/* ======================================
   CrescereFacile.it — Design System
   Famiglia & Genitori • 2026
   ====================================== */

/* ---------- Google Fonts ---------- */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=Playfair+Display:wght@600;700;800&display=swap');

/* ---------- CSS Variables ---------- */
:root {
  /* Palette — warm, nurturing, family-oriented */
  --clr-primary: #E8634A;       /* Warm coral */
  --clr-primary-dark: #D14E36;
  --clr-primary-light: #F9A68C;
  --clr-secondary: #7C6AE8;     /* Soft lavender */
  --clr-secondary-light: #B5AAFF;
  --clr-accent: #3DC2A0;        /* Fresh mint */
  --clr-accent-light: #7FE0C6;

  /* Gradients */
  --grad-hero: linear-gradient(135deg, #E8634A 0%, #F9A68C 40%, #B5AAFF 100%);
  --grad-card: linear-gradient(145deg, rgba(255,255,255,0.85), rgba(255,255,255,0.55));
  --grad-warm: linear-gradient(135deg, #FFF5F0 0%, #F3EEFF 100%);
  --grad-cta: linear-gradient(135deg, #E8634A, #7C6AE8);

  /* Neutrals */
  --clr-bg: #FAFAFA;
  --clr-surface: #FFFFFF;
  --clr-text: #2D2A3E;
  --clr-text-light: #6B6580;
  --clr-text-muted: #9B95AC;
  --clr-border: #E8E4F0;
  --clr-divider: #F0ECF8;

  /* Shadows */
  --shadow-sm: 0 2px 8px rgba(45,42,62,0.06);
  --shadow-md: 0 8px 24px rgba(45,42,62,0.08);
  --shadow-lg: 0 16px 48px rgba(45,42,62,0.12);
  --shadow-glow: 0 4px 20px rgba(232,99,74,0.25);
  --shadow-card: 0 8px 32px rgba(45,42,62,0.08), 0 2px 8px rgba(45,42,62,0.04);

  /* Typography */
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-display: 'Playfair Display', Georgia, serif;

  /* Spacing */
  --sp-1: 0.25rem;
  --sp-2: 0.5rem;
  --sp-3: 0.75rem;
  --sp-4: 1rem;
  --sp-5: 1.25rem;
  --sp-6: 1.5rem;
  --sp-8: 2rem;
  --sp-10: 2.5rem;
  --sp-12: 3rem;
  --sp-16: 4rem;
  --sp-20: 5rem;
  --sp-24: 6rem;

  /* Radius */
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --radius-full: 9999px;

  /* Transitions */
  --ease-out: cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
  --duration-fast: 0.2s;
  --duration-normal: 0.35s;
  --duration-slow: 0.5s;
}

/* ---------- Reset ---------- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  color: var(--clr-text);
  background: var(--clr-bg);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: var(--clr-primary);
  text-decoration: none;
  transition: color var(--duration-fast) var(--ease-out);
}

a:hover {
  color: var(--clr-primary-dark);
}

h1, h2, h3, h4, h5, h6 {
  line-height: 1.25;
  font-weight: 700;
  color: var(--clr-text);
}

h1 { font-family: var(--font-display); font-size: clamp(2.2rem, 5vw, 3.5rem); font-weight: 800; }
h2 { font-size: clamp(1.6rem, 3.5vw, 2.4rem); }
h3 { font-size: clamp(1.2rem, 2.5vw, 1.6rem); }

ul, ol { list-style-position: inside; }

/* ---------- Layout ---------- */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--sp-6);
}

.section {
  padding: var(--sp-20) 0;
}

/* ---------- Top Banner (AdSense-ready) ---------- */
.top-banner {
  background: var(--grad-warm);
  text-align: center;
  padding: var(--sp-2) var(--sp-4);
  font-size: 0.8rem;
  color: var(--clr-text-muted);
  border-bottom: 1px solid var(--clr-border);
}

/* ---------- Navigation ---------- */
.navbar {
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(232,228,240,0.6);
  position: sticky;
  top: 0;
  z-index: 1000;
  transition: box-shadow var(--duration-normal) var(--ease-out);
}

.navbar.scrolled {
  box-shadow: var(--shadow-md);
}

.navbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 70px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  text-decoration: none;
  color: var(--clr-text);
}

.nav-logo-icon {
  width: 42px;
  height: 42px;
  background: var(--grad-cta);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  color: white;
  box-shadow: var(--shadow-glow);
}

.nav-logo-text {
  font-weight: 800;
  font-size: 1.25rem;
  letter-spacing: -0.02em;
}

.nav-logo-text span {
  color: var(--clr-primary);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--sp-1);
  list-style: none;
}

