/* ==========================================================================
   Arte Mental — Admin / Master polish layer (Sprint 6)
   Carrega DEPOIS de admin-base.css. Refina o look para Linear-like premium.
   Princípios: espaçamento generoso, tipografia refinada, sombras subtis,
   componentes consistentes (toggle, grid, page header, empty state).
   ========================================================================== */

/* --- Tokens extra (extendem tokens.css) -------------------------------- */
:root {
    --am-space-1: .25rem;
    --am-space-2: .5rem;
    --am-space-3: .75rem;
    --am-space-4: 1rem;
    --am-space-5: 1.5rem;
    --am-space-6: 2rem;
    --am-space-7: 3rem;
    --am-space-8: 4rem;

    /* Linear-style shadows (mais discretas + bordas em vez de sombras grossas) */
    --am-shadow-card: 0 1px 0 rgba(42, 21, 24, 0.04), 0 0 0 1px rgba(42, 21, 24, 0.04);
    --am-shadow-card-hover: 0 4px 12px rgba(42, 21, 24, 0.06), 0 0 0 1px rgba(183, 23, 74, 0.10);
    --am-shadow-pop: 0 12px 32px rgba(42, 21, 24, 0.08), 0 0 0 1px rgba(42, 21, 24, 0.04);

    --am-line-soft: #F5E8ED;
    --am-line-strong: #E3CCD3;
    --am-bg-soft: #FBF6F1;
    --am-bg-hover: rgba(183, 23, 74, 0.04);

    --am-text-1: var(--am-ink);      /* primary */
    --am-text-2: var(--am-ink-soft); /* secondary */
    --am-text-3: var(--am-muted);    /* tertiary */

    --am-success: #2E5C20;
    --am-success-soft: #E8F1E6;
    --am-warn: #8C5A11;
    --am-warn-soft: #FFF1DD;
    --am-danger: #8B1226;
    --am-danger-soft: #FDEBEE;
}

/* --- Tipografia refinada ----------------------------------------------- */
body.am-admin, body.am-master {
    font-feature-settings: 'cv11', 'ss03', 'ss04', 'ss05', 'ss07', 'ss08';
    letter-spacing: -0.005em;
}
.am-page__title {
    letter-spacing: -0.02em;
    font-weight: 700;
    color: var(--am-brand);
    font-size: 1.5rem;
    line-height: 1.2;
}
.am-page__intro {
    color: var(--am-text-3);
    font-size: 0.92rem;
    margin-top: .25rem;
    max-width: 56ch;
}
.am-mono { font-family: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, monospace; font-feature-settings: 'tnum'; }
.am-numeric { font-variant-numeric: tabular-nums; }

/* --- Page header padronizado ------------------------------------------ */
.am-page__head {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: var(--am-space-5);
    padding-bottom: var(--am-space-5);
    margin-bottom: var(--am-space-5);
    border-bottom: 1px solid var(--am-line-soft);
}
.am-page__head--noborder { border: 0; padding-bottom: 0; }
.am-page__actions { display: flex; gap: .5rem; flex-wrap: wrap; align-items: center; flex-shrink: 0; }

.am-crumbs {
    display: flex; align-items: center; gap: .4rem;
    color: var(--am-muted); font-size: .8rem;
    margin-bottom: .4rem;
}
.am-crumbs a { color: inherit; transition: color var(--am-dur-fast) var(--am-ease); }
.am-crumbs a:hover { color: var(--am-brand); }
.am-crumbs__sep { opacity: .5; }

/* --- Grid utilities (refinados) ---------------------------------------- */
.am-grid { display: grid; gap: var(--am-space-4); }
.am-grid--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.am-grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.am-grid--4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.am-grid--auto { grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); }
.am-grid--auto-sm { grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); }
.am-grid--auto-lg { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.am-span-2 { grid-column: span 2; }
.am-span-3 { grid-column: span 3; }
.am-span-full { grid-column: 1 / -1; }

@media (max-width: 768px) {
    .am-grid--2, .am-grid--3, .am-grid--4 { grid-template-columns: 1fr; }
    .am-span-2, .am-span-3 { grid-column: auto; }
}

