/* Oldworld — site stylesheet
   Dark gray + amber. Plain by intent: flat surfaces, no gradients. */

:root {
    --page:   #1a1a1a;
    --card:   #2a2a2a;
    --slab:   #333;
    --line:   #444;
    --text:   #e0e0e0;
    --muted:  #a8a8a8;
    --accent: #e0b53c;
    --accent-hi: #f0ca63;
    --accent-lo: #c79a24;
    --neutral: #4a4a4a;

    --sans: "Segoe UI", Candara, Calibri, Optima, system-ui, Arial, sans-serif;
    --mono: Consolas, Menlo, monaco, monospace;
    --serif: "Times New Roman", Times, Georgia, serif;
}

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

html, body, button, input, select, textarea { color: var(--text); }

body {
    margin: 0;
    background-color: var(--page);
    font-family: var(--sans);
    font-size: 0.95em;
    line-height: 1.5;
}

::selection { background: var(--accent); color: #1a1a1a; }

a { color: var(--accent); }
a:hover { color: var(--accent-hi); }

img { vertical-align: middle; max-width: 100%; }

/* ---- Card ---- */

.container {
    position: relative;
    max-width: 1000px;
    margin: 2em auto;
    padding-bottom: 2em;
    background-color: var(--card);
    border: 1px solid #363636;
    box-shadow: 0 0 8px 3px #000;
}

/* Thin amber rails down both edges of the card, fading out top and bottom so
   they frame the content without boxing it in. */
.container::before,
.container::after {
    content: "";
    position: absolute;
    top: 0;
    bottom: 0;
    width: 2px;
    opacity: 0.55;
    pointer-events: none;
    background: linear-gradient(180deg,
        transparent 0%, var(--accent) 10%, var(--accent) 90%, transparent 100%);
}
.container::before { left: -1px; }
.container::after  { right: -1px; }

main { padding: 0 6%; }

/* ---- Header ---- */

header {
    padding: 3em 6% 2.5em;
    text-align: center;
}

#logo {
    width: 240px;
    height: auto;
}

h1 {
    margin: 0.7em 0 0;
    color: var(--accent);
    font-weight: normal;
    font-size: 1.9em;
    letter-spacing: 0.12em;
}

#pitch {
    margin: 0.5em 0 0;
    color: var(--muted);
    font-style: italic;
    font-size: 0.95em;
}

#version {
    margin: 0.9em 0 0;
    color: var(--muted);
    font-family: var(--mono);
    font-size: 0.85em;
    letter-spacing: 0.1em;
}

/* ---- Nav ---- */

#nav {
    margin-top: 1.8em;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.4em 1.6em;
}
#nav a {
    color: var(--muted);
    text-decoration: none;
    font-size: 0.88em;
    letter-spacing: 0.08em;
    padding-bottom: 2px;
    border-bottom: 1px solid transparent;
}
#nav a:hover { color: var(--accent); border-bottom-color: var(--accent); }

html { scroll-behavior: smooth; }
:target { scroll-margin-top: 1em; }

/* ---- Typography ---- */

h2 {
    margin: 1.5em auto 2em;
    padding: 0 1em;
    max-width: 44em;
    color: #d0d0d0;
    text-align: center;
    font-weight: 300;
    font-style: italic;
    font-size: 1.15em;
    line-height: 1.6;
}
h2::before, h2::after {
    display: block;
    margin: 0.9em auto;
    width: 50%;
    height: 1px;
    background-color: var(--line);
    content: "";
}

h3 {
    margin: 2.3em 0 1.2em;
    padding: 8px;
    background-color: var(--slab);
    color: var(--text);
    text-indent: 0.2em;
    letter-spacing: 0.14em;
    font-family: var(--serif);
    font-weight: normal;
    font-size: 1.45em;
}

h4 {
    margin: 1.6em 0 0.5em;
    color: #d0d0d0;
    text-indent: 2px;
    letter-spacing: 0.06em;
    font-family: var(--serif);
    font-size: 1.15em;
    font-weight: 700;
    text-rendering: optimizeLegibility;
}

p { margin: 0 0 1em; }
.muted { color: var(--muted); }
.hl { color: var(--accent); font-style: normal; }

code {
    padding: 1px 4px;
    border-radius: 2px;
    background-color: #3a3a3a;
    color: var(--accent);
    font-family: var(--mono);
    font-size: 0.9em;
}

