/* ─────────────────────────────────────────────────────────────────
   base.css — CultureX design system (Apple HIG)
   System font · Glass materials · iOS semantic colors
   All page tokens cascade from the :root block below.
───────────────────────────────────────────────────────────────── */

/* ── Accessibility utility ────────────────────────────────────── */
.sr-only {
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}

/* ── Design Tokens ────────────────────────────────────────────── */
:root {
  /* Canvas */
  --bg-main:  #000000;

  /* Glass layers (used with backdrop-filter) */
  --bg-card:  rgba(28, 28, 30, 0.82);
  --bg-card2: rgba(44, 44, 46, 0.72);

  /* Separators — Apple hairline */
  --border:   rgba(84, 84, 88, 0.48);
  --border-h: rgba(84, 84, 88, 0.78);

  /* Typography */
  --text:   rgba(255, 255, 255, 0.92);
  --muted:  rgba(255, 255, 255, 0.50);

  /* Accent — iOS Blue / Indigo */
  --accent:  #0A84FF;
  --accent2: #5E5CE6;
  --glow:    rgba(10, 132, 255, 0.10);

  /* Semantic colors (iOS palette) */
  --c-green:  #30D158;
  --c-red:    #FF453A;
  --c-yellow: #FF9F0A;
  --c-blue:   #0A84FF;
  --c-purple: #BF5AF2;
  --c-teal:   #5AC8FA;

  /* Shape */
  --radius: 0.75rem;

  /* Glass blur levels */
  --glass-blur:  blur(24px) saturate(1.8);
  --glass-blur2: blur(16px) saturate(1.5);

  /* Legacy aliases — keeps older page CSS working unchanged */
  --bg-card-legacy: rgba(28, 28, 30, 0.75);
  --border-card:    var(--border);
  --text-main:      var(--text);
  --text-muted:     var(--muted);
  --accent-1:       var(--accent);
  --accent-2:       var(--accent2);
  --accent-glow:    var(--glow);
  --color-red:      var(--c-red);
  --color-green:    var(--c-green);
  --color-yellow:   var(--c-yellow);
}

/* ── Reset ───────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

button {
  appearance: none; -webkit-appearance: none;
  font-family: -apple-system, BlinkMacSystemFont, 'Helvetica Neue', system-ui, sans-serif;
  background: transparent; border: none;
  cursor: pointer; line-height: 1;
}

/* ── Body ────────────────────────────────────────────────────── */
body {
  font-family: -apple-system, BlinkMacSystemFont, 'Helvetica Neue', system-ui, sans-serif;
  font-optical-sizing: auto;
  background: var(--bg-main);
  background-image: radial-gradient(ellipse 80% 35% at 50% -8%, rgba(10,132,255,0.07) 0%, transparent 70%);
  color: var(--text);
  min-height: 100vh;
  padding: 1.5rem 2rem 3rem;
  position: relative;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

/* ── Typography ──────────────────────────────────────────────── */
h1, h2, h3, h4 {
  font-family: -apple-system, BlinkMacSystemFont, 'Helvetica Neue', system-ui, sans-serif;
  font-weight: 700;
}

/* ── Page Header ─────────────────────────────────────────────── */
.page-header {
  display: flex; align-items: flex-start; justify-content: space-between;
  margin-bottom: 1.75rem; position: relative; z-index: 1;
  flex-wrap: wrap; gap: 1rem;
}
.page-header h1 {
  font-size: 1.75rem;
  font-weight: 700;
  letter-spacing: -0.022em;
  line-height: 1.15;
  color: var(--text);
}
.page-header .subtitle { color: var(--muted); font-size: 0.85rem; margin-top: 0.25rem; }

/* ── Card ────────────────────────────────────────────────────── */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  position: relative; z-index: 1;
}
.card-head {
  padding: 1rem 1.4rem; border-bottom: 1px solid var(--border);
  display: flex; align-items: center; justify-content: space-between; gap: 0.75rem;
}
.card-head h2, .card-head h3 {
  font-size: 1rem; font-weight: 600;
  letter-spacing: -0.012em;
  color: var(--text);
}
.card-body { padding: 1.4rem; }

