/* ════════════════════════════════════════════════════════
   MẠNG LƯỚI ĐỐI TÁC — partner-network.css
   Enterprise · Clean · SaaS · Techport
   ════════════════════════════════════════════════════════ */

/* ── Section wrapper ─────────────────────────────────── */
.partner-network {
    padding: 80px 0;
    background: #F8FAFC;
}

/* ── Main title block ────────────────────────────────── */
.pn-header {
    margin-bottom: 12px;
}

.pn-title {
    font-size: 32px;
    font-weight: 700;
    text-transform: uppercase;
    color: #111827;
    letter-spacing: .5px;
    margin-bottom: 10px;
}

.pn-subtitle {
    font-size: 15px;
    color: #6B7280;
    margin-bottom: 16px;
}

.pn-underline {
    width: 60px;
    height: 4px;
    background: #2563EB;
    border-radius: 2px;
    margin: 0 auto 0;
}

/* ── Sub-group ───────────────────────────────────────── */
.pn-group {
    margin-top: 60px;
}

.pn-group-title {
    font-size: 16px;
    font-weight: 700;
    color: #111827;
    text-transform: uppercase;
    letter-spacing: .4px;
    border-left: 4px solid #2563EB;
    padding-left: 12px;
    margin-bottom: 20px;
    line-height: 1.4;
}

.pn-group-count {
    display: inline-block;
    background: #EFF6FF;
    color: #2563EB;
    font-size: 12px;
    font-weight: 600;
    padding: 2px 10px;
    border-radius: 20px;
    margin-left: 10px;
    vertical-align: middle;
}

/* ── Logo grid ───────────────────────────────────────── */
.pn-logo-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
}

.pn-logo-item {
    flex: 0 0 calc(20% - 13px);
    /* 5/row desktop */
}

.pn-logo-card {
    display: flex;
    align-items: center;
    justify-content: center;
    background: #fff;
    border: 1px solid #E5E7EB;
    border-radius: 14px;
    height: 100px;
    padding: 20px;
    text-decoration: none;
    transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
    position: relative;
    overflow: hidden;
}

.pn-logo-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 24px rgba(0, 0, 0, .08);
    border-color: #2563EB;
}

.pn-logo-card img {
    max-width: 100%;
    max-height: 60px;
    object-fit: contain;
    filter: grayscale(20%);
    transition: filter .25s ease;
}

.pn-logo-card:hover img {
    filter: grayscale(0%);
}

/* Tooltip name */
.pn-logo-name {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: rgba(37, 99, 235, .9);
    color: #fff;
    font-size: 11px;
    font-weight: 600;
    text-align: center;
    padding: 5px 6px;
    transform: translateY(100%);
    transition: transform .22s ease;
    border-radius: 0 0 14px 14px;
}

.pn-logo-card:hover .pn-logo-name {
    transform: translateY(0);
}

/* ── Responsive ──────────────────────────────────────── */
@media (max-width: 992px) {
    .pn-logo-item {
        flex: 0 0 calc(33.33% - 11px);
        /* 3/row tablet */
    }
}

@media (max-width: 767px) {
    .partner-network {
        padding: 50px 0;
    }

    .pn-title {
        font-size: 26px;
    }

    .pn-logo-item {
        flex: 0 0 calc(50% - 8px);
        /* 2/row mobile */
    }

    .pn-logo-card {
        height: 80px;
        padding: 14px;
    }

    .pn-logo-card img {
        max-height: 46px;
    }

    .pn-group {
        margin-top: 40px;
    }
}