/* ============================================================
   PONTE VERSO IL DESIGN SYSTEM
   I nomi storici del sito restano — 1777 righe li usano — ma non
   portano piu' un colore: puntano ai ruoli di tokens.css, che
   dichiarano chiaro e scuro sulla stessa riga con light-dark().
   Non esistono due liste da tenere allineate, quindi non esiste il
   modo di aggiornarne una e dimenticare l'altra.

   Tre token spariscono qui:
     --glass-bg, --card-gradient   erano morti: definiti e mai usati.
                                   La ricetta del vetro e' --glass-*,
                                   il velo dorato e' --accent-veil.
     --glass-border                il nome esiste gia' nel design
                                   system con un altro significato (il
                                   bordo chiaro del vetro, non il filo
                                   scuro). L'unico uso, .social-icon,
                                   ora legge --border.
   --accent-glow e --font-script non sono ridichiarati: li porta
   tokens.css con gli stessi nomi e la loro meta' scura.
   ============================================================ */
:root {
    --bg-primary: var(--bg);
    --bg-secondary: var(--bg-alt);
    --color-primary: var(--accent);
    --color-secondary: var(--accent-strong);
    --text-main: var(--fg);
    --text-muted: var(--fg-muted);
    --font-sans: var(--font-ui);
}

.font-script {
    font-family: var(--font-script);
    font-weight: 400;
    font-style: normal;
    font-variant-ligatures: normal;
}

.altesse-script {
    font-family: var(--font-script);
    font-weight: 400;
    font-style: normal;
    font-variant-ligatures: normal;
}

/* Global Reset & Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-tap-highlight-color: transparent;
}

/* ============================================================
   NAVIGAZIONE NATIVA FRA PAGINE
   Il sito e' multi-pagina (index, projects, le gallerie): questa riga
   basta a far dissolvere il browser stesso fra un documento e l'altro,
   senza una riga di JS. Dove non e' supportata (Safari, Firefox) il
   browser la ignora e naviga come sempre: non e' un requisito, e' un
   bonus che nessuno deve mantenere. Coesiste con #transition-overlay,
   che resta la rete di sicurezza sotto e sopra i browser che gia' lo
   sanno fare da soli.
   ============================================================ */
@view-transition {
    navigation: auto;
}

/* Chi ha chiesto meno movimento lo ha chiesto anche qui: la dissolvenza
   nativa e' comunque movimento. */
@media (prefers-reduced-motion: reduce) {
    @view-transition {
        navigation: none;
    }
}

/* ============================================================
   FOCUS DA TASTIERA — un solo posto, non venti
   Il sistema aveva gia' --focus-ring/--focus-halo ma li usava solo per
   l'interruttore del tema: ogni altro link e bottone cadeva sull'anello
   di default del browser. Una riga sola li porta tutti alla stessa
   grammatica visiva; :focus-visible non si accende al click del mouse,
   solo alla tastiera, quindi non aggiunge rumore a chi usa il dito.
   ============================================================ */
a:focus-visible,
button:focus-visible,
input:focus-visible {
    outline: 2px solid var(--focus-ring);
    outline-offset: 3px;
    border-radius: var(--r-sm);
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
    background-color: var(--bg-primary);
    color: var(--text-main);
    font-family: var(--font-sans);
}

body {
    min-height: 100vh;
    line-height: 1.6;
    overflow-x: hidden;
    padding: 1.5rem;
    position: relative;
}

body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    pointer-events: none;
    z-index: -1;
    background-image: var(--grain-page);
    opacity: var(--grain-opacity);
    mix-blend-mode: var(--grain-blend);
}

/* Base Headings & Typography */
h1,
h2,
h3 {
    font-weight: 700;
    line-height: 1.2;
}

h2 {
    font-size: 1.8rem;
    margin-bottom: 1.5rem;
    color: var(--text-main);
    display: table;
    margin-left: auto;
    margin-right: auto;
}

/* Layout Sections */
section {
    margin-bottom: 2.5rem;
    position: relative;
}

/* --- Global Animating Elements --- */
#anim-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    pointer-events: none;
    z-index: 1100;
    opacity: 0;
    transition: opacity 0.25s ease-out;
}

#anim-container.ready {
    opacity: 1;
}

#anim-pill {
    position: absolute;
    top: 0;
    left: 0;
    background-color: var(--glass-fill);
    background-image: var(--glass-sheen);
    border: 1px solid var(--glass-border);
    border-radius: 60px;
    backdrop-filter: var(--glass-blur-thin);
    -webkit-backdrop-filter: var(--glass-blur-thin);
    opacity: 0;
    /* JS will control this */
    box-shadow: var(--glass-shadow-sm);
    transform-origin: top left;
    will-change: transform, width, height, opacity;
}

/* --- Unified Liquid Glass Nav Bar --- */
#unified-nav {
    position: fixed;
    top: 1.5rem;
    left: 1.5rem;
    right: 1.5rem;
    height: 64px;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 10px 0 12px;
    /* Perfect centered spacing on mobile */
    border-radius: 60px;
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--dur-morph) var(--ease-drop);
}

#unified-nav .nav-bg {
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    border-radius: 60px;
    background: var(--glass-fill);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    box-shadow:
        0 4px 24px var(--shadow-ambient),
        0 1px 0 var(--shadow-inset-top) inset,
        0 -1px 0 var(--shadow-inset-bottom) inset;
    transition: background-color var(--dur-base), border-color var(--dur-base), box-shadow var(--dur-base), opacity var(--dur-base);
    z-index: -1;
}

#unified-nav .nav-bg::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: inherit;
    background: var(--glass-sheen);
    pointer-events: none;
}

#unified-nav.visible {
    opacity: 1;
    pointer-events: none;
    /* Let clicks pass through empty spaces, children will enable pointer-events if needed */
}


#anim-pic {
    position: absolute;
    top: 0;
    left: 0;
    width: 200px;
    height: 200px;
    border-radius: 50%;
    object-fit: cover;
    transform-origin: top left;
    will-change: transform;
    pointer-events: none;
    /* Prevent blocking clicks/hovers */
}

