/* ============================================================
   STOCK PRO — Hoja de estilos principal
   css/style.css
   ============================================================ */

/* ── Variables ─────────────────────────────────────────────── */
:root {
  --sidebar-w: 260px;
  --topbar-h:  62px;

  --bg:        #0f1117;
  --bg2:       #1a1d27;
  --bg3:       #22273a;
  --card:      #1e2235;
  --border:    #2e3452;
  --text:      #e2e8f0;
  --muted:     #8892a4;
  --accent:    #4f6ef7;
  --accent2:   #7c4dff;
  --success:   #2ecc71;
  --warning:   #f39c12;
  --danger:    #e74c3c;
  --info:      #3498db;

  --radius:    10px;
  --shadow:    0 4px 20px rgba(0,0,0,.4);
  --trans:     .2s ease;
}

/* ── Reset ─────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 15px; }
body {
  font-family: 'Segoe UI', system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  display: flex;
  min-height: 100vh;
  overflow-x: hidden;
}
a { color: var(--accent); text-decoration: none; }
img { max-width: 100%; display: block; }

/* ══ LOGIN PAGE ══════════════════════════════════════════════ */
body.login-page {
  justify-content: center;
  align-items: center;
  background: linear-gradient(135deg, #0f1117 0%, #1a1f35 50%, #0f1117 100%);
}
.login-card {
  width: 100%;
  max-width: 420px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2.5rem 2rem;
  box-shadow: var(--shadow);
}
.login-logo {
  text-align: center;
  margin-bottom: 2rem;
}
.login-logo i {
  font-size: 3rem;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}
.login-logo h1 { font-size: 1.5rem; margin-top: .5rem; }
.login-logo p  { color: var(--muted); font-size: .85rem; }

.role-select {
  display: flex;
  gap: .5rem;
  margin-bottom: 1.5rem;
}
.role-btn {
  flex: 1;
  padding: .6rem .4rem;
  border: 2px solid var(--border);
  border-radius: 8px;
  background: var(--bg3);
  color: var(--muted);
  cursor: pointer;
  font-size: .78rem;
  text-align: center;
  transition: var(--trans);
}
.role-btn:hover, .role-btn.active {
  border-color: var(--accent);
  color: var(--text);
  background: rgba(79,110,247,.15);
}
.role-btn i { display: block; font-size: 1.3rem; margin-bottom: .3rem; }

/* ── Forms ─────────────────────────────────────────────────── */
.form-group { margin-bottom: 1rem; }
.form-group label {
  display: block;
  font-size: .82rem;
  color: var(--muted);
  margin-bottom: .4rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .05em;
}
.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: .7rem 1rem;
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  font-size: .95rem;
  transition: var(--trans);
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(79,110,247,.2);
}
.form-row { display: flex; gap: 1rem; }
.form-row .form-group { flex: 1; }

/* ── Buttons ────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  padding: .65rem 1.3rem;
  border: none;
  border-radius: 8px;
  font-size: .9rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--trans);
}
.btn-primary   { background: var(--accent);   color: #fff; }
.btn-success   { background: var(--success);  color: #fff; }
.btn-warning   { background: var(--warning);  color: #fff; }
.btn-danger    { background: var(--danger);   color: #fff; }
.btn-secondary { background: var(--bg3);      color: var(--text); border: 1px solid var(--border); }
.btn:hover { filter: brightness(1.15); transform: translateY(-1px); }
.btn-full { width: 100%; justify-content: center; padding: .85rem; }
.btn-sm { padding: .4rem .8rem; font-size: .8rem; }
.btn-icon { padding: .45rem .55rem; }

/* ── Alerts ─────────────────────────────────────────────────── */
.alert {
  padding: .8rem 1rem;
  border-radius: 8px;
  margin-bottom: 1rem;
  font-size: .9rem;
  display: flex;
  align-items: center;
  gap: .6rem;
}
.alert-danger  { background: rgba(231,76,60,.15);  border: 1px solid var(--danger);  color: #ff8c82; }
.alert-success { background: rgba(46,204,113,.15); border: 1px solid var(--success); color: #6ef98a; }
.alert-warning { background: rgba(243,156,18,.15); border: 1px solid var(--warning); color: #ffd280; }
.alert-info    { background: rgba(52,152,219,.15); border: 1px solid var(--info);    color: #7cc9f8; }

/* ══ SIDEBAR ════════════════════════════════════════════════ */
.sidebar {
  width: var(--sidebar-w);
  min-height: 100vh;
  background: var(--bg2);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0; left: 0;
  z-index: 100;
  transition: transform var(--trans);
}
.sidebar-logo {
  padding: 1.3rem 1.5rem;
  display: flex;
  align-items: center;
  gap: .7rem;
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--accent);
  border-bottom: 1px solid var(--border);
}
.sidebar-logo i { font-size: 1.4rem; }

