/* EXPO ASSISTANT — product UI (ZAROX DESIGN.md) */
@import url("https://fonts.googleapis.com/css2?family=IBM+Plex+Mono:wght@400;500&family=Manrope:wght@400;500;600&family=Syne:wght@600;700&display=swap");

:root,
[data-theme="dark"] {
  --ex-bg: #0a0a0a;
  --ex-panel: #141414;
  --ex-ink: #f5f5f5;
  --ex-mute: #8a8a8a;
  --ex-line: rgba(255, 255, 255, 0.08);
  --ex-accent: #ff5a1f;
  --ex-accent-dim: rgba(255, 90, 31, 0.35);
  --ex-font: "Manrope", "Helvetica Neue", Helvetica, Arial, sans-serif;
  --ex-display: "Syne", "Manrope", sans-serif;
  --ex-mono: "IBM Plex Mono", ui-monospace, monospace;
  --ex-nav-bg: #080808;
  --ex-nav-ink: #f5f5f5;
  --ex-nav-mute: #8a8a8a;
  --ex-shadow: 0 20px 60px rgba(0, 0, 0, 0.35);
  --ex-composer-bg: #141414;
}

[data-theme="light"] {
  --ex-bg: #f4f1ec;
  --ex-panel: #f7f4ef;
  --ex-ink: #141416;
  --ex-mute: #5c5c66;
  --ex-line: rgba(20, 20, 22, 0.06);
  --ex-accent: #e04812;
  --ex-accent-dim: rgba(224, 72, 18, 0.18);
  --ex-nav-bg: transparent;
  --ex-nav-ink: #141416;
  --ex-nav-mute: #6a6a74;
  --ex-shadow: 0 18px 48px rgba(40, 30, 20, 0.06);
  --ex-composer-bg: rgba(255, 252, 248, 0.72);
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html, body.expo-page {
  min-height: 100%;
  background: var(--ex-bg);
  color: var(--ex-ink);
  font-family: var(--ex-font);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}



/* ── Drag & drop overlay ─────────────────────────────────── */
.expo-dropzone {
  position: fixed;
  inset: 0;
  z-index: 60;
  display: grid;
  place-items: center;
  background: rgba(8, 8, 8, 0.78);
  backdrop-filter: blur(3px);
  pointer-events: none;
}
.expo-dropzone[hidden] { display: none !important; }
.expo-dropzone span {
  border: 2px dashed var(--ex-accent);
  border-radius: 18px;
  padding: 2.2rem 3rem;
  font-size: 1.05rem;
  color: #fff;
  letter-spacing: 0.04em;
  box-shadow: 0 0 48px var(--ex-accent-dim);
}

/* ── Shell ───────────────────────────────────────────────── */
.expo-shell {
  display: grid;
  grid-template-columns: 168px 1fr;
  min-height: 100vh;
}
.expo-shell[hidden] { display: none !important; }

.expo-nav {
  border-right: 0;
  background: var(--ex-nav-bg);
  padding: 1.25rem 0.9rem;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  color: var(--ex-nav-ink);
  position: relative;
  isolation: isolate;
}
.expo-nav::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 28px;
  height: 100%;
  pointer-events: none;
  background: linear-gradient(90deg, transparent, rgba(0, 0, 0, 0.18));
  opacity: 0.55;
  filter: blur(10px);
  transform: translateX(40%);
}
[data-theme="light"] .expo-nav::after {
  background: linear-gradient(90deg, transparent, rgba(40, 30, 20, 0.08));
  opacity: 0.7;
  filter: blur(14px);
}
.expo-logo {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  text-decoration: none;
  color: inherit;
  padding: 0.25rem 0.4rem;
}
.expo-logo strong {
  display: block;
  font-family: var(--ex-display);
  font-weight: 700;
  font-size: 0.82rem;
  letter-spacing: 0.22em;
}
.expo-logo em {
  font-family: var(--ex-mono);
  font-style: normal;
  font-size: 0.58rem;
  letter-spacing: 0.28em;
  color: var(--ex-accent);
}
.expo-logo img {
  width: 28px;
  height: 28px;
}
.expo-hero-gate {
  width: 44px;
  height: 44px;
  margin-bottom: 0.45rem;
}
[data-theme="light"] .expo-hero-gate {
  filter: invert(1);
}

.expo-nav-list { display: flex; flex-direction: column; gap: 0.2rem; }
.expo-nav-item {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  padding: 0.6rem 0.7rem;
  border-radius: 10px;
  color: var(--ex-nav-mute);
  text-decoration: none;
  font-size: 0.88rem;
  transition: background 0.15s, color 0.15s;
}
.expo-nav-item:hover { color: var(--ex-nav-ink); }
.expo-nav-item.is-active {
  background: rgba(255, 255, 255, 0.06);
  color: var(--ex-nav-ink);
}
.expo-nav-item.is-active .ico { color: var(--ex-accent); }
.expo-nav-site {
  margin-bottom: 0.35rem;
  border: 1px solid rgba(255, 90, 31, 0.28);
  color: #ffb199 !important;
}
.expo-nav-site:hover {
  border-color: rgba(255, 90, 31, 0.55);
  color: var(--ex-accent) !important;
  background: rgba(255, 90, 31, 0.08);
}
.expo-nav-site .ico { color: var(--ex-accent); opacity: 1; }
.expo-nav-gate {
  margin-bottom: 0.35rem;
  border: 1px solid rgba(255, 90, 31, 0.28);
  color: #ffb199 !important;
  letter-spacing: 0.02em;
  font-weight: 600;
  text-transform: none;
}
.expo-nav-gate:hover {
  border-color: rgba(255, 90, 31, 0.55);
  color: var(--ex-accent) !important;
  background: rgba(255, 90, 31, 0.08);
}
.expo-nav-gate .ico { color: var(--ex-accent); opacity: 1; }
.expo-nav-list .expo-nav-item {
  min-height: 42px;
  box-sizing: border-box;
}
.ico {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  opacity: 0.9;
}
.expo-nav-home .ico { width: 15px; height: 15px; }

