/* ==========================================================================
   Liberty IT Solutions — Design System
   Concept: "Minimalist Dark" — atmospheric depth through layered slate tones,
   a single warm amber accent, glass-effect surfaces and ambient glow.
   ========================================================================== */

:root{
  /* Color */
  --background:        #0A0A0F;
  --background-alt:    #12121A;
  --foreground:         #FAFAFA;
  --muted:              #1A1A24;
  --muted-foreground:   #71717A;
  --accent:             #F59E0B;
  --accent-dim:         #C9820A;
  --accent-foreground:  #0A0A0F;
  --accent-muted:       rgba(245,158,11,0.15);
  --border:             rgba(255,255,255,0.08);
  --border-hover:       rgba(255,255,255,0.15);
  --card:               rgba(26,26,36,0.6);
  --card-solid:         #1A1A24;
  --ring:               #F59E0B;
  --danger:             #C75146;

  /* Type */
  --f-display: 'Sora', system-ui, sans-serif;
  --f-body: 'Manrope', system-ui, sans-serif;
  --f-mono: 'IBM Plex Mono', monospace;

  /* Layout */
  --maxw: 1152px;
  --gutter: clamp(24px, 5vw, 48px);

  /* Radius */
  --radius-sm:  6px;
  --radius-md:  8px;
  --radius-lg:  12px;
  --radius-xl:  16px;
  --radius-2xl: 24px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.3);
  --shadow-md: 0 4px 6px rgba(0,0,0,0.3);
  --shadow-lg: 0 10px 15px rgba(0,0,0,0.3);
  --shadow-xl: 0 20px 25px rgba(0,0,0,0.4);

  /* Glows */
  --glow-sm: 0 0 20px rgba(245,158,11,0.15);
  --glow-md: 0 0 40px rgba(245,158,11,0.2);
  --glow-lg: 0 0 60px rgba(245,158,11,0.25);
  --border-glow: 0 0 0 1px rgba(245,158,11,0.3), 0 0 20px rgba(245,158,11,0.15);
}

*,*::before,*::after{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }
body{
  margin:0;
  font-family: var(--f-body);
  background: var(--background);
  color: var(--foreground);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  position: relative;
}
img{ max-width:100%; display:block; }
a{ color:inherit; text-decoration:none; }
ul{ margin:0; padding:0; list-style:none; }
h1,h2,h3,h4{ font-family: var(--f-display); margin:0; line-height:1.1; font-weight:600; letter-spacing:-0.025em; }
p{ margin:0; }
button{ font-family:inherit; cursor:pointer; }

@media (prefers-reduced-motion: reduce){
  *{ animation-duration:0.01ms !important; animation-iteration-count:1 !important; transition-duration:0.01ms !important; scroll-behavior:auto !important; }
}

:focus-visible{ outline:2px solid var(--accent); outline-offset:3px; border-radius: var(--radius-sm); }

.wrap{ max-width: var(--maxw); margin:0 auto; padding:0 var(--gutter); }

/* ---------- ambient noise (whole-page atmosphere) ---------- */
body::before{
  content:"";
  position:fixed; inset:0; z-index:0; pointer-events:none;
  opacity:0.025; mix-blend-mode:overlay;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}
header, main, footer{ position:relative; z-index:1; }

/* ---------- eyebrow / coordinate labels ---------- */
.eyebrow{
  font-family: var(--f-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  display:flex;
  align-items:center;
  gap:10px;
  margin-bottom:14px;
}
.eyebrow::before{
  content:"";
  width:22px; height:1px;
  background: var(--accent);
  display:inline-block;
}

/* ---------- header ---------- */
.site-header{
  position: sticky; top:0; z-index:100;
  background: rgba(10,10,15,0.75);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.site-header .wrap{
  display:flex; align-items:center; justify-content:space-between;
  height:76px;
}
.logo{
  display:inline-flex; align-items:center;
  transition: transform 0.2s ease;
}
.logo:hover{
  transform: scale(1.02);
}
.logo-img{
  height:44px;
  width:auto;
  display:block;
  object-fit:contain;
}

