/* ==========================================================================
   Food & Nutrition Page
   --------------------------------------------------------------------------
   Page-specific styles for pages/food.html.
   Uses the global Simple Web Tools design tokens from /css/style.css.
   ========================================================================== */

.page-head {
  max-width: 760px;
}

.tools-grid .tool {
  background: var(--glass-bg);
  border-color: var(--glass-border);
  -webkit-backdrop-filter: blur(var(--glass-blur)) saturate(140%);
  backdrop-filter: blur(var(--glass-blur)) saturate(140%);
  box-shadow: var(--shadow-md);
  overflow: hidden;
}

.tools-grid .tool:hover {
  box-shadow: var(--shadow-lg);
}

.tool-header {
  padding-bottom: var(--space-2);
  border-bottom: 1px solid var(--border);
}

.tool-header h2 {
  font-size: clamp(1.15rem, 1rem + 0.6vw, 1.45rem);
}

.tool-icon {
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  flex: 0 0 auto;
  border-radius: var(--radius-md);
  background: var(--brand-100);
  box-shadow: var(--shadow-sm);
}

[data-theme='dark'] .tool-icon {
  background: rgba(139, 92, 246, 0.18);
}

#proteinForm .input,
.chat-textarea {
  background: rgba(255, 255, 255, 0.72);
}

[data-theme='dark'] #proteinForm .input,
[data-theme='dark'] .chat-textarea {
  background: rgba(19, 26, 46, 0.72);
}

#proteinForm .input:focus,
.chat-textarea:focus {
  outline: none;
  border-color: var(--brand-500);
  box-shadow: 0 0 0 3px var(--ring);
}

#proteinResult {
  animation: foodRise var(--dur) var(--ease) both;
}

#proteinResult:not(.is-empty) {
  background:
    linear-gradient(135deg, rgba(124, 58, 237, 0.08), rgba(6, 182, 212, 0.08)),
    var(--glass-bg);
}

#proteinResult .result-val.good,
#proteinResult strong {
  color: var(--success);
}

.chat {
  display: flex;
  min-height: 560px;
  flex-direction: column;
  gap: var(--space-4);
}

.chat-messages {
  height: min(58vh, 520px);
  min-height: 340px;
  padding: var(--space-4);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  overflow-y: auto;
  overscroll-behavior: contain;
  scroll-behavior: smooth;
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  background:
    radial-gradient(circle at top left, rgba(124, 58, 237, 0.09), transparent 34%),
    radial-gradient(circle at bottom right, rgba(6, 182, 212, 0.08), transparent 34%),
    rgba(255, 255, 255, 0.38);
  -webkit-backdrop-filter: blur(calc(var(--glass-blur) - 6px));
  backdrop-filter: blur(calc(var(--glass-blur) - 6px));
}

[data-theme='dark'] .chat-messages {
  background:
    radial-gradient(circle at top left, rgba(139, 92, 246, 0.14), transparent 34%),
    radial-gradient(circle at bottom right, rgba(6, 182, 212, 0.12), transparent 34%),
    rgba(11, 16, 32, 0.46);
}

.chat-messages::-webkit-scrollbar {
  width: 10px;
}

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

.chat-messages::-webkit-scrollbar-thumb {
  background: rgba(100, 116, 139, 0.32);
  border: 3px solid transparent;
  border-radius: var(--radius-pill);
  background-clip: content-box;
}

.chat-message,
.message {
  display: flex;
  width: 100%;
  animation: chatMessageIn var(--dur) var(--ease) both;
}

.chat-message.user,
.chat-message--user,
.message.user,
.message--user {
  justify-content: flex-end;
}

.chat-message.assistant,
.chat-message.bot,
.chat-message--assistant,
.chat-message--bot,
.message.assistant,
.message.bot,
.message--assistant,
.message--bot {
  justify-content: flex-start;
}

.chat-bubble,
.message-bubble,
.bubble {
  max-width: min(74%, 680px);
  padding: 0.82rem 1rem;
  border: 1px solid var(--border);
  border-radius: 18px;
  background: var(--bg-elev);
  color: var(--text);
  box-shadow: var(--shadow-sm);
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}

.chat-message.user .chat-bubble,
.chat-message--user .chat-bubble,
.message.user .message-bubble,
.message--user .message-bubble,
.user .bubble {
  border-color: transparent;
  border-bottom-right-radius: var(--radius-sm);
  background: var(--gradient);
  color: #fff;
}

.chat-message.assistant .chat-bubble,
.chat-message.bot .chat-bubble,
.chat-message--assistant .chat-bubble,
.chat-message--bot .chat-bubble,
.message.assistant .message-bubble,
.message.bot .message-bubble,
.message--assistant .message-bubble,
.message--bot .message-bubble,
.assistant .bubble,
.bot .bubble {
  border-bottom-left-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.78);
}

[data-theme='dark'] .chat-message.assistant .chat-bubble,
[data-theme='dark'] .chat-message.bot .chat-bubble,
[data-theme='dark'] .chat-message--assistant .chat-bubble,
[data-theme='dark'] .chat-message--bot .chat-bubble,
[data-theme='dark'] .message.assistant .message-bubble,
[data-theme='dark'] .message.bot .message-bubble,
[data-theme='dark'] .message--assistant .message-bubble,
[data-theme='dark'] .message--bot .message-bubble,
[data-theme='dark'] .assistant .bubble,
[data-theme='dark'] .bot .bubble {
  background: rgba(19, 26, 46, 0.84);
}

