/* Reset and Variables */
:root {
    --primary: #7c3aed;
    --primary-dark: #6d28d9;
    --primary-light: #a78bfa;
    --secondary: #10b981;
    --accent: #f59e0b;
    --dark: #0f172a;
    --dark-light: #1e293b;
    --gray: #64748b;
    --gray-light: #94a3b8;
    --light: #f1f5f9;
    --white: #ffffff;
    --gradient: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    --shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.15);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--dark);
    color: var(--white);
    line-height: 1.6;
}

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

/* Typography */
h1, h2, h3, h4 {
    font-weight: 700;
    line-height: 1.2;
}

h1 { font-size: 3.5rem; }
h2 { font-size: 2.5rem; }
h3 { font-size: 1.5rem; }

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 28px;
    font-size: 1rem;
    font-weight: 600;
    border-radius: 12px;
    text-decoration: none;
    transition: all 0.3s ease;
    cursor: pointer;
    border: none;
}

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

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(124, 58, 237, 0.4);
}

.btn-outline {
    background: transparent;
    color: var(--white);
    border: 2px solid var(--gray-light);
}

.btn-outline:hover {
    border-color: var(--primary);
    color: var(--primary-light);
}

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

.btn-white:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-lg {
    padding: 16px 36px;
    font-size: 1.1rem;
}

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(15, 23, 42, 0.9);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 80px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--white);
}

.logo-icon {
    font-size: 2rem;
}

.logo-accent {
    color: var(--primary-light);
}

.nav {
    display: flex;
    gap: 32px;
}

.nav a {
    color: var(--gray-light);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

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

.header-actions {
    display: flex;
    align-items: center;
    gap: 20px;
}

.lang-switcher {
    display: flex;
    background: var(--dark-light);
    border-radius: 8px;
    padding: 4px;
}

.lang-btn {
    padding: 8px 16px;
    background: transparent;
    border: none;
    color: var(--gray-light);
    cursor: pointer;
    border-radius: 6px;
    font-weight: 500;
    transition: all 0.3s ease;
}

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

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 10px;
}

.mobile-menu-btn span {
    width: 24px;
    height: 2px;
    background: var(--white);
    transition: all 0.3s ease;
}

/* Hero Section */
.hero {
    padding: 160px 0 100px;
    background: linear-gradient(135deg, var(--dark) 0%, var(--dark-light) 100%);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 70%;
    height: 200%;
    background: radial-gradient(circle, rgba(124, 58, 237, 0.15) 0%, transparent 60%);
}

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

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 700px;
    margin: 0 auto;
}

.hero h1 {
    margin-bottom: 24px;
    background: linear-gradient(135deg, var(--white) 0%, var(--gray-light) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--gray-light);
    margin-bottom: 40px;
    margin-left: auto;
    margin-right: auto;
    max-width: 600px;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    margin-bottom: 60px;
    justify-content: center;
}

.hero-stats {
    display: flex;
    gap: 48px;
    justify-content: center;
}

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

.stat-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-light);
}

.stat-label {
    color: var(--gray-light);
    font-size: 0.9rem;
}

/* Hero Card */
.hero-visual {
    display: flex;
    justify-content: center;
    position: relative;
    z-index: 1;
}

.hero-card {
    background: linear-gradient(145deg, var(--dark-light), var(--dark));
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 24px;
    padding: 32px;
    width: 100%;
    max-width: 360px;
    box-shadow: var(--shadow-lg);
}

.card-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 32px;
}

.card-icon {
    font-size: 2rem;
}

.card-title {
    font-weight: 600;
    font-size: 1.1rem;
}

.card-balance {
    margin-bottom: 32px;
}

.balance-label {
    display: block;
    color: var(--gray-light);
    font-size: 0.9rem;
    margin-bottom: 8px;
}

.balance-value {
    font-size: 2.5rem;
    font-weight: 700;
}

.balance-value small {
    font-size: 1rem;
    color: var(--gray-light);
}

.card-actions {
    display: flex;
    gap: 12px;
}

.card-btn {
    flex: 1;
    padding: 14px;
    background: var(--gradient);
    border: none;
    border-radius: 12px;
    color: var(--white);
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.card-btn:hover {
    transform: translateY(-2px);
}

/* Sections */
.section-title {
    text-align: center;
    margin-bottom: 16px;
}

.section-subtitle {
    text-align: center;
    color: var(--gray-light);
    max-width: 600px;
    margin: 0 auto 60px;
}

/* Features Section */
.features {
    padding: 100px 0;
    background: var(--dark-light);
}

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

.feature-card {
    background: var(--dark);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 20px;
    padding: 32px;
    transition: all 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-8px);
    border-color: var(--primary);
    box-shadow: 0 20px 40px rgba(124, 58, 237, 0.2);
}

