/* === SMS INFRASTRUCTURE SECTION === */
/* Aesthetic: Direct Line — Messaging interface, P2P conversation, real-time queue */
/* Personality: Human-like automation, compliance-first, precision targeting */

body.work-sms {
  font-family: var(--font-sans);
  --msg-blue: #3b82f6;
  --msg-blue-dark: #2563eb;
  --msg-green: #22c55e;
  --msg-green-dark: #16a34a;
  --msg-slate: #1e293b;
  --msg-gray: #64748b;
  --msg-light: #f1f5f9;
  --msg-border: #e2e8f0;
  --msg-surface: #f8fafc;
  --msg-amber: #f59e0b;
  --msg-red: #ef4444;
}

/* Conversation Hero */
.conversation-hero {
  padding: clamp(3rem, 8vw, 5rem) 0;
  position: relative;
  border-bottom: 1px solid var(--msg-border);
}

.hero-split {
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: clamp(2rem, 5vw, 4rem);
  align-items: start;
}

.hero-left {
  max-width: 560px;
}

.hero-right {
  display: flex;
  justify-content: center;
}

.channel-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--msg-green);
  background: rgba(34, 197, 94, 0.1);
  border: 1px solid rgba(34, 197, 94, 0.3);
  padding: 6px 14px;
  border-radius: 100px;
  margin-bottom: var(--spacing-lg);
  opacity: 0;
  animation: fadeIn 0.4s ease forwards;
  animation-delay: 0.1s;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

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

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

.conversation-hero h1 {
  font-size: clamp(2.5rem, 6vw, 4rem);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--text-primary);
  margin-bottom: var(--spacing-lg);
  opacity: 0;
  animation: slideUp 0.5s ease forwards;
  animation-delay: 0.2s;
}

.conversation-hero h1 span {
  color: var(--msg-blue);
}

.hero-intro {
  font-size: clamp(1rem, 2vw, 1.15rem);
  line-height: 1.7;
  color: var(--text-secondary);
  margin-bottom: var(--spacing-xl);
  opacity: 0;
  animation: slideUp 0.5s ease forwards;
  animation-delay: 0.4s;
}

.hero-stats {
  display: flex;
  gap: var(--spacing-xl);
  opacity: 0;
  animation: slideUp 0.5s ease forwards;
  animation-delay: 0.6s;
}

.stat-item {
  display: flex;
  flex-direction: column;
}

.stat-value {
  font-family: var(--font-mono);
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1;
}

.stat-label {
  font-size: 0.8rem;
  color: var(--msg-gray);
  margin-top: 4px;
}

/* Phone Mockup with Messages */
.phone-mockup {
  background: linear-gradient(135deg, #1e293b 0%, #0f172a 100%);
  border-radius: 36px;
  padding: 16px;
  box-shadow:
    0 30px 80px -20px rgba(0, 0, 0, 0.4),
    inset 0 2px 4px rgba(255, 255, 255, 0.05),
    inset 0 -2px 4px rgba(0, 0, 0, 0.2);
  opacity: 0;
  animation: slideUp 0.6s ease forwards;
  animation-delay: 0.5s;
  position: relative;
  max-width: 340px;
  margin: 0 auto;
}

.phone-mockup::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 120px;
  height: 24px;
  background: rgba(0, 0, 0, 0.3);
  border-radius: 0 0 16px 16px;
  z-index: 2;
}

.phone-screen {
  background: var(--msg-surface);
  border-radius: 28px;
  overflow: hidden;
  position: relative;
  box-shadow: inset 0 0 0 2px rgba(0, 0, 0, 0.1);
}

.phone-notch {
  height: 0;
  display: none;
}

.phone-header {
  background: var(--msg-blue);
  padding: var(--spacing-md) var(--spacing-lg);
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.sender-avatar {
  width: 36px;
  height: 36px;
  background: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.9rem;
  color: var(--msg-blue);
}

.sender-info {
  flex: 1;
}

.sender-name {
  font-size: 0.9rem;
  font-weight: 600;
  color: white;
}

.sender-status {
  font-size: 0.7rem;
  color: rgba(255, 255, 255, 0.8);
}

.message-thread {
  padding: var(--spacing-lg);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  min-height: 300px;
}

.message-bubble {
  max-width: 85%;
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: 18px;
  font-size: 0.9rem;
  line-height: 1.5;
  opacity: 0;
  animation: bubbleReveal 0.4s ease forwards;
}

@keyframes bubbleReveal {
  from {
    opacity: 0;
    transform: translateY(10px) scale(0.95);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

