* { margin: 0; padding: 0; box-sizing: border-box; }

body {
  font-family: 'Segoe UI', Tahoma, Arial, sans-serif;
  color: #222;
  background: #f7f7f7;
  line-height: 1.7;
}

img { max-width: 100%; height: auto; }

a:focus-visible,
button:focus-visible {
  outline: 3px solid #0e7a95;
  outline-offset: 2px;
}

/* ===== SKIP LINK (προσβασιμότητα) ===== */
.skip-link {
  position: absolute;
  left: -999px;
  top: auto;
  background: #0e7a95;
  color: #fff;
  padding: 10px 18px;
  z-index: 1000;
  border-radius: 0 0 6px 0;
}

.skip-link:focus {
  left: 0;
  top: 0;
}

/* ===== ΚΟΥΜΠΙ ===== */
.btn-primary {
  display: inline-block;
  background: #0e7a95;
  color: #fff;
  padding: 12px 24px;
  border-radius: 6px;
  text-decoration: none;
  font-weight: 600;
  transition: background 0.2s;
}

.btn-primary:hover {
  background: #0b5f74;
  color: #fff;
}

/* ===== HEADER (ΛΕΥΚΟ) ===== */
header {
  background: #ffffff;
  padding: 15px 0;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 2px 8px rgba(0,0,0,0.08);
  border-bottom: 1px solid #eee;
}

.header-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 20px;
  flex-wrap: wrap;
  gap: 15px;
}

header img.logo {
  height: 60px;
  width: auto;
  display: block;
}

nav ul {
  list-style: none;
  display: flex;
  gap: 25px;
  flex-wrap: wrap;
}

nav a {
  color: #1a1a1a;
  text-decoration: none;
  font-weight: 600;
  font-size: 16px;
  padding: 8px 4px;
  border-bottom: 2px solid transparent;
  transition: border-color 0.2s, color 0.2s;
}

nav a:hover, nav a.active {
  color: #0e7a95;
  border-bottom-color: #0e7a95;
}

/* ===== MAIN ===== */
main {
  max-width: 1000px;
  margin: 0 auto;
  padding: 50px 20px;
}

h1 {
  font-size: 30px;
  color: #1a1a1a;
  margin-bottom: 25px;
  border-bottom: 3px solid #0e7a95;
  display: inline-block;
  padding-bottom: 8px;
}

h2 {
  font-size: 22px;
  color: #1a1a1a;
  margin: 30px 0 15px;
}

p {
  margin-bottom: 16px;
  font-size: 17px;
  text-align: justify;
}

.intro p { text-align: justify; }

/* ===== HERO (εικόνα + τίτλος) ===== */
.hero {
  display: flex;
  align-items: center;
  gap: 40px;
  margin-bottom: 40px;
  padding: 20px 0;
}

.hero-image {
  flex: 0 0 320px;
  max-width: 320px;
}

.hero-image img {
  width: 100%;
  height: auto;
  display: block;
  filter: drop-shadow(0 8px 20px rgba(14,122,149,0.25));
}

.hero-text h1 {
  margin-bottom: 12px;
}

.hero-sub {
  font-size: 19px;
  color: #666;
  font-weight: 500;
  text-align: left;
  margin: 0;
}

/* ===== ΚΑΤΑΛΟΓΟΣ ===== */
.flipbook-container {
  width: 100%;
  height: 80vh;
  min-height: 600px;
  border: 1px solid #ddd;
  border-radius: 6px;
  overflow: hidden;
  background: #fff;
}

.flipbook-container iframe {
  width: 100%;
  height: 100%;
  border: 0;
  display: block;
}

/* ===== ΕΠΙΚΟΙΝΩΝΙΑ ===== */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  margin-top: 30px;
}

.contact-card {
  background: #fff;
  padding: 30px;
  border-radius: 8px;
  box-shadow: 0 2px 10px rgba(0,0,0,0.06);
  border-top: 4px solid #0e7a95;
}

.contact-card h2 {
  margin-top: 0;
  color: #1a1a1a;
}

/* Στοιχεία επικοινωνίας — ετικέτα + τιμή στην ίδια γραμμή */
.contact-card p {
  text-align: left;
  margin-bottom: 10px;
}

.contact-card p strong {
  display: inline-block;
  min-width: 90px;
}

.contact-card a {
  color: #1a1a1a;
  text-decoration: none;
}

.contact-card a:hover { color: #0e7a95; }

/* ===== FOOTER (ΤΥΡΚΟΥΑΖ) ===== */
footer {
  background: #0e7a95;
  color: #e8f4f7;
  padding: 45px 20px 20px;
  margin-top: 60px;
}

.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 35px;
}

footer h3 {
  color: #ffffff;
  font-size: 18px;
  margin-bottom: 15px;
}

footer p, footer a {
  color: #f0f8fa;
  font-size: 15px;
  text-decoration: none;
  line-height: 1.9;
}

footer a:hover { color: #ffffff; }

.footer-bottom {
  max-width: 1200px;
  margin: 30px auto 0;
  padding-top: 20px;
  border-top: 1px solid rgba(255,255,255,0.25);
  text-align: center;
  font-size: 13px;
  color: #eef7fa;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 700px) {
  .contact-grid { grid-template-columns: 1fr; }
  h1 { font-size: 24px; }

  header img.logo { height: 45px; }
  nav ul { gap: 15px; }
  nav a { font-size: 14px; }

  .flipbook-container { height: 70vh; min-height: 450px; }

  .hero {
    flex-direction: column;
    text-align: center;
    gap: 20px;
  }
  .hero-image {
    flex: 0 0 auto;
    max-width: 240px;
  }
  .hero-text h1 { font-size: 22px; }
  .hero-sub { text-align: center; font-size: 16px; }
}