/* R&D Hero Section */
.rd-hero {
    background-color: #000;
    padding: 120px 0;
    text-align: center;
    background-image: linear-gradient(rgba(0, 0, 0, 0.7), rgba(0, 0, 0, 0.7)), url('../images/rd-hero-bg.webp');
    background-size: cover;
    background-position: center;
    position: relative;
}

.rd-hero-content {
    position: relative;
    z-index: 1;
    color: #fff;
    max-width: 800px;
    margin: 0 auto;
}

.rd-hero h1 {
    font-size: 56px;
    font-weight: 700;
    margin-bottom: 30px;
}

.rd-hero .subtitle {
    font-size: 24px;
    line-height: 1.6;
    color: rgba(255, 255, 255, 0.9);
}

/* Process Overview Section */
.process-overview {
    padding: 100px 0;
    background: #fff;
}

.overview-content {
    max-width: 900px;
    margin: 0 auto;
    text-align: center;
}

.overview-content h2 {
    font-size: 42px;
    color: #222;
    margin-bottom: 30px;
    font-weight: 600;
}

.overview-content .intro-text {
    font-size: 18px;
    line-height: 1.8;
    color: #555;
}

/* Development Process Section */
.development-process {
    padding: 100px 0 140px;
    background: linear-gradient(180deg, #f8f9fa 0%, #fff 100%);
    position: relative;
}

.process-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 50px;
    margin-bottom: 80px;
}

.process-item {
    background: #fff;
    padding: 45px;
    border-radius: 24px;
    position: relative;
    transition: all 0.4s cubic-bezier(0.165, 0.84, 0.44, 1);
    border: 1px solid rgba(0,0,0,0.05);
    overflow: hidden;
}

.process-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(227, 30, 36, 0.05) 0%, rgba(227, 30, 36, 0) 100%);
    opacity: 0;
    transition: all 0.4s ease;
}

.process-item:hover {
    transform: translateY(-15px);
    box-shadow: 0 30px 60px rgba(0,0,0,0.1);
    border-color: rgba(227, 30, 36, 0.2);
}

.process-item:hover::before {
    opacity: 1;
}

.process-header {
    display: flex;
    align-items: center;
    margin-bottom: 30px;
    gap: 25px;
    position: relative;
}

.process-number {
    font-size: 48px;
    font-weight: 700;
    background: linear-gradient(135deg, #e31e24 0%, #ff4b52 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    line-height: 1;
    letter-spacing: -1px;
}

.process-icon {
    width: 64px;
    height: 64px;
    background: #fff;
    border-radius: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.5s cubic-bezier(0.165, 0.84, 0.44, 1);
    box-shadow: 0 8px 20px rgba(0,0,0,0.06);
    position: relative;
    z-index: 1;
}

.process-icon::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: 18px;
    padding: 2px;
    background: linear-gradient(135deg, #e31e24 0%, #ff4b52 100%);
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
}

.process-icon i {
    font-size: 26px;
    background: linear-gradient(135deg, #e31e24 0%, #ff4b52 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    transition: all 0.5s ease;
}

.process-item:hover .process-icon {
    background: linear-gradient(135deg, #e31e24 0%, #ff4b52 100%);
    transform: rotate(360deg);
}

.process-item:hover .process-icon i {
    background: #fff;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.process-item h3 {
    font-size: 26px;
    color: #222;
    margin-bottom: 20px;
    font-weight: 600;
    line-height: 1.3;
    position: relative;
}

.process-item p {
    font-size: 16px;
    line-height: 1.8;
    color: #666;
    margin: 0;
    position: relative;
}

.process-footer {
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
    font-size: 22px;
    line-height: 1.7;
    color: #444;
    font-weight: 500;
    padding: 0 20px;
    position: relative;
}

.process-footer::before {
    content: '';
    position: absolute;
    top: -40px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 3px;
    background: linear-gradient(135deg, #e31e24 0%, #ff4b52 100%);
    border-radius: 2px;
}

/* Responsive Design */
@media (max-width: 1200px) {
    .process-grid {
        gap: 40px;
    }

    .process-item {
        padding: 40px;
    }
}

@media (max-width: 992px) {
    .development-process {
        padding: 80px 0 100px;
    }

    .process-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .process-item {
        padding: 35px;
    }

    .process-header {
        margin-bottom: 25px;
        gap: 20px;
    }

    .process-number {
        font-size: 42px;
    }

    .process-icon {
        width: 56px;
        height: 56px;
        border-radius: 16px;
    }

    .process-icon i {
        font-size: 24px;
    }

    .process-item h3 {
        font-size: 24px;
        margin-bottom: 15px;
    }
}

@media (max-width: 768px) {
    .development-process {
        padding: 60px 0 80px;
    }

    .process-grid {
        gap: 25px;
    }

    .process-item {
        padding: 30px;
    }

    .process-header {
        margin-bottom: 20px;
        gap: 15px;
    }

    .process-number {
        font-size: 38px;
    }

    .process-icon {
        width: 50px;
        height: 50px;
        border-radius: 14px;
    }

    .process-icon i {
        font-size: 22px;
    }

    .process-item h3 {
        font-size: 22px;
    }

    .process-footer {
        font-size: 18px;
    }
}