[data-theme="light"] .expo-nav {
  box-shadow: none;
}
[data-theme="light"] .expo-nav .expo-nav-item.is-active {
  background: rgba(224, 72, 18, 0.08);
  color: var(--ex-nav-ink);
}
[data-theme="light"] .expo-nav .expo-logo strong { color: var(--ex-nav-ink); }
[data-theme="light"] .expo-nav .expo-theme,
[data-theme="light"] .expo-nav .expo-login {
  color: var(--ex-nav-mute);
}
[data-theme="light"] .expo-nav .expo-login:hover { color: var(--ex-nav-ink); }
[data-theme="light"] .expo-nav .expo-lang {
  color: var(--ex-nav-mute);
  border-color: rgba(20, 20, 22, 0.12);
}
[data-theme="light"] .expo-nav .expo-switch { background: #c8c8d0; }
[data-theme="light"] .expo-nav .expo-switch::after { background: #fff; }

.expo-nav-foot {
  margin-top: auto;
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
  padding: 0 0.35rem;
}
.expo-theme {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: transparent;
  border: 0;
  color: var(--ex-mute);
  font: inherit;
  font-size: 0.8rem;
  cursor: pointer;
  padding: 0.35rem 0;
}
.expo-switch {
  width: 34px;
  height: 18px;
  border-radius: 99px;
  background: #333;
  position: relative;
}
.expo-switch::after {
  content: "";
  position: absolute;
  top: 2px;
  left: 2px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: #888;
  transition: left 0.2s, background 0.2s;
}
[data-theme="dark"] .expo-switch { background: rgba(255,90,31,0.35); }
[data-theme="dark"] .expo-switch::after {
  left: 18px;
  background: var(--ex-accent);
}
.expo-login, .expo-login-top {
  color: var(--ex-mute);
  text-decoration: none;
  font-size: 0.82rem;
}
.expo-login:hover, .expo-login-top:hover { color: var(--ex-ink); }
.expo-lang, .expo-lang-top {
  align-self: flex-start;
  background: transparent;
  border: 1px solid var(--ex-line);
  color: var(--ex-mute);
  border-radius: 6px;
  padding: 0.25rem 0.5rem;
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  cursor: pointer;
}
.expo-lang:hover, .expo-lang-top:hover { color: var(--ex-ink); }

.expo-main {
  padding: 1rem 1.5rem 2.5rem;
  max-width: 920px;
  margin: 0 auto;
  width: 100%;
}
.expo-logo small {
  display: block;
  font-size: 0.55rem;
  letter-spacing: 0.08em;
  color: var(--ex-mute);
  margin-top: 0.15rem;
}
.ew-ru {
  margin-top: 0.45rem;
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  color: var(--ex-mute);
}
.ew-core {
  margin-top: 0.25rem;
  font-size: 0.85rem;
  letter-spacing: 0.55em;
  color: var(--ex-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
}
.ew-core span {
  display: block;
  width: 2rem;
  height: 1px;
  background: rgba(255,90,31,0.5);
}
.expo-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
}
.expo-top-right {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}
.expo-back {
  color: var(--ex-mute);
  text-decoration: none;
  font-size: 0.8rem;
  border: 1px solid var(--ex-line);
  border-radius: 8px;
  padding: 0.35rem 0.65rem;
}
.expo-back:hover { color: var(--ex-ink); border-color: var(--ex-accent); }
.expo-nav-home {
  margin-top: 0.5rem;
  border-top: 1px solid var(--ex-line);
  padding-top: 0.75rem !important;
  border-radius: 0 !important;
}
.expo-hero {
  text-align: center;
  padding: 0.35rem 0 1rem;
  position: relative;
  isolation: isolate;
  overflow: hidden;
}
.zarox-aurora {
  position: absolute;
  inset: -10% -8% 10%;
  z-index: 0;
  pointer-events: none;
  opacity: 0.9;
}
/* Full-viewport molecules on calc page */
.zarox-aurora-page {
  position: fixed;
  inset: 0;
  z-index: 0;
  opacity: 0.95;
}
.zarox-aurora.is-static {
  background:
    radial-gradient(ellipse 55% 40% at 50% 18%, rgba(255, 90, 31, 0.16), transparent 70%),
    radial-gradient(ellipse 40% 35% at 12% 78%, rgba(255, 140, 80, 0.08), transparent 70%);
}
.zarox-aurora-canvas {
  display: block;
  width: 100%;
  height: 100%;
}
body.expo-page,
.expo-shell,
.expo-main {
  position: relative;
  z-index: 1;
}
.expo-hero > *:not(.zarox-aurora) {
  position: relative;
  z-index: 1;
}
.expo-wordmark { margin-bottom: 0.55rem; }
.ew-zarox {
  font-family: var(--ex-display);
  font-size: clamp(1.55rem, 3.6vw, 2.15rem);
  font-weight: 700;
  letter-spacing: 0.24em;
  margin-left: 0.24em;
  line-height: 1.05;
}
.ew-core {
  margin-top: 0.35rem;
  font-family: var(--ex-mono);
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.55em;
  color: var(--ex-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
}
.ew-core span {
  display: block;
  width: 2rem;
  height: 1px;
  background: rgba(255,90,31,0.5);
}
.expo-hero h1 {
  font-family: var(--ex-display);
  font-weight: 600;
  font-size: clamp(1.02rem, 2vw, 1.28rem);
  letter-spacing: -0.01em;
  margin-bottom: 0.35rem;
  opacity: 0.92;
}
.expo-hero > p {
  color: var(--ex-mute);
  font-size: 0.86rem;
  max-width: 28rem;
  margin: 0 auto 0.7rem;
  line-height: 1.4;
}
.expo-horizon {
  height: 1px;
  width: min(320px, 55%);
  margin: 0 auto 0.85rem;
  background: linear-gradient(90deg, transparent, var(--ex-accent), transparent);
  box-shadow: 0 0 18px var(--ex-accent-dim);
}

