/* ========================================
   HEADER SECTION
   ======================================== */

header {
    background-color: var(--color-white);
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 50;
    border-bottom: 1px solid transparent;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

header.scrolled {
    border-color: var(--color-gray-200);
    box-shadow: 0 0.2rem 2rem rgba(0, 0, 0, 0.08);
}

header .header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 1rem;
    padding-bottom: 1rem;
}

/* Logo */
.header-logo {
    width: 9.5rem;
    height: 2.9rem;
}

.header-logo svg {
    width: 100%;
    height: 100%;
}

/* Navigation + CTA Container */
.header-nav-wrapper {
    display: flex;
    align-items: center;
    gap: 5.7rem;
}

/* Navigation Menu */
.header-nav ul.menu {
    display: flex;
    align-items: center;
    gap: 2.5rem;
}

.header-nav ul.menu > li.menu-item {
    display: flex;
    align-items: center;
    gap: 1.2rem;
    position: relative;
}

.header-nav ul.menu > li.menu-item > a {
    color: var(--color-black);
    transition: color 0.3s ease;
}

.header-nav ul.menu > li.menu-item > a:hover,
.header-nav ul.menu > li.menu-item.current-section > a {
    color: var(--color-primary-green);
}

/* Submenu Arrow */
.header-nav .submenu-arrow {
    transform: rotate(90deg);
    transition: transform 0.3s ease;
}

.header-nav .menu-item-has-children:hover > .submenu-arrow {
    transform: rotate(270deg);
}

/* Submenu (Dropdown) */
.header-nav .sub-menu {
    position: absolute;
    top: 100%;
    left: 0;
    margin-top: 1.5rem;
    min-width: 20rem;
    background-color: var(--color-white);
    border-radius: 0.8rem;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    padding: 1rem 0;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-1rem);
    transition: opacity 0.3s ease, transform 0.3s ease, visibility 0.3s ease;
    z-index: 100;
}

.header-nav .menu-item-has-children:hover > .sub-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.header-nav .sub-menu li.menu-item {
    display: block;
}

.header-nav .sub-menu li.menu-item a {
    display: block;
    padding: 1rem 2rem;
    color: var(--color-black);
    transition: background-color 0.3s ease, color 0.3s ease;
}

.header-nav .sub-menu li.menu-item a:hover {
    background-color: #f5f5f5;
    color: var(--color-primary-green);
}

/* CTA Buttons */
.header-cta {
    display: flex;
    align-items: center;
    gap: 1.7rem;
}

.header-cta-btn {
    padding: 1rem 2rem;
    border-radius: 9999px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1.5rem;
    transition: opacity 0.3s ease;
}

.header-cta-btn:hover {
    opacity: 0.9;
}

.header-cta-btn.btn-green {
    background-color: var(--color-primary-green);
    color: var(--color-white);
}

.header-cta-btn.btn-blue {
    background-color: var(--color-primary-blue);
    color: var(--color-white);
}

/* Ikona strzałki w białym kółku */
.header-cta-btn svg {
    width: 2.6rem;
    height: 2.6rem;
    background-color: var(--color-white);
    border-radius: 50%;
    padding: 0.5rem;
    flex-shrink: 0;
}

.header-cta-btn.btn-green svg path {
    stroke: var(--color-primary-green);
}

.header-cta-btn.btn-blue svg path {
    stroke: var(--color-primary-blue);
}

/* Hamburger Button - hidden on desktop */
.header-hamburger {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 0.5rem;
    width: 3rem;
    height: 3rem;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
    z-index: 60;
}

.header-hamburger span {
    display: block;
    width: 100%;
    height: 0.2rem;
    background-color: var(--color-black);
    transition: transform 0.3s ease, opacity 0.3s ease;
}

.header-hamburger.active span:nth-child(1) {
    transform: rotate(45deg) translate(0.5rem, 0.5rem);
}

.header-hamburger.active span:nth-child(2) {
    opacity: 0;
}

.header-hamburger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(0.5rem, -0.5rem);
}

/* ========================================
   RESPONSIVE - poniżej 1120px
   ======================================== */

@media (max-width: 1120px) {
    .header-nav ul.menu {
        gap: 1.5rem;
    }

    .header-nav-wrapper {
        gap: 3rem;
    }

    .header-cta-btn {
        padding: 0.8rem 1.5rem;
    }
}

/* ========================================
   RESPONSIVE - poniżej 900px
   ======================================== */

@media (max-width: 1250px) {
    .header-hamburger {
        display: flex;
    }

    .header-nav-wrapper {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        max-width: 35rem;
        height: 100vh;
        background-color: var(--color-white);
        flex-direction: column;
        align-items: flex-start;
        justify-content: flex-start;
        padding: 8rem 3rem 3rem;
        gap: 3rem;
        box-shadow: -5px 0 20px rgba(0, 0, 0, 0.1);
        transition: right 0.3s ease;
        z-index: 55;
        overflow-y: auto;
    }

    .header-nav-wrapper.active {
        right: 0;
    }

    .header-nav ul.menu {
        flex-direction: column;
        align-items: flex-start;
        gap: 2rem;
        width: 100%;
    }

    .header-nav ul.menu > li.menu-item {
        width: 100%;
        flex-wrap: wrap;
    }

    /* Submenu w mobile */
    .header-nav .sub-menu {
        position: static;
        margin-top: 1rem;
        margin-left: 2rem;
        box-shadow: none;
        padding: 0;
        min-width: auto;
        width: 100%;
        max-height: 0;
        overflow: hidden;
        opacity: 0;
        visibility: hidden;
        transform: none;
        transition: max-height 0.3s ease, opacity 0.3s ease, visibility 0.3s ease;
    }

    .header-nav .menu-item-has-children.submenu-open > .sub-menu {
        max-height: 50rem;
        opacity: 1;
        visibility: visible;
    }

    .header-nav .sub-menu li.menu-item {
        width: 100%;
    }

    .header-nav .sub-menu li.menu-item a {
        padding: 0.8rem 1rem;
    }

    /* Submenu arrow w mobile - obrót przy otwarciu */
    .header-nav .menu-item-has-children.submenu-open > .submenu-arrow {
        transform: rotate(270deg);
    }

    .header-cta {
        flex-direction: column;
        width: 100%;
    }

    .header-cta-btn {
        width: 100%;
        justify-content: center;
    }
}

/* ========================================
   RESPONSIVE - poniżej 480px
   ======================================== */

@media (max-width: 480px) {
    .header-logo {
        width: 8rem;
        height: auto;
    }
}