.sidebar-user {
  padding: 1rem 1.5rem;
  display: flex;
  align-items: center;
  gap: .8rem;
  border-bottom: 1px solid var(--border);
}
.user-avatar {
  width: 40px; height: 40px;
  border-radius: 50%;
  background: var(--bg3);
  display: flex; align-items: center; justify-content: center;
  overflow: hidden;
  flex-shrink: 0;
}
.user-avatar i    { font-size: 1.6rem; color: var(--muted); }
.user-avatar img  { width: 100%; height: 100%; object-fit: cover; }
.user-info strong { display: block; font-size: .9rem; }
.role-badge {
  display: inline-block;
  padding: .1rem .5rem;
  border-radius: 20px;
  font-size: .7rem;
  font-weight: 700;
  color: #fff;
  margin-top: .2rem;
}

.sidebar-nav {
  flex: 1;
  overflow-y: auto;
  padding: .8rem 0;
  scrollbar-width: thin;
}
.nav-section {
  padding: .8rem 1.5rem .3rem;
  font-size: .7rem;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--muted);
}
.nav-item {
  display: flex;
  align-items: center;
  gap: .75rem;
  padding: .6rem 1.5rem;
  color: var(--muted);
  font-size: .9rem;
  transition: var(--trans);
  position: relative;
}
.nav-item i { width: 18px; text-align: center; }
.nav-item:hover, .nav-item.active {
  background: rgba(79,110,247,.12);
  color: var(--text);
  border-left: 3px solid var(--accent);
}
.badge-alert {
  margin-left: auto;
  background: var(--danger);
  color: #fff;
  font-size: .68rem;
  font-weight: 700;
  padding: .1rem .45rem;
  border-radius: 20px;
  min-width: 20px;
  text-align: center;
}

.sidebar-footer {
  padding: 1rem 1.5rem;
  border-top: 1px solid var(--border);
}
.btn-logout {
  display: flex; align-items: center; justify-content: center; gap: .5rem;
  width: 100%; padding: .65rem;
  background: rgba(231,76,60,.15);
  border: 1px solid rgba(231,76,60,.4);
  border-radius: 8px;
  color: #ff8c82;
  font-size: .9rem;
  font-weight: 600;
  transition: var(--trans);
}
.btn-logout:hover { background: rgba(231,76,60,.3); color: #fff; }

/* ══ MAIN LAYOUT ════════════════════════════════════════════ */
.main-wrapper {
  margin-left: var(--sidebar-w);
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}
.topbar {
  height: var(--topbar-h);
  background: var(--bg2);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  padding: 0 1.5rem;
  gap: 1rem;
  position: sticky; top: 0; z-index: 50;
}
.sidebar-toggle { display: none; background: none; border: none; color: var(--text); font-size: 1.2rem; cursor: pointer; }
.page-title  { font-size: 1.1rem; font-weight: 700; flex: 1; }
.topbar-right { display: flex; align-items: center; gap: 1rem; }
.topbar-local { font-size: .8rem; color: var(--muted); }
.topbar-logout {
  width: 36px; height: 36px;
  border-radius: 8px;
  background: rgba(231,76,60,.15);
  border: 1px solid rgba(231,76,60,.3);
  display: flex; align-items: center; justify-content: center;
  color: #ff8c82;
  transition: var(--trans);
}
.topbar-logout:hover { background: var(--danger); color: #fff; }

.content { padding: 1.5rem; flex: 1; }

/* ══ CARDS & STATS ══════════════════════════════════════════ */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
  margin-bottom: 1.5rem;
}
.stat-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.3rem;
  display: flex;
  align-items: center;
  gap: 1rem;
}
.stat-icon {
  width: 52px; height: 52px;
  border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.3rem;
  flex-shrink: 0;
}
.stat-icon.blue   { background: rgba(79,110,247,.2);  color: var(--accent); }
.stat-icon.green  { background: rgba(46,204,113,.2);  color: var(--success); }
.stat-icon.orange { background: rgba(243,156,18,.2);  color: var(--warning); }
.stat-icon.red    { background: rgba(231,76,60,.2);   color: var(--danger); }
.stat-icon.purple { background: rgba(124,77,255,.2);  color: var(--accent2); }
.stat-val  { font-size: 1.7rem; font-weight: 700; line-height: 1; }
.stat-lbl  { font-size: .78rem; color: var(--muted); margin-top: .2rem; }

/* ══ TABLE ══════════════════════════════════════════════════ */
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  margin-bottom: 1.5rem;
}
.card-header {
  padding: 1rem 1.3rem;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}
.card-header h2 { font-size: 1rem; font-weight: 700; }
.card-body { padding: 1.2rem; }

.filters-bar {
  display: flex;
  flex-wrap: wrap;
  gap: .6rem;
  padding: 1rem 1.3rem;
  border-bottom: 1px solid var(--border);
  background: var(--bg3);
}
.filters-bar input,
.filters-bar select {
  padding: .5rem .9rem;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 7px;
  color: var(--text);
  font-size: .85rem;
}
.filters-bar input:focus,
.filters-bar select:focus { outline: none; border-color: var(--accent); }
.filters-bar input { min-width: 220px; }

