:root{--brand:#FF5722;--bg:#111;--bg2:#1a1a1a;--bg3:#222;--text:#f0f0f0;--muted:#888;--border:#333;--radius:10px}
*{box-sizing:border-box;margin:0;padding:0}
body{font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif;background:var(--bg);color:var(--text);line-height:1.6}
a{color:var(--brand);text-decoration:none}
/* Navbar */
.navbar{display:flex;align-items:center;justify-content:space-between;padding:16px 24px;background:var(--bg2);border-bottom:1px solid var(--border);position:sticky;top:0;z-index:100}
.nav-brand{font-size:1.4rem;font-weight:800;color:var(--brand)}
.nav-links{display:flex;gap:16px;align-items:center}
.nav-links a{color:var(--text);font-size:.95rem}
/* Buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;padding:10px 20px;border-radius:8px;font-size:.95rem;font-weight:600;cursor:pointer;border:2px solid transparent;transition:.15s}
.btn-primary{background:var(--brand);color:#fff;border-color:var(--brand)}
.btn-primary:hover{filter:brightness(1.1)}
.btn-outline{background:transparent;color:var(--brand);border-color:var(--brand)}
.btn-outline:hover{background:var(--brand);color:#fff}
.btn-sm{padding:6px 14px;font-size:.85rem}
.btn-lg{padding:14px 32px;font-size:1.1rem}
.btn-block{width:100%}
.btn-danger{background:#e53e3e;color:#fff;border-color:#e53e3e}
/* Hero */
.hero{text-align:center;padding:100px 20px;background:linear-gradient(135deg,#1a1a1a 0%,#222 100%)}
.hero h1{font-size:clamp(2rem,6vw,4rem);font-weight:800;margin-bottom:20px;line-height:1.1}
.hero p{font-size:1.2rem;color:var(--muted);max-width:600px;margin:0 auto 32px}
/* Features */
.features{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:24px;padding:60px 24px;max-width:1100px;margin:0 auto}
.feature{background:var(--bg2);border:1px solid var(--border);border-radius:var(--radius);padding:28px 24px}
.feat-icon{font-size:2rem;margin-bottom:12px}
.feature h3{font-size:1.1rem;margin-bottom:8px}
.feature p{color:var(--muted);font-size:.9rem}
/* Pricing */
.pricing{padding:60px 24px;text-align:center}
.pricing h2{font-size:2rem;margin-bottom:40px}
.pricing-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:20px;max-width:900px;margin:0 auto}
.price-card{background:var(--bg2);border:1px solid var(--border);border-radius:var(--radius);padding:32px 24px;text-align:left}
.price-card.featured{border-color:var(--brand)}
.price-card h3{font-size:1.1rem;margin-bottom:16px}
.price{font-size:2.5rem;font-weight:800;color:var(--brand)}
.price-note{color:var(--muted);font-size:.85rem;margin-bottom:20px}
.price-card ul{list-style:none;margin-bottom:24px}
.price-card ul li{padding:6px 0;color:var(--muted);font-size:.9rem}
.price-card ul li::before{content:"✓ ";color:var(--brand);font-weight:700}
/* Auth */
.auth-wrap{display:flex;align-items:center;justify-content:center;min-height:calc(100vh - 120px);padding:24px}
.auth-box{background:var(--bg2);border:1px solid var(--border);border-radius:var(--radius);padding:40px;width:100%;max-width:420px}
.auth-box h2{font-size:1.6rem;margin-bottom:24px}
.auth-link{text-align:center;margin-top:20px;color:var(--muted);font-size:.9rem}
label{display:block;margin-bottom:16px;font-size:.9rem;color:var(--muted)}
input,textarea,select{display:block;width:100%;padding:10px 14px;background:var(--bg3);border:1px solid var(--border);border-radius:8px;color:var(--text);font-size:.95rem;margin-top:4px}
input:focus,textarea:focus{outline:none;border-color:var(--brand)}
.alert{padding:12px 16px;border-radius:8px;margin-bottom:16px;font-size:.9rem}
.alert-error{background:rgba(229,62,62,.15);border:1px solid rgba(229,62,62,.4);color:#fc8181}
/* Footer */
.footer{text-align:center;padding:24px;color:var(--muted);font-size:.85rem;border-top:1px solid var(--border);background:var(--bg2)}
/* Error page */
.error-page{text-align:center;padding:120px 24px}
.error-page h1{font-size:6rem;font-weight:800;color:var(--brand)}
.error-page p{color:var(--muted);margin:16px 0 32px}
/* Lang switcher */
.lang-switcher{display:flex;gap:4px;align-items:center}
.lang-btn{font-size:.8rem;padding:4px 8px;border-radius:4px;color:var(--muted);border:1px solid var(--border)}
.lang-btn:hover,.lang-btn.active{background:var(--brand);color:#fff;border-color:var(--brand)}