src/app/chat/chat.component.css

/* Layout */
.chat-container {
  display: flex;
  flex-direction: column;
  height: 100vh;
  width: 100%;
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

.chat-box {
  display: flex;
  flex-direction: column;
  overflow-y: auto;
  height: 375px;
  padding: 2vw;
  background-color: rgba(35, 34, 32, 0.43);
  scroll-behavior: smooth;
  flex-grow: 1;
  padding-bottom: 375px;
  scroll-padding-bottom: 375px;
}

.input-container {
  display: flex;
  flex-direction: column-reverse;
  width: 100%;
  position: sticky;
  bottom: 0;
  z-index: 10;
}

/* Input */
.input-box {
  display: flex;
  gap: 10px;
  padding: 8px;
  background: #009688;
  box-shadow: 0 -2px 4px rgba(0, 0, 0, 0.1);
  flex-shrink: 0;
  width: 100%;
  height: auto;
  min-height: 40px;
  font-weight: bold;
}

  .input-box textarea {
    flex: 1;
    height: auto;
    max-height: 80px;
    overflow-y: auto;
    resize: none;
    padding: 8px;
    font-size: 1vw;
    line-height: 1.2;
    border: 1px solid rgb(93, 145, 195);
    border-radius: 8px;
    background: #fff;
    color: black;
    outline: none;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
    width: 100%;
    box-sizing: border-box;
  }

    .input-box textarea:focus {
      border-color: rgb(135, 185, 235);
      box-shadow: 0 0 5px rgba(93, 145, 195, 0.6);
    }

    .input-box textarea::placeholder {
      color: rgba(255, 255, 255, 0.5);
    }

  .input-box button {
    width: 55px;
    height: 55px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: white;
    border: none;
    border-radius: 8px;
    cursor: pointer;
  }

    .input-box button:hover {
      transform: scale(1.05);
      box-shadow: 0px 4px 10px rgba(14, 165, 233, 0.4);
    }

.button-icon {
  width: 34px;
  height: 34px;
  object-fit: contain;
}

/* Quick suggestions */
.hardcoded-questions-container {
  display: flex;
  justify-content: flex-start;
  gap: 15px;
  padding: 10px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 8px;
  margin-bottom: 5px;
  flex-wrap: wrap;
  position: absolute;
  bottom: 60px;
  left: 10px;
  width: auto;
}

.hardcoded-question {
  padding: 10px 15px;
  background: rgba(200, 200, 200, 0.3);
  border-radius: 5px;
  font-size: 14px;
  font-weight: bold;
  cursor: pointer;
  transition: background 0.3s ease, transform 0.2s ease;
  white-space: nowrap;
  border: 1px solid rgba(0, 0, 0, 0.2);
}

  .hardcoded-question:hover {
    background: rgba(180, 180, 180, 0.5);
    transform: scale(1.05);
  }

@media (max-width: 600px) {
  .hardcoded-questions-container {
    width: 90%;
    bottom: 80px;
    left: 10px;
  }

  .hardcoded-question {
    font-size: 12px;
    padding: 8px 12px;
  }
}

/* Messages */
.message-wrapper {
  display: flex;
  align-items: flex-start;
  gap: 1vw;
  margin-bottom: 1vw;
}

  .message-wrapper.user {
    flex-direction: row-reverse;
    text-align: right;
  }

  .message-wrapper.ai {
    flex-direction: row;
    text-align: left;
  }

.profile-pic {
  width: 4vw;
  height: 4vw;
  border-radius: 50%;
  overflow: hidden;
  background-color: #ddd;
}

  .profile-pic img {
    width: 100%;
    height: 100%;
    object-fit: cover;
  }

.ai .message {
  align-self: flex-start;
  background: #56cdc273;
  color: white;
}

.user .message {
  align-self: flex-end;
  background: #56cdc273;
  color: white;
}

.message-timestamp {
  font-size: 0.8vw;
  color: rgba(255, 255, 255, 0.8);
  margin-top: 0.5vw;
  display: inline-block;
  text-align: right;
}

.message {
  max-width: 50vw;
  padding: 1vw 2vw;
  border-radius: 2vw;
  font-size: 1vw;
  font-weight: 600;
  line-height: 1.5;
  box-shadow: 0 0.3vw 0.8vw rgba(0, 0, 0, 0.1);
  background: #2b6296;
  color: white;
}

