/*
 * AI Tools Catalog Premium Stylesheet
 * Rebuilt with HSL variables, Glassmorphism, CSS Grid, and native top-layer starting-style animations.
 */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Outfit:wght@400;500;600;700;800&display=swap');

:root {
    /* Color System */
    --bg-dark: hsl(240, 30%, 6%);
    --bg-card: hsla(240, 25%, 10%, 0.65);
    --bg-card-hover: hsla(240, 25%, 15%, 0.85);
    --border-color: hsla(240, 15%, 80%, 0.08);
    --border-color-hover: hsla(262, 80%, 60%, 0.25);
    
    --text-primary: hsl(0, 0%, 96%);
    --text-secondary: hsl(240, 10%, 75%);
    --text-muted: hsl(240, 8%, 55%);
    
    --accent-primary: hsl(262, 85%, 62%);
    --accent-secondary: hsl(190, 90%, 50%);
    --accent-glow: hsla(262, 85%, 62%, 0.35);
    
    --success: hsl(145, 80%, 45%);
    --warning: hsl(45, 90%, 50%);
    --danger: hsl(355, 85%, 55%);
    
    /* Layout Tokens */
    --container-max: 1280px;
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Inter', sans-serif;
    --transition-smooth: all 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Base resets & styles */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    background-color: var(--bg-dark);
    background-image: 
        radial-gradient(at 0% 0%, hsla(253, 52%, 18%, 0.3) 0px, transparent 50%),
        radial-gradient(at 100% 0%, hsla(190, 52%, 18%, 0.2) 0px, transparent 50%),
        radial-gradient(at 50% 100%, hsla(262, 52%, 15%, 0.25) 0px, transparent 50%);
    background-attachment: fixed;
    color: var(--text-primary);
    font-family: var(--font-body);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    min-height: 100vh;
    padding-bottom: 80px;
}

/* Layout Wrapper */
.app-container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 24px;
}

/* Header Section */
header.app-header {
    padding: 48px 0 24px;
    text-align: center;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 40px;
}

.header-brand h1 {
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: 2.8rem;
    letter-spacing: -0.03em;
    background: linear-gradient(135deg, var(--text-primary) 30%, var(--accent-secondary) 70%, var(--accent-primary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 12px;
}

.header-brand p {
    color: var(--text-secondary);
    font-size: 1.15rem;
    font-weight: 400;
    max-width: 600px;
    margin: 0 auto 20px;
}

.nav-links {
    display: flex;
    justify-content: center;
    gap: 16px;
    margin-top: 16px;
}

.nav-btn {
    background: hsla(0, 0%, 100%, 0.04);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    padding: 8px 16px;
    font-size: 0.9rem;
    font-weight: 500;
    text-decoration: none;
    cursor: pointer;
    transition: var(--transition-smooth);
}

.nav-btn:hover {
    background: hsla(262, 85%, 62%, 0.1);
    border-color: var(--accent-primary);
    box-shadow: 0 0 15px var(--accent-glow);
    transform: translateY(-2px);
}

/* Search and Filters Hub */
.search-filter-section {
    background: var(--bg-card);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 24px;
    margin-bottom: 40px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.search-wrapper {
    display: flex;
    gap: 12px;
    margin-bottom: 20px;
}

.search-input-container {
    position: relative;
    flex-grow: 1;
}

.search-input-container::before {
    content: "🔍";
    position: absolute;
    left: 16px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 1rem;
    opacity: 0.6;
}

.search-input {
    width: 100%;
    background: hsla(0, 0%, 0%, 0.25);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 1rem;
    padding: 14px 16px 14px 48px;
    outline: none;
    transition: var(--transition-smooth);
}

.search-input:focus {
    border-color: var(--accent-primary);
    box-shadow: 0 0 10px var(--accent-glow);
    background: hsla(0, 0%, 0%, 0.4);
}

.category-dropdown {
    background: hsla(0, 0%, 0%, 0.25);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 1rem;
    padding: 0 16px;
    height: 52px;
    outline: none;
    min-width: 250px;
    cursor: pointer;
    transition: var(--transition-smooth);
}

.category-dropdown:hover, .category-dropdown:focus {
    border-color: var(--accent-primary);
    box-shadow: 0 0 10px var(--accent-glow);
}

/* Quick Filter Tags */
.quick-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    align-items: center;
}

.tag-label {
    font-size: 0.85rem;
    color: var(--text-muted);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-right: 8px;
}

.filter-tag {
    background: hsla(0, 0%, 100%, 0.03);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    color: var(--text-secondary);
    padding: 6px 16px;
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition-smooth);
}

