@charset "UTF-8";
/* Massimo Bettin — profilo one page
   Palette: ink / surface / scan (verde console) / evidenza (giallo) / bone
   Stessi colori del pre-ingresso: il sito è la continuazione della scansione.
   Signature: il "decode" — testo che si risolve da glifi a parole. */

@layer reset, tokens, base, layout, components, motion, responsive;

/* ─────────────────────────── RESET ─────────────────────────── */
@layer reset {
  *, *::before, *::after { box-sizing: border-box; }
  * { margin: 0; }
  html { -webkit-text-size-adjust: 100%; }
  img, canvas, svg { display: block; max-width: 100%; }
  button { font: inherit; color: inherit; background: none; border: 0; }
  a { color: inherit; }
  ul, ol { list-style: none; padding: 0; }
  address { font-style: normal; }
}

/* ─────────────────────────── TOKENS ────────────────────────── */
@layer tokens {
  :root {
    color-scheme: dark;

    --ink:        #04070a;
    --surface:    #0b1317;
    --surface-2:  #0e181c;
    --scan:       #ffd23f;   /* giallo (come i numeri delle fasi): accento primario */
    --evidenza:   #ffd23f;   /* giallo: unico secondo segnale (numeri delle fasi) */
    --brand:      #ffd23f;   /* marchio MB nell'orbita: giallo come l'accento */
    --bone:       #e6f0ea;
    --phosphor:   var(--scan);   /* alias storico, usato in tutto il foglio */

    --dim:   color-mix(in oklch, var(--bone) 58%, var(--ink));
    --dimmer:color-mix(in oklch, var(--bone) 34%, var(--ink));
    --line:  color-mix(in oklch, var(--phosphor) 16%, transparent);
    --line-2:color-mix(in oklch, var(--phosphor) 30%, transparent);
    --glow:  color-mix(in oklch, var(--phosphor) 45%, transparent);

    --display: "Ubuntu", "Ubuntu Sans", "Segoe UI", system-ui, sans-serif;
    --body: "Ubuntu", "Ubuntu Sans", system-ui, -apple-system, "Helvetica Neue", sans-serif;
    --mono: "Ubuntu Mono", "DejaVu Sans Mono", ui-monospace, "SF Mono", monospace;

    --step--1: clamp(.84rem, .82rem + .1vw, .9rem);
    --step-0:  clamp(1.05rem, 1rem + .2vw, 1.14rem);
    --step-1:  clamp(1.16rem, 1.08rem + .4vw, 1.4rem);
    --step-2:  clamp(1.5rem, 1.3rem + 1vw, 2.1rem);
    --step-3:  clamp(2rem, 1.6rem + 2.2vw, 3.4rem);
    --step-4:  clamp(2.4rem, 1.7rem + 4vw, 5.2rem);

    --gutter: clamp(1.25rem, 4vw, 3rem);
    --wrap: 74rem;
    --rail: 0px;
    --sec-y: clamp(4.5rem, 9vh + 3rem, 9rem);
    --r: 3px;
  }
}

/* ──────────────────────────── BASE ─────────────────────────── */
@layer base {
  html { scroll-behavior: smooth; }
  @media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

  body {
    background: var(--ink);
    color: var(--bone);
    font: 400 var(--step-0)/1.65 var(--body);
    font-synthesis-weight: none;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
    /* reticolo verticale appena percettibile: il "sotto" della pagina */
    background-image:
      repeating-linear-gradient(90deg,
        color-mix(in oklch, var(--phosphor) 4%, transparent) 0 1px,
        transparent 1px 92px);
  }

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

  :where(a, button, [tabindex]):focus-visible {
    outline: 2px solid var(--phosphor);
    outline-offset: 3px;
    border-radius: 2px;
  }

  h1, h2, h3 { font-family: var(--display); font-weight: 700; line-height: 1.06; letter-spacing: -.02em; text-wrap: balance; }
  p { text-wrap: pretty; }
  strong { color: var(--bone); font-weight: 500; }
  em { font-style: normal; color: var(--phosphor); }

