:root{
	--bg:#f7f9fc;
	--card:#ffffff;
	--accent:#2563eb;
	--muted:#6b7280
	}
*{box-sizing:border-box}
body{
	font-family:Tahoma, 'Vazirmatn', sans-serif;
    background: #0f172a;
	color:#fff;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
	}
    header {
      background: linear-gradient(45deg, #2563eb, #60a5fa);
      color: white;
      padding: 30px 10px;
      border-bottom: 4px solid #1d4ed8;
      box-shadow: 0 5px 20px rgba(0,0,0,0.4);
      text-align: center;
	}

    header h1 {
      margin: 0;
      font-size: 26px;
      letter-spacing: 2px;
      justify-content: center;
    }

    .banner {
      width: 100%;
      height: 50px;
      background: linear-gradient(135deg, #3b82f6, #9333ea);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 22px;
      color: #fff;
      font-weight: bold;
      text-shadow: 0 3px 8px rgba(0,0,0,0.4);
    }

.container{
	display: grid;
	max-width:400px;
	margin:0 auto;
    align-items: center
	}

    .card {
      background: linear-gradient(180deg, #1e293b, #0f172a);
      border-radius: 16px;
      box-shadow: 0 10px 25px rgba(0, 0, 0, 0.4);
      padding: 30px 20px;
      text-align: center;
      transition: all 0.3s ease;
      align-items: center;
    }

    .card h3 {
      margin-bottom: 20px;
      font-size: 18px;
      color: #93c5fd;
    }

    .buttons {
      display: flex;
      flex-direction: column;
      align-items: center;
      padding: 12px 0;
      gap: 10px;
    }

    .buttons-r {
      display: flex;
      flex-direction: row;
      justify-content: center;
      align-items: center;
      gap: 10px;
      padding: 2px 0
    }

    .buttons-right {
      display: flex;
      flex-direction: row;
      justify-content: right-side;
      align-items: right-side;
      gap: 10px;
      padding: 2px 0
    }

    .btn-darkblue {
      width: 80%;
      background: linear-gradient(180deg, #010e40, #090e20);
      border: none;
      color: #fff;
      font-family: tahoma;
      font-weight: bold;
      padding: 12px 0;
      border-radius: 10px;
      cursor: pointer;
      transition: all 0.2s ease;
      box-shadow: 0 5px 12px rgba(0, 0, 0, 0.3);
    }

    .btn-darkblue:hover {
      transform: scale(1.05);
      box-shadow: 0 8px 18px rgba(96, 165, 250, 0.5);
    }

    .btn-darkblue:active {
      transform: scale(0.97);
    }
    .btn-darkblue-s {
      width: 40%;
      background: linear-gradient(180deg, #010e40, #090e20);
      border: none;
      color: #fff;
      font-family: tahoma;
      font-weight: bold;
      padding: 12px 0;
      border-radius: 10px;
      cursor: pointer;
      transition: all 0.2s ease;
      box-shadow: 0 5px 12px rgba(0, 0, 0, 0.3);
    }

    .btn-darkblue-s:hover {
      transform: scale(1.05);
      box-shadow: 0 8px 18px rgba(96, 165, 250, 0.5);
    }

    .btn-darkblue-s:active {
      transform: scale(0.97);
    }

  /* استایل فیلد متنی */
    .input-box {
      width: 60%;
      padding: 10px 5px;
      border-radius: 10px;
      border: 1px solid #334155;
      background: #0f172a;
      color: #e2e8f0;
      box-shadow: inset 0 3px 8px rgba(0, 0, 0, 0.4);
      margin-bottom: 15px;
      text-align: center;
      font-size: 16px;
	  font-weight: bold;
      transition: all 0.2s ease;
    }

    .input-box:focus {
      outline: none;
      border-color: #60a5fa;
      box-shadow: 0 0 8px rgba(96, 165, 250, 0.5), inset 0 3px 8px rgba(0, 0, 0, 0.4);
    }

