/* =========================================================
   ATechsCloud — Design System
   Cloud-Native Platform Engineering
   ========================================================= */

:root {
  /* Brand palette */
  --bg:            #0a0e1a;
  --bg-soft:       #0f1626;
  --bg-card:       #131c30;
  --bg-card-hover: #18233c;
  --border:        #1f2c45;
  --border-glow:   #2c4a7a;

  --text:          #e6ecf5;
  --text-soft:     #a4b2c9;
  --text-dim:      #6b7a96;

  --brand:         #38bdf8;   /* sky */
  --brand-2:       #818cf8;   /* indigo */
  --brand-3:       #34d399;   /* emerald */
  --accent:        #f472b6;   /* pink for highlights */

  --grad-hero:  radial-gradient(1200px 600px at 75% -10%, rgba(56,189,248,.18), transparent 60%),
                radial-gradient(900px 500px at 10% 10%, rgba(129,140,248,.16), transparent 55%);
  --grad-text:  linear-gradient(120deg, #38bdf8 0%, #818cf8 50%, #34d399 100%);
  --grad-btn:   linear-gradient(120deg, #38bdf8, #6366f1);

  --shadow:     0 18px 50px -18px rgba(0,0,0,.7);
  --shadow-glow:0 0 0 1px rgba(56,189,248,.25), 0 22px 60px -24px rgba(56,189,248,.35);

  --radius:     16px;
  --radius-sm:  10px;
  --maxw:       1160px;
  --font: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
ul { list-style: none; }

/* ---------- Layout helpers ---------- */
.container { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }
.section   { padding: 92px 0; position: relative; }
.section--tight { padding: 64px 0; }
.center { text-align: center; }

.eyebrow {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--brand);
  margin-bottom: 14px;
}
.section-title {
  font-size: clamp(1.7rem, 3.4vw, 2.6rem);
  font-weight: 800;
  letter-spacing: -.02em;
  line-height: 1.15;
}
.section-sub {
  color: var(--text-soft);
  max-width: 640px;
  margin: 16px auto 0;
  font-size: 1.05rem;
}
.gradient-text {
  background: var(--grad-text);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 13px 26px;
  border-radius: 999px;
  font-weight: 600;
  font-size: .98rem;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform .2s ease, box-shadow .25s ease, background .25s ease, border-color .25s;
  white-space: nowrap;
}
.btn-primary {
  background: var(--grad-btn);
  color: #fff;
  box-shadow: 0 12px 30px -10px rgba(56,189,248,.55);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 18px 40px -10px rgba(56,189,248,.7); }
.btn-ghost {
  background: rgba(255,255,255,.03);
  border-color: var(--border);
  color: var(--text);
}
.btn-ghost:hover { border-color: var(--border-glow); background: rgba(56,189,248,.08); transform: translateY(-2px); }
.btn-lg { padding: 16px 34px; font-size: 1.05rem; }

/* ---------- Navbar ---------- */
.nav {
  position: sticky; top: 0; z-index: 50;
  backdrop-filter: blur(14px);
  background: rgba(10,14,26,.72);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  display: flex; align-items: center; justify-content: space-between;
  height: 70px; gap: 32px;
}
.brand { display: flex; align-items: center; gap: 11px; font-weight: 800; font-size: 1.18rem; letter-spacing: -.02em; }
.brand .logo {
  width: 34px; height: 34px; border-radius: 9px;
  background: var(--grad-btn);
  display: grid; place-items: center;
  box-shadow: 0 6px 18px -6px rgba(56,189,248,.7);
  font-size: 18px;
}
.brand span.dot { color: var(--brand); }

.nav-links { display: flex; align-items: center; gap: 24px; }
.nav-links a {
  color: var(--text-soft); font-weight: 500; font-size: .96rem;
  position: relative; transition: color .2s;
}
.nav-links a:hover, .nav-links a.active { color: var(--text); }
.nav-links a.active::after {
  content: ""; position: absolute; left: 0; bottom: -6px; height: 2px; width: 100%;
  background: var(--grad-btn); border-radius: 2px;
}
.nav-cta { display: flex; align-items: center; gap: 14px; }