/* Hero enter (react-bits style staggered fade) */
.zarox-enter .expo-hero-gate,
.zarox-enter .expo-wordmark,
.zarox-enter h1,
.zarox-enter > p,
.zarox-enter .expo-horizon,
.zarox-enter .expo-composer,
.zarox-enter ~ .expo-feats {
  opacity: 0;
  transform: translateY(14px);
}
.zarox-enter-active .expo-hero-gate,
.zarox-enter-active .expo-wordmark,
.zarox-enter-active h1,
.zarox-enter-active > p,
.zarox-enter-active .expo-horizon,
.zarox-enter-active .expo-composer,
.zarox-enter-done .expo-hero-gate,
.zarox-enter-done .expo-wordmark,
.zarox-enter-done h1,
.zarox-enter-done > p,
.zarox-enter-done .expo-horizon,
.zarox-enter-done .expo-composer {
  opacity: 1;
  transform: none;
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.zarox-enter-active .expo-hero-gate { transition-delay: 0.05s; }
.zarox-enter-active .expo-wordmark { transition-delay: 0.12s; }
.zarox-enter-active h1 { transition-delay: 0.22s; }
.zarox-enter-active > p { transition-delay: 0.3s; }
.zarox-enter-active .expo-horizon { transition-delay: 0.38s; }
.zarox-enter-active .expo-composer { transition-delay: 0.46s; }

.expo-feats {
  opacity: 0;
  transform: translateY(10px);
}
.zarox-enter-active ~ .expo-feats,
.expo-main:has(.zarox-enter-active) .expo-feats,
.expo-main:has(.zarox-enter-done) .expo-feats {
  opacity: 1;
  transform: none;
  transition: opacity 0.7s ease 0.55s, transform 0.7s ease 0.55s;
}

@media (prefers-reduced-motion: reduce) {
  .zarox-enter .expo-hero-gate,
  .zarox-enter .expo-wordmark,
  .zarox-enter h1,
  .zarox-enter > p,
  .zarox-enter .expo-horizon,
  .zarox-enter .expo-composer,
  .expo-feats {
    opacity: 1 !important;
    transform: none !important;
    transition: none !important;
  }
  .expo-switch-thumb { transition: none; }
}

.expo-composer {
  text-align: left;
  background: var(--ex-composer-bg);
  border: 1px solid transparent;
  border-radius: 22px;
  padding: 0.95rem 1rem 0.85rem;
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.04) inset,
    0 18px 50px rgba(0, 0, 0, 0.18);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  position: relative;
  overflow: hidden;
  transition: border-color 0.2s ease, box-shadow 0.25s ease;
}
[data-theme="light"] .expo-composer {
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.7) inset,
    0 16px 40px rgba(40, 30, 20, 0.06);
}
.expo-composer-glow {
  pointer-events: none;
  position: absolute;
  inset: -35% -15% auto;
  height: 75%;
  background: radial-gradient(ellipse at 50% 0%, rgba(255, 90, 31, 0.22), transparent 65%);
  opacity: 0.55;
  transition: opacity 0.25s ease;
}
.expo-composer:focus-within {
  border-color: rgba(255, 90, 31, 0.5);
  box-shadow: var(--ex-shadow), 0 0 0 1px rgba(255, 90, 31, 0.18);
}
.expo-composer:focus-within .expo-composer-glow { opacity: 0.9; }
.expo-composer-head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.45rem;
  margin-bottom: 0.55rem;
  position: relative;
  z-index: 1;
}
.expo-dir {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.4rem;
  width: auto;
  max-width: 100%;
  padding: 0;
  border: 0;
  border-radius: 0;
  background: transparent;
}
.expo-switch-thumb { display: none; }