.message-bubble.incoming {
  background: white;
  color: var(--msg-slate);
  border-bottom-left-radius: 4px;
  align-self: flex-start;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
}

.message-bubble.outgoing {
  background: var(--msg-green);
  color: white;
  border-bottom-right-radius: 4px;
  align-self: flex-end;
}

.message-bubble:nth-child(1) { animation-delay: 0.8s; }
.message-bubble:nth-child(2) { animation-delay: 1.2s; }
.message-bubble:nth-child(3) { animation-delay: 1.6s; }
.message-bubble:nth-child(4) { animation-delay: 2.0s; }

.message-time {
  font-size: 0.65rem;
  color: var(--msg-gray);
  text-align: center;
  margin: var(--spacing-sm) 0;
  opacity: 0;
  animation: fadeIn 0.3s ease forwards;
  animation-delay: 2.2s;
}

.typing-indicator {
  display: flex;
  gap: 4px;
  padding: var(--spacing-sm) var(--spacing-md);
  background: white;
  border-radius: 18px;
  border-bottom-left-radius: 4px;
  align-self: flex-start;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
  opacity: 0;
  animation: fadeIn 0.3s ease forwards;
  animation-delay: 2.4s;
}

.typing-indicator span {
  width: 8px;
  height: 8px;
  background: var(--msg-gray);
  border-radius: 50%;
  animation: typingPulse 1.4s ease-in-out infinite;
}

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

.typing-indicator span:nth-child(2) { animation-delay: 0.2s; }
.typing-indicator span:nth-child(3) { animation-delay: 0.4s; }

/* Show typing indicator immediately on revisits (skip cascade animation) */
html.revisit .typing-indicator {
  opacity: 1;
  animation: none;
}


/* Section Header (shared) */
.section-header {
  margin-bottom: var(--spacing-xl);
}

.section-marker {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--msg-blue);
  margin-bottom: var(--spacing-sm);
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.section-marker::before {
  content: '';
  width: 20px;
  height: 2px;
  background: var(--msg-blue);
}

body.work-sms h2 {
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--spacing-md);
  border: none;
  padding: 0;
}

body.work-sms h2::after {
  display: none;
}

.section-intro {
  color: var(--text-secondary);
  font-size: 1.05rem;
  max-width: 700px;
  line-height: 1.7;
}

/* P2P vs A2P Comparison */
.comparison-section {
  background: var(--msg-surface);
  margin: 0 calc(-1 * var(--spacing-lg));
  padding: var(--spacing-2xl) var(--spacing-lg);
  border-bottom: 1px solid var(--msg-border);
}

.comparison-section .section-header {
  text-align: center;
}

.comparison-section .section-intro {
  margin: 0 auto;
}

.comparison-cards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-xl);
  max-width: 900px;
  margin: 0 auto;
}

.compare-card {
  background: var(--bg-primary);
  border: 1px solid var(--msg-border);
  border-radius: 12px;
  padding: var(--spacing-xl);
  position: relative;
  transition: all 0.3s ease;
}

.compare-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  border-radius: 12px 12px 0 0;
}

.compare-card.p2p-card::before {
  background: linear-gradient(90deg, var(--msg-green), var(--msg-green-dark));
}

.compare-card.a2p-card::before {
  background: linear-gradient(90deg, var(--msg-blue), var(--msg-blue-dark));
}

.compare-card.p2p-card {
  border-color: rgba(34, 197, 94, 0.2);
}

.compare-card.a2p-card {
  border-color: rgba(59, 130, 246, 0.2);
}

.compare-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.08);
}

.card-header {
  display: flex;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-md);
}

.card-icon {
  width: 44px;
  height: 44px;
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.1), rgba(34, 197, 94, 0.1));
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--msg-blue);
  flex-shrink: 0;
}

.compare-card.p2p-card .card-icon {
  color: var(--msg-green);
  background: linear-gradient(135deg, rgba(34, 197, 94, 0.1), rgba(22, 163, 74, 0.1));
}

.compare-card.a2p-card .card-icon {
  color: var(--msg-blue);
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.1), rgba(37, 99, 235, 0.1));
}

.card-title-group {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
}

.card-title-row {
  display: flex;
  align-items: baseline;
  gap: var(--spacing-sm);
  flex-wrap: wrap;
}

.compare-card h3 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
  margin: 0;
}

.card-subtitle {
  font-size: 0.85rem;
  color: var(--msg-gray);
  font-weight: 400;
}

