:root {
  --primary: #0a2b5e;
  --accent: #e85d04;
  --bg: #f3f5f8;
  --text: #1f2937;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: Inter, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
}

.login-wrap {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 20px;
}
.login-card {
  width: min(540px, 100%);
  background: #fff;
  border-radius: 20px;
  padding: 24px;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.08);
  text-align: center;
}
.login-logo {
  width: 220px;
  max-width: 100%;
}

.layout {
  display: grid;
  grid-template-columns: 280px 1fr;
  min-height: 100vh;
}
.sidebar {
  background: var(--primary);
  color: #fff;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.brand img {
  width: 100%;
  border-radius: 12px;
  background: #fff;
  padding: 8px;
}
.brand h2 { margin: 10px 0; }
.nav {
  display: grid;
  gap: 8px;
  max-height: 60vh;
  overflow: auto;
}
.nav-btn {
  border: 0;
  background: #113b7d;
  color: #fff;
  border-radius: 10px;
  padding: 10px;
  text-align: left;
  cursor: pointer;
  display: flex;
  gap: 8px;
  align-items: center;
}
.nav-btn.active,
.nav-btn:hover { background: #1a4da1; }
.main { padding: 20px; }

h1 {
  margin: 0 0 14px;
  color: var(--primary);
  font-size: 24px;
}
.panel,
.card {
  background: #fff;
  border-radius: 14px;
  padding: 14px;
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.05);
}
.cards {
  display: grid;
  gap: 10px;
  grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
}
.card .value {
  font-size: 24px;
  font-weight: 700;
  color: var(--accent);
}
.grid-2 {
  display: grid;
  gap: 12px;
  grid-template-columns: repeat(2, 1fr);
}
.grid-form {
  display: grid;
  gap: 8px;
}
input, button {
  font: inherit;
}
input {
  width: 100%;
  border: 1px solid #d2d8e0;
  border-radius: 10px;
  padding: 10px;
}
button {
  cursor: pointer;
  border-radius: 10px;
  border: 0;
  padding: 10px 12px;
}
.btn-primary {
  background: var(--primary);
  color: #fff;
}
.btn-light {
  background: #edf2f7;
  color: #1f2937;
}
.btn-danger {
  background: #b42318;
  color: #fff;
}
.actions-row {
  display: flex;
  gap: 8px;
  margin-top: 10px;
}
.wrap { flex-wrap: wrap; }
.result-box {
  white-space: pre-wrap;
  max-height: 220px;
  overflow: auto;
  background: #0f172a;
  color: #d1fae5;
  border-radius: 10px;
  padding: 10px;
}
.touch-display {
  font-size: 24px;
  text-align: right;
}
.touch-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  margin-top: 8px;
}
.touch-key {
  background: #e6ebf2;
  padding: 14px;
  font-weight: 700;
}
.warn {
  background: #fff3cd;
  padding: 10px;
  border-radius: 8px;
}

@media (max-width: 980px) {
  .layout { grid-template-columns: 1fr; }
  .grid-2 { grid-template-columns: 1fr; }
}