:root {
    --primary: #2563eb;
    --primary-dark: #1d4ed8;
    --secondary: #0f172a;
    --accent: #f59e0b;
    --light: #f8fafc;
    --gray: #64748b;
    --success: #10b981;
    --white: #ffffff;
}

* { box-sizing: border-box; }

body { 
    font-family: 'Segoe UI', system-ui, sans-serif; 
    margin: 0; 
    line-height: 1.6; 
    color: var(--secondary); 
    background: #fff; 
    overflow-x: hidden;
}

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

h1, h2, h3, h4 { margin-top: 0; line-height: 1.2; }

a { text-decoration: none; color: inherit; }

/* Buttons */
.btn { 
    display: inline-block; 
    padding: 12px 28px; 
    border-radius: 8px; 
    font-weight: 600; 
    transition: all 0.3s ease; 
    cursor: pointer;
    text-align: center;
    border: 2px solid transparent;
}

.btn-primary { 
    background: var(--primary); 
    color: white; 
    box-shadow: 0 4px 14px rgba(37, 99, 235, 0.3);
}

.btn-primary:hover { 
    background: var(--primary-dark); 
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(37, 99, 235, 0.4);
}

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

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

.btn-white {
    background: white;
    color: var(--primary);
}
.btn-white:hover {
    background: #f1f5f9;
}

.btn-cta-large {
    font-size: 1.1rem;
    padding: 16px 32px;
}

/* Header */
header { 
    background: rgba(255, 255, 255, 0.95); 
    backdrop-filter: blur(10px);
    padding: 15px 0; 
    position: fixed; 
    width: 100%; 
    top: 0; 
    z-index: 1000; 
    border-bottom: 1px solid #e2e8f0;
}

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

.logo { 
    font-size: 1.5rem; 
    font-weight: 800; 
    color: var(--primary); 
    letter-spacing: -0.5px;
    display: flex;
    align-items: center;
    gap: 8px;
}

/* Hero Section */
.hero { 
    padding: 140px 0 80px; 
    background: linear-gradient(180deg, #f0f9ff 0%, #ffffff 100%); 
    text-align: center; 
    position: relative;
}

.hero h1 { 
    font-size: 3rem; 
    margin-bottom: 20px; 
    color: var(--secondary);
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
    letter-spacing: -1px;
}

.hero p { 
    font-size: 1.25rem; 
    color: var(--gray); 
    margin-bottom: 40px; 
    max-width: 700px; 
    margin-left: auto; 
    margin-right: auto; 
}

.hero-buttons {
    display: flex;
    gap: 15px;
    justify-content: center;
    margin-bottom: 60px;
}

.hero-mockup {
    background: white;
    border-radius: 12px;
    box-shadow: 0 20px 50px -10px rgba(0,0,0,0.15);
    max-width: 1000px;
    margin: 0 auto;
    overflow: hidden;
    border: 1px solid #e2e8f0;
}

.hero-mockup img {
    width: 100%;
    height: auto;
    display: block;
}

/* Section Headers */
.section-header {
    text-align: center;
    margin-bottom: 60px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.section-header h2 {
    font-size: 2.25rem;
    margin-bottom: 15px;
    color: var(--secondary);
}

.section-header p {
    font-size: 1.15rem;
    color: var(--gray);
}

/* Problems Section */
.problems { 
    padding: 100px 0; 
    background: white; 
}

.problems-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.problem-card {
    padding: 30px;
    border-left: 4px solid #ef4444;
    background: #fff;
    box-shadow: 0 10px 30px -10px rgba(0,0,0,0.05);
    border-radius: 0 12px 12px 0;
    transition: transform 0.3s ease;
    border: 1px solid #f1f5f9;
    border-left-width: 4px;
}

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

.problem-card h3 {
    color: #ef4444;
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.25rem;
    margin-bottom: 10px;
}

/* Solution Section */
.solution {
    padding: 100px 0;
    background: var(--secondary);
    color: white;
}

.solution h2 {
    color: white;
}

.solution-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-top: 60px;
}

.solution-item {
    text-align: center;
    padding: 20px;
}

.solution-icon {
    font-size: 3rem;
    margin-bottom: 20px;
    background: rgba(255,255,255,0.1);
    width: 80px;
    height: 80px;
    line-height: 80px;
    border-radius: 50%;
    margin-left: auto;
    margin-right: auto;
}

