/* =============================================
   CSS VARIABLES — Design System
   ============================================= */
:root {
  /* Colors */
  --color-bg: #0d0d0f;
  --color-surface: #161618;
  --color-accent: #0070c0;
  --color-accent-hover: #005ea3;
  --color-text: #ffffff;
  --color-text-secondary: rgba(255, 255, 255, 0.55);
  --color-border: rgba(255, 255, 255, 0.07);

  /* Typography */
  --font-primary: 'Inter', system-ui, -apple-system, sans-serif;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --line-height-base: 1.6;

  /* Spacing */
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 32px;
  --space-2xl: 48px;
  --space-3xl: 64px;

  /* Border radius */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-pill: 999px;

  /* Layout */
  --container-max: 1280px;
  --container-px: clamp(16px, 4vw, 32px);

  /* Header */
  --header-height: 72px;
  --header-bg: rgba(13, 13, 15, 0.80);
  --header-blur: 14px;

  /* Transitions */
  --transition-fast: 0.15s ease;
  --transition-base: 0.25s ease;
}


/* =============================================
   BASE
   ============================================= */
html {
  scroll-behavior: smooth;
  scrollbar-color: var(--color-surface) var(--color-bg);
}

body {
  background-color: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-primary);
  font-size: var(--font-size-base);
  line-height: var(--line-height-base);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

img,
svg {
  display: block;
  max-width: 100%;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* Skip navigation link — visible only on keyboard focus */
.skip-link {
  position: fixed;
  top: calc(-1 * var(--header-height) - 10px);
  left: var(--space-md);
  z-index: 9999;
  padding: var(--space-sm) var(--space-md);
  background: var(--color-accent);
  color: #fff;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: var(--font-size-sm);
  text-decoration: none;
  transition: top var(--transition-fast);
}

.skip-link:focus {
  top: var(--space-sm);
  outline: 2px solid #fff;
  outline-offset: 2px;
}


/* =============================================
   LAYOUT — Container
   ============================================= */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-px);
}


/* =============================================
   COMPONENT — Button
   ============================================= */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: 10px 22px;
  border-radius: var(--radius-pill);
  font-family: var(--font-primary);
  font-size: var(--font-size-sm);
  font-weight: 600;
  line-height: 1;
  white-space: nowrap;
  cursor: pointer;
  border: none;
  text-decoration: none;
  transition:
    background-color var(--transition-fast),
    box-shadow var(--transition-fast),
    transform var(--transition-fast);
}

.btn--accent {
  background-color: var(--color-accent);
  color: #fff;
}

.btn--accent:hover {
  background-color: var(--color-accent-hover);
  box-shadow: 0 4px 20px rgba(0, 112, 192, 0.35);
}

.btn--accent:active {
  transform: scale(0.98);
}

.btn--accent:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
}


/* =============================================
   SECTION — Header
   ============================================= */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  width: 100%;
  height: var(--header-height);
  background-color: var(--header-bg);
  backdrop-filter: blur(var(--header-blur));
  -webkit-backdrop-filter: blur(var(--header-blur));
  border-bottom: 1px solid var(--color-border);
  transition: box-shadow var(--transition-base);
}

.header.is-scrolled {
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
}

.header__inner {
  display: flex;
  align-items: center;
  height: var(--header-height);
  gap: var(--space-xl);
}

/* Logo */
.header__logo {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  transition: opacity var(--transition-fast);
}

.header__logo:hover {
  opacity: 0.85;
}

.header__logo img {
  height: 41px;
  width: auto;
}

/* Nav */
.header__nav {
  flex: 1;
  display: flex;
  justify-content: center;
}

.header__nav-list {
  display: flex;
  align-items: center;
  gap: var(--space-xl);
  list-style: none;
  margin: 0;
  padding: 0;
}

.header__nav-link {
  color: var(--color-text-secondary);
  font-size: 1rem;
  font-weight: 500;
  white-space: nowrap;
  padding: 4px 0;
  position: relative;
  transition: color var(--transition-fast);
}

.header__nav-link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--color-accent);
  border-radius: 2px;
  transition: width var(--transition-base);
}

.header__nav-link:hover {
  color: var(--color-text);
}

.header__nav-link.is-active {
  color: var(--color-text);
}

.header__nav-link.is-active::after,
.header__nav-link:hover::after {
  width: 100%;
}

.header__nav-link:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 4px;
  border-radius: 2px;
}

/* CTA Button */
.header__btn {
  flex-shrink: 0;
  font-size: 1rem;
}

/* Burger button */
.header__burger {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  flex-shrink: 0;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
  margin-left: auto;
  border-radius: var(--radius-sm);
  transition: background-color var(--transition-fast);
}

.header__burger:hover {
  background-color: rgba(255, 255, 255, 0.06);
}

.header__burger:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

.burger__line {
  display: block;
  width: 22px;
  height: 2px;
  background-color: var(--color-text);
  border-radius: 2px;
  transition:
    transform var(--transition-base),
    opacity var(--transition-base);
}

/* Burger → X animation */
.header__burger[aria-expanded="true"] .burger__line:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.header__burger[aria-expanded="true"] .burger__line:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}

.header__burger[aria-expanded="true"] .burger__line:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}


/* =============================================
   SECTION — Hero
   ============================================= */
.hero {
  position: relative;
  overflow: hidden;
  min-height: calc(100vh - var(--header-height));
  display: flex;
  align-items: center;
  justify-content: center;
  background-image: url('../assets/img/main_block_background.webp');
  background-size: cover;
  background-position: center center;
  background-repeat: no-repeat;
  background-attachment: scroll;
  text-align: center;
  padding-block: var(--space-3xl);
}

.hero > .container {
  position: relative;
  z-index: 1;
}

.hero__lines {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 0;
}

@media (max-width: 767px) {
  .hero__lines {
    display: none;
  }
}

.hero__content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-lg);
  max-width: 860px;
  margin-inline: auto;
  text-align: center;
  width: 100%;
}

.hero__title {
  margin: 0;
  font-size: clamp(2.25rem, 5.5vw, 4.5rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--color-text);
}

.hero__title-accent {
  color: var(--color-accent);
}

.hero__subtitle {
  margin: 0;
  font-size: clamp(1rem, 1.8vw, 1.2rem);
  font-weight: 400;
  line-height: 1.7;
  color: var(--color-text-secondary);
  max-width: 620px;
}


/* =============================================
   Anchor offset — sticky header compensation
   ============================================= */
main > section {
  scroll-margin-top: var(--header-height);
}


/* =============================================
   SECTION — About
   ============================================= */
.about {
  min-height: calc(100vh - var(--header-height));
  display: flex;
  align-items: center;
  padding-block: 24px;
  background-image:
    linear-gradient(rgba(0, 0, 0, 0.5), rgba(0, 0, 0, 0.5)),
    url('../assets/img/about_block_background.webp');
  background-size: cover;
  background-position: center center;
  background-repeat: no-repeat;
}

.about > .container {
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.about__head {
  max-width: 880px;
}

.about__title {
  margin: 0 0 10px;
  font-size: clamp(1.75rem, 3.8vw, 3rem);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: 0.005em;
  color: var(--color-text);
}

.about__lead {
  margin: 0;
  max-width: 640px;
  font-size: clamp(0.875rem, 1.1vw, 1rem);
  line-height: 1.5;
  color: var(--color-text-secondary);
}