.nav-links a {
  display: block;
  padding: var(--sp-2) var(--sp-4);
  border-radius: var(--radius-sm);
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--clr-text-light);
  transition: all var(--duration-fast) var(--ease-out);
  white-space: nowrap;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--clr-primary);
  background: rgba(232,99,74,0.08);
}

/* Mobile menu button */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--sp-2);
  border-radius: var(--radius-sm);
  color: var(--clr-text);
  font-size: 1.5rem;
  transition: background var(--duration-fast);
}

.nav-toggle:hover {
  background: rgba(232,99,74,0.08);
}

/* ---------- Hero Section ---------- */
.hero {
  background: var(--grad-hero);
  padding: var(--sp-24) 0 var(--sp-20);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -60%;
  right: -20%;
  width: 700px;
  height: 700px;
  background: radial-gradient(circle, rgba(255,255,255,0.15) 0%, transparent 70%);
  border-radius: 50%;
  animation: float 8s ease-in-out infinite;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -40%;
  left: -15%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(124,106,232,0.2) 0%, transparent 70%);
  border-radius: 50%;
  animation: float 10s ease-in-out infinite reverse;
}

@keyframes float {
  0%, 100% { transform: translateY(0) rotate(0deg); }
  50% { transform: translateY(-30px) rotate(3deg); }
}

.hero .container {
  position: relative;
  z-index: 1;
  text-align: center;
}

.hero h1 {
  color: white;
  margin-bottom: var(--sp-6);
  text-shadow: 0 2px 12px rgba(0,0,0,0.15);
}

.hero-subtitle {
  font-size: clamp(1.05rem, 2vw, 1.3rem);
  color: rgba(255,255,255,0.92);
  max-width: 650px;
  margin: 0 auto var(--sp-10);
  font-weight: 400;
  line-height: 1.8;
}

.hero-badges {
  display: flex;
  justify-content: center;
  gap: var(--sp-4);
  flex-wrap: wrap;
  margin-bottom: var(--sp-10);
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  background: rgba(255,255,255,0.2);
  backdrop-filter: blur(10px);
  padding: var(--sp-2) var(--sp-5);
  border-radius: var(--radius-full);
  color: white;
  font-size: 0.9rem;
  font-weight: 500;
  border: 1px solid rgba(255,255,255,0.25);
}

/* ---------- Cards Grid ---------- */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--sp-8);
}

.card {
  background: var(--grad-card);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(255,255,255,0.6);
  border-radius: var(--radius-lg);
  padding: var(--sp-10) var(--sp-8);
  box-shadow: var(--shadow-card);
  transition: all var(--duration-normal) var(--ease-spring);
  text-decoration: none;
  color: var(--clr-text);
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--grad-cta);
  opacity: 0;
  transition: opacity var(--duration-normal) var(--ease-out);
}

.card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
}

.card:hover::before {
  opacity: 1;
}

.card-icon {
  width: 64px;
  height: 64px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
  margin-bottom: var(--sp-6);
  flex-shrink: 0;
}

.card-icon.coral { background: linear-gradient(135deg, #FFE8E2, #FFD0C5); }
.card-icon.lavender { background: linear-gradient(135deg, #EDE8FF, #D8D0FF); }
.card-icon.mint { background: linear-gradient(135deg, #E0F8F0, #C0F0E0); }
.card-icon.gold { background: linear-gradient(135deg, #FFF3DB, #FFE5B0); }

.card h3 {
  margin-bottom: var(--sp-3);
  font-size: 1.25rem;
}

.card p {
  color: var(--clr-text-light);
  font-size: 0.95rem;
  line-height: 1.7;
  flex-grow: 1;
}

.card-link {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  color: var(--clr-primary);
  font-weight: 600;
  font-size: 0.92rem;
  margin-top: var(--sp-6);
  transition: gap var(--duration-fast) var(--ease-out);
}

.card:hover .card-link {
  gap: var(--sp-3);
}

/* ---------- Content Page Layout ---------- */
.page-header {
  background: var(--grad-warm);
  padding: var(--sp-16) 0 var(--sp-12);
  border-bottom: 1px solid var(--clr-border);
}

.page-header .breadcrumb {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
  font-size: 0.85rem;
  color: var(--clr-text-muted);
  margin-bottom: var(--sp-6);
  list-style: none;
  flex-wrap: wrap;
}

.page-header .breadcrumb a {
  color: var(--clr-text-muted);
}

.page-header .breadcrumb a:hover {
  color: var(--clr-primary);
}

.page-header h1 {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  margin-bottom: var(--sp-4);
}

.page-header .lead {
  font-size: 1.1rem;
  color: var(--clr-text-light);
  max-width: 700px;
  line-height: 1.8;
}

.page-content {
  padding: var(--sp-16) 0;
}

.content-layout {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: var(--sp-12);
  align-items: start;
}

