:root {
    --bg: #e6f3fb;
    --bg-2: #d5ecf7;
    --navy: #0c2a3d;
    --ink: #143044;
    --muted: #4a6576;
    --cyan: #00b4c8;
    --cyan-escuro: #0094a6;
    --verde: #2bb36a;
    --branco: #ffffff;
    --linha: rgba(12, 42, 61, 0.1);
    --sombra: 0 18px 50px rgba(12, 62, 88, 0.12);
    --fonte: "Segoe UI", "Helvetica Neue", Arial, sans-serif;
}

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

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    min-height: 100vh;
    font-family: var(--fonte);
    color: var(--ink);
    background: var(--bg);
    line-height: 1.6;
}

.atmosfera {
    position: fixed;
    inset: 0;
    z-index: -1;
    pointer-events: none;
    background:
        radial-gradient(900px 520px at 8% -10%, rgba(0, 180, 200, 0.28), transparent 60%),
        radial-gradient(720px 480px at 100% 8%, rgba(43, 179, 106, 0.16), transparent 55%),
        radial-gradient(640px 400px at 70% 100%, rgba(0, 148, 166, 0.12), transparent 50%),
        linear-gradient(180deg, #eef8fd 0%, var(--bg) 38%, #dff0f8 100%);
}

.skip-link {
    position: absolute;
    left: 1rem;
    top: -3rem;
    background: var(--navy);
    color: #fff;
    padding: 0.5rem 0.8rem;
    z-index: 20;
}

.skip-link:focus {
    top: 0.6rem;
}

.topo {
    position: sticky;
    top: 0;
    z-index: 10;
    backdrop-filter: blur(14px);
    background: rgba(230, 243, 251, 0.82);
    border-bottom: 1px solid var(--linha);
}

.topo-inner {
    max-width: 1120px;
    margin: 0 auto;
    padding: 0.7rem 1.25rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
}

.marca {
    display: flex;
    align-items: center;
    gap: 0.7rem;
    text-decoration: none;
    color: var(--cyan-escuro);
}

.marca-icone {
    width: 34px;
    height: 48px;
    object-fit: contain;
}

.marca-texto {
    display: flex;
    flex-direction: column;
    line-height: 1.05;
}

.marca-linha {
    font-size: 0.68rem;
    letter-spacing: 0.14em;
    font-weight: 700;
}

.marca-nome {
    font-size: 1.25rem;
    font-weight: 800;
    letter-spacing: 0.06em;
}

.nav {
    display: flex;
    gap: 1.25rem;
}

.nav a {
    color: var(--ink);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.95rem;
}

.nav a[aria-current="page"],
.nav a:hover {
    color: var(--cyan-escuro);
}

.nav-toggle {
    display: none;
    border: 1px solid var(--linha);
    background: var(--branco);
    color: var(--navy);
    border-radius: 8px;
    padding: 0.4rem 0.7rem;
    font-weight: 700;
}

.conteudo {
    max-width: 1120px;
    margin: 0 auto;
    padding: 2rem 1.25rem 4rem;
}

.hero {
    display: grid;
    grid-template-columns: 1.15fr 0.85fr;
    gap: 2rem;
    align-items: center;
    min-height: 62vh;
    padding: 1rem 0 2.5rem;
}

.olho {
    margin: 0 0 0.6rem;
    color: var(--cyan-escuro);
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    font-size: 0.78rem;
}

h1 {
    margin: 0 0 1rem;
    font-size: clamp(2.1rem, 5vw, 3.6rem);
    line-height: 1.08;
    color: var(--navy);
    letter-spacing: -0.03em;
}

h2 {
    margin: 0 0 0.8rem;
    color: var(--navy);
    font-size: 1.55rem;
}

.hero-lead {
    font-size: 1.12rem;
    color: var(--muted);
    max-width: 38rem;
}

