@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600&family=Outfit:wght@300;400;500;600;700;800&display=swap');

:root {
  /* Colors */
  --color-bg: #F7F5F0; /* Off-white/cream textured base */
  --color-bg-alt: #F1EFE9; /* Slightly darker cream for cards/sections */
  --color-text: #171717; /* Rich black */
  --color-text-muted: #555555;
  --color-accent: #000000;
  --color-border: #E8E5DF;
  --color-white: #FFFFFF;

  /* Typography */
  --font-heading: 'Outfit', sans-serif;
  --font-body: 'Inter', sans-serif;

  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 2rem;
  --spacing-lg: 4rem;
  --spacing-xl: 6rem;
  --spacing-xxl: 8rem;

  /* Border Radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 16px;

  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-normal: 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-slow: 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

[data-theme="dark"] {
  --color-bg: #111111;
  --color-bg-alt: #1A1A1A;
  --color-text: #F7F5F0;
  --color-text-muted: #A0A0A0;
  --color-accent: #FFFFFF;
  --color-border: #333333;
  --color-white: #1A1A1A;
}

[data-theme="dark"] .logo img {
  filter: invert(1) hue-rotate(180deg) brightness(1.5);
}

[data-theme="dark"] body::after {
  opacity: 0.15;
}

/* Theme Toggle Button */
.btn-theme-toggle {
  background: transparent;
  border: none;
  cursor: pointer;
  color: var(--color-text);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0.5rem;
  transition: color var(--transition-fast), transform var(--transition-fast);
}

.btn-theme-toggle:hover {
  color: var(--color-text-muted);
  transform: scale(1.1);
}

.icon-moon { display: none; }
[data-theme="dark"] .icon-sun { display: none; }
[data-theme="dark"] .icon-moon { display: block; }

/* =========================================
   RESET & FOUNDATION
========================================= */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

body {
  font-family: var(--font-body);
  background-color: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  position: relative;
}

/* Image background on its own GPU layer — prevents flicker on hover/interactions */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background-image: url('../img/background_light.jpg');
  background-size: cover;
  background-position: center;
  will-change: transform;
  transform: translateZ(0);
}

[data-theme="dark"] body::before {
  background-image: url('../img/background_dark.jpg');
}

/* =========================================
   TYPOGRAPHY
========================================= */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 500;
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--color-accent);
  margin-bottom: 0.6em;
}

h1 {
  font-size: clamp(3rem, 6vw, 5.5rem);
  font-weight: 600;
}

h2 {
  font-size: clamp(2rem, 4vw, 3.5rem);
}

h3 {
  font-size: clamp(1.5rem, 2.5vw, 2.5rem);
}

p {
  font-size: 1.125rem;
  color: var(--color-text-muted);
  max-width: 65ch;
  text-align: justify;
  text-align-last: left;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-fast);
}

ul, ol {
  list-style: none;
}

/* =========================================
   UTILITIES
========================================= */
.container {
  width: 100%;
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 5%;
}

.container-sm {
  max-width: 900px;
  margin: 0 auto;
  padding: 0 5%;
}

.section {
  padding: var(--spacing-xxl) 0;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

/* Hero section should fill screen too */
.hero.section {
  padding-top: 120px; /* account for fixed header */
}

.section-sm {
  padding: var(--spacing-lg) 0;
}

.mx-auto { margin-left: auto; margin-right: auto; }
.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }
.mb-lg { margin-bottom: var(--spacing-lg); }
.max-w-md { max-width: 600px; }
.max-w-lg { max-width: 800px; }

.text-center { text-align: center; }
.text-left { text-align: left; }

.uppercase {
  text-transform: none;
}

.bg-alt { background-color: var(--color-bg-alt); }
.bg-dark { background-color: var(--color-text); color: var(--color-bg); }
.bg-dark h1, .bg-dark h2, .bg-dark h3, .bg-dark .subtitle { color: var(--color-bg); }

/* Dark mode: bg-dark must stay truly dark (in dark mode --color-text becomes cream) */
[data-theme="dark"] .bg-dark {
  background-color: #0d0d0d;
  color: #F7F5F0;
}
[data-theme="dark"] .bg-dark h1,
[data-theme="dark"] .bg-dark h2,
[data-theme="dark"] .bg-dark h3,
[data-theme="dark"] .bg-dark .subtitle { color: #F7F5F0; }

/* Grids */
.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-xl);
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-md);
}

.align-center { align-items: center; }

/* Lists */
.features-list {
  list-style: none;
  padding: 0;
}
.features-list li {
  position: relative;
  padding-left: 1.5rem;
  margin-bottom: 0.5rem;
  color: var(--color-text);
  font-weight: 500;
}
.features-list li::before {
  content: "—";
  position: absolute;
  left: 0;
  color: var(--color-text-muted);
}

