/* ================================================================
   荆力变电 · Apple-inspired redesign
   Design language: iOS 26 / macOS Tahoe "Liquid Glass" + HIG dark mode
   ================================================================ */

:root {
  /* ---- Typography ---- */
  --font-display: -apple-system, BlinkMacSystemFont, "SF Pro Display",
    "SF Pro Text", "Helvetica Neue", "PingFang SC", "Microsoft YaHei",
    "Noto Sans CJK SC", sans-serif;
  --font-mono: ui-monospace, "SF Mono", "Menlo", "Consolas", monospace;

  /* ---- iOS Dark Mode system background tiers ---- */
  --bg-0: #000000;
  --bg-1: #0b0b0e;     /* slightly lifted near-black */
  --bg-2: #1c1c1e;     /* secondarySystemBackground */
  --bg-3: #2c2c2e;     /* tertiary */
  --bg-4: #3a3a3c;     /* quaternary */

  /* ---- Label tiers (Apple HIG dark) ---- */
  --label-1: rgba(255, 255, 255, 1);
  --label-2: rgba(235, 235, 245, 0.60);
  --label-3: rgba(235, 235, 245, 0.30);
  --label-4: rgba(235, 235, 245, 0.18);
  --separator: rgba(84, 84, 88, 0.65);
  --hairline: rgba(255, 255, 255, 0.08);

  /* ---- iOS system colors (dark variants) ---- */
  --blue: #0a84ff;
  --blue-2: #1f95ff;
  --green: #30d158;
  --red: #ff453a;
  --red-2: #ff5548;
  --orange: #ff9f0a;
  --yellow: #ffd60a;
  --indigo: #5e5ce6;
  --pink: #ff375f;
  --teal: #64d2ff;
  --purple: #bf5af2;
  --gray: #8e8e93;

  /* ---- Spacing (4pt grid) ---- */
  --s1: 4px;  --s2: 8px;  --s3: 12px; --s4: 16px;
  --s5: 20px; --s6: 24px; --s8: 32px; --s10: 40px; --s12: 48px;

  /* ---- Corner radii ---- */
  --r-xs: 8px;
  --r-sm: 10px;
  --r-md: 14px;
  --r-lg: 20px;
  --r-xl: 28px;
  --r-2xl: 32px;
  --r-pill: 999px;

  /* ---- Motion ---- */
  --ease: cubic-bezier(0.32, 0.72, 0, 1);   /* iOS spring-ish */
  --dur-fast: 180ms;
  --dur: 320ms;

  /* ---- Liquid glass primitive (tinted translucent + refraction) ---- */
  --glass-fill: rgba(255, 255, 255, 0.07);
  --glass-fill-2: rgba(255, 255, 255, 0.11);
  --glass-border: rgba(255, 255, 255, 0.14);
  --glass-border-hi: rgba(255, 255, 255, 0.22);
  --glass-blur: saturate(200%) blur(40px);
  --glass-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.14),
    inset 0 0 0 1px rgba(255, 255, 255, 0.03),
    0 1px 2px rgba(0, 0, 0, 0.2),
    0 12px 40px rgba(0, 0, 0, 0.45);
}

/* ================================================================
   Reset / base
   ================================================================ */
*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
html { -webkit-text-size-adjust: 100%; }

body {
  font-family: var(--font-display);
  font-size: 15px;
  line-height: 1.5;
  color: var(--label-1);
  background: #0a0a12;
  background-image:
    radial-gradient(1100px 800px at 15% 10%, rgba(10, 132, 255, 0.35), transparent 55%),
    radial-gradient(1000px 700px at 85% 85%, rgba(191, 90, 242, 0.28), transparent 55%),
    radial-gradient(900px 600px at 50% 50%, rgba(94, 92, 230, 0.22), transparent 60%),
    radial-gradient(700px 500px at 90% 15%, rgba(100, 210, 255, 0.2), transparent 60%);
  background-attachment: fixed;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  font-feature-settings: "ss01", "cv11";
}
main { max-width: 960px; margin: 0 auto; padding: var(--s5) var(--s5) 120px; }

a { color: var(--blue); text-decoration: none; }
a:hover { color: var(--blue-2); }

