/* layout.css - Header, Footer, Container */

/* ── Header ──────────────────────────────────────────────────────────── */
.header {
    background-color: #fff;
    border-bottom: 1px solid #E2E8F0;
    position: sticky;
    top: 0;
    z-index: 1000;
    transition: box-shadow 0.2s ease-in-out;
    font-family: 'Mulish', sans-serif;
    /* Cần để mobile dropdown menu position:absolute đúng chỗ */
    overflow: visible;
}

.header.scrolled {
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.875rem 0;
}

/* Logo */
.header .logo {
    display: flex;
    align-items: center;
    text-decoration: none !important;
    flex-shrink: 0;
}

/* Nav reset — override TT25 global ul/a styles */
#site-navigation {
    display: flex;
    align-items: center;
}

#site-navigation .nav-menu,
#site-navigation ul {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    list-style: none !important;
    margin: 0;
    padding: 0;
}

#site-navigation li {
    list-style: none !important;
    position: relative;
}

#site-navigation a,
#site-navigation a:visited {
    text-decoration: none !important;
}

/* Nav links */
.nav-link {
    display: flex;
    align-items: center;
    gap: 0.2rem;
    padding: 0.5rem 0.75rem;
    font-size: 0.95rem;
    font-weight: 500;
    color: #374151;
    text-decoration: none !important;
    border-radius: 6px;
    transition: color 0.2s ease, background 0.2s ease;
    white-space: nowrap;
}

.nav-link:hover {
    color: var(--primary-color);
    background: #F0F4FF;
    text-decoration: none !important;
}

.nav-link.active {
    color: var(--primary-color);
    font-weight: 600;
}

/* Dropdown */
.dropdown { position: relative; }

.dropdown-menu {
    position: absolute;
    top: calc(100% + 6px);
    left: 50%;
    transform: translateX(-50%) translateY(6px);
    background: #fff;
    min-width: 180px;
    width: max-content;
    box-shadow: 0 4px 24px rgba(0,0,0,0.10), 0 1px 4px rgba(0,0,0,0.06);
    border-radius: 10px;
    border: 1px solid #E8ECF4;
    padding: 0.4rem;
    list-style: none !important;
    margin: 0;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.18s ease, transform 0.18s ease, visibility 0.18s ease;
    z-index: 1001;
    display: flex;
    flex-direction: column;
    gap: 2px;
}

/* Mũi tên nhỏ phía trên dropdown */
.dropdown-menu::before {
    content: '';
    position: absolute;
    top: -6px;
    left: 50%;
    transform: translateX(-50%);
    border-left: 6px solid transparent;
    border-right: 6px solid transparent;
    border-bottom: 6px solid #fff;
    filter: drop-shadow(0 -1px 0 #E8ECF4);
}

.dropdown:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}

.dropdown-item {
    display: flex;
    align-items: center;
    width: 100%;
    padding: 0.55rem 1rem;
    font-size: 0.9rem;
    font-weight: 500;
    color: #374151;
    text-decoration: none !important;
    border-radius: 7px;
    transition: background 0.15s ease, color 0.15s ease;
    white-space: nowrap;
    box-sizing: border-box;
}

.dropdown-item:hover {
    background: transparent;
    color: var(--primary-color);
    text-decoration: none !important;
}

/* Header actions */
.header-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
    flex-shrink: 0;
}

/* CTA button — override TT25 global a styles */
#site-header .header-actions a.btn-primary,
#site-header .header-actions .btn-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.6rem 1.4rem;
    background: #185ADB;
    color: #ffffff !important;
    font-family: 'Mulish', sans-serif;
    font-size: 0.95rem;
    font-weight: 600;
    border-radius: 8px;
    border: none;
    text-decoration: none !important;
    white-space: nowrap;
    cursor: pointer;
    transition: background 0.2s ease, box-shadow 0.2s ease, transform 0.15s ease;
    box-shadow: 0 2px 8px rgba(24, 90, 219, 0.25);
}

#site-header .header-actions a.btn-primary:hover,
#site-header .header-actions .btn-primary:hover {
    background: #144CB3;
    box-shadow: 0 4px 14px rgba(24, 90, 219, 0.35);
    transform: translateY(-1px);
    text-decoration: none !important;
    color: #ffffff !important;
}

/* Mobile toggle */
.menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: #374151;
    padding: 0.25rem;
    line-height: 1;
}

/* Footer */
.site-footer {
    background-color: #fff;
    border-top: 1px solid var(--border-color);
    font-family: 'Mulish', sans-serif;
}

.footer-main {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 3rem;
    padding: 3.5rem 0 3rem;
}

/* Cột công ty */
.footer-logo {
    display: inline-block;
    margin-bottom: 1.5rem;
}

.footer-info {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
}

.footer-info li {
    font-size: 0.95rem;
    color: #374151;
    line-height: 1.5;
}

.footer-info strong {
    color: #111827;
    font-weight: 700;
    margin-right: 0.35rem;
}

