/* bigdrago.gr.com: πάνω μπάρα με κεντρική πλοήγηση σε κάψουλα, οριζόντιο ευρετήριο ενοτήτων, στήλη 1040 px, κάτω μπάρα καρτελών στο κινητό. Πρόθεμα gk-.
   Γραφίτης ως φόντο από τις οθόνες της εφαρμογής, μωβ από τα κουμπιά Register και Log in, πράσινο από το εικονίδιο της εφαρμογής iOS και το δώρο.
   Γραμματοσειρές: Advent Pro και Roboto Flex, και οι δύο με ελληνικούς χαρακτήρες. */
:root {
  --gk-bg: #131117; --gk-deep: #0c0b0f; --gk-card: #1c1922; --gk-card-2: #25212d; --gk-line: #2f2a39; --gk-line-2: #433b52;
  --gk-ink: #f3f0f7; --gk-mut: #c4bdd0; --gk-faint: #958ca5;
  --gk-vi: #c46bff; --gk-vi-l: #d595ff; --gk-vi-bg: rgba(196, 107, 255, 0.12); --gk-gr: #5fe38c; --gk-gr-bg: rgba(95, 227, 140, 0.1);
  --gk-cta-ink: #1b0a29; --gk-w: 1040px;
  --font-display: 'Advent Pro', 'Arial Narrow', Arial, sans-serif;
  --font-body: 'Roboto Flex', 'Segoe UI', Arial, sans-serif;
}
html { scroll-padding-top: 128px; }
body.gk-site { background: var(--gk-bg); color: var(--gk-ink); font-family: var(--font-body); font-size: 1.02rem; line-height: 1.68; }
.gk-site h1, .gk-site h2, .gk-site h3, .gk-site h5 { font-family: var(--font-display); color: #fff; letter-spacing: 0; text-transform: none; font-weight: 700; }
.gk-site a { color: var(--gk-gr); }
.gk-site p, .gk-site li { max-width: none; }
.gk-in { max-width: var(--gk-w); margin: 0 auto; padding: 0 1.4rem; }

/* Κουμπιά */
.gk-site .btn { font-family: var(--font-display); font-weight: 700; font-size: 1.02rem; border-radius: 12px; padding: 0.6rem 1.2rem; text-decoration: none; letter-spacing: 0.01em; }
.gk-site .btn--primary { background: var(--gk-vi); color: var(--gk-cta-ink); box-shadow: 0 6px 18px rgba(196, 107, 255, 0.28); }
.gk-site .btn--primary:hover { background: var(--gk-vi-l); color: var(--gk-cta-ink); }
.gk-site .btn--ghost { background: transparent; color: var(--gk-gr); border: 1.5px solid rgba(95, 227, 140, 0.55); }
.gk-site .btn--ghost:hover { background: var(--gk-gr-bg); color: var(--gk-ink); }
.gk-site .btn--line { background: transparent; color: var(--gk-ink); border: 1.5px solid var(--gk-line-2); }
.gk-site .btn--line:hover { border-color: var(--gk-vi); color: var(--gk-vi-l); }

/* Πάνω μπάρα */
.gk-site .site-header.gk-top { position: sticky; top: 0; z-index: 130; background: rgba(19, 17, 23, 0.96); backdrop-filter: blur(8px); border-bottom: 1px solid var(--gk-line); height: auto; }
.gk-top__row { display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 1rem; height: 66px; }
.gk-top__logo img { width: 150px; height: auto; display: block; }
.gk-nav { justify-self: center; display: flex; gap: 0.2rem; background: var(--gk-card); border: 1px solid var(--gk-line); border-radius: 14px; padding: 0.25rem; }
.gk-nav a { color: var(--gk-mut); text-decoration: none; font-family: var(--font-display); font-weight: 600; font-size: 1rem; padding: 0.36rem 0.85rem; border-radius: 10px; white-space: nowrap; }
.gk-nav a:hover { color: #fff; background: var(--gk-card-2); }
.gk-nav a.active { color: var(--gk-cta-ink); background: var(--gk-vi); }
.gk-top__act { display: flex; gap: 0.45rem; }
.gk-top__act .btn { padding: 0.45rem 0.95rem; font-size: 0.95rem; }

