:root {
  --bg: #0a0a0f;
  --bg-elevated: #131218;
  --bg-card-accent: #1b1a2c;
  --border: rgba(255, 255, 255, 0.08);
  --text-primary: #f5f5f7;
  --text-secondary: #9b99a3;
  --accent-violet: #a855f7;
  --accent-indigo: #4f46e5;
  --accent-gradient: linear-gradient(135deg, var(--accent-violet), var(--accent-indigo));
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  background: var(--bg);
  color: var(--text-primary);
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

.page {
  max-width: 1100px;
  margin: 0 auto;
  padding: 48px 24px 96px;
}

/* Header */
.site-header {
  text-align: center;
  margin-bottom: 32px;
}

.site-title {
  font-size: clamp(28px, 5vw, 40px);
  font-weight: 800;
  margin: 0 0 10px;
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  letter-spacing: -0.02em;
}

.site-subtitle {
  color: var(--text-secondary);
  font-size: 15px;
  margin: 0;
}

/* Toolbar / search */
.toolbar {
  margin-bottom: 20px;
}

.search-wrap {
  position: relative;
  max-width: 420px;
  margin: 0 auto;
}

.search-icon {
  position: absolute;
  left: 16px;
  top: 50%;
  transform: translateY(-50%);
  width: 18px;
  height: 18px;
  color: var(--text-secondary);
  pointer-events: none;
}

.search-input {
  width: 100%;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 12px 16px 12px 44px;
  color: var(--text-primary);
  font-size: 14px;
  font-family: inherit;
  outline: none;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.search-input::placeholder {
  color: var(--text-secondary);
}

.search-input:focus {
  border-color: var(--accent-violet);
  box-shadow: 0 0 0 3px rgba(168, 85, 247, 0.15);
}

/* Tabs */
.tabs {
  display: flex;
  flex-wrap: nowrap;
  gap: 6px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 6px;
  overflow-x: auto;
  scrollbar-width: none;
  margin: 0 auto 8px;
  max-width: fit-content;
}

.tabs::-webkit-scrollbar {
  display: none;
}

.tab-btn {
  flex-shrink: 0;
  appearance: none;
  border: none;
  background: transparent;
  color: var(--text-secondary);
  font-family: inherit;
  font-size: 13.5px;
  font-weight: 600;
  padding: 10px 18px;
  border-radius: 999px;
  cursor: pointer;
  white-space: nowrap;
  transition: color 0.15s ease, background 0.15s ease;
}

.tab-btn:hover {
  color: var(--text-primary);
}

.tab-btn.active {
  background: var(--accent-gradient);
  color: #ffffff;
}

.tabs-select {
  display: none;
  width: 100%;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 12px 14px;
  color: var(--text-primary);
  font-family: inherit;
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 16px;
  outline: none;
}

.tabs-select:focus {
  border-color: var(--accent-violet);
}

/* Warning */
.prompt-warning {
  text-align: center;
  color: var(--text-secondary);
  font-size: 13px;
  max-width: 640px;
  margin: 16px auto 32px;
  line-height: 1.6;
}

.prompt-warning strong {
  color: var(--text-primary);
}

.prompt-warning code {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 2px 6px;
  font-size: 12px;
  color: var(--accent-violet);
}

/* Cards */
.cards-container {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.format-card {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 22px 24px;
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.25);
}

.format-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 10px;
  flex-wrap: wrap;
}

.format-name {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-primary);
  margin: 0;
}

.format-badges {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

.format-badge {
  font-size: 11px;
  font-weight: 600;
  color: var(--accent-violet);
  background: rgba(168, 85, 247, 0.12);
  border: 1px solid rgba(168, 85, 247, 0.25);
  border-radius: 999px;
  padding: 3px 10px;
  white-space: nowrap;
}

.format-explicacao {
  color: var(--text-secondary);
  font-size: 14px;
  line-height: 1.65;
  margin: 0 0 16px;
}

.format-row {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 14px;
}

.format-row:last-child {
  margin-bottom: 0;
}

.format-label {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-secondary);
}

.exemplos-list {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.exemplo-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--text-primary);
  background: var(--bg-card-accent);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 7px 14px;
  font-size: 13px;
  font-weight: 600;
  text-decoration: none;
  transition: border-color 0.15s ease, transform 0.1s ease;
}

.exemplo-link:hover {
  border-color: var(--accent-violet);
  transform: translateY(-1px);
}

.exemplo-link svg {
  width: 13px;
  height: 13px;
  flex-shrink: 0;
}

.prompt-box {
  background: var(--bg-card-accent);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 14px 16px;
}

.prompt-text {
  color: var(--text-secondary);
  font-size: 13px;
  line-height: 1.6;
  margin: 0 0 12px;
  white-space: pre-wrap;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.prompt-text.expanded {
  -webkit-line-clamp: unset;
  overflow: visible;
}

.prompt-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.btn-toggle-prompt {
  appearance: none;
  border: none;
  background: transparent;
  color: var(--accent-violet);
  font-family: inherit;
  font-size: 12.5px;
  font-weight: 600;
  cursor: pointer;
  padding: 4px 0;
}

.btn-toggle-prompt:hover {
  text-decoration: underline;
}

.btn-copy {
  appearance: none;
  border: none;
  background: var(--accent-gradient);
  color: #fff;
  font-family: inherit;
  font-size: 12.5px;
  font-weight: 700;
  padding: 8px 16px;
  border-radius: 999px;
  cursor: pointer;
  margin-left: auto;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: opacity 0.15s ease, transform 0.1s ease;
}

.btn-copy:hover {
  opacity: 0.9;
}

.btn-copy:active {
  transform: scale(0.97);
}

.btn-copy svg {
  width: 13px;
  height: 13px;
}

.btn-copy.copied {
  background: #16a34a;
}

/* Empty state */
.empty-state {
  text-align: center;
  color: var(--text-secondary);
  font-size: 14px;
  padding: 60px 20px;
}

/* Section title inside a tab */
.results-count {
  color: var(--text-secondary);
  font-size: 12.5px;
  margin: 0 0 16px;
  text-align: center;
}

/* Responsive */
@media (max-width: 640px) {
  .page {
    padding: 32px 16px 72px;
  }

  .tabs {
    display: none;
  }

  .tabs-select {
    display: block;
  }

  .format-card {
    padding: 18px;
  }

  .format-card-header {
    flex-direction: column;
    align-items: flex-start;
  }

  .btn-copy {
    margin-left: 0;
    width: 100%;
    justify-content: center;
  }

  .exemplos-list {
    width: 100%;
  }

  .exemplo-link {
    flex: 1 1 auto;
    justify-content: center;
  }
}