@import url('https://fonts.googleapis.com/css2?family=Share+Tech+Mono&family=Orbitron:wght@400;700;900&display=swap');

:root {
  --green: #00ff41;
  --cyan: #00f7ff;
  --dark: #050505;
  --card-bg: rgba(13, 13, 13, 0.92);
  --border: rgba(0, 255, 65, 0.22);
  --text: #c8ffc8;
  --muted: rgba(200, 255, 200, 0.62);
  --purple: #7b2fff;
  --danger: #ff5c5c;
  --header-offset: 140px;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  background: var(--dark);
  color: var(--text);
  font-family: 'Share Tech Mono', monospace;
  overflow-x: hidden;
}

body::before {
  content: '';
  position: fixed;
  inset: 0;
  background: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 2px,
    rgba(0, 255, 65, 0.015) 2px,
    rgba(0, 255, 65, 0.015) 4px
  );
  pointer-events: none;
  z-index: 9999;
}

#matrix-bg {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  opacity: 0.07;
  pointer-events: none;
}

main,
.page-section,
.hero,
section,
footer {
  position: relative;
  z-index: 1;
}

main > .page-section {
  display: none;
  width: 100%;
  max-width: none;
  margin: 0;
  padding: 0;
  min-height: calc(100vh - var(--header-offset));
}

main > .page-section.is-visible {
  display: block;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 120;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  padding: 0.7rem 1.25rem 0.95rem;
  background: linear-gradient(
    180deg,
    rgba(3, 6, 8, 0.98) 0%,
    rgba(3, 6, 8, 0.94) 70%,
    rgba(3, 6, 8, 0.9) 100%
  );
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(0, 255, 65, 0.12);
}

.top-nav-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.25rem;
  min-height: 44px;
}

.nav-logo {
  font-family: 'Orbitron', sans-serif;
  font-size: 1.5rem;
  letter-spacing: 0.14em;
  color: #dbeafe;
  text-transform: uppercase;
  white-space: nowrap;
  flex-shrink: 0;
  padding-left: 0.1rem;
}

.nav-logo span {
  color: var(--green);
}

.top-tabs {
  display: flex;
  gap: 0.85rem;
  flex-wrap: wrap;
  justify-content: flex-end;
  align-items: center;
}

.nav-link {
  font-family: 'Share Tech Mono', monospace;
  font-size: 0.8rem;
  text-transform: uppercase;
  padding: 0.62rem 1.1rem;
  border-radius: 999px;
  border: 1px solid rgba(34, 197, 94, 0.22);
  background: transparent;
  color: #e5e7eb;
  cursor: pointer;
  transition: all 0.18s ease;
}

.nav-link:hover {
  background: rgba(34, 197, 94, 0.12);
  border-color: rgba(34, 197, 94, 0.4);
}

.nav-link.is-active {
  background: #22c55e;
  color: #03120a;
  border-color: #22c55e;
  box-shadow: 0 0 20px rgba(34, 197, 94, 0.22);
}

.dev-subnav {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 1.15rem;
  padding: 0.55rem 0.4rem 0.15rem;
  border-top: 1px solid rgba(0, 255, 65, 0.06);
  background: transparent;
}

.dev-subnav a {
  color: rgba(180, 255, 210, 0.88);
  text-decoration: none;
  font-size: 0.82rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  padding: 0.35rem 0.55rem;
  border-radius: 8px;
  transition: all 0.18s ease;
  white-space: nowrap;
}

.dev-subnav a:hover {
  color: var(--green);
  background: rgba(0, 255, 65, 0.08);
  text-shadow: 0 0 10px rgba(0, 255, 65, 0.45);
}

.dev-subnav.is-hidden {
  display: none;
}

#hardware,
#metrics,
#stacks,
#projekte,
#terminal {
  scroll-margin-top: var(--header-offset);
}

.hero {
  min-height: calc(100vh - var(--header-offset));
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  padding: 4rem 2rem;
}

.hero-tag {
  color: var(--green);
  font-size: 0.8rem;
  letter-spacing: 4px;
  margin-bottom: 1rem;
  opacity: 0.7;
}