/* ================================================================
   Typography
   ================================================================ */
h1 {
  font-size: 30px; line-height: 1.15; font-weight: 700;
  letter-spacing: -0.022em; color: var(--label-1);
  margin: var(--s6) 0 var(--s4);
}
h2 {
  font-size: 22px; line-height: 1.2; font-weight: 600;
  letter-spacing: -0.015em; color: var(--label-1);
  margin: var(--s8) 0 var(--s3);
}
h3 {
  font-size: 17px; line-height: 1.3; font-weight: 600;
  letter-spacing: -0.01em; color: var(--label-1);
  margin: var(--s5) 0 var(--s2);
}
b, strong { color: var(--label-1); font-weight: 600; }
p { color: var(--label-1); }
.muted { color: var(--label-2); font-size: 13px; }
small { font-size: 13px; color: var(--label-2); }

/* ================================================================
   Top navigation — translucent pill bar
   ================================================================ */
.topbar {
  max-width: 960px;
  margin: var(--s3) auto 0;
  padding: var(--s2) var(--s4);
  display: flex; align-items: center; gap: var(--s2);
  flex-wrap: wrap;
  background: rgba(255, 255, 255, 0.08);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: var(--r-xl);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.2),
    0 1px 2px rgba(0, 0, 0, 0.2),
    0 12px 40px rgba(0, 0, 0, 0.4);
  position: sticky; top: var(--s3);
  z-index: 50;
}
.topbar a {
  color: var(--label-2);
  padding: 7px 14px;
  border-radius: var(--r-pill);
  font-size: 14px; font-weight: 500;
  letter-spacing: -0.005em;
  transition: color var(--dur-fast) var(--ease),
              background var(--dur-fast) var(--ease);
}
.topbar a:hover { color: var(--label-1); background: rgba(255, 255, 255, 0.06); }
.topbar a.active {
  background: var(--blue);
  color: #fff;
}
.op-display {
  margin-left: auto; font-size: 12px; color: var(--label-3);
  display: flex; align-items: center; gap: 6px;
}
.op-display b { color: var(--label-2); font-weight: 500; }
.op-display a { padding: 0; color: var(--blue); font-size: 12px; }
.logout-form { margin: 0; }
.logout-form button { padding: 6px 14px; font-size: 13px; }

/* ================================================================
   Buttons — iOS filled / tinted / gray styles
   ================================================================ */
button, .btn {
  appearance: none;
  background: var(--blue);
  color: #fff;
  border: none;
  border-radius: var(--r-pill);
  padding: 9px 20px;
  font: inherit;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: -0.01em;
  cursor: pointer;
  transition:
    background var(--dur-fast) var(--ease),
    transform var(--dur-fast) var(--ease),
    opacity var(--dur-fast) var(--ease);
  -webkit-tap-highlight-color: transparent;
}
button:hover { background: var(--blue-2); }
button:active { transform: scale(0.96); }
button:disabled { opacity: 0.4; cursor: not-allowed; transform: none; }
button:focus-visible {
  outline: none;
  box-shadow: 0 0 0 3px rgba(10, 132, 255, 0.35);
}

button.ghost {
  background: rgba(10, 132, 255, 0.16);
  color: var(--blue);
}
button.ghost:hover { background: rgba(10, 132, 255, 0.26); }

button.danger { background: var(--red); }
button.danger:hover { background: var(--red-2); }
button.danger.ghost {
  background: rgba(255, 69, 58, 0.14);
  color: var(--red);
}
button.danger.ghost:hover { background: rgba(255, 69, 58, 0.22); }

/* ================================================================
   Inputs
   ================================================================ */
input[type="text"],
input[type="password"],
input[type="number"],
input[type="date"],
input[type="file"],
textarea,
select {
  font: inherit;
  font-size: 15px;
  color: var(--label-1);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--glass-border);
  border-radius: var(--r-md);
  padding: 10px 14px;
  transition:
    border-color var(--dur-fast) var(--ease),
    background var(--dur-fast) var(--ease),
    box-shadow var(--dur-fast) var(--ease);
  -webkit-tap-highlight-color: transparent;
}
input[type="date"] { color-scheme: dark; }
input:focus,
textarea:focus,
select:focus {
  outline: none;
  border-color: rgba(10, 132, 255, 0.7);
  background: rgba(255, 255, 255, 0.07);
  box-shadow: 0 0 0 3px rgba(10, 132, 255, 0.18);
}
input::placeholder, textarea::placeholder {
  color: var(--label-3);
}
input[type="file"] { padding: 8px 12px; color: var(--label-2); }
input[type="file"]::file-selector-button {
  background: var(--blue);
  color: #fff;
  border: none;
  border-radius: var(--r-pill);
  padding: 6px 14px;
  margin-right: 10px;
  cursor: pointer;
  font-weight: 600;
}

