.pillars-section {
    padding: var(--k-section-space) 0;
    background:
        radial-gradient(circle at 12% 8%, rgba(38,151,232,.055), transparent 22%),
        linear-gradient(180deg, #ffffff 0%, #fbfdff 100%);
}

.pillars-intro {
    display: grid;
    grid-template-columns: .9fr 1.1fr;
    gap: clamp(2rem, 6vw, 6rem);
    align-items: end;
    margin-bottom: clamp(2.5rem, 6vw, 5rem);
}

.pillars-intro__title {
    margin: 0;
    font-size: clamp(2.6rem, 6vw, 5.2rem);
    line-height: .98;
    letter-spacing: -.055em;
    text-wrap: balance;
}

.pillars-intro__body {
    margin: 0;
    color: var(--k-text-secondary);
    font-size: clamp(1.08rem, 2vw, 1.35rem);
    line-height: 1.65;
    max-width: 720px;
}

.pillars-grid {
    display: grid;
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: 1rem;
}

.pillar-card {
    position: relative;
    min-height: 440px;
    overflow: hidden;
    border: 1px solid var(--k-border);
    border-radius: 28px;
    background: var(--k-white);
    box-shadow: var(--k-shadow-xs);
    transition:
        transform var(--k-duration-normal) var(--k-ease-standard),
        box-shadow var(--k-duration-normal) var(--k-ease-standard),
        border-color var(--k-duration-normal) var(--k-ease-standard);
}

.pillar-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--k-shadow-md);
    border-color: var(--k-blue-200);
}

.pillar-card::before {
    content: "";
    position: absolute;
    inset: 0 0 auto 0;
    height: 4px;
    background: linear-gradient(90deg, var(--k-blue-300), var(--k-blue-600));
}

.pillar-card__body {
    position: relative;
    z-index: 1;
    display: flex;
    flex-direction: column;
    min-height: 100%;
    padding: 1.4rem;
}

.pillar-card__index {
    display: inline-flex;
    width: 38px;
    height: 38px;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: var(--k-blue-050);
    border: 1px solid var(--k-blue-200);
    color: var(--k-blue-700);
    font-size: .75rem;
    font-weight: var(--k-weight-bold);
    letter-spacing: .08em;
}

.pillar-card h3 {
    margin: 1.2rem 0 .6rem;
    font-size: clamp(1.4rem, 2vw, 1.8rem);
    line-height: 1.05;
    letter-spacing: -.035em;
}

.pillar-card__summary {
    margin: 0;
    min-height: 72px;
    color: var(--k-text-secondary);
    font-size: .93rem;
    line-height: 1.55;
}

.pillar-card__list {
    list-style: none;
    padding: 0;
    margin: 1.25rem 0 0;
    display: grid;
    gap: .56rem;
}

.pillar-card__list li {
    display: flex;
    align-items: center;
    gap: .55rem;
    color: var(--k-ink-700);
    font-size: .82rem;
    line-height: 1.35;
}

.pillar-card__list li::before {
    content: "";
    flex: 0 0 auto;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--k-blue-500);
    box-shadow: 0 0 0 4px rgba(38,151,232,.07);
}

.pillars-flow {
    margin-top: clamp(3rem, 6vw, 5rem);
    border: 1px solid var(--k-border);
    border-radius: clamp(24px, 4vw, 38px);
    background:
        radial-gradient(circle at 80% 10%, rgba(38,151,232,.08), transparent 22%),
        var(--k-ink-050);
    padding: clamp(1.5rem, 4vw, 3rem);
}

.pillars-flow__headline {
    display: flex;
    justify-content: space-between;
    gap: 2rem;
    align-items: end;
    margin-bottom: 2rem;
}

.pillars-flow__headline h3 {
    margin: 0;
    font-size: clamp(1.8rem, 4vw, 3.2rem);
    line-height: 1.05;
    letter-spacing: -.04em;
    max-width: 760px;
}

.pillars-flow__headline p {
    margin: 0;
    color: var(--k-text-secondary);
    max-width: 520px;
    line-height: 1.6;
}

.pillars-flow__track {
    display: grid;
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: .75rem;
    counter-reset: pillar-track;
}

.pillars-flow__step {
    position: relative;
    min-height: 118px;
    padding: 1rem;
    border: 1px solid var(--k-border);
    border-radius: 18px;
    background: rgba(255,255,255,.92);
}

.pillars-flow__step::before {
    counter-increment: pillar-track;
    content: "0" counter(pillar-track);
    display: block;
    color: var(--k-blue-700);
    font-size: .7rem;
    font-weight: var(--k-weight-bold);
    letter-spacing: .12em;
}

.pillars-flow__step strong {
    display: block;
    margin-top: .6rem;
    font-size: .96rem;
}

.pillars-flow__step span {
    display: block;
    margin-top: .4rem;
    color: var(--k-text-secondary);
    font-size: .75rem;
    line-height: 1.45;
}

.pillars-flow__step:not(:last-child)::after {
    content: "→";
    position: absolute;
    right: -.58rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--k-blue-500);
    z-index: 2;
    font-weight: 700;
}

@media (max-width: 1200px) {
    .pillars-grid {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }
}

@media (max-width: 900px) {
    .pillars-intro,
    .pillars-flow__headline {
        grid-template-columns: 1fr;
        display: grid;
        align-items: start;
    }

    .pillars-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .pillars-flow__track {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .pillars-flow__step:not(:last-child)::after {
        display: none;
    }
}

@media (max-width: 620px) {
    .pillars-grid,
    .pillars-flow__track {
        grid-template-columns: 1fr;
    }

    .pillar-card {
        min-height: auto;
    }

    .pillar-card__summary {
        min-height: auto;
    }
}