:root {
  --bg: #0e1218;
  --bg-deep: #090c11;
  --panel: rgba(18, 23, 31, 0.84);
  --panel-soft: rgba(21, 27, 36, 0.76);
  --panel-strong: rgba(25, 31, 42, 0.92);
  --line: rgba(255, 255, 255, 0.08);
  --line-strong: rgba(255, 255, 255, 0.14);
  --text: #f3efe6;
  --text-soft: rgba(243, 239, 230, 0.72);
  --text-dim: rgba(243, 239, 230, 0.52);
  --accent: #d6ae58;
  --accent-soft: rgba(214, 174, 88, 0.2);
  --accent-strong: #f0c86c;
  --ok: #78c4a1;
  --bad: #ff7d7d;
  --warn: #ffc96a;
  --shadow: 0 24px 72px rgba(0, 0, 0, 0.34);
  --shadow-soft: 0 12px 28px rgba(0, 0, 0, 0.22);
  --radius-xl: 28px;
  --radius-lg: 20px;
  --radius-md: 16px;
  --radius-sm: 12px;
  --topbar-h: 78px;
  --bottombar-h: 112px;
  --main-max: 1060px;
  --serif: "Iowan Old Style", "Palatino Linotype", "Book Antiqua", "Georgia", serif;
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Consolas, monospace;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html,
body {
  min-height: 100%;
}

body {
  margin: 0;
  color: var(--text);
  font-family: var(--serif);
  background:
    radial-gradient(circle at 12% 20%, rgba(214, 174, 88, 0.10), transparent 28%),
    radial-gradient(circle at 88% 18%, rgba(120, 196, 161, 0.08), transparent 22%),
    radial-gradient(circle at 58% 88%, rgba(255, 125, 125, 0.08), transparent 28%),
    linear-gradient(180deg, #11161e 0%, #0b0f15 100%);
  overflow-x: hidden;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(120deg, rgba(255, 255, 255, 0.02), transparent 45%),
    radial-gradient(circle at 50% 0%, rgba(255, 255, 255, 0.03), transparent 35%);
  mix-blend-mode: screen;
}

button,
input {
  font: inherit;
}

button {
  border: 0;
  cursor: pointer;
}

.hidden {
  display: none !important;
}

.screen {
  min-height: 100vh;
}

.boot-overlay {
  position: fixed;
  inset: 0;
  display: grid;
  place-items: center;
  background:
    radial-gradient(circle at 50% 25%, rgba(214, 174, 88, 0.14), transparent 24%),
    linear-gradient(180deg, rgba(10, 12, 16, 0.98), rgba(10, 12, 16, 0.94));
  z-index: 50;
}

.boot-card {
  display: grid;
  justify-items: center;
  gap: 14px;
  padding: 24px 28px;
  border: 1px solid var(--line);
  border-radius: 26px;
  background: rgba(18, 23, 31, 0.72);
  backdrop-filter: blur(18px);
  box-shadow: var(--shadow);
}

.boot-mark {
  width: 18px;
  height: 18px;
  border-radius: 999px;
  background: radial-gradient(circle at 30% 30%, #fff5d3, var(--accent));
  box-shadow: 0 0 24px rgba(214, 174, 88, 0.42);
  animation: pulse 2.8s ease-in-out infinite;
}

.boot-title {
  font-size: 1.35rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.boot-note {
  color: var(--text-soft);
  font-size: 0.94rem;
}

.auth-screen {
  display: grid;
  place-items: center;
  padding: 28px 20px;
}

.auth-shell {
  width: min(1120px, 100%);
  display: grid;
  grid-template-columns: minmax(280px, 1.05fr) minmax(320px, 0.95fr);
  gap: 20px;
  align-items: center;
}

.auth-hero,
.auth-card,
.composer-card,
.content-card,
.final-panel,
.status-strip {
  border: 1px solid var(--line);
  background: var(--panel);
  backdrop-filter: blur(18px);
  box-shadow: var(--shadow);
}

