/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #6366f1;
    --primary-dark: #4f46e5;
    --primary-light: #818cf8;
    --secondary-color: #8b5cf6;
    --text-dark: #0f172a;
    --text-medium: #334155;
    --text-light: #64748b;
    --text-lighter: #94a3b8;
    --bg-light: #f1f5f9;
    --bg-lighter: #f8fafc;
    --bg-white: #ffffff;
    --border-color: #e2e8f0;
    --border-light: #f1f5f9;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.08), 0 2px 4px -1px rgba(0, 0, 0, 0.04);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    --gradient-primary: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    --gradient-subtle: linear-gradient(135deg, rgba(99, 102, 241, 0.1) 0%, rgba(139, 92, 246, 0.1) 100%);
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    line-height: 1.7;
    color: var(--text-dark);
    background-color: var(--bg-white);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background-color: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(12px) saturate(180%);
    -webkit-backdrop-filter: blur(12px) saturate(180%);
    box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.05);
    z-index: 1000;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.navbar.scrolled {
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
}

.nav-wrapper {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.25rem 0;
}

.logo h2 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-dark);
    letter-spacing: -0.02em;
}

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

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2.5rem;
    align-items: center;
}

.nav-link {
    text-decoration: none;
    color: var(--text-medium);
    font-weight: 500;
    font-size: 0.9375rem;
    transition: all 0.2s ease;
    position: relative;
    padding: 0.5rem 0;
}

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

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2.5px;
    background: var(--gradient-primary);
    border-radius: 2px;
    transition: width 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.nav-link:hover::after {
    width: 100%;
}

.nav-link.active {
    color: var(--primary-color);
}

.nav-link.active::after {
    width: 100%;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    background: none;
    border: none;
    cursor: pointer;
    gap: 5px;
    padding: 0.5rem;
}

.nav-toggle span {
    width: 24px;
    height: 2.5px;
    background-color: var(--text-dark);
    border-radius: 2px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.nav-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(7px, 7px);
}

.nav-toggle.active span:nth-child(2) {
    opacity: 0;
}

.nav-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -7px);
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    padding-top: 100px;
    padding-bottom: 80px;
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--gradient-primary);
    opacity: 0.03;
    z-index: -1;
}

.hero-background::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 800px;
    height: 800px;
    background: radial-gradient(circle, rgba(99, 102, 241, 0.1) 0%, transparent 70%);
    border-radius: 50%;
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 5rem;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-content {
    animation: fadeInUp 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.hero-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 1.75rem;
    color: var(--text-dark);
    letter-spacing: -0.03em;
}

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

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-medium);
    margin-bottom: 2.5rem;
    line-height: 1.8;
    font-weight: 400;
    max-width: 540px;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.btn {
    padding: 1rem 2.25rem;
    border-radius: 0.75rem;
    text-decoration: none;
    font-weight: 600;
    font-size: 1rem;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: 2px solid transparent;
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: 0 4px 6px -1px rgba(99, 102, 241, 0.3), 0 2px 4px -1px rgba(99, 102, 241, 0.2);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 15px -3px rgba(99, 102, 241, 0.4), 0 4px 6px -2px rgba(99, 102, 241, 0.3);
}

.btn-primary:active {
    transform: translateY(0);
}

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

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

.hero-visual {
    position: relative;
    height: 550px;
}

.floating-card {
    position: absolute;
    background: white;
    padding: 2rem;
    border-radius: 1.25rem;
    box-shadow: var(--shadow-xl);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    animation: float 4s ease-in-out infinite;
    border: 1px solid var(--border-light);
    transition: transform 0.3s ease;
}

.floating-card:hover {
    transform: scale(1.05);
}

.card-icon {
    font-size: 3.5rem;
    filter: grayscale(0.2);
}

.floating-card p {
    font-weight: 600;
    color: var(--text-dark);
    font-size: 1.125rem;
}

.card-1 {
    top: 15%;
    left: 5%;
    animation-delay: 0s;
}

.card-2 {
    top: 50%;
    right: 5%;
    animation-delay: 1.3s;
}

.card-3 {
    bottom: 10%;
    left: 25%;
    animation-delay: 2.6s;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0px) rotate(0deg);
    }
    50% {
        transform: translateY(-25px) rotate(2deg);
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(40px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Section Styles */
.section-header {
    text-align: center;
    margin-bottom: 5rem;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.section-title {
    font-size: clamp(2rem, 4vw, 2.75rem);
    font-weight: 800;
    margin-bottom: 1.25rem;
    color: var(--text-dark);
    letter-spacing: -0.02em;
    line-height: 1.2;
}

.section-subtitle {
    font-size: 1.1875rem;
    color: var(--text-medium);
    line-height: 1.7;
    font-weight: 400;
}

