/* ============================================
   NARDIKO IA — Theme: Verde Musgo Royal + Amarelo Dourado
   ============================================ */

/* === CSS Variables === */
:root {
  /* Verde Musgo Royal */
  --ndk-green-dark: #1A3A0A;
  --ndk-green: #2D5016;
  --ndk-green-mid: #3D6B1E;
  --ndk-green-light: #4A8028;
  --ndk-green-pale: #E8F5E0;

  /* Amarelo Dourado */
  --ndk-gold-dark: #B8922F;
  --ndk-gold: #D4A843;
  --ndk-gold-light: #E8C76A;
  --ndk-gold-pale: #FFF8E7;

  /* Neutros */
  --ndk-black: #1A1A1A;
  --ndk-dark: #2A2A2A;
  --ndk-gray: #4A4A4A;
  --ndk-gray-light: #8A8A8A;
  --ndk-white: #F5F5F0;
  --ndk-white-pure: #FFFFFF;

  /* Status */
  --ndk-success: #4CAF50;
  --ndk-warning: #FF9800;
  --ndk-error: #F44336;
  --ndk-info: #2196F3;

  /* Tipografia */
  --ndk-font-title: 'Oswald', 'Roboto Condensed', sans-serif;
  --ndk-font-body: 'Roboto', 'Fira Sans', sans-serif;
  --ndk-font-mono: 'Fira Code', 'Source Code Pro', monospace;

  /* Espaçamento */
  --ndk-space-xs: 4px;
  --ndk-space-sm: 8px;
  --ndk-space-md: 16px;
  --ndk-space-lg: 24px;
  --ndk-space-xl: 32px;
  --ndk-space-2xl: 48px;

  /* Bordas */
  --ndk-radius-sm: 4px;
  --ndk-radius-md: 8px;
  --ndk-radius-lg: 12px;
  --ndk-radius-xl: 16px;
  --ndk-radius-full: 9999px;

  /* Sombras */
  --ndk-shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.3);
  --ndk-shadow-md: 0 4px 8px rgba(0, 0, 0, 0.4);
  --ndk-shadow-lg: 0 8px 16px rgba(0, 0, 0, 0.5);
  --ndk-shadow-glow: 0 0 20px rgba(212, 168, 67, 0.3);

  /* Transições */
  --ndk-transition-fast: 150ms ease;
  --ndk-transition-normal: 250ms ease;
  --ndk-transition-slow: 400ms ease;
}

/* === Reset & Base === */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--ndk-font-body);
  background-color: var(--ndk-black);
  color: var(--ndk-white);
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
}

/* === Scrollbar === */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: var(--ndk-green-dark);
}

::-webkit-scrollbar-thumb {
  background: var(--ndk-gold-dark);
  border-radius: var(--ndk-radius-full);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--ndk-gold);
}

/* === Typography === */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--ndk-font-title);
  font-weight: 700;
  color: var(--ndk-gold);
  line-height: 1.2;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }
h5 { font-size: 1rem; }

p {
  margin-bottom: var(--ndk-space-md);
  color: var(--ndk-white);
}

a {
  color: var(--ndk-gold);
  text-decoration: none;
  transition: color var(--ndk-transition-fast);
}

a:hover {
  color: var(--ndk-gold-light);
}

/* === Layout === */
.app-container {
  display: flex;
  min-height: 100vh;
}

.sidebar {
  width: 260px;
  background: var(--ndk-green-dark);
  border-right: 1px solid var(--ndk-green-mid);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  z-index: 100;
  transition: transform var(--ndk-transition-normal);
}

.sidebar-header {
  padding: var(--ndk-space-lg);
  border-bottom: 1px solid var(--ndk-green-mid);
  display: flex;
  align-items: center;
  gap: var(--ndk-space-md);
}

.sidebar-logo {
  width: 40px;
  height: 40px;
  fill: var(--ndk-gold);
}

.sidebar-title {
  font-family: var(--ndk-font-title);
  font-size: 1.25rem;
  color: var(--ndk-gold);
  text-transform: uppercase;
}

