:root {
  color-scheme: dark;
  --siro-bg: #080b0f;
  --siro-panel: #11161d;
  --siro-panel-raised: #171d25;
  --siro-border: #2b3541;
  --siro-border-soft: #202832;
  --siro-blue: #1677ff;
  --siro-blue-light: #58adff;
  --siro-green: #18a957;
  --siro-red: #d93645;
  --siro-text: #f7f9fc;
  --siro-muted: #9caabd;
  --siro-radius: 14px;
  --siro-radius-lg: 24px;
  --siro-shadow: 0 24px 75px rgba(0, 0, 0, .42);
  --siro-font: "Bahnschrift", "Aptos Display", "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-width: 320px;
  background:
    radial-gradient(circle at 12% 6%, rgba(22, 119, 255, .2), transparent 30rem),
    radial-gradient(circle at 90% 20%, rgba(24, 169, 87, .11), transparent 25rem),
    linear-gradient(145deg, #06080b 0%, #0a1017 54%, #070a0e 100%);
  color: var(--siro-text);
  font-family: var(--siro-font);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: .32;
  background-image:
    linear-gradient(rgba(255,255,255,.028) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.02) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: linear-gradient(to bottom, #000, transparent 90%);
}

button, input, select, textarea { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
a { color: inherit; }
.site-shell { position: relative; z-index: 1; }
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  border-bottom: 1px solid rgba(255,255,255,.07);
  background: rgba(8, 11, 15, .86);
  backdrop-filter: blur(18px);
}
.nav, .hero, .section, .footer {
  width: min(1220px, calc(100% - 36px));
  margin-inline: auto;
}
.nav {
  min-height: 74px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
  text-decoration: none;
}
.brand img {
  width: 46px;
  height: 46px;
  flex: 0 0 46px;
  object-fit: contain;
  padding: 4px;
  border-radius: 13px;
  background: #fff;
  box-shadow: 0 0 0 1px rgba(255,255,255,.14), 0 8px 24px rgba(0,0,0,.3);
}
.brand-copy { min-width: 0; }
.brand-copy strong {
  display: block;
  color: #e7f2ff;
  font-size: 1.38rem;
  line-height: 1;
  letter-spacing: .11em;
}
.brand-copy small {
  display: block;
  margin-top: 5px;
  color: var(--siro-muted);
  font-size: .71rem;
  line-height: 1.2;
  letter-spacing: .04em;
}
.login-button, .send-button {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid #3a91ff;
  border-radius: 10px;
  padding: 10px 20px;
  background: var(--siro-blue);
  color: #fff;
  font-weight: 800;
  text-decoration: none;
  cursor: pointer;
  transition: transform .16s ease, background-color .16s ease, box-shadow .16s ease;
}
.login-button:hover, .login-button:focus-visible {
  background: #328cff;
  box-shadow: 0 12px 30px rgba(22,119,255,.3);
  transform: translateY(-1px);
}
.hero {
  min-height: min(760px, calc(100vh - 74px));
  display: grid;
  grid-template-columns: minmax(0, 1.18fr) minmax(360px, .82fr);
  gap: 28px;
  align-items: center;
  padding: 62px 0;
}
.hero-copy { padding: 18px 0; }
.eyebrow {
  width: max-content;
  max-width: 100%;
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 8px 12px;
  border: 1px solid rgba(88,173,255,.28);
  border-radius: 999px;
  background: rgba(22,119,255,.09);
  color: #c9e5ff;
  font-size: .86rem;
  font-weight: 750;
}
.status-dot {
  width: 8px;
  height: 8px;
  flex: 0 0 8px;
  border-radius: 50%;
  background: var(--siro-green);
  box-shadow: 0 0 13px rgba(24,169,87,.85);
  animation: statusPulse 2s ease-in-out infinite;
}
.hero h1 {
  max-width: 780px;
  margin: 24px 0 20px;
  color: #fff;
  font-size: clamp(2.75rem, 6.1vw, 6rem);
  line-height: .95;
  letter-spacing: -.065em;
}
.hero-lead {
