/* =====================================================================
   Gabarita - camada de UI comum a todas as telas (Aluno, Admin, Docente)
   Refina os componentes do MudBlazor e oferece blocos reutilizáveis:
   g-hero, g-stat, g-section, g-toolbar, g-skel, g-empty, g-badge.
   Depende dos tokens de theme.css.
   ===================================================================== */

/* ---------------------------------------------------------------------
   Entrada suave do conteúdo a cada navegação
   --------------------------------------------------------------------- */
.g-main .mud-container > * {
    animation: gPageIn .32s cubic-bezier(.2, .8, .2, 1) both;
}

@keyframes gPageIn {
    from { opacity: 0; transform: translateY(6px); }
    to { opacity: 1; transform: none; }
}

@media (prefers-reduced-motion: reduce) {
    .g-main .mud-container > * { animation: none; }
}

/* ---------------------------------------------------------------------
   Tipografia
   --------------------------------------------------------------------- */
.g-main .mud-typography-h3,
.g-main .mud-typography-h4 { font-weight: 800 !important; letter-spacing: -.025em; }
.g-main .mud-typography-h5,
.g-main .mud-typography-h6 { font-weight: 700 !important; letter-spacing: -.01em; }
.g-main .mud-typography-subtitle1,
.g-main .mud-typography-subtitle2 { font-weight: 600; }
.mud-typography-caption { letter-spacing: .1px; }

/* ---------------------------------------------------------------------
   Superfícies: papers, cards, expansion panels
   --------------------------------------------------------------------- */
.g-main .mud-paper:not(.mud-appbar):not(.mud-drawer):not(.mud-popover):not(.mud-snackbar):not(.mud-table) {
    border-radius: var(--g-radius);
}

.g-main .mud-paper.mud-elevation-1,
.g-main .mud-paper.mud-elevation-2,
.g-main .mud-paper.mud-elevation-3,
.g-main .mud-paper.mud-elevation-4 {
    box-shadow: var(--g-shadow-sm) !important;
    border: 1px solid var(--g-border);
}

.g-main .mud-paper.mud-elevation-0:not(.mud-paper-outlined) { background-color: var(--g-surface); }

.mud-card {
    border: 1px solid var(--g-border);
    box-shadow: var(--g-shadow-sm) !important;
    transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
    overflow: hidden;
}

.mud-card:hover { border-color: var(--g-border-strong); }

.mud-card-header { padding: 18px 20px 8px !important; }
.mud-card-content { padding: 14px 20px !important; }
.mud-card-actions { padding: 10px 16px 16px !important; gap: 8px; }

.mud-expand-panel {
    border: 1px solid var(--g-border) !important;
    border-radius: var(--g-radius) !important;
    margin-bottom: 10px !important;
    box-shadow: none !important;
    background: var(--g-surface) !important;
}

.mud-expand-panel::before { display: none !important; }
.mud-expand-panel .mud-expand-panel-header { padding: 14px 18px !important; font-weight: 600; }
.mud-expand-panel.mud-panel-expanded { border-color: rgba(var(--g-accent-rgb), .35) !important; }

/* ---------------------------------------------------------------------
   Tabelas
   --------------------------------------------------------------------- */
.mud-table {
    background: var(--g-surface) !important;
    border: 1px solid var(--g-border);
    box-shadow: var(--g-shadow-sm) !important;
    overflow: hidden;
}

.mud-table.mud-elevation-0 { box-shadow: none !important; }

.mud-table-toolbar {
    padding: 14px 18px !important;
    min-height: 64px;
    gap: 12px;
    border-bottom: 1px solid var(--g-border);
}

.mud-table-head .mud-table-cell {
    background: var(--g-surface-2) !important;
    color: var(--g-text-2) !important;
    font-size: .72rem !important;
    font-weight: 700 !important;
    text-transform: uppercase;
    letter-spacing: .7px;
    border-bottom: 1px solid var(--g-border) !important;
    padding-top: 12px !important;
    padding-bottom: 12px !important;
    white-space: nowrap;
}

.mud-table-body .mud-table-cell {
    border-bottom: 1px solid var(--g-border) !important;
    padding-top: 12px;
    padding-bottom: 12px;
    font-size: .9rem;
}

.mud-table-dense .mud-table-body .mud-table-cell { padding-top: 8px; padding-bottom: 8px; }

.mud-table-body .mud-table-row:last-child .mud-table-cell { border-bottom: none !important; }

