/* ==========================================================================
   Кристина — GetCourse, разработка, ИИ-агенты
   Дизайн-система: тёмный техно-минимализм
   ========================================================================== */

:root {
  --color-bg-primary: #151920;
  --color-bg-secondary: #171B23;
  --color-surface: #1F2530;
  --color-surface-card: #1A202B;
  --color-surface-alt: #262E3B;
  --color-line: #323B4A;
  --color-text-primary: #ECEFF4;
  --color-text-secondary: #ACB4C4;
  --color-text-lead: #C7CDDA;
  --color-muted: #4B5568;
  --color-accent-teal: #35E6C8;
  --color-accent-teal-hover: #5EF0D8;
  --color-accent-teal-active: #22C7AC;
  --color-accent-violet: #9B7BF5;
  --color-success: #4FBF95;
  --color-error: #E2685F;
  --color-teal-soft: rgba(53, 230, 200, 0.08);
  --color-violet-soft: rgba(155, 123, 245, 0.08);

  --font-display: 'Golos Text', Arial, sans-serif;
  --font-body: 'Onest', Helvetica, sans-serif;

  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 32px;
  --space-2xl: 48px;
  --space-3xl: 64px;
  --space-4xl: 96px;

  --radius-sm: 4px;
  --radius-md: 10px;
  --radius-lg: 20px;
  --radius-pill: 999px;

  --shadow-hairline: 0 1px 2px rgba(0, 0, 0, .4);
  --shadow-soft: 0 12px 32px rgba(0, 0, 0, .35);
  --shadow-float: 0 20px 60px rgba(0, 0, 0, .5);

  --container-max: 1200px;

  --duration-fast: 120ms;
  --duration-base: 220ms;
  --easing-standard: cubic-bezier(.4, 0, .2, 1);
}

* {
  box-sizing: border-box;
}

/* ---------- scroll reveal (kept early so hover rules below win the cascade) ---------- */

.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s var(--easing-standard), transform 0.6s var(--easing-standard);
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  .reveal {
    transition: none;
    opacity: 1;
    transform: none;
  }
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--color-bg-primary);
  color: var(--color-text-primary);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

::selection {
  background: var(--color-accent-teal);
  color: var(--color-bg-primary);
}

::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}

::-webkit-scrollbar-track {
  background: var(--color-bg-primary);
}

::-webkit-scrollbar-thumb {
  background: var(--color-surface-alt);
  border-radius: 8px;
}

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

a {
  color: var(--color-accent-teal);
  text-decoration: none;
  transition: color var(--duration-fast) var(--easing-standard);
}

a:hover {
  color: var(--color-accent-violet);
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  margin: 0;
  letter-spacing: -0.01em;
}

p {
  margin: 0;
}

ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

button {
  font-family: var(--font-display);
  cursor: pointer;
}

.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 64px;
}

@media (max-width: 900px) {
  .container { padding: 0 32px; }
}

@media (max-width: 480px) {
  .container { padding: 0 20px; }
}

.section {
  padding: var(--space-4xl) 0;
  border-bottom: 1px solid var(--color-surface-alt);
}

.section--alt {
  background: var(--color-bg-secondary);
}

@media (max-width: 900px) {
  .section { padding: var(--space-3xl) 0; }
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--color-accent-teal);
  margin-bottom: 20px;
}

.eyebrow-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--color-accent-teal);
  animation: pulseline 2.4s ease-in-out infinite;
  flex-shrink: 0;
}

@keyframes pulseline {
  0%, 100% { opacity: .35; }
  50% { opacity: 1; }
}

@keyframes floaty {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-6px); }
}

.section-title {
  font-weight: 800;
  font-size: clamp(22px, 2.6vw, 34px);
  line-height: 1.2;
  letter-spacing: -0.01em;
  max-width: 700px;
}

.section-lead {
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-text-lead);
  max-width: 640px;
  margin-top: var(--space-md);
}

.section-head {
  margin-bottom: var(--space-3xl);
}

/* ---------- buttons ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 16px 30px;
  border-radius: var(--radius-md);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 15px;
  border: none;
  cursor: pointer;
  transition: background var(--duration-fast) var(--easing-standard),
              border-color var(--duration-fast) var(--easing-standard),
              color var(--duration-fast) var(--easing-standard),
              transform var(--duration-fast) var(--easing-standard);
  white-space: nowrap;
}

