/* ==========================================================================
   Shell · title bar, sky-blue glass sidebar, canvas
   ========================================================================== */

.app {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: var(--sidebar-w) minmax(0, 1fr);
  grid-template-rows: var(--titlebar-h) minmax(0, 1fr);
  height: 100vh;
  height: 100dvh;
  overflow: hidden;
}

/* ======================= Title bar ===================================== */
.titlebar {
  grid-column: 2;
  grid-row: 1;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 0 0 0 4px;
  min-width: 0;
  user-select: none;
  background: linear-gradient(180deg, rgba(255, 255, 255, .40), rgba(255, 255, 255, .10));
  border-bottom: 1px solid var(--glass-line-soft);
  backdrop-filter: blur(var(--blur-1)) saturate(140%);
  -webkit-backdrop-filter: blur(var(--blur-1)) saturate(140%);
}

:root[data-theme="dark"] .titlebar {
  background: linear-gradient(180deg, rgba(16, 46, 70, .48), rgba(9, 30, 48, .16));
}

.tb-info {
  display: flex;
  align-items: center;
  gap: 8px;
  min-width: 0;
  overflow: hidden;
  padding-left: 14px;
}
.btn-icon.tb-menu { display: none; margin-left: 8px; flex: none; }

.nav-scrim {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 55;
  background: rgba(4, 26, 42, .38);
  backdrop-filter: blur(3px);
  -webkit-backdrop-filter: blur(3px);
  animation: fade-in var(--dur-2) var(--ease-out) both;
}

.tb-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  height: 26px;
  padding: 0 10px;
  border-radius: var(--r-pill);
  font-size: var(--fs-12);
  color: var(--ink-2);
  background: var(--glass-1);
  border: 1px solid var(--glass-line);
  box-shadow: var(--inset-top), var(--ring);
  white-space: nowrap;
}
.tb-chip svg { width: 13px; height: 13px; color: var(--sky-600); }
.tb-chip .k { letter-spacing: .04em; color: var(--ink-muted); }
.tb-chip.is-time { font-variant-numeric: tabular-nums; }
.tb-chip.is-time.is-warn { color: var(--warn-500); border-color: rgba(161, 102, 10, .3); background: var(--warn-bg); }
.tb-chip.is-time.is-warn svg { color: var(--warn-500); }

.tb-actions {
  display: flex;
  align-items: center;
  gap: 4px;
  margin-left: auto;
}

.tb-actions .btn { height: 28px; padding: 0 10px; font-size: var(--fs-12); }

.tb-sep {
  width: 1px;
  height: 18px;
  margin: 0 4px;
  background: var(--hairline);
}

.tb-window {
  display: flex;
  align-items: stretch;
  align-self: stretch;
  margin-left: 6px;
}

.win-btn {
  display: grid;
  place-items: center;
  width: 46px;
  color: var(--ink-2);
  transition: background var(--dur-1) linear, color var(--dur-1) linear;
}
.win-btn svg { width: 12px; height: 12px; }
.win-btn:hover { background: rgba(255, 255, 255, .55); color: var(--ink); }
:root[data-theme="dark"] .win-btn:hover { background: rgba(255, 255, 255, .10); }
.win-btn.is-close:hover { background: #d92d20; color: #fff; }
.win-btn:active { transform: scale(.94); }

/* ======================= Sidebar ======================================= */
.sidebar {
  grid-column: 1;
  grid-row: 1 / 3;
  position: relative;
  display: flex;
  flex-direction: column;
  min-width: 0;
  padding: 0 14px 14px;
  color: var(--sb-ink);
  isolation: isolate;
  background:
    linear-gradient(178deg,
      rgba(155, 209, 240, .97) 0%,
      rgba(121, 188, 228, .98) 30%,
      rgba(95, 167, 211, .98) 66%,
      rgba(85, 156, 201, .99) 100%);
  backdrop-filter: blur(var(--blur-3)) saturate(150%);
  -webkit-backdrop-filter: blur(var(--blur-3)) saturate(150%);
  border-right: 1px solid rgba(255, 255, 255, .55);
  box-shadow: inset -1px 0 0 rgba(255, 255, 255, .30), 14px 0 44px -30px rgba(6, 60, 92, .55);
  transition: width var(--dur-3) var(--ease-out), padding var(--dur-3) var(--ease-out);
  z-index: 3;

