/**
 * NetStore Enterprise – Header CSS
 */

/* TOPBAR */
.ns-topbar {
    background: var(--ns-navy);
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.75rem;
    padding: 7px 0;
    letter-spacing: 0.02em;
}
.ns-topbar__inner {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.ns-topbar a {
    color: rgba(255, 255, 255, 0.6);
    text-decoration: none;
    transition: color var(--ns-transition);
}
.ns-topbar a:hover {
    color: #fff;
}
.ns-topbar__links {
    display: flex;
    gap: 20px;
}

/* HEADER */
.ns-header {
    background: var(--ns-bg-white);
    border-bottom: 1px solid var(--ns-border);
    position: sticky;
    top: 0;
    z-index: 200;
    box-shadow:
        0 1px 0 var(--ns-border),
        0 2px 12px rgba(13, 31, 60, 0.04);
}
.ns-header__inner {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
    height: 64px;
    display: flex;
    align-items: center;
    gap: 32px;
}

/* Logo */
.ns-header__logo {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--ns-navy);
    letter-spacing: -0.02em;
    text-decoration: none;
    flex-shrink: 0;
    font-family: var(--ns-font);
}

.ns-header__logo:visited {
    color: var(--ns-navy);
}

.ns-header__logo span {
    color: var(--ns-accent);
}
.ns-header__logo:hover {
    opacity: 0.85;
    color: var(--ns-navy);
}

/* Search */
.ns-header__search {
    flex: 1;
    max-width: 480px;
    display: flex;
    border: 1.5px solid var(--ns-border);
    border-radius: var(--ns-radius);
    overflow: hidden;
    transition: border-color var(--ns-transition);
}
.ns-header__search:focus-within {
    border-color: var(--ns-accent);
}
.ns-header__search-input {
    flex: 1;
    border: none;
    outline: none;
    padding: 9px 14px;
    font-family: var(--ns-font) !important;
    font-size: 0.875rem !important;
    color: var(--ns-text);
    background: transparent;
    border: none !important;
    border-radius: 0px !important;
}
.ns-header__search-input::placeholder {
    color: var(--ns-text-light) !important;
    font-size: 0.875rem !important;
    font-weight: 500;
}
.ns-header__search-btn {
    background: var(--ns-accent);
    color: white;
    border: none;
    padding: 0 16px;
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.04em;
    font-family: var(--ns-font);
    cursor: pointer;
    transition: background var(--ns-transition);
    white-space: nowrap;
    border-radius: 0px !important;
}
.ns-header__search-btn:hover {
    background: var(--ns-accent-hover);
    color: white;
    border: none;
    padding: 0 16px;
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.04em;
    font-family: var(--ns-font);
    cursor: pointer;
    transition: background var(--ns-transition);
    white-space: nowrap;
    border-radius: 0px !important;
}

/* Actions */
.ns-header__actions {
    margin-left: auto;
    display: flex;
    gap: 6px;
    align-items: center;
}
.ns-header__action-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: none;
    border: 1.5px solid var(--ns-border);
    border-radius: var(--ns-radius);
    padding: 7px 14px;
    font-family: var(--ns-font);
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--ns-text);
    cursor: pointer;
    white-space: nowrap;
    text-decoration: none;
    transition:
        border-color var(--ns-transition),
        color var(--ns-transition);
}
.ns-header__action-btn:hover {
    border-color: var(--ns-accent);
    color: var(--ns-accent);
}

/* Cart button – primary style */
.ns-header__action-btn--cart {
    background: var(--ns-accent);
    border-color: var(--ns-accent);
    color: #fff;
}

.ns-header__action-btn--cart:visited {
    color: #fff;
}

.ns-header__action-btn--cart:hover {
    background: var(--ns-accent-hover);
    border-color: var(--ns-accent-hover);
    color: #fff;
}
.ns-header__cart-count {
    background: rgba(255, 255, 255, 0.25);
    border-radius: 10px;
    padding: 1px 7px;
    font-size: 0.72rem;
    font-weight: 700;
    min-width: 20px;
    text-align: center;
}

/* NAV */
.ns-nav {
    background: var(--ns-navy);
}
.ns-nav__inner {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    gap: 0;
    overflow-x: auto;
}

.ns-nav__inner a:visited {
    color: rgba(255, 255, 255, 0.78) !important;
    text-decoration: none;
}

