:root {
    --bg-deep: #101513;
    --bg-panel: #18201d;
    --bg-raised: #222c27;
  
    --text-main: #f1f4ed;
    --text-muted: #a8b1a7;
  
    --accent-lime: #c7e36b;
    --accent-olive: #72845c;
    --accent-clay: #c57d55;
  
    --line: rgba(214, 226, 198, 0.14);
    --line-strong: rgba(214, 226, 198, 0.22);
  
    --danger: #e58171;
    --success: #c7e36b;
  
    --font-heading: "Sora", sans-serif;
    --font-body: "Manrope", sans-serif;
    --font-mono: "IBM Plex Mono", monospace;
  
    --container: 1280px;
    --page-x: 32px;
  
    --header-height: 88px;
    --radius-sm: 10px;
    --radius-md: 16px;
    --radius-lg: 22px;
  
    --shadow-card: 0 18px 60px rgba(0, 0, 0, 0.18);
    --transition: 220ms ease;
  }
  
  /* ---------- Reset ---------- */
  
  *,
  *::before,
  *::after {
    box-sizing: border-box;
  }
  
  html {
    scroll-behavior: smooth;
    background: var(--bg-deep);
  }
  
  body {
    margin: 0;
    min-width: 320px;
    overflow-x: hidden;
    background:
      radial-gradient(circle at 83% 12%, rgba(114, 132, 92, 0.11), transparent 24%),
      radial-gradient(circle at 18% 42%, rgba(199, 227, 107, 0.035), transparent 26%),
      var(--bg-deep);
    color: var(--text-main);
    font-family: var(--font-body);
    font-size: 16px;
    font-weight: 400;
    line-height: 1.6;
    text-rendering: optimizeLegibility;
    -webkit-font-smoothing: antialiased;
  }
  
  body.menu-open,
  body.popup-open {
    overflow: hidden;
  }
  
  img,
  svg {
    display: block;
    max-width: 100%;
  }
  
  button,
  input,
  textarea {
    font: inherit;
  }
  
  button {
    cursor: pointer;
  }
  
  a {
    color: inherit;
    text-decoration: none;
  }
  
  ::selection {
    background: var(--accent-lime);
    color: var(--bg-deep);
  }
  
  :focus-visible {
    outline: 2px solid var(--accent-lime);
    outline-offset: 4px;
  }
  
  /* ---------- Shared ---------- */
  
  .container {
    width: min(var(--container), calc(100% - (var(--page-x) * 2)));
    margin: 0 auto;
  }
  
  .section {
    padding: 108px 0;
  }
  
  h1,
  h2,
  h3,
  p {
    margin-top: 0;
  }
  
  h1,
  h2,
  h3 {
    font-family: var(--font-heading);
    letter-spacing: -0.055em;
  }
  
  h2 {
    margin-bottom: 42px;
    font-size: clamp(2rem, 3.3vw, 3.55rem);
    font-weight: 600;
    line-height: 1.08;
  }
  
  h3 {
    margin-bottom: 14px;
    font-size: 1.18rem;
    font-weight: 500;
    line-height: 1.28;
  }
  
  .skip-link {
    position: fixed;
    top: 12px;
    left: 12px;
    z-index: 9999;
    padding: 10px 14px;
    border-radius: 8px;
    background: var(--accent-lime);
    color: var(--bg-deep);
    font-size: 0.86rem;
    font-weight: 800;
    transform: translateY(-180%);
    transition: transform var(--transition);
  }
  
  .skip-link:focus {
    transform: translateY(0);
  }
  
  /* ---------- Header ---------- */
  
  .site-header {
    position: sticky;
    top: 0;
    z-index: 200;
    border-bottom: 1px solid var(--line);
    background: rgba(16, 21, 19, 0.84);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
  }
  
  .header-inner {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    align-items: center;
    min-height: var(--header-height);
    gap: 24px;
  }
  
  .brand {
    display: inline-flex;
    align-items: center;
    gap: 11px;
    width: max-content;
  }
  
  .brand-mark {
    display: inline-flex;
    width: 100px;
    height: 100px;
    flex: 0 0 100px;
    align-items: center;
    justify-content: center;
  }
  
  .brand-mark img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: contain;
  }
  
  .brand-name {
    font-family: var(--font-heading);
    font-size: 1.28rem;
    font-weight: 600;
    letter-spacing: -0.055em;
  }
  
  .site-nav {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 36px;
  }
  
  .nav-link {
    position: relative;
    color: var(--text-muted);
    font-size: 0.9rem;
    font-weight: 600;
    transition: color var(--transition);
  }
  
  .nav-link::after {
    position: absolute;
    right: 0;
    bottom: -8px;
    left: 0;
    height: 1px;
    background: var(--accent-lime);
    content: "";
    transform: scaleX(0);
    transform-origin: center;
    transition: transform var(--transition);
  }
  
  .nav-link:hover,
  .nav-link.is-active {
    color: var(--accent-lime);
  }
  
  .nav-link:hover::after,
  .nav-link.is-active::after {
    transform: scaleX(1);
  }
  
  .header-cta {
    justify-self: end;
    display: inline-flex;
    align-items: center;
    gap: 12px;
    padding: 11px 16px 11px 18px;
    border: 1px solid rgba(199, 227, 107, 0.6);
    border-radius: 999px;
    color: var(--accent-lime);
    font-size: 0.82rem;
    font-weight: 700;
    transition:
      background var(--transition),
      color var(--transition),
      border-color var(--transition),
      transform var(--transition);
  }
  
  .header-cta svg {
    width: 18px;
    height: 18px;
    fill: none;
    stroke: currentColor;
    stroke-linecap: round;
    stroke-linejoin: round;
    stroke-width: 1.65;
  }
  
