/* ─────────────────────────────────────────
   Lightning Tools — Design System
   Terminal-grade dark with neon green
───────────────────────────────────────── */

:root {
  --bg:           #060606;
  --surface:      #0c0c0c;
  --surface-2:    #111111;
  --border:       #1c1c1c;
  --border-bright:#2e2e2e;
  --text:         #d0d0d0;
  --muted:        #eaeaea;
  --muted-bright: #909090;
  --accent:       #00e87a;
  --accent-dim:   rgba(0, 232, 122, 0.07);
  --accent-glow:  rgba(0, 232, 122, 0.22);
  --accent-dark:  rgba(0, 232, 122, 0.15);
  --code-bg:      #080808;
  --green:        #00e87a;
  --red:          #ff4d6d;
  --bitcoin:      #f7931a;
  --bitcoin-dim:  rgba(247, 147, 26, 0.08);
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
  --font-sans: 'IBM Plex Sans', system-ui, sans-serif;
  --radius:       6px;
  --header-h:     56px;
}

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

/* ── Scrollbar ── */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--border-bright); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--muted); }

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 15px;
  line-height: 1.65;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  /* Dot grid background */
  background-image: radial-gradient(circle, #191919 1px, transparent 1px);
  background-size: 28px 28px;
  background-attachment: fixed;
}

/* Fade the dot grid at edges */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background: radial-gradient(ellipse 80% 80% at 50% 50%, transparent 20%, var(--bg) 100%);
  pointer-events: none;
  z-index: 0;
}

/* Green ambient glow — full-viewport background, not clipped by content */
body::after {
  content: '';
  position: fixed;
  top: -10%;
  left: -15%;
  width: 70%;
  height: 70%;
  background: radial-gradient(ellipse at 35% 30%, rgba(0, 232, 122, 0.07) 0%, transparent 65%);
  pointer-events: none;
  z-index: 0;
}

body > * { position: relative; z-index: 1; }

a { color: var(--accent); text-decoration: none; }
a:hover { color: #fff; }

/* ── Staging banner ── */
.staging-banner {
  align-items: center;
  gap: 12px;
  background: #3b1d8a;
  padding: 6px 20px;
  font-size: 12px;
  font-weight: 600;
  font-family: var(--font-mono);
  border-bottom: 1px solid #5b21b6;
}
.staging-label { color: #fff; letter-spacing: 0.06em; }
.staging-input {
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.25);
  border-radius: var(--radius);
  color: #fff;
  font-size: 12px;
  padding: 3px 8px;
  font-family: var(--font-mono);
}
.staging-input::placeholder { color: rgba(255,255,255,0.4); }
.staging-input:focus { outline: 1px solid #a78bfa; }
.staging-btn {
  background: rgba(255,255,255,0.12);
  border: 1px solid rgba(255,255,255,0.3);
  border-radius: var(--radius);
  color: #fff;
  cursor: pointer;
  font-size: 12px;
  font-weight: 700;
  padding: 3px 10px;
  font-family: var(--font-mono);
}
.staging-btn:hover { background: rgba(255,255,255,0.22); }

/* ── Header ── */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  gap: 32px;
  padding: 0 28px;
  height: var(--header-h);
  background: rgba(6, 6, 6, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  flex-wrap: wrap;
}

.site-logo {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 15px;
  color: var(--accent);
  white-space: nowrap;
  letter-spacing: -0.01em;
  display: flex;
  align-items: center;
  gap: 6px;
}
.site-logo:hover { color: #fff; }

.logo-bolt {
  font-size: 14px;
  filter: drop-shadow(0 0 6px var(--accent));
  animation: boltPulse 3s ease-in-out infinite;
}

@keyframes boltPulse {
  0%, 100% { filter: drop-shadow(0 0 4px var(--accent)); }
  50%       { filter: drop-shadow(0 0 12px var(--accent)); }
}

