/* Dalfocal site — shared styles */

:root {
  --ground:    #F2F3F5;
  --surface:   #FFFFFF;
  --sunken:    #E7E9EC;
  --ink:       #1A1F24;
  --ink-soft:  #4A555F;
  --muted:     #6B7683;
  --line:      #D3D8DE;
  --accent:    #8A5A12;
  --accent-dim:#F0E4CC;
  --done:      #2F7D5D;
  --warn:      #A2461F;
  --keycap:    #FFFFFF;
  --keycap-edge:#C3CAD2;

  --mono: ui-monospace, "Cascadia Mono", "JetBrains Mono", "SF Mono", Consolas, "Liberation Mono", monospace;
  --sans: system-ui, -apple-system, "Segoe UI", "Apple SD Gothic Neo", "Malgun Gothic", "Noto Sans KR", sans-serif;

  --step--1: clamp(0.78rem, 0.76rem + 0.1vw, 0.84rem);
  --step-0:  clamp(1rem, 0.97rem + 0.15vw, 1.08rem);
  --step-1:  clamp(1.2rem, 1.12rem + 0.4vw, 1.45rem);
  --step-2:  clamp(1.5rem, 1.34rem + 0.8vw, 2rem);
  --step-3:  clamp(2.1rem, 1.7rem + 2vw, 3.4rem);

  --measure: 62ch;
  --radius: 8px;      /* app-like, not terminal-like */
  --radius-cap: 3px;  /* keycaps stay crisp */
}

@media (prefers-color-scheme: dark) {
  :root {
    --ground:    #101418;
    --surface:   #171C22;
    --sunken:    #0B0E11;
    --ink:       #E4E8EC;
    --ink-soft:  #B3BCC5;
    --muted:     #78838F;
    --line:      #2A323B;
    --accent:    #D9A441;
    --accent-dim:#2E2617;
    --done:      #4FA37B;
    --warn:      #D98159;
    --keycap:    #222A32;
    --keycap-edge:#0C1013;
  }
}
:root[data-theme="light"] {
  --ground:#F2F3F5; --surface:#FFFFFF; --sunken:#E7E9EC;
  --ink:#1A1F24; --ink-soft:#4A555F; --muted:#6B7683; --line:#D3D8DE;
  --accent:#8A5A12; --accent-dim:#F0E4CC; --done:#2F7D5D; --warn:#A2461F;
  --keycap:#FFFFFF; --keycap-edge:#C3CAD2;
}
:root[data-theme="dark"] {
  --ground:#101418; --surface:#171C22; --sunken:#0B0E11;
  --ink:#E4E8EC; --ink-soft:#B3BCC5; --muted:#78838F; --line:#2A323B;
  --accent:#D9A441; --accent-dim:#2E2617; --done:#4FA37B; --warn:#D98159;
  --keycap:#222A32; --keycap-edge:#0C1013;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration:.01ms !important; transition-duration:.01ms !important; }
}

body {
  margin: 0;
  background: var(--ground);
  color: var(--ink);
  font-family: var(--sans);
  font-size: var(--step-0);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  /* Korean breaks anywhere by default, which snaps words like 뜨|는 in half.
     keep-all breaks at spaces; break-word keeps long URLs from overflowing. */
  word-break: keep-all;
  overflow-wrap: break-word;
}

.wrap { width: min(100% - 2.5rem, 68rem); margin-inline: auto; }
section { padding-block: clamp(3.2rem, 7vw, 6rem); }
h1, h2, h3 { text-wrap: balance; line-height: 1.15; margin: 0; }

/* Headlines are sans: mono headlines read as "for developers only" and push
   away everyone who isn't one. Mono stays on keycaps, labels, and code. */

.eyebrow {
  font-family: var(--mono);
  font-size: var(--step--1);
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0 0 1rem;
}

a { color: var(--ink); text-decoration-color: var(--muted); text-underline-offset: 3px; }
a:focus-visible, button:focus-visible, [tabindex]:focus-visible {
  outline: 2px solid var(--accent); outline-offset: 3px;
}

