/* ===== Miami University (OH) Alumni Business Directory ===== */
/* Color scheme: Miami Red #C41E3A, White, Cream background */

:root {
  --miami-red: #C41E3A;
  --miami-red-dark: #9E182E;
  --miami-red-light: #E84C65;
  --white: #FFFFFF;
  --cream: #F8F5F0;
  --light-gray: #EAE7E0;
  --medium-gray: #8A8580;
  --dark-gray: #3A3530;
  --text: #2A2520;
  --shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
  --shadow-hover: 0 6px 24px rgba(196, 30, 58, 0.12);
  --radius: 12px;
  --max-width: 1280px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background-color: var(--cream);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
}

/* ===== Header ===== */
.site-header {
  background: linear-gradient(135deg, var(--miami-red) 0%, var(--miami-red-dark) 100%);
  color: var(--white);
  padding: 3rem 1.5rem 2.5rem;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.site-header::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle at 30% 50%, rgba(255,255,255,0.05) 0%, transparent 50%);
  pointer-events: none;
}

.site-header h1 {
  font-size: 2.25rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 0.5rem;
  position: relative;
}

.site-header .subtitle {
  font-size: 1.1rem;
  opacity: 0.9;
  font-weight: 400;
  position: relative;
}

.site-header .miami-badge {
  display: inline-block;
  margin-top: 1rem;
  padding: 0.35rem 1.25rem;
  border: 2px solid rgba(255,255,255,0.35);
  border-radius: 100px;
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  position: relative;
}

/* ===== Navigation / Filters ===== */
.filter-bar {
  background: var(--white);
  border-bottom: 1px solid var(--light-gray);
  padding: 1rem 1.5rem;
  position: sticky;
  top: 0;
  z-index: 100;
}

.filter-bar-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.filter-bar .stats {
  font-size: 0.9rem;
  color: var(--medium-gray);
  font-weight: 500;
}

.filter-bar .stats strong {
  color: var(--miami-red);
}

.filter-bar .search-wrapper {
  flex: 1;
  max-width: 400px;
  min-width: 200px;
}

.filter-bar input[type="text"] {
  width: 100%;
  padding: 0.6rem 1rem 0.6rem 2.5rem;
  border: 2px solid var(--light-gray);
  border-radius: 8px;
  font-size: 0.9rem;
  font-family: inherit;
  background: var(--cream) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%238A8580' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Ccircle cx='11' cy='11' r='8'/%3E%3Cline x1='21' y1='21' x2='16.65' y2='16.65'/%3E%3C/svg%3E") 0.8rem center no-repeat;
  transition: border-color 0.2s;
}

.filter-bar input[type="text"]:focus {
  outline: none;
  border-color: var(--miami-red);
  background-color: var(--white);
}

.filter-bar .industry-filters {
  display: flex;
  gap: 0.4rem;
  flex-wrap: wrap;
}

.filter-bar .industry-btn {
  padding: 0.4rem 0.8rem;
  border: 1.5px solid var(--light-gray);
  border-radius: 6px;
  background: var(--white);
  font-size: 0.78rem;
  font-family: inherit;
  font-weight: 500;
  color: var(--medium-gray);
  cursor: pointer;
  transition: all 0.15s;
}

.filter-bar .industry-btn:hover {
  border-color: var(--miami-red-light);
  color: var(--miami-red);
}

.filter-bar .industry-btn.active {
  background: var(--miami-red);
  border-color: var(--miami-red);
  color: var(--white);
}

/* ===== Main Content ===== */
main {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 2rem 1.5rem 4rem;
}

.directory-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(360px, 1fr));
  gap: 1.5rem;
}

/* ===== Business Card ===== */
.business-card {
  background: var(--white);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.business-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-hover);
}

.card-accent {
  height: 4px;
  background: linear-gradient(90deg, var(--miami-red), var(--miami-red-light));
}

.card-body {
  padding: 1.5rem;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.card-company {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--dark-gray);
  margin-bottom: 0.3rem;
  line-height: 1.3;
}

.card-alumni {
  font-size: 0.9rem;
  color: var(--miami-red);
  font-weight: 600;
  margin-bottom: 0.75rem;
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.card-alumni::before {
  content: '🎓';
  font-size: 0.85rem;
}

.card-tags {
  display: flex;
  gap: 0.4rem;
  margin-bottom: 0.75rem;
  flex-wrap: wrap;
}

