:root {
    --upp-bg-page: #F7F0DF;
    --upp-bg-elevated: rgba(247, 240, 223, .94);
    --upp-header-ink: #0f0f0f;
    --upp-header-muted: #6b6660;
    --upp-header-accent: #c44b27;
    --upp-header-accent-deep: #8c331a;
    --upp-header-accent-ink: #fff;
    --upp-header-border: rgba(15, 15, 15, .08);
    --upp-header-border-strong: rgba(15, 15, 15, .18);
    --upp-header-shadow-drawer: -12px 0 32px rgba(0, 0, 0, .14);
    --upp-header-font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    --upp-header-font-serif: Georgia, "Times New Roman", serif;
    --upp-header-transition: 180ms cubic-bezier(.4, 0, .2, 1);
}

/* ============================================================
   HEADER — masthead treatment
   Distinctive moves vs stock SaaS:
   - 3px rust accent stripe at the very top (publication brand band)
   - Double-rule bottom border (print masthead convention, not single border)
   - Mixed-weight wordmark with rust period as brand mark
   - Italic serif tagline for editorial contrast
   - Subtle backdrop on scroll instead of just shadow
============================================================ */

.upp-header {
    position: sticky;
    top: 0;
    z-index: 999;
    background: var(--upp-bg-page);
    color: var(--upp-header-ink);
    font-family: var(--upp-header-font);
    transition: background var(--upp-header-transition), backdrop-filter var(--upp-header-transition);
}

/* Top accent stripe — publication brand band */
.upp-header::before {
    content: "";
    display: block;
    height: 3px;
    background: var(--upp-header-accent);
}

/* Double-rule bottom border — two thin lines, print-masthead style */
.upp-header::after {
    content: "";
    display: block;
    height: 3px;
    border-top: 1px solid var(--upp-header-border-strong);
    border-bottom: 1px solid var(--upp-header-border);
    background: var(--upp-bg-page);
}

.upp-header__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    width: min(1120px, 100%);
    margin: 0 auto;
    padding: 20px 28px 18px;
    position: relative;
}

.upp-header__logo-lockup {
    display: flex;
    align-items: center;
    gap: 14px;
    color: inherit;
    text-decoration: none;
    transition: opacity var(--upp-header-transition);
}

.upp-header__logo-lockup:hover {
    opacity: 0.88;
}

.upp-header__mark {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 88px;
    height: 88px;
    flex: 0 0 88px;
    transition: transform var(--upp-header-transition);
}

.upp-header__logo-lockup:hover .upp-header__mark {
    transform: rotate(-3deg);
}

.upp-header__mark img,
.upp-header__mark svg {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: contain;
}

/* Placeholder mark — distinctive stamp treatment, not just a flat circle */
.upp-header__mark--placeholder {
    border-radius: 50%;
    background: var(--upp-header-accent);
    color: var(--upp-header-accent-ink);
    font-size: 20px;
    font-weight: 800;
    line-height: 1;
    box-shadow:
        0 0 0 1px var(--upp-bg-page),
        0 0 0 2px var(--upp-header-accent-deep);
    text-shadow: 0 1px 0 var(--upp-header-accent-deep);
}

/* WORDMARK — publication masthead treatment */
.upp-header__wordmark {
    display: flex;
    flex-direction: column;
    gap: 4px;
    color: var(--upp-header-ink);
    line-height: 1;
}

.upp-header__wordmark > span {
    font-size: 23px;
    font-weight: 700;
    letter-spacing: -0.018em;
    white-space: nowrap;
    /* Rust period — the brand mark inside the wordmark itself */
    position: relative;
}

.upp-header__wordmark > span::after {
    content: ".";
    color: var(--upp-header-accent);
    font-weight: 800;
    margin-left: 1px;
}

/* Italic serif tagline — editorial contrast against bold sans wordmark */
.upp-header__wordmark small {
    color: var(--upp-header-muted);
    font-family: var(--upp-header-font-serif);
    font-size: 12px;
    font-style: italic;
    font-weight: 400;
    letter-spacing: 0.01em;
    white-space: nowrap;
}

/* NAV — print-style spacing + distinct active state */
.upp-header__nav {
    display: flex;
    align-items: center;
    gap: 32px;
}

.upp-header__nav-list {
    display: flex;
    gap: 28px;
    align-items: center;
    margin: 0;
    padding: 0;
    list-style: none;
}

.upp-header__nav-link {
    position: relative;
    display: inline-flex;
    align-items: center;
    min-height: 32px;
    color: var(--upp-header-ink);
    font-size: 14px;
    font-weight: 600;
    text-decoration: none;
    white-space: nowrap;
    letter-spacing: 0.005em;
    transition: color var(--upp-header-transition);
}

