@import url('https://fonts.googleapis.com/css2?family=Pixelify+Sans:wght@400;600;700&display=swap');

:root {
    /* Teal Theme (Default Retro) */
    --bg-color: #008080;
    --window-bg: #c0c0c0;
    --window-border-light: #ffffff;
    --window-border-dark: #000000;
    --window-border-shadow: #808080;
    --window-border-highlight: #dfdfdf;
    --title-bg: #000080;
    --title-bg-grad: linear-gradient(90deg, #000080, #1084d0);
    --title-text: #ffffff;
    --text-color: #000000;
    --btn-bg: #c0c0c0;
}

[data-theme="silver"] {
    --bg-color: #4d4d4d;
    --window-bg: #e0e0e0;
    --title-bg: #696969;
    --title-bg-grad: linear-gradient(90deg, #696969, #a9a9a9);
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    background-color: var(--bg-color);
    color: var(--text-color);
    font-family: 'Pixelify Sans', 'Courier New', monospace;
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 2rem 1rem;
    position: relative;
    overflow-x: hidden;
}

/* CRT Scanline Overlay */
body::after {
    content: " ";
    display: block;
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    right: 0;
    background: linear-gradient(rgba(18, 16, 16, 0) 50%, rgba(0, 0, 0, 0.1) 50%), linear-gradient(90deg, rgba(255, 0, 0, 0.06), rgba(0, 255, 0, 0.02), rgba(0, 0, 255, 0.06));
    z-index: 999;
    background-size: 100% 2px, 3px 100%;
    pointer-events: none;
}

.window {
    background-color: var(--window-bg);
    border-top: 2px solid var(--window-border-light);
    border-left: 2px solid var(--window-border-light);
    border-right: 2px solid var(--window-border-dark);
    border-bottom: 2px solid var(--window-border-dark);
    box-shadow: inset -1px -1px var(--window-border-shadow), inset 1px 1px var(--window-border-highlight), 4px 4px 0 rgba(0,0,0,0.2);
    width: 100%;
    max-width: 800px;
    margin-bottom: 2rem;
    animation: openWindow 0.4s ease-out;
}

@keyframes openWindow {
    0% { transform: scale(0.95); opacity: 0; }
    100% { transform: scale(1); opacity: 1; }
}

.title-bar {
    background: var(--title-bg-grad);
    color: var(--title-text);
    padding: 0.3rem 0.5rem;
    font-weight: 600;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 1.1rem;
    letter-spacing: 1px;
}

.title-bar > span {
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.title-bar-controls {
    display: flex;
    gap: 4px;
}

.title-bar-actions {
    display: flex;
    flex: 0 0 auto;
    gap: 0.65rem;
    align-items: center;
}

.master-site-link {
    padding: 0.05rem 0.4rem;
    color: var(--title-text);
    border: 1px dotted var(--title-text);
    font-size: 0.8rem;
    line-height: 1.25;
    letter-spacing: 0.08em;
    text-decoration: none;
}

.master-site-link:hover,
.master-site-link:focus-visible {
    color: var(--title-bg);
    background: var(--title-text);
    outline: none;
}

.title-btn {
    width: 20px;
    height: 20px;
    background: var(--btn-bg);
    border-top: 2px solid var(--window-border-light);
    border-left: 2px solid var(--window-border-light);
    border-right: 2px solid var(--window-border-dark);
    border-bottom: 2px solid var(--window-border-dark);
    box-shadow: inset -1px -1px var(--window-border-shadow);
    font-family: Arial, sans-serif;
    font-weight: bold;
    font-size: 12px;
    line-height: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #000;
    cursor: pointer;
}

.title-btn:active {
    border-top: 2px solid var(--window-border-dark);
    border-left: 2px solid var(--window-border-dark);
    border-right: 2px solid var(--window-border-light);
    border-bottom: 2px solid var(--window-border-light);
    box-shadow: inset 1px 1px var(--window-border-shadow);
    padding-top: 2px;
    padding-left: 2px;
}

