/* ═══════════════════════════════════════════════════════════════════
   IMPORFACTORY Premium — Sistema de Gestión
   Subdominio: impor.imporchina.com
   2026-05-27 Fase 0 (Foundation)
   ═══════════════════════════════════════════════════════════════════ */

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

:root[data-theme='dark'], :root {
  /* ── Fondos editoriales ── */
  --imf-bg-base:        #0A0E1A;
  --imf-bg-surface:     #111729;
  --imf-bg-elevated:    #182135;
  --imf-bg-overlay:     rgba(10,14,26,0.72);

  /* ── Marca GRUPO IMPOR ── */
  --imf-navy:           #0B1426;
  --imf-cyan:           #00BFFF;
  --imf-cyan-bright:    #33D6FF;
  --imf-cyan-glow:      rgba(0,191,255,0.18);
  --imf-cyan-dim:       rgba(0,191,255,0.08);

  /* ── Acentos editoriales ── */
  --imf-violet:         #7C5CFF;
  --imf-gold:           #E6B800;
  --imf-coral:          #FF6B6B;

  /* ── Estados ── */
  --imf-success:        #2BD9A0;
  --imf-warn:           #F5A524;
  --imf-danger:         #FF4D4F;
  --imf-info:           #00BFFF;

  /* ── Texto ── */
  --imf-text-primary:   #F5F7FA;
  --imf-text-secondary: #B4BDD3;
  --imf-text-muted:     #6E7894;
  --imf-text-on-cyan:   #0B1426;

  /* ── Bordes ── */
  --imf-border:         rgba(255,255,255,0.06);
  --imf-border-strong:  rgba(255,255,255,0.12);
  --imf-divider:        rgba(255,255,255,0.04);

  /* ── Sombras editoriales ── */
  --imf-shadow-sm:  0 1px 2px rgba(0,0,0,0.4);
  --imf-shadow-md:  0 4px 12px rgba(0,0,0,0.35), 0 0 0 1px rgba(255,255,255,0.04);
  --imf-shadow-lg:  0 20px 50px rgba(0,0,0,0.5), 0 0 0 1px rgba(255,255,255,0.06);
  --imf-shadow-glow: 0 0 24px rgba(0,191,255,0.25);

  /* ── Spacing scale ── */
  --sp-1: 4px;   --sp-2: 8px;    --sp-3: 12px;
  --sp-4: 16px;  --sp-5: 24px;   --sp-6: 32px;
  --sp-7: 48px;  --sp-8: 64px;   --sp-9: 96px;

  /* ── Border radius ── */
  --rd-sm: 6px;  --rd-md: 10px;  --rd-lg: 14px;
  --rd-xl: 20px; --rd-pill: 999px;

  /* ── Tipografía ── */
  --ff-sans:  'Inter', -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
  --ff-serif: 'Spectral', Georgia, 'Times New Roman', serif;
  --ff-mono:  'JetBrains Mono', 'Fira Code', 'SF Mono', Consolas, monospace;
}

:root[data-theme='light'] {
  --imf-bg-base:        #FAFBFC;
  --imf-bg-surface:     #FFFFFF;
  --imf-bg-elevated:    #FFFFFF;
  --imf-text-primary:   #0B1426;
  --imf-text-secondary: #475569;
  --imf-text-muted:     #94A3B8;
  --imf-border:         rgba(11,20,38,0.08);
  --imf-border-strong:  rgba(11,20,38,0.16);
  --imf-divider:        rgba(11,20,38,0.04);
  --imf-shadow-md:      0 4px 12px rgba(11,20,38,0.08), 0 0 0 1px rgba(11,20,38,0.04);
}

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

html, body {
  margin: 0;
  padding: 0;
  background: var(--imf-bg-base);
  color: var(--imf-text-primary);
  font-family: var(--ff-sans);
  font-size: 14px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  font-feature-settings: 'cv11', 'ss01';
  min-height: 100vh;
}

a {
  color: var(--imf-cyan);
  text-decoration: none;
  transition: color 120ms ease;
}
a:hover { color: var(--imf-cyan-bright); }

