* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  font-size: 1rem;
  line-height: 1.6;
  color: #111;
  background: #fff;
}

a {
  color: #0645ad;
}

.container {
  width: min(100% - 2rem, 68rem);
  margin-inline: auto;
}

.skip {
  position: absolute;
  left: -9999px;
}

.skip:focus {
  position: static;
  display: block;
  padding: 0.5rem;
  background: #fff;
  color: #000;
}

/* Шапка */

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  padding: 0.75rem 0;
  color: #fff;
  background: #0b1220;
}

.header-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
}

.logo {
  font-weight: bold;
  font-size: 1.25rem;
  color: #fff;
  text-decoration: none;
}

.site-nav ul {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.site-nav a {
  color: #d7e3f4;
  text-decoration: none;
}

.site-nav a:hover,
.site-nav a:focus-visible,
.site-nav a[aria-current="page"] {
  color: #fff;
  text-decoration: underline;
}

/* Хлебные крошки */

.breadcrumbs {
  padding: 1rem 0 0;
  font-size: 0.875rem;
  color: #666;
}

.breadcrumbs a {
  color: #0645ad;
}

.breadcrumbs span[aria-current="page"] {
  color: #333;
}

/* Hero */

.project-hero {
  padding: 3rem 0 3.5rem;
  color: #fff;
  background:
    radial-gradient(circle at 20% 20%, rgba(56, 189, 248, 0.35), transparent 45%),
    radial-gradient(circle at 80% 10%, rgba(168, 85, 247, 0.35), transparent 45%),
    linear-gradient(135deg, #0b1220, #131c33);
}

.eyebrow {
  margin: 0 0 0.75rem;
  color: #9fd7ff;
  font-size: 0.875rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.project-hero h1 {
  margin: 0 0 1rem;
  font-size: clamp(2.25rem, 6vw, 3.5rem);
  line-height: 1.1;
}

.project-hero .lead {
  max-width: 44rem;
  margin: 0 0 1.75rem;
  font-size: 1.15rem;
  color: #dbe7f7;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.button {
  display: inline-block;
  padding: 0.75rem 1.25rem;
  border-radius: 0.5rem;
  font-weight: bold;
  text-decoration: none;
}

.button.primary {
  color: #04121f;
  background: #7dd3fc;
}

.button.primary:hover,
.button.primary:focus-visible {
  background: #a5e4ff;
}

.button.ghost {
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.45);
}

.button.ghost:hover,
.button.ghost:focus-visible {
  border-color: #fff;
}

/* Секции */

section {
  padding: 2.5rem 0;
}

h2 {
  margin: 0 0 1.25rem;
  font-size: 1.75rem;
}

h3 {
  margin: 0 0 0.5rem;
  font-size: 1.15rem;
}

/* Метрики */

.metrics {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(11rem, 1fr));
  gap: 1rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.metrics li {
  padding: 1.25rem;
  border: 1px solid #e3e8ef;
  border-radius: 0.75rem;
  background: #f8fafc;
}

.metric-label {
  display: block;
  margin-bottom: 0.25rem;
  color: #556;
  font-size: 0.875rem;
}

.metric-value {
  font-size: 1.25rem;
  font-weight: bold;
}

/* Особенности */

.features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr));
  gap: 1rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.features li {
  padding: 1.5rem;
  border: 1px solid #e3e8ef;
  border-radius: 0.75rem;
  background: #fff;
  box-shadow: 0 1px 2px rgba(15, 23, 42, 0.06);
}

.features p {
  margin: 0;
  color: #475569;
}

/* Технологии */

.tech-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.tech-list li {
  padding: 0.4rem 0.75rem;
  border: 1px solid #cbd5e1;
  border-radius: 999px;
  background: #f1f5f9;
  font-size: 0.875rem;
}

/* CTA */

.cta {
  color: #fff;
  text-align: center;
  background: linear-gradient(135deg, #0b1220, #172554);
}

