/* Koch School — home motion styles (ported from approved prototype).
   Loaded only on the front page; replaces landing.css there. */

/* Topnav logo (theme header uses an <img>) */
.koch-topnav__logo img { display: block; width: auto; height: 30px; }

:root {
      --koch-primary: #111111;
      --koch-secondary: #ffffff;
      --koch-accent: #919396;
      --koch-card-dark: #161616;
      --koch-neutral-dark: #1e1e1e;
      --koch-neutral-medium: #919396;
      --koch-neutral-light: #f7f8fc;
      --koch-bg: #f7f8fc;
      --koch-border: #dfe0eb;
      --koch-gray-light: #c5c7cd;
      --koch-font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
      --koch-shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.2);
      --container: 1280px;
      --hero-image: url('../assets/hero-car.jpg');
      --interior-image: url('../assets/route-car.jpg');
      --ph-portrait: url('../assets/portrait.jpg');
      --ph-mentor: url('../assets/mentor.jpg');
      --ph-live: url('../assets/live.jpg');
      --ph-offline: url('../assets/offline.jpg');
      --ph-group: url('../assets/group.jpg');
      --ph-cert: url('../assets/cert.jpg');
      --ph-teach: url('../assets/teach.jpg');
      --ph-expo: url('../assets/expo.jpg');
      --ph-stage: url('../assets/stage.jpg');
      --ph-lab: url('../assets/lab.jpg');
      --ph-pro: url('../assets/pro.jpg');
      --ph-production: url('../assets/production.jpg');
    }

    * { box-sizing: border-box; }

    html {
      max-width: 100%;
      overflow-x: hidden;
      scroll-behavior: smooth;
      background: var(--koch-bg);
    }

    body {
      width: 100%;
      max-width: 100%;
      margin: 0;
      font-family: var(--koch-font-family);
      color: var(--koch-neutral-dark);
      background: var(--koch-bg);
      overflow-x: hidden;
    }

    a { color: inherit; text-decoration: none; }
    button { font: inherit; }

    .koch-container {
      max-width: var(--container);
      margin: 0 auto;
      padding: 0 40px;
    }

    .koch-btn {
      position: relative;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-height: 44px;
      padding: 0 26px;
      border: 1px solid transparent;
      border-radius: 999px;
      font-size: 14px;
      font-weight: 700;
      line-height: 1;
      white-space: nowrap;
      cursor: pointer;
      overflow: hidden;
      isolation: isolate;
      transition: transform 180ms ease, opacity 180ms ease, background 180ms ease, color 180ms ease, border-color 180ms ease;
    }

    .koch-btn::after {
      display: none;
    }

    .koch-btn:hover { transform: translateY(-2px); text-decoration: none; }
    .koch-btn:hover::after { transform: translateX(340%) skewX(-18deg); }
    .koch-btn:active { transform: translateY(0) scale(0.98); }
    .koch-btn:focus-visible { outline: 2px solid rgba(255,255,255,0.72); outline-offset: 3px; }

    .koch-btn--lg { min-height: 58px; padding: 0 40px; font-size: 15px; }
    .koch-btn--light { color: #111; background: #fff; }
    .koch-btn--dark { color: #fff; background: #111; }
    .koch-btn--ghost { color: #fff; background: rgba(0,0,0,0.28); border-color: rgba(255,255,255,0.38); }
    .koch-btn--muted { color: #fff; background: var(--koch-gray-light); }

    .koch-topnav {
      position: fixed;
      inset: 0 0 auto;
      z-index: 40;
      background: linear-gradient(180deg, rgba(17,17,17,0.86), rgba(17,17,17,0.42) 70%, transparent);
      backdrop-filter: blur(8px);
    }

    .koch-topnav__inner {
      max-width: 1600px;
      height: 80px;
      margin: 0 auto;
      padding: 0 40px;
      display: flex;
      align-items: center;
      gap: 32px;
    }

    .koch-topnav__logo {
      flex-shrink: 0;
      display: flex;
      align-items: center;
    }

    .koch-topnav__logo svg {
      display: block;
      width: auto;
      height: 30px;
    }

    .koch-topnav__nav {
      flex: 1;
      display: flex;
      justify-content: center;
      align-items: center;
      gap: 30px;
    }

    .koch-topnav__nav a {
      color: rgba(255,255,255,0.92);
      font-size: 13px;
      font-weight: 700;
      letter-spacing: 0.04em;
      text-transform: uppercase;
      transition: opacity 180ms ease, transform 180ms ease;
    }

    .koch-topnav__nav a:hover { opacity: 0.72; transform: translateY(-1px); }

    .koch-topnav__actions { display: flex; align-items: center; gap: 12px; flex-shrink: 0; }
    .koch-topnav__actions .koch-btn { min-height: 40px; padding: 0 22px; }

    .koch-hero {
      position: relative;
      min-height: 760px;
      padding: 120px 40px 0;
      color: #fff;
      overflow: visible;
      isolation: isolate;
      background: #111 var(--hero-image) center / cover no-repeat;
    }