/* Subtle underline grows on hover from center — print/editorial feel */
.upp-header__nav-link::before {
    content: "";
    position: absolute;
    bottom: -4px;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--upp-header-accent);
    transition: width var(--upp-header-transition), left var(--upp-header-transition);
}

.upp-header__nav-link:hover {
    color: var(--upp-header-accent);
}

.upp-header__nav-link:hover::before {
    width: 100%;
    left: 0;
}

.upp-header__nav-link[aria-current="page"] {
    color: var(--upp-header-accent);
}

.upp-header__nav-link[aria-current="page"]::before {
    width: 100%;
    left: 0;
    height: 2px;
    background: var(--upp-header-accent);
}

/* CTA — substantial, with distinct arrow animation */
.upp-header__cta {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    min-height: 44px;
    border: 0;
    border-radius: 4px;
    background: var(--upp-header-accent);
    color: var(--upp-header-accent-ink);
    padding: 11px 20px;
    font-family: inherit;
    font-size: 14px;
    font-weight: 700;
    letter-spacing: 0.005em;
    text-decoration: none;
    cursor: pointer;
    box-shadow:
        inset 0 -2px 0 rgba(0, 0, 0, 0.15),
        0 1px 2px rgba(196, 75, 39, 0.25);
    transition:
        background var(--upp-header-transition),
        transform var(--upp-header-transition),
        box-shadow var(--upp-header-transition);
}

.upp-header__cta:hover {
    background: var(--upp-header-accent-deep);
    color: var(--upp-header-accent-ink);
    box-shadow:
        inset 0 -2px 0 rgba(0, 0, 0, 0.2),
        0 2px 6px rgba(196, 75, 39, 0.35);
}

.upp-header__cta:active {
    transform: translateY(1px);
    box-shadow:
        inset 0 -1px 0 rgba(0, 0, 0, 0.15),
        0 1px 2px rgba(196, 75, 39, 0.25);
}

.upp-header__cta-arrow {
    font-size: 16px;
    line-height: 1;
    transition: transform var(--upp-header-transition);
    display: inline-block;
}

.upp-header__cta:hover .upp-header__cta-arrow {
    transform: translateX(3px);
}

/* SCROLLED STATE — backdrop blur, condensed */
.upp-header.is-scrolled {
    background: var(--upp-bg-elevated);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.upp-header.is-scrolled .upp-header__inner {
    padding: 12px 28px;
}

.upp-header.is-scrolled .upp-header__mark {
    width: 44px;
    height: 44px;
    flex-basis: 44px;
}

.upp-header.is-scrolled .upp-header__wordmark > span {
    font-size: 18px;
}

.upp-header.is-scrolled .upp-header__wordmark small {
    display: none;
}

.upp-header.is-scrolled .upp-header__cta {
    min-height: 38px;
    padding: 9px 16px;
    font-size: 13px;
}

/* MOBILE */
.upp-header__mobile-actions {
    display: none;
}

.upp-header__menu-btn {
    display: none;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    gap: 5px;
    width: 42px;
    height: 42px;
    border: 1px solid var(--upp-header-border-strong);
    border-radius: 4px;
    background: transparent;
    padding: 8px;
    cursor: pointer;
    transition: background var(--upp-header-transition);
}

.upp-header__menu-btn:hover {
    background: rgba(196, 75, 39, 0.08);
}

/* SVG hamburger icon — bulletproof 3-line pancake.
   No CSS-variable dependency, no pixel-density gymnastics,
   no flex-gap cascade issues. Renders identically on every device. */
.upp-header__menu-icon {
    display: block;
    width: 24px;
    height: 24px;
    color: var(--upp-header-ink, #0f0f0f);
    transition: transform var(--upp-header-transition);
}

.upp-header__cta--mobile {
    display: none;
    min-height: 38px;
    padding: 8px 12px;
    font-size: 12px;
}

.upp-header__drawer-backdrop {
    position: fixed;
    inset: 0;
    z-index: 998;
    background: rgba(15, 15, 15, .42);
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--upp-header-transition);
}

.upp-header__drawer {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    z-index: 1000;
    display: flex;
    flex-direction: column;
    width: min(380px, 78vw);
    background: var(--upp-bg-page);
    box-shadow: var(--upp-header-shadow-drawer);
    padding: 24px 22px;
    transform: translateX(100%);
    transition: transform var(--upp-header-transition);
    border-left: 3px solid var(--upp-header-accent);
}

.upp-header.is-open .upp-header__drawer-backdrop {
    opacity: 1;
    pointer-events: auto;
}

