@font-face {
  font-family: 'Montserrat';
  font-style: italic;
  /* intervallo di pesi supportati; in genere 100–900 per i Google variable fonts */
  font-weight: 100 900;
  src: url('../webfonts/Montserrat-Italic-VariableFont_wght.ttf') format('truetype');
  font-display: swap;
}

/* =========================
   Variabili e base
   ========================= */

:root {
  --bg: #eef3f9;
  --bg-elevated: #ffffff;
  --text: #000000;
  --text-muted: #272a31;
  --border: #d7dce8;
  --primary: #2f5ea1;
  --primary-soft: #e0f2fe;
  --shadow-soft: 0 10px 24px rgba(15, 23, 42, .08);
  --radius-panel: 5px;
  --transition-fast: 160ms ease-out;
  --accent-red: #ff3857;
}

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

html,
body {
  margin: 0;
  padding: 0;
  font-size: 16px;
}

body {
  font-family: 'Montserrat', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  font-optical-sizing: auto;
  font-weight: 300;
  font-style: normal;
  /* sfondo quasi uniforme, leggero verso l'alto */
  background: linear-gradient(to bottom, #f5f7fb 0%, #eef2f9 45%, #eef2f9 100%);
  color: var(--text);
  line-height: 1.5;
}

em, i, .italic {
  font-style: italic;
}

/* pesi diversi */
.light-italic  { font-style: italic; font-weight: 300; }
.regular-italic{ font-style: italic; font-weight: 400; }
.bold-italic   { font-style: italic; font-weight: 700; }


/* =========================
   Header / Topbar
   ========================= */

.topbar {
  position: sticky;
  top: 0;
  z-index: 50;
  background: #f0f6fb;
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(209, 213, 219, .7);
}

.topbar-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: .55rem 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.25rem;
}

.brand {
  display: flex;
  align-items: center;
  justify-content: flex-start;
}

.brand h1 {
  margin: 0;
  font-size: clamp(1rem, .8rem + 1vw, 1.35rem);
  color: var(--primary);
}

.brand-sub {
  margin: .15rem 0 0;
  font-size: .8rem;
  color: var(--text-muted);
}

/* =========================
   Navigazione
   ========================= */

.main-nav ul {
  list-style: none;
  display: flex;
  gap: .5rem;
  margin: 0;
  padding: 0;
  align-items: center;
}

.main-nav a {
  position: relative;
  display: inline-block;
  padding: .35rem .75rem;
  border-radius: var(--radius-panel);
  font-size: .9rem;
  font-weight: 500;
  color: var(--text-muted);
  text-decoration: none;
  border: 1px solid transparent;
  transition: color var(--transition-fast);
}

/* linea sotto animata */
.main-nav a::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 0.1rem;
  width: 0;
  height: 2px;
  background: var(--primary);
  border-radius: var(--radius-panel);
  transform: translateX(-50%);
  transition: width 0.22s ease-out;
}

.main-nav a:hover,
.main-nav a:focus-visible {
  background: transparent;
  /* niente pill azzurra */
  color: var(--primary);
  border-color: transparent;
  outline: none;
}

.main-nav a:hover::after,
.main-nav a:focus-visible::after {
  width: 70%;
  /* sottolineatura “soft” */
}

.nav-toggle {
  display: none;
  width: 28px;
  height: 10px;
  flex-direction: column;
  justify-content: space-between;
  background: none;
  border: none;
  padding: 0;
  cursor: pointer;
  margin-top: 5px;
}

.nav-toggle-bar {
  width: 100%;
  height: 2px;
  background: var(--text);
  border-radius: var(--radius-panel);
  transition: transform 0.25s ease, opacity 0.25s ease;
}

/* stato aperto: X */
.nav-toggle.is-open .nav-toggle-bar:nth-child(1) {
  transform: translateY(4px) rotate(45deg);
}

.nav-toggle.is-open .nav-toggle-bar:nth-child(2) {
  transform: translateY(-4px) rotate(-45deg);
}

/* =========================
   Layout pagina
   ========================= */

.page {
  max-width: 1280px;
  margin: 1rem auto 2rem;
  padding: 0 1rem;
}

section {
  margin-bottom: 1rem;
}

.panel {
  background: var(--bg-elevated);
  border-radius: var(--radius-panel);
  border: 1px solid rgba(215, 220, 232, 0.9);
  box-shadow: var(--shadow-soft);
  padding: 1rem 1.1rem 1.2rem;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.panel-header h2 {
  margin: 0;
  font-size: 1.1rem;
  text-transform: uppercase;
  color: var(--primary);
}

.panel-desc {
  margin: .2rem 0 0;
  font-size: .85rem;
  color: var(--text-muted);
}

i.fa-solid.fa-sun,
i.fa-solid.fa-moon {
  font-size: 1.5em;
}

.flex-box {
  display: flex;
  gap: 0.75rem;
}

.flex-v-center {
  align-items: center;
}

.flex-o-start {
  justify-content: flex-start;
}

img#weather-icon {
  width: 36px;
  height: 36px;
}

/* =========================
   Riepilogo / summary
   ========================= */

