/* ============================================================
   MERCOSYSTEM — Modern UI (Bootstrap 5 + Custom Blue Theme)
   ============================================================ */

:root {
  --ms-blue-dark:   #0d2a4a;
  --ms-blue:        #1a4b7a;
  --ms-blue-mid:    #1e6091;
  --ms-blue-light:  #2980b9;
  --ms-accent:      #3498db;
  --ms-accent-hover:#217dbb;
  --ms-bg:          #f0f4f8;
  --ms-card-bg:     #ffffff;
  --ms-border:      #c8d8e8;
  --ms-text:        #1a2e3b;
  --ms-text-muted:  #5a7a92;
  --ms-success:     #27ae60;
  --ms-danger:      #e74c3c;
  --ms-warning:     #f39c12;
  --ms-sidebar-w:   0px;
}

/* ── Reset & Base ─────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
  font-size: 14px;
  background: var(--ms-bg);
  color: var(--ms-text);
  margin: 0;
  padding: 0;
}

/* ── Topbar ───────────────────────────────────────────────── */
.ms-topbar {
  background: linear-gradient(135deg, var(--ms-blue-dark) 0%, var(--ms-blue) 100%);
  color: #fff;
  padding: 0 1.25rem;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 1030;
  box-shadow: 0 2px 8px rgba(0,0,0,.35);
}
.ms-topbar .ms-brand {
  font-size: 1.2rem;
  font-weight: 700;
  letter-spacing: .04em;
  color: #fff;
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: .5rem;
}
.ms-topbar .ms-brand span { opacity: .7; font-weight: 300; }
.ms-topbar-right {
  display: flex;
  align-items: center;
  gap: 1rem;
  font-size: .8rem;
  opacity: .9;
}
.ms-topbar-right .ms-user {
  display: flex;
  align-items: center;
  gap: .4rem;
}
.ms-topbar-right .ms-user i { font-size: 1rem; }
#ms-clock { font-variant-numeric: tabular-nums; }

/* ── Navbar ───────────────────────────────────────────────── */
.ms-navbar {
  background: var(--ms-blue);
  padding: 0;
}
.ms-navbar .navbar-nav .nav-link {
  color: rgba(255,255,255,.85) !important;
  padding: .6rem 1rem;
  font-size: .82rem;
  font-weight: 500;
  letter-spacing: .02em;
  transition: background .15s, color .15s;
  border-radius: 0;
}
.ms-navbar .navbar-nav .nav-link:hover,
.ms-navbar .navbar-nav .nav-link:focus {
  background: rgba(255,255,255,.12);
  color: #fff !important;
}
.ms-navbar .dropdown-menu {
  background: var(--ms-blue-dark);
  border: 1px solid rgba(255,255,255,.12);
  border-radius: 6px;
  min-width: 220px;
  box-shadow: 0 8px 24px rgba(0,0,0,.35);
  padding: .3rem 0;
}
.ms-navbar .dropdown-item {
  color: rgba(255,255,255,.82);
  font-size: .8rem;
  padding: .5rem 1.1rem;
  transition: background .12s;
}
.ms-navbar .dropdown-item:hover {
  background: var(--ms-blue-light);
  color: #fff;
}
.ms-navbar .dropdown-divider { border-color: rgba(255,255,255,.1); }
.ms-navbar .dropdown-header {
  color: rgba(255,255,255,.45);
  font-size: .7rem;
  text-transform: uppercase;
  letter-spacing: .08em;
}
/* nested dropdown */
.ms-navbar .dropdown-submenu { position: relative; }
.ms-navbar .dropdown-submenu > .dropdown-menu {
  top: 0;
  left: 100%;
  margin-top: -4px;
}
.ms-navbar .dropdown-submenu > a::after {
  content: "›";
  float: right;
  font-size: 1rem;
  line-height: 1;
}
.ms-navbar .dropdown-submenu:hover > .dropdown-menu { display: block; }
.ms-navbar .navbar-toggler { border-color: rgba(255,255,255,.3); }
.ms-navbar .navbar-toggler-icon {
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(255,255,255,.85)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}
.ms-logout-btn {
  color: rgba(255,255,255,.8) !important;
  border: 1px solid rgba(255,255,255,.25) !important;
  font-size: .78rem !important;
  padding: .3rem .8rem !important;
  border-radius: 4px !important;
  margin-left: .5rem;
  transition: background .15s;
}
.ms-logout-btn:hover { background: rgba(255,255,255,.15) !important; color: #fff !important; }

/* ── Page content ─────────────────────────────────────────── */
.ms-content {
  padding: 1.5rem;
  max-width: 1400px;
  margin: 0 auto;
}

