/* Reset and Base Styles */
* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: -apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Oxygen,Ubuntu,Cantarell,sans-serif; line-height: 1.6; color: #333; background: #f8fafc; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }
header { background: linear-gradient(135deg,#38bdf8 0%,#34d399 100%); color: #fff; padding: 2rem 0; box-shadow: 0 2px 10px rgba(0,0,0,0.07); }
header .container { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; }
#main-title { font-size: 2.2rem; font-weight: 700; }
.language-selector select { padding: 0.5rem 1rem; border: none; border-radius: 8px; background: rgba(255,255,255,0.2); color: #fff; font-size: 1rem; cursor: pointer; }
.main-nav { background: #fff; border-bottom: 1px solid #e2e8f0; position: sticky; top: 0; z-index: 100; }
.main-nav ul { list-style: none; display: flex; gap: 2rem; padding: 1rem 0; }
.main-nav a { text-decoration: none; color: #38bdf8; font-weight: 500; padding: 0.5rem 1rem; border-radius: 6px; transition: all 0.3s; }
.main-nav a:hover { background: #e0f2fe; color: #0e7490; }
main { padding: 2rem 0; }
section { margin-bottom: 3rem; }
h2 { font-size: 1.7rem; color: #0e7490; margin-bottom: 1.5rem; text-align: center; }
h3 { font-size: 1.2rem; color: #0891b2; margin-bottom: 1rem; }
.overview-content {
    width: 100%;
    padding: 0 0.5rem;
    margin: 0 auto;
}
.warning-box { background: linear-gradient(90deg,#f87171 0%,#fbbf24 100%); border-radius: 10px; padding: 1.2rem; color: #fff; margin: 1.5rem 0; font-weight: 600; }
.info-box { background: #e0f2fe; border-radius: 10px; padding: 1.2rem; color: #0369a1; margin: 1.5rem 0; }
.table-container { overflow-x: auto; border-radius: 10px; box-shadow: 0 2px 10px rgba(0,0,0,0.06); }
.color-table { width: 100%; border-collapse: collapse; background: #fff; }
.color-table th {
    background: #e6f0fa;
    color: #333;
    padding: 1rem;
    text-align: left;
    font-weight: 700;
    font-size: 1.08rem;
    border-bottom: 2.5px solid #e2e8f0;
}
.color-table th:first-child {
    border-top-left-radius: 16px;
    border-left: 2.5px solid #e2e8f0;
}
.color-table th:last-child {
    border-top-right-radius: 16px;
    border-right: 2.5px solid #e2e8f0;
}
.color-table td { padding: 0.8rem; border-bottom: 1px solid #e2e8f0; }
.color-table a { color: #0e7490; text-decoration: none; font-weight: 600; }
.color-table a:hover { text-decoration: underline; }
.color-row.brown { background: linear-gradient(90deg,#b45309 0%,#f59e42 100%); color: #fff; }
.color-row.green { background: linear-gradient(90deg,#22c55e 0%,#4ade80 100%); color: #fff; }
.color-row.yellow { background: linear-gradient(90deg,#facc15 0%,#fde047 100%); color: #7c4700; }
.color-row.red { background: linear-gradient(90deg,#ef4444 0%,#f87171 100%); color: #fff; }
.color-row.black { background: linear-gradient(90deg,#334155 0%,#64748b 100%); color: #fff; }
.color-row.white { background: linear-gradient(90deg,#f1f5f9 0%,#e2e8f0 100%); color: #334155; }
.color-row.orange { background: linear-gradient(90deg,#fb923c 0%,#fdba74 100%); color: #fff; }
.color-row.blue { background: linear-gradient(90deg,#38bdf8 0%,#60a5fa 100%); color: #fff; }
.color-grid { display: grid; grid-template-columns: repeat(auto-fit,minmax(260px,1fr)); gap: 1.5rem; margin-top: 1.5rem; }
.color-card { background: #fff; border-radius: 10px; padding: 1.2rem; box-shadow: 0 2px 10px rgba(0,0,0,0.07); border-left: 6px solid; }
.color-card.brown { border-left-color: #b45309; }
.color-card.green { border-left-color: #22c55e; }
.color-card.yellow { border-left-color: #facc15; }
.color-card.red { border-left-color: #ef4444; }
.color-card.black { border-left-color: #334155; }
.color-card.white { border-left-color: #f1f5f9; }
.color-card.orange { border-left-color: #fb923c; }
.color-card.blue { border-left-color: #38bdf8; }
.terms-grid { display: grid; grid-template-columns: repeat(auto-fit,minmax(260px,1fr)); gap: 1.5rem; margin-top: 1.5rem; }
.term-card { background: #fff; border-radius: 10px; padding: 1.2rem; box-shadow: 0 2px 10px rgba(0,0,0,0.07); border-top: 4px solid #38bdf8; }
footer { background: #334155; color: #fff; text-align: center; padding: 1.5rem 0; margin-top: 2rem; font-size: 0.95rem; }
@media (max-width: 768px) { header .container { flex-direction: column; gap: 1rem; text-align: center; } #main-title { font-size: 1.5rem; } .main-nav ul { flex-direction: column; gap: 0.5rem; } .color-grid, .terms-grid { grid-template-columns: 1fr; } .table-container { font-size: 0.95rem; } }
@media (max-width: 480px) { 
  .container { padding: 0 10px; } 
  .color-card, .term-card { padding: 0.8rem; }
  
