/* ============================================
   COMPONENTS — elementi riusabili
   Sistema visivo ECOSYST-AI: Graphite / Ivory / Gold / Slate / Stone
   ============================================ */

/* ---- Typography ----
   Montserrat 300 per headline/h2/h3, 400 per il corpo, 500 per
   menu/CTA/label (vedi regole dedicate più sotto). */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 300;
  line-height: var(--lh-tight);
  letter-spacing: -0.01em;
  text-wrap: balance;
}

h1 {
  font-size: var(--fs-3xl);
}

h2 {
  font-size: var(--fs-2xl);
}

h3 {
  font-size: var(--fs-lg);
  font-weight: 300;
}

p {
  font-weight: 400;
  line-height: var(--lh-normal);
  color: var(--color-muted);
}

strong, b {
  font-weight: 500;
}

.section--dark p,
.section--dark .text-muted {
  color: var(--color-muted-inverse);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  font-family: var(--font-main);
  font-size: var(--fs-xs);
  font-weight: 500;
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
  color: var(--color-accent-strong);
}

.eyebrow::before {
  content: "";
  width: 22px;
  height: 1px;
  background: var(--color-accent);
  display: inline-block;
}

.section--dark .eyebrow {
  color: var(--color-accent);
}

.section--dark .eyebrow::before {
  background: var(--color-accent);
}

.lede {
  font-size: var(--fs-md);
  /* color: var(--color-muted); */
  color: var(--stone);
  max-width: 640px;
}

.lede-inverse {
  font-size: var(--fs-md);
  color: var(--slate);
  max-width: 640px;
}

.section--dark .lede {
  color: var(--color-muted-inverse);
}

.section-head {
  margin-bottom: var(--space-lg);
}

.section-head h2 {
  margin-top: var(--space-xs);
  max-width: 820px;
}

.text-center {
  text-align: center;
  margin-left: auto;
  margin-right: auto;
}

/* ---- Logo ----
   Il logo è l'asset ufficiale approvato (immagine raster), non va
   ricostruito in testo/SVG. Due varianti: sfondo chiaro / sfondo scuro. */
.logo {
  display: inline-flex;
  align-items: center;
}

.logo img {
  display: block;
  height: 60px;
  width: auto;
  object-fit: contain;
}

.logo--footer img {
  height: 64px;
}

/* ---- Nav ---- */
.nav-list {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.nav-list a {
  font-size: var(--fs-sm);
  font-weight: 500;
  letter-spacing: 0.01em;
  color: var(--color-text);
  position: relative;
  padding: var(--space-2xs) 0;
  transition: color var(--transition-fast);
}

.nav-list a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 0;
  height: 1px;
  background: var(--color-accent);
  transition: width var(--transition-base);
}

.nav-list a:hover {
  color: var(--color-accent-strong);
}

.nav-list a:hover::after,
.nav-list a[aria-current="page"]::after {
  width: 100%;
}

.nav-list a[aria-current="page"] {
  color: var(--color-accent-strong);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

/* ---- Buttons ---- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2xs);
  padding: 0.9em 1.75em;
  font-family: var(--font-main);
  font-size: var(--fs-sm);
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  transition: background var(--transition-fast), color var(--transition-fast), transform var(--transition-fast), border-color var(--transition-fast);
  white-space: nowrap;
}

.btn--primary {
  background: var(--color-accent);
  color: var(--color-bg-graphite);
  border-color: var(--color-accent);
}

.btn--primary:hover {
  background: transparent;
  color: var(--color-accent);
  transform: translateY(-1px);
}

.section--dark .btn--primary:hover {
  color: var(--color-accent);
}

.btn--secondary {
  background: transparent;
  color: var(--color-text);
  border: 1px solid var(--color-border);
}

.btn--secondary:hover {
  border-color: var(--color-accent);
  color: var(--color-accent-strong);
}

.section--dark .btn--secondary {
  color: var(--color-text-inverse);
  border-color: var(--color-border-dark);
}

.section--dark .btn--secondary:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

