/* ============================================================
   CellHub Billing — Landing CSS (2026-05-21 redesign)
   Loaded by: index.php, features.php, pricing.php, screenshots.php,
              and supplements the original style.css on legacy pages
              (contact.php, buy.php, change-ip.php, success.php) via
              the new nav.php / footer.php which use only ch- classes.
   ============================================================ */

:root{
  --bg:#ffffff;
  --bg-alt:#f8fafc;
  --bg-dark:#0b1220;
  --bg-darker:#020617;
  --primary:#0066ff;
  --primary-dark:#0052cc;
  --primary-light:#e6f0ff;
  --primary-rgb:0,102,255;
  --text:#0f172a;
  --text-muted:#475569;
  --text-light:#64748b;
  --border:#e2e8f0;
  --border-dark:#1e293b;
  --success:#10b981;
  --accent:#7c3aed;
  --accent2:#0ea5e9;
  --warning:#f59e0b;
  --shadow-sm:0 1px 2px rgba(15,23,42,.04);
  --shadow:0 4px 12px rgba(15,23,42,.06);
  --shadow-lg:0 14px 40px rgba(15,23,42,.10);
  --shadow-xl:0 24px 60px rgba(15,23,42,.16);
  --radius-sm:8px;
  --radius:12px;
  --radius-lg:16px;
  --radius-xl:24px;
  --container:1180px;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body.ch{
  margin:0;
  font-family:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;
  font-feature-settings:'cv11','ss01','ss03';
  color:var(--text);
  background:var(--bg);
  line-height:1.55;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}
body.ch a{color:inherit;text-decoration:none}
body.ch img{max-width:100%;display:block}
body.ch h1,body.ch h2,body.ch h3,body.ch h4{
  margin:0;
  letter-spacing:-0.025em;
  font-weight:800;
  color:var(--text);
  line-height:1.1;
}
body.ch h1{font-size:clamp(38px,5.6vw,68px);letter-spacing:-0.035em}
body.ch h2{font-size:clamp(28px,3.8vw,46px);letter-spacing:-0.03em}
body.ch h3{font-size:clamp(18px,1.8vw,24px)}
body.ch p{margin:0;color:var(--text-muted);font-size:16px;line-height:1.65}

.ch-container{max-width:var(--container);margin:0 auto;padding:0 24px}
.ch-grad-mesh{
  position:absolute;inset:0;z-index:-1;overflow:hidden;
  background:
    radial-gradient(60% 50% at 15% 0%, rgba(0,102,255,.10), transparent 60%),
    radial-gradient(50% 50% at 95% 10%, rgba(124,58,237,.08), transparent 60%),
    radial-gradient(40% 40% at 50% 90%, rgba(14,165,233,.06), transparent 70%);
}

/* ============ NAV ============ */
.ch-nav{
  position:sticky;top:0;z-index:50;
  background:rgba(255,255,255,.85);
  backdrop-filter:saturate(180%) blur(14px);
  -webkit-backdrop-filter:saturate(180%) blur(14px);
  border-bottom:1px solid var(--border);
}
.ch-nav-inner{
  max-width:var(--container);margin:0 auto;padding:0 24px;
  height:64px;display:flex;align-items:center;justify-content:space-between;gap:24px;
}
.ch-logo{display:flex;align-items:center;gap:10px;font-weight:700;color:var(--text);font-size:17px}
.ch-logo img{height:30px;width:30px;object-fit:contain}
.ch-logo strong{font-weight:800;color:var(--primary)}
.ch-nav-links{display:flex;align-items:center;gap:4px;list-style:none;padding:0;margin:0}
.ch-nav-links a{
  display:inline-flex;align-items:center;gap:6px;
  padding:8px 14px;border-radius:8px;
  font-size:14px;font-weight:500;color:var(--text-muted);
  transition:color .15s, background .15s;
  position:relative;
}
.ch-nav-links a:hover{color:var(--text);background:var(--bg-alt)}
.ch-nav-links a.active{color:var(--text)}
.ch-nav-links a.active::after{
  content:'';position:absolute;left:14px;right:14px;bottom:0;
  height:2px;background:var(--primary);border-radius:2px;
}
.ch-pill-new{
  display:inline-block;padding:2px 7px;border-radius:99px;
  background:var(--accent);color:#fff;
  font-size:10px;font-weight:700;letter-spacing:.04em;text-transform:uppercase;
  margin-left:6px;
}
.ch-pill-demo{
  display:inline-block;padding:5px 12px;border-radius:8px;
  background:linear-gradient(135deg,#10b981,#0ea5e9);
  color:#fff;font-size:13px;font-weight:600;
}
.ch-nav-actions{display:flex;align-items:center;gap:10px}
.ch-btn{
  display:inline-flex;align-items:center;gap:8px;
  padding:10px 18px;border-radius:8px;font-size:14px;font-weight:600;
  border:1px solid transparent;cursor:pointer;
  transition:all .15s ease;text-decoration:none;
  font-family:inherit;
}
.ch-btn-primary{background:var(--text);color:#fff}
.ch-btn-primary:hover{background:#1e293b;transform:translateY(-1px);box-shadow:var(--shadow)}
.ch-btn-secondary{background:#fff;color:var(--text);border-color:var(--border)}
.ch-btn-secondary:hover{border-color:var(--text);background:var(--bg-alt)}
.ch-btn-blue{background:var(--primary);color:#fff}
.ch-btn-blue:hover{background:var(--primary-dark);transform:translateY(-1px);box-shadow:0 6px 20px rgba(var(--primary-rgb),.30)}
.ch-btn-ghost{background:transparent;color:var(--text);border-color:transparent}
.ch-btn-ghost:hover{background:var(--bg-alt)}
.ch-btn-lg{padding:14px 24px;font-size:15px;border-radius:10px}
.ch-btn .arrow{transition:transform .15s}
.ch-btn:hover .arrow{transform:translateX(3px)}
.ch-hamburger{display:none;background:none;border:none;font-size:18px;cursor:pointer;color:var(--text);padding:8px}