.nav-toggle {
  display: none; background: none; border: 1px solid var(--border);
  border-radius: 9px; width: 42px; height: 42px; cursor: pointer; color: var(--text);
  font-size: 20px;
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  padding: 120px 0 96px;
  background: var(--grad-hero);
  overflow: hidden;
}
.hero::after {
  content: ""; position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(56,189,248,.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(56,189,248,.05) 1px, transparent 1px);
  background-size: 46px 46px;
  -webkit-mask-image: radial-gradient(700px 360px at 70% 0%, #000, transparent 75%);
          mask-image: radial-gradient(700px 360px at 70% 0%, #000, transparent 75%);
  pointer-events: none;
}
.hero .container { position: relative; z-index: 1; }

.badge-pill {
  display: inline-flex; align-items: center; gap: 9px;
  padding: 7px 16px; border-radius: 999px;
  background: rgba(52,211,153,.1);
  border: 1px solid rgba(52,211,153,.3);
  color: #6ee7b7; font-size: .85rem; font-weight: 600;
  margin-bottom: 26px;
}
.badge-pill .pulse {
  width: 8px; height: 8px; border-radius: 50%;
  background: #34d399; box-shadow: 0 0 0 0 rgba(52,211,153,.6);
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0%   { box-shadow: 0 0 0 0 rgba(52,211,153,.55); }
  70%  { box-shadow: 0 0 0 8px rgba(52,211,153,0); }
  100% { box-shadow: 0 0 0 0 rgba(52,211,153,0); }
}

.hero h1 {
  font-size: clamp(2.4rem, 6vw, 4.3rem);
  font-weight: 800;
  letter-spacing: -.03em;
  line-height: 1.05;
  max-width: 16ch;
}
.hero .lead {
  color: var(--text-soft);
  font-size: clamp(1.05rem, 2vw, 1.28rem);
  max-width: 56ch;
  margin: 24px 0 8px;
}
.hero .hero-actions { display: flex; flex-wrap: wrap; gap: 16px; margin-top: 34px; }

/* ---------- Stats strip ---------- */
.stats {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px;
  margin-top: 70px;
}
.stat { text-align: center; padding: 18px; border-left: 1px solid var(--border); }
.stat:first-child { border-left: none; }
.stat .num { font-size: clamp(1.6rem, 3vw, 2.3rem); font-weight: 800; }
.stat .lbl { color: var(--text-dim); font-size: .9rem; margin-top: 4px; }

/* ---------- Logos / tech marquee ---------- */
.tech-strip { border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); background: var(--bg-soft); padding: 30px 0; }
.tech-strip .label { text-align: center; color: var(--text-dim); font-size: .82rem; letter-spacing: .15em; text-transform: uppercase; margin-bottom: 22px; }
.tech-row { display: flex; flex-wrap: wrap; justify-content: center; align-items: center; gap: 16px; }
.tech-chip {
  display: inline-flex; align-items: center; gap: 9px;
  padding: 10px 18px; border-radius: 12px;
  background: var(--bg-card); border: 1px solid var(--border);
  font-weight: 600; font-size: .92rem; color: var(--text-soft);
  transition: transform .2s, border-color .2s, color .2s;
}
.tech-chip:hover { transform: translateY(-3px); border-color: var(--border-glow); color: var(--text); }
.tech-chip .ic { font-size: 1.15rem; }

