:root {
  --bg-0: #070912;
  --bg-1: #111730;
  --panel: #111a33;
  --panel-2: #1a2142;
  --surface: #0e1530;
  --text: #eef2ff;
  --muted: #94a0d6;
  --line: #32406d;
  --line-strong: #46518a;
  --accent: #5b6cff;
  --accent-2: #ff4f9a;
  --accent-3: #8b5cf6;
  --danger: #f43f5e;
  --radius: 16px;
  --shadow-soft: 0 18px 40px rgba(5, 9, 23, 0.55);
  --shadow-card: 0 7px 24px rgba(8, 13, 32, 0.5);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
}

body {
  font-family: "Avenir Next", "Manrope", "Poppins", "Segoe UI", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 24% 0%, rgba(139, 92, 246, 0.3), transparent 40%),
    radial-gradient(circle at 90% 10%, rgba(255, 79, 154, 0.22), transparent 35%),
    radial-gradient(circle at 50% 90%, rgba(88, 110, 255, 0.22), transparent 50%),
    linear-gradient(135deg, var(--bg-0), var(--bg-1));
  padding: 1rem;
}

h1,
h2,
h3 {
  margin: 0;
}

button,
input,
textarea,
select {
  font: inherit;
}

#appShell {
  width: min(1200px, 100%);
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(300px, 340px) minmax(0, 1fr) minmax(0, 1fr);
  gap: 1rem;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
  padding: 1rem;
}

.sidebar,
.editor-panel,
.compose-panel {
  padding: 0;
}

.screen-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
}

.screen-head h1,
.screen-head h2 {
  font-size: 1.15rem;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.filters {
  margin-top: 1rem;
  display: grid;
  gap: 0.6rem;
}

.filters input,
.filters select,
input,
textarea,
select {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 0.62rem 0.75rem;
  background: var(--surface);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.02);
  color: var(--text);
}

button {
  border: none;
  border-radius: 12px;
  background: linear-gradient(120deg, var(--accent), var(--accent-3));
  color: #eefbf9;
  padding: 0.63rem 0.95rem;
  font-weight: 650;
  cursor: pointer;
  transition: transform 120ms ease, filter 120ms ease, box-shadow 120ms ease;
  box-shadow: 0 10px 22px rgba(91, 108, 255, 0.2);
}

button:hover {
  box-shadow: 0 8px 18px rgba(139, 92, 246, 0.28);
}

button:hover,
button:focus-visible {
  filter: brightness(1.08);
}

button:active {
  transform: translateY(1px);
}

button.muted {
  background: linear-gradient(120deg, #22305f, #2b2a56);
  color: var(--text);
  border: 1px solid var(--line);
  box-shadow: none;
}

button.ghost {
  background: transparent;
  color: #d6defa;
  border: 1px solid var(--line-strong);
}

button.danger {
  background: linear-gradient(120deg, #ef4444, #db2777);
}

.prompt-list {
  margin-top: 0.95rem;
  display: grid;
  gap: 0.6rem;
  max-height: calc(100vh - 240px);
  overflow: auto;
  padding-right: 0.2rem;
}

.prompt-item {
  text-align: left;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--panel);
  color: var(--text);
  padding: 0.75rem;
  display: grid;
  gap: 0.45rem;
}

.prompt-item.selected {
  border-color: var(--accent);
  box-shadow: inset 0 0 0 1px var(--accent);
}

.prompt-item h3 {
  margin: 0;
  font-size: 1rem;
}

.prompt-meta {
  color: var(--muted);
  font-size: 0.82rem;
}

.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
}

.chips span {
  font-size: 0.74rem;
  border-radius: 999px;
  background: linear-gradient(120deg, rgba(139, 92, 246, 0.22), rgba(255, 79, 154, 0.16));
  color: #d9ddff;
  padding: 0.12rem 0.5rem;
}

.prompt-item-actions {
  display: flex;
  gap: 0.4rem;
}

.prompt-item-actions button {
  font-size: 0.82rem;
  padding: 0.4rem 0.65rem;
}

.editor-panel,
.compose-panel {
  display: grid;
  gap: 0.9rem;
}

.editor-panel {
  padding-top: 0;
}

form {
  display: grid;
  gap: 0.8rem;
}

label {
  display: grid;
  gap: 0.35rem;
  font-size: 0.92rem;
}

.variants-header,
.compose-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.variants-container {
  display: grid;
  gap: 0.7rem;
}

.variant-item {
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 0.7rem;
  background: var(--panel-2);
  display: grid;
  gap: 0.6rem;
}

.variant-item-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.variant-item h3 {
  margin: 0;
  font-size: 0.95rem;
}

.form-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.placeholder-inputs {
  margin-top: 0.4rem;
  display: grid;
  gap: 0.6rem;
}

.status-text {
  min-height: 1.1rem;
  margin: 0;
  color: var(--muted);
}

.empty {
  border: 1px dashed var(--line);
  border-radius: 12px;
  padding: 1rem;
  text-align: center;
  color: var(--muted);
}

.hidden {
  display: none !important;
}

.auth-panel {
  max-width: 430px;
  margin: 10vh auto;
  display: grid;
  gap: 0.75rem;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-soft);
  padding: 1rem;
}

#renderedOutput {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  line-height: 1.4;
}

.mobile-only-head {
  display: none;
}

.mobile-nav {
  display: none;
}

@keyframes screenIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 860px) {
  body {
    padding: 0;
    padding-bottom: 76px;
  }

  #appShell {
    display: block;
    width: 100%;
    gap: 0;
    padding: 0;
  }

  .screen {
    display: none;
    border-radius: 0;
    border-left: none;
    border-right: none;
    border-top: 1px solid var(--line-strong);
    border-bottom: 1px solid var(--line-strong);
    box-shadow: none;
    min-height: calc(100vh - 76px);
    padding: 1rem;
  }

  .screen.active {
    display: block;
    animation: screenIn 180ms ease;
  }

  .mobile-only-head {
    display: flex;
  }

  .panel {
    box-shadow: none;
    border-radius: 0;
  }

  .screen-head {
    margin-bottom: 0.9rem;
  }

  .screen-head h1 {
    font-size: 1.2rem;
  }

  .header-actions {
    flex-wrap: wrap;
    justify-content: flex-end;
  }

  .prompt-list {
    max-height: none;
    overflow: visible;
  }

  button,
  input,
  textarea,
  select {
    min-height: 44px;
  }

  button {
    white-space: nowrap;
  }

  .prompt-item-actions button {
    min-height: 40px;
  }

  #mobileNav {
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0;
    border-top: 1px solid var(--line);
    background: var(--panel-2);
    z-index: 10;
  }

  #mobileNav button {
    border-radius: 0;
    min-height: 56px;
    padding: 0.45rem 0.35rem;
  }

  #mobileNav button.active {
    background: linear-gradient(120deg, var(--accent), var(--accent-2));
    color: #effdf9;
  }

  .editor-panel,
  .compose-panel {
    padding: 0;
  }

  .auth-panel {
    margin: 8vh 0.8rem;
    border-radius: 14px;
  }
}