:root {
  --bg: #f6f9fc;
  --card: #ffffff;
  --text: #162029;
  --muted: #5d6d7c;
  --accent: #1c7ed6;
  --accent-dark: #1565aa;
  --border: #dce7f2;
  --ok: #2f9e44;
  --shadow: 0 10px 24px rgba(8, 34, 61, 0.08);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Segoe UI", Tahoma, sans-serif;
  background-color: #dfe9f2;
  background-image: url("bg.png");
  background-repeat: no-repeat;
  background-position: center center;
  background-size: cover;
  background-attachment: fixed;
  color: var(--text);
  min-height: 100vh;
}

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  padding: 1rem 1.25rem;
  background: linear-gradient(120deg, #0b5394, #1c7ed6);
  color: #fff;
}

.topbar h1 {
  margin: 0;
  font-size: clamp(1.1rem, 2.2vw, 1.5rem);
}

.topbar h1 a {
  color: inherit;
  text-decoration: none;
}

.topbar h1 a:hover {
  text-decoration: underline;
}

.container {
  width: min(980px, 92vw);
  margin: 1.4rem auto 2rem;
}

.card,
.survey-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  box-shadow: var(--shadow);
}

.card {
  padding: 1.25rem 1.35rem;
  margin-bottom: 1rem;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1rem;
}

.survey-card {
  padding: 1rem;
}

.muted {
  color: var(--muted);
}

.btn {
  display: inline-block;
  border: none;
  border-radius: 10px;
  padding: 0.6rem 1rem;
  cursor: pointer;
  text-decoration: none;
  font-weight: 600;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
}

.btn-primary:hover {
  background: var(--accent-dark);
}

.btn-secondary {
  background: #fff;
  color: #093f70;
}

.hidden {
  display: none !important;
}

.inline-form {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  align-items: center;
}

.inline-form input[type="password"] {
  max-width: 320px;
}

.admin-toolbar {
  display: flex;
  justify-content: space-between;
  align-items: end;
  gap: 1rem;
  flex-wrap: wrap;
}

.admin-actions {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

form {
  display: grid;
  gap: 1.25rem;
}

.field {
  display: grid;
  gap: 0.6rem;
  border: 0;
  margin: 0;
  padding: 0.85rem 0.9rem;
  border-radius: 12px;
  background: #fbfdff;
  border: 1px solid #e3edf7;
}

.field legend {
  font-weight: 600;
  margin-bottom: 0.25rem;
}

.optional-hint {
  color: var(--muted);
  font-weight: 500;
  font-size: 0.95em;
}

input[type="text"],
textarea,
select {
  width: 100%;
  border-radius: 10px;
  border: 1px solid #c4d3e1;
  padding: 0.65rem 0.75rem;
  font: inherit;
}

.short-input {
  width: 120px !important;
}

.likert {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
}

.rating-wrap {
  display: grid;
  gap: 0.45rem;
}

.rating-labels {
  display: flex;
  justify-content: space-between;
  color: var(--muted);
  font-size: 0.93rem;
}

.rating-scale {
  justify-content: space-between;
  gap: 0.4rem;
}

.rating-scale label {
  display: inline-flex;
  align-items: center;
  gap: 0.2rem;
  font-size: 0.95rem;
}

.matrix-wrap {
  overflow-x: auto;
}

.matrix-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 720px;
}

.matrix-table th,
.matrix-table td {
  border: 1px solid #d8e3ef;
  padding: 0.55rem 0.5rem;
  text-align: center;
  vertical-align: middle;
}

.matrix-table thead th {
  background: #eef5fb;
  font-weight: 600;
}

.matrix-table thead th:first-child {
  text-align: left;
}

.matrix-table tbody th {
  text-align: left;
  min-width: 280px;
  background: #fafcff;
  font-weight: 400 !important;
}

.matrix-radio {
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.feedback {
  margin-top: 0.8rem;
  min-height: 1.2rem;
}

.feedback.success {
  color: var(--ok);
}

.results {
  display: grid;
  gap: 1rem;
}

.chart-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  box-shadow: var(--shadow);
  padding: 1rem;
}

.comment-list {
  margin: 0.4rem 0 0;
  padding-left: 1rem;
}

.empty {
  background: #fff;
  border: 1px dashed #9db4cc;
  border-radius: 14px;
  padding: 1rem;
}

@media (max-width: 760px) {
  .card {
    padding: 1rem;
  }

  .field {
    padding: 0.75rem;
  }

  .matrix-table {
    min-width: 640px;
  }

  .rating-scale {
    justify-content: flex-start;
  }
}