:root {
    --page-bg: #000008;
    --surface: #060815;
    --border: #383655;
    --muted: #c9c9c9;
    --accent-start: #9a65d3;
    --accent-mid: #867ae6;
    --accent-end: #6a87f0;
}

* { box-sizing: border-box; }

html, body {
    max-width: 100%;
    overflow-x: hidden;
}

body {
    font-family: Arial, Helvetica;
    background: linear-gradient(30deg, var(--page-bg), #020410, #000106);
    color: white;
    margin: 0;
    padding: 0;
    padding-top: 110px;
    overflow-x: hidden;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

button:hover {
    cursor: pointer;
}

button.symbol {
    cursor: pointer;
    transition: filter 0.3s; 
}

::-webkit-scrollbar {
    width: 10px;
    background-color: #070b1d;
}

::-webkit-scrollbar-thumb {
    border-radius: 100px;
    background-color: #414a75;
}

::-webkit-scrollbar-thumb:hover {
  background-color: #16204e;
}

.nav-bar {
  position: fixed; 
  top: 0;
  left: 0;
  width: 100%; 
  z-index: 9999; 
  display: flex;
  align-items: center;
  background: linear-gradient(90deg, #090b18, #181d31, #090b16);
  padding: 15px 20px;
  box-sizing: border-box; 
}

.nav-menu {
  display: flex;
  align-items: center;
  justify-content: center;
  list-style: none;
  padding: 0;
  margin: 0;
  gap: 5px;
}

.nav-bar li {
  margin: 0 8px;
  font-size: 20px;
}

.nav-bar li a {
  color: white;
  display: flex;
  align-items: center;
  transition: 0.2s;
}

.nav-bar li a:hover {
  color: #91abce;
}

.nav-bar img {
  height: 60px;
}

button {
  width: 155px;
  padding: 10px;
  background: #f4f4f4;
  color: white;
  border: none;
  border-radius: 5px;
  cursor: pointer;
  font-size: 15px;
  font-weight: bold;
  transition: 0.5s;
}

button:hover {
  opacity: 10s;
  transform: scale(1.05);
}

h1 {
    text-align: center;
    color: white;
}

.logo {
    height: 200px;
}

footer {
  position: static;
  width: 100%;
  padding: 60px 20px;
  background: #0b0b0f;
  color: #e5e5e5;
  text-align: center;
  margin-top: auto;
  flex-shrink: 0;
}

.box {
    min-width: 0;
    padding: 24px 20px;
    background-color: var(--surface);
    border: 3px solid var(--border);
    border-radius: 8px;
    transition: transform 0.3s ease, border-color 0.3s ease;
}

.box:hover { transform: translateY(-5px); border-color: #756eb2; }
.box h2 { margin: 0; font-size: clamp(1.15rem, 2.6vw, 1.5rem); }
.box p { margin: 12px 0 0; color: var(--muted); line-height: 1.45; }
.box li {margin-top: 10px; list-style: none;}

a {
  text-decoration: none;
  color: rgb(77, 130, 254);
}

.boxes {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
  margin: 36px auto;
}
.fullscreenButton {
  padding: 10px 20px;
  font-size: 16px;
  cursor: pointer;
  background-color: #4CAF50;
  color: white;
  border: none;
  border-radius: 5px;
  display: block;
  margin-left: 55px;
  margin-bottom: 15px;
}
.fullscreenButton a {
  text-decoration: none;
  color: white;  
  font-weight: bold
}
.service {
  background: #19234a;
  border-radius: 10px;
  padding: 20px;
  margin-bottom: 15px;
  cursor: pointer;
  box-shadow: 0 2px 6px rgba(0,0,0,0.1);
  transition: background 0.3s;
}

.service:hover {
  background: #272f55;
}

.details {
  max-height: 0;
  overflow: hidden;
  opacity: 0;
  transition: max-height 0.5s ease, opacity 0.5s ease;
}

.service.active .details {
  max-height: 200px; /* ή όσο χρειάζεσαι */
  opacity: 1;
}
.Contant {
  margin-left: 435px;
}
.sp_footer {
  width: 100%;
  padding: 60px 20px;
  background: #0b0b0f;
  color: #e5e5e5;
  text-align: center;
  margin-top: auto;
  flex-shrink: 0;
}