#anim-title {
    position: absolute;
    top: 0;
    left: 0;
    margin: 0;
    /* Fluida, non due sole taglie: a nowrap fisso "Leonardo Chiesu" a 3rem
       (325px) supera gia' i telefoni Android piu' stretti (360px, 312px
       disponibili) e lascia solo 2px di margine sugli iPhone standard. Il
       morph FLIP non se ne accorge: misura i rettangoli a runtime, non un
       rem fisso, quindi puo' restringersi qui senza disallinearsi da
       #hero-pl-container .title-pl, che deve restare identico. */
    font-size: clamp(2.1rem, 12vw, 3rem);
    line-height: 1.2;
    font-weight: 700;
    color: var(--text-main);
    transform-origin: top left;
    will-change: transform;
    white-space: nowrap;
    pointer-events: none;
    /* Prevent blocking clicks/hovers */
}

/* --- Placeholders --  */
.pic-pl {
    width: 200px;
    height: 200px;
    border-radius: 50%;
    visibility: hidden;
}

.title-pl {
    visibility: hidden;
    white-space: nowrap;
    font-weight: 700;
    font-family: var(--font-sans);
    line-height: 1.2;
    width: max-content;
    height: auto;
}

#hero-pl-container .title-pl {
    /* Deve restare identico a #anim-title: e' la sagoma su cui l'animazione
       misura dove atterrare. */
    font-size: clamp(2.1rem, 12vw, 3rem);
}

#about-pl-container .title-pl {
    font-size: 1.5rem;
}

/* 1. Hero Section */
#hero {
    min-height: 90vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding-bottom: 6rem;
    box-sizing: border-box;
}

#hero-pl-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 2rem;
    width: 100%;
}

/* Nav Placeholders — live inside #unified-nav */
#nav-pl-container {
    display: flex;
    flex-direction: row;
    align-items: center;
    gap: 0.75rem;
    pointer-events: none;
    flex-shrink: 0;
}

#nav-pl-container .pic-pl {
    width: 44px;
    height: 44px;
}

#nav-pl-container .title-pl {
    font-size: 1.1rem;
}

/* About Me Placeholders */
#about-pl-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2rem;
    width: 100%;
    margin-top: 2rem;
}

#hero p {
    color: var(--text-muted);
    font-size: 1.1rem;
    max-width: 90%;
    margin-bottom: 2rem;
}

/* 2. Projects Section (Stacking Cards) */
.projects-section {
    position: relative;
}

.projects-section h2 {
    position: sticky;
    top: 80px;
    /* Moved higher to avoid card hover overlap */
    z-index: 20;
    padding: 10px 0;
}

.projects-cards-container {
    display: flex;
    flex-direction: column;
    position: relative;
    padding-bottom: 1rem;
    gap: 40px;
    /* Small gap on mobile to make them pretty close */
}

.project-card {
    position: sticky;
    top: 160px;
    /* Title is at 95px + height, this gives breathing room */
    z-index: 1;
    transform-origin: center center;
    will-change: transform, opacity;
    width: 100%;
    height: 340px;
    background: var(--glass-sheen), var(--glass-fill);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    border-radius: 24px;
    padding: 1.5rem 1.5rem 2.2rem 1.5rem;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    box-shadow:
        0 8px 24px var(--shadow-ambient),
        0 1px 0 var(--shadow-inset-top) inset,
        0 -1px 0 var(--shadow-inset-bottom) inset;
    transition: transform var(--dur-base) ease, box-shadow var(--dur-base) ease, border-color var(--dur-base) ease;
    box-sizing: border-box;
    flex-shrink: 0;
    text-decoration: none;
    color: inherit;
}

.project-card-signature {
    position: absolute;
    bottom: 1.25rem;
    right: 1.5rem;
    height: 22px;
    width: auto;
    opacity: 0.65;
    pointer-events: none;
    transition: opacity var(--dur-fast) ease;
    z-index: 5;
}

.project-card:hover .project-card-signature,
.project-card.tap-active .project-card-signature {
    opacity: 0.95;
}

.project-card::before,
.workflow-card::before {
    content: '';
    position: absolute;
    inset: 0;
    pointer-events: none;
    background-image: var(--grain-card);
    opacity: var(--grain-opacity);
    mix-blend-mode: var(--grain-blend);
    z-index: 1;
    border-radius: inherit;
}

.project-img-wrapper {
    width: 100%;
    order: -1;
    flex-grow: 1;
    margin-bottom: 1rem;
    border-radius: 14px;
    overflow: hidden;
    position: relative;
    background: var(--bg-alt);
    border: 1px solid var(--border);
    z-index: 2;
}

.project-img-wrapper::after {
    content: '';
    position: absolute;
    inset: 0;
    /* Fisso di proposito: e' l'incasso sopra la foto, e una foto non cambia col tema. */
    box-shadow: inset 0 4px 12px rgba(0, 0, 0, 0.2);
    pointer-events: none;
    z-index: 2;
}

.project-img-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    /* Fisso di proposito: sta al posto della foto mancante, non su una superficie del tema. */
    background: radial-gradient(circle at center, rgba(255, 255, 255, 0.05) 0%, rgba(0, 0, 0, 0) 70%);
}

.project-img-placeholder .placeholder-icon {
    color: var(--text-muted);
    opacity: 0.4;
    transition: opacity var(--dur-fast) ease;
}

.project-card:hover .project-img-placeholder .placeholder-icon {
    opacity: 0.8;
}

.project-img-wrapper img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.project-card h3 {
    font-family: var(--font-script);
    font-size: 1.8rem;
    font-weight: 400;
    color: var(--text-main);
    margin-bottom: 0.25rem;
    position: relative;
    z-index: 2;
}

.project-card p {
    color: var(--text-muted);
    font-size: 0.95rem;
    margin-bottom: 0;
    position: relative;
    z-index: 2;
}

/* 3. Workflow Section (Horizontal Scroll/Swipe) */
#workflow {
    overflow: visible;
}

.workflow-section-header {
    width: 100%;
    box-sizing: border-box;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 0 1.5rem;
    margin-bottom: 2rem;
    gap: 1.25rem;
}

.workflow-intro {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.85rem;
}

.workflow-description {
    color: var(--text-muted);
    font-size: 0.95rem;
    line-height: 1.6;
    margin: 0;
    max-width: 500px;
}

