/* Site header — 2026 redesign (Modulabs, see /DESIGN.md). Markup: templates/template-parts/nav-design.php
   Bar: burger (left) · centered logo · language (right), transparent over the homepage hero photo.
   Burger → full-screen menu: all groups at once (≥768px), accordions on phones. Behaviour: js/design/nav.js */

header.lp-nav {
    --lp-nav-h: 96px;
    --lp-nav-pad: var(--spacing-32);
    --lp-nav-ease: cubic-bezier(0.33, 1, 0.68, 1);
    position: absolute;                         /* sits over the hero photo, like the old header */
    top: 0;
    left: 0;
    right: 0;
    z-index: 50;
    background: transparent;
    font-family: var(--font-geist-sans);
    color: var(--color-parchment-cream);
    -webkit-font-smoothing: antialiased;
}

/* the bar's own ground (sub-pages without a hero photo, and the sticky bar). It sits on a pseudo-element:
   a backdrop-filter on the header itself would make it the containing block of the fixed full-screen menu
   inside it, and the menu would shrink to the bar. */
header.lp-nav::before {
    content: "";
    position: absolute;
    inset: 0;
    z-index: 0;
    border-bottom: 1px solid var(--color-hairline);
    background: rgba(10, 10, 11, 0.86);
    -webkit-backdrop-filter: blur(16px);
    backdrop-filter: blur(16px);
    opacity: 0;
    pointer-events: none;
    transition: opacity 300ms linear;
}

body.page header.lp-nav::before,
header.lp-nav.is-stuck::before {
    opacity: 1;
}

header.lp-nav.is-open::before {
    opacity: 0;                                 /* the open menu brings its own full-screen ground */
}

/* sticky: once the page scrolls past the bar, it stays at the top of the window, a little lower, and slides in
   from above (js/design/nav.js toggles .is-stuck with some hysteresis) */
header.lp-nav.is-stuck {
    --lp-nav-h: 72px;
    position: fixed;
    animation: lp-nav-stick 420ms cubic-bezier(0.2, 0.8, 0.2, 1);
}

@keyframes lp-nav-stick {
    from { transform: translateY(-100%); }
}

header.lp-nav.is-stuck .lp-nav__logo {
    width: 92px;
}

@keyframes lp-nav-drop {
    from {
        opacity: 0;
        transform: translateY(-12px);
    }
}

.lp-ready .lp-nav__bar {
    animation: lp-nav-drop 800ms cubic-bezier(0.2, 0.8, 0.2, 1) backwards;
}

.lp-nav__bar {
    position: relative;
    z-index: 2;                                 /* stays above the open menu: logo, close button, language */
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
    align-items: center;
    height: var(--lp-nav-h);
    padding: 0 var(--lp-nav-pad);
    transition: height 300ms cubic-bezier(0.33, 1, 0.68, 1);
}

/* ---------------------------------------------------------------- burger */
.lp-nav__toggle {
    justify-self: start;
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-12);
    min-height: 44px;
    padding: 0 var(--spacing-4);
    border: 0;
    background: none;
    color: var(--color-parchment-cream);
    font: 400 var(--text-caption) / 1 var(--font-geist-mono);
    letter-spacing: var(--tracking-caption);
    text-transform: uppercase;
    white-space: nowrap;
    cursor: pointer;
}

.lp-nav__toggle-icon,
.lp-nav__toggle-icon::before,
.lp-nav__toggle-icon::after {
    display: block;
    width: 24px;
    height: 1.5px;
    background: currentColor;
    transition: transform var(--duration-ui-default) var(--lp-nav-ease), background-color var(--duration-color-fast) linear, width var(--duration-ui-default) var(--lp-nav-ease);
}

.lp-nav__toggle-icon {
    position: relative;
}

.lp-nav__toggle-icon::before,
.lp-nav__toggle-icon::after {
    content: "";
    position: absolute;
    left: 0;
}

.lp-nav__toggle-icon::before { top: -7px; }
.lp-nav__toggle-icon::after { top: 7px; width: 16px; }