@media (max-width:900px){
  .ch-nav-links{
    position:fixed;top:64px;left:0;right:0;
    flex-direction:column;align-items:stretch;
    background:#fff;border-bottom:1px solid var(--border);
    padding:12px 16px;gap:2px;
    transform:translateY(-110%);transition:transform .25s ease;
    box-shadow:var(--shadow-lg);
  }
  .ch-nav-links.open{transform:translateY(0)}
  .ch-nav-links a{padding:12px 14px}
  .ch-hamburger{display:inline-flex}
  .ch-nav-actions .ch-btn:not(.ch-btn-blue){display:none}
}

/* ============ SECTIONS / HEADERS ============ */
.ch-section{padding:96px 0;position:relative}
.ch-section-alt{background:var(--bg-alt)}
.ch-section-dark{background:var(--bg-dark);color:#e2e8f0}
.ch-section-dark h1,.ch-section-dark h2,.ch-section-dark h3{color:#fff}
.ch-section-dark p{color:#94a3b8}
.ch-eyebrow{
  display:inline-block;
  font-size:12px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;
  color:var(--primary);
  padding:6px 12px;border-radius:99px;background:var(--primary-light);
  margin-bottom:16px;
}
.ch-eyebrow.on-dark{background:rgba(255,255,255,.08);color:#60a5fa}
.ch-section-head{text-align:center;max-width:760px;margin:0 auto 64px}
.ch-section-head.left{text-align:left;margin-left:0}
.ch-section-head p{font-size:18px;margin-top:18px;line-height:1.7;color:var(--text-light)}

/* ============ HERO ============ */
.ch-hero{
  position:relative;padding:96px 0 120px;overflow:hidden;
  background:linear-gradient(180deg,#fff 0%,#fbfcff 60%,#f5f8ff 100%);
}
.ch-hero-grid{
  display:grid;grid-template-columns:1.05fr .95fr;gap:64px;align-items:center;
}
.ch-hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px 6px 6px;border-radius:99px;
  background:#fff;border:1px solid var(--border);
  font-size:13px;font-weight:600;color:var(--text-muted);
  box-shadow:var(--shadow-sm);
  margin-bottom:28px;
}
.ch-hero-badge .pill{
  background:var(--primary);color:#fff;padding:3px 9px;border-radius:99px;
  font-size:11px;font-weight:700;letter-spacing:.04em;text-transform:uppercase;
}
.ch-hero h1{margin-bottom:24px}
.ch-hero h1 .grad{
  background:linear-gradient(135deg,var(--primary) 0%,var(--accent) 100%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.ch-hero p.lead{font-size:20px;line-height:1.55;color:var(--text-muted);margin-bottom:36px;max-width:540px}
.ch-hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:40px}
.ch-hero-trust{
  display:flex;flex-wrap:wrap;gap:24px;align-items:center;
  font-size:13px;color:var(--text-light);
}
.ch-hero-trust .item{display:inline-flex;align-items:center;gap:6px}
.ch-hero-trust i{color:var(--success)}

@media (max-width:900px){
  .ch-hero-grid{grid-template-columns:1fr;gap:48px}
  .ch-hero{padding:64px 0 80px}
}

