/* Reset and base styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #fafafa;
}

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
    height: auto;
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header and navigation */
header {
    background-color: #2c3e50;
    color: white;
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 1000;
}

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

header h1 {
    font-size: 1.8rem;
    color: #ecf0f1;
}

header nav ul {
    display: flex;
    gap: 2rem;
}

header nav ul li a {
    color: #ecf0f1;
    font-weight: 500;
    transition: color 0.3s;
}

header nav ul li a:hover,
header nav ul li a.active {
    color: #3498db;
}

/* Hero section */
.hero {
    background: linear-gradient(135deg, #1e3c72 0%, #2a5298 60%, #1e3c72 100%);
    background-size: cover;
    background-position: center;
    color: white;
    text-align: center;
    padding: 6rem 0;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: "";
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 80%;
    height: 80%;
    background-image: url('../images/BEnergy-logo.png');
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
    opacity: 0.05;
    pointer-events: none;
}

.hero h2 {
    font-size: 2.8rem;
    margin-bottom: 1rem;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.5);
}

.hero p {
    font-size: 1.4rem;
    margin-bottom: 2rem;
    text-shadow: 1px 1px 2px rgba(0,0,0,0.3);
}

.btn {
    display: inline-block;
    background-color: #3498db;
    color: white;
    padding: 0.8rem 2rem;
    border-radius: 4px;
    font-weight: 600;
    transition: background-color 0.3s, transform 0.2s;
    border: none;
    cursor: pointer;
}

.btn:hover {
    background-color: #2980b9;
    transform: translateY(-2px);
}

.btn:active {
    transform: translateY(0);
}

/* Features section */
.features {
    padding: 4rem 0;
    background: linear-gradient(135deg, #eef7ff 0%, #ffffff 100%);
}

.features h3 {
    text-align: center;
    margin-bottom: 2.5rem;
    color: #2c3e50;
    position: relative;
    padding-bottom: 0.75rem;
}

.features h3::after {
    content: "";
    position: absolute;
    left: 50%;
    bottom: 0;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, #3498db, #2ecc71);
    border-radius: 2px;
}

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

.feature-item {
    background-color: white;
    padding: 2rem;
    border-radius: 8px;
    border-top: 4px solid #3498db;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
    text-align: center;
    transition: transform 0.3s, box-shadow 0.3s, border-color 0.3s;
}

.feature-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 6px 12px rgba(0,0,0,0.15);
    border-top-color: #2980b9;
}

.feature-item h4 {
    color: #1e3c72;
    margin-bottom: 1rem;
    font-size: 1.2rem;
}

.feature-item a {
    color: #2980b9;
    text-decoration: underline;
}

.feature-item a:hover {
    color: #1f6fa3;
}

/* About section */
.about {
    padding: 4rem 0;
}

.about h3 {
    text-align: center;
    margin-bottom: 2rem;
    color: #2c3e50;
}

.about p {
    margin-bottom: 1.5rem;
    line-height: 1.7;
}

/* Contact section */
.contact {
    padding: 4rem 0;
    background-color: #ecf0f1;
    text-align: center;
}

.contact h3 {
    margin-bottom: 1.5rem;
    color: #2c3e50;
}

.contact p {
    margin-bottom: 2rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* Page header */
.page-header {
    background-color: #3498db;
    color: white;
    text-align: center;
    padding: 3rem 0;
}

.page-header h2 {
    font-size: 2.2rem;
}

/* About content */
.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: start;
    padding: 4rem 0;
}

.about-text h3 {
    color: #2c3e50;
    margin-bottom: 1rem;
}

.about-text p {
    margin-bottom: 1rem;
}

.about-text ul {
    margin-left: 2rem;
    margin-bottom: 1.5rem;
}

.about-text li {
    margin-bottom: 0.5rem;
}

.about-image {
    background-color: #ecf0f1;
    border-radius: 8px;
    padding: 2rem;
    text-align: center;
    color: #7f8c8d;
    font-style: italic;
}

/* Services section */
.services {
    padding: 4rem 0;
}

.services h2 {
    text-align: center;
    margin-bottom: 3rem;
    color: #2c3e50;
}

.service-item {
    background-color: white;
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
    padding: 2rem;
    margin-bottom: 2rem;
    transition: transform 0.3s, box-shadow 0.3s;
}

.service-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 6px 12px rgba(0,0,0,0.15);
}

