/* CSS-Variablen für Theme-Switcher */
:root {
    --bg-color: #ffffff;
    --text-color: #333333;
    --header-bg: rgba(255, 255, 255, 0.1);
    --card-bg: rgba(255, 255, 255, 0.2);
    --border-color: rgba(255, 255, 255, 0.3);
    --accent-color: #3498db;
}

[data-theme="dark"] {
    --bg-color: #1a1a1a;
    --text-color: #ffffff;
    --header-bg: rgba(0, 0, 0, 0.3);
    --card-bg: rgba(0, 0, 0, 0.4);
    --border-color: rgba(255, 255, 255, 0.2);
}

/* Dark Theme spezifische Transparenz-Anpassungen */
[data-theme="dark"] .tabs {
    background: rgba(0, 0, 0, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.05);
}

[data-theme="dark"] .tab-pane {
    background: rgba(0, 0, 0, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.05);
}

[data-theme="dark"] .tab-link:hover {
    background: rgba(255, 255, 255, 0.05);
}

[data-theme="dark"] .tab-link.active {
    background: rgba(255, 255, 255, 0.1);
    text-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
}

/* VDO Tool Dark Theme Anpassungen */
[data-theme="dark"] .sidebar,
[data-theme="dark"] .main-panel {
    background: rgba(0, 0, 0, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.05);
}

[data-theme="dark"] .form-group input[type="text"] {
    background: rgba(0, 0, 0, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

/* VDO.Ninja Tool Specific Styles */
.tool-container {
    display: flex;
    gap: 1rem;
    max-width: 1400px;
    margin: 0 auto;
    padding: 1rem;
    min-height: calc(100vh - 60px);
}

/* Sidebar & Main Panel - Tab-Content Style */
.sidebar,
.main-panel {
    background: var(--card-bg);
    backdrop-filter: blur(10px);
    border-radius: 15px;
    padding: 2rem;
    border: 1px solid var(--border-color);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
}

.sidebar {
    flex: 0 0 300px;
    height: fit-content;
}

.main-panel {
    flex: 1;
    display: flex;
    flex-direction: column;
}

/* Form Elements */
.form-group {
    margin-bottom: 1rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.3rem;
    font-weight: 500;
    font-size: 0.9rem;
    color: var(--text-color);
}

.form-group input[type="text"] {
    width: 100%;
    padding: 0.6rem;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    background: var(--bg-color);
    color: var(--text-color);
    font-size: 0.9rem;
    transition: border-color 0.3s ease;
}

.form-group input[type="text"]:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 2px rgba(52, 152, 219, 0.2);
}

/* Buttons */
.button {
    padding: 0.6rem 1rem;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    background: var(--card-bg);
    color: var(--text-color);
    cursor: pointer;
    font-size: 0.85rem;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-block;
    text-align: center;
}

.button:hover {
    background: var(--accent-color);
    color: white;
    border-color: var(--accent-color);
    transform: translateY(-1px);
}

.button.primary,
.button.active {
    background: var(--accent-color);
    color: white;
    border-color: var(--accent-color);
}

.button.primary:hover,
.button.active:hover {
    background: #2980b9;
    border-color: #2980b9;
}

.button-secondary {
    padding: 0.6rem 1rem;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    background: transparent;
    color: var(--text-color);
    cursor: pointer;
    font-size: 0.85rem;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-block;
    text-align: center;
}

.button-secondary:hover {
    background: var(--border-color);
    color: var(--text-color);
}

/* Resolution Buttons */
.resolution-btn,
.resolution-button {
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.7rem;
    font-weight: 500;
    border: 1px solid var(--border-color);
    background: var(--card-bg);
    color: var(--text-color);
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.3s ease;
    text-align: center;
    line-height: 1.2;
    min-height: 30px;
    min-width: 45px;
    flex-shrink: 0;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.resolution-btn:hover,
.resolution-button:hover {
    background: var(--accent-color);
    color: white;
    border-color: var(--accent-color);
    transform: scale(1.02);
}

.resolution-btn.active,
.resolution-btn.selected,
.resolution-button.active,
.resolution-button.selected {
    background: var(--accent-color);
    color: white;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 2px var(--accent-color-alpha);
}

.resolution-btn.custom,
.resolution-button.custom-add-button {
    background: #e74c3c;
    color: white;
    border-color: #e74c3c;
    font-weight: bold;
    font-size: 1.2rem;
}

