/* ===================================
   Global Energy Technologies - Styles
   =================================== */

/* CSS Variables */
:root {
    --color-bg-dark: #0a0f0d;
    --color-bg-card: #111a15;
    --color-bg-elevated: #162019;
    --color-primary: #1b4332;
    --color-primary-light: #2d6a4f;
    --color-accent: #c9a227;
    --color-accent-light: #e0b74a;
    --color-text: #f5f5f0;
    --color-text-muted: #a8b8a9;
    --color-text-dim: #6b7d6e;
    --color-border: rgba(201, 162, 39, 0.2);
    --font-heading: 'Playfair Display', serif;
    --font-body: 'Manrope', sans-serif;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Reset & Base */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-body);
    background-color: var(--color-bg-dark);
    color: var(--color-text);
    line-height: 1.6;
    overflow-x: hidden;
}

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

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

button {
    cursor: pointer;
    border: none;
    background: none;
    font-family: inherit;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Typography */
h1, h2, h3, h4 {
    font-family: var(--font-heading);
    font-weight: 600;
    line-height: 1.2;
}

.text-gradient {
    background: linear-gradient(135deg, var(--color-accent), var(--color-accent-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 28px;
    border-radius: 8px;
    font-weight: 600;
    font-size: 0.95rem;
    transition: var(--transition);
    letter-spacing: 0.02em;
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-accent), var(--color-accent-light));
    color: var(--color-bg-dark);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(201, 162, 39, 0.3);
}

.btn-secondary {
    background: transparent;
    color: var(--color-text);
    border: 1px solid var(--color-border);
}

.btn-secondary:hover {
    border-color: var(--color-accent);
    color: var(--color-accent);
}

.btn-outline {
    background: transparent;
    color: var(--color-accent);
    border: 1px solid var(--color-accent);
    padding: 10px 20px;
    font-size: 0.85rem;
}

.btn-outline:hover {
    background: var(--color-accent);
    color: var(--color-bg-dark);
}

.btn-full {
    width: 100%;
    justify-content: center;
}

/* Navbar */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(10, 15, 13, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--color-border);
    padding: 16px 0;
    transition: var(--transition);
}

.navbar.scrolled {
    padding: 12px 0;
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
    font-size: 1.2rem;
    color: var(--color-text);
}

.logo-icon {
    color: var(--color-accent);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav-link {
    color: var(--color-text-muted);
    font-size: 0.9rem;
    font-weight: 500;
}

.nav-link:hover {
    color: var(--color-accent);
}

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 8px;
}

.mobile-menu-btn span {
    width: 24px;
    height: 2px;
    background: var(--color-text);
    transition: var(--transition);
}

/* Mobile Menu */
.mobile-menu {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--color-bg-dark);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 24px;
    z-index: 999;
    transform: translateX(100%);
    transition: var(--transition);
}

.mobile-menu.active {
    transform: translateX(0);
}

.mobile-link {
    font-size: 1.5rem;
    color: var(--color-text);
    font-family: var(--font-heading);
}

.mobile-link:hover {
    color: var(--color-accent);
}

.mobile-menu .btn {
    margin-top: 16px;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
    padding: 120px 0 80px;
}

.hero-bg {
    position: absolute;
    inset: 0;
    background: 
        radial-gradient(ellipse at 20% 50%, rgba(27, 67, 50, 0.6) 0%, transparent 60%),
        radial-gradient(ellipse at 80% 20%, rgba(201, 162, 39, 0.15) 0%, transparent 50%),
        radial-gradient(ellipse at 50% 80%, rgba(45, 106, 79, 0.4) 0%, transparent 60%),
        linear-gradient(180deg, var(--color-bg-dark) 0%, #0d1510 100%);
    z-index: 0;
}

.hero-bg::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23c9a227' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
    opacity: 0.5;
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 800px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: rgba(201, 162, 39, 0.1);
    border: 1px solid var(--color-border);
    border-radius: 50px;
    font-size: 0.85rem;
    color: var(--color-accent);
    margin-bottom: 24px;
}

.hero-title {
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    margin-bottom: 24px;
    letter-spacing: -0.02em;
}