.subtitle {
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  color: var(--color-text);
  margin-bottom: var(--spacing-sm);
  display: inline-block;
}

/* Hero subtitle — larger prominent variant */
.hero-content .subtitle {
  font-size: clamp(1.1rem, 2.5vw, 1.6rem);
  font-weight: 500;
  letter-spacing: 0.01em;
  color: var(--color-text-muted);
  margin-bottom: 0.75rem;
}

/* =========================================
   CARDS & COMPONENTS
========================================= */
.card {
  background: var(--color-white);
  padding: var(--spacing-md);
  border: 1px solid var(--color-border);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}
.card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 30px rgba(0,0,0,0.03);
}
.card h3 { margin-bottom: 1rem; font-size: 1.5rem; }

/* Timeline */
.timeline {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--spacing-md);
  text-align: left;
}
.timeline-step {
  position: relative;
  padding-top: var(--spacing-md);
  border-top: 1px solid var(--color-border);
}
.step-num {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 300;
  color: var(--color-text-muted);
  margin-bottom: var(--spacing-xs);
}

/* =========================================
   MIND MAP OFFERS SYSTEM
========================================= */
.mindmap {
  display: flex;
  align-items: center;
  justify-content: center;
  max-width: 1100px;
  margin: 4rem auto 0;
  position: relative;
}

.mindmap-core-wrapper {
  position: relative;
  z-index: 2;
  margin-right: 3rem;
}

.mindmap-core-wrapper::after {
  content: ''; position: absolute;
  right: -1.5rem; top: 50%;
  width: 1.5rem; height: 2px;
  background: var(--color-border);
  transition: background 0.3s ease;
}

.mindmap-branches {
  display: flex;
  flex-direction: column;
  gap: 2rem;
  flex: 1;
  max-width: 500px;
  position: relative;
  margin-top: 0;
}

.mindmap-branch {
  position: relative;
}

/* Connectors */
.mindmap-branch::before, .mindmap-branch::after {
  content: ''; position: absolute;
  background: var(--color-border);
  transition: background 0.4s ease, box-shadow 0.4s ease;
}
.mindmap-branch::before {
  left: -1.5rem; top: 3.5rem; /* center with title height */
  width: 1.5rem; height: 2px;
}
.mindmap-branch::after {
  left: -1.5rem; width: 2px;
}

.mindmap-branch:first-child::after { top: 3.5rem; bottom: -2rem; }
.mindmap-branch:not(:first-child):not(:last-child):after { top: -2rem; bottom: -2rem; }
.mindmap-branch:last-child::after { top: -2rem; bottom: auto; height: 5.5rem; }

/* Hover states on branches */
.mindmap-branch:hover::before,
.mindmap-branch:hover::after {
  background: var(--color-accent);
  z-index: 10;
}

/* THE CARDS */
.mm-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: 1.5rem;
  padding: 1.5rem 2.5rem;
  cursor: pointer;
  transition: all 0.5s cubic-bezier(0.16, 1, 0.3, 1);
  position: relative;
  box-shadow: 0 4px 15px rgba(0,0,0,0.02);
  z-index: 2;
  text-align: left;
}

.mm-card-core {
  background: var(--color-text);
  color: var(--color-white);
  border: none;
  text-align: center;
  padding: 3rem 2.5rem;
  box-shadow: 0 20px 40px rgba(0,0,0,0.15);
  max-width: 380px;
  cursor: default;
}
.mm-card-core .subtitle { color: var(--color-accent); font-size: 0.9rem; display: block; margin-bottom: 0.8rem; font-weight: 500;}
.mm-card-core h2 { color: var(--color-white); margin: 0 0 1rem 0; font-size: 2.2rem; line-height: 1.1; }
.mm-card-core p { color: #ccc; margin: 0; font-size: 1rem; line-height: 1.6; }

.mm-card-branch h3 { 
  margin: 0; 
  font-size: 1.4rem; 
  color: var(--color-text); 
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.mm-card-branch h3::after {
  content: '+';
  font-size: 1.8rem;
  font-weight: 300;
  color: var(--color-text-muted);
  transition: transform 0.4s ease, color 0.4s ease;
}

.mm-card-desc {
  font-size: 1rem;
  color: var(--color-text-muted);
  margin-top: 0.5rem;
  line-height: 1.5;
  padding-right: 2rem;
}

.mm-card-content {
  max-height: 0;
  opacity: 0;
  overflow: hidden;
  transition: max-height 0.6s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.4s ease, margin-top 0.4s ease;
  margin-top: 0;
}
.mm-card-branch .features-list { margin-bottom: 1.5rem; }

