/* ==========================================================================
   ΑΚΡΙΒΗΣ ΠΑΛΕΤΑ & GLOBAL CONFIG
   ========================================================================== */
:root {
    --bg-surface: #f9f9f9;           /* Off-white */
    --bg-sand: #f4ece1;              /* Απαλό Sand Beige για το Pebble container */
    --bg-terracotta: #f1eae4;        /* Ήπια Terracotta απόχρωση για το Paros Grid */
    --color-primary: #004581;        /* Aegean Blue */
    --text-main: #1a1c1c;
    --text-muted: #515656;
    
    --font-heading: 'Libre Caslon Text', serif;
    --font-body: 'Plus Jakarta Sans', sans-serif;
}

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

body {
    background-color: var(--bg-surface);
    color: var(--text-main);
    font-family: var(--font-body);
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

.container { width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 24px; }

/* NAVIGATION HEADER */
.main-header {
    position: fixed; top: 0; left: 0; width: 100%; z-index: 1000;
    background: rgba(255, 255, 255, 0.85); backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(0, 0, 0, 0.03);
}
.nav-container { max-width: 1200px; margin: 0 auto; padding: 20px 24px; display: flex; justify-content: space-between; align-items: center; }
.nav-logo { font-family: var(--font-heading); font-size: 18px; font-weight: 700; letter-spacing: 2px; color: var(--color-primary); text-decoration: none; }
.nav-links a { font-size: 14px; font-weight: 500; color: var(--text-muted); text-decoration: none; margin: 0 16px; transition: color 0.3s; }
.nav-links a:hover, .nav-links a.active-link { color: var(--color-primary); }
.nav-action-btn { background-color: var(--color-primary); color: white; text-decoration: none; font-size: 13px; font-weight: 600; text-transform: uppercase; letter-spacing: 1px; padding: 12px 24px; border-radius: 6px; }

/* ==========================================================================
   HEADER IMAGE LOGO STYLES logo img
   ========================================================================== */
/*.nav-logo {
  display: inline-flex;
  align-items: center;
  text-decoration: none;
  cursor: pointer;
}

.nav-logo-img {
  height: 40px; 
  width: auto;  
  display: block;
  transition: opacity 0.3s ease, transform 0.3s ease;
}

.nav-logo:hover .nav-logo-img {
  opacity: 0.85;
  transform: scale(1.02);
}*/

/* Responsive για κινητά */
/*@media (max-width: 768px) {
  .nav-logo-img {
    height: 32px;
  }
}*/


/* Hero CTA Button */
.hero-cta-btn { display: inline-block; background-color: white; color: var(--color-primary); text-decoration: none; font-size: 14px; font-weight: 700; padding: 16px 36px; border-radius: 6px; transition: transform 0.3s, box-shadow 0.3s; }
.hero-cta-btn:hover { transform: translateY(-2px); box-shadow: 0 10px 25px rgba(0, 69, 129, 0.15); }

/* ==========================================================================
   PREMIUM FOOTER WITH CONTACT US PANEL (NO NEWSLETTER)
   ========================================================================== */
.main-footer { background-color: #f0f0f2; padding: 80px 0 30px 0; border-top: 1px solid #e4e4e6; }
.footer-container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1.5fr; gap: 60px; margin-bottom: 50px; }
.footer-logo { font-family: var(--font-heading); font-size: 20px; color: var(--color-primary); font-weight: 700; display: block; margin-bottom: 16px; text-decoration: none; }
.footer-grid h4 { font-size: 14px; font-weight: 700; text-transform: uppercase; letter-spacing: 1px; margin-bottom: 20px; color: var(--text-main); }
.footer-links ul { list-style: none; }
.footer-links ul li { margin-bottom: 12px; }
.footer-links ul li a { text-decoration: none; color: var(--text-muted); font-size: 14px; transition: color 0.2s; }
.footer-links ul li a:hover { color: var(--color-primary); }

/* Στυλ για το Contact Us Panel */
.footer-contact-info p { font-size: 14px; color: var(--text-muted); margin-bottom: 12px; }
.footer-contact-item { display: flex; align-items: center; gap: 10px; }

.footer-bottom { border-top: 1px solid #e4e4e6; padding-top: 25px; text-align: center; font-size: 13px; color: var(--text-muted); }

/* ==========================================================================
   BURGER MENU (MOBILE NAVIGATION)
   ========================================================================== */
.burger-menu-btn {
    display: none;
    width: 28px;
    height: 24px;
    flex-direction: column;
    justify-content: space-between;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0;
    z-index: 1001;
}

.burger-line {
    width: 100%;
    height: 2px;
    background-color: var(--color-primary);
    transition: all 0.3s cubic-bezier(0.165, 0.84, 0.44, 1);
    transform-origin: center;
}

.burger-menu-btn.active .burger-line-1 {
    transform: rotate(45deg) translate(9px, 9px);
}

.burger-menu-btn.active .burger-line-2 {
    opacity: 0;
}

.burger-menu-btn.active .burger-line-3 {
    transform: rotate(-45deg) translate(7px, -7px);
}

.mobile-nav {
    display: none;
    position: absolute;
    top: 70px;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(0, 0, 0, 0.03);
    flex-direction: column;
    padding: 20px 24px;
    gap: 0;
    z-index: 999;
    text-align: center;
}

.mobile-nav.active {
    display: flex;
}

.mobile-nav-link {
    font-size: 16px;
    font-weight: 500;
    color: var(--text-muted);
    text-decoration: none;
    padding: 16px 0;
    border-bottom: 1px solid rgba(0, 0, 0, 0.04);
    transition: color 0.3s;
}

.mobile-nav-link:hover,
.mobile-nav-link.active-link {
    color: var(--color-primary);
}

.mobile-nav-link:last-of-type {
    border-bottom: none;
}

.mobile-nav-btn {
    background-color: var(--color-primary);
    color: white;
    text-decoration: none;
    font-size: 13px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    padding: 12px 24px;
    border-radius: 6px;
    text-align: center;
    margin-top: 16px;
    transition: background-color 0.3s;
}

.mobile-nav-btn:hover {
    background-color: #003360;
}

@media (max-width: 768px) {
    .footer-grid { grid-template-columns: 1fr; gap: 40px; }
    .nav-links { display: none; }
    .nav-action-btn { display: none; }
    .burger-menu-btn { display: flex; }
}