*,*:before,*:after{margin:0;padding:0;box-sizing:border-box}:root{--bg-primary: #061206;--bg-secondary: #0a1a0a;--bg-card: #0f1f0f;--bg-card-hover: #142814;--text-primary: #e8f5e8;--text-secondary: #7a9a7a;--text-muted: #4a6a4a;--accent-green: #00b894;--accent-green-glow: #55efc4;--accent-purple: #6c5ce7;--accent-purple-glow: #a29bfe;--accent-teal: #00cec9;--accent-coral: #ff6b6b;--accent-gold: #fdcb6e;--leaf: #2d7a2d;--border: #1a2e1a;--border-glow: #2a4a2a;--radius: 12px;--radius-lg: 20px;--radius-xl: 28px;--shadow-glow-green: 0 0 30px rgba(0, 184, 148, .12);--shadow-card: 0 4px 24px rgba(0, 0, 0, .5);--font-body: "Inter", system-ui, -apple-system, sans-serif;--font-display: "Space Grotesk", system-ui, -apple-system, sans-serif;--transition-fast: .15s ease;--transition-base: .3s ease;--transition-slow: .6s cubic-bezier(.16, 1, .3, 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a.active{color:var(--accent-green-glow)}.nav-logo{width:32px;height:32px;background:linear-gradient(135deg,var(--accent-green),var(--accent-teal));border-radius:8px;display:flex;align-items:center;justify-content:center;color:#000;font-size:1rem}.hero{position:relative;z-index:1;padding:8rem 2rem 4rem;text-align:center;max-width:800px;margin:0 auto}.hero-tag{display:inline-block;padding:.4rem 1rem;background:#00b8941f;border:1px solid rgba(0,184,148,.25);border-radius:100px;font-size:.8rem;font-weight:500;color:var(--accent-green-glow);margin-bottom:1.5rem}.hero h1{font-family:var(--font-display);font-size:clamp(2.5rem,5vw,3.5rem);font-weight:700;line-height:1.15;margin-bottom:1rem}.hero h1 .gradient{background:linear-gradient(135deg,var(--accent-green-glow),var(--accent-teal),var(--accent-green-glow));background-size:200% 200%;-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;animation:gradShift 3s ease infinite}@keyframes gradShift{0%,to{background-position:0% 50%}50%{background-position:100% 50%}}.hero p{font-size:1.1rem;color:var(--text-secondary);max-width:500px;margin:0 auto 2rem}.hero-stats{display:flex;justify-content:center;gap:3rem;margin-top:2rem;flex-wrap:wrap}.hero-stat{text-align:center}.hero-stat .num{font-family:var(--font-display);font-size:2.2rem;font-weight:700;color:var(--accent-green-glow)}.hero-stat .label{font-size:.8rem;color:var(--text-muted);text-transform:uppercase;letter-spacing:.05em}.btn{display:inline-flex;align-items:center;gap:.5rem;padding:.75rem 1.75rem;border-radius:100px;font-size:.9rem;font-weight:600;transition:all var(--transition-base)}.btn-primary{background:linear-gradient(135deg,var(--accent-green),var(--accent-teal));color:#000;box-shadow:0 0 30px #00b89440}.btn-primary:hover{transform:translateY(-2px);box-shadow:0 0 45px #00b89466}.btn-secondary{background:#00b8941a;color:var(--accent-green-glow);border:1px solid 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svg{color:var(--accent-green-glow);margin-bottom:.5rem}.impact-card .metric{font-family:var(--font-display);font-size:2rem;font-weight:700;color:var(--accent-green-glow)}.impact-card .label{font-size:.85rem;color:var(--text-muted);margin-top:.25rem}.milestone-overlay{position:fixed;top:0;right:0;bottom:0;left:0;z-index:300;display:flex;align-items:center;justify-content:center;padding:2rem;background:#061206d9;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px)}.milestone-card{background:var(--bg-secondary);border:1px solid var(--accent-green);border-radius:var(--radius-xl);padding:3rem 2rem;text-align:center;max-width:420px;box-shadow:0 0 60px #00b89433}.milestone h1{font-family:var(--font-display);font-size:2.5rem;font-weight:700;margin-bottom:.5rem}.milestone p{color:var(--text-secondary);margin-bottom:1.5rem}.guide-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:1rem}.guide-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:1.25rem;display:flex;align-items:center;gap:.75rem;transition:all var(--transition-base)}.guide-card:hover{border-color:var(--accent-green);transform:translateY(-2px)}.guide-card svg{flex-shrink:0}.savecard-canvas{background:linear-gradient(135deg,var(--bg-secondary),var(--bg-card));border:1px solid var(--border-glow);border-radius:var(--radius-lg);padding:2rem;text-align:center;max-width:400px;margin:2rem auto}.savecard-header{font-family:var(--font-display);font-size:1.5rem;font-weight:700;color:var(--accent-green-glow);margin-bottom:.25rem}.savecard-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:1rem;margin:1.5rem 0}.savecard-stat .num{font-family:var(--font-display);font-size:1.8rem;font-weight:700;color:var(--accent-green-glow)}.savecard-stat .lbl{font-size:.7rem;color:var(--text-muted);text-transform:uppercase;letter-spacing:.05em}.footer{position:relative;z-index:1;border-top:1px solid var(--border);padding:3rem 2rem 2rem;background:var(--bg-secondary);margin-top:4rem;text-align:center}.footer-grid{max-width:1100px;margin:0 auto;display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:2rem;text-align:left;margin-bottom:2rem}.footer-col h4{font-family:var(--font-display);font-size:.9rem;font-weight:600;margin-bottom:.75rem;color:var(--text-primary)}.footer-col a,.footer-col p{display:block;font-size:.85rem;color:var(--text-muted);margin-bottom:.4rem}.footer-col a:hover{color:var(--accent-green-glow)}.footer-bottom{border-top:1px solid var(--border);padding-top:1.5rem;font-size:.8rem;color:var(--text-muted)}.tabs{display:flex;gap:.25rem;background:var(--bg-card);border-radius:100px;padding:.3rem;overflow-x:auto}.tab{padding:.5rem 1.25rem;border-radius:100px;font-size:.82rem;font-weight:500;color:var(--text-secondary);white-space:nowrap;background:transparent;transition:all var(--transition-fast)}.tab:hover{color:var(--text-primary)}.tab.active{background:#00b89426;color:var(--accent-green-glow)}@media(max-width:768px){.nav{padding:0 1rem}.nav-links{display:none}.section{padding:2rem 1rem}.hero{padding:6rem 1rem 3rem}.hero h1{font-size:2rem}.logger-grid,.challenge-grid{grid-template-columns:1fr}.impact-dashboard{grid-template-columns:1fr 1fr}}