:root {
 --color-background-primary: #121212;
 --color-background-secondary: #1E1E1E;
 --color-text-primary: rgba(255, 255, 255, 0.87);
 --color-text-secondary: rgba(255, 255, 255, 0.60);
 --color-accent-primary: #42A5F5;
 --color-accent-secondary: #00C49A;
 --color-border-primary: #444444;
 --cursor-border: #FFFFFF;
 --shadow-color: rgba(0, 0, 0, 0.2);
}

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

html {
 scroll-behavior: smooth;
}

body {
 font-family: 'Source Serif Pro', serif;
 font-size: 18px;
 line-height: 1.7;
 color: var(--color-text-primary);
 background-color: var(--color-background-primary);
 transition: background-color 0.3s ease, color 0.3s ease;
 cursor: none;
}

h1, h2, h3 {
 font-family: 'Inter', sans-serif;
 font-weight: 700;
 line-height: 1.2;
 letter-spacing: -0.02em;
 margin-top: 5px;
 margin-bottom: 5px;
}

h1 { font-size: 64px; }
h2 { font-size: 48px; }
h3 { font-size: 24px; font-weight: 600; letter-spacing: -0.01em; }

p {
 margin-bottom: 1rem;
 color: var(--color-text-secondary);
}

h1 + p {
 color: #fff;
 opacity: 0.8;
}

img {
 max-width: 100%;
 height: auto;
 display: block; 
 transition: transform 0.4s ease; 
}

.content-wrapper {
 width: 100%;
 overflow-x: hidden; 
}

main {
 width: 100%;
}

.features-container {
 max-width: 1200px;
 margin: 0 auto;
 padding: 4rem 2rem;
 display: flex;
 flex-direction: column;
 gap: 4rem;
}

.cursor {
 --cursor-size: 30px;
 position: fixed;
 width: var(--cursor-size);
 height: var(--cursor-size);
 border: 2px solid var(--cursor-border);
 border-radius: 50%;
 top: calc(var(--cursor-size) / -2);
 left: calc(var(--cursor-size) / -2);
 pointer-events: none;
 z-index: 9999;
 transition: transform 0.2s ease-out, width 0.2s ease-out, height 0.2s ease-out, border-radius 0.2s ease-out, background-color 0.2s ease, border-color 0.2s ease;
 mix-blend-mode: difference;
}

.cursor.hover-privacy {
 width: 50px;
 height: 50px;
 border-radius: 10px;
 border-color: var(--color-accent-secondary);
 background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='%23FFF' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M12 22s8-4 8-10V5l-8-3-8 3v7c0 6 8 10 8 10z'%3E%3C/path%3E%3C/svg%3E");
 background-size: 60%;
 background-repeat: no-repeat;
 background-position: center;
}

.hero-section {
 height: 100vh;
 display: flex;
 justify-content: center;
 align-items: center;
 text-align: center;
 position: relative;
 overflow: hidden;
 color: #fff;
}

#webgl-background {
 position: absolute;
 top: 0;
 left: 0;
 width: 100%;
 height: 100%;
 z-index: 0;
 background-color: #121212;
}

.hero-content {
 position: relative;
 z-index: 1;
 padding: 2rem;
 mix-blend-mode: difference;
}

.hero-section .subtitle { 
 font-size: 24px;
 color: #fff;
 margin: 2rem auto;
 max-width: 60ch;
}

.feature-card {
 display: grid;
 grid-template-columns: 1fr 1fr;
 gap: 4rem;
 align-items: center;
 text-align: left;
 background-color: var(--color-background-secondary);
 padding: 4rem;
 border-radius: 24px;
 border: 1px solid var(--color-border-primary);
 box-shadow: 0 10px 30px -10px var(--shadow-color);
}

.feature-content.reverse {
 order: 2;
}

.feature-visualization {
 width: 100%;
 background-color: rgba(255, 255, 255, 0.03); 
 border: 1px solid var(--color-border-primary);
 padding: 2rem; 
 border-radius: 20px;
 display: flex;
 align-items: center;
 justify-content: center;
 position: relative;
 overflow: hidden;
}

.feature-visualization img {
 width: 100%;
 height: 100%;
 object-fit: contain;
}

