/* ══════════════════════════════════════════════════════════════════════════
   Dzi landing page — built on the app's own "Warm Precision" design system
   (see docs/design-system.md). Same tokens, same 3-font stack, same shadow
   language, extended for a marketing surface.
   ══════════════════════════════════════════════════════════════════════════ */

/* Clash Display / Cabinet Grotesk / General Sans are loaded via the <link>
   tag in index.html's <head> — that's a real @font-face-bearing stylesheet
   from Fontshare. Do not redeclare @font-face here with a CSS-endpoint URL
   as its src; that's not a font file and silently fails, fighting the
   correctly-loaded face for the same family name. */

:root {
  --accent: #e8721a;
  --accent-light: #ff9472;
  --accent-grad: linear-gradient(135deg, #ff9472 0%, #e8721a 100%);
  --accent-08: rgba(232, 114, 26, 0.08);
  --accent-12: rgba(232, 114, 26, 0.12);
  --accent-16: rgba(232, 114, 26, 0.16);
  --accent-40: rgba(232, 114, 26, 0.4);
  --green: #34bb7a;
  --green-12: rgba(52, 187, 122, 0.14);
  --red: #e84a4a;

  --bg: #161618;
  --bg-raise: #1b1b1e;
  --card: #1e1e22;
  --card-alt: #252528;
  --text-1: #ffffff;
  --text-2: #a0a0b0;
  --text-3: #8f8f98; /* lightened from the app's #606070 — that's 2.9:1 on this bg, fails WCAG AA */
  --border: #2c2c30;
  --accent-cta: #b8560f; /* darker than --accent specifically for white-text buttons — #e8721a is only 3.1:1 with white */
  --card-border-grad: linear-gradient(135deg, rgba(232, 114, 26, 0.28), rgba(255, 255, 255, 0.08));

  --shadow-card: 0 12px 28px -14px rgba(0, 0, 0, 0.55);
  --shadow-btn: 0 10px 22px -8px rgba(0, 0, 0, 0.45);
  --inner-top: inset 0 1px 0 rgba(255, 255, 255, 0.07);
  --inner-bottom: inset 0 -1px 0 rgba(0, 0, 0, 0.25);

  --font-display: "Clash Display", "SF Pro Display", system-ui, sans-serif;
  --font-numeric: "Cabinet Grotesk", "SF Pro", system-ui, sans-serif;
  --font-sans: "General Sans", "SF Pro Text", -apple-system, system-ui, sans-serif;
  --font-mono: ui-monospace, "SF Mono", Menlo, monospace;

  color-scheme: dark;
}

@media (prefers-color-scheme: light) {
  :root {
    --bg: #f2f2f7;
    --bg-raise: #ffffff;
    --card: #ffffff;
    --card-alt: #f0efef;
    --text-1: #1c1c1e;
    --text-2: #6e6e80;
    --text-3: #6b6b76; /* darkened from the app's #a0a0a8 — that fails WCAG AA (2.3:1) on this bg at body-text sizes */
    --border: #e5e5ea;
    --card-border-grad: linear-gradient(135deg, rgba(232, 114, 26, 0.18), rgba(0, 0, 0, 0.04));
    --shadow-card: 0 8px 28px -10px rgba(0, 0, 0, 0.14);
    --inner-top: inset 0 1px 0 rgba(255, 255, 255, 0.9);
    --inner-bottom: inset 0 -1px 0 rgba(0, 0, 0, 0.06);
    color-scheme: light;
  }
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text-1);
  font-family: var(--font-sans);
  -webkit-font-smoothing: antialiased;
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }

/* Horizontal-scroll guard lives here, not on body, so body never clips a
   positioned child that might legitimately need to escape it. */
#top { overflow-x: hidden; }

