@charset "UTF-8";
:root{color-scheme:light;--bg:#f3f7f7;--surface:#fff;--surface-2:#eaf1f1;--surface-3:#dfe9e9;--text:#172c37;--muted:#60727b;--line:#d9e4e5;--brand:#087f78;--brand-2:#0b625e;--brand-soft:#dcf3ee;--accent:#eab86d;--danger:#b84848;--success:#16805f;--shadow:0 10px 30px rgba(25,55,65,.07);--radius:18px;--radius-sm:12px;--mono:ui-monospace,SFMono-Regular,Consolas,"Liberation Mono",monospace;font-family:Arial,"Noto Sans Arabic",Tahoma,sans-serif;font-synthesis:none;text-rendering:optimizeLegibility}
:root[data-theme="dark"]{color-scheme:dark;--bg:#111b22;--surface:#1a2831;--surface-2:#22343d;--surface-3:#30434c;--text:#edf5f4;--muted:#a4b4b8;--line:#344951;--brand:#4fc3b5;--brand-2:#7be0d0;--brand-soft:#1a423f;--accent:#f1c37c;--danger:#ff8a85;--success:#69d6a9;--shadow:0 12px 32px rgba(0,0,0,.2)}
*{box-sizing:border-box}html{min-width:320px;scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text);font-size:15px;line-height:1.65}button,input,textarea,select{font:inherit}button,a{ -webkit-tap-highlight-color:transparent}button{color:inherit}a{color:inherit;text-decoration:none}button:focus-visible,a:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{outline:3px solid color-mix(in srgb,var(--brand) 62%,transparent);outline-offset:3px}.skip-link{position:absolute;inset-block-start:-100px;inset-inline-start:16px;background:var(--surface);padding:10px 14px;z-index:100;border-radius:8px}.skip-link:focus{inset-block-start:12px}
.app-shell{min-height:100vh}.boot-screen{min-height:100vh;display:grid;place-content:center;justify-items:center;color:var(--muted)}.brand-mark{width:48px;height:48px;border-radius:15px;background:var(--brand);color:white;display:grid;place-items:center;position:relative;font-weight:800;letter-spacing:-1px;direction:ltr}.brand-mark i{position:absolute;width:13px;height:13px;border:2px solid var(--accent);border-radius:2px;right:4px;bottom:4px;transform:rotate(45deg)}
.app-layout{min-height:100vh;display:grid;grid-template-columns:260px minmax(0,1fr);direction:ltr}.app-layout[dir="rtl"]{grid-template-columns:minmax(0,1fr) 260px}.sidebar{grid-column:1;grid-row:1;background:var(--surface);border-inline-end:1px solid var(--line);padding:22px 16px;display:flex;flex-direction:column;gap:22px;direction:inherit;min-height:100vh;position:sticky;top:0;height:100vh;overflow:auto}.app-layout[dir="rtl"] .sidebar{grid-column:2;direction:rtl}.main-area{grid-column:2;grid-row:1;min-width:0;direction:inherit}.app-layout[dir="rtl"] .main-area{grid-column:1;direction:rtl}.brand-lockup{display:flex;align-items:center;gap:12px;padding:4px 6px 12px}.brand-lockup .brand-mark{flex:none;width:42px;height:42px;border-radius:13px}.brand-name{font-weight:800;line-height:1.25;font-size:14px;letter-spacing:-.2px}.brand-sub{display:block;font-size:11px;color:var(--muted);font-weight:500;margin-top:4px}.nav-group-title{color:var(--muted);font-size:10px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;padding:0 11px;margin:8px 0 4px}.side-nav{display:grid;gap:4px}.nav-link{border:0;background:transparent;display:flex;align-items:center;gap:11px;padding:10px 12px;border-radius:11px;text-align:start;color:var(--muted);font-weight:600;cursor:pointer;transition:background .18s,color .18s,transform .18s}.nav-link:hover{background:var(--surface-2);color:var(--text)}.nav-link.active{background:var(--brand-soft);color:var(--brand-2)}.nav-icon{width:20px;text-align:center;font-size:17px;line-height:1}.sidebar-bottom{margin-top:auto;border-top:1px solid var(--line);padding-top:15px;display:grid;gap:8px}.small-identity{font-size:11px;color:var(--muted);padding:7px 