@charset "UTF-8";

/* =============================================================================
   SHARKStudio — Homepage
   -----------------------------------------------------------------------------
   1.  Design token
   2.  Reset e basi
   3.  Sfondo (canvas mesh + strati in overlay)
   4.  Particelle
   5.  Animazioni di entrata
   6.  Impalcatura
   7.  Header e navigazione
   8.  Hero
   9.  Striscia tecnologie
   10. Sezioni
   11. Servizi
   12. Progetti
   13. Clienti
   14. Metodo
   15. Call to action
   16. Footer
   17. Pagine interne
   18. Breakpoint
   19. Riduzione del movimento
   ========================================================================== */


/* 1. Design token
   ========================================================================== */
:root {
    /* Palette istituzionale */
    --color-violet:        #7a51ed;
    --color-indigo:        #4931e6;
    --color-violet-bright: #a854ff;
    --color-blue-deep:     #1311a3;
    --color-amber:         #ff9328;

    /* Superfici e testo */
    --color-surface:       #05050a;
    --color-text:          #ecebf4;
    --color-text-muted:    #b4afc8;
    --color-border:        rgba(255, 255, 255, .09);
    --color-glass:         rgba(255, 255, 255, .035);

    /* Tipografia */
    --font-sans:  "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    --font-serif: "Fraunces", "Recoleta", Georgia, "Times New Roman", serif;

    /* Metriche */
    --gutter:        clamp(1.25rem, 5vw, 4.5rem);
    --shell-width:   1240px;
    --header-height: 74px;
    --radius:        18px;
    --stagger-step:  .15s;

    /* Curve */
    --ease-out: cubic-bezier(.16, .84, .3, 1);
    --ease-draw: cubic-bezier(.2, .7, .2, 1);
}


/* 2. Reset e basi
   ========================================================================== */
*,
*::before,
*::after { box-sizing: border-box; }

html {
    -webkit-text-size-adjust: 100%;
    scroll-behavior: smooth;
    scroll-padding-top: calc(var(--header-height) + 1rem);
}

body {
    margin: 0;
    background: var(--color-surface);
    color: var(--color-text);
    font-family: var(--font-sans);
    font-size: clamp(15px, .55vw + 13.6px, 17px);
    font-weight: 400;
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

body.is-locked { overflow: hidden; }

img { display: block; max-width: 100%; }

/* Niente max-width sul canvas: deborda di proposito oltre il proprio
   contenitore e un limite al 100% lascerebbe scoperto il bordo destro. */
canvas { display: block; }

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

h1, h2, h3 {
    margin: 0;
    font-weight: 600;
    letter-spacing: -.03em;
    line-height: 1.05;
}

p, ul, ol, figure { margin: 0; }

ul, ol { padding: 0; list-style: none; }

address { font-style: normal; }

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

:focus-visible {
    outline: 2px solid var(--color-violet-bright);
    outline-offset: 4px;
    border-radius: 6px;
}

/* Corsivo serif con testo sfumato: usato negli occhielli dei titoli */
.accent {
    font-family: var(--font-serif);
    font-style: italic;
    font-weight: 300;
    font-variation-settings: "SOFT" 60, "WONK" 1;
    letter-spacing: -.025em;
    background: linear-gradient(102deg, #ffffff 0%, var(--color-violet-bright) 30%, var(--color-violet) 55%, var(--color-amber) 100%);
    background-size: 180% 100%;
    -webkit-background-clip: text;
            background-clip: text;
    -webkit-text-fill-color: transparent;
    color: transparent;
    padding-right: .06em;
    animation: accent-shift 14s ease-in-out infinite alternate;
}

@keyframes accent-shift {
    to { background-position: 100% 0; }
}


/* 3. Sfondo
   -----------------------------------------------------------------------------
   Un canvas a bassa risoluzione riscalato dal browser, sormontato da quattro
   strati fissi: reticolo di punti, reticolo tecnico, vignettatura e grana.
   ========================================================================== */
.backdrop {
    position: fixed;
    inset: 0;
    z-index: 0;
    overflow: hidden;
    pointer-events: none;
}

/* 3a. Mesh gradient — il canvas è disegnato a ~1/14 della risoluzione reale:
       l'ingrandimento operato dal browser fornisce la sfocatura senza costo. */
.backdrop__mesh {
    position: absolute;
    inset: -6%;
    width: 112%;
    height: 112%;
}

/* 3b. Reticolo di punti, sfumato ai bordi da una maschera radiale */
.backdrop__dots {
    position: absolute;
    inset: 0;
    background-image: radial-gradient(circle, rgba(255, 255, 255, .22) 1px, transparent 1.2px);
    background-size: 26px 26px;
    -webkit-mask-image: radial-gradient(ellipse 78% 62% at 50% 38%, #000 0%, rgba(0, 0, 0, .55) 45%, transparent 78%);
            mask-image: radial-gradient(ellipse 78% 62% at 50% 38%, #000 0%, rgba(0, 0, 0, .55) 45%, transparent 78%);
    opacity: .5;
    will-change: transform;
}

