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

:root {
    --primary: #0EA5E9;
    --primary-dark: #0284C7;
    --secondary: #2563EB;
    --dark: #0F172A;
    --gray: #64748B;
    --light: #F8FAFC;
    --success: #10B981;
    --warning: #F59E0B;
    --gradient: linear-gradient(135deg, #0EA5E9 0%, #2563EB 100%);
}

body {
    font-family: 'Assistant', sans-serif;
    background: var(--light);
    color: var(--dark);
    line-height: 1.6;
}

/* Language Switcher */
.lang-switch {
    position: fixed;
    top: 1.5rem;
    left: 2rem;
    z-index: 1001;
    display: flex;
    gap: 0.5rem;
    background: white;
    padding: 0.5rem;
    border-radius: 8px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.08);
}

.lang-btn {
    padding: 0.5rem 1rem;
    background: transparent;
    border: none;
    cursor: pointer;
    font-weight: 600;
    font-size: 0.85rem;
    border-radius: 6px;
    transition: all 0.3s;
    font-family: 'Heebo', sans-serif;
}

.lang-btn.active {
    background: var(--primary);
    color: white;
}

/* Navigation */
nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(10px);
    z-index: 1000;
    border-bottom: 1px solid rgba(14, 165, 233, 0.1);
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 1.5rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.8rem;
    font-weight: 900;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-family: 'Heebo', sans-serif;
    letter-spacing: -0.5px;
}

.nav-links {
    display: flex;
    gap: 3rem;
    list-style: none;
}

.nav-links a {
    text-decoration: none;
    color: var(--dark);
    font-weight: 600;
    transition: color 0.3s;
    font-size: 0.95rem;
}

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

.cta-nav {
    background: var(--gradient);
    color: white;
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 700;
    transition: all 0.3s;
    font-size: 0.9rem;
}

.cta-nav:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(14, 165, 233, 0.3);
}

/* Hero */
.hero {
    padding: 10rem 2rem 6rem;
    background: var(--dark);
    color: white;
    margin-top: 80px;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -10%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(14, 165, 233, 0.15), transparent);
    animation: pulse 8s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); opacity: 0.15; }
    50% { transform: scale(1.1); opacity: 0.25; }
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    text-align: center;
    position: relative;
    z-index: 2;
}

.hero-badge {
    display: inline-block;
    background: rgba(14, 165, 233, 0.2);
    color: var(--primary);
    padding: 0.5rem 1.5rem;
    border-radius: 20px;
    font-weight: 700;
    font-size: 0.85rem;
    margin-bottom: 2rem;
    border: 1px solid rgba(14, 165, 233, 0.3);
}

.hero h1 {
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: 900;
    margin-bottom: 1.5rem;
    line-height: 1.1;
    font-family: 'Heebo', sans-serif;
}

.hero-highlight {
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-tagline {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    font-family: 'Heebo', sans-serif;
    letter-spacing: 2px;
}

.hero p {
    font-size: 1.25rem;
    max-width: 700px;
    margin: 0 auto 3rem;
    opacity: 0.9;
    line-height: 1.8;
}

.hero-cta {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.btn-primary {
    background: var(--gradient);
    color: white;
    padding: 1.2rem 3rem;
    border-radius: 10px;
    text-decoration: none;
    font-weight: 700;
    font-size: 1.1rem;
    transition: all 0.3s;
    display: inline-block;
    box-shadow: 0 4px 15px rgba(14, 165, 233, 0.3);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(14, 165, 233, 0.4);
}

.btn-secondary {
    background: transparent;
    color: white;
    padding: 1.2rem 3rem;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 10px;
    text-decoration: none;
    font-weight: 700;
    font-size: 1.1rem;
    transition: all 0.3s;
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: white;
}

.stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 3rem;
    max-width: 900px;
    margin: 5rem auto 0;
    padding-top: 3rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.stat {
    text-align: center;
}

.stat-number {
    font-size: 3.5rem;
    font-weight: 900;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: block;
    margin-bottom: 0.5rem;
    font-family: 'Heebo', sans-serif;
}

