/* =====================================================================
   RadioRW — site institucional
   Identidade: noite índigo, sinal ciano, violeta/magenta das ondas.
   Display: Outfit · Texto: Figtree · Rótulos técnicos: JetBrains Mono
   ===================================================================== */

:root {
    --night: #050826;
    --night-2: #0b1146;
    --night-3: #111a5e;
    --panel: rgba(18, 26, 88, 0.55);
    --panel-solid: #0d1450;
    --line: rgba(138, 156, 255, 0.16);
    --line-strong: rgba(138, 156, 255, 0.32);

    --cyan: #22d3ee;
    --cyan-2: #06b6d4;
    --blue: #2563eb;
    --violet: #8b5cf6;
    --magenta: #d946ef;
    --green: #22c55e;

    --ink: #f1f4ff;
    --muted: #a6aedb;
    --dim: #6e77ae;

    --grad-signal: linear-gradient(100deg, var(--cyan) 0%, #38bdf8 45%, var(--blue) 100%);
    --grad-wave: linear-gradient(100deg, var(--cyan), var(--violet) 55%, var(--magenta));

    --font-display: 'Outfit', system-ui, sans-serif;
    --font-body: 'Figtree', system-ui, sans-serif;
    --font-mono: 'JetBrains Mono', ui-monospace, monospace;

    --radius: 18px;
    --radius-sm: 12px;
    --header-h: 84px;
    --shadow: 0 30px 60px -30px rgba(0, 0, 0, 0.7);
}

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

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
    margin: 0;
    background: var(--night);
    color: var(--ink);
    font-family: var(--font-body);
    font-size: 17px;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

img { max-width: 100%; display: block; }
a { color: inherit; }
h1, h2, h3 { font-family: var(--font-display); line-height: 1.08; margin: 0; letter-spacing: -0.02em; }
p { margin: 0 0 1em; }
em { font-style: normal; background: var(--grad-signal); -webkit-background-clip: text; background-clip: text; color: transparent; }
:focus-visible { outline: 3px solid var(--cyan); outline-offset: 3px; border-radius: 6px; }

.container { width: min(1240px, 100% - 48px); margin-inline: auto; }
.container.narrow { width: min(860px, 100% - 48px); }
.center { text-align: center; margin-top: 40px; }

.skip-link {
    position: absolute; left: 16px; top: -60px; z-index: 200;
    background: var(--cyan); color: var(--night); padding: 10px 16px; border-radius: 10px; font-weight: 700;
}
.skip-link:focus { top: 16px; }

/* ---------- Rótulos ---------- */
.eyebrow {
    font-family: var(--font-mono);
    font-size: 0.76rem;
    font-weight: 700;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--cyan);
    margin-bottom: 14px;
}
.eyebrow-pill {
    display: inline-flex; align-items: center; gap: 10px;
    padding: 8px 16px 8px 12px;
    border: 1px solid var(--line-strong);
    border-radius: 999px;
    background: linear-gradient(90deg, rgba(139, 92, 246, 0.22), rgba(37, 99, 235, 0.12));
    color: var(--ink);
}
.eyebrow-pill i { color: var(--cyan); }
.lead { font-size: 1.18rem; color: var(--muted); max-width: 640px; }

/* ---------- Botões ---------- */
.btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 10px;
    padding: 12px 22px;
    border-radius: 12px;
    border: 1.5px solid transparent;
    font-family: var(--font-display);
    font-weight: 600;
    font-size: 1rem;
    text-decoration: none;
    cursor: pointer;
    transition: transform .2s ease, box-shadow .2s ease, background-color .2s ease, border-color .2s ease;
    white-space: nowrap;
}
.btn:hover { transform: translateY(-2px); }
.btn-primary { background: var(--grad-signal); color: #04102e; box-shadow: 0 14px 30px -14px rgba(34, 211, 238, 0.8); }
.btn-primary:hover { box-shadow: 0 18px 36px -14px rgba(34, 211, 238, 0.95); }
.btn-ghost { border-color: rgba(241, 244, 255, 0.7); color: var(--ink); background: rgba(255, 255, 255, 0.02); }
.btn-ghost:hover { border-color: var(--ink); background: rgba(255, 255, 255, 0.08); }
.btn-outline { border-color: var(--line-strong); color: var(--ink); background: rgba(34, 211, 238, 0.04); }
.btn-outline:hover { border-color: var(--cyan); color: var(--cyan); }
.btn-lg { padding: 15px 26px; font-size: 1.05rem; }
.btn-block { width: 100%; }
.link-arrow { color: var(--cyan); font-weight: 600; text-decoration: none; display: inline-flex; gap: 8px; align-items: center; }
.link-arrow:hover i { transform: translateX(3px); }
.link-arrow i { transition: transform .2s; font-size: .85em; }