    .koch-hero::before {
      content: "";
      position: absolute;
      inset: 0;
      z-index: -2;
      background:
        radial-gradient(circle at 54% 42%, rgba(255,255,255,0.12), transparent 22rem),
        linear-gradient(180deg, rgba(8,8,8,0.34) 0%, rgba(8,8,8,0.28) 44%, rgba(8,8,8,0.68) 100%),
        linear-gradient(90deg, rgba(0,0,0,0.46), rgba(0,0,0,0.10) 44%, rgba(0,0,0,0.24));
    }

    .koch-hero::after {
      content: "";
      position: absolute;
      left: 0;
      right: 0;
      bottom: 90px;
      height: 120px;
      z-index: -1;
      border-radius: 50%;
      border-top: 2px solid rgba(255,255,255,0.62);
      filter: drop-shadow(0 0 18px rgba(255,255,255,0.34));
      opacity: 0.55;
      transform: rotate(-5deg);
    }

    .detail-sweep {
      position: absolute;
      inset: 0;
      z-index: -1;
      pointer-events: none;
      overflow: hidden;
    }

    .detail-sweep span {
      position: absolute;
      width: 40%;
      height: 160%;
      top: -34%;
      left: -38%;
      background: linear-gradient(90deg, transparent, rgba(255,255,255,0.22), transparent);
      transform: rotate(19deg);
      filter: blur(10px);
      animation: towelSweep 7.5s cubic-bezier(.22,1,.36,1) infinite;
    }

    .koch-hero__inner {
      position: relative;
      z-index: 1;
      max-width: 1180px;
      min-height: 500px;
      margin: 0 auto;
      display: flex;
      align-items: center;
      justify-content: center;
      text-align: left;
    }

    .koch-hero__copy {
      width: 100%;
      min-width: 0;
      display: flex;
      flex-direction: column;
      align-items: center;
    }

    .koch-hero__eyebrow {
      max-width: 320px;
      margin: 0 0 34px auto;
      color: rgba(255,255,255,0.86);
      font-size: 13px;
      line-height: 1.55;
      text-align: right;
      text-shadow: 0 1px 2px rgba(0,0,0,0.85), 0 6px 22px rgba(0,0,0,0.7);
    }

    .koch-hero__title {
      display: grid;
      width: max-content;
      max-width: 100%;
      margin: 0 0 30px;
      color: #fff;
      font-weight: 800;
      line-height: 0.94;
      letter-spacing: -0.04em;
      text-align: left;
    }

    .koch-hero__title span { display: block; }

    .koch-hero__title-top {
      grid-column: 1;
      justify-self: start;
      margin-left: 0.06em;
      font-size: clamp(36px, 6vw, 82px);
      line-height: 1;
      letter-spacing: -0.02em;
    }

    .koch-hero__title-main {
      grid-column: 1;
      width: max-content;
      max-width: 100%;
      font-size: clamp(32px, 7.15vw, 122px);
      line-height: 0.92;
      letter-spacing: -0.05em;
      white-space: nowrap;
    }

    .koch-hero__title-bottom {
      grid-column: 1;
      justify-self: end;
      margin-top: 0.04em;
      font-size: clamp(36px, 6vw, 82px);
      line-height: 1;
      letter-spacing: -0.02em;
    }

    .koch-hero__subtitle {
      max-width: 760px;
      margin: 0 auto 32px;
      color: rgba(255,255,255,0.9);
      font-size: clamp(17px, 1.5vw, 21px);
      line-height: 1.5;
      text-align: center;
    }

    .koch-hero__actions { text-align: center; }

    .koch-hero__audiences {
      position: relative;
      z-index: 2;
      max-width: 1240px;
      margin: 6px auto 0;
      padding: 14px;
      display: flex;
      align-items: stretch;
      gap: 10px;
      transform: translateY(50%);
      perspective: 1100px;
      border: 1px solid rgba(255,255,255,0.15);
      border-radius: 30px;
      background:
        linear-gradient(135deg, rgba(255,255,255,0.22), rgba(255,255,255,0.07)),
        rgba(16,16,16,0.42);
      box-shadow:
        0 24px 70px rgba(0,0,0,0.28),
        inset 0 1px 0 rgba(255,255,255,0.22),
        inset 0 -1px 0 rgba(255,255,255,0.08);
      backdrop-filter: blur(22px) saturate(145%);
      -webkit-backdrop-filter: blur(22px) saturate(145%);
      overflow: hidden;
    }

    .koch-hero__audiences::before {
      content: "";
      position: absolute;
      inset: 0;
      z-index: 0;
      pointer-events: none;
      background:
        radial-gradient(circle at var(--dock-x, 50%) 50%, rgba(255,255,255,0.22), transparent 15rem),
        linear-gradient(90deg, transparent, rgba(255,255,255,0.1), transparent);
      opacity: 0.72;
    }

    .koch-hero__audiences::after {
      content: "";
      position: absolute;
      left: -18%;
      top: 0;
      bottom: 0;
      width: 18%;
      z-index: 1;
      pointer-events: none;
      background: linear-gradient(90deg, transparent, rgba(255,255,255,0.26), transparent);
      filter: blur(8px);
      transform: skewX(-18deg);
      animation: audienceTrack 5.4s cubic-bezier(.22,1,.36,1) infinite;
    }

