/* ============================================
   Pažinimo Keliu - Global Styles
   ============================================ */

/* CSS Custom Properties */
:root {
  --color-bg: #ffffff;
  --color-text: #1a1a1a;
  --color-text-light: #4a4a4a;
  --color-border: #e5e5e5;
  --color-accent: #2c2c2c;
  --color-link: #1a1a1a;
  --color-link-hover: #555555;
  
  --font-heading: 'Cormorant Garamond', Georgia, serif;
  --font-body: 'Source Sans 3', -apple-system, BlinkMacSystemFont, sans-serif;
  
  --container-width: 900px;
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 2rem;
  --spacing-lg: 3rem;
  --spacing-xl: 5rem;
}

/* Reset & Base */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  font-size: 1.0625rem;
  line-height: 1.7;
  color: var(--color-text);
  background-color: var(--color-bg);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Typography */
h1, h2, h3, h4 {
  font-family: var(--font-heading);
  font-weight: 500;
  line-height: 1.3;
  color: var(--color-text);
}

h1 {
  font-size: 2.5rem;
  margin-bottom: var(--spacing-md);
  letter-spacing: 0.02em;
}

h2 {
  font-size: 1.75rem;
  margin-top: var(--spacing-lg);
  margin-bottom: var(--spacing-sm);
  padding-bottom: var(--spacing-xs);
  border-bottom: 1px solid var(--color-border);
}

h3 {
  font-size: 1.35rem;
  margin-top: var(--spacing-md);
  margin-bottom: var(--spacing-sm);
}

p {
  margin-bottom: var(--spacing-sm);
}

a {
  color: var(--color-link);
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: color 0.2s ease;
}

a:hover {
  color: var(--color-link-hover);
}

ul, ol {
  margin-left: var(--spacing-md);
  margin-bottom: var(--spacing-sm);
}

li {
  margin-bottom: var(--spacing-xs);
}

blockquote {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-style: italic;
  color: var(--color-text-light);
  border-left: 3px solid var(--color-border);
  padding-left: var(--spacing-md);
  margin: var(--spacing-md) 0;
}

blockquote cite {
  display: block;
  font-size: 1rem;
  font-style: normal;
  margin-top: var(--spacing-sm);
  color: var(--color-text);
}

/* Layout */
.container {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

main {
  flex: 1;
  padding: var(--spacing-lg) 0;
}

/* ============================================
   Header
   ============================================ */
.site-header {
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: var(--color-bg);
}

.contact-bar {
  background-color: var(--color-accent);
  color: #ffffff;
  font-size: 0.875rem;
  padding: var(--spacing-xs) 0;
}

.contact-bar .container {
  display: flex;
  justify-content: flex-end;
  gap: var(--spacing-md);
  flex-wrap: wrap;
}

.contact-bar a {
  color: #ffffff;
  text-decoration: none;
}

.contact-bar a:hover {
  text-decoration: underline;
}

.contact-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
}

.social-icon {
  height: 18px;
  width: auto;
  display: block;
  filter: brightness(0) invert(1);
  transition: opacity 0.2s ease;
}

.social-icon:hover {
  opacity: 0.8;
}

.header-main {
  padding: var(--spacing-md) 0;
}

.header-main .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
}

.site-logo {
  display: flex;
  align-items: center;
  text-decoration: none;
}

.site-logo img {
  height: 50px;
  width: auto;
}

.site-logo-text {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 500;
  color: var(--color-text);
  letter-spacing: 0.05em;
}

/* Navigation */
.site-nav {
  display: flex;
  align-items: center;
}

.nav-list {
  display: flex;
  list-style: none;
  margin: 0;
  gap: var(--spacing-md);
}

.nav-list li {
  margin: 0;
}

.nav-list a {
  font-family: var(--font-body);
  font-size: 0.9375rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text);
  text-decoration: none;
  padding: var(--spacing-xs) 0;
  position: relative;
}

.nav-list a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--color-text);
  transition: width 0.3s ease;
}

.nav-list a:hover::after,
.nav-list a.active::after {
  width: 100%;
}

/* Mobile Navigation Toggle */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--spacing-xs);
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--color-text);
  margin: 5px 0;
  transition: transform 0.3s ease;
}

/* ============================================
   Footer
   ============================================ */
.site-footer {
  border-top: 1px solid var(--color-border);
  padding: var(--spacing-md) 0;
  text-align: center;
  font-size: 0.875rem;
  color: var(--color-text-light);
}

/* ============================================
   Page-Specific Styles
   ============================================ */

/* Home Page Hero */
.hero {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-lg);
  align-items: center;
  margin-bottom: var(--spacing-lg);
}

.hero-content {
  order: 1;
}

.hero-image {
  order: 2;
}

.hero-image img {
  width: 100%;
  max-width: 350px;
  height: auto;
  display: block;
  margin-left: auto;
}

.hero-intro {
  font-size: 1.125rem;
  line-height: 1.8;
  margin-bottom: var(--spacing-md);
}

.hero-intro .lead {
  font-family: var(--font-heading);
  font-size: 1.35rem;
  font-weight: 500;
  display: block;
  margin-bottom: var(--spacing-sm);
}

.read-more {
  font-weight: 600;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
}

.read-more::after {
  content: '→';
  transition: transform 0.2s ease;
}

.read-more:hover::after {
  transform: translateX(4px);
}

/* Testimonials */
.testimonial {
  margin-bottom: var(--spacing-lg);
  padding-bottom: var(--spacing-md);
  border-bottom: 1px solid var(--color-border);
}

