/* ===================================================================
   CATNHANH.COM — Quảng Cáo Nhân Tâm
   Laser & CNC fabrication — design tokens drawn from the workshop
   itself: ember sparks off steel, cold arc-light, brushed metal,
   polished brass letters, drafting-paper cut guides.
   =================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Big+Shoulders+Display:wght@600;700;800;900&family=Inter:wght@400;500;600;700;800&family=IBM+Plex+Mono:wght@400;500;600&display=swap');

:root{
  /* -- surfaces -- */
  --ink:        #0b0c0e;   /* workshop shadow, page bg */
  --panel:      #16181b;   /* raised card surface */
  --panel-2:    #1e2124;   /* deeper card / hover surface */
  --steel:      #34383d;   /* brushed-steel border */
  --steel-soft: #26292d;   /* faint divider */

  /* -- accents, lifted straight from the material world -- */
  --spark:      #ff5a1f;   /* hot laser spark / ember */
  --spark-dim:  #c2450f;   /* ember, hover/pressed */
  --arc:        #d9f1ff;   /* cold arc-light / laser optic glow */
  --arc-dim:    #7fb8d6;
  --brass:      #d1a949;   /* polished brass / gold letters */
  --brass-dim:  #a5822f;

  /* -- Zalo brand blue: kept literal, recognisable on sight in VN -- */
  --zalo:       #0068ff;
  --zalo-dim:   #0055cc;

  /* -- text -- */
  --paper:      #f2efe6;   /* body copy, warm off-white */
  --paper-dim:  #9a958c;   /* secondary text */
  --paper-faint:#5f5c56;

  --radius: 3px;
  --radius-lg: 6px;
  --ease: 0.25s cubic-bezier(.4,0,.2,1);

  --font-display: 'Big Shoulders Display', sans-serif;
  --font-body: 'Inter', sans-serif;
  --font-mono: 'IBM Plex Mono', monospace;
}

/* ===================== RESET ===================== */
*,*::before,*::after{ box-sizing:border-box; margin:0; padding:0; }
html{ scroll-behavior:smooth; }
body{
  background:var(--ink); color:var(--paper);
  font-family:var(--font-body); font-size:16px; line-height:1.65;
  -webkit-font-smoothing:antialiased;
}
img{ max-width:100%; display:block; }
a{ color:inherit; text-decoration:none; }
button{ font-family:inherit; cursor:pointer; }
ul{ list-style:none; }
.container{ max-width:1180px; margin:0 auto; padding:0 24px; }

/* grid/flex children can otherwise refuse to shrink below their content's
   natural width and force the whole row wider than the viewport */
.hero-copy, .hero-visual, .about-body, .about-equip, .contact-cards,
.contact-panel, .footer-brand, .footer-col, .contact-card > div,
.service-card, .process-step, .p-card{ min-width:0; }

::selection{ background:var(--spark); color:var(--ink); }

:focus-visible{ outline:2px solid var(--arc); outline-offset:3px; }

@media (prefers-reduced-motion: reduce){
  :not(.hero-slide):not(.hero-slide *){ animation-duration:0.001ms !important; animation-iteration-count:1 !important; transition-duration:0.001ms !important; scroll-behavior:auto !important; }
}

/* ===================== TYPE ===================== */
h1,h2,h3,h4{ font-family:var(--font-display); text-transform:uppercase; line-height:1.08; letter-spacing:0.03em; }
.eyebrow{
  display:inline-flex; align-items:center; gap:10px;
  font-family:var(--font-mono); font-size:0.82rem; font-weight:600; letter-spacing:2.5px;
  text-transform:uppercase; color:var(--spark); margin-bottom:16px;
}
/* the "cut-path" dash — a laser-guide mark borrowed from the nesting
   layout photo on the product page (dashed cutting arrows on steel) */
.eyebrow::before{
  content:''; display:inline-block; width:26px; height:1px;
  background-image:linear-gradient(90deg, var(--spark) 60%, transparent 0);
  background-size:6px 1px; background-repeat:repeat-x;
}
.eyebrow::after{
  content:''; width:5px; height:5px; border-radius:50%;
  background:var(--spark); box-shadow:0 0 6px 1px var(--spark);
  flex-shrink:0;
}