/* ---------- Header ---------- */
.site-header {
    position: fixed; inset: 0 0 auto; z-index: 100;
    height: var(--header-h);
    display: flex; align-items: center;
    transition: background-color .3s ease, box-shadow .3s ease, height .3s ease;
}
.site-header.is-scrolled {
    --header-h: 70px;
    background: rgba(5, 8, 38, 0.82);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    box-shadow: 0 1px 0 var(--line);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; gap: 24px; }

.brand { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; flex-shrink: 0; }
.brand-mark { width: 46px; height: 46px; filter: drop-shadow(0 6px 14px rgba(34, 211, 238, 0.35)); }
.brand-text { display: grid; line-height: 1; }
.brand-word { font-family: var(--font-display); font-weight: 800; font-style: italic; font-size: 1.75rem; letter-spacing: -0.03em; }
.brand-word b { background: var(--grad-signal); -webkit-background-clip: text; background-clip: text; color: transparent; padding-right: .06em; }
.brand-tagline { font-size: .7rem; color: var(--muted); margin-top: 4px; letter-spacing: .01em; }
.brand-wave { animation: brandWave 2.4s ease-in-out infinite; }
.brand-wave-2 { animation-delay: .3s; }
@keyframes brandWave { 0%, 100% { opacity: 1; } 50% { opacity: .35; } }

.main-nav { display: flex; align-items: center; gap: 34px; }
.main-nav ul { display: flex; gap: 6px; list-style: none; margin: 0; padding: 0; }
.main-nav ul a {
    display: block; padding: 8px 12px; border-radius: 10px;
    text-decoration: none; font-weight: 500; color: var(--ink); opacity: .86;
    position: relative;
}
.main-nav ul a:hover { opacity: 1; background: rgba(255, 255, 255, 0.06); }
.main-nav ul a[aria-current="page"] { opacity: 1; }
.main-nav ul a[aria-current="page"]::after {
    content: ''; position: absolute; left: 12px; right: 12px; bottom: 2px; height: 2px; border-radius: 2px; background: var(--grad-signal);
}
.nav-actions { display: flex; gap: 12px; }
.nav-actions .btn { padding: 10px 18px; font-size: .95rem; }

.nav-toggle { display: none; width: 46px; height: 46px; border: 1px solid var(--line-strong); border-radius: 12px; background: rgba(255,255,255,.04); cursor: pointer; padding: 0; flex-direction: column; align-items: center; justify-content: center; gap: 5px; }
.nav-toggle span { width: 20px; height: 2px; background: var(--ink); border-radius: 2px; transition: transform .25s, opacity .25s; }
.nav-open .nav-toggle span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-open .nav-toggle span:nth-child(2) { opacity: 0; }
.nav-open .nav-toggle span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- Hero ---------- */
.hero { position: relative; padding: calc(var(--header-h) + 56px) 0 0; isolation: isolate; }
.hero-bg { position: absolute; inset: 0; z-index: -1; overflow: hidden; }
.hero-glow {
    position: absolute; inset: 0;
    background:
        radial-gradient(60% 50% at 78% 30%, rgba(37, 99, 235, 0.32), transparent 70%),
        radial-gradient(40% 40% at 100% 60%, rgba(217, 70, 239, 0.28), transparent 70%),
        radial-gradient(45% 45% at 0% 85%, rgba(139, 92, 246, 0.32), transparent 70%),
        linear-gradient(180deg, #060a2e 0%, var(--night) 100%);
}
.hero-waves { position: absolute; left: 0; right: 0; bottom: 6%; width: 100%; height: 46%; }
.wave { fill: none; stroke-width: 2.4; opacity: .75; stroke-dasharray: 1400; stroke-dashoffset: 1400; animation: waveDraw 2.4s ease-out forwards; filter: drop-shadow(0 0 8px rgba(34, 211, 238, .5)); }
.wave-b { stroke-width: 1.6; animation-delay: .25s; opacity: .6; }
.wave-c { stroke-width: 1; animation-delay: .5s; opacity: .45; }
@keyframes waveDraw { to { stroke-dashoffset: 0; } }

.hero-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr); gap: 48px; align-items: center; }
.hero-copy h1 { font-size: clamp(2.6rem, 5.2vw, 4.5rem); font-weight: 800; letter-spacing: -0.018em; line-height: 1.04; margin: 6px 0 22px; }
.hero-copy .lead { margin-bottom: 22px; }
.checklist { list-style: none; padding: 0; margin: 0 0 32px; display: grid; gap: 10px; }
.checklist li { display: flex; align-items: center; gap: 12px; font-size: 1.05rem; }
.checklist i { color: var(--green); font-size: 1.25rem; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; }

