/* =========================================================
   FinChain.cash — shared design system
   Original cyberpunk HUD aesthetic (aruble.xyz style)
   ========================================================= */

@import url('https://fonts.googleapis.com/css2?family=Rajdhani:wght@500;600;700&family=Inter:wght@400;500;600&family=JetBrains+Mono:wght@400;500;600&display=swap');

:root {
  --bg: #0a0e17;
  --panel: #111826;
  --panel-alt: #0d1420;
  --border: #1c2740;
  --cyan: #2dd4f0;
  --magenta: #ff3d9a;
  --gold: #f0b429;
  --green: #00ff87;
  --text: #dce4f0;
  --muted: #5c6b85;

  /* aliases kept for backward compatibility with existing markup */
  --primary: var(--magenta);
  --accent: var(--cyan);
  --success: var(--green);
  --warning: var(--gold);
  --destructive: var(--magenta);
  --secondary: var(--panel-alt);

  --font-display: 'Rajdhani', sans-serif;
  --font-body: 'Inter', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  background-image: radial-gradient(ellipse at top, rgba(45,212,240,0.06), transparent 60%);
  color: var(--text);
  font-family: var(--font-body);
  line-height: 1.7;
  min-height: 100vh;
}

a { color: inherit; }

.wrap { max-width: 1100px; margin: 0 auto; padding: 0 24px; }
.wrap-narrow { max-width: 760px; margin: 0 auto; padding: 0 24px; }

/* ---------- typography ---------- */
h1, h2, h3 {
  font-family: var(--font-display);
  letter-spacing: 0.02em;
  margin: 0;
}
.eyebrow {
  color: var(--cyan);
  font-family: var(--font-display);
  letter-spacing: 0.1em;
  font-size: 0.72rem;
  text-transform: uppercase;
}
.mono { font-family: var(--font-mono); }
.muted { color: var(--muted); }
.glow { text-shadow: 0 0 20px rgba(45,212,240,0.3); color: var(--text); }
.cash-accent { color: var(--green); text-shadow: 0 0 16px rgba(0,255,135,0.5); }

/* ---------- nav ---------- */
.site-header {
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  background: rgba(10,14,23,0.85);
  backdrop-filter: blur(8px);
  z-index: 50;
}
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 24px;
  max-width: 1100px;
  margin: 0 auto;
}
.logo {
  display: flex;
  align-items: center;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.25rem;
  letter-spacing: 0.04em;
  text-decoration: none;
  color: var(--text);
}
.logo-icon { width: 30px; height: 30px; margin-right: 10px; border-radius: 8px; }
.logo-text { display: inline-flex; }
.nav-links { display: flex; gap: 28px; list-style: none; margin: 0; padding: 0; }
.nav-links a {
  text-decoration: none;
  font-family: var(--font-display);
  font-size: 0.85rem;
  letter-spacing: 0.06em;
  color: var(--muted);
  transition: color 0.15s;
}
.nav-links a:hover, .nav-links a.active { color: var(--cyan); }
.nav-toggle { display: none; background: none; border: none; color: var(--text); font-size: 1.4rem; cursor: pointer; }

@media (max-width: 720px) {
  .nav-links { position: absolute; top: 100%; left: 0; right: 0; background: var(--panel); flex-direction: column; gap: 0; border-bottom: 1px solid var(--border); display: none; }
  .nav-links.open { display: flex; }
  .nav-links a { padding: 14px 24px; border-top: 1px solid var(--border); }
  .nav-toggle { display: block; }
}

/* ---------- footer ---------- */
.site-footer { border-top: 1px solid var(--border); margin-top: 80px; padding: 32px 24px; font-size: 0.8rem; color: var(--muted); }
.footer-inner { max-width: 1100px; margin: 0 auto; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px; }

