:root {
  --bg: #11161d;
  --panel: #1b232d;
  --panel-2: #24303e;
  --text: #e4ebf3;
  --muted: #97a8bb;
  --ok: #4fb59a;
  --warn: #d08f44;
  --danger: #c25858;
  --line: #334355;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: "IBM Plex Sans", "Segoe UI", sans-serif;
  color: var(--text);
  background: radial-gradient(circle at 0% 0%, #1d2732, #11161d 55%);
}
.topbar {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
  justify-content: space-between;
  padding: 12px 18px;
  border-bottom: 1px solid var(--line);
  background: rgba(17, 22, 29, 0.9);
}
.topbar nav { display: flex; flex-wrap: wrap; gap: 8px; }
.topbar a { color: var(--text); text-decoration: none; }
.upload-form { display: flex; gap: 8px; align-items: center; }

.nav-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 36px;
  padding: 8px 12px;
  border: 1px solid var(--line);
  background: var(--panel);
  color: var(--text);
  border-radius: 8px;
  text-decoration: none;
  line-height: 1;
}

.nav-btn:hover {
  background: var(--panel-2);
}

.nav-btn:focus-visible {
  outline: 2px solid var(--muted);
  outline-offset: 2px;
}

.nav-btn.active {
  background: var(--panel-2);
  border-color: var(--muted);
}

.nav-btn.nav-btn-primary {
  background: #2f5f8a;
}

.nav-btn.nav-btn-primary:hover {
  background: #2f5f8a;
  filter: brightness(1.08);
}
main { padding: 18px; }
.panel { background: var(--panel); border: 1px solid var(--line); border-radius: 8px; padding: 14px; margin-bottom: 16px; }
.kpis { display: grid; grid-template-columns: repeat(auto-fit, minmax(170px, 1fr)); gap: 12px; margin-bottom: 16px; }
.kpis article { background: var(--panel-2); border: 1px solid var(--line); border-radius: 8px; padding: 10px; }
.kpis h3 { margin: 0 0 8px 0; color: var(--muted); font-size: 0.9rem; }
.kpis p { margin: 0; font-size: 1.2rem; font-weight: 600; }
.filters { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 8px; margin-bottom: 12px; }
input, button {
  border: 1px solid var(--line);
  background: #0f141b;
  color: var(--text);
  border-radius: 6px;
  padding: 8px;
}
button { background: #2f5f8a; cursor: pointer; }
button.import-btn.busy { opacity: 0.6; }
table { width: 100%; border-collapse: collapse; }
th, td { border-bottom: 1px solid var(--line); text-align: left; padding: 8px; font-size: 0.9rem; }
th { color: var(--muted); }
.import-result { margin-bottom: 12px; }
.card { background: var(--panel); border: 1px solid var(--line); border-radius: 8px; padding: 10px; }

body.auth-login {
  min-height: 100vh;
}

.auth-shell {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px 16px;
  background: radial-gradient(circle at 50% 14%, rgba(47, 95, 138, 0.22), rgba(17, 22, 29, 0) 58%);
}

.auth-stack {
  position: relative;
  width: min(380px, calc(100vw - 32px));
  display: grid;
  place-items: center;
}

.auth-brand {
  position: absolute;
  left: 50%;
  bottom: calc(100% + 28px);
  transform: translateX(-50%);
  width: max-content;
  max-width: calc(100vw - 32px);
  text-align: center;
}

.auth-brand h1 {
  margin: 0;
  font-size: clamp(1.5rem, 2.2vw, 2rem);
}

.auth-card {
  width: 100%;
  margin: 0;
  padding: 22px;
  border-color: rgba(151, 168, 187, 0.35);
  box-shadow: 0 16px 36px rgba(0, 0, 0, 0.35);
}

.auth-card h2 {
  margin: 0 0 14px;
  text-align: center;
}

.auth-card form p {
  margin: 0 0 12px;
}

.auth-card form p:last-child {
  margin-bottom: 0;
}

.auth-card label {
  display: block;
}

.auth-card input,
.auth-card button {
  width: 100%;
}

.auth-error {
  color: #a33;
}

@media (max-width: 760px) {
  .topbar { align-items: flex-start; }
  .upload-form { width: 100%; flex-wrap: wrap; }
  .upload-form input[type="file"] { width: 100%; }
  th, td { font-size: 0.8rem; }
}

@media (max-width: 480px) {
  .auth-shell {
    padding: 20px 12px;
  }

  .auth-stack {
    width: min(360px, calc(100vw - 24px));
    gap: 16px;
  }

  .auth-brand {
    position: static;
    transform: none;
    width: 100%;
    max-width: none;
  }

  .auth-card {
    padding: 16px;
  }
}