@import url('https://fonts.googleapis.com/css2?family=Architects+Daughter&family=Inter:wght@400;500;600;700&family=Outfit:wght@500;600;700;800&display=swap');

:root {
  /* Premium modern theme variables (Light Mode Default) */
  --bg-pitch: #faf8f2;       /* Warm cream sketchbook paper */
  --bg-card: #ffffff;        /* Card paper background */
  --bg-card-hover: #fcfbf6;
  --bg-nav: rgba(250, 248, 242, 0.9);
  
  --pencil-border: rgba(30, 30, 36, 0.12);  /* Crisp subtle lines */
  --pencil-shadow: rgba(30, 30, 36, 0.04);
  --border-subtle: rgba(30, 30, 36, 0.08);
  --border-glow: #008abd;    /* Highlight accent color */
  
  --text-primary: #1e1e24;   /* Charcoal primary text */
  --text-secondary: #4a4a52; /* Lighter text */
  --text-muted: #888892;
  
  --color-primary: #008abd;  /* Colored pencil Blue */
  --color-primary-hover: #00669c;
  --color-accent: #00af87;   /* Colored pencil Teal */
  --color-highlight: #ff9f0a; /* Colored pencil Yellow/Orange */
  
  --gradient-brand: linear-gradient(135deg, #008abd 0%, #00af87 100%);
  --font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-title: "Outfit", sans-serif;
  --font-brand: "Architects Daughter", cursive, sans-serif;
  --transition-smooth: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  --card-shadow: 0 6px 20px rgba(30, 30, 36, 0.04), 0 1px 3px rgba(30, 30, 36, 0.02);
  --card-shadow-hover: 0 12px 28px rgba(30, 30, 36, 0.08), 0 2px 6px rgba(30, 30, 36, 0.03);
}

body.dark {
  /* Slate-colored chalkboard style dark theme overrides */
  --bg-pitch: #1e2025;       /* Slate blackboard background */
  --bg-card: #282b30;        /* Slightly lighter dark card */
  --bg-card-hover: #2e3238;
  --bg-nav: rgba(30, 32, 37, 0.9);
  
  --pencil-border: rgba(238, 241, 246, 0.12);  /* Chalky white lines */
  --pencil-shadow: rgba(0, 0, 0, 0.25);
  --border-subtle: rgba(238, 241, 246, 0.08);
  --border-glow: #20beff;    /* Glowing chalky blue */
  
  --text-primary: #eef1f6;
  --text-secondary: #bbc0c9;
  --text-muted: #727a85;
  
  --color-primary: #20beff;  /* Glowing Blue */
  --color-primary-hover: #7cd3ff;
  --color-accent: #00e6a8;   /* Glowing Teal */
  --card-shadow: 0 6px 20px rgba(0, 0, 0, 0.15), 0 1px 3px rgba(0, 0, 0, 0.1);
  --card-shadow-hover: 0 12px 28px rgba(0, 0, 0, 0.25), 0 2px 6px rgba(0, 0, 0, 0.15);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-pitch);
  /* Lined or graph paper effect styling */
  background-image: 
    linear-gradient(rgba(30, 30, 36, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(30, 30, 36, 0.05) 1px, transparent 1px);
  background-size: 20px 20px;
  color: var(--text-primary);
  min-height: 100vh;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  transition: background-color 0.4s ease, color 0.4s ease;
}

body.dark {
  background-image: 
    linear-gradient(rgba(238, 241, 246, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(238, 241, 246, 0.04) 1px, transparent 1px);
  background-size: 20px 20px;
}

/* Top Navigation Bar */
.nav-bar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 56px;
  background: var(--bg-nav);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-bottom: 2px solid var(--pencil-border);
  z-index: 1000;
  transition: var(--transition-smooth);
}

.nav-container {
  max-width: 1200px;
  height: 100%;
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  text-decoration: none;
  color: inherit;
}

.nav-logo {
  width: 26px;
  height: 26px;
  background: var(--color-primary);
  color: #ffffff;
  border: 2px solid var(--pencil-border);
  border-radius: 8px 3px 7px 4px / 4px 8px 3px 7px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition-smooth);
  filter: url(#sketch-filter);
}

