/* Base visual mínima e responsiva (RNF-001). Tokens em :root.
   Cores da organização (primária, secundária, destaque) chegam por variáveis CSS geradas no
   base.html (ADR-018 §8); cores de status de aula são fixas (DF-107). */
:root {
  --bg-light: #f7f7f8;          /* fundos da organização (DF-135); sobrescritos no base.html */
  --bg-dark: #16181c;
  --color-bg: var(--bg-light);
  --color-link: var(--color-primary);
  --color-surface: #ffffff;
  --color-text: #1d1d1f;
  --color-muted: #5f6368;
  --color-border: #e2e2e6;
  --color-primary: #2f5d8a;    /* padrão; sobrescrita pela organização */
  --color-secondary: #3c4657;  /* barra de navegação */
  --color-accent: #8a3b12;     /* realces */
  --color-on-brand: #ffffff;   /* texto sobre as cores da organização (contraste >= 4,5:1) */
  --sidebar-width: 232px;
  --color-success: #2e7d4f;
  --color-warning: #9a6700;
  --color-error: #b3261e;
  --radius: 8px;
  --space: 16px;
  --font: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

/* Modo de cores (DF-134): escuro fixo, ou do sistema quando o aparelho estiver no escuro.
   O texto da página no escuro (#f1f1f3) é a referência da validação do fundo escuro. */
:root[data-theme="dark"] {
  --color-bg: var(--bg-dark);
  --color-surface: #1f2228;
  --color-text: #f1f1f3;
  --color-muted: #b3b7bf;
  --color-border: #343841;
  --color-link: color-mix(in srgb, var(--color-primary) 35%, #ffffff);
}
@media (prefers-color-scheme: dark) {
  :root[data-theme="system"] {
  --color-bg: var(--bg-dark);
  --color-surface: #1f2228;
  --color-text: #f1f1f3;
  --color-muted: #b3b7bf;
  --color-border: #343841;
  --color-link: color-mix(in srgb, var(--color-primary) 35%, #ffffff);
  }
}

*, *::before, *::after { box-sizing: border-box; }

body {
  margin: 0;
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.5;
  color: var(--color-text);
  background: var(--color-bg);
}

a { color: var(--color-link); }

.container { width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 var(--space); }

.skip-link { position: absolute; left: -9999px; }
.skip-link:focus { left: var(--space); top: var(--space); background: var(--color-surface); padding: 8px; }

/* Navegação: mesmo conteúdo, dois layouts (DF-94) */
.navbar { background: var(--color-secondary); color: var(--color-on-brand); }
.navbar a, .navbar .link-button { color: var(--color-on-brand); }
.navbar__inner { display: flex; align-items: center; gap: var(--space); min-height: 56px; flex-wrap: wrap; }
.brand { display: inline-flex; align-items: center; gap: 8px; font-weight: 700; text-decoration: none; }
.brand__logo:empty { display: none; }
.nav { display: flex; gap: 4px; flex-wrap: wrap; flex: 1; }
.nav a { padding: 6px 10px; border-radius: var(--radius); text-decoration: none; }
.nav a:hover { text-decoration: underline; }
.nav a.is-active { background: var(--color-accent); }
.navbar__user { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; font-size: 14px; }
.navbar__agenda { font-weight: 600; }
.navbar__toggle { display: none; background: none; border: 1px solid var(--color-on-brand); color: var(--color-on-brand); border-radius: var(--radius); padding: 6px 12px; font: inherit; cursor: pointer; }

.layout-sidebar .navbar--sidebar { position: fixed; top: 0; bottom: 0; left: 0; width: var(--sidebar-width); overflow-y: auto; }
.layout-sidebar .navbar--sidebar .navbar__inner { flex-direction: column; align-items: stretch; padding: var(--space); min-height: 100%; }
.layout-sidebar .navbar--sidebar .nav { flex-direction: column; flex: 1; }
.layout-sidebar .navbar--sidebar .navbar__user { flex-direction: column; align-items: flex-start; }
.layout-sidebar .page { margin-left: var(--sidebar-width); }

