/* Tema claro (padrão) — branco, azul claro, cinza claro */
:root,
[data-theme="light"] {
  --bg: #f0f4f8;
  --bg-accent: #e3eef8;
  --panel: #ffffff;
  --panel-2: #f7fafc;
  --text: #1a2b3c;
  --muted: #6b7c8f;
  --accent: #3b9eff;
  --accent-2: #2b7fd4;
  --user: #dff0ff;
  --user-border: #b3d7f5;
  --bot: #ffffff;
  --bot-border: #e2eaf2;
  --border: #d5e0eb;
  --warn: #b8860b;
  --link: #2b7fd4;
  --video: #0d9488;
  --video-hover: #0f766e;
  --shadow: 0 8px 28px rgba(26, 58, 92, 0.08);
  --shadow-soft: 0 2px 10px rgba(26, 58, 92, 0.06);
  --input-focus: rgba(59, 158, 255, 0.2);
  --chat-bg: #f8fafc;
  --tab-inactive: #eef3f8;
  --phase-atend-user: #dbeafe;
  --phase-atend-user-border: #93c5fd;
  --phase-atend-bot: #f1f5f9;
  --phase-atend-bot-border: #cbd5e1;
  --phase-pesquisa-user: #d1fae5;
  --phase-pesquisa-user-border: #6ee7b7;
  --phase-pesquisa-bot: #fef3c7;
  --phase-pesquisa-bot-border: #fcd34d;
  --phase-encerr-bot: #ede9fe;
  --phase-encerr-bot-border: #c4b5fd;
  --phase-encerr-user: #e0e7ff;
  --phase-encerr-user-border: #a5b4fc;
  --font: "Segoe UI", system-ui, -apple-system, sans-serif;
}

/* Tema escuro — moderno e limpo */
[data-theme="dark"] {
  --bg: #0c1522;
  --bg-accent: #132338;
  --panel: #152536;
  --panel-2: #1a2f44;
  --text: #e8f1fa;
  --muted: #8fa6bd;
  --accent: #4aa3ff;
  --accent-2: #2b7fd4;
  --user: #1a4a7a;
  --user-border: #3d7ab8;
  --bot: #173049;
  --bot-border: #2a4d6e;
  --border: #2a4560;
  --warn: #e6b84d;
  --link: #7ec8ff;
  --video: #2dd4bf;
  --video-hover: #5eead4;
  --shadow: 0 10px 32px rgba(0, 0, 0, 0.35);
  --shadow-soft: 0 2px 12px rgba(0, 0, 0, 0.25);
  --input-focus: rgba(74, 163, 255, 0.28);
  --chat-bg: #101c2b;
  --tab-inactive: #152a40;
  --phase-atend-user: #1e3a5f;
  --phase-atend-user-border: #3b82f6;
  --phase-atend-bot: #1e293b;
  --phase-atend-bot-border: #475569;
  --phase-pesquisa-user: #064e3b;
  --phase-pesquisa-user-border: #34d399;
  --phase-pesquisa-bot: #422006;
  --phase-pesquisa-bot-border: #fbbf24;
  --phase-encerr-bot: #2e1065;
  --phase-encerr-bot-border: #a78bfa;
  --phase-encerr-user: #1e1b4b;
  --phase-encerr-user-border: #818cf8;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font);
  color: var(--text);
  background:
    radial-gradient(900px 480px at 0% -10%, var(--bg-accent) 0%, transparent 55%),
    radial-gradient(700px 400px at 100% 0%, color-mix(in srgb, var(--accent) 12%, transparent) 0%, transparent 50%),
    var(--bg);
  transition: background 0.25s ease, color 0.2s ease;
}

.app {
  max-width: 820px;
  margin: 0 auto;
  min-height: 100vh;
  padding: 24px 16px 32px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.header {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 12px;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.eyebrow {
  margin: 0;
  color: var(--link);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-weight: 600;
}

h1 {
  margin: 4px 0 0;
  font-size: 1.65rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.status {
  font-size: 0.78rem;
  color: var(--muted);
  background: var(--panel);
  border: 1px solid var(--border);
  padding: 8px 12px;
  border-radius: 999px;
  max-width: 260px;
  text-align: right;
  box-shadow: var(--shadow-soft);
}

.theme-toggle {
  display: inline-flex;
  align-items: center;
  gap: 0;
  border: 1px solid var(--border);
  border-radius: 999px;
  overflow: hidden;
  background: var(--panel);
  box-shadow: var(--shadow-soft);
}

.theme-toggle button {
  border: 0;
  background: transparent;
  color: var(--muted);
  font-size: 0.75rem;
  font-weight: 600;
  padding: 8px 12px;
  cursor: pointer;
  font-family: inherit;
}

.theme-toggle button:hover {
  color: var(--text);
  background: var(--tab-inactive);
}

.theme-toggle button.active {
  color: #fff;
  background: linear-gradient(180deg, var(--accent), var(--accent-2));
}

.produto-tabs {
  display: flex;
  gap: 8px;
}

.produto-tabs .tab {
  flex: 1;
  border: 1px solid var(--border);
  background: var(--tab-inactive);
  color: var(--muted);
  border-radius: 12px;
  padding: 10px 12px;
  font-weight: 600;
  cursor: pointer;
  font-family: inherit;
  transition: background 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}

.produto-tabs .tab:hover {
  border-color: var(--accent);
  color: var(--text);
}

.produto-tabs .tab.active {
  color: #fff;
  background: linear-gradient(180deg, var(--accent), var(--accent-2));
  border-color: transparent;
  box-shadow: 0 4px 14px color-mix(in srgb, var(--accent) 35%, transparent);
}

