/* === RESET & BASE === */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg: #0D0D0F;
  --surface: #111214;
  --surface-2: #18191C;
  --border: rgba(255,255,255,0.07);
  --text: #F4F4F5;
  --text-2: #71717A;
  --text-3: #52525B;
  --accent: #3B82F6;
  --accent-2: #22D3EE;
  --green: #10B981;
  --amber: #F59E0B;
  --red: #EF4444;
  --font-display: 'Syne', sans-serif;
  --font-body: 'DM Sans', sans-serif;
}

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* === NAVIGATION === */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 0 40px;
  height: 64px;
  display: flex;
  align-items: center;
  background: rgba(13,13,15,0.8);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 18px;
  letter-spacing: -0.02em;
  color: var(--text);
}

.logo-mark {
  width: 28px;
  height: 28px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  border-radius: 8px;
  position: relative;
}

.logo-mark::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 12px;
  height: 12px;
  background: var(--bg);
  border-radius: 3px;
}

.nav-links {
  display: flex;
  gap: 32px;
}

.nav-links span {
  font-size: 14px;
  color: var(--text-2);
  cursor: pointer;
  transition: color 0.2s;
}

.nav-links span:hover { color: var(--text); }

/* === HERO === */
.hero {
  padding: 140px 40px 80px;
}

.hero-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.hero-eyebrow {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--accent-2);
  font-weight: 500;
  margin-bottom: 24px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.eyebrow-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent-2);
  box-shadow: 0 0 8px var(--accent-2);
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

.hero-text h1 {
  font-family: var(--font-display);
  font-size: clamp(36px, 4vw, 56px);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.03em;
  color: var(--text);
  margin-bottom: 24px;
}

.hero-lede {
  font-size: 18px;
  color: var(--text-2);
  line-height: 1.7;
  max-width: 480px;
}

/* === MONITOR FRAME === */
.monitor-frame {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 40px 80px rgba(0,0,0,0.5), 0 0 0 1px rgba(59,130,246,0.1);
}

.monitor-header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
  background: var(--surface-2);
}

.monitor-dots {
  display: flex;
  gap: 6px;
}

.monitor-dots span {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--text-3);
}

.monitor-dots span:first-child { background: #FF5F57; }
.monitor-dots span:nth-child(2) { background: #FFBD2E; }
.monitor-dots span:nth-child(3) { background: #28CA41; }

.monitor-title {
  font-size: 12px;
  color: var(--text-2);
  font-weight: 500;
  flex: 1;
  text-align: center;
}

.monitor-badge {
  font-size: 10px;
  font-weight: 600;
  color: var(--green);
  background: rgba(16,185,129,0.12);
  border: 1px solid rgba(16,185,129,0.2);
  padding: 2px 8px;
  border-radius: 4px;
  letter-spacing: 0.05em;
  animation: pulse 2s ease-in-out infinite;
}

.monitor-body {
  padding: 20px;
}

.monitor-kpis {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-bottom: 16px;
}

.kpi-card {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 12px;
  border-left: 3px solid transparent;
}

.kpi-card.kpi-critical { border-left-color: var(--red); }
.kpi-card.kpi-warning { border-left-color: var(--amber); }
.kpi-card.kpi-ok { border-left-color: var(--green); }

.kpi-label {
  font-size: 10px;
  color: var(--text-2);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 4px;
}

.kpi-value {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 700;
  color: var(--text);
  line-height: 1;
  margin-bottom: 4px;
}

.kpi-trend {
  font-size: 10px;
  color: var(--text-3);
}

.monitor-alerts {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.alert-row {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 10px 12px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 8px;
  border-left: 3px solid transparent;
}

.alert-row.alert-critical { border-left-color: var(--red); }
.alert-row.alert-warning { border-left-color: var(--amber); }
.alert-row.alert-info { border-left-color: var(--accent); }

.alert-indicator {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  margin-top: 5px;
  flex-shrink: 0;
}

.alert-critical .alert-indicator { background: var(--red); box-shadow: 0 0 6px rgba(239,68,68,0.5); }
.alert-warning .alert-indicator { background: var(--amber); box-shadow: 0 0 6px rgba(245,158,11,0.5); }
.alert-info .alert-indicator { background: var(--accent); }

