/* =========================================================
   বিয়েকরবো.কম - About Us Page Styling (Modern, Clean & Responsive)
   ========================================================= */
.bka-wrapper {
    background: #f8fafc;
    min-height: calc(100vh - 200px);
    padding-bottom: 70px;
    font-family: 'Anek Bangla', -apple-system, BlinkMacSystemFont, sans-serif;
    color: #1e293b;
}

/* 1. Hero Section */
.bka-hero {
    background: linear-gradient(135deg, #fdf4f8 0%, #f0fdfa 50%, #f5f3ff 100%);
    border-bottom: 1px solid rgba(14, 165, 233, 0.1);
    padding: 55px 0 50px;
    position: relative;
    overflow: hidden;
    text-align: center;
}
.bka-hero::before {
    content: '';
    position: absolute;
    top: -80px;
    right: -80px;
    width: 320px;
    height: 320px;
    background: radial-gradient(circle, rgba(233, 47, 131, 0.08) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
}
.bka-hero::after {
    content: '';
    position: absolute;
    bottom: -60px;
    left: -60px;
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(10, 164, 185, 0.08) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
}
.bka-hero-content {
    max-width: 820px;
    margin: 0 auto;
    position: relative;
    z-index: 2;
    padding: 0 15px;
}
.bka-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 18px;
    background: #ffffff;
    border: 1px solid rgba(233, 47, 131, 0.2);
    border-radius: 50px;
    font-size: 0.92rem;
    font-weight: 700;
    color: #e92f83;
    box-shadow: 0 4px 15px rgba(233, 47, 131, 0.08);
    margin-bottom: 22px;
}
.bka-hero-title {
    font-size: 2.75rem;
    font-weight: 800;
    line-height: 1.28;
    color: #0f172a;
    margin-bottom: 18px;
}
.bka-hero-title span.highlight {
    background: linear-gradient(135deg, #e92f83 0%, #0aa4b9 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.bka-hero-desc {
    font-size: 1.15rem;
    line-height: 1.75;
    color: #475569;
    margin-bottom: 30px;
    max-width: 740px;
    margin-left: auto;
    margin-right: auto;
}
.bka-hero-actions {
    display: flex;
    justify-content: center;
    gap: 15px;
    flex-wrap: wrap;
}
.bka-btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 9px;
    background: linear-gradient(135deg, #e92f83 0%, #c91e5e 100%);
    color: #ffffff !important;
    padding: 13px 28px;
    border-radius: 14px;
    font-size: 1.05rem;
    font-weight: 700;
    text-decoration: none;
    box-shadow: 0 8px 25px rgba(233, 47, 131, 0.28);
    transition: all 0.25s ease;
}
.bka-btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 30px rgba(233, 47, 131, 0.38);
}
.bka-btn-secondary {
    display: inline-flex;
    align-items: center;
    gap: 9px;
    background: #ffffff;
    color: #0aa4b9 !important;
    border: 1.5px solid #0aa4b9;
    padding: 13px 28px;
    border-radius: 14px;
    font-size: 1.05rem;
    font-weight: 700;
    text-decoration: none;
    box-shadow: 0 4px 15px rgba(10, 164, 185, 0.1);
    transition: all 0.25s ease;
}
.bka-btn-secondary:hover {
    background: #f0fdfa;
    transform: translateY(-2px);
}

/* 2. Platform Live Stats */
.bka-stats-section {
    margin-top: -35px;
    position: relative;
    z-index: 3;
    padding: 0 15px;
}
.bka-stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    max-width: 1140px;
    margin: 0 auto;
}
.bka-stat-card {
    background: #ffffff;
    border-radius: 20px;
    padding: 22px 20px;
    display: flex;
    align-items: center;
    gap: 16px;
    border: 1px solid #f1f5f9;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
    transition: all 0.25s ease;
}
.bka-stat-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 14px 35px rgba(0, 0, 0, 0.08);
}
.bka-stat-icon {
    width: 54px;
    height: 54px;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
    flex-shrink: 0;
}
.bka-stat-icon.pink { background: #fdf2f8; color: #e92f83; }
.bka-stat-icon.teal { background: #f0fdfa; color: #0aa4b9; }
.bka-stat-icon.green { background: #ecfdf5; color: #059669; }
.bka-stat-icon.amber { background: #fffbeb; color: #d97706; }