    .koch-audience-card {
      position: relative;
      z-index: 2;
      flex: 1 1 0;
      min-width: 0;
      min-height: 108px;
      padding: 24px 18px;
      display: flex;
      align-items: center;
      justify-content: center;
      text-align: center;
      color: #fff;
      background: rgba(17,17,17,0.34);
      border: 1px solid rgba(255,255,255,0.08);
      border-radius: 22px;
      box-shadow: none;
      overflow: hidden;
      transform-style: preserve-3d;
      transition: transform 260ms ease, box-shadow 260ms ease, background 260ms ease, color 260ms ease, border-color 260ms ease;
    }

    .koch-audience-card::before {
      content: "";
      position: absolute;
      inset: 0;
      background:
        radial-gradient(circle at var(--mx, 50%) var(--my, 50%), rgba(255,255,255,0.3), transparent 7rem),
        linear-gradient(115deg, transparent 0 38%, rgba(255,255,255,0.12) 48%, transparent 58%);
      opacity: 0.28;
      transition: opacity 260ms ease;
    }

    .koch-audience-card:hover {
      color: #111;
      background: rgba(255,255,255,0.94);
      border-color: rgba(255,255,255,0.6);
      transform: translateY(-7px) scale(1.035);
      box-shadow: 0 20px 46px rgba(0,0,0,0.22);
    }

    .koch-audience-card:hover::before { opacity: 0.08; }

    .koch-audience-card span {
      position: relative;
      z-index: 1;
      font-size: 16px;
      font-weight: 700;
      line-height: 1.32;
      text-wrap: balance;
      transition: transform 260ms ease;
    }

    .koch-audience-card:hover span { transform: translateY(3px); }

    .koch-section { background: var(--koch-bg); }
    .koch-section--dark { color: #fff; background: #111; }

    .koch-features { padding: 150px 0 96px; }

    .section-head {
      display: flex;
      justify-content: space-between;
      align-items: flex-start;
      gap: 40px;
      margin-bottom: 56px;
    }

    .koch-section__title {
      max-width: 820px;
      margin: 0;
      color: #111;
      font-size: clamp(34px, 4.4vw, 54px);
      font-weight: 800;
      line-height: 1.08;
      letter-spacing: -0.025em;
      text-wrap: balance;
    }

    .koch-section__title--light { color: #fff; }

    .section-lead {
      max-width: 520px;
      margin: 0;
      color: rgba(30,30,30,0.68);
      font-size: 17px;
      line-height: 1.65;
    }

    .koch-partners {
      min-width: 260px;
      padding: 20px;
      border-radius: 18px;
      background: #fff;
      box-shadow: 0 10px 28px rgba(0,0,0,0.05);
    }

    .koch-partners__label {
      display: block;
      margin-bottom: 14px;
      color: var(--koch-neutral-medium);
      font-size: 12px;
      font-weight: 700;
      letter-spacing: 0.08em;
      text-transform: uppercase;
    }

    .koch-partners__logos { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; }
    .koch-partners__logos span { height: 36px; border-radius: 10px; background: #161616; }

    .koch-bento { display: grid; grid-template-columns: repeat(6, 1fr); gap: 18px; margin-top: 56px; perspective: 1200px; }

    .koch-bento__card {
      position: relative;
      min-height: 260px;
      padding: 30px;
      display: flex;
      flex-direction: column;
      color: #fff;
      background: #161616;
      border-radius: 24px;
      overflow: hidden;
      box-shadow: var(--koch-shadow-lg);
      isolation: isolate;
      will-change: transform;
    }

    .koch-bento__card--wide { grid-column: span 3; }
    .koch-bento__card--narrow { grid-column: span 2; }

    .koch-bento__card::before {
      content: "";
      position: absolute;
      inset: 0;
      z-index: -2;
      opacity: 0.42;
      background: var(--detail-bg, var(--ph-pro)) center / cover no-repeat;
      transform: scale(1.08);
      transition: transform 500ms ease, opacity 500ms ease;
    }

    .koch-bento__card::after {
      content: "";
      position: absolute;
      inset: 0;
      z-index: -1;
      background: linear-gradient(180deg, rgba(17,17,17,0.58), rgba(17,17,17,0.96));
    }

    .koch-bento__card:hover::before { opacity: 0.58; transform: scale(1.14); }

    .koch-bento__card h3 {
      max-width: 560px;
      margin: 0;
      min-height: 74px;
      color: #fff;
      font-size: clamp(22px, 2.4vw, 32px);
      font-weight: 800;
      line-height: 1.14;
      letter-spacing: -0.018em;
      text-wrap: balance;
    }

    .koch-bento__card p {
      max-width: 520px;
      margin: 24px 0 0;
      color: rgba(255,255,255,0.78);
      line-height: 1.65;
    }

    .koch-features__cta {
      display: flex;
      justify-content: center;
      margin-top: 34px;
    }

    .koch-catalog { padding: 100px 0 120px; }
    .koch-catalog__head { display: flex; justify-content: space-between; align-items: end; gap: 40px; margin-bottom: 44px; }

    .koch-catalog__grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }

    .koch-course-card {
      position: relative;
      min-height: 460px;
      display: flex;
      flex-direction: column;
      overflow: hidden;
      border-radius: 24px;
      background: #fff;
      box-shadow: 0 16px 42px rgba(0,0,0,0.08);
      transition: transform 220ms ease, box-shadow 220ms ease;
    }

