:root {
  --bg-1: #07131b;
  --bg-2: #0c1f2c;
  --panel: #10283a;
  --panel-2: #13354b;
  --line: #2a5168;
  --text: #e9f5ff;
  --muted: #9bb6c8;
  --accent: #2bc2ff;
  --success: #17c17f;
  --warning: #ffcf60;
  --radius: 14px;
  --shadow: 0 20px 40px rgba(0, 0, 0, 0.26);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  font-family: "Segoe UI", Tahoma, sans-serif;
  direction: rtl;
  color: var(--text);
  background:
    radial-gradient(circle at 9% 8%, rgba(43, 194, 255, 0.16), transparent 30%),
    radial-gradient(circle at 88% 0%, rgba(23, 193, 127, 0.18), transparent 28%),
    linear-gradient(160deg, var(--bg-1) 0%, var(--bg-2) 48%, #113048 100%);
  min-height: 100vh;
}

body.light-theme {
  --bg-1: #e7f6ff;
  --bg-2: #d4ecfb;
  --panel: #f6fcff;
  --panel-2: #eaf7ff;
  --line: #a5cfdf;
  --text: #173444;
  --muted: #4d7183;
  --accent: #137db2;
  --success: #138558;
  --warning: #d89e1b;
  background:
    radial-gradient(circle at 9% 8%, rgba(19, 125, 178, 0.1), transparent 35%),
    radial-gradient(circle at 88% 0%, rgba(19, 133, 88, 0.1), transparent 28%),
    linear-gradient(160deg, var(--bg-1) 0%, var(--bg-2) 100%);
}

.app-loader {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: grid;
  place-items: center;
  gap: 10px;
  background: radial-gradient(circle at center, #10283a 0%, #07131b 62%);
  color: #d9f1ff;
  transition: opacity 260ms ease, visibility 260ms ease;
}

.app-loader p {
  margin: 0;
  font-size: 0.92rem;
  letter-spacing: 0.3px;
  opacity: 0.85;
}

.loader-core {
  width: 46px;
  height: 46px;
  border-radius: 50%;
  border: 3px solid rgba(255, 255, 255, 0.2);
  border-top-color: var(--accent);
  border-right-color: var(--success);
  animation: spin 0.9s linear infinite;
}

.app-loader.done {
  opacity: 0;
  visibility: hidden;
}

nav {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 14px 24px;
  background: rgba(7, 19, 27, 0.82);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(10px);
}

.nav-actions {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.theme-toggle {
  border: 1px solid rgba(255, 255, 255, 0.2);
  background: rgba(255, 255, 255, 0.1);
  color: var(--text);
  border-radius: 10px;
  width: 36px;
  height: 36px;
  cursor: pointer;
  transition: transform 170ms ease, background 170ms ease;
}

.theme-toggle:hover {
  transform: translateY(-1px);
  background: rgba(255, 255, 255, 0.18);
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
  text-decoration: none;
  font-weight: 800;
  letter-spacing: 0.2px;
}

.logo-mark {
  width: 34px;
  height: 34px;
  display: inline-grid;
  place-items: center;
  border-radius: 10px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  background: linear-gradient(135deg, rgba(43, 194, 255, 0.2), rgba(23, 193, 127, 0.22));
  color: #e7fcff;
  font-weight: 900;
  font-size: 0.92rem;
}

.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border: 1px solid rgba(23, 193, 127, 0.45);
  background: rgba(23, 193, 127, 0.12);
  color: #dfffee;
  border-radius: 999px;
  font-size: 0.82rem;
  font-weight: 700;
  padding: 7px 11px;
}

.pulse {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--success);
  box-shadow: 0 0 0 rgba(23, 193, 127, 0.5);
  animation: pulse 1.6s infinite;
}

.hero {
  max-width: 1180px;
  margin: 28px auto 18px;
  padding: 30px 22px;
}

.hero-content {
  border: 1px solid var(--line);
  border-radius: calc(var(--radius) + 4px);
  background: linear-gradient(145deg, rgba(19, 53, 75, 0.93), rgba(16, 40, 58, 0.9));
  box-shadow: var(--shadow);
  padding: 28px;
  text-align: center;
}

