/* =================================================================
   StockKeeper — stylesheet
   Palette: deep charcoal-navy sidebar, indigo accent, warm amber
   for stock warnings, mono face for SKUs/prices (data utility).
   ================================================================= */

:root {
  --ink:        #161A2B;
  --ink-soft:   #4B5165;
  --paper:      #F6F7FB;
  --surface:    #FFFFFF;
  --border:     #E4E7F0;
  --sidebar:    #11142A;
  --sidebar-soft: #1B2040;
  --primary:    #4D5BD9;
  --primary-dark: #3B47B8;
  --amber:      #C9791F;
  --amber-bg:   #FCEFDC;
  --green:      #1C8753;
  --green-bg:   #E3F5EA;
  --red:        #C13A3A;
  --red-bg:     #FBE9E9;
  --radius:     10px;
  --font-display: "Space Grotesk", "Segoe UI", Arial, sans-serif;
  --font-body: "Inter", "Segoe UI", Arial, sans-serif;
  --font-mono: "IBM Plex Mono", "Courier New", monospace;
}

@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@500;600;700&family=Inter:wght@400;500;600&family=IBM+Plex+Mono:wght@500&display=swap');

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: var(--font-body);
  background: var(--paper);
  color: var(--ink);
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3 { font-family: var(--font-display); margin: 0; }

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

:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

.mono { font-family: var(--font-mono); font-size: 0.92em; letter-spacing: -0.01em; }

/* ---------------- App shell ---------------- */

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

.sidebar {
  width: 248px;
  flex-shrink: 0;
  background: linear-gradient(180deg, var(--sidebar) 0%, var(--sidebar-soft) 100%);
  color: #E7E9F7;
  display: flex;
  flex-direction: column;
  padding: 24px 18px;
}

.sidebar-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 0 6px 28px;
  margin-bottom: 8px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.brand-mark {
  font-family: var(--font-display);
  font-weight: 700;
  background: var(--primary);
  color: #fff;
  width: 34px; height: 34px;
  display: flex; align-items: center; justify-content: center;
  border-radius: 8px;
  font-size: 0.95rem;
}

.brand-name {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.05rem;
  letter-spacing: -0.01em;
}

.sidebar-nav {
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin-top: 10px;
  flex-grow: 1;
}

.sidebar-nav a {
  color: #C7CBEA;
  padding: 10px 12px;
  border-radius: 8px;
  font-weight: 500;
  font-size: 0.94rem;
  display: flex;
  align-items: center;
  gap: 10px;
}

.nav-dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: currentColor;
  opacity: 0.6;
}

.sidebar-nav a:hover {
  background: rgba(255,255,255,0.06);
  text-decoration: none;
  color: #fff;
}

.sidebar-nav a.active {
  background: var(--primary);
  color: #fff;
}
.sidebar-nav a.active .nav-dot { opacity: 1; }

.sidebar-footer {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding-top: 16px;
  margin-top: 16px;
}

.user-chip {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 12px;
}

.user-avatar {
  width: 34px; height: 34px;
  border-radius: 50%;
  background: rgba(255,255,255,0.12);
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.9rem;
}

.user-name { font-size: 0.88rem; font-weight: 600; color: #fff; }

.role-badge {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 600;
  padding: 1px 8px;
  border-radius: 100px;
  margin-top: 2px;
  letter-spacing: 0.01em;
}
.role-super_admin { background: #4D5BD9; color: #fff; }
.role-admin       { background: #2F3360; color: #C7CBEA; }
.role-user        { background: rgba(255,255,255,0.1); color: #C7CBEA; }

.logout-link {
  font-size: 0.85rem;
  color: #9EA4CB;
}
.logout-link:hover { color: #fff; }

.sidebar-toggle {
  display: none;
}

/* ---------------- Main area ---------------- */

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

.topbar {
  padding: 26px 36px 0;
}

.topbar h1 {
  font-size: 1.5rem;
  font-weight: 600;
}

.content {
  padding: 20px 36px 48px;
  flex-grow: 1;
}

/* ---------------- Alerts ---------------- */

.alert {
  padding: 12px 16px;
  border-radius: var(--radius);
  font-size: 0.9rem;
  margin-bottom: 18px;
}
.alert-success { background: var(--green-bg); color: var(--green); }
.alert-error    { background: var(--red-bg); color: var(--red); }
.error-list { margin: 0; padding-left: 18px; }

/* ---------------- Toolbar ---------------- */

.toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 18px;
  flex-wrap: wrap;
}

.toolbar-hint { color: var(--ink-soft); font-size: 0.92rem; margin: 0; }

.search-form {
  display: flex;
  gap: 8px;
}

.search-form input {
  width: 280px;
}

/* ---------------- Buttons ---------------- */

.btn {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.88rem;
  padding: 9px 16px;
  border-radius: 8px;
  border: 1px solid transparent;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: background 0.15s, border-color 0.15s;
}
.btn:hover { text-decoration: none; }

.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); }

.btn-secondary { background: var(--surface); color: var(--ink); border-color: var(--border); }
.btn-secondary:hover { border-color: var(--primary); }

.btn-ghost { background: transparent; color: var(--ink-soft); }
.btn-ghost:hover { background: var(--paper); color: var(--ink); }

