/* ==========================================================================
   Tools — quiz, scam calc, reliability viz, buying planner, alternative finder,
   priority analyzer, comparison planner, decision tracker, review database, fake review detector
   ========================================================================== */

.nrv-tool { background: linear-gradient(180deg, #fff 0%, #f1f3f7 100%); }
.nrv-tool .nrv-section__header { margin-bottom: 32px; }

/* ============== Quiz ============== */
.nrv-quiz__shell { max-width: 720px; margin: 0 auto; background: #fff; border-radius: var(--nrv-radius-lg); padding: 32px; box-shadow: var(--nrv-shadow-lg); border: 1px solid rgba(17,24,39,0.06); }
.nrv-quiz__progress { display: flex; align-items: center; gap: 14px; margin-bottom: 28px; }
.nrv-quiz__progress-bar { flex: 1; height: 6px; background: rgba(17,24,39,0.08); border-radius: 999px; position: relative; overflow: hidden; }
.nrv-quiz__progress-bar::after { content: ''; position: absolute; inset: 0; width: var(--p); background: var(--nrv-gradient-warn); border-radius: inherit; transition: width .35s cubic-bezier(0.22,0.6,0.36,1); }
.nrv-quiz__progress-label { font-size: 0.8rem; font-weight: 600; color: var(--nrv-text-2); white-space: nowrap; }
.nrv-quiz__step { border: 0; margin: 0; padding: 0; animation: nrv-fade-in .35s ease; }
.nrv-quiz__question { font-family: var(--nrv-font-head); font-size: var(--nrv-step-3); font-weight: 700; margin: 0 0 24px; color: var(--nrv-charcoal); }
.nrv-quiz__opts { display: grid; grid-template-columns: 1fr; gap: 10px; margin-bottom: 18px; }
@media (min-width: 600px) { .nrv-quiz__opts { grid-template-columns: 1fr 1fr; } }
.nrv-quiz__opt { display: flex; align-items: center; gap: 12px; padding: 14px 16px; background: rgba(220,38,38,0.04); border: 2px solid rgba(220,38,38,0.12); border-radius: 12px; text-align: left; transition: all .2s ease; color: var(--nrv-charcoal); font-weight: 500; }
.nrv-quiz__opt:hover { background: rgba(220,38,38,0.1); border-color: var(--nrv-red); transform: translateY(-1px); }
.nrv-quiz__opt-icon { font-size: 1.3rem; }
.nrv-quiz__nav { display: flex; justify-content: space-between; align-items: center; gap: 12px; margin-top: 16px; }
.nrv-quiz__nav-hint { font-size: 0.8rem; color: var(--nrv-text-2); margin-left: auto; }

.nrv-quiz__result { animation: nrv-fade-in .4s ease; }
.nrv-quiz__result-title { font-size: var(--nrv-step-4); margin: 8px 0 4px; }
.nrv-quiz__result-sub { color: var(--nrv-text-2); margin-bottom: 20px; }
.nrv-quiz__result-stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px,1fr)); gap: 10px; margin-bottom: 22px; }
.nrv-quiz__result-stats .nrv-stat { background: rgba(220,38,38,0.06); border-color: rgba(220,38,38,0.16); color: var(--nrv-charcoal); }
.nrv-quiz__result-stats .nrv-stat__label { color: var(--nrv-text-2); }
.nrv-quiz__result-cta { display: flex; flex-wrap: wrap; gap: 10px; }

@keyframes nrv-fade-in { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: translateY(0); } }

/* ============== Calculator / scam-risk ============== */
.nrv-calc__shell { max-width: 960px; margin: 0 auto; background: #fff; border-radius: var(--nrv-radius-lg); padding: 32px; box-shadow: var(--nrv-shadow-lg); border: 1px solid rgba(17,24,39,0.06); }
.nrv-calc__form { display: grid; grid-template-columns: 1fr; gap: 16px; }
@media (min-width: 700px) { .nrv-calc__form { grid-template-columns: 1fr 1fr; } }
.nrv-calc__cta { grid-column: 1 / -1; display: flex; justify-content: center; margin-top: 8px; }

