:root {
    --primary: #f97316;
    --primary-dark: #ea580c;
    --dark-bg: #0f172a; 
    --blue-accent: #1e3a8a;
    --light-bg: #f8fafc;
    --white: #ffffff;
    --text-main: #334155;
    --text-light: #64748b;
    --border: #e2e8f0;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: 'Open Sans', sans-serif; color: var(--text-main); background-color: var(--light-bg); line-height: 1.6; }
h1, h2, h3, h4 { font-family: 'Montserrat', sans-serif; color: #0f172a; }
.container { width: 90%; max-width: 1200px; margin: 0 auto; }

/* Navbar Links */
.navbar { background-color: var(--white); padding: 15px 0; box-shadow: 0 2px 10px rgba(0,0,0,0.05); position: sticky; top: 0; z-index: 100; }
.nav-container { display: flex; justify-content: space-between; align-items: center; }
.logo-link { display: inline-block; transition: transform 0.2s; }
.logo-link:hover { transform: scale(1.02); }
.nav-logo { height: 60px; width: auto; display: block; }
.nav-contact-top a { color: var(--blue-accent); font-weight: 700; text-decoration: none; font-size: 1.1rem; }

/* Slider & Content Buttons */
.slider-container { position: relative; height: 530px; width: 100%; overflow: hidden; background-color: var(--dark-bg); }
.slider { width: 100%; height: 100%; position: relative; }
.slide { position: absolute; top: 0; left: 0; width: 100%; height: 100%; background-size: cover; background-position: center; opacity: 0; transition: opacity 0.8s ease-in-out; display: flex; align-items: center; z-index: 1; }
.slide.active { opacity: 1; z-index: 2; }
.slide-content { max-width: 700px; margin-left: 10%; color: var(--white); padding: 20px; }
.slide-badge { background: var(--primary); padding: 6px 14px; border-radius: 50px; font-weight: 700; font-size: 0.85rem; text-transform: uppercase; display: inline-block; margin-bottom: 15px; }
.slide-content h2 { font-size: 3.5rem; font-weight: 800; color: var(--white); margin-bottom: 15px; line-height: 1.2; }
.slide-content p { font-size: 1.2rem; color: #e2e8f0; margin-bottom: 25px; }
.slide-btn { padding: 12px 28px; text-decoration: none; display: inline-block; font-size: 0.95rem; }

.slider-btn { position: absolute; top: 50%; transform: translateY(-50%); background: rgba(255,255,255,0.2); border: none; color: var(--white); width: 50px; height: 50px; border-radius: 50%; cursor: pointer; z-index: 10; transition: 0.3s; font-size: 1.2rem; }
.slider-btn:hover { background: var(--primary); }
.prev-btn { left: 20px; }
.next-btn { right: 20px; }

/* Info Bar */
.info-bar { background-color: var(--white); padding: 30px 0; border-bottom: 1px solid var(--border); }
.info-bar-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; }
.info-item { display: flex; align-items: center; gap: 20px; }
.info-item i { font-size: 2.5rem; color: var(--primary); }
.info-item h4 { font-size: 1.1rem; margin-bottom: 2px; }
.info-item p { color: var(--text-light); font-size: 0.95rem; }

/* Camps Grid Layout */
.camps-section { padding: 80px 0; }
.section-header { text-align: center; margin-bottom: 60px; }
.section-header h2 { font-size: 2.5rem; font-weight: 800; margin-bottom: 15px; }
.section-header p { color: var(--text-light); max-width: 800px; margin: 0 auto; font-size: 1.1rem; }
.camps-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; }
.camp-card { background: var(--white); border-radius: 16px; overflow: hidden; box-shadow: 0 10px 30px rgba(0,0,0,0.03); display: flex; flex-direction: column; border: 1px solid var(--border); transition: 0.3s; }
.camp-card:hover { transform: translateY(-5px); box-shadow: 0 20px 40px rgba(0,0,0,0.08); border-color: var(--primary); }
.camp-image { height: 200px; background-size: cover; background-position: center; position: relative; }
.camp-badge { position: absolute; bottom: 15px; left: 15px; background: rgba(15, 23, 42, 0.85); color: var(--white); padding: 4px 12px; border-radius: 4px; font-size: 0.85rem; font-weight: 600; backdrop-filter: blur(5px); }
.camp-info { padding: 25px; flex-grow: 1; display: flex; flex-direction: column; justify-content: space-between; }
.camp-info h3 { font-size: 1.3rem; margin-bottom: 12px; }
.camp-info p { color: var(--text-light); font-size: 0.95rem; margin-bottom: 25px; }
.camp-link { color: var(--primary); font-weight: 700; text-decoration: none; text-transform: uppercase; font-size: 0.9rem; display: flex; align-items: center; gap: 8px; transition: 0.2s; }
.camp-link:hover { color: var(--primary-dark); gap: 12px; }
.design-highlight { grid-column: span 1; }