.bka-stat-num {
    font-size: 1.65rem;
    font-weight: 800;
    color: #0f172a;
    line-height: 1.15;
}
.bka-stat-lbl {
    font-size: 0.9rem;
    font-weight: 600;
    color: #64748b;
    margin-top: 3px;
}

/* Common Section Header */
.bka-section-head {
    text-align: center;
    max-width: 720px;
    margin: 60px auto 40px;
    padding: 0 15px;
}
.bka-section-tag {
    display: inline-block;
    padding: 5px 14px;
    background: #fdf2f8;
    color: #e92f83;
    border-radius: 30px;
    font-size: 0.85rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 12px;
}
.bka-section-title {
    font-size: 2.15rem;
    font-weight: 800;
    color: #0f172a;
    line-height: 1.32;
    margin-bottom: 14px;
}
.bka-section-sub {
    font-size: 1.05rem;
    color: #64748b;
    line-height: 1.65;
}

/* 3. Story & Mission Section */
.bka-mission-grid {
    display: grid;
    grid-template-columns: 1.15fr 0.85fr;
    gap: 35px;
    align-items: center;
    max-width: 1140px;
    margin: 0 auto;
    padding: 0 15px;
}
.bka-story-card {
    background: #ffffff;
    border-radius: 24px;
    padding: 38px 34px;
    border: 1px solid #f1f5f9;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.04);
}
.bka-story-card h3 {
    font-size: 1.65rem;
    font-weight: 800;
    color: #0f172a;
    margin-bottom: 18px;
    line-height: 1.35;
}
.bka-story-card p {
    font-size: 1.05rem;
    color: #475569;
    line-height: 1.75;
    margin-bottom: 20px;
}
.bka-points-list {
    list-style: none;
    padding: 0;
    margin: 25px 0 0;
    display: flex;
    flex-direction: column;
    gap: 14px;
}
.bka-point-item {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    font-size: 1rem;
    font-weight: 600;
    color: #1e293b;
}
.bka-point-check {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: #ecfdf5;
    color: #059669;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    flex-shrink: 0;
    margin-top: 2px;
}

.bka-trust-card {
    background: linear-gradient(135deg, #1e1b4b 0%, #312e81 60%, #4c1d95 100%);
    border-radius: 24px;
    padding: 40px 32px;
    color: #ffffff;
    box-shadow: 0 15px 40px rgba(30, 27, 75, 0.22);
    position: relative;
    overflow: hidden;
}
.bka-trust-card::after {
    content: '';
    position: absolute;
    right: -40px;
    bottom: -40px;
    width: 200px;
    height: 200px;
    background: radial-gradient(circle, rgba(233, 47, 131, 0.25) 0%, transparent 70%);
    border-radius: 50%;
}
.bka-trust-badge {
    width: 60px;
    height: 60px;
    background: rgba(255, 255, 255, 0.12);
    backdrop-filter: blur(8px);
    border-radius: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    color: #fbbf24;
    margin-bottom: 22px;
}
.bka-trust-card h4 {
    font-size: 1.55rem;
    font-weight: 800;
    color: #ffffff;
    margin-bottom: 12px;
}
.bka-trust-card p {
    font-size: 1rem;
    color: #cbd5e1;
    line-height: 1.7;
    margin-bottom: 25px;
}
.bka-trust-stats-box {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
    background: rgba(255, 255, 255, 0.08);
    border-radius: 16px;
    padding: 16px;
    border: 1px solid rgba(255, 255, 255, 0.1);
}
.bka-tstat h5 {
    font-size: 1.4rem;
    font-weight: 800;
    color: #fbbf24;
    margin: 0;
}
.bka-tstat span {
    font-size: 0.85rem;
    color: #e2e8f0;
}