.cta h2 {
  margin-bottom: 0.75rem;
}

.cta p {
  max-width: 40rem;
  margin: 0 auto 1.5rem;
  color: #dbe7f7;
}

.cta .hero-actions {
  justify-content: center;
}

/* Подвал */

.site-footer {
  padding: 2rem 0;
  color: #cbd5e1;
  background: #0b1220;
}

.site-footer a {
  color: #93c5fd;
}

.site-footer nav ul {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1rem;
  margin: 0.75rem 0;
  padding: 0;
  list-style: none;
}

.small {
  color: #94a3b8;
  font-size: 0.875rem;
}

@media (max-width: 40rem) {
  .header-inner {
    flex-direction: column;
    align-items: flex-start;
  }

  .site-nav ul {
    flex-direction: column;
    gap: 0.4rem;
  }

  .project-hero {
    padding: 2rem 0;
  }
}
* {
  box-sizing: border-box;
}

body {
  margin: 0;
  color: #e8edf5;
  background: #05070d;
  font-family: "Segoe UI", Roboto, Arial, sans-serif;
  font-size: 1rem;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

a {
  color: #7dd3fc;
}

.container {
  width: min(100% - 2.5rem, 72rem);
  margin-inline: auto;
}

.skip {
  position: absolute;
  left: -9999px;
}

.skip:focus {
  position: static;
  display: block;
  padding: 0.75rem;
  background: #fff;
  color: #000;
}

/* Шапка */

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  padding: 1rem 0;
  background: rgba(5, 7, 13, 0.88);
  border-bottom: 1px solid rgba(125, 211, 252, 0.16);
  backdrop-filter: blur(10px);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  color: #fff;
  font-size: 1.2rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  text-decoration: none;
}

.logo::before {
  content: "";
  width: 0.7rem;
  height: 0.7rem;
  border-radius: 50%;
  background: #38bdf8;
  box-shadow: 0 0 18px #38bdf8;
}

.site-nav ul {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 1.4rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.site-nav a {
  color: #b8c4d8;
  font-size: 0.95rem;
  text-decoration: none;
}

.site-nav a:hover,
.site-nav a:focus-visible,
.site-nav a[aria-current="page"] {
  color: #fff;
}

/* Хлебные крошки */

.breadcrumbs {
  padding: 1.5rem 0 0;
  color: #7c8798;
  font-size: 0.85rem;
}

.breadcrumbs a {
  color: #7dd3fc;
}

/* Hero */

.hero {
  position: relative;
  overflow: hidden;
  padding: 5rem 0 6rem;
  background:
    radial-gradient(60rem 30rem at 15% 0%, rgba(56, 189, 248, 0.18), transparent 60%),
    radial-gradient(45rem 25rem at 90% 15%, rgba(129, 140, 248, 0.16), transparent 60%),
    linear-gradient(180deg, #05070d 0%, #080d18 100%);
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(125, 211, 252, 0.055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(125, 211, 252, 0.055) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.9), transparent 78%);
}

.hero-inner {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
  align-items: center;
  gap: 3rem;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin: 0 0 1.25rem;
  padding: 0.4rem 0.85rem;
  border: 1px solid rgba(125, 211, 252, 0.28);
  border-radius: 999px;
  color: #9bd9fb;
  background: rgba(56, 189, 248, 0.08);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.eyebrow::before {
  content: "";
  width: 0.45rem;
  height: 0.45rem;
  border-radius: 50%;
  background: #38bdf8;
  box-shadow: 0 0 12px #38bdf8;
}

h1 {
  margin: 0 0 1.25rem;
  color: #fff;
  font-size: clamp(2.6rem, 6vw, 4.4rem);
  font-weight: 800;
  line-height: 1.03;
  letter-spacing: -0.03em;
}

.hero-title-accent {
  display: block;
  color: transparent;
  background: linear-gradient(90deg, #38bdf8, #818cf8);
  -webkit-background-clip: text;
  background-clip: text;
}

.hero-lead {
  max-width: 38rem;
  margin: 0 0 2rem;
  color: #b8c4d8;
  font-size: 1.15rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
}

.button {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.9rem 1.5rem;
  border-radius: 0.7rem;
  font-weight: 700;
  text-decoration: none;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
}