.nav-logo .sail-icon {
  width: 14px;
  height: 14px;
  color: #ffffff;
}

.nav-name {
  font-family: var(--font-brand);
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: -0.015em;
}

.nav-menu {
  display: flex;
  gap: 24px;
  align-items: center;
}

@media (max-width: 768px) {
  .nav-menu {
    display: none;
  }
}

.nav-link {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-secondary);
  cursor: pointer;
  text-decoration: none;
  transition: var(--transition-smooth);
}

.nav-link:hover {
  color: var(--color-primary);
  text-decoration: underline;
  text-decoration-style: wavy;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

/* Theme Toggle Button */
.theme-toggle-btn {
  background: none;
  border: 1px solid var(--pencil-border);
  color: var(--text-secondary);
  width: 32px;
  height: 32px;
  border-radius: 8px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition-smooth);
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.02);
}

.theme-toggle-btn:hover {
  background-color: var(--bg-card);
  border-color: var(--pencil-border);
  color: var(--text-primary);
  transform: translateY(-1px);
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.06);
}

/* Theme toggle icon active state tweak */
body.dark .theme-toggle-btn:hover {
  background-color: var(--bg-card);
}

/* Hand-drawn Buttons */
.capsule-btn {
  font-family: var(--font-sans);
  font-size: 0.85rem;
  font-weight: 600;
  padding: 8px 18px;
  border: 1px solid transparent;
  border-radius: 99px;
  cursor: pointer;
  transition: var(--transition-smooth);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.04);
}

.capsule-btn.primary {
  background-color: var(--color-primary);
  color: #ffffff;
}

.capsule-btn.primary:hover {
  background-color: var(--color-primary-hover);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(0, 138, 189, 0.25);
}

.capsule-btn.secondary {
  background-color: transparent;
  color: var(--text-secondary);
  border-color: var(--pencil-border);
}

.capsule-btn.secondary:hover {
  background-color: var(--bg-card);
  color: var(--text-primary);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(30, 30, 36, 0.06);
}

/* Hero Section */
.hero-section {
  position: relative;
  background-color: var(--bg-pitch);
  padding: 110px 20px 0;
  text-align: center;
  overflow: hidden;
  z-index: 1;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(0, 138, 189, 0.08);
  border: 1px solid rgba(0, 138, 189, 0.15);
  color: #007bb0;
  font-size: 0.72rem;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: 6px;
  margin-bottom: 20px;
}

body.dark .hero-badge {
  background: rgba(32, 190, 255, 0.08);
  border-color: rgba(32, 190, 255, 0.15);
  color: #20beff;
}

.hero-title {
  font-size: clamp(2.2rem, 5.5vw, 3.8rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  max-width: 800px;
  margin: 0 auto 16px;
}

.hero-title span.accent {
  color: var(--color-primary);
}

.hero-subtitle {
  font-size: clamp(0.95rem, 2vw, 1.15rem);
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto 28px;
  line-height: 1.5;
  font-weight: 400;
}

.hero-actions {
  display: flex;
  justify-content: center;
  gap: 12px;
  margin-bottom: 30px;
}

@media (max-width: 480px) {
  .hero-actions {
    flex-direction: column;
    align-items: stretch;
    max-width: 240px;
    margin: 0 auto 30px;
  }
}


/* Sections Structure */
section {
  padding: 70px 20px;
}

.features-section, .workflow-section, .pricing-section {
  background-color: var(--bg-card); /* Pure white contrast block */
  background-image: 
    linear-gradient(rgba(30, 30, 36, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(30, 30, 36, 0.04) 1px, transparent 1px);
  background-size: 20px 20px;
  border-bottom: 2px solid var(--pencil-border);
  transition: background-color 0.4s ease, border-color 0.4s ease;
}

body.dark .features-section, body.dark .workflow-section, body.dark .pricing-section {
  background-image: 
    linear-gradient(rgba(238, 241, 246, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(238, 241, 246, 0.03) 1px, transparent 1px);
}

/* Sketch Ocean & Sailing Ship Container */
.sea-container {
  position: relative;
  width: 100%;
  height: 195px;
  margin-top: 20px;
  overflow: hidden;
  background: transparent;
  border-bottom: 2px solid var(--pencil-border);
}

