@font-face{font-family:Vazirmatn;src:url(/fonts/Vazirmatn-Regular.woff2) format("woff2");font-weight:400;font-display:swap}@font-face{font-family:Vazirmatn;src:url(/fonts/Vazirmatn-Bold.woff2) format("woff2");font-weight:700;font-display:swap}@media print{body{display:none!important}}:root{--font-family: "Vazirmatn", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;--primary: #2563eb;--primary-hover: #1d4ed8;--primary-light: #dbeafe;--medical-accent: #0ea5e9;--medical-light: #e0f2fe;--bg: #f8fafc;--surface: #ffffff;--surface-elevated: #fefefe;--border: #e2e8f0;--border-light: #f1f5f9;--text: #1e293b;--text-secondary: #475569;--text-muted: #64748b;--text-light: #94a3b8;--danger: #ef4444;--success: #10b981;--radius: 16px;--radius-sm: 8px;--radius-lg: 24px;--shadow-sm: 0 1px 3px rgba(0,0,0,.1);--shadow-md: 0 4px 6px -1px rgba(0,0,0,.1);--shadow-lg: 0 10px 15px -3px rgba(0,0,0,.1);--shadow-xl: 0 20px 25px -5px rgba(0,0,0,.1);--transition: cubic-bezier(.4,0,.2,1)}*,*:before,*:after{box-sizing:border-box;-webkit-user-drag:none}body{margin:0;font:16px/1.7 var(--font-family);background:var(--bg);color:var(--text);direction:rtl;-webkit-font-smoothing:antialiased;scroll-behavior:smooth;user-select:none;-webkit-user-select:none;-moz-user-select:none;-ms-user-select:none}*::-webkit-scrollbar{width:4px}*::-webkit-scrollbar-track{background:var(--bg)}*::-webkit-scrollbar-thumb{background:var(--border);border-radius:4px}*::-webkit-scrollbar-thumb:hover{background:var(--text-muted)}.auth-container{display:flex;align-items:center;justify-content:center;min-height:100vh;padding:24px;background:linear-gradient(135deg,#667eea,#764ba2,var(--medical-accent));position:relative}.auth-container:before{content:"";position:absolute;top:0;right:0;bottom:0;left:0;background:url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><pattern id="grid" width="10" height="10" patternUnits="userSpaceOnUse"><path d="M 10 0 L 0 0 0 10" fill="none" stroke="rgba(255,255,255,0.1)" stroke-width="0.5"/></pattern><rect width="100" height="100" fill="url(%23grid)"/></svg>');opacity:.3}.auth-form{background:var(--surface-elevated);padding:48px;border-radius:var(--radius-lg);box-shadow:var(--shadow-xl);text-align:center;width:100%;max-width:440px;border:1px solid var(--border-light);position:relative}.auth-form h2{margin:0 0 32px;font-size:2.25rem;font-weight:700;color:var(--text);letter-spacing:-.025em}.auth-form input{width:100%;padding:16px 20px;margin-bottom:20px;border:2px solid var(--border);border-radius:var(--radius);font:inherit;background:var(--surface);color:var(--text);transition:all .3s var(--transition);will-change:transform,border-color,box-shadow}.auth-form input::placeholder{color:var(--text-muted)}.auth-form input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 1px var(--primary-light);transform:translate3d(0,-1px,0)}.auth-form button{width:100%;height:56px;border:none;border-radius:var(--radius);background:linear-gradient(135deg,var(--primary),var(--primary-hover));color:#fff;font:600 16px var(--font-family);cursor:pointer;display:flex;align-items:center;justify-content:center;box-shadow:var(--shadow-sm);position:relative;overflow:hidden;transition:all .3s var(--transition);will-change:transform,box-shadow}.auth-form button:before{content:"";position:absolute;top:0;right:0;bottom:0;left:0;background:linear-gradient(90deg,transparent,rgba(255,255,255,.2),transparent);transform:translate3d(-100%,0,0);transition:transform .5s;will-change:transform}.auth-form button:hover:not(:disabled){transform:translate3d(0,-2px,0);box-shadow:var(--shadow-md)}.auth-form button:hover:not(:disabled):before{transform:translate3d(100%,0,0)}.auth-form button:disabled{background:var(--text-light);cursor:not-allowed;transform:none;box-shadow:none}.form-switch{margin-top:24px;font-size:15px;color:var(--text-muted)}.form-switch a{color:var(--primary);text-decoration:none;font-weight:600;transition:color .2s}.form-switch a:hover{color:var(--primary-hover)}.form-error,.form-success{margin-top:16px;font:500 14px var(--font-family);padding:12px 16px;border-radius:var(--radius-sm)}.form-error{color:var(--danger);background:#ef44441a;border:1px solid