/* ==========================================================================
   Google Gemini Web Interface Stylesheet
   Designed to match official Gemini UI (https://gemini.google.com/app?hl=ko)
   ========================================================================== */

:root {
  --bg-top-glow: #e2eeff;
  --bg-mid-glow: #f0f6ff;
  --bg-bottom: #e6f0fc;
  --text-primary: #1f1f1f;
  --text-secondary: #444746;
  --text-tertiary: #72777e;
  --text-disabled: #a8adb4;
  
  --google-blue: #1a73e8;
  --google-blue-hover: #1557b0;
  --google-blue-light: #e8f0fe;
  
  --pill-bg: #ffffff;
  --pill-border: rgba(0, 0, 0, 0.09);
  --pill-shadow: 0 4px 18px rgba(25, 45, 80, 0.07), 0 1px 3px rgba(0, 0, 0, 0.04);
  --pill-shadow-focus: 0 6px 24px rgba(26, 115, 232, 0.14), 0 2px 6px rgba(0, 0, 0, 0.06);

  --card-bg: rgba(255, 255, 255, 0.85);
  --user-bubble-bg: #e9f1fc;
  
  --font-family: 'Google Sans', 'Noto Sans KR', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --code-font: 'JetBrains Mono', monospace;
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html, body {
  width: 100%;
  height: 100%;
  font-family: var(--font-family);
  color: var(--text-primary);
  background: radial-gradient(1300px circle at 50% 20%, #e2efff 0%, #f1f6fe 40%, #e6f1fc 85%, #f5f9fe 100%);
  background-attachment: fixed;
  overflow: hidden;
  -webkit-font-smoothing: antialiased;
}

/* App Main Grid / Flex Layout */
.gemini-app {
  display: flex;
  flex-direction: column;
  width: 100%;
  height: 100vh;
  height: 100dvh;
  position: relative;
  overflow: hidden;
}

/* --------------------------------------------------------------------------
   Top Navigation Header
   -------------------------------------------------------------------------- */
.app-header {
  height: 48px;
  min-height: 48px;
  flex-shrink: 0;
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
  z-index: 20;
  background: rgba(245, 249, 254, 0.6);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid rgba(0, 0, 0, 0.04);
}

.header-left {
  display: flex;
  align-items: center;
  gap: 12px;
}

.gemini-brand {
  display: flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
  cursor: pointer;
  padding: 6px 10px;
  border-radius: 12px;
  transition: background-color 0.2s;
}

.gemini-brand:hover {
  background-color: rgba(255, 255, 255, 0.5);
}

.gemini-logo-icon {
  width: 24px;
  height: 24px;
  animation: subtleSpin 20s linear infinite;
}

@keyframes subtleSpin {
  0% { transform: rotate(0deg); }
  50% { transform: rotate(180deg); }
  100% { transform: rotate(360deg); }
}

.brand-text {
  font-size: 1.18rem;
  font-weight: 500;
  letter-spacing: -0.02em;
  color: var(--text-primary);
}

.brand-badge {
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--google-blue);
  background: var(--google-blue-light);
  padding: 2px 8px;
  border-radius: 12px;
  letter-spacing: 0.02em;
}

.header-right {
  display: flex;
  align-items: center;
  gap: 10px;
}

.status-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.76rem;
  font-weight: 500;
  color: var(--text-secondary);
  background: rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(8px);
  padding: 4px 10px;
  border-radius: 20px;
  border: 1px solid rgba(0, 0, 0, 0.05);
}

.status-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background-color: #fbbc04; /* Default checking */
  transition: background-color 0.3s;
}

.status-chip.online .status-dot {
  background-color: #34a853;
  box-shadow: 0 0 8px rgba(52, 168, 83, 0.5);
}

.status-chip.offline .status-dot {
  background-color: #ea4335;
}

.new-chat-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  height: 32px;
  padding: 0 12px;
  font-family: inherit;
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--text-secondary);
  background: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(0, 0, 0, 0.08);
  border-radius: 16px;
  cursor: pointer;
  transition: all 0.2s ease;
}