.btn-sm { padding: 5px 10px; font-size: 0.8rem; }
.btn-block { width: 100%; justify-content: center; }
.btn-danger-text { color: var(--red); }

.inline-form { display: inline; }

/* ---------------- Cards & tables ---------------- */

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
}

.table-card { padding: 0; overflow-x: auto; }

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}

.data-table th {
  text-align: left;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--ink-soft);
  padding: 14px 18px;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}

.data-table td {
  padding: 14px 18px;
  border-bottom: 1px solid var(--border);
  vertical-align: middle;
}

.data-table tr:last-child td { border-bottom: none; }
.data-table tr:hover td { background: var(--paper); }

.product-link { color: var(--ink); font-weight: 600; }
.product-link:hover { color: var(--primary); }

.price-final { color: var(--green); font-weight: 600; }

.row-actions { display: flex; gap: 4px; white-space: nowrap; }

.empty-state {
  text-align: center;
  color: var(--ink-soft);
  padding: 48px 18px !important;
}

/* Stock pills */
.stock-pill {
  display: inline-block;
  min-width: 34px;
  text-align: center;
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 0.82rem;
  padding: 2px 9px;
  border-radius: 100px;
}
.stock-ok     { background: var(--green-bg); color: var(--green); }
.stock-warn   { background: var(--amber-bg); color: var(--amber); }
.stock-danger { background: var(--red-bg); color: var(--red); }

/* Tags */
.tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  padding: 2px 9px;
  border-radius: 100px;
  margin-left: 6px;
}
.tag-ok     { background: var(--green-bg); color: var(--green); }
.tag-muted  { background: var(--paper); color: var(--ink-soft); }

/* ---------------- Detail page ---------------- */

.detail-card { margin-bottom: 16px; }

.detail-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 8px;
}

.detail-header h2 { font-size: 1.4rem; }
.detail-sub { color: var(--ink-soft); margin: 4px 0 0; font-size: 0.88rem; }
.detail-actions { display: flex; gap: 8px; }

.detail-description {
  color: var(--ink-soft);
  line-height: 1.6;
  margin: 18px 0 24px;
}

.detail-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 14px;
}

.stat-box {
  background: var(--paper);
  border-radius: 8px;
  padding: 14px 16px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.stat-box-highlight {
  background: var(--green-bg);
}

.stat-label {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--ink-soft);
  font-weight: 600;
}

.stat-value {
  font-size: 1.15rem;
  font-weight: 600;
  font-family: var(--font-display);
}

.meta-line {
  color: var(--ink-soft);
  font-size: 0.82rem;
  margin-top: 18px;
}

.back-link {
  font-size: 0.88rem;
  color: var(--ink-soft);
}

/* ---------------- Forms ---------------- */

.form-card { max-width: 760px; }

.stack-form { display: flex; flex-direction: column; gap: 18px; }

.form-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
}

.form-field {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

label {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--ink-soft);
}

input, select, textarea {
  font-family: var(--font-body);
  font-size: 0.92rem;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface);
  color: var(--ink);
}

input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(77,91,217,0.12);
}

textarea { resize: vertical; }

.form-actions { display: flex; gap: 10px; margin-top: 4px; }

/* ---------------- Auth page (login) ---------------- */

.auth-page {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  background:
    radial-gradient(circle at 20% 20%, rgba(77,91,217,0.10), transparent 45%),
    var(--sidebar);
  padding: 20px;
}

.auth-card {
  background: var(--surface);
  border-radius: 16px;
  padding: 38px 36px;
  width: 100%;
  max-width: 380px;
  box-shadow: 0 24px 60px rgba(0,0,0,0.35);
}

.auth-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 6px;
}

.auth-brand .brand-name { color: var(--ink); }

.auth-tagline {
  color: var(--ink-soft);
  font-size: 0.9rem;
  margin: 0 0 22px;
}

.auth-form { display: flex; flex-direction: column; gap: 6px; }
.auth-form label { margin-top: 10px; }
.auth-form button { margin-top: 18px; }

.auth-hint {
  font-size: 0.78rem;
  color: var(--ink-soft);
  margin-top: 20px;
  line-height: 1.5;
}
.auth-hint code {
  background: var(--paper);
  padding: 1px 5px;
  border-radius: 4px;
  font-family: var(--font-mono);
}

/* ---------------- Responsive ---------------- */

@media (max-width: 880px) {
  .sidebar-toggle {
    display: block;
    position: fixed;
    top: 16px;
    left: 16px;
    z-index: 30;
    background: var(--sidebar);
    color: #fff;
    border: none;
    border-radius: 8px;
    width: 38px;
    height: 38px;
    font-size: 1.1rem;
  }

  .sidebar {
    position: fixed;
    inset: 0 auto 0 0;
    z-index: 20;
    transform: translateX(-100%);
    transition: transform 0.2s ease;
  }

  .sidebar.is-open { transform: translateX(0); }

  .topbar { padding: 70px 20px 0; }
  .content { padding: 16px 20px 40px; }

  .search-form input { width: 100%; }
  .search-form { flex-grow: 1; }
  .toolbar { flex-direction: column; align-items: stretch; }
}