.workflow-signature {
    width: 130px;
    height: auto;
    opacity: 0.85;
    transition: opacity var(--dur-fast) ease;
    display: block;
}

.workflow-signature:hover {
    opacity: 1;
}

.workflow-sticky-container {
    position: relative;
    width: 100%;
}

.workflow-horizontal-scroll {
    width: 100%;
}

@media (max-width: 767px) {
    .workflow-horizontal-scroll {
        display: flex;
        flex-direction: column;
    }

    .workflow-section-header {
        display: contents;
    }

    .workflow-section-header h2 {
        order: 1;
        margin-bottom: 1.5rem;
        padding: 0 1.5rem;
        text-align: center;
    }

    .workflow-slider {
        order: 2;
    }

    .workflow-intro {
        order: 3;
        padding: 0 1.5rem;
        margin-top: 1.5rem;
    }
}

.workflow-slider {
    display: flex;
    gap: 1.25rem;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    padding: 0.5rem 7.5% 1.5rem 7.5%;
    scrollbar-width: none;
    /* Firefox */
    -ms-overflow-style: none;
    /* IE/Edge */
}

/* Hide scrollbar for Chrome/Safari */
.workflow-slider::-webkit-scrollbar {
    display: none;
}

.workflow-spacer-card {
    display: none;
}

.workflow-card {
    flex: 0 0 85%;
    scroll-snap-align: center;
    background: var(--glass-sheen), var(--glass-fill);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    border-radius: 24px;
    padding: 1.8rem 1.6rem;
    transition: border-color var(--dur-base) ease, box-shadow var(--dur-base) ease;
    box-shadow:
        0 8px 24px var(--shadow-ambient),
        0 1px 0 var(--shadow-inset-top) inset,
        0 -1px 0 var(--shadow-inset-bottom) inset;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    gap: 0.75rem;
    position: relative;
    will-change: transform;
}

.workflow-card:active {
    transform: scale(0.98);
    border-color: var(--color-primary);
}


.card-num {
    font-family: var(--font-script);
    font-size: 4rem;
    font-weight: 400;
    line-height: 1;
    color: var(--color-primary);
    margin-bottom: 0;
    opacity: 0.9;
}

.workflow-card h3 {
    font-size: 1.4rem;
    margin-bottom: 0.25rem;
    color: var(--text-main);
    position: relative;
    z-index: 2;
}

.workflow-card p {
    color: var(--text-muted);
    font-size: 0.95rem;
    margin-bottom: 0;
    position: relative;
    z-index: 2;
}

/* 4. About Me Section */
#about {
    min-height: auto;
    padding-top: 2rem;
    padding-bottom: 3rem;
}

/* 5. Social Links Section */
#social-links {
    min-height: auto;
    padding-top: 2rem;
}

/* Laptop / Desktop Enhancements (Media Query) */
@media (min-width: 768px) {
    body {
        padding: 0;
    }

    #hero,
    #projects,
    #about,
    #social-links {
        max-width: 1200px;
        margin-left: auto;
        margin-right: auto;
        padding-left: 4rem;
        padding-right: 4rem;
    }

    #hero {
        min-height: 90vh;
        padding-bottom: 0;
    }

    .hero-subtitle {
        font-size: 1.25rem;
        max-width: 600px;
        margin-bottom: 0;
    }

    #anim-title {
        font-size: 5rem;
    }

    #hero-pl-container .title-pl {
        font-size: 5rem;
    }

    #about-pl-container .title-pl {
        font-size: 2.5rem;
    }

    #hero .pic-pl {
        width: 300px;
        height: 300px;
    }

    #unified-nav {
        top: 2rem;
        left: 4rem;
        right: 4rem;
        height: 72px;
        padding: 0 14px 0 16px;
        /* Perfect centered spacing on desktop */
    }

    #nav-pl-container .pic-pl {
        width: 50px;
        height: 50px;
    }

    #nav-pl-container .title-pl {
        font-size: 1.35rem;
    }

    #about-pl-container {
        flex-direction: row;
        justify-content: space-between;
        padding: 0 5%;
        margin-top: 5rem;
        align-items: center;
    }

    .about-right-side {
        align-items: flex-start;
        text-align: left;
    }

    #about-pl-container .pic-pl {
        width: 300px;
        height: 300px;
        border-radius: 50%;
        flex-shrink: 0;
    }

    h2 {
        font-size: 3rem;
        margin-bottom: 2.5rem;
    }

    .projects-section h2 {
        top: 100px;
        /* Moved higher to avoid card hover overlap */
    }

    /* 2. Projects Section Layout */
    .projects-cards-container {
        gap: 250px;
        /* Generous gap on desktop for scrolling depth */
    }

    .projects-cards-container .project-card {
        max-width: 800px;
        margin-left: auto;
        margin-right: auto;
        padding: 2rem;
        height: 480px;
        top: 200px;
    }

    .projects-cards-container .project-img-wrapper {
        max-height: 340px;
    }

    .workflow-section-header {
        max-width: 1200px;
        margin-left: auto;
        margin-right: auto;
        padding-left: 4rem;
        padding-right: 4rem;
        display: flex;
        flex-direction: row;
        justify-content: space-between;
        align-items: flex-end;
        text-align: left;
        gap: 4rem;
        margin-bottom: 2.5rem;
    }

    .workflow-section-header h2 {
        margin: 0;
        display: block;
    }

    .workflow-intro {
        flex: 0 1 500px;
        align-items: flex-start;
        text-align: left;
        gap: 0.5rem;
    }

    .workflow-signature {
        width: 160px;
        align-self: flex-end;
        margin-top: -0.5rem;
    }

    /* 3. Workflow Section Sticky Scroll Layout */
    #workflow.workflow-scroll-wrapper {
        height: 200vh;
        /* Taller scroll track for the scroll interaction */
        margin-top: 0;
        margin-bottom: 0;
        background: linear-gradient(180deg, var(--bg-primary) 0%, var(--bg-secondary) 50%, var(--bg-primary) 100%);
    }

    .workflow-sticky-container {
        position: sticky;
        top: 17.5vh;
        height: 65vh;
        display: flex;
        align-items: center;
        overflow: hidden;
    }

