/* ============================================================
   Tappito — Design System v3 — parte 1 di 4
   I file sono spezzati e tenuti sotto i 16 KB: il proxy Aruba
   tronca a 16384 byte le risposte piu' grandi (vedi CLAUDE.md).
   Vanno caricati in ordine: la cascata dipende dalla sequenza.
   ============================================================ */
/* ============================================================
   Tappito — Public Site Design System v3
   "Editorial Tech" — ink + electric blue + coral signal
   Neutrale rispetto alle 4 soluzioni: nessun colore di settore
   domina la palette globale.
   ============================================================ */

/* ---- Reset ---- */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

/* ---- Tokens ---- */
:root {
    /* Ink (dark surfaces) */
    --ink:        #070B16;
    --ink-2:      #0E1526;
    --ink-3:      #17203A;
    --ink-line:   rgba(255,255,255,.10);
    --ink-line-2: rgba(255,255,255,.06);

    /* Paper (light surfaces) */
    --paper:      #FFFFFF;
    --paper-2:    #F5F7FA;
    --paper-3:    #EDF1F7;
    --line:       #E3E9F1;

    /* Brand */
    --blue:       #2547F0;
    --blue-dark:  #1633C4;
    --blue-soft:  #EEF1FE;
    --accent:     #FF6A3D;
    --accent-soft:#FFF1EC;

    /* Text */
    --text:       #0A1020;
    --text-2:     #55617A;
    --text-3:     #8C97AC;
    --on-ink:     #FFFFFF;
    --on-ink-2:   rgba(255,255,255,.66);
    --on-ink-3:   rgba(255,255,255,.42);

    /* Verticali — usati SOLO dentro i componenti multi-soluzione */
    --v-kids:  #2547F0;
    --v-work:  #0E9F76;
    --v-guest: #7C4DFF;
    --v-meal:  #E08307;

    /* Radius */
    --r-xs: 8px;
    --r-sm: 12px;
    --r:    18px;
    --r-lg: 28px;
    --r-pill: 999px;

    /* Shadow */
    --sh-sm: 0 1px 2px rgba(8,15,35,.05), 0 1px 3px rgba(8,15,35,.06);
    --sh:    0 4px 12px rgba(8,15,35,.06), 0 1px 3px rgba(8,15,35,.04);
    --sh-md: 0 12px 32px rgba(8,15,35,.09);
    --sh-lg: 0 32px 64px -12px rgba(8,15,35,.22);

    /* Layout */
    --wide: 1240px;
    --narrow: 780px;
    --pad: 28px;
    --sec: clamp(72px, 9vw, 132px);

    /* Type — Archivo (variabile: asse wdth + wght) + JetBrains Mono per i dati */
    --font: 'Archivo', system-ui, -apple-system, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    --mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, 'SF Mono', Menlo, Consolas, monospace;
}

/* ---- Base ---- */
html { scroll-behavior: smooth; scroll-padding-top: 90px; -webkit-text-size-adjust: 100%; }

body {
    font-family: var(--font);
    background: var(--paper);
    color: var(--text);
    line-height: 1.62;
    font-size: 17px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

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

/* Firma tipografica: i titoli usano l'asse di larghezza di Archivo.
   Larghi + crenatura stretta = segnaletica industriale, non "SaaS template". */
h1, h2, h3, h4 {
    line-height: 1.1;
    letter-spacing: -0.03em;
    font-weight: 700;
    font-stretch: 116%;
    text-wrap: balance;
}
h1, .hero h1 { font-stretch: 122%; }

a { color: inherit; }

/* Contro-movimento: le micro-etichette maiuscole vanno strette.
   Titoli larghi + etichette strette = sistema, non decorazione. */
.kicker, .metric .l, .foot-col h3, .panel-badge, .tag-soon,
.dev-top, .device-badge .l, table.cmp thead th, .brand span {
    font-stretch: 88%;
}
.metric .v, .step .num, .device-badge .n,
.feed-row .t, .vis-row .st { font-stretch: normal; }

