/* style.css */
/* =====================================================
   WSAPP — Bootstrap-safe styles (BEM + namespace)
   ===================================================== */

:root{
  /* Background */
  --wsapp-bg1:#070B14;
  --wsapp-bg2:#0B1220;

  /* Surfaces */
  --wsapp-surface: rgba(255,255,255,.06);
  --wsapp-surface2: rgba(255,255,255,.08);
  --wsapp-stroke: rgba(255,255,255,.12);

  /* Text palette */
  --wsapp-text-strong: rgba(255,255,255,.94);
  --wsapp-text: rgba(255,255,255,.86);
  --wsapp-text-muted: rgba(255,255,255,.68);
  --wsapp-text-faint: rgba(255,255,255,.55);

  /* Accents (no yellow) */
  --wsapp-accent: #6EA8FF;   /* blue */
  --wsapp-accent2:#A78BFA;   /* purple */
  --wsapp-info:   #22D3EE;   /* cyan */
  --wsapp-ok:     #34D399;   /* green */
  --wsapp-danger: #FB7185;   /* pink-red */

  /* Effects */
  --wsapp-shadow: 0 22px 70px rgba(0,0,0,.35);
  --wsapp-radius: 18px;
}

html, body{
  height: 100%;
}

body{
  margin: 0;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Inter, sans-serif;
  background: #000; /* не видно під app, але ок */
}

/* =====================================================
   LOADER
   ===================================================== */
.wsapp-loader{
  position: fixed;
  inset: 0;
  display: grid;
  place-items: center;
  padding: 24px;
  background:
    radial-gradient(1100px 520px at 18% 12%, rgba(110,168,255,.20), transparent 60%),
    radial-gradient(900px 520px at 92% 28%, rgba(167,139,250,.16), transparent 55%),
    linear-gradient(160deg, var(--wsapp-bg1), var(--wsapp-bg2));
  z-index: 9999;
  overflow: hidden;
}

.wsapp-loader::before{
  content:"";
  position:absolute;
  inset:-40%;
  background:
    radial-gradient(circle at 30% 30%, rgba(255,255,255,.06), transparent 40%),
    radial-gradient(circle at 70% 60%, rgba(255,255,255,.05), transparent 45%);
  filter: blur(2px);
  animation: wsappFloatBg 7s ease-in-out infinite alternate;
}

@keyframes wsappFloatBg{
  from{ transform: translate3d(-1.5%, -1%, 0) scale(1); }
  to  { transform: translate3d(1.5%, 1%, 0) scale(1.02); }
}

.wsapp-loader__panel{
  position: relative;
  width: min(520px, 100%);
  padding: 26px 22px;
  border-radius: var(--wsapp-radius);
  background: rgba(255,255,255,.08);
  border: 1px solid rgba(255,255,255,.16);
  box-shadow: var(--wsapp-shadow);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}

.wsapp-loader__icon{
  position: relative;
  height: 70px;
  margin-bottom: 12px;
}

.wsapp-loader__gear{
  position:absolute;
  top: 8px;
  left: 50%;
  transform: translateX(-50%);
  width: 56px;
  height: 56px;
  border-radius: 50%;
  border: 3px solid rgba(255,255,255,.35);
  box-shadow: inset 0 0 0 6px rgba(255,255,255,.06);
}

.wsapp-loader__gear::before{
  content:"";
  position:absolute;
  inset: 10px;
  border-radius: 50%;
  border: 2px dashed rgba(255,255,255,.32);
}

.wsapp-loader__gear--big{
  animation: wsappSpin 1.8s linear infinite;
}

.wsapp-loader__gear--small{
  width: 36px;
  height: 36px;
  top: 30px;
  left: calc(50% + 48px);
  border-width: 2px;
  animation: wsappSpinReverse 1.2s linear infinite;
  opacity: .9;
}

@keyframes wsappSpin{
  from{ transform: translateX(-50%) rotate(0deg); }
  to  { transform: translateX(-50%) rotate(360deg); }
}

@keyframes wsappSpinReverse{
  from{ transform: translateX(-50%) rotate(0deg); }
  to  { transform: translateX(-50%) rotate(-360deg); }
}

.wsapp-loader__title{
  margin: 0 0 6px;
  color: var(--wsapp-text-strong);
  font-size: 20px;
  line-height: 1.2;
  letter-spacing: 0.2px;
}

.wsapp-loader__subtitle{
  margin: 0 0 16px;
  color: var(--wsapp-text-muted);
  font-size: 14px;
}