.hero-subtitle {
    font-size: clamp(1rem, 2vw, 1.25rem);
    color: var(--color-text-muted);
    margin-bottom: 40px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 64px;
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 40px;
    flex-wrap: wrap;
}

.stat-item {
    text-align: center;
}

.stat-number {
    display: block;
    font-family: var(--font-heading);
    font-size: 2rem;
    color: var(--color-accent);
    font-weight: 600;
}

.stat-label {
    font-size: 0.85rem;
    color: var(--color-text-muted);
}

.stat-divider {
    width: 1px;
    height: 40px;
    background: var(--color-border);
    align-self: center;
}

.scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    color: var(--color-text-dim);
    font-size: 0.75rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    animation: float 2s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateX(-50%) translateY(0); }
    50% { transform: translateX(-50%) translateY(8px); }
}

/* Section Styles */
section {
    padding: 100px 0;
}

.section-header {
    text-align: center;
    max-width: 600px;
    margin: 0 auto 64px;
}

.section-tag {
    display: inline-block;
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--color-accent);
    margin-bottom: 16px;
}

.section-title {
    font-size: clamp(2rem, 4vw, 3rem);
    margin-bottom: 16px;
}

.section-desc {
    color: var(--color-text-muted);
    font-size: 1.05rem;
}

/* Services Section */
.services {
    background: var(--color-bg-card);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 24px;
}

.service-card {
    background: var(--color-bg-elevated);
    border: 1px solid var(--color-border);
    border-radius: 16px;
    padding: 36px 28px;
    transition: var(--transition);
}

.service-card:hover {
    transform: translateY(-4px);
    border-color: var(--color-accent);
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.3);
}

.service-icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(201, 162, 39, 0.1);
    border-radius: 12px;
    color: var(--color-accent);
    margin-bottom: 20px;
}

.service-card h3 {
    font-size: 1.3rem;
    margin-bottom: 12px;
    font-family: var(--font-body);
    font-weight: 700;
}

.service-card p {
    color: var(--color-text-muted);
    font-size: 0.95rem;
    margin-bottom: 20px;
}

.service-link {
    font-size: 0.9rem;
    color: var(--color-accent);
    font-weight: 600;
}

.service-link:hover {
    color: var(--color-accent-light);
}

/* About Section */
.about-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: center;
}

.about-image {
    position: relative;
}

.about-img {
    width: 100%;
    height: 500px;
    object-fit: cover;
    border-radius: 16px;
    border: 1px solid var(--color-border);
}

.about-badge {
    position: absolute;
    bottom: -24px;
    right: -24px;
    background: var(--color-accent);
    color: var(--color-bg-dark);
    padding: 24px;
    border-radius: 16px;
    text-align: center;
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.4);
}

.badge-number {
    display: block;
    font-family: var(--font-heading);
    font-size: 2.5rem;
    font-weight: 600;
    line-height: 1;
}

.badge-text {
    font-size: 0.85rem;
    font-weight: 600;
}

.about-content .section-tag {
    text-align: left;
}

.about-content .section-title {
    text-align: left;
    margin-bottom: 24px;
}

.about-text {
    color: var(--color-text-muted);
    margin-bottom: 16px;
    font-size: 1rem;
}

.about-features {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-top: 32px;
}

.feature {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--color-text);
    font-weight: 500;
    font-size: 0.95rem;
}

.feature svg {
    color: var(--color-accent);
    flex-shrink: 0;
}

/* Process Section */
.process {
    background: var(--color-bg-card);
}

.process-steps {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.step {
    text-align: center;
    padding: 32px 20px;
    position: relative;
}

.step:not(:last-child)::after {
    content: '';
    position: absolute;
    top: 40px;
    right: -12px;
    width: 24px;
    height: 2px;
    background: var(--color-border);
}

.step-number {
    font-family: var(--font-heading);
    font-size: 3rem;
    color: var(--color-accent);
    opacity: 0.3;
    font-weight: 600;
    line-height: 1;
    margin-bottom: 16px;
}