.site-nav { display: flex; gap: 24px; flex: 1; }
.site-nav a {
  color: var(--muted-bright);
  font-size: 13px;
  font-family: var(--font-mono);
  letter-spacing: 0.01em;
  transition: color 0.15s;
}
.site-nav a:hover { color: var(--text); }

/* ── Main ── */
.site-main {
  max-width: 860px;
  width: 100%;
  margin: 0 auto;
  padding: 64px 28px 80px;
  flex: 1;
}

/* ── Footer ── */
.site-footer {
  padding: 18px 28px;
  text-align: center;
  font-size: 12px;
  font-family: var(--font-mono);
  color: var(--muted);
  border-top: 1px solid var(--border);
  letter-spacing: 0.02em;
}
.site-footer a { color: var(--muted); }
.site-footer a:hover { color: var(--accent); }

/* ── Typography ── */
h1 {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 2.4rem;
  line-height: 1.15;
  letter-spacing: -0.03em;
  color: #fff;
  margin-bottom: 16px;
}

h2 {
  font-family: var(--font-mono);
  font-size: 1.05rem;
  font-weight: 700;
  margin: 56px 0 20px;
  color: var(--accent);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
h2::before { content: '// '; opacity: 0.4; }

.card > h2:first-child { margin-top: 0; }

h3 {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 500;
  margin: 28px 0 8px;
  color: var(--muted-bright);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

p { margin-bottom: 16px; color: var(--text); }

strong { color: #fff; font-weight: 600; }

/* ── Hero ── */
.hero {
  padding: 64px 0 72px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 0;
  position: relative;
}


.hero-prompt {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--accent);
  margin-bottom: 20px;
  opacity: 0.7;
  letter-spacing: 0.02em;
}
.hero-prompt::before { content: '$ '; }

.hero-title {
  font-size: clamp(2.2rem, 5vw, 3.6rem);
  margin-bottom: 20px;
  background: linear-gradient(135deg, #fff 0%, #a0a0a0 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1.12;
}

.hero-sub {
  font-size: 16px;
  color: var(--muted-bright);
  max-width: 520px;
  line-height: 1.7;
  margin-bottom: 32px;
}

.hero-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

/* ── How it works ── */
.how-it-works {
  padding: 0;
}

.steps {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0;
  margin: 0 0 8px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

.steps li {
  display: flex;
  align-items: flex-start;
  gap: 20px;
  padding: 20px 24px;
  border-bottom: 1px solid var(--border);
  background: var(--surface);
  transition: background 0.15s;
}
.steps li:last-child { border-bottom: none; }
.steps li:hover { background: var(--surface-2); }

.step-num {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  color: var(--accent);
  background: var(--accent-dim);
  border: 1px solid rgba(0, 232, 122, 0.2);
  border-radius: 4px;
  padding: 3px 7px;
  letter-spacing: 0.05em;
  flex-shrink: 0;
  margin-top: 2px;
}

.steps li strong {
  display: block;
  font-family: var(--font-sans);
  font-size: 15px;
  font-weight: 600;
  color: #fff;
  margin-bottom: 4px;
}

.steps li p {
  font-size: 13px;
  color: var(--muted-bright);
  margin: 0;
  line-height: 1.5;
}

/* ── Code ── */
pre, code {
  font-family: var(--font-mono);
  font-size: 13px;
}

pre {
  background: var(--code-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  overflow-x: auto;
  margin: 16px 0;
  position: relative;
  transition: border-color 0.2s, box-shadow 0.2s;
}
pre:hover {
  border-color: rgba(0, 232, 122, 0.3);
  box-shadow: 0 0 20px rgba(0, 232, 122, 0.06);
}

/* Terminal chrome bar */
pre::before {
  content: '● ● ●';
  display: block;
  font-size: 10px;
  letter-spacing: 4px;
  color: var(--border-bright);
  margin-bottom: 14px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border);
}

code {
  background: var(--surface-2);
  border: 1px solid var(--border);
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 12px;
  color: var(--accent);
}
pre code {
  background: none;
  border: none;
  padding: 0;
  color: #b0d4b0;
  font-size: 13px;
}