/* Vitrine (assinatura): notebook + celular com telas reais e régua de sintonia */
.showcase { position: relative; }
.showcase-stage { position: relative; padding: 0 64px 40px 0; }
.laptop { position: relative; z-index: 1; transform: perspective(1600px) rotateY(-9deg) rotateX(3deg); transform-origin: left center; }
.laptop-screen {
    position: relative; aspect-ratio: 16 / 10; overflow: hidden;
    border-radius: 16px 16px 4px 4px;
    border: 10px solid #121633;
    border-bottom-width: 14px;
    background: #000;
    box-shadow: 0 0 0 1px rgba(255,255,255,.08), 0 40px 80px -30px rgba(0,0,0,.9), 0 0 80px -20px rgba(37, 99, 235, .55);
}
.laptop-base {
    height: 16px; margin: 0 -7%;
    background: linear-gradient(180deg, #c8cde4 0%, #8a90ad 60%, #4c5170 100%);
    border-radius: 0 0 16px 16px;
    clip-path: polygon(0 0, 100% 0, 97% 100%, 3% 100%);
}
.laptop-screen img, .phone-screen img {
    position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; object-position: top center;
    opacity: 0; transform: scale(1.03);
    transition: opacity .7s ease, transform 1.2s ease;
}
.laptop-screen img.is-on, .phone-screen img.is-on { opacity: 1; transform: none; }

.phone {
    position: absolute; right: 0; bottom: 0; z-index: 2;
    width: 27%; aspect-ratio: 390 / 844;
    border-radius: 28px; padding: 8px;
    background: linear-gradient(160deg, #2a2f55, #0d1030);
    box-shadow: 0 0 0 1px rgba(255,255,255,.12), 0 30px 60px -20px rgba(0,0,0,.9), 0 0 50px -10px rgba(139, 92, 246, .6);
}
.phone::before { content: ''; position: absolute; top: 14px; left: 50%; width: 30%; height: 5px; margin-left: -15%; background: #05071a; border-radius: 4px; z-index: 3; }
.phone-screen { position: relative; width: 100%; height: 100%; overflow: hidden; border-radius: 21px; background: #000; }

.showcase-eq { position: absolute; z-index: 0; left: 12%; right: 4%; bottom: 4%; height: 62%; display: flex; align-items: flex-end; gap: 6px; opacity: .4; pointer-events: none; filter: blur(.5px); }
.showcase-eq i, .cta-eq i {
    flex: 1; border-radius: 3px 3px 0 0;
    background: linear-gradient(0deg, var(--blue), var(--cyan));
    height: 30%;
    animation: eq 1.6s ease-in-out infinite alternate;
    animation-delay: calc(var(--d) * -0.17s);
}
@keyframes eq { 0% { height: 18%; } 50% { height: 82%; } 100% { height: 40%; } }

.dial { margin-top: 26px; }
.dial-label { font-family: var(--font-mono); font-size: .7rem; letter-spacing: .14em; text-transform: uppercase; color: var(--dim); }
.dial-scale {
    position: relative; display: grid; grid-template-columns: repeat(6, 1fr);
    margin-top: 10px; padding-top: 16px;
    background: repeating-linear-gradient(90deg, var(--line-strong) 0 1px, transparent 1px 12px) top / 100% 8px no-repeat;
    border-top: 1px solid var(--line);
}
.dial-scale button {
    background: none; border: 0; color: var(--muted); cursor: pointer;
    padding: 6px 4px; text-align: left; font: inherit; display: grid; gap: 2px;
    transition: color .25s;
}
.dial-scale button:hover { color: var(--ink); }
.dial-scale button[aria-selected="true"] { color: var(--ink); }
.dial-name { font-family: var(--font-display); font-weight: 700; font-size: 1rem; }
.dial-kind { font-family: var(--font-mono); font-size: .62rem; letter-spacing: .06em; text-transform: uppercase; color: var(--dim); }
.dial-scale button[aria-selected="true"] .dial-kind { color: var(--cyan); }
.dial-needle {
    position: absolute; top: -9px; left: 0; width: 3px; height: 26px; border-radius: 2px;
    background: var(--cyan); box-shadow: 0 0 14px 2px rgba(34, 211, 238, .8);
    transition: left .55s cubic-bezier(.65, 0, .35, 1);
}