.content-main {
  min-width: 0;
}

/* ---------- Article styles ---------- */
.article h2 {
  margin-top: var(--sp-12);
  margin-bottom: var(--sp-6);
  padding-bottom: var(--sp-3);
  border-bottom: 2px solid var(--clr-divider);
}

.article h2:first-child {
  margin-top: 0;
}

.article h3 {
  margin-top: var(--sp-8);
  margin-bottom: var(--sp-4);
  color: var(--clr-secondary);
}

.article p {
  margin-bottom: var(--sp-5);
  font-size: 1.02rem;
}

.article ul, .article ol {
  margin-bottom: var(--sp-6);
  padding-left: var(--sp-6);
  list-style-position: outside;
}

.article li {
  margin-bottom: var(--sp-3);
  font-size: 1rem;
}

.article li::marker {
  color: var(--clr-primary);
}

/* Info boxes */
.info-box {
  padding: var(--sp-6) var(--sp-8);
  border-radius: var(--radius-md);
  margin: var(--sp-8) 0;
  border-left: 4px solid;
  position: relative;
}

.info-box.tip {
  background: #F0FFF8;
  border-color: var(--clr-accent);
}

.info-box.warning {
  background: #FFF8F0;
  border-color: #F5A623;
}

.info-box.important {
  background: #F0F0FF;
  border-color: var(--clr-secondary);
}

.info-box.bonus {
  background: linear-gradient(135deg, #FFF5F0, #FFF0E8);
  border-color: var(--clr-primary);
}

.info-box-title {
  font-weight: 700;
  font-size: 0.92rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--sp-2);
}

.info-box.tip .info-box-title { color: var(--clr-accent); }
.info-box.warning .info-box-title { color: #F5A623; }
.info-box.important .info-box-title { color: var(--clr-secondary); }
.info-box.bonus .info-box-title { color: var(--clr-primary); }

/* Data tables */
.data-table-wrapper {
  overflow-x: auto;
  margin: var(--sp-6) 0;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.95rem;
}

.data-table th {
  background: var(--clr-text);
  color: white;
  padding: var(--sp-4) var(--sp-5);
  text-align: left;
  font-weight: 600;
  font-size: 0.88rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.data-table td {
  padding: var(--sp-4) var(--sp-5);
  border-bottom: 1px solid var(--clr-divider);
}

.data-table tbody tr:hover {
  background: rgba(232,99,74,0.04);
}

.data-table tbody tr:last-child td {
  border-bottom: none;
}

/* ---------- Sidebar ---------- */
.sidebar {
  position: sticky;
  top: 90px;
}

.sidebar-card {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-lg);
  padding: var(--sp-8);
  margin-bottom: var(--sp-6);
  box-shadow: var(--shadow-sm);
}

.sidebar-card h4 {
  font-size: 1rem;
  margin-bottom: var(--sp-5);
  padding-bottom: var(--sp-3);
  border-bottom: 2px solid var(--clr-primary-light);
}

.sidebar-links {
  list-style: none;
  padding: 0;
}

.sidebar-links li {
  margin-bottom: var(--sp-1);
}

.sidebar-links a {
  display: block;
  padding: var(--sp-3) var(--sp-4);
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  color: var(--clr-text-light);
  transition: all var(--duration-fast);
}

.sidebar-links a:hover {
  background: rgba(232,99,74,0.08);
  color: var(--clr-primary);
}

/* ---------- Calculator Tool ---------- */
.calc-wrapper {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-xl);
  padding: var(--sp-10);
  box-shadow: var(--shadow-md);
  margin: var(--sp-8) 0;
}

.calc-form {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--sp-6);
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--sp-2);
}

.form-group.full-width {
  grid-column: 1 / -1;
}

.form-group label {
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--clr-text);
}

.form-group small {
  font-size: 0.8rem;
  color: var(--clr-text-muted);
}

.form-input,
.form-select {
  padding: var(--sp-4) var(--sp-5);
  border: 2px solid var(--clr-border);
  border-radius: var(--radius-md);
  font-size: 1rem;
  font-family: var(--font-body);
  color: var(--clr-text);
  background: var(--clr-surface);
  transition: border-color var(--duration-fast);
  -webkit-appearance: none;
}

.form-input:focus,
.form-select:focus {
  outline: none;
  border-color: var(--clr-primary);
  box-shadow: 0 0 0 3px rgba(232,99,74,0.15);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--sp-3);
  padding: var(--sp-4) var(--sp-8);
  border: none;
  border-radius: var(--radius-md);
  font-size: 1rem;
  font-weight: 600;
  font-family: var(--font-body);
  cursor: pointer;
  transition: all var(--duration-normal) var(--ease-spring);
  text-decoration: none;
}

.btn-primary {
  background: var(--grad-cta);
  color: white;
  box-shadow: var(--shadow-glow);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(232,99,74,0.35);
  color: white;
}

