/* Explain: App-specific layout utilities and component styles. */
:root {
    --topbar-h: 3.9rem;
    --rail-w: 4.6rem;
}

/* ---------- Barra superior ---------- */
.app-topbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 60;
    height: var(--topbar-h);
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0 0.9rem;
    background: var(--surface-color);
    border-bottom: 1px solid var(--border-color);
}

.rail-toggle {
    width: 2.5rem;
    height: 2.5rem;
    flex-shrink: 0;
    display: grid;
    place-items: center;
    border-radius: 0.6rem;
    border: 1px solid transparent;
    background: transparent;
    color: var(--text-color);
    font-size: 1.05rem;
    cursor: pointer;
    transition: background 0.2s ease, color 0.2s ease;
}

.rail-toggle:hover { background: var(--surface-alt); color: var(--primary-hover); }

.topbar-brand {
    display: flex;
    align-items: center;
    gap: 0.55rem;
    text-decoration: none;
    margin-right: auto;
    min-width: 0;
}

.topbar-brand__logo { height: 2.4rem; width: auto; max-width: 100%; object-fit: contain; display: block; }

.topbar-brand__text {
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: 1.02rem;
    color: var(--primary-color);
    letter-spacing: -0.01em;
    white-space: nowrap;
}

.topbar-user { display: flex; align-items: center; gap: 0.5rem; min-width: 0; }

.topbar-user__name {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-muted);
    max-width: 13rem;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.topbar-user__avatar {
    width: 2.1rem;
    height: 2.1rem;
    flex-shrink: 0;
    border-radius: 999px;
    display: grid;
    place-items: center;
    background: var(--primary-soft);
    color: var(--primary-hover);
    font-size: 0.9rem;
}

.topbar-logout {
    width: 2.3rem;
    height: 2.3rem;
    flex-shrink: 0;
    display: grid;
    place-items: center;
    border-radius: 0.6rem;
    border: 1px solid var(--border-color);
    background: var(--surface-color);
    color: var(--text-muted);
    cursor: pointer;
    font-size: 0.9rem;
    transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

.topbar-logout:hover { border-color: var(--danger-color); color: var(--danger-color); background: var(--danger-soft); }

@media (max-width: 639px) {
    .topbar-brand__text { display: none; }
    .topbar-user__name { max-width: 7rem; }
}

/* ---------- Trilha lateral (ícones) ---------- */
.app-rail {
    position: fixed;
    top: var(--topbar-h);
    bottom: 0;
    left: 0;
    z-index: 55;
    width: var(--rail-w);
    padding: 0.9rem 0.5rem;
    background: var(--rail-color);
    display: flex;
    flex-direction: column;
    align-items: center;
    overflow-y: auto;
    overflow-x: hidden;
    transform: translateX(-100%);
    transition: transform 0.22s ease;
}

.app-rail.is-open { transform: translateX(0); }

.rail-nav { display: flex; flex-direction: column; gap: 0.35rem; width: 100%; align-items: center; }

.rail-link {
    width: 3rem;
    height: 3rem;
    display: grid;
    place-items: center;
    border-radius: 0.7rem;
    color: rgba(255, 255, 255, 0.72);
    font-size: 1.05rem;
    text-decoration: none;
    transition: background 0.2s ease, color 0.2s ease;
}

.rail-link:hover { background: rgba(255, 255, 255, 0.12); color: #fff; }
.rail-link.is-active { background: var(--surface-color); color: var(--primary-color); }

.rail-backdrop {
    position: fixed;
    inset: var(--topbar-h) 0 0 0;
    z-index: 54;
    background: rgba(11, 18, 56, 0.45);
}

/* ---------- Conteúdo principal + rodapé ---------- */
.app-main { padding: calc(var(--topbar-h) + 1.25rem) 1rem 3rem; }
.app-footer { padding: 0 1rem 1.5rem; }

@media (min-width: 1024px) {
    .app-rail { transform: translateX(0); }
    .rail-backdrop { display: none; }
    .app-main { margin-left: var(--rail-w); padding: calc(var(--topbar-h) + 1.75rem) 2.25rem 3.5rem; }
    .app-footer { margin-left: var(--rail-w); padding: 0 2.25rem 2rem; }

    body.nav-collapsed .app-rail { transform: translateX(-100%); }
    body.nav-collapsed .app-main { margin-left: 0; }
    body.nav-collapsed .app-footer { margin-left: 0; }
}

.app-footer__inner {
    border-top: 1px solid var(--border-color);
    padding-top: 1rem;
    display: flex;
    flex-wrap: wrap;
    gap: 0.35rem 1rem;
    justify-content: space-between;
    align-items: center;
    font-size: 0.75rem;
    color: var(--text-muted);
}

/* ---------- Cabeçalho de marca (home) ---------- */
.brand-hero {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 0.6rem;
    padding: 2.25rem 1.25rem;
    margin-bottom: 1.5rem;
    background: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: 1rem;
    box-shadow: 0 1px 2px rgba(15, 23, 42, 0.05);
}

.brand-hero__mark { width: min(22rem, 82%); height: auto; display: grid; place-items: center; }
.brand-hero__mark img { max-width: 100%; max-height: 9rem; width: auto; height: auto; object-fit: contain; }

.brand-hero__name {
    font-size: clamp(1.9rem, 7vw, 3.2rem);
    font-weight: 800;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: var(--primary-color);
    margin: 0;
}

.brand-hero__sub {
    font-size: clamp(0.72rem, 2.4vw, 0.95rem);
    font-weight: 600;
    letter-spacing: 0.26em;
    text-transform: uppercase;
    color: var(--text-muted);
}

/* ---------- Estruturas de conteúdo ---------- */
.page-head {
    display: flex;
    flex-wrap: wrap;
    align-items: flex-end;
    justify-content: space-between;
    gap: 1.25rem;
    margin-bottom: 1.5rem;
}

.page-head__text { max-width: 48rem; }
.page-head h1,
.page-head h2 { font-size: clamp(1.5rem, 3vw, 2.05rem); font-weight: 800; margin: 0.6rem 0 0.5rem; }
.page-head p { color: var(--text-muted); font-size: 0.92rem; line-height: 1.6; }
.page-head__actions { display: flex; flex-wrap: wrap; gap: 0.6rem; }

.pill {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--primary-hover);
    background: var(--primary-soft);
    padding: 0.3rem 0.7rem;
    border-radius: 999px;
}

.grid-modules { display: grid; gap: 1rem; grid-template-columns: 1fr; }
@media (min-width: 640px) { .grid-modules { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (min-width: 1280px) { .grid-modules { grid-template-columns: repeat(3, minmax(0, 1fr)); } }

.stat-grid { display: grid; gap: 1rem; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); }

.form-grid { display: grid; gap: 1rem; grid-template-columns: 1fr; }
.form-grid + .form-grid { margin-top: 1rem; }
@media (min-width: 768px) {
    .form-grid--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .form-grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}

.stack { display: grid; gap: 1rem; }
.stack-sm { display: grid; gap: 0.5rem; }