/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --color-primary: #2563eb;
    --color-primary-light: #3b82f6;
    --color-primary-dark: #1e40af;
    --color-secondary: #8b5cf6;
    --color-accent: #06b6d4;
    --color-energy: #f59e0b;
    --color-maintenance: #3b82f6;
    --color-safety: #10b981;
    --color-text: #1e293b;
    --color-text-light: #64748b;
    --color-bg: #ffffff;
    --color-bg-subtle: #f8fafc;
    --color-glass: rgba(255, 255, 255, 0.7);
    --color-glass-border: rgba(255, 255, 255, 0.3);
    --blur-amount: 20px;
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.12);
    --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.15);
    --radius-large: 1rem;
    --radius-full: 9999px;
    --transition: cubic-bezier(0.4, 0, 0.2, 1);
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    line-height: 1.6;
    color: var(--color-text);
    background: linear-gradient(135deg, #f8fafc 0%, #e0f2fe 100%);
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* Navigation */
.nav-glass {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    backdrop-filter: blur(var(--blur-amount)) saturate(180%);
    background: var(--color-glass);
    border-bottom: 1px solid var(--color-glass-border);
    box-shadow: var(--shadow-sm);
}

.nav-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 700;
    font-size: 1.25rem;
    color: var(--color-text);
    text-decoration: none;
}

.logo a {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
    color: inherit;
}

.logo-icon {
    font-size: 1.5rem;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-links a {
    color: var(--color-text-light);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s var(--transition);
    position: relative;
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--color-primary);
}

.nav-links a.active::after {
    content: '';
    position: absolute;
    bottom: -0.5rem;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--color-primary);
    border-radius: var(--radius-full);
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

.mobile-menu-toggle span {
    width: 24px;
    height: 2px;
    background: var(--color-text);
    border-radius: var(--radius-full);
    transition: all 0.3s var(--transition);
}

/* Hero Section */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    overflow: hidden;
    padding-top: 5rem;
}

.hero-background {
    position: absolute;
    inset: 0;
    z-index: -1;
    overflow: hidden;
}

.gradient-orb {
    position: absolute;
    border-radius: var(--radius-full);
    filter: blur(80px);
    opacity: 0.3;
    animation: float 20s ease-in-out infinite;
}

.orb-1 {
    width: 500px;
    height: 500px;
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    top: -10%;
    right: -10%;
    animation-delay: 0s;
}

.orb-2 {
    width: 400px;
    height: 400px;
    background: linear-gradient(135deg, var(--color-accent), var(--color-primary));
    bottom: -10%;
    left: -10%;
    animation-delay: 7s;
}

.orb-3 {
    width: 300px;
    height: 300px;
    background: linear-gradient(135deg, var(--color-secondary), var(--color-accent));
    top: 40%;
    left: 50%;
    animation-delay: 14s;
}

@keyframes float {
    0%, 100% { transform: translate(0, 0) scale(1); }
    25% { transform: translate(10%, 10%) scale(1.1); }
    50% { transform: translate(-5%, 20%) scale(0.9); }
    75% { transform: translate(-10%, -10%) scale(1.05); }
}

.hero-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.hero-title {
    font-size: 4rem;
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    animation: fadeInUp 0.8s var(--transition);
}

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

.hero-subtitle {
    font-size: 1.5rem;
    color: var(--color-text-light);
    margin-bottom: 2.5rem;
    animation: fadeInUp 0.8s var(--transition) 0.2s both;
}

.hero-cta {
    display: flex;
    gap: 1rem;
    justify-content: center;
    animation: fadeInUp 0.8s var(--transition) 0.4s both;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.875rem 2rem;
    font-weight: 600;
    text-decoration: none;
    border-radius: var(--radius-large);
    transition: all 0.3s var(--transition);
    cursor: pointer;
    border: none;
    font-size: 1rem;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.2), transparent);
    opacity: 0;
    transition: opacity 0.3s var(--transition);
}

.btn:hover::before {
    opacity: 1;
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
    color: white;
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-secondary {
    backdrop-filter: blur(var(--blur-amount)) saturate(180%);
    background: var(--color-glass);
    color: var(--color-text);
    border: 1px solid var(--color-glass-border);
}

.btn-secondary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-large {
    padding: 1.125rem 2.5rem;
    font-size: 1.125rem;
}