.btn-primary {
  background: var(--color-accent-teal);
  color: var(--color-bg-primary);
}

.btn-primary:hover {
  background: var(--color-accent-teal-hover);
  color: var(--color-bg-primary);
}

.btn-primary:active {
  background: var(--color-accent-teal-active);
}

.btn-secondary {
  background: transparent;
  color: var(--color-text-primary);
  border: 1px solid var(--color-line);
}

.btn-secondary:hover {
  border-color: var(--color-accent-teal);
  color: var(--color-accent-teal);
}

/* ---------- nav ---------- */

.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 16px 64px;
  background: rgba(11, 14, 19, 0.86);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-surface-alt);
}

@media (max-width: 900px) {
  .nav { padding: 14px 32px; }
}

@media (max-width: 480px) {
  .nav { padding: 12px 20px; }
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 15px;
  letter-spacing: .01em;
  flex-shrink: 0;
  color: var(--color-text-primary);
}

.nav-logo:hover {
  color: var(--color-text-primary);
}

.nav-links {
  display: flex;
  gap: 4px;
  margin-left: 40px;
}

.nav-links a {
  padding: 8px 14px;
  border-radius: var(--radius-pill);
  font-size: 14px;
  color: var(--color-text-secondary);
  border: 1px solid transparent;
  white-space: nowrap;
}

.nav-links a:hover {
  color: var(--color-text-primary);
  border-color: var(--color-line);
}

.nav-spacer {
  flex: 1;
}

.nav .btn {
  padding: 10px 20px;
  font-size: 13.5px;
  flex-shrink: 0;
}

.nav-toggle {
  display: none;
  background: transparent;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  width: 40px;
  height: 40px;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  margin-left: 12px;
}

.nav-toggle svg {
  stroke: var(--color-text-primary);
}

@media (max-width: 860px) {
  .nav-links {
    position: fixed;
    inset: 65px 0 auto 0;
    background: #0B0E13;
    border-bottom: 1px solid var(--color-surface-alt);
    flex-direction: column;
    gap: 2px;
    padding: 16px 20px 24px;
    margin-left: 0;
    display: none;
  }

  .nav-links.is-open {
    display: flex;
  }

  .nav-links a {
    padding: 12px 14px;
    border-radius: var(--radius-sm);
  }

  .nav-toggle {
    display: flex;
  }
}

/* ---------- hero ---------- */

.hero {
  position: relative;
  min-height: 100vh;
  min-height: 100svh;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  border-bottom: 1px solid var(--color-surface-alt);
}

.hero-media {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 50% 38%;
  z-index: 0;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  z-index: 1;
  background:
    linear-gradient(100deg, #151920 0%, #151920 38%, rgba(21,25,32,0.55) 64%, rgba(21,25,32,0.28) 100%),
    linear-gradient(0deg, #151920 0%, rgba(21,25,32,0) 26%);
}

.hero-glow {
  position: absolute;
  inset: 0;
  z-index: 1;
  background: radial-gradient(ellipse at 20% 90%, rgba(155,123,245,0.14), transparent 55%);
}

.hero-eyebrow-row {
  position: relative;
  z-index: 2;
  padding: 64px 64px 0;
}

.hero-eyebrow-row .eyebrow {
  margin-bottom: 0;
}

@media (max-width: 900px) {
  .hero-eyebrow-row { padding: 48px 32px 0; }
}

@media (max-width: 480px) {
  .hero-eyebrow-row { padding: 40px 20px 0; }
}

.hero-content {
  position: relative;
  z-index: 2;
  padding: 20px 64px 88px;
  max-width: 1100px;
}

@media (max-width: 900px) {
  .hero-content { padding: 16px 32px 64px; }
}

@media (max-width: 480px) {
  .hero-content { padding: 14px 20px 48px; }
}

.hero-title {
  font-weight: 900;
  font-size: clamp(28px, 4.4vw, 58px);
  line-height: 1.08;
  letter-spacing: -0.02em;
  margin: 0 0 20px;
  max-width: 780px;
}

/*
  На узких экранах блок ниже, чем на десктопе, — так cover обрезает видео
  меньше (видно и лицо, и часть графики справа), а текст остаётся поверх видео,
  но не наезжает на лицо: эйбрау поднят повыше и мельче, заголовок уже и компактнее.
*/
@media (max-width: 768px) {
  .hero {
    min-height: 66vh;
    min-height: 66svh;
  }