.mud-table-hover .mud-table-body .mud-table-row:hover {
    background: rgba(var(--g-accent-rgb), .045) !important;
}

.mud-table-pagination-toolbar {
    border-top: 1px solid var(--g-border);
    color: var(--g-text-2) !important;
}

/* Tabela em cartões no celular */
@media (max-width: 959.98px) {
    .mud-table-smalldevices-sortselect { margin: 8px 12px; }

    .mud-xs-table .mud-table-row,
    .mud-sm-table .mud-table-row {
        border-bottom: 1px solid var(--g-border);
        padding: 6px 0;
    }

    .mud-xs-table .mud-table-cell,
    .mud-sm-table .mud-table-cell { border-bottom: none !important; }

    .mud-xs-table .mud-table-cell::before,
    .mud-sm-table .mud-table-cell::before {
        color: var(--g-text-3);
        font-size: .72rem;
        text-transform: uppercase;
        letter-spacing: .5px;
        font-weight: 600;
    }
}

/* ---------------------------------------------------------------------
   Campos de formulário
   --------------------------------------------------------------------- */
.mud-input.mud-input-outlined { border-radius: 10px; }
.mud-input.mud-input-outlined .mud-input-outlined-border { border-radius: 10px; transition: border-color .15s ease, box-shadow .15s ease; }
.mud-input.mud-input-outlined:hover:not(.mud-disabled) .mud-input-outlined-border { border-color: var(--g-text-3) !important; }

.mud-input.mud-input-outlined:focus-within .mud-input-outlined-border {
    border-color: var(--g-accent) !important;
}

.mud-input.mud-input-outlined:focus-within .mud-input-outlined-border {
    box-shadow: 0 0 0 3px rgba(var(--g-accent-rgb), .16);
}

.mud-input-control > .mud-input-control-input-container > .mud-input-label-outlined.mud-input-label-inputcontrol { color: var(--g-text-2); }
.mud-input-control:focus-within .mud-input-label { color: var(--g-accent) !important; }

.mud-input.mud-input-filled { border-radius: 10px 10px 0 0; background: var(--g-surface-2) !important; }
.mud-input-underline::after { border-bottom-color: var(--g-accent) !important; }

.mud-input-helper-text { font-size: .74rem; }

/* Checkbox / switch / radio na cor de destaque */
.mud-checkbox .mud-checked,
.mud-radio .mud-checked { color: var(--g-accent) !important; }

/* ---------------------------------------------------------------------
   Botões
   --------------------------------------------------------------------- */
.mud-button-root.mud-button { border-radius: 10px; font-weight: 600; padding-left: 16px; padding-right: 16px; }
.mud-button-filled { box-shadow: none !important; }
.mud-button-filled:hover { filter: brightness(1.06); box-shadow: 0 6px 18px rgba(var(--g-accent-rgb), .18) !important; }
.mud-button-filled:active { transform: translateY(1px); }
.mud-button-outlined { border-color: var(--g-border-strong) !important; }
.mud-button-outlined:hover { border-color: currentColor !important; }
.mud-button-size-large { padding-top: 10px !important; padding-bottom: 10px !important; }

.mud-icon-button { border-radius: 10px !important; }
.mud-icon-button:hover { background: var(--g-hover) !important; }

.mud-fab { box-shadow: 0 10px 30px rgba(var(--g-accent-rgb), .3) !important; }

/* ---------------------------------------------------------------------
   Abas
   --------------------------------------------------------------------- */
.mud-tabs-tabbar { background: transparent !important; border-bottom: 1px solid var(--g-border); }
.mud-tab { text-transform: none !important; font-weight: 600 !important; color: var(--g-text-2) !important; min-height: 46px; letter-spacing: .1px; }
.mud-tab:hover { color: var(--g-text) !important; background: transparent !important; }
.mud-tab.mud-tab-active { color: var(--g-accent) !important; }
.mud-tab-slider { background: var(--g-accent) !important; height: 3px !important; border-radius: 3px 3px 0 0; }

/* ---------------------------------------------------------------------
   Chips, badges e alertas
   --------------------------------------------------------------------- */
.mud-chip { border-radius: 8px !important; }
.mud-chip.mud-chip-size-small { height: 24px; font-size: .74rem; padding: 0 9px; }

