/* ============================================================
   SpeakAwesomely Smart Reply Assistant v2.0
   Modern Premium CSS with Enhanced Design
   ============================================================ */

:root {
  /* Primary Colors */
  --clr-primary: #6366f1;
  --clr-primary-light: #818cf8;
  --clr-primary-dark: #4f46e5;
  --clr-primary-glow: rgba(99, 102, 241, 0.25);

  /* Accent Colors */
  --clr-accent: #ec4899;
  --clr-accent-light: #f472b6;
  --clr-accent-glow: rgba(236, 72, 153, 0.25);

  /* Backgrounds */
  --clr-bg: #ffffff;
  --clr-bg-dark: #f9fafb;
  --clr-surface: #f3f4f6;
  --clr-surface-hover: #e5e7eb;

  /* Text Colors */
  --clr-text: #1f2937;
  --clr-text-light: #6b7280;
  --clr-text-lighter: #9ca3af;
  --clr-text-muted: #d1d5db;

  /* Borders */
  --clr-border: #e5e7eb;
  --clr-border-light: #f3f4f6;

  /* Success/Warning */
  --clr-success: #10b981;
  --clr-warning: #f59e0b;
  --clr-error: #ef4444;

  /* Typography */
  --font-main: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue', sans-serif;
  --font-mono: 'SF Mono', 'Monaco', 'Inconsolata', 'Fira Code', monospace;

  /* Spacing & Sizing */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --radius-xl: 20px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 12px 32px rgba(0, 0, 0, 0.12);
  --shadow-xl: 0 20px 48px rgba(0, 0, 0, 0.16);
  --shadow-glow: 0 0 24px rgba(99, 102, 241, 0.15);

  /* Animations */
  --ease-smooth: cubic-bezier(0.4, 0, 0.2, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);

  /* Widget Dimensions */
  --chat-width: 420px;
  --chat-height: 600px;
}

/* Dark mode support */
@media (prefers-color-scheme: dark) {
  :root {
    --clr-bg: #111827;
    --clr-bg-dark: #1f2937;
    --clr-surface: #111827;
    --clr-surface-hover: #1f2937;
    --clr-text: #f3f4f6;
    --clr-text-light: #d1d5db;
    --clr-text-lighter: #9ca3af;
    --clr-border: #374151;
    --clr-border-light: #1f2937;
  }
}

/* ============================================================
   RESET & BASE STYLES
   ============================================================ */
.spkawesome-ai-chat-widget *,
.spkawesome-ai-chat-widget *::before,
.spkawesome-ai-chat-widget *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

.spkawesome-ai-chat-widget {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 99999;
  font-family: var(--font-main);
  line-height: 1.5;
}

/* ============================================================
   TOGGLE BUTTON
   ============================================================ */
.spkawesome-ai-toggle-btn {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--clr-primary) 0%, var(--clr-accent) 100%);
  color: white;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-lg);
  transition: all 0.3s var(--ease-smooth);
  font-size: 24px;
  padding: 0;
  line-height: 1;
}

.spkawesome-ai-toggle-btn:hover {
  transform: scale(1.1) translateY(-2px);
  box-shadow: var(--shadow-xl), var(--shadow-glow);
}

.spkawesome-ai-toggle-btn:active {
  transform: scale(0.95);
}

.spkawesome-ai-toggle-btn svg {
  width: 28px;
  height: 28px;
  stroke-width: 2.5;
}

/* Hidden state */
.spkawesome-ai-hidden {
  display: none !important;
}

.spkawesome-ai-open .spkawesome-ai-toggle-btn {
  opacity: 0;
  pointer-events: none;
  transform: scale(0.8);
}

/* ============================================================
   CHAT WINDOW
   ============================================================ */
.spkawesome-ai-chat-window {
  position: absolute;
  bottom: 90px;
  right: 0;
  width: var(--chat-width);
  height: var(--chat-height);
  background: var(--clr-bg);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
  border: 1px solid var(--clr-border);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  animation: slideUp 0.4s var(--ease-smooth);
  opacity: 1;
  transition: opacity 0.3s var(--ease-smooth);
}

.spkawesome-ai-chat-window.spkawesome-ai-hidden {
  animation: slideDown 0.3s var(--ease-smooth) forwards;
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(16px) scale(0.95);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

@keyframes slideDown {
  from {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
  to {
    opacity: 0;
    transform: translateY(16px) scale(0.95);
  }
}

/* ============================================================
   HEADER
   ============================================================ */
.spkawesome-ai-chat-header {
  padding: 16px 20px;
  background: linear-gradient(135deg, var(--clr-primary) 0%, var(--clr-accent) 100%);
  color: white;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-shrink: 0;
  border-bottom: none;
}

.spkawesome-ai-header-content h3 {
  margin: 0;
  font-size: 16px;
  font-weight: 700;
  letter-spacing: -0.5px;
  margin-bottom: 2px;
}

