/* Modal Overlay */
.modal-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.7);
    z-index: 9999;
    /* Higher than navbar */
    justify-content: center;
    align-items: center;
    opacity: 0;
    transition: opacity 0.3s ease;
    backdrop-filter: blur(5px);
}

.modal-overlay.active {
    display: flex;
    opacity: 1;
}

/* Modal Container */
.callback-modal {
    background-color: var(--color-secondary-dark);
    width: 90%;
    max-width: 500px;
    border-radius: var(--border-radius-xl);
    box-shadow: var(--shadow-xl);
    overflow: hidden;
    position: relative;
    transform: translateY(20px);
    transition: transform 0.3s ease;
    max-height: 90vh;
    display: flex;
    flex-direction: column;
    border: 1px solid rgba(16, 185, 129, 0.2);
}

.modal-overlay.active .callback-modal {
    transform: translateY(0);
}

/* Modal Header */
.modal-header {
    background: linear-gradient(135deg, var(--color-accent-green) 0%, var(--color-accent-green-dark) 100%);
    padding: 20px 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: var(--color-white);
}

.modal-header h2 {
    margin: 0;
    font-size: 1.5rem;
    font-weight: 600;
    font-family: var(--font-heading);
}

.close-btn {
    background: none;
    border: none;
    color: var(--color-white);
    font-size: 24px;
    cursor: pointer;
    line-height: 1;
    padding: 0;
    opacity: 0.8;
    transition: opacity 0.2s;
}

.close-btn:hover {
    opacity: 1;
}

/* Modal Body */
.modal-body {
    padding: 24px;
    overflow-y: auto;
    /* Scrollbar Styling */
    scrollbar-width: thin;
    scrollbar-color: var(--color-gray-dark) var(--color-secondary-dark);
}

.modal-body::-webkit-scrollbar {
    width: 8px;
}

.modal-body::-webkit-scrollbar-track {
    background: rgba(31, 41, 55, 0.5);
    border-radius: 4px;
}

.modal-body::-webkit-scrollbar-thumb {
    background-color: var(--color-gray-dark);
    border-radius: 4px;
    border: 2px solid var(--color-secondary-dark);
}

.modal-body::-webkit-scrollbar-thumb:hover {
    background-color: var(--color-accent-green);
}

.modal-body p.modal-intro {
    margin-top: 0;
    margin-bottom: 20px;
    color: var(--color-gray-light);
    font-size: 0.95rem;
}

/* Form Styles */
.modal-form .form-group {
    margin-bottom: 16px;
}

.modal-form label {
    display: block;
    margin-bottom: 6px;
    color: var(--color-gray-light);
    font-weight: 500;
    font-size: 0.9rem;
}

.modal-form input,
.modal-form select,
.modal-form textarea {
    width: 100%;
    padding: 10px 12px;
    background-color: var(--color-primary-dark);
    border: 1px solid var(--color-gray-dark);
    color: var(--color-white);
    border-radius: 6px;
    font-size: 0.95rem;
    transition: border-color 0.2s;
    font-family: var(--font-body);
    resize: none;
}

.modal-form input::placeholder,
.modal-form select::placeholder,
.modal-form textarea::placeholder {
    color: var(--color-gray);
    opacity: 0.7;
}

.modal-form input:focus,
.modal-form select:focus,
.modal-form textarea:focus {
    outline: none;
    border-color: var(--color-accent-green);
    box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.1);
}

.modal-form .btn-submit {
    width: 100%;
    padding: 12px;
    background: linear-gradient(135deg, var(--color-accent-green) 0%, var(--color-accent-green-light) 100%);
    color: var(--color-white);
    border: none;
    border-radius: 6px;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.2s;
    margin-top: 10px;
    box-shadow: var(--shadow-green);
}

.modal-form .btn-submit:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 20px rgba(16, 185, 129, 0.4);
}

/* Loading & Success States */
.modal-form .btn-submit.loading {
    opacity: 0.7;
    cursor: not-allowed;
    position: relative;
    color: transparent;
}

.modal-form .btn-submit.loading::after {
    content: "";
    position: absolute;
    top: 50%;
    left: 50%;
    width: 20px;
    height: 20px;
    border: 2px solid #ffffff;
    border-radius: 50%;
    border-top-color: transparent;
    animation: spin 0.8s linear infinite;
    transform: translate(-50%, -50%);
}

@keyframes spin {
    to {
        transform: translate(-50%, -50%) rotate(360deg);
    }
}

.form-message {
    padding: 12px;
    border-radius: 6px;
    margin-top: 16px;
    font-size: 0.9rem;
    display: none;
}

.form-message.success {
    display: block;
    background-color: #D1FAE5;
    color: #065F46;
    border: 1px solid #A7F3D0;
}

.form-message.error {
    display: block;
    background-color: #FEE2E2;
    color: #991B1B;
    border: 1px solid #FECACA;
}