/* ================================================================
   CBS HEADER — Top bar + Logo bar + Navigation + Mobile menu
   Two variants:
   - Default (inner pages): white bg, color logo, blue nav bar
   - Transparent (homepage): overlays hero, white text/logo, no bg
   ================================================================ */

/* ── Top Bar (language + phone, mobile only) ── */
.cbs-topbar {
    background: var(--cbs-blue);
    color: #FFFFFF;
    font-size: var(--text-base);
    padding: 10px 0;
    position: relative;
    z-index: 1001;
}

.cbs-topbar__inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.cbs-topbar__lang {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    color: var(--cbs-white);
    font-weight: 600;
    font-size: var(--text-base);
    text-transform: uppercase;
    background: rgba(255,255,255,.15);
    padding: 6px 14px;
    border-radius: var(--radius-full);
    border: 1px solid rgba(255,255,255,.3);
    transition: background var(--transition-fast);
}

.cbs-topbar__lang:hover {
    background: rgba(255,255,255,.25);
}

.cbs-topbar__lang img {
    width: 24px;
    height: 17px;
    display: inline-block;
}

.cbs-topbar__phone {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    color: var(--cbs-white);
    font-weight: 700;
    font-size: var(--text-base);
}

.cbs-topbar__phone a {
    color: var(--cbs-white);
}

.cbs-topbar__phone:hover {
    opacity: .85;
}

.cbs-topbar__phone svg {
    width: 18px;
    height: 18px;
    fill: currentColor;
}

/* ================================================================
   DEFAULT HEADER (inner pages) — white bg, color logo, blue nav
   ================================================================ */

.cbs-header {
    background: var(--bg-card);
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: var(--shadow-sm);
    transition: background var(--transition-base), box-shadow var(--transition-base);
}

.cbs-header__main {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-md) 0;
    gap: var(--space-lg);
}

.cbs-header__logo {
    flex-shrink: 0;
}

.cbs-header__logo-img {
    height: 50px;
    width: 180px;
    object-fit: contain;
}

/* Default: show color logo, hide white */
.cbs-header__logo-img--white {
    display: none;
}
.cbs-header__logo-img--color {
    display: block;
}

/* Dark mode: show white logo */
[data-theme="dark"] .cbs-header__logo-img--white {
    display: block;
}
[data-theme="dark"] .cbs-header__logo-img--color {
    display: none;
}

/* ── Search bar (pill-shaped, desktop) ── */
.cbs-header__search {
    flex: 1;
    max-width: 500px;
    display: flex;
    border-radius: var(--radius-full);
    overflow: hidden;
    border: 1px solid var(--cbs-gray-300);
    transition: border-color var(--transition-fast);
}

.cbs-header__search:focus-within {
    border-color: var(--cbs-blue);
    box-shadow: 0 0 0 3px rgba(37, 55, 123, .1);
}

.cbs-header__search-input {
    flex: 1;
    padding: 10px 20px;
    border: none;
    font-size: var(--text-sm);
    outline: none;
    background: var(--bg-card);
    color: var(--text-body);
}

.cbs-header__search-btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    padding: 10px 24px;
    background: var(--cbs-red);
    color: var(--cbs-white);
    border: none;
    font-size: var(--text-sm);
    font-weight: 600;
    text-transform: uppercase;
    cursor: pointer;
    transition: background var(--transition-fast);
}

.cbs-header__search-btn:hover {
    background: var(--cbs-red-dark);
}

.cbs-header__search-btn svg {
    width: 16px;
    height: 16px;
    fill: currentColor;
}

/* ── Right side: phone + lang (desktop) ── */
.cbs-header__right {
    display: flex;
    align-items: center;
    gap: var(--space-lg);
    flex-shrink: 0;
}

.cbs-header__phone-desktop {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-weight: 700;
    font-size: var(--text-lg);
    color: var(--cbs-blue);
    white-space: nowrap;
}

.cbs-header__phone-desktop a {
    color: inherit;
}

.cbs-header__phone-desktop svg {
    width: 20px;
    height: 20px;
    fill: var(--cbs-red);
}

[data-theme="dark"] .cbs-header__phone-desktop,
[data-theme="dark"] .cbs-header__phone-desktop a {
    color: #FFFFFF;
}

/* ── Language Switcher (desktop) ── */
.cbs-lang-switcher {
    position: relative;
}