::selection {
  background: var(--imf-cyan-glow);
  color: var(--imf-text-primary);
}

/* ═══ Layout principal ═══ */
.imf-shell {
  display: grid;
  grid-template-columns: 256px 1fr;
  min-height: 100vh;
}
.imf-shell--collapsed { grid-template-columns: 64px 1fr; }

/* ═══ Sidebar ═══ */
.imf-sidebar {
  background: var(--imf-bg-base);
  border-right: 1px solid var(--imf-border);
  display: flex;
  flex-direction: column;
  position: sticky;
  top: 0;
  height: 100vh;
  overflow-y: auto;
  overflow-x: hidden;
}

.imf-sidebar__brand {
  padding: var(--sp-5) var(--sp-4);
  border-bottom: 1px solid var(--imf-divider);
  display: flex;
  align-items: center;
  gap: var(--sp-3);
}
.imf-sidebar__brand-logo {
  width: 32px; height: 32px;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--imf-cyan), var(--imf-violet));
  display: grid;
  place-items: center;
  color: var(--imf-navy);
  font-weight: 700;
  font-size: 14px;
}
.imf-sidebar__brand-name {
  font-family: var(--ff-serif);
  font-size: 16px;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--imf-text-primary);
}

.imf-sidebar__nav { flex: 1; padding: var(--sp-3); }

.imf-sidebar__section-label {
  font-size: 10px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1.2px;
  color: var(--imf-text-muted);
  padding: var(--sp-4) var(--sp-3) var(--sp-2);
}

.imf-sidebar__item {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  padding: var(--sp-2) var(--sp-3);
  margin-bottom: 2px;
  border-radius: var(--rd-md);
  color: var(--imf-text-secondary);
  font-size: 13.5px;
  font-weight: 500;
  cursor: pointer;
  transition: all 140ms ease;
  position: relative;
  text-decoration: none;
}
.imf-sidebar__item:hover {
  background: var(--imf-cyan-dim);
  color: var(--imf-text-primary);
}
.imf-sidebar__item.is-active {
  background: var(--imf-cyan-dim);
  color: var(--imf-text-primary);
}
.imf-sidebar__item.is-active::before {
  content: '';
  position: absolute;
  left: -8px; top: 8px; bottom: 8px;
  width: 2px;
  background: var(--imf-cyan);
  border-radius: 0 2px 2px 0;
}
.imf-sidebar__item-icon { width: 18px; height: 18px; flex-shrink: 0; opacity: 0.85; }
.imf-sidebar__item-badge {
  margin-left: auto;
  font-size: 10px;
  padding: 2px 8px;
  border-radius: var(--rd-pill);
  background: var(--imf-cyan);
  color: var(--imf-text-on-cyan);
  font-weight: 600;
}

.imf-sidebar__footer {
  padding: var(--sp-4);
  border-top: 1px solid var(--imf-divider);
  display: flex;
  align-items: center;
  gap: var(--sp-3);
}
.imf-sidebar__avatar {
  width: 32px; height: 32px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--imf-cyan), var(--imf-violet));
  display: grid; place-items: center;
  color: var(--imf-navy);
  font-weight: 600;
  font-size: 13px;
  position: relative;
}
.imf-sidebar__avatar::after {
  content: '';
  position: absolute;
  bottom: -2px; right: -2px;
  width: 10px; height: 10px;
  border-radius: 50%;
  background: var(--imf-success);
  border: 2px solid var(--imf-bg-base);
}

/* ═══ Topbar ═══ */
.imf-topbar {
  height: 56px;
  background: var(--imf-bg-surface);
  border-bottom: 1px solid var(--imf-border);
  display: flex;
  align-items: center;
  gap: var(--sp-4);
  padding: 0 var(--sp-5);
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(12px);
}