10px;line-height:1.5}.topbar{height:74px;display:flex;align-items:center;justify-content:space-between;gap:12px;padding:0 clamp(16px,3vw,36px);border-bottom:1px solid var(--line);background:color-mix(in srgb,var(--bg) 92%,transparent);position:sticky;top:0;z-index:10;backdrop-filter:blur(12px)}.topbar-title{font-size:14px;font-weight:700}.topbar-tools{display:flex;align-items:center;gap:8px}.tool-button,.icon-button{border:1px solid var(--line);background:var(--surface);border-radius:11px;min-height:39px;padding:7px 11px;display:inline-flex;gap:8px;align-items:center;justify-content:center;cursor:pointer;font-size:13px;font-weight:700;transition:border .18s,transform .18s,background .18s}.tool-button:hover,.icon-button:hover{border-color:var(--brand);transform:translateY(-1px)}.icon-button{width:40px;padding:0;font-size:17px}.menu-toggle{display:none}.page-content{max-width:1320px;margin:0 auto;padding:clamp(18px,3vw,36px);direction:inherit}.page-heading{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin:0 0 24px}.eyebrow{color:var(--brand);font-size:11px;font-weight:800;letter-spacing:.08em;text-transform:uppercase;margin:0 0 7px}.page-heading h1,.hero-copy h1{font-size:clamp(25px,3vw,38px);line-height:1.2;letter-spacing:-.035em;margin:0}.page-heading p{color:var(--muted);margin:8px 0 0;max-width:690px}.hero-panel{position:relative;overflow:hidden;background:linear-gradient(120deg,var(--surface),var(--brand-soft));border:1px solid var(--line);border-radius:24px;padding:clamp(22px,4vw,48px);box-shadow:var(--shadow);display:grid;grid-template-columns:minmax(0,1.35fr) minmax(220px,.65fr);gap:25px;align-items:center}.hero-copy{max-width:700px}.hero-copy h1{max-width:650px}.hero-copy p{color:var(--muted);font-size:16px;max-width:600px;margin:16px 0 22px}.hero-mark-art{min-height:190px;display:grid;place-items:center;position:relative;direction:ltr}.orbit{width:174px;height:174px;border:1px solid color-mix(in srgb,var(--brand) 33%,transparent);border-radius:50%;display:grid;place-items:center;position:relative}.orbit:before,.orbit:after{content:"";position:absolute;border:1px solid color-mix(in srgb,var(--brand) 22%,transparent);border-radius:50%}.orbit:before{inset:20px}.orbit:after{inset:43px}.orbit-core{width:72px;height:72px;border-radius:24px;background:var(--brand);display:grid;place-items:center;color:white;font-weight:800;font-size:22px;box-shadow:0 12px 30px color-mix(in srgb,var(--brand) 30%,transparent)}.orbit-dot{position:absolute;width:13px;height:13px;background:var(--accent);border-radius:50%;top:22px;right:21px;box-shadow:0 0 0 6px color-mix(in srgb,var(--accent) 16%,transparent)}.hero-meta{display:flex;align-items:center;gap:12px;color:var(--muted);font-size:12px;flex-wrap:wrap}.hero-meta strong{color:var(--text)}.status-pill,.tag{border-radius:99px;padding:5px 10px;background:var(--surface);color:var(--brand-2);font-size:11px;font-weight:700;border:1px solid var(--line);display:inline-flex;align-items:center;gap:6px}.status-pill.warning{color:#9a6217;background:color-mix(in srgb,var(--accent) 18%,var(--surface));border-color:color-mix(in srgb,var(--accent) 45%,var(--line))}.btn{border:0;border-radius:11px;background:var(--brand);color:white;padding:11px 16px;display:inline-flex;align-items:center;justify-content:center;gap:8px;font-weight:700;font-size:13px;cursor:pointer;transition:transform .18s,filter .18s}.btn:hover{transform:translateY(-1px);filter:brightness(1.04)}.btn.secondary{background:var(--surface);color:var(--text);border:1px solid var(--line)}.btn.ghost{background:transparent;color:var(--brand-2);border:1px