.testimonial:last-child {
  border-bottom: none;
}

.testimonial-text {
  font-size: 1.0625rem;
  line-height: 1.8;
  margin-bottom: var(--spacing-sm);
}

.testimonial-author {
  font-weight: 600;
  color: var(--color-text);
}

/* FAQ */
.faq-item {
  margin-bottom: var(--spacing-md);
  padding-bottom: var(--spacing-md);
  border-bottom: 1px solid var(--color-border);
}

.faq-item:last-child {
  border-bottom: none;
}

.faq-question {
  font-family: var(--font-heading);
  font-size: 1.2rem;
  font-weight: 600;
  margin-bottom: var(--spacing-xs);
  color: var(--color-text);
}

.faq-answer {
  color: var(--color-text-light);
}

/* Seminars Tabs */
.tabs {
  margin-top: var(--spacing-md);
}

.tab-list {
  display: flex;
  list-style: none;
  margin: 0;
  padding: 0;
  border-bottom: 2px solid var(--color-border);
  gap: var(--spacing-xs);
  flex-wrap: wrap;
}

.tab-list li {
  margin: 0;
}

.tab-btn {
  font-family: var(--font-body);
  font-size: 0.9375rem;
  font-weight: 600;
  background: none;
  border: none;
  padding: var(--spacing-sm) var(--spacing-md);
  cursor: pointer;
  color: var(--color-text-light);
  position: relative;
  transition: color 0.2s ease;
}

.tab-btn:hover {
  color: var(--color-text);
}

.tab-btn::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 100%;
  height: 2px;
  background-color: var(--color-text);
  transform: scaleX(0);
  transition: transform 0.3s ease;
}

.tab-btn.active {
  color: var(--color-text);
}

.tab-btn.active::after {
  transform: scaleX(1);
}

.tab-panel {
  display: none;
  padding-top: var(--spacing-lg);
  animation: fadeIn 0.3s ease;
}

.tab-panel.active {
  display: block;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Seminars */
.seminar {
  margin-bottom: var(--spacing-xl);
  padding-bottom: var(--spacing-lg);
  border-bottom: 1px solid var(--color-border);
}

.seminar:last-child {
  border-bottom: none;
  margin-bottom: 0;
  padding-bottom: 0;
}

.seminar-title {
  font-family: var(--font-heading);
  font-size: 1.75rem;
  margin-bottom: var(--spacing-xs);
  margin-top: 0;
  border-bottom: none;
  padding-bottom: 0;
}

.seminar-subtitle {
  font-size: 0.9375rem;
  color: var(--color-text-light);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--spacing-md);
}

.seminar-description {
  margin-bottom: var(--spacing-md);
}

.seminar-details {
  background-color: #fafafa;
  padding: var(--spacing-md);
  margin-top: var(--spacing-md);
}

.seminar-details h4 {
  font-size: 1rem;
  margin-bottom: var(--spacing-sm);
}

/* Timeline (About page) */
.timeline {
  margin: var(--spacing-md) 0;
}

.timeline-item {
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-sm);
  padding-bottom: var(--spacing-sm);
  border-bottom: 1px solid var(--color-border);
}

.timeline-item:last-child {
  border-bottom: none;
}

.timeline-year {
  font-family: var(--font-heading);
  font-weight: 600;
  color: var(--color-text);
}

.timeline-description {
  color: var(--color-text-light);
}

/* Links section */
.links-section {
  margin-top: var(--spacing-lg);
}

.links-section ul {
  list-style: none;
  margin-left: 0;
}

.links-section li {
  margin-bottom: var(--spacing-sm);
}

/* Contact Info Box */
.contact-box {
  background-color: #fafafa;
  padding: var(--spacing-md);
  margin-top: var(--spacing-md);
}

.contact-box p {
  margin-bottom: var(--spacing-xs);
}

/* ============================================
   Responsive Design
   ============================================ */
@media (max-width: 768px) {
  :root {
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
  }
  
  h1 {
    font-size: 2rem;
  }
  
  h2 {
    font-size: 1.5rem;
  }
  
  .header-main .container {
    flex-direction: column;
    text-align: center;
  }
  
  .nav-toggle {
    display: block;
    position: absolute;
    right: var(--spacing-md);
    top: 50%;
    transform: translateY(-50%);
  }
  
  .header-main {
    position: relative;
  }
  
  .site-nav {
    width: 100%;
    display: none;
  }
  
  .site-nav.active {
    display: block;
  }
  
  .nav-list {
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
    padding-top: var(--spacing-sm);
  }
  
  .hero {
    grid-template-columns: 1fr;
  }
  
  .hero-content {
    order: 2;
  }
  
  .hero-image {
    order: 1;
  }
  
  .hero-image img {
    margin: 0 auto;
  }
  
  .contact-bar .container {
    justify-content: center;
    font-size: 0.8125rem;
  }
  
  .timeline-item {
    grid-template-columns: 1fr;
    gap: var(--spacing-xs);
  }
}

@media (max-width: 480px) {
  html {
    font-size: 15px;
  }
  
  .contact-bar .container {
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-xs);
  }
  
  .tab-list {
    flex-direction: column;
    border-bottom: none;
  }
  
  .tab-btn {
    width: 100%;
    text-align: left;
    border-bottom: 1px solid var(--color-border);
  }
  
  .tab-btn::after {
    display: none;
  }
  
  .tab-btn.active {
    background-color: #fafafa;
  }
}