/* ─────────────────────────────────────────────────────────────
 * ZephFlow landing — privacy made easy
 * Design system shared with explorer.zephflow.live + apy.zephflow.live
 * ───────────────────────────────────────────────────────────── */

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

:root {
  --bg:           #0E0E21;
  --bg-card:      #12102a;
  --bg-deep:      #0a0a18;
  --bg-row:       #1a1540;
  --border:       #282554;
  --border-light: rgba(99,72,255,0.15);
  --border-soft:  rgba(99,72,255,0.10);
  --text:         #F5F5FA;
  --text-muted:   #9490b0;
  --text-dim:     #5a5678;
  --text-faint:   #3d3960;
  --accent:       #6348FF;
  --accent-soft:  #b4a0ff;
  --accent-deep:  #4931AF;
  --green:        #3fb950;
  --neon:         #00ff88;
  --amber:        #d29922;
  --red:          #FF616D;
}

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Helvetica, Arial, sans-serif;
  min-height: 100vh;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

a { color: var(--accent-soft); text-decoration: none; transition: color 0.15s; }
a:hover { color: var(--text); }

code, .mono { font-family: 'SF Mono', 'Fira Code', Consolas, ui-monospace, monospace; }

/* ───────── Top bar (consistent with sister sites) ───────── */
.top-bar {
  background: linear-gradient(180deg, var(--bg-deep) 0%, var(--bg) 100%);
  border-bottom: 1px solid var(--border-light);
  padding: 16px 24px;
  position: sticky; top: 0; z-index: 100;
  backdrop-filter: blur(8px);
}
.top-bar-inner {
  max-width: 1200px; margin: 0 auto;
  display: flex; align-items: center; justify-content: space-between;
  gap: 18px; flex-wrap: wrap;
}
.brand { display: flex; align-items: center; gap: 10px;
         font-size: 16px; font-weight: 700; color: var(--text);
         letter-spacing: -0.3px; text-decoration: none; }
.brand:hover { color: var(--text); text-decoration: none; }
.brand-mark {
  width: 30px; height: 30px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center; flex-shrink: 0;
  background: radial-gradient(circle at 35% 30%, #e8d5ff 0%, #b4a0ff 55%, #6348FF 100%);
  color: #0E0E21;
  box-shadow: 0 2px 14px rgba(180,160,255,0.40), inset 0 -1px 2px rgba(73,49,175,0.25);
  border: 1px solid rgba(73,49,175,0.40);
}
.brand-mark svg { width: 60%; height: 60%; display: block; }
.brand-name {
  font-weight: 800; letter-spacing: -0.3px;
  background: linear-gradient(120deg, #b4a0ff 0%, #6348FF 60%, #b4a0ff 100%);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent;
}
.nav-links { display: flex; align-items: center; gap: 18px;
             font-size: 13px; font-weight: 600; }
.nav-links a {
  color: var(--text-muted); padding: 6px 0; text-decoration: none;
  border-bottom: 1px solid transparent; transition: all 0.15s;
}
.nav-links a:hover { color: var(--text); border-bottom-color: var(--accent); }
.nav-links a.cta {
  background: var(--accent); color: #fff;
  padding: 8px 16px; border-radius: 8px; border: none;
}
.nav-links a.cta:hover { background: var(--accent-deep); color: #fff; transform: translateY(-1px); }

/* ───────── Hero ───────── */
.hero {
  position: relative; overflow: hidden;
  background: linear-gradient(180deg, var(--bg) 0%, #1a1540 50%, var(--bg) 100%);
  padding: 100px 24px 100px; text-align: center;
}
.hero::before {
  content: ''; position: absolute; top: -30%; left: -20%;
  width: 140%; height: 160%; pointer-events: none;
  background:
    radial-gradient(ellipse 50% 40% at 25% 30%, rgba(99,72,255,0.18) 0%, transparent 60%),
    radial-gradient(ellipse 60% 50% at 75% 70%, rgba(180,160,255,0.10) 0%, transparent 60%);
  animation: heroDrift 18s ease-in-out infinite alternate;
}
@keyframes heroDrift {
  0%   { transform: translate(0, 0) scale(1); }
  100% { transform: translate(-3%, 2%) scale(1.05); }
}
/* Background starfield */
.stars { position: absolute; inset: 0; pointer-events: none; opacity: 0.55; }
.star { position: absolute; width: 2px; height: 2px; border-radius: 50%;
        background: #b4a0ff; box-shadow: 0 0 5px rgba(180,160,255,0.7);
        animation: twinkle 4s ease-in-out infinite; }
@keyframes twinkle { 0%,100% { opacity: 0.2; } 50% { opacity: 1; } }