    .workflow-horizontal-scroll {
        width: 100%;
        max-width: 100%;
        margin: 0;
        padding: 0;
        overflow: visible;
    }

    .workflow-slider {
        display: flex;
        gap: 3rem;
        overflow-x: visible;
        /* Let JS transform it */
        scroll-snap-type: none;
        /* Disable native snapping on desktop */
        padding: 0 0 0 33vw;
        will-change: transform;
    }

    .workflow-card {
        flex: 0 0 420px;
        /* Fixed card width on desktop */
        height: 280px;
        display: flex;
        flex-direction: column;
        justify-content: flex-start;
        padding: 2.2rem 2rem;
    }

    .workflow-spacer-card {
        display: block;
        flex: 0 0 calc(33vw - 3rem);
        opacity: 0;
        pointer-events: none;
    }
}

/* --- Global Scroll Indicator, Hover & Reveal Animations --- */
/* Nascosto solo se c'e' il JS che lo riaccendera': la classe la mette lo
   script nel <head>, prima del primo pixel. Senza JS non si nasconde niente,
   perche' nessuna animazione vale una pagina bianca. */
.js-reveal .reveal-item {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity var(--dur-slow) var(--ease-drop), transform var(--dur-slow) var(--ease-drop);
    will-change: opacity, transform;
}

.js-reveal .reveal-item.visible {
    opacity: 1;
    transform: translateY(0);
}

.hero-subtitle {
    color: var(--text-muted);
    font-size: 1rem;
    max-width: 85%;
    text-align: center;
    margin-top: 1.5rem;
    margin-bottom: 2rem;
    line-height: 1.6;
    transition-delay: 0.1s;
}

/* Scroll Indicator - Camera to Film Roll */
#scroll-indicator {
    position: absolute;
    bottom: 2.5rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    opacity: 0.8;
    transition: opacity var(--dur-base) ease-out;
    pointer-events: none;
}

.camera-scroll-icon {
    width: 32px;
    height: 40px;
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.camera-body {
    width: 32px;
    height: 24px;
    border: 2px solid var(--text-muted);
    border-radius: 4px;
    position: relative;
    box-sizing: border-box;
    transition: all var(--dur-base) ease;
    background: transparent;
    z-index: 2;
}

.camera-body::before {
    content: '';
    position: absolute;
    top: -6px;
    left: 8px;
    width: 12px;
    height: 4px;
    border: 2px solid var(--text-muted);
    border-bottom: none;
    border-radius: 4px 4px 0 0;
    box-sizing: border-box;
}

.camera-lens {
    width: 12px;
    height: 12px;
    border: 2px solid var(--text-muted);
    border-radius: 50%;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    box-sizing: border-box;
    background: var(--bg-primary);
}

.film-roll {
    width: 16px;
    height: 0;
    background-color: transparent;
    border-left: 2px dashed var(--text-muted);
    border-right: 2px dashed var(--text-muted);
    position: absolute;
    top: 22px;
    left: 50%;
    transform: translateX(-50%);
    opacity: 0;
    animation: film-scroll 2s infinite ease-in-out;
    z-index: 1;
}

@keyframes film-scroll {
    0% {
        height: 0;
        opacity: 0;
        top: 22px;
    }

    10% {
        opacity: 1;
    }

    50% {
        height: 24px;
        opacity: 1;
        top: 22px;
    }

    90% {
        opacity: 0;
    }

    100% {
        height: 0;
        opacity: 0;
        top: 46px;
    }
}


/* Hover effects for project cards */
.project-card {
    transition: transform var(--dur-base) var(--ease-drop), opacity var(--dur-base) var(--ease-drop), box-shadow var(--dur-base) ease, border-color var(--dur-base) ease;
}


/* About left side layout */
.about-left-side {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.75rem;
    flex-shrink: 0;
}

/* About right side layout */
.about-right-side {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    width: 100%;
    max-width: 600px;
    align-items: center;
}

/* About me description */
.about-content {
    width: 100%;
    font-size: 1.15rem;
    line-height: 1.8;
    color: var(--text-muted);
}

.about-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
    width: 100%;
}

.about-list-item {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    background: var(--glass-sheen), var(--glass-fill);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    padding: 1.25rem 1.5rem;
    box-shadow:
        0 8px 24px var(--shadow-ambient),
        0 1px 0 var(--shadow-inset-top) inset,
        0 -1px 0 var(--shadow-inset-bottom) inset;
    transition: transform var(--dur-fast) var(--ease-drop), border-color var(--dur-fast) ease, box-shadow var(--dur-fast) ease;
    width: 100%;
}

.about-list-item:hover {
    transform: translateX(8px);
    border-color: var(--color-primary);
    box-shadow: 0 10px 25px var(--accent-glow);
}

.about-bullet {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    box-shadow: 0 0 10px var(--accent-glow);
    flex-shrink: 0;
}

.about-item-text {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    text-align: left;
}

.about-item-text strong {
    font-size: 1.1rem;
    color: var(--text-main);
    font-weight: 700;
}

.about-item-text p {
    color: var(--text-muted);
    font-size: 0.95rem;
    margin: 0;
    line-height: 1.4;
}

/* Social links grid & cards */
#social-links {
    text-align: center;
    padding-bottom: 4rem;
}

.section-desc {
    color: var(--text-muted);
    max-width: 600px;
    margin: 0 auto 3.5rem auto;
    font-size: 1.1rem;
    line-height: 1.6;
}

.social-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
    max-width: 800px;
    margin: 0 auto;
    padding: 0 1rem;
}

.social-card {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    background: var(--glass-sheen), var(--glass-fill);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    padding: 1.5rem;
    text-decoration: none;
    color: inherit;
    box-shadow:
        0 8px 24px var(--shadow-ambient),
        0 1px 0 var(--shadow-inset-top) inset,
        0 -1px 0 var(--shadow-inset-bottom) inset;
    transition: transform var(--dur-base) var(--ease-drop), border-color var(--dur-base) ease, box-shadow var(--dur-base) ease;
    text-align: left;
}

.social-card:hover,
.social-card.tap-active {
    transform: translateY(-6px) scale(1.02);
    box-shadow: var(--glass-shadow-lift);
}

