:root {
  --bg: #eef4f8;
  --panel: rgba(255, 255, 255, 0.82);
  --line: rgba(15, 23, 42, 0.08);
  --text: #102033;
  --muted: #66758a;
  --accent: #0f766e;
  --accent-2: #0b5bd3;
  --danger: #b42318;
  --shadow: 0 30px 80px rgba(15, 23, 42, 0.12);
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro Text", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(255,255,255,.95), transparent 28%),
    radial-gradient(circle at bottom right, rgba(14,116,144,.18), transparent 32%),
    linear-gradient(180deg, #edf3f8, #dae6ef);
}
a { color: inherit; text-decoration: none; }
.wrap { width: min(1320px, calc(100vw - 40px)); margin: 24px auto 40px; }
.login {
  width: min(460px, calc(100vw - 40px));
  margin: 10vh auto;
  background: var(--panel);
  border: 1px solid rgba(255,255,255,.6);
  backdrop-filter: blur(24px);
  border-radius: 28px;
  padding: 32px;
  box-shadow: var(--shadow);
}
.eyebrow { color: var(--muted); text-transform: uppercase; letter-spacing: .16em; font-size: .78rem; margin-bottom: 12px; }
.hero {
  display: grid;
  grid-template-columns: 1.2fr .8fr;
  gap: 20px;
  margin-bottom: 20px;
}
.card, .nav, .result, .login {
  background: var(--panel);
  border: 1px solid rgba(255,255,255,.62);
  backdrop-filter: blur(24px);
  box-shadow: var(--shadow);
}
.card, .result, .nav { border-radius: 26px; }
.card { padding: 24px; }
.hero-art {
  min-height: 240px;
  background:
    linear-gradient(135deg, rgba(15, 118, 110, .76), rgba(11, 91, 211, .76)),
    url('https://images.unsplash.com/photo-1643185543608-5a0d0db8b27d?auto=format&fit=crop&w=1200&q=80') center/cover;
  color: white;
  position: relative;
  overflow: hidden;
}
.hero-art::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(5,15,25,.12), rgba(5,15,25,.5));
}
.hero-copy { position: relative; z-index: 1; max-width: 620px; }
.hero h1 { font-size: clamp(2.2rem, 4vw, 4rem); margin: 0 0 12px; letter-spacing: -.05em; }
.hero p { margin: 0; color: rgba(255,255,255,.88); max-width: 50ch; line-height: 1.55; }
.stat-grid, .grid {
  display: grid;
  gap: 18px;
}
.stat-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.stat {
  padding: 18px 20px;
  border-radius: 20px;
  background: rgba(255,255,255,.72);
  border: 1px solid var(--line);
}
.stat strong { display:block; font-size:1.9rem; letter-spacing:-.05em; }
.stat span { color: var(--muted); font-size:.9rem; }
.nav {
  padding: 12px;
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  align-items: center;
  margin-bottom: 20px;
}
.nav a, .nav button, button, input, select, textarea {
  font: inherit;
}
.nav a, .nav button, button {
  border: 0;
  cursor: pointer;
  border-radius: 16px;
  padding: 12px 16px;
  background: white;
  color: var(--text);
}
.nav .active { background: linear-gradient(180deg, #102033, #0f172a); color: white; }
form.inline { display:inline; }
label { display:block; font-size:.9rem; color: var(--muted); margin-bottom: 6px; }
input, select, textarea {
  width: 100%;
  padding: 13px 14px;
  border-radius: 16px;
  border: 1px solid var(--line);
  background: rgba(255,255,255,.94);
  color: var(--text);
}
textarea { min-height: 140px; resize: vertical; }
button.primary { background: linear-gradient(180deg, #0f766e, #115e59); color: white; }
button.secondary { background: linear-gradient(180deg, #0b5bd3, #0a4cb1); color: white; }
button.danger { background: linear-gradient(180deg, #c2410c, #9a3412); color: white; }
.actions { display:grid; gap:12px; }
.row { display:grid; gap:12px; grid-template-columns: repeat(3, minmax(0, 1fr)); }
.result, .flash { padding: 18px 20px; margin-bottom: 18px; }
.flash.ok { border-left: 4px solid var(--accent); }
.flash.err { border-left: 4px solid var(--danger); }
.mono { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; white-space: pre-wrap; word-break: break-word; }
.items { display:grid; grid-template-columns: repeat(4, minmax(0,1fr)); gap:12px; }
.item {
  border-radius: 18px;
  padding: 14px;
  background: rgba(255,255,255,.78);
  border: 1px solid var(--line);
}
.muted { color: var(--muted); }
@media (max-width: 980px) {
  .hero, .stat-grid, .grid, .row, .items { grid-template-columns: 1fr; }
}