/* --- Card refinado (Linear-like) --------------------------------------- */
.am-card-v2 {
    background: var(--am-bg-elev);
    border-radius: var(--am-radius-md);
    box-shadow: var(--am-shadow-card);
    padding: var(--am-space-4) var(--am-space-5);
    transition: box-shadow var(--am-dur-fast) var(--am-ease), transform var(--am-dur-fast) var(--am-ease);
}
.am-card-v2--compact { padding: var(--am-space-3) var(--am-space-4); }
.am-card-v2--interactive:hover {
    box-shadow: var(--am-shadow-card-hover);
    transform: translateY(-1px);
}
.am-card-v2__head {
    display: flex; align-items: center; justify-content: space-between; gap: .5rem;
    margin-bottom: var(--am-space-4);
}
.am-card-v2__title {
    font-size: 1rem; font-weight: 600; color: var(--am-brand);
    letter-spacing: -0.01em;
}
.am-card-v2__sub { font-size: .82rem; color: var(--am-muted); margin-top: .15rem; }

/* --- Section (group de form ou conteúdo dentro de card) ----------------- */
.am-section-block {
    padding: var(--am-space-4) 0;
    border-bottom: 1px solid var(--am-line-soft);
}
.am-section-block:first-child { padding-top: 0; }
.am-section-block:last-child { border-bottom: 0; padding-bottom: 0; }
.am-section-block__head {
    display: flex; align-items: baseline; justify-content: space-between; gap: 1rem;
    margin-bottom: var(--am-space-3);
}
.am-section-block__title {
    font-size: .92rem; font-weight: 600; color: var(--am-brand);
    letter-spacing: -0.01em;
}
.am-section-block__desc {
    font-size: .8rem; color: var(--am-muted);
    margin-top: .15rem; max-width: 70ch;
}

/* --- Method card (sub-card dentro de section) ------------------------- */
.am-method-card {
    border: 1px solid var(--am-line-soft);
    border-radius: var(--am-radius-sm);
    padding: var(--am-space-3) var(--am-space-4);
    background: var(--am-bg-soft);
    transition: border-color var(--am-dur-fast) var(--am-ease), background var(--am-dur-fast) var(--am-ease);
}
.am-method-card:has(.am-toggle__input:checked) {
    border-color: var(--am-brand-tint);
    background: var(--am-bg-elev);
}
.am-method-card__head {
    display: flex; align-items: center; justify-content: space-between; gap: .5rem;
    margin-bottom: var(--am-space-2);
}
.am-method-card__name { font-size: .9rem; font-weight: 600; color: var(--am-ink); }
.am-method-card__hint { font-size: .74rem; color: var(--am-muted); margin-bottom: var(--am-space-2); }

/* --- Toggle switch (replace boolean checkboxes) ------------------------ */
.am-toggle {
    display: inline-flex; align-items: center; gap: .7rem;
    cursor: pointer; user-select: none;
}
.am-toggle__input { position: absolute; opacity: 0; pointer-events: none; }
.am-toggle__track {
    position: relative;
    width: 36px; height: 20px;
    background: var(--am-line-strong);
    border-radius: 999px;
    transition: background var(--am-dur-fast) var(--am-ease);
    flex-shrink: 0;
}
.am-toggle__track::after {
    content: '';
    position: absolute;
    top: 2px; left: 2px;
    width: 16px; height: 16px;
    background: #fff;
    border-radius: 50%;
    box-shadow: 0 1px 3px rgba(0,0,0,0.2);
    transition: transform var(--am-dur-fast) var(--am-ease);
}
.am-toggle__input:checked + .am-toggle__track { background: var(--am-brand); }
.am-toggle__input:checked + .am-toggle__track::after { transform: translateX(16px); }
.am-toggle__input:focus-visible + .am-toggle__track { box-shadow: 0 0 0 3px var(--am-brand-light); }
.am-toggle__label { font-size: .9rem; color: var(--am-ink); }
.am-toggle__hint { display: block; font-size: .78rem; color: var(--am-muted); margin-top: .15rem; }
.am-toggle--row {
    display: flex; align-items: center; justify-content: space-between;
    padding: 0;
    width: 100%;
}
.am-toggle--row .am-toggle__text { flex: 1; padding-right: var(--am-space-3); }
.am-toggle--compact .am-toggle__hint { display: none; }