.expo-dir-btn {
  position: relative;
  z-index: 1;
  border: 1px solid var(--ex-line);
  background: transparent;
  color: var(--ex-mute);
  border-radius: 999px;
  padding: 0.4rem 0.9rem;
  min-height: 36px;
  font-family: var(--ex-mono);
  font-size: 0.72rem;
  letter-spacing: 0.02em;
  cursor: pointer;
  transition: color 0.15s ease, border-color 0.15s ease, background 0.15s ease;
}
.expo-dir-btn:hover { color: var(--ex-ink); }
.expo-dir-btn:active { transform: none; }
.expo-dir-btn.is-active {
  color: var(--ex-ink);
  border-color: var(--ex-accent);
  background: transparent;
}
.expo-quality, .expo-items {
  margin-top: 0.85rem;
  padding-top: 0.7rem;
  border-top: 1px solid var(--ex-line);
  text-align: left;
  font-size: 0.9rem;
}
.expo-quality .eq-h, .expo-items .eq-h {
  margin: 0.55rem 0 0.25rem;
  font-weight: 600;
  color: var(--ex-ink);
  font-family: var(--ex-display);
  font-size: 0.88rem;
}
.expo-quality ul, .expo-items ul {
  margin: 0;
  padding-left: 1.1rem;
  color: var(--ex-mute);
}
.expo-items li {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.55rem;
}
.expo-items li > span { flex: 1; min-width: 0; }
.eq-conf {
  display: inline-block;
  width: 0.55rem;
  height: 0.55rem;
  border-radius: 50%;
  flex-shrink: 0;
  margin-right: 0.35rem;
  vertical-align: middle;
}
.eq-conf-green { background: #3dba7a; box-shadow: 0 0 6px rgba(61, 186, 122, 0.45); }
.eq-conf-yellow { background: #e0a23a; box-shadow: 0 0 6px rgba(224, 162, 58, 0.4); }
.eq-conf-red { background: #e04a2f; box-shadow: 0 0 6px rgba(224, 74, 47, 0.4); }
.eq-conf-sum {
  margin-left: 0.55rem;
  font-family: var(--ex-mono);
  font-size: 0.68rem;
  color: var(--ex-mute);
  font-weight: 400;
}
.eq-conf-sum .eq-conf { margin: 0 0.15rem 0 0.45rem; }
.expo-unknowns {
  margin-top: 0.75rem;
  padding-top: 0.65rem;
  border-top: 1px dashed var(--ex-line);
}
.expo-unknowns .suggest-hint {
  display: inline-block;
  font-style: normal;
  font-size: 0.72rem;
  color: var(--ex-mute);
  margin: 0.2rem 0.4rem 0 0;
}
.expo-variants { margin-top: 0.85rem; }
.expo-var-row {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.5rem;
  margin-top: 0.45rem;
}
.expo-var-card {
  border: 1px solid var(--ex-line);
  background: rgba(255, 255, 255, 0.02);
  color: inherit;
  border-radius: 2px;
  padding: 0.7rem 0.65rem;
  cursor: default;
  text-align: left;
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}
.expo-var-card span {
  font-family: var(--ex-mono);
  font-size: 0.65rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ex-mute);
}
.expo-var-card strong {
  font-family: var(--ex-display);
  font-size: 1rem;
  font-weight: 600;
  color: var(--ex-accent);
}
@media (max-width: 560px) {
  .expo-var-row { grid-template-columns: 1fr; }
}
.expo-quality .eq-dir {
  font-family: var(--ex-mono);
  font-size: 0.78rem;
  color: var(--ex-mute);
  margin: 0 0 0.35rem;
}
.expo-quality .eq-budget { color: var(--ex-mute); margin: 0.2rem 0 0; }
.expo-composer textarea {
  width: 100%;
  border: 0;
  outline: none;
  resize: none;
  background: transparent;
  color: var(--ex-ink);
  font: inherit;
  font-size: 1rem;
  line-height: 1.5;
  min-height: 3.2rem;
  position: relative;
  z-index: 1;
}
.expo-composer-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  margin-top: 0.65rem;
  padding-top: 0.55rem;
  border-top: 1px solid var(--ex-line);
  position: relative;
  z-index: 1;
}
.expo-composer-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
}
.expo-chip {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--ex-line);
  color: var(--ex-mute);
  font: inherit;
  font-size: 0.78rem;
  padding: 0.4rem 0.7rem;
  border-radius: 999px;
  cursor: pointer;
  transition: color 0.15s, border-color 0.15s, background 0.15s;
}
.expo-chip:hover {
  color: var(--ex-ink);
  border-color: rgba(255, 90, 31, 0.35);
  background: rgba(255, 90, 31, 0.06);
}
[data-theme="light"] .expo-chip {
  background: rgba(20, 20, 22, 0.03);
}
.expo-send {
  width: 46px;
  height: 46px;
  border-radius: 50%;
  border: 0;
  background: var(--ex-accent);
  color: #fff;
  font-size: 1.15rem;
  cursor: pointer;
  flex-shrink: 0;
  position: relative;
  box-shadow: 0 0 24px var(--ex-accent-dim);
  transition: transform 0.18s ease, box-shadow 0.18s ease, filter 0.18s ease;
}
.expo-send-ico { position: relative; z-index: 1; }
.expo-send-ring {
  position: absolute;
  inset: -4px;
  border-radius: 50%;
  border: 2px solid transparent;
  opacity: 0;
  transition: opacity 0.2s;
}
.expo-send.is-ready .expo-send-ring {
  opacity: 1;
  border-color: rgba(255, 90, 31, 0.45);
  animation: sendRing 1.6s ease-out infinite;
}
@keyframes sendRing {
  0% { transform: scale(0.92); opacity: 0.9; }
  100% { transform: scale(1.18); opacity: 0; }
}
@media (prefers-reduced-motion: reduce) {
  .expo-send.is-ready .expo-send-ring { animation: none; opacity: 0.7; }
}
.expo-send:hover:not(:disabled) {
  transform: translateY(-1px) scale(1.04);
  box-shadow: 0 0 32px var(--ex-accent-dim);
  filter: brightness(1.05);
}
.expo-send:active:not(:disabled) { transform: scale(0.96); }
.expo-send:disabled { opacity: 0.5; cursor: wait; }
.expo-files {
  margin-top: 0.4rem;
  font-size: 0.72rem;
  color: var(--ex-mute);
  font-family: var(--ex-mono);
}