/* 3c. Reticolo di costruzione tecnica (l'SVG è generato da main.js) */
.backdrop__blueprint {
    position: absolute;
    top: 50%;
    left: 50%;
    width: min(190vh, 190vw);
    height: min(190vh, 190vw);
    translate: -50% -50%;
    opacity: .08;
    will-change: transform;
}

.backdrop__blueprint svg {
    width: 100%;
    height: 100%;
    overflow: visible;
    fill: none;
    stroke: #fff;
    stroke-width: .7;
}

.backdrop__blueprint circle,
.backdrop__blueprint path,
.backdrop__blueprint rect { vector-effect: non-scaling-stroke; }

.blueprint__rotor {
    transform-origin: 600px 600px;
    animation: blueprint-rotate 190s linear infinite;
}

@keyframes blueprint-rotate {
    to { transform: rotate(360deg); }
}

/* Tracciamento al caricamento. pathLength="1" rende i valori del tratteggio
   indipendenti dalla lunghezza reale della curva. */
.blueprint__stroke {
    stroke-dasharray: 1;
    stroke-dashoffset: 1;
    animation: stroke-draw 2.6s var(--ease-draw) forwards;
    animation-delay: calc(var(--draw-order, 0) * .25s);
}

@keyframes stroke-draw {
    to { stroke-dashoffset: 0; }
}

/* 3d. Vignettatura radiale, con velo diagonale a protezione della leggibilità */
.backdrop__vignette {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse 100% 85% at 50% 42%, transparent 0%, transparent 40%, rgba(3, 3, 8, .6) 74%, rgba(3, 3, 8, .94) 100%),
        linear-gradient(104deg, rgba(3, 3, 8, .66) 0%, rgba(3, 3, 8, .3) 44%, transparent 70%);
}

/* 3e. Grana pellicola */
.backdrop__grain {
    position: absolute;
    inset: -50%;
    width: 200%;
    height: 200%;
    background-image: url("../img/grain.svg");
    opacity: .05;
    mix-blend-mode: overlay;
    animation: grain-drift 7s steps(6) infinite;
}

@keyframes grain-drift {
    0%   { transform: translate(0, 0); }
    16%  { transform: translate(-3%, -4%); }
    33%  { transform: translate(2%, -2%); }
    50%  { transform: translate(-2%, 3%); }
    66%  { transform: translate(3%, 2%); }
    83%  { transform: translate(-1%, -3%); }
    100% { transform: translate(0, 0); }
}


/* 4. Particelle
   -----------------------------------------------------------------------------
   I valori casuali arrivano da main.js come variabili CSS e vengono ricomposti
   dentro il transform dei fotogrammi chiave: applicare la scala in linea non
   funzionerebbe, l'animazione la sovrascriverebbe.
   ========================================================================== */
.particles {
    position: fixed;
    inset: 0;
    z-index: 0;
    overflow: hidden;
    pointer-events: none;
}

.particle {
    position: absolute;
    bottom: -6vh;
    width: 3px;
    height: 3px;
    border-radius: 50%;
    background: #fff;
    box-shadow: 0 0 6px 1px rgba(168, 84, 255, .85),
                0 0 16px 4px rgba(122, 81, 237, .45);
    opacity: 0;
    animation: particle-rise var(--duration, 22s) linear var(--delay, 0s) infinite;
}

@keyframes particle-rise {
    0%   { transform: translate3d(0, 0, 0) scale(var(--scale, 1)); opacity: 0; }
    8%   { opacity: var(--peak-opacity, .7); }
    85%  { opacity: var(--peak-opacity, .7); }
    100% { transform: translate3d(var(--drift-x, 0), var(--drift-y, -115vh), 0) scale(var(--scale, 1)); opacity: 0; }
}


/* 5. Animazioni di entrata
   ========================================================================== */
.reveal {
    opacity: 0;
    transform: translateY(26px);
    animation: reveal-up .9s var(--ease-out) forwards;
    animation-delay: calc(var(--reveal-order, 0) * var(--stagger-step));
}

/* Sotto la piega l'animazione attende l'ingresso nel viewport */
.section .reveal { animation: none; }

.section .reveal.is-visible {
    animation: reveal-up .9s var(--ease-out) forwards;
    animation-delay: calc(var(--reveal-order, 0) * var(--stagger-step));
}

@keyframes reveal-up {
    to { opacity: 1; transform: none; }
}


/* 6. Impalcatura
   ========================================================================== */
main { position: relative; z-index: 2; }

.shell {
    width: 100%;
    max-width: var(--shell-width);
    margin-inline: auto;
    padding-inline: var(--gutter);
}

/* Oscura progressivamente lo sfondo sotto l'hero */
.content {
    position: relative;
    background: linear-gradient(180deg,
        transparent 0%,
        rgba(5, 5, 10, .64) 9%,
        rgba(5, 5, 10, .82) 22%,
        rgba(5, 5, 10, .88) 100%);
}