.stat-label {
    font-size: 0.95rem;
    opacity: 0.8;
}

/* Sections */
.container {
    max-width: 1200px;
    margin: 0 auto;
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-label {
    color: var(--primary);
    font-weight: 800;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 1rem;
    font-family: 'Heebo', sans-serif;
}

.section-title {
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 900;
    margin-bottom: 1rem;
    color: var(--dark);
    font-family: 'Heebo', sans-serif;
}

.section-description {
    font-size: 1.2rem;
    color: var(--gray);
    max-width: 700px;
    margin: 0 auto;
}

/* Problem Section */
.problem {
    padding: 6rem 2rem;
    background: white;
}

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

.problem-card {
    background: var(--light);
    padding: 2.5rem;
    border-radius: 16px;
    border-right: 4px solid var(--primary);
    transition: all 0.3s;
}

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

.problem-card h3 {
    font-size: 1.4rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--dark);
}

.problem-stat {
    font-size: 2.5rem;
    font-weight: 900;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0.5rem;
    font-family: 'Heebo', sans-serif;
}

/* Pricing */
.pricing {
    padding: 6rem 2rem;
    background: var(--light);
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    max-width: 1300px;
    margin: 0 auto;
}

.pricing-card {
    background: white;
    border-radius: 20px;
    padding: 3rem 2rem;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    position: relative;
    transition: all 0.3s;
    border: 2px solid transparent;
}

.pricing-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.15);
}

.pricing-card.featured {
    border: 2px solid var(--primary);
    transform: scale(1.05);
    box-shadow: 0 10px 40px rgba(14, 165, 233, 0.2);
}

.pricing-badge {
    position: absolute;
    top: -15px;
    right: 20px;
    background: var(--gradient);
    color: white;
    padding: 0.6rem 1.5rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 800;
    box-shadow: 0 4px 15px rgba(14, 165, 233, 0.3);
}

.pricing-name {
    font-size: 1.5rem;
    font-weight: 900;
    margin-bottom: 0.5rem;
    font-family: 'Heebo', sans-serif;
}

.pricing-desc {
    color: var(--gray);
    font-size: 0.95rem;
    margin-bottom: 2rem;
}

.pricing-price {
    margin-bottom: 2rem;
}

.price-old {
    font-size: 1.2rem;
    text-decoration: line-through;
    color: var(--gray);
}

.price-new {
    font-size: 3.5rem;
    font-weight: 900;
    color: var(--dark);
    font-family: 'Heebo', sans-serif;
}

.price-currency {
    font-size: 1.8rem;
}

.pricing-features {
    list-style: none;
    margin-bottom: 2rem;
}

.pricing-features li {
    padding: 0.75rem 0;
    border-bottom: 1px solid #F1F5F9;
    font-size: 0.95rem;
}

.pricing-features li:before {
    content: "✓";
    color: var(--success);
    font-weight: bold;
    margin-left: 0.5rem;
}

.pricing-cta {
    width: 100%;
    padding: 1.2rem;
    background: var(--gradient);
    color: white;
    border: none;
    border-radius: 10px;
    font-weight: 800;
    cursor: pointer;
    transition: all 0.3s;
    font-size: 1rem;
}

.pricing-cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(14, 165, 233, 0.3);
}

/* ROI Calculator */
.roi-calculator {
    padding: 6rem 2rem;
    background: white;
}

.calculator-container {
    max-width: 800px;
    margin: 0 auto;
    background: var(--light);
    padding: 3rem;
    border-radius: 20px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
}

.calc-input-group {
    margin-bottom: 2rem;
}

.calc-input-group label {
    display: block;
    font-weight: 700;
    margin-bottom: 0.5rem;
    font-size: 1rem;
}

.calc-input-group input {
    width: 100%;
    padding: 1.2rem;
    border: 2px solid #E2E8F0;
    border-radius: 10px;
    font-size: 1.1rem;
    transition: all 0.3s;
    font-family: 'Heebo', sans-serif;
}

.calc-input-group input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(14, 165, 233, 0.1);
}

