/* xiles.app — shared layout & responsive base (excludes /parked/) */

:root {
    --color-bg: #fff;
    --color-text: #333;
    --color-text-muted: #8c8c8c;
    --color-link: #1174e6;
    --color-header-bg: #1e1e1e;
    --color-header-text: #c8c8c8;
    --color-header-nav: #aaa;
    --color-footer-border: #eee;
    --color-footer-text: #999;
    --color-accent: #106cf8;
    --color-orange: #ff8700;

    --font-sans: -apple-system, BlinkMacSystemFont, 'Helvetica Neue', 'Segoe UI', sans-serif;

    --page-max: 900px;
    --header-h: 60px;
    --space-page-x: 24px;
    --space-page-y: 40px;
    --space-section: 2rem;

    --bp-tablet: 900px;
    --bp-mobile: 600px;
}

@media (prefers-color-scheme: dark) {
    :root {
        --color-bg: #333;
        --color-text: #ccc;
        --color-text-muted: #9a9a9a;
        --color-footer-border: #555;
        --color-footer-text: #888;
    }
}

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

html {
    -webkit-text-size-adjust: 100%;
}

body {
    margin: 0;
    font-family: var(--font-sans);
    font-size: 16px;
    line-height: 1.5;
    color: var(--color-text);
    background-color: var(--color-bg);
    overflow-x: hidden;
}

img,
svg {
    max-width: 100%;
    height: auto;
    vertical-align: middle;
}

a {
    color: var(--color-link);
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

.text-orange {
    color: var(--color-orange);
}

.text-lightgray {
    color: var(--color-text-muted);
}

/* —— Header —— */

header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    height: var(--header-h);
    background-color: var(--color-header-bg);
}

header > div {
    display: flex;
    align-items: center;
    gap: 10px;
    max-width: var(--page-max);
    height: 100%;
    margin: 0 auto;
    padding: 0 var(--space-page-x);
}

header .logo {
    flex-shrink: 0;
    font-size: 0;
    line-height: 0;
}

header .logo img {
    display: block;
    height: 28px;
    width: auto;
}

header .slogan {
    flex: 1 1 auto;
    min-width: 0;
    color: var(--color-header-text);
    font-size: 15px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

header .nav {
    flex-shrink: 0;
    margin-left: auto;
}

header .nav a {
    color: var(--color-header-nav);
    text-decoration: none;
}

header .nav a:hover {
    color: #fff;
    text-decoration: none;
}

/* —— Main —— */

main {
    max-width: var(--page-max);
    margin: 0 auto;
    padding: calc(var(--header-h) + var(--space-page-y)) var(--space-page-x) var(--space-page-y);
}

section {
    margin: var(--space-section) 0;
}

/* Standalone pages (donation, privacy, etc.) */
.page-content h1 {
    margin: 0 0 1.25rem;
    font-size: clamp(2rem, 6vw, 3.125rem);
    font-weight: 400;
    line-height: 1.15;
    color: var(--color-text);
}

.page-prose {
    font-size: 15px;
    line-height: 1.55;
}

.page-prose h1 {
    font-size: clamp(1.5rem, 5vw, 2rem);
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.page-prose h2 {
    font-size: 1.25rem;
    font-weight: 600;
    margin: 2rem 0 0.75rem;
}

.page-prose h3 {
    font-size: 1rem;
    font-weight: 600;
    margin: 1.25rem 0 0.5rem;
}

.page-prose p,
.page-prose ul {
    margin: 0 0 0.875rem;
}

.page-prose ul {
    padding-left: 1.25em;
}

.page-prose li {
    margin-bottom: 0.5rem;
}

.page-prose code {
    font-size: 0.92em;
    word-break: break-word;
}

.page-prose .effective {
    color: var(--color-text-muted);
    font-size: 14px;
    margin-bottom: 1.75rem;
}

.page-prose .back-link {
    margin-top: 2.5rem;
    font-size: 14px;
}

/* —— Footer —— */

footer {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 8px 16px;
    max-width: var(--page-max);
    margin: 4rem auto 2.5rem;
    padding: 12px var(--space-page-x);
    border-top: 1px solid var(--color-footer-border);
    font-size: 12px;
    color: var(--color-footer-text);
}

footer .contact {
    margin-left: auto;
}

footer .contact a {
    color: var(--color-footer-text);
}

footer .contact a:hover {
    color: var(--color-text);
    text-decoration: underline;
}

@media (prefers-color-scheme: dark) {
    footer .contact a:hover {
        color: #eee;
    }
}

/* —— Tablet —— */

@media (max-width: 900px) {
    :root {
        --space-page-x: 20px;
    }
}

/* —— Mobile —— */

@media (max-width: 600px) {
    :root {
        --space-page-x: 16px;
        --space-page-y: 28px;
        --header-h: 52px;
    }

    header .slogan {
        font-size: 13px;
    }

    main {
        padding-top: calc(var(--header-h) + 24px);
    }

    footer {
        flex-direction: column;
        align-items: flex-start;
        margin-top: 2.5rem;
        margin-bottom: 1.5rem;
    }

    footer .contact {
        margin-left: 0;
    }
}

@media (max-width: 380px) {
    header .slogan {
        display: none;
    }
}