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

:root {
  --bg:          #0d0f14;
  --surface:     #13161d;
  --card:        #181c25;
  --border:      #252a36;
  --border-hi:   #2f3647;
  --accent:      #00e5a0;
  --accent-dim:  #00b07a;
  --accent2:     #0099ff;
  --danger:      #ff4d6d;
  --warn:        #ffb627;
  --text:        #e2e8f0;
  --muted:       #64748b;
  --mono:        'JetBrains Mono', monospace;
  --sans:        'Syne', sans-serif;
  /* JWT part colours */
  --jwt-h:       #60a5fa;
  --jwt-h-bg:    rgba(96,165,250,.12);
  --jwt-h-bdr:   rgba(96,165,250,.25);
  --jwt-p:       #00e5a0;
  --jwt-p-bg:    rgba(0,229,160,.1);
  --jwt-p-bdr:   rgba(0,229,160,.25);
  --jwt-s:       #fb7185;
  --jwt-s-bg:    rgba(251,113,133,.1);
  --jwt-s-bdr:   rgba(251,113,133,.25);
}

html, body { height: 100%; }

body {
  font-family: var(--mono);
  background: var(--bg); color: var(--text);
  min-height: 100vh; display: flex; flex-direction: column;
  position: relative; overflow-x: hidden;
}

body::before {
  content: ''; position: fixed; inset: 0;
  background-image:
    linear-gradient(rgba(0,229,160,.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,229,160,.025) 1px, transparent 1px);
  background-size: 44px 44px; pointer-events: none; z-index: 0;
}

body::after {
  content: ''; position: fixed; width: 700px; height: 700px; border-radius: 50%;
  background: radial-gradient(circle, rgba(96,165,250,.04) 0%, transparent 70%);
  top: -150px; right: -200px; pointer-events: none; z-index: 0;
}

.page {
  position: relative; z-index: 1;
  display: flex; flex-direction: column; min-height: 100vh; gap: .75rem;
  padding: 1.75rem 1.5rem 2rem;
  max-width: 1400px; margin: 0 auto; width: 100%;
}

/* Header */
.header { display: flex; align-items: flex-end; justify-content: space-between; gap: 1rem; flex-wrap: wrap; }
.header-left .tag { font-size: .68rem; letter-spacing: .18em; text-transform: uppercase; color: var(--accent); margin-bottom: .35rem; display: flex; align-items: center; gap: .4rem; }
.header-left .tag::before { content: '>'; }
h1 { font-family: var(--sans); font-size: 1.9rem; font-weight: 700; letter-spacing: -.015em; line-height: 1; }
h1 span { color: var(--accent); }
.header-meta { font-size: .68rem; color: var(--muted); line-height: 1.7; text-align: right; }

/* Input section */
.input-section {
  background: var(--card); border: 1px solid var(--border);
  border-radius: 12px; overflow: hidden;
}
.input-header {
  display: flex; align-items: center; gap: .75rem;
  padding: .6rem 1rem; border-bottom: 1px solid var(--border);
  background: var(--surface);
}
.input-title { font-size: .65rem; letter-spacing: .14em; text-transform: uppercase; color: var(--muted); flex: 1; }
.btn-sm {
  font-size: .65rem; color: var(--muted); cursor: pointer;
  padding: .22rem .5rem; border-radius: 4px;
  border: 1px solid transparent; background: none;
  font-family: var(--mono); transition: all .12s;
  display: flex; align-items: center; gap: .3rem;
}
.btn-sm:hover { color: var(--text); border-color: var(--border-hi); background: var(--card); }

textarea {
  width: 100%; background: transparent; border: none; outline: none;
  padding: 1rem; font-family: var(--mono); font-size: .78rem;
  color: var(--text); resize: vertical; line-height: 1.6;
  caret-color: var(--accent); min-height: 90px;
}
textarea::placeholder { color: var(--muted); opacity: .45; }
textarea:focus { background: rgba(0,229,160,.012); }

/* Token visualiser */
.token-viz {
  padding: .75rem 1rem; border-top: 1px solid var(--border);
  background: rgba(0,0,0,.15);
  font-family: var(--mono); font-size: .72rem;
  word-break: break-all; line-height: 1.8; letter-spacing: .02em;
  display: none;
}
.token-viz.visible { display: block; }
.viz-h   { color: var(--jwt-h); }
.viz-dot { color: var(--muted); }
.viz-p   { color: var(--jwt-p); }
.viz-s   { color: var(--jwt-s); opacity: .7; }