.structured-response {
  background: #2b6296;
  color: white;
  padding: 1vw;
  border-radius: 1vw;
  margin-bottom: 0.3vw;
  box-shadow: 0 0.3vw 0.8vw rgba(0, 0, 0, 0.1);
  line-height: 1.4;
  max-width: 48vw;
  word-break: break-word;
}

  .structured-response b {
    display: inline-block;
    margin-top: 0.3vw;
  }

  .structured-response br {
    display: block;
    content: "";
    margin: 0.2vw 0;
  }

  .structured-response ul, .structured-response ol {
    padding-left: 1.2vw;
    margin-bottom: 0;
  }

    .structured-response ul li, .structured-response ol li {
      margin-bottom: 0.2vw;
      line-height: 1.4;
    }

.message, .structured-response {
  scroll-margin-bottom: var(--input-gap, 120px);
}

/* Scroll button */
.scroll-to-bottom-btn {
  position: fixed;
  right: 16px;
  bottom: calc(var(--input-gap, 120px) + 16px);
  width: 51px;
  height: 51px;
  border-radius: 50%;
  border: none;
  background: #56cdc2;
  color: #fff;
  font-size: 31px;
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.25);
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.2s ease, background 0.2s ease;
  z-index: 20;
}

  .scroll-to-bottom-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 22px rgba(0, 0, 0, 0.3);
    background: #56cdc2;
  }

/* Toggle buttons */
.toggle-buttons-container {
  display: flex;
  gap: 10px;
  align-items: center;
  margin-right: 15px;
}

  .toggle-buttons-container.modern-toggle {
    display: flex;
    gap: 18px;
    align-items: center;
    margin-right: 15px;
  }

.toggle-btn {
  padding: 8px 12px;
  border: 2px solid #5d91c3;
  background: transparent;
  color: white;
  border-radius: 20px;
  cursor: pointer;
  font-size: 0.9vw;
  font-weight: bold;
  transition: all 0.3s ease;
  min-width: 49px;
  white-space: nowrap;
}

  .toggle-btn:hover {
    background: rgba(93, 145, 195, 0.2);
    transform: scale(1.05);
  }

  .toggle-btn.active {
    background: #5d91c3;
    color: white;
    box-shadow: 0 0 10px rgba(93, 145, 195, 0.5);
  }

  .toggle-btn.modern {
    background: #f5f7fa;
    border: none;
    border-radius: 24px;
    box-shadow: 0 2px 8px rgba(93,145,195,0.08);
    padding: 8px 16px;
    display: flex;
    align-items: center;
    transition: background 0.2s, box-shadow 0.2s, transform 0.2s;
    cursor: pointer;
    min-width: 48px;
    height: 44px;
  }

    .toggle-btn.modern .toggle-icon {
      width: 24px;
      height: 24px;
      margin: 0 auto;
      display: block;
    }

    .toggle-btn.modern.active {
      background: #e3fcec;
      box-shadow: 0 4px 16px rgba(93,145,195,0.18);
      transform: scale(1.08);
    }

    .toggle-btn.modern.muted {
      background: #ffeaea;
    }

    .toggle-btn.modern:hover {
      background: #eaf1fb;
      box-shadow: 0 6px 18px rgba(93,145,195,0.18);
      transform: scale(1.05);
    }

    .toggle-btn.modern:disabled {
      opacity: 0.5;
      cursor: not-allowed;
      box-shadow: none;
    }

@media (max-width: 1200px) {
  .toggle-btn {
    font-size: 0.8vw;
    min-width: 70px;
    padding: 6px 10px;
  }
}

@media (max-width: 768px) {
  .toggle-buttons-container {
    gap: 5px;
    margin-right: 10px;
  }

  .toggle-btn {
    font-size: 0.7vw;
    min-width: 60px;
    padding: 4px 8px;
  }
}

.icon-btn {
  background: none;
  border: none;
  padding: 4px;
  cursor: pointer;
  border-radius: 4px;
  transition: background 0.2s;
  margin-left: 0.5vw;
}

  .icon-btn:hover {
    background: rgba(93, 145, 195, 0.15);
  }

.meta-icon {
  width: 20px;
  height: 20px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  vertical-align: middle;
}

.copy-tick {
  color: #fff;
  font-size: 20px;
  font-weight: bold;
  width: 20px;
  height: 20px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  vertical-align: middle;
  transition: color 0.2s;
}

/* Tutor video (also used for inline player) */
.tutor-video {
  position: fixed;
  right: 24px;
  bottom: 80px;
  width: 380px;
  height: 380px;
  border-radius: 12px;
  box-shadow: 0 4px 16px rgba(0,0,0,0.25);
  z-index: 2000;
  background: #000;
}