.new-chat-btn:hover {
  background: #ffffff;
  color: var(--google-blue);
  border-color: rgba(26, 115, 232, 0.3);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

/* --------------------------------------------------------------------------
   Main Container (Landing vs Chat View)
   Takes 100% full screen width, centering content up to 1040px
   -------------------------------------------------------------------------- */
.main-container {
  flex: 1 1 0;
  min-height: 0;
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
  width: 100%;
  max-width: 100%;
  margin: 0;
  padding: 0;
}

/* General Hidden Utility */
.hidden,
.landing-view.hidden,
.chat-view.hidden,
.gemini-app.in-chat .landing-view {
  display: none !important;
}

/* 1. Landing View */
.landing-view {
  flex: 1 1 0;
  min-height: 0;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  padding: 40px 24px;
  width: 100%;
  max-width: 100%;
  margin: 0 auto;
  transition: opacity 0.2s ease, transform 0.2s ease;
}

.landing-view.fade-out {
  opacity: 0;
  transform: translateY(-20px);
  pointer-events: none;
}

.hero-content {
  width: 100%;
  max-width: 960px;
  margin-bottom: 32px;
}

/* Exact text from screenshot */
.greeting-heading {
  font-size: 2.35rem;
  font-weight: 500;
  letter-spacing: -0.025em;
  color: #1f1f1f;
  line-height: 1.35;
}

.landing-input-anchor {
  width: 100%;
  max-width: 940px;
  display: flex;
  flex-direction: column;
  align-items: center;
  margin-bottom: 28px;
}

/* Suggestion Chips */
.suggestion-container {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
  width: 100%;
  max-width: 940px;
  margin-top: 6px;
}

.suggestion-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 11px 20px;
  background: rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(0, 0, 0, 0.06);
  border-radius: 24px;
  font-family: inherit;
  font-size: 0.92rem;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.2s ease;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.03);
}

.suggestion-chip:hover {
  background: #ffffff;
  color: var(--google-blue);
  border-color: rgba(26, 115, 232, 0.3);
  transform: translateY(-2px);
  box-shadow: 0 4px 14px rgba(26, 115, 232, 0.12);
}

.chip-icon {
  font-size: 1.05rem;
}

/* 2. Chat Conversation View - Spans 100% full width with right-edge scrollbar */
.chat-view {
  flex: 1 1 0;
  min-height: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  overflow-y: auto;
  overflow-x: hidden;
  width: 100%;
  padding-top: 14px;
  padding-bottom: 76px;
  padding-left: 20px;
  padding-right: 20px;
  scroll-behavior: smooth;
}

.chat-view.hidden {
  display: none;
}

/* Custom Scrollbar at right edge of window */
.chat-view::-webkit-scrollbar {
  width: 8px;
}

.chat-view::-webkit-scrollbar-thumb {
  background-color: rgba(0, 0, 0, 0.18);
  border-radius: 10px;
}

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

.chat-messages {
  display: flex;
  flex-direction: column;
  gap: 20px;
  width: 100%;
  max-width: 1040px;
}

/* Message Rows */
.message-row {
  display: flex;
  width: 100%;
  animation: fadeInMsg 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes fadeInMsg {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* User Message */
.message-row.user {
  justify-content: flex-end;
}

.user-bubble {
  max-width: 78%;
  background: #f0f4f9;
  border: 1px solid rgba(0, 0, 0, 0.06);
  border-radius: 18px 18px 4px 18px;
  padding: 10px 18px;
  font-size: 0.98rem;
  line-height: 1.55;
  color: var(--text-primary);
  white-space: pre-wrap;
  word-break: break-word;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.03);
}

/* Assistant Message */
.message-row.assistant {
  justify-content: flex-start;
  gap: 14px;
}

.assistant-avatar {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  margin-top: 2px;
}

.assistant-avatar svg {
  width: 100%;
  height: 100%;
}

.assistant-content-wrapper {
  flex: 1;
  max-width: calc(100% - 42px);
  display: flex;
  flex-direction: column;
  gap: 6px;
}

/* Model Tag & Thought Header */
.assistant-meta {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.78rem;
  color: var(--text-tertiary);
}

