/* CharacterOS preview — shared CSS */

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background: var(--bg-grad);
  color: #fff;
  font-family: 'Pretendard', -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
  font-feature-settings: "tnum";
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
  line-height: 1.55;
}
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; border: 0; background: none; color: inherit; }
img { max-width: 100%; }

:root {
  --text-1: #fff; --text-2: #aaa; --text-3: #888; --text-4: #666;
  --danger: #ff6b6b; --warning: #ffaa44; --success: #22c55e;
  --border: rgba(255,255,255,0.06);
  --border-strong: rgba(255,255,255,0.12);
  --radius-sm: 8px; --radius: 14px; --radius-lg: 20px;
}

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

:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

/* ─── Layout ─── */
.app { display: grid; grid-template-columns: 240px 1fr; min-height: 100vh; }
@media (max-width: 1023px) { .app { grid-template-columns: 1fr; padding-bottom: 64px; } }

/* ─── Sidebar ─── */
.sidebar {
  border-right: 1px solid var(--border);
  padding: 20px 14px;
  position: sticky; top: 0; align-self: start;
  height: 100vh; overflow-y: auto;
  display: flex; flex-direction: column;
  gap: 18px;
}
.sidebar__brand {
  display: flex; align-items: center; gap: 8px;
  font-weight: 800; font-size: 17px; padding: 4px 10px;
}
.sidebar__brand::before {
  content: ""; width: 8px; height: 8px; border-radius: 50%;
  background: var(--primary); box-shadow: 0 0 10px var(--primary);
}
.sidebar__group { display: flex; flex-direction: column; gap: 2px; }
.sidebar__title {
  font-size: 11px; font-weight: 700; letter-spacing: 0.08em;
  color: var(--text-3); text-transform: uppercase; padding: 8px 10px;
}
.sidebar__link {
  display: flex; align-items: center; gap: 10px;
  padding: 8px 10px; border-radius: 10px;
  font-size: 14px; color: var(--text-2);
  transition: background 120ms, color 120ms;
}
.sidebar__link:hover { background: var(--primary-soft); color: var(--text-1); }
.sidebar__link.is-active { background: var(--primary-soft); color: var(--primary); font-weight: 600; }
.sidebar__link .badge {
  margin-left: auto;
  background: var(--elevated);
  font-size: 11px; padding: 1px 7px; border-radius: 999px;
}
.sidebar__divider { border-top: 1px solid var(--border); margin: 4px 8px; }

.sidebar__toggle {
  margin-top: auto;
  background: var(--surface);
  border: 1px solid var(--border-strong);
  border-radius: 999px;
  padding: 6px;
  display: flex; gap: 4px;
}
.sidebar__toggle a {
  flex: 1; text-align: center; padding: 6px 8px;
  font-size: 12px; font-weight: 600; border-radius: 999px;
  color: var(--text-3);
}
.sidebar__toggle a.is-active {
  background: var(--primary); color: var(--on-primary);
}

@media (max-width: 1023px) {
  .sidebar {
    height: 64px; width: 100%; padding: 0;
    flex-direction: row; align-items: center;
    border-top: 1px solid var(--border); border-right: 0;
    position: fixed; bottom: 0; left: 0; top: auto;
    background: rgba(0,0,0,0.85); backdrop-filter: blur(12px);
    z-index: 50;
  }
  .sidebar__brand, .sidebar__title, .sidebar__divider, .sidebar__toggle { display: none; }
  .sidebar__group { flex-direction: row; flex: 1; justify-content: space-around; }
  .sidebar__link { flex-direction: column; padding: 6px 4px; font-size: 10px; gap: 2px; }
  .sidebar__link .badge { display: none; }
}

/* ─── Main ─── */
.main { padding: 20px 32px 60px; min-width: 0; }
@media (max-width: 767px) { .main { padding: 16px 16px 80px; } }

/* ─── Top header (search bar) ─── */
.topbar {
  position: sticky; top: 0; z-index: 30;
  display: flex; align-items: center; gap: 16px;
  padding: 12px 0 16px;
  background: linear-gradient(to bottom, rgba(10,10,10,0.92) 60%, transparent);
  backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px);
  margin: -20px -32px 16px;
  padding: 16px 32px;
}
@media (max-width: 767px) { .topbar { margin: -16px -16px 12px; padding: 12px 16px; } }
.search {
  flex: 1; max-width: 720px;
  display: flex; align-items: center; gap: 8px;
  background: var(--surface);
  border: 1px solid var(--border-strong);
  border-radius: 999px;
  padding: 10px 18px;
  transition: border-color 120ms, box-shadow 120ms;
}
.search:focus-within { border-color: var(--primary); box-shadow: var(--primary-glow); }
.search input {
  background: transparent; border: 0; outline: none; color: var(--text-1);
  flex: 1; font-size: 14px; font-family: inherit;
}
.search input::placeholder { color: var(--text-4); }
.topbar__right { display: flex; align-items: center; gap: 10px; }