/* 7. Header e navigazione
   ========================================================================== */
.site-header {
    position: fixed;
    top: 0;
    right: 0;
    left: 0;
    z-index: 60;
    border-bottom: 1px solid transparent;
    transition: background .35s, backdrop-filter .35s, border-color .35s;
}

.site-header.is-stuck {
    background: rgba(6, 6, 12, .72);
    -webkit-backdrop-filter: blur(16px);
            backdrop-filter: blur(16px);
    border-bottom-color: var(--color-border);
}

.site-header__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    height: var(--header-height);
}

.brand { display: block; }

.brand__logo {
    width: auto;
    height: 30px;
}

.site-nav {
    display: none;
    align-items: center;
    gap: 2.1rem;
}

.site-nav__link {
    position: relative;
    font-size: .9rem;
    color: var(--color-text-muted);
    transition: color .25s;
}

.site-nav__link::after {
    content: "";
    position: absolute;
    right: 100%;
    bottom: -6px;
    left: 0;
    height: 1px;
    background: var(--color-violet-bright);
    transition: right .3s;
}

.site-nav__link:hover { color: var(--color-text); }
.site-nav__link:hover::after { right: 0; }

.site-header .site-header__cta { display: none; }

.nav-toggle {
    display: grid;
    place-content: center;
    gap: 5px;
    width: 44px;
    height: 44px;
    padding: 0;
    background: none;
    border: 1px solid var(--color-border);
    border-radius: 12px;
    cursor: pointer;
}

.nav-toggle__bar {
    display: block;
    width: 17px;
    height: 1.5px;
    background: var(--color-text);
    transition: transform .3s, opacity .2s;
}

body.is-nav-open .nav-toggle__bar:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
body.is-nav-open .nav-toggle__bar:nth-child(2) { opacity: 0; }
body.is-nav-open .nav-toggle__bar:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

.nav-panel {
    position: fixed;
    inset: 0;
    z-index: 55;
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: .4rem;
    padding: 0 var(--gutter);
    background: rgba(6, 6, 12, .93);
    -webkit-backdrop-filter: blur(22px);
            backdrop-filter: blur(22px);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-12px);
    transition: opacity .3s, transform .35s, visibility .3s;
}

body.is-nav-open .nav-panel {
    opacity: 1;
    visibility: visible;
    transform: none;
}

.nav-panel__link {
    padding: .35rem 0;
    border-bottom: 1px solid var(--color-border);
    font-family: var(--font-serif);
    font-size: clamp(1.9rem, 8vw, 2.6rem);
    font-weight: 300;
}

.nav-panel__link:last-child { border-bottom: 0; }


/* 8. Hero
   ========================================================================== */
.hero {
    display: flex;
    align-items: center;
    min-height: 100svh;
    padding: 120px 0 84px;
}

.eyebrow {
    display: inline-flex;
    align-items: center;
    gap: .6rem;
    padding: .45rem .95rem;
    border: 1px solid var(--color-border);
    border-radius: 999px;
    background: var(--color-glass);
    -webkit-backdrop-filter: blur(8px);
            backdrop-filter: blur(8px);
    font-size: .74rem;
    letter-spacing: .19em;
    text-transform: uppercase;
    color: var(--color-text-muted);
}

.eyebrow__dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: #5be59a;
    box-shadow: 0 0 0 0 rgba(91, 229, 154, .6);
    animation: eyebrow-pulse 2.4s ease-out infinite;
}

@keyframes eyebrow-pulse {
    70%  { box-shadow: 0 0 0 9px rgba(91, 229, 154, 0); }
    100% { box-shadow: 0 0 0 0 rgba(91, 229, 154, 0); }
}

.headline {
    margin: 1.6rem 0 0;
    font-size: clamp(2.5rem, 8.6vw, 6.2rem);
    font-weight: 600;
    letter-spacing: -.045em;
    line-height: .98;
}

/* min-height: durante la cancellazione la riga resta vuota, senza altezza
   minima il titolo collasserebbe e la pagina sotto salterebbe. */
.headline__line {
    display: block;
    min-height: 1em;
}

.headline__accent {
    position: relative;
    display: block;
    width: -moz-fit-content;
    width: fit-content;
    max-width: 100%;
    min-height: 1em;
}

/* Elenco delle frasi reso dal server e letto da main.js */
.hero-phrases { display: none; }


/* 8b. Effetto macchina da scrivere
   -------------------------------------------------------------------------
   Il cursore segue la riga in lavorazione: lampeggia quando il testo è fermo,
   resta acceso mentre si scrive o si cancella.
   ====================================================================== */
.headline__line::after,
.headline__accent::after {
    content: "";
    display: inline-block;
    width: 0;
    overflow: hidden;
    vertical-align: baseline;
    font-family: var(--font-sans);
    font-weight: 300;
    color: var(--color-violet-bright);
    -webkit-text-fill-color: var(--color-violet-bright);
}

.headline[data-active="lead"] .headline__line::after,
.headline[data-active="accent"] .headline__accent::after {
    content: "|";
    width: auto;
    margin-left: .06em;
    animation: caret-blink 1.05s steps(1) infinite;
}