  .header-cta:hover {
    border-color: var(--accent-lime);
    background: var(--accent-lime);
    color: var(--bg-deep);
    transform: translateY(-1px);
  }
  
  .menu-toggle,
  .mobile-menu {
    display: none;
  }
  
  /* ---------- Hero ---------- */
  
  .hero {
    position: relative;
    min-height: 720px;
    padding-top: 92px;
    padding-bottom: 96px;
    overflow: hidden;
  }
  
  .hero::before {
    position: absolute;
    top: 0;
    left: 0;
    width: 42%;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--line-strong), transparent);
    content: "";
  }
  
  .hero-grid {
    display: grid;
    grid-template-columns: minmax(0, 0.92fr) minmax(520px, 1.08fr);
    align-items: center;
    gap: 40px;
    min-height: 530px;
  }
  
  .hero-content {
    position: relative;
    z-index: 2;
    max-width: 620px;
  }
  
  .hero h1 {
    max-width: 720px;
    margin-bottom: 28px;
    font-size: clamp(3.4rem, 6.2vw, 6.6rem);
    font-weight: 600;
    line-height: 0.97;
  }
  
  .hero-text {
    max-width: 570px;
    margin-bottom: 35px;
    color: var(--text-muted);
    font-size: 1.06rem;
    line-height: 1.8;
  }
  
  .hero-actions {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 28px;
  }
  
  .button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 14px;
    min-height: 52px;
    padding: 0 20px;
    border: 1px solid transparent;
    border-radius: 8px;
    font-size: 0.88rem;
    font-weight: 800;
    transition:
      transform var(--transition),
      box-shadow var(--transition),
      background var(--transition),
      color var(--transition),
      border-color var(--transition);
  }
  
  .button svg {
    width: 18px;
    height: 18px;
    fill: none;
    stroke: currentColor;
    stroke-linecap: round;
    stroke-linejoin: round;
    stroke-width: 1.8;
  }
  
  .button-primary {
    background: var(--accent-lime);
    color: var(--bg-deep);
    box-shadow: 0 11px 26px rgba(199, 227, 107, 0.13);
  }
  
  .button-primary:hover {
    background: #d7ef87;
    box-shadow: 0 15px 34px rgba(199, 227, 107, 0.21);
    transform: translateY(-2px);
  }
  
  .button-primary:active {
    transform: translateY(0);
  }
  
  .text-link {
    display: inline-flex;
    align-items: center;
    gap: 9px;
    color: var(--text-main);
    font-size: 0.9rem;
    font-weight: 700;
  }
  
  .text-link span {
    color: var(--accent-lime);
    font-size: 1.1rem;
    transition: transform var(--transition);
  }
  
  .text-link:hover span {
    transform: translateY(4px);
  }
  
  /* ---------- Hero system visual ---------- */
  
  .system-visual {
    position: relative;
    min-height: 490px;
    perspective: 1200px;
  }
  
  .system-visual::before {
    position: absolute;
    right: -4%;
    bottom: -4%;
    width: 76%;
    height: 58%;
    border-radius: 50%;
    background: radial-gradient(ellipse, rgba(199, 227, 107, 0.11), transparent 68%);
    content: "";
    filter: blur(10px);
  }
  
  .system-axis {
    position: absolute;
    left: 8%;
    z-index: 1;
    width: 1px;
    background: linear-gradient(to bottom, transparent, rgba(199, 227, 107, 0.65), transparent);
  }
  
  .system-axis::before {
    position: absolute;
    top: 50%;
    left: -3px;
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--accent-lime);
    box-shadow: 0 0 16px rgba(199, 227, 107, 0.75);
    content: "";
  }
  
  .system-axis-one {
    top: 15%;
    height: 18%;
  }
  
  .system-axis-two {
    top: 43%;
    height: 19%;
  }
  
  .system-axis-three {
    top: 68%;
    height: 17%;
  }
  
  .system-layer {
    position: absolute;
    right: 3%;
    width: 79%;
    min-height: 155px;
    padding: 21px 24px;
    border: 1px solid rgba(199, 227, 107, 0.28);
    background:
      linear-gradient(135deg, rgba(35, 45, 40, 0.88), rgba(19, 26, 23, 0.96)),
      var(--bg-panel);
    box-shadow:
      inset 0 1px 0 rgba(255, 255, 255, 0.03),
      0 32px 48px rgba(0, 0, 0, 0.21);
    transform: skewY(5deg) rotateX(18deg) rotateY(-19deg);
    transform-origin: right center;
    transition:
      transform 500ms ease,
      border-color 500ms ease,
      box-shadow 500ms ease;
  }
  
  .system-layer::after {
    position: absolute;
    top: 15px;
    right: 15px;
    bottom: 15px;
    left: 15px;
    border: 1px solid rgba(214, 226, 198, 0.07);
    content: "";
    pointer-events: none;
  }
  
  .system-visual:hover .system-layer-top {
    transform: translateY(-10px) translateX(2px) skewY(5deg) rotateX(18deg) rotateY(-19deg);
  }
  
  .system-visual:hover .system-layer-middle {
    transform: translateY(-2px) skewY(5deg) rotateX(18deg) rotateY(-19deg);
  }
  
  .system-visual:hover .system-layer-bottom {
    transform: translateY(8px) translateX(-2px) skewY(5deg) rotateX(18deg) rotateY(-19deg);
  }
  
  .system-layer-top {
    top: 5%;
    z-index: 4;
  }
  
  .system-layer-middle {
    top: 32%;
    right: 7%;
    z-index: 3;
    width: 77%;
  }
  
  .system-layer-bottom {
    top: 59%;
    right: 11%;
    z-index: 2;
    width: 75%;
  }
  
