/* variabili GLOBALI */
:root {
/* ----------- PALETTE ------------- */
  --color-bg-light: #FFFFFF;
  --color-bg-dark: #0D0D0D;
  --color-text-light: #333333;
  --color-text-dark: #FFFFFF;
  --color-divider: #CCCCCC;
  --color-accent-red: #FF3B30;
  --color-accent-blue: #00A8E8;

  /* ----------- ICON SLIDER banner ------------- */
  --icon-width: 60px;
}


/* ----------- FONT ------------- */
@font-face {
  font-family: 'Roboto-Light';
  src: url('fonts/Roboto-Light.ttf') format('truetype');
  font-weight: normal;
  font-style: normal;
}

@font-face {
  font-family: 'IBM Plex Mono';
  src: url('./fonts/IBMPlexMono-Regular.ttf') format('truetype');
  font-weight: normal;
  font-style: normal;
}


/* ----------- NUVOLA di PARTICELLE ------------- */
  #particles-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: -1;
  }






/* ----------- BODY ------------- */
body {
  margin: 0;
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background-color: var(--color-bg-light);
  color: var(--color-text-light);
  line-height: 1.6;
  transition: background-color 0.3s ease, color 0.3s ease;
  
  /*overflow: hidden;*/
  overflow-x: hidden; /* blocca solo lo scroll orizzontale */
  overflow-y: auto;   /* abilita lo scroll verticale */
}
body.dark-mode {
  background-color: var(--color-bg-dark);
  color: var(--color-text-dark);
}





  /* ----------- HEADER ------------- */
  header {
  /* sfondo trasparente */
  background-color: transparent; 
  
  /* sfondo stile vetro */
  /*background-color: rgba(255, 255, 255, 0.1);*/
  backdrop-filter: blur(4px);  /* intensità dell opacità del vetro */

    color: var(--color-text-light);  /* white; */
    padding: 30px 0px 5px 0px; /* sopra, destra, sotto, sinistra */
    text-align: center;
  }
  body.dark-mode header {
  /*background-color: transparent; */ /* var(--color-bg-dark); */
  color: var(--color-text-dark);
  }
  header h1 {
    margin: 0;
    font-size: 2rem;
  }
  
  
/* ----------- NAVIGATION Links ------------- */
.nav-list {
    list-style: none;
    display: flex;
    align-items: center;     /* allinea verticalmente */
    justify-content: center; /* centra le immagini orizzontalmente */
    gap: 100px;               /* spazio tra immagini */
    padding: 0;
    /*margin-top: 50px ;
    margin-left: -200px; */
}

  nav a {
    color: var(--color-accent-blue);
    margin: 0 1rem;
    text-decoration: none;

    font-family: Roboto-Light, Arial, sans-serif;   /* style per le scritte di navigazione*/
    font-style: normal; /*italic; */
    font-weight: bold; /*regular;*/
    font-size: 18px; 

    border: 2px solid var(--color-accent-blue);
    border-radius: 12px;
    padding: 5px 15px; /* 5px sopra/sotto, 15px sinistra/destra */

    transition: transform 1.5s ease; 
  }
  nav a:hover {
    /* text-decoration: underline; */
    transform: scale(1.2);
  }




  

  /* ----------- THEME SWITCH ------------- */
  .theme-switch {
    display: inline-block;
    width: 60px;
    height: 30px;
    background: #ccc;
    border-radius: 30px;
    position: relative;
    cursor: pointer;
  }
  .switch-knob {
    width: 26px;
    height: 26px;
    background: var(--color-bg-light);
    border-radius: 50%;
    position: absolute;
    top: 2px;
    left: 2px;
    transition: left 0.3s ease;
  }
  .dark-mode .switch-knob {
    left: 32px;
    background: var(--color-bg-dark);
  }


  



  /* ----------- MAIN ( BRANDING MaProCode )------------- */
  main {
    display: flex;
    justify-content: center; /* centra le immagini orizzontalmente */
    padding: 0;  /*1 rem */
    max-width: 1200px;
    margin: auto;
  }

  main h1 {
    /* MaProCode Title */
    font-family: Roboto-Light, Arial, sans-serif;   /* syile per le scritte di navigazione*/
    font-style: normal; /*italic; */
    font-weight: bold; /*regular;*/
    font-size: 10rem; 
  }

