/* === RESET + GLOBAL === */

{ margin: 0; padding: 0; box-sizing: border-box; } html { scroll-behavior: smooth; } body { font-family: 'Open Sans', sans-serif; background-color: var(--bg); color: var(--text); transition: background-color 0.3s, color 0.3s; padding-top: 60px; }


:root { --bg: #ffffff; --text: #222222; --accent: #ffd700; --topbar-bg: linear-gradient(to right, #000428, #004e92); --sidebar-bg: #111; --card-bg: #f0f0f0; --editor-bg: #1e1e1e; --editor-text: #ffffff; }

body.dark { --bg: #1a1a1a; --text: #eeeeee; --accent: #ffeb3b; --card-bg: #2c2c2c; }

/* === TOPBAR === */ .topbar { background: var(--topbar-bg); color: #fff; display: flex; justify-content: space-between; align-items: center; padding: 1rem 2rem; position: fixed; width: 100%; top: 0; left: 0; z-index: 1000; box-shadow: 0 4px 8px rgba(0,0,0,0.3); } .logo { font-family: 'Orbitron', sans-serif; font-size: 1.6rem; font-weight: bold; text-shadow: 0 0 8px var(--accent); } .mode-toggle { cursor: pointer; font-size: 1.3rem; transition: transform 0.3s ease; } .mode-toggle:hover { transform: rotate(30deg); }

/* === SIDEBAR === */ .sidebar { position: fixed; left: 0; top: 60px; width: 200px; height: calc(100% - 60px); background-color: var(--sidebar-bg); color: white; padding-top: 2rem; overflow-y: auto; z-index: 999; } .sidebar ul { list-style: none; } .sidebar li a { color: white; text-decoration: none; padding: 12px 16px; display: block; transition: background 0.2s, transform 0.2s; } .sidebar li a:hover { background-color: var(--accent); color: black; transform: translateX(5px); }

/* === MAIN CONTENT === */ .content { margin-left: 200px; padding: 2rem; }

.intro h1 { font-size: 2.5rem; margin-bottom: 1rem; } .highlight { color: var(--accent); text-shadow: 0 0 6px var(--accent); } .intro p { font-size: 1.2rem; }

/* === TUTORIAL CARDS === */ .tutorials { margin-top: 3rem; } .cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 1.5rem; margin-top: 1rem; } .card { background-color: var(--card-bg); padding: 1.2rem; border-radius: 12px; box-shadow: 0 4px 10px rgba(0,0,0,0.2); transition: transform 0.3s; } .card:hover { transform: scale(1.05); } .card h3 { margin-bottom: 0.5rem; } .card a { display: inline-block; margin-top: 0.5rem; color: var(--accent); text-decoration: none; } .card a:hover { text-decoration: underline; }

/* === EDITOR === */ .editor { margin-top: 3rem; } .editor textarea { width: 100%; height: 200px; background-color: var(--editor-bg); color: var(--editor-text); font-family: monospace; padding: 1rem; border-radius: 8px; border: 1px solid #444; resize: vertical; } .editor iframe { width: 100%; height: 250px; border: none; margin-top: 1rem; background: #fff; }

/* === FOOTER === */ .footer { text-align: center; margin-top: 4rem; padding: 1rem; color: #888; font-size: 0.9rem; }

/* === RESPONSIVE === */ @media (max-width: 768px) { .sidebar { position: static; width: 100%; height: auto; display: flex; flex-wrap: wrap; justify-content: center; padding: 0.5rem 0; } .sidebar li a { padding: 10px; text-align: center; } .content { margin-left: 0; padding: 1rem; } .topbar { flex-direction: column; gap: 0.5rem; } }

/* === FONTS === */ @import url('https://fonts.googleapis.com/css2?family=Open+Sans&family=Orbitron:wght@600&display=swap');