/* ============================================================
   Buffalo Tech Systems — Free Tools page
   (loads on top of styles.css and reuses its design tokens)
   ============================================================ */

.nav-links a.active { color: var(--text); }
.nav-links a.active::after { width: 100%; }

/* ---------- Hero ---------- */
.tools-hero { padding: 9rem 0 3rem; text-align: center; }
.tools-hero h1 { font-family: var(--font-head); font-weight: 700; letter-spacing: -0.03em; font-size: clamp(2.1rem, 5.5vw, 3.6rem); line-height: 1.06; margin: 1.2rem 0 1rem; }
.tools-hero p { color: var(--text-dim); max-width: 620px; margin: 0 auto; font-size: 1.05rem; }

.tools-wrap { padding-bottom: 4rem; }

/* ---------- Grid ---------- */
.tools-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1.4rem; }
.tool-wide { grid-column: 1 / -1; }

.tool {
  position: relative; padding: 1.7rem 1.6rem; border-radius: var(--radius);
  background: var(--surface); border: 1px solid var(--line);
  backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
  transition: border-color .4s;
}
.tool:hover { border-color: var(--line-strong); }
.tool-head { display: flex; gap: 0.9rem; align-items: flex-start; margin-bottom: 1.3rem; }
.tool-icon { flex: none; display: grid; place-items: center; width: 46px; height: 46px; border-radius: 12px; background: var(--grad-soft); border: 1px solid var(--line-strong); color: var(--cyan); }
.tool-head h2 { font-family: var(--font-head); font-size: 1.2rem; font-weight: 600; letter-spacing: -0.01em; }
.tool-head p { color: var(--text-mute); font-size: 0.9rem; margin-top: 0.15rem; }

/* ---------- Forms / inputs ---------- */
.tool-form { display: flex; gap: 0.6rem; flex-wrap: wrap; margin-bottom: 1rem; }
.t-input, .t-select {
  flex: 1 1 auto; min-width: 0; padding: 0.7rem 0.85rem; border-radius: var(--radius-sm);
  background: rgba(5, 9, 18, 0.6); border: 1px solid var(--line); color: var(--text);
  font-family: var(--font-mono); font-size: 0.92rem; transition: border-color .25s, box-shadow .25s;
}
.t-select { flex: 0 0 auto; font-family: var(--font-body); cursor: pointer; }
.t-input:focus, .t-select:focus { outline: none; border-color: var(--cyan); box-shadow: 0 0 0 3px rgba(46,230,166,0.14); }
.btn-sm { padding: 0.6rem 1.1rem; font-size: 0.9rem; }

.tool-note { font-size: 0.9rem; color: var(--text-dim); }
.tool-note.warn { color: var(--amber); }
.tool-out { margin-top: 0.3rem; }
.mono { font-family: var(--font-mono); }

/* ---------- Key/value output ---------- */
.kv { display: grid; gap: 0.55rem; }
.kv > div { display: flex; justify-content: space-between; gap: 1rem; align-items: baseline; padding: 0.5rem 0.7rem; border-radius: 10px; background: rgba(5, 9, 18, 0.4); border: 1px solid var(--line); }
.kv dt { color: var(--text-mute); font-size: 0.82rem; }
.kv dd { color: var(--text); font-size: 0.9rem; text-align: right; word-break: break-word; }

/* ---------- What's my IP ---------- */
.ip-hero { padding: 1.1rem 1.2rem; border-radius: var(--radius-sm); background: linear-gradient(140deg, rgba(139,92,246,0.14), rgba(46,230,166,0.06)); border: 1px solid var(--line-strong); margin-bottom: 1rem; }
.ip-label { font-size: 0.75rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--text-mute); }
.ip-value-row { display: flex; align-items: center; gap: 0.6rem; margin-top: 0.35rem; }
.ip-value { font-family: var(--font-mono); font-size: clamp(1.15rem, 3.5vw, 1.7rem); font-weight: 500; background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; word-break: break-all; }
#ip-refresh { margin-top: 1rem; }

.icon-btn { position: relative; flex: none; display: grid; place-items: center; width: 34px; height: 34px; border-radius: 9px; border: 1px solid var(--line); background: rgba(255,255,255,0.03); color: var(--text-dim); transition: all .2s; }
.icon-btn:hover { color: var(--cyan); border-color: var(--line-strong); }
.icon-btn.copied { color: var(--lime); border-color: var(--lime); }
.icon-btn.copied::after { content: "Copied"; position: absolute; margin-top: -2.4rem; font-size: 0.7rem; font-family: var(--font-body); background: var(--surface-solid); padding: 2px 6px; border-radius: 6px; border: 1px solid var(--line); }

/* ---------- DNS table ---------- */
.dns-table { width: 100%; border-collapse: collapse; font-size: 0.88rem; }
.dns-table th { text-align: left; font-size: 0.72rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--text-mute); padding: 0.4rem 0.6rem; border-bottom: 1px solid var(--line); }
.dns-table td { padding: 0.5rem 0.6rem; border-bottom: 1px solid var(--line); vertical-align: top; }
.dns-table td.answer { color: var(--cyan); word-break: break-all; }
.dns-table td.ttl { color: var(--text-mute); text-align: right; white-space: nowrap; }