.lp-nav__toggle:hover .lp-nav__toggle-icon::after {
    width: 24px;
}

.lp-nav.is-open .lp-nav__toggle-icon { background: transparent; }
.lp-nav.is-open .lp-nav__toggle-icon::before { transform: translateY(7px) rotate(45deg); }
.lp-nav.is-open .lp-nav__toggle-icon::after { width: 24px; transform: translateY(-7px) rotate(-45deg); }

/* ---------------------------------------------------------------- logo */
.lp-nav__logo {
    display: block;
    width: 116px;
    transition: width 300ms cubic-bezier(0.33, 1, 0.68, 1);
    color: var(--color-parchment-cream);        /* letters */
    line-height: 0;
}

.lp-nav__logo .lp-logo-svg {
    width: 100%;
    height: auto;
    fill: currentColor;
}

.lp-nav__logo .lp-logo-accent {
    fill: var(--color-signal-yellow);           /* the two yellow bars */
}

/* ---------------------------------------------------------------- language */
.lp-nav__lang {
    justify-self: end;
    display: flex;
    gap: 2px;
}

.lp-nav__lang a {
    display: inline-grid;
    place-items: center;
    min-width: 36px;
    min-height: 36px;
    color: var(--color-text-medium);
    font: 400 var(--text-caption) / 1 var(--font-geist-mono);
    letter-spacing: var(--tracking-caption);
    text-decoration: none;
    transition: color var(--duration-color-fast) linear;
}

.lp-nav__lang a:hover,
.lp-nav__lang a[aria-current] {
    color: var(--color-parchment-cream);
}

.lp-nav__lang a[aria-current] {
    text-decoration: underline;
    text-decoration-color: var(--color-signal-yellow);
    text-decoration-thickness: 2px;
    text-underline-offset: 6px;
}

.lp-nav__toggle:focus-visible,
.lp-nav__logo:focus-visible,
.lp-nav__lang a:focus-visible,
.lp-nav__trigger:focus-visible,
.lp-nav__link:focus-visible {
    outline: 2px solid var(--color-signal-yellow);
    outline-offset: 4px;
    border-radius: 2px;
}

/* ---------------------------------------------------------------- full-screen menu */
.lp-nav__menu {
    position: fixed;
    inset: 0;
    z-index: 1;
    overflow-y: auto;
    padding: calc(var(--lp-nav-h) + var(--spacing-48)) var(--lp-nav-pad) var(--spacing-64);
    background: rgba(10, 10, 11, 0.96);
    -webkit-backdrop-filter: blur(24px);
    backdrop-filter: blur(24px);
    animation: lp-nav-fade 320ms var(--lp-nav-ease);
}

.lp-nav__menu[hidden] {
    display: none;
}

@keyframes lp-nav-fade {
    from { opacity: 0; }
}

@keyframes lp-nav-rise {
    from {
        opacity: 0;
        transform: translateY(16px);
    }
}

body.lp-nav-open {
    overflow: hidden;
}

/* layout: the five product lines get the full width (3 airy columns); About + direct contact sit in a calm bar
   below a hairline (a right-hand column squeezed the products — client: "very cramped") */
.lp-nav__layout {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-48);
    max-width: 1440px;
    margin: 0 auto;
}

.lp-nav__groups {
    display: grid;
    gap: var(--spacing-48) var(--spacing-64);
    margin: 0;
    padding: 0;
    list-style: none;
}

.lp-nav__groups--products {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    row-gap: 56px;
}

/* bottom bar: About (links side by side) · direct contact (phone, e-mail, CTA in one line) */
.lp-nav__side {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: center;
    gap: var(--spacing-24) var(--spacing-64);
    padding-top: var(--spacing-32);
    border-top: 1px solid var(--color-hairline);
}

.lp-nav__groups--side {
    grid-template-columns: minmax(0, 1fr);
}

.lp-nav__groups--side .lp-nav__group {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: var(--spacing-8) var(--spacing-32);
}

