/* ============================================================
 * Alcedo Trading — site styles
 * Built strictly on the Alcedo design rules + tokens.css.
 * Terminal-document layout. Stillness as luxury.
 * ============================================================ */

/* ============================================================
 * ACCENT — Alcedo Trading's accent hue is a muted purple.
 * The foundation is unchanged (deep stage, cream text, mono,
 * square corners, hairlines); only the accent hue differs.
 * Signal green / loss red semantics are unchanged, and the
 * sparse-accent rule still applies: it marks the one thing
 * that matters on a surface.
 *
 * The token files store the accent role in the --amber* slots
 * and utilities.css reads those directly, so the slots are
 * re-pointed here rather than forking the token files.
 * ============================================================ */
:root {
  --accent-base: #9880CE;   /* brand / focus / selection / brackets */
  --accent-soft: #B49FE0;
  --accent-deep: #71589F;

  --amber: var(--accent-base);
  --amber-soft: var(--accent-soft);
  --amber-deep: var(--accent-deep);
  --amber-wash: rgba(152, 128, 206, 0.06);
  --amber-wash-strong: rgba(152, 128, 206, 0.12);
  --glow-amber: 0 0 8px rgba(152, 128, 206, 0.55);

  --accent: var(--accent-base);
  --accent-hover: var(--accent-soft);
  --accent-press: var(--accent-deep);
  --status-watch: var(--accent-base);
  --focus-ring: var(--accent-base);
}

/* --- Reset ------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body, h1, h2, p, figure, figcaption, dl, dt, dd { margin: 0; padding: 0; }
img, svg { display: block; max-width: 100%; }

/* --- Stage ------------------------------------------------- */
html { background: var(--bg-deep); }
body {
  min-height: 100%;
  overflow-x: hidden;
  font-family: var(--font-mono);
  font-size: var(--fs-body);
  font-weight: var(--fw-regular);
  line-height: var(--lh-body);
  letter-spacing: var(--ls-body);
  color: var(--text);
  /* signature 32px grid over the deep stage (see .alc-grid) */
  background-color: var(--bg-deep);
  background-image:
    linear-gradient(var(--grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid) 1px, transparent 1px);
  background-size: var(--grid-size) var(--grid-size);
}

::selection { background: var(--amber-wash-strong); color: var(--text); }

/* Corner brackets: the token author's softer knob, not the full accent. */
.alc-brackets::before,
.alc-brackets::after,
.alc-brackets > .alc-br-bl,
.alc-brackets > .alc-br-br { border-color: var(--bracket); }

/* --- Shell ------------------------------------------------- */
.shell {
  width: 100%;
  max-width: 1120px;
  margin-inline: auto;
  padding-inline: var(--space-6);
}

/* --- Shared type helpers ----------------------------------- */
.label {
  font-size: var(--fs-label);
  line-height: 1.4;
  text-transform: uppercase;
  letter-spacing: var(--ls-label);
  color: var(--text-mute);
}
.micro {
  /* DESIGN_RULES §2: labels never go below 11px. --text-faint is
   * a punctuation/disabled colour and is not legible as a label. */
  font-size: var(--fs-label);
  text-transform: uppercase;
  letter-spacing: var(--ls-label);
  color: var(--text-mute);
}
.prompt { color: var(--accent); }
.species { color: var(--accent); }

a { color: inherit; text-decoration: none; }
:focus-visible { outline: var(--bw-accent) solid var(--accent); outline-offset: 3px; }

/* --- Top chrome -------------------------------------------- */
.chrome {
  border-bottom: var(--bw-hair) solid var(--border-soft);
  background: rgba(11, 13, 17, 0.6);
}
.chrome-in {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  min-height: 46px;
  padding-block: var(--space-3);
}
.crumb {
  font-size: var(--fs-caption);
  letter-spacing: 0.04em;
  color: var(--text-mute);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.crumb b { font-weight: var(--fw-regular); color: var(--text-dim); }
.status {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  white-space: nowrap;
}
.status .alc-dot { width: 7px; height: 7px; }

