/* ===== DESIGN TOKENS ===== */
:root {
    --bg-primary: #000000;
    --bg-secondary: #0a0a0a;
    --bg-card: #0f0f0f;
    --bg-card-hover: #141414;
    --border: rgba(255, 255, 255, 0.08);
    --border-hover: rgba(255, 255, 255, 0.15);
    --text-primary: #ffffff;
    --text-secondary: #a1a1aa;
    --text-muted: #71717a;
    --accent: #c8ff00;
    --accent-dim: rgba(200, 255, 0, 0.15);
    --font-sans: 'Inter', -apple-system, sans-serif;
    --font-display: 'Outfit', sans-serif;
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 9999px;
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ===== RESET ===== */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    background: var(--bg-primary);
    color: var(--text-primary);
    font-family: var(--font-sans);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}
body.menu-open { overflow: hidden; }
a { text-decoration: none; color: inherit; }
button { background: none; border: none; cursor: pointer; color: inherit; font-family: inherit; }
img { max-width: 100%; display: block; }

/* ===== UTILITIES ===== */
.container { max-width: 1200px; margin: 0 auto; padding: 0 1.5rem; }

/* ===== BUTTONS ===== */
.btn {
    display: inline-flex; align-items: center; justify-content: center;
    padding: 0.7rem 1.6rem; border-radius: var(--radius-full);
    font-weight: 600; font-size: 0.9rem; transition: all var(--transition);
    white-space: nowrap; text-decoration: none;
}
.btn-primary { background: var(--text-primary); color: #000; }
.btn-primary:hover { background: #e0e0e0; transform: translateY(-1px); }
.btn-outline { background: transparent; color: var(--text-primary); border: 1px solid var(--border); }
.btn-outline:hover { border-color: var(--border-hover); background: rgba(255,255,255,0.03); }
.btn-large { padding: 0.9rem 2rem; font-size: 1rem; }
.btn-nav { padding: 0.55rem 1.2rem; font-size: 0.85rem; background: #fff; color: #000; }
.btn-nav:hover { background: #e0e0e0; }

/* ===== NAVBAR ===== */
.navbar {
    position: fixed; top: 0; left: 0; width: 100%; z-index: 1000;
    padding: 1rem 0; transition: all var(--transition);
}
.navbar.scrolled { background: rgba(0,0,0,0.8); backdrop-filter: blur(20px); border-bottom: 1px solid var(--border); }
.nav-container { max-width: 1200px; margin: 0 auto; padding: 0 1.5rem; display: flex; align-items: center; justify-content: space-between; }
.logo-text { font-family: var(--font-display); font-weight: 700; font-size: 1.3rem; letter-spacing: -0.02em; }
.nav-links { display: flex; gap: 2rem; }
.nav-links a { color: var(--text-secondary); font-size: 0.9rem; font-weight: 500; transition: color var(--transition); }
.nav-links a:hover { color: var(--text-primary); }
.hamburger { display: none; flex-direction: column; gap: 5px; padding: 4px; }
.hamburger span { display: block; width: 22px; height: 2px; background: #fff; border-radius: 2px; transition: all var(--transition); }
.hamburger.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.hamburger.active span:nth-child(2) { opacity: 0; }
.hamburger.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* Mobile menu */
.mobile-menu {
    position: fixed; top: 0; left: 0; width: 100%; height: 100vh;
    background: rgba(0,0,0,0.97); backdrop-filter: blur(20px);
    z-index: 999; display: flex; flex-direction: column;
    align-items: center; justify-content: center; gap: 2rem;
    opacity: 0; pointer-events: none; transition: opacity var(--transition);
}
.mobile-menu.active { opacity: 1; pointer-events: all; }
.mobile-link { font-size: 1.5rem; font-weight: 600; color: var(--text-secondary); transition: color var(--transition); }
.mobile-link:hover { color: #fff; }
.mobile-cta { margin-top: 1rem; }

/* ===== HERO ===== */
.hero {
    position: relative; min-height: 100vh; display: flex; align-items: center;
    justify-content: center; text-align: center; padding: 8rem 0 4rem; overflow: hidden;
}
.hero-glow {
    position: absolute; top: -30%; left: 50%; transform: translateX(-50%);
    width: 800px; height: 800px;
    background: radial-gradient(circle, rgba(200,255,0,0.06) 0%, rgba(200,255,0,0.02) 30%, transparent 70%);
    z-index: 0; pointer-events: none;
}
.hero-grid-bg {
    position: absolute; inset: 0; z-index: 0; pointer-events: none;
    background-image:
        linear-gradient(rgba(255,255,255,0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.02) 1px, transparent 1px);
    background-size: 60px 60px;
    mask-image: radial-gradient(ellipse 60% 50% at 50% 40%, black 20%, transparent 100%);
    -webkit-mask-image: radial-gradient(ellipse 60% 50% at 50% 40%, black 20%, transparent 100%);
}
.hero .container { position: relative; z-index: 1; }
.hero-content { max-width: 800px; margin: 0 auto; }
.hero-tagline { color: var(--text-secondary); font-size: 1.05rem; line-height: 1.7; margin-bottom: 2rem; max-width: 600px; margin-inline: auto; }

