/* =========================
   VD · Branding Digitale
   Narrative Sequencing Layout
   ========================= */

/* ── Design Tokens ── */

.vd-branding-page {
  --vd-dark: #0c2931;
  --vd-mid: #4a5f6a;
  --vd-light: #ededed;
  --vd-soft: #b7c5cd;
  --vd-ink: #0c2931;
  --vd-accent: #ff810a;
  --vd-accent-border: rgba(255, 129, 10, 0.72);
  --vd-muted: rgba(12, 41, 49, 0.65);
  --vd-glass: rgba(12, 41, 49, 0.45);
  --vd-glass-border: rgba(255, 255, 255, 0.08);

  --vd-font-ui: 'Montserrat', system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  --vd-font-body: 'Libre Baskerville', Georgia, 'Times New Roman', serif;

  --vd-h1: clamp(30px, 6vw, 64px);
  --vd-h2: clamp(1.5rem, 3.4vw, 2.4rem);
  --vd-h3: clamp(1.15rem, 2vw, 1.45rem);
  --vd-lead: clamp(16px, 2.6vw, 24px);
  --vd-body: clamp(1rem, 2.5vw, 1.1rem);
  --vd-eyebrow: clamp(12px, 1.2vw, 16px);
  --vd-proof-num: clamp(2.5rem, 6vw, 4.5rem);

  --vd-section-padding: clamp(56px, 9vw, 120px);
  --vd-radius: 20px;
  --vd-radius-sm: 12px;
  --vd-radius-pill: 9999px;
  --vd-duration: 0.3s;
  --vd-duration-slow: 0.35s;

  font-family: var(--vd-font-ui);
  color: var(--vd-light);
  background: var(--vd-dark);
}

.vd-branding-page *,
.vd-branding-page *::before,
.vd-branding-page *::after {
  box-sizing: border-box;
}


/* ── Base Surface ── */

.vd-branding-surface {
  position: relative;
  overflow: hidden;
  padding: var(--vd-section-padding) 16px;
  background: var(--vd-section-bg, var(--vd-dark));
  color: var(--vd-section-text, var(--vd-light));
}

.vd-branding-surface::before,
.vd-branding-surface::after {
  content: none;
}

.vd-branding-surface > * {
  position: relative;
  z-index: 1;
}

.vd-branding-wrap {
  max-width: 1180px;
  margin: 0 auto;
  display: grid;
  gap: clamp(22px, 4vw, 40px);
}


/* ── Alternanza sezioni ── */

.vd-branding-hero {
  --vd-section-bg: var(--vd-dark);
  --vd-section-text: var(--vd-light);
  min-height: calc(100vh - var(--vd-showcase-header-offset, 0px));
  min-height: calc(100svh - var(--vd-showcase-header-offset, 0px));
  display: grid;
  align-items: center;
  padding-top: clamp(18px, 5vh, 56px);
  padding-bottom: clamp(18px, 7vh, 72px);
}

.vd-branding-contrast {
  --vd-section-bg: var(--vd-light);
  --vd-section-text: var(--vd-ink);
}

.vd-branding-benefits {
  --vd-section-bg: var(--vd-dark);
  --vd-section-text: var(--vd-light);
}

.vd-branding-method {
  --vd-section-bg: var(--vd-light);
  --vd-section-text: var(--vd-ink);
}

.vd-branding-pillars {
  --vd-section-bg: var(--vd-mid);
  --vd-section-text: var(--vd-light);
}

.vd-branding-proof {
  --vd-section-bg: var(--vd-dark);
  --vd-section-text: var(--vd-light);
}

.vd-branding-audience {
  --vd-section-bg: var(--vd-light);
  --vd-section-text: var(--vd-ink);
}

.vd-branding-quote {
  --vd-section-bg: var(--vd-dark);
  --vd-section-text: var(--vd-light);
  padding: clamp(72px, 12vw, 160px) 16px;
}

