/* ============================================================
   P4RS.COM — 1990s homepage theme
   Times New Roman, beveled Windows-95 gray chrome, blue links.
   No neon, no motion. Light + dark (prefers-color-scheme).
   ============================================================ */

:root {
    --page: #ffffff;      /* page background        */
    --panel: #ffffff;     /* white content boxes     */
    --face: #c0c0c0;      /* silver chrome / bars    */
    --edge-hi: #ffffff;   /* bevel highlight edge    */
    --edge-lo: #808080;   /* bevel shadow edge       */
    --border: #808080;    /* solid box borders       */
    --ink: #000000;       /* text                    */
    --muted: #6d6d6d;     /* labels, captions        */
    --link: #0000ee;
    --visited: #551a8b;
    --active: #ff0000;
    --check: #008000;
    --max: 800px;
}

/* Dark palette — applied automatically by the OS setting (unless the user
   forced light), and by the header toggle via [data-theme="dark"]. */
@media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) {
        --page: #1e1e1e;
        --panel: #2a2a2a;
        --face: #3a3a3a;
        --edge-hi: #565656;
        --edge-lo: #141414;
        --border: #565656;
        --ink: #e6e6e6;
        --muted: #9a9a9a;
        --link: #7ab0ff;
        --visited: #c3a3ff;
        --active: #ff8a80;
        --check: #5cc85c;
    }
}
:root[data-theme="dark"] {
    --page: #1e1e1e;
    --panel: #2a2a2a;
    --face: #3a3a3a;
    --edge-hi: #565656;
    --edge-lo: #141414;
    --border: #565656;
    --ink: #e6e6e6;
    --muted: #9a9a9a;
    --link: #7ab0ff;
    --visited: #c3a3ff;
    --active: #ff8a80;
    --check: #5cc85c;
}

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

body {
    margin: 0;
    background: var(--page);
    color: var(--ink);
    font-family: 'Times New Roman', Times, Georgia, serif;
    font-size: 16px;
    line-height: 1.5;
}

img { max-width: 100%; height: auto; }

a { color: var(--link); text-decoration: underline; }
a:visited { color: var(--visited); }
a:active { color: var(--active); }

.container { width: 100%; max-width: var(--max); margin: 0 auto; padding: 0 16px; }

/* === Navigation (menu bar) === */
.nav {
    background: var(--face);
    border-top: 2px solid var(--edge-hi);
    border-bottom: 2px solid var(--edge-lo);
}
.nav__container {
    max-width: var(--max);
    margin: 0 auto;
    padding: 6px 16px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.nav__logo { display: inline-flex; align-items: center; gap: 8px; color: var(--ink); text-decoration: none; font-weight: bold; font-size: 18px; }
.nav__logo:visited { color: var(--ink); }
.nav__logo-img { width: 22px; height: 22px; }
.nav__logo-dot { color: var(--muted); }

.nav__links { display: flex; }
.nav__link { color: var(--ink); text-decoration: none; padding: 2px 12px; border-left: 1px solid var(--border); }
.nav__link:first-child { border-left: none; }
.nav__link:visited { color: var(--ink); }
.nav__link:hover { text-decoration: underline; }

.nav__mobile-toggle {
    display: none;
    flex-direction: column;
    gap: 3px;
    background: var(--face);
    border: 2px solid;
    border-color: var(--edge-hi) var(--edge-lo) var(--edge-lo) var(--edge-hi);
    padding: 5px 6px;
    cursor: pointer;
}
.nav__mobile-toggle span { display: block; width: 18px; height: 2px; background: var(--ink); }

.nav__actions { display: flex; align-items: center; gap: 12px; }

/* === Theme toggle (beveled button) === */
.theme-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: var(--face);
    border: 2px solid;
    border-color: var(--edge-hi) var(--edge-lo) var(--edge-lo) var(--edge-hi);
    padding: 4px 7px;
    cursor: pointer;
    color: var(--ink);
}
.theme-toggle:active { border-color: var(--edge-lo) var(--edge-hi) var(--edge-hi) var(--edge-lo); }
.theme-toggle svg { width: 16px; height: 16px; }

