/* ============================================
   base.css — cose(in)utili guide
   ============================================ */

/* --- Google Fonts --- */
@import url('https://fonts.googleapis.com/css2?family=Beth+Ellen&family=Manrope:wght@600;700;800&family=Caveat:wght@700&family=Poppins:wght@400;500;600;700;800&family=Raleway:wght@700;800;900&family=Kalam:wght@700&display=swap');

/* --- Token brand --- */
:root {
  --color-green:         #96AF00;
  --color-green-dark:    #748900;
  --color-green-soft:    #EEF3CC;
  --color-fuchsia:       #E23854;
  --color-fuchsia-dark:  #C02040;
  --color-fuchsia-soft:  #FDEAED;

  --color-bg:            #F5EDE3;
  --color-surface:       #FFFFFF;
  --color-border:        #E4DDD4;
  --color-ink:           #2A2A2A;
  --color-ink-soft:      #4A4A4A;
  --color-ink-mute:      #8A8A8A;

  --font-display: 'Poppins', system-ui, sans-serif;
  --font-script:  'Kalam', cursive;
  --font-body:    'Poppins', system-ui, sans-serif;

  --radius-sm:   4px;
  --radius-md:   8px;
  --radius-lg:   12px;
  --radius-xl:   16px;
  --radius-full: 9999px;

  --shadow-card: 0 2px 12px rgba(0,0,0,0.07);
  --shadow-hover: 0 6px 24px rgba(0,0,0,0.12);

  --max-w: 1200px;
  --prose-w: 65ch;
}

/* --- Reset --- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.7;
  color: var(--color-ink);
  background-color: var(--color-bg);
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }

/* --- Tipografia --- */
h1, h2, h3 {
  font-family: var(--font-display);
  line-height: 1.2;
  color: var(--color-ink);
}
h1 { font-size: clamp(2rem, 5vw, 3rem); font-weight: 800; }
h2 { font-size: clamp(1.5rem, 3vw, 2rem); font-weight: 700; }
h3 { font-size: clamp(1.1rem, 2vw, 1.4rem); font-weight: 700; }

.accent {
  font-family: var(--font-script);
  color: var(--color-green);
  font-style: italic;
}
.accent-fuchsia {
  font-family: var(--font-script);
  color: var(--color-fuchsia);
  font-style: italic;
}

/* --- Layout --- */
.container {
  width: 100%;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* --- Header --- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(245, 237, 227, 0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--color-border);
  padding: 0.875rem 0;
}
.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}
.logo {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.25rem;
  color: var(--color-ink);
  letter-spacing: -0.02em;
}
.logo span { color: var(--color-green); }

.site-nav { display: flex; gap: 2rem; align-items: center; }
.site-nav a {
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 0.9rem;
  color: var(--color-ink-soft);
  transition: color 0.2s;
}
.site-nav a:hover, .site-nav a.active { color: var(--color-green); }

/* --- Hamburger --- */
.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 2.25rem;
  height: 2.25rem;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.25rem;
  flex-shrink: 0;
}
.hamburger span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--color-ink);
  border-radius: 2px;
  transition: transform 0.3s, opacity 0.3s;
  transform-origin: center;
}
.site-header.nav-open .hamburger span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.site-header.nav-open .hamburger span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.site-header.nav-open .hamburger span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

@media (max-width: 640px) {
  .hamburger { display: flex; }

  .site-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    gap: 0;
    background: rgba(245, 237, 227, 0.97);
    backdrop-filter: blur(8px);
    border-bottom: 1px solid var(--color-border);
    padding: 0.25rem 1.5rem 1.25rem;
    box-shadow: 0 8px 24px rgba(0,0,0,0.08);
    z-index: 99;
  }

  .site-header.nav-open .site-nav { display: flex; }

  .site-nav a {
    padding: 0.875rem 0;
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-ink);
    border-bottom: 1px solid var(--color-border);
  }
  .site-nav a:last-child { border-bottom: none; }
}

/* --- Bottoni --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-md);
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.9rem;
  cursor: pointer;
  transition: all 0.2s ease;
  border: 2px solid transparent;
  min-height: 44px;
  text-decoration: none;
}
.btn-primary {
  background: var(--color-green);
  color: white;
}
.btn-primary:hover {
  background: var(--color-green-dark);
  transform: scale(1.02);
}
.btn-secondary {
  background: transparent;
  color: var(--color-green);
  border-color: var(--color-green);
}
.btn-secondary:hover {
  background: var(--color-green-soft);
}
.btn-pill {
  border-radius: var(--radius-full);
  padding: 0.5rem 1.25rem;
  font-size: 0.875rem;
}

/* --- Card --- */
.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  overflow: hidden;
  transition: box-shadow 0.25s ease, transform 0.25s ease;
}
.card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-3px);
}

/* --- Badge --- */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-full);
  font-size: 0.8rem;
  font-weight: 600;
}
.badge-green { background: var(--color-green-soft); color: var(--color-green-dark); }
.badge-fuchsia { background: var(--color-fuchsia-soft); color: var(--color-fuchsia-dark); }

/* --- Callout --- */
.callout {
  padding: 1rem 1.25rem;
  border-radius: var(--radius-md);
  border-left: 3px solid;
}
.callout-info { background: var(--color-green-soft); border-color: var(--color-green); }
.callout-warn { background: var(--color-fuchsia-soft); border-color: var(--color-fuchsia); }

/* --- Stepper scroll animation --- */
@media (prefers-reduced-motion: no-preference) {
  .annunci-step,
  .coll-step,
  .pacco-mossa,
  .scambi-flusso__row {
    opacity: 0;
    transform: translateY(22px);
    transition:
      opacity 0.45s ease var(--step-delay, 0ms),
      transform 0.5s cubic-bezier(0.34, 1.56, 0.64, 1) var(--step-delay, 0ms);
  }

  .annunci-step.step-visible,
  .coll-step.step-visible,
  .pacco-mossa.step-visible,
  .scambi-flusso__row.step-visible {
    opacity: 1;
    transform: translateY(0);
  }

  /* Pop sul cerchio numerato */
  .annunci-step__num,
  .pacco-mossa__num {
    transform: scale(0.4);
    transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1) calc(var(--step-delay, 0ms) + 80ms);
  }

  .step-visible .annunci-step__num,
  .step-visible .pacco-mossa__num {
    transform: scale(1);
  }
}

/* --- Footer --- */
.site-footer {
  background: var(--color-ink);
  color: rgba(255,255,255,0.7);
  padding: 2.5rem 0;
  font-size: 0.875rem;
  text-align: center;
}
.site-footer a { color: var(--color-green); }
.site-footer a:hover { color: var(--color-green-soft); }

/* --- Utilità --- */
.sr-only {
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}