grid;gap:14px;margin-top:16px}
@media(min-width:880px){.places{grid-template-columns:repeat(3,1fr)}}
.place{border:1px solid rgba(255,255,255,.14);border-radius:var(--r);padding:24px 22px;background:rgba(255,255,255,.03)}
.place.here{border-color:rgba(52,217,124,.36);background:linear-gradient(150deg,rgba(35,164,92,.15),rgba(35,164,92,.03))}
.place-h{
  display:flex;align-items:center;gap:10px;margin-bottom:12px;
  min-height:42px;                 /* ba ô cùng chiều cao hàng đầu -> thẳng hàng */
}
.place-h svg{width:22px;height:22px;color:var(--green-lit);stroke-width:1.7;flex:0 0 auto}
.place-h b{color:var(--lime);font-size:.72rem;letter-spacing:.14em;text-transform:uppercase}
.place h3{color:#fff;font-size:1.05rem;margin-bottom:8px}
.place p{font-size:.87rem;color:var(--slate-lt);font-weight:300}
.place em{display:block;font-style:normal;font-size:.79rem;color:rgba(157,179,168,.8);margin-top:10px;padding-top:10px;border-top:1px solid rgba(255,255,255,.1)}
.place.here em{color:#B8F27A}
.place-bot{
  height:40px;width:auto;margin-left:auto;flex:0 0 auto;
  filter:drop-shadow(0 8px 18px rgba(0,0,0,.5));
}
@media(min-width:880px){.place-bot{height:46px}}

/* ============================ CHUNG ============================ */
.head{max-width:680px;margin-bottom:clamp(34px,5vw,58px)}
.head h2{margin:16px 0 16px}
.grid{display:grid;gap:18px}
@media(min-width:700px){.g2{grid-template-columns:repeat(2,1fr)}}
@media(min-width:980px){.g3{grid-template-columns:repeat(3,1fr)}}

.dark{background:var(--ink);color:#fff}
.dark .lede{color:var(--slate-lt)}
.dark .head h2{color:#fff}

/* ---------- định vị ---------- */
.pos{display:grid;gap:1px;background:var(--line);border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line)}
@media(min-width:880px){.pos{grid-template-columns:repeat(4,1fr)}}
.pos>div{background:#fff;padding:clamp(24px,3.2vw,32px)}
.pos b{display:block;font-size:.72rem;letter-spacing:.14em;text-transform:uppercase;color:var(--green);margin-bottom:12px}
.pos p{font-size:.94rem;color:var(--slate);font-weight:300}
.pos strong{color:var(--ink);font-weight:600}

/* ---------- sản phẩm ---------- */
.prod{
  border-radius:var(--r-lg);overflow:hidden;background:#fff;
  border:1px solid var(--line);display:flex;flex-direction:column;
  transition:transform .35s var(--ease), box-shadow .35s var(--ease);
}
.prod:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.prod-top{padding:clamp(24px,3.2vw,32px);flex:1}
.layer-tag{
  display:block;font-size:.68rem;font-weight:700;letter-spacing:.12em;text-transform:uppercase;
  color:var(--slate);margin-bottom:9px;white-space:nowrap;
}
.next-up{
  display:flex;flex-wrap:wrap;align-items:center;gap:9px;margin-top:22px;
  font-size:.82rem;color:var(--slate);font-weight:300;
}
.next-up span{font-weight:600;color:var(--ink);margin-right:2px}
.next-up a{
  font-weight:500;padding:6px 13px;border-radius:100px;
  border:1px dashed var(--line);background:#fff;color:var(--slate);
  transition:border-color .22s var(--ease), color .22s var(--ease), background .22s var(--ease);
}
.next-up a:hover{border-color:var(--green);color:var(--green);background:var(--mint)}
.chip{
  display:inline-block;font-size:.68rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;
  padding:5px 11px;border-radius:100px;background:var(--mint);color:var(--moss);margin-bottom:15px;
  white-space:nowrap;              /* không bao giờ xuống dòng */
}
.chip.live{background:rgba(35,164,92,.14);color:var(--green)}
.chip.dev{background:#FFF3D6;color:#8A6A17}
.prod .sub{color:var(--slate);font-size:.93rem;font-weight:300;margin-top:8px}
.prod ul{list-style:none;margin-top:18px;display:grid;gap:11px}
.prod li{display:flex;gap:11px;font-size:.91rem;color:var(--slate);font-weight:300}
.prod li svg{width:16px;height:16px;flex:0 0 auto;margin-top:4px;color:var(--green)}
.prod li b{color:var(--ink);font-weight:600}
.prod-img{aspect-ratio:16/10;background:var(--mint);overflow:hidden}
.prod-img img{width:100%;height:100%;object-fit:cover}
.prod-img.contain img{object-fit:contain}
/* ảnh chụp màn hình dọc — hiện trọn, không cắt */
.prod-img.fit{display:grid;grid-template-rows:100%;place-items:center;padding:16px;background:linear-gradient(160deg,#F3FAF6,#DCEFE4)}
.prod-img.fit img{width:auto;height:100%;object-fit:contain;border-radius:9px;box-shadow:0 10px 28px -10px rgba(5,20,14,.4)}
.prod-img.duo{display:grid;grid-template-columns:1fr 1fr;grid-template-rows:100%;gap:10px;padding:16px;background:linear-gradient(160deg,#F3FAF6,#DCEFE4)}
.prod-img.duo img{width:100%;height:100%;object-fit:cover;border-radius:9px;box-shadow:0 8px 22px -10px rgba(5,20,14,.4)}

