/* ===== Tema (inspirado no menu do PlayStation 2) ===== */

/* As cores de texto (amarelo, azul, branco) e o contorno preto são
   iguais nos dois temas; só o fundo e a translucidez dos painéis mudam. */
:root {
    --ps2-yellow: #f2e34a;
    --ps2-blue: #6cc8ff;
    --ps2-white: #f4f6fb;
    --ps2-outline: #000;

    /* escuro (padrão) */
    --bg-top: #0a0d2a;
    --bg-bottom: #1b2666;
    --panel: rgba(4, 8, 40, 0.55);
    --panel-border: rgba(160, 220, 255, 0.35);
    --log-bg: rgba(0, 0, 0, 0.45);
    --log-text: var(--ps2-white);
    --hr: rgba(160, 220, 255, 0.35);

    /* texto corrido (descrições e rodapé): branco no escuro, preto no claro */
    --body-text: var(--ps2-white);

    /* gelo */
    --ice-fill: rgba(170, 220, 255, 0.18);
    --ice-fill-hover: rgba(190, 230, 255, 0.30);
    --ice-edge: rgba(230, 245, 255, 0.75);
    --ice-shine: rgba(255, 255, 255, 0.55);
    --ice-side: rgba(90, 160, 220, 0.45);
    --ice-side-dark: rgba(10, 40, 90, 0.55);
    --ice-danger-fill: rgba(255, 120, 120, 0.22);
    --ice-danger-fill-hover: rgba(255, 140, 140, 0.34);
    --ice-danger-edge: rgba(255, 200, 200, 0.8);
    --ice-danger-side: rgba(200, 70, 70, 0.5);
    --ice-danger-side-dark: rgba(90, 10, 10, 0.6);

    color-scheme: dark;
}

/* claro: fundo azul-céu do PS2, ainda escuro o bastante para o texto branco
   com contorno preto continuar legível */
@media (prefers-color-scheme: light) {
    :root:not([data-theme]) {
        --bg-top: #6f9fe0;
        --bg-bottom: #b9d3f6;
        --panel: rgba(255, 255, 255, 0.22);
        --panel-border: rgba(255, 255, 255, 0.6);
        --log-bg: rgba(10, 30, 80, 0.55);
        --hr: rgba(255, 255, 255, 0.6);
        --body-text: #0a0d2a;
        --ice-fill: rgba(255, 255, 255, 0.28);
        --ice-fill-hover: rgba(255, 255, 255, 0.42);
        --ice-edge: rgba(255, 255, 255, 0.95);
        --ice-shine: rgba(255, 255, 255, 0.8);
        --ice-side: rgba(60, 120, 200, 0.5);
        --ice-side-dark: rgba(20, 60, 130, 0.6);
        color-scheme: light;
    }
}

:root[data-theme="light"] {
    --bg-top: #6f9fe0;
    --bg-bottom: #b9d3f6;
    --panel: rgba(255, 255, 255, 0.22);
    --panel-border: rgba(255, 255, 255, 0.6);
    --log-bg: rgba(10, 30, 80, 0.55);
    --hr: rgba(255, 255, 255, 0.6);
    --body-text: #0a0d2a;
    --ice-fill: rgba(255, 255, 255, 0.28);
    --ice-fill-hover: rgba(255, 255, 255, 0.42);
    --ice-edge: rgba(255, 255, 255, 0.95);
    --ice-shine: rgba(255, 255, 255, 0.8);
    --ice-side: rgba(60, 120, 200, 0.5);
    --ice-side-dark: rgba(20, 60, 130, 0.6);
    color-scheme: light;
}

/* ===== Base ===== */

* {
    box-sizing: border-box;
}

html,
body {
    margin: 0;
    min-height: 100%;
}

body {
    font-family: "Trebuchet MS", "Segoe UI", Tahoma, sans-serif;
    font-size: 16px;
    color: var(--ps2-white);
    background: radial-gradient(ellipse at 30% 20%, var(--bg-bottom) 0%, var(--bg-top) 75%) fixed;
    padding: 24px 16px 40px;
}

.container {
    max-width: 1280px;
    margin: 0 auto;
}

/* Texto com contorno preto, como no menu do PS2 */
.outlined,
h1,
h2,
h3,
h4,
.btn,
.badge {
    -webkit-text-stroke: 1px var(--ps2-outline);
    paint-order: stroke fill;
    text-shadow:
        1px 1px 0 var(--ps2-outline),
        -1px 1px 0 var(--ps2-outline),
        1px -1px 0 var(--ps2-outline),
        -1px -1px 0 var(--ps2-outline);
    letter-spacing: 0.02em;
}

.text-primary {
    color: var(--ps2-yellow);
}

.text-secondary {
    color: var(--ps2-blue);
}

h1 {
    color: var(--ps2-yellow);
    font-size: 1.6rem;
    font-weight: 600;
    margin: 0;
}

h2,
h4 {
    color: var(--ps2-blue);
    font-size: 1.15rem;
    font-weight: 600;
    margin: 0;
}

hr {
    border: 0;
    border-top: 1px solid var(--hr);
    margin: 16px 0;
}

small {
    display: block;
    font-size: 0.85rem;
    line-height: 1.5;
}

/* ===== Layout ===== */

.row {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    align-items: center;
    margin: 12px 0;
}

.row--between {
    justify-content: space-between;
}

/* Duas colunas: cenários à esquerda, registro à direita.
   Em largura de celular vira uma coluna só. */
.layout {
    display: grid;
    grid-template-columns: minmax(0, 3fr) minmax(0, 2fr);
    gap: 24px;
    align-items: start;
}

