/* PingLater Landing Page */
/* Design: Dark theme with green accent, tab chaos animation */

:root {
  --bg-primary: #0a0f0d;
  --bg-secondary: #111916;
  --bg-card: #1a1f1c;
  --bg-hover: #252a27;
  --text-primary: #ffffff;
  --text-secondary: #b0b0b0;
  --text-muted: #666666;
  --accent: #4ade80;
  --accent-dim: rgba(74, 222, 128, 0.12);
  --accent-glow: rgba(74, 222, 128, 0.4);
  --border: rgba(255, 255, 255, 0.08);
  --radius: 20px;
  --radius-sm: 12px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  scroll-behavior: smooth;
}


body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  padding-top: 0; /* Header is transparent initially */
}

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ==========================================
   FLOATING TABS CHAOS
   ========================================== */

.tabs-chaos {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  pointer-events: none;
  z-index: 100;
  transition: opacity 0.8s ease;
}

.tabs-chaos.hidden {
  opacity: 0;
  pointer-events: none;
}

.floating-tab {
  position: fixed;
  transform: rotate(var(--rotate, 0deg));
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px 16px;
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  color: var(--text-secondary);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
  white-space: nowrap;
  animation: float 4s ease-in-out infinite;
  animation-delay: var(--delay);
  will-change: transform, opacity;
}

.tab-favicon {
  width: 18px;
  height: 18px;
  border-radius: 3px;
  flex-shrink: 0;
}

@keyframes float {
  0%, 100% {
    transform: rotate(var(--rotate, 0deg)) translateY(0);
  }
  50% {
    transform: rotate(var(--rotate, 0deg)) translateY(-10px);
  }
}

/* ==========================================
   HERO SECTION
   ========================================== */

.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  z-index: 10;
  padding: 40px 24px;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 800px;
  height: 800px;
  background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
  opacity: 0.15;
  pointer-events: none;
}

.hero-content {
  text-align: center;
  max-width: 600px;
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 1s ease, transform 1s ease;
  transition-delay: 0.5s;
  position: relative;
  z-index: 150;
}

.hero-content.visible {
  opacity: 1;
  transform: translateY(0);
}

.hero-logo {
  margin-bottom: 24px;
}

.hero-logo-icon {
  width: 100px;
  height: 100px;
  border-radius: 24px;
  box-shadow: 0 16px 48px rgba(74, 222, 128, 0.3);
  animation: pulse-glow 3s ease-in-out infinite;
}

@keyframes pulse-glow {
  0%, 100% {
    box-shadow: 0 16px 48px rgba(74, 222, 128, 0.3);
  }
  50% {
    box-shadow: 0 16px 64px rgba(74, 222, 128, 0.5);
  }
}

.hero-title {
  margin-bottom: 16px;
}

.hero-title-main {
  font-family: 'Archivo', sans-serif;
  font-size: clamp(48px, 10vw, 72px);
  font-weight: 800;
  letter-spacing: -2px;
  background: linear-gradient(135deg, var(--text-primary) 0%, var(--accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-family: 'Archivo', sans-serif;
  font-size: clamp(20px, 4vw, 28px);
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 16px;
}

.hero-desc {
  font-size: 18px;
  color: var(--text-muted);
  margin-bottom: 40px;
  max-width: 400px;
  margin-left: auto;
  margin-right: auto;
}

.hero-cta {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}

.cta-button {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 16px 32px;
  font-family: 'Archivo', sans-serif;
  font-size: 18px;
  font-weight: 600;
  text-decoration: none;
  border-radius: 50px;
  transition: var(--transition);
  cursor: pointer;
  border: none;
}

.cta-button.primary {
  background: var(--accent);
  color: var(--bg-primary);
  box-shadow: 0 8px 32px rgba(74, 222, 128, 0.3);
}

.cta-button.primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 40px rgba(74, 222, 128, 0.4);
}

.cta-button.large {
  padding: 20px 40px;
  font-size: 20px;
}

.cta-button .chrome-icon {
  width: 24px;
  height: 24px;
}

.cta-note {
  font-size: 14px;
  color: var(--text-muted);
}

/* Creator Note */
.creator-note {
  margin-top: 32px;
  font-size: 13px;
  color: var(--text-muted);
  font-style: italic;
  max-width: 400px;
  line-height: 1.6;
  text-align: center;
  margin-left: auto;
  margin-right: auto;
}

