/* Base visual da plataforma: tokens, tipografia e componentes compartilhados.
   Tema segue o sistema operacional e aceita troca manual via data-theme no <html>. */

:root {
  color-scheme: light dark;

  --bg: #f6f7fb;
  --bg-elev: #ffffff;
  --surface: #ffffff;
  --surface-2: #f1f3f9;
  --border: #e2e6ef;
  --border-strong: #cbd2e0;
  --text: #10162b;
  --text-soft: #5a6485;
  --text-faint: #8a93ad;

  --primary: #5b5bd6;
  --primary-hover: #4a4ac4;
  --primary-soft: #ececfd;
  --accent: #0ea5e9;
  --success: #12a374;
  --success-soft: #dff5ec;
  --warn: #d97706;
  --warn-soft: #fdf0dc;
  --danger: #dc2626;
  --danger-soft: #fdeaea;

  --radius: 14px;
  --radius-sm: 9px;
  --radius-lg: 22px;
  --shadow-sm: 0 1px 2px rgba(16, 22, 43, 0.06), 0 1px 3px rgba(16, 22, 43, 0.04);
  --shadow: 0 4px 14px rgba(16, 22, 43, 0.08);
  --shadow-lg: 0 18px 48px rgba(16, 22, 43, 0.16);
  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --mono: ui-monospace, SFMono-Regular, 'SF Mono', Menlo, Consolas, monospace;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0c0f1a;
    --bg-elev: #131829;
    --surface: #151b2e;
    --surface-2: #1b2238;
    --border: #262d45;
    --border-strong: #38415e;
    --text: #eef1f9;
    --text-soft: #a6b0cc;
    --text-faint: #737e9c;
    --primary: #7c7cf0;
    --primary-hover: #8f8ff5;
    --primary-soft: #22254a;
    --success: #2dd4a0;
    --success-soft: #16352c;
    --warn: #f0b355;
    --warn-soft: #3a2c14;
    --danger: #f87171;
    --danger-soft: #3a1c1c;
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.4);
    --shadow: 0 6px 18px rgba(0, 0, 0, 0.45);
    --shadow-lg: 0 20px 50px rgba(0, 0, 0, 0.6);
  }
}

:root[data-theme='light'] {
  color-scheme: light;
  --bg: #f6f7fb; --bg-elev: #ffffff; --surface: #ffffff; --surface-2: #f1f3f9;
  --border: #e2e6ef; --border-strong: #cbd2e0; --text: #10162b; --text-soft: #5a6485;
  --text-faint: #8a93ad; --primary: #5b5bd6; --primary-hover: #4a4ac4; --primary-soft: #ececfd;
  --success: #12a374; --success-soft: #dff5ec; --warn: #d97706; --warn-soft: #fdf0dc;
  --danger: #dc2626; --danger-soft: #fdeaea;
}

:root[data-theme='dark'] {
  color-scheme: dark;
  --bg: #0c0f1a; --bg-elev: #131829; --surface: #151b2e; --surface-2: #1b2238;
  --border: #262d45; --border-strong: #38415e; --text: #eef1f9; --text-soft: #a6b0cc;
  --text-faint: #737e9c; --primary: #7c7cf0; --primary-hover: #8f8ff5; --primary-soft: #22254a;
  --success: #2dd4a0; --success-soft: #16352c; --warn: #f0b355; --warn-soft: #3a2c14;
  --danger: #f87171; --danger-soft: #3a1c1c;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  -webkit-font-smoothing: antialiased;
  line-height: 1.5;
}

h1, h2, h3, h4 { margin: 0; line-height: 1.25; font-weight: 650; letter-spacing: -0.01em; }
p { margin: 0; }
a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ---------- topo ---------- */
.topbar {
  position: sticky; top: 0; z-index: 30;
  display: flex; align-items: center; gap: 16px;
  padding: 12px 22px;
  background: color-mix(in srgb, var(--bg-elev) 88%, transparent);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 15px; color: var(--text); }
.brand:hover { text-decoration: none; }
.brand-mark {
  width: 30px; height: 30px; border-radius: 9px; display: grid; place-items: center;
  background: linear-gradient(135deg, var(--primary), var(--accent)); color: #fff; font-size: 15px;
}
.topbar-spacer { flex: 1; }
.topbar-user { display: flex; align-items: center; gap: 10px; font-size: 13px; color: var(--text-soft); }

