:root {
  --bg: #0f1419;
  --bg-2: #1a1f2e;
  --bg-3: #232a3a;
  --border: #2a3346;
  --text: #e4e8ef;
  --text-dim: #8b95a8;
  --accent: #4ade80;
  --accent-2: #22d3ee;
  --danger: #f87171;
  --warning: #fbbf24;
  --radius: 12px;
  --shadow: 0 4px 20px rgba(0,0,0,.35);
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: 'Inter', -apple-system, system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  line-height: 1.5;
}

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

.topbar {
  display: flex; align-items: center; gap: 16px;
  padding: 14px 24px;
  background: linear-gradient(135deg, #1a1f2e, #0f1419);
  border-bottom: 1px solid var(--border);
  position: sticky; top: 0; z-index: 10;
  backdrop-filter: blur(8px);
}
.brand {
  font-weight: 700; font-size: 18px; color: var(--accent);
  letter-spacing: -.02em;
}
.brand:hover { text-decoration: none; color: var(--accent-2); }
.topbar .user { color: var(--text-dim); font-size: 14px; }
.topbar .logout { margin-left: auto; color: var(--danger); font-size: 14px; }

.container {
  max-width: 1280px; margin: 0 auto; padding: 24px 20px 60px;
}

/* Cards */
.card, .panel {
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow);
}
h1, h2, h3 { margin: 0 0 16px; letter-spacing: -.02em; }
h1 { font-size: 26px; }
h2 { font-size: 20px; }

/* Buttons */
button, .btn {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 9px 16px;
  background: var(--bg-3);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 8px;
  font: inherit; font-size: 14px;
  cursor: pointer;
  transition: .15s ease;
  text-decoration: none;
}
button:hover, .btn:hover {
  background: #2e384e;
  border-color: #3a4560;
  text-decoration: none;
}
.btn-primary, button[type="submit"] {
  background: var(--accent); color: #06231a; border-color: transparent;
  font-weight: 600;
}
.btn-primary:hover, button[type="submit"]:hover {
  background: #34c96e; color: #06231a;
}
.btn-danger { background: var(--danger); color: #2b0606; font-weight: 600; }

/* Inputs */
input, select, textarea {
  padding: 9px 12px;
  background: var(--bg);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 8px;
  font: inherit; font-size: 14px;
  outline: none;
  transition: border-color .15s;
}
input:focus, select:focus, textarea:focus {
  border-color: var(--accent-2);
  box-shadow: 0 0 0 3px rgba(34,211,238,.15);
}
label { font-size: 13px; color: var(--text-dim); }

/* Forms */
.form-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 14px;
}
.form-grid label { display: flex; flex-direction: column; gap: 6px; }

/* Toolbar */
.toolbar {
  display: flex; align-items: center; gap: 12px;
  margin: 20px 0; flex-wrap: wrap;
}
.toolbar h1, .toolbar h2 { margin: 0; flex: 1; }

/* Login */
.login-card { max-width: 380px; margin: 80px auto; }
.login-card h1 { text-align: center; margin-bottom: 24px; }
.login-card label { display: block; margin-bottom: 14px; }
.login-card input { width: 100%; margin-top: 4px; }
.login-card button { width: 100%; padding: 11px; margin-top: 8px; }
.error {
  color: var(--danger);
  background: rgba(248,113,113,.1);
  padding: 10px 14px;
  border-radius: 8px;
  border: 1px solid rgba(248,113,113,.3);
  margin-bottom: 14px;
  font-size: 14px;
}

/* Menu (landing) */
.menu-grid {
  display: grid; gap: 16px;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  margin-top: 24px;
}
.menu-card {
  display: flex; flex-direction: column; gap: 8px;
  padding: 24px;
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: .15s ease;
}
.menu-card:hover {
  background: var(--bg-3);
  border-color: var(--accent);
  transform: translateY(-2px);
  text-decoration: none;
}
.menu-card h3 { color: var(--text); margin: 0; font-size: 17px; }
.menu-card p { color: var(--text-dim); font-size: 13px; margin: 0; }
.menu-card .icon { font-size: 28px; }

/* Calendar */
.calendar {
  width: 100%;
  border-collapse: separate;
  border-spacing: 6px;
}
.calendar th {
  background: var(--bg-3);
  padding: 10px;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: .05em;
  border-radius: 6px;
}
.calendar td {
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px;
  vertical-align: top;
  height: 110px;
  width: 14.28%;
  transition: .15s;
}
.calendar td.empty { background: transparent; border: none; }
.calendar td.today {
  border-color: var(--accent-2);
  box-shadow: 0 0 0 2px rgba(34,211,238,.25);
}
.calendar td.weekend { background: #14192a; }
.day-num { font-weight: 700; margin-bottom: 4px; font-size: 14px; }
.day-content { font-size: 12px; color: var(--text-dim); }
.day-content b { color: var(--accent); font-weight: 600; }
.day-link {
  display: inline-block;
  margin-top: 6px;
  padding: 4px 8px;
  font-size: 11px;
  background: var(--bg-3);
  border-radius: 6px;
  color: var(--text-dim);
}
.day-link:hover { background: var(--accent); color: #06231a; text-decoration: none; }

/* Badges */
.badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 600;
}
.badge.worked { background: rgba(74,222,128,.15); color: var(--accent); }
.badge.sick_leave { background: rgba(248,113,113,.15); color: var(--danger); }
.badge.unpaid_leave { background: rgba(251,191,36,.15); color: var(--warning); }

/* Tables */
table.analytics {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  background: var(--bg-2);
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
}
table.analytics th {
  background: var(--bg-3);
  padding: 12px 14px;
  text-align: left;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: .04em;
  border-bottom: 1px solid var(--border);
}
table.analytics td {
  padding: 12px 14px;
  border-bottom: 1px solid var(--border);
  font-size: 14px;
}
table.analytics tr:last-child td { border-bottom: none; }
table.analytics tr:hover td { background: rgba(255,255,255,.02); }

.neg { color: var(--danger); font-weight: 600; }
.pos { color: var(--accent); font-weight: 600; }
.dim { color: var(--text-dim); }

/* Period form */
.period-form {
  display: flex; flex-wrap: wrap; gap: 12px; align-items: end;
  padding: 18px;
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin: 16px 0;
}
.period-form label {
  display: flex; flex-direction: column; gap: 6px; font-size: 12px;
}
.period-form .quick { display: flex; gap: 8px; margin-left: auto; }
.btn-quick {
  padding: 7px 12px;
  background: var(--bg-3);
  border-radius: 6px;
  font-size: 13px;
  color: var(--text);
}
.period-label {
  color: var(--text-dim);
  font-size: 13px;
  margin: 8px 0 16px;
}
.period-label b { color: var(--text); }

/* Segments (day edit) */
.segment-row {
  display: grid;
  grid-template-columns: 1fr 1fr auto;
  gap: 10px;
  margin-bottom: 10px;
  align-items: center;
}
.segment-row input[type=time] { font-family: monospace; }
.remove-seg {
  background: transparent;
  border: 1px solid var(--danger);
  color: var(--danger);
  padding: 6px 10px;
  border-radius: 6px;
}
.remove-seg:hover { background: rgba(248,113,113,.15); }

.day-header {
  display: flex; align-items: center; gap: 16px; margin-bottom: 20px;
}
.day-header h1 { margin: 0; flex: 1; }

/* Misc */
hr { border: none; border-top: 1px solid var(--border); margin: 32px 0; }
.empty-state {
  text-align: center; padding: 40px; color: var(--text-dim);
  font-size: 14px;
}