/* ── KPI Grid ────────────────────────────────────────────────── */
.kpi-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem; margin-bottom: 1.75rem; position: relative; z-index: 1;
}
.kpi-card {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 1.5rem;
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  transition: border-color .2s, transform .2s;
}
.kpi-card:hover { border-color: var(--border-h); transform: translateY(-2px); }

/* KPI Row */
.kpi-row {
  display: grid; grid-template-columns: repeat(4, 1fr);
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius); overflow: hidden;
  margin-bottom: 1.5rem; position: relative; z-index: 1;
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
}
.kpi-cell {
  padding: 1.4rem 1rem; text-align: center;
  border-right: 1px solid var(--border);
}
.kpi-cell:last-child { border-right: none; }

.kpi-value {
  font-size: 2.4rem; font-weight: 700;
  line-height: 1; margin-bottom: 0.35rem;
  letter-spacing: -0.03em;
  font-variant-numeric: tabular-nums;
  color: var(--accent);
}
.kpi-value.green  { color: var(--c-green); }
.kpi-value.blue   { color: var(--accent); }
.kpi-value.red    { color: var(--c-red); }
.kpi-value.yellow { color: var(--c-yellow); }
.kpi-label {
  font-size: 0.73rem; color: var(--muted);
  text-transform: uppercase; letter-spacing: .07em; font-weight: 600;
}

/* ── Buttons ─────────────────────────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; gap: 0.4rem;
  padding: 0.5rem 1.1rem; border-radius: 0.55rem;
  background: rgba(255,255,255,0.06); border: 1px solid var(--border);
  color: var(--text); font-size: 0.88rem;
  font-family: -apple-system, BlinkMacSystemFont, 'Helvetica Neue', system-ui, sans-serif;
  font-weight: 500; cursor: pointer;
  transition: transform 80ms cubic-bezier(0.25,0.46,0.45,0.94),
              background 140ms, border-color 140ms, color 140ms;
  text-decoration: none; line-height: 1.4; white-space: nowrap;
  will-change: transform;
}
.btn:hover:not(:disabled) {
  background: rgba(255,255,255,0.10); border-color: var(--border-h); color: var(--text);
}
.btn:active:not(:disabled) { transform: scale(0.97); }
.btn:disabled { opacity: 0.42; cursor: not-allowed; }
.btn.active { border-color: var(--c-red); color: var(--c-red); background: rgba(255,69,58,0.10); }

.btn-primary {
  background: var(--accent);
  border-color: transparent; color: #fff; font-weight: 600;
}
.btn-primary:hover:not(:disabled) {
  opacity: 0.88; border-color: transparent; color: #fff; background: var(--accent);
}
.btn-primary:disabled { opacity: 0.42; }

/* ── Form Controls ───────────────────────────────────────────── */
.form-row { display: flex; gap: 1rem; flex-wrap: wrap; margin-bottom: 1.1rem; }
.form-group { display: flex; flex-direction: column; gap: 0.4rem; }
.form-label {
  display: block; font-size: 0.78rem; font-weight: 600; color: var(--muted);
  text-transform: uppercase; letter-spacing: .05em; margin-bottom: 0.3rem;
}

input[type="text"], input[type="search"],
select, textarea {
  background: rgba(255,255,255,0.06); border: 1px solid var(--border);
  border-radius: 0.55rem; color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, 'Helvetica Neue', system-ui, sans-serif;
  font-size: 0.9rem;
  padding: 0.55rem 1.85rem; outline: none;
  transition: border-color .15s, box-shadow .15s;
  appearance: none; -webkit-appearance: none;
}
input[type="number"] {
  background: rgba(255,255,255,0.06); border: 1px solid var(--border);
  border-radius: 0.55rem; color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, 'Helvetica Neue', system-ui, sans-serif;
  font-size: 0.9rem; padding: 0.55rem 0.75rem; outline: none;
  transition: border-color .15s, box-shadow .15s;
  appearance: none; -webkit-appearance: none;
}
input::placeholder { color: var(--muted); }
input:focus, select:focus, textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(10,132,255,0.16);
  outline: none;
}
select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='rgba(255,255,255,0.4)'%3E%3Cpath d='M7 10l5 5 5-5z'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: right 0.6rem center;
  background-size: 18px; padding-right: 2.2rem; cursor: pointer;
}
select option { background: #1c1c1e; color: var(--text); }
textarea { resize: vertical; min-height: 80px; }
input[type="checkbox"] { width: 14px; height: 14px; accent-color: var(--accent); cursor: pointer; }