.creator-note span {
  color: var(--accent);
  font-style: normal;
  font-weight: 500;
}

.scroll-indicator {
  margin-top: 32px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: var(--text-muted);
  font-size: 13px;
  opacity: 0;
  transition: opacity 0.5s ease;
  animation: bounce-down 2s ease-in-out infinite;
}

.scroll-indicator.visible {
  opacity: 1;
}

.scroll-arrow {
  width: 24px;
  height: 24px;
}

.scroll-arrow svg {
  width: 100%;
  height: 100%;
}

@keyframes bounce-down {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(8px);
  }
}

/* ==========================================
   SECTIONS
   ========================================== */

.section {
  padding: 80px 0;
  position: relative;
}

.section-header {
  text-align: center;
  margin-bottom: 64px;
}

.section-badge {
  display: inline-block;
  padding: 8px 16px;
  background: var(--accent-dim);
  color: var(--accent);
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  border-radius: 20px;
  margin-bottom: 20px;
}

.section-title {
  font-family: 'Archivo', sans-serif;
  font-size: clamp(32px, 5vw, 48px);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -1px;
}

/* ==========================================
   FEATURES
   ========================================== */

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

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  transition: var(--transition);
}

.feature-card.has-screenshot {
  padding: 0;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.feature-screenshot {
  width: 100%;
  background: linear-gradient(180deg, #0a1a0f 0%, #0d1f14 50%, #0a0f0a 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
}

.feature-screenshot img {
  max-width: 100%;
  height: auto;
  border-radius: 8px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.4);
}

.feature-content {
  padding: 24px;
}

.feature-content h3 {
  font-family: 'Archivo', sans-serif;
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 8px;
}

.feature-content p {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.6;
}

.feature-card:hover {
  transform: translateY(-4px);
  border-color: var(--accent-glow);
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.3);
}

.feature-icon {
  width: 48px;
  height: 48px;
  background: var(--accent-dim);
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  color: var(--accent);
}

.feature-icon svg {
  width: 24px;
  height: 24px;
}

.feature-card h3 {
  font-family: 'Archivo', sans-serif;
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 8px;
}

.feature-card p {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ==========================================
   HOW IT WORKS
   ========================================== */

.steps {
  display: flex;
  flex-direction: column;
  gap: 80px;
}

.step {
  display: grid;
  grid-template-columns: 80px 1fr 1fr;
  gap: 40px;
  align-items: center;
}

.step:nth-child(even) {
  direction: rtl;
}

.step:nth-child(even) > * {
  direction: ltr;
}

.step-number {
  width: 80px;
  height: 80px;
  background: var(--accent);
  color: var(--bg-primary);
  font-family: 'Archivo', sans-serif;
  font-size: 36px;
  font-weight: 800;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 8px 32px rgba(74, 222, 128, 0.3);
}

.step-content h3 {
  font-family: 'Archivo', sans-serif;
  font-size: 28px;
  font-weight: 700;
  margin-bottom: 12px;
}

.step-content p {
  font-size: 16px;
  color: var(--text-secondary);
}

.step-visual {
  display: flex;
  justify-content: center;
}

.step-visual img {
  max-width: 100%;
  height: auto;
  border-radius: 12px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
}

.step.optional {
  opacity: 0.85;
}

.step.optional .step-number {
  background: transparent;
  border: 2px dashed var(--accent);
  color: var(--accent);
}

.step.tip {
  background: var(--accent-dim);
  border: 1px solid var(--accent);
  border-radius: var(--radius);
  padding: 32px;
  margin-top: 24px;
}

.step.tip .step-number {
  background: transparent;
  font-size: 32px;
}

.step-badge {
  display: inline-block;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--accent);
  background: var(--accent-dim);
  padding: 4px 10px;
  border-radius: 20px;
  margin-bottom: 8px;
}

.step.tip .step-badge {
  background: rgba(0, 0, 0, 0.3);
}

/* Mock UI Elements */
.mock-popup {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 16px;
  width: 280px;
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.4);
}

.mock-header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
  font-size: 14px;
  color: var(--text-secondary);
}

.mock-favicon {
  width: 20px;
  height: 20px;
  background: var(--accent-dim);
  border-radius: 4px;
}