@media (max-width: 760px) {
  .navbar__toggle { display: inline-block; }
  .navbar .nav { display: none; flex-basis: 100%; flex-direction: column; }
  .navbar .nav.is-open { display: flex; }
  .layout-sidebar .navbar--sidebar { position: static; width: auto; }
  .layout-sidebar .navbar--sidebar .navbar__inner { flex-direction: row; flex-wrap: wrap; align-items: center; min-height: 56px; }
  .layout-sidebar .navbar--sidebar .navbar__user { flex-direction: row; }
  .layout-sidebar .page { margin-left: 0; }
}

.main { padding-top: 24px; padding-bottom: 48px; }

.messages { list-style: none; padding: 0; margin: 0 0 var(--space); }
.message { padding: 12px var(--space); border-radius: var(--radius); margin-bottom: 8px; background: var(--color-surface); border-left: 4px solid var(--color-primary); }
.message--success { border-left-color: var(--color-success); }
.message--warning { border-left-color: var(--color-warning); }
.message--error { border-left-color: var(--color-error); }

.footer { color: var(--color-muted); font-size: 14px; padding: var(--space) 0; }

.inline-form { display: inline; margin: 0; }
.link-button { background: none; border: 0; padding: 0; color: var(--color-primary); font: inherit; text-decoration: underline; cursor: pointer; }

/* Cartões e formulários */
.card { background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius); padding: 24px; }
.card--narrow { max-width: 420px; margin: 0 auto; }
.card h1 { margin-top: 0; font-size: 1.5rem; }
.muted { color: var(--color-muted); }

.form-field { margin-bottom: var(--space); }
.form-field label { display: block; font-weight: 600; margin-bottom: 4px; }
.form-field input { width: 100%; padding: 10px 12px; font: inherit; border: 1px solid var(--color-border); border-radius: var(--radius); background: var(--color-surface); color: var(--color-text); }
.form-field input:focus { outline: 2px solid var(--color-primary); outline-offset: 1px; }
.form-help { font-size: 14px; color: var(--color-muted); margin-top: 4px; }
.form-help ul { margin: 4px 0 0; padding-left: 20px; }
.errorlist { list-style: none; padding: 0; margin: 4px 0 0; color: var(--color-error); font-size: 14px; }
.form-errors { padding: 12px var(--space); border-radius: var(--radius); border-left: 4px solid var(--color-error); background: var(--color-surface); margin-bottom: var(--space); }

.button { display: inline-block; padding: 10px 18px; font: inherit; font-weight: 600; border-radius: var(--radius); border: 1px solid var(--color-primary); background: var(--color-primary); color: var(--color-on-brand); cursor: pointer; text-decoration: none; }
.button--block { width: 100%; }
.form-links { margin-top: var(--space); font-size: 14px; }

.grid { display: grid; gap: var(--space); grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); }

/* Listas, tabelas e detalhes (Fase 2) */
.page-header { display: flex; align-items: center; justify-content: space-between; gap: var(--space); flex-wrap: wrap; margin-bottom: var(--space); }
.page-header h1, .page-header h2 { margin: 0; }
.card + .card { margin-top: var(--space); }
.card--form { max-width: 640px; }
.card h2 { font-size: 1.15rem; margin-top: 0; }
.button--secondary { background: var(--color-surface); color: var(--color-primary); }

.filters { display: flex; flex-wrap: wrap; gap: 12px; align-items: flex-end; margin-bottom: var(--space); }
.filters .form-field { margin: 0; min-width: 180px; flex: 1; }
.filters__actions { display: flex; gap: 12px; align-items: center; }
.form-field select, .form-field textarea, .inline-fields select, .inline-fields input { width: 100%; padding: 10px 12px; font: inherit; border: 1px solid var(--color-border); border-radius: var(--radius); background: var(--color-surface); color: var(--color-text); }
.form-field input[type="checkbox"] { width: auto; }
.inline-fields { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; margin-top: var(--space); }
.inline-fields select, .inline-fields input { width: auto; max-width: 100%; }

