/* ============================================================
   SlimDrill / Verde — landing page
   Palette: deep forest green dominant, ivory paper, warm amber accent.
   Typography: Fraunces (display, editorial serif) + Inter (body) + JetBrains Mono (numbers).
   ============================================================ */

:root {
  /* Verde palette */
  --green:        #2c5d3f;   /* signature Verde green (slightly desaturated) */
  --green-deep:   #1d3f2a;   /* darker for hover/dark blocks */
  --green-soft:   #5a8c6e;   /* mid-tone */
  --green-mist:   #e6efe9;   /* very pale wash */

  --amber:        #c8893d;   /* accent — equipment yellow toned to warm amber */
  --amber-deep:   #8c5d24;

  --paper:        #f7f5ef;   /* warm off-white (ivory paper) */
  --paper-2:      #efece2;   /* slightly deeper paper */
  --ink:          #16201a;   /* near-black with green undertone */
  --ink-2:        #2b3530;
  --gray-700:     #4a5450;
  --gray-500:     #7a847f;
  --gray-400:     #a3aca8;
  --gray-300:     #cfd4d0;
  --gray-200:     #e4e7e3;
  --gray-100:     #f0f1ed;
  --white:        #ffffff;

  --rule:         rgba(22, 32, 26, 0.12);
  --rule-strong:  rgba(22, 32, 26, 0.25);

  /* Fonts */
  --font-display: 'Fraunces', 'Times New Roman', serif;
  --font-body:    'Montserrat', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono:    'JetBrains Mono', 'SF Mono', Menlo, monospace;

  /* Spatial */
  --container:    1240px;
  --gutter:       clamp(20px, 4vw, 48px);
  --section-y:    clamp(72px, 9vw, 140px);
  --radius:       4px;
  --radius-lg:    8px;
}

html[data-lang="ru"] {
  --font-display: 'Playfair Display', 'Times New Roman', serif;
}

/* ============================ RESET ============================ */
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.55;
  font-feature-settings: 'ss01', 'cv11';
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; border: none; background: none; color: inherit; }
ul { list-style: none; }
summary { cursor: pointer; }
summary::-webkit-details-marker { display: none; }

.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

/* ============================ TYPOGRAPHY ============================ */
.kicker {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--green);
  margin-bottom: 14px;
  display: inline-block;
}
.kicker::before {
  content: "—  ";
  color: var(--green);
}
.kicker--light { color: var(--green-mist); }
.kicker--light::before { color: var(--green-mist); }

h1, h2, h3 {
  font-family: var(--font-display);
  font-weight: 500;
  font-style: normal;
  letter-spacing: -0.015em;
  line-height: 1.05;
  font-variation-settings: 'opsz' 144;
}
h2 { font-size: clamp(32px, 4.4vw, 56px); }
h3 { font-size: clamp(20px, 1.8vw, 24px); line-height: 1.2; }
.lead { font-size: clamp(17px, 1.4vw, 19px); color: var(--gray-700); max-width: 64ch; }

/* ============================ NAV ============================ */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(247, 245, 239, 0.85);
  backdrop-filter: blur(14px) saturate(140%);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  border-bottom: 1px solid var(--rule);
}
.nav__inner {
  display: flex;
  align-items: center;
  gap: 32px;
  height: 70px;
}
.nav__logo {
  display: flex;
  align-items: center;
  color: var(--ink);
}
.nav__logo-img {
  height: 32px;
  width: auto;
  display: block;
}
.nav__links {
  display: flex;
  align-items: center;
  gap: 28px;
  margin-left: auto;
  font-size: 14px;
  color: var(--gray-700);
  font-weight: 500;
}
.nav__links a:not(.nav__cta) {
  position: relative;
  transition: color 0.2s;
}
.nav__links a:not(.nav__cta):hover { color: var(--ink); }
.nav__links a:not(.nav__cta)::after {
  content: ""; position: absolute; left: 0; bottom: -6px; height: 1px; width: 0;
  background: var(--green); transition: width 0.25s ease;
}
.nav__links a:not(.nav__cta):hover::after { width: 100%; }
.nav__links a:not(.nav__cta).is-active { color: var(--ink); font-weight: 600; }
.nav__links a:not(.nav__cta).is-active::after { width: 100%; background: var(--green); }
.nav__cta {
  background: var(--green);
  color: var(--white) !important;
  padding: 9px 18px;
  border-radius: 999px;
  font-weight: 500;
  transition: background 0.2s;
}
.nav__cta:hover { background: var(--green-deep); }
.nav__cta.is-active { background: var(--green-deep); }

.lang-switch {
  display: flex;
  align-items: center;
  gap: 4px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  color: var(--gray-500);
  border: 1px solid var(--rule);
  border-radius: 999px;
  padding: 5px 11px;
  letter-spacing: 0.05em;
}
.lang-switch__option {
  transition: color 0.15s;
  padding: 0 2px;
}
.lang-switch__option.active { color: var(--green); font-weight: 600; }
.lang-switch__divider { color: var(--rule); }
.lang-switch:hover { border-color: var(--rule-strong); }

.nav__menu-btn {
  display: none;
  flex-direction: column;
  gap: 4px;
  padding: 6px;
}
.nav__menu-btn span {
  width: 22px; height: 1.5px; background: var(--ink); border-radius: 2px;
  transition: transform 0.25s;
}

/* ============================ BANNER CAROUSEL ============================ */
/* Baseline desktop banners: 1600x685 (aspect ~2.336:1)
   Baseline mobile  banners: 941x1672 (aspect ~0.563:1)
   We size the track using aspect-ratio so the full image is always visible,
   without cropping any edges. A sensible max-height keeps very wide screens
   from showing an oversized hero strip. */
.banners {
  position: relative;
  background: var(--paper);
  overflow: hidden;
  border-bottom: 1px solid var(--rule);
}
.banners__track {
  display: flex;
  transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
  will-change: transform;
  /* Match the desktop banner aspect ratio so the entire image is visible. */
  aspect-ratio: 1600 / 685;
  max-height: 760px;
  width: 100%;
}
.banner {
  flex: 0 0 100%;
  position: relative;
  overflow: hidden;
  cursor: pointer;
  height: 100%;
  background: var(--paper);
}
.banner picture {
  display: block;
  width: 100%;
  height: 100%;
}
.banner img {
  width: 100%;
  height: 100%;
  /* `contain` ensures the full banner artwork is visible — no important
     content (logo, stats, illustration) gets cropped on any viewport. */
  object-fit: contain;
  object-position: center;
  display: block;
}

@media (max-width: 760px) {
  .banners__track {
    /* Switch to the mobile (portrait) banner aspect ratio. */
    aspect-ratio: 941 / 1672;
    max-height: none;
  }
}

/* Controls — placed BELOW the banner image so they never overlap the
   important bottom-row content (e.g. savings metrics, "View results" CTA). */
.banners__controls {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 14px;
  padding: 14px 0 18px;
  background: var(--paper);
  z-index: 2;
}
.banners__arrow {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.7);
  border: 1px solid rgba(22, 32, 26, 0.12);
  color: var(--ink);
  font-size: 18px;
  font-family: var(--font-display);
  font-weight: 500;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.2s, transform 0.15s;
  backdrop-filter: blur(6px);
  line-height: 1;
}
.banners__arrow:hover {
  background: rgba(255, 255, 255, 0.95);
  transform: scale(1.05);
}
.banners__arrow:active { transform: scale(0.95); }
.banners__arrow--prev { padding-right: 2px; }
.banners__arrow--next { padding-left: 2px; }