::selection { background: var(--blue); color: #fff; }

:focus-visible {
    outline: 2.5px solid var(--blue);
    outline-offset: 3px;
    border-radius: 4px;
}

.wrap    { max-width: var(--wide);   margin: 0 auto; padding: 0 var(--pad); }
.wrap-nr { max-width: var(--narrow); margin: 0 auto; padding: 0 var(--pad); }

.sr-only {
    position: absolute; width: 1px; height: 1px;
    padding: 0; margin: -1px; overflow: hidden;
    clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}

/* Skip link */
.skip {
    position: absolute; left: 12px; top: -60px;
    background: var(--ink); color: #fff;
    padding: 12px 20px; border-radius: var(--r-xs);
    text-decoration: none; z-index: 999;
    transition: top .2s;
}
.skip:focus { top: 12px; }

/* ============================================================
   Reveal on scroll
   ============================================================ */
/* Il contenuto e' visibile per default. L'animazione di ingresso si attiva
   solo quando <html> ha la classe "js", messa da uno script inline nel
   <head>: se il JavaScript non arriva, la pagina resta leggibile invece di
   lasciare invisibile tutto cio' che sta sotto la prima schermata. */
.js .rv {
    opacity: 0;
    transform: translateY(22px);
    transition: opacity .7s cubic-bezier(.2,.7,.3,1), transform .7s cubic-bezier(.2,.7,.3,1);
}
.js .rv.in { opacity: 1; transform: none; }
.rv-d1 { transition-delay: .07s }
.rv-d2 { transition-delay: .14s }
.rv-d3 { transition-delay: .21s }
.rv-d4 { transition-delay: .28s }

@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    .js .rv { opacity: 1; transform: none; transition: none; }
    *, *::before, *::after {
        animation-duration: .001ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: .001ms !important;
    }
}

/* ============================================================
   Buttons
   ============================================================ */
.btn {
    display: inline-flex; align-items: center; gap: 9px;
    padding: 15px 26px;
    border: 1px solid transparent;
    border-radius: var(--r-pill);
    font-size: .96rem; font-weight: 600;
    letter-spacing: -0.01em;
    text-decoration: none;
    cursor: pointer;
    white-space: nowrap;
    transition: transform .18s cubic-bezier(.2,.7,.3,1), background .18s, box-shadow .18s, border-color .18s, color .18s;
}
.btn:hover { transform: translateY(-2px); }
.btn:active { transform: translateY(0); }
.btn svg { flex-shrink: 0; }

.btn-primary {
    background: var(--blue); color: #fff;
    box-shadow: 0 6px 20px -6px rgba(37,71,240,.6);
}
.btn-primary:hover { background: var(--blue-dark); box-shadow: 0 12px 28px -8px rgba(37,71,240,.65); }

.btn-ghost-dark {
    background: rgba(255,255,255,.06);
    border-color: rgba(255,255,255,.18);
    color: #fff;
    backdrop-filter: blur(8px);
}
.btn-ghost-dark:hover { background: rgba(255,255,255,.13); border-color: rgba(255,255,255,.3); }

.btn-ghost {
    background: var(--paper);
    border-color: var(--line);
    color: var(--text);
    box-shadow: var(--sh-sm);
}
.btn-ghost:hover { border-color: var(--text-3); }

.btn-sm { padding: 11px 20px; font-size: .875rem; }

/* ============================================================
   Nav
   ============================================================ */
.nav {
    position: fixed; inset: 0 0 auto 0;
    z-index: 200;
    height: 72px;
    display: flex; align-items: center; justify-content: space-between;
    padding: 0 var(--pad);
    color: #fff;
    transition: background .3s, box-shadow .3s, color .3s, border-color .3s;
    border-bottom: 1px solid transparent;
}
.nav.pinned {
    background: rgba(255,255,255,.86);
    backdrop-filter: blur(20px) saturate(1.6);
    -webkit-backdrop-filter: blur(20px) saturate(1.6);
    border-bottom-color: var(--line);
    color: var(--text);
}