/* ---- AI disclosure ---- */

.disclosure {
    margin: 0 auto 2.5em;
    padding: 1em 1.2em;
    max-width: 44em;
    border-left: 3px solid var(--accent);
    background-color: #2f2a1e;
    color: #cfcabd;
    font-size: 0.9em;
    line-height: 1.55;
}
.disclosure strong { color: var(--accent); }

/* ---- Columns ---- */

.features, .two-col {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0 2.5em;
}
.two-col { grid-template-columns: repeat(2, 1fr); }
.features h4 { margin-top: 0; }
.features p { color: var(--muted); }

/* ---- Buttons ---- */

.btn {
    display: block;
    padding: 12px 0;
    width: 100%;
    border: 1px solid var(--line);
    border-radius: 4px;
    background-color: var(--neutral);
    color: var(--text);
    text-align: center;
    text-decoration: none;
    font-size: 0.98em;
    transition: background-color 0.3s;
}
.btn-primary {
    border-color: var(--accent-lo);
    background-color: var(--accent);
    color: #1a1a1a;
    font-weight: 600;
    cursor: pointer;
}
.btn-primary:hover { background-color: var(--accent-hi); color: #1a1a1a; }
.btn-primary:active { background-color: var(--accent-lo); }
.btn-secondary:hover { background-color: #555; }


.btn.is-disabled {
    border-style: dashed;
    background-color: var(--neutral);
    color: var(--muted);
    cursor: not-allowed;
}
.btn.is-disabled:hover { background-color: var(--neutral); color: var(--muted); }

/* ---- Download ---- */

.download {
    margin: 0 auto;
    max-width: 44em;
    text-align: center;
}
.download .latest { margin-bottom: 0.3em; font-weight: 700; font-size: 1.1em; }
.download .note { margin-bottom: 1.2em; font-size: 0.9em; }
.download .buttons { display: grid; grid-template-columns: 1fr 1fr; gap: 1.4em; max-width: 40em; margin: 0 auto; }
.download .dl small { margin-top: 0.7em; line-height: 1.45; }
.download small { display: block; margin-top: 0.6em; color: var(--muted); }
.download .source-dl { margin: 1.4em 0 0; font-size: 0.9em; }
.download .install { margin-top: 2em; text-align: left; }
.download .install ol { margin: 0; padding-left: 1.4em; }
.download .install li { margin-bottom: 0.4em; }

/* ---- Table ---- */

.table-wrap { overflow-x: auto; }

table { width: 100%; border-collapse: collapse; font-size: 0.92em; }
th, td {
    padding: 7px 10px;
    border-bottom: 1px solid var(--line);
    text-align: left;
    vertical-align: top;
}
th {
    color: var(--muted);
    font-weight: 600;
    font-size: 0.85em;
    letter-spacing: 0.08em;
    white-space: nowrap;
}
td:first-child { white-space: nowrap; }

/* ---- Lists ---- */

ul.plain, ul.log { padding-left: 1.2em; }
ul.plain li, ul.log li { margin-bottom: 0.5em; }
.log .result { color: var(--muted); }

/* ---- Footer ---- */

footer {
    margin-top: 3em;
    padding: 1.5em 6% 0;
    border-top: 1px solid var(--line);
    color: #b0b0b0;
    text-align: center;
    font-size: small;
}
footer p { margin: 0.4em 0; }

/* ---- Responsive ---- */

@media (max-width: 860px) {
    .features, .two-col, .download .buttons { grid-template-columns: 1fr; }
    .features, .two-col { gap: 0; }
}

@media (max-width: 768px) {
    .container { margin: 0 auto; box-shadow: none; }
}

@media (max-width: 560px) {
    body { font-size: 0.9em; }
    main { padding: 0 5%; }
    #logo { width: 190px; }
    h1 { font-size: 1.5em; }
    h3 { letter-spacing: 0.1em; font-size: 1.28em; }
}