/* ==========================================
   KI-Tools Verzeichnis - Modern Dark Theme
   ========================================== */

:root {
    --ki-bg-primary: #0a0a0a;
    --ki-bg-secondary: #141414;
    --ki-bg-tertiary: #1a1a1a;
    --ki-bg-card: #1f1f1f;
    --ki-border: #2a2a2a;
    --ki-border-hover: #3a3a3a;
    
    --ki-text-primary: #ffffff;
    --ki-text-secondary: #a0a0a0;
    --ki-text-tertiary: #707070;
    
    --ki-accent: #6366f1;
    --ki-accent-hover: #4f46e5;
    --ki-accent-light: rgba(99, 102, 241, 0.1);
    
    --ki-success: #10b981;
    --ki-warning: #f59e0b;
    --ki-info: #3b82f6;
    --ki-danger: #ef4444;
    
    --ki-radius: 12px;
    --ki-radius-sm: 8px;
    --ki-radius-lg: 16px;
    
    --ki-shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    --ki-shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
    --ki-shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
    
    --ki-transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ==========================================
   Base Styles
   ========================================== */

.ki-tools-homepage,
.ki-archive,
.ki-category-archive,
.ki-single-tool {
    background: var(--ki-bg-primary);
    color: inherit;
    min-height: 100vh;
    padding: 60px 20px;
    font-family: inherit;
    font-size: inherit;
    line-height: inherit;
}

.ki-single-container,
.ki-archive-container,
.ki-category-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ==========================================
   Hero Section
   ========================================== */

.ki-hero {
    text-align: center;
    padding: 80px 20px 60px;
    margin-bottom: 80px;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.05) 0%, rgba(0, 0, 0, 0) 100%);
    border-radius: var(--ki-radius-lg);
}

.ki-hero-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 800;
    margin: 0 0 20px;
    background: linear-gradient(135deg, #fff 0%, #a0a0a0 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1.2;
}

.ki-hero-subtitle {
    font-size: clamp(1.1rem, 2vw, 1.3rem);
    color: var(--ki-text-secondary);
    max-width: 800px;
    margin: 0 auto 50px;
    line-height: 1.6;
}

/* ==========================================
   Search Container
   ========================================== */

.ki-search-container {
    max-width: 700px;
    margin: 0 auto;
}

.ki-search-wrapper {
    position: relative;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
}

.ki-search-icon {
    display: none;
}

.ki-search-input {
    width: 100%;
    padding: 18px 20px;
    background: var(--ki-bg-card);
    border: 2px solid var(--ki-border);
    border-radius: var(--ki-radius);
    color: var(--ki-text-primary);
    font-size: 1.1rem;
    transition: var(--ki-transition);
}

.ki-search-input:focus {
    outline: none;
    border-color: var(--ki-accent);
    box-shadow: 0 0 0 4px var(--ki-accent-light);
}

.ki-search-filters {
    display: flex;
    gap: 15px;
    justify-content: center;
}

.ki-category-select {
    padding: 12px 20px;
    background: var(--ki-bg-card);
    border: 2px solid var(--ki-border);
    border-radius: var(--ki-radius-sm);
    color: var(--ki-text-primary);
    font-size: 1rem;
    cursor: pointer;
    transition: var(--ki-transition);
}

.ki-category-select:hover,
.ki-category-select:focus {
    border-color: var(--ki-border-hover);
    outline: none;
}

/* Search Results */
.ki-search-results {
    margin-top: 40px;
    background: var(--ki-bg-secondary);
    border-radius: var(--ki-radius-lg);
    padding: 30px;
}

.ki-search-results-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
}

.results-count {
    font-size: 1.1rem;
    color: var(--ki-text-secondary);
}

.close-search {
    background: transparent;
    border: none;
    color: var(--ki-text-secondary);
    cursor: pointer;
    padding: 8px;
    border-radius: 50%;
    transition: var(--ki-transition);
}

.close-search:hover {
    background: var(--ki-bg-tertiary);
    color: var(--ki-text-primary);
}

.ki-search-results-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 24px;
}

/* ==========================================
   Tools Grid
   ========================================== */

.ki-tools-section {
    margin-bottom: 80px;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin: 0 0 40px;
    text-align: center;
}

.ki-tools-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    margin-bottom: 40px;
}

/* ==========================================
   Tool Card
   ========================================== */

.ki-tool-card {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: var(--ki-radius);
    overflow: hidden;
    transition: var(--ki-transition);
    display: flex;
    flex-direction: column;
    text-decoration: none;
    color: inherit;
}

.ki-tool-card:hover {
    border-color: var(--ki-accent);
    transform: translateY(-6px);
    box-shadow: var(--ki-shadow-lg);
}

