.search-container {
  width: 100%;
  max-width: 750px;
  padding: 0 2rem;
  margin-top: 2.5rem;
  animation: fadeInUp 1s ease-out 0.6s both;
}

.search-box {
  position: relative;
  width: 100%;
}

.search-input {
  width: 100%;
  padding: 1.5rem 1.75rem;
  padding-right: 4rem;
  font-family: 'DM Sans', sans-serif;
  font-size: 1.0625rem;
  border: 2px solid var(--border);
  border-radius: 20px;
  background: var(--bg-card);
  backdrop-filter: blur(20px) saturate(180%);
  color: var(--text-primary);
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: var(--shadow);
  outline: none;
}

.search-input::placeholder {
  color: var(--text-muted);
  font-weight: 300;
}

.search-input:focus {
  border-color: var(--accent);
  box-shadow: var(--shadow-lg), 0 0 0 4px rgba(196, 168, 124, 0.1);
  transform: translateY(-2px);
}

.search-btn {
  position: absolute;
  right: 10px;
  top: 50%;
  transform: translateY(-50%);
  background: linear-gradient(135deg, var(--accent), var(--accent-hover));
  border: none;
  padding: 0.875rem;
  cursor: pointer;
  color: white;
  transition: var(--transition);
  border-radius: 14px;
  box-shadow: 0 4px 12px rgba(196, 168, 124, 0.3);
}

.search-btn:hover {
  transform: translateY(-50%) scale(1.08);
  box-shadow: 0 6px 20px rgba(196, 168, 124, 0.5);
}

.search-btn:active {
  transform: translateY(-50%) scale(0.95);
}

.search-btn svg {
  width: 22px;
  height: 22px;
  display: block;
}

.api-categories {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.75rem;
  margin-top: 2rem;
  animation: fadeInUp 1s ease-out 0.8s both;
}

.api-chip {
  padding: 0.625rem 1.25rem;
  font-size: 0.8125rem;
  border: 2px solid var(--border);
  border-radius: 24px;
  background: var(--bg-card);
  backdrop-filter: blur(16px);
  color: var(--text-secondary);
  cursor: pointer;
  transition: var(--transition);
  letter-spacing: 0.03em;
  font-weight: 500;
  box-shadow: var(--shadow-sm);
  position: relative;
  overflow: hidden;
}

.api-chip::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--accent-soft), var(--accent));
  opacity: 0;
  transition: var(--transition);
}

.api-chip span {
  position: relative;
  z-index: 1;
}

.api-chip:hover {
  background: var(--accent-soft);
  border-color: var(--accent);
  color: var(--text-primary);
  transform: translateY(-3px);
  box-shadow: var(--shadow);
}

.api-chip:hover::before {
  opacity: 0.15;
}

.api-chip.active {
  background: linear-gradient(135deg, var(--accent), var(--accent-hover));
  border-color: var(--accent);
  color: white;
  box-shadow: 0 6px 20px rgba(196, 168, 124, 0.4);
  transform: translateY(-2px);
}

.api-chip.active::before {
  opacity: 0;
}

.api-chip:active {
  transform: translateY(0) scale(0.97);
}

.results-section {
  width: 100%;
  max-width: 950px;
  padding: 2.5rem 2rem;
  margin-top: 2rem;
  display: none;
  animation: fadeInUp 0.6s ease-out;
}

.results-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 2rem;
  padding-bottom: 1.25rem;
  border-bottom: 2px solid var(--border);
}

.results-header h2 {
  font-family: 'Cormorant Garamond', serif;
  font-size: 1.5rem;
  font-weight: 400;
  color: var(--text-secondary);
  letter-spacing: 0.05em;
}

.results-count {
  font-size: 0.875rem;
  color: var(--text-muted);
  font-weight: 500;
  background: var(--bg-card);
  padding: 0.5rem 1rem;
  border-radius: 20px;
  border: 1px solid var(--border);
}

.results-grid {
  display: grid;
  gap: 1.5rem;
}

.result-card {
  background: var(--bg-card);
  border: 2px solid var(--border);
  border-radius: 20px;
  padding: 2rem;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  cursor: pointer;
  animation: slideUpFade 0.6s ease-out backwards;
  position: relative;
  backdrop-filter: blur(20px);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}

.result-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--accent-soft), transparent);
  opacity: 0;
  transition: var(--transition);
}

.result-card:hover {
  transform: translateY(-6px) scale(1.01);
  box-shadow: var(--shadow-hover);
  border-color: var(--accent-soft);
}

.result-card:hover::before {
  opacity: 0.08;
}

.result-card:active {
  transform: translateY(-2px) scale(0.99);
}

@keyframes slideUpFade {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.result-source {
  display: inline-flex;
  align-items: center;
  gap: 0.625rem;
  font-size: 0.6875rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  margin-bottom: 1rem;
  font-weight: 600;
  position: relative;
  z-index: 1;
}

.source-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  box-shadow: 0 2px 8px currentColor;
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% {
    opacity: 1;
    transform: scale(1);
  }
  50% {
    opacity: 0.7;
    transform: scale(1.15);
  }
}

.source-wikipedia { background: #636363; }
.source-openlib { background: #d4a373; }
.source-dictionary { background: #81c784; }
.source-nasa { background: #0b3d91; }
.source-weather { background: #4fc3f7; }
.source-news { background: #e57373; }
.source-arxiv { background: #b31b1b; }
.source-github { background: #333333; }
.source-youtube { background: #ff0000; }

.result-title {
  font-family: 'Cormorant Garamond', serif;
  font-size: 1.5rem;
  font-weight: 500;
  color: var(--text-primary);
  margin-bottom: 0.75rem;
  line-height: 1.4;
  letter-spacing: 0.02em;
  position: relative;
  z-index: 1;
}

.result-excerpt {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.7;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
  position: relative;
  z-index: 1;
}

.result-meta {
  display: flex;
  gap: 1.25rem;
  margin-top: 1.25rem;
  font-size: 0.8125rem;
  color: var(--text-muted);
  font-weight: 500;
  position: relative;
  z-index: 1;
}

.result-meta span {
  background: var(--bg-secondary);
  padding: 0.375rem 0.875rem;
  border-radius: 12px;
  border: 1px solid var(--border);
}

.result-actions {
  position: absolute;
  top: 1.5rem;
  right: 1.5rem;
  display: flex;
  gap: 0.5rem;
  z-index: 2;
}

.bookmark-btn,
.reading-btn {
  background: var(--bg-secondary);
  border: 2px solid var(--border);
  border-radius: 50%;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 1.125rem;
  transition: var(--transition);
  box-shadow: var(--shadow-sm);
}

.bookmark-btn:hover {
  background: linear-gradient(135deg, var(--accent), var(--accent-hover));
  border-color: var(--accent);
  transform: scale(1.15) rotate(12deg);
  box-shadow: 0 6px 20px rgba(196, 168, 124, 0.4);
}

.reading-btn:hover {
  background: linear-gradient(135deg, #66bb6a, #4caf50);
  border-color: #66bb6a;
  transform: scale(1.15);
  box-shadow: 0 6px 20px rgba(102, 187, 106, 0.4);
}

.bookmark-btn:active,
.reading-btn:active {
  transform: scale(1.05);
}

.loading {
  display: none;
  justify-content: center;
  align-items: center;
  padding: 4rem;
}

.loading.active {
  display: flex;
}

.loader {
  width: 48px;
  height: 48px;
  border: 3px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 1s cubic-bezier(0.68, -0.55, 0.265, 1.55) infinite;
  box-shadow: 0 4px 12px rgba(196, 168, 124, 0.2);
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}