/* ============================================================
   iDataCUBO — Design Tokens & Base Styles
   Habilidad: disenador-experto
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=Outfit:wght@300;400;500;600;700;800&display=swap');

/* ── Design Tokens ── */
:root {
  /* Brand */
  --clr-primary:       #5B4BF5;
  --clr-primary-light: #7B6EF8;
  --clr-primary-dark:  #4535D4;
  --clr-accent:        #00E5FF;
  --clr-accent-glow:   rgba(0, 229, 255, 0.25);
  --clr-gradient:      linear-gradient(135deg, #5B4BF5 0%, #00E5FF 100%);
  --clr-gradient-hero: linear-gradient(135deg, #3a2fc4 0%, #5B4BF5 50%, #00b8cc 100%);

  /* Typography */
  --ff-heading: 'Inter', sans-serif;
  --ff-body:    'Outfit', sans-serif;
  --fs-xs:   0.75rem;
  --fs-sm:   0.875rem;
  --fs-base: 1rem;
  --fs-lg:   1.125rem;
  --fs-xl:   1.25rem;
  --fs-2xl:  1.5rem;
  --fs-3xl:  1.875rem;
  --fs-4xl:  2.25rem;
  --fs-5xl:  3rem;
  --fs-6xl:  3.75rem;

  /* Spacing */
  --sp-1:  0.25rem;
  --sp-2:  0.5rem;
  --sp-3:  0.75rem;
  --sp-4:  1rem;
  --sp-5:  1.25rem;
  --sp-6:  1.5rem;
  --sp-8:  2rem;
  --sp-10: 2.5rem;
  --sp-12: 3rem;
  --sp-16: 4rem;
  --sp-20: 5rem;
  --sp-24: 6rem;

  /* Border */
  --radius-sm:   0.375rem;
  --radius-md:   0.75rem;
  --radius-lg:   1rem;
  --radius-xl:   1.5rem;
  --radius-full: 9999px;

  /* Shadow */
  --shadow-sm:  0 1px 3px rgba(0,0,0,.12);
  --shadow-md:  0 4px 16px rgba(0,0,0,.14);
  --shadow-lg:  0 8px 32px rgba(0,0,0,.18);
  --shadow-glow: 0 0 40px rgba(91,75,245,.35);
  --shadow-cyan: 0 0 30px rgba(0,229,255,.25);

  /* Transition */
  --transition-fast:   150ms ease;
  --transition-base:   300ms ease;
  --transition-slow:   500ms ease;

  /* Z-index */
  --z-navbar:  1000;
  --z-modal:   2000;
  --z-tooltip: 3000;
}

/* ── Light Theme (default) ── */
[data-theme="light"], :root {
  --clr-bg:          #F8F9FE;
  --clr-bg-alt:      #EEF0FC;
  --clr-surface:     #FFFFFF;
  --clr-surface-alt: #F3F4FD;
  --clr-border:      rgba(91,75,245,.15);
  --clr-text:        #0D0F24;
  --clr-text-muted:  #5A5F78;
  --clr-text-light:  #9499B2;
  --clr-overlay:     rgba(255,255,255,.7);
  --clr-glass:       rgba(255,255,255,.6);
  --clr-glass-border:rgba(255,255,255,.8);
  --clr-card-shadow: rgba(91,75,245,.12);
  --clr-nav-bg:      rgba(248,249,254,.85);
}

/* ── Dark Theme ── */
[data-theme="dark"] {
  --clr-bg:          #0D0F1A;
  --clr-bg-alt:      #111321;
  --clr-surface:     #1A1D2E;
  --clr-surface-alt: #21253A;
  --clr-border:      rgba(91,75,245,.25);
  --clr-text:        #E8ECFF;
  --clr-text-muted:  #8890B5;
  --clr-text-light:  #5A6080;
  --clr-overlay:     rgba(13,15,26,.7);
  --clr-glass:       rgba(26,29,46,.65);
  --clr-glass-border:rgba(91,75,245,.2);
  --clr-card-shadow: rgba(0,0,0,.4);
  --clr-nav-bg:      rgba(13,15,26,.85);
}

/* ── Reset ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: var(--ff-body);
  background-color: var(--clr-bg);
  color: var(--clr-text);
  line-height: 1.65;
  transition: background-color var(--transition-base), color var(--transition-base);
  overflow-x: hidden;
}
img, svg { display: block; max-width: 100%; }
a { text-decoration: none; color: inherit; }
ul, ol { list-style: none; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }
input, textarea, select { font-family: inherit; }
h1,h2,h3,h4,h5,h6 { font-family: var(--ff-heading); line-height: 1.2; font-weight: 700; }