.step h3 {
    font-size: 1.2rem;
    margin-bottom: 12px;
    font-family: var(--font-body);
    font-weight: 700;
}

.step p {
    color: var(--color-text-muted);
    font-size: 0.9rem;
}

/* Contact Section */
.contact-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
}

.contact-info .section-tag,
.contact-info .section-title {
    text-align: left;
}

.contact-info .section-title {
    margin-bottom: 16px;
}

.contact-desc {
    color: var(--color-text-muted);
    margin-bottom: 40px;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.contact-item {
    display: flex;
    gap: 16px;
}

.contact-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(201, 162, 39, 0.1);
    border-radius: 12px;
    color: var(--color-accent);
    flex-shrink: 0;
}

.contact-item h4 {
    font-size: 0.85rem;
    color: var(--color-text-dim);
    margin-bottom: 4px;
    font-family: var(--font-body);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.contact-item p {
    color: var(--color-text);
    font-size: 1rem;
}

.contact-item a:hover {
    color: var(--color-accent);
}

/* Contact Form */
.contact-form-wrapper {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: 16px;
    padding: 40px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--color-text-muted);
    margin-bottom: 8px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 14px 16px;
    background: var(--color-bg-elevated);
    border: 1px solid var(--color-border);
    border-radius: 8px;
    color: var(--color-text);
    font-family: var(--font-body);
    font-size: 1rem;
    transition: var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px rgba(201, 162, 39, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.form-group select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%23c9a227' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 16px center;
}

.form-group select option {
    background: var(--color-bg-elevated);
}

.form-success {
    display: none;
    text-align: center;
    padding: 40px 20px;
}

.form-success.active {
    display: block;
}

.success-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(201, 162, 39, 0.1);
    border-radius: 50%;
    color: var(--color-accent);
}

.form-success h3 {
    font-size: 1.5rem;
    margin-bottom: 12px;
}

.form-success p {
    color: var(--color-text-muted);
}

/* Footer */
.footer {
    background: var(--color-bg-card);
    border-top: 1px solid var(--color-border);
    padding: 64px 0 32px;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 48px;
    margin-bottom: 48px;
}

.footer-brand p {
    color: var(--color-text-muted);
    margin-top: 16px;
    font-size: 0.95rem;
}

.footer-links h4 {
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-accent);
    margin-bottom: 16px;
    font-family: var(--font-body);
}

.footer-links a,
.footer-links p {
    display: block;
    color: var(--color-text-muted);
    font-size: 0.9rem;
    margin-bottom: 10px;
}

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

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 32px;
    border-top: 1px solid var(--color-border);
}

.footer-bottom p {
    color: var(--color-text-dim);
    font-size: 0.85rem;
}

.footer-social {
    display: flex;
    gap: 16px;
}

.footer-social a {
    color: var(--color-text-muted);
}

.footer-social a:hover {
    color: var(--color-accent);
}

/* Responsive */
@media (max-width: 1024px) {
    .about-container,
    .contact-container {
        grid-template-columns: 1fr;
        gap: 48px;
    }
    
    .about-image {
        max-width: 500px;
        margin: 0 auto;
    }
    
    .about-badge {
        right: 0;
    }
    
    .footer-content {
        grid-template-columns: 1fr 1fr;
    }
    
    .process-steps {
        grid-template-columns: 1fr 1fr;
    }
    
    .step:not(:last-child)::after {
        display: none;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    
    .mobile-menu-btn {
        display: flex;
    }
    
    .hero {
        padding: 100px 0 60px;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .hero-buttons .btn {
        width: 100%;
        max-width: 280px;
        justify-content: center;
    }
    
    .hero-stats {
        gap: 24px;
    }
    
    .stat-divider {
        display: none;
    }
    
    section {
        padding: 64px 0;
    }
    
    .about-features {
        grid-template-columns: 1fr;
    }
    
    .process-steps {
        grid-template-columns: 1fr;
    }
    
    .contact-form-wrapper {
        padding: 24px;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 32px;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: 16px;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .about-badge {
        right: -16px;
        bottom: -16px;
        padding: 16px;
    }
    
    .badge-number {
        font-size: 2rem;
    }
}