.social-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: var(--bg-raised);
    border: 1px solid var(--border);
    transition: transform var(--dur-base) var(--ease-drop), background var(--dur-fast) ease, border-color var(--dur-fast) ease, color var(--dur-fast) ease;
    color: var(--text-muted);
}

.social-card:hover .social-icon,
.social-card.tap-active .social-icon {
    transform: rotate(8deg) scale(1.1);
}

.social-card.linkedin:hover,
.social-card.linkedin.tap-active {
    border-color: var(--ch-linkedin);
    box-shadow: 0 15px 35px var(--shadow-ambient);
}

.social-card.linkedin:hover .social-icon,
.social-card.linkedin.tap-active .social-icon {
    color: var(--ch-linkedin);
    background: var(--bg-raised);
    border-color: var(--ch-linkedin);
}

.social-card.instagram:hover,
.social-card.instagram.tap-active {
    border-color: var(--ch-instagram);
    box-shadow: 0 15px 35px var(--shadow-ambient);
}

.social-card.instagram:hover .social-icon,
.social-card.instagram.tap-active .social-icon {
    color: var(--ch-instagram);
    background: var(--bg-raised);
    border-color: var(--ch-instagram);
}

.social-card.youtube:hover,
.social-card.youtube.tap-active {
    border-color: var(--ch-youtube);
    box-shadow: 0 15px 35px var(--shadow-ambient);
}

.social-card.youtube:hover .social-icon,
.social-card.youtube.tap-active .social-icon {
    color: var(--ch-youtube);
    background: var(--bg-raised);
    border-color: var(--ch-youtube);
}

.social-card.email:hover,
.social-card.email.tap-active {
    border-color: var(--color-primary);
    box-shadow: 0 15px 35px var(--accent-glow);
}

.social-card.email:hover .social-icon,
.social-card.email.tap-active .social-icon {
    color: var(--color-primary);
    background: var(--accent-veil);
    border-color: var(--color-primary);
}

.social-info h3 {
    font-size: 1.25rem;
    margin-bottom: 0.25rem;
    color: var(--text-main);
}

.social-info p {
    font-size: 0.95rem;
    color: var(--text-muted);
}

@media (min-width: 600px) {
    .social-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (min-width: 768px) {
    .about-content {
        font-size: 1.3rem;
        max-width: 600px;
    }
}

/* --- More Projects Button --- */
.projects-more-container {
    text-align: center;
    margin-top: 2rem;
    margin-bottom: 1rem;
}

.btn-more-projects {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.6rem;
    padding: 0.75rem 1.75rem;
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--text-main);
    background: var(--glass-sheen), var(--glass-fill);
    border: 1px solid var(--glass-border);
    border-radius: 60px;
    text-decoration: none;
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    box-shadow:
        0 4px 24px var(--shadow-ambient),
        0 1px 0 var(--shadow-inset-top) inset,
        0 -1px 0 var(--shadow-inset-bottom) inset;
    transition: transform var(--dur-base) var(--ease-drop), border-color var(--dur-base) ease, box-shadow var(--dur-base) ease, color var(--dur-base) ease;
}

.btn-more-projects .arrow {
    transition: transform var(--dur-fast) ease;
    display: inline-block;
}

.btn-more-projects:hover,
.btn-more-projects.tap-active {
    border-color: var(--color-primary);
    box-shadow: 0 15px 35px var(--accent-glow);
    transform: translateY(-6px) scale(1.02);
}

.btn-more-projects:hover .arrow,
.btn-more-projects.tap-active .arrow {
    transform: translateX(5px);
}

.btn-more-projects:active {
    transform: translateY(-2px) scale(1);
}

@media (min-width: 768px) {
    .btn-more-projects {
        font-size: 1.15rem;
        padding: 0.85rem 2.25rem;
    }
}

/* --- Projects Page Layout --- */
.projects-page-container {
    max-width: 1200px;
    margin: 4rem auto;
    padding: 0 2rem;
}

.projects-page-header {
    text-align: center;
    margin-bottom: 4rem;
}

.projects-page-header h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
    color: var(--text-main);
}

.btn-back-home {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.75rem;
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-main);
    background: var(--glass-sheen), var(--glass-fill);
    border: 1px solid var(--glass-border);
    border-radius: 60px;
    text-decoration: none;
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    box-shadow:
        0 4px 24px var(--shadow-ambient),
        0 1px 0 var(--shadow-inset-top) inset,
        0 -1px 0 var(--shadow-inset-bottom) inset;
    transition: transform var(--dur-base) var(--ease-drop), border-color var(--dur-base) ease, box-shadow var(--dur-base) ease, color var(--dur-base) ease;
    margin-bottom: 3rem;
}

.btn-back-home:hover,
.btn-back-home.tap-active {
    border-color: var(--color-primary);
    box-shadow: 0 15px 35px var(--accent-glow);
    transform: translateY(-6px) scale(1.02);
    color: var(--text-main);
}

.btn-back-home:active {
    transform: translateY(-2px) scale(1);
}

.projects-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
}

.projects-grid .project-card {
    position: relative;
    top: auto;
    width: 100%;
    margin-bottom: 0 !important;
}

@media (min-width: 768px) {
    .projects-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .projects-grid .project-card {
        height: 480px;
    }

    .projects-grid .project-img-wrapper {
        max-height: 280px;
    }

    .projects-page-header h1 {
        font-size: 4rem;
    }
}

@media (min-width: 1024px) {
    .projects-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* --- Burger Menu & Full Screen Overlay --- */
#burger-menu-container {
    display: flex;
    align-items: center;
    flex-shrink: 0;
}

#burger-btn {
    background: var(--glass-sheen), var(--glass-fill);
    border: 1px solid var(--glass-border);
    border-radius: 50%;
    width: 44px;
    height: 44px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 5px;
    cursor: pointer;
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    box-shadow:
        0 4px 24px var(--shadow-ambient),
        0 1px 0 var(--shadow-inset-top) inset,
        0 -1px 0 var(--shadow-inset-bottom) inset;
    transition: all var(--dur-fast) var(--ease-drop);
    flex-shrink: 0;
    pointer-events: auto;
    /* Explicitly allow clicks on the burger button */
}