/* ---------- top bar ---------- */
.bar {
  position: sticky; top: 0; z-index: 50;
  background: color-mix(in srgb, var(--ground) 88%, transparent);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}
.bar > .wrap {
  display: flex; align-items: center; justify-content: space-between;
  gap: 1rem; padding-block: .8rem;
}
.wordmark {
  font-family: var(--mono); font-weight: 700; font-size: 1.02rem;
  letter-spacing: -.02em; display: flex; align-items: baseline; gap: .5rem;
  color: var(--ink); text-decoration: none;
}
.wordmark span { color: var(--accent); }
.bar nav { display: flex; align-items: center; gap: 1.4rem; font-size: var(--step--1); }
.bar nav a { color: var(--ink-soft); text-decoration: none; }
.bar nav a:hover { color: var(--ink); }
@media (max-width: 680px) { .bar nav .hide-sm { display: none; } }

.theme-btn {
  font: inherit; font-family: var(--mono); font-size: var(--step--1);
  background: transparent; color: var(--muted);
  border: 1px solid var(--line); border-radius: var(--radius);
  padding: .28rem .6rem; cursor: pointer;
}
.theme-btn:hover { color: var(--ink); border-color: var(--muted); }

/* ---------- keycaps ---------- */
kbd, .cap {
  font-family: var(--mono);
  font-size: .82em;
  font-weight: 600;
  display: inline-flex; align-items: center; justify-content: center;
  min-width: 1.9em; padding: .18em .45em;
  background: var(--keycap);
  color: var(--ink);
  border: 1px solid var(--keycap-edge);
  border-radius: var(--radius-cap);
  box-shadow: 0 1.5px 0 var(--keycap-edge);
  transition: transform .06s ease, box-shadow .06s ease, background .06s ease, color .06s ease;
  white-space: nowrap;
}
.cap.lit {
  transform: translateY(1.5px);
  box-shadow: 0 0 0 var(--keycap-edge);
  background: var(--accent);
  color: var(--ground);
  border-color: var(--accent);
}

/* ---------- hero ---------- */
.hero-wash {
  position: relative;
  padding-top: clamp(2.6rem, 6vw, 4.5rem);
  padding-bottom: clamp(2.5rem, 5vw, 4rem);
  overflow: hidden;
  isolation: isolate;
}
/* Soft amber bloom behind the hero — the flat single colour read as a document. */
.hero-wash::before {
  content: ""; position: absolute; inset: -30% -10% auto -10%; height: 120%;
  z-index: -1; pointer-events: none;
  background:
    radial-gradient(60% 50% at 20% 0%, color-mix(in srgb, var(--accent) 14%, transparent), transparent 70%),
    radial-gradient(50% 45% at 85% 15%, color-mix(in srgb, var(--done) 10%, transparent), transparent 70%);
}
.hero { padding-block: 0; }
.hero h1 {
  font-size: var(--step-3);
  font-weight: 750;
  letter-spacing: -.03em;
  max-width: 15ch;
}
.hero h1 em { font-style: normal; color: var(--accent); }
.hero-en {
  margin: .7rem 0 0; font-family: var(--mono);
  font-size: var(--step-0); letter-spacing: -.01em; color: var(--muted);
}
.lede {
  margin: 1.5rem 0 0; max-width: 48ch;
  font-size: var(--step-1); color: var(--ink-soft); line-height: 1.55;
}
.hero-meta {
  margin-top: 1.8rem; display: flex; flex-wrap: wrap; gap: .6rem 1.6rem;
  font-family: var(--mono); font-size: var(--step--1); color: var(--muted);
}
.hero-meta b { color: var(--ink); font-weight: 500; }
.hero-cta { margin-top: 2.2rem; display: flex; flex-wrap: wrap; gap: .8rem; }

/* ---------- proof strip ---------- */
.proof { border-block: 1px solid var(--line); background: var(--surface); }
.proof .wrap {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px;
  background: var(--line);
  border-inline: 1px solid var(--line);
}
@media (max-width: 700px) { .proof .wrap { grid-template-columns: 1fr; } }
.proof-item { background: var(--surface); padding: 1.8rem 1.6rem; }
.proof-item .pv {
  font-family: var(--mono); font-size: var(--step-2); font-weight: 700;
  color: var(--accent); letter-spacing: -.03em; display: block; line-height: 1.1;
}
.proof-item h3 { font-size: var(--step-0); font-weight: 650; margin: .6rem 0 .35rem; }
.proof-item p { margin: 0; color: var(--muted); font-size: var(--step--1); line-height: 1.6; }

