/* Cosine Ventures Ltd — shared site styles (black, yellow, white) */

:root {
  --bg: #060606;
  --surface: #131313;
  --surface-2: #1C1C1C;
  --ink: #FFFFFF;
  --ink-soft: #B4B4AF;
  --accent: #F4C430;
  --accent-deep: #B8860B;
  --accent-soft: #FBE38A;
  --line: rgba(255,255,255,0.14);
  --radius: 10px;
  --radius-sm: 6px;
  --shadow-md: 0 18px 44px rgba(0,0,0,0.6);
  --focus: #6FA9D6;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; overflow-x: hidden; font-size: clamp(16px, 0.5vw + 14px, 18px); }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: 'Inter', -apple-system, sans-serif;
  font-size: 16px;
  line-height: 1.48;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: inherit; }
.wrap { width: 100%; max-width: 1800px; margin: 0 auto; padding: 0 clamp(20px, 5vw, 80px); position: relative; }
h1, h2, h3 { font-family: 'Fraunces', serif; font-weight: 600; margin: 0; letter-spacing: -0.01em; }
.mono { font-family: 'IBM Plex Mono', monospace; }
::selection { background: var(--accent); color: #16130D; }
a:focus-visible, button:focus-visible { outline: 2px solid var(--focus); outline-offset: 3px; }

/* ---------- Header ---------- */
header {
  position: sticky; top: 0; z-index: 50;
  background: color-mix(in srgb, var(--bg) 85%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.nav-row { display: flex; align-items: center; justify-content: space-between; height: 68px; }
.brand { display: flex; align-items: center; gap: 9px; font-family: 'Fraunces', serif; font-size: 1.14rem; font-weight: 600; text-decoration: none; color: var(--ink); }
.brand .mark { width: 26px; height: 26px; flex: none; }
nav.links { display: flex; gap: 26px; align-items: center; }
nav.links a { text-decoration: none; font-size: 0.92rem; color: var(--ink-soft); padding: 4px 0; border-bottom: 1px solid transparent; transition: color .15s ease, border-color .15s ease; }
nav.links a:hover, nav.links a[aria-current="page"] { color: var(--accent-soft); border-color: var(--accent); }
.menu-toggle {
  display: none; align-items: center; justify-content: center;
  width: 38px; height: 38px; flex: none;
  background: var(--surface); border: 1px solid var(--line); border-radius: 8px;
  cursor: pointer; padding: 0;
}
.menu-toggle svg { width: 19px; height: 19px; color: var(--ink); }
.menu-toggle .icon-close { display: none; }
body.nav-open .menu-toggle .icon-open { display: none; }
body.nav-open .menu-toggle .icon-close { display: block; }
.call-pill { display: flex; align-items: center; gap: 8px; background: var(--accent); color: #16130D; padding: 9px 17px; border-radius: 100px; text-decoration: none; font-size: 0.88rem; font-weight: 600; white-space: nowrap; transition: transform .15s ease, background .15s ease; }
.call-pill:hover { background: var(--accent-soft); transform: translateY(-1px); }
.nav-ctas { display: flex; align-items: center; gap: 10px; }
.whatsapp-btn {
  display: inline-flex; align-items: center; justify-content: center;
  width: 38px; height: 38px; border-radius: 50%;
  border: 1px solid var(--line); background: var(--surface);
  transition: border-color .15s ease, transform .15s ease;
  flex: none;
}
.whatsapp-btn:hover { border-color: #25D366; transform: translateY(-1px); }
.whatsapp-btn svg { width: 19px; height: 19px; }

/* ---------- Buttons ---------- */
.btn { display: inline-flex; align-items: center; gap: 8px; padding: 13px 22px; border-radius: 100px; font-size: 0.94rem; font-weight: 500; text-decoration: none; border: 1px solid transparent; cursor: pointer; transition: transform .15s ease, background .15s ease, border-color .15s ease; }
.btn-primary { background: var(--accent); color: #16130D; font-weight: 600; }
.btn-primary:hover { background: var(--accent-soft); transform: translateY(-2px); }
.btn-ghost { border-color: var(--ink-soft); color: var(--ink); background: transparent; }
.btn-ghost:hover { background: var(--ink); color: var(--bg); border-color: var(--ink); transform: translateY(-2px); }

