/* ==========================================================================
   Autism Bridge — Sensory-Friendly & Low-Arousal Stylesheet
   ========================================================================== */

/* Low-Arousal Color Palette Variables */
:root {
  --bg-cream: #FAF7F2;          /* Soft off-white canvas to reduce glare */
  --text-charcoal: #2D3134;     /* Deep charcoal for comfortable contrast */
  --text-muted: #5A5E61;        /* Muted tone for subtle descriptions */
  --sage-green: #7D9D86;        /* Primary grounding accent */
  --sage-hover: #688570;        /* Darker sage for active states */
  --soft-blue: #8FA7B8;         /* Secondary calming accent */
  --bubble-bot: #F0EDE6;        /* Soft off-white for assistant messages */
  --bubble-user: #E3EAE5;       /* Light sage tint for user responses */
  --emergency-bg: #F4E8E8;      /* Gentle pastel red tint for crisis button */
  --emergency-text: #9E3B3B;    /* Muted red text */
  --modal-overlay: rgba(45, 49, 52, 0.45); /* Soft desaturated dimming */
}

/* Reset & Global Rules */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html, body {
  width: 100%;
  height: 100%;
  background-color: var(--bg-cream);
  color: var(--text-charcoal);
  font-family: 'Verdana', 'Arial', sans-serif; /* High legibility sans-serif */
  line-height: 1.6; /* Prevents visual line blurring */
  overflow: hidden; /* Locks full-screen conversational frame */
  -webkit-font-smoothing: antialiased;
}

/* --------------------------------------------------------------------------
   Header Navigation Bar
   -------------------------------------------------------------------------- */
.app-header {
  height: 65px;
  padding: 0 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  background-color: var(--bg-cream);
  border-bottom: 1px solid rgba(0, 0, 0, 0.06);
  z-index: 10;
}

.brand-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-charcoal);
  display: flex;
  align-items: center;
  gap: 8px;
}

/* 3-Language Selector Pills */
.lang-picker {
  background-color: #EFEBE4;
  padding: 4px;
  border-radius: 20px;
  display: flex;
  gap: 4px;
}

.lang-btn {
  background: transparent;
  border: none;
  padding: 5px 12px;
  border-radius: 16px;
  font-size: 0.82rem;
  font-family: inherit;
  color: var(--text-charcoal);
  cursor: pointer;
  transition: all 0.2s ease;
}

.lang-btn.active {
  background-color: var(--sage-green);
  color: #FFFFFF;
  font-weight: bold;
}

/* Header Buttons */
.header-actions {
  display: flex;
  gap: 10px;
  align-items: center;
}

.support-connect-trigger {
  background-color: var(--bubble-user);
  color: var(--text-charcoal);
  border: 1px solid var(--sage-green);
  padding: 8px 16px;
  border-radius: 20px;
  font-size: 0.85rem;
  font-family: inherit;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
}

.support-connect-trigger:hover {
  background-color: var(--sage-green);
  color: #FFFFFF;
}

.emergency-trigger {
  background-color: var(--emergency-bg);
  color: var(--emergency-text);
  border: 1px solid var(--emergency-text);
  padding: 8px 16px;
  border-radius: 20px;
  font-size: 0.85rem;
  font-family: inherit;
  font-weight: bold;
  cursor: pointer;
  transition: all 0.2s ease;
}

.emergency-trigger:hover {
  background-color: #EAC8C8;
}

/* --------------------------------------------------------------------------
   Full-Page Interactive Chat Container
   -------------------------------------------------------------------------- */
.chat-wrapper {
  max-width: 800px;
  height: calc(100vh - 65px);
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  padding: 20px 15px;
}

/* Scrollable Conversation Area */
.chat-history-scroll {
  flex: 1;
  overflow-y: auto;
  padding-right: 8px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

/* Speech Bubbles */
.bubble {
  max-width: 82%;
  padding: 16px 20px;
  border-radius: 18px;
  text-align: left; /* Strict left-alignment to eliminate tracking friction */
  font-size: 0.95rem;
  animation: fadeIn 0.3s ease-in-out;
}

.bubble.bot {
  background-color: var(--bubble-bot);
  color: var(--text-charcoal);
  align-self: flex-start;
  border-top-left-radius: 4px;
  box-shadow: 0 2px 6px rgba(0,0,0,0.02);
}