.btn--ghost {
  background: transparent;
  color: var(--color-accent-strong);
  padding: 0.5em 0;
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.section--dark .btn--ghost {
  color: var(--color-accent);
}

.btn--ghost::after {
  content: "→";
  margin-left: 0.5em;
  display: inline-block;
  transition: transform var(--transition-fast);
}

.btn--ghost:hover::after {
  transform: translateX(3px);
}

/* ---- Hamburger ---- */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 24px;
  padding: 0.4em;
}

.hamburger span {
  display: block;
  width: 100%;
  height: 1px;
  background: var(--color-text);
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}

.hamburger[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.hamburger[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}

.hamburger[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ---- Cards ---- */
.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-md);
  transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
  position: relative;
}

.card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-accent);
  transition: width var(--transition-base);
}

.card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
  border-color: var(--color-accent);
}

.card:hover::before {
  width: 100%;
}

.card__icon {
  width: 44px;
  height: 44px;
  margin-bottom: var(--space-sm);
}

.card h3 {
  margin-bottom: var(--space-xs);
}

.card--dark {
  background: var(--color-surface-dark);
  border-color: var(--color-border-dark);
}

/* ---- Flow diagram (SITO -> CATALOGO -> AI -> LEAD -> MISURAZIONE) ---- */
.flow {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-xs);
  flex-wrap: nowrap;
}

.flow__node {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-xs);
  text-align: center;
  flex: 1;
  min-width: 0;
}

.flow__badge {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  border: 1px solid var(--color-border-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-surface-dark);
  flex-shrink: 0;
  transition: border-color var(--transition-base), transform var(--transition-base);
}

.flow__badge svg {
  width: 24px;
  height: 24px;
  stroke: var(--color-text-inverse);
}

.flow:hover .flow__badge,
.flow__node:hover .flow__badge {
  border-color: var(--color-accent);
}

.flow__node:hover .flow__badge {
  transform: translateY(-2px);
}

.flow__label {
  font-family: var(--font-main);
  font-size: var(--fs-xs);
  font-weight: 500;
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--color-text-inverse);
}

.flow__connector {
  flex: 0 0 auto;
  width: clamp(16px, 4vw, 56px);
  height: 1px;
  background: linear-gradient(90deg, var(--color-border-dark), var(--color-accent) 50%, var(--color-border-dark));
  opacity: 0.6;
  position: relative;
  margin-top: -28px;
}

.flow__connector::after {
  content: "";
  position: absolute;
  right: -1px;
  top: -2.5px;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--color-accent);
}

/* Light variant of the flow, used on ivory sections */
.flow--light .flow__badge {
  background: var(--color-surface);
  border-color: var(--color-border);
}

.flow--light .flow__badge svg {
  stroke: var(--color-text);
}

.flow--light .flow__label {
  color: var(--color-text);
}

.flow--light .flow__connector {
  background: linear-gradient(90deg, var(--color-border), var(--color-accent) 50%, var(--color-border));
}

/* ---- Before/after comparison (strumenti separati -> ecosistema) ---- */
.compare {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: var(--space-md);
}

.compare__arrow {
  font-size: var(--fs-lg);
  color: var(--color-accent);
}

.compare__box {
  border: 1px solid var(--color-border-dark);
  border-radius: var(--radius-md);
  padding: var(--space-md);
}

.compare__box ul {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
  margin-top: var(--space-sm);
}

.compare__box li {
  font-size: var(--fs-sm);
  color: var(--color-muted-inverse);
  padding-left: var(--space-sm);
  position: relative;
}

.compare__box li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 6px;
  height: 1px;
  background: var(--color-muted-inverse);
}

.compare__box--connected {
  border-color: var(--color-accent);
  background: var(--color-accent-soft);
}

/* ---- Mini-flow (ricerca -> AI -> lead) ---- */
.mini-flow {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  flex-wrap: wrap;
  margin-top: var(--space-md);
}

.mini-flow__step {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-sm) var(--space-md);
  font-size: var(--fs-sm);
  font-weight: 500;
  text-align: center;
}