/* ---------- Photo component: illustration by default, real <img> takes over if present ---------- */
.photo {
  position: relative; border-radius: var(--radius); overflow: hidden;
  background: var(--surface);
  border: 1px solid var(--line);
  min-height: 160px; /* safety net: keeps the box visible even if aspect-ratio isn't supported */
}
.photo svg.fallback-art { position: absolute; inset: 0; width: 100%; height: 100%; }
.photo img.real {
  position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; display: block;
}
.photo-caption {
  position: absolute; left: 16px; bottom: 16px; z-index: 2;
  display: flex; align-items: center; gap: 9px;
  padding: 11px 16px; border-radius: 100px; font-size: 0.82rem; font-weight: 500; color: var(--ink);
  background: rgba(23,20,15,0.72); backdrop-filter: blur(14px) saturate(160%); -webkit-backdrop-filter: blur(14px) saturate(160%);
  border: 1px solid var(--accent); box-shadow: var(--shadow-md);
}
.photo-caption svg { width: 15px; height: 15px; flex: none; }

/* ---------- Section shell ---------- */
section.block { padding: 58px 0; border-bottom: 1px solid var(--line); }
.page-hero { padding: 52px 0 44px; border-bottom: 1px solid var(--line); }
.block-head { display: grid; grid-template-columns: 1fr 1.5fr; gap: 36px; margin-bottom: 34px; align-items: end; }
.block-head h2 { font-size: clamp(1.6rem, 2.8vw, 2.15rem); }
.block-head .desc { color: var(--ink-soft); max-width: 50ch; }
.eyebrow { font-family: 'IBM Plex Mono', monospace; font-size: 0.74rem; color: var(--accent); margin-bottom: 8px; letter-spacing: 0.03em; text-transform: uppercase; }

.strip { border-bottom: 1px solid var(--line); padding: 14px 0; background: var(--surface); }
.strip .wrap { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; justify-content: center; font-size: 0.86rem; color: var(--ink-soft); text-align: center; }
.strip .dot { color: var(--accent); }

/* ---------- Cards ---------- */
.card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 24px 24px; transition: transform .16s ease, box-shadow .16s ease, border-color .16s ease; }
.card:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); border-color: var(--accent-deep); }

footer { padding: 34px 0 28px; background: var(--surface); border-top: 1px solid var(--line); }
.foot-grid { display: flex; justify-content: space-between; align-items: flex-end; gap: 24px; flex-wrap: wrap; }
.foot-brand { font-family: 'Fraunces', serif; font-size: 1rem; }
.foot-addr { color: var(--ink-soft); font-size: 0.83rem; margin-top: 5px; max-width: 34ch; }
.foot-note { color: var(--ink-soft); font-size: 0.76rem; max-width: 40ch; text-align: right; }
.foot-links { display: flex; gap: 18px; margin-top: 10px; }
.foot-links a { font-size: 0.83rem; text-decoration: none; color: var(--ink-soft); }
.foot-links a:hover { color: var(--accent); }

@media (max-width: 860px) {
  .menu-toggle { display: inline-flex; }
  nav.links {
    position: fixed; top: 68px; left: 0; right: 0; z-index: 49;
    flex-direction: column; align-items: stretch; gap: 0;
    background: var(--bg); border-bottom: 1px solid var(--line);
    max-height: 0; overflow: hidden; opacity: 0;
    transition: max-height .3s ease, opacity .25s ease;
  }
  body.nav-open nav.links { max-height: 60vh; opacity: 1; overflow-y: auto; }
  nav.links a {
    padding: 15px 28px; border-bottom: 1px solid var(--line) !important;
    width: 100%; box-sizing: border-box;
  }
  nav.links a:last-child { border-bottom: none !important; }
  .block-head { grid-template-columns: 1fr; }
  .foot-grid { flex-direction: column; align-items: flex-start; }
  .foot-note { text-align: left; }
}
@media (max-width: 520px) {
  .wrap { padding: 0 20px; }
  .brand { font-size: 1rem; }
  .call-pill span.call-text { display: none; }
  .call-pill { padding: 9px 12px; }
  .nav-ctas { gap: 8px; }
}
@media (max-width: 360px) {
  .brand { gap: 6px; }
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } * { transition: none !important; } }