* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
    background-color: #f8f9fa;
    color: #333;
    line-height: 1.8;
    max-width: 900px;
    margin: 0 auto;
    padding: 30px;
}
/* Blog list page override */
body.list-page {
    max-width: none;
    padding: 0;
    line-height: 1.6;
}

.topbar {
    width: 100%;
    background-color: #fff;
    color: white;
    text-align: center;
    font-size: 23px;
    display: flex;
    justify-content: space-between;
    padding: 15px 0px;
    box-shadow: 0 3px 6px 0 rgba(50, 50, 50, 0.3);
}

.innerbar{
    width: 1000px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.innerbar .logo{
    float: none;
    color: white;
    text-decoration: none;
    font-size: 25px;
    font-weight: 600;
    padding:0 0 0 25px;
}
.innerbar .logo .pdf{ color: #EB1000; }
.innerbar .logo .is{ color: #007bff; }

.innerbar .nav-links { display: flex; gap: 30px; align-items: center; }
.innerbar .nav-links a { color: #333; text-decoration: none; font-size: 16px; font-weight: 500; padding: 8px 16px; border-radius: 6px; transition: all 0.3s ease; }
.innerbar .nav-links a:hover { background-color: #f8f9fa; color: #007bff; }

h1 {
    color: #2c3e50;
    text-align: center;
    border-bottom: 3px solid #3498db;
    padding-bottom: 15px;
    margin-bottom: 30px;
}

h2 {
    color: #2980b9;
    border-left: 5px solid #3498db;
    padding-left: 15px;
    margin-top: 40px;
}

/* Unified list styles */
ul, ol {
    margin: 16px 0 16px 24px;
    padding-left: 20px;
}
li {
    margin: 6px 0;
    line-height: 1.8;
}
ul { list-style: disc; }
ul ul { list-style: circle; }
ul ul ul { list-style: square; }
ol { list-style: decimal; }
ol ol { list-style: lower-alpha; }
ol ol ol { list-style: lower-roman; }

.highlight {
    background-color: #e3f2fd;
    padding: 20px;
    border-radius: 8px;
    border-left: 4px solid #3498db;
    margin: 25px 0;
    font-style: italic;
}

.code-block {
    background-color: #2c3e50;
    color: #ecf0f1;
    padding: 15px;
    border-radius: 8px;
    margin: 20px 0;
    overflow-x: auto;
    font-family: 'Courier New', monospace;
}

.milestone { background-color: #f9f9f9; padding: 5px 10px; border-radius: 4px; font-weight: bold; color: #2980b9; }

.tip { background-color: #e8f5e9; border-left: 4px solid #4CAF50; padding: 10px 20px; margin: 20px 0; }
.warning { background-color: #ffebee; border-left: 4px solid #f44336; padding: 15px; margin: 15px 0; }

table { width: 100%; border-collapse: collapse; margin: 25px 0; box-shadow: 0 2px 5px rgba(0,0,0,0.1); }
th, td { border: 1px solid #ddd; padding: 12px 15px; text-align: left; }
th { background-color: #f2f2f2; font-weight: 600; }

.tool-table th:nth-child(1), .tool-table td:nth-child(1) { width: 25%; }
.editor-table th:nth-child(1), .editor-table td:nth-child(1) { width: 25%; }

.method-section, .pdf-section { background-color: #f5f5f5; padding: 20px; border-radius: 8px; margin: 25px 0; border: 1px solid #e0e0e0; }
.method-section h3, .pdf-section h3 { color: #d32f2f; margin-top: 0; }
.step, .process-step { background-color: #2c3e50; color: white; width: 30px; height: 30px; border-radius: 50%; display: inline-flex; align-items: center; justify-content: center; margin-right: 10px; font-weight: bold; }

.feature-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 15px; margin: 20px 0; }
.feature-card { background: white; padding: 15px; border-radius: 8px; box-shadow: 0 2px 4px rgba(0,0,0,0.1); border: 1px solid #eee; }
.tool-feature { background-color: #fff3e0; border-left: 4px solid #FF9800; padding: 15px; margin: 15px 0; border-radius: 4px; }
.challenge { background-color: #ffebee; border-left: 4px solid #f44336; padding: 15px; margin: 15px 0; border-radius: 4px; }

.footer { text-align: center; margin-top: 60px; padding: 20px; color: #7f8c8d; border-top: 1px solid #eee; }
.footer a{ color: #7f8c8d; text-decoration: none; }

@media (max-width: 768px) {
    .innerbar { width: 100%; padding: 0 20px; }
    .feature-grid { grid-template-columns: 1fr; }
}

/* Blog list specific */
.container { max-width: 1200px; margin: 0 auto; padding: 20px; }
header { text-align: center; margin-bottom: 40px; padding: 20px 0; }
header h1 { font-size: 2.8rem; color: #2c3e50; margin-bottom: 10px; border: none; padding: 0; }
.subtitle { font-size: 1.2rem; color: #7f8c8d; max-width: 600px; margin: 0 auto; }
.blog-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(350px, 1fr)); gap: 30px; margin-top: 20px; }
.blog-card { background: white; border-radius: 12px; overflow: hidden; box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08); transition: transform 0.3s ease, box-shadow 0.3s ease; display: flex; flex-direction: column; height: 100%; position: relative; }
.blog-card:hover { transform: translateY(-10px); box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15); }
.card-image { height: 200px; overflow: hidden; position: relative; }
.card-image img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease; }
.blog-card:hover .card-image img { transform: scale(1.05); }
.card-content { padding: 25px; flex-grow: 1; display: flex; flex-direction: column; }
.card-content h3 { font-size: 1.5rem; margin-bottom: 15px; color: #2c3e50; line-height: 1.3; }
.excerpt { color: #7f8c8d; margin-bottom: 20px; line-height: 1.6; flex-grow: 1; }
.meta { color: #95a5a6; font-size: 0.9rem; margin-top: auto; }
.card-link { position: absolute; top: 0; left: 0; width: 100%; height: 100%; z-index: 1; cursor: pointer; }
footer { text-align: center; margin-top: 60px; padding: 20px; color: #7f8c8d; border-top: 1px solid #eee; }

@media (max-width: 768px) {
    .blog-grid { grid-template-columns: 1fr; }
}