.btn-lg {
  padding: var(--sp-5) var(--sp-10);
  font-size: 1.08rem;
  border-radius: var(--radius-lg);
}

.calc-results {
  margin-top: var(--sp-8);
  padding-top: var(--sp-8);
  border-top: 2px solid var(--clr-divider);
  display: none;
}

.calc-results.visible {
  display: block;
  animation: fadeInUp 0.5s var(--ease-out);
}

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(16px); }
  to { opacity: 1; transform: translateY(0); }
}

.result-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--sp-5);
}

.result-card {
  background: var(--grad-warm);
  border-radius: var(--radius-md);
  padding: var(--sp-6);
  text-align: center;
}

.result-card .value {
  font-size: 2rem;
  font-weight: 800;
  color: var(--clr-primary);
  line-height: 1.2;
}

.result-card .label {
  font-size: 0.85rem;
  color: var(--clr-text-muted);
  margin-top: var(--sp-2);
}

/* ---------- FAQ Accordion ---------- */
.faq-list {
  margin: var(--sp-8) 0;
}

.faq-item {
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-md);
  margin-bottom: var(--sp-3);
  overflow: hidden;
  transition: box-shadow var(--duration-fast);
}

.faq-item:hover {
  box-shadow: var(--shadow-sm);
}

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: var(--sp-5) var(--sp-6);
  background: var(--clr-surface);
  border: none;
  cursor: pointer;
  font-size: 1rem;
  font-weight: 600;
  font-family: var(--font-body);
  color: var(--clr-text);
  text-align: left;
  transition: background var(--duration-fast);
}

.faq-question:hover {
  background: var(--clr-divider);
}

.faq-question .arrow {
  font-size: 1.2rem;
  transition: transform var(--duration-normal) var(--ease-spring);
  flex-shrink: 0;
  margin-left: var(--sp-4);
}

.faq-item.open .faq-question .arrow {
  transform: rotate(180deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--duration-normal) var(--ease-out);
}

.faq-answer-inner {
  padding: 0 var(--sp-6) var(--sp-6);
  color: var(--clr-text-light);
  font-size: 0.95rem;
  line-height: 1.8;
}

.faq-item.open .faq-answer {
  max-height: 500px;
}

/* ---------- Footer ---------- */
.footer {
  background: var(--clr-text);
  color: rgba(255,255,255,0.7);
  padding: var(--sp-16) 0 var(--sp-8);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--sp-10);
  margin-bottom: var(--sp-12);
}

.footer-brand p {
  font-size: 0.92rem;
  line-height: 1.8;
  margin-top: var(--sp-4);
}

.footer h4 {
  color: white;
  font-size: 0.95rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: var(--sp-5);
}

.footer-links {
  list-style: none;
  padding: 0;
}

.footer-links li {
  margin-bottom: var(--sp-2);
}

.footer-links a {
  color: rgba(255,255,255,0.6);
  font-size: 0.9rem;
  transition: color var(--duration-fast);
}

.footer-links a:hover {
  color: var(--clr-primary-light);
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: var(--sp-8);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.82rem;
  flex-wrap: wrap;
  gap: var(--sp-4);
}

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
  .content-layout {
    grid-template-columns: 1fr;
  }
  .sidebar {
    position: static;
  }
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
    position: absolute;
    top: 70px;
    left: 0;
    right: 0;
    background: rgba(255,255,255,0.98);
    backdrop-filter: blur(20px);
    flex-direction: column;
    padding: var(--sp-4);
    border-bottom: 1px solid var(--clr-border);
    box-shadow: var(--shadow-md);
  }

  .nav-links.open {
    display: flex;
  }

  .nav-toggle {
    display: block;
  }

  .hero {
    padding: var(--sp-16) 0 var(--sp-12);
  }

  .hero-badges {
    flex-direction: column;
    align-items: center;
  }

  .cards-grid {
    grid-template-columns: 1fr;
    gap: var(--sp-5);
  }

  .calc-form {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--sp-8);
  }

  .section {
    padding: var(--sp-12) 0;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 var(--sp-4);
  }

  .footer-grid {
    grid-template-columns: 1fr;
  }

  .result-cards {
    grid-template-columns: 1fr;
  }
}

/* ---------- Utility classes ---------- */
.text-center { text-align: center; }
.text-muted { color: var(--clr-text-muted); }
.text-primary { color: var(--clr-primary); }
.mt-2 { margin-top: var(--sp-8); }
.mt-3 { margin-top: var(--sp-12); }
.mb-2 { margin-top: var(--sp-8); }
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
}

/* ---------- Print ---------- */
@media print {
  .navbar, .footer, .sidebar, .top-banner { display: none; }
  body { font-size: 12pt; color: black; }
  .content-layout { grid-template-columns: 1fr; }
}