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

:root {
    --primary-color: #ff6b35;
    --secondary-color: #2a9d8f;
    --accent-color: #f4a261;
    --dark-bg: #1a1a2e;
    --light-bg: #f8f9fa;
    --text-dark: #2d3436;
    --text-light: #636e72;
    --white: #ffffff;
    --border-color: #e1e8ed;
    --success: #00b894;
    --warning: #fdcb6e;
    --shadow-sm: 0 2px 8px rgba(0,0,0,0.08);
    --shadow-md: 0 4px 16px rgba(0,0,0,0.12);
    --shadow-lg: 0 8px 32px rgba(0,0,0,0.16);
    --transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

body {
    font-family: 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.7;
    color: var(--text-dark);
    background: var(--light-bg);
    overflow-x: hidden;
}

.container {
    max-width: 1240px;
    margin: 0 auto;
    padding: 0 24px;
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

.header {
    background: linear-gradient(135deg, var(--dark-bg) 0%, #16213e 100%);
    padding: 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: var(--shadow-md);
}

.navbar {
    padding: 18px 0;
}

.nav-wrapper {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 32px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 28px;
    font-weight: 700;
    color: var(--white);
}

.logo i {
    color: var(--primary-color);
    font-size: 32px;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 8px;
    align-items: center;
}

.nav-menu li a {
    color: var(--white);
    padding: 10px 20px;
    border-radius: 8px;
    font-weight: 500;
    font-size: 15px;
    position: relative;
}

.nav-menu li a::after {
    content: '';
    position: absolute;
    bottom: 8px;
    left: 20px;
    right: 20px;
    height: 2px;
    background: var(--primary-color);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.nav-menu li a:hover {
    background: rgba(255, 107, 53, 0.1);
}

.nav-menu li a:hover::after {
    transform: scaleX(1);
}

.nav-cta .btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    color: var(--white);
    padding: 12px 28px;
    border-radius: 25px;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    box-shadow: 0 4px 15px rgba(255, 107, 53, 0.3);
}

.nav-cta .btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(255, 107, 53, 0.4);
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.mobile-menu-toggle span {
    width: 26px;
    height: 3px;
    background: var(--white);
    border-radius: 2px;
    transition: var(--transition);
}

.hero-section {
    background: linear-gradient(135deg, #1a1a2e 0%, #2d4059 50%, #16213e 100%);
    padding: 100px 0 80px;
    position: relative;
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -10%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(255, 107, 53, 0.15) 0%, transparent 70%);
    border-radius: 50%;
}

.hero-content {
    max-width: 720px;
    margin: 0 auto;
    text-align: center;
    position: relative;
    z-index: 2;
}

.hero-content h1 {
    font-size: 54px;
    color: var(--white);
    margin-bottom: 24px;
    font-weight: 800;
    line-height: 1.2;
    letter-spacing: -0.5px;
}

.hero-content .subtitle {
    font-size: 20px;
    color: rgba(255, 255, 255, 0.85);
    margin-bottom: 18px;
    font-weight: 500;
}

.hero-content p {
    font-size: 17px;
    color: rgba(255, 255, 255, 0.75);
    margin-bottom: 40px;
    line-height: 1.8;
}

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

.btn-large {
    padding: 16px 40px;
    border-radius: 30px;
    font-size: 16px;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    transition: var(--transition);
}

.btn-large.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    color: var(--white);
    box-shadow: 0 8px 25px rgba(255, 107, 53, 0.35);
}

.btn-large.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 35px rgba(255, 107, 53, 0.45);
}

.btn-large.btn-secondary {
    background: #35b3ff;
    color: #ffffff;
    border: 2px solid rgba(255, 255, 255, 0.3);
    backdrop-filter: blur(10px);
}

.btn-large.btn-secondary:hover {
    background: #000000;
    border-color: #35b3ff;
    transform: translateY(-3px);
}

.features-section {
    padding: 90px 0;
    background: var(--white);
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-header h2 {
    font-size: 42px;
    color: var(--text-dark);
    margin-bottom: 16px;
    font-weight: 700;
}

.section-header p {
    font-size: 18px;
    color: var(--text-light);
    max-width: 640px;
    margin: 0 auto;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 32px;
}

.feature-card {
    background: var(--white);
    padding: 40px 32px;
    border-radius: 16px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
    transition: var(--transition);
    text-align: center;
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
}

.feature-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 24px;
    background: linear-gradient(135deg, rgba(255, 107, 53, 0.1), rgba(244, 162, 97, 0.1));
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.feature-icon i {
    font-size: 36px;
    color: var(--primary-color);
}

.feature-card h3 {
    font-size: 24px;
    color: var(--text-dark);
    margin-bottom: 14px;
    font-weight: 600;
}

.feature-card p {
    font-size: 15px;
    color: var(--text-light);
    line-height: 1.7;
}

.info-section {
    padding: 80px 0;
    background: linear-gradient(to bottom, var(--light-bg), var(--white));
}

.info-grid {
    display: flex;
    flex-direction: column;
    gap: 48px;
}

.info-block {
    display: flex;
    gap: 40px;
    align-items: flex-start;
}

.info-block:nth-child(even) {
    flex-direction: row-reverse;
}

.info-icon-wrapper {
    flex-shrink: 0;
    width: 100px;
    height: 100px;
    background: linear-gradient(135deg, var(--secondary-color), #20bf6b);
    border-radius: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 8px 24px rgba(42, 157, 143, 0.25);
}

