/* ============================================
   文案喵 - CopyCat
   社交媒体文案生成器
   ============================================ */

/* --- CSS Variables --- */
:root {
  --pink-50: #FFF0F3;
  --pink-100: #FFE0E6;
  --pink-200: #FFC0CF;
  --pink-300: #FFA0B5;
  --pink-400: #FF7D9C;
  --pink-500: #FF6B8A;
  --pink-600: #E8547C;
  --pink-700: #C94068;
  --purple-100: #F0E6F6;
  --purple-300: #D5C6E0;
  --purple-500: #A88DB8;
  --mint-200: #D4F0E5;
  --mint-400: #A8E6CF;
  --mint-600: #6DC9A2;
  --gold: #FFD93D;
  --gold-dark: #F0C300;
  --text-primary: #4A3F4F;
  --text-secondary: #8B7E92;
  --text-muted: #B5A8BC;
  --white: #FFFFFF;
  --white-alpha: rgba(255,255,255,0.85);
  --shadow-sm: 0 2px 8px rgba(200, 160, 180, 0.15);
  --shadow-md: 0 4px 16px rgba(200, 160, 180, 0.2);
  --shadow-lg: 0 8px 32px rgba(200, 160, 180, 0.25);
  --shadow-pink: 0 4px 14px rgba(255, 107, 138, 0.3);
  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-xl: 32px;
  --font-main: 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Noto Sans SC', system-ui, sans-serif;
  --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-main);
  color: var(--text-primary);
  background: linear-gradient(135deg, #FFF0F3 0%, #FFE0E8 30%, #FFF0F8 60%, #FFE8F0 100%);
  background-attachment: fixed;
  min-height: 100vh;
  position: relative;
  overflow-x: hidden;
}

/* --- Floating Decorations --- */
.decorations {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
}

.deco-item {
  position: absolute;
  opacity: 0.25;
  animation: floatAround var(--dur) ease-in-out infinite;
  animation-delay: var(--delay);
  font-size: var(--size);
}

@keyframes floatAround {
  0%, 100% { transform: translateY(0) translateX(0) rotate(0deg); }
  25%  { transform: translateY(-15px) translateX(10px) rotate(5deg); }
  50%  { transform: translateY(-5px) translateX(-8px) rotate(-3deg); }
  75%  { transform: translateY(-20px) translateX(5px) rotate(2deg); }
}

/* --- Header --- */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--white-alpha);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--pink-100);
  padding: 0 1rem;
}

.header-inner {
  max-width: 900px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 60px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  cursor: pointer;
  user-select: none;
}

.logo-text {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--pink-600);
  letter-spacing: 0.03em;
}

.cat-icon {
  width: 36px;
  height: 36px;
  flex-shrink: 0;
}

.nav-links {
  display: flex;
  gap: 0.25rem;
}

.nav-btn {
  position: relative;
  padding: 0.45rem 0.85rem;
  border: none;
  background: transparent;
  color: var(--text-secondary);
  font-size: 0.9rem;
  font-family: var(--font-main);
  cursor: pointer;
  border-radius: var(--radius-sm);
  transition: all var(--transition);
  display: flex;
  align-items: center;
  gap: 0.3rem;
}

.nav-btn:hover {
  background: var(--pink-50);
  color: var(--pink-600);
}

.nav-btn.active {
  background: var(--pink-100);
  color: var(--pink-600);
  font-weight: 600;
}

.nav-icon {
  font-size: 1rem;
}

.badge {
  background: var(--pink-500);
  color: white;
  font-size: 0.7rem;
  min-width: 18px;
  height: 18px;
  border-radius: 9px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 5px;
  font-weight: 600;
}

/* --- Main --- */
.main {
  max-width: 900px;
  margin: 0 auto;
  padding: 1.5rem 1rem 3rem;
  position: relative;
  z-index: 1;
}