  /* sidebar text system — swapped wholesale in dark mode */
  --sb-ink: #083c58;
  --sb-ink-soft: rgba(8, 60, 88, .72);
  --sb-ink-group: #0f5075;
  --sb-hover: rgba(255, 255, 255, .58);
  --sb-active-bg: rgba(255, 255, 255, .97);
  --sb-active-ink: #053f63;
  --sb-line: rgba(8, 60, 88, .14);
  --sb-field: rgba(255, 255, 255, .64);
  --sb-field-line: rgba(255, 255, 255, .88);
  --sb-count-bg: rgba(255, 255, 255, .88);
  --sb-count-ink: #0b5e8a;
}

/* a soft aurora inside the blue so the glass has depth */
.sidebar::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background:
    radial-gradient(360px 260px at 12% 2%, rgba(255, 255, 255, .16), transparent 72%),
    radial-gradient(380px 420px at 96% 76%, rgba(58, 148, 204, .20), transparent 70%),
    radial-gradient(300px 260px at 0% 100%, rgba(36, 112, 162, .16), transparent 70%);
}

/* hairline of light along the inner edge */
.sidebar::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  width: 1px;
  background: linear-gradient(180deg, rgba(255, 255, 255, .95), rgba(255, 255, 255, .35) 42%, rgba(20, 92, 132, .16));
  pointer-events: none;
}

:root[data-theme="dark"] .sidebar {
  background:
    linear-gradient(178deg,
      rgba(14, 66, 86, .95) 0%,
      rgba(11, 54, 71, .96) 30%,
      rgba(7, 42, 56, .97) 66%,
      rgba(4, 26, 35, .98) 100%);
  border-right-color: rgba(140, 212, 248, .18);
  box-shadow: 12px 0 44px -30px rgba(0, 0, 0, .9);

  --sb-ink: rgba(255, 255, 255, .94);
  --sb-ink-soft: rgba(255, 255, 255, .68);
  --sb-ink-group: rgba(238, 249, 255, .80);
  --sb-hover: rgba(255, 255, 255, .16);
  --sb-active-bg: rgba(255, 255, 255, .93);
  --sb-active-ink: #064a72;
  --sb-line: rgba(255, 255, 255, .16);
  --sb-field: rgba(255, 255, 255, .12);
  --sb-field-line: rgba(255, 255, 255, .22);
  --sb-count-bg: rgba(255, 255, 255, .88);
  --sb-count-ink: #063d5e;
}
:root[data-theme="dark"] .sidebar::before {
  background:
    radial-gradient(420px 300px at 18% 6%, rgba(120, 205, 250, .18), transparent 70%),
    radial-gradient(380px 420px at 96% 74%, rgba(40, 130, 180, .22), transparent 70%),
    radial-gradient(300px 260px at 0% 100%, rgba(0, 10, 20, .45), transparent 70%);
}

/* ---- brand ------------------------------------------------------------ */
.sb-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  height: var(--titlebar-h);
  padding: 0 4px 0 6px;
  flex: none;
  position: relative;
}

.brand-mark {
  flex: none;
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  border-radius: 10px;
  background: rgba(255, 255, 255, .92);
  border: 1px solid rgba(255, 255, 255, .95);
  box-shadow: 0 6px 16px -10px rgba(6, 70, 105, .7), var(--inset-top);
  color: var(--sky-700);
}
.brand-mark svg { width: 22px; height: 22px; }

.brand-text { min-width: 0; overflow: hidden; }
.brand-name {
  display: flex;
  align-items: baseline;
  gap: 6px;
  font-size: 16.5px;
  font-weight: 600;
  letter-spacing: .05em;
  line-height: 1.2;
  color: #083c58;
}
.brand-ver {
  font-family: var(--font-num);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: .04em;
  color: rgba(8, 60, 88, .62);
}
.brand-sub {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 10px;
  letter-spacing: .10em;
  color: rgba(8, 60, 88, .68);
  margin-top: 1px;
}
:root[data-theme="dark"] .brand-mark { background: rgba(255, 255, 255, .16); border-color: rgba(255, 255, 255, .34); color: #fff; }
:root[data-theme="dark"] .brand-name { color: #fff; }
:root[data-theme="dark"] .brand-ver { color: rgba(255, 255, 255, .72); }
:root[data-theme="dark"] .brand-sub { color: rgba(255, 255, 255, .62); }
.plan-tag {
  display: inline-flex;
  align-items: center;
  height: 15px;
  padding: 0 5px;
  border-radius: 4px;
  font-size: 9px;
  font-weight: 600;
  letter-spacing: .06em;
  color: #04363c;
  background: linear-gradient(180deg, #cdf1f3, #8ddde1);
  box-shadow: var(--inset-top), var(--ring);
}

