:root {
  --bg: #0b1220;
  --card: rgba(255, 255, 255, 0.06);
  --text: #e7eefc;
  --muted: rgba(231, 238, 252, 0.72);
  --border: rgba(231, 238, 252, 0.16);
  --accent: #7dd3fc;
  --accent2: #a78bfa;
  --shadow: 0 10px 40px rgba(0, 0, 0, 0.35);
}

* {
  box-sizing: border-box;
}

html,
body {
  height: 100%;
}

body {
  margin: 0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell,
    Noto Sans, Helvetica, Arial, "Apple Color Emoji", "Segoe UI Emoji";
  background: radial-gradient(1200px 600px at 10% 10%, rgba(125, 211, 252, 0.15), transparent),
    radial-gradient(1000px 600px at 90% 30%, rgba(167, 139, 250, 0.14), transparent), var(--bg);
  color: var(--text);
  line-height: 1.55;
}

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

.container {
  width: min(1100px, calc(100% - 48px));
  margin: 0 auto;
}

.header {
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(10px);
  background: rgba(11, 18, 32, 0.65);
  border-bottom: 1px solid var(--border);
}

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

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  letter-spacing: 0.2px;
}

.logo {
  width: 34px;
  height: 34px;
  display: block;
  border-radius: 10px;
  object-fit: cover;
  box-shadow: var(--shadow);
}

.navlinks {
  display: flex;
  gap: 14px;
  align-items: center;
}

.navlinks a {
  padding: 8px 10px;
  border-radius: 10px;
  color: var(--muted);
  border: 1px solid transparent;
}

.navlinks a[aria-current="page"] {
  color: var(--text);
  border-color: var(--border);
  background: rgba(255, 255, 255, 0.04);
}

.hero {
  padding: 56px 0 28px;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 24px;
  align-items: start;
}

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

.h1 {
  font-size: clamp(30px, 3.8vw, 44px);
  line-height: 1.12;
  margin: 0 0 14px;
}

.lead {
  margin: 0;
  color: var(--muted);
  font-size: 16px;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 18px;
  box-shadow: var(--shadow);
}

.card-inner {
  padding: 18px;
}

.kpi {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-top: 16px;
}

.kpi .item {
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 12px;
  background: rgba(255, 255, 255, 0.03);
}

.kpi .label {
  font-size: 12px;
  letter-spacing: 0.4px;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0 0 6px;
}

.kpi .value {
  margin: 0;
  font-weight: 700;
}

.section {
  padding: 20px 0 56px;
}

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

@media (max-width: 900px) {
  .grid-3 {
    grid-template-columns: 1fr;
  }
}

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

.p {
  margin: 0;
  color: var(--muted);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 14px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.05);
  color: var(--text);
  cursor: pointer;
}

.btn.primary {
  border-color: rgba(125, 211, 252, 0.35);
  background: linear-gradient(135deg, rgba(125, 211, 252, 0.16), rgba(167, 139, 250, 0.12));
}

.btn:focus-visible {
  outline: 2px solid rgba(125, 211, 252, 0.7);
  outline-offset: 2px;
}

.form {
  display: grid;
  gap: 12px;
}

.label {
  display: grid;
  gap: 6px;
  font-weight: 600;
}

input[type="text"],
textarea {
  width: 100%;
  padding: 10px 12px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: rgba(11, 18, 32, 0.55);
  color: var(--text);
}

textarea {
  min-height: 180px;
  resize: vertical;
}

.hint {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
}

.row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
}

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

.footer {
  padding: 18px 0 40px;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 13px;
}

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

.notice {
  border: 1px solid rgba(125, 211, 252, 0.25);
  background: rgba(125, 211, 252, 0.07);
  border-radius: 14px;
  padding: 12px;
  color: var(--text);
}

.output {
  white-space: pre-wrap;
  word-break: break-word;
  background: rgba(0, 0, 0, 0.25);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 12px;
}

 .modal {
   position: fixed;
   inset: 0;
   z-index: 100;
   display: grid;
   place-items: center;
 }

 .modal[hidden] {
   display: none;
 }

 .modal-backdrop {
   position: absolute;
   inset: 0;
   background: rgba(0, 0, 0, 0.55);
 }

 .modal-card {
   position: relative;
   width: min(520px, calc(100% - 40px));
   background: rgba(11, 18, 32, 0.95);
   border: 1px solid var(--border);
   border-radius: 18px;
   box-shadow: var(--shadow);
   padding: 18px;
 }