/* tools.css — shared styles for the /tools section.
   Warm cream theme matching the homepage (off-white #f1ece2, ink #16130f,
   burnt-orange accent #bd6a4a, IBM Plex). Standalone — does not depend on styles.css. */

:root {
  --bg: #f1ece2;
  --ink: #16130f;
  --accent: #bd6a4a;
  --muted: #6f675d;
  --line: #16130f;
  --card: #f7f2e8;
  --max: 1240px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--ink);
  font-family: 'IBM Plex Sans', system-ui, sans-serif;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
::selection { background: var(--ink); color: var(--bg); }

@keyframes blink { 0%,100% { opacity: 1; } 50% { opacity: .2; } }
@keyframes nudge { 0%,100% { transform: translateX(0); } 50% { transform: translateX(5px); } }

/* ---------- NAV (matches homepage) ---------- */
.site-nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--bg);
  border-bottom: 1px solid var(--line);
}
.site-nav nav {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 32px;
  display: flex;
  align-items: stretch;
  justify-content: space-between;
}
.site-nav .brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--ink);
  padding: 18px 0;
  font-family: 'IBM Plex Mono', monospace;
  font-weight: 600;
  font-size: 14px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}
.site-nav .brand .dot {
  width: 8px; height: 8px;
  background: var(--accent);
  display: inline-block;
  animation: blink 2.4s ease-in-out infinite;
}
.site-nav .nav-links {
  display: flex;
  align-items: center;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}
.site-nav .nav-links a {
  text-decoration: none;
  color: var(--ink);
  padding: 18px 16px;
  border-left: 1px solid var(--line);
  display: flex;
  align-items: center;
  height: 100%;
  transition: background .2s, color .2s;
}
.site-nav .nav-links a:hover { background: var(--ink); color: var(--bg); }
.site-nav .nav-links a.active { background: var(--ink); color: var(--bg); }
.site-nav .nav-links a.cta {
  color: var(--bg);
  background: var(--ink);
  padding: 18px 20px;
}
.site-nav .nav-links a.cta:hover { background: var(--accent); color: var(--bg); }
@media (max-width: 720px) {
  .site-nav nav { padding: 0 18px; }
  .site-nav .nav-links a { padding: 18px 12px; }
}
@media (max-width: 560px) {
  .site-nav .nav-links a:not(.cta):not(.always) { display: none; }
}

/* ---------- HERO ---------- */
.tool-hero {
  max-width: var(--max);
  margin: 0 auto;
  padding: 64px 32px 28px;
  border-bottom: 1px solid var(--line);
}
.tool-hero .back-link {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  text-decoration: none;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 13px;
  color: var(--muted);
  margin-bottom: 28px;
  letter-spacing: 0.04em;
}
.tool-hero .back-link:hover { color: var(--accent); }
.tool-hero .eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 11.5px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink);
  margin-bottom: 20px;
}
.tool-hero .eyebrow .dot {
  width: 7px; height: 7px;
  background: var(--accent);
  display: inline-block;
  animation: blink 2.4s ease-in-out infinite;
}
.tool-hero h1 {
  font-family: 'IBM Plex Sans', sans-serif;
  font-weight: 700;
  font-size: clamp(40px, 8vw, 92px);
  line-height: 0.92;
  letter-spacing: 0.01em;
  text-transform: uppercase;
  margin: 0 0 22px;
  color: var(--ink);
}
.tool-hero h1 .accent { color: var(--accent); }
.tool-hero p {
  font-family: 'IBM Plex Sans', sans-serif;
  font-size: clamp(16px, 1.9vw, 20px);
  line-height: 1.55;
  color: var(--muted);
  max-width: 56ch;
  margin: 0;
}

/* ---------- LAYOUT ---------- */
.tool-wrap {
  max-width: var(--max);
  margin: 0 auto;
  padding: 56px 32px 80px;
}
.tool-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 28px;
  align-items: start;
}
@media (max-width: 900px) { .tool-layout { grid-template-columns: 1fr; } }

