*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
  --primary:#2563EB;--primary-hover:#1D4ED8;--accent:#10B981;--bg:#0B1120;--surface:#111827;
  --surface-hover:#1F2937;--text:#F9FAFB;--text-muted:#9CA3AF;--border:#1F2937;--error:#EF4444;
  --success:#10B981;--radius:8px
}
body{font-family:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif;background:var(--bg);color:var(--text);min-height:100vh;-webkit-font-smoothing:antialiased}
.app{display:flex;min-height:100vh;flex-direction:column}
.nav{display:flex;align-items:center;justify-content:space-between;padding:1rem 2rem;border-bottom:1px solid var(--border)}
.nav-left{display:flex;align-items:center;gap:.75rem}
.nav-left img{width:28px;height:28px}
.nav-brand{font-size:1rem;font-weight:700;letter-spacing:-.01em}
.nav-tag{font-size:.625rem;font-weight:600;color:var(--accent);background:rgba(16,185,129,.12);border:1px solid rgba(16,185,129,.2);padding:.125rem .5rem;border-radius:999px;text-transform:uppercase;letter-spacing:.05em}
.nav-links{display:flex;gap:1.5rem}
.nav-links a{color:var(--text-muted);text-decoration:none;font-size:.875rem;font-weight:500;transition:color .15s}
.nav-links a:hover{color:var(--text)}
.nav-right{display:flex;align-items:center;gap:1rem}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;padding:.625rem 1.25rem;background:var(--primary);color:#fff;font-size:.875rem;font-weight:600;border:none;border-radius:var(--radius);cursor:pointer;transition:background .15s,transform .1s;text-decoration:none}
.btn:hover{background:var(--primary-hover)}
.btn:active{transform:scale(.98)}
.btn-outline{background:transparent;border:1.5px solid var(--border);color:var(--text)}
.btn-outline:hover{background:var(--surface-hover);border-color:var(--text-muted)}
.btn-sm{padding:.5rem 1rem;font-size:.8125rem}
.hero{display:flex;align-items:center;justify-content:center;flex-direction:column;text-align:center;padding:5rem 2rem 3rem;gap:1.5rem}
.hero-badge{display:inline-flex;align-items:center;gap:.5rem;background:var(--surface);border:1px solid var(--border);border-radius:999px;padding:.375rem 1rem;font-size:.75rem;font-weight:600;color:var(--accent);text-transform:uppercase;letter-spacing:.05em}
.hero h1{font-size:3rem;font-weight:800;letter-spacing:-.03em;line-height:1.15;max-width:720px}
.hero h1 span{background:linear-gradient(135deg,var(--primary),var(--accent));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.hero p{font-size:1.125rem;color:var(--text-muted);max-width:540px;line-height:1.6}
.hero-actions{display:flex;gap:1rem;margin-top:.5rem}
.features{display:grid;grid-template-columns:repeat(3,1fr);gap:1.5rem;padding:3rem 2rem;max-width:1100px;margin:0 auto}
.feature-card{background:var(--surface);border:1px solid var(--border);border-radius:12px;padding:2rem;transition:border-color .2s,transform .2s}
.feature-card:hover{border-color:var(--primary);transform:translateY(-2px)}
.feature-icon{width:48px;height:48px;background:rgba(37,99,235,.15);border-radius:12px;display:flex;align-items:center;justify-content:center;margin-bottom:1.25rem;font-size:1.5rem}
.feature-card h3{font-size:1.125rem;font-weight:700;margin-bottom:.5rem}
.feature-card p{font-size:.875rem;color:var(--text-muted);line-height:1.6}
.stats{display:flex;justify-content:center;gap:4rem;padding:3rem 2rem;border-top:1px solid var(--border);border-bottom:1px solid var(--border)}
.stat{text-align:center}
.stat-value{font-size:2rem;font-weight:800;background:linear-gradient(135deg,var(--primary),var(--accent));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.stat-label{font-size:.8125rem;color:var(--text-muted);margin-top:.25rem}
.footer{padding:2rem;text-align:center;color:var(--text-muted);font-size:.8125rem;margin-top:auto}
.card{background:var(--surface);border-radius:12px;border:1px solid var(--border);padding:2.5rem;width:100%;max-width:420px}
.card-center{display:flex;align-items:center;justify-content:center;flex:1;padding:2rem}
.heading{font-size:1.5rem;font-weight:700;letter-spacing:-.02em;margin-bottom:.375rem}
.subheading{color:var(--text-muted);font-size:.9375rem;margin-bottom:1.75rem;line-height:1.5}
label{display:block;font-size:.875rem;font-weight:500;color:var(--text);margin-bottom:.375rem}
input[type=email],input[type=password]{width:100%;padding:.625rem .875rem;border:1.5px solid var(--border);border-radius:var(--radius);font-size:1rem;line-height:1.5;color:var(--text);background:var(--bg);outline:none;transition:border-color .15s,box-shadow .15s}
input[type=email]:focus,input[type=password]:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(37,99,235,.2)}
input::placeholder{color:#6b7280}
.field{margin-bottom:1.25rem}
.field-row{display:flex;justify-content:space-between;align-items:center;margin-bottom:.375rem}
.field-row label{margin-bottom:0}
.forgot{font-size:.8125rem;color:var(--primary);text-decoration:none;font-weight:500}
.forgot:hover{text-decoration:underline}
.btn-full{width:100%;margin-top:.25rem}
.spinner{width:18px;height:18px;border:2px solid rgba(255,255,255,.35);border-top-color:#fff;border-radius:50%;animation:spin .65s linear infinite;flex-shrink:0}
@keyframes spin{to{transform:rotate(360deg)}}
.error-banner{display:flex;align-items:flex-start;gap:.625rem;background:rgba(239,68,68,.1);border:1px solid rgba(239,68,68,.25);border-radius:var(--radius);padding:.75rem 1rem;color:var(--error);font-size:.875rem;line-height:1.5;margin-bottom:1.25rem}
.error-banner svg{flex-shrink:0;margin-top:1px}
.divider{position:relative;text-align:center;color:var(--text-muted);font-size:.8125rem;margin:1.5rem 0}
.divider::before,.divider::after{content:'';position:absolute;top:50%;width:42%;height:1px;background:var(--border)}
.divider::before{left:0}.divider::after{right:0}
.signup-link{text-align:center;font-size:.875rem;color:var(--text-muted)}
.signup-link a{color:var(--primary);text-decoration:none;font-weight:500}
.signup-link a:hover{text-decoration:underline}
@media(max-width:768px){.features{grid-template-columns:1fr}.stats{flex-wrap:wrap;gap:2rem}.hero h1{font-size:2rem}.nav-links{display:none}}