/* ══════════════════════════════════════
   SHARED NAV & FOOTER — SOURCE OF TRUTH
   Matches index.html exactly
   ══════════════════════════════════════ */

/* ── NAV ── */
.site-nav {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 100;
    padding: 1.5rem max(3rem, calc((100vw - 1600px) / 2));
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: background 0.4s, padding 0.4s, box-shadow 0.4s;
}
.site-nav.scrolled {
    background: rgba(250,246,241,0.97);
    padding: 1rem max(3rem, calc((100vw - 1600px) / 2));
    box-shadow: 0 1px 20px rgba(0,0,0,0.06);
    backdrop-filter: blur(10px);
}
/* For subpages: fully opaque cream — no hero video behind so no need for transparency */
.site-nav.has-bg {
    background: var(--cream);
    box-shadow: 0 1px 20px rgba(0,0,0,0.06);
}

.site-nav .logo {
    font-family: var(--serif);
    font-size: 1.6rem;
    font-weight: 300;
    letter-spacing: 0.15em;
    color: var(--charcoal);
    text-decoration: none;
    text-transform: uppercase;
    display: inline-flex;
    align-items: center;
    line-height: 0;
    position: relative;
    z-index: 100;
}
.site-nav .logo span { color: var(--gold); }
.site-nav .logo img {
    height: 62px;
    width: auto;
    display: block;
    transition: opacity 0.4s ease;
}
/* Colour version: defines layout, hidden by default (over hero video) */
.site-nav .logo .logo-color {
    opacity: 0;
}
/* White version: stacked on top, visible by default */
.site-nav .logo .logo-white {
    position: absolute;
    top: 0;
    left: 0;
    opacity: 1;
}
/* Once nav has a background (scrolled on home, or any subpage), show colour version */
.site-nav.scrolled .logo .logo-color,
.site-nav.has-bg .logo .logo-color { opacity: 1; }
.site-nav.scrolled .logo .logo-white,
.site-nav.has-bg .logo .logo-white { opacity: 0; }
/* When the mobile menu is open the bar turns cream, so show the colour logo */
.site-nav.menu-open .logo .logo-color { opacity: 1 !important; }
.site-nav.menu-open .logo .logo-white { opacity: 0 !important; }

.site-nav .nav-links {
    display: flex;
    gap: 2.5rem;
    align-items: center;
}
.site-nav .nav-links a {
    font-size: 0.75rem;
    font-weight: 500;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--text);
    text-decoration: none;
    position: relative;
    transition: color 0.3s;
}
.site-nav .nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px; left: 0;
    width: 0; height: 1px;
    background: var(--gold);
    transition: width 0.3s;
}
.site-nav .nav-links a:hover { color: var(--gold); }
.site-nav .nav-links a:hover::after { width: 100%; }
.site-nav .nav-links a.active { color: var(--gold); }
.site-nav .nav-links a.active::after { width: 100%; }

/* ── CALL TO BOOK OUTLINE BUTTON ── */
.site-nav .nav-cta-outline {
    display: inline-block;
    border: none;
    box-shadow: inset 0 0 0 1px var(--charcoal);
    color: var(--charcoal) !important;
    padding: 0.7rem 1.8rem !important;
    font-size: 0.7rem !important;
    font-family: var(--sans);
    font-weight: 500;
    letter-spacing: 0.15em !important;
    text-transform: uppercase;
    text-decoration: none;
    cursor: pointer;
    margin-left: -1.25rem;
    transition: background 0.3s, color 0.3s, box-shadow 0.3s !important;
}
.site-nav .nav-cta-outline:hover {
    background: var(--charcoal);
    color: var(--cream) !important;
    box-shadow: inset 0 0 0 1px var(--charcoal);
}
.site-nav .nav-cta-outline::after { display: none !important; }

.site-nav .nav-cta {
    background: var(--charcoal) !important;
    color: var(--cream) !important;
    padding: 0.7rem 1.8rem !important;
    font-size: 0.7rem !important;
    letter-spacing: 0.15em !important;
    border: none;
    cursor: pointer;
    transition: background 0.3s !important;
}
.site-nav .nav-cta:hover { background: var(--taupe-dark) !important; }
.site-nav .nav-cta::after { display: none !important; }

/* ── WHATSAPP CIRCLE BUTTON (nav) ── */
.site-nav .nav-wa {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 38px;
    border-radius: 50%;
    background: var(--gold) !important;
    color: var(--cream) !important;
    text-decoration: none;
    margin-left: -1.75rem;
    flex-shrink: 0;
    transition: background 0.3s, transform 0.2s;
}
.site-nav .nav-wa:hover { background: var(--gold-light) !important; transform: translateY(-2px); }
.site-nav .nav-wa::after { display: none !important; }
.site-nav .nav-wa svg { width: 20px; height: 20px; }