/* Range slider — Apple-style */
input[type="range"] {
  -webkit-appearance: none; appearance: none;
  width: 220px; height: 4px;
  background: rgba(255, 255, 255, 0.12);
  border-radius: var(--r-pill);
  outline: none; cursor: pointer;
  padding: 0; border: none;
}
input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 22px; height: 22px; border-radius: 50%;
  background: #fff;
  border: none;
  box-shadow:
    0 1px 2px rgba(0, 0, 0, 0.4),
    0 4px 12px rgba(0, 0, 0, 0.3);
  cursor: grab;
  transition: transform var(--dur-fast) var(--ease);
}
input[type="range"]::-webkit-slider-thumb:active { transform: scale(1.12); }
input[type="range"]::-moz-range-thumb {
  width: 22px; height: 22px; border-radius: 50%;
  background: #fff; border: none;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.4), 0 4px 12px rgba(0, 0, 0, 0.3);
  cursor: grab;
}

/* Progress — native <progress> */
progress {
  -webkit-appearance: none; -moz-appearance: none; appearance: none;
  width: 220px; height: 6px; border: none;
  border-radius: var(--r-pill); overflow: hidden;
  background: rgba(255, 255, 255, 0.1);
}
progress::-webkit-progress-bar {
  background: rgba(255, 255, 255, 0.1); border-radius: var(--r-pill);
}
progress::-webkit-progress-value {
  background: var(--blue); border-radius: var(--r-pill);
  transition: width var(--dur) var(--ease);
}
progress::-moz-progress-bar {
  background: var(--blue); border-radius: var(--r-pill);
}

/* ================================================================
   Liquid glass surface primitive
   ================================================================ */
.card {
  background: var(--glass-fill);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  border-radius: var(--r-lg);
  padding: var(--s5);
  margin: var(--s4) 0;
  box-shadow: var(--glass-shadow);
  transition:
    border-color var(--dur) var(--ease),
    background var(--dur) var(--ease);
}
.card:hover { border-color: var(--glass-border-hi); }

.danger-zone { border-color: rgba(255, 69, 58, 0.18); }
.danger-zone:hover { border-color: rgba(255, 69, 58, 0.30); }

.row {
  display: flex; gap: var(--s3); align-items: center; flex-wrap: wrap;
}
.row form {
  display: inline-flex; gap: var(--s2); align-items: center; margin: 0;
}

/* ================================================================
   Tables (grouped list style)
   ================================================================ */
table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  background: var(--glass-fill);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  border-radius: var(--r-lg);
  overflow: hidden;
  box-shadow: var(--glass-shadow);
}
th, td {
  text-align: left;
  padding: 13px 18px;
  border-bottom: 1px solid var(--hairline);
  font-size: 14px;
}
th {
  background: rgba(255, 255, 255, 0.03);
  font-weight: 600; font-size: 12px;
  color: var(--label-2);
  letter-spacing: 0.02em;
  text-transform: uppercase;
}
tr:last-child td { border-bottom: none; }
tr { transition: background var(--dur-fast) var(--ease); }
tbody tr:hover { background: rgba(255, 255, 255, 0.04); }
td a { color: var(--blue); }
td a:hover { color: var(--blue-2); text-decoration: underline; }

/* ================================================================
   Floating file button
   ================================================================ */
.floater {
  position: fixed;
  bottom: var(--s6); right: var(--s6);
  width: 56px; height: 56px;
  border-radius: 50%;
  background: var(--blue);
  color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-size: 24px;
  box-shadow:
    0 1px 2px rgba(0, 0, 0, 0.2),
    0 12px 32px rgba(10, 132, 255, 0.45);
  transition: transform var(--dur-fast) var(--ease),
              box-shadow var(--dur-fast) var(--ease);
}
.floater:hover {
  transform: scale(1.05);
  box-shadow:
    0 1px 2px rgba(0, 0, 0, 0.2),
    0 16px 40px rgba(10, 132, 255, 0.55);
}
.floater:active { transform: scale(0.96); }

