:root {
  color-scheme: light dark;
  --color-bg: #0e0f14;
  --color-surface: rgba(18, 20, 29, 0.82);
  --color-card: rgba(21, 23, 33, 0.68);
  --color-text: #f8f9fb;
  --color-text-muted: rgba(248, 249, 251, 0.78);
  --color-accent: #35ffb3;
  --color-accent-muted: rgba(53, 255, 179, 0.15);
  --color-border: rgba(248, 249, 251, 0.12);
  --font-sans: "Inter", "Segoe UI", "Helvetica Neue", Arial, sans-serif;
  --font-serif: "Playfair Display", "Times New Roman", serif;
  --shadow-soft: 0 24px 48px rgba(0, 0, 0, 0.4);
  --transition-default: 220ms ease;
  --max-width: min(1120px, 92vw);
}

* {
  box-sizing: border-box;
}

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

a {
  color: inherit;
}

a:hover,
a:focus-visible {
  color: var(--color-accent);
}

.skip-link {
  position: fixed;
  top: 16px;
  left: 16px;
  background: var(--color-accent);
  color: #000;
  padding: 8px 16px;
  border-radius: 999px;
  transform: translateY(-140%);
  transition: transform var(--transition-default);
  z-index: 1000;
}

.skip-link:focus {
  transform: translateY(0);
}

.layout-container {
  width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: linear-gradient(180deg, rgba(14, 15, 20, 0.92) 0%, rgba(14, 15, 20, 0.46) 100%);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--color-border);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 24px;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: inherit;
}

.brand span {
  font-family: var(--font-serif);
  font-size: 1.45rem;
  letter-spacing: 0.08em;
}

.brand img {
  border-radius: 8px;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.35);
}

.site-nav {
  display: none;
  gap: 16px;
  font-size: 0.95rem;
}

.site-nav a {
  text-decoration: none;
  padding: 6px 0;
}

.site-header__cta {
  text-decoration: none;
  border: 1px solid var(--color-border);
  border-radius: 999px;
  padding: 8px 18px;
  font-size: 0.9rem;
  transition: background var(--transition-default), color var(--transition-default);
}

.site-header__cta:hover,
.site-header__cta:focus-visible {
  background: var(--color-accent);
  color: #101213;
}

.hero {
  position: relative;
  min-height: 100vh;
  display: grid;
  align-items: center;
  padding-top: 120px;
  padding-bottom: calc(80px + env(safe-area-inset-bottom, 24px));
  background:
    linear-gradient(120deg, rgba(14, 15, 20, 0.88), rgba(14, 15, 20, 0.6)),
    url('../assets/hero_poster.jpg') center/cover no-repeat;
}

.hero__media {
  position: absolute;
  inset: 0;
  overflow: hidden;
  z-index: 0;
}

.hero__overlay {
  position: absolute;
  inset: 0;
  background: rgba(6, 6, 10, 0.7);
  z-index: 1;
}

.hero__video-frame {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero__video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(1.2);
  opacity: 0;
  transition: opacity 600ms ease;
}

.hero__video.is-visible {
  opacity: 1;
}

.hero__content {
  display: grid;
  gap: 24px;
  position: relative;
  justify-items: start;
  z-index: 2;
  padding-bottom: clamp(64px, 14vh, 160px);
}

.hero__lead {
  max-width: 32ch;
  color: var(--color-text-muted);
  font-size: 1.1rem;
}

.persona-switcher {
  display: grid;
  gap: 12px;
}

.persona-switcher__chips {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.persona-chip-wrapper {
  display: contents;
}

.persona-switcher__description {
  margin: 0;
  font-size: 0.95rem;
  color: var(--color-text-muted);
}

.persona-chip {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 8px 14px 8px 8px;
  border-radius: 999px;
  border: 1px solid var(--color-border);
  background: rgba(14, 15, 20, 0.6);
  color: inherit;
  text-decoration: none;
  transition: border-color var(--transition-default), transform var(--transition-default), background var(--transition-default);
  cursor: pointer;
}

.persona-chip img {
  width: 36px;
  height: 36px;
  object-fit: cover;
  border-radius: 50%;
}

.persona-chip[aria-pressed="true"] {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 1px var(--color-accent);
  background: var(--color-accent-muted);
}

.persona-chip:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 4px;
}

.cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 16px 28px;
  border-radius: 999px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  text-decoration: none;
  transition: transform var(--transition-default), background var(--transition-default), color var(--transition-default);
}

.cta:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 4px;
}

.cta--primary {
  background: var(--color-accent);
  color: #061f12;
  box-shadow: var(--shadow-soft);
  margin-bottom: calc(clamp(40px, 8vh, 96px) + env(safe-area-inset-bottom, 16px));
}

.cta--primary:hover,
.cta--primary:focus-visible,
.cta--primary:active {
  transform: translateY(-2px);
  color: #061f12;
}

.cta--ghost {
  border: 1px solid var(--color-border);
  color: var(--color-text-muted);
  padding: 12px 20px;
  text-transform: none;
  letter-spacing: 0.02em;
  font-size: 0.9rem;
}

.consent-copy {
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

.scroll-cue {
  position: absolute;
  bottom: clamp(16px, 5vh, 48px);
  left: 50%;
  transform: translateX(-50%);
  display: grid;
  justify-items: center;
  gap: 6px;
  font-size: 0.75rem;
  letter-spacing: 0.4em;
  text-transform: uppercase;
  opacity: 0.7;
}