#burger-btn:hover {
    border-color: var(--color-primary);
    box-shadow: 0 10px 20px var(--accent-glow), 0 1px 0 var(--shadow-inset-top) inset;
    transform: scale(1.08) rotate(8deg);
}

.burger-line {
    width: 20px;
    height: 2px;
    background-color: var(--text-main);
    border-radius: 2px;
    transition: all var(--dur-fast) ease;
}

@media (min-width: 768px) {
    .burger-line {
        width: 24px;
    }
}

/* Burger Open State */
#burger-btn.open .burger-line:nth-child(1) {
    transform: translateY(3.5px) rotate(45deg);
}

#burger-btn.open .burger-line:nth-child(2) {
    transform: translateY(-3.5px) rotate(-45deg);
}

@media (min-width: 768px) {
    #burger-btn.open .burger-line:nth-child(1) {
        transform: translateY(3.5px) rotate(45deg);
    }

    #burger-btn.open .burger-line:nth-child(2) {
        transform: translateY(-3.5px) rotate(-45deg);
    }
}

/* Menu Overlay */
#menu-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: var(--glass-fill-2);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    z-index: 999;
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--dur-base) ease-out;
    box-sizing: border-box;
    padding-top: 88px;
}

@media (min-width: 768px) {
    #menu-overlay {
        padding-top: 104px;
    }
}

#menu-overlay.active {
    opacity: 1;
    pointer-events: auto;
}

.menu-nav {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: 1.5rem;
    width: 90%;
    max-width: 400px;
}

.menu-link {
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-main);
    text-decoration: none;
    opacity: 0;
    transform: translateY(20px);
    transition: all var(--dur-fast) ease;
    background: var(--glass-sheen), var(--glass-fill);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    border-radius: 60px;
    padding: 1rem 2rem;
    box-shadow:
        0 8px 24px var(--shadow-ambient),
        0 1px 0 var(--shadow-inset-top) inset,
        0 -1px 0 var(--shadow-inset-bottom) inset;
}

#menu-overlay.active .menu-link {
    opacity: 1;
    transform: translateY(0);
}

/* Stagger link animations */
#menu-overlay.active .menu-nav>*:nth-child(1) .menu-link {
    transition-delay: 0.1s;
}

#menu-overlay.active .menu-nav>*:nth-child(2) {
    transition-delay: 0.15s;
}

#menu-overlay.active .menu-nav>*:nth-child(3) {
    transition-delay: var(--dur-tap);
}

#menu-overlay.active .menu-nav>*:nth-child(4) {
    transition-delay: 0.25s;
}

.menu-link:hover,
.menu-link.tap-active {
    transform: scale(1.05) !important;
    border-color: var(--color-primary);
    box-shadow: 0 15px 35px var(--accent-glow);
}

/* Sub-menu hover effect for Progetti */
.menu-item-group {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    position: relative;
    background: var(--glass-sheen), var(--glass-fill);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    border-radius: 40px;
    padding: 0.5rem;
    box-shadow:
        0 8px 24px var(--shadow-ambient),
        0 1px 0 var(--shadow-inset-top) inset,
        0 -1px 0 var(--shadow-inset-bottom) inset;
    transition: all var(--dur-fast) ease;
}

.menu-item-group:hover,
.menu-item-group.tap-active {
    transform: scale(1.05);
    border-color: var(--color-primary);
    box-shadow: 0 15px 35px var(--accent-glow);
}

.menu-item-group .menu-link {
    background: transparent;
    border: none;
    box-shadow: none;
    padding: 1rem;
    margin: 0;
}

.menu-item-group .menu-link:hover {
    box-shadow: none;
    border-color: transparent;
    transform: none !important;
}

.menu-sub-link-divider {
    height: 1px;
    background: var(--divider);
    margin: 0 1.5rem;
    display: block;
}

.menu-sub-link {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-muted);
    text-decoration: none;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 1rem;
    transition: all var(--dur-fast) var(--ease-drop);
    border-radius: 30px;
}

.menu-sub-link:hover,
.menu-sub-link.tap-active {
    background: var(--sheen-color);
}

.menu-sub-link .arrow {
    transition: transform var(--dur-fast) ease;
    display: inline-block;
}

.menu-sub-link:hover .arrow {
    transform: translateX(5px);
}

@media (min-width: 768px) {
    .menu-link {
        font-size: 2.5rem;
        padding: 1.25rem 3rem;
    }

    .menu-sub-link {
        font-size: 1.3rem;
        padding: 1.25rem;
    }

    .menu-nav {
        max-width: 600px;
        gap: 2rem;
    }
}

/* Transition Overlay */
#transition-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: var(--bg-primary);
    z-index: 9999;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.5s ease-in-out;
}

#transition-overlay.active {
    opacity: 1;
    pointer-events: auto;
    transition: none;
    /* Show instantly */
}

/* --- Custom Form Controls (Liquid Glass) --- */
.custom-combobox {
    position: relative;
    width: 100%;
    cursor: pointer;
}

.custom-input {
    width: 100%;
    padding: 0.8rem;
    padding-right: 2.5rem;
    border: 1px solid var(--border-strong);
    border-radius: 8px;
    background: var(--sheen-color);
    color: var(--text-main);
    font-family: inherit;
    font-size: 1rem;
    outline: none;
    transition: all var(--dur-fast) ease;
    cursor: pointer;
}

.custom-input:focus {
    border-color: var(--color-primary);
    background: var(--bg-raised);
}

.custom-input.editable {
    cursor: text;
}

.custom-icon {
    position: absolute;
    right: 0.8rem;
    top: 50%;
    transform: translateY(-50%);
    pointer-events: auto; /* changed from none */
    cursor: pointer;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10;
}

.custom-dropdown {
    position: absolute;
    top: calc(100% + 0.5rem);
    left: 0;
    width: 100%;
    background: var(--glass-fill-2);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    box-shadow: 0 8px 32px var(--shadow-ambient);
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all var(--dur-fast) var(--ease-drop);
    overflow: hidden;
}

.custom-calendar {
    position: absolute;
    top: calc(100% + 0.5rem);
    left: 0;
    width: auto;
    min-width: 280px;
    max-width: 320px;
    background: var(--glass-fill-2);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    box-shadow: 0 8px 32px var(--shadow-ambient);
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all var(--dur-fast) var(--ease-drop);
    overflow: hidden;
}

