/* === Ultra Premium Process: 3-Column Interactive Tab Layout [ID_PROCESS_TABS] === */
.process-section {
    background: #f8f9fa;
    /* Clean, cohesive light grey */
    position: relative;
    padding: var(--section-spacing, 100px) 0;
}

.process-tab-layout {
    display: flex;
    align-items: stretch;
    justify-content: space-between;
    gap: 60px;
    max-width: 1200px;
    margin: 0 auto;
}

/* =========================================
   LEFT COLUMN: Headers & Tabs
========================================= */
.pt-left {
    flex: 0 0 35%;
    display: flex;
    flex-direction: column;
}

.pt-left .section-label {
    margin-bottom: 20px;
    display: inline-block;
}

.pt-left .section-title {
    font-size: 2.8rem;
    line-height: 1.1;
    color: #0f172a;
    margin-bottom: 60px;
    text-align: left;
    letter-spacing: -1px;
}

/* Tab List */
.pt-tab-list {
    display: flex;
    flex-direction: column;
}

.pt-tab-btn {
    display: flex;
    align-items: center;
    width: 100%;
    background: transparent;
    border: none;
    border-bottom: 1px solid rgba(0, 0, 0, 0.08);
    padding: 25px 0;
    cursor: pointer;
    text-align: left;
    transition: all 0.3s ease;
}

.pt-tab-btn:first-child {
    border-top: 1px solid rgba(0, 0, 0, 0.08);
}

.pt-num {
    font-family: 'Space Mono', monospace;
    font-size: 1rem;
    font-weight: 700;
    color: #94a3b8;
    margin-right: 30px;
    transition: color 0.3s ease;
}

.pt-name {
    flex: 1;
    font-size: 1.1rem;
    font-weight: 600;
    color: #94a3b8;
    transition: color 0.3s ease;
}

.pt-arrow-inactive,
.pt-arrow-active {
    font-size: 1.2rem;
    color: #94a3b8;
    transition: color 0.3s ease;
}

.pt-arrow-active {
    display: none;
    color: #0f172a;
}

/* Active Tab State */
.pt-tab-btn.active .pt-num {
    color: #0f172a;
}

.pt-tab-btn.active .pt-name {
    color: #0f172a;
    font-weight: 800;
}

.pt-tab-btn.active .pt-arrow-inactive {
    display: none;
}

.pt-tab-btn.active .pt-arrow-active {
    display: block;
}

.pt-tab-btn:hover:not(.active) .pt-name {
    color: #64748b;
}

/* =========================================
   CENTER COLUMN: Visuals
========================================= */
.pt-center {
    flex: 0 0 30%;
    display: flex;
    align-items: stretch;
}

.pt-visual-box {
    display: none;
    /* Hidden by default */
    width: 100%;
    min-height: 500px;
    background: #ffffff;
    /* Pure white to pop off the grey background */
    border-radius: 24px;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.03);
    /* Soft elevation shadow */
}

.pt-visual-box.active {
    display: flex;
    animation: fadeScale 0.6s cubic-bezier(0.165, 0.84, 0.44, 1) forwards;
}

.pt-visual-box img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 24px;
    position: relative;
    z-index: 2;
    transition: transform 0.6s cubic-bezier(0.165, 0.84, 0.44, 1);
}

.pt-visual-box.active img {
    animation: imageScaleUp 0.8s cubic-bezier(0.165, 0.84, 0.44, 1) forwards;
}

@keyframes imageScaleUp {
    from {
        transform: scale(1.1);
        filter: blur(5px);
    }

    to {
        transform: scale(1);
        filter: blur(0);
    }
}

@keyframes fadeScale {
    from {
        opacity: 0;
        transform: scale(0.95);
    }

    to {
        opacity: 1;
        transform: scale(1);
    }
}

/* =========================================
   RIGHT COLUMN: Dynamic Content
========================================= */
.pt-right {
    flex: 0 0 25%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    /* Vertically center content like the image */
}

.pt-content-box {
    display: none;
    /* Hidden by default */
}

.pt-content-box.active {
    display: block;
    animation: slideFadeUp 0.6s cubic-bezier(0.165, 0.84, 0.44, 1) forwards;
}

@keyframes slideFadeUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.pt-tag {
    font-size: 0.8rem;
    font-weight: 800;
    letter-spacing: 2px;
    display: inline-block;
    margin-bottom: 20px;
}

.pt-content-title {
    font-size: 2rem;
    font-weight: 800;
    color: #0f172a;
    line-height: 1.2;
    margin-bottom: 20px;
    letter-spacing: -0.5px;
}

.pt-desc {
    font-size: 1.05rem;
    color: #64748b;
    line-height: 1.8;
    margin: 0;
}

/* =========================================
   RESPONSIVE DESIGN
========================================= */
@media (max-width: 1024px) {
    .process-tab-layout {
        flex-direction: column;
        gap: 40px;
        padding: 0 30px;
    }

    .pt-left,
    .pt-center,
    .pt-right {
        flex: none;
        width: 100%;
    }

    .pt-left .section-title {
        margin-bottom: 40px;
        font-size: 2.2rem;
    }

    .pt-visual-box {
        min-height: 350px;
    }

    .pt-right {
        justify-content: flex-start;
    }
    
    .pt-content-title {
        font-size: 1.8rem;
    }
}

@media (max-width: 768px) {
    .process-section {
        padding: 80px 0;
    }
    
    .pt-left .section-title {
        font-size: 1.8rem;
    }
    
    .pt-visual-box {
        min-height: 280px;
    }
    
    .pt-tab-btn {
        padding: 20px 0;
    }
    
    .pt-num {
        margin-right: 20px;
    }
}

@media (max-width: 480px) {
    .pt-left .section-title {
        font-size: 1.6rem;
    }
    
    .pt-content-title {
        font-size: 1.5rem;
    }
    
    .pt-desc {
        font-size: 1rem;
    }
}

.pm-visual {
    width: 80px;
    height: 80px;
    border-radius: 50px 50px 10px 50px;
}

.pm-hidden {
    grid-template-rows: 1fr;
}

.pm-hidden-inner {
    opacity: 1;
    transform: translateY(0);
    padding-top: 25px;
}