.card-tag {
  display: inline-block;
  padding: 0.2rem 0.6rem;
  border-radius: 4px;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.card-tag.industry {
  background: #FFF0F2;
  color: var(--miami-red);
}

.card-tag.location {
  background: #EDE9E2;
  color: #6B655E;
}

.card-description {
  font-size: 0.9rem;
  color: #5A5550;
  line-height: 1.55;
  margin-bottom: 1rem;
  flex: 1;
}

.card-contact {
  border-top: 1px solid var(--light-gray);
  padding-top: 0.85rem;
  margin-top: auto;
}

.card-contact .contact-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.85rem;
  color: var(--medium-gray);
  margin-bottom: 0.3rem;
}

.card-contact .contact-item:last-child {
  margin-bottom: 0;
}

.card-contact a {
  color: var(--miami-red);
  text-decoration: none;
  font-weight: 500;
  transition: color 0.15s;
}

.card-contact a:hover {
  color: var(--miami-red-dark);
  text-decoration: underline;
}

/* ===== Empty State ===== */
.no-results {
  grid-column: 1 / -1;
  text-align: center;
  padding: 3rem;
  color: var(--medium-gray);
}

.no-results h3 {
  font-size: 1.2rem;
  margin-bottom: 0.5rem;
  color: var(--dark-gray);
}

/* ===== Footer ===== */
.site-footer {
  background: var(--dark-gray);
  color: rgba(255,255,255,0.7);
  text-align: center;
  padding: 2rem 1.5rem;
  font-size: 0.85rem;
  line-height: 1.8;
}

.site-footer a {
  color: var(--miami-red-light);
  text-decoration: none;
}

.site-footer a:hover {
  text-decoration: underline;
}

.site-footer .footer-love {
  margin-top: 0.5rem;
  font-size: 0.8rem;
  opacity: 0.6;
}

/* ===== Responsive ===== */
@media (max-width: 768px) {
  .site-header h1 {
    font-size: 1.6rem;
  }
  .site-header {
    padding: 2rem 1rem 1.75rem;
  }
  .directory-grid {
    grid-template-columns: 1fr;
    gap: 1rem;
  }
  .filter-bar-inner {
    flex-direction: column;
    align-items: stretch;
  }
  .filter-bar .search-wrapper {
    max-width: none;
  }
  .filter-bar .industry-filters {
    justify-content: center;
  }
  main {
    padding: 1rem 1rem 3rem;
  }
}

@media (min-width: 769px) and (max-width: 1024px) {
  .directory-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* Print styles */
@media print {
  .filter-bar { display: none; }
  .business-card { break-inside: avoid; box-shadow: none; border: 1px solid #ccc; }
  .site-header { break-after: avoid; padding: 1rem; }
}

/* ===== Industry Filter Toggle (Mobile) ===== */
.filter-toggle {
  display: none;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 0.8rem;
  border: 1.5px solid var(--light-gray);
  border-radius: 6px;
  background: var(--white);
  font-size: 0.85rem;
  font-family: inherit;
  font-weight: 600;
  color: var(--dark-gray);
  cursor: pointer;
  transition: all 0.15s;
  width: 100%;
  justify-content: space-between;
}

.filter-toggle:hover {
  border-color: var(--miami-red-light);
}

.filter-toggle-badge {
  background: var(--miami-red);
  color: var(--white);
  font-size: 0.7rem;
  padding: 0.15rem 0.5rem;
  border-radius: 100px;
  font-weight: 600;
}

.filter-toggle-arrow {
  transition: transform 0.2s;
  color: var(--medium-gray);
}

.filter-toggle[aria-expanded="true"] .filter-toggle-arrow {
  transform: rotate(180deg);
}

/* Only show toggle and hide filters behind it on mobile */
@media (max-width: 768px) {
  .filter-toggle {
    display: flex;
  }
  .industry-filters {
    display: flex !important;
    max-height: 500px;
    overflow: hidden;
    transition: max-height 0.25s ease, opacity 0.2s ease, margin 0.2s ease;
    opacity: 1;
    margin-top: 0.5rem;
  }
  .industry-filters.collapsed {
    max-height: 0 !important;
    opacity: 0;
    margin-top: 0;
    padding-top: 0;
    padding-bottom: 0;
    overflow: hidden;
  }
}