  max-width: 760px;
  margin: 0;
  color: #c4cfdd;
  font-size: clamp(1.04rem, 1.65vw, 1.26rem);
  line-height: 1.65;
}
.hero-lead strong { color: #e8f3ff; }
.hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
  margin-top: 28px;
}
.hero-tags span {
  padding: 8px 11px;
  border: 1px solid var(--siro-border);
  border-radius: 9px;
  background: rgba(17,22,29,.76);
  color: #cbd7e5;
  font-size: .84rem;
  font-weight: 700;
}
.system-card {
  position: relative;
  overflow: hidden;
  border: 1px solid rgba(88,173,255,.2);
  border-radius: 28px;
  padding: 22px;
  background: linear-gradient(155deg, rgba(21,29,39,.96), rgba(10,14,20,.94));
  box-shadow: var(--siro-shadow);
}
.system-card::before {
  content: "";
  position: absolute;
  width: 260px;
  height: 260px;
  right: -120px;
  top: -120px;
  border-radius: 50%;
  background: rgba(22,119,255,.17);
  filter: blur(20px);
}
.system-card-head {
  position: relative;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 15px;
}
.system-card-head small { color: var(--siro-blue-light); font-size: .72rem; letter-spacing: .12em; }
.system-card-head h2 { margin: 5px 0 0; font-size: 1.4rem; }
.live-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 9px;
  border: 1px solid rgba(24,169,87,.35);
  border-radius: 999px;
  color: #bff4d1;
  background: rgba(24,169,87,.08);
  font-size: .73rem;
  white-space: nowrap;
}
.live-pill span { width: 7px; height: 7px; border-radius: 50%; background: var(--siro-green); }
.system-map {
  position: relative;
  height: 300px;
  margin: 22px 0;
  border: 1px solid var(--siro-border-soft);
  border-radius: 19px;
  background:
    radial-gradient(circle at center, rgba(22,119,255,.16), transparent 50%),
    repeating-linear-gradient(0deg, transparent, transparent 31px, rgba(255,255,255,.025) 32px),
    repeating-linear-gradient(90deg, transparent, transparent 31px, rgba(255,255,255,.025) 32px),
    #0b1016;
}
.system-node {
  position: absolute;
  z-index: 2;
  min-width: 126px;
  padding: 11px 12px;
  border: 1px solid #314153;
  border-radius: 12px;
  background: #151d26;
  box-shadow: 0 10px 24px rgba(0,0,0,.34);
}
.system-node b, .system-node small { display: block; }
.system-node b { color: #fff; font-size: .92rem; }
.system-node small { margin-top: 3px; color: var(--siro-muted); font-size: .7rem; }
.node-central { left: 50%; top: 50%; transform: translate(-50%,-50%); border-color: var(--siro-blue); }
.node-web { left: 16px; top: 18px; }
.node-mobile { right: 16px; top: 18px; }
.node-nav { right: 24px; bottom: 18px; border-color: rgba(24,169,87,.55); }
.connector { position: absolute; z-index: 1; height: 1px; background: rgba(88,173,255,.48); transform-origin: left center; }
.connector-a { width: 135px; left: 118px; top: 92px; transform: rotate(32deg); }
.connector-b { width: 120px; left: 54%; top: 49%; transform: rotate(-38deg); }
.connector-c { width: 126px; left: 54%; top: 57%; transform: rotate(38deg); background: rgba(24,169,87,.46); }
.system-facts { display: grid; grid-template-columns: repeat(3, 1fr); gap: 9px; }
.system-facts div { padding: 11px; border: 1px solid var(--siro-border-soft); border-radius: 11px; background: #0d1218; }
.system-facts b, .system-facts span { display: block; }
.system-facts b { color: #dceaff; font-size: .78rem; }
.system-facts span { margin-top: 4px; color: var(--siro-muted); font-size: .68rem; line-height: 1.35; }

.section { padding: 64px 0; }
.section-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 28px;
  margin-bottom: 24px;
}
.section-heading > div { display: flex; align-items: center; gap: 13px; }