.about__lead strong {
  color: var(--color-text);
  font-weight: 500;
}

/* Grid: mobile-first — одна колонка */
.about__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

/* Card — общий вид */
.about-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: clamp(16px, 1.8vw, 24px);
  border-radius: 18px;
  background: rgba(8, 10, 22, 0.72);
  border: 1px solid rgba(255, 255, 255, 0.12);
  overflow: hidden;
  isolation: isolate;
}

/* Строка: иконка + заголовок */
.about-card__header {
  display: flex;
  align-items: center;
  gap: 14px;
}

.about-card__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 46px;
  height: 46px;
  border-radius: 11px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.08);
  flex-shrink: 0;
}

.about-card__icon svg {
  width: 22px;
  height: 22px;
}

.about-card__title {
  margin: 0;
  font-size: clamp(1rem, 1.5vw, 1.25rem);
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-text);
}

/* Тело: текст слева, картинка справа — 50/50 */
.about-card__body {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  flex: 1;
  min-height: 0;
}

.about-card__text {
  margin: 0;
  font-size: clamp(0.875rem, 0.95vw, 0.9375rem);
  line-height: 1.6;
  color: var(--color-text-secondary);
  align-self: start;
}

.about-card__media {
  position: relative;
  border-radius: 12px;
  border: 1px dashed rgba(255, 255, 255, 0.07);
  min-height: 100px;
}

.about-card__media:has(img) {
  border: none;
  background: none;
}

/* Картинка абсолютно заполняет блок — не влияет на его размер */
.about-card__media-img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: contain;
  mix-blend-mode: screen;
}

/* TSLab и System: картинка на всю высоту карточки, от центра до правого края */
.about-card--tslab .about-card__media,
.about-card--system .about-card__media {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  width: 50%;
  min-height: unset;
  border: none;
}

.about-card--system .about-card__media-img {
  transform: scale(1.3) translateX(-20%) translateY(5%);
  transform-origin: center center;
}


/* Card — тонкие акцентные glow-градиенты */
.about-card--launch {
  background:
    radial-gradient(ellipse 70% 50% at 50% 100%, rgba(0, 112, 192, 0.28), transparent),
    rgba(8, 10, 22, 0.72);
}

.about-card--launch .about-card__icon {
  color: #6bb6ff;
  background: rgba(88, 170, 255, 0.12);
  border-color: rgba(88, 170, 255, 0.20);
}

.about-card--tslab {
  background:
    radial-gradient(ellipse 70% 60% at 100% 100%, rgba(130, 80, 230, 0.30), transparent),
    rgba(8, 10, 22, 0.72);
}

.about-card--tslab .about-card__icon {
  color: #c0a5ff;
  background: rgba(180, 140, 255, 0.12);
  border-color: rgba(180, 140, 255, 0.20);
}

.about-card--system {
  background:
    radial-gradient(ellipse 70% 60% at 100% 100%, rgba(30, 190, 155, 0.30), transparent),
    rgba(8, 10, 22, 0.72);
}

.about-card--system .about-card__icon {
  color: #6ee7c8;
  background: rgba(74, 218, 189, 0.12);
  border-color: rgba(74, 218, 189, 0.22);
}

/* Tablet */
@media (min-width: 768px) {
  .about__grid {
    grid-template-columns: 1fr 1fr;
    gap: 16px;
  }
}

/* Desktop — левая карточка во всю высоту сетки */
@media (min-width: 1024px) {
  .about__grid {
    grid-template-columns: 0.92fr 1.23fr;
    grid-template-rows: 1fr 1fr;
    gap: 18px;
  }

  /* Launch занимает обе строки левой колонки */
  .about-card--launch {
    grid-column: 1;
    grid-row: 1 / span 2;
  }

  /* Тело launch: flex-колонка — текст сверху, картинка снизу */
  .about-card--launch .about-card__body {
    display: flex;
    flex-direction: column;
    flex: 1;
    min-height: 0;
  }

  /* Медиа launch растягивается на оставшееся пространство */
  .about-card--launch .about-card__media {
    flex: 1;
    min-height: 0;
    border: none;
    overflow: visible;
  }

  /* Картинка немного увеличена от нижнего центра */
  .about-card--launch .about-card__media-img {
    object-position: center bottom;
    transform: scale(1.1);
    transform-origin: center bottom;
  }
}


/* =============================================
   SECTION — Audience
   ============================================= */
.audience {
  min-height: calc(100vh - var(--header-height));
  display: flex;
  align-items: center;
  padding-block: var(--space-3xl);
  background-image:
    linear-gradient(rgba(0, 0, 0, 0.55), rgba(0, 0, 0, 0.55)),
    url('../assets/img/for_whome_background.webp');
  background-size: cover;
  background-position: center center;
  background-repeat: no-repeat;
}

.audience > .container {
  width: 100%;
}

.audience__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-3xl);
  align-items: start;
}

/* Left column */
.audience__title {
  margin: 0 0 var(--space-xl);
  font-size: clamp(1.75rem, 3.8vw, 3rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: 0.01em;
  color: var(--color-text);
}

.audience__lead-wrap {
  display: flex;
  gap: var(--space-md);
  align-items: stretch;
}

.audience__lead-bar {
  width: 3px;
  flex-shrink: 0;
  border-radius: 2px;
  background: var(--color-accent);
}

.audience__lead {
  margin: 0;
  font-size: clamp(0.875rem, 1.1vw, 1rem);
  line-height: 1.65;
  color: var(--color-text-secondary);
}

.audience__media-single {
  margin-top: var(--space-2xl);
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 260px;
}

.audience__media-single__img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  object-position: top center;
}

/* Right column — cards */
.audience__cards {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

/* Base card */
.audience-card {
  border-radius: 14px;
  padding: 14px var(--space-xl);
  border: 1px solid;
  position: relative;
  overflow: hidden;
  isolation: isolate;
  transition: box-shadow var(--transition-base);
}

.audience-card__header {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.audience-card__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  flex-shrink: 0;
  border-radius: 10px;
  border: 1px solid;
}

.audience-card__icon svg {
  width: 22px;
  height: 22px;
}

.audience-card__title {
  flex: 1;
  margin: 0;
  font-size: clamp(1rem, 1.5vw, 1.25rem);
  font-weight: 600;
  line-height: 1.3;
  color: var(--color-text);
}


.audience-card__text {
  margin: calc(var(--space-md) / 2) 0 0 calc(44px + var(--space-md));
  font-size: clamp(0.875rem, 0.95vw, 0.9375rem);
  line-height: 1.65;
  color: var(--color-text-secondary);
}

/* ── Card themes ── */

/* Blue */
.audience-card--blue {
  border-color: rgba(0, 140, 255, 0.35);
  background:
    radial-gradient(ellipse 90% 55% at 50% 100%, rgba(0, 120, 255, 0.2), transparent),
    rgba(8, 10, 22, 0.75);
  box-shadow:
    0 0 0 1px rgba(0, 140, 255, 0.12),
    0 0 28px rgba(0, 120, 255, 0.08);
}

.audience-card--blue:hover {
  box-shadow:
    0 0 0 1px rgba(0, 140, 255, 0.25),
    0 0 36px rgba(0, 120, 255, 0.15);
}

.audience-card--blue .audience-card__icon {
  color: #6bb6ff;
  background: rgba(88, 170, 255, 0.12);
  border-color: rgba(88, 170, 255, 0.22);
}

