/* ═══════════════════════════════════════════════════════════════════════════
   Navbar
   ═══════════════════════════════════════════════════════════════════════════

   States (managed by Alpine.js)
   ─────────────────────────────
   (no class)          fully transparent — hero pages before scroll
   .navbar--opaque     solid bg          non-hero pages · OR scrolled hero
   .navbar--scrolled   frosted glass     hero page · scrolled (overrides --opaque)

   Critical rendering notes
   ────────────────────────
   • NO border-bottom — replaced by box-shadow: inset 0 -1px 0 0.
     border-bottom + backdrop-filter = WebKit 1-px compositing seam.

   • backdrop-filter is NOT in the transition list — not animatable per spec.
     It is always-on at the base level (blur(12px)); --scrolled deepens it.
     On --opaque the solid background makes it visually inert (no cost).

   • background-color transitions from --nb-glass (warm-cream / charcoal
     low-alpha) to --bg-primary (solid), staying within the brand colour space.
*/

/* ═══════════════════════════════════════════════════════════════════════════
   Theme tokens
   ═══════════════════════════════════════════════════════════════════════════ */

/* ─── Light (default) ────────────────────────────────────────────────────── */
:root {
    /* Alpha-0 of --bg-primary — fully transparent over hero before scroll.
       Keeps background-color transition inside the warm-cream colour space. */
    --nb-glass:         rgba(248, 246, 242, 0);

    /* ── Transparent-over-hero state ── */
    --nh-link-on:       rgba(22, 20, 17, 0.92);
    --nh-action:        rgba(22, 20, 17, 0.60);
    --nh-icon:          rgba(22, 20, 17, 0.68);
    --nh-icon-bg-h:     rgba(22, 20, 17, 0.08);

    /* CTA ghost — over semi-transparent hero glass */
    --nh-cta:           rgba(22, 20, 17, 0.72);
    --nh-cta-border:    rgba(22, 20, 17, 0.28);
    --nh-cta-bg-h:      rgba(22, 20, 17, 0.07);

    /* ── Scrolled / deeper glass (hero scrolled) ── */
    --ns-bg:            rgba(248, 246, 240, 0.88);
    --ns-shadow:        rgba(22, 20, 17, 0.09);
    --ns-blur:          blur(20px) saturate(140%);
}

/* ─── Dark (explicit toggle) ─────────────────────────────────────────────── */
[data-theme="dark"] {
    --nb-glass:         rgba(26, 25, 23, 0);

    --nh-link-on:       rgba(255, 255, 255, 0.95);
    --nh-action:        rgba(255, 255, 255, 0.60);
    --nh-icon:          rgba(255, 255, 255, 0.55);
    --nh-icon-bg-h:     rgba(255, 255, 255, 0.08);

    --nh-cta:           rgba(255, 255, 255, 0.75);
    --nh-cta-border:    rgba(255, 255, 255, 0.28);
    --nh-cta-bg-h:      rgba(255, 255, 255, 0.07);

    --ns-bg:            rgba(20, 18, 16, 0.85);
    --ns-shadow:        rgba(255, 255, 255, 0.07);
    --ns-blur:          blur(20px) saturate(160%);
}

/* ─── Dark (system preference) ───────────────────────────────────────────── */
@media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) {
        --nb-glass:         rgba(26, 25, 23, 0);

        --nh-link-on:       rgba(255, 255, 255, 0.95);
        --nh-action:        rgba(255, 255, 255, 0.60);
        --nh-icon:          rgba(255, 255, 255, 0.55);
        --nh-icon-bg-h:     rgba(255, 255, 255, 0.08);

        --nh-cta:           rgba(255, 255, 255, 0.75);
        --nh-cta-border:    rgba(255, 255, 255, 0.28);
        --nh-cta-bg-h:      rgba(255, 255, 255, 0.07);

        --ns-bg:            rgba(20, 18, 16, 0.85);
        --ns-shadow:        rgba(255, 255, 255, 0.07);
        --ns-blur:          blur(20px) saturate(160%);
    }
}

/* ═══════════════════════════════════════════════════════════════════════════
   Shell
   ═══════════════════════════════════════════════════════════════════════════ */

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: var(--z-sticky);

    /* Fully transparent over hero — alpha-0 of brand colour keeps
       background-color transition within the warm-cream/charcoal space. */
    background-color: var(--nb-glass);

    box-shadow: inset 0 -1px 0 0 transparent;

    transition:
        background-color 380ms ease,
        box-shadow       280ms ease;
}

