/* =============================================================================
   SHARED MATRIX / DARK GREEN THEME — đồng bộ với tempmail
   ============================================================================= */
:root {
  --bg:      #0a1408;
  --bg2:     #0f1d0c;
  --bg3:     #0d170b;
  --grid:    #1a2e18;
  --line:    #2a4a26;
  --line2:   #3a5a36;
  --text:    #d4f0d0;
  --muted:   #6b9a64;
  --grass:   #4ade80;
  --grass-dk: #22c55e;
  --grass-deep: #16a34a;
  --neon:    #7bf277;
  --neon-2:  #4ade80;
  --neon-d:  #16a34a;
  --amber:   #f2c744;
  --warn:    #f2c744;
  --danger:  #ff6b6b;
  --info:    #4dd9d0;
  --selected: #1a3a1a;
  --hover:   #14291a;
  --shadow:  0 6px 0 var(--line);
  --shadow-n: 0 0 0 2px var(--grass), 0 0 18px rgba(74, 222, 128, .35);
}
html.light {
  --bg:     #eef6ea;
  --bg2:    #e3efdd;
  --bg3:    #ffffff;
  --grid:   #c9dcc1;
  --line:   #b8d0ae;
  --line2:  #9bbf90;
  --text:   #17230f;
  --muted:  #52664a;
  --grass:  #3c7a2a;
  --grass-dk: #2d5c1f;
  --grass-deep: #1f4415;
  --neon:   #1a4010;
  --neon-2: #2d5c1f;
  --neon-d: #1f4415;
  --amber:  #c08a00;
  --warn:   #c08a00;
  --danger: #e53935;
  --info:   #0288a5;
  --selected: #d4e8cc;
  --hover:  #e3efdd;
  --shadow: 0 6px 0 #00000022;
  --shadow-n: 0 0 0 2px var(--grass-dk), 0 0 12px rgba(60, 122, 42, .2);
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }

/* ===== CHUYỂN THEME MƯỢT (đồng bộ tempmail) =====
   Chỉ chuyển 3 thuộc tính rẻ tiền (nền/chữ/viền). Cố tình KHÔNG transition
   background-image: gradient không nội suy được, browser nhảy đột ngột nên
   transition chỉ tốn công vô ích. Cũng không transition box-shadow vì tốn kém. */
html.theme-anim body,
html.theme-anim .card,
html.theme-anim .panel,
html.theme-anim .container,
html.theme-anim .brand-header,
html.theme-anim .header,
html.theme-anim .wintop,
html.theme-anim button,
html.theme-anim a,
html.theme-anim input,
html.theme-anim select,
html.theme-anim textarea {
  transition: background-color 0.18s linear, color 0.18s linear, border-color 0.18s linear;
}
/* Global: bảo đảm mọi phần tử tương tác đều có cursor bàn tay */
button, input[type="button"], input[type="submit"], input[type="reset"],
a, [role="button"], [data-link], label { cursor: pointer; }
a { text-decoration: none; color: inherit; }
[data-link]:focus-visible, a:focus-visible, button:focus-visible { outline: 2px dashed var(--neon); outline-offset: 3px; }
body {
  font: 600 14px/1.55 "Inter", "JetBrains Mono", system-ui, sans-serif;
  background-color: var(--bg);
  background-image:
    radial-gradient(1200px 600px at 50% -100px, rgba(74, 222, 128, 0.08), transparent 60%),
    linear-gradient(var(--grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid) 1px, transparent 1px);
  background-size: auto, 32px 32px, 32px 32px;
  color: var(--text);
  min-height: 100vh;
}
a { color: var(--grass); text-decoration: none; }
a:hover { text-decoration: none; }

/* ===== HEADER (đồng bộ y hệt tempmail/shortlink - dùng .brand-header) ===== */
.brand-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 8px 4px;
  flex-wrap: wrap;
  gap: 16px;
  max-width: 1400px;
  margin: 0 auto;
  width: 100%;
}
.brand-header .logo {
  font-size: 1.6rem; font-weight: 800; color: var(--grass);
  display: flex; align-items: center; gap: 10px;
  text-shadow: 0 0 8px rgba(74, 222, 128, 0.5);
  text-decoration: none;
  line-height: 1;
}
.brand-header .logo img { height: 36px; width: auto; min-width: 36px; min-height: 36px; max-height: 36px; object-fit: contain; border-radius: 6px; display: block; flex-shrink: 0; }
.brand-header .header-actions { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.brand-header .nav-link-top {
  background: var(--panel); color: var(--grass);
  border: 2px solid var(--grass-dk);
  padding: 8px 14px; font: 800 0.85rem "Inter", system-ui, sans-serif;
  letter-spacing: 0.2px;
  box-shadow: 0 3px 0 var(--grass-deep);
  cursor: pointer; border-radius: 6px; text-decoration: none;
  display: inline-flex; align-items: center; gap: 5px;
  transition: all 0.1s;
  white-space: nowrap;
}
.brand-header .nav-link-top:hover { transform: translateY(2px); box-shadow: 0 1px 0 var(--grass-deep); }
.brand-header .nav-link-top:active { transform: translateY(3px); box-shadow: 0 0 0 var(--grass-deep); }
.brand-header .nav-link-login {
  background: var(--grass); color: #fff; border-color: var(--grass-dk);
}
.brand-header .nav-link-login:hover { background: var(--grass-dk); color: #fff; }

