/* Include theme.css after this stylesheet */

*{box-sizing:border-box;margin:0;padding:0}
/*:root{--primary:#635bff;--primary2:#4f46e5;--dark:#111827;--muted:#64748b;--line:#e5e7eb;--bg:#f8fafc;--white:#fff}*/
body{font-family:Arial,Helvetica,sans-serif;background:var(--bg);color:#334155;line-height:1.65}
a{text-decoration:none;color:inherit}
.topbar{height:70px;background:#fff;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:0 max(22px,calc((100% - 1200px)/2));position:sticky;top:0;z-index:10}
.brand{display:flex;align-items:center;gap:10px}
.brand-mark{width:40px;height:40px;border-radius:11px;background:var(--primary);color:#fff;display:grid;place-items:center;font-size:21px;font-weight:800}
.brand span:last-child{display:flex;flex-direction:column;line-height:1.1}
.brand small{font-size:10px;letter-spacing:1.5px;color:var(--primary);margin-top:3px}
.topbar nav{display:flex;align-items:center;gap:25px;font-size:14px;font-weight:700}
.topbar nav a:hover,.topbar nav .active{color:var(--primary)}
.topbar .login{background:var(--primary);color:#fff;padding:9px 16px;border-radius:8px}
.courses-page{max-width:1200px;margin:auto;padding:70px 22px 90px}
.courses-heading{text-align:center;max-width:760px;margin:0 auto 48px}
.eyebrow{color:#aaa5ff;font-size:11px;font-weight:800;letter-spacing:2px}
.courses-heading h1{font-size:46px;line-height:1.1;color:var(--primary);margin:10px 0 14px}
.courses-heading p{color:var(--muted);font-size:17px}
.course-search{margin-top:25px;width:min(600px,100%);padding:14px 18px;border:1px solid var(--line);border-radius:10px;background:linear-gradient(135deg,#635BFF,#4F46E5);font-size:15px;outline:none}
.course-search:focus,.sidebar input:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(99,91,255,.1)}
.course-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.course-tile{background:#fff;border:1px solid var(--line);border-radius:15px;padding:24px;display:flex;gap:17px;transition:.2s}
.course-tile:hover{transform:translateY(-4px);box-shadow:0 14px 32px rgba(15,23,42,.08);border-color:#d9d6ff}
.tile-icon{flex:0 0 50px;width:50px;height:50px;border-radius:12px;background:#eeecff;color:var(--primary);display:grid;place-items:center;font-weight:800;font-size:14px}
.course-tile h2{font-size:19px;color:var(--dark);margin-bottom:6px}
.course-tile p{font-size:13px;color:var(--muted);margin-bottom:11px}
.learn{font-size:13px;color:var(--primary);font-weight:800}
.course-layout{max-width:1250px;margin:auto;display:grid;grid-template-columns:280px 1fr;gap:28px;padding:30px 22px 80px}
.sidebar{background:#fff;border:1px solid var(--line);border-radius:14px;padding:20px;height:max-content;position:sticky;top:92px}
.sidebar .back{font-size:13px;color:var(--primary);font-weight:700}
.sidebar h3{font-size:19px;color:var(--dark);margin:18px 0 13px}
.sidebar input{width:100%;padding:10px 11px;border:1px solid var(--line);border-radius:8px;outline:none;margin-bottom:12px}
.sidebar ol{padding-left:20px}
.sidebar li{padding:5px 0;font-size:13px}
.sidebar li a:hover{color:var(--primary)}
.course-hero{background:linear-gradient(135deg,#f0efff,#fff);border:1px solid #dfddff;border-radius:17px;padding:38px;margin-bottom:25px}
.course-hero h1{font-size:42px;line-height:1.1;color:var(--dark);margin:8px 0 12px}
.course-hero p{font-size:16px;color:var(--muted);max-width:800px}
.course-meta{display:flex;gap:18px;flex-wrap:wrap;margin-top:20px;font-size:13px;font-weight:700}
.lesson-card{background:#fff;border:1px solid var(--line);border-radius:14px;padding:28px;margin-bottom:18px}
.lesson-number{font-size:10px;letter-spacing:1.5px;color:var(--primary);font-weight:800}
.lesson-card h2{font-size:25px;color:var(--dark);margin:6px 0 8px}
.lesson-card>p{color:var(--muted)}
.example{margin-top:18px;border-left:4px solid var(--primary);background:#f8f7ff;padding:15px 17px;border-radius:0 9px 9px 0}
.example-title{font-weight:800;color:var(--dark);margin-bottom:4px}
.example p{font-size:14px}
.lesson-actions{display:flex;gap:10px;margin-top:18px}
.lesson-actions button{border:0;border-radius:8px;padding:10px 15px;background:var(--primary);color:#fff;font-weight:700;cursor:pointer}
.lesson-actions .outline{background:#fff;color:var(--primary);border:1px solid #cfcaff}
.footer{background:#111827;color:#fff;padding:45px max(22px,calc((100% - 1200px)/2));display:flex;justify-content:space-between;gap:30px}
.footer p{color:#9ca3af;font-size:13px;margin-top:5px}
.footer-links{display:flex;gap:20px;font-size:13px;color:#cbd5e1}
@media(max-width:900px){.course-grid{grid-template-columns:repeat(2,1fr)}.course-layout{grid-template-columns:1fr}.sidebar{position:static}.topbar nav a:not(.login){display:none}}
@media(max-width:600px){.course-grid{grid-template-columns:1fr}.courses-heading h1{font-size:36px}.course-hero h1{font-size:34px}.footer{flex-direction:column}.topbar nav{gap:8px}}