.hero-visual {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 320px;
}

.hero-orbe {
    position: absolute;
    width: 380px;
    height: 380px;
    border-radius: 50%;
    background:
        radial-gradient(circle at 30% 30%, rgba(255, 255, 255, 0.7), transparent 40%),
        radial-gradient(circle at 50% 50%, rgba(0, 180, 200, 0.45), rgba(43, 179, 106, 0.2) 62%, transparent 70%);
    filter: blur(2px);
}

.hero-visual img {
    position: relative;
    width: min(100%, 460px);
    height: auto;
    filter: drop-shadow(0 26px 40px rgba(8, 60, 84, 0.22));
    animation: flutua 7s ease-in-out infinite;
}

@keyframes flutua {
    0%, 100% { transform: translateY(-6px); }
    50% { transform: translateY(10px); }
}

@media (prefers-reduced-motion: reduce) {
    .hero-visual img {
        animation: none;
    }
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: 0;
    cursor: pointer;
    text-decoration: none;
    font-weight: 700;
    font-size: 1rem;
    border-radius: 999px;
    padding: 0.85rem 1.4rem;
}

.btn-primario {
    background: linear-gradient(135deg, var(--cyan) 0%, var(--cyan-escuro) 55%, #1f9d58 140%);
    color: #fff;
    box-shadow: 0 10px 24px rgba(0, 148, 166, 0.28);
}

.btn-primario:hover {
    transform: translateY(-1px);
}

.btn-texto {
    background: transparent;
    color: var(--navy);
}

.intro-bloco {
    max-width: 40rem;
    margin: 0 0 2.5rem;
    color: var(--muted);
}

.lista-cats {
    display: grid;
    gap: 2.2rem;
}

.cat-bloco h2 {
    font-size: 0.82rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--cyan-escuro);
}

.lista-calcs {
    list-style: none;
    margin: 0;
    padding: 0;
    display: grid;
    gap: 0.7rem;
}

.lista-calcs a {
    display: grid;
    gap: 0.2rem;
    padding: 1rem 1.1rem;
    text-decoration: none;
    color: inherit;
    background: rgba(255, 255, 255, 0.72);
    border: 1px solid transparent;
    border-left: 4px solid var(--cyan);
    box-shadow: var(--sombra);
}

.lista-calcs li:nth-child(even) a {
    border-left-color: var(--verde);
}

.lista-calcs a:hover {
    border-color: rgba(0, 180, 200, 0.25);
    transform: translateX(4px);
}

.lista-nome {
    font-weight: 800;
    color: var(--navy);
    font-size: 1.08rem;
}

.lista-resumo {
    color: var(--muted);
    font-size: 0.95rem;
}

.migalha {
    font-size: 0.88rem;
    color: var(--muted);
    margin-bottom: 1rem;
}

.migalha a {
    color: var(--cyan-escuro);
}

.pagina-cabeca {
    max-width: 40rem;
    margin-bottom: 1.8rem;
}

.pagina-404 {
    min-height: 46vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.calc-layout {
    display: grid;
    grid-template-columns: minmax(0, 420px) minmax(0, 1fr);
    gap: 1.4rem;
    align-items: start;
    margin-bottom: 2.5rem;
}

.painel-calc,
.painel-resultado {
    background: rgba(255, 255, 255, 0.8);
    border-radius: 20px 8px 20px 8px;
    box-shadow: var(--sombra);
    padding: 1.3rem 1.3rem 1.5rem;
}

.painel-resultado {
    background:
        linear-gradient(180deg, rgba(255, 255, 255, 0.92), rgba(232, 248, 244, 0.9));
    border-top: 5px solid var(--verde);
}

.campo {
    display: grid;
    gap: 0.35rem;
    margin-bottom: 0.9rem;
}

.campo label {
    font-weight: 700;
    font-size: 0.92rem;
}

.campo input,
.campo select,
.campo textarea {
    width: 100%;
    border: 1px solid #c5d8e4;
    border-radius: 10px;
    padding: 0.7rem 0.8rem;
    font: inherit;
    color: var(--navy);
    background: #f7fcff;
}

.campo input:focus,
.campo select:focus,
.campo textarea:focus {
    outline: 2px solid rgba(0, 180, 200, 0.45);
    border-color: var(--cyan);
}