/* dải giai đoạn thi công */
.phases{display:grid;grid-template-columns:repeat(2,1fr);gap:10px;margin-top:22px}
@media(min-width:640px){.phases{grid-template-columns:repeat(3,1fr)}}
@media(min-width:1000px){.phases{grid-template-columns:repeat(6,1fr)}}
.phase{
  position:relative;border:none;padding:0;cursor:pointer;background:none;
  border-radius:var(--r-sm);overflow:hidden;aspect-ratio:4/3;
  transition:transform .3s var(--ease),box-shadow .3s var(--ease);
}
.phase img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease)}
.phase:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg)}
.phase:hover img{transform:scale(1.06)}
.phase span{
  position:absolute;inset:auto 0 0 0;padding:22px 10px 9px;
  background:linear-gradient(180deg,transparent,rgba(5,20,14,.9));
  color:#fff;font-size:.73rem;font-weight:600;line-height:1.25;text-align:left;
}
.phase b{display:block;color:var(--lime);font-size:.64rem;letter-spacing:.1em;margin-bottom:2px}

/* hai màn hình giám sát */
.live-case{display:grid;gap:18px;align-items:center;margin-top:clamp(40px,6vw,64px)}
@media(min-width:820px){.live-case{grid-template-columns:1fr 1fr;gap:40px}}
.live-shots{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.shot{
  position:relative;container-type:inline-size;
  margin:0;background:#fff;border:1px solid var(--line);border-radius:16px;overflow:hidden;
  box-shadow:0 18px 40px -22px rgba(5,20,14,.4);
  transition:transform .3s var(--ease),box-shadow .3s var(--ease);
}
.shot:hover{transform:translateY(-3px);box-shadow:0 24px 48px -22px rgba(5,20,14,.5)}
/* ảnh giữ nguyên vẹn: không cắt, không kéo giãn, robot dưới đáy luôn thấy đủ.
   Hai ảnh đã chuẩn hoá về cùng 860×1280 nên chiều cao hiển thị bằng nhau. */
.shot-img img{width:100%;height:auto;display:block}
/* caption nằm đúng dải trắng mà tên trong ảnh đã được gỡ bỏ */
.shot figcaption{
  position:absolute;left:0;right:0;top:11.6%;
  padding:0 5.5%;pointer-events:none;
}
.shot figcaption b{
  display:block;font-weight:700;letter-spacing:-.02em;line-height:1.15;color:var(--ink);
  font-size:clamp(13px,5.6cqw,26px);
}
.shot figcaption small{
  display:block;margin-top:.35em;color:var(--slate);font-weight:400;
  font-size:clamp(9px,2.9cqw,13px);
}
@media(max-width:460px){.live-shots{grid-template-columns:1fr}}