.nrv-calc__result { margin-top: 28px; padding: 24px; background: linear-gradient(135deg, rgba(220,38,38,0.06), rgba(245,158,11,0.06)); border-radius: 16px; border: 1px solid rgba(220,38,38,0.12); animation: nrv-fade-in .35s ease; }
.nrv-calc__result-head { margin-bottom: 14px; }
.nrv-calc__result-title { margin: 8px 0 4px; }
.nrv-calc__result-stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(130px,1fr)); gap: 10px; margin-bottom: 14px; }
.nrv-calc__result-note { color: var(--nrv-text-2); font-size: 0.92rem; margin-bottom: 12px; }
.nrv-calc__result-list { list-style: none; padding: 0; margin: 0 0 16px; display: flex; flex-direction: column; gap: 6px; font-size: 0.9rem; }
.nrv-calc__result-list li { padding: 8px 12px; background: rgba(220,38,38,0.06); border-left: 3px solid var(--nrv-red); border-radius: 6px; color: var(--nrv-charcoal); }
.nrv-calc__result-cta { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 14px; }
.nrv-calc__disclaimer { font-size: 0.8rem; color: var(--nrv-text-2); }
.nrv-calc__result .nrv-stat { background: #fff; color: var(--nrv-charcoal); border-color: rgba(17,24,39,0.06); }
.nrv-calc__result .nrv-stat__label { color: var(--nrv-text-2); }

/* ============== Reliability Visualizer ============== */
.nrv-viz__shell { max-width: 1100px; margin: 0 auto; display: grid; grid-template-columns: 1fr; gap: 24px; }
@media (min-width: 900px) { .nrv-viz__shell { grid-template-columns: 1fr 1.4fr; align-items: start; } }
.nrv-viz__controls { background: #fff; padding: 24px; border-radius: var(--nrv-radius); box-shadow: var(--nrv-shadow); border: 1px solid rgba(17,24,39,0.05); display: flex; flex-direction: column; gap: 14px; }
.nrv-viz__dashboard { background: var(--nrv-gradient-bg); color: #fff; padding: 28px; border-radius: var(--nrv-radius-lg); box-shadow: var(--nrv-shadow-lg); position: relative; overflow: hidden; }
.nrv-viz__dashboard::before { content: ''; position: absolute; top: -100px; right: -100px; width: 320px; height: 320px; border-radius: 50%; background: radial-gradient(circle, rgba(220,38,38,0.3), transparent 70%); filter: blur(40px); }
.nrv-viz__dashboard > * { position: relative; z-index: 1; }
.nrv-viz__bigstat { text-align: center; margin-bottom: 28px; padding: 20px; background: rgba(255,255,255,0.05); border-radius: 16px; border: 1px solid rgba(255,255,255,0.1); }
.nrv-viz__bigstat-label { display: block; font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.08em; color: rgba(255,255,255,0.65); }
.nrv-viz__bigstat-value { display: block; font-family: var(--nrv-font-head); font-size: var(--nrv-step-5); font-weight: 800; background: linear-gradient(180deg, var(--nrv-amber), #fde68a); -webkit-background-clip: text; background-clip: text; color: transparent; margin: 4px 0; transition: color .3s ease; }
.nrv-viz__bigstat-sub { font-size: 0.85rem; color: rgba(255,255,255,0.65); }
.nrv-viz__bars { display: flex; flex-direction: column; gap: 16px; margin-bottom: 24px; }
.nrv-viz__bar { display: grid; grid-template-columns: 1fr 2fr 1fr; gap: 12px; align-items: center; font-size: 0.9rem; }
.nrv-viz__bar-label { color: rgba(255,255,255,0.78); }
.nrv-viz__bar-track { height: 10px; background: rgba(255,255,255,0.08); border-radius: 999px; overflow: hidden; }
.nrv-viz__bar-fill { display: block; height: 100%; width: var(--w); transition: width .8s cubic-bezier(0.22,0.6,0.36,1); border-radius: 999px; }
.nrv-viz__bar-fill--bad  { background: linear-gradient(90deg, var(--nrv-red), var(--nrv-amber)); }
.nrv-viz__bar-fill--good { background: linear-gradient(90deg, var(--nrv-amber), #fde68a); box-shadow: 0 0 16px rgba(245,158,11,0.4); }
.nrv-viz__bar-value { font-family: var(--nrv-font-head); font-weight: 700; text-align: right; }
.nrv-viz__chips { display: grid; grid-template-columns: repeat(auto-fit, minmax(110px,1fr)); gap: 10px; margin-bottom: 18px; }
.nrv-viz__disclaimer { font-size: 0.75rem; color: rgba(255,255,255,0.55); margin-top: 14px; }

