/* Root Variables */
:root {
  --color-bg: #000000;
  --color-text: #aaaaaa;
  --color-heading: #000000;
  --color-overlay-bg: #f1efed;
  --color-overlay-text: #cac5c0;
  --color-scrollbar: #aaaaaa;
  --color-scrollbar-hover: #ffffff;
  --color-selection-text: #252322;
  --color-selection-bg: #c8c6c4;
  --color-hover-link: #ffffff;
  --color-hover-paragraph: #423e3b;
}

/* Reset & Base */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  display: flex;
  justify-content: center;
  min-height: 100vh;
  background-color: var(--color-bg);
  color: var(--color-text);
  font-family: "Times New Roman", Georgia, serif;
  font-size: clamp(14px, 2vw, 16px);
  line-height: 1.5em;
}

/* Flex Utilities */
.flex-row { display: flex; flex-direction: row; }
.flex-column { display: flex; flex-direction: column; }
.wrap { flex-wrap: wrap; }
.grow-1 { flex-grow: 1; }
.align-center { align-items: center; }

/* Container */
.container {
  padding: 1rem 0.5rem;
  max-width: 560px;
  gap: 2rem;
}

/* Typography & Buttons */
a, button {
  color: var(--color-text);
  padding: 0.5rem;
  text-transform: uppercase;
  transition: color 300ms ease;
  user-select: none;
  -webkit-tap-highlight-color: transparent;
}

a {
  text-decoration: none;
}

header,
footer {
  align-items: center;
  text-align: center;
  gap: 1rem;
}

header h2 {
  font-weight: 400;
  text-transform: uppercase;
  filter: blur(1px);
  -webkit-filter: blur(1px);
}

.play {
  cursor: pointer;
  border: none;
  background: none;
  font-family: inherit;
  font-size: inherit;
}

/* Main & Overlay */
main {
  position: relative;
}

.overlay {
  position: absolute;
  z-index: 2;
  pointer-events: none;
  width: 100%;
  height: 100%;
  padding: 3rem 5rem;
  box-sizing: border-box;
  color: var(--color-heading);
}

/* Sfocatura progressiva */
.text p,
.images img {
  filter: blur(3px);
  opacity: 0;
  visibility: hidden;
  transition: filter 800ms ease, opacity 800ms ease, visibility 800ms ease;
}
.text p.reveal,
.images img.reveal {
  filter: blur(0);
  opacity: 1;
  visibility: visible;
}

/* Immagini */
.images {
  position: relative;
}
.images img {
  width: 100%;
  position: absolute;
  top: 0;
  left: 0;
  z-index: 0;
}
.images img.hover {
  z-index: 1;
}

/* Pagina */
.page {
  z-index: 1;
  padding: 3rem 5rem;
  background-color: var(--color-overlay-bg);
  color: var(--color-overlay-text);
  text-align: justify;
  box-shadow: 0 0 10em rgb(50 40 28 / 20%) inset;
  min-height: 800px;
  transform: scaleX(-1);
}

.page p {
  /*text-indent: 1em;*/
  cursor: pointer;
  filter: blur(1px);
  -webkit-filter: blur(1px);
  opacity: 1;
  visibility: visible;
  transition: color 300ms ease, opacity 300ms ease, visibility 300ms ease;
  user-select: none;
  -webkit-tap-highlight-color: transparent;
}

.page p.hide {
  opacity: 0;
  visibility: hidden;
}

.page .number {
  margin-top: auto;
  padding-top: 1rem;
  text-indent: 0;
  text-align: center;
  user-select: none;
  filter: blur(1px);
  -webkit-filter: blur(1px);
}

/* Scrollbar */
::-webkit-scrollbar {
  width: 0.5rem;
}
::-webkit-scrollbar-track {
  background: none;
}
::-webkit-scrollbar-thumb {
  background: var(--color-scrollbar);
}
::-webkit-scrollbar-thumb:hover {
  background: var(--color-scrollbar-hover);
}

/* Selection */
::selection {
  color: var(--color-selection-text);
  background: var(--color-selection-bg);
}

/* Hover (solo dispositivi con puntatore) */
@media (hover: hover) and (pointer: fine) {
  a:hover,
  .play:hover {
    color: var(--color-hover-link);
  }
  .page p:hover {
    color: var(--color-hover-paragraph);
  }
}

/* Responsive */
@media only screen and (max-width: 768px) {
  .overlay,
  .page {
    padding: 2rem 3rem;
  }
  .page {
    min-height: 600px;
  }
}