* { box-sizing: border-box; margin: 0; padding: 0; }
body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: #1a1a2e;
    color: #eee;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 20px;
}
.logo {
    font-size: 28px;
    font-weight: 700;
    color: #00d9ff;
    text-decoration: none;
    margin-bottom: 40px;
}
.auth-card {
    background: #16213e;
    padding: 40px;
    border-radius: 12px;
    width: 100%;
    max-width: 400px;
}
.auth-card h1 {
    font-size: 24px;
    margin-bottom: 8px;
    text-align: center;
}
.auth-card .subtitle {
    color: #888;
    text-align: center;
    margin-bottom: 30px;
    font-size: 14px;
}
.form-group {
    margin-bottom: 20px;
}
.form-group label {
    display: block;
    margin-bottom: 8px;
    font-size: 14px;
    color: #aaa;
}
.form-group input {
    width: 100%;
    padding: 12px 15px;
    border: 2px solid #0f0f23;
    border-radius: 6px;
    background: #0f0f23;
    color: #fff;
    font-size: 14px;
    transition: border-color 0.2s;
}
.form-group input:focus {
    outline: none;
    border-color: #00d9ff;
}
.btn {
    width: 100%;
    padding: 14px;
    border: none;
    border-radius: 6px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
}
.btn-primary { background: #00d9ff; color: #000; }
.btn-primary:hover { background: #00b8d9; }
.auth-footer {
    text-align: center;
    margin-top: 25px;
    padding-top: 25px;
    border-top: 1px solid #0f0f23;
    font-size: 14px;
    color: #888;
}
.auth-footer a {
    color: #00d9ff;
    text-decoration: none;
}
.auth-footer a:hover {
    text-decoration: underline;
}
.flash-messages {
    width: 100%;
    max-width: 400px;
    margin-bottom: 20px;
}
.flash {
    padding: 15px;
    border-radius: 8px;
    margin-bottom: 10px;
    font-size: 14px;
}
.flash.success { background: rgba(0, 255, 136, 0.2); color: #00ff88; }
.flash.warning { background: rgba(255, 170, 0, 0.2); color: #ffaa00; }
.flash.error { background: rgba(255, 69, 96, 0.2); color: #e94560; }
.back-link {
    margin-top: 30px;
    color: #666;
    text-decoration: none;
    font-size: 14px;
}
.back-link:hover { color: #888; }