/* ============================================================
   IOT Microcloud — shared design system
   Used by inner pages: usecases, platform, markets, about, contact
   ============================================================ */

:root{
  --bg:#04060c;
  --bg-2:#080c16;
  --panel:#0c1322;
  --panel-2:#11192b;
  --line:#1c2640;
  --text:#e8eef7;
  --muted:#8a96ab;
  --dim:#5c6577;
  --accent:#00d4ff;
  --accent-2:#7ee787;
  --warn:#ffb02e;
  --danger:#ff5470;
  --light:#f5f7fa;
  --light-2:#eef1f6;
  --ink:#0c1322;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0;background:var(--bg);color:var(--text);font-family:'Inter',system-ui,-apple-system,Segoe UI,Roboto,sans-serif;line-height:1.55;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
.mono{font-family:'JetBrains Mono',ui-monospace,Menlo,Consolas,monospace;font-weight:500;letter-spacing:.02em}
.container{max-width:1240px;margin:0 auto;padding:0 28px}
img{max-width:100%;display:block}

/* Buttons */
.btn{display:inline-flex;align-items:center;gap:.55em;padding:.85em 1.6em;border-radius:2px;font-weight:600;font-size:14px;letter-spacing:.04em;text-transform:uppercase;border:1px solid transparent;transition:all .2s ease;cursor:pointer;text-decoration:none}
.btn-primary{background:var(--accent);color:#04060c}
.btn-primary:hover{background:#fff;transform:translateY(-1px)}
.btn-ghost{border-color:rgba(255,255,255,.25);color:var(--text)}
.btn-ghost:hover{border-color:var(--accent);color:var(--accent)}
.btn-dark{background:var(--ink);color:#fff}
.btn-dark:hover{background:#000}
.btn-light{background:#fff;color:var(--ink);border:1px solid #e3e7ee}
.btn-light:hover{background:var(--ink);color:#fff;border-color:var(--ink)}

/* ========== TOP BAR ========== */
.topbar{background:#000;color:#cfd6e3;font-size:12px;border-bottom:1px solid #111}
.topbar .row{display:flex;justify-content:space-between;align-items:center;padding:8px 0;gap:18px;flex-wrap:wrap}
.topbar .row span,.topbar .row a{color:#9aa6b8}
.topbar .row a:hover{color:var(--accent)}
.topbar .sep{color:#2a3245;margin:0 10px}
.topbar .status-dot{display:inline-block;width:7px;height:7px;border-radius:50%;background:var(--accent-2);box-shadow:0 0 8px var(--accent-2);margin-right:6px;animation:iotpulse 2s infinite}
@keyframes iotpulse{0%,100%{opacity:1}50%{opacity:.35}}

/* ========== NAV ========== */
.nav-wrap{background:#000;border-bottom:1px solid #0e1525;position:relative;z-index:20}
.nav{display:flex;align-items:center;justify-content:space-between;padding:18px 0}
.brand{display:flex;align-items:center;gap:12px;font-weight:800;font-size:22px;letter-spacing:-.01em;color:#fff}
.brand-mark{width:42px;height:42px;display:grid;place-items:center;position:relative;flex-shrink:0}
.brand-mark img{width:100%;height:100%;object-fit:contain;display:block;filter:drop-shadow(0 0 14px rgba(132,80,255,.35))}
.brand .dot{color:var(--accent)}
.nav-links{display:flex;gap:34px;align-items:center;font-size:14px;font-weight:500}
.nav-links a{color:#cfd6e3;position:relative;padding:6px 0}
.nav-links a:hover{color:#fff}
.nav-links a.active{color:#fff}
.nav-links a::after{content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;background:var(--accent);transform:scaleX(0);transform-origin:left;transition:transform .25s ease}
.nav-links a:hover::after,.nav-links a.active::after{transform:scaleX(1)}
.nav-cta{display:flex;gap:10px;align-items:center}

