/* =========================================================
   HEADER
========================================================= */

.header {
    position: sticky;
    top: 0;
    z-index: 1000;

    width: 100%;
    height: 74px;

    background: rgba(255, 255, 255, 0.92);
    border-bottom: 1px solid rgba(231, 236, 242, 0.8);

    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
}

.header-inner {
    height: 100%;

    display: flex;
    align-items: center;

    gap: 45px;
}


/* =========================================================
   LOGO
========================================================= */

.brand {
    display: flex;
    align-items: center;

    flex-shrink: 0;
}

.brand img {
    display: block;

    height: 23px;
    width: auto;
}


/* =========================================================
   NAVIGATION
========================================================= */

.nav {
    display: flex;
    align-items: center;

    gap: 34px;

    margin-left: auto;
}

.nav a {
    color: #475467;

    font-size: 12px;
    font-weight: 500;

    text-decoration: none;

    transition: color 0.2s ease;
}

.nav a:hover {
    color: var(--primary);
}


/* =========================================================
   HEADER ACTIONS
========================================================= */

.header-actions {
    display: flex;
    align-items: center;

    gap: 12px;

    flex-shrink: 0;
}


/* =========================================================
   LANGUAGE
========================================================= */

.language-switch {
    display: flex;
    align-items: center;

    gap: 7px;

    margin-right: 4px;
}

.language-switch a {
    color: #98A2B3;

    font-size: 10px;
    font-weight: 500;

    text-decoration: none;

    transition: color 0.2s ease;
}

.language-switch a:hover,
.language-switch a.active {
    color: var(--primary);
}

.language-switch span {
    display: block;

    width: 1px;
    height: 11px;

    background: #D0D5DD;
}


/* =========================================================
   LOGIN ICON
========================================================= */

.login-icon {
    width: 40px;
    height: 40px;

    display: flex;
    align-items: center;
    justify-content: center;

    flex-shrink: 0;

    background: #FFFFFF;

    border: 1px solid #E4E7EC;
    border-radius: 50%;

    text-decoration: none;

    transition:
        border-color 0.2s ease,
        background 0.2s ease,
        transform 0.2s ease;
}

.login-icon {
    position: relative;

    width: 40px;
    height: 40px;

    display: flex;
    align-items: center;
    justify-content: center;

    border: 1px solid #E4E7EC;
    border-radius: 50%;

    background: #FFFFFF;
}


/* Tooltip */

.login-icon::after {
    content: "Login";
    position: absolute;
    top: calc(100% + 10px);
    left: 50%;
    transform: translateX(-50%) translateY(-4px);
    padding: 6px 10px;
    color: #FFFFFF;
    background: #0084ff;
    border-radius: 6px;

    font-size: 10px;
    font-weight: 500;
    white-space: nowrap;

    opacity: 0;
    visibility: hidden;

    pointer-events: none;

    transition:
        opacity 0.2s ease,
        transform 0.2s ease;

    z-index: 100;
}


.login-icon:hover {
    border-color: var(--primary);
    background: var(--primary-soft);

    transform: translateY(-1px);
}


.login-icon:hover::after {
    opacity: 1;
    visibility: visible;

    transform: translateX(-50%) translateY(0);
}

.login-icon img {
    display: block;

    width: 17px;
    height: 17px;

    object-fit: contain;
}


/* =========================================================
   HAMBURGER
========================================================= */

.hamburger {
    display: none;

    width: 40px;
    height: 40px;

    padding: 0;

    align-items: center;
    justify-content: center;
    flex-direction: column;

    gap: 5px;

    background: #FFFFFF;

    border: 1px solid #E4E7EC;
    border-radius: 50%;

    cursor: pointer;
}

.hamburger span {
    display: block;

    width: 16px;
    height: 1.5px;

    background: #344054;

    border-radius: 5px;

    transition:
        transform 0.25s ease,
        opacity 0.25s ease;
}


/* Hamburger -> X */

.hamburger.active span:nth-child(1) {
    transform: translateY(6.5px) rotate(45deg);
}

.hamburger.active span:nth-child(2) {
    opacity: 0;
}

.hamburger.active span:nth-child(3) {
    transform: translateY(-6.5px) rotate(-45deg);
}


/* =========================================================
   MOBILE MENU
========================================================= */

.mobile-menu {
    display: none;

    position: absolute;

    top: 74px;
    left: 0;

    width: 100%;

    background: #FFFFFF;

    border-top: 1px solid #F2F4F7;
    border-bottom: 1px solid #E4E7EC;

    box-shadow: 0 20px 40px rgba(16, 24, 40, 0.08);
}

.mobile-menu.active {
    display: block;
}

.mobile-menu-inner {
    padding-top: 15px;
    padding-bottom: 25px;
}

.mobile-menu nav {
    display: flex;
    flex-direction: column;
}

.mobile-menu nav a {
    display: flex;
    align-items: center;

    min-height: 52px;

    color: #344054;

    border-bottom: 1px solid #F2F4F7;

    font-size: 13px;
    font-weight: 500;

    text-decoration: none;
}

.mobile-menu nav a:hover {
    color: var(--primary);
}


/* =========================================================
   MOBILE MENU BOTTOM
========================================================= */

