/* ============================================================
   CACTUS INVESTMENTS — GLOBAL DESIGN SYSTEM
   Shared tokens, reset, header, footer, buttons, primitives.
   ============================================================ */

/* ---- Fonts ---- */
@font-face { font-family: 'fallback'; src: local('Arial'); }

:root {
  /* Surfaces */
  --ink:        #05080e;
  --ink-2:      #0a0f18;
  --charcoal:   #111824;
  --panel:      rgba(255, 255, 255, .035);
  --panel-2:    rgba(255, 255, 255, .06);
  --line:       rgba(255, 255, 255, .09);
  --line-2:     rgba(255, 255, 255, .14);

  /* Brand */
  --green:      #8dc63f;
  --green-hi:   #b4ee4f;
  --green-deep: #5f9e1f;
  --green-glow: rgba(141, 198, 63, .45);

  /* Text */
  --white:      #f4f7fb;
  --mute:       #9aa6b6;
  --mute-2:     #626d7d;

  /* Type */
  --display: 'Space Grotesk', 'fallback', system-ui, sans-serif;
  --body:    'Inter', 'fallback', system-ui, sans-serif;
  --mono:    'Space Mono', ui-monospace, 'SFMono-Regular', monospace;

  /* Metrics */
  --header-h: 84px;
  --maxw: 1240px;
  --gutter: clamp(20px, 5vw, 64px);
  --radius: 16px;
  --radius-sm: 10px;

  --ease: cubic-bezier(.22, 1, .36, 1);
}

/* ---- Reset ---- */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
  }
}

body {
  font-family: var(--body);
  background: var(--ink);
  color: var(--white);
  line-height: 1.6;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

img, svg, video { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; border: none; background: none; color: inherit; }
ul { list-style: none; }
:focus-visible { outline: 2px solid var(--green-hi); outline-offset: 3px; border-radius: 4px; }
::selection { background: var(--green); color: var(--ink); }

/* ---- Type scale ---- */
h1, h2, h3, h4 { font-family: var(--display); font-weight: 600; line-height: 1.08; letter-spacing: -.02em; }
.h-display { font-size: clamp(2.6rem, 6vw, 5.2rem); font-weight: 700; }
.h1 { font-size: clamp(2.1rem, 4.6vw, 3.6rem); }
.h2 { font-size: clamp(1.7rem, 3.4vw, 2.7rem); }
.h3 { font-size: clamp(1.25rem, 2vw, 1.6rem); }
p  { color: var(--mute); }

.lead { font-size: clamp(1.05rem, 1.5vw, 1.28rem); color: #c4cdd9; line-height: 1.55; }

/* Eyebrow — mono, echoes the etched component codes on the brand's circuit imagery */
.eyebrow {
  font-family: var(--mono);
  font-size: .72rem;
  letter-spacing: .28em;
  text-transform: uppercase;
  color: var(--green);
  display: inline-flex;
  align-items: center;
  gap: .65rem;
}
.eyebrow::before {
  content: "";
  width: 26px; height: 1px;
  background: linear-gradient(90deg, transparent, var(--green));
}

.text-green { color: var(--green); }
.text-white { color: var(--white); }

/* ---- Layout primitives ---- */
.container { width: 100%; max-width: var(--maxw); margin-inline: auto; padding-inline: var(--gutter); }
.section { padding-block: clamp(72px, 11vw, 140px); position: relative; }
.section--tight { padding-block: clamp(56px, 8vw, 96px); }
.stack > * + * { margin-top: 1.1rem; }
.center { text-align: center; }
.measure { max-width: 62ch; }
.measure-tight { max-width: 48ch; }

/* Ambient background grid — the recurring digital-grid motif */
.grid-bg::before {
  content: "";
  position: absolute; inset: 0;
  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 50% 40%, #000 30%, transparent 78%);
          mask-image: radial-gradient(ellipse 80% 70% at 50% 40%, #000 30%, transparent 78%);
  opacity: .5;
  pointer-events: none;
  z-index: 0;
}
.section > .container { position: relative; z-index: 1; }

/* ---- Buttons ---- */
.btn {
  --bg: var(--green);
  display: inline-flex; align-items: center; gap: .6rem;
  padding: .92em 1.6em;
  font-family: var(--body); font-weight: 600; font-size: .92rem;
  letter-spacing: .01em;
  border-radius: 999px;
  transition: transform .35s var(--ease), box-shadow .35s var(--ease), background .25s, color .25s, border-color .25s;
  will-change: transform;
}
.btn svg { width: 16px; height: 16px; transition: transform .35s var(--ease); }
.btn:hover svg { transform: translateX(4px); }

