/* ========================================
   WisdomBranch.com - Stylesheet
   Brand Palette & Design System
   ======================================== */

/* ----------------------------------------
   CSS Variables - Brand Palette
   ---------------------------------------- */
:root {
  /* Primary Colors */
  --forest-green: #2D4A3E;
  --sage-green: #7A9E7E;
  
  /* Background Colors */
  --paper-white: #FAF8F5;
  --mist-stone: #E8E4DE;
  
  /* Accent Colors */
  --bark-brown: #5C4A3D;
  --muted-gold: #C9A227;
  --soft-clay: #C17A5C;
  
  /* Text Colors */
  --graphite: #2C2C2C;
  --graphite-light: #5A5A5A;
  --graphite-lighter: #8A8A8A;
  
  /* Semantic Mappings */
  --color-primary: var(--forest-green);
  --color-secondary: var(--sage-green);
  --color-background: var(--paper-white);
  --color-background-alt: var(--mist-stone);
  --color-accent: var(--muted-gold);
  --color-warm: var(--soft-clay);
  --color-text: var(--graphite);
  --color-text-secondary: var(--graphite-light);
  --color-text-muted: var(--graphite-lighter);
  --color-border: var(--mist-stone);
  
  /* Typography */
  --font-heading: 'Crimson Pro', Georgia, serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  
  /* Font Sizes */
  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.25rem;
  --text-2xl: 1.5rem;
  --text-3xl: 2rem;
  --text-4xl: 2.5rem;
  --text-5xl: 3.5rem;
  
  /* Spacing */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;
  
  /* Layout */
  --container-max: 1200px;
  --container-narrow: 800px;
  --nav-height: 72px;
  
  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 350ms ease;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.12);
  
  /* Border Radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-full: 9999px;
}

/* ----------------------------------------
   Base Styles & Reset
   ---------------------------------------- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--color-background);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img, svg {
  display: block;
  max-width: 100%;
}

a {
  color: inherit;
  text-decoration: none;
}

ul, ol {
  list-style: none;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

input {
  font-family: inherit;
}

/* ----------------------------------------
   Utility Classes
   ---------------------------------------- */
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-6);
}

.section {
  padding: var(--space-24) 0;
}

.section-title {
  font-family: var(--font-heading);
  font-size: var(--text-3xl);
  font-weight: 500;
  color: var(--color-primary);
  margin-bottom: var(--space-4);
  line-height: 1.2;
}

.section-intro {
  font-size: var(--text-lg);
  color: var(--color-text-secondary);
  max-width: 600px;
  margin-bottom: var(--space-12);
}

/* ----------------------------------------
   Buttons
   ---------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-3) var(--space-6);
  font-size: var(--text-sm);
  font-weight: 500;
  border-radius: var(--radius-md);
  transition: all var(--transition-base);
  text-align: center;
}

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

.btn-primary:hover {
  background-color: var(--bark-brown);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-secondary {
  background-color: transparent;
  color: var(--color-primary);
  border: 1.5px solid var(--color-primary);
}

.btn-secondary:hover {
  background-color: var(--color-primary);
  color: var(--color-background);
}

/* ----------------------------------------
   Navigation
   ---------------------------------------- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  background-color: rgba(250, 248, 245, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  z-index: 1000;
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition-base);
}

.nav.scrolled {
  border-color: var(--color-border);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-6);
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  font-weight: 500;
  color: var(--color-primary);
}

.logo-icon {
  width: 28px;
  height: 28px;
  color: var(--color-primary);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-8);
}

.nav-link {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-secondary);
  transition: color var(--transition-fast);
  position: relative;
}

.nav-link:hover,
.nav-link.active {
  color: var(--color-primary);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--color-secondary);
  transition: width var(--transition-base);
}

.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
}

.nav-cta {
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-sm);
}

.mobile-menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: var(--space-2);
}

.mobile-menu-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--color-primary);
  transition: all var(--transition-base);
}

/* ----------------------------------------
   Hero Section
   ---------------------------------------- */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: var(--nav-height);
  background: linear-gradient(180deg, var(--color-background) 0%, var(--mist-stone) 100%);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.65' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%' height='100%' filter='url(%23noise)'/%3E%3C/svg%3E");
  opacity: 0.03;
  pointer-events: none;
}

.hero .container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-16);
  align-items: center;
  position: relative;
  z-index: 1;
}

.hero-title {
  font-family: var(--font-heading);
  font-size: var(--text-5xl);
  font-weight: 500;
  color: var(--color-primary);
  line-height: 1.1;
  margin-bottom: var(--space-6);
}

.hero-subtitle {
  font-size: var(--text-xl);
  color: var(--color-text-secondary);
  max-width: 480px;
  margin-bottom: var(--space-8);
  line-height: 1.5;
}

.hero-ctas {
  display: flex;
  gap: var(--space-4);
  flex-wrap: wrap;
}

.hero-visual {
  display: flex;
  justify-content: center;
  align-items: center;
}

.wisdom-tree {
  width: 100%;
  max-width: 400px;
  height: auto;
  color: var(--color-primary);
}