.banners__dots {
  display: flex;
  align-items: center;
  gap: 6px;
}
.banners__dot {
  width: 24px;
  height: 3px;
  border-radius: 2px;
  background: rgba(22, 32, 26, 0.18);
  border: none;
  cursor: pointer;
  transition: background 0.25s, width 0.25s;
  padding: 0;
  position: relative;
  overflow: hidden;
}
.banners__dot:hover { background: rgba(22, 32, 26, 0.32); }
.banners__dot.is-active {
  width: 48px;
  background: rgba(22, 32, 26, 0.18);
}
.banners__dot.is-active::after {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  background: var(--green);
  width: 0%;
  animation: bannerProgress 6s linear forwards;
}
.banners__dot.is-active.is-paused::after {
  animation-play-state: paused;
}
@keyframes bannerProgress {
  to { width: 100%; }
}

@media (max-width: 640px) {
  .banners__controls { bottom: 12px; gap: 10px; }
  .banners__arrow { width: 30px; height: 30px; font-size: 15px; }
  .banners__dot { width: 18px; height: 2.5px; }
  .banners__dot.is-active { width: 36px; }
}


.hero {
  position: relative;
  min-height: 70vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  padding: 80px 0 60px;
}
.hero__bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 0;
}
.hero__bg img {
  position: absolute;
  right: -8%;
  top: 50%;
  transform: translateY(-50%);
  height: 110%;
  width: auto;
  max-width: 50%;
  object-fit: cover;
  filter: saturate(0.92) contrast(1.05);
  -webkit-mask-image: linear-gradient(110deg, transparent 0%, transparent 25%, #000 45%, #000 100%);
  mask-image: linear-gradient(110deg, transparent 0%, transparent 25%, #000 45%, #000 100%);
}
.hero__bg-overlay {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(1200px 700px at 0% 50%, rgba(247,245,239,1) 0%, rgba(247,245,239,0.85) 35%, rgba(247,245,239,0) 70%),
    linear-gradient(180deg, rgba(247,245,239,0.7) 0%, transparent 30%);
}
.hero__inner {
  position: relative;
  z-index: 1;
  max-width: 760px;
}
.hero__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--green);
  background: var(--green-mist);
  border: 1px solid rgba(44, 93, 63, 0.18);
  padding: 7px 14px;
  border-radius: 999px;
  margin-bottom: 28px;
}
.hero__eyebrow .dot {
  width: 7px; height: 7px; border-radius: 50%; background: var(--green);
  box-shadow: 0 0 0 0 rgba(44, 93, 63, 0.6);
  animation: pulse 2.4s infinite;
}
@keyframes pulse {
  0%   { box-shadow: 0 0 0 0 rgba(44, 93, 63, 0.5); }
  70%  { box-shadow: 0 0 0 10px rgba(44, 93, 63, 0); }
  100% { box-shadow: 0 0 0 0 rgba(44, 93, 63, 0); }
}

.hero__title {
  font-family: var(--font-display);
  font-size: clamp(42px, 6.2vw, 86px);
  line-height: 0.98;
  letter-spacing: -0.025em;
  margin-bottom: 28px;
  font-weight: 400;
  font-variation-settings: 'opsz' 144;
}
.hero__title-1 { display: block; color: var(--ink); }
.hero__title-2 { display: block; color: var(--green-deep); font-style: italic; font-weight: 500; }
.hero__title-3 { display: block; color: var(--green); font-style: italic; font-weight: 500; }

.hero__lead {
  font-size: clamp(17px, 1.4vw, 19px);
  color: var(--gray-700);
  max-width: 600px;
  margin-bottom: 44px;
}

.hero__metrics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 40px;
  max-width: 640px;
  border-top: 1px solid var(--rule);
  padding-top: 28px;
}
.metric__value {
  font-family: var(--font-display);
  font-size: clamp(32px, 3.6vw, 44px);
  font-weight: 500;
  color: var(--green-deep);
  line-height: 1;
}
.metric__unit {
  font-family: var(--font-mono);
  font-size: 0.5em;
  font-weight: 500;
  color: var(--gray-500);
  margin-left: 3px;
  vertical-align: 0.6em;
}
.metric__label {
  font-size: 12.5px;
  color: var(--gray-700);
  margin-top: 8px;
  line-height: 1.35;
  max-width: 24ch;
}

.hero__cta {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 26px;
  border-radius: 999px;
  font-size: 14.5px;
  font-weight: 500;
  letter-spacing: 0.01em;
  transition: all 0.2s;
  cursor: pointer;
  font-family: var(--font-body);
}
.btn--primary {
  background: var(--green);
  color: var(--white);
}
.btn--primary:hover {
  background: var(--green-deep);
  transform: translateY(-1px);
}
.btn--ghost {
  background: transparent;
  color: var(--ink);
  border: 1px solid var(--rule-strong);
}
.btn--ghost:hover {
  background: var(--ink);
  color: var(--paper);
  border-color: var(--ink);
}
.btn--block {
  width: 100%;
  padding: 16px 26px;
}

/* ============================ SECTIONS ============================ */
.section { padding: var(--section-y) 0; }
.section--solution { background: var(--white); border-top: 1px solid var(--rule); border-bottom: 1px solid var(--rule); }
.section--products { background: var(--paper); }
.section--results { background: var(--paper-2); }
.section--tech { background: var(--white); }
.section--roadmap { background: var(--paper); border-top: 1px solid var(--rule); }

.section__head {
  display: flex;
  align-items: flex-start;
  gap: 32px;
  margin-bottom: 56px;
  max-width: 920px;
}
.section__num {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 500;
  color: var(--green);
  letter-spacing: 0.05em;
  flex-shrink: 0;
  padding-top: 10px;
  position: relative;
}
.section__num::after {
  content: "";
  display: block;
  width: 40px;
  height: 1px;
  background: var(--green);
  margin-top: 10px;
}
.section__head-text { flex: 1; }
.section__title {
  font-size: clamp(30px, 4vw, 52px);
  max-width: 18ch;
  color: var(--ink);
}
.section__lead {
  font-size: clamp(16px, 1.3vw, 18px);
  color: var(--gray-700);
  max-width: 60ch;
  margin-bottom: 48px;
}
.section__head--light .kicker { color: var(--amber); }
.section__head--light .section__num { color: var(--amber); }
.section__head--light .section__num::after { background: var(--amber); }
.section__head--light .section__title { color: var(--paper); }
.section__lead--light { color: var(--gray-300); }