rgba(239,68,68,.2)}.form-success{color:var(--success);background:#10b9811a;border:1px solid rgba(16,185,129,.2)}.main-layout{display:flex;height:100vh;width:100vw;overflow:hidden;background:var(--bg)}.sidebar{background:var(--surface-elevated);width:320px;padding:0 10px 60px;box-shadow:var(--shadow-lg);display:flex;flex-direction:column;transition:transform .3s var(--transition);will-change:transform;z-index:1000;position:relative}.sidebar:before{content:"";position:absolute;top:0;right:0;width:4px;height:100%;background:linear-gradient(to bottom,var(--primary),var(--medical-accent))}.sidebar-header{text-align:center;position:relative;margin-bottom:1rem;padding-bottom:.1rem;flex-shrink:0}.sidebar-header:after{content:"";position:absolute;bottom:-2px;right:-2.3rem;transform:translate(-50%);width:80px;height:2px;background:linear-gradient(90deg,var(--primary),var(--medical-accent));border-radius:2px}.sidebar-header h1{font-size:2rem;text-align:right;margin:.3rem .5rem 4px 0;font-weight:900;letter-spacing:-.025em;background:linear-gradient(135deg,var(--primary),var(--medical-accent));-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}.sidebar-header p{font:500 14px var(--font-family);color:var(--text-muted);margin:8px 0 0}.course-list{list-style:none;padding:0;margin:0;flex-grow:1;overflow-y:auto}.course-list-title{margin:0 10px;border-radius:10px;border-bottom:2px solid var(--primary-light);font:700 1.25rem var(--font-family);color:var(--text);display:flex;align-items:center;gap:8px;flex-shrink:0}.course-list-title:before{content:"📚";font-size:1.125rem}.course-list-item h3{padding:16px 10px;margin:8px 10px;border-radius:var(--radius);border-right:2px solid var(--primary-light);cursor:pointer;font:600 1.125rem var(--font-family);background:var(--surface);color:var(--text);position:sticky;top:0;z-index:1;transition:all .3s var(--transition);will-change:transform,background,border-color;-webkit-user-select:none;user-select:none;overflow:auto}.course-list-item h3:before{content:"";position:absolute;top:0;right:0;width:4px;height:100%;background:var(--primary);transform:scale3d(1,0,1);transition:transform .3s var(--transition);will-change:transform}.course-list-item h3:hover{background:var(--primary-light);border-color:var(--primary);transform:translate3d(-4px,0,0);box-shadow:var(--shadow-sm)}.course-list-item h3:hover:before{transform:scaleZ(1)}.course-list-item h3.active{background:linear-gradient(135deg,var(--primary),var(--primary-hover));color:#fff!important;box-shadow:var(--shadow-md);border-color:var(--primary-hover)}.course-list-item h3.active:before{background:#fff;transform:scaleZ(1)}.note-list{list-style:none;padding:0 20px;margin:0;max-height:0;overflow:hidden;transition:max-height .4s var(--transition)}.course-list-item.open .note-list{max-height:800px;margin:12px 0}.note-list li{padding:12px 16px;cursor:pointer;border-radius:var(--radius-sm);font-size:14px;color:var(--text-secondary);margin:4px;border:1px solid transparent;background:var(--surface);position:relative;display:flex;align-items:center;gap:8px;transition:all .3s var(--transition);will-change:transform,background,color,border-color;-webkit-user-select:none;user-select:none}.note-list li:before{content:"📄";margin-left:8px;opacity:.7}.note-list li>span:first-child{flex-grow:1;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.note-list li:hover{background:var(--medical-light);color:var(--medical-accent);border-color:var(--medical-accent);transform:translate3d(-2px,0,0);box-shadow:0 1px 2px #0000000d}.note-list li.active-note{background:var(--medical-light);color:var(--medical-accent);font-weight:600;border-color:var(--medical-accent);box-shadow:var(--shadow-sm)}.note-list li.active-note:after{content:"";position:absolute;top:50%;right:6px;transform:translateY(-50%);width:8px;height:8px;background:var(--medical-accent);border-radius:50%}.locked-note{color:var(--text-muted);background:var(--border-light);cursor:not-allowed;opacity:.7}.locked-note:hover{background:var(--border-light);color:var(--text-muted);transform:none;box-shadow:none;border-color:transparent}.lock-icon{font-size:1rem;color:var(--text-light);flex-shrink:0}.logout-button{position:absolute;bottom:10px;left:24px;right:24px;background:var(--danger);color:#fff;border:1px