.service-item h3 {
    color: #2c3e50;
    margin-bottom: 1rem;
}

.service-item ul {
    margin-left: 1.5rem;
    margin-bottom: 1.5rem;
}

.service-item li {
    margin-bottom: 0.5rem;
}

/* Services Tiers section */
.services-tiers {
    padding: 4rem 0;
}

.tier-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.service-tier {
    background-color: white;
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
    padding: 2rem;
    transition: transform 0.3s, box-shadow 0.3s;
}

.service-tier:hover {
    transform: translateY(-5px);
    box-shadow: 0 6px 12px rgba(0,0,0,0.15);
}

.service-tier h3 {
    color: #2c3e50;
    margin-bottom: 1rem;
}

.service-tier p {
    margin-bottom: 1rem;
}

.service-tier ul {
    margin-left: 1.5rem;
    margin-bottom: 1.5rem;
}

.service-tier li {
    margin-bottom: 0.5rem;
}

.service-tier .btn {
    display: block;
    width: 100%;
    text-align: center;
    margin-top: 1.5rem;
}

/* Advisory Areas Section */
.advisory-areas {
    padding: 4rem 0;
    background-color: #ecf0f1;
}

.advisory-areas h2 {
    text-align: center;
    margin-bottom: 2rem;
    color: #2c3e50;
}

.advisory-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
}

.advisory-item {
    background-color: white;
    border-radius: 8px;
    padding: 1.5rem;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.advisory-item h4 {
    color: #2c3e50;
    margin-bottom: 1rem;
}

/* SEAI Information Section */
.seai-info {
    padding: 4rem 0;
}

.seai-info h2 {
    text-align: center;
    margin-bottom: 2rem;
    color: #2c3e50;
}

.info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.info-item {
    background-color: white;
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
    padding: 2rem;
}

.info-item h3 {
    color: #2c3e50;
    margin-bottom: 1.5rem;
}

.info-item p {
    margin-bottom: 1rem;
}

.seai-info table {
    width: 100%;
    border-collapse: collapse;
    margin: 1.5rem 0;
}

.seai-info th,
.seai-info td {
    padding: 0.75rem;
    text-align: left;
    border-bottom: 1px solid #ddd;
}

.seai-info th {
    background-color: #f2f2f2;
    font-weight: 600;
}

.seai-info tr:hover {
    background-color: #f5f5f5;
}

/* Moved grants table (SEAI Grants page) */
.grant-table {
    width: 100%;
    border-collapse: collapse;
    margin: 1.5rem 0;
}

.grant-table th,
.grant-table td {
    padding: 0.75rem;
    text-align: left;
    border-bottom: 1px solid #ddd;
}

.grant-table th {
    background-color: #f2f2f2;
    font-weight: 600;
}

.grant-table tr:hover {
    background-color: #f5f5f5;
}

/* Content detail pages (BERs Explained, SEAI Grants): paragraph spacing + visible SEAI links */
.ber-info p,
.ber-info h3,
.ber-info h4,
.ber-info ul,
.seai-grants p,
.seai-grants h3,
.seai-grants h4,
.seai-grants ul {
    margin-bottom: 1rem;
}

.ber-info li,
.seai-grants li {
    margin-bottom: 0.5rem;
}

.seai-link {
    color: #2980b9;
    text-decoration: underline;
}

.seai-link:hover {
    color: #1f6fa3;
}

/* Why Do You Need a BER Cert? Section */
.why-ber-cert {
    padding: 4rem 0;
    background-color: #f8f9fa;
}

.why-ber-cert h2 {
    text-align: center;
    margin-bottom: 2rem;
    color: #2c3e50;
}

.why-ber-cert p {
    text-align: center;
    margin-bottom: 2rem;
    color: #555;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.ber-reasons-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
}

.ber-reason {
    background-color: white;
    border-radius: 8px;
    padding: 1.5rem;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    transition: transform 0.2s, box-shadow 0.2s;
}

.ber-reason:hover {
    transform: translateY(-3px);
    box-shadow: 0 4px 8px rgba(0,0,0,0.15);
}

.ber-reason h3 {
    color: #2c3e50;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.ber-reason h3::before {
    content: "•";
    color: #3498db;
    font-size: 1.5rem;
}

