/* Traverse Studio — sistema visivo condiviso (home + Optima) */

:root {
    --nebbia: #E8EDEF;
    --asfalto: #1E262B;
    --asfalto-2: #2A343A;
    --traverse: #01B9F5;
    --segnaletica: #F2C230;
    --notte: #2B1450;
    --notte-2: #3A1D68;
    --grigio: #5B6870;

    --font: 'Archivo', system-ui, -apple-system, 'Segoe UI', sans-serif;

    --fs-small: clamp(0.875rem, 0.84rem + 0.15vw, 1.1rem);
    --fs-body: clamp(1rem, 0.94rem + 0.3vw, 1.4rem);
    --fs-lede: clamp(1.15rem, 1rem + 0.7vw, 2rem);
    --fs-h3: clamp(1.25rem, 1rem + 1vw, 2.4rem);
    --fs-h2: clamp(1.8rem, 0.9rem + 3vw, 4.6rem);
    --fs-h1: clamp(2.1rem, 0.6rem + 4.9vw, 7rem);

    --gutter: clamp(20px, 5vw, 96px);
    --wrap-max: 1280px;
    --rail: 18px;
    --leg-pad: clamp(26px, 2vw, 48px);
    --stop: clamp(14px, 0.9vw, 22px);
    --route-w: clamp(2.5px, 0.2vw, 5px);
    --space: clamp(3.5rem, 2rem + 6vw, 10rem);

    --ease: cubic-bezier(0.2, 0.7, 0.2, 1);
}

@media (min-width: 1920px) {
    :root { --wrap-max: 1600px; }
    html { font-size: calc(10px + 0.3125vw); }
}

*, *::before, *::after { box-sizing: border-box; }

html {
    -webkit-text-size-adjust: 100%;
    text-size-adjust: 100%;
}

body {
    margin: 0;
    background: var(--asfalto);
    color: var(--asfalto);
    font-family: var(--font);
    font-size: var(--fs-body);
    line-height: 1.55;
    font-stretch: 100%;
    overflow-x: clip;
    -webkit-font-smoothing: antialiased;
}

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

a { color: inherit; }

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

.skip-link {
    position: absolute;
    left: 12px;
    top: -100px;
    z-index: 100;
    padding: 0.75em 1.2em;
    background: var(--nebbia);
    color: var(--asfalto);
    font-weight: 600;
    border-radius: 6px;
}
.skip-link:focus { top: 12px; }

.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    overflow: hidden;
    clip: rect(0 0 0 0);
    white-space: nowrap;
}

/* ---------- Struttura ---------- */

.wrap {
    width: 100%;
    max-width: calc(var(--wrap-max) + 2 * var(--gutter));
    margin-inline: auto;
    padding-left: max(var(--gutter), env(safe-area-inset-left));
    padding-right: max(var(--gutter), env(safe-area-inset-right));
    position: relative;
    z-index: 1;
}

.chapter {
    position: relative;
    padding-block: var(--space);
    --lane: rgba(30, 38, 43, 0.22);
    --stop-bg: var(--nebbia);
}

.chapter--asfalto {
    background: var(--asfalto);
    color: var(--nebbia);
    --lane: rgba(232, 237, 239, 0.2);
    --stop-bg: var(--asfalto);
}
.chapter--nebbia {
    background: var(--nebbia);
    color: var(--asfalto);
}
.chapter--notte {
    background: var(--notte);
    color: var(--nebbia);
    --lane: rgba(232, 237, 239, 0.2);
    --stop-bg: var(--notte);
}

h1, h2, h3 {
    margin: 0;
    font-stretch: 125%;
    font-weight: 700;
    line-height: 1.04;
    letter-spacing: -0.01em;
    text-wrap: balance;
}
h1 { font-size: var(--fs-h1); }
h2 { font-size: var(--fs-h2); }
h3 { font-size: var(--fs-h3); line-height: 1.15; }