.custom-dropdown.active,
.custom-calendar.active {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.custom-option {
    padding: 0.8rem 1.2rem;
    cursor: pointer;
    transition: background var(--dur-tap) ease;
    border-bottom: 1px solid var(--divider);
}

.custom-option:last-child {
    border-bottom: none;
}

.custom-option:hover {
    background: var(--sheen-color);
}

/* Custom Calendar Specifics */
.custom-calendar {
    padding: 1rem;
}

.calendar-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.calendar-header button {
    background: var(--sheen-color);
    border: 1px solid var(--border);
    border-radius: 8px;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--dur-tap) ease;
    color: var(--text-main);
}

.calendar-header button:hover {
    background: var(--bg-raised);
}

.calendar-weekdays {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    text-align: center;
    font-weight: bold;
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-bottom: 0.5rem;
}

.calendar-days {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 4px;
}

.calendar-day {
    aspect-ratio: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    border-radius: 6px;
    font-size: 0.95rem;
    transition: all var(--dur-tap) ease;
}

.calendar-day:hover {
    background: var(--sheen-color);
}

.calendar-day.empty {
    cursor: default;
}

.calendar-day.empty:hover {
    background: transparent;
}

.calendar-day.selected {
    background: var(--color-primary);
    color: var(--fg-on-accent);
    font-weight: bold;
    box-shadow: 0 4px 12px var(--accent-glow);
}
/* ============================================================
   CAMPI E CTA — erano scritti in style="…" dentro l'HTML, quindi
   non potevano seguire il tema ne' avere uno stato di focus.
   Qui esistono una volta sola.
   ============================================================ */
.form-input {
    width: 100%;
    padding: 0.8rem;
    border: 1px solid var(--border-strong);
    border-radius: 8px;
    background: var(--sheen-color);
    color: var(--text-main);
    font-family: inherit;
    font-size: 1rem;
    outline: none;
    transition: border-color var(--dur-fast) ease, background var(--dur-fast) ease;
}

.form-input::placeholder {
    color: var(--fg-subtle);
}

.form-input:focus {
    border-color: var(--color-primary);
    background: var(--bg-raised);
}

/* Bianco sull'oro faceva 2.10:1: il punto di conversione del sito era il suo
   elemento meno leggibile. Sull'oro si scrive inchiostro — 7.63:1, e l'oro
   non cambia col tema, quindi la coppia regge in entrambi. */
.btn-primary {
    padding: 1rem 2rem;
    background: var(--color-primary);
    color: var(--fg-on-accent);
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-family: inherit;
    font-weight: bold;
    font-size: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: transform var(--dur-fast) var(--ease-drop), box-shadow var(--dur-fast) ease;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px var(--accent-glow);
}

/* ============================================================
   INTERRUTTORE DEL TEMA
   Due stati visibili, tre stati reali: senza scelta esplicita comanda
   il sistema operativo, e l'interruttore mostra semplicemente dove si
   e' finiti. Due bottoni con aria-pressed, non uno slider: uno slider
   non dice quale stato e' attivo a chi usa uno screen reader.

   Porta la sua ricetta di vetro, come #burger-btn: cosi' regge anche
   quando la barra e' ancora il cerchio collassato e dietro non c'e'
   nessun pannello.
   ============================================================ */
.theme-toggle {
    display: inline-flex;
    align-items: center;
    gap: 2px;
    padding: 3px;
    border-radius: 60px;
    background-color: var(--glass-fill);
    background-image: var(--glass-sheen);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    box-shadow: var(--glass-shadow-sm);
    transition: border-color var(--dur-fast) ease;
    flex-shrink: 0;
    pointer-events: auto;
}

.theme-toggle:hover {
    border-color: var(--color-primary);
}

/* ---- L'interruttore e' legato alla barra ----------------------------
   #unified-nav e' pointer-events:none in entrambi i suoi stati e sono i
   figli a riabilitare i click: senza queste due regole l'interruttore
   resterebbe cliccabile a opacita' zero, sopra l'hero, dove non si vede.
   Entra quando la barra e' davvero una barra (.expanded), non a meta'
   morph quando e' ancora il cerchio del burger, e se ne va con lei. */
#unified-nav .theme-toggle {
    opacity: 0;
    transform: scale(0.8);
    pointer-events: none;
    transition: opacity var(--dur-morph) var(--ease-drop),
                transform var(--dur-morph) var(--ease-drop),
                border-color var(--dur-fast) var(--ease-out);
}

#unified-nav.expanded .theme-toggle {
    opacity: 1;
    transform: scale(1);
    pointer-events: auto;
}

.theme-toggle__opt {
    display: grid;
    place-items: center;
    width: 30px;
    height: 30px;
    padding: 0;
    border: none;
    background: transparent;
    border-radius: 50%;
    color: var(--fg-subtle);
    cursor: pointer;
    transition: background var(--dur-fast) ease, color var(--dur-fast) ease;
}

.theme-toggle__opt:hover {
    color: var(--text-main);
}

/* Lo stato attivo e' oro pieno con l'icona in inchiostro: 7.63:1 in
   entrambi i temi, la stessa regola del CTA. */
.theme-toggle__opt[aria-pressed="true"] {
    background: var(--color-primary);
    color: var(--fg-on-accent);
}

.theme-toggle__opt svg {
    display: block;
}

/* L'anello prende il verso opposto al fondo: inchiostro sulla carta,
   oro al buio. */
.theme-toggle__opt:focus-visible {
    outline: 2px solid var(--focus-ring);
    outline-offset: 2px;
}

#burger-menu-container {
    gap: 0.5rem;
}

@media (min-width: 768px) {
    .theme-toggle__opt {
        width: 34px;
        height: 34px;
    }

    #burger-menu-container {
        gap: 0.75rem;
    }
}

/* La riga in cima a projects.html: il tasto Home a sinistra, il tema a
   destra. Questa pagina non ha la barra, quindi l'interruttore ha bisogno
   di un posto suo. */
.projects-page-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