.wsapp-loader__bar{
  width: 100%;
  height: 10px;
  border-radius: 999px;
  background: rgba(255,255,255,.10);
  border: 1px solid rgba(255,255,255,.14);
  overflow: hidden;
}

.wsapp-loader__barFill{
  height: 100%;
  width: 0%;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--wsapp-accent), var(--wsapp-accent2));
  box-shadow: 0 10px 30px rgba(110,168,255,.15);
  transition: width .18s ease;
}

.wsapp-loader__meta{
  margin-top: 12px;
  display:flex;
  align-items:center;
  justify-content: space-between;
  gap: 12px;
  color: var(--wsapp-text-muted);
  font-size: 13px;
}

.wsapp-loader__percent{
  color: var(--wsapp-text-faint);
}

.wsapp-loader__skip{
  appearance: none;
  border: 1px solid rgba(255,255,255,.18);
  background: rgba(255,255,255,.08);
  color: var(--wsapp-text-strong);
  padding: 8px 10px;
  border-radius: 12px;
  cursor: pointer;
  transition: transform .12s ease, background .12s ease, border-color .12s ease;
}

.wsapp-loader__skip:hover{
  background: rgba(255,255,255,.12);
  border-color: rgba(255,255,255,.26);
  transform: translateY(-1px);
}

.wsapp-loader__skip:active{
  transform: translateY(0px) scale(.98);
}

.wsapp-loader--hide{
  animation: wsappFadeOut .45s ease forwards;
}

@keyframes wsappFadeOut{
  to { opacity: 0; visibility: hidden; }
}

/* =====================================================
   APP SHELL
   ===================================================== */
.wsapp-app--hidden{ display:none; }

.wsapp-shell{
  min-height: 100vh;
  padding: 18px;
  background:
    radial-gradient(1100px 520px at 18% 12%, rgba(110,168,255,.10), transparent 60%),
    radial-gradient(900px 520px at 92% 28%, rgba(167,139,250,.08), transparent 55%),
    linear-gradient(160deg, var(--wsapp-bg1), var(--wsapp-bg2));
  color: var(--wsapp-text);
}

/* TOPBAR */
.wsapp-topbar{
  display:flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  padding: 14px 14px;
  border-radius: 16px;
  background: linear-gradient(180deg, rgba(255,255,255,.08), rgba(255,255,255,.03));
  border: 1px solid rgba(255,255,255,.12);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.wsapp-brand{
  display:flex;
  align-items:center;
  gap: 10px;
  user-select:none;
}

.wsapp-brand__dot{
  width: 10px;
  height: 10px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--wsapp-accent), var(--wsapp-accent2));
  box-shadow: 0 10px 30px rgba(110,168,255,.18);
}

.wsapp-brand__title{
  font-weight: 800;
  letter-spacing: .2px;
  color: var(--wsapp-text-strong);
}

.wsapp-topbar__right{
  display:flex;
  align-items:center;
  gap: 10px;
}

.wsapp-roleBadge{
  font-size: 13px;
  color: var(--wsapp-text-faint);
  padding: 8px 10px;
  border-radius: 12px;
  border: 1px solid rgba(255,255,255,.14);
  background: rgba(255,255,255,.04);
}

/* BUTTONS (bootstrap-safe, do not use .btn) */
.wsapp-btn{
  appearance: none;
  border: 1px solid rgba(255,255,255,.16);
  background: rgba(255,255,255,.08);
  color: var(--wsapp-text);
  padding: 10px 12px;
  border-radius: 14px;
  cursor:pointer;
  transition: transform .12s ease, background .12s ease, border-color .12s ease, color .12s ease;
  font: inherit;
}

.wsapp-btn:hover{
  background: rgba(255,255,255,.12);
  border-color: rgba(255,255,255,.24);
  transform: translateY(-1px);
  color: var(--wsapp-text-strong);
}

.wsapp-btn:active{
  transform: translateY(0) scale(.99);
}

.wsapp-btn--ghost{
  background: rgba(255,255,255,.04);
  color: var(--wsapp-text-muted);
}

/* MAIN */
.wsapp-main{
  padding: 18px 4px;
}

.wsapp-h2{
  margin: 14px 0 8px;
  font-size: 20px;
  color: var(--wsapp-text-strong);
}

.wsapp-muted{
  margin: 0 0 16px;
  color: var(--wsapp-text-muted);
  font-size: 14px;
}

/* Screens */
.wsapp-screen{ display:none; }
.wsapp-screen--active{ display:block; }

.wsapp-screenHead{
  display:flex;
  align-items:center;
  gap: 10px;
  margin-bottom: 10px;
}