.resolution-btn.custom:hover,
.resolution-button.custom-add-button:hover {
    background: #c0392b;
    border-color: #c0392b;
}

/* Framerate Buttons */
.framerate-btn,
.framerate-button {
    padding: 0.5rem;
    font-size: 0.8rem;
    font-weight: 500;
    border: 1px solid var(--border-color);
    background: var(--card-bg);
    color: var(--text-color);
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.3s ease;
    text-align: center;
}

.framerate-btn:hover,
.framerate-button:hover {
    background: var(--accent-color);
    color: white;
    border-color: var(--accent-color);
}

.framerate-btn.active,
.framerate-btn.selected,
.framerate-button.active,
.framerate-button.selected {
    background: var(--accent-color);
    color: white;
    border-color: var(--accent-color);
}

/* Checkboxes */
.checkbox-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.checkbox-row {
    display: flex;
    gap: 1rem;
    align-items: center;
    flex-wrap: wrap;
}

.checkbox-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.checkbox-item input[type="checkbox"] {
    width: 16px;
    height: 16px;
    accent-color: var(--accent-color);
}

.checkbox-item label,
.checkbox-row label {
    font-size: 0.85rem;
    margin: 0;
    cursor: pointer;
}

/* Slider */
.slider-group {
    margin-bottom: 1rem;
}

.slider {
    width: 100%;
    height: 4px;
    border-radius: 2px;
    background: var(--border-color);
    outline: none;
    -webkit-appearance: none;
    appearance: none;
    margin: 0.5rem 0;
}

.slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--accent-color);
    cursor: pointer;
}

.slider::-moz-range-thumb {
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--accent-color);
    cursor: pointer;
    border: none;
}

.slider-value {
    font-size: 0.85rem;
    color: var(--accent-color);
    font-weight: 500;
}

/* Output Section */
.output-section {
    margin-top: 1rem;
    padding: 2rem;
    background: var(--card-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-color);
    border-radius: 15px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.output-section:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.15);
    border-color: var(--accent-color);
}

.output-section h3 {
    margin-bottom: 1rem;
    font-size: 1.1rem;
    color: var(--accent-color);
}

.url-output {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 0.8rem;
    align-items: center;
}

.url-input {
    flex: 1;
    padding: 0.5rem;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    background: var(--card-bg);
    color: var(--text-color);
    font-size: 0.8rem;
    font-family: monospace;
}

.copy-btn {
    padding: 0.5rem 0.8rem;
    font-size: 0.8rem;
    background: var(--accent-color);
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.copy-btn:hover {
    background: #2980b9;
}

/* Presets */
.presets-section {
    margin-top: 1rem;
}

.presets-section h3 {
    margin-bottom: 0.8rem;
    font-size: 1rem;
    color: var(--accent-color);
}

.preset-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem;
    margin-bottom: 0.8rem;
    background: var(--card-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    font-size: 0.85rem;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.preset-item:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
    border-color: var(--accent-color);
}

.preset-actions {
    display: flex;
    gap: 0.3rem;
}

.preset-btn {
    padding: 0.3rem 0.6rem;
    font-size: 0.7rem;
    border-radius: 3px;
}

.preset-btn.load {
    background: var(--accent-color);
    color: white;
    border: none;
}

.preset-btn.delete {
    background: #e74c3c;
    color: white;
    border: none;
}

/* Popup */
.popup-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    display: none;
    justify-content: center;
    align-items: center;
    z-index: 2000;
}

.popup-overlay.active {
    display: flex;
}

.popup-content {
    background: var(--card-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-color);
    border-radius: 15px;
    padding: 2rem;
    max-width: 400px;
    width: 90%;
    box-shadow: 0 15px 50px rgba(0, 0, 0, 0.4);
    transition: all 0.3s ease;
}

.popup-header {
    margin-bottom: 1.5rem;
}

.popup-header h3 {
    margin: 0;
    color: var(--accent-color);
}

.popup-body {
    margin-bottom: 1.5rem;
}

.popup-actions {
    display: flex;
    gap: 1rem;
    justify-content: flex-end;
}

/* Reset und Grundstyles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Arial', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
    min-height: 100vh;
    transition: background-color 0.3s ease, color 0.3s ease;
}

/* Canvas für animierten Hintergrund */
#particle-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
}

/* Container für zentriertes Layout */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Transparenter Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: var(--header-bg);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
    transition: all 0.3s ease;
}

