:root {
    --primary: #3b82f6;
    --primary-dark: #2563eb;
    --secondary: #8b5cf6;
    --dark: #0f172a;
    --darker: #020617;
    --light: #f8fafc;
    --gray: #64748b;
    --text: #334155;
    --text-light: #94a3b8;
    --gradient: linear-gradient(135deg, #3b82f6 0%, #8b5cf6 100%);
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --radius: 12px;
    --radius-sm: 8px;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    color: var(--text);
    background-color: #fff;
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
    font-family: 'Space Grotesk', sans-serif;
    color: var(--dark);
    line-height: 1.2;
}

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

/* Navbar */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    z-index: 1000;
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    padding: 16px 0;
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    color: var(--dark);
    font-family: 'Space Grotesk', sans-serif;
    font-size: 1.25rem;
    font-weight: 600;
}

.logo-icon {
    width: 32px;
    height: 32px;
    color: var(--primary);
}

.nav-links {
    display: flex;
    gap: 32px;
    list-style: none;
    align-items: center;
}

.nav-links a {
    text-decoration: none;
    color: var(--text);
    font-weight: 500;
    font-size: 0.9375rem;
    transition: color 0.2s;
}

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

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}

.mobile-menu-btn span {
    width: 24px;
    height: 2px;
    background: var(--dark);
    border-radius: 2px;
    transition: 0.3s;
}

/* Buttons */
.btn-primary {
    background: var(--primary);
    color: white !important;
    padding: 12px 24px;
    border-radius: var(--radius-sm);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.9375rem;
    border: none;
    cursor: pointer;
    transition: all 0.2s;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-1px);
    box-shadow: var(--shadow);
}

.btn-secondary {
    background: transparent;
    color: var(--text) !important;
    padding: 12px 24px;
    border-radius: var(--radius-sm);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.9375rem;
    border: 1px solid rgba(0, 0, 0, 0.1);
    transition: all 0.2s;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.btn-secondary:hover {
    border-color: var(--primary);
    color: var(--primary) !important;
}

/* Hero */
.hero {
    padding: 140px 0 80px;
    background: linear-gradient(180deg, #f8fafc 0%, #fff 100%);
    min-height: 90vh;
    display: flex;
    align-items: center;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.badge, .section-badge {
    background: rgba(59, 130, 246, 0.1);
    color: var(--primary);
    padding: 6px 14px;
    border-radius: 100px;
    font-size: 0.8125rem;
    font-weight: 600;
    margin-bottom: 20px;
    display: inline-block;
    letter-spacing: 0.02em;
}

.section-badge.light {
    background: rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.9);
}

.hero h1 {
    font-size: 3.5rem;
    margin-bottom: 24px;
    letter-spacing: -0.02em;
}

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

.hero p {
    font-size: 1.125rem;
    color: var(--gray);
    margin-bottom: 32px;
    max-width: 480px;
    line-height: 1.7;
}

.hero-btns {
    display: flex;
    gap: 16px;
}

/* Hero Visual - Logo Showcase */
.hero-visual {
    display: flex;
    align-items: center;
    justify-content: center;
}

.logo-showcase {
    position: relative;
    width: 100%;
    max-width: 400px;
    aspect-ratio: 1;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-logo {
    width: 100%;
    height: 100%;
    animation: float 6s ease-in-out infinite;
}

.logo-text {
    position: absolute;
    display: flex;
    align-items: baseline;
    gap: 4px;
    font-family: 'Space Grotesk', sans-serif;
    font-weight: 700;
}

.logo-text .zp {
    font-size: 2rem;
    color: var(--dark);
}

.logo-text .num {
    font-size: 3rem;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

.pulse-ring {
    animation: pulse 3s ease-out infinite;
    transform-origin: center;
}

.pulse-ring.delay {
    animation-delay: 1.5s;
}

@keyframes pulse {
    0% { transform: scale(1); opacity: 0.6; }
    100% { transform: scale(1.8); opacity: 0; }
}

/* Sections */
.section {
    padding: 100px 0;
}

.section-header {
    text-align: center;
    max-width: 600px;
    margin: 0 auto 60px;
}

.section-header h2 {
    font-size: 2.5rem;
    margin-bottom: 16px;
    letter-spacing: -0.02em;
}

.section-header p {
    font-size: 1.125rem;
    color: var(--gray);
}

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

.card {
    background: #fff;
    border: 1px solid rgba(0, 0, 0, 0.06);
    border-radius: var(--radius);
    padding: 32px;
    transition: all 0.3s ease;
}

.card:hover {
    border-color: rgba(59, 130, 246, 0.2);
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}

.icon-box {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.1) 0%, rgba(139, 92, 246, 0.1) 100%);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
}

.icon-box svg {
    width: 24px;
    height: 24px;
    color: var(--primary);
}

.card h3 {
    font-size: 1.25rem;
    margin-bottom: 12px;
}

.card p {
    color: var(--gray);
    font-size: 0.9375rem;
    line-height: 1.7;
}