/* sơ đồ vòng lặp */
.loopfig{display:grid;gap:10px;margin-top:24px}
@media(min-width:560px){.loopfig{grid-template-columns:repeat(2,1fr)}}
@media(min-width:980px){.loopfig{grid-template-columns:repeat(4,1fr)}}
.lp{
  position:relative;border:1px solid rgba(52,217,124,.42);border-radius:14px;
  background:rgba(255,255,255,.05);padding:16px 16px 15px;
}
.lp b{display:block;color:#fff;font-size:.92rem;font-weight:600;margin-bottom:3px}
.lp span{font-size:.81rem;color:var(--slate-lt);font-weight:300}
.lp em{
  position:absolute;top:12px;right:14px;font-style:normal;
  font-size:.66rem;font-weight:700;letter-spacing:.1em;color:rgba(52,217,124,.55);
}
/* mũi tên nằm gọn trong khoảng cách giữa hai thẻ, không tràn khung */
@media(min-width:980px){
  .loopfig{gap:26px}
  .lp:not(:nth-child(4))::after{
    content:"";position:absolute;top:50%;right:-19px;transform:translateY(-50%);
    width:12px;height:12px;
    -webkit-mask:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23000' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M4 12h15M13 6l6 6-6 6'/%3E%3C/svg%3E") center/contain no-repeat;
          mask:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23000' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M4 12h15M13 6l6 6-6 6'/%3E%3C/svg%3E") center/contain no-repeat;
    background:var(--green-lit);
  }
}
/* thẻ cuối: biểu tượng bộ não AI được cập nhật */
.lp-ai{position:absolute;top:12px;right:12px;width:20px;height:20px;color:var(--green-lit);opacity:.9}
.lp-ai svg{width:100%;height:100%;stroke-width:1.7}
.lp.last em{right:38px}
.loop-back{
  grid-column:1/-1;display:flex;align-items:center;gap:9px;
  font-size:.81rem;color:var(--slate-lt);font-weight:300;margin-top:2px;
}
.loop-back svg{width:17px;height:17px;flex:0 0 auto;color:var(--green-lit);stroke-width:1.9}

/* ---------- dự án ---------- */
.case{display:grid;border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--shadow-lg);background:#fff}
@media(min-width:920px){.case{grid-template-columns:1.1fr 1fr}}
.case-img{position:relative;min-height:300px;background:var(--mint);cursor:zoom-in;overflow:hidden}
.case-img img{width:100%;height:100%;object-fit:cover;transition:transform .6s var(--ease)}
.case-img:hover img{transform:scale(1.04)}
.case-body{padding:clamp(26px,4vw,44px);display:flex;flex-direction:column;justify-content:center}
.case-stats{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;margin-top:24px;padding-top:24px;border-top:1px solid var(--line)}
.case-stats b{display:block;font-size:1.6rem;font-weight:800;color:var(--green);letter-spacing:-.03em}
.case-stats small{font-size:.78rem;color:var(--slate)}

.sites{display:grid;gap:14px;margin-top:20px}
@media(min-width:760px){.sites{grid-template-columns:repeat(3,1fr)}}
.site{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:22px 20px}
.site b{display:block;font-size:1rem}
.site small{color:var(--slate);font-size:.85rem}

.partners{display:grid;gap:14px;margin-top:34px}
@media(min-width:760px){.partners{grid-template-columns:repeat(2,1fr)}}
.partner{border:1px solid var(--line);border-radius:var(--r);padding:24px;background:#fff}
.partner .tag{font-size:.68rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--green)}
.partner .tag.talk{color:#8A6A17}
.partner b{display:block;margin:8px 0 6px;font-size:1.05rem}
.partner p{font-size:.9rem;color:var(--slate);font-weight:300}