/* Mentre i caratteri scorrono il cursore non deve lampeggiare */
.headline.is-typing .headline__line::after,
.headline.is-typing .headline__accent::after { animation: none; }

@keyframes caret-blink {
    0%, 49%   { opacity: 1; }
    50%, 100% { opacity: 0; }
}

/* Sottolineatura tracciata a mano (l'SVG è generato da main.js) */
.headline__underline {
    position: absolute;
    bottom: -.2em;
    left: 0;
    width: 100%;
    height: .34em;
    overflow: visible;
}

/* Frase su più righe: il tratto sborderebbe oltre l'ultima riga */
.headline__accent--wrapped .headline__underline { display: none; }

.headline__underline path {
    fill: none;
    stroke-linecap: round;
    stroke-dasharray: 1;
    stroke-dashoffset: 1;
}

.headline__underline .underline__primary {
    stroke: url(#underlineGradient);
    stroke-width: 3.2;
}

.headline__underline .underline__secondary {
    stroke: var(--color-amber);
    stroke-width: 1.6;
    opacity: .7;
}

/* Il tratto parte a frase completata e si azzera a ogni nuovo ciclo */
.headline__accent--drawn .headline__underline path {
    animation: stroke-draw 1.2s cubic-bezier(.25, .8, .3, 1) forwards;
}

.headline__accent--drawn .headline__underline .underline__secondary {
    animation-delay: .3s;
}

.lead {
    max-width: 56ch;
    margin-top: 1.9rem;
    font-size: clamp(1rem, .5vw + .92rem, 1.16rem);
    font-weight: 300;
    color: var(--color-text-muted);
}

.lead strong {
    color: var(--color-text);
    font-weight: 500;
}

.lead--centered {
    margin-inline: auto;
    text-align: center;
}

.actions {
    display: flex;
    flex-wrap: wrap;
    gap: .8rem;
    margin-top: 2.4rem;
}

.actions--centered { justify-content: center; }

.button {
    display: inline-flex;
    align-items: center;
    gap: .6rem;
    padding: .92rem 1.6rem;
    border: 1px solid transparent;
    border-radius: 999px;
    font-size: .93rem;
    font-weight: 500;
    white-space: nowrap;
    cursor: pointer;
    transition: transform .25s, box-shadow .3s, background .3s, border-color .3s;
}

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

.button--primary {
    background: linear-gradient(103deg, var(--color-violet), var(--color-indigo));
    color: #fff;
    box-shadow: 0 10px 34px -12px rgba(122, 81, 237, .9);
}

.button--primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 18px 44px -14px rgba(122, 81, 237, 1);
}

.button--ghost {
    border-color: var(--color-border);
    background: var(--color-glass);
    color: var(--color-text);
    -webkit-backdrop-filter: blur(8px);
            backdrop-filter: blur(8px);
}

.button--ghost:hover {
    border-color: rgba(255, 255, 255, .3);
    background: rgba(255, 255, 255, .07);
}

.button__arrow { transition: transform .3s; }
.button:hover .button__arrow { transform: translateX(4px); }

.metrics {
    display: flex;
    flex-wrap: wrap;
    gap: clamp(1.6rem, 5vw, 3.4rem);
    margin-top: 3.4rem;
    padding-top: 1.9rem;
    border-top: 1px solid var(--color-border);
}

.metric__value {
    display: block;
    font-family: var(--font-serif);
    font-size: clamp(1.7rem, 4vw, 2.3rem);
    font-weight: 400;
    letter-spacing: -.02em;
    line-height: 1;
}

.metric__label {
    font-size: .76rem;
    letter-spacing: .14em;
    text-transform: uppercase;
    color: var(--color-text-muted);
}

.scroll-hint {
    position: absolute;
    bottom: 26px;
    left: 50%;
    translate: -50% 0;
    display: none;
    flex-direction: column;
    align-items: center;
    gap: .5rem;
    font-size: .66rem;
    letter-spacing: .22em;
    text-transform: uppercase;
    color: var(--color-text-muted);
}

.scroll-hint__line {
    display: block;
    width: 1px;
    height: 44px;
    background: linear-gradient(180deg, transparent, var(--color-violet-bright));
    transform-origin: top;
    animation: scroll-hint-pulse 2.2s ease-in-out infinite;
}

@keyframes scroll-hint-pulse {
    0%, 100% { transform: scaleY(.35); opacity: .4; }
    50%      { transform: scaleY(1);   opacity: 1; }
}


/* 9. Striscia tecnologie
   ========================================================================== */
.tech-strip {
    overflow: hidden;
    padding: 1.05rem 0;
    border-block: 1px solid var(--color-border);
    -webkit-mask-image: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent);
            mask-image: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent);
}

.tech-strip__track {
    display: flex;
    width: -moz-max-content;
    width: max-content;
    animation: tech-strip-slide 38s linear infinite;
}