.ber-reason p {
    color: #555;
    line-height: 1.6;
}

/* CTA section */
.cta {
    background: linear-gradient(rgba(0, 0, 0, 0.7), rgba(0, 0, 0, 0.7)), url('https://via.placeholder.com/1920x1080');
    background-size: cover;
    background-position: center;
    color: white;
    text-align: center;
    padding: 5rem 0;
    position: relative;
    overflow: hidden;
}

.cta::before {
    content: "";
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 80%;
    height: 80%;
    background-image: url('../images/BEnergy-logo.png');
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
    opacity: 0.05;
    pointer-events: none;
}

.cta h2 {
    font-size: 2.4rem;
    margin-bottom: 1.5rem;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.5);
}

.cta p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    text-shadow: 1px 1px 2px rgba(0,0,0,0.3);
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

/* Contact page styles */
.contact-info {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: start;
    padding: 4rem 0;
}

.contact-details h3,
.contact-form h3 {
    color: #2c3e50;
    margin-bottom: 1.5rem;
}

.contact-details ul {
    margin-left: 1.5rem;
    margin-bottom: 1.5rem;
}

.contact-details li {
    margin-bottom: 0.8rem;
}

.contact-form {
    background-color: white;
    padding: 2rem;
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
}

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

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: #2c3e50;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.8rem;
    border: 1px solid #bdc3c7;
    border-radius: 4px;
    font-family: inherit;
    font-size: 1rem;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #3498db;
    box-shadow: 0 0 0 2px rgba(52, 152, 219, 0.2);
}

.form-message {
    margin-top: 1rem;
    padding: 0.8rem;
    border-radius: 4px;
    display: none;
}

.form-message.success {
    background-color: #d5f5e3;
    color: #27ae60;
    border: 1px solid #27ae60;
    display: block;
}

.form-message.error {
    background-color: #fadbd8;
    color: #e74c3c;
    border: 1px solid #e74c3c;
    display: block;
}

/* Map section */
.map {
    padding: 4rem 0;
    background-color: #ecf0f1;
}

.map h3 {
    text-align: center;
    margin-bottom: 2rem;
    color: #2c3e50;
}

.map-placeholder {
    background-color: #bdc3c7;
    height: 300px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #7f8c8d;
    font-style: italic;
}

/* Footer */
footer {
    background-color: #2c3e50;
    color: #ecf0f1;
    text-align: center;
    padding: 2rem 0;
}

footer p {
    margin-bottom: 1rem;
}

.social-links {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
}

.social-links a {
    color: #ecf0f1;
    font-weight: 500;
    transition: color 0.3s;
}

.social-links a:hover {
    color: #3498db;
}

/* Responsive design */
@media (max-width: 768px) {
    header .container {
        flex-direction: column;
        gap: 1.5rem;
    }
    
    header nav ul {
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .hero h2 {
        font-size: 2.2rem;
    }
    
    .hero p {
        font-size: 1.2rem;
    }
    
    .about-content,
    .contact-info {
        grid-template-columns: 1fr;
    }
    
    .about-image,
    .map-placeholder {
        margin-top: 2rem;
    }
    
    .tier-grid,
    .advisory-grid,
    .info-grid,
    .ber-reasons-grid {
        grid-template-columns: 1fr;
    }
    
    .services-tiers,
    .advisory-areas,
    .seai-info,
    .why-ber-cert {
        padding: 2rem 0;
    }
}

@media (max-width: 480px) {
    .hero h2 {
        font-size: 1.8rem;
    }
    
    .hero p {
        font-size: 1rem;
    }
    
    .cta h2 {
        font-size: 1.8rem;
    }
    
    .feature-grid {
        grid-template-columns: 1fr;
    }
    
    .service-tier,
    .advisory-item,
    .info-item,
    .ber-reason {
        padding: 1.5rem;
    }
    
    .services-tiers h2,
    .advisory-areas h2,
    .seai-info h2,
    .why-ber-cert h2,
    .page-header h2,
    .about h3,
    .contact h3,
    .features h3,
    .services h2,
    .about-content h2,
    .contact-info h2 {
        font-size: 1.5rem;
    }
    
    .cta h2 {
        font-size: 1.8rem;
    }
}
/* Logo styles */
.logo {
    max-height: 7rem;
    height: auto;
    display: inline-block;
    margin-right: 1rem;
    vertical-align: middle;
    filter: drop-shadow(0 2px 6px rgba(0, 0, 0, 0.3));
}