/* =====================================================================
   COMPONENT: header.css
   Aliyan Collection - main header, navigation, icons, mobile menu.
   Markup lives in partials/header.html (injected by js/components/header.js).
   ---------------------------------------------------------------------
   HOME page  (body[data-page="home"]) : header is transparent over the
       hero and turns white when the page is scrolled (.header.sticky).
   ALL OTHER pages : header is always white so it is readable.
   Active link: header.js adds  .active  to the matching [data-nav] link.
   ===================================================================== */

/* ------------------------- Header bar ------------------------- */
.header {
    position: fixed;
    top: 0;
    left: 0;
    z-index: var(--z-header);
    width: 100%;
    padding: 25px 0;
    background-color: transparent;
    transition: background-color 0.6s var(--ease-smooth), padding 0.6s var(--ease-smooth), box-shadow 0.6s var(--ease-smooth);
}

.header.sticky {
    padding: 15px 0;
    background-color: var(--secondary-color);
    border-bottom: 1px solid var(--light-bg);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

/* Transparent state = white text on the hero image */
.header:not(.sticky) .nav-links a,
.header:not(.sticky) .hamburger {
    color: var(--secondary-color);
}

.navbar {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

/* ------------------------- Logo ------------------------- */
.logo {
    flex-grow: 1;
    text-align: center;
}

.logo a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    line-height: 0;                     /* no extra inline gap around the images */
}

.logo img {
    height: 56px;
    width: auto;
    vertical-align: middle;
    filter: invert(1);
    opacity: 0;                         /* logo appears once the header turns white */
    transition: filter 0.6s var(--ease-smooth), opacity 0.6s var(--ease-smooth);
}

.logo-text-img {
    display: inline-block;
    height: 56px;
    width: auto;                        /* width follows the image ratio, so nothing is cropped */
    max-width: 100%;
    margin-left: 5px;
    object-fit: contain;
    vertical-align: middle;
}

.header.sticky .logo img {
    filter: none;
    opacity: 1;
}

/* ------------------------- Desktop links ------------------------- */
.nav-links {
    position: absolute;
    left: 15px;
    display: flex;
    list-style: none;
}

.nav-links li {
    margin-right: 20px;
}

.nav-links a {
    position: relative;
    padding: 5px 0;
    font-size: 0.9em;
    text-transform: uppercase;
    letter-spacing: var(--ls-tight);
    transition: color 0.4s var(--ease-smooth), opacity 0.4s var(--ease-smooth);
}

/* animated underline (hover + current page) */
.nav-links a::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    width: 100%;
    height: 1px;
    background-color: currentColor;
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s var(--ease-smooth);
}

.nav-links a:hover::after,
.nav-links a.active::after,
.nav-links a[aria-current="page"]::after {
    transform: scaleX(1);
}

.nav-links a:hover {
    opacity: 0.7;
}

/* ------------------------- Icons (search, account, wishlist, cart) ------------------------- */
.nav-icons {
    position: absolute;
    right: 15px;
    display: flex;
    align-items: center;
}

.nav-icons > a {
    position: relative;
    margin-left: 15px;
    transition: opacity 0.4s var(--ease-smooth), transform 0.4s var(--ease-smooth);
}

.nav-icons > a:hover {
    opacity: 0.7;
    transform: scale(1.06);
}

.nav-icons > a.clicked {
    animation: tapEffect 0.25s var(--ease-smooth);       /* header.js removes .clicked after 250 ms */
}

@keyframes tapEffect {
    0%   { transform: scale(1); }
    50%  { transform: scale(0.94); }
    100% { transform: scale(1); }
}

.nav-icon-img {
    display: block;
    width: auto;
    height: 20px;
    filter: invert(1);                  /* white icons on the transparent header */
    transition: filter 0.6s var(--ease-smooth);
}

.header.sticky .nav-icon-img {
    filter: none;                       /* black icons on the white header */
}

/* Little number bubble on wishlist / cart icons.
   Hidden until JS sets a count (style.display = 'block') or adds .visible */
.cart-count {
    position: absolute;
    top: -6px;
    right: -6px;
    display: none;
    min-width: 16px;
    padding: 2px 5px;
    border-radius: 50%;
    background-color: var(--primary-color);
    color: var(--secondary-color);
    font-size: 0.7em;
    font-weight: var(--fw-bold);
    line-height: 1.2;
    text-align: center;
}