.mud-alert { border-radius: var(--g-radius) !important; font-size: .9rem; align-items: center; }
.mud-alert-text-info { background: var(--g-info-soft) !important; color: var(--g-text) !important; }
.mud-alert-text-success { background: var(--g-success-soft) !important; color: var(--g-text) !important; }
.mud-alert-text-warning { background: var(--g-warning-soft) !important; color: var(--g-text) !important; }
.mud-alert-text-error { background: var(--g-danger-soft) !important; color: var(--g-text) !important; }
.mud-alert-text-info .mud-alert-icon { color: var(--g-info) !important; }
.mud-alert-text-success .mud-alert-icon { color: var(--g-success) !important; }
.mud-alert-text-warning .mud-alert-icon { color: var(--g-warning) !important; }
.mud-alert-text-error .mud-alert-icon { color: var(--g-danger) !important; }

/* ---------------------------------------------------------------------
   Diálogos, menus, popovers, snackbars
   --------------------------------------------------------------------- */
.mud-dialog { box-shadow: var(--g-shadow-lg) !important; background: var(--g-surface) !important; }
.mud-dialog .mud-dialog-title { padding: 20px 24px 8px !important; font-weight: 700; }
.mud-dialog .mud-dialog-title .mud-typography-h6 { font-weight: 700 !important; }
.mud-dialog .mud-dialog-content { padding: 8px 24px 16px !important; }
.mud-dialog .mud-dialog-actions { padding: 12px 20px 20px !important; gap: 8px; }
.mud-overlay-dark { backdrop-filter: blur(3px); -webkit-backdrop-filter: blur(3px); }

.mud-popover {
    border: 1px solid var(--g-border);
    border-radius: 12px !important;
    box-shadow: var(--g-shadow-lg) !important;
    background: var(--g-surface) !important;
}

.mud-list-item { border-radius: 8px; }
.mud-popover .mud-list { padding: 6px !important; }
.mud-selected-item { background: var(--g-accent-soft) !important; color: var(--g-accent) !important; }

.mud-snackbar { border-radius: 12px !important; box-shadow: var(--g-shadow-lg) !important; font-weight: 500; }

/* ---------------------------------------------------------------------
   Progresso, skeleton, breadcrumbs, paginação
   --------------------------------------------------------------------- */
.mud-progress-linear { border-radius: 999px; overflow: hidden; }

.mud-skeleton {
    background: linear-gradient(90deg, var(--g-surface-2) 0%, var(--g-surface-3) 50%, var(--g-surface-2) 100%) !important;
    background-size: 200% 100% !important;
    animation: gShimmer 1.4s ease-in-out infinite !important;
    border-radius: 10px;
}

.mud-skeleton::after { display: none !important; }

.mud-breadcrumbs { padding: 0 0 8px !important; font-size: .82rem; }
.mud-breadcrumbs a { color: var(--g-text-2) !important; }
.mud-breadcrumbs a:hover { color: var(--g-accent) !important; }

.mud-pagination-item .mud-button-root { border-radius: 9px !important; }
.mud-pagination-item-selected .mud-button-root { background: var(--g-accent) !important; color: var(--g-on-accent) !important; }

.mud-divider { border-color: var(--g-border) !important; }

/* ---------------------------------------------------------------------
   Blocos reutilizáveis
   --------------------------------------------------------------------- */

/* Cabeçalho de página com destaque */
.g-hero {
    position: relative;
    overflow: hidden;
    padding: 24px 26px;
    border-radius: var(--g-radius-lg);
    background:
        radial-gradient(120% 140% at 100% 0%, rgba(var(--g-accent-rgb), .16) 0%, transparent 55%),
        var(--g-surface);
    border: 1px solid var(--g-border);
    margin-bottom: 22px;
}

.g-hero::after {
    content: "";
    position: absolute;
    right: -60px;
    top: -60px;
    width: 220px;
    height: 220px;
    border-radius: 50%;
    border: 1px solid rgba(var(--g-accent-rgb), .18);
    box-shadow: 0 0 0 30px rgba(var(--g-accent-rgb), .04), 0 0 0 60px rgba(var(--g-accent-rgb), .025);
    pointer-events: none;
}

.g-hero-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: .74rem;
    font-weight: 700;
    letter-spacing: 1px;
    text-transform: uppercase;
    color: var(--g-accent);
    margin-bottom: 6px;
}

.g-hero-title {
    font-size: clamp(1.35rem, 2.6vw, 1.9rem);
    font-weight: 800;
    letter-spacing: -.025em;
    line-height: 1.15;
    margin: 0;
    color: var(--g-text);
}

.g-hero-sub { color: var(--g-text-2); margin: 6px 0 0; max-width: 640px; font-size: .95rem; }