.patent-info {
  display: inline-block;
  border: 1px solid rgba(255, 207, 96, 0.45);
  background: rgba(255, 207, 96, 0.14);
  color: #ffe8a9;
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.25px;
  padding: 6px 12px;
}

h1 {
  margin: 16px 0 8px;
  font-size: clamp(1.6rem, 3.2vw, 2.45rem);
  line-height: 1.35;
}

.highlight {
  color: var(--accent);
}

.subtitle {
  margin: 0;
  color: var(--muted);
  font-size: 1rem;
}

.btn-launch {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  border: 1px solid rgba(43, 194, 255, 0.55);
  background: linear-gradient(135deg, rgba(43, 194, 255, 0.2), rgba(23, 193, 127, 0.2));
  color: #eaffff;
  padding: 10px 14px;
  border-radius: 11px;
  font-weight: 800;
  font-size: 0.92rem;
  cursor: pointer;
  transition: transform 180ms ease, box-shadow 180ms ease, border-color 180ms ease;
}

.btn-launch:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 22px rgba(43, 194, 255, 0.24);
  border-color: var(--accent);
}

.stats-grid {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 22px;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}

.quick-links {
  max-width: 1180px;
  margin: 10px auto 4px;
  padding: 0 22px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.quick-links a {
  text-decoration: none;
  color: var(--text);
  border: 1px solid rgba(255, 255, 255, 0.16);
  background: rgba(255, 255, 255, 0.05);
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 700;
  padding: 7px 11px;
}

.quick-links a:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.stat-card {
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: var(--radius);
  background: rgba(16, 40, 58, 0.86);
  text-align: center;
  padding: 14px;
}

.stat-val {
  display: block;
  color: var(--accent);
  font-size: 1.45rem;
  font-weight: 900;
}

.stat-card p {
  margin: 4px 0 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.modules-grid {
  max-width: 1180px;
  margin: 18px auto;
  padding: 0 22px;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.module-card {
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: var(--radius);
  background: linear-gradient(160deg, rgba(16, 40, 58, 0.95), rgba(13, 31, 45, 0.9));
  padding: 16px;
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.2);
}

.module-icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  border: 1px solid rgba(43, 194, 255, 0.35);
  display: inline-grid;
  place-items: center;
  color: var(--accent);
  font-size: 1.2rem;
  margin-bottom: 10px;
  background: rgba(43, 194, 255, 0.08);
}

.module-card h3 {
  margin: 0 0 8px;
  font-size: 1.1rem;
}

.module-card p {
  margin: 0;
  color: var(--muted);
  line-height: 1.6;
  min-height: 64px;
}

.badge-row {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin: 12px 0;
}

.badge {
  border: 1px solid rgba(255, 255, 255, 0.2);
  background: rgba(255, 255, 255, 0.06);
  color: #d9eefe;
  border-radius: 999px;
  font-size: 0.74rem;
  font-weight: 700;
  padding: 5px 10px;
}

.module-action {
  width: 100%;
}

.scada-section {
  max-width: 1180px;
  margin: 18px auto;
  padding: 16px 22px 0;
}

.scada-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.chart-box {
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: var(--radius);
  background: rgba(16, 40, 58, 0.88);
  padding: 16px;
}

.chart-container {
  height: 240px;
}

footer {
  max-width: 1180px;
  margin: 20px auto 24px;
  padding: 22px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: var(--radius);
  background: rgba(8, 22, 31, 0.82);
  text-align: center;
  color: var(--muted);
}

.footer-logo {
  display: block;
  color: var(--text);
  font-weight: 800;
  margin-bottom: 8px;
}

@keyframes pulse {
  0% {
    box-shadow: 0 0 0 0 rgba(23, 193, 127, 0.5);
  }
  70% {
    box-shadow: 0 0 0 10px rgba(23, 193, 127, 0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(23, 193, 127, 0);
  }
}

@keyframes spin {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

@media (max-width: 980px) {
  .stats-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .modules-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .scada-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  nav,
  .hero,
  .stats-grid,
  .quick-links,
  .modules-grid,
  .scada-section,
  footer {
    padding-left: 14px;
    padding-right: 14px;
  }

  .hero-content {
    padding: 22px 14px;
  }

  .stats-grid,
  .modules-grid {
    grid-template-columns: 1fr;
  }

  .module-card p {
    min-height: unset;
  }
}