/* =========================================================
   ZERVAQX — Landing Page
   Paleta oficial (Manual de Marca): preto, dourado premium, roxo neon.
   Dourado usado sobre fundos escuros (contraste fraco em branco).
   ========================================================= */

:root {
    --preto: #000000;
    --preto-suave: #0c0c10;
    --grafite: #16161c;
    --grafite-claro: #23232c;
    --branco: #f7f6f3;
    --cinza-texto: #b9b8c2;

    --dourado: #C7A32A;
    --dourado-grad-1: #BD9357;
    --dourado-grad-2: #DCB87A;
    --roxo: #9B30FF;
    --roxo-suave: #7E64A3;

    --fonte-titulo: 'Orbitron', 'Montserrat', sans-serif;
    --fonte-texto: 'Montserrat', sans-serif;

    --radius: 14px;
    --container: 1140px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
    margin: 0;
    background: var(--preto-suave);
    color: var(--branco);
    font-family: var(--fonte-texto);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

img, svg { display: block; max-width: 100%; }

a { color: inherit; text-decoration: none; }

.container {
    width: 100%;
    max-width: var(--container);
    margin: 0 auto;
    padding: 0 24px;
}

h1, h2, h3 {
    font-family: var(--fonte-titulo);
    font-weight: 700;
    line-height: 1.2;
    margin: 0 0 16px;
}

h1 { font-size: clamp(2rem, 4.5vw, 3.4rem); }
h2 { font-size: clamp(1.6rem, 3vw, 2.4rem); }
h3 { font-size: 1.15rem; }

p { margin: 0 0 16px; color: var(--cinza-texto); }

.eyebrow {
    text-transform: uppercase;
    letter-spacing: .14em;
    font-size: .78rem;
    font-weight: 700;
    color: var(--dourado);
    margin-bottom: 12px;
}

/* ---------- Botões ---------- */
.btn {
    display: inline-block;
    padding: 14px 28px;
    border-radius: 999px;
    font-weight: 600;
    font-size: .95rem;
    border: 1px solid transparent;
    cursor: pointer;
    transition: transform .15s ease, box-shadow .15s ease, background .15s ease;
}
.btn:hover { transform: translateY(-2px); }

.btn-primary {
    background: linear-gradient(135deg, var(--dourado-grad-1), var(--dourado-grad-2));
    color: #1a1204;
    box-shadow: 0 8px 24px rgba(199, 163, 42, .25);
}
.btn-primary:hover { box-shadow: 0 12px 30px rgba(199, 163, 42, .35); }

.btn-ghost {
    background: transparent;
    color: var(--branco);
    border-color: rgba(247, 246, 243, .35);
}
.btn-ghost:hover { border-color: var(--dourado); color: var(--dourado); }

.btn-whatsapp {
    background: var(--grafite-claro);
    color: var(--branco);
    border-color: rgba(155, 48, 255, .4);
    font-size: .85rem;
    padding: 10px 20px;
}
.btn-whatsapp:hover { border-color: var(--roxo); box-shadow: 0 0 0 3px rgba(155, 48, 255, .15); }

.btn-block { width: 100%; text-align: center; }

/* ---------- Header ---------- */
.site-header {
    position: sticky;
    top: 0;
    z-index: 50;
    background: rgba(0, 0, 0, .78);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(199, 163, 42, .15);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 24px;
    gap: 24px;
}

.brand {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--branco);
}
.brand-mark { color: var(--dourado); }
.logo-img { display: block; object-fit: contain; }
.brand-name {
    font-family: var(--fonte-titulo);
    font-weight: 700;
    letter-spacing: .08em;
    font-size: 1.15rem;
}

.main-nav { flex: 1; display: flex; justify-content: center; }

.nav-menu {
    display: flex;
    gap: 32px;
    list-style: none;
    margin: 0;
    padding: 0;
}
.nav-menu a {
    font-size: .92rem;
    font-weight: 500;
    color: var(--cinza-texto);
    transition: color .15s ease;
}
.nav-menu a:hover { color: var(--dourado); }

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 6px;
}
.nav-toggle span {
    width: 24px;
    height: 2px;
    background: var(--branco);
    display: block;
}

.header-cta { white-space: nowrap; }

/* ---------- Hero ---------- */
.hero {
    padding: 120px 0 90px;
    background:
        radial-gradient(ellipse at 20% 0%, rgba(155, 48, 255, .18), transparent 55%),
        radial-gradient(ellipse at 85% 20%, rgba(199, 163, 42, .16), transparent 50%),
        var(--preto);
    text-align: center;
}
.hero-inner { max-width: 780px; }
.hero-sub { font-size: 1.05rem; max-width: 620px; margin-left: auto; margin-right: auto; }
.hero-actions {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
    margin-top: 28px;
}

/* ---------- Sections ---------- */
.section { padding: 88px 0; }
.section-dark { background: var(--grafite); }
.section-lead { max-width: 720px; font-size: 1.05rem; }

.section-highlight {
    background:
        linear-gradient(120deg, rgba(155, 48, 255, .14), rgba(199, 163, 42, .1)),
        var(--preto-suave);
    border-top: 1px solid rgba(199, 163, 42, .15);
    border-bottom: 1px solid rgba(199, 163, 42, .15);
}
.highlight-inner { max-width: 720px; }

/* ---------- Vínculo institucional (Matheus Vontori) ---------- */
.section-vontori { background: var(--grafite); }

.vontori-inner {
    display: grid;
    grid-template-columns: 1fr 1.3fr;
    gap: 48px;
    align-items: center;
}