.sea-container .waves-svg {
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 100%;
  height: 110px;
  min-height: 80px;
  max-height: 140px;
  z-index: 3;
  filter: url(#sketch-filter); /* Enforce hand-drawn sketch wobble */
}

.sea-container .boat-container {
  position: absolute;
  bottom: 45px;
  left: 50%;
  transform: translateX(-50%);
  width: 58px;
  height: 58px;
  z-index: 5;
  animation: boat-sailing 8s ease-in-out infinite;
  filter: url(#sketch-filter); /* Enforce hand-drawn sketch wobble */
}

.sea-container .boat-svg {
  width: 100%;
  height: 100%;
  display: block;
}

/* Ship elements styled as a sketch */
.sketch-hull {
  stroke: var(--pencil-border);
  stroke-width: 1.5px;
  fill: var(--bg-card); /* Theme adaptive wood background */
  transition: var(--transition-smooth);
}

.sketch-hull-dark {
  stroke: var(--pencil-border);
  stroke-width: 1.5px;
  fill: var(--bg-pitch);
  transition: var(--transition-smooth);
}

.sketch-mast {
  stroke: var(--pencil-border);
  stroke-width: 1.5px;
}

.sketch-sail {
  stroke: var(--pencil-border);
  stroke-width: 1.5px;
  fill: var(--bg-card);
  transition: var(--transition-smooth);
}

.sketch-jolly-roger {
  stroke: var(--pencil-border);
  fill: none;
}

/* Wave elements styled as sketchy curves with light hand-drawn fills */
.sketch-wave {
  stroke: var(--pencil-border);
  stroke-width: 1.5px;
  transition: fill 0.4s ease;
}

.sketch-wave.wave1 { fill: rgba(32, 190, 255, 0.08); } /* light blue color pencil fill */
.sketch-wave.wave2 { fill: rgba(0, 175, 135, 0.06); }  /* light teal/green pencil fill */
.sketch-wave.wave3 { fill: rgba(0, 138, 189, 0.1); }   /* blue pencil fill */
.sketch-wave.wave4 { fill: var(--bg-card); }           /* Matches section background */

body.dark .sketch-wave.wave1 { fill: rgba(32, 190, 255, 0.04); }
body.dark .sketch-wave.wave2 { fill: rgba(0, 175, 135, 0.03); }
body.dark .sketch-wave.wave3 { fill: rgba(0, 138, 189, 0.05); }

/* Parallax Wave Motion */
.parallax-waves > use {
  animation: wave-slide 20s cubic-bezier(0.55, 0.5, 0.45, 0.5) infinite;
}

.parallax-waves > use:nth-child(1) {
  animation-delay: -2s;
  animation-duration: 6s;
}

.parallax-waves > use:nth-child(2) {
  animation-delay: -3s;
  animation-duration: 9s;
}

.parallax-waves > use:nth-child(3) {
  animation-delay: -4s;
  animation-duration: 12s;
}

.parallax-waves > use:nth-child(4) {
  animation-delay: -5s;
  animation-duration: 16s;
}

@keyframes wave-slide {
  0% { transform: translate3d(85px, 0, 0); }
  100% { transform: translate3d(-90px, 0, 0); }
}

@keyframes boat-sailing {
  0% { transform: translateX(-50%) translateY(0) rotate(0deg); }
  50% { transform: translateX(-50%) translateY(-5px) rotate(4deg); }
  100% { transform: translateX(-50%) translateY(0) rotate(0deg); }
}

.preview-section {
  background-color: var(--bg-pitch); /* Alternating background canvas */
  border-bottom: 2px solid var(--pencil-border);
}

.section-header {
  text-align: center;
  margin-bottom: 48px;
}

.section-title {
  font-family: var(--font-title);
  font-size: clamp(1.8rem, 3.5vw, 2.5rem);
  font-weight: 700;
  letter-spacing: -0.01em;
  margin-bottom: 12px;
  color: var(--text-primary);
}

.section-subtitle {
  color: var(--text-secondary);
  font-size: 1rem;
  max-width: 550px;
  margin: 0 auto;
  line-height: 1.5;
}

/* Features timeline layout */
.features-timeline {
  position: relative;
  max-width: 1000px;
  margin: 40px auto 0;
  padding: 20px 0;
}