/* ============================ PROBLEM SECTION ============================ */
.problem-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  border: 1px solid var(--rule);
  background: var(--white);
}
.problem-card {
  padding: 36px 32px;
  border-right: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
}
.problem-card:nth-child(4) { border-right: none; }
.problem-card--wide {
  grid-column: span 4;
  border-bottom: none;
  border-right: none;
  background-color: var(--ink);
  background-image:
    linear-gradient(100deg, rgba(22,32,26,0.96) 0%, rgba(22,32,26,0.94) 65%, rgba(22,32,26,0.72) 100%),
    url("images/transport.jpg");
  background-size: cover;
  background-position: center right;
  background-repeat: no-repeat;
  color: var(--paper);
  position: relative;
  min-height: 220px;
}
.problem-card__icon {
  font-size: 26px;
  color: var(--green);
  margin-bottom: 24px;
  display: block;
  font-weight: 400;
}
.problem-card h3 {
  font-family: var(--font-display);
  font-weight: 500;
  margin-bottom: 12px;
  color: var(--ink);
}
.problem-card--wide h3 { color: var(--paper); }
.problem-card--wide p { color: var(--gray-300); }
.problem-card--wide .problem-card__icon { color: var(--amber); }
@media (max-width: 760px) {
  .problem-card--wide {
    /* On narrow screens the right-side gradient would reveal too much of the
       photo behind the copy. Darken the whole card uniformly so the body
       text remains legible while the photo still shows through subtly. */
    background-image:
      linear-gradient(180deg, rgba(22,32,26,0.94) 0%, rgba(22,32,26,0.88) 100%),
      url("images/transport.jpg");
    background-position: center;
  }
}
.problem-card p {
  font-size: 14.5px;
  color: var(--gray-700);
  line-height: 1.5;
}

/* ============================ SOLUTION SECTION ============================ */
.solution-layout {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 80px;
  align-items: start;
}
.solution-copy .lead { margin-bottom: 36px; }
.solution-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px 32px;
}
.solution-list li {
  position: relative;
  padding-left: 22px;
  font-size: 15px;
  color: var(--gray-700);
  line-height: 1.4;
}
.solution-list li::before {
  content: "›";
  position: absolute;
  left: 0;
  top: 0;
  color: var(--green);
  font-weight: 700;
}
.solution-list strong { color: var(--ink); font-weight: 600; }

.solution-comparison {
  background: var(--paper-2);
  padding: 40px 36px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--rule);
}
.comparison__title {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 500;
  margin-bottom: 32px;
  color: var(--ink);
  line-height: 1.3;
}
.comparison__chart {
  display: flex;
  align-items: flex-end;
  gap: 40px;
  justify-content: space-around;
  height: 240px;
  margin-bottom: 28px;
}
.rig { display: flex; flex-direction: column; align-items: center; gap: 12px; flex: 1; }
.rig__bar {
  width: 60%;
  height: var(--height);
  position: relative;
  border-radius: 3px 3px 0 0;
  background: linear-gradient(180deg, var(--gray-400) 0%, var(--gray-500) 100%);
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding-top: 8px;
  min-height: 60px;
  transition: transform 0.4s;
}
.rig--slim .rig__bar {
  background: linear-gradient(180deg, var(--green-soft) 0%, var(--green) 100%);
}
.rig__height {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  color: var(--white);
  letter-spacing: 0.04em;
}
.rig__label {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  text-align: center;
}
.rig__name {
  font-size: 13px;
  font-weight: 600;
  color: var(--ink);
}
.rig__sub {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--gray-500);
}
.comparison__caption {
  font-size: 13px;
  color: var(--gray-700);
  line-height: 1.5;
  border-top: 1px solid var(--rule);
  padding-top: 18px;
}

/* ============================ DARK SECTION (origins) ============================ */
.section--dark {
  background: var(--ink);
  color: var(--paper);
  position: relative;
  overflow: hidden;
}
.section--dark::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle at 20% 0%, rgba(44,93,63,0.18) 0%, transparent 50%),
    radial-gradient(circle at 90% 100%, rgba(200,137,61,0.08) 0%, transparent 50%);
  pointer-events: none;
}
.section--dark .container { position: relative; z-index: 1; }

.disclosure {
  border-top: 1px solid rgba(247,245,239,0.18);
  border-bottom: 1px solid rgba(247,245,239,0.18);
  margin-top: 32px;
}
.disclosure__summary {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 28px 0;
  font-size: 16px;
  color: var(--paper);
  font-weight: 500;
  list-style: none;
  transition: color 0.2s;
}
.disclosure__summary:hover { color: var(--amber); }
.disclosure__icon {
  font-family: var(--font-mono);
  font-size: 24px;
  color: var(--amber);
  font-weight: 300;
  transition: transform 0.3s;
}
.disclosure[open] .disclosure__icon { transform: rotate(45deg); }
.disclosure__body { padding: 8px 0 48px; }

.origins-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
}
.origins-col h4 {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-weight: 500;
  color: var(--amber);
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: 1px solid rgba(200,137,61,0.3);
}
.origins-col ul li {
  padding: 10px 0;
  font-size: 14.5px;
  line-height: 1.5;
  color: var(--gray-300);
  border-bottom: 1px dashed rgba(247,245,239,0.08);
}
.origins-col ul li:last-child { border-bottom: none; }
.origins-col b { color: var(--paper); font-weight: 600; }

/* Origins photo gallery — between the lead and the engineering log */
.origins-gallery {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  margin: 48px 0 56px;
}
.origins-gallery__item {
  margin: 0;
  border: 1px solid rgba(247,245,239,0.10);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: rgba(247,245,239,0.04);
}
.origins-gallery__item img {
  display: block;
  width: 100%;
  height: 220px;
  object-fit: cover;
  filter: saturate(0.95) brightness(0.95);
  transition: transform 0.6s ease, filter 0.4s ease;
}
.origins-gallery__item:hover img {
  transform: scale(1.03);
  filter: saturate(1.05) brightness(1);
}
.origins-gallery__item figcaption {
  padding: 14px 18px 16px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--gray-400, var(--gray-300));
  line-height: 1.5;
}
@media (max-width: 880px) {
  .origins-gallery {
    grid-template-columns: 1fr;
    gap: 14px;
    margin: 36px 0 40px;
  }
  .origins-gallery__item img { height: 200px; }
}

/* ============================ PRODUCTS ============================ */
.products-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.product {
  background: var(--white);
  border: 1px solid var(--rule);
  padding: 32px 28px;
  border-radius: var(--radius-lg);
  display: flex;
  flex-direction: column;
  position: relative;
  transition: transform 0.25s, box-shadow 0.25s;
}
.product:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 30px -12px rgba(22,32,26,0.18);
}
.product--featured {
  border-color: var(--green);
  background: linear-gradient(180deg, var(--white) 0%, var(--green-mist) 100%);
}
.product--retired { opacity: 0.65; }
.product--planned { border-style: dashed; }