.tree-trunk {
  animation: drawLine 2s ease-out forwards;
  stroke-dasharray: 300;
  stroke-dashoffset: 300;
}

.tree-branch {
  animation: drawLine 2s ease-out 0.5s forwards;
  stroke-dasharray: 200;
  stroke-dashoffset: 200;
}

.tree-root {
  animation: drawLine 2s ease-out 1s forwards;
  stroke-dasharray: 150;
  stroke-dashoffset: 150;
}

.idea-node {
  animation: fadeInScale 0.5s ease-out 1.5s forwards;
  opacity: 0;
  transform-origin: center;
}

@keyframes drawLine {
  to {
    stroke-dashoffset: 0;
  }
}

@keyframes fadeInScale {
  from {
    opacity: 0;
    transform: scale(0);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

/* ----------------------------------------
   What Is Section
   ---------------------------------------- */
.what-is {
  background-color: var(--color-background);
}

.what-is-content {
  max-width: var(--container-narrow);
  margin: 0 auto;
  text-align: center;
}

.what-is-text {
  font-size: var(--text-xl);
  color: var(--color-text-secondary);
  line-height: 1.7;
}

/* ----------------------------------------
   Roots Section
   ---------------------------------------- */
.roots {
  background-color: var(--color-background-alt);
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-6);
}

.card {
  background-color: var(--color-background);
  padding: var(--space-8);
  border-radius: var(--radius-lg);
  transition: all var(--transition-base);
  border: 1px solid transparent;
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-border);
}

.card-icon {
  width: 48px;
  height: 48px;
  color: var(--color-secondary);
  margin-bottom: var(--space-4);
}

.card-icon svg {
  width: 100%;
  height: 100%;
}

.card-title {
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  font-weight: 500;
  color: var(--color-primary);
  margin-bottom: var(--space-2);
}

.card-text {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  line-height: 1.6;
}

/* ----------------------------------------
   Branches Section
   ---------------------------------------- */
.branches {
  background-color: var(--color-background);
}

.two-column {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-6);
}

.branch-example {
  display: flex;
  align-items: flex-start;
  gap: var(--space-4);
  padding: var(--space-6);
  background-color: var(--color-background-alt);
  border-radius: var(--radius-lg);
  transition: all var(--transition-base);
}

.branch-example:hover {
  background-color: var(--color-background);
  box-shadow: var(--shadow-md);
}

.branch-connector {
  flex-shrink: 0;
  width: 60px;
  height: 40px;
  color: var(--color-secondary);
}

.branch-connector svg {
  width: 100%;
  height: 100%;
}

.branch-content {
  flex: 1;
}

.branch-source,
.branch-destination {
  display: inline-block;
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-primary);
  padding: var(--space-1) var(--space-3);
  background-color: var(--color-background);
  border-radius: var(--radius-sm);
}

.branch-arrow {
  margin: 0 var(--space-2);
  color: var(--color-secondary);
  font-weight: 600;
}

.branch-content p {
  margin-top: var(--space-3);
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  line-height: 1.6;
}

/* ----------------------------------------
   Leaves Section
   ---------------------------------------- */
.leaves {
  background-color: var(--color-background-alt);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-6);
}

.feature {
  text-align: center;
  padding: var(--space-8);
}

.feature-icon {
  width: 56px;
  height: 56px;
  margin: 0 auto var(--space-4);
  color: var(--color-primary);
}

.feature-icon svg {
  width: 100%;
  height: 100%;
}

.feature-title {
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  font-weight: 500;
  color: var(--color-primary);
  margin-bottom: var(--space-2);
}

.feature-text {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  line-height: 1.6;
}

/* ----------------------------------------
   Mission Section
   ---------------------------------------- */
.mission {
  background-color: var(--color-background);
}

.mission-list {
  max-width: 600px;
}

.mission-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-4);
  padding: var(--space-4) 0;
  font-size: var(--text-lg);
  color: var(--color-text);
  border-bottom: 1px solid var(--color-border);
}

.mission-item:last-child {
  border-bottom: none;
}

.mission-bullet {
  flex-shrink: 0;
  width: 24px;
  height: 24px;
  color: var(--color-secondary);
  margin-top: 2px;
}

.mission-bullet svg {
  width: 100%;
  height: 100%;
}

/* ----------------------------------------
   Future Section
   ---------------------------------------- */
.future {
  background-color: var(--color-background-alt);
}

.questions-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
}

.question-card {
  background-color: var(--color-background);
  padding: var(--space-8);
  border-radius: var(--radius-lg);
  transition: all var(--transition-base);
  border-left: 4px solid var(--color-secondary);
}

.question-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.question-number {
  display: block;
  font-family: var(--font-heading);
  font-size: var(--text-2xl);
  font-weight: 500;
  color: var(--color-secondary);
  margin-bottom: var(--space-4);
  opacity: 0.6;
}

.question-text {
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  font-weight: 500;
  color: var(--color-primary);
  margin-bottom: var(--space-3);
  line-height: 1.3;
}

.question-context {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  line-height: 1.6;
}

/* ----------------------------------------
   Join CTA Section
   ---------------------------------------- */
.join {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--bark-brown) 100%);
  padding: var(--space-24) 0;
}