.cart-count.visible,
.cart-count.has-items {
    display: block;
}

/* On the transparent header the bubble must stay visible: white bubble, black text */
.header:not(.sticky) .cart-count {
    background-color: var(--secondary-color);
    color: var(--primary-color);
}

.header.sticky .cart-count {
    background-color: var(--primary-color);
    color: var(--secondary-color);
}

/* Small "pop" when the number changes (JS adds .bump) */
.cart-count.bump {
    animation: countBump 0.35s var(--ease-in-out-smooth);   /* header.js removes .bump after 350 ms */
}

@keyframes countBump {
    0%   { transform: scale(1); }
    50%  { transform: scale(1.2); }
    100% { transform: scale(1); }
}

/* ------------------------- Hamburger (mobile only) ------------------------- */
.hamburger {
    display: none;
    margin-left: 15px;
    font-size: 1.5em;
    font-style: normal;
    line-height: 1;
    cursor: pointer;
    user-select: none;
}

/* ------------------------- Mobile slide-in menu -------------------------
   Layout (top -> bottom): brand + close | search | 7 links | account / wishlist / cart | social | copyright.
   The panel is a flex column: .mm-bottom has margin-top:auto, so it sits at the bottom on tall phones
   and everything simply scrolls on very short ones. Black/white only (CSS variables).               */
.mm-backdrop {
    position: fixed;
    inset: 0;
    z-index: calc(var(--z-mobile-menu) - 1);
    background: rgba(0, 0, 0, 0.55);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.5s var(--ease-in-out-smooth), visibility 0s linear 0.5s;
}

.mm-backdrop.open {
    opacity: 1;
    visibility: visible;
    transition: opacity 0.5s var(--ease-in-out-smooth), visibility 0s;
}

.mobile-nav {
    position: fixed;
    top: 0;
    left: 0;
    z-index: var(--z-mobile-menu);
    display: flex;
    flex-direction: column;
    width: 100%;                        /* full-screen menu (was 85vw / max 320px) */
    max-width: none;
    height: 100%;
    height: 100dvh;
    /* safe-area-inset = notches / home bar on modern phones */
    padding: max(18px, env(safe-area-inset-top)) 20px max(20px, env(safe-area-inset-bottom)) max(20px, env(safe-area-inset-left));
    background-color: var(--primary-color);
    color: var(--secondary-color);
    overflow-y: auto;
    overscroll-behavior: contain;
    transform: translateX(-100%);
    visibility: hidden;
    transition: transform 0.5s var(--ease-in-out-smooth), visibility 0s linear 0.5s;
}

.mobile-nav.open {
    transform: translateX(0);
    visibility: visible;
    transition: transform 0.5s var(--ease-in-out-smooth), visibility 0s;
}

/* --- top row: brand + close --- */
.mm-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 18px;
}

.mm-brand {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    min-width: 0;
    line-height: 0;
}

/* the header logo files are black on white -> invert them to white on the black panel */
.mm-brand img {
    width: auto;
    filter: invert(1);
}

.mm-brand-mark { height: 48px; }
.mm-brand-text { height: 40px; }

.mobile-nav .close-btn {
    display: flex;
    flex: 0 0 auto;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    color: var(--secondary-color);
    font-size: 1rem;
    font-style: normal;
    line-height: 1;
    cursor: pointer;
    transition: background-color 0.4s var(--ease-smooth), border-color 0.4s var(--ease-smooth);
}

.mobile-nav .close-btn:hover,
.mobile-nav .close-btn:focus-visible {
    border-color: var(--secondary-color);
    background-color: rgba(255, 255, 255, 0.12);
}

/* --- search box (a button that opens the normal search bar) --- */
.mm-search {
    display: flex;
    align-items: center;
    gap: 12px;
    width: 100%;
    min-height: 48px;
    padding: 0 18px;
    border: 1px solid rgba(255, 255, 255, 0.28);
    border-radius: 999px;
    background-color: rgba(255, 255, 255, 0.06);
    color: rgba(255, 255, 255, 0.7);
    font-family: inherit;
    font-size: 0.95em;
    text-align: left;
    cursor: pointer;
    transition: border-color 0.4s var(--ease-smooth), background-color 0.4s var(--ease-smooth);
}

