*, *::before, *::after { box-sizing: border-box; }

body {
    margin: 0;
    font-family: system-ui, sans-serif;
    font-size: 14px;
    background: #1a1a2e;
    color: #e0e0e0;
    min-height: 100vh;
}

header {
    background: #16213e;
    border-bottom: 1px solid #0f3460;
    padding: 0 1.5rem;
}

header nav {
    display: flex;
    align-items: center;
    gap: 1rem;
    height: 48px;
}

.brand {
    font-weight: 600;
    color: #7ec8e3;
    text-decoration: none;
    margin-right: auto;
}

.nav-links { display: flex; align-items: center; gap: 0.75rem; }
.nav-links a { color: #aaa; text-decoration: none; }
.nav-links a:hover { color: #fff; }

main {
    max-width: 600px;
    margin: 2rem auto;
    padding: 0 1rem;
}

h1 { font-size: 1.4rem; margin-bottom: 1.5rem; color: #7ec8e3; }
h2 { font-size: 1.1rem; margin-bottom: 1rem; color: #aaa; }

.form-group { margin-bottom: 1rem; }
.form-group label { display: block; margin-bottom: 0.25rem; color: #ccc; }

input[type="text"], input[type="email"], input[type="password"], input[type="url"] {
    width: 100%;
    padding: 0.5rem 0.75rem;
    background: #16213e;
    border: 1px solid #0f3460;
    border-radius: 4px;
    color: #e0e0e0;
    font-size: 14px;
}

input:focus { outline: none; border-color: #7ec8e3; }

.btn {
    padding: 0.5rem 1.25rem;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
}

.btn-primary { background: #0f3460; color: #7ec8e3; }
.btn-primary:hover { background: #1a4a80; }
.btn-danger { background: #5c2020; color: #f08080; }
.btn-danger:hover { background: #7a2a2a; }
.btn-secondary { background: #2a2a4a; color: #ccc; }
.btn-secondary:hover { background: #3a3a5a; }

.btn-sm { padding: 0.25rem 0.75rem; font-size: 12px; }

.alert { padding: 0.75rem 1rem; border-radius: 4px; margin-bottom: 1rem; }
.alert-error { background: #3a1a1a; border: 1px solid #7a3a3a; color: #f08080; }
.alert-success { background: #1a3a1a; border: 1px solid #3a7a3a; color: #80f080; }
.alert-info { background: #1a2a3a; border: 1px solid #2a5a7a; color: #80c0f0; }

table { width: 100%; border-collapse: collapse; }
th, td { padding: 0.6rem 0.75rem; text-align: left; border-bottom: 1px solid #2a2a4a; }
th { color: #7ec8e3; font-weight: 600; }
tr:hover td { background: rgba(255,255,255,0.03); }

.section { margin-bottom: 2rem; }
.divider { border: none; border-top: 1px solid #2a2a4a; margin: 1.5rem 0; }

.external-buttons { display: flex; flex-direction: column; gap: 0.5rem; margin-top: 1rem; }
.btn-external { background: #2a2a4a; color: #ccc; text-align: center; }
.btn-external:hover { background: #3a3a5a; }

a { color: #7ec8e3; }
a:hover { color: #aaddff; }

.text-muted { color: #666; }
.actions { display: flex; gap: 0.5rem; }

.max-wide { max-width: 900px; }