/* HOVER INTERACTION */
.mm-card-branch:hover {
  border-color: var(--color-accent);
  box-shadow: 0 15px 35px rgba(0,0,0,0.08);
  transform: translateX(10px);
}
.mm-card-branch:hover h3::after {
  transform: rotate(45deg);
  color: var(--color-accent);
}
.mm-card-branch:hover .mm-card-content {
  max-height: 500px;
  opacity: 1;
  margin-top: 1.5rem;
}

/* Testimonials */
.testimonial-card {
  padding: var(--spacing-lg);
  border-left: 2px solid var(--color-accent);
  background: var(--color-white);
}
.quote {
  font-size: 1.25rem;
  font-style: italic;
  color: var(--color-text);
  margin-bottom: var(--spacing-sm);
}
.author { display: flex; flex-direction: column; }
.author .name { font-weight: 600; font-family: var(--font-heading); }
.author .role { font-size: 0.875rem; color: var(--color-text-muted); }

/* Forms */
.form-group {
  margin-bottom: var(--spacing-md);
  text-align: left;
}
.form-group label {
  display: block;
  font-weight: 500;
  margin-bottom: 0.5rem;
  font-family: var(--font-heading);
}
.form-control {
  width: 100%;
  padding: 1rem;
  background: transparent;
  border: 1px solid var(--color-border);
  font-family: var(--font-body);
  font-size: 1rem;
  transition: border-color var(--transition-fast);
}
.form-control:focus {
  outline: none;
  border-color: var(--color-accent);
}
textarea.form-control {
  resize: vertical;
  min-height: 120px;
}
.form-note {
  display: block;
  margin-top: 0.5rem;
  font-size: 0.875rem;
  color: var(--color-text-muted);
}
.form-note.accent {
  color: #D32F2F;
  font-weight: 500;
}

/* Hero Actions */
.hero-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
  margin-top: 2rem;
}

/* =========================================
   BUTTONS
========================================= */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 1rem 2rem;
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 500;
  text-decoration: none;
  border-radius: 0; /* Sharp corners for premium feel */
  transition: all var(--transition-normal);
  cursor: pointer;
  border: none;
  letter-spacing: 0.03em;
  position: relative;
  overflow: hidden;
  z-index: 1;
}

.btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--color-text);
  z-index: -1;
  transform: scaleY(0);
  transform-origin: bottom;
  transition: transform var(--transition-normal);
}

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

.btn-primary:hover::before {
  transform: scaleY(1);
  transform-origin: top;
  background-color: var(--color-text-muted);
}

.btn-outline {
  background-color: transparent;
  color: var(--color-accent);
  border: 1px solid var(--color-accent);
}

.btn-outline::before {
  background: var(--color-accent);
}

.btn-outline:hover {
  color: var(--color-white);
}

.btn-outline:hover::before {
  transform: scaleY(1);
  transform-origin: top;
}

/* =========================================
   HEADER / NAV
========================================= */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  padding: 2rem 0;
  z-index: 100;
  transition: padding var(--transition-normal), background-color var(--transition-normal);
}

.header.scrolled {
  padding: 1rem 0;
  background-color: rgba(247, 245, 240, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border);
}

[data-theme="dark"] .header.scrolled {
  background-color: rgba(17, 17, 17, 0.95);
  border-bottom-color: var(--color-border);
}

[data-theme="dark"] .header {
  color: var(--color-text);
}

/* Dark mode: footer stays dark */
[data-theme="dark"] .footer {
  background-color: #0a0a0a;
  color: #F7F5F0;
}

[data-theme="dark"] .footer-logo-img,
[data-theme="dark"] .footer-link,
[data-theme="dark"] .footer-bottom {
  color: #F7F5F0;
}

/* Dark mode: btn-primary (black button) becomes white-on-dark */
[data-theme="dark"] .btn-primary {
  background-color: #FFFFFF;
  color: #111111;
  border-color: #FFFFFF;
}

[data-theme="dark"] .btn-primary:hover {
  background-color: #e0e0e0;
  color: #111111;
}

/* Dark mode: btn-secondary (outlined) adapts */
[data-theme="dark"] .btn-secondary {
  border-color: #FFFFFF;
  color: #FFFFFF;
}

[data-theme="dark"] .btn-secondary:hover {
  background-color: #FFFFFF;
  color: #111111;
}


.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  display: flex;
  align-items: center;
}

.logo img {
  height: 56px;
  width: auto;
  display: block;
}

.nav-links {
  display: flex;
  gap: 3rem;
  align-items: center;
}

.nav-link {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text);
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 100%;
  height: 1px;
  background-color: var(--color-accent);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform var(--transition-normal);
}

