/* Base reset */
*,*::before,*::after{box-sizing:border-box}
html,body{height:100%}
body{margin:0;line-height:1.6;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
img,svg{display:block;max-width:100%}
a{color:inherit;text-decoration:none}

/* Color system */
:root{
  --bg-0:#0b1220;
  --bg-1:#0e1628;
  --bg-2:#111a2e;
  --ink-1:#f1f5ff;
  --ink-2:#9aa8c8;
  --blue-500:#2563eb;
  --blue-400:#3b82f6;
  --blue-300:#60a5fa;
  --red-500:#dc2626;
  --glass:rgba(17,26,46,.6);
  --border:rgba(133,168,255,.18);
  --shadow:0 10px 30px rgba(0,0,0,.45), inset 0 1px 0 rgba(255,255,255,.02);
  --radius:20px;
}

body{
  font-family: "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color:var(--ink-1);
  background:
    radial-gradient(1200px 800px at 10% 5%, rgba(59,130,246,.18), transparent 50%),
    radial-gradient(900px 600px at 85% 95%, rgba(220,38,38,.12), transparent 55%),
    linear-gradient(180deg, var(--bg-0), var(--bg-1));
  min-height:100vh;
  display:grid;
  place-items:center;
  overflow-x:hidden;
}

.frame{
  width:min(960px, 92%);
  background:linear-gradient(180deg, rgba(255,255,255,.04), rgba(255,255,255,.00)) , var(--glass);
  border:1px solid var(--border);
  border-radius:var(--radius);
  box-shadow:var(--shadow);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  position:relative;
}

header{
  display:flex; align-items:center; gap:14px; padding:22px 26px;
  border-bottom:1px solid var(--border);
}

.logo{
  width:100px; height:100px; border-radius:12px;
  background-image:url('images/working.png')
}

.brand{ font-weight:650; letter-spacing:.4px; }
.brand small{ display:block; color:var(--ink-2); font-weight:500; }

main{ display:grid; padding:36px 26px; gap:24px; text-align:center }

h1{ font-size:clamp(30px, 4vw, 46px); margin:0; }
p.lead{ color:var(--ink-2); margin:0 auto; max-width:60ch; font-size:clamp(15px, 1.7vw, 18px); }

.btn{
  display:inline-block; padding:14px 26px; border-radius:14px;
  font-weight:650; background:linear-gradient(180deg, var(--blue-400), var(--blue-500));
  color:#fff; box-shadow: 0 12px 30px rgba(37,99,235,.35);
  transition: all .2s ease;
  border:1px solid rgba(133,168,255,.25);
}
.btn:hover{ background:linear-gradient(180deg, var(--blue-300), var(--blue-400));
  box-shadow: 0 14px 36px rgba(37,99,235,.45), 0 0 0 3px rgba(220,38,38,.18);
}
.btn:focus-visible{
  outline:none;
  box-shadow: 0 0 0 4px rgba(220,38,38,.28), 0 12px 30px rgba(37,99,235,.35);
}

footer{ padding:18px 26px; color:var(--ink-2); font-size:13px; text-align:center; border-top:1px solid var(--border); }