:root {
    --bg-dark: #0a0a10;
    --bg-light: #ffffff;
    --text-dark: #c9d1d9;
    --text-light: #24292e;
    --primary-dark: #3081f7;
    --primary-light: #0366d6;
    --card-dark: #161b22;
    --card-light: #f6f8fa;
    --border-dark: #30363d;
    --border-light: #d0d7de;

    --font-heading: 'Space Grotesk', sans-serif;
    --font-body: 'Roboto Mono', monospace;
    --transition-speed: 0.3s ease;
}
body { background-color: var(--bg-light); color: var(--text-light); font-family: var(--font-body); margin: 0; line-height: 1.7; }
body.dark-theme { background-color: var(--bg-dark); color: var(--text-dark); }
* { margin: 0; padding: 0; box-sizing: border-box; }
h1, h2, h3, h4 { font-family: var(--font-heading); font-weight: 700; }
a { color: var(--primary-light); text-decoration: none; transition: color var(--transition-speed); }
body.dark-theme a { color: var(--primary-dark); }
.container { max-width: 1100px; margin: 0 auto; padding: 0 1.5rem; }

#background-canvas { position: fixed; top: 0; left: 0; width: 100%; height: 100%; z-index: -1; }

.main-header { padding: 1rem 5%; position: sticky; top: 0; z-index: 1000; background-color: rgba(255, 255, 255, 0.85); backdrop-filter: blur(8px); border-bottom: 1px solid var(--border-light); }
body.dark-theme .main-header { background-color: rgba(10, 10, 16, 0.85); border-bottom-color: var(--border-dark); }
nav { display: flex; justify-content: space-between; align-items: center; }
.logo { font-size: 1.5rem; font-weight: 700; color: var(--text-light); }
body.dark-theme .logo { color: var(--text-dark); }
.nav-links { display: flex; align-items: center; gap: 1.5rem; }
.nav-link { font-weight: 500; padding: 0.5rem 1.5rem; border: 1px solid; border-radius: 50px; }
.nav-link:hover { background-color: var(--primary-light); color: white; }
body.dark-theme .nav-link:hover { background-color: var(--primary-dark); color: var(--bg-dark); }
.hamburger { display: none; }
.mobile-nav { display: none; }

.theme-toggle { background: var(--card-light); border: 1px solid var(--border-light); cursor: pointer; width: 48px; height: 26px; border-radius: 13px; position: relative; }
body.dark-theme .theme-toggle { background: var(--card-dark); border-color: var(--border-dark); }
.theme-toggle .thumb { width: 20px; height: 20px; background-color: var(--primary-light); border-radius: 50%; position: absolute; top: 2px; left: 2px; transition: transform 0.3s ease; }
body.dark-theme .theme-toggle .thumb { transform: translateX(22px); background-color: var(--primary-dark); }

.hero-section { min-height: 80vh; display: flex; flex-direction: column; justify-content: center; align-items: center; text-align: center; padding: 2rem; }
.hero-content h1 { font-size: clamp(2.5rem, 6vw, 4rem); margin-bottom: 1rem; }
.hero-content .reveal-text .char { display: inline-block; opacity: 0; transform: translateY(25px) rotate(5deg); transition: opacity 0.4s ease, transform 0.4s ease; }
.hero-content.is-visible .reveal-text .char { opacity: 1; transform: translateY(0) rotate(0); }
.hero-content p { font-size: clamp(1rem, 3vw, 1.2rem); max-width: 600px; margin: 0 auto; opacity: 0.8; }

section { padding: 5rem 0; }
section h2 { font-size: 2.2rem; text-align: center; margin-bottom: 1rem; }
.section-subtitle { font-size: 1.1rem; max-width: 600px; margin: 0 auto 3rem; text-align: center; opacity: 0.7; position: relative; z-index: 2; }

.process-grid, .proof-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 2rem; }
.proof-grid { display: flex; flex-wrap: wrap; justify-content: center; }

