:root {
  color-scheme: light;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;

  /* Primitivos */
  --color-neutral-0: #ffffff;
  --color-neutral-25: #f8fafb;
  --color-neutral-50: #f4f6f8;
  --color-neutral-100: #eef2f4;
  --color-neutral-150: #edf1f3;
  --color-neutral-200: #dfe5e9;
  --color-neutral-600: #63717c;
  --color-neutral-900: #16212a;
  --color-brand-50: #eef9f5;
  --color-brand-100: #e9f6f1;
  --color-brand-150: #e7f3f0;
  --color-brand-300: #91c9ba;
  --color-brand-700: #146b5d;
  --color-brand-800: #0f5b50;
  --color-brand-900: #0e5147;
  --color-danger-50: #fff5f5;
  --color-danger-100: #faecec;
  --color-danger-300: #e2b5b5;
  --color-danger-700: #a23030;
  --color-danger-800: #8e2929;
  --color-warning-100: #fff4dc;
  --color-warning-800: #7a4e0f;
  --color-info-100: #eaf2ff;
  --color-info-800: #2f5d8c;

  --font-xs: .75rem;
  --font-sm: .8125rem;
  --font-md: .875rem;
  --font-lg: 1.125rem;
  --font-xl: 1.25rem;
  --font-2xl: 1.625rem;
  --font-3xl: 1.875rem;

  --space-1: .25rem;
  --space-2: .5rem;
  --space-3: .75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-7: 1.75rem;
  --space-8: 2rem;
  --space-12: 3rem;

  --radius-sm: .5rem;
  --radius-md: .625rem;
  --radius-lg: .75rem;
  --radius-xl: 1.125rem;
  --radius-2xl: 1.25rem;
  --radius-pill: 999px;
  --touch-min: 2.75rem;