/* Purple */
.audience-card--purple {
  border-color: rgba(130, 80, 230, 0.35);
  background:
    radial-gradient(ellipse 90% 55% at 50% 100%, rgba(130, 80, 230, 0.2), transparent),
    rgba(8, 10, 22, 0.75);
  box-shadow:
    0 0 0 1px rgba(130, 80, 230, 0.12),
    0 0 28px rgba(130, 80, 230, 0.08);
}

.audience-card--purple:hover {
  box-shadow:
    0 0 0 1px rgba(130, 80, 230, 0.28),
    0 0 36px rgba(130, 80, 230, 0.15);
}

.audience-card--purple .audience-card__icon {
  color: #c0a5ff;
  background: rgba(180, 140, 255, 0.12);
  border-color: rgba(180, 140, 255, 0.22);
}

/* Green */
.audience-card--green {
  border-color: rgba(30, 190, 155, 0.35);
  background:
    radial-gradient(ellipse 90% 55% at 50% 100%, rgba(30, 190, 155, 0.2), transparent),
    rgba(8, 10, 22, 0.75);
  box-shadow:
    0 0 0 1px rgba(30, 190, 155, 0.12),
    0 0 28px rgba(30, 190, 155, 0.08);
}

.audience-card--green:hover {
  box-shadow:
    0 0 0 1px rgba(30, 190, 155, 0.28),
    0 0 36px rgba(30, 190, 155, 0.15);
}

.audience-card--green .audience-card__icon {
  color: #6ee7c8;
  background: rgba(74, 218, 189, 0.12);
  border-color: rgba(74, 218, 189, 0.24);
}

/* Orange */
.audience-card--orange {
  border-color: rgba(220, 130, 30, 0.35);
  background:
    radial-gradient(ellipse 90% 55% at 50% 100%, rgba(220, 130, 30, 0.2), transparent),
    rgba(8, 10, 22, 0.75);
  box-shadow:
    0 0 0 1px rgba(220, 130, 30, 0.12),
    0 0 28px rgba(220, 130, 30, 0.08);
}

.audience-card--orange:hover {
  box-shadow:
    0 0 0 1px rgba(220, 130, 30, 0.28),
    0 0 36px rgba(220, 130, 30, 0.15);
}

.audience-card--orange .audience-card__icon {
  color: #ffb366;
  background: rgba(255, 160, 60, 0.12);
  border-color: rgba(255, 160, 60, 0.22);
}

/* Desktop: side-by-side layout */
@media (min-width: 900px) {
  .audience__inner {
    grid-template-columns: 40% 1fr;
    align-items: stretch;
  }

  .audience__left {
    display: flex;
    flex-direction: column;
  }

  .audience__media-single {
    flex: 1;
    min-height: 0;
    margin-top: var(--space-lg);
    align-items: flex-start;
  }
}

@media (max-width: 899px) {
  .audience__media-single {
    display: none;
  }
}

/* Mobile: remove text indent under icon */
@media (max-width: 600px) {
  .audience-card__text {
    margin-left: 0;
  }

  .audience-card {
    padding: 10px var(--space-lg);
  }
}


/* =============================================
   SECTION — Process
   ============================================= */
.process {
  min-height: calc(100vh - var(--header-height));
  display: flex;
  align-items: center;
  padding-block: clamp(48px, 8vw, 100px);
  background-image:
    linear-gradient(rgba(0, 0, 0, 0.50), rgba(0, 0, 0, 0.50)),
    url('../assets/img/process_background.webp');
  background-size: cover;
  background-position: center center;
  background-repeat: no-repeat;
}

.process > .container {
  width: 100%;
}

.process__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-3xl);
  align-items: start;
}

/* Title */
.process__title {
  margin: 0 0 var(--space-xl);
  font-size: clamp(1.75rem, 3.8vw, 3rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: 0.01em;
  color: var(--color-text);
}

/* Left cards list */
.process__cards {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

/* ── Process card (left 4) ── */
.process-card {
  border-radius: 14px;
  padding: 14px var(--space-xl);
  border: 1px solid;
  position: relative;
  overflow: hidden;
  isolation: isolate;
  transition: box-shadow var(--transition-base);
}

.process-card__header {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.process-card__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  flex-shrink: 0;
  border-radius: 10px;
  border: 1px solid;
}

.process-card__icon svg {
  width: 22px;
  height: 22px;
}

.process-card__title {
  flex: 1;
  margin: 0;
  font-size: clamp(1rem, 1.5vw, 1.15rem);
  font-weight: 600;
  line-height: 1.3;
  color: var(--color-text);
}

.process-card__text {
  margin: calc(var(--space-md) / 2) 0 0 calc(44px + var(--space-md));
  font-size: clamp(0.875rem, 0.95vw, 0.9375rem);
  line-height: 1.65;
  color: var(--color-text-secondary);
}

/* Card colour themes */
.process-card--blue {
  border-color: rgba(0, 140, 255, 0.35);
  background:
    radial-gradient(ellipse 90% 55% at 50% 100%, rgba(0, 120, 255, 0.2), transparent),
    rgba(8, 10, 22, 0.75);
  box-shadow: 0 0 0 1px rgba(0, 140, 255, 0.12), 0 0 28px rgba(0, 120, 255, 0.08);
}
.process-card--blue:hover {
  box-shadow: 0 0 0 1px rgba(0, 140, 255, 0.25), 0 0 36px rgba(0, 120, 255, 0.15);
}
.process-card--blue .process-card__icon {
  color: #6bb6ff;
  background: rgba(88, 170, 255, 0.12);
  border-color: rgba(88, 170, 255, 0.22);
}

.process-card--purple {
  border-color: rgba(130, 80, 230, 0.35);
  background:
    radial-gradient(ellipse 90% 55% at 50% 100%, rgba(130, 80, 230, 0.2), transparent),
    rgba(8, 10, 22, 0.75);
  box-shadow: 0 0 0 1px rgba(130, 80, 230, 0.12), 0 0 28px rgba(130, 80, 230, 0.08);
}
.process-card--purple:hover {
  box-shadow: 0 0 0 1px rgba(130, 80, 230, 0.28), 0 0 36px rgba(130, 80, 230, 0.15);
}
.process-card--purple .process-card__icon {
  color: #c0a5ff;
  background: rgba(180, 140, 255, 0.12);
  border-color: rgba(180, 140, 255, 0.22);
}

.process-card--green {
  border-color: rgba(30, 190, 155, 0.35);
  background:
    radial-gradient(ellipse 90% 55% at 50% 100%, rgba(30, 190, 155, 0.2), transparent),
    rgba(8, 10, 22, 0.75);
  box-shadow: 0 0 0 1px rgba(30, 190, 155, 0.12), 0 0 28px rgba(30, 190, 155, 0.08);
}
.process-card--green:hover {
  box-shadow: 0 0 0 1px rgba(30, 190, 155, 0.28), 0 0 36px rgba(30, 190, 155, 0.15);
}
.process-card--green .process-card__icon {
  color: #6ee7c8;
  background: rgba(74, 218, 189, 0.12);
  border-color: rgba(74, 218, 189, 0.24);
}