.hero-social-proof { display: flex; align-items: center; justify-content: center; gap: 0.75rem; margin-bottom: 2.5rem; }
.avatar-stack { display: flex; }
.avatar {
    width: 32px; height: 32px; border-radius: 50%; display: flex; align-items: center;
    justify-content: center; font-size: 0.7rem; font-weight: 700; color: #fff;
    margin-left: -8px; border: 2px solid #000;
}
.avatar:first-child { margin-left: 0; }
.proof-text { font-size: 0.85rem; color: var(--text-muted); }

.hero h1 {
    font-family: var(--font-display); font-size: clamp(3rem, 7vw, 5.5rem);
    font-weight: 800; line-height: 1.05; letter-spacing: -0.03em; margin-bottom: 0.5rem;
}
.hero-line-1 { display: block; }
.hero-line-2 { display: block; }
.hero-sub-heading {
    font-family: var(--font-display); font-size: clamp(3rem, 7vw, 5.5rem);
    font-weight: 800; line-height: 1.05; letter-spacing: -0.03em;
    color: var(--text-muted); margin-bottom: 2.5rem;
}
.accent-dot { color: var(--accent); }
.hero-actions { display: flex; justify-content: center; gap: 1rem; flex-wrap: wrap; }

/* ===== MARQUEE ===== */
.marquee-section { padding: 2.5rem 0; border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); overflow: hidden; }
.marquee-track { display: flex; width: max-content; }
.marquee-content {
    display: flex; align-items: center; gap: 2rem;
    animation: marquee 30s linear infinite; white-space: nowrap;
}
.marquee-item { font-size: 0.95rem; color: var(--text-muted); font-weight: 500; }
.marquee-dot { font-size: 0.4rem; color: var(--text-muted); opacity: 0.4; }
@keyframes marquee { 0% { transform: translateX(0); } 100% { transform: translateX(-50%); } }

/* ===== SECTION HEADERS ===== */
.section-header { text-align: center; margin-bottom: 4rem; }
.section-title { font-family: var(--font-display); font-size: clamp(2rem, 4vw, 3rem); font-weight: 700; letter-spacing: -0.02em; margin-bottom: 1rem; }
.section-subtitle { color: var(--text-secondary); font-size: 1.05rem; max-width: 550px; margin: 0 auto; }
.section-label { color: var(--text-secondary); font-size: 1rem; margin-bottom: 0.5rem; }

/* ===== PROCESS ===== */
.process { padding: 6rem 0; }
.process-steps { max-width: 700px; margin: 0 auto; display: flex; flex-direction: column; gap: 1.5rem; }
.step-card {
    display: flex; gap: 1.5rem; align-items: flex-start; padding: 1.5rem;
    border: 1px solid var(--border); border-radius: var(--radius-lg);
    background: var(--bg-card); transition: all var(--transition);
    opacity: 0; transform: translateY(20px);
}
.step-card.in-view { opacity: 1; transform: translateY(0); }
.step-card:hover { border-color: var(--border-hover); background: var(--bg-card-hover); }
.step-number {
    width: 44px; height: 44px; border-radius: 50%; flex-shrink: 0;
    background: var(--accent); color: #000; display: flex; align-items: center;
    justify-content: center; font-weight: 700; font-size: 1.1rem;
}
.step-content h3 { font-family: var(--font-display); font-size: 1.2rem; font-weight: 600; margin-bottom: 0.4rem; }
.step-content p { color: var(--text-secondary); font-size: 0.9rem; line-height: 1.6; }