solid var(--border);padding:10px 16px;border-radius:var(--radius);cursor:pointer;font:600 14px var(--font-family);box-shadow:var(--shadow-sm);transition:all .3s var(--transition);will-change:transform,border-color,box-shadow}.logout-button:hover{border-color:var(--danger);transform:translate3d(0,-2px,0);box-shadow:var(--shadow-md)}.content{flex-grow:1;padding:24px;background:var(--bg);position:relative;height:100vh;overflow:hidden}.iframe-container{position:relative;height:100%;overflow:hidden;box-shadow:var(--shadow-xl);background:var(--surface);border:1px solid var(--border-light);border-radius:var(--radius-lg)}.note-iframe{width:100%;height:100%;border:none;background:var(--surface);border-radius:var(--radius-lg)}.placeholder{display:flex;justify-content:center;align-items:center;height:100%;text-align:center;color:var(--text-muted);font:500 1.25rem var(--font-family);flex-direction:column;gap:16px}.placeholder:before{content:"🩺";font-size:4rem;opacity:.3}.fullscreen-btn{position:absolute;top:5px;left:5px;background:#1e293b33;color:#fff;border:none;border-radius:10px;width:35px;height:35px;cursor:pointer;display:flex;align-items:center;justify-content:center;z-index:20;box-shadow:var(--shadow-md);transition:all .3s var(--transition);will-change:transform,background,box-shadow}.fullscreen-btn:hover{background:#1e293b4d;transform:scale3d(1.05,1.05,1);box-shadow:var(--shadow-lg)}.iframe-container:fullscreen{background:var(--surface);border-radius:0}.iframe-container:fullscreen .note-iframe{border-radius:0;height:100vh}.spinner-container{position:absolute;top:0;right:0;bottom:0;left:0;background:#f8fafcf2;display:flex;justify-content:center;align-items:center;z-index:25;flex-direction:column;gap:24px;border-radius:var(--radius-lg)}.spinner{width:56px;height:56px;border:4px solid var(--border);border-top-color:var(--primary);border-radius:50%;animation:spin 1s linear infinite;will-change:transform}.spinner-btn{width:24px;height:24px;border:3px solid rgba(255,255,255,.3);border-top-color:#fff;border-radius:50%;animation:spin 1s linear infinite;will-change:transform}@keyframes spin{to{transform:rotate(360deg)}}.sidebar-open-button,.sidebar-close-button{display:none;position:absolute;background:var(--surface-elevated);border:2px solid var(--border);border-radius:var(--radius);width:50px;height:50px;font-size:1.5rem;cursor:pointer;color:var(--text);box-shadow:var(--shadow-md);align-items:center;justify-content:center;transition:all .3s var(--transition);will-change:transform,background,color,box-shadow}.sidebar-open-button{top:16px;right:16px}.sidebar-close-button{top:5px;left:5px;z-index:1002}.sidebar-open-button:hover,.sidebar-close-button:hover{background:var(--primary);color:#fff;transform:scale3d(1.05,1.05,1);box-shadow:var(--shadow-lg)}.overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#1e293b99;z-index:999;opacity:0;pointer-events:none;transition:opacity .3s ease;will-change:opacity}@supports (backdrop-filter: blur(10px)){.auth-form{-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px)}.fullscreen-btn{-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.spinner-container{-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px)}.sidebar-open-button,.sidebar-close-button{-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.overlay{-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px)}}@media (max-width: 768px){.auth-form{padding:32px;margin:16px;border-radius:var(--radius)}.overlay.open{opacity:1;pointer-events:auto}.auth-form h2{font-size:1.875rem}.sidebar{position:fixed;top:0;right:0;height:100%;width:360px;transform:translate3d(100%,0,0);box-shadow:var(--shadow-xl);z-index:1001}.sidebar.open{transform:translateZ(0)}.sidebar-open-button,.sidebar-close-button{display:flex}.sidebar.open+.content .sidebar-open-button{display:none}.content{padding:80px 16px 16px}.iframe-container{height:calc(100vh - 96px)}.fullscreen-btn{width:44px;height:44px}}@media (max-width: 640px){.auth-form{padding:24px}.sidebar{width:100%}.content{padding:80px 12px 12px}.course-list-item h3{font-size:1rem;padding:14px 18px}.note-list li{font-size:16px;padding:12px 14px}.sidebar-header h1{font-size:1.825rem}}