:root {
    --primary: #1a2a5e;
    --secondary: #ff5a00;
    --accent: #ffcc00;
    --dark-bg: #111111;
    --light-bg: #f9f9f9;
    --white: #ffffff;
    --text-main: #333333;
    --text-muted: #666666;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: var(--text-main);
    background-color: var(--white);
    overflow-x: hidden;
}

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

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

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

/* Typography */
h1, h2, h3, h4 {
    font-weight: 700;
    line-height: 1.2;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 50px;
    color: var(--primary);
}

.highlight-orange { color: var(--secondary); }
.highlight-blue { color: var(--primary); }

/* Buttons */
.btn {
    display: inline-block;
    padding: 12px 30px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    border-radius: 4px;
    cursor: pointer;
}

.btn-orange {
    background: var(--secondary);
    color: var(--white);
}

.btn-orange:hover {
    background: #e65100;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(255, 90, 0, 0.3);
}

/* Header & Nav */
header {
    position: absolute;
    width: 100%;
    z-index: 1000;
    padding: 20px 0;
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo img {
    height: 180px;
}

.nav-links {
    display: flex;
    list-style: none;
}

.nav-links li {
    margin-left: 30px;
}

.nav-links li a {
    color: var(--white);
    font-size: 0.9rem;
    font-weight: 600;
    text-transform: uppercase;
}

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

/* Hero */
.hero {
    height: 100vh;
    min-height: 700px;
    background: linear-gradient(rgba(0,0,0,0.5), rgba(0,0,0,0.5)), url('../images/hero-bg.jpg') center/cover;
    display: flex;
    align-items: center;
    color: var(--white);
    position: relative;
    padding-top: 100px;
}

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

.hero h2 {
    color: var(--accent);
    text-transform: uppercase;
    font-size: 1.5rem;
    margin-bottom: 20px;
}

.hero h1 {
    font-size: 3.5rem;
    margin-bottom: 30px;
}

/* Hero Boxes */
.hero-boxes {
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translate(-50%, 40%);
    width: 100%;
    max-width: 1100px;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    padding: 0 20px;
}

.hero-box {
    background: var(--white);
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    border-radius: 8px;
    overflow: hidden;
    transition: var(--transition);
}

.hero-box:hover {
    transform: translateY(-10px);
}

.hero-box img {
    height: 180px;
    width: 100%;
    object-fit: cover;
}

.hero-box h3 {
    padding: 20px;
    text-align: center;
    font-size: 1rem;
    text-transform: uppercase;
    color: var(--primary);
}

/* About Section */
.about {
    padding: 200px 0 100px;
    background: var(--white);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: center;
}

.about-content h2 {
    font-size: 2.5rem;
    margin-bottom: 20px;
    color: var(--primary);
}

.about-content p {
    margin-bottom: 20px;
    color: var(--text-muted);
}

.product-list {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    list-style: none;
    margin: 30px 0;
}

.product-list li {
    padding-left: 20px;
    position: relative;
}

.product-list li::before {
    content: "•";
    position: absolute;
    left: 0;
    color: var(--secondary);
    font-weight: bold;
}

/* Energy Services */
.energy-services {
    padding: 100px 0;
    background: var(--light-bg);
}

.service-icons {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
    text-align: center;
    margin-top: 50px;
}

.service-icon-box i {
    font-size: 3rem;
    color: var(--secondary);
    margin-bottom: 20px;
}

/* Latest Project */
.projects {
    padding: 100px 0;
}

.project-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.project-card {
    border-bottom: 5px solid transparent;
    transition: var(--transition);
}

.project-card:hover {
    border-bottom-color: var(--secondary);
}

.project-card img {
    height: 250px;
    width: 100%;
    object-fit: cover;
    border-radius: 4px;
}

.project-card h3 {
    text-align: center;
    padding: 20px 0;
    text-transform: uppercase;
    font-size: 1rem;
    color: var(--primary);
}