  .layer-topbar {
    display: flex;
    gap: 5px;
    margin-bottom: 13px;
  }
  
  .layer-topbar span {
    width: 5px;
    height: 5px;
    border-radius: 50%;
    background: rgba(199, 227, 107, 0.42);
  }
  
  .layer-heading {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 14px;
    color: var(--text-muted);
    font-family: var(--font-mono);
    font-size: 0.59rem;
    font-weight: 500;
    letter-spacing: 0.08em;
  }
  
  .layer-status {
    color: var(--accent-lime);
    font-size: 0.53rem;
  }
  
  .layer-lines {
    display: grid;
    gap: 8px;
    margin-top: 20px;
  }
  
  .layer-lines span {
    display: block;
    height: 3px;
    background: linear-gradient(90deg, rgba(199, 227, 107, 0.8), rgba(199, 227, 107, 0.06));
  }
  
  .layer-lines span:nth-child(1) {
    width: 83%;
  }
  
  .layer-lines span:nth-child(2) {
    width: 65%;
  }
  
  .layer-lines span:nth-child(3) {
    width: 91%;
  }
  
  .layer-lines span:nth-child(4) {
    width: 44%;
  }
  
  .layer-footer {
    display: flex;
    gap: 16px;
    margin-top: 18px;
    color: rgba(241, 244, 237, 0.35);
    font-family: var(--font-mono);
    font-size: 0.5rem;
    letter-spacing: 0.07em;
  }
  
  .system-flow {
    display: flex;
    align-items: center;
    gap: 11px;
    margin-top: 28px;
  }
  
  .system-flow-lower {
    margin-top: 14px;
  }
  
  .flow-node {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 39px;
    min-height: 23px;
    padding: 0 6px;
    border: 1px solid rgba(199, 227, 107, 0.48);
    background: rgba(199, 227, 107, 0.07);
    color: var(--accent-lime);
    font-family: var(--font-mono);
    font-size: 0.54rem;
    letter-spacing: 0.05em;
  }
  
  .flow-line {
    width: 100%;
    height: 1px;
    background: linear-gradient(90deg, rgba(199, 227, 107, 0.7), rgba(199, 227, 107, 0.13));
  }
  
  .foundation-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 10px;
    margin-top: 23px;
  }
  
  .foundation-cell {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 39px;
    border: 1px solid rgba(199, 227, 107, 0.22);
    background: rgba(199, 227, 107, 0.035);
    color: var(--accent-lime);
    font-family: var(--font-mono);
    font-size: 0.62rem;
  }
  
  .foundation-metrics {
    display: flex;
    align-items: center;
    gap: 26px;
    margin-top: 18px;
  }
  
  .foundation-metrics div {
    display: grid;
    gap: 3px;
  }
  
  .foundation-metrics span {
    color: rgba(241, 244, 237, 0.38);
    font-family: var(--font-mono);
    font-size: 0.5rem;
    letter-spacing: 0.08em;
  }
  
  .foundation-metrics strong {
    color: var(--accent-lime);
    font-family: var(--font-mono);
    font-size: 0.67rem;
    font-weight: 500;
    letter-spacing: 0.04em;
  }
  
  /* ---------- Solutions ---------- */
  
  .solutions {
    position: relative;
    border-top: 1px solid var(--line);
    background:
      linear-gradient(180deg, rgba(24, 32, 29, 0.44), rgba(16, 21, 19, 0) 68%);
  }
  
  .solutions-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
  }
  
  .solution-card {
    position: relative;
    display: flex;
    min-height: 330px;
    flex-direction: column;
    padding: 28px;
    border: 1px solid var(--line);
    border-radius: var(--radius-sm);
    background: rgba(24, 32, 29, 0.55);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.018);
    overflow: hidden;
    transition:
      border-color var(--transition),
      background var(--transition),
      transform var(--transition),
      box-shadow var(--transition);
  }
  
  .solution-card::before {
    position: absolute;
    top: 0;
    left: 0;
    width: 1px;
    height: 0;
    background: var(--accent-lime);
    content: "";
    transition: height 320ms ease;
  }
  
  .solution-card:hover {
    border-color: rgba(199, 227, 107, 0.38);
    background: var(--bg-raised);
    box-shadow: var(--shadow-card);
    transform: translateY(-5px);
  }
  
  .solution-card:hover::before {
    height: 100%;
  }
  
  .solution-card-top {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    margin-bottom: 42px;
  }
  
  .card-number {
    color: var(--accent-lime);
    font-family: var(--font-mono);
    font-size: 1.1rem;
    letter-spacing: -0.08em;
  }
  
  .solution-icon {
    width: 51px;
    height: 51px;
    fill: none;
    stroke: var(--accent-lime);
    stroke-linecap: round;
    stroke-linejoin: round;
    stroke-width: 1.35;
  }
  
  .solution-card p {
    max-width: 325px;
    margin-bottom: 24px;
    color: var(--text-muted);
    font-size: 0.92rem;
    line-height: 1.72;
  }
  
  .card-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 34px;
    height: 34px;
    margin-top: auto;
    border-radius: 50%;
    color: var(--accent-lime);
    font-size: 1.32rem;
    transition:
      background var(--transition),
      color var(--transition),
      transform var(--transition);
  }
  
  .card-link:hover {
    background: var(--accent-lime);
    color: var(--bg-deep);
    transform: translateX(4px);
  }
  
  /* ---------- Systems ---------- */
  
  .systems {
    padding-top: 82px;
    padding-bottom: 108px;
  }
  
  .systems-flow {
    display: grid;
    grid-template-columns:
      minmax(0, 1fr)
      42px
      minmax(0, 1fr)
      42px
      minmax(0, 1fr)
      42px
      minmax(0, 1fr);
    align-items: center;
    gap: 0;
  }
  