.filter-tag:hover {
    background: hsla(262, 85%, 62%, 0.06);
    border-color: hsla(262, 85%, 62%, 0.4);
    color: var(--text-primary);
}

.filter-tag.active {
    background: var(--accent-primary);
    border-color: var(--accent-primary);
    color: var(--text-primary);
    box-shadow: 0 0 12px var(--accent-glow);
}

/* Split-Screen Workspace (Iframe Sandbox & Details Panel) */
.workspace-split {
    display: grid;
    grid-template-columns: 1fr;
    gap: 30px;
    margin-bottom: 40px;
}

@media(min-width: 1024px) {
    .workspace-split.active {
        grid-template-columns: 380px 1fr;
    }
}

/* In-App Testing Terminal */
.iframe-testing-terminal {
    display: none;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.4);
}

.terminal-header {
    background: hsla(0, 0%, 0%, 0.3);
    border-bottom: 1px solid var(--border-color);
    padding: 12px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.terminal-title {
    display: flex;
    align-items: center;
    gap: 10px;
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 1rem;
    color: var(--text-primary);
}

.terminal-badge {
    background: hsla(145, 80%, 45%, 0.15);
    border: 1px solid var(--success);
    color: var(--success);
    border-radius: 4px;
    padding: 2px 8px;
    font-size: 0.75rem;
    font-weight: 600;
}

.terminal-controls {
    display: flex;
    gap: 8px;
}

.control-btn {
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 1.1rem;
    cursor: pointer;
    padding: 4px;
    border-radius: 4px;
    transition: var(--transition-smooth);
}

.control-btn:hover {
    color: var(--text-primary);
    background: hsla(0, 0%, 100%, 0.05);
}

.control-btn.close-btn:hover {
    color: var(--danger);
    background: hsla(355, 85%, 55%, 0.1);
}

.iframe-sandbox-wrapper {
    height: 600px;
    background: #111;
    position: relative;
}

.iframe-sandbox-wrapper iframe {
    width: 100%;
    height: 100%;
    border: none;
}

/* Tools Grid */
.tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 24px;
}

/* Glassmorphic Tool Card */
.tool-card {
    background: var(--bg-card);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 24px;
    display: flex;
    flex-direction: column;
    height: 100%;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
    transition: var(--transition-smooth);
}

.tool-card:hover {
    background: var(--bg-card-hover);
    border-color: var(--border-color-hover);
    box-shadow: 0 12px 36px hsla(262, 85%, 62%, 0.12);
    transform: translateY(-4px);
}

.card-top {
    display: flex;
    gap: 16px;
    align-items: flex-start;
    margin-bottom: 16px;
}

.tool-visual-container {
    width: 52px;
    height: 52px;
    border-radius: var(--radius-md);
    background: hsla(0, 0%, 100%, 0.03);
    border: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    flex-shrink: 0;
    overflow: hidden;
}

.tool-visual-container img {
    width: 80%;
    height: 80%;
    object-fit: contain;
}

.tool-meta {
    flex-grow: 1;
}

.tool-name-heading {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.tool-category-badge {
    display: inline-block;
    background: hsla(240, 10%, 80%, 0.06);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    padding: 2px 8px;
    font-size: 0.75rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.tool-desc-text {
    font-size: 0.92rem;
    color: var(--text-secondary);
    margin-bottom: 20px;
    flex-grow: 1;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* Tool Rating Stars */
.tool-rating-row {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 20px;
    font-size: 0.88rem;
    color: var(--text-secondary);
}

.stars-rating {
    color: var(--warning);
    font-weight: 600;
    display: flex;
    gap: 2px;
}

.expert-rating-tag {
    font-size: 0.75rem;
    color: var(--text-muted);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    background: hsla(45, 90%, 50%, 0.1);
    border: 1px solid hsla(45, 90%, 50%, 0.3);
    padding: 1px 6px;
    border-radius: 3px;
}

/* Card Actions */
.card-actions-wrapper {
    display: flex;
    gap: 10px;
    margin-top: auto;
}

.card-btn {
    flex-grow: 1;
    border-radius: var(--radius-md);
    padding: 10px 14px;
    font-size: 0.88rem;
    font-weight: 600;
    text-align: center;
    cursor: pointer;
    transition: var(--transition-smooth);
    border: 1px solid transparent;
}

.card-btn.primary {
    background: var(--accent-primary);
    color: var(--text-primary);
    box-shadow: 0 4px 12px var(--accent-glow);
}