/* 4. Core Pillars Grid (6 Modern Cards) */
.bka-pillars-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 25px;
    max-width: 1140px;
    margin: 0 auto;
    padding: 0 15px;
}
.bka-pillar-card {
    background: #ffffff;
    border-radius: 20px;
    padding: 30px 24px;
    border: 1px solid #f1f5f9;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.03);
    transition: all 0.25s ease;
    display: flex;
    flex-direction: column;
}
.bka-pillar-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.07);
    border-color: rgba(233, 47, 131, 0.25);
}
.bka-pillar-icon {
    width: 58px;
    height: 58px;
    border-radius: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin-bottom: 20px;
}
.bka-pillar-icon.p1 { background: #fdf2f8; color: #e92f83; }
.bka-pillar-icon.p2 { background: #f0fdfa; color: #0aa4b9; }
.bka-pillar-icon.p3 { background: #ecfdf5; color: #059669; }
.bka-pillar-icon.p4 { background: #fffbeb; color: #d97706; }
.bka-pillar-icon.p5 { background: #f5f3ff; color: #7c3aed; }
.bka-pillar-icon.p6 { background: #eff6ff; color: #2563eb; }

.bka-pillar-card h4 {
    font-size: 1.25rem;
    font-weight: 800;
    color: #0f172a;
    margin-bottom: 10px;
}
.bka-pillar-card p {
    font-size: 0.98rem;
    color: #64748b;
    line-height: 1.65;
    margin: 0;
}

/* 5. Three Simple Steps Section */
.bka-steps-wrap {
    max-width: 1140px;
    margin: 0 auto;
    padding: 0 15px;
}
.bka-steps-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 25px;
    position: relative;
}
.bka-step-card {
    background: #ffffff;
    border-radius: 20px;
    padding: 32px 24px;
    border: 1px solid #f1f5f9;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.03);
    text-align: center;
    position: relative;
}
.bka-step-num {
    position: absolute;
    top: 18px;
    right: 20px;
    font-size: 1.3rem;
    font-weight: 800;
    color: #e2e8f0;
}
.bka-step-icon {
    width: 65px;
    height: 65px;
    border-radius: 20px;
    background: linear-gradient(135deg, #fdf2f8 0%, #f0fdfa 100%);
    border: 1px solid rgba(233, 47, 131, 0.15);
    color: #e92f83;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.6rem;
    margin: 0 auto 20px;
}
.bka-step-card h4 {
    font-size: 1.25rem;
    font-weight: 800;
    color: #0f172a;
    margin-bottom: 10px;
}
.bka-step-card p {
    font-size: 0.98rem;
    color: #64748b;
    line-height: 1.65;
    margin: 0;
}

/* 6. Comparison / Trust Pledge Box */
.bka-pledge-box {
    max-width: 1140px;
    margin: 55px auto 0;
    padding: 0 15px;
}
.bka-pledge-card {
    background: #ffffff;
    border-radius: 24px;
    border: 1px solid #f1f5f9;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.04);
    overflow: hidden;
    display: grid;
    grid-template-columns: 1fr 1fr;
}
.bka-pledge-side {
    padding: 35px 30px;
}
.bka-pledge-side.allowed {
    background: #ffffff;
    border-right: 1px solid #f1f5f9;
}
.bka-pledge-side.blocked {
    background: #fffafa;
}
.bka-pledge-title {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.25rem;
    font-weight: 800;
    margin-bottom: 20px;
}
.bka-pledge-title.green { color: #059669; }
.bka-pledge-title.red { color: #dc2626; }

.bka-pledge-items {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 14px;
}
.bka-pledge-item {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    font-size: 0.98rem;
    color: #334155;
    line-height: 1.55;
}
.bka-pledge-item i {
    margin-top: 3px;
    font-size: 0.95rem;
}
.bka-pledge-item.green i { color: #059669; }
.bka-pledge-item.red i { color: #dc2626; }