.expo-result {
  margin-top: 1.25rem;
  text-align: left;
  padding: 1.1rem 1.15rem;
  border-radius: 14px;
  border: 1px solid var(--ex-line);
  background: var(--ex-panel);
  display: none;
}
.expo-result.visible { display: block; }
.expo-result.zarox-reveal-in {
  animation: zaroxReveal 0.55s ease both;
}
@keyframes zaroxReveal {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: none; }
}
@media (prefers-reduced-motion: reduce) {
  .expo-result.zarox-reveal-in { animation: none; }
}
.expo-result .total {
  font-family: var(--ex-display);
  font-size: clamp(1.55rem, 3vw, 1.9rem);
  font-weight: 700;
  margin: 0.45rem 0;
  color: var(--ex-accent);
  letter-spacing: -0.02em;
}
.expo-result .margin { color: var(--ex-mute); font-size: 0.88rem; }
.expo-result .note {
  color: var(--ex-mute);
  font-size: 0.86rem;
  margin-top: 0.65rem;
}
.expo-result.is-error {
  border-color: rgba(255, 90, 31, 0.35);
}
.expo-error .eq-h { color: var(--ex-accent); }

.expo-examples {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.4rem;
  margin: 0 auto 1rem;
  max-width: 640px;
}
.expo-ex {
  border: 1px solid var(--ex-line);
  background: transparent;
  color: var(--ex-mute);
  border-radius: 999px;
  padding: 0.28rem 0.7rem;
  font-family: var(--ex-mono);
  font-size: 0.72rem;
  cursor: pointer;
  transition: color 0.15s, border-color 0.15s;
}
.expo-ex:hover {
  color: var(--ex-ink);
  border-color: rgba(255, 90, 31, 0.4);
}

.expo-budget-row {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  margin: 0.55rem 0 0.15rem;
  position: relative;
  z-index: 1;
}
.expo-budget-row label {
  font-family: var(--ex-mono);
  font-size: 0.72rem;
  color: var(--ex-mute);
  white-space: nowrap;
}
.expo-budget-row input {
  flex: 1;
  min-width: 0;
  border: 1px solid var(--ex-line);
  background: rgba(255, 255, 255, 0.02);
  color: var(--ex-ink);
  border-radius: 12px;
  padding: 0.45rem 0.7rem;
  font: inherit;
  font-size: 0.9rem;
}
[data-theme="light"] .expo-budget-row input {
  background: #f4f5f7;
}
.expo-budget-row input:focus {
  outline: none;
  border-color: rgba(255, 90, 31, 0.45);
}

.expo-progress {
  display: flex;
  justify-content: center;
  gap: 0.55rem;
  margin: 0.9rem auto 0;
  font-family: var(--ex-mono);
  font-size: 0.72rem;
  color: var(--ex-mute);
}
.expo-progress span {
  padding: 0.2rem 0.55rem;
  border-radius: 999px;
  border: 1px solid var(--ex-line);
}
.expo-progress .is-on {
  color: var(--ex-ink);
  border-color: rgba(255, 90, 31, 0.35);
}
.expo-progress .is-now {
  color: var(--ex-accent);
  border-color: var(--ex-accent);
}