.solution-item h3 {
    margin-bottom: 15px;
    font-size: 1.35rem;
}

.solution-item p {
    color: #94a3b8;
    line-height: 1.7;
}

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

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

.feature-card {
    background: white;
    padding: 30px;
    border-radius: 12px;
    border: 1px solid #e2e8f0;
    transition: 0.3s;
    box-shadow: 0 4px 6px -1px rgba(0,0,0,0.05);
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 25px -5px rgba(0,0,0,0.1);
    border-color: var(--primary);
}

.feature-card h3 {
    font-size: 1.25rem;
    margin-bottom: 10px;
    color: var(--secondary);
}

.feature-card p {
    color: var(--gray);
    font-size: 1rem;
    margin: 0;
}

/* Pricing Section */
.pricing {
    padding: 100px 0;
    background: white;
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    max-width: 1100px;
    margin: 0 auto;
    align-items: center; /* Aligns cards vertically center if different heights */
}

.plan-card {
    background: white;
    padding: 40px 30px;
    border-radius: 16px;
    box-shadow: 0 10px 40px -10px rgba(0,0,0,0.08);
    border: 1px solid #e2e8f0;
    text-align: center;
    position: relative;
    transition: transform 0.3s ease;
}

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

.plan-card.featured {
    border: 2px solid var(--primary);
    box-shadow: 0 20px 50px -10px rgba(37, 99, 235, 0.2);
    transform: scale(1.05);
    z-index: 10;
}

.plan-card.featured:hover {
    transform: scale(1.05) translateY(-5px);
}

.badge {
    position: absolute;
    top: -15px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--primary);
    color: white;
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 700;
    letter-spacing: 0.5px;
    text-transform: uppercase;
}

.price {
    font-size: 3.5rem;
    font-weight: 800;
    color: var(--secondary);
    margin: 20px 0 5px;
    line-height: 1;
}

.period {
    display: block;
    font-size: 1rem;
    color: var(--gray);
    margin-bottom: 30px;
}

.features-list {
    list-style: none;
    padding: 0;
    margin: 30px 0;
    text-align: left;
}

.features-list li {
    padding: 12px 0;
    border-bottom: 1px solid #f1f5f9;
    color: var(--gray);
    display: flex;
    align-items: center;
    gap: 12px;
}

.features-list li:last-child {
    border-bottom: none;
}

.features-list li:before {
    content: "✓";
    color: var(--success);
    font-weight: 900;
    font-size: 1.1rem;
}

/* Testimonials */
.testimonials {
    padding: 100px 0;
    background: #f8fafc;
}

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

.testimonial-card {
    background: white;
    padding: 40px;
    border-radius: 12px;
    box-shadow: 0 4px 6px -1px rgba(0,0,0,0.05);
}

.testimonial-text {
    font-size: 1.1rem;
    color: var(--secondary);
    font-style: italic;
    margin-bottom: 25px;
    line-height: 1.6;
}

.client-info {
    display: flex;
    align-items: center;
    gap: 15px;
}

.client-avatar {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background-color: #e2e8f0;
}

.client-logos {
    display: flex;
    justify-content: center;
    gap: 50px;
    margin-top: 80px;
    flex-wrap: wrap;
    opacity: 0.6;
    filter: grayscale(100%);
}

.client-logo-text {
    font-weight: 800;
    font-size: 1.5rem;
    color: #cbd5e1;
}

/* Final CTA */
.final-cta {
    padding: 100px 0;
    background: var(--primary);
    color: white;
    text-align: center;
}

.final-cta h2 {
    font-size: 2.5rem;
    margin-bottom: 20px;
}

.final-cta p {
    font-size: 1.25rem;
    margin-bottom: 40px;
    opacity: 0.9;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* Footer */
footer {
    background: white;
    padding: 60px 0 30px;
    border-top: 1px solid #e2e8f0;
    text-align: center;
    color: var(--gray);
}

footer a {
    color: var(--gray);
    transition: color 0.2s;
}

footer a:hover {
    color: var(--primary);
}

/* Responsive */
@media (max-width: 768px) {
    .hero h1 { font-size: 2.5rem; }
    .hero p { font-size: 1.1rem; }
    .hero-buttons { flex-direction: column; }
    .plan-card.featured { transform: none; }
    .plan-card.featured:hover { transform: translateY(-5px); }
    .section-header h2 { font-size: 2rem; }
}