/* --- Import Font --- */
@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@200;300;400;500;600&display=swap'); /* Aggiunto 300 per flessibilità */

/* --- CSS Reset & Basic Setup --- */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Palette Colori */
    --bg-primary: #1f1f1f;
    --bg-secondary: #2e2e2e;
    --bg-tertiary: #3a3a3a;
    --text-primary: #e8eaed;
    --text-secondary: #bdc1c6;
    --text-on-gradient: #121212; /* Testo nero per bottoni con gradiente */

    /* Accent Gradient */
    --gradient-start: #ffd8ff;
    --gradient-end: #90edff;
    --accent-gradient: linear-gradient(90deg, var(--gradient-start) 0%, var(--gradient-end) 100%);
    --accent-solid-for-text: var(--gradient-end);
    --accent-solid-hover: #b3f5ff;

    --border-color: #5f6368;
    --divider-color: #3c4043;

    /* Tipografia con OUTFIT */
    --font-family-main: 'Outfit', sans-serif;
    --font-weight-body: 200;        /* ExtraLight */
    --font-weight-heading: 600;     /* Bold */
    --font-weight-medium: 500;      /* Medium */
    --font-weight-regular: 400;     /* Regular */
    --font-weight-light: 300;       /* Light */

    /* Type Scale */
    --font-size-display: 3rem;
    --font-size-h1: 2.2rem;
    --font-size-h2: 1.8rem;
    --font-size-h3: 1.4rem;
    --font-size-body-large: 1.05rem;
    --font-size-body-medium: 1rem;
    --font-size-body-small: 0.875rem;
    --font-size-button: 0.9rem;
    --font-size-label: 0.875rem;

    /* Line Heights */
    --line-height-display: 1.2;
    --line-height-heading: 1.25;
    --line-height-body: 1.7;
    --line-height-tight: 1.1;

    /* Spaziatura */
    --spacing-base: 8px;
    --spacing-xs: calc(var(--spacing-base) * 0.5);  /* 4px */
    --spacing-sm: var(--spacing-base);             /* 8px */
    --spacing-md: calc(var(--spacing-base) * 2);   /* 16px */
    --spacing-lg: calc(var(--spacing-base) * 3);   /* 24px */
    --spacing-xl: calc(var(--spacing-base) * 4);   /* 32px */
    --spacing-xxl: calc(var(--spacing-base) * 5);  /* 40px - Ridotto per non esagerare */

    /* Bordi */
    --border-radius-small: 4px;
    --border-radius-medium: 8px;
    --border-radius-large: 12px; /* Leggermente ridotto per coerenza */
    --border-radius-pill: 50px;

    --container-width: 1100px;
    --header-height-desktop: 70px; /* Altezza header per desktop */
}

html {
    scroll-behavior: smooth; /* Già presente, ma importante per monopagina */
    font-size: 100%;
}

body {
    font-family: var(--font-family-main);
    font-weight: var(--font-weight-body);
    font-size: var(--font-size-body-medium);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: var(--line-height-body);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    overflow-x: hidden; /* Previene scroll orizzontale indesiderato */
}

body.no-scroll {
    overflow: hidden; /* Per bloccare scroll quando menu mobile è aperto */
}

/* --- Utility Classes --- */
.container {
    width: 90%;
    max-width: var(--container-width);
    margin-left: auto;
    margin-right: auto;
    padding-left: var(--spacing-md); /* Ridotto padding laterale container */
    padding-right: var(--spacing-md);
}
.text-center { text-align: center; }
.gradient-text {
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -moz-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    -moz-text-fill-color: transparent;
    text-fill-color: transparent; /* Potrebbe non funzionare su tutti i browser, ma webkit è il più comune per questo */
}

/* --- Links --- */
a {
    color: var(--accent-solid-for-text);
    text-decoration: none;
    font-weight: var(--font-weight-regular);
    transition: color 0.2s ease-in-out;
}
a:hover, a:focus {
    color: var(--gradient-start);
    text-decoration: none; /* Rimuoviamo la sottolineatura standard per i link, useremo altri indicatori */
}

