:root {
  --bg: #ffffff;
  --text: #052630;
  --muted: #51636a;
  --accent: #0b5f6b;
  --accent-strong: #084d51;
  --focus: 3px solid #ffd54f;
  --radius: 10px;
  font-family: "Inter", sans-serif;
  line-height: 1.5;
}

body {
  margin: 0;
  background: #f8fbfb;
  color: var(--text);
}

/* Skip Navigation */
.skip-links {
  position: absolute;
  top: 0;
  left: 0;
}
.skip-links a,
.skip-menu {
  clip: rect(1px,1px,1px,1px);
  clip-path: inset(50%);
  position: absolute;
  height: 1px;
  width: 1px;
  overflow: hidden;
}
.skip-links:focus-within a,
.skip-links:focus-within .skip-menu {
  clip: auto;
  clip-path: none;
  position: static;
  height: auto;
  width: auto;
  background: var(--accent);
  color: #fff;
  padding: 0.5rem;
  border-radius: var(--radius);
  display: inline-block;
}

/* Header */
header {
  background: linear-gradient(90deg, var(--accent), var(--accent-strong));
  color: #fff;
  padding: 1rem;
}
.site-brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}
.brand-logo {
  width: 50px;
  height: 50px;
  display: grid;
  place-items: center;
  background: rgba(255, 255, 255, 0.2);
  border-radius: var(--radius);
  font-weight: 700;
}
nav[aria-label="Primary navigation"] {
  margin-top: 0.5rem;
  display: flex;
  gap: 1rem;
}
nav a {
  color: #fff;
  text-decoration: none;
  padding: 0.3rem 0.6rem;
  border-radius: 6px;
}
nav a:hover,
nav a:focus {
  background: rgba(255, 255, 255, 0.15);
}

/* Main */
main {
  max-width: 1100px;
  margin: 1.5rem auto;
  padding: 1rem;
}
.grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 1rem;
}
.card {
  background: #fff;
  border: 1px solid #e5f1f0;
  border-radius: var(--radius);
  padding: 1rem;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}
h1, h2, h3 {
  font-family: "Merriweather", serif;
}

/* Table */
table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 0.5rem;
}
th, td {
  text-align: left;
  padding: 0.5rem;
}
thead th {
  border-bottom: 2px solid #e6f2f2;
}
tbody td {
  border-bottom: 1px solid #f2f6f6;
}
.status-chip {
  padding: 0.15rem 0.45rem;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.85rem;
}
.status--ontrack { background: #e6faf6; color: #006d62; }
.status--delayed { background: #fff3e6; color: #a04a00; }
.status--complete { background: #effaf0; color: #06602a; }

/* Form */
form {
  display: block;
}
.row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
}
.field {
  display: flex;
  flex-direction: column;
  margin-bottom: 0.75rem;
}
label {
  font-weight: 600;
  margin-bottom: 0.25rem;
}
input, select, textarea {
  border: 1px solid #dbeeea;
  border-radius: 8px;
  padding: 0.5rem;
  font-size: 1rem;
}
textarea {
  min-height: 100px;
  resize: vertical;
}
button {
  background: var(--accent);
  color: #fff;
  padding: 0.6rem 1rem;
  border: none;
  border-radius: 8px;
  font-weight: 600;
}
button:hover,
button:focus {
  background: var(--accent-strong);
}

/* Accessibility focus */
a:focus, input:focus, button:focus, select:focus, textarea:focus {
  outline: var(--focus);
  outline-offset: 2px;
}

/* Footer */
footer {
  text-align: center;
  padding: 1rem;
  color: var(--muted);
  font-size: 0.9rem;
}

/* Floating decorative icon */
.floating-icon {
  position: fixed;
  bottom: 1rem;
  right: 1rem;
  color: var(--accent);
  opacity: 0.2;
}

/* Responsive */
@media (max-width: 900px) {
  .grid {
    grid-template-columns: 1fr;
  }
}