.assistant-model-pill {
  background: rgba(26, 115, 232, 0.08);
  color: var(--google-blue);
  padding: 2px 8px;
  border-radius: 10px;
  font-weight: 500;
}

/* Thinking Box (사고 모델 아코디언) */
.thought-card {
  background: rgba(255, 255, 255, 0.75);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(0, 0, 0, 0.08);
  border-radius: 10px;
  padding: 6px 12px;
  margin-bottom: 4px;
  font-size: 0.83rem;
  color: var(--text-secondary);
}

.thought-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  user-select: none;
}

.thought-title-group {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 500;
  color: #4285f4;
}

.thought-sparkle {
  display: inline-block;
  animation: pulseThought 1.8s infinite ease-in-out;
}

@keyframes pulseThought {
  0%, 100% { opacity: 0.6; transform: scale(0.95); }
  50% { opacity: 1; transform: scale(1.1); }
}

.thought-toggle-btn {
  font-size: 0.78rem;
  color: var(--text-tertiary);
  background: none;
  border: none;
  cursor: pointer;
}

.thought-body {
  margin-top: 8px;
  padding-top: 8px;
  border-top: 1px dashed rgba(0, 0, 0, 0.08);
  font-size: 0.84rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

.thought-body.hidden {
  display: none;
}

/* Assistant Markdown Body */
.assistant-body {
  font-size: 1.02rem;
  line-height: 1.68;
  color: var(--text-primary);
  word-break: break-word;
}

.assistant-body p {
  margin-bottom: 12px;
}

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

.assistant-body h1, .assistant-body h2, .assistant-body h3 {
  margin-top: 16px;
  margin-bottom: 10px;
  font-weight: 600;
  color: #111827;
}

.assistant-body ul, .assistant-body ol {
  margin-left: 22px;
  margin-bottom: 12px;
}

.assistant-body li {
  margin-bottom: 6px;
}

.assistant-body strong {
  font-weight: 600;
  color: #111;
}

.assistant-body code {
  font-family: var(--code-font);
  font-size: 0.88em;
  background: rgba(0, 0, 0, 0.05);
  padding: 2px 6px;
  border-radius: 4px;
  color: #d93025;
}

.code-block-wrapper {
  position: relative;
  margin: 14px 0;
  background: #1e1e1e;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.12);
}

.code-block-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 16px;
  background: #2d2d2d;
  color: #bbb;
  font-size: 0.78rem;
  font-family: var(--code-font);
}

.code-copy-btn {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 6px;
  color: #eee;
  padding: 3px 8px;
  font-size: 0.75rem;
  font-family: inherit;
  cursor: pointer;
  transition: all 0.2s;
}

.code-copy-btn:hover {
  background: rgba(255, 255, 255, 0.15);
  border-color: rgba(255, 255, 255, 0.4);
}

.code-block-wrapper pre {
  margin: 0;
  padding: 16px;
  overflow-x: auto;
  font-family: var(--code-font);
  font-size: 0.9rem;
  line-height: 1.55;
  color: #f8f8f2;
}

.code-block-wrapper code {
  background: transparent;
  padding: 0;
  color: inherit;
}

/* Assistant Action Footer */
.assistant-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 10px;
}

.action-icon-btn {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 8px;
  background: transparent;
  border: none;
  border-radius: 8px;
  color: var(--text-tertiary);
  font-size: 0.8rem;
  cursor: pointer;
  transition: all 0.2s;
}

.action-icon-btn:hover {
  background: rgba(0, 0, 0, 0.05);
  color: var(--text-secondary);
}

/* Loading Skeleton Animation */
.loading-dots {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 0;
}

.loading-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--google-blue);
  animation: bounceDot 1.4s infinite ease-in-out both;
}

.loading-dot:nth-child(1) { animation-delay: -0.32s; }
.loading-dot:nth-child(2) { animation-delay: -0.16s; }
.loading-dot:nth-child(3) { animation-delay: 0s; }

@keyframes bounceDot {
  0%, 80%, 100% { transform: scale(0); opacity: 0.3; }
  40% { transform: scale(1); opacity: 1; }
}