.tech-strip__item {
    padding-inline: clamp(1.1rem, 3vw, 2.2rem);
    font-size: .78rem;
    letter-spacing: .2em;
    text-transform: uppercase;
    white-space: nowrap;
    color: var(--color-text-muted);
}

.tech-strip__item::after {
    content: "\25C6";
    margin-left: clamp(1.1rem, 3vw, 2.2rem);
    font-size: .6em;
    vertical-align: middle;
    color: var(--color-violet);
}

@keyframes tech-strip-slide {
    to { transform: translateX(-50%); }
}


/* 10. Sezioni
   ========================================================================== */
.section { padding: clamp(5rem, 11vw, 9rem) 0; }

.section-tag {
    display: flex;
    align-items: center;
    gap: .7rem;
    margin-bottom: 1.4rem;
    font-size: .72rem;
    letter-spacing: .22em;
    text-transform: uppercase;
    color: var(--color-text-muted);
}

.section-tag::before {
    content: "";
    width: 26px;
    height: 1px;
    background: var(--color-violet);
}

.section-title {
    max-width: 20ch;
    font-size: clamp(1.95rem, 4.6vw, 3.35rem);
    font-weight: 600;
    letter-spacing: -.04em;
}

.section-title--centered {
    max-width: 18ch;
    margin-inline: auto;
    font-size: clamp(2.2rem, 6.6vw, 4.4rem);
    text-align: center;
}

.section-lead {
    max-width: 52ch;
    margin-top: 1.1rem;
    font-weight: 300;
    color: var(--color-text-muted);
}


/* 11. Servizi
   ========================================================================== */
.service-grid {
    display: grid;
    gap: 1rem;
    grid-template-columns: 1fr;
    margin-top: clamp(2.4rem, 5vw, 3.6rem);
}

.service-card {
    position: relative;
    overflow: hidden;
    padding: clamp(1.5rem, 3vw, 2.2rem);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    background: var(--color-glass);
    -webkit-backdrop-filter: blur(14px);
            backdrop-filter: blur(14px);
    transition: border-color .35s, transform .35s, background .35s;
}

/* Filo luminoso sul bordo, visibile al passaggio del puntatore */
.service-card::before {
    content: "";
    position: absolute;
    inset: -1px;
    padding: 1px;
    border-radius: inherit;
    background: linear-gradient(140deg, rgba(168, 84, 255, .55), transparent 42%);
    -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
    -webkit-mask-composite: xor;
            mask-composite: exclude;
    opacity: 0;
    transition: opacity .35s;
    pointer-events: none;
}

.service-card:hover {
    transform: translateY(-4px);
    background: rgba(255, 255, 255, .055);
}

.service-card:hover::before { opacity: 1; }

.service-card__index {
    font-family: var(--font-serif);
    font-size: .95rem;
    letter-spacing: .06em;
    color: var(--color-violet-bright);
}

.service-card__title {
    margin: 1.1rem 0 .75rem;
    font-size: clamp(1.2rem, 2.2vw, 1.5rem);
    letter-spacing: -.03em;
}

.service-card__text {
    font-size: .94rem;
    font-weight: 300;
    color: var(--color-text-muted);
}

.tag-list {
    display: flex;
    flex-wrap: wrap;
    gap: .4rem;
    margin-top: 1.4rem;
}

.tag-list__item {
    padding: .28rem .62rem;
    border: 1px solid var(--color-border);
    border-radius: 999px;
    font-size: .7rem;
    letter-spacing: .08em;
    text-transform: uppercase;
    color: var(--color-text-muted);
}


/* 12. Progetti
   ========================================================================== */
.project-grid {
    display: grid;
    gap: 1rem;
    grid-template-columns: 1fr;
    margin-top: clamp(2.4rem, 5vw, 3.6rem);
}

.project-card {
    display: block;
    overflow: hidden;
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    transition: transform .4s, border-color .4s;
}

.project-card:hover {
    transform: translateY(-4px);
    border-color: rgba(255, 255, 255, .26);
}

.project-card__cover {
    position: relative;
    display: grid;
    place-content: center;
    overflow: hidden;
    aspect-ratio: 16 / 10;
}

.project-card__cover::after {
    content: "";
    position: absolute;
    inset: 0;
    background-image: radial-gradient(circle, rgba(255, 255, 255, .16) 1px, transparent 1.2px);
    background-size: 16px 16px;
    opacity: .5;
}

.project-card__cover--1 { background: linear-gradient(140deg, #4931e6, #a854ff); }
.project-card__cover--2 { background: linear-gradient(140deg, #1311a3, #7a51ed); }
.project-card__cover--3 { background: linear-gradient(140deg, #7a51ed, #ff9328); }
.project-card__cover--4 { background: linear-gradient(140deg, #3a2ebf, #7a51ed); }
.project-card__cover--5 { background: linear-gradient(140deg, #a854ff, #4931e6); }
.project-card__cover--6 { background: linear-gradient(140deg, #2a1560, #ff9328); }