/* ---------- SECTION / CATEGORY HEADERS ---------- */
.cat-head {
  display: flex;
  align-items: baseline;
  gap: 16px;
  padding-bottom: 22px;
  margin-bottom: 8px;
  border-bottom: 1px solid var(--line);
}
.cat-head .num {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 13px;
  letter-spacing: 0.14em;
  color: var(--ink);
}
.cat-head h2 {
  font-family: 'IBM Plex Sans', sans-serif;
  font-weight: 700;
  font-size: clamp(22px, 3vw, 34px);
  letter-spacing: -0.01em;
  text-transform: uppercase;
  margin: 0;
}
.cat-head .sub {
  margin-left: auto;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 11.5px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
}
.category { margin-bottom: 56px; }

/* ---------- GRID + CARDS ---------- */
.grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  border-bottom: 1px solid var(--line);
}
.grid .card { border-bottom: 0; }
.card {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 28px 24px;
  background: transparent;
  border: 1px solid var(--line);
  border-bottom: 0;
  text-decoration: none;
  color: var(--ink);
  transition: background .22s, color .22s;
  position: relative;
  min-height: 200px;
}
.card + .card { border-left: 0; }
.card:hover { background: var(--ink); color: var(--bg); }
.card:hover .card-sub { color: rgba(241,236,226,0.7); }
.card:hover .tag-live { border-color: var(--accent); }
.card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.card-emoji { font-size: 1.7rem; line-height: 1; }
.card h3 {
  font-family: 'IBM Plex Sans', sans-serif;
  font-weight: 600;
  font-size: 20px;
  letter-spacing: -0.01em;
  text-transform: uppercase;
  margin: 4px 0 0;
}
.card-sub {
  font-family: 'IBM Plex Sans', sans-serif;
  font-size: 14.5px;
  line-height: 1.55;
  color: var(--muted);
  margin: 0;
}
.card .tags {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  margin-top: auto;
  padding-top: 8px;
}
.card .tags span {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 10.5px;
  letter-spacing: 0.06em;
  color: var(--accent);
  border: 1px solid currentColor;
  padding: 4px 9px;
  border-radius: 999px;
  opacity: 0.85;
}
.card .arrow {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 18px;
  color: var(--accent);
}

/* "soon" placeholder card */
.card.soon { opacity: 0.55; cursor: default; pointer-events: none; }
.card.soon:hover { background: transparent; color: var(--ink); }
.card.soon:hover .card-sub { color: var(--muted); }

.tag-live, .tag-soon {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 10.5px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 4px 9px;
  border-radius: 999px;
  border: 1px solid var(--line);
}
.tag-live { color: var(--accent); border-color: var(--accent); }
.tag-live .pulse {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--accent);
  display: inline-block;
}
.tag-soon { color: var(--muted); }

@media (max-width: 820px) { .grid { grid-template-columns: repeat(2, 1fr); } .card + .card { border-left: 1px solid var(--line); } .card:nth-child(2n+1) { border-left: 0; } }
@media (max-width: 560px) { .grid { grid-template-columns: 1fr; } .card { border-left: 0 !important; border-bottom: 1px solid var(--line); } }

/* ---------- CALCULATOR PANELS ---------- */
.panel {
  background: var(--card);
  border: 1px solid var(--line);
  padding: 28px;
}
.panel + .panel { margin-top: 18px; }
.panel-title {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 11.5px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink);
  margin-bottom: 22px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line);
}
.panel-title .dot {
  width: 7px; height: 7px;
  background: var(--accent);
  display: inline-block;
}