.site-nav .hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    background: none;
    border: none;
    padding: 5px;
    position: relative;
    z-index: 100;
}
.site-nav .hamburger span {
    width: 24px; height: 1.5px;
    background: var(--charcoal);
    transition: all 0.3s;
}

/* ── FIXED NAV OFFSET FOR SUBPAGES ── */
body.has-fixed-nav {
    padding-top: 95px;
}

/* ── DYNAMIC OFFER BANNER ── */
.promo-banner {
    display: block;
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 98;
    background: var(--gold);
    color: var(--charcoal);
    text-decoration: none;
    text-align: center;
    padding: 0.6rem 1.2rem;
    font-family: var(--sans);
    font-size: 0.78rem;
    letter-spacing: 0.04em;
    line-height: 1.4;
    transition: background 0.3s;
}
.promo-banner strong { color: var(--warm-white); font-weight: 700; }
.promo-banner:hover { background: var(--gold-light); }
/* When the banner is present, push the fixed nav (and subpage content) down by its height */
.has-promo-banner .site-nav { top: var(--promo-h, 0px); }
.has-promo-banner.has-fixed-nav { padding-top: calc(95px + var(--promo-h, 0px)); }
/* Compact banner on mobile so the copy doesn't over-run awkwardly */
@media (max-width: 600px) {
    .promo-banner { font-size: 0.68rem; padding: 0.5rem 1rem; letter-spacing: 0.02em; line-height: 1.35; }
}

/* ── WHATSAPP CHAT BUTTON ── */
.wa-fab {
    position: fixed;
    right: 1.25rem;
    bottom: 1.25rem;
    z-index: 97;
    width: 56px;
    height: 56px;
    border-radius: 50%;
    /* WhatsApp brand green so the floating button is instantly recognisable and stops
       blending into the gold palette. The on-brand gold nav button stays gold. */
    background: #25D366;
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 6px 18px rgba(0,0,0,0.18);
    transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}
.wa-fab:hover { transform: scale(1.06); background: #1EBE5A; box-shadow: 0 8px 22px rgba(0,0,0,0.24); }
.wa-fab svg { display: block; }
@media (max-width: 600px) {
    .wa-fab { width: 52px; height: 52px; right: 1rem; bottom: 1rem; }
}

/* ── FOOTER ── */
/* Target bare <footer> and .site-footer so styling applies instantly,
   avoiding a flash of blue default links before shared-nav.js swaps
   the inline footer for the styled version. */
footer,
.site-footer {
    background: var(--charcoal);
    color: rgba(250,246,241,0.5);
    padding: 3rem;
    text-align: center;
    font-size: 0.75rem;
    letter-spacing: 0.05em;
}
footer .logo,
.site-footer .logo {
    font-family: var(--serif);
    font-size: 1.2rem;
    font-weight: 300;
    letter-spacing: 0.15em;
    color: var(--cream);
    text-decoration: none;
    text-transform: uppercase;
    display: inline-block;
    margin-bottom: 1rem;
    line-height: 0;
}
footer .logo span,
.site-footer .logo span { color: var(--gold); }
footer .logo img,
.site-footer .logo img {
    height: 78px;
    width: auto;
    display: block;
    margin: 0 auto;
}
footer a,
.site-footer a { color: rgba(250,246,241,0.5); text-decoration: none; }
footer a:hover,
.site-footer a:hover { color: var(--gold); }
.site-footer .footer-links {
    display: flex;
    gap: 2rem;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 1rem;
}
/* Concern links framed as a labelled section (not a loose wall of links) */
.site-footer .footer-concerns {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.85rem;
    max-width: 880px;
    margin: 0.25rem auto 1.4rem;
    padding-top: 1.3rem;
    border-top: 1px solid rgba(250,246,241,0.08);
}
.site-footer .footer-concerns-label {
    font-size: 0.6rem;
    letter-spacing: 0.22em;
    text-transform: uppercase;
    color: rgba(250,246,241,0.3);
}
.site-footer .footer-concerns-links {
    display: flex;
    gap: 1.4rem;
    justify-content: center;
    flex-wrap: wrap;
}
.site-footer .footer-concerns a {
    font-size: 0.7rem;
    color: rgba(250,246,241,0.4);
    letter-spacing: 0.05em;
}
.site-footer .footer-concerns a:hover { color: var(--gold); }
.site-footer .footer-social {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    gap: 0.9rem;
    margin-bottom: 1rem;
}
.site-footer .footer-social-sep {
    color: rgba(250,246,241,0.3);
    user-select: none;
}
.site-footer .footer-social a {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: rgba(250,246,241,0.6);
    text-decoration: none;
    font-size: 0.8rem;
    letter-spacing: 0.05em;
    transition: color 0.3s;
}
.site-footer .footer-social a:hover { color: var(--gold); }
.site-footer .footer-social svg { flex-shrink: 0; }
.site-footer .footer-disclaimer,
footer .footer-disclaimer {
    margin-top: 1.5rem;
    font-style: italic;
    max-width: 44rem;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.5;
}
.site-footer .footer-partner,
footer .footer-partner {
    display: flex;
    flex-wrap: wrap;               /* stacks neatly on narrow screens */
    align-items: center;
    justify-content: center;
    gap: 0.9rem 2.5rem;
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid rgba(250,246,241,0.1);
}
/* Each brand is a label + logo pair, linking to its page on this site */
.site-footer .footer-partner-item,
footer .footer-partner-item {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    text-decoration: none;
}
.site-footer .footer-partner-label,
footer .footer-partner-label {
    font-size: 0.65rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: rgba(250,246,241,0.35);
}
.site-footer .footer-dermalux-logo,
footer .footer-dermalux-logo {
    height: 14px;
    width: auto;
    opacity: 0.45;
    display: block;
    transition: opacity 0.3s;
}
/* Circadia mark is stacked (near-square), so it needs more height than the
   Dermalux wordmark to read at the same optical size */
.site-footer .footer-circadia-logo,
footer .footer-circadia-logo {
    height: 30px;
    width: auto;
    opacity: 0.45;
    display: block;
    transition: opacity 0.3s;
}
.footer-partner-item:hover .footer-dermalux-logo,
.footer-partner-item:hover .footer-circadia-logo { opacity: 0.75; }
/* On mobile, stack each label centred above its logo */
@media (max-width: 600px) {
    .site-footer .footer-partner-item,
    footer .footer-partner-item {
        flex-direction: column;
        text-align: center;
        gap: 0.5rem;
    }
    .site-footer .footer-partner,
    footer .footer-partner { gap: 1.4rem; }
}