solid var(--line)}.btn.danger{background:var(--danger)}.btn:disabled{opacity:.52;cursor:not-allowed;transform:none}.button-row{display:flex;align-items:center;gap:10px;flex-wrap:wrap}.section-block{margin-top:28px}.section-heading{display:flex;align-items:center;justify-content:space-between;gap:12px;margin:0 0 15px}.section-heading h2{margin:0;font-size:18px;letter-spacing:-.02em}.section-heading p{margin:4px 0 0;font-size:12px;color:var(--muted)}.text-link{color:var(--brand);font-weight:700;font-size:12px;background:none;border:0;cursor:pointer}.stat-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px}.stat-card,.panel,.unit-card,.lesson-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}.stat-card{padding:18px;min-height:122px}.stat-label{color:var(--muted);font-size:12px;font-weight:600}.stat-value{font-size:29px;line-height:1.15;font-weight:800;margin:10px 0 4px;letter-spacing:-.05em}.stat-caption{font-size:11px;color:var(--muted)}.stat-icon{width:34px;height:34px;border-radius:11px;background:var(--brand-soft);color:var(--brand-2);display:grid;place-items:center;font-size:16px;float:inline-end}.content-grid{display:grid;grid-template-columns:minmax(0,1.25fr) minmax(260px,.75fr);gap:16px}.panel{padding:20px}.panel-head{display:flex;justify-content:space-between;align-items:flex-start;gap:12px;margin-bottom:16px}.panel-head h2,.panel-head h3{margin:0;font-size:16px}.panel-head p{margin:5px 0 0;color:var(--muted);font-size:12px}.progress-row{display:grid;grid-template-columns:1fr auto;gap:8px 12px;align-items:center;margin:15px 0}.progress-label{font-size:12px;font-weight:700}.progress-value{font-size:11px;color:var(--muted);direction:ltr;text-align:end}.progress-track{height:8px;border-radius:99px;background:var(--surface-2);overflow:hidden;grid-column:1/-1}.progress-fill{height:100%;background:linear-gradient(90deg,var(--brand),color-mix(in srgb,var(--brand) 52%,var(--accent)));border-radius:99px;transition:width .45s}.unit-list,.lesson-list{display:grid;gap:11px}.unit-card{padding:17px;display:grid;grid-template-columns:auto minmax(0,1fr) auto;align-items:center;gap:14px;cursor:pointer;transition:transform .18s,border-color .18s}.unit-card:hover,.lesson-card:hover{transform:translateY(-2px);border-color:color-mix(in srgb,var(--brand) 50%,var(--line))}.unit-number{width:42px;height:42px;border-radius:14px;background:var(--brand-soft);color:var(--brand-2);display:grid;place-items:center;font-weight:800;direction:ltr}.unit-card h3,.lesson-card h3{margin:0;font-size:14px}.unit-card p,.lesson-card p{margin:4px 0 0;color:var(--muted);font-size:12px}.unit-meta{color:var(--muted);font-size:11px;text-align:end}.lesson-card{padding:16px;display:flex;justify-content:space-between;align-items:center;gap:15px;cursor:pointer;transition:transform .18s,border-color .18s}.lesson-card-main{display:flex;align-items:center;gap:13px;min-width:0}.lesson-status{width:33px;height:33px;border-radius:50%;border:1px solid var(--line);display:grid;place-items:center;color:var(--muted);flex:none}.lesson-status.done{background:var(--brand-soft);color:var(--brand);border-color:transparent}.muted{color:var(--muted)}.empty-state{padding:27px;border:1px dashed var(--line);border-radius:var(--radius);text-align:center;color:var(--muted);background:color-mix(in srgb,var(--surface) 65%,transparent)}.empty-state strong{display:block;color:var(--text);margin-bottom:5px}.notice{border:1px solid color-mix(in srgb,var(--accent) 52%,var(--line));background:color-mix(in srgb,var(--accent) 13%,var(--surface));border-radius:13px;padding:13px 