.hero-inner { position: relative; z-index: 1; max-width: 880px; margin: 0 auto; }
.hero-pill {
  display: inline-block; font-size: 11px; font-weight: 700;
  letter-spacing: 2px; text-transform: uppercase;
  color: var(--accent-soft); border: 1px solid rgba(180,160,255,0.40);
  padding: 5px 16px; border-radius: 20px; margin-bottom: 22px;
  background: rgba(99,72,255,0.08);
}
.hero h1 {
  font-size: 76px; font-weight: 900; letter-spacing: -2.5px;
  line-height: 1.05; margin-bottom: 18px;
  background: linear-gradient(160deg, var(--text) 35%, var(--accent-soft) 70%, var(--accent) 100%);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent;
}
.hero h1 .glow {
  background: linear-gradient(135deg, #b4a0ff 0%, var(--accent) 50%, var(--neon) 100%);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent;
  filter: drop-shadow(0 0 24px rgba(99,72,255,0.4));
}
.hero-sub {
  font-size: 20px; color: var(--text-muted); margin-bottom: 36px;
  max-width: 680px; margin-left: auto; margin-right: auto;
  line-height: 1.55;
}
.hero-sub strong { color: var(--text); font-weight: 700; }
.hero-cta { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 14px 26px; border-radius: 10px;
  font-size: 14px; font-weight: 700; cursor: pointer; text-decoration: none;
  transition: all 0.2s; border: 1px solid transparent;
  font-family: inherit;
}
.btn-primary { background: var(--accent); color: #fff; box-shadow: 0 4px 18px rgba(99,72,255,0.4); }
.btn-primary:hover { background: var(--accent-deep); transform: translateY(-2px);
                     box-shadow: 0 8px 24px rgba(99,72,255,0.55); color: #fff; }
.btn-ghost { color: var(--text); border-color: var(--border); background: transparent; }
.btn-ghost:hover { border-color: var(--accent); color: var(--text);
                   background: rgba(99,72,255,0.08); transform: translateY(-2px); }

/* Live stats strip under hero */
.hero-stats {
  display: flex; justify-content: center; gap: 36px; margin-top: 56px;
  flex-wrap: wrap;
}
.hero-stat { text-align: center; }
.hero-stat .v {
  font-family: 'SF Mono', Consolas, monospace;
  font-size: 34px; font-weight: 800; letter-spacing: -1px;
  color: var(--text); line-height: 1;
}
.hero-stat .v.neon { color: var(--neon); text-shadow: 0 0 18px rgba(0,255,136,0.4); }
.hero-stat .v.purple { color: var(--accent-soft); }
.hero-stat .k {
  font-size: 11px; font-weight: 700; letter-spacing: 2px;
  text-transform: uppercase; color: var(--text-dim); margin-top: 6px;
}

/* ───────── Section base ───────── */
section.block {
  padding: 96px 24px; position: relative;
}
section.block.alt { background: var(--bg-deep); }
section.block.alt + section.block.alt { border-top: 1px solid var(--border-soft); }
.section-inner { max-width: 1100px; margin: 0 auto; }
.section-eyebrow {
  font-size: 12px; font-weight: 700; letter-spacing: 2.5px;
  text-transform: uppercase; color: var(--accent);
  text-align: center; margin-bottom: 14px;
}
.section-title {
  font-size: 44px; font-weight: 800; letter-spacing: -1.2px;
  line-height: 1.15; text-align: center; margin-bottom: 16px;
}
.section-title .accent { color: var(--accent-soft); }
.section-lead {
  font-size: 18px; color: var(--text-muted); text-align: center;
  max-width: 720px; margin: 0 auto 56px; line-height: 1.6;
}

