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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
    color: #333;
    overflow-x: hidden;
}

:root {
    --brand-primary: #2563eb;
    --brand-secondary: #0ea5e9;
    --brand-accent: #fbbf24;
    --text-primary: #1f2937;
    --text-secondary: #6b7280;
}

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

/* Header Styles */
.header {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    transition: all 0.3s ease;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo {
    height: 40px;
    width: auto;
}

.logo-text {
    font-size: 24px;
    font-weight: 700;
    color: var(--brand-primary);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 30px;
}

.nav-link {
    text-decoration: none;
    color: #333;
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
}

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

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--brand-primary);
    transition: width 0.3s ease;
}

.nav-link:hover::after {
    width: 100%;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.bar {
    width: 25px;
    height: 3px;
    background: #333;
    margin: 3px 0;
    transition: 0.3s;
}

/* Hero Section */
.hero {
    padding: 120px 0 80px;
    background: linear-gradient(135deg, var(--brand-secondary) 0%, var(--brand-primary) 100%);
    color: white;
    overflow: hidden;
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 20px;
}

.highlight {
    color: var(--brand-accent);
}

.hero-subtitle {
    font-size: 1.25rem;
    margin-bottom: 30px;
    opacity: 0.9;
}

.hero-buttons {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
}

.btn {
    display: inline-block;
    padding: 12px 30px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    border: 2px solid transparent;
    cursor: pointer;
    font-size: 16px;
}

.btn-primary {
    background: var(--brand-primary);
    color: white;
    border-color: var(--brand-primary);
}

.btn-primary:hover {
    background: #1d4ed8;
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(37, 99, 235, 0.3);
}

.btn-secondary {
    background: transparent;
    color: white;
    border-color: white;
}

.btn-secondary:hover {
    background: white;
    color: #2563eb;
}

.btn-outline {
    background: transparent;
    color: var(--brand-primary);
    border-color: var(--brand-primary);
}

.btn-outline:hover {
    background: var(--brand-primary);
    color: white;
}

.btn-full {
    width: 100%;
}

.hero-image {
    text-align: center;
}

.hero-img {
    max-width: 100%;
    height: auto;
    border-radius: 12px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

/* Section Styles */
section {
    padding: 80px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 15px;
    color: var(--text-primary);
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

.section-description {
    font-size: 1.125rem;
    color: var(--text-secondary);
    margin-bottom: 30px;
}

/* Features Section */
.features {
    background: #f9fafb;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
}

.feature-card {
    background: white;
    padding: 40px 30px;
    border-radius: 12px;
    text-align: center;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

.feature-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    color: white;
    font-size: 2rem;
}

.feature-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 15px;
    color: #1f2937;
}

.feature-description {
    color: #6b7280;
    line-height: 1.6;
}

/* Control Section */
.control {
    background: white;
}

.control-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.control-features {
    margin-top: 30px;
}

.control-feature {
    display: flex;
    gap: 20px;
    margin-bottom: 25px;
    align-items: flex-start;
}

.control-feature i {
    color: #2563eb;
    font-size: 1.5rem;
    margin-top: 5px;
}

.control-feature h4 {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 5px;
    color: #1f2937;
}

.control-feature p {
    color: #6b7280;
}

/* Dashboard Preview */
.dashboard-preview {
    background: white;
    border-radius: 12px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    overflow: hidden;
}

.dashboard-header {
    background: #2563eb;
    color: white;
    padding: 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.dashboard-title {
    font-weight: 600;
    font-size: 1.125rem;
}

.dashboard-stats {
    display: flex;
    gap: 20px;
}

.stat {
    text-align: center;
}

.stat-number {
    display: block;
    font-size: 1.5rem;
    font-weight: 700;
}

.stat-label {
    font-size: 0.875rem;
    opacity: 0.8;
}

.dashboard-chart {
    padding: 30px;
    height: 200px;
    display: flex;
    align-items: end;
}

.chart-bars {
    display: flex;
    gap: 15px;
    align-items: end;
    width: 100%;
    height: 100%;
}

.bar {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    width: 100%;
    border-radius: 4px 4px 0 0;
    transition: all 0.3s ease;
}

.bar:hover {
    opacity: 0.8;
}

/* Efficiency Section */
.efficiency {
    background: #f9fafb;
}

.efficiency-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.efficiency-stats {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.stat-card {
    background: white;
    padding: 30px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    gap: 20px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
}

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

.stat-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.5rem;
}

.stat-info {
    flex: 1;
}

.stat-number {
    display: block;
    font-size: 2rem;
    font-weight: 700;
    color: #2563eb;
}

.stat-text {
    color: #6b7280;
    font-size: 0.875rem;
}

.efficiency-benefits {
    margin-top: 30px;
}

.benefit {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 15px;
}

.benefit i {
    color: #10b981;
    font-size: 1.25rem;
}

.benefit span {
    color: #374151;
    font-weight: 500;
}

/* Pricing Section */
.pricing {
    background: white;
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 60px;
}

