/* Buko marketing site — self-contained, dark/tech aesthetic */
:root {
  --green: #6FC04C;
  --green-deep: #4FA838;
  --navy: #0B1120;
  --navy-2: #111a2e;
  --card: rgba(255, 255, 255, 0.04);
  --card-border: rgba(255, 255, 255, 0.08);
  --text: #E7ECF3;
  --muted: #94A3B8;
  --max: 1120px;
  --radius: 18px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Microsoft YaHei", sans-serif;
  color: var(--text);
  background: var(--navy);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

/* Ambient background glows */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -2;
  background:
    radial-gradient(900px 600px at 78% -8%, rgba(111, 192, 76, 0.18), transparent 60%),
    radial-gradient(700px 500px at 8% 12%, rgba(79, 168, 56, 0.12), transparent 55%),
    linear-gradient(180deg, #0B1120 0%, #0a0f1c 100%);
}
body::after { /* subtle grid */
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  background-image:
    linear-gradient(rgba(255,255,255,0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.025) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(1000px 700px at 50% 0%, #000 30%, transparent 80%);
}

.wrap { max-width: var(--max); margin: 0 auto; padding: 0 24px; }

/* ---- Nav ---- */
header.nav {
  position: sticky; top: 0; z-index: 50;
  backdrop-filter: saturate(150%) blur(14px);
  background: rgba(11, 17, 32, 0.6);
  border-bottom: 1px solid var(--card-border);
}
.nav-inner { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.brand { display: flex; align-items: center; gap: 11px; font-weight: 800; font-size: 19px; letter-spacing: .2px; }
.logo {
  width: 34px; height: 34px; border-radius: 9px;
  background: linear-gradient(145deg, var(--green) 0%, var(--green-deep) 100%);
  display: grid; place-items: center;
  box-shadow: 0 6px 18px rgba(79,168,56,.35);
}
.logo svg { width: 19px; height: 19px; }
.logo-img { width: 34px; height: 34px; border-radius: 9px; box-shadow: 0 6px 18px rgba(79,168,56,.3); }
.lang-select {
  appearance: none; -webkit-appearance: none;
  background: transparent; color: var(--muted);
  border: 1px solid var(--card-border); border-radius: 999px;
  padding: 8px 30px 8px 14px; font-size: 14px; font-weight: 600; cursor: pointer;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%2394A3B8' stroke-width='2.4' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: right 11px center;
  transition: border-color .2s, color .2s;
}
.lang-select:hover { color: var(--text); border-color: rgba(255,255,255,.24); }
.lang-select option { background: #111a2e; color: var(--text); }
.nav-links { display: flex; align-items: center; gap: 26px; }
.nav-links a { color: var(--muted); font-size: 14.5px; font-weight: 500; transition: color .2s; }
.nav-links a:hover { color: var(--text); }
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 10px 18px; border-radius: 999px; font-weight: 700; font-size: 14.5px;
  background: linear-gradient(145deg, var(--green) 0%, var(--green-deep) 100%);
  color: #06210a; border: none; cursor: pointer;
  box-shadow: 0 8px 22px rgba(79,168,56,.32);
  transition: transform .15s ease, box-shadow .2s ease;
}
.btn:hover { transform: translateY(-1px); box-shadow: 0 12px 28px rgba(79,168,56,.42); }
.btn.ghost { background: transparent; color: var(--text); border: 1px solid var(--card-border); box-shadow: none; }
.btn.ghost:hover { border-color: rgba(255,255,255,.24); }

/* ---- Hero ---- */
.hero { padding: 96px 0 72px; }
.hero-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 48px; align-items: center; }
.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 12.5px; font-weight: 700; letter-spacing: .6px; text-transform: uppercase;
  color: var(--green); padding: 6px 12px; border-radius: 999px;
  background: rgba(111,192,76,.1); border: 1px solid rgba(111,192,76,.22); margin-bottom: 22px;
}
h1.title {
  font-size: clamp(38px, 6vw, 62px); line-height: 1.05; font-weight: 850; letter-spacing: -1.2px;
}
h1.title .grad {
  background: linear-gradient(120deg, var(--green) 0%, #a7e58a 50%, var(--green-deep) 100%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.lede { color: var(--muted); font-size: 18.5px; margin: 22px 0 32px; max-width: 540px; }
.cta-row { display: flex; gap: 14px; flex-wrap: wrap; align-items: center; }
.cta-note { color: var(--muted); font-size: 13px; margin-top: 16px; }

