/* =========================
   Premium Tokens
========================= */
:root {
  --black: #0b0d10;
  --white: #ffffff;

  --gray-950: #0b0d10;
  --gray-900: #12161c;
  --gray-850: #161b22;
  --gray-800: #1c2430;
  --gray-700: #2c3646;
  --gray-600: #4b5a70;
  --gray-500: #6d7c93;
  --gray-400: #9aa7bc;
  --gray-300: #c6cfdd;
  --gray-200: #e6eaf2;
  --gray-100: #f4f6fa;

  --accent: #6aa7ff;
  --accent-soft: rgba(106, 167, 255, 0.16);

  --max-width: 1180px;

  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 22px;

  --space-1: clamp(0.5rem, 0.4rem + 0.3vw, 0.75rem);
  --space-2: clamp(0.75rem, 0.6rem + 0.5vw, 1rem);
  --space-3: clamp(1rem, 0.8rem + 0.8vw, 1.5rem);
  --space-4: clamp(1.5rem, 1.1rem + 1.2vw, 2.25rem);
  --space-5: clamp(2rem, 1.5rem + 1.8vw, 3.25rem);
  --space-6: clamp(3rem, 2.2rem + 2.6vw, 4.5rem);

  --shadow-card: 0 14px 40px rgba(10, 14, 20, 0.10);
  --shadow-card-hover: 0 18px 60px rgba(10, 14, 20, 0.16);
  --shadow-header: 0 10px 30px rgba(10, 14, 20, 0.08);

  --font-sans: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont,
    "Segoe UI", Inter, Roboto, "Helvetica Neue", Arial, "Noto Sans",
    "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", sans-serif;

  --font-brand: "Josefin Sans", ui-sans-serif, system-ui, -apple-system,
    BlinkMacSystemFont, "Segoe UI", Inter, Roboto, "Helvetica Neue", Arial,
    "Noto Sans", sans-serif;

  --text: var(--gray-900);
  --text-muted: var(--gray-600);

  --ease: cubic-bezier(.2,.8,.2,1);
  --dur-2: 220ms;
}

/* =========================
   Reset + Base
========================= */
*,
*::before,
*::after { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  text-rendering: geometricPrecision;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  color: var(--text);
  background: var(--white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img, svg, video {
  max-width: 100%;
  height: auto;
  display: block;
}

a { color: inherit; text-decoration: none; }

:focus { outline: none; }
:focus-visible {
  outline: 3px solid var(--accent-soft);
  outline-offset: 3px;
}

::selection { background: rgba(106, 167, 255, 0.22); }

@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}

/* =========================
   Typography
========================= */
h1, h2, h3 {
  margin: 0 0 var(--space-2);
  line-height: 1.15;
  font-weight: 650;
  letter-spacing: -0.02em;
  color: inherit;
}

h1 {
  font-size: clamp(2.2rem, 1.6rem + 2.6vw, 3.3rem);
  letter-spacing: -0.035em;
  text-wrap: balance;
}

h2 {
  font-size: clamp(1.65rem, 1.2rem + 1.8vw, 2.35rem);
  letter-spacing: -0.03em;
  text-wrap: balance;
  text-align: center;
}

h3 {
  font-size: clamp(1.05rem, 0.98rem + 0.3vw, 1.15rem);
  letter-spacing: -0.01em;
}

p {
  margin: 0 0 var(--space-2);
  color: var(--gray-700);
}

.muted {
  color: var(--text-muted);
  font-weight: 450;
}

/* =========================
   Layout
========================= */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 clamp(1.1rem, 3vw, 1.8rem);
}

.section-light,
.section-dark { padding: var(--space-6) 0; }

.section-light {
  background: var(--white);
  color: var(--gray-900);
}

.section-dark {
  background:
    radial-gradient(1200px 600px at 20% 10%, rgba(106, 167, 255, 0.12), transparent 60%),
    radial-gradient(1000px 500px at 80% 20%, rgba(155, 140, 255, 0.10), transparent 55%),
    linear-gradient(180deg, #0b0d10 0%, #0b0d10 100%);
  color: var(--white);
}

.section-dark p,
.section-dark h1,
.section-dark h2,
.section-dark h3 { color: var(--white); }

