/* Identidade exclusiva da página inicial: âmbar + roxo. */
.fi-page {
    --fi-amber: #e9b949;
    --fi-plum: #4f3868;
    --fi-plum-hover: #3a264f;
    --fi-ink: #362044;
    --fi-muted: #665574;
    --fi-bg: #fffbf0;
    --fi-paper: #fff;
    --fi-border: #edcb77;
    --fi-input-border: #ddd3e9;
    --fi-hero-ink: #4f3868;
    --fi-hero-light: #ffe39a;
    background: var(--fi-bg);
    color: var(--fi-ink);
    padding: 22px 0 40px;
    min-width: 0;
    font-family: inherit;
    line-height: 1.5;
}
.fi-page *, .fi-page *::before, .fi-page *::after { box-sizing: border-box; }
.fi-page [hidden] { display: none !important; }
.fi-page .fi-container { width: min(1420px, calc(100% - 48px)); margin: 0 auto; }
.fi-page .fi-hero {
    position: relative;
    isolation: isolate;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    min-height: 260px;
    padding: 36px 52px;
    border-radius: 23px;
    background: linear-gradient(110deg, #f7d367 0%, #efc247 50%, #ffdf78 100%);
    color: var(--fi-hero-ink);
}
.fi-page .fi-hero::before, .fi-page .fi-hero::after {
    content: "";
    position: absolute;
    z-index: -1;
    border-radius: 50%;
    background: rgba(255, 247, 210, .25);
    width: 290px;
    height: 290px;
    pointer-events: none;
}
.fi-page .fi-hero::before { left: -180px; top: -150px; }
.fi-page .fi-hero::after { right: -130px; bottom: -180px; width: 420px; height: 420px; }
.fi-page .fi-hero-copy { flex: 1 1 720px; min-width: 0; }
.fi-page .fi-eyebrow { display: block; font-weight: 800; font-size: .82rem; text-transform: uppercase; letter-spacing: .25em; margin: 0 0 15px; }
.fi-page .fi-hero h1 { margin: 0; color: var(--fi-hero-ink); font-weight: 850; font-size: clamp(2.05rem, 3.6vw, 3.65rem); line-height: 1.13; letter-spacing: -.035em; }
.fi-page .fi-hero p { margin: 16px 0 0; color: var(--fi-hero-ink); font-size: clamp(1.05rem, 1.9vw, 1.7rem); line-height: 1.45; }
.fi-page .fi-hero-art { display: block; width: min(33%, 390px); flex: 0 0 min(33%, 390px); height: auto; }
.fi-page .fi-hero-cell { fill: rgba(255, 255, 255, .65); stroke: none; }
.fi-page .fi-controls { padding: 22px 0 0; }
.fi-page .fi-search { position: relative; max-width: 820px; margin: 0 auto; }
.fi-page .fi-search svg { position: absolute; left: 20px; top: 50%; transform: translateY(-50%); width: 24px; height: 24px; fill: none; stroke: var(--fi-plum); stroke-width: 2.5; stroke-linecap: round; pointer-events: none; }
.fi-page .fi-search input { width: 100%; min-height: 54px; margin: 0; padding: 14px 20px 14px 58px; border: 1px solid var(--fi-input-border); border-radius: 12px; background: var(--fi-paper); color: var(--fi-ink); font: inherit; font-size: 1rem; box-shadow: none; }
.fi-page .fi-search input::placeholder { color: var(--fi-muted); opacity: 1; }
.fi-page .fi-filters { display: flex; flex-wrap: wrap; justify-content: center; gap: 12px; margin: 16px 0 0; }
.fi-page .fi-filter { appearance: none; min-height: 42px; margin: 0; padding: 9px 25px; border: 1px solid var(--fi-border); border-radius: 10px; background: transparent; color: var(--fi-plum); font: inherit; font-size: .91rem; font-weight: 750; line-height: 1.4; cursor: pointer; transition: background .16s, color .16s; }
.fi-page .fi-filter:hover { background: #f6e8c8; }
.fi-page .fi-filter[aria-pressed="true"] { background: var(--fi-plum); border-color: var(--fi-plum); color: #fff; }
.fi-page .fi-directory > h2 { margin: 22px 0 20px; color: var(--fi-plum); font-size: clamp(1.7rem, 2.3vw, 2.35rem); font-weight: 850; letter-spacing: -.035em; line-height: 1.2; }
.fi-page .fi-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); align-items: stretch; gap: 18px; margin: 0; padding: 0; list-style: none; }