.visualization-label {
 position: absolute;
 bottom: 1rem;
 right: 1rem;
 font-size: 14px;
 color: var(--color-text-secondary);
 background-color: var(--color-background-primary);
 padding: 0.25rem 0.5rem;
 border-radius: 5px;
}

.final-cta-section {
 text-align: center;
 padding: 4rem 2rem;
}

.final-cta-section p {
 max-width: 65ch;
 margin-left: auto;
 margin-right: auto;
}

.animate-on-scroll {
 opacity: 0;
 transform: translateY(50px);
 transition: opacity 1s ease-out, transform 1s ease-out;
}

.animate-on-scroll.is-visible {
 opacity: 1;
 transform: translateY(0);
}

.hero-content.animate-on-scroll:nth-child(2) { transition-delay: 0.2s; }
.feature-card.animate-on-scroll:nth-child(2) { transition-delay: 0.1s; }
.feature-card.animate-on-scroll:nth-child(3) { transition-delay: 0.2s; }
.feature-card.animate-on-scroll:nth-child(4) { transition-delay: 0.3s; }

.main-footer-bottom {
 height: 80px;
}

.mode-link-btn {
 display: inline-flex;
 align-items: center;
 gap: 12px;
 background-color: var(--color-background-secondary);
 color: var(--color-text-primary);
 border: 1px solid var(--color-border-primary);
 border-radius: 12px;
 padding: 1rem 1.5rem;
 font-family: 'Inter', sans-serif;
 font-size: 16px;
 font-weight: 600;
 text-decoration: none;
 box-shadow: 0 4px 15px -5px rgba(0,0,0,0.2);
 transition: all 0.3s ease;
}

.mode-link-btn:hover {
 transform: translateY(-3px);
 border-color: var(--color-accent-primary);
 box-shadow: 0 8px 25px -5px rgba(0,0,0,0.3);
 color: var(--color-accent-primary);
}

.mode-link-btn .btn-icon, 
.mode-link-btn:hover .btn-icon {
 stroke: var(--color-text-secondary);
 transition: stroke 0.3s ease;
}

.mode-link-btn:hover .btn-icon {
 stroke: var(--color-accent-primary);
}

.mode-link-btn .chevron-icon {
 width: 20px;
 height: 20px;
 stroke: var(--color-text-secondary);
 margin-left: auto;
 transition: transform 0.3s ease, stroke 0.3s ease;
}

.mode-link-btn:hover .chevron-icon {
 transform: translateX(4px);
 stroke: var(--color-accent-primary);
}

.browserModeBtn {
 text-align: center; 
}

#adblock-img {
 transform: scale(1.5);
}

#fingerprint-img {
 transform: scale(1.6);
}

#network-img {
 transform: scale(1.3);
}

#focus-img {
 transform: scale(1.2);
}

@media (max-width: 992px) {
 h1 { font-size: 52px; }
 h2 { font-size: 40px; }
 
 .feature-card {
     grid-template-columns: 1fr;
     text-align: center;
     gap: 2rem;
     padding: 3rem;
 }

 .feature-content {
     max-width: 65ch; 
     margin: 0 auto;
 }

 .feature-content.reverse {
     order: 0; 
 }

 .feature-visualization {
     order: -1; 
     max-width: 500px; 
     margin: 0 auto;
 }
}

@media (max-width: 768px) {
 body {
     cursor: auto; 
     font-size: 16px;
 }

 .cursor {
     display: none; 
 }

 h1 { font-size: 40px; }
 h2 { font-size: 32px; }
 .hero-section .subtitle { font-size: 18px; }

 .features-container {
     padding: 3rem 1.5rem;
     gap: 3rem;
 }

 .feature-card {
     padding: 2rem;
 }
}

@media (max-width: 480px) {
 h1 { font-size: 32px; }
 h2 { font-size: 28px; }
 
 .features-container {
     padding: 2rem 1rem;
 }

 .feature-card {
     padding: 1.5rem;
 }
 
 .feature-visualization {
     padding: 1.5rem;
 }

 .mode-link-btn {
     padding: 0.8rem 1.2rem;
     font-size: 14px;
 }
}