/* =========================================================
   1️⃣ Reset & Βασικές ρυθμίσεις
   ========================================================= */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --header-height: 72px;      /* αρχικό */
  --header-min-height: 62px;  /* μετά το scroll */
}

html {
  scroll-behavior: smooth;
  max-width: 100%;
  overflow-x: hidden;
}

body {
  font-family: "Poppins", sans-serif;
  color: #333;
  background-color: #fff;
  line-height: 1.6;
  margin: 0;
  padding: 0;
  max-width: 100%;
  overflow-x: hidden !important;
}

/* =========================================================
   2️⃣ Header & Navigation
   ========================================================= */

/* Navbar αρχικά διάφανο */
header {
  position: fixed;
  top: 0;
  width: 100%;
  height: var(--header-height);
  line-height: var(--header-height);
  padding: 0.5rem 0;
  background: transparent;
  transition: all 0.4s cubic-bezier(0.23, 1, 0.32, 1);
  z-index: 1000;
}

/* Όταν κάνεις scroll */
header.scrolled {
  height: var(--header-min-height);
  line-height: var(--header-min-height);
  background: #ffffff;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.15);
  padding: 0.5rem 0;
}

.navbar {
  height: 100%;
  display: flex;
  justify-content: space-between; /* logo αριστερά, links δεξιά */
  align-items: center;
  max-width: 1200px;
  margin: auto;
  padding: 1rem 2rem;
}

.logo {
  font-size: 1.2rem;
  font-weight: 700;
  color: #ffffff;
}

/* Logo όταν κάνουμε scroll */
header.scrolled .logo {
  color: #0b3954;
}

.nav-links {
  list-style: none;
  display: flex;
  gap: 1.5rem; /* απόσταση μεταξύ των links */
}

.nav-links a {
  text-decoration: none;
  color: #ffffff;
  font-weight: 500;
  font-size: 0.95rem;
  transition: font-size 0.25s, color 0.25s;
}

/* Links όταν κάνουμε scroll */
header.scrolled .nav-links a {
  position: relative;
  font-size: 0.9rem;
  color: #0b3954;
}

header.scrolled .nav-links a::after {
  content: "";
  position: absolute;
  bottom: -3px;
  left: 0;
  width: 0%;
  height: 2px;
  background: #0b3954;
  transition: width 0.3s ease;
}

header.scrolled .nav-links a:hover::after {
  width: 100%;
}

.nav-links a:hover {
  color: #0b3954;
}

header.scrolled .nav-links a:hover {
  color: #072f47; /* λίγο πιο σκούρο μπλε */
}

/* =========================================================
   3️⃣ Hero section
   ========================================================= */

.hero {
  width: 100%;
  max-width: 100%;
  height: 100vh;
  margin: 0;
  padding: 0;
  background: url("../images/truck.jpg") center center / cover no-repeat;
  background-attachment: fixed; /* Parallax στα desktop */
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  position: relative;
  overflow: hidden; /* αποτρέπει άσπρες άκρες σε μικρές οθόνες */
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to bottom,
    rgba(0, 0, 0, 0.42),
    rgba(0, 0, 0, 0.58)
  );
}

.hero-content {
  position: relative;
  z-index: 1;
  color: #ffffff;
  max-width: 920px;
  padding: 1.2rem 1.4rem;
  text-align: center;
}

.hero h1 {
  font-size: clamp(28px, 4.6vw, 54px);
  line-height: 1.15;
  letter-spacing: -0.02em;
  font-weight: 700;
  margin-bottom: 0.8rem;
  color: #ffffff;
  text-shadow:
    2px 2px 6px rgba(0, 0, 0, 0.4),
    -2px -2px 6px rgba(0, 0, 0, 0.3);
}

.hero .subhead {
  font-size: clamp(14px, 1.35vw, 18px);
  line-height: 1.7;
  font-weight: 400;
  color: rgba(255, 255, 255, 0.95);
  margin: 0 auto 1.6rem auto;
  text-wrap: balance;
  text-shadow: 0 1px 6px rgba(0, 0, 0, 0.35);
}

.hero .accent {
  color: #ffeb3b;
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.4);
}

.hero p {
  font-size: 1.2rem;
  margin-bottom: 2rem;
}

/* Κουμπί */
.btn {
  display: inline-block;
  background: #0b3954;
  color: #ffffff;
  padding: 0.9rem 1.6rem;
  border-radius: 50px;
  text-decoration: none;
  font-weight: 600;
  border: 1px solid rgba(255, 255, 255, 0.2);
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.25);
  transition: background 0.3s, transform 0.3s;
}