.table-wrap { overflow-x: auto; background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius); }
.table { width: 100%; border-collapse: collapse; }
.table th, .table td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--color-border); }
.table th { font-size: 14px; color: var(--color-muted); font-weight: 600; }
.pagination { display: flex; gap: var(--space); align-items: center; margin-top: var(--space); }

.badge { display: inline-block; font-size: 12px; font-weight: 600; padding: 2px 8px; border-radius: 999px; background: var(--color-bg); border: 1px solid var(--color-border); vertical-align: middle; }
.badge--active { color: var(--color-success); border-color: var(--color-success); }
.badge--paused { color: var(--color-warning); border-color: var(--color-warning); }
.badge--inactive { color: var(--color-muted); }

.data-list { display: grid; grid-template-columns: max-content 1fr; gap: 6px 16px; margin: 0; }
.data-list dt { color: var(--color-muted); }
.data-list dd { margin: 0; }
@media (max-width: 520px) { .data-list { grid-template-columns: 1fr; } .data-list dd { margin-bottom: 8px; } }

.item-list { list-style: none; padding: 0; margin: 0; }
.item-list li { display: flex; justify-content: space-between; gap: var(--space); flex-wrap: wrap; padding: 10px 0; border-bottom: 1px solid var(--color-border); }
.item-list li.is-inactive { color: var(--color-muted); }
.actions { display: flex; gap: 12px; flex-wrap: wrap; align-items: center; }
a.card { display: block; text-decoration: none; color: inherit; }

/* Disponibilidade (Fase 3) */
.inline-fields--compact { margin-top: 0; }
.radio-list, .form-field ul { list-style: none; padding: 0; margin: 0; display: flex; gap: var(--space); flex-wrap: wrap; }
.form-field ul label { font-weight: normal; display: inline-flex; gap: 6px; align-items: center; }
.form-field input[type="radio"] { width: auto; }
.week-grid { display: grid; gap: 12px; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); }
.week-grid .card + .card { margin-top: 0; }
.day-card { padding: 16px; }
.day-card h2 { font-size: 1rem; text-transform: capitalize; }
.slot-list { list-style: none; padding: 0; margin: 0; display: grid; gap: 6px; }
.slot-list li { padding: 6px 8px; border: 1px solid var(--color-border); border-radius: var(--radius); text-align: center; font-variant-numeric: tabular-nums; }

/* Agenda — grade própria (Fase 4, ADR-011) */
:root {
  --ev-scheduled: #2f5d8a;
  --ev-confirmed: #2e7d4f;
  --ev-completed: #5b6b7a;
  --ev-no_show: #b3261e;
  --ev-cancelled: #9aa0a6;
  --ev-block: #6b6b6b;
  --ev-free: #c7dcef;
}
.small { font-size: 13px; }
.hint { background: var(--color-bg); border: 1px solid var(--color-border); border-radius: var(--radius); padding: 10px 12px; margin-bottom: var(--space); font-size: 14px; }
.actions--spaced { margin-top: var(--space); }
.agenda-toolbar { display: flex; justify-content: space-between; align-items: center; gap: var(--space); flex-wrap: wrap; margin-bottom: 12px; }
.agenda-period { margin-left: 8px; text-transform: capitalize; }
.segmented { display: inline-flex; border: 1px solid var(--color-border); border-radius: var(--radius); overflow: hidden; }
.segmented a { padding: 6px 14px; text-decoration: none; color: var(--color-text); background: var(--color-surface); }
.segmented a.is-current { background: var(--color-primary); color: var(--color-on-brand); }
.status-filter { border: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 10px; }
.status-filter legend { font-weight: 600; margin-bottom: 4px; }
.status-filter label, .filters__actions label { font-weight: normal; display: inline-flex; gap: 4px; align-items: center; }
.status-filter input, .filters__actions input[type="checkbox"] { width: auto; }
.legend { font-size: 13px; display: flex; flex-wrap: wrap; gap: 4px 12px; align-items: center; }
.ev-dot { display: inline-block; width: 10px; height: 10px; border-radius: 2px; margin-right: 2px; background: var(--ev-scheduled); }
.ev-dot--confirmed { background: var(--ev-confirmed); } .ev-dot--completed { background: var(--ev-completed); }
.ev-dot--no_show { background: var(--ev-no_show); } .ev-dot--cancelled { background: var(--ev-cancelled); }
.ev-dot--block { background: var(--ev-block); } .ev-dot--free { background: var(--ev-free); }