    .koch-course-card:hover { transform: translateY(-8px); box-shadow: 0 26px 58px rgba(0,0,0,0.14); }

    .koch-course-card__image {
      min-height: 210px;
      background: var(--course-bg, var(--ph-mentor)) center / cover no-repeat;
      overflow: hidden;
    }

    .koch-course-card__image::after {
      content: "";
      display: block;
      height: 100%;
      width: 120%;
      background: linear-gradient(105deg, transparent 22%, rgba(255,255,255,0.36), transparent 58%);
      transform: translateX(-84%);
      transition: transform 620ms cubic-bezier(.22,1,.36,1);
    }

    .koch-course-card:hover .koch-course-card__image::after { transform: translateX(64%); }

    .koch-course-card__body { flex: 1; display: flex; flex-direction: column; padding: 26px; }
    .koch-course-card__title { margin: 0; color: #111; font-size: 22px; font-weight: 800; line-height: 1.18; letter-spacing: -0.015em; }
    .koch-course-card__text { margin: 16px 0 0; color: rgba(30,30,30,0.68); line-height: 1.6; }
    .koch-course-card__meta {
      margin-top: auto;
      padding-top: 26px;
      display: flex;
      align-items: flex-end;
      justify-content: space-between;
      gap: 18px;
    }
    .koch-course-card__price {
      color: rgba(17,17,17,0.74);
      font-size: 17px;
      font-weight: 600;
      letter-spacing: -0.01em;
      font-variant-numeric: tabular-nums;
    }
    .koch-course-card__cta { align-self: flex-end; }
    .koch-course-card__actions { display: flex; flex-wrap: wrap; gap: 10px; justify-content: flex-end; }
    .koch-course-card__actions .koch-btn--light { background: #fff; color: #111; border: 1px solid rgba(17,17,17,0.12); }
    .koch-catalog__more { margin-top: 46px; }
    .koch-catalog__more .koch-btn--muted { color: #fff; background: #111; box-shadow: 0 18px 42px rgba(0,0,0,0.18); }

    .koch-promo {
      position: relative;
      padding: 116px 0;
      color: #fff;
      background: #111 var(--ph-pro) center / cover fixed no-repeat;
      overflow: hidden;
    }

    .koch-promo::before {
      content: "";
      position: absolute;
      inset: 0;
      background: linear-gradient(90deg, rgba(17,17,17,0.9), rgba(17,17,17,0.66)), radial-gradient(circle at 22% 50%, rgba(255,255,255,0.12), transparent 18rem);
    }

    .koch-promo__grid { position: relative; display: grid; grid-template-columns: 1fr minmax(340px, 460px); gap: 64px; align-items: center; }
    .koch-promo__title { max-width: 720px; margin: 0; color: #fff; font-size: clamp(40px, 5.8vw, 78px); font-weight: 800; line-height: 1.02; letter-spacing: -0.035em; text-wrap: balance; }
    .koch-promo__lead { margin: 24px 0 0; color: rgba(255,255,255,0.82); font-size: 22px; }

    .koch-promo__badge {
      width: 230px;
      height: 230px;
      margin-top: 42px;
      display: grid;
      place-items: center;
      border-radius: 50%;
      background: rgba(255,255,255,0.96);
      color: #111;
      box-shadow: 0 30px 80px rgba(0,0,0,0.34);
      animation: softBadge 5s ease-in-out infinite;
    }

    .koch-promo__badge-value { font-size: 54px; font-weight: 800; letter-spacing: -0.06em; }

    .koch-promo__right {
      padding: 28px;
      border: 1px solid rgba(255,255,255,0.18);
      border-radius: 26px;
      background: rgba(17,17,17,0.58);
      backdrop-filter: blur(16px);
      box-shadow: 0 24px 70px rgba(0,0,0,0.34);
    }

    .koch-promo__panel { padding: 20px; border-radius: 18px; background: rgba(255,255,255,0.08); }
    .koch-promo__panel + .koch-promo__panel { margin-top: 14px; }
    .koch-promo__panel-label { display: block; margin-bottom: 10px; color: rgba(255,255,255,0.58); font-size: 12px; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; }
    .koch-promo__timer { font-size: clamp(28px, 4vw, 46px); font-weight: 800; font-variant-numeric: tabular-nums; letter-spacing: -0.04em; }
    .koch-promo__timer-units { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; color: rgba(255,255,255,0.56); font-size: 12px; }
    .koch-promo__package-row { display: flex; justify-content: space-between; gap: 20px; align-items: end; }
    .koch-promo__package-name { margin: 0; font-weight: 800; }
    .koch-promo__prices { text-align: right; font-variant-numeric: tabular-nums; }
    .koch-promo__price-old { display: block; color: rgba(255,255,255,0.44); text-decoration: line-through; }
    .koch-promo__price-new { display: block; color: #fff; font-size: 30px; font-weight: 800; }
    .koch-promo__cta { width: 100%; margin-top: 14px; }

    .koch-steps {
      position: relative;
      padding: 0;
      color: #fff;
      background: #111;
      overflow: hidden;
    }

