/* ============================================
   NEXERGIA — Design System & Global Styles
   INGTECNOVA SAS BIC
   ============================================ */

/* Tokens */
:root {
  --green-1: #00C853;
  --green-2: #00E676;
  --green-3: #69F0AE;
  --green-dark: #00A844;
  --cyan: #22D3EE;
  --cyan-dark: #06B6D4;

  --dark-1: #0A0E17;
  --dark-2: #111827;
  --dark-3: #1F2937;
  --dark-4: #374151;

  --text-primary: #F1F5F9;
  --text-secondary: #94A3B8;
  --text-muted: #64748B;
  --text-dim: #475569;

  --glass: rgba(255,255,255,0.05);
  --glass-hover: rgba(255,255,255,0.08);
  --glass-border: rgba(255,255,255,0.08);
  --glass-border-hover: rgba(255,255,255,0.15);

  --ingtecnova-teal: #5B8E8E;

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 20px;

  --shadow-sm: 0 2px 8px rgba(0,0,0,0.2);
  --shadow-md: 0 4px 20px rgba(0,0,0,0.3);
  --shadow-lg: 0 8px 40px rgba(0,0,0,0.4);
  --shadow-green: 0 4px 20px rgba(0,200,83,0.25);

  --sidebar-width: 260px;
  --topbar-height: 64px;

  --font-display: 'Outfit', system-ui, -apple-system, sans-serif;
  --font-body: 'DM Sans', system-ui, -apple-system, sans-serif;
}

/* Reset */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { font-size: 16px; -webkit-font-smoothing: antialiased; }
body {
  font-family: var(--font-body);
  background: var(--dark-1);
  color: var(--text-primary);
  min-height: 100vh;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
button { cursor: pointer; font-family: var(--font-display); }
img { max-width: 100%; display: block; }
input, select, textarea {
  font-family: var(--font-body);
  font-size: 14px;
}
ul, ol { list-style: none; }

/* ============ LOADING ============ */
.loading-overlay {
  position: fixed; inset: 0; z-index: 9999;
  background: var(--dark-1);
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  gap: 24px;
  transition: opacity 0.5s ease;
}
.loading-overlay.fade-out { opacity: 0; pointer-events: none; }
.loading-spinner {
  position: relative;
  width: 80px; height: 80px;
}
.spinner-ring {
  position: absolute; inset: 0;
  border: 3px solid var(--glass-border);
  border-top-color: var(--green-1);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}
.spinner-logo {
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  width: 36px; height: 36px;
  object-fit: contain;
}
.loading-text {
  color: var(--text-secondary);
  font-size: 14px;
  font-family: var(--font-body);
  animation: pulse-text 1.5s ease-in-out infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
@keyframes pulse-text { 50% { opacity: 0.5; } }

/* ============ SIDEBAR ============ */
.sidebar {
  position: fixed; left: 0; top: 0; bottom: 0;
  width: var(--sidebar-width);
  background: var(--dark-2);
  border-right: 1px solid var(--glass-border);
  display: flex; flex-direction: column;
  z-index: 100;
  overflow-y: auto;
}
.sidebar-header {
  padding: 20px 20px 16px;
  border-bottom: 1px solid var(--glass-border);
}
.sidebar-logo {
  display: flex; align-items: center; gap: 12px;
}
.logo-img {
  width: auto; height: 36px;
  object-fit: contain;
}
.sidebar-brand {
  font-family: var(--font-display);
  font-size: 22px; font-weight: 700;
}
.brand-nex { color: #fff; }
.brand-ergia { color: var(--green-2); }