.hero-plans { position: relative; padding: 70px 0 30px; }

/* ---------- Planos ---------- */
.plans { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 24px; align-items: stretch; }
.plan {
    position: relative; display: flex; flex-direction: column; align-items: center; text-align: center;
    padding: 30px 28px 28px;
    border: 1.5px solid rgba(34, 211, 238, 0.35);
    border-radius: var(--radius);
    background: linear-gradient(180deg, rgba(17, 26, 94, 0.78), rgba(8, 12, 52, 0.88));
    box-shadow: inset 0 1px 0 rgba(255,255,255,.06), 0 0 40px -18px rgba(34, 211, 238, .5);
}
.plan.is-featured {
    border-color: rgba(217, 70, 239, 0.75);
    background: linear-gradient(180deg, rgba(64, 22, 120, 0.7), rgba(16, 10, 60, 0.9));
    box-shadow: inset 0 1px 0 rgba(255,255,255,.08), 0 0 50px -14px rgba(217, 70, 239, .7);
}
.plan-flag {
    position: absolute; top: -15px; left: 50%; transform: translateX(-50%);
    padding: 5px 16px; border-radius: 10px;
    background: linear-gradient(90deg, var(--violet), var(--magenta));
    font-family: var(--font-display); font-weight: 600; font-size: .9rem; white-space: nowrap;
}
.plan-head { display: flex; align-items: center; gap: 14px; }
.plan-icon { font-size: 1.9rem; color: var(--cyan); }
.plan.is-featured .plan-icon { color: var(--magenta); }
.plan h3 { font-size: 1.6rem; font-weight: 600; }
.plan-ips {
    margin: 16px 0 10px; padding: 6px 20px; border-radius: 999px;
    background: rgba(37, 99, 235, 0.32); border: 1px solid rgba(34, 211, 238, .3);
    font-family: var(--font-display); font-size: 1.2rem; font-weight: 600;
}
.plan.is-featured .plan-ips { background: rgba(139, 92, 246, 0.4); border-color: rgba(217, 70, 239, .45); }
.plan-ips strong { font-size: 1.5rem; font-weight: 800; }
.ip-meter { display: flex; gap: 3px; height: 18px; align-items: flex-end; margin-bottom: 14px; }
.ip-meter i { width: 4px; height: 35%; border-radius: 2px; background: rgba(166, 174, 219, .22); }
.ip-meter i:nth-child(3n) { height: 60%; }
.ip-meter i:nth-child(4n) { height: 85%; }
.ip-meter i.on { background: var(--cyan); box-shadow: 0 0 6px rgba(34, 211, 238, .8); }
.plan.is-featured .ip-meter i.on { background: var(--magenta); box-shadow: 0 0 6px rgba(217, 70, 239, .8); }
.plan-summary { color: var(--muted); font-size: 1.05rem; margin-bottom: 22px; flex: 1; }
.plan .btn { margin-top: auto; }
.plans-detailed .plan { text-align: left; align-items: stretch; }
.plans-detailed .plan-head, .plans-detailed .plan-ips { align-self: flex-start; }
.plans-detailed .plan-summary { flex: 0; margin-bottom: 8px; color: var(--ink); font-weight: 600; }
.plan-audience { color: var(--muted); font-size: .97rem; }
.plan-price { margin: 4px 0 18px; padding: 16px 0; border-block: 1px solid var(--line); }
.plan-price strong { font-family: var(--font-display); font-size: 2rem; font-weight: 800; }
.plan-price span { color: var(--muted); }
.plan-list { list-style: none; padding: 0; margin: 0 0 26px; display: grid; gap: 10px; flex: 1; }
.plan-list li { display: flex; gap: 10px; color: var(--muted); }
.plan-list i { color: var(--cyan); margin-top: 5px; font-size: .9rem; }

/* ---------- Seções ---------- */
.section { padding: 96px 0; position: relative; }
.section-tight { padding: 56px 0 72px; }
.section-head { text-align: center; max-width: 760px; margin: 0 auto 52px; }
.section-head h2, .split h2, .resale-band h2, .feature-group-head h2, .model-info h2 { font-size: clamp(2rem, 3.6vw, 3rem); font-weight: 800; }
.section-lead { color: var(--muted); font-size: 1.1rem; margin-top: 16px; }
.section-head-split { display: flex; justify-content: space-between; align-items: flex-end; text-align: left; max-width: none; gap: 24px; }

.section-promise { padding-top: 70px; }
.promise-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 24px; }
.promise-grid-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.promise {
    padding: 30px; border-radius: var(--radius);
    background: var(--panel); border: 1px solid var(--line);
}
.promise-icon {
    display: inline-grid; place-items: center; width: 52px; height: 52px; border-radius: 14px; margin-bottom: 18px;
    background: linear-gradient(135deg, rgba(34, 211, 238, .2), rgba(139, 92, 246, .25));
    color: var(--cyan); font-size: 1.3rem;
}
.promise h3 { font-size: 1.3rem; margin-bottom: 10px; }
.promise p { color: var(--muted); margin: 0; }

.model-strip { display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); gap: 16px; }
.model-chip {
    display: block; text-decoration: none; border-radius: var(--radius-sm); overflow: hidden;
    border: 1px solid var(--line); background: var(--panel-solid);
    transition: transform .25s, border-color .25s;
}
.model-chip:hover { transform: translateY(-4px); border-color: var(--cyan); }
.model-chip-shot { display: block; aspect-ratio: 4 / 3; overflow: hidden; }
.model-chip-shot img { width: 100%; height: 100%; object-fit: cover; object-position: top; transition: transform .5s; }
.model-chip:hover img { transform: scale(1.06); }
.model-chip-body { display: grid; padding: 12px 14px; }
.model-chip-body strong { font-family: var(--font-display); font-size: 1.05rem; }
.model-chip-body span { font-family: var(--font-mono); font-size: .66rem; letter-spacing: .06em; text-transform: uppercase; color: var(--dim); }

.feature-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.feature-grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.feature { background: var(--night); padding: 28px; transition: background-color .25s; }
.feature:hover { background: var(--night-2); }
.feature > i { font-size: 1.35rem; color: var(--cyan); margin-bottom: 14px; display: block; }
.feature h3 { font-size: 1.15rem; margin-bottom: 8px; }
.feature p { color: var(--muted); font-size: .97rem; margin: 0; }

