@import "https://fonts.googleapis.com/css2?family=Tajawal:wght@400;500;700;900&display=swap";
*{box-sizing:border-box;margin:0;padding:0;font-family:Tajawal,sans-serif}:root{--bg-flat:#f8fafc;--primary-blue:#2563eb;--primary-hover:#1d4ed8;--text-main:#0f172a;--text-muted:#475569;--card-white:#fff;--border-line:#e2e8f0}body{background-color:var(--bg-flat);color:var(--text-main);flex-direction:column;min-height:100vh;display:flex}.navbar{background-color:var(--card-white);border-bottom:1px solid var(--border-line);z-index:100;justify-content:space-between;align-items:center;width:100%;height:70px;padding:0 50px;display:flex;position:fixed;top:0}.nav-logo{color:var(--primary-blue);cursor:pointer;align-items:center;gap:10px;font-size:20px;font-weight:900;display:flex}.nav-auth-btn{background-color:var(--primary-blue);color:#fff;cursor:pointer;border:none;border-radius:8px;padding:10px 24px;font-size:14px;font-weight:700;transition:background-color .2s}.nav-auth-btn:hover{background-color:var(--primary-hover)}.user-badge{color:var(--text-muted);font-size:14px;font-weight:700}.hero-container{text-align:center;margin-top:130px;margin-bottom:50px;padding:0 20px}.hero-title{margin-bottom:16px;font-size:36px;font-weight:900}.hero-subtitle{color:var(--text-muted);max-width:600px;margin:0 auto 30px;font-size:18px;line-height:1.6}.course-section{width:100%;max-width:900px;margin:0 auto;padding:0 20px 80px}.section-label{color:var(--primary-blue);text-transform:uppercase;text-align:center;margin-bottom:20px;font-size:14px;font-weight:700;display:block}.course-card{background-color:var(--card-white);border:1px solid var(--border-line);border-radius:16px;padding:35px;box-shadow:0 4px 6px -1px #0000000d}.course-header{border-bottom:1px solid var(--border-line);justify-content:space-between;align-items:flex-start;margin-bottom:20px;padding-bottom:20px;display:flex}.course-title-block h3{margin-bottom:6px;font-size:24px;font-weight:900}.course-badge{color:var(--primary-blue);background-color:#eff6ff;border-radius:20px;padding:6px 14px;font-size:12px;font-weight:700}.course-description{color:var(--text-muted);margin-bottom:25px;font-size:15px;line-height:1.8}.course-action-block{text-align:center;border-top:1px solid var(--border-line);padding-top:25px}.start-btn{background-color:var(--primary-blue);color:#fff;cursor:pointer;border:none;border-radius:10px;padding:14px 40px;font-size:16px;font-weight:700;transition:all .2s;display:inline-block;box-shadow:0 4px 14px #2563f333}.start-btn:hover{background-color:var(--primary-hover);transform:translateY(-1px)}.login-container{flex:1;justify-content:center;align-items:center;margin-top:100px;padding:40px 20px;display:flex}.login-card{background-color:var(--card-white);border:1px solid var(--border-line);border-radius:16px;width:100%;max-width:450px;padding:40px;box-shadow:0 4px 6px -1px #0000000d}.login-card h2{text-align:center;margin-bottom:8px;font-size:24px;font-weight:900}.login-subtitle{color:var(--text-muted);text-align:center;margin-bottom:30px;font-size:14px}.input-group{flex-direction:column;gap:8px;margin-bottom:20px;display:flex}.input-group label{font-size:14px;font-weight:700}.input-group input{border:1px solid var(--border-line);border-radius:8px;outline:none;padding:12px 16px;font-size:14px;transition:border-color .2s}.input-group input:focus{border-color:var(--primary-blue)}.login-submit-btn{background-color:var(--primary-blue);color:#fff;cursor:pointer;border:none;border-radius:8px;width:100%;margin-top:10px;padding:12px;font-size:16px;font-weight:700;transition:background-color .2s}.login-submit-btn:hover{background-color:var(--primary-hover)}.login-footer{text-align:center;color:var(--text-muted);margin-top:20px;font-size:14px}.login-footer a{color:var(--primary-blue);font-weight:500;text-decoration:none}.dashboard-container{width:100%;max-width:1100px;margin-top:100px;margin-left:auto;margin-right:auto;padding:20px}.dash-title{border-right:4px solid var(--primary-blue);margin-bottom:25px;padding-right:12px;font-size:24px;font-weight:900}.course-selector-card{background-color:var(--card-white);border:2px solid var(--border-line);cursor:pointer;border-radius:12px;padding:25px;transition:all .2s}.course-selector-card:hover{border-color:var(--primary-blue);box-shadow:0 4px 12px #2563f314}.course-selector-card h3{margin-bottom:8px}.modules-layout{grid-template-columns:1fr 2fr;align-items:start;gap:20px;display:grid}.modules-list{flex-direction:column;gap:12px;display:flex}.module-item-btn{background-color:var(--card-white);border:1px solid var(--border-line);cursor:pointer;text-align:right;border-radius:10px;justify-content:space-between;align-items:center;width:100%;padding:18px;transition:all .2s;display:flex}.module-item-btn:hover{border-color:var(--text-muted);background-color:#f1f5f9}.disabled-mod{opacity:.6;cursor:not-allowed;background-color:#f1f5f9}.module-details-panel{background-color:var(--card-white);border:1px solid var(--border-line);border-radius:12px;min-height:350px;padding:30px}.placeholder-text{text-align:center;color:var(--text-muted);padding-top:100px}.theory-box{background-color:#f0fdf4;border-right:4px solid #10b981;border-radius:4px 8px 8px 4px;margin:15px 0 25px;padding:15px}.theory-box h5,.chapters-box h5{margin-bottom:8px;font-size:16px;font-weight:700}.theory-box p{color:var(--text-muted);font-size:14px;line-height:1.6}.chapters-list{flex-direction:column;gap:10px;display:flex}.chapter-item{border:1px solid var(--border-line);background-color:var(--bg-flat);border-radius:8px;justify-content:space-between;align-items:center;padding:15px;display:flex}.chapter-sub{color:var(--text-muted);margin-top:4px;font-size:12px}.enter-chap-btn{background-color:var(--primary-blue);color:#fff;cursor:pointer;border:none;border-radius:6px;padding:8px 16px;font-weight:700}.workspace-container{grid-template-columns:2fr 1fr;height:calc(100vh - 70px);margin-top:70px;display:grid}.learning-zone{background-color:var(--bg-flat);flex-direction:column;gap:20px;padding:30px;display:flex;overflow-y:auto}.progress-container{background:var(--card-white);border:1px solid var(--border-line);border-radius:10px;align-items:center;gap:15px;padding:15px;font-weight:700;display:flex}.progress-bar-bg{background-color:#e2e8f0;border-radius:20px;flex:1;overflow:hidden}.progress-bar-fill{color:#fff;text-align:center;background-color:#10b981;padding:3px 0;font-size:12px;font-weight:700;transition:width .3s}.video-box{aspect-ratio:16/9;color:#fff;background-color:#000;border-radius:12px;justify-content:center;align-items:center;font-weight:700;display:flex}.video-mock{cursor:pointer;border:2px dashed #fff;border-radius:8px;padding:20px}.quiz-box{background-color:var(--card-white);border:1px solid var(--border-line);border-radius:12px;padding:25px}.quiz-box h4{color:var(--primary-blue);margin-bottom:10px}.quiz-question{margin-bottom:15px;font-size:16px;font-weight:500}.code-block{color:#f8fafc;text-align:left;white-space:pre;direction:ltr;background-color:#1e293b;border-radius:8px;margin-bottom:15px;padding:15px;font-family:monospace;display:block}.quiz-options{flex-direction:column;gap:10px;margin-bottom:20px;display:flex}.option-item{background:var(--bg-flat);border:1px solid var(--border-line);cursor:pointer;border-radius:8px;align-items:center;gap:10px;padding:12px;display:flex}.verify-btn{color:#fff;cursor:pointer;background-color:#10b981;border:none;border-radius:8px;padding:12px 30px;font-weight:700}.ai-chat-zone{background-color:var(--card-white);border-right:1px solid var(--border-line);flex-direction:column;height:100%;display:flex}.chat-header{color:#fff;text-align:center;background-color:#1e293b;padding:20px;font-weight:700}.chat-messages{flex-direction:column;flex:1;gap:15px;padding:20px;display:flex;overflow-y:auto}.msg{border-radius:8px;max-width:85%;padding:12px;font-size:14px;line-height:1.5}.ai-msg{color:#1e40af;border-right:4px solid var(--primary-blue);background-color:#eff6ff;align-self:flex-start}.user-msg{background-color:var(--primary-blue);color:#fff;align-self:flex-end}.chat-input-area{border-top:1px solid var(--border-line);gap:10px;padding:15px;display:flex}.chat-input-area input{border:1px solid var(--border-line);border-radius:8px;outline:none;flex:1;padding:12px;font-family:Tajawal,sans-serif}.chat-input-area button{background-color:var(--primary-blue);color:#fff;cursor:pointer;border:none;border-radius:8px;padding:0 20px;font-weight:700}