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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.login-container {
    width: 100%;
    max-width: 450px;
}

.login-box {
    background: white;
    border-radius: 16px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    padding: 48px 40px;
    animation: slideUp 0.5s ease-out;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.logo {
    text-align: center;
    margin-bottom: 24px;
}

.logo-image {
    width: 80px;
    height: 80px;
    object-fit: contain;
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
}

h1 {
    text-align: center;
    color: #1a202c;
    font-size: 28px;
    margin-bottom: 8px;
    font-weight: 700;
}

.subtitle {
    text-align: center;
    color: #718096;
    font-size: 15px;
    margin-bottom: 32px;
}

.form-group {
    margin-bottom: 24px;
}

label {
    display: block;
    color: #2d3748;
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 8px;
}

input[type="email"],
input[type="password"],
input[type="text"] {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid #e2e8f0;
    border-radius: 8px;
    font-size: 15px;
    transition: all 0.3s ease;
    background: #f7fafc;
}

input:focus {
    outline: none;
    border-color: #2563eb;
    background: white;
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

input::placeholder {
    color: #a0aec0;
}

small {
    display: block;
    color: #718096;
    font-size: 13px;
    margin-top: 4px;
}

.btn-primary, .btn-secondary {
    width: 100%;
    padding: 14px;
    border: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
}

.btn-primary {
    background: linear-gradient(135deg, #1E43B0 0%, #2563eb 100%);
    color: white;
    margin-top: 8px;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(37, 99, 235, 0.4);
}

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

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

.btn-secondary {
    background: #f7fafc;
    color: #4a5568;
    border: 2px solid #e2e8f0;
    margin-top: 12px;
}

.btn-secondary:hover {
    background: #edf2f7;
}

.btn-loading {
    display: none;
}

.error-message {
    background: #fed7d7;
    color: #c53030;
    padding: 12px 16px;
    border-radius: 8px;
    margin-bottom: 16px;
    font-size: 14px;
    display: none;
    border-left: 4px solid #fc8181;
}

.error-message.show {
    display: block;
    animation: shake 0.5s ease;
}

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

.info-message {
    background: #e6fffa;
    color: #234e52;
    padding: 12px 16px;
    border-radius: 8px;
    margin-bottom: 24px;
    font-size: 14px;
    border-left: 4px solid #38b2ac;
    line-height: 1.5;
}

.login-footer {
    text-align: center;
    margin-top: 32px;
    padding-top: 24px;
    border-top: 1px solid #e2e8f0;
}

.login-footer p {
    color: #718096;
    font-size: 13px;
}

@media (max-width: 480px) {
    .login-box {
        padding: 36px 24px;
    }

    h1 {
        font-size: 24px;
    }

    .subtitle {
        font-size: 14px;
    }
}