.upp-header.is-open .upp-header__drawer {
    transform: translateX(0);
}

/* Open-state — rotate the whole SVG icon 90° as a simple "active" tell.
   Cleaner than animating individual lines and works on any device. */
.upp-header.is-open .upp-header__menu-icon {
    transform: rotate(90deg);
}

.upp-header__drawer-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 20px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--upp-header-border);
}

.upp-header__drawer-label {
    color: var(--upp-header-muted);
    font-family: var(--upp-header-font-serif);
    font-size: 12px;
    font-style: italic;
    font-weight: 400;
    letter-spacing: 0.04em;
}

.upp-header__drawer-close {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 42px;
    height: 42px;
    border: 1px solid var(--upp-header-border-strong);
    border-radius: 50%;
    background: transparent;
    color: var(--upp-header-ink);
    font-family: inherit;
    font-size: 24px;
    font-weight: 400;
    line-height: 1;
    cursor: pointer;
    transition: background var(--upp-header-transition), border-color var(--upp-header-transition);
}

.upp-header__drawer-close:hover {
    background: rgba(196, 75, 39, 0.08);
    border-color: var(--upp-header-accent);
}

.upp-header__drawer-close:focus-visible {
    outline: 2px solid var(--upp-header-accent);
    outline-offset: 3px;
}

.upp-header__drawer-list {
    margin: 0;
    padding: 0;
    list-style: none;
}

.upp-header__drawer-list li {
    border-bottom: 1px solid var(--upp-header-border);
}

.upp-header__drawer-link {
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 56px;
    color: var(--upp-header-ink);
    font-size: 18px;
    font-weight: 600;
    letter-spacing: -0.005em;
    text-decoration: none;
    transition: color var(--upp-header-transition);
}

.upp-header__drawer-link:hover {
    color: var(--upp-header-accent);
}

.upp-header__drawer-link .arrow {
    color: var(--upp-header-muted);
    font-size: 16px;
    transition: transform var(--upp-header-transition), color var(--upp-header-transition);
}

.upp-header__drawer-link:hover .arrow {
    color: var(--upp-header-accent);
    transform: translateX(4px);
}

.upp-header__drawer-link[aria-current="page"] {
    color: var(--upp-header-accent);
}

.upp-header__drawer-cta-wrap {
    margin-top: auto;
    padding-top: 24px;
}

.upp-header__drawer-cta {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    width: 100%;
    min-height: 52px;
    border: 0;
    border-radius: 4px;
    background: var(--upp-header-accent);
    color: var(--upp-header-accent-ink);
    padding: 14px;
    font-family: inherit;
    font-size: 15px;
    font-weight: 700;
    text-decoration: none;
    cursor: pointer;
    box-shadow: inset 0 -2px 0 rgba(0, 0, 0, 0.15);
    transition: background var(--upp-header-transition);
}

.upp-header__drawer-cta:hover {
    background: var(--upp-header-accent-deep);
}

.upp-header__drawer-microcopy {
    margin-top: 14px;
    color: var(--upp-header-muted);
    font-family: var(--upp-header-font-serif);
    font-size: 12px;
    font-style: italic;
    text-align: center;
}

body.upp-drawer-open {
    overflow: hidden;
}

.upp-skip-link {
    position: absolute;
    top: 0;
    left: -9999px;
    z-index: 1001;
    background: var(--upp-header-ink);
    color: var(--upp-header-accent-ink);
    padding: 12px 16px;
    text-decoration: none;
    font-weight: 700;
}

.upp-skip-link:focus {
    top: 8px;
    left: 8px;
}

@media (min-width: 881px) {
    .upp-header__drawer,
    .upp-header__drawer-backdrop,
    .upp-header__mobile-actions,
    .upp-header__menu-btn {
        display: none !important;
    }

    body.upp-drawer-open {
        overflow: auto;
    }
}

@media (max-width: 880px) {
    .upp-header__inner {
        gap: 12px;
        padding: 14px 18px;
    }

    .upp-header.is-scrolled .upp-header__inner {
        padding: 11px 18px;
    }

    .upp-header__mark {
        width: 48px;
        height: 48px;
        flex-basis: 48px;
    }

    .upp-header.is-scrolled .upp-header__mark {
        width: 38px;
        height: 38px;
        flex-basis: 38px;
    }

    .upp-header__wordmark > span {
        font-size: 16px;
    }

    .upp-header.is-scrolled .upp-header__wordmark > span {
        font-size: 15px;
    }

    .upp-header__wordmark small {
        display: none;
    }

    .upp-header__nav,
    .upp-header__cta--desktop {
        display: none;
    }

    .upp-header__mobile-actions {
        display: flex;
        align-items: center;
        gap: 10px;
    }

    .upp-header__cta--mobile,
    .upp-header__menu-btn {
        display: inline-flex;
    }
}