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

body {
    font-family: 'Ubuntu', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    overflow: hidden;
}

.container {
    display: flex;
    flex-direction: column;
    height: 100vh;
    background: white;
    max-width: 1800px;
    margin: 0 auto;
    box-shadow: 0 0 50px rgba(0, 0, 0, 0.3);
}

/* Header */
.header {
    display: flex;
    align-items: center;
    padding: 20px 30px;
    background: linear-gradient(135deg, #3533cd 0%, #00f7ff 100%);
    color: white;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.logo {
    width: 50px;
    height: 50px;
    margin-right: 15px;
    border-radius: 8px;
    background: white;
    padding: 5px;
}

.header-name h1 {
    font-size: 28px;
    font-weight: 700;
    letter-spacing: -0.5px;
}

.header-info {
    margin-left: auto;
    display: flex;
    gap: 15px;
    align-items: center;
}

#conversion-mode {
    font-size: 16px;
    font-weight: 600;
    background: rgba(255, 255, 255, 0.2);
    padding: 8px 16px;
    border-radius: 20px;
    backdrop-filter: blur(10px);
}

/* Ribbon */
.ribbon {
    display: flex;
    justify-content: space-between;
    padding: 15px 30px;
    background: #f8f9fa;
    border-bottom: 1px solid #e0e0e0;
    flex-wrap: wrap;
    gap: 10px;
}

.ribbon-group {
    display: flex;
    gap: 10px;
    align-items: center;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    border: none;
    border-radius: 6px;
    background: white;
    color: #333;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    font-family: 'Ubuntu', sans-serif;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
}

.btn:active {
    transform: translateY(0);
}

.btn-primary {
    background: linear-gradient(135deg, #3533cd 0%, #00f7ff 100%);
    color: white;
}

.btn-primary:hover {
    background: linear-gradient(135deg, #2922b8 0%, #00d9e6 100%);
}

.btn-toggle {
    background: linear-gradient(135deg, #00f7ff 0%, #3533cd 100%);
    color: white;
}

.btn-toggle:hover {
    background: linear-gradient(135deg, #00d9e6 0%, #2922b8 100%);
}

.btn-upload {
    background: #4CAF50;
    color: white;
    margin: 0;
}

.btn-upload:hover {
    background: #45a049;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none !important;
}

/* Main Content */
.main-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0;
    flex: 1;
    overflow: hidden;
}

.editor-panel,
.preview-panel {
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.editor-panel {
    border-right: 1px solid #e0e0e0;
}

.panel-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 20px;
    background: #f8f9fa;
    border-bottom: 1px solid #e0e0e0;
    font-weight: 600;
    color: #3533cd;
}

.file-info {
    font-size: 12px;
    color: #666;
    font-weight: normal;
}

#markdown-input {
    flex: 1;
    padding: 20px;
    border: none;
    resize: none;
    font-family: 'Ubuntu Mono', 'Courier New', monospace;
    font-size: 14px;
    line-height: 1.6;
    outline: none;
    background: #fafafa;
}

#preview {
    flex: 1;
    padding: 20px;
    overflow-y: auto;
    background: white;
}

#preview:empty::before {
    content: 'La previsualización aparecerá aquí...';
    color: #999;
    font-style: italic;
}

/* Preview Styles */
#preview h1 {
    font-size: 32px;
    margin-bottom: 16px;
    color: #3533cd;
    border-bottom: 3px solid #00f7ff;
    padding-bottom: 8px;
}

#preview h2 {
    font-size: 26px;
    margin-top: 24px;
    margin-bottom: 12px;
    color: #3533cd;
}

#preview h3 {
    font-size: 22px;
    margin-top: 20px;
    margin-bottom: 10px;
    color: #3533cd;
}

#preview p {
    margin-bottom: 12px;
    line-height: 1.6;
    color: #333;
}

#preview code {
    background: #f4f4f4;
    padding: 2px 6px;
    border-radius: 3px;
    font-family: 'Ubuntu Mono', monospace;
    font-size: 13px;
    color: #3533cd;
}

#preview pre {
    background: #2d2d2d;
    color: #f8f8f8;
    padding: 15px;
    border-radius: 6px;
    overflow-x: auto;
    margin: 12px 0;
    border-left: 4px solid #00f7ff;
}

#preview pre code {
    background: none;
    color: inherit;
    padding: 0;
}

#preview blockquote {
    border-left: 4px solid #3533cd;
    margin: 12px 0;
    padding-left: 15px;
    color: #666;
    font-style: italic;
}

#preview ul,
#preview ol {
    margin: 12px 0;
    padding-left: 30px;
}

#preview li {
    margin-bottom: 6px;
}

#preview table {
    width: 100%;
    border-collapse: collapse;
    margin: 12px 0;
}

#preview th,
#preview td {
    border: 1px solid #ddd;
    padding: 10px;
    text-align: left;
}

#preview th {
    background: linear-gradient(135deg, #3533cd 0%, #00f7ff 100%);
    color: white;
    font-weight: 600;
}

#preview tr:nth-child(even) {
    background: #f9f9f9;
}

#preview a {
    color: #3533cd;
    text-decoration: none;
    border-bottom: 1px solid #00f7ff;
    transition: all 0.2s ease;
}

#preview a:hover {
    color: #00f7ff;
    border-bottom-color: #3533cd;
}

#preview img {
    max-width: 100%;
    height: auto;
    border-radius: 6px;
    margin: 12px 0;
}

#preview hr {
    border: none;
    border-top: 2px solid #e0e0e0;
    margin: 24px 0;
}

/* Status Bar */
.status-bar {
    display: flex;
    justify-content: space-between;
    padding: 10px 30px;
    background: #f8f9fa;
    border-top: 1px solid #e0e0e0;
    font-size: 13px;
    color: #666;
}

#status-message {
    color: #3533cd;
    font-weight: 500;
}

#word-count {
    color: #666;
}

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

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(135deg, #3533cd 0%, #00f7ff 100%);
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(135deg, #2922b8 0%, #00d9e6 100%);
}

/* Responsive */
@media (max-width: 1024px) {
    .main-content {
        grid-template-columns: 1fr;
        grid-template-rows: 1fr 1fr;
    }

    .editor-panel {
        border-right: none;
        border-bottom: 1px solid #e0e0e0;
    }
}

@media (max-width: 768px) {
    .header {
        padding: 15px 20px;
    }

    .logo {
        width: 40px;
        height: 40px;
    }

    .header-name h1 {
        font-size: 22px;
    }

    .ribbon {
        padding: 10px 20px;
    }

    .ribbon-group {
        width: 100%;
        justify-content: center;
    }

    .btn {
        padding: 8px 16px;
        font-size: 13px;
    }

    #conversion-mode {
        font-size: 14px;
        padding: 6px 12px;
    }
}