.cbs-lang-switcher__current {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 12px;
    background: var(--cbs-gray-100);
    border: 1px solid var(--cbs-gray-300);
    border-radius: var(--radius-full);
    font-size: var(--text-sm);
    font-weight: 600;
    font-family: var(--font-main);
    color: var(--cbs-gray-700);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.cbs-lang-switcher__current img {
    width: 20px;
    height: 14px;
    border-radius: 2px;
    box-shadow: 0 0 0 1px rgba(0,0,0,.1);
}

.cbs-lang-switcher__arrow {
    transition: transform var(--transition-fast);
}

.cbs-lang-switcher[open] .cbs-lang-switcher__arrow,
.cbs-lang-switcher--open .cbs-lang-switcher__arrow {
    transform: rotate(180deg);
}

.cbs-lang-switcher__current:hover {
    border-color: var(--cbs-blue);
    background: var(--cbs-gray-50);
}

.cbs-lang-switcher__dropdown {
    position: absolute;
    top: calc(100% + 6px);
    right: 0;
    min-width: 160px;
    background: var(--bg-card, var(--cbs-white));
    border: 1px solid var(--border-color, var(--cbs-gray-200));
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-6px);
    transition: all var(--transition-base);
    z-index: 200;
    overflow: hidden;
}

.cbs-lang-switcher--open .cbs-lang-switcher__dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.cbs-lang-switcher__option {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 16px;
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--text-body, var(--cbs-gray-700));
    transition: background var(--transition-fast);
}

.cbs-lang-switcher__option img {
    width: 20px;
    height: 14px;
    border-radius: 2px;
    box-shadow: 0 0 0 1px rgba(0,0,0,.1);
}

.cbs-lang-switcher__option:hover {
    background: var(--cbs-gray-50);
}

.cbs-lang-switcher__option--active {
    font-weight: 700;
    color: var(--cbs-blue);
}

/* ── Dark Mode Toggle Button ── */
.cbs-theme-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 38px;
    border: 1px solid var(--cbs-gray-300);
    border-radius: var(--radius-full);
    background: var(--cbs-gray-100);
    color: var(--cbs-gray-700);
    cursor: pointer;
    padding: 0;
    font-family: var(--font-main);
    transition: all var(--transition-fast);
}

.cbs-theme-btn:hover {
    background: var(--cbs-blue);
    color: var(--cbs-white);
    border-color: var(--cbs-blue);
    transform: rotate(20deg);
}

[data-theme="light"] .cbs-icon-sun  { display: none; }
[data-theme="light"] .cbs-icon-moon { display: block; }
[data-theme="dark"]  .cbs-icon-sun  { display: block; }
[data-theme="dark"]  .cbs-icon-moon { display: none; }
:root:not([data-theme]) .cbs-icon-sun  { display: none; }
:root:not([data-theme]) .cbs-icon-moon { display: block; }

/* ── Navigation ── */
.cbs-nav {
    background: var(--cbs-blue);
}

.cbs-nav__list {
    display: flex;
    justify-content: center;
    gap: 0;
    margin: 0;
    padding: 0;
    list-style: none;
}

.cbs-nav__item,
.cbs-nav .menu-item {
    position: relative;
    list-style: none;
}

.cbs-nav__link,
.cbs-nav .menu-item > a {
    display: block;
    padding: 14px 18px;
    color: #FFFFFF;
    font-size: var(--text-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    transition: all var(--transition-fast);
    position: relative;
}

/* Hover underline animation */
.cbs-nav .menu-item > a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 3px;
    background: var(--cbs-red);
    transition: width var(--transition-base), left var(--transition-base);
}

.cbs-nav .menu-item > a:hover::after,
.cbs-nav .current-menu-item > a::after {
    width: 100%;
    left: 0;
}

/* Hover/Active background */
.cbs-nav .menu-item > a:hover,
.cbs-nav .current-menu-item > a {
    background: rgba(255, 255, 255, .1);
}

/* Dropdown arrow for items with children */
.cbs-nav .menu-item-has-children > a {
    padding-right: 12px;
}
.cbs-nav .menu-item-has-children > a::before {
    content: '';
    display: inline-block;
    width: 0;
    height: 0;
    margin-right: 8px;
    vertical-align: middle;
    border-left: 3px solid transparent;
    border-right: 3px solid transparent;
    border-top: 4px solid currentColor;
    transition: transform var(--transition-fast);
}

