/* ============================================================
   EGOMNIA STORE — Minimal Design System
   Swiss-inspired · Light · Generous whitespace · Editorial
   ============================================================ */

:root {
    --bg:          #fafaf8;
    --bg-alt:      #f3f2ee;
    --surface:     #ffffff;
    --border:      #e2dfd8;
    --border-hov:  #c9c4b8;

    --fg:          #1a1a18;
    --fg-body:     #4a4840;
    --fg-muted:    #8a877c;
    --fg-dim:      #b5b1a5;

    --accent:      #0d9488;
    --accent-hov:  #0f766e;
    --accent-soft: #f0fdfa;
    --accent-alt:  #b7610e;
    --accent-alt-soft: #fef7ee;

    --font-sans:   'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-serif:  'Newsreader', 'Times New Roman', Georgia, serif;

    --radius:      6px;
    --radius-card: 4px;

    --nav-h: 56px;
}

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

html { scroll-behavior:smooth; scroll-padding-top:var(--nav-h); }

body {
    font-family: var(--font-sans);
    font-weight: 350;
    font-size: 16px;
    line-height: 1.6;
    color: var(--fg-body);
    background: var(--bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

/* --- Typography --- */
h1, h2, h3, h4 { font-family: var(--font-serif); color: var(--fg); font-weight: 500; }
a { color: var(--fg); text-decoration: none; transition: color .15s; }
a:hover { color: var(--accent); }

.container { max-width: 1100px; margin: 0 auto; padding: 0 2rem; }

/* --- Buttons --- */
.btn {
    display: inline-flex; align-items: center; gap: 6px;
    font-family: var(--font-sans); font-weight: 480; font-size: .875rem;
    letter-spacing: .01em;
    padding: .7rem 1.5rem;
    border-radius: var(--radius);
    background: var(--fg);
    color: var(--bg);
    border: 1.5px solid var(--fg);
    cursor: pointer;
    transition: all .18s;
}
.btn:hover { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn--outline { background: transparent; color: var(--fg); border-color: var(--border-hov); }
.btn--outline:hover { background: transparent; color: var(--accent); border-color: var(--accent); }

/* --- Section Header --- */
.section-header { margin-bottom: 4rem; }
.section-header__tag {
    display: block;
    font-family: var(--font-sans);
    font-size: .7rem; font-weight: 580;
    letter-spacing: .18em; text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 1rem;
}
.section-header__title {
    font-family: var(--font-serif);
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 500;
    letter-spacing: -.02em;
    color: var(--fg);
    margin-bottom: .75rem;
}
.section-header__desc {
    font-size: 1.05rem;
    color: var(--fg-muted);
    max-width: 540px;
    line-height: 1.65;
}

/* ============================================================
   NAV
   ============================================================ */
.nav {
    position: fixed; top:0; left:0; right:0; z-index: 100;
    height: var(--nav-h);
    background: rgba(250,250,248,.88);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
}
.nav__inner {
    max-width: 1100px; margin:0 auto; padding:0 2rem;
    height:100%; display:flex; align-items:center; justify-content:space-between;
}
.nav__logo { display: inline-flex; align-items: center; gap: 8px; }
.nav__logo img { height: 28px; width:auto; display:block; }
.nav__logo .egomnia-logo { height: 14.52px; }
.nav__links { display:flex; list-style:none; gap:2.5rem; }
.nav__links .hf-link { display:inline-flex; align-items:center; }
.nav__links .hf-logo { display:block; }
.nav__links .hf-logo--hover { display:none; }
.nav__links .hf-link:hover .hf-logo { display:none; }
.nav__links .hf-link:hover .hf-logo--hover { display:block; }
.nav__links .lang-switch { display:inline-flex; align-items:center; gap:.45rem; font-size:.75rem; color: var(--fg-dim); }
.nav__links .lang-switch a { font-size:.75rem; font-weight:500; color: var(--fg-dim); text-transform:uppercase; letter-spacing:.06em; }
.nav__links .lang-switch a.is-active { color: var(--fg); }
.nav__links .lang-switch span { color: var(--fg-dim); }

.mobile-menu .lang-switch { margin-top: 1.5rem; font-size: 1.09rem; }
.mobile-menu .lang-switch a { text-transform: uppercase; letter-spacing:.06em; font-weight:500; font-size: 1.09rem; }
.mobile-menu .lang-switch span { font-size: 1.09rem; }
.mobile-menu .hf-link { display:inline-flex; align-items:center; }
.mobile-menu .hf-logo { display:block; height:34px; width:auto; }
.mobile-menu .hf-logo--hover { display:none; }
.nav__links a {
    font-size: .825rem; font-weight: 450; color: var(--fg-body); letter-spacing: .01em;
}
.nav__links a:hover { color: var(--accent); }

.nav__hamburger { display:none; flex-direction:column; gap:4px; background:none; border:none; cursor:pointer; padding:4px; }
.nav__hamburger span { display:block; width:20px; height:1.5px; background:var(--fg); border-radius:1px; transition: all .2s; }
.nav__hamburger.active span:nth-child(1) { transform:rotate(45deg) translate(4px,4px); }
.nav__hamburger.active span:nth-child(2) { transform:rotate(-45deg) translate(3px,-3px); }