15px;color:var(--text);font-size:12px;line-height:1.55}.notice strong{display:block;margin-bottom:3px}.callout{border-inline-start:4px solid var(--brand);padding:13px 15px;background:var(--surface-2);border-radius:9px;color:var(--muted)}.lesson-layout{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(300px,.9fr);gap:18px;align-items:start}.lesson-body{display:grid;gap:16px}.lesson-body h2{font-size:19px;margin:0}.lesson-body h3{font-size:15px;margin:0 0 7px}.lesson-body p{margin:0 0 10px}.lesson-section{padding:19px;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius)}.objective-list{padding-inline-start:22px;margin:8px 0 0}.objective-list li{margin:6px 0}.vocab-item{display:flex;justify-content:space-between;gap:12px;padding:10px 0;border-bottom:1px solid var(--line)}.vocab-item:last-child{border-bottom:0}.vocab-term{font-weight:700}.vocab-en{color:var(--muted);direction:ltr;text-align:end}.code-card{border:1px solid var(--line);border-radius:16px;background:var(--surface);overflow:hidden;box-shadow:var(--shadow)}.code-card-header{padding:14px 16px;display:flex;align-items:center;justify-content:space-between;gap:12px;border-bottom:1px solid var(--line)}.code-card-header h2{font-size:15px;margin:0}.code-tabs{display:flex;gap:5px;padding:9px 11px;border-bottom:1px solid var(--line);background:var(--surface-2);overflow:auto;direction:ltr}.code-tab{border:0;background:transparent;padding:7px 11px;border-radius:8px;color:var(--muted);font-size:12px;font-weight:700;cursor:pointer}.code-tab.active{background:var(--surface);color:var(--brand-2);box-shadow:0 1px 4px rgba(0,0,0,.08)}.editor-wrap{display:grid;grid-template-columns:42px minmax(0,1fr);direction:ltr;background:#12212a;min-height:220px;max-height:430px;overflow:hidden}.line-numbers{overflow:hidden;background:#182a33;color:#7d939b;text-align:right;padding:14px 9px;font:12px/1.65 var(--mono);user-select:none;white-space:pre}.editor-layer{position:relative;overflow:hidden;min-width:0}.code-highlight,.code-input{position:absolute;inset:0;width:100%;height:100%;margin:0;padding:14px 16px;border:0;white-space:pre;tab-size:2;overflow:auto;font:12px/1.65 var(--mono);letter-spacing:0;direction:ltr;text-align:left}.code-highlight{pointer-events:none;color:#dcebf0}.code-input{resize:none;background:transparent;color:transparent;-webkit-text-fill-color:transparent;caret-color:#fff;outline:0!important;z-index:1}.code-input::selection{background:rgba(57,174,158,.45)}.tok-tag{color:#77d9c2}.tok-attr{color:#f2c47c}.tok-string{color:#a6d98a}.tok-comment{color:#82969e}.tok-key{color:#95b9ff}.tok-number{color:#edabbe}.code-toolbar{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:11px;border-top:1px solid var(--line);flex-wrap:wrap}.code-toolbar .button-row{gap:7px}.code-toolbar .btn{padding:8px 11px;font-size:11px}.live-output{padding:13px;background:var(--surface-2);border-top:1px solid var(--line)}.output-title{font-size:11px;color:var(--muted);font-weight:800;margin:0 0 8px;display:flex;justify-content:space-between}.preview-frame{width:100%;height:210px;border:1px solid var(--line);border-radius:10px;background:white;display:block}.console-output{font:11px/1.5 var(--mono);color:var(--danger);white-space:pre-wrap;min-height:0}.quiz-box{display:grid;gap:14px}.quiz-progress{height:5px;border-radius:99px;background:var(--surface-2);overflow:hidden}.quiz-progress span{height:100%;display:block;background:var(--brand);transition:width .25s}.question-card{padding:17px;border:1px solid var(--line);border-radius:14px;background:var(--surface)}.question-card h3{font-size:15px;margin:0 0 