.summary-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1rem;
  margin-top: 1rem;
}

.summary-item {
  background: linear-gradient(135deg, #fafbfc 0%, #f0f6fb 100%);
  border-radius: var(--radius-panel);
  border: 1px solid #e2e8f0;
  padding: 0 0 8px;
  display: flex;
  justify-content: space-around;
  align-items: flex-start;
  flex-wrap: wrap;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.summary-item:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 18px rgba(15, 23, 42, 0.08);
}

.summary-item .label {
  font-size: .9rem;
  font-weight: 600;
  margin-bottom: .4rem;
  width: 100%;
  padding: 0.5rem 0.8rem;
  border-radius: var(--radius-panel);
}

.summary-item .label i {
  font-size: 1.2rem;
  margin-right: 4px;
}

.summary-item .value {
  font-size: 1.35rem;
  font-weight: 600;
}

.summary-item .hint {
  margin-top: .2rem;
  font-size: .8rem;
  color: #6b7280;
}

.summary-item .hint span {
  font-weight: 500;
}

.summary-graphic {
  display: flex;
  width: 45%;
  justify-content: center;
}

.summary-details {
  width: 55%;
}

/* =========================
   Tabelle
   ========================= */

.table-wrap {
  margin-top: 1rem;
  overflow-x: auto;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: .9rem;
}

.data-table tbody td:first-child {
  font-weight: 500;
}

.data-table th,
.data-table td {
  padding: .45rem .6rem;
  border-bottom: 1px solid #e5e7eb;
}

.data-table th {
  text-align: left;
  background: #f3f4f6;
  font-weight: 600;
}

.data-table tr:nth-child(even) td {
  background: #fcfcfc;
}

/* =========================
   Iframe / frame
   ========================= */

.frame-wrap {
  margin-top: .75rem;
  border-radius: var(--radius-panel);
  border: 1px solid var(--border);
  overflow: hidden;
  background: #f3f4f6;
}

.frame-16x9 {
  position: relative;
  width: 100%;
  padding-top: 56.25%;
  margin-top: .75rem;
}

.frame-16x9 iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
}

.frame-wrap iframe {
  display: block;
  width: 100%;
  border: 0;
  height: 700px;
  overflow: hidden;
  /* desktop */
}

/* =========================
   Footer
   ========================= */

.site-footer {
  border-top: 1px solid var(--border);
  background: #f9fafb;
}

.footer-inner {
  max-width: 1180px;
  margin: 0 auto;
  padding: .8rem 1rem 1.1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  font-size: .85rem;
  color: var(--text-muted);
}

.back-top {
  color: var(--primary);
  text-decoration: none;
}

/* =========================
   Modale archivio
   ========================= */

.modal {
  position: fixed;
  inset: 0;
  display: none;
  z-index: 100;
}

.modal.open {
  display: block;
}

.modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(15, 23, 42, 0.45);
  backdrop-filter: blur(4px);
}

.modal-dialog {
  position: relative;
  max-width: 96vw;
  min-width: 340px;
  width: fit-content;
  margin: 6vh auto;
  background: var(--bg-elevated);
  border-radius: var(--radius-panel);
  box-shadow: var(--shadow-soft);
  padding: 1rem 1.1rem 1.2rem;
  max-height: 88vh;
  display: flex;
  flex-direction: column;
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: .75rem;
  margin-bottom: .5rem;
}

.modal-body {
  flex: 1;
  overflow-y: auto;
  padding: 0.5rem;
}

.archive-search-wrap {
  margin-bottom: .5rem;
}

.archive-search {
  padding: .6rem .55rem;
  border-radius: var(--radius-panel);
  border: 1px solid var(--border);
  font-size: .9rem;
  width: 100%;
}

.archive-search:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 1px;
}

.modal-header h2 {
  margin: 0;
  font-size: 1.05rem;
}

.modal-close {
  border: none;
  background: transparent;
  font-size: 1.4rem;
  line-height: 1;
  cursor: pointer;
  color: var(--text-muted);
}

.archive-list {
  list-style: none;
  margin: .4rem 0 0;
  padding: 0;
}

.archive-list li+li {
  margin-top: .2rem;
}

.archive-item-btn {
  width: 100%;
  text-align: left;
  padding: .45rem .6rem;
  border-radius: var(--radius-panel);
  border: 0;
  background: #ffffff;
  font-size: .9rem;
  color: var(--text-muted);
  cursor: pointer;
}

.archive-item-btn:hover,
.archive-item-btn:focus-visible {
  background: var(--primary-soft);
  color: var(--primary);
  border-color: rgba(14, 165, 233, 0.6);
}

.archive-content {
  margin-top: .6rem;
  padding: .6rem .7rem;
  border-radius: var(--radius-panel);
  border: 1px solid var(--border);
  background: #f9fafb;
  min-height: 40vh;
  max-height: 70vh;
  overflow: auto;
  font-size: .85rem;
}

