/* ============ TOKENS ============ */
:root {
  --bg:           #0a0a0f;
  --bg-soft:      #11111a;
  --surface:      #16161f;
  --surface-2:    #1c1c28;
  --line:         rgba(255,255,255,0.08);
  --line-strong:  rgba(255,255,255,0.16);

  --text:         #ECEAF4;
  --text-soft:    #B5B0CC;
  --text-mute:    #6E6982;

  --violet-300:   oklch(0.78 0.16 295);
  --violet-500:   oklch(0.62 0.22 295);
  --violet-600:   oklch(0.54 0.22 290);
  --violet-700:   oklch(0.42 0.18 285);
  --violet-glow:  oklch(0.62 0.22 295 / 0.45);
  --violet-faint: oklch(0.62 0.22 295 / 0.10);
  --magenta-500:  oklch(0.62 0.22 330);

  --radius-sm: 8px;
  --radius:    14px;
  --radius-lg: 22px;

  --t-fast:  0.18s cubic-bezier(.2,.8,.2,1);
  --t:       0.34s cubic-bezier(.2,.8,.2,1);
  --t-slow:  0.7s  cubic-bezier(.16,1,.3,1);

  --font-display: 'Space Grotesk', system-ui, sans-serif;
  --font-mono:    'JetBrains Mono', ui-monospace, monospace;
  --container: 1200px;
}

/* ============ RESET ============ */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-display);
  font-weight: 400;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; border: none; background: none; color: inherit; }
img { max-width: 100%; display: block; }
::selection { background: var(--violet-500); color: white; }

/* ============ AMBIENT BG ============ */
.ambient {
  position: fixed; inset: 0;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
}
.ambient::before, .ambient::after {
  content: "";
  position: absolute;
  width: 60vmax; height: 60vmax;
  border-radius: 50%;
  filter: blur(120px);
  opacity: 0.35;
  will-change: transform;
}
.ambient::before {
  background: radial-gradient(circle, var(--violet-500) 0%, transparent 60%);
  top: -20vmax; left: -20vmax;
  animation: drift1 22s ease-in-out infinite alternate;
}
.ambient::after {
  background: radial-gradient(circle, var(--magenta-500) 0%, transparent 60%);
  bottom: -25vmax; right: -25vmax;
  opacity: 0.22;
  animation: drift2 28s ease-in-out infinite alternate;
}
@keyframes drift1 {
  0%   { transform: translate(0,0) scale(1); }
  100% { transform: translate(10vmax, 8vmax) scale(1.15); }
}
@keyframes drift2 {
  0%   { transform: translate(0,0) scale(1); }
  100% { transform: translate(-12vmax, -6vmax) scale(1.1); }
}

.grid-overlay {
  position: fixed; inset: 0;
  pointer-events: none;
  z-index: 0;
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 80px 80px;
  mask-image: radial-gradient(ellipse at center, black 30%, transparent 75%);
  opacity: 0.35;
}

.cursor-glow {
  position: fixed;
  width: 180px; height: 180px;
  border-radius: 50%;
  background: radial-gradient(circle, var(--violet-glow) 0%, transparent 60%);
  pointer-events: none;
  z-index: 1;
  transform: translate(-50%, -50%);
  transition: opacity 0.4s ease;
  mix-blend-mode: screen;
  opacity: 0;
}
body:hover .cursor-glow { opacity: 1; }

main { position: relative; z-index: 2; }

/* ============ BOTONES GLOBALES ============ */
.btn {
  font-family: var(--font-display);
  display: inline-flex; align-items: center; gap: 8px;
  padding: 10px 20px;
  border-radius: 999px;
  font-size: 14px; font-weight: 500;
  transition: all var(--t);
  border: 1px solid transparent;
  position: relative;
  overflow: hidden;
}
.btn-primary {
  background: var(--violet-500);
  color: white;
  box-shadow: 0 8px 24px var(--violet-glow);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 30px var(--violet-glow);
  background: var(--violet-600);
}
.btn-ghost {
  background: transparent;
  border-color: var(--line-strong);
  color: var(--text);
}
.btn-ghost:hover {
  border-color: var(--violet-500);
  background: var(--violet-faint);
  transform: translateY(-2px);
}
.btn i { font-size: 12px; }

/* ============ SECCIONES GENÉRICAS ============ */
#home, #about, #projects, #contact {
  scroll-margin-top: 110px;
}
section.s {
  max-width: var(--container);
  margin: 0 auto;
  padding: 50px 32px;
}
.section-head {
  display: flex; align-items: end; justify-content: space-between;
  gap: 24px;
  margin-bottom: 56px;
  flex-wrap: wrap;
}
.section-eyebrow {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--violet-300);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  display: inline-flex; align-items: center; gap: 10px;
  margin-bottom: 14px;
}
.section-eyebrow::before {
  content: "";
  width: 28px; height: 1px;
  background: var(--violet-500);
}
.section-head h2 {
  font-family: var(--font-display);
  font-size: clamp(32px, 4vw, 52px);
  font-weight: 600;
  line-height: 1.05;
  letter-spacing: -0.025em;
  max-width: 700px;
}
.section-head h2 em {
  font-style: normal;
  color: var(--violet-300);
}
.section-meta {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-mute);
}

/* ============ REVEAL ANIMATIONS ============ */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.9s cubic-bezier(.16,1,.3,1), transform 0.9s cubic-bezier(.16,1,.3,1);
}
.reveal.in { opacity: 1; transform: translateY(0); }
.reveal.delay-1 { transition-delay: 0.08s; }
.reveal.delay-2 { transition-delay: 0.16s; }
.reveal.delay-3 { transition-delay: 0.24s; }
.reveal.delay-4 { transition-delay: 0.32s; }

/* ============ RESPONSIVE GLOBAL ============ */
@media (max-width: 920px) {
  section.s { padding: 50px 24px; }
}
@media (max-width: 560px) {
  .stats { grid-template-columns: 1fr; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01s !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01s !important;
  }
}