  .body-content {
    gap: 0.6rem;
  }
  
  .poop-icon {
    width: 75px !important;
    height: 75px !important;
  }
}

/* AI Analysis Section */
.analysis-container { margin-top: 1.5rem; }
.analysis-content { background: #fff; border-radius: 10px; padding: 2rem; box-shadow: 0 2px 10px rgba(0,0,0,0.07); margin-bottom: 1.5rem; }
.upload-section { margin: 2rem 0; text-align: center; }
.file-upload { margin-bottom: 1.5rem; }
.upload-button { display: inline-block; padding: 1rem 2rem; background: linear-gradient(135deg,#38bdf8 0%,#34d399 100%); color: #fff; border: none; border-radius: 8px; cursor: pointer; font-size: 1.1rem; font-weight: 600; text-decoration: none; transition: all 0.3s; }
.upload-button:hover { transform: translateY(-2px); box-shadow: 0 4px 15px rgba(56,189,248,0.3); }
.upload-info { margin-top: 0.5rem; }
.upload-info p { font-size: 0.9rem; color: #64748b; }
.image-preview { margin: 1.5rem 0; }
.analyze-button { display: inline-block; padding: 0.8rem 1.5rem; background: linear-gradient(135deg,#22c55e 0%,#16a34a 100%); color: #fff; border: none; border-radius: 8px; cursor: pointer; font-size: 1rem; font-weight: 600; margin-top: 1rem; transition: all 0.3s; }
.analyze-button:hover { transform: translateY(-2px); box-shadow: 0 4px 15px rgba(34,197,94,0.3); }
.analysis-results { margin-top: 2rem; }
.result-header { border-bottom: 2px solid #e2e8f0; padding-bottom: 1rem; margin-bottom: 1.5rem; }
.result-header h3 { color: #0e7490; margin: 0; }
.result-content { line-height: 1.6; }
.result-item { margin-bottom: 1.5rem; padding: 1rem; border-left: 4px solid #38bdf8; background: #f8fafc; border-radius: 0 6px 6px 0; }
.result-item h4 { color: #0e7490; margin-bottom: 0.5rem; }
.result-item p { margin: 0; }
.result-item ul { margin: 0.5rem 0; padding-left: 1.5rem; }
.result-item li { margin-bottom: 0.25rem; }
.loading { text-align: center; padding: 2rem; }
.spinner { width: 40px; height: 40px; border: 4px solid #e2e8f0; border-top: 4px solid #38bdf8; border-radius: 50%; animation: spin 1s linear infinite; margin: 0 auto 1rem; }
@keyframes spin { 0% { transform: rotate(0deg); } 100% { transform: rotate(360deg); } }
.loading p { color: #64748b; font-weight: 500; }
.error-message { background: #fef2f2; border: 1px solid #fecaca; color: #dc2626; padding: 1rem; border-radius: 6px; margin: 1rem 0; }
.success-message { background: #f0fdf4; border: 1px solid #bbf7d0; color: #16a34a; padding: 1rem; border-radius: 6px; margin: 1rem 0; }

@media (max-width: 768px) { .analysis-content { padding: 1rem; } .upload-button { padding: 0.8rem 1.5rem; font-size: 1rem; } .analyze-button { padding: 0.6rem 1.2rem; font-size: 0.9rem; } }

.color-detail-list {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  margin-top: 1.5rem;
}
.collapsible-card {
  border-radius: 10px;
  box-shadow: 0 2px 10px rgba(0,0,0,0.07);
  margin-bottom: 1.5rem;
  overflow: hidden;
  background: #fff;
  width: 100%;
}
.card-header {
  width: 100%;
  border-radius: 10px 10px 0 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  padding: 1rem 1.5rem;
  color: #fff;
}
.card-body {
  width: 100%;
  border-radius: 0 0 10px 10px;
  background: #fff;
  color: #333;
  padding: 1.5rem;
  line-height: 1.6;
}

.body-content {
  display: flex;
  gap: 0.8rem;
  align-items: flex-start;
}

.text-content {
  flex: 1;
}

.icon-content {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: flex-start;
  min-width: 110px;
}

.poop-icon {
  filter: drop-shadow(0 2px 4px rgba(0,0,0,0.1));
  width: 100px !important;
  height: 100px !important;
}
.card-body ul {
  margin: 1rem 0;
  padding-left: 1.5rem;
}
.card-body li {
  margin-bottom: 0.5rem;
}
.collapsible-card.brown .card-header { background: linear-gradient(90deg,#b45309 0%,#f59e42 100%); }
.collapsible-card.green .card-header { background: linear-gradient(90deg,#22c55e 0%,#4ade80 100%); }
.collapsible-card.yellow .card-header { background: linear-gradient(90deg,#facc15 0%,#fde047 100%); color: #7c4700; }
.collapsible-card.red .card-header { background: linear-gradient(90deg,#ef4444 0%,#f87171 100%); }
.collapsible-card.black .card-header { background: linear-gradient(90deg,#334155 0%,#64748b 100%); }
.collapsible-card.white .card-header { background: linear-gradient(90deg,#f1f5f9 0%,#e2e8f0 100%); color: #334155; }
.collapsible-card.orange .card-header { background: linear-gradient(90deg,#fb923c 0%,#fdba74 100%); }
.collapsible-card.blue .card-header { background: linear-gradient(90deg,#38bdf8 0%,#60a5fa 100%); }

.card-header h3 {
  margin: 0;
  font-size: 1.25rem;
  color: inherit;
  font-weight: 700;
}
.collapse-icon {
  font-size: 1.2rem;
  transition: transform 0.3s ease;
}

@media (max-width: 768px) {
  .card-header, .card-body { padding: 1rem; }
  
  .body-content {
    flex-direction: column;
    gap: 0.8rem;
    align-items: center;
  }
  
  .icon-content {
    min-width: 90px;
  }
  
  .poop-icon {
    width: 85px !important;
    height: 85px !important;
  }
}