.section-title{ font-size:clamp(2rem,4.4vw,3.1rem); font-weight:800; margin-bottom:20px; }
.section-title .hl{ color:var(--spark); }
.section-lede{ color:var(--paper-dim); max-width:580px; font-size:1.05rem; line-height:1.7; }
.section-head{ margin-bottom:52px; }
.section-head.center{ text-align:center; margin-left:auto; margin-right:auto; }
.section-head.center .section-lede{ margin-left:auto; margin-right:auto; }

.mono-tag{
  font-family:var(--font-mono); font-size:0.8rem; font-weight:500; letter-spacing:1.5px;
  text-transform:uppercase; color:var(--paper-dim);
}

/* ===================== BUTTONS ===================== */
.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:9px;
  padding:14px 26px; border-radius:var(--radius); border:1px solid transparent;
  font-family:var(--font-body); font-weight:700; font-size:0.95rem;
  letter-spacing:0.02em; text-transform:uppercase; transition:transform var(--ease), background var(--ease), border-color var(--ease), color var(--ease);
  text-align:center; min-width:0;
}
.btn svg{ width:18px; height:18px; flex-shrink:0; }
.btn-spark{ background:var(--spark); color:#1a0800; }
.btn-spark:hover{ background:#ff7440; transform:translateY(-2px); }
.btn-zalo{ background:var(--zalo); color:#fff; }
.btn-zalo:hover{ background:#2b82ff; transform:translateY(-2px); }
.btn-ghost{ background:transparent; color:var(--paper); border-color:var(--steel); }
.btn-ghost:hover{ border-color:var(--paper-dim); }
.btn-lg{ padding:17px 34px; font-size:1.08rem; }
.btn-block{ width:100%; }

/* ===================== HEADER ===================== */
.site-header{
  position:fixed; inset:0 0 auto 0; z-index:200; height:76px;
  display:flex; align-items:center;
  background:rgba(11,12,14,0.88); backdrop-filter:blur(10px);
  border-bottom:1px solid var(--steel-soft);
}
.site-header .container{ display:flex; align-items:center; justify-content:space-between; gap:24px; }
.brand{ display:flex; align-items:center; gap:12px; flex-shrink:0; }
.brand-badge{
  background:var(--paper); border-radius:8px; padding:5px;
  width:40px; height:40px; display:flex; align-items:center; justify-content:center;
  flex-shrink:0;
}
.brand-badge img{ width:100%; height:100%; object-fit:contain; }
.brand-word{ font-family:var(--font-display); font-size:1.35rem; font-weight:800; letter-spacing:0.06em; line-height:1; }
.brand-word span{ color:var(--spark); }
.brand-sub{ display:block; font-family:var(--font-mono); font-size:0.74rem; font-weight:500; letter-spacing:1.6px; color:var(--paper-dim); margin-top:3px; text-transform:uppercase; }

.main-nav{ display:flex; align-items:center; gap:30px; }
.main-nav a{
  font-size:0.86rem; font-weight:600; color:var(--paper-dim);
  text-transform:uppercase; letter-spacing:1.3px; transition:color var(--ease);
  position:relative; padding:6px 0;
}
.main-nav a:hover, .main-nav a.active{ color:var(--paper); }
.main-nav a.active::after{
  content:''; position:absolute; left:0; right:0; bottom:0; height:2px; background:var(--spark);
}
.header-actions{ display:flex; align-items:center; gap:12px; flex-shrink:0; }
.header-actions .btn{ padding:11px 20px; font-size:0.85rem; }
.hide-mobile{ display:inline-flex; }

.hamburger{
  display:none; width:40px; height:40px; border:1px solid var(--steel); border-radius:var(--radius);
  background:transparent; flex-direction:column; align-items:center; justify-content:center; gap:5px;
}
.hamburger span{ width:18px; height:2px; background:var(--paper); }

.mobile-nav{
  display:none; position:fixed; top:76px; left:0; right:0; z-index:199;
  background:var(--panel); border-bottom:1px solid var(--steel-soft);
  flex-direction:column; padding:8px 24px 20px;
}
.mobile-nav.open{ display:flex; }
.mobile-nav a{
  padding:14px 0; border-bottom:1px solid var(--steel-soft);
  font-family:var(--font-display); font-size:1.1rem; text-transform:uppercase; letter-spacing:0.08em;
}
.mobile-nav .btn{ margin-top:16px; }

