/* RevPilot — cockpit / instrument-panel identity
   Theme lock: dark control room. Accent lock: signal amber.
   Red and green appear only as functional data colors in the calculator. */

:root {
  --bg: #0b0d10;
  --bg-2: #0f1217;
  --panel: #14171c;
  --panel-2: #181c22;
  --line: #242a32;
  --line-bright: #313944;

  --text: #f2f4f7;
  --text-mut: #9aa3af;
  --text-dim: #6b7480;

  --accent: #ff7a1a;
  --accent-soft: #ffa35e;
  --accent-ink: #1a0f06;

  --loss: #ff5a52;
  --gain: #2ee08a;

  --radius: 6px;
  --radius-lg: 10px;
  --maxw: 1140px;

  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);

  --font-display: "Space Grotesk", system-ui, sans-serif;
  --font-body: "Inter", system-ui, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, monospace;
}

*,
*::before,
*::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background:
    radial-gradient(1100px 600px at 70% -10%, rgba(255, 122, 26, 0.08), transparent 60%),
    var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
}

.wrap {
  width: 100%;
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: clamp(20px, 5vw, 40px);
}

h1, h2, h3 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.08;
  letter-spacing: -0.02em;
  margin: 0;
}

a { color: inherit; }

.skip-link {
  position: absolute;
  left: -999px;
  top: 8px;
  background: var(--accent);
  color: var(--accent-ink);
  padding: 10px 16px;
  border-radius: var(--radius);
  font-weight: 600;
  z-index: 100;
}
.skip-link:focus { left: 16px; }

:focus-visible {
  outline: 2px solid var(--accent-soft);
  outline-offset: 3px;
  border-radius: 3px;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 44px;
  padding: 12px 22px;
  border-radius: var(--radius);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.98rem;
  text-decoration: none;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.15s var(--ease), background 0.15s var(--ease),
    border-color 0.15s var(--ease), box-shadow 0.15s var(--ease);
}
.btn--primary {
  background: var(--accent);
  color: var(--accent-ink);
  box-shadow: 0 0 0 1px rgba(255, 122, 26, 0.4), 0 8px 24px -10px rgba(255, 122, 26, 0.6);
}
.btn--primary:hover { background: var(--accent-soft); transform: translateY(-1px); }
.btn--primary:active { transform: translateY(0); }
.btn--ghost {
  background: transparent;
  color: var(--text);
  border-color: var(--line-bright);
}
.btn--ghost:hover { border-color: var(--accent); color: var(--accent-soft); }
.btn--lg { min-height: 52px; padding: 15px 28px; font-size: 1.05rem; }
.btn--block { width: 100%; }

/* ---------- Eyebrow / section heads ---------- */
.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-dim);
  margin: 0 0 18px;
}
.eyebrow--accent { color: var(--accent); }

.section-head { max-width: 720px; margin-bottom: 56px; }
.section-head h2 { font-size: clamp(1.7rem, 4vw, 2.6rem); }
.section-head__sub { color: var(--text-mut); margin: 18px 0 0; font-size: 1.05rem; }

section { padding-block: clamp(64px, 9vw, 120px); }

/* ---------- Nav ---------- */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(11, 13, 16, 0.82);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}
.nav__inner {
  display: flex;
  align-items: center;
  gap: 28px;
  height: 68px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  text-decoration: none;
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: -0.01em;
}
.brand__mark {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border-radius: var(--radius);
  background: var(--accent);
  color: var(--accent-ink);
  transform: rotate(0deg);
}
.brand__word { font-size: 1.15rem; }
.brand__accent { color: var(--accent); }
.nav__links {
  display: flex;
  gap: 26px;
  margin-left: auto;
}
.nav__links a {
  text-decoration: none;
  color: var(--text-mut);
  font-size: 0.95rem;
  transition: color 0.15s var(--ease);
}
.nav__links a:hover { color: var(--text); }
.nav__cta { margin-left: 8px; }