/* ---------- Cards / grids ---------- */
.grid { display: grid; gap: 24px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  transition: transform .25s, border-color .25s, background .25s, box-shadow .25s;
  position: relative;
  overflow: hidden;
}
.card::before {
  content: ""; position: absolute; inset: 0;
  background: radial-gradient(400px 200px at var(--mx,50%) var(--my,0%), rgba(56,189,248,.08), transparent 60%);
  opacity: 0; transition: opacity .3s;
}
.card:hover { transform: translateY(-5px); border-color: var(--border-glow); background: var(--bg-card-hover); box-shadow: var(--shadow); }
.card:hover::before { opacity: 1; }

.card .icon {
  width: 52px; height: 52px; border-radius: 13px;
  display: grid; place-items: center; font-size: 1.5rem;
  background: linear-gradient(135deg, rgba(56,189,248,.18), rgba(129,140,248,.18));
  border: 1px solid var(--border-glow);
  margin-bottom: 18px;
}
.card h3 { font-size: 1.2rem; font-weight: 700; margin-bottom: 12px; letter-spacing: -.01em; }
.card p  { color: var(--text-soft); font-size: .96rem; }

.card ul.ticks { margin-top: 14px; display: grid; gap: 9px; }
.card ul.ticks li { display: flex; gap: 10px; align-items: flex-start; color: var(--text-soft); font-size: .94rem; }
.card ul.ticks li::before { content: "▹"; color: var(--brand); font-weight: 700; }

/* ---------- Audience pills ---------- */
.audience { display: flex; flex-wrap: wrap; gap: 16px; justify-content: center; }
.audience .pill {
  padding: 16px 28px; border-radius: 14px;
  background: var(--bg-card); border: 1px solid var(--border);
  font-weight: 600; display: flex; align-items: center; gap: 12px;
  transition: transform .2s, border-color .2s;
}
.audience .pill:hover { transform: translateY(-3px); border-color: var(--border-glow); }
.audience .pill .em { font-size: 1.35rem; }

/* ---------- Roadmap / timeline ---------- */
.roadmap-grid { display: grid; grid-template-columns: repeat(2,1fr); gap: 22px; }
.road-card {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 26px;
  position: relative; transition: transform .25s, border-color .25s;
}
.road-card:hover { transform: translateY(-4px); border-color: var(--border-glow); }
.road-card .tag {
  display: inline-block; font-size: .72rem; font-weight: 700; letter-spacing: .1em;
  text-transform: uppercase; padding: 5px 12px; border-radius: 999px; margin-bottom: 14px;
}
.tag-soon  { background: rgba(244,114,182,.13); color: #f9a8d4; border: 1px solid rgba(244,114,182,.3); }
.tag-prog  { background: rgba(56,189,248,.13);  color: #7dd3fc; border: 1px solid rgba(56,189,248,.3); }
.tag-plan  { background: rgba(129,140,248,.13); color: #a5b4fc; border: 1px solid rgba(129,140,248,.3); }
.road-card h3 { font-size: 1.18rem; margin-bottom: 8px; }
.road-card p { color: var(--text-soft); font-size: .95rem; }

.progress { height: 7px; border-radius: 999px; background: var(--bg-soft); margin-top: 18px; overflow: hidden; border: 1px solid var(--border); }
.progress > span { display: block; height: 100%; border-radius: 999px; background: var(--grad-btn); }

/* ---------- What We Offer (services) ---------- */
.offer-card {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 28px;
  overflow: hidden;
  transition: transform .25s, border-color .25s, box-shadow .25s, background .25s;
}
.offer-card::after {
  content: ""; position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: var(--grad-text);
  transform: scaleX(0); transform-origin: left; transition: transform .4s ease;
}
.offer-card:hover {
  transform: translateY(-6px);
  border-color: var(--border-glow);
  background: var(--bg-card-hover);
  box-shadow: var(--shadow);
}
.offer-card:hover::after { transform: scaleX(1); }
.offer-card .o-ic {
  width: 60px; height: 60px; border-radius: 15px;
  display: inline-grid; place-items: center; font-size: 1.9rem; margin-bottom: 18px;
  background: linear-gradient(135deg, rgba(56,189,248,.18), rgba(129,140,248,.18));
  border: 1px solid var(--border-glow);
}
.offer-card h3 { font-size: 1.22rem; font-weight: 700; margin-bottom: 11px; letter-spacing: -.01em; }
.offer-card p  { color: var(--text-soft); font-size: .96rem; }
.offer-card .o-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 18px; }
.offer-card .o-tags span {
  font-size: .78rem; font-weight: 600; padding: 5px 12px; border-radius: 999px;
  background: rgba(56,189,248,.08); border: 1px solid var(--border); color: var(--text-soft);
}