.main-nav{ display:flex; align-items:center; gap:36px; }
.main-nav ul{ display:flex; gap:30px; }
.main-nav a{
  font-size:14px; font-weight:500; color: var(--muted-foreground);
  position:relative; padding:6px 0;
  transition: color .2s ease-out;
}
.main-nav a:hover{ color: var(--foreground); }
.main-nav a.active{ color: var(--foreground); }
.main-nav a.active::after{
  content:""; position:absolute; left:0; right:0; bottom:0; height:2px; background: var(--accent);
  box-shadow: var(--glow-sm);
}
.nav-cta{
  font-family: var(--f-mono);
  font-size:12.5px; letter-spacing:0.04em;
  background: var(--accent); color: var(--accent-foreground);
  padding:11px 20px; border-radius: var(--radius-lg);
  display:inline-flex; align-items:center; gap:8px;
  transition: filter .2s ease-out, box-shadow .2s ease-out, transform .2s ease-out;
  white-space:nowrap;
}
.nav-cta:hover{ filter:brightness(1.1); box-shadow: var(--glow-md); transform: translateY(-1px); }
.nav-cta:active{ transform: scale(0.98); }

.nav-toggle{
  display:none;
  width:40px; height:40px; flex:none;
  align-items:center; justify-content:center;
  background:transparent; border:1px solid var(--border); border-radius: var(--radius-md);
  color: var(--foreground); font-size:16px;
  transition: border-color .2s ease-out, color .2s ease-out;
}
.nav-toggle:hover{ border-color: var(--accent); color: var(--accent); }

/* ---------- buttons ---------- */
.btn{
  display:inline-flex; align-items:center; gap:10px;
  font-family: var(--f-display); font-size:14px; letter-spacing:0.01em; font-weight:600;
  padding:14px 28px; height:48px; border-radius: var(--radius-lg);
  border:1px solid transparent;
  transition: all .2s cubic-bezier(0.16, 1, 0.3, 1);
  cursor: pointer;
}
.btn:hover{
  transform: translateY(-1.5px);
}
.btn:active{ transform: translateY(-0.5px) scale(0.98); }
.btn-primary{ background: var(--accent); color: var(--accent-foreground); }
.btn-primary:hover{ filter:brightness(1.05); box-shadow: var(--glow-md); }
.btn-ghost{ background:transparent; border: 1px solid var(--border); color: var(--foreground); }
.btn-ghost:hover{ background: rgba(255,255,255,0.06); border-color: var(--accent); color: var(--foreground); }
.btn-outline{ background: transparent; border: 1px solid var(--border); color: var(--foreground); }
.btn-outline:hover{ background: rgba(255,255,255,0.04); border-color: var(--border-hover); }
.btn-block{ width:100%; justify-content:center; }
.btn-arrow{ transition: transform .2s ease-out; }
.btn:hover .btn-arrow{ transform: translateX(4px); }

/* ---------- section scaffolding ---------- */
section{ padding: clamp(64px, 9vw, 128px) 0; position:relative; }
.section-head{
  display:flex; justify-content:space-between; align-items:flex-end; gap:32px;
  margin-bottom:52px; flex-wrap:wrap;
}
.section-head h2{ font-size: clamp(30px, 4vw, 44px); max-width:640px; }
.section-head .lede{ max-width:360px; color: var(--muted-foreground); font-size:15px; padding-bottom:4px; }
p.lede, p{ color: inherit; }
section p:not(.eyebrow):not(.lede){ color: var(--muted-foreground); }
h2,h3,h4{ color: var(--foreground); }

/* elevated dark surface — the "layered slate" alternate tone between sections */
.surface-alt{ background: var(--background-alt); }

.divider{ height:1px; background: var(--border); }

/* ---------- ambient orbs (signature atmospheric glow) ---------- */
.hero, .page-hero, .cta-band, .product-feature{ overflow:hidden; }
.hero::before, .page-hero::before, .cta-band::before{
  content:"";
  position:absolute; z-index:0; pointer-events:none;
  width:600px; height:600px; border-radius:50%;
  background: radial-gradient(circle, rgba(245,158,11,0.10) 0%, transparent 70%);
  filter: blur(80px);
  top:-220px; left:50%; transform:translateX(-50%);
}
.page-hero::before{ left:10%; transform:none; width:480px; height:480px; top:-180px; }
.cta-band::before{ right:-160px; left:auto; top:50%; transform:translateY(-50%); width:500px; height:500px; }
@media (max-width:760px){
  .hero::before, .page-hero::before, .cta-band::before{ width:340px; height:340px; filter: blur(60px); }
}

