/* Feral Drones base layout CSS
   Theme-specific colors live in theme-dark.css and theme-light.css. */

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
  min-width: 320px;
  overflow-x: hidden;
}
img, svg { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button, input, textarea { font: inherit; }
::selection { background: var(--accent); color: #fff; }

.skip-link {
  position: fixed;
  top: .75rem;
  left: .75rem;
  z-index: 9999;
  transform: translateY(-150%);
  padding: .7rem .9rem;
  background: var(--surface-strong);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: .75rem;
}
.skip-link:focus { transform: translateY(0); }

.container {
  width: min(100% - clamp(2rem, 6vw, 7rem), 1320px);
  margin-inline: auto;
}

.section {
  position: relative;
  padding: clamp(4.2rem, 6.5vw, 6.4rem) 0;
  border-top: 1px solid var(--border-soft);
}
.section--hero {
  min-height: min(805px, 88svh);
  padding: clamp(4.25rem, 5.8vw, 5.6rem) 0 clamp(2.2rem, 3.8vw, 3.2rem);
  display: grid;
  align-items: center;
  border-top: 0;
}

.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 100;
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--border-soft);
  background: var(--header-bg);
  transition: background .25s ease, border-color .25s ease;
}
.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.2rem;
  min-height: 72px;
}
.brand, .footer__brand { display: inline-flex; align-items: center; }
.brand__logo { height: 38px; width: auto; }
.brand__logo--light { display: none; }
.nav {
  display: flex;
  align-items: center;
  gap: clamp(1rem, 2vw, 2.3rem);
  font-size: .76rem;
  text-transform: uppercase;
  letter-spacing: .12em;
  font-weight: 800;
  color: var(--muted);
}
.nav a { transition: color .2s ease; }
.nav a:hover, .nav a:focus-visible { color: var(--text); }
.header__actions { display: flex; align-items: center; gap: .8rem; }

.menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border: 1px solid var(--border);
  border-radius: .85rem;
  background: var(--surface);
  color: var(--text);
  cursor: pointer;
}
.menu-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  margin: 4px auto;
  background: currentColor;
  border-radius: 999px;
}

.theme-toggle {
  display: inline-flex;
  align-items: center;
  gap: .45rem;
  min-height: 38px;
  padding: 0 .75rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--surface);
  color: var(--muted);
  cursor: pointer;
  font-size: .72rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: .08em;
}
.theme-toggle__icon {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 18px var(--accent-glow);
}

.language-switch {
  display: inline-flex;
  align-items: center;
  min-height: 38px;
  padding: .18rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--surface);
}
.language-switch a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 36px;
  min-height: 30px;
  padding: 0 .55rem;
  border-radius: 999px;
  color: var(--muted);
  font-size: .7rem;
  font-weight: 900;
  letter-spacing: .08em;
  text-transform: uppercase;
}
.language-switch a:hover, .language-switch a:focus-visible { color: var(--text); }
.language-switch a.is-active {
  color: #fff;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  box-shadow: 0 10px 28px var(--accent-shadow);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .65rem;
  min-height: 52px;
  padding: 0 1.35rem;
  border-radius: .85rem;
  border: 1px solid transparent;
  font-weight: 900;
  letter-spacing: .06em;
  text-transform: uppercase;
  font-size: .82rem;
  cursor: pointer;
  transition: transform .2s ease, background .2s ease, border-color .2s ease, color .2s ease, box-shadow .2s ease;
}
.btn:hover { transform: translateY(-2px); }
.btn--small { min-height: 42px; padding-inline: 1rem; font-size: .72rem; }
.btn--primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #fff;
  box-shadow: 0 16px 42px var(--accent-shadow);
}
.btn--ghost {
  color: var(--accent);
  border-color: var(--border);
  background: var(--surface);
}
.text-link {
  display: inline-flex;
  align-items: center;
  gap: .55rem;
  margin-top: 1.5rem;
  color: var(--accent);
  font-weight: 900;
  letter-spacing: .08em;
  text-transform: uppercase;
  font-size: .8rem;
}

.hero__bg { position: absolute; inset: 0; pointer-events: none; overflow: hidden; }
.hero__grid {
  position: absolute;
  inset: 72px 0 auto;
  height: min(76vh, 760px);
  opacity: var(--grid-opacity);
  background-image:
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: linear-gradient(to bottom, transparent, #000 15%, #000 65%, transparent);
}
.hero__glow { position: absolute; border-radius: 50%; filter: blur(70px); opacity: .56; }
.hero__glow--one { width: 36rem; height: 36rem; right: -10rem; top: 6rem; background: var(--accent-glow); }
.hero__glow--two { width: 24rem; height: 24rem; left: 14%; bottom: 10%; background: var(--accent-glow-soft); }