.btn--primary {
  background: var(--green); color: #0b1206;
  box-shadow: 0 0 0 rgba(141,198,63,0);
}
.btn--primary:hover {
  background: var(--green-hi);
  box-shadow: 0 12px 34px -10px var(--green-glow);
  transform: translateY(-2px);
}
.btn--ghost {
  background: transparent; color: var(--white);
  border: 1px solid var(--line-2);
}
.btn--ghost:hover { border-color: var(--green); color: var(--green); transform: translateY(-2px); }

.link-arrow {
  display: inline-flex; align-items: center; gap: .5rem;
  font-weight: 600; font-size: .92rem; color: var(--green);
}
.link-arrow svg { width: 15px; height: 15px; transition: transform .3s var(--ease); }
.link-arrow:hover svg { transform: translateX(5px); }

/* ---- Glass panel ---- */
.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

/* ============================================================
   HEADER
   ============================================================ */
.site-header {
  position: fixed; inset: 0 0 auto 0;
  height: var(--header-h);
  z-index: 100;
  display: flex; align-items: center;
  transition: background .4s var(--ease), border-color .4s, height .4s var(--ease);
  border-bottom: 1px solid transparent;
}
.site-header.is-scrolled {
  height: 68px;
  background: rgba(5, 8, 14, .82);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom-color: var(--line);
}
.header-inner {
  width: 100%; max-width: var(--maxw); margin-inline: auto;
  padding-inline: var(--gutter);
  display: flex; align-items: center; justify-content: space-between; gap: 2rem;
}

.brand { display: flex; align-items: center; gap: .7rem; flex-shrink: 0; }
.brand__mark { width: 38px; height: 38px; flex-shrink: 0; }
.brand__mark .ring { transform-origin: center; animation: spin 26s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
.brand__word { font-family: var(--display); font-weight: 700; font-size: 1.12rem; letter-spacing: .02em; line-height: 1; }
.brand__word span { display: block; font-family: var(--mono); font-weight: 400; font-size: .54rem; letter-spacing: .42em; color: var(--green); margin-top: 3px; }

.nav { display: flex; align-items: center; gap: 2.4rem; }
.nav__list { display: flex; align-items: center; gap: 2rem; }
.nav__link {
  position: relative; font-size: .92rem; font-weight: 500; color: var(--mute);
  padding: .4rem 0; transition: color .25s;
}
.nav__link::after {
  content: ""; position: absolute; left: 0; bottom: -2px; height: 2px; width: 0;
  background: var(--green); transition: width .3s var(--ease);
}
.nav__link:hover { color: var(--white); }
.nav__link[aria-current="page"] { color: var(--white); }
.nav__link[aria-current="page"]::after { width: 100%; }

.nav-toggle {
  display: none; width: 44px; height: 44px; position: relative; z-index: 110;
}
.nav-toggle span { position: absolute; left: 11px; right: 11px; height: 2px; background: var(--white); transition: transform .3s var(--ease), opacity .2s; }
.nav-toggle span:nth-child(1) { top: 16px; }
.nav-toggle span:nth-child(2) { top: 22px; }
.nav-toggle span:nth-child(3) { top: 28px; }
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

@media (max-width: 900px) {
  .nav-toggle { display: block; }
  .nav {
    position: fixed; inset: 0 0 0 auto; width: min(82vw, 360px);
    flex-direction: column; align-items: stretch; justify-content: center; gap: 0;
    background: var(--ink-2); border-left: 1px solid var(--line);
    padding: 2rem var(--gutter);
    transform: translateX(100%); transition: transform .45s var(--ease);
    z-index: 105;
  }
  .nav.is-open { transform: translateX(0); }
  .nav__list { flex-direction: column; align-items: stretch; gap: 0; }
  .nav__link { font-size: 1.3rem; font-family: var(--display); padding: 1rem 0; border-bottom: 1px solid var(--line); }
  .nav__link::after { display: none; }
  .nav .btn { margin-top: 1.6rem; justify-content: center; }
}