/* ---- collapse toggle -------------------------------------------------- */
.sb-collapse {
  position: absolute;
  top: calc(var(--titlebar-h) + 52px);
  right: -10px;
  z-index: 4;
  width: 20px;
  height: 20px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  color: var(--sky-700);
  background: rgba(255, 255, 255, .94);
  border: 1px solid rgba(255, 255, 255, .8);
  box-shadow: 0 4px 10px -4px rgba(3, 40, 66, .55);
  transition: transform var(--dur-2) var(--ease-out), background var(--dur-1) linear;
}
.sb-collapse svg { width: 12px; height: 12px; transition: transform var(--dur-3) var(--ease-out); }
.sb-collapse:hover { transform: scale(1.14); background: #fff; }
.sb-collapse:active { transform: scale(.92); }

/* ---- search ----------------------------------------------------------- */
.sb-search {
  position: relative;
  flex: none;
  margin: 2px 2px 10px;
}
.sb-search svg {
  position: absolute;
  left: 11px;
  top: 50%;
  width: 15px;
  height: 15px;
  transform: translateY(-50%);
  color: var(--sb-ink-soft);
  pointer-events: none;
}
.sb-search input {
  width: 100%;
  height: 38px;
  padding: 0 32px 0 33px;
  border-radius: var(--r-sm);
  font-size: 12.5px;
  color: var(--sb-ink);
  background: var(--sb-field);
  border: 1px solid var(--sb-field-line);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, .55);
  transition: background var(--dur-2) linear, border-color var(--dur-2) linear, box-shadow var(--dur-2) linear;
}
.sb-search input::placeholder { color: rgba(8, 60, 88, .55); }
.sb-search input:hover { background: rgba(255, 255, 255, .78); }
.sb-search input:focus {
  background: #fff;
  border-color: rgba(255, 255, 255, .95);
  box-shadow: 0 0 0 3px rgba(255, 255, 255, .45);
}
.sb-search__clear {
  position: absolute;
  right: 7px;
  top: 50%;
  transform: translateY(-50%);
  display: none;
  width: 18px;
  height: 18px;
  place-items: center;
  border-radius: 50%;
  color: var(--sb-ink-soft);
  background: rgba(8, 60, 88, .10);
}
.sb-search__clear svg { width: 9px; height: 9px; position: static; transform: none; color: inherit; }
.sb-search.has-value .sb-search__clear { display: grid; }
:root[data-theme="dark"] .sb-search input::placeholder { color: rgba(255, 255, 255, .60); }
:root[data-theme="dark"] .sb-search input:hover { background: rgba(255, 255, 255, .18); }
:root[data-theme="dark"] .sb-search input:focus {
  background: rgba(255, 255, 255, .22);
  border-color: rgba(255, 255, 255, .62);
  box-shadow: 0 0 0 3px rgba(255, 255, 255, .16);
}
:root[data-theme="dark"] .sb-search__clear { color: rgba(255, 255, 255, .8); background: rgba(255, 255, 255, .16); }

/* ---- nav -------------------------------------------------------------- */
.sb-nav {
  flex: 1 1 auto;
  min-height: 0;
  overflow-y: auto;
  overflow-x: hidden;
  margin: 0 -4px;
  padding: 2px 4px 12px;
  scrollbar-width: none;
  -webkit-mask-image: linear-gradient(180deg, transparent 0, #000 6px, #000 calc(100% - 18px), transparent 100%);
  mask-image: linear-gradient(180deg, transparent 0, #000 6px, #000 calc(100% - 18px), transparent 100%);
}
.sb-nav::-webkit-scrollbar { width: 0; }

.nav-item {
  position: relative;
  display: flex;
  align-items: center;
  gap: 9px;
  width: 100%;
  height: 38px;
  padding: 0 11px;
  margin-bottom: 2px;
  border-radius: var(--r-sm);
  font-size: var(--fs-14);
  color: var(--sb-ink);
  text-align: left;
  white-space: nowrap;
  transition: background var(--dur-2) var(--ease-out), color var(--dur-2) linear,
              transform var(--dur-2) var(--ease-out), box-shadow var(--dur-2) linear;
}
.nav-item svg { width: 19px; height: 19px; flex: none; opacity: .74; transition: opacity var(--dur-2) linear; }
.nav-item .lbl { flex: 1 1 auto; overflow: hidden; text-overflow: ellipsis; }
.nav-item:hover { background: var(--sb-hover); color: var(--sb-ink); }
.nav-item:hover svg { opacity: 1; }
.nav-item:active { transform: scale(.985); }

