/**
 * SignalKit - Public Styles
 *
 * @package SignalKit
 * @version 1.0.0
 */

/* ========================================
   CSS CUSTOM PROPERTIES - DEFAULTS ONLY
   Actual values come from inline styles in template
======================================== */

:root {
    /* Default Colors - Follow Banner */
    --signalkit-primary: #4285f4;
    --signalkit-primary-hover: #3367d6;
    --signalkit-secondary: #ffffff;
    --signalkit-accent: #34a853;
    --signalkit-text: #202124;
    
    /* Default Sizing - Will be overridden by inline styles */
    --signalkit-width: 360px;
    --signalkit-padding: 16px;
    --signalkit-headline-size: 15px;
    --signalkit-description-size: 13px;
    --signalkit-button-size: 14px;
    --signalkit-radius: 8px;
    
    /* Z-Index Stacking */
    --signalkit-z-banner: 9999;
    --signalkit-z-overlay: 10000;
    
    /* Transitions */
    --signalkit-transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ========================================
   BASE BANNER CONTAINER
   Core styles that apply to all banners
======================================== */

.signalkit-banner {
    /* Layout */
    position: fixed;
    z-index: var(--signalkit-z-banner);
    width: var(--signalkit-width);
    max-width: calc(100vw - 40px);
    
    /* Spacing - Uses CSS variable from inline styles */
    padding: var(--signalkit-padding);
    
    /* Visual Styling */
    background: var(--signalkit-secondary);
    border-radius: var(--signalkit-radius);
    border-left: 4px solid var(--signalkit-primary);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.12), 
                0 1px 3px rgba(0, 0, 0, 0.08);
    
    /* Typography */
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, 
                 "Helvetica Neue", Arial, sans-serif;
    font-size: 14px;
    line-height: 1.5;
    color: var(--signalkit-text);
    
    /* Animation - Hidden by default */
    opacity: 0;
    transform: translateY(20px);
    transition: all var(--signalkit-transition);
    
    /* Performance Optimizations */
    will-change: transform, opacity;
    backface-visibility: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Active State - Banner becomes visible */
.signalkit-banner.active {
    opacity: 1;
    transform: translateY(0);
}

/* Banner Content Grid Layout - FIXED FOR DESKTOP */
.signalkit-banner-content {
    position: relative;
    display: grid;
    grid-template-columns: auto 1fr;
    grid-template-rows: auto auto;
    grid-template-areas: 
        "icon text"
        "icon actions";
    gap: 12px;
    align-items: start;
    min-height: 60px;
    padding-right: 40px; /* FIXED: Space for close button on desktop */
}

/* ========================================
   DESKTOP POSITIONING SYSTEM
   Fixed positions for desktop layout
======================================== */

/* Bottom Positions */
.signalkit-position-bottom_left,
.signalkit-banner.signalkit-position-bottom_left {
    bottom: 20px;
    left: 20px;
}

.signalkit-position-bottom_right,
.signalkit-banner.signalkit-position-bottom_right {
    bottom: 20px;
    right: 20px;
}

.signalkit-position-bottom_center,
.signalkit-banner.signalkit-position-bottom_center {
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%) translateY(20px);
}

.signalkit-position-bottom_center.active {
    transform: translateX(-50%) translateY(0);
}

/* Top Positions */
.signalkit-position-top_left,
.signalkit-banner.signalkit-position-top_left {
    top: 20px;
    left: 20px;
}

.signalkit-position-top_right,
.signalkit-banner.signalkit-position-top_right {
    top: 20px;
    right: 20px;
}

.signalkit-position-top_center,
.signalkit-banner.signalkit-position-top_center {
    top: 20px;
    left: 50%;
    transform: translateX(-50%) translateY(-20px);
}

.signalkit-position-top_center.active {
    transform: translateX(-50%) translateY(0);
}

/* ========================================
   BANNER TYPE SPECIFIC STYLES
   Different defaults for follow vs preferred
======================================== */

.signalkit-banner-follow {
    /* Uses default :root colors (blue) */
}

.signalkit-banner-preferred {
    /* Override with red/yellow theme */
    --signalkit-primary: #ea4335;
    --signalkit-primary-hover: #d93025;
    --signalkit-accent: #fbbc04;
}

/* ========================================
   ICON STYLES
   Banner icon/logo area
======================================== */

.signalkit-icon {
    grid-area: icon;
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.2s ease;
}