.btn-full {
    width: 100%;
}

/* Sections */
.concept-section,
.content-section,
.stats-section,
.cta-section,
.service-detail,
.contact-section {
    padding: 6rem 0;
}

.bg-subtle {
    background: var(--color-bg-subtle);
}

.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 4rem;
}

.section-header.centered {
    text-align: center;
}

.section-badge {
    display: inline-block;
    padding: 0.5rem 1rem;
    background: linear-gradient(135deg, var(--color-primary-light), var(--color-accent));
    color: white;
    font-size: 0.875rem;
    font-weight: 600;
    border-radius: var(--radius-full);
    margin-bottom: 1rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--color-text);
}

.section-description {
    font-size: 1.125rem;
    color: var(--color-text-light);
    line-height: 1.8;
}

/* Features Grid */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
}

.feature-card {
    backdrop-filter: blur(var(--blur-amount)) saturate(180%);
    background: var(--color-glass);
    padding: 2.5rem;
    border-radius: var(--radius-large);
    border: 1px solid var(--color-glass-border);
    box-shadow: var(--shadow-sm);
    transition: all 0.4s var(--transition);
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
    border-color: rgba(255, 255, 255, 0.5);
}

.feature-icon {
    width: 64px;
    height: 64px;
    border-radius: var(--radius-large);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    position: relative;
}

.feature-icon::before {
    content: '';
    position: absolute;
    inset: -4px;
    border-radius: var(--radius-large);
    background: linear-gradient(135deg, currentColor, transparent);
    opacity: 0.1;
}

.feature-icon.energy {
    color: var(--color-energy);
    background: rgba(245, 158, 11, 0.1);
}

.feature-icon.maintenance {
    color: var(--color-maintenance);
    background: rgba(59, 130, 246, 0.1);
}

.feature-icon.safety {
    color: var(--color-safety);
    background: rgba(16, 185, 129, 0.1);
}

.feature-title {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--color-text);
}

.feature-description {
    color: var(--color-text-light);
    line-height: 1.7;
}

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

.stat-card {
    backdrop-filter: blur(var(--blur-amount)) saturate(180%);
    background: var(--color-glass);
    padding: 3rem 2rem;
    border-radius: var(--radius-large);
    text-align: center;
    border: 1px solid var(--color-glass-border);
    box-shadow: var(--shadow-md);
    transition: all 0.3s var(--transition);
}

.stat-card:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-lg);
}

.stat-value {
    font-size: 3rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0.5rem;
}

.stat-label {
    color: var(--color-text-light);
    font-weight: 500;
}

/* CTA Section */
.cta-card {
    backdrop-filter: blur(var(--blur-amount)) saturate(180%);
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.1), rgba(139, 92, 246, 0.1));
    padding: 4rem;
    border-radius: var(--radius-large);
    text-align: center;
    border: 1px solid var(--color-glass-border);
    box-shadow: var(--shadow-lg);
}

.cta-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.cta-description {
    font-size: 1.25rem;
    color: var(--color-text-light);
    margin-bottom: 2rem;
}

/* Page Header */
.page-header {
    padding: 10rem 0 6rem;
    text-align: center;
}

.page-header-content {
    max-width: 800px;
    margin: 0 auto;
}

.page-badge {
    display: inline-block;
    padding: 0.5rem 1rem;
    background: linear-gradient(135deg, var(--color-primary-light), var(--color-accent));
    color: white;
    font-size: 0.875rem;
    font-weight: 600;
    border-radius: var(--radius-full);
    margin-bottom: 1rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.page-title {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
}

.page-subtitle {
    font-size: 1.25rem;
    color: var(--color-text-light);
    line-height: 1.8;
}

/* Two Column Layout */
.two-column-layout {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 4rem;
    align-items: center;
}

.content-column {
    display: flex;
    flex-direction: column;
}

.content-title {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
}

.content-text {
    color: var(--color-text-light);
    margin-bottom: 1rem;
    line-height: 1.8;
}

.image-placeholder {
    aspect-ratio: 4/3;
    backdrop-filter: blur(var(--blur-amount)) saturate(180%);
    background: var(--color-glass);
    border-radius: var(--radius-large);
    border: 1px solid var(--color-glass-border);
    display: flex;
    align-items: center;
    justify-content: center;
}

