* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #1e3c72 0%, #2a5298 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: 20px;
    position: relative;
    overflow: hidden;
}

body::before {
    content: '';
    position: absolute;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(77, 208, 225, 0.1) 0%, transparent 70%);
    border-radius: 50%;
    top: -250px;
    right: -250px;
    animation: float 20s infinite ease-in-out;
}

body::after {
    content: '';
    position: absolute;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(38, 198, 218, 0.1) 0%, transparent 70%);
    border-radius: 50%;
    bottom: -200px;
    left: -200px;
    animation: float 15s infinite ease-in-out reverse;
}

@keyframes float {
    0%, 100% {
        transform: translate(0, 0) scale(1);
    }
    50% {
        transform: translate(50px, 50px) scale(1.1);
    }
}

.login-container {
    width: 100%;
    max-width: 450px;
    position: relative;
    z-index: 1;
}

.login-box {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    border-radius: 20px;
    padding: 50px 40px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3), 0 0 0 1px rgba(255, 255, 255, 0.1);
    animation: fadeIn 0.5s ease-out;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.login-header {
    text-align: center;
    margin-bottom: 40px;
}

.login-header h1 {
    font-size: 36px;
    background: linear-gradient(135deg, #1e3c72 0%, #2a5298 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 10px;
    font-weight: 700;
    letter-spacing: -0.5px;
}

.login-header p {
    color: #666;
    font-size: 15px;
}

.login-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-group label {
    font-size: 14px;
    font-weight: 600;
    color: #333;
}

.form-group input {
    padding: 14px 18px;
    border: 2px solid #e8ecf1;
    border-radius: 10px;
    font-size: 15px;
    transition: all 0.3s;
    outline: none;
    background: #f8f9fb;
}

.form-group input:focus {
    border-color: #4dd0e1;
    background: white;
    box-shadow: 0 0 0 4px rgba(77, 208, 225, 0.1);
    transform: translateY(-1px);
}

.form-options {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 14px;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    color: #666;
}

.checkbox-label input[type="checkbox"] {
    width: 16px;
    height: 16px;
    cursor: pointer;
}

.forgot-link {
    color: #2a5298;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s;
}

.forgot-link:hover {
    color: #4dd0e1;
}

.btn-login {
    padding: 16px;
    background: linear-gradient(135deg, #1e3c72 0%, #2a5298 100%);
    color: white;
    border: none;
    border-radius: 10px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    margin-top: 10px;
    position: relative;
    overflow: hidden;
}

.btn-login::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s;
}

.btn-login:hover::before {
    left: 100%;
}

.btn-login:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(30, 60, 114, 0.3);
}

.btn-login:active {
    transform: translateY(0);
}

.btn-login:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

.error-message {
    padding: 14px 16px;
    background: linear-gradient(135deg, #fee 0%, #fdd 100%);
    border-left: 4px solid #e53935;
    border-radius: 8px;
    color: #c62828;
    font-size: 14px;
    text-align: center;
    animation: shake 0.5s;
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-10px); }
    75% { transform: translateX(10px); }
}

.login-footer {
    margin-top: 35px;
    padding-top: 25px;
    text-align: center;
    font-size: 14px;
    color: #666;
    border-top: 1px solid #e8ecf1;
}

.login-footer a {
    color: #2a5298;
    text-decoration: none;
    font-weight: 600;
    transition: color 0.3s;
}

.login-footer a:hover {
    color: #4dd0e1;
}

/* Responsive */
@media (max-width: 480px) {
    body::before,
    body::after {
        display: none;
    }
    
    .login-box {
        padding: 35px 28px;
    }
    
    .login-header h1 {
        font-size: 30px;
    }
    
    .form-options {
        flex-direction: column;
        align-items: flex-start;
        gap: 12px;
    }
    
    .search-box {
        display: none;
    }
}