.wrap { max-width: 1180px; margin: 0 auto; padding: 0 28px; }

@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
}

/* ── Grain / texture backdrop ─────────────────────────────────────────── */
.grain {
  position: fixed; inset: 0; pointer-events: none; z-index: 0;
  opacity: 0.035; mix-blend-mode: overlay;
  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='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* ── Nav ───────────────────────────────────────────────────────────────── */
.nav {
  position: sticky; top: 0; z-index: 50;
  display: flex; align-items: center; justify-content: space-between;
  padding: 18px 28px;
  background: color-mix(in srgb, var(--bg) 78%, transparent);
  backdrop-filter: blur(18px); -webkit-backdrop-filter: blur(18px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s, background 0.3s;
}
.nav.scrolled { border-bottom-color: var(--border); }
.nav-brand { display: flex; align-items: center; gap: 10px; }
.nav-brand span {
  font-family: var(--font-display); font-weight: 700; font-size: 19px; letter-spacing: -0.02em;
}
.nav-links { display: flex; align-items: center; gap: 32px; }
.nav-links a {
  font-size: 14px; font-weight: 600; color: var(--text-2);
  transition: color 0.15s;
}
.nav-links a:hover { color: var(--text-1); }
.nav-cta {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--accent-cta); color: #fff;
  font-size: 14px; font-weight: 700; letter-spacing: 0.01em;
  padding: 10px 20px; border-radius: 999px;
  box-shadow: var(--shadow-btn);
  transition: transform 0.15s cubic-bezier(.16,1,.3,1), filter 0.15s;
}
.nav-cta:hover { transform: translateY(-1px); filter: brightness(1.06); }
.nav-mobile-toggle { display: none; }

@media (max-width: 780px) {
  .nav-links { display: none; }
  .nav-mobile-toggle { display: block; }
}

/* ── Hero ──────────────────────────────────────────────────────────────── */
.hero {
  position: relative; z-index: 1;
  padding: 96px 0 80px;
  display: grid; grid-template-columns: 1.05fr 0.95fr; gap: 48px; align-items: center;
}
@media (max-width: 980px) {
  .hero { grid-template-columns: 1fr; padding: 56px 0 48px; text-align: center; }
  .hero-copy { order: 1; }
  .hero-stage { order: 2; }
}

.hero h1 {
  font-family: var(--font-display); font-weight: 700;
  font-size: clamp(38px, 5.2vw, 64px); line-height: 1.02; letter-spacing: -0.03em;
  margin: 22px 0 20px;
  opacity: 0; animation: rise 0.8s cubic-bezier(.16,1,.3,1) 0.15s forwards;
}
.hero h1 em { font-style: normal; color: var(--accent); }
.hero p.lead {
  font-size: 18px; line-height: 1.55; color: var(--text-2); max-width: 46ch;
  opacity: 0; animation: rise 0.8s cubic-bezier(.16,1,.3,1) 0.25s forwards;
}
@media (max-width: 980px) { .hero p.lead { margin: 0 auto; } }

.hero-ctas {
  display: flex; gap: 14px; margin-top: 32px;
  opacity: 0; animation: rise 0.8s cubic-bezier(.16,1,.3,1) 0.35s forwards;
}
@media (max-width: 980px) { .hero-ctas { justify-content: center; flex-wrap: wrap; } }

.btn {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--font-sans); font-size: 15px; font-weight: 700;
  padding: 15px 26px; border-radius: 16px; border: none; cursor: pointer;
  transition: transform 0.15s cubic-bezier(.16,1,.3,1), filter 0.15s, background 0.15s;
}
.btn-primary { background: var(--accent-cta); color: #fff; box-shadow: var(--shadow-btn); }
.btn-primary:hover { transform: translateY(-2px); filter: brightness(1.05); }
.btn-ghost { background: var(--card); color: var(--text-1); border: 1px solid var(--border); }
.btn-ghost:hover { background: var(--card-alt); transform: translateY(-2px); }

.hero-stats {
  display: flex; gap: 36px; margin-top: 48px; padding-top: 28px; border-top: 1px solid var(--border);
  opacity: 0; animation: rise 0.8s cubic-bezier(.16,1,.3,1) 0.45s forwards;
}
@media (max-width: 980px) { .hero-stats { justify-content: center; flex-wrap: wrap; gap: 28px 40px; } }
.hero-stat .num {
  font-family: var(--font-numeric); font-weight: 800; font-size: 28px; letter-spacing: -0.03em;
  font-variant-numeric: tabular-nums;
}
.hero-stat .label { font-size: 12.5px; color: var(--text-3); font-weight: 600; margin-top: 3px; }