.section-dark p { color: rgba(255, 255, 255, 0.78); }
.section-dark .muted { color: rgba(255, 255, 255, 0.62); }

/* =========================
   Grid
========================= */
.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-5);
  align-items: center;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-3);
}

/* =========================
   Header (premium)
========================= */
.site-header {
  position: sticky;
  top: 0;
  z-index: 60;
  background: rgba(255, 255, 255, 0.78);
  backdrop-filter: saturate(160%) blur(10px);
  -webkit-backdrop-filter: saturate(160%) blur(10px);
  border-bottom: 1px solid rgba(15, 23, 42, 0.08);
  box-shadow: var(--shadow-header);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 74px;
  gap: 1rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
}

.brand-name {
  font-family: var(--font-brand);
  font-weight: 500;
  letter-spacing: 0.02em;
  font-size: 1.05rem;
  color: var(--gray-900);
  line-height: 1;
}

.nav {
  display: flex;
  align-items: center;
  gap: clamp(0.8rem, 1.2vw, 1.5rem);
}

.nav-link {
  font-size: 0.95rem;
  color: rgba(18, 22, 28, 0.78);
  padding: 0.42rem 0.5rem;
  border-radius: 12px;
  transition: color var(--dur-2) var(--ease), background-color var(--dur-2) var(--ease), transform var(--dur-2) var(--ease);
}

.nav-link:hover {
  color: var(--gray-900);
  background: rgba(15, 23, 42, 0.05);
  transform: translateY(-1px);
}

.header-cta {
  display: flex;
  align-items: center;
}

/* Toggle button */
.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border-radius: 999px;
  border: 1px solid rgba(15, 23, 42, 0.12);
  background: rgba(255, 255, 255, 0.60);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  cursor: pointer;
  align-items: center;
  justify-content: center;
  transition: transform var(--dur-2) var(--ease), background-color var(--dur-2) var(--ease), border-color var(--dur-2) var(--ease);
}

.nav-toggle:hover {
  background: rgba(255, 255, 255, 0.82);
  border-color: rgba(15, 23, 42, 0.18);
  transform: translateY(-1px);
}

/* 3-line icon */
.nav-toggle-lines {
  width: 18px;
  height: 2px;
  border-radius: 999px;
  background: rgba(18, 22, 28, 0.82);
  position: relative;
  display: block;
  transition: transform var(--dur-2) var(--ease);
}

.nav-toggle-lines::before,
.nav-toggle-lines::after {
  content: "";
  position: absolute;
  left: 0;
  width: 18px;
  height: 2px;
  border-radius: 999px;
  background: rgba(18, 22, 28, 0.82);
  transition: transform var(--dur-2) var(--ease), opacity var(--dur-2) var(--ease);
}

.nav-toggle-lines::before { top: -6px; }
.nav-toggle-lines::after  { top:  6px; }

/* Mobile nav dropdown (hidden via [hidden]) */
.nav-mobile {
  display: grid;
  gap: 0.4rem;
  padding: 0.85rem 0 1.1rem;
  margin: 0 0 0.9rem;
  background: rgba(255, 255, 255, 0.86);
  border: 1px solid rgba(15, 23, 42, 0.10);
  border-radius: 16px;
  box-shadow: 0 22px 60px rgba(10, 14, 20, 0.14);
  backdrop-filter: saturate(160%) blur(12px);
  -webkit-backdrop-filter: saturate(160%) blur(12px);
}

.nav-mobile .nav-link {
  padding: 0.95rem 0.85rem;
  border-radius: 14px;
  font-weight: 650;
}

.nav-mobile .nav-link:hover {
  background: rgba(15, 23, 42, 0.06);
}

.nav-mobile .btn {
  width: 100%;
  justify-content: center;
  margin-top: 0.25rem;
}

/* Open state */
.site-header.is-open .nav-mobile {
  animation: navDropIn 180ms var(--ease) both;
}

.site-header.is-open .nav-toggle-lines {
  background: transparent;
}

.site-header.is-open .nav-toggle-lines::before {
  transform: translateY(6px) rotate(45deg);
}

.site-header.is-open .nav-toggle-lines::after {
  transform: translateY(-6px) rotate(-45deg);
}