.project-card__mark {
    position: relative;
    z-index: 1;
    font-family: var(--font-serif);
    font-size: clamp(1.6rem, 4.4vw, 2.5rem);
    font-weight: 400;
    letter-spacing: -.02em;
    color: #fff;
    mix-blend-mode: overlay;
    transition: transform .5s;
}

.project-card:hover .project-card__mark { transform: scale(1.06); }

.project-card__meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding: 1.05rem 1.25rem;
    background: rgba(6, 6, 12, .55);
}

.project-card__name {
    font-size: 1.02rem;
    font-weight: 600;
    letter-spacing: -.02em;
}

.project-card__type {
    font-size: .72rem;
    letter-spacing: .14em;
    text-transform: uppercase;
    color: var(--color-text-muted);
}


/* 13. Clienti
   ========================================================================== */
.client-list {
    display: grid;
    gap: 0;
    grid-template-columns: 1fr;
    margin-top: clamp(2.4rem, 5vw, 3.4rem);
    border-top: 1px solid var(--color-border);
}

.client {
    display: flex;
    flex-wrap: wrap;
    align-items: baseline;
    justify-content: space-between;
    gap: .3rem 1.5rem;
    padding: 1.35rem 0;
    border-bottom: 1px solid var(--color-border);
}

.client__name {
    font-family: var(--font-serif);
    font-size: clamp(1.35rem, 3vw, 1.9rem);
    font-weight: 400;
    letter-spacing: -.02em;
    transition: color .25s;
}

.client__name:hover { color: var(--color-violet-bright); }

.client__role {
    font-size: .74rem;
    letter-spacing: .16em;
    text-transform: uppercase;
    color: var(--color-text-muted);
}


/* 14. Metodo
   ========================================================================== */
.method {
    margin-top: clamp(2.4rem, 5vw, 3.4rem);
    border-top: 1px solid var(--color-border);
}

.method__step {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 1rem 1.3rem;
    align-items: start;
    padding: 1.6rem 0;
    border-bottom: 1px solid var(--color-border);
}

.method__index {
    padding-top: .25rem;
    font-family: var(--font-serif);
    font-size: .9rem;
    color: var(--color-violet-bright);
}

.method__title {
    font-size: clamp(1.15rem, 2.4vw, 1.5rem);
    letter-spacing: -.03em;
}

.method__text {
    max-width: 62ch;
    margin-top: .45rem;
    font-size: .94rem;
    font-weight: 300;
    color: var(--color-text-muted);
}


/* 15. Call to action
   ========================================================================== */
.section--cta {
    padding: clamp(5rem, 12vw, 10rem) 0;
    text-align: center;
}

.direct {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: .5rem 2rem;
    margin-top: 2.6rem;
    font-size: .92rem;
    color: var(--color-text-muted);
}


/* 16. Footer
   ========================================================================== */
.site-footer {
    padding: clamp(2.8rem, 6vw, 4rem) 0 2.4rem;
    border-top: 1px solid var(--color-border);
    background: rgba(3, 3, 7, .72);
}

.site-footer__top {
    display: grid;
    gap: 2.2rem;
    grid-template-columns: 1fr;
}

.site-footer__intro .brand { margin-bottom: 1.1rem; }

.site-footer__claim {
    max-width: 40ch;
    font-size: .94rem;
    font-weight: 300;
    color: var(--color-text-muted);
}

.site-footer__heading {
    margin-bottom: .9rem;
    font-size: .72rem;
    font-weight: 500;
    letter-spacing: .2em;
    text-transform: uppercase;
    color: var(--color-text-muted);
}

.site-footer__list {
    display: grid;
    gap: .5rem;
    font-size: .94rem;
    font-weight: 300;
    color: var(--color-text-muted);
}

.site-footer__address {
    font-size: .94rem;
    font-weight: 300;
    line-height: 1.9;
    color: var(--color-text-muted);
}

.site-footer__list a:hover,
.site-footer__address a:hover { color: var(--color-text); }

.site-footer__bottom {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: .7rem 1.5rem;
    margin-top: 2.8rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--color-border);
    font-size: .8rem;
    color: var(--color-text-muted);
}


/* 17. Pagine interne
   -----------------------------------------------------------------------------
   Testata breve, navigazione secondaria, elenchi, schede dati, modulo di
   contatto e filtro dei progetti.
   ========================================================================== */

/* --- testata --- */
.page-hero {
    padding: calc(var(--header-height) + clamp(3.5rem, 9vw, 7rem)) 0 clamp(2.5rem, 6vw, 4.5rem);
}

.page-hero--tall { min-height: 80svh; display: flex; align-items: center; }

.page-title {
    margin: 1.6rem 0 0;
    font-size: clamp(2.3rem, 6.4vw, 4.6rem);
    font-weight: 600;
    letter-spacing: -.045em;
    line-height: 1;
    max-width: 18ch;
}

.page-title .accent { display: block; }

.breadcrumb {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: .5rem;
    margin-bottom: 1.5rem;
    font-size: .8rem;
    color: var(--color-text-muted);
}

