/* ===== DATADOG VIETNAM — WARM COFFEE THEME ===== */

@import url('https://fonts.googleapis.com/css2?family=Be+Vietnam+Pro:wght@400;500;600;700&display=swap');

:root {
  /* Backgrounds */
  --bg-page: #FBF7F1;
  --bg-card: #FFFDF9;
  --bg-soft: #FAF1E4;
  --bg-hero: #F6E7CE;
  --bg-highlight: #FFF8EE;

  /* Text */
  --text-primary: #3B2117;
  --text-secondary: #70432D;
  --text-muted: #907668;
  --text-placeholder: #A08B7E;
  --heading: #3B2117;
  --body: #70432D;
  --secondary: #806554;
  --muted: #907668;

  /* Primary brand / actions */
  --brand-orange: #F26A21;
  --brand-orange-hover: #D95417;
  --brand-orange-active: #C84E17;
  --brand-orange-soft: #FBE0CA;

  /* Secondary accent */
  --brand-gold: #E7A637;
  --brand-gold-soft: #FFF1CF;

  /* Green / success */
  --green: #72B94D;
  --green-dark: #687A43;
  --green-soft: #E8F4DD;

  /* Borders */
  --border-light: #EBDCCB;
  --border-medium: #D9B891;
  --border-focus: #F26A21;
  --border-divider: #EADCCB;

  /* Status */
  --success: #72B94D;
  --success-bg: #EDF6E5;
  --success-border: #A8CB8E;
  --success-text: #496431;

  --error: #C94C32;
  --error-bg: #FAE5DE;
  --error-border: #E2A08D;
  --error-text: #A23B29;

  /* Coffee colors */
  --coffee-dark: #3B2117;
  --coffee-medium: #704126;
  --coffee-caramel: #B7642B;
  --cream: #F3E9D9;

  /* Shadows */
  --shadow-card: 0 8px 24px rgba(83, 47, 25, 0.08);
  --shadow-card-hover: 0 12px 30px rgba(83, 47, 25, 0.12);
  --shadow-button: 0 6px 14px rgba(242, 106, 33, 0.20);

  /* Aliases for existing components */
  --bg-primary: var(--bg-page);
  --bg-secondary: var(--bg-soft);
  --bg-tertiary: var(--bg-card);
  --text-accent: var(--text-primary);
  --border-color: var(--border-light);

  --primary-gradient: linear-gradient(90deg, #F58B24 0%, #F26A21 100%);
  --secondary-gradient: linear-gradient(135deg, #FBE0CA 0%, #F6E7CE 100%);
  --success-gradient: linear-gradient(135deg, #E8F4DD 0%, #72B94D 100%);
  --warning-gradient: linear-gradient(135deg, #FFF5E5 0%, #F6E7CE 55%, #F0D6B8 100%);
  --danger-gradient: linear-gradient(135deg, #C94C32 0%, #E7A637 100%);

  --shadow-sm: 0 1px 2px 0 rgba(83, 47, 25, 0.05);
  --shadow-md: 0 4px 10px rgba(83, 47, 25, 0.08);
  --shadow-lg: var(--shadow-card);
  --shadow-xl: var(--shadow-card-hover);
}

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

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

body {
  font-family: 'Be Vietnam Pro', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background:
    radial-gradient(circle at top, rgba(246, 231, 206, 0.55), transparent 35%),
    var(--bg-page);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
}

h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.3;
  margin-bottom: 1rem;
  color: var(--heading);
}

h1 {
  font-size: 2.25rem;
  color: var(--heading);
}

h2 {
  font-size: 1.875rem;
  color: var(--heading);
}

h3 {
  font-size: 1.5rem;
  color: var(--text-primary);
}

p {
  margin-bottom: 1rem;
  color: var(--text-secondary);
}

button, .btn {
  font-family: inherit;
  font-weight: 500;
  border: none;
  border-radius: 12px;
  padding: 0.75rem 1.5rem;
  font-size: 0.9rem;
  cursor: pointer;
  transition: background 0.2s ease, transform 0.15s ease, box-shadow 0.2s ease, border-color 0.2s ease;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  text-decoration: none;
  position: relative;
  overflow: hidden;
}

button:focus-visible, .btn:focus-visible, a:focus-visible, input:focus-visible, textarea:focus-visible {
  outline: 3px solid rgba(242, 106, 33, 0.30);
  outline-offset: 2px;
}

button.primary, .btn-primary {
  background: var(--primary-gradient);
  color: #FFFFFF;
  box-shadow: var(--shadow-button);
  font-weight: 700;
}

button.primary:hover, .btn-primary:hover {
  background: linear-gradient(90deg, #E8791D 0%, #D95417 100%);
}

button.primary:active, .btn-primary:active {
  transform: translateY(1px);
}

button:disabled, .btn:disabled {
  background: #E9DED2;
  color: #A89484;
  box-shadow: none;
  cursor: not-allowed;
}

