/* ============================================================
   eGAS — Design System
   egas.sqlteam.cloud
   Tema: Industrial / Utilitarian — oscuro con acentos ámbar
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Space+Mono:wght@400;700&family=DM+Sans:ital,opsz,wght@0,9..40,300;0,9..40,400;0,9..40,500;0,9..40,600;1,9..40,300&display=swap');

/* ── Variables ─────────────────────────────────────────────── */
:root {
  --bg:        #0f1117;
  --bg2:       #161b24;
  --bg3:       #1e2533;
  --surface:   #242b3a;
  --surface2:  #2d3548;
  --border:    rgba(255,255,255,.08);
  --border2:   rgba(255,255,255,.14);

  --amber:     #f5a623;
  --amber-dim: #c4831c;
  --amber-glow: rgba(245,166,35,.12);
  --red:       #e84545;
  --red-dim:   rgba(232,69,69,.15);
  --green:     #2ed573;
  --green-dim: rgba(46,213,115,.13);
  --blue:      #4a9eff;
  --blue-dim:  rgba(74,158,255,.13);

  --text:      #e8eaf0;
  --text2:     #9aa3b8;
  --text3:     #5d677e;

  --font-display: 'Space Mono', monospace;
  --font-body:    'DM Sans', sans-serif;

  --radius:    8px;
  --radius-lg: 14px;
  --radius-xl: 20px;
  --shadow:    0 4px 24px rgba(0,0,0,.4);
  --shadow-lg: 0 8px 48px rgba(0,0,0,.6);

  --sidebar-w: 240px;
  --header-h:  58px;
  --transition: .18s cubic-bezier(.4,0,.2,1);
}

/* ── Reset ──────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { font-size: 15px; scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
}

a { color: var(--amber); text-decoration: none; }
a:hover { color: #ffc34a; }

img { max-width: 100%; }

/* ── Layout principal ───────────────────────────────────────── */
.layout {
  display: grid;
  grid-template-columns: var(--sidebar-w) 1fr;
  grid-template-rows: var(--header-h) 1fr;
  min-height: 100vh;
}

/* ── Header ─────────────────────────────────────────────────── */
.header {
  grid-column: 1 / -1;
  background: var(--bg2);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  padding: 0 20px;
  gap: 16px;
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  width: var(--sidebar-w);
  padding-right: 20px;
  border-right: 1px solid var(--border);
  flex-shrink: 0;
}

.brand-logo {
  width: 34px;
  height: 34px;
  background: linear-gradient(135deg, var(--amber) 0%, var(--amber-dim) 100%);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 13px;
  color: #0f1117;
  flex-shrink: 0;
}

.brand-name {
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: .05em;
  color: var(--text);
}

.brand-name span { color: var(--amber); }

.header-center { flex: 1; display: flex; align-items: center; gap: 12px; }

.header-search {
  position: relative;
  max-width: 340px;
  width: 100%;
}

.header-search input {
  width: 100%;
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 7px 14px 7px 36px;
  font-size: 13px;
  color: var(--text);
  font-family: var(--font-body);
  outline: none;
  transition: border-color var(--transition);
}

.header-search input:focus { border-color: var(--amber); }

.header-search .search-icon {
  position: absolute;
  left: 11px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text3);
  font-size: 14px;
}

.header-right {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-left: auto;
}

.header-badge {
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 4px 12px;
  font-size: 12px;
  color: var(--text2);
  display: flex;
  align-items: center;
  gap: 6px;
}

.header-badge .dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 6px var(--green);
}

.header-user {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  padding: 4px 10px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--bg3);
  transition: border-color var(--transition);
}

.header-user:hover { border-color: var(--border2); }

.header-avatar {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--amber-glow);
  border: 1.5px solid var(--amber);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  font-weight: 600;
  color: var(--amber);
  flex-shrink: 0;
}

.header-username { font-size: 13px; color: var(--text2); }

/* ── Hamburger (mobile) ──────────────────────────────────────── */
.btn-menu {
  display: none;
  background: none;
  border: none;
  color: var(--text);
  font-size: 20px;
  cursor: pointer;
  padding: 4px;
}

/* ── Sidebar ─────────────────────────────────────────────────── */
.sidebar {
  background: var(--bg2);
  border-right: 1px solid var(--border);
  overflow-y: auto;
  overflow-x: hidden;
  padding: 16px 0;
  position: sticky;
  top: var(--header-h);
  height: calc(100vh - var(--header-h));
}

.sidebar::-webkit-scrollbar { width: 4px; }
.sidebar::-webkit-scrollbar-track { background: transparent; }
.sidebar::-webkit-scrollbar-thumb { background: var(--border2); border-radius: 4px; }