12px}.answer-list{display:grid;gap:8px}.answer-option{display:flex;align-items:flex-start;gap:10px;border:1px solid var(--line);border-radius:11px;padding:10px 12px;cursor:pointer;background:var(--surface);transition:border .15s,background .15s}.answer-option:hover{border-color:var(--brand)}.answer-option input{margin-top:5px;accent-color:var(--brand)}.feedback-correct{color:var(--success);font-weight:700}.feedback-wrong{color:var(--danger);font-weight:700}.form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.field{display:grid;gap:6px}.field label{font-size:12px;font-weight:700}.field input,.field textarea,.field select{background:var(--surface);border:1px solid var(--line);border-radius:10px;padding:10px 12px;color:var(--text);width:100%}.field textarea{min-height:120px;resize:vertical}.tutor-thread{display:grid;gap:12px;max-height:55vh;overflow:auto;padding:5px}.chat-message{max-width:83%;padding:12px 14px;border-radius:15px;background:var(--surface-2);white-space:pre-wrap}.chat-message.user{margin-inline-start:auto;background:var(--brand);color:white;border-end-end-radius:4px}.chat-message.assistant{margin-inline-end:auto;border-end-start-radius:4px}.chat-form{display:grid;grid-template-columns:1fr auto;gap:9px;margin-top:13px}.chat-form textarea{min-height:48px;max-height:140px}.achievement-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:13px}.badge-card{padding:18px;background:var(--surface);border:1px solid var(--line);border-radius:16px;text-align:center}.badge-icon{width:48px;height:48px;margin:0 auto 10px;border-radius:16px;background:var(--brand-soft);color:var(--brand-2);display:grid;place-items:center;font-size:21px}.badge-card h3{font-size:13px;margin:0}.badge-card p{font-size:11px;color:var(--muted);margin:5px 0 0}.table-wrap{overflow:auto}.data-table{width:100%;border-collapse:collapse;font-size:12px}.data-table th,.data-table td{padding:12px 10px;border-bottom:1px solid var(--line);text-align:start}.data-table th{color:var(--muted);font-weight:700}.mobile-bottom-nav{display:none}.mobile-nav-backdrop{display:none}.footer-note{margin:30px 0 0;padding-top:16px;border-top:1px solid var(--line);font-size:11px;color:var(--muted);line-height:1.6}.footer-note a{color:var(--brand);text-decoration:underline;text-underline-offset:3px}.language-switch{direction:ltr}.sample-flag{display:inline-flex;align-items:center;gap:6px;color:#895c17;background:color-mix(in srgb,var(--accent) 18%,var(--surface));border:1px solid color-mix(in srgb,var(--accent) 50%,var(--line));padding:5px 9px;border-radius:99px;font-size:10px;font-weight:800}.page-loader{min-height:180px;display:grid;place-items:center;color:var(--muted)}.admin-lock{max-width:620px;margin:35px auto}.admin-lock .brand-mark{margin:0 auto 18px}.settings-row{display:flex;justify-content:space-between;align-items:center;gap:20px;padding:15px 0;border-bottom:1px solid var(--line)}.settings-row:last-child{border-bottom:0}.settings-row h3{font-size:13px;margin:0}.settings-row p{font-size:11px;color:var(--muted);margin:3px 0 0}.switch{appearance:none;width:44px;height:25px;border-radius:99px;background:var(--surface-3);position:relative;cursor:pointer;transition:background .18s}.switch:checked{background:var(--brand)}.switch:before{content:"";position:absolute;width:19px;height:19px;top:3px;left:3px;border-radius:50%;background:white;transition:transform .18s}.switch:checked:before{transform:translateX(19px)}.toast-region{position:fixed;z-index:50;bottom:20px;inset-inline-end:20px;display:grid;gap:8px}.toast{padding:11px 14px;border-radius:12px;background:var(--text);color:var(--bg);box-shadow:var(--shadow);font-size:12px;max-width:min(360px,calc(100vw - 40px));animation:toast-in .18s ease-out}@keyframes toast-in{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}.mobile-only{display:none}.hidden{display:none!important}
