*,
*::before,
*::after {
box-sizing: border-box;
}


/* Layout */
body {
    margin: 0;
    -webkit-font-smoothing: antialiased;
    color: var(--text);
    font-family: var(--font-used);
    font-weight: 400;
    background: var(--white);
}

.container {
    width: 100%;
    max-width: 1300px;

    margin-right: auto;
    margin-bottom: 0;
    margin-left: auto;

    padding-right: 1.6rem;
    padding-left: 1.6rem;

}




/* Navigation ========================*/
.nav {
    position: sticky;
    top: 0;
    z-index: 40;
    backdrop-filter: blur(40px);
    background: var(--nav-color);
    border-bottom: 5px solid var(--main_primary);

}

.nav-inside {  /* Logo */
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 5rem;
}

.logo {
    font-weight: 700;  
    font-size: 0.95rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--white);
}

.logo img {
    height: 50px;
    width: auto;
    display: block;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 1.75rem;
}

.nav-links a {
    font-size: 1rem;
    color: var(--white);
    font-weight: 500;
    text-decoration: none;
    transition: color 0.18s ease, opacity 0.18s ease;    
}

.nav-links a:not(.nav-cicle):not(.dd-item):hover {
    color: var(--main_primary);
    text-decoration-style: solid;   
    text-decoration: underline;
    text-decoration-color: var(--main_primary);
    text-underline-offset: 0.5rem;
    opacity: 1;
    text-decoration-thickness: 3px;
    box-shadow: var(--shadow-hover);   
}

.nav-cicle {
    padding-bottom: 0.75rem;    
    padding-right: 1rem;
    border-radius: 15px;
    padding-left: 1rem;
    padding-top: 0.7rem;
    border: 2px solid var(--main_primary);
    transition: transform 0.3s ease-out;   

}

.nav-cicle:hover {
    color: var(--white);
    box-shadow: var(--shadow-hover);
    background-color: var(--main_primary);
    transform: scale(1.05);     
}

.nav-wrapper {
    height: 50px;       
    display: flex;       
    align-items: stretch;
}

.nav-line-verti {
    border-left: 2px solid var(--white);
    height: 100%;

}

/* Burger ======================= */ 
.burger-menu{
    gap: 1rem;
    display: none;
    cursor: pointer;
    color: var(--white);
}

.nav-burger-selector{
    display: none; 
}


/* ====== Dropdown (Lösungen) ====== */
.dd-checkbox {
    display: none;
}

.nav-dropdown {
    position: relative;
    display: flex;
    align-items: center;
}

.nav-dropdown-trigger {
    font-size: 1rem;
    color: var(--white);
    font-weight: 500;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.4rem;
    transition: color 0.18s ease;
    user-select: none;
}

.nav-dropdown-trigger:hover {
    color: var(--main_primary);
}

/* Arrow indicators */
.dd-arrow {
    display: inline-block;
    width: 0;
    height: 0;
    border-left: 4px solid transparent;
    border-right: 4px solid transparent;
    border-top: 5px solid currentColor;
    transition: transform 0.2s ease;
    margin-top: 1px;
}

.dd-arrow-right {
    border-top: 4px solid transparent;
    border-bottom: 4px solid transparent;
    border-left: 5px solid currentColor;
    border-right: 0;
    margin-top: 0;
    margin-left: auto;
}

/* Main dropdown panel */
.nav-dropdown-menu {
    position: absolute;
    top: calc(100% + 14px);
    left: 50%;
    transform: translateX(-50%) translateY(6px);
    min-width: 220px;
    background: var(--background-primary);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    padding: 8px 0;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.2s ease, transform 0.2s ease, visibility 0.2s ease;
    box-shadow: 0 16px 48px rgba(0, 0, 0, 0.35);
    z-index: 200;
}

/* Invisible bridge between trigger and dropdown to prevent mouseout gap */
.nav-dropdown-menu::before {
    content: "";
    position: absolute;
    top: -18px;
    left: 0;
    right: 0;
    height: 18px;
}

/* Desktop: hover to open */
.nav-dropdown:hover > .nav-dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}

.nav-dropdown:hover > .nav-dropdown-trigger .dd-arrow {
    transform: rotate(180deg);
}

/* Dropdown items */
.dd-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 10px 16px;
    font-size: 1rem;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.85);
    cursor: pointer;
    transition: background 0.15s ease, color 0.15s ease;
    white-space: nowrap;
    border-radius: 0;
}

.dd-item:hover {
    background: rgba(239, 181, 9, 0.12);
    color: var(--main_primary);
}