.process-card--orange {
  border-color: rgba(220, 130, 30, 0.35);
  background:
    radial-gradient(ellipse 90% 55% at 50% 100%, rgba(220, 130, 30, 0.2), transparent),
    rgba(8, 10, 22, 0.75);
  box-shadow: 0 0 0 1px rgba(220, 130, 30, 0.12), 0 0 28px rgba(220, 130, 30, 0.08);
}
.process-card--orange:hover {
  box-shadow: 0 0 0 1px rgba(220, 130, 30, 0.28), 0 0 36px rgba(220, 130, 30, 0.15);
}
.process-card--orange .process-card__icon {
  color: #ffb366;
  background: rgba(255, 160, 60, 0.12);
  border-color: rgba(255, 160, 60, 0.22);
}

/* ── Robots card (right) ── */
.process__right {
  display: flex;
  flex-direction: column;
}

.process-robots {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
  padding: clamp(20px, 2.2vw, 32px);
  border-radius: 18px;
  border: 1px solid rgba(0, 140, 255, 0.35);
  background:
    radial-gradient(ellipse 80% 50% at 50% 100%, rgba(0, 112, 192, 0.22), transparent),
    rgba(8, 10, 22, 0.78);
  box-shadow: 0 0 0 1px rgba(0, 140, 255, 0.10), 0 0 40px rgba(0, 112, 192, 0.10);
  flex: 1;
}

.process-robots__header {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.process-robots__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 50px;
  height: 50px;
  flex-shrink: 0;
  border-radius: 12px;
  color: #6bb6ff;
  background: rgba(88, 170, 255, 0.12);
  border: 1px solid rgba(88, 170, 255, 0.22);
}

.process-robots__icon svg {
  width: 26px;
  height: 26px;
}

.process-robots__title {
  margin: 0;
  font-size: clamp(1.1rem, 1.8vw, 1.4rem);
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-text);
}

.process-robots__text {
  margin: 0;
  font-size: clamp(0.875rem, 0.95vw, 0.9375rem);
  line-height: 1.65;
  color: var(--color-text-secondary);
}

/* Results block */
.process-robots__results {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  margin-top: auto;
  margin-bottom: auto;
}

.process-robots__results-label {
  margin: 0;
  font-size: clamp(0.75rem, 0.9vw, 0.875rem);
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--color-text-secondary);
}

.process-robots__screenshots {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
}

.process-robots__screenshot-wrap {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.process-robots__screenshot {
  position: relative;
  width: 100%;
  aspect-ratio: 1 / 1;
  border-radius: 10px;
  border: 1px dashed rgba(0, 140, 255, 0.35);
  background: rgba(0, 112, 192, 0.06);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.process-robots__screenshot:has(img) {
  border: none;
  background: none;
}

.process-robots__screenshot-img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  border-radius: 10px;
}

.process-robots__caption {
  font-size: clamp(0.75rem, 0.85vw, 0.8125rem);
  font-weight: 500;
  color: var(--color-text-secondary);
  text-align: center;
}

/* Desktop: side-by-side 50/50 */
@media (min-width: 900px) {
  .process__inner {
    grid-template-columns: 2fr 3fr;
    align-items: stretch;
    gap: var(--space-xl);
  }

  .process__left {
    display: flex;
    flex-direction: column;
  }

  .process__cards {
    flex: 1;
  }
}

/* Mobile: remove text indent under icon */
@media (max-width: 600px) {
  .process-card__text {
    margin-left: 0;
  }

  .process-card {
    padding: 10px var(--space-lg);
  }

}


/* =============================================
   SECTION — Results
   ============================================= */
.results {
  min-height: calc(100vh - var(--header-height));
  display: flex;
  align-items: center;
  padding-block: clamp(20px, 3.4vw, 41px);
  background-image:
    linear-gradient(rgba(0, 0, 0, 0.60), rgba(0, 0, 0, 0.60)),
    url('../assets/img/about_block_background.webp');
  background-size: cover;
  background-position: center center;
  background-repeat: no-repeat;
}

.results > .container {
  width: 100%;
}

.results__title {
  margin: 0 0 clamp(17px, 2.6vw, 31px);
  font-size: clamp(1.75rem, 3.8vw, 3rem);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: 0.01em;
  color: var(--color-text);
  text-align: center;
}

/* ── Timeline grid ── */
.results__timeline {
  display: grid;
  grid-template-columns: 1fr 72px 1fr;
  grid-template-rows: repeat(4, auto);
  align-items: center;
  row-gap: clamp(7px, 0.7vw, 10px);
  column-gap: clamp(10px, 1.3vw, 17px);
  position: relative;
}

/* Vertical spine line */
.results__timeline::before {
  content: '';
  position: absolute;
  left: 50%;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(
    to bottom,
    transparent 0%,
    rgba(0, 200, 220, 0.55) 8%,
    rgba(0, 200, 220, 0.55) 92%,
    transparent 100%
  );
  transform: translateX(-50%);
  pointer-events: none;
}

/* ── Node circles ── */
.results__node {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  border-radius: 50%;
  border: 2px solid rgba(0, 207, 230, 0.65);
  background: rgba(8, 10, 22, 0.92);
  color: #00d0e8;
  font-size: 1.125rem;
  font-weight: 700;
  line-height: 1;
  box-shadow:
    0 0 18px rgba(0, 200, 220, 0.35),
    inset 0 0 12px rgba(0, 200, 220, 0.08);
  margin-inline: auto;
  position: relative;
  z-index: 1;
  flex-shrink: 0;
}

/* Node grid placement */
.results__node--1 { grid-column: 2; grid-row: 1; }
.results__node--2 { grid-column: 2; grid-row: 2; }
.results__node--3 { grid-column: 2; grid-row: 3; }
.results__node--4 { grid-column: 2; grid-row: 4; }

/* ── Result cards ── */
.results-card {
  min-width: 0;
  border-radius: 14px;
  padding: clamp(10px, 1vw, 15px) clamp(12px, 1.3vw, 19px);
  border: 1px solid;
  position: relative;
  overflow: hidden;
  isolation: isolate;
  transition: box-shadow var(--transition-base);
}

/* Card grid placement */
.results-card--1 { grid-column: 1; grid-row: 1; }
.results-card--2 { grid-column: 3; grid-row: 2; }
.results-card--3 { grid-column: 1; grid-row: 3; }
.results-card--4 { grid-column: 3; grid-row: 4; }

.results-card__header {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  margin-bottom: calc(var(--space-md) / 2);
}

.results-card__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  flex-shrink: 0;
  border-radius: 10px;
  border: 1px solid;
}

.results-card__icon svg {
  width: 22px;
  height: 22px;
}

.results-card__title {
  flex: 1;
  margin: 0;
  font-size: clamp(1rem, 1.5vw, 1.15rem);
  font-weight: 600;
  line-height: 1.3;
  color: var(--color-text);
}

.results-card__text {
  margin: 0 0 0 calc(44px + var(--space-md));
  font-size: clamp(0.875rem, 0.95vw, 0.9375rem);
  line-height: 1.65;
  color: var(--color-text-secondary);
}

/* ── Card colour themes (reuse site palette) ── */
.results-card--blue {
  border-color: rgba(0, 140, 255, 0.35);
  background:
    radial-gradient(ellipse 90% 55% at 50% 100%, rgba(0, 120, 255, 0.18), transparent),
    rgba(8, 10, 22, 0.78);
  box-shadow: 0 0 0 1px rgba(0, 140, 255, 0.10), 0 0 28px rgba(0, 120, 255, 0.07);
}
.results-card--blue:hover {
  box-shadow: 0 0 0 1px rgba(0, 140, 255, 0.25), 0 0 36px rgba(0, 120, 255, 0.14);
}
.results-card--blue .results-card__icon {
  color: #6bb6ff;
  background: rgba(88, 170, 255, 0.12);
  border-color: rgba(88, 170, 255, 0.22);
}

