:root {
    --azul-principal: #1064e9;
    --azul-escuro: #075fe8;
    --azul-claro: #e8f4ff;
    --azul-secundario: #1672f4;
    --azul-hover: #3898ff;
    --amarelo-paypal: #ffc439;
    --amarelo-hover: #f2ba24;
    --verde: #198754;
    --texto-principal: #17365d;
    --texto-secundario: #5b718b;
    --fundo: #f4f9ff;
    --branco: #ffffff;
    --borda: #d8ecff;
    --sombra: 0 10px 30px rgba(16, 100, 233, 0.10);
    --raio: 16px;
}

* {
    box-sizing: border-box;
}

html {
    min-height: 100%;
    scroll-behavior: smooth;
}

body {
    min-height: 100vh;
    margin: 0;
    padding: 40px 24px;
    background: linear-gradient(
        -45deg,
        #eef7ff,
        #d8ecff,
        #f4f9ff,
        #cfe7ff,
        #e8f4ff,
        #d7ebff
    );
    background-size: 400% 400%;
    animation: fundoAzul 18s ease infinite;
    color: var(--texto-principal);
    font-family: Arial, Helvetica, sans-serif;
    line-height: 1.6;
}

@keyframes fundoAzul {
    0% {
        background-position: 0% 50%;
    }

    50% {
        background-position: 100% 50%;
    }

    100% {
        background-position: 0% 50%;
    }
}

button {
    font: inherit;
}

.pagina-upgrade {
    position: relative;
    width: min(1200px, 100%);
    margin: 0 auto;
    padding: 36px;
    background: rgba(255, 255, 255, 0.96);
    border: 1px solid rgba(216, 236, 255, 0.9);
    border-radius: 22px;
    box-shadow: var(--sombra);
}

.btn-fechar {
    position: absolute;
    top: 18px;
    right: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 42px;
    height: 42px;
    padding: 0;
    border: none;
    border-radius: 50%;
    background: #e8f4ff;
    color: #17365d;
    font-size: 28px;
    line-height: 1;
    cursor: pointer;
    transition: background-color 0.2s ease, color 0.2s ease, transform 0.2s ease;
}

.btn-fechar:hover {
    background: #d8ecff;
    color: #075fe8;
    transform: rotate(90deg);
}

.btn-fechar:focus-visible,
.btn-upgrade:focus-visible,
.btn-plano-atual:focus-visible {
    outline: 3px solid var(--azul-principal);
    outline-offset: 3px;
}

.cabecalho-pagina {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 22px;
    margin-bottom: 38px;
    padding: 12px 48px 30px;
    border-bottom: 1px solid var(--borda);
    text-align: left;
}

.logo-pagina {
    display: block;
    width: 82px;
    height: 82px;
    flex-shrink: 0;
    object-fit: contain;
}

.cabecalho-titulo {
    max-width: 650px;
}

.cabecalho-titulo h1 {
    margin: 0 0 8px;
    color: var(--azul-principal);
    font-size: clamp(28px, 4vw, 38px);
    font-weight: 800;
    line-height: 1.2;
}

.cabecalho-titulo p {
    margin: 0;
    color: var(--texto-secundario);
    font-size: 16px;
}

.planos {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    align-items: stretch;
    gap: 24px;
}

.plano {
    display: flex;
    flex-direction: column;
    min-width: 0;
    padding: 26px 22px;
    background: var(--branco);
    border: 1px solid var(--borda);
    border-radius: var(--raio);
    box-shadow: 0 4px 16px rgba(16, 100, 233, 0.05);
    transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.plano:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 28px rgba(16, 100, 233, 0.12);
    border-color: #a9d2ff;
}

.plano.gratis {
    border-top: 5px solid #9bbce0;
}

.plano.sigma {
    border-top: 5px solid var(--azul-principal);
}

.plano.omega {
    border-top: 5px solid #6a9ee8;
}

.titulo-plano {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 16px;
}

.titulo-plano h2 {
    margin: 0;
    color: var(--texto-principal);
    font-size: 22px;
    font-weight: 800;
    line-height: 1.35;
}

.etiqueta {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    padding: 5px 10px;
    border-radius: 20px;
    background: #eef4fb;
    color: #47627f;
    font-size: 12px;
    font-weight: 700;
    white-space: nowrap;
}

.etiqueta.destaque {
    background: var(--azul-claro);
    color: var(--azul-principal);
}

.plano.omega .etiqueta.destaque {
    background: #e0edff;
    color: #075fe8;
}

.descricao {
    min-height: 72px;
    margin: 0 0 18px;
    color: var(--texto-secundario);
    font-size: 14px;
    line-height: 1.7;
}

.plano ul {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin: 0 0 24px;
    padding: 0;
    list-style: none;
}

.plano ul li {
    position: relative;
    padding-left: 27px;
    color: #334e6d;
    font-size: 14px;
    line-height: 1.55;
    overflow-wrap: anywhere;
}