/* ---------- media frame ---------- */
.media {
  position: relative;
  border: 1px solid var(--line); border-radius: var(--radius);
  background: var(--sunken); overflow: hidden;
  box-shadow: 0 24px 60px -32px rgba(0,0,0,.55);
  aspect-ratio: 16 / 10;
}
.media video, .media img { width: 100%; height: 100%; display: block; object-fit: cover; }
.media.wide { aspect-ratio: 16 / 9; }

/* Empty slot: the page must not look broken before the footage exists. */
.media:not(:has(video[src], video source[src], img[src])) { border-style: dashed; background: var(--sunken); }
.slot-note {
  position: absolute; inset: 0;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  text-align: center; padding: 1.5rem; gap: .4rem; color: var(--muted);
  font-family: var(--mono); font-size: var(--step--1); line-height: 1.7;
}
.slot-note b { display: block; color: var(--ink-soft); font-weight: 600; letter-spacing: .06em; }
.slot-note small { display: block; opacity: .85; max-width: 34ch; }
.media:has(video[src], video source[src], img[src]) .slot-note { display: none; }

.hero-media { margin-top: 2.8rem; }
.hero-media .media { aspect-ratio: 16 / 9; }

/* ---------- showcase (alternating text / media) ---------- */
.show { display: grid; gap: clamp(2.6rem, 6vw, 4.5rem); }
.show-row {
  display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.15fr);
  gap: clamp(1.6rem, 4vw, 3.2rem); align-items: center;
}
.show-row:nth-child(even) > .show-copy { order: 2; }
@media (max-width: 860px) {
  .show-row { grid-template-columns: 1fr; }
  .show-row:nth-child(even) > .show-copy { order: 0; }
}
.show-copy { max-width: 42ch; }
.show-copy .rnum {
  font-family: var(--mono); font-size: var(--step--1); color: var(--accent); letter-spacing: .12em;
}
.show-copy h3 { font-size: var(--step-2); font-weight: 700; letter-spacing: -.02em; margin: .8rem 0 .9rem; }
.show-copy p { margin: 0; color: var(--ink-soft); }
.show-copy p + p { margin-top: .6rem; }
.show-copy .cap { font-size: .78em; }
.show-tags { margin-top: 1.2rem; display: flex; flex-wrap: wrap; gap: .45rem; }

/* ---------- theme teaser ---------- */
.themes-strip { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; margin-bottom: 2rem; }
@media (max-width: 700px) { .themes-strip { grid-template-columns: 1fr; } }
.themes-strip .media { aspect-ratio: 4 / 3; }

/* ---------- beta banner ---------- */
.beta {
  margin-top: 2.6rem;
  border: 1px solid var(--line);
  border-left: 3px solid var(--accent);
  background: var(--surface);
  padding: 1.1rem 1.3rem;
  max-width: var(--measure);
}
.beta p { margin: 0; font-size: var(--step--1); color: var(--ink-soft); line-height: 1.7; }
.beta p + p { margin-top: .5rem; }
.beta strong { color: var(--ink); font-weight: 600; }

/* ---------- demo board ---------- */
.demo-shell { margin-top: 3rem; }
.demo-head {
  display: flex; align-items: baseline; justify-content: space-between;
  gap: 1rem; flex-wrap: wrap; margin-bottom: .8rem;
}
.demo-head p { margin: 0; font-family: var(--mono); font-size: var(--step--1); color: var(--muted); }
.demo {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: clamp(.9rem, 2vw, 1.4rem);
  display: grid; grid-template-columns: repeat(3, 1fr); gap: .9rem;
}
.demo:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
@media (max-width: 640px) { .demo { grid-template-columns: 1fr; } }

.col-title {
  font-family: var(--mono); font-size: var(--step--1);
  letter-spacing: .1em; text-transform: uppercase;
  color: var(--muted); margin: 0 0 .7rem; padding-bottom: .5rem;
  border-bottom: 1px solid var(--line);
  display: flex; justify-content: space-between;
}
.col ul { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: .5rem; min-height: 3rem; }

