/* ============================================================
   NEXUS PROTOCOL — STYLE
   Deep navy + electric blue + cyan, Space Grotesk futuristic
   ============================================================ */
:root {
  --primary:      #4f46e5;
  --primary-dark: #4338ca;
  --primary-glow: rgba(79,70,229,.35);
  --accent:       #06b6d4;
  --accent-glow:  rgba(6,182,212,.25);
  --bg:           #060818;
  --bg-surface:   #0d1027;
  --bg-card:      #111630;
  --border:       #1e2d5a;
  --border-light: #2a3a6e;
  --text:         #f1f5ff;
  --text-muted:   #8b9cc8;
  --text-light:   #5c6e99;
  --green:        #10b981;
  --purple:       #a855f7;
  --radius:       14px;
  --radius-sm:    8px;
  --font:         'Space Grotesk', system-ui, sans-serif;
  --font-body:    'Inter', system-ui, sans-serif;
  --transition:   0.25s ease;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: var(--font-body); background: var(--bg); color: var(--text); -webkit-font-smoothing: antialiased; }
img { display: block; max-width: 100%; }
a { text-decoration: none; color: inherit; }
button { cursor: pointer; border: none; background: none; font: inherit; }

/* NAVBAR */
.navbar { position: sticky; top: 0; z-index: 100; background: rgba(6,8,24,.92); backdrop-filter: blur(20px); border-bottom: 1px solid var(--border); transition: border-color var(--transition); }
.navbar.scrolled { border-color: var(--border-light); }
.nav-inner { max-width: 1280px; margin: 0 auto; padding: 0 24px; display: flex; align-items: center; gap: 20px; height: 66px; }
.nav-logo { display: flex; align-items: center; gap: 10px; flex-shrink: 0; text-decoration: none; }
.logo-icon { width: 32px; height: 32px; background: linear-gradient(135deg, var(--primary), var(--accent)); border-radius: 8px; flex-shrink: 0; clip-path: polygon(50% 0%, 100% 25%, 100% 75%, 50% 100%, 0% 75%, 0% 25%); }
.nav-logo .nl { font-family: var(--font); font-size: .95rem; font-weight: 800; letter-spacing: .1em; color: #fff; }
.nav-logo .ns { display: block; font-size: .6rem; font-weight: 700; letter-spacing: .14em; color: var(--accent); }
.nav-links { display: flex; gap: 4px; flex: 1; }
.nav-links a { padding: 7px 13px; border-radius: 8px; font-size: .85rem; font-weight: 600; color: var(--text-muted); font-family: var(--font); transition: all var(--transition); }
.nav-links a:hover { color: #fff; background: rgba(255,255,255,.05); }
.nav-right { margin-left: auto; }
.nav-toggle { display: none; padding: 8px; border-radius: 8px; color: var(--text); }
.nav-mobile { display: none; flex-direction: column; gap: 2px; padding: 12px 20px 20px; border-top: 1px solid var(--border); background: var(--bg-surface); }
.nav-mobile a { padding: 10px 14px; border-radius: 8px; font-weight: 600; font-family: var(--font); color: var(--text-muted); }
.nav-mobile a:hover { color: #fff; background: rgba(255,255,255,.06); }
.nav-mobile.open { display: flex; }

/* BUTTONS */
.btn-primary { display: inline-flex; align-items: center; gap: 7px; background: var(--primary); color: #fff; padding: 10px 22px; border-radius: 8px; font-size: .88rem; font-weight: 700; font-family: var(--font); letter-spacing: .02em; transition: all var(--transition); white-space: nowrap; }
.btn-primary:hover { background: var(--primary-dark); box-shadow: 0 0 24px var(--primary-glow); }
.btn-primary.btn-lg { padding: 14px 28px; font-size: .95rem; }
.btn-ghost { display: inline-flex; align-items: center; background: rgba(255,255,255,.06); color: var(--text-muted); padding: 10px 22px; border-radius: 8px; border: 1.5px solid var(--border-light); font-size: .88rem; font-weight: 700; font-family: var(--font); transition: all var(--transition); }
.btn-ghost:hover { color: #fff; border-color: rgba(255,255,255,.3); background: rgba(255,255,255,.08); }