.window-content {
    padding: 1.5rem;
}

nav {
    display: flex;
    gap: 1rem;
    margin-bottom: 1.5rem;
    border-bottom: 2px groove var(--window-border-light);
    padding-bottom: 1rem;
}

nav a {
    color: var(--text-color);
    text-decoration: none;
    font-weight: 600;
    padding: 0.2rem 0.5rem;
    border: 1px dotted transparent;
}

nav a:hover, nav a.active {
    border: 1px dotted var(--text-color);
}

.hero {
    text-align: center;
    padding: 2rem 0;
    border: 2px inset var(--window-border-light);
    background: #fff;
    margin-bottom: 1.5rem;
}

.hero h1 {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
    text-shadow: 2px 2px 0px var(--window-border-shadow);
}

.app-icon {
    display: block;
    width: 128px;
    height: 128px;
    margin: 0 auto 0.75rem;
}

.paint-alternative {
    margin-bottom: 1.5rem;
    padding: 1.25rem;
    background: var(--window-bg);
    border: 2px groove var(--window-border-light);
}

.paint-alternative-heading {
    display: flex;
    gap: 1rem;
    align-items: flex-start;
}

.paint-alternative-heading h2 {
    margin-bottom: 0.35rem;
}

.help-icon {
    display: grid;
    flex: 0 0 auto;
    width: 2.5rem;
    height: 2.5rem;
    place-items: center;
    color: #fff;
    background: var(--title-bg);
    border-top: 2px solid var(--window-border-light);
    border-left: 2px solid var(--window-border-light);
    border-right: 2px solid var(--window-border-dark);
    border-bottom: 2px solid var(--window-border-dark);
    font-size: 1.5rem;
    font-weight: 700;
}

.faq-list {
    display: grid;
    gap: 0.75rem;
    margin-top: 1rem;
}

.faq-list article {
    padding: 0.85rem 1rem;
    background: #fff;
    border: 2px inset var(--window-border-light);
}

.faq-list h3 {
    margin-bottom: 0.25rem;
    font-size: 1.05rem;
}

.affiliation-notice {
    margin-top: 1rem;
    padding-top: 0.75rem;
    border-top: 1px dashed var(--window-border-shadow);
    color: #333;
    font-size: 0.85rem;
}

.app-preview {
    width: 100%;
    min-width: 0;
    margin-bottom: 1.5rem;
}

.app-preview h2 {
    margin-bottom: 0.75rem;
}

.app-preview figure {
    width: 100%;
    max-width: 100%;
    overflow: hidden;
    padding: 0.5rem;
    background: #000;
    border-top: 2px solid var(--window-border-shadow);
    border-left: 2px solid var(--window-border-shadow);
    border-right: 2px solid var(--window-border-light);
    border-bottom: 2px solid var(--window-border-light);
}

.app-preview a {
    display: block;
    width: 100%;
    max-width: 100%;
}

.app-preview-image {
    display: block;
    width: 100%;
    max-width: 100%;
    height: auto;
    aspect-ratio: 1200 / 973;
    object-fit: contain;
}

.app-preview figcaption {
    padding: 0.65rem 0.5rem 0.15rem;
    color: #fff;
    font-size: 0.9rem;
    text-align: center;
}

.hero p {
    font-size: 1.2rem;
    color: #555;
}

.about {
    margin-bottom: 1.5rem;
    padding: 1.25rem;
    background: #fff;
    border: 2px inset var(--window-border-light);
}

.about h2,
.about h3 {
    margin-bottom: 0.5rem;
}

.about h3 {
    margin-top: 1.25rem;
    font-size: 1.1rem;
}

.app-facts {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1px;
    padding: 1px;
    background: var(--window-border-shadow);
}

.app-facts div {
    padding: 0.75rem;
    background: var(--window-bg);
}

.app-facts dt {
    font-weight: 700;
}

.app-facts dd {
    margin-top: 0.15rem;
}

.app-store-cta {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-top: 1.25rem;
}

.app-store-button {
    position: relative;
    display: grid;
    grid-template-columns: 3rem 1fr;
    gap: 0.8rem;
    align-items: center;
    width: min(100%, 21rem);
    min-height: 5rem;
    padding: 0.65rem 1rem;
    background: #050505;
    color: #fff;
    text-decoration: none;
    border-top: 2px solid var(--window-border-light);
    border-left: 2px solid var(--window-border-light);
    border-right: 2px solid var(--window-border-dark);
    border-bottom: 2px solid var(--window-border-dark);
    box-shadow:
        inset -3px -3px #333,
        inset 3px 3px #777,
        4px 4px 0 var(--window-border-shadow);
    cursor: pointer;
    text-align: left;
    transition: transform 0.1s, background-color 0.1s;
}