  .system-card {
    min-height: 244px;
    padding: 26px 22px 25px;
    border: 1px solid var(--line);
    border-radius: var(--radius-sm);
    background: rgba(24, 32, 29, 0.36);
    transition:
      border-color var(--transition),
      background var(--transition),
      transform var(--transition);
  }
  
  .system-card:hover {
    border-color: rgba(199, 227, 107, 0.34);
    background: rgba(34, 44, 39, 0.78);
    transform: translateY(-4px);
  }
  
  .system-card-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 43px;
    height: 43px;
    margin-bottom: 28px;
    border: 1px solid rgba(199, 227, 107, 0.24);
    border-radius: 8px;
    background: rgba(199, 227, 107, 0.045);
  }
  
  .system-card-icon svg {
    width: 26px;
    height: 26px;
    fill: none;
    stroke: var(--accent-lime);
    stroke-linecap: round;
    stroke-linejoin: round;
    stroke-width: 1.45;
  }
  
  .system-card h3 {
    font-size: 1rem;
  }
  
  .system-card p {
    margin-bottom: 0;
    color: var(--text-muted);
    font-size: 0.84rem;
    line-height: 1.65;
  }
  
  .flow-connector {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    height: 1px;
  }
  
  .flow-connector i {
    position: absolute;
    right: 0;
    left: 0;
    height: 1px;
    background: linear-gradient(90deg, rgba(199, 227, 107, 0.1), rgba(199, 227, 107, 0.7), rgba(199, 227, 107, 0.1));
  }
  
  .flow-connector b {
    position: relative;
    z-index: 1;
    padding: 0 4px;
    background: var(--bg-deep);
    color: var(--accent-lime);
    font-family: var(--font-mono);
    font-size: 0.78rem;
    font-weight: 400;
  }
  
  /* ---------- Approach ---------- */

.approach {
    position: relative;
    border-top: 1px solid var(--line);
    background:
      linear-gradient(180deg, rgba(24, 32, 29, 0.32), transparent 75%);
  }
  
  .approach-list {
    display: grid;
    gap: 10px;
  }
  
  .approach-item {
    overflow: hidden;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: rgba(24, 32, 29, 0.42);
    transition:
      border-color var(--transition),
      background var(--transition),
      box-shadow var(--transition);
  }
  
  .approach-item:hover,
  .approach-item.is-open {
    border-color: rgba(199, 227, 107, 0.34);
    background: var(--bg-raised);
  }
  
  .approach-item.is-open {
    box-shadow:
      inset 0 1px 0 rgba(255, 255, 255, 0.025),
      0 14px 42px rgba(0, 0, 0, 0.12);
  }
  
  .approach-trigger {
    display: grid;
    width: 100%;
    grid-template-columns: 80px minmax(0, 1fr) 42px;
    align-items: center;
    gap: 22px;
    min-height: 104px;
    padding: 20px 26px;
    border: 0;
    background: transparent;
    color: var(--text-main);
    text-align: left;
  }
  
  .approach-number {
    color: var(--accent-lime);
    font-family: var(--font-mono);
    font-size: 1.35rem;
    letter-spacing: -0.08em;
  }
  
  .approach-title {
    position: relative;
    display: block;
    padding-left: 28px;
    font-family: var(--font-heading);
    font-size: 1rem;
    font-weight: 500;
    letter-spacing: -0.035em;
    line-height: 1.3;
  }
  
  .approach-title::before {
    position: absolute;
    top: -2px;
    bottom: -2px;
    left: 0;
    width: 1px;
    background: var(--accent-clay);
    content: "";
  }
  
  .approach-toggle {
    position: relative;
    display: block;
    width: 34px;
    height: 34px;
    color: var(--accent-lime);
  }
  
  .approach-toggle span {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 15px;
    height: 1px;
    background: currentColor;
    transform: translate(-50%, -50%);
    transition: transform var(--transition);
  }
  
  .approach-toggle span:last-child {
    transform: translate(-50%, -50%) rotate(90deg);
  }
  
  .approach-item.is-open .approach-toggle span:last-child {
    transform: translate(-50%, -50%) rotate(0deg);
  }
  
  .approach-panel {
    overflow: hidden;
    max-height: none;
    opacity: 1;
    transition:
      max-height 360ms ease,
      opacity 260ms ease;
  }
  
  .approach-panel[hidden] {
    display: none;
  }
  
  .approach-panel-inner {
    min-height: 0;
    overflow: hidden;
    padding: 0 68px 26px 128px;
  }
  
  .approach-panel-inner::before {
    display: block;
    height: 1px;
    margin-bottom: 22px;
    background: var(--line);
    content: "";
  }
  
  .approach-panel p {
    max-width: 690px;
    margin-bottom: 20px;
    color: var(--text-muted);
    font-size: 0.88rem;
    line-height: 1.75;
  }
  
  .approach-detail-list {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
  }
  
  .approach-detail-list span {
    padding: 7px 10px;
    border: 1px solid rgba(199, 227, 107, 0.2);
    border-radius: 999px;
    background: rgba(199, 227, 107, 0.04);
    color: var(--accent-lime);
    font-family: var(--font-mono);
    font-size: 0.58rem;
    letter-spacing: 0.04em;
  }
  
  /* ---------- Contact ---------- */
  
  .contact {
    border-top: 1px solid var(--line);
    background:
      radial-gradient(circle at 24% 70%, rgba(199, 227, 107, 0.07), transparent 28%),
      #0d1210;
  }
  
  .contact-grid {
    display: grid;
    grid-template-columns: minmax(0, 0.78fr) minmax(520px, 1.22fr);
    align-items: start;
    gap: 76px;
  }
  
  .contact-intro h2 {
    margin-bottom: 22px;
  }
  
  .contact-intro > p {
    max-width: 430px;
    margin-bottom: 32px;
    color: var(--text-muted);
    font-size: 0.98rem;
    line-height: 1.75;
  }
  
