/* Shared single-column layout for Java tutorial pages */
:root {
    --java-primary: #5382a1;
    --java-secondary: #f89820;
    --java-accent: #e76f00;
    --java-light: #f0f8ff;
    --java-dark: #2c3e50;
}

body {
    background-color: #f8f9fc;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
    margin: 0;
    padding: 0;
}

.page-container {
    display: flex;
    min-height: 100vh;
}

.main-content {
    flex: 1 1 auto;
    min-width: 0;
    width: 100%;
    max-width: 100%;
    display: block;
    padding: 2rem;
    background-color: white;
    min-height: 100vh;
}

.page-container > .main-content > section,
.page-container > .main-content > header {
    display: block;
    width: 100%;
    max-width: 100%;
}

.content-header {
    margin-bottom: 2.5rem;
    padding-bottom: 1.5rem;
    border-bottom: 3px solid var(--java-primary);
}

.topic-badge {
    font-size: 0.9rem;
    padding: 0.4rem 1rem;
    border-radius: 20px;
    background-color: var(--java-primary) !important;
}

.content-section {
    margin-bottom: 3rem;
    padding: 1.5rem;
    border-radius: 12px;
    background: var(--java-light);
    border-left: 5px solid var(--java-primary);
}

.content-section h2 {
    color: var(--java-dark);
    font-weight: 600;
    margin-bottom: 1.5rem;
    padding-bottom: 0.75rem;
    border-bottom: 2px solid rgba(83, 130, 161, 0.2);
}

.content-section h3 {
    color: var(--java-primary);
    font-size: 1.15rem;
    font-weight: 600;
    margin-top: 1.5rem;
    margin-bottom: 0.75rem;
}

.code-container {
    background: #2d3748;
    border-radius: 8px;
    padding: 1.5rem;
    margin: 1.5rem 0;
    position: relative;
    overflow-x: auto;
}

.code-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
    color: #e2e8f0;
}

.code-title {
    font-weight: 500;
    font-size: 1rem;
}

.copy-btn {
    background: #4a5568;
    color: white;
    border: none;
    padding: 0.25rem 0.75rem;
    border-radius: 4px;
    font-size: 0.85rem;
    cursor: pointer;
}

.copy-btn:hover {
    background: #2d3748;
}

pre {
    margin: 0;
    font-family: 'Courier New', monospace;
    font-size: 0.95rem;
    line-height: 1.5;
}

/* Inline code in paragraphs, lists, tables — not inside code blocks */
.content-section p code,
.content-section li code,
.content-section td code,
.content-header code {
    font-family: 'Courier New', monospace;
    color: #c7254e;
    background: #f1f3f5;
    padding: 0.15em 0.4em;
    border-radius: 4px;
    font-size: 0.92em;
}

/* Code blocks: light text on dark panel (works with or without highlight.js) */
.code-container pre {
    margin: 0;
    padding: 0;
    background: transparent !important;
    border: none;
    color: #e2e8f0;
}

.code-container pre code,
.code-container code.language-java,
.code-container .hljs {
    display: block;
    font-family: 'Consolas', 'Courier New', monospace;
    font-size: 0.95rem;
    line-height: 1.55;
    color: #e2e8f0 !important;
    background: #1a202c !important;
    padding: 1rem !important;
    border-radius: 6px;
    white-space: pre;
    overflow-x: auto;
    word-break: normal;
    overflow-wrap: normal;
}

.code-container .hljs-keyword { color: #c792ea !important; }
.code-container .hljs-string { color: #c3e88d !important; }
.code-container .hljs-number { color: #f78c6c !important; }
.code-container .hljs-comment { color: #697098 !important; font-style: italic; }
.code-container .hljs-title,
.code-container .hljs-class { color: #ffcb6b !important; }
.code-container .hljs-built_in { color: #82aaff !important; }
.code-container .hljs-function { color: #82aaff !important; }

.reference-table {
    width: 100%;
    background: white;
    border-collapse: collapse;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
    margin: 1.5rem 0;
}

.reference-table th {
    background: linear-gradient(135deg, var(--java-primary) 0%, #2c3e50 100%);
    color: white;
    padding: 1rem;
    text-align: left;
    font-weight: 600;
}

.reference-table td {
    padding: 0.75rem 1rem;
    border-bottom: 1px solid #dee2e6;
    vertical-align: top;
}

.reference-table tr:nth-child(even) {
    background-color: #f8f9fa;
}

.highlight-box {
    background: linear-gradient(135deg, var(--java-primary) 0%, #2c3e50 100%);
    color: white;
    padding: 1.5rem;
    border-radius: 10px;
    margin: 1.5rem 0;
}

.tip-box {
    background: #fff3cd;
    border: 1px solid #ffecb5;
    border-left: 5px solid #ffc107;
    border-radius: 8px;
    padding: 1rem;
    margin: 1rem 0;
}

.tip-box i {
    color: #ffc107;
    margin-right: 0.5rem;
}

.bitwise-steps {
    font-family: "JetBrains Mono", Consolas, monospace;
    font-size: 0.9rem;
    background: #f8f9fa;
    border: 1px solid #dee2e6;
    border-left: 4px solid var(--java-primary);
    border-radius: 8px;
    padding: 1rem 1.15rem;
    margin: 1rem 0;
    white-space: pre-wrap;
    line-height: 1.55;
    color: #1a202c;
}

.fade-in {
    animation: fadeIn 0.6s ease-out;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.progress-indicator {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: #e9ecef;
    z-index: 1030;
}

.progress-indicator .progress-bar {
    height: 100%;
    background: linear-gradient(90deg, var(--java-primary), var(--java-accent));
    width: 0%;
    transition: width 0.3s ease;
}

@media (max-width: 992px) {
    .page-container {
        flex-direction: column;
    }
    .main-content {
        padding: 1.5rem;
    }
    .reference-table {
        display: block;
        overflow-x: auto;
    }
}

@media (max-width: 768px) {
    .main-content {
        padding: 1rem;
    }
    .content-section {
        padding: 1rem;
    }
}