:root {
  /* tema escuro (padrão) */
  --bg: #0B0E14;
  --panel: #12151C;
  --panel-2: #181C25;
  --border: #262B36;
  --border-strong: #333947;
  --text: #F2F4F8;
  --text-secondary: #C6CBD4;
  --muted: #8B92A0;
  --brand-1: #2F5AFF;
  --brand-2: #22D3FF;
  --brand: linear-gradient(135deg, var(--brand-1), var(--brand-2));
  --brand-solid: #4C7CFF;
  --on-brand: #05060A;
  --green: #35D68A;
  --green-bg: rgba(53, 214, 138, 0.14);
  --red: #FF6B7D;
  --red-bg: rgba(255, 107, 125, 0.14);
  --amber: #FFB020;
  --amber-bg: rgba(255, 176, 32, 0.14);
  --font-sans: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --radius-sm: 8px;
  --radius: 12px;
  --radius-lg: 18px;
  --radius-full: 999px;
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.35);
  --shadow-md: 0 12px 32px rgba(0, 0, 0, 0.45);
}

:root[data-theme="light"] {
  --bg: #F3F5F8;
  --panel: #FFFFFF;
  --panel-2: #F0F2F6;
  --border: #E3E7EE;
  --border-strong: #CBD1DC;
  --text: #0B0F19;
  --text-secondary: #414753;
  --muted: #6B7280;
  --brand-1: #1447E6;
  --brand-2: #12C6FF;
  --brand-solid: #1E51EE;
  --on-brand: #FFFFFF;
  --green: #12894F;
  --green-bg: rgba(18, 137, 79, 0.10);
  --red: #D42A47;
  --red-bg: rgba(212, 42, 71, 0.09);
  --amber: #B9660B;
  --amber-bg: rgba(185, 102, 11, 0.10);
  --shadow-sm: 0 1px 2px rgba(16, 24, 40, 0.06);
  --shadow-md: 0 16px 36px rgba(16, 24, 40, 0.12);
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  -webkit-font-smoothing: antialiased;
  transition: background-color 0.2s ease, color 0.2s ease;
}
.hidden { display: none !important; }
.muted { color: var(--muted); }
code {
  font-family: ui-monospace, monospace;
  background: var(--panel-2);
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 0.85em;
}

/* ---------- THEME TOGGLE ---------- */
.theme-toggle {
  position: fixed;
  top: 16px;
  right: 20px;
  z-index: 200;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
  background: var(--panel);
  border: 1px solid var(--border);
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: var(--shadow-sm);
}
.theme-toggle:hover { color: var(--text); border-color: var(--border-strong); }
.theme-toggle .icon-moon { display: none; }
:root[data-theme="light"] .theme-toggle .icon-sun { display: none; }
:root[data-theme="light"] .theme-toggle .icon-moon { display: block; }

/* ---------- BRAND ---------- */
.brand-mark { flex-shrink: 0; display: block; }
.brand-word {
  font-size: 19px;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--text);
}
.brand-word-lg { font-size: 26px; }
.brand-sep { width: 1px; height: 16px; background: var(--border-strong); }

.login-brand { display: flex; align-items: center; gap: 10px; margin-bottom: 22px; }

/* ---------- LOGIN ---------- */
.login-screen {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background:
    radial-gradient(circle at 15% 10%, rgba(47, 90, 255, 0.10), transparent 45%),
    radial-gradient(circle at 85% 90%, rgba(34, 211, 255, 0.08), transparent 45%),
    var(--bg);
}
.login-card {
  width: 380px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px;
  box-shadow: var(--shadow-md);
}
.board-tag {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--muted);
  text-transform: uppercase;
  margin-bottom: 14px;
}
.login-card h1 { margin: 0 0 4px; font-size: 24px; letter-spacing: -0.01em; }
.login-card p { margin: 0 0 22px; font-size: 14px; }

label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 14px;
}
input, select, textarea {
  width: 100%;
  margin-top: 6px;
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  padding: 10px 12px;
  font-size: 14px;
  font-family: var(--font-sans);
  font-weight: 400;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}
textarea { resize: vertical; font-family: var(--font-sans); }
input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--brand-solid);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--brand-solid) 20%, transparent);
}