.results-card--purple {
  border-color: rgba(130, 80, 230, 0.35);
  background:
    radial-gradient(ellipse 90% 55% at 50% 100%, rgba(130, 80, 230, 0.18), transparent),
    rgba(8, 10, 22, 0.78);
  box-shadow: 0 0 0 1px rgba(130, 80, 230, 0.10), 0 0 28px rgba(130, 80, 230, 0.07);
}
.results-card--purple:hover {
  box-shadow: 0 0 0 1px rgba(130, 80, 230, 0.28), 0 0 36px rgba(130, 80, 230, 0.14);
}
.results-card--purple .results-card__icon {
  color: #c0a5ff;
  background: rgba(180, 140, 255, 0.12);
  border-color: rgba(180, 140, 255, 0.22);
}

.results-card--green {
  border-color: rgba(30, 190, 155, 0.35);
  background:
    radial-gradient(ellipse 90% 55% at 50% 100%, rgba(30, 190, 155, 0.18), transparent),
    rgba(8, 10, 22, 0.78);
  box-shadow: 0 0 0 1px rgba(30, 190, 155, 0.10), 0 0 28px rgba(30, 190, 155, 0.07);
}
.results-card--green:hover {
  box-shadow: 0 0 0 1px rgba(30, 190, 155, 0.28), 0 0 36px rgba(30, 190, 155, 0.14);
}
.results-card--green .results-card__icon {
  color: #6ee7c8;
  background: rgba(74, 218, 189, 0.12);
  border-color: rgba(74, 218, 189, 0.24);
}

.results-card--orange {
  border-color: rgba(220, 130, 30, 0.35);
  background:
    radial-gradient(ellipse 90% 55% at 50% 100%, rgba(220, 130, 30, 0.18), transparent),
    rgba(8, 10, 22, 0.78);
  box-shadow: 0 0 0 1px rgba(220, 130, 30, 0.10), 0 0 28px rgba(220, 130, 30, 0.07);
}
.results-card--orange:hover {
  box-shadow: 0 0 0 1px rgba(220, 130, 30, 0.28), 0 0 36px rgba(220, 130, 30, 0.14);
}
.results-card--orange .results-card__icon {
  color: #ffb366;
  background: rgba(255, 160, 60, 0.12);
  border-color: rgba(255, 160, 60, 0.22);
}

/* Tablet / Mobile: collapse to 2-column (node left, card right) — matches audience/process breakpoint */
@media (max-width: 900px) {
  .results__timeline {
    grid-template-columns: 56px 1fr;
    grid-template-rows: repeat(4, auto);
    column-gap: clamp(10px, 1.5vw, 16px);
  }

  .results__timeline::before {
    left: 28px;
    transform: none;
  }

  .results-card--1 { grid-column: 2; grid-row: 1; }
  .results-card--2 { grid-column: 2; grid-row: 2; }
  .results-card--3 { grid-column: 2; grid-row: 3; }
  .results-card--4 { grid-column: 2; grid-row: 4; }

  .results__node--1 { grid-column: 1; grid-row: 1; }
  .results__node--2 { grid-column: 1; grid-row: 2; }
  .results__node--3 { grid-column: 1; grid-row: 3; }
  .results__node--4 { grid-column: 1; grid-row: 4; }

  .results-card__text {
    margin-left: 0;
  }
}

/* Very small screens */
@media (max-width: 480px) {
  .results__node {
    width: 44px;
    height: 44px;
    font-size: 1rem;
  }

  .results__timeline {
    grid-template-columns: 48px 1fr;
  }

  .results__timeline::before {
    left: 24px;
  }
}


/* =============================================
   MEDIA QUERIES — Header
   ============================================= */

/* Tablet */
@media (max-width: 1024px) {
  .header__nav-list {
    gap: var(--space-lg);
  }
}

/* Mobile */
@media (max-width: 768px) {
  .header__burger {
    display: flex;
  }

  .header__btn {
    margin-left: auto;
    padding: 8px 14px;
    font-size: 0.8125rem;
  }

  .header__nav {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    display: flex;
    flex-direction: column;
    background-color: rgba(13, 13, 15, 0.97);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--color-border);
    padding: var(--space-md) var(--space-lg);
    z-index: 99;

    opacity: 0;
    pointer-events: none;
    transform: translateY(-6px);
    transition:
      opacity var(--transition-base),
      transform var(--transition-base);
  }

  .header__nav.is-open {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
  }

  .header__nav-list {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 8px 12px;
  }

  .header__nav-list li {
    flex: 0 0 calc(33.33% - 8px);
    text-align: center;
  }

  .header__nav-link {
    font-size: 0.875rem;
    font-weight: 500;
    padding: 8px 4px;
    display: block;
  }

  .header__nav-link::after {
    display: none;
  }

  .header__inner {
    gap: var(--space-sm);
  }
}


/* =============================================
   PROGRAM — Course Curriculum
   ============================================= */
.program {
  min-height: calc(100vh - var(--header-height));
  display: flex;
  align-items: center;
  padding-block: var(--space-3xl);
  background-image:
    linear-gradient(rgba(0, 0, 0, 0.75), rgba(0, 0, 0, 0.75)),
    url('../assets/img/plan_background.webp');
  background-size: cover;
  background-position: center;
}

.program__title {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 700;
  margin-bottom: var(--space-2xl);
  text-align: center;
}

.program__list {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}

/* --- Module Card Base --- */
.module-card {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition:
    box-shadow var(--transition-base),
    border-color var(--transition-base);
}

.module-card__header {
  display: flex;
  align-items: flex-start;
  gap: var(--space-md);
  padding: var(--space-xl);
}

.module-card__meta {
  flex: 1;
  min-width: 0;
}

.module-card__label {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 3px 12px;
  border-radius: var(--radius-pill);
  border: 1px solid transparent;
  margin-bottom: var(--space-sm);
}

.module-card__title {
  font-size: clamp(1rem, 1.5vw, 1.15rem);
  font-weight: 600;
  line-height: 1.3;
  margin: 0 0 var(--space-md);
}

.module-card__goals {
  display: flex;
  flex-direction: column;
  gap: 5px;
}

.module-card__goals-heading {
  font-size: clamp(0.875rem, 0.95vw, 0.9375rem);
  font-weight: 600;
  color: var(--color-text-secondary);
  margin: 0;
}

.module-card__goals-list {
  margin: 0;
  padding-left: var(--space-md);
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.module-card__goals-list li,
.module-card__goals-text {
  font-size: clamp(0.875rem, 0.95vw, 0.9375rem);
  color: var(--color-text-secondary);
  margin: 0;
  line-height: 1.65;
}

/* Toggle Button */
.module-card__toggle {
  flex-shrink: 0;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  border: 1px solid transparent;
  background: transparent;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-top: 2px;
  transition:
    background var(--transition-base),
    box-shadow var(--transition-base);
}

.module-card__toggle svg {
  width: 18px;
  height: 18px;
  transition: transform var(--transition-base);
}

.module-card.is-open .module-card__toggle svg {
  transform: rotate(180deg);
}

/* Accordion Body — grid-template-rows trick */
.module-card__body {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 0.35s ease;
}