/* ---------- gallery / lightbox ---------- */
.lb{
  position:fixed;inset:0;z-index:200;background:rgba(3,10,7,.97);
  display:none;grid-template-rows:auto 1fr auto;grid-template-columns:100%;
  opacity:0;transition:opacity .28s var(--ease);
}
.lb.open{display:grid}
.lb.shown{opacity:1}
.lb-bar,.lb-stage,.lb-foot{min-width:0}
.lb-bar{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:12px var(--pad);color:#fff}
.lb-bar small{color:var(--slate-lt);font-size:.83rem;display:block}
#lbTitle:empty{display:none}
.lb-tools{display:flex;align-items:center;gap:7px;flex:0 0 auto}
.lb-fit{display:flex;align-items:center;gap:6px;font-size:.78rem;color:var(--slate-lt);cursor:pointer;user-select:none;margin-right:6px}
.lb-fit input{width:15px;height:15px;accent-color:var(--green);cursor:pointer}
@media(max-width:560px){.lb-fit span{display:none}}
.lb-btn{
  min-width:40px;height:40px;padding:0 12px;border-radius:11px;
  border:1px solid rgba(255,255,255,.2);background:rgba(255,255,255,.05);
  color:#fff;font-size:1.05rem;font-weight:600;cursor:pointer;line-height:1;
  display:grid;place-items:center;transition:background .2s,border-color .2s;
}
.lb-btn:hover{background:rgba(255,255,255,.14)}
.lb-btn.pct{font-size:.8rem;font-variant-numeric:tabular-nums;min-width:62px}
.lb-btn.x{font-size:1.4rem;border-color:rgba(255,255,255,.28)}
.lb-btn.x:hover{background:var(--green);border-color:var(--green)}
.lb-stage{
  position:relative;overflow:hidden;min-height:0;
  display:grid;place-items:center;touch-action:none;cursor:grab;
}
.lb-stage.grabbing{cursor:grabbing}
.lb-stage img{
  min-width:0;min-height:0;
  max-width:100%;max-height:100%;object-fit:contain;border-radius:var(--r-sm);
  transform-origin:center center;will-change:transform;user-select:none;-webkit-user-drag:none;
}
.lb-stage.no-fit img{max-width:none;max-height:none}
.lb-stage img.anim{transition:transform .26s var(--ease)}
.lb-nav{
  position:absolute;top:50%;transform:translateY(-50%);z-index:3;
  width:46px;height:46px;border-radius:50%;border:1px solid rgba(255,255,255,.22);
  background:rgba(5,20,14,.62);backdrop-filter:blur(6px);color:#fff;font-size:1.3rem;cursor:pointer;
  display:grid;place-items:center;line-height:1;transition:background .2s;
}
.lb-nav:hover{background:var(--green)}
.lb-prev{left:8px} .lb-next{right:8px}
.lb-foot{padding:12px var(--pad) calc(18px + env(safe-area-inset-bottom,0px));color:#fff}
.lb-cap{font-size:.9rem;font-weight:500;margin-bottom:10px;text-align:center;color:#E6F0EA}
.lb-hint{font-size:.74rem;color:var(--slate-lt);text-align:center;margin-bottom:12px;font-weight:300}
.lb-thumbs{display:flex;gap:8px;overflow-x:auto;padding-bottom:6px;scrollbar-width:thin}
.lb-thumbs img{
  width:72px;height:54px;object-fit:cover;border-radius:7px;cursor:pointer;
  opacity:.42;transition:opacity .2s,outline-color .2s;outline:2px solid transparent;flex:0 0 auto;
}
.lb-thumbs img.on{opacity:1;outline-color:var(--green-lit)}
@media(min-width:900px){.lb-prev{left:20px}.lb-next{right:20px}}
@media(max-width:560px){
  .lb-thumbs img{width:58px;height:44px}
  .lb-hint{display:none}
}
.lb.solo .lb-nav,.lb.solo .lb-thumbs{display:none}

/* ---------- công nghệ ---------- */
.why{display:grid;gap:14px;margin-top:34px}
@media(min-width:700px){.why{grid-template-columns:repeat(2,1fr)}}
@media(min-width:1050px){.why{grid-template-columns:repeat(4,1fr)}}
.why>div{border:1px solid rgba(255,255,255,.14);border-radius:var(--r);padding:24px 22px;background:rgba(255,255,255,.03)}
.why b{display:block;color:var(--lime);font-size:.72rem;letter-spacing:.12em;text-transform:uppercase;margin-bottom:10px}
.why h3{color:#fff;font-size:1.05rem;margin-bottom:8px}
.why p{font-size:.88rem;color:var(--slate-lt);font-weight:300}


