:root {
  --ink: #0c1f24;
  --teal: #0d8a7c;
  --deep: #044f48;
  --mint: #7fd9c7;
  --paper: #f3f7f6;
  --line: rgba(4, 79, 72, 0.14);
  --coral: #e85d4c;
  --font: "Outfit", sans-serif;
  --display: "Fraunces", Georgia, serif;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font);
  color: var(--ink);
  background: linear-gradient(160deg, #e8f4f1, var(--paper) 40%, #dcece8);
}
.mark {
  margin: 0 0 0.4rem;
  font-family: var(--display);
  font-size: 1.8rem;
  color: var(--teal);
}
h1 { margin: 0 0 0.5rem; font-family: var(--display); font-weight: 600; font-size: 1.55rem; }
.lead { margin: 0 0 1rem; color: rgba(12,31,36,.72); }
.auth {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 1.5rem;
}
.panel {
  width: min(100%, 400px);
  padding: 1.5rem;
  background: rgba(255,255,255,.82);
  border: 1px solid var(--line);
  border-radius: 1rem;
  box-shadow: 0 20px 50px rgba(4,79,72,.18);
}
form { display: grid; gap: .55rem; margin-top: 1rem; }
label { font-weight: 600; font-size: .9rem; }
input {
  min-height: 2.7rem;
  padding: .55rem .8rem;
  border: 1px solid var(--line);
  border-radius: .5rem;
  font: inherit;
}
.btn {
  min-height: 2.7rem;
  border: 0;
  border-radius: .5rem;
  background: var(--mint);
  color: var(--deep);
  font: inherit;
  font-weight: 600;
  cursor: pointer;
}
.btn.ghost {
  background: transparent;
  border: 1px solid var(--line);
  color: var(--deep);
}
.msg { min-height: 1.3em; margin: .8rem 0 0; font-size: .9rem; color: var(--teal); }
.msg.err { color: var(--coral); }

.shell { display: grid; grid-template-columns: 220px 1fr; min-height: 100vh; }
.side {
  background: var(--deep);
  color: #fff;
  padding: 1.25rem 1rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}
.side .mark { color: var(--mint); }
.side nav { display: grid; gap: .35rem; flex: 1; }
.side nav button {
  text-align: left;
  background: transparent;
  border: 0;
  color: rgba(255,255,255,.85);
  font: inherit;
  padding: .55rem .7rem;
  border-radius: .45rem;
  cursor: pointer;
}
.side nav button.active,
.side nav button:hover { background: rgba(127,217,199,.18); color: #fff; }
.side .btn.ghost { color: #fff; border-color: rgba(255,255,255,.35); }
.main { padding: 1.25rem 1.5rem 2rem; }
.bar { display: flex; justify-content: space-between; align-items: baseline; gap: 1rem; margin-bottom: 1rem; }
.bar span { color: rgba(12,31,36,.6); font-size: .92rem; }
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: .75rem; }
.card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: .7rem;
  padding: .9rem;
}
.card b { display: block; font-size: 1.35rem; margin-top: .25rem; }
.card span { font-size: .8rem; color: rgba(12,31,36,.55); text-transform: uppercase; letter-spacing: .04em; }
table { width: 100%; border-collapse: collapse; background: #fff; border: 1px solid var(--line); border-radius: .7rem; overflow: hidden; }
th, td { text-align: left; padding: .65rem .75rem; border-bottom: 1px solid var(--line); font-size: .92rem; }
th { background: rgba(13,138,124,.08); font-size: .78rem; text-transform: uppercase; letter-spacing: .04em; }
.row-actions { display: flex; flex-wrap: wrap; gap: .4rem; }
.row-actions button { font-size: .82rem; min-height: 2rem; padding: .3rem .6rem; }
.toolbar { display: flex; flex-wrap: wrap; gap: .5rem; margin-bottom: .75rem; }
.toolbar input { min-width: 180px; }
.empty { color: rgba(12,31,36,.55); padding: 1rem 0; }

@media (max-width: 800px) {
  .shell { grid-template-columns: 1fr; }
  .side { flex-direction: row; flex-wrap: wrap; align-items: center; }
  .side nav { display: flex; flex-wrap: wrap; }
}