/* Sub-dropdown (Integrationen) */
.nav-dropdown-sub {
    position: relative;
}

.dd-sub-trigger {
    justify-content: space-between;
}

.nav-dropdown-sub-menu {
    position: absolute;
    left: calc(100% + 4px);
    top: -8px;
    min-width: 200px;
    background: var(--background-primary);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    padding: 8px 0;
    opacity: 0;
    visibility: hidden;
    transform: translateX(6px);
    transition: opacity 0.2s ease, transform 0.2s ease, visibility 0.2s ease;
    box-shadow: 0 16px 48px rgba(0, 0, 0, 0.35);
    z-index: 201;
}

/* Invisible bridge between main and sub dropdown */
.nav-dropdown-sub-menu::before {
    content: "";
    position: absolute;
    top: 0;
    bottom: 0;
    left: -8px;
    width: 8px;
}

/* Desktop: hover to open sub */
.nav-dropdown-sub:hover > .nav-dropdown-sub-menu {
    opacity: 1;
    visibility: visible;
    transform: translateX(0);
}


/* Responsive  ============================*/
@media (max-width: 1136px) {   /*Tablet */ 


}

@media (max-width: 785px) {  /*Smartphone */

    html, body {
        margin: 0;
        padding: 0;
        overflow-x: hidden;
    }

    .nav {
        top: 0;
        z-index: 1000;
        padding-right: 1rem;
        padding-left: 1rem;
    }

    .container {
        padding-left: 0rem;
        padding-right: 0rem;
    }

    .burger-menu {
        display: block;
    }

    .nav-burger-selector:checked ~ .nav-links {
        display: flex;
    }

    .nav-inside {
        display: flex;
        align-items: left;
        justify-content: space-between;
        height: 5rem;
    }

    .logo a img {
        max-width: 90%;
    }

    .nav-links {
        display: none;
        position: absolute;
        padding-top: 2rem;
        padding-bottom: 2rem;
        top: 4rem;
        right: 0;
        color: var(--text);
        flex-direction: column;
        left: 0;
        background: var(--background-primary);
    }

    /* ====== Mobile Dropdown ====== */
    .nav-dropdown {
        flex-direction: column;
        align-items: center;
        width: 100%;
    }

    .nav-dropdown-trigger {
        padding: 0.5rem 1.75rem;
        justify-content: flex-start;
    }

    /* Reset desktop hover on mobile */
    .nav-dropdown:hover > .nav-dropdown-menu {
        opacity: 0;
        visibility: hidden;
    }

    .nav-dropdown-sub:hover > .nav-dropdown-sub-menu {
        opacity: 0;
        visibility: hidden;
    }

    /* Mobile: checkbox controls visibility */
    #dd-loesungen:checked ~ .nav-dropdown-menu {
        opacity: 1;
        visibility: visible;
        max-height: 600px;
        transform: none;
    }

    #dd-loesungen:checked ~ .nav-dropdown-trigger .dd-arrow {
        transform: rotate(180deg);
    }

    #dd-integrationen:checked ~ .nav-dropdown-sub-menu {
        opacity: 1;
        visibility: visible;
        max-height: 300px;
        transform: none;
    }

    #dd-integrationen:checked ~ .dd-sub-trigger .dd-arrow-right {
        transform: rotate(90deg);
    }

    .nav-dropdown-menu {
        position: static;
        transform: none;
        min-width: 0;
        width: 100%;
        border: none;
        border-radius: 0;
        box-shadow: none;
        background: rgba(255, 255, 255, 0.05);
        padding: 4px 0;
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.3s ease, opacity 0.2s ease, visibility 0.2s ease;
    }

    .nav-dropdown-menu::before {
        display: none;
    }

    .dd-item {
        padding: 10px 2.5rem;
        font-size: 0.95rem;
        color: var(--white);
    }

    .nav-dropdown-sub {
        width: 100%;
    }

    .nav-dropdown-sub-menu {
        position: static;
        transform: none;
        min-width: 0;
        width: 100%;
        border: none;
        border-radius: 0;
        box-shadow: none;
        background: rgba(255, 255, 255, 0.04);
        padding: 0;
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.3s ease, opacity 0.2s ease, visibility 0.2s ease;
    }

    .nav-dropdown-sub-menu::before {
        display: none;
    }

    .nav-dropdown-sub-menu .dd-item {
        padding-left: 3.5rem;
    }

    .dd-arrow-right {
        border-top: 4px solid transparent;
        border-bottom: 4px solid transparent;
        border-left: 5px solid currentColor;
        border-right: 0;
        transition: transform 0.2s ease;
    }
}