/* ===================== HERO ===================== */
.hero{ position:relative; padding:168px 0 100px; overflow:hidden; }
.hero-grid{
  position:absolute; inset:0; pointer-events:none; z-index:0;
  background-image:
    linear-gradient(rgba(255,90,31,0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,90,31,0.05) 1px, transparent 1px);
  background-size:46px 46px;
  mask-image:radial-gradient(ellipse 70% 60% at 30% 30%, black, transparent);
}
.hero .container{ position:relative; z-index:1; display:grid; grid-template-columns:1.05fr 0.95fr; gap:60px; align-items:center; }
.hero-copy h1{ font-size:clamp(3rem,6.4vw,5.2rem); font-weight:900; line-height:1.12; letter-spacing:0.02em; margin-bottom:26px; }
.hero-copy h1 .line{ display:block; }
.hero-copy h1 .line.spark{ color:var(--spark); }
.hero-desc{ color:var(--paper-dim); max-width:480px; font-size:1.06rem; margin-bottom:36px; }
.hero-desc strong{ color:var(--paper); font-weight:600; }
.hero-cta{ display:flex; gap:14px; flex-wrap:wrap; margin-bottom:28px; }
.hero-alt-phone{ font-family:var(--font-mono); font-size:0.85rem; color:var(--paper-faint); }
.hero-alt-phone a{ color:var(--arc-dim); }
.hero-alt-phone a:hover{ color:var(--arc); }

.hero-visual{ position:relative; }
.hero-frame{
  position:relative; border-radius:var(--radius-lg); overflow:hidden;
  border:1px solid var(--steel); box-shadow:0 30px 70px -20px rgba(0,0,0,0.7);
  aspect-ratio: 3/3.6;
}

/* -- carousel: slide & cross-fade -- */
.hero-carousel{
  position:absolute; inset:0; z-index:1; overflow:hidden;
  background:#1a1d23;
}
.hero-slide{
  position:absolute; top:0; left:0; width:100%; height:100%;
  opacity:0; pointer-events:none; z-index:0;
  transform:scale(1.05);
  transition:opacity 0.75s cubic-bezier(0.25, 1, 0.5, 1), transform 0.75s cubic-bezier(0.25, 1, 0.5, 1);
}
.hero-slide.is-active{
  opacity:1; pointer-events:auto;
  z-index:2;
  transform:scale(1);
}
.hero-slide.is-leaving{
  opacity:0; pointer-events:none;
  z-index:1;
  transform:scale(0.96);
  transition:opacity 0.75s cubic-bezier(0.25, 1, 0.5, 1), transform 0.75s cubic-bezier(0.25, 1, 0.5, 1);
}
.hero-slide img{
  width:100%; height:100%; object-fit:cover; display:block;
  transform:scale(1);
  transition:transform 0.75s ease-out, filter 0.75s ease-out;
  filter:saturate(1.05) contrast(1.05);
}
.hero-slide.is-active img{
  animation: heroKenBurns 4s ease-out forwards;
  filter:saturate(1.12) contrast(1.08) brightness(1.02);
}
.hero-slide.is-leaving img{
  filter:saturate(0.9) contrast(0.9);
}

@keyframes heroKenBurns {
  0% { transform: scale(1.12); }
  100% { transform: scale(1.04); }
}

.hero-frame::after{
  content:''; position:absolute; inset:0; z-index:2; pointer-events:none;
  background:linear-gradient(180deg, rgba(11,12,14,0) 35%, rgba(11,12,14,0.92) 100%);
}
.hero-cut-path{ position:absolute; inset:-14px; z-index:3; pointer-events:none; }
.hero-cut-path .path{
  fill:none; stroke:var(--arc); stroke-width:1.4; stroke-dasharray:7 6; opacity:0.85;
  stroke-linecap:round;
  animation:dash-crawl 22s linear infinite;
}
.hero-cut-path .head{ fill:var(--spark); filter:drop-shadow(0 0 6px var(--spark)); }
@keyframes dash-crawl{ to{ stroke-dashoffset:-1000; } }

.hero-caption{
  position:absolute; left:14px; bottom:14px; z-index:4;
  width:fit-content; max-width:calc(100% - 90px);
  padding:6px 12px;
  background:rgba(11,12,14,0.75); backdrop-filter:blur(10px);
  border:1px solid rgba(217,241,255,0.25); border-left:3px solid var(--spark);
  border-radius:4px;
  font-family:var(--font-mono); font-size:0.82rem; font-weight:500; color:#ffffff;
  letter-spacing:0.4px;
  box-shadow:0 4px 12px rgba(0,0,0,0.5);
  transition:opacity 0.3s ease;
}