/* THEME BUTTON - đồng bộ chuẩn 4 trang (vuông 38x38, viền xanh) */
.brand-header .theme-btn-header {
  background: var(--panel);
  color: var(--text);
  border: 2px solid var(--grass);
  padding: 0; width: 38px; height: 38px;
  display: inline-flex; align-items: center; justify-content: center;
  font: 800 16px "Inter", system-ui, sans-serif; line-height: 1;
  border-radius: 6px; cursor: pointer;
  transition: all 0.15s;
}
.brand-header .theme-btn-header:hover { border-color: var(--grass-dk); color: var(--grass); }

/* USER MENU (dropdown) - đồng bộ tempmail/shortlink */
.brand-header #userMenu { position: relative; display: inline-flex; align-items: center; }
.brand-header .user-menu { position: relative; display: inline-flex; align-items: center; }
.brand-header .user-trigger {
  display: inline-flex !important; align-items: center !important;
  gap: 8px !important; padding: 5px 12px !important;
  background: rgba(74,222,128,0.12) !important;
  border: 1.5px solid var(--grass) !important;
  box-shadow: 0 3px 0 var(--grass-deep) !important;
  border-radius: 6px !important;
  color: var(--grass) !important;
  cursor: pointer; transition: all 0.1s;
  text-decoration: none; line-height: 1;
  font: 800 0.85rem "Inter", system-ui, sans-serif !important;
  white-space: nowrap;
}
.brand-header .user-trigger:hover { transform: translateY(2px); box-shadow: 0 1px 0 var(--grass-deep) !important; }
.brand-header .user-trigger:active { transform: translateY(3px); box-shadow: 0 0 0 var(--grass-deep) !important; }
.brand-header .user-avatar {
  display: inline-flex !important; align-items: center !important; justify-content: center !important;
  width: 30px !important; height: 30px !important; border-radius: 50% !important;
  background: linear-gradient(135deg, #4ade80, #16a34a) !important;
  color: #fff !important; font: 800 14px "Inter", system-ui, sans-serif !important; text-transform: uppercase;
  flex-shrink: 0;
  box-shadow: 0 2px 8px rgba(74,222,128,0.5);
}
.brand-header .user-name { font: 700 13px "Inter", system-ui, sans-serif !important; max-width: 110px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; color: var(--text); }
.brand-header .user-caret { font: 800 12px "Inter", system-ui, sans-serif !important; color: var(--muted); transition: transform 0.15s; }
.brand-header .user-menu.open .user-caret { transform: rotate(180deg); }
.brand-header .user-dropdown {
  display: none;
  position: absolute; right: 0; top: calc(100% + 8px);
  min-width: 260px; max-width: 92vw;
  background: var(--bg); border: 1.5px solid var(--line);
  border-radius: 10px; padding: 6px 0;
  box-shadow: 0 12px 32px rgba(0,0,0,0.45);
  z-index: 100;
  transform-origin: top right;
  animation: udFadeIn 0.18s ease-out;
}
.brand-header .user-menu.open .user-dropdown { display: block; }
@keyframes udFadeIn {
  from { opacity: 0; transform: scale(0.95) translateY(-4px); }
  to   { opacity: 1; transform: scale(1) translateY(0); }
}
.brand-header .ud-head { display: flex; gap: 10px; padding: 12px 14px; align-items: center; background: var(--bg); border-bottom: 1px solid var(--line); }
.brand-header .ud-avatar { display: inline-flex; align-items: center; justify-content: center; width: 40px; height: 40px; border-radius: 50%; background: linear-gradient(135deg, var(--grass), var(--grass-dk)); color: #fff; font: 800 18px; text-transform: uppercase; flex-shrink: 0; }
.brand-header .ud-divider { height: 1px; background: var(--line); margin: 4px 0; }
.brand-header .ud-item { display: block; width: 100%; text-align: left; padding: 9px 14px; font: 600 13px; color: var(--text); background: transparent; border: 0; cursor: pointer; text-decoration: none; transition: background 0.12s; font-family: inherit; }
.brand-header .ud-item:hover { background: var(--hover); }
button.ud-item { font-family: inherit; }
.brand-header .ud-danger { color: var(--danger); font-weight: 700; }
.brand-header .ud-danger:hover { background: rgba(229,57,53,0.15) !important; }