.steps { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 24px; counter-reset: step; position: relative; }
.steps::before { content: ''; position: absolute; top: 26px; left: 12%; right: 12%; height: 2px; background: linear-gradient(90deg, var(--cyan), var(--violet), var(--magenta)); opacity: .5; }
.step { position: relative; text-align: center; }
.step-n {
    position: relative; display: inline-grid; place-items: center; width: 54px; height: 54px; border-radius: 50%;
    background: var(--night); border: 2px solid var(--cyan); margin-bottom: 18px;
    font-family: var(--font-mono); font-weight: 700; color: var(--cyan);
    box-shadow: 0 0 24px -4px rgba(34, 211, 238, .7);
}
.step h3 { font-size: 1.2rem; margin-bottom: 8px; }
.step p { color: var(--muted); font-size: .97rem; }

.resale-band {
    display: grid; grid-template-columns: 1.1fr 1fr; gap: 48px; align-items: center;
    padding: 56px; border-radius: 28px;
    background:
        radial-gradient(60% 80% at 100% 0%, rgba(217, 70, 239, .28), transparent 70%),
        radial-gradient(60% 80% at 0% 100%, rgba(34, 211, 238, .18), transparent 70%),
        var(--night-2);
    border: 1px solid var(--line-strong);
}
.resale-band h2 { margin-bottom: 18px; }
.resale-band p { color: var(--muted); }
.resale-points { list-style: none; padding: 0; margin: 0; display: grid; gap: 14px; }
.resale-points li { display: flex; gap: 16px; padding: 18px 20px; border-radius: 14px; background: rgba(5, 8, 38, .55); border: 1px solid var(--line); }
.resale-points i { color: var(--cyan); font-size: 1.2rem; margin-top: 3px; width: 22px; text-align: center; }
.resale-points span { color: var(--muted); }
.resale-points strong { display: block; color: var(--ink); font-family: var(--font-display); font-size: 1.05rem; }

.faq { display: grid; gap: 12px; }
.faq details { border: 1px solid var(--line); border-radius: 14px; background: var(--panel); }
.faq details[open] { border-color: var(--line-strong); }
.faq summary {
    list-style: none; cursor: pointer; padding: 20px 24px;
    display: flex; justify-content: space-between; gap: 16px; align-items: center;
    font-family: var(--font-display); font-weight: 600; font-size: 1.1rem;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary i { color: var(--cyan); transition: transform .25s; }
.faq details[open] summary i { transform: rotate(45deg); }
.faq details p { padding: 0 24px 22px; margin: 0; color: var(--muted); }

.cta-band { padding: 40px 0 110px; }
.cta-inner {
    position: relative; overflow: hidden; text-align: center;
    padding: 72px 32px; border-radius: 30px;
    background: linear-gradient(120deg, #0c1a6b 0%, #2a1478 55%, #4a1173 100%);
    border: 1px solid var(--line-strong);
}
.cta-eq { position: absolute; inset: auto 0 0; height: 60%; display: flex; gap: 6px; align-items: flex-end; opacity: .22; padding: 0 20px; pointer-events: none; }
.cta-inner > *:not(.cta-eq) { position: relative; }
.cta-inner h2 { font-size: clamp(1.9rem, 3.6vw, 2.9rem); font-weight: 800; max-width: 820px; margin: 0 auto 14px; }
.cta-inner p { color: #c9cff5; max-width: 640px; margin: 0 auto 30px; font-size: 1.1rem; }
.cta-actions { display: flex; flex-wrap: wrap; gap: 14px; justify-content: center; }

/* ---------- Páginas internas ---------- */
.page-head { position: relative; padding: calc(var(--header-h) + 72px) 0 64px; text-align: center; overflow: hidden; isolation: isolate; }
.page-head-glow {
    position: absolute; inset: 0; z-index: -1;
    background:
        radial-gradient(50% 70% at 20% 0%, rgba(37, 99, 235, .35), transparent 70%),
        radial-gradient(45% 70% at 85% 10%, rgba(217, 70, 239, .25), transparent 70%);
}
.page-head-glow::after {
    content: ''; position: absolute; left: 0; right: 0; bottom: 0; height: 1px;
    background: linear-gradient(90deg, transparent, var(--cyan), var(--violet), transparent); opacity: .6;
}
.page-head h1 { font-size: clamp(2.4rem, 5vw, 4rem); font-weight: 800; max-width: 900px; margin: 0 auto 18px; }
.page-head .lead { margin: 0 auto; }
.page-404 .hero-actions { justify-content: center; margin-top: 30px; }
.page-404 { min-height: 70vh; display: grid; align-content: center; }