.module-card.is-open .module-card__body {
  grid-template-rows: 1fr;
}

.module-card__body-inner {
  overflow: hidden;
}

/* Lessons List */
.module-card__lessons {
  list-style: none;
  padding: 0;
  margin: 0;
  border-top: 1px solid var(--color-border);
}

.module-card__lesson {
  display: flex;
  align-items: flex-start;
  gap: var(--space-md);
  padding: 14px var(--space-xl);
  border-bottom: 1px solid var(--color-border);
  transition: background var(--transition-fast);
}

.module-card__lesson:last-child {
  border-bottom: none;
}

.module-card__lesson:hover {
  background: rgba(255, 255, 255, 0.025);
}

.module-card__lesson-num {
  flex-shrink: 0;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  border: 1px solid transparent;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 700;
  align-self: center;
}

.module-card__lesson-info {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 3px;
  padding-block: 6px;
}

.module-card__lesson-title,
.module-card__lesson-sub {
  font-size: clamp(0.875rem, 0.95vw, 0.9375rem);
  font-weight: 500;
  color: var(--color-text);
  margin: 0;
  line-height: 1.65;
}

/* --- Module 1: Blue --- */
.module-card--blue {
  border-color: rgba(0, 140, 255, 0.3);
  background:
    radial-gradient(ellipse 80% 50% at 50% 0%, rgba(0, 120, 255, 0.12), transparent),
    rgba(8, 10, 22, 0.8);
  box-shadow:
    0 0 0 1px rgba(0, 140, 255, 0.08),
    0 0 40px rgba(0, 120, 255, 0.06);
}

.module-card--blue.is-open {
  box-shadow:
    0 0 0 1px rgba(0, 140, 255, 0.2),
    0 0 40px rgba(0, 120, 255, 0.1);
}

.module-card--blue .module-card__label {
  color: #6bb6ff;
  background: rgba(88, 170, 255, 0.1);
  border-color: rgba(88, 170, 255, 0.22);
}

.module-card--blue .module-card__toggle {
  color: #6bb6ff;
  border-color: rgba(88, 170, 255, 0.28);
}

.module-card--blue .module-card__toggle:hover,
.module-card--blue.is-open .module-card__toggle {
  background: rgba(88, 170, 255, 0.1);
  box-shadow: 0 0 12px rgba(88, 170, 255, 0.15);
}

.module-card--blue .module-card__lesson-num {
  color: #6bb6ff;
  background: rgba(88, 170, 255, 0.08);
  border-color: rgba(88, 170, 255, 0.2);
}

/* --- Module 2: Green --- */
.module-card--green {
  border-color: rgba(30, 190, 155, 0.3);
  background:
    radial-gradient(ellipse 80% 50% at 50% 0%, rgba(30, 190, 155, 0.12), transparent),
    rgba(8, 10, 22, 0.8);
  box-shadow:
    0 0 0 1px rgba(30, 190, 155, 0.08),
    0 0 40px rgba(30, 190, 155, 0.06);
}

.module-card--green.is-open {
  box-shadow:
    0 0 0 1px rgba(30, 190, 155, 0.2),
    0 0 40px rgba(30, 190, 155, 0.1);
}

.module-card--green .module-card__label {
  color: #6ee7c8;
  background: rgba(74, 218, 189, 0.1);
  border-color: rgba(74, 218, 189, 0.22);
}

.module-card--green .module-card__toggle {
  color: #6ee7c8;
  border-color: rgba(74, 218, 189, 0.28);
}

.module-card--green .module-card__toggle:hover,
.module-card--green.is-open .module-card__toggle {
  background: rgba(74, 218, 189, 0.1);
  box-shadow: 0 0 12px rgba(74, 218, 189, 0.15);
}

.module-card--green .module-card__lesson-num {
  color: #6ee7c8;
  background: rgba(74, 218, 189, 0.08);
  border-color: rgba(74, 218, 189, 0.2);
}

/* --- Module 3: Orange --- */
.module-card--orange {
  border-color: rgba(220, 130, 30, 0.3);
  background:
    radial-gradient(ellipse 80% 50% at 50% 0%, rgba(220, 130, 30, 0.12), transparent),
    rgba(8, 10, 22, 0.8);
  box-shadow:
    0 0 0 1px rgba(220, 130, 30, 0.08),
    0 0 40px rgba(220, 130, 30, 0.06);
}

.module-card--orange.is-open {
  box-shadow:
    0 0 0 1px rgba(220, 130, 30, 0.2),
    0 0 40px rgba(220, 130, 30, 0.1);
}

.module-card--orange .module-card__label {
  color: #ffb366;
  background: rgba(255, 160, 60, 0.1);
  border-color: rgba(255, 160, 60, 0.2);
}

.module-card--orange .module-card__toggle {
  color: #ffb366;
  border-color: rgba(255, 160, 60, 0.28);
}

.module-card--orange .module-card__toggle:hover,
.module-card--orange.is-open .module-card__toggle {
  background: rgba(255, 160, 60, 0.1);
  box-shadow: 0 0 12px rgba(255, 160, 60, 0.15);
}

.module-card--orange .module-card__lesson-num {
  color: #ffb366;
  background: rgba(255, 160, 60, 0.08);
  border-color: rgba(255, 160, 60, 0.2);
}

/* Responsive: tighter padding on mobile */
@media (max-width: 600px) {
  .module-card__header {
    padding: var(--space-md);
  }

  .module-card__lesson {
    padding: 12px var(--space-md);
    gap: var(--space-sm);
  }
}


/* =============================================
   PAYMENT MODAL
   ============================================= */
.modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-md);
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);

  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-base), visibility var(--transition-base);
}

.modal-overlay.is-open {
  opacity: 1;
  visibility: visible;
}

.modal {
  position: relative;
  width: 100%;
  max-width: 480px;
  background: #1c1c20;
  border: 1px solid var(--color-border);
  border-radius: 16px;
  padding: var(--space-xl) var(--space-xl) var(--space-lg);
  box-shadow: 0 24px 64px rgba(0, 0, 0, 0.6);

  transform: scale(0.94) translateY(12px);
  transition: transform var(--transition-base);
}

.modal-overlay.is-open .modal {
  transform: scale(1) translateY(0);
}

.modal__close {
  position: absolute;
  top: var(--space-md);
  right: var(--space-md);
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background: rgba(255, 255, 255, 0.07);
  border: none;
  border-radius: 50%;
  color: var(--color-text-secondary);
  cursor: pointer;
  transition: background var(--transition-fast), color var(--transition-fast);
}

.modal__close:hover,
.modal__close:focus-visible {
  background: rgba(255, 255, 255, 0.14);
  color: var(--color-text);
  outline: none;
}

.modal__close svg {
  width: 16px;
  height: 16px;
}

.modal__title {
  font-size: clamp(1.25rem, 4vw, 1.5rem);
  font-weight: 700;
  color: var(--color-text);
  margin: 0 0 var(--space-md);
  padding-right: var(--space-xl);
  line-height: 1.3;
}

.modal__price {
  color: var(--color-accent);
  white-space: nowrap;
}

.modal__text {
  font-size: var(--font-size-base);
  color: var(--color-text-secondary);
  line-height: var(--line-height-base);
  margin: 0 0 var(--space-xl);
}

.modal__pay-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  padding: 14px var(--space-lg);
  font-size: 1rem;
  font-weight: 600;
  border-radius: var(--radius-pill);
  text-align: center;
  transition: background var(--transition-fast), transform var(--transition-fast);
}