.card {
  background: var(--ground);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: .6rem .7rem;
  font-size: var(--step--1);
  line-height: 1.45;
  cursor: pointer;
  display: flex; gap: .5rem; align-items: flex-start;
  transition: border-color .12s ease, background .12s ease, transform .12s ease;
}
.card:hover { border-color: var(--muted); }
.card[data-focused="true"] {
  border-color: var(--accent);
  box-shadow: inset 0 0 0 1px var(--accent);
  background: var(--accent-dim);
}
.card[data-done="true"] .card-text { text-decoration: line-through; color: var(--muted); }
.card .tick {
  font-family: var(--mono); font-size: .9em; line-height: 1.5;
  color: var(--muted); flex: none; width: 1em;
}
.card[data-done="true"] .tick { color: var(--done); }
.card.bump { transform: scale(1.02); }

.legend {
  margin-top: 1rem; display: flex; flex-wrap: wrap; gap: .55rem 1.5rem;
  font-size: var(--step--1); color: var(--muted); font-family: var(--mono);
}
.legend span { display: inline-flex; align-items: center; gap: .45rem; }
.hint { color: var(--accent); }

/* ---------- generic section head ---------- */
.section-head { max-width: var(--measure); margin-bottom: 2.8rem; }
.section-head h2 {
  font-size: var(--step-2);
  font-weight: 720; letter-spacing: -.02em;
}
.section-head p { margin: 1rem 0 0; color: var(--ink-soft); }

.alt { background: var(--surface); border-block: 1px solid var(--line); }

/* ---------- problem band ---------- */
.band { background: var(--sunken); border-block: 1px solid var(--line); }
.band .wrap { max-width: 46rem; text-align: center; }
.band p {
  font-size: clamp(1.15rem, 1rem + 1vw, 1.7rem);
  font-weight: 600;
  line-height: 1.5; letter-spacing: -.02em;
  color: var(--ink); margin: 0; text-wrap: balance;
}
.band .strike { color: var(--muted); text-decoration: line-through; text-decoration-color: var(--warn); }
.band .keep { color: var(--accent); }
.band .sub { font-size: var(--step-0); font-weight: 400; color: var(--ink-soft); margin-top: 1.6rem; letter-spacing: normal; }

/* ---------- reasons ---------- */
.reasons { display: grid; grid-template-columns: repeat(auto-fit, minmax(16.5rem, 1fr)); gap: 1.4rem; }
.reason {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 1.5rem 1.5rem 1.6rem;
  display: flex; flex-direction: column; gap: .7rem;
}
.reason .rnum {
  font-family: var(--mono); font-size: var(--step--1); color: var(--accent);
  letter-spacing: .1em;
}
.reason h3 { font-size: var(--step-1); font-weight: 650; letter-spacing: -.01em; }
.reason p { margin: 0; color: var(--ink-soft); font-size: calc(var(--step-0) * .95); }
.reason p + p { margin-top: .2rem; }
.reason .cap { font-size: .78em; }

/* ---------- chips (syntax showcase / cards) ---------- */
.chip {
  font-family: var(--mono); font-size: .82em; font-weight: 600;
  padding: .12em .5em; border-radius: 999px; white-space: nowrap;
  display: inline-flex; align-items: center; gap: .3em;
  border: 1px solid var(--line); background: var(--sunken); color: var(--ink-soft);
}
.chip.prio { color: var(--warn); border-color: color-mix(in srgb, var(--warn) 40%, var(--line)); background: color-mix(in srgb, var(--warn) 10%, transparent); }
.chip.label { color: var(--accent); border-color: color-mix(in srgb, var(--accent) 40%, var(--line)); background: var(--accent-dim); }
.chip.due { color: var(--done); border-color: color-mix(in srgb, var(--done) 40%, var(--line)); background: color-mix(in srgb, var(--done) 10%, transparent); }