.vontori-logos {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 20px;
    background: var(--preto-suave);
    border: 1px solid rgba(199, 163, 42, .16);
    border-radius: var(--radius);
    padding: 32px;
}

.vontori-logo-zx { width: 84px; height: auto; }

.vontori-logo-mv {
    width: 190px;
    height: auto;
    border-radius: 10px;
    overflow: hidden;
}

.vontori-x {
    font-family: var(--fonte-titulo);
    font-size: 1.4rem;
    color: var(--roxo-suave);
}

.vontori-text .btn-ghost { margin-top: 8px; }

/* ---------- Cards / Ecossistema ---------- */
.grid-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 24px;
    margin-top: 40px;
}

.card {
    background: var(--preto-suave);
    border: 1px solid rgba(199, 163, 42, .16);
    border-radius: var(--radius);
    padding: 28px;
    transition: border-color .2s ease, transform .2s ease;
}
.card:hover {
    border-color: var(--dourado);
    transform: translateY(-4px);
}
.card-icon {
    display: inline-flex;
    color: var(--roxo);
    margin-bottom: 16px;
}
.card h3 { margin-bottom: 8px; color: var(--branco); }
.card p { margin: 0; font-size: .92rem; }

/* ---------- Diferenciais ---------- */
.check-list {
    list-style: none;
    margin: 32px 0 0;
    padding: 0;
    display: grid;
    gap: 16px;
    max-width: 720px;
}
.check-list li {
    position: relative;
    padding-left: 34px;
    font-size: 1rem;
    color: var(--branco);
}
.check-list li::before {
    content: "";
    position: absolute;
    left: 0;
    top: 4px;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--dourado-grad-1), var(--dourado-grad-2));
}
.check-list li::after {
    content: "";
    position: absolute;
    left: 6px;
    top: 9px;
    width: 9px;
    height: 5px;
    border-left: 2px solid #1a1204;
    border-bottom: 2px solid #1a1204;
    transform: rotate(-45deg);
}

/* ---------- Contato ---------- */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.15fr;
    gap: 56px;
    align-items: start;
}
.contact-list { margin-top: 24px; display: grid; gap: 10px; }

.contact-form {
    background: var(--grafite);
    border: 1px solid rgba(199, 163, 42, .16);
    border-radius: var(--radius);
    padding: 32px;
    display: grid;
    gap: 18px;
}
.form-row { display: grid; gap: 6px; }
.form-row-split {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 18px;
}
.form-row-split > div { display: grid; gap: 6px; }

label { font-size: .82rem; color: var(--cinza-texto); font-weight: 600; }

input, select, textarea {
    background: var(--preto-suave);
    border: 1px solid rgba(247, 246, 243, .18);
    border-radius: 8px;
    padding: 12px 14px;
    color: var(--branco);
    font-family: var(--fonte-texto);
    font-size: .95rem;
}
input:focus, select:focus, textarea:focus {
    outline: none;
    border-color: var(--dourado);
    box-shadow: 0 0 0 3px rgba(199, 163, 42, .18);
}
textarea { resize: vertical; }

.hp-field { position: absolute; left: -9999px; opacity: 0; }

.form-alert {
    padding: 12px 16px;
    border-radius: 8px;
    font-size: .9rem;
    margin: 0;
}
.form-alert-ok { background: rgba(90, 200, 120, .14); color: #7fe3a0; border: 1px solid rgba(90, 200, 120, .3); }
.form-alert-erro { background: rgba(220, 80, 80, .14); color: #ff9b9b; border: 1px solid rgba(220, 80, 80, .3); }

/* ---------- Footer ---------- */
.site-footer {
    background: var(--preto);
    border-top: 1px solid rgba(199, 163, 42, .15);
    padding: 64px 0 28px;
}
.footer-grid {
    display: grid;
    grid-template-columns: 1.6fr 1fr 1fr 1fr;
    gap: 40px;
}
.footer-brand .brand-name { color: var(--branco); }
.footer-slogan { font-size: .92rem; margin-top: 16px; }
.footer-founder { font-size: .85rem; color: var(--cinza-texto); }

.footer-col h3 {
    font-family: var(--fonte-texto);
    font-size: .85rem;
    text-transform: uppercase;
    letter-spacing: .08em;
    color: var(--dourado);
    margin-bottom: 16px;
}
.footer-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }
.footer-list a, .footer-list li { font-size: .88rem; color: var(--cinza-texto); }
.footer-list a:hover { color: var(--dourado); }

.footer-bottom {
    margin-top: 48px;
    padding-top: 24px;
    border-top: 1px solid rgba(247, 246, 243, .08);
    font-size: .8rem;
    color: var(--cinza-texto);
}

/* ---------- Responsivo ---------- */
@media (max-width: 900px) {
    .contact-grid { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr 1fr; }
    .vontori-inner { grid-template-columns: 1fr; text-align: center; }
    .vontori-text .btn-ghost { margin-top: 16px; }
}

@media (max-width: 760px) {
    .main-nav { position: fixed; inset: 72px 0 auto 0; }
    .nav-menu {
        display: none;
        flex-direction: column;
        background: rgba(0, 0, 0, .96);
        padding: 24px;
        gap: 18px;
        border-bottom: 1px solid rgba(199, 163, 42, .15);
    }
    .nav-menu.is-open { display: flex; }
    .nav-toggle { display: flex; }
    .header-cta { display: none; }
    .form-row-split { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; }
    .hero { padding: 96px 0 64px; }
}