.spkawesome-ai-header-content p {
  margin: 0;
  font-size: 12px;
  opacity: 0.9;
  font-weight: 500;
}

.spkawesome-ai-close-btn {
  background: rgba(255, 255, 255, 0.2);
  border: none;
  color: white;
  width: 32px;
  height: 32px;
  border-radius: var(--radius-md);
  cursor: pointer;
  font-size: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s var(--ease-smooth);
  padding: 0;
  line-height: 1;
}

.spkawesome-ai-close-btn:hover {
  background: rgba(255, 255, 255, 0.3);
  transform: rotate(90deg);
}

/* ============================================================
   MESSAGES AREA
   ============================================================ */
.spkawesome-ai-chat-messages {
  flex: 1;
  overflow-y: auto;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  scroll-behavior: smooth;
  background: var(--clr-bg);
}

.spkawesome-ai-chat-messages::-webkit-scrollbar {
  width: 6px;
}

.spkawesome-ai-chat-messages::-webkit-scrollbar-track {
  background: transparent;
}

.spkawesome-ai-chat-messages::-webkit-scrollbar-thumb {
  background: var(--clr-border);
  border-radius: 3px;
}

.spkawesome-ai-chat-messages::-webkit-scrollbar-thumb:hover {
  background: var(--clr-text-lighter);
}

/* System Message */
.spkawesome-ai-system-message {
  background: var(--clr-surface);
  padding: 12px 14px;
  border-radius: var(--radius-lg);
  font-size: 13px;
  color: var(--clr-text-light);
  border: 1px solid var(--clr-border);
  animation: fadeIn 0.4s var(--ease-smooth);
}

/* Chat Messages */
.spkawesome-ai-chat-msg {
  display: flex;
  flex-direction: column;
  animation: msgIn 0.3s var(--ease-smooth);
}

.spkawesome-ai-msg-user {
  align-items: flex-end;
}

.spkawesome-ai-msg-bot {
  align-items: flex-start;
}

.spkawesome-ai-bubble {
  max-width: 85%;
  padding: 10px 14px;
  border-radius: var(--radius-lg);
  font-size: 14px;
  line-height: 1.6;
  word-wrap: break-word;
}

.spkawesome-ai-msg-user .spkawesome-ai-bubble {
  background: linear-gradient(135deg, var(--clr-primary) 0%, var(--clr-primary-dark) 100%);
  color: white;
  border-radius: 16px 16px 4px 16px;
  box-shadow: var(--shadow-md);
}

.spkawesome-ai-msg-bot .spkawesome-ai-bubble {
  background: var(--clr-surface);
  color: var(--clr-text);
  border: 1px solid var(--clr-border);
  border-radius: 16px 16px 16px 4px;
}

.spkawesome-ai-bubble.spkawesome-ai-error {
  background: rgba(239, 68, 68, 0.1);
  color: var(--clr-error);
  border-color: rgba(239, 68, 68, 0.3);
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(-8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes msgIn {
  from {
    opacity: 0;
    transform: translateY(8px) scale(0.95);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

/* Source Label */
.spkawesome-ai-msg-label {
  font-size: 11px;
  font-weight: 600;
  color: var(--clr-text-lighter);
  margin-bottom: 6px;
  display: flex;
  align-items: center;
  gap: 6px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.spkawesome-ai-source-groq,
.spkawesome-ai-source-gemini {
  color: var(--clr-primary-light);
}

.spkawesome-ai-source-database {
  color: var(--clr-success);
}

/* Typing Indicator */
.spkawesome-ai-typing {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 12px 14px;
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-lg);
  width: fit-content;
  animation: fadeIn 0.3s var(--ease-smooth);
}

.spkawesome-ai-typing span {
  width: 6px;
  height: 6px;
  background: var(--clr-primary);
  border-radius: 50%;
  animation: typingBounce 1.4s ease-in-out infinite;
}

.spkawesome-ai-typing span:nth-child(2) {
  animation-delay: 0.2s;
  background: var(--clr-accent);
}

.spkawesome-ai-typing span:nth-child(3) {
  animation-delay: 0.4s;
}

@keyframes typingBounce {
  0%, 60%, 100% {
    transform: translateY(0);
  }
  30% {
    transform: translateY(-6px);
  }
}

/* ============================================================
   RESPONSE CARDS
   ============================================================ */
.spkawesome-ai-response-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  width: 100%;
}

.spkawesome-ai-response-card {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-lg);
  padding: 12px;
  animation: cardIn 0.3s var(--ease-spring);
  transition: all 0.2s var(--ease-smooth);
  cursor: pointer;
}

.spkawesome-ai-response-card:hover {
  border-color: var(--clr-primary);
  background: var(--clr-border-light);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

@keyframes cardIn {
  from {
    opacity: 0;
    transform: translateY(8px) scale(0.98);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

