@import url('https://fonts.googleapis.com/css2?family=Syne:wght@700;800&family=IBM+Plex+Mono:ital,wght@0,400;0,500;0,600;1,400&display=swap');

/* ─── Design Tokens ──────────────────────────────────────── */
:root {
  --s0: #0c0e0c;
  --s1: #121512;
  --s2: #181b18;
  --s3: #1e231e;

  --c-net: #22d3ee;
  --c-net-dim: rgba(34, 211, 238, 0.08);
  --c-net-glow: rgba(34, 211, 238, 0.15);

  --c-enc: #c084fc;
  --c-enc-dim: rgba(192, 132, 252, 0.08);
  --c-enc-glow: rgba(192, 132, 252, 0.15);

  --c-gen: #fbbf24;
  --c-gen-dim: rgba(251, 191, 36, 0.08);
  --c-gen-glow: rgba(251, 191, 36, 0.15);

  --c-dev: #fb7185;
  --c-dev-dim: rgba(251, 113, 133, 0.08);
  --c-dev-glow: rgba(251, 113, 133, 0.15);

  --green: #4ade80;
  --green-dim: rgba(74, 222, 128, 0.08);

  --t1: #d4e8d4;
  --t2: #7a9e7a;
  --t3: #6ba06b;

  --border: 1px solid rgba(74, 222, 128, 0.08);
  --border-hover: 1px solid rgba(74, 222, 128, 0.18);
  --radius: 4px;
}

/* ─── Base ───────────────────────────────────────────────── */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  background-color: var(--s0);
  color: var(--t1);
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.9rem;
  line-height: 1.7;
  min-height: 100vh;
}

/* CRT scanlines */
body::after {
  content: '';
  position: fixed;
  inset: 0;
  background: repeating-linear-gradient(0deg,
      transparent,
      transparent 2px,
      rgba(0, 0, 0, 0.13) 2px,
      rgba(0, 0, 0, 0.13) 4px);
  pointer-events: none;
  z-index: 9000;
}

/* ─── Scrollbar ──────────────────────────────────────────── */
::-webkit-scrollbar {
  width: 4px;
  height: 4px;
}

::-webkit-scrollbar-track {
  background: var(--s0);
}

::-webkit-scrollbar-thumb {
  background: var(--s3);
  border-radius: 0;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--t3);
}

/* ─── Typography ─────────────────────────────────────────── */
.font-display {
  font-family: 'Syne', sans-serif;
}

.font-mono {
  font-family: 'IBM Plex Mono', monospace;
}

/* ─── Nav / Shell prompt ─────────────────────────────────── */
.site-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 2rem;
  background: rgba(12, 14, 12, 0.94);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: var(--border);
  font-size: 0.78rem;
}

.nav-prompt {
  display: flex;
  align-items: center;
  gap: 0;
  text-decoration: none;
}

.nav-prompt .p-user {
  color: var(--green);
}

.nav-prompt .p-at {
  color: var(--t3);
}

.nav-prompt .p-host {
  color: var(--c-net);
}

.nav-prompt .p-path {
  color: var(--c-enc);
}

.nav-prompt .p-sym {
  color: var(--green);
  margin: 0 0.4rem;
}

.nav-prompt .p-cmd {
  color: var(--t2);
}

/* Logo mark: bordered >_ box */
.nav-logo-mark {
  display: inline-flex;
  align-items: center;
  gap: 2px;
  border: 1.5px solid var(--green);
  border-radius: var(--radius);
  padding: 2px 5px;
  margin-right: 0.65rem;
  flex-shrink: 0;
  line-height: 1;
}

.nav-logo-mark .nlm-sym {
  color: var(--green);
  font-size: 0.72rem;
}

.nav-logo-mark .nlm-cur {
  display: inline-block;
  width: 5px;
  height: 10px;
  background: var(--green);
}

.nav-status {
  font-size: 0.65rem;
  color: var(--t3);
  letter-spacing: 0.06em;
  display: flex;
  align-items: center;
  gap: 1rem;
}

.nav-back {
  font-size: 0.72rem;
  color: var(--t3);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 0.4rem;
  transition: color 0.12s;
  letter-spacing: 0.04em;
}

.nav-back:hover {
  color: var(--green);
}

/* ─── Category Badge ─────────────────────────────────────── */
.cat-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.6rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 0.18rem 0.55rem;
  border-radius: 2px;
  line-height: 1;
  border: 1px solid;
}

.cat-badge.net {
  color: var(--c-net);
  background: var(--c-net-dim);
  border-color: rgba(34, 211, 238, 0.2);
}

