/* BASE */

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

/* variabili colore */
:root {
  --blue-accent: #003cff; /* cambia qui il blu */
  --fg: var(--blue-accent); /* testo+forme */
  --bg: #ffffff;          /* sfondo */
  --cloud-size: clamp(60px, 10vw, 120px);
}

/* colore invertito ("true colors" > "opposite colors") */
body.real-colors {
  --fg: #ffffff;
  --bg: var(--blue-accent);
}

/* pagina è limitata a ciò che si vede */
html, body {
  width: 100vw;
  height: 100vh;
  overflow: hidden !important;

  background: var(--bg);
  color: var(--fg);

  font-family: "Helvetica Neue", Arial, sans-serif;
  touch-action: none;
  overscroll-behavior: none;

  position: fixed;
  top: 0;
  left: 0;
}

/* tipografia fluida globale (influenza i rem) */
html {
  font-size: clamp(14px, 1.2vw, 16px);
}

/* Niente selezione testo nell’intera UI */
header, footer,
button, a,
#logo,
.draggable, .draggable * {
  user-select: none;
  -webkit-user-select: none;
  -webkit-touch-callout: none;
}

/* LAYOUT: HEADER / CANVAS / FOOTER */

header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;

  padding: 1rem;
  z-index: 1000; /* sempre sopra alle nuvole */

  /* non deve bloccare il drag sulle nuvole */
  pointer-events: none;
}

#logo {
  font-size: clamp(1.8rem, 4vw, 2.5rem);
  font-weight: 500;
  cursor: pointer;
  color: var(--fg);

  /* cliccabile anche se header è pointer-events:none */
  pointer-events: auto;
}

/* area in cui stanno le nuvole */
main#canvas {
  position: absolute;
  top: 60px;
  left: 0;

  width: 100vw;
  height: calc(100vh - 60px);
  overflow: hidden;
}

footer {
  position: fixed;
  bottom: 10px;
  left: 15px;
  z-index: 1000; /* sopra nuvole */
}

#email-link {
  font-size: clamp(0.55rem, 1.4vw, 0.65rem);
  font-weight: 400;
  color: var(--fg);
  text-decoration: none;
  opacity: 0.6;
  transition: opacity 0.2s ease;

  /* cliccabile sempre */
  pointer-events: auto;
}

#email-link:hover {
  opacity: 1;
  text-decoration: underline;
}

/* CLOUD ELEMENT (draggable) */

.draggable {
  position: fixed; /* importante: tu stai trascinando in fixed */
  width: var(--cloud-size);
  height: var(--cloud-size);

  cursor: grab;
  touch-action: none;

  z-index: 200; /* sotto i bottoni, ma visibile */
  transition: transform 0.2s ease;
}

/* quando ci passi sopra, la nuvola sale sopra ai bottoni (così la puoi prendere) */
.draggable:hover {
  z-index: 1200;
}

/* wrapper SVG */
.draggable .cloud-svg {
  width: 100%;
  height: 100%;
  display: block;

  transform-origin: 50% 50%;
  transition: opacity 0.25s ease;
}

/* nome (non ruota mai) */
.draggable .cloud-name {
  position: absolute;
  inset: 0;

  display: flex;
  align-items: center;
  justify-content: center;

  font-size: clamp(0.6rem, 2.2vw, 1rem);
  font-weight: 500;
  color: var(--fg);

  opacity: 0;
  pointer-events: none;

  transform: none !important;
  transition: opacity 0.25s ease;
}

/* hover normale: mostra nome, nasconde nuvola */
.draggable:hover .cloud-svg { opacity: 0; }
.draggable:hover .cloud-name { opacity: 1; }

/* MODALITÀ: NAMES-ONLY (authors/clouds) */

body.names-only .draggable .cloud-svg { opacity: 0 !important; }
body.names-only .draggable .cloud-name { opacity: 1 !important; }

/* in names-only, hover inverte (torna la nuvola) */
body.names-only .draggable:hover .cloud-svg { opacity: 1 !important; }
body.names-only .draggable:hover .cloud-name { opacity: 0 !important; }

/* SVG COLOR */

svg {
  width: 100%;
  height: 100%;
}

/* forza stroke/fill (colore) per tutto il contenuto SVG */
svg * {
  stroke: var(--fg) !important;
  fill: var(--fg) !important;
}

/* BUTTONS (colonna a destra) */

#toggle-names,
#toggle-wind,
#new-sky,
#toggle-real,
#toggle-closer,
#toggle-settle,
#toggle-empty {
  position: fixed;
  right: 1rem;

  padding: 0;
  background: none;
  border: none;

  font-size: clamp(0.65rem, 1.8vw, 0.8rem);
  font-weight: 400;
  color: var(--fg);

  cursor: pointer;
  opacity: 0.6;

  z-index: 1100; /* sopra alle nuvole */

  /* cliccabili anche se header è pointer-events:none */
  pointer-events: auto;
}

#toggle-names  { top: 1rem; }
#toggle-wind   { top: 2.2rem; }
#new-sky       { top: 3.4rem; }
#toggle-real   { top: 4.6rem; }
#toggle-closer { top: 5.8rem; }
#toggle-settle { top: 7rem; }
#toggle-empty  { top: 8.2rem; }

#toggle-names:hover,
#toggle-wind:hover,
#new-sky:hover,
#toggle-real:hover,
#toggle-closer:hover,
#toggle-settle:hover,
#toggle-empty:hover {
  opacity: 1;
  text-decoration: underline;
}

/* CLOSER MODE (closer/farther) */

#prev-cloud,
#next-cloud {
  position: fixed;
  top: 50%;
  transform: translateY(-50%);

  background: none;
  border: none;
  color: var(--fg);

  font-size: 1.8rem;
  cursor: pointer;

  opacity: 0;
  pointer-events: none;

  z-index: 1100; /* sopra alle nuvole */
}

#prev-cloud { left: 1rem; }
#next-cloud { right: 1rem; }

body.closer-mode #prev-cloud,
body.closer-mode #next-cloud {
  opacity: 0.7;
  pointer-events: auto;
}

body.closer-mode #prev-cloud:hover,
body.closer-mode #next-cloud:hover {
  opacity: 1;
}

/* in closer-mode nasconde tutte le nuvole tranne quella attiva */
body.closer-mode .draggable { display: none; }
body.closer-mode .draggable.active {
  display: block;
  width: 80vmin;
  height: 80vmin;
}

/* EMPTY MODE (epty/full) */

body.empty-mode .draggable {
  display: none !important;
}

/* DRAGGING: evita selezione testo sopra ai bottoni */

body.dragging,
body.dragging * {
  user-select: none !important;
  -webkit-user-select: none !important;
  cursor: grabbing;
}

/* RESPONSIVE */

@media (max-width: 768px) {

  /* bottoni in basso a destra */
  #toggle-names,
  #toggle-wind,
  #new-sky,
  #toggle-real,
  #toggle-closer,
  #toggle-settle,
  #toggle-empty {
    top: auto !important; /* disattiva i top desktop */
    bottom: auto;         /* reset di sicurezza */
    right: 1rem;
  }

  /* ordine dal basso verso l’alto (spaziatura 1.2rem) */
  #toggle-empty  { bottom: 1rem; }
  #toggle-settle { bottom: 2.2rem; }
  #toggle-closer { bottom: 3.4rem; }
  #toggle-real   { bottom: 4.6rem; }
  #new-sky       { bottom: 5.8rem; }
  #toggle-wind   { bottom: 7.0rem; }
  #toggle-names  { bottom: 8.2rem; }
}