.feature-icon {
    font-size: 2.5rem;
    margin-bottom: 20px;
}

.feature-card h3 {
    margin-bottom: 12px;
}

.feature-card p {
    color: var(--gray-light);
}

/* Security Section */
.security {
    padding: 100px 0;
    background: var(--dark);
}

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

.security-text h2 {
    margin-bottom: 24px;
}

.security-text > p {
    color: var(--gray-light);
    margin-bottom: 32px;
}

.security-list {
    list-style: none;
}

.security-list li {
    padding: 12px 0;
    padding-left: 32px;
    position: relative;
    color: var(--gray-light);
}

.security-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--secondary);
    font-weight: 700;
}

.security-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

/* Robot Animation */
.robot-container {
    display: flex;
    justify-content: center;
    align-items: center;
    animation: float 3s ease-in-out infinite;
}

.robot-img {
    max-width: 320px;
    height: auto;
    border-radius: 20px;
    filter: drop-shadow(0 20px 40px rgba(124, 58, 237, 0.4));
}

/* Floating animation */
@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-15px); }
}

.badge-icon {
    font-size: 4rem;
}

.badge-text {
    font-weight: 700;
    font-size: 1.2rem;
}

/* Compliance Section */
.compliance {
    padding: 100px 0;
    background: var(--dark-light);
}

.compliance-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
    margin-bottom: 60px;
}

.compliance-card {
    background: var(--dark);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 20px;
    padding: 32px;
}

.compliance-icon {
    font-size: 2.5rem;
    margin-bottom: 20px;
}

.compliance-card h3 {
    margin-bottom: 12px;
}

.compliance-card p {
    color: var(--gray-light);
}

.compliance-process {
    background: var(--dark);
    border-radius: 20px;
    padding: 48px;
}

.compliance-process h3 {
    text-align: center;
    margin-bottom: 40px;
}

.process-steps {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
}

.process-step {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.step-number {
    width: 48px;
    height: 48px;
    background: var(--gradient);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.2rem;
    margin-bottom: 16px;
}

.step-content h4 {
    margin-bottom: 8px;
}

.step-content p {
    color: var(--gray-light);
    font-size: 0.9rem;
}

.process-arrow {
    color: var(--primary-light);
    font-size: 2rem;
    padding-top: 10px;
}

/* FAQ Section */
.faq {
    padding: 100px 0;
    background: var(--dark);
}

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

.faq-item {
    background: var(--dark-light);
    border-radius: 16px;
    margin-bottom: 16px;
    overflow: hidden;
}

.faq-question {
    width: 100%;
    padding: 24px;
    background: none;
    border: none;
    color: var(--white);
    font-size: 1.1rem;
    font-weight: 600;
    text-align: left;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.faq-question::after {
    content: '+';
    font-size: 1.5rem;
    color: var(--primary-light);
    transition: transform 0.3s ease;
}

.faq-item.active .faq-question::after {
    transform: rotate(45deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.faq-item.active .faq-answer {
    max-height: 300px;
}

.faq-answer p {
    padding: 0 24px 24px;
    color: var(--gray-light);
}

/* CTA Section */
.cta {
    padding: 100px 0;
    background: var(--gradient);
}

.cta-content {
    text-align: center;
}

.cta h2 {
    margin-bottom: 16px;
}

.cta p {
    margin-bottom: 32px;
    opacity: 0.9;
}

/* Footer */
.footer {
    padding: 80px 0 40px;
    background: var(--dark);
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

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

.footer-brand .logo-icon {
    font-size: 2rem;
}

.footer-brand .logo-text {
    font-size: 1.5rem;
    font-weight: 700;
}

.footer-brand p {
    color: var(--gray-light);
    margin-top: 16px;
}

.footer-links h4 {
    margin-bottom: 24px;
    color: var(--white);
}

.footer-links a {
    display: block;
    color: var(--gray-light);
    text-decoration: none;
    margin-bottom: 12px;
    transition: color 0.3s ease;
}

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

.footer-bottom {
    padding-top: 40px;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    text-align: center;
    color: var(--gray);
}

/* Responsive */
@media (max-width: 1024px) {
    h1 { font-size: 2.5rem; }
    h2 { font-size: 2rem; }

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

    .hero-subtitle {
        margin: 0 auto 40px;
    }

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

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

    .hero-visual {
        margin-top: 40px;
    }

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

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

    .security-visual {
        order: -1;
        margin-bottom: 40px;
    }

    .security-list li {
        text-align: left;
    }

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

@media (max-width: 768px) {
    .nav {
        display: none;
    }

    .mobile-menu-btn {
        display: flex;
    }

    .header-actions .btn {
        display: none;
    }

    h1 { font-size: 2rem; }

    .hero {
        padding: 120px 0 60px;
    }

    .hero-stats {
        flex-direction: column;
        gap: 24px;
    }

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

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

    .process-steps {
        flex-direction: column;
        gap: 32px;
    }

    .process-arrow {
        transform: rotate(90deg);
    }

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