@import url('https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@300;400;500;700;800&family=Outfit:wght@300;400;600;900&display=swap');

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

/* ═══════════════════════════════════════════
   TOKENS
═══════════════════════════════════════════ */
:root {
  --bg:          #050508;
  --bg2:         #0c0c12;
  --surface:     #111118;
  --card:        #16161f;
  --card-hover:  #1c1c28;
  --border:      #1e1e2e;
  --border-light:#2a2a40;

  --green:       #39ff84;
  --green-dim:   rgba(57,255,132,.12);
  --green-glow:  rgba(57,255,132,.25);
  --orange:      #ff6b35;
  --blue:        #4af0ff;
  --yellow:      #ffd700;

  --text:        #cdd6f4;
  --text-dim:    #6c7086;
  --text-bright: #ffffff;

  --font-code:  'JetBrains Mono', monospace;
  --font-ui:    'Outfit', sans-serif;
  --radius:     8px;
  --radius-lg:  14px;
}

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-ui);
  min-height: 100vh;
  overflow-x: hidden;
}

/* ═══════════════════════════════════════════
   GRID BACKGROUND
═══════════════════════════════════════════ */
body::before {
  content: '';
  position: fixed; inset: 0;
  background-image:
    linear-gradient(rgba(57,255,132,.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(57,255,132,.03) 1px, transparent 1px);
  background-size: 40px 40px;
  pointer-events: none;
  z-index: 0;
}

body::after {
  content: '';
  position: fixed; inset: 0;
  background: radial-gradient(ellipse 80% 50% at 50% -10%, rgba(57,255,132,.07), transparent);
  pointer-events: none;
  z-index: 0;
}

/* ═══════════════════════════════════════════
   SCROLLBAR
═══════════════════════════════════════════ */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--border-light); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--green); }

/* ═══════════════════════════════════════════
   HEADER
═══════════════════════════════════════════ */
header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(5,5,8,.9);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  padding: 0 2rem;
  display: flex; align-items: center; justify-content: space-between;
  height: 54px;
}

.logo {
  font-family: var(--font-code);
  font-size: 1rem;
  font-weight: 700;
  color: var(--green);
  text-decoration: none;
  display: flex; align-items: center; gap: .5rem;
}
.logo::before {
  content: '>';
  color: var(--text-dim);
  animation: blink 1.2s step-end infinite;
}
@keyframes blink { 0%,100%{opacity:1} 50%{opacity:0} }

.logo-name { color: var(--text-bright); }
.logo-ext  { color: var(--text-dim); font-weight: 300; }

nav { display: flex; gap: 1.5rem; align-items: center; }
nav a {
  font-family: var(--font-code);
  font-size: .75rem;
  color: var(--text-dim);
  text-decoration: none;
  letter-spacing: .05em;
  transition: color .2s;
  position: relative;
}
nav a::before { content: '//'; margin-right: .3em; opacity: .4; }
nav a:hover { color: var(--green); }

.nav-badge {
  background: var(--green-dim);
  border: 1px solid var(--green-glow);
  color: var(--green);
  font-family: var(--font-code);
  font-size: .65rem;
  padding: .15rem .5rem;
  border-radius: 4px;
  letter-spacing: .05em;
}

/* ═══════════════════════════════════════════
   AD BANNER
═══════════════════════════════════════════ */
.ad-banner {
  background: var(--bg2);
  border-bottom: 1px solid var(--border);
  padding: .5rem 2rem;
  display: flex; align-items: center; justify-content: center;
}

.ad-slot {
  background: var(--surface);
  border: 1px dashed var(--border-light);
  border-radius: var(--radius);
  display: flex; align-items: center; justify-content: center;
  color: var(--text-dim);
  font-family: var(--font-code);
  font-size: .68rem;
  position: relative;
}
.ad-slot::before {
  content: '/* AD */';
  position: absolute; top: 5px; left: 8px;
  font-size: .6rem; color: var(--border-light);
  font-family: var(--font-code);
}
.ad-leaderboard { width: 728px; max-width: 100%; height: 90px; }
.ad-rectangle   { width: 300px; height: 250px; flex-shrink: 0; }
.ad-sidebar     { width: 160px; height: 600px; flex-shrink: 0; }

/* ═══════════════════════════════════════════
   HERO
═══════════════════════════════════════════ */
.hero {
  text-align: center;
  padding: 4rem 2rem 2.5rem;
  position: relative; z-index: 1;
  max-width: 1400px;
  margin: 0 auto;
}