.wsapp-panel{
  padding: 14px;
  border-radius: 16px;
  border: 1px solid rgba(255,255,255,.12);
  background: rgba(255,255,255,.06);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}

/* =====================================================
   MENU (BEM, complex classes, no collisions)
   ===================================================== */
.wsapp-menu{
  padding: 10px 0 0;
}

.wsapp-menu__grid{
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

@media (min-width: 700px){
  .wsapp-menu__grid{
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.wsapp-menu__tile{
  position: relative;
  display: block;
  text-align: left;

  padding: 18px 16px 20px;
  border-radius: 20px;

  background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.12);
  box-shadow: 0 22px 60px rgba(0,0,0,.30);

  cursor: pointer;
  user-select: none;

  /* reset button defaults + prevent bootstrap influence */
  appearance: none;
  -webkit-appearance: none;
  outline: none;

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

  color: var(--wsapp-text);
}

.wsapp-menu__tile:hover{
  transform: translateY(-3px);
  background: rgba(255,255,255,.08);
  box-shadow: 0 28px 80px rgba(0,0,0,.38);
  border-color: rgba(255,255,255,.22);
}

.wsapp-menu__tile:active{
  transform: translateY(-1px) scale(.99);
}

.wsapp-menu__tile::before{
  content:"";
  position:absolute;
  inset:0;
  background: linear-gradient(140deg, rgba(255,255,255,.18), transparent 45%);
  opacity: .25;
  z-index: 0;
}

.wsapp-menu__tile::after{
  content:"";
  position:absolute;
  top:0;
  left:0;
  right:0;
  height:4px;
  border-radius: 20px 20px 0 0;
  z-index: 1;
}

.wsapp-menu__title,
.wsapp-menu__text{
  position: relative;
  z-index: 2;
  margin: 0;
}

.wsapp-menu__title{
  font-size: 18px;
  font-weight: 900;
  letter-spacing: .3px;
  margin-bottom: 8px;
  color: var(--wsapp-text-strong);
}

.wsapp-menu__text{
  font-size: 14px;
  line-height: 1.45;
  color: var(--wsapp-text-muted);
}

.wsapp-menu__tile:focus-visible{
  box-shadow:
    0 0 0 2px rgba(255,255,255,.22),
    0 22px 60px rgba(0,0,0,.35);
}

/* Theme modifiers */
.wsapp-menu__tile--homework .wsapp-menu__title{ color: var(--wsapp-accent); }
.wsapp-menu__tile--homework::after{ background: linear-gradient(90deg, var(--wsapp-accent), transparent); }

.wsapp-menu__tile--lesson .wsapp-menu__title{ color: var(--wsapp-info); }
.wsapp-menu__tile--lesson::after{ background: linear-gradient(90deg, var(--wsapp-info), transparent); }

.wsapp-menu__tile--training .wsapp-menu__title{ color: var(--wsapp-accent2); }
.wsapp-menu__tile--training::after{ background: linear-gradient(90deg, var(--wsapp-accent2), transparent); }

/* Hidden modifier used by JS (role-based) */
.wsapp-menu__tile--hidden{
  display: none !important;
}

/* =====================================================
   HOMEWORK LIST
   ===================================================== */
.wsapp-list{
  display: grid;
  gap: 10px;
}

.wsapp-listItem{
  padding: 14px;
  border-radius: 16px;
  border: 1px solid rgba(255,255,255,.12);
  background: rgba(255,255,255,.06);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  transition: border-color .16s ease, background .16s ease, transform .16s ease;
  cursor: pointer;
}

.wsapp-listItem:hover{
  border-color: rgba(110,168,255,.32);
  background: rgba(255,255,255,.08);
  transform: translateY(-1px);
}

.wsapp-listItem__title{
  margin: 0 0 6px;
  font-weight: 900;
  color: var(--wsapp-text-strong);
}

.wsapp-listItem__meta{
  margin: 0;
  font-size: 13px;
  color: var(--wsapp-text-faint);
}

/* HOMEWORK screen: spacing between Frontend / JavaScript tiles */
#wsapp-screen-homework .wsapp-menu__grid{
  gap: 50px !important; /* можеш 18px, 24px видно краще */
}

@media (max-width: 640px){
  #wsapp-screen-homework .wsapp-menu__grid{
    grid-template-columns: 1fr !important;
  }
}

#wsapp-screen-homework .wsapp-menu__tile{
  min-height: 80px;}

  /* =========================
   Role Gate (beautiful UI)
   ========================= */

.wsapp-gate{
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: grid;
  place-items: center;
  padding: 18px;
  pointer-events: auto;
}