.mm-search:hover,
.mm-search:focus-visible {
    border-color: var(--secondary-color);
    background-color: rgba(255, 255, 255, 0.1);
}

.mobile-nav .mm-icon {
    flex: 0 0 auto;
    width: 18px;
    height: 18px;
    filter: invert(1);                  /* dark svg icons -> white */
}

/* --- the 7 links --- */
/* on tall phones the link rows grow (up to 64px each) so no big empty gap is left above the bottom block */
.mobile-nav nav {
    display: flex;
    flex: 1 1 auto;
    flex-direction: column;
}

.mm-links {
    display: flex;
    flex: 1 1 auto;
    flex-direction: column;
    max-height: 460px;
    margin: 14px 0 0;
    padding: 0;
    list-style: none;
}

.mm-links li {
    display: flex;
    flex: 1 1 44px;
    max-height: 64px;
    margin: 0;
}

.mm-links a {
    flex: 1 1 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 44px;                   /* comfortable tap target */
    padding: 0 4px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    color: rgba(255, 255, 255, 0.72);
    font-size: 1.05em;
    letter-spacing: var(--ls-wide);
    text-transform: uppercase;
    transition: color 0.4s var(--ease-smooth), padding-left 0.4s var(--ease-smooth);
}

.mm-links a:hover,
.mm-links a:focus-visible {
    padding-left: 10px;
    color: var(--secondary-color);
}

/* current page: full white + a dot */
.mm-links a.active {
    color: var(--secondary-color);
    font-weight: var(--fw-bold);
}

.mm-links a.active::after {
    content: '';
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background-color: var(--secondary-color);
}

/* --- bottom block --- */
.mm-bottom {
    margin-top: auto;                   /* pushes this block to the bottom of the panel */
    padding-top: 24px;
}

.mm-actions {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
}

.mm-btn {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    min-width: 0;
    min-height: 48px;
    padding: 0 8px;
    border: 1px solid rgba(255, 255, 255, 0.4);
    border-radius: 999px;
    background-color: transparent;
    color: var(--secondary-color);
    font-family: inherit;
    font-size: 0.74em;
    letter-spacing: var(--ls-tight);
    text-transform: uppercase;
    white-space: nowrap;
    cursor: pointer;
    transition: background-color 0.4s var(--ease-smooth), border-color 0.4s var(--ease-smooth), color 0.4s var(--ease-smooth);
}

.mm-btn:hover,
.mm-btn:focus-visible {
    border-color: var(--secondary-color);
    background-color: rgba(255, 255, 255, 0.12);
}

/* cart = main action: filled white */
.mm-btn-primary {
    grid-column: 1 / -1;
    border-color: var(--secondary-color);
    background-color: var(--secondary-color);
    color: var(--primary-color);
    font-weight: var(--fw-bold);
}

.mm-btn-primary:hover,
.mm-btn-primary:focus-visible {
    background-color: rgba(255, 255, 255, 0.86);
}

.mobile-nav .mm-btn-primary .mm-icon {
    filter: none;                       /* dark icon on the white button */
}

.mm-count {
    display: none;
    min-width: 20px;
    padding: 2px 6px;
    border-radius: 999px;
    background-color: var(--secondary-color);
    color: var(--primary-color);
    font-size: 0.9em;
    font-weight: var(--fw-bold);
    line-height: 1.3;
    letter-spacing: 0;
    text-align: center;
}

.mm-count.visible {
    display: inline-block;
}

.mm-btn-primary .mm-count {
    background-color: var(--primary-color);
    color: var(--secondary-color);
}

/* the two half-width buttons: the number hangs on the corner (like the header icons), so it never makes the label wider */
.mm-actions .mm-btn:not(.mm-btn-primary) .mm-count {
    position: absolute;
    top: -7px;
    right: 8px;
    border: 1px solid var(--primary-color);
}

/* very small phones: one button per row */
@media (max-width: 350px) {
    .mm-actions {
        grid-template-columns: 1fr;
    }
}

/* --- social + copyright --- */
.mm-social {
    display: flex;
    justify-content: center;
    gap: 6px;
    margin-top: 22px;
    padding-top: 16px;
    border-top: 1px solid rgba(255, 255, 255, 0.12);
}

.mm-social a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    opacity: 0.85;
    transition: opacity 0.4s var(--ease-smooth), transform 0.4s var(--ease-smooth);
}