/* ---------- hero ---------- */
.hero{
  background: var(--background);
  color: var(--foreground);
  padding-top: clamp(64px,10vw,110px);
  padding-bottom: 0;
  position:relative;
}
.hero-inner{
  display:grid; grid-template-columns: 1.1fr 0.9fr; gap:40px; align-items:center;
  position:relative; z-index:1; padding-bottom:70px;
}
.hero h1{
  font-size: clamp(38px, 5.4vw, 64px);
  max-width: 620px;
  color: var(--foreground);
}
.hero h1 em{
  font-style: normal; color: var(--accent);
}
.hero .sub{
  margin-top:22px; font-size:17px; max-width:480px; color: var(--muted-foreground);
}
.hero .cta-row{ display:flex; gap:14px; margin-top:36px; flex-wrap:wrap; }
.hero .stat-strip{
  display:grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-top: 64px;
  position: relative;
  z-index: 1;
}
.hero .stat{
  background: rgba(255, 255, 255, 0.015);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px 28px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: border-color .2s ease, background-color .2s ease, transform .2s ease;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}
.hero .stat:hover{
  border-color: var(--border-hover);
  background: rgba(255, 255, 255, 0.03);
  transform: translateY(-2px);
  box-shadow: 0 4px 20px rgba(0,0,0,0.15);
}
.hero .stat b{
  display: block;
  font-family: var(--f-display);
  font-size: clamp(16px, 1.8vw, 22px);
  font-weight: 700;
  color: var(--foreground);
  order: 2;
  margin-top: 8px;
  line-height: 1.25;
}
.hero .stat span{
  display: block;
  font-family: var(--f-mono);
  font-size: 10px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--muted-foreground);
  order: 1;
}

/* hero visual (photo composition, signature element) */
.hero-visual{ position:relative; z-index:1; width:100%; aspect-ratio: 1/1; max-width:460px; margin:0 auto; }
.hero-visual-main{
  position:absolute; inset:0 0 10% 0;
  border-radius: var(--radius-xl);
  overflow:hidden;
  border:1px solid var(--border-hover);
  box-shadow: var(--shadow-xl);
}
.hero-visual-main img{
  width:100%; height:100%; object-fit:cover; display:block;
  filter: grayscale(0.25) brightness(0.72) contrast(1.08);
}
.hero-visual-main::after{
  content:""; position:absolute; inset:0;
  background:
    linear-gradient(200deg, rgba(245,158,11,0.35) 0%, transparent 55%),
    linear-gradient(0deg, rgba(10,10,15,0.85) 0%, transparent 55%);
}
.hero-visual-accent{
  position:absolute; right:-24px; bottom:-24px; width:46%; aspect-ratio:1/1;
  border-radius: var(--radius-lg); overflow:hidden;
  border:1px solid var(--border-hover);
  box-shadow: var(--shadow-lg), 0 0 40px rgba(245,158,11,0.15);
  background: var(--muted);
}
.hero-visual-accent img{
  width:100%; height:100%; object-fit:cover; display:block;
  filter: grayscale(0.35) brightness(0.78) contrast(1.05);
}
.hero-visual-accent::after{
  content:""; position:absolute; inset:0;
  background: linear-gradient(160deg, rgba(245,158,11,0.3) 0%, transparent 60%);
}
@media (max-width:760px){
  .hero-visual-accent{ right:-14px; bottom:-14px; width:42%; }
}

/* ---------- page header (interior pages) ---------- */
.page-hero{
  background: var(--background); color: var(--foreground);
  padding: 150px 0 60px;
  position:relative;
}
.page-hero .wrap{ position:relative; z-index:1; }
.page-hero h1{ font-size: clamp(34px,5vw,54px); max-width:720px; color: var(--foreground); }
.page-hero .sub{ margin-top:18px; font-size:16px; max-width:560px; color: var(--muted-foreground); }
.crumb{ font-family:var(--f-mono); font-size:12px; color: var(--muted-foreground); margin-bottom:20px; letter-spacing:0.04em; }
.crumb a:hover{ color: var(--accent); }

/* ---------- cards (glass effect) ---------- */
.card-grid{ display:grid; gap:20px; }
.cols-4{ grid-template-columns: repeat(4,1fr); }
.cols-3{ grid-template-columns: repeat(3,1fr); }
.cols-2{ grid-template-columns: repeat(2,1fr); }

