:root{--bg:#f7f8f5;--surface:#fff;--surface-strong:#fff;--surface-2:#f1f4ef;--text:#1d211d;--muted:#697067;--line:#1e2b251f;--brand:#b45b38;--brand-deep:#793920;--accent:#14756d;--success:#2f7b52;--warning:#a7661c;--info:#32669e;--shadow:0 16px 34px #222c271f, 0 2px 8px #222c270f;--shadow-soft:0 9px 20px #222c2717, 0 1px 4px #222c270d;--radius-xl:16px;--radius-lg:8px;--radius-md:8px}*{box-sizing:border-box}html{scroll-behavior:smooth}body{min-height:100vh;color:var(--text);background:radial-gradient(circle at 12% 8%,#b45b3821,#0000 30%),radial-gradient(circle at 84% 16%,#14756d21,#0000 28%),linear-gradient(#fbfaf6 0%,#f2f6f1 48%,#f7f4ed 100%);margin:0;font-family:IBM Plex Sans Arabic,Noto Sans Arabic,Segoe UI,sans-serif}body:before{content:"";z-index:-1;pointer-events:none;background-image:linear-gradient(#1e2b2507 1px,#0000 1px),linear-gradient(90deg,#1e2b2507 1px,#0000 1px);background-size:42px 42px;position:fixed;inset:0;-webkit-mask-image:linear-gradient(#00000052,#0000 68%);mask-image:linear-gradient(#00000052,#0000 68%)}a{color:inherit;text-decoration:none}button,input,select,textarea{font:inherit}input,select,textarea{width:100%}.page-shell{width:min(1200px,100% - 32px);margin:0 auto;padding:18px 0 56px}.topbar{border:1px solid var(--line);box-shadow:var(--shadow-soft);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);background:linear-gradient(#fffffff5,#fffcf7e0);border-radius:14px;justify-content:space-between;align-items:center;gap:20px;padding:12px 14px;display:flex}.domain-move-banner{color:#21302d;text-align:center;background:#ffffffe0;border:1px solid #1e746b33;border-radius:16px;flex-wrap:wrap;justify-content:center;align-items:center;gap:8px 14px;max-width:1120px;margin:0 auto 16px;padding:12px 16px;display:flex;box-shadow:0 14px 32px #18373114}.domain-move-banner strong{color:#0f766e}.domain-move-banner a{color:#0f766e;font-weight:800}.brand-mark{align-items:center;gap:10px;font-size:1.22rem;font-weight:800;display:inline-flex}.brand-mark:before{content:"";background:linear-gradient(135deg, var(--brand), #d88f47);border-radius:50%;width:12px;height:12px;box-shadow:16px 0 #14756dbf}.brand-copy{color:var(--muted);margin:4px 0 0;font-size:.88rem}.nav-grid{flex-wrap:wrap;gap:10px;display:flex}.nav-link,.pill{border:1px solid var(--line);background:#ffffffc2;border-radius:8px;padding:8px 11px;font-weight:700}.nav-link{cursor:pointer}.nav-link:hover{color:var(--brand-deep);border-color:#a9482f4d}.hero-card{border:1px solid var(--line);color:#fffaf4;background:linear-gradient(120deg,#191714d1,#1c413ed1),linear-gradient(135deg,#b64b2d80,#0b6f6880);border-radius:18px;margin:18px 0;padding:30px;position:relative;overflow:hidden;box-shadow:0 22px 48px #1d292533,inset 0 1px 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h1{font-size:clamp(1.75rem,3vw,2.6rem)}.hero-card--student{background:linear-gradient(120deg,#5b2d1fe6,#b55c23db),linear-gradient(135deg,#f4b14fc7,#137e766b)}.hero-card--teacher{background:linear-gradient(120deg,#251f36e0,#2a5b77db),linear-gradient(135deg,#6952ab80,#38899e94)}.hero-card--admin{background:linear-gradient(120deg,#2b1919e0,#6a332adb),linear-gradient(135deg,#c2452d85,#7c4f3494)}.hero-card--visitor{background:linear-gradient(120deg,#1d282ee0,#26535fdb),linear-gradient(135deg,#3e9cac80,#53719c94)}.hero-card--support{background:linear-gradient(120deg,#2d2718e0,#635523db),linear-gradient(135deg,#d5983185,#75703d94)}.hero-card--submission{background:linear-gradient(120deg,#1f232fe0,#444860db),linear-gradient(135deg,#5b70b280,#53887994)}.hero-card--preview{background:linear-gradient(120deg,#182926e0,#244a3bdb),linear-gradient(135deg,#338f7080,#9476368f)}.hero-card:after{content:"";border:1px solid #fffaf429;border-radius:18px;width:132px;height:132px;position:absolute;inset-block-start:24px;inset-inline-start:24px;transform:rotate(8deg)}.hero-card:before{content:"";pointer-events:none;background:radial-gradient(circle at 18% 18%,#ffffff29,#0000 30%),linear-gradient(#ffffff14,#0000 52%);position:absolute;inset:0}.hero-card h1{z-index:1;margin:10px 0 8px;font-size:clamp(1.9rem,3.6vw,3.2rem);line-height:1.16;position:relative}.hero-card p,.eyebrow{z-index:1;max-width:760px;position:relative}.hero-card p{color:#fffaf4d1;font-size:1rem}.eyebrow{color:#fff2e7;background:#ffffff1f;border:1px solid #fffaf42e;border-radius:999px;padding:6px 