.scroll-cue__dot {
  animation: cue 1.8s infinite;
}

@keyframes cue {
  0% {
    transform: translateY(0);
    opacity: 1;
  }
  70% {
    transform: translateY(6px);
    opacity: 0.2;
  }
  100% {
    transform: translateY(0);
    opacity: 1;
  }
}

.section {
  padding-block: 96px;
  background: rgba(14, 15, 20, 0.9);
}

.section:nth-of-type(even) {
  background: rgba(10, 11, 16, 0.9);
}

.section h2 {
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  margin-bottom: 24px;
  font-family: var(--font-serif);
  letter-spacing: 0.04em;
}

.section p {
  color: var(--color-text-muted);
}

.how-steps {
  display: grid;
  gap: 24px;
}

.how-step {
  padding: 24px;
  border-radius: 24px;
  background: var(--color-card);
  border: 1px solid rgba(255, 255, 255, 0.06);
}

.how-step h3 {
  margin-top: 0;
  font-size: 1.2rem;
}

.trust-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 24px;
}

.trust-list li {
  padding: 24px;
  border-radius: 20px;
  background: var(--color-card);
  border: 1px solid rgba(255, 255, 255, 0.04);
}

.section--faq {
  background: linear-gradient(140deg, rgba(14, 15, 20, 0.95), rgba(16, 18, 26, 0.8));
}

.faq-list {
  display: grid;
  gap: 16px;
}

.faq-list details {
  background: var(--color-card);
  border-radius: 16px;
  padding: 16px 20px;
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.faq-list summary {
  cursor: pointer;
  font-weight: 600;
}

.faq-list summary::-webkit-details-marker {
  display: none;
}

.faq-list summary::after {
  content: "+";
  float: right;
  transition: transform var(--transition-default);
}

.faq-list details[open] summary::after {
  transform: rotate(45deg);
}

.site-footer {
  padding-block: 56px;
  background: rgba(8, 8, 12, 0.95);
  border-top: 1px solid var(--color-border);
}

.site-footer__inner {
  display: grid;
  gap: 24px;
}

.site-footer__links,
.site-footer__locale {
  display: flex;
  gap: 16px;
  align-items: center;
}

.site-footer__links a,
.site-footer__locale label {
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

.site-footer__locale select {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--color-border);
  border-radius: 999px;
  color: inherit;
  padding: 8px 16px;
}

.modal {
  position: fixed;
  inset: 0;
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 20;
}

.modal[aria-hidden="false"] {
  display: flex;
}

.modal__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(8px);
}

.modal__dialog {
  position: relative;
  z-index: 1;
  background: rgba(12, 13, 20, 0.95);
  border-radius: 24px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  padding: 32px;
  width: min(420px, 90vw);
  display: grid;
  gap: 16px;
  text-align: center;
}

.modal__close {
  position: absolute;
  top: 16px;
  right: 16px;
  border: none;
  background: none;
  color: inherit;
  font-size: 1.5rem;
  cursor: pointer;
}

.modal__qr {
  width: 220px;
  height: 220px;
  margin: 0 auto;
  border-radius: 16px;
  background: rgba(14, 16, 22, 0.8);
  display: grid;
  place-items: center;
  overflow: hidden;
}

.modal__helper,
.modal__fallback {
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

.no-js-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: #ffcc00;
  color: #1a1a1a;
  padding: 12px 24px;
  text-align: center;
  font-weight: 600;
  z-index: 30;
}

@media (min-width: 768px) {
  .site-nav {
    display: flex;
  }

  .hero {
    grid-template-columns: repeat(12, 1fr);
  }

  .hero__content {
    grid-column: 2 / span 6;
    padding-block: 80px;
  }

  .hero__lead {
    font-size: 1.2rem;
  }

  .section {
    padding-block: 120px;
  }

  .how-steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .trust-list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .site-footer__inner {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    align-items: center;
  }
}

@media (max-width: 767px) {
  .hero {
    min-height: 100svh;
    padding-top: clamp(60px, 9vh, 92px);
    padding-bottom: max(32px, env(safe-area-inset-bottom, 24px));
    align-items: start;
  }

  .hero__content {
    gap: 14px;
    padding-bottom: max(20px, env(safe-area-inset-bottom, 16px));
  }

  .persona-switcher {
    gap: 10px;
  }

  .persona-switcher__chips {
    flex-wrap: nowrap;
    overflow-x: auto;
    gap: 10px;
    padding: 0 8px 4px;
    margin: 0 -8px;
    scroll-snap-type: x proximity;
    -webkit-overflow-scrolling: touch;
  }

  .persona-switcher__chips::-webkit-scrollbar {
    display: none;
  }

  .persona-chip {
    flex: 0 0 auto;
    scroll-snap-align: start;
    padding: 8px 14px 8px 8px;
  }

  .persona-chip img {
    width: 48px;
    height: 48px;
  }

  .cta--primary {
    width: min(100%, 320px);
  }

  .scroll-cue {
    display: none;
  }
}

@media (min-width: 1080px) {
  .hero__content {
    grid-column: 2 / span 5;
  }
}

@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;
  }

  .hero__video {
    transition: none;
  }
}

@supports (backdrop-filter: blur(18px)) {
  .site-header,
  .modal__backdrop {
    backdrop-filter: blur(18px);
  }
}