/* ==========================================================================
   BENT APPLY V2 — ONE FULL-SCREEN WHATSAPP-LIKE CHAT
   Design Tokens: Cream #FAF8F3, Deep Green #173C17, Soft Green #E8F0DF,
   Gold #FFBF00, Dark #0E0E0E. Fonts: Plus Jakarta Sans + Inter
   ========================================================================== */

:root {
  --bg-page: #FAF8F3;
  --color-green-primary: #173C17;
  --color-green-soft: #E8F0DF;
  --color-green-muted: rgba(23, 60, 23, 0.72);
  --border-green: rgba(23, 60, 23, 0.12);
  --border-green-hover: rgba(23, 60, 23, 0.28);
  --color-gold: #FFBF00;
  --color-dark: #0E0E0E;

  --color-error: #B00020;
  --color-error-bg: #FDEDED;
  --color-error-border: #F5C2C7;

  --font-headline: 'Plus Jakarta Sans', system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-body: 'Inter', 'Plus Jakarta Sans', system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;

  --radius-xs: 6px;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 18px;
  --radius-pill: 999px;
  --transition-fast: 0.16s ease;
}

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

html, body {
  width: 100%;
  height: 100%;
  height: 100dvh;
  overflow: hidden;
  background-color: var(--bg-page);
  color: var(--color-green-primary);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.5;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

.chat-body {
  display: flex;
  flex-direction: column;
}

.chat-viewport {
  display: flex;
  flex-direction: column;
  width: 100%;
  height: 100%;
  height: 100dvh;
  max-width: 680px;
  margin: 0 auto;
  position: relative;
  background-color: var(--bg-page);
}

/* Accessible Utilities */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.hidden {
  display: none !important;
}

:focus {
  outline: none;
}

:focus-visible {
  outline: 3px solid var(--color-gold);
  outline-offset: 2px;
}

/* --------------------------------------------------------------------------
   Top Bar
   -------------------------------------------------------------------------- */
.chat-topbar {
  flex-shrink: 0;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: flex-start;
  padding: 0.5rem 1.15rem;
  background-color: var(--bg-page);
  border-bottom: 1px solid var(--border-green);
  z-index: 20;
}

.topbar-identity {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.topbar-logo {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  object-fit: contain;
  flex-shrink: 0;
}

.topbar-titles {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
}

.topbar-brand {
  font-family: var(--font-headline);
  font-size: 1.15rem;
  font-weight: 800;
  letter-spacing: -0.025em;
  color: var(--color-green-primary);
}

.topbar-subtitle {
  font-family: var(--font-body);
  font-size: 0.76rem;
  font-weight: 500;
  color: var(--color-green-muted);
}

/* --------------------------------------------------------------------------
   Message List & Bubbles
   -------------------------------------------------------------------------- */
.chat-messages {
  flex: 1;
  overflow-y: auto;
  overflow-x: hidden;
  padding: 1rem 1rem 0.75rem 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
  scroll-behavior: smooth;
  -webkit-overflow-scrolling: touch;
}

.chat-messages:focus {
  outline: none;
}

/* Message Rows */
.chat-row {
  display: flex;
  align-items: flex-end;
  gap: 0.5rem;
  max-width: 86%;
  animation: bubbleFadeIn 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes bubbleFadeIn {
  from {
    opacity: 0;
    transform: translateY(6px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.chat-row-bot {
  align-self: flex-start;
}

.chat-row-user {
  align-self: flex-end;
  flex-direction: row-reverse;
}

/* Bot Avatar (First in a run) */
.bot-avatar-wrap {
  width: 28px;
  height: 28px;
  flex-shrink: 0;
  margin-bottom: 2px;
}

.bot-avatar-img {
  width: 28px;
  height: 28px;
  border-radius: var(--radius-xs);
  object-fit: contain;
  display: block;
}

.bot-avatar-spacer {
  width: 28px;
  height: 28px;
  flex-shrink: 0;
  visibility: hidden;
}

/* Bubbles */
.msg-bubble {
  padding: 0.65rem 0.95rem;
  font-size: 0.95rem;
  line-height: 1.48;
  word-break: break-word;
  white-space: pre-wrap;
  position: relative;
}

/* WhatsApp Rounded Corners */
.msg-bubble-bot {
  background-color: var(--color-green-soft);
  color: var(--color-green-primary);
  border-radius: 16px 16px 16px 4px;
}

.chat-row-bot.is-consecutive .msg-bubble-bot {
  border-radius: 4px 16px 16px 4px;
}

.msg-bubble-user {
  background-color: var(--color-green-primary);
  color: #FAF8F3;
  border-radius: 16px 16px 4px 16px;
}

/* Typing Indicator */
.typing-bubble {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 0.8rem 1rem;
}

.typing-dot {
  width: 6px;
  height: 6px;
  background-color: var(--color-green-primary);
  border-radius: 50%;
  display: inline-block;
  animation: typingBounce 1.2s infinite ease-in-out;
}

.typing-dot:nth-child(1) { animation-delay: 0s; }
.typing-dot:nth-child(2) { animation-delay: 0.2s; }
.typing-dot:nth-child(3) { animation-delay: 0.4s; }

@keyframes typingBounce {
  0%, 80%, 100% {
    transform: translateY(0);
    opacity: 0.35;
  }
  40% {
    transform: translateY(-4px);
    opacity: 1;
  }
}

/* --------------------------------------------------------------------------
   Notice Bubbles & Errors
   -------------------------------------------------------------------------- */
.chat-notice-row {
  align-self: flex-start;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  max-width: 86%;
  animation: bubbleFadeIn 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