@media (max-width: 720px) {
  .brand-header { padding: 8px 0; gap: 8px; }
  .brand-header .logo { font-size: 1.3rem; }
  .brand-header .logo img { height: 30px; }
  .brand-header .header-actions { width: 100%; justify-content: flex-end; margin-left: 0; }
  .brand-header .nav-link-top { font-size: 0.75rem; padding: 6px 10px; }
  .brand-header .nav-link-login { font-size: 0.75rem; padding: 6px 10px; }
  .brand-header .theme-btn-header { width: 34px; height: 34px; font-size: 14px; }
}

/* ===== Cũ (giữ để không vỡ trang cũ nếu có) - deprecated ===== */
.header { display: flex; align-items: center; justify-content: space-between; padding: 8px 4px; flex-wrap: wrap; gap: 10px; }
.header .logo { font-size: 1.6rem; font-weight: 800; color: var(--grass); display: flex; align-items: center; gap: 10px; text-shadow: 0 0 8px rgba(74, 222, 128, 0.5); }
.header .logo img { height: 36px; border-radius: 6px; }
.header-right { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; margin-left: auto; }
.btn-header { background: var(--panel); color: var(--grass); border: 2px solid var(--grass-dk); padding: 8px 16px; font: 700 0.8rem "Inter", system-ui, sans-serif; box-shadow: 0 3px 0 var(--grass-deep); cursor: pointer; border-radius: 4px; text-decoration: none; display: inline-flex; align-items: center; gap: 6px; transition: all 0.1s; }
.btn-header:hover { transform: translateY(2px); box-shadow: 0 1px 0 var(--grass-deep); }
.btn-header:active { transform: translateY(3px); box-shadow: 0 0 0 var(--grass-deep); }
button, .btn {
  font: 700 12px "JetBrains Mono", monospace;
  background: var(--bg2);
  color: var(--text);
  border: 2px solid var(--line);
  padding: 9px 14px;
  border-radius: 4px;
  box-shadow: var(--shadow);
  cursor: pointer;
  transition: all .1s;
  letter-spacing: .3px;
}
button:hover, .btn:hover { transform: translateY(2px); box-shadow: 0 4px 0 var(--line); background: var(--hover, #152021); }
button:active, .btn:active { transform: translateY(4px); box-shadow: 0 1px 0 var(--line); }
button.primary, .btn.primary { background: linear-gradient(180deg, #16a34a, #0e7c34); color: #f0fff4; border-color: #0e7c34; }
button.danger, .btn.danger  { background: linear-gradient(180deg, #ef4444, #991b1b); color: #fff; border-color: #991b1b; }
button.warn,   .btn.warn    { background: linear-gradient(180deg, #f59e0b, #b45309); color: #fff; border-color: #b45309; }
input, select, textarea {
  font: 600 13px "JetBrains Mono", monospace;
  background: var(--bg3);
  color: var(--text);
  border: 2px solid var(--line);
  padding: 10px 12px;
  border-radius: 4px;
  outline: none;
  width: 100%;
}
input:focus, select:focus, textarea:focus { border-color: var(--neon); box-shadow: 0 0 0 2px rgba(34, 197, 94, .25); }
label { display: block; font-size: 11px; color: var(--muted); margin: 10px 0 4px; text-transform: uppercase; letter-spacing: 1px; }
.card {
  background: var(--bg2);
  border: 2px solid var(--line);
  border-radius: 6px;
  box-shadow: var(--shadow);
  padding: 18px;
}
.card-title {
  font-size: 12px; color: var(--muted);
  text-transform: uppercase; letter-spacing: 1.4px;
  margin: 0 0 12px;
}
.grid { display: grid; gap: 14px; }
.row  { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.spacer { flex: 1; }
.muted { color: var(--muted); }
.tag { display: inline-block; padding: 2px 8px; border-radius: 3px; font-size: 10px; font-weight: 700; letter-spacing: 1px; text-transform: uppercase; border: 1px solid; }
.tag.green  { color: var(--neon-2); border-color: var(--neon-d); }
.tag.red    { color: var(--danger); border-color: #7f1d1d; }
.tag.yellow { color: var(--warn); border-color: #92400e; }
.tag.blue   { color: var(--info); border-color: #075985; }
.tag.gray   { color: var(--muted); border-color: var(--line2); }
table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 10px 8px; border-bottom: 1px solid var(--line); font-size: 12px; }
th { color: var(--muted); font-weight: 700; text-transform: uppercase; font-size: 10px; letter-spacing: 1px; }
tr:hover td { background: rgba(34, 197, 94, .04); }