.time-grid { display: grid; grid-template-columns: 56px repeat(var(--days), minmax(110px, 1fr)); background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius); overflow-x: auto; }
.time-grid__hours, .time-grid__col { display: grid; grid-template-rows: 36px calc(var(--hours) * 48px); }
.time-grid__hours { grid-template-rows: 36px repeat(var(--hours), 48px); font-size: 12px; color: var(--color-muted); }
.time-grid__hour { border-top: 1px solid var(--color-border); padding: 2px 4px; }
.time-grid__head { display: flex; align-items: center; justify-content: center; font-size: 14px; font-weight: 600; text-decoration: none; color: var(--color-text); border-left: 1px solid var(--color-border); text-transform: capitalize; }
.time-grid__col.is-today .time-grid__head { color: var(--color-primary); }
.time-grid__col.is-today .time-grid__body { background: color-mix(in srgb, var(--color-primary) 5%, transparent); }
.time-grid__body { position: relative; border-left: 1px solid var(--color-border); background-image: linear-gradient(var(--color-border) 1px, transparent 1px); background-size: 100% 48px; }
.ev { position: absolute; left: calc(2px + (100% - 4px) * var(--lane) / var(--lanes)); width: calc((100% - 4px) / var(--lanes) - 2px); overflow: hidden; border-radius: 6px; padding: 2px 6px; font-size: 12px; line-height: 1.25; color: #fff; background: var(--ev-scheduled); text-decoration: none; border: 1px solid rgba(0,0,0,.08); }
.ev--confirmed { background: var(--ev-confirmed); } .ev--completed { background: var(--ev-completed); }
.ev--no_show { background: var(--ev-no_show); } .ev--cancelled { background: var(--ev-cancelled); text-decoration: line-through; }
.ev--block { background: repeating-linear-gradient(45deg, var(--ev-block), var(--ev-block) 6px, #7d7d7d 6px, #7d7d7d 12px); }
.ev--free_slot { background: var(--ev-free); color: var(--color-text); border-style: dashed; }
.ev__meta { display: block; opacity: .9; }
.now-line { position: absolute; left: 0; right: 0; height: 2px; background: var(--color-error); z-index: 2; }
.now-line::before { content: ""; position: absolute; left: -4px; top: -3px; width: 8px; height: 8px; border-radius: 50%; background: var(--color-error); }
.badge.ev--scheduled, .badge.ev--confirmed, .badge.ev--completed, .badge.ev--no_show, .badge.ev--cancelled { color: #fff; border-color: transparent; }
.badge.ev--scheduled { background: var(--ev-scheduled); } .badge.ev--confirmed { background: var(--ev-confirmed); }
.badge.ev--completed { background: var(--ev-completed); } .badge.ev--no_show { background: var(--ev-no_show); }
.badge.ev--cancelled { background: var(--ev-cancelled); text-decoration: none; }

