/* General Body and Reset Styles */
:root {
    --primary-color: #6a0dad; /* A vibrant purple */
    --background-color: #121212;
    --surface-color: #1e1e1e;
    --text-color: #e0e0e0;
    --text-secondary-color: #a0a0a0;
    --border-color: #333;
    --success-color: #4CAF50;
    --error-color: #F44336;
}

body {
    background-color: var(--background-color);
    color: var(--text-color);
    font-family: 'Inter', sans-serif;
    margin: 0;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* Layout */
.container {
    width: 90%;
    max-width: 1100px;
    margin: 0 auto;
}

main {
    flex-grow: 1;
    padding: 2rem 0;
}

/* Header & Navigation */
header {
    background-color: var(--surface-color);
    padding: 1rem 0;
    border-bottom: 1px solid var(--border-color);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

    header nav {
        display: flex;
        justify-content: space-between;
        align-items: center;
    }

.logo {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--primary-color);
    text-decoration: none;
    transition: transform 0.3s ease;
}

    .logo:hover {
        transform: scale(1.05);
    }

.nav-links {
    display: flex;
    align-items: center;
}

.nav-link {
    color: var(--text-secondary-color);
    text-decoration: none;
    margin-left: 1.5rem;
    font-weight: 500;
    transition: color 0.3s ease;
}

    .nav-link:hover {
        color: var(--primary-color);
    }

.user-info {
    display: flex;
    align-items: center;
    gap: 1rem;
}

/* Footer */
footer {
    background-color: var(--surface-color);
    color: var(--text-secondary-color);
    text-align: center;
    padding: 1.5rem 0;
    margin-top: auto;
    border-top: 1px solid var(--border-color);
}

/* Form Elements & Cards */
.card {
    background-color: var(--surface-color);
    padding: 2.5rem;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
    border: 1px solid var(--border-color);
    animation: fadeIn 0.5s ease-in-out;
}

/* New User Profile Header on Default.aspx */
.user-profile-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 2rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid var(--border-color);
}

.profile-pic-large {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    border: 3px solid var(--primary-color);
}

.user-profile-header h3 {
    margin: 0;
    font-weight: 500;
    font-size: 1.5rem;
}


.form-group {
    margin-bottom: 1.5rem;
}

.form-label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--text-secondary-color);
}

.form-control {
    width: 100%;
    padding: 0.8rem 1rem;
    background-color: var(--background-color);
    border: 1px solid var(--border-color);
    color: var(--text-color);
    border-radius: 8px;
    font-size: 1rem;
    transition: border-color 0.3s, box-shadow 0.3s;
}

    .form-control:focus {
        outline: none;
        border-color: var(--primary-color);
        box-shadow: 0 0 0 3px rgba(106, 13, 173, 0.3);
    }

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.8rem 1.8rem;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    text-decoration: none;
    transition: all 0.3s ease;
    text-align: center;
}

.btn-primary {
    background-color: var(--primary-color);
    color: white;
}

    .btn-primary:hover {
        background-color: #5a0b9a;
        transform: translateY(-2px);
        box-shadow: 0 4px 10px rgba(106, 13, 173, 0.4);
    }

.btn-secondary {
    background-color: var(--surface-color);
    color: var(--text-color);
    border: 1px solid var(--border-color);
}

    .btn-secondary:hover {
        background-color: #2a2a2a;
        border-color: var(--primary-color);
    }

.btn-google {
    background-color: #fff;
    color: #444;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    border: 1px solid #ddd;
}

    .btn-google:hover {
        background-color: #f5f5f5;
        box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    }

    .btn-google img {
        width: 20px;
        height: 20px;
    }


/* QR Code Display */
.qr-code-container {
    margin-top: 2rem;
    text-align: center;
    padding: 2rem;
    background-color: #fff;
    border-radius: 12px;
    min-height: 250px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    transition: all 0.4s ease;
}

    .qr-code-container img {
        max-width: 200px;
        height: auto;
        border: 5px solid var(--surface-color);
        border-radius: 8px;
    }

.qr-code-placeholder {
    color: var(--text-secondary-color);
}

.download-links {
    margin-top: 1rem;
    display: flex;
    gap: 1rem;
    justify-content: center;
}

/* Page Specific Styles */
.login-container {
    max-width: 450px;
    margin: 4rem auto;
    text-align: center;
}

    .login-container h1 {
        font-size: 2.5rem;
        margin-bottom: 1rem;
    }

    .login-container p {
        color: var(--text-secondary-color);
        margin-bottom: 2rem;
    }

.history-grid {
    width: 100%;
    border-collapse: collapse;
    margin-top: 2rem;
}

    .history-grid th, .history-grid td {
        padding: 1rem;
        text-align: left;
        border-bottom: 1px solid var(--border-color);
    }

    .history-grid th {
        background-color: #2a2a2a;
        font-weight: 600;
    }

    .history-grid tr:hover {
        background-color: var(--surface-color);
    }

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }

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

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        width: 95%;
    }

    header nav {
        flex-direction: column;
        gap: 1rem;
    }
}