.cbs-nav .menu-item-has-children:hover > a::before {
    transform: rotate(180deg);
}

/* ── Desktop Dropdown submenu ── */
.cbs-nav .sub-menu {
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 280px;
    background: var(--cbs-blue);
    box-shadow: var(--shadow-xl);
    border-radius: 0 0 var(--radius-md) var(--radius-md);
    z-index: 100;
    margin: 0;
    padding: var(--space-sm) 0;
    list-style: none;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition: opacity var(--transition-base), transform var(--transition-base), visibility var(--transition-base);
}

.cbs-nav .menu-item-has-children:hover > .sub-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.cbs-nav .sub-menu a {
    display: block;
    padding: 12px 24px;
    color: #FFFFFF;
    font-size: var(--text-sm);
    font-weight: 500;
    text-transform: none;
    transition: all var(--transition-fast);
    border-left: 3px solid transparent;
}

.cbs-nav .sub-menu a:hover {
    background: var(--cbs-blue-dark);
    color: #FFFFFF;
    font-weight: 700;
    border-left-color: #FFFFFF;
    padding-left: 28px;
}

/* ── Header Actions (theme toggle + hamburger) ── */
.cbs-header__actions {
    display: none;
    align-items: center;
    gap: var(--space-sm);
}

.cbs-theme-btn--mobile {
    display: none;
}

.cbs-menu-toggle {
    display: none;
    background: none;
    border: none;
    padding: var(--space-sm);
    cursor: pointer;
    color: var(--text-heading);
}

.cbs-menu-toggle svg {
    width: 28px;
    height: 28px;
    fill: currentColor;
}

.cbs-nav__search {
    display: none;
}

/* ================================================================
   TRANSPARENT HEADER (homepage only)
   Overlays the hero — white text, no background
   ================================================================ */

.cbs-header--transparent {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    background: transparent;
    box-shadow: none;
}

/* Homepage topbar variant */
.cbs-topbar--home {
    background: var(--cbs-blue-dark);
}

/* Dark mode topbar */
[data-theme="dark"] .cbs-topbar {
    background: var(--cbs-blue-dark, #1a2855);
}

/* White text/icons on transparent header */
.cbs-header--transparent .cbs-header__phone-desktop,
.cbs-header--transparent .cbs-header__phone-desktop a {
    color: var(--cbs-white);
}

.cbs-header--transparent .cbs-header__phone-desktop svg {
    fill: var(--cbs-white);
}

.cbs-header--transparent .cbs-lang-switcher__current {
    background: rgba(255, 255, 255, .15);
    border-color: rgba(255, 255, 255, .3);
    color: var(--cbs-white);
}

.cbs-header--transparent .cbs-lang-switcher__current:hover {
    background: rgba(255, 255, 255, .25);
    border-color: rgba(255, 255, 255, .5);
}

.cbs-header--transparent .cbs-theme-btn {
    background: rgba(255, 255, 255, .15);
    border-color: rgba(255, 255, 255, .3);
    color: var(--cbs-white);
}

.cbs-header--transparent .cbs-theme-btn:hover {
    background: rgba(255, 255, 255, .3);
    border-color: rgba(255, 255, 255, .5);
}

.cbs-header--transparent .cbs-menu-toggle {
    color: var(--cbs-white);
}

/* Transparent nav */
.cbs-header--transparent .cbs-nav {
    background: rgba(0, 0, 0, .15);
}

.cbs-header--transparent .cbs-nav .menu-item > a:hover,
.cbs-header--transparent .cbs-nav .current-menu-item > a {
    background: rgba(255, 255, 255, .15);
}

/* Transparent search */
.cbs-header--transparent .cbs-header__search {
    border-color: rgba(255, 255, 255, .3);
}

.cbs-header--transparent .cbs-header__search-input {
    background: rgba(255, 255, 255, .9);
}

/* White logo on transparent header */
.cbs-header--transparent .cbs-header__logo-img--white {
    display: block;
}
.cbs-header--transparent .cbs-header__logo-img--color {
    display: none;
}

/* ================================================================
   SCROLLED STATE — homepage header becomes solid (added via JS)
   ================================================================ */

.cbs-header--transparent.cbs-header--scrolled {
    position: fixed;
    background: var(--bg-card);
    box-shadow: var(--shadow-sm);
}