.product__header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 28px;
  gap: 12px;
  flex-wrap: wrap;
}
.product__name {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 500;
  color: var(--ink);
}
.product__version {
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 500;
  color: var(--green);
  margin-left: 4px;
}
.product__status {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--gray-500);
  padding: 4px 10px;
  border-radius: 999px;
  background: var(--gray-100);
  border: 1px solid var(--rule);
}
.product__status--active {
  color: var(--green);
  background: var(--green-mist);
  border-color: rgba(44,93,63,0.2);
}
.product__depth {
  display: flex;
  align-items: baseline;
  gap: 8px;
  margin-bottom: 16px;
}
.product__depth-num {
  font-family: var(--font-display);
  font-size: 64px;
  font-weight: 500;
  color: var(--green-deep);
  line-height: 0.9;
}
.product__depth-unit {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--gray-500);
}
.product__desc {
  font-size: 14.5px;
  color: var(--gray-700);
  line-height: 1.5;
  margin-bottom: 18px;
}
.product__more {
  margin-top: auto;
  border-top: 1px solid var(--rule);
  padding-top: 16px;
}
.product__more summary {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--green);
  font-weight: 500;
  list-style: none;
  position: relative;
  padding-right: 18px;
  display: inline-block;
}
.product__more summary::after {
  content: "+";
  position: absolute;
  right: 0;
  top: -2px;
  font-size: 16px;
  font-weight: 400;
  transition: transform 0.25s;
}
.product__more[open] summary::after { transform: rotate(45deg); }
.product__more ul {
  margin-top: 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.product__more li {
  font-size: 13.5px;
  color: var(--gray-700);
  padding-left: 14px;
  position: relative;
  line-height: 1.45;
}
.product__more li::before {
  content: "·";
  position: absolute;
  left: 0;
  color: var(--green);
  font-weight: 700;
}

/* ============================ RESULTS ============================ */
.results-headline {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  margin-bottom: 80px;
  border-top: 2px solid var(--ink);
  border-bottom: 2px solid var(--ink);
}
.big-stat {
  padding: 44px 32px;
  border-right: 1px solid var(--rule-strong);
}
.big-stat:last-child { border-right: none; }
.big-stat__num {
  font-family: var(--font-display);
  font-size: clamp(56px, 7vw, 92px);
  font-weight: 500;
  color: var(--green-deep);
  line-height: 1;
  letter-spacing: -0.03em;
  margin-bottom: 16px;
}
.big-stat__num .pct {
  font-size: 0.55em;
  color: var(--green);
  vertical-align: 0.35em;
  margin-left: 2px;
}
.big-stat__label {
  font-size: 14px;
  color: var(--gray-700);
  line-height: 1.4;
  max-width: 28ch;
}

.case {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: stretch;
  margin-bottom: 64px;
}
.case__media {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  min-height: 420px;
}
.case__media img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.9);
}
.case__media-caption {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 16px 20px;
  background: linear-gradient(0deg, rgba(22,32,26,0.85) 0%, rgba(22,32,26,0) 100%);
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.05em;
  color: var(--paper);
}
.case__title {
  font-family: var(--font-display);
  font-size: clamp(22px, 2.4vw, 32px);
  font-weight: 500;
  margin: 12px 0 28px;
  color: var(--ink);
  line-height: 1.18;
}
.case__list { display: flex; flex-direction: column; gap: 14px; }
.case__list li {
  position: relative;
  padding-left: 28px;
  font-size: 15px;
  color: var(--gray-700);
  line-height: 1.5;
}
.case__list li::before {
  content: "✓";
  position: absolute;
  left: 0;
  top: 0;
  color: var(--green);
  font-weight: 700;
}

.program-summary {
  background: var(--ink);
  color: var(--paper);
  padding: 48px;
  border-radius: var(--radius-lg);
}
.program-summary__title {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--amber);
  margin-bottom: 28px;
}
.program-summary__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  margin-bottom: 24px;
}
.program-summary__grid > div {
  display: flex;
  flex-direction: column;
  gap: 6px;
  border-left: 1px solid rgba(247,245,239,0.15);
  padding-left: 20px;
}
.program-summary__grid b {
  font-family: var(--font-display);
  font-size: clamp(28px, 3vw, 40px);
  font-weight: 500;
  color: var(--paper);
}
.program-summary__grid span {
  font-size: 13px;
  color: var(--gray-300);
}
.program-summary__note {
  font-size: 13px;
  color: var(--gray-400);
  font-style: italic;
}

/* ============================ TECH GRID ============================ */
.tech-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0;
  border-top: 1px solid var(--rule);
}
.tech-card {
  border-bottom: 1px solid var(--rule);
  border-right: 1px solid var(--rule);
}
.tech-card:nth-child(2n) { border-right: none; }
.tech-card summary {
  display: flex;
  align-items: center;
  gap: 18px;
  padding: 24px 28px;
  list-style: none;
  transition: background 0.2s;
}
.tech-card summary:hover { background: var(--gray-100); }
.tech-card[open] summary { background: var(--green-mist); }
.tech-card__num {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  color: var(--green);
  width: 24px;
  flex-shrink: 0;
}
.tech-card__title {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 500;
  color: var(--ink);
  flex: 1;
}
.tech-card__chev {
  font-family: var(--font-mono);
  font-size: 18px;
  color: var(--green);
  font-weight: 300;
  transition: transform 0.25s;
}
.tech-card[open] .tech-card__chev { transform: rotate(45deg); }
.tech-card__body {
  padding: 4px 28px 32px 70px;
  font-size: 14.5px;
  color: var(--gray-700);
  line-height: 1.55;
}
.tech-card__body p { margin-bottom: 12px; }
.tech-card__body h5 {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--green);
  font-weight: 500;
  margin: 20px 0 12px;
}
.tech-card__body ul {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.tech-card__body ul li {
  padding-left: 16px;
  position: relative;
}
.tech-card__body ul li::before {
  content: "›";
  position: absolute;
  left: 0;
  color: var(--green);
}
.tech-card__body b { color: var(--ink); font-weight: 600; }

.param-table {
  margin-top: 16px;
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--paper);
}
.param-row {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  border-bottom: 1px solid var(--rule);
}
.param-row:last-child { border-bottom: none; }
.param-row > div {
  padding: 10px 14px;
  font-size: 13px;
  border-right: 1px solid var(--rule);
  font-family: var(--font-mono);
}
.param-row > div:last-child { border-right: none; }
.param-row--header > div {
  background: var(--ink);
  color: var(--paper);
  font-weight: 600;
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

/* ============================ ROADMAP ============================ */
.roadmap {
  position: relative;
  padding: 24px 0 48px;
}
.roadmap__years {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--gray-500);
  border-bottom: 1px solid var(--rule);
  padding-bottom: 12px;
  margin-bottom: 24px;
  margin-left: 80px;
}
.roadmap__rows { display: flex; flex-direction: column; gap: 14px; }
.roadmap__row {
  display: grid;
  grid-template-columns: 80px 1fr;
  align-items: center;
  gap: 0;
}
.roadmap__label {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 600;
  color: var(--ink);
}
.roadmap__bar {
  position: relative;
  height: 36px;
  background: var(--gray-100);
  border-radius: 4px;
  overflow: hidden;
}
.roadmap__bar::before {
  content: "";
  position: absolute;
  left: var(--start);
  width: calc(var(--end) - var(--start));
  top: 0;
  bottom: 0;
  background: var(--color);
  border-radius: 4px;
}
.roadmap__bar--planned::before {
  background-image: repeating-linear-gradient(45deg, var(--color) 0, var(--color) 6px, rgba(255,255,255,0.3) 6px, rgba(255,255,255,0.3) 12px);
}
.roadmap__bar span {
  position: absolute;
  left: calc(var(--start) + 12px);
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: var(--white);
  font-weight: 500;
  letter-spacing: 0.03em;
  white-space: nowrap;
  z-index: 1;
}
.roadmap__now {
  position: absolute;
  bottom: 0;
  left: calc(80px + 70%);
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--amber);
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.roadmap__now::before {
  content: "▲";
  display: block;
  text-align: center;
  margin-bottom: 4px;
}