.modal__pay-btn:hover {
  transform: translateY(-1px);
}

.modal__pay-btn:active {
  transform: translateY(0);
}

.modal__disclaimer {
  margin: var(--space-md) 0 0;
  font-size: 0.75rem;
  color: var(--color-text-secondary);
  line-height: 1.5;
  text-align: center;
}

.modal__disclaimer-link {
  color: var(--color-accent);
  text-decoration: underline;
  text-underline-offset: 2px;
  transition: color var(--transition-fast);
}

.modal__disclaimer-link:hover {
  color: var(--color-accent-hover);
}

@media (max-width: 480px) {
  .modal {
    padding: var(--space-lg) var(--space-md) var(--space-md);
  }
}


/* =============================================
   SITE FOOTER
   ============================================= */
.site-footer {
  border-top: 1px solid var(--color-border);
  padding: 16px 0;
}

.site-footer .container {
  display: flex;
  justify-content: center;
  gap: 24px;
}

.site-footer__link {
  font-size: 0.75rem;
  color: var(--color-text-secondary);
  text-decoration: underline;
  text-underline-offset: 2px;
  transition: color var(--transition-fast);
}

.site-footer__link:hover {
  color: var(--color-text);
}

.site-footer__sep {
  font-size: 0.75rem;
  color: var(--color-text-secondary);
  opacity: 0.4;
}


/* =============================================
   COMPONENT — Theme Toggle Button
   ============================================= */
.theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: none;
  border: 1px solid var(--color-border);
  color: var(--color-text-secondary);
  cursor: pointer;
  padding: 0;
  transition:
    background-color var(--transition-fast),
    border-color var(--transition-fast),
    color var(--transition-fast);
}

.theme-toggle:hover {
  background-color: rgba(255, 255, 255, 0.08);
  color: var(--color-text);
  border-color: rgba(255, 255, 255, 0.2);
}

.theme-toggle:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
}

/* Show sun in dark mode, moon in light mode */
.theme-toggle__icon--sun  { display: block; }
.theme-toggle__icon--moon { display: none;  }

html[data-theme="light"] .theme-toggle__icon--sun  { display: none;  }
html[data-theme="light"] .theme-toggle__icon--moon { display: block; }

html[data-theme="light"] .theme-toggle:hover {
  background-color: rgba(0, 0, 0, 0.06);
  color: var(--color-text);
  border-color: rgba(0, 0, 0, 0.18);
}


/* =============================================
   THEME — Light mode
   ============================================= */
html[data-theme="light"] {
  scrollbar-color: #d0d2d8 #f0f2f5;
}

html[data-theme="light"] {
  --color-bg: #f0f2f5;
  --color-surface: #ffffff;
  --color-text: #0d0d0f;
  --color-text-secondary: rgba(13, 13, 15, 0.72);
  --color-border: rgba(0, 0, 0, 0.10);
  --header-bg: rgba(240, 242, 245, 0.92);
}

/* Smooth transition when switching */
body,
.header,
.header__nav {
  transition:
    background-color var(--transition-base),
    background var(--transition-base),
    color var(--transition-base),
    border-color var(--transition-base);
}

.module-card {
  transition:
    background-color var(--transition-base),
    background var(--transition-base),
    color var(--transition-base),
    border-color var(--transition-base),
    box-shadow var(--transition-base);
}

/* Burger hover in light mode */
html[data-theme="light"] .header__burger:hover {
  background-color: rgba(0, 0, 0, 0.06);
}

/* Mobile nav dropdown in light mode */
@media (max-width: 768px) {
  html[data-theme="light"] .header__nav {
    background-color: rgba(240, 242, 245, 0.97);
  }
}

/* About cards — white semi-transparent base, dark text, same gradient structure */
html[data-theme="light"] .about-card {
  background: rgba(255, 255, 255, 0.72);
  border-color: rgba(0, 0, 0, 0.10);
}

html[data-theme="light"] .about-card--launch {
  background:
    radial-gradient(ellipse 70% 50% at 50% 100%, rgba(0, 112, 192, 0.48), transparent),
    rgba(255, 255, 255, 0.72);
}

html[data-theme="light"] .about-card--tslab {
  background:
    radial-gradient(ellipse 70% 60% at 100% 100%, rgba(130, 80, 230, 0.50), transparent),
    rgba(255, 255, 255, 0.72);
}

html[data-theme="light"] .about-card--system {
  background:
    radial-gradient(ellipse 70% 60% at 100% 100%, rgba(30, 190, 155, 0.50), transparent),
    rgba(255, 255, 255, 0.72);
}

html[data-theme="light"] .about-card__icon {
  background: rgba(0, 0, 0, 0.05);
  border-color: rgba(0, 0, 0, 0.10);
}

html[data-theme="light"] .about-card__media {
  border-color: rgba(0, 0, 0, 0.08);
}

html[data-theme="light"] .about-card__media-img {
  mix-blend-mode: multiply;
}

/* Audience cards — white semi-transparent base, dark text, same gradient structure */
html[data-theme="light"] .audience-card--blue {
  background:
    radial-gradient(ellipse 90% 55% at 50% 100%, rgba(0, 120, 255, 0.26), transparent),
    rgba(255, 255, 255, 0.72);
  border-color: rgba(0, 140, 255, 0.35);
  box-shadow:
    0 0 0 1px rgba(0, 140, 255, 0.12),
    0 0 28px rgba(0, 120, 255, 0.08);
}

html[data-theme="light"] .audience-card--purple {
  background:
    radial-gradient(ellipse 90% 55% at 50% 100%, rgba(130, 80, 230, 0.26), transparent),
    rgba(255, 255, 255, 0.72);
  border-color: rgba(130, 80, 230, 0.35);
  box-shadow:
    0 0 0 1px rgba(130, 80, 230, 0.12),
    0 0 28px rgba(130, 80, 230, 0.08);
}

html[data-theme="light"] .audience-card--green {
  background:
    radial-gradient(ellipse 90% 55% at 50% 100%, rgba(30, 190, 155, 0.26), transparent),
    rgba(255, 255, 255, 0.72);
  border-color: rgba(30, 190, 155, 0.35);
  box-shadow:
    0 0 0 1px rgba(30, 190, 155, 0.12),
    0 0 28px rgba(30, 190, 155, 0.08);
}

html[data-theme="light"] .audience-card--orange {
  background:
    radial-gradient(ellipse 90% 55% at 50% 100%, rgba(220, 130, 30, 0.26), transparent),
    rgba(255, 255, 255, 0.72);
  border-color: rgba(220, 130, 30, 0.35);
  box-shadow:
    0 0 0 1px rgba(220, 130, 30, 0.12),
    0 0 28px rgba(220, 130, 30, 0.08);
}

/* Payment modal */
html[data-theme="light"] .modal-overlay {
  background: rgba(0, 0, 0, 0.35);
}

html[data-theme="light"] .modal {
  background: #ffffff;
  box-shadow: 0 24px 64px rgba(0, 0, 0, 0.12);
}

html[data-theme="light"] .modal__close {
  background: rgba(0, 0, 0, 0.06);
}

html[data-theme="light"] .modal__close:hover,
html[data-theme="light"] .modal__close:focus-visible {
  background: rgba(0, 0, 0, 0.10);
}