.mock-times {
  display: flex;
  gap: 8px;
}

.mock-time-btn {
  padding: 8px 16px;
  background: var(--bg-secondary);
  border-radius: 8px;
  font-size: 13px;
  color: var(--text-muted);
}

.mock-time-btn.active {
  background: var(--accent);
  color: var(--bg-primary);
  font-weight: 600;
}

.mock-notification {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 16px 20px;
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 14px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

.mock-notif-icon {
  width: 32px;
  height: 32px;
  background: var(--accent-dim);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
}

.mock-notification.snooze .mock-notif-icon {
  background: var(--accent);
  color: var(--bg-primary);
}

.mock-notification.reminder {
  border-color: var(--accent);
}

/* ==========================================
   DEMO SECTION
   ========================================== */

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

.demo-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.demo-card {
  display: flex;
  flex-direction: column;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: var(--transition);
}

.demo-card:hover {
  border-color: var(--accent-glow);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.3);
  transform: translateY(-4px);
}

.demo-media {
  position: relative;
  overflow: hidden;
  background: var(--bg-primary);
}

.demo-media img {
  width: 100%;
  height: auto;
  display: block;
}

.demo-info {
  padding: 20px;
  text-align: center;
}

.demo-info h3 {
  font-family: 'Archivo', sans-serif;
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--text-primary);
}

.demo-info p {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.5;
}

@media (max-width: 900px) {
  .demo-grid {
    grid-template-columns: 1fr;
    max-width: 400px;
    margin: 0 auto;
  }
}

/* ==========================================
   FAQ
   ========================================== */

.faq-list {
  max-width: 700px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.faq-question {
  width: 100%;
  padding: 20px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  background: transparent;
  border: none;
  color: var(--text-primary);
  font-family: 'Archivo', sans-serif;
  font-size: 16px;
  font-weight: 600;
  text-align: left;
  cursor: pointer;
  transition: var(--transition);
}

.faq-question:hover {
  background: var(--bg-hover);
}

.faq-icon {
  width: 24px;
  height: 24px;
  color: var(--accent);
  transition: transform 0.3s ease;
  flex-shrink: 0;
}

.faq-item.open .faq-icon {
  transform: rotate(45deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease, padding 0.3s ease;
}

.faq-item.open .faq-answer {
  max-height: 300px;
}

.faq-answer-content {
  padding: 0 24px 20px;
  color: var(--text-secondary);
  font-size: 15px;
  line-height: 1.7;
}

/* ==========================================
   TROUBLESHOOTING
   ========================================== */

.troubleshoot-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
  margin-bottom: 24px;
}

.troubleshoot-card {
  background: var(--bg-card);
  border-radius: var(--radius);
  padding: 28px;
  border: 1px solid var(--border);
}

.os-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
}

.os-icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.os-icon svg {
  width: 24px;
  height: 24px;
}

.os-icon.macos {
  background: rgba(255, 255, 255, 0.1);
  color: #FFFFFF;
}

.os-icon.windows {
  background: rgba(0, 120, 212, 0.2);
  color: #0078D4;
}

.os-header h3 {
  font-size: 20px;
  font-weight: 600;
}

.troubleshoot-desc {
  font-size: 14px;
  color: var(--text-muted);
  margin-bottom: 16px;
}

.troubleshoot-steps {
  list-style: none;
  counter-reset: step;
}

.troubleshoot-steps li {
  position: relative;
  padding-left: 36px;
  padding-bottom: 12px;
  font-size: 15px;
  color: var(--text-secondary);
  counter-increment: step;
}

.troubleshoot-steps li:last-child {
  padding-bottom: 0;
}

.troubleshoot-steps li::before {
  content: counter(step);
  position: absolute;
  left: 0;
  top: 0;
  width: 24px;
  height: 24px;
  background: var(--accent-dim);
  border-radius: 50%;
  font-size: 12px;
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
}

.troubleshoot-steps li strong {
  color: var(--text-primary);
}

.troubleshoot-note {
  padding: 16px 20px;
  background: var(--accent-dim);
  border-radius: var(--radius);
  border: 1px solid rgba(74, 222, 128, 0.2);
  text-align: center;
}

.troubleshoot-note p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* ==========================================
   FINAL CTA
   ========================================== */

.final-cta {
  padding: 100px 0;
}

.cta-card {
  position: relative;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 32px;
  overflow: hidden;
}