/* --- Headings --- */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-family-main);
    font-weight: var(--font-weight-heading);
    line-height: var(--line-height-heading);
    margin-top: 0;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}
h1 { font-size: var(--font-size-h1); }
h2 { font-size: var(--font-size-h2); margin-top: var(--spacing-xxl); }
h3 { font-size: var(--font-size-h3); margin-top: var(--spacing-lg); font-weight: var(--font-weight-medium); } /* H3 leggermente meno bold */

/* --- Paragraphs & Body Text --- */
p {
    margin-bottom: var(--spacing-md);
    font-size: var(--font-size-body-large);
}
p:last-child { margin-bottom: 0; }
.intro-text {
    font-size: var(--font-size-body-large);
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* --- Header --- */
#siteHeader {
    background-color: var(--bg-secondary);
    padding: var(--spacing-sm) 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid var(--divider-color);
    min-height: var(--header-height-desktop); /* Usa var per desktop */
    display: flex;
    align-items: center;
}
#siteHeader.menu-active-on-header {
    /* Eventuali stili aggiuntivi per l'header quando il menu mobile è aperto */
}
#siteHeader .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
}
#siteHeader .logo a {
    font-weight: var(--font-weight-heading);
    font-size: 1.4rem;
    color: var(--text-primary);
    text-decoration: none;
    padding: var(--spacing-xs) 0;
}
#siteHeader .logo .logo-subtitle {
    font-weight: var(--font-weight-light);
    font-size: 1.1rem;
}
/* Stili per il logo nell'header */
#siteHeader .logo img#headerLogo {
    max-height: 40px; /* o l'altezza che preferisci, es. var(--header-height-desktop) - 20px */
    width: auto;      /* Mantiene le proporzioni */
    display: block;   /* Per evitare spazi extra sotto l'immagine */
}

/* Potrebbe essere necessario aggiustare il padding del link contenitore se serve */
#siteHeader .logo a {
    padding: 0; /* Rimuovi padding se il logo riempie lo spazio */
}
/* Navigazione Desktop */
#mainNav ul {
    list-style: none;
    display: flex;
    margin:0; padding:0;
}
#mainNav li {
    margin-left: var(--spacing-lg);
}
#mainNav a.nav-link {
    font-weight: var(--font-weight-regular);
    font-size: var(--font-size-label);
    color: var(--text-secondary);
    padding: var(--spacing-sm) var(--spacing-xs);
    text-transform: capitalize;
    border-bottom: 2px solid transparent;
    transition: color 0.2s ease, border-color 0.2s ease;
    position: relative; /* Per l'effetto hover */
}
#mainNav a.nav-link:hover,
#mainNav a.nav-link:focus,
#mainNav a.nav-link.active {
    color: var(--text-primary);
    border-bottom-color: var(--gradient-end);
}
#mainNav a.nav-link.active::after,
#mainNav a.nav-link:hover::after { /* Effetto sottolineatura gradiente per active/hover */
    content: '';
    position: absolute;
    left: 0;
    bottom: -2px; /* Allinea con il border-bottom */
    width: 100%;
    height: 2px;
    background: var(--accent-gradient);
}


/* --- Hamburger Menu --- */
.mobile-menu-trigger {
    display: none; /* Nascosto su desktop */
    background: none;
    border: none;
    padding: var(--spacing-sm);
    cursor: pointer;
    z-index: 1001; /* Sopra la nav se si sovrappone */
}
.hamburger-icon {
    display: block;
    width: 24px;
    height: 20px; /* Altezza totale dell'icona */
    position: relative;
}
.hamburger-line {
    display: block;
    width: 100%;
    height: 2px;
    background-color: var(--text-primary);
    border-radius: 1px;
    position: absolute;
    left: 0;
    transition: transform 0.3s ease, opacity 0.3s ease, background-color 0.3s ease;
}
.hamburger-line.line-1 { top: 0; }
.hamburger-line.line-2 { top: 50%; transform: translateY(-50%); }
.hamburger-line.line-3 { bottom: 0; }

/* Stile Hamburger Attivo (X) */
.mobile-menu-trigger.is-active .hamburger-line.line-1 {
    transform: translateY(9px) rotate(45deg); /* Sposta e ruota */
}
.mobile-menu-trigger.is-active .hamburger-line.line-2 {
    opacity: 0; /* Linea centrale scompare */
}
.mobile-menu-trigger.is-active .hamburger-line.line-3 {
    transform: translateY(-9px) rotate(-45deg); /* Sposta e ruota */
}