/* Process robots card */
html[data-theme="light"] .process-robots {
  background:
    radial-gradient(ellipse 80% 50% at 50% 100%, rgba(0, 112, 192, 0.40), transparent),
    rgba(255, 255, 255, 0.72);
  border-color: rgba(0, 140, 255, 0.35);
  box-shadow: 0 0 0 1px rgba(0, 140, 255, 0.10), 0 0 40px rgba(0, 112, 192, 0.08);
}

html[data-theme="light"] .process-robots__icon {
  background: rgba(0, 0, 0, 0.05);
  border-color: rgba(0, 112, 192, 0.20);
}

html[data-theme="light"] .process-robots__title {
  color: var(--color-text);
}

html[data-theme="light"] .process-robots__text {
  color: var(--color-text-secondary);
}

html[data-theme="light"] .process-robots__results-label {
  color: var(--color-text-secondary);
}

/* Process cards */
html[data-theme="light"] .process-card--blue {
  background:
    radial-gradient(ellipse 90% 55% at 50% 100%, rgba(0, 120, 255, 0.28), transparent),
    rgba(255, 255, 255, 0.72);
  border-color: rgba(0, 140, 255, 0.35);
  box-shadow: 0 0 0 1px rgba(0, 140, 255, 0.12), 0 0 28px rgba(0, 120, 255, 0.08);
}

html[data-theme="light"] .process-card--purple {
  background:
    radial-gradient(ellipse 90% 55% at 50% 100%, rgba(130, 80, 230, 0.28), transparent),
    rgba(255, 255, 255, 0.72);
  border-color: rgba(130, 80, 230, 0.35);
  box-shadow: 0 0 0 1px rgba(130, 80, 230, 0.12), 0 0 28px rgba(130, 80, 230, 0.08);
}

html[data-theme="light"] .process-card--green {
  background:
    radial-gradient(ellipse 90% 55% at 50% 100%, rgba(30, 190, 155, 0.28), transparent),
    rgba(255, 255, 255, 0.72);
  border-color: rgba(30, 190, 155, 0.35);
  box-shadow: 0 0 0 1px rgba(30, 190, 155, 0.12), 0 0 28px rgba(30, 190, 155, 0.08);
}

html[data-theme="light"] .process-card--orange {
  background:
    radial-gradient(ellipse 90% 55% at 50% 100%, rgba(220, 130, 30, 0.28), transparent),
    rgba(255, 255, 255, 0.72);
  border-color: rgba(220, 130, 30, 0.35);
  box-shadow: 0 0 0 1px rgba(220, 130, 30, 0.12), 0 0 28px rgba(220, 130, 30, 0.08);
}

html[data-theme="light"] .process-card__icon {
  background: rgba(0, 0, 0, 0.05);
}

/* Results cards */
html[data-theme="light"] .results-card--blue {
  background:
    radial-gradient(ellipse 90% 55% at 50% 100%, rgba(0, 120, 255, 0.27), transparent),
    rgba(255, 255, 255, 0.72);
  border-color: rgba(0, 140, 255, 0.35);
  box-shadow: 0 0 0 1px rgba(0, 140, 255, 0.10), 0 0 28px rgba(0, 120, 255, 0.07);
}

html[data-theme="light"] .results-card--purple {
  background:
    radial-gradient(ellipse 90% 55% at 50% 100%, rgba(130, 80, 230, 0.27), transparent),
    rgba(255, 255, 255, 0.72);
  border-color: rgba(130, 80, 230, 0.35);
  box-shadow: 0 0 0 1px rgba(130, 80, 230, 0.10), 0 0 28px rgba(130, 80, 230, 0.07);
}

html[data-theme="light"] .results-card--green {
  background:
    radial-gradient(ellipse 90% 55% at 50% 100%, rgba(30, 190, 155, 0.27), transparent),
    rgba(255, 255, 255, 0.72);
  border-color: rgba(30, 190, 155, 0.35);
  box-shadow: 0 0 0 1px rgba(30, 190, 155, 0.10), 0 0 28px rgba(30, 190, 155, 0.07);
}

html[data-theme="light"] .results-card--orange {
  background:
    radial-gradient(ellipse 90% 55% at 50% 100%, rgba(220, 130, 30, 0.27), transparent),
    rgba(255, 255, 255, 0.72);
  border-color: rgba(220, 130, 30, 0.35);
  box-shadow: 0 0 0 1px rgba(220, 130, 30, 0.10), 0 0 28px rgba(220, 130, 30, 0.07);
}

html[data-theme="light"] .results-card__icon {
  background: rgba(0, 0, 0, 0.05);
}

/* Module cards */
html[data-theme="light"] .module-card--blue {
  background:
    radial-gradient(ellipse 80% 50% at 50% 0%, rgba(0, 120, 255, 0.40), transparent),
    rgba(255, 255, 255, 0.72);
  border-color: rgba(0, 140, 255, 0.30);
  box-shadow: 0 0 0 1px rgba(0, 140, 255, 0.08), 0 0 40px rgba(0, 120, 255, 0.06);
}

html[data-theme="light"] .module-card--green {
  background:
    radial-gradient(ellipse 80% 50% at 50% 0%, rgba(30, 190, 155, 0.40), transparent),
    rgba(255, 255, 255, 0.72);
  border-color: rgba(30, 190, 155, 0.30);
  box-shadow: 0 0 0 1px rgba(30, 190, 155, 0.08), 0 0 40px rgba(30, 190, 155, 0.06);
}

html[data-theme="light"] .module-card--orange {
  background:
    radial-gradient(ellipse 80% 50% at 50% 0%, rgba(220, 130, 30, 0.40), transparent),
    rgba(255, 255, 255, 0.72);
  border-color: rgba(220, 130, 30, 0.30);
  box-shadow: 0 0 0 1px rgba(220, 130, 30, 0.08), 0 0 40px rgba(220, 130, 30, 0.06);
}

html[data-theme="light"] .module-card__lesson:hover {
  background: rgba(0, 0, 0, 0.04);
}

/* Logo swap */
.header__logo-img--light { display: none; }

html[data-theme="light"] .header__logo-img--dark  { display: none; }
html[data-theme="light"] .header__logo-img--light { display: block; }

/* Hero section background */
html[data-theme="light"] .hero {
  background-image: url('../assets/img/Light_backgrounds/Light_main_background.webp');
}

/* Program section background */
html[data-theme="light"] .program {
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.85), rgba(255, 255, 255, 0.85)),
    url('../assets/img/Light_backgrounds/light_plan_background.webp');
}

/* Process section background */
html[data-theme="light"] .process {
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.85), rgba(255, 255, 255, 0.85)),
    url('../assets/img/Light_backgrounds/light_process_background.webp');
}

/* Results timeline nodes */
html[data-theme="light"] .results__node {
  background: rgba(255, 255, 255, 0.90);
  color: var(--color-accent);
  border-color: rgba(0, 112, 192, 0.50);
  box-shadow:
    0 0 18px rgba(0, 112, 192, 0.18),
    inset 0 0 12px rgba(0, 112, 192, 0.06);
}

/* Results section background */
html[data-theme="light"] .results {
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.80), rgba(255, 255, 255, 0.80)),
    url('../assets/img/Light_backgrounds/light_About_background.webp');
}

/* Audience section background */
html[data-theme="light"] .audience {
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.70), rgba(255, 255, 255, 0.70)),
    url('../assets/img/Light_backgrounds/Light_for_whom_background.webp');
}

/* About section background */
html[data-theme="light"] .about {
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.80), rgba(255, 255, 255, 0.80)),
    url('../assets/img/Light_backgrounds/light_About_background.webp');
}