.g-hero-actions { position: relative; z-index: 1; display: flex; gap: 10px; flex-wrap: wrap; }

/* Cartões de indicador */
.g-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
    gap: 16px;
    margin-bottom: 22px;
}

.g-stat {
    --cor: var(--g-accent);
    --cor-rgb: var(--g-accent-rgb);
    position: relative;
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 18px;
    border-radius: var(--g-radius);
    background: var(--g-surface);
    border: 1px solid var(--g-border);
    box-shadow: var(--g-shadow-sm);
    overflow: hidden;
    transition: transform .18s ease, border-color .18s ease, box-shadow .18s ease;
}

.g-stat:hover { transform: translateY(-2px); border-color: rgba(var(--cor-rgb), .45); box-shadow: var(--g-shadow); }

.g-stat::before {
    content: "";
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 3px;
    background: var(--cor);
    opacity: .9;
}

.g-stat.success { --cor: var(--g-success); --cor-rgb: var(--g-success-rgb); }
.g-stat.danger { --cor: var(--g-danger); --cor-rgb: var(--g-danger-rgb); }
.g-stat.info { --cor: var(--g-info); --cor-rgb: var(--g-info-rgb); }
.g-stat.warning { --cor: var(--g-warning); --cor-rgb: var(--g-warning-rgb); }
.g-stat.purple { --cor: var(--g-purple); --cor-rgb: var(--g-purple-rgb); }
.g-stat.neutral { --cor: var(--g-text-2); --cor-rgb: var(--g-muted-rgb); }

.g-stat-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    display: grid;
    place-items: center;
    flex-shrink: 0;
    color: var(--cor);
    background: rgba(var(--cor-rgb), .12);
}

.g-stat-label { font-size: .74rem; font-weight: 600; text-transform: uppercase; letter-spacing: .6px; color: var(--g-text-2); }
.g-stat-value { font-size: 1.65rem; font-weight: 800; letter-spacing: -.02em; line-height: 1.15; color: var(--g-text); font-variant-numeric: tabular-nums; }
.g-stat-hint { font-size: .78rem; color: var(--g-text-3); margin-top: 2px; }

/* Seção (card com cabeçalho) */
.g-section {
    background: var(--g-surface);
    border: 1px solid var(--g-border);
    border-radius: var(--g-radius);
    box-shadow: var(--g-shadow-sm);
    overflow: hidden;
    margin-bottom: 20px;
}

.g-section-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    flex-wrap: wrap;
    padding: 16px 20px;
    border-bottom: 1px solid var(--g-border);
}

.g-section-title {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
    font-size: 1rem;
    color: var(--g-text);
    margin: 0;
}

.g-section-title .mud-icon-root { color: var(--g-accent); }
.g-section-body { padding: 18px 20px; }
.g-section > .mud-table { border: none; border-radius: 0 !important; box-shadow: none !important; }

/* Barra de filtros/ações acima das listas */
.g-toolbar {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
    padding: 12px;
    border-radius: var(--g-radius);
    background: var(--g-surface);
    border: 1px solid var(--g-border);
    margin-bottom: 16px;
}

.g-toolbar > .mud-input-control { flex: 1 1 220px; margin: 0 !important; }

/* Selo */
.g-badge {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 3px 9px;
    border-radius: 999px;
    font-size: .72rem;
    font-weight: 700;
    letter-spacing: .2px;
    background: var(--g-accent-soft);
    color: var(--g-accent);
    white-space: nowrap;
}

.g-badge.success { background: var(--g-success-soft); color: var(--g-success); }
.g-badge.danger { background: var(--g-danger-soft); color: var(--g-danger); }
.g-badge.info { background: var(--g-info-soft); color: var(--g-info); }
.g-badge.warning { background: var(--g-warning-soft); color: var(--g-warning); }
.g-badge.neutral { background: var(--g-surface-3); color: var(--g-text-2); }

/* Estado vazio */
.g-empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 44px 20px;
    color: var(--g-text-2);
}

.g-empty-state .g-empty-icon {
    width: 64px;
    height: 64px;
    border-radius: 18px;
    display: grid;
    place-items: center;
    margin-bottom: 14px;
    background: var(--g-accent-soft);
    color: var(--g-accent);
}

.g-empty-state h4 { margin: 0 0 4px; font-size: 1rem; font-weight: 700; color: var(--g-text); }
.g-empty-state p { margin: 0 0 16px; font-size: .88rem; max-width: 380px; }

