/* ============================================================
   Nirmith AI Labs — free tools pages (/tools/)
   Builds on styles.css tokens; the product accent comes from
   body[data-product] like the product pages.
   ============================================================ */

:root {
  --law-gst: #7CD6F0;
  --law-tds: #B4A8FF;
  --law-it: #FFC266;
  --law-pf: #6FE0BE;
  --soon: #FF8A7A;
}

.tool-hero { padding-bottom: 40px; }
.tool-hero h1 { max-width: 16ch; text-wrap: balance; }
.tool-hero .lead { max-width: 52ch; margin-top: 14px; }
.tool-narrow-lead { max-width: 52ch; }

.tool-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) minmax(260px, 1fr);
  gap: 40px;
  align-items: end;
}

/* Next deadline / score card */
.next-card {
  background: linear-gradient(160deg, rgba(var(--accent-2-rgb), .12), rgba(255, 255, 255, .02));
  border: 1px solid var(--border-2);
  border-radius: var(--radius);
  padding: 26px 28px;
  box-shadow: var(--shadow-glow);
}
.next-label {
  font-family: var(--font-head);
  font-size: .74rem;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--muted);
}
.next-days {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: clamp(3.4rem, 8vw, 4.6rem);
  line-height: 1;
  margin: 10px 0 8px;
  background: var(--grad-text);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  font-variant-numeric: tabular-nums;
}
.next-days small { font-size: 1.1rem; margin-left: 8px; -webkit-text-fill-color: var(--muted); font-weight: 500; }
.next-what { margin: 0; font-weight: 500; color: var(--text); }
.next-date { margin: 4px 0 0; color: var(--muted); font-size: .92rem; }

/* Layout: tool on the left, lead form on the right */
.tool-split {
  display: grid;
  grid-template-columns: minmax(0, 1.6fr) minmax(280px, 1fr);
  gap: 36px;
  align-items: start;
}
.tool-main { min-width: 0; }
.tool-note { color: var(--muted-2); font-size: .86rem; margin-top: 18px; }

/* Filter chips */
.filter-row { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 18px; }
.filter-chip {
  font: 500 .88rem var(--font-head);
  padding: 8px 16px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, .03);
  color: var(--muted);
  cursor: pointer;
  transition: background .2s, color .2s, border-color .2s;
}
.filter-chip:hover { color: var(--text); border-color: var(--border-2); }
.filter-chip[aria-pressed="true"] { background: var(--text); color: var(--bg); border-color: var(--text); }
.filter-chip:focus-visible, .q-row input:focus-visible + .q-switch, .lead-form :focus-visible { outline: 2px solid var(--accent-2); outline-offset: 2px; }

/* Due-date list */
.due-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }
.due-row {
  display: grid;
  grid-template-columns: 64px minmax(0, 1fr) 128px;
  gap: 18px;
  align-items: center;
  padding: 14px 18px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
}
.due-row.is-soon { border-color: rgba(255, 138, 122, .45); }
.due-date {
  display: grid;
  justify-items: center;
  font-family: var(--font-head);
  font-size: .78rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--muted);
  line-height: 1.1;
}
.due-date b { font-size: 1.7rem; color: var(--text); letter-spacing: 0; font-variant-numeric: tabular-nums; }
.due-body { display: grid; gap: 4px; min-width: 0; }
.due-label { font-weight: 500; color: var(--text); }
.due-meta { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; font-size: .86rem; color: var(--muted); }
.due-left { display: grid; gap: 6px; justify-items: end; font: 500 .86rem var(--font-head); color: var(--muted); }
.due-row.is-near .due-left { color: var(--law-it); }
.due-row.is-soon .due-left { color: var(--soon); }
.due-gauge { display: block; width: 100%; height: 4px; border-radius: 4px; background: rgba(255, 255, 255, .07); overflow: hidden; }
.due-gauge > i { display: block; height: 100%; border-radius: 4px; background: var(--grad); }
.due-row.is-soon .due-gauge > i { background: var(--soon); }
.due-empty { color: var(--muted); padding: 18px; border: 1px dashed var(--border); border-radius: var(--radius-sm); }

.law {
  display: inline-block;
  font: 600 .7rem var(--font-head);
  letter-spacing: .06em;
  text-transform: uppercase;
  padding: 3px 8px;
  border-radius: 6px;
  background: rgba(255, 255, 255, .06);
  white-space: nowrap;
}
.law-gst { color: var(--law-gst); }
.law-tds { color: var(--law-tds); }
.law-incometax { color: var(--law-it); }
.law-pfesi { color: var(--law-pf); }

