/* ==========================================================================
   Stefano Poggioli - Consulente Digital Marketing
   Custom Stylesheet (Apple-Style Light Glassmorphism)
   ========================================================================== */

:root {
  --ap-blue: #3187c6;
  --ap-blue-hover: #216ba2;
  --ap-blue-light: #eaf3fb;
  --ap-blue-rgb: 49, 135, 198;
  --bs-primary: #3187c6;
  --bs-primary-rgb: 49, 135, 198;  
  --ap-white: #ffffff;
  --ap-gray-100: #f8fafc;
  --ap-gray-200: #f1f5f9;
  --ap-gray-300: #e2e8f0;
  --ap-gray-400: #cbd5e1;
  --ap-gray-600: #475569;
  --ap-gray-700: #334155;
  --ap-gray-800: #1e293b;
  --ap-gray-900: #0f172a;
  --ap-gray-900-rgb: 15, 23, 42;
  
  /* Glassmorphism Variables */
  --glass-bg: rgba(255, 255, 255, 0.72);
  --glass-bg-hover: rgba(255, 255, 255, 0.88);
  --glass-border: 1px solid rgba(255, 255, 255, 0.8);
  --glass-border-subtle: 1px solid rgba(226, 232, 240, 0.6);
  --glass-blur: blur(18px) saturate(180%);
  --glass-shadow: 0 10px 32px rgba(15, 23, 42, 0.05), inset 0 1px 1px rgba(255, 255, 255, 0.9);
  --glass-shadow-hover: 0 20px 48px rgba(49, 135, 198, 0.14), inset 0 1px 1px rgba(255, 255, 255, 1);

  --font-family-base: 'Inter', ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --shadow-sm: 0 2px 10px rgba(15, 23, 42, 0.04);
  --shadow-md: 0 12px 30px rgba(15, 23, 42, 0.07);
  --shadow-lg: 0 24px 50px rgba(15, 23, 42, 0.12);
  --transition-fast: all 0.22s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-normal: all 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

/* --- Base Setup --- */
* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

:target {
  scroll-margin-top: 100px;
}

body {
  margin: 0;
  font-family: var(--font-family-base);
  color: var(--ap-gray-700);
  background: 
    radial-gradient(circle at 10% 15%, rgba(49, 135, 198, 0.09) 0%, transparent 40%),
    radial-gradient(circle at 90% 65%, rgba(49, 135, 198, 0.06) 0%, transparent 45%),
    radial-gradient(circle at 50% 90%, rgba(241, 245, 249, 0.8) 0%, transparent 50%),
    #f8fafc;
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 {
  color: var(--ap-gray-900);
  font-weight: 700;
  letter-spacing: -0.02em;
}

a {
  color: var(--ap-blue);
  text-decoration: none;
  transition: var(--transition-fast);
}

a:hover {
  color: var(--ap-blue-hover);
}

.btn-group-lg>.btn, .btn-lg {
    --bs-btn-font-size: 1.1rem !important;
}



/* --- Preloader (White Glass Background + Circular Progress + Percentage) --- */
.sp-preloader {
  position: fixed;
  inset: 0;
  z-index: 99999;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  transition: opacity 0.5s ease, visibility 0.5s ease;
}

.sp-preloader.fade-out {
  opacity: 0;
  visibility: hidden;
}

.preloader-circle-wrapper {
  position: relative;
  width: 140px;
  height: 140px;
  display: flex;
  justify-content: center;
  align-items: center;
}

.progress-ring {
  transform: rotate(-90deg);
}

.progress-ring__circle-bg {
  stroke: var(--ap-gray-200);
}

.progress-ring__circle {
  stroke: var(--ap-blue);
  stroke-linecap: round;
  stroke-dasharray: 326.726;
  stroke-dashoffset: 326.726;
  transition: stroke-dashoffset 0.1s linear;
}

.preloader-text {
  position: absolute;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

#preloader-percentage {
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--ap-gray-900);
  line-height: 1;
}

.preloader-name {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--ap-gray-600);
  margin-top: 4px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* --- Top Bar --- */
.top-bar {
  background: rgba(248, 250, 252, 0.65);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(226, 232, 240, 0.7);
  font-size: 0.85rem;
  color: var(--ap-gray-600);
  padding: 8px 0;
}