.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; color: inherit; }
/* flex-shrink:0 e' necessario, non difensivo: dentro un contenitore flex
   un'immagine SVG puo' essere ristretta fino a sparire quando lo spazio e'
   poco. Safari su iOS lo fa piu' facilmente degli altri browser. */
.brand img { height: 32px; width: 32px; flex-shrink: 0; }
.brand span {
    font-size: 1.13rem; font-weight: 800;
    letter-spacing: .14em;
}

.nav-menu { display: flex; align-items: center; gap: 6px; }

.nav-link {
    position: relative;
    padding: 9px 14px;
    font-size: .92rem; font-weight: 500;
    text-decoration: none; color: inherit;
    opacity: .82;
    border-radius: var(--r-xs);
    transition: opacity .2s, background .2s;
    background: none; border: 0; font-family: inherit; cursor: pointer;
}
.nav-link:hover { opacity: 1; background: rgba(127,127,127,.1); }

.nav-cta { display: flex; align-items: center; gap: 10px; margin-left: 14px; }
.nav .btn-nav-out {
    padding: 9px 18px; font-size: .88rem; font-weight: 600;
    border: 1px solid currentColor; border-radius: var(--r-pill);
    text-decoration: none; opacity: .85;
    transition: opacity .2s, background .2s;
}
.nav .btn-nav-out:hover { opacity: 1; }
.nav .btn-nav-fill {
    padding: 10px 20px; font-size: .88rem; font-weight: 600;
    border-radius: var(--r-pill);
    text-decoration: none;
    background: var(--blue); color: #fff;
    transition: background .2s, transform .2s;
}
.nav .btn-nav-fill:hover { background: var(--blue-dark); transform: translateY(-1px); }

/* Dropdown */
.nav-drop { position: relative; }
.nav-drop > .nav-link { display: inline-flex; align-items: center; gap: 5px; }
.nav-drop > .nav-link svg { transition: transform .25s; }
.nav-drop:hover > .nav-link svg { transform: rotate(180deg); }

.drop-panel {
    position: absolute; top: calc(100% + 10px); left: 50%;
    transform: translateX(-50%) translateY(-8px);
    width: 340px;
    background: var(--paper);
    border: 1px solid var(--line);
    border-radius: var(--r);
    box-shadow: var(--sh-lg);
    padding: 8px;
    opacity: 0; visibility: hidden; pointer-events: none;
    color: var(--text);
    /* Chiusura ritardata: il puntatore puo' uscire un istante dall'area
       (angoli, movimenti in diagonale) senza far sparire la tendina.
       In apertura il ritardo e' azzerato, cosi' resta immediata. */
    transition: opacity .22s, transform .22s, visibility .22s;
    transition-delay: .25s;
}
/* Ponte invisibile sullo stacco di 10px fra il link e la tendina:
   senza questo, scendendo col mouse si perde l'hover a meta' strada
   e il menu si chiude prima di raggiungere le voci. */
.drop-panel::before {
    content: '';
    position: absolute;
    top: -14px; left: 0; right: 0; height: 14px;
}
.nav-drop:hover .drop-panel,
.nav-drop:focus-within .drop-panel {
    opacity: 1; visibility: visible; pointer-events: auto;
    transform: translateX(-50%) translateY(0);
    transition-delay: 0s;
}
.drop-item {
    display: flex; align-items: flex-start; gap: 12px;
    padding: 12px 13px;
    border-radius: var(--r-sm);
    text-decoration: none;
    transition: background .18s;
}
.drop-item:hover { background: var(--paper-2); }
.drop-ico {
    flex-shrink: 0;
    width: 34px; height: 34px;
    display: grid; place-items: center;
    border-radius: 10px;
    color: #fff;
}
.drop-txt strong { display: block; font-size: .92rem; font-weight: 600; letter-spacing: -0.01em; }
.drop-txt small { display: block; font-size: .8rem; color: var(--text-2); line-height: 1.4; margin-top: 2px; }

.tag-soon {
    display: inline-block;
    margin-left: 6px;
    font-size: .62rem; font-weight: 700;
    letter-spacing: .09em; text-transform: uppercase;
    padding: 2px 7px; border-radius: var(--r-pill);
    background: var(--accent-soft); color: #C74A1E;
    vertical-align: 2px;
}