.btn:hover {
  background: #092c41;
  transform: scale(1.05);
}

/* =========================================================
   4️⃣ Γενικά sections
   ========================================================= */

section {
  scroll-margin-top: 120px;
}

.section {
  padding: 100px 20px;
  max-width: 1200px;
  margin: auto;
  opacity: 0;                 /* για τα scroll animations */
  transition: all 0.8s ease-out;
}

/* Η Αρχική (hero) να πιάνει 100% πλάτος */
.hero.section {
  max-width: 100%;
  padding: 0;
  margin: 0;
}

.section h2 {
  text-align: center;
  font-size: 2rem;
  margin-bottom: 1rem;
  color: #0b3954;
}

/* =========================================================
   5️⃣ Σχετικά με εμάς (About)
   ========================================================= */

/* Section με class "section" ΚΑΙ "about-section" */
.section.about-section {
  width: 100%;
  max-width: 100%;
  margin: 0;
  padding: 120px clamp(16px, 6vw, 80px);
  background: #f7f9fc;
  position: relative;
}

/* Επάνω block: αριστερά κείμενο, δεξιά μεγάλη φωτο */
.about-hero-row {
  display: grid;
  grid-template-columns: minmax(0, 1.7fr) minmax(260px, 1.3fr);
  gap: clamp(1.5rem, 4vw, 3rem);
  align-items: center;
  margin-bottom: 3rem;
}

.about-hero-text h2 {
  font-size: clamp(2rem, 3vw, 2.6rem);
  margin-bottom: 0.6rem;
  color: #0b3954;
  text-align: left;
}

.about-kicker {
  font-size: 0.95rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: #888888;
  margin-bottom: 1.4rem;
}

.about-hero-text p {
  font-size: 1rem;
  color: #444444;
  margin-bottom: 0.8rem;
}

.about-points {
  list-style: none;
  margin-top: 1.2rem;
}

.about-points li {
  position: relative;
  padding-left: 1.4rem;
  margin-bottom: 0.4rem;
  font-size: 0.96rem;
}

.about-points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.5rem;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #0b3954;
}

.about-hero-image img {
  width: 100%;
  border-radius: 18px;
  box-shadow: 0 18px 45px rgba(0, 0, 0, 0.18);
  object-fit: cover;
}

/* Δίστηλο layout: αριστερά stats, δεξιά χάρτης */
.about-stats-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr);
  gap: clamp(1.8rem, 4vw, 3rem);
  align-items: stretch;
  margin-top: 2.5rem;
  margin-bottom: 3rem;
}

/* Αριστερή στήλη – τα 4 κουτάκια */
.about-stats-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}

.stat-card {
  background: #f5f8fb;
  border-radius: 16px;
  padding: 1rem 1.1rem;
  box-shadow: 0 8px 22px rgba(0, 0, 0, 0.06);
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  transition:
    transform 0.25s ease,
    box-shadow 0.25s ease,
    background 0.25s ease;
}

.stat-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 14px 28px rgba(0, 0, 0, 0.12);
  background: #ffffff;
}

.stat-number {
  font-size: 1.6rem;
  font-weight: 700;
  color: #0b3954;
}

.stat-label {
  font-size: 0.75rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: #7a8a99;
}

.stat-desc {
  font-size: 0.82rem;
  color: #555555;
}

/* Δεξιά στήλη – κάρτα χάρτη */
.about-map-card {
  border-radius: 20px;
  overflow: hidden;
  box-shadow: 0 12px 35px rgba(0, 0, 0, 0.16);
  position: relative;
  background: none;
}

.about-map-card img {
  width: 100%;
  height: auto;
  display: block;
}

.about-map-caption {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  padding: 1rem 1.4rem;
  background: linear-gradient(
    to top,
    rgba(0, 0, 0, 0.55) 0%,
    rgba(0, 0, 0, 0) 100%
  );
  color: #ffffff;
}

.about-map-caption h3 {
  margin-bottom: 0.4rem;
  font-size: 1.05rem;
}

.about-map-caption p {
  font-size: 0.9rem;
  line-height: 1.6;
  color: rgba(255, 255, 255, 0.92);
}

/* Gallery με 2 φωτογραφίες κάτω */
.about-gallery {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.5rem;
}

.gallery-card {
  position: relative;
  border-radius: 18px;
  overflow: hidden;
  box-shadow: 0 14px 32px rgba(0, 0, 0, 0.18);
  transform: translateY(0);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.gallery-card img {
  width: 100%;
  height: 260px;
  object-fit: cover;
  display: block;
}