.signalkit-banner:hover .signalkit-icon {
    transform: scale(1.05);
}

.signalkit-icon svg {
    width: 100%;
    height: 100%;
    display: block;
}

/* ========================================
   TEXT CONTENT STYLES
   Headline and description
======================================== */

.signalkit-text {
    grid-area: text;
    flex: 1;
    min-width: 0; /* Prevent grid blowout */
    word-wrap: break-word;
    overflow-wrap: break-word;
}

.signalkit-headline {
    margin: 0 0 4px 0;
    font-size: var(--signalkit-headline-size);
    font-weight: 600;
    line-height: 1.3;
    color: var(--signalkit-text);
}

.signalkit-description {
    margin: 0;
    font-size: var(--signalkit-description-size);
    line-height: 1.4;
    color: var(--signalkit-text);
    opacity: 0.85;
}

/* ========================================
   ACTION BUTTONS & LINKS
   Primary CTA and educational link
======================================== */

.signalkit-actions {
    grid-area: actions;
    display: flex;
    flex-direction: column;
    gap: 8px;
    align-items: flex-start;
}

/* Primary Button */
.signalkit-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 10px 20px;
    
    /* Visual Styling */
    background: var(--signalkit-primary);
    color: var(--signalkit-secondary);
    border: none;
    border-radius: 24px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    
    /* Typography */
    font-size: var(--signalkit-button-size);
    font-weight: 500;
    text-decoration: none;
    white-space: nowrap;
    
    /* Interaction */
    cursor: pointer;
    transition: all 0.2s ease;
    touch-action: manipulation;
    -webkit-tap-highlight-color: transparent;
}

.signalkit-button:hover {
    background: var(--signalkit-primary-hover);
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
}

.signalkit-button:active {
    transform: translateY(0);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.signalkit-button:focus-visible {
    outline: 2px solid var(--signalkit-primary);
    outline-offset: 2px;
}

/* Button Icons */
.signalkit-icon-star,
.signalkit-icon-external {
    width: 14px;
    height: 14px;
    flex-shrink: 0;
}

.signalkit-button-text {
    display: inline;
}

/* Educational Link (Learn More) */
.signalkit-educational-link {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: 11px;
    color: var(--signalkit-text);
    opacity: 0.7;
    text-decoration: none;
    transition: opacity 0.2s ease;
    cursor: pointer;
}

.signalkit-educational-link:hover {
    opacity: 1;
    text-decoration: underline;
}

.signalkit-educational-link:focus-visible {
    outline: 2px solid var(--signalkit-primary);
    outline-offset: 2px;
    border-radius: 2px;
}

.signalkit-educational-text {
    display: inline;
}

.signalkit-educational-link svg {
    width: 12px;
    height: 12px;
    flex-shrink: 0;
}

/* Button Placeholder (when URL not configured) */
.signalkit-button-placeholder {
    display: inline-block;
    padding: 10px 20px;
    background: #f0f0f0;
    color: #999;
    border-radius: 24px;
    font-size: var(--signalkit-button-size);
    font-weight: 500;
    border: 1px dashed #ccc;
}

/* ========================================
   CLOSE/DISMISS BUTTON - FIXED
======================================== */

.signalkit-close {
    position: absolute;
    top: 8px;
    right: 8px;
    z-index: 10; /* Above banner content */
    
    /* Size - Touch-friendly */
    width: 28px;
    height: 28px;
    min-width: 28px;
    min-height: 28px;
    padding: 0;
    
    /* Visual Styling */
    background: transparent;
    border: none;
    border-radius: 50%;
    color: var(--signalkit-text);
    opacity: 0.6;
    
    /* Layout */
    display: flex;
    align-items: center;
    justify-content: center;
    
    /* Interaction */
    cursor: pointer;
    transition: all 0.2s ease;
    touch-action: manipulation;
    -webkit-tap-highlight-color: transparent;
}

.signalkit-close:hover {
    background: rgba(0, 0, 0, 0.1);
    opacity: 1;
    transform: rotate(90deg);
}

.signalkit-close:active {
    transform: rotate(90deg) scale(0.95);
}

.signalkit-close:focus-visible {
    outline: 2px solid var(--signalkit-primary);
    outline-offset: 2px;
}

.signalkit-close svg {
    width: 16px;
    height: 16px;
    stroke: currentColor;
    stroke-width: 2;
    fill: none;
}

/* ========================================
   ANIMATION VARIANTS
   Different entrance animations
======================================== */

/* Slide In (default) */
.signalkit-animation-slide_in {
    /* Uses base transform: translateY(20px) */
}

