:root {
    --primary-color: #3498db;
    --danger-color: #e74c3c;
    --light-color: #ecf0f1;
    --gray-color: #95a5a6;
    --shadow: 0 0 20px rgba(0, 0, 0, 0.1);
    --border-radius: 8px;
}

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

body {    
    background: url(/static/bg.png) no-repeat center / cover;
    backdrop-filter: blur(5px);
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #f5f7fa;
    color: #333;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: 20px;
}
@supports (background-image: url(/static/bg.webp)) {
    body {
        background: url(/static/bg.webp) no-repeat center / cover;
    }
}
.auth-container {
    width: 100%;
    max-width: 400px;
    margin: 0 auto;
}

.auth-box {
    background: rgba(255, 255, 255, 0.3);
    padding: 30px;
    border-radius: 12px;
    box-shadow: var(--shadow);
    text-align: center;
    animation: fadeIn 0.5s ease-in;
}

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

.auth-box h1 {
    font-size: 1.5rem;
    margin-bottom: 20px;
    color: #000000;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    text-shadow: 0 0 10px #000000a6;
}

form {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.form-group {
    position: relative;
}

.password-group {
    position: relative;
}

input {
    width: 100%;
    padding: 12px;
    border: 1px solid #ddd;
    border-radius: var(--border-radius);
    font-size: 1rem;
    outline: none;
    transition: border-color 0.2s;
}

input:focus {
    border-color: var(--primary-color);
}

.toggle-password {
    position: absolute;
    right: 10px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    cursor: pointer;
    color: var(--gray-color);
}

button[type="submit"] {
    padding: 12px;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: var(--border-radius);
    font-size: 1rem;
    cursor: pointer;
    transition: background-color 0.2s;
}

button[type="submit"]:hover {
    background: #2777f8;
}

button[type="submit"]:disabled {
    background: var(--gray-color);
    cursor: not-allowed;
}

.error {
    color: var(--danger-color);
    font-size: 0.875rem;
    margin-top: 10px;
}

.error.hidden {
    display: none;
}

.loading {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--primary-color);
    font-size: 0.875rem;
    margin-top: 10px;
}

.loading.hidden {
    display: none;
}
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    border: 0;
}

@media (max-width: 480px) {
    .auth-box {
        padding: 20px;
    }
    input, button[type="submit"] {
        font-size: 0.875rem;
        padding: 10px;
    }
}