/* ========================================= */
/*            THEME VARIABLES                */
/* ========================================= */
:root{
  --bg: #000000;            /* чорний фон */
  --bg-dark: #0b0b0b;
  --accent: #fd8906;        /* помаранчевий */
  --accent-soft: #ff9f33;
  --muted: #bbbbbb;         /* сірий текст */
  --yellow: #dfb700;
  --blue: #00498f;

  --card: #111111;          /* картки темні */
  --radius: 12px;
  --gap: 18px;

  font-family: Inter, "Segoe UI", Roboto, Arial, sans-serif;
}

*{ box-sizing:border-box; }

body{
  margin:0;
  background:var(--bg);
  color:#ffffff;
  line-height:1.45;
  -webkit-font-smoothing:antialiased;
}

#splash {
    position: fixed;
    inset: 0;

    z-index: 9999;

    background: #000;

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

    opacity: 1;
    transition: opacity 0.6s ease;
  }

  #splash.hidden {
    opacity: 0;
    pointer-events: none;
  }

  #splash img {
    display: block;

    width: auto;
    height: auto;

    max-width: 90vw;
    max-height: 90vh;

    object-fit: contain;
  }
  
/* ========================================= */
/*                  TOPBAR                   */
/* ========================================= */
.topbar{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:18px 24px;
  border-bottom:1px solid #222;
  background:#000;
}

.logo{
  margin:0;
  font-size:22px;
  font-weight:700;
  color:var(--accent);
  letter-spacing:0.5px;
}

/* ========================================= */
/*             APP NAVIGATION                */
/* ========================================= */

.app-nav{

  display:flex;
  justify-content:center;
  align-items:center;
  gap:12px;

  padding:16px 20px;

  border-bottom:1px solid #222;

  background:#080808;
}

.app-nav-btn{

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

  min-width:140px;

  padding:10px 18px;

  border-radius:10px;

  text-decoration:none;

  color:var(--muted);

  border:1px solid #222;

  background:#111;

  transition:.18s;
}

.app-nav-btn:hover{

  border-color:var(--accent);

  color:#fff;

  background:#181818;
}

.app-nav-btn.active{

  background:rgba(253,137,6,.16);

  color:var(--accent);

  border-color:var(--accent);
}

/* ========================================= */
/*              LOGOUT BUTTON                */
/* ========================================= */

.logout-btn{
  padding:8px 14px;
  font-size:14px;
  border-radius:8px;
  border:1px solid #ff3b3b;
  background:transparent;
  color:#ff3b3b;
  cursor:pointer;
  transition:all .2s ease;
}

.logout-btn:hover{
  background:#ff3b3b;
  color:#fff;
}

/* ========================================= */
/*                MAIN LAYOUT                */
/* ========================================= */
.center{
  max-width:1000px;
  margin:40px auto;
  padding:0 20px;
  text-align:center;
}

.lead{
  color:var(--muted);
}

.grid-3{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(220px,1fr));
  gap:20px;
  margin-top:24px;
}

/* CATEGORY CARDS */
.card{
  display:block;
  padding:24px;
  border-radius:var(--radius);
  background:var(--card);
  text-decoration:none;
  color:#fff;
  border:1px solid #222;
  transition:.18s;
}
.card:hover{
  transform:translateY(-6px);
  border-color:var(--accent);
  box-shadow:0 6px 22px rgba(253,137,6,0.25);
}

.card.big h2{
  margin:0 0 6px;
  font-size:20px;
  color:var(--accent);
}

.muted{
  color:var(--muted);
  font-size:13px;
}

/* ========================================= */
/*             CATEGORY PAGE LAYOUT          */
/* ========================================= */
.container{
  display:flex;
  gap:var(--gap);
  max-width:1200px;
  margin:26px auto;
  padding:0 20px;
}

.sidebar{
  width:260px;
}

.content{
  flex:1;
}

/* FILTER PANEL */
.panel{
  background:#111;
  border-radius:var(--radius);
  padding:16px;
  margin-bottom:16px;
  border:1px solid #222;
  box-shadow:0 2px 8px rgba(0,0,0,0.4);
}

.filters label{
  display:block;
  margin:6px 0;
  cursor:pointer;
}

/* ========================================= */
/*               SEARCH FIELD                */
/* ========================================= */

.search-input{

  width:100%;

  padding:12px;

  border-radius:8px;

  border:1px solid #333;

  background:#0f0f0f;

  color:#fff;

  outline:none;

  font-size:15px;
}

.search-input:focus{

  border-color:var(--accent);
}

/* ========================================= */
/*                  BUTTONS                  */
/* ========================================= */