/* ============ DASHBOARD MOCKUP ============ */
.ch-dash{
  position:relative;
  background:#fff;border:1px solid var(--border);border-radius:var(--radius-lg);
  box-shadow:var(--shadow-xl);
  padding:18px;
  transform:perspective(1400px) rotateY(-3deg) rotateX(2deg);
  transition:transform .4s ease;
}
.ch-dash:hover{transform:perspective(1400px) rotateY(0deg) rotateX(0deg)}
.ch-dash::before{
  content:'';position:absolute;inset:-30px;z-index:-1;
  background:radial-gradient(60% 60% at 50% 50%,rgba(0,102,255,.12),transparent 70%);
  border-radius:inherit;
}
.ch-dash-bar{
  display:flex;align-items:center;gap:6px;padding-bottom:14px;border-bottom:1px solid var(--border);margin-bottom:16px;
}
.ch-dash-bar .dot{width:11px;height:11px;border-radius:99px;background:#e2e8f0}
.ch-dash-bar .dot.r{background:#ef4444}.ch-dash-bar .dot.y{background:#f59e0b}.ch-dash-bar .dot.g{background:#10b981}
.ch-dash-bar .url{margin-left:14px;padding:5px 14px;background:var(--bg-alt);border-radius:6px;font-size:12px;color:var(--text-light);font-family:'JetBrains Mono','SF Mono',Menlo,monospace}
.ch-dash-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-bottom:14px}
.ch-stat-card{
  background:linear-gradient(135deg,#fff,#fbfcff);
  border:1px solid var(--border);border-radius:var(--radius);
  padding:14px 16px;
}
.ch-stat-card .label{font-size:11px;font-weight:600;color:var(--text-light);text-transform:uppercase;letter-spacing:.08em;margin-bottom:8px}
.ch-stat-card .value{font-size:24px;font-weight:800;color:var(--text);letter-spacing:-0.02em}
.ch-stat-card .delta{display:inline-flex;align-items:center;gap:3px;font-size:12px;font-weight:600;color:var(--success);margin-top:2px}
.ch-stat-card .delta.neg{color:#ef4444}

.ch-dash-row{
  background:linear-gradient(135deg,#fff,#fafbfd);
  border:1px solid var(--border);border-radius:var(--radius);
  padding:14px 16px;display:flex;align-items:center;justify-content:space-between;font-size:13px;
}
.ch-dash-row + .ch-dash-row{margin-top:8px}
.ch-dash-row .left{display:flex;align-items:center;gap:10px}
.ch-dash-row .av{
  width:32px;height:32px;border-radius:99px;
  background:linear-gradient(135deg,#60a5fa,#a78bfa);
  color:#fff;font-weight:700;font-size:12px;display:flex;align-items:center;justify-content:center;
}
.ch-dash-row .av.g{background:linear-gradient(135deg,#34d399,#10b981)}
.ch-dash-row .av.o{background:linear-gradient(135deg,#fb923c,#f97316)}
.ch-dash-row .pill-live{
  font-size:10px;font-weight:700;padding:2px 8px;border-radius:99px;
  background:#dcfce7;color:#166534;letter-spacing:.04em;text-transform:uppercase;
}
.ch-dash-row .pill-ring{background:#fef9c3;color:#854d0e}
.ch-dash-row .dur{color:var(--text-light);font-family:'JetBrains Mono',monospace}

/* live pulse */
.ch-pulse{
  position:relative;display:inline-block;width:8px;height:8px;border-radius:99px;background:var(--success);margin-right:6px;
}
.ch-pulse::after{
  content:'';position:absolute;inset:-3px;border-radius:99px;background:var(--success);opacity:.35;
  animation:chPulse 1.6s ease-out infinite;
}
@keyframes chPulse{
  0%{transform:scale(1);opacity:.4}
  100%{transform:scale(2.2);opacity:0}
}

/* ============ TRUST STRIP ============ */
.ch-trust{
  padding:36px 0;
  border-top:1px solid var(--border);border-bottom:1px solid var(--border);
}
.ch-trust .hint{
  text-align:center;font-size:12px;font-weight:600;color:var(--text-light);
  text-transform:uppercase;letter-spacing:.14em;margin-bottom:24px;
}
.ch-trust-row{
  display:grid;grid-template-columns:repeat(6,1fr);align-items:center;gap:36px;opacity:.6;
}
.ch-trust-row .brand{
  font-weight:800;letter-spacing:-.01em;font-size:18px;color:var(--text-light);text-align:center;
}
@media (max-width:900px){.ch-trust-row{grid-template-columns:repeat(3,1fr);gap:24px}}

