/* =====================================================
   CORVUS 2.0 — UI/UX Refactor (versão estável + melhorias)
   ===================================================== */

:root {
  --color-bg: #0a0a0a;
  --color-surface: #111111;
  --color-surface-2: #161616;
  --color-surface-hover: #1c1c1c;
  --color-border: #222222;
  --color-border-subtle: #1a1a1a;
  --color-text: #ededed;
  --color-text-secondary: #888888;
  --color-text-tertiary: #555555;
  --color-primary: #dc2626;
  --color-primary-hover: #b91c1c;
  --color-primary-dark: #7f1d1d;
  --color-primary-glow: rgba(220, 38, 38, 0.2);
  --color-fenrir: #8B0000;
  --color-fenrir-glow: rgba(139, 0, 0, 0.25);
  --color-user-msg: #161616;
  --color-corvus-msg: #0f0f0f;
  
  --font-main: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --transition: 150ms ease;
  --transition-slow: 250ms ease;
  
  --sidebar-width: 272px;
  --header-height: 60px;
  --input-max-width: 820px;
  --radius-xs: 4px;
  --radius-sm: 6px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
}

/* TEMA CLARO — completamente reformulado */
/* ===== TEMA CLARO ===== */
[data-theme="light"] {
  --color-bg: #f4f4f5;
  --color-surface: #ffffff;
  --color-surface-2: #f0f0f0;
  --color-surface-hover: #e8e8e8;
  --color-border: #d4d4d4;
  --color-border-subtle: #e4e4e4;
  --color-text: #111111;
  --color-text-secondary: #444444;
  --color-text-tertiary: #888888;
  --color-primary: #dc2626;
  --color-primary-hover: #b91c1c;
  --color-primary-glow: rgba(220, 38, 38, 0.12);
  --color-user-msg: #efefef;
  --color-corvus-msg: #ffffff;
}

/* ===== TEMA CINZA ===== */
[data-theme="gray"] {
  --color-bg: #1e1e1e;
  --color-surface: #2a2a2a;
  --color-surface-2: #323232;
  --color-surface-hover: #3a3a3a;
  --color-border: #404040;
  --color-border-subtle: #383838;
  --color-text: #e8e8e8;
  --color-text-secondary: #a0a0a0;
  --color-text-tertiary: #666666;
  --color-primary: #dc2626;
  --color-primary-hover: #b91c1c;
  --color-primary-glow: rgba(220, 38, 38, 0.18);
  --color-user-msg: #303030;
  --color-corvus-msg: #252525;
}

*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  height: 100%;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-main);
  background: var(--color-bg);
  color: var(--color-text);
  height: 100%;
  overflow: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  transition: background-color 0.2s, color 0.2s;
}

button {
  font-family: inherit;
}

*:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
  border-radius: 2px;
}

/* ===== BACKGROUND ORBS ===== */
.background-container {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  overflow: hidden;
}

.gradient-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(120px);
  opacity: 0.12;
  animation: float 24s infinite ease-in-out;
  will-change: transform;
}

.orb-1 {
  width: min(600px, 90vw);
  height: min(600px, 90vw);
  background: radial-gradient(circle, var(--color-primary) 0%, transparent 70%);
  top: -300px;
  left: -300px;
}

.orb-2 {
  width: min(500px, 80vw);
  height: min(500px, 80vw);
  background: radial-gradient(circle, #6b0000 0%, transparent 70%);
  bottom: -250px;
  right: -250px;
  animation-delay: 8s;
}

.orb-3 {
  width: min(350px, 60vw);
  height: min(350px, 60vw);
  background: radial-gradient(circle, var(--color-primary) 0%, transparent 70%);
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  animation-delay: 16s;
  opacity: 0.06;
}

@keyframes float {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(40px, -40px) scale(1.05); }
  66% { transform: translate(-40px, 40px) scale(0.95); }
}

.app-container {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

/* ===== HEADER ===== */
.header {
  position: relative;
  height: var(--header-height);
  background: rgba(10, 10, 10, 0.85);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border-bottom: 1px solid rgba(220, 38, 38, 0.2);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
  z-index: 100;
  flex-shrink: 0;
}
[data-theme="light"] .header {
  background: rgba(255, 255, 255, 0.85);
  border-bottom-color: var(--color-border);
  box-shadow: 0 2px 8px rgba(0,0,0,0.05);
}

.header-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 100%;
  padding: 0 clamp(1rem, 3vw, 1.75rem);
  max-width: 100%;
}

.menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 36px;
  height: 36px;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 6px;
  border-radius: var(--radius-sm);
  transition: background var(--transition);
  flex-shrink: 0;
}
.menu-toggle:hover {
  background: var(--color-surface-hover);
}
.menu-toggle span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
  transform-origin: center;
}
.menu-toggle.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.menu-toggle.active span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.menu-toggle.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}
.logo-icon {
  width: clamp(28px, 4vw, 36px);
  height: clamp(28px, 4vw, 36px);
  object-fit: contain;
  filter: drop-shadow(0 0 8px var(--color-primary-glow));
}
.logo-text h1 {
  font-size: clamp(1rem, 2.5vw, 1.2rem);
  font-weight: 700;
  letter-spacing: 3px;
  color: var(--color-text);
  line-height: 1;
}
.logo-text span {
  font-size: 0.65rem;
  color: var(--color-text-secondary);
  letter-spacing: 0.5px;
  display: block;
  margin-top: 2px;
}