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#14756d29;border-radius:10px;padding:14px}.teacher-priority-head{margin-bottom:12px}.teacher-priority-head h2,.teacher-priority-head p{margin:0}.teacher-priority-head p{color:var(--muted);margin-top:4px;font-weight:700}.teacher-action-grid{grid-template-columns:repeat(4,minmax(0,1fr));gap:8px;display:grid}.teacher-action-card{border:1px solid var(--line);background:linear-gradient(#fff,#fbfcfa);border-radius:8px;grid-template-columns:minmax(0,1fr) auto;align-items:center;gap:3px 10px;min-width:0;padding:10px 12px;display:grid;box-shadow:0 3px 10px #222c270a}.teacher-action-card span,.teacher-action-card small{color:var(--muted);font-size:.84rem;font-weight:800}.teacher-action-card strong{color:var(--text);font-size:1.35rem;line-height:1}.teacher-action-card 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td:last-child{width:150px}.metric-row,.file-row,.inline-actions,.meta-row{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px;display:flex}.metric-row+.metric-row,.file-row+.file-row{border-top:1px solid var(--line);margin-top:12px;padding-top:12px}.file-group-list{gap:12px;display:grid}.list-reset.file-group-list li+li{margin-top:0}.file-folder-row{border:1px solid var(--line);background:linear-gradient(#fff,#fbfcfa);border-radius:10px;overflow:hidden;box-shadow:0 6px 18px #222c270f}.file-folder>summary{cursor:pointer;justify-content:space-between;align-items:center;gap:12px;padding:14px;list-style:none;display:flex}.file-folder>summary::-webkit-details-marker{display:none}.file-folder__summary{align-items:center;gap:10px;min-width:0;display:flex}.file-folder__icon{width:34px;height:34px;color:var(--accent);background:#14756d1f;border-radius:8px;flex:none;place-items:center;font-size:.9rem;font-weight:900;display:grid}.file-folder__toggle{color:var(--accent);flex:none;font-size:.84rem;font-weight:900}.file-folder__items{gap:0;padding:0 14px 14px;display:grid}.file-row--nested{padding:12px 0}.file-preview-shell{padding:22px}.file-preview-type{border-top:1px solid var(--line);margin-top:14px;padding-top:14px}.file-preview-frame{border:1px solid 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var(--line);background:linear-gradient(#fff,#fffdfa);border-radius:8px;gap:8px;padding:14px;display:grid;box-shadow:0 5px 14px #222c270f}.role-card strong,.step-card strong{font-size:1.05rem}.role-card span,.step-card p{color:var(--muted);margin:0}.role-student{background:linear-gradient(135deg,#b45b381a,#fff)}.role-teacher{background:linear-gradient(135deg,#14756d1a,#fff)}.role-admin{background:linear-gradient(135deg,#32669e1a,#fff)}.file-stack{margin-top:18px}.primary-button,.secondary-button,.ghost-link{cursor:pointer;border:1px solid #0000;border-radius:8px;justify-content:center;align-items:center;min-height:44px;padding:0 18px;font-weight:800;transition:border-color .2s,box-shadow .2s,transform .2s,background .2s;display:inline-flex}.text-input{border:1px solid var(--line);background:linear-gradient(#fff,#fbfcfa);border-radius:8px;min-height:44px;padding:0 14px;transition:border-color .2s,box-shadow .2s,background .2s;box-shadow:inset 0 1px 2px #222c270a}.text-input:focus{background:#fff;border-color:#0b6f687a;outline:none;box-shadow:0 0 0 3px #14756d1a}.auth-form{grid-template-columns:1fr;align-items:stretch;gap:14px;display:grid}.auth-form label{gap:7px;display:grid}.check-row{color:var(--muted);justify-content:flex-start;align-items:center;font-weight:800;gap:8px!important;display:flex!important}.check-row input{width:auto}.auth-form .primary-button{width:100%}.auth-mode-switch{border:1px solid var(--line);background:#1e2b250a;border-radius:10px;grid-template-columns:repeat(2,minmax(0,1fr));gap:6px;margin-bottom:14px;padding:6px;display:grid}.auth-mode-switch--three{grid-template-columns:repeat(3,minmax(0,1fr))}.auth-mode-option{min-height:42px;color:var(--muted);cursor:pointer;background:0 0;border:0;border-radius:8px;font-weight:900}.auth-mode-option[aria-selected=true]{color:var(--brand-deep);background:#fff;box-shadow:0 8px 18px #222c271a}.signup-step-indicator{color:var(--muted);align-items:center;gap:8px;font-size:.9rem;font-weight:900;display:flex}.signup-step-indicator span{display:inline}.signup-step-indicator span[aria-current=step]{color:var(--brand-deep)}.signup-step-indicator