:root{--primary:#38bdf8;--secondary:#818cf8;--text:#e2e8f0;--muted:#94a3b8;background:#0b1220;color:var(--text);font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,Apple Color Emoji,Segoe UI Emoji}*{box-sizing:border-box}body,html{height:100%;margin:0}footer,header,main{width:100%}header{justify-content:space-between;padding:clamp(1.5rem,3vw,3rem) clamp(1.5rem,6vw,6rem);gap:1.5rem}.brand,.header-links,header{display:flex;align-items:center}.brand{gap:.75rem}.brand-icon{width:40px;height:40px;border-radius:12px;background:linear-gradient(135deg,var(--primary),var(--secondary));display:grid;place-items:center;font-weight:700;letter-spacing:.5px}.brand-title{font-size:1.25rem;font-weight:600}.header-link{color:var(--muted);text-decoration:none;font-weight:500;transition:color .2s ease;margin-left:1.5rem;background:transparent;border:none;cursor:pointer;font:inherit;padding:0}.header-link:focus-visible,.header-link:hover{color:var(--text)}main{flex:1 1;display:grid;place-items:center;padding:clamp(1.5rem,5vw,7rem) clamp(1.5rem,6vw,7rem)}.hero{max-width:1100px;width:100%;display:grid;grid-gap:clamp(2rem,3vw,3.5rem);gap:clamp(2rem,3vw,3.5rem);grid-template-columns:repeat(auto-fit,minmax(300px,1fr));align-items:center}.hero h1{font-size:clamp(2.4rem,4vw,3.75rem);margin:0;line-height:1.1}.hero p{font-size:clamp(1.05rem,1.5vw,1.2rem);color:var(--muted);margin:1.2rem 0 2rem;line-height:1.6}.cta-group{display:flex;flex-wrap:wrap;gap:1rem}.btn{display:inline-flex;align-items:center;justify-content:center;padding:.9rem 1.6rem;border-radius:999px;font-weight:600;text-decoration:none;transition:transform .2s ease,box-shadow .2s ease;cursor:pointer;border:none}.btn-primary{background:linear-gradient(135deg,rgba(56,189,248,.95),rgba(129,140,248,.95));color:#0f172a;box-shadow:0 20px 40px rgba(56,189,248,.25)}.btn-primary:hover{transform:translateY(-3px);box-shadow:0 25px 45px rgba(56,189,248,.35)}.btn-primary:disabled{opacity:.6;cursor:not-allowed}.btn-secondary{border:1px solid rgba(148,163,184,.35);color:var(--text)}.btn-secondary:hover{border-color:rgba(148,163,184,.6)}.feature-card{position:relative;background:rgba(15,23,42,.5);border:1px solid rgba(148,163,184,.2);border-radius:18px;padding:clamp(1.8rem,3vw,2.4rem);box-shadow:0 25px 40px rgba(15,23,42,.55);-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);overflow:hidden}.feature-card:after{content:"";position:absolute;top:-20%;right:-10%;width:220px;height:220px;border-radius:50%;background:rgba(56,189,248,.08);filter:blur(10px)}.feature-grid{display:grid;grid-gap:1.4rem;gap:1.4rem}.feature{display:flex;gap:1rem;align-items:flex-start}.feature-icon{width:42px;height:42px;border-radius:14px;background:rgba(56,189,248,.15);display:grid;place-items:center;font-size:1.1rem;color:var(--primary);flex-shrink:0}.feature-title{margin:0 0 .25rem;font-weight:600}footer{padding:1.5rem clamp(1.5rem,6vw,6rem);display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:.75rem;font-size:.95rem}footer,footer a{color:var(--muted)}footer a{text-decoration:none}footer a:hover{color:var(--text)}.login-container{display:flex;justify-content:center;align-items:center;min-height:100vh;padding:1.5rem}.login-card{background:rgba(15,23,42,.92);border:1px solid rgba(148,163,184,.25);padding:clamp(2rem,3vw + 1rem,3.25rem);border-radius:16px;width:min(420px,92vw);text-align:center;box-shadow:0 22px 45px rgba(15,23,42,.55);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px)}.login-card h1{font-size:clamp(1.6rem,2vw + 1rem,2rem);margin:0 0 .75rem}.login-lead{color:#cbd5f5;margin-bottom:2.25rem;line-height:1.5}.login-actions{display:flex;justify-content:center;margin:1.5rem 0}.login-actions .btn{width:100%;max-width:260px}.login-status{margin-top:1.5rem;color:#94a3b8;font-size:.95rem}.login-status.error{color:#fca5a5}.login-success-banner{margin-top:1.5rem;padding:.75rem 1rem;background:rgba(34,197,94,.18);border:1px solid rgba(34,197,94,.4);color:#bbf7d0;border-radius:8px;font-size:.95rem}.upload-widget{display:flex;flex-direction:column;gap:1rem}.upload-widget input[type=file]{padding:.75rem;background:rgba(15,23,42,.5);border:1px solid rgba(148,163,184,.2);border-radius:8px;color:var(--text)}.upload-widget a{color:var(--primary);text-decoration:none}.upload-widget a:hover{text-decoration:underline}@media (max-width:640px){header{flex-direction:column}.header-links{width:100%;display:flex;justify-content:center;gap:1.5rem}.header-link{margin-left:0}footer{flex-direction:column;text-align:center}}