/* Base Styles */
:root {
    --primary-color: #3a5a78;
    --secondary-color: #f8a631;
    --accent-color: #e74c3c;
    --light-color: #f8f9fa;
    --dark-color: #343a40;
    --text-color: #333;
    --body-font: 'Montserrat', sans-serif;
    --heading-font: 'Playfair Display', serif;
    --transition: all 0.3s ease;
    --box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--body-font);
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-color);
}

/* Apply Greek font when lang="el" */
html[lang="el"] body {
    font-family: var(--body-font); /* Use Montserrat for Greek body */
}

html[lang="el"] h1, html[lang="el"] h2, html[lang="el"] h3, html[lang="el"] h4, html[lang="el"] h5, html[lang="el"] h6 {
    font-family: var(--heading-font); /* Use Playfair Display for Greek headings */
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--heading-font);
    margin-bottom: 1rem;
    line-height: 1.2;
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
    display: block;
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}

.btn {
    display: inline-block;
    background-color: var(--secondary-color);
    color: white;
    padding: 12px 24px;
    border-radius: 4px;
    font-weight: 600;
    text-transform: uppercase;
    font-size: 14px;
    letter-spacing: 1px;
    transition: var(--transition);
    border: none;
    cursor: pointer;
}

.btn:hover {
    background-color: #e69018;
    transform: translateY(-3px);
    box-shadow: var(--box-shadow);
}

.section {
    padding: 5rem 0;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    position: relative;
    color: var(--primary-color);
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background-color: var(--secondary-color);
}

/* Header */
#header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: transparent;
    padding: 1rem 0;
    transition: var(--transition);
}

#header.scrolled {
    background-color: white;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    padding: 0.7rem 0;
}

#header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo h1 {
    color: white;
    font-size: 1.8rem;
    margin: 0;
    transition: var(--transition);
}

#header.scrolled .logo h1 {
    color: var(--primary-color);
}

.nav-menu {
    display: flex;
    align-items: center;
}

.nav-menu li {
    margin-left: 2rem;
}

.nav-menu li a {
    color: white;
    font-weight: 500;
    position: relative;
}

#header.scrolled .nav-menu li a {
    color: var(--dark-color);
}

.nav-menu li a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    background-color: var(--secondary-color);
    bottom: -5px;
    left: 0;
    transition: var(--transition);
}

.nav-menu li a:hover::after,
.nav-menu li a.active::after {
    width: 100%;
}

.btn-contact {
    background-color: var(--secondary-color);
    padding: 8px 16px;
    border-radius: 4px;
    color: white !important;
}

.btn-contact:hover {
    background-color: #e69018;
}

.menu-toggle {
    display: none;
    font-size: 1.5rem;
    color: white;
    cursor: pointer;
}

#header.scrolled .menu-toggle {
    color: var(--dark-color);
}

/* Hero Section */
#hero {
    height: 100vh;
    background: linear-gradient(rgba(0, 0, 0, 0.6), rgba(0, 0, 0, 0.6)), url('../images/hero-banner-3.jpg') center/cover no-repeat;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: white;
    padding: 0 15px;
}

.hero-content {
    max-width: 800px;
}

.hero-content h2 {
    font-size: 3.8rem;
    margin-bottom: 1rem;
    text-shadow: 2px 2px 8px rgba(0,0,0,0.7);
    font-weight: 700;
}

.hero-content p {
    font-size: 1.3rem;
    margin-bottom: 2rem;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
    text-shadow: 1px 1px 5px rgba(0,0,0,0.7);
}

/* Services Section */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.service-card {
    background-color: white;
    padding: 2rem;
    border-radius: 8px;
    text-align: center;
    box-shadow: var(--box-shadow);
    transition: var(--transition);
}

.service-card:hover {
    transform: translateY(-10px);
}

.service-card i {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.service-card h3 {
    margin-bottom: 1rem;
    color: var(--dark-color);
}

/* Portfolio Section */
.portfolio-filter {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 2rem;
}

.filter-btn {
    background: none;
    border: none;
    padding: 8px 16px;
    margin: 0 5px 10px;
    cursor: pointer;
    font-weight: 500;
    transition: var(--transition);
    color: var(--dark-color);
}

.filter-btn.active, .filter-btn:hover {
    background-color: var(--secondary-color);
    color: white;
    border-radius: 20px;
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.5rem;
}