.join-content {
  max-width: 600px;
  margin: 0 auto;
  text-align: center;
}

.join-title {
  font-family: var(--font-heading);
  font-size: var(--text-4xl);
  font-weight: 500;
  color: var(--color-background);
  margin-bottom: var(--space-4);
}

.join-text {
  font-size: var(--text-lg);
  color: rgba(250, 248, 245, 0.85);
  margin-bottom: var(--space-8);
  line-height: 1.6;
}

.join-form {
  display: flex;
  gap: var(--space-3);
  margin-bottom: var(--space-6);
  flex-wrap: wrap;
  justify-content: center;
}

.join-input {
  flex: 1;
  min-width: 280px;
  max-width: 360px;
  padding: var(--space-3) var(--space-4);
  font-size: var(--text-base);
  background-color: rgba(250, 248, 245, 0.1);
  border: 1.5px solid rgba(250, 248, 245, 0.3);
  border-radius: var(--radius-md);
  color: var(--color-background);
  transition: all var(--transition-base);
}

.join-input::placeholder {
  color: rgba(250, 248, 245, 0.6);
}

.join-input:focus {
  outline: none;
  border-color: var(--color-background);
  background-color: rgba(250, 248, 245, 0.15);
}

.join-btn {
  background-color: var(--color-background);
  color: var(--color-primary);
  font-weight: 600;
}

.join-btn:hover {
  background-color: var(--mist-stone);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.join-secondary {
  font-size: var(--text-sm);
  color: rgba(250, 248, 245, 0.7);
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: color var(--transition-fast);
}

.join-secondary:hover {
  color: var(--color-background);
}

/* ----------------------------------------
   Footer
   ---------------------------------------- */
.footer {
  background-color: var(--color-primary);
  padding: var(--space-12) 0;
}

.footer-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-4);
  text-align: center;
}

.footer-tagline {
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  color: var(--color-background);
  opacity: 0.9;
}

.social-links {
  display: flex;
  gap: var(--space-4);
}

.social-links a {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(250, 248, 245, 0.7);
  border: 1.5px solid rgba(250, 248, 245, 0.3);
  border-radius: var(--radius-full);
  transition: all var(--transition-base);
}

.social-links a:hover {
  color: var(--color-background);
  border-color: var(--color-background);
  background-color: rgba(250, 248, 245, 0.1);
}

.social-links svg {
  width: 18px;
  height: 18px;
}

.footer-copyright {
  font-size: var(--text-sm);
  color: rgba(250, 248, 245, 0.5);
}

/* ----------------------------------------
   Scroll Reveal Animation
   ---------------------------------------- */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.active {
  opacity: 1;
  transform: translateY(0);
}

/* ----------------------------------------
   Responsive Design
   ---------------------------------------- */
@media (max-width: 1024px) {
  .card-grid,
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .questions-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .two-column {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  :root {
    --text-5xl: 2.5rem;
    --text-4xl: 2rem;
    --text-3xl: 1.75rem;
    --space-24: 4rem;
  }
  
  .nav-links,
  .nav-cta {
    display: none;
  }
  
  .mobile-menu-toggle {
    display: flex;
  }
  
  .hero .container {
    grid-template-columns: 1fr;
    text-align: center;
    gap: var(--space-8);
  }
  
  .hero-title {
    font-size: var(--text-4xl);
  }
  
  .hero-subtitle {
    margin-left: auto;
    margin-right: auto;
  }
  
  .hero-ctas {
    justify-content: center;
  }
  
  .wisdom-tree {
    max-width: 280px;
  }
  
  .card-grid,
  .features-grid,
  .questions-grid {
    grid-template-columns: 1fr;
  }
  
  .join-form {
    flex-direction: column;
    align-items: center;
  }
  
  .join-input {
    width: 100%;
    max-width: 100%;
  }
  
  .join-btn {
    width: 100%;
    max-width: 100%;
  }
}

@media (max-width: 480px) {
  :root {
    --text-5xl: 2rem;
    --text-4xl: 1.75rem;
    --space-6: 1rem;
  }
  
  .hero-ctas {
    flex-direction: column;
    width: 100%;
  }
  
  .hero-ctas .btn {
    width: 100%;
  }
  
  .card,
  .question-card {
    padding: var(--space-6);
  }
}

/* ----------------------------------------
   Reduced Motion
   ---------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  
  html {
    scroll-behavior: auto;
  }
  
  .reveal {
    opacity: 1;
    transform: none;
  }
}

/* ----------------------------------------
   Focus Styles (Accessibility)
   ---------------------------------------- */
a:focus-visible,
button:focus-visible,
input:focus-visible {
  outline: 2px solid var(--color-secondary);
  outline-offset: 2px;
}

/* ----------------------------------------
   Print Styles
   ---------------------------------------- */
@media print {
  .nav,
  .hero-visual,
  .join-form,
  .social-links {
    display: none !important;
  }
  
  .section {
    padding: 2rem 0;
    page-break-inside: avoid;
  }
  
  body {
    font-size: 12pt;
    color: #000;
    background: #fff;
  }
}