:root {
  --bg: #0b0f1a;
  --bg-elev: #121829;
  --surface: #161d31;
  --border: #232c45;
  --text: #e8ecf5;
  --muted: #9aa6c0;
  --accent: #4f7cff;
  --accent-2: #00d4b3;
  --max: 1080px;
  --radius: 14px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

.wrap { max-width: var(--max); margin: 0 auto; padding: 0 24px; }

/* Header */
header.site {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(12px);
  background: rgba(11, 15, 26, 0.72);
  border-bottom: 1px solid var(--border);
}
header.site .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: -0.02em;
  color: var(--text);
}
.brand .dot {
  width: 12px; height: 12px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  box-shadow: 0 0 16px var(--accent);
}
nav.site { display: flex; align-items: center; gap: 22px; }
nav.site a { color: var(--muted); font-size: 0.95rem; font-weight: 500; }
nav.site a:hover { color: var(--text); text-decoration: none; }

.lang-toggle {
  display: inline-flex;
  border: 1px solid var(--border);
  border-radius: 999px;
  overflow: hidden;
}
.lang-toggle button {
  background: transparent;
  color: var(--muted);
  border: 0;
  padding: 6px 14px;
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
  transition: 0.15s;
}
.lang-toggle button.active { background: var(--accent); color: #fff; }

/* Hero */
.hero {
  padding: 110px 0 90px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(600px 300px at 50% -10%, rgba(79,124,255,0.22), transparent 70%),
    radial-gradient(500px 260px at 80% 20%, rgba(0,212,179,0.14), transparent 70%);
  pointer-events: none;
}
.hero h1 {
  font-size: clamp(2.2rem, 6vw, 3.8rem);
  line-height: 1.05;
  letter-spacing: -0.03em;
  margin: 0 0 18px;
  background: linear-gradient(180deg, #fff, #b9c4e0);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero p.lead {
  font-size: clamp(1.05rem, 2.4vw, 1.35rem);
  color: var(--muted);
  max-width: 640px;
  margin: 0 auto 34px;
}
.cta-row { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 26px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.98rem;
  border: 1px solid transparent;
  cursor: pointer;
  transition: 0.18s;
}
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: #3f6cf0; text-decoration: none; transform: translateY(-1px); }
.btn-ghost { background: transparent; border-color: var(--border); color: var(--text); }
.btn-ghost:hover { border-color: var(--accent); text-decoration: none; }

/* Sections */
section { padding: 72px 0; }
section.alt { background: var(--bg-elev); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.section-title {
  font-size: clamp(1.6rem, 4vw, 2.3rem);
  letter-spacing: -0.02em;
  margin: 0 0 12px;
}
.section-sub { color: var(--muted); max-width: 620px; margin: 0 0 40px; }

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
}
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 26px;
}
.card h3 { margin: 0 0 8px; font-size: 1.15rem; }
.card p { margin: 0; color: var(--muted); font-size: 0.96rem; }
.card .ic {
  width: 42px; height: 42px;
  display: grid; place-items: center;
  border-radius: 10px;
  background: rgba(79,124,255,0.14);
  margin-bottom: 16px;
  font-size: 1.3rem;
}

/* Disclosure table */
.legal-intro {
  background: var(--surface);
  border: 1px solid var(--border);
  border-left: 4px solid var(--accent);
  border-radius: var(--radius);
  padding: 22px 24px;
  margin-bottom: 36px;
  color: var(--muted);
}
.disclosure {
  width: 100%;
  border-collapse: collapse;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}
.disclosure th, .disclosure td {
  text-align: left;
  padding: 16px 22px;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}
.disclosure tr:last-child th, .disclosure tr:last-child td { border-bottom: 0; }
.disclosure th {
  width: 42%;
  color: var(--muted);
  font-weight: 600;
  font-size: 0.95rem;
}
.disclosure td { font-weight: 500; }
.placeholder {
  display: inline-block;
  background: rgba(255, 196, 0, 0.12);
  color: #ffce4d;
  border: 1px dashed rgba(255, 196, 0, 0.45);
  border-radius: 6px;
  padding: 1px 8px;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.86rem;
}
.partner-block { margin: 0; padding: 0; list-style: none; }
.partner-block li {
  padding: 8px 0;
  border-bottom: 1px dashed var(--border);
}
.partner-block li:last-child { border-bottom: 0; }
.partner-block .pname { font-weight: 600; }
.partner-block .pmeta { color: var(--muted); font-size: 0.9rem; display: block; }

/* Footer */
footer.site {
  border-top: 1px solid var(--border);
  padding: 40px 0;
  color: var(--muted);
  font-size: 0.9rem;
}
footer.site .wrap {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}
footer.site a { color: var(--muted); }
footer.site a:hover { color: var(--text); }

/* Lang visibility — block by default */
[data-lang-gr], [data-lang-en] { display: none; }
html[data-lang="gr"] [data-lang-gr] { display: block; }
html[data-lang="en"] [data-lang-en] { display: block; }
/* inline variants */
html[data-lang="gr"] [data-lang-gr].i,
html[data-lang="en"] [data-lang-en].i { display: inline; }

.page-head { padding: 64px 0 20px; }
.page-head h1 { font-size: clamp(1.9rem, 5vw, 2.8rem); letter-spacing: -0.02em; margin: 0 0 10px; }
.muted { color: var(--muted); }
.updated { font-size: 0.85rem; color: var(--muted); margin-top: 28px; }

@media (max-width: 640px) {
  nav.site .nav-links { display: none; }
  .disclosure th { width: 50%; }
}