.wsapp-gate--hidden{
  display: none;
}

.wsapp-gate__backdrop{
  position: absolute;
  inset: 0;
  background: radial-gradient(1200px 600px at 50% 20%, rgba(255,255,255,.18), rgba(0,0,0,.55));
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  animation: wsFadeIn .22s ease both;
}

.wsapp-gate__modal{
  position: relative;
  width: min(560px, 100%);
  border-radius: 22px;
  padding: 18px;
  background: rgba(255,255,255,.78);
  border: 1px solid rgba(0,0,0,.10);
  box-shadow: 0 30px 80px rgba(0,0,0,.25);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  transform: translateY(10px) scale(.98);
  opacity: 0;
  animation: wsModalIn .28s cubic-bezier(.2,.9,.2,1) both;
}

.wsapp-gate__head{
  padding: 10px 10px 6px;
}

.wsapp-gate__badge{
  width: 46px;
  height: 8px;
  border-radius: 999px;
  background: linear-gradient(90deg, rgba(0,185,255,.8), rgba(9,121,43,.8), rgba(255,184,0,.8));
  margin-bottom: 10px;
  box-shadow: 0 10px 18px rgba(0,0,0,.10);
}

.wsapp-gate__roles{
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  padding: 10px;
}

@media (max-width: 520px){
  .wsapp-gate__roles{
    grid-template-columns: 1fr;
  }
}

.wsapp-gate__card{
  display: flex;
  align-items: center;
  gap: 12px;
  text-align: left;
  padding: 14px 14px;
  border-radius: 18px;
  border: 1px solid rgba(0,0,0,.10);
  background: rgba(255,255,255,.70);
  box-shadow: 0 14px 30px rgba(0,0,0,.10);
  cursor: pointer;
  transition: transform .14s ease, box-shadow .14s ease, border-color .14s ease, background .14s ease;
}

.wsapp-gate__card:hover{
  transform: translateY(-2px);
  box-shadow: 0 18px 44px rgba(0,0,0,.16);
  border-color: rgba(0,0,0,.18);
  background: rgba(255,255,255,.86);
}

.wsapp-gate__card--active{
  border-color: rgba(0,0,0,.22);
  background: rgba(255,255,255,.92);
  box-shadow: 0 20px 55px rgba(0,0,0,.18);
}

.wsapp-gate__icon{
  width: 44px;
  height: 44px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  background: rgba(255,255,255,.75);
  border: 1px solid rgba(0,0,0,.08);
  font-size: 22px;
}

.wsapp-gate__title{
  font-weight: 800;
  letter-spacing: .2px;
  color: rgba(0,0,0,.86);
}

.wsapp-gate__desc{
  margin-top: 2px;
  font-size: 13px;
  opacity: .75;
}

.wsapp-gate__form{
  padding: 10px;
}

.wsapp-gate__label{
  display: block;
  font-size: 13px;
  opacity: .75;
  margin: 6px 0 8px;
}

.wsapp-gate__inputWrap{
  display: flex;
  align-items: stretch;
  gap: 10px;
}

.wsapp-gate__input{
  flex: 1;
  padding: 12px 14px;
  border-radius: 14px;
  border: 1px solid rgba(0,0,0,.12);
  background: rgba(255,255,255,.88);
  outline: none;
  font-size: 14px;
  transition: border-color .14s ease, box-shadow .14s ease;
}

.wsapp-gate__input:focus{
  border-color: rgba(0,0,0,.28);
  box-shadow: 0 0 0 4px rgba(0,0,0,.08);
}

.wsapp-gate__toggle{
  width: 48px;
  border-radius: 14px;
  border: 1px solid rgba(0,0,0,.12);
  background: rgba(255,255,255,.70);
  cursor: pointer;
  transition: transform .12s ease, box-shadow .12s ease;
}

.wsapp-gate__toggle:hover{
  transform: translateY(-1px);
  box-shadow: 0 10px 18px rgba(0,0,0,.12);
}

.wsapp-gate__error{
  min-height: 18px;
  margin-top: 10px;
  font-size: 13px;
  color: rgba(200, 0, 0, .85);
}

.wsapp-gate__actions{
  display: flex;
  gap: 10px;
  margin-top: 12px;
}

.wsapp-gate__enter{
  flex: 1;
}

@keyframes wsFadeIn{
  from{ opacity: 0; }
  to{ opacity: 1; }
}

@keyframes wsModalIn{
  from{ opacity: 0; transform: translateY(16px) scale(.98); }
  to{ opacity: 1; transform: translateY(0) scale(1); }
}