/* ============ ALPIFLOW — Design tokens ============ */
:root {
  /* Dark (default — vero brand mode) */
  --bg: #1A1F24;
  --bg-elev: #1F252B;
  --bg-elev-2: #252C33;
  --fg: #E8EEF2;
  --fg-dim: #A5AEB6;
  --fg-mute: #6B7480;
  --line: #2E363F;
  --line-strong: #3C4651;
  --accent: #B8915A;       /* ottone */
  --accent-hi: #CFA973;
  --accent-ink: #1A1F24;

  /* Type */
  --f-display: "Inter Tight", "Inter", system-ui, -apple-system, sans-serif;
  --f-body: "Inter", system-ui, -apple-system, sans-serif;
  --f-mono: "JetBrains Mono", ui-monospace, "SF Mono", Menlo, monospace;

  /* Density */
  --pad-x: clamp(20px, 5vw, 96px);
  --pad-y: clamp(80px, 11vw, 180px);
  --maxw: 1440px;

  /* Motion */
  --ease: cubic-bezier(.22,.61,.36,1);
}

/* Light mode */
:root[data-theme="light"] {
  --bg: #F2EFE9;          /* off-white caldo, leggermente avorio */
  --bg-elev: #ECE8E1;
  --bg-elev-2: #E5E0D6;
  --fg: #1A1F24;
  --fg-dim: #4A535C;
  --fg-mute: #7A828B;
  --line: #D8D2C5;
  --line-strong: #BFB7A6;
  --accent: #8E6A3A;
  --accent-hi: #B8915A;
  --accent-ink: #F2EFE9;
}

/* Density tweak */
:root[data-density="compact"] {
  --pad-y: clamp(60px, 8vw, 130px);
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--f-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  font-feature-settings: "ss01", "cv11";
  overflow-x: hidden;
}

::selection { background: var(--accent); color: var(--accent-ink); }

a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; }

/* ============ Layout helpers ============ */
.container {
  max-width: var(--maxw);
  margin: 0 auto;
  padding-left: var(--pad-x);
  padding-right: var(--pad-x);
}
.section {
  padding-top: var(--pad-y);
  padding-bottom: var(--pad-y);
  position: relative;
}
.section + .section { border-top: 1px solid var(--line); }

/* ============ Microcomponents ============ */
.eyebrow {
  font-family: var(--f-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--fg-mute);
  display: inline-flex;
  align-items: center;
  gap: 10px;
}
.eyebrow::before {
  content: "";
  display: inline-block;
  width: 18px;
  height: 1px;
  background: var(--fg-mute);
}
.mono { font-family: var(--f-mono); font-feature-settings: "tnum"; }

.h-display {
  font-family: var(--f-display);
  font-weight: 600;
  letter-spacing: -0.025em;
  line-height: 0.98;
  margin: 0;
}
.h-section {
  font-family: var(--f-display);
  font-weight: 600;
  font-size: clamp(36px, 5vw, 68px);
  letter-spacing: -0.02em;
  line-height: 1.02;
  margin: 0 0 0.4em;
}
.lede {
  font-size: clamp(17px, 1.4vw, 21px);
  line-height: 1.5;
  color: var(--fg-dim);
  max-width: 60ch;
  margin: 0;
}

/* ============ Buttons ============ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 16px 22px;
  border-radius: 2px;
  border: 1px solid transparent;
  font-size: 14px;
  font-weight: 500;
  letter-spacing: -0.005em;
  background: transparent;
  color: var(--fg);
  transition: all 0.25s var(--ease);
  text-decoration: none;
  white-space: nowrap;
}
.btn-primary {
  background: var(--accent);
  color: var(--accent-ink);
  border-color: var(--accent);
}
.btn-primary:hover {
  background: var(--accent-hi);
  border-color: var(--accent-hi);
  transform: translateY(-1px);
}
.btn-ghost {
  border-bottom: 1px solid var(--line-strong);
  border-radius: 0;
  padding: 8px 0;
  gap: 10px;
}
.btn-ghost:hover { border-bottom-color: var(--accent); color: var(--accent); }
.btn .arr { transition: transform 0.25s var(--ease); display: inline-block; }
.btn:hover .arr { transform: translateX(4px); }