.header-status {
  display: flex;
  align-items: center;
  gap: 7px;
  font-size: 0.8rem;
  color: var(--color-text-secondary);
  letter-spacing: 0.3px;
}
.status-indicator {
  width: 7px;
  height: 7px;
  background: #22c55e;
  border-radius: 50%;
  animation: pulse 3s infinite;
  flex-shrink: 0;
}
@keyframes pulse {
  0%, 100% { opacity: 1; box-shadow: 0 0 0 0 rgba(34, 197, 94, 0.4); }
  50% { opacity: 0.8; box-shadow: 0 0 0 4px rgba(34, 197, 94, 0); }
}

.header-glow {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent 0%, var(--color-primary) 20%, var(--color-primary) 80%, transparent 100%);
  opacity: 0.3;
}

.main-content {
  flex: 1;
  min-height: 0;
  display: flex;
  overflow: hidden;
}

/* ===== SIDEBAR ===== */
.sidebar {
  width: var(--sidebar-width);
  background: rgba(11, 11, 11, 0.7);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-right: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  height: 100%;
  overflow: hidden;
  transition: transform var(--transition-slow);
  z-index: 50;
  flex-shrink: 0;
}
[data-theme="light"] .sidebar {
  background: rgba(249, 250, 251, 0.8);
}

.sidebar-content {
  display: flex;
  flex-direction: column;
  height: 100%;
  min-height: 0;
  padding: 0;
}

/* Scrollbar */
.sidebar::-webkit-scrollbar,
.sidebar-history-list::-webkit-scrollbar,
#chatList::-webkit-scrollbar { width: 4px; }
.sidebar::-webkit-scrollbar-track,
.sidebar-history-list::-webkit-scrollbar-track,
#chatList::-webkit-scrollbar-track { background: transparent; }
.sidebar::-webkit-scrollbar-thumb,
.sidebar-history-list::-webkit-scrollbar-thumb,
#chatList::-webkit-scrollbar-thumb {
  background: var(--color-border);
  border-radius: 2px;
}

.sidebar-overlay {
  display: none;
  position: fixed;
  top: var(--header-height);
  left: 0;
  width: 100%;
  height: calc(100vh - var(--header-height));
  background: rgba(0, 0, 0, 0.6);
  z-index: 40;
  opacity: 0;
  transition: opacity var(--transition);
  pointer-events: none;
}
.sidebar-overlay.active {
  opacity: 1;
  pointer-events: auto;
}

.sidebar-user-info {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 16px;
  border-bottom: 1px solid var(--color-border-subtle);
  flex-shrink: 0;
}
.sui-avatar {
  width: 32px;
  height: 32px;
  background: linear-gradient(135deg, var(--color-primary-dark), var(--color-primary));
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  font-weight: 700;
  color: #fff;
  flex-shrink: 0;
}
.sui-details {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 1px;
}
.sui-name {
  font-size: 13px;
  font-weight: 600;
  color: var(--color-text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  line-height: 1.3;
}
.sui-cargo {
  font-size: 11px;
  color: var(--color-primary);
  letter-spacing: 0.5px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.sui-logout {
  background: none;
  border: 1px solid var(--color-border);
  color: var(--color-text-secondary);
  width: 30px;
  height: 30px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  transition: all var(--transition);
  flex-shrink: 0;
}
.sui-logout:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  background: rgba(220, 38, 38, 0.08);
}

/* ===== BOTÃO NOVO CHAT REDESENHADO ===== */
.btn-new-chat {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin: 12px 12px 8px;
  padding: 10px 14px;
  background: rgba(220, 38, 38, 0.05);
  border: 1px solid rgba(220, 38, 38, 0.3);
  border-radius: 20px;
  color: var(--color-primary);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition);
  flex-shrink: 0;
}
.btn-new-chat:hover {
  background: rgba(220, 38, 38, 0.1);
  border-color: var(--color-primary);
}
.btn-new-chat svg {
  width: 16px;
  height: 16px;
  stroke: currentColor;
}
[data-theme="light"] .btn-new-chat {
  background: rgba(220, 38, 38, 0.05);
  border-color: rgba(220, 38, 38, 0.3);
  color: var(--color-primary);
}
[data-theme="light"] .btn-new-chat:hover {
  background: rgba(220, 38, 38, 0.1);
}

