/* ============================================================
   MobileVision (Pty) Ltd — shared stylesheet
   Aesthetic: midnight infrastructure. Refined, technical,
   data-sensing. Aqua (sensing/road) + amber (compliance/trust).
   ============================================================ */

:root {
  /* Official MobileVision palette */
  --navy: #0B1628;
  --teal: #00897B;
  --teal-light: #00BFA5;
  --warm-grey: #94A3B8;
  --light-grey: #E2E8F0;

  --bg: #0B1628;              /* Navy */
  --bg-2: #0d1a2f;
  --surface: #12213a;
  --surface-2: #16294699;
  --line: rgba(226, 232, 240, 0.10);
  --line-strong: rgba(226, 232, 240, 0.20);
  --text: #E2E8F0;            /* Light Grey */
  --muted: #94A3B8;           /* Warm Grey */
  --muted-2: #64748B;
  --accent: #00BFA5;          /* Teal Light — primary accent */
  --accent-dim: rgba(0, 191, 165, 0.15);
  --accent-deep: #00897B;     /* Teal — rules, solid surfaces */
  --warm: #00BFA5;            /* (unified to brand teal-light) */
  --warm-dim: rgba(0, 191, 165, 0.15);
  --radius: 14px;
  --maxw: 1180px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);

  --font-display: "Bricolage Grotesque", Georgia, serif;
  --font-body: "IBM Plex Sans", system-ui, sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, monospace;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  font-size: 17px;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  position: relative;
}

/* subtle grain overlay */
body::after {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 9999;
  opacity: 0.035;
  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='3'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

.wrap { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 28px; }

/* ---------- Type ---------- */
h1, h2, h3, h4 { font-family: var(--font-display); font-weight: 600; line-height: 1.04; letter-spacing: -0.02em; }

.eyebrow {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--accent);
  display: inline-flex;
  align-items: center;
  gap: 10px;
}
.eyebrow::before {
  content: "";
  width: 22px; height: 1px;
  background: var(--accent);
  display: inline-block;
}
.eyebrow.warm { color: var(--warm); }
.eyebrow.warm::before { background: var(--warm); }

.lede { font-size: clamp(18px, 2.2vw, 22px); color: var(--muted); max-width: 56ch; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--font-mono);
  font-size: 13px; letter-spacing: 0.08em; text-transform: uppercase;
  padding: 14px 22px;
  border-radius: 100px;
  border: 1px solid var(--line-strong);
  transition: all 0.35s var(--ease);
  cursor: pointer; background: transparent; color: var(--text);
}
.btn .arr { transition: transform 0.35s var(--ease); }
.btn:hover { border-color: var(--accent); color: var(--accent); }
.btn:hover .arr { transform: translateX(4px); }
.btn-solid { background: var(--accent); color: var(--navy); border-color: var(--accent); font-weight: 500; }
.btn-solid:hover { background: transparent; color: var(--accent); }

/* ---------- Nav ---------- */
.nav {
  position: sticky; top: 0; z-index: 100;
  backdrop-filter: blur(14px);
  background: rgba(10, 12, 17, 0.72);
  border-bottom: 1px solid var(--line);
}
.nav-inner { display: flex; align-items: center; justify-content: space-between; height: 70px; }
.brand { display: flex; align-items: center; gap: 11px; font-family: var(--font-body); font-weight: 600; font-size: 19px; letter-spacing: -0.01em; }
.brand .mark { height: 26px; width: auto; flex: none; }

