/* CodeBin-like Code Sharing Platform */

/* CSS Variables */
:root {
    --bg-primary: #0d1117;
    --bg-secondary: #161b22;
    --bg-tertiary: #21262d;
    --text-primary: #f0f6fc;
    --text-secondary: #8b949e;
    --text-muted: #6e7681;
    --accent-green: #238636;
    --accent-blue: #1f6feb;
    --border-default: #30363d;
    --border-muted: #21262d;
    --font-mono: 'JetBrains Mono', 'SF Mono', 'Monaco', 'Consolas', monospace;
}

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

html, body {
    height: 100%;
    width: 100%;
    font-family: var(--font-mono);
    background: var(--bg-primary);
    color: var(--text-primary);
    overflow: hidden;
}

/* Header */
.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 20px;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-default);
    height: 50px;
    z-index: 100;
}

.logo {
    font-weight: bold;
    font-size: 18px;
    color: var(--text-primary);
    cursor: pointer;
}

.logo:hover {
    color: var(--accent-green);
}

.controls {
    display: flex;
    gap: 10px;
}

.btn {
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border: 1px solid var(--border-default);
    padding: 6px 12px;
    border-radius: 4px;
    cursor: pointer;
    font-family: var(--font-mono);
    font-size: 12px;
    transition: all 0.2s ease;
}

.btn:hover {
    background: var(--accent-blue);
    border-color: var(--accent-blue);
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.btn:disabled:hover {
    background: var(--bg-tertiary);
    border-color: var(--border-default);
}

/* Main Container */
.main-container {
    display: flex;
    height: calc(100vh - 50px);
    position: relative;
}

/* Line Numbers */
.line-numbers {
    background: var(--bg-secondary);
    color: var(--text-muted);
    padding: 20px 15px 20px 20px;
    font-family: var(--font-mono);
    font-size: 14px;
    line-height: 1.5;
    text-align: right;
    white-space: pre;
    user-select: none;
    border-right: 1px solid var(--border-default);
    overflow: hidden;
    min-width: 60px;
    width: auto;
}

/* Textarea (for main page) */
#code {
    flex: 1;
    background: var(--bg-primary);
    color: var(--text-primary);
    border: none;
    outline: none;
    padding: 20px;
    font-family: var(--font-mono);
    font-size: 14px;
    line-height: 1.5;
    resize: none;
    white-space: pre;
    overflow-wrap: normal;
    overflow-x: auto;
    tab-size: 4;
}

#code::placeholder {
    color: var(--text-muted);
}

/* View Container (for view page) */
.view-container {
    display: flex;
    height: calc(100vh - 50px);
    width: 100%;
}

.code-content {
    flex: 1;
    background: var(--bg-primary);
    color: var(--text-primary);
    margin: 0;
    padding: 20px;
    font-family: var(--font-mono);
    font-size: 14px;
    line-height: 1.5;
    overflow: auto;
    white-space: pre;
    border: none;
}

.code-content code {
    background: transparent !important;
    padding: 0 !important;
    font-family: var(--font-mono) !important;
    font-size: 14px !important;
    line-height: 1.5 !important;
}

/* Code View Body */
body.code-view {
    overflow: auto;
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 12px;
    height: 12px;
}

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

::-webkit-scrollbar-thumb {
    background: var(--border-default);
    border-radius: 6px;
}

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

/* Mobile Responsive */
@media (max-width: 768px) {
    .header {
        padding: 8px 15px;
        height: 45px;
    }
    
    .logo {
        font-size: 16px;
    }
    
    .btn {
        padding: 4px 8px;
        font-size: 11px;
    }
    
    .main-container,
    .view-container {
        height: calc(100vh - 45px);
    }
    
    .line-numbers {
        padding: 15px 10px 15px 15px;
        font-size: 12px;
        min-width: 45px;
    }
    
    #code,
    .code-content {
        padding: 15px;
        font-size: 12px;
    }
    
    .code-content code {
        font-size: 12px !important;
    }
}

@media (max-width: 480px) {
    .header {
        padding: 6px 10px;
        height: 40px;
    }
    
    .logo {
        font-size: 14px;
    }
    
    .controls {
        gap: 5px;
    }
    
    .btn {
        padding: 3px 6px;
        font-size: 10px;
    }
    
    .main-container,
    .view-container {
        height: calc(100vh - 40px);
    }
    
    .line-numbers {
        padding: 10px 8px 10px 10px;
        font-size: 11px;
        min-width: 35px;
    }
    
    #code,
    .code-content {
        padding: 10px;
        font-size: 11px;
    }
    
    .code-content code {
        font-size: 11px !important;
    }
}

/* Message Page */
.container {
    max-width: 800px;
    margin: 0 auto;
    padding: 40px 20px;
    text-align: center;
}

.message {
    background: var(--bg-secondary);
    border: 1px solid var(--border-default);
    border-radius: 8px;
    padding: 40px;
    margin: 20px 0;
}

.message h1 {
    color: var(--text-primary);
    margin-bottom: 20px;
    font-size: 24px;
}

.message p {
    color: var(--text-secondary);
    margin-bottom: 20px;
    font-size: 16px;
}

.message .btn {
    display: inline-block;
    text-decoration: none;
    margin-top: 10px;
}

/* Syntax Highlighting Overrides */
.hljs {
    background: var(--bg-primary) !important;
    color: var(--text-primary) !important;
}

/* High DPI Display */
@media (min-resolution: 2dppx) {
    body, #code, .code-content {
        -webkit-font-smoothing: antialiased;
        -moz-osx-font-smoothing: grayscale;
    }
}