.section-number {
  display: inline-grid;
  place-items: center;
  width: 40px;
  height: 40px;
  flex: 0 0 40px;
  border: 1px solid rgba(88,173,255,.35);
  border-radius: 10px;
  background: rgba(22,119,255,.09);
  color: var(--siro-blue-light);
  font-size: .78rem;
  font-weight: 900;
}
.section-heading h2 { margin: 0; font-size: clamp(1.7rem, 3vw, 2.55rem); letter-spacing: -.035em; }
.section-heading > p { max-width: 540px; margin: 0; color: var(--siro-muted); line-height: 1.55; }
.module-tabs {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding: 7px;
  border: 1px solid var(--siro-border);
  border-radius: 14px;
  background: rgba(13,18,24,.9);
  scrollbar-width: thin;
}
.tab-button {
  min-width: max-content;
  min-height: 42px;
  padding: 8px 14px;
  border: 1px solid transparent;
  border-radius: 9px;
  background: transparent;
  color: var(--siro-muted);
  font-weight: 800;
  cursor: pointer;
}
.tab-button:hover { color: #fff; background: #171e27; }
.tab-button.active { border-color: #398fff; background: var(--siro-blue); color: #fff; }
.tab-panels { margin-top: 14px; }
.tab-panel { display: none; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.tab-panel.active { display: grid; animation: panelIn .25s ease both; }
.feature-card {
  min-height: 215px;
  padding: 20px;
  border: 1px solid var(--siro-border);
  border-radius: 18px;
  background: linear-gradient(160deg, rgba(23,29,37,.96), rgba(13,18,24,.96));
}
.feature-icon {
  display: inline-grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border: 1px solid rgba(88,173,255,.36);
  border-radius: 10px;
  color: var(--siro-blue-light);
  background: rgba(22,119,255,.08);
  font-size: .75rem;
  font-weight: 900;
}
.feature-card h3 { margin: 18px 0 10px; color: #eff6ff; font-size: 1.2rem; }
.feature-card p { margin: 0; color: #abb8c8; line-height: 1.58; }

.platform-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 17px; }
.platform-card {
  overflow: hidden;
  display: flex;
  flex-direction: column;
  border: 1px solid var(--siro-border);
  border-radius: var(--siro-radius-lg);
  background: #10151c;
  box-shadow: 0 18px 50px rgba(0,0,0,.25);
}
.platform-card figure {
  position: relative;
  height: 230px;
  margin: 0;
  overflow: hidden;
  background: #070a0d;
}
.platform-card figure::after { content: ""; position: absolute; inset: auto 0 0; height: 46%; background: linear-gradient(transparent, #10151c); }
.platform-card figure img { width: 100%; height: 100%; display: block; object-fit: cover; object-position: center; }
.platform-card .phone-media img { object-position: center 28%; }
.platform-body { display: flex; flex: 1; flex-direction: column; padding: 20px; }
.platform-label { align-self: flex-start; padding: 5px 8px; border: 1px solid rgba(88,173,255,.3); border-radius: 7px; color: #a9d4ff; font-size: .68rem; font-weight: 900; letter-spacing: .09em; }
.platform-body h3 { margin: 12px 0 8px; font-size: 1.42rem; }
.platform-body p { margin: 0; color: #aebaca; line-height: 1.55; }
.platform-body ul { display: grid; gap: 7px; margin: 18px 0 0; padding: 0; list-style: none; color: #d9e4f1; }
.platform-body li::before { content: ""; display: inline-block; width: 7px; height: 7px; margin-right: 8px; border-radius: 2px; background: var(--siro-green); }

.principle-grid { display: grid; grid-template-columns: repeat(4, 1fr); border: 1px solid var(--siro-border); border-radius: 20px; overflow: hidden; background: #0f141a; }
.principle-grid article { min-height: 155px; padding: 20px; border-right: 1px solid var(--siro-border-soft); }