  .skip {
    position: fixed; inset-inline-start: -100vw; top: .75rem; z-index: 99;
    background: var(--phosphor); color: var(--ink); padding: .6rem 1rem;
    font: 600 var(--step--1) var(--mono);
    &:focus { inset-inline-start: .75rem; }
  }

  .sr-live {
    position: fixed; inset-inline: 0; bottom: 1.25rem; z-index: 60;
    text-align: center; font: 600 var(--step--1) var(--mono);
    letter-spacing: .08em; text-transform: uppercase;
    color: var(--phosphor); pointer-events: none;
    opacity: 0; transition: opacity .25s;
    &:not(:empty) { opacity: 1; }
    &::before { content: "▍ "; }
  }
}

/* ─────────────────────────── LAYOUT ───────────────────────── */
@layer layout {
  .wrap {
    width: min(100% - var(--gutter) * 2, var(--wrap));
    margin-inline: auto;
    padding-inline-start: var(--rail);
  }

  .sec {
    padding-block: var(--sec-y);
    position: relative;
    border-top: 1px solid var(--line);
  }
  .sec--alt { background: var(--surface); }
  .sec--contact {
    background:
      radial-gradient(120% 90% at 15% 0%, color-mix(in oklch, var(--phosphor) 9%, transparent), transparent 60%),
      var(--surface-2);
  }

  .sec__head { max-width: 32rem; }
  .sec__head--wide { max-width: 44rem; margin-bottom: clamp(2.5rem, 5vw, 4rem); }
  .sec__note { color: var(--dim); margin-top: 1.1rem; max-width: 34rem; }

  /* i grid a colonna singola vanno vincolati: la colonna "auto" si dimensiona
     sul max-content del testo e trascina fuori i figli sotto ~1000px */
  .hero__inner, .hero__h1, .prose, .ticks, .card, .step,
  .contact__row, .stack > div, .cards, .steps, .stack, .contact {
    grid-template-columns: minmax(0, 1fr);
  }

  .sec__grid {
    display: grid;
    gap: clamp(2rem, 4vw, 3.5rem);
    grid-template-columns: 1fr;
  }
  .sec__split {
    display: grid;
    gap: clamp(2.5rem, 5vw, 4.5rem);
    grid-template-columns: 1fr;
    align-items: start;
  }
}

/* ────────────────────────── COMPONENTI ────────────────────── */
@layer components {

  /* — rail — */
  .rail { display: none; }

  /* — etichette — */
  .eyebrow {
    font: 600 var(--step--1) var(--mono);
    letter-spacing: .16em; text-transform: uppercase;
    color: var(--phosphor);
    display: flex; align-items: center; gap: .7rem;
    &::before {
      content: ""; inline-size: .5rem; block-size: .5rem; flex: none;
      background: var(--phosphor);
      box-shadow: 0 0 12px var(--glow);
    }
  }

  .h2 { font-size: var(--step-3); margin-top: 1.4rem; }

  /* — hero — */
  .hero {
    position: relative;
    min-block-size: min(100svh, 54rem);
    /* colonna definita: senza questo .wrap risolverebbe la % sul max-content e sfonderebbe */
    display: grid; grid-template-columns: minmax(0, 1fr); align-content: center;
    padding-block: clamp(6rem, 14vh, 10rem) clamp(4rem, 10vh, 7rem);
    isolation: isolate;
    overflow: clip;
  }
  .hero__rain {
    position: absolute; inset: 0; z-index: -1;
    inline-size: 100%; block-size: 100%;
    opacity: .5;
    mask-image:
      radial-gradient(115% 85% at 78% 12%, #000 0%, transparent 72%),
      linear-gradient(#000 55%, transparent 96%);
    mask-composite: intersect;
  }
  .hero::after { /* velo che tiene leggibile il testo sopra la pioggia */
    content: ""; position: absolute; inset: 0; z-index: -1;
    background: linear-gradient(100deg, var(--ink) 18%, color-mix(in oklch, var(--ink) 72%, transparent) 55%, transparent);
    pointer-events: none;
  }
  .hero__inner { display: grid; gap: clamp(1.5rem, 3vw, 2.25rem); }