.card{
  background: var(--card);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding:32px 28px; position:relative;
  transition: background-color .3s ease-out, border-color .3s ease-out, transform .3s ease-out, box-shadow .3s ease-out;
}
a.card:hover, .card.is-interactive:hover{
  border-color: var(--border-hover);
  background: rgba(26,26,36,0.8);
  transform: scale(1.02);
  box-shadow: var(--shadow-lg);
}
.card .num{ font-family:var(--f-mono); font-size:12px; color: var(--muted-foreground); display:block; margin-bottom:18px; }
.card .icon{ width:36px; height:36px; margin-bottom:20px; color: var(--muted-foreground); stroke-width:1.5; }
.card h3{ font-size:18px; margin-bottom:10px; color: var(--foreground); }
.card p{ font-size:14px; color: var(--muted-foreground); }
.tags{ display:flex; gap:8px; flex-wrap:wrap; margin-top:16px; }
.tags span{
  font-family:var(--f-mono); font-size:10.5px; letter-spacing:0.02em;
  border:1px solid var(--border); padding:4px 9px; border-radius: var(--radius-full); color: var(--muted-foreground);
}
.card-link{
  margin-top:20px; display:inline-flex; align-items:center; gap:6px;
  font-family: var(--f-mono); font-size:12.5px; color: var(--foreground);
}
.card-link svg{ width:13px; height:13px; transition: transform .2s ease-out; }
.card:hover .card-link svg{ transform: translateX(3px); }

/* ---------- panel (elevated glass callout) ---------- */
.panel{
  position:relative;
  border:1px solid var(--border);
  border-radius: var(--radius-xl);
  padding:36px;
  background: var(--card);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

/* ---------- process / numbered steps ---------- */
.steps{ display:grid; grid-template-columns: repeat(4,1fr); gap:0; position:relative; }
.step{ padding:0 24px 0 0; position:relative; }
.step:not(:last-child)::after{
  content:""; position:absolute; top:16px; right:0; width:calc(100% - 48px); height:1px;
  background: repeating-linear-gradient(90deg, var(--border) 0 6px, transparent 6px 11px);
}
.step .idx{ font-family:var(--f-mono); font-size:13px; color: var(--accent); margin-bottom:16px; display:block; }
.step h4{ font-size:17px; margin-bottom:8px; color: var(--foreground); }
.step p{ font-size:13.5px; color: var(--muted-foreground); }

/* ---------- product feature (Data Spectra) ---------- */
.product-feature{
  background: var(--background-alt); color: var(--foreground);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: clamp(36px, 5vw, 64px);
  display:grid; grid-template-columns: 1fr 1fr; gap:56px; align-items:center;
  position:relative;
}
.product-feature::before{
  content:""; position:absolute; z-index:0; pointer-events:none;
  width:420px; height:420px; border-radius:50%; top:-140px; right:-120px;
  background: radial-gradient(circle, rgba(245,158,11,0.12) 0%, transparent 70%);
  filter: blur(70px);
}
.product-feature > *{ position:relative; z-index:1; }
.product-feature .badge{
  font-family:var(--f-mono); font-size:11px; letter-spacing:0.1em; text-transform:uppercase;
  color: var(--accent-foreground); background: var(--accent); padding:5px 11px; border-radius: var(--radius-full); display:inline-block; margin-bottom:20px;
}
.product-feature h3{ font-size: clamp(26px,3vw,34px); margin-bottom:16px; color: var(--foreground); }
.product-feature p{ color: var(--muted-foreground); }
.product-feature .feat-list{ margin-top:24px; display:grid; gap:12px; }
.product-feature .feat-list li{ display:flex; gap:12px; font-size:14.5px; color: rgba(250,250,250,0.8); align-items:flex-start; }
.product-feature .feat-list svg{ flex:none; width:16px; height:16px; margin-top:3px; color: var(--accent); }
.diagram-box{
  border:1px solid var(--border); border-radius: var(--radius-lg); padding:24px; background: rgba(255,255,255,0.02);
  font-family: var(--f-mono); font-size:12px;
}
.diagram-box .flow{ display:flex; flex-direction:column; gap:0; }
.diagram-box .flow-step{
  border:1px solid var(--border); padding:12px 14px; border-radius: var(--radius-sm); display:flex; justify-content:space-between; align-items:center;
  background: var(--muted); color: var(--foreground);
}
.diagram-box .flow-arrow{ text-align:center; color: var(--accent); padding:6px 0; font-size:13px; }
.diagram-box .flow-step .tag{ color: var(--accent); font-size:10px; }