/* ================================================================
   Dashboard — focus board
   ================================================================ */
.focus-board-wrap { margin: var(--s6) 0 var(--s8); }

.focus-board-head {
  display: flex; align-items: center; justify-content: space-between;
  margin: 0 0 var(--s3);
  padding: 0 var(--s1);
}
.focus-board-title {
  font-size: 14px; font-weight: 600;
  color: var(--label-2);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.focus-edit-btn {
  padding: 6px 14px !important;
  font-size: 13px !important;
}

.focus-board {
  position: relative;
  height: 260px;
  overflow: hidden;
  padding: var(--s8) var(--s8);
  border-radius: var(--r-2xl);
  background:
    radial-gradient(900px 260px at 20% -20%, rgba(10, 132, 255, 0.30), transparent 60%),
    radial-gradient(700px 240px at 85% 115%, rgba(191, 90, 242, 0.28), transparent 60%),
    linear-gradient(165deg, rgba(255, 255, 255, 0.09), rgba(255, 255, 255, 0.04));
  border: 1px solid rgba(255, 255, 255, 0.18);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.22),
    inset 0 -1px 0 rgba(255, 255, 255, 0.04),
    0 1px 2px rgba(0, 0, 0, 0.25),
    0 20px 60px rgba(0, 0, 0, 0.5);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  -webkit-mask-image: linear-gradient(180deg, transparent 0, #000 28px, #000 calc(100% - 28px), transparent 100%);
          mask-image: linear-gradient(180deg, transparent 0, #000 28px, #000 calc(100% - 28px), transparent 100%);
  cursor: grab;
  user-select: none;
}
.focus-board:active { cursor: grabbing; }

.focus-board-inner {
  will-change: transform;
  transform: translateY(0);
}
.focus-board-dup { margin-top: 1.6em !important; }

.focus-board-text {
  margin: 0;
  font-family: var(--font-display);
  font-size: 28px;
  font-weight: 600;
  line-height: 1.55;
  letter-spacing: -0.015em;
  color: var(--label-1);
  white-space: pre-wrap;
  word-break: break-word;
  /* subtle luminous edge */
  text-shadow: 0 2px 20px rgba(10, 132, 255, 0.15);
}
.focus-board-empty {
  font-size: 17px;
  font-weight: 400;
  font-style: normal;
  color: var(--label-3);
  text-shadow: none;
}

/* ================================================================
   Dashboard — project overview list
   ================================================================ */
.project-overview {
  display: flex; flex-direction: column;
  gap: var(--s2);
}
.overview-row {
  display: flex; align-items: center;
  padding: 0;
  border-radius: var(--r-md);
  background: var(--glass-fill);
  border: 1px solid var(--glass-border);
  transition:
    background var(--dur-fast) var(--ease),
    border-color var(--dur-fast) var(--ease);
  position: relative;
}
.overview-row:hover {
  background: var(--glass-fill-2);
  border-color: var(--glass-border-hi);
}
.overview-row .pin-toggle {
  flex-shrink: 0;
  background: transparent;
  border: none;
  color: var(--label-3);
  font-size: 20px;
  padding: 14px var(--s2) 14px var(--s4);
  cursor: pointer;
  box-shadow: none;
  border-radius: 0;
  transition:
    color var(--dur-fast) var(--ease),
    transform var(--dur-fast) var(--ease);
}
.overview-row .pin-toggle:hover {
  color: var(--yellow);
  transform: scale(1.12);
  background: transparent;
}
.overview-row .pin-toggle.pinned {
  color: var(--yellow);
  text-shadow: 0 0 14px rgba(255, 214, 10, 0.5);
}
.overview-link {
  flex: 1;
  display: flex; align-items: center; gap: var(--s4);
  padding: 14px var(--s5) 14px var(--s1);
  text-decoration: none; color: inherit;
  min-width: 0;
}
.overview-title {
  font-weight: 600; font-size: 15px;
  color: var(--label-1);
  min-width: 120px; flex-shrink: 0;
  letter-spacing: -0.01em;
}
.overview-meta {
  font-size: 12px; color: var(--label-3);
  min-width: 56px; flex-shrink: 0;
}
.overview-bar-wrap {
  flex: 1; height: 6px; border-radius: var(--r-pill);
  background: rgba(255, 255, 255, 0.08);
  overflow: hidden; min-width: 80px;
}
.overview-bar {
  display: block; height: 100%;
  border-radius: var(--r-pill);
  background: var(--blue);
  transition: width var(--dur) var(--ease);
}
.overview-pct {
  font-weight: 600; font-size: 13px;
  color: var(--label-2);
  min-width: 42px; text-align: right;
  font-variant-numeric: tabular-nums;
}
.overview-deadline {
  font-size: 11px; font-weight: 500;
  color: var(--label-2);
  background: rgba(255, 255, 255, 0.08);
  padding: 3px 10px; border-radius: var(--r-pill);
  flex-shrink: 0; white-space: nowrap;
}