/* ── Status / Priority Badges ────────────────────────────────── */
.badge {
  display: inline-block; padding: 0.2rem 0.7rem;
  border-radius: 2rem; font-size: 0.74rem; font-weight: 600; white-space: nowrap;
}

.status-pill        { display: inline-block; padding: 0.2rem 0.7rem; border-radius: 2rem; font-size: 0.75rem; font-weight: 600; white-space: nowrap; }
.status-pill.done   { background: rgba(48,209,88,0.14);  color: var(--c-green); }
.status-pill.inprog { background: rgba(10,132,255,0.14); color: var(--accent); }
.status-pill.other  { background: rgba(255,159,10,0.14); color: var(--c-yellow); }
.status-pill.empty  { background: rgba(84,84,88,0.18);   color: var(--muted); }

.priority-pill          { display: inline-block; padding: 0.2rem 0.7rem; border-radius: 2rem; font-size: 0.75rem; font-weight: 600; white-space: nowrap; }
.priority-pill.critical { background: rgba(255,69,58,0.14);  color: var(--c-red); }
.priority-pill.high     { background: rgba(255,159,10,0.14); color: var(--c-yellow); }
.priority-pill.medium   { background: rgba(10,132,255,0.14); color: var(--accent); }
.priority-pill.low      { background: rgba(48,209,88,0.12);  color: var(--c-green); }
.priority-pill.other    { background: rgba(84,84,88,0.18);   color: var(--muted); }
.priority-pill.empty    { color: var(--muted); font-size: 0.75rem; }

.stuck-badge {
  display: inline-flex; align-items: center; gap: 0.3rem;
  padding: 0.2rem 0.65rem;
  background: rgba(255,69,58,0.12); color: var(--c-red);
  border: 1px solid rgba(255,69,58,0.28);
  border-radius: 2rem; font-size: 0.74rem; font-weight: 600; white-space: nowrap;
}

/* ── Table ───────────────────────────────────────────────────── */
.table-container { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }

th {
  font-family: -apple-system, BlinkMacSystemFont, 'Helvetica Neue', system-ui, sans-serif;
  font-size: 0.72rem; font-weight: 700; text-transform: uppercase; letter-spacing: .07em;
  color: var(--muted); padding: 0.7rem 1rem;
  border-bottom: 1px solid var(--border); text-align: left; white-space: nowrap;
  background: rgba(255,255,255,0.02);
  user-select: none;
}
th:hover { color: var(--text); }

td {
  padding: 0.75rem 1rem; border-bottom: 1px solid var(--border);
  font-size: 0.875rem; vertical-align: middle; color: var(--text);
}
tbody tr:last-child td { border-bottom: none; }
tbody tr:hover td { background: rgba(255,255,255,0.025); }

tr.stuck-row td       { background: rgba(255,69,58,0.06); }
tr.stuck-row:hover td { background: rgba(255,69,58,0.10); }

/* ── Misc UI ─────────────────────────────────────────────────── */
.timestamp-chip {
  font-size: 0.8rem; color: var(--muted);
  background: var(--bg-card); border: 1px solid var(--border);
  padding: 0.35rem 0.9rem; border-radius: 2rem;
  backdrop-filter: var(--glass-blur2);
  -webkit-backdrop-filter: var(--glass-blur2);
}

/* ── Loading Overlay ─────────────────────────────────────────── */
.loading-overlay {
  display: none; position: fixed; inset: 0;
  background: rgba(0,0,0,0.72); z-index: 50;
  align-items: center; justify-content: center; flex-direction: column;
  gap: 1rem; backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px);
}
.loading-overlay.show { display: flex; }
.loading-inline {
  display: flex; flex-direction: column; align-items: center;
  justify-content: center; padding: 3rem; gap: 1rem;
}

