/* Nhật Ký Vườn — giao diện ưu tiên điện thoại ngoài nắng: chữ to, nút to, tương phản cao */
:root {
  --xanh: #1A3D1A; --xanh-nhat: #2E6B2E; --la: #4CAF50; --kem: #F4EBD0; --nen: #F7F7F2; --the: #FFFFFF;
  --chu: #1E1E1E; --chu-mo: #5A5A5A; --vien: #DDD9CC; --do: #C62828; --vang: #E6A700; --xam: #ECEAE3;
  --bong: 0 1px 4px rgba(0,0,0,.12);
}
* { box-sizing: border-box; }
html, body { margin: 0; background: var(--nen); color: var(--chu); font: 16px/1.45 -apple-system, "Segoe UI", Roboto, Arial, sans-serif; -webkit-tap-highlight-color: transparent; }
body { padding-bottom: calc(66px + env(safe-area-inset-bottom)); }
.an { display: none !important; }

#dau { position: sticky; top: 0; z-index: 20; display: flex; align-items: center; gap: 8px; padding: calc(8px + env(safe-area-inset-top)) 12px 8px; background: var(--xanh); color: #fff; box-shadow: var(--bong); }
#dau h1 { flex: 1; margin: 0; font-size: 18px; font-weight: 700; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
#nut-lui { background: none; border: 0; color: #fff; font-size: 30px; line-height: 1; padding: 0 8px 4px 0; }
#trang-thai-mang { font-size: 13px; padding: 3px 8px; border-radius: 12px; background: rgba(255,255,255,.18); }
#trang-thai-mang.mat { background: var(--do); }
#trang-thai-mang.cho { background: var(--vang); color: #000; }

#man { padding: 12px; max-width: 900px; margin: 0 auto; }
@media (min-width: 900px) { #man { max-width: 1100px; } }

#chan { position: fixed; bottom: 0; left: 0; right: 0; z-index: 20; display: flex; background: var(--the); border-top: 1px solid var(--vien); padding-bottom: env(safe-area-inset-bottom); }
#chan a { flex: 1; display: flex; flex-direction: column; align-items: center; padding: 8px 0 6px; font-size: 12px; color: var(--chu-mo); text-decoration: none; }
#chan a span { font-size: 22px; line-height: 1.1; }
#chan a.dang { color: var(--xanh); font-weight: 700; }
#chan a.noi span { background: var(--xanh); color: #fff; width: 44px; height: 44px; border-radius: 50%; display: grid; place-items: center; margin-top: -18px; box-shadow: var(--bong); }

h2 { font-size: 20px; margin: 14px 0 8px; color: var(--xanh); }
h3 { font-size: 17px; margin: 12px 0 6px; }
.the { background: var(--the); border-radius: 12px; padding: 12px 14px; margin-bottom: 10px; box-shadow: var(--bong); }
.the.nhan { cursor: pointer; }
.the.nhan:active { background: var(--xam); }
.hang { display: flex; align-items: center; gap: 10px; }
.hang > .gian { flex: 1; }
.mo { color: var(--chu-mo); font-size: 14px; }
.nho { font-size: 13px; }
.to { font-size: 22px; font-weight: 700; }
.luoi2 { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.luoi3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; }
.luoi5 { display: grid; grid-template-columns: repeat(5, 1fr); gap: 6px; }
.luoi-anh { display: grid; grid-template-columns: repeat(auto-fill, minmax(96px, 1fr)); gap: 6px; }
.luoi-anh img, .luoi-anh video { width: 100%; aspect-ratio: 1; object-fit: cover; border-radius: 8px; background: var(--xam); }
.luoi-anh .o { position: relative; }
.luoi-anh .o .nhan-nho { position: absolute; left: 4px; bottom: 4px; background: rgba(0,0,0,.6); color: #fff; font-size: 11px; padding: 1px 6px; border-radius: 8px; }

button, .nut { font: inherit; font-size: 16px; padding: 12px 16px; border-radius: 10px; border: 1px solid var(--vien); background: var(--the); color: var(--chu); cursor: pointer; min-height: 46px; text-decoration: none; display: inline-flex; align-items: center; justify-content: center; gap: 6px; }
button:active, .nut:active { transform: scale(.98); }
.nut-chinh { background: var(--xanh); color: #fff; border-color: var(--xanh); font-weight: 700; }
.nut-phu { background: var(--kem); border-color: var(--kem); color: var(--xanh); font-weight: 600; }
.nut-do { background: var(--do); color: #fff; border-color: var(--do); }
.nut-to { width: 100%; padding: 16px; font-size: 18px; }
.nut-nho { padding: 6px 10px; min-height: 34px; font-size: 14px; }
.nut-o { flex-direction: column; padding: 14px 6px; font-size: 14px; }
.nut-o span { font-size: 26px; }
.chon { display: flex; flex-wrap: wrap; gap: 6px; }
.chon button { padding: 8px 12px; min-height: 40px; font-size: 15px; border-radius: 20px; }
.chon button.dang { background: var(--xanh); color: #fff; border-color: var(--xanh); }
.diem { display: grid; grid-template-columns: repeat(10, 1fr); gap: 4px; }
.diem button { padding: 0; min-height: 44px; font-weight: 700; border-radius: 8px; }
.diem button.dang { color: #fff; border-color: transparent; }

