:root {
  --bg: #faf7ff;
  --bg-elevated: #f8f4fe;
  --bg-rgb: 250, 247, 255;
  --bg-soft: #f1e8ff;
  --bg-soft-rgb: 241, 232, 255;
  --accent: #9955ff;
  --accent-rgb: 153, 85, 255;
  --accent-strong: #7733dd;
  --accent-strong-rgb: 119, 51, 221;
  --text: #0f172a;
  --text-muted: rgba(15, 23, 42, 0.6);
  --surface: rgba(255, 255, 255, 0.88);
  --surface-card: #ffffff;
  --border: rgba(var(--accent-rgb), 0.18);
  --surface-container-low: #f7f2fa;
  --surface-container-highest: #e6e0e9;
  --on-surface-variant: #625b71;
  --primary-container: #ecddff;
  --primary-container-hover: #e3d0ff;
  --on-primary-container: #34125f;
  --max-width: 1100px;
  --shadow: 0 16px 40px rgba(15, 23, 42, 0.12);
  --card-shadow: 0 8px 20px rgba(15, 23, 42, 0.06);
  --button-secondary-bg: rgba(255, 255, 255, 0.65);
  --input-bg: rgba(255, 255, 255, 0.9);
  --input-placeholder: rgba(15, 23, 42, 0.45);
  --status-error-color: #b91c1c;
  --status-success-color: #047857;
  --warning-panel-bg: rgba(255, 244, 245, 0.92);
  --warning-panel-border: rgba(220, 38, 38, 0.16);
  --radius-lg: 24px;
  --radius-md: 16px;
  --radius-sm: 10px;
  font-family: "Inter", "Segoe UI", Roboto, -apple-system, BlinkMacSystemFont,
    "Helvetica Neue", sans-serif;
}

:root[data-theme="dark"] {
  --bg: #0d0b14;
  --bg-elevated: #161324;
  --bg-rgb: 13, 11, 20;
  --bg-soft: #201b33;
  --bg-soft-rgb: 32, 27, 51;
  --accent: #aa77ff;
  --accent-rgb: 170, 119, 255;
  --accent-strong: #bb94ff;
  --accent-strong-rgb: 187, 148, 255;
  --text: #f3f0fa;
  --text-muted: rgba(243, 240, 250, 0.65);
  --surface: rgba(22, 19, 36, 0.88);
  --surface-card: #1c182e;
  --border: rgba(170, 119, 255, 0.22);
  --surface-container-low: #191629;
  --surface-container-highest: #2b2542;
  --on-surface-variant: #b6b0c6;
  --primary-container: #37205a;
  --primary-container-hover: #482a75;
  --on-primary-container: #ede1ff;
  --shadow: 0 16px 40px rgba(0, 0, 0, 0.55);
  --card-shadow: 0 8px 24px rgba(0, 0, 0, 0.35);
  --button-secondary-bg: rgba(255, 255, 255, 0.06);
  --input-bg: rgba(27, 23, 44, 0.9);
  --input-placeholder: rgba(243, 240, 250, 0.4);
  --status-error-color: #f87171;
  --status-success-color: #34d399;
  --warning-panel-bg: rgba(60, 20, 26, 0.8);
  --warning-panel-border: rgba(248, 113, 113, 0.35);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  letter-spacing: 0.01em;
  font-family: "Inter", "Segoe UI", Roboto, -apple-system, BlinkMacSystemFont,
    "Helvetica Neue", sans-serif;
}

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

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

img {
  width: 100%;
  display: block;
  border-radius: var(--radius-md);
  object-fit: cover;
  background: var(--surface);
}

.container {
  width: min(100% - 3rem, var(--max-width));
  margin: 0 auto;
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.3em;
  font-size: 0.75rem;
  color: var(--accent);
  margin-bottom: 1rem;
}

h1,
h2,
h3 {
  line-height: 1.2;
  font-weight: 600;
  overflow-wrap: break-word;
  hyphens: auto;
}

p + p {
  margin-top: 1rem;
}

ul {
  list-style: disc;
  padding-left: 1.2rem;
  margin-top: 1rem;
  color: var(--text-muted);
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.4rem;
  border-radius: 999px;
  border: 1px solid transparent;
  font-weight: 600;
  transition: transform 120ms ease, box-shadow 120ms ease,
    background-color 150ms ease;
}

.app-store-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  justify-content: center;
  min-height: 2.5rem;
  padding: 0.625rem 1rem;
  border-radius: 20px;
  background: var(--primary-container);
  color: var(--on-primary-container);
  border: none;
  box-shadow: none;
  transition: background-color 150ms ease, color 150ms ease;
}

.app-store-badge:hover {
  background: var(--primary-container-hover);
  color: var(--on-primary-container);
}