/* ============ Nav ============ */
.nav {
  position: fixed; top: 0; left: 0; right: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px var(--pad-x);
  background: color-mix(in oklab, var(--bg) 88%, transparent);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s var(--ease);
}
.nav.is-scrolled { border-bottom-color: var(--line); }
.nav-brand {
  display: flex; align-items: center; gap: 10px;
  font-family: var(--f-display);
  font-weight: 600;
  letter-spacing: -0.01em;
  font-size: 18px;
}
.nav-brand .mark {
  width: 22px; height: 22px;
  display: grid; place-items: center;
  position: relative;
}
.nav-brand .mark svg { width: 100%; height: 100%; display: block; }
.nav-links {
  display: flex; gap: 32px;
  font-size: 13px;
  color: var(--fg-dim);
}
.nav-links a:hover { color: var(--fg); }
.nav-cta { display: flex; align-items: center; gap: 16px; }
.nav-status {
  font-family: var(--f-mono);
  font-size: 11px;
  color: var(--fg-mute);
  letter-spacing: 0.04em;
  display: flex; align-items: center; gap: 8px;
}
.nav-status .dot {
  width: 7px; height: 7px; border-radius: 50%;
  background: #5FA67A;
  box-shadow: 0 0 0 3px color-mix(in oklab, #5FA67A 25%, transparent);
}
@media (max-width: 800px) {
  .nav-links { display: none; }
  .nav-status { display: none; }
}

/* ============ Hero ============ */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  position: relative;
  padding-top: 120px;
  padding-bottom: 60px;
  overflow: hidden;
}
#hero-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  opacity: 0.55;
  pointer-events: none;
}
.hero-fallback {
  position: absolute; inset: 0;
  display: none;
  background: radial-gradient(ellipse at 70% 40%, color-mix(in oklab, var(--accent) 8%, transparent) 0%, transparent 60%);
}
@media (max-width: 768px) {
  #hero-canvas { display: none; }
  .hero-fallback { display: block; }
}
.hero-inner {
  position: relative;
  z-index: 2;
  display: grid;
  gap: clamp(40px, 6vw, 72px);
}
.hero-meta {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 24px;
  flex-wrap: wrap;
  font-family: var(--f-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--fg-mute);
  text-transform: uppercase;
  border-top: 1px solid var(--line);
  padding-top: 18px;
}
.hero-meta b { color: var(--fg-dim); font-weight: 500; }
.hero-headline {
  font-size: clamp(56px, 9.2vw, 168px);
}
.hero-headline .em {
  color: var(--accent);
  font-style: normal;
}
.hero-headline .num {
  font-family: var(--f-mono);
  font-feature-settings: "tnum";
  font-weight: 500;
  letter-spacing: -0.04em;
}
.hero-sub {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: clamp(24px, 4vw, 80px);
  align-items: end;
}
@media (max-width: 800px) {
  .hero-sub { grid-template-columns: 1fr; }
}
.hero-sub p {
  font-size: clamp(16px, 1.4vw, 20px);
  line-height: 1.45;
  color: var(--fg-dim);
  max-width: 50ch;
  margin: 0;
}
.hero-actions {
  display: flex; gap: 18px; align-items: center; flex-wrap: wrap;
}
.hero-stats {
  display: flex;
  gap: clamp(28px, 4vw, 64px);
  flex-wrap: wrap;
}
.stat {
  display: flex; flex-direction: column; gap: 6px;
}
.stat .v {
  font-family: var(--f-mono);
  font-feature-settings: "tnum";
  font-size: clamp(20px, 2.1vw, 28px);
  color: var(--fg);
  letter-spacing: -0.02em;
}
.stat .v .acc { color: var(--accent); }
.stat .l {
  font-family: var(--f-mono);
  font-size: 10.5px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--fg-mute);
}

/* ============ Promessa ============ */
.promise-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: clamp(40px, 6vw, 96px);
  align-items: start;
}
@media (max-width: 900px) {
  .promise-grid { grid-template-columns: 1fr; }
}
/* Promise aside (colonna sinistra del .promise-grid) */
.promise-aside {
  display: grid;
  gap: 28px;
  align-content: start;
  position: relative;
}

/* CAD diagram (3 nodi tecnici, blueprint-feel) */
.cad-diagram {
  width: 100%;
  max-width: 440px;
  margin-top: 8px;
}
.cad-diagram svg {
  width: 100%;
  height: auto;
  display: block;
  overflow: visible;
}
.cad-diagram #cad-grid path {
  stroke: var(--line);
  stroke-width: 0.5;
  fill: none;
}
/* Easing personalizzato: snappy con leggero settle */
.cad-diagram { --cad-ease: cubic-bezier(.22, .9, .3, 1); --cad-ease-spring: cubic-bezier(.34, 1.15, .42, 1); }

