:root {
  --bg: #0e0e10;
  --surface: #16161a;
  --border: #2a2a32;
  --accent: #c8f55a;
  --accent2: #5af5c8;
  --text: #e8e8ec;
  --muted: #7a7a88;
  --danger: #f55a5a;
  --shadow: rgba(0,0,0,.4);
  --t: .25s;
}

body.light {
  --bg: #f2f2ed;
  --surface: #ffffff;
  --border: #deded6;
  --accent: #5a8a00;
  --accent2: #007a5a;
  --text: #18181c;
  --muted: #888890;
  --danger: #c0392b;
  --shadow: rgba(0,0,0,.1);
}

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

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'DM Mono', monospace;
  min-height: 100vh;
  transition: background var(--t), color var(--t);
}

body::before {
  content: '';
  position: fixed; inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='0.04'/%3E%3C/svg%3E");
  pointer-events: none; z-index: 0; opacity: .5;
}


.toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
  margin-bottom: 32px;
}

.toolbar-right {
  display: flex;
  align-items: center;
  gap: 10px;
}

.back-home {
  font-size: 0.85rem;
  color: var(--muted);
  text-decoration: none;
  letter-spacing: 0.01em;
  transition: color var(--t);
  flex-shrink: 0;
}

.back-home:hover { color: var(--accent); }

.lang-toggle {
  display: flex;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 99px;
  padding: 4px;
  gap: 2px;
  transition: background var(--t), border-color var(--t);
}

.lang-btn {
  background: transparent;
  border: none;
  border-radius: 99px;
  padding: 6px 16px;
  color: var(--muted);
  font-family: 'DM Mono', monospace;
  font-size: 11px;
  letter-spacing: .1em;
  text-transform: uppercase;
  cursor: pointer;
  transition: background var(--t), color var(--t);
  display: flex;
  align-items: center;
  gap: 6px;
}

.lang-btn .flag {
  width: 20px;
  height: 14px;
  border-radius: 2px;
  overflow: hidden;
  flex-shrink: 0;
  display: block;
}

.lang-btn:hover { color: var(--text); }

.lang-btn.active {
  background: var(--accent);
  color: var(--bg);
  font-weight: 500;
}

.theme-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 99px;
  cursor: pointer;
  transition: background var(--t), border-color var(--t), transform .2s;
  flex-shrink: 0;
}

.theme-btn:hover {
  border-color: var(--accent);
  transform: rotate(22deg);
}

.theme-btn svg {
  width: 16px;
  height: 16px;
  fill: none;
  stroke: var(--muted);
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
  transition: stroke var(--t);
}

.theme-btn:hover svg { stroke: var(--accent); }

.icon-sun  { display: none; }
.icon-moon { display: none; }
body.light .icon-sun       { display: block; }
body:not(.light) .icon-moon { display: block; }


header { text-align: center; margin-bottom: 56px; }

.badge {
  display: inline-block;
  background: var(--accent);
  color: var(--bg);
  font-size: 11px;
  letter-spacing: .15em;
  font-weight: 500;
  padding: 4px 12px;
  border-radius: 99px;
  margin-bottom: 20px;
  text-transform: uppercase;
}

h1 {
  font-family: 'Fraunces', serif;
  font-size: clamp(32px, 6vw, 56px);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -.02em;
  color: var(--text);
}

h1 span { color: var(--accent); }

.subtitle {
  margin-top: 14px;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.7;
  max-width: 480px;
  margin-inline: auto;
}


.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 32px;
  margin-bottom: 20px;
  transition: border-color var(--t);
}
.card:hover { border-color: var(--muted); }

.card-header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 24px;
  padding-top: 16px;
}

.icon {
  width: 36px; height: 36px;
  border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  font-size: 16px;
  flex-shrink: 0;
}
.icon-email { background: rgba(90, 245, 200, .1); border: 1px solid rgba(90,245,200,.2); }
.icon-phone { background: rgba(200, 245, 90, .1); border: 1px solid rgba(200,245,90,.2); }

.card-title { font-family: 'Fraunces', serif; font-size: 18px; font-weight: 700; }

