/* ============================================================
   Catalogo Servizi Web — styles.css
   Mobile-first, design sobrio, contrasto accessibile.
   ============================================================ */

/* ---------- Variabili e reset ---------- */
:root {
  --bg: #f5f6f8;
  --surface: #ffffff;
  --surface-alt: #f0f2f5;
  --text: #1a1d23;
  --text-muted: #5b6470;
  --border: #d8dce3;
  --primary: #1f57c9;
  --primary-dark: #1746a8;

  /* Colori badge status (testo scuro su sfondo tenue per buon contrasto) */
  --status-attivo-bg: #d7f0dc;
  --status-attivo-fg: #155724;

  --status-lento-bg: #fff1cc;
  --status-lento-fg: #7a5a00;

  --status-offline-bg: #e6e8ec;
  --status-offline-fg: #454b54;

  --status-non-disponibile-bg: #fbdcdc;
  --status-non-disponibile-fg: #8a1f1f;

  --radius: 10px;
  --shadow: 0 1px 3px rgba(16, 24, 40, 0.08), 0 1px 2px rgba(16, 24, 40, 0.06);
  --max-width: 1100px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
  font-size: 16px;
}

.container {
  width: 100%;
  max-width: var(--max-width);
  margin-inline: auto;
  padding-inline: 16px;
}

/* ---------- Header ---------- */
.site-header {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  padding-block: 24px;
}

.site-header h1 {
  margin: 0;
  font-size: 1.5rem;
  letter-spacing: -0.01em;
}

.subtitle {
  margin: 6px 0 0;
  color: var(--text-muted);
  font-size: 0.95rem;
}

/* ---------- Pannello di controllo ---------- */
.controls {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  margin: 24px 0;
}

.control {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.control label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text);
}

.control input,
.control select {
  width: 100%;
  padding: 10px 12px;
  font-size: 1rem;
  color: var(--text);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.control input:focus,
.control select:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(31, 87, 201, 0.18);
}

/* ---------- Contatore risultati ---------- */
.results-count {
  margin: 0 0 12px;
  color: var(--text-muted);
  font-size: 0.9rem;
}

/* ---------- Griglia delle card ---------- */
.cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  padding-bottom: 40px;
}

/* ---------- Card ---------- */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 18px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.card__header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}

.card__title {
  margin: 0;
  font-size: 1.15rem;
  line-height: 1.3;
}

.card__title a {
  color: var(--primary);
  text-decoration: none;
}

.card__title a:hover,
.card__title a:focus {
  text-decoration: underline;
}

.card__category {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-muted);
  background: var(--surface-alt);
  border-radius: 999px;
  padding: 3px 10px;
}

.card__description {
  margin: 0;
  color: var(--text);
  font-size: 0.95rem;
}

.card__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 14px;
  font-size: 0.85rem;
  color: var(--text-muted);
}

.card__url {
  color: var(--primary);
  text-decoration: none;
  word-break: break-all;
}

.card__url:hover,
.card__url:focus {
  text-decoration: underline;
}

/* ---------- Tag ---------- */
.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.tag {
  font-size: 0.75rem;
  color: var(--text-muted);
  background: var(--surface-alt);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 2px 8px;
}

/* ---------- Note ---------- */
.card__notes {
  margin: 0;
  font-size: 0.85rem;
  color: var(--text-muted);
  background: var(--surface-alt);
  border-left: 3px solid var(--border);
  padding: 8px 12px;
  border-radius: 4px;
}

/* ---------- Badge status ---------- */
.badge {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  padding: 4px 10px;
  border-radius: 999px;
  white-space: nowrap;
}

.badge--attivo {
  background: var(--status-attivo-bg);
  color: var(--status-attivo-fg);
}

.badge--lento {
  background: var(--status-lento-bg);
  color: var(--status-lento-fg);
}

.badge--offline {
  background: var(--status-offline-bg);
  color: var(--status-offline-fg);
}

.badge--non-disponibile {
  background: var(--status-non-disponibile-bg);
  color: var(--status-non-disponibile-fg);
}

/* ---------- Stati vuoto / errore ---------- */
.empty-state,
.error-state {
  text-align: center;
  padding: 48px 16px;
  color: var(--text-muted);
  font-size: 1rem;
}

.error-state code {
  background: var(--surface-alt);
  padding: 2px 6px;
  border-radius: 4px;
}

/* ---------- Footer ---------- */
.site-footer {
  border-top: 1px solid var(--border);
  background: var(--surface);
  padding-block: 16px;
  color: var(--text-muted);
  font-size: 0.85rem;
}

.site-footer p {
  margin: 0;
  text-align: center;
}

/* ---------- Responsive: tablet e desktop ---------- */
@media (min-width: 640px) {
  .controls {
    grid-template-columns: 2fr 1fr 1fr;
    align-items: end;
  }

  .cards {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 960px) {
  .cards {
    grid-template-columns: repeat(3, 1fr);
  }

  .site-header h1 {
    font-size: 1.75rem;
  }
}

/* ---------- Riduci movimento ---------- */
@media (prefers-reduced-motion: reduce) {
  * {
    transition: none !important;
  }
}