/* Κάτω μπάρα καρτελών (κινητό) */
.gk-tabs { display: none; }

/* Hero */
.gk-hero { padding: 2rem 0 1.4rem; }
.gk-hero__box { display: grid; grid-template-columns: minmax(0, 1fr) 270px; gap: 2rem; align-items: stretch; background: radial-gradient(120% 140% at 0% 0%, #2a2136 0%, #1a1720 55%, #141218 100%); border: 1px solid var(--gk-line); border-top: 3px solid var(--gk-vi); border-radius: 18px; padding: 2rem 2.2rem; }
.gk-hero__copy { min-width: 0; }
.gk-kicker { display: inline-flex; align-items: center; gap: 0.45rem; color: var(--gk-gr); font-weight: 600; font-size: 0.82rem; letter-spacing: 0.08em; text-transform: uppercase; margin: 0 0 0.7rem; }
.gk-kicker::before { content: ''; width: 8px; height: 8px; border-radius: 50%; background: var(--gk-gr); box-shadow: 0 0 0 4px var(--gk-gr-bg); }
.gk-hero h1 { font-size: clamp(1.7rem, 1.2rem + 1.6vw, 2.5rem); line-height: 1.12; margin: 0 0 0.85rem; }
.gk-hero__lead { color: var(--gk-mut); margin: 0 0 1.25rem; }
.gk-btns { display: flex; flex-wrap: wrap; gap: 0.6rem; }
.gk-hero__facts { margin: 0; display: grid; gap: 0.55rem; align-content: center; }
.gk-hero__facts div { background: rgba(12, 11, 15, 0.6); border: 1px solid var(--gk-line); border-left: 3px solid var(--gk-gr); border-radius: 10px; padding: 0.55rem 0.8rem; }
.gk-hero__facts dt { font-family: var(--font-display); font-weight: 700; color: #fff; font-size: 1.3rem; line-height: 1.2; }
.gk-hero__facts dd { margin: 0; color: var(--gk-faint); font-size: 0.84rem; line-height: 1.35; }
.gk-page-pliromes .gk-hero__box, .gk-page-syndesi .gk-hero__box, .gk-page-prosfores .gk-hero__box { grid-template-columns: 1fr; }

/* Ευρετήριο ενοτήτων */
.gk-index { position: sticky; -webkit-mask-image: linear-gradient(90deg, #000 92%, transparent); mask-image: linear-gradient(90deg, #000 92%, transparent); top: 66px; z-index: 120; background: rgba(12, 11, 15, 0.94); backdrop-filter: blur(8px); border-top: 1px solid var(--gk-line); border-bottom: 1px solid var(--gk-line); }
.gk-index__row { padding-right: 3rem !important; display: flex; gap: 0.4rem; align-items: center; overflow-x: auto; padding-top: 0.55rem; padding-bottom: 0.55rem; scrollbar-width: thin; }
.gk-index__t { flex: 0 0 auto; font-family: var(--font-display); font-weight: 700; color: var(--gk-gr); font-size: 0.9rem; text-transform: uppercase; letter-spacing: 0.06em; margin-right: 0.3rem; }
.gk-index a { flex: 0 0 auto; color: var(--gk-mut); text-decoration: none; font-size: 0.86rem; padding: 0.22rem 0.7rem; border: 1px solid var(--gk-line-2); border-radius: 999px; white-space: nowrap; }
.gk-index a:hover { color: var(--gk-cta-ink); background: var(--gk-gr); border-color: var(--gk-gr); }

/* Ενότητες */
.gk-col { padding-top: 0.6rem; }
.gk-sec { padding: 1.6rem 0 0.8rem; border-bottom: 1px solid var(--gk-line); }
.gk-sec:last-child { border-bottom: 0; }
.gk-head { display: flex; align-items: baseline; gap: 0.75rem; margin-bottom: 0.9rem; }
.gk-num { flex: 0 0 auto; font-family: var(--font-display); font-weight: 700; font-size: 1.5rem; line-height: 1; color: var(--gk-vi); }
.gk-sec h2 { font-size: clamp(1.4rem, 1.15rem + 0.8vw, 1.85rem); line-height: 1.18; margin: 0; }
.gk-split { display: grid; grid-template-columns: minmax(0, 1fr) 290px; gap: 2rem; align-items: start; }
.gk-split--left { grid-template-columns: 290px minmax(0, 1fr); }
.gk-split--left .gk-fig { order: -1; }
.gk-split--right .gk-fig { order: 2; }
.gk-fig { margin: 0; position: sticky; top: 140px; }
.gk-fig img { width: 100%; height: auto; display: block; }
.gk-text { display: flow-root; min-width: 0; }
.gk-text p { color: var(--gk-mut); margin: 0 0 1rem; }
.gk-text p a, .gk-qa__a a, .gk-list a { color: var(--gk-gr); }
.gk-text b { color: #fff; }
.gk-note { background: var(--gk-vi-bg); border-left: 3px solid var(--gk-vi); border-radius: 0 10px 10px 0; padding: 0.7rem 1rem; color: var(--gk-ink) !important; }