.app-store-badge:active {
  background: #dac3ff;
  color: var(--on-primary-container);
}

.app-store-badge:focus-visible {
  outline: 3px solid rgba(var(--accent-rgb), 0.26);
  outline-offset: 2px;
}

.app-store-badge__icon {
  width: 1.1rem;
  height: 1.1rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: currentColor;
}

.app-store-badge__icon svg {
  width: 100%;
  height: 100%;
}

.app-store-badge__label {
  font-size: 0.95rem;
  font-weight: 600;
  line-height: 1;
  color: currentColor;
}

.button.primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-strong));
  color: #ffffff;
  box-shadow: 0 12px 24px rgba(var(--accent-rgb), 0.28);
}

.button.primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 16px 32px rgba(var(--accent-strong-rgb), 0.35);
}

.button.secondary {
  border: 1px solid rgba(var(--accent-rgb), 0.3);
  color: var(--accent);
  background: var(--button-secondary-bg);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(16px);
  background: rgba(var(--bg-rgb), 0.9);
  border-bottom: 1px solid var(--border);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.1rem 0;
}

.branding {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-weight: 600;
}

.logo-mark {
  width: 42px;
  height: 42px;
  border-radius: 14px;
  object-fit: cover;
  box-shadow: 0 8px 16px rgba(var(--accent-rgb), 0.28);
}

[data-theme="dark"] .logo-mark {
  content: url(../img/icon_dark.svg);
}

.site-nav {
  display: flex;
  gap: 1.25rem;
  font-size: 0.95rem;
  color: var(--text-muted);
}

.site-nav a {
  position: relative;
  padding-bottom: 2px;
}

.site-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -4px;
  width: 100%;
  height: 2px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 150ms ease;
}

.site-nav a:hover::after,
.site-nav a:focus::after {
  transform: scaleX(1);
}

.site-header__actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  padding: 0;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--surface);
  color: var(--text-muted);
  cursor: pointer;
  flex: none;
  transition: color 150ms ease, border-color 150ms ease, background-color 150ms ease, transform 150ms ease;
}

.theme-toggle:hover {
  color: var(--accent);
  border-color: rgba(var(--accent-rgb), 0.4);
  transform: scale(1.05);
}

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

.theme-icon {
  width: 18px;
  height: 18px;
  pointer-events: none;
}

.theme-icon--sun {
  display: none;
}

.theme-icon--moon {
  display: block;
}

[data-theme="dark"] .theme-icon--sun {
  display: block;
}

[data-theme="dark"] .theme-icon--moon {
  display: none;
}

.lang-menu {
  position: relative;
  font-size: 0.9rem;
  color: var(--text-muted);
}

.lang-menu__toggle {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.4rem 0.75rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--surface);
  cursor: pointer;
  list-style: none;
  white-space: nowrap;
}

.lang-menu__toggle::-webkit-details-marker {
  display: none;
}

.lang-menu__toggle:hover,
.lang-menu[open] .lang-menu__toggle {
  color: var(--accent-strong);
  border-color: rgba(var(--accent-rgb), 0.4);
}

.lang-menu__icon {
  width: 16px;
  height: 16px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.6;
}

.lang-menu__list {
  position: absolute;
  top: calc(100% + 0.5rem);
  right: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(8.5rem, 1fr));
  gap: 0.15rem;
  margin: 0;
  padding: 0.5rem;
  list-style: none;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--bg-elevated);
  box-shadow: var(--shadow);
}

.lang-menu__list a {
  display: block;
  padding: 0.45rem 0.7rem;
  border-radius: var(--radius-sm);
  color: var(--text);
  white-space: nowrap;
}

.lang-menu__list a:hover,
.lang-menu__list a:focus-visible {
  background: var(--bg-soft);
}

.lang-menu__list a[aria-current="page"] {
  color: var(--accent-strong);
  font-weight: 600;
}

.hero {
  padding: 6rem 0 5rem;
  background:
    radial-gradient(circle at 10% 20%, rgba(var(--accent-rgb), 0.14), transparent 55%),
    radial-gradient(circle at 90% 10%, rgba(var(--accent-strong-rgb), 0.1), transparent 45%);
}

.hero .container {
  display: grid;
  gap: 3rem;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  align-items: center;
}

.hero h1 {
  font-size: clamp(2.5rem, 4vw, 3.25rem);
  margin-bottom: 1.25rem;
}

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

.vision {
  padding: 5rem 0;
}

.vision .container {
  max-width: 52rem;
}

.vision h2 {
  margin-bottom: 1.5rem;
}

.vision p:not(.eyebrow) {
  margin-bottom: 1rem;
  color: var(--text-muted);
  line-height: 1.75;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  margin-top: 2rem;
  flex-wrap: wrap;
}