/* ── Cards / surfaces ── */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  margin: 24px 0;
  transition: border-color 0.2s;
}
.card:hover { border-color: var(--border-bright); }

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--accent);
  color: #000;
  border: none;
  padding: 10px 22px;
  border-radius: var(--radius);
  font-weight: 700;
  font-size: 13px;
  font-family: var(--font-mono);
  cursor: pointer;
  letter-spacing: 0.02em;
  transition: background 0.15s, box-shadow 0.15s, transform 0.1s;
  text-decoration: none;
}
.btn:hover:not(:disabled) {
  background: #00ffaa;
  color: #000;
  box-shadow: 0 0 20px var(--accent-glow);
  transform: translateY(-1px);
}
.btn:active { transform: translateY(0); }
.btn:disabled { opacity: 0.35; cursor: not-allowed; }

.btn-ghost {
  background: transparent;
  color: var(--muted-bright);
  border: 1px solid var(--border-bright);
}
.btn-ghost:hover:not(:disabled) {
  background: var(--surface-2);
  color: var(--text);
  box-shadow: none;
  border-color: var(--muted);
}

.btn.btn-secondary {
  background: transparent;
  color: var(--muted-bright);
  border: 1px solid var(--border-bright);
}
.btn.btn-secondary:hover:not(:disabled) {
  background: var(--surface-2);
  color: var(--text);
  box-shadow: none;
  border-color: var(--muted);
}

/* ── Pricing badge ── */
.credit-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--accent-dim);
  color: var(--accent);
  font-size: 11px;
  font-weight: 700;
  font-family: var(--font-mono);
  padding: 4px 10px;
  border-radius: 99px;
  border: 1px solid rgba(0, 232, 122, 0.2);
  letter-spacing: 0.05em;
  margin-bottom: 20px;
}

/* ── Try-it form ── */
.try-it { margin-top: 16px; }

.try-it label,
.field label {
  display: block;
  font-size: 11px;
  font-family: var(--font-mono);
  color: var(--muted-bright);
  margin-bottom: 6px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.try-it .field,
.field { margin-bottom: 16px; }

.try-it input[type=text],
.try-it input[type=email],
.try-it input[type=url],
.try-it input[type=password],
.try-it select,
.field input[type=number],
.field input[type=text] {
  width: 100%;
  background: var(--bg);
  border: 1px solid var(--border-bright);
  color: var(--text);
  padding: 9px 12px;
  border-radius: var(--radius);
  font-size: 13px;
  font-family: var(--font-mono);
  transition: border-color 0.15s, box-shadow 0.15s;
}
.try-it select { cursor: pointer; }

.try-it input:focus,
.try-it select:focus,
.field input[type=number]:focus,
.field input[type=text]:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-dim);
}

.api-key-field-wrap { display: flex; gap: 8px; }
.api-key-field-wrap input { flex: 1; }

.btn-clear {
  background: none;
  border: 1px solid var(--border-bright);
  color: var(--muted-bright);
  padding: 8px 12px;
  border-radius: var(--radius);
  font-size: 12px;
  font-family: var(--font-mono);
  cursor: pointer;
  white-space: nowrap;
  transition: border-color 0.15s, color 0.15s;
}
.btn-clear:hover { color: var(--text); border-color: var(--muted); }

.save-key-label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 11px;
  font-family: var(--font-mono);
  color: var(--muted);
  margin-top: 8px;
  cursor: pointer;
  user-select: none;
  letter-spacing: 0.04em;
}

.try-it-response { margin-top: 20px; display: none; }
.try-it-response pre { margin: 0; }

.response-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 8px;
  font-size: 12px;
  font-family: var(--font-mono);
}

.response-status { font-weight: 700; letter-spacing: 0.04em; }
.response-status.ok  { color: var(--green); }
.response-status.err { color: var(--red); }
.credits-remaining { color: var(--muted-bright); }