.expo-items .eq-count {
  font-family: var(--ex-mono);
  font-weight: 400;
  color: var(--ex-mute);
  font-size: 0.75rem;
}
.expo-link {
  margin-top: 0.55rem;
  border: 0;
  background: transparent;
  color: var(--ex-accent);
  font: inherit;
  font-size: 0.82rem;
  cursor: pointer;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.expo-ctas {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-top: 1rem;
}
.expo-cta {
  border: 1px solid var(--ex-line);
  background: transparent;
  color: var(--ex-ink);
  border-radius: 999px;
  padding: 0.45rem 0.9rem;
  font-family: var(--ex-mono);
  font-size: 0.76rem;
  cursor: pointer;
  text-decoration: none;
  transition: border-color 0.15s, color 0.15s, background 0.15s;
}
.expo-cta.is-primary {
  border-color: rgba(255, 90, 31, 0.55);
  background: rgba(255, 90, 31, 0.14);
  color: var(--ex-ink);
}
.expo-cta:hover {
  border-color: var(--ex-accent);
  color: var(--ex-accent);
}
.expo-cta.is-primary:hover {
  background: rgba(255, 90, 31, 0.22);
  color: var(--ex-ink);
}
.expo-cta:disabled { opacity: 0.45; cursor: not-allowed; }
.expo-cta-hint {
  margin-top: 0.45rem;
  font-size: 0.75rem;
  color: var(--ex-mute);
}

/* ── Demo cases (interactive cards) ───────────────────────── */
.expo-demos {
  margin: 1.25rem auto 0;
  max-width: 920px;
  text-align: left;
}
.expo-demos-collapse {
  border: 1px solid var(--ex-line);
  border-radius: 14px;
  padding: 0.55rem 0.85rem 0.75rem;
  background: rgba(255, 255, 255, 0.02);
}
.expo-demos-collapse > summary {
  cursor: pointer;
  list-style: none;
  font-family: var(--ex-display);
  font-weight: 600;
  font-size: 0.95rem;
  padding: 0.25rem 0;
}
.expo-demos-collapse > summary::-webkit-details-marker { display: none; }
.expo-demos-collapse[open] > summary { margin-bottom: 0.55rem; }
.expo-demos-head {
  margin-bottom: 1.1rem;
}
.expo-demos-head h2 {
  font-family: var(--ex-display);
  font-size: 1.2rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin: 0 0 0.35rem;
}
.expo-demos-head p {
  margin: 0;
  color: var(--ex-mute);
  font-size: 0.9rem;
  line-height: 1.45;
  max-width: 42rem;
}
.expo-demo-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.85rem;
}
.expo-demo-card {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.45rem;
  text-align: left;
  padding: 1.05rem 1.1rem 0.95rem;
  border: 1px solid var(--ex-line);
  border-radius: 18px;
  background:
    radial-gradient(140px 70px at 100% 0%, rgba(255, 90, 31, 0.14), transparent 70%),
    var(--ex-panel);
  color: inherit;
  font: inherit;
  cursor: pointer;
  transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
  box-shadow: 0 10px 28px rgba(0, 0, 0, 0.18);
}
.expo-demo-card:hover {
  transform: translateY(-3px);
  border-color: rgba(255, 90, 31, 0.45);
  box-shadow: 0 16px 36px rgba(0, 0, 0, 0.28);
}
.expo-demo-card:focus-visible {
  outline: 2px solid var(--ex-accent);
  outline-offset: 2px;
}
.expo-demo-badge {
  display: inline-flex;
  align-items: center;
  padding: 0.18rem 0.55rem;
  border-radius: 999px;
  border: 1px solid var(--ex-line);
  background: rgba(255, 255, 255, 0.04);
  color: var(--ex-mute);
  font-family: var(--ex-mono);
  font-size: 0.68rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.expo-demo-badge.is-risk {
  color: #ffb4a2;
  border-color: rgba(255, 90, 31, 0.45);
  background: rgba(255, 90, 31, 0.12);
}
.expo-demo-title {
  font-family: var(--ex-display);
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.3;
}
.expo-demo-price {
  color: var(--ex-accent);
  font-family: var(--ex-mono);
  font-size: 0.95rem;
  font-weight: 600;
}
.expo-demo-sum {
  font-style: normal;
  color: var(--ex-mute);
  font-size: 0.82rem;
  line-height: 1.4;
  min-height: 2.3em;
}
.expo-demo-cta {
  margin-top: auto;
  padding-top: 0.35rem;
  color: var(--ex-ink);
  font-size: 0.8rem;
  opacity: 0.72;
}
.expo-demo-card:hover .expo-demo-cta { opacity: 1; color: var(--ex-accent); }
.expo-demos-empty {
  color: var(--ex-mute);
  font-size: 0.9rem;
}
.expo-demo-detail {
  margin-top: 1rem;
  padding: 1.15rem 1.2rem 1.1rem;
  border: 1px solid rgba(255, 90, 31, 0.28);
  border-radius: 18px;
  background: var(--ex-panel);
  box-shadow: 0 14px 40px rgba(0, 0, 0, 0.22);
}
.expo-demo-detail-head {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: flex-start;
  margin-bottom: 0.85rem;
}
.expo-demo-detail-head h3 {
  margin: 0 0 0.25rem;
  font-family: var(--ex-display);
  font-size: 1.15rem;
}
.expo-demo-detail-head p {
  margin: 0;
  color: var(--ex-mute);
  font-size: 0.88rem;
}
.expo-demo-detail-total {
  color: var(--ex-accent);
  font-family: var(--ex-mono);
  font-size: 1.15rem;
  font-weight: 700;
  white-space: nowrap;
}
.expo-demo-plan {
  display: block;
  width: auto;
  max-width: min(360px, 100%);
  max-height: 200px;
  object-fit: contain;
  margin: 0 0 0.9rem;
  border-radius: 12px;
  border: 1px solid var(--ex-line);
  background: #0d0d0d;
}
.expo-demo-materials ul,
.expo-demo-risks ul {
  list-style: none;
  margin: 0.35rem 0 0;
  padding: 0;
}
.expo-demo-materials li {
  display: flex;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 0.35rem 0;
  border-bottom: 1px solid var(--ex-line);
  font-size: 0.86rem;
  color: var(--ex-mute);
}
.expo-demo-materials li b {
  color: var(--ex-ink);
  font-weight: 600;
  font-family: var(--ex-mono);
  font-size: 0.8rem;
  white-space: nowrap;
}
.expo-demo-risks li {
  padding: 0.3rem 0;
  color: #ffb4a2;
  font-size: 0.86rem;
}
.expo-demo-ok {
  margin: 0.55rem 0 0;
  color: #3ecf8e;
  font-size: 0.88rem;
}
[data-theme="light"] .expo-demo-card {
  background:
    radial-gradient(140px 70px at 100% 0%, rgba(224, 72, 18, 0.1), transparent 70%),
    #fffdf9;
  box-shadow: 0 10px 24px rgba(40, 30, 20, 0.08);
}
[data-theme="light"] .expo-demo-detail {
  background: #fffdf9;
  box-shadow: 0 12px 28px rgba(40, 30, 20, 0.1);
}
[data-theme="light"] .expo-demo-badge.is-risk {
  color: #b33a14;
}