/* --- Panels --- */
.panel {
  display: none;
}

.panel.active {
  display: block;
}

/* --- Hero --- */
.hero {
  text-align: center;
  padding: 2rem 0 1rem;
}

.hero-cat {
  width: 100px;
  height: 100px;
  margin: 0 auto 1rem;
}

.hero-title {
  font-size: 2rem;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
  letter-spacing: 0.02em;
}

.hero-subtitle {
  font-size: 1.05rem;
  color: var(--text-secondary);
}

/* --- Search Box --- */
.search-section {
  margin: 1.5rem 0;
}

.search-box-wrapper {
  max-width: 700px;
  margin: 0 auto;
}

.search-box {
  display: flex;
  align-items: center;
  background: var(--white);
  border: 2px solid var(--pink-200);
  border-radius: var(--radius-xl);
  padding: 0.35rem;
  transition: all var(--transition);
  box-shadow: var(--shadow-md);
}

.search-box:focus-within {
  border-color: var(--pink-500);
  box-shadow: var(--shadow-lg), var(--shadow-pink);
  transform: translateY(-1px);
}

.search-icon {
  font-size: 1.3rem;
  padding: 0 0.5rem 0 1rem;
  flex-shrink: 0;
}

.search-input {
  flex: 1;
  border: none;
  outline: none;
  font-size: 1rem;
  font-family: var(--font-main);
  color: var(--text-primary);
  padding: 0.75rem 0.5rem;
  background: transparent;
  min-width: 0;
}

.search-input::placeholder {
  color: var(--text-muted);
}

.btn-generate {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.75rem 1.5rem;
  border: none;
  background: linear-gradient(135deg, var(--pink-500), var(--pink-600));
  color: white;
  font-size: 1rem;
  font-weight: 600;
  font-family: var(--font-main);
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
  flex-shrink: 0;
  box-shadow: var(--shadow-pink);
}

.btn-generate:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(255, 107, 138, 0.4);
  background: linear-gradient(135deg, var(--pink-600), var(--pink-700));
}

.btn-generate:active {
  transform: translateY(0);
}

.btn-generate:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}

.btn-generate-icon {
  font-size: 1.1rem;
}

/* --- Options --- */
.options-section {
  max-width: 700px;
  margin: 0 auto;
}

.option-group {
  margin-bottom: 1rem;
}

.option-label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 0.5rem;
  padding-left: 0.25rem;
}

.option-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.chip {
  padding: 0.5rem 1rem;
  border: 1.5px solid var(--pink-200);
  background: var(--white);
  color: var(--text-primary);
  border-radius: var(--radius-xl);
  font-size: 0.88rem;
  font-family: var(--font-main);
  cursor: pointer;
  transition: all var(--transition);
  display: flex;
  align-items: center;
  gap: 0.3rem;
  white-space: nowrap;
}

.chip:hover {
  border-color: var(--pink-400);
  background: var(--pink-50);
}

.chip.active {
  background: var(--pink-500);
  color: white;
  border-color: var(--pink-500);
  font-weight: 600;
  box-shadow: var(--shadow-pink);
}

.chip-emoji {
  font-size: 0.9rem;
}

/* --- Loading --- */
.loading-section {
  text-align: center;
  padding: 2rem 0;
}

.loading-cat {
  width: 80px;
  height: 80px;
  margin: 0 auto 1rem;
}

.loading-text {
  color: var(--text-secondary);
  font-size: 1rem;
  margin-bottom: 0.75rem;
}

.loading-dots {
  display: flex;
  justify-content: center;
  gap: 0.4rem;
}

.loading-dots .dot {
  width: 8px;
  height: 8px;
  background: var(--pink-400);
  border-radius: 50%;
  animation: dotBounce 1.2s ease-in-out infinite;
}

.loading-dots .dot:nth-child(2) { animation-delay: 0.15s; }
.loading-dots .dot:nth-child(3) { animation-delay: 0.3s; }

@keyframes dotBounce {
  0%, 80%, 100% { transform: translateY(0); opacity: 0.4; }
  40% { transform: translateY(-10px); opacity: 1; }
}