/* Dark Section (About) */
.dark-bg {
    background: var(--darker);
}

.dark-bg h2 {
    color: #fff;
}

.dark-bg p {
    color: var(--text-light);
}

.split-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.about-content {
    max-width: 720px;
    margin: 0 auto;
    text-align: center;
}

.about-content h2 {
    font-size: 2.5rem;
    margin-bottom: 24px;
    letter-spacing: -0.02em;
}

.about-content p {
    margin-bottom: 16px;
    line-height: 1.8;
    font-size: 1.0625rem;
}

.about-content .expertise-tags {
    justify-content: center;
}

.content-side h2 {
    font-size: 2.5rem;
    margin-bottom: 24px;
    letter-spacing: -0.02em;
}

.content-side p {
    margin-bottom: 16px;
    line-height: 1.7;
}

.expertise-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 32px;
}

.tag {
    background: rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.8);
    padding: 8px 16px;
    border-radius: 100px;
    font-size: 0.875rem;
    font-weight: 500;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

/* FAQ */
.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    border-bottom: 1px solid rgba(0, 0, 0, 0.06);
    padding: 24px 0;
}

.faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
}

.faq-question h4 {
    font-size: 1.125rem;
    font-weight: 600;
}

.faq-icon {
    width: 20px;
    height: 20px;
    color: var(--gray);
    transition: transform 0.3s;
}

.faq-answer {
    color: var(--gray);
    margin-top: 16px;
    line-height: 1.7;
}

/* Contact */
.contact-section {
    background: var(--light);
}

.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    background: #fff;
    padding: 60px;
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
}

.contact-info h2 {
    font-size: 2rem;
    margin-bottom: 16px;
    margin-top: 16px;
}

.contact-info > p {
    color: var(--gray);
    margin-bottom: 40px;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.info-item {
    display: flex;
    align-items: flex-start;
    gap: 16px;
}

.info-item svg {
    width: 24px;
    height: 24px;
    color: var(--primary);
    flex-shrink: 0;
    margin-top: 2px;
}

.info-item .label {
    display: block;
    font-size: 0.75rem;
    color: var(--text-light);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 4px;
}

.info-item .value {
    font-weight: 500;
    color: var(--text);
}

/* Form */
.contact-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    font-size: 0.875rem;
    color: var(--text);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 14px 16px;
    border: 1px solid rgba(0, 0, 0, 0.1);
    border-radius: var(--radius-sm);
    font-family: inherit;
    font-size: 0.9375rem;
    transition: all 0.2s;
    background: var(--light);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--text-light);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
    background: #fff;
}

.full-width {
    width: 100%;
}

/* Footer */
footer {
    background: var(--darker);
    padding: 80px 0 40px;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    padding-bottom: 60px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    margin-bottom: 40px;
}

.footer-brand .logo {
    color: #fff;
    margin-bottom: 16px;
}

.footer-brand .logo-icon {
    color: var(--primary);
}

.footer-brand p {
    color: var(--text-light);
    font-size: 0.9375rem;
    max-width: 280px;
}

.footer-links {
    display: flex;
    gap: 80px;
}

.link-group h4 {
    color: #fff;
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 20px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.link-group a {
    display: block;
    color: var(--text-light);
    text-decoration: none;
    font-size: 0.9375rem;
    margin-bottom: 12px;
    transition: color 0.2s;
}

.link-group a:hover {
    color: #fff;
}

.footer-bottom {
    text-align: center;
}

.footer-bottom p {
    color: var(--text-light);
    font-size: 0.875rem;
}

/* Responsive */
@media (max-width: 1024px) {
    .hero-content,
    .split-layout,
    .contact-wrapper {
        grid-template-columns: 1fr;
        gap: 60px;
    }
    
    .hero {
        padding-top: 120px;
        min-height: auto;
    }
    
    .logo-showcase {
        max-width: 300px;
        margin: 0 auto;
    }
    
    .grid-3 {
        grid-template-columns: 1fr;
        gap: 24px;
    }
    
    .contact-wrapper {
        padding: 40px;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background: #fff;
        flex-direction: column;
        padding: 24px;
        box-shadow: var(--shadow-lg);
        gap: 16px;
    }
    
    .nav-links.active {
        display: flex;
    }
    
    .mobile-menu-btn {
        display: flex;
    }
    
    .hero h1 {
        font-size: 2.5rem;
    }
    
    .section {
        padding: 60px 0;
    }
    
    .section-header h2,
    .content-side h2,
    .contact-info h2 {
        font-size: 2rem;
    }
    
    .footer-content {
        flex-direction: column;
        gap: 40px;
    }
    
    .footer-links {
        gap: 40px;
    }
    
    .contact-wrapper {
        padding: 24px;
        gap: 40px;
    }
}