* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', sans-serif;
}

body {
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    background: linear-gradient(135deg, #1e293b, #0f172a);
    animation: fadeIn 0.8s ease-in-out;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.login-container {
    background: #ffffff;
    padding: 40px;
    width: 380px;
    border-radius: 15px;
    box-shadow: 0 15px 35px rgba(0,0,0,0.25);
    text-align: center;
    animation: slideUp 0.6s ease-out;
}

@keyframes slideUp {
    from { transform: translateY(40px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

.logo {
    width: 100px;
    margin-bottom: 20px;
}

.login-container h2 {
    margin-bottom: 25px;
    color: #1e293b;
}

.input-group {
    position: relative;
    margin-bottom: 18px;
}

.input-group i {
    position: absolute;
    top: 12px;
    left: 12px;
    color: #888;
    font-size: 14px;
}

.login-container input {
    width: 100%;
    padding: 12px 12px 12px 35px;
    border-radius: 8px;
    border: 1px solid #ddd;
    transition: 0.3s;
    font-size: 14px;
}

.login-container input:focus {
    outline: none;
    border-color: #2563eb;
    box-shadow: 0 0 6px rgba(37, 99, 235, 0.4);
}

.login-container button {
    width: 100%;
    padding: 12px;
    border: none;
    border-radius: 8px;
    background-color: #2563eb;
    color: white;
    font-size: 15px;
    cursor: pointer;
    transition: 0.3s;
}

.login-container button:hover {
    background-color: #1d4ed8;
}

.error {
    background-color: #fee2e2;
    color: #b91c1c;
    padding: 10px;
    border-radius: 6px;
    margin-bottom: 15px;
    font-size: 13px;
}

.login-footer {
    margin-top: 15px;
    font-size: 12px;
    color: #888;
}