/* --------------------------------------------------------------------------
   Floating Pill Input Container (Exact Replica of User's Attached Screenshot)
   -------------------------------------------------------------------------- */
.input-section {
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  transition: all 0.3s ease;
  z-index: 30;
}

/* Landing state: seamlessly flows between greeting and suggestions */
.gemini-app:not(.in-chat) .input-section {
  position: static;
  width: 100%;
  max-width: 940px;
  margin: 0 auto;
  padding: 0;
  pointer-events: auto;
}

/* Chat state: docks at bottom with atmospheric blur */
.gemini-app.in-chat .input-section {
  position: absolute;
  bottom: 10px;
  left: 0;
  width: 100%;
  padding: 0 20px;
  pointer-events: none;
}

.gemini-app.in-chat .input-footer-note {
  display: none;
}

.input-pill-container {
  pointer-events: auto;
  display: flex;
  align-items: center;
  width: 100%;
  max-width: 940px;
  min-height: 58px;
  background: var(--pill-bg);
  border: 1px solid var(--pill-border);
  border-radius: 32px;
  padding: 6px 14px;
  box-shadow: var(--pill-shadow);
  transition: all 0.25s cubic-bezier(0.2, 0, 0, 1);
  position: relative;
}

.input-pill-container:focus-within {
  border-color: rgba(26, 115, 232, 0.35);
  box-shadow: var(--pill-shadow-focus);
}

/* Plus Add Button */
.pill-btn.add-btn {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  border: none;
  background: transparent;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: background-color 0.2s, color 0.2s;
  flex-shrink: 0;
}

.pill-btn.add-btn:hover {
  background-color: rgba(0, 0, 0, 0.05);
  color: var(--text-primary);
}

/* Gemini Sparkle Shield Icon */
.gemini-input-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  margin-left: 2px;
  margin-right: 6px;
  flex-shrink: 0;
}

/* Input Area Wrapper */
.input-wrapper {
  flex: 1;
  display: flex;
  align-items: center;
  min-height: 40px;
}

#promptInput {
  width: 100%;
  max-height: 140px;
  min-height: 24px;
  padding: 8px 6px;
  border: none;
  outline: none;
  background: transparent;
  font-family: inherit;
  font-size: 1.02rem;
  color: var(--text-primary);
  line-height: 1.45;
  resize: none;
}

#promptInput::placeholder {
  color: #80868b;
  font-size: 1rem;
}

/* Right Action Buttons Group */
.pill-actions-right {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
  margin-left: 6px;
}

/* Model Selector Button (Matching "사고 모델 v" in screenshot) */
.model-selector-wrapper {
  position: relative;
}

.model-select-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  height: 36px;
  padding: 0 12px;
  background: transparent;
  border: none;
  border-radius: 18px;
  font-family: inherit;
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.2s;
  user-select: none;
}

.model-select-btn:hover {
  background-color: rgba(0, 0, 0, 0.05);
  color: var(--text-primary);
}

.model-select-btn .chevron-icon {
  transition: transform 0.2s;
}

.model-select-btn[aria-expanded="true"] .chevron-icon {
  transform: rotate(180deg);
}

/* Dropdown Menu Popover */
.model-dropdown-menu {
  position: absolute;
  bottom: calc(100% + 12px);
  right: 0;
  width: 320px;
  background: #ffffff;
  border: 1px solid rgba(0, 0, 0, 0.1);
  border-radius: 18px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.14), 0 2px 8px rgba(0, 0, 0, 0.06);
  padding: 12px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px) scale(0.97);
  transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  z-index: 100;
}

.model-dropdown-menu.show {
  opacity: 1;
  visibility: visible;
  transform: translateY(0) scale(1);
}

.dropdown-header {
  padding: 4px 8px 10px 8px;
  border-bottom: 1px solid rgba(0, 0, 0, 0.06);
  margin-bottom: 6px;
}

.dropdown-title {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.model-options-list {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.model-option {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 10px 12px;
  border-radius: 12px;
  cursor: pointer;
  transition: background-color 0.18s;
}