/* Fade In */
.signalkit-animation-fade_in {
    opacity: 0;
    transform: scale(0.95);
}

.signalkit-animation-fade_in.active {
    opacity: 1;
    transform: scale(1);
}

/* Bounce Animation */
@keyframes signalkitBounce {
    0% {
        opacity: 0;
        transform: scale(0.3) translateY(30px);
    }
    50% {
        transform: scale(1.05);
    }
    70% {
        transform: scale(0.9);
    }
    100% {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}

.signalkit-animation-bounce {
    opacity: 0;
}

.signalkit-animation-bounce.active {
    animation: signalkitBounce 0.5s cubic-bezier(0.68, -0.55, 0.265, 1.55) forwards;
}

/* ========================================
   MOBILE RESPONSIVE DESIGN - FIXED
   Full-width banners on mobile with JS-based stacking
======================================== */

@media (max-width: 768px) {
    /* FIXED: Mobile banners - full width, no margin */
    .signalkit-banner,
    .signalkit-device-mobile .signalkit-banner,
    .signalkit-device-mobile {
        left: 0 !important;
        right: 0 !important;
        width: 100% !important;
        max-width: none !important;
        border-radius: 0 !important;
        padding: 16px;
    }
    
    /* Mobile Position: Bottom (default) - JS will handle stacking offsets */
    .signalkit-position-mobile-bottom,
    .signalkit-device-mobile.signalkit-position-mobile-bottom,
    .signalkit-device-mobile {
        bottom: 0 !important;
        top: auto !important;
    }
    
    /* Mobile Position: Top - JS will handle stacking offsets */
    .signalkit-position-mobile-top,
    .signalkit-device-mobile.signalkit-position-mobile-top {
        top: 0 !important;
        bottom: auto !important;
    }
    
    /* FIXED: Mobile Content Layout - Proper grid structure */
    .signalkit-banner-content {
        grid-template-columns: 48px 1fr;
        grid-template-rows: auto auto;
        grid-template-areas:
            "icon text"
            "actions actions";
        gap: 12px;
        align-items: start;
        padding-right: 44px; /* FIXED: More space for larger close button on mobile */
    }
    
    /* FIXED: Icon stays at proper size */
    .signalkit-icon {
        width: 48px;
        height: 48px;
        align-self: start;
    }
    
    /* FIXED: Text wraps properly next to icon */
    .signalkit-text {
        min-width: 0;
        word-wrap: break-word;
        overflow-wrap: break-word;
        padding-right: 0;
    }
    
    /* FIXED: Actions span full width below icon+text */
    .signalkit-actions {
        grid-column: 1 / -1; /* Span both columns */
        align-items: stretch;
        margin-top: 4px;
        width: 100%;
    }
    
    /* FIXED: Button takes full width on mobile */
    .signalkit-button {
        width: 100%;
        justify-content: center;
        padding: 12px 20px; /* Bigger touch target */
        white-space: normal; /* FIXED: Allow text wrapping on very small screens */
        min-height: 44px; /* Touch-friendly minimum */
    }
    
    /* FIXED: Educational link centered on mobile */
    .signalkit-educational-link {
        justify-content: center;
        width: 100%;
        padding: 8px;
        min-height: 32px;
    }
    
    /* FIXED: Close button - larger and properly positioned on mobile */
    .signalkit-close {
        top: 12px;
        right: 12px;
        width: 32px;
        height: 32px;
        min-width: 32px;
        min-height: 32px;
        background: rgba(0, 0, 0, 0.05); /* Slightly visible by default on mobile */
    }
    
    .signalkit-close:hover {
        background: rgba(0, 0, 0, 0.15);
    }
    
    /* Mobile Banner Stacking - Z-index only (positioning handled by JS) */
    .signalkit-stack-order-1 {
        z-index: 9998;
    }
    
    .signalkit-stack-order-2 {
        z-index: 9999;
    }
}

/* Extra small screens - additional fixes */
@media (max-width: 360px) {
    .signalkit-banner {
        padding: 12px;
    }
    
    .signalkit-banner-content {
        padding-right: 40px;
    }
    
    .signalkit-headline {
        font-size: calc(var(--signalkit-headline-size) * 0.9);
    }
    
    .signalkit-description {
        font-size: calc(var(--signalkit-description-size) * 0.9);
    }
    
    .signalkit-button {
        padding: 10px 16px;
        font-size: calc(var(--signalkit-button-size) * 0.9);
    }
}

/* ========================================
   ACCESSIBILITY ENHANCEMENTS
   WCAG 2.1 AA compliance
======================================== */

