/* ==========================================================================
   Copilot Academy — tappa.css
   Stili specifici per le pagine del Percorso Avanzato (tappa-1 … tappa-4).
   Pensato per essere caricato DOPO assets/styles.css. Definisce comunque
   le variabili principali in fallback, così resta utilizzabile anche da solo.
   ========================================================================== */

:root {
  --ms-blue: #0078D4;
  --ms-blue-dark: #106EBE;
  --ms-blue-darker: #005A9E;
  --copilot-purple: #8B5CF6;
  --copilot-pink: #EC4899;
  --copilot-gradient: linear-gradient(135deg, #0078D4 0%, #8B5CF6 50%, #EC4899 100%);
  --copilot-gradient-soft: linear-gradient(135deg, rgba(0,120,212,0.08) 0%, rgba(139,92,246,0.08) 50%, rgba(236,72,153,0.08) 100%);
  --neutral-100: #F3F2F1;
  --neutral-200: #EDEBE9;
  --neutral-300: #E1DFDD;
  --neutral-400: #C8C6C4;
  --neutral-600: #605E5C;
  --neutral-700: #3B3A39;
  --neutral-800: #201F1E;
  --neutral-900: #11100F;
  --bg: #FFFFFF;
  --bg-soft: #FAF9F8;
  --bg-card: #FFFFFF;
  --text: #201F1E;
  --text-soft: #605E5C;
  --border: #E1DFDD;
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.04), 0 1px 3px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 8px rgba(0,0,0,0.06), 0 2px 4px rgba(0,0,0,0.06);
  --shadow-lg: 0 12px 32px rgba(0,0,0,0.08), 0 4px 12px rgba(0,0,0,0.06);
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
}

/* ==========================================================================
   Hero della tappa
   ========================================================================== */
.tappa-hero {
  position: relative;
  padding: clamp(48px, 6vw, 80px) 0 clamp(32px, 4vw, 48px);
  background: linear-gradient(180deg, var(--bg-soft) 0%, var(--bg) 100%);
  border-bottom: 1px solid var(--border);
  overflow: hidden;
}
.tappa-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at top right, rgba(139, 92, 246, 0.10), transparent 55%),
    radial-gradient(ellipse at bottom left, rgba(0, 120, 212, 0.08), transparent 55%);
  pointer-events: none;
  z-index: 0;
}
.tappa-hero__inner {
  position: relative;
  z-index: 1;
  max-width: 880px;
  margin: 0 auto;
}

.breadcrumb {
  font-size: 0.88rem;
  color: var(--text-soft);
  margin-bottom: 18px;
}
.breadcrumb a { color: var(--text-soft); text-decoration: none; }
.breadcrumb a:hover { color: var(--ms-blue); text-decoration: underline; }
.breadcrumb .sep { margin: 0 6px; color: var(--neutral-400); }
.breadcrumb .current { color: var(--neutral-800); font-weight: 500; }

.tappa-hero__pill {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  padding: 8px 16px 8px 8px;
  border-radius: 999px;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--neutral-800);
  margin-bottom: 20px;
  box-shadow: var(--shadow-sm);
}
.tappa-hero__pill .num {
  width: 30px;
  height: 30px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--copilot-gradient);
  color: #fff;
  font-weight: 700;
  font-size: 0.85rem;
  box-shadow: 0 4px 12px rgba(139, 92, 246, 0.30);
}

.tappa-hero__title {
  font-size: clamp(2rem, 3.4vw + 1rem, 3.2rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin: 0 0 18px;
  color: var(--neutral-900);
}
.tappa-hero__title .grad {
  background: var(--copilot-gradient);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}

.tappa-hero__lead {
  font-size: 1.12rem;
  line-height: 1.6;
  color: var(--text-soft);
  max-width: 70ch;
  margin: 0 0 24px;
}

.tappa-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 18px;
  font-size: 0.92rem;
  color: var(--neutral-700);
}
.tappa-hero__meta span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  padding: 6px 12px;
  border-radius: 999px;
}

/* ==========================================================================
   Video section
   ========================================================================== */
.video-section {
  padding: clamp(24px, 3vw, 32px) 0 0;
}
#video-slot {
  position: relative;
  max-width: 960px;
  margin: 0 auto;
  aspect-ratio: 16 / 9;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  background: #0b0b0b
    linear-gradient(135deg, rgba(0,120,212,0.18), rgba(139,92,246,0.18), rgba(236,72,153,0.18));
  display: grid;
  place-items: center;
  color: #fff;
}
#video-slot::after {
  content: "Video in arrivo";
  font-weight: 600;
  letter-spacing: 0.02em;
  text-shadow: 0 2px 8px rgba(0,0,0,0.5);
}
#video-slot iframe,
#video-slot video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
}
#video-slot:has(iframe)::after,
#video-slot:has(video)::after { content: none; }