/* --- Results --- */
.results-section {
  max-width: 700px;
  margin: 0 auto;
}

.results-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1rem;
}

.results-title {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--text-primary);
}

.btn-text {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 0.85rem;
  cursor: pointer;
  font-family: var(--font-main);
  transition: color var(--transition);
}

.btn-text:hover {
  color: var(--pink-500);
}

.btn-text-danger {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 0.85rem;
  cursor: pointer;
  font-family: var(--font-main);
  transition: color var(--transition);
}

.btn-text-danger:hover {
  color: #E85D75;
}

.results-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

/* --- Result Card --- */
.result-card {
  background: var(--white);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--pink-100);
  transition: all var(--transition);
  animation: cardSlideIn 0.4s ease-out;
  position: relative;
  overflow: hidden;
}

.result-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: linear-gradient(180deg, var(--pink-400), var(--purple-300));
  border-radius: 4px 0 0 4px;
}

@keyframes cardSlideIn {
  from {
    opacity: 0;
    transform: translateY(16px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.result-meta {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
  flex-wrap: wrap;
}

.result-platform-badge {
  font-size: 0.75rem;
  padding: 0.2rem 0.6rem;
  background: var(--pink-50);
  color: var(--pink-600);
  border-radius: var(--radius-sm);
  font-weight: 600;
}

.result-copy {
  font-size: 0.95rem;
  line-height: 1.8;
  color: var(--text-primary);
  margin-bottom: 1rem;
  white-space: pre-wrap;
  word-break: break-word;
}

.result-hashtags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-bottom: 0.75rem;
}

.hashtag {
  font-size: 0.82rem;
  color: var(--pink-600);
  background: var(--pink-50);
  padding: 0.2rem 0.6rem;
  border-radius: var(--radius-sm);
  font-weight: 500;
}

.result-tip {
  font-size: 0.82rem;
  color: var(--mint-600);
  background: var(--mint-200);
  padding: 0.5rem 0.75rem;
  border-radius: var(--radius-sm);
  margin-bottom: 1rem;
  display: flex;
  align-items: flex-start;
  gap: 0.35rem;
}

.result-actions {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.btn-action {
  padding: 0.5rem 1rem;
  border: 1.5px solid var(--pink-200);
  background: var(--white);
  color: var(--text-primary);
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  font-family: var(--font-main);
  cursor: pointer;
  transition: all var(--transition);
  display: flex;
  align-items: center;
  gap: 0.3rem;
}

.btn-action:hover {
  background: var(--pink-50);
  border-color: var(--pink-400);
}

.btn-action.copied {
  background: var(--mint-200);
  border-color: var(--mint-400);
  color: var(--mint-600);
}

.btn-action.favorited {
  background: #FFF8E1;
  border-color: var(--gold);
  color: var(--gold-dark);
}

/* --- Empty State --- */
.empty-state {
  text-align: center;
  padding: 2rem 0;
}

.empty-illustration {
  margin-bottom: 1rem;
}

.empty-cat {
  width: 120px;
  height: 120px;
  margin: 0 auto;
}

.empty-text {
  color: var(--text-secondary);
  font-size: 1rem;
  margin-bottom: 1.25rem;
}

.example-tags {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.5rem;
  align-items: center;
}

.example-label {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.example-chip {
  padding: 0.4rem 0.9rem;
  border: 1.5px dashed var(--pink-300);
  background: var(--pink-50);
  color: var(--pink-600);
  border-radius: var(--radius-xl);
  font-size: 0.85rem;
  font-family: var(--font-main);
  cursor: pointer;
  transition: all var(--transition);
}

.example-chip:hover {
  border-style: solid;
  background: var(--pink-100);
  transform: translateY(-1px);
}

/* --- Panel Header --- */
.panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.5rem;
}

.panel-title {
  font-size: 1.3rem;
  font-weight: 700;
}

.panel-content {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.empty-panel {
  text-align: center;
  padding: 3rem 0;
  color: var(--text-secondary);
}