/* Enhanced Focus Indicators */
.signalkit-banner:focus-within {
    outline: 3px solid rgba(66, 133, 244, 0.4);
    outline-offset: 2px;
}

/* Screen Reader Only Text */
.signalkit-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;
}

/* High Contrast Mode Support */
@media (prefers-contrast: high) {
    .signalkit-banner {
        border: 2px solid currentColor;
        box-shadow: none;
    }
    
    .signalkit-button {
        border: 2px solid currentColor;
    }
    
    .signalkit-close {
        border: 2px solid currentColor;
        background: rgba(0, 0, 0, 0.1);
    }
    
    .signalkit-icon {
        border: 1px solid currentColor;
    }
}

/* Reduced Motion Preference */
@media (prefers-reduced-motion: reduce) {
    .signalkit-banner,
    .signalkit-button,
    .signalkit-close,
    .signalkit-icon,
    .signalkit-educational-link {
        transition: none !important;
        animation: none !important;
    }
    
    .signalkit-banner {
        opacity: 1;
        transform: none;
    }
    
    .signalkit-banner.active {
        opacity: 1;
        transform: none;
    }
    
    .signalkit-banner:hover .signalkit-icon {
        transform: none;
    }
    
    .signalkit-close:hover {
        transform: none;
    }
}

/* Dark Mode Support */
@media (prefers-color-scheme: dark) {
    .signalkit-banner {
        background: #1f1f1f;
        color: #e8eaed;
        box-shadow: 0 4px 12px rgba(0, 0, 0, 0.5);
        border-left-color: var(--signalkit-primary);
    }
    
    .signalkit-headline {
        color: #e8eaed;
    }
    
    .signalkit-description {
        color: #9aa0a6;
    }
    
    .signalkit-close {
        background: rgba(255, 255, 255, 0.1);
        color: #e8eaed;
    }
    
    .signalkit-close:hover {
        background: rgba(255, 255, 255, 0.2);
    }
    
    .signalkit-educational-link {
        color: #9aa0a6;
    }
    
    .signalkit-button-placeholder {
        background: #2d2d2d;
        color: #666;
        border-color: #444;
    }
}

/* ========================================
   UTILITY CLASSES & COMPATIBILITY
======================================== */

/* Print Styles - Hide banners when printing */
@media print {
    .signalkit-banner {
        display: none !important;
    }
}

/* RTL (Right-to-Left) Language Support */
[dir="rtl"] .signalkit-banner {
    border-left: none;
    border-right: 4px solid var(--signalkit-primary);
}

[dir="rtl"] .signalkit-position-bottom_left {
    left: auto;
    right: 20px;
}

[dir="rtl"] .signalkit-position-bottom_right {
    right: auto;
    left: 20px;
}

[dir="rtl"] .signalkit-position-top_left {
    left: auto;
    right: 20px;
}

[dir="rtl"] .signalkit-position-top_right {
    right: auto;
    left: 20px;
}

[dir="rtl"] .signalkit-close {
    right: auto;
    left: 8px;
}

[dir="rtl"] .signalkit-actions {
    align-items: flex-start;
}

[dir="rtl"] .signalkit-banner-content {
    padding-right: 0;
    padding-left: 40px;
}

@media (max-width: 768px) {
    [dir="rtl"] .signalkit-banner-content {
        padding-left: 44px;
    }
    
    [dir="rtl"] .signalkit-close {
        left: 12px;
        right: auto;
    }
}

/* Box Sizing Reset - Prevent conflicts */
.signalkit-banner,
.signalkit-banner *,
.signalkit-banner *::before,
.signalkit-banner *::after {
    box-sizing: border-box;
}

/* Reset any potential theme interference */
.signalkit-banner h1,
.signalkit-banner h2,
.signalkit-banner h3,
.signalkit-banner h4,
.signalkit-banner h5,
.signalkit-banner h6,
.signalkit-banner p {
    margin: 0;
    padding: 0;
    font-weight: inherit;
    font-size: inherit;
    line-height: inherit;
}

.signalkit-banner a {
    color: inherit;
    text-decoration: none;
}

.signalkit-banner button {
    font-family: inherit;
    font-size: 100%;
    line-height: inherit;
    margin: 0;
}

/* Hide in WordPress Editor/Gutenberg */
.block-editor .signalkit-banner,
.editor-styles-wrapper .signalkit-banner,
.wp-block-editor .signalkit-banner,
.is-root-container .signalkit-banner {
    display: none !important;
}