.principle-grid article:last-child { border-right: 0; }
.principle-grid b { color: #e3efff; }
.principle-grid p { margin: 10px 0 0; color: var(--siro-muted); line-height: 1.5; font-size: .9rem; }

.contact-section { display: grid; grid-template-columns: minmax(0,.78fr) minmax(520px,1.22fr); gap: 38px; align-items: start; }
.contact-intro { position: sticky; top: 106px; padding: 12px 0; }
.contact-intro h2 { margin: 17px 0 13px; font-size: clamp(2rem,4vw,3.5rem); line-height: 1; letter-spacing: -.05em; }
.contact-intro > p { margin: 0; color: #b2bfce; line-height: 1.65; }
.contact-points { display: grid; gap: 11px; margin-top: 24px; color: #d6e0ec; }
.contact-points span { display: flex; align-items: center; gap: 10px; }
.contact-points i { width: 8px; height: 8px; flex: 0 0 8px; border-radius: 50%; background: var(--siro-blue); box-shadow: 0 0 12px rgba(22,119,255,.55); }
.contact-form {
  padding: 24px;
  border: 1px solid var(--siro-border);
  border-radius: var(--siro-radius-lg);
  background: linear-gradient(155deg, rgba(22,28,36,.97), rgba(12,17,23,.97));
  box-shadow: var(--siro-shadow);
}
.form-heading { margin-bottom: 18px; }
.form-heading h3 { margin: 0; font-size: 1.45rem; }
.form-heading p { margin: 5px 0 0; color: var(--siro-muted); font-size: .82rem; }
.form-grid { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 14px; }
.form-grid label { display: grid; gap: 7px; min-width: 0; }
.form-grid label > span { color: #dce6f2; font-size: .79rem; font-weight: 750; }
.full-field { grid-column: 1 / -1; }
.fire-department-fields { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 14px; padding: 14px; border: 1px solid rgba(88,173,255,.25); border-radius: 13px; background: rgba(22,119,255,.055); }
input, select, textarea {
  width: 100%;
  min-height: 44px;
  border: 1px solid var(--siro-border);
  border-radius: 9px;
  padding: 10px 12px;
  outline: none;
  background: #111821;
  color: #fff;
  transition: border-color .16s ease, box-shadow .16s ease, background-color .16s ease;
}
textarea { min-height: 128px; resize: vertical; line-height: 1.5; }
input::placeholder, textarea::placeholder { color: #718094; }
input:focus, select:focus, textarea:focus { border-color: var(--siro-blue-light); box-shadow: 0 0 0 3px rgba(22,119,255,.16); background: #141d27; }
input.invalid, select.invalid, textarea.invalid { border-color: var(--siro-red); box-shadow: 0 0 0 3px rgba(217,54,69,.12); }
.bot-field { position: absolute !important; left: -10000px !important; width: 1px !important; height: 1px !important; overflow: hidden !important; }
.form-footer { display: flex; align-items: center; justify-content: space-between; gap: 18px; margin-top: 18px; padding-top: 16px; border-top: 1px solid var(--siro-border-soft); }
.form-footer p { max-width: 420px; margin: 0; color: var(--siro-muted); font-size: .78rem; line-height: 1.45; }
.send-button { min-width: 156px; border-color: #27b962; background: #168644; }
.send-button:hover, .send-button:focus-visible { background: var(--siro-green); box-shadow: 0 12px 30px rgba(24,169,87,.24); transform: translateY(-1px); }
.send-button:disabled { opacity: .6; cursor: wait; transform: none; }
.form-message { display: none; margin-top: 14px; padding: 11px 13px; border: 1px solid var(--siro-border); border-radius: 10px; line-height: 1.45; }
.form-message.show { display: block; }
.form-message.success { border-color: #267d49; background: #0c2919; color: #c9f6d8; }
.form-message.error { border-color: #8f3038; background: #301015; color: #ffd5d8; }