.mobile-menu {
    position:fixed; inset:0; z-index:99;
    background: rgba(250,250,248,.97);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    display:flex; align-items:center; justify-content:center;
    opacity:0; pointer-events:none; transition: opacity .25s;
}
.mobile-menu.active { opacity:1; pointer-events:auto; }
.mobile-menu ul { list-style:none; text-align:center; }
.mobile-menu li + li { margin-top: 2rem; }
.mobile-menu a { font-family: var(--font-serif); font-size: 2rem; color: var(--fg); }

/* ============================================================
   HERO
   ============================================================ */
.hero {
    min-height: 100vh;
    display: flex; flex-direction: column; align-items: center;
    justify-content: center;
    text-align: center;
    padding: calc(var(--nav-h) + 4rem) 2rem 6rem;
}
.hero__overline {
    font-family: var(--font-sans);
    font-size: .725rem; font-weight: 520;
    letter-spacing: .22em; text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 1.5rem;
}
.hero__title {
    font-family: var(--font-serif);
    font-size: clamp(2.6rem, 6vw, 4.8rem);
    font-weight: 500;
    letter-spacing: -.025em;
    line-height: 1.08;
    color: var(--fg);
    max-width: 720px;
    margin-bottom: 1.5rem;
}
.hero__body {
    font-size: 1.1rem;
    color: var(--fg-muted);
    max-width: 520px;
    line-height: 1.7;
    margin-bottom: 2.5rem;
}
.hero__actions { display:flex; gap:.75rem; flex-wrap:wrap; justify-content:center; }

/* ============================================================
   DATASETS
   ============================================================ */
.datasets { padding: 7rem 0; }

/* Card */
.card {
    display: grid;
    grid-template-columns: 1fr 1.3fr;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-card);
    overflow: hidden;
}
.card + .card { margin-top: 1.5rem; }

.card__media {
    display: flex; align-items: center; justify-content: center;
    padding: 3rem 2rem;
    background: #faf9f6;
    border-right: 1px solid var(--border);
}
.card__media--emma { background: #f6f8f9; }
.card__media--userprompt { background: #f5f4f0; }
.card__media img { max-width:100%; max-height:200px; object-fit:contain; }

.card__body { padding: 2.5rem; display:flex; flex-direction:column; }

.card__badge {
    display: inline-block; width:fit-content;
    font-family: var(--font-sans);
    font-size: .675rem; font-weight: 560; letter-spacing: .1em;
    text-transform: uppercase;
    color: var(--accent);
    background: var(--accent-soft);
    padding: .25rem .65rem;
    border-radius: 3px;
    margin-bottom: 1rem;
}
.card__badge--alt { color: var(--accent-alt); background: var(--accent-alt-soft); }

.card__title {
    font-size: 1.75rem;
    font-weight: 500;
    margin-bottom: .65rem;
    color: var(--fg);
}
.card__desc {
    font-size: .9rem;
    color: var(--fg-muted);
    line-height: 1.7;
    margin-bottom: 1.75rem;
}
.card__desc strong { color: var(--fg); font-weight: 520; }

.card__sample {
    display: inline-flex; align-items: center; gap: 4px;
    font-family: var(--font-sans);
    font-size: .75rem; font-weight: 520;
    color: var(--accent);
    margin-bottom: 1.25rem;
    transition: gap .2s;
}
.card__sample:hover {
    color: var(--accent-hov);
    gap: 8px;
}

.card__specs {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    margin-bottom: 2rem;
}
.card__specs dt {
    font-size: .65rem; font-weight: 560; letter-spacing: .08em;
    text-transform: uppercase; color: var(--fg-dim);
    margin-bottom: .15rem;
}
.card__specs dd { font-size: .85rem; color: var(--fg-body); }

.card__footer {
    margin-top: auto;
    display: flex; align-items: center; justify-content: space-between;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border);
}
.card__price {
    display: flex; align-items: baseline; gap: .35rem;
    font-family: var(--font-serif);
    font-size: 1.35rem; font-weight: 500;
    color: var(--fg);
}
.card__price--note {
    font-family: var(--font-sans);
    font-size: .7rem;
    font-weight: 520;
    letter-spacing: .04em;
    text-transform: uppercase;
    color: var(--fg-dim);
}
.card__price-icon {
    width: 15.4px;
    height: 15.4px;
    display: inline-block;
    margin-right: .35rem;
    opacity: .7;
}
.card__price small { font-family: var(--font-sans); font-size: .65rem; font-weight: 450; color: var(--fg-muted); letter-spacing: .03em; }
.card__cta {
    display: inline-flex; align-items: center; justify-content: center;
    padding: .35rem .9rem;
    border-radius: var(--radius);
    background: #faf9f6;
    transition: background .18s;
    position: relative;
}
.card__cta:hover { background: #eeebe4; }
.card__cta--disabled { opacity: .55; cursor: progress; pointer-events: none; }
.card__cta[data-hover]::after {
    content: attr(data-hover);
    position: absolute;
    right: 110%;
    top: 50%;
    transform: translateY(-50%) translateX(-4px);
    background: var(--fg);
    color: var(--bg);
    font-family: var(--font-sans);
    font-size: .65rem;
    font-weight: 520;
    letter-spacing: .04em;
    text-transform: uppercase;
    padding: .3rem .5rem;
    border-radius: 4px;
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: opacity .15s ease, transform .15s ease;
}
.card__cta[data-hover]:hover::after {
    opacity: 1;
    transform: translateY(-50%) translateX(0);
}
.card__cta-img { height: 18px; width: auto; display: block; }