.btn{
  background:var(--accent);
  border:0;
  padding:10px 14px;
  border-radius:8px;
  cursor:pointer;
  color:#000;
  font-weight:700;
  letter-spacing:0.3px;
}
.btn:hover{
  background:var(--accent-soft);
}
.btn.small{
  padding:6px 8px;
  font-size:13px;
}

/* ========================================= */
/*               GALLERY CARDS               */
/* ========================================= */
.gallery{
  display:grid;
  grid-template-columns:repeat(auto-fill,minmax(220px,1fr));
  gap:16px;
}

.card-item{
  background:#111;
  border-radius:var(--radius);
  padding:14px;
  border:1px solid #222;
  cursor:pointer;
  display:flex;
  flex-direction:column;
  gap:8px;
  transition:.15s;
}
.card-item:hover{
  border-color:var(--accent);
  box-shadow:0 4px 16px rgba(253,137,6,0.25);
}

.card-item h3{
  margin:0;
  font-size:16px;
  color:var(--accent);
}
.card-item p.type{
  margin:0;
  color:var(--muted);
  font-size:13px;
}
/*
.card-item h3 .count {
  color: #ffffff; 
}
*/
.card-item h3 span.count {
  color: #ffffff;
}


/* ========================================= */
/*             FULLSCREEN MODAL              */
/* ========================================= */
.overlay{
  position:fixed;
  inset:0;
  background:rgba(0,0,0,0.75);
  display:flex;
  align-items:center;
  justify-content:center;
  z-index:180;
}

.hidden{
  display:none;
}

.modal{
  position:fixed;
  inset:0;
  background:var(--bg-dark);
  color:#fff;
  width:100%;
  height:100%;
  overflow-y:auto;
  padding:20px;
  display:flex;
  flex-direction:column;
  
}

.modal-close{
  position:absolute;
  right:18px;
  top:18px;
  z-index:10;
  border:0;
  background:rgba(253,137,6,0.25);
  backdrop-filter:blur(4px);
  color:#fff;
  font-size:36px;
  border-radius:10px;
  padding:6px 12px;
  cursor:pointer;
  z-index:200;
}
.modal-close:hover{
  background:rgba(253,137,6,0.5);
}

/* MODAL CONTENT */
.modal-body{
  display:flex;
  flex-direction:column;
  gap:20px;
  margin-top:60px;
}

.results-info{

  margin-bottom:18px;

  color:var(--muted);

  font-size:14px;
}

.articles-list{

  display:grid;

  gap:16px;
}

/* ========================================= */
/*              KNOWLEDGE ARTICLES           */
/* ========================================= */

.article-item{

  width:100%;

  min-height:56px;

  padding:14px 18px;

  border:1px solid #222;

  border-radius:var(--radius);

  background:#111;

  color:#ffffff;

  font-size:16px;

  font-weight:500;

  line-height:1.5;

  text-align:left;

  white-space:normal;

  word-break:break-word;

  cursor:pointer;

  transition:
    background .18s ease,
    border-color .18s ease,
    transform .12s ease;
}

.article-item:hover{

  background:#181818;

  border-color:var(--accent);
}

.article-item:active{

  transform:scale(.99);
}

.article-item:focus{

  outline:none;

  border-color:var(--accent);

  box-shadow:0 0 0 2px rgba(253,137,6,.18);
}

/* LEFT SIDE */
.modal-left{
  width:100%;
}

.carousel{

  background:#0f0f0f;

  border-radius:12px;

  padding:20px;

  display:flex;

  justify-content:center;

  align-items:center;

  min-height:320px;
}

/* MEDIA */
.carousel img,
.carousel video{
  max-width:100%;
  max-height:70vh;
  object-fit:contain;
  display:block;
  border-radius:10px;
}

/* ARROWS */
.carousel-btn{

  border:0;

  background:rgba(253,137,6,.25);

  color:#fff;

  width:48px;

  height:48px;

  border-radius:12px;

  font-size:26px;

  cursor:pointer;

  transition:.18s;
}

.carousel-btn:hover{

  background:rgba(253,137,6,.45);
}

/* RIGHT SIDE TEXT */
.modal-right{
  width:100%;
}
.modal-right h2{
  color:var(--accent);
  margin:0 0 6px;
}

.small{
  font-size:12px;
  color:#aaa;
}

#contentTitle {

  margin: 0 0 20px;

  color: var(--accent);

  font-size: 28px;

  font-weight: 700;