.model-option:hover {
  background-color: #f1f5f9;
}

.model-option.active {
  background-color: var(--google-blue-light);
}

.option-check {
  width: 20px;
  height: 20px;
  margin-top: 2px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--google-blue);
  opacity: 0;
}

.model-option.active .option-check {
  opacity: 1;
}

.option-info {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.option-header-row {
  display: flex;
  align-items: center;
  gap: 6px;
}

.option-title {
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--text-primary);
}

.option-badge {
  font-size: 0.7rem;
  font-weight: 600;
  padding: 1px 6px;
  border-radius: 8px;
}

.default-badge {
  background: #e8f0fe;
  color: #1a73e8;
}

.fast-badge {
  background: #e6f4ea;
  color: #137333;
}

.agent-badge {
  background: #fce8e6;
  color: #c5221f;
}

.option-desc {
  font-size: 0.78rem;
  color: var(--text-secondary);
  line-height: 1.35;
}

/* Mic & Send Buttons */
.pill-btn.mic-btn,
.pill-btn.send-btn {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  border: none;
  background: transparent;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.2s ease;
  flex-shrink: 0;
}

.pill-btn.mic-btn:hover {
  background-color: rgba(0, 0, 0, 0.05);
  color: var(--text-primary);
}

.pill-btn.mic-btn.listening {
  background-color: #ea4335;
  color: #ffffff;
  animation: pulseMic 1.2s infinite;
}

@keyframes pulseMic {
  0% { box-shadow: 0 0 0 0 rgba(234, 67, 53, 0.6); }
  70% { box-shadow: 0 0 0 10px rgba(234, 67, 53, 0); }
  100% { box-shadow: 0 0 0 0 rgba(234, 67, 53, 0); }
}

.pill-btn.send-btn {
  background: rgba(0, 0, 0, 0.04);
  color: var(--text-disabled);
  cursor: not-allowed;
}

.pill-btn.send-btn.active {
  background: var(--google-blue);
  color: #ffffff;
  cursor: pointer;
  box-shadow: 0 2px 6px rgba(26, 115, 232, 0.35);
}

.pill-btn.send-btn.active:hover {
  background: var(--google-blue-hover);
  transform: scale(1.04);
}

/* Footer Disclaimer */
.input-footer-note {
  margin-top: 10px;
  font-size: 0.74rem;
  color: var(--text-tertiary);
  text-align: center;
}

/* Voice Toast Banner */
.voice-toast {
  position: fixed;
  top: 80px;
  left: 50%;
  transform: translateX(-50%);
  background: #ffffff;
  border: 1px solid rgba(0, 0, 0, 0.1);
  border-radius: 30px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
  padding: 10px 20px;
  display: flex;
  align-items: center;
  gap: 12px;
  z-index: 200;
  animation: slideDownToast 0.25s ease-out;
}

.voice-toast.hidden {
  display: none;
}

@keyframes slideDownToast {
  from { opacity: 0; transform: translate(-50%, -10px); }
  to { opacity: 1; transform: translate(-50%, 0); }
}

.voice-pulse {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #ea4335;
  animation: voiceDotPulse 1s infinite alternate;
}

@keyframes voiceDotPulse {
  from { transform: scale(0.8); opacity: 0.6; }
  to { transform: scale(1.4); opacity: 1; }
}

.voice-text {
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--text-primary);
}

.voice-stop-btn {
  background: #f1f3f4;
  border: none;
  border-radius: 12px;
  padding: 4px 10px;
  font-size: 0.8rem;
  color: var(--text-secondary);
  cursor: pointer;
}

.voice-stop-btn:hover {
  background: #e8eaed;
}

/* --------------------------------------------------------------------------
   Responsive Design
   -------------------------------------------------------------------------- */
@media (max-width: 640px) {
  .greeting-heading {
    font-size: 1.6rem;
  }
  .input-pill-container {
    padding: 6px 10px;
  }
  .model-select-btn .model-name-text {
    max-width: 80px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }
  .model-dropdown-menu {
    width: 280px;
    right: -40px;
  }
}