/* ── Page header ─────────────────────────────────────────── */
.ms-page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.25rem;
  flex-wrap: wrap;
  gap: .5rem;
}
.ms-page-title {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--ms-blue);
  margin: 0;
  display: flex;
  align-items: center;
  gap: .5rem;
}
.ms-page-title::before {
  content: '';
  display: inline-block;
  width: 4px;
  height: 1.25em;
  background: var(--ms-accent);
  border-radius: 2px;
}

/* ── Cards ────────────────────────────────────────────────── */
.ms-card {
  background: var(--ms-card-bg);
  border: 1px solid var(--ms-border);
  border-radius: 10px;
  box-shadow: 0 2px 8px rgba(13,42,74,.08);
  overflow: hidden;
}
.ms-card-header {
  background: linear-gradient(90deg, var(--ms-blue) 0%, var(--ms-blue-mid) 100%);
  color: #fff;
  padding: .75rem 1.1rem;
  font-weight: 600;
  font-size: .9rem;
  display: flex;
  align-items: center;
  gap: .5rem;
}
.ms-card-body { padding: 1.25rem; }

/* ── Forms ────────────────────────────────────────────────── */
.ms-form-group { margin-bottom: 1rem; }
.ms-form-group label {
  display: block;
  font-size: .8rem;
  font-weight: 600;
  color: var(--ms-text-muted);
  margin-bottom: .35rem;
  text-transform: uppercase;
  letter-spacing: .04em;
}
.ms-form-group .form-control,
.ms-form-group .form-select {
  border: 1.5px solid var(--ms-border);
  border-radius: 6px;
  font-size: .88rem;
  color: var(--ms-text);
  transition: border-color .15s, box-shadow .15s;
  background: #fff;
}
.ms-form-group .form-control:focus,
.ms-form-group .form-select:focus {
  border-color: var(--ms-accent);
  box-shadow: 0 0 0 3px rgba(52,152,219,.18);
}

/* ── Buttons ──────────────────────────────────────────────── */
.ms-btn {
  display: inline-flex;
  align-items: center;
  gap: .35rem;
  font-size: .82rem;
  font-weight: 600;
  padding: .45rem 1rem;
  border-radius: 6px;
  border: none;
  cursor: pointer;
  transition: background .15s, transform .1s, box-shadow .15s;
  text-decoration: none;
}
.ms-btn:active { transform: scale(.97); }
.ms-btn-primary {
  background: var(--ms-accent);
  color: #fff;
}
.ms-btn-primary:hover { background: var(--ms-accent-hover); color: #fff; }
.ms-btn-success { background: var(--ms-success); color: #fff; }
.ms-btn-success:hover { background: #219a52; color: #fff; }
.ms-btn-danger  { background: var(--ms-danger);  color: #fff; }
.ms-btn-danger:hover  { background: #c0392b; color: #fff; }
.ms-btn-secondary { background: #e2eaf3; color: var(--ms-blue); }
.ms-btn-secondary:hover { background: #ccdcef; color: var(--ms-blue); }
.ms-btn-sm { padding: .28rem .65rem; font-size: .76rem; border-radius: 5px; }
.ms-btn-icon { padding: .28rem .5rem; font-size: .82rem; }

/* ── Tables ───────────────────────────────────────────────── */
.ms-table-wrap {
  border-radius: 8px;
  overflow: hidden;
  border: 1px solid var(--ms-border);
}
.ms-table {
  width: 100%;
  border-collapse: collapse;
  font-size: .84rem;
  margin: 0;
}
.ms-table thead tr {
  background: linear-gradient(90deg, var(--ms-blue) 0%, var(--ms-blue-mid) 100%);
  color: #fff;
}
.ms-table thead th {
  padding: .7rem 1rem;
  font-weight: 600;
  font-size: .78rem;
  letter-spacing: .05em;
  text-transform: uppercase;
  white-space: nowrap;
  border: none;
}
.ms-table thead th a {
  color: #fff;
  text-decoration: none;
}
.ms-table thead th a:hover { opacity: .8; }
.ms-table tbody tr {
  border-bottom: 1px solid #e8f0f8;
  transition: background .12s;
}
.ms-table tbody tr:last-child { border-bottom: none; }
.ms-table tbody tr:nth-child(even) { background: #f7fafd; }
.ms-table tbody tr:hover { background: #e8f3fc; }
.ms-table tbody td {
  padding: .6rem 1rem;
  vertical-align: middle;
  color: var(--ms-text);
}
.ms-table .ms-actions { white-space: nowrap; text-align: center; }

