:root {
  --vh: 1vh;
  --bg: #050709;
  --surface: rgba(13, 18, 26, 0.85);
  --surface-alt: rgba(15, 21, 30, 0.72);
  --ink: #e8edf2;
  --muted: #98a4b5;
  --accent: #cc1e2c;
  --amber: #f0b429;
  --nav-h: 72px;
  --frame-width: min(1100px, calc(100% - 32px));
  color-scheme: dark;
  font-family: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
}

@supports (height: 100dvh) {
  :root { --vh: 1dvh; }
}

*, *::before, *::after {
  box-sizing: border-box;
}

html, body {
  min-height: 100%;
  margin: 0;
  background: var(--bg);
  color: var(--ink);
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  line-height: 1.6;
  overscroll-behavior-y: none;
}

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

a:focus-visible {
  outline: 2px solid var(--amber);
  outline-offset: 2px;
}

.site-header {
  position: fixed;
  inset: 0 0 auto;
  height: var(--nav-h);
  display: flex;
  align-items: center;
  background: rgba(7, 11, 17, 0.86);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(14px) saturate(1.1);
  -webkit-backdrop-filter: blur(14px) saturate(1.1);
  z-index: 100;
}

.site-header__inner {
  width: var(--frame-width);
  margin: 0 auto;
  display: flex;
  align-items: center;
}

.brand-menu {
  position: relative;
}

summary::-webkit-details-marker {
  display: none;
}

.brand-pill {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: rgba(232, 237, 242, 0.92);
  color: #0b0d0e;
  padding: 10px 14px;
  border-radius: 14px;
  font-weight: 800;
  letter-spacing: 0.4px;
  cursor: pointer;
  user-select: none;
  border: 1px solid rgba(0, 0, 0, 0.12);
  text-transform: uppercase;
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.25);
}

.brand-pill:hover {
  filter: brightness(0.96);
}

.brand-menu[open] .brand-pill {
  outline: 1px dashed rgba(0, 0, 0, 0.3);
  outline-offset: 2px;
}

.brand-logo {
  height: 22px;
  width: auto;
}

.brand-text {
  font-weight: 900;
}

.caret {
  margin-left: 6px;
  opacity: 0.7;
}

.brand-dropdown {
  position: absolute;
  left: 0;
  top: calc(100% + 8px);
  min-width: 230px;
  padding: 8px;
  background: rgba(10, 15, 21, 0.95);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 12px;
  box-shadow: 0 18px 42px rgba(0, 0, 0, 0.5);
  display: grid;
  gap: 4px;
  z-index: 50;
}

.brand-dropdown a {
  display: block;
  padding: 9px 12px;
  border-radius: 8px;
  color: var(--ink);
  font: 600 14px/1 "Inter", system-ui, sans-serif;
}

.brand-dropdown a:hover {
  background: rgba(255, 255, 255, 0.08);
}

.site-main {
  flex: 1;
  padding-top: var(--nav-h);
  min-height: calc(100vh - var(--nav-h));
  display: flex;
  flex-direction: column;
  align-items: stretch;
}

body.has-hero .site-main {
  padding-top: 0;
  min-height: calc(var(--vh) * 100);
}

.hero {
  width: var(--frame-width);
  margin: 0 auto clamp(16px, 4vw, 32px);
  position: relative;
  min-height: calc(var(--vh) * 100 - var(--nav-h));
  border-radius: 20px;
  overflow: visible;
  border: 1px solid rgba(255, 255, 255, 0.18);
  box-shadow: 0 25px 50px rgba(0, 0, 0, 0.35);
}

body.has-hero .hero {
  min-height: calc(var(--vh) * 100);
}

.hero__bg {
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: #0e1319;
  background-size: cover;
  background-position: center 42%;
  background-repeat: no-repeat;
}

body.home .hero__bg {
  background-image: url("drone-stadium.jpg");
}

.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(0, 0, 0, 0.1) 0%, rgba(0, 0, 0, 0.4) 65%, rgba(0, 0, 0, 0) 100%);
  pointer-events: none;
  z-index: 1;
  border-radius: inherit;
}

.hero__menu {
  position: absolute;
  top: calc(env(safe-area-inset-top, 0px) + clamp(12px, 2.8vw, 16px));
  left: calc(env(safe-area-inset-left, 0px) + clamp(12px, 2.8vw, 16px));
  z-index: 3;
}

.hero__banner {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  background: #f7f8fa;
  color: #0b0d0e;
  padding: clamp(22px, 3.6vw, 32px) clamp(24px, 4vw, 36px);
  border-top: 1px solid rgba(0, 0, 0, 0.1);
  z-index: 2;
}

.banner__row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  flex-wrap: wrap;
}

.banner__title {
  margin: 0;
  font: 800 clamp(20px, 2.6vw, 28px) / 1.25 "Inter", system-ui, sans-serif;
}

.banner__desc {
  margin: 6px 0 0;
  font: 400 15px / 1.5 "Inter", system-ui, sans-serif;
  color: #333;
  max-width: 520px;
}

.actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.btn {
  display: inline-block;
  padding: 12px 18px;
  border-radius: 10px;
  font: 600 14px/1 "Inter", system-ui, sans-serif;
  text-align: center;
  text-decoration: none;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease, filter 0.15s ease;
}

.btn--primary {
  background: var(--accent);
  border: 1px solid var(--accent);
  color: #fff;
  font-weight: 700;
}

.btn--primary:hover {
  filter: brightness(0.95);
  transform: translateY(-1px);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.25);
}

.btn--outline {
  background: transparent;
  border: 2px solid #111;
  color: #111;
}

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

.page-frame {
  width: var(--frame-width);
  margin: clamp(24px, 6vw, 72px) auto clamp(24px, 6vw, 72px);
  padding-bottom: clamp(24px, 5vw, 64px);
}

.page-frame > * + * {
  margin-top: clamp(24px, 5vw, 48px);
}

.page-section {
  background: var(--surface-alt);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 18px;
  padding: clamp(24px, 4vw, 40px);
  box-shadow: 0 20px 45px rgba(0, 0, 0, 0.4);
}

.page-section h1 {
  margin: 0 0 12px;
  font: 800 clamp(26px, 3vw, 32px) / 1.2 "Inter", system-ui, sans-serif;
}

.page-section p {
  margin: 0 0 16px;
  color: rgba(232, 237, 242, 0.92);
}

.page-section ul {
  margin: 0;
  padding-left: 1.2rem;
  display: grid;
  gap: 10px;
  color: rgba(232, 237, 242, 0.92);
}

.page-section a {
  color: var(--amber);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-section:last-child p:last-child {
  margin-bottom: 0;
}

.page-footer {
  margin: 0;
  padding: 24px 0 32px;
  text-align: center;
  font-size: 12px;
  color: var(--muted);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

@media (max-width: 560px) {
  :root {
    --nav-h: 64px;
    --frame-width: min(100%, calc(100% - 20px));
  }

  .banner__row {
    flex-direction: column;
    align-items: stretch;
    text-align: center;
  }

  .actions {
    width: 100%;
    flex-direction: column;
  }

  .btn {
    width: 100%;
  }

  .brand-logo {
    height: 20px;
  }

  .brand-text {
    font-size: 12px;
  }
}

@media (prefers-reduced-motion: reduce) {
  * {
    animation: none !important;
    transition: none !important;
  }
}