/* Brand lockup with tagline (footer / hero) — tagline rules per brand guide:
   small caps, letter-spaced, below a fine teal rule, never bold, never teal-coloured. */
.lockup { display: inline-flex; align-items: center; gap: 14px; }
.lockup .mark { height: 40px; width: auto; }
.lockup .word { font-family: var(--font-body); font-weight: 600; font-size: 22px; letter-spacing: -0.01em; line-height: 1; }
.lockup .tagline {
  display: block; font-family: var(--font-mono); font-weight: 400;
  font-size: 10.5px; letter-spacing: 0.26em; text-transform: uppercase;
  color: var(--warm-grey); margin-top: 7px; padding-top: 7px;
  border-top: 1px solid var(--teal);
}
.nav-links { display: flex; align-items: center; gap: 30px; }
.nav-links a { font-size: 14.5px; color: var(--muted); transition: color 0.25s; position: relative; }
.nav-links a:hover, .nav-links a.active { color: var(--text); }
.nav-links a.active::after {
  content: ""; position: absolute; left: 0; bottom: -6px; width: 100%; height: 1px; background: var(--accent);
}
.nav-cta { font-family: var(--font-mono); font-size: 12px !important; letter-spacing: 0.08em; text-transform: uppercase;
  border: 1px solid var(--line-strong); padding: 9px 16px; border-radius: 100px; color: var(--text) !important; }
.nav-cta:hover { border-color: var(--accent); }
.nav-toggle { display: none; background: none; border: 0; color: var(--text); cursor: pointer; }
.nav-toggle span { display: block; width: 24px; height: 2px; background: var(--text); margin: 5px 0; transition: 0.3s; }

@media (max-width: 860px) {
  .nav-links {
    position: fixed; inset: 70px 0 auto 0; flex-direction: column; gap: 0;
    background: var(--bg-2); border-bottom: 1px solid var(--line);
    /* Hide fully above the nav: clear the 70px top offset, and use
       visibility/opacity so no sliver can ever peek over the nav bar. */
    transform: translateY(calc(-100% - 80px));
    opacity: 0; visibility: hidden;
    transition: transform 0.4s var(--ease), opacity 0.3s var(--ease), visibility 0s linear 0.4s;
    padding: 8px 0;
  }
  .nav-links.open {
    transform: translateY(0);
    opacity: 1; visibility: visible;
    transition: transform 0.4s var(--ease), opacity 0.3s var(--ease), visibility 0s;
  }
  .nav-links a { padding: 15px 28px; width: 100%; }
  .nav-links a.active::after { display: none; }
  .nav-toggle { display: block; }
}

/* ---------- Hero ---------- */
.hero { position: relative; padding: clamp(70px, 12vw, 140px) 0 clamp(60px, 9vw, 110px); overflow: hidden; }
.hero-grid {
  position: absolute; inset: 0; z-index: 0; opacity: 0.5;
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 64px 64px;
  -webkit-mask-image: radial-gradient(ellipse 80% 70% at 70% 0%, #000 0%, transparent 75%);
          mask-image: radial-gradient(ellipse 80% 70% at 70% 0%, #000 0%, transparent 75%);
}
.hero-glow {
  position: absolute; top: -10%; right: -5%; width: 60vw; height: 60vw; max-width: 760px; max-height: 760px;
  background: radial-gradient(circle, var(--accent-dim) 0%, transparent 62%);
  z-index: 0; pointer-events: none; filter: blur(10px);
}
.hero .wrap { position: relative; z-index: 1; }
.hero h1 { font-size: clamp(40px, 7vw, 84px); max-width: 16ch; margin: 22px 0 26px; }
.hero h1 .hl { color: var(--accent); }
.hero .lede { margin-bottom: 38px; }
.hero-cta { display: flex; gap: 14px; flex-wrap: wrap; }

/* ---------- Sections ---------- */
section { padding: clamp(64px, 9vw, 110px) 0; }
.section-head { max-width: 62ch; margin-bottom: 54px; }
.section-head h2 { font-size: clamp(30px, 4.4vw, 50px); margin: 18px 0 18px; }