.footer {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 26px;
  margin-top: 26px;
  padding: 28px 0 36px;
  border-top: 1px solid rgba(255,255,255,.08);
  color: var(--siro-muted);
  font-size: .8rem;
}
.footer .brand img { width: 38px; height: 38px; flex-basis: 38px; border-radius: 10px; }
.footer-brand .brand-copy strong { font-size: 1rem; }
.footer-brand .brand-copy small { font-size: .63rem; }
.footer p { margin: 0; text-align: center; }
.reveal { opacity: 1; }

@keyframes statusPulse { 50% { opacity: .48; transform: scale(.8); } }
@keyframes panelIn { from { opacity: 0; transform: translateY(5px); } to { opacity: 1; transform: none; } }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; animation: none !important; transition: none !important; }
}
@media (max-width: 1040px) {
  .hero { grid-template-columns: 1fr; min-height: auto; padding-top: 48px; }
  .system-card { max-width: 760px; }
  .platform-grid { grid-template-columns: 1fr; }
  .platform-card { display: grid; grid-template-columns: minmax(270px,.8fr) 1.2fr; }
  .platform-card figure { height: 100%; min-height: 270px; }
  .principle-grid { grid-template-columns: repeat(2,1fr); }
  .principle-grid article:nth-child(2) { border-right: 0; }
  .principle-grid article:nth-child(-n+2) { border-bottom: 1px solid var(--siro-border-soft); }
  .contact-section { grid-template-columns: 1fr; }
  .contact-intro { position: static; max-width: 760px; }
}
@media (max-width: 760px) {
  .nav, .hero, .section, .footer { width: min(calc(100% - 24px), 1220px); }
  .nav { min-height: 66px; display: grid; grid-template-columns: minmax(0,1fr) auto; }
  .brand-copy small { max-width: 205px; white-space: normal; }
  .login-button { min-width: 96px; padding-inline: 14px; }
  .hero { padding: 38px 0 48px; gap: 18px; }
  .hero h1 { max-width: 100%; font-size: clamp(2.55rem, 14vw, 4.2rem); overflow-wrap: break-word; }
  .system-card { padding: 15px; border-radius: 21px; }
  .system-map { height: 270px; }
  .system-node { min-width: 105px; padding: 9px; }
  .node-web { left: 8px; }
  .node-mobile { right: 8px; }
  .node-nav { right: 10px; }
  .connector { display: none; }
  .system-facts { grid-template-columns: 1fr; }
  .section { padding: 47px 0; }
  .section-heading { display: block; }
  .section-heading > p { margin-top: 12px; }
  .module-tabs { margin-inline: -1px; }
  .tab-panel { grid-template-columns: 1fr; }
  .feature-card { min-height: auto; }
  .platform-card { display: flex; }
  .platform-card figure { height: 220px; min-height: 0; }
  .principle-grid { grid-template-columns: 1fr; }
  .principle-grid article { min-height: 0; border-right: 0; border-bottom: 1px solid var(--siro-border-soft); }
  .principle-grid article:last-child { border-bottom: 0; }
  .contact-form { padding: 17px; border-radius: 18px; }
  .form-grid, .fire-department-fields { grid-template-columns: 1fr; }
  .form-footer { align-items: stretch; flex-direction: column; }
  .send-button { width: 100%; }
  .footer { grid-template-columns: 1fr; gap: 14px; text-align: center; }
  .footer .brand { justify-content: center; }
}
@media (max-width: 480px) {
  .brand img { width: 40px; height: 40px; flex-basis: 40px; }
  .brand-copy strong { font-size: 1.15rem; }
  .brand-copy small { display: none; }
  .login-button { min-height: 42px; min-width: 84px; }
  .system-card-head { display: grid; }
  .live-pill { justify-self: start; }
  .system-map { height: 300px; }
  .node-central { top: 48%; }
  .node-mobile { top: 18px; }
  .node-web { top: 93px; }
  .node-nav { bottom: 18px; }
}