/*
Gagan AI — Chatbot Widget Styles
Author: Gagan Soti
Built to reuse the existing design system in main-asset/style.css
(colors, border-radius, shadows, font, dark mode via body.dark-mode)
No external theme system — follows the site's own .dark-mode class.
*/

/* ---------- SCOPED DESIGN TOKENS ---------- */
.gai-root {
  --gai-primary: #2563eb;
  --gai-primary-dark: #1d4ed8;
  --gai-accent: #7c3aed;
  --gai-bg-body: #f9fafc;
  --gai-bg-card: #ffffff;
  --gai-border: #edf2f7;
  --gai-border-strong: #e2e8f0;
  --gai-text: #0b1a33;
  --gai-text-heading: #1e293b;
  --gai-text-muted: #475569;
  --gai-badge-bg: #dbeafe;
  --gai-badge-text: #1e4ed8;
  --gai-chip-bg: #eef2f6;
  --gai-shadow-card: 0 8px 28px rgba(0, 0, 0, 0.06);
  --gai-shadow-float: 0 20px 44px -12px rgba(37, 99, 235, 0.28);
  --gai-shadow-btn: 0 8px 24px rgba(37, 99, 235, 0.25);
  --gai-shadow-btn-hover: 0 14px 30px rgba(37, 99, 235, 0.35);
  --gai-radius-panel: 28px;
  --gai-radius-card: 20px;
  --gai-radius-pill: 60px;
  font-family: "Inter", sans-serif;
}

body.dark-mode .gai-root {
  --gai-bg-body: #0f172a;
  --gai-bg-card: #1e293b;
  --gai-border: #334155;
  --gai-border-strong: #334155;
  --gai-text: #e2e8f0;
  --gai-text-heading: #e2e8f0;
  --gai-text-muted: #94a3b8;
  --gai-badge-bg: #1e293b;
  --gai-badge-text: #60a5fa;
  --gai-chip-bg: #1e293b;
  --gai-shadow-card: 0 8px 28px rgba(0, 0, 0, 0.25);
}

.gai-root * {
  box-sizing: border-box;
}

/* ---------- FLOATING LAUNCH BUTTON ---------- */
.gai-fab {
  position: fixed;
  bottom: 30px;
  right: 110px;
  z-index: 900;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: linear-gradient(135deg, var(--gai-primary), var(--gai-accent));
  color: #fff;
  border: none;
  padding: 14px 26px 14px 20px;
  border-radius: var(--gai-radius-pill);
  font-family: "Inter", sans-serif;
  font-weight: 600;
  font-size: 0.98rem;
  cursor: pointer;
  box-shadow: var(--gai-shadow-btn);
  transition: transform 0.25s ease, box-shadow 0.25s ease, opacity 0.25s ease;
}

.gai-fab:hover {
  transform: translateY(-4px);
  box-shadow: var(--gai-shadow-btn-hover);
}

.gai-fab i {
  font-size: 1.05rem;
}

.gai-fab .gai-fab-label {
  white-space: nowrap;
}

.gai-fab.gai-hidden {
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px) scale(0.9);
  pointer-events: none;
}

/* ---------- CHAT PANEL ---------- */
.gai-panel {
  position: fixed;
  bottom: 100px;
  right: 30px;
  z-index: 950;
  width: 400px;
  max-width: calc(100vw - 40px);
  height: min(640px, 78vh);
  background: var(--gai-bg-card);
  border: 1px solid var(--gai-border);
  border-radius: var(--gai-radius-panel);
  box-shadow: var(--gai-shadow-float), var(--gai-shadow-card);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  font-family: "Inter", sans-serif;
  opacity: 0;
  visibility: hidden;
  transform: translateY(24px) scale(0.97);
  transform-origin: bottom right;
  transition: opacity 0.28s ease, transform 0.28s ease, visibility 0.28s;
}

.gai-panel.gai-open {
  opacity: 1;
  visibility: visible;
  transform: translateY(0) scale(1);
}

/* ---------- HEADER ---------- */
.gai-header {
  flex: 0 0 auto;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 18px 18px;
  background: linear-gradient(135deg, var(--gai-primary), var(--gai-accent) 120%);
  background-size: 200% 200%;
  animation: gaiGradientShift 6s ease infinite;
  color: #fff;
}

@keyframes gaiGradientShift {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

.gai-header-avatar {
  flex: 0 0 auto;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.18);
  border: 1px solid rgba(255, 255, 255, 0.3);
  backdrop-filter: blur(6px);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.15rem;
}

.gai-header-text {
  flex: 1 1 auto;
  min-width: 0;
}

.gai-header-text h3 {
  margin: 0;
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  line-height: 1.2;
}

.gai-header-text p {
  margin: 2px 0 0;
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.85);
  font-weight: 500;
}

.gai-close {
  flex: 0 0 auto;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  border: none;
  background: rgba(255, 255, 255, 0.14);
  color: #fff;
  font-size: 0.95rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.2s ease, transform 0.2s ease;
}

.gai-close:hover {
  background: rgba(255, 255, 255, 0.28);
  transform: scale(1.06);
}

/* ---------- BODY / MESSAGES ---------- */
.gai-body {
  flex: 1 1 auto;
  overflow-y: auto;
  padding: 20px 18px;
  background: var(--gai-bg-body);
  display: flex;
  flex-direction: column;
  gap: 14px;
  scroll-behavior: smooth;
}