/* fields */
.field { margin-bottom: 18px; }
.field:last-child { margin-bottom: 0; }
.field-label {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px;
  color: var(--ink);
  font-size: 0.92rem;
  font-weight: 500;
  margin-bottom: 7px;
}
.field-label .hint {
  font-weight: 400;
  color: var(--muted);
  font-size: 0.78rem;
  font-family: 'IBM Plex Mono', monospace;
}
.field-input {
  display: flex;
  align-items: center;
  border: 1px solid var(--ink);
  background: var(--bg);
  padding: 0 14px;
  transition: border-color .18s, box-shadow .18s;
}
.field-input:focus-within {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(189,106,74,0.18);
}
.field-input .prefix,
.field-input .suffix {
  color: var(--muted);
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.9rem;
  user-select: none;
}
.field-input input {
  flex: 1;
  min-width: 0;
  background: transparent;
  border: 0;
  outline: 0;
  color: var(--ink);
  font-size: 1.02rem;
  font-weight: 600;
  padding: 12px 8px;
  font-family: inherit;
}
.field-input input::-webkit-outer-spin-button,
.field-input input::-webkit-inner-spin-button { -webkit-appearance: none; margin: 0; }
.field-input input[type=number] { -moz-appearance: textfield; }
.field-error {
  color: #b34a2f;
  font-size: 0.8rem;
  margin-top: 6px;
  min-height: 1em;
  font-family: 'IBM Plex Mono', monospace;
}

/* results */
.result-headline { margin-bottom: 22px; padding-bottom: 22px; border-bottom: 1px solid var(--line); }
.result-headline .label {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 11.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 10px;
}
.result-big {
  font-family: 'IBM Plex Sans', sans-serif;
  font-size: clamp(2.2rem, 5vw, 3.2rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1;
  color: var(--ink);
}
.result-big .per {
  font-size: 0.9rem;
  color: var(--muted);
  font-weight: 500;
  letter-spacing: 0;
  margin-left: 6px;
}
.result-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 13px 0;
  border-top: 1px solid rgba(22,19,15,0.12);
  font-size: 0.96rem;
}
.result-row:first-of-type { border-top: 0; }
.result-row .k { color: var(--muted); }
.result-row .v { color: var(--ink); font-weight: 600; font-family: 'IBM Plex Mono', monospace; }
.result-row .v.accent { color: var(--accent); }

/* toggle + schedule */
.toggle {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  cursor: pointer;
  color: var(--ink);
  font-weight: 600;
  font-size: 0.95rem;
  background: none;
  border: 0;
  padding: 0;
  font-family: inherit;
}
.toggle .chev { color: var(--accent); transition: transform 0.2s; display: inline-block; }
.toggle[aria-expanded="true"] .chev { transform: rotate(90deg); }
.toggle:hover { color: var(--accent); }

.schedule-wrap {
  margin-top: 16px;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}
.schedule-wrap.open { max-height: 900px; }
.schedule-scroll {
  max-height: 360px;
  overflow-y: auto;
  border: 1px solid var(--line);
}
.schedule-table { width: 100%; border-collapse: collapse; font-family: 'IBM Plex Mono', monospace; font-size: 0.82rem; }
.schedule-table th, .schedule-table td { text-align: right; padding: 9px 12px; border-bottom: 1px solid rgba(22,19,15,0.12); }
.schedule-table th { color: var(--muted); font-weight: 500; font-size: 0.72rem; letter-spacing: 0.06em; text-transform: uppercase; position: sticky; top: 0; background: var(--card); }
.schedule-table th:first-child, .schedule-table td:first-child { text-align: left; }
.schedule-table td { color: var(--ink); }
.schedule-table tr:hover td { background: rgba(189,106,74,0.08); }

.note {
  margin-top: 28px;
  color: var(--muted);
  font-size: 0.86rem;
  max-width: 70ch;
}

/* ---------- FOOTER (matches homepage) ---------- */
.site-footer {
  border-top: 1px solid var(--line);
}
.site-footer .inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 40px 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 11.5px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink);
}
.site-footer .built {
  display: inline-flex;
  align-items: center;
  gap: 9px;
}
.site-footer .built .dot {
  width: 7px; height: 7px;
  background: var(--accent);
  display: inline-block;
  animation: blink 2.4s ease-in-out infinite;
}

/* ---------- selects ---------- */
.field-input select {
  flex: 1;
  min-width: 0;
  background: transparent;
  border: 0;
  outline: 0;
  color: var(--ink);
  font-size: 1.0rem;
  font-weight: 600;
  padding: 12px 8px;
  font-family: inherit;
  cursor: pointer;
  -webkit-appearance: none;
  appearance: none;
}
.field-input.has-select { padding-right: 10px; }
.field-input .caret { color: var(--muted); font-family: 'IBM Plex Mono', monospace; font-size: 0.8rem; }