/* --- Tabs polidos (underline animado) ---------------------------------- */
.am-tabs-v2 {
    display: flex;
    gap: var(--am-space-5);
    border-bottom: 1px solid var(--am-line-soft);
    margin-bottom: var(--am-space-5);
    overflow-x: auto;
}
.am-tabs-v2__item {
    position: relative;
    padding: .8rem 0;
    color: var(--am-muted);
    font-size: .9rem;
    font-weight: 500;
    white-space: nowrap;
    transition: color var(--am-dur-fast) var(--am-ease);
}
.am-tabs-v2__item:hover { color: var(--am-ink); }
.am-tabs-v2__item.is-active {
    color: var(--am-brand);
    font-weight: 600;
}
.am-tabs-v2__item.is-active::after {
    content: '';
    position: absolute;
    left: 0; right: 0; bottom: -1px;
    height: 2px;
    background: var(--am-brand);
    border-radius: 2px 2px 0 0;
}

/* --- KPI cards refinados ---------------------------------------------- */
.am-kpi-v2 {
    background: var(--am-bg-elev);
    border-radius: var(--am-radius-md);
    box-shadow: var(--am-shadow-card);
    padding: var(--am-space-5);
    display: flex;
    flex-direction: column;
    gap: .35rem;
    transition: box-shadow var(--am-dur-fast) var(--am-ease);
}
.am-kpi-v2:hover { box-shadow: var(--am-shadow-card-hover); }
.am-kpi-v2__label {
    color: var(--am-muted);
    font-size: .76rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.08em;
}
.am-kpi-v2__value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--am-ink);
    line-height: 1.1;
    letter-spacing: -0.025em;
    font-variant-numeric: tabular-nums;
}
.am-kpi-v2__trend {
    display: inline-flex; align-items: center; gap: .3rem;
    font-size: .8rem; font-weight: 500;
}
.am-kpi-v2__trend--up { color: var(--am-success); }
.am-kpi-v2__trend--down { color: var(--am-danger); }
.am-kpi-v2__hint { font-size: .8rem; color: var(--am-muted); }

/* --- Inputs polidos --------------------------------------------------- */
.am-field input, .am-field textarea, .am-field select,
.am-form input, .am-form textarea, .am-form select {
    border: 1px solid var(--am-line-strong);
    background: var(--am-bg-elev);
    transition: border-color var(--am-dur-fast) var(--am-ease), box-shadow var(--am-dur-fast) var(--am-ease);
}
.am-field input:hover:not(:focus), .am-field textarea:hover:not(:focus),
.am-form input:hover:not(:focus), .am-form textarea:hover:not(:focus) {
    border-color: var(--am-muted);
}
.am-field input::placeholder,
.am-form input::placeholder,
.am-field textarea::placeholder { color: var(--am-line-strong); }

/* Input com adornments (prefix/suffix) */
.am-input-group {
    display: flex; align-items: stretch;
    border: 1px solid var(--am-line-strong);
    border-radius: var(--am-radius-sm);
    background: var(--am-bg-elev);
    overflow: hidden;
    transition: border-color var(--am-dur-fast) var(--am-ease), box-shadow var(--am-dur-fast) var(--am-ease);
}
.am-input-group:focus-within { border-color: var(--am-brand); box-shadow: 0 0 0 3px var(--am-brand-light); }
.am-input-group input { border: 0 !important; box-shadow: none !important; }
.am-input-group__addon {
    display: inline-flex; align-items: center; padding: 0 .8rem;
    background: var(--am-bg-soft); color: var(--am-muted); font-size: .85rem;
    border-right: 1px solid var(--am-line-soft);
}
.am-input-group__addon--suffix { border-right: 0; border-left: 1px solid var(--am-line-soft); }

/* --- Empty state ------------------------------------------------------ */
.am-empty {
    padding: var(--am-space-7) var(--am-space-5);
    text-align: center;
    color: var(--am-muted);
}
.am-empty__icon {
    display: inline-flex; align-items: center; justify-content: center;
    width: 56px; height: 56px;
    border-radius: 50%;
    background: var(--am-brand-light);
    color: var(--am-brand);
    margin: 0 auto var(--am-space-4);
}
.am-empty__title { font-size: 1.05rem; font-weight: 600; color: var(--am-ink); margin-bottom: .35rem; }
.am-empty__desc { font-size: .9rem; max-width: 42ch; margin: 0 auto var(--am-space-4); }

