:root {
  --et-petroleum: #0F3D4C;
  --et-petroleum-dark: #082B36;
  --et-petroleum-deep: #041B24;
  --et-technical: #3E91B8;
  --et-aqua: #62D9CB;
  --et-amber: #D9822B;
  --et-white: #F8FAFC;
  --et-graphite: #232C34;
  --et-muted: #6B7280;
  --et-border: #D7DEE6;
  --et-surface: #FFFFFF;
  --et-radius-sm: 12px;
  --et-radius: 24px;
  --et-radius-lg: 32px;
  --et-radius-xl: 40px;
  --et-space-1: 8px;
  --et-space-2: 16px;
  --et-space-3: 24px;
  --et-space-4: 32px;
  --et-space-5: 40px;
  --et-space-6: 48px;
  --et-space-8: 64px;
  --et-container: 1200px;
  --et-container-wide: 1440px;
  --et-heading: "Space Grotesk", Inter, system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  --et-body: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --et-mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  --et-shadow-card: 0 22px 64px rgba(8,43,54,.14);
  --et-shadow-soft: 0 10px 28px rgba(8,43,54,.09);
  --et-motion: 200ms cubic-bezier(.2,.8,.2,1);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin:0;
  font-family: var(--et-body);
  background: #F8FAFC;
  color:#10202A;
  line-height: 1.55;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; }
.et-container { width:min(var(--et-container),92vw); margin:auto; }
.et-container-wide { width:min(var(--et-container-wide),94vw); margin:auto; }

.et-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(248,250,252,.94);
  border-bottom: 1px solid rgba(15,61,76,.10);
  backdrop-filter: blur(18px);
}
.et-nav-inner {
  min-height: 82px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap: var(--et-space-3);
}
.et-brand {
  display:flex;
  align-items:center;
  gap:12px;
  font-family:var(--et-heading);
  font-weight:900;
  letter-spacing:-.04em;
  font-size:1.28rem;
  color:var(--et-petroleum-dark);
}
.et-brand img { width:42px; height:42px; border-radius:12px; }
.et-brand span b { color:var(--et-technical); }
.et-links { display:flex; align-items:center; gap:18px; flex-wrap:wrap; }
.et-links a { font-weight:780; color:#28353D; }
.et-links a:hover { color:var(--et-petroleum); }
.et-login {
  border:1px solid var(--et-petroleum);
  border-radius:999px;
  padding:10px 16px;
  background:#fff;
}

.et-shell-page {
  min-height: 100vh;
  background:
    radial-gradient(circle at 10% 0%, rgba(98,217,203,.13), transparent 27%),
    radial-gradient(circle at 94% 4%, rgba(217,130,43,.11), transparent 28%),
    linear-gradient(180deg,#F8FAFC 0%,#EEF6F8 100%);
}
.et-light {
  background:
    radial-gradient(circle at 8% 0%, rgba(98,217,203,.13), transparent 28%),
    radial-gradient(circle at 95% 0%, rgba(217,130,43,.12), transparent 28%),
    linear-gradient(180deg,#F8FAFC 0%,#EEF6F8 100%);
  color: #10202A;
}
.et-hero {
  position:relative;
  overflow:hidden;
  padding: 92px 0 80px;
}
.et-hero:before {
  content:"";
  position:absolute;
  inset:0;
  pointer-events:none;
  background-image:
    linear-gradient(rgba(15,61,76,.055) 1px, transparent 1px),
    linear-gradient(90deg,rgba(15,61,76,.055) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: linear-gradient(to bottom, black, transparent 78%);
}
.et-hex-pattern {
  position:absolute;
  inset:auto 0 0 auto;
  width:44%;
  min-height:420px;
  opacity:.14;
  background: radial-gradient(circle, rgba(15,61,76,.22) 1px, transparent 2px);
  background-size: 36px 36px;
  transform: skewY(-6deg);
}

.et-grid-2 { position:relative; display:grid; grid-template-columns:1.08fr .92fr; gap:48px; align-items:center; }
.et-grid-3 { display:grid; grid-template-columns:repeat(3,minmax(0,1fr)); gap:20px; }
.et-grid-4 { display:grid; grid-template-columns:repeat(4,minmax(0,1fr)); gap:18px; }

.et-kicker {
  font-size:.78rem;
  text-transform:uppercase;
  letter-spacing:.16em;
  color:var(--et-amber);
  font-weight:950;
  margin-bottom:16px;
}
h1,h2,h3 {
  font-family:var(--et-heading);
  letter-spacing:-.045em;
  line-height:1.03;
  margin:0 0 18px;
  color:var(--et-petroleum-dark);
}
h1 { font-size:clamp(2.65rem,5.6vw,5.45rem); }
h2 { font-size:clamp(1.9rem,3.25vw,3.2rem); }
h3 { font-size:1.22rem; }
.et-lead { font-size:clamp(1.08rem,1.55vw,1.25rem); color:#53626E; max-width:790px; }

.et-card {
  background: rgba(255,255,255,.94);
  color:#112530;
  border:1px solid rgba(215,222,230,.86);
  border-radius: var(--et-radius-lg);
  padding: var(--et-space-4);
  box-shadow: var(--et-shadow-card);
  transition: transform var(--et-motion), border-color var(--et-motion), box-shadow var(--et-motion);
}
.et-card:hover { transform: translateY(-2px); border-color: rgba(217,130,43,.45); }
.et-card.dark, .et-card.system {
  background: linear-gradient(145deg, rgba(15,61,76,.98), rgba(4,27,36,.98));
  color:#F8FAFC;
  border:1px solid rgba(98,217,203,.20);
}
.et-card.dark h1,.et-card.dark h2,.et-card.dark h3,
.et-card.system h1,.et-card.system h2,.et-card.system h3 { color:#fff; }
.et-card.dark p,.et-card.system p { color:rgba(248,250,252,.78); }
.et-card.system {
  position:relative;
  overflow:hidden;
}
.et-card.system:after {
  content:"";
  position:absolute;
  right:-80px; bottom:-80px;
  width:240px; height:240px;
  border:1px solid rgba(98,217,203,.18);
  clip-path: polygon(25% 6%,75% 6%,100% 50%,75% 94%,25% 94%,0 50%);
}