/* --- Hero panel -------------------------------------------- */
.hero {
  margin-top: var(--space-12);
  border: var(--bw-hair) solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg-card);
}
.hero-brand { padding: var(--space-14) var(--space-10) var(--space-12); }
/* the lockup: kingfisher + wordmark read as one mark */
.lockup {
  display: flex;
  align-items: center;
  gap: clamp(16px, 2.2vw, 32px);
}
.hero-mark {
  /* alcedo-mark.svg (perched): DESIGN_RULES reserves the bare glyph for
   * sizes under ~24px. Its artwork starts 10% in from the viewBox edge,
   * so pull it back by that much to optically align with the copy below. */
  --mark-w: clamp(112px, 13.5vw, 184px);
  flex: 0 0 auto;
  width: var(--mark-w);
  margin-left: calc(var(--mark-w) * -0.1);
  height: auto;
  opacity: 0.95;
}
.wordmark {
  font-family: var(--font-mono);
  font-weight: var(--fw-medium);
  font-size: clamp(30px, 6.2vw, 56px);
  line-height: var(--lh-tight);
  letter-spacing: var(--ls-wordmark);
  color: var(--text);
}
.thesis {
  max-width: 48ch;
  text-wrap: balance;
  margin-top: var(--space-6);
  font-size: clamp(15px, 1.6vw, 18px);
  line-height: var(--lh-snug);
  letter-spacing: var(--ls-display);
  color: var(--text-dim);
}
.thesis em { font-style: normal; color: var(--text); }
.tagline {
  margin-top: var(--space-8);
  font-size: var(--fs-body);
  letter-spacing: 0.02em;
  color: var(--text-dim);
}
.tagline .prompt { margin-right: var(--space-2); }

/* --- The instrument (bespoke composition) ------------------ */
.instrument {
  border-top: var(--bw-hair) dashed var(--border);
  padding: var(--space-6) var(--space-10) var(--space-8);
  background: var(--bg-sunk);
}
.inst-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--space-4);
  margin-bottom: var(--space-5);
}
.inst-stage {
  position: relative;
  height: clamp(132px, 19vw, 236px);
  border-left: var(--bw-hair) solid var(--border);
  border-bottom: var(--bw-hair) solid var(--border);
}
/* unlabelled horizontal guides — no scale, no values */
.inst-guides {
  position: absolute;
  inset: 0;
  background-image: linear-gradient(180deg, var(--border-soft) 1px, transparent 1px);
  background-size: 100% 25%;
  pointer-events: none;
}
/* unlabelled ticks on the axes */
.inst-ticks-x {
  position: absolute;
  left: 0; right: 0; bottom: -1px;
  height: 5px;
  background-image: linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 3.125% 100%;
  pointer-events: none;
}
.inst-ticks-y {
  position: absolute;
  left: -1px; top: 0; bottom: 0;
  width: 5px;
  background-image: linear-gradient(180deg, var(--border) 1px, transparent 1px);
  background-size: 100% 12.5%;
  pointer-events: none;
}
.inst-trace {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}
.inst-trace path {
  fill: none;
  stroke: var(--text-mute);
  stroke-width: 1.25;
  stroke-linejoin: round;
  stroke-linecap: round;
  vector-effect: non-scaling-stroke;
}
/* zone divider — where watching begins */
.inst-div {
  position: absolute;
  top: 0; bottom: 0;
  left: 36.67%;
  border-left: var(--bw-hair) dashed var(--border);
  pointer-events: none;
}
/* the strike — the one accent moment on this surface */
.inst-strike {
  position: absolute;
  top: -6px; bottom: 0;
  left: 76%;
  width: 0;
  border-left: var(--bw-hair) solid var(--accent);
  pointer-events: none;
}
.inst-strike::before {
  content: "";
  position: absolute;
  top: -5px;
  left: -3.5px;
  width: 7px;
  height: 7px;
  border-radius: var(--radius-pill);
  background: var(--accent);
  box-shadow: var(--glow-amber);
}
/* legend, column-aligned to the zones so it can never overflow */
.inst-legend {
  display: grid;
  grid-template-columns: 36.67% 39.33% 24%;
  margin-top: var(--space-3);
}
.inst-legend span {
  font-size: var(--fs-label);
  text-transform: uppercase;
  letter-spacing: var(--ls-label);
  color: var(--text-mute);
  white-space: nowrap;
}
.inst-legend span:nth-child(3) { text-align: right; color: var(--accent); }
.inst-foot {
  display: flex;
  justify-content: flex-end;
  text-align: right;
  margin-top: var(--space-5);
}