/* ========== INNER HERO (compact, no canvas) ========== */
.inner-hero{position:relative;background:#000;color:#fff;padding:80px 0 70px;border-bottom:1px solid #0e1525;overflow:hidden}
.inner-hero::before{content:"";position:absolute;inset:0;opacity:.15;
  background-image:linear-gradient(rgba(0,212,255,.5) 1px,transparent 1px),linear-gradient(90deg,rgba(0,212,255,.5) 1px,transparent 1px);
  background-size:80px 80px;mask-image:radial-gradient(ellipse at 60% 40%,#000 30%,transparent 75%);-webkit-mask-image:radial-gradient(ellipse at 60% 40%,#000 30%,transparent 75%);
}
.inner-hero::after{content:"";position:absolute;inset:0;background:radial-gradient(circle at 80% 30%,rgba(0,212,255,.12),transparent 55%);pointer-events:none}
.inner-hero .container{position:relative;z-index:2}
.crumbs{font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:var(--accent);margin-bottom:18px;font-family:'JetBrains Mono',monospace;display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.crumbs a{color:#7a8aa3}
.crumbs a:hover{color:#fff}
.crumbs .sep{color:#2a3245}
.inner-hero h1{font-size:clamp(34px,4.6vw,56px);font-weight:300;letter-spacing:-.02em;line-height:1.05;margin:0 0 18px}
.inner-hero h1 b{font-weight:700;background:linear-gradient(120deg,#fff 0%,var(--accent) 100%);-webkit-background-clip:text;background-clip:text;color:transparent}
.inner-hero .lead{font-size:17px;color:#b8c2d4;max-width:680px;margin:0}

/* Eyebrow / section heading */
h2.section-title{font-size:clamp(28px,3.4vw,42px);font-weight:600;letter-spacing:-.015em;margin:0 0 14px;line-height:1.15}
.eyebrow-d{font-size:12px;letter-spacing:.16em;text-transform:uppercase;color:#5b6884;margin-bottom:14px;display:inline-flex;align-items:center;gap:10px;font-family:'JetBrains Mono',monospace}
.eyebrow-d::before{content:"";width:24px;height:1px;background:#5b6884;display:inline-block}
.section-dark .eyebrow-d{color:var(--accent)}
.section-dark .eyebrow-d::before{background:var(--accent)}

/* Sections */
.section-light{background:var(--light);color:var(--ink);padding:90px 0}
.section-dark{background:var(--bg);color:var(--text);padding:90px 0}
.section-white{background:#fff;color:var(--ink);padding:90px 0;border-top:1px solid #eef1f6}
.section-hd{display:flex;justify-content:space-between;align-items:flex-end;margin-bottom:48px;gap:40px;flex-wrap:wrap}
.section-hd p{color:#5b6884;max-width:520px;margin:0;font-size:15px}
.section-dark .section-hd p{color:var(--muted)}

/* Tags + chips */
.tag{display:inline-block;font-size:11px;font-weight:500;letter-spacing:.06em;text-transform:uppercase;background:#eef2f7;color:#3b4658;padding:5px 10px;border-radius:2px;border:1px solid #e1e6ee}
.section-dark .tag{background:rgba(0,212,255,.06);color:#9eb4cf;border-color:rgba(0,212,255,.2)}
.proto{display:inline-flex;align-items:center;gap:8px;font-family:'JetBrains Mono',monospace;font-size:12px;color:var(--accent);background:rgba(0,212,255,.06);border:1px solid rgba(0,212,255,.25);padding:6px 12px;border-radius:2px}
.proto .dot{width:6px;height:6px;border-radius:50%;background:var(--accent);box-shadow:0 0 6px var(--accent)}

/* Telemetry panel (reused) */
.telemetry{position:relative;background:rgba(8,12,22,.75);border:1px solid var(--line);border-radius:4px;padding:22px 24px;font-family:'JetBrains Mono',monospace;font-size:12px;color:#9eb4cf;box-shadow:0 30px 80px -30px rgba(0,212,255,.25)}
.telemetry::before{content:"";position:absolute;top:-1px;left:-1px;right:-1px;height:1px;background:linear-gradient(90deg,transparent,var(--accent),transparent);opacity:.6}
.tlm-head{display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--line);padding-bottom:10px;margin-bottom:14px}
.tlm-head .title{color:#fff;font-weight:600;letter-spacing:.12em;text-transform:uppercase;font-size:11px}
.tlm-head .live{color:var(--accent-2);display:flex;align-items:center;gap:6px;font-size:10px;letter-spacing:.18em;text-transform:uppercase}
.tlm-head .live .d{width:6px;height:6px;border-radius:50%;background:var(--accent-2);box-shadow:0 0 8px var(--accent-2);animation:iotpulse 1.4s infinite}
.tlm-row{display:flex;justify-content:space-between;padding:6px 0;border-bottom:1px dashed rgba(28,38,64,.7)}
.tlm-row:last-child{border:0}
.tlm-row .k{color:#6a7a93}
.tlm-row .v{color:#e8eef7}
.tlm-row .v.up{color:var(--accent-2)}
.tlm-row .v.warn{color:var(--warn)}
.tlm-foot{margin-top:14px;display:flex;justify-content:space-between;color:#5c6577;font-size:10px;letter-spacing:.08em}