.sidebar-nav {
  flex: 1;
  padding: var(--ndk-space-md) 0;
  overflow-y: auto;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: var(--ndk-space-md);
  padding: var(--ndk-space-md) var(--ndk-space-lg);
  color: var(--ndk-white);
  transition: all var(--ndk-transition-fast);
  border-left: 3px solid transparent;
  cursor: pointer;
}

.nav-item:hover {
  background: rgba(61, 107, 30, 0.3);
  color: var(--ndk-gold-light);
}

.nav-item.active {
  background: rgba(212, 168, 67, 0.1);
  border-left-color: var(--ndk-gold);
  color: var(--ndk-gold);
}

.nav-item-icon {
  font-size: 1.25rem;
  width: 24px;
  text-align: center;
}

.nav-item-label {
  font-size: 0.9rem;
  font-weight: 500;
}

.sidebar-footer {
  padding: var(--ndk-space-md) var(--ndk-space-lg);
  border-top: 1px solid var(--ndk-green-mid);
}

.main-content {
  flex: 1;
  margin-left: 260px;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.header {
  height: 60px;
  background: var(--ndk-green-dark);
  border-bottom: 1px solid var(--ndk-green-mid);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--ndk-space-lg);
  position: sticky;
  top: 0;
  z-index: 50;
}

.header-title {
  font-family: var(--ndk-font-title);
  font-size: 1.1rem;
  color: var(--ndk-gold);
  text-transform: uppercase;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: var(--ndk-space-md);
}

.content {
  flex: 1;
  padding: var(--ndk-space-lg);
  overflow-y: auto;
}

/* === Buttons === */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--ndk-space-sm);
  padding: var(--ndk-space-sm) var(--ndk-space-lg);
  border: none;
  border-radius: var(--ndk-radius-md);
  font-family: var(--ndk-font-body);
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--ndk-transition-fast);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.btn-primary {
  background: var(--ndk-green);
  color: var(--ndk-gold);
  border: 1px solid var(--ndk-green-mid);
}

.btn-primary:hover {
  background: var(--ndk-green-mid);
  box-shadow: var(--ndk-shadow-glow);
}

.btn-secondary {
  background: transparent;
  color: var(--ndk-gold);
  border: 1px solid var(--ndk-gold);
}

.btn-secondary:hover {
  background: rgba(212, 168, 67, 0.1);
}

.btn-danger {
  background: var(--ndk-error);
  color: var(--ndk-white-pure);
}

.btn-danger:hover {
  background: #D32F2F;
}

.btn-icon {
  width: 40px;
  height: 40px;
  padding: 0;
  border-radius: var(--ndk-radius-full);
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* === Inputs === */
.input-group {
  margin-bottom: var(--ndk-space-md);
}

.input-label {
  display: block;
  margin-bottom: var(--ndk-space-xs);
  color: var(--ndk-gold);
  font-size: 0.85rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.input {
  width: 100%;
  padding: var(--ndk-space-md);
  background: var(--ndk-dark);
  border: 1px solid var(--ndk-green-mid);
  border-radius: var(--ndk-radius-md);
  color: var(--ndk-white);
  font-family: var(--ndk-font-body);
  font-size: 1rem;
  transition: all var(--ndk-transition-fast);
}

.input:focus {
  outline: none;
  border-color: var(--ndk-gold);
  box-shadow: 0 0 0 3px rgba(212, 168, 67, 0.2);
}

.input::placeholder {
  color: var(--ndk-gray-light);
}

/* === Cards === */
.card {
  background: var(--ndk-green-dark);
  border: 1px solid var(--ndk-green-mid);
  border-radius: var(--ndk-radius-lg);
  padding: var(--ndk-space-lg);
  transition: all var(--ndk-transition-fast);
}