.imf-topbar__breadcrumb {
  display: flex; align-items: center; gap: var(--sp-2);
  font-size: 13px;
  color: var(--imf-text-secondary);
}
.imf-topbar__breadcrumb-current { color: var(--imf-text-primary); font-weight: 500; }

.imf-topbar__search {
  flex: 1;
  max-width: 480px;
  margin: 0 auto;
  position: relative;
}
.imf-topbar__search input {
  width: 100%;
  background: var(--imf-bg-base);
  border: 1px solid var(--imf-border);
  border-radius: var(--rd-md);
  padding: 8px 12px 8px 36px;
  font-size: 13px;
  color: var(--imf-text-primary);
  font-family: var(--ff-sans);
  transition: border 140ms ease;
}
.imf-topbar__search input::placeholder { color: var(--imf-text-muted); }
.imf-topbar__search input:focus {
  outline: none;
  border-color: var(--imf-cyan);
  box-shadow: 0 0 0 3px var(--imf-cyan-dim);
}

.imf-topbar__actions { display: flex; align-items: center; gap: var(--sp-3); margin-left: auto; }

/* ═══ Main content area ═══ */
.imf-main {
  padding: var(--sp-5) var(--sp-6);
  max-width: 1440px;
  margin: 0 auto;
  width: 100%;
}

.imf-page-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  margin-bottom: var(--sp-6);
  padding-bottom: var(--sp-4);
  border-bottom: 1px solid var(--imf-divider);
}
.imf-page-title {
  font-family: var(--ff-serif);
  font-size: 30px;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--imf-text-primary);
  margin: 0;
}
.imf-page-subtitle {
  font-size: 13.5px;
  color: var(--imf-text-secondary);
  margin: var(--sp-1) 0 0;
}

/* ═══ Cards ═══ */
.imf-card {
  background: var(--imf-bg-surface);
  border: 1px solid var(--imf-border);
  border-radius: var(--rd-lg);
  padding: var(--sp-5);
  transition: border-color 140ms ease, box-shadow 140ms ease;
}
.imf-card:hover { border-color: var(--imf-border-strong); box-shadow: var(--imf-shadow-md); }

/* ═══ KPI Card ═══ */
.imf-kpi {
  background: var(--imf-bg-surface);
  border: 1px solid var(--imf-border);
  border-radius: var(--rd-lg);
  padding: var(--sp-5);
  position: relative;
  overflow: hidden;
}
.imf-kpi__label {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  color: var(--imf-text-muted);
  font-weight: 600;
  margin-bottom: var(--sp-2);
}
.imf-kpi__value {
  font-family: var(--ff-sans);
  font-size: 32px;
  font-weight: 700;
  color: var(--imf-text-primary);
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.02em;
}
.imf-kpi__delta {
  font-size: 12px;
  font-weight: 500;
  margin-top: var(--sp-2);
  display: inline-flex;
  align-items: center;
  gap: 4px;
}
.imf-kpi__delta--up { color: var(--imf-success); }
.imf-kpi__delta--down { color: var(--imf-danger); }
.imf-kpi__delta--flat { color: var(--imf-text-muted); }

/* ═══ Grid utilities ═══ */
.imf-grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--sp-4); }
.imf-grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--sp-4); }
.imf-grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--sp-4); }

@media (max-width: 1200px) {
  .imf-grid-4 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
  .imf-grid-4, .imf-grid-3, .imf-grid-2 { grid-template-columns: 1fr; }
  .imf-shell { grid-template-columns: 1fr; }
  .imf-sidebar { display: none; }
}