/* Solid surface — non-hero pages and scrolled-past-hero */
.navbar--opaque {
    background-color: var(--bg-primary);
    box-shadow: inset 0 -1px 0 0 var(--border-light);
}

/* Deep glass — hero page after scroll. Applied alongside --opaque; wins by cascade. */
.navbar--scrolled {
    background-color: var(--ns-bg);
    box-shadow: inset 0 -1px 0 0 var(--ns-shadow);
    backdrop-filter: var(--ns-blur);
    -webkit-backdrop-filter: var(--ns-blur);
}

/* ═══════════════════════════════════════════════════════════════════════════
   Inner row
   ═══════════════════════════════════════════════════════════════════════════ */

.navbar__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-3);
    max-width: var(--width-full);
    margin-inline: auto;
    padding: 22px var(--site-gutter);
    height: var(--navbar-height);
    box-sizing: border-box;
    transition: height 350ms ease, padding 350ms ease;
}

.navbar--opaque  .navbar__inner,
.navbar--scrolled .navbar__inner {
    height: var(--navbar-height-scrolled);
    padding-top: 14px;
    padding-bottom: 14px;
}

/* ═══════════════════════════════════════════════════════════════════════════
   Brand (image logo)
   ═══════════════════════════════════════════════════════════════════════════

   Two SVG files stacked in a CSS-grid cell; opacity cross-fades on theme
   change. No JS, no layout duplication, no CLS.
   ═══════════════════════════════════════════════════════════════════════════ */

.navbar__brand {
    display: flex;
    align-items: center;
    margin-right: auto;
    flex-shrink: 0;
    text-decoration: none;
    transition: opacity 200ms ease;
}

.navbar__brand:hover { opacity: 0.70; }

.navbar-logo {
    display: grid;
    align-items: center;
}

.navbar-logo__img {
    grid-area: 1 / 1;
    display: block;
    height: 40px;
    width: auto;
    transition: opacity 350ms ease;
    user-select: none;
    -webkit-user-drag: none;
    pointer-events: none;
}

.navbar-logo--sm .navbar-logo__img { height: 27px; }

@media (max-width: 479px) {
    .navbar-logo--lg .navbar-logo__img { height: 28px; }
}

/* Light: black logo visible; dark logo hidden */
.navbar-logo__img--light { opacity: 1; }
.navbar-logo__img--dark  { opacity: 0; }

[data-theme="dark"] .navbar-logo__img--light { opacity: 0; }
[data-theme="dark"] .navbar-logo__img--dark  { opacity: 1; }

@media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) .navbar-logo__img--light { opacity: 0; }
    :root:not([data-theme="light"]) .navbar-logo__img--dark  { opacity: 1; }
}

/* ═══════════════════════════════════════════════════════════════════════════
   Actions — right-side cluster (theme · saved · search · user/sign-in · CTA)
   ═══════════════════════════════════════════════════════════════════════════ */

.navbar__actions {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

/* ─── User block (authenticated) ──────────────────────────────────────────── */

.navbar__user {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    text-decoration: none;
    transition: opacity 200ms ease;
}

.navbar__user:hover { opacity: 0.78; }

/* Circular avatar — initials or profile image, via components/nav-avatar.html. */
.navbar-avatar {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    width: 34px;
    height: 34px;
    border-radius: var(--radius-full);
    background-color: var(--accent-gold);
    color: var(--bg-primary);
    font-family: var(--font-body);
    font-size: var(--text-xs);
    font-weight: 600;
    letter-spacing: 0.04em;
    overflow: hidden;
    user-select: none;
}

.navbar-avatar--lg {
    width: 44px;
    height: 44px;
    font-size: var(--text-sm);
}

.navbar-avatar img {
    width: 100%;
    height: 100%;
    display: block;
    object-fit: cover;
}

/* User's name — hidden on mobile, visible at 768 px+ */
.navbar__username {
    display: none;
    font-size: 12px;
    font-weight: 400;
    letter-spacing: 0.04em;
    color: var(--text-secondary);
    white-space: nowrap;
    transition: color 200ms ease;
}

/* Over transparent hero */
.navbar:not(.navbar--opaque) .navbar__user     { opacity: 1; }
.navbar:not(.navbar--opaque) .navbar__username { color: var(--nh-action); }