/* CTA */
.cta{background:linear-gradient(135deg,#0c1322 0%,#070b15 100%);color:#fff;padding:90px 0;border-top:1px solid #1c2640;border-bottom:1px solid #1c2640;position:relative;overflow:hidden}
.cta::before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 80% 50%,rgba(0,212,255,.12),transparent 60%);pointer-events:none}
.cta .wrap{display:grid;grid-template-columns:1.4fr 1fr;align-items:center;gap:50px;position:relative;z-index:2}
.cta h2{font-size:clamp(28px,3.2vw,40px);font-weight:600;margin:0 0 14px;letter-spacing:-.015em}
.cta p{color:#aab5cb;margin:0 0 24px;max-width:520px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}
.cta .eyebrow{display:inline-flex;align-items:center;gap:10px;font-size:12px;letter-spacing:.18em;text-transform:uppercase;color:var(--accent);margin-bottom:18px}
.cta .eyebrow::before{content:"";display:inline-block;width:28px;height:1px;background:var(--accent)}

/* FOOTER */
.footer{background:#04060c;color:#7a8aa3;padding:70px 0 30px;border-top:1px solid #0e1525;font-size:14px}
.footer .grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:50px;margin-bottom:50px}
.footer h6{color:#fff;font-size:12px;letter-spacing:.14em;text-transform:uppercase;margin:0 0 18px;font-weight:600}
.footer ul{list-style:none;padding:0;margin:0}
.footer li{padding:6px 0}
.footer li a:hover{color:var(--accent)}
.footer .legal{display:flex;justify-content:space-between;border-top:1px solid #0e1525;padding-top:24px;font-size:12px;color:#5c6577}
.footer .legal a:hover{color:var(--accent)}
.footer .blurb{color:#8a96ab;max-width:340px;margin:14px 0 18px;font-size:13.5px;line-height:1.6}

/* ============================================================
   Components specific to inner pages
   ============================================================ */

/* Case study block */
.case{display:grid;grid-template-columns:1fr;gap:0;background:#fff;border:1px solid #e3e7ee;margin-bottom:36px;overflow:hidden;scroll-margin-top:80px}
.case-head{display:grid;grid-template-columns:1.1fr .9fr;gap:0;border-bottom:1px solid #eef1f6}
.case-art{position:relative;min-height:340px;background:#0c1322;overflow:hidden}
.case-art canvas{position:absolute;inset:0;width:100%;height:100%;display:block}
.case-art .label{position:absolute;left:18px;top:18px;font-family:'JetBrains Mono',monospace;font-size:10px;color:var(--accent);letter-spacing:.16em;background:rgba(0,0,0,.6);padding:5px 9px;border:1px solid rgba(0,212,255,.4);border-radius:2px;text-transform:uppercase;z-index:3}
.case-art .coords{position:absolute;right:14px;bottom:14px;font-family:'JetBrains Mono',monospace;font-size:10px;color:#7eb6e0;letter-spacing:.08em;background:rgba(0,0,0,.5);padding:4px 8px;border-radius:2px;z-index:3}
.case-summary{padding:36px 40px;display:flex;flex-direction:column;justify-content:center}
.case-summary .num{font-family:'JetBrains Mono',monospace;font-size:11px;color:var(--accent);letter-spacing:.16em;margin-bottom:10px;text-transform:uppercase}
.case-summary h2{font-size:26px;font-weight:600;margin:0 0 12px;letter-spacing:-.01em}
.case-summary p{color:#4a5568;font-size:15px;margin:0 0 16px;line-height:1.65}
.case-tags{display:flex;flex-wrap:wrap;gap:8px}

.case-body{display:grid;grid-template-columns:repeat(3,1fr);gap:0}
.case-cell{padding:34px 36px;border-right:1px solid #eef1f6}
.case-cell:last-child{border-right:0}
.case-cell h4{font-size:11px;letter-spacing:.16em;text-transform:uppercase;color:var(--accent);margin:0 0 14px;font-weight:600;font-family:'JetBrains Mono',monospace}
.case-cell p{color:#4a5568;margin:0 0 12px;font-size:14px;line-height:1.6}
.case-cell .metric{display:flex;align-items:baseline;gap:8px;margin:14px 0 0;padding:14px 0 0;border-top:1px dashed #e3e7ee}
.case-cell .metric .v{font-size:24px;font-weight:700;color:var(--ink);letter-spacing:-.01em;line-height:1}
.case-cell .metric .l{font-size:11px;color:#5b6884;letter-spacing:.08em;text-transform:uppercase}