.empty-icon {
  font-size: 3rem;
  margin-bottom: 0.75rem;
}

/* --- Footer --- */
.footer {
  text-align: center;
  padding: 2rem 1rem;
  position: relative;
  z-index: 1;
}

.footer-content {
  color: var(--text-muted);
  font-size: 0.85rem;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.footer-divider {
  color: var(--pink-200);
}

/* --- Toast --- */
.toast {
  position: fixed;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%) translateY(120px);
  background: var(--text-primary);
  color: white;
  padding: 0.75rem 1.25rem;
  border-radius: var(--radius-lg);
  font-size: 0.9rem;
  font-family: var(--font-main);
  display: flex;
  align-items: center;
  gap: 0.4rem;
  z-index: 999;
  transition: transform var(--transition);
  box-shadow: 0 8px 24px rgba(0,0,0,0.15);
  pointer-events: none;
}

.toast.show {
  transform: translateX(-50%) translateY(0);
}

.toast-icon {
  font-size: 1.1rem;
}

/* --- Responsive --- */
@media (max-width: 640px) {
  .hero-title {
    font-size: 1.5rem;
  }

  .hero-subtitle {
    font-size: 0.9rem;
  }

  .search-box {
    flex-direction: column;
    border-radius: var(--radius-md);
    padding: 0.5rem;
  }

  .search-input {
    width: 100%;
    padding: 0.6rem;
  }

  .btn-generate {
    width: 100%;
    justify-content: center;
    border-radius: var(--radius-md);
    margin-top: 0.25rem;
  }

  .search-icon {
    display: none;
  }

  .chip {
    font-size: 0.8rem;
    padding: 0.4rem 0.75rem;
  }

  .result-card {
    padding: 1rem;
  }

  .nav-btn {
    padding: 0.35rem 0.6rem;
    font-size: 0.8rem;
  }

  .header-inner {
    height: 52px;
  }

  .logo-text {
    font-size: 1.15rem;
  }
}

@media (max-width: 380px) {
  .chip {
    font-size: 0.75rem;
    padding: 0.35rem 0.6rem;
  }

  .option-chips {
    gap: 0.35rem;
  }

  .result-actions {
    flex-direction: column;
  }

  .theme-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* ============================================
   GUIDED DESIGN MODE STYLES
   ============================================ */

/* Progress Bar */
.progress-bar {
  display: flex;
  align-items: center;
  justify-content: center;
  max-width: 550px;
  margin: 0 auto 2rem;
  padding: 0 1rem;
}

.progress-step {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.35rem;
  position: relative;
}

.progress-dot {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--pink-100);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  transition: all var(--transition);
  border: 2px solid var(--pink-200);
}

.progress-step.done .progress-dot {
  background: var(--pink-500);
  border-color: var(--pink-500);
  color: white;
}

.progress-step.current .progress-dot {
  background: var(--white);
  border-color: var(--pink-500);
  box-shadow: 0 0 0 4px rgba(255, 107, 138, 0.2);
  animation: dotPulse 1.5s ease-in-out infinite;
}

@keyframes dotPulse {
  0%, 100% { box-shadow: 0 0 0 4px rgba(255, 107, 138, 0.2); }
  50% { box-shadow: 0 0 0 8px rgba(255, 107, 138, 0.08); }
}

.progress-label {
  font-size: 0.72rem;
  color: var(--text-muted);
  font-weight: 500;
  white-space: nowrap;
}

.progress-step.done .progress-label,
.progress-step.current .progress-label {
  color: var(--pink-600);
  font-weight: 600;
}

.progress-line {
  flex: 1;
  height: 2px;
  background: var(--pink-200);
  margin: 0 -2px;
  margin-bottom: 1.2rem;
  transition: background var(--transition);
}

.progress-line.done {
  background: var(--pink-500);
}

/* Theme Grid */
.guide-section {
  max-width: 700px;
  margin: 0 auto 1.5rem;
}

.guide-section-title {
  text-align: center;
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.75rem;
}