.chat-notice-bubble {
  padding: 0.65rem 0.95rem;
  font-size: 0.92rem;
  line-height: 1.45;
  border-radius: 12px;
  background-color: var(--color-green-soft);
  color: var(--color-green-primary);
  border: 1px solid var(--border-green);
}

.chat-notice-error {
  background-color: var(--color-error-bg);
  color: var(--color-error);
  border-color: var(--color-error-border);
}

.btn-restart {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-top: 0.5rem;
  padding: 0.45rem 1rem;
  font-family: var(--font-headline);
  font-size: 0.86rem;
  font-weight: 700;
  color: #FAF8F3;
  background-color: var(--color-green-primary);
  border: none;
  border-radius: var(--radius-pill);
  cursor: pointer;
  transition: opacity var(--transition-fast);
}

.btn-restart:hover {
  opacity: 0.88;
}

/* Inline Retry on User Bubble */
.inline-error-wrap {
  align-self: flex-end;
  display: flex;
  align-items: center;
  gap: 0.35rem;
  margin-top: -0.25rem;
  margin-right: 0.25rem;
  font-size: 0.82rem;
  color: var(--color-error);
  animation: bubbleFadeIn 0.15s ease-out;
}

.inline-retry-btn {
  background: none;
  border: none;
  font-family: var(--font-body);
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--color-error);
  text-decoration: underline;
  cursor: pointer;
  padding: 0 0.15rem;
}

.inline-retry-btn:hover {
  opacity: 0.8;
}

/* --------------------------------------------------------------------------
   Ending Screen & Back Link
   -------------------------------------------------------------------------- */
.chat-ending-actions {
  align-self: flex-start;
  margin-top: 0.5rem;
  margin-bottom: 1.5rem;
  padding-left: 36px;
  animation: bubbleFadeIn 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

.chat-back-link {
  display: inline-flex;
  align-items: center;
  font-family: var(--font-headline);
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--color-green-primary);
  text-decoration: underline;
  text-underline-offset: 4px;
  transition: opacity var(--transition-fast);
}

.chat-back-link:hover {
  opacity: 0.75;
}

/* --------------------------------------------------------------------------
   Composer Section (Pinned to bottom)
   -------------------------------------------------------------------------- */
.chat-composer-wrap {
  flex-shrink: 0;
  background-color: var(--bg-page);
  border-top: 1px solid var(--border-green);
  padding: 0.5rem 0.75rem calc(0.5rem + env(safe-area-inset-bottom, 0px)) 0.75rem;
  z-index: 20;
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
}

/* Pill Chips (WhatsApp Quick Replies) */
.chat-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  max-height: 135px;
  overflow-y: auto;
  padding: 0.15rem 0;
  -webkit-overflow-scrolling: touch;
}

.chat-chips:empty {
  display: none;
}

.chip-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.48rem 0.95rem;
  font-family: var(--font-headline);
  font-size: 0.875rem;
  font-weight: 600;
  line-height: 1.28;
  color: var(--color-green-primary);
  background-color: var(--color-green-soft);
  border: 1px solid var(--border-green);
  border-radius: var(--radius-pill);
  cursor: pointer;
  transition: background-color var(--transition-fast), border-color var(--transition-fast), transform var(--transition-fast);
  text-align: left;
}

.chip-btn:hover:not(:disabled) {
  background-color: rgba(23, 60, 23, 0.12);
  border-color: var(--color-green-primary);
  transform: translateY(-1px);
}

.chip-btn:focus-visible {
  outline: 2px solid var(--color-gold);
  outline-offset: 2px;
}

.chip-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}

/* Composer Form Row */
.chat-form {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  width: 100%;
}

.chat-input-container {
  flex: 1;
  min-width: 0;
  display: flex;
  align-items: center;
  background-color: #FFFFFF;
  border: 1.5px solid var(--border-green);
  border-radius: 24px;
  padding: 0.35rem 0.95rem;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.chat-input-container:focus-within {
  border-color: var(--color-green-primary);
  box-shadow: 0 0 0 2px rgba(23, 60, 23, 0.08);
}

.chat-input {
  flex: 1;
  width: 100%;
  min-height: 24px;
  max-height: 110px;
  font-family: var(--font-body);
  font-size: 0.95rem;
  line-height: 1.45;
  color: var(--color-green-primary);
  background: transparent;
  border: 0;
  outline: none;
  resize: none;
  padding: 0.2rem 0;
}

.chat-input::placeholder {
  color: var(--color-green-muted);
  opacity: 0.65;
}

.chat-input:disabled {
  color: rgba(23, 60, 23, 0.45);
  cursor: not-allowed;
}

/* Round Send Button Outside Message Bar */
.chat-send-btn {
  flex: none;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background-color: var(--color-green-primary);
  color: #FAF8F3;
  border: none;
  cursor: pointer;
  transition: background-color var(--transition-fast), transform var(--transition-fast), opacity var(--transition-fast);
}

.chat-send-btn svg {
  transform: translateX(1px);
}

.chat-send-btn:hover:not(:disabled) {
  background-color: #0E290E;
  transform: scale(1.04);
}

.chat-send-btn:disabled {
  background-color: var(--color-green-soft);
  color: var(--color-green-muted);
  cursor: default;
  opacity: 0.65;
}

.chat-send-btn:focus-visible {
  outline: 2px solid var(--color-gold);
  outline-offset: 2px;
}

/* --------------------------------------------------------------------------
   Accessibility & Motion
   -------------------------------------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}