/* Root tokens */
:root{
  --brand:#007BFF;
  --brand-ink:#0056b3;
  --accent:#FFA500;
  --accent-ink:#CC8400;
  --ink-900:#1a252f;
  --ink-700:#333;
  --ink-500:#555;
  --ink-400:#666;
  --ink-300:#888;
  --bg-100:#f4f4f4;
  --radius:8px;
  --shadow:0 4px 8px rgba(0,0,0,0.1);
}

/* Base */
*{box-sizing:border-box}
html,body{
  margin:0;
  font-family:Arial,Helvetica,sans-serif;
  background:var(--bg-100);
  scroll-behavior:smooth;
}
img{max-width:100%;height:auto;display:block}
.container{width:90%;max-width:1200px;margin:0 auto}
.section-pad{padding:80px 0}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}

/* Header */
.main-header{
  background:#fff;
  padding:15px 0;
  box-shadow:0 2px 4px rgba(0,0,0,.1);
  position:fixed;top:0;left:0;right:0;z-index:1000
}
.main-header .container{display:flex;align-items:center;gap:16px}
.logo{font-size:1.25rem;font-weight:700;color:var(--ink-700);text-decoration:none}
.main-nav ul{margin:0;padding:0;list-style:none;display:flex;gap:24px}
.main-nav a{text-decoration:none;color:var(--ink-500);font-weight:700;transition:color .2s}
.main-nav a:hover{color:var(--accent)}
.cta-button-nav{background:var(--brand);color:#fff;padding:10px 16px;border-radius:6px;text-decoration:none;font-weight:700}
.cta-button-nav:hover{background:var(--brand-ink)}
.nav-toggle{display:none;background:none;border:1px solid #e5e7eb;border-radius:6px;padding:6px 10px;font-size:1.1rem}

/* Hero */
.hero{
  min-height:90vh;
  padding-top:80px;
  display:flex;align-items:center;justify-content:center;text-align:center;color:#fff;
  background-image:linear-gradient(rgba(0,0,0,.6),rgba(0,0,0,.6)), url('images/hero.png');
  background-position:center;background-size:cover;background-repeat:no-repeat
}
.hero-content{max-width:800px;padding:20px}
.hero h1{font-size:3rem;margin:0 0 16px}
.hero p{font-size:1.1rem;margin:0 0 24px}
.cta-button{background:var(--accent);color:#fff;padding:14px 24px;border-radius:6px;text-decoration:none;font-weight:700;display:inline-block}
.cta-button:hover{background:var(--accent-ink)}
.cta-secondary{display:inline-block;margin-left:10px;text-decoration:none;font-weight:700}

/* Sections */
.services-section h2,.how-it-works-section h2,.portfolio-section h2,.cta-section h2,.testimonials-section h2{font-size:2.2rem;color:var(--ink-700);margin-bottom:40px}
.services-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:24px}
.service-card{background:#fff;padding:28px;border-radius:var(--radius);box-shadow:var(--shadow);transition:transform .2s, box-shadow .2s}
.service-card:hover{transform:translateY(-6px);box-shadow:0 8px 16px rgba(0,0,0,.15)}

.how-it-works-section{background:#fff;text-align:center}
.process-container{display:flex;justify-content:space-around;flex-wrap:wrap;gap:24px}
.process-step{max-width:320px}
.step-number{width:60px;height:60px;line-height:60px;border-radius:50%;background:var(--brand);color:#fff;font-size:1.4rem;font-weight:700;margin:0 auto 16px}

.portfolio-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:24px}
.portfolio-item{position:relative;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow)}
.portfolio-item img{transition:transform .4s}
.portfolio-item:hover img{transform:scale(1.05)}
.portfolio-overlay{position:absolute;inset:0;background:linear-gradient(rgba(0,0,0,.8),rgba(0,0,0,.2));color:#fff;display:flex;flex-direction:column;justify-content:flex-end;align-items:flex-start;padding:24px;opacity:0;transition:opacity .3s}
.portfolio-item:hover .portfolio-overlay{opacity:1}

.about-grid{display:grid;grid-template-columns:2fr 1fr;gap:24px}
.about-card{background:#fff;border-radius:var(--radius);padding:24px;box-shadow:var(--shadow)}
.about-list{margin:0;padding-left:18px}

/* Testimonials - Fade Carousel */
.testimonials-section{background:#fff;text-align:center}
.testimonials-carousel{position:relative;overflow:hidden;max-width:800px;margin:0 auto}
.testimonial-track{position:relative;display:block;transition:none}
.testimonial{position:absolute;left:0;right:0;top:0;opacity:0;pointer-events:none;transform:scale(.985);transition:opacity .6s ease, transform .6s ease}
.testimonial.active{opacity:1;pointer-events:auto;position:relative}
@media (prefers-reduced-motion: reduce){
  .testimonial{transition:none}
}

/* CTA / Contact */
.cta-section{background:#2c3e50;color:#fff;text-align:center}
.cta-section p{max-width:640px;margin:0 auto 20px}
.contact-actions{margin-bottom:16px}
.contact-form{max-width:640px;margin:24px auto 0;text-align:left}
.form-row{display:flex;flex-direction:column;margin-bottom:12px}
.form-row label{font-weight:700;margin-bottom:6px}
.form-row input,.form-row textarea{padding:12px;border-radius:6px;border:1px solid #e5e7eb}

/* Footer */
.main-footer{background:var(--ink-900);color:#ccc;padding:60px 0 20px}
.footer-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:24px;margin-bottom:24px}
.footer-col h3{color:#fff;font-size:1.1rem;margin:0 0 12px}
.footer-col a{color:#aaa;text-decoration:none}
.footer-col a:hover{color:var(--accent)}
.footer-bottom{text-align:center;padding-top:16px;border-top:1px solid #333}

/* Back to top */
.back-to-top{
  position:fixed;right:16px;bottom:16px;border:none;border-radius:999px;padding:10px 12px;
  box-shadow:var(--shadow);background:#fff;cursor:pointer;display:none;z-index:1500
}
.back-to-top.show{display:block}

/* Sticky mobile button */
.sticky-quote-btn{
  display:none;
  position:fixed;
  bottom:20px;left:50%;transform:translateX(-50%);
  background:var(--brand);color:#fff;padding:14px 24px;
  border-radius:999px;text-decoration:none;font-weight:700;
  box-shadow:var(--shadow);z-index:2000
}
@media(max-width:768px){
  .sticky-quote-btn{display:block}
}

/* Anchor offset for fixed header */
section[id]{scroll-margin-top:90px}

/* Responsive nav */
@media (max-width: 900px){
  .main-header .container{justify-content:space-between}
  .nav-toggle{display:block}
  .main-nav{position:absolute;top:64px;left:0;right:0;background:#fff;box-shadow:var(--shadow);transform:translateY(-120%);transition:transform .2s}
  .main-nav.open{transform:translateY(0)}
  .main-nav ul{flex-direction:column;padding:12px}
  .cta-button-nav{display:none}
  .about-grid{grid-template-columns:1fr}
}