.guide-hero {
  padding: 1rem 0 0.5rem;
}

.theme-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.65rem;
}

.theme-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.3rem;
  padding: 1rem 0.5rem;
  border: 2px solid var(--pink-200);
  border-radius: var(--radius-md);
  background: var(--white);
  cursor: pointer;
  transition: all var(--transition);
  font-family: var(--font-main);
}

.theme-card:hover {
  border-color: var(--pink-400);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.theme-card.selected {
  border-color: var(--pink-500);
  background: var(--pink-50);
  box-shadow: var(--shadow-pink);
}

.theme-emoji {
  font-size: 1.8rem;
}

.theme-name {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--text-primary);
}

.theme-desc {
  font-size: 0.7rem;
  color: var(--text-muted);
  text-align: center;
  line-height: 1.3;
}

/* Question Card */
.question-card {
  background: var(--white);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--pink-100);
}

.q-label {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 1rem;
  line-height: 1.5;
}

.q-options {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.q-option-btn {
  padding: 0.6rem 1.1rem;
  border: 2px solid var(--pink-200);
  background: var(--white);
  color: var(--text-primary);
  border-radius: var(--radius-lg);
  font-size: 0.9rem;
  font-family: var(--font-main);
  cursor: pointer;
  transition: all var(--transition);
}

.q-option-btn:hover {
  border-color: var(--pink-400);
  background: var(--pink-50);
}

.q-option-btn.selected {
  background: var(--pink-500);
  color: white;
  border-color: var(--pink-500);
  font-weight: 600;
}

.q-text-input {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 2px solid var(--pink-200);
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  font-family: var(--font-main);
  color: var(--text-primary);
  outline: none;
  transition: border-color var(--transition);
}

.q-text-input:focus {
  border-color: var(--pink-500);
  box-shadow: 0 0 0 3px rgba(255, 107, 138, 0.1);
}

.q-text-input::placeholder {
  color: var(--text-muted);
}

.question-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  margin-top: 1rem;
}

.question-progress {
  font-size: 0.85rem;
  color: var(--text-muted);
  font-weight: 500;
}

.btn-generate:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* Anti-AI Notice */
.anti-ai-notice {
  background: linear-gradient(135deg, #FFF8E1, #FFF3E0);
  border: 1px solid var(--gold);
  border-radius: var(--radius-sm);
  padding: 0.6rem 1rem;
  font-size: 0.82rem;
  color: #B8860B;
  text-align: center;
  margin-bottom: 1rem;
}

/* Framework Card */
.framework-card {
  max-width: 700px;
  margin: 0 auto;
}

.framework-card-inner {
  background: var(--white);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--purple-100);
}

.framework-header {
  background: linear-gradient(135deg, #F5F0FF, #FFE8F0);
  padding: 0.85rem 1.25rem;
  font-weight: 700;
  font-size: 1rem;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 0.5rem;
  border-bottom: 1px solid var(--purple-100);
}

.framework-icon {
  font-size: 1.3rem;
}

.framework-body {
  padding: 0.5rem 0;
}

.framework-row {
  display: flex;
  gap: 0.75rem;
  padding: 0.75rem 1.25rem;
  border-bottom: 1px solid var(--pink-50);
  transition: background var(--transition);
}

.framework-row:last-child {
  border-bottom: none;
}

.framework-row:hover {
  background: var(--pink-50);
}

.framework-row-icon {
  font-size: 1.3rem;
  flex-shrink: 0;
  margin-top: 0.1rem;
}

.framework-row-content {
  flex: 1;
}

.framework-row-label {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--purple-500);
  margin-bottom: 0.25rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.framework-row-text {
  font-size: 0.9rem;
  color: var(--text-primary);
  line-height: 1.7;
}

/* Guide Copy Card */
.guided-copy-card {
  border-left: 4px solid var(--purple-300);
}

  .btn-action {
    width: 100%;
    justify-content: center;
  }
}