.nav-section {
  margin-bottom: 8px;
}

.nav-section-label {
  font-size: 10px;
  font-weight: 600;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--text3);
  padding: 8px 20px 4px;
  font-family: var(--font-display);
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 20px;
  font-size: 13.5px;
  color: var(--text2);
  cursor: pointer;
  border-left: 2px solid transparent;
  transition: all var(--transition);
  text-decoration: none;
  white-space: nowrap;
}

.nav-item:hover {
  background: var(--amber-glow);
  color: var(--text);
  border-left-color: var(--amber-dim);
}

.nav-item.active {
  background: var(--amber-glow);
  color: var(--amber);
  border-left-color: var(--amber);
  font-weight: 500;
}

.nav-item .nav-icon {
  width: 18px;
  text-align: center;
  flex-shrink: 0;
  font-size: 15px;
}

.nav-divider {
  height: 1px;
  background: var(--border);
  margin: 8px 16px;
}

/* ── Main Content ────────────────────────────────────────────── */
.main {
  overflow: auto;
  background: var(--bg);
}

.page-content {
  padding: 28px;
  max-width: 1400px;
}

/* ── Page Header ─────────────────────────────────────────────── */
.page-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 28px;
  gap: 16px;
  flex-wrap: wrap;
}

.page-title {
  font-family: var(--font-display);
  font-size: 22px;
  color: var(--text);
  letter-spacing: -.01em;
}

.page-subtitle {
  font-size: 13px;
  color: var(--text3);
  margin-top: 3px;
}

.page-actions { display: flex; gap: 10px; flex-wrap: wrap; }

/* ── Buttons ─────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 8px 18px;
  border-radius: var(--radius);
  font-size: 13.5px;
  font-family: var(--font-body);
  font-weight: 500;
  cursor: pointer;
  border: 1px solid transparent;
  transition: all var(--transition);
  white-space: nowrap;
  text-decoration: none;
}

.btn-primary {
  background: var(--amber);
  color: #0f1117;
  border-color: var(--amber);
}
.btn-primary:hover {
  background: #ffc34a;
  border-color: #ffc34a;
  box-shadow: 0 0 20px rgba(245,166,35,.3);
  color: #0f1117;
}

.btn-secondary {
  background: var(--surface);
  color: var(--text);
  border-color: var(--border2);
}
.btn-secondary:hover { background: var(--surface2); border-color: var(--border2); color: var(--text); }

.btn-danger {
  background: var(--red-dim);
  color: var(--red);
  border-color: rgba(232,69,69,.3);
}
.btn-danger:hover { background: rgba(232,69,69,.25); }

.btn-ghost {
  background: transparent;
  color: var(--text2);
  border-color: var(--border);
}
.btn-ghost:hover { background: var(--bg3); color: var(--text); }

.btn-sm { padding: 5px 12px; font-size: 12px; }
.btn-lg { padding: 11px 24px; font-size: 15px; }
.btn-icon { padding: 8px; width: 36px; height: 36px; justify-content: center; }

/* ── Cards ───────────────────────────────────────────────────── */
.card {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
  gap: 12px;
  flex-wrap: wrap;
}

.card-title {
  font-family: var(--font-display);
  font-size: 14px;
  color: var(--text);
  letter-spacing: .02em;
}

.card-body { padding: 20px; }

/* ── Stat Cards ──────────────────────────────────────────────── */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 16px;
  margin-bottom: 28px;
}

.stat-card {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 20px;
  position: relative;
  overflow: hidden;
  transition: border-color var(--transition);
}

.stat-card:hover { border-color: var(--border2); }

.stat-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 3px;
}
.stat-card.amber::before  { background: var(--amber); }
.stat-card.green::before  { background: var(--green); }
.stat-card.blue::before   { background: var(--blue); }
.stat-card.red::before    { background: var(--red); }

.stat-icon {
  width: 38px;
  height: 38px;
  border-radius: 9px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  margin-bottom: 14px;
}
.stat-card.amber .stat-icon { background: var(--amber-glow); }
.stat-card.green .stat-icon { background: var(--green-dim); }
.stat-card.blue  .stat-icon { background: var(--blue-dim); }
.stat-card.red   .stat-icon { background: var(--red-dim); }

.stat-value {
  font-family: var(--font-display);
  font-size: 26px;
  font-weight: 700;
  color: var(--text);
  line-height: 1;
  margin-bottom: 4px;
}

.stat-label { font-size: 12px; color: var(--text3); letter-spacing: .04em; }

.stat-delta {
  font-size: 11px;
  margin-top: 8px;
  display: flex;
  align-items: center;
  gap: 4px;
}
.stat-delta.up   { color: var(--green); }
.stat-delta.down { color: var(--red); }

