body{
  margin:0;
  background:#000;
  color:#0ff;
  font-family:monospace;
  position:relative;
  z-index:1;
  touch-action: manipulation;
  overscroll-behavior: none;
}

.bg{
  position:fixed;
  inset:0;
  background:url('../gif/bg.gif') center/cover no-repeat;
  filter:brightness(.3);
  z-index:-3;
}

.noise{
  position:fixed;
  inset:0;
  background:rgba(255,255,255,0.02);
  pointer-events:none;
  z-index:-2;
}

.glitch-loader{
  position:fixed;
  inset:0;
  background:#000;
  display:flex;
  justify-content:center;
  align-items:center;
  z-index:9999;
}

.hidden{
  display:none !important;
}

.glitch-loader span{
  font-size:32px;
  color:#0ff;
  position:relative;
}

.hidden{display:none;}

header{
  display:flex;
  justify-content:center;
  align-items:center;
  height:100px;
  position:relative;
  z-index:5;
}

.glitch{
  position:relative;
  font-size:42px;
  text-align:center;
}

.glitch::before,
.glitch::after{
  content:attr(data-text);
  position:absolute;
  left:0;
}

.glitch::before{color:#f0f;animation:g1 2s infinite}
.glitch::after{color:#0ff;animation:g2 3s infinite}

@keyframes g1{
  0%{clip-path:inset(10% 0 80% 0)}
  50%{clip-path:inset(40% 0 40% 0)}
}
@keyframes g2{
  0%{clip-path:inset(80% 0 10% 0)}
  50%{clip-path:inset(20% 0 60% 0)}
}

.grid{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(180px,1fr));
  gap:20px;
  padding:30px;
}

.grid div{
  border:1px solid #0ff;
  padding:20px;
  text-align:center;
  cursor:pointer;
  background:rgba(0,0,0,.6);
  transition:.3s;
}

.grid div:hover{
  box-shadow:0 0 20px #f0f;
  transform:scale(1.05);
}

#modal{
  display:none;
  position:fixed;
  inset:0;
  background:rgba(0,0,0,.7);
  z-index:1000;
}

#modal.show{
  display:flex;
  justify-content:center;
  align-items:center;
}

.modal-box{
  width: 90%;
  max-width: 600px;
  max-height: 80vh;       /* ارتفاع حداکثر 80٪ ارتفاع ویو */
  background: #000;
  border: 2px solid #0ff;
  padding: 20px;
  position: relative;
  display: flex;
  flex-direction: column;
  overflow: hidden;       /* جلوگیری از بیرون ریختن محتوای مستقیم */
}

#modal-content{
  overflow-y: auto;       /* فعال کردن اسکرول عمودی برای محتوا */
  word-wrap: break-word;  /* شکستن خطوط طولانی */
  flex: 1;                /* استفاده از کل فضای موجود داخل modal-box */
}

.calc-container {
  width: 100%;
  max-width: 360px;
  margin: auto;
}

.calc-screen {
  width: 90%;
  height: 60px;
  background: #050b14;
  color: #00f7ff;
  border: 2px solid #00f7ff;
  font-size: 26px;
  text-align: right;
  padding: 10px;
  margin-bottom: 15px;
  box-shadow: 0 0 15px #00f7ff;
}

.calc-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
}

.calc-grid button {
  height: 60px;
  font-size: 18px;
  background: #0b1d2a;
  color: #00f7ff;
  border: 1px solid #00f7ff;
  cursor: pointer;
  box-shadow: inset 0 0 8px #00f7ff;
  transition: 0.2s;
}

.calc-grid button:hover {
  background: #00f7ff;
  color: #000;
}

.calc-grid .danger {
  background: #2a0505;
  border-color: #ff0040;
  color: #ff0040;
}

@keyframes glitch {
  0%   { text-shadow: 2px 0 #00f7ff, -2px 0 #ff0040; }
  20%  { text-shadow: -2px 0 #00f7ff, 2px 0 #ff0040; }
  40%  { text-shadow: 2px 2px #00f7ff, -2px -2px #ff0040; }
  60%  { text-shadow: -2px 2px #00f7ff, 2px -2px #ff0040; }
  80%  { text-shadow: 2px 0 #00f7ff, -2px 0 #ff0040; }
  100% { text-shadow: none; }
}

.glitch-effect {
  animation: glitch 0.25s linear;
}

#color_preview{
  width:100%;
  height:60px;
  margin-top:15px;
  border:2px solid #00f7ff;
  box-shadow:0 0 20px #00f7ff;
}

#hex_input,#rgb_input,#hsl_input{
  width:100%;
  margin-top:8px;
}