.layout__log {
    position: sticky;
    top: 16px;
}

.layout__log .log {
    max-height: calc(100vh - 120px);
}

@media (max-width: 767px) {
    .layout {
        grid-template-columns: minmax(0, 1fr);
    }

    .layout__log {
        position: static;
    }

    .layout__log .log {
        max-height: 220px;
    }
}

.category {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin: 12px 0;
}

.scenario {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    align-items: center;
}

.scenario .btn {
    flex: 0 0 auto;
    min-width: 220px;
}

.scenario__desc {
    flex: 1 1 260px;
    font-size: 0.9rem;
    line-height: 1.4;
    color: var(--body-text);
}

.header {
    margin-bottom: 20px;
}

.intro {
    background: var(--panel);
    border: 1px solid var(--panel-border);
    padding: 14px 18px;
    margin: 20px 0;
    color: var(--body-text);
    line-height: 1.5;
}

.intro h2 {
    margin-bottom: 8px;
}

.intro p {
    margin: 0 0 10px;
}

.intro p:last-child {
    margin-bottom: 0;
}

.intro code {
    font-family: Consolas, "Courier New", monospace;
    font-size: 0.9em;
}

.value-panel {
    background: var(--panel);
    border: 1px solid var(--panel-border);
    padding: 14px 18px;
    margin: 20px 0;
}

.footer {
    display: flex;
    flex-direction: column;
    gap: 6px;
    margin-top: 12px;
    color: var(--body-text);
}

/* No tema claro o rodapé fica preto sem contorno: mais fácil de ler. */
@media (prefers-color-scheme: light) {
    :root:not([data-theme]) .footer .outlined {
        -webkit-text-stroke: 0;
        text-shadow: none;
    }

    :root:not([data-theme]) .footer .text-secondary {
        color: #1b3f8f;
    }
}

:root[data-theme="light"] .footer .outlined {
    -webkit-text-stroke: 0;
    text-shadow: none;
}

:root[data-theme="light"] .footer .text-secondary {
    color: #1b3f8f;
}

/* ===== Badge ===== */

.badge {
    display: inline-block;
    color: var(--ps2-yellow);
    font-weight: 600;
    padding: 0.2em 0.6em;
    border: 1px solid var(--panel-border);
    background: rgba(0, 0, 0, 0.3);
}

/* ===== Botões de gelo ===== */

.btn {
    --fill: var(--ice-fill);
    --fill-hover: var(--ice-fill-hover);
    --edge: var(--ice-edge);
    --side: var(--ice-side);
    --side-dark: var(--ice-side-dark);
    --depth: 5px;

    position: relative;
    appearance: none;
    cursor: pointer;
    font: inherit;
    font-weight: 600;
    color: var(--ps2-white);
    padding: 12px 18px;
    border: 1px solid var(--edge);
    border-radius: 0;
    background: var(--fill);
    backdrop-filter: blur(6px) saturate(140%);
    -webkit-backdrop-filter: blur(6px) saturate(140%);
    box-shadow:
        /* brilho interno no topo e na esquerda, como aresta de gelo */
        inset 1px 1px 0 var(--ice-shine),
        inset 0 0 18px rgba(255, 255, 255, 0.12),
        /* sombra interna na base, dá volume ao bloco */
        inset -1px -2px 0 var(--side),
        /* lateral do bloco (3D) */
        0 1px 0 var(--side),
        0 2px 0 var(--side),
        0 3px 0 var(--side-dark),
        0 4px 0 var(--side-dark),
        0 var(--depth) 0 var(--side-dark),
        /* projeção no "chão" */
        0 10px 16px rgba(0, 0, 0, 0.35);
    transform: translateY(0);
    transition: transform 80ms ease, box-shadow 80ms ease, background-color 120ms ease;
}

/* reflexo diagonal, como luz atravessando o gelo */
.btn::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(
        115deg,
        rgba(255, 255, 255, 0) 30%,
        rgba(255, 255, 255, 0.28) 45%,
        rgba(255, 255, 255, 0) 60%
    );
    pointer-events: none;
}

.btn:hover {
    background: var(--fill-hover);
}

.btn:active {
    transform: translateY(var(--depth));
    box-shadow:
        inset 1px 1px 0 var(--ice-shine),
        inset -1px -2px 0 var(--side),
        0 0 0 var(--side-dark),
        0 2px 6px rgba(0, 0, 0, 0.4);
}

.btn:focus-visible {
    outline: 2px solid var(--ps2-yellow);
    outline-offset: 3px;
}

.btn--primary {
    color: var(--ps2-yellow);
}

.btn--danger {
    --fill: var(--ice-danger-fill);
    --fill-hover: var(--ice-danger-fill-hover);
    --edge: var(--ice-danger-edge);
    --side: var(--ice-danger-side);
    --side-dark: var(--ice-danger-side-dark);
}

.btn--small {
    --depth: 4px;
    padding: 7px 12px;
    font-size: 0.9rem;
}

/* ===== Log ===== */

.log {
    margin-top: 10px;
    padding: 10px 12px;
    min-height: 60px;
    max-height: 220px;
    overflow-y: auto;
    resize: vertical;
    font-family: Consolas, "Courier New", monospace;
    font-size: 0.85rem;
    line-height: 1.5;
    color: var(--log-text);
    background: var(--log-bg);
    border: 1px solid var(--panel-border);
}