p { margin: 0; max-width: 34em; text-wrap: pretty; }

/* ---------- Percorso (linea disegnata dallo scroll) ---------- */

.route {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    max-width: none;
    overflow: visible;
    pointer-events: none;
    z-index: 0;
}
.route__lane,
.route__trail {
    fill: none;
    stroke-linecap: round;
    stroke-linejoin: round;
}
.route__lane {
    stroke: var(--lane);
    stroke-width: var(--route-w);
    stroke-dasharray: 2 14;
}
.route__trail {
    stroke: var(--traverse);
    stroke-width: calc(var(--route-w) * 1.4);
}
.route__tip {
    fill: var(--segnaletica);
    stroke: var(--stop-bg);
    stroke-width: 3;
    transition: opacity 0.3s;
}

.stop {
    position: absolute;
    left: 0;
    top: var(--stop-top, 0.8em);
    width: var(--stop);
    height: var(--stop);
    border-radius: 50%;
    border: 2px solid var(--lane);
    background: var(--stop-bg);
    transform: translate(-50%, -50%);
    transition: background-color 0.4s, border-color 0.4s, box-shadow 0.4s;
    z-index: 1;
}
.stop.is-reached {
    background: var(--traverse);
    border-color: var(--traverse);
    box-shadow: 0 0 0 calc(var(--stop) * 0.45) color-mix(in srgb, var(--traverse) 22%, transparent);
}
.stop--start {
    width: 2px;
    height: 2px;
    border: 0;
    background: transparent;
    box-shadow: none !important;
}
.stop--dest {
    border-radius: 3px;
    transform: translate(-50%, -50%) rotate(45deg);
    width: calc(var(--stop) * 1.3);
    height: calc(var(--stop) * 1.3);
}
.stop--dest.is-reached {
    background: var(--segnaletica);
    border-color: var(--segnaletica);
    box-shadow: 0 0 0 calc(var(--stop) * 0.45) color-mix(in srgb, var(--segnaletica) 28%, transparent);
}

.leg {
    position: relative;
    margin-left: calc(-1 * var(--leg-pad));
    padding-left: var(--leg-pad);
}

.has-motion .leg__body {
    opacity: 0.12;
    transform: translate3d(0, 0.9rem, 0);
    transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}
.has-motion .leg.is-reached .leg__body {
    opacity: 1;
    transform: none;
}

/* ---------- Capitoli fissati a schermo ---------- */

.pin { position: relative; height: var(--pin-h, 220vh); height: var(--pin-h-s, 220svh); }
.pin--notte { background: var(--notte); }
.pin--nebbia { background: var(--nebbia); }

.pin__frame {
    position: sticky;
    top: 0;
    height: 100vh;
    height: 100svh;
    display: flex;
    align-items: center;
    overflow: hidden;
    padding-block: clamp(2rem, 6svh, 6rem);
}
.pin__frame > .wrap { max-height: 100%; }

/* ---------- Bottoni e link ---------- */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 48px;
    padding: 0.85em 1.6em;
    border-radius: 6px;
    background: var(--asfalto);
    color: var(--nebbia);
    font-weight: 600;
    font-size: var(--fs-body);
    text-decoration: none;
    transition: background-color 0.25s, color 0.25s;
}
.btn:hover { background: var(--traverse); color: var(--asfalto); }
.btn--light { background: var(--nebbia); color: var(--notte); }
.btn--light:hover { background: var(--segnaletica); color: var(--notte); }

.text-link {
    text-decoration: underline;
    text-decoration-thickness: 1px;
    text-underline-offset: 0.25em;
    transition: text-decoration-color 0.2s, color 0.2s;
}
.text-link:hover { text-decoration-color: var(--traverse); text-decoration-thickness: 2px; }

/* ---------- Topbar ---------- */

.topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1.5rem;
    padding-top: max(clamp(1.25rem, 3vw, 3rem), env(safe-area-inset-top));
}
.topbar__nav {
    display: flex;
    gap: clamp(1rem, 2.5vw, 2.5rem);
    font-size: var(--fs-small);
}
.topbar__nav a {
    display: inline-flex;
    align-items: center;
    min-height: 44px;
    text-decoration: none;
    opacity: 0.8;
    transition: opacity 0.2s;
}
.topbar__nav a:hover { opacity: 1; text-decoration: underline; text-underline-offset: 0.3em; }