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer {
  position: relative;
  background: var(--ink-2);
  border-top: 1px solid var(--line);
  padding-block: clamp(56px, 8vw, 88px) 2rem;
  overflow: hidden;
}
.site-footer::before {
  content: ""; position: absolute; top: 0; left: 50%; transform: translateX(-50%);
  width: 60%; height: 1px;
  background: linear-gradient(90deg, transparent, var(--green), transparent);
  opacity: .6;
}
.footer-grid {
  display: grid; gap: 3rem clamp(2rem, 5vw, 5rem);
  grid-template-columns: 1.6fr 1fr 1fr 1.4fr;
}
.footer-brand .brand { margin-bottom: 1.2rem; }
.footer-brand p { font-size: .95rem; max-width: 34ch; }
.footer-col h4 { font-family: var(--mono); font-size: .7rem; letter-spacing: .22em; text-transform: uppercase; color: var(--green); margin-bottom: 1.2rem; font-weight: 400; }
.footer-col ul { display: grid; gap: .8rem; }
.footer-col a, .footer-col li { font-size: .92rem; color: var(--mute); transition: color .25s; }
.footer-col a:hover { color: var(--green); }
.footer-contact li { display: flex; gap: .7rem; align-items: flex-start; }
.footer-contact svg { width: 16px; height: 16px; color: var(--green); flex-shrink: 0; margin-top: 3px; }
.footer-bottom {
  display: flex; justify-content: space-between; align-items: center; gap: 1rem; flex-wrap: wrap;
  margin-top: clamp(3rem, 5vw, 4.5rem); padding-top: 1.8rem; border-top: 1px solid var(--line);
  font-size: .82rem; color: var(--mute-2);
}
.footer-bottom .mono { font-family: var(--mono); letter-spacing: .04em; }

@media (max-width: 820px) { .footer-grid { grid-template-columns: 1fr 1fr; } .footer-brand { grid-column: 1 / -1; } }
@media (max-width: 520px) { .footer-grid { grid-template-columns: 1fr; } }

/* ============================================================
   SHARED: section headers, CTA banner, page hero
   ============================================================ */
.section-head { max-width: 64ch; margin-bottom: clamp(2.5rem, 5vw, 4rem); }
.section-head .h2 { margin-top: 1rem; }
.section-head p { margin-top: 1.1rem; }
.section-head.center { margin-inline: auto; }

/* Inner page hero (non-home pages) */
.page-hero {
  position: relative; overflow: hidden;
  padding-top: calc(var(--header-h) + clamp(56px, 8vw, 96px));
  padding-bottom: clamp(48px, 7vw, 80px);
  background: radial-gradient(120% 100% at 70% -10%, rgba(141,198,63,.10), transparent 55%), var(--ink);
  border-bottom: 1px solid var(--line);
}
.page-hero .breadcrumb { font-family: var(--mono); font-size: .74rem; letter-spacing: .14em; color: var(--mute-2); margin-bottom: 1.4rem; }
.page-hero .breadcrumb span { color: var(--green); }
.page-hero .h-display { max-width: 16ch; }
.page-hero .lead { margin-top: 1.4rem; max-width: 56ch; }

/* CTA banner (shared across pages) */
.cta-banner { position: relative; overflow: hidden; }
.cta-banner .cta-card {
  position: relative; overflow: hidden;
  border-radius: clamp(20px, 3vw, 32px);
  padding: clamp(2.6rem, 6vw, 5rem) clamp(1.8rem, 5vw, 4.5rem);
  background:
    radial-gradient(110% 140% at 100% 0%, rgba(141,198,63,.22), transparent 55%),
    linear-gradient(120deg, var(--charcoal), var(--ink-2));
  border: 1px solid var(--line-2);
  display: flex; align-items: center; justify-content: space-between; gap: 2rem; flex-wrap: wrap;
}
.cta-card__glow { position: absolute; right: -8%; top: -40%; width: 420px; height: 420px; background: radial-gradient(circle, var(--green-glow), transparent 65%); filter: blur(20px); pointer-events: none; }
.cta-card h2 { position: relative; max-width: 18ch; }
.cta-card .actions { position: relative; display: flex; gap: 1rem; flex-wrap: wrap; }

/* Reveal animation base (progressively enhanced by GSAP; visible by default if JS fails) */
.reveal { opacity: 1; }
.js .reveal { opacity: 0; transform: translateY(26px); }
.js .reveal.is-in { opacity: 1; transform: none; }

/* Utility */
.flow > * + * { margin-top: 1rem; }
.pill {
  display: inline-flex; align-items: center; gap: .5rem;
  font-family: var(--mono); font-size: .72rem; letter-spacing: .1em;
  padding: .45em .9em; border: 1px solid var(--line-2); border-radius: 999px; color: var(--mute);
}
.pill .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--green); box-shadow: 0 0 8px var(--green); }