/* ---------- Founder ---------- */
.founder { display: grid; grid-template-columns: 320px 1fr; gap: 48px; align-items: center; }
.founder-card {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: 22px; padding: 34px; text-align: center; box-shadow: var(--shadow);
}
.avatar {
  width: 130px; height: 130px; border-radius: 50%; margin: 0 auto 20px;
  display: grid; place-items: center; font-size: 2.6rem; font-weight: 800; color: #fff;
  background: var(--grad-btn);
  box-shadow: 0 0 0 6px rgba(56,189,248,.12), 0 18px 40px -16px rgba(56,189,248,.6);
}
.founder-card h3 { font-size: 1.4rem; }
.founder-card .role { color: var(--brand); font-weight: 600; font-size: .95rem; margin-top: 4px; }

.skill-tags { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 22px; }
.skill-tags .t {
  padding: 7px 15px; border-radius: 999px; font-size: .85rem; font-weight: 600;
  background: rgba(56,189,248,.08); border: 1px solid var(--border); color: var(--text-soft);
}

.cert-list { display: grid; gap: 12px; margin-top: 20px; }
.cert-list li {
  display: flex; align-items: center; gap: 14px;
  background: var(--bg-card); border: 1px solid var(--border); border-radius: 12px;
  padding: 15px 18px; transition: border-color .2s, transform .2s;
}
.cert-list li:hover { border-color: var(--border-glow); transform: translateX(4px); }
.cert-list .medal {
  width: 40px; height: 40px; border-radius: 10px; display: grid; place-items: center; font-size: 1.2rem;
  background: linear-gradient(135deg, rgba(52,211,153,.18), rgba(56,189,248,.18));
  border: 1px solid var(--border-glow); flex-shrink: 0;
}
.cert-list .c-name { font-weight: 600; }
.cert-list .c-iss  { color: var(--text-dim); font-size: .85rem; }

/* ---------- Contact ---------- */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; }
.contact-info { display: grid; gap: 16px; align-content: start; }
.contact-item {
  display: flex; gap: 16px; align-items: center;
  background: var(--bg-card); border: 1px solid var(--border); border-radius: 14px; padding: 20px;
  transition: border-color .2s, transform .2s;
}
.contact-item:hover { border-color: var(--border-glow); transform: translateY(-3px); }
.contact-item .ic {
  width: 48px; height: 48px; border-radius: 12px; display: grid; place-items: center; font-size: 1.3rem; flex-shrink: 0;
  background: linear-gradient(135deg, rgba(56,189,248,.18), rgba(129,140,248,.18)); border: 1px solid var(--border-glow);
}
.contact-item .k { color: var(--text-dim); font-size: .82rem; text-transform: uppercase; letter-spacing: .08em; }
.contact-item .v { font-weight: 600; font-size: 1.02rem; word-break: break-word; }