/* HERO */
.hero { position: relative; min-height: 92vh; display: flex; align-items: center; overflow: hidden; }
.hero-grid-bg { position: absolute; inset: 0; background-image: linear-gradient(rgba(79,70,229,.08) 1px, transparent 1px), linear-gradient(90deg, rgba(79,70,229,.08) 1px, transparent 1px); background-size: 60px 60px; mask-image: radial-gradient(ellipse at center, black 40%, transparent 80%); }
.hero-orb { position: absolute; border-radius: 50%; filter: blur(100px); pointer-events: none; }
.hero-orb-1 { width: 500px; height: 500px; background: radial-gradient(circle, rgba(79,70,229,.25) 0%, transparent 70%); top: -100px; right: -100px; }
.hero-orb-2 { width: 400px; height: 400px; background: radial-gradient(circle, rgba(6,182,212,.18) 0%, transparent 70%); bottom: -80px; left: -80px; }
.hero-content { position: relative; z-index: 1; max-width: 760px; padding: 80px 0; }
.hero-eyebrow { display: inline-flex; align-items: center; gap: 10px; background: rgba(79,70,229,.12); border: 1px solid rgba(79,70,229,.3); color: var(--accent); padding: 7px 16px; border-radius: 50px; font-size: .8rem; font-weight: 700; letter-spacing: .06em; font-family: var(--font); margin-bottom: 28px; }
.eyebrow-dot { width: 8px; height: 8px; background: var(--green); border-radius: 50%; box-shadow: 0 0 6px var(--green); animation: pulse 2s infinite; }
@keyframes pulse { 0%,100%{opacity:1;transform:scale(1)} 50%{opacity:.6;transform:scale(.9)} }
.hero-content h1 { font-family: var(--font); font-size: clamp(3rem, 7vw, 6rem); font-weight: 800; line-height: 1.0; letter-spacing: -.04em; color: #fff; margin-bottom: 22px; }
.hero-gradient { background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.hero-content p { font-size: 1.1rem; color: var(--text-muted); max-width: 580px; line-height: 1.7; margin-bottom: 36px; }
.hero-ctas { display: flex; gap: 14px; margin-bottom: 60px; flex-wrap: wrap; }
.hero-stats { display: flex; gap: 0; }
.hero-stat { padding: 20px 28px; border-right: 1px solid var(--border); }
.hero-stat:first-child { padding-left: 0; }
.hero-stat strong { display: block; font-family: var(--font); font-size: 1.6rem; font-weight: 800; color: #fff; letter-spacing: -.03em; line-height: 1; }
.hero-stat span { font-size: .72rem; font-weight: 700; text-transform: uppercase; letter-spacing: .08em; color: var(--text-light); margin-top: 5px; display: block; }

/* LAYOUT */
.container { max-width: 1280px; margin: 0 auto; padding: 0 24px; }
.section { padding: 100px 0; }
.section-dark { background: var(--bg-surface); }
.section-head { text-align: center; max-width: 640px; margin: 0 auto 56px; }
.eyebrow { display: inline-block; font-family: var(--font); font-size: .72rem; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; color: var(--accent); background: rgba(6,182,212,.1); border: 1px solid rgba(6,182,212,.25); padding: 5px 14px; border-radius: 50px; margin-bottom: 16px; }
.section-head h2 { font-family: var(--font); font-size: clamp(1.8rem, 4vw, 2.8rem); font-weight: 800; letter-spacing: -.04em; color: #fff; margin-bottom: 14px; }
.section-head p { font-size: .95rem; color: var(--text-muted); line-height: 1.7; }