/* ===== HISTÓRICO ===== */
.sidebar-history {
  flex: 1;
  min-height: 0;
  display: flex;
  flex-direction: column;
  padding: 0 12px;
}
.sidebar-history-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 4px 6px;
  flex-shrink: 0;
}
.sidebar-history-title {
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--color-text-tertiary);
  font-weight: 600;
}
.btn-clear-history {
  background: transparent;
  border: none;
  color: var(--color-text-tertiary);
  font-size: 11px;
  cursor: pointer;
  padding: 3px 6px;
  border-radius: var(--radius-xs);
  transition: all var(--transition);
}
.btn-clear-history:hover {
  color: var(--color-primary);
  background: rgba(220, 38, 38, 0.08);
}
.sidebar-history-list,
#chatList {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding-bottom: 8px;
  -webkit-overflow-scrolling: touch;
}

/* Chat items - hover minimalista */
#chatList .chat-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 9px 10px;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  cursor: pointer;
  transition: background var(--transition), border-color var(--transition);
  min-width: 0;
  -webkit-tap-highlight-color: transparent;
}
#chatList .chat-item:hover {
  background: var(--color-surface-hover);
}
#chatList .chat-item.active {
  background: rgba(220, 38, 38, 0.07);
  border-color: rgba(220, 38, 38, 0.25);
}
#chatList .chat-item-main {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
  flex: 1;
}
#chatList .chat-item-title {
  font-size: 13px;
  font-weight: 500;
  color: var(--color-text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  line-height: 1.3;
}
#chatList .chat-item.active .chat-item-title {
  color: var(--color-primary);
}
#chatList .chat-item-actions {
  display: none;
  gap: 4px;
  flex-shrink: 0;
}
#chatList .chat-item:hover .chat-item-actions {
  display: inline-flex;
}
#chatList .chat-action-btn {
  width: 26px;
  height: 26px;
  border-radius: var(--radius-xs);
  background: transparent;
  border: 1px solid var(--color-border);
  color: var(--color-text-secondary);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition);
  font-size: 13px;
}
#chatList .chat-action-btn:hover {
  border-color: rgba(220, 38, 38, 0.4);
  color: var(--color-primary);
  background: rgba(220, 38, 38, 0.08);
}
#chatList .chat-list-empty {
  color: var(--color-text-tertiary);
  font-size: 12px;
  padding: 16px 4px;
  text-align: center;
  line-height: 1.5;
}

.sidebar-info {
  flex-shrink: 0;
  padding: 0 12px 16px;
}
.info-divider {
  height: 1px;
  background: var(--color-border-subtle);
  margin-bottom: 12px;
}
.info-item {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 4px 0;
}
.info-label {
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--color-text-tertiary);
}
.info-value {
  font-size: 12px;
  font-weight: 500;
  color: var(--color-text-secondary);
}
.info-institution .info-value {
  color: var(--color-text);
}

/* ===== CHAT CONTAINER ===== */
.chat-container {
  flex: 1;
  min-height: 0;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  min-width: 0;
}
.guest-banner {
  background: rgba(139, 0, 0, 0.08);
  border-bottom: 1px solid rgba(220, 38, 38, 0.15);
  padding: 8px 20px;
  text-align: center;
  font-size: 12px;
  color: var(--color-text-secondary);
  flex-shrink: 0;
}
.guest-banner span {
  color: var(--color-primary);
  font-weight: 600;
}

.chat-messages {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  overflow-x: hidden;
  padding: clamp(1rem, 3vw, 2rem) clamp(1rem, 3vw, 2rem);
  display: flex;
  flex-direction: column;
  gap: clamp(1rem, 2vw, 1.25rem);
  -webkit-overflow-scrolling: touch;
}
.chat-messages::-webkit-scrollbar { width: 4px; }
.chat-messages::-webkit-scrollbar-track { background: transparent; }
.chat-messages::-webkit-scrollbar-thumb { background: var(--color-border); border-radius: 2px; }

/* Animação de entrada suave (sem escala) */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

.message {
  display: flex;
  gap: clamp(10px, 2vw, 14px);
  max-width: min(760px, 100%);
  animation: fadeIn 0.25s ease-out;
  width: 100%;
}
.message.user {
  align-self: flex-end;
  flex-direction: row-reverse;
}
.message + .message {
  margin-top: 4px;
  border-top: 1px solid var(--color-border-subtle);
  padding-top: 8px;
}

.message-avatar {
  width: clamp(30px, 5vw, 34px);
  height: clamp(30px, 5vw, 34px);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-weight: 600;
  font-size: 13px;
  overflow: hidden;
}
.message.user .message-avatar {
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  color: var(--color-text-secondary);
}
.message.corvus .message-avatar {
  background: rgba(0, 0, 0, 0.3);
  border: 1.5px solid rgba(255, 255, 255, 0.08);
}
.message-avatar .avatar-image {
  width: 100%;
  height: 100%;
  object-fit: contain;
  padding: 4px;
  transform: scale(1.2);
}