.hero-dots{ position:absolute; right:18px; bottom:20px; z-index:5; display:flex; gap:7px; }
.hero-dots button{
  width:7px; height:7px; border-radius:50%; background:rgba(242,239,230,0.35);
  border:none; padding:0; cursor:pointer; transition:background var(--ease), transform var(--ease);
}
.hero-dots button.active{ background:var(--spark); transform:scale(1.35); }
.hero-dots button:hover{ background:rgba(242,239,230,0.6); }

.hero-nav{
  position:absolute; top:50%; transform:translateY(-50%); z-index:6;
  width:38px; height:38px; border-radius:50%;
  background:rgba(11,12,14,0.5); border:1px solid rgba(217,241,255,0.22);
  color:var(--paper); display:flex; align-items:center; justify-content:center;
  font-size:1.15rem; line-height:1; transition:background var(--ease), transform var(--ease);
}
.hero-nav:hover{ background:rgba(11,12,14,0.8); transform:translateY(-50%) scale(1.08); }
.hero-nav.prev{ left:14px; }
.hero-nav.next{ right:14px; }

/* ===================== ABOUT ===================== */
.about{ padding:110px 0; border-top:1px solid var(--steel-soft); }
.about .container{ display:grid; grid-template-columns:1fr 1fr; gap:60px; align-items:center; }
.about-body p{ color:var(--paper-dim); margin-bottom:20px; line-height:1.7; }
.check-list{ display:flex; flex-direction:column; gap:12px; margin-bottom:24px; }
.check-list li{ display:flex; gap:12px; font-size:0.96rem; color:var(--paper); align-items:flex-start; }
.check-list li::before{
  content:''; flex-shrink:0; width:16px; height:16px; margin-top:4px; border-radius:2px;
  background:var(--spark);
  -webkit-mask:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath fill='black' d='M9 16.2 4.8 12l-1.4 1.4L9 19 21 7l-1.4-1.4z'/%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'%3E%3Cpath fill='black' d='M9 16.2 4.8 12l-1.4 1.4L9 19 21 7l-1.4-1.4z'/%3E%3C/svg%3E") center/contain no-repeat;
}

.about-stats{
  display:grid; grid-template-columns:repeat(3,1fr); gap:12px;
  margin:24px 0; padding:18px 16px;
  background:var(--panel); border:1px solid var(--steel); border-radius:var(--radius-lg);
  box-shadow:0 8px 24px -10px rgba(0,0,0,0.5);
}
.stat-box{ text-align:center; position:relative; }
.stat-box:not(:last-child)::after{
  content:''; position:absolute; right:-6px; top:15%; bottom:15%; width:1px; background:var(--steel-soft);
}
.stat-val{ display:block; font-family:var(--font-display); font-size:1.45rem; font-weight:800; color:var(--spark); line-height:1.1; letter-spacing:0.04em; }
.stat-lbl{ font-family:var(--font-mono); font-size:0.74rem; font-weight:500; color:var(--paper-dim); text-transform:uppercase; letter-spacing:0.5px; margin-top:4px; display:block; }

.materials-label{ font-family:var(--font-mono); font-size:0.82rem; font-weight:600; letter-spacing:2px; text-transform:uppercase; color:var(--paper-dim); margin:24px 0 12px; }
.materials{ display:flex; flex-wrap:wrap; gap:10px; }
.material-chip{
  display:flex; align-items:center; gap:8px; padding:9px 16px; border-radius:20px;
  border:1px solid var(--steel); font-family:var(--font-mono); font-size:0.88rem; font-weight:500; letter-spacing:0.5px;
  background:var(--panel); color:var(--paper); transition:border-color var(--ease), transform var(--ease);
}
.material-chip:hover{ border-color:var(--spark); transform:translateY(-2px); }
.material-chip i{ width:11px; height:11px; border-radius:50%; display:block; flex-shrink:0; }
.mc-inox i{ background:linear-gradient(135deg,#eef2f5,#9aa4ac); }
.mc-mica i{ background:linear-gradient(135deg,#5ad1a0,#1f8f68); }
.mc-alu i{ background:linear-gradient(135deg,#f0d98a,var(--brass-dim)); }
.mc-go i{ background:linear-gradient(135deg,#c99456,#8a5a2b); }
.mc-sat i{ background:linear-gradient(135deg,#6b6f75,#26292d); }

