/* Root */
.expertise-root {
    position: relative;
    background-color: #050507;
    overflow: hidden;
    padding: 6rem var(--layout-padding-mobile);
}

/* Background image */
.expertise-bg {
    position: absolute;
    right: 0;
    top: 0;
    width: 50%;
    height: 100%;
    object-fit: cover;
    opacity: 0.06;
}

/* Container */
.expertise-container {
    max-width: var(--layout_container-maxwidth);
    margin: 0 auto;
}

/* Header */
.expertise-header {
    max-width: 680px;
    margin-bottom: 4rem;
}

.expertise-tag {
    font-family: monospace;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.25em;
    color: #00E599;
    margin-bottom: 1rem;
}

.expertise-title {
    font-family: "Outfit", system-ui, sans-serif;
    font-weight: 700;
    font-size: 1.75rem;
    color: #ffffff;
}

.expertise-subtitle {
    margin-top: 1.25rem;
    color: #cccccc;
    max-width: 520px;
    line-height: 1.6;
}

/* Grid */
.expertise-grid {
    position: relative;
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
}

/* Connector */
.expertise-connector {
    display: none;
}

@media (min-width: 640px) {
    .expertise-title {
        font-size: 2.20rem;
    }
}

@media (min-width: 1024px) {
    .expertise-root {
        padding-left: var(--layout-padding-desktop);
        padding-right: var(--layout-padding-desktop);
    }

    .expertise-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 4rem;
    }

    .expertise-connector {
        display: block;
        position: absolute;
        top: 50%;
        left: 50%;
        width: 64px;
        height: 1px;
        background-image: linear-gradient(to right, transparent 0%, #00E599 50%, transparent 100%);
        transform: translate(-50%, -50%);
        opacity: 0.4;
    }

    .expertise-title {
        font-size: 2.75rem;
    }
}

/* Column */
.expertise-column {
    position: relative;
    border-radius: 1rem;
    border: 1px solid rgba(255,255,255,0.1);
    background-color: rgba(10,10,10,0.30);
    backdrop-filter: blur(8px);
    padding: 2rem;
}

.expertise-column.accent {
    border-color: rgba(0,229,153,0.3);
    background: linear-gradient(to bottom, rgba(0,229,153,0.06), transparent);
}

/* IA Core — Accent = false */
.expertise-column:not(.accent) {
    position: relative;
    overflow: hidden;
}

/* Column header */
.expertise-column-header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1rem;
}

.expertise-column-icon {
    height: 32px;
    width: 32px;
    border-radius: 0.5rem;
    background-color: rgba(0,229,153,0.1);
    border: 1px solid rgba(0,229,153,0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #00E599;
}

.expertise-column-label {
    font-family: monospace;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    color: #00E599;
}

/* Column title */
.expertise-column-title {
    font-family: "Outfit", system-ui, sans-serif;
    font-weight: 700;
    font-size: 1.75rem;
    color: #ffffff;
    margin-bottom: 2rem;
}

/* Items */
.expertise-column-items {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.expertise-item {
    display: flex;
    gap: 1rem;
    border-radius: 0.5rem;
    border: 1px solid rgba(255,255,255,0.05);
    background-color: rgba(255,255,255,0.02);
    padding: 1rem;
    transition: all 0.4s ease;
}

    .expertise-item:hover {
        border-color: rgba(0,229,153,0.3);
        background-color: rgba(255,255,255,0.04);
    }

.expertise-item-icon {
    height: 40px;
    width: 40px;
    border-radius: 0.5rem;
    background-color: #0A0A0A;
    border: 1px solid rgba(255,255,255,0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #00E599;
}

.expertise-item-title {
    font-family: "Outfit", system-ui, sans-serif;
    font-weight: 600;
    color: #ffffff;
}

.expertise-item-desc {
    margin-top: 0.25rem;
    color: #cccccc;
    font-size: 0.875rem;
    line-height: 1.5;
}