:root {
    --page-bg: #f6f8fb;
    --surface: #ffffff;
    --surface-border: #d7dfe9;
    --text-main: #1a1f2b;
    --text-muted: #4f6177;
    --link: #1759d2;
    --link-hover: #0f3f96;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: "Inter", sans-serif;
    color: var(--text-main);
    background: linear-gradient(180deg, #f8faff 0%, #eef3fb 100%);
    line-height: 1.6;
}

a {
    color: var(--link);
}

.site-header {
    max-width: 1240px;
    margin: 0 auto;
    padding: 2.5rem 1.5rem 1.25rem;
    border-bottom: 1px solid var(--surface-border);
    display: flex;
    justify-content: space-between;
    gap: 2rem;
}

.site-kicker {
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    font-size: 0.75rem;
    font-weight: 600;
}

.site-header h1 {
    margin-top: 0.4rem;
    font-family: "Libre Baskerville", serif;
    font-size: clamp(1.5rem, 3vw, 2.2rem);
    line-height: 1.25;
}

.site-intro {
    margin-top: 0.6rem;
    color: var(--text-muted);
    max-width: 780px;
}

.author-link {
    align-self: flex-start;
    text-decoration: none;
    border: 1px solid var(--surface-border);
    background: var(--surface);
    border-radius: 999px;
    padding: 0.45rem 0.9rem;
    font-weight: 600;
    white-space: nowrap;
}

.author-link:hover {
    color: var(--link-hover);
    border-color: #b6c5db;
}

.storage-hero {
    max-width: 1240px;
    margin: 0.9rem auto 0;
    padding: 2.3rem 1.5rem 2rem;
    text-align: center;
}

.storage-eyebrow {
    text-transform: uppercase;
    letter-spacing: 0.06em;
    font-weight: 800;
    font-size: clamp(1.4rem, 2.7vw, 2.6rem);
    line-height: 1.1;
}

.storage-hero h2 {
    margin-top: 0.15rem;
    text-transform: uppercase;
    font-weight: 800;
    font-size: clamp(3rem, 10vw, 7.4rem);
    letter-spacing: 0.02em;
    line-height: 0.95;
}

.storage-subtitle {
    margin-top: 0.95rem;
    color: #757d8c;
    font-size: clamp(1rem, 2vw, 1.08rem);
}

.storage-pillars {
    max-width: 1120px;
    margin: 2.3rem auto 0;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
}

.pillar {
    text-decoration: none;
    padding: 0.25rem 1rem 0.45rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.05rem;
}

.pillar + .pillar {
    border-left: 1px solid #d6dde8;
}

.pillar strong {
    font-size: clamp(1.5rem, 2.6vw, 2.35rem);
    line-height: 1.1;
}

.pillar span {
    color: #67809b;
    font-size: clamp(0.95rem, 1.9vw, 1.12rem);
}

.pillar-everpure {
    color: #f97316;
}

.pillar-emc,
.pillar-cisco {
    color: #0f7eb8;
}

.pillar:hover strong {
    text-decoration: underline;
}

.layout {
    max-width: 1240px;
    margin: 0 auto;
    padding: 1.75rem 1.5rem 3rem;
    display: grid;
    grid-template-columns: 280px minmax(0, 1fr);
    gap: 1.5rem;
}

.sidebar {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.panel {
    background: var(--surface);
    border: 1px solid var(--surface-border);
    border-radius: 12px;
    padding: 1rem;
}

.panel h2 {
    font-family: "Libre Baskerville", serif;
    font-size: 1rem;
    margin-bottom: 0.65rem;
}

.panel ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.45rem;
}

.panel a {
    text-decoration: none;
    font-size: 0.95rem;
}

.panel a:hover {
    color: var(--link-hover);
}

.brand-filter-list {
    display: flex;
    flex-wrap: wrap;
    gap: 0.45rem;
}

.brand-filter-btn {
    border: 1px solid #c8d5ea;
    background: #f4f8ff;
    color: #1d3f78;
    border-radius: 999px;
    padding: 0.28rem 0.65rem;
    font-size: 0.83rem;
    font-weight: 600;
    cursor: pointer;
    font-family: "Inter", sans-serif;
}

.brand-filter-btn:hover {
    border-color: #9fb4d6;
    background: #eaf2ff;
}

.brand-filter-btn.active {
    background: #1759d2;
    border-color: #1759d2;
    color: #ffffff;
}

.brand-filter-result {
    margin-top: 0.6rem;
    color: var(--text-muted);
    font-size: 0.86rem;
}

.brand-coming-soon {
    margin-top: 0.45rem;
    color: #5b6d85;
    font-size: 0.82rem;
    line-height: 1.4;
}

.brand-coming-soon strong {
    color: #334155;
}

.ad-panel p {
    color: var(--text-muted);
    font-size: 0.95rem;
    margin-bottom: 0.5rem;
}

.request-panel {
    background: linear-gradient(180deg, #ffffff 0%, #f4f8ff 100%);
    border: 1px solid #c9d7ee;
}

.request-panel p {
    color: var(--text-muted);
    font-size: 0.92rem;
    line-height: 1.45;
    margin-bottom: 0.7rem;
}

.request-panel a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 600;
    color: #ffffff;
    background: #1759d2;
    border: 1px solid #1759d2;
    border-radius: 8px;
    padding: 0.5rem 0.75rem;
}

.request-panel a:hover {
    background: #0f3f96;
    border-color: #0f3f96;
}

.content {
    display: flex;
    flex-direction: column;
    gap: 1.15rem;
}

.group {
    background: var(--surface);
    border: 1px solid var(--surface-border);
    border-radius: 12px;
    padding: 1.1rem;
}

.group h2 {
    font-family: "Libre Baskerville", serif;
    font-size: 1.15rem;
    margin-bottom: 0.9rem;
}

.tool-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.85rem;
}

.tool-card {
    text-decoration: none;
    background: #fbfdff;
    border: 1px solid #dce5f2;
    border-radius: 10px;
    padding: 0.95rem;
    display: flex;
    flex-direction: column;
    min-height: 150px;
}

.tool-card h3 {
    font-size: 1.03rem;
    line-height: 1.35;
}

.tool-card p {
    color: var(--text-muted);
    margin-top: 0.35rem;
    font-size: 0.92rem;
    flex-grow: 1;
}

.tool-card span {
    margin-top: 0.7rem;
    font-size: 0.9rem;
    font-weight: 600;
}

.tool-card:hover {
    border-color: #9fb4d6;
    background: #f4f8ff;
}

@media (max-width: 980px) {
    .storage-pillars {
        grid-template-columns: 1fr;
        gap: 0.9rem;
        max-width: 360px;
    }

    .pillar + .pillar {
        border-left: 0;
        border-top: 1px solid #d6dde8;
        padding-top: 0.95rem;
    }

    .layout {
        grid-template-columns: 1fr;
    }

    .sidebar {
        order: 2;
    }

    .tool-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 680px) {
    .site-header {
        flex-direction: column;
    }

    .author-link {
        align-self: flex-start;
    }
}