/* ── Tables ──────────────────────────────────────────────────── */
.table-wrap {
  overflow-x: auto;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13.5px;
}

thead tr {
  background: var(--bg3);
  border-bottom: 1px solid var(--border);
}

thead th {
  padding: 11px 16px;
  text-align: left;
  font-size: 11px;
  font-family: var(--font-display);
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--text3);
  white-space: nowrap;
}

tbody tr {
  border-bottom: 1px solid var(--border);
  transition: background var(--transition);
}

tbody tr:last-child { border-bottom: none; }
tbody tr:hover { background: var(--amber-glow); }

tbody td {
  padding: 11px 16px;
  color: var(--text2);
  vertical-align: middle;
}

tbody td strong { color: var(--text); }

/* ── Badges ──────────────────────────────────────────────────── */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 10px;
  border-radius: 20px;
  font-size: 11px;
  font-weight: 500;
  white-space: nowrap;
}

.badge-green  { background: var(--green-dim);  color: var(--green); }
.badge-amber  { background: var(--amber-glow); color: var(--amber); }
.badge-red    { background: var(--red-dim);    color: var(--red); }
.badge-blue   { background: var(--blue-dim);   color: var(--blue); }
.badge-gray   { background: rgba(255,255,255,.06); color: var(--text3); }

/* ── Forms ───────────────────────────────────────────────────── */
.form-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
}

.form-group { display: flex; flex-direction: column; gap: 6px; }
.form-group.span2 { grid-column: span 2; }
.form-group.span3 { grid-column: span 3; }

.form-label {
  font-size: 11px;
  font-family: var(--font-display);
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--text3);
}

.form-control {
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 9px 13px;
  font-size: 14px;
  color: var(--text);
  font-family: var(--font-body);
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition);
  width: 100%;
}

.form-control:focus {
  border-color: var(--amber);
  box-shadow: 0 0 0 3px var(--amber-glow);
}

.form-control::placeholder { color: var(--text3); }

select.form-control { cursor: pointer; }

.form-hint { font-size: 11px; color: var(--text3); }
.form-error { font-size: 11px; color: var(--red); }

/* ── Modal ───────────────────────────────────────────────────── */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.7);
  backdrop-filter: blur(4px);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition);
}

.modal-overlay.open {
  opacity: 1;
  pointer-events: all;
}

.modal {
  background: var(--bg2);
  border: 1px solid var(--border2);
  border-radius: var(--radius-xl);
  width: 100%;
  max-height: 90vh;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-lg);
  transform: translateY(20px) scale(.97);
  transition: transform var(--transition);
}

.modal-overlay.open .modal { transform: translateY(0) scale(1); }

.modal-sm  { max-width: 420px; }
.modal-md  { max-width: 600px; }
.modal-lg  { max-width: 860px; }
.modal-xl  { max-width: 1100px; }

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 24px;
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}

.modal-title {
  font-family: var(--font-display);
  font-size: 15px;
  color: var(--text);
  letter-spacing: .02em;
}

.modal-close {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  background: var(--bg3);
  border: 1px solid var(--border);
  color: var(--text2);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  transition: all var(--transition);
  flex-shrink: 0;
}

.modal-close:hover { background: var(--red-dim); color: var(--red); border-color: transparent; }

.modal-body {
  padding: 24px;
  overflow-y: auto;
  flex: 1;
}

.modal-footer {
  padding: 16px 24px;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  flex-shrink: 0;
}

/* ── Alerts ──────────────────────────────────────────────────── */
.alert {
  padding: 12px 16px;
  border-radius: var(--radius);
  font-size: 13.5px;
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
}
.alert-success { background: var(--green-dim); color: var(--green); border: 1px solid rgba(46,213,115,.2); }
.alert-danger  { background: var(--red-dim);   color: var(--red);   border: 1px solid rgba(232,69,69,.2); }
.alert-warning { background: var(--amber-glow); color: var(--amber); border: 1px solid rgba(245,166,35,.2); }

/* ── Search bar in tables ────────────────────────────────────── */
.table-toolbar {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.search-box {
  position: relative;
  flex: 1;
  min-width: 200px;
  max-width: 360px;
}

.search-box input {
  width: 100%;
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 8px 14px 8px 36px;
  font-size: 13px;
  color: var(--text);
  font-family: var(--font-body);
  outline: none;
  transition: border-color var(--transition);
}

.search-box input:focus { border-color: var(--amber); }
.search-box .icon { position: absolute; left: 11px; top: 50%; transform: translateY(-50%); color: var(--text3); font-size: 14px; }

/* ── Pagination ──────────────────────────────────────────────── */
.pagination {
  display: flex;
  align-items: center;
  gap: 4px;
  justify-content: center;
  padding: 16px;
}

.page-btn {
  width: 34px; height: 34px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--bg3);
  color: var(--text2);
  font-size: 13px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition);
}