  .hero-video {
    object-position: 74% 42%;
  }

  .hero-eyebrow-row {
    padding-top: 18px;
  }

  .hero-eyebrow-row .eyebrow {
    font-size: 10.5px;
    letter-spacing: .1em;
  }

  .hero-content {
    padding-top: 12px;
  }

  .hero-title {
    font-size: 23px;
    line-height: 1.22;
    max-width: 250px;
    margin-bottom: 14px;
  }

  .hero-lead {
    font-size: 13px;
    line-height: 1.5;
    max-width: 230px;
    margin-bottom: 22px;
  }
}

.hero-title .accent {
  color: var(--color-accent-teal);
}

.hero-lead {
  font-size: clamp(15px, 1.4vw, 17px);
  line-height: 1.55;
  color: var(--color-text-lead);
  max-width: 540px;
  margin: 0 0 32px;
}

/* ---------- code ticker divider ---------- */

.code-ticker {
  overflow: hidden;
  border-top: 1px solid var(--color-surface-alt);
  border-bottom: 1px solid var(--color-surface-alt);
  background: var(--color-bg-secondary);
  padding: 20px 0;
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 6%, #000 94%, transparent);
  mask-image: linear-gradient(90deg, transparent, #000 6%, #000 94%, transparent);
}

.code-ticker-track {
  display: flex;
  width: max-content;
  gap: 48px;
  animation: ticker-scroll 36s linear infinite;
}

.code-ticker:hover .code-ticker-track {
  animation-play-state: paused;
}

.code-ticker-item {
  font-family: 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, monospace;
  font-size: 13px;
  color: var(--color-text-secondary);
  white-space: nowrap;
  flex-shrink: 0;
}

.code-ticker-item .k-teal {
  color: var(--color-accent-teal);
}

.code-ticker-item .k-violet {
  color: var(--color-accent-violet);
}

@keyframes ticker-scroll {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

@media (prefers-reduced-motion: reduce) {
  .code-ticker-track {
    animation: none;
  }
}

@media (max-width: 640px) {
  .code-ticker-item { font-size: 12px; }
}

/* ---------- checklist ("это тебе, если") ---------- */

.checklist {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: var(--color-surface-alt);
  border: 1px solid var(--color-surface-alt);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

@media (max-width: 720px) {
  .checklist { grid-template-columns: 1fr; }
}

.checklist-item {
  background: var(--color-bg-primary);
  padding: 32px;
  display: flex;
  gap: 16px;
  align-items: flex-start;
  transition: background var(--duration-base) var(--easing-standard);
}

.checklist-item:hover {
  background: #1B212B;
}

.checklist-item svg {
  flex-shrink: 0;
  margin-top: 3px;
}

.checklist-item p {
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-text-lead);
}

/* ---------- services ---------- */

.card-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

@media (max-width: 960px) {
  .card-grid { grid-template-columns: 1fr; }
}

.service-card {
  border: 1px solid var(--color-surface-alt);
  border-radius: 14px;
  padding: 32px;
  background: var(--color-surface-card);
  display: flex;
  flex-direction: column;
  gap: 16px;
  transition: transform var(--duration-base) var(--easing-standard),
              border-color var(--duration-base) var(--easing-standard),
              box-shadow var(--duration-base) var(--easing-standard);
}

.service-card:hover {
  transform: translateY(-6px);
  border-color: var(--color-accent-teal);
  box-shadow: var(--shadow-soft);
}

.service-card-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-teal-soft);
  flex-shrink: 0;
}

.service-card-icon svg {
  stroke: var(--color-accent-teal);
}

.service-card:nth-child(2) .service-card-icon {
  background: var(--color-violet-soft);
}

.service-card:nth-child(2) .service-card-icon svg {
  stroke: var(--color-accent-violet);
}

.service-card h3 {
  font-weight: 700;
  font-size: 20px;
  line-height: 1.25;
}

.service-card p {
  font-size: 14.5px;
  line-height: 1.65;
  color: var(--color-text-secondary);
}