.hero h1 {
  font-family: 'Orbitron', sans-serif;
  font-size: clamp(2.5rem, 8vw, 6rem);
  font-weight: 900;
  color: var(--green);
  text-shadow: 0 0 20px var(--green), 0 0 60px rgba(0, 255, 65, 0.3);
  line-height: 1;
  letter-spacing: 6px;
}

.hero-sub {
  font-size: 1rem;
  color: var(--cyan);
  letter-spacing: 2px;
  margin-top: 1rem;
  opacity: 0.8;
}

.hero-desc {
  max-width: 700px;
  margin: 2rem auto;
  font-size: 0.92rem;
  line-height: 1.8;
  opacity: 0.72;
}

.hero-badges {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  justify-content: center;
}

.hero-badge {
  font-size: 0.75rem;
  border: 1px solid var(--border);
  padding: 0.45rem 0.95rem;
  color: var(--green);
  letter-spacing: 1px;
  background: rgba(0, 255, 65, 0.04);
}

.blink {
  animation: blink 1s step-end infinite;
}

@keyframes blink {
  50% {
    opacity: 0;
  }
}

.scroll-hint {
  margin-top: 2rem;
  color: var(--green);
  opacity: 0.4;
  font-size: 0.75rem;
  letter-spacing: 2px;
  animation: bounce 2s infinite;
}

@keyframes bounce {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

section {
  padding: 5rem 2rem;
  max-width: 1200px;
  margin: 0 auto;
}

.section-title {
  font-family: 'Orbitron', sans-serif;
  font-size: 1.5rem;
  color: var(--green);
  letter-spacing: 4px;
  margin-bottom: 0.5rem;
}

.section-title::before {
  content: '> ';
  color: var(--cyan);
  opacity: 0.6;
}

.section-line {
  width: 60px;
  height: 2px;
  background: linear-gradient(90deg, var(--green), transparent);
  margin-bottom: 2rem;
}

.section-subtitle {
  font-size: 0.9rem;
  letter-spacing: 2px;
  color: var(--cyan);
  opacity: 0.85;
  margin-bottom: 1rem;
  text-transform: uppercase;
}

.section-subtitle.with-gap {
  margin-top: 3rem;
}

.spec-grid,
.metrics-grid,
.docker-grid,
.projects-grid {
  display: grid;
  gap: 1.5rem;
}

.spec-grid {
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.metrics-grid {
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
}

.docker-grid {
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
}

.projects-grid {
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
}

.spec-card,
.metric-card,
.docker-card,
.project-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  position: relative;
  overflow: hidden;
  transition: border-color 0.3s, box-shadow 0.3s, transform 0.3s;
}

.spec-card,
.metric-card {
  padding: 1.5rem;
}

.docker-card {
  padding: 1.2rem;
  cursor: pointer;
}

.project-card {
  padding: 1.8rem;
}

.spec-card::before,
.metric-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 3px;
  height: 100%;
  background: var(--green);
  opacity: 0.6;
}

.spec-card:hover,
.metric-card:hover,
.project-card:hover {
  border-color: var(--green);
  box-shadow: 0 0 20px rgba(0, 255, 65, 0.1);
}

.docker-card:hover {
  border-color: var(--cyan);
  box-shadow: 0 0 15px rgba(0, 255, 255, 0.1);
  transform: translateY(-2px);
}

.project-card::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--green), var(--cyan));
  transition: width 0.3s;
}

.project-card:hover::after {
  width: 100%;
}

.spec-label,
.metric-label {
  font-size: 0.7rem;
  color: var(--cyan);
  letter-spacing: 2px;
  margin-bottom: 0.5rem;
  opacity: 0.75;
}

.spec-value {
  font-size: 1rem;
  color: var(--green);
  font-weight: bold;
}

.metric-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.8rem;
}

.metric-card-wide {
  grid-column: 1 / -1;
  align-items: flex-start;
}

.metric-card-wide canvas {
  width: 100%;
  height: 120px;
}

.metric-label {
  align-self: flex-start;
}

.metric-ring-wrap {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.metric-ring-value {
  position: absolute;
  font-family: 'Orbitron', sans-serif;
  font-size: 1rem;
  color: var(--green);
  text-shadow: 0 0 10px var(--green);
}

.metric-bar-label {
  font-size: 0.7rem;
  color: var(--cyan);
  opacity: 0.75;
  letter-spacing: 1px;
}