/* --- Botão refinado --------------------------------------------------- */
.am-btn {
    font-weight: 500;
    letter-spacing: -0.005em;
    border-radius: var(--am-radius-sm);
}
.am-btn--brand {
    box-shadow: 0 1px 2px rgba(183, 23, 74, 0.2);
}
.am-btn--brand:hover {
    transform: none;
    background: #9E1340;
    box-shadow: 0 4px 8px rgba(183, 23, 74, 0.25);
}
.am-btn--outline { border-width: 1px; }
.am-btn--icon {
    width: 32px; height: 32px;
    padding: 0;
    justify-content: center;
    border-radius: var(--am-radius-sm);
}

/* --- Status pill (substituir badges informais) ------------------------ */
.am-pill {
    display: inline-flex; align-items: center; gap: .35rem;
    padding: .25rem .6rem;
    border-radius: 999px;
    font-size: .76rem; font-weight: 500;
    letter-spacing: 0;
    text-transform: none;
}
.am-pill::before { content: ''; width: 6px; height: 6px; border-radius: 50%; background: currentColor; opacity: .7; }
.am-pill--ok    { background: var(--am-success-soft); color: var(--am-success); }
.am-pill--warn  { background: var(--am-warn-soft); color: var(--am-warn); }
.am-pill--danger{ background: var(--am-danger-soft); color: var(--am-danger); }
.am-pill--info  { background: var(--am-brand-light); color: var(--am-brand); }
.am-pill--muted { background: var(--am-line-soft); color: var(--am-muted); }

/* --- Tabela polida ---------------------------------------------------- */
.am-table {
    border-collapse: separate;
    border-spacing: 0;
    background: var(--am-bg-elev);
    border-radius: var(--am-radius-md);
    overflow: hidden;
    box-shadow: var(--am-shadow-card);
}
.am-table thead th {
    background: var(--am-bg-soft);
    color: var(--am-muted);
    font-size: .76rem;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    padding: .65rem .8rem;
    border-bottom: 1px solid var(--am-line-soft);
}
.am-table tbody td {
    padding: .8rem;
    border-bottom: 1px solid var(--am-line-soft);
    color: var(--am-ink);
    font-size: .9rem;
}
.am-table tbody tr:last-child td { border-bottom: 0; }
.am-table tbody tr:hover td { background: var(--am-bg-hover); }
.am-table__actions { white-space: nowrap; text-align: right; }
.am-table__actions .am-btn--sm + .am-btn--sm,
.am-table__actions .am-btn--sm + form,
.am-table__actions form + .am-btn--sm,
.am-table__actions form + form { margin-left: .25rem; }

/* --- Sidebar refinada (subtil) ----------------------------------------- */
.am-sidebar__link {
    transition: background var(--am-dur-fast) var(--am-ease), color var(--am-dur-fast) var(--am-ease);
    border-radius: var(--am-radius-sm);
}
.am-sidebar__link:hover { background: var(--am-bg-hover); color: var(--am-brand); }
.am-sidebar__link.is-active {
    background: var(--am-brand-light);
    color: var(--am-brand);
    font-weight: 600;
}

/* --- Helpers visuais --------------------------------------------------- */
.am-divider { height: 1px; background: var(--am-line-soft); margin: var(--am-space-5) 0; border: 0; }
.am-stack-1 > * + * { margin-top: var(--am-space-1); }
.am-stack-2 > * + * { margin-top: var(--am-space-2); }
.am-stack-3 > * + * { margin-top: var(--am-space-3); }
.am-stack-4 > * + * { margin-top: var(--am-space-4); }
.am-stack-5 > * + * { margin-top: var(--am-space-5); }
.am-flex { display: flex; gap: var(--am-space-3); align-items: center; flex-wrap: wrap; }
.am-flex--between { justify-content: space-between; }
.am-flex--col { flex-direction: column; align-items: stretch; }

.am-text-muted { color: var(--am-muted); }
.am-text-sm { font-size: .82rem; }
.am-text-xs { font-size: .76rem; }
.am-text-strong { font-weight: 600; color: var(--am-ink); }

/* --- Sidebar logo image (admin/master) --------------------------------- */
.am-sidebar__logo { display: block; }
.am-sidebar__logo img { width: 100%; max-width: 170px; height: auto; }