.hero__layout {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, .94fr) minmax(440px, 1.06fr);
  align-items: center;
  gap: clamp(1.35rem, 3vw, 2.6rem);
}
.hero__content { padding-top: .1rem; }
.eyebrow {
  margin: 0 0 .6rem;
  color: var(--accent);
  font-size: .82rem;
  font-weight: 900;
  letter-spacing: .18em;
  text-transform: uppercase;
}
h1, h2, h3, p { margin-top: 0; }
h1 {
  max-width: 760px;
  margin-bottom: 1.1rem;
  font-size: clamp(3.1rem, 5.35vw, 4.8rem);
  line-height: .93;
  letter-spacing: -.075em;
  font-weight: 950;
}
h1 span, h2 span, .site-footer span { color: var(--accent); }
.hero__lead {
  max-width: 640px;
  color: var(--muted);
  font-size: clamp(.98rem, 1.08vw, 1.14rem);
}
.hero__cta { display: flex; flex-wrap: wrap; gap: .85rem; margin-top: 1.25rem; }

.hero__visual { min-width: 0; }
.drone-card {
  position: relative;
  min-height: clamp(380px, 37vw, 545px);
  border-radius: 2rem;
  overflow: hidden;
  background:
    radial-gradient(circle at 63% 42%, var(--visual-glow), transparent 34%),
    linear-gradient(135deg, var(--surface), transparent),
    var(--surface-soft);
  border: 1px solid var(--border-soft);
  box-shadow: var(--shadow-hero);
}
.drone-card__blueprint {
  position: absolute;
  inset: 10% -10% auto auto;
  width: 78%;
  opacity: var(--blueprint-opacity);
  mix-blend-mode: var(--blueprint-blend);
  z-index: 1;
}
.drone-card__image {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 38% center;
  z-index: 2;
}
.status-panel {
  position: absolute;
  right: 1.4rem;
  bottom: 1.4rem;
  width: min(235px, 34%);
  padding: 1rem;
  border: 1px solid var(--border);
  border-radius: 1rem;
  background: var(--panel-bg);
  backdrop-filter: blur(18px);
  box-shadow: var(--shadow-card);
  z-index: 3;
}
.status-panel span {
  display: block;
  margin-top: .7rem;
  color: var(--accent);
  font-size: .68rem;
  text-transform: uppercase;
  letter-spacing: .12em;
  font-weight: 900;
}
.status-panel span:first-child { margin-top: 0; }
.status-panel strong { display: block; margin-top: .12rem; font-size: .85rem; text-transform: uppercase; }
.status-panel i { display: block; height: 5px; margin-top: .9rem; border-radius: 999px; background: linear-gradient(90deg, var(--accent), transparent 78%); }

.benefits {
  position: relative;
  border-block: 1px solid var(--border-soft);
  background: var(--benefits-bg);
}
.benefits__grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
}
.benefit-card {
  min-height: 134px;
  padding: 1.15rem 1.1rem;
  border-right: 1px solid var(--border-soft);
  display: grid;
  align-content: center;
  justify-items: center;
  text-align: center;
}
.benefit-card:first-child { border-left: 1px solid var(--border-soft); }
.benefit-card img, .feature-card img, .process-card img { width: 32px; height: 32px; margin-bottom: .75rem; }
.benefit-card h2, .feature-card h3, .process-card h3, .product-card h3 {
  margin-bottom: .28rem;
  font-size: .92rem;
  letter-spacing: .04em;
  text-transform: uppercase;
}
.benefit-card p, .feature-card p, .process-card p, .product-card p { margin: 0; color: var(--muted); font-size: .88rem; }