.fi-page .fi-card { min-width: 0; display: flex; flex-direction: column; gap: 18px; padding: 20px 15px 15px; border: 1px solid var(--fi-border); border-radius: 12px; background: var(--fi-paper); box-shadow: 0 4px 16px rgba(87, 53, 24, .035); transition: transform .18s, box-shadow .18s; }
.fi-page .fi-card:hover { transform: translateY(-3px); box-shadow: 0 9px 22px rgba(79, 56, 104, .09); }
.fi-page .fi-card-content { display: flex; align-items: flex-start; gap: 15px; flex: 1; }
.fi-page .fi-card-icon { display: block; width: 64px; flex: 0 0 64px; color: var(--fi-plum); }
.fi-page .fi-icon { display: block; width: 100%; height: auto; overflow: visible; }
.fi-page .fi-accent-fill { fill: var(--fi-amber); stroke: none; }
.fi-page .fi-purple-fill { fill: var(--fi-plum); stroke: none; }
.fi-page .fi-paper-fill { fill: var(--fi-paper); }
.fi-page .fi-white-fill { fill: #fff; stroke: none; }
.fi-page .fi-white-stroke { stroke: #fff; }
.fi-page .fi-accent-stroke { stroke: var(--fi-amber); }
.fi-page .fi-green-stroke { stroke: #00856a; }
.fi-page .fi-letters { stroke: none; fill: var(--fi-plum); font-family: ui-sans-serif, system-ui, sans-serif; font-size: 13px; font-weight: 800; }
.fi-page .fi-accent-text { fill: #9b6800; }
.fi-page .fi-card-copy { min-width: 0; }
.fi-page .fi-card h3 { margin: 2px 0 6px; color: var(--fi-plum); font-size: 1.04rem; font-weight: 800; line-height: 1.3; letter-spacing: -.02em; overflow-wrap: anywhere; }
.fi-page .fi-card p { margin: 0; color: var(--fi-muted); font-size: .91rem; line-height: 1.55; }
.fi-page .fi-open { display: flex; align-items: center; justify-content: center; width: 100%; min-height: 42px; padding: 10px 12px; border: 1px solid transparent; border-radius: 8px; background: var(--fi-plum); color: #fff; font: inherit; font-size: .89rem; font-weight: 750; line-height: 1.4; text-align: center; text-decoration: none; cursor: pointer; transition: background .16s; }
.fi-page .fi-open:hover { background: var(--fi-plum-hover); color: #fff; text-decoration: none; }
.fi-page :is(a, button, input, summary):focus-visible { outline: 3px solid var(--fi-plum); outline-offset: 4px; }
.fi-page .fi-empty { padding: 38px 24px; border: 1px dashed var(--fi-border); border-radius: 14px; background: var(--fi-paper); text-align: center; }
.fi-page .fi-empty h3 { color: var(--fi-plum); margin: 0 0 8px; font-size: 1.2rem; }
.fi-page .fi-empty p { color: var(--fi-muted); margin: 0 0 20px; }
.fi-page .fi-reset { width: auto; margin: 0 auto; }
.fi-page .fi-records { margin: 26px 0 0; padding: 14px 18px; border: 1px solid var(--fi-input-border); border-radius: 12px; color: var(--fi-muted); font-size: .86rem; background: var(--fi-paper); }
.fi-page .fi-records summary { cursor: pointer; font-weight: 650; }
.fi-page .fi-records p { margin: 10px 0 0; }
.fi-page .fi-records a { color: var(--fi-plum); text-decoration: underline; text-underline-offset: 3px; }
.fi-page .fi-sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; border: 0; }

/* Acompanha o seletor de tema já existente na Biblioteca. */
html[data-ri-theme="dark"] .fi-page {
    --fi-plum: #dcc7f0;
    --fi-plum-hover: #4b3065;
    --fi-ink: #f5ecff;
    --fi-muted: #cbbbd6;
    --fi-bg: #191424;
    --fi-paper: #251e31;
    --fi-border: #695438;
    --fi-input-border: #584469;
}
html[data-ri-theme="dark"] .fi-page .fi-purple-fill { fill: #9470b4; }
html[data-ri-theme="dark"] .fi-page :is(.fi-open, .fi-filter[aria-pressed="true"]) { background: #654480; color: #fff; }
html[data-ri-theme="dark"] .fi-page :is(.fi-open:hover, .fi-filter:hover) { background: #4b3065; }
html[data-ri-theme="dark"] .fi-page .fi-green-stroke { stroke: #52d3ae; }
html[data-ri-theme="dark"] .fi-page .fi-accent-text { fill: #e9b949; }

@media (max-width: 1199px) {
    .fi-page .fi-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
    .fi-page .fi-hero { padding: 34px; }
}
@media (max-width: 899px) {
    .fi-page .fi-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .fi-page .fi-hero { min-height: 220px; padding: 30px; }