/* ============================ CONTACT ============================ */
.section--contact {
  background: linear-gradient(135deg, var(--green-deep) 0%, var(--ink) 100%);
  color: var(--paper);
  position: relative;
  overflow: hidden;
}
.section--contact::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle at 80% 20%, rgba(200,137,61,0.15) 0%, transparent 40%),
    radial-gradient(circle at 0% 100%, rgba(90,140,110,0.2) 0%, transparent 50%);
  pointer-events: none;
}
.contact-card {
  position: relative;
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 80px;
  align-items: center;
  z-index: 1;
}
.contact-card__title {
  font-family: var(--font-display);
  font-size: clamp(28px, 3.6vw, 44px);
  font-weight: 500;
  color: var(--paper);
  margin-bottom: 20px;
  line-height: 1.1;
}
.contact-card__lead {
  font-size: clamp(15px, 1.3vw, 17px);
  color: var(--gray-300);
  max-width: 50ch;
  line-height: 1.5;
}

.contact-form {
  background: var(--paper);
  padding: 36px 32px;
  border-radius: var(--radius-lg);
  display: flex;
  flex-direction: column;
  gap: 18px;
  color: var(--ink);
}
.contact-form--wide {
  width: 100%;
  max-width: 760px;
}
.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px 18px;
  margin-bottom: 4px;
  align-items: end;
}
.field {
  display: flex;
  flex-direction: column;
  gap: 8px;
  justify-content: flex-end;
  align-self: stretch;
}
.field--full { grid-column: 1 / -1; }
.field--checks { gap: 12px; border: none; padding: 0; margin: 0; }
.field__label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-weight: 500;
  color: var(--green-deep);
  padding: 0;
  min-height: 28px;
  display: flex;
  align-items: flex-end;
  line-height: 1.3;
}
.field input {
  font-family: var(--font-body);
  font-size: 15px;
  padding: 11px 13px;
  border: 1px solid var(--rule-strong);
  border-radius: var(--radius);
  background: var(--white);
  color: var(--ink);
  transition: border-color 0.2s, box-shadow 0.2s;
}
.field input:focus {
  outline: none;
  border-color: var(--green);
  box-shadow: 0 0 0 3px rgba(44,93,63,0.15);
}
.field input.is-ok {
  border-color: var(--green);
}
.field input.is-ok:focus {
  box-shadow: 0 0 0 3px rgba(44,93,63,0.18);
}
.field input.is-error {
  border-color: #c84a4a;
}
.field input.is-error:focus {
  box-shadow: 0 0 0 3px rgba(200,74,74,0.18);
}

.checkboxes {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 16px;
  margin-top: 4px;
}
.checkbox {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  font-size: 14px;
  color: var(--ink);
  user-select: none;
}
.checkbox input[type="checkbox"] {
  appearance: none;
  -webkit-appearance: none;
  width: 18px;
  height: 18px;
  border: 1.5px solid var(--rule-strong);
  border-radius: 3px;
  cursor: pointer;
  position: relative;
  background: var(--white);
  transition: border-color 0.15s, background 0.15s;
  flex-shrink: 0;
}
.checkbox input[type="checkbox"]:hover {
  border-color: var(--green);
}
.checkbox input[type="checkbox"]:checked {
  background: var(--green);
  border-color: var(--green);
}
.checkbox input[type="checkbox"]:checked::after {
  content: "";
  position: absolute;
  left: 5px;
  top: 1.5px;
  width: 5px;
  height: 10px;
  border: solid var(--white);
  border-width: 0 2px 2px 0;
  transform: rotate(45deg);
}
.contact-form__hint {
  font-size: 12px;
  color: var(--gray-500);
  line-height: 1.4;
  text-align: center;
}
.contact-form__success {
  display: none;
  background: var(--green-mist);
  color: var(--green-deep);
  padding: 16px 20px;
  border-radius: var(--radius);
  font-size: 14px;
  border-left: 3px solid var(--green);
}
.contact-form.is-submitted .contact-form__success { display: block; }
.contact-form.is-submitted .form-grid,
.contact-form.is-submitted button[type="submit"],
.contact-form.is-submitted .contact-form__hint { display: none; }

/* Vertical contact card layout */
.contact-card--vertical {
  grid-template-columns: 1fr !important;
  text-align: center;
  gap: 40px !important;
}
.contact-card--vertical .contact-card__copy {
  max-width: 640px;
  margin: 0 auto;
}
.contact-card--vertical .contact-card__lead {
  margin-left: auto;
  margin-right: auto;
}
.contact-card--vertical .contact-form--wide {
  margin: 0 auto;
}

/* ============================ FOOTER ============================ */
.footer {
  background: var(--ink);
  color: var(--gray-300);
  padding: 36px 0;
}
.footer__inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
}
.footer__brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 700;
  color: var(--paper);
}
.footer__brand .nav__logo-img {
  height: 26px;
  filter: brightness(1.1);
}
.footer__copy {
  font-size: 12.5px;
  color: var(--gray-400);
}
.footer__nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 22px;
  font-size: 13px;
}
.footer__nav a {
  color: var(--gray-300);
  transition: color 0.2s;
}
.footer__nav a:hover { color: var(--paper); }

/* ============================ PAGE-TO-PAGE CTA STRIP ============================ */
.page-cta {
  background: var(--green-deep, #1d4630);
  color: var(--paper);
}
.page-cta__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  padding: 56px 0;
  flex-wrap: wrap;
}
.page-cta__title {
  font-family: var(--font-display);
  font-size: clamp(22px, 3vw, 30px);
  font-weight: 600;
  color: var(--paper);
  margin: 0 0 8px;
  line-height: 1.15;
}
.page-cta__lead {
  font-size: 15px;
  color: var(--gray-200, #d6ded8);
  margin: 0;
  max-width: 560px;
  line-height: 1.55;
}
.page-cta__text { flex: 1 1 360px; }
.page-cta .btn { flex: 0 0 auto; white-space: nowrap; }
@media (max-width: 680px) {
  .page-cta__inner { padding: 40px 0; gap: 22px; }
  .page-cta .btn { width: 100%; text-align: center; }
}

/* ============================ SCROLL PROGRESS ============================ */
.nav__progress {
  position: absolute;
  left: 0;
  bottom: 0;
  height: 2px;
  width: 0%;
  background: linear-gradient(90deg, var(--green) 0%, var(--amber) 100%);
  transition: width 0.05s linear;
  z-index: 1;
}

/* ============================ WIDGETS SECTION ============================ */
.section--widgets {
  background: var(--paper);
  position: relative;
}
.section--widgets::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle at 15% 10%, rgba(44,93,63,0.04) 0%, transparent 40%),
    radial-gradient(circle at 90% 80%, rgba(200,137,61,0.04) 0%, transparent 40%);
  pointer-events: none;
}
.section--widgets .container { position: relative; z-index: 1; }