/* ═══ Buttons ═══ */
.imf-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  padding: 10px 16px;
  border-radius: var(--rd-md);
  font-size: 13.5px;
  font-weight: 600;
  font-family: var(--ff-sans);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 140ms ease;
  text-decoration: none;
  line-height: 1;
}
.imf-btn--primary {
  background: var(--imf-cyan);
  color: var(--imf-text-on-cyan);
}
.imf-btn--primary:hover {
  background: var(--imf-cyan-bright);
  box-shadow: var(--imf-shadow-glow);
  color: var(--imf-text-on-cyan);
}
.imf-btn--secondary {
  background: var(--imf-bg-surface);
  color: var(--imf-text-primary);
  border-color: var(--imf-border-strong);
}
.imf-btn--secondary:hover { background: var(--imf-bg-elevated); color: var(--imf-text-primary); }
.imf-btn--ghost {
  background: transparent;
  color: var(--imf-text-secondary);
}
.imf-btn--ghost:hover { background: var(--imf-cyan-dim); color: var(--imf-text-primary); }
.imf-btn--ai {
  background: linear-gradient(135deg, var(--imf-violet), var(--imf-cyan));
  color: #fff;
  font-weight: 600;
}
.imf-btn--ai:hover { box-shadow: var(--imf-shadow-glow); transform: translateY(-1px); color: #fff; }

/* ═══ Badges ═══ */
.imf-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 2px 10px;
  border-radius: var(--rd-pill);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.3px;
}
.imf-badge--success { background: rgba(43,217,160,0.15); color: var(--imf-success); }
.imf-badge--warn { background: rgba(245,165,36,0.15); color: var(--imf-warn); }
.imf-badge--danger { background: rgba(255,77,79,0.15); color: var(--imf-danger); }
.imf-badge--info { background: var(--imf-cyan-dim); color: var(--imf-cyan); }

/* ═══ Landing premium hero ═══ */
.imf-landing {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: var(--sp-6);
  background:
    radial-gradient(at 20% 20%, var(--imf-cyan-dim), transparent 50%),
    radial-gradient(at 80% 80%, rgba(124,92,255,0.08), transparent 50%),
    var(--imf-bg-base);
}
.imf-landing__inner {
  max-width: 960px;
  text-align: center;
}
.imf-landing__eyebrow {
  display: inline-block;
  font-size: 12px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--imf-cyan);
  font-weight: 600;
  margin-bottom: var(--sp-4);
  padding: 6px 14px;
  border: 1px solid var(--imf-cyan-dim);
  border-radius: var(--rd-pill);
  background: var(--imf-cyan-dim);
}
.imf-landing__title {
  font-family: var(--ff-serif);
  font-size: clamp(40px, 6vw, 64px);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.05;
  background: linear-gradient(135deg, #F5F7FA 0%, #B4BDD3 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  margin: 0 0 var(--sp-4);
}
.imf-landing__subtitle {
  font-size: 18px;
  color: var(--imf-text-secondary);
  line-height: 1.6;
  margin-bottom: var(--sp-6);
  max-width: 640px;
  margin-left: auto;
  margin-right: auto;
}
.imf-landing__cta-group {
  display: flex;
  gap: var(--sp-3);
  justify-content: center;
  flex-wrap: wrap;
}

.imf-landing__features {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--sp-4);
  margin-top: var(--sp-8);
  max-width: 960px;
  margin-left: auto;
  margin-right: auto;
  text-align: left;
}
@media (max-width: 768px) { .imf-landing__features { grid-template-columns: 1fr; } }

.imf-feature {
  padding: var(--sp-5);
  background: var(--imf-bg-surface);
  border: 1px solid var(--imf-border);
  border-radius: var(--rd-lg);
  transition: border-color 140ms ease, transform 200ms ease;
}
.imf-feature:hover {
  border-color: var(--imf-border-strong);
  transform: translateY(-2px);
}
.imf-feature__icon {
  width: 44px; height: 44px;
  border-radius: var(--rd-md);
  background: var(--imf-cyan-dim);
  color: var(--imf-cyan);
  display: grid; place-items: center;
  margin-bottom: var(--sp-4);
  font-size: 22px;
}
.imf-feature__title {
  font-size: 16px;
  font-weight: 600;
  color: var(--imf-text-primary);
  margin-bottom: var(--sp-2);
  font-family: var(--ff-serif);
  letter-spacing: -0.01em;
}
.imf-feature__desc {
  font-size: 13.5px;
  color: var(--imf-text-secondary);
  line-height: 1.6;
}