.chat {
  flex: 1;
  background: var(--chat-bg);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 16px;
  overflow-y: auto;
  min-height: 420px;
  max-height: calc(100vh - 280px);
  display: flex;
  flex-direction: column;
  gap: 12px;
  box-shadow: var(--shadow);
}

.msg {
  max-width: 92%;
  padding: 12px 14px;
  border-radius: 16px;
  line-height: 1.5;
  white-space: pre-wrap;
  word-break: break-word;
  box-shadow: var(--shadow-soft);
  color: var(--text);
}

.msg.user {
  align-self: flex-end;
  background: var(--user);
  border: 1px solid var(--user-border);
  border-bottom-right-radius: 6px;
}

.msg.bot {
  align-self: flex-start;
  background: var(--bot);
  border: 1px solid var(--bot-border);
  border-bottom-left-radius: 6px;
}

/* Etapa: atendimento (padrão) */
.msg.user.phase-atendimento {
  background: var(--phase-atend-user);
  border-color: var(--phase-atend-user-border);
}

.msg.bot.phase-atendimento {
  background: var(--phase-atend-bot);
  border-color: var(--phase-atend-bot-border);
}

/* Etapa: pesquisa de satisfação */
.msg.user.phase-pesquisa {
  background: var(--phase-pesquisa-user);
  border-color: var(--phase-pesquisa-user-border);
}

.msg.bot.phase-pesquisa {
  background: var(--phase-pesquisa-bot);
  border-color: var(--phase-pesquisa-bot-border);
}

/* Etapa: encerramento */
.msg.bot.phase-encerramento {
  background: var(--phase-encerr-bot);
  border-color: var(--phase-encerr-bot-border);
}

.msg.user.phase-encerramento {
  background: var(--phase-encerr-user);
  border-color: var(--phase-encerr-user-border);
}

.msg.thinking {
  color: var(--muted);
  font-style: italic;
  display: flex;
  align-items: center;
  gap: 6px;
}

.msg.thinking .thinking-dots::after {
  content: "";
  display: inline-block;
  width: 1.2em;
  text-align: left;
  animation: thinking-dots 1.2s steps(4, end) infinite;
}

@keyframes thinking-dots {
  0% { content: ""; }
  25% { content: "."; }
  50% { content: ".."; }
  75% { content: "..."; }
  100% { content: ""; }
}

.msg .meta {
  margin-top: 10px;
  padding-top: 8px;
  border-top: 1px solid var(--border);
  font-size: 0.75rem;
  color: var(--muted);
}

.msg .warn {
  color: var(--warn);
  margin-bottom: 8px;
  font-size: 0.85rem;
}

.msg strong {
  font-weight: 650;
}

.msg .videos {
  margin-top: 10px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.msg .videos a,
.msg .videos a:visited,
.msg .videos button.video-btn {
  color: var(--video);
  font-size: 0.9rem;
  font-weight: 600;
  text-decoration: none;
}

.msg .videos a:hover,
.msg .videos button.video-btn:hover {
  color: var(--video-hover);
  text-decoration: underline;
}

.msg .videos button.video-btn {
  appearance: none;
  border: none;
  background: transparent;
  text-align: left;
  padding: 0;
  cursor: pointer;
  font-family: inherit;
}

.video-modal {
  position: fixed;
  inset: 0;
  z-index: 1000;
  background: #0a121c;
  display: flex;
  flex-direction: column;
}

.video-modal[hidden] {
  display: none !important;
}

.video-modal-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 12px 16px;
  background: var(--panel);
  border-bottom: 1px solid var(--border);
}

.video-modal-heading {
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.video-modal-bar #videoModalTitle {
  font-size: 1rem;
  font-weight: 600;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.video-shortcut {
  display: inline-flex;
  align-self: flex-start;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: #0a1628;
  background: #7dd3fc;
  border-radius: 6px;
  padding: 3px 8px;
}

.video-shortcut[hidden] {
  display: none !important;
}

#videoModalClose {
  flex-shrink: 0;
  border: none;
  border-radius: 10px;
  padding: 10px 16px;
  background: linear-gradient(180deg, var(--accent), var(--accent-2));
  color: #fff;
  font-weight: 600;
  cursor: pointer;
}

#videoModalPlayer {
  flex: 1;
  width: 100%;
  max-height: calc(100vh - 100px);
  background: #000;
}

.video-modal-hint {
  margin: 0;
  padding: 10px 16px;
  font-size: 0.8rem;
  color: var(--muted);
  background: var(--panel);
  border-top: 1px solid var(--border);
}

.composer {
  display: flex;
  gap: 8px;
}

.composer input {
  flex: 1;
  border: 1px solid var(--border);
  background: var(--panel);
  color: var(--text);
  border-radius: 14px;
  padding: 14px 16px;
  font-size: 1rem;
  outline: none;
  box-shadow: var(--shadow-soft);
  font-family: inherit;
}

.composer input::placeholder {
  color: var(--muted);
}

.composer input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--input-focus);
}

.composer button {
  border: 0;
  background: linear-gradient(180deg, var(--accent), var(--accent-2));
  color: white;
  font-weight: 600;
  border-radius: 14px;
  padding: 0 22px;
  cursor: pointer;
  font-family: inherit;
  box-shadow: 0 4px 14px color-mix(in srgb, var(--accent) 30%, transparent);
}

.composer button:hover {
  filter: brightness(1.06);
}

.composer button:disabled {
  opacity: 0.55;
  cursor: wait;
}

.hint {
  margin: 0;
  color: var(--muted);
  font-size: 0.8rem;
  text-align: center;
}

.hint code {
  color: var(--link);
}

@media (max-width: 600px) {
  .header {
    flex-direction: column;
    align-items: flex-start;
  }

  .header-actions {
    width: 100%;
    justify-content: space-between;
  }

  .status {
    text-align: left;
    max-width: none;
  }
}