.privacy-policy {
  width: min(900px, calc(100% - 40px));
  margin: 36px auto 50px;
  padding: clamp(24px, 5vw, 48px);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
}

.privacy-policy h1 { margin: 0; }
.privacy-policy h2 { margin: 34px 0 10px; font-size: 1.25rem; }
.privacy-policy p { color: var(--muted); line-height: 1.65; }
.privacy-policy .privacy-updated { text-align: center; font-size: .9rem; color: #9a9aaf; }

.terms-consent {
  display: flex;
  align-items: flex-start;
  gap: 9px;
  color: var(--muted);
  font-size: .88rem;
  line-height: 1.4;
}

.terms-consent input { width: auto; margin: 3px 0 0; }

.smart-form-wrapper {
  max-width: 480px;
  margin-top: 25px;
}
.progress-bar {
  height: 4px;
  background: #333;
  border-radius: 2px;
  margin-bottom: 25px;
  overflow: hidden;
}
.progress-fill {
  height: 100%;
  width: 25%;
  background: #4CAF50;
  transition: width 0.3s ease;
}
.smart-form h3 {
  color: #fff;
  font-size: 1.1em;
  margin-bottom: 15px;
}
.step {
  display: none;
  flex-direction: column;
  gap: 10px;
  animation: fadeIn 0.25s ease;
}
.step.active { display: flex; }
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

.chip-group {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.chip {
  padding: 10px 16px;
  border-radius: 20px;
  border: 1px solid #444;
  background: #1a1a1a;
  color: #ddd;
  cursor: pointer;
  font-size: 0.9em;
  transition: all 0.15s ease;
}

.chip:hover {
  border-color: #4CAF50;
}

.chip.selected {
  background: #4CAF50;
  color: #fff;
  border-color: #4CAF50;
}

.smart-form input,
.smart-form textarea {
  padding: 10px 12px;
  border-radius: 6px;
  border: 1px solid #444;
  background: #1a1a1a;
  color: #fff;
  font-family: inherit;
  resize: vertical;
}

.submit-btn {
  padding: 12px;
  border: none;
  border-radius: 6px;
  background: #4CAF50;
  color: #fff;
  font-weight: bold;
  cursor: pointer;
  margin-top: 5px;
}

.submit-btn:hover { background: #3e8e41; }
.back-btn {
  background: none;
  border: none;
  color: #999;
  font-size: 0.85em;
  cursor: pointer;
  align-self: flex-start;
  margin-top: 5px;
}

.back-btn:hover { color: #ccc; }
#form-status {
  color: #ddd;
  font-size: 0.9em;
  margin-top: 10px;
}

.demo-list {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 28px;
  width: min(100% - 40px, 1000px);
  margin: 20px auto 45px;
}

.demo-list > div { text-align: center; }
.demo-list img {
  display: block;
  width: 200px;
  max-width: 100%;
  height: 300px !important;
  margin-left: 0 !important;
  object-fit: cover;
  object-position: top;
}

@media (max-width: 720px) {
  body { padding-top: 18px; }

  .nav-bar {
    position: sticky;
    padding: 10px 12px;
  }

  .nav-menu {
    width: 100%;
    flex-wrap: wrap;
    justify-content: center;
    gap: 4px 10px;
  }

  .nav-bar li { margin: 0; font-size: .95rem; }
  .nav-bar img, .logo { height: 42px; }
  h1 { font-size: clamp(1.55rem, 7vw, 2rem); padding-inline: 16px; }

  .boxes {
    grid-template-columns: 1fr;
    width: min(100% - 32px, 620px);
    margin: 24px auto;
  }

  .box { padding: 20px 16px; }
  .sp_footer, footer { position: static; padding: 30px 16px; }
  .privacy-policy { width: calc(100% - 24px); margin: 18px auto 30px; padding: 22px 18px; }
  .privacy-policy h2 { font-size: 1.1rem; }

  .smart-form-wrapper { width: 100%; }
  .chip-group { gap: 8px; }
  .chip { width: 100%; }
  .submit-btn { width: 100%; }
  .fullscreenButton { width: auto; margin-inline: auto; }

  .demo-list { width: calc(100% - 32px); gap: 34px; }
  .demo-list > div { width: min(100%, 280px); }
  .demo-list img { width: 100%; height: auto !important; }
  .demo-list p { margin-left: 0 !important; }
}