/* ───────── Asset cards (the 4 coins) ───────── */
.assets-grid {
  display: grid; grid-template-columns: repeat(2, 1fr);
  gap: 18px;
}
@media (max-width: 760px) { .assets-grid { grid-template-columns: 1fr; } }
.asset-card {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: 16px; padding: 28px;
  position: relative; overflow: hidden;
  transition: all 0.25s;
}
.asset-card:hover { transform: translateY(-3px); border-color: rgba(99,72,255,0.4);
                    box-shadow: 0 12px 30px rgba(99,72,255,0.15); }
.asset-card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: var(--asset-color, var(--accent));
  opacity: 0.85;
}
.asset-head { display: flex; align-items: center; gap: 16px; margin-bottom: 14px; }
.asset-coin {
  width: 56px; height: 56px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-family: 'SF Mono', Consolas, monospace; font-weight: 800;
  font-size: 13px; letter-spacing: 0.5px;
  flex-shrink: 0;
  background: var(--coin-bg);
  color: #0a0a18;
  box-shadow: 0 4px 18px var(--coin-glow);
  border: 1.5px solid rgba(0,0,0,0.2);
}
.asset-card.zeph { --asset-color: var(--accent-soft);
                   --coin-bg: radial-gradient(circle at 35% 30%, #e8d5ff 0%, #b4a0ff 55%, #6348FF 100%);
                   --coin-glow: rgba(180,160,255,0.4); }
.asset-card.zsd  { --asset-color: var(--green);
                   --coin-bg: radial-gradient(circle at 35% 30%, #c4ffd9 0%, #7dffb3 55%, #2a8a3c 100%);
                   --coin-glow: rgba(63,185,80,0.4); }
.asset-card.zrs  { --asset-color: var(--amber);
                   --coin-bg: radial-gradient(circle at 35% 30%, #ffe8a3 0%, #ffd35e 55%, #c87f10 100%);
                   --coin-glow: rgba(210,153,34,0.4); }
.asset-card.zys  { --asset-color: var(--neon);
                   --coin-bg: radial-gradient(circle at 35% 30%, #e0fff0 0%, #5cdfff 50%, #00ff88 100%);
                   --coin-glow: rgba(0,255,136,0.45); }
.asset-name {
  font-size: 20px; font-weight: 800; color: var(--text);
  letter-spacing: -0.3px; line-height: 1.2;
}
.asset-tag {
  font-size: 11px; font-weight: 700; letter-spacing: 1.5px;
  text-transform: uppercase; color: var(--text-dim); margin-top: 4px;
}
.asset-desc { font-size: 14px; color: var(--text-muted); line-height: 1.65; margin-bottom: 14px; }
.asset-stats {
  display: flex; gap: 18px; margin-top: 18px;
  border-top: 1px solid var(--border-soft); padding-top: 16px;
}
.asset-stat .v {
  font-family: 'SF Mono', Consolas, monospace;
  font-size: 16px; font-weight: 700; color: var(--text);
}
.asset-stat .k {
  font-size: 10px; font-weight: 700; letter-spacing: 1px;
  text-transform: uppercase; color: var(--text-dim); margin-top: 2px;
}

/* ───────── Feature row (icon + text) ───────── */
.features {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 24px; margin-top: 12px;
}
@media (max-width: 860px) { .features { grid-template-columns: 1fr; } }
.feature {
  background: rgba(18,16,42,0.6); border: 1px solid var(--border-soft);
  border-radius: 14px; padding: 24px;
  transition: border-color 0.2s;
}
.feature:hover { border-color: rgba(180,160,255,0.30); }
.feature-icon {
  width: 44px; height: 44px; border-radius: 10px;
  background: linear-gradient(135deg, rgba(99,72,255,0.20), rgba(180,160,255,0.10));
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 16px;
}
.feature-icon svg { width: 22px; height: 22px; stroke: var(--accent-soft);
                    fill: none; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.feature h3 { font-size: 17px; font-weight: 700; margin-bottom: 8px; color: var(--text); }
.feature p  { font-size: 14px; color: var(--text-muted); line-height: 1.65; }

