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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background-color: #0d0d0d;
    color: #e0e0e0;
    overflow: hidden;
}

.container {
    display: flex;
    height: 100vh;
    width: 100vw;
}

/* Left Sidebar */
.sidebar {
    width: 280px;
    background-color: #1a1a1a;
    border-right: 1px solid #2a2a2a;
    display: flex;
    flex-direction: column;
    overflow-y: auto;
}

.logo-container {
    padding: 20px;
    text-align: center;
    border-bottom: 1px solid #2a2a2a;
}

.logo {
    width: 100%;
    max-width: 240px;
    height: auto;
}

.fit-button {
    margin: 16px 20px;
    padding: 10px;
    background-color: #2a2a2a;
    color: #e0e0e0;
    border: 1px solid #3a3a3a;
    border-radius: 4px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    transition: background-color 0.2s;
}

.fit-button:hover {
    background-color: #3a3a3a;
}

.fit-button:active {
    background-color: #4a4a4a;
}

.file-protocol-warning {
    margin: 16px;
    padding: 14px;
    background: rgba(180, 100, 0, 0.15);
    border: 1px solid rgba(200, 120, 0, 0.5);
    border-radius: 6px;
    font-size: 12px;
    line-height: 1.5;
    color: #e0c080;
}
.file-protocol-warning code {
    display: block;
    margin: 8px 0 4px;
    padding: 6px 8px;
    background: rgba(0, 0, 0, 0.3);
    border-radius: 4px;
    font-size: 11px;
}

.file-list-header {
    padding: 12px 20px;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: #888;
    border-bottom: 1px solid #2a2a2a;
}

.sidebar-credit {
    margin-top: auto;
    padding: 12px 20px;
    font-size: 10px;
    color: #555;
    letter-spacing: 0.3px;
    border-top: 1px solid #2a2a2a;
}

.file-list {
    list-style: none;
    flex-grow: 1;
}

.file-list li {
    padding: 12px 20px;
    cursor: pointer;
    border-bottom: 1px solid #222;
    transition: background-color 0.2s;
    font-size: 14px;
}

.file-list li:hover {
    background-color: #2a2a2a;
}

.file-list li.active {
    background-color: #2d2d2d;
    border-left: 3px solid #4a9eff;
    padding-left: 17px;
    color: #4a9eff;
}

/* Right Viewer Area */
.viewer-area {
    flex-grow: 1;
    position: relative;
    background-color: #0d0d0d;
}

#viewerContainer {
    width: 100%;
    height: 100%;
}

#viewerContainer canvas {
    display: block;
    width: 100%;
    height: 100%;
}

.status-label {
    position: absolute;
    bottom: 16px;
    left: 16px;
    background-color: rgba(26, 26, 26, 0.85);
    padding: 8px 14px;
    border-radius: 4px;
    font-size: 13px;
    color: #aaa;
    border: 1px solid #2a2a2a;
    backdrop-filter: blur(4px);
}

/* Scrollbar styling */
.sidebar::-webkit-scrollbar {
    width: 8px;
}

.sidebar::-webkit-scrollbar-track {
    background: #1a1a1a;
}

.sidebar::-webkit-scrollbar-thumb {
    background: #2a2a2a;
    border-radius: 4px;
}

.sidebar::-webkit-scrollbar-thumb:hover {
    background: #3a3a3a;
}