:root{--color-primary: #1d4ed8;--color-primary-contrast: #ffffff;--color-bg: #f3f5f9;--color-card: #ffffff;--color-text: #1b2333;--color-muted: #5b6577;--color-border: #d8deea;--color-error: #b42318;--radius: 12px;--space: 16px;--font-family: "Cairo", system-ui, "Segoe UI", Tahoma, sans-serif;--font-size: 16px}*{box-sizing:border-box}body{margin:0;background:var(--color-bg);color:var(--color-text);font-family:var(--font-family);font-size:var(--font-size);line-height:1.7}h1,h2{margin:0 0 8px}.center-screen{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:var(--space)}.card{background:var(--color-card);border:1px solid var(--color-border);border-radius:var(--radius);padding:calc(var(--space) * 1.5);margin-bottom:var(--space)}.card.narrow{width:100%;max-width:420px;margin-bottom:0}.page{max-width:900px;margin:0 auto;padding:var(--space)}.app-header{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:8px;padding:12px var(--space);background:var(--color-card);border-bottom:1px solid var(--color-border)}.header-actions{display:flex;align-items:center;gap:12px}.brand,.brand-title{color:var(--color-primary)}.muted{color:var(--color-muted)}.error{color:var(--color-error);font-weight:600}label{display:block;margin-top:12px;margin-bottom:4px;font-weight:600}input{width:100%;padding:10px 12px;border:1px solid var(--color-border);border-radius:8px;font:inherit;background:#fff}.inline-check{display:flex;align-items:center;gap:8px;font-weight:400}.inline-check input{width:auto}.btn{margin-top:var(--space);padding:10px 18px;border:0;border-radius:8px;background:var(--color-primary);color:var(--color-primary-contrast);font:inherit;font-weight:600;cursor:pointer}.btn:disabled{opacity:.6;cursor:not-allowed}.btn-outline{margin-top:0;background:transparent;color:var(--color-primary);border:1px solid var(--color-primary)}code{direction:ltr;unicode-bidi:embed;background:var(--color-bg);padding:2px 6px;border-radius:6px}:root{--color-primary: #1f6b4d}.center-text{text-align:center}.small{font-size:.85rem}.pre{white-space:pre-wrap;margin:6px 0}.login-logo{width:100%;height:auto;display:block;margin-bottom:8px}.header-brand{display:flex;align-items:center;gap:10px}.header-logo{width:36px;height:36px;border-radius:8px}select,textarea{width:100%;padding:10px 12px;border:1px solid var(--color-border);border-radius:8px;font:inherit;background:#fff}.avatar{border-radius:50%;object-fit:cover;flex-shrink:0}.avatar-fallback{display:flex;align-items:center;justify-content:center;background:var(--color-primary);color:#fff;font-weight:700}.preview-avatar{width:96px;height:96px;margin-top:8px}.tabs{display:flex;gap:4px;padding:8px var(--space) 0;overflow-x:auto;background:var(--color-card);border-bottom:1px solid var(--color-border)}.tab{border:0;background:transparent;padding:10px 16px;font:inherit;font-weight:600;color:var(--color-muted);cursor:pointer;border-bottom:3px solid transparent;white-space:nowrap}.tab-active{color:var(--color-primary);border-bottom-color:var(--color-primary)}.chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:8px}.chip{border:1px solid var(--color-border);background:#fff;border-radius:999px;padding:6px 14px;font:inherit;cursor:pointer}.chip-active{background:var(--color-primary);color:#fff;border-color:var(--color-primary)}.student-row{display:flex;align-items:center;gap:12px;flex-wrap:wrap}.student-info{flex:1;min-width:160px}.row-actions{display:flex;gap:8px;flex-wrap:wrap}.row-actions .btn{margin-top:0}.notice{background:#e8f5ee;border:1px solid #b7dfc9;padding:10px 14px;border-radius:8px}.badge{display:inline-block;padding:2px 10px;border-radius:999px;font-size:.8rem;font-weight:600}.badge-pending{background:#fff3cd;color:#7a5b00}.badge-approved{background:#d1f0df;color:#14583a}.badge-rejected{background:#fde0dd;color:#8a1f14}.sub-box{border-top:1px dashed var(--color-border);margin-top:10px;padding-top:8px}textarea+.btn{display:block}.modal-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;z-index:1000;background:#0a140fbf;display:flex;align-items:center;justify-content:center;padding:var(--space)}.modal{background:var(--color-card);border-radius:var(--radius);padding:24px;width:100%;max-width:440px;text-align:center;max-height:90vh;overflow:auto}.modal-icon{font-size:3rem}.file-link{display:inline-block;text-decoration:none;margin:8px 0}.plain-list{list-style:none;padding:0;margin:0}.plain-list li{padding:8px 0;border-bottom:1px dashed var(--color-border)}.badge-kind{background:#e3ecf8;color:#1d4e89;margin-bottom:4px}.dot{background:#fff3cd;color:#7a5b00;border-radius:999px;padding:0 8px;font-weight:700}.chip-active .dot{background:#fff;color:var(--color-primary)}.tab-badge{display:inline-block;min-width:20px;margin-inline-start:6px;padding:0 6px;border-radius:999px;background:#d92d20;color:#fff;font-size:.75rem;line-height:20px}.reps{display:flex;flex-wrap:wrap;gap:16px}.rep{display:flex;align-items:center;gap:10px}.info-list{display:grid;grid-template-columns:max-content 1fr;gap:6px 16px;margin:8px 0 12px}.info-list dt{color:var(--color-muted);font-weight:600}.info-list dd{margin:0}.serial-input{max-width:180px}.code-sample{background:var(--color-bg);padding:8px 12px;border-radius:8px;white-space:pre-wrap}.consent{display:flex;gap:8px;align-items:flex-start;font-weight:400;margin-top:12px}.consent input{width:auto;margin-top:6px}.btn-danger{color:#b3261e;border-color:#b3261e}