.moat{
  margin-top:34px;border-radius:var(--r-lg);padding:clamp(24px,3.4vw,36px);
  background:linear-gradient(140deg,rgba(35,164,92,.16),rgba(35,164,92,.03));
  border:1px solid rgba(52,217,124,.24);
}
.moat h3{color:#fff;margin-bottom:12px}
.moat p{color:#C8D8CE;font-weight:300;font-size:.95rem;max-width:78ch}

/* ---------- lộ trình ---------- */
.road{position:relative;display:grid}
.road::before{content:"";position:absolute;left:13px;top:8px;bottom:8px;width:2px;background:linear-gradient(180deg,var(--green),rgba(35,164,92,.15))}
.road-item{position:relative;padding:0 0 38px 44px;scroll-margin-top:86px}
.road-item:last-child{padding-bottom:0}
.road-dot{position:absolute;left:0;top:4px;width:28px;height:28px;border-radius:50%;background:var(--paper);border:2px solid var(--green);display:grid;place-items:center}
.road-dot i{width:9px;height:9px;border-radius:50%;background:var(--green);display:block}
.road-item.future .road-dot{border-color:var(--line)}
.road-item.future .road-dot i{background:var(--line)}
.road-q{font-size:.74rem;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--green)}
.road-item.future .road-q{color:var(--slate)}
.road-item h3{margin:6px 0 8px}
.road-item p{color:var(--slate);font-size:.92rem;font-weight:300;max-width:52ch}
/* tên phòng trong mô tả = nơi triển khai thiết bị IoT, không chỉ tên gọi suông */
.io-hl{color:var(--green-lit);font-weight:600}
@media(min-width:1000px){
  .road{grid-template-columns:repeat(4,1fr)}
  .road::before{left:8px;right:8px;top:21px;bottom:auto;width:auto;height:2px;background:linear-gradient(90deg,var(--green),rgba(35,164,92,.15))}
  .road-item{padding:52px 22px 0 0}
  .road-dot{top:8px}
}
/* điểm đến được nêu bật ~7s khi điều hướng tới từ chip trong hero —
   1 nhịp mềm (fade in → giữ → fade out), không lặp giật, không đổi kích
   thước nên không gây layout shift */
@keyframes road-highlight{
  0%,100%{box-shadow:0 0 0 0 rgba(52,217,124,0);background:transparent}
  10%,78%{box-shadow:0 0 0 8px rgba(52,217,124,.24);background:rgba(52,217,124,.07)}
}
.road-item{border-radius:var(--r)}
.road-item.hl{animation:road-highlight 7s cubic-bezier(.22,1,.36,1)}
.road-item.hl .road-dot{box-shadow:0 0 0 4px rgba(52,217,124,.18)}
/* ---------- định hướng dài hạn (chưa gắn mốc năm cụ thể) ---------- */
.road-vision{
  margin-top:34px;border:1.5px dashed rgba(52,217,124,.42);border-radius:var(--r-lg);
  padding:clamp(22px,3vw,28px) clamp(22px,3.4vw,32px);
  display:flex;flex-wrap:wrap;gap:14px 26px;align-items:flex-start;
  scroll-margin-top:86px;
}
.road-vision .tag{
  flex:0 0 auto;padding:6px 13px;border-radius:100px;border:1px solid rgba(52,217,124,.45);
  font-size:.7rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--green);
}
.road-vision .txt{flex:1 1 260px}
.road-vision h3{margin:0 0 8px}
.road-vision p{color:var(--slate);font-size:.92rem;font-weight:300;max-width:60ch}
@keyframes vision-highlight{
  0%,100%{background:transparent;border-color:rgba(52,217,124,.42)}
  10%,78%{background:rgba(52,217,124,.1);border-color:rgba(52,217,124,.8)}
}
.road-vision.hl{animation:vision-highlight 7s cubic-bezier(.22,1,.36,1)}