.top-bar a {
  color: var(--ap-gray-700);
}

.top-bar a:hover {
  color: var(--ap-blue);
}

.social-links-top a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.8);
  border: 1px solid rgba(226, 232, 240, 0.8);
  color: var(--ap-gray-700);
  backdrop-filter: blur(8px);
  transition: var(--transition-fast);
}

.social-links-top a:hover {
  background: var(--ap-blue);
  color: var(--ap-white);
  border-color: var(--ap-blue);
  transform: translateY(-2px);
}

/* --- Navigation Bar (Apple Light Glass) --- */
.navbar-sp {
  background-color: rgba(255, 255, 255, 0.76);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid rgba(255, 255, 255, 0.7);
  box-shadow: 0 4px 20px rgba(15, 23, 42, 0.03);
  padding: 14px 0;
  transition: var(--transition-fast);
}

.navbar-sp.scrolled {
  background-color: rgba(255, 255, 255, 0.85);
  box-shadow: 0 10px 30px rgba(15, 23, 42, 0.07);
  border-bottom: 1px solid rgba(226, 232, 240, 0.8);
  padding: 10px 0;
}

.brand-logo {
  font-weight: 800;
  font-size: 1.25rem;
  color: var(--ap-gray-900);
  display: flex;
  align-items: center;
  gap: 10px;
}

.brand-badge {
  width: 38px;
  height: 38px;
  background: linear-gradient(135deg, var(--ap-blue), var(--ap-blue-hover));
  color: var(--ap-white);
  font-weight: 800;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.95rem;
  box-shadow: 0 6px 16px rgba(49, 135, 198, 0.3), inset 0 1px 0 rgba(255, 255, 255, 0.3);
}

.nav-link-custom {
  color: var(--ap-gray-800);
  font-weight: 500;
  font-size: 0.95rem;
  padding: 8px 14px !important;
  border-radius: 10px;
  transition: var(--transition-fast);
}

.nav-link-custom:hover,
.nav-link-custom.active {
  color: var(--ap-blue);
  background-color: rgba(49, 135, 198, 0.1);
  backdrop-filter: blur(8px);
}

/* Custom Mega Dropdown (Apple Frosted Glass) */
.dropdown-menu-custom {
  border: var(--glass-border);
  border-radius: 22px;
  box-shadow: 0 20px 50px rgba(15, 23, 42, 0.1), inset 0 1px 1px rgba(255, 255, 255, 1);
  padding: 18px;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(24px) saturate(190%);
  -webkit-backdrop-filter: blur(24px) saturate(190%);
  min-width: 280px;
}

.dropdown-menu-mega {
  width: 550px;
}

@media (max-width: 991px) {
  .dropdown-menu-mega {
    width: 100%;
  }
}

.dropdown-header-custom {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 700;
  color: var(--ap-blue);
  padding: 8px 12px 4px;
}

.dropdown-item-custom {
  display: block;
  padding: 10px 14px;
  border-radius: 12px;
  transition: var(--transition-fast);
}

.dropdown-item-custom:hover {
  background-color: rgba(49, 135, 198, 0.1);
}

.dropdown-item-custom .item-title {
  font-weight: 600;
  color: var(--ap-gray-900);
  font-size: 0.9rem;
}

.dropdown-item-custom .item-desc {
  font-size: 0.78rem;
  color: var(--ap-gray-600);
  margin-top: 2px;
}

/* --- Buttons --- */
.btn-ap-primary {
  background: linear-gradient(135deg, var(--ap-blue) 0%, var(--ap-blue-hover) 100%);
  color: var(--ap-white);
  font-weight: 600;
  padding: 10px 24px;
  border-radius: 50px;
  border: none;
  box-shadow: 0 6px 20px rgba(49, 135, 198, 0.35), inset 0 1px 0 rgba(255, 255, 255, 0.3);
  transition: var(--transition-fast);
}

