:root {
  --bg: #0b0d12;
  --fg: #f6f7fb;
  --muted: #a8b0bd;
  --brand: #2eaadc;
  --accent: #04c29a;
  --card: #141824;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--fg);
  font: 16px/1.6 system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, sans-serif;
}

.container {
  max-width: 1080px;
  margin: 0 auto;
  padding: 24px;
}

.nav {
  display: flex;
  gap: 18px;
  align-items: center;
  justify-content: space-between;
  padding: 16px 0;
}

.nav a {
  color: var(--fg);
  text-decoration: none;
  opacity: 0.9;
}

.nav a:hover {
  opacity: 1;
}

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

.logo img {
  width: 28px;
  height: 28px;
}

/* ΚΟΥΜΠΙΑ */

.btn {
  display: inline-block;
  padding: 10px 16px;
  border-radius: 10px;
  background: var(--brand);
  color: #02131b;
  text-decoration: none;
  font-weight: 600;
  border: 1px solid #1e7aa1;
}

.btn.alt {
  background: transparent;
  color: var(--fg);
  border: 1px solid #2a3444;
}

/* HERO */

.hero {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 24px;
  align-items: center;
}

.hero video,
.hero img {
  width: 100%;
  border-radius: 16px;
  border: 1px solid #22293a;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.25);
}

.h1 {
  font-size: 40px;
  line-height: 1.15;
  margin: 0 0 8px;
}

.h2 {
  font-size: 28px;
  margin: 18px 0 6px;
}

.lead {
  color: var(--muted);
}

/* GRID / ΚΑΡΤΕΣ */

.grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.card {
  background: var(--card);
  border: 1px solid #1f2533;
  border-radius: 16px;
  padding: 18px;
}

/* Ό,τι είναι μέσα στην κάρτα να είναι πάντα στο fg χρώμα */
.card,
.card:visited,
.card h3,
.card h3 a,
.card p,
.card p a {
  color: var(--fg);
}

footer {
  margin-top: 40px;
  padding: 24px 0;
  color: var(--muted);
  font-size: 14px;
  border-top: 1px solid #1f2533;
}

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

input,
select,
textarea {
  background: #0f1320;
  color: var(--fg);
  border: 1px solid #2a3444;
  border-radius: 10px;
  padding: 10px;
}

label {
  font-weight: 600;
  font-size: 14px;
}

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

.cookie {
  position: fixed;
  inset: auto 16px 16px 16px;
  background: #0f1320;
  border: 1px solid #2a3444;
  border-radius: 12px;
  padding: 12px;
  display: none;
}

.cookie.show {
  display: block;
}

.lang {
  font-size: 14px;
}

/* Γενικό στυλ για links */

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

a:hover {
  color: var(--brand);
  text-decoration: underline;
}

/* Να μην γίνονται μωβ τα links που έχουν ήδη πατηθεί */
a:visited {
  color: var(--fg);
}

/* ===========================
   ΕΝΟΤΗΤΑ ICONS ΠΡΟΪΟΝΤΩΝ
   =========================== */

.product-section {
  margin-top: 3rem;
  margin-bottom: 3rem;
  background: var(--bg);
  text-align: center;
}

.product-section h2 {
  font-size: 2.1rem;
  margin-bottom: 0.6rem;
}

.product-section p {
  max-width: 540px;
  margin: 0.5rem auto 2.2rem;
  color: var(--muted);
}

/* Grid των icons – RESPONSIVE */

.product-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.8rem;
  justify-items: center;
}

/* Tablet */
@media (min-width: 768px) {
  .product-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

/* Desktop: 4+4 χωρίς κενό */
@media (min-width: 1024px) {
  .product-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

/* Κάθε “κουμπί” μενού */
.product-item {
  text-decoration: none;
  color: inherit;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  transition: transform 0.18s ease,
              box-shadow 0.18s ease,
              background-color 0.18s ease,
              border-color 0.18s ease;
  padding: 1.1rem 1rem;
  border-radius: 18px;
  background: #111520;
  border: 1px solid #1f2533;
  min-height: 120px;
}

.product-item:hover {
  transform: translateY(-4px);
  background-color: #161c2a;
  border-color: var(--brand);
  box-shadow: 0 10px 26px rgba(0, 0, 0, 0.45);
}

/* Icon – φωτεινά πάνω στο dark theme */
.product-icon {
  width: 40px;
  height: 40px;
  margin-bottom: 0.75rem;
  opacity: 0.96;
  filter: invert(1) brightness(1.25); /* αν είναι εικόνα (img/svg) σκουρόχρωμη */
}

/* Αν τα icons είναι inline SVG, τα “ασπρίζουμε” κι από εδώ */
.product-item svg {
  width: 32px;
  height: 32px;
  stroke: var(--fg);
  fill: none;
  opacity: 0.95;
}

.product-item svg path,
.product-item svg line,
.product-item svg rect,
.product-item svg circle {
  stroke: var(--fg);
}

.product-item svg path[fill]:not([fill="none"]) {
  fill: var(--fg);
}

/* Label */
.product-label {
  font-size: 0.95rem;
  font-weight: 600;
  text-align: center;
}

/* ===========================
   ΕΝΟΤΗΤΑ ΑΞΙΑΣ - ΓΙΑΤΙ ΕΜΑΣ
   =========================== */

.value-section {
  margin-top: 3rem;
  margin-bottom: 3rem;
}

.value-section h2 {
  font-size: 1.9rem;
  margin-bottom: 0.5rem;
}

.value-section p.value-intro {
  max-width: 620px;
  color: var(--muted);
  margin-bottom: 2rem;
}

.value-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.5rem;
}

.value-item {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.value-icon {
  font-size: 1.8rem;
  margin-bottom: 0.3rem;
}

/* ===========================
   RESPONSIVE
   =========================== */

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

  .grid {
    grid-template-columns: 1fr;
  }

  .product-section {
    margin-top: 2.4rem;
  } 
}