:root {
  --bg: #07070c;
  --bg-2: #101018;
  --text: #f4f6fb;
  --muted: #9aa3b8;
  --line: rgba(255, 255, 255, 0.1);
  --cyan: #00f2ea;
  --magenta: #ff0050;
  --panel: rgba(16, 16, 24, 0.82);
  --glow: 0 0 48px rgba(0, 242, 234, 0.18);
  --radius: 18px;
  --font-display: "Syne", system-ui, sans-serif;
  --font-body: "Manrope", system-ui, sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  font-family: var(--font-body);
  background:
    radial-gradient(1200px 600px at 10% -10%, rgba(0, 242, 234, 0.18), transparent 55%),
    radial-gradient(900px 500px at 100% 0%, rgba(255, 0, 80, 0.16), transparent 50%),
    linear-gradient(180deg, #05050a 0%, var(--bg) 45%, #090912 100%);
  line-height: 1.55;
}

a {
  color: var(--cyan);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.wrap {
  width: min(1080px, calc(100% - 2rem));
  margin: 0 auto;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem 0 0.5rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  color: var(--text);
  text-decoration: none;
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: -0.02em;
  font-size: 1.15rem;
}

.brand img {
  width: 34px;
  height: 34px;
}

.nav {
  display: flex;
  gap: 1rem;
  font-size: 0.95rem;
}

.nav a {
  color: var(--muted);
  text-decoration: none;
}

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

.hero {
  min-height: calc(100vh - 5rem);
  display: grid;
  align-content: center;
  gap: 1.25rem;
  padding: 1.5rem 0 3rem;
}

.hero-brand {
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 7vw, 4.4rem);
  font-weight: 800;
  letter-spacing: -0.045em;
  line-height: 0.95;
  margin: 0;
  background: linear-gradient(120deg, #fff 20%, var(--cyan) 55%, var(--magenta) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  animation: rise 0.8s ease both;
}

.hero h1 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.35rem, 3.4vw, 2rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  max-width: 18ch;
  animation: rise 0.9s ease 0.05s both;
}

.hero-lead {
  margin: 0;
  color: var(--muted);
  max-width: 38ch;
  font-size: 1.05rem;
  animation: rise 1s ease 0.1s both;
}

.calculator {
  margin-top: 0.5rem;
  padding: 1.25rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
  backdrop-filter: blur(12px);
  box-shadow: var(--glow);
  animation: rise 1.05s ease 0.15s both;
}

.calc-grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: 1fr;
}

@media (min-width: 720px) {
  .calc-grid {
    grid-template-columns: 1fr 1fr;
  }
}

label {
  display: grid;
  gap: 0.4rem;
  font-size: 0.85rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

input[type="number"] {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #0c0c14;
  color: var(--text);
  font: inherit;
  font-size: 1.35rem;
  font-weight: 700;
  padding: 0.85rem 1rem;
  outline: none;
}

input[type="number"]:focus {
  border-color: rgba(0, 242, 234, 0.55);
  box-shadow: 0 0 0 3px rgba(0, 242, 234, 0.12);
}

.gbp {
  margin-top: 0.35rem;
  color: var(--cyan);
  font-weight: 600;
}

.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 1rem;
}

.chips button {
  border: 1px solid var(--line);
  background: #0c0c14;
  color: var(--text);
  border-radius: 999px;
  padding: 0.45rem 0.8rem;
  font: inherit;
  font-size: 0.9rem;
  cursor: pointer;
  transition: border-color 0.15s ease, transform 0.15s ease;
}

.chips button:hover {
  border-color: var(--cyan);
  transform: translateY(-1px);
}

.chips .gift {
  border-color: rgba(255, 0, 80, 0.35);
}

.summary {
  margin: 1rem 0 0;
  font-weight: 600;
}

.disclaimer {
  margin: 0.85rem 0 0;
  color: var(--muted);
  font-size: 0.88rem;
}

.section {
  padding: 2.5rem 0 1rem;
}

.section h2 {
  font-family: var(--font-display);
  letter-spacing: -0.03em;
  margin: 0 0 1rem;
  font-size: clamp(1.4rem, 3vw, 1.9rem);
}

.section p {
  color: var(--muted);
  max-width: 65ch;
}

.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: rgba(12, 12, 20, 0.7);
}

table {
  width: 100%;
  border-collapse: collapse;
  min-width: 420px;
}

th,
td {
  padding: 0.85rem 1rem;
  text-align: left;
  border-bottom: 1px solid var(--line);
}

th {
  color: var(--muted);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

tr:last-child td {
  border-bottom: 0;
}

.faq details {
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 0.9rem 1rem;
  margin-bottom: 0.65rem;
  background: rgba(12, 12, 20, 0.55);
}

.faq summary {
  cursor: pointer;
  font-weight: 700;
}

.faq p {
  margin: 0.7rem 0 0;
}

.page {
  padding: 1.5rem 0 3.5rem;
}

.page h1 {
  font-family: var(--font-display);
  letter-spacing: -0.03em;
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  margin: 0 0 1rem;
}

.page p,
.page li {
  color: var(--muted);
  max-width: 70ch;
}

.site-footer {
  border-top: 1px solid var(--line);
  margin-top: 2rem;
  padding: 1.5rem 0 2.5rem;
  color: var(--muted);
  font-size: 0.92rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.25rem;
  justify-content: space-between;
}

@keyframes rise {
  from {
    opacity: 0;
    transform: translateY(14px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (prefers-reduced-motion: reduce) {
  * {
    animation: none !important;
    transition: none !important;
  }
}