/* Giao diện chung hệ hobao — nền sáng, chữ rõ, nút có nhãn chữ. Màu nhấn theo site: --nhan đặt ở trang. */
:root{--nen:#f6f8fb;--the:#ffffff;--chu:#1d2a3a;--mo:#5b6b7f;--vien:#dde3ec;--nhan:#3f8f4f;--nhan-chu:#fff;--do:#c8402f;--bong:0 6px 24px rgba(20,40,70,.10);--bo:14px}
*{box-sizing:border-box}
html,body{margin:0;background:var(--nen);color:var(--chu);font:16px/1.5 system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;-webkit-text-size-adjust:100%}
a{color:var(--nhan)}
.nut{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;padding:10px 18px;border-radius:12px;border:1px solid var(--vien);background:var(--the);color:var(--chu);font:inherit;font-weight:600;cursor:pointer;text-decoration:none;-webkit-tap-highlight-color:transparent}
.nut:active{transform:translateY(1px)}
.nut.chinh{background:var(--nhan);border-color:var(--nhan);color:var(--nhan-chu)}
.nut.nho{min-height:36px;padding:6px 12px;font-size:14px}
.nut.do{color:var(--do);border-color:#f0c9c3}
.the{background:var(--the);border:1px solid var(--vien);border-radius:var(--bo);box-shadow:var(--bong);padding:18px}
.o-nhap{width:100%;min-height:44px;padding:10px 12px;border:1px solid var(--vien);border-radius:10px;font:inherit;background:#fff;color:var(--chu)}
label{display:block;font-weight:600;margin:12px 0 6px}
.goi-y{color:var(--mo);font-size:14px}
.loi{color:var(--do);font-weight:600;min-height:1.4em}
.dau-trang{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:12px 16px;background:var(--the);border-bottom:1px solid var(--vien);position:sticky;top:0;z-index:5}
.dau-trang .ten-site{font-weight:800;font-size:18px;color:var(--chu);text-decoration:none;display:flex;align-items:center;gap:10px}
.dau-trang .logo{width:32px;height:32px;border-radius:9px;background:var(--nhan);display:inline-block;box-shadow:inset -6px -6px 0 rgba(0,0,0,.15)}
.khung{max-width:960px;margin:0 auto;padding:16px}
.luoi-site{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:12px}
.chan-trang{color:var(--mo);font-size:14px;text-align:center;padding:24px 16px}

/* ===== màn 3D ===== */
body.man3d{overflow:hidden;position:fixed;inset:0;touch-action:none;-webkit-user-select:none;user-select:none}
#canh{position:fixed;inset:0;display:block;width:100%;height:100%}
.hud{position:fixed;inset:0;pointer-events:none;z-index:2}
.hud > *{pointer-events:auto}
.hud .tren{position:absolute;top:calc(8px + env(safe-area-inset-top));left:8px;right:8px;display:flex;gap:8px;align-items:center;justify-content:space-between;pointer-events:none}
.hud .tren > *{pointer-events:auto}
.phao{background:rgba(255,255,255,.92);border:1px solid var(--vien);border-radius:12px;padding:6px 10px;box-shadow:var(--bong);font-size:14px;font-weight:600}
.tam-ngam{position:absolute;left:50%;top:50%;width:22px;height:22px;margin:-11px 0 0 -11px;pointer-events:none}
.tam-ngam:before,.tam-ngam:after{content:"";position:absolute;background:#fff;box-shadow:0 0 0 1px rgba(0,0,0,.35)}
.tam-ngam:before{left:10px;top:2px;width:2px;height:18px}.tam-ngam:after{top:10px;left:2px;height:2px;width:18px}
.thanh-khoi{position:absolute;left:50%;bottom:calc(10px + env(safe-area-inset-bottom));transform:translateX(-50%);display:flex;gap:4px;padding:5px;background:rgba(255,255,255,.9);border-radius:14px;border:1px solid var(--vien);box-shadow:var(--bong);max-width:calc(100vw - 16px);overflow-x:auto}
.thanh-khoi button{width:44px;height:44px;border-radius:9px;border:2px solid transparent;padding:0;background:#eef2f7 center/34px no-repeat;image-rendering:pixelated;flex:0 0 auto;cursor:pointer}
.thanh-khoi button.chon{border-color:var(--nhan);background-color:#fff}
.nut-cham{position:absolute;display:none;flex-direction:column;gap:10px;right:calc(14px + env(safe-area-inset-right));bottom:calc(76px + env(safe-area-inset-bottom))}
.co-cham .nut-cham{display:flex}
.nut-cham button{width:64px;height:64px;border-radius:50%;border:1px solid var(--vien);background:rgba(255,255,255,.88);font:700 13px system-ui;color:var(--chu);box-shadow:var(--bong)}
.nut-cham button:active{background:#fff;transform:scale(.96)}
.can-dieu-khien{position:absolute;width:120px;height:120px;border-radius:50%;background:rgba(255,255,255,.25);border:2px solid rgba(255,255,255,.7);display:none;pointer-events:none}
.can-dieu-khien i{position:absolute;left:35px;top:35px;width:50px;height:50px;border-radius:50%;background:rgba(255,255,255,.85)}
.bang{position:fixed;left:50%;top:50%;transform:translate(-50%,-50%);width:min(440px,calc(100vw - 32px));max-height:calc(100vh - 80px);overflow:auto;z-index:5;background:#fff;border:1px solid var(--vien);border-radius:16px;box-shadow:0 18px 60px rgba(20,40,70,.25);padding:16px}
.bang h3{margin:0 0 10px;font-size:18px}
.bang .dong{display:flex;align-items:center;justify-content:space-between;gap:8px;padding:8px 0;border-bottom:1px solid #eef1f5}
.luoi-cau{display:grid;grid-template-columns:repeat(2,1fr);gap:8px}
.luoi-cau .nut{min-height:42px;font-size:15px}
.bieu-cam{display:flex;flex-wrap:wrap;gap:6px;margin-top:10px}.bieu-cam .nut{font-size:22px;min-width:48px;padding:6px}
.loi-nhan{position:fixed;left:50%;top:70px;transform:translateX(-50%);background:#fff;border:1px solid var(--vien);border-radius:12px;padding:8px 14px;box-shadow:var(--bong);font-weight:600;z-index:6;max-width:calc(100vw - 32px)}
.huong-dan{position:absolute;left:50%;top:58%;transform:translateX(-50%);text-align:center;font-size:14px}
.man-cho{position:fixed;inset:0;display:flex;align-items:center;justify-content:center;background:var(--nen);z-index:10;padding:16px}
.hud .tren .nut{white-space:nowrap}
@media (max-width:560px){.hud .tren [data-o=ten]{font-size:12px;max-width:34vw;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.hud .tren .nut.nho{padding:6px 9px;font-size:13px}}