.card-btn.primary:hover {
    background: hsl(262, 85%, 68%);
    box-shadow: 0 6px 16px hsla(262, 85%, 62%, 0.5);
    transform: translateY(-1px);
}

.card-btn.secondary {
    background: hsla(0, 0%, 100%, 0.04);
    border-color: var(--border-color);
    color: var(--text-primary);
}

.card-btn.secondary:hover {
    background: hsla(0, 0%, 100%, 0.08);
    border-color: hsla(262, 85%, 62%, 0.3);
}

.card-btn.testing-btn {
    background: hsla(190, 90%, 50%, 0.08);
    border-color: hsla(190, 90%, 50%, 0.25);
    color: var(--accent-secondary);
}

.card-btn.testing-btn:hover {
    background: var(--accent-secondary);
    color: hsl(240, 30%, 6%);
    box-shadow: 0 0 15px hsla(190, 90%, 50%, 0.4);
    transform: translateY(-1px);
}

/* Rating Dialogue overlay (Native popover & dialog styling) */
dialog.rating-modal {
    margin: auto;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    background: hsl(240, 25%, 10%);
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.6);
    color: var(--text-primary);
    padding: 32px;
    max-width: 460px;
    width: 90%;
    outline: none;
}

dialog::backdrop {
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}

/* starting-style for smooth animations into top layer */
@starting-style {
    dialog.rating-modal {
        opacity: 0;
        transform: scale(0.92) translateY(20px);
    }
    dialog::backdrop {
        background: rgba(0, 0, 0, 0);
        backdrop-filter: blur(0px);
        -webkit-backdrop-filter: blur(0px);
    }
}

/* Transition values */
dialog.rating-modal, dialog::backdrop {
    transition: 
        opacity 0.3s ease, 
        transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1), 
        overlay 0.3s allow-discrete, 
        display 0.3s allow-discrete;
}

.modal-header-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
}

.modal-title {
    font-family: var(--font-heading);
    font-size: 1.4rem;
    font-weight: 700;
}

.close-modal-x {
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 1.5rem;
    cursor: pointer;
    line-height: 1;
}

.close-modal-x:hover {
    color: var(--text-primary);
}

/* Modern Form styles */
.rating-form-group {
    margin-bottom: 20px;
}

.rating-form-label {
    display: block;
    font-size: 0.9rem;
    color: var(--text-secondary);
    font-weight: 600;
    margin-bottom: 8px;
}

/* Interactive Star selector */
.interactive-stars {
    display: flex;
    gap: 8px;
    font-size: 2rem;
    cursor: pointer;
    margin-bottom: 4px;
}

.interactive-star {
    color: var(--text-muted);
    transition: var(--transition-smooth);
}

.interactive-star.active, .interactive-star:hover {
    color: var(--warning);
    transform: scale(1.15);
}

.rating-form-input {
    width: 100%;
    background: hsla(0, 0%, 0%, 0.3);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    padding: 12px;
    outline: none;
    font-family: var(--font-body);
    font-size: 0.95rem;
    transition: var(--transition-smooth);
}

.rating-form-input:focus {
    border-color: var(--accent-primary);
}

textarea.rating-form-input {
    resize: vertical;
    min-height: 100px;
}

.modal-submit-btn {
    width: 100%;
    background: var(--accent-primary);
    border: none;
    border-radius: var(--radius-md);
    color: var(--text-primary);
    padding: 14px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    box-shadow: 0 4px 15px var(--accent-glow);
    transition: var(--transition-smooth);
}

.modal-submit-btn:hover {
    background: hsl(262, 85%, 68%);
    box-shadow: 0 6px 20px hsla(262, 85%, 62%, 0.5);
    transform: translateY(-1px);
}

/* Reviews List in modal */
.reviews-scroller {
    margin-top: 24px;
    max-height: 200px;
    overflow-y: auto;
    border-top: 1px solid var(--border-color);
    padding-top: 16px;
}

.review-item {
    background: hsla(0, 0%, 100%, 0.02);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 12px;
    margin-bottom: 12px;
}

.review-meta {
    display: flex;
    justify-content: space-between;
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-bottom: 6px;
}

.review-comment {
    font-size: 0.88rem;
    color: var(--text-secondary);
}

/* Empty results indicator */
.no-results {
    grid-column: 1 / -1;
    text-align: center;
    padding: 60px 20px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    color: var(--text-secondary);
}

.no-results h3 {
    font-family: var(--font-heading);
    font-size: 1.4rem;
    margin-bottom: 8px;
}

.no-results p {
    font-size: 0.95rem;
    color: var(--text-muted);
}