/* Challenges Section */
.challenges {
    padding: 7rem 0;
    background: linear-gradient(to bottom, var(--bg-white) 0%, var(--bg-lighter) 100%);
    position: relative;
}

.challenges::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(to right, transparent, var(--border-color), transparent);
}

.challenges-content {
    max-width: 1100px;
    margin: 0 auto;
}

.challenges-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
    margin-top: 2.5rem;
}

.challenge-card {
    background: white;
    padding: 3rem 2.5rem;
    border-radius: 1.25rem;
    border: 1px solid var(--border-color);
    border-left: 4px solid var(--primary-color);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: var(--shadow-sm);
    position: relative;
    overflow: hidden;
}

.challenge-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 0;
    background: var(--gradient-primary);
    transition: height 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

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

.challenge-card:hover::before {
    height: 100%;
}

.challenge-icon {
    font-size: 3.5rem;
    margin-bottom: 1.75rem;
    display: inline-block;
    filter: grayscale(0.1);
    transition: transform 0.3s ease;
}

.challenge-card:hover .challenge-icon {
    transform: scale(1.1);
}

.challenge-card h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--text-dark);
    line-height: 1.3;
}

.challenge-card p {
    color: var(--text-medium);
    line-height: 1.8;
    font-size: 1.0625rem;
}

/* Services Section */
.services {
    padding: 7rem 0;
    background-color: var(--bg-white);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.service-card {
    background: white;
    padding: 3rem 2.5rem;
    border-radius: 1.25rem;
    box-shadow: var(--shadow-sm);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid var(--border-light);
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

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

.service-card:hover::before {
    transform: scaleX(1);
}

.service-icon {
    font-size: 3.5rem;
    margin-bottom: 1.75rem;
    display: inline-block;
    filter: grayscale(0.1);
    transition: transform 0.3s ease;
}

.service-card:hover .service-icon {
    transform: scale(1.1) rotate(5deg);
}

.service-card h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--text-dark);
    line-height: 1.3;
}

.service-card p {
    color: var(--text-medium);
    line-height: 1.8;
    font-size: 1.0625rem;
}

/* About Section */
.about {
    padding: 7rem 0;
    background: linear-gradient(to bottom, var(--bg-lighter) 0%, var(--bg-white) 100%);
}

.about-content {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 5rem;
    align-items: center;
}

.about-text p {
    color: var(--text-medium);
    margin-bottom: 1.75rem;
    line-height: 1.8;
    font-size: 1.125rem;
}

.stats {
    display: flex;
    gap: 4rem;
    margin-top: 3.5rem;
    flex-wrap: wrap;
}

.stat-item h3 {
    font-size: 3rem;
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0.5rem;
    line-height: 1;
    letter-spacing: -0.02em;
}

.stat-item p {
    color: var(--text-medium);
    font-weight: 500;
    font-size: 1rem;
}

.about-visual {
    position: relative;
    height: 450px;
}

.visual-box {
    width: 100%;
    height: 100%;
    border-radius: 1.5rem;
    background: var(--gradient-primary);
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-2xl);
}

.visual-element {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 220px;
    height: 220px;
    border: 4px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    opacity: 0.4;
    animation: pulse 3s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% {
        transform: translate(-50%, -50%) scale(1);
        opacity: 0.4;
    }
    50% {
        transform: translate(-50%, -50%) scale(1.15);
        opacity: 0.2;
    }
}

/* Solutions Section */
.solutions {
    padding: 7rem 0;
    background-color: var(--bg-white);
}

.solutions-content {
    display: grid;
    grid-template-columns: 1.4fr 1fr;
    gap: 5rem;
    align-items: center;
    max-width: 1100px;
    margin: 0 auto;
}

.solutions-text {
    text-align: left;
}

.solution-message {
    background: var(--gradient-subtle);
    padding: 3rem;
    border-radius: 1.5rem;
    border-left: 5px solid var(--primary-color);
    margin: 2.5rem 0;
    box-shadow: var(--shadow-sm);
}

.solution-headline {
    font-size: 2.25rem;
    font-weight: 800;
    margin-bottom: 1.25rem;
    color: var(--text-dark);
    letter-spacing: -0.02em;
    line-height: 1.2;
}

.solution-description {
    font-size: 1.3125rem;
    color: var(--text-dark);
    margin-bottom: 1.75rem;
    line-height: 1.7;
    font-weight: 600;
}

.solutions-text p {
    color: var(--text-medium);
    line-height: 1.8;
    font-size: 1.125rem;
}

.solutions-visual {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100%;
}

.solution-icon {
    font-size: 10rem;
    opacity: 0.15;
    filter: blur(1px);
}