/* Safari-specific Fixes */
@supports (-webkit-backdrop-filter: blur(10px)) {
    .signalkit-close {
        -webkit-backdrop-filter: blur(10px);
        backdrop-filter: blur(10px);
    }
}

/* ========================================
   PREVIEW MODE SPECIFIC STYLES
   Force visibility in admin preview
======================================== */

.signalkit-preview-viewport .signalkit-banner,
.signalkit-preview-container .signalkit-banner {
    position: relative !important;
    opacity: 1 !important;
    transform: none !important;
    margin: 20px auto;
    left: auto !important;
    right: auto !important;
    top: auto !important;
    bottom: auto !important;
}

.signalkit-preview-viewport .signalkit-banner.active,
.signalkit-preview-container .signalkit-banner.active {
    opacity: 1 !important;
    transform: none !important;
}

/* Preview mobile mode */
.signalkit-preview-viewport[data-device="mobile"] .signalkit-banner {
    max-width: 100% !important;
    width: 100% !important;
}

/* ========================================
   LOADING & ERROR STATES
======================================== */

.signalkit-banner.loading {
    pointer-events: none;
    opacity: 0.6;
    cursor: wait;
}

.signalkit-banner.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 20px;
    height: 20px;
    margin: -10px 0 0 -10px;
    border: 2px solid var(--signalkit-primary);
    border-radius: 50%;
    border-top-color: transparent;
    animation: signalkitSpin 0.6s linear infinite;
}

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

.signalkit-banner.error {
    border-left-color: #dc3545;
    background: #fff5f5;
}

.signalkit-banner.error .signalkit-headline {
    color: #dc3545;
}

/* ========================================
   CUSTOM DEVICE CLASSES
   For preview mode device switching
======================================== */

.signalkit-device-desktop {
    /* Desktop-specific overrides if needed */
}

.signalkit-device-mobile {
    /* Mobile preview overrides */
    max-width: 100% !important;
    width: 100% !important;
}

/* ========================================
   Z-INDEX MANAGEMENT
   Ensure proper stacking context
======================================== */

.signalkit-banner {
    isolation: isolate; /* Create new stacking context */
}

/* ========================================
   PERFORMANCE OPTIMIZATIONS
======================================== */

/* Use GPU acceleration for animations */
.signalkit-banner,
.signalkit-button,
.signalkit-close,
.signalkit-icon {
    transform: translateZ(0);
}

/* Reduce repaints */
.signalkit-banner.active {
    will-change: auto; /* Remove will-change after animation */
}

/* Optimize repaint areas */
.signalkit-banner-content {
    contain: layout style paint;
}

/* ========================================
   BROWSER-SPECIFIC FIXES
======================================== */

/* Firefox focus outline fix */
@-moz-document url-prefix() {
    .signalkit-button:focus-visible {
        outline-offset: 1px;
    }
}

/* Edge legacy support */
@supports (-ms-ime-align: auto) {
    .signalkit-banner-content {
        display: -ms-grid;
        -ms-grid-columns: auto 1fr;
        -ms-grid-rows: auto auto;
    }
    
    .signalkit-icon {
        -ms-grid-column: 1;
        -ms-grid-row: 1;
        -ms-grid-row-span: 2;
    }
    
    .signalkit-text {
        -ms-grid-column: 2;
        -ms-grid-row: 1;
    }
    
    .signalkit-actions {
        -ms-grid-column: 2;
        -ms-grid-row: 2;
    }
}

/* iOS Safari fixes */
@supports (-webkit-touch-callout: none) {
    .signalkit-button,
    .signalkit-close {
        -webkit-tap-highlight-color: transparent;
    }
    
    .signalkit-banner {
        -webkit-transform: translateZ(0);
    }
}

/* ========================================
   CONTENT SECURITY FIXES
======================================== */

/* Prevent clickjacking */
.signalkit-banner {
    pointer-events: auto;
}

.signalkit-banner.disabled {
    pointer-events: none;
    opacity: 0.5;
}

/* ========================================
   TOOLTIP & HOVER STATES
======================================== */

.signalkit-button[title]:hover::after,
.signalkit-close[title]:hover::after {
    content: attr(title);
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    padding: 4px 8px;
    background: rgba(0, 0, 0, 0.8);
    color: white;
    font-size: 12px;
    white-space: nowrap;
    border-radius: 4px;
    margin-bottom: 4px;
    pointer-events: none;
    z-index: 1;
}

/* ========================================
   END OF STYLESHEET
======================================== */