  .hero__h1 { display: grid; gap: clamp(1rem, 2vw, 1.5rem); }
  .hero__name {
    font: 600 var(--step--1) var(--mono);
    letter-spacing: .3em; text-transform: uppercase;
    color: var(--dim);
  }
  .hero__claim {
    display: block;
    font-size: var(--step-4);
    max-width: 26ch;
    & em { text-shadow: 0 0 28px var(--glow); }
  }
  .hero__lead { max-width: 56ch; color: var(--dim); font-size: var(--step-1); line-height: 1.55; }

  .hero__cta { display: flex; flex-wrap: wrap; gap: .75rem; }
  .btn {
    --btn-fg: var(--phosphor);
    display: inline-flex; align-items: center; gap: .55rem;
    padding: .85rem 1.4rem;
    font: 600 var(--step--1) var(--mono);
    letter-spacing: .1em; text-transform: uppercase;
    text-decoration: none;
    color: var(--btn-fg);
    border: 1px solid var(--line-2);
    border-radius: var(--r);
    background: color-mix(in oklch, var(--phosphor) 5%, transparent);
    transition: background .2s, border-color .2s, color .2s, translate .2s;
    & span { transition: translate .2s; }
    &:hover {
      background: color-mix(in oklch, var(--phosphor) 14%, transparent);
      border-color: var(--phosphor);
      & span { translate: 4px 0; }
    }
  }
  .btn--solid {
    background: var(--phosphor); color: var(--ink); border-color: var(--phosphor);
    box-shadow: 0 0 0 0 var(--glow);
    &:hover {
      background: color-mix(in oklch, var(--phosphor) 88%, #fff);
      box-shadow: 0 0 34px -6px var(--glow);
    }
  }

  .hero__meta {
    display: grid; gap: 1.25rem 2.5rem;
    grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr));
    max-width: 62rem;
    padding-top: clamp(1.5rem, 3vw, 2.5rem);
    border-top: 1px solid var(--line);
    & dt {
      font: 600 var(--step--1) var(--mono);
      letter-spacing: .14em; text-transform: uppercase; color: var(--dimmer);
      margin-bottom: .4rem;
    }
    & dd { color: var(--bone); font-size: var(--step--1); line-height: 1.5; }
  }
  .pulse {
    display: inline-block; inline-size: .5rem; block-size: .5rem; margin-inline-end: .45rem;
    border-radius: 50%; background: var(--phosphor); box-shadow: 0 0 0 0 var(--glow);
    animation: pulse 2.4s ease-out infinite;
  }

  /* — ritratto: duotone fosforo, si "sblocca" al passaggio — */
  .portrait {
    position: relative;
    border: 1px solid var(--line-2);
    border-radius: var(--r);
    background: var(--surface);
    padding: .5rem;
    max-width: 24rem;
    & img {
      inline-size: 100%; block-size: auto;
      aspect-ratio: 4 / 5; object-fit: cover;
      /* se la foto manca il segnaposto resta visibile anche senza JS */
      background: url("../assets/portrait-placeholder.svg") center / cover no-repeat var(--surface);
      filter: grayscale(1) contrast(1.08) brightness(.95);
      transition: filter .55s cubic-bezier(.2,.7,.2,1);
    }
    &:hover img, &:focus-within img { filter: none; }
    & figcaption {
      font: 400 var(--step--1) var(--mono);
      letter-spacing: .06em; color: var(--dimmer);
      padding: .75rem .25rem .15rem;
    }
    &::before { /* angolo tecnico */
      content: ""; position: absolute; inset-block-start: -1px; inset-inline-end: -1px;
      inline-size: 1.5rem; block-size: 1.5rem;
      border-top: 2px solid var(--phosphor); border-right: 2px solid var(--phosphor);
    }
  }
  /* foto in bianco e nero su sfondo grigio; a colori al passaggio */
  .portrait__frame {
    position: relative; display: block; overflow: clip; border-radius: 2px;
    box-shadow: 0 0 0 1px color-mix(in oklch, var(--phosphor) 45%, transparent);
  }