/* Tabs */
.widget-tabs {
  display: flex;
  gap: 4px;
  margin-bottom: 32px;
  padding: 6px;
  background: var(--white);
  border: 1px solid var(--rule);
  border-radius: 999px;
  width: fit-content;
  max-width: 100%;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}
.widget-tabs::-webkit-scrollbar { display: none; }
.widget-tab {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 22px;
  border-radius: 999px;
  font-family: var(--font-body);
  font-size: 13.5px;
  font-weight: 500;
  color: var(--gray-700);
  white-space: nowrap;
  transition: all 0.2s;
  position: relative;
}
.widget-tab:hover { color: var(--ink); }
.widget-tab.is-active {
  background: var(--ink);
  color: var(--paper);
}
.widget-tab__num {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.05em;
  opacity: 0.7;
}
.widget-tab.is-active .widget-tab__num {
  color: var(--amber);
  opacity: 1;
}

.widget-panels {
  position: relative;
}
.widget-panel {
  display: none;
  animation: fadeIn 0.4s ease;
}
.widget-panel.is-active { display: block; }
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ============================ CALCULATOR ============================ */
.calc {
  display: grid;
  grid-template-columns: 0.95fr 1.05fr;
  gap: 0;
  background: var(--white);
  border: 1px solid var(--rule);
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.calc__inputs {
  padding: 40px 36px;
  background: var(--paper);
  border-right: 1px solid var(--rule);
}
.calc__inputs-head h3 {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 500;
  margin-bottom: 8px;
}
.calc__inputs-head p {
  font-size: 13px;
  color: var(--gray-700);
  line-height: 1.45;
  margin-bottom: 32px;
}

.calc-field { margin-bottom: 28px; }
.calc-field__head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 12px;
}
.calc-field__label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--green-deep);
  font-weight: 500;
}
.calc-field__value {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 500;
  color: var(--ink);
  line-height: 1;
}
.calc-field__value .calc-unit {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--gray-500);
  margin-left: 2px;
  letter-spacing: 0.05em;
}
.calc-field__minmax {
  display: flex;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 10.5px;
  color: var(--gray-500);
  margin-top: 6px;
  letter-spacing: 0.04em;
}

.calc-slider {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 4px;
  background: var(--gray-200);
  border-radius: 2px;
  outline: none;
  cursor: pointer;
}
.calc-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 22px;
  height: 22px;
  background: var(--paper);
  border: 2px solid var(--green);
  border-radius: 50%;
  cursor: pointer;
  transition: transform 0.15s, box-shadow 0.15s;
  box-shadow: 0 2px 6px rgba(22,32,26,0.12);
}
.calc-slider::-webkit-slider-thumb:hover {
  transform: scale(1.1);
  box-shadow: 0 0 0 6px rgba(44,93,63,0.12);
}
.calc-slider::-moz-range-thumb {
  width: 22px;
  height: 22px;
  background: var(--paper);
  border: 2px solid var(--green);
  border-radius: 50%;
  cursor: pointer;
  box-shadow: 0 2px 6px rgba(22,32,26,0.12);
}

.calc-region {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.calc-region__btn {
  padding: 8px 14px;
  background: var(--white);
  border: 1px solid var(--rule);
  border-radius: 999px;
  font-size: 12.5px;
  font-weight: 500;
  color: var(--gray-700);
  transition: all 0.15s;
  font-family: var(--font-body);
}
.calc-region__btn:hover {
  border-color: var(--green);
  color: var(--green-deep);
}
.calc-region__btn.is-active {
  background: var(--green);
  border-color: var(--green);
  color: var(--white);
}

/* Calculator output */
.calc__output {
  padding: 40px 36px;
  background: var(--white);
}
.calc-bars {
  display: flex;
  flex-direction: column;
  gap: 24px;
  margin-bottom: 32px;
}
.calc-bar__head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 8px;
}
.calc-bar__name {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-weight: 500;
  color: var(--gray-700);
}
.calc-bar--slim .calc-bar__name { color: var(--green); }
.calc-bar__total {
  font-family: var(--font-display);
  font-size: 26px;
  font-weight: 500;
  color: var(--ink);
  letter-spacing: -0.01em;
}
.calc-bar--slim .calc-bar__total { color: var(--green-deep); }

.calc-bar__track {
  height: 14px;
  background: var(--gray-100);
  border-radius: 4px;
  overflow: hidden;
  margin-bottom: 10px;
}
.calc-bar__fill {
  height: 100%;
  border-radius: 4px;
  transition: width 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}
.calc-bar--conv .calc-bar__fill {
  background: linear-gradient(90deg, var(--gray-500), var(--ink-2));
}
.calc-bar--slim .calc-bar__fill {
  background: linear-gradient(90deg, var(--green-soft), var(--green));
}

.calc-bar__breakdown {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: var(--gray-500);
  letter-spacing: 0.02em;
}
.calc-bar__breakdown b {
  color: var(--ink);
  font-weight: 600;
}

.calc-savings {
  background: linear-gradient(135deg, var(--green-deep) 0%, var(--ink) 100%);
  color: var(--paper);
  padding: 28px 32px;
  border-radius: var(--radius-lg);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
  margin-bottom: 24px;
  position: relative;
  overflow: hidden;
}
.calc-savings::before {
  content: "";
  position: absolute;
  top: -50%;
  right: -10%;
  width: 60%;
  height: 200%;
  background: radial-gradient(ellipse, rgba(200,137,61,0.18) 0%, transparent 60%);
}
.calc-savings__label {
  display: block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--amber);
  margin-bottom: 6px;
  position: relative;
  z-index: 1;
}
.calc-savings__value {
  display: block;
  font-family: var(--font-display);
  font-size: clamp(36px, 4vw, 48px);
  font-weight: 500;
  color: var(--paper);
  letter-spacing: -0.02em;
  line-height: 1;
  position: relative;
  z-index: 1;
}
.calc-savings__pct {
  text-align: right;
  position: relative;
  z-index: 1;
}
.calc-savings__pctnum {
  display: block;
  font-family: var(--font-display);
  font-size: clamp(40px, 5vw, 60px);
  font-weight: 500;
  color: var(--amber);
  line-height: 0.95;
  letter-spacing: -0.02em;
}
.calc-savings__pctlabel {
  display: block;
  font-size: 12px;
  color: var(--gray-300);
  margin-top: 4px;
  max-width: 18ch;
  margin-left: auto;
  line-height: 1.3;
}

.calc-extras {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  border-top: 1px solid var(--rule);
  padding-top: 24px;
  margin-bottom: 20px;
}
.calc-extra {
  padding: 0 16px;
  border-right: 1px solid var(--rule);
}
.calc-extra:first-child { padding-left: 0; }
.calc-extra:last-child { border-right: none; padding-right: 0; }
.calc-extra__num {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 500;
  color: var(--green-deep);
  margin-bottom: 4px;
  letter-spacing: -0.01em;
}
.calc-extra__label {
  font-size: 12px;
  color: var(--gray-700);
  line-height: 1.3;
}

.calc-disclaimer {
  font-size: 11.5px;
  color: var(--gray-500);
  line-height: 1.5;
  font-style: italic;
}

/* ============================ COMPARISON WIDGET ============================ */
.compare {
  background: var(--white);
  border: 1px solid var(--rule);
  border-radius: var(--radius-lg);
  padding: 40px;
}
.compare__head { margin-bottom: 32px; }
.compare__head h3 {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 500;
  margin-bottom: 8px;
}
.compare__head p {
  font-size: 13.5px;
  color: var(--gray-700);
}
.compare__slider {
  max-width: 520px;
  margin: 0 auto 48px;
}
.compare__slider-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 12px;
}