/* ---------- bracket panel ---------- */
.panel { position: relative; background: var(--panel); padding: 24px; }
.panel::before, .panel::after, .panel .br::before, .panel .br::after { content: ''; position: absolute; width: 14px; height: 14px; }
.panel::before { top: 0; left: 0; border-top: 2px solid var(--cyan); border-left: 2px solid var(--cyan); }
.panel::after { top: 0; right: 0; border-top: 2px solid var(--cyan); border-right: 2px solid var(--cyan); }
.panel .br::before { bottom: 0; left: 0; border-bottom: 2px solid var(--cyan); border-left: 2px solid var(--cyan); }
.panel .br::after { bottom: 0; right: 0; border-bottom: 2px solid var(--cyan); border-right: 2px solid var(--cyan); }
.panel-label { font-family: var(--font-display); letter-spacing: 0.08em; font-size: 0.7rem; color: var(--gold); margin-bottom: 12px; text-transform: uppercase; }
.panel-label.cyan { color: var(--cyan); }

/* ---------- buttons ---------- */
.btn {
  display: inline-block; padding: 12px 22px; background: transparent; border: 1px solid var(--cyan);
  color: var(--cyan); font-family: var(--font-display); letter-spacing: 0.06em; font-weight: 600;
  font-size: 0.85rem; text-decoration: none; cursor: pointer; transition: background 0.15s;
}
.btn:hover { background: rgba(45,212,240,0.08); }
.btn-solid { background: var(--cyan); color: var(--bg); border-color: var(--cyan); }
.btn-solid:hover { opacity: 0.9; }
.btn-gold { border-color: var(--gold); color: var(--gold); }
.btn-gold:hover { background: rgba(240,180,41,0.1); }

/* ---------- cards / grid (plain, no icon badges) ---------- */
.grid { display: grid; gap: 20px; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
@media (max-width: 800px) { .grid-3, .grid-2 { grid-template-columns: 1fr; } }

.card {
  background: var(--panel); border: 1px solid var(--border); padding: 22px;
  text-decoration: none; color: var(--text); display: block; transition: border-color 0.15s, transform 0.15s;
}
.card:hover { border-color: var(--cyan); transform: translateY(-2px); }
.card-tag { font-family: var(--font-mono); font-size: 0.68rem; letter-spacing: 0.04em; color: var(--gold); text-transform: uppercase; margin-bottom: 10px; display: inline-block; }
.card-tag.magenta { color: var(--magenta); }
.card h3 { font-size: 1.15rem; margin-bottom: 8px; }
.card p { color: var(--muted); font-size: 0.9rem; margin: 0; }

/* ---------- inputs ---------- */
input[type=text], input[type=number] { background: var(--panel-alt); border: 1px solid var(--border); color: var(--text); font-family: var(--font-mono); padding: 10px 12px; width: 100%; outline: none; }
input[type=text]:focus, input[type=number]:focus { border-color: var(--cyan); }
input[type=range] { -webkit-appearance: none; width: 100%; height: 3px; background: var(--border); border-radius: 0; }
input[type=range]::-webkit-slider-thumb { -webkit-appearance: none; width: 12px; height: 12px; background: var(--cyan); box-shadow: 0 0 8px var(--cyan); cursor: pointer; }
input[type=range]::-moz-range-thumb { width: 12px; height: 12px; background: var(--cyan); border: none; box-shadow: 0 0 8px var(--cyan); cursor: pointer; }
.field-label { font-family: var(--font-display); letter-spacing: 0.06em; font-size: 0.75rem; color: var(--muted); text-transform: uppercase; display: flex; justify-content: space-between; margin-bottom: 8px; }

/* ---------- stat blocks ---------- */
.stat-num { font-family: var(--font-mono); font-size: 1.6rem; color: var(--cyan); }
.stat-label { font-size: 0.75rem; color: var(--muted); margin-top: 4px; text-transform: uppercase; letter-spacing: 0.04em; }