.hero-tag {
  display: inline-flex; align-items: center; gap: .5rem;
  background: var(--green-dim);
  border: 1px solid var(--green-glow);
  color: var(--green);
  font-family: var(--font-code);
  font-size: .72rem;
  padding: .3rem 1rem;
  border-radius: 4px;
  margin-bottom: 2rem;
  letter-spacing: .08em;
  animation: fadeDown .6s ease both;
}
.hero-tag::before { content: '$'; opacity: .6; }

@keyframes fadeDown {
  from { opacity:0; transform:translateY(-10px); }
  to   { opacity:1; transform:translateY(0); }
}

.hero h1 {
  font-family: var(--font-ui);
  font-weight: 900;
  font-size: clamp(3.5rem, 9vw, 7.5rem);
  line-height: .95;
  letter-spacing: -4px;
  margin-bottom: 1.5rem;
  text-align: center;
  animation: fadeUp .7s ease .1s both;
}

.hero h1 .line1 {
  display: block;
  color: var(--text-bright);
}
.hero h1 .line2 {
  display: block;
  color: transparent;
  -webkit-text-stroke: 2px var(--green);
}

@keyframes fadeUp {
  from { opacity:0; transform:translateY(20px); }
  to   { opacity:1; transform:translateY(0); }
}

.hero p {
  font-family: var(--font-code);
  font-size: .9rem;
  color: var(--text-dim);
  max-width: 480px;
  margin: 0 auto 2.5rem;
  line-height: 1.8;
  animation: fadeUp .7s ease .2s both;
}
.hero p .highlight { color: var(--green); }

/* ── Tabs ───────────────────────────────── */
.tabs {
  display: flex; flex-wrap: wrap; gap: .4rem;
  justify-content: center;
  animation: fadeUp .7s ease .3s both;
}

.tab-btn {
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text-dim);
  font-family: var(--font-code);
  font-size: .75rem;
  padding: .4rem 1rem;
  border-radius: 4px;
  cursor: pointer;
  transition: all .18s;
  position: relative;
  overflow: hidden;
}
.tab-btn::before {
  content: '';
  position: absolute; inset: 0;
  background: var(--green-dim);
  opacity: 0;
  transition: opacity .18s;
}
.tab-btn:hover { border-color: var(--green); color: var(--green); }
.tab-btn:hover::before { opacity: 1; }
.tab-btn.active {
  background: var(--green-dim);
  border-color: var(--green);
  color: var(--green);
  font-weight: 700;
}

/* ═══════════════════════════════════════════
   LAYOUT
═══════════════════════════════════════════ */
.layout {
  display: grid;
  grid-template-columns: 180px 1fr 180px;
  gap: 2rem;
  max-width: 1600px;
  margin: 0 auto;
  padding: 0 2rem 5rem;
  position: relative; z-index: 1;
}

@media (max-width: 860px) {
  .layout { grid-template-columns: 1fr; }
  .sidebar-ads { display: none; }
}

/* ═══════════════════════════════════════════
   TOOL PANELS
═══════════════════════════════════════════ */
.tool-panel { display: none; }
.tool-panel.active {
  display: block;
  animation: fadeUp .3s ease both;
}

/* ── Tool Card ──────────────────────────── */
.tool-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 0 40px rgba(0,0,0,.4);
}

/* window chrome bar */
.tool-header {
  padding: .75rem 1.2rem;
  border-bottom: 1px solid var(--border);
  display: flex; align-items: center; gap: .75rem;
  background: var(--surface);
}

.window-dots {
  display: flex; gap: .35rem; flex-shrink: 0;
}
.window-dots span {
  width: 11px; height: 11px;
  border-radius: 50%;
}
.window-dots span:nth-child(1) { background: #ff5f57; }
.window-dots span:nth-child(2) { background: #febc2e; }
.window-dots span:nth-child(3) { background: #28c840; }

.tool-title-bar {
  flex: 1;
  font-family: var(--font-code);
  font-size: .78rem;
  color: var(--text-dim);
  text-align: center;
}
.tool-title-bar strong { color: var(--text); font-weight: 500; }

/* ── Tool Body ──────────────────────────── */
.tool-body { padding: 2rem; }

/* line number gutter effect on textareas */
.tool-body-inner {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  margin-bottom: 1rem;
}