@media (max-width: 860px) {
  .nav__links { display: none; }
  .nav__cta { margin-left: auto; }
}

/* ---------- Hero ---------- */
.hero { padding-top: clamp(56px, 8vw, 96px); padding-bottom: clamp(40px, 6vw, 72px); }
.hero__inner { max-width: 880px; }
.hero h1 {
  font-size: clamp(2.6rem, 7vw, 5rem);
  font-weight: 700;
  letter-spacing: -0.035em;
}
.hero__sub {
  color: var(--text-mut);
  font-size: clamp(1.05rem, 2.2vw, 1.3rem);
  max-width: 620px;
  margin: 26px 0 36px;
}
.hero__actions { display: flex; flex-wrap: wrap; gap: 14px; }

/* instrument gauge */
.gauge {
  margin-top: clamp(48px, 7vw, 84px);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: linear-gradient(180deg, var(--panel), var(--bg-2));
  padding: clamp(20px, 3vw, 30px);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.03);
}
.gauge__row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}
.gauge__cell {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 16px 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--bg);
}
.gauge__cell--alert { border-color: rgba(255, 90, 82, 0.35); }
.gauge__label {
  font-size: 0.74rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-dim);
  font-family: var(--font-mono);
}
.gauge__readout {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(1.5rem, 3.5vw, 2.1rem);
  color: var(--text);
}
.gauge__readout--loss { color: var(--loss); }
.gauge__unit {
  font-size: 0.7rem;
  color: var(--text-dim);
  margin-left: 6px;
  letter-spacing: 0.04em;
}
.gauge__track {
  margin-top: 18px;
  height: 6px;
  border-radius: 99px;
  background: var(--bg);
  border: 1px solid var(--line);
  overflow: hidden;
}
.gauge__fill {
  display: block;
  height: 100%;
  width: 78%;
  background: linear-gradient(90deg, var(--accent), var(--loss));
  animation: drain 5s var(--ease) infinite alternate;
}
@keyframes drain {
  from { width: 64%; }
  to { width: 88%; }
}
@media (max-width: 720px) {
  .gauge__row { grid-template-columns: 1fr; }
}

/* ---------- Leak / calculator ---------- */
.leak { background: var(--bg-2); border-block: 1px solid var(--line); }
.leak__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(32px, 5vw, 72px);
  align-items: start;
}
.leak__intro h2 { font-size: clamp(1.6rem, 3.6vw, 2.4rem); }
.leak__copy { color: var(--text-mut); margin: 20px 0 28px; }
.leak__notes { list-style: none; padding: 0; margin: 0; display: grid; gap: 14px; }
.leak__notes li {
  display: flex;
  gap: 14px;
  align-items: baseline;
  color: var(--text);
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line);
}
.leak__notes span {
  font-family: var(--font-mono);
  color: var(--accent);
  font-size: 0.85rem;
}

.calc {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: clamp(22px, 3vw, 32px);
}
.calc__field { margin-bottom: 22px; }
.calc__field label {
  display: block;
  font-size: 0.9rem;
  color: var(--text-mut);
  margin-bottom: 10px;
}
.calc__control { display: flex; align-items: center; gap: 16px; }
.calc__control output {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--accent);
  min-width: 78px;
  text-align: right;
}

input[type="range"] {
  -webkit-appearance: none;
  appearance: none;
  flex: 1;
  height: 6px;
  border-radius: 99px;
  background: var(--line-bright);
  cursor: pointer;
}
input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--accent);
  border: 3px solid var(--panel);
  box-shadow: 0 0 0 1px var(--accent);
}
input[type="range"]::-moz-range-thumb {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--accent);
  border: 3px solid var(--panel);
}

