/* ============================================================
   MANUFACTURER ERP — DESIGN SYSTEM
   Theme: industrial control-panel. Deep steel navy + amber
   signal accent, mono numerals for anything financial/numeric.
   ============================================================ */

:root {
  /* Palette */
  --navy-900: #101B26;
  --navy-800: #16232F;
  --navy-700: #1C2B39;
  --steel-500: #4A7A96;
  --steel-300: #8FB4C9;
  --amber-500: #E8912D;
  --amber-600: #CE7A1B;
  --bg: #F3F5F7;
  --surface: #FFFFFF;
  --border: #E2E7EB;
  --text: #1C2B39;
  --text-muted: #64707A;
  --success: #3E8E5A;
  --danger: #C0463C;
  --danger-bg: #FBEAE8;
  --success-bg: #EAF5EE;

  /* Type */
  --font-display: 'Sora', sans-serif;
  --font-body: 'Inter', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  --radius: 10px;
  --shadow: 0 1px 2px rgba(16,27,38,0.06), 0 4px 16px rgba(16,27,38,0.05);
}

/* ---------- Dark theme ----------
   Toggled by setting data-theme="dark" on <html>.
   Sidebar/topbar stay the same deep navy in both themes (it already
   reads as "dark UI chrome"); what changes is the content area,
   cards, text and borders, so long data-entry sessions are easy
   on the eyes either way. */
html[data-theme="dark"] {
  --bg: #0F1720;
  --surface: #17222D;
  --border: #263543;
  --text: #E7EDF2;
  --text-muted: #93A3B0;
  --danger-bg: #3A1F1D;
  --success-bg: #1B3226;
  --shadow: 0 1px 2px rgba(0,0,0,0.3), 0 4px 20px rgba(0,0,0,0.35);
}
html[data-theme="dark"] input[type=text],
html[data-theme="dark"] input[type=number],
html[data-theme="dark"] input[type=email],
html[data-theme="dark"] input[type=password],
html[data-theme="dark"] input[type=tel],
html[data-theme="dark"] input[type=date],
html[data-theme="dark"] select,
html[data-theme="dark"] textarea {
  background: #0F1720; color: var(--text); border-color: var(--border);
}
html[data-theme="dark"] table tr:hover td { background: #1C2933; }
html[data-theme="dark"] .modal { background: var(--surface); }
html[data-theme="dark"] .badge-active,
html[data-theme="dark"] .badge-cr { color: #6FCB94; }
html[data-theme="dark"] .badge-dr { color: #E8837A; }

/* ---------- Theme toggle switch ---------- */
.theme-toggle {
  display: inline-flex; align-items: center; gap: 6px;
  width: 44px; height: 24px; border-radius: 20px; padding: 3px;
  background: var(--navy-900); border: 1px solid rgba(255,255,255,0.12);
  cursor: pointer; position: relative; flex-shrink: 0;
}
.theme-toggle .knob {
  width: 16px; height: 16px; border-radius: 50%; background: var(--amber-500);
  transition: transform 0.18s ease; transform: translateX(0);
}
html[data-theme="dark"] .theme-toggle .knob { transform: translateX(20px); }

/* ---------- Keyboard shortcuts help ---------- */
.shortcuts-hint {
  font-size: 11px; color: var(--text-muted);
  border: 1px solid var(--border); border-radius: 6px; padding: 2px 7px;
  cursor: pointer; background: var(--surface);
}
kbd {
  font-family: var(--font-mono); font-size: 11.5px;
  background: var(--bg); border: 1px solid var(--border); border-bottom-width: 2px;
  border-radius: 5px; padding: 1px 6px; color: var(--text);
}

* { box-sizing: border-box; }
html, body {
  margin: 0; padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 14px;
  -webkit-font-smoothing: antialiased;
}
h1, h2, h3, h4, .font-display { font-family: var(--font-display); letter-spacing: -0.01em; }
.mono, table td.num, .stat-value { font-family: var(--font-mono); font-variant-numeric: tabular-nums; }
a { color: inherit; text-decoration: none; }
:focus-visible { outline: 2px solid var(--amber-500); outline-offset: 2px; }

/* ---------- App shell ---------- */
.app-shell { display: flex; min-height: 100vh; }