    .koch-steps__stage { min-height: 100svh; display: grid; align-items: center; padding: 88px clamp(24px, 5vw, 104px); }
    .koch-steps__grid-wrap { max-width: 1780px; width: 100%; margin: 0 auto; display: grid; grid-template-columns: minmax(300px, 0.72fr) minmax(0, 1.4fr); gap: clamp(40px, 5vw, 96px); align-items: center; }
    .koch-steps .koch-section__title { max-width: 620px; font-size: clamp(56px, 7vw, 104px); line-height: 0.96; }
    .koch-steps__lead { max-width: 600px; margin: 30px 0 38px; color: rgba(255,255,255,0.72); font-size: clamp(18px, 1.5vw, 22px); line-height: 1.7; }

    .detail-route {
      position: relative;
      min-height: min(84vh, 820px);
      border-radius: 32px;
      overflow: hidden;
      background: #161616 var(--interior-image) center / cover no-repeat;
      box-shadow: 0 24px 70px rgba(0,0,0,0.38);
    }

    .detail-route::before { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, rgba(17,17,17,0.34), rgba(17,17,17,0.84)); }
    .detail-route svg { position: absolute; inset: 0; width: 100%; height: 100%; }
    .route-base { fill: none; stroke: rgba(255,255,255,0.2); stroke-width: 2; }
    .route-progress { fill: none; stroke: #fff; stroke-width: 5; stroke-linecap: round; filter: drop-shadow(0 0 16px rgba(255,255,255,0.58)); }

    .koch-step {
      position: absolute;
      width: min(320px, 38%);
      padding: 22px;
      color: #fff;
      border-radius: 18px;
      background: rgba(17,17,17,0.82);
      border: 1px solid rgba(255,255,255,0.16);
      backdrop-filter: blur(14px);
    }

    .koch-step:nth-of-type(1) { left: 4%; top: 7%; }
    .koch-step:nth-of-type(2) { right: 4%; top: 20%; }
    .koch-step:nth-of-type(3) { left: 7%; bottom: 20%; }
    .koch-step:nth-of-type(4) { right: 3%; bottom: 6%; }
    .koch-step__num { color: #fff; font-size: 34px; font-weight: 800; }
    .koch-step__text { margin: 12px 0 0; color: rgba(255,255,255,0.82); font-size: 16px; line-height: 1.45; }

    .koch-formats { padding: 110px 0; }
    .koch-formats__list { display: grid; gap: 22px; margin-top: 52px; }

    .koch-format {
      display: grid;
      grid-template-columns: minmax(0, 0.82fr) minmax(320px, 0.7fr);
      gap: 24px;
      min-height: 320px;
      padding: 24px;
      border-radius: 28px;
      background: #fff;
      box-shadow: 0 14px 38px rgba(0,0,0,0.06);
      overflow: hidden;
      will-change: transform;
    }

    .koch-format--reverse { grid-template-columns: minmax(320px, 0.7fr) minmax(0, 0.82fr); }
    .koch-format--reverse .koch-format__media { order: -1; }
    .koch-format__content { display: flex; flex-direction: column; justify-content: space-between; padding: clamp(18px, 3vw, 36px); }
    .koch-format__head { display: flex; justify-content: space-between; gap: 24px; align-items: start; }
    .koch-format__name { margin: 0; color: #111; font-size: clamp(28px, 4vw, 48px); font-weight: 800; line-height: 1.06; letter-spacing: -0.028em; text-wrap: balance; }
    .koch-format__index { color: rgba(17,17,17,0.18); font-size: 64px; font-weight: 800; letter-spacing: -0.06em; line-height: 1; }
    .koch-format__text { max-width: 560px; margin: 26px 0 0; color: rgba(30,30,30,0.64); font-size: 17px; line-height: 1.65; }
    .koch-format__media { min-height: 270px; border-radius: 22px; background: var(--format-bg, var(--ph-portrait)) center / cover no-repeat; overflow: hidden; }
    .koch-format__media::after { content: ""; display: block; height: 100%; background: linear-gradient(110deg, transparent, rgba(255,255,255,0.22), transparent); transform: translateX(-70%); }
    .koch-format:hover .koch-format__media::after { animation: imageGlide 1.2s ease forwards; }

    .koch-reviews { padding: 120px 0; color: #fff; background: #111; overflow: hidden; }
    .koch-reviews__head { display: flex; justify-content: space-between; align-items: end; gap: 36px; margin-bottom: 44px; }
    .koch-reviews__marquee {
      position: relative;
      width: 100vw;
      margin-left: calc(50% - 50vw);
      overflow: hidden;
      cursor: grab;
    }
    .koch-reviews__marquee:active { cursor: grabbing; }
    .koch-reviews__track {
      display: flex;
      width: max-content;
      animation: reviewsMarquee 60s linear infinite;
      will-change: transform;
    }
    .koch-reviews__marquee.is-paused .koch-reviews__track { animation-play-state: paused; }
    .koch-review { width: min(360px, 78vw); min-height: 280px; flex: 0 0 auto; margin-right: 18px; padding: 26px; border-radius: 22px; background: #161616; border: 1px solid rgba(255,255,255,0.08); }
    .koch-review__name { margin: 0; color: #fff; font-size: 22px; font-weight: 800; }
    .koch-review__role { margin: 8px 0 0; color: rgba(255,255,255,0.58); font-weight: 700; }
    .koch-review__text { margin: 42px 0 0; color: rgba(255,255,255,0.72); line-height: 1.65; }

