:root {
  --bg: #080d18;
  --panel: #101827;
  --panel2: #131f31;
  --border: #233249;
  --text: #edf4ff;
  --muted: #8d9bb0;
  --cyan: #35d5f2;
  --blue: #5488ff;
  --green: #30d69a;
  --red: #ff657a;
  --font: "Inter", sans-serif;
  --mono: "JetBrains Mono", monospace;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; scroll-padding-top: 25px; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 14px;
}
a { color: inherit; text-decoration: none; }
.dashboard { min-height: 100vh; }

.sidebar {
  width: 245px;
  position: fixed;
  inset: 0 auto 0 0;
  z-index: 10;
  background: #0b1321;
  border-right: 1px solid var(--border);
  padding: 28px 18px;
  display: flex;
  flex-direction: column;
}
.brand { display: flex; gap: 12px; align-items: center; margin-bottom: 55px; }
.brand-icon {
  width: 42px; height: 42px; border-radius: 12px;
  background: linear-gradient(135deg, #087caa, #345cf5);
  display: grid; place-items: center; font-size: 23px;
  font-weight: 800; position: relative;
}
.brand-icon .pulse {
  position: absolute; width: 7px; height: 7px;
  background: var(--green); border-radius: 50%; right: 5px; top: 5px;
  box-shadow: 0 0 10px var(--green);
}
.brand h2 { font-size: 17px; letter-spacing: 1px; }
.brand h2 span { color: var(--cyan); }
.brand small { color: var(--muted); font-size: 8px; letter-spacing: 1.2px; }

.nav-label, .eyebrow, .breadcrumb, .demo-label {
  color: #71839c; font-family: var(--mono);
  font-size: 10px; letter-spacing: 1.3px;
}
.nav-label { margin: 0 0 15px 12px; }
.sidebar nav { display: grid; gap: 7px; }
.nav-link {
  padding: 13px 12px; border-radius: 8px;
  color: #9eacc0; display: flex; gap: 12px; align-items: center;
  transition: .2s;
}
.nav-link:hover, .nav-link.active {
  background: #17283d; color: var(--cyan);
}
.sidebar-bottom { margin-top: auto; }
.availability, .profile { display: flex; align-items: center; gap: 11px; }
.availability {
  padding: 14px 8px; border-bottom: 1px solid var(--border);
  margin-bottom: 17px;
}
.availability strong, .profile strong { display: block; font-size: 11px; }
.availability small, .profile small { color: var(--muted); font-size: 10px; }
.status-dot {
  display: inline-block; width: 7px; height: 7px;
  border-radius: 50%; background: var(--green);
  box-shadow: 0 0 9px #30d69a77; flex-shrink: 0;
}
.avatar {
  width: 35px; height: 35px; border-radius: 50%;
  display: grid; place-items: center; color: var(--cyan);
  background: #1c3851; font-weight: 700;
}

.main-content { margin-left: 245px; padding: 0 38px 30px; max-width: 1700px; }
.topbar {
  min-height: 92px; border-bottom: 1px solid var(--border);
  display: flex; justify-content: space-between; align-items: center;
  gap: 20px; margin-bottom: 30px;
}
.breadcrumb { font-size: 9px; }
.topbar h3 { margin-top: 7px; font-size: 18px; }
.topbar-right { display: flex; align-items: center; gap: 22px; }
.clock-box { text-align: right; display: grid; gap: 3px; }
.clock-box small { color: var(--muted); font-size: 8px; }
.clock-box strong { font: 17px var(--mono); color: var(--cyan); }
.clock-box span { color: var(--muted); font-size: 10px; }
.online-badge, .live-indicator {
  display: flex; align-items: center; gap: 8px;
  color: var(--green); font: 10px var(--mono);
  border: 1px solid #30d69a44; padding: 9px 11px; border-radius: 6px;
  white-space: nowrap;
}