button.secondary, .btn-secondary {
  background: var(--bg-soft);
  color: var(--text-primary);
  border: 1px solid var(--border-light);
}

button.secondary:hover, .btn-secondary:hover {
  background: #F5E0C4;
  border-color: var(--border-medium);
}

button.danger, .btn-danger {
  background: var(--primary-gradient);
  color: #FFFFFF;
  font-size: 1.1rem;
  padding: 1rem 2rem;
  box-shadow: var(--shadow-button);
  font-weight: 700;
}

button.danger:hover, .btn-danger:hover {
  background: linear-gradient(90deg, #E8791D 0%, #D95417 100%);
}

input, textarea, select {
  font-family: inherit;
  background: #FFFCF7;
  border: 1.5px solid #E6CDB3;
  border-radius: 12px;
  padding: 0.875rem 1rem;
  font-size: 0.9rem;
  color: var(--text-primary);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
  width: 100%;
}

input:focus, textarea:focus, select:focus {
  outline: none;
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px rgba(242, 106, 33, 0.12);
  background: #FFFCF7;
}

input::placeholder, textarea::placeholder {
  color: var(--text-placeholder);
}

.window, .card {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: 18px;
  padding: 2rem;
  box-shadow: var(--shadow-card);
  margin: 2rem auto;
  max-width: 600px;
  position: relative;
}

ul {
  list-style: none;
  padding: 0;
}

li {
  margin-bottom: 1rem;
}

li a {
  display: flex;
  align-items: center;
  padding: 1rem 1.5rem;
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: 16px;
  text-decoration: none;
  color: var(--text-primary);
  font-weight: 500;
  transition: all 0.2s ease;
  position: relative;
  overflow: hidden;
}

li a:hover {
  background: var(--bg-highlight);
  transform: translateX(4px);
  box-shadow: var(--shadow-card);
  border-color: var(--border-medium);
}

.chat-window {
  background: var(--bg-highlight);
  border: 1px solid var(--border-light);
  border-radius: 16px;
  padding: 1.5rem;
  max-height: 70vh;
  overflow-y: auto;
  margin-bottom: 1.5rem;
}

.chat-window::-webkit-scrollbar {
  width: 6px;
}

.chat-window::-webkit-scrollbar-track {
  background: var(--bg-soft);
  border-radius: 3px;
}

.chat-window::-webkit-scrollbar-thumb {
  background: var(--border-medium);
  border-radius: 3px;
}

.bubble {
  margin: 1rem 0;
  padding: 1rem 1.25rem;
  border-radius: 20px;
  max-width: 80%;
  line-height: 1.5;
  position: relative;
  animation: fadeInUp 0.3s ease;
}

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

.bubble.user {
  background: var(--primary-gradient);
  color: #FFFFFF;
  margin-left: auto;
  border-bottom-right-radius: 8px;
  box-shadow: var(--shadow-button);
}

.bubble.assistant {
  background: var(--bg-soft);
  color: var(--text-primary);
  margin-right: auto;
  border: 1px solid var(--border-light);
  border-bottom-left-radius: 8px;
}

.input-section {
  display: flex;
  gap: 0.75rem;
  align-items: stretch;
}

.input-section input {
  flex: 1;
  margin: 0;
}

@media (max-width: 768px) {
  .window, .card {
    margin: 1rem;
    padding: 1.25rem;
    max-width: calc(100% - 2rem);
  }

  h1 {
    font-size: 1.875rem;
  }

  h2 {
    font-size: 1.5rem;
  }

  .input-section {
    flex-direction: column;
  }

  .bubble {
    max-width: 95%;
  }
}

.loading {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 2px solid var(--border-light);
  border-radius: 50%;
  border-top-color: var(--brand-orange);
  animation: spin 1s ease-in-out infinite;
}

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

.status-indicator {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  background: var(--bg-soft);
  border-radius: 20px;
  font-size: 0.85rem;
  border: 1px solid var(--border-light);
  color: var(--text-secondary);
}

.status-indicator.success {
  background: var(--success-bg);
  color: var(--success-text);
  border-color: var(--success-border);
}

.status-indicator.warning {
  background: var(--brand-orange-soft);
  color: var(--brand-orange-active);
  border-color: var(--border-medium);
}

.status-indicator.error {
  background: var(--error-bg);
  color: var(--error-text);
  border-color: var(--error-border);
}

.text-center { text-align: center; }
.mt-1 { margin-top: 0.25rem; }
.mt-2 { margin-top: 0.5rem; }
.mt-3 { margin-top: 0.75rem; }
.mt-4 { margin-top: 1rem; }
.mb-1 { margin-bottom: 0.25rem; }
.mb-2 { margin-bottom: 0.5rem; }
.mb-3 { margin-bottom: 0.75rem; }
.mb-4 { margin-bottom: 1rem; }