@media(max-width:1050px){.app-layout,.app-layout[dir="rtl"]{grid-template-columns:220px minmax(0,1fr)}.sidebar{padding-inline:12px}.stat-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.content-grid{grid-template-columns:minmax(0,1fr)}.hero-panel{grid-template-columns:minmax(0,1.2fr) minmax(180px,.8fr)}}
@media(max-width:760px){.app-layout,.app-layout[dir="rtl"]{display:block}.app-layout.menu-open+.mobile-nav-backdrop{display:block;position:fixed;inset:64px 0 0;z-index:25;border:0;background:rgba(8,18,24,.42);backdrop-filter:blur(2px)}.sidebar,.app-layout[dir="rtl"] .sidebar{position:fixed;inset-block:0;inset-inline-start:0;width:min(290px,86vw);height:100dvh;z-index:30;transform:translateX(-105%);box-shadow:var(--shadow);transition:transform .22s ease}.app-layout[dir="rtl"] .sidebar{transform:translateX(105%)}.app-layout.menu-open .sidebar{transform:translateX(0)}.app-layout[dir="rtl"].menu-open .sidebar{transform:translateX(0)}.main-area,.app-layout[dir="rtl"] .main-area{display:block}.menu-toggle{display:inline-flex}.topbar{height:64px;padding:0 14px}.topbar-title{display:none}.topbar-tools{gap:6px}.tool-button{min-height:36px;padding:6px 9px;font-size:11px}.icon-button{width:37px;min-height:37px}.page-content{padding:18px 14px 90px}.hero-panel{grid-template-columns:minmax(0,1fr);padding:23px}.hero-mark-art{min-height:140px;grid-row:1}.hero-copy h1{font-size:28px}.hero-copy p{font-size:14px}.page-heading{align-items:flex-start;flex-direction:column}.stat-grid{gap:9px}.stat-card{padding:13px;min-height:105px}.stat-value{font-size:25px}.content-grid{gap:12px}.lesson-layout{display:flex;flex-direction:column;min-width:0}.lesson-layout>article,.lesson-layout>aside{width:100%;min-width:0}.achievement-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.mobile-bottom-nav{display:grid;position:fixed;z-index:20;bottom:0;inset-inline:0;background:color-mix(in srgb,var(--surface) 95%,transparent);backdrop-filter:blur(12px);border-top:1px solid var(--line);grid-template-columns:repeat(4,1fr);padding:7px max(8px,env(safe-area-inset-left)) max(7px,env(safe-area-inset-bottom));gap:3px}.mobile-bottom-nav button{border:0;background:transparent;color:var(--muted);display:grid;justify-items:center;gap:2px;padding:5px 2px;font-size:9px;font-weight:700;cursor:pointer;border-radius:9px}.mobile-bottom-nav button.active{background:var(--brand-soft);color:var(--brand-2)}.mobile-bottom-nav .nav-icon{font-size:17px}.form-grid{grid-template-columns:1fr}.code-card-header{align-items:flex-start;flex-direction:column}.editor-wrap{min-height:190px;max-height:340px}.code-toolbar{align-items:flex-start}.preview-frame{height:190px}.hero-meta{gap:8px}.unit-card{grid-template-columns:auto minmax(0,1fr)}.unit-meta{grid-column:2;text-align:start}.footer-note{margin-top:20px}.mobile-only{display:inline-flex}}
@media(max-width:420px){.topbar-tools .language-switch span{display:none}.topbar-tools .tool-button{padding:7px}.stat-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.achievement-grid{grid-template-columns:1fr 1fr}.chat-form{grid-template-columns:1fr}.chat-form .btn{width:100%}.orbit{width:145px;height:145px}.orbit-core{width:62px;height:62px}.unit-card{padding:13px}.page-heading h1{font-size:26px}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{scroll-behavior:auto!important;animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}}