.chat-meta,
.message-meta {
  margin-top: var(--space-1);
  font-size: 0.75rem;
  color: var(--text-muted);
}

.chat-suggestions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.chip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 38px;
  padding: 0.45rem 0.85rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-pill);
  background: rgba(255, 255, 255, 0.62);
  color: var(--text-soft);
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  box-shadow: var(--shadow-sm);
  transition:
    transform var(--dur-fast) var(--ease),
    box-shadow var(--dur) var(--ease),
    border-color var(--dur) var(--ease),
    background var(--dur) var(--ease),
    color var(--dur) var(--ease);
}

.chip:hover {
  transform: translateY(-1px);
  border-color: rgba(124, 58, 237, 0.35);
  background: var(--brand-100);
  color: var(--brand-700);
  box-shadow: var(--shadow-md);
}

.chip:active {
  transform: translateY(0);
}

[data-theme='dark'] .chip {
  background: rgba(19, 26, 46, 0.72);
}

[data-theme='dark'] .chip:hover {
  background: rgba(139, 92, 246, 0.18);
  color: var(--brand-300);
}

.chat-input {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: var(--space-3);
  align-items: end;
  padding: var(--space-3);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  background: var(--glass-bg);
  -webkit-backdrop-filter: blur(calc(var(--glass-blur) - 8px));
  backdrop-filter: blur(calc(var(--glass-blur) - 8px));
  box-shadow: var(--shadow-sm);
}

.chat-textarea {
  width: 100%;
  min-height: 46px;
  max-height: 160px;
  padding: 0.75rem 0.95rem;
  resize: none;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  line-height: 1.45;
  box-shadow: none;
}

.chat-send {
  min-height: 46px;
  padding-inline: 1.15rem;
}

.chat-disclaimer {
  margin-top: calc(-1 * var(--space-2));
  font-size: 0.82rem;
  line-height: 1.45;
}

.typing-indicator,
.chat-typing {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  width: fit-content;
  padding: 0.82rem 1rem;
  border: 1px solid var(--border);
  border-radius: 18px;
  border-bottom-left-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.78);
  box-shadow: var(--shadow-sm);
}

[data-theme='dark'] .typing-indicator,
[data-theme='dark'] .chat-typing {
  background: rgba(19, 26, 46, 0.84);
}

.typing-indicator span,
.typing-indicator .dot,
.chat-typing span,
.chat-typing .dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--text-muted);
  animation: typingPulse 1.1s ease-in-out infinite;
}

.typing-indicator span:nth-child(2),
.typing-indicator .dot:nth-child(2),
.chat-typing span:nth-child(2),
.chat-typing .dot:nth-child(2) {
  animation-delay: 140ms;
}

.typing-indicator span:nth-child(3),
.typing-indicator .dot:nth-child(3),
.chat-typing span:nth-child(3),
.chat-typing .dot:nth-child(3) {
  animation-delay: 280ms;
}

@keyframes foodRise {
  from {
    opacity: 0;
    transform: translateY(10px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

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

  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

@keyframes typingPulse {
  0%,
  80%,
  100% {
    opacity: 0.35;
    transform: translateY(0);
  }

  40% {
    opacity: 1;
    transform: translateY(-4px);
  }
}

@media (min-width: 901px) {
  .tools-grid .tool[aria-labelledby='foodchat-title'] {
    grid-column: span 2;
  }
}

@media (max-width: 900px) {
  .tools-grid .tool[aria-labelledby='foodchat-title'] {
    grid-column: 1 / -1 !important;
  }

  .chat {
    min-height: 520px;
  }

  .chat-messages {
    height: 440px;
    min-height: 320px;
  }
}

@media (max-width: 720px) {
  .tools-grid {
    grid-template-columns: 1fr;
  }

  .tools-grid .tool[aria-labelledby='foodchat-title'] {
    grid-column: auto !important;
  }

  .chat {
    min-height: auto;
  }

  .chat-messages {
    height: 54vh;
    min-height: 300px;
    padding: var(--space-3);
    border-radius: var(--radius-md);
  }

  .chat-bubble,
  .message-bubble,
  .bubble {
    max-width: 88%;
  }

  .chat-input {
    grid-template-columns: 1fr;
  }

  .chat-send {
    width: 100%;
  }
}

@media (max-width: 420px) {
  .tool {
    padding: var(--space-4);
  }

  .tool-icon {
    width: 38px;
    height: 38px;
  }

  .chat-messages {
    min-height: 280px;
  }

  .chat-bubble,
  .message-bubble,
  .bubble {
    max-width: 94%;
    padding: 0.72rem 0.85rem;
  }

  .chip {
    flex: 1 1 auto;
  }
}

@media (prefers-reduced-motion: reduce) {
  .chat-message,
  .message,
  #proteinResult,
  .typing-indicator span,
  .typing-indicator .dot,
  .chat-typing span,
  .chat-typing .dot {
    animation: none !important;
  }
}

@media (forced-colors: active) {
  .chat-messages,
  .chat-input,
  .chat-bubble,
  .message-bubble,
  .bubble,
  .chip,
  .typing-indicator,
  .chat-typing {
    border: 1px solid CanvasText;
  }
}