  

  /* ----------- TYPEWRITER Effect ------------- */
#typewriter-container {
  display: flex;
  justify-content: center;
  margin-bottom: 8rem;

  font-family: 'IBM Plex Mono', monospace ;   /* Roboto-Light; 'AlienEncounters', monospace; */
  font-size: 2.5rem;
  letter-spacing: 2px;
}
 
#typewriter {
  white-space: nowrap;
  overflow: hidden;
}
      
.cursor {
  width: 15px;
  height: 1.5em;
  background: var(--color-accent-blue); 
  margin-left: 5px;
  animation: blink 0.6s infinite;
}
     
@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0; }
}

/* --- */









  /* ----------- SLOGAN ------------- */
.slogan {
  position: static;  /* absolute */
  margin-top: 3rem;         /*  top: 60vh;  */ 
  left: 0;
  width: 100%;

  background-color: transparent;
  color: black; /*var(--color-text-light);*/   /* lo forzo a BLACK (invece di antracite) per renderlo più visibile */

  font-family: Roboto-Light, Arial, sans-serif;   /* syile per le scritte di navigazione*/
  font-style: italic; /*italic; normal; */
  font-weight: regular; /*regular; bold;*/
  font-size: 1.3rem; 

  text-align: center;
  padding: 0; /* 1rem; */
  margin-top: 1rem;
  }
body.dark-mode .slogan {
  background-color: transparent; /* var(--color-bg-dark); */
  color: var(--color-text-dark);
}








 /* ----------- ICON SLIDER banner ------------- */
.icon-slider {
  /*position: fixed; */     /* fissa il banner */
  /*bottom: 13vh;    */     /* 25% dal fondo del viewport */

  position: static;       /* absolute */
  margin-top: 5rem;                /*  top: 75vh; */
  left: 0;
  width: 100%;          /* larghezza piena */
  overflow: hidden;
  white-space: nowrap;
  background-color: transparent;
  padding: 0px 0px 0px 0px;      /* top  right  bottom left */
  z-index: 1000;        /* assicura che sia visibile sopra altri elementi */
}

.icon-track {
  display: inline-block;
  animation: scrollIcons 48s linear infinite;
}

.icon-track img {
  /*height: 50px;*/
  margin: 0 20px;
  vertical-align: middle;
  filter: grayscale(100%);
  transition: filter 0.3s ease;
}

.icon-track img:hover {
  filter: grayscale(0%);
}

@keyframes scrollIcons {
  0% {
    transform: translateX(0);
  }
  100% {
    transform: translateX(-50%);
  }
}










/* ----------- ARROW DOWN ↓ ------------- */

.arrow-down_container {
  display: flex;
  justify-content: center;
}

.arrow-down {
  position: static; /* absolute */
  margin-top: 3rem;      /* top: 87vh; */

  align-items: center;
  /*
  left: 50%;
  transform: translateX(-50%);
  */
  animation: bounce 2s infinite;
  cursor: pointer;
}

@keyframes bounce {
  0%, 100% {
    transform: translateY(0);  /* transform: translateX(-50%) translateY(0); */
    opacity: 1;
  }
  50% {
    transform: translateY(15px); /* transform: translateX(-50%) translateY(15px);*/
    opacity: 0.7;
  }
}









/* ----------- ABOUT ME ------------- */
.about_me {

  position: static;  /* absolute */
  margin-top: 10rem;        /* top: 100vh; */
  
  /* height: 60vh;            */

  background-color: transparent;
  color: black; /*var(--color-text-light);*/   /* lo forzo a BLACK (invece di antracite) per renderlo più visibile */

  font-family: Roboto-Light, Arial, sans-serif;   /* syile per le scritte di navigazione*/
  font-style: italic; /*italic; normal; */
  font-weight: regular; /*regular; bold;*/
  font-size: 1.3rem; 

  padding: 0; /* 1rem; */
  /*margin-top: 5rem; */

  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  align-items: center;
  }
body.dark-mode .about_me {
  background-color: transparent; /* var(--color-bg-dark); */
  color: var(--color-text-dark);
}