/* Stack table / matrix */
.kv-table{width:100%;border-collapse:collapse;font-size:14px;background:var(--panel);border:1px solid var(--line)}
.kv-table th,.kv-table td{text-align:left;padding:14px 18px;border-bottom:1px solid var(--line);color:#c9d3e2}
.kv-table th{font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--accent);font-weight:600;background:rgba(0,212,255,.04);font-family:'JetBrains Mono',monospace}
.kv-table td:first-child{font-family:'JetBrains Mono',monospace;color:#fff;font-weight:500;width:200px}
.kv-table tr:last-child td{border-bottom:0}

/* Vertical accordion / market sections */
.vertical{display:grid;grid-template-columns:280px 1fr;gap:60px;padding:60px 0;border-bottom:1px solid #e3e7ee;scroll-margin-top:80px}
.vertical:last-child{border-bottom:0}
.vertical .v-head{position:sticky;top:90px;align-self:flex-start}
.vertical .v-num{font-family:'JetBrains Mono',monospace;font-size:12px;color:var(--accent);letter-spacing:.14em;margin-bottom:8px}
.vertical h2{font-size:26px;font-weight:600;margin:0 0 12px;letter-spacing:-.01em}
.vertical .v-tag{color:#5b6884;font-size:13px}
.vertical .v-body p{color:#3b4658;font-size:15px;line-height:1.65;margin:0 0 14px}
.vertical .v-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px 28px;margin-top:24px}
.vertical .v-grid .item h5{font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--accent);margin:0 0 8px;font-family:'JetBrains Mono',monospace}
.vertical .v-grid .item p{margin:0;font-size:14px;color:#4a5568}

/* Stat strip */
.statstrip{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border:1px solid var(--line);margin-top:30px}
.statstrip .stat{background:var(--panel);padding:24px 26px}
.statstrip .stat .v{font-size:28px;font-weight:700;color:#fff;letter-spacing:-.015em;font-family:'JetBrains Mono',monospace}
.statstrip .stat .l{font-size:11px;color:var(--muted);text-transform:uppercase;letter-spacing:.12em;margin-top:6px}
.section-light .statstrip{background:#e3e7ee;border-color:#e3e7ee}
.section-light .statstrip .stat{background:#fff}
.section-light .statstrip .stat .v{color:var(--ink)}
.section-light .statstrip .stat .l{color:#5b6884}

/* Two col block */
.twocol{display:grid;grid-template-columns:1fr 1fr;gap:50px;align-items:start}
.twocol .copy h2{margin-bottom:16px}
.twocol .copy p{color:#4a5568;font-size:15px;line-height:1.7}
.section-dark .twocol .copy p{color:#b8c2d4}

/* Pillars (about page) */
.pillars{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.pillar{background:#fff;border:1px solid #e3e7ee;padding:30px 28px}
.pillar .num{font-family:'JetBrains Mono',monospace;font-size:11px;color:var(--accent);letter-spacing:.14em;margin-bottom:14px}
.pillar h3{font-size:18px;font-weight:600;margin:0 0 10px;letter-spacing:-.005em}
.pillar p{color:#4a5568;font-size:14px;line-height:1.6;margin:0}
.section-dark .pillar{background:var(--panel);border-color:var(--line)}
.section-dark .pillar h3{color:#fff}
.section-dark .pillar p{color:var(--muted)}