/* Πίνακες */
.gk-tbl { margin: 1rem 0 1.3rem; background: var(--gk-card); border: 1px solid var(--gk-line); border-radius: 12px; overflow: hidden; }
.gk-tbl__cap { margin: 0 !important; padding: 0.65rem 1rem; font-family: var(--font-display); font-weight: 700; color: #fff !important; font-size: 1.05rem; border-bottom: 2px solid var(--gk-vi); }
.gk-tbl__scroll { overflow-x: auto; }
.gk-tbl table { width: 100%; border-collapse: collapse; font-size: 0.93rem; }
.gk-tbl th { text-align: left; color: var(--gk-gr); font-weight: 600; font-size: 0.8rem; letter-spacing: 0.05em; text-transform: uppercase; padding: 0.55rem 1rem; border-bottom: 1px solid var(--gk-line); background: var(--gk-card-2); }
.gk-tbl td { padding: 0.55rem 1rem; border-bottom: 1px solid var(--gk-line); color: var(--gk-ink); vertical-align: top; }
.gk-tbl tr:last-child td { border-bottom: 0; }
.gk-tbl td:first-child { font-weight: 600; }
.gk-tbl__note { margin: 0 !important; padding: 0.6rem 1rem; font-size: 0.85rem; color: var(--gk-faint) !important; border-top: 1px solid var(--gk-line); }

/* Λίστες και βήματα */
.gk-site .gk-list, .gk-site .gk-steps { margin-left: 0; padding-left: 0; }
.gk-list { list-style: none; padding: 0; margin: 0 0 1rem; display: grid; gap: 0.5rem; }
.gk-list li { position: relative; padding: 0.15rem 0 0.15rem 1.5rem; color: var(--gk-mut); }
.gk-list li::before { content: ''; position: absolute; left: 0.2rem; top: 0.68rem; width: 0.6rem; height: 2px; background: var(--gk-gr); }
.gk-steps { counter-reset: s; list-style: none; padding: 0; margin: 0.3rem 0 1.2rem; display: grid; gap: 0; border-left: 2px solid var(--gk-line-2); margin-left: 0.85rem !important; }
.gk-steps li { counter-increment: s; position: relative; padding: 0.45rem 0 0.75rem 1.6rem; color: var(--gk-ink); }
.gk-steps li::before { content: counter(s); position: absolute; left: -0.95rem; top: 0.4rem; width: 1.8rem; height: 1.8rem; border-radius: 8px; display: grid; place-items: center; background: var(--gk-vi); color: var(--gk-cta-ink); font-family: var(--font-display); font-weight: 700; font-size: 0.95rem; }

/* FAQ */
.gk-qa__list { display: grid; gap: 0; border-top: 1px solid var(--gk-line); }
.gk-qa { border-bottom: 1px solid var(--gk-line); }
.gk-qa summary { cursor: pointer; padding: 0.8rem 2.4rem 0.8rem 0; font-family: var(--font-display); font-weight: 600; font-size: 1.1rem; color: #fff; list-style: none; position: relative; }
.gk-qa summary::-webkit-details-marker { display: none; }
.gk-qa summary::after { content: ''; position: absolute; right: 0.4rem; top: 1.05rem; width: 0.55rem; height: 0.55rem; border-right: 2px solid var(--gk-gr); border-bottom: 2px solid var(--gk-gr); transform: rotate(45deg); transition: transform 0.15s; }
.gk-qa[open] summary::after { transform: rotate(-135deg); top: 1.3rem; }
.gk-qa__a { padding: 0 0 0.9rem; display: flow-root; }
.gk-qa__a p { color: var(--gk-mut); margin: 0; }

/* Σύνδεσμοι και ζώνη */
.gk-links { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 0.7rem; margin-bottom: 0.8rem; }
.gk-link { display: flex; flex-direction: column; gap: 0.25rem; background: var(--gk-card); border: 1px solid var(--gk-line); border-radius: 12px; padding: 0.95rem 1.05rem; text-decoration: none; }
.gk-link b { font-family: var(--font-display); color: #fff; font-weight: 700; font-size: 1.1rem; }
.gk-link span { color: var(--gk-mut); font-size: 0.9rem; }
.gk-link:hover { border-color: var(--gk-gr); }
.gk-band { padding: 1.4rem 0 2.6rem; }
.gk-band__box { display: flex; align-items: center; justify-content: space-between; gap: 1.5rem; background: linear-gradient(90deg, rgba(196, 107, 255, 0.16), rgba(95, 227, 140, 0.08)); border: 1px solid var(--gk-line-2); border-radius: 16px; padding: 1.3rem 1.6rem; }
.gk-band__t { font-family: var(--font-display); font-weight: 700; color: #fff; font-size: 1.4rem; margin: 0; }
.gk-band__d { color: var(--gk-mut); margin: 0.2rem 0 0; }
.gk-404 { padding: 4rem 0; }
.gk-404 p { color: var(--gk-mut); }