.message-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-width: 0;
}
.message-bubble {
  padding: clamp(10px, 2vw, 13px) clamp(12px, 2.5vw, 16px);
  border-radius: var(--radius-md);
  line-height: 1.65;
  word-wrap: break-word;
  overflow-wrap: break-word;
  font-size: clamp(0.875rem, 1.5vw, 0.9375rem);
}
.message.user .message-bubble {
  background: var(--color-user-msg);
  border: 1px solid var(--color-border);
  border-top-right-radius: var(--radius-xs);
}
.message.corvus .message-bubble {
  background: var(--color-corvus-msg);
  border: 1px solid rgba(255, 255, 255, 0.04);
  border-top-left-radius: var(--radius-xs);
}

.message.corvus .message-bubble h1,
.message.corvus .message-bubble h2,
.message.corvus .message-bubble h3 {
  color: var(--color-text);
  font-weight: 600;
  margin: 14px 0 6px;
  line-height: 1.3;
}
.message.corvus .message-bubble h1 { font-size: 1.05rem; }
.message.corvus .message-bubble h2 { font-size: 0.975rem; }
.message.corvus .message-bubble h3 { font-size: 0.925rem; }
.message.corvus .message-bubble p { margin: 6px 0; line-height: 1.7; }
.message.corvus .message-bubble ul,
.message.corvus .message-bubble ol { padding-left: 18px; margin: 8px 0; }
.message.corvus .message-bubble li { margin-bottom: 4px; line-height: 1.6; }
.message.corvus .message-bubble strong { color: #fff; font-weight: 600; }
.message.corvus .message-bubble em { color: var(--color-text-secondary); }
.message.corvus .message-bubble code {
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--color-border);
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 0.85em;
  font-family: 'SF Mono', 'Fira Code', monospace;
}
.message.corvus .message-bubble blockquote {
  border-left: 2px solid var(--color-primary);
  padding-left: 12px;
  margin: 8px 0;
  color: var(--color-text-secondary);
  font-style: italic;
}

.message-actions {
  display: flex;
  gap: 8px;
  align-items: center;
  padding: 0 2px;
}
.message-timestamp {
  font-size: 11px;
  color: var(--color-text-tertiary);
}
.btn-copy {
  background: transparent;
  border: none;
  color: var(--color-text-tertiary);
  cursor: pointer;
  padding: 3px 6px;
  border-radius: var(--radius-xs);
  transition: all var(--transition);
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 11px;
}
.btn-copy:hover {
  color: var(--color-text-secondary);
  background: var(--color-surface-hover);
}
.btn-copy svg {
  width: 12px;
  height: 12px;
}

.fenrir-tag {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 10px;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: #ef4444;
  background: rgba(139, 0, 0, 0.12);
  border: 1px solid rgba(220, 38, 38, 0.2);
  padding: 2px 8px;
  border-radius: 20px;
  margin-bottom: 4px;
  width: fit-content;
  font-weight: 500;
}

/* ===== TYPING INDICATOR ===== */
.typing-indicator {
  display: flex;
  gap: clamp(10px, 2vw, 14px);
  max-width: min(760px, 100%);
}
.typing-indicator .typing-dots {
  display: flex;
  align-items: center;
  gap: 5px;
  padding: 14px 16px;
  background: var(--color-corvus-msg);
  border: 1px solid rgba(255, 255, 255, 0.04);
  border-radius: var(--radius-md);
  border-top-left-radius: var(--radius-xs);
  position: relative;
  overflow: hidden;
}
.typing-indicator .typing-dots::after {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.05), transparent);
  animation: shimmer 1.5s infinite;
}
@keyframes shimmer {
  100% { left: 100%; }
}
.typing-dot {
  width: 6px;
  height: 6px;
  background: var(--color-text-tertiary);
  border-radius: 50%;
  animation: typingBounce 1.2s infinite;
}
.typing-dot:nth-child(2) { animation-delay: 0.15s; }
.typing-dot:nth-child(3) { animation-delay: 0.3s; }
@keyframes typingBounce {
  0%, 60%, 100% { transform: translateY(0); opacity: 0.4; }
  30% { transform: translateY(-6px); opacity: 1; }
}
.typing-text {
  margin-top: 8px;
  font-size: 11px;
  color: var(--color-text-tertiary);
  display: flex;
  align-items: center;
  gap: 4px;
}
.typing-ellipsis::after {
  content: "";
  display: inline-block;
  width: 16px;
  animation: ellipsis 1.2s infinite steps(4, end);
}
@keyframes ellipsis {
  0%   { content: ""; }
  25%  { content: "."; }
  50%  { content: ".."; }
  75%  { content: "..."; }
  100% { content: ""; }
}

/* ===== INPUT CONTAINER ===== */
.input-container {
  padding: clamp(0.875rem, 2vw, 1.25rem) clamp(1rem, 3vw, 1.75rem) clamp(1rem, 2.5vw, 1.5rem);
  background: rgba(10, 10, 10, 0.9);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border-top: 1px solid var(--color-border-subtle);
  flex-shrink: 0;
}
[data-theme="light"] .input-container {
  background: rgba(255, 255, 255, 0.9);
}