/* ── Phone stage ───────────────────────────────────────────────────────── */
.hero-stage {
  position: relative; display: flex; justify-content: center; align-items: center;
  min-height: 560px;
}
.phone {
  position: relative; z-index: 2; width: 360px;
  border-radius: 42px; background: #0d0d0f;
  padding: 12px; box-shadow: 0 30px 50px -20px rgba(0,0,0,0.55);
  opacity: 0; animation: phone-in 1s cubic-bezier(.16,1,.3,1) 0.3s forwards;
}
.phone-screen {
  background: var(--bg); border-radius: 32px; overflow: hidden;
  padding: 20px 16px 18px; position: relative;
}
.phone-notch {
  position: absolute; top: 8px; left: 50%; transform: translateX(-50%);
  width: 90px; height: 22px; background: #0d0d0f; border-radius: 14px; z-index: 5;
}
.ph-row { display: flex; align-items: center; justify-content: space-between; margin: 26px 0 18px; }
.ph-eyebrow { font-size: 10px; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; color: var(--text-3); }
.ph-name { font-family: var(--font-display); font-size: 15px; font-weight: 600; margin-top: 2px; }
.ph-avatar {
  width: 30px; height: 30px; border-radius: 50%; background: var(--accent-cta);
  display: flex; align-items: center; justify-content: center; line-height: 1;
  font-family: var(--font-sans); font-weight: 800; font-size: 13px; color: #fff;
}

.ph-hero {
  background: var(--card); border-radius: 22px; padding: 18px; position: relative;
  box-shadow: var(--shadow-card), var(--inner-top), var(--inner-bottom);
}
.ph-hero .t-eyebrow { font-size: 10px; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; color: var(--text-3); }
.ph-kes {
  font-family: var(--font-numeric); font-weight: 800; font-size: 30px; letter-spacing: -0.03em;
  margin-top: 6px; font-variant-numeric: tabular-nums;
}
.ph-kes span { font-family: var(--font-display); font-size: 14px; font-weight: 600; color: var(--text-2); margin-left: 4px; }
.ph-sub { font-family: var(--font-mono); font-size: 11px; color: var(--text-3); margin-top: 6px; }
.ph-chip {
  display: inline-flex; align-items: center; gap: 5px; margin-top: 14px;
  background: var(--green-12); color: var(--green); font-size: 10px; font-weight: 700;
  padding: 4px 9px; border-radius: 999px;
}
.ph-chip .d { width: 5px; height: 5px; border-radius: 50%; background: var(--green); }

.ph-actions { display: flex; gap: 6px; margin: 16px 0; }
.ph-action {
  flex: 1; display: flex; flex-direction: column; align-items: center; gap: 6px;
  background: var(--card-alt); border: 1px solid var(--border); border-radius: 14px; padding: 10px 8px;
}
.ph-action .ic {
  width: 24px; height: 24px; border-radius: 7px; background: var(--accent-12);
  display: flex; align-items: center; justify-content: center; color: var(--accent-light); font-size: 12px; font-weight: 800;
}
.ph-action span { font-size: 11px; font-weight: 700; letter-spacing: 0.01em; text-transform: uppercase; color: var(--text-2); line-height: 1.2; text-align: center; }

.ph-tx { display: flex; align-items: center; gap: 10px; padding: 9px 2px; }
.ph-tx .ic { width: 32px; height: 32px; border-radius: 10px; background: var(--card-alt); display:flex; align-items:center; justify-content:center; font-size: 13px; }
.ph-tx .meta { flex: 1; min-width: 0; }
.ph-tx .name { font-size: 12.5px; font-weight: 700; }
.ph-tx .sub { font-size: 11px; color: var(--text-3); margin-top: 1px; }
.ph-tx .amt { font-family: var(--font-numeric); font-size: 12.5px; font-weight: 700; font-variant-numeric: tabular-nums; }
.ph-tx .amt.pos { color: var(--green); }

.float-card {
  position: absolute; z-index: 3; background: var(--card);
  border-radius: 16px; padding: 11px 14px; box-shadow: var(--shadow-card);
  font-size: 11px;
}
.float-card.mpesa {
  top: 58px; left: -38px;
  opacity: 0; animation: float-in 0.7s cubic-bezier(.16,1,.3,1) 0.9s forwards, float-bob 5s ease-in-out 1.6s infinite;
}
.float-card.mpesa .t { font-weight: 700; color: var(--green); display:flex; align-items:center; gap:6px; }
.float-card.mpesa .s { color: var(--text-3); margin-top: 2px; font-size: 11px; }
.float-card.rate {
  bottom: 26px; right: -12px;
  opacity: 0; animation: float-in 0.7s cubic-bezier(.16,1,.3,1) 1.1s forwards, float-bob 6s ease-in-out 1.8s infinite reverse;
}
.float-card.rate .t { font-family: var(--font-numeric); font-weight: 700; font-size: 13px; }
.float-card.rate .s { color: var(--text-3); font-size: 11px; margin-top: 2px; }
@media (max-width: 620px) { .float-card { display: none; } }