/* ── Service list (home) ── */
.service-list {
  list-style: none;
  display: grid;
  gap: 0;
  margin: 8px 0 32px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

.service-card {
  background: var(--surface);
  padding: 22px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  border-left: 3px solid transparent;
  transition: background 0.15s, border-color 0.15s;
}
.service-card:hover {
  background: var(--surface-2);
  border-left-color: var(--accent);
  text-decoration: none;
}
.service-card:hover .service-arrow { color: var(--accent); transform: translateX(4px); }

.service-card h3 {
  margin: 0 0 4px;
  text-transform: none;
  letter-spacing: 0;
  font-size: 15px;
  font-family: var(--font-sans);
  font-weight: 600;
  color: #fff;
}
.service-card p {
  margin: 0;
  font-size: 13px;
  color: var(--muted-bright);
  line-height: 1.4;
}

.service-card-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}
.service-card-meta .credit-badge { margin-bottom: 0; }

.service-arrow {
  color: var(--muted);
  font-size: 18px;
  flex-shrink: 0;
  transition: color 0.15s, transform 0.15s;
}

/* ── Service page ── */
.service-header { margin-bottom: 4px; }

.breadcrumb {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--muted);
  margin-bottom: 16px;
}
.breadcrumb a { color: var(--muted); }
.breadcrumb a:hover { color: var(--accent); }

.service-desc {
  font-size: 16px;
  color: var(--muted-bright);
  margin-bottom: 4px;
  line-height: 1.6;
}

/* ── Pricing table ── */
table {
  width: 100%;
  border-collapse: collapse;
  font-family: var(--font-mono);
  font-size: 13px;
  margin: 16px 0;
}
th {
  text-align: left;
  padding: 8px 12px;
  border-bottom: 1px solid var(--border-bright);
  color: var(--muted-bright);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}
td {
  padding: 10px 12px;
  border-bottom: 1px solid var(--border);
  color: var(--text);
}
tr:last-child td { border-bottom: none; }
tr:hover td { background: var(--surface-2); }

/* ── Screen-reader only utility ── */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border-width: 0;
}

/* ── Buy credits page ── */
.buy-page .service-header { margin-bottom: 0; }

.buy-hint {
  font-size: 13px;
  font-family: var(--font-mono);
  color: var(--muted-bright);
  margin: 0 0 20px;
}

.poll-status {
  font-size: 13px;
  font-family: var(--font-mono);
  color: var(--accent);
  margin: 0 0 16px;
  min-height: 1.4em;
}

.field-error {
  display: block;
  font-size: 11px;
  font-family: var(--font-mono);
  color: var(--red);
  margin-top: 6px;
  min-height: 16px;
}

/* ── Step indicator ── */
.buy-steps {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 8px;
  padding: 0;
  list-style: none;
}

.buy-step {
  display: flex;
  align-items: center;
  gap: 8px;
  opacity: 0.3;
  transition: opacity 0.25s ease;
}
.buy-step.is-active { opacity: 1; }
.buy-step.is-done   { opacity: 0.6; }

.buy-step-num {
  width: 22px;
  height: 22px;
  border-radius: 4px;
  border: 1px solid var(--border-bright);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 10px;
  font-weight: 700;
  font-family: var(--font-mono);
  color: var(--muted);
  transition: background 0.25s, border-color 0.25s, color 0.25s, box-shadow 0.25s;
}
.buy-step.is-active .buy-step-num {
  background: var(--bitcoin);
  border-color: var(--bitcoin);
  color: #000;
  box-shadow: 0 0 10px rgba(247, 147, 26, 0.35);
}
.buy-step.is-done .buy-step-num {
  background: rgba(0, 232, 122, 0.15);
  border-color: rgba(0, 232, 122, 0.4);
  color: var(--accent);
}

.buy-step-label {
  font-size: 12px;
  font-family: var(--font-mono);
  color: var(--muted);
  letter-spacing: 0.04em;
}
.buy-step.is-active .buy-step-label { color: var(--text); }
.buy-step-arrow { color: var(--border-bright); font-size: 11px; }