.ki-tool-card:hover .tool-card-title {
    color: var(--ki-accent);
}

.ki-tool-card:hover .tool-external-icon {
    opacity: 1;
    transform: translateX(2px) translateY(-2px);
}

.tool-card-image {
    position: relative;
    width: 100%;
    height: 80px;
    background: var(--ki-bg-tertiary);
    overflow: hidden;
    display: flex;
    align-items: center;
    padding: 0 16px;
}

.tool-card-image .tool-card-title {
    font-size: 1.3rem;
    margin: 0;
    font-weight: 600;
    color: var(--ki-text-primary);
    flex: 1;
    padding-right: 80px;
}

.tool-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--ki-transition);
}

.ki-tool-card:hover .tool-card-image img {
    transform: scale(1.05);
}

.tool-card-placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--ki-text-tertiary);
}

.tool-category-badge {
    position: absolute;
    top: 8px;
    right: 8px;
    padding: 4px 12px;
    border-radius: 999px;
    font-size: 0.7rem;
    font-weight: 500;
    letter-spacing: 0.01em;
    background: rgba(255, 255, 255, 0.04);
    color: rgba(229, 231, 235, 0.92);
    border: 1px solid rgba(255, 255, 255, 0.16);
    backdrop-filter: blur(6px);
}

.tool-card-pricing {
    margin: 8px 0;
}

.tool-pricing-tag {
    display: inline-block;
    padding: 4px 10px;
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: capitalize;
}

.tool-pricing-tag.kostenlos {
    background: rgba(16, 185, 129, 0.15);
    color: var(--ki-success);
}

.tool-pricing-tag.freemium {
    background: rgba(59, 130, 246, 0.15);
    color: var(--ki-info);
}

.tool-pricing-tag.kostenpflichtig {
    background: rgba(245, 158, 11, 0.15);
    color: var(--ki-warning);
}

.tool-pricing-tag.open-source {
    background: rgba(99, 102, 241, 0.15);
    color: var(--ki-accent);
}

.tool-card-content {
    padding: 20px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.tool-card-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 12px;
}

.tool-card-title {
    font-size: inherit;
    margin: 0;
    font-weight: inherit;
    color: inherit;
    transition: var(--ki-transition);
    flex: 1;
    font-family: inherit;
}

.tool-external-icon {
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    color: var(--ki-text-tertiary);
    opacity: 0.5;
    transition: var(--ki-transition);
    margin-left: 8px;
    margin-top: -4px;
}

.tool-card-excerpt {
    color: inherit;
    line-height: inherit;
    margin: 0;
    flex: 1;
    font-size: inherit;
    font-family: inherit;
}

/* ==========================================
   Load More Button
   ========================================== */

.ki-tools-load-more {
    text-align: center;
    margin-top: 60px;
}

.btn-load-more {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    padding: 16px 32px;
    background: var(--ki-accent);
    color: white;
    text-decoration: none;
    border-radius: var(--ki-radius);
    font-weight: 600;
    font-size: 1.1rem;
    transition: var(--ki-transition);
}

.btn-load-more:hover {
    background: var(--ki-accent-hover);
    transform: translateY(-2px);
    box-shadow: var(--ki-shadow-md);
}

/* ==========================================
   Show All Tools Button & Hidden Tools
   ========================================== */

.ki-tool-hidden {
    display: none;
}

.btn-load-more {
    cursor: pointer;
    border: none;
}

/* ==========================================
   FAQ Section
   ========================================== */

.ki-faq-section {
    margin: 80px auto 60px;
    text-align: center;
}

.ki-faq-section h2 {
    font-size: 2rem;
    font-weight: 700;
    margin: 0 0 40px;
}

.ki-faq-container {
    max-width: 800px !important;
    margin: 0 auto;
    padding: 40px;
    background: transparent;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 20px;
}

.ki-faq-item {
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    padding: 20px 0;
}

.ki-faq-item:last-child {
    border-bottom: none;
}

.ki-faq-question {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: transparent;
    border: none;
    padding: 0;
    cursor: pointer;
    text-align: left;
    font-size: 1.1rem;
    font-weight: 600;
    color: inherit;
    transition: var(--ki-transition);
}

.ki-faq-question:hover {
    color: var(--ki-accent);
}

.ki-faq-icon {
    flex-shrink: 0;
    transition: transform 0.3s ease;
}

.ki-faq-item.active .ki-faq-icon {
    transform: rotate(180deg);
}

.ki-faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease, padding 0.3s ease;
    padding: 0;
}

.ki-faq-item.active .ki-faq-answer {
    max-height: 500px;
    padding-top: 16px;
}

.ki-faq-answer p {
    margin: 0;
    line-height: 1.8;
    color: var(--ki-text-secondary);
}