/* Skeleton com brilho */
.g-skel {
    display: block;
    border-radius: 10px;
    background: linear-gradient(90deg, var(--g-surface-2) 0%, var(--g-surface-3) 50%, var(--g-surface-2) 100%);
    background-size: 200% 100%;
    animation: gShimmer 1.4s ease-in-out infinite;
}

.g-skel.texto { height: 12px; border-radius: 6px; }
.g-skel.titulo { height: 20px; border-radius: 8px; }
.g-skel.circulo { border-radius: 50%; }

@keyframes gShimmer {
    0% { background-position: 100% 0; }
    100% { background-position: -100% 0; }
}

/* Linha de lista (ranking etc.) */
.g-row {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 20px;
    border-bottom: 1px solid var(--g-border);
    transition: background-color .15s ease;
}

.g-row:last-child { border-bottom: none; }
.g-row:hover { background: rgba(var(--g-accent-rgb), .04); }

.g-medal {
    width: 30px;
    height: 30px;
    border-radius: 9px;
    display: grid;
    place-items: center;
    font-weight: 800;
    font-size: .85rem;
    flex-shrink: 0;
    background: var(--g-surface-3);
    color: var(--g-text-2);
}

.g-medal.ouro { background: linear-gradient(135deg, #fde047, #eab308); color: #422006; }
.g-medal.prata { background: linear-gradient(135deg, #e5e7eb, #9ca3af); color: #1f2937; }
.g-medal.bronze { background: linear-gradient(135deg, #fdba74, #c2410c); color: #431407; }

/* Barra de progresso fina */
.g-progress { height: 6px; border-radius: 999px; background: var(--g-surface-3); overflow: hidden; }
.g-progress > span { display: block; height: 100%; border-radius: inherit; background: var(--g-accent-gradient); transition: width .5s ease; }

/* Utilitários de layout */
.g-grid-2 { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 20px; }
.g-num { font-variant-numeric: tabular-nums; }

@media (max-width: 599.98px) {
    .g-hero { padding: 20px 18px; }
    .g-stat { padding: 14px; }
    .g-stat-value { font-size: 1.4rem; }
    .g-section-head, .g-section-body { padding-left: 16px; padding-right: 16px; }
    .mud-dialog .mud-dialog-content { padding: 8px 16px 12px !important; }
}

/* ---------------------------------------------------------------------
   Harmonização das telas existentes (classes legadas)
   --------------------------------------------------------------------- */

/* Marca no topo do menu do aluno */
.g-drawer-brand {
    display: flex;
    align-items: center;
    gap: 12px;
    margin: 14px 12px 6px;
    padding: 10px 12px;
    border-radius: 14px;
    background: var(--g-surface);
    border: 1px solid var(--g-border);
    text-decoration: none;
    color: var(--g-text);
}

.g-drawer-brand img { width: 40px; height: 40px; object-fit: contain; border-radius: 10px; flex-shrink: 0; }

.g-drawer-brand-ini {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    flex-shrink: 0;
    display: grid;
    place-items: center;
    font-weight: 800;
    background: var(--g-accent-gradient);
    color: var(--g-on-accent);
}

:root[data-theme="light"] .g-drawer-brand-ini { background: var(--g-accent); color: #fff; }

/* Cabeçalho padrão das telas (div.page-header no admin, div.header-section no aluno) */
.g-main .page-header,
.g-main .header-section {
    position: relative;
    overflow: hidden;
    padding: 20px 24px !important;
    margin-bottom: 20px !important;
    border-radius: var(--g-radius-lg);
    background:
        radial-gradient(110% 160% at 100% 0%, rgba(var(--g-accent-rgb), .13) 0%, transparent 55%),
        var(--g-surface);
    border: 1px solid var(--g-border);
}

.g-main .page-header .mud-typography-h4,
.g-main .header-section .mud-typography-h4,
.g-main .page-header .mud-typography-h5,
.g-main .header-section .mud-typography-h5 {
    font-size: clamp(1.25rem, 2.2vw, 1.55rem) !important;
    font-weight: 800 !important;
    letter-spacing: -.02em;
    display: flex;
    align-items: center;
    gap: 4px;
}

.g-main .page-header .mud-typography-h4 > .mud-icon-root,
.g-main .header-section .mud-typography-h4 > .mud-icon-root,
.g-main .page-header .mud-typography-h5 > .mud-icon-root,
.g-main .header-section .mud-typography-h5 > .mud-icon-root {
    width: 40px;
    height: 40px;
    padding: 8px;
    margin-right: 10px !important;
    border-radius: 11px;
    background: var(--g-accent-soft);
    color: var(--g-accent) !important;
    flex-shrink: 0;
}