    .fi-page .fi-hero-art { width: 28%; flex-basis: 28%; }
    .fi-page .fi-hero h1 { font-size: clamp(2rem, 4.5vw, 3rem); }
}
@media (max-width: 599px) {
    .fi-page { padding-top: 16px; }
    .fi-page .fi-container { width: calc(100% - 28px); }
    .fi-page .fi-hero { min-height: 0; padding: 30px 24px; border-radius: 18px; }
    .fi-page .fi-hero-art { display: none; }
    .fi-page .fi-hero h1 { font-size: clamp(2rem, 7.5vw, 2.65rem); }
    .fi-page .fi-eyebrow { font-size: .72rem; }
    .fi-page .fi-hero p { font-size: 1.08rem; }
    .fi-page .fi-grid { grid-template-columns: minmax(0, 1fr); gap: 14px; }
    .fi-page .fi-card { padding: 18px; }
    .fi-page .fi-card-content { gap: 18px; }
    .fi-page .fi-card-icon { width: 60px; flex-basis: 60px; }
    .fi-page .fi-filters { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; }
    .fi-page .fi-filter { padding: 10px 8px; }
    .fi-page .fi-search input { font-size: .94rem; padding-left: 47px; padding-right: 10px; }
    .fi-page .fi-search svg { left: 15px; width: 21px; }
    .fi-page .fi-directory > h2 { font-size: 1.65rem; }
}
@media (prefers-reduced-motion: reduce) {
    .fi-page :is(.fi-card, .fi-open, .fi-filter) { transition: none; }
    .fi-page .fi-card:hover { transform: none; }
}
@media print {
    .fi-page { background: #fff; color: #362044; padding: 0; }
    .fi-page .fi-container { width: 100%; }
    .fi-page :is(.fi-controls, .fi-records, .fi-hero-art) { display: none !important; }
    .fi-page .fi-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .fi-page .fi-card { break-inside: avoid; box-shadow: none; }
}

/* Onda ascendente inspirada nos cartões da Visão Geral de Programação. */
.fi-page {
    --fi-card-wave: #f0e9f6;
    --fi-button-wave: #735187;
    --fi-hover-border: #b9a5cd;
}
.fi-page .fi-card { position: relative; isolation: isolate; overflow: hidden; }
.fi-page .fi-card::before {
    content: "";
    position: absolute;
    left: -35%;
    right: -35%;
    bottom: -80%;
    height: 120%;
    border-radius: 50%;
    background: var(--fi-card-wave);
    transform: translateY(40%);
    transition: transform .55s cubic-bezier(.2, .8, .2, 1);
    pointer-events: none;
    z-index: 0;
}
.fi-page .fi-card-content, .fi-page .fi-card > .fi-open { position: relative; z-index: 1; }
.fi-page .fi-open { position: relative; isolation: isolate; overflow: hidden; }
.fi-page .fi-open::before {
    content: "";
    position: absolute;
    left: -25%;
    right: -25%;
    bottom: -190%;
    height: 200%;
    border-radius: 50%;
    background: var(--fi-button-wave);
    transform: translateY(20%);
    transition: transform .55s cubic-bezier(.2, .8, .2, 1);
    pointer-events: none;
    z-index: -1;
}
.fi-page .fi-card:focus-within {
    transform: translateY(-3px);
    border-color: var(--fi-hover-border);
    box-shadow: 0 15px 36px rgba(79, 56, 104, .12);
}
.fi-page .fi-card:focus-within::before { transform: translateY(-48%); }
.fi-page .fi-open:focus-visible::before { transform: translateY(-55%); }
@media (hover: hover) {
    .fi-page .fi-card:hover {
        border-color: var(--fi-hover-border);
        box-shadow: 0 15px 36px rgba(79, 56, 104, .12);
    }
    .fi-page .fi-card:hover::before { transform: translateY(-48%); }
    .fi-page .fi-open:hover::before { transform: translateY(-55%); }
}
html[data-ri-theme="dark"] .fi-page {
    --fi-card-wave: #332740;
    --fi-button-wave: #795991;
    --fi-hover-border: #a087b7;
}
@media (prefers-reduced-motion: reduce) {
    .fi-page .fi-card::before, .fi-page .fi-open::before { transition: none; }
    .fi-page .fi-card:focus-within { transform: none; }
}
@media print {
    .fi-page .fi-card::before, .fi-page .fi-open::before { display: none; }
    .fi-page .fi-card:focus-within { transform: none; }
}