/* Status / meta bar */
.meta-bar {
  display: flex; align-items: center; gap: .75rem; flex-wrap: wrap;
  padding: .65rem 1rem;
  background: var(--card); border: 1px solid var(--border);
  border-radius: 10px;
}
.meta-badge {
  font-size: .65rem; font-weight: 600; letter-spacing: .06em; text-transform: uppercase;
  padding: .2rem .55rem; border-radius: 4px; border: 1px solid;
}
.badge-valid   { color: var(--accent); background: var(--jwt-p-bg); border-color: var(--jwt-p-bdr); }
.badge-expired { color: var(--danger); background: var(--jwt-s-bg); border-color: var(--jwt-s-bdr); }
.badge-warn    { color: var(--warn);   background: rgba(255,182,39,.1); border-color: rgba(255,182,39,.25); }
.badge-idle    { color: var(--muted);  background: rgba(100,116,139,.1); border-color: var(--border); }
.meta-item { font-size: .7rem; color: var(--muted); display: flex; align-items: center; gap: .35rem; }
.meta-item strong { color: var(--text); font-weight: 500; }
.meta-sep { width: 1px; height: 16px; background: var(--border); }

/* Panels */
.panels { display: grid; grid-template-columns: 1fr 1fr; gap: .75rem; }

.panel {
  background: var(--card); border: 1px solid var(--border);
  border-radius: 12px; overflow: hidden; display: flex; flex-direction: column;
  min-height: 220px;
}
.panel-header {
  display: flex; align-items: center; gap: .6rem;
  padding: .6rem 1rem; border-bottom: 1px solid var(--border);
  background: var(--surface); flex-shrink: 0;
}
.panel-title { font-size: .65rem; letter-spacing: .14em; text-transform: uppercase; flex: 1; }
.panel-title.title-h { color: var(--jwt-h); }
.panel-title.title-p { color: var(--jwt-p); }
.panel-title.title-s { color: var(--jwt-s); }
.panel-dot { width: 8px; height: 8px; border-radius: 50%; flex-shrink: 0; }
.dot-h { background: var(--jwt-h); }
.dot-p { background: var(--jwt-p); }
.dot-s { background: var(--jwt-s); }
.copy-ok { font-size: .65rem; color: var(--accent); opacity: 0; transition: opacity .2s; }
.copy-ok.show { opacity: 1; }

.json-output {
  flex: 1; padding: 1rem; overflow-y: auto;
  font-family: var(--mono); font-size: .78rem; line-height: 1.75;
  white-space: pre; color: var(--muted);
}
.json-output.populated { color: var(--text); }
.empty-hint { color: var(--muted); opacity: .5; font-style: italic; font-size: .78rem; }

/* Syntax highlight */
.j-key  { color: #7dd3fc; }
.j-str  { color: #86efac; }
.j-num  { color: #fbbf24; }
.j-bool { color: #c084fc; }
.j-null { color: #fb923c; }

/* Claims panel */
.claims-section {
  background: var(--card); border: 1px solid var(--border);
  border-radius: 12px; overflow: hidden;
}
.claims-header {
  display: flex; align-items: center; gap: .6rem;
  padding: .6rem 1rem; border-bottom: 1px solid var(--border);
  background: var(--surface);
}
.claims-title { font-size: .65rem; letter-spacing: .14em; text-transform: uppercase; color: var(--muted); }
.claims-body { padding: .6rem; display: flex; flex-direction: column; gap: .3rem; }
.claim-row {
  display: flex; align-items: flex-start; gap: .75rem;
  padding: .5rem .75rem; border-radius: 7px;
  border: 1px solid var(--border); font-size: .74rem;
}
.claim-key { color: #7dd3fc; min-width: 3.5rem; flex-shrink: 0; font-weight: 600; }
.claim-val { color: var(--text); flex: 1; word-break: break-all; }
.claim-hint { font-size: .63rem; color: var(--muted); margin-left: auto; white-space: nowrap; padding-left: .5rem; }
.claim-expired { color: var(--danger); }
.claim-valid   { color: var(--accent); }
.claim-warn    { color: var(--warn); }

