/* ==========================================================================
   NK AUTOPARTS - HEADER & HERO SLIDER STYLESHEET
   ========================================================================== */

/* ---------- Header superior (barra topo) ---------- */
.nk-topbar {
    background: var(--nk-bg-dark);
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.8125rem;
    padding: 0.5rem 0;
    position: relative;
    z-index: 100;
}

.nk-topbar__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
}

.nk-topbar__left {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.nk-topbar__item {
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: var(--nk-transition-fast);
}

.nk-topbar__item:hover {
    color: #fff;
}

.nk-topbar__item svg,
.nk-topbar__item i {
    color: var(--nk-accent-light);
}

.nk-topbar__right {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.nk-topbar__social {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.nk-topbar__social a {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.875rem;
    transition: var(--nk-transition-fast);
}

.nk-topbar__social a:hover {
    color: var(--nk-accent-light);
    transform: translateY(-2px);
}

@media (max-width: 768px) {
    .nk-topbar__left .nk-topbar__item--phone { display: none; }
    .nk-topbar__right { display: none; }
}

/* ---------- Header principal ---------- */
.nk-header {
    background: var(--nk-primary);
    position: sticky;
    top: 0;
    z-index: 90;
    transition: box-shadow 0.3s ease;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.nk-header.nk-header--scrolled {
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.35);
}

.nk-header__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 2rem;
    padding: 1rem 0;
}

/* Logo */
.nk-logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    flex-shrink: 0;
}

.nk-logo__mark {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--nk-accent), var(--nk-accent-light));
    border-radius: var(--nk-radius-md);
    color: #fff;
    font-family: var(--nk-font-heading);
    font-weight: 700;
    font-size: 1.25rem;
    letter-spacing: 0.05em;
}

.nk-logo__text {
    display: flex;
    flex-direction: column;
    line-height: 1.1;
}

.nk-logo__text strong {
    font-family: var(--nk-font-heading);
    font-size: 1.375rem;
    font-weight: 700;
    color: #fff;
    letter-spacing: 0.02em;
}

.nk-logo__text span {
    font-size: 0.6875rem;
    color: rgba(255, 255, 255, 0.6);
    letter-spacing: 0.2em;
    text-transform: uppercase;
}

/* Navegação */
.nk-nav {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.nk-nav a {
    position: relative;
    color: rgba(255, 255, 255, 0.85);
    font-family: var(--nk-font-body);
    font-size: 0.9375rem;
    font-weight: 500;
    padding: 0.5rem 0.875rem;
    border-radius: var(--nk-radius-sm);
    transition: var(--nk-transition-fast);
}

.nk-nav a:hover {
    color: #fff;
    background: rgba(255, 255, 255, 0.06);
}

.nk-nav a.nk-nav__current {
    color: var(--nk-accent-light);
}

.nk-nav a.nk-nav__cta {
    background: linear-gradient(135deg, var(--nk-accent), var(--nk-accent-light));
    color: #fff;
    font-weight: 600;
    padding: 0.625rem 1.25rem;
    border-radius: var(--nk-radius-full);
}

.nk-nav a.nk-nav__cta:hover {
    transform: translateY(-2px);
    box-shadow: var(--nk-shadow-accent);
}

/* Ações do header (busca, favoritos, comparação, carrinho) */
.nk-header__actions {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.nk-header__action {
    position: relative;
    width: 42px;
    height: 42px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 50%;
    color: rgba(255, 255, 255, 0.9);
    background: transparent;
    cursor: pointer;
    font-size: 1.125rem;
    transition: var(--nk-transition-fast);
}

.nk-header__action:hover {
    background: var(--nk-accent);
    border-color: var(--nk-accent);
    color: #fff;
}

.nk-header__action--search {
    display: none;
}

.nk-header__badge {
    position: absolute;
    top: -4px;
    right: -4px;
    min-width: 18px;
    height: 18px;
    padding: 0 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--nk-accent-light);
    color: #fff;
    font-size: 0.6875rem;
    font-weight: 700;
    border-radius: var(--nk-radius-full);
    border: 2px solid var(--nk-primary);
}