/* ── Logo strip ────────────────────────────────────────────────────────── */
.strip { padding: 36px 0; border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.strip-inner { display: flex; align-items: center; justify-content: center; gap: 48px; flex-wrap: wrap; }
.strip-item { display: flex; align-items: center; gap: 8px; color: var(--text-3); font-size: 13px; font-weight: 700; letter-spacing: 0.01em; }
.strip-item svg { opacity: 0.55; }

/* ── Section shell ─────────────────────────────────────────────────────── */
.section { padding: 100px 0; position: relative; z-index: 1; }
.section-head { max-width: 640px; margin: 0 auto 56px; text-align: center; }
.kicker {
  display: inline-block; font-size: 12px; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--accent); margin-bottom: 14px;
}
.section-head h2 {
  font-family: var(--font-display); font-weight: 700; font-size: clamp(28px, 3.6vw, 42px);
  letter-spacing: -0.02em; margin: 0 0 14px; line-height: 1.1;
}
.section-head p { color: var(--text-2); font-size: 16px; line-height: 1.6; margin: 0; }

.reveal { opacity: 0; transform: translateY(24px); transition: opacity 0.7s cubic-bezier(.16,1,.3,1), transform 0.7s cubic-bezier(.16,1,.3,1); }
.reveal.in { opacity: 1; transform: translateY(0); }

/* ── How it works ──────────────────────────────────────────────────────── */
.flow { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; counter-reset: step; }
@media (max-width: 860px) { .flow { grid-template-columns: 1fr; } }
.flow-step {
  background: var(--card); border: 1px solid var(--border); border-radius: 22px; padding: 28px 24px;
  position: relative;
}
.flow-step .n {
  font-family: var(--font-numeric); font-weight: 800; font-size: 13px; color: var(--accent);
  font-variant-numeric: tabular-nums; letter-spacing: 0.02em;
  display: block; margin-bottom: 14px;
}
.flow-step h3 { font-family: var(--font-display); font-size: 18px; font-weight: 600; margin: 0 0 8px; letter-spacing: -0.01em; }
.flow-step p { color: var(--text-2); font-size: 14.5px; line-height: 1.6; margin: 0; }
.flow-arrow { display: none; }
@media (min-width: 861px) {
  .flow-step:not(:last-child)::after {
    content: ""; position: absolute; top: 50%; right: -20px; width: 20px; height: 1px;
    background: linear-gradient(90deg, var(--border), transparent);
  }
}

/* ── Feature grid ──────────────────────────────────────────────────────── */
.grid3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
@media (max-width: 860px) { .grid3 { grid-template-columns: 1fr; } }
.feature {
  background: var(--card); border: 1px solid var(--border); border-radius: 22px; padding: 26px 24px;
  transition: transform 0.25s cubic-bezier(.16,1,.3,1), border-color 0.25s;
}
.feature:hover { transform: translateY(-4px); border-color: var(--accent-40); }
.feature-head { display: flex; align-items: baseline; gap: 10px; margin-bottom: 8px; }
.feature .ic {
  font-family: var(--font-display); font-size: 20px; font-weight: 600; color: var(--accent);
  line-height: 1; flex-shrink: 0;
}
.feature h3 { font-size: 16.5px; font-weight: 700; margin: 0; letter-spacing: -0.01em; }
.feature p { color: var(--text-2); font-size: 14px; line-height: 1.6; margin: 0; }

/* ── Resolver demo ─────────────────────────────────────────────────────── */
.resolver {
  padding: 0; display: grid; grid-template-columns: 0.9fr 1.1fr; gap: 44px; align-items: center;
}
@media (max-width: 900px) { .resolver { grid-template-columns: 1fr; } }

.resolver-copy .kicker { margin-bottom: 12px; }
.resolver-copy h2 { font-family: var(--font-display); font-size: clamp(24px, 3vw, 32px); font-weight: 700; letter-spacing: -0.02em; margin: 0 0 14px; }
.resolver-copy p { color: var(--text-2); font-size: 15px; line-height: 1.65; margin: 0 0 10px; }
.resolver-copy .fine { font-size: 12.5px; color: var(--text-3); margin-top: 18px; display: flex; gap: 8px; align-items: flex-start; }