.nav-item.is-active {
  color: var(--sb-active-ink);
  font-weight: 600;
  background: var(--sb-active-bg);
  box-shadow: 0 8px 20px -14px rgba(6, 60, 92, .65), var(--inset-top);
}
.nav-item.is-active svg { opacity: 1; color: var(--sky-600); }
.nav-item.is-active::before {
  content: "";
  position: absolute;
  left: -6px;
  top: 50%;
  width: 3px;
  height: 16px;
  border-radius: 2px;
  background: var(--sky-600);
  transform: translateY(-50%);
  box-shadow: 0 0 10px rgba(11, 112, 168, .55);
}

.nav-count {
  flex: none;
  min-width: 20px;
  height: 19px;
  padding: 0 6px;
  display: grid;
  place-items: center;
  border-radius: var(--r-pill);
  font-family: var(--font-num);
  font-size: 10.5px;
  font-weight: 600;
  color: var(--sb-count-ink);
  background: var(--sb-count-bg);
}
.nav-item.is-active .nav-count { background: var(--sky-600); color: #fff; }

/* group ----------------------------------------------------------------- */
.nav-group { margin-top: 6px; }
.nav-parent {
  display: flex;
  align-items: center;
  gap: 8px;
  width: 100%;
  height: 30px;
  padding: 0 11px;
  margin-bottom: 2px;
  border-radius: var(--r-xs);
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: .08em;
  color: var(--sb-ink-group);
  text-align: left;
  transition: color var(--dur-2) linear, background var(--dur-2) linear;
}
.nav-parent .grp { display: none; }
.nav-parent svg { width: 13px; height: 13px; transition: transform var(--dur-2) var(--ease-out); }
.nav-parent:hover { color: var(--sb-ink); background: var(--sb-hover); }
.nav-group.is-open .nav-parent svg.chev { transform: rotate(90deg); }

.nav-children {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows var(--dur-3) var(--ease-out), opacity var(--dur-2) linear;
  opacity: 0;
}
.nav-group.is-open .nav-children { grid-template-rows: 1fr; opacity: 1; }
.nav-children > div { overflow: hidden; min-height: 0; }

.nav-child {
  display: flex;
  align-items: center;
  gap: 8px;
  width: 100%;
  height: 33px;
  padding: 0 11px 0 33px;
  margin-bottom: 1px;
  border-radius: var(--r-xs);
  font-size: 13.5px;
  color: var(--sb-ink);
  text-align: left;
  white-space: nowrap;
  transition: background var(--dur-2) linear, color var(--dur-2) linear;
}
.nav-child svg { width: 17px; height: 17px; flex: none; opacity: .72; }
.nav-child:hover { background: var(--sb-hover); color: var(--sb-ink); }
.nav-child.is-active {
  color: var(--sb-active-ink);
  font-weight: 600;
  background: var(--sb-active-bg);
  box-shadow: 0 6px 16px -12px rgba(6, 60, 92, .6), var(--inset-top);
}

.nav-empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  padding: 26px 8px;
  text-align: center;
  font-size: var(--fs-12);
  color: var(--sb-ink-soft);
}
.nav-empty svg { width: 20px; height: 20px; opacity: .7; }

/* footer ---------------------------------------------------------------- */
.sb-foot {
  flex: none;
  padding-top: 10px;
  border-top: 1px solid var(--sb-line);
}

.sb-user {
  display: flex;
  align-items: center;
  gap: 9px;
  width: 100%;
  height: 46px;
  padding: 0 9px;
  border-radius: var(--r-sm);
  transition: background var(--dur-2) linear;
}
.sb-user:hover { background: var(--sb-hover); }
.sb-avatar {
  flex: none;
  width: 30px;
  height: 30px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  font-size: 12px;
  font-weight: 600;
  color: #03343a;
  background: linear-gradient(180deg, #cdf1f3, #8acfd8);
  border: 1px solid rgba(255, 255, 255, .5);
}
.sb-user__meta { min-width: 0; flex: 1 1 auto; text-align: left; overflow: hidden; }
.sb-user__name { font-size: var(--fs-13); font-weight: 600; color: var(--sb-ink); line-height: 1.3; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.sb-user__sub { display: block; font-size: 10px; color: var(--sb-ink-soft); line-height: 1.3; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.sb-user .logout { margin-left: auto; width: 14px; height: 14px; opacity: .65; }
.sb-user:hover .logout { opacity: 1; }