/* Barra de busca no header */
.nk-header-search {
    background: var(--nk-primary);
    padding: 0 0 1.25rem;
    display: none;
}

.nk-header-search.nk-header-search--open {
    display: block;
    animation: nkSlideDown 0.3s ease;
}

.nk-header-search form {
    display: flex;
    gap: 0.5rem;
    max-width: 720px;
    margin: 0 auto;
}

.nk-header-search input[type="search"] {
    flex: 1;
    padding: 0.875rem 1.25rem;
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--nk-radius-full);
    background: rgba(255, 255, 255, 0.08);
    color: #fff;
    font-family: var(--nk-font-body);
    font-size: 0.9375rem;
}

.nk-header-search input[type="search"]::placeholder {
    color: rgba(255, 255, 255, 0.5);
}

.nk-header-search input[type="search"]:focus {
    outline: none;
    border-color: var(--nk-accent);
}

/* Hamburger */
.nk-hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.nk-hamburger span {
    display: block;
    width: 24px;
    height: 2px;
    background: #fff;
    border-radius: 2px;
    transition: var(--nk-transition);
}

.nk-hamburger.nk-hamburger--open span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

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

.nk-hamburger.nk-hamburger--open span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* Menu mobile */
.nk-mobile-menu {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--nk-primary);
    z-index: 99;
    padding: 6rem 2rem 2rem;
    overflow-y: auto;
}

.nk-mobile-menu.nk-mobile-menu--open {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    animation: nkFadeIn 0.3s ease;
}

.nk-mobile-menu a {
    color: rgba(255, 255, 255, 0.9);
    font-family: var(--nk-font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    padding: 0.75rem 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.nk-mobile-menu a.nk-nav__cta {
    background: linear-gradient(135deg, var(--nk-accent), var(--nk-accent-light));
    color: #fff;
    text-align: center;
    border-radius: var(--nk-radius-md);
    border: none;
    margin-top: 1rem;
}

@media (max-width: 992px) {
    .nk-nav { display: none; }
    .nk-header__action--search { display: flex; }
    .nk-hamburger { display: flex; }
}

@media (max-width: 480px) {
    .nk-logo__text span { display: none; }
    .nk-header__action { width: 38px; height: 38px; }
}

@keyframes nkFadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes nkSlideDown {
    from { opacity: 0; transform: translateY(-10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ==========================================================================
   HERO SLIDER
   ========================================================================== */

.nk-hero {
    position: relative;
    overflow: hidden;
    background: var(--nk-bg-navy);
}

.nk-hero__slides {
    position: relative;
    height: 100%;
}

.nk-hero__slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.8s ease, visibility 0.8s ease;
}

.nk-hero__slide.nk-hero__slide--active {
    opacity: 1;
    visibility: visible;
    position: relative;
}

.nk-hero__slide-inner {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 3rem;
    align-items: center;
    padding: 5rem 0;
    min-height: 560px;
}

.nk-hero__content {
    color: #fff;
}

.nk-hero__eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.8125rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    color: var(--nk-accent-light);
    margin-bottom: 1.25rem;
    padding-bottom: 0.625rem;
    border-bottom: 2px solid var(--nk-accent);
}

.nk-hero__title {
    font-family: var(--nk-font-heading);
    font-size: clamp(2.2rem, 5vw, 3.5rem);
    font-weight: 800;
    color: #fff;
    line-height: 1.1;
    margin-bottom: 1.25rem;
}

.nk-hero__title span {
    color: var(--nk-accent-light);
}

.nk-hero__text {
    font-size: 1.0625rem;
    color: rgba(255, 255, 255, 0.75);
    line-height: 1.7;
    max-width: 520px;
    margin-bottom: 2rem;
}

.nk-hero__buttons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.nk-hero__stats {
    display: flex;
    gap: 2rem;
    margin-top: 2.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.nk-hero__stat strong {
    display: block;
    font-family: var(--nk-font-heading);
    font-size: 1.875rem;
    font-weight: 800;
    color: var(--nk-accent-light);
}

.nk-hero__stat span {
    font-size: 0.8125rem;
    color: rgba(255, 255, 255, 0.6);
}

/* Imagem do slide */
.nk-hero__media {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
}

