/* Base styles for the futuristic Linglear website */

/* Modern font */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;600;700&display=swap');

:root{
  --bg:#0b1220;
  --panel:#0f1730;
  --primary:#3a8bff;
  --accent:#9957ff;
  --text:#e8ecf3;
  --muted:#9da8c6;
  --radius:14px;
  --shadow:0 10px 30px rgba(0,0,0,.35);
  --t:.25s ease;
}

*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif;
  background:var(--bg);
  color:var(--text);
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}

/* Links & buttons */
a{color:var(--primary);text-decoration:none;transition:color var(--t)}
a:hover{color:var(--accent)}
.btn{
  display:inline-block;padding:16px 28px;border-radius:999px;
  background:linear-gradient(135deg,var(--primary),var(--accent));
  color:#fff;font-weight:600;letter-spacing:.3px;box-shadow:var(--shadow);
  transition:transform var(--t),filter var(--t);will-change:transform
}
.btn:hover{transform:translateY(-2px);filter:saturate(1.1)}

/* Layout helpers */
.container{max-width:1200px;margin:0 auto;padding:0 28px}
.section{padding:110px 0}
.section--tight{padding:80px 0}
.section-title{font-size:clamp(28px,3.4vw,42px);text-align:center;margin:0 0 18px}
.lede{max-width:820px;margin:8px auto 48px;color:var(--muted);text-align:center}
.grid{display:grid;gap:36px}
.grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}
@media (max-width:900px){.grid-2,.grid-3{grid-template-columns:1fr}}

/* Navbar */
.navbar{
  position:fixed;inset:0 0 auto;z-index:100;
  display:flex;justify-content:space-between;align-items:center;
  padding:18px 28px;background:rgba(15,23,48,.85);backdrop-filter:blur(8px);
  border-bottom:1px solid rgba(255,255,255,.06)
}
.logo{font-weight:700;letter-spacing:.5px;color:#fff}
.navbar ul{display:flex;gap:24px;list-style:none;margin:0;padding:0}
.navbar a{color:var(--muted);text-transform:uppercase;font-size:12px;letter-spacing:1px}
.navbar a:hover{color:#fff}

/* Hero */
.hero{
  height:86vh;min-height:640px;display:flex;align-items:center;justify-content:center;
  text-align:center;background-size:cover;background-position:center;position:relative;
  padding-top:70px
}
.hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(11,18,32,.35),rgba(11,18,32,.92) 70%);
}
.hero > .container{position:relative;z-index:1}
.hero h1{margin:0 0 10px;font-size:clamp(34px,6vw,64px);line-height:1.1}
.hero p{max-width:900px;margin:12px auto 28px;color:var(--muted);font-size:clamp(16px,2vw,19px)}

/* Feature cards */
.cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:32px}
@media (max-width:1000px){.cards{grid-template-columns:1fr 1fr}}
@media (max-width:700px){.cards{grid-template-columns:1fr}}
.card{
  background:linear-gradient(180deg,rgba(255,255,255,.03),rgba(255,255,255,.01));
  border:1px solid rgba(255,255,255,.06);border-radius:var(--radius);
  padding:28px;box-shadow:var(--shadow);transition:transform var(--t),box-shadow var(--t)
}
.card:hover{transform:translateY(-4px);box-shadow:0 14px 40px rgba(0,0,0,.45)}
.card h3{margin:0 0 8px;color:#bcd6ff}
.card p{margin:0;color:var(--muted)}

/* Big split section */
.split{
  background:radial-gradient(1200px 600px at 20% -10%,rgba(153,87,255,.25),transparent 60%),
             radial-gradient(900px 600px at 110% 10%,rgba(58,139,255,.18),transparent 50%);
  border-top:1px solid rgba(255,255,255,.06);
}

/* Contact form */
.form{
  background:var(--panel);border:1px solid rgba(255,255,255,.08);
  border-radius:var(--radius);padding:28px;box-shadow:var(--shadow)
}
.form label{display:block;margin:10px 0 6px;color:#cde0ff;font-size:14px}
.form input,.form textarea{
  width:100%;border:none;border-radius:10px;background:#172345;color:#fff;
  padding:14px 14px;font-size:15px
}
.form textarea{min-height:140px;resize:vertical}
.form button{margin-top:12px}

/* Roadmap timeline */
.timeline{position:relative;margin:40px 0;padding-left:26px}
.timeline::before{content:"";position:absolute;left:6px;top:0;bottom:0;width:2px;background:rgba(255,255,255,.12)}
.milestone{
  position:relative;margin:0 0 26px;padding:18px 18px 16px 18px;border-radius:12px;
  background:rgba(255,255,255,.03);border:1px solid rgba(255,255,255,.06)
}
.milestone::before{
  content:"";position:absolute;left:-10px;top:20px;width:14px;height:14px;border-radius:50%;
  background:linear-gradient(135deg,var(--primary),var(--accent));
  box-shadow:0 0 0 3px rgba(58,139,255,.25)
}
.milestone h4{margin:0 0 6px}
.footer{padding:36px 16px;text-align:center;color:var(--muted);background:rgba(15,23,48,.9)}