.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: .88rem; }
thead th {
  padding: .75rem 1rem;
  text-align: left;
  font-size: .75rem;
  font-weight: 700;
  letter-spacing: .07em;
  text-transform: uppercase;
  color: var(--muted);
  border-bottom: 1px solid var(--border);
  background: var(--bg3);
  white-space: nowrap;
}
tbody tr { border-bottom: 1px solid rgba(46,52,82,.6); transition: background var(--trans); }
tbody tr:hover { background: rgba(79,110,247,.06); }
tbody td { padding: .65rem 1rem; vertical-align: middle; }

.prod-img {
  width: 44px; height: 44px;
  object-fit: cover;
  border-radius: 8px;
  background: var(--bg3);
}
.no-img {
  width: 44px; height: 44px;
  border-radius: 8px;
  background: var(--bg3);
  display: flex; align-items: center; justify-content: center;
  color: var(--muted);
  font-size: .8rem;
}
.stock-ok    { color: var(--success); font-weight: 700; }
.stock-warn  { color: var(--warning); font-weight: 700; }
.stock-empty { color: var(--danger);  font-weight: 700; }

.badge {
  display: inline-block;
  padding: .15rem .55rem;
  border-radius: 20px;
  font-size: .72rem;
  font-weight: 700;
}
.badge-admin     { background: rgba(231,76,60,.2);  color: #ff8c82; }
.badge-confianza { background: rgba(243,156,18,.2); color: #ffd280; }
.badge-nuevo     { background: rgba(46,204,113,.2); color: #6ef98a; }
.badge-activo    { background: rgba(46,204,113,.2); color: #6ef98a; }
.badge-inactivo  { background: rgba(231,76,60,.2);  color: #ff8c82; }

/* Pagination */
.pagination {
  display: flex;
  align-items: center;
  gap: .4rem;
  padding: .9rem 1.3rem;
  border-top: 1px solid var(--border);
  justify-content: flex-end;
  font-size: .85rem;
}
.pagination a, .pagination span {
  padding: .3rem .65rem;
  border-radius: 6px;
  border: 1px solid var(--border);
  color: var(--muted);
  transition: var(--trans);
}
.pagination a:hover, .pagination a.active {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

/* ══ MODAL ══════════════════════════════════════════════════ */
.modal-overlay {
  display: none;
  position: fixed; inset: 0;
  background: rgba(0,0,0,.7);
  z-index: 200;
  align-items: center;
  justify-content: center;
}
.modal-overlay.open { display: flex; }
.modal {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  width: 90%; max-width: 600px;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--shadow);
}
.modal-header {
  padding: 1.1rem 1.5rem;
  border-bottom: 1px solid var(--border);
  display: flex; align-items: center; justify-content: space-between;
}
.modal-header h3 { font-size: 1rem; }
.modal-close { background: none; border: none; color: var(--muted); font-size: 1.2rem; cursor: pointer; }
.modal-close:hover { color: var(--danger); }
.modal-body { padding: 1.5rem; }
.modal-footer { padding: 1rem 1.5rem; border-top: 1px solid var(--border); display: flex; gap: .7rem; justify-content: flex-end; }

/* ══ IMAGE UPLOAD ══════════════════════════════════════════ */
.img-upload-zone {
  border: 2px dashed var(--border);
  border-radius: var(--radius);
  padding: 2rem;
  text-align: center;
  cursor: pointer;
  transition: var(--trans);
  color: var(--muted);
}
.img-upload-zone:hover { border-color: var(--accent); color: var(--accent); }
.img-preview { max-width: 200px; border-radius: 8px; margin: .8rem auto 0; }

/* ══ PRODUCT GRID (catálogo) ════════════════════════════════ */
.prod-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(190px, 1fr));
  gap: 1rem;
}
.prod-card {
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: var(--trans);
}
.prod-card:hover { transform: translateY(-3px); box-shadow: var(--shadow); }
.prod-card-img {
  height: 140px;
  background: var(--bg2);
  display: flex; align-items: center; justify-content: center;
  overflow: hidden;
}
.prod-card-img img { width: 100%; height: 100%; object-fit: cover; }
.prod-card-img i   { font-size: 2.5rem; color: var(--muted); }
.prod-card-body    { padding: .8rem; }
.prod-card-title   { font-size: .85rem; font-weight: 700; margin-bottom: .2rem; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.prod-card-sub     { font-size: .75rem; color: var(--muted); margin-bottom: .5rem; }
.prod-card-footer  { display: flex; align-items: center; justify-content: space-between; }
.prod-price        { font-size: 1rem; font-weight: 700; color: var(--accent); }

/* ══ VIEW TOGGLE ═══════════════════════════════════════════ */
.view-toggle { display: flex; gap: .4rem; }
.view-toggle button {
  padding: .4rem .65rem;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: var(--bg3);
  color: var(--muted);
  cursor: pointer;
}
.view-toggle button.active { background: var(--accent); border-color: var(--accent); color: #fff; }

/* ══ RESPONSIVE ═════════════════════════════════════════════ */
@media (max-width: 768px) {
  .sidebar { transform: translateX(-100%); }
  .sidebar.open { transform: translateX(0); }
  .main-wrapper { margin-left: 0; }
  .sidebar-toggle { display: block; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  body.login-page { padding: 1rem; }
}