/* ===== WHY US ===== */
.why-us { padding: 6rem 0; }
.why-us-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }
.why-card {
    padding: 2rem; border: 1px solid var(--border); border-radius: var(--radius-lg);
    background: var(--bg-card); transition: all var(--transition);
    opacity: 0; transform: translateY(20px);
}
.why-card.in-view { opacity: 1; transform: translateY(0); }
.why-card:hover { border-color: var(--border-hover); transform: translateY(-4px); }
.why-card-icon {
    width: 48px; height: 48px; border-radius: var(--radius-md);
    background: rgba(255,255,255,0.05); border: 1px solid var(--border);
    display: flex; align-items: center; justify-content: center; margin-bottom: 1.5rem;
    color: var(--accent);
}
.why-card h3 { font-family: var(--font-display); font-size: 1.15rem; font-weight: 600; margin-bottom: 0.5rem; }
.why-card p { color: var(--text-secondary); font-size: 0.9rem; line-height: 1.6; }

/* ===== CONVERSION ===== */
.conversion { padding: 6rem 0; }
.conversion-header { text-align: center; opacity: 0; transform: translateY(20px); transition: all 0.6s ease; }
.conversion-header.in-view { opacity: 1; transform: translateY(0); }
.conversion-title {
    font-family: var(--font-display); font-size: clamp(1.8rem, 3.5vw, 2.8rem);
    font-weight: 700; letter-spacing: -0.02em; line-height: 1.3;
    max-width: 700px; margin: 0 auto;
}
.conversion-highlight { display: block; color: var(--text-muted); margin-top: 0.25rem; }

/* ===== FEATURES ===== */
.features { padding: 3rem 0 6rem; }
.features-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }
.feature-card {
    padding: 2rem; border: 1px solid var(--border); border-radius: var(--radius-lg);
    background: var(--bg-card); transition: all var(--transition);
    opacity: 0; transform: translateY(20px);
}
.feature-card.in-view { opacity: 1; transform: translateY(0); }
.feature-card:hover { border-color: var(--border-hover); transform: translateY(-4px); }
.feature-icon {
    width: 48px; height: 48px; border-radius: var(--radius-md);
    background: rgba(255,255,255,0.05); border: 1px solid var(--border);
    display: flex; align-items: center; justify-content: center; margin-bottom: 1.5rem;
    color: var(--text-primary);
}
.feature-card h3 { font-family: var(--font-display); font-size: 1.1rem; font-weight: 600; margin-bottom: 0.5rem; }
.feature-card p { color: var(--text-secondary); font-size: 0.9rem; line-height: 1.6; }

/* ===== FAQ ===== */
.faq { padding: 6rem 0; }
.faq-list { max-width: 700px; margin: 0 auto; display: flex; flex-direction: column; gap: 0.75rem; }
.faq-item {
    border: 1px solid var(--border); border-radius: var(--radius-md);
    background: var(--bg-card); overflow: hidden; transition: all var(--transition);
    opacity: 0; transform: translateY(15px);
}
.faq-item.in-view { opacity: 1; transform: translateY(0); }
.faq-item.active { border-color: var(--border-hover); }
.faq-question {
    width: 100%; padding: 1.25rem 1.5rem; display: flex; align-items: center;
    justify-content: space-between; font-size: 0.95rem; font-weight: 600;
    text-align: left; transition: color var(--transition);
}
.faq-question:hover { color: var(--accent); }
.faq-chevron { transition: transform var(--transition); flex-shrink: 0; margin-left: 1rem; }
.faq-item.active .faq-chevron { transform: rotate(180deg); }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height 0.4s ease, padding 0.3s ease; }
.faq-item.active .faq-answer { max-height: 300px; }
.faq-answer p { padding: 0 1.5rem 1.25rem; color: var(--text-secondary); font-size: 0.9rem; line-height: 1.7; }

/* ===== TESTIMONIALS MARQUEE ===== */
.testimonial-marquee-wrapper {
    position: relative; width: 100vw; left: 50%; right: 50%; margin-left: -50vw; margin-right: -50vw;
    overflow: hidden; padding: 2rem 0; display: flex; flex-direction: column;
}
.testimonial-marquee-wrapper::before, .testimonial-marquee-wrapper::after {
    content: ""; position: absolute; top: 0; width: 15vw; height: 100%; z-index: 2; pointer-events: none;
}
.testimonial-marquee-wrapper::before { left: 0; background: linear-gradient(to right, var(--bg-primary), transparent); }
.testimonial-marquee-wrapper::after { right: 0; background: linear-gradient(to left, var(--bg-primary), transparent); }

.testimonial-marquee-track {
    display: flex; gap: 2rem; width: max-content;
    animation: scroll-testimonials 60s linear infinite;
}
.testimonial-marquee-track.reverse {
    animation: scroll-testimonials-reverse 60s linear infinite;
}
.testimonial-marquee-track:hover { animation-play-state: paused; }