.about-equip{ display:flex; flex-direction:column; gap:18px; }
.equip-card{
  position:relative; border-radius:var(--radius-lg); overflow:hidden; border:1px solid var(--steel);
  box-shadow:0 12px 30px -10px rgba(0,0,0,0.6);
}
.equip-card img{ width:100%; height:225px; object-fit:cover; filter:grayscale(0.08) contrast(1.08); transition:transform 0.5s var(--ease); }
.equip-card:hover img{ transform:scale(1.04); }
.equip-caption{
  position:absolute; left:12px; bottom:12px;
  width:fit-content; max-width:calc(100% - 24px);
  padding:7px 12px;
  background:rgba(11,12,14,0.72); backdrop-filter:blur(10px);
  border:1px solid rgba(255,255,255,0.15); border-left:3px solid var(--spark);
  border-radius:4px;
  font-family:var(--font-mono); font-size:0.82rem; color:#ffffff;
  box-shadow:0 4px 14px rgba(0,0,0,0.5);
  line-height:1.4;
  pointer-events:none;
}
.equip-caption b{ color:var(--spark); font-weight:700; margin-right:4px; }

/* ===================== SERVICES ===================== */
.services{ padding:110px 0; background:var(--panel); border-top:1px solid var(--steel-soft); border-bottom:1px solid var(--steel-soft); }
.services-grid{ display:grid; grid-template-columns:repeat(4,1fr); gap:1px; background:var(--steel-soft); border:1px solid var(--steel-soft); border-radius:var(--radius-lg); overflow:hidden; }
.service-card{
  background:var(--panel); display:flex; flex-direction:column; text-decoration:none;
  transition:background var(--ease);
}
.service-card:hover{ background:var(--panel-2); }
.service-card:hover .service-img img{ transform:scale(1.06); }
.service-img{ height:190px; overflow:hidden; position:relative; }
.service-img img{ width:100%; height:100%; object-fit:cover; transition:transform 0.5s var(--ease); }
.service-num{
  position:absolute; top:12px; left:12px; font-family:var(--font-mono); font-size:0.84rem; font-weight:700;
  color:var(--spark); background:rgba(11,12,14,0.88); backdrop-filter:blur(4px);
  border:1px solid rgba(255,90,31,0.5); padding:4px 10px; border-radius:3px; letter-spacing:1px;
  box-shadow:0 2px 8px rgba(0,0,0,0.6);
}
.service-body{ padding:24px 24px 28px; flex:1; display:flex; flex-direction:column; }
.service-body h3{ font-size:1.32rem; font-weight:700; margin-bottom:10px; letter-spacing:0.05em; }
.service-body p{ color:var(--paper-dim); font-size:0.94rem; line-height:1.65; flex:1; margin-bottom:18px; }
.service-link{ font-family:var(--font-mono); font-size:0.85rem; font-weight:600; color:var(--spark); letter-spacing:0.5px; display:inline-flex; align-items:center; gap:6px; }
.service-card:hover .service-link{ color:#ff8a55; }

/* ===================== GALLERY (home preview) ===================== */
.gallery{ padding:110px 0; }
.gallery-grid{
  display:grid; grid-template-columns:repeat(4,1fr); grid-auto-rows:180px; gap:14px;
}
.gallery-grid a{ position:relative; border-radius:var(--radius); overflow:hidden; border:1px solid var(--steel); display:block; }
.gallery-grid img{ width:100%; height:100%; object-fit:cover; transition:transform 0.5s var(--ease); }
.gallery-grid a:hover img{ transform:scale(1.08); }
.gallery-grid a::after{ content:''; position:absolute; inset:0; background:linear-gradient(0deg, rgba(11,12,14,0.96) 0%, rgba(11,12,14,0.55) 60%, transparent 100%); }
.gallery-grid span{
  position:absolute; left:10px; bottom:10px; z-index:2; font-family:var(--font-mono);
  width:fit-content; max-width:calc(100% - 20px);
  font-size:0.82rem; font-weight:500; color:#ffffff; letter-spacing:0.3px;
  background:rgba(11,12,14,0.75); backdrop-filter:blur(8px);
  border:1px solid rgba(255,255,255,0.15); border-left:3px solid var(--spark);
  padding:4px 10px; border-radius:3px;
  box-shadow:0 4px 12px rgba(0,0,0,0.5);
  pointer-events:none;
}
.g-big{ grid-column:span 2; grid-row:span 2; }
.gallery-more{ text-align:center; margin-top:40px; }

