/**
 * Markdown zu PDF Konverter - Stylesheet
 */

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #2563eb;
    --primary-hover: #1d4ed8;
    --success-color: #10b981;
    --success-hover: #059669;
    --secondary-color: #6b7280;
    --secondary-hover: #4b5563;
    --danger-color: #ef4444;
    --bg-color: #f9fafb;
    --card-bg: #ffffff;
    --border-color: #e5e7eb;
    --text-color: #111827;
    --text-secondary: #6b7280;
    --shadow: 0 1px 3px rgba(0, 0, 0, 0.1), 0 1px 2px 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);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
}

.container {
    max-width: 1600px;
    margin: 0 auto;
    padding: 20px;
}

/* Header */
header {
    text-align: center;
    margin-bottom: 40px;
    padding: 30px 0;
}

header h1 {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 10px;
}

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

/* Main Content Layout */
.main-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
    margin-bottom: 30px;
}

@media (max-width: 1200px) {
    .main-content {
        grid-template-columns: 1fr;
    }
}

.left-panel,
.right-panel {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

/* Sections */
section {
    background: var(--card-bg);
    border-radius: 12px;
    padding: 25px;
    box-shadow: var(--shadow);
}

section h2 {
    font-size: 1.5rem;
    margin-bottom: 20px;
    color: var(--text-color);
    border-bottom: 2px solid var(--border-color);
    padding-bottom: 10px;
}

section h3 {
    font-size: 1.2rem;
    margin: 20px 0 15px 0;
    color: var(--text-color);
}

.info-text {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 15px;
}

/* Textarea */
#markdownInput {
    width: 100%;
    min-height: 400px;
    padding: 15px;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', 'Consolas', monospace;
    font-size: 14px;
    line-height: 1.6;
    resize: vertical;
    transition: border-color 0.3s;
}

#markdownInput:focus {
    outline: none;
    border-color: var(--primary-color);
}

/* Configuration Grid */
.config-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 15px;
}

.config-group {
    display: flex;
    flex-direction: column;
}

.config-group label {
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text-color);
    font-size: 0.9rem;
}

.config-group select,
.config-group input[type="number"],
.config-group input[type="color"],
.config-group input[type="text"] {
    padding: 10px 12px;
    border: 2px solid var(--border-color);
    border-radius: 6px;
    font-size: 14px;
    transition: border-color 0.3s;
}

.config-group input[type="color"] {
    height: 45px;
    cursor: pointer;
}

.config-group select:focus,
.config-group input[type="number"]:focus,
.config-group input[type="color"]:focus,
.config-group input[type="text"]:focus {
    outline: none;
    border-color: var(--primary-color);
}

/* File Upload */
.file-upload {
    position: relative;
}

.file-upload input[type="file"] {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
}

.file-label {
    display: inline-block;
    padding: 12px 24px;
    background: var(--secondary-color);
    color: white;
    border-radius: 8px;
    cursor: pointer;
    transition: background-color 0.3s;
    font-weight: 600;
}

.file-label:hover {
    background: var(--secondary-hover);
}

/* Template Preview */
.template-config {
    margin-top: 20px;
}

.template-preview {
    position: relative;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    padding: 10px;
    margin: 20px 0;
    background: #f3f4f6;
    overflow: auto;
    max-height: 500px;
}

#templateCanvas {
    display: block;
    max-width: 100%;
    cursor: crosshair;
}

.selection-box {
    position: absolute;
    border: 3px solid var(--primary-color);
    background: rgba(37, 99, 235, 0.1);
    pointer-events: auto;
    display: none;
    cursor: move;
}

/* Resize Handles */
.resize-handle {
    position: absolute;
    width: 12px;
    height: 12px;
    background: var(--primary-color);
    border: 2px solid white;
    border-radius: 50%;
    pointer-events: auto;
    z-index: 10;
}

.resize-handle.nw { top: -6px; left: -6px; cursor: nw-resize; }
.resize-handle.ne { top: -6px; right: -6px; cursor: ne-resize; }
.resize-handle.sw { bottom: -6px; left: -6px; cursor: sw-resize; }
.resize-handle.se { bottom: -6px; right: -6px; cursor: se-resize; }
.resize-handle.n { top: -6px; left: 50%; margin-left: -6px; cursor: n-resize; }
.resize-handle.s { bottom: -6px; left: 50%; margin-left: -6px; cursor: s-resize; }
.resize-handle.w { top: 50%; left: -6px; margin-top: -6px; cursor: w-resize; }
.resize-handle.e { top: 50%; right: -6px; margin-top: -6px; cursor: e-resize; }

/* Buttons */
.btn {
    padding: 12px 24px;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.btn-primary {
    background: var(--primary-color);
    color: white;
}

.btn-primary:hover {
    background: var(--primary-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-success {
    background: var(--success-color);
    color: white;
}

.btn-success:hover {
    background: var(--success-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-secondary {
    background: var(--secondary-color);
    color: white;
    margin-top: 15px;
}

.btn-secondary:hover {
    background: var(--secondary-hover);
}

.action-buttons {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
}

/* Preview Section */
.preview-section {
    height: 100%;
}

.preview-container {
    border: 2px solid var(--border-color);
    border-radius: 8px;
    min-height: 600px;
    background: #f3f4f6;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.preview-placeholder {
    text-align: center;
    color: var(--text-secondary);
}

.preview-placeholder svg {
    margin-bottom: 20px;
    opacity: 0.5;
}

.preview-placeholder p {
    font-size: 1rem;
}

#pdfPreview {
    width: 100%;
    height: 800px;
    border: none;
    border-radius: 8px;
}

/* Loading Overlay */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

.loading-overlay p {
    color: white;
    font-size: 1.2rem;
    margin-top: 20px;
}

.spinner {
    width: 60px;
    height: 60px;
    border: 5px solid rgba(255, 255, 255, 0.3);
    border-top-color: white;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

/* Error Message */
.error-message {
    position: fixed;
    top: 20px;
    right: 20px;
    background: var(--danger-color);
    color: white;
    padding: 15px 20px;
    border-radius: 8px;
    box-shadow: var(--shadow-lg);
    max-width: 400px;
    z-index: 1001;
    animation: slideIn 0.3s ease-out;
}

@keyframes slideIn {
    from {
        transform: translateX(400px);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

/* Responsive Design */
@media (max-width: 768px) {
    header h1 {
        font-size: 2rem;
    }

    .action-buttons {
        grid-template-columns: 1fr;
    }

    .config-grid {
        grid-template-columns: 1fr;
    }

    #markdownInput {
        min-height: 300px;
    }

    #pdfPreview {
        height: 500px;
    }
}

/* Scrollbar Styling */
::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

::-webkit-scrollbar-track {
    background: var(--bg-color);
}

::-webkit-scrollbar-thumb {
    background: var(--secondary-color);
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--secondary-hover);
}