/* Show moon in light, sun in dark. JS sets [data-theme]; the media query
   covers the no-JS case when the OS is dark and light isn't forced. */
.theme-toggle__sun { display: none; }
.theme-toggle__moon { display: block; }
@media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) .theme-toggle__sun { display: block; }
    :root:not([data-theme="light"]) .theme-toggle__moon { display: none; }
}

/* === Language switcher (native <details> dropdown, beveled) === */
.lang { position: relative; }
.lang__summary {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    background: var(--face);
    border: 2px solid;
    border-color: var(--edge-hi) var(--edge-lo) var(--edge-lo) var(--edge-hi);
    padding: 3px 7px;
    cursor: pointer;
    color: var(--ink);
    list-style: none;
    user-select: none;
    font-size: 13px;
    line-height: 1;
}
.lang__summary::-webkit-details-marker { display: none; }
.lang__summary::marker { content: ""; }
.lang__summary svg { width: 16px; height: 16px; }
.lang__code { font-weight: bold; letter-spacing: 0.5px; }
.lang[open] .lang__summary { border-color: var(--edge-lo) var(--edge-hi) var(--edge-hi) var(--edge-lo); }
.lang__menu {
    position: absolute;
    right: 0;
    top: calc(100% + 4px);
    margin: 0;
    padding: 2px;
    list-style: none;
    background: var(--panel);
    border: 2px solid;
    border-color: var(--edge-hi) var(--edge-lo) var(--edge-lo) var(--edge-hi);
    min-width: 128px;
    z-index: 50;
}
.lang__option {
    display: block;
    padding: 5px 10px;
    color: var(--ink);
    text-decoration: none;
    white-space: nowrap;
}
.lang__option:visited { color: var(--ink); }
.lang__option:hover { background: var(--face); text-decoration: underline; }
.lang__option.is-active { font-weight: bold; }
.lang__option.is-active::before { content: "\2713\00a0"; color: var(--check); }
:root[data-theme="dark"] .theme-toggle__sun { display: block; }
:root[data-theme="dark"] .theme-toggle__moon { display: none; }
:root[data-theme="light"] .theme-toggle__sun { display: none; }
:root[data-theme="light"] .theme-toggle__moon { display: block; }

/* === Mobile menu === */
.mobile-menu { display: none; }
.mobile-menu.active { display: block; }
.mobile-menu__overlay { position: fixed; inset: 0; background: rgba(0,0,0,0.4); z-index: 30; }
.mobile-menu__content {
    position: fixed;
    top: 0; right: 0;
    z-index: 40;
    width: 70%;
    max-width: 260px;
    height: 100%;
    background: var(--face);
    border-left: 2px solid var(--edge-hi);
    padding: 24px 16px;
    display: flex;
    flex-direction: column;
    gap: 4px;
}
.mobile-menu__link { color: var(--ink); text-decoration: none; padding: 8px 0; border-bottom: 1px solid var(--border); }
.mobile-menu__link:visited { color: var(--ink); }

/* === Buttons (beveled) === */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 5px 16px;
    font-family: inherit;
    font-size: 15px;
    color: var(--ink);
    text-decoration: none;
    background: var(--face);
    border: 2px solid;
    border-color: var(--edge-hi) var(--edge-lo) var(--edge-lo) var(--edge-hi);
    cursor: pointer;
    line-height: 1.4;
}
.btn:visited { color: var(--ink); }
.btn:active { border-color: var(--edge-lo) var(--edge-hi) var(--edge-hi) var(--edge-lo); }
.btn svg { width: 16px; height: 16px; }
.btn--primary { font-weight: bold; }