.ns-nav__item {
    color: rgba(255, 255, 255, 0.78);
    font-size: 0.8rem;
    font-weight: 500;
    padding: 11px 16px;
    text-decoration: none;
    letter-spacing: 0.02em;
    border-bottom: 2px solid transparent;
    transition:
        color var(--ns-transition),
        border-color var(--ns-transition);
    white-space: nowrap;
}
.ns-nav__item:hover {
    color: #fff;
    border-bottom-color: rgba(255, 255, 255, 0.4);
}

/* Breadcrumb */
.breadcrumbs {
    max-width: 1280px;
    margin: 0 auto;
    padding: 14px 24px;
}
.items {
    display: flex;
    align-items: center;
    gap: 6px;
    flex-wrap: wrap;
    font-size: 0.78rem;
    color: var(--ns-text-muted);
    list-style: none;
    padding: 0;
    margin: 0;
}
.items .item a {
    color: var(--ns-text-muted);
    text-decoration: none;
}
.items .item a:hover {
    color: var(--ns-accent);
}
.items .item + .item::before {
    content: "›";
    margin-right: 6px;
    color: var(--ns-border);
}

/* Responsive */
@media (max-width: 768px) {
    .ns-header__inner {
        height: 56px;
        gap: 16px;
    }
    .ns-header__search {
        max-width: 100%;
    }
    .ns-header__action-btn:not(.ns-header__action-btn--cart) {
        display: none;
    }
}

/* ══════════════════════════════════════════════════
   RESPONSIVE HEADER — mobile/tablet
══════════════════════════════════════════════════ */

/* ── 900px — tablet ── */
@media (max-width: 900px) {
    .ns-topbar__tagline {
        display: none;
    }
    .ns-topbar__inner {
        justify-content: center;
    }
    .ns-topbar__links {
        gap: 14px;
    }

    /* Header: giảm gap */
    .ns-header__inner {
        gap: 16px;
    }
    .ns-header__search {
        max-width: 320px;
    }

    /* Nav: scroll ngang */
    .ns-nav__inner {
        padding: 0 16px;
    }
}

/* ── 768px — mobile landscape ── */
@media (max-width: 768px) {
    /* Topbar: compact */
    .ns-topbar {
        padding: 5px 0;
    }
    .ns-topbar__inner {
        padding: 0 16px;
    }
    .ns-topbar__links {
        gap: 12px;
        font-size: 0.7rem;
    }

    /* Header */
    .ns-header__inner {
        height: 56px;
        gap: 10px;
        padding: 0 16px;
    }
    /* Search: flex: 1 nhưng min-width nhỏ hơn */
    .ns-header__search {
        flex: 1;
        min-width: 0;
        max-width: 100%;
    }
    .ns-header__search-input {
        font-size: 0.8rem !important;
        padding: 8px 10px;
    }
    .ns-header__search-btn {
        padding: 0 12px;
        font-size: 0.75rem;
    }
    /* Actions: chỉ giữ Cart */
    .ns-header__action-btn:not(.ns-header__action-btn--cart) {
        display: none;
    }
    .ns-header__action-btn--cart {
        padding: 7px 12px;
        font-size: 0.78rem;
    }

    /* Nav: scroll ngang, no scrollbar */
    .ns-nav__inner {
        padding: 0 16px;
        -webkit-overflow-scrolling: touch;
        scrollbar-width: none;
    }
    .ns-nav__inner::-webkit-scrollbar {
        display: none;
    }
    .ns-nav__item {
        padding: 11px 12px;
        font-size: 0.78rem;
    }
}

/* ── 480px — mobile portrait ── */
@media (max-width: 480px) {
    /* Topbar: ẩn hoàn toàn trên mobile nhỏ */
    .ns-topbar {
        display: none;
    }

    /* Header compact */
    .ns-header__inner {
        height: 52px;
        padding: 0 12px;
        gap: 8px;
    }
    .ns-header__logo {
        font-size: 1.2rem;
    }

    .ns-header__search-input {
        padding: 7px 8px;
    }
    .ns-header__search-btn {
        padding: 0 10px;
    }

    .ns-header__cart-label {
        display: none;
    }
    .ns-header__action-btn--cart {
        padding: 7px 10px;
        gap: 4px;
    }

    /* Nav */
    .ns-nav__inner {
        padding: 0 12px;
    }
    .ns-nav__item {
        padding: 10px 10px;
        font-size: 0.75rem;
    }

    /* Breadcrumb */
    .breadcrumbs {
        padding: 10px 12px;
    }
}