.card:hover {
  border-color: var(--ndk-gold);
  box-shadow: var(--ndk-shadow-md);
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--ndk-space-md);
  padding-bottom: var(--ndk-space-md);
  border-bottom: 1px solid var(--ndk-green-mid);
}

.card-title {
  font-family: var(--ndk-font-title);
  font-size: 1.1rem;
  color: var(--ndk-gold);
  text-transform: uppercase;
}

.card-body {
  color: var(--ndk-white);
}

/* === Chat Components === */
.chat-container {
  display: flex;
  flex-direction: column;
  height: calc(100vh - 60px);
}

.chat-messages {
  flex: 1;
  overflow-y: auto;
  padding: var(--ndk-space-lg);
}

.chat-message {
  display: flex;
  gap: var(--ndk-space-md);
  margin-bottom: var(--ndk-space-lg);
  animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

.chat-message.user {
  flex-direction: row-reverse;
}

.message-avatar {
  width: 36px;
  height: 36px;
  border-radius: var(--ndk-radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.85rem;
  flex-shrink: 0;
}

.chat-message.assistant .message-avatar {
  background: var(--ndk-green);
  color: var(--ndk-gold);
  border: 1px solid var(--ndk-gold);
}

.chat-message.user .message-avatar {
  background: var(--ndk-gold);
  color: var(--ndk-green-dark);
}

.message-content {
  max-width: 70%;
  padding: var(--ndk-space-md);
  border-radius: var(--ndk-radius-lg);
  line-height: 1.5;
}

.chat-message.assistant .message-content {
  background: var(--ndk-green-dark);
  border: 1px solid var(--ndk-green-mid);
  border-top-left-radius: var(--ndk-radius-sm);
}

.chat-message.user .message-content {
  background: var(--ndk-gold-dark);
  color: var(--ndk-white-pure);
  border-top-right-radius: var(--ndk-radius-sm);
}

.chat-input-container {
  padding: var(--ndk-space-md) var(--ndk-space-lg);
  background: var(--ndk-green-dark);
  border-top: 1px solid var(--ndk-green-mid);
}

.chat-input-wrapper {
  display: flex;
  gap: var(--ndk-space-md);
  align-items: flex-end;
  max-width: 900px;
  margin: 0 auto;
}

.chat-input {
  flex: 1;
  padding: var(--ndk-space-md) var(--ndk-space-lg);
  background: var(--ndk-dark);
  border: 1px solid var(--ndk-green-mid);
  border-radius: var(--ndk-radius-lg);
  color: var(--ndk-white);
  font-family: var(--ndk-font-body);
  font-size: 1rem;
  resize: none;
  min-height: 48px;
  max-height: 200px;
  transition: border-color var(--ndk-transition-fast);
}

.chat-input:focus {
  outline: none;
  border-color: var(--ndk-gold);
}

.chat-send {
  width: 48px;
  height: 48px;
  border-radius: var(--ndk-radius-full);
  background: var(--ndk-gold);
  color: var(--ndk-green-dark);
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  transition: all var(--ndk-transition-fast);
}

.chat-send:hover {
  background: var(--ndk-gold-light);
  box-shadow: var(--ndk-shadow-glow);
}

/* === Login Page === */
.login-container {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  background: linear-gradient(135deg, var(--ndk-black) 0%, var(--ndk-green-dark) 100%);
}

.login-card {
  width: 100%;
  max-width: 400px;
  background: var(--ndk-green-dark);
  border: 1px solid var(--ndk-green-mid);
  border-radius: var(--ndk-radius-xl);
  padding: var(--ndk-space-2xl);
  box-shadow: var(--ndk-shadow-lg);
}

.login-logo {
  text-align: center;
  margin-bottom: var(--ndk-space-xl);
}

.login-logo svg {
  width: 80px;
  height: 80px;
  fill: var(--ndk-gold);
}

.login-title {
  text-align: center;
  font-family: var(--ndk-font-title);
  font-size: 1.5rem;
  color: var(--ndk-gold);
  margin-bottom: var(--ndk-space-xs);
}