.card-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 4px 10px;
  border-radius: 4px;
  align-self: flex-start;
}

.compare-card.p2p-card .card-badge {
  color: var(--msg-green-dark);
  background: rgba(34, 197, 94, 0.1);
}

.compare-card.a2p-card .card-badge {
  color: var(--msg-gray);
  background: var(--msg-light);
}

.card-desc {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: var(--spacing-md);
}


.card-features {
  list-style: none;
  padding: 0;
  margin: 0;
  border-top: 1px solid var(--msg-border);
  padding-top: var(--spacing-md);
}

.card-features li {
  font-size: 0.85rem;
  color: var(--text-secondary);
  padding: 8px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

.card-features li:last-child {
  border-bottom: none;
}

.feature-label {
  font-weight: 600;
  color: var(--text-primary);
}

.feature-value {
  color: var(--msg-gray);
  text-align: right;
}

/* Tier Visualization */
.tier-section {
  padding: var(--spacing-2xl) 0;
  border-bottom: 1px solid var(--msg-border);
}

.tier-visual {
  margin-bottom: var(--spacing-xl);
}

.tier-bar-container {
  display: flex;
  gap: 4px;
  height: 160px;
  align-items: flex-end;
  padding: var(--spacing-lg);
  background: var(--msg-surface);
  border: 1px solid var(--msg-border);
  border-radius: 8px;
  margin-bottom: var(--spacing-md);
}

.tier-bar {
  flex: 1;
  background: linear-gradient(180deg, var(--msg-green) 0%, var(--msg-green-dark) 100%);
  border-radius: 4px 4px 0 0;
  position: relative;
  cursor: pointer;
  transition: all 0.2s ease;
  opacity: 0;
  animation: barGrow 0.5s ease forwards;
  height: var(--bar-height);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-end;
  padding-bottom: 4px;
}

.tier-bar:hover {
  filter: brightness(1.1);
  transform: scaleY(1.05);
  transform-origin: bottom;
}

/* Tier color gradient from hot to cold */
.tier-bar.tier-1, .tier-bar.tier-2, .tier-bar.tier-3,
.tier-bar.tier-4, .tier-bar.tier-5 {
  background: linear-gradient(180deg, var(--msg-green) 0%, var(--msg-green-dark) 100%);
}

.tier-bar.tier-6, .tier-bar.tier-7, .tier-bar.tier-8,
.tier-bar.tier-9, .tier-bar.tier-10 {
  background: linear-gradient(180deg, var(--msg-blue) 0%, var(--msg-blue-dark) 100%);
}

.tier-bar.tier-11, .tier-bar.tier-12, .tier-bar.tier-13,
.tier-bar.tier-14, .tier-bar.tier-15 {
  background: linear-gradient(180deg, var(--msg-gray) 0%, #475569 100%);
}

.tier-label {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  font-weight: 600;
  color: white;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
}

.tier-tooltip {
  display: none;
  position: absolute;
  bottom: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%);
  background: var(--msg-slate);
  color: white;
  padding: 6px 10px;
  border-radius: 4px;
  font-size: 0.7rem;
  white-space: nowrap;
  z-index: 10;
}

.tier-bar:hover .tier-tooltip {
  display: block;
}

@keyframes barGrow {
  from {
    opacity: 0;
    height: 0 !important;
  }
  to {
    opacity: 1;
  }
}

/* Stagger the bars */
.tier-bar:nth-child(1) { animation-delay: 0.1s; }
.tier-bar:nth-child(2) { animation-delay: 0.15s; }
.tier-bar:nth-child(3) { animation-delay: 0.2s; }
.tier-bar:nth-child(4) { animation-delay: 0.25s; }
.tier-bar:nth-child(5) { animation-delay: 0.3s; }
.tier-bar:nth-child(6) { animation-delay: 0.35s; }
.tier-bar:nth-child(7) { animation-delay: 0.4s; }
.tier-bar:nth-child(8) { animation-delay: 0.45s; }

.tier-legend {
  display: flex;
  justify-content: center;
  gap: var(--spacing-xl);
  font-size: 0.8rem;
  color: var(--msg-gray);
}

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

.legend-dot {
  width: 12px;
  height: 12px;
  border-radius: 2px;
}

.legend-item.hot .legend-dot {
  background: var(--msg-green);
}

.legend-item.warm .legend-dot {
  background: var(--msg-blue);
}

.legend-item.cold .legend-dot {
  background: var(--msg-gray);
}

/* Tier Explainer */
.tier-explainer {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-lg);
  margin-top: var(--spacing-xl);
}

