/* ============================================================
   A BITCOIN CONSULT — Stylesheet
   Sleek & Premium · Horizontal Swipe Feed

   Metaphor:
   - 1 post = 1 transaction (3/day, swipe right to advance)
   - 1 week = 1 block (21 txns per block)
   - Archive = the chain (sealed weekly blocks)
   ============================================================ */

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

:root {
  --bg-deep: #0a0a14;
  --bg-surface: #111122;
  --bg-card: #161628;
  --accent: #F7931A;
  --accent-glow: rgba(247, 147, 26, 0.15);
  --accent-soft: rgba(247, 147, 26, 0.06);
  --accent-border: rgba(247, 147, 26, 0.5);
  --gold: #D4A853;
  --gold-dim: rgba(212, 168, 83, 0.3);
  --text-primary: #e8e8ec;
  --text-secondary: #8888a0;
  --text-muted: #555570;
  --text-faint: #333348;
  --border-subtle: rgba(247, 147, 26, 0.08);
  --border-glow: rgba(247, 147, 26, 0.15);
  --read-border: #2a2a3a;
  --unread-border: var(--accent-border);
  --unread-shadow: 0 0 12px rgba(247, 147, 26, 0.1);
  --green: #4ade80;
  --green-dim: rgba(74, 222, 128, 0.15);
}

html, body {
  font-size: 16px;
  height: 100%;
  overflow: hidden;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen,
    Ubuntu, Cantarell, sans-serif;
  background-color: var(--bg-deep);
  color: var(--text-primary);
  line-height: 1.6;
}

/* --- PARTICLE CANVAS --- */
#particle-canvas {
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  z-index: 0;
  pointer-events: none;
}

.app {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  height: 100vh;
  height: 100dvh;
}

/* --- HEADER --- */
.header {
  padding: 0.75rem 1.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--border-subtle);
  background: rgba(10, 10, 20, 0.9);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  flex-shrink: 0;
  z-index: 10;
}

.logo {
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--accent);
  margin: 0;
  line-height: 1;
}

.logo span { color: var(--gold); }

.network-status {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.6rem;
  color: var(--text-muted);
}

.pulse-dot {
  width: 5px; height: 5px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 6px var(--green);
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 0.4; }
  50% { opacity: 1; }
}

/* --- STATUS BAR --- */
.status-bar {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1.25rem;
  padding: 0.45rem 1rem;
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border-subtle);
  font-size: 0.65rem;
  flex-shrink: 0;
}

.status-item {
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.status-label {
  text-transform: uppercase;
  font-size: 0.55rem;
  letter-spacing: 1px;
  color: var(--text-muted);
}

.status-value {
  font-weight: 600;
  font-family: 'SF Mono', 'Fira Code', 'Courier New', monospace;
}

.status-value.orange { color: var(--accent); }
.status-value.gold { color: var(--gold); }
.status-value.green { color: var(--green); }

.mining-progress {
  width: 50px; height: 3px;
  background: var(--text-faint);
  border-radius: 2px;
  overflow: hidden;
}

.mining-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--accent), var(--gold));
  border-radius: 2px;
  transition: width 0.5s ease;
}

/* ============================================================
   VIEWS — Only one visible at a time
   ============================================================ */
.view { display: none; }
.view.active {
  display: flex;
  flex-direction: column;
  flex: 1;
  overflow: hidden;
}

/* ============================================================
   SWIPE FEED
   ============================================================ */
.feed-viewport {
  flex: 1;
  overflow: hidden;
  position: relative;
}

.feed-track {
  display: flex;
  height: 100%;
  transition: transform 0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  will-change: transform;
}

.feed-track.dragging { transition: none; }

/* Individual post (fills one screen) */
.post-slide {
  min-width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  padding: 1.25rem;
  padding-right: 2.5rem;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
}

.post-slide:last-child {
  padding-right: 1.25rem;
}

.post-card {
  flex: 1;
  display: flex;
  flex-direction: column;
  max-width: 520px;
  width: 100%;
  margin: 0 auto;
  background: var(--bg-card);
  border-radius: 12px;
  padding: 1.25rem;
  transition: border-color 0.3s ease, box-shadow 0.3s ease, opacity 0.3s ease;
}

.post-card.unread {
  border: 1.5px solid var(--unread-border);
  box-shadow: var(--unread-shadow);
}

.post-card.read {
  border: 1.5px solid var(--read-border);
  box-shadow: none;
  opacity: 0.7;
}

