.vps-usecase-wrapper {
    width: 100%;
    max-width: 1200px;
    margin: 40px auto;
    font-family: "Campton", sans-serif;
}

/* Accordion Container */
.form-accordion-container {
    position: relative;
    width: 100%;
    min-height: 550px;
    margin: 0 auto;
    display: flex;
    justify-content: flex-start;
    align-items: center;
    background: transparent;
    padding: 0;
    overflow: visible;
}

/* Accordion Items (Stacked Cards) */
.form-accordion-item {
    position: absolute;
    width: calc(100% - 240px);
    /* 4 inactive tabs * 60px = 240px */
    max-width: 900px;
    height: 100%;
    background: #414059;
    /* Darker for inactive */
    border-radius: 30px;
    border: 1px solid rgba(255, 255, 255, 0.4);
    transition: transform 0.6s cubic-bezier(0.25, 1, 0.5, 1), background-color 0.4s ease;
    display: flex;
    flex-direction: column;
    justify-content: center;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
    left: 0;
    right: auto;
    margin: 0;
}

.form-accordion-item.is-active {
    background: #504f6d;
    /* Lighter for active */
    border-color: rgba(255, 255, 255, 0.6);
}

/* Content Area */
.form-accordion-content {
    padding: 40px 80px;
    /* Make room for tabs */
    color: white;
    transition: opacity 0.4s ease;
    width: 100%;
    box-sizing: border-box;
    opacity: 0;
    pointer-events: none;
}

.form-accordion-item.is-active .form-accordion-content {
    opacity: 1;
    pointer-events: auto;
    transition-delay: 0.2s;
    /* Fade in after sliding */
}

/* Vertical Title Toggle */
.form-accordion-toggle {
    position: absolute;
    top: 40px;
    bottom: 0;
    width: 60px;
    display: flex;
    align-items: flex-start;
    justify-content: center;
    z-index: 10;
    transition: left 0.6s ease, right 0.6s ease;
}

.form-accordion-item.is-next .form-accordion-toggle {
    right: 0;
    left: auto;
    cursor: default;
}

.form-accordion-item.is-active .form-accordion-toggle {
    right: 0;
    left: auto;
    cursor: default !important;
}

.form-accordion-item.is-prev .form-accordion-toggle {
    left: 0;
    right: auto;
}

.form-accordion-item.is-unlocked .form-accordion-toggle {
    cursor: pointer;
}

.form-accordion-item.is-unlocked:not(.is-active) .form-accordion-toggle:hover .form-accordion-title {
    color: #fff;
    opacity: 1;
}

/* Checkmark for validated tabs */
.form-accordion-item.is-valid .form-accordion-title::after {
    content: " \2713";
    display: inline-block;
    color: #2ecc71;
    margin-top: 8px;
    font-weight: 700;
}

/* THE FIX: Native writing-mode, NO transform rotate */
.form-accordion-toggle .form-accordion-title {
    writing-mode: vertical-lr;
    text-orientation: mixed;
    color: #fff;
    font-weight: 700;
    font-size: 16px;
    margin: 0;
    letter-spacing: 2px;
    text-transform: uppercase;
    white-space: nowrap;
    opacity: 0.7;
    transition: opacity 0.3s ease;
}

.form-accordion-item.is-active .form-accordion-toggle .form-accordion-title {
    opacity: 1;
}

/* Form Styles */
.vps-usecase-form h2 {
    color: #fff;
    font-size: 28px;
    margin-bottom: 10px;
    font-weight: 700;
    text-transform: uppercase;
}

.vps-usecase-form p.subtitle {
    font-size: 16px;
    margin-bottom: 40px;
    opacity: 0.9;
    letter-spacing: 0.5px;
}

.vps-form-group {
    margin-bottom: 25px;
}

.vps-form-group label {
    display: block;
    margin-bottom: 10px;
    font-weight: 700;
    font-size: 13px;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: #fff;
}

.vps-form-group input[type="text"],
.vps-form-group input[type="email"],
.vps-form-group input[type="tel"],
.vps-form-group textarea {
    width: 100%;
    max-width: 600px;
    background: transparent;
    border: 1px solid rgba(255, 255, 255, 0.3);
    color: #fff;
    padding: 14px 15px;
    font-size: 16px;
    border-radius: 6px;
    outline: none;
    transition: border-color 0.3s ease;
    font-family: "Campton", sans-serif;
}

.vps-form-group textarea {
    min-height: 120px;
    resize: vertical;
}

.vps-form-group input:focus,
.vps-form-group textarea:focus {
    border-color: #fff;
}

.vps-form-group input::placeholder,
.vps-form-group textarea::placeholder {
    color: rgba(255, 255, 255, 0.4);
}

/* Buttons */
.vps-btn {
    display: inline-block;
    background-color: #fff;
    color: #4a4965;
    border: none;
    padding: 12px 28px;
    font-size: 15px;
    font-weight: 700;
    border-radius: 4px;
    cursor: pointer;
    transition: background-color 0.3s ease, transform 0.1s ease;
    text-decoration: none;
    margin-top: 10px;
    text-transform: uppercase;
}

.vps-btn:hover {
    background-color: #f0f0f0;
}

.vps-btn:active {
    transform: scale(0.98);
}

.vps-btn:disabled {
    opacity: 0.7;
    cursor: not-allowed;
}

/* Grid for Contact Data */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    max-width: 600px;
}

.contact-grid .vps-form-group {
    margin-bottom: 5px;
}

/* Messages */
.vps-message {
    padding: 20px;
    border-radius: 8px;
    margin-bottom: 20px;
    color: #fff;
    font-size: 16px;
    display: none;
}

.vps-message.success {
    background-color: rgba(46, 204, 113, 0.2);
    border: 1px solid #2ecc71;
}

.vps-message.error {
    background-color: rgba(231, 76, 60, 0.2);
    border: 1px solid #e74c3c;
}

@media (max-width: 768px) {
    .form-accordion-item {
        width: calc(100% - 40px);
    }

    .contact-grid {
        grid-template-columns: 1fr;
        gap: 10px;
    }

    .form-accordion-content {
        padding: 30px 40px;
    }
}