.sidebar-nav {
  flex: 1;
  padding: 12px 0;
}
.nav-section {
  padding: 4px 12px;
  margin-bottom: 8px;
}
.nav-section-title {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-dim);
  padding: 8px 12px 6px;
}
.sidebar-nav a {
  display: flex; align-items: center; gap: 12px;
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  font-size: 14px; font-weight: 500;
  color: var(--text-secondary);
  transition: all 0.2s ease;
  position: relative;
}
.sidebar-nav a:hover {
  background: var(--glass-hover);
  color: var(--text-primary);
}
.sidebar-nav a.active {
  background: rgba(0,200,83,0.1);
  color: #fff;
}
.sidebar-nav a.active::before {
  content: '';
  position: absolute; left: -12px; top: 8px; bottom: 8px;
  width: 3px;
  background: var(--green-1);
  border-radius: 0 3px 3px 0;
}
.sidebar-nav a svg {
  flex-shrink: 0;
  opacity: 0.7;
}
.sidebar-nav a.active svg,
.sidebar-nav a:hover svg { opacity: 1; }

.badge-free {
  margin-left: auto;
  background: rgba(0,200,83,0.15);
  color: var(--green-2);
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.5px;
}
.badge-lock {
  margin-left: auto;
  font-size: 14px;
  opacity: 0.5;
}
.badge-count {
  margin-left: auto;
  background: #EF4444;
  color: #fff;
  padding: 1px 7px;
  border-radius: 10px;
  font-size: 11px;
  font-weight: 700;
}
.module-locked {
  opacity: 0.5;
}

.sidebar-footer {
  padding: 16px 20px;
  border-top: 1px solid var(--glass-border);
}
.user-card {
  display: flex; align-items: center; gap: 12px;
}
.user-avatar {
  width: 36px; height: 36px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--green-1), var(--cyan));
  display: flex; align-items: center; justify-content: center;
  font-size: 14px; font-weight: 700; color: #fff;
}
.user-info {
  flex: 1; min-width: 0;
}
.user-name {
  font-size: 13px; font-weight: 600; color: #fff;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.user-plan {
  font-size: 11px; color: var(--text-muted);
}
.btn-logout {
  background: none; border: none;
  color: var(--text-dim);
  padding: 4px;
  border-radius: 6px;
  transition: all 0.2s;
}
.btn-logout:hover { color: #EF4444; background: rgba(239,68,68,0.1); }

/* ============ MAIN AREA ============ */
.main-area {
  margin-left: var(--sidebar-width);
  min-height: 100vh;
  position: relative;
}

/* ============ TOPBAR ============ */
.topbar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 32px;
  height: var(--topbar-height);
  border-bottom: 1px solid var(--glass-border);
  background: rgba(17,24,39,0.7);
  backdrop-filter: blur(20px);
  position: sticky; top: 0;
  z-index: 50;
}
.topbar-left {
  display: flex; align-items: center; gap: 16px;
}
.topbar-title {
  font-family: var(--font-display);
  font-size: 18px; font-weight: 700;
}
.topbar-right {
  display: flex; align-items: center; gap: 12px;
}

/* ============ CARDS ============ */
.card {
  background: rgba(17,24,39,0.7);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: 24px;
  backdrop-filter: blur(10px);
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
}
.card:hover {
  border-color: var(--glass-border-hover);
}
.card-featured {
  border-color: rgba(0,200,83,0.3);
  background: rgba(0,200,83,0.04);
  box-shadow: 0 0 40px rgba(0,200,83,0.06);
}

/* ============ KPI CARDS ============ */
.kpi-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}
.kpi-card {
  background: rgba(17,24,39,0.7);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: 20px;
  position: relative;
  overflow: hidden;
}
.kpi-card::before {
  content: '';
  position: absolute; top: 0; left: 0; right: 0; height: 3px;
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}
.kpi-card.kpi-electric::before { background: linear-gradient(90deg, #FBBF24, #F59E0B); }
.kpi-card.kpi-gas::before { background: linear-gradient(90deg, #60A5FA, #3B82F6); }
.kpi-card.kpi-acpm::before { background: linear-gradient(90deg, #F87171, #EF4444); }
.kpi-card.kpi-cost::before { background: linear-gradient(90deg, var(--green-1), var(--cyan)); }