/* Contact Section */
.contact {
    padding: 7rem 0;
    background: linear-gradient(to bottom, var(--bg-lighter) 0%, var(--bg-white) 100%);
}

.contact-content {
    max-width: 1100px;
    margin: 0 auto;
}

.contact-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.contact-card {
    background: white;
    padding: 3.5rem 2.5rem;
    border-radius: 1.5rem;
    text-align: center;
    box-shadow: var(--shadow-sm);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid var(--border-light);
    position: relative;
    overflow: hidden;
}

.contact-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.contact-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-2xl);
    border-color: var(--primary-light);
}

.contact-card:hover::before {
    transform: scaleX(1);
}

.contact-card-icon {
    font-size: 4rem;
    margin-bottom: 2rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 100px;
    height: 100px;
    background: var(--gradient-subtle);
    border-radius: 50%;
    transition: transform 0.3s ease;
}

.contact-card:hover .contact-card-icon {
    transform: scale(1.1) rotate(5deg);
}

.contact-card h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1.25rem;
    color: var(--text-dark);
}

.contact-card p {
    color: var(--text-medium);
    font-size: 1.125rem;
    line-height: 1.7;
}

.contact-card a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    transition: all 0.2s ease;
    display: inline-block;
}

.contact-card a:hover {
    color: var(--primary-dark);
    transform: translateX(3px);
}

/* Footer */
.footer {
    background: linear-gradient(135deg, var(--text-dark) 0%, #1e293b 100%);
    color: white;
    padding: 5rem 0 2.5rem;
    position: relative;
}

.footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(to right, transparent, rgba(255, 255, 255, 0.1), transparent);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 4rem;
    margin-bottom: 4rem;
}

.footer-section h3,
.footer-section h4 {
    margin-bottom: 1.5rem;
    color: white;
    font-weight: 700;
}

.footer-section h3 {
    font-size: 1.5rem;
    letter-spacing: -0.02em;
}

.footer-section p {
    color: rgba(255, 255, 255, 0.75);
    line-height: 1.8;
    font-size: 1rem;
}

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

.footer-section ul li {
    margin-bottom: 1rem;
}

.footer-section a {
    color: rgba(255, 255, 255, 0.75);
    text-decoration: none;
    transition: all 0.2s ease;
    display: inline-block;
    font-size: 0.9375rem;
}

.footer-section a:hover {
    color: white;
    transform: translateX(4px);
}

.social-links {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.footer-bottom {
    text-align: center;
    padding-top: 3rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.9375rem;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .hero .container {
        grid-template-columns: 1fr;
        gap: 4rem;
    }

    .hero-visual {
        display: none;
    }

    .about-content {
        grid-template-columns: 1fr;
        gap: 4rem;
    }

    .solutions-content {
        grid-template-columns: 1fr;
        gap: 4rem;
    }

    .stats {
        justify-content: space-around;
    }
}

@media (max-width: 768px) {
    .container {
        padding: 0 20px;
    }

    .nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        flex-direction: column;
        background-color: white;
        width: 100%;
        text-align: center;
        transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        box-shadow: var(--shadow-xl);
        padding: 2.5rem 0;
        gap: 0;
    }

    .nav-menu.active {
        left: 0;
    }

    .nav-menu li {
        width: 100%;
        padding: 1.25rem 0;
    }

    .nav-toggle {
        display: flex;
    }

    .hero {
        padding-top: 90px;
        padding-bottom: 60px;
        min-height: auto;
    }

    .section-header {
        margin-bottom: 3.5rem;
    }

    .section-title {
        font-size: 2rem;
    }

    .section-subtitle {
        font-size: 1.0625rem;
    }

    .challenges,
    .services,
    .about,
    .solutions,
    .contact {
        padding: 5rem 0;
    }

    .challenges-grid,
    .services-grid,
    .contact-cards {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .challenge-card,
    .service-card {
        padding: 2.5rem 2rem;
    }

    .contact-card {
        padding: 3rem 2rem;
    }

    .solution-headline {
        font-size: 1.75rem;
    }

    .solution-description {
        font-size: 1.125rem;
    }

    .solution-message {
        padding: 2rem;
    }

    .stats {
        flex-direction: column;
        gap: 2.5rem;
        text-align: center;
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: 3rem;
        text-align: center;
    }

    .social-links {
        align-items: center;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2.25rem;
    }

    .hero-subtitle {
        font-size: 1.0625rem;
    }

    .hero-buttons {
        flex-direction: column;
        width: 100%;
    }

    .btn {
        width: 100%;
        padding: 1rem 2rem;
    }

    .challenge-card,
    .service-card,
    .contact-card {
        padding: 2rem 1.5rem;
    }

    .about-visual {
        height: 300px;
    }
}