/* ==========================================================================
   Core Pillars Section - Modern Grid & Iconized Cards
   ========================================================================== */

.pillars-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 1.4rem;
    padding: 0.4rem 0.2rem;
}

.pillar-card {
    background: #ffffff;
    border: 1px solid #e2e8f0;
    border-top: 4px solid var(--brand-blue, #164282);
    border-radius: 12px;
    padding: 1.4rem 1.3rem;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.03);
    transition: transform 0.25s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.25s ease;
    display: flex;
    flex-direction: column;
}

.pillar-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 22px rgba(0, 0, 0, 0.07);
}

/* ভ্যারিয়েন্ট টপ বর্ডার */
.pillar-card.card-orange { border-top-color: #ea580c; }
.pillar-card.card-green  { border-top-color: #10b981; }
.pillar-card.card-blue   { border-top-color: #2563eb; }
.pillar-card.card-teal   { border-top-color: #0d9488; }

/* কার্ড হেডার ও আইকন বক্স */
.pillar-header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1rem;
    border-bottom: 1px solid #f1f5f9;
    padding-bottom: 0.75rem;
}

.pillar-icon-box {
    width: 42px;
    height: 42px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.pillar-icon-box.orange { background: #fff7ed; color: #ea580c; border: 1px solid #ffedd5; }
.pillar-icon-box.green  { background: #ecfdf5; color: #10b981; border: 1px solid #d1fae5; }
.pillar-icon-box.blue   { background: #eff6ff; color: #2563eb; border: 1px solid #dbeafe; }
.pillar-icon-box.teal   { background: #f0fdfa; color: #0d9488; border: 1px solid #ccfbf1; }

.pillar-title {
    font-size: 1.05rem;
    font-weight: 800;
    color: var(--brand-navy, #0f172a);
    margin: 0;
    line-height: 1.3;
}

/* কাস্টম মার্কার বুলেট লিস্ট */
.pillar-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
}

.pillar-list li {
    position: relative;
    padding-left: 1.25rem;
    font-size: 0.86rem;
    color: #475569;
    line-height: 1.5;
}

.pillar-list li::before {
    content: "•";
    position: absolute;
    left: 0;
    top: -1px;
    font-size: 1.2rem;
    line-height: 1;
}

.pillar-card.card-orange .pillar-list li::before { color: #ea580c; }
.pillar-card.card-green  .pillar-list li::before { color: #10b981; }
.pillar-card.card-blue   .pillar-list li::before { color: #2563eb; }
.pillar-card.card-teal   .pillar-list li::before { color: #0d9488; }

/* মোবাইল রেসপনসিভ */
@media (max-width: 600px) {
    .pillars-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .pillar-card {
        padding: 1.15rem 1.1rem;
    }

    .pillar-icon-box {
        width: 38px;
        height: 38px;
    }

    .pillar-title {
        font-size: 1rem;
    }

    .pillar-list li {
        font-size: 0.83rem;
    }
}