.nk-hero__media img {
    max-width: 100%;
    border-radius: var(--nk-radius-lg);
    box-shadow: var(--nk-shadow-lg);
    animation: nkFloat 4s ease-in-out infinite;
}

.nk-hero__media-badge {
    position: absolute;
    background: #fff;
    color: var(--nk-primary);
    border-radius: var(--nk-radius-md);
    padding: 1rem 1.25rem;
    box-shadow: var(--nk-shadow-md);
    text-align: center;
}

.nk-hero__media-badge strong {
    display: block;
    font-family: var(--nk-font-heading);
    font-size: 1.5rem;
    font-weight: 800;
}

.nk-hero__media-badge span {
    font-size: 0.75rem;
    color: var(--nk-text-muted);
}

.nk-hero__media-badge--top {
    top: 10%;
    right: 5%;
    animation: nkFloat 3s ease-in-out infinite;
    animation-delay: 1s;
}

.nk-hero__media-badge--bottom {
    bottom: 15%;
    left: 5%;
    animation: nkFloat 3.5s ease-in-out infinite;
    animation-delay: 2s;
}

@keyframes nkFloat {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-12px); }
}

/* Navegação do slider */
.nk-hero__nav {
    position: absolute;
    bottom: 28px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    align-items: center;
    gap: 1rem;
    z-index: 5;
}

.nk-hero__dots {
    display: flex;
    gap: 0.5rem;
    align-items: center;
}

.nk-hero__dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.25);
    border: none;
    cursor: pointer;
    padding: 0;
    transition: var(--nk-transition);
}

.nk-hero__dot.nk-hero__dot--active {
    background: var(--nk-accent-light);
    width: 28px;
    border-radius: var(--nk-radius-full);
}

.nk-hero__arrows {
    display: flex;
    gap: 0.5rem;
}

.nk-hero__arrow {
    width: 42px;
    height: 42px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    background: transparent;
    color: #fff;
    cursor: pointer;
    transition: var(--nk-transition-fast);
}

.nk-hero__arrow:hover {
    background: var(--nk-accent);
    border-color: var(--nk-accent);
    transform: scale(1.05);
}

/* Slide backgrounds (gradientes) */
.nk-hero__slide--1 .nk-hero__slide-inner {
    background: linear-gradient(135deg, var(--nk-primary) 0%, #102536 50%, var(--nk-accent) 100%);
}

.nk-hero__slide--2 .nk-hero__slide-inner {
    background: linear-gradient(135deg, var(--nk-dark) 0%, var(--nk-primary) 60%, var(--nk-accent-dark) 100%);
}

.nk-hero__slide--3 .nk-hero__slide-inner {
    background: linear-gradient(135deg, var(--nk-dark) 0%, var(--nk-primary) 70%, var(--nk-accent-dark) 100%);
}

/* Responsivo hero */
@media (max-width: 992px) {
    .nk-hero__slide-inner {
        grid-template-columns: 1fr;
        gap: 2rem;
        padding: 4rem 0;
        min-height: auto;
        text-align: center;
    }

    .nk-hero__content { order: 1; }
    .nk-hero__media { order: 2; }
    .nk-hero__media img { max-width: 380px; margin: 0 auto; }
    .nk-hero__text { margin-left: auto; margin-right: auto; }
    .nk-hero__buttons { justify-content: center; }
    .nk-hero__stats { justify-content: center; }
    .nk-hero__eyebrow { border-bottom: none; }
}

/* ==========================================================================
   SEÇÃO DE MARCAS (logos)
   ========================================================================== */

.nk-brands {
    background: #fff;
    border-top: 1px solid var(--nk-border);
    border-bottom: 1px solid var(--nk-border);
}

.nk-brands__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 2rem;
    flex-wrap: wrap;
    padding: 1.5rem 0;
}

.nk-brands__item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-family: var(--nk-font-heading);
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--nk-text-muted);
    opacity: 0.7;
    transition: var(--nk-transition);
}

.nk-brands__item:hover {
    opacity: 1;
    color: var(--nk-accent);
}

.nk-brands__item svg,
.nk-brands__item i {
    font-size: 1.5rem;
}