/* ---------- logo / marquee strip ---------- */
.logo-strip{ display:flex; align-items:center; justify-content:space-between; flex-wrap:wrap; gap:28px; padding:36px 0; }
.logo-strip .lg{
  font-family:var(--f-mono); font-size:13px; letter-spacing:0.06em; color: var(--muted-foreground); text-transform:uppercase;
  border:1px dashed var(--border); border-radius: var(--radius-md); padding:10px 18px;
}

/* ---------- industry / client tiles ---------- */
.industry-card{ padding:34px 28px; }
.industry-card .icon-ring{
  width:52px; height:52px; border-radius:50%; border:1px solid var(--border);
  display:flex; align-items:center; justify-content:center; margin-bottom:22px; color: var(--muted-foreground);
  transition: color .3s ease-out, border-color .3s ease-out;
}
.industry-card:hover .icon-ring{ color: var(--accent); border-color: var(--accent-muted); }
.industry-card .icon-ring svg{ width:24px; height:24px; }

/* ---------- testimonial ---------- */
.testi{ padding:40px; border:1px solid var(--border); border-radius: var(--radius-lg); background: var(--card); backdrop-filter: blur(8px); display:flex; flex-direction:column; height:100%; }
.testi .quote-mark{ font-family:var(--f-display); font-size:44px; color: var(--accent); line-height:1; margin-bottom:12px; text-shadow: 0 0 24px rgba(245,158,11,0.35); }
.testi p.q{ font-size:15.5px; color: rgba(250,250,250,0.75); flex:1; }
.testi .who{ margin-top:24px; display:flex; align-items:center; gap:12px; }
.testi .avatar{ width:38px; height:38px; border-radius:50%; background: var(--muted); border:1px solid var(--border); display:flex; align-items:center; justify-content:center; font-family:var(--f-mono); font-size:12px; color: var(--foreground); }
.testi .who b{ display:block; font-size:13.5px; color: var(--foreground); }
.testi .who span{ font-size:12px; color: var(--muted-foreground); font-family: var(--f-mono); }

/* ---------- CTA band ---------- */
.cta-band{
  background: var(--background-alt); color: var(--foreground);
  padding: 80px 0; position:relative;
}
.cta-band .wrap{ display:flex; justify-content:space-between; align-items:center; gap:40px; flex-wrap:wrap; position:relative; z-index:1; }
.cta-band h2{ font-size: clamp(28px,3.4vw,40px); max-width:520px; color: var(--foreground); }

/* ---------- contact layout ---------- */
.contact-grid{ display:grid; grid-template-columns: 1.3fr 1fr; gap:56px; align-items:start; }

/* ---------- forms ---------- */
.form-grid{ display:grid; grid-template-columns:1fr 1fr; gap:20px; }
.field{ display:flex; flex-direction:column; gap:8px; margin-bottom:20px; }
.field.full{ grid-column: 1 / -1; }
label{ font-family: var(--f-mono); font-size:11.5px; letter-spacing:0.05em; text-transform:uppercase; color: var(--muted-foreground); }
input, select, textarea{
  font-family: var(--f-body); font-size:14.5px; padding:13px 14px; height:44px;
  border:1px solid var(--border); background: var(--card); backdrop-filter: blur(8px);
  border-radius: var(--radius-lg); color: var(--foreground);
  transition: border-color .2s ease-out, box-shadow .2s ease-out;
}
input::placeholder, textarea::placeholder{ color: var(--muted-foreground); }
input:focus, select:focus, textarea:focus{
  outline:none; border-color: rgba(245,158,11,0.5);
  box-shadow: 0 0 0 2px rgba(245,158,11,0.2), 0 0 20px rgba(245,158,11,0.1);
}
textarea{ resize:vertical; min-height:120px; height:auto; }

/* ---------- contact info panel ---------- */
.info-row{ display:flex; gap:16px; padding:20px 0; border-bottom:1px solid var(--border); }
.info-row svg{ width:20px; height:20px; flex:none; color: var(--muted-foreground); margin-top:2px; stroke-width:1.5; }
.info-row h4{ font-size:13px; font-family:var(--f-mono); text-transform:uppercase; letter-spacing:0.04em; margin-bottom:4px; color: var(--muted-foreground); }
.info-row p{ font-size:15px; color: var(--foreground); }

