:root {
    --bg-color: #f4f8fa;
    --header-bg: #e2e8f0; 
    --text-color: #1a1a1a;
    --text-muted: #4a5568;
    --accent-color: #0066cc; 
    --accent-hover: #004499;
    --card-bg: #ffffff;
    --border-color: #cbd5e1;
    --font-stack: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    --font-serif: Georgia, "Times New Roman", serif;
}

html {
    -webkit-text-size-adjust: 100%;
    scroll-behavior: smooth;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: var(--font-stack); color: var(--text-color); background-color: var(--bg-color); line-height: 1.6; padding-bottom: env(safe-area-inset-bottom); }
.container { width: 90%; max-width: 1100px; margin: 0 auto; padding: 0 20px; }

/* ΜΠΑΡΑ ΑΣΦΑΛΕΙΑΣ ΣΤΗΝ KΟΡΥΦΗ */
.privacy-notice-bar { background-color: #1e293b; color: #f8fafc; font-size: 0.88rem; padding: 10px 0; text-align: center; border-bottom: 1px solid #334155; }
.privacy-notice-bar p { margin: 0; font-weight: 400; letter-spacing: 0.2px; }
.privacy-notice-bar strong { color: #38bdf8; }

/* Header Layout */
header { background-color: var(--header-bg); border-bottom: 1px solid var(--border-color); position: sticky; top: 0; z-index: 100; padding-top: env(safe-area-inset-top); }
header .header-container-box { display: flex; justify-content: space-between; align-items: center; padding: 20px; max-width: 1100px; margin: 0 auto; width: 90%; }

.logo-link { text-decoration: none; display: inline-block; }
.logo { font-family: var(--font-serif); font-size: 1.4rem; font-weight: 800; letter-spacing: -0.2px; color: #000000; }

/* Desktop Menu Navigation */
nav { display: flex; align-items: center; }
nav a { text-decoration: none; color: var(--text-color); font-weight: 600; margin-left: 20px; transition: color 0.2s ease; font-size: 1rem; white-space: nowrap; }
nav a:hover { color: var(--accent-color); }

/* Hero Section */
.hero-section { padding: 60px 0; background-color: var(--header-bg); border-bottom: 1px solid var(--border-color); }
.hero-container { display: flex; align-items: center; justify-content: space-between; gap: 40px; }
.hero-text { flex: 1; text-align: left; }
.hero-section h1 { font-size: 1.45rem; font-weight: 800; text-transform: uppercase; color: var(--accent-color); letter-spacing: 0.8px; line-height: 1.4; margin-bottom: 20px; }
.hero-lead { font-size: 1.15rem; color: var(--text-muted); max-width: 600px; margin-bottom: 40px; }

/* ΦΩΤΟΓΡΑΦΙΑ HERO */
.hero-image-side { flex: 1; display: flex; justify-content: flex-end; }
.hero-image-side img { 
    width: 100%;
    max-width: 230px; 
    height: auto; 
    object-fit: contain; 
    border: none !important; 
    box-shadow: none !important; 
    background: transparent !important; 
    border-radius: 0 !important;
    display: block;
}

/* Expandable CV UI */
.cv-summary { font-size: 1.2rem; color: var(--text-color); font-weight: 400; line-height: 1.7; margin-bottom: 20px; max-width: 900px; }
.cv-details { display: none; margin-top: 30px; border-top: 1px dashed var(--border-color); padding-top: 20px; text-align: left; }
.cv-block { margin-bottom: 25px; }
.cv-block h3 { font-size: 1.2rem; font-weight: 700; color: var(--text-color); margin-bottom: 8px; }
.cv-block p { font-size: 1.1rem; color: var(--text-muted); line-height: 1.6; }
input, button, select, textarea { -webkit-appearance: none; }
.btn-cv { background: transparent; border: 2px solid var(--accent-color); color: var(--accent-color); padding: 10px 24px; border-radius: 6px; font-weight: 600; cursor: pointer; transition: all 0.2s ease; font-size: 1rem; margin-top: 15px; }
.btn-cv:hover { background: var(--accent-color); color: #fff; }
.btn { display: inline-block; background-color: var(--accent-color); color: #fff; padding: 12px 30px; border-radius: 6px; text-decoration: none; font-weight: 600; transition: background-color 0.2s ease; }
.btn:hover { background-color: var(--accent-hover); }

/* Layout Grid & Κεντραρισμένα Στοιχεία */
section { padding: 100px 0; }
section h2 { font-size: 2.2rem; font-weight: 800; letter-spacing: -0.5px; margin-bottom: 40px; position: relative; text-align: center; }
section h2::after { content: ''; display: block; width: 50px; height: 4px; background-color: var(--accent-color); margin: 10px auto 0 auto; }
.section-lead { font-size: 1.2rem; color: var(--text-muted); max-width: 800px; margin: 0 auto 50px auto; text-align: center; }
.about-section { background-color: var(--header-bg); border-top: 1px solid var(--border-color); border-bottom: 1px solid var(--border-color); text-align: left; }