/* --- Section ----------------------------------------------- */
.section { margin-top: var(--space-16); }
.sec-head {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  margin-bottom: var(--space-6);
}
.sec-head h2 {
  font-family: var(--font-mono);
  font-weight: var(--fw-medium);
  font-size: clamp(18px, 2.2vw, 22px);
  line-height: var(--lh-tight);
  letter-spacing: var(--ls-display);
  color: var(--text);
  white-space: nowrap;
}
.sec-head h2 .prompt { margin-right: var(--space-2); }
.sec-rule {
  flex: 1 1 auto;
  min-width: var(--space-6);
  border-top: var(--bw-hair) dashed var(--border);
}

/* --- Method panel ------------------------------------------
 * Two bands, echoing the hero's anatomy: a quadrant grid of the
 * four rules over a sunken signature band.
 * ----------------------------------------------------------- */
.panel {
  border: var(--bw-hair) solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg-card);
}

.quad {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}
.q { padding: var(--space-12) var(--space-10); }
.q:nth-child(2n) { border-left: var(--bw-hair) solid var(--border-soft); }
.q:nth-child(n + 3) { border-top: var(--bw-hair) solid var(--border-soft); }

.q-head {
  font-size: var(--fs-label);
  line-height: 1.4;
  text-transform: uppercase;
  letter-spacing: var(--ls-label);
  color: var(--text-mute);
}
.q-idx { margin-right: var(--space-3); color: var(--text-faint); }
.q dd {
  margin-top: var(--space-5);
  max-width: 40ch;
  font-size: var(--fs-body-lg);
  line-height: var(--lh-snug);
  letter-spacing: var(--ls-body);
  color: var(--text);
}

.signature {
  display: flex;
  align-items: center;
  gap: var(--space-8);
  padding: var(--space-8) var(--space-10);
  border-top: var(--bw-hair) dashed var(--border);
  background: var(--bg-sunk);
}
.signature img { width: 116px; flex: 0 0 auto; opacity: 0.9; }
.signature figcaption {
  flex: 1 1 auto;
  max-width: 56ch;
  font-size: var(--fs-caption);
  line-height: var(--lh-body);
  color: var(--text-mute);
}
.signature figcaption em { font-style: italic; color: var(--text-dim); }
.signature .micro { flex: 0 0 auto; margin-left: auto; text-align: right; }

/* --- Contact form ------------------------------------------ */
.form-panel { padding: clamp(24px, 3.6vw, 40px); }
.form { display: grid; gap: var(--space-6); }
.field-row {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-6);
}
.field { display: grid; gap: var(--space-2); }

.form input[type="text"],
.form input[type="email"],
.form textarea {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  font-family: var(--font-mono);
  font-size: var(--fs-body);
  line-height: 1.5;
  letter-spacing: var(--ls-body);
  color: var(--text);
  background: var(--bg-deep);
  border: var(--bw-hair) solid var(--border);
  border-radius: var(--radius-sm);
  transition: border-color var(--dur) var(--ease);
}
.form textarea { min-height: 112px; resize: vertical; }
/* Brand canon: focus turns the border accent — no glow ring. */
.form input:focus,
.form textarea:focus { border-color: var(--accent); outline: none; }
.form input:focus-visible,
.form textarea:focus-visible { outline: none; }