.overview-row-pinned {
  background:
    linear-gradient(90deg, rgba(255, 69, 58, 0.10), rgba(255, 255, 255, 0.03)) !important;
  border-color: rgba(255, 69, 58, 0.24) !important;
}

/* ================================================================
   High-priority pill badge
   ================================================================ */
.prio-badge {
  display: inline-block;
  font-size: 10px; font-weight: 700;
  color: #fff;
  background: var(--red);
  padding: 3px 9px;
  border-radius: var(--r-pill);
  margin-right: var(--s2);
  vertical-align: middle;
  letter-spacing: 0.04em;
  box-shadow: 0 0 10px rgba(255, 69, 58, 0.35);
}

/* ================================================================
   Projects list page — cards
   ================================================================ */
.project-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--s4);
}
.project-item {
  display: block;
  padding: var(--s5);
  background: var(--glass-fill);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  border-radius: var(--r-lg);
  text-decoration: none;
  color: inherit;
  box-shadow: var(--glass-shadow);
  transition:
    border-color var(--dur) var(--ease),
    transform var(--dur) var(--ease),
    background var(--dur) var(--ease);
}
.project-item:hover {
  border-color: rgba(10, 132, 255, 0.35);
  background: var(--glass-fill-2);
}
.project-item:active { transform: scale(0.99); }
.project-title {
  font-weight: 600; font-size: 17px;
  color: var(--label-1);
  margin-bottom: var(--s3);
  letter-spacing: -0.01em;
}
.project-item-pinned {
  border-color: rgba(255, 69, 58, 0.28) !important;
  background:
    linear-gradient(160deg, rgba(255, 69, 58, 0.08), rgba(255, 255, 255, 0.04)) !important;
}

/* ================================================================
   Project detail — others grid + disciplines
   ================================================================ */
.discipline {
  background: rgba(255, 255, 255, 0.025);
  border-color: var(--glass-border);
}
.others {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: var(--s3);
}
.others a {
  display: block;
  padding: var(--s4);
  border-radius: var(--r-md);
  background: var(--glass-fill);
  border: 1px solid var(--glass-border);
  text-decoration: none;
  color: inherit;
  transition: background var(--dur-fast) var(--ease),
              border-color var(--dur-fast) var(--ease);
}
.others a:hover {
  background: var(--glass-fill-2);
  border-color: var(--glass-border-hi);
}
.others a b { color: var(--label-1); }
.others progress { width: 100%; height: 5px; }

/* ================================================================
   Badges (auto/manual)
   ================================================================ */
.badge {
  display: inline-block;
  padding: 3px 11px;
  border-radius: var(--r-pill);
  font-size: 11px; font-weight: 600;
  letter-spacing: 0.02em;
  border: 1px solid transparent;
}
.badge-auto {
  background: rgba(48, 209, 88, 0.14);
  color: var(--green);
  border-color: rgba(48, 209, 88, 0.25);
}
.badge-manual {
  background: rgba(255, 159, 10, 0.14);
  color: var(--orange);
  border-color: rgba(255, 159, 10, 0.25);
}

/* ================================================================
   Error message
   ================================================================ */
.error {
  color: var(--red);
  padding: 12px 16px;
  background: rgba(255, 69, 58, 0.12);
  border-radius: var(--r-md);
  margin: var(--s3) 0;
  border: 1px solid rgba(255, 69, 58, 0.24);
  font-size: 14px;
}