  .portrait__scan {
    position: absolute; inset: 0; pointer-events: none;
    background: repeating-linear-gradient(180deg,
      color-mix(in oklch, var(--ink) 40%, transparent) 0 1px,
      transparent 1px 3px);
    mix-blend-mode: multiply;
    opacity: .45; transition: opacity .55s;
  }
  .portrait:hover .portrait__scan { opacity: .15; }

  /* — prosa — */
  .prose {
    display: grid; gap: 1.1rem;
    max-width: 60ch;
    color: var(--dim);
    & p { font-size: var(--step-0); }
  }
  .ticks {
    display: grid; gap: .55rem; margin-top: .5rem;
    font-size: var(--step-0);
    & li {
      display: grid; grid-template-columns: 1.4rem 1fr; align-items: start;
      color: var(--bone);
      &::before {
        content: "→"; color: var(--phosphor); font-family: var(--mono);
      }
    }
  }

  /* — schede servizi — */
  .cards {
    display: grid; gap: 1px;
    grid-template-columns: repeat(auto-fit, minmax(min(100%, 21rem), 1fr));
    background: var(--line);
    border: 1px solid var(--line);
    border-radius: var(--r);
    overflow: clip;
  }
  .card {
    container-type: inline-size;
    background: var(--surface-2);
    padding: clamp(1.5rem, 2.5vw, 2.25rem);
    display: grid; gap: .85rem; align-content: start;
    position: relative;
    transition: background .25s;
    & h3 { font-size: var(--step-1); }
    & p { color: var(--dim); font-size: var(--step-0); line-height: 1.6; }
    &::before {
      content: ""; position: absolute; inset-block-start: 0; inset-inline: 0;
      block-size: 2px; background: var(--phosphor);
      scale: 0 1; transform-origin: left;
      transition: scale .35s cubic-bezier(.2,.7,.2,1);
    }
    &:hover {
      background: color-mix(in oklch, var(--phosphor) 5%, var(--surface-2));
      &::before { scale: 1 1; }
    }
  }
  .card--focus {
    background: color-mix(in oklch, var(--phosphor) 7%, var(--surface-2));
    &::before { scale: 1 1; }
    & h3 { color: var(--phosphor); }
  }
  .chips {
    display: flex; flex-wrap: wrap; gap: .35rem; margin-top: .35rem;
    & li {
      font: 400 .8rem var(--mono); letter-spacing: .04em;
      padding: .28rem .5rem;
      border: 1px solid var(--line-2); border-radius: 2px;
      color: var(--dim);
    }
  }
  /* la scheda si adatta alla propria larghezza, non a quella dello schermo */
  @container (min-width: 22rem) {
    .card { padding: clamp(1.75rem, 3cqi, 2.5rem); }
    .card h3 { font-size: 1.6rem; }
  }

  /* — metodo (sequenza) — */
  .steps {
    display: grid; gap: 1px;
    grid-template-columns: repeat(auto-fit, minmax(16rem, 1fr));
    background: var(--line);
  }
  .step {
    background: var(--ink);
    padding: clamp(1.5rem, 3vw, 2.5rem) clamp(1.25rem, 2.5vw, 2rem);
    display: grid; gap: .8rem; align-content: start;
    & h3 { font-size: var(--step-1); }
    & p { color: var(--dim); font-size: var(--step-0); line-height: 1.6; }
  }
  .step__n {                      /* unico giallo della pagina: scandisce le fasi */
    font: 600 var(--step-2) var(--mono);
    color: var(--evidenza);
    letter-spacing: -.02em;
  }
  .step__out {
    margin-top: .35rem; padding-top: .8rem;
    border-top: 1px dashed var(--line-2);
    font-family: var(--mono); font-size: .85rem !important;
    letter-spacing: .04em;
    color: var(--scan) !important;
  }

