:root {
  --ink: #121417;
  --slate: #4a5560;
  --mist: #e8edf2;
  --fog: #f4f7fa;
  --crimson: #b42318;
  --crimson-dark: #7a1510;
  --ok: #1b7f4e;
  --line: #d7dee6;
  --card: #fff;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: "Segoe UI", system-ui, sans-serif;
  color: var(--ink);
  background: linear-gradient(180deg, #f7fafc 0%, var(--fog) 100%);
  min-height: 100vh;
}
a { color: var(--crimson-dark); text-decoration: none; }
a:hover { text-decoration: underline; }

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  padding: 0.9rem 1.25rem;
  background: #111;
  color: #fff;
}
.brand {
  color: #fff;
  font-weight: 800;
  letter-spacing: -0.02em;
  text-decoration: none;
}
.topbar nav {
  display: flex;
  gap: 0.9rem;
  align-items: center;
  flex-wrap: wrap;
}
.topbar nav a { color: #eee; }
.topbar .user { color: #9aa3ad; font-size: 0.9rem; }

.container {
  width: min(960px, calc(100% - 2rem));
  margin: 1.5rem auto 3rem;
}

.page-head {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: flex-start;
  margin-bottom: 1.25rem;
}
.page-head h1, h1 { margin: 0 0 0.25rem; letter-spacing: -0.03em; }
.muted { color: var(--slate); margin: 0; }
.actions { display: flex; gap: 0.5rem; flex-wrap: wrap; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid transparent;
  border-radius: 10px;
  padding: 0.65rem 1rem;
  font-weight: 700;
  cursor: pointer;
  text-decoration: none;
}
.btn-primary { background: var(--crimson); color: #fff; }
.btn-primary:hover { background: var(--crimson-dark); text-decoration: none; color: #fff; }
.btn-ghost {
  background: transparent;
  border-color: var(--line);
  color: var(--ink);
}
.topbar .btn-ghost { color: #fff; border-color: #444; }

.stack { display: grid; gap: 0.85rem; max-width: 520px; }
.stack label, fieldset label {
  display: grid;
  gap: 0.35rem;
  font-weight: 600;
  font-size: 0.92rem;
}
input, select {
  width: 100%;
  padding: 0.7rem 0.75rem;
  border: 1px solid var(--line);
  border-radius: 10px;
  font: inherit;
  background: #fff;
}
fieldset {
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 1rem;
  margin: 0;
  background: var(--card);
}
.form-grid { max-width: 640px; }
.check {
  display: flex !important;
  align-items: center;
  gap: 0.5rem;
  font-weight: 600;
}
.check input { width: auto; }

.card-list { display: grid; gap: 0.75rem; }
.card-link {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: center;
  padding: 1rem 1.1rem;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 14px;
  color: inherit;
  text-decoration: none;
}
.card-link:hover { border-color: #b8c2cc; text-decoration: none; }

.badge {
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.25rem 0.55rem;
  border-radius: 999px;
}
.badge-ok { background: #e6f6ee; color: var(--ok); }
.badge-off { background: #fdeceb; color: var(--crimson); }

.table-wrap {
  overflow: auto;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 14px;
}
table { width: 100%; border-collapse: collapse; }
th, td { padding: 0.8rem 0.9rem; border-bottom: 1px solid var(--mist); text-align: left; vertical-align: middle; }
th { font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.04em; color: var(--slate); }
.inline-form { display: flex; gap: 0.6rem; align-items: center; flex-wrap: wrap; }
.inline-form select { width: auto; min-width: 120px; }

.flash-wrap { display: grid; gap: 0.5rem; margin-bottom: 1rem; }
.flash { padding: 0.75rem 0.9rem; border-radius: 10px; font-weight: 600; }
.flash-success { background: #e6f6ee; color: var(--ok); }
.flash-error { background: #fdeceb; color: var(--crimson); }

.empty {
  padding: 2rem;
  text-align: center;
  background: var(--card);
  border: 1px dashed var(--line);
  border-radius: 14px;
}

.guest {
  display: grid;
  place-items: center;
  min-height: 100vh;
  background:
    radial-gradient(circle at top left, #3a0d0d, transparent 40%),
    linear-gradient(145deg, #1a0a0a, #7a1510 55%, #2a1010);
}
.guest-card {
  width: min(420px, calc(100% - 2rem));
  background: #fff;
  border-radius: 16px;
  padding: 1.5rem;
  box-shadow: 0 20px 50px rgba(0,0,0,0.25);
}
.guest-card h1 { margin-bottom: 0.2rem; }
.guest-card .muted { margin-bottom: 1rem; }

@media (max-width: 700px) {
  .page-head { flex-direction: column; }
}