:root {
    --tank-ink: #14213d;
    --tank-ink-soft: #314873;
    --tank-surface: #ffffff;
    --tank-surface-soft: #f7f9ff;
    --tank-accent: #f77f00;
    --tank-accent-deep: #d96500;
    --tank-border: #dbe5ff;
    --tank-shadow: 0 14px 40px rgba(20, 33, 61, 0.12);
}

.tank-size-page {
    background:
        radial-gradient(circle at 12% 6%, rgba(247, 127, 0, 0.14), transparent 38%),
        radial-gradient(circle at 85% 12%, rgba(56, 98, 181, 0.16), transparent 30%),
        linear-gradient(180deg, #f4f7ff 0%, #eef3ff 40%, #f9fbff 100%);
    min-height: 100vh;
    padding-bottom: 60px;
}

.tank-size-hero {
    padding: 70px 0 26px;
}

.tank-size-eyebrow {
    color: var(--tank-accent-deep);
    font-family: "Poppins", sans-serif;
    font-size: 0.82rem;
    font-weight: 700;
    letter-spacing: 0.14em;
    text-transform: uppercase;
}

.tank-size-title {
    color: var(--tank-ink);
    font-family: "Poppins", sans-serif;
    font-size: clamp(1.9rem, 4.2vw, 3.2rem);
    font-weight: 800;
    letter-spacing: 0.01em;
    line-height: 1.18;
    margin: 0 0 0.65rem;
}

.tank-size-subtitle {
    color: var(--tank-ink-soft);
    font-family: "Poppins", sans-serif;
    font-size: clamp(1rem, 1.5vw, 1.15rem);
    max-width: 780px;
}

.tank-size-content-wrap {
    padding-top: 10px;
}

.tank-size-grid {
    display: grid;
    gap: 1.35rem;
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.tank-size-card {
    background: linear-gradient(160deg, var(--tank-surface), var(--tank-surface-soft));
    border: 1px solid var(--tank-border);
    border-radius: 20px;
    box-shadow: var(--tank-shadow);
    display: grid;
    gap: 0;
    grid-template-columns: minmax(220px, 34%) 1fr;
    overflow: hidden;
    transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.tank-size-card:hover {
    box-shadow: 0 18px 48px rgba(20, 33, 61, 0.18);
    transform: translateY(-3px);
}

.tank-size-media {
    align-items: center;
    background: linear-gradient(180deg, #e9efff, #edf5ff);
    display: flex;
    justify-content: center;
    min-height: 210px;
    padding: 18px;
}

.tank-size-media img {
    height: auto;
    max-height: 235px;
    max-width: 100%;
    object-fit: contain;
    width: auto;
}

.tank-size-body {
    padding: 1.25rem 1.15rem 1.2rem;
}

.tank-size-product-name {
    color: var(--tank-ink);
    font-family: "Poppins", sans-serif;
    font-size: clamp(1.3rem, 2vw, 1.6rem);
    font-weight: 700;
    letter-spacing: 0.005em;
    line-height: 1.24;
    margin-bottom: 0.45rem;
}

.tank-size-product-desc {
    color: var(--tank-ink-soft);
    font-family: "Poppins", sans-serif;
    font-size: 0.95rem;
    line-height: 1.6;
    margin-bottom: 0.8rem;
}

.tank-size-divider {
    background: linear-gradient(90deg, rgba(247, 127, 0, 0.55), rgba(56, 98, 181, 0.55));
    border-radius: 999px;
    height: 3px;
    margin-bottom: 0.8rem;
    width: 78px;
}

.tank-size-variant-heading {
    color: var(--tank-ink);
    font-family: "Poppins", sans-serif;
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 0.6rem;
}

.tank-size-variant-item {
    background-color: rgba(255, 255, 255, 0.82);
    border: 1px solid #e4ebff;
    border-radius: 12px;
    margin-bottom: 0.58rem;
    padding: 0.62rem 0.72rem;
}

.tank-size-variant-top {
    align-items: center;
    display: flex;
    justify-content: space-between;
    margin-bottom: 0.3rem;
}

.tank-size-variant-name {
    background-color: rgba(20, 33, 61, 0.08);
    border-radius: 999px;
    color: var(--tank-ink);
    display: inline-block;
    font-family: "Poppins", sans-serif;
    font-size: 0.82rem;
    font-weight: 700;
    padding: 0.18rem 0.62rem;
}

.tank-size-variant-weight {
    color: var(--tank-accent-deep);
    font-family: "Poppins", sans-serif;
    font-size: 0.8rem;
    font-weight: 700;
}

.tank-size-variant-desc {
    color: #334b74;
    font-family: "Poppins", sans-serif;
    font-size: 0.86rem;
    line-height: 1.5;
}

.tank-size-empty,
.tank-size-empty-state p {
    color: var(--tank-ink-soft);
    font-family: "Poppins", sans-serif;
}

.tank-size-empty-state {
    background-color: rgba(255, 255, 255, 0.78);
    border: 1px dashed var(--tank-border);
    border-radius: 18px;
    margin-top: 8px;
    padding: 1.7rem;
    text-align: center;
}

.tank-size-empty-state h2 {
    color: var(--tank-ink);
    font-family: "Poppins", sans-serif;
    font-weight: 700;
    line-height: 1.25;
}

@media (max-width: 1199.98px) {
    .tank-size-grid {
        grid-template-columns: 1fr;
    }

    .tank-size-card {
        grid-template-columns: minmax(170px, 28%) 1fr;
    }
}

@media (max-width: 767.98px) {
    .tank-size-hero {
        padding: 48px 0 18px;
    }

    .tank-size-card {
        grid-template-columns: 1fr;
    }

    .tank-size-media {
        min-height: 200px;
        padding: 14px;
    }

    .tank-size-media img {
        max-height: 210px;
    }

    .tank-size-body {
        padding: 1rem 0.95rem;
    }
}