  /* — stack — */
  .stack {
    display: grid; gap: 0;
    border-block-start: 1px solid var(--line);
    & > div {
      display: grid; gap: .35rem 2rem;
      padding-block: 1.1rem;
      border-block-end: 1px solid var(--line);
      transition: background .2s, padding-inline .2s;
      &:hover { background: color-mix(in oklch, var(--phosphor) 4%, transparent); }
    }
    & dt {
      font: 600 var(--step--1) var(--mono);
      letter-spacing: .14em; text-transform: uppercase; color: var(--phosphor);
    }
    & dd { color: var(--dim); font-size: var(--step-0); }
  }

  /* — contatti — */
  .contact {
    display: grid;
    border-block-start: 1px solid var(--line-2);
  }
  .contact__row {
    display: grid; gap: .35rem;
    padding-block: 1.15rem;
    border-block-end: 1px solid var(--line);
    & dt {
      font: 600 var(--step--1) var(--mono);
      letter-spacing: .14em; text-transform: uppercase; color: var(--dimmer);
    }
    & dd {
      display: flex; flex-wrap: wrap; align-items: center; gap: .5rem 1rem;
      font-size: var(--step-1);
      & a {
        text-decoration: none;
        color: var(--bone);
        border-block-end: 1px solid var(--line-2);
        transition: color .2s, border-color .2s;
        &:hover { color: var(--phosphor); border-color: var(--phosphor); }
      }
      & address { font-size: var(--step-0); line-height: 1.5; color: var(--dim); }
    }
  }
  .copy {
    font: 400 .8rem var(--mono); letter-spacing: .12em; text-transform: uppercase;
    color: var(--dimmer); cursor: pointer;
    border: 1px solid var(--line); border-radius: 2px;
    padding: .25rem .5rem;
    transition: color .2s, border-color .2s, background .2s;
    &:hover { color: var(--phosphor); border-color: var(--line-2); background: color-mix(in oklch, var(--phosphor) 8%, transparent); }
    &[data-done] { color: var(--scan); border-color: var(--scan); }
  }

  /* — footer — */
  .foot {
    border-block-start: 1px solid var(--line);
    padding-block: 2.5rem;
    background: var(--ink);
  }
  .foot__in {
    display: flex; flex-wrap: wrap; gap: .75rem 2rem; justify-content: space-between;
    font: 400 var(--step--1) var(--mono); letter-spacing: .06em;
    color: var(--dimmer);
    & a { text-decoration: none; &:hover { color: var(--phosphor); } }
  }
}

/* ─────────────────────────── MOTION ───────────────────────── */
@layer motion {
  @keyframes pulse {
    0%   { box-shadow: 0 0 0 0 var(--glow); }
    70%  { box-shadow: 0 0 0 .55rem transparent; }
    100% { box-shadow: 0 0 0 0 transparent; }
  }
  @keyframes rise {
    from { opacity: 0; translate: 0 1.75rem; }
    to   { opacity: 1; translate: 0 0; }
  }
  @keyframes boot { from { opacity: 0; translate: 0 .9rem; } to { opacity: 1; translate: 0 0; } }
  @keyframes sweep { from { inset-inline-start: -4%; } to { inset-inline-start: 104%; } }
  @keyframes blink { 0%, 49% { opacity: 1; } 50%, 100% { opacity: .15; } }