  /* Semânticos */
  --surface-page: var(--color-neutral-50);
  --surface-card: var(--color-neutral-0);
  --surface-subtle: var(--color-neutral-25);
  --text-primary: var(--color-neutral-900);
  --text-muted: var(--color-neutral-600);
  --border-default: var(--color-neutral-200);
  --border-soft: var(--color-neutral-150);
  --action-primary: var(--color-brand-700);
  --action-primary-hover: var(--color-brand-900);
  --action-danger: var(--color-danger-700);
  --focus-ring: rgb(20 107 93 / 16%);
  --shadow-card: 0 12px 40px rgb(22 33 42 / 6%);
  --text-eyebrow: var(--font-xs);
  --text-label: var(--font-md);
  --text-body: var(--font-md);
  --text-card-value: var(--font-lg);
  --text-page-title: var(--font-3xl);
  --text-section-title: var(--font-2xl);
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
body { margin: 0; background: var(--surface-page); color: var(--text-primary); min-height: 100vh; }
button, input, select, textarea { font: inherit; }
button { cursor: pointer; min-height: var(--touch-min); }
button:disabled { cursor: wait; opacity: .55; }
button:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible { outline: 3px solid var(--focus-ring); outline-offset: 2px; }
.page-shell { width: min(1320px, calc(100% - 32px)); margin: 0 auto; padding: 1.5rem 0; }
.auth-layout { min-height: calc(100vh - 96px); display: grid; place-items: center; align-content: center; gap: var(--space-7); }
.brand-block { display: flex; align-items: center; gap: var(--space-3); }
.brand-block strong { display: block; font-size: var(--font-xl); letter-spacing: .04em; }
.brand-block small { color: var(--text-muted); }
.brand-mark { width: var(--touch-min); height: var(--touch-min); border-radius: var(--radius-lg); display: grid; place-items: center; background: var(--action-primary); color: var(--color-neutral-0); font-weight: 800; font-size: 1.375rem; }
.auth-card, .welcome-card, .conference-card, .summary-grid article, .operational-grid article { background: var(--surface-card); border: 1px solid var(--border-default); box-shadow: var(--shadow-card); }
.auth-card { width: min(440px, 100%); padding: var(--space-8); border-radius: var(--radius-2xl); }
.eyebrow { font-size: var(--text-eyebrow); font-weight: 800; letter-spacing: .12em; color: var(--action-primary); }
h1, h2, p { margin-top: 0; }
.auth-card h1 { margin: .625rem 0 var(--space-2); font-size: var(--text-page-title); }
.auth-card p { color: var(--text-muted); margin-bottom: 1.625rem; }
.auth-form { display: grid; gap: var(--space-4); }
.auth-form label { display: grid; gap: .4375rem; font-weight: 650; font-size: var(--text-label); }
.auth-form input[type="email"], .auth-form input[type="password"], .conference-tools input, .conference-tools select, .decision-field textarea { width: 100%; border: 1px solid var(--border-default); border-radius: var(--radius-md); padding: var(--space-3) .8125rem; outline: none; background: var(--surface-card); color: var(--text-primary); }
.auth-form input:focus, .conference-tools input:focus, .conference-tools select:focus, .decision-field textarea:focus { border-color: var(--action-primary); box-shadow: 0 0 0 3px var(--focus-ring); }
.remember-row { grid-template-columns: auto 1fr; align-items: center; font-weight: 500 !important; color: var(--text-muted); }
.auth-form button, .button-primary, .button-danger { border: 0; border-radius: var(--radius-md); padding: .8125rem 1.125rem; color: var(--color-neutral-0); font-weight: 750; }
.auth-form button, .button-primary { background: var(--action-primary); }
.auth-form button:hover, .button-primary:hover { background: var(--action-primary-hover); }
.button-danger { background: var(--action-danger); }
.feedback { padding: .6875rem .8125rem; border-radius: .5625rem; margin: 0 0 var(--space-4); font-size: var(--text-body); background: var(--color-neutral-100); }
.feedback[data-type="error"] { background: var(--color-danger-100); color: var(--color-danger-700); }
.feedback[data-type="loading"] { color: var(--text-muted); }
.feedback[data-type="success"] { background: var(--color-brand-100); color: var(--color-brand-900); }
.app-layout { display: grid; gap: .75rem; }
.app-header { display: flex; justify-content: space-between; align-items: center; gap: var(--space-4); }
.app-header h1 { margin: .3125rem 0 0; }
.button-secondary { border: 1px solid var(--border-default); background: var(--surface-card); border-radius: .5625rem; padding: .625rem .875rem; color: var(--text-primary); }
.welcome-card { border-radius: var(--radius-lg); padding: .875rem 1rem; display: flex; justify-content: space-between; gap: var(--space-4); align-items: center; }
.welcome-card h2 { font-size: var(--font-xl); margin: .25rem 0 .125rem; }
.welcome-card p { color: var(--text-muted); margin: 0; }
.status-chip { background: var(--color-brand-100); color: var(--color-brand-900); padding: var(--space-2) var(--space-3); border-radius: var(--radius-pill); font-weight: 700; font-size: var(--font-sm); }
.summary-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: .5rem; }
.summary-grid article, .operational-grid article { padding: .625rem .75rem; border-radius: var(--radius-md); min-height: 3.75rem; }
.summary-grid span, .operational-grid span { display: block; color: var(--text-muted); font-size: var(--font-xs); margin-bottom: .25rem; }
.summary-grid strong { font-size: var(--font-md); line-height: 1.25; }
.operational-grid strong { font-size: 1.25rem; line-height: 1; }
.conference-card { border-radius: var(--radius-lg); padding: 1rem; overflow: hidden; }
.section-heading { display: flex; justify-content: space-between; align-items: flex-start; gap: var(--space-4); margin-bottom: .75rem; }
.section-heading h2 { margin: .25rem 0 .125rem; font-size: var(--font-xl); }
.section-heading p { color: var(--text-muted); margin: 0; max-width: 58rem; font-size: var(--font-sm); }
.operational-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: .5rem; margin: .75rem 0; }
.conference-tools { display: grid; grid-template-columns: minmax(240px, 1.5fr) minmax(220px, .8fr) auto; gap: .625rem; align-items: end; margin: .75rem 0; }
.conference-tools label { display: grid; gap: .375rem; font-size: var(--font-sm); font-weight: 700; color: var(--text-muted); }
.table-wrap { width: 100%; overflow-x: auto; border: 1px solid var(--border-default); border-radius: var(--radius-lg); -webkit-overflow-scrolling: touch; }
.conference-table { width: 100%; min-width: 64rem; border-collapse: collapse; background: var(--surface-card); }
.conference-table th { text-align: left; font-size: .6875rem; letter-spacing: .04em; color: var(--text-muted); background: var(--surface-subtle); padding: .5rem .5625rem; border-bottom: 1px solid var(--border-default); white-space: nowrap; }
.conference-table td { padding: .5rem .5625rem; border-bottom: 1px solid var(--border-soft); vertical-align: top; font-size: .78125rem; line-height: 1.25; }
.conference-table tbody tr:last-child td { border-bottom: 0; }
.conference-table td strong { display: block; font-weight: 750; }
.conference-table td small { display: block; color: var(--text-muted); margin-top: .125rem; font-size: .6875rem; }
.badge { display: inline-flex; align-items: center; max-width: 13.75rem; padding: .25rem .4375rem; border-radius: var(--radius-pill); font-size: .6875rem; line-height: 1.15; font-weight: 750; white-space: normal; }
.badge-success { background: var(--color-brand-100); color: var(--color-brand-900); }
.badge-danger { background: var(--color-danger-100); color: var(--color-danger-800); }
.badge-warning { background: var(--color-warning-100); color: var(--color-warning-800); }
.badge-primary { background: var(--color-brand-150); color: var(--color-brand-800); }
.badge-muted { background: var(--color-neutral-100); color: var(--text-muted); }
.badge-info { background: var(--color-info-100); color: var(--color-info-800); }
.conference-table tbody tr:nth-child(even) { background: var(--color-neutral-25); }
.conference-table tbody tr:hover { background: var(--color-brand-50); }