.cta-glow {
  position: absolute;
  top: -100%;
  left: -100%;
  width: 300%;
  height: 300%;
  background: conic-gradient(
    from 0deg,
    transparent 0deg,
    var(--accent) 60deg,
    transparent 120deg,
    transparent 180deg,
    var(--accent) 240deg,
    transparent 300deg,
    transparent 360deg
  );
  opacity: 0.1;
  animation: rotate-glow 10s linear infinite;
}

@keyframes rotate-glow {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

.cta-content {
  position: relative;
  z-index: 1;
  padding: 80px 40px;
  text-align: center;
  background: linear-gradient(180deg, var(--bg-secondary) 0%, rgba(17, 25, 22, 0.9) 100%);
}

.cta-content h2 {
  font-family: 'Archivo', sans-serif;
  font-size: clamp(28px, 5vw, 40px);
  font-weight: 700;
  margin-bottom: 16px;
}

.cta-content > p {
  font-size: 18px;
  color: var(--text-secondary);
  margin-bottom: 40px;
}

.cta-features {
  display: flex;
  justify-content: center;
  gap: 32px;
  margin-top: 32px;
  flex-wrap: wrap;
}

.cta-features span {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--text-secondary);
}

.cta-features svg {
  width: 18px;
  height: 18px;
  color: var(--accent);
}

/* ==========================================
   FOOTER
   ========================================== */

.footer {
  padding: 60px 0;
  border-top: 1px solid var(--border);
}

.footer-content {
  text-align: center;
}

.footer-brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
}

.footer-logo {
  width: 32px;
  height: 32px;
  border-radius: 8px;
}

.footer-brand span {
  font-family: 'Archivo', sans-serif;
  font-size: 20px;
  font-weight: 700;
}

.footer-tagline {
  font-size: 14px;
  color: var(--text-muted);
  margin-bottom: 24px;
}

.footer-links {
  display: flex;
  justify-content: center;
  gap: 24px;
  margin-bottom: 24px;
}

.footer-links a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 14px;
  transition: var(--transition);
}

.footer-links a:hover {
  color: var(--accent);
}

.footer-copy {
  font-size: 13px;
  color: var(--text-muted);
}

.footer-copy a {
  color: var(--accent);
  text-decoration: none;
}

/* ==========================================
   RESPONSIVE
   ========================================== */

@media (max-width: 900px) {
  html, body {
    overflow-x: hidden;
  }

  .step {
    grid-template-columns: 1fr;
    gap: 24px;
    text-align: center;
  }
  
  .step:nth-child(even) {
    direction: ltr;
  }
  
  .step-number {
    margin: 0 auto;
    width: 60px;
    height: 60px;
    font-size: 28px;
    justify-self: center;
  }
  
  .step-visual {
    order: 3;
    width: 100%;
    text-align: center;
  }
  
  .step-visual img {
    max-width: 90%;
    display: inline-block;
    margin: 0 auto;
  }
  
  .step.tip {
    padding: 24px 16px;
  }
  
  .step.tip .step-visual {
    text-align: center;
  }
  
  .step.tip .step-visual img {
    max-width: 85%;
    display: inline-block;
  }
}

@media (max-width: 600px) {
  .section {
    padding: 80px 0;
  }
  
  .floating-tab {
    font-size: 11px;
    padding: 8px 12px;
  }
  
  .features-grid {
    grid-template-columns: 1fr;
  }
  
  .cta-content {
    padding: 48px 24px;
  }
  
  .cta-features {
    flex-direction: column;
    gap: 12px;
  }
  
  .hero-cta .cta-button {
    width: 100%;
    justify-content: center;
  }
  
  /* Fix step images overflow on mobile */
  .step {
    overflow: hidden;
  }
  
  .step-visual {
    width: 100%;
    max-width: 100%;
    padding: 0;
    display: flex;
    justify-content: center;
  }
  
  .step-visual img {
    max-width: 90%;
    width: auto;
    height: auto;
  }
  
  .step.tip {
    padding: 20px 12px;
    overflow: hidden;
    margin-left: -12px;
    margin-right: -12px;
  }
  
  .step.tip .step-visual {
    padding: 0;
    display: flex;
    justify-content: center;
  }
  
  .step.tip .step-visual img {
    max-width: 85%;
    width: auto;
  }
}