/* ==========================================================================
   Swarm Community Calls — 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: 24px;
}

.hero-subtitle {
  font-size: 1.125rem;
  color: var(--color-text-secondary);
  max-width: 640px;
  margin: 0 auto;
  line-height: 1.6;
}

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

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

/* ==========================================================================
   Upcoming Call — Featured Banner
   ========================================================================== */

.calls-upcoming {
  padding: 0 0 48px;
}

.call-featured {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-left: 3px solid var(--color-orange);
  border-radius: var(--radius);
  padding: 28px 32px;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

@media (min-width: 768px) {
  .call-featured {
    flex-direction: row;
    align-items: flex-start;
    justify-content: space-between;
    gap: 40px;
  }

  .call-featured-body {
    flex: 0 0 60%;
  }

  .call-featured-actions {
    flex: 0 0 36%;
    align-self: flex-start;
  }
}

.call-featured-badge {
  display: inline-block;
  background: var(--color-orange);
  color: #000;
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  padding: 3px 10px;
  border-radius: 4px;
  margin-bottom: 12px;
}

.call-featured-date {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  margin-bottom: 6px;
}

.call-featured-title {
  font-size: 1.375rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  margin-bottom: 8px;
}

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

.call-featured-subtitle {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--color-orange);
  max-width: 520px;
}

.call-featured-agenda {
  list-style: none;
  margin-top: 10px;
  display: flex;
  flex-direction: column;
  gap: 5px;
  max-width: 520px;
}

.call-featured-agenda li {
  padding-left: 14px;
  position: relative;
  font-size: 0.9375rem;
  color: var(--color-text-secondary);
  line-height: 1.5;
}

.call-featured-countdown-wrap {
  margin-top: 20px;
}

.countdown-starts-in {
  font-size: 0.75rem;
  color: var(--color-text-secondary);
  margin-bottom: 6px;
}

.call-featured-countdown {
  display: flex;
  align-items: center;
  gap: 16px;
}

.countdown-block {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
}

.countdown-number {
  font-size: 2rem;
  font-weight: 700;
  color: var(--color-text);
  line-height: 1;
  font-variant-numeric: tabular-nums;
}

.countdown-label {
  font-size: 0.65rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-text-secondary);
}

.countdown-divider {
  width: 1px;
  height: 32px;
  background: var(--color-border);
  flex-shrink: 0;
}

.countdown-live {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-orange);
}

.call-featured-agenda li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 9px;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--color-orange);
}

.call-featured-actions {
  display: flex;
  flex-direction: column;
  gap: 12px;
  flex-shrink: 0;
}

/* TODO: replace assets/0226.png with the final call visual when available */
.call-featured-img-wrap {
  overflow: hidden;
  border-radius: 8px;
  width: 100%;
}

.call-featured-img {
  width: 100%;
  display: block;
  border-radius: 8px;
}

.call-featured-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--color-orange);
  color: #000 !important;
  font-size: 0.875rem;
  font-weight: 700;
  padding: 12px 24px;
  border-radius: 8px;
  white-space: nowrap;
  transition: background 0.2s, opacity 0.2s;
}

.call-featured-cta:hover {
  background: var(--color-orange-hover);
  opacity: 1;
}

.call-featured-secondary {
  font-size: 0.8125rem;
  color: var(--color-orange) !important;
  text-align: center;
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: opacity 0.2s;
}

.call-featured-secondary:hover {
  opacity: 0.75;
}

/* Calendar picker */
.cal-picker {
  position: relative;
  text-align: center;
}

.cal-picker-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  background: transparent;
  border: 1px solid var(--color-orange);
  border-radius: 8px;
  padding: 12px 24px;
  font-family: var(--font-family);
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--color-orange) !important;
  text-decoration: none !important;
  text-underline-offset: unset;
  cursor: pointer;
  white-space: nowrap;
  transition: background 0.2s, opacity 0.2s;
}

.cal-picker-btn:hover {
  background: rgba(255, 122, 0, 0.08);
  opacity: 1;
}

.cal-picker-dropdown {
  position: absolute;
  top: calc(100% + 6px);
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  overflow: hidden;
  min-width: 180px;
  z-index: 10;
  box-shadow: 0 8px 24px rgba(0,0,0,0.4);
}

.cal-picker-option {
  display: block;
  padding: 10px 16px;
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--color-text) !important;
  text-decoration: none !important;
  transition: background 0.15s;
  white-space: nowrap;
}

.cal-picker-option:hover {
  background: var(--color-bg-card-hover);
  opacity: 1;
}

/* ==========================================================================
   Past Calls Grid
   ========================================================================== */

.calls {
  padding: 0 0 80px;
}

.calls-section-label {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-secondary);
  margin-bottom: 20px;
}

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

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

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

/* ==========================================================================
   Call Card
   ========================================================================== */

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

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

.call-card-content {
  padding: 24px;
  display: flex;
  flex-direction: column;
  height: 100%;
}

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

/* Meta row: episode label + date */
.call-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 10px;
}

.call-episode {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-orange);
}

.call-date {
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--color-text-secondary);
}

.call-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 24px;
  letter-spacing: -0.01em;
  line-height: 1.3;
}

@media (min-width: 768px) {
  .call-title {
    font-size: 1.375rem;
  }
}

/* Video Embed */
.call-video {
  position: relative;
  width: 100%;
  padding-bottom: 56.25%; /* 16:9 */
  background: var(--color-bg);
  border-radius: 8px;
  overflow: hidden;
  margin-bottom: 20px;
}

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

.call-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;
}

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

/* Thumbnail with play overlay (Option B) */
.call-video-thumb {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  display: block;
  overflow: hidden;
}

.call-video-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}

.call-video-thumb:hover img {
  transform: scale(1.04);
}

.call-video-play {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 56px;
  height: 56px;
  background: rgba(0, 0, 0, 0.6);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.2s;
}

.call-video-play svg {
  width: 22px;
  height: 22px;
  color: #fff;
  margin-left: 3px; /* optical centering for play triangle */
}

.call-video-thumb:hover .call-video-play {
  background: var(--color-orange);
}

/* Topics list */
.call-topics {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 20px;
  flex: 1;
}

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

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

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

/* Links */
.call-links {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: auto;
  padding-top: 4px;
}

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

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

.call-link svg {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}

/* ==========================================================================
   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;
}