/* ============================================================
   TOOLS HUB — hệ giao diện dùng chung cho mọi tool
   Sửa file này = đổi giao diện toàn bộ khu tool.
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Be+Vietnam+Pro:wght@400;500;600;700&display=swap');

:root {
  --xanh:        #1f6f43;
  --xanh-dam:    #185735;
  --xanh-nhat:   #e8f2ec;
  --vien:        #e3e1da;
  --nen:         #f7f6f2;
  --the:         #ffffff;
  --chu:         #22251f;
  --chu-mo:      #6b6f66;
  --do:          #b3261e;
  --do-nhat:     #fdecea;
  --vang:        #8a6d1f;
  --vang-nhat:   #fdf6e3;
  --bo-goc:      14px;
  --bong:        0 1px 2px rgba(34,37,31,.05), 0 4px 16px rgba(34,37,31,.05);
  --bong-noi:    0 2px 6px rgba(34,37,31,.07), 0 12px 32px rgba(34,37,31,.09);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: 'Be Vietnam Pro', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--nen);
  color: var(--chu);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

/* ── Thanh trên ─────────────────────────────────────────── */
.thanh-tren {
  background: var(--the);
  border-bottom: 1px solid var(--vien);
  padding: 0 24px;
  height: 64px;
  display: flex;
  align-items: center;
  gap: 16px;
  position: sticky;
  top: 0;
  z-index: 50;
}
.thanh-tren .logo {
  font-weight: 700;
  font-size: 17px;
  color: var(--xanh);
  display: flex;
  align-items: center;
  gap: 9px;
  text-decoration: none;
  letter-spacing: -.01em;
}
.thanh-tren .logo svg { flex: none; }
.thanh-tren .day { flex: 1; }
.thanh-tren .email {
  font-size: 13.5px;
  color: var(--chu-mo);
  max-width: 220px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* ── Khung nội dung ─────────────────────────────────────── */
.khung {
  max-width: 1080px;
  margin: 0 auto;
  padding: 32px 24px 64px;
}
.khung-hep { max-width: 420px; }

h1 { font-size: 26px; font-weight: 700; margin: 0 0 6px; letter-spacing: -.02em; }
h2 { font-size: 18px; font-weight: 600; margin: 0 0 4px; letter-spacing: -.01em; }
.phu { color: var(--chu-mo); font-size: 14.5px; margin: 0 0 28px; }

/* ── Nút ────────────────────────────────────────────────── */
.nut {
  font-family: inherit;
  font-size: 14.5px;
  font-weight: 600;
  padding: 10px 18px;
  border-radius: 10px;
  border: 1px solid transparent;
  background: var(--xanh);
  color: #fff;
  cursor: pointer;
  transition: background .15s, border-color .15s, opacity .15s;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  text-decoration: none;
  white-space: nowrap;
}
.nut:hover:not(:disabled) { background: var(--xanh-dam); }
.nut:disabled { opacity: .45; cursor: not-allowed; }
.nut.phu-2 {
  background: var(--the);
  color: var(--chu);
  border-color: var(--vien);
}
.nut.phu-2:hover:not(:disabled) { background: var(--nen); border-color: #cfccc2; }
.nut.nho { padding: 7px 13px; font-size: 13px; border-radius: 9px; }
.nut.rong { width: 100%; }

/* ── Ô nhập ─────────────────────────────────────────────── */
.o-nhap {
  width: 100%;
  font-family: inherit;
  font-size: 15px;
  padding: 11px 14px;
  border: 1px solid var(--vien);
  border-radius: 10px;
  background: var(--the);
  color: var(--chu);
  transition: border-color .15s, box-shadow .15s;
}
.o-nhap:focus {
  outline: none;
  border-color: var(--xanh);
  box-shadow: 0 0 0 3px var(--xanh-nhat);
}
.nhan {
  display: block;
  font-size: 13.5px;
  font-weight: 600;
  margin-bottom: 6px;
  color: var(--chu);
}
.truong { margin-bottom: 16px; }

/* ── Thẻ ────────────────────────────────────────────────── */
.the {
  background: var(--the);
  border: 1px solid var(--vien);
  border-radius: var(--bo-goc);
  padding: 24px;
  box-shadow: var(--bong);
}

/* ── Lưới tool ──────────────────────────────────────────── */
.luoi-tool {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(255px, 1fr));
  gap: 18px;
}
.the-tool {
  background: var(--the);
  border: 1px solid var(--vien);
  border-radius: var(--bo-goc);
  padding: 22px;
  text-decoration: none;
  color: inherit;
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: transform .16s, box-shadow .16s, border-color .16s;
  box-shadow: var(--bong);
}
.the-tool:hover {
  transform: translateY(-2px);
  box-shadow: var(--bong-noi);
  border-color: #cfccc2;
}
.the-tool .icon {
  width: 44px; height: 44px;
  border-radius: 11px;
  background: var(--xanh-nhat);
  color: var(--xanh);
  display: flex;
  align-items: center;
  justify-content: center;
  flex: none;
}
.the-tool .mo-ta { font-size: 13.5px; color: var(--chu-mo); margin: 0; }
.the-tool.sap-co { opacity: .55; pointer-events: none; }

/* ── Nhãn trạng thái ────────────────────────────────────── */
.nhan-tt {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 11.5px;
  font-weight: 600;
  padding: 3px 9px;
  border-radius: 999px;
  background: var(--xanh-nhat);
  color: var(--xanh);
  width: fit-content;
}
.nhan-tt.cho  { background: var(--vang-nhat); color: var(--vang); }
.nhan-tt.loi  { background: var(--do-nhat);   color: var(--do); }
.nhan-tt.xam  { background: #f0efea;          color: var(--chu-mo); }

/* ── Thông báo ──────────────────────────────────────────── */
.bao {
  padding: 11px 14px;
  border-radius: 10px;
  font-size: 13.5px;
  margin-bottom: 16px;
  border: 1px solid;
}
.bao.loi   { background: var(--do-nhat);   border-color: #f5c6c2; color: var(--do); }
.bao.ok    { background: var(--xanh-nhat); border-color: #bfdccb; color: var(--xanh-dam); }
.bao.canh  { background: var(--vang-nhat); border-color: #eadcb0; color: var(--vang); }
.an { display: none !important; }

/* ── Thanh tiến trình ───────────────────────────────────── */
.tien-trinh {
  height: 6px;
  background: #ecebe5;
  border-radius: 999px;
  overflow: hidden;
}
.tien-trinh > i {
  display: block;
  height: 100%;
  background: var(--xanh);
  border-radius: 999px;
  transition: width .25s ease;
  width: 0;
}

/* ── Nền ô caro (xem ảnh trong suốt) ────────────────────── */
.caro {
  background-image:
    linear-gradient(45deg, #e0ded7 25%, transparent 25%),
    linear-gradient(-45deg, #e0ded7 25%, transparent 25%),
    linear-gradient(45deg, transparent 75%, #e0ded7 75%),
    linear-gradient(-45deg, transparent 75%, #e0ded7 75%);
  background-size: 16px 16px;
  background-position: 0 0, 0 8px, 8px -8px, -8px 0;
  background-color: #f4f3ee;
}

@media (max-width: 640px) {
  .khung { padding: 24px 16px 48px; }
  .thanh-tren { padding: 0 16px; }
  .thanh-tren .email { display: none; }
  h1 { font-size: 22px; }
}