.mini-flow__arrow {
  color: var(--color-accent);
  font-size: var(--fs-md);
}

/* ---- Query bubble ---- */
.query-bubble {
  display: inline-block;
  background: var(--color-accent-soft);
  color: var(--color-accent-strong);
  border: 1px solid rgba(201, 169, 98, 0.3);
  border-radius: var(--radius-md);
  padding: var(--space-sm) var(--space-md);
  font-family: var(--font-display);
  font-size: var(--fs-md);
  font-weight: 400;
  margin-bottom: var(--space-md);
}

/* ---- Proof / placeholder visuals ---- */
.proof-placeholder {
  aspect-ratio: 16/10;
  border-radius: var(--radius-md);
  background: linear-gradient(155deg, var(--color-surface-dark), var(--color-bg));
  border: 1px solid var(--color-border-dark);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-xs);
  color: var(--color-muted-inverse);
  position: relative;
  overflow: hidden;
}

.proof-placeholder::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--color-border-dark) 1px, transparent 1px),
    linear-gradient(90deg, var(--color-border-dark) 1px, transparent 1px);
  background-size: 28px 28px;
  opacity: 0.35;
}

.proof-placeholder__icon {
  width: 36px;
  height: 36px;
  stroke: var(--color-accent);
  position: relative;
  z-index: 1;
}

.proof-placeholder__label {
  font-size: var(--fs-xs);
  font-weight: 500;
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  position: relative;
  z-index: 1;
}

/* ---- Verticals cards ---- */
.vertical-card {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  padding: var(--space-lg);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  transition: border-color var(--transition-base), box-shadow var(--transition-base), transform var(--transition-base);
}

.vertical-card:hover {
  border-color: var(--color-accent);
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}

.vertical-card__tag {
  font-size: var(--fs-xs);
  font-weight: 500;
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--color-accent-strong);
}

.vertical-card--muted {
  background: var(--color-surface-alt);
  border-style: dashed;
}

.vertical-card--muted .vertical-card__tag {
  color: var(--color-muted);
}

/* ---- Form ---- */
.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
}

.form-field {
  display: flex;
  flex-direction: column;
  gap: var(--space-2xs);
}

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

.form-field label {
  font-size: var(--fs-xs);
  font-weight: 500;
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--color-muted);
}

.form-field input,
.form-field select,
.form-field textarea {
  padding: 0.85em 1em;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-surface);
  font-size: var(--fs-sm);
  transition: border-color var(--transition-fast);
}

.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus {
  border-color: var(--color-accent);
  outline: none;
}

.form-field textarea {
  resize: vertical;
  min-height: 120px;
}

.form-consent {
  display: flex;
  align-items: flex-start;
  gap: var(--space-xs);
  font-size: var(--fs-xs);
  color: var(--color-muted);
}

.form-consent input {
  margin-top: 0.2em;
}

.form-honeypot {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.form-status {
  margin-top: var(--space-sm);
  font-size: var(--fs-sm);
  font-weight: 500;
  display: none;
}

.form-status--visible {
  display: block;
}

.form-status--success {
  color: var(--color-accent-strong);
}

.form-status--error {
  color: #9a4a3d;
}

/* ---- Reveal animation ---- */
.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity var(--transition-slow), transform var(--transition-slow);
}

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

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

/* ---- Responsive ---- */
@media (max-width: 900px) {
  .flow {
    flex-wrap: wrap;
  }
  .flow__connector {
    display: none;
  }
  .compare {
    grid-template-columns: 1fr;
  }
  .compare__arrow {
    transform: rotate(90deg);
    justify-self: center;
  }
}

@media (max-width: 680px) {
  .nav-list,
  .header-actions .btn--primary,
  .header-actions .btn--secondary {
    display: none;
  }
  .hamburger {
    display: flex;
  }
  .form-grid {
    grid-template-columns: 1fr;
  }
  .form-field--full {
    grid-column: auto;
  }
}