/* ============ FEATURES GRID ============ */
.ch-feat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
@media (max-width:900px){.ch-feat-grid{grid-template-columns:repeat(2,1fr)}}
@media (max-width:600px){.ch-feat-grid{grid-template-columns:1fr}}
.ch-feat{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius-lg);
  padding:28px 24px;transition:all .25s ease;
}
.ch-feat:hover{
  transform:translateY(-3px);border-color:rgba(var(--primary-rgb),.4);
  box-shadow:0 14px 40px rgba(15,23,42,.08);
}
.ch-feat-icon{
  width:44px;height:44px;border-radius:var(--radius);
  display:flex;align-items:center;justify-content:center;
  font-size:18px;color:#fff;margin-bottom:18px;
  background:linear-gradient(135deg,var(--primary),#3b82f6);
}
.ch-feat-icon.v{background:linear-gradient(135deg,#7c3aed,#a855f7)}
.ch-feat-icon.g{background:linear-gradient(135deg,#10b981,#22c55e)}
.ch-feat-icon.o{background:linear-gradient(135deg,#f97316,#fb923c)}
.ch-feat-icon.p{background:linear-gradient(135deg,#7c3aed,#ec4899)}
.ch-feat-icon.r{background:linear-gradient(135deg,#ef4444,#f43f5e)}
.ch-feat-icon.c{background:linear-gradient(135deg,#0ea5e9,#06b6d4)}
.ch-feat-icon.k{background:linear-gradient(135deg,#0f172a,#334155)}
.ch-feat h3{margin-bottom:8px;font-size:18px}
.ch-feat p{font-size:14px;line-height:1.6;color:var(--text-muted)}

/* ============ BIG STATS ============ */
.ch-stats-row{
  display:grid;grid-template-columns:repeat(4,1fr);gap:24px;
}
@media (max-width:900px){.ch-stats-row{grid-template-columns:repeat(2,1fr);gap:32px}}
.ch-bigstat{text-align:center}
.ch-bigstat .n{
  font-size:clamp(40px,5vw,64px);font-weight:800;letter-spacing:-0.035em;color:var(--text);line-height:1;
}
.ch-bigstat .n .plus{color:var(--primary);margin-left:2px}
.ch-bigstat .l{font-size:14px;font-weight:600;color:var(--text-light);margin-top:8px}

.ch-section-dark .ch-bigstat .n{color:#fff}
.ch-section-dark .ch-bigstat .l{color:#94a3b8}
.ch-section-dark .ch-bigstat .n .plus{
  background:linear-gradient(135deg,#60a5fa,#a78bfa);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}

/* ============ HIGHLIGHT (visual feature split) ============ */
.ch-highlight{display:grid;grid-template-columns:1fr 1fr;gap:80px;align-items:center}
.ch-highlight.reverse{direction:rtl}
.ch-highlight.reverse > *{direction:ltr}
@media (max-width:900px){.ch-highlight{grid-template-columns:1fr;gap:48px}.ch-highlight.reverse{direction:ltr}}
.ch-highlight h2{margin-bottom:20px}
.ch-highlight p{font-size:17px;line-height:1.7;margin-bottom:24px}
.ch-checklist{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:12px}
.ch-checklist li{display:flex;align-items:flex-start;gap:12px;font-size:15px;color:var(--text-muted)}
.ch-checklist li i{color:var(--success);font-size:18px;margin-top:1px;flex-shrink:0}
.ch-checklist li b{color:var(--text);font-weight:600;margin-right:4px}

.ch-visual{
  background:linear-gradient(135deg,#fff,#fafbfd);
  border:1px solid var(--border);border-radius:var(--radius-lg);
  padding:22px;box-shadow:var(--shadow-lg);
}
.ch-visual.dark{background:linear-gradient(135deg,#0f172a,#1e293b);border-color:#1e293b}
.ch-visual.dark .row{background:#1e293b;color:#cbd5e1;border-color:#334155}

/* ============ PRICING ============ */
.ch-price-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;max-width:1140px;margin:0 auto}
@media (max-width:900px){.ch-price-grid{grid-template-columns:1fr;max-width:480px}}
.ch-price{
  position:relative;background:#fff;border:1px solid var(--border);
  border-radius:var(--radius-lg);padding:36px 30px;
  display:flex;flex-direction:column;
  transition:all .2s ease;
}
.ch-price:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.ch-price.featured{
  border-color:var(--primary);border-width:2px;
  box-shadow:0 16px 48px rgba(var(--primary-rgb),.18);
  transform:translateY(-6px);
}
.ch-price.featured:hover{transform:translateY(-10px)}
.ch-price .pop-badge{
  position:absolute;top:-13px;left:50%;transform:translateX(-50%);
  background:linear-gradient(135deg,var(--primary),var(--accent));
  color:#fff;font-size:11px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;
  padding:6px 14px;border-radius:99px;
  box-shadow:0 6px 20px rgba(var(--primary-rgb),.30);
}
.ch-price h3{font-size:22px;margin-bottom:6px}
.ch-price .desc{font-size:13px;color:var(--text-light);margin-bottom:24px;min-height:38px}
.ch-price .amount{display:flex;align-items:baseline;gap:4px;margin-bottom:28px;padding-bottom:24px;border-bottom:1px solid var(--border)}
.ch-price .amount .d{font-size:24px;font-weight:600;color:var(--text-light)}
.ch-price .amount .n{font-size:56px;font-weight:800;letter-spacing:-0.03em;color:var(--text);line-height:1}
.ch-price .amount .per{font-size:14px;color:var(--text-light);margin-left:6px}
.ch-price ul{list-style:none;padding:0;margin:0 0 32px;display:flex;flex-direction:column;gap:11px;flex:1}
.ch-price ul li{display:flex;align-items:flex-start;gap:10px;font-size:14px;color:var(--text-muted);line-height:1.5}
.ch-price ul li i{color:var(--success);margin-top:3px;font-size:13px;flex-shrink:0}
.ch-price ul li b{color:var(--text);font-weight:600}
.ch-price ul li .tag{
  font-size:10px;font-weight:700;padding:2px 6px;border-radius:99px;letter-spacing:.04em;text-transform:uppercase;
  background:var(--primary-light);color:var(--primary);margin-left:6px;
}
.ch-price ul li .tag.v{background:#ede9fe;color:var(--accent)}
.ch-price ul li .tag.o{background:#fed7aa;color:#9a3412}
.ch-price .price-cta{width:100%;justify-content:center}