label { display: block; font-size: 14px; color: var(--chu-mo); margin: 10px 0 4px; }
input, select, textarea { font: inherit; font-size: 16px; width: 100%; padding: 11px 12px; border: 1px solid var(--vien); border-radius: 10px; background: var(--the); color: var(--chu); }
textarea { min-height: 80px; resize: vertical; }
input[type=number] { -moz-appearance: textfield; }
.hang-nhap { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.hang-nhap3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 8px; }
details { background: var(--the); border-radius: 12px; padding: 4px 14px; margin-bottom: 10px; box-shadow: var(--bong); }
summary { padding: 10px 0; font-weight: 600; cursor: pointer; color: var(--xanh); }

.tag { display: inline-block; background: var(--kem); color: var(--xanh); font-size: 12px; padding: 2px 8px; border-radius: 10px; margin: 2px 2px 0 0; }
.tag.do { background: #FDE0E0; color: var(--do); }
.tag.vang { background: #FFF3C4; color: #7A5A00; }
.dong { border-left: 3px solid var(--la); padding: 6px 10px; margin: 6px 0; background: var(--the); border-radius: 0 8px 8px 0; }
.dong.do { border-left-color: var(--do); }
.dong.vang { border-left-color: var(--vang); }
.dong.xam { border-left-color: #999; }
.dong.xanh-dam { border-left-color: var(--xanh); }
.dong .ngay { font-size: 12px; color: var(--chu-mo); }
.trong { text-align: center; color: var(--chu-mo); padding: 24px 12px; }
.canh-bao { background: #FFF3C4; border-radius: 10px; padding: 10px 12px; color: #5A4300; margin-bottom: 10px; }
.loi { background: #FDE0E0; border-radius: 10px; padding: 10px 12px; color: var(--do); margin-bottom: 10px; }

#thong-bao { position: fixed; left: 50%; bottom: calc(80px + env(safe-area-inset-bottom)); transform: translateX(-50%); z-index: 50; display: flex; flex-direction: column; gap: 6px; pointer-events: none; }
#thong-bao div { background: #222; color: #fff; padding: 10px 16px; border-radius: 20px; font-size: 15px; box-shadow: var(--bong); animation: hien .2s ease; max-width: 90vw; }
@keyframes hien { from { opacity: 0; transform: translateY(6px); } }

#hop-lon { position: fixed; inset: 0; background: rgba(0,0,0,.92); z-index: 40; display: flex; flex-direction: column; color: #fff; }
#hop-lon .thanh { display: flex; gap: 8px; padding: calc(8px + env(safe-area-inset-top)) 10px 8px; align-items: center; }
#hop-lon .thanh button { background: rgba(255,255,255,.15); color: #fff; border: 0; }
#hop-lon .than { flex: 1; display: grid; place-items: center; overflow: auto; position: relative; }
#hop-lon img, #hop-lon video, #hop-lon canvas { max-width: 100%; max-height: 100%; }
#hop-lon .chan-hop { padding: 10px; display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; }

.so-sanh { position: relative; width: 100%; aspect-ratio: 4/3; background: #000; overflow: hidden; border-radius: 10px; }
.so-sanh img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: contain; }
.so-sanh .nhan-goc { position: absolute; top: 6px; padding: 2px 8px; background: rgba(0,0,0,.6); color: #fff; font-size: 12px; border-radius: 8px; }
.dai-thoi-gian { display: flex; gap: 6px; overflow-x: auto; padding: 6px 0; }
.dai-thoi-gian img { height: 90px; border-radius: 8px; flex: none; border: 2px solid transparent; }
.dai-thoi-gian img.dang { border-color: var(--la); }

video#cam { width: 100%; border-radius: 12px; background: #000; max-height: 60vh; object-fit: cover; }
canvas.bieu-do { width: 100% !important; max-height: 280px; }
table { width: 100%; border-collapse: collapse; font-size: 14px; }
th, td { text-align: left; padding: 6px 4px; border-bottom: 1px solid var(--vien); }
th { color: var(--chu-mo); font-weight: 600; font-size: 13px; }
td.so, th.so { text-align: right; font-variant-numeric: tabular-nums; }
.cuon-ngang { overflow-x: auto; }

.dang-nhap { max-width: 400px; margin: 40px auto; }
.dang-nhap .logo { text-align: center; font-size: 56px; }

/* trang in nhãn QR */
.in-qr { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px; }
@media (min-width: 600px) { .in-qr { grid-template-columns: repeat(3, 1fr); } }
.in-qr .nhan-qr canvas { max-width: 100%; height: auto !important; }
.in-qr .nhan-qr { border: 1px dashed #999; padding: 8px; text-align: center; page-break-inside: avoid; background: #fff; }
.in-qr .nhan-qr img { width: 100%; }
.in-qr .nhan-qr b { display: block; font-size: 18px; }
@media print { #dau, #chan, .khong-in { display: none !important; } body { padding: 0; background: #fff; } #man { max-width: none; padding: 0; } .in-qr { grid-template-columns: repeat(4, 1fr); } }