/* ============== Smart Buying Planner (utility-style) ============== */
.nrv-utility__shell { max-width: 1080px; margin: 0 auto; display: grid; grid-template-columns: 1fr; gap: 24px; align-items: start; }
@media (min-width: 900px) { .nrv-utility__shell { grid-template-columns: 1.2fr 1fr; } }
.nrv-utility__form { background: #fff; padding: 24px; border-radius: var(--nrv-radius); box-shadow: var(--nrv-shadow); border: 1px solid rgba(17,24,39,0.05); display: grid; gap: 14px; }
.nrv-utility__cta { display: flex; justify-content: center; margin-top: 6px; }
.nrv-utility__result { background: var(--nrv-gradient-bg); color: #fff; padding: 28px; border-radius: var(--nrv-radius-lg); box-shadow: var(--nrv-shadow-lg); }
.nrv-utility__compare { display: grid; grid-template-columns: 1fr auto 1fr; gap: 14px; align-items: center; margin-bottom: 20px; text-align: center; }
.nrv-utility__col { padding: 18px; background: rgba(255,255,255,0.06); border-radius: 14px; border: 1px solid rgba(255,255,255,0.1); }
.nrv-utility__col span { display: block; font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.06em; opacity: .7; }
.nrv-utility__col strong { display: block; font-family: var(--nrv-font-head); font-size: 2rem; margin: 4px 0; }
.nrv-utility__col small { opacity: .65; font-size: 0.78rem; }
.nrv-utility__col--good { border-color: rgba(245,158,11,0.4); }
.nrv-utility__col--good strong { color: var(--nrv-amber); }
.nrv-utility__arrow { font-size: 1.8rem; color: var(--nrv-red); }
.nrv-utility__summary { font-size: 0.95rem; color: rgba(255,255,255,0.78); margin-bottom: 16px; }
.nrv-utility__list { list-style: none; padding: 0; margin: 0 0 16px; display: flex; flex-direction: column; gap: 6px; font-size: 0.88rem; color: rgba(255,255,255,0.78); }
.nrv-utility__list li::before { content: '→ '; color: var(--nrv-amber); font-weight: 700; }
.nrv-utility__disclaimer { font-size: 0.75rem; color: rgba(255,255,255,0.55); margin-top: 14px; }

/* ============== Alternative Finder / Smart Home Planner ============== */
.nrv-planner__shell { max-width: 1100px; margin: 0 auto; display: grid; grid-template-columns: 1fr; gap: 24px; align-items: start; }
@media (min-width: 900px) { .nrv-planner__shell { grid-template-columns: 1.4fr 1fr; } }
.nrv-planner__categories { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px,1fr)); gap: 14px; }
.nrv-planner__cat { display: flex; flex-direction: column; align-items: center; gap: 8px; padding: 20px 14px; background: #fff; border: 2px solid rgba(17,24,39,0.06); border-radius: 14px; cursor: pointer; text-align: center; transition: all .2s ease; position: relative; }
.nrv-planner__cat:hover { transform: translateY(-2px); border-color: var(--nrv-red); }
.nrv-planner__cat input { position: absolute; opacity: 0; }
.nrv-planner__cat:has(input:checked) { background: linear-gradient(135deg, rgba(220,38,38,0.1), rgba(245,158,11,0.1)); border-color: var(--nrv-red); box-shadow: var(--nrv-glow); }
.nrv-planner__cat-icon { font-size: 2rem; }
.nrv-planner__cat-name { font-weight: 600; font-size: 0.9rem; color: var(--nrv-charcoal); }
.nrv-planner__output { background: #fff; padding: 24px; border-radius: var(--nrv-radius); border: 1px solid rgba(220,38,38,0.16); box-shadow: var(--nrv-shadow); position: sticky; top: 96px; }
.nrv-planner__empty { color: var(--nrv-text-2); font-size: 0.9rem; padding: 16px; background: rgba(220,38,38,0.04); border-radius: 10px; border: 1px dashed rgba(220,38,38,0.18); }
.nrv-planner__item-cta { font-weight: 600; font-size: 0.85rem; white-space: nowrap; }
.nrv-planner__list { list-style: none; padding: 0; margin: 0 0 16px; display: flex; flex-direction: column; gap: 8px; }
.nrv-planner__list li { display: flex; align-items: center; justify-content: space-between; padding: 12px 14px; background: rgba(220,38,38,0.05); border-radius: 10px; font-size: 0.9rem; }
.nrv-planner__list a { font-weight: 600; font-size: 0.85rem; }
.nrv-planner__cta { display: flex; gap: 10px; flex-wrap: wrap; }