@keyframes scroll-testimonials {
    to { transform: translateX(calc(-50% - 1rem)); }
}
@keyframes scroll-testimonials-reverse {
    from { transform: translateX(calc(-50% - 1rem)); }
    to { transform: translateX(0); }
}

.testimonial-card {
    width: 450px; flex-shrink: 0; border: 1px solid var(--border); border-radius: var(--radius-lg);
    padding: 2.5rem; background-color: var(--bg-card); transition: all var(--transition);
    display: flex; flex-direction: column; justify-content: space-between;
}
.testimonial-card:hover { border-color: var(--border-hover); background: var(--bg-card-hover); }
.testimonial-text { font-size: 1.05rem; font-style: italic; margin-bottom: 2rem; line-height: 1.6; color: var(--text-secondary); }
.client-info { display: flex; justify-content: space-between; align-items: flex-end; border-top: 1px solid var(--border); padding-top: 1.5rem; }
.client-name { font-weight: 600; font-size: 0.95rem; text-transform: uppercase; letter-spacing: 0.05em; color: var(--text-primary); }
.client-title { color: var(--text-muted); font-size: 0.85rem; margin-top: 0.15rem; }
.client-location { font-size: 0.8rem; font-weight: 500; color: #000; background: var(--text-secondary); padding: 0.3rem 0.7rem; border-radius: var(--radius-sm); opacity: 0.8; }

/* ===== PORTFOLIO MARQUEE ===== */
.portfolio-marquee-wrapper {
    position: relative; width: 100vw; left: 50%; right: 50%; margin-left: -50vw; margin-right: -50vw;
    overflow: hidden; padding: 2rem 0; display: flex; flex-direction: column;
}
.portfolio-marquee-wrapper::before, .portfolio-marquee-wrapper::after {
    content: ""; position: absolute; top: 0; width: 15vw; height: 100%; z-index: 2; pointer-events: none;
}
.portfolio-marquee-wrapper::before { left: 0; background: linear-gradient(to right, var(--bg-primary), transparent); }
.portfolio-marquee-wrapper::after { right: 0; background: linear-gradient(to left, var(--bg-primary), transparent); }

.portfolio-marquee-track {
    display: flex; gap: 2rem; width: max-content;
    animation: scroll-portfolio 45s linear infinite;
}
.portfolio-marquee-track.reverse {
    animation: scroll-portfolio-reverse 45s linear infinite;
}
.portfolio-marquee-track:hover { animation-play-state: paused; }

@keyframes scroll-portfolio {
    to { transform: translateX(calc(-50% - 1rem)); }
}
@keyframes scroll-portfolio-reverse {
    from { transform: translateX(calc(-50% - 1rem)); }
    to { transform: translateX(0); }
}

.portfolio-card {
    width: 450px; flex-shrink: 0; border: 1px solid var(--border); border-radius: var(--radius-lg);
    overflow: hidden; background-color: var(--bg-card); transition: all var(--transition);
    display: flex; flex-direction: column;
}
.portfolio-card:hover { border-color: var(--border-hover); transform: translateY(-4px); }
.portfolio-card img { width: 100%; height: auto; object-fit: cover; display: block; transition: transform var(--transition); }
.portfolio-card:hover img { transform: scale(1.03); }

/* ===== CTA ===== */
.cta { padding: 4rem 0 6rem; }
.cta-card {
    position: relative; overflow: hidden; border: 1px solid var(--border);
    border-radius: var(--radius-xl); padding: 4rem 2rem; text-align: center;
    background: var(--bg-card); opacity: 0; transform: translateY(20px); transition: all 0.6s ease;
}
.cta-card.in-view { opacity: 1; transform: translateY(0); }
.cta-glow {
    position: absolute; top: -50%; left: 50%; transform: translateX(-50%);
    width: 500px; height: 500px;
    background: radial-gradient(circle, rgba(200,255,0,0.06) 0%, transparent 70%);
    pointer-events: none;
}
.cta-content { position: relative; z-index: 1; max-width: 600px; margin: 0 auto; }
.cta-text { color: var(--text-secondary); font-size: 1rem; margin-bottom: 1.5rem; line-height: 1.7; }
.cta-heading { font-family: var(--font-display); font-size: clamp(1.5rem, 3vw, 2rem); font-weight: 700; letter-spacing: -0.02em; margin-bottom: 2rem; line-height: 1.3; }
.cta-accent { color: var(--accent); }