.welcome {
  min-height: 260px; padding: 35px 38px;
  border: 1px solid var(--border); border-radius: 14px;
  background:
    radial-gradient(ellipse at 80% 40%, #12304b 0%, transparent 42%),
    linear-gradient(120deg, #101d30, #0d1726);
  display: flex; align-items: center; justify-content: space-between;
  gap: 30px; overflow: hidden;
}
.welcome h1 { font-size: clamp(28px, 4vw, 43px); margin: 13px 0; }
.welcome h1 span { color: var(--cyan); }
.welcome p { max-width: 560px; line-height: 1.8; color: var(--muted); }
.welcome-actions { display: flex; gap: 12px; margin-top: 23px; }
.primary-btn, .secondary-btn {
  display: inline-flex; justify-content: center; align-items: center;
  border: 0; border-radius: 7px; padding: 12px 17px;
  font: 600 12px var(--font); cursor: pointer; transition: .2s;
}
.primary-btn { background: linear-gradient(110deg, #087fae, #426bf4); color: white; }
.primary-btn:hover { filter: brightness(1.2); transform: translateY(-2px); }
.secondary-btn { color: var(--text); border: 1px solid var(--border); background: #ffffff08; }
.secondary-btn:hover { border-color: var(--cyan); }

.server-visual { width: 190px; flex-shrink: 0; }
.rack {
  padding: 12px; border: 1px solid #38526d; border-radius: 10px;
  background: #08111e; box-shadow: 0 15px 40px #0008;
}
.rack-unit {
  height: 35px; margin: 6px 0; border: 1px solid #28445d;
  background: linear-gradient(90deg, #152c40, #0c1929);
  border-radius: 4px; display: flex; align-items: center; gap: 7px; padding: 0 10px;
}
.rack-unit span { width: 5px; height: 5px; background: var(--cyan); border-radius: 50%; box-shadow: 0 0 8px var(--cyan); }
.rack-unit i { width: 4px; height: 4px; background: var(--green); border-radius: 50%; animation: blink 1.3s infinite alternate; }
.rack-unit i:last-child { animation-delay: .6s; }
.rack-caption { text-align: center; margin-top: 12px; color: var(--cyan); font: 9px var(--mono); letter-spacing: 2px; }
@keyframes blink { from { opacity: .25; } to { opacity: 1; } }

.panel-section { margin-top: 38px; }
.monitoring-section { margin-top: 32px; }
.section-heading {
  display: flex; justify-content: space-between; align-items: center;
  gap: 15px; margin-bottom: 19px;
}
.section-heading h2 { font-size: 20px; margin-top: 7px; }
.live-indicator { font-size: 9px; }
.metrics {
  display: grid; grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 15px;
}
.metric-card, .server-card {
  background: linear-gradient(145deg, #111d2e, #0e1725);
  border: 1px solid var(--border); border-radius: 11px;
  padding: 20px; min-width: 0; transition: border-color .2s, transform .2s;
}
.metric-card:hover, .server-card:hover { border-color: #3b7794; transform: translateY(-2px); }
.metric-heading {
  display: flex; justify-content: space-between; align-items: center;
  color: #8d9bb0; font: 9px var(--mono); letter-spacing: 1px;
}
.metric-heading span { color: var(--cyan); font-size: 9px; }
.metric-card h2 { font: 600 27px var(--mono); margin: 17px 0 6px; color: var(--text); }
.metric-card p { color: var(--muted); font: 10px var(--mono); min-height: 15px; }
.metric-progress { height: 5px; background: #26364a; border-radius: 5px; margin: 17px 0 13px; overflow: hidden; }
.metric-progress div { width: 0; height: 100%; background: linear-gradient(90deg, var(--cyan), var(--blue)); border-radius: inherit; transition: width .6s ease; }
.metric-foot { color: #74869d; font: 9px var(--mono); letter-spacing: .8px; }
.metric-foot::before { content: "●"; color: var(--green); margin-right: 7px; }
.network-details { display: flex; gap: 13px; color: var(--muted); font: 9px var(--mono); margin: 15px 0 13px; }
.network-details + .metric-foot { margin-top: 0; }
.last-updated { text-align: right; color: #6f8198; font: 9px var(--mono); margin-top: 12px; }

.server-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 15px; }
.server-title { color: var(--green); font: 10px var(--mono); }
.server-icon { font-size: 28px; color: var(--cyan); margin: 20px 0 10px; }
.server-card h3 { font-size: 16px; margin-bottom: 9px; }
.server-card p { color: var(--muted); font-size: 11px; line-height: 1.8; min-height: 40px; }
.server-tag { display: inline-block; margin-top: 16px; color: var(--cyan); font: 9px var(--mono); }

