/* =====================================================
   UPNOVA — Funnel (Sistemas) overlay styles
   Reutiliza tokens y utilidades de style.css
   ===================================================== */

:root {
    --funnel-gap: clamp(60px, 8vw, 120px);
}

/* ----- Generic ----- */
.f-section {
    position: relative;
    padding: var(--funnel-gap) clamp(20px, 4vw, 64px);
    max-width: var(--container);
    margin: 0 auto;
    z-index: 1;
}
.f-section--narrow { max-width: 980px; }

.f-head { text-align: center; max-width: 820px; margin: 0 auto 56px; }
.f-head h2 {
    font-size: clamp(28px, 4vw, 52px);
    margin-bottom: 14px;
}
.f-head h2 em { font-family: 'Instrument Serif', Georgia, serif; font-style: italic; color: var(--accent); font-weight: 400; }
.f-head p { color: var(--muted); font-size: clamp(15px, 1.4vw, 18px); }

.f-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 14px;
    border: 1px solid var(--border-2);
    border-radius: 999px;
    font-family: 'JetBrains Mono', monospace;
    font-size: 11px;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--text);
    background: var(--surface);
    margin-bottom: 18px;
}
.f-eyebrow .dot {
    width: 7px; height: 7px; border-radius: 50%;
    background: var(--accent);
    box-shadow: 0 0 12px var(--accent);
    animation: f-pulse 1.6s ease-in-out infinite;
}
@keyframes f-pulse { 0%,100% { opacity: 1 } 50% { opacity: .35 } }

/* ----- HERO ----- */
.f-hero {
    position: relative;
    padding: clamp(120px, 16vw, 180px) clamp(20px, 4vw, 64px) clamp(70px, 9vw, 120px);
    max-width: var(--container);
    margin: 0 auto;
    text-align: center;
    overflow: hidden;
}
.f-hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background:
        radial-gradient(700px 360px at 50% 0%, rgba(198,255,61,.10), transparent 60%),
        radial-gradient(900px 500px at 50% 100%, rgba(124,240,255,.08), transparent 70%);
    pointer-events: none;
    z-index: -1;
}
.f-hero h1 {
    font-size: clamp(40px, 6vw, 84px);
    line-height: 1.02;
    letter-spacing: -0.03em;
    margin-bottom: 24px;
    max-width: 1000px;
    margin-inline: auto;
}
.f-hero h1 em { font-family: 'Instrument Serif', Georgia, serif; font-style: italic; color: var(--accent); font-weight: 400; }
.f-hero__sub {
    color: var(--muted);
    font-size: clamp(16px, 1.5vw, 20px);
    max-width: 720px;
    margin: 0 auto 36px;
}
.f-hero__cta {
    display: flex;
    gap: 14px;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 28px;
}
.f-hero__trust {
    display: inline-flex;
    align-items: center;
    gap: 14px;
    color: var(--muted);
    font-size: 13px;
    font-family: 'JetBrains Mono', monospace;
    flex-wrap: wrap;
    justify-content: center;
}
.f-hero__avatars {
    display: inline-flex;
}
.f-hero__avatars span {
    width: 28px; height: 28px; border-radius: 50%;
    background: var(--grad);
    border: 2px solid var(--bg);
    margin-left: -8px;
}
.f-hero__avatars span:first-child { margin-left: 0; }

.f-hero__stats {
    margin-top: 56px;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: 20px;
    max-width: 880px;
    margin-inline: auto;
}
.f-hero__stats div {
    padding: 22px 16px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: var(--surface);
    text-align: center;
}
.f-hero__stats dt {
    font-size: clamp(24px, 2.6vw, 36px);
    font-weight: 600;
    background: var(--grad);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}
.f-hero__stats dd {
    color: var(--muted);
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: .12em;
    margin-top: 6px;
}