.explainer-item {
  text-align: center;
  padding: var(--spacing-lg);
  background: var(--msg-surface);
  border: 1px solid var(--msg-border);
  border-radius: 8px;
}

.explainer-icon {
  font-size: 1.5rem;
  margin-bottom: var(--spacing-sm);
}

.explainer-item h4 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--spacing-xs);
}

.explainer-item p {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* Compliance Section */
.compliance-section {
  padding: var(--spacing-2xl) 0;
  border-bottom: 1px solid var(--msg-border);
}

.compliance-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--spacing-lg);
}

.compliance-item {
  text-align: center;
  padding: var(--spacing-lg);
  background: var(--msg-surface);
  border: 1px solid var(--msg-border);
  border-radius: 8px;
  transition: all 0.3s ease;
}

.compliance-item:hover {
  border-color: var(--msg-amber);
  transform: translateY(-2px);
}

.compliance-icon {
  font-size: 1.5rem;
  margin-bottom: var(--spacing-sm);
}

.compliance-item h4 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--spacing-xs);
}

.compliance-item p {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* Capabilities */
.capabilities-section {
  padding: var(--spacing-2xl) 0;
  border-bottom: 1px solid var(--msg-border);
}

.capability-list {
  display: flex;
  flex-direction: column;
  gap: 1px;
  background: var(--msg-border);
  border: 1px solid var(--msg-border);
  border-radius: 8px;
  overflow: hidden;
}

.capability-row {
  display: flex;
  gap: var(--spacing-lg);
  padding: var(--spacing-lg);
  background: var(--bg-primary);
  transition: all 0.3s ease;
}

.capability-row:hover {
  background: var(--msg-surface);
  padding-left: var(--spacing-xl);
}

.cap-number {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--msg-blue);
  width: 28px;
  flex-shrink: 0;
}

.cap-content h3 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--spacing-xs);
}

.cap-content p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin: 0;
}

/* Services Section */
.services-section {
  padding: var(--spacing-2xl) var(--spacing-lg);
  background: var(--msg-surface);
  margin: 0 calc(-1 * var(--spacing-lg));
}

.services-header {
  margin-bottom: var(--spacing-xl);
}

.services-header h2 {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--spacing-sm);
}

.services-header p {
  color: var(--text-secondary);
  font-size: 1.05rem;
}

.service-list {
  display: grid;
  gap: 1px;
  background: var(--msg-border);
  border: 1px solid var(--msg-border);
  border-radius: 8px;
  overflow: hidden;
}

.service-item {
  display: flex;
  gap: var(--spacing-lg);
  padding: var(--spacing-lg);
  background: var(--bg-primary);
  transition: all 0.3s ease;
}

.service-item:hover {
  background: white;
  padding-left: var(--spacing-xl);
}

.service-num {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--msg-blue);
  width: 28px;
  flex-shrink: 0;
}

.service-content h3 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--spacing-xs);
}

.service-content p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin: 0;
}

/* Tech Section */
.tech-section {
  padding: var(--spacing-2xl) 0;
  border-bottom: 1px solid var(--msg-border);
}

.tech-section h2 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--spacing-lg);
}

.tech-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
}

.tech-tags span {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--msg-blue);
  background: rgba(59, 130, 246, 0.08);
  border: 1px solid rgba(59, 130, 246, 0.2);
  padding: 8px 16px;
  border-radius: 4px;
  transition: all 0.2s ease;
}

.tech-tags span:hover {
  background: rgba(59, 130, 246, 0.15);
  border-color: var(--msg-blue);
  transform: translateY(-2px);
}

/* Proof Section */
.proof-section {
  padding: var(--spacing-2xl) 0;
  border-bottom: 1px solid var(--msg-border);
}

.proof-content {
  display: flex;
  gap: var(--spacing-xl);
  align-items: flex-start;
}

.proof-arrow {
  font-size: 2.5rem;
  color: var(--msg-green);
  flex-shrink: 0;
  line-height: 1;
}

.proof-text h2 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--spacing-md);
}

.proof-text p {
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: var(--spacing-sm);
}

.proof-text p:last-child {
  margin-bottom: 0;
}

/* CTA Section */
.sms-cta {
  background: linear-gradient(135deg, var(--msg-slate) 0%, #334155 100%);
  margin: var(--spacing-2xl) calc(-1 * var(--spacing-lg)) calc(-1 * var(--spacing-lg));
  padding: var(--spacing-2xl) var(--spacing-lg);
  position: relative;
  overflow: hidden;
}