/* ─── Buttons ─── */
.btn {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 9px 16px; border-radius: 10px;
  font-weight: 600; font-size: 14px;
  border: 1px solid transparent;
  transition: transform 200ms, box-shadow 200ms, background 200ms, border-color 200ms;
  white-space: nowrap;
}
.btn--primary { background: var(--primary); color: var(--on-primary); }
.btn--primary:hover { transform: scale(1.04); box-shadow: var(--primary-glow); }
.btn--outline { background: transparent; color: var(--text-1); border-color: var(--border-strong); }
.btn--outline:hover { border-color: var(--text-1); }
.btn--ghost { background: var(--surface); color: var(--text-2); border-color: var(--border); }
.btn--ghost:hover { color: var(--text-1); border-color: var(--border-strong); }
.btn--lg { padding: 13px 24px; font-size: 15px; border-radius: 12px; }
.btn--sm { padding: 6px 12px; font-size: 13px; border-radius: 8px; }

/* ─── Chip ─── */
.chip {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 5px 12px; border-radius: 999px;
  background: var(--surface); border: 1px solid var(--border);
  font-size: 12px; font-weight: 500;
  color: var(--text-2);
  white-space: nowrap;
}
.chip--primary { background: var(--primary-soft); border-color: var(--primary-stroke); color: var(--primary); }
.chip--accent { background: var(--accent-soft); border-color: var(--accent-stroke); color: var(--accent); }
.chip--danger { background: rgba(255,107,107,0.1); border-color: rgba(255,107,107,0.3); color: var(--danger); }
.chip--clickable { cursor: pointer; transition: background 120ms; }
.chip--clickable:hover { background: var(--primary-soft); color: var(--primary); }
.chip__dot { width: 6px; height: 6px; border-radius: 50%; background: var(--primary); animation: pulse 2s ease-in-out infinite; }

@keyframes pulse {
  0%, 100% { opacity: 0.6; }
  50% { opacity: 1; }
}

/* ─── Hero band (small) ─── */
.hero-band {
  display: flex; flex-direction: column; gap: 8px;
  padding: 8px 0 20px;
}
.hero-band__title { font-size: clamp(22px, 3vw, 30px); font-weight: 800; letter-spacing: -0.02em; margin: 0; }
.hero-band__title .lime { color: var(--primary); text-shadow: 0 0 24px rgba(163,255,69,0.3); }
.hero-band__sub { color: var(--text-2); font-size: 14px; margin: 0; }

/* ─── Cat chips row ─── */
.cat-row {
  display: flex; gap: 8px; overflow-x: auto;
  padding: 4px 0 16px;
  scroll-snap-type: x mandatory;
}
.cat-row .chip { scroll-snap-align: start; }
.cat-row::-webkit-scrollbar { display: none; }

/* ─── Section ─── */
.section { margin-bottom: 36px; }
.section__hd { display: flex; align-items: center; gap: 10px; margin-bottom: 14px; }
.section__hd h2 { font-size: 18px; font-weight: 700; margin: 0; }
.section__hd .more { margin-left: auto; font-size: 13px; color: var(--text-3); }
.section__hd .more:hover { color: var(--text-1); }

/* ─── Character card ─── */
.cards { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
@media (max-width: 1279px) { .cards { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 767px) { .cards { grid-template-columns: repeat(2, 1fr); gap: 12px; } }