/* Lead form card */
.lead-card {
  position: sticky;
  top: 96px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 26px;
}
.lead-card h2 { font-size: 1.35rem; margin: 0; }
.lead-sub { color: var(--muted); font-size: .94rem; margin: 6px 0 18px; }
.lead-form { display: grid; gap: 10px; }
.lead-form input[type="text"], .lead-form input[type="email"], .lead-form input[type="tel"], .lead-form input[type="month"] {
  width: 100%;
  min-width: 0;
  font: inherit;
  font-size: .95rem;
  color: var(--text);
  background: rgba(255, 255, 255, .04);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 11px 14px;
  color-scheme: dark;
}
.lead-form input::placeholder { color: var(--muted-2); }
.lead-form input:focus { border-color: var(--border-2); outline: none; }
.field-pair { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.field-label { font-size: .82rem; color: var(--muted); margin-bottom: -4px; }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; opacity: 0; }
.consent-intro, .consent-foot { font-size: .8rem; color: var(--muted-2); margin: 6px 0 0; line-height: 1.5; }
.consent-foot a { color: var(--muted); text-decoration: underline; }
.consent-boxes { display: grid; gap: 8px; }
.consent-row { display: grid; grid-template-columns: 18px 1fr; gap: 10px; align-items: start; font-size: .86rem; color: var(--muted); cursor: pointer; }
.consent-row input { margin-top: 3px; accent-color: var(--accent); }
.consent-row em { font-style: normal; color: var(--muted-2); }
.lead-form .btn { justify-content: center; margin-top: 8px; }
.lead-form .btn:disabled { opacity: .6; cursor: wait; transform: none; }
.form-status { margin: 0; min-height: 1.2em; font-size: .88rem; color: var(--muted); }
.form-status.is-ok { color: var(--law-pf); }
.form-status.is-error { color: var(--soon); }

/* Reference tables */
.ref-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; }
.ref-group h3 { font-size: 1.05rem; margin: 0 0 10px; }
.table-scroll { overflow-x: auto; }
.ref-table { width: 100%; border-collapse: collapse; font-size: .88rem; }
.ref-table th { text-align: left; font: 500 .72rem var(--font-head); letter-spacing: .12em; text-transform: uppercase; color: var(--muted-2); padding: 0 8px 8px 0; }
.ref-table td { padding: 10px 8px 10px 0; border-top: 1px solid var(--border); color: var(--muted); vertical-align: top; }
.ref-table .ref-when { color: var(--text); font-weight: 500; white-space: nowrap; }

/* NAAC criteria */
.crit-list { display: grid; gap: 14px; }
.crit {
  margin: 0;
  padding: 18px 20px 12px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  min-width: 0;
}
.crit legend { float: left; width: 100%; padding: 0; font: 600 1.02rem var(--font-head); color: var(--text); }
.crit-n { display: block; font: 500 .72rem var(--font-head); letter-spacing: .14em; text-transform: uppercase; color: var(--accent); margin-bottom: 4px; }
.crit-bar { clear: both; height: 4px; border-radius: 4px; background: rgba(255, 255, 255, .07); margin: 12px 0 6px; overflow: hidden; }
.crit-bar i { display: block; height: 100%; width: 0; border-radius: 4px; background: var(--soon); transition: width .35s ease; }
.crit-bar.is-mid i { background: var(--law-it); }
.crit-bar.is-good i { background: var(--law-pf); }
.q-row { display: grid; grid-template-columns: 40px 1fr; gap: 12px; align-items: center; padding: 9px 0; cursor: pointer; border-top: 1px solid var(--border); }
.q-row:first-of-type { border-top: 0; }
.q-row input { position: absolute; opacity: 0; width: 1px; height: 1px; }
.q-switch { width: 38px; height: 22px; border-radius: 22px; background: rgba(255, 255, 255, .1); position: relative; transition: background .2s; }
.q-switch::after { content: ""; position: absolute; top: 3px; left: 3px; width: 16px; height: 16px; border-radius: 50%; background: var(--muted); transition: transform .2s, background .2s; }
.q-row input:checked + .q-switch { background: rgba(var(--accent-rgb), .45); }
.q-row input:checked + .q-switch::after { transform: translateX(16px); background: var(--text); }
.q-text { font-size: .93rem; color: var(--muted); }
.q-row input:checked ~ .q-text { color: var(--text); }