/* Pricing tiers */
.pricing-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-top:10px}
.tier{background:#fff;border:1px solid #e3e7ee;padding:30px 26px;display:flex;flex-direction:column;position:relative;transition:all .25s ease}
.tier:hover{transform:translateY(-3px);box-shadow:0 30px 60px -25px rgba(12,19,34,.18);border-color:#cfd6e3}
.tier.featured{background:linear-gradient(180deg,#0c1322 0%,#070b15 100%);color:#fff;border-color:#1c2640}
.tier.featured::before{content:"MOST POPULAR";position:absolute;top:-1px;left:32px;background:var(--accent);color:#04060c;font-family:'JetBrains Mono',monospace;font-size:10px;letter-spacing:.16em;padding:5px 10px;border-radius:0 0 2px 2px;font-weight:700}
.tier .t-name{font-family:'JetBrains Mono',monospace;font-size:11px;letter-spacing:.16em;text-transform:uppercase;color:var(--accent);margin-bottom:14px}
.tier .t-price{font-size:32px;font-weight:700;letter-spacing:-.02em;line-height:1.05;margin-bottom:6px}
.tier .t-price .unit{font-size:14px;font-weight:500;color:var(--muted);margin-left:6px}
.tier.featured .t-price .unit{color:#8a96ab}
.tier .t-tagline{font-size:13px;color:#5b6884;margin-bottom:22px;padding-bottom:22px;border-bottom:1px solid #eef1f6}
.tier.featured .t-tagline{color:#8a96ab;border-bottom-color:#1c2640}
.tier ul.features{list-style:none;padding:0;margin:0 0 28px;flex-grow:1}
.tier ul.features li{padding:8px 0;font-size:14px;color:#3b4658;display:flex;gap:10px;align-items:flex-start;border-bottom:1px dashed #eef1f6}
.tier ul.features li:last-child{border:0}
.tier.featured ul.features li{color:#c9d3e2;border-bottom-color:rgba(28,38,64,.7)}
.tier ul.features li::before{content:"✓";color:var(--accent);font-weight:700;font-size:14px;flex-shrink:0;margin-top:1px}
.tier .t-cta{margin-top:auto}

.comparison{width:100%;border-collapse:collapse;background:#fff;border:1px solid #e3e7ee;font-size:14px;margin-top:30px}
.comparison th,.comparison td{padding:14px 18px;text-align:left;border-bottom:1px solid #eef1f6}
.comparison th{background:#f5f7fa;font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:#3b4658;font-family:'JetBrains Mono',monospace;font-weight:600}
.comparison th.tier-col{text-align:center;color:var(--accent)}
.comparison td.feature{font-weight:500;color:var(--ink)}
.comparison td.cell{text-align:center;color:#4a5568}
.comparison tr:last-child td{border-bottom:0}

@media (max-width:1100px){
  .pricing-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:640px){
  .pricing-grid{grid-template-columns:1fr}
  .comparison{display:block;overflow-x:auto}
}

/* Form */
.form{background:#fff;border:1px solid #e3e7ee;padding:36px 36px 30px;display:grid;grid-template-columns:1fr 1fr;gap:18px}
.form .field{display:flex;flex-direction:column;gap:6px}
.form .field.full{grid-column:1/-1}
.form label{font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:#5b6884;font-family:'JetBrains Mono',monospace;font-weight:600}
.form input,.form select,.form textarea{background:#fff;border:1px solid #d6dce6;border-radius:2px;padding:12px 14px;font-family:inherit;font-size:14px;color:var(--ink);transition:border-color .15s}
.form input:focus,.form select:focus,.form textarea:focus{outline:0;border-color:var(--accent);box-shadow:0 0 0 3px rgba(0,212,255,.15)}
.form textarea{resize:vertical;min-height:130px}
.form .submit-row{grid-column:1/-1;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:14px;margin-top:8px}
.form .submit-row .note{font-size:12px;color:#5b6884}
.form-status{font-size:13px;font-family:'JetBrains Mono',monospace;padding:8px 0;color:#5b6884}
.form-status.success{color:#2a8d3b}
.form-status.error{color:#c0392b}

/* Responsive */
@media (max-width:960px){
  .nav-links{display:none}
  .case-head,.case-body{grid-template-columns:1fr}
  .case-cell{border-right:0;border-bottom:1px solid #eef1f6}
  .case-cell:last-child{border-bottom:0}
  .case-art{min-height:240px}
  .vertical{grid-template-columns:1fr;gap:24px;padding:48px 0}
  .vertical .v-head{position:static}
  .vertical .v-grid{grid-template-columns:1fr}
  .twocol{grid-template-columns:1fr}
  .statstrip{grid-template-columns:1fr 1fr}
  .pillars{grid-template-columns:1fr}
  .cta .wrap{grid-template-columns:1fr}
  .footer .grid{grid-template-columns:1fr 1fr;gap:34px}
  .form{grid-template-columns:1fr}
}
@media (max-width:560px){
  .topbar .row{justify-content:flex-start}
  .statstrip{grid-template-columns:1fr}
  .footer .grid{grid-template-columns:1fr}
}

/* Fade-up */
.fade-up{opacity:0;transform:translateY(14px);transition:opacity .7s ease,transform .7s ease}
.fade-up.in{opacity:1;transform:none}