.button-primary {
  color: #04121f;
  background: linear-gradient(135deg, #7dd3fc, #38bdf8);
  box-shadow: 0 12px 30px rgba(56, 189, 248, 0.22);
}

.button-primary:hover,
.button-primary:focus-visible {
  transform: translateY(-2px);
  box-shadow: 0 16px 38px rgba(56, 189, 248, 0.3);
}

.button-ghost {
  color: #e8edf5;
  border: 1px solid rgba(232, 237, 245, 0.22);
  background: rgba(255, 255, 255, 0.03);
}

.button-ghost:hover,
.button-ghost:focus-visible {
  border-color: rgba(125, 211, 252, 0.55);
  color: #fff;
}

/* Визуальный блок справа */

.hero-panel {
  position: relative;
  padding: 1.5rem;
  border: 1px solid rgba(125, 211, 252, 0.18);
  border-radius: 1.25rem;
  background: rgba(9, 14, 25, 0.82);
  box-shadow: 0 30px 80px rgba(2, 6, 23, 0.65);
}

.hero-panel::after {
  content: "";
  position: absolute;
  inset: -1px;
  border-radius: inherit;
  background: linear-gradient(135deg, rgba(56, 189, 248, 0.35), transparent 40%, rgba(129, 140, 248, 0.25));
  mask:
    linear-gradient(#000 0 0) content-box,
    linear-gradient(#000 0 0);
  mask-composite: exclude;
  padding: 1px;
  pointer-events: none;
}

.panel-title {
  margin: 0 0 1rem;
  color: #9bd9fb;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.api-flow {
  display: grid;
  gap: 0.7rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.api-flow li {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  padding: 0.85rem 1rem;
  border: 1px solid rgba(148, 163, 184, 0.16);
  border-radius: 0.7rem;
  background: rgba(15, 23, 42, 0.72);
}

.api-flow strong {
  color: #fff;
}

.api-flow span {
  color: #94a3b8;
  font-size: 0.88rem;
}

/* Секции */

.section {
  padding: 5rem 0;
}

.section-alt {
  background: #070b14;
  border-block: 1px solid rgba(148, 163, 184, 0.1);
}

.section-head {
  max-width: 44rem;
  margin-bottom: 2.5rem;
}

h2 {
  margin: 0 0 0.9rem;
  color: #fff;
  font-size: clamp(1.8rem, 3.5vw, 2.5rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.02em;
}

.section-head p {
  margin: 0;
  color: #9aa6b8;
}

/* Возможности */

.capabilities {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(17rem, 1fr));
  gap: 1.1rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.capabilities li {
  position: relative;
  padding: 1.8rem;
  border: 1px solid rgba(148, 163, 184, 0.14);
  border-radius: 1.1rem;
  background: linear-gradient(180deg, rgba(15, 23, 42, 0.75), rgba(9, 14, 25, 0.75));
  transition: border-color 0.18s ease, transform 0.18s ease;
}

.capabilities li:hover,
.capabilities li:focus-within {
  border-color: rgba(56, 189, 248, 0.45);
  transform: translateY(-3px);
}

.capability-number {
  display: block;
  margin-bottom: 1rem;
  color: #38bdf8;
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.16em;
}

.capabilities h3 {
  margin: 0 0 0.6rem;
  color: #fff;
  font-size: 1.15rem;
}

.capabilities p {
  margin: 0;
  color: #9aa6b8;
}

/* Архитектура */

.architecture {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr));
  gap: 1.1rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.architecture li {
  padding: 1.6rem;
  border-left: 3px solid #38bdf8;
  border-radius: 0.35rem 1rem 1rem 0.35rem;
  background: rgba(15, 23, 42, 0.6);
}

.architecture h3 {
  margin: 0 0 0.5rem;
  color: #fff;
}

.architecture p {
  margin: 0;
  color: #9aa6b8;
}

/* Технологии */

.tech {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.tech li {
  padding: 0.55rem 1rem;
  border: 1px solid rgba(125, 211, 252, 0.2);
  border-radius: 999px;
  color: #bfe6fb;
  background: rgba(56, 189, 248, 0.07);
  font-size: 0.9rem;
}

