body {
    font-family: Arial, sans-serif;
    background: #f5f7fa;
    text-align: center;
}

h1 {
    margin-bottom: 30px;
}

/* -------- HOME PAGE DEVICE ROW -------- */
.device-row {
    display: flex;
    justify-content: center;   /* center horizontally */
    gap: 40px;                 /* space between kettle & chimney */
    margin-top: 40px;
}

/* -------- DEVICE CARD -------- */
.device-card {
    background: white;
    padding: 20px;
    border-radius: 12px;
    width: 260px;
    box-shadow: 0 4px 10px rgba(0,0,0,0.1);
}

.device-card img {
    width: 160px;        /* force consistent size */
    height: auto;
    max-height: 200px;
    object-fit: contain;
    display: block;
    margin: 0 auto 10px auto;
}

.device-card {
    min-height: 360px;
}

/* clickable effect */
.clickable {
    cursor: pointer;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.clickable:hover {
    transform: translateY(-6px);
    box-shadow: 0 10px 20px rgba(0,0,0,0.15);
}

/* -------- GENERIC CARDS -------- */
.card {
    background: white;
    padding: 20px;
    margin: 20px auto;
    width: 80%;
    max-width: 600px;
    border-radius: 10px;
}

/* -------- CONTROLS -------- */
.controls button {
    margin: 10px;
    padding: 10px 20px;
}

/* -------- PAGES -------- */
.page {
    margin-top: 20px;
}