.auth-container {
    width: 100%; /* Will take full width of its alignment context from body */
    max-width: 550px;
    margin: 30px auto;
}

.auth-card {
    background-color: #ffffff;
    border-radius: 16px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
    padding: 35px 40px; /* This internal padding is important */
    overflow: hidden;
    width: 100%; /* Make card take full width of .auth-container */
    box-sizing: border-box;
}

.register-card {
}

.auth-header {
    text-align: center;
    margin-bottom: 30px;
}

.auth-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background-color: #eef2ff; 
    color: #4f46e5; 
    margin-bottom: 15px;
}

    .auth-icon svg {
        width: 32px;
        height: 32px;
    }

.auth-title {
    font-size: 26px;
    font-weight: 700;
    color: #1f2937;
    margin-bottom: 8px;
}

.auth-subtitle {
    font-size: 15px;
    color: #6b7280;
    max-width: 350px;
    margin: 0 auto;
}

.error-summary {
    background-color: #fee2e2; 
    border: 1px solid #fecaca; 
    border-radius: 8px;
    padding: 15px;
    margin-bottom: 25px;
    display: flex;
    align-items: flex-start;
}

.error-icon {
    font-size: 20px;
    margin-right: 12px;
    color: #ef4444;
}

.error-content p {
    margin: 0 0 5px 0;
    color: #b91c1c; 
    font-size: 14px;
}

    .error-content p:last-child {
        margin-bottom: 0;
    }


.auth-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.form-row {
    display: flex;
    gap: 20px;
}

    .form-row .form-group {
        flex: 1; /* Each group takes equal width in a row */
    }

.form-group {
    display: flex;
    flex-direction: column;
}

.form-label {
    font-size: 14px;
    font-weight: 500;
    color: #374151;
    margin-bottom: 8px;
}

.input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

    .input-wrapper .input-icon {
        position: absolute;
        left: 14px;
        top: 50%;
        transform: translateY(-50%);
        color: #9ca3af; /* Muted icon color */
        pointer-events: none; /* So it doesn't block input focus */
    }

.form-input {
    width: 100%;
    padding: 12px 14px 12px 42px; /* Left padding for icon */
    border: 1px solid #d1d5db; /* Gray border */
    border-radius: 8px;
    font-size: 15px;
    color: #1f2937;
    background-color: #f9fafb;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
    box-sizing: border-box;
}

    .form-input:focus {
        outline: none;
        border-color: #4f46e5; /* Primary color focus */
        background-color: #fff;
        box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.2);
    }

        .form-input:focus + .input-icon,
        .input-wrapper:focus-within .input-icon { /* For when input inside wrapper is focused */
            color: #4f46e5;
        }

    .form-input::placeholder {
        color: #9ca3af;
    }

.field-validation-error {
    font-size: 13px;
    color: #ef4444; /* Red for errors */
    margin-top: 6px;
}

/* --- Password Specifics --- */
.password-toggle {
    position: absolute;
    right: 10px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    padding: 4px;
    cursor: pointer;
    color: #6b7280;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 4px;
}

    .password-toggle:hover {
        color: #4f46e5;
    }

    .password-toggle svg {
        width: 20px;
        height: 20px;
    }

.password-strength {
    margin-top: 8px;
}

.strength-bars {
    display: flex;
    gap: 4px;
    height: 6px;
    margin-bottom: 6px;
}

.strength-bar {
    flex: 1;
    background-color: #e5e7eb; /* Default bar color (gray) */
    border-radius: 3px;
    transition: background-color 0.3s ease;
}

.strength-text {
    font-size: 12px;
    color: #6b7280; /* Default text color */
}

.form-options {
    margin-top: 5px; /* Adjust spacing if needed */
}

.checkbox-label {
    display: flex;
    align-items: center;
    font-size: 14px;
    color: #4b5563;
    cursor: pointer;
    user-select: none; /* Prevent text selection on click */
}

    .checkbox-label input[type="checkbox"] {
        opacity: 0; /* Hide default checkbox */
        width: 0;
        height: 0;
        position: absolute;
    }

.checkmark {
    display: inline-block;
    width: 18px;
    height: 18px;
    border: 2px solid #d1d5db;
    border-radius: 4px;
    margin-right: 10px;
    background-color: #f9fafb;
    transition: background-color 0.2s ease, border-color 0.2s ease;
    position: relative;
}

.checkbox-label input[type="checkbox"]:checked + .checkmark {
    background-color: #4f46e5; /* Primary color when checked */
    border-color: #4f46e5;
}

.checkmark::after { /* The tick mark */
    content: "";
    position: absolute;
    display: none;
    left: 5px;
    top: 1px;
    width: 5px;
    height: 10px;
    border: solid white;
    border-width: 0 2px 2px 0;
    transform: rotate(45deg);
}

.checkbox-label input[type="checkbox"]:checked + .checkmark::after {
    display: block;
}

.checkbox-label .terms-link {
    color: #4f46e5;
    text-decoration: none;
    font-weight: 500;
}

    .checkbox-label .terms-link:hover {
        text-decoration: underline;
    }

/* --- Button --- */
.btn-primary {
    background: linear-gradient(135deg, #667eea 0%, #4f46e5 100%);
    color: white;
    font-size: 16px;
    font-weight: 600;
    padding: 14px 20px;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative; /* For loader positioning */
    min-height: 48px; /* To maintain height when text is replaced by spinner */
}

    .btn-primary:hover {
        opacity: 0.9;
        box-shadow: 0 4px 15px rgba(79, 70, 229, 0.3);
    }

    .btn-primary:disabled {
        background: #9ca3af; /* Muted background for disabled state */
        cursor: not-allowed;
        opacity: 0.7;
    }

.btn-text {
    transition: opacity 0.2s ease;
}

.btn-loader {
    display: flex; /* Will be set by JS */
    align-items: center;
    justify-content: center;
}

.spinner {
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: #ffffff;
    animation: spin 0.8s linear infinite;
}

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

/* --- Auth Footer --- */
.auth-footer {
    text-align: center;
    margin-top: 30px;
    font-size: 14px;
    color: #6b7280;
}

    .auth-footer .auth-link {
        color: #4f46e5; /* Primary color */
        text-decoration: none;
        font-weight: 500;
    }

        .auth-footer .auth-link:hover {
            text-decoration: underline;
        }

/* --- Responsive Adjustments --- */
@media (max-width: 600px) {
    .auth-container {
        margin-top: 10px;
        margin-bottom: 10px;
    }

    .auth-card {
        padding: 25px 20px;
        border-radius: 12px;
    }

    .form-row {
        flex-direction: column; /* Stack first name and last name on small screens */
        gap: 20px; /* Maintain gap when stacked */
    }

    .auth-title {
        font-size: 22px;
    }

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

    .btn-primary {
        padding: 12px 15px;
        font-size: 15px;
    }
}