.login-subtitle {
  text-align: center;
  color: var(--ndk-gray-light);
  font-size: 0.9rem;
  margin-bottom: var(--ndk-space-xl);
}

.login-form .input {
  margin-bottom: var(--ndk-space-md);
}

.login-btn {
  width: 100%;
  padding: var(--ndk-space-md);
  margin-top: var(--ndk-space-md);
}

.login-error {
  background: rgba(244, 67, 54, 0.1);
  border: 1px solid var(--ndk-error);
  border-radius: var(--ndk-radius-md);
  padding: var(--ndk-space-md);
  margin-bottom: var(--ndk-space-md);
  color: var(--ndk-error);
  font-size: 0.9rem;
  display: none;
}

.login-error.show {
  display: block;
}

/* === Model Selector === */
.model-selector {
  display: flex;
  gap: var(--ndk-space-sm);
  padding: var(--ndk-space-sm);
  background: var(--ndk-dark);
  border-radius: var(--ndk-radius-md);
  margin-bottom: var(--ndk-space-md);
}

.model-option {
  padding: var(--ndk-space-sm) var(--ndk-space-md);
  border-radius: var(--ndk-radius-sm);
  font-size: 0.8rem;
  cursor: pointer;
  transition: all var(--ndk-transition-fast);
  border: 1px solid transparent;
  color: var(--ndk-gray-light);
}

.model-option:hover {
  color: var(--ndk-white);
  background: var(--ndk-green-dark);
}

.model-option.active {
  background: var(--ndk-green);
  color: var(--ndk-gold);
  border-color: var(--ndk-gold);
}

/* === Status Badge === */
.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--ndk-space-xs);
  padding: 2px var(--ndk-space-sm);
  border-radius: var(--ndk-radius-full);
  font-size: 0.75rem;
  font-weight: 500;
}

.badge-success {
  background: rgba(76, 175, 80, 0.2);
  color: var(--ndk-success);
}

.badge-warning {
  background: rgba(255, 152, 0, 0.2);
  color: var(--ndk-warning);
}

.badge-error {
  background: rgba(244, 67, 54, 0.2);
  color: var(--ndk-error);
}

/* === Loading === */
.loading {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--ndk-space-xl);
}

.loading-spinner {
  width: 40px;
  height: 40px;
  border: 3px solid var(--ndk-green-mid);
  border-top-color: var(--ndk-gold);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* === Responsive === */
@media (max-width: 768px) {
  .sidebar {
    transform: translateX(-100%);
  }

  .sidebar.open {
    transform: translateX(0);
  }

  .main-content {
    margin-left: 0;
  }

  .chat-message .message-content {
    max-width: 85%;
  }
}

/* === Utilities === */
.text-gold { color: var(--ndk-gold); }
.text-green { color: var(--ndk-green-light); }
.text-muted { color: var(--ndk-gray-light); }
.text-center { text-align: center; }
.text-right { text-align: right; }

.mt-1 { margin-top: var(--ndk-space-xs); }
.mt-2 { margin-top: var(--ndk-space-sm); }
.mt-3 { margin-top: var(--ndk-space-md); }
.mt-4 { margin-top: var(--ndk-space-lg); }

.mb-1 { margin-bottom: var(--ndk-space-xs); }
.mb-2 { margin-bottom: var(--ndk-space-sm); }
.mb-3 { margin-bottom: var(--ndk-space-md); }
.mb-4 { margin-bottom: var(--ndk-space-lg); }

.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.gap-1 { gap: var(--ndk-space-xs); }
.gap-2 { gap: var(--ndk-space-sm); }
.gap-3 { gap: var(--ndk-space-md); }
.gap-4 { gap: var(--ndk-space-lg); }

.hidden { display: none !important; }
.visible { visibility: visible; }
.invisible { visibility: hidden; }