* {
  box-sizing: border-box;
}

:root {
  --bg: #070b14;
  --surface: #101827;
  --surface-2: #182235;
  --surface-3: #202c42;
  --border: rgba(255,255,255,.08);
  --text: #f5f7fb;
  --muted: #94a3b8;
  --accent: #3b82f6;
  --accent-dark: #2563eb;
  --assistant: #1b2638;
  --danger: #ef4444;
  --success: #22c55e;
}

html,
body {
  margin: 0;
  width: 100%;
  height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family:
    Inter,
    system-ui,
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    sans-serif;
}

body {
  overflow: hidden;
}

button,
input,
textarea {
  font: inherit;
}

button {
  cursor: pointer;
}

.app {
  width: 100%;
  max-width: 920px;
  height: 100dvh;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  background: var(--surface);
  position: relative;
}

/* CABEÇALHO */

.app-header {
  min-height: 76px;
  padding: 11px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  background: rgba(16,24,39,.96);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(16px);
  z-index: 10;
}

.companion-profile {
  display: flex;
  align-items: center;
  min-width: 0;
  gap: 12px;
}

.companion-avatar {
  width: 48px;
  height: 48px;
  flex: 0 0 48px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-size: 24px;
  font-weight: 700;
  color: white;
  background:
    linear-gradient(
      145deg,
      #60a5fa,
      #2563eb 55%,
      #4338ca
    );
  box-shadow:
    0 4px 18px
    rgba(37,99,235,.35);
}

.companion-info {
  min-width: 0;
}

.companion-info h1 {
  margin: 0;
  font-size: 19px;
  line-height: 1.25;
  letter-spacing: -.2px;
}

.companion-status {
  margin-top: 4px;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 5px;
  color: var(--muted);
  font-size: 12px;
}

.online-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--success);
  box-shadow:
    0 0 8px
    rgba(34,197,94,.7);
}

.status-separator {
  opacity: .5;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.header-actions button {
  width: 42px;
  height: 42px;
  padding: 0;
  border: 1px solid var(--border);
  border-radius: 14px;
  display: grid;
  place-items: center;
  background: var(--surface-2);
  color: var(--text);
  font-size: 19px;
  transition:
    transform .15s ease,
    background .15s ease;
}

.header-actions button:hover {
  background: var(--surface-3);
  transform: translateY(-1px);
}

/* CONVERSA */

.messages {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  padding: 24px 18px 30px;
  display: flex;
  flex-direction: column;
  gap: 13px;
  scroll-behavior: smooth;
}

.msg {
  position: relative;
  max-width: 76%;
  padding: 12px 15px;
  border-radius: 19px;
  font-size: 15px;
  line-height: 1.48;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}

.msg.user {
  align-self: flex-end;
  color: white;
  background:
    linear-gradient(
      135deg,
      #3b82f6,
      #2563eb
    );
  border-bottom-right-radius: 6px;
  box-shadow:
    0 4px 14px
    rgba(37,99,235,.20);
}

.msg.assistant {
  align-self: flex-start;
  color: var(--text);
  background: var(--assistant);
  border: 1px solid var(--border);
  border-bottom-left-radius: 6px;
  box-shadow:
    0 3px 12px
    rgba(0,0,0,.14);
}

.msg.system {
  align-self: center;
  max-width: 90%;
  padding: 9px 13px;
  color: #fecaca;
  background: rgba(239,68,68,.12);
  border: 1px solid rgba(239,68,68,.22);
  border-radius: 12px;
  font-size: 13px;
}

/* COMPOSER */

.composer {
  padding:
    12px
    14px
    max(13px, env(safe-area-inset-bottom));
  background: rgba(16,24,39,.98);
  border-top: 1px solid var(--border);
}

.composer-box {
  width: 100%;
  min-height: 54px;
  padding: 5px 6px 5px 16px;
  display: flex;
  align-items: flex-end;
  gap: 8px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 27px;
  transition:
    border-color .15s ease,
    box-shadow .15s ease;
}

.composer-box:focus-within {
  border-color:
    rgba(59,130,246,.7);
  box-shadow:
    0 0 0 3px
    rgba(59,130,246,.08);
}

.composer textarea {
  flex: 1;
  min-width: 0;
  min-height: 42px;
  max-height: 140px;
  padding: 11px 0 8px;
  resize: none;
  border: 0;
  outline: 0;
  background: transparent;
  color: var(--text);
  line-height: 1.4;
}

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

.send-button {
  width: 44px;
  height: 44px;
  min-width: 44px;
  padding: 0;
  border: 0;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background:
    linear-gradient(
      145deg,
      var(--accent),
      var(--accent-dark)
    );
  color: white;
  font-size: 19px;
  line-height: 1;
  box-shadow:
    0 4px 12px
    rgba(37,99,235,.3);
}

.send-button:hover {
  filter: brightness(1.08);
}

/* DIALOGS */

dialog {
  width: min(92vw, 520px);
  max-height: 90dvh;
  padding: 0;
  border: 1px solid var(--border);
  border-radius: 22px;
  background: var(--surface);
  color: var(--text);
  box-shadow:
    0 30px 80px
    rgba(0,0,0,.6);
}

dialog::backdrop {
  background: rgba(0,0,0,.72);
  backdrop-filter: blur(5px);
}

.settings {
  max-height: 88dvh;
  padding: 22px;
  overflow-y: auto;
}

.settings h2 {
  margin: 0 0 5px;
  font-size: 21px;
}

.settings h3 {
  margin: 22px 0 8px;
  font-size: 17px;
}

.settings small {
  color: var(--muted);
}

.settings label {
  display: block;
  margin: 17px 0;
  color: #cbd5e1;
  font-size: 13px;
  font-weight: 600;
}

