* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', sans-serif;
}

body {
    background: linear-gradient(135deg, #e3f2fd, #f8f9fa);
    color: #333;
    padding: 20px;
}


body>* {
    max-width: 600px;
    margin: auto;
}


h1.title {
    text-align: center;
    margin-bottom: 25px;
    font-size: 26px;
    font-weight: 700;
    background: linear-gradient(90deg, #007bff, #00c6ff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}


section {
    background: #ffffff;
    padding: 20px;
    border-radius: 14px;
    margin-bottom: 20px;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.05);
    border: none;
    transition: 0.3s;
}

section:hover {
    transform: translateY(-3px);
}

.box {
    margin-bottom: 15px;
}

select {
    width: 100%;
    padding: 12px;
    border-radius: 10px;
    border: 1px solid #ddd;
    font-size: 14px;
    background: #f9fafc;
    transition: 0.2s;
}

select:focus {
    border-color: #007bff;
    outline: none;
    background: #fff;
}




textarea {
    width: 100%;
    height: 100px;
    padding: 12px;
    border-radius: 10px;
    border: 1px solid #ddd;
    resize: none;
    margin-bottom: 10px;
    font-size: 14px;
    background: #f9fafc;
}


button {
    width: 100%;
    padding: 13px;
    border: none;
    border-radius: 10px;
    background: linear-gradient(90deg, #007bff, #00c6ff);
    color: white;
    font-weight: bold;
    cursor: pointer;
    transition: 0.3s;
    box-shadow: 0 4px 15px rgba(0, 123, 255, 0.3);
}

button:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 123, 255, 0.4);
}


.btn-shop,
.btn-admin,
.group-channel a {
    display: inline-block;
    padding: 8px 14px;
    border-radius: 8px;
    background: linear-gradient(90deg, #28a745, #34d058);
    color: white;
    text-decoration: none;
    margin-top: 8px;
    font-size: 14px;
    transition: 0.3s;
}

.btn-admin {
    background: linear-gradient(90deg, #17a2b8, #20c997);
}

.group-channel a {
    background: linear-gradient(90deg, #6c757d, #868e96);
    margin-right: 6px;
}

.btn-shop:hover,
.btn-admin:hover,
.group-channel a:hover {
    transform: translateY(-2px);
}


.footer {
    text-align: center;
    padding: 20px 0;
    font-size: 14px;
    color: #777;
}



.box {
    margin: 25px auto;
    text-align: center;
}


.btn-tutorial {
    display: inline-block;
    padding: 14px 28px;
    background: linear-gradient(45deg, #00c6ff, #0072ff);
    color: white;
    text-decoration: none;
    font-weight: bold;
    border-radius: 30px;
    transition: 0.3s ease;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}


.btn-tutorial:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.3);
}

.tutorial-page {
  background: #ffffff;
  padding: 25px;
  border-radius: 15px;
  box-shadow: 0 8px 25px rgba(0,0,0,0.08);
  margin-top: 20px;
  text-align: center;
  
}

.tutorial-page h2 {
  margin-bottom: 20px;
  font-size: 22px;
  color: #222;
}


.tutorial-list {
  display: flex;
  flex-direction: column;
  gap: 15px;
}


.btn-tutorial-item {
  display: block;
  padding: 15px;
  border-radius: 12px;
  text-decoration: none;
  font-weight: bold;
  color: #fff;
  background: linear-gradient(45deg, #667eea, #764ba2);
  transition: 0.3s ease;
  box-shadow: 0 5px 15px rgba(0,0,0,0.15);
}


.btn-tutorial-item:hover {
  transform: translateY(-4px);
  box-shadow: 0 10px 25px rgba(0,0,0,0.25);
}


.back-box {
  margin-top: 25px;
}

.btn-back {
  display: inline-block;
  padding: 10px 20px;
  border-radius: 25px;
  text-decoration: none;
  background: #6c757d;
  color: white;
  font-weight: bold;
  transition: 0.3s;
}

.btn-back:hover {
  background: #495057;
}


.wa-float {
    position: fixed;
    width: 60px;
    height: 60px;
    bottom: 25px;
    right: 25px;
    background-color: #25d366;
    color: white;
    border-radius: 50%;
    text-align: center;
    font-size: 30px;
    line-height: 60px;
    box-shadow: 2px 2px 10px rgba(0, 0, 0, 0.3);
    z-index: 1000;
    transition: all 0.3s ease;
    text-decoration: none;
}

.wa-float:hover {
    transform: scale(1.1);
    box-shadow: 2px 4px 15px rgba(0, 0, 0, 0.4);
}
.ssh-float {
    background: #ffffff;
    padding: 25px;
    border-radius: 15px;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.08);
    margin-top: 20px;
    text-align: center;
    
}

.ssh-float h2 {
    margin-bottom: 20px;
    font-size: 22px;
    color: #222;
}


.ssh-float {
    display: flex;
    flex-direction: column;
    gap: 15px;
}


.btn-ssh-float {
    display: block;
    padding: 15px;
    border-radius: 12px;
    text-decoration: none;
    font-weight: bold;
    color: #fff;
    background: linear-gradient(45deg, #667eea, #764ba2);
    transition: 0.3s ease;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.15);
}


.btn-ssh-float-item:hover {
    transform: translateY(-4px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.25);
}


.back-box {
    margin-top: 25px;
}

.btn-back {
    display: inline-block;
    padding: 10px 20px;
    border-radius: 25px;
    text-decoration: none;
    background: #6c757d;
    color: white;
    font-weight: bold;
    transition: 0.3s;
}

.btn-back:hover {
    background: #495057;
}

.box {
    margin: 25px auto;
    text-align: center;
    display: flex;
    justify-content: center; 
    gap: 15px; 
    flex-wrap: wrap; 
}

.btn-tutorial,
.btn-ssh-float {
    display: inline-block;
    padding: 14px 28px;
    border-radius: 30px;
    font-weight: bold;
    color: white;
    text-decoration: none;
    text-align: center;
    transition: 0.3s ease;
    box-shadow: 0 5px 15px rgba(0,0,0,0.2);
}


.btn-tutorial {
    background: linear-gradient(45deg, #00c6ff, #0072ff);
}

.btn-ssh-float {
    background: linear-gradient(45deg, #667eea, #764ba2);
}


.btn-tutorial:hover,
.btn-ssh-float:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(0,0,0,0.3);
}
/* ================= PIN LOCK ================= */
#lockScreen {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: #000000e6;
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 9999;
}

.pin-box {
  background: #111;
  padding: 30px;
  border-radius: 15px;
  text-align: center;
  width: 90%;
  max-width: 350px;
}

.pin-box h2 {
  margin-bottom: 15px;
  color: #00eaff;
}

.pin-box input {
  width: 100%;
  padding: 12px;
  border-radius: 8px;
  border: none;
  margin-bottom: 10px;
}

.pin-box button {
  width: 100%;
  padding: 12px;
  border-radius: 8px;
  border: none;
  background: #00eaff;
  font-weight: bold;
  cursor: pointer;
}

#errorText {
  margin-top: 10px;
  color: red;
  font-size: 14px;
}