.portfolio-item {
    position: relative;
    overflow: hidden;
    border-radius: 8px;
    height: 280px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.portfolio-item:hover {
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
    transform: translateY(-5px);
}

.portfolio-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.portfolio-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(58, 90, 120, 0.8);
    color: white;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    opacity: 0;
    transition: var(--transition);
    padding: 1rem;
    text-align: center;
    transform: translateY(20px);
}

.portfolio-item:hover .portfolio-overlay {
    opacity: 1;
    transform: translateY(0);
}

.portfolio-item:hover img {
    transform: scale(1.1);
}

.portfolio-overlay h3 {
    margin-bottom: 0.5rem;
    font-size: 1.4rem;
    text-shadow: 1px 1px 3px rgba(0,0,0,0.3);
}

.portfolio-overlay p {
    font-size: 0.95rem;
    max-width: 80%;
    margin: 0 auto;
}

/* Testimonials Section */
#testimonials {
    background-color: #f9f9f9;
}

.testimonials-slider {
    max-width: 800px;
    margin: 0 auto;
    overflow: hidden;
    position: relative;
    display: flex;
    transition: transform 0.5s ease;
}

.testimonial {
    text-align: center;
    padding: 2rem;
    flex: 0 0 100%;
}

.testimonial-content {
    background-color: white;
    padding: 2rem;
    border-radius: 8px;
    box-shadow: var(--box-shadow);
    margin-bottom: 1.5rem;
    position: relative;
}

.testimonial-content::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    border-left: 10px solid transparent;
    border-right: 10px solid transparent;
    border-top: 10px solid white;
}

.testimonial-content p {
    font-style: italic;
    font-size: 1.1rem;
}

.testimonial-author h4 {
    color: var(--primary-color);
    margin-bottom: 0.2rem;
}

.testimonial-dots {
    display: flex;
    justify-content: center;
    margin-top: 2rem;
}

.dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background-color: #ccc;
    margin: 0 5px;
    cursor: pointer;
    transition: var(--transition);
}

.dot.active {
    background-color: var(--secondary-color);
}

/* Contact Section */
.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 3rem;
}

.contact-info p {
    margin-bottom: 2rem;
    font-size: 1.1rem;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    margin-bottom: 1.5rem;
}

.contact-item i {
    font-size: 1.2rem;
    color: var(--secondary-color);
    margin-right: 1rem;
    margin-top: 5px;
}

.social-links {
    display: flex;
    gap: 1rem;
    margin-top: 2rem;
}

.social-links a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background-color: var(--primary-color);
    color: white;
    border-radius: 50%;
}

.social-links a:hover {
    background-color: var(--secondary-color);
    transform: translateY(-3px);
}

.contact-form {
    background-color: white;
    padding: 2rem;
    border-radius: 8px;
    box-shadow: var(--box-shadow);
}

.contact-form h3 {
    margin-bottom: 1.5rem;
    text-align: center;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-family: var(--body-font);
    font-size: 1rem;
}

.form-group textarea {
    height: 150px;
    resize: vertical;
}

.btn-submit {
    width: 100%;
}

/* Form Validation and Response Styles */
.form-group input.error,
.form-group select.error,
.form-group textarea.error {
    border-color: var(--accent-color);
    box-shadow: 0 0 5px rgba(231, 76, 60, 0.3);
}

.error-message {
    color: var(--accent-color);
    font-size: 0.9rem;
    margin-top: 0.5rem;
    display: block;
}

.form-response-message {
    padding: 1.2rem 1.5rem;
    border-radius: 8px;
    margin-bottom: 1.5rem;
    font-weight: 500;
    text-align: center;
    font-size: 1rem;
    line-height: 1.4;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    animation: slideInFromTop 0.5s ease-out;
    position: relative;
    overflow: hidden;
}

.form-response-message::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--secondary-color), var(--primary-color));
}

.form-response-message.success {
    background: linear-gradient(135deg, #d4edda 0%, #e8f5e8 100%);
    color: #155724;
    border: 1px solid #c3e6cb;
}

.form-response-message.success::before {
    background: linear-gradient(90deg, #28a745, #20c997);
}

.form-response-message.error {
    background: linear-gradient(135deg, #f8d7da 0%, #fde8e8 100%);
    color: #721c24;
    border: 1px solid #f5c6cb;
}