.form {
  background: var(--bg-card); border: 1px solid var(--border); border-radius: 18px; padding: 30px;
}
.form .field { margin-bottom: 18px; }
.form label { display: block; font-size: .88rem; font-weight: 600; margin-bottom: 8px; color: var(--text-soft); }
.form input, .form textarea, .form select {
  width: 100%; padding: 13px 15px; border-radius: 11px;
  background: var(--bg-soft); border: 1px solid var(--border); color: var(--text);
  font-family: inherit; font-size: .96rem; transition: border-color .2s, box-shadow .2s;
}
.form input:focus, .form textarea:focus, .form select:focus {
  outline: none; border-color: var(--brand); box-shadow: 0 0 0 3px rgba(56,189,248,.15);
}
.form textarea { resize: vertical; min-height: 130px; }
.form .note { font-size: .82rem; color: var(--text-dim); margin-top: 10px; }
.form-msg { margin-top: 14px; font-weight: 600; display: none; }
.form-msg.show { display: block; }

/* ---------- CTA band ---------- */
.cta-band {
  background:
    radial-gradient(700px 300px at 80% 20%, rgba(129,140,248,.22), transparent 60%),
    linear-gradient(120deg, #101a2e, #0d1322);
  border: 1px solid var(--border);
  border-radius: 26px;
  padding: 56px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.cta-band h2 { font-size: clamp(1.6rem, 3.5vw, 2.4rem); font-weight: 800; letter-spacing: -.02em; }
.cta-band p { color: var(--text-soft); max-width: 52ch; margin: 14px auto 28px; }
.cta-actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

/* ---------- Footer ---------- */
.footer { border-top: 1px solid var(--border); background: var(--bg-soft); padding: 56px 0 30px; margin-top: 10px; }
.footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr; gap: 40px; }
.footer h4 { font-size: .82rem; text-transform: uppercase; letter-spacing: .12em; color: var(--text-dim); margin-bottom: 16px; }
.footer ul { display: grid; gap: 10px; }
.footer ul a { color: var(--text-soft); font-size: .94rem; transition: color .2s; }
.footer ul a:hover { color: var(--brand); }
.footer .blurb { color: var(--text-soft); font-size: .94rem; max-width: 34ch; margin-top: 14px; }
.footer-bottom {
  border-top: 1px solid var(--border); margin-top: 40px; padding-top: 22px;
  display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 14px;
  color: var(--text-dim); font-size: .9rem;
}
.social { display: flex; gap: 12px; }
.social a {
  width: 38px; height: 38px; border-radius: 10px; display: grid; place-items: center;
  background: var(--bg-card); border: 1px solid var(--border); color: var(--text-soft);
  transition: border-color .2s, color .2s, transform .2s;
}
.social a:hover { border-color: var(--border-glow); color: var(--brand); transform: translateY(-3px); }

/* ---------- Page hero (inner pages) ---------- */
.page-hero { padding: 80px 0 48px; background: var(--grad-hero); position: relative; }
.page-hero h1 { font-size: clamp(2rem, 5vw, 3.2rem); font-weight: 800; letter-spacing: -.02em; }
.page-hero p { color: var(--text-soft); max-width: 60ch; margin-top: 14px; font-size: 1.1rem; }
.crumb { color: var(--text-dim); font-size: .9rem; margin-bottom: 16px; }
.crumb a:hover { color: var(--brand); }

/* ---------- Announcement top bar ---------- */
.topbar {
  background: linear-gradient(90deg, rgba(56,189,248,.16), rgba(129,140,248,.16));
  border-bottom: 1px solid var(--border);
  font-size: .88rem; color: var(--text-soft);
}
.topbar .container {
  display: flex; align-items: center; justify-content: center; gap: 12px;
  flex-wrap: wrap; padding-top: 9px; padding-bottom: 9px; text-align: center;
}
.topbar strong { color: var(--text); font-weight: 700; }
.topbar a { color: var(--brand); font-weight: 600; white-space: nowrap; }
.topbar a:hover { text-decoration: underline; }
.topbar .sep { color: var(--text-dim); }
@media (max-width: 600px) { .topbar .sep { display: none; } }