.cad-diagram .cad-bg {
  fill: url(#cad-grid);
  opacity: 0;
  transition: opacity .35s var(--cad-ease) 0s;
}
.cad-diagram .cad-grid-border {
  fill: none;
  stroke: var(--line);
  stroke-width: 0.5;
  opacity: 0;
  transition: opacity .35s var(--cad-ease) 0s;
}
.promise-aside.in .cad-grid-border { opacity: 0.55; }
.cad-diagram .cad-frame {
  fill: none;
  stroke: var(--fg-mute);
  stroke-width: 1;
  stroke-linecap: square;
  opacity: 0;
  transition: opacity .3s var(--cad-ease) .05s;
}
.cad-diagram .cad-coord {
  font-family: var(--f-mono);
  font-size: 9px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  fill: var(--fg-mute);
  opacity: 0;
  transition: opacity .3s var(--cad-ease) .1s;
}
.cad-diagram .cad-spine {
  fill: none;
  stroke: var(--fg-mute);
  stroke-width: 1;
  stroke-dasharray: 320;
  stroke-dashoffset: 320;
  transition: stroke-dashoffset .55s var(--cad-ease) .15s;
}
.cad-diagram .cad-tick {
  stroke: var(--fg-mute);
  stroke-width: 1;
  opacity: 0;
  transition: opacity .25s var(--cad-ease) .25s;
}
.cad-diagram .cad-arm {
  fill: none;
  stroke: var(--fg-dim);
  stroke-width: 1.2;
  stroke-linejoin: miter;
  stroke-linecap: square;
  stroke-dasharray: 260;
  stroke-dashoffset: 260;
  transition: stroke-dashoffset .42s var(--cad-ease);
}
.cad-diagram .cad-ring {
  fill: var(--bg);
  stroke: var(--accent);
  stroke-width: 1.4;
  opacity: 0;
  transform-origin: center;
  transform-box: fill-box;
  transform: scale(0.4);
  transition: opacity .25s var(--cad-ease), transform .35s var(--cad-ease-spring);
}
.cad-diagram .cad-dot {
  fill: var(--accent);
  opacity: 0;
  transform-origin: center;
  transform-box: fill-box;
  transform: scale(0.2);
  transition: opacity .2s var(--cad-ease), transform .25s var(--cad-ease-spring);
}
.cad-diagram .cad-target {
  fill: var(--bg);
  stroke: var(--fg-mute);
  stroke-width: 1;
  opacity: 0;
  transform-origin: center;
  transform-box: fill-box;
  transform: scale(0.6);
  transition: opacity .25s var(--cad-ease), transform .3s var(--cad-ease-spring);
}
.cad-diagram .cad-tag {
  font-family: var(--f-mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  fill: var(--fg);
  opacity: 0;
  transform-origin: left center;
  transform-box: fill-box;
  transform: translateX(-6px);
  transition: opacity .28s var(--cad-ease), transform .35s var(--cad-ease);
}
.cad-diagram .cad-idx {
  font-family: var(--f-mono);
  font-size: 10px;
  letter-spacing: 0.06em;
  fill: var(--fg-mute);
  opacity: 0;
  transition: opacity .25s var(--cad-ease);
}

/* In-view sequence — più snappy, totale ~1.55s con overlap */
.promise-aside.in .cad-bg { opacity: 0.55; }
.promise-aside.in .cad-frame { opacity: 1; }
.promise-aside.in .cad-coord { opacity: 1; }
.promise-aside.in .cad-spine { stroke-dashoffset: 0; }
.promise-aside.in .cad-tick { opacity: 1; }

/* Node block 1 — parte mentre la spine sta finendo */
.promise-aside.in .cad-ring.r1   { opacity: 1; transform: scale(1); transition-delay: .55s; }
.promise-aside.in .cad-dot.d1    { opacity: 1; transform: scale(1); transition-delay: .65s; }
.promise-aside.in .cad-idx.i1    { opacity: 1; transition-delay: .60s; }
.promise-aside.in .cad-arm.a1    { stroke-dashoffset: 0; transition-delay: .70s; }
.promise-aside.in .cad-target.tg1{ opacity: 1; transform: scale(1); transition-delay: 1.00s; }
.promise-aside.in .cad-tag.g1    { opacity: 1; transform: translateX(0); transition-delay: 1.05s; }

/* Node block 2 — overlap di 200ms con block 1 */
.promise-aside.in .cad-ring.r2   { opacity: 1; transform: scale(1); transition-delay: .85s; }
.promise-aside.in .cad-dot.d2    { opacity: 1; transform: scale(1); transition-delay: .95s; }
.promise-aside.in .cad-idx.i2    { opacity: 1; transition-delay: .90s; }
.promise-aside.in .cad-arm.a2    { stroke-dashoffset: 0; transition-delay: 1.00s; }
.promise-aside.in .cad-target.tg2{ opacity: 1; transform: scale(1); transition-delay: 1.30s; }
.promise-aside.in .cad-tag.g2    { opacity: 1; transform: translateX(0); transition-delay: 1.35s; }