.compare__viz {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  align-items: stretch;
}
.cmp-rig__diagram {
  position: relative;
  height: 300px;
  padding-top: 28px;
  background: linear-gradient(180deg, #d8e3eb 0%, #ecf0d4 60%, #c4a878 60%, #b08c5c 100%);
  overflow: visible;
}
.cmp-rig {
  display: flex;
  flex-direction: column;
  background: var(--paper);
  border-radius: var(--radius-lg);
  border: 1px solid var(--rule);
  overflow: hidden;
}
.cmp-rig__sky {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 60%;
  background: linear-gradient(180deg, rgba(216,227,235,1) 0%, rgba(236,240,212,0.5) 100%);
}
.cmp-rig__ground {
  position: absolute;
  top: 60%;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(180deg, #c4a878 0%, #8a6a40 100%);
  border-top: 1px solid rgba(22,32,26,0.2);
}
.cmp-rig__mast {
  position: absolute;
  bottom: 40%;
  left: 50%;
  transform: translateX(-50%);
  width: 36px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-end;
  transition: height 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}
.cmp-rig--slim .cmp-rig__mast {
  width: 18px;
  transform: translateX(-50%);
  transform-origin: bottom center;
}
.cmp-rig__mast-shape {
  width: 100%;
  height: 100%;
  background:
    linear-gradient(90deg, transparent 45%, var(--ink) 45%, var(--ink) 55%, transparent 55%),
    repeating-linear-gradient(90deg, transparent 0, transparent 6px, rgba(22,32,26,0.6) 6px, rgba(22,32,26,0.6) 7px),
    repeating-linear-gradient(0deg, transparent 0, transparent 12px, rgba(22,32,26,0.7) 12px, rgba(22,32,26,0.7) 14px);
  position: relative;
}
.cmp-rig__mast-shape::before, .cmp-rig__mast-shape::after {
  content: "";
  position: absolute;
  width: 2px;
  height: 100%;
  background: var(--ink);
  top: 0;
}
.cmp-rig__mast-shape::before { left: 4px; }
.cmp-rig__mast-shape::after { right: 4px; }
.cmp-rig--slim .cmp-rig__mast-shape {
  background:
    linear-gradient(90deg, transparent 35%, var(--green) 35%, var(--green) 65%, transparent 65%),
    repeating-linear-gradient(0deg, transparent 0, transparent 8px, rgba(22,32,26,0.5) 8px, rgba(22,32,26,0.5) 9px);
}
.cmp-rig--slim .cmp-rig__mast-shape::before {
  left: 2px;
  width: 1.5px;
  background: var(--green);
}
.cmp-rig--slim .cmp-rig__mast-shape::after {
  right: 2px;
  width: 1.5px;
  background: var(--green);
}
.cmp-rig__mast-label {
  position: absolute;
  top: -22px;
  left: 50%;
  transform: translateX(-50%);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  color: var(--ink);
  background: var(--paper);
  padding: 2px 8px;
  border-radius: 3px;
  white-space: nowrap;
  border: 1px solid var(--rule);
  z-index: 2;
}

.cmp-rig__hole {
  position: absolute;
  top: 60%;
  left: 50%;
  transform: translateX(-50%);
  width: 4px;
  display: flex;
  flex-direction: column;
  align-items: center;
  transition: height 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}
.cmp-rig__hole-line {
  width: 2px;
  height: 100%;
  background: linear-gradient(180deg, rgba(22,32,26,0.4) 0%, rgba(22,32,26,0.9) 100%);
  border-radius: 0 0 2px 2px;
}
.cmp-rig--slim .cmp-rig__hole-line {
  width: 1.5px;
  background: linear-gradient(180deg, rgba(44,93,63,0.6) 0%, var(--green-deep) 100%);
}
.cmp-rig__hole-label {
  position: absolute;
  bottom: 8px;
  left: 14px;
  font-family: var(--font-mono);
  font-size: 10.5px;
  color: var(--paper);
  background: rgba(22,32,26,0.85);
  padding: 1px 6px;
  border-radius: 2px;
  white-space: nowrap;
}

.cmp-rig__name {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 500;
  text-align: center;
  padding: 20px 16px 8px;
  color: var(--ink);
}
.cmp-rig--slim .cmp-rig__name { color: var(--green-deep); }

.cmp-rig__pad {
  position: relative;
  height: 60px;
  margin: 0 24px 16px;
  background: repeating-linear-gradient(
    45deg,
    transparent 0,
    transparent 6px,
    var(--gray-200) 6px,
    var(--gray-200) 7px
  );
  border: 1px solid var(--rule);
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.cmp-rig__pad-rect {
  position: absolute;
  width: var(--w);
  height: calc(var(--h) * 0.8);
  background: var(--gray-400);
  opacity: 0.5;
  border-radius: 2px;
  transition: width 0.5s, height 0.5s;
}
.cmp-rig__pad-rect--slim {
  background: var(--green);
  opacity: 0.7;
}
.cmp-rig__pad-label {
  position: relative;
  z-index: 1;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  color: var(--ink);
  background: var(--paper);
  padding: 2px 10px;
  border-radius: 3px;
}

.cmp-rig__stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--rule);
}
.cmp-stat {
  padding: 14px 8px;
  text-align: center;
  border-right: 1px solid var(--rule);
}
.cmp-stat:last-child { border-right: none; }
.cmp-stat__num {
  display: block;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 2px;
  letter-spacing: -0.01em;
}
.cmp-rig--slim .cmp-stat__num { color: var(--green-deep); }
.cmp-stat__label {
  display: block;
  font-size: 10.5px;
  color: var(--gray-500);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

/* ============================ CONFIGURATOR ============================ */
.configurator {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 0;
  background: var(--white);
  border: 1px solid var(--rule);
  border-radius: var(--radius-lg);
  overflow: hidden;
  min-height: 460px;
}
.configurator__head {
  grid-column: 1 / 2;
  padding: 40px 40px 0;
}
.configurator__head h3 {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 500;
  margin-bottom: 8px;
}
.configurator__head p {
  font-size: 13.5px;
  color: var(--gray-700);
  line-height: 1.5;
}

.configurator__inputs {
  padding: 32px 40px 40px;
  display: flex;
  flex-direction: column;
  gap: 28px;
}
.config-q__label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-weight: 500;
  color: var(--green-deep);
  margin-bottom: 12px;
}
.config-q__opts {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.config-opt {
  padding: 9px 16px;
  background: var(--white);
  border: 1px solid var(--rule);
  border-radius: 999px;
  font-size: 13px;
  font-weight: 500;
  color: var(--gray-700);
  font-family: var(--font-body);
  transition: all 0.15s;
}
.config-opt:hover {
  border-color: var(--green);
  color: var(--green-deep);
}
.config-opt.is-active {
  background: var(--ink);
  border-color: var(--ink);
  color: var(--paper);
}