/* Hamburger */
.burger {
    display: none;
    width: 42px; height: 42px;
    background: none; border: 0; cursor: pointer;
    padding: 10px; color: inherit;
}
.burger span {
    display: block; height: 2px; width: 100%;
    background: currentColor; border-radius: 2px;
    transition: transform .28s, opacity .2s;
}
.burger span + span { margin-top: 5px; }
.burger[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.burger[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.burger[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ============================================================
   Hero
   ============================================================ */
.hero {
    position: relative;
    background: var(--ink);
    color: var(--on-ink);
    padding: 152px 0 var(--sec);
    overflow: hidden;
    isolation: isolate;
}
.hero::before {
    content: '';
    position: absolute; inset: 0;
    background:
        radial-gradient(900px 520px at 76% 18%, rgba(37,71,240,.34), transparent 62%),
        radial-gradient(620px 420px at 8% 88%, rgba(255,106,61,.13), transparent 64%);
    z-index: -2;
}
.hero::after {
    content: '';
    position: absolute; inset: 0;
    background-image:
        linear-gradient(rgba(255,255,255,.035) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,.035) 1px, transparent 1px);
    background-size: 68px 68px;
    mask-image: radial-gradient(circle at 50% 30%, #000 20%, transparent 78%);
    -webkit-mask-image: radial-gradient(circle at 50% 30%, #000 20%, transparent 78%);
    z-index: -1;
}

.hero-grid {
    max-width: var(--wide); margin: 0 auto; padding: 0 var(--pad);
    display: grid;
    grid-template-columns: minmax(0,1.06fr) minmax(0,.94fr);
    gap: clamp(40px, 6vw, 84px);
    align-items: center;
}

/* Riga di testo, non griglia: con display:flex il "gap" cade anche fra il
   <b> e il testo che segue, staccando la virgola dalla parola precedente
   ("Quattro soluzioni , una sola piattaforma") e allineandoli come blocchi
   indipendenti. Una frase va composta come testo. */
.eyebrow {
    display: inline-block;
    padding: 7px 16px;
    border-radius: var(--r-pill);
    border: 1px solid rgba(255,255,255,.15);
    background: rgba(255,255,255,.05);
    font-size: .795rem; font-weight: 500;
    letter-spacing: .01em;
    color: var(--on-ink-2);
    backdrop-filter: blur(8px);
}
.eyebrow b { color: #fff; font-weight: 600; }
.pulse-dot {
    display: inline-block; vertical-align: middle;
    width: 7px; height: 7px; border-radius: 50%;
    background: #3DDC84;
    margin-right: 9px; position: relative; top: -1px;
    box-shadow: 0 0 0 0 rgba(61,220,132,.7);
    animation: pulse 2.4s infinite;
}
@keyframes pulse {
    0%   { box-shadow: 0 0 0 0 rgba(61,220,132,.6); }
    70%  { box-shadow: 0 0 0 9px rgba(61,220,132,0); }
    100% { box-shadow: 0 0 0 0 rgba(61,220,132,0); }
}

.hero h1 {
    margin: 26px 0 0;
    font-size: clamp(2.7rem, 6.1vw, 4.55rem);
    font-weight: 800;
    letter-spacing: -0.042em;
    line-height: 1.02;
}
/* Il titolo era in gradiente da blu a corallo: e' il tratto piu' riconoscibile
   del design generato in serie. Ora e' bianco pieno e l'accento sta tutto nel
   punto finale — un dettaglio, non un effetto. */
.hero h1 .punto { color: var(--accent); }

/* Etichetta di categoria sopra il titolo: dice di che software si tratta.
   Ha preso il posto della pillola con pallino pulsante, che era decorativa
   e non aggiungeva informazione. */
.categoria {
    margin-bottom: 24px;
    font-size: .78rem; font-weight: 700; font-stretch: 88%;
    letter-spacing: .15em; text-transform: uppercase;
    color: var(--on-ink-3);
}