.cat-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 2rem;
}

.cat-tab {
  padding: 0.42rem 1rem;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text);
  cursor: pointer;
  font-family: 'Share Tech Mono', monospace;
  font-size: 0.75rem;
  letter-spacing: 1px;
  transition: all 0.2s;
}

.cat-tab:hover,
.cat-tab.active {
  background: var(--green);
  color: #000;
  border-color: var(--green);
}

.docker-card .icon {
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
}

.docker-card .name,
.p-title {
  font-size: 0.9rem;
  color: var(--green);
  font-weight: bold;
  margin-bottom: 0.5rem;
}

.p-title {
  font-family: 'Orbitron', sans-serif;
  letter-spacing: 1px;
}

.docker-card .cat,
.tech-tag {
  font-size: 0.65rem;
  color: var(--cyan);
  letter-spacing: 2px;
  opacity: 0.7;
}

.docker-card .cat {
  margin-bottom: 0.5rem;
}

.docker-card .desc,
.p-desc {
  font-size: 0.78rem;
  line-height: 1.7;
  opacity: 0.65;
}

.p-desc {
  margin-bottom: 1rem;
}

.tech-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.tech-tag {
  padding: 0.2rem 0.6rem;
  border: 1px solid var(--border);
}

.card-status {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  position: absolute;
  top: 0.8rem;
  right: 0.8rem;
}

.status-dot-online {
  background: #00ff41;
  box-shadow: 0 0 6px #00ff41;
}

.status-dot-wip {
  background: #ffaa00;
  box-shadow: 0 0 6px #ffaa00;
}

.status-badge {
  position: absolute;
  top: 1rem;
  right: 1rem;
  font-size: 0.6rem;
  padding: 0.2rem 0.6rem;
  letter-spacing: 2px;
}

.status-active {
  border: 1px solid var(--green);
  color: var(--green);
}

.status-done {
  border: 1px solid var(--purple);
  color: var(--purple);
}

.terminal {
  background: rgba(10, 10, 10, 0.95);
  border: 1px solid var(--border);
  padding: 1.5rem;
  font-size: 0.8rem;
  line-height: 2;
}

.terminal .prompt {
  color: var(--green);
}

.terminal .cmd {
  color: var(--text);
}

.terminal .out {
  color: var(--cyan);
  opacity: 0.75;
}

.terminal .out.danger {
  color: var(--danger);
  opacity: 1;
}

#modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.85);
  z-index: 1000;
  align-items: center;
  justify-content: center;
  backdrop-filter: blur(4px);
}

#modal-overlay.active {
  display: flex;
}

#modal-box {
  background: #0d0d0d;
  border: 1px solid var(--green);
  box-shadow: 0 0 40px rgba(0, 255, 65, 0.2);
  padding: 2rem;
  max-width: 420px;
  width: 90%;
  font-family: 'Share Tech Mono', monospace;
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
}

#modal-title {
  font-family: 'Orbitron', sans-serif;
  font-size: 1.1rem;
  color: var(--green);
  letter-spacing: 2px;
}

#modal-cat,
#modal-port {
  font-size: 0.78rem;
  color: var(--cyan);
  opacity: 0.8;
}

#modal-desc {
  font-size: 0.85rem;
  opacity: 0.74;
  line-height: 1.6;
}

.modal-online {
  font-size: 0.8rem;
  color: #00ff41;
}

.modal-wip {
  font-size: 0.8rem;
  color: #ffaa00;
}

#modal-link a {
  color: var(--green);
  text-decoration: none;
  font-size: 0.85rem;
  letter-spacing: 1px;
}

#modal-link a:hover {
  text-shadow: 0 0 8px var(--green);
}

#modal-box button {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text);
  padding: 0.45rem 1rem;
  cursor: pointer;
  font-family: 'Share Tech Mono', monospace;
  font-size: 0.75rem;
  letter-spacing: 2px;
  margin-top: 0.5rem;
  transition: all 0.2s;
  align-self: flex-start;
}

#modal-box button:hover {
  border-color: var(--green);
  color: var(--green);
}

#graph-tooltip {
  position: fixed;
  background: #0d0d0d;
  border: 1px solid var(--green);
  color: var(--green);
  font-family: 'Share Tech Mono', monospace;
  font-size: 0.75rem;
  padding: 0.3rem 0.6rem;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.15s;
  z-index: 500;
  letter-spacing: 1px;
}

