/* Base */
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
  background: #f2f4f7;
  color: #111827;
}
a { color: inherit; }

/* Header */
.main-header {
  background: #000;
  color: #fff;
}
.header-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 20px;
  gap: 16px;
}
.header-left {
  display: flex;
  align-items: center;
  gap: 12px;
}
.header-logo img {
  height: 44px;
  width: auto;
  display: block;
}
.header-right {
  text-align: right;
  line-height: 1.2;
}
.header-user {
  font-size: 16px;
  font-weight: 700;
}
.header-company {
  font-size: 13px;
  opacity: 0.9;
  margin-top: 4px;
}

/* Menu bar */
.main-nav {
  border-top: 1px solid rgba(255,255,255,0.12);
  padding: 10px 20px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.main-nav a {
  text-decoration: none;
  padding: 8px 10px;
  border-radius: 8px;
  color: rgba(255,255,255,0.92);
  font-weight: 600;
  font-size: 14px;
}
.main-nav a:hover {
  background: rgba(255,255,255,0.10);
}
.main-nav a.active {
  background: rgba(255,255,255,0.18);
}
.main-nav .logout {
  margin-left: auto;
  color: #ffb4b4;
}
.main-nav .logout:hover {
  background: rgba(255,180,180,0.12);
}

/* Content */
.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 22px 16px 40px;
}
.content {
  background: #fff;
  border-radius: 14px;
  padding: 22px;
  box-shadow: 0 6px 22px rgba(17,24,39,0.06);
}

/* Simple elements */
h1 { margin: 0 0 14px; font-size: 24px; }
h2 { margin: 20px 0 10px; font-size: 18px; }
p { margin: 10px 0; }

/* Messages */
.msg-ok {
  background: #ecfdf5;
  border: 1px solid #10b98133;
  color: #065f46;
  padding: 10px 12px;
  border-radius: 10px;
}
.msg-err {
  background: #fef2f2;
  border: 1px solid #ef444433;
  color: #7f1d1d;
  padding: 10px 12px;
  border-radius: 10px;
}

/* Footer */
.main-footer {
  background: #000;
  color: rgba(255,255,255,0.85);
  padding: 18px 20px;
  margin-top: 30px;
}
.footer-inner {
  max-width: 1100px;
  margin: 0 auto;
  text-align: center;
  font-size: 13px;
  line-height: 1.5;
}
.footer-links {
  margin-top: 8px;
  font-size: 12px;
  opacity: 0.9;
}
.footer-links a {
  color: rgba(255,255,255,0.85);
  text-decoration: underline;
  margin: 0 8px;
}