.agenda-list { display: none; }
.agenda-list .day-card + .day-card { margin-top: 8px; }
.agenda-list .day-card.is-today { border-color: var(--color-primary); }
.chip { display: block; padding: 6px 8px; margin: 4px 0; border-radius: 6px; border-left: 4px solid var(--ev-scheduled); background: var(--color-bg); color: var(--color-text); text-decoration: none; font-size: 13px; }
.chip.ev--confirmed { border-left-color: var(--ev-confirmed); } .chip.ev--completed { border-left-color: var(--ev-completed); }
.chip.ev--no_show { border-left-color: var(--ev-no_show); } .chip.ev--cancelled { border-left-color: var(--ev-cancelled); text-decoration: line-through; }
.chip.ev--block { border-left-color: var(--ev-block); } .chip.ev--free_slot { border-left-color: var(--ev-free); border-style: dashed; }
.chip__meta { color: var(--color-muted); }

.month-grid { background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius); overflow: hidden; }
.month-head, .month-week { display: grid; grid-template-columns: repeat(7, minmax(0, 1fr)); }
.month-head span { padding: 6px; font-size: 13px; font-weight: 600; color: var(--color-muted); text-align: center; }
.month-cell { min-height: 96px; border-top: 1px solid var(--color-border); border-left: 1px solid var(--color-border); padding: 4px; overflow: hidden; }
.month-cell:first-child { border-left: 0; }
.month-cell.is-outside { background: var(--color-bg); color: var(--color-muted); }
.month-cell.is-today .month-day { background: var(--color-accent); color: var(--color-on-brand); border-radius: 999px; padding: 0 6px; }
.month-day { font-size: 13px; font-weight: 600; text-decoration: none; color: inherit; }
.month-cell .chip { font-size: 11px; padding: 2px 4px; margin: 2px 0; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

@media (max-width: 720px) {
  .time-grid { display: none; }
  .agenda-list { display: block; }
  .month-cell { min-height: 64px; }
  .month-cell .chip { display: none; }
  .month-cell .chip:first-of-type { display: block; }
}

/* Ficha do aluno */
.stats { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 12px; margin: 12px 0 var(--space); }
.stat { border: 1px solid var(--color-border); border-radius: var(--radius); padding: 10px 12px; display: flex; flex-direction: column; gap: 2px; }
.stat__value { font-size: 1.5rem; font-weight: 700; font-variant-numeric: tabular-nums; }
.stat__label { font-size: 13px; color: var(--color-muted); }
.stat__detail { font-size: 12px; color: var(--color-muted); }
.card h3 { font-size: 1rem; margin: var(--space) 0 8px; }

/* Configurações (Fase 5.5) */
.swatch { display: inline-block; width: 1.2em; height: 1.2em; border-radius: 4px; vertical-align: middle; border: 1px solid var(--color-border); }
.form-field input[type="color"] { width: 64px; height: 40px; padding: 2px; }
.login-brand { text-align: center; margin-bottom: var(--space); }
.login-brand__logo:empty { display: none; }
.login-brand__name { font-size: 1.5rem; font-weight: 700; margin: 0; }
.login-brand__musag { color: var(--color-muted); font-size: 14px; margin: 0; }

/* Área do Aluno (Fase 8) — responsiva */
.portal-lesson + .portal-lesson { margin-top: 12px; }
.portal-lesson__head { display: flex; justify-content: space-between; gap: 8px; flex-wrap: wrap; align-items: center; }
.portal-lesson .actions .button, .portal-lesson .actions .inline-form { min-height: 44px; }

/* Assistente (Fase 10) */
.ai-chat { display: flex; flex-direction: column; gap: .5rem; margin-bottom: var(--space); }
.ai-chat__msg { border: 1px solid var(--color-border); border-radius: 8px; padding: .5rem .75rem; }
.ai-chat__msg p { margin: .25rem 0 0; }
.ai-chat__msg--assistant { border-left: 4px solid var(--color-primary); }
.ai-chat__tool { font-size: .85rem; margin: 0; }