/* ==========================================
   Responsive Design
   ========================================== */

@media (max-width: 1400px) {
    .ki-tools-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 1200px) {
    .ki-tools-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .ki-tools-grid {
        grid-template-columns: 1fr;
    }
    
    .ki-hero {
        padding: 60px 20px 40px;
        margin-bottom: 60px;
    }
    
    .ki-hero-title {
        font-size: 2rem;
    }
    
    .ki-hero-subtitle {
        font-size: 1rem;
    }
    
    .ki-search-filters {
        flex-direction: column;
    }
    
    .ki-category-select {
        width: 100%;
    }
}

.no-tools {
    text-align: center;
    color: var(--ki-text-secondary);
    font-size: 1.2rem;
    padding: 60px 20px;
}

/* ==========================================
   Submission Form
   ========================================== */

.ki-tools-submission-form {
    max-width: 700px;
    margin: 60px auto;
    background: var(--ki-bg-card);
    border: 1px solid var(--ki-border);
    border-radius: var(--ki-radius-lg);
    padding: 40px;
}

.ki-tools-submission-form h2 {
    font-size: 2.5rem;
    margin: 0 0 12px;
    text-align: center;
}

.ki-tools-submission-form > p {
    text-align: center;
    color: var(--ki-text-secondary);
    margin: 0 0 40px;
    font-size: 1.1rem;
}

.ki-submit-form {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-group label {
    font-size: 1rem;
    font-weight: 500;
    color: var(--ki-text-primary);
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: 14px 18px;
    background: var(--ki-bg-tertiary);
    border: 2px solid var(--ki-border);
    border-radius: var(--ki-radius-sm);
    color: var(--ki-text-primary);
    font-size: 1rem;
    font-family: inherit;
    transition: var(--ki-transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--ki-accent);
    box-shadow: 0 0 0 3px var(--ki-accent-light);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--ki-text-tertiary);
}

.form-group select {
    cursor: pointer;
}

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

.checkbox-label {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    cursor: pointer;
    font-size: 0.95rem;
}

.checkbox-label input[type="checkbox"] {
    margin-top: 2px;
    cursor: pointer;
    width: 18px;
    height: 18px;
}

.checkbox-label a {
    color: var(--ki-accent);
    text-decoration: underline;
}

.checkbox-label a:hover {
    color: var(--ki-accent-hover);
}

.form-message {
    padding: 16px;
    border-radius: var(--ki-radius-sm);
    font-size: 0.95rem;
    display: none;
    margin-top: 10px;
}

.form-message.success {
    display: block;
    background: rgba(16, 185, 129, 0.15);
    border: 1px solid var(--ki-success);
    color: var(--ki-success);
}

.form-message.error {
    display: block;
    background: rgba(239, 68, 68, 0.15);
    border: 1px solid var(--ki-danger);
    color: var(--ki-danger);
}

.submit-btn {
    padding: 16px 32px;
    background: var(--ki-accent);
    color: white;
    border: none;
    border-radius: var(--ki-radius);
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--ki-transition);
    margin-top: 10px;
}

.submit-btn:hover:not(:disabled) {
    background: var(--ki-accent-hover);
    transform: translateY(-2px);
    box-shadow: var(--ki-shadow-md);
}

.submit-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.ki-tool-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--ki-shadow-md);
    border-color: var(--ki-accent);
}

/* Premium Tool - Permanenter blauer Rahmen */
.ki-tool-premium .ki-tool-card {
    border-color: var(--ki-accent) !important;
    box-shadow: 0 0 0 1px var(--ki-accent), var(--ki-shadow-sm);
}

.ki-tool-premium .ki-tool-card:hover {
    box-shadow: 0 0 0 1px var(--ki-accent), var(--ki-shadow-md);
}

.btn-loader {
    display: inline-block;
}

@media (max-width: 768px) {
    .ki-tools-submission-form {
        padding: 30px 20px;
    }
    
    .ki-tools-submission-form h2 {
        font-size: 2rem;
    }
}

/* ==========================================
   Animations & Loading States
   ========================================== */

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
}

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

.ki-tool-card {
    animation: fadeInUp 0.5s ease-out forwards;
    opacity: 0;
}

.search-loading,
.search-error,
.search-no-results {
    text-align: center;
    padding: 40px 20px;
    color: var(--ki-text-secondary);
    animation: pulse 1.5s ease-in-out infinite;
}

.search-error {
    color: var(--ki-danger);
}

/* Hover Effects */
.ki-tool-card,
.btn-load-more,
.btn-primary,
.btn-secondary,
.submit-btn {
    will-change: transform;
}

/* Focus Visible for Accessibility */
*:focus-visible {
    outline: 2px solid var(--ki-accent);
    outline-offset: 2px;
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}