.lp-nav__groups--side .lp-nav__trigger {
    width: auto;
    margin: 0;
}

.lp-nav__groups--side .lp-nav__links {
    display: flex;
    flex-wrap: wrap;
    gap: 0 var(--spacing-32);
    padding-left: 0;
}

.lp-nav__groups--side .lp-nav__link::before {
    left: -14px;
}

.lp-nav__group,
.lp-nav__contact {
    margin: 0;
    animation: lp-nav-rise 520ms var(--lp-nav-ease) backwards;
    animation-delay: calc(80ms + var(--i) * 45ms);   /* groups come up one after another */
}

/* desktop: the group title is a heading with its line icon; all links are always visible */
.lp-nav__trigger {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    margin: 0 0 var(--spacing-12);
    padding: 0;
    border: 0;
    background: none;
    color: var(--color-parchment-cream);
    font: var(--font-weight-medium) var(--text-body-lg) / 1.2 var(--font-geist-sans);
    letter-spacing: -0.01em;
    text-align: left;
    pointer-events: none;                       /* not an accordion on desktop */
}

.lp-nav__title {
    display: inline-flex;
    align-items: flex-start;                    /* a two-line title keeps its icon on the first line */
    gap: var(--spacing-12);
}

.lp-nav__icon {
    display: inline-flex;
    flex: none;
    margin-top: 1px;
    color: var(--color-signal-yellow);
}

.lp-nav__icon svg {
    width: 22px;
    height: 22px;
}

.lp-nav__chevron {
    display: none;
    width: 12px;
    height: 12px;
    opacity: 0.7;
    transition: transform var(--duration-ui-default) ease;
}

/* links sit under the title, indented to the title text (past the icon) */
.lp-nav__links {
    margin: 0;
    padding: 0 0 0 34px;
    list-style: none;
}

.lp-nav__link {
    position: relative;
    display: flex;
    align-items: baseline;
    gap: var(--spacing-8);
    min-height: 36px;
    padding: var(--spacing-8) 0;
    color: var(--color-text-medium);
    font-size: var(--text-body);
    line-height: 1.3;
    text-decoration: none;
    transition: color var(--duration-color-fast) linear;
}

/* hover: a small yellow square appears in front of the link (like the active product tab) */
.lp-nav__link::before {
    content: "";
    position: absolute;
    left: -20px;
    top: 50%;
    width: 6px;
    height: 6px;
    margin-top: -3px;
    border-radius: 1px;
    background: var(--color-signal-yellow);
    transform: scale(0);
    transition: transform var(--duration-ui-default) var(--lp-nav-ease);
}

.lp-nav__link:hover,
.lp-nav__link:focus-visible {
    color: var(--color-parchment-cream);
}

.lp-nav__link:hover::before,
.lp-nav__link:focus-visible::before {
    transform: scale(1);
}

/* short type code right after the name, as quiet mono text (no chip) */
.lp-nav__tag {
    flex: none;
    color: rgba(246, 243, 236, 0.42);
    font: 400 var(--text-label-small) / 1 var(--font-geist-mono);
    letter-spacing: var(--tracking-label-small);
    text-transform: uppercase;
}

/* direct contact: phone · e-mail · CTA in one line at the right of the bottom bar */
.lp-nav__contact {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: var(--spacing-12) var(--spacing-32);
}

.lp-nav__contact-title {
    position: absolute;                         /* the bar speaks for itself; the label stays for screen readers */
    width: 1px;
    height: 1px;
    overflow: hidden;
    clip: rect(0 0 0 0);
    margin: 0;
    color: var(--color-text-medium);
    font: 300 var(--text-caption) / var(--leading-caption) var(--font-geist-mono);
    letter-spacing: var(--tracking-caption);
    text-transform: uppercase;
}

.lp-nav__contact-line {
    color: var(--color-parchment-cream);
    font-size: var(--text-body);
    line-height: 1.5;
    text-decoration: none;
}