/* ---------- Product architecture diagram ---------- */
.arch { max-width: 600px; margin: 0 auto; }
.arch-node {
  background: var(--bg-card); border: 1px solid var(--border); border-radius: 14px;
  padding: 16px 22px; text-align: center; transition: border-color .25s, transform .25s;
}
.arch-node:hover { border-color: var(--border-glow); transform: translateY(-2px); }
.arch-node .t { font-weight: 700; font-size: 1.02rem; display: flex; gap: 9px; justify-content: center; align-items: center; }
.arch-node .s { color: var(--text-dim); font-size: .84rem; margin-top: 3px; }
.arch-node.hl {
  background: linear-gradient(135deg, rgba(56,189,248,.14), rgba(129,140,248,.14));
  border-color: var(--border-glow);
}
.arch-arrow { display: grid; place-items: center; color: var(--brand); font-size: 1.35rem; height: 30px; }
.arch-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.arch-row .arch-node .t { font-size: .95rem; }
@media (max-width: 560px) { .arch-row { grid-template-columns: 1fr; } }

/* ---------- Reveal animation ---------- */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity .7s ease, transform .7s ease; }
.reveal.in { opacity: 1; transform: none; }

/* ---------- Footer legal links ---------- */
.legal-links { display: flex; gap: 18px; flex-wrap: wrap; }
.legal-links a { color: var(--text-dim); font-size: .9rem; transition: color .2s; }
.legal-links a:hover { color: var(--brand); }

/* ---------- Article / prose (blog + legal) ---------- */
.prose { max-width: 760px; margin: 0 auto; }
.prose > p { color: var(--text-soft); font-size: 1.05rem; margin-bottom: 20px; }
.prose h2 { font-size: 1.5rem; font-weight: 700; letter-spacing: -.01em; margin: 38px 0 14px; }
.prose h3 { font-size: 1.18rem; font-weight: 700; margin: 26px 0 10px; }
.prose ul.ticks { display: grid; gap: 10px; margin: 8px 0 22px; }
.prose ul.ticks li { display: flex; gap: 10px; align-items: flex-start; color: var(--text-soft); }
.prose ul.ticks li::before { content: "▹"; color: var(--brand); font-weight: 700; }
.prose strong { color: var(--text); }
.prose a { color: var(--brand); }
.prose a:hover { text-decoration: underline; }
.prose code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: .9em; background: var(--bg-soft); border: 1px solid var(--border);
  border-radius: 6px; padding: 2px 6px; color: #93c5fd;
}
.prose pre {
  background: var(--bg-soft); border: 1px solid var(--border); border-radius: 12px;
  padding: 18px 20px; overflow-x: auto; margin: 0 0 22px;
}
.prose pre code {
  background: none; border: none; padding: 0; color: var(--text);
  font-size: .88rem; line-height: 1.6; display: block; white-space: pre;
}
.prose blockquote {
  border-left: 3px solid var(--brand); background: var(--bg-soft);
  border-radius: 0 12px 12px 0; padding: 16px 20px; margin: 30px 0 0;
  color: var(--text-soft); font-style: italic;
}
.article-nav {
  max-width: 760px; margin: 44px auto 0; display: flex;
  justify-content: space-between; gap: 16px; flex-wrap: wrap;
}

/* ---------- Case studies ---------- */
.cases { display: grid; gap: 24px; }
.case-card {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 30px;
  transition: border-color .25s, transform .25s, box-shadow .25s;
}
.case-card:hover { border-color: var(--border-glow); transform: translateY(-4px); box-shadow: var(--shadow); }
.case-head { display: flex; align-items: center; gap: 14px; margin-bottom: 6px; flex-wrap: wrap; }
.case-head .o-ic { margin: 0; width: 52px; height: 52px; font-size: 1.5rem; }
.case-head h3 { font-size: 1.25rem; font-weight: 700; letter-spacing: -.01em; }
.case-csr { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin: 20px 0 18px; }
.csr-item .k { font-size: .72rem; text-transform: uppercase; letter-spacing: .1em; font-weight: 700; margin-bottom: 7px; }
.csr-item.ch .k { color: #f9a8d4; }
.csr-item.so .k { color: #7dd3fc; }
.csr-item.re .k { color: #6ee7b7; }
.csr-item p { color: var(--text-soft); font-size: .93rem; }
.case-link { margin-top: 16px; }
.case-link a { color: var(--brand); font-weight: 600; font-size: .92rem; }
.case-link a:hover { text-decoration: underline; }
@media (max-width: 760px) { .case-csr { grid-template-columns: 1fr; } }