/* Phone mock */
.device {
  justify-self: center; width: 280px; height: 570px; border-radius: 42px;
  background: linear-gradient(160deg, #1a2233, #0c1220);
  border: 1px solid var(--card-border); padding: 12px;
  box-shadow: 0 40px 80px rgba(0,0,0,.5), inset 0 0 0 1px rgba(255,255,255,.03);
  position: relative;
}
.device-screen {
  width: 100%; height: 100%; border-radius: 32px; overflow: hidden;
  background: linear-gradient(180deg, #0e1626, #0b1120);
  display: flex; flex-direction: column;
}
.dvc-top { padding: 20px 18px 10px; }
.dvc-title { font-weight: 800; font-size: 17px; }
.dvc-sub { color: var(--muted); font-size: 12px; }
.bubbles { flex: 1; padding: 8px 16px; display: flex; flex-direction: column; gap: 10px; justify-content: flex-end; }
.bubble { max-width: 78%; padding: 9px 13px; border-radius: 15px; font-size: 13px; }
.bubble.them { align-self: flex-start; background: rgba(255,255,255,.07); border-bottom-left-radius: 5px; }
.bubble.me { align-self: flex-end; background: linear-gradient(145deg, var(--green), var(--green-deep)); color: #06210a; border-bottom-right-radius: 5px; font-weight: 600; }
.dvc-input { margin: 12px 16px 18px; height: 38px; border-radius: 999px; background: rgba(255,255,255,.06); border: 1px solid var(--card-border); display: flex; align-items: center; padding: 0 14px; color: var(--muted); font-size: 12.5px; }

/* ---- Stats strip ---- */
.strip { display: flex; gap: 14px; flex-wrap: wrap; margin-top: 56px; }
.chip { color: var(--muted); font-size: 13.5px; padding: 8px 14px; border: 1px solid var(--card-border); border-radius: 999px; background: var(--card); }
.chip b { color: var(--text); }

/* ---- Sections ---- */
section { padding: 80px 0; }
.section-head { text-align: center; max-width: 640px; margin: 0 auto 52px; }
.section-head h2 { font-size: clamp(28px, 4vw, 40px); font-weight: 820; letter-spacing: -.6px; }
.section-head p { color: var(--muted); font-size: 17px; margin-top: 14px; }

.features { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.feature {
  background: var(--card); border: 1px solid var(--card-border); border-radius: var(--radius);
  padding: 26px; transition: transform .2s ease, border-color .2s ease, background .2s ease;
}
.feature:hover { transform: translateY(-4px); border-color: rgba(111,192,76,.3); background: rgba(111,192,76,.05); }
.f-icon {
  width: 46px; height: 46px; border-radius: 12px; display: grid; place-items: center; margin-bottom: 16px;
  background: rgba(111,192,76,.12); border: 1px solid rgba(111,192,76,.2);
}
.f-icon svg { width: 23px; height: 23px; stroke: var(--green); }
.feature h3 { font-size: 18px; font-weight: 750; margin-bottom: 8px; }
.feature p { color: var(--muted); font-size: 14.5px; }

/* ---- CTA band ---- */
.band {
  text-align: center; border: 1px solid var(--card-border); border-radius: 26px; padding: 56px 28px;
  background:
    radial-gradient(600px 300px at 50% -20%, rgba(111,192,76,.18), transparent 70%),
    var(--card);
}
.band h2 { font-size: clamp(26px, 4vw, 38px); font-weight: 820; letter-spacing: -.6px; }
.band p { color: var(--muted); margin: 14px auto 28px; max-width: 480px; }

/* ---- Footer ---- */
footer { border-top: 1px solid var(--card-border); padding: 40px 0; margin-top: 40px; }
.foot-inner { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 18px; }
.foot-links { display: flex; gap: 24px; flex-wrap: wrap; }
.foot-links a { color: var(--muted); font-size: 14px; transition: color .2s; }
.foot-links a:hover { color: var(--text); }
.copy { color: var(--muted); font-size: 13px; }

/* ---- Legal pages ---- */
.legal { max-width: 820px; margin: 0 auto; padding: 56px 24px 80px; }
.legal h1 { font-size: 36px; font-weight: 820; letter-spacing: -.6px; }
.legal .updated { color: var(--muted); font-size: 14px; margin: 10px 0 36px; }
.legal h2 { font-size: 21px; font-weight: 760; margin: 34px 0 12px; color: var(--text); }
.legal p, .legal li { color: #C6D0DD; font-size: 15.5px; }
.legal ul { padding-left: 22px; margin: 10px 0; }
.legal li { margin: 6px 0; }
.legal a { color: var(--green); }
.back { display: inline-flex; align-items: center; gap: 8px; color: var(--muted); font-size: 14px; margin-bottom: 8px; }
.back:hover { color: var(--text); }

@media (max-width: 860px) {
  .hero-grid { grid-template-columns: 1fr; gap: 40px; }
  .device { order: -1; }
  .nav-links .navlink { display: none; }
  .features { grid-template-columns: 1fr; }
  .hero { padding: 64px 0 48px; }
}