/* --- Main Content --- */
main {
    flex-grow: 1;
    padding-top: 0; /* Rimosso, gestito da section:first-child */
    padding-bottom: var(--spacing-xl);
}
section {
    padding-top: var(--spacing-xxl);
    padding-bottom: var(--spacing-xxl);
}
section:first-child, #hero { /* #hero è la prima section */
    padding-top: calc(var(--header-height-desktop) + var(--spacing-xl)); /* Spazio per header fisso */
}
.full-height-section { /* Esempio, da affinare */
    min-height: calc(100vh - var(--header-height-desktop));
    display: flex;
    align-items: center;
    justify-content: center;
}


/* --- Hero Section Specific --- */
#hero {
    background-color: var(--bg-primary);
    text-align: center;
}
.profile-image-hero { /* Sostituisce lo stile inline */
    max-width: 180px;
    border-radius: 50%;
    margin-bottom: var(--spacing-lg);
    border-width: 4px;
    border-image-slice: 1;
    border-image-source: var(--accent-gradient);
    border-style: solid;
}
#hero h1 {
    font-size: var(--font-size-display);
    line-height: var(--line-height-display);
    margin-bottom: var(--spacing-md);
}
.intro-text { margin-bottom: var(--spacing-lg); }

/* --- Timeline Section --- */
#storia { /* Nessuno stile specifico per la sezione se non il padding */ }
.timeline {
    position: relative;
    max-width: 800px;
    margin: var(--spacing-xl) auto;
    padding: var(--spacing-md) 0;
}
.timeline::before { /* Linea centrale della timeline */
    content: '';
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 3px;
    background: var(--divider-color);
    transform: translateX(-50%);
}
.timeline-item {
    position: relative;
    margin-bottom: var(--spacing-xl);
    width: 50%;
    padding: var(--spacing-sm) var(--spacing-lg);
}
.timeline-item:nth-child(odd) {
    left: 0;
    padding-right: calc(var(--spacing-lg) + 20px); /* Spazio per il "pallino" */
    text-align: right;
}
.timeline-item:nth-child(even) {
    left: 50%;
    padding-left: calc(var(--spacing-lg) + 20px); /* Spazio per il "pallino" */
    text-align: left;
}
.timeline-item::after { /* Pallino sulla linea centrale */
    content: '';
    position: absolute;
    top: 15px; /* Allinea con il testo o data */
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--accent-gradient);
    z-index: 1;
}
.timeline-item:nth-child(odd)::after {
    right: -8px; /* Metà larghezza pallino */
    transform: translateX(50%);
}
.timeline-item:nth-child(even)::after {
    left: -8px; /* Metà larghezza pallino */
    transform: translateX(-50%);
}
.timeline-date {
    font-weight: var(--font-weight-medium);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xs);
    font-size: var(--font-size-body-small);
}
.timeline-content {
    background-color: var(--bg-secondary);
    padding: var(--spacing-md);
    border-radius: var(--border-radius-medium);
}
.timeline-content h3 {
    margin-top: 0;
    margin-bottom: var(--spacing-sm);
    font-size: 1.2rem; /* Più piccolo per la timeline */
}
.timeline-content p {
    font-size: var(--font-size-body-medium);
    line-height: 1.6;
}

/* --- Progetti / CTA Grid Section --- */
#progetti { background-color: var(--bg-secondary); }
.cta-grid {
    display: grid; /* Cambiato a Grid per più controllo */
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
}
.cta-box {
    background-color: var(--bg-primary);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius-medium);
    display: flex;
    flex-direction: column;
    text-align: center;
    box-shadow: 0 2px 8px rgba(0,0,0,0.15);
}
.cta-logo {
    max-width: 200px; /* Ridotto logo */
    height: auto;
    margin: 0 auto var(--spacing-md) auto; /* Centra e aggiunge margine sotto */
}
.cta-box h3 {
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}
.cta-box p {
    font-size: var(--font-size-body-medium);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
    flex-grow: 1;
}
.cta-box .cta-button { /* Stile per i bottoni dentro .cta-box */
    margin-top: auto;
    width: fit-content;
    align-self: center; /* Centra il bottone */
}