@keyframes navDropIn {
  from { opacity: 0; transform: translateY(-6px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* Responsive header */
@media (max-width: 900px) {
  .nav { display: none; }
  .header-cta { display: none; } /* CTA nel menu mobile */
  .nav-toggle { display: inline-flex; }
  .header-inner { height: 70px; }
}

/* =========================
   Buttons
========================= */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  padding: 0.78rem 1.25rem;
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: 999px;
  cursor: pointer;
  user-select: none;
  white-space: nowrap;
  transform: translateZ(0);
  transition:
    transform var(--dur-2) var(--ease),
    box-shadow var(--dur-2) var(--ease),
    background-color var(--dur-2) var(--ease),
    border-color var(--dur-2) var(--ease),
    opacity var(--dur-2) var(--ease);
}

.btn:active { transform: translateY(1px); }

.btn-primary {
  background: linear-gradient(180deg, rgba(255,255,255,0.98), rgba(255,255,255,0.92));
  color: var(--gray-950);
  border: 1px solid rgba(255, 255, 255, 0.55);
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.12);
}

.section-light .btn-primary {
  background: linear-gradient(180deg, #0b0d10 0%, #111827 100%);
  color: var(--white);
  border-color: rgba(17, 24, 39, 0.65);
  box-shadow: 0 14px 34px rgba(10, 14, 20, 0.18);
}

.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 18px 50px rgba(10, 14, 20, 0.18);
}

.section-light .btn-primary:hover {
  box-shadow: 0 20px 60px rgba(10, 14, 20, 0.24);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.06);
  color: rgba(255, 255, 255, 0.92);
  border: 1px solid rgba(255, 255, 255, 0.22);
}

.section-light .btn-secondary {
  background: rgba(15, 23, 42, 0.04);
  color: var(--gray-900);
  border-color: rgba(15, 23, 42, 0.14);
}

.btn-secondary:hover {
  transform: translateY(-1px);
  background: rgba(255, 255, 255, 0.10);
  border-color: rgba(255, 255, 255, 0.32);
}

.section-light .btn-secondary:hover {
  background: rgba(15, 23, 42, 0.06);
  border-color: rgba(15, 23, 42, 0.18);
}

/* =========================
   Hero
========================= */
.hero {
  padding: clamp(4.5rem, 5vw, 6.5rem) 0 clamp(3.5rem, 4vw, 5.5rem);
  position: relative;
  overflow: hidden;
}

.hero-subtitle {
  max-width: 62ch;
  font-size: clamp(1.02rem, 0.96rem + 0.35vw, 1.12rem);
  color: rgba(255, 255, 255, 0.80);
  margin-bottom: var(--space-2);
}

.hero-approach {
  font-size: 0.95rem;
  color: rgba(255, 255, 255, 0.62);
  margin-bottom: var(--space-4);
}

.hero-cta {
  display: flex;
  gap: var(--space-2);
  flex-wrap: wrap;
}

.hero-image {
  margin: 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.10);
}

.hero-image img {
  width: 100%;
  height: auto;
  transform: scale(1.01);
}

/* =========================
   One-liners
========================= */
.one-liner {
  position: relative;
  padding: clamp(1.15rem, 1rem + 0.9vw, 1.75rem);
  border-radius: var(--radius-md);
  background: linear-gradient(180deg, rgba(244,246,250,0.9), rgba(255,255,255,1));
  border: 1px solid rgba(15, 23, 42, 0.10);
  box-shadow: 0 14px 40px rgba(10, 14, 20, 0.08);
  transition: transform var(--dur-2) var(--ease), box-shadow var(--dur-2) var(--ease), border-color var(--dur-2) var(--ease);
}

.one-liner:hover {
  transform: translateY(-2px);
  box-shadow: 0 18px 60px rgba(10, 14, 20, 0.12);
  border-color: rgba(15, 23, 42, 0.14);
}

.one-liner p { margin: 0; color: var(--gray-700); font-size: 0.98rem; line-height: 1.55; }
.one-liner strong { display: inline-block; margin-bottom: 0.25rem; color: var(--gray-900); font-weight: 700; letter-spacing: -0.015em; }

/* =========================
   Cards
========================= */
.card {
  padding: var(--space-4);
  border-radius: var(--radius-md);
  background: linear-gradient(180deg, rgba(255,255,255,0.95), rgba(255,255,255,1));
  border: 1px solid rgba(15, 23, 42, 0.10);
  box-shadow: var(--shadow-card);
  font-size: 0.98rem;
  transition: transform var(--dur-2) var(--ease), box-shadow var(--dur-2) var(--ease), border-color var(--dur-2) var(--ease);
}

