body {
    background-image: linear-gradient(#ffd56c, #f12d7b);
    height: 100vh;
    font-family: 'Inter', sans-serif;
    color: #f0f0f0;
    margin: 0;
    padding: 0;
}

.main {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100%;
}

#login-container {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    padding: 20px;
}

/* --- Card --- */
.glass-card {
    width: 100%;
    max-width: 400px;
    padding: 40px;
    border-radius: 20px;
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
    display: flex;
    flex-direction: column;
    gap: 15px;
}

/* Headings and Text */
.glass-card .title {
    font-size: 1.8rem;
    font-weight: 700;
    color: #fff;
    margin-bottom: 20px;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.glass-card label {
    font-size: 0.9rem;
    font-weight: 500;
    color: #e0e0e0;
}

/* --- Input Fields --- */
.input-group {
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.glass-input {
    padding: 12px 15px;
    border: none;
    outline: none;
    border-radius: 10px;
    font-size: 1rem;
    background: rgba(255, 255, 255, 0.1);
    color: #ffffff;
    transition: all 0.3s ease;
}

.glass-input::placeholder {
    color: #a0a0a0;
}

.glass-input:focus {
    background: rgba(255, 255, 255, 0.2);
    box-shadow: 0 0 0 2px rgba(255, 255, 255, 0.5);
}

/* --- Button Style --- */
.glass-button {
    margin-top: 20px;
    padding: 12px;
    border: none;
    border-radius: 10px;
    font-weight: 600;
    cursor: pointer;
    font-size: 1.05rem;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
    color: #1a1a1a;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
    transition: all 0.3s ease;
}

.glass-button:hover {
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
    transform: translateY(-1px);
}

.glass-button:active {
    transform: translateY(0);
}

/* --- Checkbox and Alert Styling --- */
.checkbox-group {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.9rem;
}

.alert.alert-danger {
    padding: 10px;
    border-radius: 8px;
    background: rgba(255, 99, 71, 0.7);
    border: 1px solid tomato;
    color: #fff;
    font-size: 0.9rem;
    font-weight: 500;
}

.logout-notice {
    padding: 10px;
    border-radius: 8px;
    background: rgba(144, 238, 144, 0.3);
    border: 1px solid lightgreen;
    color: #f0f0f0;
    font-size: 0.9rem;
}

.logout-notice a {
    color: #00ffff;
    text-decoration: none;
    font-weight: bold;
}