/* =========================================
   HEADER UND STICKYBAR
   MOBILE FIRST
========================================= */

.header-grid {
    position: fixed;
    top: 0;
    right: 0;
    left: 0;
    z-index: 1000;
    width: 100%;
}

body {
    padding-top: var(--sticky-height-mobile);
}

.stickybar {
    position: relative;
    width: 100%;
    background: var(--color-sticky);
    box-shadow: 0 4px 18px rgb(0 25 70 / 15%);
}

.stickybar__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: min(calc(100% - 24px), var(--max-width));
    min-height: var(--sticky-height-mobile);
    margin-inline: auto;
    gap: 1rem;
}

.stickybar__logo {
    display: flex;
    align-items: center;
    flex-shrink: 1;
    min-width: 0;
}

.stickybar__logo:hover {
    text-decoration: none;
}

.stickybar__actions {
    display: flex;
    align-items: center;
    flex: 0 0 auto;
    gap: 1rem;
}

/* =========================================
   BRANDING
========================================= */

.stickybar__crest {
    width: auto;
    height: 68px;
    flex-shrink: 0;
}

.stickybar__brand {
    display: flex;
    flex-direction: column;
    justify-content: center;
    min-width: 0;
    line-height: 1;
}

.stickybar__brand-name {
    color: var(--color-text);
    font-family: var(--font-heading);
    font-size: 2.5rem;
    font-weight: normal;
    line-height: 0.7;
    letter-spacing: 0.08em;
    white-space: nowrap;
}

.stickybar__brand-subtitle {
    margin-top: 0.1rem;
    color: var(--color-bg);
    font-family: var(--font-heading);
    font-size: 0.65rem;
    font-weight: normal;
    line-height: 1;
    letter-spacing: 0.15em;
    white-space: nowrap;
    transform: translateX(0.2rem);
}

/* =========================================
   TERMIN BUTTON
========================================= */

.stickybar__appointment {
    display: none;
    align-items: center;
    justify-content: center;
    min-height: 46px;
    padding: 0.7rem 1.2rem;
    color: var(--color-sticky);
    background-color: var(--color-bg);
    border: 1px solid var(--color-bg);
    border-radius: var(--radius-small);
    font-size: var(--font-size-button);
    font-weight: 700;
    white-space: nowrap;
    box-shadow: 0 5px 15px rgb(0 30 90 / 20%);
    transition: transform var(--transition-fast), background-color var(--transition-fast);
}

.stickybar__appointment:hover {
    color: var(--color-bg);
    background-color: transparent;
    text-decoration: none;
    transform: translateY(-2px);
}

/* =========================================
   HAMBURGER
========================================= */

.hamburger {
    position: relative;
    z-index: 1010;
    display: flex;
    flex: 0 0 46px;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    width: 46px;
    height: 46px;
    gap: 6px;
    color: var(--color-bg);
    background-color: transparent;
    border: 1px solid rgb(255 255 255 / 45%);
    border-radius: var(--radius-small);
    transition: background-color var(--transition-fast), border-color var(--transition-fast);
}

.hamburger:hover {
    background-color: rgb(255 255 255 / 12%);
    border-color: var(--color-bg);
}

.hamburger__line {
    display: block;
    width: 25px;
    height: 2px;
    background-color: currentColor;
    border-radius: 2px;
    transition: transform 220ms ease, opacity 220ms ease;
}

.hamburger.open .hamburger__line:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
}

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

.hamburger.open .hamburger__line:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
}

/* =========================================
   HAUPTNAVIGATION
========================================= */

.main-navigation {
    position: fixed;
    top: var(--sticky-height-mobile);
    right: 0;
    bottom: 0;
    z-index: 999;
    width: 100%;
    background-color: var(--color-bg);
    box-shadow: -10px 15px 40px rgb(0 25 70 / 20%);
    visibility: hidden;
    opacity: 0;
    pointer-events: none;
    transform: translateX(100%);
    transition: transform var(--transition-normal), opacity var(--transition-normal), visibility var(--transition-normal);
    overflow-y: auto;
}

.main-navigation.active {
    visibility: visible;
    opacity: 1;
    pointer-events: auto;
    transform: translateX(0);
}

.main-navigation__inner {
    padding: 2rem;
}

.main-navigation ul {
    margin: 0;
    padding: 0;
    list-style: none;
}

.main-navigation > .main-navigation__inner > ul > li {
    border-bottom: 1px solid var(--color-border);
}

.main-navigation li {
    position: relative;
}

.main-navigation a {
    display: block;
    padding: 1rem 0.5rem;
    color: var(--color-text);
    font-size: var(--font-size-navigation);
    font-weight: 700;
    text-decoration: none;
    transition: color var(--transition-fast), padding-left var(--transition-fast);
}

.main-navigation a:hover {
    color: var(--color-sticky);
    padding-left: 1rem;
}

.main-navigation li.active > a {
    color: var(--color-sticky);
}

.main-navigation li li a {
    padding: 0.7rem 0.5rem 0.7rem 1.5rem;
    font-size: 0.95rem;
    font-weight: 500;
}

.main-navigation li li a:hover {
    padding-left: 2rem;
}

body.menu-open {
    overflow: hidden;
}

/* =========================================
   DESKTOP
========================================= */

@media (min-width: 701px) {
    body {
        padding-top: var(--sticky-height);
    }

    .stickybar__inner {
        width: min(calc(100% - 40px), var(--max-width));
        min-height: var(--sticky-height);
        gap: 2rem;
    }

    .stickybar__crest {
        height: 130px;
    }

    .stickybar__brand-name {
        font-size: clamp(4.2rem, 7vw, 6.4rem);
        line-height: 0.6;
        letter-spacing: 0.08em;
    }

    .stickybar__brand-subtitle {
        margin-top: 0.1rem;
        font-size: clamp(1.05rem, 1.75vw, 1.7rem);
        letter-spacing: 0.18em;
        transform: translateX(0.6rem);
    }

    .stickybar__appointment {
        display: inline-flex;
    }

    .hamburger {
        flex-basis: 52px;
        width: 52px;
        height: 52px;
    }

    .main-navigation {
        top: var(--sticky-height);
        width: min(420px, 100%);
    }
}

/* =========================================
   BRANDING AUSRICHTUNG
========================================= */

.stickybar__brand-subtitle {
    transform: none;
}