.resolver-panel {
  background: var(--bg); border: 1px solid var(--border); border-radius: 20px; padding: 26px;
  position: relative; z-index: 1;
}
.resolver-panel label { font-size: 12px; font-weight: 700; letter-spacing: 0.04em; text-transform: uppercase; color: var(--text-3); }
.resolver-input-row { display: flex; gap: 10px; margin-top: 10px; }
.resolver-input-row input {
  flex: 1; background: var(--card-alt); border: 1.5px solid var(--border); border-radius: 14px;
  padding: 14px 16px; font-size: 16px; font-weight: 600; color: var(--text-1); outline: none;
  transition: border-color 0.2s, box-shadow 0.2s; font-family: var(--font-sans);
}
.resolver-input-row input:focus { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-08); }
.resolver-input-row button {
  background: var(--accent-cta); color: #fff; border: none; border-radius: 14px; padding: 0 22px;
  font-weight: 700; font-size: 14px; cursor: pointer; box-shadow: var(--shadow-btn);
  transition: transform 0.15s, filter 0.15s; white-space: nowrap;
}
.resolver-input-row button:hover { filter: brightness(1.06); }
.resolver-input-row button:disabled { opacity: 0.5; cursor: default; }

.resolver-result { margin-top: 18px; min-height: 92px; }
.resolver-result .placeholder { font-size: 13px; color: var(--text-3); padding: 14px 0; }
.resolver-result .error { font-size: 13.5px; color: var(--red); font-weight: 600; padding: 10px 0; }
.resolver-result .out {
  border-top: 1px solid var(--border); padding-top: 16px;
  animation: pop-in 0.35s cubic-bezier(.16,1,.3,1) both;
}
.resolver-result .out .row { display: flex; justify-content: space-between; align-items: center; margin-bottom: 8px; }
.resolver-result .out .row:last-child { margin-bottom: 0; }
.resolver-result .out .k { font-size: 11.5px; color: var(--text-3); font-weight: 700; text-transform: uppercase; letter-spacing: 0.04em; }
.resolver-result .out .v { font-family: var(--font-mono); font-size: 12.5px; word-break: break-all; text-align: right; max-width: 68%; }
.resolver-result .out .v.addr { color: var(--accent); }
.out-inspect {
  display: inline-flex; align-items: center; gap: 6px; margin-top: 12px;
  font-size: 12.5px; font-weight: 700; color: var(--accent-light);
  transition: color 0.15s;
}
.out-inspect:hover { color: var(--accent); text-decoration: underline; }
.resolver-badge {
  display: inline-flex; align-items: center; gap: 6px; font-size: 11px; font-weight: 700; color: var(--text-3);
  margin-top: 14px;
}
.resolver-badge .d { width: 6px; height: 6px; border-radius: 50%; background: var(--accent); }

/* ── Open source CTA ───────────────────────────────────────────────────── */
.oss {
  background: var(--card);
  border: 1px solid var(--border); border-radius: 28px; padding: 56px 48px;
  text-align: center;
}
.oss > div { max-width: 52ch; margin: 0 auto; }
.oss h2 { font-family: var(--font-display); font-size: clamp(24px, 3vw, 32px); font-weight: 700; letter-spacing: -0.02em; margin: 0 0 10px; }
.oss p { color: var(--text-2); font-size: 15px; margin: 0; max-width: 44ch; }
.oss-ctas { display: flex; gap: 12px; flex-shrink: 0; }

/* ── Footer ────────────────────────────────────────────────────────────── */
footer { border-top: 1px solid var(--border); padding: 40px 0; }
.foot-row { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 16px; }
.foot-brand { display: flex; align-items: center; gap: 9px; color: var(--text-3); font-size: 13px; font-weight: 600; }
.foot-links { display: flex; gap: 22px; }
.foot-links a { font-size: 13px; font-weight: 600; color: var(--text-3); transition: color 0.15s; }
.foot-links a:hover { color: var(--text-1); }

/* ── Keyframes ─────────────────────────────────────────────────────────── */
@keyframes rise { from { opacity: 0; transform: translateY(16px); } to { opacity: 1; transform: translateY(0); } }
@keyframes phone-in { from { opacity: 0; transform: translateY(40px) rotate(-4deg) scale(0.94); } to { opacity: 1; transform: translateY(0) rotate(-3deg) scale(1); } }
@keyframes float-in { from { opacity: 0; transform: translateY(14px) scale(0.9); } to { opacity: 1; transform: translateY(0) scale(1); } }
@keyframes float-bob { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-8px); } }
@keyframes pop-in { from { opacity: 0; transform: scale(0.97); } to { opacity: 1; transform: scale(1); } }
@keyframes spin { to { transform: rotate(360deg); } }
.spinner { width: 15px; height: 15px; border-radius: 50%; border: 2px solid rgba(255,255,255,0.4); border-top-color: #fff; animation: spin 0.7s linear infinite; display: inline-block; }