.sms-cta::before {
  content: '';
  position: absolute;
  top: 50%;
  right: 10%;
  width: 250px;
  height: 250px;
  background: radial-gradient(circle, rgba(59, 130, 246, 0.2) 0%, transparent 70%);
  transform: translateY(-50%);
  pointer-events: none;
}

.sms-cta .cta-inner {
  position: relative;
  z-index: 1;
  max-width: 500px;
}

.sms-cta h2 {
  font-size: clamp(1.5rem, 4vw, 2rem);
  font-weight: 700;
  color: white !important;
  margin-bottom: var(--spacing-md);
  border: none;
  padding: 0;
}

.sms-cta h2::after {
  display: none;
}

.sms-cta p {
  color: rgba(255, 255, 255, 0.8);
  font-size: 1.1rem;
  margin-bottom: var(--spacing-xl);
  line-height: 1.6;
}

.sms-cta .cta-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-family: var(--font-sans);
  font-size: 1rem;
  font-weight: 600;
  color: var(--msg-slate);
  background: white;
  padding: 14px 28px;
  border-radius: 8px;
  text-decoration: none;
  transition: all 0.3s ease;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
}

.sms-cta .cta-btn:hover {
  background: var(--msg-light);
  border-color: var(--msg-light);
  color: var(--msg-slate);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
  text-decoration: none;
}

/* Responsive */
@media (max-width: 1000px) {
  .hero-split {
    grid-template-columns: 1fr;
  }

  .phone-mockup {
    max-width: 340px;
  }

  .comparison-cards {
    grid-template-columns: 1fr;
  }

  .compliance-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .tier-explainer {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .conversation-hero {
    padding: var(--spacing-2xl) 0;
  }

  .conversation-hero h1 {
    font-size: 2.25rem;
  }

  .hero-stats {
    flex-wrap: wrap;
    gap: var(--spacing-lg);
  }

  .tier-bar-container {
    height: 100px;
  }

  .tier-label {
    font-size: 0.5rem;
  }

  .proof-content {
    flex-direction: column;
  }

  .capability-row {
    flex-direction: column;
    gap: var(--spacing-sm);
  }

  .compliance-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 500px) {
  .phone-mockup {
    max-width: 100%;
  }

  .hero-stats {
    flex-direction: column;
    gap: var(--spacing-md);
  }

  .tier-label {
    display: none;
  }

  .compare-card {
    padding: var(--spacing-lg);
  }

  .sms-cta {
    padding: var(--spacing-xl) var(--spacing-md);
  }
}

/* Dark mode */
@media (prefers-color-scheme: dark) {
  body.work-sms {
    --msg-blue: #60a5fa;
    --msg-green: #4ade80;
    --msg-surface: #0f172a;
    --msg-border: #334155;
    --msg-light: #1e293b;
  }

  /* Phone mockup - iOS Messages dark mode styling */
  .phone-mockup {
    background: linear-gradient(135deg, #3a3a3c 0%, #2c2c2e 100%);
    box-shadow:
      0 30px 80px -20px rgba(0, 0, 0, 0.8),
      inset 0 2px 4px rgba(255, 255, 255, 0.15),
      inset 0 -2px 4px rgba(0, 0, 0, 0.3);
  }

  .phone-mockup::before {
    background: rgba(0, 0, 0, 0.5);
  }

  .phone-screen {
    background: #000000; /* Pure black iOS Messages background */
    box-shadow: inset 0 0 0 2px rgba(255, 255, 255, 0.1);
  }

  .message-thread {
    background: #000000;
  }

  /* Incoming messages - iOS dark gray */
  .message-bubble.incoming {
    background: #2c2c2e; /* iOS Messages incoming bubble color */
    color: #ffffff;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
  }

  /* Outgoing messages - iOS green */
  .message-bubble.outgoing {
    background: #34c759; /* iOS Messages green for outgoing */
    color: #ffffff;
  }

  .typing-indicator {
    background: #2c2c2e; /* Match incoming bubble color */
  }

  .typing-indicator span {
    background: rgba(255, 255, 255, 0.6);
  }

  .compare-card {
    background: var(--bg-secondary);
  }

  .capability-row {
    background: var(--bg-secondary);
  }

  .capability-row:hover {
    background: var(--bg-primary);
  }

  .compliance-item {
    background: var(--bg-secondary);
  }

  .explainer-item {
    background: var(--bg-secondary);
  }
}