/* Buy page — bitcoin orange for payment-specific elements */
.poll-status { color: var(--bitcoin); }
.buy-page .credit-badge {
  background: var(--bitcoin-dim);
  color: var(--bitcoin);
  border-color: rgba(247, 147, 26, 0.25);
}
#btn-generate {
  background: var(--bitcoin);
  color: #000;
}
#btn-generate:hover {
  background: #ffaa44;
  box-shadow: 0 0 20px rgba(247, 147, 26, 0.35);
}

/* ── State sections ── */
.buy-state { display: none; }
.buy-state.is-active {
  display: block;
  animation: stateIn 0.2s ease forwards;
}
@keyframes stateIn {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ── Success card variant ── */
.card--success {
  border-color: rgba(0, 232, 122, 0.3);
  background: linear-gradient(160deg, var(--surface) 0%, rgba(0,232,122,0.04) 100%);
  box-shadow: 0 0 40px rgba(0, 232, 122, 0.05);
}
.card--success h2 {
  color: var(--accent);
  font-size: 1.2rem;
}
.card--success h2::before { content: none; }

/* ── QR code ── */
.qr-wrap {
  display: flex;
  justify-content: center;
  margin: 0 0 24px;
}
.qr-wrap canvas,
.qr-wrap > div {
  display: block;
  border: 6px solid #fff;
  border-radius: 8px;
  box-shadow: 0 0 40px rgba(0, 232, 122, 0.15);
}

/* ── Copy row ── */
.copy-wrap { display: flex; gap: 8px; }
.copy-wrap input {
  flex: 1;
  font-family: var(--font-mono);
  font-size: 12px;
  background: var(--bg);
  border: 1px solid var(--border-bright);
  border-radius: var(--radius);
  padding: 9px 12px;
  color: var(--text);
}

.btn-copy {
  padding: 9px 14px;
  background: var(--surface-2);
  border: 1px solid var(--border-bright);
  border-radius: var(--radius);
  color: var(--text);
  cursor: pointer;
  font-size: 12px;
  font-family: var(--font-mono);
  white-space: nowrap;
  transition: border-color 0.15s, color 0.15s;
}
.btn-copy:hover { border-color: var(--accent); color: var(--accent); }

.invoice-field { margin-bottom: 20px; }

.btn-row {
  display: flex;
  gap: 8px;
  align-items: center;
  margin-bottom: 16px;
}

/* ── Save key section ── */
.save-key-wrap {
  margin: 20px 0;
  padding: 16px 20px;
  background: var(--bg);
  border: 1px solid var(--border-bright);
  border-radius: var(--radius);
}
.save-key-hint {
  font-size: 12px;
  font-family: var(--font-mono);
  color: var(--muted);
  margin: 10px 0 0;
  line-height: 1.6;
}
.save-key-hint code {
  font-family: var(--font-mono);
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--muted-bright);
  padding: 1px 5px;
  border-radius: 3px;
  font-size: 11px;
}
.save-key-status {
  font-size: 12px;
  font-family: var(--font-mono);
  color: var(--accent);
  margin-top: 8px;
  display: block;
  letter-spacing: 0.03em;
}

/* ── Buy next section ── */
.buy-next {
  margin-top: 24px;
  padding-top: 20px;
  border-top: 1px solid rgba(0, 232, 122, 0.15);
}
.buy-next p {
  font-size: 13px;
  font-family: var(--font-mono);
  color: var(--muted-bright);
  margin-bottom: 12px;
}

/* ── Responsive ── */
@media (max-width: 600px) {
  .site-header { padding: 0 16px; gap: 16px; }
  .site-main { padding: 40px 16px 60px; }
  .hero { padding: 40px 0 48px; }
  .hero-title { font-size: 2rem; }
  h1 { font-size: 1.8rem; }
  pre { padding: 14px; }
  pre::before { display: none; }
  .steps li { flex-direction: column; gap: 10px; }
}