{
box-sizing: border-box;
}


body {
margin: 0;
font-family: Tahoma, sans-serif;
background: #f3f4f6;
color: #111827;
}

a {
text-decoration: none;
}

.home-page,
.auth-box,
.main-content {
padding: 30px;
}

.auth-box {
width: 380px;
max-width: 95%;
margin: 80px auto;
background: #fff;
border-radius: 16px;
padding: 25px;
box-shadow: 0 10px 30px rgba(0,0,0,0.08);
}

.auth-box h1 {
margin-top: 0;
margin-bottom: 20px;
font-size: 24px;
}

.auth-box input,
.form-box input,
.form-box select,
.form-box textarea {
width: 100%;
padding: 12px;
margin-bottom: 14px;
border: 1px solid #d1d5db;
border-radius: 10px;
font-size: 14px;
outline: none;
transition: 0.2s;
}

.auth-box input:focus,
.form-box input:focus,
.form-box select:focus,
.form-box textarea:focus {
border-color: #2563eb;
box-shadow: 0 0 0 3px rgba(37,99,235,0.12);
}

.auth-box button,
.form-box button,
.btn {
display: inline-block;
padding: 12px 18px;
background: #2563eb;
color: #fff;
border: none;
border-radius: 10px;
cursor: pointer;
transition: 0.2s;
font-size: 14px;
}

.auth-box button:hover,
.form-box button:hover,
.btn:hover {
background: #1d4ed8;
}

.btn-sm {
padding: 8px 12px;
font-size: 13px;
}

.card {
background: #fff;
border-radius: 16px;
padding: 20px;
box-shadow: 0 10px 25px rgba(0,0,0,0.05);
margin-top: 20px;
}

.alert {
padding: 14px 16px;
border-radius: 10px;
margin-bottom: 15px;
font-size: 14px;
}

.alert-success {
background: #dcfce7;
color: #166534;
}

.alert-error {
background: #fee2e2;
color: #991b1b;
}

.alert-warning {
background: #fef3c7;
color: #92400e;
}

.data-table {
width: 100%;
border-collapse: collapse;
}

.data-table th,
.data-table td {
padding: 14px;
text-align: right;
border-bottom: 1px solid #e5e7eb;
}

.data-table th {
background: #f9fafb;
}

.profile-card p {
margin: 10px 0;
}
.channels-grid {
display: grid;
grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
gap: 20px;
margin-top: 20px;
}

textarea {
width: 100%;
padding: 12px;
border: 1px solid #d1d5db;
border-radius: 10px;
font-size: 14px;
resize: vertical;
font-family: inherit;
}

label {
display: block;
margin-bottom: 8px;
font-weight: bold;
}

hr {
border: none;
border-top: 1px solid #e5e7eb;
margin: 20px 0;
}