/* News Section */
.news {
    padding: 100px 0;
    background: var(--light-bg);
}

.news-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.news-card {
    background: var(--white);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0,0,0,0.05);
    transition: var(--transition);
}

.news-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0,0,0,0.1);
}

.news-card img {
    height: 220px;
    width: 100%;
    object-fit: cover;
}

.news-card-content {
    padding: 30px;
    text-align: left;
}

.news-card-content h4 {
    margin-bottom: 15px;
    font-size: 1.2rem;
}

.news-card-content h4 a {
    color: var(--primary);
    text-decoration: none;
}

.news-card-content h4 a:hover {
    color: var(--secondary);
    text-decoration: underline;
}

.news-card-content p {
    font-size: 0.95rem;
    color: var(--text-muted);
    line-height: 1.5;
}

/* About Page Specifics */
.founder-section {
    margin-bottom: 80px;
}

.founder-header {
    margin-bottom: 30px;
}

.founder-name {
    font-size: 1.75rem;
    color: var(--primary);
    margin-bottom: 15px;
}

.bio-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 40px;
    align-items: start;
}

.bio-text p {
    margin-bottom: 20px;
    color: var(--text-main);
}

.professional-experience {
    margin-top: 40px;
}

.experience-item {
    margin-bottom: 30px;
    padding-left: 20px;
    border-left: 3px solid var(--secondary);
}

.experience-item h4 {
    color: var(--primary);
    margin-bottom: 5px;
}

.experience-company {
    font-weight: 600;
    color: var(--secondary);
    margin-bottom: 10px;
}

.experience-list {
    list-style: disc;
    margin-left: 25px;
    margin-top: 10px;
}

.experience-list li {
    margin-bottom: 8px;
    font-size: 0.95rem;
}

/* Expertise Page Styles */
.intro-section {
    padding: 100px 0 60px;
    text-align: center;
}

.intro-section h2 {
    color: var(--primary);
    font-size: 2rem;
    margin-bottom: 30px;
    text-transform: uppercase;
}

.intro-section p {
    max-width: 900px;
    margin: 0 auto;
    font-size: 1.1rem;
    color: var(--text-main);
}

.expertise-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    padding-bottom: 100px;
}

.expertise-card {
    background: var(--white);
    text-align: center;
    transition: var(--transition);
}

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

.expertise-card img {
    width: 100%;
    height: 250px;
    object-fit: cover;
    border-radius: 8px;
    margin-bottom: 20px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.expertise-card h3 {
    font-size: 1.1rem;
    color: var(--primary);
    text-transform: uppercase;
    margin-bottom: 15px;
}

.expertise-card p {
    font-size: 0.9rem;
    color: var(--text-muted);
    line-height: 1.6;
}

.expertise-card a {
    color: var(--secondary);
    font-weight: 700;
    text-transform: uppercase;
    font-size: 0.85rem;
    display: inline-block;
    margin-top: 15px;
}

.expertise-card a:hover {
    text-decoration: underline;
}

/* Expanded Service Page Styles */
.service-hero {
    height: 50vh;
    min-height: 400px;
    display: flex;
    align-items: center;
    color: var(--white);
    background-size: cover;
    background-position: center;
    position: relative;
}

.service-hero::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0,0,0,0.5);
}

.service-hero .container {
    position: relative;
    z-index: 2;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
    margin: 60px 0;
}

.feature-item {
    padding: 40px;
    background: var(--white);
    border-radius: 8px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.05);
    text-align: center;
    transition: var(--transition);
}

.feature-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}

.feature-icon {
    font-size: 2.5rem;
    color: var(--secondary);
    margin-bottom: 20px;
}

.feature-item h3 {
    margin-bottom: 15px;
    color: var(--primary);
}

.text-content {
    max-width: 900px;
    margin: 0 auto;
    font-size: 1.1rem;
    line-height: 1.8;
}

.text-content h2 {
    color: var(--primary);
    margin: 40px 0 20px;
    font-size: 2rem;
}