.post-card.active-card {
  opacity: 1;
}

.post-tx-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.75rem;
}

.post-tx-id {
  font-family: 'SF Mono', 'Fira Code', 'Courier New', monospace;
  font-size: 0.65rem;
  color: var(--text-muted);
}

.post-tx-id .hash { color: var(--gold-dim); }

.post-tx-status {
  font-size: 0.55rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  padding: 0.15rem 0.5rem;
  border-radius: 4px;
}

.post-tx-status.confirmed {
  color: var(--green);
  background: var(--green-dim);
}

.post-tx-status.pending {
  color: var(--accent);
  background: var(--accent-glow);
}

.post-image {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 10px;
  overflow: hidden;
  margin-bottom: 1rem;
  flex-shrink: 0;
}

.post-image img {
  width: 100%;
  display: block;
}

.post-image-placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 200px;
  color: var(--text-faint);
  font-size: 0.8rem;
  font-style: italic;
  background: var(--bg-surface);
}

.post-caption {
  font-size: 0.95rem;
  color: var(--text-primary);
  line-height: 1.75;
  flex: 1;
}

.post-meta {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding-top: 0.75rem;
  margin-top: auto;
  border-top: 1px solid var(--border-subtle);
  font-family: 'SF Mono', 'Fira Code', 'Courier New', monospace;
  font-size: 0.55rem;
  color: var(--text-faint);
}

/* Position dots */
.feed-dots {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 0.6rem 0;
  background: var(--bg-deep);
  flex-shrink: 0;
}

.feed-dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--text-faint);
  transition: all 0.3s ease;
}

.feed-dot.active-dot {
  background: var(--accent);
  box-shadow: 0 0 6px var(--accent-glow);
  transform: scale(1.3);
}

.feed-dot.unread-dot {
  background: var(--accent);
}

.feed-dot.read-dot {
  background: var(--text-faint);
}

/* Swipe hint */
.swipe-hint {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.7rem;
  color: var(--text-muted);
  animation: hint-fade 3s ease-in-out forwards;
  pointer-events: none;
  z-index: 5;
}

.swipe-arrow {
  font-size: 1rem;
  animation: hint-slide 1.5s ease-in-out infinite;
}

@keyframes hint-slide {
  0%, 100% { transform: translateX(0); }
  50% { transform: translateX(6px); }
}

@keyframes hint-fade {
  0%, 70% { opacity: 1; }
  100% { opacity: 0; }
}

/* ============================================================
   ARCHIVE VIEW
   ============================================================ */
.archive-scroll {
  flex: 1;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  padding: 1.5rem;
}

.archive-header {
  display: flex;
  align-items: center;
  margin-bottom: 1.25rem;
}

.archive-title {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--text-muted);
  white-space: nowrap;
}

.archive-line {
  flex: 1;
  height: 1px;
  background: linear-gradient(90deg, var(--border-subtle), transparent);
  margin-left: 1rem;
}


/* Current block in archive */
.current-block-card {
  background: #0e0e0e;
  border: 1.5px solid var(--accent-border);
  border-radius: 10px;
  margin-bottom: 1rem;
  overflow: hidden;
}

.current-block-inner {
  display: flex;
  flex-direction: column;
  padding: 1rem 1.25rem;
}

.current-block-left {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  margin-bottom: 0.75rem;
}

.current-block-icon {
  width: 36px; height: 36px;
  border: 1.5px solid var(--accent);
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--accent);
  font-family: 'SF Mono', 'Fira Code', 'Courier New', monospace;
  flex-shrink: 0;
}

.current-block-content {
  display: flex;
  flex-direction: column;
  flex: 1;
}

.current-block-headline {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--accent);
  line-height: 1.3;
  margin-bottom: 0.15rem;
}

.current-block-meta {
  font-size: 0.62rem;
  color: var(--text-muted);
  font-family: 'SF Mono', 'Fira Code', 'Courier New', monospace;
  letter-spacing: 0.3px;
}

.current-block-txcount {
  font-size: 0.72rem;
  color: var(--text-secondary);
  font-family: 'SF Mono', 'Fira Code', 'Courier New', monospace;
  margin-bottom: 0.75rem;
}

.block-progress-bar {
  width: 100%;
  height: 3px;
  background: #1a1a1a;
  border-radius: 2px;
  overflow: hidden;
  margin-top: 0.75rem;
}

.block-progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--accent), var(--gold));
  border-radius: 2px;
  width: 0%;
  transition: width 0.5s ease;
}