.pricing-card {
    background: white;
    border: 2px solid #e5e7eb;
    border-radius: 12px;
    padding: 40px 30px;
    text-align: center;
    position: relative;
    transition: all 0.3s ease;
}

.pricing-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

.pricing-card.featured {
    border-color: #2563eb;
    transform: scale(1.05);
}

.popular-badge {
    position: absolute;
    top: -15px;
    left: 50%;
    transform: translateX(-50%);
    background: #2563eb;
    color: white;
    padding: 8px 20px;
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 600;
}

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

.plan-name {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 10px;
    color: #1f2937;
}

.plan-price {
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: 5px;
    margin-bottom: 10px;
}

.currency {
    font-size: 1.25rem;
    color: #6b7280;
}

.amount {
    font-size: 3rem;
    font-weight: 700;
    color: #2563eb;
}

.period {
    font-size: 1rem;
    color: #6b7280;
}

.plan-description {
    color: #6b7280;
}

.pricing-features {
    margin-bottom: 30px;
}

.features-list {
    list-style: none;
    text-align: left;
}

.features-list li {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 12px;
    color: #374151;
}

.features-list i {
    color: #10b981;
    font-size: 1rem;
}

/* Calculator */
.calc-form {
    display: grid;
    gap: 16px;
}

.calc-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    align-items: center;
}

.calc-label {
    font-weight: 600;
    color: #1f2937;
}

.calc-summary {
    display: grid;
    gap: 20px;
    text-align: center;
}

.calc-figure {
    display: grid;
    gap: 6px;
    justify-items: center;
}

.calc-amount {
    font-size: 2rem;
    font-weight: 700;
    color: #2563eb;
}

.calc-note {
    margin-top: 10px;
    font-size: 0.9rem;
    color: #6b7280;
}

/* Contact Section */
.contact {
    background: #f9fafb;
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
}

.contact-methods {
    margin-top: 30px;
}

.contact-method {
    display: flex;
    gap: 20px;
    margin-bottom: 25px;
    align-items: flex-start;
}

.contact-method i {
    color: #2563eb;
    font-size: 1.5rem;
    margin-top: 5px;
}

.contact-method h4 {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 5px;
    color: #1f2937;
}

.contact-method p {
    color: #6b7280;
}

/* Form Styles */
.form {
    background: white;
    padding: 40px;
    border-radius: 12px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
}

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

.form-input,
.form-textarea {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid #e5e7eb;
    border-radius: 8px;
    font-size: 16px;
    transition: border-color 0.3s ease;
    font-family: inherit;
}

.form-input:focus,
.form-textarea:focus {
    outline: none;
    border-color: #2563eb;
}

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

/* Footer */
.footer {
    background: #1f2937;
    color: white;
    padding: 60px 0 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 20px;
}

.footer-logo-img {
    height: 40px;
    width: auto;
}

.footer-logo-text {
    font-size: 24px;
    font-weight: 700;
    color: #2563eb;
}

.footer-description {
    color: #9ca3af;
    line-height: 1.6;
}

.footer-title {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 20px;
    color: white;
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: 10px;
}

.footer-links a {
    color: #9ca3af;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: #2563eb;
}

.footer-bottom {
    border-top: 1px solid #374151;
    padding-top: 20px;
    text-align: center;
    color: #9ca3af;
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background-color: white;
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: 0 10px 27px rgba(0, 0, 0, 0.05);
        padding: 20px 0;
    }

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

    .nav-toggle {
        display: flex;
    }

    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 40px;
    }

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

    .control-content,
    .efficiency-content,
    .contact-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .features-grid {
        grid-template-columns: 1fr;
    }

    .pricing-grid {
        grid-template-columns: 1fr;
    }

    .pricing-card.featured {
        transform: none;
    }

    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

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

    .hero-buttons {
        justify-content: center;
    }

    .efficiency-stats {
        order: 2;
    }

    .stat-card:hover {
        transform: translateY(-5px);
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }

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

    .section-title {
        font-size: 1.75rem;
    }

    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }

    .btn {
        width: 100%;
        max-width: 300px;
    }

    .feature-card,
    .pricing-card {
        padding: 30px 20px;
    }

    .form {
        padding: 30px 20px;
    }
}

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

.feature-card,
.pricing-card,
.stat-card {
    animation: fadeInUp 0.6s ease forwards;
}

/* Smooth scrolling for older browsers */
@media (prefers-reduced-motion: no-preference) {
    html {
        scroll-behavior: smooth;
    }
}

/* Focus styles for accessibility */
.btn:focus,
.nav-link:focus,
.form-input:focus,
.form-textarea:focus {
    outline: 2px solid #2563eb;
    outline-offset: 2px;
}

/* Print styles */
@media print {
    .header,
    .footer {
        display: none;
    }
    
    .hero {
        background: none;
        color: black;
    }
    
    .btn {
        border: 1px solid black;
        background: none;
        color: black;
    }
}