* { margin: 0; padding: 0; box-sizing: border-box; }

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: #f0f2f5;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

h1 {
    font-size: 28px;
    color: #2c3e50;
    margin-bottom: 8px;
}

.subtitle {
    color: #7f8c8d;
    font-size: 15px;
    margin-bottom: 40px;
}

.grid {
    display: grid;
    grid-template-columns: repeat(3, 200px);
    grid-template-rows: repeat(2, 140px);
    gap: 20px;
    justify-content: center;
}

.grid .wide {
    grid-column: 1 / -1;
    display: flex;
    justify-content: center;
}

.tile {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    width: 200px;
    height: 140px;
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
    text-decoration: none;
    color: #2c3e50;
    font-size: 16px;
    font-weight: 600;
    transition: transform 0.15s, box-shadow 0.15s;
    cursor: pointer;
}

.tile:hover {
    transform: translateY(-4px);
    box-shadow: 0 6px 20px rgba(0,0,0,0.12);
}

.tile .icon { font-size: 36px; margin-bottom: 10px; }
.tile.hub   { border-top: 4px solid #3498db; }
.tile.wms   { border-top: 4px solid #e67e22; }
.tile.ff    { border-top: 4px solid #27ae60; }
.tile.fmcg  { border-top: 4px solid #8e44ad; }
.tile.stock { border-top: 4px solid #e74c3c; }
.tile.swagger { border-top: 4px solid #85ea2d; }

.swagger-logo {
    height: 28px;
}

.footer {
    margin-top: 40px;
    color: #95a5a6;
    font-size: 13px;
}

.footer a { color: #3498db; text-decoration: none; }
.footer a:hover { text-decoration: underline; }