/* CTA */

.cta {
  position: relative;
  overflow: hidden;
  padding: 5rem 0;
  text-align: center;
  background:
    radial-gradient(45rem 22rem at 50% 0%, rgba(56, 189, 248, 0.16), transparent 65%),
    #05070d;
}

.cta h2 {
  margin-bottom: 1rem;
}

.cta p {
  max-width: 38rem;
  margin: 0 auto 2rem;
  color: #9aa6b8;
}

.cta .hero-actions {
  justify-content: center;
}

/* Подвал */

.site-footer {
  padding: 2.5rem 0;
  border-top: 1px solid rgba(148, 163, 184, 0.12);
  color: #7c8798;
  background: #05070d;
}

.site-footer nav ul {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.25rem;
  margin: 1rem 0;
  padding: 0;
  list-style: none;
}

.small {
  color: #64748b;
  font-size: 0.85rem;
}

@media (max-width: 56rem) {
  .hero {
    padding: 3.5rem 0 4rem;
  }

  .hero-inner {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

  .section {
    padding: 3.5rem 0;
  }
}

@media (max-width: 40rem) {
  .header-inner {
    flex-direction: column;
    align-items: flex-start;
  }

  .site-nav ul {
    flex-direction: column;
    gap: 0.45rem;
  }
}
/* =============================
   Премиум: объём, свет, блеск
   ============================= */

body {
  background:
    radial-gradient(70rem 35rem at 10% -10%, rgba(56, 189, 248, 0.10), transparent 60%),
    radial-gradient(60rem 30rem at 95% 10%, rgba(129, 140, 248, 0.10), transparent 60%),
    #05070d;
}

/* Светящаяся рамка для hero-панели */

.hero-panel {
  position: relative;
  isolation: isolate;
  background:
    linear-gradient(160deg, rgba(15, 23, 42, 0.92), rgba(8, 12, 22, 0.94));
  box-shadow:
    0 0 0 1px rgba(125, 211, 252, 0.14),
    0 30px 80px rgba(2, 6, 23, 0.75),
    inset 0 1px 0 rgba(255, 255, 255, 0.06);
}

.hero-panel::before {
  content: "";
  position: absolute;
  inset: -30%;
  z-index: -1;
  background:
    radial-gradient(circle at 20% 20%, rgba(56, 189, 248, 0.22), transparent 45%),
    radial-gradient(circle at 80% 80%, rgba(129, 140, 248, 0.20), transparent 45%);
  filter: blur(40px);
  opacity: 0.8;
}

/* Блик, проходящий по панели */

.hero-panel::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: linear-gradient(
    115deg,
    transparent 25%,
    rgba(255, 255, 255, 0.10) 45%,
    transparent 60%
  );
  pointer-events: none;
}

/* Объёмные карточки возможностей */

.capabilities li {
  position: relative;
  overflow: hidden;
  isolation: isolate;
  background:
    linear-gradient(160deg, rgba(15, 23, 42, 0.92), rgba(7, 11, 20, 0.94));
  border: 1px solid rgba(148, 163, 184, 0.14);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.05),
    0 20px 50px rgba(2, 6, 23, 0.45);
  transition:
    transform 0.2s ease,
    border-color 0.2s ease,
    box-shadow 0.2s ease;
}

.capabilities li::before {
  content: "";
  position: absolute;
  inset: -40%;
  z-index: -1;
  background:
    radial-gradient(circle at 25% 15%, rgba(56, 189, 248, 0.16), transparent 45%),
    radial-gradient(circle at 85% 85%, rgba(129, 140, 248, 0.14), transparent 45%);
  opacity: 0;
  transition: opacity 0.25s ease;
}

.capabilities li:hover,
.capabilities li:focus-within {
  transform: translateY(-6px);
  border-color: rgba(56, 189, 248, 0.45);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.07),
    0 26px 65px rgba(2, 6, 23, 0.6),
    0 0 35px rgba(56, 189, 248, 0.14);
}