.hero-download {
  justify-self: end;
  width: 100%;
  max-width: 26rem;
  padding: 1.75rem;
  border-radius: var(--radius-lg);
  background: var(--surface);
  border: 1px solid rgba(var(--accent-rgb), 0.12);
  box-shadow: 0 1px 2px rgba(15, 23, 42, 0.04), 0 24px 48px -24px rgba(var(--accent-rgb), 0.28);
  scroll-margin-top: 6rem;
}

.hero-download__title {
  margin: 0 0 0.5rem;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
}

.hero-download__list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.hero-download__item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 0;
}

.hero-download__item + .hero-download__item {
  border-top: 1px solid rgba(var(--accent-rgb), 0.1);
}

.hero-download__item:last-child {
  padding-bottom: 0;
}

.hero-download__platform {
  font-weight: 600;
}

.hero-download__item--soon .hero-download__platform {
  color: var(--text-muted);
}

.product,
.features,
.roadmap,
.about,
.contact {
  padding: 5rem 0;
}

.product .container,
.about .container {
  display: grid;
  gap: 3.5rem;
  align-items: center;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.about .container {
  grid-template-columns: 1fr;
}

.product ul li {
  margin-bottom: 0.6rem;
}

.product-visual {
  background: var(--surface);
  padding: 1.5rem;
  border-radius: 12px;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
}

.product-visual figcaption {
  color: var(--text-muted);
  margin-top: 1rem;
  text-align: center;
}

.features .feature-list {
  display: flex;
  flex-direction: column;
  gap: 3rem;
  margin-top: 2.5rem;
}

.features .feature-item {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 1.5rem;
  padding: 1.5rem;
  background: var(--bg-elevated);
  border-radius: var(--radius-lg);
  border: 1px solid rgba(var(--accent-rgb), 0.08);
  box-shadow: var(--card-shadow);
}

.features .feature-body {
  display: grid;
  grid-template-columns: minmax(0, 3fr) minmax(0, 1fr);
  align-items: center;
  gap: 2rem;
}

.features .feature-copy {
  flex: none;
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
  max-width: none;
}

.features .feature-item--text-only .feature-copy {
  max-width: 48rem;
}

.features .feature-item:not(.feature-item--text-only) .feature-copy {
  padding-left: 1rem;
  border-left: 2px solid rgba(var(--accent-rgb), 0.14);
}

.features .feature-title {
  margin: 0;
  font-size: 1.7rem;
  line-height: 1.2;
}

.features .feature-lead {
  max-width: 44rem;
  color: var(--text);
}

.features .feature-points {
  margin-top: 0.25rem;
  padding-left: 1.15rem;
  display: grid;
  gap: 0.75rem;
}

.features .feature-points li {
  color: var(--text-muted);
}

.features .feature-points strong {
  color: var(--text);
}

.features .feature-copy__lead {
  margin: 0;
  font-size: 1.18rem;
  font-weight: 600;
  line-height: 1.35;
  letter-spacing: -0.01em;
  color: var(--text);
}

.features .feature-copy__body {
  margin: 0;
  max-width: 22rem;
  color: var(--text-muted);
  line-height: 1.65;
}

.features .feature-media {
  width: 100%;
  min-width: 0;
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid rgba(var(--accent-rgb), 0.12);
  box-shadow: 0 16px 32px rgba(15, 23, 42, 0.14);
}

.features .feature-media--graph {
  overflow: visible;
  border: none;
  box-shadow: none;
}

.features .feature-media img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 12px;
}

.tag {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  min-height: 2rem;
  padding: 0.25rem 0.75rem;
  border-radius: 999px;
  background: var(--surface-container-low);
  color: var(--on-surface-variant);
  border: 1px solid var(--surface-container-highest);
  font-size: 0.82rem;
  font-weight: 600;
  box-shadow: none;
}

.tag::before {
  content: "";
  width: 0.45rem;
  height: 0.45rem;
  border-radius: 999px;
  background: currentColor;
  opacity: 0.72;
}

.roadmap-list {
  display: grid;
  gap: 1.5rem;
  margin-top: 2.4rem;
}

.milestone {
  display: flex;
  gap: 1.5rem;
  align-items: center;
  background: var(--surface);
  padding: 1.5rem 1.8rem;
  border-radius: var(--radius-md);
  border: 1px solid rgba(var(--accent-rgb), 0.14);
}

.timeframe {
  min-width: 76px;
  display: inline-block;
  font-weight: 600;
  color: var(--accent);
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.contact {
  background: linear-gradient(160deg, rgba(var(--accent-rgb), 0.12), transparent);
}

