/*
 * The tool idiom.
 *
 * The site has two visual languages. /css/prolegomenon.css is the letterpress
 * one -- paper, ink, Georgia, square corners -- and it dresses the prose pages.
 * This is the other: dark, rounded, gradient, for the pages you operate rather
 * than read.
 *
 * These tokens were an inline <style> block inside routes/messenger.tsx, copied
 * by hand into routes/lotto.tsx and drifting from it. Now shared, so a change to
 * the idiom is one edit.
 *
 * Single-theme on purpose. This is one committed visual world, not a page that
 * should follow a system preference, so every colour is stated rather than left
 * to inherit -- there is no prefers-color-scheme block and none is missing.
 */

:root {
  color-scheme: dark;

  --bg: #05070a;
  --panel: #101820;
  --panel-2: #16212b;
  --ink: #eef7f2;
  --muted: #9fb8ad;
  --line: #27433a;
  --green: #65e3ad;
  --blue: #7ca7ff;
  --rose: #ff8fa8;
  --amber: #f0c46a;

  --radius-panel: 24px;
  --radius-field: 14px;
  --radius-pill: 999px;

  --font-ui: ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font: 16px/1.55 var(--font-ui);
  color: var(--ink);
  background:
    radial-gradient(circle at 80% 5%, #133c4f 0, transparent 34rem),
    var(--bg);
}

main {
  width: min(1040px, calc(100% - 2rem));
  margin: 0 auto;
  padding: 3rem 0 5rem;
}

main.wide {
  width: min(1240px, calc(100% - 2rem));
}

/* ------------------------------------------------------------ type and chrome */

.eyebrow {
  color: var(--green);
  letter-spacing: .24em;
  text-transform: uppercase;
  font-weight: 800;
  font-size: .76rem;
  margin: 0;
}

h1 {
  font-size: clamp(2.2rem, 7vw, 4.4rem);
  line-height: .95;
  margin: .5rem 0 1rem;
  text-wrap: balance;
}

h2 {
  font-size: 1.25rem;
  margin: 0 0 .75rem;
}

.lede {
  color: var(--muted);
  max-width: 62ch;
  margin: 0 0 1.5rem;
}

a {
  color: var(--green);
}
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible {
  outline: 2px solid var(--blue);
  outline-offset: 3px;
}

/* --------------------------------------------------------------- panels, grid */

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1rem;
  margin-top: 2rem;
}

section.panel,
.panel {
  background: color-mix(in srgb, var(--panel) 88%, transparent);
  border: 1px solid var(--line);
  border-radius: var(--radius-panel);
  padding: 1.25rem;
  box-shadow: 0 24px 70px rgb(0 0 0 / .35);
}

/* -------------------------------------------------------------------- fields */

label {
  display: block;
  margin: .75rem 0 .25rem;
  color: var(--muted);
  font-size: .78rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: .08em;
}

textarea,
input {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: var(--radius-field);
  background: #071015;
  color: var(--ink);
  padding: .85rem;
  font: 14px var(--font-mono);
}

textarea {
  min-height: 7rem;
  resize: vertical;
}

button,
a.pill {
  display: inline-block;
  margin-top: .9rem;
  border: 0;
  border-radius: var(--radius-pill);
  background: linear-gradient(135deg, var(--green), var(--blue));
  color: #03100b;
  padding: .8rem 1.15rem;
  font-weight: 900;
  cursor: pointer;
  text-decoration: none;
  font-family: var(--font-ui);
}

button[disabled] {
  opacity: .5;
  cursor: not-allowed;
}

button.quiet {
  background: transparent;
  border: 1px solid var(--line);
  color: var(--muted);
  font-weight: 700;
}

output,
pre {
  display: block;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  background: #071015;
  border: 1px solid var(--line);
  border-radius: var(--radius-field);
  padding: 1rem;
  min-height: 3rem;
}

/* ------------------------------------------------------------------- status */

.status {
  min-height: 1.5rem;
  font-size: .88rem;
  color: var(--muted);
  margin: .6rem 0 0;
}

.status.err {
  color: var(--rose);
}
.status.ok {
  color: var(--green);
}

/* ---------------------------------------------------------------- directory */

.people {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1rem;
  margin-top: 2rem;
  padding: 0;
  list-style: none;
}