/* ============ HOW IT WORKS ============ */
.ch-steps{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;counter-reset:step}
@media (max-width:900px){.ch-steps{grid-template-columns:1fr}}
.ch-step{
  position:relative;background:#fff;border:1px solid var(--border);
  border-radius:var(--radius-lg);padding:32px 28px;counter-increment:step;
}
.ch-step .num{
  position:absolute;top:-22px;left:28px;
  width:44px;height:44px;border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  background:var(--text);color:#fff;font-weight:800;font-size:18px;
  box-shadow:0 8px 24px rgba(15,23,42,.12);
}
.ch-step h3{margin:14px 0 8px;font-size:19px}
.ch-step p{font-size:15px;line-height:1.6}

.ch-codeblock{
  background:#0b1220;color:#e2e8f0;
  border-radius:var(--radius-lg);padding:24px 28px;
  font-family:'JetBrains Mono','SF Mono',Menlo,monospace;font-size:14px;line-height:1.7;
  overflow-x:auto;margin-top:48px;
  border:1px solid #1e293b;
  position:relative;
}
.ch-codeblock::before{
  content:'';position:absolute;top:16px;left:16px;
  width:46px;height:10px;background-image:radial-gradient(circle,#ef4444 3px,transparent 3px),radial-gradient(circle,#f59e0b 3px,transparent 3px),radial-gradient(circle,#10b981 3px,transparent 3px);
  background-position:0 50%,16px 50%,32px 50%;background-size:10px 10px;background-repeat:no-repeat;
}
.ch-codeblock pre{margin:0;padding-top:24px;white-space:pre-wrap;word-break:break-word}
.ch-codeblock .c{color:#64748b}
.ch-codeblock .k{color:#60a5fa}
.ch-codeblock .s{color:#34d399}

/* ============ FAQ ============ */
.ch-faq{max-width:780px;margin:0 auto;display:flex;flex-direction:column;gap:12px}
.ch-faq-item{
  border:1px solid var(--border);border-radius:var(--radius);background:#fff;overflow:hidden;
  transition:border-color .2s, box-shadow .2s;
}
.ch-faq-item.open{border-color:rgba(var(--primary-rgb),.4);box-shadow:var(--shadow)}
.ch-faq-q{
  width:100%;background:none;border:none;padding:18px 22px;
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  font-size:15px;font-weight:600;color:var(--text);cursor:pointer;
  font-family:inherit;text-align:left;
}
.ch-faq-q .chev{
  flex-shrink:0;width:24px;height:24px;display:flex;align-items:center;justify-content:center;
  background:var(--bg-alt);border-radius:99px;color:var(--text-light);font-size:12px;transition:transform .2s;
}
.ch-faq-item.open .ch-faq-q .chev{transform:rotate(180deg);background:var(--primary-light);color:var(--primary)}
.ch-faq-a{
  max-height:0;overflow:hidden;transition:max-height .3s ease;
}
.ch-faq-a-inner{padding:0 22px 18px;font-size:14px;color:var(--text-muted);line-height:1.7}
.ch-faq-item.open .ch-faq-a{max-height:400px}

/* ============ CTA SECTION ============ */
.ch-cta{
  position:relative;overflow:hidden;
  background:linear-gradient(135deg,#0b1220 0%,#1e1b4b 100%);
  border-radius:var(--radius-xl);
  padding:72px 48px;text-align:center;color:#fff;
}
.ch-cta::before{
  content:'';position:absolute;inset:-50%;z-index:0;
  background:
    radial-gradient(40% 40% at 20% 20%,rgba(124,58,237,.5),transparent 60%),
    radial-gradient(35% 35% at 80% 80%,rgba(0,102,255,.4),transparent 60%);
}
.ch-cta > *{position:relative;z-index:1}
.ch-cta h2{color:#fff;margin-bottom:14px}
.ch-cta p{font-size:18px;color:#cbd5e1;max-width:540px;margin:0 auto 30px}