/* ---------- Venture cards ---------- */
.ventures { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; }
@media (max-width: 820px) { .ventures { grid-template-columns: 1fr; } }
.vcard {
  position: relative; border: 1px solid var(--line); border-radius: var(--radius);
  background: linear-gradient(180deg, var(--surface), var(--bg-2));
  padding: 36px 34px 32px; overflow: hidden; transition: border-color 0.4s var(--ease), transform 0.4s var(--ease);
}
.vcard:hover { transform: translateY(-4px); border-color: var(--line-strong); }
.vcard .tag { font-family: var(--font-mono); font-size: 11.5px; letter-spacing: 0.18em; text-transform: uppercase; color: var(--accent); }
.vcard.warm .tag { color: var(--warm); }
.vcard h3 { font-size: clamp(24px, 3vw, 32px); margin: 14px 0 14px; }
.vcard p { color: var(--muted); margin-bottom: 22px; }
.vcard .vlink { font-family: var(--font-mono); font-size: 13px; letter-spacing: 0.06em; text-transform: uppercase; color: var(--text); display: inline-flex; gap: 9px; align-items: center; }
.vcard .vlink .arr { transition: transform 0.3s var(--ease); }
.vcard:hover .vlink .arr { transform: translateX(5px); }
.vcard .corner {
  position: absolute; top: -40px; right: -40px; width: 140px; height: 140px; border-radius: 50%;
  background: radial-gradient(circle, var(--accent-dim), transparent 70%);
}
.vcard.warm .corner { background: radial-gradient(circle, var(--warm-dim), transparent 70%); }

/* ---------- Pillars / feature grid ---------- */
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
@media (max-width: 820px) { .grid-3 { grid-template-columns: 1fr; } }
.cell { background: var(--bg-2); padding: 34px 30px; transition: background 0.4s; }
.cell:hover { background: var(--surface); }
.cell .num { font-family: var(--font-mono); font-size: 12px; color: var(--muted-2); letter-spacing: 0.1em; }
.cell h4 { font-size: 20px; margin: 16px 0 10px; }
.cell p { color: var(--muted); font-size: 15.5px; }

/* ---------- Two-col feature ---------- */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center; }
@media (max-width: 880px) { .split { grid-template-columns: 1fr; gap: 36px; } }
.split-visual {
  border: 1px solid var(--line); border-radius: var(--radius); padding: 34px; background: var(--bg-2);
  min-height: 280px; position: relative; overflow: hidden;
}

/* spec list */
.specs { list-style: none; display: grid; gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.specs li { background: var(--bg-2); padding: 20px 24px; display: flex; gap: 18px; align-items: flex-start; }
.specs li .k { font-family: var(--font-mono); font-size: 12px; color: var(--accent); letter-spacing: 0.06em; min-width: 92px; padding-top: 3px; text-transform: uppercase; }
.specs.warm li .k { color: var(--warm); }
.specs li .v { color: var(--text); }
.specs li .v small { display: block; color: var(--muted); font-size: 14px; margin-top: 3px; }

/* buyer tracks */
.tracks { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
@media (max-width: 820px) { .tracks { grid-template-columns: 1fr; } }
.track { border: 1px solid var(--line); border-radius: var(--radius); padding: 30px 26px; background: var(--bg-2); }
.track .ico { width: 42px; height: 42px; border-radius: 10px; background: var(--accent-dim); display: grid; place-items: center; color: var(--accent); margin-bottom: 18px; }
.track h4 { font-size: 19px; margin-bottom: 10px; }
.track p { color: var(--muted); font-size: 15px; margin-bottom: 14px; }
.track .meta { font-family: var(--font-mono); font-size: 11.5px; letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted-2); border-top: 1px solid var(--line); padding-top: 14px; }

/* ---------- Banner / stat strip ---------- */
.strip { border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); background: var(--bg-2); }
.strip-grid { display: grid; grid-template-columns: repeat(4, 1fr); }
@media (max-width: 820px) { .strip-grid { grid-template-columns: 1fr 1fr; } }
.stat { padding: 40px 28px; border-right: 1px solid var(--line); }
.stat:last-child { border-right: 0; }
.stat .big { font-family: var(--font-display); font-size: clamp(30px, 4vw, 44px); color: var(--text); line-height: 1; }
.stat .lbl { font-family: var(--font-mono); font-size: 12px; letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted); margin-top: 12px; }
.stat .big .unit { color: var(--accent); }