.lp-nav__contact-line:hover {
    color: var(--color-signal-yellow);
}

.lp-nav__cta {
    margin-left: var(--spacing-8);
}

/* ---------------------------------------------------------------- tablets: product lines 2 per row */
@media (max-width: 1099px) {
    .lp-nav__groups--products {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

/* ---------------------------------------------------------------- phones: accordions */
@media (max-width: 767px) {
    header.lp-nav {
        --lp-nav-h: 76px;
        --lp-nav-pad: var(--spacing-20);
    }

    header.lp-nav.is-stuck {
        --lp-nav-h: 64px;
    }

    header.lp-nav.is-stuck .lp-nav__logo {
        width: 84px;
    }

    .lp-nav__logo {
        width: 96px;
    }

    .lp-nav__toggle-label {
        position: absolute;                     /* icon only; the label stays readable for screen readers */
        width: 1px;
        height: 1px;
        overflow: hidden;
        clip: rect(0 0 0 0);
    }

    .lp-nav__menu {
        padding-top: calc(var(--lp-nav-h) + var(--spacing-16));
    }

    .lp-nav__layout,
    .lp-nav__side {
        display: flex;
        flex-direction: column;
        align-items: stretch;
        gap: 0;
        padding: 0;
        border: 0;
    }

    .lp-nav__groups--side .lp-nav__group {
        display: block;
    }

    .lp-nav__groups--side .lp-nav__trigger {
        width: 100%;
    }

    .lp-nav__groups--side .lp-nav__links {
        display: block;
        padding-left: 34px;
    }

    .lp-nav__groups--side .lp-nav__link::before {
        left: -20px;
    }

    .lp-nav__groups,
    .lp-nav__groups--products,
    .lp-nav__groups--side {
        grid-template-columns: minmax(0, 1fr);
        gap: 0;
    }

    .lp-nav__group {
        border-bottom: 1px solid var(--color-hairline);
    }

    .lp-nav__links {
        padding-left: 34px;
    }

    .lp-nav__contact {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-4);
        padding: var(--spacing-32) 0 0;
    }

    .lp-nav__contact-line {
        font-size: var(--text-body-lg);
    }

    .lp-nav__cta {
        margin: var(--spacing-16) 0 0;
    }

    .lp-nav__trigger {
        min-height: 60px;
        margin: 0;
        font-size: var(--text-body-lg);
        pointer-events: auto;
        cursor: pointer;
    }

    .lp-nav__chevron {
        display: block;
    }

    .lp-nav__trigger[aria-expanded="true"] .lp-nav__chevron {
        transform: rotate(180deg);
    }

    .lp-nav__panel[hidden] {
        display: none;
    }

    .lp-nav__panel {
        padding-bottom: var(--spacing-16);
    }

    .lp-nav__link {
        color: var(--color-parchment-cream);
    }
}

@media (prefers-reduced-motion: reduce) {
    header.lp-nav.is-stuck,
    .lp-ready .lp-nav__bar,
    .lp-nav__menu,
    .lp-nav__group,
    .lp-nav__contact {
        animation: none;
    }

    .lp-nav__link::before {
        transition: none;
    }

    .lp-nav__link,
    .lp-nav__toggle-icon,
    .lp-nav__toggle-icon::before,
    .lp-nav__toggle-icon::after {
        transition: none;
    }
}

/* ---------------------------------------------------------------- scroll progress (a touch of yellow on every screen)
   2px Signal Yellow line across the top of the window, scaled by js/design/nav.js; hidden while the menu is open */
.lp-progress {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 60;
    height: 2px;
    pointer-events: none;
}

.lp-progress__bar {
    display: block;
    height: 100%;
    background: var(--color-signal-yellow);
    transform: scaleX(0);
    transform-origin: left center;
}

body.lp-nav-open .lp-progress {
    opacity: 0;
}

/* ---------------------------------------------------------------- touch screens: controls ≥ 44 × 44px */
@media (pointer: coarse) {
    .lp-nav__toggle {
        min-width: 44px;
        justify-content: center;
    }

    .lp-nav__lang a {
        min-width: 44px;
        min-height: 44px;
    }
}