/* ═══════════════════════════════════════════
   HEADER STYLES
   ═══════════════════════════════════════════ */

.tds-header {
    background: var(--tds-surface);
    border-bottom: 1px solid var(--tds-border);
    position: sticky; top: 0; z-index: 1000;
}
.tds-header__inner {
    max-width: min(1500px, 100%);
    margin: 0 auto;
    padding: 0 clamp(28px, 4vw, 64px);
    display: flex;
    align-items: center;
    gap: var(--tds-space-md);
    height: 68px;
}

/* Logo */
.tds-header__logo {
    display: flex; align-items: center; gap: var(--tds-space-sm);
    text-decoration: none; color: var(--tds-text); flex: 0 1 360px;
    min-width: 250px;
}
.tds-header__logo-img { height: 40px; width: auto; display: block; }
.tds-header__logo-icon-img { height: 30px; width: auto; display: block; }
.tds-header__logo-text { display: flex; flex-direction: column; line-height: 1.2; }
.tds-header__logo-text strong { font-size: 0.96rem; color: #173b8f; }
.tds-header__logo-text small { font-size: 0.65rem; color: var(--tds-text-muted); }

/* Nav */
.tds-header__nav { display: flex; align-items: center; gap: 1px; margin-left: 16px; min-width: 0; }
.tds-header__link {
    display: flex; align-items: center; gap: 4px;
    padding: 9px 8px; border-radius: 8px;
    font-size: 0.8rem; font-weight: 650; color: #172033;
    background: none; border: none; cursor: pointer; font-family: var(--tds-font);
    transition: all var(--tds-transition); text-decoration: none; white-space: nowrap;
}
.tds-header__link:hover { background: #eff6ff; color: #1d4ed8; }
.tds-header__link svg { flex-shrink: 0; }

/* Dropdown */
.tds-header__dropdown { position: relative; }
.tds-header__dropdown-panel {
    display: none;
    position: absolute;
    top: calc(100% + 10px);
    left: 50%;
    transform: translateX(-50%);
    min-width: 320px;
    background: #fff;
    border: 1px solid #d8e1ef;
    border-radius: 12px;
    box-shadow: 0 18px 48px rgba(15, 23, 42, 0.12);
    padding: 24px 30px 26px;
    z-index: 100;
    animation: fadeIn 0.15s ease;
}
.tds-header__dropdown-panel::before {
    content: "";
    position: absolute;
    top: -11px;
    left: 0;
    right: 0;
    height: 12px;
}
.tds-header__dropdown:hover .tds-header__dropdown-panel,
.tds-header__dropdown.open .tds-header__dropdown-panel { display: block; }
.tds-header__dropdown--wide .tds-header__dropdown-panel {
    position: fixed;
    top: 72px;
    left: 50%;
    right: auto;
    transform: translateX(-50%);
    width: min(1180px, calc(100vw - 40px));
    max-height: calc(100vh - 96px);
    overflow-y: auto;
}

.tds-header__mega {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 34px;
}
.tds-header__mega--four {
    grid-template-columns: repeat(4, minmax(0, 1fr));
}
.tds-header__mega--knowledge {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    row-gap: 28px;
}
.tds-header__mega-col {
    min-width: 0;
    padding: 0;
}
.tds-header__mega-col h3 {
    margin: 0 0 12px;
    padding: 0 0 9px;
    border-bottom: 1px solid #b9cdf7;
    color: #2353d1;
    font-size: 0.7rem;
    font-weight: 800;
    letter-spacing: 0.075em;
    text-transform: uppercase;
}
.tds-header__mega-col a {
    display: block;
    min-height: 0;
    padding: 7px 0;
    border-radius: 0;
    color: #334155;
    font-size: 0.84rem;
    font-weight: 600;
    line-height: 1.35;
    text-decoration: none;
}
.tds-header__mega-col a:hover,
.tds-header__mega-col a:focus {
    background: transparent;
    color: #2353d1;
    outline: none;
}
.tds-header__mega-col a span {
    display: none;
}
.tds-header__dropdown:not(.tds-header__dropdown--knowledge) .tds-header__mega-col a {
    color: #293548;
    font-size: 0.85rem;
    font-weight: 650;
}
.tds-header__dropdown:not(.tds-header__dropdown--knowledge) .tds-header__mega-col a span {
    display: none;
}
.tds-header__dropdown:not(.tds-header__dropdown--knowledge) .tds-header__mega-col a:hover {
    color: #2353d1;
}

