/* Tanviks Technology Solutions – Global Styles
   Mobile-first. Palette tuned to logo. Subtle motion + premium finish. */
:root{
  --navy:#0B1F3B;
  --deep:#143B6E;
  --blue:#1E5AC8;
  --sky:#6EC1FF;
  --slate:#334155;
  --muted:#64748B;
  --soft:#E5E7EB;
  --bg:#F8FAFC;
  --white:#FFFFFF;
  --glass:rgba(255,255,255,0.65);
  --radius:16px;
  --shadow:0 8px 24px rgba(11,31,59,0.12);
  --shadow-soft:0 4px 16px rgba(20,59,110,0.10);
  --transition:160ms ease;
}

*{box-sizing:border-box}
html,body{margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, sans-serif;
  color:var(--slate);
  background:
    radial-gradient(1200px 800px at 110% -200px, rgba(30,90,200,0.10), transparent 60%),
    radial-gradient(1000px 600px at -100px 50%, rgba(20,59,110,0.10), transparent 60%),
    var(--bg);
  line-height:1.6;
}

/* Typography */
h1,h2,h3,h4{font-family:Poppins, Inter, sans-serif; color:var(--navy); margin:0 0 12px}
h1{font-weight:700; font-size: clamp(2rem, 3.5vw, 3rem); line-height:1.1}
h2{font-weight:700; font-size: clamp(1.5rem, 2.6vw, 2.2rem)}
h3{font-weight:600; font-size: clamp(1.125rem, 2vw, 1.5rem)}
p{margin:0 0 12px; color:var(--slate)}

/* Layout */
.container{width:min(1120px, 92%); margin:0 auto}
.section{padding:72px 0}
.section.tight{padding:48px 0}

/* Buttons */
.btn{
  display:inline-flex; align-items:center; gap:10px;
  padding:12px 18px; border-radius:12px; border:1px solid transparent;
  background:linear-gradient(180deg, var(--blue), #174FAF);
  color:white; font-weight:600; text-decoration:none; box-shadow:var(--shadow);
  transition:transform var(--transition), box-shadow var(--transition), opacity var(--transition);
}
.btn:hover{transform:translateY(-2px); box-shadow:0 12px 28px rgba(11,31,59,0.18)}
.btn.ghost{
  background:transparent; color:var(--blue); border-color:rgba(30,90,200,0.35); box-shadow:none;
}
.btn.ghost:hover{background:rgba(30,90,200,0.08)}

/* Header */
.header{
  position:sticky; top:0; z-index:40;
  backdrop-filter:saturate(160%) blur(10px);
  background:linear-gradient(180deg, rgba(255,255,255,0.85), rgba(255,255,255,0.65));
  border-bottom:1px solid rgba(12,18,28,0.06);
}
.nav{display:flex; align-items:center; justify-content:space-between; padding:14px 0}
.brand{display:flex; align-items:center; gap:12px; text-decoration:none}
.brand img{height:62px; width:auto}
.brand .wordmark{font-weight:700; color:var(--navy); letter-spacing:0.6px}
.brand .sub{color:var(--muted); font-size:12px; letter-spacing:1.2px}

.menu{display:flex; gap:20px; align-items:center}
.menu a{
  color:var(--slate); text-decoration:none; padding:8px 10px; border-radius:10px; font-weight:500;
  transition:background var(--transition), color var(--transition)
}
.menu a:hover{background:rgba(20,59,110,0.08); color:var(--navy)}
.menu .cta{margin-left:6px}

/* Mobile menu */
.burger{display:none; background:none; border:0}
@media (max-width: 860px){
  .menu{position:fixed; inset:64px 16px auto 16px; background:var(--glass); border:1px solid rgba(12,18,28,0.08);
    border-radius:14px; padding:12px; display:none; flex-direction:column; gap:8px; box-shadow:var(--shadow)}
  .menu.open{display:flex}
  .burger{display:inline-flex}
  .brand .sub{
    display: block;               /* was display: none */
    font-size: 10px;               /* slightly smaller for narrow headers */
    letter-spacing: 1px;
    color: var(--muted);
  }
}

/* Hero */
.hero{
  position:relative; overflow:hidden; background:
    radial-gradient(1200px 600px at 120% -20%, rgba(110,193,255,0.18), transparent 60%),
    linear-gradient(180deg, #FFFFFF, #F3F7FC);
}
.hero .orb{
  position:absolute; inset:auto -120px -120px auto; width:480px; height:480px;
  background:conic-gradient(from 30deg, rgba(30,90,200,0.08), rgba(20,59,110,0.16), transparent 65%);
  border-radius:50%; filter:blur(16px);
}
.hero-inner{display:grid; gap:24px; align-items:center; grid-template-columns:1.2fr 1fr}
@media (max-width: 980px){.hero-inner{grid-template-columns:1fr}}
.hero h1 span{color:var(--blue); text-shadow:0 1px 0 rgba(255,255,255,0.6)}
.kicker{color:var(--muted); font-weight:600; letter-spacing:1px; text-transform:uppercase; margin-bottom:8px}
.hero-card{
  background:var(--glass); border:1px solid rgba(12,18,28,0.08); border-radius:var(--radius); padding:18px;
  box-shadow:var(--shadow-soft); display:flex; gap:14px; align-items:flex-start
}

/* Feature grid */
.grid{display:grid; gap:20px}
.grid.cols-3{grid-template-columns:repeat(3, 1fr)}
.grid.cols-2{grid-template-columns:repeat(2, 1fr)}
@media (max-width: 980px){.grid.cols-3{grid-template-columns:repeat(2,1fr)}}
@media (max-width: 680px){.grid.cols-3,.grid.cols-2{grid-template-columns:1fr}}
.card{
  background:var(--white); border:1px solid rgba(12,18,28,0.06); border-radius:14px; padding:18px; box-shadow:var(--shadow-soft);
  transition:transform var(--transition), box-shadow var(--transition)
}
.card:hover{transform:translateY(-3px); box-shadow:0 14px 30px rgba(11,31,59,0.14)}
.icon{
  width:36px; height:36px; border-radius:10px; display:grid; place-items:center; color:white;
  background:linear-gradient(180deg, var(--blue), var(--deep))
}
.icon.alt{background:linear-gradient(180deg, var(--deep), #0B2E63)}

/* Section headers */
.section-head{display:flex; align-items:flex-end; justify-content:space-between; gap:16px; margin-bottom:18px}
.section-head p{color:var(--muted)}

/* List with checks */
.checklist{display:grid; gap:10px; margin:12px 0 0}
.checklist li{list-style:none; display:flex; gap:10px; align-items:flex-start}
.check{color:var(--blue)}

/* Wave divider */
.divider{display:block; width:100%; height:60px; background:url('assets/divider-wave.svg') center/cover no-repeat}

/* Footer */
.footer{background:#0A1830; color:#D7E2F1}
.footer a{color:#D7E2F1; text-decoration:none}
.footer .brand .wordmark{color:#E7F1FF}
.footer .grid p{color:#BCD1EA}

/* Utilities */
.m0{margin:0} .mt8{margin-top:8px} .mt16{margin-top:16px} .mt24{margin-top:24px}

.center{display:grid; place-items:center}