.score-card { text-align: left; }
.ring { position: relative; width: 132px; height: 132px; margin: 12px 0 10px; }
.ring svg { width: 100%; height: 100%; transform: rotate(-90deg); }
.ring circle { fill: none; stroke-width: 10; }
.ring-bg { stroke: rgba(255, 255, 255, .08); }
.ring-fg { stroke: var(--accent-2); stroke-linecap: round; transition: stroke-dashoffset .45s ease; }
.ring-num { position: absolute; inset: 0; display: grid; place-content: center; grid-auto-flow: column; align-items: baseline; font-family: var(--font-head); }
.ring-num b { font-size: 2.3rem; font-variant-numeric: tabular-nums; }
.ring-num small { color: var(--muted); margin-left: 2px; }

/* CTA, FAQ and hub */
.tool-cta { display: flex; flex-wrap: wrap; gap: 28px; align-items: center; justify-content: space-between; }
.tool-cta > div { max-width: 640px; }
.tool-narrow { max-width: 820px; }
.faq { display: grid; gap: 10px; margin-top: 24px; }
.faq-item { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 0 20px; }
.faq-item summary { cursor: pointer; padding: 16px 0; font: 500 1rem var(--font-head); color: var(--text); list-style: none; display: flex; justify-content: space-between; gap: 16px; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: "+"; color: var(--accent); font-size: 1.2rem; line-height: 1; }
.faq-item[open] summary::after { content: "–"; }
.faq-item p { margin: 0 0 16px; color: var(--muted); }

.tool-cards { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px; }
.tool-card {
  display: grid;
  gap: 10px;
  padding: 28px;
  border-radius: var(--radius);
  background: linear-gradient(160deg, rgba(var(--accent-2-rgb), .1), rgba(255, 255, 255, .02));
  border: 1px solid rgba(var(--accent-2-rgb), .25);
  color: var(--text);
  transition: transform .2s, box-shadow .25s;
}
.tool-card:hover { transform: translateY(-3px); box-shadow: 0 0 60px -18px rgba(var(--accent-rgb), .6); color: var(--text); }
.tool-card-for { font: 500 .74rem var(--font-head); letter-spacing: .14em; text-transform: uppercase; color: var(--accent); }
.tool-card h2 { margin: 0; font-size: 1.5rem; }
.tool-card p { margin: 0; color: var(--muted); }
.tool-card-go { font: 500 .92rem var(--font-head); color: var(--accent-2); margin-top: 6px; }

@media (max-width: 960px) {
  .tool-hero-grid, .tool-split { grid-template-columns: 1fr; }
  .lead-card { position: static; }
  .ref-grid { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  .tool-cards { grid-template-columns: 1fr; }
  .due-row { grid-template-columns: 52px minmax(0, 1fr); }
  .due-left { grid-column: 2; justify-items: start; }
  .due-gauge { max-width: 160px; }
  .field-pair { grid-template-columns: 1fr; }
}
@media (prefers-reduced-motion: reduce) {
  .crit-bar i, .ring-fg, .tool-card, .q-switch, .q-switch::after { transition: none; }
}

/* Calculators: late fee and NAAC planner */
.calc-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 22px; }
.calc-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px 16px; }
.calc-grid[hidden], .calc-field[hidden] { display: none; }
.calc-wide { grid-column: 1 / -1; }
.calc-field { display: grid; gap: 6px; min-width: 0; }
.calc-field > span { font-size: .82rem; color: var(--muted); }
.calc-field input[type="date"], .calc-field input[type="month"], .calc-field input[type="number"], .calc-field select {
  width: 100%;
  min-width: 0;
  font: inherit;
  font-size: .95rem;
  color: var(--text);
  background: rgba(255, 255, 255, .04);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 11px 14px;
  color-scheme: dark;
}
.calc-field select option { background: var(--bg-2); }
.calc-field input:focus, .calc-field select:focus { outline: none; border-color: var(--border-2); box-shadow: 0 0 0 3px rgba(var(--accent-rgb), .18); }
.calc-check { display: flex; gap: 10px; align-items: center; font-size: .92rem; color: var(--text); cursor: pointer; }
.calc-check input { accent-color: var(--accent); width: 16px; height: 16px; }
.calc-sub { color: var(--muted-2); font-size: .86rem; margin: 6px 0 0; }
.calc-sub a { color: var(--muted); text-decoration: underline; }
.calc-cta { width: 100%; justify-content: center; }

