/* ============================================================
   BASE — reset, tipografia, utilitários
   ============================================================ */

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

html {
    -webkit-text-size-adjust: 100%;
    -webkit-tap-highlight-color: transparent;
    scroll-behavior: smooth;
}

body {
    margin: 0;
    min-height: 100svh;
    background-color: var(--db-bg);
    color: var(--db-text);
    font-family: var(--db-font-body);
    font-size: 1rem;
    line-height: 1.65;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
    transition: background-color 0.35s var(--db-ease), color 0.35s var(--db-ease);
}

/* Halo ambiente — mesma assinatura do DevBook */
body::before {
    content: '';
    position: fixed;
    inset: 0;
    z-index: -1;
    pointer-events: none;
    background:
        radial-gradient(60rem 40rem at 78% -8%, rgba(124, 140, 255, 0.13), transparent 60%),
        radial-gradient(50rem 40rem at -5% 8%, rgba(56, 189, 248, 0.09), transparent 55%);
}

[data-theme="light"] body::before {
    background:
        radial-gradient(60rem 40rem at 78% -8%, rgba(79, 70, 229, 0.07), transparent 60%),
        radial-gradient(50rem 40rem at -5% 8%, rgba(2, 132, 199, 0.06), transparent 55%);
}

h1, h2, h3 {
    font-family: var(--db-font-display);
    font-weight: 600;
    line-height: 1.2;
    letter-spacing: -0.02em;
    margin: 0;
    color: var(--db-text);
}

p { margin: 0; }

a {
    color: var(--db-accent);
    text-decoration: none;
    transition: color 0.2s var(--db-ease);
}

a:hover { color: var(--db-accent-2); }

:focus-visible {
    outline: 2px solid var(--db-accent);
    outline-offset: 3px;
    border-radius: var(--db-r-sm);
}

::selection {
    background: rgba(124, 140, 255, 0.30);
    color: #fff;
}

[data-theme="light"] ::selection {
    background: rgba(79, 70, 229, 0.18);
    color: var(--db-text);
}

::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb {
    background: var(--db-scrollbar);
    border-radius: var(--db-r-full);
    border: 2px solid transparent;
    background-clip: content-box;
}
::-webkit-scrollbar-thumb:hover { background: var(--db-scrollbar-hover); background-clip: content-box; }

/* ----- Utilitários ------------------------------------------ */

/* O [hidden] do navegador vive na folha do agente de usuário, e
   QUALQUER regra de autor ganha dela — independente de
   especificidade. Como .result declara display:grid e .history
   declara padding em bloco, o hidden deles era simplesmente
   ignorado e um card vazio aparecia antes de gerar.

   Esta regra devolve ao atributo o poder que ele deveria ter.
   Sem o !important o problema volta, porque .result continua
   sendo uma regra de autor tão válida quanto esta. */
[hidden] {
    display: none !important;
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.mono {
    font-family: var(--db-font-mono);
    font-variant-ligatures: none;
}

/* Rótulo de seção — mesmo componente do DevBook */
.eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-family: var(--db-font-mono);
    font-size: 0.72rem;
    font-weight: 500;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--db-accent);
}

.eyebrow::before {
    content: '';
    width: 1.4rem;
    height: 1px;
    background: var(--db-accent-line);
}

/* Entrada de conteúdo */
@keyframes rise {
    from { opacity: 0; transform: translateY(12px); }
    to   { opacity: 1; transform: none; }
}

.rise { animation: rise 0.5s var(--db-ease) both; }

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