/* Signature */
.sig-section {
  background: var(--card); border: 1px solid var(--border);
  border-radius: 12px; overflow: hidden;
}
.sig-body { padding: 1rem; }
.sig-val { font-family: var(--mono); font-size: .72rem; color: var(--jwt-s); word-break: break-all; line-height: 1.65; }
.sig-note {
  margin-top: .6rem; font-size: .68rem; color: var(--muted); line-height: 1.6;
  padding: .5rem .75rem; background: rgba(255,182,39,.05);
  border: 1px solid rgba(255,182,39,.15); border-radius: 6px;
}
.sig-note strong { color: var(--warn); }

/* Footer */
.footer-note { font-size: .63rem; color: var(--muted); text-align: center; letter-spacing: .04em; }
.footer-note a { color: var(--accent-dim); text-decoration: none; }
.footer-note a:hover { color: var(--accent); }

::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border-hi); border-radius: 99px; }

@keyframes fadeUp { from { opacity: 0; transform: translateY(12px); } to { opacity: 1; transform: none; } }
.page { animation: fadeUp .35s ease both; }

@media (max-width: 860px) {
  .panels { grid-template-columns: 1fr; }
  .header-meta { display: none; }
}

/* ── Site Nav ── */
.site-nav { position: sticky; top: 0; z-index: 1000; background: rgba(13,15,20,.92); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); border-bottom: 1px solid var(--border); }
.site-nav-inner { display: flex; align-items: center; height: 56px; gap: 2rem; max-width: 1400px; margin: 0 auto; padding: 0 2rem; width: 100%; }
.nav-logo { font-family: var(--mono); font-size: .85rem; font-weight: 700; color: var(--accent); text-decoration: none; letter-spacing: -.01em; white-space: nowrap; display: flex; align-items: center; gap: .15rem; }
.nav-logo .brace { color: var(--muted); font-weight: 400; }
.nav-links { display: flex; align-items: center; gap: 1.5rem; flex: 1; }
.nav-links a { font-family: var(--mono); font-size: .78rem; color: var(--muted); text-decoration: none; letter-spacing: .03em; transition: color .14s; }
.nav-links a:hover { color: var(--text); }
.nav-dropdown { position: relative; }
.nav-dropdown-toggle { display: inline-flex; align-items: center; gap: .35rem; background: none; border: none; cursor: pointer; font-family: var(--mono); font-size: .78rem; color: var(--accent); padding: 0; letter-spacing: .03em; transition: color .14s; }
.nav-dropdown-toggle:hover { color: #00ffb3; }
.nav-dropdown-toggle svg { transition: transform .2s ease; }
.nav-dropdown.open .nav-dropdown-toggle svg { transform: rotate(180deg); }
.nav-dropdown-menu { position: absolute; top: calc(100% + 1rem); left: 50%; transform: translateX(-50%); min-width: 220px; background: #181c25; border: 1px solid var(--border-hi); border-radius: 10px; padding: .4rem; display: none; flex-direction: column; gap: .15rem; box-shadow: 0 12px 32px rgba(0,0,0,.6); z-index: 999; }
.nav-dropdown.open .nav-dropdown-menu { display: flex; animation: dropIn .15s ease both; }
.nav-dropdown-menu a { display: flex; align-items: center; gap: .6rem; padding: .55rem .75rem; border-radius: 7px; font-size: .75rem; color: #94a3b8; text-decoration: none; transition: background .12s, color .12s; white-space: nowrap; letter-spacing: .02em; }
.nav-dropdown-menu a:hover { background: rgba(0,229,160,.07); color: var(--accent); }
.nav-dropdown-menu a.active { background: rgba(0,229,160,.1); color: var(--accent); }
.nav-dropdown-menu a svg { opacity: .55; flex-shrink: 0; }
.nav-dropdown-menu a:hover svg, .nav-dropdown-menu a.active svg { opacity: 1; }
@keyframes dropIn { from { opacity: 0; transform: translateX(-50%) translateY(-6px); } to { opacity: 1; transform: translateX(-50%) translateY(0); } }
.nav-cv { font-family: var(--mono); font-size: .72rem; font-weight: 700; padding: .35rem .85rem; border-radius: 6px; background: var(--accent); color: #0d0f14; text-decoration: none; letter-spacing: .05em; transition: background .14s; white-space: nowrap; margin-left: auto; }
.nav-cv:hover { background: #00ffb3; }
@media (max-width: 640px) { .nav-links a:not(.nav-dropdown-toggle) { display: none; } }