:root {
    --brand-1: #6a11cb;
    --brand-2: #4a00e0;
    --bg: #f0f4f8;
    --card-bg: #ffffff;
    --border: #e0e5ec;
    --text: #26313d;
    --text-muted: #667085;
    --ok: #1a7f37;
    --fail: #c0261e;
    --warn: #b5750a;
    --radius: 12px;
    --shadow: 0 8px 24px rgba(20, 20, 40, 0.08);
}

* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: 'Segoe UI', Arial, sans-serif;
    background: var(--bg);
    color: var(--text);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

header.topbar {
    background: linear-gradient(to right, var(--brand-1), var(--brand-2));
    color: #fff;
    padding: 1rem 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 0.75rem;
}

header.topbar h1 {
    margin: 0;
    font-size: 1.25rem;
}

header.topbar .user-box {
    display: flex;
    align-items: center;
    gap: 1rem;
    font-size: 0.9rem;
}

header.topbar a.logout {
    color: #fff;
    background: rgba(255,255,255,0.18);
    padding: 0.4rem 0.9rem;
    border-radius: 8px;
    text-decoration: none;
}
header.topbar a.logout:hover { background: rgba(255,255,255,0.3); }

nav.toolnav {
    display: flex;
    flex-wrap: wrap;
    gap: 0.6rem;
    background: #fff;
    padding: 0.75rem 1.5rem;
    border-bottom: 1px solid var(--border);
}

nav.toolnav a {
    padding: 0.45rem 0.9rem;
    border-radius: 8px;
    text-decoration: none;
    color: var(--text);
    font-size: 0.9rem;
    border: 1px solid var(--border);
}
nav.toolnav a:hover { background: var(--bg); }
nav.toolnav a.active {
    background: var(--brand-1);
    border-color: var(--brand-1);
    color: #fff;
}

main.content {
    flex: 1;
    padding: 2rem 1.5rem;
    display: flex;
    justify-content: center;
}

.card {
    background: var(--card-bg);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 2rem;
    max-width: 760px;
    width: 100%;
}

.card h2 {
    margin-top: 0;
    color: var(--brand-2);
}

.grid-cards {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 1rem;
    max-width: 1100px;
    width: 100%;
}

.grid-cards a.tool-card {
    background: var(--card-bg);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 1.25rem;
    text-decoration: none;
    color: var(--text);
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
    border: 1px solid var(--border);
    transition: transform 0.15s, box-shadow 0.15s;
}
.grid-cards a.tool-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 28px rgba(20,20,40,0.14);
}
.grid-cards .tool-icon { font-size: 1.6rem; }
.grid-cards .tool-name { font-weight: 600; }
.grid-cards .tool-desc { font-size: 0.85rem; color: var(--text-muted); }

form.tool-form {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

form.tool-form.inline { flex-direction: row; }
form.tool-form.inline input[type=text] { flex: 1; }

label { font-weight: 600; font-size: 0.9rem; }

input[type=text], input[type=number], input[type=password], input[type=email], input[type=file], select, textarea {
    padding: 0.65rem 0.8rem;
    font-size: 1rem;
    border-radius: 8px;
    border: 1px solid var(--border);
    width: 100%;
    font-family: inherit;
}

.checkbox-group {
    display: flex;
    flex-wrap: wrap;
    gap: 0.9rem;
}
.checkbox-group label {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    font-weight: normal;
}

button, input[type=submit] {
    padding: 0.7rem 1.3rem;
    border: none;
    border-radius: 8px;
    background: var(--brand-1);
    color: #fff;
    font-size: 1rem;
    cursor: pointer;
    align-self: flex-start;
}
button:hover, input[type=submit]:hover { background: var(--brand-2); }

.output {
    background: #f7f8fb;
    border: 1px solid var(--border);
    padding: 1rem;
    border-radius: 8px;
    font-family: 'Cascadia Code', Consolas, monospace;
    white-space: pre-wrap;
    word-break: break-word;
    margin-top: 1rem;
}

.alert {
    padding: 0.8rem 1rem;
    border-radius: 8px;
    margin-bottom: 1rem;
    font-size: 0.95rem;
}
.alert.ok { background: #e6f6ea; color: var(--ok); border: 1px solid #b6e3c1; }
.alert.error { background: #fceceb; color: var(--fail); border: 1px solid #f3c1bd; }
.alert.warn { background: #fdf3e0; color: var(--warn); border: 1px solid #f0dba8; }

table {
    width: 100%;
    border-collapse: collapse;
    background: #fff;
}
th, td {
    border: 1px solid var(--border);
    padding: 8px 10px;
    text-align: left;
    font-size: 0.92rem;
}
th { background: #f3f5f9; }
.status-ok { color: var(--ok); font-weight: bold; }
.status-fail { color: var(--fail); font-weight: bold; }
.status-warn { color: var(--warn); font-weight: bold; }

footer.sitefooter {
    text-align: center;
    padding: 1rem;
    font-size: 0.85rem;
    color: var(--text-muted);
    background: #fff;
    border-top: 1px solid var(--border);
}

.login-wrap {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    background: linear-gradient(135deg, var(--brand-1), var(--brand-2));
}
.login-card {
    background: #fff;
    padding: 2.5rem;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    width: 100%;
    max-width: 360px;
}
.login-card h1 {
    margin-top: 0;
    font-size: 1.3rem;
    text-align: center;
    color: var(--brand-2);
}

@media (max-width: 600px) {
    form.tool-form.inline { flex-direction: column; }
}