:root {
  --border: 214 32% 91%;
  --input: 214 32% 91%;
  --ring: 222 47% 11%;
  --background: 0 0% 100%;
  --foreground: 222 47% 11%;
  --primary: 222 47% 11%;
  --primary-foreground: 210 40% 98%;
  --secondary: 210 40% 96%;
  --secondary-foreground: 222 47% 11%;
  --muted: 210 40% 96%;
  --muted-foreground: 215 16% 47%;
  --accent: 210 40% 96%;
  --accent-foreground: 222 47% 11%;
  --card: 0 0% 100%;
  --card-foreground: 222 47% 11%;
  --radius: 0.5rem;
}

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

body {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  background-color: hsl(var(--background));
  color: hsl(var(--foreground));
  line-height: 1.5;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 1rem;
}

/* Header */
.header {
  border-bottom: 1px solid hsl(var(--border));
  background-color: hsl(var(--card));
}

.header-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 0;
}

.logo-section {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.logo-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  background-color: hsl(var(--primary));
  color: hsl(var(--primary-foreground));
  border-radius: var(--radius);
}

.logo-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: hsl(var(--foreground));
}

.logo-subtitle {
  font-size: 0.75rem;
  color: hsl(var(--muted-foreground));
}

.nav {
  display: none;
  gap: 1.5rem;
}

.nav-link {
  font-size: 0.875rem;
  font-weight: 500;
  text-decoration: none;
  color: hsl(var(--muted-foreground));
  transition: color 0.2s;
}

.nav-link:hover {
  color: hsl(var(--foreground));
}

.nav-link-active {
  color: hsl(var(--foreground));
}

@media (min-width: 768px) {
  .nav {
    display: flex;
  }
}

/* Main */
.main {
  flex: 1;
  padding: 3rem 0;
}

/* Hero */
.hero {
  text-align: center;
  margin-bottom: 3rem;
}

.hero-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background-color: hsl(var(--primary) / 0.1);
  color: hsl(var(--primary));
  border-radius: 9999px;
  padding: 0.75rem;
  margin-bottom: 1rem;
}

.hero-title {
  font-size: 2.25rem;
  font-weight: 500;
  margin-bottom: 1rem;
}

.hero-description {
  font-size: 1.125rem;
  color: hsl(var(--muted-foreground));
  max-width: 42rem;
  margin: 0 auto;
}

/* Controls */
.controls {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-bottom: 2rem;
}

@media (min-width: 640px) {
  .controls {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }
}

.category-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.category-btn {
  padding: 0.5rem 1rem;
  font-size: 0.875rem;
  font-weight: 500;
  border: none;
  border-radius: var(--radius);
  cursor: pointer;
  transition: all 0.2s;
  background-color: hsl(var(--muted));
  color: hsl(var(--muted-foreground));
}

.category-btn:hover {
  background-color: hsl(var(--muted) / 0.8);
}

.category-btn.active {
  background-color: hsl(var(--primary));
  color: hsl(var(--primary-foreground));
}

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

@media (min-width: 640px) {
  .search-box {
    width: 20rem;
  }
}

.search-icon {
  position: absolute;
  left: 0.75rem;
  top: 50%;
  transform: translateY(-50%);
  color: hsl(var(--muted-foreground));
}

.search-input {
  width: 100%;
  padding: 0.5rem 0.5rem 0.5rem 2.5rem;
  border: 1px solid hsl(var(--border));
  border-radius: var(--radius);
  background-color: hsl(var(--card));
  color: hsl(var(--foreground));
  font-size: 0.875rem;
}

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

.search-input:focus {
  outline: none;
  border-color: hsl(var(--primary));
  box-shadow: 0 0 0 2px hsl(var(--primary) / 0.2);
}

/* Documents Grid */
.documents-grid {
  display: grid;
  gap: 1.5rem;
  margin-bottom: 4rem;
}

@media (min-width: 640px) {
  .documents-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .documents-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.document-card {
  border: 1px solid hsl(var(--border));
  border-radius: var(--radius);
  background-color: hsl(var(--card));
  padding: 1.5rem;
  transition: all 0.2s;
}

.document-card:hover {
  border-color: hsl(var(--primary) / 0.5);
  box-shadow: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
}

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

.document-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 3rem;
  height: 3rem;
  background-color: hsl(var(--primary) / 0.1);
  color: hsl(var(--primary));
  border-radius: var(--radius);
}

.file-type-badge {
  padding: 0.25rem 0.75rem;
  font-size: 0.75rem;
  font-weight: 500;
  border-radius: 9999px;
}

.file-type-pdf {
  background-color: rgb(254 226 226);
  color: rgb(185 28 28);
}

.file-type-xlsx {
  background-color: rgb(220 252 231);
  color: rgb(21 128 61);
}

.file-type-zip {
  background-color: rgb(219 234 254);
  color: rgb(29 78 216);
}

.file-type-docx {
  background-color: rgb(224 231 255);
  color: rgb(67 56 202);
}

.document-title {
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: hsl(var(--card-foreground));
}

.document-description {
  font-size: 0.875rem;
  color: hsl(var(--muted-foreground));
  margin-bottom: 1rem;
}

.document-meta {
  display: flex;
  align-items: center;
  gap: 1rem;
  font-size: 0.75rem;
  color: hsl(var(--muted-foreground));
  margin-bottom: 1rem;
}

.meta-item {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.meta-icon {
  width: 1rem;
  height: 1rem;
}

.document-category {
  display: inline-flex;
  align-items: center;
  padding: 0.25rem 0.5rem;
  font-size: 0.75rem;
  font-weight: 500;
  background-color: hsl(var(--secondary));
  color: hsl(var(--secondary-foreground));
  border-radius: calc(var(--radius) - 2px);
  margin-bottom: 1rem;
}

.download-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  width: 100%;
  padding: 0.625rem 1rem;
  font-weight: 500;
  background-color: hsl(var(--primary));
  color: hsl(var(--primary-foreground));
  border: none;
  border-radius: var(--radius);
  cursor: pointer;
  transition: opacity 0.2s;
}

.download-btn:hover {
  opacity: 0.9;
}

.download-icon {
  width: 1rem;
  height: 1rem;
}

/* Empty State */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 4rem 0;
  color: hsl(var(--muted-foreground));
}

.empty-state svg {
  margin-bottom: 1rem;
}

.empty-state p {
  font-size: 1.125rem;
}

/* Contact Card */
.contact-card {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 1.5rem;
  border: 1px solid hsl(var(--border));
  border-radius: var(--radius);
  background-color: hsl(var(--card));
  padding: 2rem;
}

@media (min-width: 640px) {
  .contact-card {
    flex-direction: row;
    align-items: center;
  }
}

.contact-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 3rem;
  height: 3rem;
  background-color: hsl(var(--primary) / 0.1);
  color: hsl(var(--primary));
  border-radius: var(--radius);
  flex-shrink: 0;
}

.contact-content {
  flex: 1;
}

.contact-title {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: hsl(var(--card-foreground));
}

.contact-description {
  color: hsl(var(--muted-foreground));
}

.contact-button {
  padding: 0.75rem 1.5rem;
  font-weight: 500;
  background-color: hsl(var(--primary));
  color: hsl(var(--primary-foreground));
  border: none;
  border-radius: var(--radius);
  cursor: pointer;
  transition: opacity 0.2s;
  white-space: nowrap;
}

.contact-button:hover {
  opacity: 0.9;
}