:root {
  --bg: #07080b;
  --panel: #0f1218;
  --panel2: #0b0e13;
  --text: #e9edf5;
  --muted: #a9b2c3;
  --green: #35ff7a;
  --green2: #00d26a;
  --lime: #fcff47; /* Updated lime color */
  --lime2: #d4ff00; /* Secondary lime shade */
  --yellow: #ffe600; /* Bright yellow */
  --line: rgba(255, 255, 255, 0.08);
  --shadow: 0 14px 40px rgba(0, 0, 0, 0.55);
  --radius: 18px;
  --radius2: 26px;
  --max: 1120px;
}

* {
  box-sizing: border-box;
}

html,
body {
  height: 100%;
}

body {
  margin: 0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Arial, "Apple Color Emoji", "Segoe UI Emoji";
  background: radial-gradient(1100px 500px at 70% -10%, rgba(252, 255, 71, 0.20), transparent 60%),
    radial-gradient(900px 500px at 10% 0%, rgba(212, 255, 0, 0.12), transparent 55%),
    radial-gradient(1200px 600px at 50% 110%, rgba(255, 230, 0, 0.10), transparent 60%),
    linear-gradient(180deg, #06070a, #05060a 55%, #04050a);
  color: var(--text);
}

a {
  color: inherit;
  text-decoration: none;
}

a:hover {
  opacity: 0.95;
}

img {
  max-width: 100%;
  display: block;
}

.container {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 18px;
}

.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(7, 8, 11, 0.72);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 0;
  gap: 14px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  letter-spacing: 0.2px;
}

.brand img {
  width: 34px;
  height: 34px;
  filter: drop-shadow(0 6px 14px rgba(0, 0, 0, 0.4));
}

.brand span {
  font-size: 15px;
}

.nav-links {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  align-items: center;
  justify-content: flex-end;
}

.nav-links a {
  padding: 9px 12px;
  border: 1px solid transparent;
  border-radius: 999px;
  color: var(--muted);
  font-weight: 600;
  font-size: 13px;
}

.nav-links a.active,
.nav-links a:hover {
  color: var(--text);
  border-color: var(--line);
  background: rgba(255, 255, 255, 0.03);
}

.pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  border-radius: 999px;
  border: 1px solid rgba(252, 255, 71, 0.25);
  background: linear-gradient(180deg, rgba(252, 255, 71, 0.12), rgba(252, 255, 71, 0.05));
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.35);
  color: var(--text);
  font-weight: 800;
  letter-spacing: 0.3px;
}

.pill small {
  color: var(--muted);
  font-weight: 700;
}

.pill .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--lime);
  box-shadow: 0 0 18px rgba(252, 255, 71, 0.8);
}

.hero {
  padding: 44px 0 22px;
}

.hero-grid {
  display: grid;
  gap: 20px;
  grid-template-columns: 1.15fr 0.85fr;
}

@media (max-width: 900px) {
  .hero-grid {
    grid-template-columns: 1fr;
  }
}

.card {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.04), rgba(255, 255, 255, 0.02));
  border: 1px solid var(--line);
  border-radius: var(--radius2);
  box-shadow: var(--shadow);
}

.card-pad {
  padding: 22px;
}

.hero h1 {
  margin: 12px 0 10px;
  font-size: clamp(34px, 4vw, 54px);
  line-height: 1.03;
  letter-spacing: -0.8px;
}

.hero p {
  margin: 0;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.7;
}

.kbd {
  display: inline-flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-top: 14px;
}

.tag {
  font-size: 12px;
  font-weight: 800;
  color: rgba(233, 237, 245, 0.9);
  padding: 8px 10px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.10);
  background: rgba(0, 0, 0, 0.22);
}

.cta-row {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 18px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 11px 14px;
  border-radius: 14px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
  font-weight: 900;
  font-size: 13px;
  cursor: pointer;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn.primary {
  border-color: rgba(252, 255, 71, 0.35);
  background: linear-gradient(180deg, rgba(252, 255, 71, 0.18), rgba(252, 255, 71, 0.07));
}