.card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-card-hover);
  border-color: rgba(15, 23, 42, 0.14);
}

.card p { color: var(--gray-600); }
.muted-card { background: linear-gradient(180deg, rgba(244,246,250,0.7), rgba(255,255,255,1)); }

/* =========================
   Portfolio text alignment
========================= */
#portfolio p {
  max-width: 72ch;
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}

/* =========================
   "Come lavoro" image
========================= */
.hero-image-single {
  margin-top: var(--space-4);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid rgba(15, 23, 42, 0.10);
  box-shadow: 0 18px 60px rgba(10, 14, 20, 0.10);
}

.hero-image-single img {
  width: 100%;
  height: auto;
  display: block;
}

/* =========================
   Proof
========================= */
.proof-card {
  padding: var(--space-4);
  border-radius: var(--radius-md);
  text-align: center;
  border: 1px solid rgba(255, 255, 255, 0.14);
  background: rgba(255, 255, 255, 0.04);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  transition: transform var(--dur-2) var(--ease), border-color var(--dur-2) var(--ease), background-color var(--dur-2) var(--ease);
}

.proof-card:hover {
  transform: translateY(-2px);
  border-color: rgba(255, 255, 255, 0.22);
  background: rgba(255, 255, 255, 0.06);
}

.proof-role { font-weight: 700; margin-bottom: 0.35rem; }
.proof-desc { margin: 0; }

/* =========================
   Footer
========================= */
.site-footer {
  background: var(--black);
  padding: var(--space-4) 0;
  font-size: 0.9rem;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.site-footer p {
  margin: 0;
  color: rgba(255, 255, 255, 0.72);
  text-align: center;
}

/* =========================
   Responsive
========================= */
@media (max-width: 1024px) {
  .grid-3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 768px) {
  .grid-2 { grid-template-columns: 1fr; gap: var(--space-4); }
  .btn { width: 100%; justify-content: center; }

  /* Mobile hero background */
  .hero-image { display: none; }
  .hero {
    background-image: url("../img/andrea-saitta.png");
    background-repeat: no-repeat;
    background-size: cover;
    background-position: 50% 35%;
    min-height: 100vh;
    display: flex;
    align-items: flex-end;
    padding-top: 0;
    padding-bottom: 2.5rem;
  }
  .hero::before {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(11, 13, 16, 0.20) 0%, rgba(11, 13, 16, 0.75) 45%, rgba(11, 13, 16, 0.88) 100%);
    z-index: 0;
  }
  .hero .container { position: relative; z-index: 1; }
}

/* =========================
   FIX MENU (override final)
   Incolla in fondo al CSS
========================= */

/* 1) In caso tu abbia vecchie regole, le neutralizziamo */
.nav-links { display: none !important; } /* se esiste da vecchio menu */
.mobile-menu { display: none !important; } /* se esiste da vecchio menu */

/* 2) Assicuriamo click sul toggle (z-index/pointer-events) */
.site-header { position: sticky; overflow: visible; }
.nav-toggle { position: relative; z-index: 9999; pointer-events: auto; }

/* 3) Il nav mobile DEVE poter comparire quando hidden viene rimosso */
/* Nav mobile: visibile SOLO quando hidden è rimosso */
.nav-mobile {
  position: relative;
  z-index: 9998;
}

/* Regola UNIVERSALE: quando hidden -> sparisce */
.nav-mobile[hidden] {
  display: none !important;
}

/* Quando non hidden -> display grid */
.nav-mobile:not([hidden]) {
  display: grid;
}


/* 4) Su desktop: nascondi nav-mobile anche se qualcuno toglie hidden per sbaglio */
@media (min-width: 901px) {
  .nav-mobile { display: none !important; }
}

/* 5) Su mobile: nascondi nav desktop e CTA desktop, mostra toggle */
@media (max-width: 900px) {
  .site-header .nav { display: none !important; }
  .site-header .header-cta { display: none !important; }
  .site-header .nav-toggle { display: inline-flex !important; }
}

body.nav-open {
  overflow: hidden;
}