.breadcrumb__link { transition: color .25s; }
.breadcrumb__link:hover { color: var(--color-text); }
.breadcrumb__separator { opacity: .4; }
.breadcrumb__current { color: var(--color-text); }

.anchor-nav {
    display: flex;
    flex-wrap: wrap;
    gap: .5rem;
    margin-top: 2.4rem;
}

.anchor-nav__link {
    padding: .5rem 1rem;
    border: 1px solid var(--color-border);
    border-radius: 999px;
    background: var(--color-glass);
    font-size: .82rem;
    color: var(--color-text-muted);
    transition: color .25s, border-color .25s, background .25s;
}

.anchor-nav__link:hover {
    color: var(--color-text);
    border-color: rgba(255, 255, 255, .28);
    background: rgba(255, 255, 255, .06);
}

/* --- testo lungo --- */
.prose { margin-top: clamp(1.8rem, 4vw, 2.6rem); }

.prose__paragraph {
    max-width: 68ch;
    margin-top: 1.2rem;
    font-size: 1.02rem;
    font-weight: 300;
    color: var(--color-text-muted);
}

.prose__paragraph strong { color: var(--color-text); font-weight: 500; }

/* --- due colonne --- */
.split {
    display: grid;
    gap: clamp(1.8rem, 4vw, 3rem);
    grid-template-columns: 1fr;
    margin-top: clamp(2.2rem, 5vw, 3.2rem);
}

.split__heading {
    margin-bottom: 1.1rem;
    font-size: .74rem;
    font-weight: 500;
    letter-spacing: .2em;
    text-transform: uppercase;
    color: var(--color-text-muted);
}

/* --- elenchi puntati --- */
.marked-list { display: grid; gap: .85rem; }

.marked-list__item {
    position: relative;
    padding-left: 1.9rem;
    font-size: .96rem;
    font-weight: 300;
    color: var(--color-text-muted);
}

.marked-list__item::before {
    position: absolute;
    top: 0;
    left: 0;
    font-size: .95rem;
    line-height: 1.6;
}

.marked-list__item--issue::before { content: "\2014"; color: var(--color-amber); }
.marked-list__item--done::before  { content: "\2713"; color: var(--color-violet-bright); }

.marked-list__item--step {
    counter-increment: contact-step;
}

.marked-list__item--step::before {
    content: counter(contact-step, decimal-leading-zero);
    font-family: var(--font-serif);
    font-size: .82rem;
    color: var(--color-violet-bright);
}

/* --- scheda dati --- */
.fact-grid {
    display: grid;
    gap: 1px;
    grid-template-columns: 1fr;
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    overflow: hidden;
    background: var(--color-border);
}

.fact {
    display: grid;
    gap: .35rem;
    padding: 1.25rem 1.4rem;
    background: rgba(8, 8, 16, .82);
}

.fact__label {
    font-size: .7rem;
    letter-spacing: .18em;
    text-transform: uppercase;
    color: var(--color-text-muted);
}

.fact__value {
    font-size: .98rem;
    font-weight: 500;
}

/* --- filtro dei progetti --- */
.filter-bar {
    display: flex;
    flex-wrap: wrap;
    gap: .5rem;
    margin-bottom: clamp(1.8rem, 4vw, 2.6rem);
}

.filter-bar__button {
    padding: .5rem 1.05rem;
    border: 1px solid var(--color-border);
    border-radius: 999px;
    background: var(--color-glass);
    color: var(--color-text-muted);
    font-family: inherit;
    font-size: .82rem;
    cursor: pointer;
    transition: color .25s, border-color .25s, background .25s;
}

.filter-bar__button:hover {
    color: var(--color-text);
    border-color: rgba(255, 255, 255, .28);
}

.filter-bar__button.is-active {
    color: #fff;
    border-color: transparent;
    background: linear-gradient(103deg, var(--color-violet), var(--color-indigo));
}

.filter-bar__empty {
    padding: 3rem 0;
    text-align: center;
    color: var(--color-text-muted);
}

.project-card[hidden] { display: none; }

/* Variante con descrizione, usata nell'elenco completo */
.project-card__body {
    display: block;
    background: rgba(6, 6, 12, .55);
}

.project-card__body .project-card__meta { background: none; }

.project-card__summary {
    display: block;
    padding: 0 1.25rem 1.25rem;
    font-size: .9rem;
    font-weight: 300;
    color: var(--color-text-muted);
}

/* --- servizi: titolo cliccabile e tag distanziati --- */
.service-card__link { transition: color .25s; }
.service-card__link:hover { color: var(--color-violet-bright); }

.tag-list--spaced { margin-top: clamp(2rem, 4vw, 2.8rem); }

/* --- contatti --- */
.contact-layout {
    display: grid;
    gap: clamp(2.4rem, 5vw, 4rem);
    grid-template-columns: 1fr;
}

.contact-list {
    display: grid;
    gap: 1rem;
    margin-bottom: 2.6rem;
}

.contact-list__item {
    display: grid;
    gap: .2rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--color-border);
}