.et-badge {
  display:inline-flex;
  align-items:center;
  border-radius:999px;
  padding:7px 12px;
  font-weight:900;
  font-size:.84rem;
  color:var(--et-petroleum);
  background:rgba(98,217,203,.10);
  border:1px solid rgba(98,217,203,.32);
}
.et-card.dark .et-badge,.et-card.system .et-badge { color:var(--et-aqua); }

.et-actions { display:flex; flex-wrap:wrap; gap:12px; margin-top:28px; }
.et-button {
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-height:48px;
  padding:0 20px;
  border-radius:999px;
  border:1px solid var(--et-petroleum);
  font-family:var(--et-heading);
  font-weight:850;
  background:#fff;
  color:var(--et-petroleum);
  transition:all var(--et-motion);
}
.et-button:hover { transform:translateY(-1px); box-shadow:0 12px 30px rgba(8,43,54,.16); }
.et-button.primary { background:linear-gradient(135deg,var(--et-petroleum),var(--et-petroleum-dark)); color:#fff; }
.et-button.accent { background:var(--et-amber); color:#fff; border-color:var(--et-amber); }

.et-section { padding:82px 0; }
.et-module-grid { display:grid; grid-template-columns:repeat(4,minmax(0,1fr)); gap:18px; }
.et-module {
  min-height:180px;
  display:flex;
  flex-direction:column;
  justify-content:space-between;
  cursor:pointer;
}
.et-module-icon {
  width:42px;
  height:42px;
  display:grid;
  place-items:center;
  border:1px solid rgba(98,217,203,.32);
  border-radius:14px;
  color:var(--et-technical);
  font-size:1.45rem;
  background:rgba(98,217,203,.08);
}
.et-module strong { display:block; font-family:var(--et-heading); font-size:1.12rem; margin-top:16px; color:var(--et-petroleum-dark); }
.et-module p { color:#60707B; margin:8px 0 0; }

.et-metric strong { display:block; font-family:var(--et-heading); font-size:2.1rem; color:var(--et-petroleum); }
.et-progress { height:10px; background:#E6EDF2; border-radius:999px; overflow:hidden; margin-top:10px; }
.et-progress i { display:block; height:100%; background:linear-gradient(90deg,var(--et-petroleum),var(--et-amber)); border-radius:inherit; }
.et-table { width:100%; border-collapse:collapse; }
.et-table th,.et-table td { padding:13px; border-bottom:1px solid var(--et-border); text-align:left; vertical-align:top; }
.et-table th { color:var(--et-petroleum); font-weight:900; }
.et-status { font-weight:900; border-radius:999px; padding:6px 10px; display:inline-flex; }
.et-status.done,.et-status.active { background:#ECFDF5; color:#065F46; }
.et-status.pending,.et-status.proposal { background:#FFF7ED; color:#7C2D12; }
.et-status.review,.et-status.lead { background:#ECFEFF; color:#0F3D4C; }
.et-status.risk { background:#FEF2F2; color:#991B1B; }

.et-shell { display:grid; grid-template-columns:280px 1fr; gap:26px; align-items:start; }
.et-sidebar { position:sticky; top:104px; background:#fff; color:#10202A; border:1px solid var(--et-border); border-radius:28px; padding:16px; box-shadow:var(--et-shadow-card); }
.et-sidebar a { display:flex; justify-content:space-between; gap:12px; padding:12px; border-radius:16px; color:var(--et-graphite); font-weight:830; }
.et-sidebar a:hover,.et-sidebar a.active { background:rgba(15,61,76,.08); color:var(--et-petroleum); }

.et-form label { display:block; font-weight:850; margin:13px 0 7px; }
.et-form input,.et-form select,.et-form textarea { width:100%; border:1px solid var(--et-border); border-radius:16px; padding:13px; font:inherit; background:#fff; }
.et-form textarea { min-height:112px; resize:vertical; }
.et-row { display:grid; grid-template-columns:1fr 1fr; gap:14px; }
.et-step { display:none; }
.et-step.active { display:block; }
.et-kanban { display:grid; grid-template-columns:repeat(4,1fr); gap:14px; }
.et-column { background:#fff; color:#10202A; border:1px solid var(--et-border); border-radius:24px; padding:14px; min-height:340px; }
.et-mini { padding:14px; border:1px solid var(--et-border); border-radius:18px; margin-bottom:12px; background:#FAFBFC; }

.et-footer {
  border-top:1px solid rgba(15,61,76,.12);
  padding:42px 0;
  background:#fff;
  color:#60707B;
}
.et-footer-grid { display:grid; grid-template-columns:1.3fr repeat(3,1fr); gap:28px; }
.et-footer strong { color:var(--et-petroleum-dark); }
.et-footer a { display:block; margin:6px 0; color:#60707B; }

@media(max-width:1060px) {
  .et-grid-2,.et-grid-3,.et-grid-4,.et-module-grid,.et-shell,.et-row,.et-kanban,.et-footer-grid { grid-template-columns:1fr; }
  .et-sidebar { position:static; }
  .et-nav-inner { align-items:flex-start; flex-direction:column; padding:16px 0; }
}