.calc__results {
  margin-top: 28px;
  padding-top: 22px;
  border-top: 1px dashed var(--line-bright);
}
.calc__line,
.calc__total {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  padding: 9px 0;
}
.calc__line span,
.calc__total span { color: var(--text-mut); font-size: 0.95rem; }
.num {
  font-family: var(--font-mono);
  font-weight: 700;
  font-variant-numeric: tabular-nums;
}
.num small { font-size: 0.65em; color: var(--text-dim); margin-left: 3px; }
.num--loss { color: var(--loss); }
.num--gain { color: var(--gain); }
.calc__total {
  margin-top: 6px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
}
.calc__total span { color: var(--text); font-weight: 600; font-size: 1rem; }
.num--big { font-size: 1.7rem; color: var(--text); }
.calc__foot {
  margin: 16px 0 24px;
  font-size: 0.92rem;
  color: var(--text-mut);
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 14px 16px;
}
.calc__disclaimer { font-size: 0.78rem; color: var(--text-dim); margin: 16px 0 0; }

@media (max-width: 880px) {
  .leak__grid { grid-template-columns: 1fr; }
}

/* ---------- System / flows ---------- */
.flows {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}
.flow {
  display: flex;
  gap: 18px;
  padding: 26px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  transition: border-color 0.18s var(--ease), transform 0.18s var(--ease);
}
.flow:hover { border-color: var(--line-bright); transform: translateY(-2px); }
.flow--feature {
  grid-column: 1 / -1;
  background: linear-gradient(120deg, rgba(255, 122, 26, 0.1), var(--panel) 55%);
  border-color: rgba(255, 122, 26, 0.4);
}
.flow__no {
  font-family: var(--font-mono);
  font-size: 0.95rem;
  color: var(--accent);
  font-weight: 700;
  padding-top: 3px;
}
.flow__body h3 { font-size: 1.2rem; margin-bottom: 8px; }
.flow--feature .flow__body h3 { font-size: 1.6rem; }
.flow__body p { margin: 0; color: var(--text-mut); font-size: 0.97rem; }
.flow__tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  border: 1px solid rgba(255, 122, 26, 0.4);
  border-radius: 99px;
  padding: 4px 12px;
  margin-bottom: 14px;
}
@media (max-width: 720px) {
  .flows { grid-template-columns: 1fr; }
}

/* ---------- Pricing ---------- */
.tiers {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  align-items: stretch;
}
.tier {
  position: relative;
  display: flex;
  flex-direction: column;
  padding: clamp(26px, 3vw, 38px);
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
}
.tier--featured {
  border-color: var(--accent);
  background: linear-gradient(180deg, rgba(255, 122, 26, 0.08), var(--panel) 40%);
}
.tier__flag {
  position: absolute;
  top: -13px;
  left: clamp(26px, 3vw, 38px);
  background: var(--accent);
  color: var(--accent-ink);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 5px 12px;
  border-radius: 99px;
}
.tier h3 { font-size: 1.35rem; margin-bottom: 16px; }
.tier__price { display: flex; align-items: baseline; gap: 6px; margin: 0; }
.tier__amount {
  font-family: var(--font-mono);
  font-size: 2.8rem;
  font-weight: 700;
  color: var(--text);
}
.tier__per { color: var(--text-dim); font-family: var(--font-mono); }
.tier__setup {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--accent-soft);
  margin: 6px 0 0;
}
.tier__pitch { color: var(--text-mut); margin: 18px 0 22px; font-size: 0.97rem; }
.tier__list {
  list-style: none;
  padding: 0;
  margin: 0 0 28px;
  display: grid;
  gap: 12px;
}
.tier__list li {
  position: relative;
  padding-left: 26px;
  font-size: 0.95rem;
  color: var(--text);
}
.tier__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  width: 12px;
  height: 7px;
  border-left: 2px solid var(--accent);
  border-bottom: 2px solid var(--accent);
  transform: rotate(-45deg);
}
.tier .btn { margin-top: auto; }
.pricing__anchor {
  margin: 36px 0 0;
  color: var(--text-mut);
  font-size: 0.95rem;
  max-width: 760px;
}
@media (max-width: 720px) {
  .tiers { grid-template-columns: 1fr; }
}