/* --- Call to Action (CTA) Button --- */
.cta-button {
    display: inline-flex; /* Per allineare testo e icona */
    align-items: center;
    justify-content: center;
    background: var(--accent-gradient);
    color: var(--text-on-gradient); /* <<<< TESTO NERO SU GRADIENTE */
    padding: var(--spacing-sm) var(--spacing-lg); /* Padding leggermente aggiustato */
    border-radius: var(--border-radius-pill);
    font-family: var(--font-family-main);
    font-weight: var(--font-weight-medium); /* Era button-label, medium è 500 */
    font-size: var(--font-size-button);
    text-decoration: none;
    border: none;
    cursor: pointer;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    box-shadow: 0 2px 8px rgba(0,0,0,0.15);
}
.cta-button:hover, .cta-button:focus {
    color: var(--text-on-gradient); /* Mantiene testo nero */
    transform: translateY(-2px) scale(1.02);
    box-shadow: 0 4px 12px rgba(144, 237, 255, 0.3);
    text-decoration: none; /* Assicura no sottolineatura su hover */
}
.cta-icon { /* Icona dentro il bottone email */
    width: 1em; /* Relativa al font-size del bottone */
    height: 1em;
    margin-left: var(--spacing-sm);
}

/* --- Contatti Section --- */
.contact-intro {
    max-width: 600px;
    margin-left:auto;
    margin-right:auto;
    margin-bottom: var(--spacing-lg);
}
.linkedin-contact {
    margin-top: var(--spacing-xl);
    font-size: var(--font-size-body-medium);
}

/* --- Footer --- */
footer {
    background-color: var(--bg-secondary);
    color: var(--text-secondary);
    padding: var(--spacing-lg) 0; /* Ridotto padding */
    text-align: center;
    border-top: 1px solid var(--divider-color);
    margin-top: auto;
}
footer p {
    margin-bottom: var(--spacing-xs);
    font-size: var(--font-size-body-small);
    font-weight: var(--font-weight-light);
}
footer p:last-child { margin-bottom: 0; }
footer a {
    font-weight: var(--font-weight-regular);
    color: var(--text-secondary); /* Per i link nel footer */
}
footer a:hover {
    color: var(--gradient-start);
}

/* --- ANIMAZIONI ALLO SCROLL --- */
.animated-section {
    opacity: 0;
    transform: translateY(30px); /* Inizia leggermente spostato in basso */
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}
.animated-section.is-visible {
    opacity: 1;
    transform: translateY(0);
}
/* Ritardi per animazioni sequenziali (opzionale) */
.timeline-item.animated-section:nth-child(1) { transition-delay: 0.1s; }
.timeline-item.animated-section:nth-child(2) { transition-delay: 0.2s; }
.timeline-item.animated-section:nth-child(3) { transition-delay: 0.3s; }
.timeline-item.animated-section:nth-child(4) { transition-delay: 0.4s; }
.cta-box.animated-section:nth-child(1) { transition-delay: 0.1s; }
.cta-box.animated-section:nth-child(2) { transition-delay: 0.2s; }


/* --- RESPONSIVE DESIGN (MEDIA QUERIES) --- */
@media (max-width: 992px) {
    .container {
        padding-left: var(--spacing-md);
        padding-right: var(--spacing-md);
    }
    #hero h1 { font-size: 2.6rem; }
    h1 { font-size: 2rem; }
    h2 { font-size: 1.6rem; margin-top: var(--spacing-xl); }
    .timeline::before { left: 20px; transform: none; } /* Linea timeline a sinistra su mobile */
    .timeline-item,
    .timeline-item:nth-child(odd),
    .timeline-item:nth-child(even) {
        width: 100%;
        left: 0;
        padding-left: calc(20px + var(--spacing-md) + 16px); /* Spazio per linea, pallino e padding */
        padding-right: var(--spacing-sm);
        text-align: left;
    }
    .timeline-item::after,
    .timeline-item:nth-child(odd)::after,
    .timeline-item:nth-child(even)::after {
        left: 20px; /* Allinea pallino con la linea */
        transform: translateX(-50%);
    }
}

