.approach-section {
    font-family: var(--font-primary);
    background: #f0f9ff;
    padding: 3rem;
    padding-bottom: 5rem;
}

.approach-section .container {
    max-width: 1100px;
    margin: 0 auto;
}

.approach-section .header {
    text-align: center;
    margin-bottom: 3rem;
}

.approach-section h1 {
    font-family: var(--font-display);
    font-size: var(--font-size-h2);
    font-weight: var(--font-weight-bold);
    color: #000000;
    margin-bottom: 0.5rem;
}

.approach-section .subtitle {
    font-family: var(--font-primary);
    font-size: var(--font-size-large);
    color: #64748b;
    font-weight: var(--font-weight-normal);
}

.approach-section .services {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2.5rem;
}

.approach-section .flip-card {
    background-color: transparent;
    width: 100%;
    height: 500px;
    perspective: 1000px;
}

.approach-section .flip-card-inner {
    position: relative;
    width: 100%;
    height: 100%;
    text-align: center;
    transition: transform 0.6s;
    transform-style: preserve-3d;
}

.approach-section .flip-card:hover .flip-card-inner {
    transform: rotateY(180deg);
}

.approach-section .flip-card-front,
.approach-section .flip-card-back {
    position: absolute;
    width: 100%;
    height: 100%;
    -webkit-backface-visibility: hidden;
    backface-visibility: hidden;
    border-radius: 20px;
    box-shadow: 0 8px 25px rgba(125, 211, 252, 0.2);
}

.approach-section .flip-card-front {
    background: #7dd3fc;
    color: white;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: 2rem;
}

.approach-section .flip-card-back {
    background: white;
    color: #374151;
    transform: rotateY(180deg);
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
}

.approach-section .front-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.approach-section .front-subtitle {
    font-size: 1.2rem;
    font-weight: 500;
    opacity: 0.95;
    margin-bottom: 1.5rem;
}

.approach-section .test-tag {
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.3);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 600;
}

.approach-section .hover-hint {
    position: absolute;
    bottom: 1rem;
    left: 50%;
    transform: translateX(-50%);
    font-size: 0.8rem;
    opacity: 0.8;
    font-style: italic;
}

.approach-section .back-title {
    font-size: 1.8rem;
    font-weight: 700;
    color: #1e40af;
    margin-bottom: 1rem;
    text-align: center;
}

.approach-section .back-description {
    font-size: 0.9rem;
    line-height: 1.5;
    margin-bottom: 1.2rem;
    text-align: center;
}

.approach-section .features {
    list-style: none;
    margin-bottom: 1.2rem;
    flex: 1;
}

.approach-section .feature {
    display: flex;
    align-items: flex-start;
    margin-bottom: 0.6rem;
    padding: 0.3rem 0;
}

.approach-section .feature-bullet {
    width: 6px;
    height: 6px;
    background: #7dd3fc;
    border-radius: 50%;
    margin-right: 0.75rem;
    margin-top: 0.5rem;
    flex-shrink: 0;
}

.approach-section .feature-text {
    font-size: 0.9rem;
    line-height: 1.4;
}

.approach-section .subjects {
    margin-bottom: 1.2rem;
}

.approach-section .subjects-title {
    font-size: 0.9rem;
    font-weight: 600;
    color: #1e40af;
    margin-bottom: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    text-align: center;
}

.approach-section .cta-button {
    background: #3b82f6;
    color: white;
    border: none;
    padding: 0.9rem 1.5rem;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    width: 100%;
    transition: background 0.2s ease;
    margin-top: auto;
}

.approach-section .cta-button:hover {
    background: #2563eb;
}

/* Mobile Responsive */
@media (max-width: 768px) {
    .approach-section .services {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .approach-section .flip-card {
        height: 420px;
    }

    .approach-section h1 {
        font-size: 2.2rem;
    }

    .approach-section {
        padding: 1rem;
    }

    .approach-section .front-title {
        font-size: 2rem;
    }

    .approach-section .front-subtitle {
        font-size: 1rem;
    }

    .approach-section .flip-card-back {
        padding: 1.2rem;
        overflow-y: auto;
    }

    .approach-section .back-title {
        font-size: 1.4rem;
        margin-bottom: 0.8rem;
    }

    .approach-section .back-description {
        font-size: 0.85rem;
        line-height: 1.4;
        margin-bottom: 1rem;
    }

    .approach-section .features {
        margin-bottom: 1rem;
    }

    .approach-section .feature {
        margin-bottom: 0.4rem;
        padding: 0.2rem 0;
    }

    .approach-section .feature-text {
        font-size: 0.8rem;
        line-height: 1.3;
    }

    .approach-section .cta-button {
        padding: 0.8rem 1.2rem;
        font-size: 0.9rem;
        margin-top: auto;
        flex-shrink: 0;
    }
}

/* shows back on tap */
@media (hover: none) {
    .approach-section .flip-card:active .flip-card-inner {
        transform: rotateY(180deg);
    }
}