.btn {
  justify-self: end;
  padding: var(--space-3) var(--space-6);
  font-family: var(--font-mono);
  font-size: var(--fs-label);
  text-transform: uppercase;
  letter-spacing: var(--ls-label);
  color: var(--accent);
  background: var(--amber-wash);
  border: var(--bw-hair) solid var(--accent);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background-color var(--dur) var(--ease), color var(--dur) var(--ease),
    border-color var(--dur) var(--ease);
}
.btn:hover { background: var(--amber-wash-strong); }
.btn[disabled] {
  color: var(--text-mute);
  background: transparent;
  border-color: var(--border);
  cursor: default;
}

.form-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  flex-wrap: wrap;
  padding-top: var(--space-2);
}
.form-status {
  min-height: 1.2em;
  font-size: var(--fs-caption);
  color: var(--text-dim);
}
.form-status.is-ok { color: var(--green); }
.form-status.is-error { color: var(--red); }

/* honeypot — visually hidden, out of the tab order, still fillable by bots */
.trap {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}

/* --- Footer ------------------------------------------------ */
.foot {
  margin-top: var(--space-14);
  margin-bottom: var(--space-12);
  padding-top: var(--space-5);
  border-top: var(--bw-hair) dashed var(--border);
}
.foot .copy { font-size: var(--fs-caption); color: var(--text-mute); }

/* --- 404 --------------------------------------------------- */
.lost {
  margin-top: var(--space-16);
  padding: var(--space-14) var(--space-10);
  border: var(--bw-hair) solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg-card);
}
.lost h1 {
  font-family: var(--font-mono);
  font-weight: var(--fw-medium);
  font-size: clamp(24px, 4vw, 32px);
  letter-spacing: var(--ls-display);
  color: var(--text);
}
.lost p { margin-top: var(--space-5); max-width: 52ch; font-size: var(--fs-body); color: var(--text-dim); }
.lost .back {
  display: inline-block;
  margin-top: var(--space-8);
  font-size: var(--fs-body);
  color: var(--text-dim);
  transition: color var(--dur) var(--ease);
}
.lost .back:hover { color: var(--accent); }

/* ============================================================
 * Responsive
 * ============================================================ */
@media (max-width: 900px) {
  .q { padding: var(--space-10) var(--space-8); }
  .signature { padding: var(--space-6) var(--space-8); gap: var(--space-6); }
  .signature img { width: 96px; }
}

@media (max-width: 760px) {
  .field-row { grid-template-columns: minmax(0, 1fr); gap: var(--space-5); }
  .hero-brand { padding: var(--space-12) var(--space-6) var(--space-10); }
  .instrument { padding: var(--space-5) var(--space-6) var(--space-6); }
  .section { margin-top: var(--space-14); }
  .quad { grid-template-columns: minmax(0, 1fr); }
  .q { padding: var(--space-8) var(--space-6); }
  .q:nth-child(2n) { border-left: 0; }
  .q:nth-child(n + 2) { border-top: var(--bw-hair) solid var(--border-soft); }
  .q dd { max-width: none; }
  .signature {
    flex-wrap: wrap;
    align-items: flex-start;
    gap: var(--space-5);
    padding: var(--space-6);
  }
  .signature figcaption { flex: 1 1 220px; }
  .signature .micro { flex: 1 1 100%; text-align: left; }
  .lost { padding: var(--space-12) var(--space-6); }
}

@media (max-width: 560px) {
  .btn { width: 100%; justify-self: stretch; }
  .form-foot { flex-direction: column-reverse; align-items: stretch; gap: var(--space-4); }
  .form-status { text-align: left; }
  .shell { padding-inline: var(--space-4); }
  .hero { margin-top: var(--space-8); }
  .lockup { flex-direction: column; align-items: flex-start; gap: var(--space-5); }
  .hero-mark { --mark-w: 148px; }
  .inst-head { flex-wrap: wrap; gap: var(--space-2); }
  .inst-legend span { letter-spacing: 0.1em; }
  .q { padding: var(--space-8) var(--space-5); }
  .signature img { width: 88px; }
}

/* --- Motion preference ------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  * { transition-duration: 1ms !important; }
}