/* ============ FOOTER ============ */
.ch-footer{
  background:var(--bg-dark);color:#94a3b8;padding:64px 0 28px;
}
.ch-footer-grid{
  max-width:var(--container);margin:0 auto;padding:0 24px;
  display:grid;grid-template-columns:1.4fr repeat(3,1fr);gap:48px;
}
@media (max-width:900px){.ch-footer-grid{grid-template-columns:1fr 1fr;gap:36px}}
@media (max-width:600px){.ch-footer-grid{grid-template-columns:1fr;gap:32px}}
.ch-footer-brand .logo{display:flex;align-items:center;gap:10px;color:#fff;font-weight:700;font-size:18px;margin-bottom:14px}
.ch-footer-brand .logo img{height:32px;width:32px;object-fit:contain}
.ch-footer-brand .logo strong{font-weight:800;color:#60a5fa}
.ch-footer-brand p{font-size:14px;line-height:1.7;max-width:340px;color:#94a3b8}
.ch-footer-col h4{font-size:13px;font-weight:700;color:#fff;text-transform:uppercase;letter-spacing:.08em;margin-bottom:18px}
.ch-footer-col ul{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:11px}
.ch-footer-col ul a{font-size:14px;color:#94a3b8;transition:color .15s}
.ch-footer-col ul a:hover{color:#fff}
.ch-footer-bottom{
  max-width:var(--container);margin:48px auto 0;padding:24px 24px 0;
  border-top:1px solid #1e293b;
  display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:14px;
  font-size:13px;color:#64748b;
}

/* ============ FEATURES PAGE — CATEGORY SECTIONS ============ */
.ch-feat-cat{margin-bottom:64px}
.ch-feat-cat-head{display:flex;align-items:center;gap:14px;margin-bottom:24px;padding-bottom:18px;border-bottom:1px solid var(--border)}
.ch-feat-cat-head .icon{
  width:48px;height:48px;border-radius:12px;
  display:flex;align-items:center;justify-content:center;font-size:20px;color:#fff;flex-shrink:0;
}
.ch-feat-cat-head h2{font-size:26px;margin:0}
.ch-feat-cat-list{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
@media (max-width:900px){.ch-feat-cat-list{grid-template-columns:repeat(2,1fr)}}
@media (max-width:600px){.ch-feat-cat-list{grid-template-columns:1fr}}
.ch-feat-cat-item{
  display:flex;gap:14px;
  background:#fff;border:1px solid var(--border);border-radius:var(--radius);
  padding:18px;transition:border-color .2s, box-shadow .2s;
}
.ch-feat-cat-item:hover{border-color:rgba(var(--primary-rgb),.35);box-shadow:var(--shadow)}
.ch-feat-cat-item .check{
  width:24px;height:24px;border-radius:99px;background:var(--primary-light);color:var(--primary);
  display:flex;align-items:center;justify-content:center;flex-shrink:0;font-size:12px;
}
.ch-feat-cat-item h4{font-size:15px;font-weight:700;color:var(--text);margin:0 0 4px}
.ch-feat-cat-item p{font-size:13px;color:var(--text-light);line-height:1.55}

/* ============ WHAT'S NEW BLOCK ============ */
.ch-whats-new{
  background:linear-gradient(135deg,#fff7ed,#fef3c7);
  border:1px solid #fdba74;border-radius:var(--radius-xl);
  padding:36px;
}
.ch-whats-new .head{display:flex;align-items:center;gap:12px;margin-bottom:8px}
.ch-whats-new .head i{font-size:22px;color:#f97316}
.ch-whats-new h2{color:#9a3412}
.ch-whats-new > p{color:#9a3412;margin-bottom:24px;font-size:14px}
.ch-whats-new-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:14px}
.ch-whats-card{background:#fff;border:1px solid #fed7aa;border-radius:var(--radius);padding:16px;position:relative}
.ch-whats-card.hot{border-color:var(--accent);border-width:2px}
.ch-whats-card i{font-size:18px;display:block;margin-bottom:8px}
.ch-whats-card h4{font-size:14px;margin:0 0 4px}
.ch-whats-card p{font-size:12px;line-height:1.55;color:var(--text-muted);margin:0}
.ch-whats-card .v{
  display:inline-block;background:var(--accent);color:#fff;
  font-size:9px;font-weight:700;padding:2px 6px;border-radius:4px;margin-left:6px;letter-spacing:.04em;
}