    .koch-faq { padding: 110px 0; }
    .koch-faq__grid { display: grid; grid-template-columns: minmax(280px, 0.68fr) minmax(0, 1fr); gap: 70px; align-items: start; }
    .koch-faq__intro p { max-width: 440px; color: rgba(30,30,30,0.66); line-height: 1.65; }
    .koch-faq__list { display: grid; gap: 12px; }
    .koch-faq__item { border-radius: 18px; background: #fff; overflow: hidden; box-shadow: 0 10px 28px rgba(0,0,0,0.05); }
    .koch-faq__question { width: 100%; min-height: 76px; padding: 22px 24px; display: flex; justify-content: space-between; align-items: center; gap: 22px; color: #111; background: transparent; border: 0; font-weight: 800; text-align: left; cursor: pointer; }
    .koch-faq__icon { width: 30px; height: 30px; flex: 0 0 auto; display: grid; place-items: center; border-radius: 50%; color: #fff; background: #111; transition: transform 180ms ease; }
    .koch-faq__answer { max-height: 0; padding: 0 24px; overflow: hidden; color: rgba(30,30,30,0.66); line-height: 1.65; transition: max-height 260ms ease, padding 260ms ease; }
    .koch-faq__item.is-open .koch-faq__answer { max-height: 180px; padding: 0 24px 24px; }
    .koch-faq__item.is-open .koch-faq__icon { transform: rotate(45deg); }

    .koch-lead {
      padding: 40px 0 120px;
      background: var(--koch-bg);
    }

    .koch-lead__card {
      position: relative;
      min-height: 560px;
      display: grid;
      grid-template-columns: minmax(0, 1fr) minmax(360px, 440px);
      gap: clamp(32px, 5vw, 96px);
      align-items: center;
      padding: clamp(34px, 5vw, 76px);
      color: #fff;
      border-radius: 38px;
      background:
        radial-gradient(circle at 82% 16%, rgba(255,255,255,0.16), transparent 20rem),
        linear-gradient(135deg, #111 0%, #171717 52%, #262626 100%);
      box-shadow: 0 30px 90px rgba(0,0,0,0.24);
      overflow: hidden;
      isolation: isolate;
    }

    .koch-lead__content { position: relative; z-index: 3; max-width: 500px; }

    .koch-lead__card::before {
      content: "";
      position: absolute;
      inset: auto -12% -28% 40%;
      height: 72%;
      z-index: 0;
      border-radius: 999px;
      background: radial-gradient(circle, rgba(255,255,255,0.22), transparent 64%);
      filter: blur(22px);
    }

    .koch-lead__eyebrow {
      margin: 0 0 18px;
      color: rgba(255,255,255,0.56);
      font-size: 12px;
      font-weight: 800;
      letter-spacing: 0.12em;
      text-transform: uppercase;
    }

    .koch-lead__title {
      max-width: 620px;
      margin: 0;
      color: #fff;
      font-size: clamp(36px, 3.8vw, 58px);
      font-weight: 800;
      line-height: 1.05;
      letter-spacing: -0.035em;
      text-wrap: balance;
    }

    .koch-lead__text {
      max-width: 520px;
      margin: 24px 0 0;
      color: rgba(255,255,255,0.7);
      font-size: 18px;
      line-height: 1.7;
    }

    .koch-lead__form {
      position: relative;
      z-index: 4;
      display: grid;
      gap: 14px;
      padding: 22px;
      border: 1px solid rgba(255,255,255,0.16);
      border-radius: 26px;
      background: rgba(255,255,255,0.08);
      backdrop-filter: blur(18px);
      -webkit-backdrop-filter: blur(18px);
      box-shadow: 0 22px 70px rgba(0,0,0,0.28);
    }

    .koch-lead__form label { display: grid; gap: 8px; color: rgba(255,255,255,0.58); font-size: 12px; font-weight: 800; letter-spacing: 0.08em; text-transform: uppercase; }
    .koch-lead__form input,
    .koch-lead__form textarea {
      width: 100%;
      border: 1px solid rgba(255,255,255,0.16);
      border-radius: 16px;
      padding: 15px 16px;
      color: #fff;
      background: rgba(17,17,17,0.58);
      font: inherit;
      outline: none;
    }
    .koch-lead__form textarea { resize: vertical; min-height: 112px; }
    .koch-lead__form input::placeholder,
    .koch-lead__form textarea::placeholder { color: rgba(255,255,255,0.36); }
    .koch-lead__form-status {
      margin: 2px 0 0;
      color: rgba(255,255,255,0.78);
      font-size: 14px;
      line-height: 1.45;
    }
    .koch-lead__form.is-sent { border-color: rgba(255,255,255,0.34); }

    .koch-lead__model {
      position: absolute;
      bottom: 0;
      left: 45%;
      width: min(520px, 39vw);
      z-index: 2;
      pointer-events: none;
      transform: translateX(-48%);
      filter: drop-shadow(0 26px 54px rgba(0,0,0,0.5));
      -webkit-mask-image: linear-gradient(#000 90%, transparent);
      mask-image: linear-gradient(#000 90%, transparent);
    }
    .koch-lead__model img { display: block; width: 100%; height: auto; }