.kpi-label {
  font-size: 12px; color: var(--text-muted);
  text-transform: uppercase; letter-spacing: 0.5px;
  margin-bottom: 8px;
}
.kpi-value {
  font-family: var(--font-display);
  font-size: 28px; font-weight: 800;
  letter-spacing: -1px;
  margin-bottom: 4px;
}
.kpi-unit { font-size: 14px; font-weight: 400; color: var(--text-secondary); }
.kpi-change {
  display: inline-flex; align-items: center; gap: 4px;
  font-size: 12px; font-weight: 600;
  padding: 2px 8px; border-radius: 6px;
}
.kpi-change.positive { background: rgba(239,68,68,0.1); color: #F87171; }
.kpi-change.negative { background: rgba(0,200,83,0.1); color: var(--green-2); }

/* ============ BUTTONS ============ */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 10px 20px;
  border-radius: var(--radius-sm);
  font-size: 14px; font-weight: 600;
  border: none;
  transition: all 0.2s ease;
  font-family: var(--font-display);
}
.btn-primary {
  background: linear-gradient(135deg, var(--green-1), var(--green-dark));
  color: #fff;
  box-shadow: var(--shadow-green);
}
.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 24px rgba(0,200,83,0.35);
}
.btn-secondary {
  background: var(--glass);
  color: #fff;
  border: 1px solid var(--glass-border);
}
.btn-secondary:hover {
  background: var(--glass-hover);
  border-color: var(--glass-border-hover);
}
.btn-accent {
  background: linear-gradient(135deg, var(--cyan), var(--cyan-dark));
  color: #fff;
}
.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
  padding: 8px 12px;
}
.btn-ghost:hover { color: #fff; background: var(--glass); }
.btn-sm { padding: 6px 14px; font-size: 13px; }
.btn-lg { padding: 14px 28px; font-size: 16px; }
.btn-block { width: 100%; }

/* ============ FORM INPUTS ============ */
.form-group {
  margin-bottom: 20px;
}
.form-label {
  display: block;
  font-size: 13px; font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 6px;
}
.form-input {
  width: 100%;
  padding: 12px 16px;
  background: var(--glass);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
  color: #fff;
  font-size: 14px;
  transition: all 0.2s ease;
  outline: none;
}
.form-input:focus {
  border-color: var(--green-1);
  box-shadow: 0 0 0 3px rgba(0,200,83,0.1);
}
.form-input::placeholder { color: var(--text-dim); }
.form-input-icon {
  position: relative;
}
.form-input-icon .form-input { padding-left: 44px; }
.form-input-icon svg {
  position: absolute; left: 14px; top: 50%;
  transform: translateY(-50%);
  color: var(--text-dim);
}

/* ============ TABLES ============ */
.data-table {
  width: 100%;
  border-collapse: collapse;
}
.data-table thead th {
  text-align: left;
  font-size: 11px; font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-dim);
  padding: 12px 16px;
  border-bottom: 1px solid var(--glass-border);
}
.data-table tbody td {
  padding: 14px 16px;
  font-size: 14px;
  border-bottom: 1px solid rgba(255,255,255,0.03);
}
.data-table tbody tr:hover {
  background: var(--glass);
}

/* ============ CHIPS/TAGS ============ */
.chip {
  display: inline-flex; align-items: center; gap: 4px;
  padding: 4px 10px;
  border-radius: 6px;
  font-size: 12px; font-weight: 600;
}
.chip-electric { background: rgba(251,191,36,0.15); color: #FBBF24; }
.chip-gas { background: rgba(96,165,250,0.15); color: #60A5FA; }
.chip-acpm { background: rgba(248,113,113,0.15); color: #F87171; }
.chip-gasolina { background: rgba(167,139,250,0.15); color: #A78BFA; }
.chip-glp { background: rgba(52,211,153,0.15); color: #34D399; }
.chip-carbon { background: rgba(156,163,175,0.15); color: #9CA3AF; }
.chip-solar { background: rgba(251,191,36,0.15); color: #FCD34D; }
.chip-otro { background: rgba(148,163,184,0.15); color: #94A3B8; }

