/* Popup System Styles */

/* CSS Variables for Popup System */
:root {
    /* Layout Foundation */
    --font-family: 'Inter', system-ui, sans-serif;
    --border-radius: 0.75rem;
    --form-max-width: 600px;
    
    /* Spacing Scale */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing: 1rem;
    --spacing-lg: 1.25rem;
    --spacing-xl: 1.5rem;
    --spacing-2xl: 2rem;
    --spacing-3xl: 2.5rem;
    --spacing-4xl: 3rem;
    
    /* Typography Scale */
    --font-size-sm: 0.875rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --letter-spacing-tight: -0.025em;
    --line-height-tight: 1.2;
    --line-height-relaxed: 1.7;
    
    /* Shadows & Effects */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, var(--color-primary), var(--color-accent));
    
    /* Color Variables - Default fallbacks */
    --color-primary: #1f2937;
    --color-secondary: #6b7280;
    --color-accent: #3b82f6;
    --color-text: #1f2937;
    --color-text-light: #6b7280;
    --color-background: #ffffff;
    --color-border: #e5e7eb;
    --color-button-light: #f3f4f6;
    --color-muted: #9ca3af;
    --color-success: #059669;
    --color-success-bg: #ecfdf5;
    --color-success-border: #a7f3d0;
    --color-error: #dc2626;
    --color-error-bg: #fef2f2;
    --color-error-border: #fecaca;
}

/* Popup System */
.popup {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.8);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    padding: 0.5rem;
    backdrop-filter: blur(4px);
}

.popup[aria-hidden="false"] {
    display: flex;
}

.popup__content {
    background: var(--color-background, #ffffff);
    border-radius: var(--border-radius);
    max-width: var(--form-max-width);
    max-height: 90vh;
    overflow-y: auto;
    position: relative;
    width: 100%;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--color-border, #e5e7eb);
}

.popup__close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: var(--color-button-light, #f3f4f6);
    border: none;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    font-size: var(--font-size-xl);
    cursor: pointer;
    color: var(--color-text-light, #6b7280);
    z-index: 1001;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background-color 0.2s ease, color 0.2s ease;
}

.popup__close:hover {
    background: var(--color-border, #e5e7eb);
    color: var(--color-text, #1f2937);
}

/* Removed - using .popup__body class instead */

/* Popup Body - for content loaded directly into popup-body */
.popup__body {
    padding: var(--spacing-2xl);
    background: var(--color-background);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-lg);
}


.popup__body h1,
.popup__title {
    color: var(--color-primary, #1f2937);
    font-size: var(--font-size-2xl);
    font-weight: 700;
    margin: 0 0 var(--spacing) 0;
    text-align: center;
    letter-spacing: var(--letter-spacing-tight);
}

.popup__body h2 {
    color: var(--color-secondary, #6b7280);
    font-size: var(--font-size-2xl);
    font-weight: 700;
    margin: var(--spacing-2xl) 0 var(--spacing) 0;
    letter-spacing: var(--letter-spacing-tight);
}

.popup__body p {
    margin-bottom: var(--spacing);
    line-height: var(--line-height-relaxed);
}

.popup__body ul {
    margin-bottom: var(--spacing);
    padding-left: var(--spacing-lg);
}

.popup__body li {
    margin-bottom: var(--spacing-sm);
    line-height: var(--line-height-relaxed);
}

.popup__last-updated {
    font-style: italic;
    color: var(--color-text-light, #6b7280);
    font-size: var(--font-size-sm);
    margin-bottom: var(--spacing-2xl);
}

.popup__info-text {
    color: var(--color-text-light, #6b7280);
    font-size: var(--font-size-sm);
    margin-bottom: var(--spacing-xl);
    line-height: var(--line-height-relaxed);
}

/* Popup body specific overrides for forms */
.popup__body .form__group {
    margin-bottom: var(--spacing-lg);
}

.popup__body .form__btn-submit {
    width: 100%;
    margin-top: var(--spacing);
    padding: var(--spacing-sm) var(--spacing-xl);
    font-size: var(--font-size-lg);
    font-weight: 600;
}

/* Form Message Styles */
.form__message {
    font-weight: 500;
    text-align: center;
    padding: var(--spacing);
    border-radius: var(--border-radius);
    margin-top: var(--spacing);
}

.form__message--success {
    color: var(--color-success, #059669);
    background-color: var(--color-success-bg, #ecfdf5);
    border: 1px solid var(--color-success-border, #a7f3d0);
}

.form__message--error {
    color: var(--color-error, #dc2626);
    background-color: var(--color-error-bg, #fef2f2);
    border: 1px solid var(--color-error-border, #fecaca);
}

.form__required {
    color: var(--color-accent);
    font-weight: 600;
}

.form__checkbox-group {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
}

.form__checkbox-group input[type="checkbox"] {
    width: auto;
    margin: 0;
    flex-shrink: 0;
    margin-top: 0.125rem;
}

.form__checkbox-group label {
    margin: 0;
    font-size: var(--font-size-sm);
    line-height: 1.4;
    font-weight: 500;
}

.popup__hidden {
    display: none;
}

/* Form Styles - Consolidated BEM Classes */
.form__group {
    margin-bottom: 1.25rem;
}

.form__group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--color-text, #1f2937);
    font-size: var(--font-size-sm);
}

.form__group input,
.form__group select,
.form__group textarea {
    width: 100%;
    padding: 0.875rem 1rem;
    border: 2px solid var(--color-border, #e5e7eb);
    border-radius: var(--border-radius);
    font-size: var(--font-size-lg);
    font-family: inherit;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
    background: var(--color-background, #ffffff);
}

.form__group input:focus,
.form__group select:focus,
.form__group textarea:focus {
    border-color: var(--color-primary, #1f2937);
    outline: none;
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.form__btn-submit {
    background: var(--gradient-primary);
    color: white;
    border: none;
    padding: 0.875rem 1.75rem;
    border-radius: var(--border-radius);
    font-size: var(--font-size-lg);
    font-weight: 600;
    cursor: pointer;
    text-decoration: none;
    display: inline-block;
    text-align: center;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    box-shadow: var(--shadow-sm);
}

.form__btn-submit:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.form__btn-submit:focus {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

.form__btn-submit:disabled {
    background: var(--color-muted, #9ca3af);
    cursor: not-allowed;
    opacity: 0.6;
}


/* Responsive Design */
@media (min-width: 768px) {
    .popup__content {
        margin: 0.5rem;
    }
}

@media (max-width: 767px) {
    .popup {
        padding: 0.25rem;
    }
    
    .popup__content {
        margin: 0.5rem;
        max-height: calc(100vh - 1rem);
    }
    
    .popup__body {
        padding: 1.5rem;
    }
}

/* Mobile Improvements */
.form__btn-submit, .popup__close a {
    min-height: 44px;
    min-width: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Utility Classes - BEM Modifiers */
.popup--visible { display: flex; }
.popup--hidden { display: none; }

/* Form Field States */
.form__field--error {
    border-color: var(--color-error, #dc2626) !important;
    box-shadow: 0 0 0 3px rgba(220, 38, 38, 0.1) !important;
}

.form__field--autofilled {
    background-color: rgba(59, 130, 246, 0.05) !important;
    border-color: var(--color-accent, #3b82f6) !important;
}

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