.alert-title {
  font-size: 12px;
  font-weight: 500;
  color: var(--text);
  margin-bottom: 3px;
}

.alert-meta {
  font-size: 10px;
  color: var(--text-2);
}

.alert-meta span {
  color: var(--accent);
  cursor: pointer;
}

/* === SYSTEM STATUS === */
.system-status {
  padding: 0 40px 60px;
}

.status-inner {
  max-width: 1200px;
  margin: 0 auto;
}

.status-strip {
  display: flex;
  align-items: center;
  gap: 32px;
  flex-wrap: wrap;
}

.status-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  color: var(--text-2);
}

.status-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
}

.status-dot-green { background: var(--green); box-shadow: 0 0 6px rgba(16,185,129,0.6); }
.status-dot-amber { background: var(--amber); }
.status-dot-red { background: var(--red); }

/* === FEATURES === */
.features {
  padding: 80px 40px;
  background: var(--surface);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.features-inner {
  max-width: 1200px;
  margin: 0 auto;
}

.section-header {
  text-align: center;
  margin-bottom: 64px;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.section-header h2 {
  font-family: var(--font-display);
  font-size: clamp(28px, 3vw, 40px);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text);
  margin-bottom: 16px;
  line-height: 1.2;
}

.section-header p {
  font-size: 16px;
  color: var(--text-2);
  line-height: 1.6;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.feature-card {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 28px;
  transition: border-color 0.3s, transform 0.3s, box-shadow 0.3s;
}

.feature-card:hover {
  border-color: rgba(59,130,246,0.3);
  transform: translateY(-2px);
  box-shadow: 0 20px 40px rgba(0,0,0,0.3);
}

.feature-icon {
  width: 44px;
  height: 44px;
  background: rgba(59,130,246,0.1);
  border: 1px solid rgba(59,130,246,0.2);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  color: var(--accent);
}

.feature-card h3 {
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 10px;
  letter-spacing: -0.01em;
}

.feature-card p {
  font-size: 14px;
  color: var(--text-2);
  line-height: 1.6;
}

/* === PRINCIPLES === */
.principles {
  padding: 80px 40px;
}

.principles-inner {
  max-width: 1200px;
  margin: 0 auto;
}

.principles-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 48px;
}

.principle {
  padding-top: 24px;
  border-top: 1px solid var(--border);
}

.principle-number {
  font-family: var(--font-display);
  font-size: 11px;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 16px;
}

.principle h4 {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 12px;
  letter-spacing: -0.01em;
}

.principle p {
  font-size: 14px;
  color: var(--text-2);
  line-height: 1.7;
}

/* === CLOSING === */
.closing {
  padding: 120px 40px;
  position: relative;
  overflow: hidden;
}

.closing-inner {
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
  position: relative;
  z-index: 1;
}

.closing-glow {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 600px;
  height: 400px;
  background: radial-gradient(ellipse at center, rgba(59,130,246,0.12) 0%, transparent 70%);
  pointer-events: none;
}

.closing h2 {
  font-family: var(--font-display);
  font-size: clamp(32px, 4vw, 52px);
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--text);
  margin-bottom: 24px;
  line-height: 1.1;
}

.closing p {
  font-size: 18px;
  color: var(--text-2);
  margin-bottom: 32px;
  line-height: 1.6;
}

.closing-statement {
  font-size: 14px;
  color: var(--text-3);
  max-width: 400px;
  margin: 0 auto;
  line-height: 1.6;
}

/* === FOOTER === */
.footer {
  border-top: 1px solid var(--border);
  padding: 60px 40px 40px;
}

.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 60px;
  margin-bottom: 48px;
}

.footer-brand p {
  font-size: 13px;
  color: var(--text-2);
  margin-top: 12px;
}

.footer-links {
  display: flex;
  gap: 60px;
}

.footer-col {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-col-title {
  font-size: 11px;
  font-weight: 600;
  color: var(--text-2);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 4px;
}

.footer-col span {
  font-size: 13px;
  color: var(--text-3);
  cursor: pointer;
  transition: color 0.2s;
}

.footer-col span:hover { color: var(--text-2); }

.footer-bottom {
  max-width: 1200px;
  margin: 0 auto;
  padding-top: 24px;
  border-top: 1px solid var(--border);
}

