:root {
    --text: #1d1d1f;
    --text-soft: #6e6e73;
    --accent: #0071e3;
    --accent-dark: #0051a3;
    --glass-bg: rgba(255, 255, 255, 0.55);
    --glass-border: rgba(255, 255, 255, 0.65);
    --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
    --radius: 24px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; scroll-padding-top: 80px; }

body {
    font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Helvetica Neue", Helvetica, Arial, sans-serif;
    color: var(--text);
    background: #f5f5f7;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

/* ---- Sfondo: blob sfumati dietro al vetro ---- */
.bg-blobs {
    position: fixed;
    inset: 0;
    z-index: -1;
    overflow: hidden;
}
.blob {
    position: absolute;
    border-radius: 50%;
    filter: blur(90px);
    opacity: 0.55;
    animation: float 18s ease-in-out infinite alternate;
}
.blob-1 {
    width: 55vw; height: 55vw;
    top: -15vw; left: -10vw;
    background: radial-gradient(circle, #a8c7ff, #c7b4ff);
}
.blob-2 {
    width: 45vw; height: 45vw;
    top: 30vh; right: -12vw;
    background: radial-gradient(circle, #ffd6e8, #ffb4c7);
    animation-delay: -6s;
}
.blob-3 {
    width: 50vw; height: 50vw;
    bottom: -20vh; left: 20vw;
    background: radial-gradient(circle, #b4f0ff, #a8d8ff);
    animation-delay: -12s;
}
@keyframes float {
    from { transform: translate(0, 0) scale(1); }
    to   { transform: translate(4vw, 5vh) scale(1.12); }
}

/* ---- Navbar in vetro ---- */
.glass-nav {
    position: fixed;
    top: 16px; left: 50%;
    transform: translateX(-50%);
    width: min(960px, calc(100% - 32px));
    z-index: 100;
    background: var(--glass-bg);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border: 1px solid var(--glass-border);
    border-radius: 999px;
    box-shadow: var(--glass-shadow);
}
.nav-inner {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    align-items: center;
    padding: 12px 28px;
}
.brand {
    display: flex;
    align-items: center;
    justify-self: start;
    text-decoration: none;
}
.brand-mark {
    height: 26px;
    width: auto;
    display: block;
}
.nav-links {
    display: flex;
    gap: 24px;
    justify-self: center;
}
.nav-links a {
    color: var(--text-soft);
    text-decoration: none;
    font-size: 0.92rem;
    transition: color 0.2s;
}
.nav-links a:hover { color: var(--text); }

.nav-toggle { display: none; }
.nav-burger {
    display: none;
    justify-self: end;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 28px;
    height: 28px;
    cursor: pointer;
}
.nav-burger span {
    display: block;
    height: 2px;
    border-radius: 2px;
    background: var(--text);
    transition: transform 0.25s, opacity 0.25s;
}

/* ---- Hero ---- */
.hero {
    min-height: 92vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 140px 24px 60px;
}
.hero-logo {
    width: clamp(250px, 32vw, 340px);
    height: auto;
    margin-bottom: 80px;
}
.hero h1 {
    font-size: clamp(3rem, 9vw, 6rem);
    font-weight: 700;
    letter-spacing: -0.035em;
    line-height: 1.02;
    background: linear-gradient(120deg, #1d1d1f 30%, #0071e3 70%, #8a4fff);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    color: transparent;
}
.tagline {
    margin-top: 22px;
    font-size: clamp(1.15rem, 2.4vw, 1.5rem);
    color: var(--text-soft);
    max-width: 640px;
    line-height: 1.5;
    font-weight: 400;
}
.hero-actions {
    margin-top: 40px;
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    justify-content: center;
}

/* ---- Bottoni ---- */
.btn {
    display: inline-block;
    padding: 14px 32px;
    border-radius: 999px;
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    transition: transform 0.2s, box-shadow 0.2s, background 0.2s;
}
.btn:hover { transform: translateY(-2px); }
.btn-primary {
    background: var(--accent);
    color: #fff;
    box-shadow: 0 6px 20px rgba(0, 113, 227, 0.35);
}
.btn-primary:hover { background: var(--accent-dark); }
.btn-glass {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    color: var(--text);
    box-shadow: var(--glass-shadow);
}
.btn-lg { padding: 18px 44px; font-size: 1.1rem; }