.pagination-bar { display: grid; grid-template-columns: minmax(150px, auto) auto 1fr; gap: .75rem; align-items: center; margin-top: .75rem; padding-top: .75rem; border-top: 1px solid var(--border-soft); }
.pagination-info { display: flex; flex-direction: column; gap: .125rem; font-size: var(--font-xs); color: var(--text-muted); }
.pagination-info strong { color: var(--text-primary); font-size: var(--font-sm); }
.page-size-control { display: flex; align-items: center; gap: .375rem; font-size: var(--font-xs); color: var(--text-muted); }
.page-size-control select { min-height: 2rem; border: 1px solid var(--border-default); border-radius: var(--radius-sm); background: var(--surface-card); padding: .25rem .5rem; color: var(--text-primary); }
.pagination-actions { display: flex; justify-content: flex-end; align-items: center; gap: .375rem; }
.pagination-pages { display: flex; align-items: center; gap: .25rem; }
.pagination-page, .pagination-nav { min-height: 2rem; }
.pagination-page { min-width: 2rem; border: 1px solid var(--border-default); border-radius: var(--radius-sm); background: var(--surface-card); color: var(--text-primary); font-size: var(--font-xs); font-weight: 700; padding: .25rem .5rem; }
.pagination-page.is-active { background: var(--action-primary); border-color: var(--action-primary); color: var(--color-neutral-0); }
.pagination-ellipsis { color: var(--text-muted); padding: 0 .125rem; }
.row-actions { display: flex; flex-wrap: wrap; gap: .4375rem; }
.button-small { border-radius: var(--radius-sm); padding: .375rem .5rem; min-height: 2rem; font-size: .6875rem; font-weight: 800; }
.button-approve { border: 1px solid var(--color-brand-300); background: var(--color-brand-50); color: var(--color-brand-900); }
.button-reject { border: 1px solid var(--color-danger-300); background: var(--color-danger-50); color: var(--color-danger-800); }
.muted-text { color: var(--text-muted); }
.empty-cell { color: var(--text-muted); text-align: center; padding: 1.25rem !important; }

.decision-dialog { width: min(34rem, calc(100% - 2rem)); border: 0; border-radius: var(--radius-xl); padding: 0; color: var(--text-primary); box-shadow: 0 24px 80px rgb(22 33 42 / 24%); }
.decision-dialog::backdrop { background: rgb(22 33 42 / 48%); }
.decision-form { display: grid; gap: var(--space-5); padding: var(--space-6); }
.decision-header h2 { margin: .4375rem 0 .375rem; font-size: var(--text-section-title); }
.decision-header p { margin: 0; color: var(--text-muted); }
.decision-field { display: grid; gap: var(--space-2); font-weight: 700; font-size: var(--text-label); }
.decision-field small { color: var(--text-muted); font-weight: 500; }
.decision-field textarea { resize: vertical; min-height: 6.5rem; }
.decision-actions { display: flex; justify-content: flex-end; gap: var(--space-3); }

@media (max-width: 1100px) {
  :root {
    --text-page-title: 1.75rem;
    --text-section-title: 1.5rem;
  }
  .page-shell { padding-top: var(--space-8); padding-bottom: var(--space-8); }
  .conference-card { padding: var(--space-5); }
}

@media (max-width: 900px) {
  .operational-grid { grid-template-columns: repeat(2, 1fr); }
  .conference-tools { grid-template-columns: 1fr; }
  .conference-tools .button-primary { width: 100%; }
  .pagination-bar { grid-template-columns: 1fr auto; }
  .pagination-actions { grid-column: 1 / -1; justify-content: flex-start; flex-wrap: wrap; }
}

@media (max-width: 760px) {
  .page-shell { width: min(100% - 20px, 1320px); padding: var(--space-5) 0; }
  .auth-layout { min-height: calc(100vh - 40px); }
  .auth-card { padding: var(--space-6); }
  .summary-grid, .operational-grid { grid-template-columns: 1fr; }
  .welcome-card, .section-heading { align-items: flex-start; flex-direction: column; }
  .conference-card { padding: var(--space-4); }
  .section-heading > .button-secondary, .app-header > .button-secondary { min-width: var(--touch-min); }
  .decision-actions { flex-direction: column-reverse; }
  .decision-actions button { width: 100%; }
}