.vd-branding-faq {
  --vd-section-bg: var(--vd-light);
  --vd-section-text: var(--vd-ink);
}

.vd-branding-cta-final {
  --vd-section-bg: var(--vd-mid);
  --vd-section-text: var(--vd-light);
  text-align: center;
}


/* ── Typography ── */

.vd-branding-eyebrow {
  font-size: var(--vd-eyebrow);
  font-weight: 600;
  letter-spacing: 0.35em;
  text-transform: uppercase;
  color: var(--vd-accent);
  margin: 0;
}

.vd-branding-contrast .vd-branding-eyebrow,
.vd-branding-method .vd-branding-eyebrow,
.vd-branding-audience .vd-branding-eyebrow,
.vd-branding-faq .vd-branding-eyebrow {
  color: var(--vd-mid);
}

.vd-branding-title {
  font-size: var(--vd-h1);
  font-weight: 700;
  line-height: 1.08;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--vd-section-text);
  margin: 0;
  max-width: 18ch;
}

.vd-branding-h2 {
  font-size: var(--vd-h2);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--vd-section-text);
  margin: 0;
}

.vd-branding-h3 {
  font-family: var(--vd-font-ui);
  font-size: var(--vd-h3);
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  color: var(--vd-section-text);
  margin: 0;
}

.vd-branding-lead {
  font-family: var(--vd-font-body);
  font-size: var(--vd-lead);
  line-height: 1.75;
  color: var(--vd-soft);
  margin: 0;
  max-width: 52ch;
}

.vd-branding-contrast .vd-branding-lead,
.vd-branding-method .vd-branding-lead,
.vd-branding-audience .vd-branding-lead,
.vd-branding-faq .vd-branding-lead {
  color: var(--vd-muted);
}

.vd-branding-cta-final .vd-branding-lead {
  color: rgba(255, 255, 255, 0.78);
  max-width: 56ch;
  margin: 0 auto;
}

.vd-branding-body {
  font-family: var(--vd-font-body);
  font-size: var(--vd-body);
  line-height: 1.75;
  margin: 0;
}

.vd-branding-hero .vd-branding-body { color: var(--vd-soft); }
.vd-branding-contrast .vd-branding-body,
.vd-branding-method .vd-branding-body,
.vd-branding-audience .vd-branding-body,
.vd-branding-faq .vd-branding-body { color: var(--vd-muted); }
.vd-branding-benefits .vd-branding-body,
.vd-branding-pillars .vd-branding-body,
.vd-branding-proof .vd-branding-body,
.vd-branding-cta-final .vd-branding-body { color: rgba(255, 255, 255, 0.78); }


/* ── Hero ── */

.vd-branding-hero-text {
  display: grid;
  gap: 20px;
}


/* ── CTA ── */

.vd-branding-cta-main {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 36px;
  font-family: var(--vd-font-ui);
  font-size: clamp(14px, 1.4vw, 16px);
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--vd-dark);
  background: var(--vd-accent);
  border-radius: var(--vd-radius-pill);
  transition: background var(--vd-duration), transform var(--vd-duration);
  white-space: nowrap;
  width: fit-content;
}

.vd-branding-cta-main:hover,
.vd-branding-cta-main:focus-visible {
  background: #e67200;
  transform: translateY(-2px);
}

.vd-branding-cta-main:focus-visible {
  outline: 2px solid var(--vd-accent-border);
  outline-offset: 3px;
}

.vd-branding-cta-final .vd-branding-cta-main {
  margin: 0 auto;
}


/* ── Split layout ── */

.vd-branding-split {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(32px, 5vw, 64px);
  align-items: start;
}

@media (min-width: 768px) {
  .vd-branding-split {
    grid-template-columns: 5fr 6fr;
  }
}

.vd-branding-split-right {
  display: grid;
  gap: 20px;
}


/* ── Contrast Grid (Prima / Dopo) ── */

.vd-branding-contrast-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(20px, 3vw, 32px);
}