/* ---------- Pricing plans ---------- */
.plan { position: relative; display: flex; flex-direction: column; }
.plan .price { font-size: 2.4rem; font-weight: 800; margin: 16px 0 4px; letter-spacing: -.02em; }
.plan .price span { font-size: 1rem; color: var(--text-dim); font-weight: 600; }
.plan-sub { color: var(--text-dim); font-size: .9rem; margin-bottom: 6px; }
.plan ul.ticks { margin-bottom: 22px; }
.plan .btn { margin-top: auto; width: 100%; justify-content: center; }
.plan-pop { border-color: var(--border-glow); box-shadow: var(--shadow-glow); }
.plan-badge {
  position: absolute; top: -12px; left: 50%; transform: translateX(-50%);
  background: var(--grad-btn); color: #fff; font-size: .68rem; font-weight: 700;
  letter-spacing: .06em; text-transform: uppercase; padding: 4px 13px; border-radius: 999px; white-space: nowrap;
}

/* ---------- Technology stack ---------- */
.stack-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 14px; }
.stack-item {
  background: var(--bg-card); border: 1px solid var(--border); border-radius: 12px;
  padding: 16px 12px; text-align: center; transition: transform .2s, border-color .2s;
}
.stack-item:hover { transform: translateY(-3px); border-color: var(--border-glow); }
.stack-item .si-ic { font-size: 1.5rem; }
.stack-item .si-n { font-weight: 700; font-size: .92rem; margin-top: 8px; }
.stack-item .si-r { color: var(--text-dim); font-size: .76rem; margin-top: 2px; }
@media (max-width: 760px) { .stack-grid { grid-template-columns: repeat(2, 1fr); } }