.btn-ap-primary:hover {
  color: var(--ap-white);
  transform: translateY(-2px);
  box-shadow: 0 10px 28px rgba(49, 135, 198, 0.45), inset 0 1px 0 rgba(255, 255, 255, 0.4);
}

.btn-ap-outline {
  background: rgba(255, 255, 255, 0.6);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  color: var(--ap-gray-800);
  border: 1px solid rgba(203, 213, 225, 0.8);
  font-weight: 600;
  padding: 10px 24px;
  border-radius: 50px;
  box-shadow: inset 0 1px 1px rgba(255, 255, 255, 0.9);
  transition: var(--transition-fast);
}

.btn-ap-outline:hover {
  background: rgba(255, 255, 255, 0.9);
  color: var(--ap-blue);
  border-color: var(--ap-blue);
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(49, 135, 198, 0.15), inset 0 1px 1px rgba(255, 255, 255, 1);
}

/* --- Cards & Containers (Apple Light Glassmorphism) --- */
.card-light {
  background-color: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: var(--glass-border);
  border-radius: 24px;
  padding: 28px;
  box-shadow: var(--glass-shadow);
  transition: var(--transition-normal);
  height: auto;
}

.card-light.h-100 {
  height: 100% !important;
}

.card-light:hover {
  background-color: var(--glass-bg-hover);
  transform: translateY(-5px);
  box-shadow: var(--glass-shadow-hover);
  border-color: rgba(49, 135, 198, 0.35);
}

.card-highlight {
  background: linear-gradient(135deg, rgba(234, 243, 251, 0.78) 0%, rgba(255, 255, 255, 0.88) 100%);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid rgba(49, 135, 198, 0.25);
  box-shadow: 0 12px 36px rgba(49, 135, 198, 0.08), inset 0 1px 1px rgba(255, 255, 255, 0.9);
}

/* --- HERO Section --- */
.hero-section {
  position: relative;
  padding: 70px 0 90px;
  background: 
    radial-gradient(circle at 90% 10%, rgba(49, 135, 198, 0.14) 0%, transparent 45%),
    radial-gradient(circle at 10% 90%, rgba(241, 245, 249, 0.9) 0%, transparent 50%);
  overflow: hidden;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 18px;
  border-radius: 50px;
  background: rgba(234, 243, 251, 0.75);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  color: var(--ap-blue);
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 20px;
  border: 1px solid rgba(49, 135, 198, 0.25);
  box-shadow: inset 0 1px 1px rgba(255, 255, 255, 0.8);
}

.hero-title {
  font-size: 3rem;
  line-height: 1.15;
  margin-bottom: 20px;
}

@media (max-width: 768px) {
  .hero-title {
    font-size: 2.2rem;
  }
}

.text-gradient {
  background: linear-gradient(135deg, var(--ap-blue) 0%, var(--ap-blue-hover) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-image-wrapper {
  position: relative;
  display: inline-block;
  width: 100%;
  max-width: 440px;
}

.hero-img-box {
  position: relative;
  border-radius: 28px;
  overflow: hidden;
  box-shadow: 0 24px 60px rgba(15, 23, 42, 0.14);
  border: 6px solid rgba(255, 255, 255, 0.65);
  backdrop-filter: blur(12px);
  background-color: #dbeafe;
}

.hero-img-box img {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
}

.floating-badge {
  position: absolute;
  background: rgba(255, 255, 255, 0.78);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: var(--glass-border);
  padding: 12px 20px;
  border-radius: 20px;
  box-shadow: 0 14px 32px rgba(15, 23, 42, 0.08), inset 0 1px 1px rgba(255, 255, 255, 0.9);
  display: flex;
  align-items: center;
  gap: 12px;
  z-index: 5;
  animation: floatAnim 4s ease-in-out infinite;
}

.badge-top-left {
  top: 25px;
  left: -20px;
}

.badge-bottom-right {
  bottom: 25px;
  right: -20px;
  animation-delay: -2s;
}

@keyframes floatAnim {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

@media (max-width: 576px) {
  .floating-badge {
    position: absolute;
    padding: 8px 14px;
    border-radius: 14px;
    gap: 8px;
  }
  .badge-top-left {
    top: 12px;
    left: -8px;
  }
  .badge-bottom-right {
    bottom: 12px;
    right: -8px;
  }
  .badge-icon {
    width: 34px;
    height: 34px;
    font-size: 0.95rem;
    border-radius: 10px;
  }
}