/* collapsed ------------------------------------------------------------- */
.app.is-collapsed { --sidebar-w: var(--sidebar-w-collapsed); }
.app.is-collapsed .sidebar { padding-left: 10px; padding-right: 10px; }
.app.is-collapsed .brand-text,
.app.is-collapsed .nav-item .lbl,
.app.is-collapsed .nav-child .lbl,
.app.is-collapsed .nav-count,
.app.is-collapsed .nav-parent .lbl,
.app.is-collapsed .sb-user__meta,
.app.is-collapsed .sb-user .logout,
.app.is-collapsed .sb-search input { opacity: 0; pointer-events: none; }

.app.is-collapsed .nav-item,
.app.is-collapsed .nav-child,
.app.is-collapsed .nav-parent { justify-content: center; padding: 0; overflow: hidden; }
.app.is-collapsed .nav-item { height: 42px; }
.app.is-collapsed .nav-child { height: 36px; }
.app.is-collapsed .nav-parent { height: 38px; color: var(--sb-ink-group); }
.app.is-collapsed .nav-parent .grp { display: block; width: 17px; height: 17px; opacity: .8; }
.app.is-collapsed .nav-parent svg.chev { display: none; }
.app.is-collapsed .sb-collapse svg { transform: rotate(180deg); }
.app.is-collapsed .sb-user { justify-content: center; padding: 0; }
.app.is-collapsed .sb-search input { width: 38px; padding: 0; }
.app.is-collapsed .sb-search svg { left: 50%; margin-left: -7px; }
.app.is-collapsed .nav-group.is-open .nav-children { grid-template-rows: 1fr; opacity: 1; }
.app.is-collapsed .nav-children { grid-template-rows: 0fr; opacity: 1; }
.app.is-collapsed .nav-item .lbl,
.app.is-collapsed .nav-child .lbl,
.app.is-collapsed .nav-parent .lbl { display: none; }

/* ======================= Canvas ======================================== */
.canvas {
  grid-column: 2;
  grid-row: 2;
  position: relative;
  min-width: 0;
  min-height: 0;
  overflow: hidden;
}

.page-scroll {
  height: 100%;
  overflow-y: auto;
  overflow-x: hidden;
  padding: 0 20px 26px;
  scroll-behavior: smooth;
}

.page {
  max-width: 1440px;
  margin: 0 auto;
  padding-top: 14px;
  animation: page-in var(--dur-3) var(--ease-out) both;
}

/* ======================= Login ========================================= */
.login {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1.15fr .85fr;
  height: 100vh;
  height: 100dvh;
  padding: 46px 54px 34px;
  gap: 40px;
}

.login__brand {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-width: 0;
}

.login__top { display: flex; align-items: center; gap: 10px; }
.login__mark {
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  border-radius: 11px;
  color: #fff;
  background: linear-gradient(160deg, rgba(56, 175, 232, .95), rgba(7, 86, 131, .95));
  box-shadow: 0 14px 30px -16px rgba(3, 50, 80, .9), var(--inset-top);
}
.login__mark svg { width: 24px; height: 24px; }
.login__word { font-size: 18px; font-weight: 700; letter-spacing: .10em; }

.login__lede { max-width: 470px; }
.login__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: var(--fs-12);
  color: var(--ink-muted);
  margin-bottom: 18px;
}
.login__eyebrow::before {
  content: "";
  width: 22px;
  height: 1px;
  background: var(--hairline-strong);
}
.login h1 {
  font-size: 46px;
  line-height: 1.12;
  letter-spacing: -.02em;
  font-weight: 600;
  color: var(--ink);
}
.login h1 em { font-style: normal; color: var(--sky-600); }
.login__sub {
  margin-top: 18px;
  font-size: var(--fs-14);
  line-height: 1.8;
  color: var(--ink-muted);
  max-width: 400px;
}
.login__points {
  display: grid;
  gap: 14px;
  margin-top: 34px;
  max-width: 420px;
}
.login__point {
  display: flex;
  gap: 12px;
  align-items: flex-start;
}
.login__point svg { width: 18px; height: 18px; flex: none; margin-top: 2px; color: var(--sky-600); }
.login__point b { display: block; font-size: var(--fs-13); font-weight: 600; }
.login__point span { display: block; font-size: var(--fs-12); color: var(--ink-muted); margin-top: 2px; }