/* ---------- botoes ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 7px;
  padding: 9px 15px; border-radius: var(--radius-sm);
  border: 1px solid var(--border-strong); background: var(--surface); color: var(--text);
  font: inherit; font-size: 13.5px; font-weight: 550; cursor: pointer;
  transition: background 0.15s, border-color 0.15s, transform 0.08s, opacity 0.15s;
}
.btn:hover { background: var(--surface-2); }
.btn:active { transform: translateY(1px); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }
.btn-primary { background: var(--primary); border-color: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-hover); }
.btn-ghost { background: transparent; border-color: transparent; color: var(--text-soft); }
.btn-ghost:hover { background: var(--surface-2); color: var(--text); }
.btn-danger { color: var(--danger); border-color: color-mix(in srgb, var(--danger) 40%, var(--border)); background: transparent; }
.btn-danger:hover { background: var(--danger-soft); }
.btn-sm { padding: 5px 10px; font-size: 12.5px; border-radius: 7px; }
.btn-icon { padding: 8px; width: 34px; height: 34px; }

/* ---------- formularios ---------- */
label { display: block; font-size: 12.5px; font-weight: 600; color: var(--text-soft); margin-bottom: 6px; }
input, textarea, select {
  width: 100%; padding: 10px 13px; font: inherit; font-size: 14px;
  border: 1px solid var(--border-strong); border-radius: var(--radius-sm);
  background: var(--surface); color: var(--text); transition: border-color 0.15s, box-shadow 0.15s;
}
input:focus, textarea:focus, select:focus {
  outline: none; border-color: var(--primary);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--primary) 18%, transparent);
}
textarea { resize: vertical; min-height: 90px; font-family: var(--mono); font-size: 12.5px; line-height: 1.5; }
.field { margin-bottom: 14px; }
.hint { font-size: 12px; color: var(--text-faint); margin-top: 5px; }

/* ---------- cartoes ---------- */
.card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 18px; box-shadow: var(--shadow-sm);
}
.card-title { font-size: 15px; font-weight: 650; margin-bottom: 4px; }
.card-sub { font-size: 13px; color: var(--text-soft); }

/* ---------- avisos ---------- */
.alert { padding: 11px 14px; border-radius: var(--radius-sm); font-size: 13.5px; margin-bottom: 14px; border: 1px solid transparent; }
.alert-info { background: var(--primary-soft); color: var(--primary); border-color: color-mix(in srgb, var(--primary) 25%, transparent); }
.alert-success { background: var(--success-soft); color: var(--success); }
.alert-warn { background: var(--warn-soft); color: var(--warn); }
.alert-error { background: var(--danger-soft); color: var(--danger); }

/* ---------- chips ---------- */
.chip {
  display: inline-flex; align-items: center; gap: 5px;
  padding: 3px 9px; border-radius: 999px; font-size: 11.5px; font-weight: 600;
  background: var(--surface-2); color: var(--text-soft); border: 1px solid var(--border);
}
.chip-primary { background: var(--primary-soft); color: var(--primary); border-color: transparent; }
.chip-success { background: var(--success-soft); color: var(--success); border-color: transparent; }
.chip-warn { background: var(--warn-soft); color: var(--warn); border-color: transparent; }
.chip-time { font-family: var(--mono); font-size: 11.5px; font-weight: 600; }

/* ---------- utilitarios ---------- */
.stack { display: flex; flex-direction: column; gap: 12px; }
.row { display: flex; align-items: center; gap: 10px; }
.row-wrap { flex-wrap: wrap; }
.grid { display: grid; gap: 14px; }
.muted { color: var(--text-soft); }
.faint { color: var(--text-faint); }
.small { font-size: 12.5px; }
.empty { padding: 34px 20px; text-align: center; color: var(--text-faint); font-size: 13.5px; }

/* ---------- loader AI (ai-loader) ---------- */
.ai-bloco { display: grid; place-items: center; padding: 38px 20px; }
/* Carregando dentro de uma grade de cartoes, o bloco ocupa a linha inteira. */
.grid > .ai-bloco { grid-column: 1 / -1; }
/* Dentro de botao cheio, a linha na cor primaria sumiria no fundo: vira clara.
   Sao valores literais de proposito — o canvas le a variavel como texto e nao
   resolveria um color-mix(). */
.btn-primary ai-loader { --primary: #ffffff; --accent: #cfd6ff; }
.ai-overlay {
  position: fixed; inset: 0; z-index: 200;
  display: grid; place-items: center;
  background: color-mix(in srgb, var(--bg) 78%, transparent);
  backdrop-filter: blur(6px);
  animation: ai-surgir 0.2s ease-out;
}
@keyframes ai-surgir { from { opacity: 0; } }

.container { max-width: 1080px; margin: 0 auto; padding: 28px 22px 60px; }
.page-title { font-size: 24px; margin-bottom: 6px; }
.page-sub { color: var(--text-soft); font-size: 14px; margin-bottom: 24px; }

@media (max-width: 640px) {
  .container { padding: 20px 14px 44px; }
  .topbar { padding: 10px 14px; }
}