/* ============ SELECT / DROPDOWN ============ */
.form-select {
  width: 100%;
  padding: 10px 14px;
  background: var(--glass);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
  color: #fff;
  font-size: 14px;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg width='12' height='8' viewBox='0 0 12 8' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1.5L6 6.5L11 1.5' stroke='%2394A3B8' stroke-width='1.5' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  padding-right: 36px;
  outline: none;
  cursor: pointer;
}
.form-select:focus {
  border-color: var(--green-1);
}
.form-select option {
  background: var(--dark-2);
  color: #fff;
}

/* ============ TAB FILTERS ============ */
.tab-filters {
  display: flex; gap: 4px;
  padding: 4px;
  background: var(--glass);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
  width: fit-content;
  margin-bottom: 20px;
}
.tab-filter {
  padding: 8px 16px;
  border-radius: 6px;
  font-size: 13px; font-weight: 500;
  color: var(--text-secondary);
  border: none;
  background: transparent;
  transition: all 0.2s;
}
.tab-filter:hover { color: #fff; }
.tab-filter.active {
  background: var(--green-1);
  color: #fff;
  box-shadow: 0 2px 8px rgba(0,200,83,0.3);
}

/* ============ EMPTY STATES ============ */
.empty-state {
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  padding: 80px 40px;
  text-align: center;
}
.empty-icon {
  font-size: 48px; margin-bottom: 16px;
}
.empty-state h2 {
  font-family: var(--font-display);
  font-size: 24px; font-weight: 700;
  margin-bottom: 8px;
}
.empty-state p {
  color: var(--text-secondary);
  font-size: 15px;
  max-width: 400px;
  line-height: 1.6;
}

/* ============ TOAST/ALERT ============ */
.toast {
  position: fixed; bottom: 24px; right: 24px;
  padding: 14px 24px;
  border-radius: var(--radius-md);
  font-size: 14px; font-weight: 500;
  display: flex; align-items: center; gap: 10px;
  z-index: 9999;
  animation: toast-in 0.3s ease;
  box-shadow: var(--shadow-lg);
}
.toast-success { background: var(--green-1); color: #fff; }
.toast-error { background: #EF4444; color: #fff; }
.toast-info { background: var(--cyan); color: #fff; }
@keyframes toast-in {
  from { transform: translateY(20px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

/* ============ BACKGROUND EFFECTS ============ */
.bg-gradient-global {
  position: fixed; inset: 0; pointer-events: none; z-index: -1;
  background:
    radial-gradient(ellipse 60% 40% at 20% 0%, rgba(0,200,83,0.06) 0%, transparent 50%),
    radial-gradient(ellipse 40% 40% at 80% 80%, rgba(34,211,238,0.04) 0%, transparent 40%),
    var(--dark-1);
}
.grid-overlay-global {
  position: fixed; inset: 0; pointer-events: none; z-index: -1;
  background-image:
    linear-gradient(rgba(255,255,255,0.012) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.012) 1px, transparent 1px);
  background-size: 60px 60px;
}

/* ============ SCROLL CUSTOM ============ */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb {
  background: var(--glass-border);
  border-radius: 3px;
}
::-webkit-scrollbar-thumb:hover { background: rgba(255,255,255,0.15); }

/* ============ UTILITY ============ */
.text-green { color: var(--green-2); }
.text-cyan { color: var(--cyan); }
.text-muted { color: var(--text-muted); }
.text-sm { font-size: 13px; }
.text-xs { font-size: 11px; }
.fw-600 { font-weight: 600; }
.fw-700 { font-weight: 700; }
.font-display { font-family: var(--font-display); }
.mt-8 { margin-top: 8px; }
.mt-16 { margin-top: 16px; }
.mt-24 { margin-top: 24px; }
.mb-8 { margin-bottom: 8px; }
.mb-16 { margin-bottom: 16px; }
.mb-24 { margin-bottom: 24px; }
.gap-12 { gap: 12px; }
.gap-16 { gap: 16px; }
.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.w-full { width: 100%; }