/* ---------- đội ngũ ---------- */
.story{display:grid;gap:26px}
@media(min-width:900px){.story{grid-template-columns:1.15fr 1fr;gap:48px;align-items:center}}
.tl{display:grid;gap:0;border-left:2px solid var(--line);padding-left:22px}
.tl>div{padding-bottom:22px;position:relative}
.tl>div:last-child{padding-bottom:0}
.tl>div::before{content:"";position:absolute;left:-27px;top:8px;width:9px;height:9px;border-radius:50%;background:var(--green)}
.tl b{display:block;font-size:.8rem;letter-spacing:.1em;color:var(--green);font-weight:700}
.tl p{font-size:.94rem;color:var(--slate);font-weight:300;margin-top:3px}
.tl p strong{color:var(--ink);font-weight:600}
.geo{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;margin-top:26px}
.geo>div{background:var(--mint);border-radius:var(--r);padding:18px 20px}
.geo b{display:block;font-size:1rem}
.geo small{font-size:.8rem;color:var(--slate)}

/* ---------- liên hệ ---------- */
.contact{
  background:linear-gradient(150deg,var(--forest),var(--ink) 60%);
  color:#fff;border-radius:var(--r-lg);padding:clamp(34px,6vw,72px);
  position:relative;overflow:hidden;
}
.contact::before{
  content:"";position:absolute;width:520px;height:520px;border-radius:50%;
  background:radial-gradient(circle,rgba(35,164,92,.32),transparent 68%);
  top:-230px;right:-190px;pointer-events:none;
}
.contact-in{position:relative;z-index:1;max-width:620px}
.contact h2{color:#fff;margin:16px 0 16px}
.contact p{color:var(--slate-lt);font-weight:300}
.cinfo{display:grid;gap:12px;margin:28px 0 30px}
.cinfo a,.cinfo span{display:flex;gap:11px;align-items:center;color:#E6F0EA;font-size:.96rem}
.cinfo svg{width:17px;height:17px;color:var(--green-lit);flex:0 0 auto}

/* ---------- footer ---------- */
footer{background:var(--ink);color:var(--slate-lt);padding-block:54px 32px;font-size:.9rem}
.foot-grid{display:grid;gap:32px;padding-bottom:32px;border-bottom:1px solid rgba(255,255,255,.1)}
@media(min-width:760px){.foot-grid{grid-template-columns:1.6fr 1fr 1fr}}
footer .logo{color:#fff;margin-bottom:14px}
footer h4{color:#fff;font-size:.77rem;letter-spacing:.12em;text-transform:uppercase;margin-bottom:14px;font-weight:600}
footer ul{list-style:none;display:grid;gap:9px}
footer a:hover{color:var(--lime)}
.foot-bot{padding-top:22px;display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;font-size:.81rem}

/* ---------- HUD: badge đang xem + đầu trang ---------- */
.hud{
  position:fixed;left:0;right:0;bottom:0;z-index:60;pointer-events:none;
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:0 clamp(14px,4vw,22px) calc(clamp(14px,4vw,22px) + env(safe-area-inset-bottom,0px));
}
.viewing{
  pointer-events:auto;display:inline-flex;align-items:center;gap:9px;
  background:rgba(5,20,14,.9);backdrop-filter:blur(12px) saturate(1.4);
  color:#CFE0D6;font-size:.78rem;font-weight:500;
  padding:9px 15px;border-radius:100px;
  box-shadow:0 10px 26px -10px rgba(0,0,0,.7);
  max-width:min(64vw,340px);min-width:0;
  opacity:0;transform:translateY(12px);
  transition:opacity .32s var(--ease),transform .32s var(--ease);
}
.viewing.on{opacity:1;transform:none}
.viewing i{
  width:6px;height:6px;border-radius:50%;background:var(--green-lit);flex:0 0 auto;
  box-shadow:0 0 0 3px rgba(52,217,124,.25);
}
.viewing b{
  color:var(--lime);font-weight:600;
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;min-width:0;
}
.totop{
  pointer-events:auto;flex:0 0 auto;
  width:46px;height:46px;border-radius:50%;border:none;cursor:pointer;
  background:var(--green);color:#fff;display:grid;place-items:center;
  box-shadow:0 12px 28px -10px rgba(35,164,92,.9);
  opacity:0;transform:translateY(12px) scale(.92);
  transition:opacity .32s var(--ease),transform .32s var(--ease),background .2s;
}
.totop.on{opacity:1;transform:none}
.totop:hover{background:var(--green-lit)}
.totop svg{width:20px;height:20px;stroke-width:2.4}
@media(max-width:420px){
  .viewing{font-size:.73rem;padding:8px 13px}
  .totop{width:42px;height:42px}
}