/* Scrolled: swap to color logo */
.cbs-header--transparent.cbs-header--scrolled .cbs-header__logo-img--white {
    display: none;
}
.cbs-header--transparent.cbs-header--scrolled .cbs-header__logo-img--color {
    display: block;
}

/* Scrolled: restore default desktop styles */
.cbs-header--transparent.cbs-header--scrolled .cbs-header__phone-desktop,
.cbs-header--transparent.cbs-header--scrolled .cbs-header__phone-desktop a {
    color: var(--cbs-blue);
}

.cbs-header--transparent.cbs-header--scrolled .cbs-header__phone-desktop svg {
    fill: var(--cbs-red);
}

.cbs-header--transparent.cbs-header--scrolled .cbs-lang-switcher__current {
    background: var(--cbs-gray-100);
    border-color: var(--cbs-gray-300);
    color: var(--cbs-gray-700);
}

.cbs-header--transparent.cbs-header--scrolled .cbs-theme-btn {
    background: var(--cbs-gray-100);
    border-color: var(--cbs-gray-300);
    color: var(--cbs-gray-700);
}

.cbs-header--transparent.cbs-header--scrolled .cbs-menu-toggle {
    color: var(--cbs-blue);
}

.cbs-header--transparent.cbs-header--scrolled .cbs-nav {
    background: var(--cbs-blue);
}

.cbs-header--transparent.cbs-header--scrolled .cbs-nav .menu-item > a:hover,
.cbs-header--transparent.cbs-header--scrolled .cbs-nav .current-menu-item > a {
    background: var(--cbs-blue-dark);
}

/* ================================================================
   MOBILE STYLES
   ================================================================ */
@media (max-width: 1024px) {
    .cbs-header__search { display: none; }
    .cbs-header__right { display: none; }
    .cbs-theme-btn--desktop { display: none; }

    /* Light mode mobile: white bg, color logo, blue icons */
    .cbs-header__actions { display: flex; }
    .cbs-theme-btn--mobile { display: inline-flex; }
    .cbs-menu-toggle { display: block; }

    .cbs-menu-toggle,
    .cbs-theme-btn--mobile {
        color: var(--cbs-blue);
        border-color: var(--cbs-gray-300);
        background: var(--cbs-gray-100);
    }

    /* Mobile nav toggle */
    .cbs-nav { display: none; }
    .cbs-nav--open { display: block; }

    /* Mobile search bar */
    .cbs-nav__search {
        display: flex;
        padding: var(--space-sm) var(--space-md);
        border-bottom: 1px solid rgba(255,255,255,.15);
    }
    .cbs-nav__search input {
        flex: 1;
        padding: 10px 16px;
        border: none;
        border-radius: var(--radius-full) 0 0 var(--radius-full);
        font-size: var(--text-sm);
        font-family: var(--font-main);
        background: rgba(255,255,255,.9);
        color: var(--cbs-gray-900);
        outline: none;
    }
    .cbs-nav__search button {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        padding: 10px 16px;
        border: none;
        border-radius: 0 var(--radius-full) var(--radius-full) 0;
        background: var(--cbs-red);
        color: #FFFFFF;
        cursor: pointer;
    }

    /* Mobile menu items */
    .cbs-nav__list,
    .cbs-nav .menu {
        flex-direction: column;
    }

    .cbs-nav .menu-item > a {
        padding: 18px 24px;
        border-bottom: 1px solid rgba(255,255,255,.1);
        font-size: var(--text-base);
    }

    .cbs-nav .menu-item > a::after {
        display: none;
    }

    /* Mobile sub-menu */
    .cbs-nav .sub-menu {
        position: static;
        box-shadow: none;
        background: var(--cbs-blue-dark);
        border-radius: 0;
        opacity: 1;
        visibility: visible;
        transform: none;
        padding: 0;
        display: none;
    }

    .cbs-nav .menu-item-has-children.cbs-nav__item--open > .sub-menu {
        display: block;
    }

    .cbs-nav .menu-item-has-children.cbs-nav__item--open > a::before {
        transform: rotate(180deg);
    }

    .cbs-nav .sub-menu a {
        color: rgba(255,255,255,.85);
        padding: 16px 24px 16px 44px;
        font-size: var(--text-base);
        border-left: none;
    }

