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

:root {
  --bg:           #0d0d0d;
  --surface:      #161616;
  --surface-2:    #1e1e1e;
  --border:       #2a2a2a;
  --border-gold:  rgba(200,169,81,0.25);
  --text:         #f0ede6;
  --text-2:       #5a5550;
  --accent:       #c8a951;
  --accent-dim:   #8c7435;
  --accent-fg:    #0d0d0d;
  --red:          #c0392b;
  --red-fg:       #f0ede6;
  --holiday-bg:   #1a1600;
  --holiday-bd:   #3d3000;
  --closure-bg:   #1a0a0a;
  --closure-bd:   #3d1010;
  --r:            4px;
  --r-sm:         3px;
  --r-pill:       3px;
  --shadow:       4px 4px 0 rgba(200,169,81,0.12);
  --shadow-hover: 6px 6px 0 rgba(200,169,81,0.22);
  --ease:         120ms ease;

  /* Geometric stripe pattern */
  --stripe: repeating-linear-gradient(
    -45deg,
    transparent,
    transparent 6px,
    rgba(200,169,81,0.025) 6px,
    rgba(200,169,81,0.025) 7px
  );
}

body {
  font-family: 'Space Grotesk', system-ui, sans-serif;
  font-size: 14px;
  color: var(--text);
  background: var(--bg);
  background-image: var(--stripe);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
}

/* ── Header ──────────────────────────────────────────── */
header {
  padding: 12px 32px 12px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: relative;
  background: var(--bg);
  overflow: hidden;
}

.header-graphic {
  flex-shrink: 0;
  width: 200px;
  height: 160px;
  opacity: 0.92;
  margin-right: -8px;
}

header h1 {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 38px;
  font-weight: 400;
  letter-spacing: 0.08em;
  color: var(--accent);
  line-height: 1;
  position: relative;
  z-index: 1;
}

/* Gold underline bar on header title */
header h1::after {
  content: '';
  display: block;
  width: 40%;
  height: 2px;
  background: var(--accent);
  margin-top: 4px;
  opacity: 0.5;
}

/* ── Tabs ────────────────────────────────────────────── */
.tabs {
  display: flex;
  gap: 0;
  padding: 0 32px;
  border-bottom: 1px solid var(--border);
  background: var(--surface);
}
.tab-btn {
  padding: 13px 22px;
  border: none;
  background: transparent;
  cursor: pointer;
  border-radius: 0;
  font-family: 'Bebas Neue', sans-serif;
  font-size: 15px;
  font-weight: 400;
  letter-spacing: 0.12em;
  color: var(--text-2);
  transition: color var(--ease), border-color var(--ease);
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
}
.tab-btn:hover:not(.active) { color: var(--text); }
.tab-btn.active {
  color: var(--accent);
  border-bottom-color: var(--accent);
  background: transparent;
}

/* ── Content ─────────────────────────────────────────── */
.tab-content {
  background: transparent;
  min-height: calc(100vh - 100px);
  padding: 32px;
}
.hidden { display: none; }

/* ── Buttons ─────────────────────────────────────────── */
button {
  cursor: pointer;
  padding: 7px 16px;
  border-radius: var(--r);
  border: 1px solid var(--border);
  background: var(--surface);
  font-family: 'Space Grotesk', sans-serif;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--text);
  transition: background var(--ease), border-color var(--ease), box-shadow var(--ease);
  white-space: nowrap;
}
button:hover {
  background: var(--surface-2);
  border-color: var(--accent-dim);
}
button.primary {
  background: var(--accent);
  color: var(--accent-fg);
  border-color: var(--accent);
  font-weight: 700;
}
button.primary:hover {
  background: #d4b55c;
  border-color: #d4b55c;
  box-shadow: var(--shadow-hover);
}
button.danger {
  background: var(--red);
  color: var(--red-fg);
  border-color: var(--red);
}
button.danger:hover { opacity: 0.84; }

/* ── Inputs & Selects ────────────────────────────────── */
input, select {
  padding: 7px 11px;
  border: 1px solid var(--border);
  border-radius: var(--r-sm);
  font-family: 'Space Grotesk', sans-serif;
  font-size: 13px;
  color: var(--text);
  background: var(--surface);
  outline: none;
  transition: border-color var(--ease), box-shadow var(--ease);
}
input:focus, select:focus {
  border-color: var(--accent-dim);
  box-shadow: 0 0 0 2px rgba(200,169,81,0.15);
}
input::placeholder { color: var(--text-2); }
select option { background: var(--surface-2); color: var(--text); }

/* ── Table ───────────────────────────────────────────── */
table { border-collapse: collapse; width: 100%; }
th {
  text-align: left;
  padding: 10px 14px;
  background: var(--surface);
  font-family: 'Bebas Neue', sans-serif;
  font-size: 13px;
  font-weight: 400;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent);
  border-bottom: 1px solid var(--border-gold);
}
td {
  text-align: left;
  padding: 10px 14px;
  border-bottom: 1px solid var(--border);
  font-size: 13px;
  color: var(--text);
}
tr:last-child td { border-bottom: none; }
tbody tr:hover td { background: var(--surface); }