.form-response-message.error::before {
    background: linear-gradient(90deg, #dc3545, #e74c3c);
}

@keyframes slideInFromTop {
    0% {
        opacity: 0;
        transform: translateY(-20px);
    }
    100% {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideOutToTop {
    0% {
        opacity: 1;
        transform: translateY(0);
    }
    100% {
        opacity: 0;
        transform: translateY(-20px);
    }
}

.btn-submit:disabled {
    background-color: #ccc;
    cursor: not-allowed;
    transform: none;
}

.btn-submit:disabled:hover {
    background-color: #ccc;
    transform: none;
    box-shadow: none;
}

/* Footer */
footer {
    background-color: var(--dark-color);
    color: white;
    padding: 3rem 0 1.5rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-logo h3 {
    margin-bottom: 1rem;
}

.footer-links ul {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.5rem;
}

.footer-links a:hover {
    color: var(--secondary-color);
}

.copyright {
    text-align: center;
    padding-top: 1.5rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    font-size: 0.9rem;
}

/* Language Switcher */
.lang-switcher {
    margin-left: 1.5rem;
}

.language-selector {
    display: flex;
    align-items: center;
    background-color: rgba(58, 90, 120, 0.8);
    border-radius: 30px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
    overflow: hidden;
    position: relative;
    padding: 0;
    height: 36px; /* Set fixed height */
}

.language-btn {
    background: rgba(70, 70, 70, 0.5);
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0;
    transition: all 0.3s ease;
    position: relative;
    width: 40px; /* Make buttons slightly wider */
    height: 36px;
    outline: none; /* Remove outline on focus */
}

.language-btn:first-child {
    border-radius: 30px 0 0 30px;
}

.language-btn:last-child {
    border-radius: 0 30px 30px 0;
}

.language-btn.active {
    background-color: var(--secondary-color);
}

.language-btn:hover:not(.active) {
    opacity: 0.8;
}

.flag-icon {
    width: 24px; /* Adjust as needed, or use font-size for <i> elements */
    height: 18px; /* Adjust as needed, or use line-height */
    display: inline-block;
    font-size: 18px; /* Example: if using <i> tags, this controls size */
    line-height: 18px; /* Match with font-size for better alignment */
}

/* Responsive adjustments for flag icons if using font icons */
@media (max-width: 768px) {
    .nav-menu .lang-switcher {
        margin-top: 15px;
        margin-left: 0;
    }
    
    .language-selector {
        justify-content: center;
        width: 90px; /* Reduced width to make buttons look better */
        margin: 0 auto;
    }
    
    .language-btn {
        flex: 1;
        justify-content: center;
    }
    
    /* Ensure flags are visible in mobile view */
    .flag-icon {
        font-size: 16px; /* Adjust for smaller screens */
        line-height: 16px; /* Adjust for smaller screens */
    }
}

@media (max-width: 992px) {
    .section-title {
        font-size: 2.2rem;
    }

    .hero-content h2 {
        font-size: 3rem;
    }
}

@media (max-width: 768px) {
    .menu-toggle {
        display: block;
    }

    .nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        background-color: white;
        flex-direction: column;
        padding: 1.5rem 0;
        box-shadow: 0 5px 10px rgba(0, 0, 0, 0.1);
        transition: var(--transition);
    }

    .nav-menu.active {
        left: 0;
    }

    .nav-menu li {
        margin: 0.7rem 0;
    }

    .nav-menu li a {
        color: var(--dark-color) !important;
    }

    .hero-content h2 {
        font-size: 2.5rem;
    }

    .service-card {
        padding: 1.5rem;
    }
}

@media (max-width: 576px) {
    .section {
        padding: 3rem 0;
    }

    .section-title {
        font-size: 1.8rem;
        margin-bottom: 2rem;
    }

    .hero-content h2 {
        font-size: 2rem;
    }

    .portfolio-filter {
        flex-direction: column;
        gap: 0.5rem;
        align-items: center;
    }
    
    .portfolio-item {
        height: 200px;
    }
}

/* Honeypot field - hidden from users but visible to bots */
.honeypot {
    position: absolute !important;
    left: -9999px !important;
    top: -9999px !important;
    visibility: hidden !important;
    opacity: 0 !important;
    height: 0 !important;
    width: 0 !important;
    overflow: hidden !important;
}