.expo-history {
  margin-top: 1.75rem;
  text-align: left;
  max-width: 640px;
  margin-left: auto;
  margin-right: auto;
}
.expo-history h2 {
  font-family: var(--ex-display);
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 0.55rem;
}
.expo-history ul {
  list-style: none;
  border: 1px solid var(--ex-line);
  border-radius: 14px;
  overflow: hidden;
  background: var(--ex-panel);
}
.expo-history li + li { border-top: 1px solid var(--ex-line); }
.expo-history button {
  width: 100%;
  display: flex;
  justify-content: space-between;
  gap: 0.75rem;
  border: 0;
  background: transparent;
  color: inherit;
  text-align: left;
  padding: 0.7rem 0.85rem;
  cursor: pointer;
  font: inherit;
  font-size: 0.86rem;
}
.expo-history button:hover { background: rgba(255, 90, 31, 0.06); }
.expo-history strong {
  color: var(--ex-accent);
  font-family: var(--ex-mono);
  font-size: 0.78rem;
  white-space: nowrap;
}
.expo-history-more {
  display: inline-block;
  margin-top: 0.7rem;
  color: var(--ex-mute);
  text-decoration: none;
  font-family: var(--ex-mono);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.expo-history-more:hover { color: var(--ex-accent); }
.expo-guest-gate {
  margin-top: 0.85rem;
  padding: 1rem 1.05rem;
  border: 1px solid var(--ex-line);
  border-radius: 14px;
  background: var(--ex-panel);
  text-align: left;
}
.expo-guest-gate p { color: var(--ex-mute); line-height: 1.5; margin: 0 0 0.75rem; }
.expo-guest-gate a {
  color: var(--ex-accent);
  text-decoration: none;
  font-family: var(--ex-mono);
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.expo-feats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.85rem;
  margin-top: 1.25rem;
  text-align: left;
  align-items: start;
  justify-items: center;
  padding: 0.25rem 0 0.5rem;
}
.expo-sticker {
  --tilt: 0deg;
  --sticker-bg: #1a1a1c;
  --sticker-ink: #f5f5f5;
  --sticker-mute: #a0a0a8;
  --sticker-edge: rgba(255, 90, 31, 0.45);
  position: relative;
  width: 100%;
  max-width: 180px;
  min-height: 110px;
  padding: 1rem 0.85rem 0.85rem;
  background:
    radial-gradient(120px 60px at 15% 0%, rgba(255,255,255,0.12), transparent 70%),
    var(--sticker-bg);
  color: var(--sticker-ink);
  border: 2px solid var(--sticker-edge);
  border-radius: 6px 18px 14px 12px;
  box-shadow:
    0 1px 0 rgba(255,255,255,0.12) inset,
    4px 14px 0 rgba(0,0,0,0.35),
    0 22px 40px rgba(0,0,0,0.4);
  transform: rotate(var(--tilt));
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}
.expo-sticker.s-fast {
  --sticker-bg: #2a160e;
  --sticker-edge: #ff5a1f;
}
.expo-sticker.s-smart {
  --sticker-bg: #121826;
  --sticker-edge: #5b8cff;
}
.expo-sticker.s-exact {
  --sticker-bg: #142018;
  --sticker-edge: #3ecf8e;
}
.expo-sticker:hover {
  transform: rotate(0deg) translateY(-8px) scale(1.04);
  box-shadow:
    0 1px 0 rgba(255,255,255,0.16) inset,
    2px 8px 0 rgba(0,0,0,0.3),
    0 28px 48px rgba(0,0,0,0.45);
  z-index: 2;
}
.sticker-tape {
  position: absolute;
  top: -10px;
  left: 50%;
  width: 68px;
  height: 20px;
  margin-left: -34px;
  background: linear-gradient(180deg, rgba(255, 230, 170, 0.95), rgba(255, 160, 70, 0.75));
  border-radius: 2px;
  box-shadow: 0 2px 4px rgba(0,0,0,0.25);
  transform: rotate(-3deg);
  opacity: 0.95;
}
.sticker-ico {
  display: grid;
  place-items: center;
  width: 2.1rem;
  height: 2.1rem;
  margin-bottom: 0.55rem;
  border-radius: 10px;
  background: rgba(255,255,255,0.08);
  font-size: 1.2rem;
  line-height: 1;
}
.expo-sticker strong {
  display: block;
  font-family: var(--ex-display);
  font-weight: 700;
  font-size: 1.15rem;
  margin-bottom: 0.3rem;
  letter-spacing: -0.02em;
}
.expo-sticker p {
  color: var(--sticker-mute);
  font-size: 0.84rem;
  line-height: 1.4;
}
[data-theme="light"] .expo-sticker.s-fast {
  --sticker-bg: #ffe8dc;
  --sticker-ink: #1a120e;
  --sticker-mute: #6a4a3a;
  --sticker-edge: #e04812;
}
[data-theme="light"] .expo-sticker.s-smart {
  --sticker-bg: #e4ecff;
  --sticker-ink: #121826;
  --sticker-mute: #4a5878;
  --sticker-edge: #3d6fe0;
}
[data-theme="light"] .expo-sticker.s-exact {
  --sticker-bg: #ddf5e8;
  --sticker-ink: #102018;
  --sticker-mute: #3f6a52;
  --sticker-edge: #1fa86a;
}
[data-theme="light"] .expo-sticker {
  box-shadow:
    0 1px 0 rgba(255,255,255,0.95) inset,
    5px 12px 0 rgba(40, 30, 20, 0.08),
    0 18px 32px rgba(40, 30, 20, 0.12);
}
[data-theme="light"] .expo-sticker:hover {
  box-shadow:
    0 1px 0 rgba(255,255,255,0.98) inset,
    2px 6px 0 rgba(40, 30, 20, 0.1),
    0 22px 36px rgba(40, 30, 20, 0.16);
}
[data-theme="light"] .sticker-tape {
  background: linear-gradient(180deg, #ffe9b0, #ffb45a);
}
[data-theme="light"] .sticker-ico {
  background: rgba(0,0,0,0.06);
}
[data-theme="light"] body.expo-page {
  background:
    radial-gradient(900px 420px at 70% -10%, rgba(224, 72, 18, 0.1), transparent 62%),
    radial-gradient(700px 380px at 8% 18%, rgba(90, 120, 200, 0.07), transparent 58%),
    linear-gradient(180deg, #f7f3ec 0%, #f4f1ec 48%, #f1eee8 100%);
}
[data-theme="light"] .expo-main {
  background: transparent;
}
[data-theme="dark"] body.expo-page,
[data-theme="dark"] .expo-shell,
body.expo-page:not([data-theme]) {
  background: var(--ex-bg);
}