.plano ul li::before {
    position: absolute;
    top: 0;
    left: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 19px;
    height: 19px;
    border-radius: 50%;
    background: #e0edff;
    color: var(--azul-principal);
    content: "✓";
    font-size: 12px;
    font-weight: 800;
}

.limites {
    margin: auto 0 20px;
    padding: 12px;
    border-radius: 10px;
    background: #f4f9ff;
    color: var(--texto-secundario);
    font-size: 12px;
    line-height: 1.6;
}

.preco {
    display: flex;
    align-items: baseline;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: auto;
    margin-bottom: 20px;
    padding-top: 18px;
    border-top: 1px solid var(--borda);
}

.preco strong {
    color: var(--azul-principal);
    font-size: 29px;
    font-weight: 800;
    line-height: 1.3;
}

.preco span {
    color: var(--texto-secundario);
    font-size: 14px;
}

.btn-upgrade {
    display: block;
    position: relative;
    z-index: 1;
    width: 100%;
    min-height: 48px;
    margin-top: auto;
    padding: 12px 16px;
    border: 1px solid #e5b800;
    border-radius: 10px;
    background: var(--amarelo-paypal);
    color: #111111;
    font-size: 15px;
    font-weight: 800;
    text-align: center;
    cursor: pointer;
    pointer-events: auto;
    transition: background-color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
}

.btn-upgrade:hover:not(:disabled) {
    background: var(--amarelo-hover);
    transform: translateY(-2px);
    box-shadow: 0 5px 12px rgba(242, 186, 36, 0.25);
}

.btn-upgrade:active:not(:disabled) {
    transform: translateY(0);
}

.btn-upgrade:disabled,
.btn-plano-atual:disabled {
    background: #d5e2f0;
    color: #5b718b;
    border-color: transparent;
    cursor: not-allowed;
    opacity: 0.85;
    transform: none;
    box-shadow: none;
}

.btn-plano-atual {
    display: block;
    width: 100%;
    min-height: 48px;
    margin-top: auto;
    padding: 12px 16px;
    border: none;
    border-radius: 10px;
    background: var(--azul-principal);
    color: var(--branco);
    font-size: 15px;
    font-weight: 800;
    text-align: center;
    cursor: pointer;
    transition: background-color 0.2s ease, transform 0.2s ease;
}

.btn-plano-atual:hover:not(:disabled) {
    background: var(--azul-escuro);
    transform: translateY(-2px);
}

.mensagem-upgrade {
    display: none;
    margin: 26px 0 0;
    padding: 16px 18px;
    border: 1px solid #b9d9ff;
    border-radius: 12px;
    background: #eef7ff;
    color: #17386f;
    font-size: 14px;
    line-height: 1.6;
    overflow-wrap: anywhere;
}

.mensagem-upgrade.visivel {
    display: block;
}

.mensagem-upgrade:empty {
    display: none;
}

@media (max-width: 1050px) {
    body {
        padding: 28px 18px;
    }

    .pagina-upgrade {
        padding: 28px;
    }

    .planos {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 20px;
    }

    .plano.gratis {
        grid-column: 1 / -1;
    }

    .plano.gratis .descricao {
        min-height: 0;
    }
}

@media (max-width: 680px) {
    body {
        padding: 12px;
    }

    .pagina-upgrade {
        padding: 22px 16px;
        border-radius: 16px;
    }

    .btn-fechar {
        top: 12px;
        right: 12px;
        width: 38px;
        height: 38px;
        font-size: 25px;
    }

    .cabecalho-pagina {
        flex-direction: column;
        gap: 12px;
        margin-bottom: 24px;
        padding: 20px 8px 24px;
        text-align: center;
    }

    .logo-pagina {
        width: 70px;
        height: 70px;
    }

    .cabecalho-titulo h1 {
        font-size: 27px;
    }

    .cabecalho-titulo p {
        font-size: 14px;
    }

    .planos {
        grid-template-columns: minmax(0, 1fr);
        gap: 18px;
    }

    .plano.gratis {
        grid-column: auto;
    }

    .plano {
        padding: 22px 18px;
        border-radius: 14px;
    }

    .titulo-plano h2 {
        font-size: 21px;
    }

    .descricao {
        min-height: 0;
    }

    .plano ul {
        gap: 11px;
    }

    .preco strong {
        font-size: 27px;
    }

    .btn-upgrade,
    .btn-plano-atual {
        min-height: 50px;
        font-size: 15px;
    }

    .mensagem-upgrade {
        margin-top: 20px;
        padding: 14px;
    }
}

@media (max-width: 360px) {
    .pagina-upgrade {
        padding: 18px 12px;
    }

    .plano {
        padding: 18px 14px;
    }

    .titulo-plano {
        flex-wrap: wrap;
    }

    .titulo-plano h2 {
        font-size: 19px;
    }

    .etiqueta {
        font-size: 11px;
    }

    .preco strong {
        font-size: 25px;
    }
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        scroll-behavior: auto !important;
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}