.footer-bottom span {
  font-size: 12px;
  color: var(--text-3);
}

/* === BUTTONS === */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 0.5rem;
  padding: 0.6rem 1.25rem; border-radius: 8px;
  font-size: 0.9rem; font-weight: 600; cursor: pointer;
  transition: all 0.2s ease; border: none; text-decoration: none; white-space: nowrap;
  font-family: var(--font-body);
}
.btn:hover { text-decoration: none; }
.btn-primary {
  background: linear-gradient(135deg, var(--accent), #2563EB);
  color: #fff;
  box-shadow: 0 0 20px rgba(59, 130, 246, 0.35);
}
.btn-primary:hover { box-shadow: 0 0 30px rgba(59, 130, 246, 0.55); transform: translateY(-1px); }
.btn-secondary { background: var(--surface-2); color: var(--text); border: 1px solid var(--border); }
.btn-secondary:hover { border-color: var(--accent); color: var(--accent); }
.btn-demo {
  background: linear-gradient(135deg, var(--accent-2), #06B6D4);
  color: #000; font-weight: 700;
  box-shadow: 0 0 24px rgba(34, 211, 238, 0.35);
}
.btn-demo:hover { box-shadow: 0 0 36px rgba(34, 211, 238, 0.6); transform: translateY(-1px); }
.btn-sm { padding: 0.4rem 0.8rem; font-size: 0.8rem; }
.btn-lg { padding: 0.9rem 2rem; font-size: 1.05rem; }
.btn-danger { background: var(--red); color: #fff; }
.btn-ghost { color: var(--text-2); }
.btn-ghost:hover { color: var(--text); background: var(--surface-2); }

/* === AUTH PAGES === */
.auth-wrap { min-height: 100vh; display: flex; align-items: center; justify-content: center; padding: 2rem; background: var(--bg); }
.auth-card { background: var(--surface); border: 1px solid var(--border); border-radius: 16px; padding: 2.5rem; width: 100%; max-width: 420px; }
.auth-card .form-group { margin-bottom: 1.25rem; }
.auth-card .form-label { display: block; font-size: 0.85rem; font-weight: 600; margin-bottom: 0.4rem; color: var(--text); }
.auth-card .form-input {
  width: 100%; padding: 0.7rem 1rem;
  background: var(--surface-2); border: 1px solid var(--border);
  border-radius: 8px; color: var(--text); font-size: 0.95rem; font-family: inherit;
  transition: border-color 0.2s;
}
.auth-card .form-input:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px rgba(59,130,246,0.1); }
.auth-card .form-input::placeholder { color: var(--text-2); }
.auth-card .form-error { color: var(--red); font-size: 0.85rem; margin-top: 0.4rem; }
.auth-title { font-family: var(--font-display); font-size: 1.5rem; font-weight: 700; margin-bottom: 0.4rem; color: var(--text); }
.auth-sub { color: var(--text-2); font-size: 0.9rem; margin-bottom: 1.75rem; }
.auth-link { color: var(--accent); font-size: 0.85rem; }
.auth-link:hover { text-decoration: underline; }
.auth-divider { display: flex; align-items: center; gap: 1rem; color: var(--text-2); font-size: 0.8rem; margin: 1.5rem 0; }
.auth-divider::before, .auth-divider::after { content: ''; flex: 1; height: 1px; background: var(--border); }

/* === DASHBOARD === */
.dash-layout { min-height: 100vh; display: flex; flex-direction: column; }
.dash-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 1rem 2rem; border-bottom: 1px solid var(--border);
  background: rgba(13,13,15,0.8); backdrop-filter: blur(12px);
  position: sticky; top: 0; z-index: 50;
}
.dash-logo { display: flex; align-items: center; gap: 0.6rem; font-family: var(--font-display); font-weight: 700; font-size: 1rem; color: var(--text); text-decoration: none; }
.dash-logo:hover { text-decoration: none; }
.dash-body { padding: 1.5rem 2rem; flex: 1; }
.dash-grid { display: grid; grid-template-columns: 1fr 300px; gap: 1.25rem; }
.dash-main {}