.settings input,
.settings textarea,
#memoryText {
  width: 100%;
  margin-top: 7px;
  padding: 12px 13px;
  border: 1px solid var(--border);
  border-radius: 12px;
  outline: 0;
  background: var(--surface-2);
  color: var(--text);
}

.settings input:focus,
.settings textarea:focus,
#memoryText:focus {
  border-color: var(--accent);
}

#memoryText {
  min-height: 220px;
  resize: vertical;
  line-height: 1.5;
}

.dialog-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 15px;
}

#closeMemoryBtn {
  width: 38px;
  height: 38px;
  padding: 0;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--surface-2);
  color: var(--text);
}

.memory-info,
.sync-info,
.settings p {
  color: var(--muted);
  line-height: 1.5;
}

#memoryStatus,
#syncStatus {
  margin: 10px 0;
  color: var(--muted);
  font-size: 13px;
}

.privacy-note {
  padding: 12px 14px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: rgba(59,130,246,.08);
  color: #bfdbfe;
  font-size: 13px;
  line-height: 1.45;
}

.row {
  margin-top: 18px;
  display: flex;
  justify-content: flex-end;
  gap: 10px;
}

.row button {
  min-height: 42px;
  padding: 9px 15px;
  border: 0;
  border-radius: 11px;
  background: var(--accent);
  color: white;
  font-weight: 650;
}

.row .danger,
.danger {
  background: var(--danger);
}

hr {
  margin: 22px 0;
  border: 0;
  border-top: 1px solid var(--border);
}

/* SCROLLBAR */

.messages::-webkit-scrollbar,
.settings::-webkit-scrollbar {
  width: 7px;
}

.messages::-webkit-scrollbar-thumb,
.settings::-webkit-scrollbar-thumb {
  background: #334155;
  border-radius: 20px;
}

/* CELULAR */

@media (max-width: 600px) {
  .app {
    max-width: none;
  }

  .app-header {
    min-height: 68px;
    padding: 9px 11px;
  }

  .companion-avatar {
    width: 43px;
    height: 43px;
    flex-basis: 43px;
    font-size: 21px;
  }

  .companion-info h1 {
    font-size: 17px;
  }

  .companion-status {
    font-size: 11px;
  }

  .header-actions {
    gap: 6px;
  }

  .header-actions button {
    width: 39px;
    height: 39px;
    border-radius: 12px;
  }

  .messages {
    padding: 16px 11px 22px;
  }

  .msg {
    max-width: 87%;
    padding: 11px 14px;
  }

  .composer {
    padding:
      8px
      9px
      max(9px, env(safe-area-inset-bottom));
  }

  .composer-box {
    min-height: 51px;
  }

  .send-button {
    width: 41px;
    height: 41px;
    min-width: 41px;
  }

  dialog {
    width: calc(100vw - 18px);
    max-height: 93dvh;
    border-radius: 20px;
  }

  .settings {
    padding: 18px;
  }

  .row {
    flex-wrap: wrap;
  }
}

/* DESKTOP */

@media (min-width: 921px) {
  body {
    background:
      radial-gradient(
        circle at top,
        #172554 0,
        #0b1220 35%,
        #05070c 75%
      );
  }

  .app {
    border-left: 1px solid var(--border);
    border-right: 1px solid var(--border);
    box-shadow:
      0 0 60px
      rgba(0,0,0,.4);
  }
}/* AJUSTES FINAIS DA INTERFACE */

.companion-profile {
  display: flex !important;
  align-items: center !important;
  gap: 12px !important;
}

.companion-avatar {
  display: grid !important;
  place-items: center !important;

  width: 48px !important;
  height: 48px !important;
  min-width: 48px !important;
  min-height: 48px !important;

  flex: 0 0 48px !important;

  border-radius: 50% !important;

  background: linear-gradient(
    145deg,
    #60a5fa,
    #2563eb 55%,
    #4338ca
  ) !important;

  color: white !important;
  font-size: 24px !important;
  line-height: 48px !important;

  text-align: center !important;
  overflow: hidden;
}

.composer {
  width: 100% !important;
}

.composer-box {
  display: flex !important;
  width: 100% !important;
  max-width: none !important;
  align-items: center !important;
}

.composer textarea {
  flex: 1 1 auto !important;
  width: auto !important;
  min-width: 0 !important;
  border: 0 !important;
  box-shadow: none !important;
}

.send-button {
  flex: 0 0 44px !important;
  width: 44px !important;
  min-width: 44px !important;
  height: 44px !important;
  border-radius: 50% !important;
}
/* ÍCONE DA LUMI */

.companion-avatar {
  padding: 0 !important;
  background: transparent !important;
  overflow: hidden !important;
}

.companion-avatar img {
  display: block !important;
  width: 100% !important;
  height: 100% !important;
  object-fit: cover !important;
  border-radius: 50% !important;
}
/* =========================================================
   AUTHENTICATION
   ========================================================= */

.auth-box {
  display: flex;
  align-items: center;
}

.auth-button {
  min-width: 76px;
  height: 42px;
  padding: 0 14px;

  border: 1px solid var(--border);
  border-radius: 14px;

  background: var(--surface-2);
  color: var(--text);

  font-size: 13px;
  font-weight: 600;
  white-space: nowrap;

  cursor: pointer;

  transition:
    background .15s ease,
    transform .15s ease;
}

.auth-button:hover {
  background: var(--surface-3);
  transform: translateY(-1px);
}

.auth-button[hidden] {
  display: none !important;
}

@media (max-width: 600px) {
  .auth-button {
    min-width: auto;
    height: 39px;
    padding: 0 10px;
    border-radius: 12px;
    font-size: 12px;
  }
}