.btn {
  border: none;
  border-radius: var(--radius-full);
  padding: 10px 18px;
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
  font-family: var(--font-sans);
  transition: filter 0.15s ease, background-color 0.15s ease, border-color 0.15s ease, color 0.15s ease;
}
.btn-primary { background: var(--brand); color: var(--on-brand); }
.btn-primary:hover { filter: brightness(1.08); }
.btn-secondary { background: var(--panel-2); color: var(--text); border: 1px solid var(--border); }
.btn-secondary:hover { border-color: var(--border-strong); }
.btn-ghost { background: transparent; color: var(--muted); border: 1px solid var(--border); }
.btn-ghost:hover { color: var(--text); border-color: var(--border-strong); }
.btn-block { width: 100%; }
.btn-sm { padding: 7px 12px; font-size: 12px; }
.btn-danger { background: transparent; color: var(--red); border: 1px solid color-mix(in srgb, var(--red) 40%, transparent); }

.error-msg {
  background: var(--red-bg);
  border: 1px solid color-mix(in srgb, var(--red) 35%, transparent);
  color: var(--red);
  padding: 9px 12px;
  border-radius: var(--radius-sm);
  font-size: 13px;
  margin-bottom: 12px;
  font-weight: 500;
}
.hint {
  padding: 9px 12px;
  border-radius: var(--radius-sm);
  font-size: 13px;
  margin-bottom: 12px;
  background: var(--green-bg);
  border: 1px solid color-mix(in srgb, var(--green) 35%, transparent);
  color: var(--green);
  font-weight: 500;
}
.hint.error {
  background: var(--red-bg);
  border-color: color-mix(in srgb, var(--red) 35%, transparent);
  color: var(--red);
}

/* ---------- APP SHELL ---------- */
.app { min-height: 100vh; }
.topbar {
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 14px 24px;
  border-bottom: 1px solid var(--border);
  background: var(--panel);
  position: sticky;
  top: 0;
  z-index: 10;
}
.brand { display: flex; align-items: center; gap: 10px; }
.brand-text {
  font-size: 13px;
  font-weight: 600;
  color: var(--muted);
}
.tabs { display: flex; gap: 4px; flex: 1; }
.tab-btn {
  background: transparent;
  border: none;
  color: var(--muted);
  padding: 8px 14px;
  font-size: 13px;
  font-weight: 700;
  border-radius: var(--radius-full);
  cursor: pointer;
  font-family: var(--font-sans);
  transition: color 0.15s ease, background-color 0.15s ease;
}
.tab-btn:hover { color: var(--text); }
.tab-btn.active { color: var(--brand-solid); background: color-mix(in srgb, var(--brand-solid) 12%, transparent); }
.topbar-right { display: flex; align-items: center; gap: 12px; font-size: 13px; padding-right: 44px; }

.content { padding: 28px 32px 60px; max-width: 1100px; margin: 0 auto; }
.tab-panel {}

.panel-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  margin-bottom: 20px;
  gap: 16px;
}
.panel-header h2 { margin: 0 0 4px; font-size: 21px; letter-spacing: -0.01em; }
.panel-header p { margin: 0; font-size: 13px; }

/* ---------- TABLES ---------- */
.board-wrap {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}
.board-table { width: 100%; border-collapse: collapse; }
.board-table thead th {
  text-align: left;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--muted);
  text-transform: uppercase;
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
  background: var(--panel-2);
}
.board-table tbody tr {
  border-bottom: 1px solid var(--border);
}
.board-table tbody tr:last-child { border-bottom: none; }
.board-table tbody tr:hover { background: var(--panel-2); }
.board-table td { padding: 14px 16px; font-size: 14px; vertical-align: top; }

.col-time { width: 90px; }
.col-freq { width: 140px; }
.col-status { width: 130px; }
.col-actions { width: 90px; text-align: right; }

