/* ══════════════════════════════════════════════════════════════
   TIPAK — sistema visivo condiviso dalle pagine di brand
   (root, chi-siamo/, articoli/) — stile minimal scuro ispirato a
   Linear/Stripe. Le pagine di prodotto (curriculab/, aziende/)
   hanno un proprio style.css indipendente.
   ══════════════════════════════════════════════════════════════ */

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

:root {
    --bg:      #050505;
    --bg2:     #0a0a0a;
    --card:    #0d0d0d;
    --b:       #1c1c1c;
    --b2:      #262626;
    --pri:     #f7f7f8;
    --mut:     #8b8f98;
    --acc:     #ff6a00;
    --acc-a:   rgba(255, 106, 0, 0.10);
    --acc-b:   rgba(255, 106, 0, 0.28);
    --green:   #16a34a;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    color: var(--pri);
    background: var(--bg);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

a { color: inherit; }

.wrap {
    max-width: 1120px;
    margin: 0 auto;
    padding-left: 6vw;
    padding-right: 6vw;
}

/* ── Reveal on scroll ── */
.reveal {
    opacity: 0;
    transform: translateY(16px);
    transition: opacity .6s ease, transform .6s ease;
}
.reveal.revealed {
    opacity: 1;
    transform: translateY(0);
}

/* ── Logo (riusato in ogni header) ── */
.tipak-logo {
    display: inline-flex;
    align-items: center;
    gap: 9px;
    text-decoration: none;
    color: inherit;
}
.tipak-logo-word {
    font-weight: 800;
    letter-spacing: 1.5px;
    font-size: 15px;
}

/* ── Nav ── */
.nav {
    position: sticky;
    top: 0;
    z-index: 100;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 6vw;
    background: rgba(5, 5, 5, 0.8);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--b);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav-links a {
    font-size: 13.5px;
    font-weight: 500;
    color: var(--mut);
    text-decoration: none;
    transition: color .15s;
}
.nav-links a:hover { color: var(--pri); }

.nav-cta {
    font-size: 13px;
    font-weight: 700;
    background: var(--acc);
    color: #050505;
    padding: 9px 16px;
    border-radius: 8px;
    text-decoration: none;
    transition: opacity .15s;
}
.nav-cta:hover { opacity: .88; }

.nav-toggle { display: none; }

@media (max-width: 780px) {
    .nav-links { display: none; }
}

/* ── Eyebrow label ── */
.eyebrow {
    display: inline-block;
    font-size: 11.5px;
    font-weight: 700;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--acc);
    margin-bottom: 16px;
}

/* ── Hero ── */
.hero {
    position: relative;
    max-width: 780px;
    margin: 0 auto;
    padding: 130px 6vw 100px;
    text-align: center;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -200px;
    left: 50%;
    transform: translateX(-50%);
    width: 900px;
    height: 500px;
    background: radial-gradient(ellipse at center, rgba(255, 106, 0, 0.14) 0%, transparent 65%);
    pointer-events: none;
    z-index: -1;
}

.hero h1 {
    font-size: clamp(38px, 6vw, 62px);
    font-weight: 800;
    line-height: 1.08;
    letter-spacing: -1.5px;
    margin-bottom: 24px;
}

.hero-sub {
    font-size: clamp(16px, 2vw, 19px);
    color: var(--mut);
    max-width: 600px;
    margin: 0 auto 40px;
}

.hero-sub strong { color: var(--pri); font-weight: 600; }

.hero-ctas {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 14px;
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-family: inherit;
    font-size: 14px;
    font-weight: 700;
    padding: 13px 22px;
    border-radius: 10px;
    text-decoration: none;
    border: 1px solid transparent;
    cursor: pointer;
    transition: opacity .15s, border-color .15s, transform .1s;
}

.btn-primary {
    background: var(--acc);
    color: #050505;
}
.btn-primary:hover { opacity: .88; }

.btn-secondary {
    background: transparent;
    color: var(--pri);
    border-color: var(--b2);
}
.btn-secondary:hover { border-color: var(--acc-b); }

.btn:active { transform: scale(.97); }

/* ── Sections ── */
.section {
    max-width: 1120px;
    margin: 0 auto;
    padding: 100px 6vw;
    border-top: 1px solid var(--b);
}

.section-head {
    max-width: 640px;
    margin: 0 auto 56px;
    text-align: center;
}

.section-head h2 {
    font-size: clamp(28px, 4vw, 40px);
    font-weight: 800;
    letter-spacing: -1px;
    line-height: 1.15;
}

.section-head p {
    margin-top: 16px;
    color: var(--mut);
    font-size: 15.5px;
}

/* ── Problema ── */
.problem-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1px;
    background: var(--b);
    border: 1px solid var(--b);
    border-radius: 16px;
    overflow: hidden;
}

.problem-item {
    background: var(--bg);
    padding: 32px 28px;
}

.problem-item i {
    font-size: 18px;
    color: var(--acc);
    margin-bottom: 16px;
    display: block;
}

.problem-item p {
    font-size: 14.5px;
    color: var(--mut);
    line-height: 1.6;
}
.problem-item strong { color: var(--pri); font-weight: 600; }

@media (max-width: 780px) {
    .problem-grid { grid-template-columns: 1fr; }
}

/* ── Prodotti ── */
.products-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.product-card {
    background: var(--card);
    border: 1px solid var(--b);
    border-radius: 18px;
    padding: 36px 32px;
    display: flex;
    flex-direction: column;
}