/* ---------- syntax showcase ---------- */
.syntax { display: grid; gap: 1.1rem; max-width: 44rem; }
.syntax .typed {
  font-family: var(--mono); font-size: var(--step-0);
  background: var(--sunken); border: 1px solid var(--line); border-radius: var(--radius);
  padding: .9rem 1rem; color: var(--ink);
}
.syntax .typed .tok-prio { color: var(--warn); }
.syntax .typed .tok-label { color: var(--accent); }
.syntax .typed .tok-at { color: var(--ink-soft); }
.syntax .typed .tok-due { color: var(--done); }
.syntax .arrow { font-family: var(--mono); color: var(--muted); text-align: center; font-size: var(--step-1); }
.syntax .result {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 1rem 1.1rem; display: flex; flex-direction: column; gap: .7rem;
}
.syntax .result .r-title { font-weight: 600; }
.syntax .result .r-chips { display: flex; flex-wrap: wrap; gap: .5rem; }

/* ---------- workflow steps ---------- */
.steps { display: grid; grid-template-columns: repeat(auto-fit, minmax(14rem, 1fr)); gap: 1.4rem; counter-reset: step; }
.step { position: relative; padding-top: 2.6rem; }
.step::before {
  counter-increment: step; content: counter(step);
  position: absolute; top: 0; left: 0;
  font-family: var(--mono); font-weight: 700; font-size: 1.1rem;
  width: 1.9rem; height: 1.9rem; border-radius: 999px;
  display: grid; place-items: center;
  color: var(--accent); border: 1px solid var(--accent);
}
.step h3 { font-size: var(--step-1); font-weight: 620; letter-spacing: -.01em; margin-bottom: .5rem; }
.step p { margin: 0; color: var(--ink-soft); font-size: calc(var(--step-0) * .95); }
.step .cap { font-size: .78em; }

/* ---------- who ---------- */
.who { display: grid; grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr)); gap: 1.1rem 2.4rem; max-width: 54rem; list-style: none; padding: 0; margin: 0; }
.who li { display: flex; gap: .8rem; align-items: baseline; color: var(--ink-soft); }
.who li::before { content: "→"; color: var(--accent); font-family: var(--mono); flex: none; }
.who b { color: var(--ink); font-weight: 600; }

/* ---------- palette mockup ---------- */
.palette {
  max-width: 34rem; background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--radius); overflow: hidden; box-shadow: 0 12px 40px -20px rgba(0,0,0,.4);
}
.palette .pinput {
  font-family: var(--mono); font-size: var(--step-0);
  padding: .9rem 1.1rem; border-bottom: 1px solid var(--line);
  color: var(--ink); display: flex; gap: .5rem; align-items: center;
}
.palette .pinput .sig { color: var(--accent); font-weight: 700; }
.palette .pinput .cursor { width: .55ch; height: 1.15em; background: var(--accent); display: inline-block; animation: blink 1.1s step-end infinite; }
@keyframes blink { 50% { opacity: 0; } }
.palette .prow {
  display: flex; align-items: center; gap: .8rem; padding: .7rem 1.1rem;
  font-size: var(--step--1); color: var(--ink-soft); border-bottom: 1px solid var(--line);
}
.palette .prow:last-child { border-bottom: 0; }
.palette .prow.on { background: var(--accent-dim); color: var(--ink); }
.palette .prow .psig { font-family: var(--mono); color: var(--muted); width: 1.2em; flex: none; text-align: center; }
.palette .prow.on .psig { color: var(--accent); }

/* ---------- screenshot figure ---------- */
.shot { margin: 0 0 2.4rem; }
.shot img { width: 100%; display: block; border: 1px solid var(--line); border-radius: var(--radius); }
.shot figcaption { margin-top: .7rem; font-family: var(--mono); font-size: var(--step--1); color: var(--muted); text-align: center; }
.shot-ph {
  aspect-ratio: 16 / 9; border: 1px dashed var(--line); border-radius: var(--radius);
  display: grid; place-items: center; text-align: center; padding: 1.5rem;
  background: var(--sunken); color: var(--muted);
  font-family: var(--mono); font-size: var(--step-0); line-height: 1.7;
}
.shot-ph small { display: block; margin-top: .4rem; font-size: .8em; opacity: .8; }