.contact-list__label {
    font-size: .7rem;
    letter-spacing: .18em;
    text-transform: uppercase;
    color: var(--color-text-muted);
}

.contact-list__value { font-size: 1rem; transition: color .25s; }
a.contact-list__value:hover { color: var(--color-violet-bright); }

.marked-list { counter-reset: contact-step; }

/* --- modulo --- */
.form { display: grid; gap: 1.3rem; }

/* Nella griglia il bottone si stirerebbe per tutta la larghezza */
.form > .button { justify-self: start; }

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

.form__row {
    display: grid;
    gap: 1.3rem;
    grid-template-columns: 1fr;
}

.form__field { display: grid; gap: .5rem; }

.form__label {
    font-size: .78rem;
    letter-spacing: .12em;
    text-transform: uppercase;
    color: var(--color-text-muted);
}

.form__required { color: var(--color-amber); }

.form__input {
    width: 100%;
    padding: .85rem 1.05rem;
    border: 1px solid var(--color-border);
    border-radius: 12px;
    background: rgba(255, 255, 255, .04);
    color: var(--color-text);
    font-family: inherit;
    font-size: .96rem;
    transition: border-color .25s, background .25s;
}

.form__input::placeholder { color: rgba(180, 175, 200, .5); }

.form__input:focus {
    outline: none;
    border-color: var(--color-violet-bright);
    background: rgba(255, 255, 255, .07);
}

.form__input.is-invalid { border-color: #e2564f; }

.form__textarea { resize: vertical; min-height: 9rem; line-height: 1.6; }

.form__select {
    appearance: none;
    -webkit-appearance: none;
    background-image: linear-gradient(45deg, transparent 50%, var(--color-text-muted) 50%),
                      linear-gradient(135deg, var(--color-text-muted) 50%, transparent 50%);
    background-position: calc(100% - 20px) center, calc(100% - 14px) center;
    background-size: 6px 6px, 6px 6px;
    background-repeat: no-repeat;
    padding-right: 2.6rem;
}

.form__select option { background: #12111c; color: var(--color-text); }

.form__check {
    display: flex;
    gap: .7rem;
    align-items: start;
    font-size: .9rem;
    font-weight: 300;
    color: var(--color-text-muted);
    cursor: pointer;
}

.form__check input { margin-top: .28rem; accent-color: var(--color-violet); }

.form__error { font-size: .84rem; color: #ff9d97; }

/* --- avvisi --- */
.notice {
    padding: 1.5rem 1.7rem;
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    background: var(--color-glass);
}

.notice--success { border-color: rgba(91, 229, 154, .4); }
.notice--error   { border-color: rgba(226, 86, 79, .45); }

.notice__title {
    margin-bottom: .5rem;
    font-size: 1.25rem;
    letter-spacing: -.02em;
}

.notice__text {
    font-size: .96rem;
    font-weight: 300;
    color: var(--color-text-muted);
}

.notice__text a { border-bottom: 1px solid rgba(255, 255, 255, .25); }

@media (min-width: 600px) {
    .fact-grid { grid-template-columns: repeat(2, 1fr); }
    .form__row { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 860px) {
    .split { grid-template-columns: repeat(2, 1fr); }
    .fact-grid { grid-template-columns: repeat(4, 1fr); }
    .contact-layout { grid-template-columns: 1.5fr 1fr; align-items: start; }
    .page-title { max-width: 20ch; }
}


/* 18. Breakpoint
   ========================================================================== */
@media (min-width: 600px) {
    .project-grid    { grid-template-columns: repeat(2, 1fr); }
    .site-footer__top { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 860px) {
    .service-grid,
    .project-grid { gap: 1.15rem; }

    .service-grid { grid-template-columns: repeat(2, 1fr); }

    .client {
        padding: 1.7rem 0;
        flex-wrap: nowrap;
    }

    .method__step {
        gap: 1rem 2.4rem;
        padding: 2rem 0;
    }

    .site-footer__top { grid-template-columns: 1.6fr 1fr 1fr 1.3fr; }

    .scroll-hint { display: flex; }
}

@media (min-width: 960px) {
    .site-nav { display: flex; }
    .site-header .site-header__cta { display: inline-flex; }
    .nav-toggle,
    .nav-panel { display: none; }

    .brand__logo { height: 38px; }
    .headline { max-width: none; }
}

@media (min-width: 1100px) {
    .project-grid { grid-template-columns: repeat(3, 1fr); }
}


/* 19. Riduzione del movimento
   ========================================================================== */
@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }

    *,
    *::before,
    *::after {
        animation-duration: .001ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: .001ms !important;
    }

    .reveal,
    .section .reveal {
        opacity: 1 !important;
        transform: none !important;
    }

    .blueprint__stroke,
    .headline__underline path { stroke-dashoffset: 0 !important; }

    /* Senza rotazione delle frasi il cursore non ha ragione di esistere */
    .headline__line::after,
    .headline__accent::after { content: "" !important; }

    .particles { display: none; }
    .backdrop__grain { animation: none; }
}