.hp {
    position: absolute;
    left: -9999px;
    height: 0;
    overflow: hidden;
}

.resultado-label {
    margin: 0;
    color: var(--muted);
}

.resultado-valor {
    margin: 0.2rem 0 1rem;
    font-size: clamp(1.8rem, 4vw, 2.6rem);
    font-weight: 800;
    color: var(--navy);
    letter-spacing: -0.03em;
}

.resultado-lista {
    margin: 0 0 1rem;
}

.resultado-lista div {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    padding: 0.45rem 0;
    border-bottom: 1px dashed var(--linha);
}

.resultado-lista dt {
    color: var(--muted);
}

.resultado-lista dd {
    margin: 0;
    font-weight: 700;
    text-align: right;
}

.resultado-texto {
    margin: 0;
    color: var(--ink);
}

.alerta {
    padding: 0.8rem 1rem;
    border-radius: 10px;
    margin-bottom: 1rem;
}

.alerta ul {
    margin: 0;
    padding-left: 1.1rem;
}

.alerta-erro {
    background: #ffe8e6;
    color: #7a1f1a;
}

.alerta-ok {
    background: #e4f8ec;
    color: #14532d;
}

.artigo {
    max-width: 42rem;
    background: rgba(255, 255, 255, 0.55);
    padding: 1.6rem 1.5rem 2rem;
    border-radius: 8px 22px 8px 22px;
}

.artigo-largo {
    max-width: 46rem;
}

.artigo p,
.artigo li {
    color: var(--ink);
}

.artigo a {
    color: var(--cyan-escuro);
}

.aviso-legal {
    font-size: 0.9rem;
    color: var(--muted);
}

.rodape {
    border-top: 1px solid var(--linha);
    background: rgba(255, 255, 255, 0.45);
}

.rodape-inner {
    max-width: 1120px;
    margin: 0 auto;
    padding: 2rem 1.25rem 2.4rem;
}

.rodape-marca {
    display: flex;
    gap: 0.9rem;
    align-items: flex-start;
    max-width: 36rem;
}

.rodape-marca img {
    width: 30px;
    height: 42px;
    object-fit: contain;
}

.rodape-marca p,
.rodape-copy {
    color: var(--muted);
    font-size: 0.92rem;
}

.rodape-nav {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem 1.3rem;
    margin: 1.2rem 0;
}

.rodape-nav a {
    color: var(--navy);
    font-weight: 600;
    text-decoration: none;
}

.rodape-nav a:hover {
    color: var(--cyan-escuro);
}

.cookie-banner {
    position: fixed;
    left: 1rem;
    right: 1rem;
    bottom: 1rem;
    max-width: 720px;
    margin: 0 auto;
    background: var(--navy);
    color: #e8f6fb;
    padding: 1rem 1.1rem;
    border-radius: 16px;
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.25);
    z-index: 30;
}

.cookie-banner a {
    color: #7fe3ef;
}

.cookie-acoes {
    display: flex;
    gap: 0.6rem;
    margin-top: 0.7rem;
}

@media (max-width: 860px) {
    .hero,
    .calc-layout {
        grid-template-columns: 1fr;
    }

    .hero {
        min-height: 0;
        padding-top: 0.4rem;
    }

    .hero-visual {
        min-height: 220px;
        order: -1;
    }

    .hero-visual img {
        width: min(72%, 260px);
    }

    .hero-orbe {
        width: 240px;
        height: 240px;
    }

    .nav-toggle {
        display: inline-flex;
    }

    .nav {
        display: none;
        position: absolute;
        top: 72px;
        right: 1.25rem;
        left: 1.25rem;
        flex-direction: column;
        padding: 0.8rem;
        background: #fff;
        box-shadow: var(--sombra);
        border-radius: 12px;
    }

    .nav.aberta {
        display: flex;
    }
}

@media (max-width: 520px) {
    .resultado-lista div {
        flex-direction: column;
        gap: 0.15rem;
    }

    .resultado-lista dd {
        text-align: left;
    }
}