    .prototype-note { padding: 36px 0; color: rgba(255,255,255,0.62); background: #111; font-size: 13px; }
    .prototype-note__inner { display: flex; justify-content: space-between; gap: 24px; }

    .reveal { opacity: 0; transform: translateY(28px); }

    @keyframes towelSweep { 0%, 100% { transform: translateX(0) rotate(19deg); opacity: 0; } 18% { opacity: .72; } 56% { transform: translateX(330%) rotate(19deg); opacity: .18; } }
    @keyframes audienceTrack { 0%, 100% { transform: translateX(0) skewX(-18deg); opacity: 0; } 16% { opacity: 0.85; } 62% { transform: translateX(760%) skewX(-18deg); opacity: 0.68; } 82% { opacity: 0; } }
    @keyframes imageGlide { to { transform: translateX(62%); } }
    @keyframes softBadge { 0%, 100% { transform: translateY(0) rotate(-3deg); } 50% { transform: translateY(-10px) rotate(3deg); } }
    /* Track holds 4 identical copies; move exactly one copy (-25%) for a seamless loop. */
    @keyframes reviewsMarquee { to { transform: translateX(-25%); } }

    @media (max-width: 1120px) {
      .koch-topnav__nav { display: none; }
      .koch-topnav__inner { justify-content: space-between; }
      .koch-promo__grid, .koch-steps__grid-wrap, .koch-faq__grid { grid-template-columns: 1fr; }
      .section-head, .koch-catalog__head, .koch-reviews__head { flex-direction: column; align-items: flex-start; }
      .koch-hero__audiences {
        max-width: calc(100% - 48px);
        gap: 5px;
      }
      .koch-audience-card {
        min-height: 76px;
        padding: 16px 10px;
      }
      .koch-audience-card span {
        font-size: 13px;
      }
      .koch-catalog__grid { grid-template-columns: repeat(2, 1fr); }
      .koch-bento__card--wide, .koch-bento__card--narrow { grid-column: span 3; }
      .koch-format, .koch-format--reverse { grid-template-columns: 1fr; }
      .koch-format--reverse .koch-format__media { order: 0; }
      .koch-lead__card { grid-template-columns: minmax(0, 1fr) minmax(300px, 380px); gap: 28px; }
      .koch-lead__model { width: min(400px, 36vw); transform: translateX(-56%); opacity: 0.95; }
    }