.badge-icon {
  width: 44px;
  height: 44px;
  border-radius: 14px;
  background: rgba(234, 243, 251, 0.85);
  backdrop-filter: blur(8px);
  color: var(--ap-blue);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  box-shadow: inset 0 1px 1px rgba(255, 255, 255, 0.8);
}

/* --- Section Title --- */
.section-tag {
  color: var(--ap-blue);
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 8px;
  display: block;
}

.section-title {
  font-size: 2.25rem;
  margin-bottom: 16px;
}

@media (max-width: 768px) {
  .section-title {
    font-size: 1.75rem;
  }
}

/* --- Features & Stats (Glass Box) --- */
.stat-box {
  text-align: center;
  padding: 24px 16px;
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.65);
  backdrop-filter: blur(14px) saturate(160%);
  -webkit-backdrop-filter: blur(14px) saturate(160%);
  border: var(--glass-border);
  box-shadow: 0 6px 20px rgba(15, 23, 42, 0.04), inset 0 1px 1px rgba(255, 255, 255, 0.9);
}

.stat-number {
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--ap-blue);
  line-height: 1;
  margin-bottom: 6px;
}

.stat-label {
  font-size: 0.85rem;
  color: var(--ap-gray-600);
  font-weight: 600;
}

/* --- Experience Timeline (Chi Sono page) --- */
.timeline-list {
  position: relative;
  padding-left: 30px;
}

.timeline-list::before {
  content: '';
  position: absolute;
  left: 9px;
  top: 8px;
  bottom: 8px;
  width: 2px;
  background-color: var(--ap-gray-300);
}

.timeline-item {
  position: relative;
  margin-bottom: 36px;
}

.timeline-item:last-child {
  margin-bottom: 0;
}

.timeline-dot {
  position: absolute;
  left: -30px;
  top: 4px;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--ap-white);
  border: 4px solid var(--ap-blue);
  box-shadow: 0 0 0 4px var(--ap-blue-light);
}

.timeline-date {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 20px;
  background: rgba(234, 243, 251, 0.8);
  backdrop-filter: blur(8px);
  color: var(--ap-blue);
  font-weight: 600;
  font-size: 0.8rem;
  margin-bottom: 8px;
  border: 1px solid rgba(49, 135, 198, 0.2);
}

.timeline-role {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--ap-gray-900);
  margin-bottom: 2px;
}

.timeline-company {
  font-size: 0.95rem;
  color: var(--ap-gray-600);
  font-weight: 600;
  margin-bottom: 10px;
}

/* --- Skill Pills & Badges (Glass Pill) --- */
.skill-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 16px;
  border-radius: 30px;
  background: rgba(255, 255, 255, 0.72);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid rgba(226, 232, 240, 0.8);
  font-size: 0.85rem;
  color: var(--ap-gray-800);
  font-weight: 500;
  margin-right: 6px;
  margin-bottom: 10px;
  box-shadow: 0 2px 6px rgba(15, 23, 42, 0.03), inset 0 1px 0 rgba(255, 255, 255, 0.8);
  transition: var(--transition-fast);
}

.skill-badge:hover {
  background-color: var(--ap-blue-light);
  color: var(--ap-blue);
  border-color: rgba(49, 135, 198, 0.35);
  transform: translateY(-2px);
}

/* --- Agency ArtProject.it Highlight Box (Dark Frosted Glass) --- */
.agency-box {
  background: 
    linear-gradient(135deg, rgba(15, 23, 42, 0.92) 0%, rgba(30, 41, 59, 0.88) 100%),
    url('../images/agency-bg.webp') center/cover no-repeat;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.15);
  color: var(--ap-white);
  border-radius: 28px;
  padding: 62px;
  position: relative;
  overflow: hidden;
  box-shadow: 0 20px 50px rgba(15, 23, 42, 0.2), inset 0 1px 0 rgba(255, 255, 255, 0.15);
}