.g-main .page-header .mud-typography-caption,
.g-main .header-section .mud-typography-caption { font-size: .85rem; }

.g-main .page-header .mud-button-root + .mud-button-root,
.g-main .header-section .mud-button-root + .mud-button-root { margin-left: 8px; }

/* Tabelas legadas do admin: mantém o padrão global */
.g-main .admin-table .mud-table-head { background: transparent !important; }
.g-main .admin-table th { font-size: .72rem !important; letter-spacing: .7px; }

/* Cards de seção do aluno (amc-*) */
.g-main .amc-dashboard { padding: 0; min-height: 0; background: transparent; }

.g-main .amc-section-card,
.g-main .amc-stat-card {
    border-radius: var(--g-radius-lg);
    box-shadow: var(--g-shadow-sm);
}

.g-main .amc-section-title {
    color: var(--g-text) !important;
    font-size: 1.02rem !important;
    font-weight: 700 !important;
}

.g-main .amc-section-title .mud-icon-root { color: var(--g-accent) !important; }

.g-main .amc-stat-card:hover {
    transform: translateY(-2px);
    border-color: rgba(var(--g-accent-rgb), .4);
    box-shadow: var(--g-shadow);
}

.g-main .amc-stat-card .progress-bar .fill { background: var(--g-accent-gradient); }

.g-main .amc-quick-action {
    border: 1px solid var(--g-border);
    transition: transform .15s ease, border-color .15s ease, background-color .15s ease;
}

.g-main .amc-quick-action:hover { transform: translateY(-2px); border-color: rgba(var(--g-accent-rgb), .5); background: var(--g-accent-soft); }

/* Imagens quebradas não exibem o texto alternativo por cima do layout */
.g-main img:not([src]),
.g-main img[src=""] { visibility: hidden; }

/* Componente PageHeader */
.g-pagehead {
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    flex-wrap: wrap;
    padding: 20px 24px;
    margin-bottom: 20px;
    border-radius: var(--g-radius-lg);
    background:
        radial-gradient(110% 160% at 100% 0%, rgba(var(--g-accent-rgb), .13) 0%, transparent 55%),
        var(--g-surface);
    border: 1px solid var(--g-border);
}

.g-pagehead-main { display: flex; align-items: center; gap: 14px; min-width: 0; }

.g-pagehead-icon {
    width: 46px;
    height: 46px;
    border-radius: 13px;
    display: grid;
    place-items: center;
    flex-shrink: 0;
    background: var(--g-accent-soft);
    color: var(--g-accent);
}

.g-pagehead-title {
    margin: 0;
    font-size: clamp(1.25rem, 2.2vw, 1.55rem);
    font-weight: 800;
    letter-spacing: -.02em;
    line-height: 1.2;
    color: var(--g-text);
}

.g-pagehead-sub { margin: 3px 0 0; color: var(--g-text-2); font-size: .9rem; }
.g-pagehead-actions { display: flex; gap: 8px; flex-wrap: wrap; }

@media (max-width: 599.98px) {
    .g-pagehead { padding: 16px; }
    .g-pagehead-actions { width: 100%; }
    .g-pagehead-actions > * { flex: 1 1 auto; }
}

/* Celular: painel do aluno mais compacto */
@media (max-width: 599.98px) {
    .g-main .amc-stat-cards { grid-template-columns: repeat(2, 1fr); gap: 12px; }
    .g-main .amc-stat-card { padding: 16px; min-height: 0; }
    .g-main .amc-stat-card .value { font-size: 1.45rem; }
    .g-main .amc-stat-card .icon-badge,
    .g-main .home-trofeu { width: 40px; height: 40px; top: 10px; right: 10px; }
    .g-main .amc-stat-card .subtitle { max-width: 100% !important; }
    .g-main .amc-quick-actions { grid-template-columns: repeat(2, 1fr); gap: 10px; }
    .g-main .amc-quick-action { padding: 14px 10px; }
    .g-main .amc-section-card { padding: 16px; }
    .g-main .plano-tabs { overflow-x: auto; scrollbar-width: none; padding: 0 12px; }
    .g-main .plano-tab { white-space: nowrap; padding: 12px 10px; }
    .g-hero-actions { width: 100%; }
    .g-hero-actions > * { flex: 1 1 auto; }
}