/* ==========================================================================
   Swarm Online Workshops — styles.css
   Design tokens extracted from ethswarm.org
   ========================================================================== */

/* Fonts */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');

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

/* Variables */
:root {
  --color-bg: #0D1216;
  --color-bg-card: #1F2831;
  --color-bg-card-hover: #252f3a;
  --color-border: #2D3843;
  --color-text: #F6F7F9;
  --color-text-secondary: #8B909A;
  --color-text-muted: rgba(246, 247, 249, 0.5);
  --color-orange: #FF7A00;
  --color-orange-hover: #EB7000;
  --color-green: #1effbb;
  --color-purple: #7049F6;
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --max-width: 1200px;
  --radius: 12px;
}

/* Base */
html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-family);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  min-height: 100vh;
}

a {
  color: var(--color-text);
  text-decoration: none;
  transition: opacity 0.2s;
}

a:hover {
  opacity: 0.75;
}

img {
  max-width: 100%;
  height: auto;
}

/* Layout */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

@media (min-width: 768px) {
  .container {
    padding: 0 56px;
  }
}

/* ==========================================================================
   Header
   ========================================================================== */

.header {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  align-items: center;
  padding: 24px 24px 0;
}

@media (min-width: 768px) {
  .header {
    padding: 32px 56px 0;
  }
}

.header-logo {
  cursor: pointer;
}

.header-logo-img {
  height: 2rem;
  width: auto;
}

@media (max-width: 480px) {
  .header-logo-img {
    height: 1.8rem;
  }
}


/* ==========================================================================
   Hero
   ========================================================================== */

.hero {
  padding: 80px 0 48px;
  text-align: center;
}

.hero-title {
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 12px;
}

.hero-subtitle {
  font-size: 1.125rem;
  color: var(--color-text-secondary);
  max-width: 560px;
  margin: 0 auto;
}

@media (min-width: 768px) {
  .hero-title {
    font-size: 3rem;
  }

  .hero-subtitle {
    font-size: 1.25rem;
  }
}

/* ==========================================================================
   Workshop Cards
   ========================================================================== */

.workshops {
  padding: 0 0 80px;
}

.workshop-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}

@media (min-width: 768px) {
  .workshop-list {
    grid-template-columns: repeat(2, 1fr);
  }
}

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

.workshop-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color 0.2s;
}

.workshop-card:hover {
  border-color: var(--color-orange);
}

.workshop-card-content {
  padding: 24px;
}

@media (min-width: 768px) {
  .workshop-card-content {
    padding: 32px;
  }
}

.workshop-number {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-orange);
  margin-bottom: 8px;
}

.workshop-title {
  font-size: 1.375rem;
  font-weight: 700;
  margin-bottom: 4px;
  letter-spacing: -0.01em;
}

.workshop-subtitle {
  font-size: 0.9375rem;
  color: var(--color-text-secondary);
  margin-bottom: 24px;
}

@media (min-width: 768px) {
  .workshop-title {
    font-size: 1.5rem;
  }
}

/* Video Embed */
.workshop-video {
  position: relative;
  width: 100%;
  padding-bottom: 56.25%; /* 16:9 */
  background: var(--color-bg);
  border-radius: 8px;
  overflow: hidden;
  margin-bottom: 24px;
}

.workshop-video iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: none;
}

.workshop-video-placeholder {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  color: var(--color-text-secondary);
  font-size: 0.875rem;
}

.workshop-video-placeholder svg {
  width: 48px;
  height: 48px;
  opacity: 0.4;
}

/* Description */
.workshop-description {
  font-size: 0.9375rem;
  line-height: 1.7;
  color: rgba(246, 247, 249, 0.8);
  margin-bottom: 20px;
}

.workshop-description p {
  margin-bottom: 12px;
}

.workshop-topics {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.workshop-topics li {
  padding-left: 16px;
  position: relative;
  font-size: 0.875rem;
  line-height: 1.6;
  color: rgba(246, 247, 249, 0.7);
}

.workshop-topics li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 10px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-orange);
}

.workshop-topics li strong {
  color: var(--color-text);
}

/* Links group */
.workshop-links {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

/* Guide Link */
.workshop-guide-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-orange);
  transition: opacity 0.2s;
}

.workshop-guide-link:hover {
  opacity: 0.8;
  color: var(--color-orange);
}

.workshop-guide-link svg {
  width: 16px;
  height: 16px;
  fill: currentColor;
}

/* ==========================================================================
   Footer
   ========================================================================== */

.footer {
  background: linear-gradient(180deg, #1F2831 0%, #000000 100%);
  color: var(--color-text);
  padding: 80px 0 32px;
}

@media (min-width: 768px) {
  .footer {
    padding: 56px 0 24px;
  }
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
  margin-bottom: 48px;
}

@media (min-width: 768px) {
  .footer-grid {
    grid-template-columns: 4fr 2fr 2fr 2fr;
    gap: 20px;
  }
}

.footer-brand p {
  margin-top: 24px;
  font-size: 0.875rem;
  line-height: 1.5;
  color: var(--color-text-secondary);
}

.footer-brand-links {
  list-style: none;
  margin-top: 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-brand-links a {
  font-size: 0.875rem;
  font-weight: 600;
}

.footer-section h3 {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-text-secondary);
  margin-bottom: 16px;
}

.footer-section ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-section ul a {
  font-size: 0.875rem;
  font-weight: 600;
}

.footer-bottom {
  padding-top: 32px;
  border-top: 1px solid var(--color-border);
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  font-size: 10px;
  color: var(--color-text-muted);
}

.footer-bottom a {
  color: var(--color-text-muted);
}

.footer-bottom a:hover {
  text-decoration: underline;
  opacity: 1;
}

/* Logo in footer */
.footer-logo {
  height: 26px;
  width: auto;
}