    .cbs-nav .sub-menu a:hover {
        background: rgba(255,255,255,.05);
        color: #FFFFFF;
        font-weight: 700;
        border-left: none;
        padding-left: 44px;
    }

    /* Topbar visible on mobile */
    .cbs-topbar { display: block; }

    /* Transparent header: position below topbar */
    .cbs-header--transparent {
        top: auto;
    }

    /* Scrolled on mobile: stick to top */
    .cbs-header--transparent.cbs-header--scrolled {
        top: 0;
    }

    /* Transparent header mobile: white icons over hero */
    .cbs-header--transparent .cbs-menu-toggle,
    .cbs-header--transparent .cbs-theme-btn--mobile {
        color: #FFFFFF;
        border-color: rgba(255,255,255,.3);
        background: rgba(255,255,255,.15);
    }

    /* Nav open on homepage: nav stays blue */
    .cbs-header--transparent .cbs-nav.cbs-nav--open {
        background: var(--cbs-blue);
    }
}

@media (min-width: 1025px) {
    .cbs-topbar { display: none; }
    .cbs-header__actions { display: none; }
}

/* ================================================================
   DARK MODE — DESKTOP OVERRIDES
   ================================================================ */

/* Inner pages header */
[data-theme="dark"] .cbs-header {
    background: var(--bg-surface);
    box-shadow: 0 1px 0 var(--border-color);
}

/* Transparent header stays transparent */
[data-theme="dark"] .cbs-header--transparent {
    background: transparent;
    box-shadow: none;
}

[data-theme="dark"] .cbs-header--transparent .cbs-nav {
    background: rgba(0, 0, 0, .25);
}

/* Scrolled homepage */
[data-theme="dark"] .cbs-header--transparent.cbs-header--scrolled {
    background: var(--bg-surface);
    box-shadow: 0 1px 0 var(--border-color);
}

[data-theme="dark"] .cbs-header--transparent.cbs-header--scrolled .cbs-nav {
    background: var(--cbs-blue);
}

[data-theme="dark"] .cbs-header--transparent.cbs-header--scrolled .cbs-header__phone-desktop,
[data-theme="dark"] .cbs-header--transparent.cbs-header--scrolled .cbs-header__phone-desktop a {
    color: #FFFFFF;
}

/* Scrolled: keep white logo in dark mode */
[data-theme="dark"] .cbs-header--transparent.cbs-header--scrolled .cbs-header__logo-img--white {
    display: block;
}
[data-theme="dark"] .cbs-header--transparent.cbs-header--scrolled .cbs-header__logo-img--color {
    display: none;
}

/* Desktop submenu dark mode */
[data-theme="dark"] .cbs-nav .sub-menu {
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
}

[data-theme="dark"] .cbs-nav .sub-menu a {
    color: var(--text-body);
}

[data-theme="dark"] .cbs-nav .sub-menu a:hover {
    background: rgba(255,255,255,.08);
    color: #FFFFFF;
    font-weight: 700;
}

/* ================================================================
   DARK MODE — MOBILE OVERRIDES (must come after desktop dark rules)
   ================================================================ */
@media (max-width: 1024px) {
    /* Blue header instead of bg-surface */
    [data-theme="dark"] .cbs-header {
        background: var(--cbs-blue);
        box-shadow: 0 2px 8px rgba(0,0,0,.3);
    }

    /* White logo */
    [data-theme="dark"] .cbs-header .cbs-header__logo-img--white {
        display: block;
    }
    [data-theme="dark"] .cbs-header .cbs-header__logo-img--color {
        display: none;
    }

    /* White icons */
    [data-theme="dark"] .cbs-menu-toggle,
    [data-theme="dark"] .cbs-theme-btn--mobile {
        color: #FFFFFF;
        border-color: rgba(255,255,255,.3);
        background: rgba(255,255,255,.15);
    }

    /* Scrolled homepage */
    [data-theme="dark"] .cbs-header--transparent.cbs-header--scrolled {
        top: 0;
        background: var(--cbs-blue);
        box-shadow: 0 2px 8px rgba(0,0,0,.3);
    }

    [data-theme="dark"] .cbs-header--transparent.cbs-header--scrolled .cbs-menu-toggle,
    [data-theme="dark"] .cbs-header--transparent.cbs-header--scrolled .cbs-theme-btn {
        color: #FFFFFF;
        border-color: rgba(255,255,255,.3);
        background: rgba(255,255,255,.15);
    }
}