/* ─── PAGE VIEWS ─── */
.page {
    display: none;
    flex-direction: column;
    min-height: 100vh;
}

.page.active {
    display: flex;
}

/* ─── DESKTOP HEADER ─── */
.site-header {
    height: var(--header-h);
    background: var(--paper);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 100;
    display: flex;
    align-items: center;
    padding: 0 40px;
    gap: 24px;
}

.header-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-shrink: 0;
    cursor: pointer;
}

.logo-mark {
    width: 36px;
    height: 36px;
    background: var(--ink);
    border-radius: 9px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--paper);
    font-family: var(--font-display);
    font-size: 18px;
    letter-spacing: -1px;
}

.logo-text {
    font-family: var(--font-display);
    font-size: 20px;
    letter-spacing: 0.8px;
    text-transform: uppercase;
}

.header-nav {
    margin-left: auto;
    display: flex;
    align-items: center;
    gap: 8px;
}

/* ─── MOBILE HEADER ─── */
.mobile-header {
    display: none;
    height: 60px;
    background: var(--paper);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 100;
    align-items: center;
    padding: 0 16px;
    gap: 12px;
}

.mobile-filter-strip {
    display: none;
    padding: 10px 16px;
    gap: 8px;
    overflow-x: auto;
    scrollbar-width: none;
    background: var(--paper);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 60px;
    z-index: 99;
}

.mobile-filter-strip::-webkit-scrollbar {
    display: none;
}

/* ─── HOME MAIN ─── */
.home-main {
    flex: 1;
    padding: 32px 40px;
    max-width: 1400px;
    margin: 0 auto;
    width: 100%;
}

.controls-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 28px;
    flex-wrap: wrap;
}

.filter-pills {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.product-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

/* ─── DETAIL MAIN ─── */
.detail-main {
    flex: 1;
    max-width: 1400px;
    margin: 0 auto;
    width: 100%;
    padding: 32px 40px;
}

.detail-hero {
    display: grid;
    grid-template-columns: 7fr 3fr;
    gap: 40px;
    margin-bottom: 56px;
    align-items: start;
}

.detail-lower {
    display: grid;
    grid-template-columns: 7fr 3fr;
    gap: 40px;
    margin-bottom: 48px;
    align-items: start;
}

/* ─── DESKTOP FOOTER ─── */
.site-footer {
    background: var(--ink);
    color: var(--paper);
    margin-top: auto;
}

.footer-inner {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 48px;
    padding: 52px 40px 40px;
    max-width: 1400px;
    margin: 0 auto;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 14px;
}

.footer-logo .logo-mark {
    background: var(--paper);
    color: var(--ink);
}

.footer-logo .logo-text {
    color: var(--paper);
}

.footer-desc {
    font-size: 14px;
    color: rgba(245, 243, 238, 0.55);
    line-height: 1.7;
    margin-bottom: 16px;
}

.footer-contact {
    font-size: 13.5px;
    color: rgba(245, 243, 238, 0.55);
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.footer-col h4 {
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: rgba(245, 243, 238, 0.4);
    margin-bottom: 16px;
}

.footer-col a {
    display: block;
    font-size: 14px;
    color: rgba(245, 243, 238, 0.6);
    margin-bottom: 10px;
    transition: color 0.2s;
}

.footer-col a:hover {
    color: var(--paper);
}

.footer-bottom {
    border-top: 1px solid rgba(245, 243, 238, 0.1);
    padding: 18px 40px;
    max-width: 1400px;
    margin: 0 auto;
    font-size: 12.5px;
    color: rgba(245, 243, 238, 0.3);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

/* ─── MOBILE FOOTER ─── */
.mobile-footer {
    display: none;
    background: var(--ink);
    padding: 32px 20px 100px;
    color: var(--paper);
}

.mobile-footer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 10px;
}

.mobile-footer-logo .logo-mark {
    background: var(--paper);
    color: var(--ink);
}

.mobile-footer-logo .logo-text {
    color: var(--paper);
}

.mobile-footer-desc {
    font-size: 13px;
    color: rgba(245, 243, 238, 0.5);
    margin-bottom: 20px;
    line-height: 1.6;
}

.mobile-footer-links {
    display: flex;
    flex-wrap: wrap;
    gap: 12px 20px;
    margin-bottom: 20px;
}

.mobile-footer-links a {
    font-size: 13px;
    color: rgba(245, 243, 238, 0.55);
}

.mobile-footer-copy {
    font-size: 12px;
    color: rgba(245, 243, 238, 0.3);
}