/* Switch */
.switch { position: relative; display: inline-block; width: 48px; height: 24px; }
.switch input { opacity: 0; width: 0; height: 0; }
.slider { position: absolute; cursor: pointer; inset: 0; background: var(--bg3); border: 2px solid var(--line); border-radius: 24px; transition: .15s; }
.slider::before { position: absolute; content: ""; height: 14px; width: 14px; left: 3px; top: 3px; background: var(--muted); border-radius: 50%; transition: .15s; }
.switch input:checked + .slider { background: rgba(34, 197, 94, .15); border-color: var(--neon-d); }
.switch input:checked + .slider::before { transform: translateX(22px); background: var(--neon); }

/* Toast */
#toast {
  position: fixed; bottom: 24px; left: 50%; transform: translateX(-50%);
  background: var(--bg2); border: 2px solid var(--neon-d); color: var(--text);
  padding: 10px 16px; border-radius: 4px; font-size: 12px; font-weight: 700;
  box-shadow: 0 0 16px rgba(34, 197, 94, .35);
  opacity: 0; pointer-events: none; transition: all .2s; z-index: 9999;
}
#toast.show { opacity: 1; bottom: 36px; }
#toast.err  { border-color: var(--danger); box-shadow: 0 0 16px rgba(239, 68, 68, .35); }

/* Announcement Toast (góc dưới phải — giống tempmail) */
.ann-toast {
  position: fixed;
  bottom: 20px;
  right: 20px;
  z-index: 9999;
  max-width: min(420px, calc(100vw - 40px));
  padding: 12px 36px 12px 16px;
  border-radius: 6px;
  border: 2px solid;
  font: 700 0.8rem "JetBrains Mono", monospace;
  box-shadow: 0 6px 24px rgba(0,0,0,.4);
  animation: ann-in 0.25s ease-out;
}
.ann-toast .ann-title   { display: block; font-size: 0.85rem; margin-bottom: 2px; }
.ann-toast .ann-content { display: block; font-weight: 400; font-size: 0.78rem; opacity: 0.95; word-wrap: break-word; }
.ann-toast .ann-close {
  position: absolute; top: 4px; right: 6px; background: none; border: 0;
  color: inherit; cursor: pointer; font-size: 16px; line-height: 1; opacity: 0.7;
}
.ann-toast .ann-close:hover { opacity: 1; }
.ann-toast.info      { background: rgba(56, 189, 248, 0.95); color: #fff; border-color: #0369a1; }
.ann-toast.warning   { background: rgba(245, 158, 11, 0.95); color: #1f1300; border-color: #b45309; }
.ann-toast.emergency { background: rgba(239, 68, 68, 0.95); color: #fff; border-color: #991b1b; animation: ann-in .25s ease-out, ann-blink 1.4s ease-in-out .3s infinite; }
@keyframes ann-in    { from { transform: translateY(20px); opacity: 0; } to { transform: translateY(0); opacity: 1; } }
@keyframes ann-blink { 50% { opacity: 0.7; } }
@media (max-width: 640px) {
  .ann-toast { right: 12px; left: 12px; max-width: none; bottom: 12px; }
}

/* Layout (header đã định nghĩa ở trên giống tempmail) */
.container { max-width: 1100px; margin: 0 auto; padding: 0 20px; }
.section-title { font-size: 14px; color: var(--muted); text-transform: uppercase; letter-spacing: 1.4px; margin: 22px 0 12px; }
.metric { display: flex; flex-direction: column; gap: 4px; }
.metric .v { font-size: 26px; font-weight: 800; color: var(--neon-2); }
.metric .l { font-size: 11px; color: var(--muted); text-transform: uppercase; letter-spacing: 1.2px; }
.tabs { display: flex; gap: 6px; border-bottom: 2px solid var(--line); margin: 14px 0 18px; flex-wrap: wrap; }
.tab  { padding: 9px 14px; cursor: pointer; color: var(--muted); border-bottom: 2px solid transparent; font-size: 12px; font-weight: 700; }
.tab.active { color: var(--neon-2); border-bottom-color: var(--neon); }
.tab-panel { display: none; }
.tab-panel.active { display: block; }
.chip { display: inline-flex; align-items: center; gap: 6px; padding: 3px 8px; background: var(--bg3); border: 1px solid var(--line); border-radius: 99px; font-size: 10px; color: var(--muted); }
.chip .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--muted); }
.chip .dot.on { background: var(--neon); box-shadow: 0 0 6px var(--neon); }
.chip .dot.off { background: var(--danger); }
.chip .dot.maint { background: var(--warn); }
@media (max-width: 720px) {
  .container { padding: 0 12px; }
  th:nth-child(2), td:nth-child(2),
  th:nth-child(4), td:nth-child(4) { display: none; }
}