/* ---------- frequency comparison table ---------- */
.compare-table { width: 100%; border-collapse: collapse; font-family: 'IBM Plex Mono', monospace; font-size: 0.84rem; }
.compare-table th, .compare-table td { text-align: right; padding: 11px 10px; border-bottom: 1px solid rgba(22,19,15,0.12); }
.compare-table th { color: var(--muted); font-weight: 500; font-size: 0.72rem; letter-spacing: 0.06em; text-transform: uppercase; }
.compare-table th:first-child, .compare-table td:first-child { text-align: left; }
.compare-table td { color: var(--ink); }
.compare-table tr.sel td { background: rgba(189,106,74,0.10); font-weight: 600; }
.compare-table tr.sel td:first-child { color: var(--accent); }
.compare-table .pos { color: #2f7a4a; }

/* ---------- cash vs finance grid ---------- */
.compare-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
@media (max-width: 640px) { .compare-grid { grid-template-columns: 1fr; } }
.compare-card { border: 1px solid var(--line); padding: 20px; background: var(--bg); }
.compare-card h4 { font-family: 'IBM Plex Mono', monospace; font-size: 0.78rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--muted); margin-bottom: 14px; }
.compare-card .big { font-family: 'IBM Plex Sans', sans-serif; font-size: 1.7rem; font-weight: 700; letter-spacing: -0.02em; color: var(--ink); }
.compare-card .big.accent { color: var(--accent); }
.compare-card .sub { font-size: 0.86rem; color: var(--muted); margin-top: 6px; }
.compare-card .rows { margin-top: 14px; }
.compare-card .row { display: flex; justify-content: space-between; padding: 8px 0; border-top: 1px solid rgba(22,19,15,0.1); font-size: 0.9rem; }
.compare-card .row .k { color: var(--muted); }
.compare-card .row .v { font-family: 'IBM Plex Mono', monospace; font-weight: 600; }

/* ---------- depreciation bar chart ---------- */
.bars { display: flex; flex-direction: column; gap: 8px; }
.bar-row { display: grid; grid-template-columns: 52px 1fr auto; align-items: center; gap: 12px; }
.bar-yr { font-family: 'IBM Plex Mono', monospace; font-size: 0.78rem; color: var(--muted); }
.bar-track { background: rgba(22,19,15,0.08); height: 16px; position: relative; }
.bar-fill { height: 100%; background: var(--accent); transition: width 0.4s ease; }
.bar-val { font-family: 'IBM Plex Mono', monospace; font-size: 0.82rem; font-weight: 600; min-width: 84px; text-align: right; }

/* ---------- reference list ---------- */
.ref-list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 14px; }
.ref-list li { font-size: 0.94rem; line-height: 1.6; color: var(--muted); padding-left: 18px; position: relative; }
.ref-list li::before { content: "→"; position: absolute; left: 0; color: var(--accent); font-weight: 700; }
.ref-list strong { color: var(--ink); }
.ref-list a { color: var(--accent); text-decoration: none; border-bottom: 1px solid rgba(189,106,74,0.4); }
.ref-list a:hover { border-color: var(--accent); }

/* ---------- tips list ---------- */
.tips { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 16px; }
.tips li { display: grid; grid-template-columns: 28px 1fr; gap: 12px; font-size: 0.94rem; line-height: 1.6; color: var(--muted); }
.tips li .n { font-family: 'IBM Plex Mono', monospace; font-size: 0.78rem; color: var(--accent); border: 1px solid var(--accent); width: 26px; height: 26px; display: flex; align-items: center; justify-content: center; border-radius: 50%; }
.tips li strong { color: var(--ink); }
.tips a { color: var(--accent); text-decoration: none; border-bottom: 1px solid rgba(189,106,74,0.4); }
.tips a:hover { border-color: var(--accent); }

/* ---------- generic two-up info grid ---------- */
.info-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
@media (max-width: 760px) { .info-grid { grid-template-columns: 1fr; } }