.model-index { position: sticky; top: 70px; z-index: 50; background: rgba(5, 8, 38, .88); backdrop-filter: blur(12px); border-block: 1px solid var(--line); }
.model-index .container { display: flex; gap: 6px; overflow-x: auto; padding: 10px 0; scrollbar-width: none; justify-content: center; }
.model-index a { flex-shrink: 0; text-decoration: none; padding: 7px 16px; border-radius: 999px; color: var(--muted); font-weight: 600; font-size: .95rem; }
.model-index a:hover { color: var(--ink); background: rgba(255,255,255,.06); }

.model-row { display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr); gap: 64px; align-items: center; padding: 56px 0; scroll-margin-top: 140px; }
.model-row + .model-row { border-top: 1px solid var(--line); }
.model-row.is-flipped .model-visual { order: 2; }
.model-visual { position: relative; padding: 0 40px 40px 0; }
.model-row.is-flipped .model-visual { padding: 0 0 40px 40px; }
.browser { border-radius: 14px; overflow: hidden; border: 1px solid var(--line-strong); background: #0a0e30; box-shadow: var(--shadow), 0 0 60px -25px rgba(37, 99, 235, .7); }
.browser-bar { display: flex; align-items: center; gap: 7px; padding: 10px 14px; background: #121845; border-bottom: 1px solid var(--line); }
.browser-bar i { width: 10px; height: 10px; border-radius: 50%; background: #ff5f57; }
.browser-bar i:nth-child(2) { background: #febc2e; }
.browser-bar i:nth-child(3) { background: #28c840; }
.browser-bar span { margin-left: 12px; flex: 1; padding: 3px 12px; border-radius: 6px; background: rgba(255,255,255,.06); font-family: var(--font-mono); font-size: .7rem; color: var(--dim); }
.browser-view { --view-h: 420px; height: var(--view-h); overflow: hidden; }
.browser-view img { width: 100%; height: auto; transition: transform 7s cubic-bezier(.45, 0, .55, 1); }
.browser:hover .browser-view img, .browser:focus .browser-view img { transform: translateY(calc(-100% + var(--view-h))); }
.phone-sm { width: 22%; border-radius: 22px; padding: 6px; }
.phone-sm .phone-screen { border-radius: 17px; }
.model-row.is-flipped .phone-sm { right: auto; left: 0; }
.model-info h2 { margin-bottom: 8px; }
.model-tagline { font-family: var(--font-display); font-size: 1.25rem; color: var(--cyan); }
.model-info > p:not(.eyebrow):not(.model-tagline) { color: var(--muted); }
.tags { list-style: none; padding: 0; margin: 20px 0 0; display: flex; flex-wrap: wrap; gap: 8px; }
.tags li { padding: 6px 14px; border-radius: 999px; border: 1px solid var(--line-strong); font-size: .85rem; color: var(--muted); }

.feature-group { scroll-margin-top: 130px; padding: 72px 0; }
.feature-group + .feature-group { border-top: 1px solid var(--line); }
.feature-group-grid { display: grid; grid-template-columns: minmax(0, .8fr) minmax(0, 2fr); gap: 56px; align-items: start; }
.feature-group-head { position: sticky; top: 150px; }
.feature-group-head p:last-child { color: var(--muted); font-size: 1.1rem; margin-top: 14px; }

.split { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 64px; align-items: center; }
.split p { color: var(--muted); }
.split h2 { margin-bottom: 18px; }
.spec-list { list-style: none; padding: 0; margin: 0; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.spec-list li { display: flex; justify-content: space-between; gap: 20px; padding: 18px 24px; background: var(--panel); }
.spec-list li + li { border-top: 1px solid var(--line); }
.spec-list span { font-family: var(--font-mono); font-size: .76rem; letter-spacing: .08em; text-transform: uppercase; color: var(--dim); padding-top: 3px; }
.spec-list strong { text-align: right; font-weight: 600; }

.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: var(--radius); }
.compare { width: 100%; border-collapse: collapse; min-width: 640px; }
.compare th, .compare td { padding: 16px 22px; text-align: center; border-bottom: 1px solid var(--line); }
.compare thead th { font-family: var(--font-display); font-size: 1.15rem; background: var(--night-2); }
.compare tbody th { text-align: left; font-weight: 500; color: var(--muted); }
.compare tr:last-child > * { border-bottom: 0; }
.compare td i { color: var(--cyan); }
.compare .is-featured { background: rgba(139, 92, 246, .1); }
.compare td strong { font-family: var(--font-display); font-size: 1.3rem; }

.ip-diagram { display: grid; gap: 16px; padding: 30px; border-radius: var(--radius); background: var(--panel); border: 1px solid var(--line); }
.ip-row { display: grid; grid-template-columns: 110px 1fr; align-items: center; gap: 16px; }
.ip-row-name { font-family: var(--font-display); font-weight: 700; }
.ip-row-servers { display: flex; flex-wrap: wrap; gap: 6px; color: var(--cyan); font-size: .95rem; }
.ip-row:last-child .ip-row-servers { color: var(--magenta); }