/* ---------- results ("что ты получаешь") ---------- */

.results-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

@media (max-width: 960px) {
  .results-grid { grid-template-columns: 1fr; }
}

.result-card {
  padding: 32px;
  border: 1px solid var(--color-surface-alt);
  border-radius: 14px;
  transition: transform var(--duration-base) var(--easing-standard),
              border-color var(--duration-base) var(--easing-standard),
              box-shadow var(--duration-base) var(--easing-standard);
}

.result-card:hover {
  transform: translateY(-6px);
  border-color: var(--color-accent-teal);
  box-shadow: var(--shadow-soft);
}

.result-card h3 {
  font-weight: 700;
  font-size: 17px;
  margin-bottom: 12px;
  line-height: 1.35;
}

.result-card p {
  font-size: 14px;
  line-height: 1.65;
  color: var(--color-text-secondary);
}

.result-time {
  color: var(--color-accent-teal);
  font-weight: 600;
}

/* ---------- why me ---------- */

.why-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--color-surface-alt);
  border: 1px solid var(--color-surface-alt);
  border-radius: 14px;
  overflow: hidden;
}

@media (max-width: 900px) {
  .why-grid { grid-template-columns: 1fr; }
}

.why-item {
  background: var(--color-bg-secondary);
  padding: 32px 28px;
  transition: background var(--duration-base) var(--easing-standard);
}

.section--alt .why-item {
  background: var(--color-bg-primary);
}

.why-item:hover {
  background: #232B38;
}

.why-item-num {
  font-family: var(--font-display);
  font-size: 26px;
  font-weight: 800;
  color: transparent;
  -webkit-text-stroke: 1px var(--color-accent-violet);
  margin-bottom: 16px;
}

.why-item p {
  font-size: 14.5px;
  line-height: 1.65;
  color: var(--color-text-lead);
}

/* ---------- cases ---------- */

.case-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

@media (max-width: 960px) {
  .case-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 640px) {
  .case-grid { grid-template-columns: 1fr; }
}

.case-card {
  border: 1px solid var(--color-surface-alt);
  border-radius: 14px;
  overflow: hidden;
  background: var(--color-surface-card);
  cursor: pointer;
  transition: transform var(--duration-base) var(--easing-standard),
              border-color var(--duration-base) var(--easing-standard),
              box-shadow var(--duration-base) var(--easing-standard);
}

.case-card:hover,
.case-card:focus-visible {
  transform: translateY(-6px);
  border-color: var(--color-accent-teal);
  box-shadow: var(--shadow-soft);
}

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

.case-card:hover .case-card-visual svg {
  transform: scale(1.08);
}

.case-card-hint {
  position: absolute;
  right: 14px;
  bottom: 12px;
  font-family: var(--font-display);
  font-size: 12px;
  font-weight: 600;
  color: var(--color-accent-teal);
  opacity: 0;
  transform: translateX(-6px);
  transition: opacity var(--duration-base) var(--easing-standard),
              transform var(--duration-base) var(--easing-standard);
}

.case-card:hover .case-card-hint,
.case-card:focus-visible .case-card-hint {
  opacity: 1;
  transform: translateX(0);
}

.case-card-visual {
  height: 160px;
  background: radial-gradient(ellipse at 50% 45%, #212836 0%, var(--color-surface-card) 72%);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  border-bottom: 1px solid var(--color-surface-alt);
  overflow: hidden;
}

.case-card-halo {
  position: absolute;
  width: 150px;
  height: 150px;
  border-radius: 50%;
  filter: blur(26px);
  opacity: .32;
  animation: case-halo-pulse 3.6s ease-in-out infinite;
}

.case-card-halo.violet {
  background: radial-gradient(circle, var(--color-accent-violet) 0%, transparent 72%);
}

.case-card-halo.teal {
  background: radial-gradient(circle, var(--color-accent-teal) 0%, transparent 72%);
}

@keyframes case-halo-pulse {
  0%, 100% { opacity: .24; transform: scale(1); }
  50% { opacity: .44; transform: scale(1.08); }
}

@media (prefers-reduced-motion: reduce) {
  .case-card-halo { animation: none; }
}

.case-card-visual svg {
  position: relative;
  z-index: 2;
  width: 52px;
  height: 52px;
  stroke-width: 1.3;
  fill: none;
  transition: transform var(--duration-base) var(--easing-standard);
}

