:root{--color-bg: #f8f5ec;--color-surface: #ffffff;--color-surface-alt: #f1ecdd;--color-border: #e3ddc8;--color-primary: #1e4636;--color-primary-dark: #123024;--color-primary-light: #e7efe9;--color-accent: #b98c2e;--color-text: #202822;--color-text-muted: #6f7568;--color-success: #1f9d55;--color-success-bg: #e7f8ee;--color-danger: #b3433a;--color-danger-bg: #fbebe7;--radius-sm: 8px;--radius-md: 14px;--radius-lg: 20px;--shadow-sm: 0 1px 3px rgba(20, 24, 50, .06);--shadow-md: 0 8px 24px rgba(20, 24, 50, .08);--shadow-lg: 0 16px 40px rgba(20, 24, 50, .14);--header-height: 64px;--max-width: 1180px}*{box-sizing:border-box}html,body{direction:rtl;margin:0;padding:0;background:var(--color-bg);color:var(--color-text);scroll-behavior:smooth;min-height:100%}body{font-family:Rubik,Heebo,sans-serif;font-size:16px;line-height:1.6}h1,h2,h3,h4,h5,h6{font-weight:700;line-height:1.35;margin:0 0 .5em}p{margin:0 0 1em}ul,ol{padding-inline-start:1.4em;margin:0 0 1em}a{color:var(--color-primary);text-decoration:none}button{font-family:inherit}.container{max-width:var(--max-width);margin:0 auto;padding:0 20px}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:none;border-radius:var(--radius-sm);padding:11px 22px;font-size:15px;font-weight:600;cursor:pointer;transition:transform .12s ease,box-shadow .12s ease,background-color .12s ease,opacity .12s ease;white-space:nowrap}.btn:active{transform:scale(.97)}.btn:disabled{opacity:.5;cursor:not-allowed;transform:none}.btn-primary{background:var(--color-primary);color:#fff;box-shadow:var(--shadow-sm)}.btn-primary:hover:not(:disabled){background:var(--color-primary-dark)}.btn-ghost{background:transparent;color:var(--color-primary);border:1px solid var(--color-border)}.btn-ghost:hover:not(:disabled){background:var(--color-primary-light)}.btn-danger{background:var(--color-danger-bg);color:var(--color-danger)}.btn-danger:hover:not(:disabled){background:var(--color-danger);color:#fff}.btn-sm{padding:7px 14px;font-size:13px}.btn-block{width:100%}.card{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-md);box-shadow:var(--shadow-sm)}.field{display:flex;flex-direction:column;gap:6px;margin-bottom:16px}.field label{font-size:14px;font-weight:600;color:var(--color-text-muted)}.field input,.field textarea,.field select{font-family:inherit;font-size:15px;padding:10px 14px;border:1px solid var(--color-border);border-radius:var(--radius-sm);background:var(--color-surface);color:var(--color-text);direction:rtl;width:100%}.field textarea{min-height:120px;resize:vertical;font-family:Courier New,monospace;direction:ltr;text-align:left}.field input:focus,.field textarea:focus,.field select:focus{outline:none;border-color:var(--color-primary);box-shadow:0 0 0 3px var(--color-primary-light)}.field-hint{font-size:13px;color:var(--color-text-muted)}.badge{display:inline-flex;align-items:center;gap:4px;padding:3px 10px;border-radius:999px;font-size:12px;font-weight:700}.badge-success{background:var(--color-success-bg);color:var(--color-success)}.badge-muted{background:var(--color-surface-alt);color:var(--color-text-muted)}.progress-bar{width:100%;height:8px;border-radius:999px;background:var(--color-surface-alt);overflow:hidden}.progress-bar>span{display:block;height:100%;background:linear-gradient(90deg,var(--color-primary),var(--color-accent));border-radius:999px;transition:width .3s ease}.alert{padding:12px 16px;border-radius:var(--radius-sm);font-size:14px;margin-bottom:16px}.alert-danger{background:var(--color-danger-bg);color:var(--color-danger)}.alert-success{background:var(--color-success-bg);color:var(--color-success)}@keyframes spin{to{transform:rotate(360deg)}}.spinner{width:34px;height:34px;border:3px solid var(--color-border);border-top-color:var(--color-primary);border-radius:50%;animation:spin .7s linear infinite;margin:40px auto}.lesson-content{font-size:16.5px;line-height:1.85}.lesson-content h3{font-size:19px;color:var(--color-primary-dark);margin-top:1.6em;padding-inline-start:12px;border-inline-start:4px solid var(--color-primary)}.lesson-content h3:first-child{margin-top:0}.lesson-content li{margin-bottom:.4em}.lesson-content strong{color:var(--color-text)}::-webkit-scrollbar{width:10px;height:10px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:#d8d2bd;border-radius:999px}@media (max-width: 720px){.container{padding:0 14px}}