.time-display {
  font-size: 15px;
  font-weight: 800;
  letter-spacing: -0.01em;
  font-variant-numeric: tabular-nums;
  color: var(--brand-solid);
}
.client-name { font-weight: 700; }
.client-group { display: block; font-size: 11.5px; color: var(--muted); margin-top: 2px; }
.msg-preview { color: var(--text); max-width: 360px; display: block; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.badge {
  display: inline-block;
  font-size: 11px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 4px 10px;
  border-radius: var(--radius-full);
  font-weight: 700;
}
.badge-active { background: color-mix(in srgb, var(--brand-solid) 14%, transparent); color: var(--brand-solid); }
.badge-sent { background: var(--green-bg); color: var(--green); }
.badge-failed { background: var(--red-bg); color: var(--red); }
.badge-paused { background: var(--panel-2); color: var(--muted); }
.badge-pending { background: var(--amber-bg); color: var(--amber); }

.row-actions { display: flex; gap: 6px; justify-content: flex-end; }
.icon-btn {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--muted);
  border-radius: var(--radius-sm);
  width: 28px; height: 28px;
  cursor: pointer;
  font-size: 13px;
  display: inline-flex; align-items: center; justify-content: center;
  transition: color 0.15s ease, border-color 0.15s ease;
}
.icon-btn:hover { color: var(--text); border-color: var(--border-strong); }

.empty-state {
  padding: 48px 24px;
  text-align: center;
  color: var(--muted);
}
.empty-state p { margin-bottom: 16px; }

/* ---------- SETTINGS ---------- */
.settings-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  max-width: 460px;
  box-shadow: var(--shadow-sm);
}
.settings-actions { display: flex; gap: 10px; margin-top: 4px; }
.divider { height: 1px; background: var(--border); margin: 28px 0; }
.settings-card h3 { margin: 0 0 16px; font-size: 15px; }

/* ---------- MODAL ---------- */
.modal-overlay {
  position: fixed; inset: 0;
  background: rgba(5, 7, 12, 0.55);
  backdrop-filter: blur(2px);
  display: flex; align-items: center; justify-content: center;
  z-index: 100;
  padding: 20px;
}
.modal {
  width: 100%; max-width: 440px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--shadow-md);
}
.modal-header {
  display: flex; justify-content: space-between; align-items: center;
  margin-bottom: 16px;
}
.modal-header h3 { margin: 0; font-size: 17px; letter-spacing: -0.01em; }
.modal-close {
  background: transparent; border: none; color: var(--muted);
  font-size: 22px; cursor: pointer; line-height: 1;
}
.modal-actions { margin-top: 8px; }

.days-row { display: flex; gap: 6px; margin-top: 6px; margin-bottom: 14px; }
.day-chip {
  flex: 1;
  background: var(--panel-2);
  border: 1px solid var(--border);
  color: var(--muted);
  border-radius: var(--radius-sm);
  padding: 8px 0;
  font-size: 12px;
  font-weight: 700;
  cursor: pointer;
  transition: color 0.15s ease, border-color 0.15s ease, background-color 0.15s ease;
}
.day-chip.selected {
  border-color: var(--brand-solid);
  color: var(--brand-solid);
  background: color-mix(in srgb, var(--brand-solid) 12%, transparent);
}

/* ---------- METRIC PALETTE (relatórios de ads) ---------- */
.metric-palette {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 6px;
  margin-bottom: 14px;
}
.metric-chip {
  display: inline-flex;
  align-items: center;
  background: var(--panel-2);
  border: 1px solid var(--border);
  color: var(--brand-solid);
  border-radius: var(--radius-full);
  padding: 6px 12px;
  font-size: 12px;
  font-weight: 700;
  cursor: grab;
  user-select: none;
  transition: border-color 0.15s ease, background-color 0.15s ease;
}
.metric-chip:hover { border-color: var(--brand-solid); background: color-mix(in srgb, var(--brand-solid) 10%, transparent); }
.metric-chip:active { cursor: grabbing; }

@media (max-width: 720px) {
  .theme-toggle { top: 10px; right: 12px; }
  .topbar { flex-wrap: wrap; }
  .topbar-right { padding-right: 0; }
  .tabs { order: 3; width: 100%; overflow-x: auto; }
  .content { padding: 20px 16px 60px; }
  .col-freq, .col-status { display: none; }
}