span+span:before{content:"/";color:#697067b3;margin-inline-end:8px}.auth-choice-intro{text-align:center;justify-items:center;gap:4px;margin-bottom:12px;display:grid}.auth-choice-intro span,.auth-choice-kicker,.auth-choice-card small{color:var(--muted);font-weight:800}.auth-choice-intro strong{font-size:1.25rem}.auth-choice-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;display:grid}.auth-choice-card{border:1px solid var(--line);min-height:132px;box-shadow:var(--shadow-soft);cursor:pointer;text-align:center;background:#fff;border-radius:10px;flex-direction:column;justify-content:center;align-items:center;gap:7px;padding:16px;transition:border-color .2s,box-shadow .2s,transform .2s;display:flex}.auth-choice-card:hover{box-shadow:var(--shadow);border-color:#b45b3847;transform:translateY(-1px)}.auth-choice-portrait{background:#ffffffdb;border:1px solid #1e2b251f;border-radius:50%;place-items:center;width:44px;height:44px;font-size:1.45rem;display:inline-grid;box-shadow:0 8px 18px #222c2714}.auth-choice-card strong{color:var(--text);font-size:1.32rem}.auth-choice-card small{line-height:1.6}.auth-choice-card--student{background:linear-gradient(135deg,#b45b381f,#fff)}.auth-choice-card--teacher{background:linear-gradient(135deg,#14756d1f,#fff)}.home-help-card{width:min(860px,100%);margin:14px auto 0;padding:16px}.home-help-card .section-head{margin-bottom:0}.forgot-password-row{color:var(--muted);flex-wrap:wrap;align-items:center;gap:8px;margin:14px 0 0;display:flex}.forgot-password-row .ghost-link{min-height:36px;padding:0 12px}.reset-card{width:min(620px,100%);margin:0 auto}.reset-message{margin-top:14px}.primary-button{background:linear-gradient(135deg, var(--brand), #cf6e39);color:#fffaf6;box-shadow:0 8px 18px #b45b3833}.primary-button:hover,.secondary-button:hover,.ghost-link:hover{transform:translateY(-1px)}.primary-button:hover{box-shadow:0 10px 22px #b45b383d}.secondary-button{border-color:var(--line);background:linear-gradient(#fff,#f8faf6);box-shadow:0 4px 10px #222c270f}.secondary-button:hover{background:#fbfcfa;border-color:#0b6f6847}.danger-card{background:#fff8f6eb;border-color:#9f2d233d}.danger-button{color:#8f2a22;border-color:#9f2d2347}.danger-button:hover{background:#fff1eef5;border-color:#9f2d2370}.ghost-link{color:var(--accent);border-color:#0f6d6733}.table{border-collapse:collapse;width:100%}.table thead{background:linear-gradient(#fbfcfa,#f4f7f2)}.table th,.table td{border-bottom:1px solid var(--line);text-align:right;vertical-align:top;padding:13px 10px}.table tr:last-child td{border-bottom:none}.submission-card h3,.table-card h2,.card h2{margin-top:0}.submission-grid{gap:18px;display:grid}.student-rounds{gap:18px;margin-top:18px;display:grid}.student-round-overview{margin-top:18px}.round-overview-list{grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:10px;display:grid}.round-overview-item{border:1px solid var(--line);background:linear-gradient(180deg, #ffffffa3, #ffffff2e), var(--subject-accent-soft,#0b6f6814);border-radius:8px;gap:4px;min-width:0;padding:12px 14px;display:grid;box-shadow:0 5px 14px #222c270d}.round-overview-item span{color:var(--subject-accent,var(--accent));font-size:.82rem;font-weight:900}.round-overview-item strong,.round-overview-item small{overflow-wrap:anywhere}.round-overview-item small{color:var(--muted);font-weight:700}.student-hero-panel{box-shadow:var(--shadow-soft), inset 0 1px 0 #ffffffc7;background:linear-gradient(135deg,#14756d17,#b45b380f),#fff;border:1px solid #14756d24;border-radius:8px;grid-template-columns:1fr;align-items:stretch;gap:14px;margin-bottom:16px;padding:18px;display:grid}.student-email-card{box-shadow:var(--shadow-soft);background:linear-gradient(135deg,#14756d14,#fffffff5),#fff;border:1px solid #14756d3d;border-radius:8px;grid-template-columns:minmax(180px,.8fr) minmax(260px,1.2fr);align-items:center;gap:12px 16px;margin:12px 0 16px;padding:12px 14px;display:grid}.student-email-card__copy{gap:4px;display:grid}.student-email-card__copy strong{font-size:1rem}.student-email-card__copy span,.student-email-card__message{color:var(--muted);font-size:.9rem;font-weight:700}.student-email-card__form{grid-template-columns:minmax(0,1fr) minmax(0,1fr) auto;align-items:center;gap:8px;display:grid}.student-email-card__form--code{grid-template-columns:minmax(120px,1fr) auto auto}.student-email-card__form .primary-button,.student-email-card__form 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