.stats-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0.875rem; margin-bottom: 1.25rem; }
.stat-card {
  background: var(--surface); border: 1px solid var(--border); border-radius: 12px;
  padding: 1rem 1.25rem;
}
.stat-label { font-size: 0.72rem; font-weight: 600; color: var(--text-2); text-transform: uppercase; letter-spacing: 0.06em; margin-bottom: 0.3rem; }
.stat-value { font-family: var(--font-display); font-size: 1.6rem; font-weight: 700; color: var(--text); line-height: 1; margin-bottom: 0.2rem; }
.stat-change { font-size: 0.72rem; color: var(--text-3); }

.panel { background: var(--surface); border: 1px solid var(--border); border-radius: 12px; overflow: hidden; }
.panel-header { padding: 0.875rem 1.25rem; border-bottom: 1px solid var(--border); display: flex; align-items: center; justify-content: space-between; }
.panel-title { font-family: var(--font-display); font-weight: 700; font-size: 0.875rem; color: var(--text); }
.panel-body { }
.panel-body p { padding: 0; }

.alert-item { padding: 0.875rem 1.25rem; border-bottom: 1px solid var(--border); }
.alert-item:last-child { border-bottom: none; }
.alert-item-header { display: flex; align-items: flex-start; justify-content: space-between; gap: 0.5rem; margin-bottom: 0.35rem; }
.alert-item-title { font-weight: 600; font-size: 0.875rem; color: var(--text); }
.alert-item-desc { font-size: 0.78rem; color: var(--text-2); margin: 0.3rem 0; line-height: 1.5; }
.alert-item-meta { font-size: 0.72rem; color: var(--text-3); font-family: monospace; }
.alert-actions { margin-top: 0.5rem; display: flex; gap: 0.4rem; }

.alert-badge { display: inline-flex; align-items: center; gap: 0.3rem; padding: 0.2rem 0.6rem; border-radius: 100px; font-size: 0.7rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.05em; }
.alert-badge.badge-critical { background: rgba(239,68,68,0.15); color: var(--red); border: 1px solid rgba(239,68,68,0.3); }
.alert-badge.badge-warning { background: rgba(245,158,11,0.15); color: var(--amber); border: 1px solid rgba(245,158,11,0.3); }
.alert-badge.badge-info { background: rgba(59,130,246,0.15); color: var(--accent); border: 1px solid rgba(59,130,246,0.3); }
.alert-badge.badge-ok { background: rgba(16,185,129,0.15); color: var(--green); border: 1px solid rgba(16,185,129,0.3); }

.event-item { padding: 0.65rem 1.25rem; border-bottom: 1px solid var(--border); display: flex; align-items: center; justify-content: space-between; }
.event-item:last-child { border-bottom: none; }
.event-type { font-family: monospace; font-size: 0.75rem; color: var(--text-2); }
.event-time { font-size: 0.72rem; color: var(--text-3); font-family: monospace; }
.event-flag { font-size: 0.68rem; padding: 0.15rem 0.4rem; border-radius: 4px; font-weight: 700; background: rgba(239,68,68,0.15); color: var(--red); }

.insight-item { padding: 0.875rem 1.25rem; border-bottom: 1px solid var(--border); }
.insight-item:last-child { border-bottom: none; }
.insight-text { font-size: 0.82rem; color: var(--text-2); line-height: 1.6; margin-bottom: 0.4rem; }
.insight-risk { display: flex; align-items: center; justify-content: space-between; }

.demo-banner {
  background: linear-gradient(90deg, rgba(34,211,238,0.08), rgba(59,130,246,0.08));
  border-bottom: 1px solid rgba(34,211,238,0.15);
  padding: 0.5rem 2rem; display: flex; align-items: center; justify-content: center;
  gap: 0.6rem; font-size: 0.8rem; font-weight: 600; color: var(--accent-2);
}

/* Landing page CTA buttons (in hero) */
.hero-cta { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; margin-top: 0.5rem; }
.hero-cta .btn { font-size: 0.95rem; padding: 0.75rem 1.75rem; }