/* ── MOBILE MENU FADE ── */
@keyframes menuFadeIn {
    from { opacity: 0; transform: translateY(-8px); }
    to   { opacity: 1; transform: translateY(0); }
}

/* ── RESPONSIVE ── */
@media (max-width: 1300px) {
    .site-nav { padding: 1.2rem 2rem; }
    .site-nav .logo img { height: 50px; }
    .site-nav .nav-links { display: none; }
    .site-nav .hamburger { display: flex; }

    /* Solid background when menu is open so the × is visible */
    .site-nav.menu-open {
        background: var(--cream) !important;
        box-shadow: none !important;
        /* backdrop-filter makes the nav a containing block for its fixed child,
           which would trap the full-screen menu overlay inside the nav bar on iOS.
           Drop it while the menu is open so the overlay covers the whole viewport. */
        backdrop-filter: none !important;
        -webkit-backdrop-filter: none !important;
    }

    /* Hamburger spans animate into × */
    .site-nav .hamburger span {
        transition: transform 0.3s ease, opacity 0.3s ease;
    }
    .site-nav .hamburger.open span:nth-child(1) {
        transform: translateY(6.5px) rotate(45deg);
    }
    .site-nav .hamburger.open span:nth-child(2) {
        opacity: 0;
        transform: scaleX(0);
    }
    .site-nav .hamburger.open span:nth-child(3) {
        transform: translateY(-6.5px) rotate(-45deg);
    }

    /* Full-screen overlay (solid background from frame 1 - no opacity fade,
       which on iOS Safari could leave the fixed overlay see-through) */
    .site-nav .nav-links.open {
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        position: fixed;
        inset: 0;
        z-index: 99;
        background: var(--cream);
        gap: 2rem;
        overflow-y: auto;
        -webkit-overflow-scrolling: touch;
    }

    /* Nav links in full-screen menu */
    .site-nav .nav-links.open a {
        font-size: 0.8rem;
        letter-spacing: 0.2em;
    }

    /* CTA buttons — full width, properly spaced */
    .site-nav .nav-links.open .nav-cta,
    .site-nav .nav-links.open .nav-cta-outline {
        width: 220px;
        text-align: center;
        display: block !important;
        margin-left: 0 !important;
        box-shadow: none !important;
    }
    .site-nav .nav-links.open .nav-cta-outline {
        box-shadow: inset 0 0 0 1px var(--charcoal) !important;
        padding: 0.7rem 1.8rem !important;
    }
    /* WhatsApp circle: centre it (drop the desktop pull-in) and enlarge for touch */
    .site-nav .nav-links.open .nav-wa {
        margin-left: 0 !important;
        width: 48px;
        height: 48px;
    }
    .site-nav .nav-links.open .nav-wa svg { width: 26px; height: 26px; }

    footer .logo img,
    .site-footer .logo img { height: 62px; }
}