.archive-back {
  border: none;
  background: transparent;
  color: var(--primary);
  font-size: .85rem;
  cursor: pointer;
  padding: 0;
}

/* Se vuoi differenziare i link interni dell'archivio */
.archive-content a {
  color: var(--primary);
}

/* =========================
   Strumenti / gauge
   ========================= */

.pws-dial {
  position: relative;
  flex: 0 0 150px;
  height: 150px;
}

.pws-dial-bg {
  width: 100%;
  height: 100%;
  display: block;
}

.thermo {
  height: 115px;
}

.wu-wind-orbit {
  position: relative;
  width: 100px;
  height: 100px;
  margin: 0 auto;
}

.wu-wind-dial {
  width: 100px;
  height: 100px;
}

.wu-wind-marker {
  position: absolute;
  width: 20px;
  height: 20px;
  transform-origin: center center;
  transition:
    transform 0.25s ease-out,
    top 0.25s ease-out,
    left 0.25s ease-out;
}

.wu-wind-orbit .value {
  position: absolute;
  left: 35px;
  top: 35px;
}

/* pluviometro SVG */
#rain-fill {
  fill: #38bdf8;
  transition: height 0.5s ease, y 0.5s ease;
}

/* barometro */
#pressure-gauge {
  position: relative;
  width: 100px;
  height: 100px;
}

#pressure-backg {
  width: 100px;
  height: 100px;
  display: block;
}

#pressure-needle {
  position: absolute;
  top: calc(50% - 14px);
  left: 50%;
  width: 42px;
  height: 42px;
  transform-origin: 0 50%;
  transform: rotate(0deg);
  transition: transform 0.3s ease-out;
  filter: drop-shadow(0 1px 2px rgba(0, 0, 0, 0.35));
}

/* =========================
   Pulsanti grafici / toggle
   ========================= */

.btn-toggle-chart {
  color: #1e293b;
  border: 1px solid #d4dbe8;
  border-radius: var(--radius-panel);
  padding: 6px 12px;
  margin: 4px;
  cursor: pointer;
  font-size: 0.8rem;
  background: #f9fafb;
  transition:
    background-color 0.2s ease,
    color 0.2s ease,
    box-shadow 0.2s ease,
    border-color 0.2s ease;
}

/* stato attivo: da gestire via JS con class="active" */
.btn-toggle-chart.active {
  color: #0b1120;
  box-shadow: 0 3px 10px rgba(15, 23, 42, 0.18);
}

/* palette meteo morbida per i vari tipi di grafico */
.bgTemp {
  background-color: #fee4e2;
  border-color: #ffbdbd;
}

.bgTemp:hover {
  background-color: #fcdcd9;
}

.bgRain {
  background-color: #dbeafe;
  border-color: #bfdbfe;
}

.bgRain:hover {
  background-color: #d0e2ff;
}

.bgWind {
  background-color: #dcfce7;
  border-color: #bbf7d0;
}

.bgWind:hover {
  background-color: #d4f7df;
}

.bgBaro {
  background-color: #e5e7eb;
  border-color: #d4d4d8;
}

.bgBaro:hover {
  background-color: #e0e2e7;
}

.chart-buttons {
  text-align: center;
}

/* =========================
   Responsive
   ========================= */

@media (max-width:1000px) {
  .summary-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width:768px) {
  .topbar-inner {
    align-items: flex-start;
  }

  .main-nav {
    position: absolute;
    inset-inline: 0;
    top: 100%;
    background: rgba(255, 255, 255, .98);
    border-bottom: 1px solid var(--border);
    box-shadow: 0 8px 18px rgba(15, 23, 42, .08);
    transform-origin: top;
    transform: scaleY(0);
    opacity: 0;
    pointer-events: none;
    transition:
      transform var(--transition-fast),
      opacity var(--transition-fast);
  }

  .main-nav ul {
    flex-direction: column;
    padding: .4rem .8rem .7rem;
  }

  .main-nav a {
    width: 100%;
  }

  .main-nav.open {
    transform: scaleY(1);
    opacity: 1;
    pointer-events: auto;
  }

  .nav-toggle {
    display: inline-flex;
  }

  .page {
    max-width: 100%;
    padding: 0 .6rem;
  }

  .panel {
    padding: .85rem .85rem 1rem;
  }

  .summary-grid {
    grid-template-columns: 1fr;
  }

  .frame-wrap iframe {
    height: 490px;
  }
}

@media (max-width: 480px) {
  .frame-wrap iframe {
    height: 450px;
  }
}

/* =========================
   Accessibilità focus
   ========================= */

:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

.modal[aria-hidden="true"] {
  display: none !important;
}

.modal.open {
  display: flex !important;
}

.modal-backdrop {
  cursor: pointer;
}

.modal-dialog {
  outline: none;
}

.modal[aria-hidden="true"] button,
.modal[aria-hidden="true"] input {
  pointer-events: none !important;
  tabindex: -1 !important;
}

.modal-close:focus {
  outline: 2px solid #0ea5e9 !important;
}