/* Mineral Parallax Backgrounds */
.bg-mineral-drift {
    position: relative;
    overflow: hidden;
}

.bg-mineral-drift::before {
    content: '';
    position: absolute;
    inset: -20%;
    background-image: url('/assets/images/case_overlay.png');
    background-size: cover;
    background-position: center;
    opacity: 0.2;
    mix-blend-mode: multiply;
    z-index: 0;
    transform: translateY(var(--drift-y, 0px));
    will-change: transform;
    pointer-events: none;
}

.bg-mineral-drift>* {
    position: relative;
    z-index: 1;
}

/* Signature Card Cut-Through (Apple-style Window) */
.cut-through-card {
    background: radial-gradient(circle at 50% 50%, rgba(143, 155, 138, 0.3) 0%, rgba(194, 168, 149, 0.2) 100%);
    background-attachment: fixed;
    border: 1px solid rgba(0, 0, 0, 0.05);
    border-radius: 8px;
    padding: var(--space-8);
    position: relative;
    overflow: hidden;
}

.cut-through-card::after {
    content: '';
    position: absolute;
    inset: 0;
    box-shadow: inset 0 2px 10px rgba(0, 0, 0, 0.02);
    pointer-events: none;
    border-radius: 8px;
}

/* Smooth Scroll Entry Motion */
.motion-entry {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 600ms cubic-bezier(0.16, 1, 0.3, 1),
        transform 600ms cubic-bezier(0.16, 1, 0.3, 1);
}

.motion-entry.is-visible {
    opacity: 1;
    transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
    .motion-entry {
        transition: none;
        opacity: 1;
        transform: none;
    }

    .bg-mineral-drift::before {
        transition: none;
        transform: none !important;
    }
}

/* V7 Clean List Accordion */
.adoption-sequence-container {
    display: flex;
    flex-direction: column;
    gap: 120px;
    /* Massive breathing room */
}

.sequence-step {
    opacity: 0.25;
    transition: opacity 500ms cubic-bezier(0.16, 1, 0.3, 1), transform 500ms cubic-bezier(0.16, 1, 0.3, 1);
    transform: translateY(15px);
}

.sequence-step.is-active {
    opacity: 1;
    transform: translateY(0);
}

.sequence-step-header {
    display: flex;
    align-items: center;
    gap: var(--space-6);
    margin-bottom: var(--space-4);
}

.sequence-step .icon-block {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    background-color: var(--color-surface);
    border: 2px solid var(--color-border);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-accent-sage);
    flex-shrink: 0;
    transition: border-color 300ms ease, background-color 300ms ease;
}

.sequence-step.is-active .icon-block {
    border-color: var(--color-accent-sage);
    background-color: var(--color-base);
}

.sequence-step .icon-block svg {
    width: 32px;
    height: 32px;
}

.sequence-step h3 {
    font-size: var(--text-h2);
    margin: 0;
    font-weight: 400;
    letter-spacing: -0.02em;
}

.sequence-step .takeaway {
    font-size: var(--text-h4);
    color: var(--color-text-primary);
    line-height: var(--line-height-base);
    margin-bottom: var(--space-2);
    display: block;
    max-width: 65ch;
    padding-left: 88px;
    /* 64px icon + 24px gap */
}

@media (max-width: 768px) {
    .sequence-step-header {
        align-items: flex-start;
        flex-direction: column;
    }

    .sequence-step .takeaway {
        padding-left: 0;
    }

    .sequence-step-science {
        padding-left: 0 !important;
    }
}

/* Smooth Accordion Dropdown */
.sequence-step-science {
    padding-left: 88px;
    margin-top: var(--space-4);
    position: relative;
}

.science-summary {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--text-body-small);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-weight: 600;
    color: var(--color-text-secondary);
    cursor: pointer;
    user-select: none;
    padding: 6px 12px;
    margin-left: -12px;
    /* Offset the padding to visually align with text */
    border-radius: 4px;
    transition: color 200ms ease, background-color 200ms ease;
}

.science-summary:hover {
    color: var(--color-accent-sage);
}

.science-summary .dropdown-icon {
    transition: transform 500ms cubic-bezier(0.16, 1, 0.3, 1);
}

.sequence-step-science.is-expanded .dropdown-icon {
    transform: rotate(180deg);
}

/* Elegant CSS Grid Height Transition */
.science-content-wrapper {
    position: absolute;
    top: 100%;
    left: 88px;
    width: calc(100% - 88px);
    z-index: 10;
    display: grid;
    grid-template-rows: 0fr;
    transition: grid-template-rows 500ms cubic-bezier(0.16, 1, 0.3, 1);
}

.sequence-step-science.is-expanded .science-content-wrapper {
    grid-template-rows: 1fr;
}

.science-content {
    overflow: hidden;
}

.science-content-inner {
    margin-top: var(--space-4);
    font-size: var(--text-body);
    color: var(--color-text-secondary);
    border-left: 2px solid var(--color-border);
    padding-left: var(--space-6);
    max-width: 65ch;
    padding-bottom: 2px;
}

/* Smooth sweeping character reveal */
.char-reveal {
    opacity: 0;
    transition: opacity 600ms cubic-bezier(0.16, 1, 0.3, 1);
}

.char-reveal.is-visible {
    opacity: 1;
}

.typewriter-cursor {
    border-right: 2px solid var(--color-accent-sage);
    padding-right: 4px;
    animation: blink-caret 0.75s step-end infinite;
}

@keyframes blink-caret {

    from,
    to {
        border-color: transparent;
    }

    50% {
        border-color: var(--color-accent-sage);
    }
}