.split-layout, .usecase-layout {
  display: grid;
  grid-template-columns: minmax(0, .78fr) minmax(420px, 1fr);
  gap: clamp(2rem, 6vw, 6rem);
  align-items: center;
}
.split-layout--system { align-items: start; }
.section-copy h2, .section-heading h2, .cta-panel h2, .about-card h2 {
  margin-bottom: 1rem;
  font-size: clamp(2.2rem, 4.1vw, 4.8rem);
  line-height: .98;
  letter-spacing: -.055em;
}
.section-copy p, .section-heading p, .cta-panel p, .about-card p { color: var(--muted); font-size: 1.05rem; }
.copy-block {
  margin-top: 1.75rem;
  padding: 1.2rem 1.3rem;
  border: 1px solid var(--border-soft);
  border-radius: 1rem;
  background: var(--surface);
}
.copy-block h3 {
  margin-bottom: .75rem;
  font-size: .95rem;
  letter-spacing: .08em;
  text-transform: uppercase;
}
.check-list {
  list-style: none;
  display: grid;
  gap: .7rem;
  margin: 0;
  padding: 0;
}
.check-list li {
  position: relative;
  padding-left: 1.45rem;
  color: var(--text);
}
.check-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .48rem;
  width: .55rem;
  height: .55rem;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 18px var(--accent-glow);
}
.check-list--compact li { font-size: .95rem; color: var(--muted); }
.stats-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
  margin: 2rem 0 0;
}
.stats-grid div {
  padding: 1rem;
  border: 1px solid var(--border-soft);
  border-radius: 1rem;
  background: var(--surface);
}
.stats-grid dt { font-size: 1.2rem; font-weight: 950; color: var(--text); }
.stats-grid dd { margin: .25rem 0 0; color: var(--muted); font-size: .85rem; }

.product-grid {
  display: grid;
  gap: 1rem;
}
.product-card {
  padding: 1.5rem;
  border: 1px solid var(--border-soft);
  border-radius: 1.35rem;
  background: var(--card-bg);
  box-shadow: var(--shadow-card-soft);
}
.product-card--accent {
  border-color: var(--accent-border);
  box-shadow: 0 18px 60px var(--accent-focus);
}
.product-card__eyebrow {
  margin-bottom: .7rem !important;
  color: var(--accent);
  font-size: .76rem !important;
  font-weight: 900;
  letter-spacing: .14em;
  text-transform: uppercase;
}
.product-card__eyebrow span { color: var(--muted); }

.section-heading { max-width: 760px; margin: 0 auto 3rem; text-align: center; }
.section-heading--left { margin-inline: 0; text-align: left; }
.process-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1rem;
}
.process-card, .feature-card {
  position: relative;
  padding: 1.4rem;
  border: 1px solid var(--border-soft);
  border-radius: 1.25rem;
  background: var(--card-bg);
  box-shadow: var(--shadow-card-soft);
}
.process-card span {
  position: absolute;
  right: 1rem; top: 1rem;
  color: var(--accent);
  font-weight: 950;
  opacity: .55;
}
.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}
.feature-card { min-height: 220px; }

.section--usecases { background: var(--section-alt); }
.usecase-list { display: grid; gap: .85rem; }
.usecase-list article {
  display: grid;
  gap: .25rem;
  padding: 1.2rem 1.3rem;
  border: 1px solid var(--border-soft);
  border-radius: 1rem;
  background: var(--card-bg);
}
.usecase-list strong { font-size: 1.05rem; }
.usecase-list span { color: var(--muted); }

.highlight-panel {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}
.highlight-panel__item {
  padding: 1.35rem;
  border: 1px solid var(--border-soft);
  border-radius: 1.25rem;
  background: var(--card-bg);
  box-shadow: var(--shadow-card-soft);
}
.highlight-panel__item span {
  display: block;
  margin-bottom: .6rem;
  color: var(--accent);
  font-size: .76rem;
  font-weight: 900;
  letter-spacing: .12em;
  text-transform: uppercase;
}
.highlight-panel__item strong {
  display: block;
  font-size: 1.05rem;
  line-height: 1.35;
}

.about-card {
  display: grid;
  grid-template-columns: minmax(0, .85fr) minmax(0, 1fr);
  gap: clamp(2rem, 6vw, 5rem);
  padding: clamp(2rem, 5vw, 4rem);
  border: 1px solid var(--border-soft);
  border-radius: 2rem;
  background: var(--card-bg);
  box-shadow: var(--shadow-card-soft);
}

.cta-panel {
  display: grid;
  grid-template-columns: minmax(0, .82fr) minmax(360px, .72fr);
  gap: clamp(2rem, 6vw, 5rem);
  padding: clamp(2rem, 5vw, 4rem);
  border: 1px solid var(--accent-border);
  border-radius: 2rem;
  background: var(--cta-bg);
  box-shadow: var(--shadow-card);
}
.contact-methods {
  display: grid;
  gap: .85rem;
  margin-top: 1.6rem;
}
.contact-method {
  display: grid;
  gap: .15rem;
  padding: 1rem 1.1rem;
  border: 1px solid var(--border-soft);
  border-radius: 1rem;
  background: var(--surface);
}
.contact-method strong {
  font-size: .75rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--accent);
}
.contact-method span { color: var(--text); font-weight: 700; }
.contact-form { display: grid; gap: .9rem; }
.contact-form label { display: grid; gap: .4rem; }
.contact-form span { color: var(--muted); font-size: .78rem; text-transform: uppercase; letter-spacing: .1em; font-weight: 900; }
.contact-form input, .contact-form textarea {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: .9rem;
  background: var(--field-bg);
  color: var(--text);
  padding: .95rem 1rem;
  outline: none;
}
.contact-form input:focus, .contact-form textarea:focus { border-color: var(--accent); box-shadow: 0 0 0 4px var(--accent-focus); }
.contact-form textarea { resize: vertical; }

