@import url('https://fonts.googleapis.com/css2?family=Nunito+Sans:wght@300;400;600;700&display=swap');

:root {
    --tan: #fdfdfd;
    --accent: #4285f4;
    --accent-hover: #2b6fe4;
    --accent-dark: #183264;
    --cloudwhite: #f4fafc;
    --endchat: #ea4335;
    --endchat-hover: #c93428;
    --endchat-dark: #8b231f;
    --dark-text: #202124;
    --light-text: #5f6368;
    --gray: #77777a;
    --jetblack: #0e0e10;
    --online: #99d590;
    --white: #ffffff;
    --border-color: #dadce0;
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.1);
    --shadow-accent: 0 4px 12px rgba(66, 133, 244, 0.3);
    --shadow-accent-light: 0 4px 12px rgba(66, 133, 244, 0.2);
    --border-radius-sm: 10px;
    --border-radius-md: 16px;
    --border-radius-lg: 25px;
    --border-radius-xl: 50px;
    --transition-fast: all 0.2s ease;
    --transition-base: all 0.3s ease;
    --font-family: 'Nunito Sans', sans-serif;
}

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

body {
    font-family: var(--font-family);
    background: var(--cloudwhite);
    color: var(--dark-text);
    line-height: 1.6;
}

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

.header {
    background: var(--white);
    box-shadow: var(--shadow-sm);
    padding: 15px 0;
    position: sticky;
    top: 0;
    z-index: 100;
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 24px;
    font-weight: 700;
    color: var(--accent);
}

.logo img {
    width: 40px;
    height: 40px;
    transform: rotate(-30deg);
}

.cta-button {
    background: var(--accent);
    color: var(--white);
    text-decoration: none;
    padding: 10px 24px;
    border-radius: var(--border-radius-lg);
    font-weight: 600;
    transition: var(--transition-base);
    display: inline-block;
}

.cta-button:hover {
    background: var(--accent-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow-accent);
}

.cta-button.primary {
    font-size: 18px;
    padding: 14px 32px;
}

.cta-button.large {
    font-size: 20px;
    padding: 16px 40px;
}

.hero {
    padding: 80px 0;
    background: linear-gradient(135deg, var(--cloudwhite) 0%, #e3f2fd 100%);
}

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

.hero-content h1 {
    font-size: 48px;
    font-weight: 700;
    margin-bottom: 20px;
    line-height: 1.2;
}

.highlight {
    color: var(--accent);
}

.hero-description {
    font-size: 20px;
    color: var(--light-text);
    margin-bottom: 30px;
}

.hero-image {
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-image img {
    width: 100%;
    max-width: 400px;
    animation: float 3s ease-in-out infinite;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-20px);
    }
}

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

.section-title {
    text-align: center;
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 50px;
    color: var(--dark-text);
}

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

.feature-card {
    background: var(--cloudwhite);
    padding: 30px;
    border-radius: var(--border-radius-md);
    transition: var(--transition-base);
    border: 2px solid transparent;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: var(--accent);
}

.feature-icon {
    font-size: 48px;
    margin-bottom: 15px;
}

.feature-card h3 {
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--dark-text);
}

.feature-card p {
    color: var(--light-text);
    font-size: 16px;
}

.tech-stack {
    padding: 80px 0;
    background: var(--cloudwhite);
}

.tech-list {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 20px;
    margin-top: 40px;
}

.tech-item {
    background: var(--white);
    padding: 15px 30px;
    border-radius: var(--border-radius-xl);
    box-shadow: var(--shadow-md);
    transition: var(--transition-base);
}

.tech-item:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-accent-light);
}

.tech-name {
    font-weight: 600;
    color: var(--accent);
    font-size: 16px;
}

.cta-section {
    padding: 80px 0;
    background: linear-gradient(135deg, var(--accent) 0%, var(--accent-hover) 100%);
    color: var(--white);
    text-align: center;
}

.cta-section h2 {
    font-size: 40px;
    font-weight: 700;
    margin-bottom: 15px;
}

.cta-section p {
    font-size: 20px;
    margin-bottom: 30px;
    opacity: 0.95;
}

.cta-section .cta-button {
    background: var(--white);
    color: var(--accent);
}

.cta-section .cta-button:hover {
    background: var(--tan);
    transform: translateY(-2px) scale(1.05);
}

.footer {
    background: var(--dark-text);
    color: var(--white);
    text-align: center;
    padding: 30px 0;
}

.footer p {
    opacity: 0.8;
}

@media (max-width: 768px) {
    .hero .container {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .hero-content h1 {
        font-size: 36px;
    }

    .hero-description {
        font-size: 18px;
    }

    .hero-image img {
        max-width: 250px;
    }

    .section-title {
        font-size: 28px;
    }

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

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

    .cta-section p {
        font-size: 18px;
    }
}