#about,
#hobbies {
  background: transparent;
  padding: 3rem 1.5rem 4rem;
}

#about .about-wrapper,
#hobbies .about-wrapper {
  width: min(900px, 100%);
  margin: 0 auto;
  padding: 2rem;
  background: rgba(8, 12, 18, 0.92);
  border: 1px solid var(--border);
  border-radius: 12px;
  box-shadow: 0 0 30px rgba(0, 255, 65, 0.06);
}

.about-wrapper h1,
.about-wrapper h2 {
  font-family: 'Share Tech Mono', monospace;
  color: #e5e7eb;
  margin-bottom: 0.75rem;
}

.about-wrapper h1 {
  font-size: 1.6rem;
}

.about-wrapper h2 {
  font-size: 1.1rem;
  margin-top: 1.75rem;
}

.about-wrapper p {
  margin-bottom: 0.75rem;
  color: #cbd5f5;
  line-height: 1.6;
}

.about-wrapper ul {
  margin-left: 1.2rem;
  color: #cbd5f5;
}

.about-wrapper li {
  margin-bottom: 0.4rem;
}

.about-links {
  list-style: none;
  padding-left: 0;
  margin-top: 0.5rem;
}

.about-links li {
  margin-bottom: 0.35rem;
}

.about-links a {
  color: #a5b4fc;
  text-decoration: none;
  border-bottom: 1px dotted #4f46e5;
}

.about-links a:hover {
  color: #22c55e;
  border-bottom-style: solid;
}

.about-note {
  margin-top: 0.5rem;
  font-size: 0.85rem;
  color: #9ca3af;
}

footer {
  border-top: 1px solid var(--border);
  padding: 2rem;
  text-align: center;
  font-size: 0.75rem;
  opacity: 0.45;
  letter-spacing: 2px;
}

@media (max-width: 768px) {
  :root {
    --header-offset: 196px;
  }

  .site-header {
    gap: 0.5rem;
    padding: 0.85rem 1rem 0.95rem;
  }

  .top-nav-row {
    flex-direction: column;
    align-items: stretch;
    gap: 0.8rem;
  }

  .nav-logo {
    text-align: center;
    font-size: 1.25rem;
    padding-left: 0;
  }

  .top-tabs {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    width: 100%;
    gap: 0.55rem;
  }

  .nav-link {
    width: 100%;
    text-align: center;
    padding: 0.65rem 0.75rem;
    font-size: 0.72rem;
  }

  .dev-subnav {
    justify-content: center;
    overflow-x: auto;
    white-space: nowrap;
    scrollbar-width: none;
    gap: 1rem;
    padding: 0.35rem 0.2rem 0;
  }

  .dev-subnav::-webkit-scrollbar {
    display: none;
  }

  .hero {
    padding: 3rem 1rem;
  }

  .hero h1 {
    letter-spacing: 3px;
  }

  .hero-badges {
    gap: 0.6rem;
  }

  section {
    padding: 4rem 1rem;
  }

  .spec-grid,
  .metrics-grid,
  .docker-grid,
  .projects-grid {
    grid-template-columns: 1fr;
  }

  .metric-card-wide canvas {
    height: 110px;
  }

  #about,
  #hobbies {
    padding: 2rem 1rem 3rem;
  }

  #about .about-wrapper,
  #hobbies .about-wrapper {
    padding: 1.25rem;
  }
}

@media (max-width: 480px) {
  :root {
    --header-offset: 205px;
  }

  .nav-logo {
    font-size: 1.08rem;
    letter-spacing: 0.1em;
  }

  .top-tabs {
    grid-template-columns: 1fr;
  }

  .dev-subnav {
    justify-content: flex-start;
    padding-left: 0.1rem;
    padding-right: 0.1rem;
  }

  .section-title {
    font-size: 1.1rem;
    letter-spacing: 2px;
  }

  .hero-sub,
  .hero-desc,
  .spec-value,
  .p-desc,
  .terminal,
  .about-wrapper p,
  .about-wrapper li {
    font-size: 0.85rem;
  }

  .hero-badge,
  .nav-link,
  .dev-subnav a,
  .tech-tag,
  .cat-tab {
    font-size: 0.7rem;
  }
}