.sidebar {
  width: 250px;
  flex-shrink: 0;
  background: var(--navy-800);
  color: #C9D6DF;
  display: flex;
  flex-direction: column;
  position: relative;
}
.sidebar::before {
  /* signature: a thin amber "control rail" running down the left edge */
  content: '';
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 3px;
  background: linear-gradient(180deg, var(--amber-500), transparent 60%);
}
.sidebar-brand {
  padding: 22px 20px 18px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 17px;
  color: #fff;
  border-bottom: 1px solid rgba(255,255,255,0.08);
  display: flex; align-items: center; gap: 10px;
}
.sidebar-brand .dot { width: 9px; height: 9px; border-radius: 50%; background: var(--amber-500); box-shadow: 0 0 0 3px rgba(232,145,45,0.2); }

.nav-group-label {
  font-size: 10.5px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: #6B7D8C;
  padding: 16px 20px 6px;
}
.nav-item {
  display: flex; align-items: center; gap: 11px;
  padding: 9px 20px;
  font-size: 13.5px;
  color: #B7C4CE;
  border-left: 3px solid transparent;
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
}
.nav-item svg { width: 17px; height: 17px; flex-shrink: 0; opacity: 0.85; }
.nav-item:hover { background: rgba(255,255,255,0.04); color: #fff; }
.nav-item.active {
  background: rgba(232,145,45,0.10);
  color: #fff;
  border-left-color: var(--amber-500);
  font-weight: 600;
}
.nav-item.disabled { color: #56636D; cursor: default; }
.nav-item.disabled:hover { background: transparent; color: #56636D; }
.nav-badge {
  margin-left: auto;
  font-size: 9.5px;
  padding: 1px 6px;
  border-radius: 20px;
  background: rgba(255,255,255,0.08);
  color: #8FA0AC;
  letter-spacing: 0.02em;
}

.sidebar-footer {
  margin-top: auto;
  padding: 14px 20px;
  border-top: 1px solid rgba(255,255,255,0.08);
  font-size: 12.5px;
  color: #8FA0AC;
}

/* ---------- Main area ---------- */
.main { flex: 1; min-width: 0; display: flex; flex-direction: column; }

.topbar {
  height: 62px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 24px;
}
.topbar h1 { font-size: 18px; margin: 0; }
.topbar .subtitle { font-size: 12.5px; color: var(--text-muted); margin-top: 1px; }
.user-chip { display: flex; align-items: center; gap: 10px; font-size: 13px; }
.user-avatar {
  width: 32px; height: 32px; border-radius: 50%;
  background: var(--steel-500); color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-display); font-weight: 600; font-size: 13px;
}
.user-role { font-size: 11px; color: var(--text-muted); }

.content { padding: 24px; flex: 1; }

/* ---------- Cards / stats ---------- */
.stat-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 16px; margin-bottom: 24px; }
.stat-card {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 18px 20px; box-shadow: var(--shadow); position: relative; overflow: hidden;
}
.stat-card .label { font-size: 12px; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.04em; }
.stat-value { font-size: 26px; font-weight: 600; margin-top: 6px; }
.stat-card .arc { position: absolute; right: -14px; top: -14px; width: 70px; height: 70px; border-radius: 50%; border: 8px solid var(--amber-500); opacity: 0.08; }

.card {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.card-header {
  padding: 16px 20px; border-bottom: 1px solid var(--border);
  display: flex; align-items: center; justify-content: space-between;
}
.card-header h2 { font-size: 15px; margin: 0; }
.card-body { padding: 20px; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 7px;
  font-family: var(--font-body); font-size: 13px; font-weight: 600;
  padding: 9px 16px; border-radius: 8px; border: 1px solid transparent;
  cursor: pointer; transition: all 0.15s;
}
.btn-primary { background: var(--navy-700); color: #fff; }
.btn-primary:hover { background: var(--navy-900); }
.btn-amber { background: var(--amber-500); color: #fff; }
.btn-amber:hover { background: var(--amber-600); }
.btn-outline { background: transparent; border-color: var(--border); color: var(--text); }
.btn-outline:hover { background: var(--bg); }
.btn-danger { background: var(--danger-bg); color: var(--danger); }
.btn-danger:hover { background: #f4d3d0; }
.btn-sm { padding: 5px 10px; font-size: 12px; }

/* ---------- Forms ---------- */
label { display: block; font-size: 12.5px; font-weight: 600; margin-bottom: 5px; color: var(--text); }
.form-group { margin-bottom: 16px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
input[type=text], input[type=number], input[type=email], input[type=password], input[type=tel], input[type=date], select, textarea {
  width: 100%; padding: 9px 12px; border: 1px solid var(--border); border-radius: 8px;
  font-family: var(--font-body); font-size: 13.5px; color: var(--text); background: #fff;
  transition: border-color 0.15s;
}
input:focus, select:focus, textarea:focus { border-color: var(--steel-500); outline: none; }
.help-text { font-size: 11.5px; color: var(--text-muted); margin-top: 4px; }