/* Central vertical line */
.timeline-line {
  position: absolute;
  left: 50%;
  top: 0;
  bottom: 0;
  width: 2px;
  background-color: var(--pencil-border);
  transform: translateX(-50%);
  z-index: 1;
}

/* Individual timeline item row */
.timeline-item {
  position: relative;
  width: 100%;
  margin-bottom: 60px;
  display: flex;
  justify-content: flex-start;
  align-items: center;
}

.timeline-item:last-child {
  margin-bottom: 0;
}

/* Alternating logic: shift card alignment */
.timeline-item.left {
  justify-content: flex-start;
}

.timeline-item.right {
  justify-content: flex-end;
}

/* Center node (marker) styling */
.timeline-node {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  width: 48px;
  height: 48px;
  background-color: var(--bg-pitch);
  border: 1px solid var(--pencil-border);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
  z-index: 5;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.04);
  transition: var(--transition-smooth);
}

.timeline-item:hover .timeline-node {
  background-color: var(--color-primary);
  color: #ffffff;
  transform: translate(-50%, -50%) scale(1.08);
  box-shadow: 0 6px 14px rgba(0, 138, 189, 0.15);
}

/* Horizontal connecting stems */
.timeline-stem {
  position: absolute;
  top: 50%;
  height: 2px;
  background-color: var(--pencil-border);
  width: calc(50% - 24px - 40px); /* half width - node radius - offset */
  z-index: 2;
  transform: translateY(-50%);
}

.timeline-item.left .timeline-stem {
  right: 50%;
  margin-right: 24px;
}

.timeline-item.right .timeline-stem {
  left: 50%;
  margin-left: 24px;
}

/* Sketch features cards */
.timeline-card {
  width: calc(50% - 64px);
  background-color: var(--bg-card);
  border: 1px solid var(--pencil-border);
  border-radius: 12px;
  padding: 24px;
  box-shadow: var(--card-shadow);
  transition: var(--transition-smooth);
  z-index: 3;
}

.timeline-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--card-shadow-hover);
  border-color: var(--color-primary);
}

.timeline-card .feature-title {
  font-family: var(--font-title);
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--text-primary);
}

.timeline-card .feature-desc {
  color: var(--text-secondary);
  font-size: 0.92rem;
  line-height: 1.45;
}

/* Responsive collapsing for smaller devices */
@media (max-width: 768px) {
  .features-timeline {
    padding-left: 50px;
    padding-right: 10px;
    margin-top: 20px;
  }
  
  .timeline-line {
    left: 24px;
    transform: none;
  }
  
  .timeline-item {
    justify-content: flex-start !important;
    margin-bottom: 40px;
  }
  
  .timeline-node {
    left: 24px;
    transform: translateY(-50%);
  }

  .timeline-item:hover .timeline-node {
    transform: translateY(-50%) scale(1.1);
  }
  
  .timeline-stem {
    left: 24px;
    width: 26px;
    margin-left: 24px !important;
    right: auto !important;
  }
  
  .timeline-card {
    width: 100%;
    margin-left: 50px;
  }
}

/* App Preview Visual Mockup Section */
.preview-section {
  max-width: 100%;
}

.preview-section .section-header {
  max-width: 1000px;
  margin: 0 auto 36px;
}

.mockup-wrapper {
  max-width: 1000px;
  margin: 0 auto;
  border-radius: 12px;
  padding: 1px;
}

.mockup-container {
  border-radius: 16px;
  overflow: hidden;
  background: var(--bg-card);
  border: 1px solid var(--pencil-border);
  box-shadow: var(--card-shadow);
  transition: var(--transition-smooth);
}

.mockup-container:hover {
  transform: translateY(-2px);
  box-shadow: var(--card-shadow-hover);
  border-color: var(--border-glow);
}

/* How It Works Steps */
.workflow-section {
  max-width: 100%;
}

.workflow-grid {
  max-width: 1000px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  gap: 32px;
}

@media (max-width: 768px) {
  .workflow-grid {
    flex-direction: column;
    align-items: center;
    gap: 24px;
  }
}

.workflow-step {
  flex: 1;
  text-align: center;
  max-width: 300px;
}

.step-num {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  margin: 0 auto 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  font-weight: 700;
  background-color: var(--bg-pitch);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  transition: var(--transition-smooth);
}