/* ================================================================
   Upload / Download progress
   ================================================================ */
.progress-box {
  margin-top: var(--s4);
  padding: var(--s4);
  background: rgba(10, 132, 255, 0.06);
  border-radius: var(--r-md);
  border: 1px solid rgba(10, 132, 255, 0.18);
}
.progress-info {
  display: flex; justify-content: space-between; align-items: center;
  font-size: 13px; color: var(--label-2);
  margin: var(--s1) 0;
}
.progress-bar-track {
  width: 100%; height: 8px;
  background: rgba(255, 255, 255, 0.08);
  border-radius: var(--r-pill); overflow: hidden;
}
.progress-bar-fill {
  height: 100%;
  background: var(--blue);
  border-radius: var(--r-pill);
  transition: width 150ms linear;
}
.progress-bar-fill.success { background: var(--green); }
.progress-bar-fill.error { background: var(--red); }

/* Download overlay */
.dl-overlay {
  position: fixed; inset: 0;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  display: flex; align-items: center; justify-content: center;
  z-index: 1000;
  padding: var(--s5);
}
.dl-box {
  background: rgba(28, 28, 30, 0.88);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  padding: var(--s6);
  border-radius: var(--r-xl);
  min-width: 360px; max-width: 90vw;
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.08),
    0 20px 60px rgba(0, 0, 0, 0.6);
}
.dl-box h3 { margin: 0 0 var(--s2); color: var(--label-1); }

/* ================================================================
   Modal (focus board edit)
   ================================================================ */
.modal-overlay {
  position: fixed; inset: 0;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  display: flex; align-items: center; justify-content: center;
  z-index: 1000;
  padding: var(--s5);
}
.modal-card {
  width: 100%; max-width: 560px;
  background: rgba(28, 28, 30, 0.9);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  border-radius: var(--r-xl);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.08),
    0 30px 80px rgba(0, 0, 0, 0.6);
  overflow: hidden;
}
.modal-head {
  display: flex; align-items: center; justify-content: space-between;
  padding: var(--s4) var(--s5);
  border-bottom: 1px solid var(--hairline);
  font-weight: 600; font-size: 16px; color: var(--label-1);
  letter-spacing: -0.01em;
}
.modal-close {
  padding: 6px 12px !important;
  font-size: 13px !important;
}
.modal-body { padding: var(--s4) var(--s5) var(--s5); }
.modal-label {
  display: block;
  font-size: 12px; font-weight: 500;
  color: var(--label-2);
  margin: var(--s3) 0 var(--s2);
  letter-spacing: 0.02em;
  text-transform: uppercase;
}
.modal-body textarea,
.modal-body input[type="password"] {
  width: 100%;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--glass-border);
  border-radius: var(--r-md);
  color: var(--label-1);
  padding: 11px 14px;
  font: inherit;
  font-size: 15px;
}
.modal-body textarea {
  resize: vertical;
  min-height: 200px;
  line-height: 1.6;
  font-family: var(--font-display);
}
.modal-body textarea:focus,
.modal-body input:focus {
  outline: none;
  border-color: rgba(10, 132, 255, 0.7);
  box-shadow: 0 0 0 3px rgba(10, 132, 255, 0.18);
}
.modal-error {
  color: var(--red);
  font-size: 13px;
  min-height: 1.2em;
  margin-top: var(--s2);
}

/* ================================================================
   Login page
   ================================================================ */
.login-body {
  background: var(--bg-0);
  background-image:
    radial-gradient(700px 500px at 25% 20%, rgba(10, 132, 255, 0.18), transparent 60%),
    radial-gradient(600px 400px at 75% 80%, rgba(94, 92, 230, 0.18), transparent 60%);
  min-height: 100vh;
  display: flex; align-items: center; justify-content: center;
  padding: var(--s5);
  font-family: var(--font-display);
  color: var(--label-1);
  -webkit-font-smoothing: antialiased;
}
.login-card {
  width: 100%; max-width: 380px;
  background: rgba(28, 28, 30, 0.7);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  padding: var(--s8) var(--s8) var(--s6);
  border-radius: var(--r-2xl);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.08),
    0 30px 80px rgba(0, 0, 0, 0.6);
}
.login-card h1 {
  margin: 0;
  font-size: 28px; font-weight: 700;
  letter-spacing: -0.022em;
  color: var(--label-1);
}
.login-card .muted {
  color: var(--label-2);
  margin: var(--s1) 0 var(--s6);
}
.login-card form {
  display: flex; flex-direction: column; gap: var(--s3);
}
.login-card input[type="password"] {
  padding: 13px 16px;
  font-size: 15px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--glass-border);
  border-radius: var(--r-md);
  color: var(--label-1);
}
.login-card input[type="password"]:focus {
  border-color: rgba(10, 132, 255, 0.7);
  box-shadow: 0 0 0 3px rgba(10, 132, 255, 0.18);
  outline: none;
}
.login-card button {
  padding: 13px;
  font-size: 15px;
  margin-top: var(--s1);
}