@media (min-width: 768px) {
  .vd-branding-contrast-grid {
    grid-template-columns: 1fr 1fr;
  }
}

.vd-branding-contrast-card {
  padding: clamp(28px, 4vw, 44px);
  border-radius: var(--vd-radius);
  position: relative;
}

.vd-branding-contrast-before {
  background: rgba(12, 41, 49, 0.06);
  border: 1px solid rgba(12, 41, 49, 0.1);
}

.vd-branding-contrast-after {
  background: var(--vd-dark);
  color: var(--vd-light);
  border: 1px solid var(--vd-accent-border);
}

.vd-branding-contrast-after .vd-branding-body {
  color: rgba(255, 255, 255, 0.78);
}

.vd-branding-contrast-label {
  display: block;
  font-family: var(--vd-font-ui);
  font-size: var(--vd-eyebrow);
  font-weight: 600;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  margin-bottom: 16px;
}

.vd-branding-contrast-before .vd-branding-contrast-label {
  color: var(--vd-mid);
}

.vd-branding-contrast-after .vd-branding-contrast-label {
  color: var(--vd-accent);
}


/* ── Benefit Stacking ── */

.vd-branding-benefits-intro {
  display: grid;
  gap: 16px;
  max-width: 680px;
}

.vd-branding-stack {
  display: grid;
  gap: 0;
  margin-top: clamp(16px, 3vw, 32px);
}

.vd-branding-stack-item {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: clamp(20px, 3vw, 40px);
  align-items: start;
  padding: clamp(28px, 4vw, 44px) 0;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.vd-branding-stack-item:last-child {
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.vd-branding-stack-num {
  font-family: var(--vd-font-ui);
  font-size: clamp(2rem, 4vw, 3.5rem);
  font-weight: 700;
  line-height: 1;
  color: var(--vd-accent);
  opacity: 0.35;
  letter-spacing: -0.02em;
  min-width: 56px;
}

.vd-branding-stack-content {
  display: grid;
  gap: 12px;
}


/* ── Pillars Grid ── */

.vd-branding-pillars-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(16px, 2.5vw, 24px);
  margin-top: clamp(8px, 2vw, 20px);
}

@media (max-width: 767px) {
  .vd-branding-pillars-grid {
    display: flex;
    gap: 16px;
    overflow-x: auto;
    padding: 0 0 8px;
    scroll-snap-type: x mandatory;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
  }

  .vd-branding-pillars-grid::-webkit-scrollbar {
    display: none;
  }
}

@media (min-width: 600px) {
  .vd-branding-pillars-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 960px) {
  .vd-branding-pillars-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.vd-branding-pillar-card {
  padding: clamp(24px, 3.5vw, 36px);
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--vd-glass-border);
  border-radius: var(--vd-radius);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  display: grid;
  gap: 14px;
  transition: border-color var(--vd-duration);
}

@media (max-width: 767px) {
  .vd-branding-pillar-card {
    flex: 0 0 min(84vw, 320px);
    min-height: 100%;
    scroll-snap-align: start;
    scroll-snap-stop: always;
  }
}

.vd-branding-pillar-card:hover {
  border-color: var(--vd-accent-border);
}

.vd-branding-pillar-icon {
  display: flex;
  width: 44px;
  height: 44px;
  color: var(--vd-accent);
}

.vd-branding-pillar-icon svg {
  width: 100%;
  height: 100%;
}


/* ── Social Proof ── */

.vd-branding-proof-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 3.5vw, 40px);
}

@media (min-width: 768px) {
  .vd-branding-proof-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.vd-branding-proof-stat {
  text-align: center;
  display: grid;
  gap: 12px;
  justify-items: center;
}

.vd-branding-proof-num {
  font-family: var(--vd-font-ui);
  font-size: var(--vd-proof-num);
  font-weight: 700;
  line-height: 1;
  color: var(--vd-accent);
  letter-spacing: -0.02em;
}