.about_me .container {
  width: 80%; /* o max-width: 800px; */
}

.about_me h1 {
  text-align: center;
  width: 100%;
  margin-bottom: 1rem;
}

.about_me p {
  text-align: left;
  font-size: 1.1em;
}








/* ----------- TECNOLOGIES image container  ------------- */


.Tech_Title{ 
  position: static; /* absolute */
  margin-top: 5rem;       /* top: 310vh;  */

  align-items: center;

  width: 100%;

  /*left: 50%;*/
  /*transform: translateX(-50%);*/  
  /*  height: 60vh;  */

  font-family: Roboto-Light, Arial, sans-serif;   /* style per le scritte di navigazione*/
  font-style: italic; /*italic; normal; */
  font-weight: regular; /*regular; bold;*/
  font-size: 1.3rem; 
}

.Tech_Title h1 {
  text-align: center;
  width: 100%;
  margin-bottom: 2rem;
}

.Technologies_image-row 
  { 
    position: static;         /* absolute */
    margin-top: 4rem;         /* top: 320vh; */
    /*left: auto;*/
    
    left: 10%;              /* 10% di margine sinistro */
    width: 80%;          /* 80 */   /* occuperà esattamente l’80% della larghezza pagina */

    display: flex;
    justify-content: center; /* centra le immagini orizzontalmente */
    row-gap: 2rem;               /* 40px spazio verticale tra immagini */
    column-gap: 1.5rem;            /* 20px spazio orizzontale */
    align-items: center;     /* allinea verticalmente */
    margin: 20px auto;       /* questo centra il contenitore */
    margin-bottom: 5rem;    /* 100px */ 

    /*max-width: 90%; */         /* non occupo tutto lo spazio pagina, ma metto le immagini solo nell' 80% della pagina, centrandole */
    flex-wrap: wrap;         /* se arrivato a fine riga, prosegue a mettere gli item di sotto (centrato) */ 
  }

.Technologies_image-row img 
  { 
    width: 100px;
    height: auto;
    border: 5px solid #ccc;
    border-radius: 15px;
    padding: 5px;
    background-color: #8a8a8a;
    transition: transform 0.3s ease;
    margin-bottom: 25px;     /* spazio sotto le immagini */
  }

.Technologies_image-row img:hover 
  { 
    transform: scale(1.2);
    border-color: #7e3043;
    background-color: #e0f0ff;
    cursor: pointer;
  }

 
/* per visualizzare una CAPTION descrittiva dell'icona al passaggio del mouse */
  .image-wrapper {
    position: relative;
    display: inline-block;
    width: 105px;     
    cursor: pointer;
  }

  .image-wrapper img {
    display: block;
    width: 100%;
    height: auto;
  }
  
  .caption {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background-color: rgba(0,0,0,0.6);
    color: white;
    font-size: 14px;
    padding: 6px 4px;
    text-align: center;
    opacity: 0;
    pointer-events: none;
    border-radius: 26px 26px 26px 26px;   /* raggio della caption */

    transform: translateY(0); /* fuori dalla vista verso il basso */
    transition: transform 0.8s ease, opacity 0.8s ease;
  }
  
  .image-wrapper:hover .caption {
    opacity: 1;
    transform: translateY(70%);
    pointer-events: auto;
  }









/* ----------- FOOTER ------------- */

footer {
  position: fixed;
  bottom: 5px;
  left: 0;
  width: 100%;
  /*padding: 10px;*/

  /* sfondo trasparente */
  background-color: transparent;   /* var(--color-bg-light); */
  
  /* sfondo stile vetro */
  /*background-color: rgba(255, 255, 255, 0.1); */
  /*backdrop-filter: blur(4px); */       /* intensità dell opacità del vetro */
  
  color: black; /*var(--color-text-light);*/

  text-align: center;
  padding: 0; /* 1rem; */
  margin-top: 1rem;
}
body.dark-mode footer {
  /*background-color: var(--color-bg-dark); */
  color: var(--color-text-dark);
}