/* Sealed blocks */
.sealed-block {
  background: #0e0e0e;
  border: 1px solid #222;
  border-radius: 10px;
  margin-bottom: 0.6rem;
  overflow: hidden;
  cursor: pointer;
  transition: border-color 0.3s ease;
}

.sealed-block:hover { border-color: #444; }

.sealed-block-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.25rem;
}

.sealed-left {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  min-width: 0;
}

.sealed-icon {
  width: 36px; height: 36px;
  border: 1px solid #333;
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.7rem;
  font-weight: 700;
  color: #666;
  font-family: 'SF Mono', 'Fira Code', 'Courier New', monospace;
  flex-shrink: 0;
}

.sealed-content { min-width: 0; }

.sealed-headline {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--accent);
  line-height: 1.3;
  margin-bottom: 0.15rem;
}

.sealed-meta {
  font-size: 0.62rem;
  color: #555;
  font-family: 'SF Mono', 'Fira Code', 'Courier New', monospace;
  letter-spacing: 0.3px;
}

.sealed-arrow {
  font-size: 0.8rem;
  color: #444;
  flex-shrink: 0;
  transition: color 0.2s;
}

.sealed-block:hover .sealed-arrow { color: var(--accent); }

.sealed-connector {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0.05rem 0;
}

.sealed-link {
  width: 1px;
  height: 10px;
  background: #222;
}

/* --- INSTALL VIEW --- */
.install-scroll {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 2rem 1.5rem;
  text-align: center;
}

.install-hero {
  max-width: 420px;
  margin-bottom: 2rem;
}

.install-hero h2 {
  font-size: 1.85rem;
  font-weight: 300;
  color: var(--text-primary);
  margin-bottom: 0.65rem;
  letter-spacing: -0.3px;
  line-height: 1.3;
}

.install-hero h2 strong {
  font-weight: 700;
  color: var(--accent);
}

.install-hero p {
  font-size: 0.95rem;
  color: var(--text-secondary);
}

.install-actions {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
}

.btn-primary {
  display: inline-block;
  padding: 0.8rem 2rem;
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 0.3px;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  background: var(--accent);
  color: var(--bg-deep);
  transition: all 0.2s ease;
}

.btn-primary:hover {
  box-shadow: 0 4px 20px rgba(247, 147, 26, 0.3);
  transform: translateY(-1px);
}

.btn-secondary {
  display: inline-block;
  padding: 0.8rem 2rem;
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 0.3px;
  border: 1px solid rgba(247, 147, 26, 0.25);
  border-radius: 8px;
  cursor: pointer;
  background: transparent;
  color: var(--accent);
  transition: all 0.2s ease;
}

.btn-secondary:hover {
  background: var(--accent-soft);
}

.installed-msg {
  color: var(--green);
  font-weight: 600;
  font-size: 0.85rem;
}

/* --- NEWSLETTER --- */
.newsletter-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 10px;
  padding: 1.5rem;
  text-align: center;
  margin-top: 1.5rem;
}

.newsletter-card h3 {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.35rem;
}

.newsletter-card p {
  font-size: 0.82rem;
  color: var(--text-secondary);
}

.newsletter-badge {
  display: inline-block;
  margin-top: 0.75rem;
  font-size: 0.6rem;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--gold);
  padding: 0.2rem 0.65rem;
  border: 1px solid var(--gold-dim);
  border-radius: 20px;
}

/* --- BOTTOM NAV --- */
.nav-bar {
  display: flex;
  align-items: center;
  justify-content: space-around;
  padding: 0.6rem 1rem;
  background: rgba(10, 10, 20, 0.92);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-top: 1px solid var(--border-subtle);
  flex-shrink: 0;
}

.nav-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.2rem;
  font-size: 0.55rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  cursor: pointer;
  padding: 0.25rem 0.75rem;
  border-radius: 6px;
  transition: color 0.2s;
  border: none;
  background: none;
}

.nav-item.active { color: var(--accent); }
.nav-item:hover { color: var(--text-secondary); }

.nav-icon {
  font-size: 1.1rem;
  line-height: 1;
}

/* --- RESPONSIVE --- */
@media (max-width: 380px) {
  .status-bar { gap: 0.6rem; }
  .status-label { font-size: 0.5rem; }
  .post-caption { font-size: 0.88rem; }
}

@media (min-width: 768px) {
  .post-card { max-width: 480px; }
  .post-image-placeholder { min-height: 280px; }
}