    @media (max-width: 720px) {
      html,
      body {
        position: relative;
        width: 100%;
        max-width: 100%;
        overflow-x: clip;
      }
      .koch-container { padding: 0 20px; }
      .koch-topnav__inner { height: 66px; padding: 0 18px; }
      .koch-topnav__logo svg { height: 24px; }
      .koch-topnav__logo img { height: 24px; }
      .koch-topnav__actions { display: none; }
      .koch-hero { min-height: 760px; padding: 96px 20px 0; overflow: hidden; }
      .koch-hero__inner { min-height: auto; }
      .koch-hero__eyebrow { max-width: 100%; margin: 0 auto 28px; text-align: center; }
      .koch-hero__title { max-width: 100%; line-height: 0.98; }
      .koch-hero__title-top { font-size: clamp(22px, 6.6vw, 34px); }
      .koch-hero__title-main { font-size: clamp(28px, 9.2vw, 46px); }
      .koch-hero__title-bottom { font-size: clamp(22px, 6.6vw, 34px); }
      .koch-hero__subtitle { max-width: 100%; font-size: 16px; }
      .koch-hero__actions { display: grid; gap: 12px; }
      .koch-hero__actions .koch-btn { width: 100%; }
      .koch-hero__audiences {
        max-width: calc(100% - 40px);
        padding: 8px;
        display: grid;
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 8px;
        transform: translateY(18%);
      }
      .koch-hero__audiences::before,
      .koch-hero__audiences::after { display: none; }
      .koch-audience-card {
        min-height: 64px;
        padding: 14px 18px;
        border-radius: 18px;
      }
      .koch-audience-card span {
        font-size: 12px;
      }
      .koch-features { padding-top: 250px; overflow: hidden; }
      .koch-bento { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; overflow: hidden; }
      .koch-bento__card--wide, .koch-bento__card--narrow { grid-column: auto; }
      .koch-bento__card { min-width: 0; min-height: 190px; padding: 14px; border-radius: 20px; }
      .koch-bento__card h3 { min-height: auto; font-size: clamp(17px, 4.8vw, 22px); }
      .koch-bento__card p { margin-top: 12px; font-size: 12px; line-height: 1.4; }
      .koch-catalog { padding: 74px 0 88px; overflow: hidden; }
      .koch-catalog__head { gap: 18px; margin-bottom: 28px; }
      .koch-catalog__grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }
      .koch-course-card { min-width: 0; min-height: auto; border-radius: 18px; box-shadow: 0 10px 24px rgba(0,0,0,0.07); }
      .koch-course-card__image { min-height: 96px; }
      .koch-course-card__body { padding: 12px; }
      .koch-course-card__title { font-size: 14px; line-height: 1.18; letter-spacing: -0.01em; }
      .koch-course-card__text { margin-top: 8px; font-size: 11px; line-height: 1.35; }
      .koch-course-card__meta { align-items: flex-start; flex-direction: column; gap: 10px; padding-top: 14px; }
      .koch-course-card__price { font-size: 12px; }
      .koch-course-card__actions { width: 100%; display: grid; grid-template-columns: 1fr; gap: 7px; justify-content: stretch; }
      .koch-course-card__actions .koch-btn { width: 100%; min-height: 34px; padding: 0 8px; font-size: 11px; }
      .koch-catalog__more { margin-top: 28px; }
      .koch-section__title { font-size: clamp(30px, 10vw, 42px); }
      .koch-promo__title { font-size: clamp(34px, 11vw, 48px); }
      .koch-promo__right { padding: 18px; }
      .koch-promo__badge { width: 170px; height: 170px; }
      .koch-promo__badge-value { font-size: 42px; }
      .koch-steps { overflow: hidden; }
      .koch-steps__stage { min-height: auto; padding: 70px 20px; }
      .koch-steps__grid-wrap { gap: 26px; }
      .koch-steps .koch-section__title { font-size: clamp(44px, 15vw, 66px); }
      .koch-steps__lead { margin: 22px 0 28px; font-size: 18px; line-height: 1.55; }
      .detail-route {
        min-height: auto;
        display: grid;
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 10px;
        padding: 12px;
        border-radius: 24px;
        background-position: center;
      }
      .detail-route::before { background: rgba(17,17,17,0.64); }
      .detail-route svg { display: none; }
      .route-progress { stroke-dashoffset: 0 !important; }
      .koch-step {
        position: relative;
        inset: auto !important;
        width: auto;
        min-width: 0;
        min-height: 132px;
        padding: 14px;
        opacity: 1 !important;
        transform: none !important;
        border-radius: 18px;
      }
      .koch-step__num { font-size: 27px; }
      .koch-step__text { margin-top: 8px; font-size: 12px; line-height: 1.35; }
      .koch-format { padding: 14px; }
      .koch-reviews { padding: 74px 0; overflow: hidden; }
      .koch-reviews__head { margin-bottom: 28px; }
      .koch-reviews__marquee {
        width: 100%;
        margin-left: 0;
        overflow: hidden;
        cursor: default;
      }
      .koch-reviews__track {
        width: 100%;
        display: grid;
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 10px;
        animation: none;
        transform: none !important;
      }
      .koch-review {
        width: auto;
        min-width: 0;
        min-height: 170px;
        margin-right: 0;
        padding: 16px;
        border-radius: 18px;
      }
      .koch-review:nth-child(n+5) { display: none; }
      .koch-review__name { font-size: 17px; }
      .koch-review__role { font-size: 12px; line-height: 1.35; }
      .koch-review__text { margin-top: 22px; font-size: 12px; line-height: 1.45; }
      .koch-lead { padding-bottom: 70px; }
      .koch-lead__card { min-height: auto; padding: 28px; border-radius: 28px; grid-template-columns: 1fr; gap: 26px; }
      .koch-lead__model { display: none; }
      .koch-lead__title { font-size: clamp(34px, 11vw, 48px); }
      .prototype-note__inner { flex-direction: column; }
    }

    @media (prefers-reduced-motion: reduce) {
      *, *::before, *::after { animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; scroll-behavior: auto !important; }
      .reveal { opacity: 1; transform: none; }
    }

/* ------------------------------------------------------------------ */
/* Landing footer (from legacy landing.css)                           */
/* ------------------------------------------------------------------ */
.koch-landing-footer {
  background: #111111;
  color: rgba(255, 255, 255, 0.75);
  padding: 60px 0 40px;
}

.koch-landing-footer__grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
  margin-bottom: 24px;
}

.koch-landing-footer__col h4 {
  color: #ffffff;
  font-size: 14px;
  font-weight: 600;
  margin: 0 0 16px;
}

.koch-landing-footer__links {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.koch-landing-footer__links a {
  color: rgba(255, 255, 255, 0.75);
  text-decoration: none;
  font-size: 14px;
}

.koch-landing-footer__links a:hover {
  color: #ffffff;
}

.koch-landing-footer__phone {
  display: block;
  font-size: 32px;
  font-weight: 700;
  color: #ffffff;
  text-decoration: none;
  margin-bottom: 8px;
}

.koch-landing-footer__email {
  display: block;
  font-size: 24px;
  color: #ffffff;
  text-decoration: none;
  margin-bottom: 20px;
}

.koch-landing-footer__hours {
  font-size: 13px;
  line-height: 1.5;
  margin: 0;
}

.koch-landing-footer__social {
  display: flex;
  gap: 12px;
  margin-top: 16px;
}

.koch-landing-footer__social a {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #ffffff;
  text-decoration: none;
  font-size: 12px;
}

.koch-landing-footer__logo img {
  height: 30px;
  width: auto;
  margin-top: 24px;
}

.koch-landing-footer__bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
  font-size: 13px;
}

.koch-landing-footer__legal {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
}

.koch-landing-footer__legal a {
  color: rgba(255, 255, 255, 0.55);
  text-decoration: none;
}