.header .container {
    display: flex;
    justify-content: flex-end;
    align-items: center;
    padding: 0.5rem 20px;
}

/* Theme Switcher */
#theme-switcher {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 50%;
    transition: all 0.3s ease;
    background: var(--card-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-color);
}

#theme-switcher:hover {
    transform: scale(1.1);
    background: var(--border-color);
}

/* Content Styles */
.content {
    padding: 2rem 0;
    margin-top: 60px; /* Adjusted for header height */
}

.content h1 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: var(--text-color);
}

.subtitle {
    text-align: center;
    color: var(--text-color);
    opacity: 0.7;
    margin-bottom: 2rem;
    font-size: 1.1rem;
}

/* Tool Container - Sidebar and Main Panel */
.tool-container {
    display: flex;
    gap: 1rem;
    max-width: 1400px;
    margin: 0 auto;
    padding: 1rem;
    min-height: calc(100vh - 60px);
}

/* Sidebar & Main Panel */
.sidebar,
.main-panel {
    background: var(--card-bg);
    backdrop-filter: blur(10px);
    border-radius: 15px;
    padding: 2rem;
    border: 1px solid var(--border-color);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
}

.sidebar {
    flex: 0 0 300px;
    height: fit-content;
}

.main-panel {
    flex: 1;
    display: flex;
    flex-direction: column;
}

/* Protocol Selector */
.protocol-selector {
    display: flex;
    justify-content: center;
    margin-bottom: 2rem;
    gap: 1rem;
}

.protocol-btn {
    padding: 0.8rem 1.5rem;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    background: var(--card-bg);
    color: var(--text-color);
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-block;
    text-align: center;
}

.protocol-btn:hover {
    background: var(--accent-color);
    color: white;
    border-color: var(--accent-color);
    transform: translateY(-2px);
}

.protocol-btn.active {
    background: var(--accent-color);
    color: white;
    border-color: var(--accent-color);
}

/* Form Layout */
.form-row {
    display: flex;
    gap: 1rem;
    margin-bottom: 1rem;
    align-items: flex-start;
}

.form-col {
    flex: 1;
}

.form-col-full {
    width: 100%;
}

/* Form Groups */
.form-group {
    margin-bottom: 1rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.3rem;
    font-weight: 500;
    font-size: 0.9rem;
    color: var(--text-color);
}

.form-group input[type="text"] {
    width: 100%;
    padding: 0.6rem;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    background: var(--bg-color);
    color: var(--text-color);
    font-size: 0.9rem;
    transition: border-color 0.3s ease;
}

.form-group input[type="text"]:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 2px rgba(52, 152, 219, 0.2);
}

.error-message {
    color: #e74c3c;
    font-size: 0.8rem;
    margin-top: 0.3rem;
    display: block;
    min-height: 1em;
}

/* Output Section */
.output-section {
    margin-top: 2rem;
    padding: 2rem;
    background: var(--card-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-color);
    border-radius: 15px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.output-section:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.15);
    border-color: var(--accent-color);
}

.output-section h2 {
    margin-bottom: 1rem;
    font-size: 1.5rem;
    color: var(--accent-color);
}

.output-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 1rem;
    margin-bottom: 2rem;
}

.output-item {
    background: var(--card-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    padding: 1.5rem 1rem;
    text-align: center;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.output-item:hover {
    transform: translateY(-5px);
    border-color: var(--accent-color);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
}

.output-item h3 {
    font-size: 0.9rem;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--accent-color);
}

.output-value {
    font-size: 1rem;
    font-weight: bold;
    word-break: break-all;
    min-height: 1.2em;
    color: var(--text-color);
}

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        padding: 0 15px;
    }
    
    .content h1 {
        font-size: 2rem;
    }
    
    .tool-container {
        flex-direction: column;
        padding: 0.5rem;
    }

    .sidebar {
        flex: none;
        order: 2;
    }

    .main-panel {
        order: 1;
    }
    
    .protocol-selector {
        flex-direction: column;
        align-items: center;
    }
    
    .protocol-btn {
        width: 100%;
        max-width: 300px;
    }
    
    .form-row {
        flex-direction: column;
        gap: 0.5rem;
    }
    
    .output-grid {
        grid-template-columns: 1fr;
    }
    
    .output-section {
        padding: 1.5rem;
    }
    
    .output-item {
        padding: 1rem;
    }
}