.auth-hero {
  padding: 28px;
  border-radius: var(--radius-xl);
  background:
    radial-gradient(circle at 12% 0%, rgba(214, 174, 88, 0.12), transparent 34%),
    var(--panel);
}

.brand-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 8px 14px;
  border-radius: 999px;
  border: 1px solid rgba(214, 174, 88, 0.28);
  background: rgba(214, 174, 88, 0.08);
  color: var(--accent-strong);
  font-family: var(--mono);
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.auth-hero h1 {
  margin: 16px 0 12px;
  font-size: clamp(2.2rem, 4vw, 4.2rem);
  line-height: 0.96;
  letter-spacing: -0.04em;
}

.auth-hero-copy {
  margin: 0;
  max-width: 58ch;
  color: var(--text-soft);
  font-size: 1.05rem;
  line-height: 1.68;
}

.auth-rule {
  display: grid;
  gap: 6px;
  margin-top: 20px;
  padding: 16px 18px;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.06);
}

.auth-rule-label {
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-dim);
}

.auth-rule-value {
  color: var(--accent-strong);
  font-size: 1.02rem;
}

.auth-card {
  padding: 20px;
  border-radius: var(--radius-xl);
}

.auth-tabs {
  display: inline-flex;
  gap: 6px;
  padding: 6px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.02);
}

.auth-tab {
  padding: 10px 16px;
  border-radius: 999px;
  background: transparent;
  color: var(--text-soft);
  font-family: var(--mono);
  font-size: 0.74rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  transition: 180ms ease;
}

.auth-tab:hover {
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
}

.auth-tab.active {
  background: rgba(214, 174, 88, 0.16);
  color: var(--text);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.08);
}

.auth-form {
  display: grid;
  gap: 12px;
  margin-top: 18px;
}

.field-label {
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-dim);
}

.text-input {
  width: 100%;
  padding: 14px 16px;
  border-radius: 16px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: rgba(255, 255, 255, 0.03);
  color: var(--text);
  outline: none;
  transition: 180ms ease;
}

.text-input::placeholder {
  color: rgba(243, 239, 230, 0.36);
}

.text-input:focus {
  border-color: rgba(214, 174, 88, 0.42);
  box-shadow: 0 0 0 4px rgba(214, 174, 88, 0.08);
  background: rgba(255, 255, 255, 0.045);
}

.auth-submit {
  margin-top: 4px;
}

.primary-btn {
  display: inline-flex;
  justify-content: center;
  align-items: center;
  gap: 10px;
  padding: 14px 18px;
  border-radius: 16px;
  color: #11151b;
  background: linear-gradient(180deg, #f1d07d, #d6ae58);
  box-shadow: 0 12px 28px rgba(214, 174, 88, 0.24);
  font-weight: 800;
  letter-spacing: 0.03em;
  transition: transform 160ms ease, filter 160ms ease;
}

.primary-btn:hover {
  transform: translateY(-1px);
  filter: brightness(1.04);
}

.primary-btn:active {
  transform: translateY(0);
}

.auth-error {
  min-height: 22px;
  margin-top: 12px;
  color: #ff9797;
  font-size: 0.95rem;
}

.app-screen {
  position: relative;
  min-height: 100vh;
}

.topbar,
.bottombar {
  position: fixed;
  left: 0;
  right: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 20px;
  backdrop-filter: blur(18px);
  background: rgba(14, 18, 24, 0.72);
  border-color: var(--line);
}

.topbar {
  top: 0;
  min-height: var(--topbar-h);
  border-bottom: 1px solid var(--line);
}

.bottombar {
  bottom: 0;
  min-height: var(--bottombar-h);
  flex-direction: column;
  align-items: stretch;
  justify-content: center;
  border-top: 1px solid var(--line);
}

.brand-wrap {
  display: flex;
  align-items: center;
  gap: 14px;
}

.brand-mark {
  width: 18px;
  height: 18px;
  border-radius: 999px;
  background: radial-gradient(circle at 30% 30%, #fff5d3, var(--accent));
  box-shadow: 0 0 24px rgba(214, 174, 88, 0.34);
}