/* ============ SCREENSHOTS ============ */
.ch-tabs{display:flex;justify-content:center;gap:6px;margin-bottom:40px;flex-wrap:wrap}
.ch-tab{
  display:inline-flex;align-items:center;gap:8px;
  padding:11px 22px;border-radius:10px;
  background:transparent;border:1px solid var(--border);
  font-size:14px;font-weight:600;color:var(--text-muted);cursor:pointer;
  transition:all .15s;font-family:inherit;
}
.ch-tab.active{background:var(--text);color:#fff;border-color:var(--text)}
.ch-tab:hover:not(.active){border-color:var(--text);color:var(--text)}
.ch-tab .count{
  font-size:11px;padding:2px 7px;border-radius:99px;
  background:var(--bg-alt);color:var(--text-light);font-weight:700;
}
.ch-tab.active .count{background:rgba(255,255,255,.16);color:#fff}

.ch-screens-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:20px}
.ch-screen-thumb{
  cursor:pointer;border-radius:var(--radius);overflow:hidden;
  border:1px solid var(--border);background:var(--bg-alt);
  aspect-ratio:16/10;position:relative;transition:all .25s;
}
.ch-screen-thumb:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:rgba(var(--primary-rgb),.4)}
.ch-screen-thumb img{width:100%;height:100%;object-fit:cover;object-position:top center;display:block;transition:transform .4s}
.ch-screen-thumb:hover img{transform:scale(1.03)}
.ch-screen-thumb .overlay{
  position:absolute;inset:0;background:linear-gradient(180deg,transparent 60%,rgba(11,18,32,.7));
  display:flex;align-items:flex-end;padding:16px;opacity:0;transition:opacity .25s;
}
.ch-screen-thumb:hover .overlay{opacity:1}
.ch-screen-thumb .overlay span{color:#fff;font-size:13px;font-weight:600;display:inline-flex;align-items:center;gap:6px}

.ch-lightbox{display:none;position:fixed;inset:0;background:rgba(2,6,23,.94);z-index:9999;align-items:center;justify-content:center;padding:24px;flex-direction:column}
.ch-lightbox.open{display:flex}
.ch-lightbox img{max-width:96vw;max-height:88vh;border-radius:8px;box-shadow:0 24px 80px rgba(0,0,0,.8)}
.ch-lightbox .close{position:fixed;top:18px;right:24px;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.16);color:#fff;width:42px;height:42px;border-radius:99px;font-size:18px;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:.2s}
.ch-lightbox .close:hover{background:rgba(255,255,255,.16)}
.ch-lightbox .nav-btn{position:fixed;top:50%;transform:translateY(-50%);background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);color:#fff;width:48px;height:48px;border-radius:99px;font-size:18px;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:.2s}
.ch-lightbox .nav-btn:hover{background:rgba(255,255,255,.16)}
.ch-lightbox .nav-btn.prev{left:20px}.ch-lightbox .nav-btn.next{right:20px}
.ch-lightbox .counter{color:#94a3b8;font-size:13px;margin-top:14px;font-family:'JetBrains Mono',monospace}

.ch-empty{text-align:center;color:#94a3b8;padding:64px 20px;background:var(--bg-alt);border-radius:var(--radius);font-size:14px;border:1px dashed var(--border)}

/* ============ INFO BOX ============ */
.ch-info-card{
  background:var(--bg-alt);border:1px solid var(--border);
  border-radius:var(--radius-xl);padding:36px;margin-bottom:40px;
}
.ch-info-card h3{font-size:18px;margin-bottom:22px;display:flex;align-items:center;gap:10px}
.ch-info-card h3 i{color:var(--primary)}
.ch-info-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:20px}
.ch-info-grid .item .k{font-size:12px;color:var(--text-light);text-transform:uppercase;letter-spacing:.06em;font-weight:600;margin-bottom:4px}
.ch-info-grid .item .v{font-size:14px;font-weight:600;color:var(--text)}

/* ============ RELEASE BANNER ============ */
.ch-release-banner{
  background:linear-gradient(90deg,#0b1220,#1e1b4b);
  color:#fff;padding:11px 16px;text-align:center;font-size:14px;font-weight:500;
}
.ch-release-banner b{color:#fbbf24}
.ch-release-banner a{
  color:#fff;text-decoration:underline;font-weight:600;margin-left:8px;
  text-underline-offset:3px;text-decoration-thickness:1px;
}

/* ============ SCROLL ANIMATION ============ */
.ch-reveal{opacity:0;transform:translateY(28px);transition:opacity .7s ease, transform .7s ease}
.ch-reveal.in{opacity:1;transform:translateY(0)}

/* ============ RESPONSIVE TWEAKS ============ */
@media (max-width:600px){
  body.ch h1{font-size:36px}
  body.ch h2{font-size:30px}
  .ch-section{padding:64px 0}
  .ch-hero{padding:48px 0 64px}
  .ch-cta{padding:48px 24px}
  .ch-dash{padding:14px;transform:none}
  .ch-feat{padding:22px 18px}
}