/* Buttons global layout */
.btn { display: inline-block; border-radius: 8px; font-weight: 600; text-transform: uppercase; cursor: pointer; border: none; transition: 0.3s; text-align: center; }
.btn-primary { background-color: var(--primary); color: var(--white); }
.btn-primary:hover { background-color: var(--primary-dark); transform: translateY(-2px); }
.btn-block { width: 100%; padding: 14px; font-size: 1rem; }

/* Contact Forms UI Layout */
.contact-section { background-color: var(--white); padding: 80px 0; border-top: 1px solid var(--border); }
.contact-grid { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 50px; align-items: start; }
.contact-details h2 { font-size: 2.2rem; margin-bottom: 15px; }
.contact-details p { color: var(--text-light); margin-bottom: 30px; }
.contact-item-list { display: flex; flex-direction: column; gap: 15px; }
.c-info { font-size: 1.1rem; font-weight: 600; display: flex; align-items: center; gap: 15px; }
.c-info i { color: var(--primary); width: 20px; text-align: center; }
.c-info a { color: var(--text-main); text-decoration: none; }
.contact-map iframe { box-shadow: 0 5px 15px rgba(0,0,0,0.05); }

.form-container { background: var(--light-bg); padding: 40px; border-radius: 16px; border: 1px solid var(--border); box-shadow: 0 10px 25px rgba(0,0,0,0.02); }
.form-group { margin-bottom: 20px; }
.form-group label { display: block; margin-bottom: 8px; color: var(--text-main); font-weight: 600; font-size: 0.9rem; }
.form-group input, .form-group select { width: 100%; padding: 14px; border: 1px solid var(--border); border-radius: 8px; background: var(--white); font-size: 1rem; font-family: inherit; }
.form-group input:focus, .form-group select:focus { outline: none; border-color: var(--primary); }

/* Central Footer Architecture */
footer { background-color: var(--dark-bg); color: #cbd5e1; padding: 50px 0; border-top: 1px solid #1e293b; }
.footer-content { display: flex; flex-direction: column; align-items: center; gap: 20px; text-align: center; }
.footer-logo-link { display: inline-block; transition: opacity 0.2s; }
.footer-logo-link:hover { opacity: 0.8; }
.footer-logo { height: 55px; width: auto; display: block; filter: brightness(1); }
.footer-text-area p { font-size: 0.9rem; margin-bottom: 4px; color: #94a3b8; }

/* Responsive Grid Engine */
@media (max-width: 1024px) {
    .camps-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
    .info-bar-grid, .camps-grid, .contact-grid { grid-template-columns: 1fr; text-align: center; }
    .info-item { flex-direction: column; }
    .slide-content h2 { font-size: 2.2rem; }
    .slider-container { height: 420px; }
    .slide-content { margin-left: 5%; text-align: center; }
    .contact-item-list { align-items: center; }
    .logo-container, .nav-container { flex-direction: column; gap: 15px; }
}

/* --- Checkboxes Layout για τη Φόρμα --- */
.checkbox-group {
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 15px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    text-align: left; /* Σιγουρεύει τη στοίχιση αριστερά στα κινητά */
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    color: var(--text-main);
    transition: color 0.2s;
}

.checkbox-label:hover {
    color: var(--primary);
}

.checkbox-label input[type="checkbox"] {
    width: 20px;  /* Μεγαλύτερο μέγεθος για να πατιέται εύκολα */
    height: 20px;
    accent-color: var(--primary); /* Δίνει το πορτοκαλί χρώμα της σχολής στο τσεκάρισμα */
    cursor: pointer;
}

.share-buttons {
    display: flex;
    gap: 10px;
    align-items: center;
}

.share-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    text-decoration: none;
    color: #fff;
    transition: transform 0.2s, background-color 0.2s;
}

.share-btn:hover {
    transform: translateY(-2px);
    color: #fff; /* Διατήρηση λευκού χρώματος στο hover */
}

.fb-share {
    background-color: #1877f2;
}
.fb-share:hover {
    background-color: #145dbf;
}

.ig-link {
    background: linear-gradient(45deg, #f09433 0%, #e6683c 25%, #dc2743 50%, #cc2366 75%, #bc1888 100%);
}
.ig-link:hover {
    opacity: 0.9;
}

/* Για να δείχνει όμορφο και στα κινητά */
@media (max-width: 768px) {
    .share-buttons {
        justify-content: center;
        margin-top: 10px;
    }
}