:root{color:#17202a;background:#f8fafc;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}body{margin:0}.app-shell{min-height:100vh;background:#f8fafc}.hero-band{padding:max(24px,env(safe-area-inset-top)) 20px 24px;background:#0f766e;color:#fff}.eyebrow{margin:0 0 10px;font-size:14px}h1{margin:0;font-size:32px;line-height:1.15}.summary{margin:12px 0 0;color:#d7f5ef}.login-page{min-height:100vh;display:grid;align-items:center;padding:24px;background:#eef6f4}.login-panel{max-width:420px;width:100%;margin:0 auto}label{display:grid;gap:8px;margin:24px 0 14px;font-size:14px}input{min-height:48px;border:1px solid #b8c7c3;border-radius:8px;padding:0 14px;font-size:18px}button{min-height:48px;border:0;border-radius:8px;padding:0 18px;background:#0f766e;color:#fff;font-size:16px;font-weight:650}.page{padding:18px 16px 88px}.hero-band.compact{margin:-18px -16px 18px}.action-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}.home-stat-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px;margin-bottom:16px}.home-metric{display:grid;gap:6px;min-width:0;padding:12px 8px;border:1px solid #d7e2df;border-radius:8px;background:#fff}.home-metric span{color:#60736f;font-size:12px}.home-metric strong{font-size:20px;overflow-wrap:anywhere}.bottom-nav{position:fixed;left:0;right:0;bottom:0;display:grid;grid-template-columns:repeat(5,1fr);gap:4px;padding:8px 8px max(8px,env(safe-area-inset-bottom));background:#fffffff5;border-top:1px solid #d7e2df}.nav-item{min-height:48px;display:grid;justify-items:center;align-content:center;gap:2px;border-radius:8px;background:transparent;color:#42544f;font-size:12px;padding:4px}.nav-item.active{background:#dff4ee;color:#0f766e}select{min-height:48px;border:1px solid #b8c7c3;border-radius:8px;padding:0 12px;font-size:16px;background:#fff}.progress-text{margin:0 0 12px;color:#60736f}.practice-toolbar{display:grid;grid-template-columns:minmax(0,1fr) 112px;gap:10px;margin-bottom:14px}.practice-toolbar label{margin:0}.question-stem{font-size:21px;line-height:1.45;margin-bottom:18px}.options-list{display:grid;gap:10px;margin-bottom:18px}.option-row{display:grid;grid-template-columns:24px 1fr;align-items:start;gap:10px;margin:0;padding:12px;border:1px solid #d7e2df;border-radius:8px;background:#fff;font-size:16px}.option-row input{width:20px;height:20px;min-height:20px;margin:2px 0 0;padding:0}.answer-box{display:grid;gap:8px;padding:14px;border-radius:8px}.answer-box.correct{background:#dff4ee;color:#075e55}.answer-box.wrong{background:#fee2e2;color:#991b1b}.exam-actions{display:grid;grid-template-columns:1fr 1fr;gap:12px}.question-jump-list{display:grid;grid-template-columns:repeat(auto-fill,minmax(40px,1fr));gap:8px;margin-bottom:14px}.jump-button{min-height:40px;padding:0;background:#e6f2ef;color:#0f766e}.jump-button.active{background:#0f766e;color:#fff}.result-page{display:grid;align-content:start;gap:14px;min-height:calc(100vh - 120px)}.review-section h2{margin:0 0 10px;font-size:20px}.review-list{display:grid;gap:10px}.review-item{display:grid;gap:8px;padding:12px;border:1px solid #d7e2df;border-radius:8px;background:#fff}.review-item h3,.review-item p{margin:0;overflow-wrap:anywhere}.stat-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}.metric{display:grid;gap:8px;padding:14px;border:1px solid #d7e2df;border-radius:8px;background:#fff}.metric span{color:#60736f;font-size:13px}.metric strong{font-size:24px}.exam-list{display:grid;gap:10px}.exam-row{display:flex;justify-content:space-between;padding:12px;border-radius:8px;background:#fff;border:1px solid #d7e2df}.secondary-button{background:#e6f2ef;color:#0f766e}.practice-actions{display:grid;gap:12px}