/* ── Badges ───────────────────────────────────────────────── */
.ms-badge {
  display: inline-block;
  padding: .2rem .55rem;
  border-radius: 20px;
  font-size: .72rem;
  font-weight: 600;
}
.ms-badge-success { background: #d4edda; color: #155724; }
.ms-badge-danger  { background: #f8d7da; color: #721c24; }
.ms-badge-info    { background: #d1ecf1; color: #0c5460; }
.ms-badge-warning { background: #fff3cd; color: #856404; }

/* ── Pagination ───────────────────────────────────────────── */
.ms-pagination {
  display: flex;
  align-items: center;
  gap: .25rem;
  flex-wrap: wrap;
  margin-top: 1rem;
}
.ms-pagination a,
.ms-pagination span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 32px;
  height: 32px;
  padding: 0 .5rem;
  border-radius: 5px;
  font-size: .8rem;
  font-weight: 500;
  text-decoration: none;
  border: 1px solid var(--ms-border);
  color: var(--ms-blue);
  transition: background .12s, color .12s;
}
.ms-pagination a:hover { background: var(--ms-accent); color: #fff; border-color: var(--ms-accent); }
.ms-pagination .ms-page-current {
  background: var(--ms-accent);
  color: #fff;
  border-color: var(--ms-accent);
}
.ms-pagination .ms-page-prev,
.ms-pagination .ms-page-next { font-weight: 700; }

/* ── Search bar ───────────────────────────────────────────── */
.ms-search-bar {
  display: flex;
  gap: .5rem;
  align-items: center;
  margin-bottom: 1rem;
  flex-wrap: wrap;
}
.ms-search-bar .form-control {
  border: 1.5px solid var(--ms-border);
  border-radius: 6px;
  font-size: .85rem;
  max-width: 320px;
}
.ms-search-bar .form-control:focus {
  border-color: var(--ms-accent);
  box-shadow: 0 0 0 3px rgba(52,152,219,.15);
}

/* ── Modal ────────────────────────────────────────────────── */
.ms-modal .modal-header {
  background: linear-gradient(90deg, var(--ms-blue) 0%, var(--ms-blue-mid) 100%);
  color: #fff;
  border-bottom: none;
}
.ms-modal .modal-header .btn-close { filter: invert(1); }
.ms-modal .modal-title { font-weight: 600; font-size: .95rem; }
.ms-modal .modal-footer { border-top: 1px solid var(--ms-border); }

/* ── Alerts ───────────────────────────────────────────────── */
.ms-alert {
  padding: .75rem 1rem;
  border-radius: 8px;
  font-size: .85rem;
  display: flex;
  align-items: center;
  gap: .5rem;
  margin-bottom: 1rem;
}
.ms-alert-success { background: #d4edda; color: #155724; border-left: 4px solid var(--ms-success); }
.ms-alert-danger  { background: #f8d7da; color: #721c24; border-left: 4px solid var(--ms-danger); }
.ms-alert-info    { background: #d1ecf1; color: #0c5460; border-left: 4px solid var(--ms-accent); }

/* ── Footer ───────────────────────────────────────────────── */
.ms-footer {
  background: var(--ms-blue-dark);
  color: rgba(255,255,255,.55);
  font-size: .75rem;
  padding: .75rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: .5rem;
  margin-top: 2rem;
}
.ms-footer strong { color: rgba(255,255,255,.8); }
#ms-foot-clock { font-variant-numeric: tabular-nums; }

/* ── Acceso denegado ──────────────────────────────────────── */
.ms-denied {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 4rem 1rem;
  color: var(--ms-text-muted);
  text-align: center;
}
.ms-denied i { font-size: 3.5rem; color: var(--ms-danger); margin-bottom: 1rem; }
.ms-denied h3 { color: var(--ms-blue); }

/* ── Responsive tweaks ────────────────────────────────────── */
@media (max-width: 768px) {
  .ms-content { padding: 1rem .75rem; }
  .ms-page-header { flex-direction: column; align-items: flex-start; }
  .ms-table thead { display: none; }
  .ms-table, .ms-table tbody, .ms-table tr, .ms-table td { display: block; width: 100%; }
  .ms-table tr { border-radius: 8px; border: 1px solid var(--ms-border); margin-bottom: .5rem; padding: .5rem; }
  .ms-table td::before {
    content: attr(data-label) ": ";
    font-weight: 600;
    color: var(--ms-text-muted);
    font-size: .75rem;
    text-transform: uppercase;
  }
}

/* ── Utility ──────────────────────────────────────────────── */
.text-blue  { color: var(--ms-blue); }
.text-accent{ color: var(--ms-accent); }
.fw-600 { font-weight: 600; }
.gap-2  { gap: .5rem; }