.process-step, .case-study { background-color: var(--card-light); border: 1px solid var(--border-light); padding: 2rem; border-radius: 8px; transition: transform 0.3s ease, box-shadow 0.3s ease; position: relative; }
body.dark-theme .process-step, body.dark-theme .case-study { background-color: var(--card-dark); border-color: var(--border-dark); }
.process-step:hover, .case-study:hover { transform: translateY(-8px); box-shadow: 0 15px 30px rgba(0,0,0,0.08); z-index: 1; }
body.dark-theme .process-step:hover, body.dark-theme .case-study:hover { box-shadow: 0 15px 30px rgba(0,0,0,0.2); }
.process-step h3, .case-study h3 { font-size: 1.25rem; margin-bottom: 1rem; transition: color 0.3s ease, text-shadow 0.3s ease; }
.process-step:hover h3, .case-study:hover h3 { color: var(--primary-light); text-shadow: 0 0 5px var(--primary-light); }
body.dark-theme .process-step:hover h3, body.dark-theme .case-study:hover h3 { color: var(--primary-dark); text-shadow: 0 0 5px var(--primary-dark); }

.contact-section { background-color: var(--card-light); }
body.dark-theme .contact-section { background-color: var(--card-dark); }
.contact-grid { display: grid; grid-template-columns: 1fr 1.5fr; gap: 3rem; align-items: start; }
.contact-details h3 { font-size: 1.5rem; margin-bottom: 1.5rem; }
.contact-item { display: flex; gap: 1rem; align-items: start; margin-bottom: 1.5rem; }
.contact-item .icon { font-size: 1.25rem; color: var(--primary-light); line-height: 1.4; }
body.dark-theme .contact-item .icon { color: var(--primary-dark); }
.contact-item h4 { font-size: 1rem; margin-bottom: 0.25rem; }
.contact-item p, .contact-item a { margin: 0; opacity: 0.8; font-size: 0.9rem; }
.contact-form h3 { font-size: 1.5rem; margin-bottom: 1.5rem; text-align: left; }
.contact-form input, .contact-form textarea { width: 100%; padding: 1rem; font-family: var(--font-body); background-color: var(--bg-light); border: 1px solid var(--border-light); color: var(--text-light); border-radius: 5px; }
body.dark-theme .contact-form input, body.dark-theme .contact-form textarea { background-color: var(--bg-dark); border-color: var(--border-dark); color: var(--text-dark); }
.btn { padding: 0.8rem 1.5rem; background-color: var(--primary-light); color: white; border: none; border-radius: 5px; font-weight: 700; cursor: pointer; justify-self: start; font-size: 0.9rem; }
body.dark-theme .btn { background-color: var(--primary-dark); color: var(--bg-dark); }

.animate-on-scroll { opacity: 0; transform: translateY(20px); transition: opacity 0.6s ease-out, transform 0.6s ease-out; }
.animate-on-scroll.is-visible { opacity: 1; transform: translateY(0); }

footer { text-align: center; padding: 2rem; font-size: 0.9rem; opacity: 0.7; }

@media (max-width: 768px) {
    .nav-links { display: none; }
    .hamburger { display: flex; flex-direction: column; justify-content: space-around; width: 25px; height: 25px; }
    .hamburger span { width: 100%; height: 2px; background: var(--text-light); border-radius: 1px; transition: all 0.3s linear; }
    body.dark-theme .hamburger span { background: var(--text-dark); }
    .mobile-nav { display: flex; position: fixed; top: 0; left: 0; width: 100%; height: 100%; background: var(--bg-light); z-index: 999; flex-direction: column; justify-content: center; align-items: center; transform: translateX(-100%); transition: transform 0.3s ease-in-out; }
    body.dark-theme .mobile-nav { background: var(--bg-dark); }
    .mobile-nav.is-active { transform: translateX(0); }
    .hamburger.is-active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
    .hamburger.is-active span:nth-child(2) { opacity: 0; }
    .hamburger.is-active span:nth-child(3) { transform: rotate(-45deg) translate(7px, -6px); }
    .contact-grid { grid-template-columns: 1fr; }
}