.spinner {
  width: 36px; height: 36px; border-radius: 50%;
  border: 3px solid var(--border); border-top-color: var(--accent);
  animation: spin 0.8s linear infinite;
}
.spinner-sm {
  width: 18px; height: 18px; border-radius: 50%;
  border: 2.5px solid rgba(255,255,255,0.18); border-top-color: #fff;
  animation: spin 0.7s linear infinite; display: inline-block;
}
@keyframes spin { to { transform: rotate(360deg); } }
.loading-text { color: var(--muted); font-size: 0.9rem; }

/* ── Toast ───────────────────────────────────────────────────── */
.toast {
  position: fixed; bottom: 1.5rem; right: 1.5rem;
  padding: 0.75rem 1.25rem; border-radius: 0.65rem;
  font-size: 0.88rem; font-weight: 500; z-index: 200;
  transform: translateY(60px); opacity: 0;
  transition: transform .3s cubic-bezier(0.34,1.56,0.64,1), opacity .25s;
  pointer-events: none;
  backdrop-filter: var(--glass-blur2);
  -webkit-backdrop-filter: var(--glass-blur2);
  box-shadow: 0 8px 32px rgba(0,0,0,0.4);
}
.toast.show    { transform: translateY(0); opacity: 1; }
.toast.success { background: rgba(48,209,88,0.15);  color: var(--c-green); border: 1px solid rgba(48,209,88,0.30); }
.toast.error   { background: rgba(255,69,58,0.15);  color: var(--c-red);   border: 1px solid rgba(255,69,58,0.30); }

/* ── State Messages ──────────────────────────────────────────── */
.empty-state {
  text-align: center; padding: 3rem 1.5rem;
  color: var(--muted); font-size: 0.9rem;
}
.empty-state svg { opacity: 0.25; margin-bottom: 0.75rem; }

.error-msg {
  padding: 1rem 1.25rem; border-radius: var(--radius); font-size: 0.88rem;
  background: rgba(255,69,58,0.10); color: var(--c-red);
  border: 1px solid rgba(255,69,58,0.24); margin-bottom: 1rem;
}
.success-msg {
  padding: 1rem 1.25rem; border-radius: var(--radius); font-size: 0.88rem;
  background: rgba(48,209,88,0.10); color: var(--c-green);
  border: 1px solid rgba(48,209,88,0.24); margin-bottom: 1rem;
}

/* ── Progress Bar ────────────────────────────────────────────── */
.progress-wrap { margin-top: 1rem; display: none; }
.progress-wrap.show { display: block; }
.progress-lbl  { font-size: 0.78rem; color: var(--muted); margin-bottom: 0.4rem; }
.progress-bg   { height: 5px; background: var(--border); border-radius: 3px; overflow: hidden; }
.progress-bar  {
  height: 5px; border-radius: 3px; width: 0;
  background: var(--accent);
  transition: width .6s cubic-bezier(0.25,0.46,0.45,0.94);
}

/* ── Charts Grid ─────────────────────────────────────────────── */
.charts-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(460px, 1fr));
  gap: 1.25rem; margin-bottom: 1.75rem; position: relative; z-index: 1;
}
.chart-container { height: 340px; width: 100%; }

/* ── Utilities ───────────────────────────────────────────────── */
.z1           { position: relative; z-index: 1; }
.text-muted   { color: var(--muted); }
.text-accent  { color: var(--accent); }
.text-gradient {
  /* Kept for back-compat — renders as plain white now */
  color: var(--text);
}

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

@media (max-width: 640px) {
  body { padding: 1rem 1rem 2rem; }
  .kpi-row { grid-template-columns: repeat(2, 1fr); }
  .kpi-cell:nth-child(2) { border-right: none; }
  .kpi-cell { border-bottom: 1px solid var(--border); }
  .kpi-cell:nth-child(3), .kpi-cell:nth-child(4) { border-bottom: none; }
  .charts-grid { grid-template-columns: 1fr; }
}