.nav-link:hover::after {
  transform: scaleX(1);
  transform-origin: left;
}

/* Mobile Menu Button */
.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  z-index: 102;
}

.mobile-menu-btn span {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--color-accent);
  margin: 5px 0;
  transition: var(--transition-normal);
}

/* =========================================
   FOOTER
========================================= */
.footer {
  background-color: #111111;
  color: #F7F5F0;
  padding: var(--spacing-xl) 0 var(--spacing-md);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-xl);
}

.footer-logo-img {
  height: 52px;
  width: auto;
  display: block;
  margin-bottom: var(--spacing-sm);
  filter: invert(1); /* logo is dark — invert to white on dark footer */
}

.footer-desc {
  color: #AAAAAA;
  max-width: 300px;
}

.footer-heading {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  margin-bottom: var(--spacing-md);
  color: #F7F5F0;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.footer-link {
  color: #AAAAAA;
  transition: color var(--transition-fast);
}

.footer-link:hover {
  color: var(--color-white);
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: var(--spacing-md);
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: #AAAAAA;
  font-size: 0.875rem;
}

.footer-bottom-links {
  display: flex;
  gap: 2rem;
}

/* =========================================
   ANIMATIONS (Scroll Reveal)
========================================= */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 1s cubic-bezier(0.16, 1, 0.3, 1), transform 1s cubic-bezier(0.16, 1, 0.3, 1);
}

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

.delay-100 { transition-delay: 100ms; }
.delay-200 { transition-delay: 200ms; }
.delay-300 { transition-delay: 300ms; }
.delay-400 { transition-delay: 400ms; }

/* =========================================
   RESPONSIVE DESIGN
========================================= */
@media (max-width: 992px) {
  h1 { font-size: clamp(2.5rem, 5vw, 4rem); }
  h2 { font-size: clamp(2rem, 4vw, 3rem); }
  
  .grid-2 { grid-template-columns: 1fr; gap: var(--spacing-md); }
  .grid-3 { grid-template-columns: 1fr; gap: var(--spacing-md); }
  .timeline { grid-template-columns: 1fr 1fr; }
  
  .mindmap { flex-direction: column; align-items: stretch; gap: 3rem; }
  .mindmap-core-wrapper { margin-right: 0; margin-bottom: 1rem; }
  .mindmap-core-wrapper::after { display: none !important; }
  .mindmap-branch::before, .mindmap-branch::after { display: none !important; }
  .mm-card-branch:hover { transform: translateY(-5px); }
  .mm-card-core { max-width: 100%; }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
  }
}

@media (max-width: 768px) {
  .section { padding: var(--spacing-lg) 0; }
  .timeline { grid-template-columns: 1fr; }
  .reverse-mobile { flex-direction: column-reverse; display: flex; }

  /* Hero buttons stacked with gap */
  .hero-actions {
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    width: 100%;
  }
  .hero-actions .btn {
    width: 100%;
    max-width: 300px;
    text-align: center;
    justify-content: center;
  }

  
  .nav-links {
    position: fixed;
    top: 0;
    right: -100%;
    width: 100%;
    height: 100vh;
    height: -webkit-fill-available; /* iOS Safari fix */
    height: 100dvh;
    background-color: var(--color-bg);
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 2rem;
    transition: right var(--transition-normal);
    z-index: 101;
  }
  
  .nav-links.active {
    right: 0;
  }
  
  .nav-link {
    font-size: 1.5rem;
  }
  
  .mobile-menu-btn {
    display: block;
  }

  .mobile-menu-btn.active span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
  }
  .mobile-menu-btn.active span:nth-child(2) {
    opacity: 0;
  }
  .mobile-menu-btn.active span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
  }
  
  .footer-grid {
    grid-template-columns: 1fr;
  }
  .footer-bottom {
    flex-direction: column;
    gap: 1rem;
    text-align: center;
  }
}

/* =========================================
   BACK TO TOP BUTTON
========================================= */
#back-to-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--color-text);
  color: var(--color-bg);
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 500;
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 0.3s ease, transform 0.3s ease, background-color 0.2s ease;
  pointer-events: none;
  box-shadow: 0 4px 20px rgba(0,0,0,0.15);
}

#back-to-top.visible {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

#back-to-top:hover {
  opacity: 0.8;
}

[data-theme="dark"] #back-to-top {
  background: #FFFFFF;
  color: #111111;
}

[data-theme="dark"] #back-to-top:hover {
  background: #e0e0e0;
}

@media (max-width: 768px) {
  #back-to-top { bottom: 1.25rem; right: 1.25rem; width: 42px; height: 42px; }
}