/* ----- PAIN ----- */
.f-pain__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 22px;
}
.f-pain__card {
    padding: 28px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: linear-gradient(180deg, rgba(255,255,255,.02), rgba(255,255,255,0));
    transition: border-color .3s var(--ease), transform .3s var(--ease);
}
.f-pain__card:hover { border-color: var(--border-2); transform: translateY(-3px); }
.f-pain__card .ico {
    width: 44px; height: 44px;
    display: grid; place-items: center;
    border-radius: 12px;
    background: rgba(255,80,80,.08);
    color: #ff7676;
    font-size: 20px;
    margin-bottom: 14px;
    border: 1px solid rgba(255,80,80,.18);
}
.f-pain__card h3 { font-size: 18px; margin-bottom: 8px; }
.f-pain__card p { color: var(--muted); font-size: 14px; }

/* ----- SYSTEMS ----- */
.f-systems__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(290px, 1fr));
    gap: 22px;
}
.f-sysCard {
    position: relative;
    padding: 30px;
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    background: linear-gradient(180deg, rgba(255,255,255,.03), rgba(255,255,255,0));
    overflow: hidden;
    transition: transform .35s var(--ease), border-color .35s var(--ease);
}
.f-sysCard:hover { transform: translateY(-6px); border-color: var(--border-2); }
.f-sysCard::after {
    content: '';
    position: absolute;
    inset: -1px;
    background: var(--grad);
    border-radius: inherit;
    opacity: 0;
    z-index: -1;
    transition: opacity .35s var(--ease);
}
.f-sysCard:hover::after { opacity: .35; filter: blur(20px); }
.f-sysCard__tag {
    display: inline-block;
    padding: 4px 10px;
    border-radius: 999px;
    background: rgba(198,255,61,.10);
    color: var(--accent);
    font-family: 'JetBrains Mono', monospace;
    font-size: 10px;
    letter-spacing: .14em;
    text-transform: uppercase;
    margin-bottom: 16px;
}
.f-sysCard h3 { font-size: 22px; margin-bottom: 10px; }
.f-sysCard > p { color: var(--muted); font-size: 14px; margin-bottom: 18px; }
.f-sysCard ul { list-style: none; margin-bottom: 22px; }
.f-sysCard ul li {
    color: var(--text);
    font-size: 13.5px;
    padding-left: 22px;
    position: relative;
    margin-bottom: 8px;
}
.f-sysCard ul li::before {
    content: '✓';
    color: var(--accent);
    font-weight: 700;
    position: absolute;
    left: 0;
}
.f-sysCard__foot {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 18px;
    border-top: 1px solid var(--border);
}
.f-sysCard__price {
    font-family: 'JetBrains Mono', monospace;
    font-size: 12px;
    color: var(--muted);
}
.f-sysCard__price strong { color: var(--text); font-size: 16px; }
.f-sysCard__link {
    font-family: 'JetBrains Mono', monospace;
    font-size: 12px;
    letter-spacing: .12em;
    text-transform: uppercase;
    color: var(--accent);
}

/* ----- HOW IT WORKS ----- */
.f-how__steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 22px;
    counter-reset: step;
}
.f-how__step {
    position: relative;
    padding: 30px 26px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: var(--surface);
}
.f-how__step::before {
    counter-increment: step;
    content: counter(step, decimal-leading-zero);
    position: absolute;
    top: -18px;
    left: 26px;
    background: var(--bg);
    padding: 4px 10px;
    border: 1px solid var(--border-2);
    border-radius: 8px;
    font-family: 'JetBrains Mono', monospace;
    font-size: 12px;
    color: var(--accent);
}
.f-how__step h3 { font-size: 18px; margin-bottom: 8px; }
.f-how__step p { color: var(--muted); font-size: 14px; }