/* ---------- Product preview mockup ---------- */
.preview-frame {
  max-width: 940px; margin: 0 auto; border: 1px solid var(--border);
  border-radius: 14px; overflow: hidden; background: var(--bg-card); box-shadow: var(--shadow);
}
.pf-bar { display: flex; align-items: center; gap: 8px; padding: 11px 16px; background: var(--bg-soft); border-bottom: 1px solid var(--border); }
.pf-dot { width: 11px; height: 11px; border-radius: 50%; background: var(--border-glow); }
.pf-dot:nth-child(1) { background: #f87171; }
.pf-dot:nth-child(2) { background: #fbbf24; }
.pf-dot:nth-child(3) { background: #34d399; }
.pf-url { margin-left: 12px; font-size: .8rem; color: var(--text-dim); background: var(--bg); border: 1px solid var(--border); border-radius: 7px; padding: 4px 14px; }
.pf-body { display: grid; grid-template-columns: 184px 1fr; }
.pf-side { background: var(--bg-soft); border-right: 1px solid var(--border); padding: 18px 14px; display: flex; flex-direction: column; gap: 5px; }
.pf-brand { font-weight: 800; margin-bottom: 14px; font-size: 1.02rem; }
.pf-nav { display: flex; gap: 9px; align-items: center; padding: 9px 12px; border-radius: 9px; color: var(--text-soft); font-size: .88rem; font-weight: 500; }
.pf-nav.active { background: linear-gradient(135deg, rgba(56,189,248,.16), rgba(129,140,248,.16)); color: var(--text); border: 1px solid var(--border-glow); }
.pf-main { padding: 20px; }
.pf-kpis { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.pf-kpi { background: var(--bg-soft); border: 1px solid var(--border); border-radius: 11px; padding: 14px; }
.pf-kpi .k { color: var(--text-dim); font-size: .68rem; text-transform: uppercase; letter-spacing: .07em; }
.pf-kpi .v { font-size: 1.45rem; font-weight: 800; margin-top: 6px; }
.pf-kpi .d { font-size: .76rem; color: var(--text-dim); margin-top: 2px; }
.pf-kpi .d.down { color: #6ee7b7; }
.pf-kpi .d.up { color: #7dd3fc; }
.pf-cols { display: grid; grid-template-columns: 1.2fr 1fr; gap: 14px; margin-top: 14px; }
.pf-card { background: var(--bg-soft); border: 1px solid var(--border); border-radius: 11px; padding: 16px; }
.pf-card-t { font-size: .76rem; color: var(--text-dim); text-transform: uppercase; letter-spacing: .07em; margin-bottom: 14px; }
.pf-chart { display: flex; align-items: flex-end; gap: 10px; height: 116px; }
.pf-chart span { flex: 1; background: var(--grad-btn); border-radius: 5px 5px 0 0; opacity: .85; }
.pf-findings { display: grid; gap: 12px; }
.pf-findings li { display: flex; align-items: center; gap: 10px; font-size: .86rem; color: var(--text-soft); }
.pf-findings .dot { width: 8px; height: 8px; border-radius: 50%; flex-shrink: 0; }
.pf-findings .dot.high { background: #f87171; }
.pf-findings .dot.med { background: #fbbf24; }
.pf-findings .dot.low { background: #34d399; }
.pf-findings .sev { margin-left: auto; font-size: .7rem; font-weight: 700; padding: 2px 9px; border-radius: 999px; }
.pf-findings .sev.high { background: rgba(248,113,113,.14); color: #fca5a5; }
.pf-findings .sev.med { background: rgba(251,191,36,.14); color: #fcd34d; }
.pf-findings .sev.low { background: rgba(52,211,153,.14); color: #6ee7b7; }
.pf-caption { text-align: center; margin-top: 18px; }
@media (max-width: 760px) {
  .pf-body { grid-template-columns: 1fr; }
  .pf-side { display: none; }
  .pf-kpis { grid-template-columns: repeat(2, 1fr); }
  .pf-cols { grid-template-columns: 1fr; }
}

/* ---------- Responsive ---------- */
@media (max-width: 940px) {
  .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .founder { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
/* Free up nav space on laptops before collapsing to the menu */
@media (max-width: 1080px) {
  .nav-cta .btn-ghost { display: none; }
}
/* Collapse the 7-link nav into the hamburger earlier so it never crowds the logo */
@media (max-width: 900px) {
  .nav-links { display: none; }
  .nav-toggle { display: grid; place-items: center; }
  .nav.open .nav-links {
    display: flex; flex-direction: column; position: absolute; top: 70px; left: 0; right: 0;
    background: var(--bg-soft); border-bottom: 1px solid var(--border); padding: 22px 24px; gap: 18px;
  }
}
@media (max-width: 760px) {
  .nav-links { display: none; }
  .nav-toggle { display: grid; place-items: center; }
  .nav.open .nav-links {
    display: flex; flex-direction: column; position: absolute; top: 70px; left: 0; right: 0;
    background: var(--bg-soft); border-bottom: 1px solid var(--border); padding: 22px 24px; gap: 18px;
  }
  .nav-cta .btn-ghost { display: none; }
  .stats { grid-template-columns: repeat(2,1fr); }
  .grid-2, .grid-3, .grid-4, .roadmap-grid, .contact-grid { grid-template-columns: 1fr; }
  .stat { border-left: none; }
  .section { padding: 64px 0; }
  .cta-band { padding: 40px 24px; }
  .footer-grid { grid-template-columns: 1fr; }
}