.btn.green {
  border-color: rgba(255, 230, 0, 0.45);
  background: linear-gradient(180deg, rgba(255, 230, 0, 0.22), rgba(255, 230, 0, 0.08));
}

.btn.ghost {
  background: transparent;
}

.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

@media (max-width: 760px) {
  .grid-2 {
    grid-template-columns: 1fr;
  }
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}

@media (max-width: 980px) {
  .grid-3 {
    grid-template-columns: 1fr;
  }
}

.section {
  padding: 24px 0;
}

.h2 {
  font-size: 20px;
  letter-spacing: -0.2px;
  margin: 0 0 10px;
}

.sub {
  margin: 0 0 14px;
  color: var(--muted);
  line-height: 1.7;
}

.panel {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.03), rgba(255, 255, 255, 0.015));
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 16px;
}

.row {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
}

.mono {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
}

.copy {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  padding: 10px 12px;
  border-radius: 14px;
  border: 1px dashed rgba(255, 255, 255, 0.16);
  background: rgba(0, 0, 0, 0.25);
}

.copy button {
  padding: 8px 10px;
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
  font-weight: 900;
  cursor: pointer;
}

.copy button:hover {
  transform: translateY(-1px);
}

iframe {
  width: 100%;
  border: 1px solid rgba(255, 255, 255, 0.10);
  border-radius: var(--radius);
  height: 520px;
  background: rgba(0, 0, 0, 0.25);
}

@media (max-width: 760px) {
  iframe {
    height: 560px;
  }
}

.footer {
  padding: 26px 0 44px;
  color: var(--muted);
  border-top: 1px solid var(--line);
  margin-top: 30px;
}

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

.small {
  font-size: 12px;
  color: var(--muted);
  line-height: 1.6;
}

form {
  display: grid;
  gap: 10px;
}

label {
  font-size: 12px;
  color: var(--muted);
  font-weight: 800;
}

input,
select,
textarea {
  width: 100%;
  padding: 12px 12px;
  border-radius: 14px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(0, 0, 0, 0.22);
  color: var(--text);
  outline: none;
}

textarea {
  min-height: 120px;
  resize: vertical;
}

.hr {
  height: 1px;
  background: var(--line);
  margin: 14px 0;
}

.notice {
  padding: 12px 14px;
  border-radius: 14px;
  border: 1px solid rgba(252, 255, 71, 0.18);
  background: linear-gradient(180deg, rgba(252, 255, 71, 0.08), rgba(252, 255, 71, 0.03));
  color: var(--text);
}

.notice strong {
  color: var(--lime);
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 10px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.10);
  background: rgba(0, 0, 0, 0.18);
  color: var(--muted);
  font-weight: 800;
  font-size: 12px;
}

.table {
  width: 100%;
  border-collapse: collapse;
  overflow: hidden;
  border-radius: var(--radius);
  border: 1px solid var(--line);
}

.table th,
.table td {
  padding: 12px 12px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  font-size: 13px;
}

.table th {
  color: var(--muted);
  font-size: 12px;
  letter-spacing: 0.2px;
  text-transform: uppercase;
}

.table tr:last-child td {
  border-bottom: none;
}

.table tr:hover td {
  background: rgba(255, 255, 255, 0.02);
}

.quiz-q {
  font-weight: 900;
  margin: 0 0 10px;
}

.opt {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  padding: 10px 10px;
  border-radius: 14px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(0, 0, 0, 0.18);
  cursor: pointer;
}

.opt:hover {
  background: rgba(255, 255, 255, 0.03);
}

.opt input {
  margin-top: 3px;
  width: auto;
}

.opt span {
  color: var(--text);
  font-weight: 700;
}

.result {
  padding: 14px;
  border-radius: 16px;
  border: 1px solid rgba(252, 255, 71, 0.22);
  background: linear-gradient(180deg, rgba(252, 255, 71, 0.10), rgba(252, 255, 71, 0.04));
}

.spinner {
  margin: 10px auto;
  width: 40px;
  height: 40px;
  border: 4px solid rgba(0, 0, 0, 0.1);
  border-top: 4px solid #00ff88;
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  0% {
    transform: rotate(0deg);
  }
  100% {
    transform: rotate(360deg);
  }
}