/* ---- Sezioni ---- */
.section {
    max-width: 1080px;
    margin: 0 auto;
    padding: 90px 24px;
    text-align: center;
}
.section h2 {
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 700;
    letter-spacing: -0.025em;
}
.section-sub {
    margin-top: 14px;
    font-size: 1.15rem;
    color: var(--text-soft);
    max-width: 560px;
    margin-left: auto;
    margin-right: auto;
}

/* ---- Card in vetro ---- */
.cards {
    margin-top: 56px;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 24px;
}
.glass-card {
    background: var(--glass-bg);
    backdrop-filter: blur(24px) saturate(180%);
    -webkit-backdrop-filter: blur(24px) saturate(180%);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
    box-shadow: var(--glass-shadow);
    padding: 40px 28px;
    text-align: center;
    transition: transform 0.25s, box-shadow 0.25s;
}
.glass-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 16px 48px rgba(0, 0, 0, 0.12);
}
.card-icon { font-size: 2.4rem; margin-bottom: 18px; }
.glass-card h3 {
    font-size: 1.25rem;
    font-weight: 600;
    letter-spacing: -0.01em;
    margin-bottom: 10px;
}
.glass-card p { color: var(--text-soft); line-height: 1.6; font-size: 0.98rem; }

/* ---- Pannello "chi sono" ---- */
.glass-panel {
    background: var(--glass-bg);
    backdrop-filter: blur(24px) saturate(180%);
    -webkit-backdrop-filter: blur(24px) saturate(180%);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
    box-shadow: var(--glass-shadow);
    padding: 56px 48px;
    text-align: left;
    max-width: 760px;
    margin: 0 auto;
}
.glass-panel h2, .glass-panel h3 {
    letter-spacing: -0.02em;
    margin-bottom: 16px;
}
.glass-panel p {
    color: var(--text-soft);
    line-height: 1.7;
    font-size: 1.05rem;
    margin-bottom: 14px;
}
.glass-panel p:last-child { margin-bottom: 0; }
.glass-panel a {
    color: var(--accent);
    text-decoration: none;
}
.glass-panel a:hover { text-decoration: underline; }

/* ---- Contatti e footer ---- */
.section-contact .btn { margin-top: 36px; }

.footer {
    text-align: center;
    padding: 48px 24px 56px;
    color: var(--text-soft);
    font-size: 0.92rem;
}
.footer-fine { margin-top: 6px; font-size: 0.82rem; opacity: 0.7; }

/* ---- Mobile ---- */
@media (max-width: 700px) {
    .nav-inner {
        grid-template-columns: auto 1fr;
        padding: 10px 20px;
    }
    .brand { grid-row: 1; grid-column: 1; }
    .nav-burger { display: flex; grid-row: 1; grid-column: 2; }
    .nav-links { display: none; }

    .nav-toggle:checked ~ .nav-inner .nav-links {
        display: flex;
        flex-direction: column;
        grid-row: 2;
        grid-column: 1 / -1;
        gap: 0;
        padding: 10px 0 6px;
        border-top: 1px solid rgba(0, 0, 0, 0.08);
        margin-top: 10px;
    }
    .nav-toggle:checked ~ .nav-inner .nav-links a {
        padding: 12px 4px;
        font-size: 1rem;
        text-align: center;
    }
    .glass-nav:has(.nav-toggle:checked) { border-radius: 24px; }
    .nav-toggle:checked ~ .nav-inner .nav-burger span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
    .nav-toggle:checked ~ .nav-inner .nav-burger span:nth-child(2) { opacity: 0; }
    .nav-toggle:checked ~ .nav-inner .nav-burger span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

    .glass-panel { padding: 36px 24px; }
}

@media (prefers-reduced-motion: reduce) {
    .blob { animation: none; }
    html { scroll-behavior: auto; }
}