/* ===================== PROCESS ===================== */
.process{ padding:110px 0; background:var(--panel); border-top:1px solid var(--steel-soft); border-bottom:1px solid var(--steel-soft); }
.process-grid{ display:grid; grid-template-columns:repeat(4,1fr); gap:0; position:relative; }
.process-grid::before{
  content:''; position:absolute; top:26px; left:6%; right:6%; height:1px;
  background-image:linear-gradient(90deg, var(--steel) 55%, transparent 0);
  background-size:12px 1px; background-repeat:repeat-x;
}
.process-step{ padding:0 22px; position:relative; }
.process-step .num{
  font-family:var(--font-mono); font-size:0.9rem; color:var(--spark);
  width:52px; height:52px; border:1px solid var(--steel); border-radius:50%;
  display:flex; align-items:center; justify-content:center; background:var(--ink);
  position:relative; z-index:1; margin-bottom:22px;
}
.process-step h4{ font-size:1.12rem; font-weight:700; margin-bottom:10px; letter-spacing:0.05em; }
.process-step p{ color:var(--paper-dim); font-size:0.9rem; }

/* ===================== CTA BAND ===================== */
.cta-band{ padding:96px 0; text-align:center; position:relative; overflow:hidden; }
.cta-band::before{
  content:''; position:absolute; inset:0;
  background:radial-gradient(ellipse 60% 90% at 50% 50%, rgba(255,90,31,0.08), transparent 70%);
}
.cta-band .container{ position:relative; }
.cta-band h2{ font-size:clamp(1.9rem,4vw,3rem); font-weight:800; margin-bottom:16px; }
.cta-band p{ color:var(--paper-dim); margin-bottom:34px; }
.cta-band .hero-cta{ justify-content:center; }

/* ===================== CONTACT ===================== */
.contact{ padding:110px 0; }
.contact .container{ display:grid; grid-template-columns:1fr 1fr; gap:60px; }
.contact-cards{ display:flex; flex-direction:column; gap:16px; }
.contact-card{
  border:1px solid var(--steel); background:var(--panel); border-radius:var(--radius);
  padding:22px 24px; display:flex; gap:16px; align-items:flex-start;
}
.contact-card .ic{
  width:38px; height:38px; border-radius:50%; background:var(--steel-soft);
  display:flex; align-items:center; justify-content:center; flex-shrink:0; color:var(--spark);
}
.contact-card .ic svg{ width:18px; height:18px; }
.contact-card h4{ font-family:var(--font-body); text-transform:none; font-size:1.02rem; font-weight:700; margin-bottom:5px; }
.contact-card p{ color:var(--paper-dim); font-size:0.95rem; }
.contact-card a.map-link{ color:var(--arc-dim); font-family:var(--font-mono); font-size:0.86rem; font-weight:500; display:inline-block; margin-top:6px; }
.contact-card a.map-link:hover{ color:var(--arc); }
.contact-card a.direct{ color:var(--paper); font-weight:600; }
.contact-card a.direct:hover{ color:var(--spark); }

.contact-panel{
  background:var(--panel); border:1px solid var(--steel); border-radius:var(--radius-lg);
  padding:38px; display:flex; flex-direction:column; gap:18px;
}
.contact-panel h3{ font-size:1.5rem; font-weight:700; margin-bottom:2px; }
.contact-panel .section-lede{ margin-bottom:6px; }
.contact-panel .btn{ margin-top:6px; }
.contact-note{ font-size:0.88rem; color:var(--paper-dim); font-family:var(--font-mono); }

/* ===================== FOOTER ===================== */
.site-footer{ background:var(--panel); border-top:1px solid var(--steel-soft); }
.footer-top{ display:grid; grid-template-columns:1.6fr 1fr 1fr 1.1fr; gap:44px; padding:64px 24px 50px; max-width:1180px; margin:0 auto; }
.footer-brand .brand{ margin-bottom:14px; }
.footer-brand p{ color:var(--paper-dim); font-size:0.92rem; max-width:280px; }
.footer-col h5{ font-family:var(--font-mono); font-size:0.82rem; font-weight:600; letter-spacing:2px; text-transform:uppercase; color:var(--paper-dim); margin-bottom:16px; }
.footer-col a, .footer-col p{ display:block; color:var(--paper-dim); font-size:0.92rem; margin-bottom:10px; }
.footer-col a:hover{ color:var(--spark); }
.footer-bottom{ border-top:1px solid var(--steel-soft); padding:20px 24px; text-align:center; }
.footer-bottom p{ font-family:var(--font-mono); font-size:0.82rem; color:var(--paper-dim); }

