/**
 * Universal PDF Download Modal - Frontend Styles
 * WCAG 2.2 AA Compliant
 */

/* Modal Overlay */
.updm-modal-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 999999;
    opacity: 0;
    transition: opacity 0.3s ease;
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
}

.updm-modal-overlay.updm-show {
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 1;
}

/* Modal Container */
.updm-modal-container {
    position: relative;
    background-color: var(--updm-modal-bg, #ffffff);
    border-radius: 8px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
    width: 90%;
    max-width: 500px;
    max-height: 90vh;
    overflow-y: auto;
    transform: scale(0.9);
    transition: transform 0.3s ease;
    animation: updmSlideIn 0.3s ease forwards;
}

@keyframes updmSlideIn {
    from {
        transform: translateY(-20px) scale(0.95);
        opacity: 0;
    }
    to {
        transform: translateY(0) scale(1);
        opacity: 1;
    }
}

.updm-modal-overlay.updm-show .updm-modal-container {
    transform: scale(1);
}

/* Close Button */
.updm-modal-close {
    position: absolute;
    top: 15px;
    right: 15px;
    width: 44px;
    height: 44px;
    background: transparent;
    border: none;
    cursor: pointer;
    font-size: 28px;
    line-height: 1;
    color: var(--updm-modal-text, #333333);
    opacity: 0.7;
    transition: opacity 0.2s ease, transform 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 4px;
    z-index: 10;
}

.updm-modal-close:hover,
.updm-modal-close:focus {
    opacity: 1;
    transform: scale(1.1);
}

.updm-modal-close:focus {
    outline: 2px solid var(--updm-button-bg, #007cba);
    outline-offset: 2px;
}

/* Modal Content */
.updm-modal-content {
    padding: 40px 30px 30px;
}

/* Modal Title */
.updm-modal-title {
    margin: 0 0 25px 0;
    font-size: calc(var(--updm-modal-text-size, 16px) * 1.5);
    font-weight: 600;
    color: var(--updm-modal-text, #333333);
    text-align: center;
    line-height: 1.3;
}

/* Form Styles */
.updm-download-form {
    margin: 0;
}

.updm-form-group {
    margin-bottom: 20px;
}

.updm-label {
    display: block;
    margin-bottom: 8px;
    font-size: var(--updm-modal-text-size, 16px);
    color: var(--updm-modal-text, #333333);
    font-weight: 500;
}

.updm-required {
    color: #d32f2f;
    font-weight: bold;
    margin-left: 2px;
}

.updm-input {
    width: 100%;
    padding: 12px 15px;
    font-size: 16px; /* Prevent zoom on iOS */
    border: 2px solid var(--updm-input-border, #dddddd);
    border-radius: 4px;
    background-color: var(--updm-input-bg, #ffffff);
    color: var(--updm-input-text, #333333);
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
    box-sizing: border-box;
}

.updm-input:focus {
    outline: none;
    border-color: var(--updm-button-bg, #007cba);
    box-shadow: 0 0 0 3px rgba(0, 124, 186, 0.1);
}

.updm-input.updm-error-field {
    border-color: #d32f2f;
}

.updm-input.updm-error-field:focus {
    box-shadow: 0 0 0 3px rgba(211, 47, 47, 0.1);
}

/* Error Messages */
.updm-error {
    display: block;
    margin-top: 5px;
    font-size: 14px;
    color: #d32f2f;
    min-height: 20px;
    line-height: 1.4;
}

/* Submit Button */
.updm-submit-button {
    width: 100%;
    min-height: var(--updm-button-height, 44px);
    padding: 12px 20px;
    background-color: var(--updm-button-bg, #007cba);
    color: var(--updm-button-text, #ffffff);
    border: none;
    border-radius: 4px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.2s ease, transform 0.1s ease, box-shadow 0.2s ease;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-top: 25px;
}

.updm-submit-button:hover:not(:disabled) {
    background-color: var(--updm-button-bg-hover, #005a8b);
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
}

.updm-submit-button:focus {
    outline: 2px solid var(--updm-button-bg, #007cba);
    outline-offset: 2px;
}

