/* style.css - Modern responsive design for Integra Tech Solutions */
:root{
  --primary-1: #0d47a1;
  --primary-2: #1976d2;
  --accent: #ffb300;
  --muted: #6b7280;
  --glass: rgba(255,255,255,0.08);
}

*{box-sizing:border-box;margin:0;padding:0}
html,body{height:100%}
body{font-family:Roboto,system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif;color:#111;background:linear-gradient(180deg,#f7fbff,#eef6ff);line-height:1.6;scroll-behavior:smooth}

/* Container */
.container{width:90%;max-width:1100px;margin:0 auto}

/* Header */
header{position:fixed;top:0;left:0;width:100%;z-index:999;background:linear-gradient(90deg,#d1d5db, #0d47a1);color:#fff;backdrop-filter: blur(6px)}
.header-inner{display:flex;align-items:center;justify-content:space-between;padding:14px 0}
.brand{display:flex;align-items:center;gap:12px}
.logo{height:112px;width:auto;border-radius:6px;background:rgba(0, 0, 0, 0);padding:6px}
.brand-text h1{font-size:1.05rem;margin-bottom:2px}
.tag{font-size:0.8rem;color:var(--accent);opacity:0.95}

/* Nav */
nav{display:flex;gap:18px}
nav a{color:#fff;text-decoration:none;font-weight:500}
.menu-toggle{display:none;background:none;border:none;color:#fff;font-size:1.4rem}

/* Hero */
.hero{height:88vh;display:flex;align-items:center;justify-content:center;background-image:linear-gradient(180deg, rgba(13,71,161,0.45), rgba(25,118,210,0.25)), url('https://images.unsplash.com/photo-1498050108023-c5249f4df085?q=80&w=1600&auto=format&fit=crop&ixlib=rb-4.0.3&s=placeholder');background-size:cover;background-position:center;padding-top:72px}
.hero-overlay{width:100%;text-align:center;color:#fff;padding:40px}
.hero-content{max-width:900px;padding:28px;border-radius:12px;background:linear-gradient(180deg, rgba(255,255,255,0.03), rgba(255,255,255,0.01));box-shadow:0 8px 30px rgba(13,71,161,0.18)}
.hero-content h2{font-size:2.2rem;margin-bottom:10px;text-shadow:0 6px 18px rgba(0,0,0,0.35)}
.hero-content p{font-size:1.05rem;margin-bottom:18px;color:rgba(255,255,255,0.92)}

/* Buttons */
.btn{display:inline-block;padding:10px 18px;border-radius:8px;text-decoration:none;font-weight:600}
.btn.primary{background:var(--primary-1);color:#fff}
.btn{background:linear-gradient(90deg,var(--accent),#ff8f00);color:#111}

/* Sections */
.section{padding:84px 0}
.about-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;align-items:center}
.about-card img{width:100%;border-radius:12px;box-shadow:0 8px 20px rgba(17,24,39,0.08)}
.about-text h2{color:var(--primary-1);margin-bottom:12px}
.bullets{list-style:disc;margin-top:12px;margin-left:18px;color:var(--muted)}

/* Services */
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:24px}
.card{background:#fff;padding:14px;border-radius:12px;box-shadow:0 10px 26px rgba(17,24,39,0.06);transition:transform .25s,box-shadow .25s}
.card:hover{transform:translateY(-10px);box-shadow:0 18px 40px rgba(17,24,39,0.12)}
.card img{width:100%;height:150px;object-fit:cover;border-radius:8px;margin-bottom:12px}
.card h3{color:var(--primary-1)}

/* Contact */
.contact .contact-form{max-width:720px;margin:18px auto 0;display:flex;flex-direction:column;gap:12px}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}
input,textarea{padding:12px;border-radius:8px;border:1px solid #d1d5db;font-size:0.95rem}
input:focus,textarea:focus{outline:none;border-color:var(--primary-2);box-shadow:0 6px 18px rgba(25,118,210,0.08)}

/* Footer */
footer{padding:24px 0;background:linear-gradient(90deg,var(--primary-1),var(--primary-2));color:#fff;margin-top:40px}
.footer-inner{display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:0.95rem}
.socials a{color:rgba(255,255,255,0.9);text-decoration:none;margin-left:12px}

/* Animations */
.fade-in{opacity:0;transform:translateY(8px);animation:fadeIn .9s ease-out forwards}
.fade-up{opacity:0;transform:translateY(16px);animation:fadeUp .9s ease-out forwards}
@keyframes fadeIn{to{opacity:1;transform:none}}
@keyframes fadeUp{to{opacity:1;transform:none}}

/* Responsive */
@media (max-width:900px){
  .cards{grid-template-columns:repeat(2,1fr)}
  .about-grid{grid-template-columns:1fr}
  .logo{height:48px}
}
@media (max-width:640px){
  nav{display:none}
  .menu-toggle{display:block}
  .cards{grid-template-columns:1fr}
  .hero-content h2{font-size:1.6rem}
  .footer-inner{flex-direction:column;gap:8px;text-align:center}
}