/* ============== Priority Analyzer (Prioritizer) ============== */
.nrv-prioritizer__shell { max-width: 1100px; margin: 0 auto; display: grid; grid-template-columns: 1fr; gap: 24px; align-items: start; }
@media (min-width: 900px) { .nrv-prioritizer__shell { grid-template-columns: 1.4fr 1fr; } }
.nrv-prioritizer__sliders { background: #fff; padding: 24px; border-radius: var(--nrv-radius); box-shadow: var(--nrv-shadow); border: 1px solid rgba(17,24,39,0.05); display: flex; flex-direction: column; gap: 14px; }
.nrv-prioritizer__row { display: grid; grid-template-columns: 1.4fr 2fr 40px; gap: 12px; align-items: center; font-size: 0.9rem; }
.nrv-prioritizer__label { font-weight: 600; color: var(--nrv-charcoal); }
.nrv-prioritizer__row output { font-family: var(--nrv-font-head); font-weight: 700; color: var(--nrv-red); text-align: right; }
.nrv-prioritizer__output { background: var(--nrv-gradient-bg); color: #fff; padding: 24px; border-radius: var(--nrv-radius-lg); box-shadow: var(--nrv-shadow-lg); }
.nrv-prioritizer__output h3 { color: #fff; }
.nrv-prioritizer__archetype { font-size: 1.05rem; color: rgba(255,255,255,0.85); margin: 0 0 14px; }
.nrv-prioritizer__tips { list-style: none; padding: 0; margin: 0 0 16px; display: flex; flex-direction: column; gap: 6px; font-size: 0.88rem; color: rgba(255,255,255,0.78); }
.nrv-prioritizer__tips li::before { content: '→ '; color: var(--nrv-amber); font-weight: 700; }

/* ============== Climate / Fake-Review Detector ============== */
.nrv-climate__shell { max-width: 1000px; margin: 0 auto; background: #fff; border-radius: var(--nrv-radius-lg); padding: 32px; box-shadow: var(--nrv-shadow-lg); border: 1px solid rgba(17,24,39,0.06); }
.nrv-climate__controls { display: grid; grid-template-columns: 1fr; gap: 14px; margin-bottom: 24px; }
@media (min-width: 700px) { .nrv-climate__controls { grid-template-columns: 1fr 1fr 1fr; } }
.nrv-climate__result { display: grid; grid-template-columns: 1fr; gap: 24px; padding: 24px; background: linear-gradient(135deg, rgba(220,38,38,0.05), rgba(245,158,11,0.05)); border-radius: 16px; align-items: center; }
@media (min-width: 700px) { .nrv-climate__result { grid-template-columns: 180px 1fr; } }
.nrv-climate__dial { width: 180px; height: 180px; color: var(--nrv-charcoal); }
.nrv-climate__dial circle { transition: stroke-dashoffset .6s cubic-bezier(0.22,0.6,0.36,1); }
.nrv-climate__copy h3 { margin-top: 0; }
.nrv-climate__notes { list-style: none; padding: 0; margin: 12px 0; font-size: 0.9rem; color: var(--nrv-text-2); }
.nrv-climate__notes li { padding: 6px 0; }
.nrv-climate__notes li::before { content: '• '; color: var(--nrv-red); font-weight: 700; }
.nrv-climate__disclaimer { font-size: 0.8rem; color: var(--nrv-text-2); margin-top: 16px; }

/* ============== Decision Tracker ============== */
.nrv-tracker__shell { max-width: 1100px; margin: 0 auto; background: #fff; border-radius: var(--nrv-radius-lg); padding: 32px; box-shadow: var(--nrv-shadow-lg); border: 1px solid rgba(17,24,39,0.06); }
.nrv-tracker__form { display: grid; grid-template-columns: 1fr; gap: 14px; margin-bottom: 24px; align-items: end; }
@media (min-width: 768px) { .nrv-tracker__form { grid-template-columns: 1.4fr 1fr 1.4fr auto; } }
.nrv-tracker__chart { display: flex; align-items: flex-end; gap: 6px; height: 200px; padding: 14px; background: linear-gradient(180deg, rgba(220,38,38,0.04), transparent); border-radius: 12px; margin-bottom: 18px; overflow-x: auto; }
.nrv-tracker__chart .nrv-bar { flex: 1; min-width: 24px; background: var(--nrv-gradient-warn); border-radius: 6px 6px 0 0; position: relative; transition: height .35s ease; min-height: 4px; }
.nrv-tracker__chart .nrv-bar::after { content: attr(data-l); position: absolute; bottom: -22px; left: 50%; transform: translateX(-50%); font-size: 0.7rem; color: var(--nrv-text-2); white-space: nowrap; }
.nrv-tracker__summary { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px,1fr)); gap: 10px; margin-bottom: 18px; }
.nrv-tracker__summary .nrv-stat { background: rgba(220,38,38,0.05); border-color: rgba(220,38,38,0.12); color: var(--nrv-charcoal); }
.nrv-tracker__summary .nrv-stat__label { color: var(--nrv-text-2); }
.nrv-tracker__table { width: 100%; border-collapse: collapse; margin-bottom: 16px; }
.nrv-tracker__table th, .nrv-tracker__table td { padding: 10px 12px; text-align: left; font-size: 0.9rem; border-bottom: 1px solid rgba(17,24,39,0.06); }
.nrv-tracker__table th { color: var(--nrv-text-2); font-weight: 600; font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.04em; }
.nrv-tracker__cta { display: flex; gap: 10px; flex-wrap: wrap; }