.channels { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 24px; }
.channel { display: block; padding: 32px; border-radius: var(--radius); background: var(--panel); border: 1px solid var(--line); text-decoration: none; transition: border-color .25s, transform .25s; }
.channel:hover { border-color: var(--cyan); transform: translateY(-3px); }
.channel > i { font-size: 1.8rem; color: var(--cyan); margin-bottom: 16px; display: block; }
.channel h2 { font-size: 1.35rem; margin-bottom: 8px; }
.channel p { color: var(--muted); }
.hours { text-align: center; color: var(--muted); margin-top: 28px; }
.hours i { color: var(--cyan); margin-right: 6px; }

.contact-grid { display: grid; grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr); gap: 40px; align-items: start; }
.contact-form { display: grid; gap: 18px; padding: 36px; border-radius: var(--radius); background: var(--panel); border: 1px solid var(--line); }
.contact-form label, .plan-pick legend { display: grid; gap: 8px; font-weight: 600; font-size: .95rem; }
.form-row { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }
.optional { color: var(--dim); font-weight: 400; }
.contact-form input[type="text"], .contact-form input[type="email"], .contact-form input[type="tel"], .contact-form select, .contact-form textarea {
    width: 100%; padding: 13px 15px; border-radius: 12px;
    border: 1px solid var(--line-strong); background: rgba(5, 8, 38, .7); color: var(--ink);
    font: inherit; font-weight: 400;
}
.contact-form select option { background: var(--night-2); }
.contact-form input:focus, .contact-form select:focus, .contact-form textarea:focus { outline: none; border-color: var(--cyan); box-shadow: 0 0 0 3px rgba(34, 211, 238, .2); }
.contact-form textarea { resize: vertical; }
.contact-form .btn { justify-self: start; }
.plan-pick { border: 0; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 10px; }
.plan-pick legend { margin-bottom: 8px; }
.plan-option { display: block !important; cursor: pointer; }
.plan-option input { position: absolute; opacity: 0; }
.plan-option span { display: block; padding: 12px 14px; border-radius: 12px; border: 1px solid var(--line-strong); color: var(--muted); font-weight: 400; transition: border-color .2s, background-color .2s; }
.plan-option strong { display: block; color: var(--ink); font-family: var(--font-display); }
.plan-option input:checked + span { border-color: var(--cyan); background: rgba(34, 211, 238, .1); }
.plan-option input:focus-visible + span { outline: 3px solid var(--cyan); outline-offset: 2px; }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.alert { display: flex; gap: 12px; padding: 14px 18px; border-radius: 12px; }
.alert ul { margin: 0; padding-left: 18px; }
.alert-ok { background: rgba(34, 197, 94, .14); border: 1px solid rgba(34, 197, 94, .5); color: #bbf7d0; }
.alert-error { background: rgba(239, 68, 68, .12); border: 1px solid rgba(239, 68, 68, .5); color: #fecaca; }
.contact-side { display: grid; gap: 24px; }
.contact-card { padding: 30px; border-radius: var(--radius); background: var(--panel); border: 1px solid var(--line); display: grid; gap: 12px; }
.contact-card h2 { font-size: 1.3rem; margin-bottom: 4px; }
.contact-card a { color: var(--ink); text-decoration: none; display: flex; gap: 10px; align-items: center; }
.contact-card a:hover { color: var(--cyan); }
.contact-card i { color: var(--cyan); width: 20px; text-align: center; }
.contact-card p { color: var(--muted); margin: 0; }
.contact-card .btn { justify-self: start; }
.contact-card .btn i { color: inherit; width: auto; }
.contact-card-accent { background: linear-gradient(140deg, rgba(37, 99, 235, .3), rgba(139, 92, 246, .3)); border-color: var(--line-strong); }

.prose h2 { font-size: 1.45rem; margin: 36px 0 12px; }
.prose p { color: var(--muted); }
.prose a { color: var(--cyan); }
.prose-date { font-family: var(--font-mono); font-size: .8rem; color: var(--dim) !important; }

/* ---------- Rodapé ---------- */
.site-footer { position: relative; padding: 80px 0 0; background: #03051c; border-top: 1px solid var(--line); overflow: hidden; }
.footer-waves { position: absolute; inset: 0 0 auto; height: 2px; background: var(--grad-wave); opacity: .8; }
.footer-grid { display: grid; grid-template-columns: 1.6fr repeat(3, 1fr); gap: 48px; padding-bottom: 56px; }
.footer-brand p { color: var(--muted); margin-top: 20px; max-width: 360px; }
.footer-col { display: grid; align-content: start; gap: 12px; }
.footer-col h2 { font-family: var(--font-mono); font-size: .76rem; letter-spacing: .14em; text-transform: uppercase; color: var(--cyan); margin-bottom: 6px; }
.footer-col a, .footer-col span { color: var(--muted); text-decoration: none; font-size: .97rem; }
.footer-col a:hover { color: var(--ink); }
.footer-col i { margin-right: 6px; font-size: .85em; }
.footer-bottom { display: flex; justify-content: space-between; gap: 20px; flex-wrap: wrap; padding: 24px 0 30px; border-top: 1px solid var(--line); color: var(--dim); font-size: .9rem; }
.footer-bottom p { margin: 0; }
.footer-bottom nav { display: flex; gap: 22px; }
.footer-bottom a { color: var(--dim); text-decoration: none; }
.footer-bottom a:hover { color: var(--ink); }