/* ---------- footer ---------- */
footer{ background: var(--background); color: var(--muted-foreground); padding-top:72px; border-top:1px solid var(--border); }
.footer-grid{ display:grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap:40px; padding-bottom:56px; }
.footer-grid h4{ color: var(--foreground); font-family: var(--f-mono); font-size:12px; letter-spacing:0.08em; text-transform:uppercase; margin-bottom:20px; }
.footer-grid ul{ display:grid; gap:12px; }
.footer-grid a{ font-size:14px; transition: color .2s ease-out; }
.footer-grid a:hover{ color: var(--accent); }
.footer-brand p{ font-size:14px; max-width:280px; margin-top:14px; color: var(--muted-foreground); }
.social-row{ display:flex; gap:12px; margin-top:22px; }
.social-row a{
  width:34px; height:34px; border:1px solid var(--border); border-radius:50%;
  display:flex; align-items:center; justify-content:center;
  transition: border-color .2s ease-out, color .2s ease-out;
}
.social-row a:hover{ border-color: var(--accent); color: var(--accent); }
.social-row svg{ width:15px; height:15px; }
.footer-bottom{
  border-top:1px solid var(--border); padding:22px 0; display:flex; justify-content:space-between;
  font-family: var(--f-mono); font-size:12px; color: rgba(113,113,122,0.7); flex-wrap:wrap; gap:10px;
}
.footer-bottom a:hover{ color: var(--accent); }

/* ---------- utility ---------- */
.mt-64{ margin-top:64px; }
.center{ text-align:center; }
.small{ font-size:13px; }

/* ---------- responsive ---------- */
@media (max-width: 980px){
  .hero-inner{ grid-template-columns:1fr; }
  .hero-visual{ max-width:340px; margin-top:20px; }
  .cols-4{ grid-template-columns: repeat(2,1fr); }
  .cols-3{ grid-template-columns: repeat(2,1fr); }
  .steps{ grid-template-columns: repeat(2,1fr); gap:36px 24px; }
  .step:nth-child(2)::after{ display:none; }
  .footer-grid{ grid-template-columns: 1fr 1fr; gap:36px 20px; }
  .product-feature{ grid-template-columns:1fr; }
  .form-grid{ grid-template-columns:1fr; }
  .contact-grid{ grid-template-columns:1fr; }
}
@media (max-width: 760px){
  .site-header .wrap{ flex-wrap:wrap; height:auto; min-height:76px; }
  .main-nav{
    order:3; width:100%; flex-direction:column; align-items:stretch; gap:0;
    max-height:0; overflow:hidden; opacity:0;
    transition: max-height .25s ease-out, opacity .2s ease-out;
  }
  .main-nav.nav-open{ max-height:420px; opacity:1; padding-bottom:20px; }
  .main-nav ul{ display:flex; flex-direction:column; gap:0; padding-top:8px; }
  .main-nav ul li{ border-bottom:1px solid var(--border); }
  .main-nav ul a{ display:block; padding:14px 2px; }
  .main-nav ul a.active::after{ display:none; }
  .nav-cta{ margin-top:16px; justify-content:center; }
  .nav-toggle{ display:flex; }
  .cols-4, .cols-3, .cols-2{ grid-template-columns: 1fr; }
  .steps{ grid-template-columns:1fr; }
  .step::after{ display:none !important; }
  .hero .stat-strip{ grid-template-columns: repeat(2, 1fr); gap: 14px; }
  .hero .stat{ padding: 18px; }
  .section-head{ flex-direction:column; align-items:flex-start; }
  .footer-grid{ grid-template-columns:1fr; }
  .cta-band .wrap{ flex-direction:column; align-items:flex-start; }
}

/* ---------- interactive contact form elements ---------- */
.form-loading {
  position: relative;
  opacity: 0.6;
  pointer-events: none;
}
.btn-submit {
  position: relative;
  min-height: 48px;
  transition: all 0.2s ease;
}
.btn-submit.loading-active {
  color: transparent !important;
  pointer-events: none;
}
.btn-submit.loading-active::after {
  content: "";
  position: absolute;
  width: 20px;
  height: 20px;
  top: calc(50% - 10px);
  left: calc(50% - 10px);
  border: 2px solid rgba(255,255,255,0.3);
  border-radius: 50%;
  border-top-color: var(--accent);
  animation: btn-spin 0.6s linear infinite;
}
@keyframes btn-spin {
  to { transform: rotate(360deg); }
}