.workflow-step:nth-child(1) .step-num { border-color: var(--color-accent); color: var(--color-accent); }
.workflow-step:nth-child(2) .step-num { border-color: var(--color-highlight); color: var(--color-highlight); }
.workflow-step:nth-child(3) .step-num { border-color: var(--color-primary); color: var(--color-primary); }

.workflow-step:hover .step-num {
  transform: translateY(-2px);
  background-color: var(--bg-card);
}

.workflow-step h3 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--text-primary);
}

.workflow-step p {
  color: var(--text-secondary);
  font-size: 0.85rem;
  line-height: 1.45;
}

/* Pricing Grid Layout */
.pricing-grid {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  justify-content: center;
  align-items: stretch;
  gap: 24px;
}

@media (max-width: 768px) {
  .pricing-grid {
    flex-direction: column;
    align-items: center;
  }
}

.pricing-card {
  flex: 1;
  background-color: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 12px;
  padding: 32px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: var(--transition-smooth);
  box-shadow: var(--card-shadow);
  position: relative;
  max-width: 380px;
  width: 100%;
}

.pricing-card.premium {
  border-color: rgba(0, 138, 189, 0.4);
}

body.dark .pricing-card.premium {
  border-color: rgba(32, 190, 255, 0.4);
}

.pricing-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--card-shadow-hover);
  border-color: var(--color-primary);
}

.pricing-badge {
  position: absolute;
  top: 16px;
  right: 16px;
  background-color: var(--color-primary);
  color: #ffffff;
  font-size: 0.65rem;
  font-weight: 700;
  padding: 3px 8px;
  border-radius: 4px;
  text-transform: uppercase;
}

.pricing-header h3 {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 6px;
  color: var(--text-primary);
}

.pricing-header p {
  color: var(--text-secondary);
  font-size: 0.85rem;
  margin-bottom: 20px;
}

.price {
  font-size: 2.3rem;
  font-weight: 700;
  margin-bottom: 22px;
  display: flex;
  align-items: baseline;
  color: var(--text-primary);
}

.price span.period {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  margin-left: 4px;
}

.pricing-features {
  list-style: none;
  margin-bottom: 28px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.pricing-features li {
  font-size: 0.85rem;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 8px;
}

.pricing-features li svg {
  color: var(--color-accent);
  flex-shrink: 0;
}

.pricing-btn {
  width: 100%;
}

.pricing-btn .capsule-btn {
  width: 100%;
}

/* Clean Professional Footer */
.footer {
  border-top: 1px solid var(--border-subtle);
  background-color: var(--bg-card);
  padding: 48px 20px 24px;
  transition: background-color 0.4s ease, border-color 0.4s ease;
}

.footer-container {
  max-width: 1000px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 32px;
  margin-bottom: 32px;
}

@media (max-width: 768px) {
  .footer-container {
    flex-direction: column;
  }
}

.footer-brand {
  max-width: 280px;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 12px;
}

.footer-logo .sail-icon {
  width: 14px;
  height: 14px;
}

.footer-brand p {
  color: var(--text-secondary);
  font-size: 0.82rem;
  line-height: 1.5;
}

.footer-links {
  display: flex;
  gap: 48px;
}

@media (max-width: 480px) {
  .footer-links {
    flex-direction: column;
    gap: 24px;
  }
}

.links-column h4 {
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 16px;
  color: var(--text-muted);
}

.links-column ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.links-column a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.82rem;
  transition: var(--transition-smooth);
}

.links-column a:hover {
  color: var(--color-primary);
}

.footer-bottom {
  max-width: 1000px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.75rem;
  color: var(--text-muted);
  border-top: 1px solid var(--border-subtle);
  padding-top: 24px;
}

@media (max-width: 480px) {
  .footer-bottom {
    flex-direction: column;
    gap: 12px;
    text-align: center;
  }
}

/* Animations */
.animate-fade-in {
  opacity: 0;
  transform: translateY(15px);
  animation: fadeInUp 0.8s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.delay-1 { animation-delay: 0.1s; }
.delay-2 { animation-delay: 0.2s; }
.delay-3 { animation-delay: 0.3s; }
.delay-4 { animation-delay: 0.4s; }

@keyframes fadeInUp {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}