.wa-float {
    position: fixed; right: 22px; bottom: 22px; z-index: 90;
    width: 58px; height: 58px; border-radius: 50%; display: grid; place-items: center;
    background: var(--green); color: #fff; font-size: 1.8rem; text-decoration: none;
    box-shadow: 0 14px 30px -10px rgba(34, 197, 94, .8);
    transition: transform .2s;
}
.wa-float:hover { transform: scale(1.08); }

/* ---------- Revelação ao rolar ---------- */
.js .reveal { opacity: 0; transform: translateY(24px); transition: opacity .7s ease, transform .7s ease; }
.js .reveal.is-visible { opacity: 1; transform: none; }

/* ---------- Responsivo ---------- */
@media (max-width: 1180px) {
    .main-nav { gap: 18px; }
    .main-nav ul a { padding: 8px 9px; }
    .brand-tagline { display: none; }
}

@media (max-width: 1080px) {
    .nav-toggle { display: inline-flex; }
    .main-nav {
        position: fixed; inset: 0; z-index: -1;
        flex-direction: column; justify-content: center; gap: 32px;
        background: rgba(5, 8, 38, .97); backdrop-filter: blur(16px);
        opacity: 0; visibility: hidden; transition: opacity .3s, visibility .3s;
    }
    .nav-open .main-nav { opacity: 1; visibility: visible; }
    /* backdrop-filter num ancestral prende elementos fixed dentro dele: tira ao abrir o menu. */
    .nav-open .site-header { backdrop-filter: none; -webkit-backdrop-filter: none; background: transparent; box-shadow: none; }
    .main-nav ul { flex-direction: column; align-items: center; gap: 4px; }
    .main-nav ul a { font-family: var(--font-display); font-size: 1.6rem; font-weight: 600; padding: 8px 20px; }
    .nav-actions { flex-direction: column; width: min(320px, 100% - 48px); }
    .nav-open { overflow: hidden; }
    .brand-tagline { display: block; }

    .hero-grid { grid-template-columns: 1fr; gap: 40px; }
    .hero-copy { text-align: center; }
    .hero-copy .lead { margin-inline: auto; }
    .checklist { justify-content: center; text-align: left; width: fit-content; margin-inline: auto; }
    .hero-actions { justify-content: center; }
    .showcase { max-width: 720px; margin: 0 auto; width: 100%; }

    .model-strip { grid-template-columns: repeat(3, minmax(0, 1fr)); }
    .promise-grid-4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .feature-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .resale-band, .split { grid-template-columns: 1fr; gap: 36px; }
    .model-row { grid-template-columns: 1fr; gap: 32px; }
    .model-row.is-flipped .model-visual { order: 0; }
    .feature-group-grid { grid-template-columns: 1fr; gap: 28px; }
    .feature-group-head { position: static; }
    .footer-grid { grid-template-columns: 1fr 1fr; }
    .contact-grid { grid-template-columns: 1fr; }
}

@media (max-width: 760px) {
    body { font-size: 16px; }
    .section { padding: 72px 0; }
    .plans, .promise-grid, .promise-grid-4, .channels { grid-template-columns: 1fr; }
    .plans { gap: 30px; }
    .feature-grid, .feature-grid-2 { grid-template-columns: 1fr; }
    .steps { grid-template-columns: 1fr 1fr; row-gap: 36px; }
    .steps::before { display: none; }
    .model-strip { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .section-head-split { flex-direction: column; align-items: flex-start; }
    .resale-band { padding: 32px 22px; border-radius: 22px; }
    .cta-inner { padding: 52px 22px; }
    .showcase-stage { padding: 0 40px 30px 0; }
    .dial-scale { grid-template-columns: repeat(3, 1fr); row-gap: 6px; }
    .dial-needle { display: none; }
    .dial-scale button[aria-selected="true"] .dial-name { color: var(--cyan); }
    .browser-view { --view-h: 300px; }
    .model-visual, .model-row.is-flipped .model-visual { padding: 0 24px 30px 0; }
    .model-row.is-flipped .phone-sm { left: auto; right: 0; }
    .form-row, .plan-pick { grid-template-columns: 1fr; }
    .contact-form { padding: 24px; }
    .footer-grid { grid-template-columns: 1fr; gap: 32px; }
    .brand-word { font-size: 1.5rem; }
    .brand-mark { width: 40px; height: 40px; }
}

@media (max-width: 420px) {
    .steps { grid-template-columns: 1fr; }
    .hero-actions .btn { width: 100%; }
}

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { animation-duration: .001ms !important; animation-iteration-count: 1 !important; transition-duration: .001ms !important; scroll-behavior: auto !important; }
    .wave { stroke-dashoffset: 0; }
    .js .reveal { opacity: 1; transform: none; }
}