/* Node block 3 */
.promise-aside.in .cad-ring.r3   { opacity: 1; transform: scale(1); transition-delay: 1.15s; }
.promise-aside.in .cad-dot.d3    { opacity: 1; transform: scale(1); transition-delay: 1.25s; }
.promise-aside.in .cad-idx.i3    { opacity: 1; transition-delay: 1.20s; }
.promise-aside.in .cad-arm.a3    { stroke-dashoffset: 0; transition-delay: 1.30s; }
.promise-aside.in .cad-target.tg3{ opacity: 1; transform: scale(1); transition-delay: 1.60s; }
.promise-aside.in .cad-tag.g3    { opacity: 1; transform: translateX(0); transition-delay: 1.65s; }

/* Anim disabled */
:root[data-anim="off"] .cad-diagram .cad-bg,
:root[data-anim="off"] .cad-diagram .cad-frame,
:root[data-anim="off"] .cad-diagram .cad-coord,
:root[data-anim="off"] .cad-diagram .cad-tick,
:root[data-anim="off"] .cad-diagram .cad-ring,
:root[data-anim="off"] .cad-diagram .cad-dot,
:root[data-anim="off"] .cad-diagram .cad-target,
:root[data-anim="off"] .cad-diagram .cad-tag,
:root[data-anim="off"] .cad-diagram .cad-idx { opacity: 1; transform: none; transition: none; }
:root[data-anim="off"] .cad-diagram .cad-spine,
:root[data-anim="off"] .cad-diagram .cad-arm { stroke-dashoffset: 0; transition: none; }
@media (prefers-reduced-motion: reduce) {
  .cad-diagram .cad-bg, .cad-diagram .cad-frame, .cad-diagram .cad-coord,
  .cad-diagram .cad-tick, .cad-diagram .cad-ring, .cad-diagram .cad-dot,
  .cad-diagram .cad-target, .cad-diagram .cad-tag, .cad-diagram .cad-idx { opacity: 1; transform: none; transition: none; }
  .cad-diagram .cad-spine, .cad-diagram .cad-arm { stroke-dashoffset: 0; transition: none; }
}
.promise-aside .metric-display {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding-top: 8px;
  border-top: 1px solid var(--line);
}
.promise-aside .metric-num {
  font-family: var(--f-mono);
  font-feature-settings: "tnum";
  font-weight: 500;
  font-size: clamp(72px, 9vw, 132px);
  letter-spacing: -0.04em;
  line-height: 0.9;
  color: var(--accent);
  display: inline-flex;
  align-items: flex-start;
}
.promise-aside .metric-sign {
  display: inline-block;
  margin-right: 0.04em;
  color: var(--accent);
}
.promise-aside .metric-unit {
  font-size: 0.4em;
  align-self: center;
  margin-left: 0.08em;
  color: var(--accent);
  font-weight: 500;
}
.promise-aside .metric-tail {
  font-family: var(--f-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--fg-mute);
  align-self: end;
  padding-bottom: 14px;
}
.promise-aside .metric-line {
  margin: 0;
  font-size: 15px;
  line-height: 1.55;
  color: var(--fg-dim);
  max-width: 38ch;
}
.promise-aside .metric-stats {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0;
  border-top: 1px solid var(--line);
}
.promise-aside .metric-stats li {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: baseline;
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
}
.promise-aside .metric-stats li span {
  font-family: var(--f-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--fg-mute);
}
.promise-aside .metric-stats li b {
  font-family: var(--f-mono);
  font-feature-settings: "tnum";
  font-weight: 500;
  font-size: 16px;
  color: var(--fg);
  letter-spacing: -0.01em;
}
.promise-aside .metric-glyph {
  margin-top: 8px;
  height: 120px;
  position: relative;
}
.promise-aside .metric-glyph svg {
  width: 100%;
  height: 100%;
  display: block;
  overflow: visible;
}
.promise-aside .g-line {
  stroke: var(--line);
  stroke-width: 1;
  stroke-dasharray: 2 4;
}
.promise-aside .g-path {
  fill: none;
  stroke-width: 1.4;
  stroke-linejoin: miter;
  stroke-dasharray: 600;
  stroke-dashoffset: 600;
  transition: stroke-dashoffset 1.4s var(--ease);
}
.promise-aside .g-before { stroke: var(--fg-mute); }
.promise-aside .g-after  { stroke: var(--accent); stroke-width: 1.6; }
.promise-aside .g-dot {
  fill: var(--bg);
  stroke: var(--fg-mute);
  stroke-width: 1.4;
  opacity: 0;
  transition: opacity .4s var(--ease) 1.2s;
}
.promise-aside .g-dot.da { stroke: var(--accent); }
.promise-aside .g-tag {
  font-family: var(--f-mono);
  font-size: 9.5px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  fill: var(--fg-mute);
  opacity: 0;
  transition: opacity .5s var(--ease) 1s;
}
.promise-aside .g-tag-acc { fill: var(--accent); }
.promise-aside.in .g-path { stroke-dashoffset: 0; }
.promise-aside.in .g-path.g-after { transition-delay: 0.3s; }
.promise-aside.in .g-dot,
.promise-aside.in .g-tag { opacity: 1; }
:root[data-anim="off"] .promise-aside .g-path { stroke-dashoffset: 0; }
:root[data-anim="off"] .promise-aside .g-dot,
:root[data-anim="off"] .promise-aside .g-tag { opacity: 1; }
@media (prefers-reduced-motion: reduce) {
  .promise-aside .g-path { stroke-dashoffset: 0; transition: none; }
  .promise-aside .g-dot, .promise-aside .g-tag { opacity: 1; transition: none; }
}