/* ---------- Guarantee ---------- */
.guarantee {
  background:
    radial-gradient(700px 360px at 80% 0%, rgba(255, 122, 26, 0.1), transparent 70%),
    var(--bg-2);
  border-block: 1px solid var(--line);
}
.guarantee__inner { max-width: 860px; }
.guarantee h2 { font-size: clamp(1.7rem, 4.4vw, 3rem); }
.guarantee__copy { color: var(--text-mut); font-size: 1.1rem; margin: 24px 0 0; max-width: 680px; }

/* ---------- Steps ---------- */
.steps__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  counter-reset: step;
}
.step {
  padding: 30px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
}
.step__no {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border-radius: var(--radius);
  background: var(--bg);
  border: 1px solid var(--accent);
  color: var(--accent);
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 1.1rem;
  margin-bottom: 20px;
}
.step h3 { font-size: 1.2rem; margin-bottom: 10px; }
.step p { margin: 0; color: var(--text-mut); font-size: 0.97rem; }
@media (max-width: 720px) {
  .steps__list { grid-template-columns: 1fr; }
}

/* ---------- CTA / lead form ---------- */
.cta {
  background:
    radial-gradient(800px 400px at 50% 120%, rgba(255, 122, 26, 0.12), transparent 70%),
    var(--bg);
}
.cta__inner { max-width: 720px; margin-inline: auto; text-align: center; }
.cta h2 { font-size: clamp(1.8rem, 4.6vw, 3rem); }
.cta__copy { color: var(--text-mut); font-size: 1.08rem; margin: 22px auto 40px; max-width: 580px; }

.lead {
  text-align: left;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: clamp(24px, 3vw, 34px);
}
.lead__row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 16px;
}
.lead__field { display: flex; flex-direction: column; gap: 8px; }
.lead__field label { font-size: 0.85rem; color: var(--text-mut); }
.lead input,
.lead select {
  min-height: 48px;
  padding: 12px 14px;
  background: var(--bg);
  border: 1px solid var(--line-bright);
  border-radius: var(--radius);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 1rem;
  transition: border-color 0.15s var(--ease);
}
.lead input:focus,
.lead select:focus { border-color: var(--accent); outline: none; }
.lead input:focus-visible,
.lead select:focus-visible { outline: 2px solid var(--accent-soft); outline-offset: 2px; }
.lead .btn { margin-top: 8px; }
.lead__msg {
  margin: 16px 0 0;
  padding: 14px 16px;
  border-radius: var(--radius);
  background: rgba(46, 224, 138, 0.1);
  border: 1px solid rgba(46, 224, 138, 0.4);
  color: var(--gain);
  font-size: 0.95rem;
}
.lead__alt {
  margin: 18px 0 0;
  text-align: center;
  color: var(--text-dim);
  font-size: 0.9rem;
}
.lead__alt a { color: var(--accent-soft); }
@media (max-width: 620px) {
  .lead__row { grid-template-columns: 1fr; }
}

/* ---------- Footer ---------- */
.footer {
  border-top: 1px solid var(--line);
  padding-block: 48px;
  background: var(--bg-2);
}
.footer__inner {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 28px;
}
.footer__brand { max-width: 420px; }
.footer__brand p { color: var(--text-dim); font-size: 0.92rem; margin: 12px 0 0; }
.footer__meta {
  display: flex;
  flex-direction: column;
  gap: 8px;
  text-align: right;
  color: var(--text-dim);
  font-size: 0.92rem;
}
.footer__meta a { color: var(--text-mut); text-decoration: none; }
.footer__meta a:hover { color: var(--accent-soft); }
@media (max-width: 620px) {
  .footer__meta { text-align: left; }
}