  .contact-form {
    display: grid;
    gap: 13px;
  }
  
  .form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 13px;
  }
  
  .form-field {
    position: relative;
  }
  
  .form-field label {
    position: absolute;
    top: 12px;
    left: 15px;
    z-index: 1;
    color: rgba(241, 244, 237, 0.43);
    font-size: 0.72rem;
    font-weight: 600;
    pointer-events: none;
    transition:
      color var(--transition),
      transform var(--transition);
  }
  
  .form-field label span {
    color: rgba(241, 244, 237, 0.27);
  }
  
  .form-field input,
  .form-field textarea {
    width: 100%;
    border: 1px solid var(--line);
    border-radius: 7px;
    outline: none;
    background: rgba(24, 32, 29, 0.76);
    color: var(--text-main);
    transition:
      border-color var(--transition),
      background var(--transition),
      box-shadow var(--transition);
  }
  
  .form-field input {
    min-height: 58px;
    padding: 25px 15px 8px;
  }
  
  .form-field textarea {
    min-height: 160px;
    padding: 27px 15px 14px;
    resize: vertical;
  }
  
  .form-field input:focus,
  .form-field textarea:focus {
    border-color: rgba(199, 227, 107, 0.7);
    background: var(--bg-raised);
    box-shadow: 0 0 0 3px rgba(199, 227, 107, 0.08);
  }
  
  .form-field:focus-within label {
    color: var(--accent-lime);
  }
  
  .form-field-message label {
    top: 13px;
  }
  
  .form-honeypot {
    position: absolute !important;
    left: -9999px !important;
    width: 1px !important;
    height: 1px !important;
    overflow: hidden !important;
  }
  
  .form-actions {
    display: flex;
    align-items: center;
    gap: 16px;
    min-height: 53px;
    margin-top: 4px;
  }
  
  .form-status {
    margin: 0;
    color: var(--text-muted);
    font-size: 0.82rem;
  }
  
  .form-status.is-success {
    color: var(--success);
  }
  
  .form-status.is-error {
    color: var(--danger);
  }
  
/* ---------- Footer ---------- */

.site-footer {
    border-top: 1px solid var(--line);
    background: #0c100e;
  }
  
  .footer-main {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
    align-items: center;
    gap: 46px;
    min-height: 220px;
    padding-top: 52px;
    padding-bottom: 52px;
  }
  
  .footer-company {
    justify-self: start;
  }
  
  .footer-company address {
    margin: 0 0 15px;
    color: var(--text-muted);
    font-size: 0.76rem;
    font-style: normal;
    line-height: 1.75;
  }
  
  .footer-legal-data {
    display: grid;
    gap: 3px;
    color: rgba(241, 244, 237, 0.48);
    font-family: var(--font-mono);
    font-size: 0.63rem;
    letter-spacing: 0.015em;
  }
  
  .footer-logo-wrap {
    display: flex;
    justify-content: center;
  }
  
  .footer-brand {
    transition: opacity var(--transition), transform var(--transition);
  }
  
  .footer-brand:hover {
    opacity: 0.88;
    transform: translateY(-2px);
  }
  
  .footer-brand .brand-mark {
    width: 100px;
    height: 100px;
    flex-basis: 100px;
  }
  
  .footer-brand .brand-name {
    font-size: 1.5rem;
  }
  
  .footer-nav {
    display: grid;
    justify-items: end;
    gap: 9px;
  }
  
  .footer-nav a {
    width: max-content;
    color: var(--text-muted);
    font-size: 0.78rem;
    font-weight: 500;
    transition:
      color var(--transition),
      transform var(--transition);
  }
  
  .footer-nav a:hover {
    color: var(--accent-lime);
    transform: translateX(-3px);
  }
  
  .footer-bottom {
    display: flex;
    justify-content: center;
    padding-top: 19px;
    padding-bottom: 24px;
    border-top: 1px solid var(--line);
    text-align: center;
  }
  
  .footer-bottom p {
    margin: 0;
    color: rgba(241, 244, 237, 0.33);
    font-size: 0.68rem;
  }
  
  /* ---------- Popup ---------- */
  
  .form-popup {
    position: fixed;
    inset: 0;
    z-index: 1000;
    display: grid;
    place-items: center;
    padding: 22px;
    visibility: hidden;
    opacity: 0;
    transition:
      opacity var(--transition),
      visibility var(--transition);
  }
  
  .form-popup.is-visible {
    visibility: visible;
    opacity: 1;
  }
  
  .form-popup-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(4, 8, 6, 0.8);
    backdrop-filter: blur(7px);
    -webkit-backdrop-filter: blur(7px);
  }
  
  .form-popup-card {
    position: relative;
    z-index: 1;
    width: min(100%, 470px);
    padding: 43px 38px 38px;
    border: 1px solid rgba(199, 227, 107, 0.3);
    border-radius: var(--radius-md);
    background: var(--bg-panel);
    box-shadow: 0 30px 80px rgba(0, 0, 0, 0.44);
    transform: translateY(18px) scale(0.98);
    transition: transform 260ms ease;
  }
  
  .form-popup.is-visible .form-popup-card {
    transform: translateY(0) scale(1);
  }
  
  .form-popup-close {
    position: absolute;
    top: 13px;
    right: 13px;
    width: 37px;
    height: 37px;
    border: 0;
    border-radius: 50%;
    background: transparent;
    color: var(--text-muted);
    transition:
      color var(--transition),
      background var(--transition);
  }
  
  .form-popup-close:hover {
    background: rgba(241, 244, 237, 0.07);
    color: var(--text-main);
  }
  
  .form-popup-close span {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 15px;
    height: 1px;
    background: currentColor;
  }
  
