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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', sans-serif;
    line-height: 1.6;
    color: #1e293b;
    background: #ffffff;
    overflow-x: hidden;
}

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

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid #e2e8f0;
    z-index: 1000;
    padding: 16px 0;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.4rem;
    font-weight: 700;
    color: #2980b9;
    text-decoration: none;
    transition: opacity 0.2s ease;
}

.nav-brand:hover {
    opacity: 0.8;
}

.nav-brand i {
    font-size: 1.6rem;
    color: #27ae60;
}

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

.nav-links a {
    color: #475569;
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    transition: color 0.2s ease;
}

.nav-links a:hover {
    color: #2980b9;
}

.nav-actions {
    display: flex;
    gap: 12px;
    align-items: center;
}

.btn-secondary {
    padding: 8px 20px;
    border: 1px solid #cbd5e1;
    border-radius: 8px;
    color: #475569;
    text-decoration: none;
    font-weight: 600;
    font-size: 0.9rem;
    transition: all 0.2s ease;
    background: white;
}

.btn-secondary:hover {
    background: #f8fafc;
    border-color: #94a3b8;
}

.btn-primary {
    padding: 8px 20px;
    background: linear-gradient(135deg, #2980b9 0%, #27ae60 100%);
    color: white;
    text-decoration: none;
    border-radius: 8px;
    font-weight: 600;
    font-size: 0.9rem;
    transition: all 0.2s ease;
    border: none;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(41, 128, 185, 0.3);
}

.btn-large {
    padding: 14px 28px;
    font-size: 1rem;
}

/* Hero Section */
.hero {
    padding: 140px 0 80px;
    background: linear-gradient(180deg, #f8fafc 0%, #ffffff 100%);
    position: relative;
    overflow: hidden;
}

.hero-content {
    max-width: 600px;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.1;
    color: #0f172a;
    margin-bottom: 24px;
    letter-spacing: -0.02em;
}

.hero-description {
    font-size: 1.25rem;
    color: #475569;
    margin-bottom: 32px;
    line-height: 1.7;
}

.hero-actions {
    display: flex;
    gap: 16px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.hero-actions .btn-primary,
.hero-actions .btn-secondary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.hero-footnote {
    color: #64748b;
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: 8px;
}

.hero-footnote i {
    color: #27ae60;
}

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

.hero-visual {
    position: relative;
}

.mockup-container {
    position: relative;
    animation: float 6s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-20px); }
}

.mockup-card {
    background: white;
    border-radius: 16px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
    overflow: hidden;
    border: 1px solid #e2e8f0;
}

.mockup-header {
    background: #f8fafc;
    padding: 12px 16px;
    display: flex;
    gap: 8px;
    border-bottom: 1px solid #e2e8f0;
}

.mockup-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: #cbd5e1;
}

.mockup-content {
    padding: 24px;
}

.invoice-preview {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.invoice-item {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 16px;
    background: #f8fafc;
    border-radius: 12px;
    border: 1px solid #e2e8f0;
}

.invoice-item i {
    font-size: 1.5rem;
    color: #2980b9;
}

.invoice-info {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.invoice-name {
    font-weight: 600;
    color: #1e293b;
    font-size: 0.95rem;
}

.invoice-date {
    font-size: 0.85rem;
    color: #64748b;
}

.invoice-status {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 6px 12px;
    border-radius: 6px;
    font-size: 0.85rem;
    font-weight: 600;
    white-space: nowrap;
}

.invoice-status.success {
    background: #d1fae5;
    color: #065f46;
}

.invoice-status.processing {
    background: #fef3c7;
    color: #92400e;
}

/* Stats Section */
.stats-section {
    padding: 60px 0;
    background: white;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 40px;
}

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

.stat-number {
    font-size: 3rem;
    font-weight: 800;
    background: linear-gradient(135deg, #2980b9 0%, #27ae60 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 8px;
}

.stat-label {
    font-size: 0.95rem;
    color: #64748b;
    font-weight: 500;
}

/* Features Section */
.features-section {
    padding: 100px 0;
    background: #f8fafc;
}

.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 60px;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 800;
    color: #0f172a;
    margin-bottom: 16px;
    letter-spacing: -0.02em;
}

.section-description {
    font-size: 1.15rem;
    color: #64748b;
    line-height: 1.7;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.feature-card {
    background: white;
    padding: 32px;
    border-radius: 16px;
    border: 1px solid #e2e8f0;
    transition: all 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.08);
}

.feature-icon {
    width: 56px;
    height: 56px;
    border-radius: 12px;
    background: linear-gradient(135deg, #2980b9 0%, #27ae60 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
}

.feature-icon i {
    font-size: 1.5rem;
    color: white;
}

.feature-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: #0f172a;
    margin-bottom: 12px;
}

.feature-description {
    font-size: 0.95rem;
    color: #64748b;
    line-height: 1.7;
}

/* How It Works Section */
.how-it-works {
    padding: 100px 0;
    background: white;
}

.steps-grid {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 0;
    align-items: center;
    max-width: 1100px;
    margin: 0 auto;
}

.step-card {
    background: #f8fafc;
    padding: 32px 24px;
    border-radius: 16px;
    border: 1px solid #e2e8f0;
    grid-column: span 1.5;
    height: 100%;
    display: flex;
    flex-direction: column;
}

.step-number {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: linear-gradient(135deg, #2980b9 0%, #27ae60 100%);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.1rem;
    margin-bottom: 16px;
}

.step-title {
    font-size: 1.1rem;
    font-weight: 700;
    color: #0f172a;
    margin-bottom: 12px;
}

.step-description {
    font-size: 0.9rem;
    color: #64748b;
    line-height: 1.6;
}