    .input-box-l {
      width: 35%;
      padding: 10px 5px;
      border-radius: 10px;
      border: 1px solid #334155;
      background: #0f172a;
      color: #e2e8f0;
      box-shadow: inset 0 3px 8px rgba(0, 0, 0, 0.4);
      margin-bottom: 15px;
      text-align: center;
      font-size: 16px;
	  font-weight: bold;
      transition: all 0.2s ease;
    }

    .input-box-l:focus {
      outline: none;
      border-color: #60a5fa;
      box-shadow: 0 0 8px rgba(96, 165, 250, 0.5), inset 0 3px 8px rgba(0, 0, 0, 0.4);
    }

/* Style the tab */
.tab {
  overflow: hidden;
  border: none;/*1px solid #ccc;*/
  background-color: #0f173a;
}

/* Style the buttons inside the tab */
.tab button {
  background-color: inherit;
  float: right;
  color: #fff;
  border: none;
  outline: none;
  cursor: pointer;
  padding: 14px 16px;
  transition: 0.3s;
  font-size: 14px;
  font-family: tahoma;
  font-weight: bold;
}

/* Change background color of buttons on hover */
.tab button:hover {
  background-color: #cdd;
}

/* Create an active/current tablink class */
.tab button.active {
  background-color: #77f;
}

/* Style the tab content */
.tabcontent {
  display: none;
  padding: 6px 12px;
  border: none;/*1px solid #ccc;*/
  background-color: #0f172a;
  border-top: none;
}

.btn-image {
	width: 40px;
	height: auto;
}

.image1 {
	width: 70px;
	height: auto;
	cursor: pointer;
}
.fixed-btn {
	position: fixed;
    background: linear-gradient(180deg, #000022, #000000);
    border: none;
    color: #55f;
    font-family: tahoma;
    font-weight: bold;
    font-size: 16px;
    padding: 12px 0;
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.2s ease;
    box-shadow: 0 5px 12px rgba(0, 0, 0, 0.3);
	bottom: 10px;
	left: 20px;
	width: 80px;
	cursor: pointer;
	z-index: 9999;
}
.fixed-btn:hover {
      transform: scale(1.05);
      box-shadow: 0 8px 18px rgba(250, 250, 250, 0.5);
}

.fixed-btn:active {
      transform: scale(0.97);
}
.fixed-image {
	position: fixed;
    /*background: linear-gradient(180deg, #000022, #000000);
    border: none;
    color: #55f;
    border-radius: 10px;
	width: 150px;
    box-shadow: 0 5px 12px rgba(0, 0, 0, 0.3);
    font-family: tahoma;
    font-weight: bold;
    font-size: 16px;
    padding: 12px 0;*/
    cursor: pointer;
    transition: all 0.2s ease;
	top: 10px;
	left: 20px;
	cursor: pointer;
	z-index: 9999;
}
.fixed-image:hover {
      transform: scale(1.05);
      /*box-shadow: 0 8px 18px rgba(250, 250, 250, 0.5);*/
}

.fixed-image:active {
      transform: scale(0.97);
}
.error {
    color: red;
	font-size: 16px;
	font-weight: bold;
    display: none;
    }
	
    .install-btn {
      display: none;
      background: #2196f3;
      color: #fff;
      border: none;
      padding: 14px 22px;
      font-size: 16px;
      border-radius: 8px;
      cursor: pointer;
      margin-top: 20px;
    }

    .install-btn:hover {
      background: #1976d2;
    }

    .ios-hint {
      display: none;
      background: #fff;
      border: 1px solid #ddd;
      padding: 15px;
      border-radius: 8px;
      margin-top: 20px;
      font-size: 14px;
    }

    .ios-hint span {
      font-weight: bold;
      color: #2196f3;
    }

/* ظاهرسازی کوچک */
@media(min-width:900px)