.principles { display: grid; gap: 32px; }
/* Stagger animation, gestita da observer dedicato in app.js (data-stagger sul container) */
.principles[data-stagger] .principle {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity .7s var(--ease), transform .7s var(--ease);
}
.principles[data-stagger].in .principle { opacity: 1; transform: none; }
.principles[data-stagger].in .principle:nth-child(1) { transition-delay: 0ms; }
.principles[data-stagger].in .principle:nth-child(2) { transition-delay: 140ms; }
.principles[data-stagger].in .principle:nth-child(3) { transition-delay: 280ms; }
:root[data-anim="off"] .principles[data-stagger] .principle { opacity: 1; transform: none; transition: none; }
@media (prefers-reduced-motion: reduce) {
  .principles[data-stagger] .principle { opacity: 1; transform: none; transition: none; }
}
.principle { display: grid; grid-template-columns: 48px 1fr; gap: 18px; padding-bottom: 32px; border-bottom: 1px solid var(--line); }
.principle:last-child { border-bottom: 0; padding-bottom: 0; }
.principle .n {
  font-family: var(--f-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--fg-mute);
  padding-top: 4px;
}
.principle h4 {
  font-family: var(--f-display);
  font-weight: 600;
  font-size: 22px;
  letter-spacing: -0.01em;
  margin: 0 0 8px;
}
.principle p { margin: 0; color: var(--fg-dim); font-size: 15.5px; line-height: 1.55; }

/* ============ Servizi ============ */
.svc-head {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 24px;
  align-items: end;
  margin-bottom: clamp(40px, 5vw, 72px);
}
@media (max-width: 800px) {
  .svc-head { grid-template-columns: 1fr; }
}
.svc-head .lede { max-width: 48ch; }

.svc-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0;
  border-top: 1px solid var(--line);
}
.svc-card {
  border-bottom: 1px solid var(--line);
  border-right: 1px solid var(--line);
  padding: clamp(28px, 3vw, 44px);
  display: grid;
  grid-template-rows: auto auto auto 1fr auto;
  gap: 18px;
  position: relative;
  transition: background 0.3s var(--ease);
  background: transparent;
}
.svc-card:nth-child(2n) { border-right: 0; }
.svc-card:last-child {
  grid-column: 1 / -1;
  border-right: 0;
  background: var(--bg-elev);
}
@media (max-width: 800px) {
  .svc-grid { grid-template-columns: 1fr; }
  .svc-card { border-right: 0 !important; }
  .svc-card:last-child { grid-column: 1; }
}
.svc-card:hover { background: var(--bg-elev); }
.svc-card::after {
  content: "";
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 2px;
  background: var(--accent);
  transform: scaleY(0);
  transform-origin: top;
  transition: transform 0.4s var(--ease);
}
.svc-card:hover::after { transform: scaleY(1); }
.svc-card .num {
  font-family: var(--f-mono);
  font-size: 12px;
  color: var(--fg-mute);
  letter-spacing: 0.06em;
}
.svc-card h3 {
  font-family: var(--f-display);
  font-weight: 600;
  font-size: clamp(28px, 2.6vw, 38px);
  letter-spacing: -0.02em;
  line-height: 1.05;
  margin: 0;
}
.svc-card .outcome {
  font-size: 16px;
  color: var(--fg-dim);
  line-height: 1.5;
  margin: 0;
}
.svc-card ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 8px;
  border-top: 1px solid var(--line);
  padding-top: 18px;
}
.svc-card li {
  font-family: var(--f-mono);
  font-size: 12.5px;
  letter-spacing: -0.005em;
  color: var(--fg-dim);
  display: grid;
  grid-template-columns: 14px 1fr;
  gap: 10px;
  align-items: start;
}
.svc-card li::before {
  content: "+";
  color: var(--accent);
  font-family: var(--f-mono);
  font-size: 14px;
  line-height: 1.1;
}
.svc-card .meta {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  font-family: var(--f-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--fg-mute);
  border-top: 1px solid var(--line);
  padding-top: 16px;
}
.svc-card .meta b { color: var(--fg); font-weight: 500; text-transform: none; letter-spacing: -0.005em; font-size: 13px; display: block; margin-top: 4px; }