/* Form alerts */
.flash-error { background: rgba(239,68,68,0.1); border: 1px solid rgba(239,68,68,0.25); border-radius: 8px; padding: 0.75rem 1rem; color: var(--red); font-size: 0.85rem; margin-bottom: 1rem; }
.flash-success { background: rgba(16,185,129,0.1); border: 1px solid rgba(16,185,129,0.25); border-radius: 8px; padding: 0.75rem 1rem; color: var(--green); font-size: 0.85rem; margin-bottom: 1rem; }

/* Contact form */
.contact-section { padding: 80px 40px; }
.contact-card { max-width: 520px; margin: 0 auto; background: var(--surface); border: 1px solid var(--border); border-radius: 16px; padding: 2.5rem; text-align: center; }
.contact-card h2 { font-family: var(--font-display); margin-bottom: 0.5rem; }
.contact-card .sub { color: var(--text-2); font-size: 0.9rem; margin-bottom: 2rem; }
.contact-card .form-group { text-align: left; margin-bottom: 1rem; }
.contact-card .form-input { width: 100%; padding: 0.7rem 1rem; background: var(--surface-2); border: 1px solid var(--border); border-radius: 8px; color: var(--text); font-size: 0.95rem; font-family: inherit; transition: border-color 0.2s; }
.contact-card .form-input:focus { outline: none; border-color: var(--accent); }
.contact-card textarea.form-input { resize: vertical; min-height: 120px; }
.contact-success { color: var(--green); padding: 1rem; font-size: 0.9rem; }

/* Scrollbar */
::-webkit-scrollbar { width: 5px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--surface-2); border-radius: 3px; }

/* ── Subscription Gating ── */
.gated-overlay {
  position: relative;
}
.gated-overlay::after {
  content: '';
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(
    0deg,
    rgba(13,13,15,0.7) 0px,
    rgba(13,13,15,0.7) 24px,
    rgba(20,20,24,0.7) 24px,
    rgba(20,20,24,0.7) 48px
  );
  border-radius: inherit;
  pointer-events: none;
}
.gated-overlay .upgrade-prompt {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  z-index: 10;
  text-align: center;
  padding: 1rem;
}
.gated-overlay .upgrade-prompt .prompt-icon {
  font-size: 1.5rem;
  margin-bottom: 4px;
}
.gated-overlay .upgrade-prompt .prompt-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--text);
}
.gated-overlay .upgrade-prompt .prompt-sub {
  font-size: 11px;
  color: var(--text-2);
  max-width: 180px;
}
.gated-overlay .upgrade-prompt .prompt-btn {
  display: inline-block;
  margin-top: 8px;
  padding: 6px 14px;
  background: var(--accent);
  color: white;
  border-radius: 6px;
  font-size: 11px;
  font-weight: 700;
  text-decoration: none;
  transition: filter 0.2s;
}
.gated-overlay .upgrade-prompt .prompt-btn:hover {
  filter: brightness(1.1);
  text-decoration: none;
}

/* Count-up animation for stat numbers */
@keyframes countUp {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}
.stat-value { animation: countUp 0.4s ease-out; }

/* Slide-in for new alert items */
@keyframes slideInRight {
  from { opacity: 0; transform: translateX(12px); }
  to { opacity: 1; transform: translateX(0); }
}
.alert-item { animation: slideInRight 0.25s ease-out; }

/* Loading skeleton shimmer */
@keyframes shimmer {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}
.skeleton-pulse {
  background: linear-gradient(90deg, var(--surface) 25%, var(--surface-2) 50%, var(--surface) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  border-radius: 6px;
}

/* Responsive */
@media (max-width: 1024px) {
  .hero-inner { grid-template-columns: 1fr; gap: 48px; }
  .hero-visual { order: -1; }
  .feature-grid { grid-template-columns: repeat(2, 1fr); }
  .principles-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .nav { padding: 0 20px; }
  .hero { padding: 120px 20px 60px; }
  .features, .principles, .closing { padding: 60px 20px; }
  .system-status { padding: 0 20px 40px; }
  .footer { padding: 40px 20px 32px; }
  
  .feature-grid { grid-template-columns: 1fr; }
  .principles-grid { grid-template-columns: 1fr; gap: 32px; }
  .footer-inner { flex-direction: column; gap: 40px; }
  .footer-links { gap: 32px; }
  .monitor-kpis { grid-template-columns: 1fr; }
  
  .status-strip { gap: 16px; }
}