.brand {
    position: relative;
    display: block;
    width: clamp(170px, 26vw, 520px);
    flex-shrink: 0;
}
.brand img { width: 100%; }
.brand .stop--start { left: 94.8%; top: 50%; }

/* ---------- HOME: hero ---------- */

.hero {
    min-height: 100vh;
    min-height: 100svh;
    padding-block: 0 clamp(3rem, 10svh, 9rem);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    gap: 4rem;
    --route-out: 84%;
}
.hero__body {
    transform: translate3d(0, calc(var(--p, 0) * -10vh), 0);
    opacity: calc(1 - var(--p, 0) * 0.8);
}
.hero__title .line {
    display: block;
    overflow: hidden;
    padding-bottom: 0.08em;
}
.hero__title .line > span { display: block; }
.hero__lede {
    margin-top: clamp(1.25rem, 2.5vw, 2.5rem);
    font-size: var(--fs-lede);
    color: rgba(232, 237, 239, 0.78);
}

.has-motion .hero__title .line > span {
    transform: translate3d(0, 105%, 0);
    animation: rise 1s var(--ease) forwards;
}
.has-motion .hero__title .line:nth-child(2) > span { animation-delay: 0.14s; }
.has-motion .hero__lede {
    opacity: 0;
    animation: fade 0.9s var(--ease) 0.45s forwards;
}
@keyframes rise { to { transform: none; } }
@keyframes fade { to { opacity: 1; } }

/* ---------- HOME: vision ---------- */

.vision { --route-in: 84%; --route-out: 50%; }
.vision__grid { display: grid; gap: clamp(2.5rem, 5vw, 6rem); align-items: center; }
.vision__legs {
    list-style: none;
    margin: 0;
    padding: 0;
    display: grid;
    gap: clamp(2rem, 4vw, 4.5rem);
    font-size: var(--fs-lede);
    line-height: 1.45;
}

/* ---------- HOME: capitolo Optima ---------- */

.optima-ch { --route-in: 50%; --route-out: 8%; }
.optima-ch__grid { display: grid; gap: clamp(2rem, 4vw, 5rem); align-items: center; }
.optima-ch__kicker {
    font-size: var(--fs-small);
    font-stretch: 100%;
    font-weight: 500;
    color: rgba(232, 237, 239, 0.7);
    margin-bottom: 1.25rem;
}
.optima-ch__name { font-size: var(--fs-h2); }
.optima-ch__head { display: flex; align-items: center; gap: clamp(1rem, 2vw, 2rem); }
.app-icon {
    width: clamp(64px, 7vw, 150px);
    height: auto;
    aspect-ratio: 1;
    border-radius: 22%;
    flex-shrink: 0;
}
.optima-ch__sub {
    margin-top: 1rem;
    font-size: var(--fs-lede);
    color: rgba(232, 237, 239, 0.8);
}
.optima-ch__intro .btn { margin-top: clamp(1.5rem, 3vw, 3rem); }
.optima-ch__legs {
    list-style: none;
    margin: 0;
    padding: 0;
    display: grid;
    gap: clamp(1.5rem, 3vw, 3rem);
}
.optima-ch__for { font-size: var(--fs-small); color: rgba(232, 237, 239, 0.7); }

/* ---------- HOME: contatti ---------- */

.contact {
    min-height: 85vh;
    min-height: 85svh;
    display: flex;
    align-items: center;
    --route-in: 8%;
}
.contact .leg--dest { --stop-top: 0.55em; }
.contact h2 { font-size: calc(var(--fs-h2) * 1.15); }
.contact__text { margin-top: 1.25rem; font-size: var(--fs-lede); color: var(--grigio); }
.contact__actions {
    margin-top: clamp(2rem, 3.5vw, 3.5rem);
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 1rem 2rem;
}
.contact__mail { font-size: var(--fs-body); }

