/* ════════════════════════════════════════════════
   SCROLL PROGRESS
════════════════════════════════════════════════ */
#prog {
  position: fixed; top: 0; left: 0; height: 2px;
  background: linear-gradient(90deg, var(--accent-a), var(--accent-c));
  z-index: 500; width: 0;
  box-shadow: 0 0 8px rgba(124,58,237,.6);
  transition: width .1s linear;
}

/* ════════════════════════════════════════════════
   AURORA CANVAS
════════════════════════════════════════════════ */
#aurora-canvas {
  position: fixed; inset: 0;
  width: 100%; height: 100%; z-index: 0;
  filter: saturate(220%) contrast(130%) brightness(140%) blur(90px);
  /* Light mode filter override è in light-mode.css */
}

/* ════════════════════════════════════════════════
   MOUSE ORB
════════════════════════════════════════════════ */
#mouse-orb {
  position: fixed; width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(124,58,237,.25) 0%, rgba(6,182,212,.15) 40%, transparent 70%);
  pointer-events: none; z-index: 1;
  transform: translate(-50%,-50%);
  will-change: left, top;
  animation: orbMorph 8s ease-in-out infinite both alternate,
             orbColors 10s linear infinite;
}
@keyframes orbMorph {
  0%   { border-radius: 40% 60% 70% 30% / 40% 50% 60% 50% }
  34%  { border-radius: 70% 30% 50% 50% / 30% 30% 70% 70% }
  67%  { border-radius: 100% 60% 60% 100% / 100% 100% 60% 60% }
  100% { border-radius: 40% 60% 70% 30% / 40% 50% 60% 50% }
}
@keyframes orbColors {
  0%   { filter: hue-rotate(0deg) }
  100% { filter: hue-rotate(360deg) }
}

/* ════════════════════════════════════════════════
   SECTIONS
════════════════════════════════════════════════ */
.sec {
  position: relative; z-index: 2;
  max-width: 1080px; margin: 0 auto;
  padding: 7rem 1.5rem;
}
@media(max-width:640px){ .sec { padding: 4.5rem 1.25rem } }
.sec-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: .65rem; letter-spacing: .18em;
  color: var(--t3); text-transform: uppercase; margin-bottom: .5rem;
}
.sec-title {
  font-size: clamp(1.6rem, 3.5vw, 2.2rem);
  font-weight: 700; letter-spacing: -.03em;
  color: var(--t1); margin-bottom: 3rem; line-height: 1.15;
}
.divider {
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border) 30%, var(--border) 70%, transparent);
  position: relative; z-index: 2;
  max-width: 1080px; margin: 0 auto;
}

/* ════════════════════════════════════════════════
   REVEAL ANIMATION — più morbida in light (override in light-mode.css)
════════════════════════════════════════════════ */
.reveal { opacity: 0; transform: translateY(20px); transition: opacity .8s var(--ease), transform .8s var(--ease) }
.reveal.vis { opacity: 1; transform: translateY(0) }

/* ════════════════════════════════════════════════
   FOOTER
════════════════════════════════════════════════ */
footer {
  position: relative; z-index: 2;
  border-top: 1px solid var(--border);
  padding: 1.75rem 1.5rem; text-align: center;
}
footer p {
  font-family: 'JetBrains Mono', monospace;
  font-size: .6rem; color: var(--t3); letter-spacing: .04em;
}