.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 30px; justify-content: center; }
.card { background: var(--card-bg); padding: 40px 30px; border-radius: 8px; border: 1px solid var(--border-color); transition: transform 0.2s ease, box-shadow 0.2s ease; text-align: left; display: flex; flex-direction: column; justify-content: space-between; }
.card:hover { transform: translateY(-5px); box-shadow: 0 10px 25px rgba(0,0,0,0.05); border-color: var(--accent-color); }

/* 🌟 ΧΡΩΜΑ ΚΑΡΤΕΛΩΝ: Ανοιχτό Navy Blue για ομοιομορφία */
.card h3 { font-size: 1.4rem; font-weight: 700; margin-bottom: 15px; color: #1e3a8a; }
.card p { color: var(--text-muted); font-size: 1rem; flex-grow: 1; margin-bottom: 20px; }

/* Θέσεις Φωτογραφιών στις Παρεμβάσεις */
.news-image-wrapper {
    width: 100%;
    height: 195px;
    overflow: hidden;
    border-radius: 6px;
    margin-bottom: 20px;
    background-color: #cbd5e1;
    border: 1px solid var(--border-color);
}
.news-image-wrapper img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}
.btn-news-link { text-decoration: none; color: var(--accent-color); font-weight: 700; font-size: 0.95rem; display: inline-block; margin-top: 15px; transition: color 0.2s ease; }
.btn-news-link:hover { color: var(--accent-hover); }

/* Contact Section */
.contact-section { text-align: center; background-color: var(--header-bg); border-top: 1px solid var(--border-color); }
.contact-section p { font-size: 1.2rem; max-width: 600px; margin: 0 auto 30px auto; color: var(--text-muted); }
.communication-zone { margin-top: 20px; }
.btn-main-contact { padding: 14px 40px; font-size: 1.1rem; }

/* PREMIUM BLUE NAVY FOOTER */
footer { padding: 40px 0; background-color: #0a192f !important; color: #cbd5e1; border-top: 1px solid #1e3a8a; }
.footer-container { display: flex; justify-content: space-between; align-items: center; width: 90%; max-width: 1100px; margin: 0 auto; }

.footer-left { flex: 1; text-align: left; }
.footer-left p { font-size: 0.95rem; font-weight: 600; color: #ffffff; margin: 0; }

.footer-center { flex: 1; display: flex; flex-direction: column; align-items: center; gap: 8px; text-align: center; }
/* 🌟 ΠΙΟ ΜΙΚΡΟ FOLLOW US ON */
.footer-label { font-size: 0.78rem; font-weight: 700; color: #38bdf8; text-transform: uppercase; letter-spacing: 0.5px; }
.footer-icons { display: flex !important; flex-direction: row !important; gap: 12px; }
.footer-icons a { display: flex; align-items: center; justify-content: center; width: 38px; height: 38px; border-radius: 50%; background-color: #172a45; color: #ffffff; transition: all 0.2s ease; text-decoration: none; }
.footer-icons a:hover { background-color: var(--accent-color); color: #ffffff; transform: translateY(-3px); box-shadow: 0 4px 12px rgba(0, 102, 204, 0.4); }

/* 🌟 ΕΥΘΥΓΡΑΜΜΙΣΗ ΔΕΞΙΑ ΣΤΟ FOOTER */
.footer-right { flex: 1; text-align: right; font-size: 0.88rem; display: flex; flex-direction: column; gap: 4px; color: #cbd5e1; padding-left: 25px; }
.footer-privacy { color: #94a3b8; font-weight: 500; }

/* MOBILE RESPONSIVE */
@media (max-width: 768px) {
    header .header-container-box { flex-direction: column; gap: 15px; padding: 15px 10px; width: 100%; }
    
    nav { display: flex !important; flex-direction: row; width: 100%; overflow-x: auto; -webkit-overflow-scrolling: touch; justify-content: flex-start; padding: 5px 10px; scrollbar-width: none; }
    nav::-webkit-scrollbar { display: none; }
    nav a { margin: 0 10px 0 0 !important; padding: 8px 16px; background-color: rgba(0,0,0,0.04); border-radius: 20px; font-size: 0.9rem; border: 1px solid var(--border-color); }

    .hero-container { flex-direction: column-reverse; text-align: center; gap: 30px; }
    .hero-text { text-align: center; }
    .hero-image-side { justify-content: center; width: 100%; display: flex; }
    .hero-image-side img { width: 100%; max-width: 200px; height: auto; margin: 0 auto; display: block; }
    
    .hero-section h1 { font-size: 1.15rem; margin-bottom: 20px; }
    
    .footer-container { flex-direction: column; text-align: center; gap: 25px; }
    .footer-left, .footer-center, .footer-right { text-align: center; align-items: center; padding-left: 0; }
    .footer-icons { display: flex !important; flex-direction: row !important; justify-content: center; gap: 15px; }
}