/* ---------- Footer ---------- */

.footer {
    background: var(--asfalto);
    color: rgba(232, 237, 239, 0.72);
    padding-block: clamp(3rem, 6vw, 6rem) max(clamp(2rem, 4vw, 4rem), env(safe-area-inset-bottom));
    font-size: var(--fs-small);
}
.footer__inner {
    display: grid;
    gap: 2rem;
}
.footer__brand { width: clamp(140px, 14vw, 280px); }
.footer__legal {
    display: flex;
    flex-wrap: wrap;
    gap: 0.25rem 1.75rem;
}
.footer__legal a {
    display: inline-flex;
    align-items: center;
    min-height: 44px;
    text-decoration: none;
}
.footer__legal a:hover { color: var(--nebbia); text-decoration: underline; text-underline-offset: 0.3em; }
.footer__meta { line-height: 1.7; max-width: none; }
.footer__meta a { text-decoration: none; }
.footer__meta a:hover { text-decoration: underline; }

/* ---------- OPTIMA: hero ---------- */

.o-hero {
    min-height: 100vh;
    min-height: 100svh;
    padding-block: 0 clamp(3rem, 10svh, 9rem);
    display: flex;
    flex-direction: column;
    gap: clamp(3rem, 8svh, 7rem);
    --route-out: 50%;
}
.o-hero .brand { width: clamp(140px, 16vw, 320px); }
.o-hero__grid { display: grid; gap: clamp(2rem, 5vw, 6rem); align-items: center; flex: 1; }
.o-hero__media { position: relative; justify-self: start; }
.o-hero__media .app-icon {
    width: clamp(120px, 24vw, 460px);
    box-shadow: 0 2.5rem 6rem -2rem rgba(1, 185, 245, 0.35);
}
.o-hero__media .stop--start { left: 50%; top: 92%; }
.o-hero h1 { font-size: calc(var(--fs-h1) * 1.25); }
.o-hero__tagline { margin-top: 0.75rem; font-size: var(--fs-lede); font-weight: 600; color: var(--traverse); }
.o-hero__text { margin-top: 1.5rem; font-size: var(--fs-lede); color: rgba(232, 237, 239, 0.8); }

.store {
    margin-top: clamp(2rem, 4vw, 3.5rem);
}
.store__soon {
    display: inline-block;
    padding: 0.35em 0.8em;
    border-radius: 4px;
    background: var(--segnaletica);
    color: var(--notte);
    font-size: var(--fs-small);
    font-weight: 700;
}
.store__badges { display: flex; flex-wrap: wrap; gap: 0.75rem; margin-top: 1rem; }
.store__badge {
    padding: 0;
    border: 0;
    background: none;
    cursor: pointer;
    border-radius: 9px;
    opacity: 0.9;
    transition: opacity 0.2s;
}
.store__badge:hover { opacity: 1; }
.store__badge img { height: clamp(48px, 3.4vw, 68px); width: auto; border-radius: 8px; }
.store__badge--google img { box-shadow: 0 0 0 1px rgba(232, 237, 239, 0.35); }
.store__note { margin-top: 1rem; font-size: var(--fs-small); color: rgba(232, 237, 239, 0.85); }

/* ---------- OPTIMA: il viaggio delle funzionalità ---------- */

.trip { --route-in: 50%; padding-bottom: calc(var(--space) * 1.6); }
.trip__title { max-width: 14em; }
.trip__intro { margin-top: 1.25rem; font-size: var(--fs-lede); color: var(--grigio); }
.trip__legs {
    list-style: none;
    margin: clamp(3rem, 7vw, 8rem) 0 0;
    padding: 0;
    display: grid;
    gap: clamp(3rem, 7vw, 8rem);
}
.trip .leg { --stop-top: calc(var(--icon) / 2); --icon: clamp(32px, 2.6vw, 52px); }
.trip__icon {
    width: var(--icon);
    height: var(--icon);
    color: var(--asfalto);
    margin-bottom: 1rem;
}
.trip__icon svg { width: 100%; height: 100%; }
.trip h3 { margin-bottom: 0.6rem; }
.trip p { color: var(--grigio); }
.leg--main h3 { font-size: calc(var(--fs-h3) * 1.45); }
.leg--main p { font-size: var(--fs-lede); color: var(--asfalto); }
.leg--main .trip__icon { color: var(--traverse); }