/* ==========================================================================
   Layout corpo tappa (main + aside)
   ========================================================================== */
.tappa-body {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 300px;
  gap: 48px;
  max-width: 1100px;
  margin: 0 auto;
  padding: clamp(16px, 2vw, 24px) 0 clamp(40px, 5vw, 64px);
}
.tappa-body__main { min-width: 0; }
.tappa-body__main h2 {
  margin: 36px 0 12px;
  font-size: 1.5rem;
  color: var(--neutral-900);
  font-weight: 600;
  letter-spacing: -0.01em;
}
.tappa-body__main h2:first-child { margin-top: 0; }
.tappa-body__main h3 {
  margin: 24px 0 10px;
  font-size: 1.15rem;
  color: var(--neutral-900);
}
.tappa-body__main p,
.tappa-body__main li {
  font-size: 1rem;
  line-height: 1.7;
  color: var(--neutral-800);
}
.tappa-body__main p { margin: 0 0 14px; }
.tappa-body__main ul,
.tappa-body__main ol { padding-left: 22px; margin: 0 0 18px; }
.tappa-body__main li { margin-bottom: 8px; }
.tappa-body__main a { color: var(--ms-blue); text-decoration: none; }
.tappa-body__main a:hover { color: var(--ms-blue-dark); text-decoration: underline; }
.tappa-body__main code {
  background: var(--neutral-100);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 1px 6px;
  font-size: 0.92em;
  font-family: "Cascadia Mono", "Consolas", ui-monospace, monospace;
}

/* Steps numerati */
.steps {
  list-style: none;
  padding: 0;
  margin: 18px 0;
  counter-reset: stepcounter;
  display: grid;
  gap: 12px;
}
.steps > li {
  counter-increment: stepcounter;
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-left: 4px solid var(--ms-blue);
  border-radius: var(--radius-md);
  padding: 14px 18px 14px 56px;
  box-shadow: var(--shadow-sm);
}
.steps > li::before {
  content: counter(stepcounter);
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  width: 30px;
  height: 30px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--copilot-gradient);
  color: #fff;
  font-weight: 700;
  font-size: 0.9rem;
  box-shadow: 0 4px 10px rgba(139, 92, 246, 0.25);
}

/* Callout */
.callout {
  background: var(--copilot-gradient-soft);
  border: 1px solid rgba(139, 92, 246, 0.22);
  border-left: 4px solid var(--copilot-purple);
  border-radius: var(--radius-md);
  padding: 16px 20px;
  margin: 22px 0;
  font-size: 0.98rem;
  color: var(--neutral-800);
  line-height: 1.65;
}
.callout strong { color: var(--neutral-900); }

/* ==========================================================================
   Aside cards (colonna destra)
   ========================================================================== */
.tappa-body__aside {
  position: sticky;
  top: 88px;
  align-self: start;
  display: grid;
  gap: 16px;
}
.aside-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 20px;
  box-shadow: var(--shadow-sm);
}
.aside-card h4 {
  font-size: 0.82rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ms-blue);
  margin: 0 0 12px;
  font-weight: 700;
}
.aside-card p {
  font-size: 0.92rem;
  color: var(--neutral-700);
  line-height: 1.55;
  margin: 0 0 10px;
}
.aside-card ul { padding-left: 18px; margin: 0; }
.aside-card li {
  font-size: 0.92rem;
  color: var(--neutral-800);
  margin-bottom: 6px;
}
.aside-card a { color: var(--ms-blue); text-decoration: none; }
.aside-card a:hover { color: var(--ms-blue-dark); text-decoration: underline; }

/* Card dispensa con icona PDF */
.aside-card.dispensa {
  background:
    linear-gradient(180deg, rgba(236,72,153,0.06), rgba(139,92,246,0.04));
  border-color: rgba(236,72,153,0.22);
}
.pdf-icon {
  display: inline-grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border-radius: 10px;
  background: var(--copilot-gradient);
  color: #fff;
  font-weight: 800;
  font-size: 0.75rem;
  letter-spacing: 0.04em;
  margin-bottom: 12px;
  box-shadow: 0 6px 16px rgba(236, 72, 153, 0.28);
}