.gai-body::-webkit-scrollbar {
  width: 6px;
}

.gai-body::-webkit-scrollbar-thumb {
  background: var(--gai-border-strong);
  border-radius: 10px;
}

.gai-msg {
  max-width: 86%;
  display: flex;
  flex-direction: column;
  gap: 6px;
  animation: gaiFadeUp 0.35s ease forwards;
}

@keyframes gaiFadeUp {
  0% { opacity: 0; transform: translateY(10px); }
  100% { opacity: 1; transform: translateY(0); }
}

.gai-msg-ai {
  align-self: flex-start;
}

.gai-msg-user {
  align-self: flex-end;
}

.gai-bubble {
  padding: 13px 16px;
  font-size: 0.92rem;
  line-height: 1.55;
  word-wrap: break-word;
}

.gai-msg-ai .gai-bubble {
  background: var(--gai-bg-card);
  color: var(--gai-text);
  border: 1px solid var(--gai-border);
  border-radius: var(--gai-radius-card);
  border-bottom-left-radius: 6px;
  box-shadow: var(--gai-shadow-card);
}

.gai-msg-user .gai-bubble {
  background: linear-gradient(135deg, var(--gai-primary), var(--gai-accent));
  color: #fff;
  border-radius: var(--gai-radius-card);
  border-bottom-right-radius: 6px;
  box-shadow: var(--gai-shadow-btn);
}

.gai-bubble p {
  margin: 0 0 8px;
}

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

/* ---------- QUICK PROMPTS ---------- */
.gai-quick-prompts {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 4px;
  align-self: flex-start;
  max-width: 100%;
}

.gai-chip {
  background: var(--gai-badge-bg);
  color: var(--gai-badge-text);
  border: none;
  padding: 9px 16px;
  border-radius: var(--gai-radius-pill);
  font-family: "Inter", sans-serif;
  font-size: 0.83rem;
  font-weight: 600;
  cursor: pointer;
  transition: 0.25s;
  text-align: left;
}

.gai-chip:hover {
  background: var(--gai-primary);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 8px 18px rgba(37, 99, 235, 0.22);
}

/* ---------- TYPING INDICATOR ---------- */
.gai-typing {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 2px;
}

.gai-typing span {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--gai-text-muted);
  opacity: 0.6;
  animation: gaiTypingBlink 1.2s infinite ease-in-out;
}

.gai-typing span:nth-child(2) { animation-delay: 0.15s; }
.gai-typing span:nth-child(3) { animation-delay: 0.3s; }

@keyframes gaiTypingBlink {
  0%, 80%, 100% { transform: translateY(0); opacity: 0.4; }
  40% { transform: translateY(-4px); opacity: 1; }
}

/* ---------- INPUT AREA ---------- */
.gai-input-area {
  flex: 0 0 auto;
  display: flex;
  align-items: flex-end;
  gap: 10px;
  padding: 14px 16px;
  background: var(--gai-bg-card);
  border-top: 1px solid var(--gai-border);
}

.gai-textarea {
  flex: 1 1 auto;
  resize: none;
  max-height: 120px;
  min-height: 44px;
  padding: 12px 16px;
  border: 1px solid var(--gai-border-strong);
  border-radius: var(--gai-radius-card);
  font-family: "Inter", sans-serif;
  font-size: 0.92rem;
  color: var(--gai-text);
  background: var(--gai-bg-body);
  transition: 0.2s;
  line-height: 1.4;
}

.gai-textarea::placeholder {
  color: var(--gai-text-muted);
}

.gai-textarea:focus {
  outline: none;
  border-color: var(--gai-primary);
  box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.1);
  background: var(--gai-bg-card);
}

.gai-send {
  flex: 0 0 auto;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: none;
  background: var(--gai-primary);
  color: #fff;
  font-size: 1rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: 0.25s;
  box-shadow: var(--gai-shadow-btn);
}

.gai-send:hover:not(:disabled) {
  background: var(--gai-primary-dark);
  transform: translateY(-3px);
  box-shadow: var(--gai-shadow-btn-hover);
}

.gai-send:disabled {
  background: var(--gai-border-strong);
  color: var(--gai-text-muted);
  cursor: not-allowed;
  box-shadow: none;
  transform: none;
}

.gai-footnote {
  flex: 0 0 100%;
  text-align: center;
  font-size: 0.72rem;
  color: var(--gai-text-muted);
  padding: 0 16px 12px;
  background: var(--gai-bg-card);
}

/* ---------- RESPONSIVE ---------- */
@media (max-width: 640px) {
  .gai-fab {
    right: 20px;
    bottom: 86px;
    padding: 0;
    width: 56px;
    height: 56px;
    justify-content: center;
  }

  .gai-fab .gai-fab-label {
    display: none;
  }

  .gai-panel {
    right: 0;
    left: 0;
    bottom: 0;
    top: 0;
    width: 100%;
    max-width: 100%;
    height: 100%;
    height: 100dvh;
    border-radius: 0;
    transform: translateY(16px);
  }

  .gai-panel.gai-open {
    transform: translateY(0);
  }

  .gai-header {
    padding-top: max(18px, env(safe-area-inset-top));
  }

  .gai-input-area {
    padding-bottom: max(14px, env(safe-area-inset-bottom));
  }
}

@media (max-width: 480px) {
  .gai-fab {
    width: 52px;
    height: 52px;
    bottom: 80px;
    right: 16px;
  }

  .gai-msg {
    max-width: 92%;
  }
}