/* ===== OVERRIDES TEMA CINZA ===== */
[data-theme="gray"] .header {
  background: rgba(26, 26, 26, 0.92);
}

[data-theme="gray"] .sidebar {
  background: rgba(28, 28, 28, 0.85);
}

[data-theme="gray"] .input-container {
  background: rgba(26, 26, 26, 0.95);
}

[data-theme="gray"] .gradient-orb {
  opacity: 0.08;
}


.input-wrapper {
  display: flex;
  align-items: flex-end;
  max-width: var(--input-max-width);
  margin: 0 auto;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: visible;
  transition: border-color var(--transition), box-shadow var(--transition);
  position: relative;
}
.input-wrapper:focus-within {
  border-color: rgba(220, 38, 38, 0.35);
  box-shadow: 0 0 0 3px rgba(220, 38, 38, 0.07);
}

#messageInput {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  padding: clamp(12px, 2vw, 14px) 12px;
  color: var(--color-text);
  font-family: var(--font-main);
  font-size: clamp(0.875rem, 1.5vw, 0.9375rem);
  resize: none;
  max-height: 160px;
  line-height: 1.55;
  min-height: 48px;
  -webkit-appearance: none;
  transition: height 0.1s ease;
}
#messageInput::placeholder {
  color: var(--color-text-tertiary);
}

.btn-send {
  width: 38px;
  height: 38px;
  margin: 5px 6px 5px 0;
  background: var(--color-primary);
  border: none;
  border-radius: var(--radius-sm);
  color: #fff;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition);
  flex-shrink: 0;
}
.btn-send:hover:not(:disabled) {
  background: var(--color-primary-hover);
  box-shadow: 0 2px 12px rgba(220, 38, 38, 0.35);
}
.btn-send:active:not(:disabled) {
  transform: scale(0.95);
}
.btn-send:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}
.btn-send svg {
  width: 17px;
  height: 17px;
}

.input-hint {
  text-align: center;
  font-size: 11px;
  color: var(--color-text-tertiary);
  margin-top: 10px;
  letter-spacing: 0.2px;
}

/* ===== MODEL SELECTOR ===== */
.model-selector {
  position: relative;
  flex-shrink: 0;
  align-self: flex-end;
  margin: 5px 0 5px 8px;
}
.model-selector-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 10px;
  background: transparent;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-text-secondary);
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
  height: 34px;
}
.model-selector-btn:hover {
  border-color: rgba(220, 38, 38, 0.35);
  color: var(--color-text);
  background: rgba(220, 38, 38, 0.04);
}
.model-selector-btn.fenrir-active {
  border-color: rgba(220, 38, 38, 0.4);
  background: rgba(139, 0, 0, 0.12);
  color: #f87171;
}
.model-selector-icon {
  width: 16px;
  height: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.model-selector-icon svg {
  width: 100%;
  height: 100%;
  stroke: currentColor;
}
.model-selector-icon.fenrir-icon { color: #ef4444; }
.model-selector-name { font-size: 12px; font-weight: 500; }
.model-selector-chevron { width: 14px; height: 14px; stroke: currentColor; opacity: 0.6; transition: transform var(--transition); }
.model-selector-btn[aria-expanded="true"] .model-selector-chevron { transform: rotate(180deg); }

.model-dropdown {
  position: absolute;
  bottom: calc(100% + 8px);
  left: 0;
  min-width: 220px;
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 6px;
  box-shadow: 0 -8px 32px rgba(0, 0, 0, 0.5), 0 -2px 8px rgba(0, 0, 0, 0.3);
  z-index: 200;
  opacity: 0;
  transform: translateY(6px) scale(0.97);
  pointer-events: none;
  transition: opacity var(--transition), transform var(--transition);
  transform-origin: bottom left;
}
.model-dropdown.open {
  opacity: 1;
  transform: translateY(0) scale(1);
  pointer-events: auto;
}
.model-dropdown-header {
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--color-text-tertiary);
  padding: 6px 10px 8px;
  font-weight: 600;
}
.model-option {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  padding: 10px 10px;
  background: transparent;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background var(--transition);
  text-align: left;
}
.model-option:hover { background: var(--color-surface-hover); }
.model-option.active { background: rgba(220, 38, 38, 0.06); }
.model-option-icon {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-sm);
  background: var(--color-surface-hover);
  border: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.model-option-icon svg { width: 16px; height: 16px; stroke: var(--color-text-secondary); }
.model-option-icon.fenrir-icon {
  background: rgba(139, 0, 0, 0.12);
  border-color: rgba(220, 38, 38, 0.2);
}
.model-option-icon.fenrir-icon svg { stroke: #ef4444; }
.model-option-info {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
}
.model-option-name { font-size: 13px; font-weight: 600; color: var(--color-text); }
.model-option-desc { font-size: 11px; color: var(--color-text-secondary); }
.model-option-check { width: 16px; height: 16px; color: var(--color-primary); opacity: 0; }
.model-option-check svg { width: 100%; height: 100%; }
.model-option.active .model-option-check { opacity: 1; }