/* ---------- together: multi-instance + MCP ---------- */
.soon-tag {
  display: inline-block; margin-left: .7rem; vertical-align: middle;
  font-family: var(--mono); font-size: .68rem; letter-spacing: .12em; text-transform: uppercase;
  color: var(--accent); border: 1px solid color-mix(in srgb, var(--accent) 45%, var(--line));
  background: var(--accent-dim); border-radius: 999px; padding: .15em .65em;
}
.mesh { max-width: 46rem; display: grid; gap: .9rem; margin-bottom: 2.8rem; }
.mesh-nodes { display: grid; grid-template-columns: repeat(3, 1fr); gap: .8rem; }
@media (max-width: 560px) { .mesh-nodes { grid-template-columns: 1fr; } }
.node {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  padding: .9rem .8rem; text-align: center;
  font-family: var(--mono); font-size: var(--step--1); color: var(--ink);
}
.node small { display: block; color: var(--muted); font-family: var(--sans); margin-top: .3rem; font-size: .85em; }
.mesh-arrow { text-align: center; color: var(--muted); font-family: var(--mono); line-height: 1; font-size: 1.1rem; }
.log-bar {
  background: var(--accent-dim);
  border: 1px solid color-mix(in srgb, var(--accent) 40%, var(--line));
  border-radius: var(--radius); padding: .95rem 1rem; text-align: center;
  font-family: var(--mono); font-size: var(--step-0); color: var(--ink); letter-spacing: -.01em;
}
.mesh-cap { text-align: center; color: var(--muted); font-size: var(--step--1); margin: 0; font-family: var(--mono); }

/* ---------- feature list ---------- */
/* Folded by default — the full inventory is for people who are already
   interested, not for people deciding whether to be. */
.fold { border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); }
.fold > summary {
  cursor: pointer; list-style: none; padding: 1.1rem 1.4rem;
  display: flex; justify-content: space-between; align-items: center; gap: 1rem;
  font-weight: 650;
}
.fold > summary::-webkit-details-marker { display: none; }
.fold > summary::after { content: "+"; font-family: var(--mono); color: var(--muted); flex: none; }
.fold[open] > summary::after { content: "−"; }
.fold > summary small { font-family: var(--mono); font-size: var(--step--1); color: var(--muted); font-weight: 400; }
.fold-body { padding: 0 1.4rem 1.4rem; }

.feature-list { list-style: none; padding: 0; margin: 0; column-width: 17rem; column-gap: 2.6rem; }
.feature-list li {
  break-inside: avoid; padding: .75rem 0; border-bottom: 1px solid var(--line);
  display: flex; gap: .9rem; align-items: baseline; font-size: calc(var(--step-0) * .96);
}
.feature-list b { font-weight: 600; flex: none; min-width: 5.5rem; }
.feature-list span { color: var(--ink-soft); }

/* ---------- download ---------- */
.platforms { display: grid; grid-template-columns: repeat(auto-fit, minmax(17rem, 1fr)); gap: 1.2rem; }
.plat {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 1.4rem 1.5rem; display: flex; flex-direction: column; gap: .8rem;
}
.plat.soon { background: transparent; border-style: dashed; }
.plat h3 { font-family: var(--mono); font-size: var(--step-1); letter-spacing: -.02em; }
.plat .status {
  font-family: var(--mono); font-size: var(--step--1); letter-spacing: .08em;
  text-transform: uppercase; color: var(--accent);
}
.plat.soon .status { color: var(--muted); }
.plat p { margin: 0; color: var(--ink-soft); font-size: var(--step--1); line-height: 1.7; }
.plat .spacer { flex: 1; }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .5rem;
  font-family: var(--mono); font-size: var(--step--1); font-weight: 600;
  padding: .75rem 1.1rem; border-radius: var(--radius);
  background: var(--ink); color: var(--ground);
  border: 1px solid var(--ink); text-decoration: none;
  transition: opacity .12s ease;
}
.btn:hover { opacity: .86; }
.btn.ghost { background: transparent; color: var(--ink); border-color: var(--line); }
.btn[aria-disabled="true"] { opacity: .45; pointer-events: none; }

/* ---------- faq ---------- */
.faq { max-width: var(--measure); }
.faq details { border-bottom: 1px solid var(--line); padding: .3rem 0; }
.faq summary {
  cursor: pointer; padding: .9rem 0; font-weight: 600; list-style: none;
  display: flex; justify-content: space-between; gap: 1rem; align-items: center;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; font-family: var(--mono); color: var(--muted); flex: none; }
.faq details[open] summary::after { content: "−"; }
.faq p { margin: 0 0 1rem; color: var(--ink-soft); font-size: calc(var(--step-0) * .96); }