.capabilities li:hover::before,
.capabilities li:focus-within::before {
  opacity: 1;
}

/* Блик на карточке при наведении */

.capabilities li::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(
    115deg,
    transparent 35%,
    rgba(255, 255, 255, 0.08) 50%,
    transparent 65%
  );
  opacity: 0;
  transition: opacity 0.25s ease;
  pointer-events: none;
}

.capabilities li:hover::after,
.capabilities li:focus-within::after {
  opacity: 1;
}

/* Светящаяся цифра */

.capability-number {
  color: #67e8f9;
  text-shadow:
    0 0 12px rgba(56, 189, 248, 0.55),
    0 0 30px rgba(56, 189, 248, 0.25);
}

/* Объёмные блоки архитектуры */

.architecture li {
  position: relative;
  overflow: hidden;
  border-left: 3px solid transparent;
  border-image: linear-gradient(180deg, #38bdf8, #818cf8) 1;
  background:
    linear-gradient(160deg, rgba(15, 23, 42, 0.88), rgba(7, 11, 20, 0.92));
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.05),
    0 18px 45px rgba(2, 6, 23, 0.4);
}

.architecture li::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 8rem;
  height: 8rem;
  background: radial-gradient(circle, rgba(56, 189, 248, 0.18), transparent 70%);
  filter: blur(18px);
  pointer-events: none;
}

/* Переливающийся градиент в hero-заголовке */

.hero-title-accent {
  position: relative;
  background: linear-gradient(
    100deg,
    #7dd3fc,
    #818cf8,
    #38bdf8,
    #a5b4fc,
    #7dd3fc
  );
  background-size: 220% 100%;
  -webkit-background-clip: text;
  background-clip: text;
  animation: gradientShift 7s ease-in-out infinite;
}

@keyframes gradientShift {
  0%,
  100% {
    background-position: 0% 50%;
  }

  50% {
    background-position: 100% 50%;
  }
}

/* Свечение кнопок */

.button-primary {
  position: relative;
  overflow: hidden;
  background: linear-gradient(135deg, #7dd3fc, #38bdf8 55%, #6366f1);
  box-shadow:
    0 14px 35px rgba(56, 189, 248, 0.25),
    inset 0 1px 0 rgba(255, 255, 255, 0.35);
}

.button-primary::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(
    115deg,
    transparent 30%,
    rgba(255, 255, 255, 0.35) 48%,
    transparent 65%
  );
  transform: translateX(-100%);
  transition: transform 0.55s ease;
}

.button-primary:hover::after,
.button-primary:focus-visible::after {
  transform: translateX(100%);
}

.button-ghost {
  background: rgba(255, 255, 255, 0.035);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.06),
    0 10px 30px rgba(2, 6, 23, 0.35);
}

/* Свечение секции CTA */

.cta {
  background:
    radial-gradient(55rem 28rem at 50% -10%, rgba(56, 189, 248, 0.20), transparent 65%),
    radial-gradient(40rem 20rem at 20% 100%, rgba(129, 140, 248, 0.14), transparent 60%),
    #05070d;
}

.cta h2 {
  text-shadow:
    0 0 35px rgba(56, 189, 248, 0.22),
    0 0 80px rgba(129, 140, 248, 0.14);
}

/* Тонкое свечение навигации */

.site-header {
  box-shadow:
    0 1px 0 rgba(125, 211, 252, 0.14),
    0 18px 45px rgba(2, 6, 23, 0.55);
}

.logo::before {
  animation: pulse 3.5s ease-in-out infinite;
}

@keyframes pulse {
  0%,
  100% {
    box-shadow: 0 0 12px rgba(56, 189, 248, 0.75);
  }

  50% {
    box-shadow: 0 0 24px rgba(56, 189, 248, 1);
  }
}

/* Доступность: отключение анимаций */

@media (prefers-reduced-motion: reduce) {
  .hero-title-accent,
  .logo::before {
    animation: none;
  }

  .button,
  .capabilities li {
    transition: none;
  }
}