@media (max-width: 860px) {
  .expo-shell { grid-template-columns: 1fr; }
  .expo-nav {
    border-right: 0;
    border-bottom: 1px solid var(--ex-line);
    flex-direction: row;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.55rem;
    padding: 0.7rem 0.75rem;
  }
  .expo-nav-list { flex-direction: row; flex-wrap: wrap; width: 100%; gap: 0.15rem; }
  .expo-nav-item { padding: 0.4rem 0.55rem; font-size: 0.8rem; }
  .expo-nav-home {
    margin-top: 0;
    border-top: 0;
    padding-top: 0.4rem !important;
    border-radius: 10px !important;
  }
  .expo-nav-foot {
    width: 100%;
    flex-direction: row;
    align-items: center;
    gap: 0.75rem;
    margin-top: 0;
  }
  .expo-demo-grid { grid-template-columns: 1fr; }
  .expo-demo-detail-head { flex-direction: column; gap: 0.35rem; }
  .expo-feats {
    grid-template-columns: 1fr;
    gap: 1.35rem;
    margin-top: 1.75rem;
  }
  .expo-sticker {
    max-width: 260px;
    transform: rotate(0deg);
  }
    .expo-main { padding: 0.65rem 0.85rem 1.75rem; }
  .expo-hero { padding: 0.35rem 0 1.25rem; }
  .expo-examples { margin-bottom: 0.75rem; }
  .expo-ctas { gap: 0.35rem; }
  .expo-history { margin-top: 1.25rem; }
}

@media (max-width: 480px) {
  .expo-composer { border-radius: 14px; padding: 0.65rem 0.7rem 0.55rem; }
  .expo-composer textarea { font-size: 16px; min-height: 3.4rem; }
  .expo-send { width: 38px; height: 38px; }
  .expo-top { flex-wrap: wrap; gap: 0.5rem; }
  .expo-dropzone span { padding: 1.4rem 1.6rem; font-size: 0.92rem; text-align: center; }
  .expo-budget-row { flex-direction: column; align-items: stretch; gap: 0.35rem; }
  .ew-zarox { letter-spacing: 0.18em; font-size: 1.85rem; }
  .expo-result .total { font-size: 1.45rem; }
}