/* ============ Caso studio ============ */
.case {
  background: var(--bg-elev);
}
.case-card {
  border: 1px solid var(--line);
  background: var(--bg);
  padding: clamp(32px, 4vw, 56px);
  display: grid;
  gap: clamp(28px, 3vw, 44px);
}
.case-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 20px;
  flex-wrap: wrap;
  border-bottom: 1px solid var(--line);
  padding-bottom: 24px;
}
.case-head .id {
  font-family: var(--f-mono);
  font-size: 11px;
  color: var(--fg-mute);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.case-head h3 {
  font-family: var(--f-display);
  font-weight: 600;
  font-size: clamp(24px, 2.2vw, 32px);
  letter-spacing: -0.015em;
  margin: 6px 0 0;
}
.case-cols {
  display: grid;
  grid-template-columns: 1.1fr 1fr 1fr;
  gap: clamp(28px, 3vw, 56px);
}
@media (max-width: 900px) {
  .case-cols { grid-template-columns: 1fr; }
}
.case-col h4 {
  font-family: var(--f-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--fg-mute);
  margin: 0 0 14px;
  font-weight: 500;
}
.case-col p { margin: 0; color: var(--fg-dim); font-size: 15px; line-height: 1.55; }
.case-col dl { margin: 0; display: grid; gap: 22px; }
.case-col dt {
  font-family: var(--f-mono);
  font-size: 10.5px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--fg-mute);
  margin-bottom: 4px;
}
.case-col dd {
  margin: 0;
  font-family: var(--f-mono);
  font-feature-settings: "tnum";
  font-size: clamp(28px, 3vw, 42px);
  letter-spacing: -0.025em;
  color: var(--fg);
  line-height: 1;
}
.case-col dd .acc { color: var(--accent); }
.case-quote {
  border-top: 1px solid var(--line);
  padding-top: 28px;
  display: grid;
  grid-template-columns: 24px 1fr;
  gap: 18px;
  align-items: start;
}
.case-quote .q {
  font-family: var(--f-display);
  font-size: 32px;
  line-height: 1;
  color: var(--accent);
}
.case-quote blockquote {
  margin: 0;
  font-family: var(--f-display);
  font-size: clamp(19px, 1.7vw, 24px);
  line-height: 1.4;
  color: var(--fg);
  letter-spacing: -0.01em;
  font-weight: 500;
}
.case-quote cite {
  display: block;
  font-style: normal;
  font-family: var(--f-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--fg-mute);
  margin-top: 14px;
}

/* ============ Processo ============ */
.process-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.process-step {
  padding: clamp(28px, 3vw, 40px) clamp(20px, 2vw, 32px);
  border-right: 1px solid var(--line);
  display: grid;
  gap: 16px;
  position: relative;
}
.process-step:last-child { border-right: 0; }
@media (max-width: 800px) {
  .process-grid { grid-template-columns: 1fr; }
  .process-step { border-right: 0; border-bottom: 1px solid var(--line); }
  .process-step:last-child { border-bottom: 0; }
}
.process-step .n {
  font-family: var(--f-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--accent);
}
.process-step h4 {
  font-family: var(--f-display);
  font-weight: 600;
  font-size: 22px;
  letter-spacing: -0.01em;
  margin: 0;
}
.process-step .when {
  font-family: var(--f-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--fg-mute);
}
.process-step p { margin: 0; color: var(--fg-dim); font-size: 14.5px; line-height: 1.5; }

/* ============ Stack ============ */
.stack-row {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: clamp(28px, 4vw, 64px);
  align-items: center;
  padding: 32px 0;
  border-top: 1px solid var(--line);
}
.stack-row:last-child { border-bottom: 1px solid var(--line); }
@media (max-width: 800px) {
  .stack-row { grid-template-columns: 1fr; }
}
.stack-row .label {
  font-family: var(--f-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--fg-mute);
}
.stack-logos {
  display: flex;
  flex-wrap: wrap;
  gap: clamp(28px, 4vw, 56px);
  align-items: center;
}
.stack-logo {
  font-family: var(--f-display);
  font-weight: 600;
  font-size: 20px;
  letter-spacing: -0.015em;
  color: var(--fg-dim);
  transition: color 0.25s var(--ease);
  display: inline-flex; align-items: center; gap: 8px;
}
.stack-logo:hover { color: var(--fg); }
.stack-logo .sub {
  font-family: var(--f-mono);
  font-size: 10px;
  letter-spacing: 0.08em;
  color: var(--fg-mute);
  font-weight: 400;
}