/* ---------- footer ---------- */
footer { border-top: 1px solid var(--line); padding-block: 2.5rem 3.5rem; }
footer .wrap { display: flex; flex-wrap: wrap; gap: 1rem 2rem; justify-content: space-between; align-items: baseline; }
footer p { margin: 0; font-family: var(--mono); font-size: var(--step--1); color: var(--muted); }
footer nav { display: flex; gap: 1.4rem; font-size: var(--step--1); }
footer nav a { color: var(--ink-soft); text-decoration: none; }
footer nav a:hover { color: var(--ink); }

.center-cta { text-align: center; margin-top: 3rem; }
.center-cta .btn { font-size: var(--step-0); padding: .85rem 1.6rem; }

/* ================= GUIDE PAGE ================= */
.guide-layout { display: grid; grid-template-columns: 15rem 1fr; gap: 3.5rem; align-items: start; }
@media (max-width: 900px) { .guide-layout { grid-template-columns: 1fr; gap: 1.5rem; } }

.toc { position: sticky; top: 4.5rem; font-size: var(--step--1); }
@media (max-width: 900px) {
  .toc { position: static; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 1rem 1.2rem; }
}
.toc p { font-family: var(--mono); text-transform: uppercase; letter-spacing: .12em; color: var(--muted); margin: 0 0 .8rem; }
.toc ul { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: .1rem; }
.toc a { display: block; padding: .3rem 0; color: var(--ink-soft); text-decoration: none; border-left: 2px solid transparent; padding-left: .8rem; }
.toc a:hover { color: var(--ink); border-color: var(--line); }

.guide { max-width: 46rem; }
.guide h1 { font-family: var(--mono); font-size: var(--step-3); letter-spacing: -.03em; font-weight: 700; margin-bottom: 1rem; }
.guide .intro { font-size: var(--step-1); color: var(--ink-soft); margin: 0 0 1rem; }
.guide section { padding-block: 0; margin-top: 3.5rem; scroll-margin-top: 4.5rem; }
.guide h2 {
  font-family: var(--mono); font-size: var(--step-2); font-weight: 700; letter-spacing: -.02em;
  padding-bottom: .6rem; border-bottom: 1px solid var(--line); margin-bottom: 1.2rem;
}
.guide h3 { font-size: var(--step-1); font-weight: 620; margin: 2rem 0 .6rem; }
.guide p { margin: 0 0 1rem; color: var(--ink-soft); }
.guide strong { color: var(--ink); font-weight: 600; }
.guide ul.plain { padding-left: 1.1rem; color: var(--ink-soft); }
.guide ul.plain li { margin-bottom: .4rem; }

.callout {
  background: var(--surface); border: 1px solid var(--line); border-left: 3px solid var(--accent);
  border-radius: var(--radius); padding: 1rem 1.2rem; margin: 0 0 1.4rem;
  color: var(--ink-soft); font-size: calc(var(--step-0) * .96);
}
.callout strong { color: var(--ink); }

.guide pre {
  background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--radius); padding: .9rem 1rem; margin: 0 0 1.4rem;
  overflow-x: auto; font-size: calc(var(--step-0) * .88); line-height: 1.5;
}
.guide pre code { font-family: var(--mono); color: var(--ink-soft); white-space: pre; }

.keys { width: 100%; border-collapse: collapse; margin: 0 0 1.4rem; font-size: calc(var(--step-0) * .95); }
.keys th, .keys td { text-align: left; padding: .55rem .7rem; border-bottom: 1px solid var(--line); vertical-align: top; }
.keys th { font-family: var(--mono); font-size: var(--step--1); text-transform: uppercase; letter-spacing: .08em; color: var(--muted); font-weight: 500; }
.keys td:first-child { white-space: nowrap; width: 1%; }
.keys td { color: var(--ink-soft); }
.table-scroll { overflow-x: auto; }

.guide .backlink { font-family: var(--mono); font-size: var(--step--1); color: var(--muted); text-decoration: none; }
.guide .backlink:hover { color: var(--ink); }