/* ---------- ảnh phóng to được ---------- */
.zoomable{position:relative;cursor:zoom-in}
/* wrapper tự sinh cho ảnh gắn class="preview" — trong suốt với layout gốc
   (mặc định lấp đầy khối cha; .prod-img.fit co theo nội dung như ảnh gốc) */
.zm-wrap{display:block;width:100%;height:100%}
.prod-img.fit .zm-wrap{width:auto}
.zoom-badge{
  position:absolute;left:14px;bottom:14px;z-index:2;
  display:inline-flex;align-items:center;gap:7px;
  background:rgba(5,20,14,.82);backdrop-filter:blur(8px);
  color:#fff;font-size:.79rem;font-weight:600;
  padding:9px 14px;border-radius:100px;
  box-shadow:0 8px 20px -8px rgba(0,0,0,.7);
  transition:background .25s var(--ease),transform .25s var(--ease);
}
.zoom-badge svg{width:15px;height:15px;stroke-width:2.2}
.zoomable:hover .zoom-badge,.zoomable:focus-visible .zoom-badge{background:var(--green);transform:translateY(-2px)}
/* Modifier tuỳ chọn: thêm class "zoom-badge-transparent" (cùng "preview" trên
   thẻ <img>, hoặc trực tiếp trên chính phần tử .zoomable) để badge trong suốt
   hơn, đỡ che ảnh lúc chưa hover. Không thêm class này = giữ nguyên mặc định
   như hiện tại. Hover vẫn luôn chuyển hẳn sang xanh đậm để giữ rõ tín hiệu
   "có thể bấm". */
.zoom-badge-transparent .zoom-badge{background:rgba(5,20,14,.38)}
/* Modifier tuỳ chọn: thêm class "zoom-badge-no-label" (cùng "preview", hoặc
   trực tiếp trên 1 phần tử .zoomable viết tay) để badge chỉ còn icon kính
   lúp — bỏ chữ "Phóng to", thu gọn thành nút tròn nhỏ, đỡ che ảnh hơn nữa. */
.zoom-badge-no-label .zoom-badge{padding:10px;gap:0}
.zoom-badge-no-label .zoom-badge-label{display:none}
/* Modifier tuỳ chọn: thêm class "zoom-badge-invisible" để ẩn HOÀN TOÀN nền
   badge lúc nghỉ — khác với "zoom-badge-transparent" (vẫn còn blur + shadow
   để dễ đọc chữ), modifier này bỏ luôn backdrop-filter và box-shadow nên
   không còn vệt mờ/bóng nào cả. Nên dùng chung với "zoom-badge-no-label"
   (chỉ còn icon) vì chữ trắng không nền/không blur sẽ khó đọc trên ảnh.
   Icon đổi màu đen (var(--ink)) lúc nghỉ vì không còn nền tối phía sau để
   nổi màu trắng; hover vẫn có nền xanh nên icon đổi lại trắng cho tương phản. */
.zoom-badge-invisible .zoom-badge{background:transparent;backdrop-filter:none;box-shadow:none;color:var(--ink)}
.zoom-badge-invisible:hover .zoom-badge,.zoom-badge-invisible:focus-visible .zoom-badge{color:#fff}

/* ---------- reveal ---------- */
.rv{opacity:0;transform:translateY(22px);transition:opacity .7s var(--ease),transform .7s var(--ease)}
.rv.in{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){
  .rv{opacity:1;transform:none;transition:none}
  html{scroll-behavior:auto}
  .case-img img,.nav,.viewing,.totop,.zoom-badge,.lb,.lb-stage img{transition:none}
  .nav.hide{transform:none}
  .nav-links{scroll-behavior:auto}
}