/* ShiftLogix dashboard — zero-dependency responsive styles.
   Desktop-optimized dense data grids for managers/admins; a mobile-friendly
   punch view for employees via media queries. No external fonts or CDNs. */

:root {
  --bg: #0f172a;
  --panel: #1e293b;
  --panel-2: #273449;
  --line: #334155;
  --text: #e2e8f0;
  --muted: #94a3b8;
  --accent: #38bdf8;
  --accent-2: #0ea5e9;
  --ok: #22c55e;
  --warn: #f59e0b;
  --danger: #ef4444;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
}

/* ---------------------------- Header / nav ---------------------------- */
.app-header {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 0.5rem 1rem;
  background: var(--panel);
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
  z-index: 10;
  flex-wrap: wrap;
}
.brand { display: flex; align-items: center; gap: 0.5rem; }
.brand-name { font-weight: 700; letter-spacing: 0.02em; }
.brand-lg h1 { margin: 0; font-size: 1.5rem; }
.app-nav { display: flex; gap: 0.25rem; flex: 1; flex-wrap: wrap; }
.nav-btn {
  background: transparent;
  color: var(--muted);
  border: 1px solid transparent;
  padding: 0.4rem 0.7rem;
  border-radius: 6px;
  cursor: pointer;
  font-size: 0.85rem;
}
.nav-btn:hover { color: var(--text); background: var(--panel-2); }
.nav-btn.active { color: var(--bg); background: var(--accent); font-weight: 600; }
.header-right { display: flex; align-items: center; gap: 0.6rem; }
.user-chip { font-size: 0.8rem; color: var(--muted); }
.conn-badge {
  font-size: 0.7rem;
  padding: 0.15rem 0.5rem;
  border-radius: 999px;
  background: var(--panel-2);
  color: var(--muted);
  border: 1px solid var(--line);
}
.conn-badge.online { color: var(--ok); border-color: var(--ok); }

/* -------------------------- Landing + auth ---------------------------- */
.landing-wrap {
  min-height: 100vh;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 2rem;
  padding: 2rem 1rem;
}
.hero {
  max-width: 460px;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}
.hero-tagline { margin: 0; font-size: 1.15rem; color: var(--text); font-weight: 600; }
.hero-sub { margin: 0; color: var(--muted); font-size: 0.95rem; line-height: 1.5; }
.auth-card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 1.5rem;
  width: 100%;
  max-width: 380px;
}
.auth-tabs {
  display: flex;
  gap: 0.25rem;
  margin-bottom: 1rem;
  border-bottom: 1px solid var(--line);
}
.auth-tab {
  flex: 1;
  background: none;
  border: none;
  color: var(--muted);
  padding: 0.6rem 0.5rem;
  font-size: 0.95rem;
  cursor: pointer;
  border-bottom: 2px solid transparent;
}
.auth-tab.active { color: var(--text); border-bottom-color: var(--accent); }
.auth-form { display: flex; flex-direction: column; gap: 0.75rem; }

label { display: flex; flex-direction: column; gap: 0.25rem; font-size: 0.85rem; color: var(--muted); }
label.inline { flex-direction: row; align-items: center; gap: 0.4rem; }
input, select {
  background: var(--panel-2);
  border: 1px solid var(--line);
  color: var(--text);
  padding: 0.5rem;
  border-radius: 6px;
  font-size: 0.9rem;
}
input:focus, select:focus { outline: 2px solid var(--accent); border-color: var(--accent); }

/* ------------------------------ Buttons ------------------------------- */
.btn-primary {
  background: var(--accent-2);
  color: #fff;
  border: none;
  padding: 0.6rem 1rem;
  border-radius: 6px;
  cursor: pointer;
  font-weight: 600;
}
.btn-primary:hover { background: var(--accent); }
.btn-ghost {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--line);
  padding: 0.4rem 0.7rem;
  border-radius: 6px;
  cursor: pointer;
  font-size: 0.8rem;
}
.btn-ghost:hover { background: var(--panel-2); }

/* ----------------------------- App shell ------------------------------ */
.app-shell { padding: 1rem; max-width: 1400px; margin: 0 auto; }
.view { margin-bottom: 1rem; }
.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 1rem;
}
.panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
  flex-wrap: wrap;
}
.panel-head h2 { margin: 0; font-size: 1.1rem; }
.range-controls { display: flex; gap: 0.5rem; align-items: center; flex-wrap: wrap; }
.range-controls label { flex-direction: row; align-items: center; gap: 0.3rem; }