.brand-title {
  font-size: 1.08rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.brand-subtitle {
  color: var(--text-dim);
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.topbar-status {
  display: flex;
  align-items: center;
  gap: 10px;
}

.profile-chip,
.balance-chip {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 14px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.03);
}

.profile-avatar {
  display: grid;
  place-items: center;
  width: 36px;
  height: 36px;
  border-radius: 999px;
  background: rgba(214, 174, 88, 0.14);
  color: var(--accent-strong);
  font-family: var(--mono);
  font-weight: 800;
}

.profile-meta {
  display: grid;
  gap: 2px;
}

.profile-name {
  font-size: 0.98rem;
  font-weight: 700;
  line-height: 1;
}

.profile-sub,
.balance-label {
  color: var(--text-dim);
  font-family: var(--mono);
  font-size: 0.66rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.balance-chip {
  min-width: 118px;
  justify-content: space-between;
}

.balance-value {
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--accent-strong);
}

.main-stage {
  width: min(var(--main-max), calc(100vw - 32px));
  margin: 0 auto;
  padding-top: calc(var(--topbar-h) + 20px);
  padding-bottom: calc(var(--bottombar-h) + 26px);
  display: grid;
  gap: 16px;
}

.composer-card,
.status-strip,
.content-card,
.final-panel,
.empty-state {
  border-radius: var(--radius-xl);
}

.composer-card {
  padding: 22px;
  background:
    radial-gradient(circle at 14% 0%, rgba(214, 174, 88, 0.12), transparent 30%),
    var(--panel-soft);
}

.composer-head {
  display: flex;
  align-items: start;
  justify-content: space-between;
  gap: 16px;
}

.section-kicker {
  color: var(--text-dim);
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.composer-head h2,
.final-panel h3 {
  margin: 6px 0 0;
  font-size: clamp(1.4rem, 2.4vw, 2.1rem);
  line-height: 1.02;
  letter-spacing: -0.03em;
}

.composer-note {
  align-self: center;
  max-width: 26ch;
  text-align: right;
  color: var(--accent-strong);
  font-size: 1rem;
  line-height: 1.35;
}

.composer-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 12px;
  margin-top: 18px;
}

.seed-input {
  min-height: 56px;
  font-size: 1rem;
}

.start-btn {
  min-width: 150px;
  min-height: 56px;
  align-self: end;
}

.session-hint {
  margin-top: 14px;
  padding: 14px 16px;
  border-radius: var(--radius-md);
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(255, 255, 255, 0.03);
  color: var(--text-soft);
  line-height: 1.55;
}

.status-strip {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 14px 18px;
  background: var(--panel-soft);
}

.session-status,
.progress-status,
.control-status {
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-dim);
}

.session-status {
  color: var(--text-soft);
}

.progress-status {
  color: var(--accent-strong);
}

.card-stage {
  display: grid;
  gap: 16px;
}

.empty-state,
.content-card,
.final-panel {
  padding: 24px;
  background: var(--panel-strong);
}

.empty-state {
  display: grid;
  gap: 10px;
  min-height: 380px;
  place-content: center;
  text-align: center;
  color: var(--text-soft);
}

.empty-state-title {
  font-size: clamp(1.45rem, 2vw, 2rem);
  color: var(--text);
}

.empty-state-copy {
  max-width: 44ch;
  margin: 0 auto;
  line-height: 1.7;
}

.content-card {
  display: grid;
  gap: 18px;
  min-height: 380px;
}

.card-top {
  display: grid;
  gap: 10px;
}

.card-kicker {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.card-type,
.card-index,
.card-meta,
.keyword-chip,
.summary-pill {
  display: inline-flex;
  align-items: center;
  padding: 6px 10px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(255, 255, 255, 0.03);
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.card-type {
  color: var(--accent-strong);
}

.card-index {
  color: var(--text-dim);
}

.card-title {
  font-size: clamp(1.35rem, 2.5vw, 2rem);
  line-height: 1.06;
  letter-spacing: -0.03em;
}

.card-meta {
  width: fit-content;
  color: var(--text-dim);
}

.card-body {
  font-size: clamp(1.02rem, 1.35vw, 1.15rem);
  line-height: 1.8;
  color: var(--text-soft);
  max-width: 78ch;
}