.login__foot { font-size: var(--fs-11); color: var(--ink-faint); letter-spacing: .02em; }

.login__panel {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 0;
}
.login__panel::before {
  content: "";
  position: absolute;
  width: 640px;
  height: 640px;
  border-radius: 50%;
  background:
    radial-gradient(closest-side at 42% 28%, rgba(16, 124, 178, .72), rgba(16, 124, 178, 0) 66%),
    radial-gradient(closest-side at 70% 80%, rgba(31, 168, 178, .54), rgba(31, 168, 178, 0) 64%);
  filter: blur(26px);
  pointer-events: none;
}
.login-card {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 390px;
  padding: 32px 30px 26px;
  border-radius: var(--r-xl);
  background: var(--glass-2);
  border: 1px solid var(--glass-line);
  box-shadow: var(--shadow-2), var(--inset-top);
  backdrop-filter: blur(var(--blur-3)) saturate(var(--sat));
  -webkit-backdrop-filter: blur(var(--blur-3)) saturate(var(--sat));
  animation: card-rise var(--dur-4) var(--ease-out) both;
}
.login-card__icon {
  width: 46px;
  height: 46px;
  display: grid;
  place-items: center;
  margin: 0 auto 16px;
  border-radius: 13px;
  color: var(--sky-600);
  background: var(--glass-tint-sky);
  border: 1px solid var(--glass-line);
}
.login-card__icon svg { width: 24px; height: 24px; }
.login-card h2 { font-size: var(--fs-22); text-align: center; letter-spacing: .02em; }
.login-card__sub { text-align: center; font-size: var(--fs-12); color: var(--ink-muted); margin-top: 6px; }
.login-card__form { margin-top: 26px; display: grid; gap: 14px; }
.login-card__hint { text-align: center; font-size: var(--fs-11); color: var(--ink-faint); margin-top: 16px; }

/* ======================= Responsive shell ============================== */
@media (max-width: 1240px) {
  .tb-chip.is-time { display: none; }
}

@media (max-width: 1080px) {
  :root { --sidebar-w: 216px; }
  .login { grid-template-columns: 1fr; padding: 28px; }
  .login__brand { display: none; }
  .tb-actions .btn--ghost span:empty { display: none; }
}

@media (max-width: 900px) {
  .app {
    grid-template-columns: 1fr;
    grid-template-rows: var(--titlebar-h) minmax(0, 1fr);
  }
  .titlebar { grid-column: 1; }
  .btn-icon.tb-menu { display: grid; }
  .sidebar {
    position: fixed;
    inset: 0 auto 0 0;
    width: 268px;
    transform: translateX(-100%);
    transition: transform var(--dur-3) var(--ease-out);
    z-index: 60;
    box-shadow: 24px 0 60px -30px rgba(0, 20, 36, .8);
  }
  .app.is-mobile-nav .sidebar { transform: none; }
  .app.is-mobile-nav .nav-scrim { display: block; }
  .canvas { grid-column: 1; }
  .page-scroll { padding: 0 14px 20px; }
  .tb-info { display: none; }
  .tb-actions .btn span { display: none; }
  .tb-actions .btn { padding: 0 9px; }
}

/* collapsed rail: bigger targets, a tile instead of a wide pill */
.app.is-collapsed .nav-item svg { width: 20px; height: 20px; opacity: .95; }
.app.is-collapsed .nav-child svg { width: 18px; height: 18px; opacity: .9; }
.app.is-collapsed .nav-parent svg.grp { width: 19px; height: 19px; opacity: .9; }
.app.is-collapsed .nav-item.is-active { border-radius: 12px; box-shadow: 0 8px 18px -10px rgba(6, 60, 92, .5), inset 0 0 0 1px rgba(11, 112, 168, .16); }
.app.is-collapsed .nav-item.is-active::before { display: none; }
.app.is-collapsed .nav-child.is-active { border-radius: 10px; }

/* ==========================================================================
   角色标识：客户端 / 服务端
   ========================================================================== */
.tb-role { font-weight: 600; letter-spacing: .04em; }
.tb-role--client { color: var(--sky-800); background: var(--glass-tint-sky); border-color: rgba(27, 118, 162, .22); }
.tb-role--server {
  color: #EAF3F9;
  background: linear-gradient(180deg, #2C3B48 0%, #1B262F 100%);
  border-color: rgba(255, 255, 255, .16);
  box-shadow: 0 4px 12px -8px rgba(8, 20, 30, .7);
}