.spkawesome-ai-card-text {
  font-size: 13px;
  color: var(--clr-text);
  line-height: 1.6;
  margin: 0 0 8px 0;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--clr-border);
}

.spkawesome-ai-copy-btn {
  background: var(--clr-primary);
  color: white;
  border: none;
  border-radius: var(--radius-md);
  padding: 5px 10px;
  font-size: 11px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s var(--ease-smooth);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.spkawesome-ai-copy-btn:hover {
  background: var(--clr-primary-dark);
  transform: scale(1.05);
}

.spkawesome-ai-copy-btn:active {
  transform: scale(0.95);
}

.spkawesome-ai-copy-btn.copied {
  background: var(--clr-success);
}

/* ============================================================
   CONTROLS
   ============================================================ */
.spkawesome-ai-chat-controls {
  padding: 12px;
  border-top: 1px solid var(--clr-border);
  display: flex;
  flex-direction: column;
  gap: 12px;
  flex-shrink: 0;
  background: var(--clr-bg);
}

/* Tone Selector */
.spkawesome-ai-tone-selector {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.spkawesome-ai-tone-selector label {
  font-size: 11px;
  font-weight: 700;
  color: var(--clr-text-light);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.spkawesome-ai-tone-dropdown {
  width: 100%;
  padding: 8px 12px;
  border: 1px solid var(--clr-border);
  background: var(--clr-surface);
  color: var(--clr-text);
  border-radius: var(--radius-md);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s var(--ease-smooth);
  font-family: var(--font-main);
}

.spkawesome-ai-tone-dropdown:hover {
  border-color: var(--clr-primary);
  background: var(--clr-border-light);
}

.spkawesome-ai-tone-dropdown:focus {
  outline: none;
  border-color: var(--clr-primary);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

/* Input Group */
.spkawesome-ai-input-group {
  display: flex;
  gap: 8px;
  align-items: flex-end;
}

.spkawesome-ai-input {
  flex: 1;
  padding: 10px 12px;
  border: 1px solid var(--clr-border);
  background: var(--clr-surface);
  color: var(--clr-text);
  border-radius: var(--radius-md);
  font-size: 13px;
  font-family: var(--font-main);
  transition: all 0.2s var(--ease-smooth);
  resize: none;
  max-height: 100px;
  min-height: 38px;
}

.spkawesome-ai-input::placeholder {
  color: var(--clr-text-lighter);
}

.spkawesome-ai-input:focus {
  outline: none;
  border-color: var(--clr-primary);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
  background: var(--clr-bg);
}

/* Send Button */
.spkawesome-ai-send-btn {
  width: 38px;
  height: 38px;
  background: linear-gradient(135deg, var(--clr-primary) 0%, var(--clr-accent) 100%);
  color: white;
  border: none;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.2s var(--ease-smooth);
  flex-shrink: 0;
  padding: 0;
  box-shadow: var(--shadow-md);
}

.spkawesome-ai-send-btn:hover:not(:disabled) {
  transform: scale(1.08) translateY(-1px);
  box-shadow: var(--shadow-lg), var(--shadow-glow);
}

.spkawesome-ai-send-btn:active:not(:disabled) {
  transform: scale(0.95);
}

.spkawesome-ai-send-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.spkawesome-ai-send-btn svg {
  width: 18px;
  height: 18px;
  stroke-width: 2;
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 480px) {
  :root {
    --chat-width: calc(100vw - 16px);
    --chat-height: 550px;
  }

  .spkawesome-ai-chat-widget {
    bottom: 16px;
    right: 8px;
    left: 8px;
  }

  .spkawesome-ai-chat-window {
    right: 0;
    left: 0;
    bottom: 70px;
  }

  .spkawesome-ai-bubble {
    max-width: 90%;
  }
}

@media (max-width: 360px) {
  :root {
    --chat-width: 100vw;
    --chat-height: 520px;
  }

  .spkawesome-ai-chat-widget {
    bottom: 0;
    right: 0;
    left: 0;
  }

  .spkawesome-ai-chat-window {
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
  }
}

/* ============================================================
   ACCESSIBILITY
   ============================================================ */
@media (prefers-reduced-motion: reduce) {
  .spkawesome-ai-chat-window,
  .spkawesome-ai-toggle-btn,
  .spkawesome-ai-response-card,
  .spkawesome-ai-bubble {
    animation: none;
    transition: none;
  }
}

/* High contrast mode */
@media (prefers-contrast: more) {
  .spkawesome-ai-toggle-btn {
    border: 2px solid white;
  }

  .spkawesome-ai-chat-window {
    border: 2px solid var(--clr-text);
  }

  .spkawesome-ai-input,
  .spkawesome-ai-tone-dropdown {
    border: 2px solid var(--clr-text);
  }
}

/* Print styles */
@media print {
  .spkawesome-ai-chat-widget {
    display: none;
  }
}