.case-card-visual svg.teal {
  stroke: var(--color-accent-teal);
  filter: drop-shadow(0 0 9px rgba(53, 230, 200, .5));
}

.case-card-visual svg.violet {
  stroke: var(--color-accent-violet);
  filter: drop-shadow(0 0 9px rgba(155, 123, 245, .5));
}

.case-card-body {
  padding: 22px 24px 26px;
}

.case-card-body h3 {
  font-weight: 700;
  font-size: 16px;
  margin-bottom: 10px;
  line-height: 1.3;
}

.case-card-body p {
  font-size: 13.5px;
  line-height: 1.6;
  color: var(--color-text-secondary);
}

/* ---------- reviews ---------- */

.reviews-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  align-items: start;
}

@media (max-width: 900px) {
  .reviews-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 560px) {
  .reviews-grid { grid-template-columns: 1fr; }
}

.review-card {
  position: relative;
  border: 1px solid var(--color-surface-alt);
  border-radius: 14px;
  padding: 30px 24px 24px;
  background: var(--color-surface-card);
  transition: transform var(--duration-base) var(--easing-standard),
              border-color var(--duration-base) var(--easing-standard),
              box-shadow var(--duration-base) var(--easing-standard);
}

.review-card:hover {
  transform: translateY(-6px);
  border-color: var(--color-accent-violet);
  box-shadow: var(--shadow-soft);
}

.review-card::before {
  content: '\201C';
  font-family: var(--font-display);
  font-size: 44px;
  line-height: 1;
  color: var(--color-surface-alt);
  position: absolute;
  top: 10px;
  left: 20px;
}

.review-quote {
  position: relative;
  font-size: 14.5px;
  line-height: 1.6;
  color: var(--color-text-primary);
  font-style: italic;
}

.review-author {
  font-size: 12.5px;
  color: var(--color-text-secondary);
  margin-top: 14px;
}

/* ---------- pricing ---------- */

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

@media (max-width: 900px) {
  .pricing-grid { grid-template-columns: 1fr; }
}

.price-card {
  border: 1px solid var(--color-surface-alt);
  border-radius: 16px;
  padding: 32px;
  background: var(--color-bg-secondary);
  transition: transform var(--duration-base) var(--easing-standard),
              border-color var(--duration-base) var(--easing-standard),
              box-shadow var(--duration-base) var(--easing-standard);
}

.price-card:hover {
  transform: translateY(-6px);
  border-color: var(--color-accent-teal);
  box-shadow: var(--shadow-soft);
}

.section--alt .price-card {
  background: var(--color-bg-primary);
}

.price-card--wide {
  grid-column: 1 / -1;
}

.price-card-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 14px;
}

.price-card h3 {
  font-weight: 700;
  font-size: 17px;
  line-height: 1.35;
  max-width: 420px;
}

.price-tag {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 15px;
  color: var(--color-accent-teal);
  white-space: nowrap;
  flex-shrink: 0;
}

.price-card p {
  font-size: 14px;
  line-height: 1.65;
  color: var(--color-text-secondary);
}

.price-sub {
  margin-top: 14px;
  font-size: 13px;
  color: var(--color-muted);
}

.price-sub-list {
  margin-top: 10px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.price-sub-list li {
  font-size: 13.5px;
  color: var(--color-text-secondary);
}

/* ---------- objections / accordion ---------- */

.accordion {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.accordion-item {
  border: 1px solid var(--color-surface-alt);
  border-radius: 14px;
  overflow: hidden;
  transition: border-color var(--duration-base) var(--easing-standard);
}

.accordion-item:hover {
  border-color: var(--color-line);
}

.accordion-trigger {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  padding: 22px 26px;
  background: transparent;
  border: none;
  text-align: left;
  color: var(--color-text-primary);
}

.accordion-trigger span.q {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 16px;
  line-height: 1.4;
}

.accordion-icon {
  flex-shrink: 0;
  width: 22px;
  height: 22px;
  color: var(--color-accent-teal);
  font-size: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform var(--duration-base) var(--easing-standard);
}

.accordion-item.is-open .accordion-icon {
  transform: rotate(45deg);
}

.accordion-panel {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--duration-base) var(--easing-standard);
}

.accordion-panel-inner {
  padding: 0 26px 24px;
  font-size: 14.5px;
  line-height: 1.65;
  color: var(--color-text-secondary);
}