/* 7. Call To Action (CTA) Banner */
.bka-cta-section {
    max-width: 1140px;
    margin: 60px auto 0;
    padding: 0 15px;
}
.bka-cta-box {
    background: linear-gradient(135deg, #1e1b4b 0%, #312e81 40%, #831843 100%);
    border-radius: 26px;
    padding: 48px 36px;
    text-align: center;
    color: #ffffff;
    position: relative;
    overflow: hidden;
    box-shadow: 0 16px 45px rgba(30, 27, 75, 0.25);
}
.bka-cta-box::before {
    content: '';
    position: absolute;
    top: -50px;
    right: -50px;
    width: 250px;
    height: 250px;
    background: radial-gradient(circle, rgba(233, 47, 131, 0.3) 0%, transparent 70%);
    border-radius: 50%;
}
.bka-cta-box::after {
    content: '';
    position: absolute;
    bottom: -50px;
    left: -50px;
    width: 250px;
    height: 250px;
    background: radial-gradient(circle, rgba(10, 164, 185, 0.25) 0%, transparent 70%);
    border-radius: 50%;
}
.bka-cta-inner {
    max-width: 680px;
    margin: 0 auto;
    position: relative;
    z-index: 2;
}
.bka-cta-box h3 {
    font-size: 2.15rem;
    font-weight: 800;
    color: #ffffff;
    margin-bottom: 14px;
    line-height: 1.35;
}
.bka-cta-box p {
    font-size: 1.05rem;
    color: #cbd5e1;
    line-height: 1.7;
    margin-bottom: 30px;
}
.bka-cta-buttons {
    display: flex;
    justify-content: center;
    gap: 15px;
    flex-wrap: wrap;
}
.bka-cta-btn-white {
    display: inline-flex;
    align-items: center;
    gap: 9px;
    background: #ffffff;
    color: #0f172a !important;
    padding: 13px 30px;
    border-radius: 14px;
    font-size: 1.05rem;
    font-weight: 800;
    text-decoration: none;
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
    transition: all 0.25s ease;
}
.bka-cta-btn-white:hover {
    transform: translateY(-2px);
    background: #f8fafc;
}
.bka-cta-btn-glass {
    display: inline-flex;
    align-items: center;
    gap: 9px;
    background: rgba(255, 255, 255, 0.12);
    backdrop-filter: blur(10px);
    border: 1.5px solid rgba(255, 255, 255, 0.3);
    color: #ffffff !important;
    padding: 13px 30px;
    border-radius: 14px;
    font-size: 1.05rem;
    font-weight: 700;
    text-decoration: none;
    transition: all 0.25s ease;
}
.bka-cta-btn-glass:hover {
    background: rgba(255, 255, 255, 0.22);
    transform: translateY(-2px);
}

/* Responsive adjustments */
@media (max-width: 991px) {
    .bka-hero-title { font-size: 2.25rem; }
    .bka-stats-grid { grid-template-columns: repeat(2, 1fr); gap: 15px; }
    .bka-mission-grid { grid-template-columns: 1fr; }
    .bka-pillars-grid { grid-template-columns: repeat(2, 1fr); gap: 18px; }
    .bka-pledge-card { grid-template-columns: 1fr; }
    .bka-pledge-side.allowed { border-right: none; border-bottom: 1px solid #f1f5f9; }
}

@media (max-width: 767px) {
    .bka-hero { padding: 40px 0 45px; }
    .bka-hero-title { font-size: 1.85rem; }
    .bka-hero-desc { font-size: 1rem; }
    .bka-stats-grid { grid-template-columns: 1fr 1fr; gap: 12px; }
    .bka-stat-card { padding: 16px 14px; gap: 12px; }
    .bka-stat-icon { width: 44px; height: 44px; font-size: 1.15rem; }
    .bka-stat-num { font-size: 1.35rem; }
    .bka-stat-lbl { font-size: 0.8rem; }
    .bka-pillars-grid { grid-template-columns: 1fr; }
    .bka-steps-grid { grid-template-columns: 1fr; gap: 18px; }
    .bka-section-title { font-size: 1.65rem; }
    .bka-story-card { padding: 25px 20px; }
    .bka-trust-card { padding: 28px 20px; }
    .bka-cta-box { padding: 36px 20px; }
    .bka-cta-box h3 { font-size: 1.65rem; }
    .bka-hero-actions, .bka-cta-buttons { flex-direction: column; width: 100%; }
    .bka-btn-primary, .bka-btn-secondary, .bka-cta-btn-white, .bka-cta-btn-glass { width: 100%; justify-content: center; }
}