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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.login-container {
    width: 100%;
    max-width: 400px;
    margin: auto;
}

.login-box {
    background: white;
    border-radius: 20px;
    padding: 40px 30px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
    animation: fadeInUp 0.6s ease-out;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.logo {
    text-align: center;
    margin-bottom: 25px;
}

.logo-icon {
    font-size: 60px;
    display: block;
    margin-bottom: 15px;
    animation: bounce 2s infinite;
}

@keyframes bounce {

    0%,
    100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-10px);
    }
}

.logo h1 {
    color: #333;
    font-size: 28px;
    font-weight: bold;
}

.version {
    color: #999;
    font-size: 12px;
    margin-top: 5px;
}

.subtitle {
    text-align: center;
    color: #666;
    margin-bottom: 30px;
    font-size: 14px;
}

.input-group {
    margin-bottom: 20px;
}

.input-group label {
    display: block;
    color: #333;
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 8px;
}

.input-group input {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid #e1e8ed;
    border-radius: 10px;
    font-size: 16px;
    transition: all 0.3s ease;
    outline: none;
}

.input-group input:focus {
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.input-group input::placeholder {
    color: #999;
}

.password-wrapper {
    position: relative;
}

.password-wrapper input {
    width: 100%;
    padding-right: 45px;
}

.toggle-password {
    position: absolute;
    right: 10px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    cursor: pointer;
    font-size: 18px;
    opacity: 0.6;
    transition: opacity 0.3s;
}

.toggle-password:hover {
    opacity: 1;
}

.error-msg {
    background: #fee;
    color: #c33;
    padding: 10px 15px;
    border-radius: 8px;
    font-size: 13px;
    margin-bottom: 15px;
    text-align: center;
    display: none;
    border-left: 3px solid #c33;
}

.error-msg.error {
    background: #fee;
    color: #c33;
    border-left-color: #c33;
}

.error-msg.success {
    background: #efe;
    color: #27ae60;
    border-left-color: #27ae60;
}

.login-btn {
    width: 100%;
    padding: 14px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    border-radius: 10px;
    font-size: 18px;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
    position: relative;
}

.login-btn:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.5);
}

.login-btn:active:not(:disabled) {
    transform: translateY(0);
}

.login-btn:disabled {
    opacity: 0.7;
    cursor: not-allowed;
}

.spinner {
    display: inline-block;
    width: 16px;
    height: 16px;
    border: 2px solid #fff;
    border-radius: 50%;
    border-top-color: transparent;
    animation: spin 0.8s linear infinite;
    margin-right: 8px;
    vertical-align: middle;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

.footer {
    text-align: center;
    margin-top: 25px;
    padding-top: 20px;
    border-top: 1px solid #eee;
}

.footer p {
    color: #999;
    font-size: 12px;
    margin-bottom: 5px;
}

.hint {
    color: #667eea !important;
    font-weight: 600;
}

.db-info {
    background: #f8f9fa;
    border-radius: 10px;
    padding: 15px;
    margin-top: 20px;
}

.db-info h4 {
    color: #333;
    font-size: 14px;
    margin-bottom: 10px;
}

.db-info ul {
    list-style: none;
    padding: 0;
}

.db-info li {
    color: #666;
    font-size: 12px;
    padding: 3px 0;
}

.db-info li:before {
    content: "✓ ";
    color: #27ae60;
    font-weight: bold;
}

@media (max-width: 480px) {
    .login-box {
        padding: 30px 20px;
    }

    .logo-icon {
        font-size: 50px;
    }

    .logo h1 {
        font-size: 24px;
    }
}