/* ============================================================
   SOFT & ARTS — animations.css
   CSS keyframes + IntersectionObserver trigger classes
   Replaces: motion/react (Framer Motion)
   ============================================================ */

/* ------------------------------------------------------------
   1. ENTRY ANIMATIONS — triggered by IntersectionObserver
      Elements start in [data-animate] state (invisible)
      JS adds .animate-in class when element enters viewport
   ------------------------------------------------------------ */

/* Default: elements with data-animate are invisible until triggered */
[data-animate] {
  opacity: 0;
  transition: opacity 0.7s ease, transform 0.7s ease;
  will-change: opacity, transform;
}

/* Fade in from left — Hero text (replaces motion initial x:-50) */
[data-animate="fade-left"] {
  transform: translateX(-3rem);
}

/* Fade in from right */
[data-animate="fade-right"] {
  transform: translateX(3rem);
}

/* Fade in + scale up — Hero image (replaces motion initial scale:0.8) */
[data-animate="fade-scale"] {
  transform: scale(0.85);
}

/* Fade in from bottom — About section (replaces whileInView y:20) */
[data-animate="fade-up"] {
  transform: translateY(1.5rem);
}

/* Plain fade */
[data-animate="fade"] {
  opacity: 0;
}

/* Staggered children — parent gets .stagger class, children get delays */
.stagger [data-animate]:nth-child(1) { transition-delay: 0ms; }
.stagger [data-animate]:nth-child(2) { transition-delay: 80ms; }
.stagger [data-animate]:nth-child(3) { transition-delay: 160ms; }
.stagger [data-animate]:nth-child(4) { transition-delay: 240ms; }
.stagger [data-animate]:nth-child(5) { transition-delay: 320ms; }
.stagger [data-animate]:nth-child(6) { transition-delay: 400ms; }
.stagger [data-animate]:nth-child(7) { transition-delay: 480ms; }
.stagger [data-animate]:nth-child(8) { transition-delay: 560ms; }
.stagger [data-animate]:nth-child(9) { transition-delay: 640ms; }
.stagger [data-animate]:nth-child(10) { transition-delay: 720ms; }
.stagger [data-animate]:nth-child(11) { transition-delay: 800ms; }
.stagger [data-animate]:nth-child(12) { transition-delay: 880ms; }

/* Triggered state — JS adds this class */
[data-animate].animate-in {
  opacity: 1;
  transform: none;
}

/* Hero: immediate animation on page load (no observer needed) */
.hero-animate-text {
  animation: heroFadeLeft 0.8s ease-out forwards;
}

.hero-animate-image {
  animation: heroFadeScale 1s ease-out 0.2s forwards;
  opacity: 0;
}

@keyframes heroFadeLeft {
  from {
    opacity: 0;
    transform: translateX(-3rem);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes heroFadeScale {
  from {
    opacity: 0;
    transform: scale(0.85);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

/* ------------------------------------------------------------
   2. HOVER EFFECTS
   ------------------------------------------------------------ */

/* Sector cards hover — replaces motion whileHover y:-5 */
.hover-lift {
  transition: transform var(--transition-slow), box-shadow var(--transition-slow);
}
.hover-lift:hover {
  transform: translateY(-5px);
}

/* Tech badge icon hover — replaces motion scale */
.hover-icon {
  transition: transform var(--transition-base), border-color var(--transition-base);
}
.hover-icon:hover {
  border-color: rgba(245, 231, 0, 0.5);
}
.hover-icon:hover .icon {
  transform: scale(1.15);
}
.hover-icon .icon {
  transition: transform var(--transition-base);
}

/* Button scale on click — replaces hover:scale-95 */
.btn-kinetic {
  transition: opacity var(--transition-base), transform var(--transition-base), box-shadow var(--transition-base);
}
.btn-kinetic:hover {
  opacity: 0.9;
}
.btn-kinetic:active {
  transform: scale(0.97);
}

/* Nav link hover */
.nav-link {
  transition: color var(--transition-base);
  position: relative;
}
.nav-link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--color-primary);
  transition: width var(--transition-base);
}
.nav-link:hover {
  color: var(--color-primary);
}

/* Social/footer link hover */
.hover-secondary {
  transition: color var(--transition-base);
}
.hover-secondary:hover {
  color: var(--color-secondary);
}

/* Image grayscale → color on hover — Hero image */
.grayscale-hover {
  filter: grayscale(1);
  transition: filter var(--transition-xslow);
}
.grayscale-hover:hover {
  filter: grayscale(0);
}

/* Sector card background image opacity on hover */
.sector-bg-overlay {
  transition: opacity var(--transition-slow);
  opacity: 0.08;
}
.hover-lift:hover .sector-bg-overlay {
  opacity: 0.18;
}

/* ------------------------------------------------------------
   3. NAVBAR SCROLL TRANSITION
   ------------------------------------------------------------ */
#navbar {
  transition: padding var(--transition-slow), background-color var(--transition-slow),
              backdrop-filter var(--transition-slow);
}

/* ------------------------------------------------------------
   4. FORM STATES
   ------------------------------------------------------------ */
.form-input {
  transition: border-color var(--transition-base);
}

.form-input:focus {
  outline: none;
  border-bottom-color: var(--color-secondary) !important;
}

.form-label {
  transition: color var(--transition-base);
}

.form-input:focus + .form-label,
.form-group:focus-within .form-label {
  color: var(--color-primary);
}

/* Form feedback states */
.form-success {
  animation: feedbackSlideIn 0.4s ease forwards;
}

.form-error-shake {
  animation: errorShake 0.4s ease;
}

@keyframes feedbackSlideIn {
  from { opacity: 0; transform: translateY(-8px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes errorShake {
  0%, 100% { transform: translateX(0); }
  25%       { transform: translateX(-6px); }
  75%       { transform: translateX(6px); }
}

/* ------------------------------------------------------------
   5. MOBILE MENU
   ------------------------------------------------------------ */
#mobile-menu {
  transition: max-height 0.35s ease, opacity 0.35s ease;
  max-height: 0;
  opacity: 0;
  overflow: hidden;
  pointer-events: none;
}

#mobile-menu.open {
  max-height: 500px;
  opacity: 1;
  pointer-events: auto;
}

/* Nasconde il mobile menu su desktop */
@media (min-width: 1024px) {
  #mobile-menu { display: none !important; }
}

/* ------------------------------------------------------------
   5b. LOADING SPINNER (form submit button)
   ------------------------------------------------------------ */
@keyframes spin {
  from { transform: rotate(0deg); }
  to   { transform: rotate(360deg); }
}

/* ------------------------------------------------------------
   6. PWA INSTALL PROMPT
   ------------------------------------------------------------ */
#pwa-install-banner {
  animation: bannerSlideUp 0.5s ease forwards;
}

@keyframes bannerSlideUp {
  from { transform: translateY(100%); opacity: 0; }
  to   { transform: translateY(0); opacity: 1; }
}

/* ------------------------------------------------------------
   7. RADAR SVG ANIMATIONS
   ------------------------------------------------------------ */

/* Sweep line rotates around center (300,300) */
.radar-sweep {
  transform-origin: 300px 300px;
  animation: radarSweep 6s linear infinite;
}

@keyframes radarSweep {
  from { transform: rotate(0deg); }
  to   { transform: rotate(360deg); }
}

/* Ping circle pulses outward from center */
.radar-ping {
  transform-origin: 300px 300px;
  animation: radarPing 2.5s ease-out infinite;
}

@keyframes radarPing {
  0%   { transform: scale(1);  opacity: 0.9; }
  100% { transform: scale(18); opacity: 0; }
}