/* ============ RESPONSIVE ============ */
@media (max-width: 1024px) {
  .sidebar {
    transform: translateX(-100%);
    transition: transform 0.3s ease;
  }
  .sidebar.open { transform: translateX(0); }
  .main-area { margin-left: 0; }
}
@media (max-width: 768px) {
  .kpi-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 480px) {
  .kpi-grid { grid-template-columns: 1fr; }
}

/* ============ LOCKED MODULE STATES ============ */
.locked-module {
  position: relative;
  border-radius: var(--radius-lg, 16px);
  overflow: hidden;
  min-height: 420px;
}
.locked-preview {
  padding: 24px;
  filter: blur(3px);
  opacity: 0.45;
  pointer-events: none;
  user-select: none;
}
.locked-preview-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}
.locked-preview-card {
  background: var(--glass, rgba(255,255,255,0.04));
  border: 1px solid var(--glass-border, rgba(255,255,255,0.08));
  border-radius: var(--radius-lg, 16px);
  padding: 20px;
  text-align: center;
}
.locked-preview-icon { font-size: 28px; margin-bottom: 8px; }
.locked-preview-label {
  font-size: 12px;
  color: var(--text-dim, #888);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 4px;
}
.locked-preview-value {
  font-family: var(--font-display, 'Inter', sans-serif);
  font-size: 24px;
  font-weight: 700;
  color: var(--text-secondary, #ccc);
}
.locked-preview-table {
  background: var(--glass, rgba(255,255,255,0.04));
  border: 1px solid var(--glass-border, rgba(255,255,255,0.08));
  border-radius: var(--radius-lg, 16px);
  overflow: hidden;
}
.locked-preview-row {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  padding: 12px 20px;
  font-size: 13px;
  color: var(--text-secondary, #ccc);
  border-bottom: 1px solid var(--glass-border, rgba(255,255,255,0.06));
}
.locked-preview-row:last-child { border-bottom: none; }
.locked-preview-header {
  font-weight: 600;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-dim, #888);
  background: rgba(255,255,255,0.02);
}
.locked-badge {
  display: inline-block;
  background: rgba(0, 230, 118, 0.12);
  color: var(--green-1, #00e676);
  padding: 2px 10px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 500;
}
.locked-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: radial-gradient(ellipse at center, rgba(10,14,20,0.7) 0%, rgba(10,14,20,0.92) 100%);
  z-index: 2;
}
.locked-overlay-content {
  text-align: center;
  max-width: 460px;
  padding: 40px 32px;
}
.locked-icon { font-size: 48px; margin-bottom: 16px; }
.locked-title {
  font-family: var(--font-display, 'Inter', sans-serif);
  font-size: 24px;
  font-weight: 700;
  color: #fff;
  margin: 0 0 12px 0;
}
.locked-description {
  color: var(--text-secondary, #ccc);
  font-size: 15px;
  line-height: 1.6;
  margin: 0 0 24px 0;
}
.locked-features {
  text-align: left;
  margin-bottom: 24px;
}
.locked-feature-item {
  padding: 8px 0;
  font-size: 14px;
  color: var(--text-secondary, #ccc);
  border-bottom: 1px solid var(--glass-border, rgba(255,255,255,0.06));
}
.locked-feature-item:last-child { border-bottom: none; }
.locked-requirement {
  font-size: 13px;
  color: var(--text-dim, #888);
  margin: 0 0 20px 0;
}
.locked-requirement strong {
  color: var(--green-1, #00e676);
}
.locked-cta {
  background: linear-gradient(135deg, var(--green-1, #00e676), var(--green-2, #00c853));
  color: var(--dark-2, #0a0e14);
  border: none;
  padding: 12px 32px;
  border-radius: var(--radius-lg, 16px);
  font-size: 15px;
  font-weight: 700;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.locked-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0, 230, 118, 0.25);
}