.footer-info a {
    color: #374151;
    text-decoration: none;
    transition: color var(--transition-fast);
}

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

/* Tiêu đề cột */
.footer-col-title {
    font-size: 0.95rem;
    font-weight: 700;
    color: #111827;
    margin-bottom: 1.25rem;
    text-transform: none;
    letter-spacing: 0;
}

/* Menu links */
.footer-links {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.footer-links a {
    font-size: 0.95rem;
    color: #374151;
    text-decoration: none;
    transition: color var(--transition-fast);
}

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

/* Social icons */
.footer-socials {
    display: flex;
    gap: 0.75rem;
    align-items: center;
}

.social-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 38px;
    border-radius: 6px;
    background: #F3F4F6;
    color: #111827;
    transition: background var(--transition-fast), color var(--transition-fast);
    text-decoration: none;
}

.social-icon:hover {
    background: var(--primary-color);
    color: #fff;
}

/* Footer bottom */
.footer-bottom {
    border-top: 1px solid var(--border-color);
    background: #F8F9FF;
    padding: 1rem 0;
    text-align: center;
}

.footer-bottom p {
    font-size: 0.9rem;
    color: #6B7280;
    margin: 0;
}

.footer-bottom a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
}

.footer-bottom a:hover {
    text-decoration: underline;
}

/* Shared Layout Utilities */
.split-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.split-layout.reversed {
    direction: rtl;
}

.split-layout.reversed .content, 
.split-layout.reversed .image-box {
    direction: ltr;
}

/* Responsive */
@media (max-width: 992px) {
    /* Dùng cùng specificity với phần desktop để override đúng */
    #site-navigation .nav-menu,
    #site-navigation ul.nav-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background: #fff;
        flex-direction: column;
        gap: 0;
        padding: 0.5rem 0;
        box-shadow: 0 8px 20px rgba(0,0,0,0.08);
        border-top: 1px solid #E2E8F0;
    }

    #site-navigation .nav-menu.active,
    #site-navigation ul.nav-menu.active {
        display: flex;
    }

    /* Dropdown trên mobile */
    #site-navigation .dropdown-menu {
        position: static;
        box-shadow: none;
        opacity: 1;
        visibility: visible;
        transform: none;
        display: none;
        flex-direction: column;
        gap: 0;
        padding: 0;
        background: #f8fafc;
        border-radius: 0;
        min-width: unset;
        width: 100%;
        border-top: 1px solid #E2E8F0;
        border-bottom: 1px solid #E2E8F0;
    }

    #site-navigation .dropdown-menu::before {
        display: none;
    }

    #site-navigation .dropdown.open > .dropdown-menu {
        display: flex;
    }

    #site-navigation .dropdown-item {
        text-align: center;
        justify-content: center;
        padding: 0.75rem 1.5rem;
        border-radius: 0;
        font-size: 0.95rem;
        color: #374151;
        border-bottom: 1px solid #E2E8F0;
        width: 100%;
        box-sizing: border-box;
    }

    #site-navigation .dropdown-item:last-child {
        border-bottom: none;
    }

    #site-navigation .dropdown-item:hover {
        background: #EEF2FF;
        color: var(--primary-color);
    }

    #site-navigation .nav-menu li {
        text-align: center;
        padding: 0;
        width: 100%;
    }

    #site-navigation .nav-link {
        padding: 0.75rem 1.5rem;
        justify-content: center;
        border-radius: 0;
        width: 100%;
        border-bottom: 1px solid #E2E8F0;
    }

    #site-navigation .nav-menu > li:last-child > .nav-link {
        border-bottom: none;
    }

    /* Ẩn nav desktop và CTA button, chỉ giữ hamburger */
    #site-navigation {
        position: static;
    }

    #site-header .header-actions .btn-primary,
    #site-header .header-actions a.btn-primary {
        display: none !important;
    }

    .menu-toggle {
        display: flex;
        align-items: center;
        justify-content: center;
        width: 44px;
        height: 44px;
        font-size: 1.8rem;
        color: #374151;
        background: none;
        border: none;
        cursor: pointer;
        padding: 0;
        flex-shrink: 0;
    }

    /* Header container: hamburger trái, logo giữa, placeholder phải */
    .header-container {
        padding: 0.75rem 0;
        position: relative;
        justify-content: center;
    }

    .header-container .logo {
        position: absolute;
        left: 50%;
        transform: translateX(-50%);
    }

    .header-container #site-navigation {
        order: -1;
    }

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

    .footer-main {
        grid-template-columns: 1fr 1fr;
        gap: 2rem;
    }

    .split-layout {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 2rem;
    }
    
    .split-layout.reversed {
        direction: ltr;
    }
}

@media (max-width: 576px) {
    .footer-main {
        grid-template-columns: 1fr;
        padding-left: 1.25rem;
        padding-right: 1.25rem;
    }
    .header-actions .btn {
        display: none;
    }
}