/* Bottone (riusabile, allineato al sito) */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 18px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.92rem;
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none;
  transition: transform 0.15s ease, box-shadow 0.2s ease, background 0.2s ease;
  font-family: inherit;
}
.btn--primary {
  background: var(--ms-blue);
  color: #fff;
  box-shadow: 0 4px 12px rgba(0, 120, 212, 0.28);
}
.btn--primary:hover {
  background: var(--ms-blue-dark);
  color: #fff;
  transform: translateY(-1px);
  text-decoration: none;
}
.btn--gradient {
  background: var(--copilot-gradient);
  color: #fff;
  box-shadow: 0 6px 16px rgba(139, 92, 246, 0.32);
}
.btn--gradient:hover {
  color: #fff;
  transform: translateY(-1px);
  text-decoration: none;
}

/* ==========================================================================
   Navigazione tra tappe (prev / next)
   ========================================================================== */
.tappa-nav {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin: 40px auto 0;
  padding: 28px 0 0;
  border-top: 1px solid var(--border);
  max-width: 1100px;
}
.tappa-nav__link {
  display: flex;
  align-items: center;
  padding: 18px 22px;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  text-decoration: none;
  background: var(--bg-card);
  color: inherit;
  transition: border-color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
}
.tappa-nav__link:hover {
  border-color: var(--ms-blue);
  text-decoration: none;
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}
.tappa-nav__link--next {
  justify-content: flex-end;
  text-align: right;
}
.tappa-nav__link--disabled {
  opacity: 0.45;
  pointer-events: none;
  cursor: default;
}
.tappa-nav__dir {
  font-size: 0.78rem;
  color: var(--text-soft);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.tappa-nav__title {
  font-weight: 600;
  color: var(--neutral-900);
  margin-top: 2px;
}

/* ==========================================================================
   Q&A section in fondo a ogni tappa
   ========================================================================== */
.qa-section {
  padding: clamp(40px, 5vw, 64px) 0;
  background: var(--bg-soft);
  border-top: 1px solid var(--border);
}
.qa-card {
  max-width: 760px;
  margin: 0 auto;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  box-shadow: var(--shadow-md);
}
.qa-card__head {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 20px;
}
.qa-card__icon {
  width: 48px;
  height: 48px;
  display: grid;
  place-items: center;
  border-radius: 12px;
  background: var(--copilot-gradient-soft);
  font-size: 22px;
  flex-shrink: 0;
}
.qa-card__head h2 {
  margin: 0 0 4px;
  font-size: 1.3rem;
  color: var(--neutral-900);
}
.qa-card__head p {
  margin: 0;
  font-size: 0.94rem;
  color: var(--text-soft);
}

.qa-form { display: grid; gap: 14px; }
.qa-form__row { display: grid; gap: 6px; }
.qa-form label {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--neutral-800);
}
.qa-form input[type="text"],
.qa-form textarea {
  font: inherit;
  width: 100%;
  padding: 10px 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg);
  color: var(--neutral-900);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}
.qa-form input[type="text"]:focus,
.qa-form textarea:focus {
  outline: none;
  border-color: var(--ms-blue);
  box-shadow: 0 0 0 3px rgba(0, 120, 212, 0.18);
}
.qa-form textarea {
  min-height: 120px;
  resize: vertical;
}

.gate-form__feedback {
  font-size: 0.9rem;
  color: var(--text-soft);
  min-height: 0;
}
.gate-form__feedback.is-error { color: #B4262C; }
.gate-form__feedback.is-success { color: #107C10; }

.qa-meta {
  font-size: 0.84rem;
  color: var(--text-soft);
  margin: 14px 0 0;
}

/* ==========================================================================
   Responsive
   ========================================================================== */
@media (max-width: 960px) {
  .tappa-body {
    grid-template-columns: 1fr;
    gap: 28px;
  }
  .tappa-body__aside {
    position: static;
  }
}
@media (max-width: 720px) {
  .tappa-nav { grid-template-columns: 1fr; }
  .tappa-nav__link--next { justify-content: flex-start; text-align: left; }
  .tappa-hero__meta { gap: 8px; }
}
@media (max-width: 480px) {
  .qa-card { padding: 20px; }
  .steps > li { padding-left: 52px; }
}

/* ==========================================================================
   Print
   ========================================================================== */
@media print {
  .tappa-nav, .qa-section, .video-section { display: none !important; }
  .tappa-body { grid-template-columns: 1fr; }
  .tappa-body__aside { display: none; }
}