.agency-box h3, .agency-box p {
  color: var(--ap-white);
}

.agency-badge {
  background: rgba(49, 135, 198, 0.25);
  color: #60a5fa;
  border: 1px solid rgba(96, 165, 250, 0.35);
  backdrop-filter: blur(8px);
  padding: 4px 14px;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* --- Accordion FAQ (Glass Accordion) --- */
.accordion-custom .accordion-item {
  background: rgba(255, 255, 255, 0.72);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: var(--glass-border);
  border-radius: 20px !important;
  margin-bottom: 14px;
  overflow: hidden;
  box-shadow: var(--glass-shadow);
  transition: var(--transition-normal);
}

.accordion-custom .accordion-button {
  font-weight: 600;
  color: var(--ap-gray-900);
  background: transparent;
  padding: 20px 26px;
  box-shadow: none;
}

.accordion-custom .accordion-button:not(.collapsed) {
  color: var(--ap-blue);
  background: rgba(234, 243, 251, 0.75);
  backdrop-filter: blur(12px);
}

.accordion-custom .accordion-body {
  padding: 20px 26px;
  color: var(--ap-gray-700);
}

/* --- Form Controls (Glass Input) --- */
.form-control {
  background: rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid rgba(226, 232, 240, 0.9);
  border-radius: 14px;
  padding: 12px 16px;
  transition: var(--transition-fast);
}

.form-control:focus {
  background: #ffffff;
  border-color: var(--ap-blue);
  box-shadow: 0 0 0 4px rgba(49, 135, 198, 0.15);
}

/* --- Footer --- */
.footer-sp {
  background-color: var(--ap-gray-900);
  color: var(--ap-gray-400);
  padding: 70px 0 30px;
  border-top: 1px solid var(--ap-gray-800);
}

.footer-sp h5 {
  color: var(--ap-white);
  font-size: 1.1rem;
  margin-bottom: 20px;
}

.footer-sp a {
  color: var(--ap-gray-400);
}

.footer-sp a:hover {
  color: var(--ap-blue-light);
}

/* Footer Social Icons High Contrast Glass Buttons */
.footer-sp .social-links-top a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: #ffffff !important;
  font-size: 0.95rem;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  transition: var(--transition-fast);
}

.footer-sp .social-links-top a:hover {
  background: var(--ap-blue);
  border-color: var(--ap-blue);
  color: #ffffff !important;
  transform: translateY(-3px);
  box-shadow: 0 6px 18px rgba(49, 135, 198, 0.45);
}

.footer-bottom {
  border-top: 1px solid var(--ap-gray-800);
  margin-top: 50px;
  padding-top: 25px;
  font-size: 0.85rem;
}

/* --- Back to Top Button (Circular 4px Progress Border + Dark Gray Center + White Arrow) --- */
.back-to-top {
  position: fixed;
  bottom: 40px;
  right: 40px;
  width: 56px;
  height: 56px;
  z-index: 998;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px) scale(0.9);
  transition: opacity 0.3s ease, visibility 0.3s ease, transform 0.3s ease;
  cursor: pointer;
  text-decoration: none;
}

.back-to-top.show {
  opacity: 1;
  visibility: visible;
  transform: translateY(0) scale(1);
}

.back-to-top:hover {
  transform: translateY(-4px) scale(1.06);
}

.btt-svg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  transform: rotate(-90deg);
  pointer-events: none;
}

.btt-circle-bg {
  fill: var(--ap-gray-800); /* Dark gray circle #1e293b */
 /* filter: drop-shadow(0 4px 4px rgba(15, 23, 42, 0.25));*/
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
}

.btt-circle-progress {
  fill: none;
  stroke: #3187c6; /* 4px blue border #3187c6 */
  stroke-width: 4;
  stroke-linecap: round;
  stroke-dasharray: 150.796;
  stroke-dashoffset: 150.796;
  transition: stroke-dashoffset 0.08s linear;
}

.btt-icon {
  position: relative;
  z-index: 2;
  color: #ffffff; /* White arrow */
  font-size: 1.15rem;
  transition: transform 0.2s ease;
}

.back-to-top:hover .btt-icon {
  transform: translateY(-2px);
}