* { margin: 0; padding: 0; box-sizing: border-box; }
:root { --primary: #7c3aed; --light: #a78bfa; --dark: #1e1b4b; --bg: #faf5ff; --card: #ffffff; }
body { font-family: 'Inter', 'Segoe UI', sans-serif; background: var(--bg); min-height: 100vh; color: #374151; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }
header { background: white; box-shadow: 0 2px 10px rgba(124,58,237,0.1); padding: 20px 0; position: sticky; top: 0; z-index: 100; }
.logo { font-size: 28px; font-weight: 700; color: var(--primary); text-decoration: none; }
nav a { color: #6b7280; text-decoration: none; margin-left: 25px; font-weight: 600; }
nav a:hover { color: var(--primary); }
.hero { background: linear-gradient(135deg, var(--primary), #4c1d95); padding: 80px 0; text-align: center; }
.hero h1 { font-size: 48px; color: white; margin-bottom: 10px; }
.hero p { font-size: 18px; color: #ddd6fe; }
main { padding: 50px 0; }
.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 24px; }
.card { background: white; border-radius: 16px; overflow: hidden; box-shadow: 0 4px 15px rgba(0,0,0,0.08); transition: all 0.3s; }
.card:hover { transform: translateY(-5px); box-shadow: 0 10px 30px rgba(124,58,237,0.15); }
.card img { width: 100%; height: 200px; object-fit: cover; }
.card-body { padding: 20px; }
.card h3 { color: var(--dark); font-size: 18px; margin-bottom: 10px; }
.card p { color: #6b7280; font-size: 14px; line-height: 1.6; margin-bottom: 15px; }
.card a { display: inline-block; padding: 10px 20px; background: var(--primary); color: white; text-decoration: none; border-radius: 20px; font-weight: 600; font-size: 14px; }
footer { background: var(--dark); color: #ddd6fe; padding: 40px 0; text-align: center; }
.tutorial-page, .article-page { background: white; border-radius: 20px; padding: 40px; margin: 30px auto; max-width: 900px; box-shadow: 0 4px 20px rgba(0,0,0,0.08); }
.tutorial-page h1 { color: var(--dark); font-size: 28px; margin-bottom: 10px; }
.tutorial-page .meta { color: #9ca3af; margin-bottom: 25px; }
.tutorial-page img { width: 100%; max-height: 400px; object-fit: cover; border-radius: 12px; margin-bottom: 25px; }
.tutorial-page .content { line-height: 1.9; color: #4b5563; font-size: 16px; }
.tutorial-page .content h2 { color: var(--primary); margin: 30px 0 15px; font-size: 22px; }
.tutorial-page .content p { margin-bottom: 18px; }
.tutorial-page .content ul { margin: 15px 0; padding-left: 25px; }
.tutorial-page .content li { margin-bottom: 10px; }
.article-page h1 { color: var(--dark); font-size: 28px; margin-bottom: 10px; text-align: center; }
.article-page .meta { color: #9ca3af; text-align: center; margin-bottom: 30px; }
.article-page .content { line-height: 1.9; color: #4b5563; font-size: 16px; }
.article-page .content h2 { color: var(--primary); margin: 30px 0 15px; font-size: 22px; }
.article-page .content p { margin-bottom: 18px; }
.article-page .content ul { margin: 15px 0; padding-left: 25px; }
.article-page .content li { margin-bottom: 10px; }
.back-link { color: var(--primary); text-decoration: none; font-weight: 600; }
a[href^="privacy"], a[href^="terms"] { color: #9ca3af; margin: 0 12px; }