:root {
    --primary: #3b82f6; --primary-hover: #2563eb; --secondary: #374151; --success: #10b981;
    --danger: #ef4444; --warning: #f59e0b; --bg-dark-primary: #111827; --bg-dark-secondary: #1f2937;
    --text-light: #f9fafb; --text-muted: #9ca3af; --border-color: #374151; --border-radius: 0.5rem;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: 'Inter', sans-serif; color: var(--text-light); line-height: 1.6; }
.login-body {
    background: linear-gradient(120deg, #020024 0%, #0c0c52 35%, #00d4ff 100%);
    display: flex; justify-content: center; align-items: center; min-height: 100vh; padding: 2rem 1rem;
}
.login-wrapper { width: 100%; max-width: 420px; text-align: center; }
.form-container, .telegram-box {
    background-color: var(--bg-dark-secondary); padding: 2rem; border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
}
.telegram-box { margin-top: 1.5rem; }
.telegram-box h2 { font-size: 1.25rem; margin-bottom: 0.5rem; font-weight: 600; }
.telegram-box p { color: var(--text-muted); font-size: 0.9rem; margin-bottom: 1.5rem; }
.form-title { margin-bottom: 0.5rem; font-weight: 600; font-size: 1.75rem; color: #fff; }
.form-subtitle { margin-bottom: 2rem; color: var(--text-muted); }
.input-group { margin-bottom: 1.25rem; text-align: left; }
.input-group label { display: block; margin-bottom: 0.5rem; font-weight: 500; font-size: 0.9rem; }
.input-group input, .input-group select {
    width: 100%; padding: 0.75rem 1rem; border: 1px solid var(--border-color); background-color: var(--bg-dark-primary);
    color: var(--text-light); border-radius: var(--border-radius); transition: border-color 0.2s, box-shadow 0.2s; font-size: 1rem;
}
.input-group input:focus, .input-group select:focus {
    outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.5);
}
.btn {
    padding: 0.85rem 1.5rem; border: none; border-radius: var(--border-radius); cursor: pointer;
    font-weight: 500; font-size: 1rem; transition: all 0.2s ease; text-decoration: none;
    text-align: center; line-height: 1.5;
}
.btn-primary { background-color: var(--primary); color: white; }
.btn-primary:hover { background-color: var(--primary-hover); }
.btn-secondary { background-color: var(--secondary); color: white; }
.btn-secondary:hover { background-color: #4b5563; }
.btn-full { width: 100%; }
.form-footer { margin-top: 1.5rem; font-size: 0.9rem; }
.form-footer a, .admin-link a { color: var(--primary); text-decoration: none; font-weight: 500; }
.form-footer a:hover, .admin-link a:hover { text-decoration: underline; }
.admin-link { margin-top: 2rem; font-size: 0.9rem; }
body:not(.login-body) { background: var(--bg-dark-primary); }
.main-layout { display: flex; }
.sidebar {
    width: 250px; background-color: var(--bg-dark-secondary); border-right: 1px solid var(--border-color);
    height: 100vh; padding: 1.5rem; display: flex; flex-direction: column; position: fixed;
    transition: transform 0.3s ease; z-index: 1000;
}
.sidebar-header { margin-bottom: 2rem; padding-bottom: 1.5rem; border-bottom: 1px solid var(--border-color); }
.sidebar-header h2 { font-size: 1.25rem; font-weight: 600; color: #fff; }
.sidebar-header .balance { font-size: 1.5rem; font-weight: 700; color: var(--success); margin-top: 0.5rem; }
.sidebar-nav ul { list-style: none; }
.sidebar-nav li a {
    display: flex; align-items: center; gap: 0.75rem; padding: 0.8rem 1rem; color: var(--text-muted);
    text-decoration: none; border-radius: var(--border-radius); font-weight: 500; margin-bottom: 0.5rem;
    transition: background-color 0.2s, color 0.2s;
}
.sidebar-nav li a:hover { background-color: var(--bg-dark-primary); color: #fff; }
.sidebar-nav li a.active { background-color: var(--primary); color: white; }
.sidebar-nav li a.active:hover { color: white; }
.sidebar-footer { margin-top: auto; }
.main-content { margin-left: 250px; padding: 2.5rem; width: calc(100% - 250px); color: var(--text-light); }
.content-header { margin-bottom: 2rem; }
.content-header h1 { font-size: 2rem; font-weight: 600; margin: 0; }
.card {
    background-color: var(--bg-dark-secondary); padding: 2rem; border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
}
.card-title { margin-top: 0; font-size: 1.25rem; font-weight: 600; margin-bottom: 1.5rem; }
.alert {
    padding: 1rem 1.25rem; margin-bottom: 1.5rem; border-radius: var(--border-radius);
    border: 1px solid transparent; color: #fff;
}
.alert-error { background-color: rgba(239, 68, 68, 0.2); border-color: var(--danger); }
.alert-success { background-color: rgba(16, 185, 129, 0.2); border-color: var(--success); }
.alert-info { background-color: rgba(59, 130, 246, 0.2); border-color: var(--primary); }
.table-container { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; margin-top: 1.5rem; }
th, td { padding: 1rem; text-align: left; border-bottom: 1px solid var(--border-color); vertical-align: middle; }
th {
    background-color: var(--bg-dark-primary); font-weight: 600; color: var(--text-muted);
    text-transform: uppercase; font-size: 0.75rem; letter-spacing: 0.5px;
}
.status {
    padding: 0.25rem 0.75rem; border-radius: 2rem; font-size: 0.75rem; font-weight: 600;
    text-align: center; display: inline-block; color: #fff;
}
.status-feita { background-color: var(--success); }
.status-pendente { background-color: var(--warning); color: var(--bg-dark-primary); }
.status-cancelada { background-color: var(--danger); }
.pix-key-box {
    background-color: var(--bg-dark-primary); padding: 1.5rem; border-radius: var(--border-radius);
    text-align: center; margin: 2rem 0; border: 1px solid var(--border-color);
}
.pix-key-box p { color: var(--text-muted); }
.pix-key-box h3 { font-size: 1.25rem; word-break: break-all; color: var(--text-light); margin: 0.5rem 0; }
.btn-danger { background-color: var(--danger); color: white; }
.btn-success { background-color: var(--success); color: white; }
.mobile-menu-toggle { display: none; }
@media (max-width: 992px) {
    .sidebar { transform: translateX(-100%); }
    .main-content { margin-left: 0; width: 100%; padding: 1.5rem; }
    .main-layout.sidebar-open .sidebar { transform: translateX(0); box-shadow: 0 0 40px rgba(0,0,0,0.5); }
    .mobile-menu-toggle {
        display: flex; position: fixed; top: 1rem; left: 1rem; z-index: 1001; background: var(--bg-dark-secondary);
        border: 1px solid var(--border-color); color: var(--text-light); width: 44px; height: 44px;
        border-radius: 50%; align-items: center; justify-content: center;
    }
    .content-header { padding-top: 3rem; }
}
@media (max-width: 768px) {
    .content-header { text-align: center; }
    .content-header h1 { font-size: 1.5rem; }
}