.card-body p {
  margin: 0 0 1em;
}

.card-body p:last-child {
  margin-bottom: 0;
}

.card-keywords {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.keyword-chip {
  color: var(--text-soft);
  border-color: rgba(214, 174, 88, 0.14);
  background: rgba(214, 174, 88, 0.06);
}

.final-panel {
  display: grid;
  gap: 16px;
}

.final-text {
  font-size: clamp(1.04rem, 1.35vw, 1.14rem);
  line-height: 1.82;
  color: var(--text-soft);
  max-width: 80ch;
}

.final-summary-wrap {
  display: grid;
  gap: 10px;
}

.summary-title {
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-dim);
}

.final-summary {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.summary-pill {
  color: var(--accent-strong);
  border-color: rgba(214, 174, 88, 0.18);
  background: rgba(214, 174, 88, 0.07);
}

.control-status {
  min-height: 18px;
  color: var(--text-soft);
}

.control-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
}

.control-btn {
  min-height: 48px;
  border-radius: 16px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(255, 255, 255, 0.03);
  color: var(--text);
  font-family: var(--mono);
  font-size: 0.74rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  transition: 170ms ease;
}

.control-btn:hover {
  transform: translateY(-1px);
  border-color: rgba(255, 255, 255, 0.14);
  background: rgba(255, 255, 255, 0.05);
}

.control-btn:active {
  transform: translateY(0);
}

.control-like {
  border-color: rgba(120, 196, 161, 0.24);
  background: rgba(120, 196, 161, 0.08);
}

.control-dislike {
  border-color: rgba(255, 125, 125, 0.24);
  background: rgba(255, 125, 125, 0.08);
}

.control-next {
  border-color: rgba(255, 201, 106, 0.24);
  background: rgba(255, 201, 106, 0.08);
}

.control-final {
  border-color: rgba(214, 174, 88, 0.30);
  background: linear-gradient(180deg, rgba(214, 174, 88, 0.18), rgba(214, 174, 88, 0.08));
}

.control-btn.is-active {
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.08);
}

.control-btn:disabled,
.primary-btn:disabled,
.auth-tab:disabled {
  opacity: 0.55;
  cursor: not-allowed;
  transform: none;
}

.flash-ok {
  color: var(--ok) !important;
}

.flash-bad {
  color: var(--bad) !important;
}

.flash-warn {
  color: var(--warn) !important;
}

@keyframes pulse {
  0%,
  100% {
    transform: scale(0.95);
    opacity: 0.78;
  }
  50% {
    transform: scale(1.1);
    opacity: 1;
  }
}

@media (max-width: 980px) {
  .auth-shell {
    grid-template-columns: 1fr;
  }

  .composer-head {
    flex-direction: column;
  }

  .composer-note {
    text-align: left;
    max-width: none;
  }
}

@media (max-width: 740px) {
  :root {
    --topbar-h: 88px;
    --bottombar-h: 156px;
  }

  .topbar,
  .bottombar {
    padding-left: 14px;
    padding-right: 14px;
  }

  .topbar {
    flex-direction: column;
    align-items: stretch;
  }

  .topbar-status {
    justify-content: space-between;
  }

  .main-stage {
    width: min(100vw - 20px, var(--main-max));
  }

  .composer-grid {
    grid-template-columns: 1fr;
  }

  .start-btn {
    width: 100%;
  }

  .control-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .content-card,
  .final-panel,
  .composer-card,
  .status-strip,
  .empty-state {
    border-radius: 22px;
  }
}

@media (max-width: 540px) {
  .auth-screen {
    padding: 18px 14px;
  }

  .auth-hero,
  .auth-card,
  .composer-card,
  .content-card,
  .final-panel {
    padding: 18px;
  }

  .profile-chip,
  .balance-chip {
    padding: 8px 12px;
  }

  .brand-wrap {
    gap: 10px;
  }

  .card-body,
  .final-text {
    font-size: 1rem;
    line-height: 1.74;
  }
}