.page-btn:hover   { border-color: var(--amber); color: var(--amber); }
.page-btn.active  { background: var(--amber); border-color: var(--amber); color: #0f1117; font-weight: 700; }

/* ── Login page ──────────────────────────────────────────────── */
.login-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg);
  padding: 20px;
  position: relative;
  overflow: hidden;
}

.login-page::before {
  content: '';
  position: absolute;
  width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(245,166,35,.06) 0%, transparent 70%);
  top: -200px; right: -200px;
  pointer-events: none;
}

.login-page::after {
  content: '';
  position: absolute;
  width: 400px; height: 400px;
  background: radial-gradient(circle, rgba(74,158,255,.04) 0%, transparent 70%);
  bottom: -100px; left: -100px;
  pointer-events: none;
}

.login-card {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 48px;
  width: 100%;
  max-width: 420px;
  position: relative;
  z-index: 1;
  box-shadow: var(--shadow-lg);
}

.login-logo {
  text-align: center;
  margin-bottom: 36px;
}

.login-logo-mark {
  width: 56px; height: 56px;
  background: linear-gradient(135deg, var(--amber) 0%, var(--amber-dim) 100%);
  border-radius: 14px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 700;
  color: #0f1117;
  margin-bottom: 16px;
  box-shadow: 0 8px 24px rgba(245,166,35,.3);
}

.login-title {
  font-family: var(--font-display);
  font-size: 24px;
  color: var(--text);
  margin-bottom: 4px;
}

.login-subtitle {
  font-size: 13px;
  color: var(--text3);
}

.login-domain {
  font-family: var(--font-display);
  font-size: 11px;
  color: var(--amber);
  letter-spacing: .08em;
  margin-top: 4px;
}

.login-form { margin-top: 32px; display: flex; flex-direction: column; gap: 16px; }

.login-footer {
  text-align: center;
  margin-top: 28px;
  font-size: 11px;
  color: var(--text3);
}

/* ── Empty state ─────────────────────────────────────────────── */
.empty-state {
  text-align: center;
  padding: 60px 20px;
  color: var(--text3);
}

.empty-state-icon { font-size: 48px; margin-bottom: 16px; opacity: .4; }
.empty-state-title { font-size: 16px; color: var(--text2); margin-bottom: 8px; }
.empty-state-desc  { font-size: 13px; }

/* ── Loading ─────────────────────────────────────────────────── */
.spinner {
  width: 22px; height: 22px;
  border: 2px solid var(--border2);
  border-top-color: var(--amber);
  border-radius: 50%;
  animation: spin .7s linear infinite;
  display: inline-block;
}

@keyframes spin { to { transform: rotate(360deg); } }

/* ── Toast ───────────────────────────────────────────────────── */
#toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.toast {
  background: var(--surface2);
  border: 1px solid var(--border2);
  border-radius: var(--radius-lg);
  padding: 12px 18px;
  font-size: 13.5px;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: 10px;
  box-shadow: var(--shadow);
  animation: toastIn .25s ease;
  min-width: 240px;
  max-width: 380px;
}

.toast.success { border-color: rgba(46,213,115,.3); }
.toast.error   { border-color: rgba(232,69,69,.3); }

@keyframes toastIn { from { opacity: 0; transform: translateX(20px); } }

/* ── Responsive ──────────────────────────────────────────────── */
@media (max-width: 900px) {
  .layout {
    grid-template-columns: 1fr;
    grid-template-rows: var(--header-h) 1fr;
  }

  .sidebar {
    position: fixed;
    top: var(--header-h);
    left: 0;
    width: var(--sidebar-w);
    height: calc(100vh - var(--header-h));
    z-index: 200;
    transform: translateX(-100%);
    transition: transform var(--transition);
    box-shadow: var(--shadow-lg);
  }

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

  .sidebar-backdrop {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,.5);
    z-index: 199;
    top: var(--header-h);
  }

  .sidebar-backdrop.open { display: block; }

  .header-brand { width: auto; border: none; padding: 0; }
  .brand-name   { display: none; }
  .btn-menu     { display: flex; }
  .header-search { display: none; }

  .page-content { padding: 16px; }
  .form-group.span2, .form-group.span3 { grid-column: span 1; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 480px) {
  .stats-grid   { grid-template-columns: 1fr; }
  .login-card   { padding: 32px 24px; }
  .modal-body   { padding: 16px; }
  .modal-header { padding: 14px 16px; }
  .modal-footer { padding: 12px 16px; }
  .page-header  { flex-direction: column; }
}

/* ── Print ───────────────────────────────────────────────────── */
@media print {
  .sidebar, .header, .page-actions, .btn, .modal-overlay { display: none !important; }
  .layout { display: block; }
  body { background: white; color: black; }
  .card { border: 1px solid #ddd; }
}