/* ============ FAQ ============ */
.faq-grid {
  display: grid;
  grid-template-columns: 0.7fr 1.3fr;
  gap: clamp(40px, 6vw, 96px);
  align-items: start;
}
@media (max-width: 900px) { .faq-grid { grid-template-columns: 1fr; } }
.faq-list { display: grid; }
details.faq {
  border-top: 1px solid var(--line);
  padding: 22px 0;
}
details.faq:last-of-type { border-bottom: 1px solid var(--line); }
details.faq summary {
  list-style: none;
  cursor: pointer;
  display: grid;
  grid-template-columns: 36px 1fr 24px;
  align-items: center;
  gap: 14px;
  font-family: var(--f-display);
  font-weight: 500;
  font-size: clamp(17px, 1.4vw, 21px);
  letter-spacing: -0.01em;
  color: var(--fg);
}
details.faq summary::-webkit-details-marker { display: none; }
details.faq summary .n {
  font-family: var(--f-mono);
  font-size: 11px;
  color: var(--fg-mute);
  letter-spacing: 0.06em;
}
details.faq summary .ic {
  width: 16px; height: 16px;
  position: relative;
  transition: transform 0.3s var(--ease);
}
details.faq summary .ic::before,
details.faq summary .ic::after {
  content: "";
  position: absolute;
  background: var(--fg-dim);
  left: 0; top: 50%; width: 16px; height: 1px;
  transition: opacity 0.3s var(--ease);
}
details.faq summary .ic::after { transform: rotate(90deg); }
details.faq[open] summary .ic::after { opacity: 0; }
details.faq[open] summary .ic { transform: rotate(180deg); }
details.faq[open] summary { color: var(--accent); }
details.faq .answer {
  margin: 14px 0 4px 50px;
  color: var(--fg-dim);
  font-size: 15.5px;
  line-height: 1.6;
  max-width: 64ch;
}
details.faq .answer code {
  font-family: var(--f-mono);
  font-size: 12.5px;
  background: var(--bg-elev);
  padding: 2px 6px;
  border-radius: 2px;
  color: var(--fg);
}

/* ============ Form ============ */
.form-wrap {
  background: var(--bg-elev);
  border: 1px solid var(--line);
  padding: clamp(36px, 4vw, 64px);
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: clamp(40px, 5vw, 80px);
}
@media (max-width: 900px) { .form-wrap { grid-template-columns: 1fr; } }
.form-aside h3 {
  font-family: var(--f-display);
  font-weight: 600;
  font-size: clamp(28px, 3vw, 42px);
  line-height: 1.05;
  letter-spacing: -0.02em;
  margin: 0 0 18px;
}
.form-aside p { color: var(--fg-dim); margin: 0 0 28px; line-height: 1.55; }
.form-aside .what {
  display: grid; gap: 14px;
  border-top: 1px solid var(--line);
  padding-top: 24px;
}
.form-aside .what li {
  display: grid;
  grid-template-columns: 24px 1fr;
  gap: 10px;
  font-family: var(--f-mono);
  font-size: 12.5px;
  color: var(--fg-dim);
  align-items: start;
}
.form-aside .what li::before {
  content: "→";
  color: var(--accent);
  font-family: var(--f-mono);
}
.form-aside ul { list-style: none; padding: 0; margin: 0; }

form.contact { display: grid; gap: 24px; }
form.contact .row { display: grid; gap: 8px; }
form.contact label {
  font-family: var(--f-mono);
  font-size: 10.5px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--fg-mute);
}
form.contact label .req { color: var(--accent); }
form.contact input,
form.contact textarea {
  background: transparent;
  border: 0;
  border-bottom: 1px solid var(--line-strong);
  padding: 12px 0 14px;
  color: var(--fg);
  font-family: var(--f-body);
  font-size: 16px;
  outline: none;
  transition: border-color 0.25s var(--ease);
  resize: vertical;
}
form.contact input:focus,
form.contact textarea:focus {
  border-bottom-color: var(--accent);
}
form.contact textarea { min-height: 100px; }
form.contact .submit-row {
  display: flex; align-items: center; justify-content: space-between;
  gap: 20px; flex-wrap: wrap;
  border-top: 1px solid var(--line);
  padding-top: 20px;
  margin-top: 4px;
}
form.contact .privacy {
  font-family: var(--f-mono);
  font-size: 11px;
  letter-spacing: 0.02em;
  color: var(--fg-mute);
  max-width: 36ch;
}
form.contact .privacy a { color: var(--fg-dim); border-bottom: 1px solid var(--line); }
form.contact .ok {
  font-family: var(--f-mono);
  font-size: 12px;
  color: var(--accent);
  letter-spacing: 0.04em;
  display: none;
}
form.contact.is-ok .ok { display: block; }
form.contact.is-ok button[type="submit"] { display: none; }
form.contact.is-loading button[type="submit"] { opacity: .55; cursor: wait; pointer-events: none; }
form.contact.is-loading button[type="submit"] .arr { opacity: .4; }
form.contact.is-error::after {
  content: "Invio non riuscito. Apriamo il vostro client email come fallback…";
  display: block;
  font-family: var(--f-mono);
  font-size: 12px;
  color: #C97070;
  letter-spacing: 0.02em;
  margin-top: -8px;
}