/* ===== WELCOME SECTION ===== */
.welcome-section {
  max-width: min(700px, 100%);
  margin: clamp(2rem, 5vh, 4rem) auto 0;
  text-align: center;
  animation: fadeIn 0.5s ease-out;
  padding: 0 1rem;
}
.welcome-title {
  font-size: clamp(1.5rem, 4vw, 2.2rem);
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 10px;
  line-height: 1.2;
}
.welcome-subtitle {
  color: var(--color-text-secondary);
  font-size: clamp(0.875rem, 2vw, 1rem);
  margin-bottom: clamp(1.5rem, 4vh, 2.5rem);
  line-height: 1.65;
  max-width: 540px;
  margin-left: auto;
  margin-right: auto;
}
.suggestions-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 10px;
  max-width: 680px;
  margin: 0 auto;
}
.suggestion-card.welcome-card {
  position: relative;
  overflow: hidden;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: clamp(12px, 2vw, 16px);
  cursor: pointer;
  transition: background var(--transition), border-color var(--transition);
  display: flex;
  gap: 12px;
  align-items: flex-start;
  text-align: left;
}
.suggestion-card.welcome-card:hover {
  background: var(--color-surface-hover);
  border-color: var(--color-primary);
}
.suggestion-card.welcome-card svg {
  width: 18px;
  height: 18px;
  color: var(--color-primary);
  flex-shrink: 0;
  margin-top: 1px;
}
.suggestion-card.welcome-card p {
  font-size: clamp(0.8rem, 1.5vw, 0.875rem);
  color: var(--color-text-secondary);
  line-height: 1.5;
  margin: 0;
}
.suggestion-card.welcome-card:hover p {
  color: var(--color-text);
}

/* ===== MODAL ===== */
.corvus-modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.75);
  backdrop-filter: blur(4px);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  opacity: 0;
  transition: opacity 0.2s;
}
.corvus-modal-overlay.visible { opacity: 1; }
.corvus-modal {
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  border-top: 2px solid var(--color-primary);
  border-radius: var(--radius-md);
  padding: 24px;
  width: 100%;
  max-width: 360px;
  transform: translateY(-10px) scale(0.98);
  transition: transform 0.2s;
}
.corvus-modal-overlay.visible .corvus-modal {
  transform: translateY(0) scale(1);
}
.corvus-modal-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 8px;
}
.corvus-modal-msg {
  font-size: 13px;
  color: var(--color-text-secondary);
  line-height: 1.6;
  margin-bottom: 20px;
}
.corvus-modal-actions {
  display: flex;
  gap: 8px;
  justify-content: flex-end;
}
.corvus-modal-btn {
  padding: 8px 16px;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  border-radius: var(--radius-sm);
  transition: all var(--transition);
  font-family: inherit;
}
.corvus-modal-btn.cancel {
  background: none;
  border: 1px solid var(--color-border);
  color: var(--color-text-secondary);
}
.corvus-modal-btn.cancel:hover {
  border-color: var(--color-text-secondary);
  color: var(--color-text);
}
.corvus-modal-btn.confirm {
  background: var(--color-primary);
  border: none;
  color: #fff;
}
.corvus-modal-btn.confirm:hover { background: var(--color-primary-hover); }

/* ===== FEEDBACK SALVO ===== */
.feedback-salvo {
  position: fixed;
  bottom: 80px;
  right: 20px;
  background: rgba(17, 17, 17, 0.95);
  border: 1px solid rgba(255,255,255,0.06);
  color: #6ee7b7;
  font-size: 12px;
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  z-index: 1000;
  opacity: 0;
  transform: translateY(8px);
  transition: all 0.2s;
  pointer-events: none;
}
.feedback-salvo.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ===== NOTIFICAÇÕES ===== */
.notification-container {
  position: fixed;
  bottom: 20px;
  right: 20px;
  z-index: 3000;
  display: flex;
  flex-direction: column;
  gap: 8px;
  pointer-events: none;
}
.notificacao {
  background: var(--color-surface-2);
  border-left: 4px solid var(--color-primary);
  padding: 12px 18px;
  border-radius: var(--radius-sm);
  box-shadow: 0 8px 30px rgba(0,0,0,0.5);
  transform: translateX(400px);
  transition: transform 0.3s, opacity 0.3s;
  color: var(--color-text);
  font-size: 13px;
  pointer-events: auto;
  max-width: 320px;
}
.notificacao.visible {
  transform: translateX(0);
}
.notificacao.erro {
  border-color: #f87171;
}
.notificacao.sucesso {
  border-color: #6ee7b7;
}