/* License — integrata nel corpo card, pulita */
.card__license {
    margin-top: 1.25rem;
    padding-top: 1.25rem;
    border-top: 1px solid var(--border);
}
.card__license summary {
    cursor: pointer;
    font-family: var(--font-sans);
    font-size: .7rem; font-weight: 520; letter-spacing: .04em;
    color: var(--fg-dim);
    list-style: none;
    display: flex; align-items: center; gap: .4rem;
}
.card__license summary::-webkit-details-marker { display: none; }
.card__license summary::before {
    content: '+';
    display: inline-flex; align-items: center; justify-content: center;
    width: 16px; height: 16px;
    font-family: var(--font-mono, monospace);
    font-size: .65rem; font-weight: 500;
    color: var(--fg-dim);
    border: 1px solid var(--border);
    border-radius: 3px;
    transition: all .15s;
}
.card__license[open] summary::before { content: '−'; background: var(--fg); color: var(--bg); border-color: var(--fg); }
.card__license summary:hover { color: var(--fg-body); }
.card__license summary:hover::before { border-color: var(--fg-dim); }
.card__license p {
    margin-top: .75rem;
    font-size: .73rem; line-height: 1.7; color: var(--fg-muted);
    max-width: 100%;
}

/* ============================================================
   UNIVERSITÀ
   ============================================================ */
.universita {
    padding: 7rem 0;
    background: var(--bg-alt);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}
.universita__grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 5rem;
    align-items: center;
}
.universita__quote blockquote {
    border-left: 2px solid var(--accent);
    padding: 1.5rem 0 1.5rem 2rem;
    margin: 0;
}
.universita__quote p {
    font-family: var(--font-serif);
    font-size: 1.25rem;
    font-style: italic;
    color: var(--fg-body);
    line-height: 1.5;
}

/* ============================================================
   FOOTER
   ============================================================ */
.footer {
    padding: 5rem 0 2.5rem;
    background: var(--bg);
}
.footer__logo { height: 24px; width:auto; margin-bottom: .75rem; opacity: .7; }
.footer__grid {
    display: grid;
    grid-template-columns: 1.6fr 1fr 1fr;
    gap: 3rem;
    margin-bottom: 3rem;
}
.footer__grid p { font-size: .85rem; color: var(--fg-muted); line-height: 1.6; }
.footer__grid h4 {
    font-family: var(--font-sans);
    font-size: .7rem; font-weight: 560; letter-spacing: .1em;
    text-transform: uppercase; color: var(--fg-dim);
    margin-bottom: 1rem;
}
.footer__grid ul { list-style: none; }
.footer__grid li + li { margin-top: .5rem; }
.footer__grid a { font-size: .85rem; color: var(--fg-muted); }
.footer__grid a:hover { color: var(--accent); }

.footer__bottom {
    display: flex; align-items: center; justify-content: space-between;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border);
}
.footer__bottom p { font-size: .75rem; color: var(--fg-dim); }
.footer__bottom nav { display:flex; gap:1.5rem; }
.footer__bottom nav a { font-size: .75rem; color: var(--fg-dim); }
.footer__bottom nav a:hover { color: var(--accent); }

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 860px) {
    .nav__links { display:none; }
    .nav__hamburger { display:flex; }
    .hero__title { font-size: 2.2rem; }
    .card { grid-template-columns: 1fr; }
    .card__media { border-right:none; border-bottom:1px solid var(--border); padding:2rem; min-height:180px; }
    .card__media img { max-height:140px; }
    .card__body { padding:1.75rem; }
    .card__specs { grid-template-columns: 1fr 1fr; }
    .universita__grid { grid-template-columns: 1fr; gap: 2.5rem; }
    .footer__grid { grid-template-columns: 1fr 1fr; }
    .footer__bottom { flex-direction:column; gap:.75rem; text-align:center; }
}

@media (max-width: 480px) {
    .container { padding: 0 1.25rem; }
    .hero { padding: calc(var(--nav-h) + 2rem) 1.25rem 4rem; }
    .card__specs { grid-template-columns: 1fr; }
    .card__footer { flex-direction:row; align-items:center; justify-content:space-between; gap:1rem; }
    .hero__actions { flex-direction:column; width:100%; }
    .hero__actions .btn { width:100%; justify-content:center; }
    .footer__grid { grid-template-columns: 1fr; gap:2rem; }
}