/* Υποσέλιδο */
.gk-site .site-footer.gk-foot { background: var(--gk-deep); border-top: 1px solid var(--gk-line); padding: 0 0 2.2rem; color: var(--gk-mut); margin-top: 0; }
.gk-foot__help { display: flex; align-items: center; gap: 1rem; padding: 1rem 0; border-bottom: 1px solid var(--gk-line); margin-bottom: 1.8rem; }
.gk-foot__help p { margin: 0; font-size: 0.92rem; }
.gk-age { flex: 0 0 auto; width: 3rem; height: 3rem; border-radius: 50%; display: grid; place-items: center; border: 2px solid var(--gk-gr); color: var(--gk-gr); font-family: var(--font-display); font-weight: 700; font-size: 1.05rem; }
.gk-foot__grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr; gap: 2rem; }
.gk-foot__brand img { width: 150px; height: auto; }
.gk-foot__brand p { font-size: 0.9rem; margin: 0.7rem 0; }
.gk-foot h5 { font-size: 1rem; color: var(--gk-vi-l); margin: 0 0 0.6rem; }
.gk-foot ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 0.35rem; }
.gk-foot ul a { color: var(--gk-mut); text-decoration: none; font-size: 0.92rem; }
.gk-foot ul a:hover { color: var(--gk-gr); }
.gk-foot__pay { display: flex; flex-wrap: wrap; gap: 0.4rem; margin: 1.8rem 0 1.2rem; padding-top: 1.2rem; border-top: 1px solid var(--gk-line); }
.gk-foot__pay span { background: var(--gk-card); border: 1px solid var(--gk-line); border-radius: 8px; padding: 0.2rem 0.65rem; font-size: 0.82rem; color: var(--gk-ink); }
.gk-foot__bottom { font-size: 0.84rem; color: var(--gk-faint); display: flex; justify-content: space-between; gap: 1.5rem; }
.gk-foot__bottom p { margin: 0; }
.gk-foot__bottom p:last-child { white-space: nowrap; }
.gk-site .sticky-cta { display: none !important; }

@media (max-width: 980px) {
  .gk-top__act .btn--line { display: none; }
  .gk-nav a { padding: 0.36rem 0.6rem; font-size: 0.95rem; }
}
@media (max-width: 860px) {
  html { scroll-padding-top: 118px; }
  .gk-nav { display: none; }
  .gk-top__row { grid-template-columns: 1fr auto; height: 58px; }
  .gk-top__logo img { width: 132px; }
  .gk-top__act .btn--line { display: inline-flex; }
  .gk-index { top: 58px; }
  .gk-tabs { display: grid; grid-template-columns: repeat(4, 1fr); position: fixed; left: 0; right: 0; bottom: 0; z-index: 140; background: rgba(12, 11, 15, 0.97); border-top: 1px solid var(--gk-line-2); padding: 0.35rem 0.3rem calc(0.35rem + env(safe-area-inset-bottom)); }
  .gk-tabs a { display: flex; flex-direction: column; align-items: center; gap: 0.15rem; text-decoration: none; color: var(--gk-faint); font-size: 0.74rem; font-weight: 500; padding: 0.2rem 0; border-radius: 10px; }
  .gk-tabs svg { width: 22px; height: 22px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
  .gk-tabs a.active { color: var(--gk-vi-l); background: var(--gk-vi-bg); }
  body.gk-site { padding-bottom: 64px; }
  .gk-hero__box { grid-template-columns: 1fr; padding: 1.5rem 1.3rem; }
  .gk-hero__facts { grid-template-columns: 1fr 1fr; }
  .gk-split, .gk-split--left { grid-template-columns: 1fr; gap: 1rem; }
  .gk-split .gk-fig, .gk-split--left .gk-fig { order: 2; position: static; max-width: 270px; margin: 0 auto; }
  .gk-links { grid-template-columns: 1fr; }
  .gk-foot__grid { grid-template-columns: 1fr 1fr; }
  .gk-foot__brand { grid-column: 1 / -1; }
}
@media (max-width: 520px) {
  .gk-in { padding: 0 1rem; }
  .gk-top__act .btn { padding: 0.4rem 0.7rem; font-size: 0.88rem; }
  .gk-top__logo img { width: 116px; }
  .gk-hero { padding-top: 1rem; }
  .gk-hero__box { padding: 1.25rem 1.05rem; border-radius: 14px; }
  .gk-band__box { flex-direction: column; align-items: flex-start; padding: 1.2rem; }
  .gk-foot__bottom { flex-direction: column; gap: 0.5rem; }
  .gk-tbl th, .gk-tbl td { padding: 0.5rem 0.7rem; }
}