/* ---------- final cta ---------- */

.final-cta {
  position: relative;
  border-radius: 24px;
  border: 1px solid var(--color-surface-alt);
  padding: 72px 64px;
  text-align: center;
  overflow: hidden;
  background: var(--color-surface-card);
}

.final-cta::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 50% 0%, rgba(155,123,245,0.14), transparent 60%);
  pointer-events: none;
}

@media (max-width: 720px) {
  .final-cta { padding: 48px 28px; }
}

.final-cta-inner {
  position: relative;
  max-width: 640px;
  margin: 0 auto;
}

.final-cta h2 {
  font-weight: 800;
  font-size: clamp(22px, 2.8vw, 32px);
  line-height: 1.2;
  margin-bottom: 16px;
}

.final-cta p {
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-text-lead);
  margin-bottom: 32px;
}

/* ---------- case lightbox ---------- */

.lightbox {
  position: fixed;
  inset: 0;
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  visibility: hidden;
  opacity: 0;
  transition: opacity var(--duration-base) var(--easing-standard), visibility var(--duration-base);
}

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

.lightbox-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(11, 14, 19, 0.86);
  backdrop-filter: blur(6px);
}

.lightbox-dialog {
  position: relative;
  width: 100%;
  max-width: 760px;
  background: var(--color-surface-card);
  border: 1px solid var(--color-surface-alt);
  border-radius: 20px;
  padding: 20px;
  transform: scale(0.96) translateY(8px);
  transition: transform var(--duration-base) var(--easing-standard);
}

.lightbox.is-open .lightbox-dialog {
  transform: scale(1) translateY(0);
}

.lightbox-close {
  position: absolute;
  top: 16px;
  right: 16px;
  z-index: 2;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1px solid var(--color-line);
  background: var(--color-surface);
  color: var(--color-text-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: color var(--duration-fast) var(--easing-standard), border-color var(--duration-fast) var(--easing-standard);
}

.lightbox-close:hover {
  color: var(--color-accent-teal);
  border-color: var(--color-accent-teal);
}

.lightbox-stage {
  display: flex;
  align-items: center;
  gap: 12px;
}

.lightbox-nav {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid var(--color-line);
  background: var(--color-surface);
  color: var(--color-text-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: color var(--duration-fast) var(--easing-standard), border-color var(--duration-fast) var(--easing-standard);
}

.lightbox-nav:hover {
  color: var(--color-accent-teal);
  border-color: var(--color-accent-teal);
}

.lightbox-nav:disabled {
  opacity: 0.3;
  pointer-events: none;
}

.lightbox-screen {
  position: relative;
  flex: 1;
  min-width: 0;
  aspect-ratio: 16 / 10;
  border-radius: 14px;
  border: 1px solid var(--color-surface-alt);
  background: var(--color-bg-primary);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
}

.lightbox-screen.has-image {
  background: #EDEEF1;
}

.lightbox-screen-label {
  font-family: var(--font-display);
  font-size: 14px;
  color: var(--color-text-secondary);
  max-width: 320px;
  padding: 24px;
}

.lightbox-footer {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  margin-top: 18px;
  padding: 0 4px;
}

.lightbox-footer h3 {
  font-weight: 700;
  font-size: 16px;
}

.lightbox-counter {
  font-family: var(--font-display);
  font-size: 13px;
  color: var(--color-muted);
  flex-shrink: 0;
}

@media (max-width: 640px) {
  .lightbox-dialog { padding: 16px; }
  .lightbox-stage { gap: 8px; }
  .lightbox-nav { width: 34px; height: 34px; }
  .lightbox-screen { padding: 16px; }
}

/* ---------- footer ---------- */

.footer {
  padding: 48px 0;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
}

.footer-brand {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 15px;
}

.footer-note {
  font-size: 12.5px;
  color: var(--color-muted);
  max-width: 460px;
  line-height: 1.6;
}

.footer-links {
  display: flex;
  align-items: center;
  gap: 20px;
}

.footer-links a {
  font-size: 14px;
  color: var(--color-text-secondary);
}

.footer-bottom {
  margin-top: 32px;
  padding-top: 24px;
  border-top: 1px solid var(--color-surface-alt);
  font-size: 12px;
  color: var(--color-muted);
}