/* ----- COMPARE TABLE ----- */
.f-compare {
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    background: var(--surface);
}
.f-compare table { width: 100%; border-collapse: collapse; }
.f-compare th, .f-compare td {
    padding: 18px 20px;
    text-align: left;
    border-bottom: 1px solid var(--border);
    font-size: 14.5px;
}
.f-compare th {
    font-family: 'JetBrains Mono', monospace;
    font-size: 11px;
    letter-spacing: .14em;
    text-transform: uppercase;
    color: var(--muted);
    font-weight: 500;
    background: rgba(255,255,255,.02);
}
.f-compare td.f-yes { color: var(--accent); font-weight: 600; }
.f-compare td.f-no { color: #ff7676; }
.f-compare th.f-col-up { color: var(--accent); }
.f-compare tr:last-child td { border-bottom: 0; }

/* ----- PRICING ----- */
.f-price__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 22px;
    align-items: stretch;
}
.f-priceCard {
    position: relative;
    padding: 34px 30px;
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    background: var(--surface);
    display: flex;
    flex-direction: column;
}
.f-priceCard--featured {
    border-color: transparent;
    background:
        linear-gradient(var(--bg-2), var(--bg-2)) padding-box,
        var(--grad) border-box;
    border: 1px solid transparent;
    transform: translateY(-6px);
}
.f-priceCard__badge {
    position: absolute;
    top: -14px; left: 50%;
    transform: translateX(-50%);
    padding: 6px 14px;
    border-radius: 999px;
    background: var(--accent);
    color: #000;
    font-family: 'JetBrains Mono', monospace;
    font-size: 10px;
    letter-spacing: .14em;
    text-transform: uppercase;
    font-weight: 600;
}
.f-priceCard h3 { font-size: 18px; margin-bottom: 6px; }
.f-priceCard__sub { color: var(--muted); font-size: 13px; margin-bottom: 22px; }
.f-priceCard__amount {
    display: flex;
    align-items: baseline;
    gap: 6px;
    margin-bottom: 6px;
}
.f-priceCard__amount strong {
    font-size: clamp(34px, 4vw, 46px);
    font-weight: 600;
    letter-spacing: -0.02em;
}
.f-priceCard__amount span { color: var(--muted); font-size: 14px; }
.f-priceCard__note { color: var(--dim); font-size: 12px; margin-bottom: 24px; }
.f-priceCard ul { list-style: none; margin-bottom: 28px; flex: 1; }
.f-priceCard ul li {
    color: var(--text);
    font-size: 14px;
    padding-left: 22px;
    position: relative;
    margin-bottom: 10px;
}
.f-priceCard ul li::before {
    content: '✓'; color: var(--accent); font-weight: 700;
    position: absolute; left: 0;
}
.f-priceCard ul li.muted { color: var(--dim); }
.f-priceCard ul li.muted::before { content: '–'; color: var(--dim); }
.f-priceCard .btn { width: 100%; justify-content: center; }

/* ----- GUARANTEE ----- */
.f-guarantee {
    display: grid;
    grid-template-columns: 110px 1fr;
    gap: 28px;
    align-items: center;
    padding: 36px;
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    background: linear-gradient(135deg, rgba(198,255,61,.06), rgba(124,240,255,.04));
}
.f-guarantee__seal {
    width: 110px; height: 110px;
    border-radius: 50%;
    background: var(--grad);
    display: grid; place-items: center;
    color: #000;
    font-family: 'Instrument Serif', Georgia, serif;
    font-style: italic;
    font-size: 28px;
    line-height: 1;
    text-align: center;
    box-shadow: 0 0 40px rgba(198,255,61,.25);
}
.f-guarantee h3 { font-size: 22px; margin-bottom: 8px; }
.f-guarantee p { color: var(--muted); font-size: 14.5px; }
@media (max-width: 640px) {
    .f-guarantee { grid-template-columns: 1fr; text-align: center; justify-items: center; }
}