.row { display: grid; grid-template-columns: 1fr auto; gap: 10px; margin-bottom: 14px; align-items: end; }

label {
  display: block;
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--muted);
  text-transform: uppercase;
  margin-bottom: 8px;
}

input {
  width: 100%;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 12px 16px;
  color: var(--text);
  font-family: 'DM Mono', monospace;
  font-size: 13px;
  outline: none;
  transition: border-color var(--t), box-shadow var(--t);
  appearance: none;
}
input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(200,245,90,.08);
}
input::placeholder { color: var(--border); }


.method-row {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 8px;
  margin-bottom: 20px;
}

.method-btn {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px 8px;
  color: var(--muted);
  font-family: 'DM Mono', monospace;
  font-size: 11px;
  letter-spacing: .05em;
  cursor: pointer;
  text-align: center;
  transition: border-color var(--t), color var(--t), background var(--t);
  text-transform: uppercase;
}
.method-btn:hover { border-color: var(--accent); color: var(--accent); }
.method-btn.active {
  border-color: var(--accent);
  background: rgba(200,245,90,.07);
  color: var(--accent);
}


.btn {
  background: var(--accent);
  color: var(--bg);
  border: none;
  border-radius: 10px;
  padding: 12px 20px;
  font-family: 'DM Mono', monospace;
  font-size: 12px;
  font-weight: 500;
  letter-spacing: .08em;
  cursor: pointer;
  white-space: nowrap;
  transition: opacity .15s, transform .1s;
  text-transform: uppercase;
}
.btn:hover { opacity: .88; }
.btn:active { transform: scale(.97); }


.output-block {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 16px;
  margin-top: 10px;
  position: relative;
  min-height: 60px;
}
.output-block.hidden { display: none; }

.output-code {
  font-family: 'DM Mono', monospace;
  font-size: 12px;
  color: var(--accent2);
  white-space: pre-wrap;
  word-break: break-all;
  line-height: 1.7;
  padding-right: 70px;
}

.copy-btn {
  position: absolute;
  top: 10px; right: 10px;
  background: var(--border);
  border: none;
  border-radius: 7px;
  padding: 6px 12px;
  color: var(--muted);
  font-family: 'DM Mono', monospace;
  font-size: 10px;
  cursor: pointer;
  transition: background var(--t), color var(--t);
  text-transform: uppercase;
  letter-spacing: .08em;
}
.copy-btn:hover { background: var(--accent); color: var(--bg); }
.copy-btn.copied { background: var(--accent2); color: var(--bg); }


.preview-label {
  font-size: 10px;
  letter-spacing: .1em;
  color: var(--muted);
  text-transform: uppercase;
  margin-top: 18px;
  margin-bottom: 8px;
}

.preview-box {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 16px 20px;
  font-size: 14px;
}
.preview-box a { color: var(--accent); text-decoration: none; }
.preview-box a:hover { text-decoration: underline; }


.info-wrap { margin-top: 12px; }


.info-row {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 6px;
}

.pill {
  font-size: 10px;
  letter-spacing: .08em;
  text-transform: uppercase;
  padding: 4px 10px;
  border-radius: 99px;
  border: 1px solid;
}
.pill-green { border-color: rgba(200,245,90,.3); color: var(--accent); background: rgba(200,245,90,.05); }
.pill-blue  { border-color: rgba(90,245,200,.3); color: var(--accent2); background: rgba(90,245,200,.05); }
.pill-red   { border-color: rgba(245,90,90,.3); color: var(--danger); background: rgba(245,90,90,.05); }


@media (max-width: 520px) {
  .row { grid-template-columns: 1fr; }
  .method-row { grid-template-columns: 1fr 1fr; }
  .card { padding: 20px; }
}


header, main, footer {
  width: 100%;
}

header {
  padding: 40px 16px 0;
}

main {
  padding: 0 16px 48px;
}

footer {
  padding: 28px 24px;
  border-top: 1px solid var(--border);
  margin-top: 8px;
  transition: border-color var(--t);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  color: var(--muted);
  font-size: 0.78rem;
  letter-spacing: 0.04em;
}

footer a {
  color: var(--muted);
  text-decoration: none;
  transition: color var(--t);
}

footer a:hover { color: var(--text); }

.footer-sep { opacity: 0.5; }

.hero {
  text-align: center;
  padding-bottom: 0;
}

header .container,
main .container {
  max-width: 760px;
  margin-inline: auto;
  position: relative;
  z-index: 1;
}