:root {
    --bg: #050508;
    --surface: #0c0c10;
    --card: rgba(255, 255, 255, 0.03);
    --text: #f0f0f2;
    --text-secondary: rgba(240, 240, 242, 0.45);
    --accent: #4d7cff;
    --accent-alt: #7f4dff;
    --glow: rgba(77, 124, 255, 0.35);
    --glow-alt: rgba(168, 85, 247, 0.25);
    --border: rgba(255, 255, 255, 0.06);
    --font-body: 'Roboto', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-display: 'Poppins', 'Roboto', sans-serif;
}

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

html, body {
    width: 100%;
    height: 100%;
    overflow: hidden;
    background: var(--bg);
    color: var(--text);
    font-family: var(--font-body);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* -- Tipografia -- */
h1, h2, h3, h4, h5, h6, .font-display {
    font-family: var(--font-display);
    font-weight: 700;
    letter-spacing: -0.01em;
}

body, p, li, .font-body {
    font-family: var(--font-body);
    font-weight: 400;
}

/* ── Background ── */
.bg-container {
    position: fixed;
    inset: 0;
    z-index: 0;
    overflow: hidden;
}

#particleCanvas {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
}

.gradient-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(130px);
    will-change: transform;
    pointer-events: none;
}

.gradient-orb--1 {
    width: 55vw;
    height: 55vw;
    max-width: 750px;
    max-height: 750px;
    top: -25%;
    left: -15%;
    background: radial-gradient(circle, var(--accent) 0%, transparent 70%);
    opacity: 0.1;
}

.gradient-orb--2 {
    width: 45vw;
    height: 45vw;
    max-width: 650px;
    max-height: 650px;
    bottom: -20%;
    right: -10%;
    background: radial-gradient(circle, var(--accent-alt) 0%, transparent 70%);
    opacity: 0.08;
}

.grain-overlay {
    position: absolute;
    inset: 0;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='0.4'/%3E%3C/svg%3E");
    opacity: 0.025;
    pointer-events: none;
}

/* ── Header ── */
header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    padding: 2rem 3.5rem;
}

nav {
    display: flex;
    justify-content: flex-end;
    align-items: center;
}

.top-actions {
    display: inline-flex;
    align-items: center;
    gap: 1rem;
}

.lang-switch {
    position: fixed;
    bottom: 1.5rem;
    left: clamp(3rem, 8vw, 8rem);
    z-index: 100;
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.3rem 0.55rem;
    border: 1px solid var(--border);
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.03);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
}

.lang-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-family: var(--font-body);
    font-size: 0.72rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    line-height: 1;
    transition: color 0.2s ease;
}

.lang-link:hover {
    color: var(--text);
}

.lang-link:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
    border-radius: 3px;
}

.lang-link.is-active {
    display: none;
}

.lang-separator {
    display: none;
}

/* ── Entry-animation initial states (only when JS is present) ──
   Without JS the body never gets .js-anim, so every element
   stays at opacity:1 — fully readable by crawlers and RSS readers. */
body.js-anim .logo,
body.js-anim .tag,
body.js-anim .title-line,
body.js-anim .title-rule,
body.js-anim .subtitle,
body.js-anim .cta-card {
    opacity: 0;
}

.logo {
    font-family: var(--font-display);
    font-size: 1.4rem;
    font-weight: 700;
    letter-spacing: -0.5px;
    cursor: pointer;
    user-select: none;
    color: var(--text);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
}

.logo-icon{
    height: 40px;
}

.logo-dot {
    color: var(--accent);
    display: inline-block;
}

/* ── Split layout ── */
main {
    position: relative;
    z-index: 1;
    width: 100%;
    height: 100%;
    display: flex;
}

.col {
    flex: 1;
    display: flex;
    align-items: center;
}

.col--left {
    justify-content: flex-start;
    padding-left: clamp(3rem, 8vw, 8rem);
    padding-right: 2rem;
}

.col--right {
    justify-content: center;
    padding-right: clamp(3rem, 6vw, 6rem);
    padding-left: 2rem;
}

/* ── Hero (left) ── */
.hero-inner {
    max-width: 520px;
}

.tag {
    display: inline-block;
    font-size: 0.7rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 2.5px;
    color: var(--accent);
    border: 1px solid rgba(77, 124, 255, 0.25);
    padding: 0.4rem 1rem;
    border-radius: 100px;
    margin-bottom: 2rem;
}

.title {
    font-family: var(--font-display);
    font-size: clamp(2.6rem, 5.5vw, 4.8rem);
    font-weight: 700;
    line-height: 1.05;
    letter-spacing: -2.5px;
}

.title-line {
    display: block;
    white-space: nowrap;
}

.title-rule {
    width: 48px;
    height: 2px;
    background: linear-gradient(90deg, var(--accent), var(--accent-alt));
    margin: 1.75rem 0;
    border-radius: 2px;
    opacity: 0.7;
}

.subtitle {
    font-size: clamp(1rem, 1.6vw, 1.15rem);
    color: var(--text-secondary);
    font-weight: 300;
    letter-spacing: 0.3px;
    line-height: 1.6;
}

/* ── CTA card (right) ── */
.cta-inner {
    width: 100%;
    max-width: 380px;
}

.cta-card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 2.5rem;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
}

.cta-label {
    display: block;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--text-secondary);
    margin-bottom: 0.4rem;
}

.cta-heading {
    font-family: var(--font-display);
    font-size: clamp(1.5rem, 2.5vw, 2rem);
    font-weight: 600;
    letter-spacing: -0.5px;
    margin-bottom: 0.75rem;
}

