/* =====================================================================
   Working Time Recording – Main Stylesheet
   ===================================================================== */

/* ── Variables ──────────────────────────────────────────────────────── */
:root {
  --clr-primary:    #2563eb;
  --clr-primary-dk: #1d4ed8;
  --clr-success:    #16a34a;
  --clr-danger:     #dc2626;
  --clr-warning:    #d97706;
  --clr-bg:         #f8fafc;
  --clr-surface:    #ffffff;
  --clr-border:     #e2e8f0;
  --clr-text:       #1e293b;
  --clr-muted:      #64748b;
  --radius:         0.5rem;
  --shadow:         0 1px 3px rgba(0,0,0,.12), 0 1px 2px rgba(0,0,0,.08);
  --shadow-md:      0 4px 6px rgba(0,0,0,.07), 0 2px 4px rgba(0,0,0,.06);
}

/* ── Reset / Base ───────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; scroll-behavior: smooth; }
body {
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
  background: var(--clr-bg);
  color: var(--clr-text);
  min-height: 100vh;
}
a { color: var(--clr-primary); text-decoration: none; }
a:hover { text-decoration: underline; }
button { cursor: pointer; font-family: inherit; }
input, select, textarea { font-family: inherit; font-size: 1rem; }

/* ── Layout ─────────────────────────────────────────────────────────── */
.app-header {
  background: var(--clr-primary);
  color: #fff;
  padding: 0 1.5rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  height: 56px;
  box-shadow: var(--shadow);
  position: sticky;
  top: 0;
  z-index: 100;
}
.app-header h1 { font-size: 1.1rem; font-weight: 600; flex: 1; }
.app-header .clock { font-size: 1rem; font-variant-numeric: tabular-nums; }

.main-nav {
  background: var(--clr-surface);
  border-bottom: 1px solid var(--clr-border);
  display: flex;
  overflow-x: auto;
}
.main-nav button {
  background: none;
  border: none;
  border-bottom: 3px solid transparent;
  padding: 0.75rem 1.25rem;
  font-size: .95rem;
  color: var(--clr-muted);
  white-space: nowrap;
  transition: color .15s, border-color .15s;
}
.main-nav button:hover { color: var(--clr-primary); }
.main-nav button.active {
  color: var(--clr-primary);
  border-bottom-color: var(--clr-primary);
  font-weight: 600;
}

.container {
  max-width: 960px;
  margin: 0 auto;
  padding: 1.5rem 1rem;
}

/* ── Tab panels ─────────────────────────────────────────────────────── */
.tab-panel { display: none; }
.tab-panel.active { display: block; }

/* ── Card ───────────────────────────────────────────────────────────── */
.card {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1.25rem;
  margin-bottom: 1.25rem;
}
.card h2 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: .75rem;
  color: var(--clr-text);
}
.card h3 {
  font-size: .9rem;
  font-weight: 600;
  margin-bottom: .5rem;
  color: var(--clr-muted);
  text-transform: uppercase;
  letter-spacing: .04em;
}

/* ── Timer display ──────────────────────────────────────────────────── */
.timer-display {
  font-size: 3rem;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  text-align: center;
  letter-spacing: .05em;
  padding: .5rem 0;
  color: var(--clr-text);
}
.timer-display.running { color: var(--clr-success); }

/* ── Buttons ────────────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  border: none;
  border-radius: var(--radius);
  padding: .5rem 1.1rem;
  font-size: .95rem;
  font-weight: 500;
  transition: background .15s, box-shadow .15s;
  box-shadow: var(--shadow);
}
.btn:disabled { opacity: .45; cursor: not-allowed; }
.btn-primary  { background: var(--clr-primary);  color: #fff; }
.btn-primary:hover:not(:disabled)  { background: var(--clr-primary-dk); }
.btn-success  { background: var(--clr-success);  color: #fff; }
.btn-success:hover:not(:disabled)  { background: #15803d; }
.btn-danger   { background: var(--clr-danger);   color: #fff; }
.btn-danger:hover:not(:disabled)   { background: #b91c1c; }
.btn-secondary { background: var(--clr-border); color: var(--clr-text); }
.btn-secondary:hover:not(:disabled){ background: #cbd5e1; }
.btn-icon {
  background: none;
  border: none;
  padding: .25rem .4rem;
  border-radius: .25rem;
  font-size: .85rem;
  box-shadow: none;
}
.btn-icon:hover { background: var(--clr-border); }
.btn-icon.del { color: var(--clr-danger); }
.btn-icon.edit { color: var(--clr-primary); }