  .form-popup-close span:first-child {
    transform: translate(-50%, -50%) rotate(45deg);
  }
  
  .form-popup-close span:last-child {
    transform: translate(-50%, -50%) rotate(-45deg);
  }
  
  .form-popup-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 52px;
    height: 52px;
    margin-bottom: 23px;
    border: 1px solid rgba(199, 227, 107, 0.56);
    border-radius: 50%;
    background: rgba(199, 227, 107, 0.1);
    color: var(--accent-lime);
  }
  
  .form-popup-icon.is-error {
    border-color: rgba(229, 129, 113, 0.58);
    background: rgba(229, 129, 113, 0.09);
    color: var(--danger);
  }
  
  .form-popup-icon svg {
    width: 27px;
    height: 27px;
    fill: none;
    stroke: currentColor;
    stroke-linecap: round;
    stroke-linejoin: round;
    stroke-width: 1.8;
  }
  
  .form-popup-card h2 {
    margin-bottom: 12px;
    font-size: 1.85rem;
  }
  
  .form-popup-card p {
    margin-bottom: 0;
    color: var(--text-muted);
    font-size: 0.96rem;
  }
  
  /* ---------- Responsive ---------- */
  
  @media (max-width: 1120px) {
    :root {
      --page-x: 26px;
    }
  
    .hero-grid {
      grid-template-columns: minmax(0, 0.95fr) minmax(460px, 1.05fr);
      gap: 22px;
    }
  
    .system-visual {
      transform: scale(0.92);
      transform-origin: right center;
    }
  
    .systems-flow {
      grid-template-columns: repeat(4, minmax(0, 1fr));
      gap: 14px;
    }
  
    .flow-connector {
      display: none;
    }
  
    .system-card {
      min-height: 255px;
    }
  
    .contact-grid {
      grid-template-columns: minmax(0, 0.75fr) minmax(450px, 1.25fr);
      gap: 44px;
    }
  
    .footer-main {
      grid-template-columns: 1fr 150px 1fr;
      gap: 28px;
    }
  
  }
  
  @media (max-width: 900px) {
    :root {
      --header-height: 76px;
    }
  
    .header-inner {
      grid-template-columns: 1fr auto;
    }
  
    .site-nav,
    .header-cta {
      display: none;
    }
  
    .menu-toggle {
      position: relative;
      display: inline-flex;
      width: 44px;
      height: 44px;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      gap: 6px;
      border: 1px solid var(--line);
      border-radius: 8px;
      background: rgba(24, 32, 29, 0.7);
      color: var(--text-main);
    }
  
    .menu-toggle span {
      width: 18px;
      height: 1px;
      background: currentColor;
      transition: transform var(--transition);
    }
  
    .menu-toggle.is-open span:first-child {
      transform: translateY(3.5px) rotate(45deg);
    }
  
    .menu-toggle.is-open span:last-child {
      transform: translateY(-3.5px) rotate(-45deg);
    }
  
    .mobile-menu {
      display: grid;
      grid-template-rows: 0fr;
      overflow: hidden;
      border-top: 1px solid transparent;
      background: rgba(16, 21, 19, 0.98);
      transition:
        grid-template-rows 260ms ease,
        border-color 260ms ease;
    }
  
    .mobile-menu.is-open {
      grid-template-rows: 1fr;
      border-top-color: var(--line);
    }
  
    .mobile-menu > * {
      min-height: 0;
    }
  
    .mobile-nav {
      display: grid;
      gap: 1px;
      padding: 16px var(--page-x) 8px;
    }
  
    .mobile-nav a {
      padding: 13px 0;
      border-bottom: 1px solid var(--line);
      color: var(--text-muted);
      font-size: 0.94rem;
      font-weight: 700;
    }
  
    .mobile-nav a:hover {
      color: var(--accent-lime);
    }
  
    .mobile-menu-cta {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-height: 48px;
      margin: 10px var(--page-x) 20px;
      border-radius: 8px;
      background: var(--accent-lime);
      color: var(--bg-deep);
      font-size: 0.86rem;
      font-weight: 800;
    }
  
    .hero {
      min-height: auto;
      padding-top: 74px;
      padding-bottom: 76px;
    }
  
    .hero-grid {
      grid-template-columns: 1fr;
      gap: 45px;
    }
  
    .hero-content {
      max-width: 680px;
    }
  
    .system-visual {
      width: min(700px, 100%);
      min-height: 440px;
      margin: 0 auto;
      transform: none;
    }
  
    .solutions-grid {
      grid-template-columns: 1fr;
    }
  
    .solution-card {
      min-height: 270px;
    }
  
    .solution-card-top {
      margin-bottom: 30px;
    }
  
    .systems-flow {
      grid-template-columns: repeat(2, minmax(0, 1fr));
    }
  
    .contact-grid {
      grid-template-columns: 1fr;
      gap: 38px;
    }
  
    .contact-intro > p {
      max-width: 620px;
    }
  
    .footer-main {
        grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
        gap: 24px;
      }
      
      .footer-brand .brand-name {
        font-size: 1.3rem;
      }
  }
  
  @media (max-width: 640px) {
    :root {
      --page-x: 18px;
    }
  
    .section {
      padding: 76px 0;
    }
  
    h2 {
      margin-bottom: 30px;
    }

    .brand-mark {
        width: 25px;
        height: 25px;
        flex-basis: 25px;
      }
  
    .brand-name {
      font-size: 1.18rem;
    }
  
    .hero {
      padding-top: 55px;
    }
  
    .hero h1 {
      font-size: clamp(2.75rem, 13vw, 4.2rem);
      line-height: 0.99;
    }
  
    .hero-text {
      margin-bottom: 28px;
      font-size: 0.97rem;
      line-height: 1.75;
    }
  
