/* Web Esse header / navigation — Phase 2.
 * Personal developer site; keep the links calm, readable and unobtrusive.
 */
.page-header {
    position: relative;
    z-index: 30;
    box-sizing: border-box;
    width: 100%;
    max-width: none;
    margin: 0;
    background: #fff;
    border-bottom: 1px solid #e6edf3;
    display: block;
}
.page-header *,
.page-header *::before,
.page-header *::after { box-sizing: border-box; }
.page-header__inner {
    width: min(100%, 1200px);
    min-height: 80px;
    padding: 12px 28px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
}
.page-header .page-header__logo {
    flex: 0 0 auto;
    display: inline-flex;
    flex-direction: column;
    align-items: flex-start;
    justify-content: center;
    gap: 3px;
    height: auto;
    padding: 0;
    background: transparent;
    color: #172c42;
    text-align: left;
    text-transform: none;
    text-decoration: none;
    line-height: 1.15;
}
.page-header__brand {
    font-size: 24px;
    font-weight: 700;
    letter-spacing: -0.04em;
}
.page-header__tagline {
    font-size: 12px;
    font-weight: 400;
    letter-spacing: .01em;
    color: #607286;
}
.page-header .main-nav {
    position: static;
    flex: 0 1 auto;
    width: auto;
    min-height: 0;
    margin: 0;
    background: transparent;
}
.page-header .main-nav__wrapper { display: block; position: static; box-shadow: none; }
.page-header .site-nav {
    width: auto;
    display: flex;
    flex-wrap: nowrap;
    align-items: center;
    justify-content: flex-end;
    gap: 4px;
    margin: 0;
    padding: 0;
    font-weight: 500;
}
.page-header .site-nav__item { display: block; margin: 0; position: relative; }
.page-header .site-nav__item::after { content: none; }
.page-header .site-nav__item a,
.page-header .main-nav--closed .site-nav__item--active a {
    display: block;
    padding: 10px 12px;
    border-radius: 7px;
    background: transparent;
    color: #34475b;
    font-size: 15px;
    font-weight: 500;
    line-height: 1.3;
    letter-spacing: 0;
    text-transform: none;
    text-decoration: none;
    text-align: left;
    white-space: nowrap;
    transition: background-color .2s ease, color .2s ease;
}
.page-header .site-nav__item a:hover,
.page-header .site-nav__item a:focus-visible {
    color: #1265a4;
    background: #f3f8fc;
}
.page-header .site-nav__item--active a,
.page-header .main-nav--closed .site-nav__item--active a {
    color: #1265a4;
    background: #edf6fc;
}
.page-header .site-nav__item--modules a {
    color: #1265a4;
    font-weight: 700;
}
.page-header .site-nav__item--modules a:hover { background: #e7f4fb; }
.page-header a:focus-visible,
.page-header button:focus-visible {
    outline: 2px solid #278ac0;
    outline-offset: 3px;
}
.page-header .main-nav__togle { display: none; }

@media (max-width: 820px) {
    .page-header__inner { min-height: 70px; padding: 10px 20px; gap: 12px; }
    .page-header__brand { font-size: 22px; }
    .page-header__tagline { font-size: 11px; }
    .page-header .main-nav { flex: 0 0 auto; }
    .page-header .main-nav__togle {
        position: static;
        display: flex;
        align-items: center;
        justify-content: center;
        width: 44px;
        height: 44px;
        min-height: 0;
        padding: 0;
        margin: 0;
        border: 1px solid #dde6ee;
        border-radius: 8px;
        background: #fff;
        color: #172c42;
        cursor: pointer;
    }
    .page-header .main-nav__togle::before,
    .page-header .main-nav__togle::after { content: none; }
    .page-header .main-nav__icon { width: 20px; display: grid; gap: 4px; }
    .page-header .main-nav__icon span {
        display: block;
        width: 20px;
        height: 2px;
        border-radius: 2px;
        background: currentColor;
        transition: transform .2s ease, opacity .2s ease;
    }
    .page-header .main-nav--opened .main-nav__icon span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
    .page-header .main-nav--opened .main-nav__icon span:nth-child(2) { opacity: 0; }
    .page-header .main-nav--opened .main-nav__icon span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }
    .page-header .main-nav__wrapper,
    .page-header .main-nav--closed .main-nav__wrapper { display: none; }
    .page-header .main-nav--opened .main-nav__wrapper {
        display: block;
        position: absolute;
        top: calc(100% + 1px);
        left: 0;
        right: 0;
        width: 100%;
        padding: 12px 20px 18px;
        background: #fff;
        border-bottom: 1px solid #dde6ee;
        box-shadow: 0 14px 28px rgba(15, 37, 58, .1);
    }
    .page-header .site-nav { display: flex; flex-direction: column; align-items: stretch; gap: 3px; width: 100%; }
    .page-header .main-nav--closed .site-nav__item,
    .page-header .main-nav--opened .site-nav__item { display: block; }
    .page-header .site-nav__item a,
    .page-header .main-nav--closed .site-nav__item--active a { padding: 12px 14px; font-size: 16px; }
    .page-header .site-nav__item--active a,
    .page-header .main-nav--closed .site-nav__item--active a { color: #1265a4; background: #edf6fc; }
}
@media (max-width: 380px) {
    .page-header__inner { padding: 10px 14px; }
    .page-header__tagline { font-size: 10px; }
}
@media (prefers-reduced-motion: reduce) {
    .page-header *,
    .page-header *::before,
    .page-header *::after { transition: none !important; }
}