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px;
  display: flex; flex-direction: column; gap: 10px;
  position: relative;
  overflow: hidden;
  transition: transform 200ms, border-color 200ms;
  cursor: pointer;
}
.card:hover { transform: translateY(-6px); border-color: var(--primary-stroke); }
.card:hover .card__overlay { opacity: 1; }
.card__avatar {
  width: 100%; aspect-ratio: 1/1;
  background: var(--elevated);
  border-radius: var(--radius-sm);
  display: grid; place-items: center;
  font-size: 56px;
}
.card__name { font-size: 15px; font-weight: 700; }
.card__tag { font-size: 12px; color: var(--text-3); }
.card__meta { display: flex; gap: 10px; font-size: 11px; color: var(--text-3); }
.card__cats { display: flex; gap: 6px; flex-wrap: wrap; }
.card__overlay {
  position: absolute; inset: 0;
  background: linear-gradient(to top, rgba(0,0,0,0.92) 30%, transparent 80%);
  padding: 14px;
  display: flex; align-items: flex-end;
  font-size: 12px; color: var(--text-2);
  opacity: 0; transition: opacity 200ms;
  pointer-events: none;
}
.card__consistency {
  position: absolute; top: 10px; right: 10px;
  background: rgba(0,0,0,0.6); backdrop-filter: blur(4px);
  border: 1px solid var(--primary-stroke);
  color: var(--primary);
  font-size: 10px; font-weight: 700;
  padding: 3px 8px; border-radius: 999px;
}

/* Editor's pick (large) */
.cards--editor { grid-template-columns: repeat(3, 1fr); }
@media (max-width: 1023px) { .cards--editor { grid-template-columns: 1fr; } }
.card--editor { flex-direction: row; min-height: 200px; padding: 18px; gap: 18px; }
.card--editor .card__avatar { width: 140px; aspect-ratio: 1/1; flex-shrink: 0; font-size: 72px; }
.card--editor .card__body { display: flex; flex-direction: column; gap: 8px; flex: 1; min-width: 0; }
.card--editor .card__pick { font-size: 12px; color: var(--accent); font-weight: 600; }

/* Continue chat (horizontal scroll) */
.cards--continue { display: flex; gap: 14px; overflow-x: auto; padding-bottom: 8px; }
.cards--continue .card {
  min-width: 320px; flex-direction: row; gap: 12px;
  padding: 12px;
}
.cards--continue .card__avatar { width: 80px; height: 80px; aspect-ratio: 1/1; font-size: 38px; }

/* ─── Chat layout ─── */
.chat-layout { display: grid; grid-template-columns: 1fr 320px; gap: 16px; }
@media (max-width: 1023px) { .chat-layout { grid-template-columns: 1fr; } }
.chat {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  display: flex; flex-direction: column;
  height: calc(100vh - 120px); min-height: 600px;
  overflow: hidden;
}
.chat__header {
  padding: 14px 18px; border-bottom: 1px solid var(--border);
  display: flex; align-items: center; gap: 10px;
}
.chat__header-name { font-weight: 700; }
.chat__header-meta { color: var(--text-3); font-size: 12px; flex: 1; }

.chat__body { flex: 1; overflow-y: auto; padding: 16px 18px; display: flex; flex-direction: column; gap: 12px; }
.chat__sys-marker {
  align-self: center; padding: 4px 12px;
  font-size: 11px; color: var(--text-4);
}
.msg {
  max-width: 78%; padding: 10px 14px; border-radius: 14px;
  position: relative;
  font-size: 14px; line-height: 1.6;
  transition: transform 160ms;
}
.msg__role { font-size: 11px; color: var(--text-3); margin-bottom: 4px; }
.msg em { color: var(--text-3); font-style: italic; display: block; margin-bottom: 4px; }
.msg--char { background: var(--elevated); border: 1px solid var(--border); align-self: flex-start; }
.msg--user { background: var(--primary-soft); border: 1px solid var(--primary-stroke); align-self: flex-end; }
.msg--memory {
  align-self: center; max-width: 90%;
  background: var(--accent-soft); border: 1px dashed var(--accent-stroke);
  font-size: 12px; color: var(--accent);
  padding: 6px 14px;
}
.msg__actions {
  display: flex; gap: 4px; opacity: 0;
  transition: opacity 160ms;
  margin-top: 6px;
}
.msg:hover .msg__actions { opacity: 1; }
.msg__action-btn {
  background: var(--surface); border: 1px solid var(--border);
  padding: 4px 8px; border-radius: 8px;
  font-size: 11px; color: var(--text-3);
}
.msg__action-btn:hover { color: var(--primary); border-color: var(--primary-stroke); }
.msg__streaming::after {
  content: " ●●●";
  color: var(--primary); animation: dots 1.2s steps(4) infinite;
}
@keyframes dots { 25%{opacity:0.3} 50%{opacity:0.6} 100%{opacity:1} }