.cat-badge.enc {
  color: var(--c-enc);
  background: var(--c-enc-dim);
  border-color: rgba(192, 132, 252, 0.2);
}

.cat-badge.gen {
  color: var(--c-gen);
  background: var(--c-gen-dim);
  border-color: rgba(251, 191, 36, 0.2);
}

.cat-badge.dev {
  color: var(--c-dev);
  background: var(--c-dev-dim);
  border-color: rgba(251, 113, 133, 0.2);
}

.cat-dot {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  flex-shrink: 0;
}

.net .cat-dot {
  background: var(--c-net);
}

.enc .cat-dot {
  background: var(--c-enc);
}

.gen .cat-dot {
  background: var(--c-gen);
}

.dev .cat-dot {
  background: var(--c-dev);
}

/* ─── Section Header ─────────────────────────────────────── */
.section-header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.75rem;
}

.section-label {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.65rem;
  font-weight: 500;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  white-space: nowrap;
}

.section-label::before {
  content: '## ';
  color: var(--t3);
}

.section-label.net {
  color: var(--c-net);
}

.section-label.enc {
  color: var(--c-enc);
}

.section-label.gen {
  color: var(--c-gen);
}

.section-label.dev {
  color: var(--c-dev);
}

.section-rule {
  flex: 1;
  height: 1px;
  opacity: 0.12;
}

.section-rule.net {
  background: var(--c-net);
}

.section-rule.enc {
  background: var(--c-enc);
}

.section-rule.gen {
  background: var(--c-gen);
}

.section-rule.dev {
  background: var(--c-dev);
}

/* ─── Tool Card (homepage rows) ──────────────────────────── */
.tool-card {
  display: grid;
  grid-template-columns: 2.5rem 1fr auto;
  align-items: center;
  gap: 1rem;
  padding: 0.65rem 0.75rem;
  text-decoration: none;
  color: inherit;
  border-radius: var(--radius);
  transition: background 0.1s;
  position: relative;
}

.tool-card:hover {
  background: var(--s2);
}

.tool-card:hover .card-arrow {
  opacity: 1;
  transform: translateX(0);
}

/* num column (repurposed .card-icon) */
.card-icon {
  font-size: 0.65rem;
  color: var(--t3);
  text-align: right;
  font-family: 'IBM Plex Mono', monospace;
  line-height: 1;
}

/* name + desc */
.card-body {
  display: flex;
  flex-direction: column;
  gap: 0.1rem;
}

.card-title {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--t2);
  transition: color 0.1s;
  letter-spacing: 0;
}

.tool-card.net .card-title {
  color: var(--c-net);
}

.tool-card.enc .card-title {
  color: var(--c-enc);
}

.tool-card.gen .card-title {
  color: var(--c-gen);
}

.tool-card.dev .card-title {
  color: var(--c-dev);
}

.card-desc {
  font-size: 0.73rem;
  font-style: italic;
  color: var(--t3);
  line-height: 1.4;
}

.card-arrow {
  color: var(--green);
  font-size: 0.75rem;
  opacity: 0;
  transform: translateX(-4px);
  transition: opacity 0.1s, transform 0.1s;
  flex-shrink: 0;
}

/* ─── Animations ─────────────────────────────────────────── */
@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(8px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes blinkCursor {

  0%,
  100% {
    opacity: 1;
  }

  50% {
    opacity: 0;
  }
}

.anim-up {
  animation: fadeUp 0.3s ease both;
}

.anim-up:nth-child(1) {
  animation-delay: 0.03s;
}

.anim-up:nth-child(2) {
  animation-delay: 0.06s;
}

.anim-up:nth-child(3) {
  animation-delay: 0.09s;
}

.anim-up:nth-child(4) {
  animation-delay: 0.12s;
}

.anim-up:nth-child(5) {
  animation-delay: 0.15s;
}

.anim-up:nth-child(6) {
  animation-delay: 0.18s;
}

.anim-up:nth-child(7) {
  animation-delay: 0.21s;
}

.anim-up:nth-child(8) {
  animation-delay: 0.24s;
}

.anim-up:nth-child(9) {
  animation-delay: 0.27s;
}

/* ─── Footer ─────────────────────────────────────────────── */
.site-footer {
  border-top: var(--border);
  padding: 1rem 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}

.footer-text {
  font-size: 0.65rem;
  color: var(--t3);
  letter-spacing: 0.04em;
}

.footer-ok {
  color: var(--green);
}

.footer-links {
  display: flex;
  gap: 1.5rem;
}

.footer-link {
  font-size: 0.65rem;
  color: var(--t3);
  text-decoration: none;
  letter-spacing: 0.04em;
  transition: color 0.12s;
}

.footer-link:hover {
  color: var(--green);
}