.form-success-card {
  opacity: 0;
  transform: translateY(15px);
  transition: opacity 0.5s cubic-bezier(0.16, 1, 0.3, 1), transform 0.5s cubic-bezier(0.16, 1, 0.3, 1);
  padding: 40px 32px;
  border: 1px solid var(--border-hover);
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.02) 0%, rgba(255, 255, 255, 0.01) 100%);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  text-align: center;
  box-shadow: var(--glow-sm);
  display: none;
}
.form-success-card.active {
  display: block;
  opacity: 1;
  transform: translateY(0);
}
.form-success-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 24px;
  background: rgba(245, 158, 11, 0.08);
  color: var(--accent);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(245, 158, 11, 0.2);
  box-shadow: var(--glow-md);
}
.form-success-icon svg {
  width: 32px;
  height: 32px;
  stroke-width: 2.2;
}
.form-success-card h3 {
  font-family: var(--f-display);
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--foreground);
}
.form-success-card p {
  color: var(--muted-foreground);
  font-size: 15px;
  line-height: 1.6;
  max-width: 480px;
  margin: 0 auto 28px;
}

/* ---------- submissions console panel ---------- */
.submissions-panel {
  margin-top: 56px;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--card);
  padding: 32px;
  box-shadow: 0 4px 20px rgba(0,0,0,0.2);
}
.submissions-header-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 24px;
  border-bottom: 1px solid var(--border);
  padding-bottom: 16px;
}
.submissions-header-bar h3 {
  font-family: var(--f-display);
  font-size: 18px;
  font-weight: 600;
  color: var(--foreground);
}
.submissions-count {
  font-family: var(--f-mono);
  font-size: 12px;
  background: var(--border);
  padding: 3px 8px;
  border-radius: 20px;
  color: var(--muted-foreground);
}
.submissions-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
  max-height: 350px;
  overflow-y: auto;
  padding-right: 4px;
}
/* custom scrollbar */
.submissions-list::-webkit-scrollbar {
  width: 6px;
}
.submissions-list::-webkit-scrollbar-track {
  background: transparent;
}
.submissions-list::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: 3px;
}
.submission-card {
  background: rgba(255, 255, 255, 0.01);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 20px;
  position: relative;
  transition: border-color 0.2s, background-color 0.2s;
}
.submission-card:hover {
  border-color: var(--border-hover);
  background: rgba(255, 255, 255, 0.02);
}
.sub-meta-top {
  display: flex;
  justify-content: space-between;
  font-family: var(--f-mono);
  font-size: 12px;
  color: var(--muted-foreground);
  margin-bottom: 10px;
}
.sub-service-tag {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 11px;
  font-family: var(--f-mono);
  background: rgba(245, 158, 11, 0.08);
  border: 1px solid rgba(245, 158, 11, 0.15);
  color: var(--accent);
  margin-bottom: 12px;
  text-transform: uppercase;
  letter-spacing: 0.02em;
}
.sub-details-grid {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 6px 12px;
  font-size: 14px;
  margin-bottom: 12px;
}
.sub-label {
  color: var(--muted-foreground);
  font-weight: 500;
}
.sub-val {
  color: var(--foreground);
}
.sub-message-text {
  font-size: 14px;
  line-height: 1.5;
  background: rgba(0, 0, 0, 0.2);
  padding: 12px;
  border-radius: var(--radius-sm);
  border-left: 2px solid var(--border-hover);
  color: var(--foreground);
  white-space: pre-wrap;
}
.submission-delete-btn {
  background: transparent;
  border: none;
  color: var(--muted-foreground);
  cursor: pointer;
  padding: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 4px;
  transition: color 0.2s, background-color 0.2s;
}
.submission-delete-btn:hover {
  color: #ef4444;
  background: rgba(239, 68, 68, 0.1);
}
.no-submissions-msg {
  text-align: center;
  color: var(--muted-foreground);
  padding: 40px 0;
  font-size: 14px;
}
.clear-subs-btn {
  font-family: var(--f-mono);
  font-size: 11.5px;
  background: transparent;
  border: 1px solid var(--border);
  color: var(--muted-foreground);
  padding: 6px 12px;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all 0.2s;
}
.clear-subs-btn:hover {
  border-color: #ef4444;
  color: #ef4444;
  background: rgba(239, 68, 68, 0.05);
}

@media (max-width: 480px){
  .hero .stat-strip{ grid-template-columns: 1fr !important; }
}