.step-arrow {
    display: flex;
    align-items: center;
    justify-content: center;
    color: #cbd5e1;
    font-size: 1.5rem;
    grid-column: span 1;
}

/* Pricing Section */
.pricing-section {
    padding: 100px 0;
    background: #f8fafc;
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 24px;
    max-width: 1300px;
    margin: 0 auto;
}

.pricing-card {
    background: white;
    border-radius: 16px;
    border: 1px solid #e2e8f0;
    padding: 32px 24px;
    position: relative;
    transition: all 0.3s ease;
}

.pricing-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.08);
}

.pricing-card.featured {
    border: 2px solid #2980b9;
    box-shadow: 0 8px 24px rgba(41, 128, 185, 0.15);
}

.pricing-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: linear-gradient(135deg, #2980b9 0%, #27ae60 100%);
    color: white;
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 700;
}

.pricing-header {
    text-align: center;
    margin-bottom: 32px;
    padding-bottom: 24px;
    border-bottom: 1px solid #e2e8f0;
}

.plan-name {
    font-size: 1.5rem;
    font-weight: 700;
    color: #0f172a;
    margin-bottom: 12px;
}

.plan-price {
    margin-bottom: 8px;
}

.price-amount {
    font-size: 2rem;
    font-weight: 800;
    color: #2980b9;
}

.price-period {
    font-size: 1rem;
    font-weight: 500;
    color: #64748b;
}

.plan-description {
    color: #64748b;
    font-size: 0.95rem;
}

.plan-features {
    list-style: none;
    margin-bottom: 32px;
}

.plan-features li {
    padding: 12px 0;
    color: #475569;
    font-size: 0.95rem;
    display: flex;
    align-items: center;
    gap: 12px;
}

.plan-features li i {
    color: #27ae60;
    font-size: 1rem;
}

.btn-outline {
    display: block;
    text-align: center;
    padding: 12px 24px;
    border: 2px solid #2980b9;
    border-radius: 8px;
    color: #2980b9;
    text-decoration: none;
    font-weight: 600;
    font-size: 0.95rem;
    transition: all 0.2s ease;
    background: white;
}

.btn-outline:hover {
    background: #2980b9;
    color: white;
}

/* CTA Section */
.cta-section {
    padding: 100px 0;
    background: linear-gradient(135deg, #2980b9 0%, #27ae60 100%);
    position: relative;
    overflow: hidden;
}

.cta-content {
    text-align: center;
    position: relative;
    z-index: 1;
}

.cta-title {
    font-size: 3rem;
    font-weight: 800;
    color: white;
    margin-bottom: 20px;
    letter-spacing: -0.02em;
}

.cta-description {
    font-size: 1.25rem;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 40px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.cta-actions {
    display: flex;
    justify-content: center;
    gap: 16px;
}

.cta-section .btn-primary {
    background: white;
    color: #2980b9;
}

.cta-section .btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
}

/* Footer */
.footer {
    padding: 60px 0 30px;
    background: #0f172a;
    color: white;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 60px;
    margin-bottom: 40px;
}

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

.footer-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.4rem;
    font-weight: 700;
    color: white;
    margin-bottom: 16px;
}

.footer-brand i {
    font-size: 1.6rem;
    color: #27ae60;
}

.footer-description {
    color: #94a3b8;
    font-size: 0.95rem;
    line-height: 1.7;
}

.footer-title {
    font-size: 1rem;
    font-weight: 700;
    color: white;
    margin-bottom: 16px;
}

.footer-links {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-links a {
    color: #94a3b8;
    text-decoration: none;
    font-size: 0.9rem;
    transition: color 0.2s ease;
}

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

.footer-bottom {
    padding-top: 30px;
    border-top: 1px solid #1e293b;
    text-align: center;
    color: #64748b;
    font-size: 0.9rem;
}

/* Responsive Design */
@media (max-width: 992px) {
    .hero .container {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .hero-visual {
        order: -1;
    }

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

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 30px;
    }

    .features-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 24px;
    }

    .steps-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .step-card {
        grid-column: span 1;
    }

    .step-arrow {
        display: none;
    }

    .pricing-grid {
        grid-template-columns: 1fr;
        gap: 24px;
        max-width: 500px;
    }

    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 40px;
    }

    .nav-links {
        display: none;
    }
}

@media (max-width: 768px) {
    .hero {
        padding: 100px 0 60px;
    }

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

    .hero-description {
        font-size: 1.1rem;
    }

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

    .hero-actions .btn-primary,
    .hero-actions .btn-secondary {
        width: 100%;
        justify-content: center;
    }

    .stats-grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }

    .features-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .feature-card {
        padding: 24px;
    }

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

    .section-description {
        font-size: 1rem;
    }

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

    .cta-description {
        font-size: 1.1rem;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }

    .nav-actions {
        gap: 8px;
    }

    .nav-actions .btn-secondary,
    .nav-actions .btn-primary {
        padding: 6px 14px;
        font-size: 0.85rem;
    }
}

@media (max-width: 576px) {
    .container {
        padding: 0 16px;
    }

    .nav-container {
        padding: 0 16px;
    }

    .nav-brand {
        font-size: 1.2rem;
    }

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

    .hero-description {
        font-size: 1rem;
    }

    .btn-large {
        padding: 12px 20px;
        font-size: 0.95rem;
    }

    .mockup-content {
        padding: 16px;
    }

    .invoice-item {
        padding: 12px;
        gap: 12px;
    }

    .stat-number {
        font-size: 2.5rem;
    }

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

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

    .features-section,
    .how-it-works,
    .pricing-section,
    .cta-section {
        padding: 60px 0;
    }
}