/* ── Scrollbar ── */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--clr-bg-alt); }
::-webkit-scrollbar-thumb { background: var(--clr-primary); border-radius: var(--radius-full); }

/* ── Selection ── */
::selection { background: var(--clr-primary); color: white; }

/* ── Layout ── */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--sp-6);
}
section { padding: var(--sp-24) 0; }

/* ── Typography Utilities ── */
.text-gradient {
  background: var(--clr-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.section-label {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  font-size: var(--fs-sm);
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--clr-primary);
  background: rgba(91,75,245,.1);
  border: 1px solid rgba(91,75,245,.25);
  padding: var(--sp-2) var(--sp-4);
  border-radius: var(--radius-full);
  margin-bottom: var(--sp-4);
}
.section-title {
  font-size: clamp(var(--fs-3xl), 4vw, var(--fs-5xl));
  font-weight: 800;
  margin-bottom: var(--sp-4);
}
.section-subtitle {
  font-size: var(--fs-lg);
  color: var(--clr-text-muted);
  max-width: 640px;
}
.section-header { margin-bottom: var(--sp-16); }
.section-header.centered { text-align: center; }
.section-header.centered .section-subtitle { margin: 0 auto; }

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  padding: 0.75rem 1.75rem;
  border-radius: var(--radius-full);
  font-weight: 600;
  font-size: var(--fs-base);
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}
.btn::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(255,255,255,.12);
  opacity: 0;
  transition: opacity var(--transition-fast);
}
.btn:hover::before { opacity: 1; }

.btn-primary {
  background: var(--clr-gradient);
  color: white;
  box-shadow: 0 4px 20px rgba(91,75,245,.4);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(91,75,245,.5);
}
.btn-outline {
  border: 2px solid var(--clr-border);
  color: var(--clr-text);
  background: var(--clr-glass);
  backdrop-filter: blur(10px);
}
.btn-outline:hover {
  border-color: var(--clr-primary);
  color: var(--clr-primary);
  transform: translateY(-2px);
}
.btn-sm { padding: 0.5rem 1.25rem; font-size: var(--fs-sm); }
.btn-lg { padding: 1rem 2.25rem; font-size: var(--fs-lg); }

/* ── Card Base ── */
.card {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-xl);
  padding: var(--sp-8);
  transition: all var(--transition-base);
  box-shadow: var(--shadow-sm);
}
.card:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 48px var(--clr-card-shadow);
  border-color: var(--clr-primary);
}

/* ── Glass Card ── */
.glass-card {
  background: var(--clr-glass);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--clr-glass-border);
  border-radius: var(--radius-xl);
}

/* ── Grid Utilities ── */
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--sp-8); }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--sp-8); }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--sp-6); }

/* ── Flex Utilities ── */
.flex { display: flex; }
.flex-center { display: flex; align-items: center; justify-content: center; }
.flex-between { display: flex; align-items: center; justify-content: space-between; }
.gap-2 { gap: var(--sp-2); }
.gap-4 { gap: var(--sp-4); }
.gap-6 { gap: var(--sp-6); }
.gap-8 { gap: var(--sp-8); }

/* ── Animated background blobs ── */
.bg-blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.35;
  pointer-events: none;
  animation: blobFloat 8s ease-in-out infinite;
}
@keyframes blobFloat {
  0%, 100% { transform: translateY(0) scale(1); }
  50%       { transform: translateY(-30px) scale(1.05); }
}

/* ── Reveal animation ── */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}
.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }
.reveal-delay-5 { transition-delay: 0.5s; }

/* ── Badge / Chip ── */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 12px;
  border-radius: var(--radius-full);
  font-size: var(--fs-xs);
  font-weight: 600;
  letter-spacing: .04em;
}
.badge-primary { background: rgba(91,75,245,.15); color: var(--clr-primary); border: 1px solid rgba(91,75,245,.3); }
.badge-accent  { background: rgba(0,229,255,.12); color: #00b8cc; border: 1px solid rgba(0,229,255,.3); }

/* ── Responsive ── */
@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
  section { padding: var(--sp-16) 0; }
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .container { padding: 0 var(--sp-5); }
  .section-title { font-size: var(--fs-3xl); }
}