/* ---------- Website check ---------- */
.site-summary { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0.8rem; margin-bottom: 1.1rem; }
.site-summary-3 { grid-template-columns: repeat(3, 1fr); }
.metric-caption { margin: -0.4rem 0 1.1rem; font-size: 0.8rem; }
.metric { text-align: center; padding: 1rem 0.6rem; border-radius: var(--radius-sm); background: rgba(5, 9, 18, 0.45); border: 1px solid var(--line); }
.metric-num { display: block; font-family: var(--font-head); font-weight: 700; font-size: 1.5rem; line-height: 1; }
.metric-num.pass { color: var(--lime); } .metric-num.warn { color: var(--amber); } .metric-num.fail { color: #ff6b6b; }
.metric-label { display: block; margin-top: 0.4rem; font-size: 0.74rem; color: var(--text-mute); }

.pill { display: inline-block; font-size: 0.7rem; padding: 0.1rem 0.5rem; border-radius: 999px; background: rgba(255,255,255,0.06); border: 1px solid var(--line); color: var(--text-dim); }
.pill-ok { color: var(--lime); border-color: rgba(46,230,166,0.4); }
.pill-no { color: #ff6b6b; border-color: rgba(255,107,107,0.4); }

.sec-report { display: grid; grid-template-columns: auto 1fr; gap: 1.2rem; margin-top: 1.3rem; align-items: start; }
.sec-grade { flex: none; text-align: center; padding: 1.1rem 1.3rem; border-radius: var(--radius-sm); border: 1px solid var(--line-strong); background: rgba(5,9,18,0.5); }
.grade-letter { display: block; font-family: var(--font-head); font-weight: 700; font-size: 2.6rem; line-height: 1; }
.grade-sub { display: block; margin-top: 0.3rem; font-size: 0.72rem; color: var(--text-mute); white-space: nowrap; }
.grade-A .grade-letter { color: var(--lime); } .grade-B .grade-letter { color: #86e34a; }
.grade-C .grade-letter { color: var(--amber); } .grade-D .grade-letter { color: #ff9f45; } .grade-F .grade-letter { color: #ff6b6b; }

.sec-list { display: grid; gap: 0.4rem; }
.sec { display: grid; grid-template-columns: auto auto 1fr; gap: 0.6rem; align-items: baseline; padding: 0.5rem 0.7rem; border-radius: 10px; background: rgba(5,9,18,0.4); border: 1px solid var(--line); font-size: 0.86rem; }
.sec-mark { font-weight: 700; }
.sec.ok .sec-mark { color: var(--lime); } .sec.no .sec-mark { color: #ff6b6b; }
.sec-label { color: var(--text); }
.sec-val { color: var(--text-mute); font-size: 0.78rem; word-break: break-all; }
.sec-advice { color: var(--amber); font-size: 0.8rem; }
.sec-cta, .tools-disclaimer { margin-top: 1.2rem; font-size: 0.9rem; color: var(--text-dim); }
.sec-cta a, .tools-disclaimer a { color: var(--cyan); }

/* ---------- Password generator ---------- */
.pw-output { display: flex; align-items: center; gap: 0.5rem; padding: 0.9rem 1rem; border-radius: var(--radius-sm); background: rgba(5,9,18,0.6); border: 1px solid var(--line-strong); margin-bottom: 0.8rem; }
.pw-value { flex: 1; font-family: var(--font-mono); font-size: 1.05rem; color: var(--lime); word-break: break-all; }
.pw-meter { height: 6px; border-radius: 999px; background: rgba(255,255,255,0.07); overflow: hidden; }
.pw-meter span { display: block; height: 100%; width: 0; border-radius: 999px; transition: width .3s var(--ease), background .3s; }
.pw-meter .s-weak { background: #ff6b6b; } .pw-meter .s-fair { background: var(--amber); }
.pw-meter .s-strong { background: var(--lime); } .pw-meter .s-max { background: var(--grad); }
.pw-meta { display: flex; justify-content: space-between; margin: 0.5rem 0 1rem; font-size: 0.82rem; color: var(--text-mute); }
#pw-strength { color: var(--text); font-weight: 600; }

.pw-range { display: flex; align-items: center; gap: 0.7rem; font-size: 0.88rem; color: var(--text-dim); margin-bottom: 0.9rem; }
.pw-range output { font-family: var(--font-mono); color: var(--cyan); min-width: 2ch; }
.pw-range input[type="range"] { flex: 1; accent-color: #8b5cf6; }
.pw-toggles { display: flex; flex-wrap: wrap; gap: 0.5rem 1rem; }
.pw-toggles label { display: inline-flex; align-items: center; gap: 0.4rem; font-size: 0.85rem; color: var(--text-dim); cursor: pointer; }
.pw-toggles input { accent-color: #2ee6a6; }

/* ---------- CTA strip ---------- */
.tools-cta { text-align: center; }
.tools-cta .section-title { margin-bottom: 0.8rem; }
.tools-cta .section-lead { max-width: 560px; margin: 0 auto 1.8rem; }

/* ---------- Responsive ---------- */
@media (max-width: 820px) {
  .tools-grid { grid-template-columns: 1fr; }
  .site-summary { grid-template-columns: repeat(2, 1fr); }
  .sec-report { grid-template-columns: 1fr; }
  .sec-grade { justify-self: start; display: flex; align-items: center; gap: 0.8rem; }
  .grade-sub { margin-top: 0; }
}