.network-panel {
  padding: 28px 20px; border: 1px solid var(--border);
  background: var(--panel); border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
}
.network-node {
  min-width: 115px; padding: 18px 10px; text-align: center;
  border: 1px solid #29445f; border-radius: 9px; background: #142439;
}
.network-node > span { display: block; font-size: 24px; color: var(--cyan); margin-bottom: 9px; }
.network-node strong { display: block; font: 10px var(--mono); }
.network-node small { display: block; color: var(--muted); font-size: 9px; margin-top: 5px; }
.network-line { height: 2px; flex: 1; max-width: 80px; background: #2a526d; position: relative; }
.network-line i { position: absolute; width: 8px; height: 8px; border-radius: 50%; background: var(--cyan); top: -3px; animation: flow 1.5s linear infinite; }
@keyframes flow { from { left: 0; } to { left: 100%; } }

.skills-grid { display: flex; flex-wrap: wrap; gap: 10px; }
.skills-grid span {
  padding: 11px 14px; border: 1px solid var(--border);
  border-radius: 7px; background: var(--panel); color: #b8c8dc; font-size: 11px;
}
.projects-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 15px; }
.projects-grid .server-card { min-height: 150px; }
.projects-grid .server-card h3 { color: var(--cyan); }

.terminal-section {
  margin-top: 38px; border: 1px solid var(--border);
  border-radius: 10px; overflow: hidden; background: #070d16;
}
.terminal-header {
  padding: 13px 16px; display: flex; gap: 7px;
  align-items: center; background: #131e2e; border-bottom: 1px solid var(--border);
}
.terminal-header > span { font-size: 10px; color: #ff687c; }
.terminal-header > span:nth-child(2) { color: #ffc45b; }
.terminal-header > span:nth-child(3) { color: #37d69c; }
.terminal-header strong { color: #9bacbf; font: 10px var(--mono); margin-left: 10px; }
.terminal-body { padding: 20px; font: 11px/2 var(--mono); color: #9bacbf; }
.terminal-green { color: var(--green); }
.terminal-cursor { animation: blink .8s infinite alternate; color: var(--cyan); }

.contact-section {
  display: grid; grid-template-columns: 1fr 1fr; gap: 35px;
  padding: 28px; background: var(--panel);
  border: 1px solid var(--border); border-radius: 12px;
}
.contact-section h2 { margin: 12px 0; font-size: 23px; }
.contact-section > div p { color: var(--muted); line-height: 1.7; }
.contact-section form { display: grid; gap: 11px; }
.contact-section input, .contact-section textarea {
  width: 100%; border: 1px solid var(--border); border-radius: 7px;
  background: #0a1321; color: var(--text); padding: 13px;
  font: 11px var(--font); outline: none;
}
.contact-section input:focus, .contact-section textarea:focus { border-color: var(--cyan); }
.contact-section textarea { min-height: 105px; resize: vertical; }
.contact-section button { justify-self: start; }
#formMessage { color: var(--green); font-size: 11px; }
footer { text-align: center; color: #687b93; padding: 30px 0 10px; font-size: 10px; }

@media (max-width: 1100px) {
  .sidebar { width: 210px; }
  .main-content { margin-left: 210px; padding: 0 23px 25px; }
  .metrics { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .server-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 720px) {
  .sidebar { position: relative; width: 100%; height: auto; padding: 15px; }
  .brand { margin-bottom: 15px; }
  .sidebar nav { display: flex; overflow-x: auto; padding-bottom: 5px; }
  .nav-link { white-space: nowrap; padding: 10px; font-size: 11px; }
  .nav-label, .sidebar-bottom { display: none; }
  .main-content { margin-left: 0; padding: 0 14px 20px; }
  .topbar { min-height: 80px; }
  .topbar-right { gap: 10px; }
  .online-badge { font-size: 0; padding: 9px; }
  .welcome { padding: 25px 20px; }
  .server-visual { display: none; }
  .metrics, .server-grid, .projects-grid { grid-template-columns: 1fr; }
  .network-panel { flex-direction: column; gap: 0; }
  .network-line { height: 30px; width: 2px; flex: none; }
  .network-line i { left: -3px; animation: flowVertical 1.5s linear infinite; }
  @keyframes flowVertical { from { top: 0; } to { top: 100%; } }
  .contact-section { grid-template-columns: 1fr; padding: 20px; }
  .section-heading h2 { font-size: 17px; }
}
@media (max-width: 400px) {
  .clock-box { display: none; }
  .welcome h1 { font-size: 28px; }
  .welcome-actions { flex-wrap: wrap; }
}