  /* scariche a intervalli disuguali: due colpi ravvicinati, pausa, un colpo solo */
  @keyframes call {
    0%, 5%   { background: var(--phosphor); color: var(--ink); box-shadow: 0 0 34px -6px var(--glow); }
    6%, 11%  { background: color-mix(in oklch, var(--phosphor) 12%, transparent); color: var(--phosphor); box-shadow: none; }
    12%, 17% { background: var(--phosphor); color: var(--ink); box-shadow: 0 0 34px -6px var(--glow); }
    18%, 52% { background: color-mix(in oklch, var(--phosphor) 12%, transparent); color: var(--phosphor); box-shadow: none; }
    53%, 57% { background: var(--phosphor); color: var(--ink); box-shadow: 0 0 34px -6px var(--glow); }
    58%, 78% { background: color-mix(in oklch, var(--phosphor) 12%, transparent); color: var(--phosphor); box-shadow: none; }
    79%, 81% { background: var(--phosphor); color: var(--ink); box-shadow: 0 0 34px -6px var(--glow); }
    82%, 100%{ background: color-mix(in oklch, var(--phosphor) 12%, transparent); color: var(--phosphor); box-shadow: none; }
  }

  /* apertura pagina: sequenza breve, una volta */
  @media (prefers-reduced-motion: no-preference) {
    .hero__inner > * { animation: boot .8s cubic-bezier(.2,.7,.2,1) backwards; }
    .hero__inner > :nth-child(1) { animation-delay: .05s; }
    .hero__inner > :nth-child(2) { animation-delay: .18s; }
    .hero__inner > :nth-child(3) { animation-delay: .32s; }
    .hero__inner > :nth-child(4) { animation-delay: .44s; }
    .hero__inner > :nth-child(5) { animation-delay: .56s; }
  }

  /* rivelazione allo scroll, nativa dove supportata */
  @supports (animation-timeline: view()) {
    @media (prefers-reduced-motion: no-preference) {
      .sec__head, .card, .step, .portrait, .prose,
      .stack > div, .contact__row {
        animation: rise linear both;
        animation-timeline: view();
        animation-range: entry 8% cover 26%;
      }
    }
  }
}

/* ───────────────────────── RESPONSIVE ─────────────────────── */
@layer responsive {
  @media (min-width: 48rem) {
    .sec__grid { grid-template-columns: minmax(0, 1fr) minmax(0, 1.35fr); grid-template-areas: "head head" "photo prose"; }
    .sec__grid .sec__head { grid-area: head; }
    .sec__grid .portrait { grid-area: photo; }
    .sec__grid .prose { grid-area: prose; }
    .sec__split { grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr); }
    .contact__row { grid-template-columns: 9rem 1fr; align-items: baseline; gap: 1rem; }
    .stack > div { grid-template-columns: 11rem 1fr; align-items: baseline; }
  }

  @media (min-width: 68rem) {
    :root { --rail: 5.5rem; }

    .rail {
      display: flex; flex-direction: column; align-items: center; justify-content: space-between;
      position: fixed; inset-block: 0; inset-inline-start: 0; z-index: 50;
      inline-size: 5.5rem; padding-block: 1.75rem;
      border-inline-end: 1px solid var(--line);
      background: color-mix(in oklch, var(--ink) 82%, transparent);
      backdrop-filter: blur(8px);
    }
    .rail__logo {
      inline-size: 3.4rem; block-size: auto;
      color: var(--brand);
      font-family: var(--display);
      filter: drop-shadow(0 0 14px color-mix(in oklch, var(--brand) 45%, transparent));
    }
    .rail__list { display: grid; gap: 1.35rem; }
    .rail__list a {
      display: flex; align-items: center; gap: .6rem;
      text-decoration: none;
      writing-mode: vertical-rl;
      font: 400 .8rem var(--mono); letter-spacing: .22em; text-transform: uppercase;
      color: var(--dimmer);
      transition: color .2s;
      &:hover, &[aria-current="true"] { color: var(--phosphor); }
      &[aria-current="true"] .rail__dot { background: var(--phosphor); box-shadow: 0 0 10px var(--glow); }
    }
    .rail__dot {
      inline-size: .35rem; block-size: .35rem; flex: none;
      background: var(--line-2); transition: background .2s, box-shadow .2s;
    }
    .rail__vat {
      writing-mode: vertical-rl;
      font: 400 .74rem var(--mono); letter-spacing: .2em;
      color: var(--dimmer);
    }
  }

}