/* Date inputs render as a native "replaced" control in most browsers, which
   otherwise ignores our border-radius/padding and looks sharp-cornered next
   to the other fields. Forcing textfield appearance keeps the calendar icon
   but makes the box itself behave like a normal styled text input. */
input[type=date] {
  -webkit-appearance: textfield;
  appearance: textfield;
  min-height: 38px;
}
input[type=date]::-webkit-datetime-edit { color: var(--text); }
input[type=date]::-webkit-calendar-picker-indicator {
  cursor: pointer;
  opacity: 0.55;
  filter: invert(24%) sepia(14%) saturate(900%) hue-rotate(163deg);
  padding: 2px;
  border-radius: 4px;
}
input[type=date]::-webkit-calendar-picker-indicator:hover { opacity: 0.9; background: var(--bg); }
html[data-theme="dark"] input[type=date]::-webkit-calendar-picker-indicator { filter: invert(75%); }

/* ---------- Table ---------- */
table { width: 100%; border-collapse: collapse; }
table th {
  text-align: left; font-size: 11px; text-transform: uppercase; letter-spacing: 0.04em;
  color: var(--text-muted); padding: 10px 12px; border-bottom: 1px solid var(--border);
}
table td { padding: 12px; border-bottom: 1px solid var(--border); font-size: 13.5px; vertical-align: middle; }
table tr:hover td { background: #FAFBFC; }
table td.num, table th.num { text-align: right; }

.badge { display: inline-block; padding: 2px 9px; border-radius: 20px; font-size: 11px; font-weight: 600; }
.badge-dr { background: var(--danger-bg); color: var(--danger); }
.badge-cr { background: var(--success-bg); color: var(--success); }
.badge-active { background: var(--success-bg); color: var(--success); }
.badge-inactive { background: #EDEFF1; color: var(--text-muted); }

.empty-state { text-align: center; padding: 50px 20px; color: var(--text-muted); }
.empty-state svg { width: 44px; height: 44px; opacity: 0.35; margin-bottom: 10px; }

/* ---------- Alerts / flash ---------- */
.alert { padding: 12px 16px; border-radius: 8px; font-size: 13.5px; margin-bottom: 18px; }
.alert-success { background: var(--success-bg); color: var(--success); }
.alert-danger { background: var(--danger-bg); color: var(--danger); }

/* ---------- Modal ---------- */
.modal-backdrop {
  display: none; position: fixed; inset: 0; background: rgba(16,27,38,0.45);
  align-items: center; justify-content: center; z-index: 100;
}
.modal-backdrop.open { display: flex; }
.modal {
  background: #fff; border-radius: 12px; width: 480px; max-width: 92vw;
  max-height: 88vh; overflow-y: auto; box-shadow: 0 20px 60px rgba(16,27,38,0.3);
}
.modal-header { padding: 18px 22px; border-bottom: 1px solid var(--border); display: flex; justify-content: space-between; align-items: center; }
.modal-header h3 { margin: 0; font-size: 16px; }
.modal-close { cursor: pointer; color: var(--text-muted); font-size: 18px; background: none; border: none; }
.modal-body { padding: 22px; }
.modal-footer { padding: 16px 22px; border-top: 1px solid var(--border); display: flex; justify-content: flex-end; gap: 10px; }

/* ---------- Login page ---------- */
.login-shell { min-height: 100vh; display: flex; }
.login-visual {
  flex: 1.1; background: var(--navy-800); color: #fff; display: flex; flex-direction: column;
  justify-content: center; padding: 60px; position: relative; overflow: hidden;
}
.login-visual::after {
  content: ''; position: absolute; right: -80px; bottom: -80px; width: 260px; height: 260px;
  border-radius: 50%; border: 26px solid var(--amber-500); opacity: 0.08;
}
.login-visual h1 { font-size: 30px; max-width: 380px; line-height: 1.25; }
.login-visual p { color: #9FB0BB; max-width: 360px; font-size: 14px; line-height: 1.6; }
.login-form-side { flex: 1; display: flex; align-items: center; justify-content: center; background: var(--bg); }
.login-box { width: 340px; }
.login-box h2 { margin-bottom: 4px; }
.login-box .sub { color: var(--text-muted); font-size: 13px; margin-bottom: 26px; }

@media (max-width: 900px) {
  .login-visual { display: none; }
  .sidebar { position: fixed; left: -250px; top: 0; bottom: 0; z-index: 50; transition: left 0.2s; }
  .sidebar.open { left: 0; }
  .form-row { grid-template-columns: 1fr; }
}