/* ===== SKELETON LOADING ===== */
.skeleton-chat-item {
  height: 44px;
  background: linear-gradient(90deg, var(--color-surface) 25%, var(--color-surface-hover) 50%, var(--color-surface) 75%);
  background-size: 200% 100%;
  animation: loading 1.5s infinite;
  border-radius: var(--radius-sm);
  margin-bottom: 4px;
}
@keyframes loading {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* ===== TELA DE LOGIN ===== */
.login-screen {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-bg);
}
.login-bg {
  position: absolute;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
}
.login-card {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 400px;
  padding: 40px 36px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-top: 2px solid var(--color-primary);
  box-shadow: 0 24px 60px rgba(0,0,0,0.6);
  border-radius: var(--radius-md);
}
.login-header {
  text-align: center;
  margin-bottom: 32px;
}
.login-logo-img {
  width: 56px;
  height: 56px;
  object-fit: contain;
  filter: drop-shadow(0 0 14px var(--color-primary-glow));
  margin-bottom: 14px;
}
.login-title {
  font-size: 26px;
  font-weight: 700;
  letter-spacing: 5px;
  color: var(--color-text);
  margin-bottom: 4px;
}
.login-subtitle {
  font-size: 11px;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--color-text-secondary);
}
.login-error {
  background: rgba(220,38,38,0.12);
  border: 1px solid rgba(220,38,38,0.35);
  color: #f87171;
  font-size: 13px;
  padding: 10px 14px;
  margin-bottom: 16px;
  border-radius: var(--radius-sm);
}
.login-form {
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.login-field {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.login-field label {
  font-size: 10px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--color-text-secondary);
}
.login-field input {
  padding: 11px 14px;
  background: #0f0f0f;
  border: 1px solid var(--color-border);
  color: var(--color-text);
  font-family: var(--font-main);
  font-size: 14px;
  border-radius: var(--radius-sm);
  outline: none;
  transition: border-color var(--transition);
  -webkit-appearance: none;
}
.login-field input:focus { border-color: var(--color-primary); }
.login-btn {
  margin-top: 4px;
  padding: 12px;
  background: var(--color-primary);
  border: none;
  color: #fff;
  font-family: var(--font-main);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  cursor: pointer;
  border-radius: var(--radius-sm);
  transition: background var(--transition);
}
.login-btn:hover { background: var(--color-primary-hover); }
.login-btn:disabled { opacity: 0.5; cursor: not-allowed; }
.login-guest-btn {
  background: none;
  border: 1px solid var(--color-border);
  color: var(--color-text-secondary);
  font-family: var(--font-main);
  font-size: 12px;
  padding: 10px;
  cursor: pointer;
  border-radius: var(--radius-sm);
  transition: all var(--transition);
}
.login-guest-btn:hover {
  border-color: rgba(220, 38, 38, 0.4);
  color: var(--color-text);
}

/* ===== RESPONSIVIDADE ===== */
@media (max-width: 768px) {
  .menu-toggle { display: flex; }
  .sidebar {
    position: fixed;
    top: var(--header-height);
    left: 0;
    bottom: 0;
    height: auto;
    transform: translateX(-100%);
    box-shadow: 4px 0 20px rgba(0,0,0,0.4);
    pointer-events: none;
  }
  .sidebar.active {
    transform: translateX(0);
    pointer-events: auto;
  }
  .sidebar-overlay { display: block; }
  .chat-messages { padding: 1rem; }
  .message { max-width: 100%; }
  .input-container { padding: 10px 12px 16px; }
  .model-dropdown { min-width: 200px; }
  .suggestions-grid { grid-template-columns: 1fr; }
  .logo-text span { display: none; }
}
@media (max-width: 480px) {
  :root {
    --sidebar-width: 88vw;
    --header-height: 54px;
  }
  .header-status span { display: none; }
  .model-selector-name { display: none; }
  .model-selector-btn { padding: 6px 8px; }
  .message-avatar { width: 28px; height: 28px; }
  .btn-send { width: 36px; height: 36px; }
}
@supports (padding-bottom: env(safe-area-inset-bottom)) {
  .input-container {
    padding-bottom: calc(clamp(1rem, 2.5vw, 1.5rem) + env(safe-area-inset-bottom));
  }
}
@media (hover: none) and (pointer: coarse) {
  .btn-new-chat,
  .btn-send,
  .model-selector-btn,
  .model-option,
  #chatList .chat-item {
    min-height: 44px;
  }
  #chatList .chat-item-actions { display: inline-flex; }
  #chatList .chat-action-btn { width: 34px; height: 34px; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}

/* ===== BUSCA NA SIDEBAR ===== */
.sidebar-search {
  display: flex;
  align-items: center;
  gap: 8px;
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 7px 10px;
  margin-bottom: 6px;
  transition: border-color var(--transition);
}
.sidebar-search:focus-within {
  border-color: rgba(220, 38, 38, 0.3);
}
.sidebar-search svg {
  width: 14px;
  height: 14px;
  stroke: var(--color-text-tertiary);
  flex-shrink: 0;
}
.sidebar-search-input {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  color: var(--color-text);
  font-family: var(--font-main);
  font-size: 12.5px;
  min-width: 0;
}
.sidebar-search-input::placeholder {
  color: var(--color-text-tertiary);
}
.sidebar-search-input::-webkit-search-cancel-button {
  -webkit-appearance: none;
}