.calc-result {
    background: var(--gradient);
    color: white;
    padding: 2.5rem;
    border-radius: 16px;
    text-align: center;
    margin-top: 2rem;
    box-shadow: 0 10px 30px rgba(14, 165, 233, 0.3);
}

.calc-result-number {
    font-size: 4rem;
    font-weight: 900;
    margin-bottom: 0.5rem;
    font-family: 'Heebo', sans-serif;
}

/* Case Studies */
.case-studies {
    padding: 6rem 2rem;
    background: var(--dark);
    color: white;
}

.cases-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    max-width: 1300px;
    margin: 0 auto;
}

.case-card {
    background: rgba(255, 255, 255, 0.05);
    padding: 2.5rem;
    border-radius: 16px;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: all 0.3s;
}

.case-card:hover {
    background: rgba(255, 255, 255, 0.08);
    transform: translateY(-5px);
}

.case-logo {
    font-size: 2rem;
    font-weight: 900;
    margin-bottom: 1.5rem;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-family: 'Heebo', sans-serif;
}

.case-metric {
    font-size: 3rem;
    font-weight: 900;
    color: var(--success);
    margin-bottom: 0.5rem;
    font-family: 'Heebo', sans-serif;
}

.case-label {
    font-size: 0.9rem;
    opacity: 0.8;
    margin-bottom: 1.5rem;
}

.case-quote {
    font-style: italic;
    opacity: 0.9;
    line-height: 1.7;
    margin-bottom: 1rem;
}

.case-author {
    font-weight: 700;
    font-size: 0.9rem;
}

/* Process */
.process {
    padding: 6rem 2rem;
    background: white;
}

.process-steps {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
    max-width: 1300px;
    margin: 0 auto;
}

.process-step {
    text-align: center;
    position: relative;
}

.process-step::after {
    content: "←";
    position: absolute;
    top: 30px;
    right: calc(100% + 0.5rem);
    font-size: 2rem;
    color: var(--primary);
}

.process-step:first-child::after {
    display: none;
}

.step-number {
    width: 70px;
    height: 70px;
    background: var(--gradient);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    font-weight: 900;
    margin: 0 auto 1.5rem;
    box-shadow: 0 5px 20px rgba(14, 165, 233, 0.3);
    font-family: 'Heebo', sans-serif;
}

.step-title {
    font-weight: 800;
    margin-bottom: 0.5rem;
    font-size: 1.1rem;
}

.step-time {
    color: var(--primary);
    font-size: 0.9rem;
    font-weight: 700;
}

/* Final CTA */
.final-cta {
    padding: 8rem 2rem;
    background: var(--gradient);
    color: white;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.final-cta::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -10%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.1), transparent);
    animation: pulse 8s ease-in-out infinite;
}

.final-cta h2 {
    font-size: clamp(2rem, 5vw, 4rem);
    font-weight: 900;
    margin-bottom: 1.5rem;
    font-family: 'Heebo', sans-serif;
    position: relative;
    z-index: 2;
}

.final-cta p {
    font-size: 1.4rem;
    margin-bottom: 2.5rem;
    opacity: 0.95;
    position: relative;
    z-index: 2;
}

/* Footer */
footer {
    background: var(--dark);
    color: white;
    padding: 3rem 2rem;
    text-align: center;
}

footer p {
    opacity: 0.7;
    font-size: 0.9rem;
}

.footer-brand {
    font-size: 1.5rem;
    font-weight: 900;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 1rem;
    font-family: 'Heebo', sans-serif;
}

/* Language content toggle */
.lang-content {
    display: none;
}

.lang-content.active {
    display: block;
}

/* Responsive */
@media (max-width: 968px) {
    .lang-switch {
        top: 1rem;
        left: 1rem;
    }

    .stats,
    .problem-grid,
    .pricing-grid,
    .cases-grid,
    .process-steps {
        grid-template-columns: 1fr;
    }

    .nav-links {
        display: none;
    }

    .process-step::after {
        display: none;
    }

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

    .hero {
        padding: 8rem 1.5rem 4rem;
    }
}