:root {
    --ink: #1b140c;
    --paper: #f4efe4;
    --panel: #fffaf1;
    --line: #d9ccb4;
    --accent: #b8431f;
    --accent-ink: #fffaf1;
    --muted: #6f6456;
    --ok: #2f5d39;
    --in: #2c4c6e;
}
* { box-sizing: border-box; }
html, body { margin: 0; }
body {
    font-family: "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, serif;
    background: var(--paper);
    color: var(--ink);
    min-height: 100vh;
}
code, input, textarea, button {
    font-family: "IBM Plex Mono", "ui-monospace", Menlo, monospace;
}
a { color: var(--accent); }
.eyebrow {
    letter-spacing: 0.18em;
    text-transform: uppercase;
    font-size: 0.72rem;
    color: var(--accent);
    margin: 0 0 0.4rem;
}
h1, h2 { font-weight: 600; letter-spacing: -0.02em; }
h1 { margin: 0; font-size: 1.8rem; }
h2 { margin: 0 0 0.8rem; font-size: 1.1rem; }
.lede, .meta { color: var(--muted); font-size: 0.95rem; }
.auth {
    display: grid;
    place-items: center;
    padding: 2rem 1rem;
}
.auth-card, article, .inbox, .top {
    background: var(--panel);
    border: 1px solid var(--line);
    box-shadow: 6px 6px 0 rgba(27, 20, 12, 0.06);
}
.auth-card { max-width: 28rem; width: 100%; padding: 2rem; }
label { display: block; margin: 1rem 0; font-size: 0.9rem; }
input, textarea, select {
    display: block;
    width: 100%;
    margin-top: 0.35rem;
    padding: 0.65rem 0.7rem;
    border: 1px solid var(--line);
    background: #fff;
    color: var(--ink);
    font-size: 0.95rem;
}
textarea { resize: vertical; }
button {
    margin-top: 0.6rem;
    background: var(--accent);
    color: var(--accent-ink);
    border: 0;
    padding: 0.7rem 1rem;
    cursor: pointer;
    font-size: 0.9rem;
}
button.ghost { background: transparent; color: var(--ink); border: 1px solid var(--line); }
.error { color: var(--accent); font-size: 0.9rem; }
.switch { margin-top: 1.2rem; color: var(--muted); }
.desk { padding: 1.5rem clamp(1rem, 4vw, 3rem) 3rem; }
.top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    padding: 1rem 1.2rem;
    margin-bottom: 1.2rem;
}
.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(16rem, 1fr));
    gap: 1rem;
}
article, .inbox { padding: 1.1rem 1.2rem; }
.inbox { margin-top: 1.2rem; }
.inbox-filters {
    display: grid;
    grid-template-columns: repeat(2, minmax(10rem, 1fr)) auto;
    align-items: end;
    gap: 0.8rem;
}
.inbox-filters label { margin-bottom: 0; }
.plain { padding-left: 1.1rem; }
.thread { border-top: 1px dashed var(--line); padding-top: 0.8rem; margin-top: 0.8rem; }
.thread-page { max-width: 72rem; margin: 0 auto; }
.thread-detail { margin-top: 0; }
.thread-messages { border-top: 1px dashed var(--line); padding-top: 0.8rem; }
.thread-pagination { display: flex; gap: 0.6rem; margin-top: 1rem; }
.msg { margin: 0.35rem 0; padding: 0.5rem 0.6rem; background: #efe6d4; }
.msg span {
    display: inline-block;
    min-width: 4.5rem;
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--muted);
}
.msg.inbound { border-left: 3px solid var(--in); }
.msg.outbound { border-left: 3px solid var(--ok); }
.keyline {
    margin-top: 0.8rem;
    word-break: break-all;
    background: #efe6d4;
    padding: 0.6rem;
}
.presentation-form {
    border-top: 1px dashed var(--line);
    margin-top: 1rem;
    padding-top: 0.2rem;
}
.presentation-choice {
    display: flex;
    align-items: flex-start;
    gap: 0.8rem;
    min-height: 2.5rem;
}
.presentation-preview {
    width: 5rem;
    height: 5rem;
    object-fit: cover;
    border: 1px solid var(--line);
    background: #fff;
}
.presentation-details { margin: 0; }
button:disabled { cursor: not-allowed; opacity: 0.55; }
@media (max-width: 640px) {
    .top { flex-direction: column; align-items: flex-start; }
    .inbox-filters { grid-template-columns: 1fr; }
    h1 { font-size: 1.4rem; }
}