.person {
  background: color-mix(in srgb, var(--panel) 88%, transparent);
  border: 1px solid var(--line);
  border-radius: var(--radius-panel);
  padding: 1.1rem 1.2rem;
  display: flex;
  flex-direction: column;
  gap: .35rem;
}

.person h3 {
  margin: 0;
  font-size: 1.05rem;
}
.person .handle {
  font-family: var(--font-mono);
  font-size: .82rem;
  color: var(--blue);
}
.person .bio {
  color: var(--muted);
  font-size: .92rem;
  margin: .3rem 0 0;
}
.person .foot {
  margin-top: auto;
  padding-top: .8rem;
}
.person a.pill {
  margin-top: 0;
  font-size: .8rem;
  padding: .55rem .95rem;
}

.closed {
  font-size: .78rem;
  color: var(--muted);
  font-style: italic;
}

/* ------------------------------------------------------------------ threads */

.messenger {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  margin-top: 2rem;
}

@media (min-width: 860px) {
  .messenger {
    grid-template-columns: 300px minmax(0, 1fr);
    align-items: start;
  }
}

.thread-list {
  padding: .5rem;
  display: flex;
  flex-direction: column;
  gap: .25rem;
}

.thread-btn {
  margin: 0;
  width: 100%;
  text-align: left;
  background: transparent;
  border: 1px solid transparent;
  border-radius: var(--radius-field);
  color: var(--ink);
  padding: .75rem .85rem;
  font-weight: 600;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: .5rem;
}

.thread-btn:hover {
  background: var(--panel-2);
}
.thread-btn[aria-current="true"] {
  border-color: var(--green);
  background: var(--panel-2);
}
.thread-btn .who {
  display: flex;
  flex-direction: column;
  gap: .15rem;
  min-width: 0;
}
.thread-btn .sub {
  font-size: .76rem;
  color: var(--muted);
  font-weight: 500;
}

.badge {
  flex: none;
  background: var(--green);
  color: #03100b;
  border-radius: var(--radius-pill);
  font-size: .7rem;
  font-weight: 900;
  padding: .1rem .45rem;
  font-variant-numeric: tabular-nums;
}

/* -------------------------------------------------------------- conversation */

.convo {
  display: flex;
  flex-direction: column;
  min-height: 22rem;
}

.log {
  display: flex;
  flex-direction: column;
  gap: .6rem;
  padding: .5rem 0 1rem;
  overflow-y: auto;
  max-height: 55vh;
}

/*
 * The log takes focus so it can be scrolled from the keyboard (see the note on
 * tabIndex in routes/messages.tsx). A focusable element with no focus style is
 * the worse half of the bargain -- the keyboard user can now reach a thing they
 * cannot see they have reached -- so it gets a visible ring. :focus-visible, so
 * a pointer click on a message does not draw one.
 */
.log:focus-visible {
  outline: 2px solid var(--blue, #2563eb);
  outline-offset: 2px;
}

.msg {
  max-width: 42ch;
  padding: .6rem .85rem;
  border-radius: var(--radius-field);
  background: var(--panel-2);
  border: 1px solid var(--line);
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}

.msg.mine {
  align-self: flex-end;
  background: linear-gradient(135deg, color-mix(in srgb, var(--green) 22%, transparent), color-mix(in srgb, var(--blue)
    22%, transparent));
  border-color: color-mix(in srgb, var(--green) 40%, transparent);
}

.msg .when {
  display: block;
  margin-top: .3rem;
  font-size: .7rem;
  color: var(--muted);
  font-variant-numeric: tabular-nums;
}

.msg.unreadable {
  color: var(--amber);
  font-style: italic;
}

.composer {
  display: flex;
  flex-direction: column;
  gap: 0;
  border-top: 1px solid var(--line);
  padding-top: .75rem;
}
.composer textarea {
  min-height: 4.5rem;
}
.composer .row {
  display: flex;
  gap: .6rem;
  align-items: center;
}
.composer button {
  margin-top: .6rem;
}

.empty {
  color: var(--muted);
  padding: 2rem 1rem;
  text-align: center;
}

@media (prefers-reduced-motion: reduce) {
  * {
    transition: none !important;
    animation: none !important;
  }
}