/* ── Tool page styles ── */

/* Nav */
.tool-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem 2rem;
  background: rgba(10, 10, 15, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.nav-logo {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-primary);
  text-decoration: none;
}

.nav-badge {
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--text-muted);
  background: var(--bg-surface);
  border: 1px solid rgba(255, 255, 255, 0.07);
  border-radius: 100px;
  padding: 0.25rem 0.75rem;
}

/* Tool hero */
.tool-hero {
  padding: 8rem 2rem 3rem;
  text-align: center;
  max-width: 700px;
  margin: 0 auto;
}

.tool-hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--bg-surface);
  border: 1px solid rgba(61, 255, 192, 0.2);
  border-radius: 100px;
  padding: 0.4rem 1.2rem;
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--mint);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: 2rem;
}

.tool-hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 6vw, 4rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: 1.2rem;
}

.tool-lede {
  color: var(--text-secondary);
  font-size: 1.05rem;
  line-height: 1.7;
  max-width: 500px;
  margin: 0 auto;
}

/* Generator card */
.generator-wrap {
  max-width: 780px;
  margin: 0 auto;
  padding: 0 2rem 6rem;
}

.generator-card {
  background: var(--bg-card);
  border: 1px solid rgba(255, 255, 255, 0.07);
  border-radius: 20px;
  padding: 2.5rem;
}

.generator-form {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.input-label {
  font-family: var(--font-display);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  letter-spacing: 0.01em;
}

.input-row {
  display: flex;
  gap: 0.75rem;
}

.topic-input {
  flex: 1;
  background: var(--bg-surface);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 12px;
  padding: 0.9rem 1.2rem;
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 1rem;
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.topic-input::placeholder {
  color: var(--text-muted);
}

.topic-input:focus {
  border-color: rgba(61, 255, 192, 0.4);
  box-shadow: 0 0 0 3px rgba(61, 255, 192, 0.07);
}

.generate-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  background: var(--mint);
  color: #0a0a0f;
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 600;
  border: none;
  border-radius: 12px;
  padding: 0.9rem 1.6rem;
  cursor: pointer;
  white-space: nowrap;
  transition: background 0.2s, transform 0.15s;
  min-width: 160px;
}

.generate-btn:hover:not(:disabled) {
  background: var(--mint-dim);
}

.generate-btn:disabled {
  opacity: 0.7;
  cursor: not-allowed;
}

.btn-spinner {
  display: inline-flex;
  align-items: center;
}

.spinning svg {
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

.usage-info {
  font-size: 0.8rem;
  color: var(--text-muted);
  min-height: 1em;
}

/* Results */
.results-section {
  margin-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  padding-top: 2rem;
  animation: fadeUp 0.3s ease;
}

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(12px); }
  to   { opacity: 1; transform: translateY(0); }
}

.results-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.2rem;
}

.results-label {
  font-family: var(--font-display);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--mint);
}

.copy-all-btn {
  background: var(--bg-surface);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 8px;
  padding: 0.4rem 0.9rem;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-secondary);
  cursor: pointer;
  transition: border-color 0.2s, color 0.2s;
}

.copy-all-btn:hover, .copy-all-btn.copied {
  border-color: var(--mint);
  color: var(--mint);
}

.hooks-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.hook-item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  background: var(--bg-surface);
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: 12px;
  padding: 1rem 1.1rem;
  transition: border-color 0.2s;
}

.hook-item:hover {
  border-color: rgba(61, 255, 192, 0.15);
}

.hook-num {
  font-family: var(--font-display);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--mint);
  min-width: 1.4rem;
  padding-top: 0.15em;
  user-select: none;
}

.hook-text {
  flex: 1;
  font-size: 0.95rem;
  line-height: 1.6;
  color: var(--text-primary);
}

.hook-copy-btn {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 0.2rem;
  border-radius: 6px;
  display: flex;
  align-items: center;
  flex-shrink: 0;
  transition: color 0.2s, background 0.2s;
  margin-top: 0.1rem;
}

.hook-copy-btn:hover, .hook-copy-btn.copied {
  color: var(--mint);
  background: var(--mint-glow);
}

.results-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 1.5rem;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.remaining-text {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.regenerate-btn {
  background: none;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 8px;
  padding: 0.45rem 1rem;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-secondary);
  cursor: pointer;
  transition: border-color 0.2s, color 0.2s;
}

.regenerate-btn:hover {
  border-color: var(--mint);
  color: var(--mint);
}

/* Error */
.error-box {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  background: rgba(255, 107, 107, 0.08);
  border: 1px solid rgba(255, 107, 107, 0.25);
  border-radius: 12px;
  padding: 1rem 1.2rem;
  margin-top: 1.5rem;
  font-size: 0.9rem;
  color: var(--coral);
  animation: fadeUp 0.3s ease;
}

.error-icon {
  flex-shrink: 0;
}

/* How it works */
.how-it-works {
  margin-top: 3rem;
}

.how-title {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
  text-align: center;
}

.how-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}

.how-card {
  background: var(--bg-card);
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: 14px;
  padding: 1.5rem 1.3rem;
  text-align: center;
}

.how-icon {
  font-size: 1.6rem;
  display: block;
  margin-bottom: 0.75rem;
}

.how-card h3 {
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.how-card p {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* Responsive */
@media (max-width: 640px) {
  .input-row {
    flex-direction: column;
  }
  .generate-btn {
    width: 100%;
  }
  .how-grid {
    grid-template-columns: 1fr;
  }
  .generator-card {
    padding: 1.8rem 1.4rem;
  }
  .tool-nav {
    padding: 0.9rem 1.2rem;
  }
}