.site-footer {
  border-top: 1px solid var(--border-soft);
  padding: 2.3rem 0;
  background: var(--footer-bg);
}
.footer__inner {
  display: grid;
  grid-template-columns: auto minmax(180px, 1fr) auto auto;
  align-items: center;
  gap: 2rem;
}
.footer__brand img { height: 36px; }
.site-footer p, .site-footer small { margin: 0; color: var(--muted); font-size: .88rem; }
.site-footer nav { display: flex; gap: 1.2rem; color: var(--muted); font-size: .72rem; text-transform: uppercase; letter-spacing: .1em; font-weight: 800; }
.site-footer a:hover { color: var(--text); }

.reveal { opacity: 0; transform: translateY(24px); transition: opacity .7s ease, transform .7s ease; }
.reveal.is-visible { opacity: 1; transform: translateY(0); }
.reveal--delay { transition-delay: .12s; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; scroll-behavior: auto !important; transition-duration: .01ms !important; }
  .reveal { opacity: 1; transform: none; }
}

@media (max-width: 1100px) {
  .nav { display: none; }
  .menu-toggle { display: inline-block; }
  .header__actions .btn { display: none; }
  .nav.is-open {
    display: grid;
    position: absolute;
    top: calc(100% + 1px);
    left: 0; right: 0;
    padding: 1rem clamp(1rem, 5vw, 3rem) 1.25rem;
    background: var(--mobile-menu-bg);
    border-bottom: 1px solid var(--border-soft);
    box-shadow: var(--shadow-card);
  }
  .nav.is-open a { padding: .85rem 0; border-bottom: 1px solid var(--border-soft); }
  .hero__layout, .split-layout, .usecase-layout, .cta-panel, .about-card { grid-template-columns: 1fr; }
  .hero__content { width: 100%; max-width: none; }
  .hero__content h1, .hero__lead { max-width: none; }
  .hero__visual { order: -1; }
  .drone-card { min-height: 420px; }
  .benefits__grid, .process-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .feature-grid, .highlight-panel { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .footer__inner { grid-template-columns: 1fr; justify-items: start; }
}

@media (max-width: 720px) {
  .container { width: min(100% - 1.35rem, 1320px); }
  .header__inner { min-height: 66px; }
  .brand__logo { height: 32px; }
  .theme-toggle__text { display: none; }
  .language-switch a { min-width: 34px; }
  .section--hero { padding-top: 5.2rem; min-height: auto; padding-bottom: 2.4rem; }
  .hero__layout { gap: 1.6rem; }
  h1 { font-size: clamp(2.6rem, 9.4vw, 3.75rem); line-height: .94; }
  .hero__cta { display: grid; margin-top: 1.25rem; }
  .btn { width: 100%; }
  .drone-card { min-height: 330px; border-radius: 1.35rem; }
  .drone-card__image { object-position: 44% center; }
  .status-panel { width: min(240px, calc(100% - 1.2rem)); right: .85rem; left: auto; bottom: .85rem; padding: .9rem; }
  .benefits__grid, .process-grid, .feature-grid, .stats-grid, .highlight-panel { grid-template-columns: 1fr; }
  .benefit-card, .benefit-card:first-child { border-left: 0; border-right: 0; border-bottom: 1px solid var(--border-soft); }
  .copy-block, .product-card { padding: 1.1rem; }
  .about-card, .cta-panel { padding: 1.25rem; border-radius: 1.35rem; }
  .footer__inner nav { flex-wrap: wrap; }
}

@media (max-width: 420px) {
  .drone-card { min-height: 300px; }
  .status-panel { width: min(210px, calc(100% - 1rem)); right: .7rem; bottom: .7rem; padding: .8rem; }
  .status-panel span { font-size: .62rem; }
  .status-panel strong { font-size: .76rem; }
  h1 { font-size: clamp(2.08rem, 9.2vw, 2.75rem); }
  .language-switch a { min-width: 32px; padding: 0 .45rem; }
}