    .hero-actions {
      align-items: flex-start;
      flex-direction: column;
      gap: 19px;
    }
  
    .button {
      width: 100%;
    }
  
    .system-visual {
      min-height: 350px;
      margin-top: -5px;
    }
  
    .system-layer {
      right: -1%;
      width: 88%;
      min-height: 124px;
      padding: 16px;
    }
  
    .system-layer-middle {
      right: 4%;
      width: 85%;
    }
  
    .system-layer-bottom {
      right: 8%;
      width: 82%;
    }
  
    .layer-heading {
      font-size: 0.5rem;
    }
  
    .layer-status {
      font-size: 0.46rem;
    }
  
    .layer-lines {
      gap: 6px;
      margin-top: 16px;
    }
  
    .layer-footer {
      gap: 8px;
      margin-top: 14px;
      font-size: 0.43rem;
    }
  
    .system-flow {
      gap: 5px;
      margin-top: 21px;
    }
  
    .system-flow-lower {
      margin-top: 9px;
    }
  
    .flow-node {
      min-width: 29px;
      min-height: 19px;
      padding: 0 3px;
      font-size: 0.44rem;
    }
  
    .foundation-grid {
      gap: 6px;
      margin-top: 15px;
    }
  
    .foundation-cell {
      min-height: 28px;
      font-size: 0.51rem;
    }
  
    .foundation-metrics {
      gap: 14px;
      margin-top: 11px;
    }
  
    .foundation-metrics span {
      font-size: 0.43rem;
    }
  
    .foundation-metrics strong {
      font-size: 0.55rem;
    }
  
    .solutions-grid {
      gap: 13px;
    }
  
    .solution-card {
      min-height: 250px;
      padding: 23px;
    }
  
    .solution-card p {
      font-size: 0.87rem;
    }
  
    .systems {
      padding-top: 68px;
    }
  
    .systems-flow {
      grid-template-columns: 1fr;
      gap: 11px;
    }
  
    .system-card {
      min-height: auto;
      padding: 22px;
    }
  
    .system-card-icon {
      margin-bottom: 20px;
    }
  
    .approach-trigger {
        grid-template-columns: 46px minmax(0, 1fr) 31px;
        gap: 12px;
        min-height: 86px;
        padding: 17px 15px;
      }
      
      .approach-number {
        align-self: start;
        padding-top: 4px;
        font-size: 1.06rem;
      }
      
      .approach-title {
        padding-left: 16px;
        font-size: 0.91rem;
        line-height: 1.34;
      }
      
      .approach-toggle {
        width: 30px;
        height: 30px;
      }
      
      .approach-panel-inner {
        padding: 0 17px 20px 73px;
      }
      
      .approach-panel-inner::before {
        margin-bottom: 16px;
      }
      
      .approach-panel p {
        margin-bottom: 16px;
        font-size: 0.78rem;
        line-height: 1.68;
      }
      
      .approach-detail-list {
        gap: 6px;
      }
      
      .approach-detail-list span {
        padding: 6px 8px;
        font-size: 0.49rem;
      }
  
    .form-row {
      grid-template-columns: 1fr;
    }
  
    .form-actions {
      align-items: stretch;
      flex-direction: column;
    }
  
    .form-status {
      min-height: 21px;
    }
  
    .footer-main {
        grid-template-columns: 1fr;
        justify-items: center;
        gap: 31px;
        min-height: auto;
        padding-top: 42px;
        padding-bottom: 39px;
        text-align: center;
      }
      
      .footer-company {
        justify-self: center;
      }
      
      .footer-company address {
        font-size: 0.74rem;
      }
      
      .footer-legal-data {
        justify-items: center;
      }
      
      .footer-logo-wrap {
        order: -1;
      }
      
      .footer-brand .brand-mark {
        width: 31px;
        height: 31px;
        flex-basis: 31px;
      }
      
      .footer-brand .brand-name {
        font-size: 1.36rem;
      }
      
      .footer-nav {
        justify-items: center;
        gap: 10px;
      }
      
      .footer-nav a:hover {
        transform: none;
      }
      
      .footer-bottom {
        padding-top: 16px;
        padding-bottom: 21px;
      }
      
      .footer-bottom p {
        font-size: 0.64rem;
      }
  
    .form-popup-card {
      padding: 38px 24px 28px;
    }
  }

  .reveal-item {
    opacity: 0;
    transform: translateY(16px);
    transition:
      opacity 600ms ease,
      transform 600ms ease;
  }
  
  .reveal-item.is-revealed {
    opacity: 1;
    transform: translateY(0);
  }
  
  .button:disabled {
    cursor: wait;
    opacity: 0.7;
  }
  
  .button.is-loading svg {
    animation: button-arrow-pulse 700ms ease-in-out infinite alternate;
  }
  
  @keyframes button-arrow-pulse {
    from {
      transform: translateX(0);
    }
  
    to {
      transform: translateX(4px);
    }
  }

  /* ---------- Privacy Policy ---------- */

.privacy-page {
    background:
      radial-gradient(circle at 86% 11%, rgba(114, 132, 92, 0.1), transparent 24%),
      var(--bg-deep);
  }
  
  .privacy-hero {
    padding: 84px 0 68px;
    border-bottom: 1px solid var(--line);
  }
  
  .back-link {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 42px;
    color: var(--accent-lime);
    font-size: 0.84rem;
    font-weight: 700;
  }
  
  .back-link span {
    font-size: 1.15rem;
    transition: transform var(--transition);
  }
  
  .back-link:hover span {
    transform: translateX(-4px);
  }
  
  .privacy-hero h1 {
    max-width: 760px;
    margin-bottom: 19px;
    font-size: clamp(3rem, 6vw, 5.5rem);
    font-weight: 600;
    line-height: 0.98;
  }
  