/* ───────── Yield highlight ───────── */
.yield-card {
  background:
    radial-gradient(ellipse at 30% 50%, rgba(0,255,136,0.08) 0%, transparent 60%),
    linear-gradient(180deg, var(--bg-card) 0%, rgba(18,16,42,0.85) 100%);
  border: 1px solid rgba(0,255,136,0.30);
  border-radius: 18px; padding: 40px;
  display: grid; grid-template-columns: 1fr auto;
  gap: 32px; align-items: center;
  box-shadow: 0 0 40px rgba(0,255,136,0.08);
}
@media (max-width: 760px) {
  .yield-card { grid-template-columns: 1fr; text-align: center; padding: 32px 24px; }
}
.yield-eyebrow {
  font-size: 11px; font-weight: 700; letter-spacing: 2.5px;
  text-transform: uppercase; color: var(--neon); margin-bottom: 10px;
}
.yield-card h3 {
  font-size: 30px; font-weight: 800; letter-spacing: -0.6px; line-height: 1.2;
  margin-bottom: 12px;
}
.yield-card p { font-size: 15px; color: var(--text-muted); margin-bottom: 18px; }
.yield-apy {
  font-family: 'SF Mono', Consolas, monospace;
  font-size: 64px; font-weight: 900; letter-spacing: -2px;
  color: var(--neon);
  text-shadow: 0 0 28px rgba(0,255,136,0.5);
  line-height: 1;
  text-align: center;
}
.yield-apy-label {
  font-size: 11px; font-weight: 700; letter-spacing: 2px;
  text-transform: uppercase; color: var(--text-dim);
  text-align: center; margin-top: 8px;
}

/* ───────── Footer ───────── */
.site-footer {
  background: var(--bg-deep); border-top: 1px solid var(--border);
  padding: 48px 24px 28px; color: var(--text-muted);
}
.footer-inner {
  max-width: 1100px; margin: 0 auto;
  display: grid; grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 32px;
}
@media (max-width: 760px) { .footer-inner { grid-template-columns: 1fr 1fr; } }
.footer-brand p { font-size: 13px; margin-top: 12px; max-width: 280px; }
.footer-col h5 {
  font-size: 11px; font-weight: 700; letter-spacing: 2px;
  text-transform: uppercase; color: var(--text-dim); margin-bottom: 14px;
}
.footer-col a {
  display: block; font-size: 13px; padding: 4px 0;
  color: var(--text-muted); text-decoration: none;
}
.footer-col a:hover { color: var(--text); }
.footer-bottom {
  max-width: 1100px; margin: 36px auto 0; padding-top: 20px;
  border-top: 1px solid var(--border);
  font-size: 11px; color: var(--text-faint);
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: 10px;
}

/* ───────── Mobile tightening ───────── */
@media (max-width: 640px) {
  .top-bar { padding: 12px 14px; }
  .nav-links { gap: 12px; font-size: 12px; }
  .hero { padding: 64px 18px 64px; }
  .hero h1 { font-size: 44px; letter-spacing: -1.5px; }
  .hero-sub { font-size: 16px; }
  .hero-stats { gap: 24px; margin-top: 36px; }
  .hero-stat .v { font-size: 26px; }
  section.block { padding: 56px 18px; }
  .section-title { font-size: 30px; letter-spacing: -0.8px; }
  .section-lead { font-size: 15px; margin-bottom: 36px; }
  .asset-card { padding: 22px; }
  .asset-coin { width: 48px; height: 48px; font-size: 12px; }
  .asset-name { font-size: 18px; }
  .yield-apy { font-size: 48px; }
}