/* tools.links-create.co.jp 共通スタイル */
:root {
  --bg: #1a1a2e; --surface: #16213e; --border: #0f3460; --hover: #1a4a8a;
  --accent: #e94560; --cyan: #4cc9f0; --text: #e0e0e0; --text-dim: #a0a0b0; --white: #fff;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
body { font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Hiragino Sans", sans-serif; background: var(--bg); color: var(--text); line-height: 1.6; min-height: 100vh; display: flex; flex-direction: column; }
.container { max-width: 860px; margin: 0 auto; padding: 0 20px; }
.tool-main { flex: 1; padding: 72px 0 40px; }
.tool-main h1 { font-size: 1.5rem; color: var(--white); margin-bottom: 6px; }
.tool-sub { color: var(--text-dim); font-size: 0.88rem; margin-bottom: 24px; }
.tool-title { font-size: 1.8rem; font-weight: 700; color: var(--white); margin-bottom: 6px; }
.tool-description { color: var(--text-dim); font-size: 0.95rem; margin-bottom: 24px; }

/* Textarea */
.tool-textarea {
  width: 100%; min-height: 180px; background: var(--surface); color: var(--text);
  border: 1px solid var(--border); border-radius: 10px; padding: 14px 16px;
  font-family: "SF Mono", "Fira Code", "Consolas", monospace; font-size: 0.88rem;
  resize: vertical; line-height: 1.6;
}
.tool-textarea:focus { outline: none; border-color: var(--cyan); }
.tool-textarea::placeholder { color: var(--text-dim); }

/* Input */
.tool-input {
  width: 100%; background: var(--surface); color: var(--text);
  border: 1px solid var(--border); border-radius: 10px; padding: 12px 16px;
  font-size: 0.9rem;
}
.tool-input:focus { outline: none; border-color: var(--cyan); }
.tool-input::placeholder { color: var(--text-dim); }

/* Select */
.tool-select {
  background: var(--surface); color: var(--text); border: 1px solid var(--border);
  border-radius: 8px; padding: 8px 12px; font-size: 0.85rem; cursor: pointer;
}
.tool-select:focus { outline: none; border-color: var(--cyan); }

/* Number */
.tool-number {
  background: var(--surface); color: var(--text); border: 1px solid var(--border);
  border-radius: 8px; padding: 8px 12px; font-size: 0.85rem; width: 90px; text-align: center;
}
.tool-number:focus { outline: none; border-color: var(--cyan); }

/* Buttons */
.btn { display: inline-flex; align-items: center; gap: 6px; padding: 8px 18px; border-radius: 8px; font-size: 0.85rem; font-weight: 600; cursor: pointer; border: none; transition: opacity 0.2s; }
.btn-primary { background: var(--accent); color: var(--white); }
.btn-cyan { background: var(--cyan); color: var(--bg); }
.btn-outline { background: transparent; color: var(--text-dim); border: 1px solid var(--border); }
.btn:hover { opacity: 0.85; }
.btn-outline:hover { border-color: var(--cyan); color: var(--white); }
.btn.copied { background: rgba(76,201,240,0.15); color: var(--cyan); border-color: var(--cyan); }

/* Row / Flex */
.tool-row { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; margin-bottom: 14px; }
.tool-row label { font-size: 0.85rem; color: var(--text-dim); white-space: nowrap; }
.tool-actions { display: flex; gap: 8px; margin: 14px 0; flex-wrap: wrap; }

/* Output */
.tool-output {
  background: var(--surface); border: 1px solid var(--border); border-radius: 10px;
  padding: 14px 16px; font-family: "SF Mono", "Fira Code", "Consolas", monospace;
  font-size: 0.85rem; white-space: pre-wrap; word-break: break-all;
  max-height: 400px; overflow-y: auto; line-height: 1.6; margin-top: 14px;
}

/* Stats bar */
.tool-stats {
  display: flex; gap: 20px; flex-wrap: wrap; padding: 12px 16px;
  background: var(--surface); border: 1px solid var(--border); border-radius: 10px; margin-bottom: 14px;
}
.stat-item { text-align: center; }
.stat-value { font-size: 1.3rem; font-weight: 700; color: var(--cyan); display: block; }
.stat-label { font-size: 0.72rem; color: var(--text-dim); }

/* Color swatch */
.color-swatch {
  width: 48px; height: 48px; border-radius: 10px; border: 2px solid var(--border); cursor: pointer;
}

/* Two-column layout */
.tool-split { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.tool-split-label { font-size: 0.78rem; color: var(--text-dim); margin-bottom: 6px; font-weight: 600; }

@media (max-width: 640px) {
  .tool-main { padding-top: 60px; }
  .tool-split { grid-template-columns: 1fr; }
  .tool-stats { gap: 12px; }
}