/* ============ Footer ============ */
footer.foot {
  padding: clamp(56px, 6vw, 96px) var(--pad-x) 28px;
  border-top: 1px solid var(--line);
}
.foot-inner {
  max-width: var(--maxw);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: clamp(28px, 4vw, 60px);
}
@media (max-width: 800px) {
  .foot-inner { grid-template-columns: 1fr 1fr; }
  .foot-inner > div:first-child { grid-column: 1 / -1; }
}
.foot-brand .h-display { font-size: clamp(36px, 5vw, 56px); margin-bottom: 16px; }
.foot-brand p { color: var(--fg-dim); max-width: 36ch; font-size: 14px; }
.foot-col h5 {
  font-family: var(--f-mono);
  font-size: 10.5px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--fg-mute);
  margin: 0 0 16px;
  font-weight: 500;
}
.foot-col ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 10px; }
.foot-col a {
  font-size: 14px; color: var(--fg-dim);
  transition: color 0.2s var(--ease);
}
.foot-col a:hover { color: var(--accent); }
.foot-bottom {
  max-width: var(--maxw);
  margin: 56px auto 0;
  padding-top: 20px;
  border-top: 1px solid var(--line);
  display: flex;
  justify-content: space-between;
  gap: 16px; flex-wrap: wrap;
  font-family: var(--f-mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  color: var(--fg-mute);
}

/* ============ Scroll reveal ============ */
.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.8s var(--ease), transform 0.8s var(--ease);
}
.reveal.in { opacity: 1; transform: none; }
:root[data-anim="off"] .reveal { opacity: 1; transform: none; transition: none; }

/* Reduce motion */
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; }
}

/* ============ Tweaks panel custom (inline in nav, brand-coherent) ============ */
.alpi-tweaks {
  position: relative;
  display: inline-flex;
}
.alpi-tweaks .tk-toggle {
  background: transparent;
  border: 1px solid var(--line);
  color: var(--fg-dim);
  width: 50px;
  height: 50px;
  padding: 0;
  border-radius: 2px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: color .25s var(--ease), border-color .25s var(--ease), background .25s var(--ease);
}
.alpi-tweaks .tk-toggle:hover { color: var(--accent); border-color: var(--line-strong); }
.alpi-tweaks.is-open .tk-toggle { color: var(--accent); border-color: var(--accent); background: color-mix(in oklab, var(--accent) 10%, transparent); }
.alpi-tweaks .tk-panel {
  position: absolute;
  top: calc(100% + 10px);
  right: 0;
  width: 260px;
  background: var(--bg-elev);
  border: 1px solid var(--line);
  padding: 20px;
  display: grid;
  gap: 18px;
  opacity: 0;
  transform: translateY(-6px);
  pointer-events: none;
  visibility: hidden;
  transition: opacity 0.2s var(--ease), transform 0.2s var(--ease), visibility 0.2s;
}
.alpi-tweaks.is-open .tk-panel {
  opacity: 1;
  transform: none;
  pointer-events: auto;
  visibility: visible;
}
.alpi-tweaks .tk-row { display: grid; gap: 8px; }
.alpi-tweaks .tk-label {
  font-family: var(--f-mono);
  font-size: 10.5px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--fg-mute);
}
.alpi-tweaks .seg {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border: 1px solid var(--line);
  border-radius: 2px;
  overflow: hidden;
}
.alpi-tweaks .seg.two { grid-template-columns: repeat(2, 1fr); }
.alpi-tweaks .seg button {
  background: transparent;
  border: 0;
  color: var(--fg-dim);
  padding: 10px;
  font-family: var(--f-mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  border-right: 1px solid var(--line);
  transition: background 0.2s var(--ease);
}
.alpi-tweaks .seg button:last-child { border-right: 0; }
.alpi-tweaks .seg button:hover { color: var(--fg); }
.alpi-tweaks .seg button.is-active {
  background: var(--accent);
  color: var(--accent-ink);
}

/* Mobile: nascondi pannello tweaks per non comprimere la nav (è una preferenza power-user, non serve su mobile) */
@media (max-width: 800px) {
  .alpi-tweaks { display: none; }
}