@media (max-width: 600px) {
  .tutor-video {
    width: 90vw;
    height: 28vw;
    right: 5vw;
    bottom: 5vw;
  }
}

/* Typing indicator */
.typing-indicator {
  display: flex;
  align-items: center;
  gap: 8px;
  color: #ffffff;
  font-size: 1.2vw;
  margin-left: 4vw;
  margin-top: 1vw;
  background: rgba(255, 255, 255, 0.2);
  padding: 0.8vw 1.5vw;
  border-radius: 2vw;
  width: fit-content;
  animation: fadeIn 0.3s ease-in-out;
}

  .typing-indicator span {
    width: 10px;
    height: 10px;
    background-color: #ffffff;
    border-radius: 50%;
    display: inline-block;
    animation: typingDots 1.5s infinite ease-in-out;
  }

    .typing-indicator span:nth-child(1) {
      animation-delay: 0s;
    }

    .typing-indicator span:nth-child(2) {
      animation-delay: 0.2s;
    }

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

@keyframes typingDots {
  0%, 100% {
    transform: scale(0.8);
    opacity: 0.3;
  }

  50% {
    transform: scale(1);
    opacity: 1;
  }
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(5px);
  }

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

/* Mic popup */
.mic-popup {
  position: fixed;
  left: 50%;
  top: 18%;
  transform: translateX(-50%);
  width: 420px;
  background: #fff;
  border-radius: 10px;
  box-shadow: 0 10px 30px rgba(0,0,0,0.15);
  z-index: 1200;
  overflow: hidden;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial;
}

.mic-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 14px;
  border-bottom: 1px solid #eee;
}

  .mic-header .close {
    background: transparent;
    border: none;
    font-size: 16px;
    cursor: pointer;
  }

.mic-body {
  padding: 12px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.waveform {
  width: 100%;
  height: 90px;
  background: #fafafa;
  border-radius: 6px;
  display: block;
}

.transcript-area {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.status {
  display: flex;
  align-items: center;
  gap: 8px;
  color: #444;
  font-size: 13px;
}

  .status .dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: #bbb;
    display: inline-block;
  }

    .status .dot.recording {
      background: #d23;
      box-shadow: 0 0 8px rgba(210,35,35,0.35);
    }

.popup-transcript {
  min-height: 52px;
  background: #f7f8fa;
  padding: 8px;
  border-radius: 6px;
  white-space: pre-wrap;
  font-size: 14px;
  color: #222;
}

  .popup-transcript .hint {
    color: #666;
    font-size: 13px;
  }

  .popup-transcript pre {
    margin: 0;
    font-family: inherit;
    white-space: pre-wrap;
  }

.mic-actions {
  display: flex;
  gap: 8px;
  justify-content: flex-end;
  margin-top: 6px;
}

  .mic-actions button {
    padding: 6px 10px;
    border-radius: 6px;
    border: 1px solid #ddd;
    background: #fff;
    cursor: pointer;
  }

    .mic-actions button[disabled] {
      opacity: 0.5;
      cursor: not-allowed;
    }

.error {
  color: #b00020;
  font-size: 13px;
}

/* User guide */
.user-guide-modal {
  position: fixed;
  top: 52%;
  left: 50%;
  transform: translate(-50%, -50%);
  height: 38vw;
  width: 50vw;
  background: linear-gradient(135deg, #fff 80%, #e3fcec 100%);
  color: #222;
  box-shadow: 0 12px 40px rgba(93, 145, 195, .22);
  border-radius: 18px;
  padding: 1vw;
  z-index: 2001;
  overflow: visible;
  border: 10px solid var(--main-accent-color);
  box-sizing: border-box;
}

.user-guide-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.35);
  z-index: 2000;
}

.user-guide-close-icon {
  top: -22px;
  right: -22px;
}

.user-guide-modal ol {
  overflow-y: auto;
  max-height: 34.6vw;
}

.user-guide-modal li {
  line-height: 1.7;
  font-size: 1.1vw;
  background: rgba(93, 145, 195, .07);
  padding: .5vw .5vw;
  box-shadow: 0 2px 8px rgba(93, 145, 195, .06);
}

  .user-guide-modal li b {
    color: #2b6296;
    font-size: 1.15vw;
  }

@keyframes blink {
  0%, 50% {
    opacity: 1;
  }

  51%, 100% {
    opacity: 0;
  }
}