/* ── Utilities ───────────────────────────────────────── */
.section-title {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 22px;
  font-weight: 400;
  letter-spacing: 0.1em;
  color: var(--accent);
  margin-bottom: 22px;
  text-transform: uppercase;
  position: relative;
  padding-left: 12px;
}
.section-title::before {
  content: '';
  position: absolute;
  left: 0;
  top: 10%;
  height: 80%;
  width: 3px;
  background: var(--accent);
}
.row {
  display: flex;
  gap: 8px;
  align-items: center;
  margin-bottom: 12px;
  flex-wrap: wrap;
}

/* ── Calendar ────────────────────────────────────────── */
.calendar-outer { overflow-x: auto; }
.calendar-header-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 5px;
  margin-bottom: 5px;
}
.calendar-body-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 5px;
}

.cal-header-cell {
  text-align: center;
  font-family: 'Bebas Neue', sans-serif;
  font-size: 13px;
  font-weight: 400;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent);
  padding: 6px 4px;
  border-bottom: 1px solid var(--border-gold);
}

.cal-day {
  border: 1px solid var(--border);
  border-radius: var(--r);
  padding: 9px;
  background: var(--surface);
  min-height: 88px;
  transition: box-shadow var(--ease), border-color var(--ease);
  position: relative;
  overflow: hidden;
}
/* Subtle corner accent on calendar cells */
.cal-day:not(.empty-cell)::after {
  content: '';
  position: absolute;
  top: 0; right: 0;
  width: 0; height: 0;
  border-style: solid;
  border-width: 0 8px 8px 0;
  border-color: transparent var(--border) transparent transparent;
}
.cal-day:not(.empty-cell):not(.weekend):hover {
  box-shadow: var(--shadow-hover);
  border-color: var(--border-gold);
}
.cal-day:not(.empty-cell):not(.weekend):hover::after {
  border-color: transparent var(--accent-dim) transparent transparent;
}
.cal-day.weekend {
  background: var(--bg);
  color: var(--text-2);
  border-color: var(--border);
  opacity: 0.5;
}
.cal-day.holiday  { background: var(--holiday-bg); border-color: var(--holiday-bd); }
.cal-day.closure  { background: var(--closure-bg); border-color: var(--closure-bd); }
.cal-day.empty-cell { border: none; background: transparent; min-height: 0; }

.day-num {
  font-family: 'Bebas Neue', sans-serif;
  font-weight: 400;
  font-size: 17px;
  letter-spacing: 0.04em;
  color: var(--text);
  display: flex;
  align-items: baseline;
  gap: 5px;
}
.day-tag { font-size: 10px; color: var(--accent); font-weight: 600; font-family: 'Space Grotesk', sans-serif; letter-spacing: 0.06em; text-transform: uppercase; }

.cal-day select {
  width: 100%;
  margin-top: 6px;
  font-size: 11px;
  padding: 4px 7px;
  border-radius: var(--r-sm);
  background: var(--surface-2);
  border-color: var(--border);
  color: var(--text);
}
.cal-btn-row {
  margin-top: 5px;
  display: flex;
  gap: 4px;
}
.cal-day .cal-btn-row button {
  font-size: 9px;
  padding: 2px 7px;
  border-radius: var(--r);
  color: var(--text-2);
  font-weight: 600;
  background: var(--surface-2);
  border-color: var(--border);
  letter-spacing: 0.06em;
}
.cal-day .cal-btn-row button:hover { color: var(--accent); border-color: var(--accent-dim); background: var(--surface-2); }

.cal-day-tag-label {
  font-size: 10px;
  margin-top: 5px;
  color: var(--text-2);
  display: flex;
  align-items: center;
  gap: 4px;
}
.cal-day-tag-label button {
  font-size: 9px;
  padding: 1px 5px;
  border-radius: var(--r);
  color: var(--text-2);
  background: var(--surface-2);
  border-color: var(--border);
}

/* ── Employees ───────────────────────────────────────── */
.employee-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 13px 0;
  border-bottom: 1px solid var(--border);
}
.employee-name { font-weight: 600; flex: 1; font-size: 14px; color: var(--text); }

.constraint-form {
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 18px 20px;
  border-radius: var(--r);
  margin: 4px 0 14px;
  border-left: 3px solid var(--accent-dim);
}
.constraint-form label {
  display: block;
  margin-bottom: 7px;
  font-family: 'Bebas Neue', sans-serif;
  font-size: 13px;
  font-weight: 400;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent);
}
.constraint-row { margin-bottom: 18px; }

.day-toggle-group { display: flex; gap: 4px; }
.day-toggle {
  width: 34px;
  height: 34px;
  border-radius: var(--r);
  border: 1px solid var(--border);
  background: var(--surface-2);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.02em;
  cursor: pointer;
  transition: background var(--ease), border-color var(--ease), color var(--ease);
  color: var(--text-2);
  text-transform: uppercase;
}
.day-toggle:hover:not(.active) { background: var(--surface); border-color: var(--border-gold); color: var(--text); }
.day-toggle.active {
  background: var(--accent);
  color: var(--accent-fg);
  border-color: var(--accent);
  font-weight: 800;
}

/* ── Calendar legend ─────────────────────────────────── */
.cal-legend {
  font-size: 11px;
  color: var(--text-2);
  margin-bottom: 16px;
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 600;
}
.cal-legend span { display: flex; align-items: center; gap: 6px; }
.cal-legend-dot {
  width: 8px; height: 8px; border-radius: 1px;
  display: inline-block;
}

/* ── Scrollbar ───────────────────────────────────────── */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 2px; }
::-webkit-scrollbar-thumb:hover { background: var(--accent-dim); }