/* ─── Sign In link (unauthenticated) ──────────────────────────────────────────
   Mobile: icon-only button, same footprint as the other action icons.
   Desktop (≥768px): text-only, no button background — see Responsive. ─────── */

.navbar__action-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    font-size: 12px;
    font-weight: 400;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--text-secondary);
    border-radius: var(--radius-sm);
    transition: color 200ms ease, background-color 200ms ease;
}

.navbar__action-link:hover {
    color: var(--text-primary);
    background-color: var(--surface-hover);
}

.navbar__action-icon { width: 18px; height: 18px; }
.navbar__action-text { display: none; }

.navbar:not(.navbar--opaque) .navbar__action-link       { color: var(--nh-action); }
.navbar:not(.navbar--opaque) .navbar__action-link:hover {
    color: var(--nh-link-on);
    background-color: var(--nh-icon-bg-h);
}

/* ─── Theme toggle ────────────────────────────────────────────────────────── */

.navbar__theme-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    color: var(--text-secondary);
    border-radius: var(--radius-sm);
    transition: color 200ms ease, background-color 200ms ease;
}

.navbar__theme-toggle:hover {
    color: var(--text-primary);
    background-color: var(--surface-hover);
}

.navbar:not(.navbar--opaque) .navbar__theme-toggle       { color: var(--nh-icon); }
.navbar:not(.navbar--opaque) .navbar__theme-toggle:hover {
    color: var(--nh-link-on);
    background-color: var(--nh-icon-bg-h);
}

/* Moon / sun glyph — swaps on theme change */
.navbar__theme-icon::before { content: '☾'; font-size: var(--text-sm); line-height: 1; }

[data-theme="dark"] .navbar__theme-icon::before { content: '☀'; }

@media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) .navbar__theme-icon::before { content: '☀'; }
}

/* ─── Saved fabrics — heart icon with cart-style count badge ──────────────── */

.navbar__saved {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    color: var(--text-secondary);
    border-radius: var(--radius-sm);
    transition: color 200ms ease, background-color 200ms ease;
}

.navbar__saved:hover {
    color: var(--text-primary);
    background-color: var(--surface-hover);
}

.navbar:not(.navbar--opaque) .navbar__saved       { color: var(--nh-icon); }
.navbar:not(.navbar--opaque) .navbar__saved:hover {
    color: var(--nh-link-on);
    background-color: var(--nh-icon-bg-h);
}

.navbar__saved svg { width: 18px; height: 18px; }

.navbar__saved-count {
    position: absolute;
    top: 1px;
    right: 1px;
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 18px;
    height: 18px;
    padding: 0 4px;
    border-radius: var(--radius-full);
    background-color: var(--danger);
    color: #fff;
    font-size: 10px;
    font-weight: 600;
    line-height: 1;
    pointer-events: none;
}

/* ─── Search toggle — mobile only, opens the search modal ─────────────────── */

.navbar__search-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    color: var(--text-secondary);
    border-radius: var(--radius-sm);
    transition: color 200ms ease, background-color 200ms ease;
}

.navbar__search-toggle:hover {
    color: var(--text-primary);
    background-color: var(--surface-hover);
}

.navbar:not(.navbar--opaque) .navbar__search-toggle       { color: var(--nh-icon); }
.navbar:not(.navbar--opaque) .navbar__search-toggle:hover {
    color: var(--nh-link-on);
    background-color: var(--nh-icon-bg-h);
}

.navbar__search-toggle svg { width: 18px; height: 18px; }

/* ═══════════════════════════════════════════════════════════════════════════
   Responsive
   ═══════════════════════════════════════════════════════════════════════════ */

/* Desktop+: reveal username; sign-in switches from icon to text-only link */
@media (min-width: 768px) {
    .navbar__username    { display: block; }
    .navbar__action-link {
        width: auto;
        height: auto;
        background-color: transparent;
    }
    .navbar__action-link:hover { background-color: transparent; }
    .navbar__action-icon { display: none; }
    .navbar__action-text { display: block; }
}

/* Belt-and-suspenders against any element pushing page width past 100vw */
body { overflow-x: hidden; }


/* ═══════════════════════════════════════════════════════════════════════════
   Centre navigation — desktop 3-column grid layout
   ═══════════════════════════════════════════════════════════════════════════