/* ===================== FLOATING CONTACT ===================== */
.float-contact{ position:fixed; right:20px; bottom:20px; z-index:250; display:none; flex-direction:column; gap:10px; align-items:flex-end; }
.float-btn{
  display:flex; align-items:center; gap:10px; padding:13px 18px; border-radius:30px;
  font-family:var(--font-body); font-weight:700; font-size:0.9rem; letter-spacing:0.02em;
  text-transform:uppercase; box-shadow:0 10px 26px -8px rgba(0,0,0,0.6);
  transition:transform var(--ease);
}
.float-btn:hover{ transform:translateY(-2px) scale(1.02); }
.float-btn.zalo{ background:var(--zalo); color:#fff; }
.float-btn.call{ background:var(--spark); color:#1a0800; }
.float-btn svg{ width:19px; height:19px; }

.header-phone{
  display:inline-flex; align-items:center; gap:8px;
  font-family:var(--font-mono); font-size:0.88rem; font-weight:600;
  color:var(--paper); padding:9px 16px; border-radius:var(--radius);
  border:1px solid var(--steel); background:transparent;
  transition:border-color var(--ease), color var(--ease), background var(--ease);
}
.header-phone:hover{
  border-color:var(--paper-dim); color:var(--spark);
  background:rgba(255,255,255,0.04);
}
.header-phone svg{ width:16px; height:16px; color:var(--spark); }

/* ===================== PRODUCT PAGE ===================== */
.page-banner{ padding:150px 0 60px; border-bottom:1px solid var(--steel-soft); }
.breadcrumb{ font-family:var(--font-mono); font-size:0.86rem; color:var(--paper-dim); margin-bottom:18px; }
.breadcrumb a{ color:var(--arc-dim); }
.breadcrumb a:hover{ color:var(--arc); }
.page-banner h1{ font-size:clamp(2.3rem,5vw,3.6rem); font-weight:900; margin-bottom:14px; }
.page-banner .section-lede{ max-width:640px; }

.filters{ position:sticky; top:76px; z-index:150; background:rgba(11,12,14,0.95); backdrop-filter:blur(12px); border-bottom:1px solid var(--steel-soft); padding:18px 0; }
.filter-row{ display:flex; gap:10px; flex-wrap:wrap; }
.filter-btn{
  padding:10px 20px; border-radius:20px; border:1px solid var(--steel); background:transparent;
  color:var(--paper); font-family:var(--font-mono); font-size:0.88rem; font-weight:500; letter-spacing:0.4px;
  transition:all var(--ease);
}
.filter-btn:hover{ color:var(--paper); border-color:var(--paper-dim); background:rgba(255,255,255,0.05); }
.filter-btn.active{ background:var(--spark); border-color:var(--spark); color:#1a0800; font-weight:700; }
.filter-count{ margin-left:auto; font-family:var(--font-mono); font-size:0.86rem; color:var(--paper-dim); display:flex; align-items:center; }

.catalog{ padding:60px 0 110px; }
.catalog-grid{ display:grid; grid-template-columns:repeat(4,1fr); gap:20px; }
.p-card{
  border:1px solid var(--steel); border-radius:var(--radius); overflow:hidden; background:var(--panel);
  transition:transform var(--ease), border-color var(--ease), box-shadow var(--ease); cursor:pointer;
}
.p-card:hover{ transform:translateY(-5px); border-color:var(--spark); box-shadow:0 12px 28px -10px rgba(255,90,31,0.25); }
.p-card .thumb{ height:220px; overflow:hidden; }
.p-card .thumb img{ width:100%; height:100%; object-fit:cover; transition:transform 0.4s var(--ease); }
.p-card:hover .thumb img{ transform:scale(1.07); }
.p-card .info{ padding:16px 18px 20px; }
.p-card .tag{ font-family:var(--font-mono); font-size:0.78rem; font-weight:600; color:var(--spark); letter-spacing:1px; text-transform:uppercase; margin-bottom:6px; display:block; }
.p-card h4{ font-family:var(--font-body); text-transform:none; font-size:1.02rem; font-weight:600; letter-spacing:0; line-height:1.45; color:var(--paper); }
.p-card[hidden]{ display:none; }