/* ================================================================
   Scrollbar
   ================================================================ */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.12);
  border-radius: var(--r-pill);
  border: 2px solid transparent;
  background-clip: padding-box;
}
::-webkit-scrollbar-thumb:hover {
  background: rgba(255, 255, 255, 0.22);
  background-clip: padding-box;
  border: 2px solid transparent;
}

/* ================================================================
   Selection
   ================================================================ */
::selection {
  background: rgba(10, 132, 255, 0.35);
  color: var(--label-1);
}

/* ================================================================
   Responsive — <640px
   ================================================================ */
@media (max-width: 640px) {
  main { padding: var(--s4) var(--s3) 120px; }
  .topbar {
    margin-top: var(--s2); padding: var(--s2) var(--s3);
    border-radius: var(--r-lg);
  }
  .op-display { display: none; }
  h1 { font-size: 26px; }
  h2 { font-size: 20px; }
  .focus-board { padding: var(--s5) var(--s6); height: 220px; }
  .focus-board-text { font-size: 22px; }
  .overview-link {
    flex-wrap: wrap; padding-right: var(--s4);
  }
  .overview-title { min-width: 0; flex: 1; }
  .overview-meta { display: none; }
}

/* ================================================================
   Diag page — port probe
   ================================================================ */
.diag-client-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: var(--s4) var(--s6);
}
.diag-client-grid > div {
  display: flex; flex-direction: column; gap: 2px;
  min-width: 0;
}
.diag-k {
  font-size: 11px; font-weight: 600;
  color: var(--label-2);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.diag-v {
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--label-1);
  word-break: break-all;
}
.diag-v.diag-ua {
  font-size: 12px;
  color: var(--label-2);
  line-height: 1.4;
}

.diag-table-wrap { overflow-x: auto; }
.diag-table-wrap td code {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--label-1);
}

.diag-xport {
  display: inline-block;
  padding: 2px 9px;
  border-radius: var(--r-pill);
  font-size: 10px; font-weight: 700;
  letter-spacing: 0.06em;
  border: 1px solid transparent;
}
.diag-xport-tcp {
  background: rgba(10, 132, 255, 0.14);
  color: var(--blue);
  border-color: rgba(10, 132, 255, 0.28);
}
.diag-xport-udp {
  background: rgba(191, 90, 242, 0.14);
  color: var(--purple);
  border-color: rgba(191, 90, 242, 0.28);
}

.diag-badge {
  display: inline-block;
  padding: 3px 10px;
  border-radius: var(--r-pill);
  font-size: 11px; font-weight: 600;
  letter-spacing: 0.02em;
  border: 1px solid transparent;
  white-space: nowrap;
}
.diag-badge-pending {
  background: rgba(255, 255, 255, 0.06);
  color: var(--label-2);
  border-color: var(--glass-border);
}
.diag-badge-testing {
  background: rgba(10, 132, 255, 0.14);
  color: var(--blue);
  border-color: rgba(10, 132, 255, 0.28);
}
.diag-badge-ok {
  background: rgba(48, 209, 88, 0.14);
  color: var(--green);
  border-color: rgba(48, 209, 88, 0.30);
}
.diag-badge-fail {
  background: rgba(255, 69, 58, 0.12);
  color: var(--red);
  border-color: rgba(255, 69, 58, 0.28);
}
.diag-badge-timeout {
  background: rgba(255, 159, 10, 0.14);
  color: var(--orange);
  border-color: rgba(255, 159, 10, 0.28);
}
.diag-badge-skip {
  background: rgba(142, 142, 147, 0.16);
  color: var(--label-2);
  border-color: rgba(142, 142, 147, 0.30);
}

button.ghost.diag-retest {
  padding: 4px 12px;
  font-size: 12px;
}

.diag-latency-cell {
  font-family: var(--font-mono);
  font-size: 13px;
}

/* ================================================================
   Prefers reduced motion
   ================================================================ */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }
}