   Mobile (<1024px): flex row — brand on left (margin-right:auto), actions right.
   Desktop (≥1024px): 3-column grid so the nav is always truly centred
   regardless of logo / actions width asymmetry.
   ═══════════════════════════════════════════════════════════════════════════ */

/* Hide nav on mobile; hamburger is shown instead */
.navbar__nav { display: none; }

/* Hamburger hidden on desktop */
.navbar__hamburger {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    color: var(--text-secondary);
    border-radius: var(--radius-sm);
    transition: color 200ms ease, background-color 200ms ease;
    flex-shrink: 0;
}
.navbar__hamburger:hover {
    color: var(--text-primary);
    background-color: var(--surface-hover);
}
.navbar:not(.navbar--opaque) .navbar__hamburger       { color: var(--nh-icon); }
.navbar:not(.navbar--opaque) .navbar__hamburger:hover {
    color: var(--nh-link-on);
    background-color: var(--nh-icon-bg-h);
}

@media (min-width: 1024px) {

    /* Switch inner row to 3-column grid for true centering */
    .navbar__inner {
        display: grid;
        grid-template-columns: 1fr auto 1fr;
        gap: var(--space-4);
    }

    /* Brand stays left; remove the margin-right:auto used in the flex layout */
    .navbar__brand {
        margin-right: 0;
        align-self: center;
    }

    /* Nav in the centre column */
    .navbar__nav {
        display: flex;
        justify-content: center;
        align-items: center;
        align-self: center;
    }

    /* Actions pinned to the right */
    .navbar__actions {
        justify-self: end;
    }

    /* Hide hamburger on desktop */
    .navbar__hamburger { display: none; }
}


/* ═══════════════════════════════════════════════════════════════════════════
   Desktop nav menu
   ═══════════════════════════════════════════════════════════════════════════ */

.nav-menu {
    display: flex;
    align-items: center;
    list-style: none;
    margin: 0;
    padding: 0;
    gap: 0;
}

.nav-menu__item {
    position: relative;
}

/* Link + trigger share base styles */
.nav-menu__link,
.nav-menu__trigger {
    display: flex;
    align-items: center;
    gap: 5px;
    padding: 6px 12px;
    font-size: 11px;
    font-weight: 500;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--text-secondary);
    white-space: nowrap;
    text-decoration: none;
    background: none;
    border: none;
    cursor: pointer;
    border-radius: var(--radius-sm);
    transition: color 200ms ease, background-color 200ms ease;
    font-family: var(--font-body);
    line-height: 1;
}

.nav-menu__link:hover,
.nav-menu__trigger:hover {
    color: var(--text-primary);
    background-color: var(--surface-hover);
}

/* Active page */
.nav-menu__link[aria-current="page"] {
    color: var(--text-primary);
}
.nav-menu__link[aria-current="page"]::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 12px;
    right: 12px;
    height: 1px;
    background-color: var(--accent-gold);
}

/* Over transparent hero */
.navbar:not(.navbar--opaque) .nav-menu__link,
.navbar:not(.navbar--opaque) .nav-menu__trigger {
    color: var(--nh-action);
}
.navbar:not(.navbar--opaque) .nav-menu__link:hover,
.navbar:not(.navbar--opaque) .nav-menu__trigger:hover {
    color: var(--nh-link-on);
    background-color: var(--nh-icon-bg-h);
}
.navbar:not(.navbar--opaque) .nav-menu__link[aria-current="page"] {
    color: var(--nh-link-on);
}

/* Chevron on dropdown triggers */
.nav-menu__chevron {
    flex-shrink: 0;
    transition: transform 200ms ease;
}
[x-data] .nav-menu__trigger[aria-expanded="true"] .nav-menu__chevron {
    transform: rotate(180deg);
}

/* ── Dropdown panel ──────────────────────────────────────────────────────── */

.nav-menu__dropdown {
    position: absolute;
    top: calc(100% + 6px);
    left: 50%;
    transform: translateX(-50%);
    min-width: 180px;
    background-color: var(--bg-primary);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.10);
    padding: 6px 0;
    list-style: none;
    margin: 0;
    z-index: 200;
}

.nav-menu__dropdown-link {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 9px 18px;
    font-size: 12px;
    font-weight: 400;
    letter-spacing: 0.04em;
    color: var(--text-secondary);
    text-decoration: none;
    white-space: nowrap;
    transition: color 200ms ease, background-color 200ms ease;
}
.nav-menu__dropdown-link:hover {
    color: var(--text-primary);
    background-color: var(--surface-hover);
}