.chat__input {
  border-top: 1px solid var(--border);
  padding: 12px 14px;
}
.input-pill {
  display: flex; align-items: center; gap: 8px;
  background: var(--elevated); border: 1px solid var(--border);
  border-radius: 999px;
  padding: 6px 6px 6px 18px;
}
.input-pill input {
  flex: 1; background: transparent; border: 0; outline: none;
  color: var(--text-1); font-size: 14px; font-family: inherit;
}
.input-pill__send {
  width: 32px; height: 32px; border-radius: 50%;
  background: var(--primary); color: var(--on-primary);
  display: grid; place-items: center; font-weight: 700;
  transition: transform 160ms, box-shadow 160ms;
}
.input-pill__send:hover { transform: scale(1.08); box-shadow: var(--primary-glow); }
.chat__input-meta {
  font-size: 11px; color: var(--text-4);
  padding: 6px 4px 0;
}

/* ─── Side panel (chat right pane) ─── */
.side-panel {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  display: flex; flex-direction: column;
  height: calc(100vh - 120px); min-height: 600px;
  overflow: hidden;
}
.side-panel__tabs {
  display: flex; gap: 0; border-bottom: 1px solid var(--border);
}
.side-panel__tab {
  flex: 1; padding: 12px;
  font-size: 13px; color: var(--text-3);
  border-bottom: 2px solid transparent;
}
.side-panel__tab:hover { color: var(--text-1); }
.side-panel__tab.is-active { color: var(--primary); border-bottom-color: var(--primary); }
.side-panel__body { flex: 1; overflow-y: auto; padding: 14px; display: flex; flex-direction: column; gap: 10px; }

/* ─── Branch tree (SVG inline) ─── */
.branch-svg { width: 100%; height: 100%; }
.branch-svg .node-active { fill: var(--primary); filter: drop-shadow(0 0 8px var(--primary)); }
.branch-svg .node-locked { fill: var(--elevated); stroke: var(--border-strong); }
.branch-svg .node { fill: var(--surface); stroke: var(--border-strong); stroke-width: 1.5; }
.branch-svg .edge { stroke: var(--border-strong); stroke-width: 1.5; }
.branch-svg text { fill: var(--text-2); font-size: 12px; font-family: inherit; }

/* ─── Timeline ─── */
.timeline { position: relative; padding-left: 28px; display: flex; flex-direction: column; gap: 18px; }
.timeline::before {
  content: ""; position: absolute; left: 8px; top: 6px; bottom: 6px;
  width: 2px; background: var(--border-strong);
}
.timeline__node {
  position: relative;
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px 14px;
}
.timeline__node::before {
  content: ""; position: absolute; left: -26px; top: 16px;
  width: 14px; height: 14px; border-radius: 50%;
  background: var(--primary); border: 3px solid var(--bg);
  box-shadow: var(--primary-glow);
}
.timeline__node--accent::before { background: var(--accent); }
.timeline__node--neutral::before { background: var(--text-4); box-shadow: none; }
.timeline__hd { display: flex; align-items: baseline; gap: 8px; margin-bottom: 4px; }
.timeline__turn { font-size: 12px; font-weight: 700; color: var(--primary); letter-spacing: 0.04em; }
.timeline__title { font-weight: 600; font-size: 14px; }
.timeline__meta { font-size: 11px; color: var(--text-3); margin-top: 4px; }

/* ─── Stat cards ─── */
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
@media (max-width: 1023px) { .stats { grid-template-columns: repeat(2, 1fr); } }
.stat {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 18px;
}
.stat__label { font-size: 11px; color: var(--text-3); text-transform: uppercase; letter-spacing: 0.06em; }
.stat__value { font-size: 26px; font-weight: 800; color: var(--primary); margin-top: 6px; }
.stat__delta { font-size: 12px; color: var(--success); margin-top: 4px; }

/* ─── Pricing ─── */
.price-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; max-width: 1080px; margin: 0 auto; }
@media (max-width: 1023px) { .price-grid { grid-template-columns: 1fr; } }
.price-card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 28px;
  display: flex; flex-direction: column; gap: 14px;
}
.price-card--featured { border-color: var(--primary); box-shadow: var(--primary-glow); }
.price-card__name { font-size: 14px; font-weight: 700; color: var(--text-2); }
.price-card__price { font-size: 36px; font-weight: 800; letter-spacing: -0.02em; }
.price-card__price small { font-size: 14px; color: var(--text-3); font-weight: 500; }
.price-card__list { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 8px; }
.price-card__list li { font-size: 14px; color: var(--text-2); display: flex; align-items: baseline; gap: 8px; }
.price-card__list li::before { content: "✓"; color: var(--primary); font-weight: 800; }