.info-icon-wrapper i {
    font-size: 44px;
    color: var(--white);
}

.info-text {
    flex: 1;
}

.info-text h3 {
    font-size: 28px;
    color: var(--text-dark);
    margin-bottom: 16px;
    font-weight: 600;
}

.info-text p {
    font-size: 16px;
    color: var(--text-light);
    line-height: 1.8;
    margin-bottom: 12px;
}

.stats-section {
    padding: 70px 0;
    background: linear-gradient(135deg, var(--dark-bg) 0%, #2d4059 100%);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 40px;
}

.stat-item {
    text-align: center;
    padding: 24px;
}

.stat-number {
    font-size: 48px;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 8px;
    display: block;
}

.stat-label {
    font-size: 16px;
    color: rgba(255, 255, 255, 0.8);
    font-weight: 500;
}

.cta-section {
    padding: 80px 0;
    background: linear-gradient(135deg, rgba(255, 107, 53, 0.05), rgba(244, 162, 97, 0.05));
    text-align: center;
}

.cta-content h2 {
    font-size: 38px;
    color: var(--text-dark);
    margin-bottom: 20px;
    font-weight: 700;
}

.cta-content p {
    font-size: 18px;
    color: var(--text-light);
    margin-bottom: 32px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.footer {
    background: var(--dark-bg);
    padding: 60px 0 24px;
    color: rgba(255, 255, 255, 0.7);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: 48px;
    margin-bottom: 48px;
}

.footer-col h4 {
    color: var(--white);
    font-size: 18px;
    margin-bottom: 20px;
    font-weight: 600;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 26px;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 16px;
}

.footer-logo i {
    color: var(--primary-color);
    font-size: 30px;
}

.footer-col p {
    font-size: 14px;
    line-height: 1.8;
    margin-bottom: 20px;
}

.social-links {
    display: flex;
    gap: 12px;
}

.social-links a {
    width: 42px;
    height: 42px;
    background: rgba(255, 255, 255, 0.08);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 18px;
    transition: var(--transition);
}

.social-links a:hover {
    background: var(--primary-color);
    transform: translateY(-4px);
}

.footer-col ul {
    list-style: none;
}

.footer-col ul li {
    margin-bottom: 12px;
}

.footer-col ul li a {
    color: rgba(255, 255, 255, 0.7);
    font-size: 14px;
    transition: var(--transition);
}

.footer-col ul li a:hover {
    color: var(--primary-color);
    padding-left: 4px;
}

.contact-info li {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 14px;
    color: rgba(255, 255, 255, 0.7);
    font-size: 14px;
}

.contact-info i {
    color: var(--primary-color);
    font-size: 16px;
    width: 20px;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 24px;
    text-align: center;
}

.footer-bottom p {
    font-size: 14px;
    margin-bottom: 8px;
}

.disclaimer {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.5);
}

.content-section {
    padding: 80px 0;
    background: var(--white);
}

.content-wrapper {
    max-width: 900px;
    margin: 0 auto;
}

.content-wrapper h1 {
    font-size: 44px;
    color: var(--text-dark);
    margin-bottom: 24px;
    font-weight: 700;
}

.content-wrapper h2 {
    font-size: 32px;
    color: var(--text-dark);
    margin-top: 48px;
    margin-bottom: 20px;
    font-weight: 600;
}

.content-wrapper h3 {
    font-size: 24px;
    color: var(--text-dark);
    margin-top: 32px;
    margin-bottom: 16px;
    font-weight: 600;
}

.content-wrapper p {
    font-size: 16px;
    color: var(--text-light);
    line-height: 1.9;
    margin-bottom: 20px;
}

.content-wrapper strong {
    color: var(--text-dark);
    font-weight: 600;
}

.error-404 {
    padding: 120px 0;
    text-align: center;
    background: linear-gradient(to bottom, var(--light-bg), var(--white));
}

.error-content h1 {
    font-size: 120px;
    color: var(--primary-color);
    font-weight: 800;
    margin-bottom: 16px;
}

.error-content h2 {
    font-size: 36px;
    color: var(--text-dark);
    margin-bottom: 16px;
    font-weight: 600;
}

.error-content p {
    font-size: 18px;
    color: var(--text-light);
    margin-bottom: 40px;
}

@media (max-width: 992px) {
    .nav-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--dark-bg);
        flex-direction: column;
        padding: 24px;
        box-shadow: var(--shadow-lg);
    }

    .nav-menu.active {
        display: flex;
    }

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

    .nav-cta {
        display: none;
    }

    .hero-content h1 {
        font-size: 38px;
    }

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

    .info-block {
        flex-direction: column;
    }

    .info-block:nth-child(even) {
        flex-direction: column;
    }
}

@media (max-width: 768px) {
    .features-grid {
        grid-template-columns: 1fr;
    }

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

    .hero-content h1 {
        font-size: 32px;
    }

    .section-header h2 {
        font-size: 32px;
    }

    .content-wrapper h1 {
        font-size: 32px;
    }

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

@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }

    .hero-section {
        padding: 60px 0 40px;
    }

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

    .btn-large {
        width: 100%;
        justify-content: center;
    }

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

    .error-content h1 {
        font-size: 80px;
    }
}