.configurator__result {
  grid-row: 1 / 3;
  grid-column: 2 / 3;
  background: linear-gradient(160deg, var(--green-deep) 0%, var(--ink) 100%);
  color: var(--paper);
  padding: 40px 36px;
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
}
.configurator__result::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle at 100% 0%, rgba(200,137,61,0.18) 0%, transparent 50%),
    radial-gradient(circle at 0% 100%, rgba(90,140,110,0.2) 0%, transparent 50%);
  pointer-events: none;
}
.configurator__result > * { position: relative; z-index: 1; }

.config-result__badge {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--amber);
  margin-bottom: 16px;
}
.config-result__name {
  font-family: var(--font-display);
  font-size: 28px;
  font-weight: 500;
  margin-bottom: 12px;
  line-height: 1;
  letter-spacing: -0.01em;
}
.config-result__brand { color: var(--paper); }
.config-result__version {
  font-family: var(--font-mono);
  font-size: 18px;
  color: var(--amber);
  margin-left: 6px;
  font-weight: 500;
}
.config-result__depth {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding: 16px 0;
  border-top: 1px solid rgba(247,245,239,0.12);
  border-bottom: 1px solid rgba(247,245,239,0.12);
  margin-bottom: 20px;
}
.config-result__depth-num {
  font-family: var(--font-display);
  font-size: 56px;
  font-weight: 500;
  color: var(--paper);
  letter-spacing: -0.02em;
  line-height: 0.9;
  transition: opacity 0.25s;
}
.config-result__depth-unit {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--gray-300);
}
.config-result__desc {
  font-size: 14px;
  color: var(--gray-300);
  line-height: 1.55;
  margin-bottom: 24px;
  flex-grow: 1;
}
.config-result__specs {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 28px;
}
.config-spec {
  display: flex;
  justify-content: space-between;
  font-size: 13px;
  padding-bottom: 8px;
  border-bottom: 1px dashed rgba(247,245,239,0.1);
}
.config-spec__label {
  color: var(--gray-300);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}
.config-spec__val {
  color: var(--paper);
  font-weight: 600;
  font-family: var(--font-mono);
}
.config-result__cta {
  align-self: flex-start;
}

/* Animation when result updates */
.config-result__updating .config-result__depth-num,
.config-result__updating .config-result__name,
.config-result__updating .config-result__desc,
.config-result__updating .config-result__specs {
  opacity: 0.3;
}
.config-result__depth-num,
.config-result__name,
.config-result__desc,
.config-result__specs {
  transition: opacity 0.2s;
}

@media (max-width: 980px) {
  .nav__links { display: none; }
  .nav__menu-btn { display: flex; }
  .nav.is-open .nav__links {
    display: flex;
    position: absolute;
    top: 70px;
    left: 0;
    right: 0;
    background: var(--paper);
    flex-direction: column;
    padding: 24px var(--gutter);
    gap: 18px;
    border-bottom: 1px solid var(--rule);
  }

  .hero__bg img { max-width: 80%; right: -20%; opacity: 0.5; }
  .hero__metrics { grid-template-columns: 1fr; gap: 18px; }

  .solution-layout { grid-template-columns: 1fr; gap: 56px; }
  .solution-list { grid-template-columns: 1fr; }

  .problem-grid { grid-template-columns: repeat(2, 1fr); }
  .problem-card:nth-child(2) { border-right: none; }
  .problem-card:nth-child(4) { border-right: none; }
  .problem-card--wide { grid-column: span 2; }

  .products-grid { grid-template-columns: 1fr 1fr; }

  .case { grid-template-columns: 1fr; gap: 32px; }
  .case__media { min-height: 280px; }

  .results-headline { grid-template-columns: 1fr; }
  .big-stat { border-right: none; border-bottom: 1px solid var(--rule-strong); }
  .big-stat:last-child { border-bottom: none; }

  .program-summary__grid { grid-template-columns: repeat(2, 1fr); gap: 24px; }

  .tech-grid { grid-template-columns: 1fr; }
  .tech-card { border-right: none; }

  .origins-grid { grid-template-columns: 1fr; gap: 32px; }

  .contact-card { grid-template-columns: 1fr; gap: 40px; }
  .form-grid { grid-template-columns: 1fr; }

  .roadmap__years { font-size: 10px; margin-left: 60px; }
  .roadmap__row { grid-template-columns: 60px 1fr; }
  .roadmap__bar span { font-size: 10px; }

  /* Widgets responsive */
  .calc { grid-template-columns: 1fr; }
  .calc__inputs { border-right: none; border-bottom: 1px solid var(--rule); }
  .compare__viz { grid-template-columns: 1fr; gap: 20px; }
  .configurator { grid-template-columns: 1fr; }
  .configurator__head, .configurator__inputs { grid-column: 1 / 2; }
  .configurator__result { grid-row: auto; grid-column: 1 / 2; }
}

@media (max-width: 640px) {
  .section__head { flex-direction: column; gap: 16px; margin-bottom: 40px; }
  .section__num::after { display: none; }

  .problem-grid { grid-template-columns: 1fr; }
  .problem-card { border-right: none; }
  .problem-card--wide { grid-column: auto; }

  .products-grid { grid-template-columns: 1fr; }

  .program-summary { padding: 32px 24px; }
  .program-summary__grid { grid-template-columns: 1fr 1fr; gap: 20px; }
  .program-summary__grid > div { padding-left: 14px; }

  .tech-card summary { padding: 20px 18px; gap: 12px; }
  .tech-card__body { padding: 4px 18px 24px 54px; }

  .comparison__chart { gap: 24px; height: 200px; }

  .hero { min-height: 80vh; padding: 60px 0 40px; }
  .hero__metrics { padding-top: 20px; gap: 14px; }

  .roadmap__years { display: none; }
  .roadmap__row { grid-template-columns: 80px 1fr; }
  .roadmap__bar span { font-size: 10.5px; }
  .roadmap__now { display: none; }

  /* Widgets — small mobile */
  .widget-tab { padding: 9px 14px; font-size: 12px; }
  .calc__inputs, .calc__output { padding: 28px 22px; }
  .compare { padding: 24px 18px; }
  .calc-extras { grid-template-columns: 1fr 1fr; gap: 16px; }
  .calc-extras .calc-extra:nth-child(3) { grid-column: 1 / 3; border-right: none; padding-left: 0; padding-top: 16px; border-top: 1px solid var(--rule); }
  .calc-extra { border-right: none; padding: 0; }
  .calc-extra:nth-child(2) { padding-left: 16px; border-left: 1px solid var(--rule); }
  .calc-savings { padding: 22px 24px; }
  .calc-savings__pct { text-align: left; }
  .calc-savings__pctlabel { margin-left: 0; }
  .configurator__head, .configurator__inputs { padding-left: 24px; padding-right: 24px; }
  .configurator__result { padding: 32px 24px; }
  .cmp-rig__diagram { height: 220px; }
  .compare__head h3, .calc__inputs-head h3, .configurator__head h3 { font-size: 19px; }
}

/* ============================ SCROLL REVEAL ============================ */
@media (prefers-reduced-motion: no-preference) {
  .section__head, .problem-card, .product, .big-stat, .case, .program-summary,
  .tech-card, .solution-comparison, .solution-copy {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.7s ease, transform 0.7s ease;
  }
  .is-revealed {
    opacity: 1 !important;
    transform: translateY(0) !important;
  }
}