@font-face {
  font-family: 'Sunflower';
  src: url("Sunflower-Light.ttf") format('truetype');
  font-weight: 300;
  font-style: normal;
}

@font-face {
  font-family: 'Sunflower';
  src: url("Sunflower-Medium.ttf") format('truetype');
  font-weight: 500;
  font-style: normal;
}

@font-face {
  font-family: 'Sunflower';
  src: url("Sunflower-Bold.ttf") format('truetype');
  font-weight: 700;
  font-style: normal;
}

@font-face {
  font-family: 'Noto Sans KR';
  src: url("NotoSansKR-VariableFont_wght.ttf") format('truetype');
  font-optical-sizing: auto;
  font-weight: 100 900;
  font-style: normal;
}

:root {
  --seed: #11418D;
  --md-ref-typeface-brand: "Noto Sans KR", "Sunflower", "Roboto", sans-serif;
  --md-ref-typeface-plain: "Noto Sans KR", "Sunflower", "Roboto", sans-serif;
}

html {
  font-size: 125%;
}

body {
  font-family: var(--md-ref-typeface-plain);
  color: var(--md-sys-color-on-background);
  background-color: var(--md-sys-color-background);
  transition: background-color 0.3s ease, color 0.3s ease;
}

button,
input,
select,
textarea {
    font: inherit;
}

/* Navigation Bar */
.navbar {
  background-color: var(--md-sys-color-surface);
  border-bottom: 1px solid var(--md-sys-color-outline-variant);
  box-shadow: var(--md-sys-elevation-level1);
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 64px;
}

.nav-brand {
  display: flex;
  align-items: center;
}

.nav-logo {
  text-decoration: none;
  color: var(--md-sys-color-on-surface);
  font-weight: 600;
  font-size: 1.1rem;
  transition: color 0.3s ease;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.nav-logo:hover {
  color: var(--md-sys-color-primary);
}

.logo-image {
  height: 40px;
  width: auto;
  object-fit: contain;
  max-width: 120px;
}

.logo-text {
  font-family: var(--md-ref-typeface-brand);
}

.nav-menu {
  display: flex;
  align-items: center;
}

.nav-list {
  display: flex;
  list-style: none;
  margin: 0;
  padding: 0;
  gap: 0.5rem;
}

.nav-item {
  position: relative;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  padding: 0.75rem 1rem;
  text-decoration: none;
  color: var(--md-sys-color-on-surface);
  border-radius: 8px;
  transition: all 0.3s ease;
  font-size: 0.9rem;
  font-weight: 500;
}

.nav-link:hover {
  background-color: var(--md-sys-color-surface-container);
  color: var(--md-sys-color-primary);
}

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

.nav-text {
  display: none;
}

/* Theme Selector */
.theme-selector {
  position: relative;
}

.theme-toggle {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1rem;
  background: none;
  border: none;
  color: var(--md-sys-color-on-surface);
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.3s ease;
  font-size: 0.9rem;
  font-weight: 500;
  font-family: inherit;
}

.theme-toggle:hover {
  background-color: var(--md-sys-color-surface-container);
  color: var(--md-sys-color-primary);
}

.theme-menu {
  position: absolute;
  top: 100%;
  right: 0;
  background-color: var(--md-sys-color-surface);
  border: 1px solid var(--md-sys-color-outline-variant);
  border-radius: 8px;
  box-shadow: var(--md-sys-elevation-level3);
  padding: 0.5rem;
  margin-top: 0.5rem;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: all 0.3s ease;
  z-index: 1001;
}

.theme-menu.show {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

#theme-select {
  background-color: var(--md-sys-color-surface);
  color: var(--md-sys-color-on-surface);
  border: 1px solid var(--md-sys-color-outline);
  border-radius: 6px;
  padding: 0.5rem;
  font-size: 0.9rem;
  font-family: inherit;
  cursor: pointer;
  min-width: 120px;
}

#theme-select:focus {
  outline: none;
  border-color: var(--md-sys-color-primary);
  box-shadow: 0 0 0 2px var(--md-sys-color-primary-container);
}

/* Responsive Design */
@media (min-width: 1068px) {
  .nav-text {
    display: inline;
  }
  
  .nav-list {
    gap: 0.5rem;
  }
  
  .nav-link { 
    padding: 0.75rem 1.25rem;
  }
  
  .theme-toggle {
    padding: 0.75rem 1.25rem;
  }
}

@media (max-width: 1067px) {
  .nav-container {
    padding: 0 0.5rem;
  }
  
  .nav-list {
    gap: 0.125rem;
  }
  
  .nav-link {
    padding: 0.75rem;
  }
  
  .theme-toggle {
    padding: 0.75rem;
  }
  
  .logo-text {
    font-size: 1rem;
  }
}

.footer {
  background: var(--md-sys-color-surface-container-highest);
  color: var(--md-sys-color-on-surface);
  padding: 1rem;
  margin-top: 1rem;
}

.footer-content {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  gap: 2rem;
  justify-content: space-between;
}

.footer-section {
  flex: 1;
  min-width: 250px;
}

.footer-section h3 {
  color: var(--md-sys-color-primary);
  /* font-size: 1.2rem; */
  font-size: 0.75rem;
}

.footer-section p {
  /* margin: 0.5rem 0; */
  margin: 0.25rem 0;
  /* line-height: 1.6; */
  /* font-size: 0.9rem; */
  font-size: 0.75rem;
  color: var(--md-sys-color-on-surface-variant);
}

.footer-section a {
  color: var(--md-sys-color-primary);
  text-decoration: none;
}

.footer-section a:hover {
  color: var(--md-sys-color-primary-container);
}

.footer-bottom {
  border-top: 1px solid var(--md-sys-color-outline-variant);
  margin-top: 2rem;
  padding-top: 1rem;
  text-align: center;
  color: var(--md-sys-color-on-surface-variant);
  /* font-size: 0.8rem; */
  font-size: 0.5rem;
}

.company-info {
  /* background: var(--md-sys-color-primary-container); */
  color: var(--md-sys-color-on-primary-container);
  padding: 1rem;
  border-radius: 8px;
  /* border-left: 4px solid var(--md-sys-color-primary); */
  border: 1px solid var(--md-sys-color-outline-variant);
}

.organizer-info {
  /* background: var(--md-sys-color-secondary-container); */
  color: var(--md-sys-color-on-secondary-container);
  padding: 1rem;
  border-radius: 8px;
  /* border-left: 4px solid var(--md-sys-color-secondary); */
  border: 1px solid var(--md-sys-color-outline-variant);
  line-height: 2.25;
}

.contact-info {
  /* background: var(--md-sys-color-tertiary-container); */
  color: var(--md-sys-color-on-tertiary-container);
  padding: 1rem;
  border-radius: 8px;
  /* border-left: 4px solid var(--md-sys-color-tertiary); */
  border: 1px solid var(--md-sys-color-outline-variant);
}

@media (max-width: 768px) {
  .footer-content {
    flex-direction: column;
    gap: 1.5rem;
  }
  
  .footer-section {
    min-width: auto;
  }
  
  .footer {
    padding: 2rem 1rem 1rem;
  }
}