/* ===== FOOTER ===== */
footer { border-top: 1px solid var(--border); padding: 2rem 0; }
.footer-content { display: flex; justify-content: space-between; align-items: center; }
.footer-logo { font-family: var(--font-display); font-weight: 700; font-size: 1.1rem; }
.footer-copy { color: var(--text-muted); font-size: 0.8rem; margin-top: 0.25rem; }
.footer-link { color: var(--text-secondary); font-size: 0.85rem; font-weight: 500; transition: color var(--transition); }
.footer-link:hover { color: #fff; }

/* ===== SCROLL ANIMATION DELAYS ===== */
.step-card:nth-child(2) { transition-delay: 0.1s; }
.step-card:nth-child(3) { transition-delay: 0.2s; }
.step-card:nth-child(4) { transition-delay: 0.3s; }
.why-card:nth-child(2) { transition-delay: 0.1s; }
.why-card:nth-child(3) { transition-delay: 0.2s; }
.feature-card:nth-child(2) { transition-delay: 0.05s; }
.feature-card:nth-child(3) { transition-delay: 0.1s; }
.feature-card:nth-child(4) { transition-delay: 0.15s; }
.feature-card:nth-child(5) { transition-delay: 0.2s; }
.feature-card:nth-child(6) { transition-delay: 0.25s; }
.faq-item:nth-child(2) { transition-delay: 0.05s; }
.faq-item:nth-child(3) { transition-delay: 0.1s; }
.faq-item:nth-child(4) { transition-delay: 0.15s; }
.faq-item:nth-child(5) { transition-delay: 0.2s; }

/* ===== RESPONSIVE ===== */
@media (max-width: 900px) {
    .nav-links { display: none; }
    .btn-nav { display: none; }
    .hamburger { display: flex; }
    .why-us-grid { grid-template-columns: 1fr; }
    .features-grid { grid-template-columns: 1fr; }
    .hero { padding: 7rem 0 3rem; min-height: auto; }
    .hero h1, .hero-sub-heading { font-size: clamp(2.2rem, 8vw, 3.5rem); }
    .process, .why-us, .features, .faq, .conversion, .testimonials { padding: 4rem 0; }
    .footer-content { flex-direction: column; text-align: center; gap: 1rem; }
}
@media (max-width: 768px) {
    .testimonial-card { width: 320px; padding: 1.5rem; }
    .portfolio-card { width: 320px; }
}
@media (max-width: 600px) {
    .hero-actions { flex-direction: column; align-items: center; }
    .hero-social-proof { flex-direction: column; }
    .step-card { flex-direction: column; }
    .step-number { width: 36px; height: 36px; font-size: 0.95rem; }
}

/* ===== WHATSAPP INTEGRATION ===== */
.whatsapp-float {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 76px;
    height: 76px;
    background-color: rgba(10, 10, 10, 0.85);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    z-index: 1000;
    transition: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}
.whatsapp-float::before {
    content: '';
    position: absolute;
    width: 50px;
    height: 50px;
    background-color: #25d366;
    border-radius: 50%;
    z-index: 1;
    transition: all 0.3s ease;
    box-shadow: 0 2px 10px rgba(37, 211, 102, 0.3);
}
.whatsapp-float svg {
    width: 28px;
    height: 28px;
    color: #ffffff;
    fill: currentColor;
    z-index: 2;
    position: relative;
}
.whatsapp-float:hover {
    transform: scale(1.08) translateY(-5px);
    background-color: rgba(15, 15, 15, 0.95);
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.6), 0 0 20px rgba(37, 211, 102, 0.2);
}
.whatsapp-float:hover::before {
    background-color: #20b858;
    transform: scale(1.05);
}
@media (max-width: 600px) {
    .whatsapp-float {
        bottom: 1.5rem;
        right: 1.5rem;
        width: 64px;
        height: 64px;
    }
    .whatsapp-float::before {
        width: 42px;
        height: 42px;
    }
    .whatsapp-float svg {
        width: 24px;
        height: 24px;
    }
}

/* ===== PERFORMANCE & HARDWARE ACCELERATION ===== */
/* Promote heavy scrolling layouts to independent GPU layers to prevent CPU thrashing */
.marquee-content,
.portfolio-marquee-track,
.testimonial-marquee-track {
    will-change: transform;
    transform: translate3d(0, 0, 0);
    backface-visibility: hidden;
    -webkit-backface-visibility: hidden;
}

/* Modern Rendering Containment - bypasses browser styling and layouts for off-screen zones */
.process,
.why-us,
.conversion,
.portfolio-marquee-wrapper,
.testimonials,
.faq {
    content-visibility: auto;
    contain-intrinsic-size: 1px 600px; /* Maintains layout stability for scroll bars before rendering */
}