/* ==========================================================================
   Piros Ász — header.css
   Sticky nav, solid dark style, hamburger, mobile menu, scroll state.
   ========================================================================== */

.pa-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    height: var(--header-h);
    background-color: var(--c-bg);
    border-bottom: 1px solid var(--c-border);
    transition: box-shadow var(--dur) var(--ease);
}

.pa-header.is-scrolled {
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.4);
}

.pa-header__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
    max-width: var(--max-w);
    margin: 0 auto;
    padding: 0 var(--s-16);
}

/* Logo */
.pa-header__logo {
    display: flex;
    align-items: center;
    gap: var(--s-8);
    text-decoration: none;
    flex-shrink: 0;
}

.pa-header__logo img {
    height: 36px;
    width: auto;
}

.pa-header__logo-text {
    font-family: var(--f-heading);
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--c-white);
}

/* Desktop nav */
.pa-nav {
    display: none;
    align-items: center;
    gap: var(--s-4);
}

.pa-nav__link {
    position: relative;
    display: flex;
    align-items: center;
    height: var(--header-h);
    padding: 0 var(--s-12);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--c-text);
    text-decoration: none;
    letter-spacing: 0.3px;
    transition: color var(--dur) var(--ease);
}

.pa-nav__link:hover {
    color: var(--c-white);
}

.pa-nav__link.is-active {
    color: var(--c-white);
}

.pa-nav__link.is-active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: var(--s-12);
    right: var(--s-12);
    height: 2px;
    background-color: var(--c-accent);
}

.pa-nav__link--cta {
    height: auto;
    margin-left: var(--s-8);
    padding: 8px 16px;
    background-color: var(--c-accent);
    color: var(--c-white);
    border-radius: var(--r-sm);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    font-size: 0.8125rem;
}

.pa-nav__link--cta:hover {
    background-color: var(--c-accent-hover);
    color: var(--c-white);
}

.pa-nav__link--cta::after {
    display: none;
}

/* Hamburger */
.pa-hamburger {
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 28px;
    height: 28px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0;
    z-index: 1001;
}

.pa-hamburger__line {
    display: block;
    width: 100%;
    height: 2px;
    background-color: var(--c-text);
    border-radius: 2px;
    transition: transform var(--dur) var(--ease), opacity var(--dur) var(--ease);
}

.pa-hamburger.is-active .pa-hamburger__line:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.pa-hamburger.is-active .pa-hamburger__line:nth-child(2) {
    opacity: 0;
}

.pa-hamburger.is-active .pa-hamburger__line:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* Mobile menu */
.pa-mobile-menu {
    position: fixed;
    top: var(--header-h);
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--c-bg);
    border-top: 1px solid var(--c-border);
    padding: var(--s-32) var(--s-16);
    display: flex;
    flex-direction: column;
    gap: var(--s-4);
    overflow-y: auto;
    transform: translateX(100%);
    transition: transform var(--dur) var(--ease);
    z-index: 999;
}

.pa-mobile-menu.is-open {
    transform: translateX(0);
}

.pa-mobile-menu__link {
    display: block;
    padding: var(--s-12) var(--s-16);
    font-size: 1.0625rem;
    font-weight: 500;
    color: var(--c-text);
    text-decoration: none;
    border-radius: var(--r-sm);
    transition: background-color var(--dur) var(--ease), color var(--dur) var(--ease);
}

.pa-mobile-menu__link:hover,
.pa-mobile-menu__link.is-active {
    background-color: var(--c-surface);
    color: var(--c-white);
}

.pa-mobile-menu__link--cta {
    margin-top: var(--s-16);
    text-align: center;
    background-color: var(--c-accent);
    color: var(--c-white);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    font-size: 0.875rem;
}

.pa-mobile-menu__link--cta:hover {
    background-color: var(--c-accent-hover);
    color: var(--c-white);
}

.pa-mobile-menu__divider {
    border: none;
    border-top: 1px solid var(--c-border);
    margin: var(--s-12) 0;
}

/* Header spacer */
.pa-header-spacer {
    height: var(--header-h);
}