  .privacy-hero p {
    max-width: 660px;
    margin-bottom: 26px;
    color: var(--text-muted);
    font-size: 1rem;
    line-height: 1.75;
  }
  
  .privacy-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 10px 22px;
    color: rgba(241, 244, 237, 0.48);
    font-family: var(--font-mono);
    font-size: 0.68rem;
    letter-spacing: 0.02em;
  }
  
  .privacy-content-section {
    padding: 74px 0 110px;
  }
  
  .privacy-layout {
    display: grid;
    grid-template-columns: 235px minmax(0, 760px);
    justify-content: space-between;
    gap: 70px;
  }
  
  .privacy-sidebar {
    position: relative;
  }
  
  .privacy-nav {
    position: sticky;
    top: calc(var(--header-height) + 28px);
    display: grid;
    gap: 3px;
    padding-left: 15px;
    border-left: 1px solid var(--line);
  }
  
  .privacy-nav a {
    padding: 6px 0;
    color: rgba(241, 244, 237, 0.48);
    font-size: 0.73rem;
    line-height: 1.4;
    transition:
      color var(--transition),
      transform var(--transition);
  }
  
  .privacy-nav a:hover {
    color: var(--accent-lime);
    transform: translateX(3px);
  }
  
  .privacy-document {
    min-width: 0;
  }
  
  .privacy-document section {
    padding: 0 0 44px;
    margin-bottom: 44px;
    border-bottom: 1px solid var(--line);
    scroll-margin-top: calc(var(--header-height) + 28px);
  }
  
  .privacy-document section:last-child {
    padding-bottom: 0;
    margin-bottom: 0;
    border-bottom: 0;
  }
  
  .privacy-number {
    display: block;
    margin-bottom: 14px;
    color: var(--accent-lime);
    font-family: var(--font-mono);
    font-size: 0.7rem;
    letter-spacing: 0.08em;
  }
  
  .privacy-document h2 {
    margin-bottom: 21px;
    font-size: clamp(1.75rem, 3vw, 2.55rem);
  }
  
  .privacy-document h3 {
    margin-top: 29px;
    margin-bottom: 9px;
    color: var(--text-main);
    font-size: 1rem;
  }
  
  .privacy-document p,
  .privacy-document li {
    color: var(--text-muted);
    font-size: 0.92rem;
    line-height: 1.82;
  }
  
  .privacy-document p {
    margin-bottom: 17px;
  }
  
  .privacy-document ul {
    display: grid;
    gap: 7px;
    margin: 0 0 18px;
    padding-left: 20px;
  }
  
  .privacy-document li::marker {
    color: var(--accent-lime);
  }
  
  .privacy-document a:not(.privacy-contact-link) {
    color: var(--accent-lime);
    text-decoration: underline;
    text-decoration-color: rgba(199, 227, 107, 0.35);
    text-underline-offset: 4px;
  }
  
  .privacy-document a:not(.privacy-contact-link):hover {
    text-decoration-color: var(--accent-lime);
  }
  
  .privacy-company-card {
    display: grid;
    gap: 3px;
    padding: 21px 23px;
    margin: 22px 0;
    border: 1px solid rgba(199, 227, 107, 0.22);
    border-radius: 9px;
    background: rgba(24, 32, 29, 0.54);
  }
  
  .privacy-company-card strong {
    margin-bottom: 5px;
    color: var(--text-main);
    font-size: 0.95rem;
    font-weight: 700;
  }
  
  .privacy-company-card span,
  .privacy-company-card a {
    color: var(--text-muted);
    font-family: var(--font-mono);
    font-size: 0.69rem;
    line-height: 1.65;
  }
  
  .privacy-company-card a {
    margin-top: 6px;
    color: var(--accent-lime);
  }
  
  .privacy-contact-link {
    display: inline-flex;
    align-items: center;
    gap: 9px;
    padding: 13px 16px;
    border: 1px solid rgba(199, 227, 107, 0.45);
    border-radius: 8px;
    color: var(--accent-lime);
    font-size: 0.87rem;
    font-weight: 700;
    transition:
      background var(--transition),
      color var(--transition),
      transform var(--transition);
  }
  
  .privacy-contact-link:hover {
    background: var(--accent-lime);
    color: var(--bg-deep);
    transform: translateY(-2px);
  }
  
  .privacy-contact-link span {
    font-size: 1rem;
  }
  
  @media (max-width: 900px) {
    .privacy-hero {
      padding: 62px 0 55px;
    }
  
    .privacy-layout {
      grid-template-columns: 1fr;
      gap: 39px;
    }
  
    .privacy-nav {
      position: static;
      grid-template-columns: repeat(2, minmax(0, 1fr));
      gap: 3px 18px;
      padding: 15px 0 0;
      border-top: 1px solid var(--line);
      border-left: 0;
    }
  }
  
  @media (max-width: 640px) {
    .privacy-hero {
      padding: 48px 0 45px;
    }
  
    .back-link {
      margin-bottom: 33px;
    }
  
    .privacy-content-section {
      padding: 54px 0 74px;
    }
  
    .privacy-nav {
      grid-template-columns: 1fr;
    }
  
    .privacy-document section {
      padding-bottom: 34px;
      margin-bottom: 34px;
    }
  
    .privacy-document p,
    .privacy-document li {
      font-size: 0.87rem;
      line-height: 1.75;
    }
  
    .privacy-company-card {
      padding: 18px;
    }
  }
  
  @media (prefers-reduced-motion: reduce) {
    html {
      scroll-behavior: auto;
    }
  
    *,
    *::before,
    *::after {
      transition-duration: 0.01ms !important;
      animation-duration: 0.01ms !important;
      animation-iteration-count: 1 !important;
      scroll-behavior: auto !important;
    }
  }