/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--header-height);
    background-color: var(--color-white);
    z-index: 1000;
    transition: height var(--transition-base), box-shadow var(--transition-base);
}

.header--scrolled {
    height: var(--header-height-scrolled);
    box-shadow: var(--shadow-sm);
}

.header__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
    gap: var(--spacing-md);
}

.header__logo {
    display: flex;
    align-items: center;
    flex-shrink: 0;
    z-index: 1001;
}

.header__logo-img {
    display: block;
    height: 44px;
    width: auto;
    transition: height var(--transition-base);
}

.header--scrolled .header__logo-img {
    height: 36px;
}

.header__toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 5px;
    width: 44px;
    height: 44px;
    margin-right: -0.5rem;
    z-index: 1002;
    cursor: pointer;
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
}

.header__toggle-bar {
    display: block;
    width: 100%;
    height: 2px;
    background-color: var(--color-black);
    transition: transform var(--transition-base), opacity var(--transition-base);
}

.header__toggle--active .header__toggle-bar:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.header__toggle--active .header__toggle-bar:nth-child(2) { opacity: 0; }
.header__toggle--active .header__toggle-bar:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.header__nav {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
}

.header__menu {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.header__item { list-style: none; }

.header__dropdown-head {
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.header__dropdown-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    flex-shrink: 0;
    color: var(--color-black);
    border-radius: var(--radius-sm);
    transition: background-color var(--transition-base), transform var(--transition-base);
}

.header__dropdown-toggle:hover {
    background-color: var(--color-gray-light);
}

.header__dropdown-chevron {
    display: block;
    width: 8px;
    height: 8px;
    border-right: 1.5px solid currentColor;
    border-bottom: 1.5px solid currentColor;
    transform: rotate(45deg) translateY(-2px);
    transition: transform var(--transition-base);
}

.header__item--open .header__dropdown-chevron {
    transform: rotate(-135deg) translateY(-2px);
}

.header__submenu {
    list-style: none;
    margin: 0;
    padding: 0;
}

.header__sublink {
    display: block;
    font-size: var(--fs-xs);
    font-weight: 500;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    color: var(--color-gray-text);
    padding: 0.5rem 0;
    transition: color var(--transition-base);
}

.header__sublink:hover,
.header__sublink--active {
    color: var(--color-black);
}

.header__sublink--active {
    color: var(--color-brand-orange);
}

.header__item--current > .header__dropdown-head .header__link {
    color: var(--color-black);
}

.header__item--current > .header__dropdown-head .header__link::after {
    width: 100%;
}

@media (min-width: 901px) {
    .header__item--dropdown {
        position: relative;
    }

    .header__dropdown-toggle {
        display: none;
    }

    .header__submenu {
        position: absolute;
        top: calc(100% + 0.75rem);
        left: 50%;
        transform: translateX(-50%) translateY(6px);
        min-width: 220px;
        padding: var(--spacing-sm);
        background: var(--color-white);
        border: 1px solid var(--color-gray-medium);
        border-radius: var(--radius-md);
        box-shadow: var(--shadow-md);
        opacity: 0;
        visibility: hidden;
        pointer-events: none;
        transition: opacity var(--transition-base), transform var(--transition-base), visibility var(--transition-base);
        z-index: 1003;
    }

    .header__item--dropdown::before {
        content: '';
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        height: 0.75rem;
    }

    .header__item--dropdown:hover .header__submenu,
    .header__item--dropdown:focus-within .header__submenu,
    .header__item--dropdown.header__item--open .header__submenu {
        opacity: 1;
        visibility: visible;
        pointer-events: auto;
        transform: translateX(-50%) translateY(0);
    }

    .header__sublink {
        padding: 0.625rem 0.75rem;
        border-radius: var(--radius-sm);
    }

    .header__sublink:hover {
        background: var(--color-gray-light);
    }
}

.header__link {
    font-size: var(--fs-xs);
    font-weight: 500;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    color: var(--color-black);
    position: relative;
    padding: 0.25rem 0;
    white-space: nowrap;
}

.header__link::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 1px;
    background-color: var(--color-brand-orange);
    transition: width var(--transition-base);
}

.header__link:hover::after,
.header__link--active::after { width: 100%; }

.header__link--active { color: var(--color-black); }

.header__cta { font-size: var(--fs-xs); padding: 0.625rem 1.25rem; }

.header__cta--active {
    background-color: transparent;
    color: var(--color-black);
    border-color: var(--color-black);
}

.header__overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.4);
    z-index: 999;
    opacity: 0;
    transition: opacity var(--transition-base);
}

.header__overlay--visible { display: block; opacity: 1; }

/* Notebook — 6 itens + CTA */
@media (max-width: 1200px) {
    .header__nav { gap: var(--spacing-md); }
    .header__menu { gap: 0.625rem; }
    .header__link { font-size: 0.6875rem; letter-spacing: 0.03em; }
    .header__cta { padding: 0.5rem 1rem; font-size: 0.6875rem; }
}

@media (max-width: 900px) {
    .header__toggle { display: flex; }
    .header__nav {
        position: fixed;
        top: 0;
        right: -100%;
        width: min(300px, 85vw);
        height: 100dvh;
        flex-direction: column;
        align-items: flex-start;
        padding: calc(var(--header-height) + var(--spacing-lg)) var(--spacing-lg) var(--spacing-lg);
        background: var(--color-white);
        box-shadow: var(--shadow-lg);
        transition: right var(--transition-base);
        overflow-y: auto;
        z-index: 1001;
    }
    .header__nav--open { right: 0; }
    .header__menu { flex-direction: column; align-items: flex-start; width: 100%; }
    .header__item { width: 100%; }
    .header__item--dropdown { border-bottom: 1px solid var(--color-gray-medium); padding-bottom: var(--spacing-xs); }
    .header__dropdown-head { width: 100%; justify-content: space-between; }
    .header__link { font-size: var(--fs-sm); padding: var(--spacing-sm) 0; width: auto; flex: 1; }
    .header__submenu {
        display: none;
        width: 100%;
        padding: 0 0 var(--spacing-xs) var(--spacing-sm);
    }
    .header__item--open .header__submenu { display: block; }
    .header__sublink { font-size: var(--fs-sm); padding: 0.625rem 0; }
    .header__cta { width: 100%; text-align: center; margin-top: var(--spacing-sm); }
}