/* ============== Review Intelligence Database ============== */
.nrv-db { background: linear-gradient(180deg, #fff 0%, #f1f3f7 100%); }
.nrv-db__controls { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 24px; max-width: 920px; margin-left: auto; margin-right: auto; justify-content: center; }
.nrv-db__search { flex: 1; min-width: 240px; padding: 12px 16px; border: 1px solid rgba(17,24,39,0.1); border-radius: 12px; font: inherit; background: #fff; }
.nrv-db__controls select { padding: 12px 14px; border: 1px solid rgba(17,24,39,0.1); border-radius: 12px; background: #fff; font: inherit; }
.nrv-db__grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px,1fr)); gap: 16px; }
.nrv-db__card { background: #fff; border: 1px solid rgba(17,24,39,0.06); border-radius: var(--nrv-radius); padding: 20px; display: flex; flex-direction: column; gap: 12px; transition: all .2s ease; }
.nrv-db__card:hover { transform: translateY(-2px); box-shadow: var(--nrv-shadow); border-color: var(--nrv-red); }
.nrv-db__head { display: flex; flex-direction: column; gap: 6px; }
.nrv-db__name { font-size: 1.05rem; margin: 0; }
.nrv-db__specs { list-style: none; padding: 0; margin: 0; font-size: 0.82rem; color: var(--nrv-text-2); }
.nrv-db__specs li { padding: 3px 0; }
.nrv-db__score { display: flex; align-items: center; gap: 10px; font-size: 0.82rem; }
.nrv-db__score > span { position: relative; display: block; flex: 1; height: 6px; background: rgba(17,24,39,0.08); border-radius: 999px; overflow: hidden; }
.nrv-db__score > span::after { content: ''; position: absolute; inset: 0; width: 100%; background: var(--nrv-gradient-warn); transform-origin: left; }
.nrv-db__empty { text-align: center; padding: 40px; color: var(--nrv-text-2); }

/* ============== Comparison Planner / Comfort Generator pattern ============== */
.nrv-comfort__shell { max-width: 1100px; margin: 0 auto; display: grid; grid-template-columns: 1fr; gap: 24px; align-items: start; }
@media (min-width: 900px) { .nrv-comfort__shell { grid-template-columns: 1.2fr 1fr; } }
.nrv-comfort__controls { background: #fff; padding: 24px; border-radius: var(--nrv-radius); box-shadow: var(--nrv-shadow); border: 1px solid rgba(17,24,39,0.05); display: grid; grid-template-columns: 1fr; gap: 14px; }
@media (min-width: 600px) { .nrv-comfort__controls { grid-template-columns: 1fr 1fr; } }
.nrv-comfort__output { background: var(--nrv-gradient-bg); color: #fff; padding: 24px; border-radius: var(--nrv-radius-lg); box-shadow: var(--nrv-shadow-lg); display: flex; flex-direction: column; gap: 12px; }
.nrv-comfort__output h3 { color: #fff; margin-top: 0; }
.nrv-comfort__notes { list-style: none; padding: 0; margin: 12px 0; font-size: 0.88rem; color: rgba(255,255,255,0.78); }
.nrv-comfort__notes li { padding: 4px 0; }
.nrv-comfort__notes li::before { content: '→ '; color: var(--nrv-amber); }
.nrv-comfort__disclaimer { font-size: 0.78rem; color: rgba(255,255,255,0.55); margin-top: 14px; }