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

:root {
    /* Light blue sky background */
    --color-bg: #e8f4fc;
    --color-surface: #ffffff;
    --color-surface-alt: #f0f7fb;
    --color-border: #c5dde8;
    
    /* Brown natural text colors */
    --color-text: #4a3728;
    --color-text-muted: #6b5344;
    --color-text-light: #8b7355;
    
    /* Earthy accent colors */
    --color-primary: #8b5a2b;
    --color-primary-light: #a0522d;
    --color-primary-dark: #6b4423;
    --color-secondary: #5d8aa8;
    --color-accent: #7ba05b;
    
    /* Natural gradients */
    --gradient-primary: linear-gradient(135deg, #a0522d 0%, #8b5a2b 50%, #6b4423 100%);
    --gradient-sky: linear-gradient(180deg, #87ceeb 0%, #b0e0e6 30%, #e8f4fc 100%);
    --gradient-earth: linear-gradient(135deg, #8b5a2b 0%, #a0522d 100%);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    background-color: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
    overflow-x: hidden;
}

/* Background */
.background-gradient {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--gradient-sky);
    z-index: -1;
}

/* Navigation */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 3rem;
    z-index: 100;
    backdrop-filter: blur(10px);
    background: rgba(255, 255, 255, 0.85);
    border-bottom: 1px solid var(--color-border);
    box-shadow: 0 2px 10px rgba(139, 90, 43, 0.08);
}

.nav-brand {
    font-size: 1.5rem;
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-links {
    display: flex;
    gap: 2rem;
}

.nav-links a {
    color: var(--color-text-muted);
    text-decoration: none;
    font-size: 0.95rem;
    transition: color 0.2s ease;
}

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

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 6rem 3rem 3rem;
    position: relative;
}

.hero-content {
    text-align: center;
    max-width: 800px;
    z-index: 1;
}

.hero-title {
    font-size: clamp(3rem, 10vw, 6rem);
    font-weight: 800;
    letter-spacing: -0.02em;
    margin-bottom: 1rem;
}

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

.hero-subtitle {
    font-size: 1.5rem;
    color: var(--color-text-muted);
    margin-bottom: 1.5rem;
}

.hero-description {
    font-size: 1.1rem;
    color: var(--color-text-muted);
    margin-bottom: 2.5rem;
}

/* CTA Buttons */
.cta-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.btn {
    padding: 0.875rem 2rem;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 500;
    text-decoration: none;
    transition: all 0.2s ease;
    cursor: pointer;
}

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    border: none;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(139, 90, 43, 0.3);
}

.btn-secondary {
    background: transparent;
    color: var(--color-text);
    border: 1px solid var(--color-border);
}

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

/* Floating Cards */
.hero-visual {
    position: absolute;
    width: 100%;
    height: 100%;
    pointer-events: none;
}

.floating-card {
    position: absolute;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: 12px;
    padding: 1rem 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    animation: float 6s ease-in-out infinite;
    opacity: 0.9;
    box-shadow: 0 4px 20px rgba(139, 90, 43, 0.1);
}

.card-icon {
    font-size: 1.5rem;
}

.card-text {
    font-size: 0.875rem;
    color: var(--color-text-muted);
}

.card-1 {
    top: 20%;
    left: 10%;
    animation-delay: 0s;
}

.card-2 {
    top: 30%;
    right: 10%;
    animation-delay: 2s;
}

.card-3 {
    bottom: 25%;
    left: 15%;
    animation-delay: 4s;
}

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

/* Sections */
.section {
    padding: 6rem 3rem;
}

.section-content {
    max-width: 1000px;
    margin: 0 auto;
}

.section h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section p {
    font-size: 1.1rem;
    color: var(--color-text-muted);
    margin-bottom: 2rem;
}

.section-dark {
    background: var(--color-surface-alt);
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
}

/* Features Grid */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.feature {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: 12px;
    padding: 2rem;
    transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
    box-shadow: 0 2px 10px rgba(139, 90, 43, 0.05);
}

.feature:hover {
    transform: translateY(-4px);
    border-color: var(--color-primary);
    box-shadow: 0 8px 25px rgba(139, 90, 43, 0.12);
}

.feature-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.feature h3 {
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
    color: var(--color-text);
}

.feature p {
    font-size: 0.95rem;
    color: var(--color-text-muted);
    margin-bottom: 0;
}

/* Code Block */
.code-block {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: 8px;
    padding: 1.25rem 1.5rem;
    font-family: 'SF Mono', 'Fira Code', monospace;
    font-size: 1rem;
    color: var(--color-primary);
    margin-bottom: 1.5rem;
    overflow-x: auto;
    box-shadow: inset 0 1px 3px rgba(139, 90, 43, 0.1);
}

/* API Status */
.api-status {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: 20px;
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
    color: var(--color-text-muted);
}

.status-indicator {
    width: 8px;
    height: 8px;
    background: var(--color-accent);
    border-radius: 50%;
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

/* Footer */
.footer {
    padding: 2rem 3rem;
    text-align: center;
    color: var(--color-text-muted);
    font-size: 0.875rem;
    border-top: 1px solid var(--color-border);
}

/* Responsive */
@media (max-width: 768px) {
    .nav {
        padding: 1rem 1.5rem;
    }
    
    .nav-links {
        gap: 1rem;
    }
    
    .hero {
        padding: 5rem 1.5rem 3rem;
    }
    
    .floating-card {
        display: none;
    }
    
    .section {
        padding: 4rem 1.5rem;
    }
    
    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .btn {
        width: 100%;
        max-width: 250px;
        text-align: center;
    }
}