/* ---------- CTA ---------- */
.cta-block { text-align: center; }
.cta-block h2 { font-size: clamp(30px, 5vw, 52px); max-width: 18ch; margin: 18px auto 22px; }
.cta-block .lede { margin: 0 auto 34px; }

/* badge */
.badge { display: inline-flex; align-items: center; gap: 10px; font-family: var(--font-mono); font-size: 12px; letter-spacing: 0.1em; text-transform: uppercase;
  border: 1px solid var(--line-strong); border-radius: 100px; padding: 9px 16px; color: var(--text); }
.badge .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--warm); box-shadow: 0 0 0 4px var(--warm-dim); }

/* ---------- About ---------- */
.lead-row { display: grid; grid-template-columns: 1fr 1.3fr; gap: 56px; align-items: start; }
@media (max-width: 880px) { .lead-row { grid-template-columns: 1fr; gap: 32px; } }
.portrait { border: 1px solid var(--line); border-radius: var(--radius); background: linear-gradient(160deg, var(--surface), var(--bg-2)); aspect-ratio: 4/5; display: grid; place-items: center; position: relative; overflow: hidden; }
.portrait .initials { font-family: var(--font-display); font-size: 72px; color: var(--line-strong); }
.portrait .role { position: absolute; bottom: 22px; left: 22px; font-family: var(--font-mono); font-size: 12px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--muted); }

/* placeholder note */
.note { font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.06em; color: var(--muted); background: rgba(148,163,184,0.10); border: 1px dashed rgba(148,163,184,0.45); border-radius: 6px; padding: 3px 8px; display: inline-block; }

/* ---------- Contact ---------- */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; }
@media (max-width: 880px) { .contact-grid { grid-template-columns: 1fr; gap: 36px; } }
.field { margin-bottom: 18px; }
.field label { display: block; font-family: var(--font-mono); font-size: 12px; letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted); margin-bottom: 8px; }
.field input, .field textarea, .field select {
  width: 100%; background: var(--bg-2); border: 1px solid var(--line); border-radius: 10px; padding: 13px 15px;
  color: var(--text); font-family: var(--font-body); font-size: 16px; transition: border-color 0.3s;
}
.field input:focus, .field textarea:focus, .field select:focus { outline: none; border-color: var(--accent); }
.field textarea { resize: vertical; min-height: 130px; }
.contact-info { display: grid; gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; align-content: start; }
.contact-info .row { background: var(--bg-2); padding: 22px 24px; }
.contact-info .row .k { font-family: var(--font-mono); font-size: 11.5px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--muted-2); margin-bottom: 6px; }
.contact-info .row .v { color: var(--text); }

/* ---------- Footer ---------- */
footer { border-top: 1px solid var(--line); background: var(--bg-2); padding: 60px 0 36px; margin-top: 40px; }
.foot-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr; gap: 40px; margin-bottom: 44px; }
@media (max-width: 760px) { .foot-grid { grid-template-columns: 1fr; gap: 28px; } }
.foot-grid p { color: var(--muted); font-size: 15px; max-width: 38ch; margin-top: 16px; }
.foot-col h5 { font-family: var(--font-mono); font-size: 12px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--muted-2); margin-bottom: 16px; }
.foot-col a { display: block; color: var(--muted); font-size: 15px; margin-bottom: 11px; transition: color 0.25s; }
.foot-col a:hover { color: var(--accent); }
.foot-bottom { border-top: 1px solid var(--line); padding-top: 26px; display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; font-family: var(--font-mono); font-size: 12px; color: var(--muted-2); letter-spacing: 0.04em; }

/* ---------- Reveal animation ---------- */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity 0.8s var(--ease), transform 0.8s var(--ease); }
.reveal.in { opacity: 1; transform: none; }
.reveal.d1 { transition-delay: 0.08s; }
.reveal.d2 { transition-delay: 0.16s; }
.reveal.d3 { transition-delay: 0.24s; }
.reveal.d4 { transition-delay: 0.32s; }

@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; }
}