/* FEATURES */
.features-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.feature-card { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius); padding: 28px; transition: all var(--transition); position: relative; overflow: hidden; }
.feature-card::before { content: ''; position: absolute; inset: 0; background: linear-gradient(135deg, rgba(79,70,229,.06) 0%, transparent 60%); pointer-events: none; }
.feature-card:hover { border-color: var(--primary); box-shadow: 0 0 40px rgba(79,70,229,.12); transform: translateY(-2px); }
.feat-icon { width: 44px; height: 44px; background: rgba(79,70,229,.15); border: 1px solid rgba(79,70,229,.3); border-radius: 10px; display: flex; align-items: center; justify-content: center; color: var(--primary); margin-bottom: 14px; }
.feat-badge { display: inline-block; font-size: .7rem; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; color: var(--accent); background: rgba(6,182,212,.1); border: 1px solid rgba(6,182,212,.25); padding: 3px 10px; border-radius: 50px; margin-bottom: 12px; }
.feature-card h3 { font-family: var(--font); font-size: 1.05rem; font-weight: 700; color: #fff; margin-bottom: 10px; }
.feature-card p { font-size: .87rem; color: var(--text-muted); line-height: 1.7; }

/* ECOSYSTEM */
.ecosystem-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.eco-card { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius); padding: 28px; text-align: center; transition: all var(--transition); }
.eco-card:hover { border-color: var(--border-light); background: rgba(255,255,255,.03); }
.eco-icon { width: 48px; height: 48px; background: rgba(79,70,229,.15); border-radius: 12px; display: flex; align-items: center; justify-content: center; color: var(--primary); margin: 0 auto 14px; }
.eco-count { font-family: var(--font); font-size: 1.8rem; font-weight: 800; color: #fff; letter-spacing: -.04em; margin-bottom: 6px; }
.eco-label { font-size: .82rem; color: var(--text-muted); font-weight: 600; }

/* TOKENOMICS */
.tokenomics-wrap { display: grid; grid-template-columns: 1fr 1fr; gap: 80px; align-items: center; }
.token-chart { display: flex; justify-content: center; }
.token-donut { position: relative; }
.token-legend { display: flex; flex-direction: column; gap: 14px; }
.token-item { display: flex; align-items: center; gap: 12px; padding: 14px; background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-sm); }
.token-dot { width: 12px; height: 12px; border-radius: 3px; flex-shrink: 0; }
.token-item span { font-size: .9rem; color: var(--text-muted); flex: 1; }
.token-item strong { font-family: var(--font); font-size: 1rem; font-weight: 700; color: #fff; }

/* ROADMAP */
.roadmap-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.roadmap-card { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius); padding: 24px; transition: all var(--transition); }
.roadmap-card.done { border-color: rgba(16,185,129,.3); }
.roadmap-card.done .roadmap-phase { color: var(--green); background: rgba(16,185,129,.1); border-color: rgba(16,185,129,.25); }
.roadmap-card.active { border-color: rgba(79,70,229,.5); box-shadow: 0 0 32px rgba(79,70,229,.1); }
.roadmap-card.active .roadmap-phase { color: var(--primary); background: rgba(79,70,229,.15); border-color: rgba(79,70,229,.35); }
.roadmap-header { display: flex; align-items: center; justify-content: space-between; gap: 8px; margin-bottom: 12px; }
.roadmap-phase { font-size: .7rem; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; color: var(--text-light); background: rgba(255,255,255,.05); border: 1px solid var(--border); padding: 3px 10px; border-radius: 50px; }
.roadmap-date { font-size: .78rem; font-weight: 600; color: var(--text-light); font-family: var(--font); }
.roadmap-card h3 { font-family: var(--font); font-size: .95rem; font-weight: 700; color: #fff; margin-bottom: 14px; }
.roadmap-card ul { list-style: none; display: flex; flex-direction: column; gap: 8px; }
.roadmap-card li { display: flex; align-items: center; gap: 8px; font-size: .82rem; color: var(--text-muted); }
.roadmap-card.done li svg { color: var(--green); }
.roadmap-card.active li svg { color: var(--primary); }
.roadmap-card li svg { color: var(--text-light); flex-shrink: 0; }

/* COMMUNITY */
.community-stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 2px; background: var(--border); border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; margin-bottom: 40px; }
.com-stat { background: var(--bg); padding: 28px; text-align: center; }
.com-stat strong { display: block; font-family: var(--font); font-size: 2rem; font-weight: 800; color: #fff; letter-spacing: -.04em; margin-bottom: 6px; }
.com-stat span { font-size: .78rem; font-weight: 700; text-transform: uppercase; letter-spacing: .08em; color: var(--text-muted); }
.community-links { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }
.com-link { display: flex; align-items: center; gap: 10px; background: var(--bg-card); border: 1px solid var(--border); border-radius: 10px; padding: 14px 22px; font-family: var(--font); font-size: .9rem; font-weight: 700; color: var(--text-muted); transition: all var(--transition); }
.com-link:hover { border-color: var(--primary); color: #fff; background: rgba(79,70,229,.1); }