.updm-submit-button:active:not(:disabled) {
    transform: translateY(0);
}

.updm-submit-button:disabled {
    opacity: 0.7;
    cursor: not-allowed;
}

/* Loading Spinner */
.updm-spinner {
    display: none;
    width: 18px;
    height: 18px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top-color: var(--updm-button-text, #ffffff);
    border-radius: 50%;
    animation: updmSpin 0.8s linear infinite;
    margin-left: 10px;
}

.updm-submit-button.updm-loading .updm-spinner {
    display: inline-block;
}

.updm-submit-button.updm-loading .updm-button-text {
    margin-right: 10px;
}

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

/* Success Message */
.updm-success-message {
    padding: 20px;
    background-color: var(--updm-success-bg, #d4edda);
    border: 1px solid rgba(21, 87, 36, 0.2);
    border-radius: 4px;
    text-align: center;
    animation: updmFadeIn 0.3s ease;
}

@keyframes updmFadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.updm-success-text {
    margin: 0 0 15px 0;
    font-size: var(--updm-modal-text-size, 16px);
    color: var(--updm-success-text, #155724);
    font-weight: 500;
}

.updm-email-link {
    display: inline-block;
    padding: 10px 20px;
    background-color: var(--updm-button-bg, #007cba);
    color: var(--updm-button-text, #ffffff);
    text-decoration: none;
    border-radius: 4px;
    font-size: var(--updm-link-size, 14px);
    font-weight: 600;
    transition: background-color 0.2s ease, transform 0.1s ease;
}

.updm-email-link:hover {
    background-color: var(--updm-button-bg-hover, #005a8b);
    transform: translateY(-1px);
    color: var(--updm-button-text, #ffffff);
}

.updm-email-link:focus {
    outline: 2px solid var(--updm-button-bg, #007cba);
    outline-offset: 2px;
}

/* Accessibility - Focus Visible */
.updm-modal-container *:focus-visible {
    outline: 2px solid var(--updm-button-bg, #007cba);
    outline-offset: 2px;
}

/* High Contrast Mode Support */
@media (prefers-contrast: high) {
    .updm-modal-container {
        border: 2px solid currentColor;
    }

    .updm-input {
        border-width: 2px;
    }

    .updm-submit-button,
    .updm-email-link {
        border: 2px solid currentColor;
    }
}

/* Reduced Motion Support */
@media (prefers-reduced-motion: reduce) {
    .updm-modal-overlay,
    .updm-modal-container,
    .updm-modal-close,
    .updm-input,
    .updm-submit-button,
    .updm-email-link {
        transition: none;
        animation: none;
    }
}

/* Mobile Responsive */
@media (max-width: 600px) {
    .updm-modal-container {
        width: 95%;
        max-height: 95vh;
        margin: 10px;
    }

    .updm-modal-content {
        padding: 30px 20px 20px;
    }

    .updm-modal-title {
        font-size: calc(var(--updm-modal-text-size, 16px) * 1.3);
        margin-bottom: 20px;
    }

    .updm-input {
        font-size: 16px; /* Prevent zoom on iOS */
        padding: 14px 15px; /* Larger touch target */
    }

    .updm-submit-button {
        min-height: 48px; /* Larger touch target on mobile */
        font-size: 16px;
    }

    .updm-modal-close {
        width: 48px;
        height: 48px;
    }
}

/* Dark Mode Support */
@media (prefers-color-scheme: dark) {
    .updm-modal-overlay {
        background-color: rgba(0, 0, 0, 0.8);
    }

    /* Only apply if custom colors are not set */
    .updm-modal-container:not([style*="--updm-modal-bg"]) {
        background-color: #1e1e1e;
        color: #ffffff;
    }

    .updm-input:not([style*="--updm-input-bg"]) {
        background-color: #2d2d2d;
        color: #ffffff;
        border-color: #444444;
    }
}

/* Print Styles */
@media print {
    .updm-modal-overlay {
        display: none !important;
    }
}

/* Screen Reader Only Text */
.updm-sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

/* Focus Trap Helper */
.updm-focus-trap {
    position: absolute;
    opacity: 0;
    pointer-events: none;
}

/* Loading State */
.updm-loading-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(255, 255, 255, 0.8);
    display: none;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    z-index: 5;
}

.updm-modal-container.updm-processing .updm-loading-overlay {
    display: flex;
}