* { box-sizing: border-box; }
body {
    margin: 0;
    font-family: -apple-system, Segoe UI, Roboto, sans-serif;
    background: #0f172a;
    color: #e2e8f0;
}
.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
    background: #1e293b;
}
.navbar .brand {
    font-weight: 700;
    font-size: 1.25rem;
    color: #38bdf8;
    text-decoration: none;
}
.navbar nav a {
    color: #e2e8f0;
    text-decoration: none;
    margin-left: 1.5rem;
}
main {
    max-width: 900px;
    margin: 0 auto;
    padding: 3rem 1.5rem;
}
.hero h1 { font-size: 2.5rem; margin-bottom: 0.25rem; }
.hero .tagline { font-size: 1.25rem; color: #94a3b8; }
.hero .meta { margin: 1rem 0; color: #38bdf8; }
.hero .description { line-height: 1.6; }
.cta {
    display: inline-block;
    margin-top: 1.5rem;
    padding: 0.75rem 1.5rem;
    background: #38bdf8;
    color: #0f172a;
    font-weight: 600;
    text-decoration: none;
    border-radius: 6px;
}
.api-info { margin-top: 3rem; }
.api-info code {
    background: #1e293b;
    padding: 0.2rem 0.4rem;
    border-radius: 4px;
}
.login-box, .dashboard {
    max-width: 400px;
    margin: 0 auto;
    background: #1e293b;
    padding: 2rem;
    border-radius: 8px;
}
.login-box form { display: flex; flex-direction: column; }
.login-box label { margin-top: 1rem; margin-bottom: 0.25rem; }
.login-box input {
    padding: 0.5rem;
    border-radius: 4px;
    border: 1px solid #334155;
    background: #0f172a;
    color: #e2e8f0;
}
.login-box button {
    margin-top: 1.5rem;
    padding: 0.6rem;
    background: #38bdf8;
    border: none;
    border-radius: 6px;
    font-weight: 600;
    cursor: pointer;
}
.login-box .hint { margin-top: 1rem; font-size: 0.85rem; color: #94a3b8; }
.error { color: #f87171; }
footer {
    text-align: center;
    padding: 1.5rem;
    color: #64748b;
    font-size: 0.85rem;
}