.placeholder-content {
    text-align: center;
    color: var(--color-text-light);
}

.placeholder-content svg {
    margin-bottom: 1rem;
}

/* Process Grid */
.process-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.process-card {
    backdrop-filter: blur(var(--blur-amount)) saturate(180%);
    background: var(--color-glass);
    padding: 2rem;
    border-radius: var(--radius-large);
    border: 1px solid var(--color-glass-border);
}

.process-number {
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 1rem;
}

.process-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.process-description {
    color: var(--color-text-light);
    line-height: 1.7;
}

/* Values Grid */
.values-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.value-card {
    text-align: center;
    padding: 2rem;
}

.value-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.value-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
}

.value-description {
    color: var(--color-text-light);
    line-height: 1.7;
}

/* Service Detail */
.service-content {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 3rem;
    align-items: start;
}

.service-icon-large {
    width: 80px;
    height: 80px;
    border-radius: var(--radius-large);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.service-icon-large.energy {
    color: var(--color-energy);
    background: rgba(245, 158, 11, 0.1);
}

.service-icon-large.maintenance {
    color: var(--color-maintenance);
    background: rgba(59, 130, 246, 0.1);
}

.service-icon-large.safety {
    color: var(--color-safety);
    background: rgba(16, 185, 129, 0.1);
}

.service-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
}

.service-description {
    font-size: 1.125rem;
    color: var(--color-text-light);
    line-height: 1.8;
    margin-bottom: 2rem;
}

.features-list {
    list-style: none;
    margin-top: 1.5rem;
}

.features-list li {
    padding: 0.75rem 0;
    color: var(--color-text-light);
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.features-list svg {
    color: var(--color-primary);
    flex-shrink: 0;
}

/* Contact Section */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 4rem;
}

.contact-info-title {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.contact-info-text {
    color: var(--color-text-light);
    margin-bottom: 3rem;
}

.contact-methods {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.contact-method {
    display: flex;
    gap: 1.5rem;
    align-items: start;
}

.contact-method-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-large);
    background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    flex-shrink: 0;
}

.contact-method-content h3 {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.contact-method-content p {
    color: var(--color-text-light);
}

/* Contact Form */
.contact-form-container {
    backdrop-filter: blur(var(--blur-amount)) saturate(180%);
    background: var(--color-glass);
    padding: 3rem;
    border-radius: var(--radius-large);
    border: 1px solid var(--color-glass-border);
    box-shadow: var(--shadow-lg);
}

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

.form-group label {
    display: block;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--color-text);
}

.form-input {
    width: 100%;
    padding: 0.875rem 1.25rem;
    border: 1px solid rgba(100, 116, 139, 0.2);
    border-radius: var(--radius-large);
    font-size: 1rem;
    font-family: inherit;
    backdrop-filter: blur(10px);
    background: rgba(255, 255, 255, 0.5);
    transition: all 0.3s var(--transition);
}

.form-input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

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

/* Footer */
.footer {
    background: linear-gradient(135deg, rgba(15, 23, 42, 0.95), rgba(30, 41, 59, 0.95));
    backdrop-filter: blur(var(--blur-amount));
    color: white;
    padding: 4rem 0 2rem;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 4rem;
    margin-bottom: 3rem;
}

.footer-brand .logo {
    color: white;
    margin-bottom: 1rem;
}

.footer-tagline {
    color: rgba(255, 255, 255, 0.7);
}

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

.footer-column h4 {
    font-size: 1.125rem;
    margin-bottom: 1rem;
}

.footer-column ul {
    list-style: none;
}

.footer-column ul li {
    margin-bottom: 0.75rem;
}

.footer-column a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: color 0.3s var(--transition);
}

.footer-column a:hover {
    color: white;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.7);
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-links {
        display: none;
    }

    .mobile-menu-toggle {
        display: flex;
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .hero-subtitle {
        font-size: 1.125rem;
    }

    .hero-cta {
        flex-direction: column;
    }

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

    .page-title {
        font-size: 2.5rem;
    }

    .features-grid,
    .stats-grid,
    .process-grid,
    .values-grid {
        grid-template-columns: 1fr;
    }

    .two-column-layout,
    .contact-grid,
    .service-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .container {
        padding: 0 1.5rem;
    }
}