.product-badge {
    display: inline-flex;
    align-self: flex-start;
    align-items: center;
    gap: 6px;
    font-size: 11.5px;
    font-weight: 700;
    padding: 5px 11px;
    border-radius: 999px;
    margin-bottom: 20px;
}

.badge-live {
    background: rgba(22, 163, 74, 0.12);
    color: var(--green);
    border: 1px solid rgba(22, 163, 74, 0.3);
}

.badge-soon {
    background: var(--acc-a);
    color: var(--acc);
    border: 1px solid var(--acc-b);
}

.product-card h3 {
    font-size: 23px;
    font-weight: 800;
    letter-spacing: -.5px;
    margin-bottom: 12px;
}

.product-card > p {
    font-size: 14.5px;
    color: var(--mut);
    margin-bottom: 22px;
}

.product-features {
    list-style: none;
    margin-bottom: 28px;
    flex-grow: 1;
}

.product-features li {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    font-size: 13.5px;
    color: var(--pri);
    padding: 8px 0;
    border-top: 1px solid var(--b);
}
.product-features li:first-child { border-top: none; }

.product-features i {
    color: var(--acc);
    font-size: 12px;
    margin-top: 3px;
    flex-shrink: 0;
}

@media (max-width: 780px) {
    .products-grid { grid-template-columns: 1fr; }
}

/* ── Perché Tipak ── */
.why {
    text-align: center;
}

.why-body {
    max-width: 680px;
    margin: 0 auto;
    font-size: 16px;
    color: var(--mut);
    line-height: 1.75;
}

.why-body strong { color: var(--pri); }

/* ── FAQ ── */
.faq-list {
    max-width: 720px;
    margin: 0 auto;
}

.faq-item {
    border-top: 1px solid var(--b);
    padding: 4px 0;
}
.faq-item:last-child { border-bottom: 1px solid var(--b); }

.faq-item summary {
    list-style: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 20px 4px;
    font-size: 15.5px;
    font-weight: 600;
}
.faq-item summary::-webkit-details-marker { display: none; }

.faq-item summary::after {
    content: '+';
    font-size: 20px;
    font-weight: 400;
    color: var(--acc);
    flex-shrink: 0;
    transition: transform .2s;
}
.faq-item[open] summary::after { transform: rotate(45deg); }

.faq-item p {
    font-size: 14.5px;
    color: var(--mut);
    padding: 0 4px 22px;
    line-height: 1.65;
    max-width: 600px;
}

/* ── CTA finale ── */
.cta-final {
    text-align: center;
}

.cta-final p {
    color: var(--mut);
    max-width: 480px;
    margin: 0 auto 32px;
    font-size: 15.5px;
}

/* ── Footer ── */
.foot {
    max-width: 1120px;
    margin: 0 auto;
    padding: 60px 6vw 40px;
    border-top: 1px solid var(--b);
    display: flex;
    justify-content: space-between;
    gap: 40px;
    flex-wrap: wrap;
}

.foot-brand p {
    margin-top: 12px;
    color: var(--mut);
    font-size: 13px;
    max-width: 240px;
}

.foot-cols {
    display: flex;
    gap: 60px;
    flex-wrap: wrap;
}

.foot-col h4 {
    font-size: 11.5px;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--mut);
    margin-bottom: 14px;
}

.foot-col a {
    display: block;
    font-size: 13.5px;
    color: var(--pri);
    text-decoration: none;
    margin-bottom: 10px;
    transition: color .15s;
}
.foot-col a:hover { color: var(--acc); }

.foot-bottom {
    max-width: 1120px;
    margin: 0 auto;
    padding: 0 6vw 40px;
    color: var(--mut);
    font-size: 12px;
}

/* ── Content pages (chi-siamo, articoli) shared basics ── */
.content-page {
    max-width: 720px;
    margin: 0 auto;
    padding: 90px 6vw 100px;
}

.content-page h1 {
    font-size: clamp(32px, 5vw, 46px);
    font-weight: 800;
    letter-spacing: -1px;
    line-height: 1.15;
    margin-bottom: 20px;
}

.content-page .lede {
    font-size: 17px;
    color: var(--mut);
    margin-bottom: 40px;
}

.content-page h2 {
    font-size: 24px;
    font-weight: 800;
    letter-spacing: -.5px;
    margin: 40px 0 16px;
}

.content-page p {
    font-size: 15.5px;
    color: #cfd3d9;
    line-height: 1.8;
    margin-bottom: 18px;
}

.content-page ul {
    margin: 0 0 18px 20px;
    color: #cfd3d9;
    font-size: 15.5px;
    line-height: 1.8;
}

.back-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 13.5px;
    font-weight: 600;
    color: var(--mut);
    text-decoration: none;
    margin-bottom: 32px;
    transition: color .15s;
}
.back-link:hover { color: var(--acc); }

/* ── Articoli index ── */
.articles-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.article-card {
    display: block;
    background: var(--card);
    border: 1px solid var(--b);
    border-radius: 16px;
    padding: 28px 24px;
    text-decoration: none;
    transition: border-color .15s, transform .15s;
}
.article-card:hover {
    border-color: var(--acc-b);
    transform: translateY(-2px);
}

.article-card .eyebrow { margin-bottom: 14px; }

.article-card h3 {
    font-size: 17px;
    font-weight: 700;
    letter-spacing: -.3px;
    margin-bottom: 10px;
    line-height: 1.35;
}

.article-card p {
    font-size: 13.5px;
    color: var(--mut);
    line-height: 1.6;
}

@media (max-width: 780px) {
    .articles-grid { grid-template-columns: 1fr; }
}