/* ============================================================
   PAGINA SINGOLO PROGETTO
   Le cinque pagine sotto projects/ erano <body></body> vuoti: un link
   cliccato dalla home portava a una pagina bianca, il punto meno
   "funzionante" del sito. Qui c'e' la stessa grammatica visiva delle
   project card — vetro, grana, pillola — applicata a una sola foto
   grande invece di tante piccole.
   ============================================================ */
.project-detail-container {
    margin-top: 2rem;
}

.project-detail {
    max-width: var(--w-card);
    margin: 0 auto;
}

.project-detail-header {
    text-align: center;
    margin-bottom: 2rem;
}

.project-detail-header h1 {
    font-family: var(--font-script);
    font-weight: 400;
    /* Fluida invece che a due sole taglie: un nome lungo come "Carolina" in
       corsivo connesso puo' superare da solo la larghezza di un telefono
       stretto, e overflow-x:hidden sul body lo taglierebbe invece di
       andare a capo. clamp() lo tiene sempre dentro, su ogni schermo. */
    font-size: clamp(2rem, 6vw + 1.2rem, var(--fs-1100));
    color: var(--text-main);
    margin-bottom: 0.5rem;
    line-height: 1.15;
}

.project-detail-meta {
    color: var(--text-muted);
    font-size: var(--fs-500);
    text-transform: uppercase;
    letter-spacing: var(--tr-micro);
}

.project-detail-hero {
    position: relative;
    width: 100%;
    aspect-ratio: 3 / 2;
    border-radius: var(--r-md);
    overflow: hidden;
    background: var(--bg-alt);
    border: 1px solid var(--border);
    box-shadow:
        0 8px 24px var(--shadow-ambient),
        0 1px 0 var(--shadow-inset-top) inset,
        0 -1px 0 var(--shadow-inset-bottom) inset;
    margin-bottom: 2rem;
}

.project-detail-hero::before {
    content: '';
    position: absolute;
    inset: 0;
    pointer-events: none;
    background-image: var(--grain-card);
    opacity: var(--grain-opacity);
    mix-blend-mode: var(--grain-blend);
    z-index: 1;
}

.project-detail-hero::after {
    content: '';
    position: absolute;
    inset: 0;
    box-shadow: inset 0 4px 16px rgba(0, 0, 0, 0.2);
    pointer-events: none;
    z-index: 2;
}

.project-detail-hero img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.project-detail-desc {
    font-size: var(--fs-500);
    line-height: var(--lh-base);
    color: var(--text-muted);
    text-align: center;
    max-width: var(--w-reading);
    margin: 0 auto;
}

.project-detail-cta {
    text-align: center;
    max-width: var(--w-reading);
    margin: 4rem auto 2rem auto;
    padding: 2.5rem 2rem;
    background: var(--glass-sheen), var(--glass-fill);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    border-radius: var(--r-md);
    box-shadow:
        0 8px 24px var(--shadow-ambient),
        0 1px 0 var(--shadow-inset-top) inset,
        0 -1px 0 var(--shadow-inset-bottom) inset;
}

.project-detail-cta h2 {
    font-size: var(--fs-800);
    margin-bottom: 0.75rem;
}

.project-detail-cta p {
    color: var(--text-muted);
    margin-bottom: 1.5rem;
}

.project-detail-cta .btn-primary {
    justify-content: center;
    text-decoration: none;
    display: inline-flex;
    margin: 0 auto;
}

@media (min-width: 768px) {
    .project-detail-hero {
        aspect-ratio: 16 / 9;
    }
}

/* ============================================================
   SCAGLIONAMENTO DELL'INGRESSO
   Gli elementi che entrano nello stesso momento entrano in fila
   indiana, non tutti insieme: un blocco che compare tutto in una
   volta legge come un salto, non come un movimento. L'indice lo
   assegna l'observer, che sa chi sta accanto a chi.
   ============================================================ */
.reveal-item {
    transition-delay: calc(var(--reveal-i, 0) * 70ms);
}

/* .projects-grid .project-card ridichiara la shorthand `transition` e
   azzererebbe il ritardo: glielo si rimette alla stessa specificita'. */
.projects-grid .project-card.reveal-item {
    transition-delay: calc(var(--reveal-i, 0) * 70ms);
}

/* Il ritardo serve a entrare in fila, non a rispondere al dito: una card
   che si solleva 280ms dopo il passaggio del mouse sembra rotta. */
.reveal-item:hover,
.reveal-item.tap-active,
.projects-grid .project-card.reveal-item:hover,
.projects-grid .project-card.reveal-item.tap-active {
    transition-delay: 0s;
}

/* ============================================================
   LE CARD IN GRIGLIA — projects.html
   Nella pila sticky della home il sollevamento lo pilota il JS.
   Qui no: erano l'unica superficie cliccabile del sito che sotto
   il dito non faceva niente.
   ============================================================ */
.projects-grid .project-card {
    transition: transform var(--dur-base) var(--ease-drop),
                box-shadow var(--dur-base) var(--ease-out),
                border-color var(--dur-fast) var(--ease-out);
}

.projects-grid .project-card:hover,
.projects-grid .project-card.tap-active {
    transform: var(--lift-card) rotate(var(--tilt-hover));
    box-shadow: var(--glass-shadow-lift);
    border-color: var(--color-primary);
}

/* Il dutch angle prende il verso opposto a card alterne: e' il taglio
   delle foto di festa, non un effetto uniforme. */
.projects-grid .project-card:nth-child(even):hover,
.projects-grid .project-card:nth-child(even).tap-active {
    transform: var(--lift-card) rotate(calc(var(--tilt-hover) * -1));
}

.projects-grid .project-card:active {
    transform: var(--press-card);
}

/* ============================================================
   CI SI FERMA DAVANTI A UN NO
   I token del moto si azzerano da soli in tokens.css. Qui restano
   i pochi valori fuori scala, le attese, e l'unica animazione
   autonoma del sito: un ciclo infinito e' esattamente cio' da cui
   questa preferenza protegge.
   ============================================================ */
@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }

    *,
    *::before,
    *::after {
        transition-delay: 0s !important;
        animation-duration: 1ms !important;
        animation-iteration-count: 1 !important;
    }

    .film-roll {
        animation: none;
        opacity: 1;
        height: 26px;
    }

    #anim-container,
    #transition-overlay {
        transition-duration: 1ms;
    }

    .reveal-item {
        transition-delay: 0s;
    }
}