/* ===== AGRUPAMENTO POR DATA ===== */
.chat-group {
  display: flex;
  flex-direction: column;
  gap: 2px;
  margin-bottom: 4px;
}
.chat-group-label {
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--color-text-tertiary);
  font-weight: 600;
  padding: 8px 4px 4px;
}

/* ===== BOTÃO DE CONTA ===== */
.btn-conta {
  display: flex;
  align-items: center;
  gap: 9px;
  width: 100%;
  padding: 9px 10px;
  background: transparent;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-text-secondary);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition);
  margin-top: 8px;
  text-align: left;
}
.btn-conta:hover {
  background: var(--color-surface-hover);
  border-color: rgba(220, 38, 38, 0.3);
  color: var(--color-text);
}
.btn-conta svg {
  width: 15px;
  height: 15px;
  flex-shrink: 0;
}

/* ===== MODAL DE CONTA (conforme print) ===== */
.conta-modal {
  max-width: 320px !important;
}
.conta-modal-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
}
.conta-avatar {
  width: 42px;
  height: 42px;
  background: linear-gradient(135deg, #7f1d1d, var(--color-primary));
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  font-weight: 700;
  color: #fff;
  flex-shrink: 0;
}
.conta-nome {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-text);
  line-height: 1.2;
}
.conta-cargo {
  font-size: 12px;
  color: var(--color-primary);
  margin-top: 2px;
  letter-spacing: 0.3px;
}
.conta-divider {
  height: 1px;
  background: var(--color-border);
  margin: 12px 0;
}
.conta-campo {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 6px 0;
}
.conta-label {
  font-size: 12px;
  color: var(--color-text-secondary);
}
.conta-valor {
  font-size: 12px;
  font-weight: 500;
  color: var(--color-text);
}
.conta-valor.tipo-admin { color: #f59e0b; }
.conta-valor.tipo-membro { color: #6ee7b7; }
.conta-valor.tipo-convidado { color: var(--color-text-secondary); }

/* Botão de alternância de tema no modal */
.theme-toggle-btn {
  background: var(--color-surface-hover);
  border: 1px solid var(--color-border);
  color: var(--color-text);
  border-radius: var(--radius-sm);
  padding: 4px 8px;
  font-size: 11px;
  cursor: pointer;
  transition: all var(--transition);
}
.theme-toggle-btn:hover {
  background: var(--color-surface);
  border-color: var(--color-primary);
}

.logout-btn {
  background: rgba(220, 38, 38, 0.1) !important;
  color: #f87171 !important;
  border: 1px solid rgba(220, 38, 38, 0.2) !important;
}
.logout-btn:hover {
  background: rgba(220, 38, 38, 0.2) !important;
}
/* ===== SELETOR DE TEMA (3 botões) ===== */
.theme-switcher {
  display: flex;
  gap: 6px;
}

.theme-opt {
  padding: 5px 10px;
  min-width: 56px;
  height: 32px;
  border-radius: var(--radius-sm);
  border: 1.5px solid var(--color-border);
  background: var(--color-surface-hover);
  cursor: pointer;
  font-size: 12px;
  font-weight: 500;
  font-family: var(--font-main);
  color: var(--color-text-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition);
  -webkit-tap-highlight-color: transparent;
  white-space: nowrap;
}

.theme-opt:hover {
  border-color: var(--color-primary);
  background: rgba(220, 38, 38, 0.08);
}

.theme-opt.active {
  border-color: var(--color-primary);
  background: rgba(220, 38, 38, 0.12);
  box-shadow: 0 0 0 2px rgba(220, 38, 38, 0.15);
}

/* ===== META DOS CHATS (hora/data) ===== */
.chat-item-meta {
  font-size: 11px;
  color: var(--color-text-tertiary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  margin-top: 1px;
}

/* ===== OVERRIDES TEMA CLARO — melhorias visuais ===== */
[data-theme="light"] .message.corvus .message-bubble {
  background: #f8f8f8;
  border-color: #e0e0e0;
}

[data-theme="light"] .message.user .message-bubble {
  background: #efefef;
  border-color: #d8d8d8;
}

[data-theme="light"] .chat-item.active {
  background: rgba(220, 38, 38, 0.06);
  border-color: rgba(220, 38, 38, 0.3);
}

[data-theme="light"] .btn-new-chat {
  color: #444;
}

[data-theme="light"] .welcome-title {
  color: #111;
}

[data-theme="light"] .input-wrapper {
  background: #ffffff;
  border-color: #d4d4d4;
}

[data-theme="light"] #messageInput {
  color: #111;
}

[data-theme="light"] .model-selector-btn {
  color: #555;
}

[data-theme="light"] .corvus-modal {
  background: #ffffff;
}

[data-theme="light"] .model-dropdown {
  background: #ffffff;
  box-shadow: 0 8px 32px rgba(0,0,0,0.12);
}

[data-theme="light"] .gradient-orb {
  opacity: 0.06;
}