.bubble.user {
  background-color: var(--bubble-user);
  color: var(--text-charcoal);
  align-self: flex-end;
  border-top-right-radius: 4px;
  font-weight: 500;
}

.bubble p {
  margin-bottom: 10px;
}

.bubble p:last-child {
  margin-bottom: 0;
}

/* --------------------------------------------------------------------------
   Interaction Bar (Buttons & Input)
   -------------------------------------------------------------------------- */
.interaction-bar {
  padding-top: 15px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.button-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.suggested-btn {
  background-color: var(--sage-green);
  color: #FFFFFF;
  border: none;
  padding: 10px 18px;
  border-radius: 22px;
  font-size: 0.88rem;
  font-family: inherit;
  cursor: pointer;
  transition: background-color 0.2s ease, transform 0.1s ease;
}

.suggested-btn:hover {
  background-color: var(--sage-hover);
}

.suggested-btn:active {
  transform: scale(0.98);
}

.input-container {
  display: flex;
  gap: 10px;
}

.input-container input {
  flex: 1;
  padding: 12px 18px;
  border-radius: 25px;
  border: 1px solid #DCD6CD;
  background-color: #FFFFFF;
  font-size: 0.92rem;
  font-family: inherit;
  color: var(--text-charcoal);
  outline: none;
}

.input-container input:focus {
  border-color: var(--sage-green);
}

.send-action {
  background-color: var(--soft-blue);
  color: #FFFFFF;
  border: none;
  padding: 0 22px;
  border-radius: 25px;
  cursor: pointer;
  font-weight: bold;
  font-family: inherit;
  transition: background-color 0.2s ease;
}

.send-action:hover {
  background-color: #7A95A8;
}

/* --------------------------------------------------------------------------
   Booking Modal Overlay
   -------------------------------------------------------------------------- */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background-color: var(--modal-overlay);
  backdrop-filter: blur(3px);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 1000;
  animation: fadeIn 0.2s ease;
}

.modal-card {
  background-color: var(--bg-cream);
  width: 90%;
  max-width: 480px;
  padding: 28px;
  border-radius: 18px;
  box-shadow: 0 12px 30px rgba(0,0,0,0.1);
  position: relative;
}

.close-modal {
  position: absolute;
  top: 16px;
  right: 18px;
  background: none;
  border: none;
  font-size: 1.2rem;
  color: var(--text-charcoal);
  cursor: pointer;
}

.modal-desc {
  font-size: 0.88rem;
  color: var(--text-muted);
  margin-top: 6px;
  margin-bottom: 20px;
}

.form-group {
  margin-bottom: 14px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  text-align: left;
}

.form-group label {
  font-size: 0.84rem;
  font-weight: bold;
  color: var(--text-charcoal);
}

.form-group input, 
.form-group select, 
.form-group textarea {
  padding: 10px 12px;
  border-radius: 8px;
  border: 1px solid #DCD6CD;
  font-family: inherit;
  font-size: 0.9rem;
  background-color: #FFFFFF;
  color: var(--text-charcoal);
  outline: none;
}

.form-group input:focus, 
.form-group select:focus, 
.form-group textarea:focus {
  border-color: var(--sage-green);
}

.submit-support-btn {
  width: 100%;
  background-color: var(--sage-green);
  color: #FFFFFF;
  border: none;
  padding: 12px;
  border-radius: 25px;
  font-size: 0.92rem;
  font-weight: bold;
  font-family: inherit;
  cursor: pointer;
  margin-top: 10px;
  transition: background-color 0.2s ease;
}

.submit-support-btn:hover {
  background-color: var(--sage-hover);
}

/* Keyframe Animations */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

/* --------------------------------------------------------------------------
   Mobile Responsiveness Rules
   -------------------------------------------------------------------------- */
@media (max-width: 600px) {
  .app-header {
    padding: 0 12px;
  }

  .brand-title strong {
    font-size: 0.95rem;
  }

  .support-connect-trigger, .emergency-trigger {
    padding: 6px 10px;
    font-size: 0.78rem;
  }

  .bubble {
    max-width: 90%;
    font-size: 0.9rem;
  }

  .suggested-btn {
    width: 100%;
    text-align: left;
  }
}