.gallery-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to top,
    rgba(0, 0, 0, 0.7),
    rgba(0, 0, 0, 0.05)
  );
  color: #ffffff;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 1.2rem 1.4rem;
}

.gallery-overlay h3 {
  margin-bottom: 0.3rem;
  font-size: 1.05rem;
}

.gallery-overlay p {
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.9);
}

.gallery-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.25);
}

/* =========================================================
   6️⃣ Επικοινωνία
   ========================================================= */

.contact-section h2 {
  margin-bottom: 2rem;
}

.contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 1.2fr);
  gap: clamp(1.8rem, 4vw, 3rem);
  align-items: stretch;
}

/* Αριστερή στήλη */
.contact-info {
  display: flex;
  flex-direction: column;
  gap: 1.4rem;
}

.contact-intro {
  font-size: 0.98rem;
  color: #555555;
}

.contact-item {
  display: flex;
  gap: 0.9rem;
  align-items: flex-start;
}

.contact-badge {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: #0b3954;
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  flex-shrink: 0;
}

.contact-item h3 {
  font-size: 1rem;
  margin-bottom: 0.1rem;
  color: #0b3954;
}

.contact-item p {
  font-size: 0.95rem;
  color: #444444;
}

/* Δεξιά στήλη – κάρτα χάρτη */
.contact-map-card {
  border-radius: 18px;
  overflow: hidden;
  box-shadow: 0 14px 32px rgba(0, 0, 0, 0.16);
  background: #e3edf5;
  height: 100%;
}

.contact-map-card iframe {
  width: 100%;
  height: 100%;
  min-height: 280px;
  display: block;
}

/* =========================================================
   7️⃣ ΓΕΜΗ
   ========================================================= */

.gemi-section {
  max-width: 1200px;
  margin: 0 auto;
  padding-top: 120px;
  padding-bottom: 120px;
}

.gemi-section h2 {
  text-align: left;
}

.gemi-intro {
  margin-bottom: 1.5rem;
  color: #555555;
  font-size: 0.96rem;
}

.gemi-wrapper {
  display: flex;
  flex-direction: column;
  gap: 1.8rem;
}

/* Κάρτες */
.gemi-card {
  background: #ffffff;
  border-radius: 18px;
  padding: 1.6rem 1.8rem;
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.06);
  border: 1px solid #e3edf5;
}

.gemi-card h3 {
  font-size: 1.05rem;
  margin-bottom: 1rem;
  color: #0b3954;
}

/* Πίνακες */
.gemi-table {
  min-width: 600px; /* έτσι δεν σπάει η μορφή του πίνακα */
}

.table-responsive {
  width: 100%;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.table-responsive::-webkit-scrollbar {
  height: 6px;
}

.table-responsive::-webkit-scrollbar-thumb {
  background: #c7d4e0;
  border-radius: 10px;
}

.gemi-table th,
.gemi-table td {
  padding: 0.55rem 0.65rem;
  border-bottom: 1px solid #edf1f5;
  vertical-align: top;
}

.gemi-table th {
  width: 32%;
  text-align: left;
  font-weight: 600;
  font-size: 0.9rem;
  color: #444444;
  background: #f7f9fc;
}

.gemi-table td {
  color: #333333;
}

/* Πίνακες με κεφαλίδες (εταίροι / ΚΑΔ) */
.gemi-table-partners thead th,
.gemi-table-activities thead th {
  background: #0b3954;
  color: #ffffff;
  font-size: 0.9rem;
}

.gemi-table-partners tbody td,
.gemi-table-activities tbody td {
  background: #ffffff;
}

.gemi-table-partners tbody tr:nth-child(even),
.gemi-table-activities tbody tr:nth-child(even) {
  background: #f7f9fc;
}

.gemi-note {
  margin-top: 0.8rem;
  font-size: 0.84rem;
  color: #777777;
}

/* =========================================================
   8️⃣ Scroll Animations
   ========================================================= */

/* Fade Up */
.fade-up {
  opacity: 0;
  transform: translateY(140px);
  transition:
    transform 1.6s cubic-bezier(0.16, 0.84, 0.44, 1),
    opacity 1.4s ease;
}

.fade-up.show {
  opacity: 1;
  transform: translateY(0);
}

/* Fade Down */
.fade-down {
  opacity: 0;
  transform: translateY(-140px);
  transition:
    transform 1.6s cubic-bezier(0.16, 0.84, 0.44, 1),
    opacity 1.4s ease;
}

.fade-down.show {
  opacity: 1;
  transform: translateY(0);
}

/* From Left */
.fade-left {
  opacity: 0;
  transform: translateX(-140px);
  transition:
    transform 1.7s cubic-bezier(0.16, 0.84, 0.44, 1),
    opacity 1.4s ease;
}