/* FAQ */
.faq-wrap { max-width: 720px; margin: 0 auto; }
.faq-list { display: flex; flex-direction: column; gap: 2px; }
.faq-item { border: 1px solid var(--border); border-radius: var(--radius-sm); overflow: hidden; background: var(--bg-card); }
.faq-q { display: flex; align-items: center; justify-content: space-between; gap: 16px; width: 100%; padding: 20px 22px; font-size: .92rem; font-weight: 700; font-family: var(--font); color: var(--text); text-align: left; transition: color var(--transition); }
.faq-q:hover { color: var(--accent); }
.faq-icon { transition: transform 0.3s ease; flex-shrink: 0; color: var(--text-muted); }
.faq-item.open .faq-icon { transform: rotate(180deg); }
.faq-item.open .faq-q { color: var(--accent); }
.faq-a { display: none; padding: 0 22px 20px; }
.faq-item.open .faq-a { display: block; }
.faq-a p { font-size: .9rem; color: var(--text-muted); line-height: 1.75; }

/* FOOTER */
.footer { background: var(--bg-surface); border-top: 1px solid var(--border); padding: 80px 0 32px; }
.footer-top { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 48px; margin-bottom: 48px; }
.footer-brand p { font-size: .86rem; color: var(--text-muted); line-height: 1.7; max-width: 260px; margin-top: 12px; }
.footer-social { display: flex; gap: 10px; margin-top: 20px; }
.footer-social a { width: 36px; height: 36px; border-radius: 8px; border: 1px solid var(--border); display: flex; align-items: center; justify-content: center; color: var(--text-muted); transition: all var(--transition); }
.footer-social a:hover { background: rgba(79,70,229,.15); border-color: var(--primary); color: #fff; }
.footer-col h4 { font-family: var(--font); font-size: .72rem; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; color: rgba(255,255,255,.7); margin-bottom: 18px; }
.footer-col ul { list-style: none; display: flex; flex-direction: column; gap: 8px; }
.footer-col ul li a { font-size: .86rem; color: var(--text-light); transition: color var(--transition); }
.footer-col ul li a:hover { color: var(--accent); }
.footer-bottom { border-top: 1px solid var(--border); padding-top: 24px; }
.footer-bottom p { font-size: .78rem; color: var(--text-light); }

/* BACK TO TOP */
.back-top { position: fixed; bottom: 28px; right: 28px; width: 44px; height: 44px; background: var(--primary); color: #fff; border-radius: 10px; display: flex; align-items: center; justify-content: center; box-shadow: 0 0 20px var(--primary-glow); opacity: 0; transform: translateY(10px); transition: all var(--transition); z-index: 90; pointer-events: none; }
.back-top.visible { opacity: 1; transform: translateY(0); pointer-events: auto; }
.back-top:hover { background: var(--primary-dark); }

/* REVEAL */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity 0.55s ease, transform 0.55s ease; }
.reveal.in-view { opacity: 1; transform: translateY(0); }

/* RESPONSIVE */
@media (max-width: 1100px) {
  .features-grid, .ecosystem-grid { grid-template-columns: repeat(2, 1fr); }
  .roadmap-grid { grid-template-columns: repeat(2, 1fr); }
  .tokenomics-wrap { grid-template-columns: 1fr; }
  .community-stats { grid-template-columns: repeat(2, 1fr); }
  .footer-top { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
  .nav-links, .nav-right { display: none; }
  .nav-toggle { display: flex; }
  .section { padding: 64px 0; }
  .features-grid, .ecosystem-grid { grid-template-columns: 1fr; }
  .roadmap-grid { grid-template-columns: 1fr; }
  .hero-stats { flex-wrap: wrap; }
  .footer-top { grid-template-columns: 1fr; }
}