/* -------------------------- Punch panel/state ------------------------- */
.punch-panel { display: flex; flex-direction: column; gap: 1rem; }
.state-block { display: flex; align-items: center; gap: 0.75rem; }
.state-dot {
  width: 18px; height: 18px; border-radius: 50%;
  background: var(--muted); box-shadow: 0 0 0 4px rgba(148,163,184,0.15);
}
.state-dot.off { background: var(--muted); box-shadow: 0 0 0 4px rgba(148,163,184,0.15); }
.state-dot.on_shift { background: var(--ok); box-shadow: 0 0 0 4px rgba(34,197,94,0.2); }
.state-dot.on_break { background: var(--warn); box-shadow: 0 0 0 4px rgba(245,158,11,0.2); }
.state-label { font-size: 1.2rem; font-weight: 700; }
.state-sub { color: var(--muted); font-size: 0.85rem; }

.punch-buttons {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.75rem;
}
.btn-punch {
  padding: 1.1rem;
  border-radius: 10px;
  border: none;
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  color: #fff;
}
.btn-punch:disabled { opacity: 0.4; cursor: not-allowed; }
.btn-punch.clock-in { background: var(--ok); }
.btn-punch.break-start { background: var(--warn); }
.btn-punch.break-end { background: var(--accent-2); }
.btn-punch.clock-out { background: var(--danger); }
.punch-meta { display: flex; gap: 1rem; flex-wrap: wrap; align-items: center; }

/* ------------------------------ Data grid ----------------------------- */
.grid-scroll { overflow-x: auto; border: 1px solid var(--line); border-radius: 8px; }
.data-grid {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
}
.data-grid.dense { font-size: 0.78rem; }
.data-grid th, .data-grid td {
  text-align: left;
  padding: 0.5rem 0.6rem;
  border-bottom: 1px solid var(--line);
  white-space: nowrap;
}
.data-grid.dense th, .data-grid.dense td { padding: 0.3rem 0.5rem; }
.data-grid thead th {
  background: var(--panel-2);
  position: sticky;
  top: 0;
  cursor: pointer;
  user-select: none;
}
.data-grid thead th.sortable::after { content: " ⇅"; color: var(--muted); font-size: 0.7rem; }
.data-grid thead th.sort-asc::after { content: " ▲"; color: var(--accent); }
.data-grid thead th.sort-desc::after { content: " ▼"; color: var(--accent); }
.data-grid tbody tr:hover { background: var(--panel-2); }

.badge {
  display: inline-block;
  padding: 0.1rem 0.4rem;
  border-radius: 4px;
  font-size: 0.72rem;
  font-weight: 600;
}
.badge.clock_in { background: rgba(34,197,94,0.2); color: var(--ok); }
.badge.break_start { background: rgba(245,158,11,0.2); color: var(--warn); }
.badge.break_end { background: rgba(56,189,248,0.2); color: var(--accent); }
.badge.clock_out { background: rgba(239,68,68,0.2); color: var(--danger); }
.badge.adj { background: rgba(148,163,184,0.25); color: var(--muted); margin-left: 0.3rem; }

/* ------------------------------ Forms --------------------------------- */
.stack-form { display: flex; flex-direction: column; gap: 0.6rem; max-width: 520px; margin-top: 1rem; }
.stack-form h3 { margin: 0.5rem 0 0; }
.row-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0.5rem; }
.form-actions { display: flex; gap: 0.5rem; }
.form-error { color: var(--danger); font-size: 0.85rem; margin: 0.25rem 0 0; min-height: 1em; }
.form-note { color: var(--muted); font-size: 0.85rem; margin: 0.25rem 0 0; min-height: 1em; }
.summary-line { color: var(--muted); font-size: 0.85rem; margin-bottom: 0.5rem; }

/* --------------------------- Monitor feed ----------------------------- */
.monitor-feed { display: flex; flex-direction: column; gap: 0.4rem; max-height: 60vh; overflow-y: auto; }
.monitor-item {
  display: flex; align-items: center; gap: 0.6rem;
  padding: 0.5rem 0.7rem;
  background: var(--panel-2);
  border-radius: 8px;
  border-left: 3px solid var(--accent);
  animation: flash 0.6s ease-out;
}
.monitor-item .mono-time { color: var(--muted); font-size: 0.75rem; margin-left: auto; }
.empty { color: var(--muted); }
@keyframes flash { from { background: rgba(56,189,248,0.25); } to { background: var(--panel-2); } }

/* ---------------------------- Responsive ------------------------------ */
@media (max-width: 640px) {
  .app-nav { order: 3; width: 100%; }
  .header-right { margin-left: auto; }
  .punch-buttons { grid-template-columns: 1fr 1fr; }
  .row-3 { grid-template-columns: 1fr; }
  .brand-name { display: none; }
}
@media (min-width: 900px) {
  .punch-panel { max-width: 680px; }
}