.fade-left.show {
  opacity: 1;
  transform: translateX(0);
}

/* From Right */
.fade-right {
  opacity: 0;
  transform: translateX(140px);
  transition:
    transform 1.7s cubic-bezier(0.16, 0.84, 0.44, 1),
    opacity 1.4s ease;
}

.fade-right.show {
  opacity: 1;
  transform: translateX(0);
}

/* =========================================================
   9️⃣ Mobile Menu / Hamburger
   ========================================================= */

.mobile-menu-btn {
  display: none;
  font-size: 2rem;
  cursor: pointer;
  color: #ffffff;
}

/* Όταν γίνει scroll αλλάζει χρώμα */
header.scrolled .mobile-menu-btn {
  color: #0b3954;
}

/* Slide-in menu */
.mobile-menu {
  position: fixed;
  top: 0;
  right: -100%;
  width: 75%;
  height: 100vh;
  background: rgba(50, 50, 50, 0.45); /* διάφανο γκρι */
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  color: #ffffff;
  padding: 1.6rem;
  z-index: 2000;
  display: flex;
  flex-direction: column;
  box-shadow: -4px 0 18px rgba(0, 0, 0, 0.25);
  transition: right 0.35s ease;
}

.mobile-menu.open {
  right: 0;
}

.mobile-menu-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 1.3rem;
  font-weight: 600;
  margin-bottom: 1.7rem;
}

.mobile-menu-header button {
  background: none;
  border: none;
  color: #ffffff;
  font-size: 2rem;
  cursor: pointer;
}

.mobile-menu-links {
  display: flex;
  flex-direction: column;
  gap: 1.4rem;
}

.mobile-menu-links a {
  color: #ffffff;
  text-decoration: none;
  font-size: 1.1rem;
  padding-bottom: 0.8rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.2);
  transition: opacity 0.2s ease;
}

.mobile-menu-links a:hover {
  opacity: 0.7;
}

/* =========================================================
   🔟 Footer
   ========================================================= */

.footer {
  width: 100%;
  background: #0b3954;
  padding: 1.2rem 0;
  margin-top: 80px; /* απόσταση από το GEMI ώστε να μην κολλάει */
}

.footer-content {
  max-width: 1200px;
  margin: 0 auto;
  text-align: center;
  font-size: 0.95rem;
  color: #ffffff;
  letter-spacing: 0.5px;
}

/* =========================================================
   1️⃣1️⃣ Media Queries (Responsiveness)
   ========================================================= */

/* Hero & section σε tablets */
@media (max-width: 768px) {
  .hero {
    background-attachment: scroll; /* απενεργοποιεί το parallax στα κινητά */
  }

  .hero-content {
    padding: 0.8rem 1rem;
  }

  .hero .subhead {
    line-height: 1.6;
  }

  .section.about-section {
    padding: 90px clamp(16px, 6vw, 40px);
  }

  .about-hero-text h2 {
    text-align: center;
  }

  .gemi-section {
    padding-top: 90px;
    padding-bottom: 90px;
  }

  .gemi-card {
    padding: 1.2rem 1.3rem;
  }

  .gemi-table th,
  .gemi-table td {
    padding: 0.45rem 0.45rem;
    font-size: 0.88rem;
  }

  /* Mobile navigation: κρύβουμε τα desktop links */
  .nav-links {
    display: none;
  }

  .mobile-menu-btn {
    display: block;
  }
}

/* Hero & section σε μικρές συσκευές */
@media (max-width: 480px) {
  .hero {
    background-size: cover;
    background-position: center;
    background-attachment: scroll !important;
    height: 85vh;
  }

  .hero-content {
    padding: 0 10px;
    width: 100%;
  }

  .hero h1 {
    font-size: 1.6rem;
    line-height: 1.2;
  }

  .subhead {
    font-size: 0.9rem;
  }

  .section {
    padding: 70px 14px;
    max-width: 100% !important;
  }
}

/* About σε μεσαία breakpoints */
@media (max-width: 992px) {
  .about-hero-row {
    grid-template-columns: 1fr;
  }

  .about-stats-layout {
    grid-template-columns: 1fr;
  }

  .about-map-card img {
    height: 220px;
  }

  .about-hero-image img {
    width: 100% !important;
    height: auto !important;
  }
}

/* Contact */
@media (max-width: 900px) {
  .contact-grid {
    grid-template-columns: 1fr;
  }

  .contact-map-card {
    height: 280px;
  }
}