/* ---------- Mobile (sotto 768px): la linea corre sul margine ---------- */

@media (max-width: 767.98px) {
    .chapter[data-route] .wrap,
    .pin__frame .wrap {
        padding-left: calc(var(--rail) + var(--leg-pad));
    }
    .hero, .vision, .optima-ch, .contact, .o-hero, .trip {
        --route-in: 18px;
        --route-out: 18px;
    }
    .topbar { padding-left: 0; }
    .hero .topbar, .o-hero .topbar { margin-left: calc(-1 * var(--leg-pad)); }
    .topbar__nav { gap: 1rem; }
    .pin--vision { --pin-h: 170vh; --pin-h-s: 170svh; }
    .pin--optima { --pin-h: 210vh; --pin-h-s: 210svh; }
    .optima-ch__grid { gap: 1.75rem; }
    .optima-ch__legs { gap: 1.1rem; font-size: var(--fs-body); }
    .optima-ch__intro .btn { margin-top: 1.25rem; }
    .o-hero__media .app-icon { width: 112px; }
    .o-hero__media .stop--start { left: calc(-1 * var(--leg-pad)); top: 50%; }
}

/* ---------- Tablet (da 768px) ---------- */

@media (min-width: 768px) {
    .pin--vision { --pin-h: 220vh; --pin-h-s: 220svh; }
    .pin--optima { --pin-h: 260vh; --pin-h-s: 260svh; }
    .vision__grid { grid-template-columns: repeat(12, 1fr); }
    .vision__title { grid-column: 1 / 7; }
    .vision__legs { grid-column: 7 / 13; padding-left: var(--leg-pad); }
    .vision { --route-out: 2.5%; }
    .optima-ch { --route-in: 2.5%; }
    .footer__inner { grid-template-columns: auto 1fr; align-items: start; column-gap: 4rem; }
    .footer__legal, .footer__meta { grid-column: 2; }
    .footer__brand { grid-row: 1 / span 2; }

    .trip__legs > .leg { width: 46%; }
    .trip__legs > .leg:nth-child(even) { margin-left: calc(54% - var(--leg-pad)); }
    .trip__legs > .leg--main { width: 58%; }
}

/* ---------- Laptop e oltre (da 1024px) ---------- */

@media (min-width: 1024px) {
    .vision__legs { grid-column: 8 / 13; padding-left: 0; }

    .vision { --route-out: 50%; }
    .optima-ch { --route-in: 50%; }
    .optima-ch__grid { grid-template-columns: repeat(12, 1fr); }
    .optima-ch__legs-wrap { grid-column: 1 / 6; grid-row: 1; }
    .optima-ch__intro { grid-column: 7 / 13; grid-row: 1; }
    .o-hero__grid { grid-template-columns: 7fr 5fr; }
    .o-hero__media { justify-self: center; order: 2; }
}

/* ---------- Schermi bassi e movimento ridotto: niente capitoli fissati ---------- */

@media (max-height: 700px) {
    .pin { height: auto; }
    .pin__frame { position: relative; height: auto; padding-block: var(--space); }
}

@media (prefers-reduced-motion: reduce) {
    .pin { height: auto; }
    .pin__frame { position: relative; height: auto; padding-block: var(--space); }
    .hero__body { transform: none; opacity: 1; }
    .has-motion .hero__title .line > span,
    .has-motion .hero__lede { animation: none; transform: none; opacity: 1; }
    .has-motion .leg__body { opacity: 1; transform: none; transition: none; }
    .stop, .route__tip { transition: none; }
}