.mm-social a:hover,
.mm-social a:focus-visible {
    opacity: 1;
    transform: translateY(-2px);
}

.mobile-nav .mm-social .mm-icon {
    width: 22px;
    height: 22px;
}

.mm-copy {
    margin: 10px 0 0;
    color: rgba(255, 255, 255, 0.45);
    font-size: 0.75em;
    letter-spacing: var(--ls-tight);
    text-align: center;
}

.mobile-nav :focus-visible {
    outline: 2px solid var(--secondary-color);
    outline-offset: 2px;
}

/* short phones (e.g. iPhone SE 375x667): tighter spacing so everything fits without scrolling.
   Links stay 44px high (tap target); only the gaps shrink. Shorter than that -> the panel scrolls. */
@media (max-height: 700px) {
    .mobile-nav {
        padding-top: max(12px, env(safe-area-inset-top));
        padding-bottom: max(14px, env(safe-area-inset-bottom));
    }
    .mm-top { margin-bottom: 8px; }
    .mm-brand-mark { height: 44px; }
    .mm-brand-text { height: 36px; }
    .mm-search { min-height: 44px; }
    .mm-links { margin-top: 8px; }
    .mm-bottom { padding-top: 10px; }
    .mm-btn { min-height: 44px; }
    .mm-social { margin-top: 10px; padding-top: 8px; }
    .mm-copy { margin-top: 6px; }
}

/* =====================================================================
   INNER PAGES (everything except home): header is ALWAYS white
   ===================================================================== */
body:not([data-page="home"]) .header {
    padding: 15px 0;
    background-color: var(--secondary-color);
    border-bottom: 1px solid var(--light-bg);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

body:not([data-page="home"]) .header .nav-links a,
body:not([data-page="home"]) .header .hamburger {
    color: var(--primary-color);
}

body:not([data-page="home"]) .header .nav-icon-img {
    filter: none;
}

body:not([data-page="home"]) .header .logo img {
    filter: none;
    opacity: 1;
}

body:not([data-page="home"]) .header .cart-count {
    background-color: var(--primary-color);
    color: var(--secondary-color);
}

/* =====================================================================
   RESPONSIVE
   ===================================================================== */
@media (max-width: 992px) {
    .navbar {
        justify-content: space-between;
        padding: 0 15px;
    }

    .hamburger {
        display: block;
        position: static;
        order: 1;
        flex-shrink: 0;
        margin-left: 0;
    }

    .logo {
        order: 2;
        flex-grow: 1;
        margin: 0 25px;
        text-align: center;
    }

    .logo img {
        height: 50px;
    }

    .logo-text-img {
        height: 50px;
    }

    .nav-icons {
        position: static;
        order: 3;
        flex-shrink: 0;
        gap: 15px;
    }

    .nav-icons > a {
        margin-left: 0;
    }

    .nav-links {
        display: none;
    }
}

@media (max-width: 768px) {
    .navbar {
        padding: 0 12px;
    }

    .logo {
        margin: 0 20px;
    }

    .logo img {
        height: 46px;
    }

    .logo-text-img {
        height: 46px;
    }

    .nav-icons {
        gap: 12px;
    }

    .nav-icon-img {
        height: 22px;
    }
}

@media (max-width: 480px) {
    .navbar {
        padding: 0 10px;
    }

    .logo {
        margin: 0 10px;
    }

    .logo img {
        height: 40px;
    }

    .logo-text-img {
        height: 40px;
    }

    .nav-icons {
        gap: 9px;
    }

    .nav-icon-img {
        height: 20px;
    }

    .hamburger {
        font-size: 1.3em;
    }
}

/* small phones: both logos (mark + "Collection" wordmark) stay visible, just a little smaller */
@media (max-width: 380px) {
    .logo {
        margin: 0 8px;
    }

    .logo img,
    .logo-text-img {
        height: 36px;
    }

    .logo-text-img {
        margin-left: 3px;
    }
}

@media (max-width: 330px) {
    .logo img,
    .logo-text-img {
        height: 30px;
    }
}

@media (prefers-reduced-motion: reduce) {
    .header,
    .logo img,
    .nav-icon-img,
    .mobile-nav,
    .mm-backdrop,
    .mm-links a,
    .mm-btn,
    .mm-social a,
    .nav-links a::after {
        transition: none;
    }
}