:root {
  --color-primary: #0b5fa5;
  --color-primary-dark: #07406f;
  --color-bg: #f4f6f8;
  --color-card: #ffffff;
  --color-border: #d9dee3;
  --color-text: #1f2933;
  --color-muted: #5b6772;
  --color-success-bg: #e3f6e8;
  --color-success-text: #1f7a3a;
  --color-error-bg: #fdeaea;
  --color-error-text: #a32626;
  --color-warning-bg: #fff6e0;
  --color-warning-text: #8a5a00;
  --radius: 8px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--color-bg);
  color: var(--color-text);
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  background: var(--color-primary-dark);
  color: #fff;
  padding: 0.6rem 1.2rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-weight: 600;
}

.brand-logo {
  height: 32px;
  width: auto;
  background: #fff;
  border-radius: 4px;
  padding: 2px 6px;
}

.topbar nav a {
  color: #fff;
  margin-right: 1rem;
  text-decoration: none;
  opacity: 0.9;
}
.topbar nav a:hover { opacity: 1; text-decoration: underline; }

.userbox { font-size: 0.9rem; opacity: 0.95; }
.userbox a { color: #fff; }

.content {
  max-width: 1200px;
  margin: 1.5rem auto;
  padding: 0 1.2rem 3rem;
}

h1 { font-size: 1.5rem; margin-bottom: 1rem; }
h2 { font-size: 1.15rem; margin-top: 2rem; }

.card {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1rem 1.2rem;
  margin-bottom: 1.2rem;
}

.notice {
  padding: 0.7rem 1rem;
  border-radius: var(--radius);
  margin-bottom: 1rem;
}
.notice-error   { background: var(--color-error-bg); color: var(--color-error-text); }
.notice-success { background: var(--color-success-bg); color: var(--color-success-text); }
.notice-warning { background: var(--color-warning-bg); color: var(--color-warning-text); }
.notice-info    { background: #e7eef5; color: var(--color-primary-dark); }

form.login-form {
  max-width: 360px;
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
}

label {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  font-size: 0.9rem;
  color: var(--color-muted);
}

input[type=text], input[type=password], input[type=email], input[type=date], input[type=time], textarea, select {
  padding: 0.45rem 0.6rem;
  border: 1px solid var(--color-border);
  border-radius: 6px;
  font-size: 1rem;
  font-family: inherit;
}

button, .button {
  background: var(--color-primary);
  color: #fff;
  border: none;
  border-radius: 6px;
  padding: 0.5rem 1rem;
  font-size: 0.95rem;
  cursor: pointer;
  text-decoration: none;
  display: inline-block;
}
button:hover, .button:hover { background: var(--color-primary-dark); }
.button-danger { background: var(--color-error-text); }

.filters {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  gap: 1rem;
  margin-bottom: 1rem;
}

.inline-form, .row-form {
  display: flex;
  gap: 0.5rem;
  align-items: center;
  flex-wrap: wrap;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
}
.data-table th, .data-table td {
  padding: 0.5rem 0.7rem;
  border-bottom: 1px solid var(--color-border);
  text-align: left;
  font-size: 0.9rem;
}
.data-table th { background: #eef2f5; }
.data-table tr.needs-review, tr.needs-review { background: var(--color-warning-bg); }
.data-table tr.status-cancelled { opacity: 0.5; }

.attendee-results { list-style: none; padding: 0; }
.attendee-results li { padding: 0.3rem 0; border-bottom: 1px dashed var(--color-border); }
.attendee-results a { margin-left: 0.8rem; }

.hint { color: var(--color-muted); font-size: 0.85rem; }

.message-list { display: flex; flex-direction: column; gap: 1rem; }
.message-card {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1rem 1.2rem;
}
.message-card.is-sent { opacity: 0.6; }
.message-meta { font-size: 0.85rem; color: var(--color-muted); margin-bottom: 0.5rem; }
.message-text { white-space: pre-wrap; font-size: 1rem; }
.message-actions { display: flex; gap: 0.8rem; align-items: center; margin-top: 0.6rem; flex-wrap: wrap; }

.badge { padding: 0.2rem 0.6rem; border-radius: 999px; font-size: 0.8rem; }
.badge-warning { background: var(--color-warning-bg); color: var(--color-warning-text); }
.badge-error { background: var(--color-error-bg); color: var(--color-error-text); }
.badge-success { background: var(--color-success-bg); color: var(--color-success-text); }

@media (max-width: 640px) {
  .topbar { flex-direction: column; align-items: flex-start; }
  .data-table { display: block; overflow-x: auto; }
}