/* ─── Login card ─── */
.login-wrap { min-height: 100vh; display: grid; place-items: center; padding: 32px; }
.login-card {
  background: var(--surface);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-lg);
  padding: 32px;
  width: 100%; max-width: 380px;
}
.login-card__brand { display: flex; align-items: center; gap: 8px; font-weight: 800; font-size: 17px; }
.login-card__title { font-size: 22px; font-weight: 700; margin: 16px 0 24px; }
.login-card__btn {
  width: 100%; padding: 13px; border-radius: var(--radius-sm);
  font-weight: 600; font-size: 14px; margin-bottom: 8px;
  border: 1px solid var(--border-strong);
}
.login-card__btn--kakao { background: #FEE500; color: #000; border-color: transparent; }
.login-card__btn--google { background: #fff; color: #000; border-color: transparent; }
.login-card__btn--apple { background: #000; color: #fff; }
.login-card__sep {
  text-align: center; color: var(--text-4); font-size: 12px;
  margin: 16px 0; position: relative;
}
.login-card__sep::before, .login-card__sep::after {
  content: ""; position: absolute; top: 50%; width: 35%; height: 1px;
  background: var(--border);
}
.login-card__sep::before { left: 0; } .login-card__sep::after { right: 0; }
.login-card__field {
  width: 100%; padding: 12px; border-radius: var(--radius-sm);
  background: var(--elevated); border: 1px solid var(--border);
  color: var(--text-1); font-family: inherit; font-size: 14px;
  margin-bottom: 8px;
}
.login-card__field:focus { outline: 0; border-color: var(--primary); }

/* ─── Mobile chat (375 frame) ─── */
.mobile-frame {
  max-width: 375px; margin: 24px auto; min-height: 800px;
  background: var(--surface); border: 1px solid var(--border-strong);
  border-radius: 32px;
  overflow: hidden;
  display: flex; flex-direction: column;
}
.mobile-frame__hd {
  padding: 12px 16px; border-bottom: 1px solid var(--border);
  display: flex; align-items: center; gap: 8px;
}
.mobile-frame__body { flex: 1; padding: 12px; display: flex; flex-direction: column; gap: 8px; overflow-y: auto; }
.mobile-frame__sticky-consistency {
  position: sticky; bottom: 0; left: 0; right: 0;
  background: var(--bg); border-top: 1px solid var(--border);
  padding: 8px 14px; font-size: 11px; color: var(--primary); text-align: center;
}
.mobile-frame__input {
  border-top: 1px solid var(--border); padding: 8px;
}

/* ─── Stepper ─── */
.stepper { display: flex; gap: 0; margin-bottom: 24px; }
.stepper__step {
  flex: 1; padding: 12px;
  font-size: 13px; color: var(--text-3); font-weight: 500;
  border-bottom: 2px solid var(--border);
  text-align: center;
}
.stepper__step.is-active { color: var(--primary); border-bottom-color: var(--primary); font-weight: 700; }
.stepper__step.is-done { color: var(--text-1); border-bottom-color: var(--border-strong); }

.form-row { display: flex; flex-direction: column; gap: 6px; margin-bottom: 16px; }
.form-row label { font-size: 12px; color: var(--text-3); font-weight: 600; text-transform: uppercase; letter-spacing: 0.06em; }
.form-row input, .form-row textarea, .form-row select {
  background: var(--elevated); border: 1px solid var(--border);
  border-radius: var(--radius-sm); padding: 10px 12px;
  color: var(--text-1); font-family: inherit; font-size: 14px;
}
.form-row textarea { min-height: 80px; resize: vertical; }
.form-row input:focus, .form-row textarea:focus, .form-row select:focus { outline: 0; border-color: var(--primary); }

/* ─── Footer ─── */
.footer { padding: 32px; text-align: center; color: var(--text-4); font-size: 12px; border-top: 1px solid var(--border); margin-top: 48px; }
.footer a { color: var(--text-3); margin: 0 6px; }

/* ─── Skeleton ─── */
.skeleton { background: linear-gradient(90deg, var(--surface) 0%, var(--elevated) 50%, var(--surface) 100%); background-size: 200% 100%; animation: shimmer 1.4s linear infinite; border-radius: var(--radius-sm); }
@keyframes shimmer { 0%{background-position:200% 0} 100%{background-position:-200% 0} }