.tds-header__dropdown-grid {
    display: grid; grid-template-columns: 1fr 1fr; gap: 4px;
    min-width: 500px;
}
.tds-header__dropdown-item {
    display: flex; align-items: flex-start; gap: var(--tds-space-sm);
    padding: 10px 12px; border-radius: var(--tds-radius-sm);
    text-decoration: none; color: var(--tds-text); transition: all var(--tds-transition);
}
.tds-header__dropdown-item:hover { background: var(--tds-primary-50); }
.tds-header__dropdown-item strong { display: block; font-size: 0.88rem; }
.tds-header__dropdown-item small { font-size: 0.75rem; color: var(--tds-text-muted); line-height: 1.3; }
.tds-header__dropdown-icon { font-size: 1.2rem; line-height: 1; margin-top: 2px; }

.tds-header__dropdown-list { display: flex; flex-direction: column; gap: 2px; }
.tds-header__dropdown-link {
    display: flex; align-items: center; gap: var(--tds-space-sm);
    padding: 8px 12px; border-radius: var(--tds-radius-sm);
    font-size: 0.88rem; color: var(--tds-text); text-decoration: none;
}
.tds-header__dropdown-link:hover { background: var(--tds-primary-50); color: var(--tds-primary-light); }

.tds-header__dropdown-countries {
    display: flex; flex-wrap: wrap; gap: var(--tds-space-sm);
    min-width: 400px;
}
.tds-header__country-chip {
    display: flex; align-items: center; gap: 6px;
    padding: 8px 14px; border: 1px solid var(--tds-border); border-radius: var(--tds-radius-full);
    font-size: 0.85rem; color: var(--tds-text); text-decoration: none;
}
.tds-header__country-chip:hover { border-color: var(--tds-primary-light); background: var(--tds-primary-50); }
.tds-header__country-chip--all { background: var(--tds-primary-50); border-color: var(--tds-primary-200); }

/* Actions */
.tds-header__actions { display: flex; align-items: center; gap: 10px; margin-left: 10px; }
.tds-header__lang {
    background: none; border: none; font-size: 0.88rem; cursor: pointer;
    color: var(--tds-text-secondary); font-family: var(--tds-font);
}
.tds-header__cta {
    padding: 8px 16px; background: #173b8f; color: white;
    border-radius: var(--tds-radius-md); font-size: 0.88rem; font-weight: 600;
    text-decoration: none; transition: all var(--tds-transition);
}
.tds-header__cta:hover { background: #2353d1; color: white; }

/* Mobile toggle */
.tds-header__toggle {
    display: none; flex-direction: column; gap: 5px; padding: 8px;
    background: none; border: none; cursor: pointer;
}
.tds-header__toggle span { display: block; width: 22px; height: 2px; background: var(--tds-text); transition: var(--tds-transition); }
.tds-header__toggle.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.tds-header__toggle.active span:nth-child(2) { opacity: 0; }
.tds-header__toggle.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Mobile */
@media (max-width: 1024px) {
    .tds-header__nav, .tds-header__actions { display: none; }
    .tds-header__nav.open {
        display: flex; flex-direction: column; align-items: stretch;
        position: absolute; top: 68px; left: 0; right: 0;
        background: var(--tds-surface); border-bottom: 1px solid var(--tds-border);
        padding: var(--tds-space-md); box-shadow: var(--tds-shadow-lg);
        max-height: 80vh; overflow-y: auto;
    }
    .tds-header__nav.open + .tds-header__actions { display: flex; }
    .tds-header__toggle { display: flex; margin-left: auto; }
    .tds-header__dropdown-panel {
        position: static;
        transform: none !important;
        width: 100% !important;
        min-width: 0;
        box-shadow: none;
        border: none;
        border-radius: 0;
        padding: 0 0 0 var(--tds-space-md);
    }
    .tds-header__dropdown-panel::before { display: none; }
    .tds-header__mega,
    .tds-header__mega--four,
    .tds-header__dropdown-grid,
    .tds-header__dropdown-countries {
        min-width: auto;
        grid-template-columns: 1fr;
    }
    .tds-header__mega-col { padding: 8px 0; }
    .tds-header__mega-col a { min-height: 0; }
}

@media (max-width: 1280px) and (min-width: 1025px) {
    .tds-header__logo-text small { display: none; }
    .tds-header__logo-text strong { font-size: 0.9rem; }
    .tds-header__link { padding-inline: 7px; font-size: 0.76rem; }
    .tds-header__cta { padding-inline: 12px; font-size: 0.82rem; }
    .tds-header__dropdown--wide .tds-header__dropdown-panel {
        width: min(980px, calc(100vw - 32px));
    }
}

@media (max-width: 1400px) and (min-width: 1025px) {
    .tds-header__logo-text small { display: none; }
    .tds-header__logo { flex-basis: 300px; min-width: 220px; }
    .tds-header__inner { gap: 10px; }
    .tds-header__actions { margin-left: 6px; gap: 8px; }
}