/**
 * loader.css
 * Full-screen loader per la pagina welcome di C-CyberSafe
 * Design ispirato alla palette e all'estetica del sito
 */

/* ===== Loader Container ===== */
.page-loader {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, #052C55 0%, #021124 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  transition: opacity 0.8s ease-out, visibility 0.8s ease-out;
  opacity: 1;
  visibility: visible;
}

/* Stato nascosto del loader */
.page-loader.hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

/* Previene lo scroll durante il caricamento */
body.loading {
  overflow: hidden;
}

/* ===== Loader Content ===== */
.loader-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 30px;
  max-width: 400px;
  padding: 40px;
}

/* ===== Logo con animazione pulse ===== */
.loader-logo {
  animation: logoFadeIn 1s ease-out;
}

.logo-pulse {
  width: 120px;
  height: auto;
  filter: drop-shadow(0 0 20px rgba(0, 184, 204, 0.4));
  animation: logoPulse 2s ease-in-out infinite;
}

@keyframes logoPulse {
  0%, 100% {
    transform: scale(1);
    filter: drop-shadow(0 0 20px rgba(0, 184, 204, 0.4));
  }
  50% {
    transform: scale(1.08);
    filter: drop-shadow(0 0 30px rgba(0, 184, 204, 0.7));
  }
}

@keyframes logoFadeIn {
  0% {
    opacity: 0;
    transform: translateY(-20px);
  }
  100% {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ===== Spinner con 3 anelli concentrici ===== */
.loader-spinner {
  position: relative;
  width: 100px;
  height: 100px;
  animation: spinnerFadeIn 1.2s ease-out;
}

.spinner-ring {
  position: absolute;
  border: 3px solid transparent;
  border-radius: 50%;
  animation: spin 2s linear infinite;
}

.spinner-ring:nth-child(1) {
  top: 0;
  left: 0;
  width: 100px;
  height: 100px;
  border-top-color: var(--ccy-primary, #00b8cc);
  animation-delay: 0s;
}

.spinner-ring:nth-child(2) {
  top: 10px;
  left: 10px;
  width: 80px;
  height: 80px;
  border-top-color: var(--ccy-accent, #db1952);
  animation-delay: -0.3s;
}

.spinner-ring:nth-child(3) {
  top: 20px;
  left: 20px;
  width: 60px;
  height: 60px;
  border-top-color: var(--ccy-kicker, #ff695f);
  animation-delay: -0.6s;
}

@keyframes spin {
  0% {
    transform: rotate(0deg);
  }
  100% {
    transform: rotate(360deg);
  }
}

@keyframes spinnerFadeIn {
  0% {
    opacity: 0;
    transform: scale(0.8);
  }
  100% {
    opacity: 1;
    transform: scale(1);
  }
}

/* ===== Testo di caricamento ===== */
.loader-text {
  display: flex;
  align-items: baseline;
  gap: 4px;
  font-family: var(--font_family, 'Smooch Sans', sans-serif);
  color: var(--ccy-hero-bg, #dde0e6);
  font-size: 18px;
  font-weight: 700;
  letter-spacing: 0.5px;
  animation: textFadeIn 1.4s ease-out;
}

.loading-dots {
  display: inline-flex;
  gap: 2px;
}

.loading-dots .dot {
  animation: dotPulse 1.4s ease-in-out infinite;
  opacity: 0;
}

.loading-dots .dot:nth-child(1) {
  animation-delay: 0s;
}

.loading-dots .dot:nth-child(2) {
  animation-delay: 0.2s;
}

.loading-dots .dot:nth-child(3) {
  animation-delay: 0.4s;
}

@keyframes dotPulse {
  0%, 20%, 100% {
    opacity: 0;
  }
  50% {
    opacity: 1;
  }
}

@keyframes textFadeIn {
  0% {
    opacity: 0;
    transform: translateY(10px);
  }
  100% {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ===== Barra di progressione ===== */
.progress-bar {
  width: 250px;
  height: 4px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 10px;
  overflow: hidden;
  animation: progressBarFadeIn 1.6s ease-out;
  box-shadow: 0 0 10px rgba(0, 184, 204, 0.2);
}

.progress-fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--ccy-primary, #00b8cc) 0%, var(--ccy-accent, #db1952) 100%);
  border-radius: 10px;
  transition: width 0.3s ease-out;
  box-shadow: 0 0 15px rgba(0, 184, 204, 0.6);
  animation: progressShimmer 2s ease-in-out infinite;
}

@keyframes progressBarFadeIn {
  0% {
    opacity: 0;
    transform: scaleX(0.8);
  }
  100% {
    opacity: 1;
    transform: scaleX(1);
  }
}

@keyframes progressShimmer {
  0%, 100% {
    box-shadow: 0 0 15px rgba(0, 184, 204, 0.6);
  }
  50% {
    box-shadow: 0 0 25px rgba(0, 184, 204, 0.9);
  }
}

/* ===== Responsive ===== */
@media (max-width: 768px) {
  .loader-content {
    padding: 20px;
    gap: 25px;
  }

  .logo-pulse {
    width: 90px;
  }

  .loader-spinner {
    width: 80px;
    height: 80px;
  }

  .spinner-ring:nth-child(1) {
    width: 80px;
    height: 80px;
  }

  .spinner-ring:nth-child(2) {
    width: 64px;
    height: 64px;
  }

  .spinner-ring:nth-child(3) {
    width: 48px;
    height: 48px;
  }

  .loader-text {
    font-size: 16px;
  }

  .progress-bar {
    width: 200px;
  }
}

/* ===== Accessibilità: Reduced Motion ===== */
@media (prefers-reduced-motion: reduce) {
  .logo-pulse,
  .spinner-ring,
  .loading-dots .dot {
    animation: none;
  }

  .page-loader {
    transition: opacity 0.3s ease-out;
  }

  .progress-fill {
    animation: none;
  }
}