/* === Section header === */
.section-header { margin: 28px 0 16px; }
.section-label { display: inline-block; font-size: 12px; text-transform: uppercase; letter-spacing: 1px; color: var(--muted); }
.section-title { font-size: 26px; font-weight: bold; margin: 4px 0 6px; border-bottom: 2px solid var(--border); padding-bottom: 4px; }
.section-subtitle { margin: 0; font-style: italic; }

/* === Hero === */
.hero { max-width: var(--max); margin: 0 auto; padding: 32px 16px 20px; }
.hero__title { font-size: 34px; font-weight: bold; margin: 0 0 12px; line-height: 1.2; }
.hero__title-highlight { color: var(--ink); }
.hero__subtitle { font-size: 18px; margin: 0 0 20px; }
.hero__actions { display: flex; flex-wrap: wrap; gap: 12px; }

/* === Projects === */
.projects { padding: 8px 0 24px; }
.projects__grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 16px; }

.project-card {
    display: flex;
    flex-direction: column;
    background: var(--panel);
    border: 2px solid;
    border-color: var(--edge-hi) var(--edge-lo) var(--edge-lo) var(--edge-hi);
    outline: 1px solid var(--border);
}
.project-card__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 5px 10px;
    font-size: 13px;
    background: var(--face);
    border-bottom: 2px solid var(--border);
}
.project-card__platform { display: inline-flex; align-items: center; gap: 6px; }
.project-card__number { font-weight: bold; }
.project-card__screenshot { border-bottom: 2px solid var(--border); }
.project-card__screenshot img { width: 100%; display: block; }
.project-card__body { padding: 10px; flex: 1; }
.project-card__name { font-size: 20px; font-weight: bold; margin: 0 0 2px; }
.project-card__tagline { font-style: italic; margin: 0 0 8px; }
.project-card__desc { font-size: 15px; margin: 0; }
.project-card__footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 8px 10px;
    background: var(--face);
    border-top: 2px solid var(--border);
}
.project-card__link { color: var(--link); font-weight: bold; display: inline-flex; align-items: center; gap: 4px; }
.project-card__external { color: var(--link); display: inline-flex; }

/* === About === */
.about { padding: 8px 0 32px; }
.about__text { max-width: 62ch; }

/* === Project hero === */
.project-hero { padding: 20px 0; border-bottom: 2px solid var(--border); }
.project-hero__back { color: var(--link); display: inline-flex; align-items: center; gap: 4px; margin-bottom: 12px; }
.project-hero__back svg { width: 16px; height: 16px; }
.project-hero__meta { font-size: 13px; color: var(--muted); margin-bottom: 6px; }
.project-hero__title { font-size: 32px; font-weight: bold; margin: 0 0 6px; }
.project-hero__tagline { font-style: italic; font-size: 18px; margin: 0 0 8px; }
.project-hero__desc { margin: 0 0 16px; max-width: 62ch; }
.project-hero__actions { display: flex; flex-wrap: wrap; gap: 12px; }

/* === Stats === */
.project-stats { padding: 20px 0; }
.project-stats__grid { display: flex; flex-wrap: wrap; gap: 16px; }
.project-stats__item {
    background: var(--panel);
    border: 2px solid;
    border-color: var(--edge-hi) var(--edge-lo) var(--edge-lo) var(--edge-hi);
    outline: 1px solid var(--border);
    padding: 10px 18px;
    text-align: center;
}
.project-stats__value { display: block; font-size: 22px; font-weight: bold; }
.project-stats__label { font-size: 13px; color: var(--muted); }