.mobile-menu-bottom {
    display: flex;
    flex-direction: column;

    gap: 18px;

    padding-top: 22px;
}


/* =========================================================
   MOBILE LANGUAGE
========================================================= */

.mobile-language {
    display: grid;
    grid-template-columns: 1fr 1fr;

    padding: 4px;

    background: #F2F4F7;

    border-radius: 9px;
}

.mobile-language a {
    padding: 8px 10px;

    color: #667085;

    border-radius: 6px;

    font-size: 11px;

    text-align: center;
    text-decoration: none;
}

.mobile-language a.active {
    color: var(--primary);

    background: #FFFFFF;

    box-shadow: 0 2px 5px rgba(16, 24, 40, 0.06);
}


/* =========================================================
   TABLET
========================================================= */

@media (max-width: 850px) {

    .nav {
        display: none;
    }

    .header-actions {
        margin-left: auto;
    }

    .header-cta {
        display: none;
    }

    .language-switch {
        display: none;
    }

    .hamburger {
        display: flex;
    }

}


/* =========================================================
   MOBILE
========================================================= */

@media (max-width: 500px) {

    .header {
        height: 66px;
    }

    .header-inner {
        gap: 10px;
    }

    .brand img {
        height: 21px;
    }

    .login-icon {
        width: 38px;
        height: 38px;
    }

    .login-icon img {
        width: 16px;
        height: 16px;
    }

    .hamburger {
        width: 38px;
        height: 38px;
    }

    .mobile-menu {
        top: 66px;
    }

}

/* =========================================================
   NAV DROPDOWN
========================================================= */

.nav-dropdown {
    position: relative;
}


.nav-dropdown-toggle {
    display: flex;
    align-items: center;

    gap: 6px;

    padding: 10px 0;

    color: #475467;
    background: none;

    border: 0;

    font-family: inherit;
    font-size: 12px;
    font-weight: 500;

    cursor: pointer;

    transition: color 0.2s ease;
}


.nav-dropdown:hover .nav-dropdown-toggle {
    color: var(--primary);
}


/* ARROW */

.dropdown-arrow {
    width: 6px;
    height: 6px;

    border-right: 1.5px solid currentColor;
    border-bottom: 1.5px solid currentColor;

    transform: rotate(45deg) translateY(-2px);

    transition: transform 0.2s ease;
}


.nav-dropdown:hover .dropdown-arrow {
    transform: rotate(225deg) translate(-1px, -1px);
}


/* =========================================================
   DROPDOWN MENU
========================================================= */

.nav-dropdown-menu {
    position: absolute;

    top: calc(100% + 8px);
    left: 50%;

    width: 245px;

    padding: 8px;

    background: #FFFFFF;

    border: 1px solid #EAECF0;
    border-radius: 10px;

    box-shadow:
        0 15px 35px rgba(16, 24, 40, 0.10);

    opacity: 0;
    visibility: hidden;

    transform:
        translateX(-50%) translateY(-5px);

    transition:
        opacity 0.2s ease,
        transform 0.2s ease,
        visibility 0.2s;

    z-index: 1000;
}


/* ทำพื้นที่เชื่อม ป้องกัน dropdown หายตอนเลื่อนเมาส์ */

.nav-dropdown-menu::before {
    content: "";

    position: absolute;

    left: 0;
    top: -12px;

    width: 100%;
    height: 12px;
}


.nav-dropdown:hover .nav-dropdown-menu {
    opacity: 1;
    visibility: visible;

    transform:
        translateX(-50%) translateY(0);
}


/* LINKS */

.nav-dropdown-menu a {
    display: block;

    padding: 11px 12px;

    color: #344054;

    border-radius: 7px;

    font-size: 11px;
    font-weight: 500;

    text-decoration: none;

    transition:
        color 0.2s ease,
        background 0.2s ease;
}


.nav-dropdown-menu a:hover {
    color: var(--primary);

    background: #F5FAFF;
}
/* =========================================================
   MOBILE NAV - cloned from desktop navigation
========================================================= */
@media (max-width: 850px) {
    .mobile-menu { z-index: 1100; max-height: calc(100vh - 74px); overflow-y: auto; }
    .mobile-menu nav .nav-dropdown { width: 100%; border-bottom: 1px solid #F2F4F7; }
    .mobile-menu nav .nav-dropdown-toggle {
        width: 100%; min-height: 52px; padding: 0; display: flex; align-items: center;
        justify-content: space-between; color: #344054; background: transparent;
        border: 0; font: inherit; font-size: 13px; font-weight: 500; cursor: pointer;
    }
    .mobile-menu nav .nav-dropdown-menu {
        position: static; display: none; width: 100%; min-width: 0; padding: 0 0 8px;
        border: 0; box-shadow: none; background: #F8FAFC;
    }
    .mobile-menu nav .nav-dropdown.mobile-open .nav-dropdown-menu { display: block; }
    .mobile-menu nav .nav-dropdown-menu a { min-height: 44px; padding: 0 16px; border-bottom: 0; }
    .mobile-menu nav .nav-dropdown.mobile-open .dropdown-arrow { transform: rotate(180deg); }
}
@media (max-width: 500px) {
    .mobile-menu { max-height: calc(100vh - 66px); }
}