@media (max-width: 768px) {
    :root {
        --font-size-display: 2.2rem;
        --font-size-h1: 1.8rem;
        --font-size-h2: 1.5rem;
        --font-size-h3: 1.25rem;
        --font-size-body-large: 0.95rem;
        --line-height-body: 1.65;
        --spacing-xl: calc(var(--spacing-base) * 3);
        --spacing-xxl: calc(var(--spacing-base) * 4);
    }

    /* Header Mobile */
    #siteHeader {
        min-height: 60px; /* Altezza header mobile */
    }
    section:first-child, #hero {
        padding-top: calc(60px + var(--spacing-lg)); /* Spazio per header mobile */
    }

    /* Menu Hamburger Visibile, Nav Desktop Nascosta */
    .mobile-menu-trigger {
        display: block; /* Mostra hamburger */
    }
    #mainNav {
        display: none; /* Nascondi nav di default su mobile */
        position: fixed; /* O absolute rispetto a header */
        top: 0; /* Inizia dall'alto dell'header o della viewport */
        left: 0;
        width: 100%;
        height: 100vh; /* A tutto schermo */
        background-color: rgba(20, 20, 20, 0.98); /* Sfondo scuro semi-trasparente */
        z-index: 999; /* Sotto l'hamburger ma sopra il contenuto */
        padding-top: 80px; /* Spazio per l'header e il bottone X */
        flex-direction: column;
        align-items: center;
        justify-content: flex-start; /* Inizia dall'alto */
        transform: translateX(100%); /* Nascosto fuori schermo a destra */
        transition: transform 0.4s cubic-bezier(0.23, 1, 0.32, 1); /* Transizione fluida */
    }
    #mainNav.menu-open {
        display: flex; /* Mostra quando aperto */
        transform: translateX(0); /* Scorre dentro */
    }
    #mainNav ul {
        flex-direction: column;
        align-items: center;
        width: 100%;
    }
    #mainNav li {
        margin-left: 0;
        margin-bottom: var(--spacing-md); /* Spazio tra link menu mobile */
        width: 80%;
        text-align: center;
    }
    #mainNav a.nav-link {
        display: block;
        padding: var(--spacing-md);
        font-size: 1.3rem; /* Testo più grande per menu mobile */
        color: var(--text-primary);
        border-bottom: 1px solid var(--divider-color);
    }
    #mainNav a.nav-link.active,
    #mainNav a.nav-link:hover {
        border-bottom-color: var(--gradient-end); /* Solo bordo per mobile */
        background: var(--accent-gradient); /* Sfondo per il link attivo/hover */
        -webkit-background-clip: text;
        -moz-background-clip: text;
        background-clip: text;
        -webkit-text-fill-color: transparent;
        -moz-text-fill-color: transparent;
        color: transparent; /* Fallback */
    }
     #mainNav a.nav-link.active::after, /* Rimuovi effetto desktop */
    #mainNav a.nav-link:hover::after {
        display: none;
    }


    .cta-grid {
        grid-template-columns: 1fr; /* Una colonna per i box CTA */
    }
    section {
        padding-top: var(--spacing-xl);
        padding-bottom: var(--spacing-xl);
    }
}

@media (max-width: 480px) {
    :root {
        --font-size-display: 1.8rem;
        --font-size-h1: 1.6rem;
        --font-size-h2: 1.3rem;
        --font-size-body-large: 0.9rem;
        --spacing-base: 7px;
    }
    .container {
        padding-left: var(--spacing-sm);
        padding-right: var(--spacing-sm);
    }
    .cta-button {
        padding: var(--spacing-sm) var(--spacing-md); /* Padding ridotto per bottoni piccoli */
        font-size: 0.85rem;
    }
    .intro-text { font-size: var(--font-size-body-medium); }
    .timeline::before { left: 15px; }
    .timeline-item,
    .timeline-item:nth-child(odd),
    .timeline-item:nth-child(even) {
        padding-left: calc(15px + var(--spacing-md) + 12px);
    }
     .timeline-item::after,
    .timeline-item:nth-child(odd)::after,
    .timeline-item:nth-child(even)::after {
        left: 15px;
        width: 12px; height: 12px;
    }
}