/* Direction bar */
.direction-bar {
  display: flex; align-items: center;
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: .25rem;
  margin: 0 auto 1.2rem;
  width: fit-content;
  gap: .25rem;
}

.dir-btn {
  background: transparent; border: none;
  color: var(--text-dim);
  font-family: var(--font-code);
  font-size: .75rem;
  padding: .35rem .9rem;
  border-radius: 4px;
  cursor: pointer;
  transition: all .18s;
}
.dir-btn:hover { color: var(--green); }
.dir-btn.active {
  background: var(--green);
  color: #000;
  font-weight: 700;
}

/* IO Grid */
.io-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-bottom: 1rem;
}
@media(max-width:640px) { .io-grid { grid-template-columns: 1fr; } }

.io-box label {
  display: flex; align-items: center; gap: .4rem;
  font-family: var(--font-code);
  font-size: .68rem;
  color: var(--text-dim);
  margin-bottom: .4rem;
  letter-spacing: .06em;
  text-transform: uppercase;
}
.io-box label::before {
  content: '';
  display: inline-block;
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--green);
  opacity: .6;
}

.io-box textarea {
  width: 100%; height: 360px;
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  font-family: var(--font-code);
  font-size: .8rem;
  padding: 1rem;
  resize: vertical;
  outline: none;
  transition: border-color .2s, box-shadow .2s;
  line-height: 1.6;
}
.io-box textarea:focus {
  border-color: var(--green);
  box-shadow: 0 0 0 3px var(--green-dim);
}
.io-box textarea[readonly] {
  color: var(--green);
  background: rgba(57,255,132,.03);
}

/* Buttons */
.btn-row {
  display: flex; gap: .6rem;
  flex-wrap: wrap;
  justify-content: center;
}

.btn {
  display: inline-flex; align-items: center; gap: .4rem;
  padding: .55rem 1.3rem;
  border-radius: 6px;
  font-family: var(--font-code);
  font-size: .78rem;
  font-weight: 700;
  cursor: pointer;
  border: none;
  transition: all .18s;
  letter-spacing: .03em;
}

.btn-primary {
  background: var(--green);
  color: #000;
  box-shadow: 0 0 20px var(--green-glow);
}
.btn-primary:hover {
  filter: brightness(1.1);
  box-shadow: 0 0 30px var(--green-glow);
  transform: translateY(-1px);
}

.btn-secondary {
  background: var(--surface);
  border: 1px solid var(--border-light);
  color: var(--text);
}
.btn-secondary:hover {
  border-color: var(--blue);
  color: var(--blue);
}

.btn-danger {
  background: transparent;
  border: 1px solid rgba(255,80,80,.3);
  color: rgba(255,80,80,.7);
}
.btn-danger:hover {
  background: rgba(255,80,80,.08);
  border-color: rgba(255,80,80,.6);
  color: #ff5050;
}

/* Status */
.status {
  margin-top: .75rem;
  font-family: var(--font-code);
  font-size: .73rem;
  padding: .5rem .9rem;
  border-radius: 6px;
  display: none;
}
.status.ok {
  display: block;
  background: var(--green-dim);
  color: var(--green);
  border: 1px solid var(--green-glow);
}
.status.err {
  display: block;
  background: rgba(255,80,80,.08);
  color: #ff6666;
  border: 1px solid rgba(255,80,80,.2);
}

/* Mid-content ad */
.ad-mid {
  margin: 1.5rem 0;
  display: flex;
  justify-content: center;
}

/* ═══════════════════════════════════════════
   SIDEBAR
═══════════════════════════════════════════ */
.sidebar-ads {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  padding-top: .5rem;
}

/* ═══════════════════════════════════════════
   FOOTER
═══════════════════════════════════════════ */
footer {
  border-top: 1px solid var(--border);
  padding: 1.5rem 2rem;
  position: relative; z-index: 1;
  display: flex; align-items: center; justify-content: space-between;
  flex-wrap: wrap; gap: 1rem;
}

.footer-left {
  font-family: var(--font-code);
  font-size: .72rem;
  color: var(--text-dim);
}
.footer-left span { color: var(--green); }

.footer-right {
  display: flex; gap: 1.5rem;
}
.footer-right a {
  font-family: var(--font-code);
  font-size: .72rem;
  color: var(--text-dim);
  text-decoration: none;
  transition: color .2s;
}
.footer-right a:hover { color: var(--green); }