.app-store-button::after {
    content: "";
    position: absolute;
    inset: 0.35rem;
    border: 1px dotted #777;
    pointer-events: none;
}

.app-store-button:hover,
.app-store-button:focus-visible {
    background: var(--title-bg);
    outline: 2px dotted var(--text-color);
    outline-offset: 4px;
}

.app-store-button:active {
    border-top: 2px solid var(--window-border-dark);
    border-left: 2px solid var(--window-border-dark);
    border-right: 2px solid var(--window-border-light);
    border-bottom: 2px solid var(--window-border-light);
    box-shadow: inset 3px 3px #222;
    transform: translate(3px, 3px);
}

.app-store-glyph {
    font-family: -apple-system, BlinkMacSystemFont, sans-serif;
    font-size: 2.8rem;
    line-height: 1;
    text-align: center;
}

.app-store-copy {
    display: flex;
    min-width: 0;
    flex-direction: column;
    line-height: 1;
}

.app-store-kicker {
    margin-bottom: 0.25rem;
    font-size: 0.9rem;
    letter-spacing: 0.04em;
}

.app-store-name {
    font-size: clamp(1.35rem, 5vw, 1.85rem);
    font-weight: 700;
    white-space: nowrap;
}

.app-store-meta {
    margin-top: 0.8rem;
    color: #555;
    font-size: 0.95rem;
}

.section-title {
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--window-border-shadow);
}

.features {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

.feature-box {
    padding: 1rem;
    border: 2px groove var(--window-border-light);
    background: var(--window-bg);
}

.feature-box h3 {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.footer-bar {
    text-align: center;
    padding: 1rem;
    font-size: 0.9rem;
    color: #333;
    border-top: 2px groove var(--window-border-light);
    margin-top: 2rem;
}

.footer-bar a,
.contact-list a {
    color: inherit;
}

.footer-bar a:hover,
.footer-bar a:focus-visible,
.contact-list a:hover,
.contact-list a:focus-visible {
    color: var(--title-bg);
}

.lang-selector {
    float: right;
    display: flex;
    gap: 0.5rem;
}

.lang-selector a {
    text-decoration: none;
    color: var(--title-text);
    background: var(--title-bg);
    padding: 0 0.3rem;
    border: 1px solid var(--window-border-light);
    font-size: 0.9rem;
}

.lang-selector a:hover {
    background: var(--window-border-highlight);
    color: var(--text-color);
}

.lang-selector a[aria-current="true"] {
    outline: 1px dotted var(--title-text);
    outline-offset: -3px;
}

.privacy-content {
    overflow-y: auto;
    max-height: 60vh;
    padding: 1.5rem;
    color: #000;
    background: #fff;
    border: 2px inset var(--window-border-light);
    font-family: 'Courier New', Courier, monospace;
}

.privacy-content h2 {
    margin-top: 1.5rem;
    margin-bottom: 0.5rem;
    padding-bottom: 0.2rem;
    border-bottom: 1px dashed #ccc;
    font-size: 1.2rem;
}

.privacy-content p {
    margin-bottom: 1rem;
    line-height: 1.5;
}

.contact-list {
    margin: 1.5rem 0 1.5rem 1.5rem;
    list-style-type: square;
}

@media (max-width: 600px) {
    .features,
    .app-facts {
        grid-template-columns: 1fr;
    }

    .hero h1 {
        font-size: 2rem;
    }

    .app-store-button {
        grid-template-columns: 2.4rem 1fr;
        gap: 0.55rem;
        min-height: 4.5rem;
        padding: 0.6rem 0.7rem;
    }

    .app-store-glyph {
        font-size: 2.3rem;
    }

    .app-store-name {
        font-size: 1.25rem;
    }

    .title-bar {
        font-size: 0.85rem;
        letter-spacing: 0;
    }

    .master-site-link {
        font-size: 0.7rem;
    }

    .title-bar-controls .title-btn[aria-hidden="true"] {
        display: none;
    }
}