}

/* ========================================= */
/*               RESPONSIVE                  */
/* ========================================= */
@media (min-width:900px){
  .modal-body{
    flex-direction:row;
  }
  .modal-left{
    flex:0 0 420px;
  }
}

@media (max-width:900px){
  .container{
    flex-direction:column;
  }
  .sidebar{
    width:100%;
  }
}

/* ========================================= */
/*            LAZY IMAGE SMOOTH FADE         */
/* ========================================= */

.fade-in {
  opacity: 0;
  transition: opacity 0.5s ease;
}

.fade-in[src] {
  opacity: 1;
}

/* Стилі для кнопки "Назад" */

.footer {
  padding-left: 25px;
}

#videoBtn {
  margin-top: 14px;
}

/* ========================================= */
/*           BACK BUTTON (MINIMAL)           */
/* ========================================= */

.back-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;

  width: 44px;
  height: 44px;

  background: rgba(255, 255, 255, 0.04);
  border: 1px solid #2a2a2a;
  border-radius: 12px;

  color: var(--accent);
  font-size: 22px;
  font-weight: 600;

  text-decoration: none;
  cursor: pointer;

  transition: all 0.18s ease;
}

/* Стрілка */
.back-icon::before {
  content: "←";
  line-height: 1;
}

/* Hover */
.back-icon:hover {
  background: rgba(253, 137, 6, 0.12);
  border-color: var(--accent);
  transform: translateX(-3px);
}

/* Active (натискання) */
.back-icon:active {
  transform: translateX(-1px) scale(0.96);
}

/* ========================================= */
/*            KNOWLEDGE PHOTOS               */
/* ========================================= */

.photo-card{

  display:flex;

  flex-direction:column;

  gap:10px;

  padding:12px;

  border:1px solid #222;

  border-radius:var(--radius);

  background:#111;

  transition:
    border-color .18s ease,
    transform .18s ease,
    box-shadow .18s ease;
}

.photo-card:hover{

  border-color:var(--accent);

  transform:translateY(-3px);

  box-shadow:0 4px 16px rgba(253,137,6,.18);
}

.photo-card img{

  width:100%;

  aspect-ratio:16/9;

  object-fit:cover;

  border-radius:8px;

  cursor:pointer;

  display:block;
}

.photo-title{

  color:#ffffff;

  font-size:14px;

  text-align:center;

  line-height:1.4;
}

/* ========================================= */
/*           KNOWLEDGE DOCUMENTS             */
/* ========================================= */

.article-file{

  display:block;

  width:100%;

  margin-bottom:12px;

  padding:14px 18px;

  border:1px solid #222;

  border-radius:var(--radius);

  background:#111;

  color:#ffffff;

  font-size:15px;

  text-align:left;

  cursor:pointer;

  transition:
    background .18s ease,
    border-color .18s ease,
    transform .12s ease;
}

.article-file:hover{

  background:#181818;

  border-color:var(--accent);
}

.article-file:active{

  transform:scale(.99);
}

.article-file:last-child{

  margin-bottom:0;
}

/* ========================================= */
/*          PHOTO VIEWER CONTROLS            */
/* ========================================= */

.photo-controls{

  display:flex;

  justify-content:center;

  align-items:center;

  gap:24px;

  margin-top:18px;
}

.photo-counter{

  min-width:80px;

  text-align:center;

  color:#ffffff;

  font-size:15px;

  font-weight:600;
}

/* ========================================= */
/*       KNOWLEDGE PHOTO / VIDEO VIEWER      */
/* ========================================= */

.photo-modal,
.video-modal{

  position:relative;

  width:min(1100px,95vw);

  max-height:95vh;

  padding:24px;

  border-radius:16px;

  background:#111;

  border:1px solid #222;

  display:flex;

  flex-direction:column;

  overflow:hidden;
}

/* ---------- PHOTO ---------- */

.photo-modal .carousel{

  display:flex;

  justify-content:center;

  align-items:center;

  min-height:400px;

  padding:0;

  background:#111;
}

.photo-modal img{

  display:block;

  max-width:100%;

  max-height:72vh;

  object-fit:contain;

  border-radius:10px;
}

/* ---------- VIDEO ---------- */

.video-container{

  width:100%;

  aspect-ratio:16 / 9;

  border-radius:10px;

  overflow:hidden;

  background:#000;
}

#videoFrame{

  width:100%;

  height:100%;

  border:0;

  display:block;
}

/* ---------- CAPTION ---------- */

#photoCaption,
#videoCaption{

  margin-top:14px;

  text-align:center;
}