.cta-desc {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 2rem;
}

.contact-btn {
    position: relative;
    display: inline-flex;
    align-items: center;
    padding: 0.9rem 2.6rem;
    font-family: var(--font-body);
    font-size: 0.9rem;
    font-weight: 600;
    letter-spacing: 0.3px;
    color: #fff;
    background: linear-gradient(135deg, #4d7cff 0%, #5f89ff 55%, #74a0ff 100%);
    border: none;
    border-radius: 100px;
    cursor: pointer;
    overflow: hidden;
    outline: none;
    isolation: isolate;
    box-shadow: 0 8px 20px rgba(77, 124, 255, 0.24);
}

.contact-btn:focus-visible {
    box-shadow: 0 0 0 3px var(--bg), 0 0 0 5px var(--accent);
}

.btn-text {
    position: relative;
    z-index: 1;
}

.btn-glow {
    position: absolute;
    inset: -2px;
    border-radius: inherit;
    background: radial-gradient(circle at 30% 30%, rgba(126, 168, 255, 0.75) 0%, rgba(77, 124, 255, 0.5) 52%, transparent 100%);
    filter: blur(20px);
    opacity: 0;
    z-index: 0;
    pointer-events: none;
}

/* ── Modal ── */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(5, 5, 8, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
}

.modal-content {
    background: var(--surface);
    width: 90%;
    max-width: 480px;
    padding: 2.75rem;
    border-radius: 20px;
    border: 1px solid var(--border);
    position: relative;
    box-shadow: 0 40px 80px rgba(0, 0, 0, 0.6);
}

.close-btn {
    position: absolute;
    top: 1.25rem;
    right: 1.25rem;
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border);
    border-radius: 10px;
    color: var(--text-secondary);
    cursor: pointer;
    transition: color 0.2s, background 0.2s;
}

.close-btn:hover {
    color: var(--text);
    background: rgba(255, 255, 255, 0.08);
}

.close-btn:focus-visible {
    box-shadow: 0 0 0 2px var(--accent);
}

.modal-title {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    letter-spacing: -0.5px;
}

.email-row {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    margin-bottom: 1.5rem;
}

.email-address {
    font-family: var(--font-display);
    font-size: 1rem;
    font-weight: 500;
    color: var(--text);
    letter-spacing: 0.1px;
}

.copy-icon-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border);
    border-radius: 7px;
    color: var(--text-secondary);
    cursor: pointer;
    outline: none;
    flex-shrink: 0;
    transition: background 0.2s, color 0.2s, border-color 0.2s;
}

.copy-icon-btn:hover {
    background: rgba(255, 255, 255, 0.09);
    color: var(--text);
}

.copy-icon-btn:focus-visible {
    box-shadow: 0 0 0 2px var(--accent);
}

.modal-actions {
    display: flex;
    gap: 0.75rem;
}

.btn-secondary {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.45rem;
    padding: 0.85rem 1rem;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border);
    border-radius: 12px;
    color: var(--text-secondary);
    font-family: var(--font-body);
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    outline: none;
    transition: background 0.2s, color 0.2s, border-color 0.2s;
    text-decoration: none;
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.09);
    color: var(--text);
    border-color: rgba(255, 255, 255, 0.12);
}

.btn-secondary:focus-visible {
    box-shadow: 0 0 0 2px var(--accent);
}

.btn-primary {
    flex: 1.4;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.45rem;
    padding: 0.85rem 1rem;
    background: linear-gradient(135deg, #4d7cff 0%, #5f89ff 55%, #74a0ff 100%);
    border: none;
    border-radius: 12px;
    color: #fff;
    font-family: var(--font-body);
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    outline: none;
    transition: opacity 0.2s, transform 0.15s;
    text-decoration: none;
}

.btn-primary:hover {
    opacity: 0.88;
    transform: translateY(-1px);
}

.btn-primary:focus-visible {
    box-shadow: 0 0 0 3px var(--surface), 0 0 0 5px var(--accent);
}

/* ── Responsive ── */
@media (max-width: 900px) {
    main {
        flex-direction: column;
        justify-content: center;
        align-items: center;
        gap: 3rem;
    }

    .col {
        flex: none;
        width: 100%;
        justify-content: center;
    }

    .col--left {
        padding: 0 2rem;
        justify-content: center;
    }

    .col--right {
        padding: 0 2rem;
    }

    .hero-inner {
        text-align: center;
    }

    .title-rule {
        margin-left: auto;
        margin-right: auto;
    }

    .cta-inner {
        max-width: 360px;
        margin: 0 auto;
    }

    .cta-card {
        text-align: center;
    }

    header {
        padding: 1.5rem 2rem;
    }

    .top-actions {
        gap: 0.75rem;
    }
}

@media (max-width: 480px) {
    .title {
        font-size: 2.2rem;
        letter-spacing: -1.5px;
    }

    .cta-heading {
        font-size: 1.3rem;
    }

    .cta-card {
        padding: 2rem 1.5rem;
    }

    .contact-btn {
        padding: 0.85rem 2rem;
    }

    .modal-content {
        padding: 2rem 1.5rem;
        border-radius: 16px;
    }
}

@media (max-height: 650px) and (min-width: 901px) {
    .hero-inner .tag {
        margin-bottom: 1rem;
    }

    .title-rule {
        margin-top: 1rem;
        margin-bottom: 1rem;
    }

    .cta-card {
        padding: 1.75rem;
    }

    .cta-desc {
        margin-bottom: 1.25rem;
    }
}