/* ---------- article prose ---------- */
.prose h2 { font-size: 1.4rem; margin: 44px 0 14px; padding-bottom: 8px; border-bottom: 1px solid var(--border); }
.prose p { margin: 0 0 18px; }
.prose ul { padding-left: 20px; margin: 0 0 18px; }
.prose li { margin-bottom: 10px; }
.disclaimer { font-family: var(--font-mono); font-size: 0.72rem; color: var(--muted); border: 1px solid var(--border); padding: 10px 14px; margin-top: 30px; }

/* ---------- hero ---------- */
.hero { padding: 90px 24px 70px; text-align: center; border-bottom: 1px solid var(--border); }
.hero h1 { font-size: clamp(2.2rem, 5vw, 3.4rem); margin-bottom: 18px; }
.hero p { color: var(--muted); max-width: 560px; margin: 0 auto 30px; font-size: 1.05rem; }
.hero-actions { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }
.section-head { display: flex; justify-content: space-between; align-items: baseline; margin: 70px 0 24px; }
.section-head h2 { font-size: 1.5rem; }
.section-head a { font-family: var(--font-mono); font-size: 0.8rem; color: var(--cyan); text-decoration: none; }

/* ---------- sponsored / partner banner (used in blog articles) ---------- */
.sponsor-banner {
  display: block;
  position: relative;
  border: 1px solid var(--border);
  text-decoration: none;
  margin: 28px 0;
  overflow: hidden;
  transition: border-color 0.15s, transform 0.15s;
}
.sponsor-banner:hover { border-color: var(--green); transform: translateY(-2px); }
.sponsor-tag {
  position: absolute; top: 10px; left: 10px; z-index: 2;
  font-family: var(--font-mono); font-size: 0.62rem; letter-spacing: 0.06em;
  color: var(--bg); background: var(--gold); padding: 3px 8px; text-transform: uppercase;
}

/* ---------- price ticker ---------- */
.ticker-bar { background: var(--panel-alt); border-bottom: 1px solid var(--border); overflow: hidden; white-space: nowrap; position: relative; }
.ticker-track { display: inline-flex; align-items: center; gap: 36px; padding: 8px 24px; animation: ticker-scroll 40s linear infinite; font-family: var(--font-mono); font-size: 0.78rem; }
@media (hover: hover) {
  .ticker-bar:hover .ticker-track { animation-play-state: paused; }
}
.ticker-item { display: inline-flex; align-items: center; gap: 8px; color: var(--muted); }
.ticker-symbol { color: var(--text); font-weight: 600; }
.ticker-up { color: var(--cyan); }
.ticker-down { color: var(--magenta); }
@keyframes ticker-scroll { 0% { transform: translateX(0); } 100% { transform: translateX(-50%); } }

/* ---------- starfield / galaxy background ---------- */
#starfield-canvas { position: fixed; inset: 0; z-index: -2; pointer-events: none; }
.nebula-blob { position: fixed; border-radius: 50%; filter: blur(80px); pointer-events: none; z-index: -1; opacity: 0.35; }
.nebula-1 { width: 480px; height: 480px; background: radial-gradient(circle, var(--cyan), transparent 70%); top: -10%; left: -10%; animation: nebula-drift-1 55s ease-in-out infinite alternate; }
.nebula-2 { width: 420px; height: 420px; background: radial-gradient(circle, var(--magenta), transparent 70%); bottom: -15%; right: -10%; animation: nebula-drift-2 65s ease-in-out infinite alternate; }
.nebula-3 { width: 360px; height: 360px; background: radial-gradient(circle, var(--gold), transparent 70%); top: 40%; right: 20%; animation: nebula-drift-3 70s ease-in-out infinite alternate; }
@keyframes nebula-drift-1 { 0% { transform: translate(0,0); } 100% { transform: translate(120px, 90px); } }
@keyframes nebula-drift-2 { 0% { transform: translate(0,0); } 100% { transform: translate(-100px, -80px); } }
@keyframes nebula-drift-3 { 0% { transform: translate(0,0); } 100% { transform: translate(-60px, 60px); } }