:root {
    --sf-ink: #1a1a1a;
    --sf-ink-soft: #3a3a3a;
    --sf-ink-muted: #6b6863;
    --sf-ink-faint: #9a9892;
    --sf-ink-fade: #b8b6af;
    --sf-line: #e5e2da;
    --sf-line-soft: #d4d0c5;
    --sf-bg: #faf9f6;
    --sf-surface: #f1efe8;
    --sf-surface-deep: #ebe8df;
}

.sf-wrap {
    background: var(--sf-bg);
    color: var(--sf-ink);
    font-family: -apple-system, BlinkMacSystemFont, 'Helvetica Neue', 'Inter', Arial, sans-serif;
    -webkit-font-smoothing: antialiased;
    line-height: 1.5;
}

.sf-wrap *,
.sf-wrap *::before,
.sf-wrap *::after {
    box-sizing: border-box;
}

/* Section A — Columns */
.sf-cols-section {
    position: relative;
    background: linear-gradient(180deg, var(--sf-bg) 0%, #f7f5ef 100%);
    overflow: hidden;
}

.sf-cols-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    width: 1px;
    height: 48px;
    background: linear-gradient(180deg, transparent 0%, var(--sf-line-soft) 100%);
    transform: translateX(-50%);
}

.sf-inner {
    max-width: 1240px;
    margin: 0 auto;
    padding: 5rem 2rem 0;
    position: relative;
    z-index: 1;
}

.sf-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 3rem;
    padding-bottom: 4rem;
}

.sf-col-label {
    font-size: 11px;
    letter-spacing: 1.6px;
    color: var(--sf-ink-muted);
    margin: 0 0 1.25rem;
    text-transform: uppercase;
    font-weight: 500;
}

.sf-links {
    list-style: none;
    margin: 0;
    padding: 0;
}

.sf-links li {
    margin: 0 0 0.75rem;
}

.sf-links a {
    color: var(--sf-ink-soft);
    text-decoration: none;
    font-size: 14px;
    letter-spacing: 0.2px;
    line-height: 1.5;
    transition: color 0.15s;
}

.sf-links a:hover {
    color: var(--sf-ink);
}

/* Subscribe */
.sf-sub-input-wrap {
    position: relative;
    margin: 0 0 1.5rem;
}

.sf-sub-input,
.sf-wrap input.sf-sub-input {
    width: 100%;
    padding: 13px 86px 13px 14px;
    background: #ffffff;
    border: 0.5px solid var(--sf-line);
    border-radius: 8px;
    color: var(--sf-ink);
    font-size: 13px;
    font-family: inherit;
    outline: none;
    transition: border-color 0.15s;
}

.sf-sub-input:focus {
    border-color: var(--sf-ink-muted);
}

.sf-sub-input::placeholder {
    color: var(--sf-ink-faint);
}

.sf-sub-btn {
    position: absolute;
    right: 5px;
    top: 5px;
    bottom: 5px;
    padding: 0 16px;
    background: var(--sf-ink);
    color: var(--sf-bg);
    border: none;
    border-radius: 6px;
    font-size: 11px;
    letter-spacing: 1.2px;
    font-weight: 500;
    cursor: pointer;
    text-transform: uppercase;
    transition: opacity 0.15s;
    font-family: inherit;
}

.sf-sub-btn:hover {
    opacity: 0.85;
}

/* Social */
.sf-social {
    display: flex;
    flex-direction: column;
    gap: 0.7rem;
    margin: 0;
    padding: 0;
    list-style: none;
}

.sf-social li {
    margin: 0;
}

.sf-social a {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--sf-ink-soft);
    text-decoration: none;
    font-size: 13px;
    line-height: 1.4;
    transition: color 0.15s;
}

.sf-social a:hover {
    color: var(--sf-ink);
}

.sf-social a svg {
    width: 16px;
    height: 16px;
    flex-shrink: 0;
    opacity: 0.85;
}

.sf-social a span {
    margin: 0;
}

/* Section B — Wordmark band */
.sf-wordmark-section {
    position: relative;
    background: radial-gradient(ellipse at center top, var(--sf-surface) 0%, var(--sf-surface-deep) 100%);
    border-top: 0.5px solid var(--sf-line);
    border-bottom: 0.5px solid var(--sf-line);
    overflow: hidden;
    padding: 5rem 1rem 4rem;
    text-align: center;
}

.sf-wordmark-section::before {
    content: '\2726';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -52%);
    font-size: 60vw;
    color: var(--sf-ink);
    opacity: 0.04;
    line-height: 1;
    font-weight: 400;
    pointer-events: none;
    z-index: 0;
}

.sf-wordmark-inner {
    position: relative;
    z-index: 1;
    max-width: 1240px;
    margin: 0 auto;
}

.sf-mark-row {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 14px;
    margin: 0 0 1.5rem;
}

.sf-mark-line {
    flex: 0 0 56px;
    height: 0.5px;
    background: var(--sf-line-soft);
}

.sf-mark {
    display: inline-block;
    color: var(--sf-ink-faint);
    font-size: 14px;
    letter-spacing: 3px;
}

.sf-wordmark-frame {
    display: block;
    width: 100%;
}

.sf-wordmark-image {
    display: block;
    width: 100%;
    max-width: 1240px;
    height: auto;
    margin: 0 auto;
    object-fit: contain;
}

.sf-tag {
    font-size: 11px;
    letter-spacing: 2.4px;
    color: var(--sf-ink-muted);
    text-transform: uppercase;
    margin: 1.75rem 0 0;
    font-weight: 500;
}

/* Section C — Legal strip */
.sf-legal-section {
    background: var(--sf-bg);
    padding: 1.75rem 0 2.25rem;
}

.sf-legal {
    max-width: 1240px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.sf-legal-text {
    font-size: 11px;
    letter-spacing: 0.8px;
    color: var(--sf-ink-faint);
    margin: 0;
}

.sf-legal-text p {
    margin: 0;
}

.sf-legal-links {
    display: flex;
    gap: 1.5rem;
    list-style: none;
    margin: 0;
    padding: 0;
}

.sf-legal-links a {
    font-size: 11px;
    letter-spacing: 0.8px;
    color: var(--sf-ink-faint);
    text-decoration: none;
    transition: color 0.15s;
}

.sf-legal-links a:hover {
    color: var(--sf-ink-muted);
}

@media (max-width: 900px) {
    .sf-inner {
        padding: 3.5rem 1.5rem 0;
    }

    .sf-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 2.5rem 2rem;
        padding-bottom: 3rem;
    }
}

@media (max-width: 540px) {
    .sf-inner {
        padding: 2.5rem 1.25rem 0;
    }

    .sf-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
        padding-bottom: 2.5rem;
    }

    .sf-wordmark-section {
        padding: 3rem 1rem;
    }

    .sf-legal {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.75rem;
        padding: 0 1.5rem;
    }
}