/* === Gallery === */
.project-gallery { padding: 20px 0; }
.project-gallery__track { background: var(--panel); border: 2px solid var(--border); }
.project-gallery__slide { display: none; }
.project-gallery__slide.active { display: block; }
.project-gallery__image-wrapper img { width: 100%; display: block; }
.project-gallery__caption {
    display: block;
    padding: 8px;
    text-align: center;
    font-style: italic;
    background: var(--face);
    border-top: 2px solid var(--border);
}
.project-gallery__controls { display: flex; align-items: center; justify-content: center; gap: 12px; margin-top: 12px; }
.project-gallery__btn {
    background: var(--face);
    border: 2px solid;
    border-color: var(--edge-hi) var(--edge-lo) var(--edge-lo) var(--edge-hi);
    padding: 4px;
    cursor: pointer;
    color: var(--ink);
    display: inline-flex;
}
.project-gallery__btn:active { border-color: var(--edge-lo) var(--edge-hi) var(--edge-hi) var(--edge-lo); }
.project-gallery__btn svg { width: 18px; height: 18px; }
.project-gallery__dots { display: flex; gap: 6px; }
.project-gallery__dot {
    width: 13px; height: 13px;
    padding: 0;
    background: var(--face);
    border: 2px solid;
    border-color: var(--edge-lo) var(--edge-hi) var(--edge-hi) var(--edge-lo);
    cursor: pointer;
}
.project-gallery__dot.active { background: var(--ink); }

/* === Features === */
.project-features { padding: 20px 0; }
.project-features__grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 6px; }
.project-features__item { display: flex; align-items: center; gap: 8px; }
.project-features__icon { color: var(--check); display: inline-flex; }
.project-features__icon svg { width: 16px; height: 16px; }

/* === Other projects === */
.other-projects { padding: 20px 0 32px; }
.other-projects__grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 12px; }
.other-project-card {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px;
    background: var(--panel);
    border: 2px solid var(--border);
    color: var(--ink);
    text-decoration: none;
}
.other-project-card:visited { color: var(--ink); }
.other-project-card__preview { flex-shrink: 0; width: 54px; height: 54px; border: 1px solid var(--border); overflow: hidden; }
.other-project-card__preview img { width: 100%; height: 100%; object-fit: cover; }
.other-project-card__info { flex: 1; min-width: 0; }
.other-project-card__info h3 { font-size: 17px; font-weight: bold; margin: 0 0 2px; }
.other-project-card__info p { font-size: 14px; font-style: italic; margin: 0; }
.other-project-card svg { width: 16px; height: 16px; flex-shrink: 0; color: var(--muted); }

/* === Footer === */
.footer { background: var(--face); border-top: 2px solid var(--edge-hi); margin-top: 32px; }
.footer > .container { padding-top: 20px; padding-bottom: 20px; }
.footer__grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr; gap: 24px; margin-bottom: 16px; }
.footer__logo { display: inline-flex; align-items: center; gap: 8px; color: var(--ink); text-decoration: none; font-weight: bold; }
.footer__logo:visited { color: var(--ink); }
.footer__logo-img { width: 20px; height: 20px; }
.footer__tagline { font-style: italic; margin: 6px 0 0; font-size: 14px; }
.footer__heading { font-size: 12px; text-transform: uppercase; letter-spacing: 1px; color: var(--muted); margin: 0 0 8px; }
.footer__list { list-style: none; margin: 0; padding: 0; }
.footer__list li { margin: 4px 0; }
.footer__link { color: var(--link); font-size: 14px; }
.footer__bottom { border-top: 1px solid var(--border); padding-top: 12px; text-align: center; font-size: 13px; }
.footer__bottom p { margin: 0; }

/* === 404 === */
.error-page { text-align: center; padding: 60px 16px; }
.error-page__content { max-width: 420px; margin: 0 auto; }
.error-page__code { display: block; font-size: 64px; font-weight: bold; }
.error-page__title { font-size: 24px; font-weight: bold; margin: 0 0 8px; }
.error-page__text { margin: 0 0 20px; }
.error-page .btn { display: inline-flex; }

/* === Responsive === */
@media (max-width: 640px) {
    .nav__links { display: none; }
    .nav__mobile-toggle { display: flex; }
    .footer__grid { grid-template-columns: 1fr; gap: 16px; }
    .hero__title { font-size: 28px; }
}