/* ── Forms ──────────────────────────────────────────────────────────── */
.form-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: .75rem;
  margin-bottom: .75rem;
}
.form-group { display: flex; flex-direction: column; gap: .3rem; }
.form-group label { font-size: .85rem; font-weight: 500; color: var(--clr-muted); }
.form-control {
  border: 1px solid var(--clr-border);
  border-radius: .375rem;
  padding: .45rem .7rem;
  font-size: .95rem;
  color: var(--clr-text);
  background: var(--clr-surface);
  transition: border-color .15s, box-shadow .15s;
}
.form-control:focus {
  outline: none;
  border-color: var(--clr-primary);
  box-shadow: 0 0 0 3px rgba(37,99,235,.15);
}
.form-actions { display: flex; gap: .6rem; flex-wrap: wrap; }

/* ── Tables ─────────────────────────────────────────────────────────── */
.table-wrap { overflow-x: auto; }
table {
  width: 100%;
  border-collapse: collapse;
  font-size: .9rem;
}
th {
  text-align: left;
  padding: .55rem .75rem;
  background: var(--clr-bg);
  border-bottom: 2px solid var(--clr-border);
  font-weight: 600;
  color: var(--clr-muted);
  font-size: .8rem;
  text-transform: uppercase;
  letter-spacing: .04em;
  white-space: nowrap;
}
td {
  padding: .55rem .75rem;
  border-bottom: 1px solid var(--clr-border);
  vertical-align: middle;
}
tr:last-child td { border-bottom: none; }
tr:hover td { background: #f1f5f9; }
.td-actions { white-space: nowrap; text-align: right; }
tr.soft-deleted td {
  text-decoration: line-through;
  color: var(--clr-muted);
  opacity: 0.75;
}

/* ── Status badges ──────────────────────────────────────────────────── */
.badge {
  display: inline-block;
  border-radius: 9999px;
  padding: .15rem .65rem;
  font-size: .75rem;
  font-weight: 600;
}
.badge-success { background: #dcfce7; color: var(--clr-success); }
.badge-danger  { background: #fee2e2; color: var(--clr-danger); }
.badge-warning { background: #fef3c7; color: var(--clr-warning); }
.badge-info    { background: #dbeafe; color: var(--clr-primary); }
.badge-running { background: #dcfce7; color: var(--clr-success); animation: pulse 1.5s infinite; }

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50%       { opacity: .5; }
}

/* ── Stats row ──────────────────────────────────────────────────────── */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: .75rem;
  margin-bottom: 1rem;
}
.stat-card {
  background: var(--clr-bg);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius);
  padding: .75rem 1rem;
  text-align: center;
}
.stat-card .stat-value {
  font-size: 1.5rem;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
}
.stat-card .stat-label {
  font-size: .75rem;
  color: var(--clr-muted);
  margin-top: .15rem;
}
.stat-value.positive { color: var(--clr-success); }
.stat-value.negative { color: var(--clr-danger); }
.stat-value.neutral  { color: var(--clr-text); }

/* ── Period selector ────────────────────────────────────────────────── */
.period-nav {
  display: flex;
  align-items: center;
  gap: .6rem;
  margin-bottom: 1rem;
}
.period-nav .period-label {
  font-weight: 600;
  font-size: 1rem;
  min-width: 180px;
  text-align: center;
}

/* ── Config grid for weekdays ───────────────────────────────────────── */
.weekday-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
  gap: .75rem;
}
.weekday-item label { font-size: .85rem; font-weight: 500; margin-bottom: .3rem; display: block; }
.weekday-item input { width: 100%; }

/* ── Toast notifications ────────────────────────────────────────────── */
.toast-container {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  z-index: 999;
  display: flex;
  flex-direction: column;
  gap: .5rem;
  pointer-events: none;
}
.toast {
  background: var(--clr-text);
  color: #fff;
  padding: .65rem 1rem;
  border-radius: var(--radius);
  box-shadow: var(--shadow-md);
  font-size: .9rem;
  max-width: 320px;
  pointer-events: all;
  animation: slide-in .2s ease;
}
.toast.success { background: var(--clr-success); }
.toast.error   { background: var(--clr-danger); }
@keyframes slide-in {
  from { transform: translateX(120%); opacity: 0; }
  to   { transform: none; opacity: 1; }
}

/* ── Loader ─────────────────────────────────────────────────────────── */
.loader {
  text-align: center;
  padding: 2rem;
  color: var(--clr-muted);
  font-size: .9rem;
}

/* ── Responsive tweaks ──────────────────────────────────────────────── */
@media (max-width: 600px) {
  .timer-display { font-size: 2.2rem; }
  .form-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
}

/* ── Utility ────────────────────────────────────────────────────────── */
.text-right { text-align: right; }
.text-center { text-align: center; }
.mt-1 { margin-top: .5rem; }
.mb-1 { margin-bottom: .5rem; }
.row { display: flex; align-items: center; gap: .75rem; flex-wrap: wrap; }
.spacer { flex: 1; }
.hidden { display: none !important; }