/* ===================== LIGHTBOX ===================== */
.lightbox{
  position:fixed; inset:0; z-index:400; background:rgba(6,7,8,0.94);
  display:none; align-items:center; justify-content:center; padding:30px;
}
.lightbox.open{ display:flex; }
.lightbox-inner{ max-width:960px; width:100%; display:grid; grid-template-columns:1.4fr 1fr; gap:0; background:var(--panel); border:1px solid var(--steel); border-radius:var(--radius-lg); overflow:hidden; max-height:88vh; }
.lightbox-img{ background:#000; display:flex; align-items:center; justify-content:center; min-height:280px; }
.lightbox-img img{ max-width:100%; max-height:88vh; object-fit:contain; }
.lightbox-body{ padding:34px; display:flex; flex-direction:column; overflow-y:auto; }
.lightbox-body .tag{ font-family:var(--font-mono); font-size:0.82rem; font-weight:600; color:var(--spark); letter-spacing:1.5px; text-transform:uppercase; margin-bottom:14px; }
.lightbox-body h3{ font-family:var(--font-display); font-size:1.75rem; text-transform:uppercase; font-weight:800; margin-bottom:16px; line-height:1.1; }
.lightbox-body p{ color:var(--paper-dim); font-size:0.96rem; line-height:1.65; margin-bottom:26px; }
.lightbox-body .btn{ margin-bottom:10px; }
.lightbox-close{
  position:absolute; top:24px; right:24px; width:42px; height:42px; border-radius:50%;
  background:rgba(255,255,255,0.08); border:1px solid var(--steel); color:var(--paper);
  display:flex; align-items:center; justify-content:center; font-size:1.3rem;
}
.lightbox-close:hover{ background:rgba(255,255,255,0.16); }
.lightbox-nav{
  position:absolute; top:50%; transform:translateY(-50%); width:46px; height:46px; border-radius:50%;
  background:rgba(255,255,255,0.08); border:1px solid var(--steel); color:var(--paper);
  display:flex; align-items:center; justify-content:center; font-size:1.4rem;
}
.lightbox-nav:hover{ background:rgba(255,255,255,0.16); }
.lightbox-nav.prev{ left:16px; }
.lightbox-nav.next{ right:16px; }

/* ===================== RESPONSIVE ===================== */
@media (max-width:1000px){
  .hero .container{ grid-template-columns:1fr; }
  .hero-visual{ order:-1; max-width:420px; margin:0 auto 10px; }
  .about .container{ grid-template-columns:1fr; }
  .services-grid{ grid-template-columns:repeat(2,1fr); }
  .gallery-grid{ grid-template-columns:repeat(2,1fr); grid-auto-rows:160px; }
  .g-big{ grid-column:span 2; grid-row:span 1; }
  .process-grid{ grid-template-columns:repeat(2,1fr); gap:36px 0; }
  .process-grid::before{ display:none; }
  .contact .container{ grid-template-columns:1fr; }
  .footer-top{ grid-template-columns:1fr 1fr; }
  .catalog-grid{ grid-template-columns:repeat(3,1fr); }
  .lightbox-inner{ grid-template-columns:1fr; }
  .lightbox-img{ max-height:44vh; }
}
@media (max-width:640px){
  .main-nav{ display:none; }
  .header-actions{ display:none; }
  .hamburger{ display:flex; }
  .hero{ padding:130px 0 70px; }
  .about, .services, .gallery, .process, .contact, .cta-band{ padding:70px 0; }
  .services-grid{ grid-template-columns:1fr; }
  .gallery-grid{ grid-template-columns:1fr 1fr; }
  .process-grid{ grid-template-columns:1fr; }
  .footer-top{ grid-template-columns:1fr; gap:34px; }
  .catalog-grid{ grid-template-columns:1fr 1fr; }
  .filter-count{ display:none; }
  .float-contact{ display:flex; }
  .float-btn span{ display:none; }
  .float-btn{ padding:14px; border-radius:50%; }
  .float-btn svg{ width:22px; height:22px; }
}