.text-content p {
    margin-bottom: 25px;
}

.text-content ul {
    margin: 20px 0 30px 40px;
}

.text-content li {
    margin-bottom: 12px;
}

.education-section {
    margin-top: 30px;
}

.education-item {
    margin-bottom: 15px;
}

.education-item strong {
    color: var(--primary);
}

/* Footer */
footer {
    background: linear-gradient(rgba(0,0,0,0.85), rgba(0,0,0,0.85)), url('../images/footer-bg.png') center/cover;
    color: var(--white);
    padding: 80px 0 20px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1.5fr 1.5fr;
    gap: 50px;
    margin-bottom: 60px;
}

.footer-col h3 {
    text-transform: uppercase;
    font-size: 1.1rem;
    margin-bottom: 30px;
    letter-spacing: 1px;
}

.newsletter-form {
    display: flex;
}

.newsletter-form input {
    flex: 1;
    padding: 12px;
    border: none;
    border-radius: 4px 0 0 4px;
}

.newsletter-form button {
    padding: 12px 25px;
    background: var(--secondary);
    color: var(--white);
    border: none;
    border-radius: 0 4px 4px 0;
    cursor: pointer;
    font-weight: bold;
}

.social-links {
    display: flex;
    gap: 15px;
    margin-top: 20px;
}

.social-links a {
    width: 35px;
    height: 35px;
    background: rgba(255,255,255,0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
}

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.85rem;
}

.footer-nav {
    display: flex;
    list-style: none;
}

.footer-nav li {
    margin-right: 20px;
}

.footer-nav li::after {
    content: "|";
    margin-left: 20px;
    color: rgba(255,255,255,0.3);
}

.footer-nav li:last-child::after {
    content: "";
}

/* Grid & Cards (For Blog and Experts) */
.grid-container {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-top: 40px;
}

.grid-card {
    background: var(--white);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 10px 20px rgba(0,0,0,0.05);
    transition: var(--transition);
    border: 1px solid #eee;
    display: flex;
    flex-direction: column;
}

.grid-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(0,0,0,0.1);
    border-color: var(--secondary);
}

.grid-card img {
    width: 100%;
    height: 240px;
    object-fit: cover;
}

.card-content {
    padding: 25px;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.card-content h3 {
    color: var(--primary);
    margin-bottom: 15px;
    font-size: 1.25rem;
    text-transform: uppercase;
}

.card-content p {
    color: var(--text-muted);
    font-size: 0.95rem;
    margin-bottom: 25px;
    flex-grow: 1;
}

.card-content .btn {
    align-self: flex-start;
    padding: 10px 20px;
    font-size: 0.85rem;
}

@media (max-width: 992px) {
    .grid-container {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 600px) {
    .grid-container {
        grid-template-columns: 1fr;
    }
}

/* Sticky CTA Button */
.sticky-cta {
    position: fixed;
    bottom: 30px;
    right: 30px;
    background: var(--secondary);
    color: var(--white);
    padding: 15px 30px;
    border-radius: 50px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    box-shadow: 0 10px 30px rgba(255, 90, 0, 0.4);
    z-index: 9999;
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    transition: var(--transition);
    animation: pulse-orange 2s infinite;
}

.sticky-cta:hover {
    transform: scale(1.05) translateY(-5px);
    background: #e65100;
    box-shadow: 0 15px 40px rgba(255, 90, 0, 0.6);
}

.sticky-cta-icon {
    font-size: 1.2rem;
}

@keyframes pulse-orange {
    0% {
        box-shadow: 0 0 0 0 rgba(255, 90, 0, 0.7);
    }
    70% {
        box-shadow: 0 0 0 20px rgba(255, 90, 0, 0);
    }
    100% {
        box-shadow: 0 0 0 0 rgba(255, 90, 0, 0);
    }
}

@media (max-width: 768px) {
    .sticky-cta {
        bottom: 20px;
        right: 20px;
        padding: 12px 20px;
        font-size: 0.8rem;
    }
}