.vd-branding-proof-unit {
  font-size: 0.5em;
  font-weight: 600;
  letter-spacing: 0.05em;
  color: var(--vd-soft);
  margin-left: 4px;
}


/* ── Quote ── */

.vd-branding-blockquote {
  margin: 0;
  text-align: center;
}

.vd-branding-blockquote p {
  font-family: var(--vd-font-body);
  font-size: clamp(1.25rem, 3vw, 2rem);
  font-style: italic;
  line-height: 1.55;
  color: var(--vd-soft);
  margin: 0 auto;
  max-width: 38ch;
}


/* ── FAQ ── */

.vd-branding-faq-intro {
  display: grid;
  gap: 12px;
  max-width: 580px;
}

.vd-branding-faq-stack {
  display: grid;
  gap: 0;
}

.vd-branding-faq-card {
  position: relative;
  overflow: hidden;
  border-radius: 0;
  border-bottom: 1px solid currentColor;
  padding-bottom: 18px;
  color: var(--vd-ink);
  transition: border-color var(--vd-duration), transform var(--vd-duration);
}

.vd-branding-faq-card:hover {
  transform: translateY(-1px);
}

.vd-branding-faq-card[open] {
  color: var(--vd-accent);
}

.vd-branding-faq-card summary {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  flex-wrap: wrap;
  gap: 12px;
  padding: 12px 0;
  cursor: pointer;
  list-style: none;
  font-family: var(--vd-font-ui);
  font-weight: 700;
  font-size: 1rem;
  line-height: 1.25;
  color: inherit;
  transition: color var(--vd-duration);
}

.vd-branding-faq-card summary::-webkit-details-marker {
  display: none;
}

.vd-branding-faq-card summary:hover,
.vd-branding-faq-card[open] summary {
  color: var(--vd-accent);
}

.vd-branding-question {
  flex: 0 1 auto;
  min-width: 0;
}

.vd-branding-faq-ico {
  flex: 0 0 28px;
  height: 28px;
  display: grid;
  place-items: center;
  margin-left: auto;
  border-radius: 999px;
  border: 1px solid currentColor;
  background: transparent;
  color: inherit;
  transition: transform var(--vd-duration), background var(--vd-duration), border-color var(--vd-duration);
}

.vd-branding-faq-ico svg {
  width: 14px;
  height: 14px;
  fill: currentColor;
  transition: transform var(--vd-duration);
}

.vd-branding-faq-card[open] .vd-branding-faq-ico {
  background: currentColor;
  border-color: currentColor;
}

.vd-branding-faq-card[open] .vd-branding-faq-ico svg {
  fill: var(--vd-light);
  transform: rotate(45deg);
}

.vd-branding-answer {
  padding: 0 0 4px;
}

.vd-branding-answer p {
  font-family: var(--vd-font-ui);
  font-size: 0.95rem;
  font-weight: 500;
  line-height: 1.55;
  color: var(--vd-muted);
  margin: 0;
  max-width: 72ch;
}

.vd-branding-faq summary:focus-visible {
  outline: 2px solid rgba(255, 129, 10, 0.65);
  outline-offset: 3px;
  border-radius: 14px;
}


/* ── Scroll Reveal (base) ── */

.vd-branding-reveal {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.7s cubic-bezier(0.22, 1, 0.36, 1),
              transform 0.7s cubic-bezier(0.22, 1, 0.36, 1);
}

.vd-branding-reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}


/* ── Reduced Motion ── */

@media (prefers-reduced-motion: reduce) {
  .vd-branding-reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
}


/* ── Print ── */

@media print {
  .vd-branding-surface {
    padding: 24px 0;
    break-inside: avoid;
  }

  .vd-branding-reveal {
    opacity: 1;
    transform: none;
  }

  .vd-branding-cta-main {
    display: none;
  }
}