/* Dropdown transitions */
.nav-dropdown--enter        { transition: opacity 140ms ease, transform 140ms ease; }
.nav-dropdown--enter-start  { opacity: 0; transform: translateX(-50%) translateY(-4px); }
.nav-dropdown--enter-end    { opacity: 1; transform: translateX(-50%) translateY(0); }
.nav-dropdown--leave        { transition: opacity 100ms ease; }
.nav-dropdown--leave-start  { opacity: 1; }
.nav-dropdown--leave-end    { opacity: 0; }


/* ═══════════════════════════════════════════════════════════════════════════
   Mobile navigation drawer
   ═══════════════════════════════════════════════════════════════════════════ */

.mobile-nav {
    position: fixed;
    inset: 0;
    z-index: 9999;
}

/* Overlay fade transitions (on the wrapper) */
.mobile-nav--enter        { transition: opacity 220ms ease; }
.mobile-nav--enter-start  { opacity: 0; }
.mobile-nav--enter-end    { opacity: 1; }
.mobile-nav--leave        { transition: opacity 200ms ease; }
.mobile-nav--leave-start  { opacity: 1; }
.mobile-nav--leave-end    { opacity: 0; }

/* Backdrop */
.mobile-nav__backdrop {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.45);
    cursor: pointer;
}

/* Sliding panel */
.mobile-nav__panel {
    position: absolute;
    top: 0;
    left: 0;
    bottom: 0;
    width: min(320px, 85vw);
    background-color: var(--bg-primary);
    display: flex;
    flex-direction: column;
    overflow-y: auto;
    transform: translateX(-100%);
    transition: transform 300ms cubic-bezier(0.16, 1, 0.3, 1);
    box-shadow: 4px 0 24px rgba(0, 0, 0, 0.12);
}
.mobile-nav__panel--open {
    transform: translateX(0);
}

/* Header row inside panel */
.mobile-nav__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px;
    border-bottom: 1px solid var(--border-light);
    flex-shrink: 0;
}

.mobile-nav__brand {
    display: flex;
    align-items: center;
    text-decoration: none;
    opacity: 1;
    transition: opacity 200ms ease;
}
.mobile-nav__brand:hover { opacity: 0.7; }

.mobile-nav__close {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    color: var(--text-secondary);
    border-radius: var(--radius-sm);
    transition: color 200ms ease, background-color 200ms ease;
    flex-shrink: 0;
}
.mobile-nav__close:hover {
    color: var(--text-primary);
    background-color: var(--surface-hover);
}

/* Nav list */
.mobile-nav__list {
    list-style: none;
    margin: 0;
    padding: 12px 0;
    flex: 1;
}

.mobile-nav__link {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    padding: 12px 20px;
    font-size: 13px;
    font-weight: 500;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--text-secondary);
    text-decoration: none;
    background: none;
    border: none;
    cursor: pointer;
    font-family: var(--font-body);
    text-align: left;
    transition: color 200ms ease, background-color 200ms ease;
}
.mobile-nav__link:hover,
.mobile-nav__link:active {
    color: var(--text-primary);
    background-color: var(--surface-hover);
}
.mobile-nav__link[aria-current="page"] {
    color: var(--accent-gold);
}

/* Group trigger */
.mobile-nav__group-trigger {
    /* inherits .mobile-nav__link */
}

/* Chevron on group triggers */
.mobile-nav__chevron {
    flex-shrink: 0;
    transition: transform 200ms ease;
}
.mobile-nav__chevron--open {
    transform: rotate(180deg);
}

/* Child items inside collapsible group */
.mobile-nav__children {
    list-style: none;
    margin: 0;
    padding: 4px 0;
    background-color: var(--surface-raised, var(--surface-hover));
    border-top: 1px solid var(--border-subtle, var(--border-light));
    border-bottom: 1px solid var(--border-subtle, var(--border-light));
}

.mobile-nav__child-link {
    display: block;
    padding: 10px 20px 10px 32px;
    font-size: 12px;
    font-weight: 400;
    letter-spacing: 0.04em;
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 200ms ease, background-color 200ms ease;
}
.mobile-nav__child-link:hover {
    color: var(--text-primary);
    background-color: var(--surface-hover);
}