/* ============================================================
   AUTODIALER LANDING — additions on top of base landing.css
   ============================================================ */

/* MODES GRID */
.ch-modes-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
@media(max-width:1024px){.ch-modes-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:600px){.ch-modes-grid{grid-template-columns:1fr}}
.ch-mode{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius-lg);
  padding:24px;transition:all .25s ease;display:flex;flex-direction:column;
}
.ch-mode:hover{transform:translateY(-4px);border-color:rgba(var(--primary-rgb),.35);box-shadow:var(--shadow-lg)}
.ch-mode .mode-head{display:flex;align-items:center;gap:12px;margin-bottom:14px}
.ch-mode .mode-num{
  font-family:'JetBrains Mono',monospace;font-size:11px;font-weight:700;
  color:var(--text-light);letter-spacing:.08em;text-transform:uppercase;
  padding:4px 10px;background:var(--bg-alt);border-radius:99px;border:1px solid var(--border);
}
.ch-mode .mode-icon{
  width:36px;height:36px;border-radius:10px;
  display:flex;align-items:center;justify-content:center;
  font-size:15px;color:#fff;
  background:linear-gradient(135deg,var(--primary),#3b82f6);
}
.ch-mode .mode-icon.v{background:linear-gradient(135deg,#7c3aed,#a855f7)}
.ch-mode .mode-icon.g{background:linear-gradient(135deg,#10b981,#22c55e)}
.ch-mode .mode-icon.o{background:linear-gradient(135deg,#f97316,#fb923c)}
.ch-mode .mode-icon.p{background:linear-gradient(135deg,#7c3aed,#ec4899)}
.ch-mode .mode-icon.r{background:linear-gradient(135deg,#ef4444,#f43f5e)}
.ch-mode .mode-icon.c{background:linear-gradient(135deg,#0ea5e9,#06b6d4)}
.ch-mode h3{font-size:18px;margin-bottom:8px}
.ch-mode p{font-size:14px;line-height:1.6;color:var(--text-muted);margin-bottom:0}

.ch-mode.wide{padding:32px}
.ch-mode.wide.featured{
  border-color:rgba(var(--primary-rgb),.3);
  background:linear-gradient(180deg,#fff,#f8faff);
  box-shadow:0 12px 36px rgba(var(--primary-rgb),.12);
}
.ch-mode.wide.featured:hover{transform:translateY(-3px)}

/* NODE GRID (Custom IVR Flow nodes) */
.ch-node-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:12px;margin-top:18px}
.ch-node{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius);
  padding:14px 16px;transition:transform .15s, border-color .15s;
}
.ch-node:hover{transform:translateY(-2px)}
.ch-node .lbl{
  display:flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;margin-bottom:6px;
}
.ch-node .lbl i{font-size:13px}
.ch-node p{font-size:12.5px;line-height:1.55;color:var(--text-muted);margin:0}
.ch-node.v{background:linear-gradient(180deg,#f5f3ff,#fff);border-color:#ddd6fe}
.ch-node.v .lbl{color:#7c3aed}
.ch-node.g{background:linear-gradient(180deg,#ecfdf5,#fff);border-color:#a7f3d0}
.ch-node.g .lbl{color:#059669}
.ch-node.o{background:linear-gradient(180deg,#fff7ed,#fff);border-color:#fdba74}
.ch-node.o .lbl{color:#c2410c}
.ch-node.r{background:linear-gradient(180deg,#fef2f2,#fff);border-color:#fecaca}
.ch-node.r .lbl{color:#dc2626}

/* SECURITY VISUAL ROWS */
.sv-row{
  display:flex;align-items:center;gap:14px;padding:11px 14px;
  background:#fff;border:1px solid var(--border);border-radius:10px;margin-bottom:8px;
  font-size:13.5px;
}
.sv-dot{width:8px;height:8px;border-radius:99px;flex-shrink:0}
.sv-dot.g{background:var(--success);box-shadow:0 0 0 4px rgba(16,185,129,.15)}
.sv-dot.x{background:#cbd5e1}
.sv-label{flex:1;color:var(--text)}
.sv-value{font-family:'JetBrains Mono',monospace;font-size:13px;color:var(--text);font-weight:600}
.sv-hidden{
  font-family:'JetBrains Mono',monospace;font-size:12px;color:#94a3b8;
  text-transform:uppercase;letter-spacing:.08em;font-weight:600;
  padding:2px 8px;background:var(--bg-alt);border-radius:6px;
}

/* 4-step grid (for 'how it works') */
.ch-steps-4{grid-template-columns:repeat(4,1fr)}
@media(max-width:1024px){.ch-steps-4{grid-template-columns:repeat(2,1fr)}}
@media(max-width:600px){.ch-steps-4{grid-template-columns:1fr}}