/* ----- FAQ ----- */
.f-faq__list { display: grid; gap: 12px; max-width: 820px; margin: 0 auto; }
.f-faq__item {
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: var(--surface);
    overflow: hidden;
}
.f-faq__item summary {
    list-style: none;
    cursor: pointer;
    padding: 22px 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
    font-weight: 500;
    font-size: 16px;
    user-select: none;
}
.f-faq__item summary::-webkit-details-marker { display: none; }
.f-faq__item summary::after {
    content: '+';
    color: var(--accent);
    font-size: 22px;
    line-height: 1;
    transition: transform .25s var(--ease);
}
.f-faq__item[open] summary::after { transform: rotate(45deg); }
.f-faq__item p {
    padding: 0 24px 22px;
    color: var(--muted);
    font-size: 14.5px;
}

/* ----- FINAL CTA ----- */
.f-finalCta {
    position: relative;
    text-align: center;
    padding: clamp(60px, 8vw, 100px) clamp(24px, 4vw, 60px);
    border: 1px solid var(--border-2);
    border-radius: var(--radius-lg);
    background:
        radial-gradient(700px 360px at 50% 0%, rgba(198,255,61,.10), transparent 70%),
        var(--bg-2);
    overflow: hidden;
}
.f-finalCta h2 {
    font-size: clamp(28px, 4vw, 52px);
    margin-bottom: 16px;
    max-width: 760px;
    margin-inline: auto;
}
.f-finalCta h2 em { font-family: 'Instrument Serif', Georgia, serif; font-style: italic; color: var(--accent); font-weight: 400; }
.f-finalCta p { color: var(--muted); margin-bottom: 32px; max-width: 600px; margin-inline: auto; }
.f-finalCta__form {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    max-width: 620px;
    margin: 0 auto;
    text-align: left;
}
.f-finalCta__form label { display: grid; gap: 6px; }
.f-finalCta__form .full { grid-column: 1 / -1; }
.f-finalCta__form span {
    font-family: 'JetBrains Mono', monospace;
    font-size: 11px;
    letter-spacing: .14em;
    text-transform: uppercase;
    color: var(--muted);
}
.f-finalCta__form input,
.f-finalCta__form select,
.f-finalCta__form textarea {
    width: 100%;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 14px 16px;
    color: var(--text);
    transition: border-color .25s var(--ease);
}
.f-finalCta__form input:focus,
.f-finalCta__form select:focus,
.f-finalCta__form textarea:focus {
    outline: none;
    border-color: var(--accent);
}
.f-finalCta__form button { margin-top: 8px; justify-self: center; }
.f-finalCta__ok {
    display: none;
    margin-top: 18px;
    color: var(--accent);
    font-family: 'JetBrains Mono', monospace;
    font-size: 13px;
}
.f-finalCta__ok.is-on { display: block; }

/* ----- Sticky urgency bar ----- */
.f-urgency {
    position: sticky;
    top: 0;
    z-index: 50;
    background: var(--accent);
    color: #000;
    text-align: center;
    padding: 10px 16px;
    font-family: 'JetBrains Mono', monospace;
    font-size: 12px;
    letter-spacing: .12em;
    text-transform: uppercase;
}
.f-urgency a { color: #000; text-decoration: underline; font-weight: 600; }

@media (max-width: 640px) {
    .f-finalCta__form { grid-template-columns: 1fr; }
    .f-compare table, .f-compare thead, .f-compare tbody, .f-compare th, .f-compare td, .f-compare tr {
        display: block;
    }
    .f-compare thead { display: none; }
    .f-compare tr { border-bottom: 1px solid var(--border); padding: 8px 0; }
    .f-compare td { border: 0; padding: 8px 16px; }
    .f-compare td::before {
        content: attr(data-label);
        display: block;
        font-family: 'JetBrains Mono', monospace;
        font-size: 10px;
        letter-spacing: .14em;
        text-transform: uppercase;
        color: var(--muted);
        margin-bottom: 4px;
    }
}