.result-card { margin-top: 16px; background: linear-gradient(160deg, rgba(var(--accent-2-rgb), .08), rgba(255, 255, 255, .01)); border: 1px solid var(--border-2); border-radius: var(--radius); padding: 6px 22px; }
.result-rows { margin: 0; }
.result-row { display: flex; justify-content: space-between; gap: 18px; padding: 13px 0; border-top: 1px solid var(--border); }
.result-row:first-child { border-top: 0; }
.result-row dt { color: var(--muted); font-size: .92rem; }
.result-row dd { margin: 0; text-align: right; font-family: var(--font-head); font-variant-numeric: tabular-nums; }

.timeline { list-style: none; margin: 18px 0 0; padding: 0; position: relative; }
.timeline::before { content: ""; position: absolute; left: 9px; top: 8px; bottom: 8px; width: 2px; background: var(--border); }
.tl-step { position: relative; display: grid; grid-template-columns: 20px minmax(0, 1fr); gap: 16px; padding: 10px 0; }
.tl-dot { width: 20px; height: 20px; border-radius: 50%; background: var(--bg); border: 2px solid var(--border-2); margin-top: 14px; z-index: 1; }
.tl-body { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 14px 18px; }
.tl-body b { display: block; font-family: var(--font-head); font-size: 1.02rem; margin-top: 2px; }
.tl-body p { margin: 4px 0 0; color: var(--muted); font-size: .9rem; }
.tl-when { font-size: .78rem; letter-spacing: .04em; color: var(--muted-2); }
.tl-step.is-past { opacity: .55; }
.tl-step.is-past .tl-dot { background: var(--muted-2); border-color: var(--muted-2); }
.tl-step.is-now .tl-dot, .tl-step.is-soon .tl-dot { background: var(--soon); border-color: var(--soon); }
.tl-step.is-now .tl-body, .tl-step.is-soon .tl-body { border-color: rgba(255, 138, 122, .45); }
.tl-step.is-now .tl-when, .tl-step.is-soon .tl-when { color: var(--soon); }
.tl-note .tl-dot { border-style: dashed; }
.ring-fg.is-low { stroke: var(--soon); }

@media (max-width: 640px) {
  .calc-grid { grid-template-columns: 1fr; }
  .calc-card { padding: 18px; }
  .result-row { flex-direction: column; gap: 4px; }
  .result-row dd { text-align: left; }
}

/* Guides */
.guide-hero h1 { font-size: clamp(1.9rem, 4vw, 2.8rem); max-width: 900px; }
.guide-hero .lead { max-width: 760px; }
.guide-meta { color: var(--muted-2); font-size: .86rem; margin-top: 10px; }
.guide-grid { display: grid; grid-template-columns: minmax(0, 1fr) 300px; gap: 48px; align-items: start; }
.guide { max-width: 760px; min-width: 0; font-size: 1.02rem; line-height: 1.75; color: #D9E4EE; }
.guide h2 { font-size: 1.45rem; margin: 40px 0 12px; color: var(--text); }
.guide p { margin: 0 0 16px; }
.guide ul { margin: 0 0 18px; padding-left: 22px; }
.guide li { margin: 6px 0; }
.guide a { color: var(--accent-2); text-decoration: underline; text-underline-offset: 3px; }
.guide .table-scroll { margin: 8px 0 16px; }
.guide-answer { background: linear-gradient(160deg, rgba(var(--accent-2-rgb), .12), rgba(255, 255, 255, .02)); border: 1px solid var(--border-2); border-radius: var(--radius); padding: 20px 22px; }
.guide-answer b { color: var(--text); }
.guide-note { color: var(--muted-2); font-size: .88rem; border-top: 1px solid var(--border); padding-top: 16px; margin-top: 28px; }
.guide-side-h { font-size: .8rem; letter-spacing: .14em; text-transform: uppercase; color: var(--muted); margin: 24px 0 8px; }
.guide-related { list-style: none; padding: 0; margin: 0; display: grid; gap: 8px; }
.guide-related a { color: var(--accent-2); font-size: .94rem; }
@media (max-width: 900px) {
  .guide-grid { grid-template-columns: 1fr; gap: 28px; }
  .guide-side { position: static; }
}