.contact-card {
  background: var(--surface);
  border-radius: var(--radius-lg);
  padding: 3rem;
  border: 1px solid rgba(var(--accent-rgb), 0.18);
  box-shadow: var(--shadow);
  max-width: 620px;
  margin: 0 auto;
  text-align: left;
}

.contact form {
  margin-top: 2rem;
}

.contact label {
  display: block;
  font-size: 0.82rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 0.75rem;
}

.input-group {
  display: flex;
  gap: 0.75rem;
}

input[type="email"],
input[type="password"],
input[type="text"] {
  flex: 1;
  padding: 0.85rem 1rem;
  border-radius: 999px;
  border: 1px solid rgba(var(--accent-rgb), 0.3);
  background: var(--input-bg);
  color: var(--text);
  font-size: 1rem;
}

input[type="email"]::placeholder,
input[type="password"]::placeholder,
input[type="text"]::placeholder {
  color: var(--input-placeholder);
}

.legal {
  margin-top: 1.5rem;
  font-size: 0.85rem;
  color: var(--text-muted);
}

.auth-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 6rem 0;
  background:
    radial-gradient(circle at 12% 10%, rgba(var(--accent-rgb), 0.12), transparent 45%),
    radial-gradient(circle at 88% 16%, rgba(var(--accent-strong-rgb), 0.1), transparent 40%),
    var(--bg);
}

.auth-card {
  background: var(--surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  box-shadow: 0 18px 42px rgba(15, 23, 42, 0.12);
  padding: 2.6rem;
  max-width: 640px;
  margin: 0 auto;
}

.auth-card h1 {
  margin: 0.3rem 0 0.75rem;
}

.auth-card p.lead {
  color: var(--text-muted);
}

.field {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  margin-top: 1.4rem;
}

.field label {
  font-size: 0.9rem;
  color: var(--text-muted);
}

.field input {
  width: 100%;
}

.form-actions {
  margin-top: 1.6rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.status {
  margin-top: 1rem;
  font-size: 0.95rem;
  color: var(--text-muted);
}

.status.error {
  color: var(--status-error-color);
}

.status.success {
  color: var(--status-success-color);
}

.status.note {
  font-size: 0.85rem;
}

.info-grid {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-top: 1.5rem;
}

.info-panel {
  background: var(--surface);
  border: 1px solid rgba(var(--accent-rgb), 0.12);
  border-radius: var(--radius-md);
  padding: 1.15rem 1.2rem;
}

.warning-panel {
  margin-top: 1.5rem;
  background: var(--warning-panel-bg);
  border-color: var(--warning-panel-border);
}

.info-panel__title,
.form-block__title {
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 0.65rem;
}

.info-panel p,
.info-list li,
.step-item p {
  color: var(--text-muted);
}

.info-list {
  margin: 0;
  padding-left: 1.1rem;
}

.info-list li + li {
  margin-top: 0.55rem;
}

.step-list {
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
}

.step-item {
  display: flex;
  gap: 0.85rem;
  align-items: flex-start;
}

.step-item__index {
  width: 1.8rem;
  height: 1.8rem;
  flex: 0 0 1.8rem;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9rem;
  font-weight: 700;
  color: #ffffff;
  background: linear-gradient(135deg, var(--accent), var(--accent-strong));
  box-shadow: 0 8px 16px rgba(var(--accent-rgb), 0.18);
}

.form-block {
  margin-top: 1.6rem;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(var(--accent-rgb), 0.12);
}

.site-footer {
  padding: 3rem 0;
  border-top: 1px solid var(--border);
  background: rgba(var(--bg-soft-rgb), 0.85);
}

.site-footer .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1.5rem;
}

.footer-branding {
  display: flex;
  gap: 0.75rem;
  align-items: center;
}

.footer-meta {
  color: var(--text-muted);
  font-size: 0.9rem;
}

@media (max-width: 960px) {
  .hero .container,
  .product .container,
  .about .container {
    grid-template-columns: 1fr;
  }

  .hero-download {
    justify-self: stretch;
    max-width: none;
  }

  .site-nav {
    display: none;
  }

  .features .feature-item,
  .features .feature-item:nth-child(even) {
    padding: 1.75rem;
  }

  .features .feature-body {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .features .feature-media {
    width: 100%;
  }
}

@media (max-width: 720px) {
  .container {
    width: min(100% - 2.2rem, var(--max-width));
  }

  .contact-card {
    padding: 2.4rem;
  }

  .input-group {
    flex-direction: column;
  }

  input[type="email"],
  .button {
    width: 100%;
  }
}

@media (max-width: 540px) {
  .features .feature-grid {
    grid-template-columns: 1fr;
  }

  .hero {
    padding-top: 4.5rem;
  }
}