/* Reset and base styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Refined Environmental Palette */
    --forest-dark: #1a2e1a;
    --forest-medium: #2d4a2d;
    --sage-green: #4a6741;
    --mint-fresh: #6b8e5a;
    --earth-brown: #8b7355;
    --sky-blue: #5a7a8b;
    
    /* Waste Category Colors - Muted but distinct */
    --eco-gems: #6b8e5a;
    --bio-shards: #7a9b3a;
    --tech-cores: #b8860b;
    --toxic-vials: #cd5c5c;
    --grey-matter: #708090;
    
    /* UI Colors */
    --text-primary: #f8f9fa;
    --text-secondary: rgba(248, 249, 250, 0.85);
    --text-muted: rgba(248, 249, 250, 0.65);
    --text-dark: #1a2e1a;
    --background-glass: rgba(248, 249, 250, 0.08);
    --background-glass-hover: rgba(248, 249, 250, 0.12);
    --background-card: rgba(248, 249, 250, 0.04);
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #1a2e1a 0%, #2d4a2d 50%, #1a2e1a 100%);
    --gradient-accent: linear-gradient(135deg, #6b8e5a 0%, #5a7a8b 100%);
    
    /* Shadows */
    --shadow-subtle: 0 2px 12px rgba(26, 46, 26, 0.3);
    --shadow-soft: 0 4px 20px rgba(26, 46, 26, 0.2);
    --shadow-medium: 0 8px 30px rgba(26, 46, 26, 0.25);
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-xxl: 4rem;
    
    /* Border radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-full: 50px;
    
    /* Transitions */
    --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-medium: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background: var(--gradient-primary);
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

/* Focus styles for accessibility */
*:focus {
    outline: 2px solid var(--primary-accent);
    outline-offset: 2px;
}

button:focus,
input:focus {
    outline: 2px solid var(--primary-accent);
    outline-offset: 2px;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-sm);
    width: 100%;
}

/* Mobile-first responsive container */
@media (min-width: 576px) {
    .container {
        padding: 0 var(--spacing-md);
    }
}

@media (min-width: 768px) {
    .container {
        padding: 0 var(--spacing-lg);
    }
}

@media (min-width: 992px) {
    .container {
        padding: 0 var(--spacing-xl);
    }
}

/* Hero Section */
.hero {
    background: var(--gradient-primary);
    color: var(--text-primary);
    min-height: 100vh;
    display: flex;
    align-items: center;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 30% 70%, rgba(107, 142, 90, 0.08) 0%, transparent 50%),
        radial-gradient(circle at 70% 30%, rgba(90, 122, 139, 0.06) 0%, transparent 50%);
    pointer-events: none;
}

.hero .container {
    position: relative;
    z-index: 1;
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
}

.hero h1 {
    font-size: clamp(2.8rem, 8vw, 4.5rem);
    margin-bottom: var(--spacing-xs);
    font-weight: 700;
    letter-spacing: -0.02em;
    background: var(--gradient-accent);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: fadeInUp 0.8s ease-out;
}

.hero .subtitle {
    font-size: clamp(1.2rem, 4vw, 1.8rem);
    margin-bottom: var(--spacing-sm);
    color: var(--text-secondary);
    font-weight: 600;
    letter-spacing: 0.02em;
    animation: fadeInUp 0.8s ease-out 0.2s both;
}

.hero .description {
    font-size: clamp(1rem, 2.5vw, 1.2rem);
    margin-bottom: var(--spacing-lg);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    color: var(--text-muted);
    line-height: 1.7;
    animation: fadeInUp 0.8s ease-out 0.4s both;
}

/* Hero Visual Elements */
.hero-visual {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    animation: fadeInUp 0.8s ease-out 0.5s both;
    flex-wrap: wrap;
}

.ai-indicator,
.feature-pill {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    background: var(--background-glass);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-full);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: all var(--transition-medium);
    box-shadow: var(--shadow-soft);
}

.ai-indicator:hover,
.feature-pill:hover {
    background: var(--background-glass-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow-soft);
    border-color: rgba(107, 142, 90, 0.2);
}

.ai-dot,
.feature-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    animation: pulse 4s infinite;
}

.ai-dot {
    background: var(--mint-fresh);
}

.feature-dot.points-dot {
    background: var(--eco-gems);
}

.feature-dot.social-dot {
    background: var(--sky-blue);
}

.feature-dot.categories-dot {
    background: var(--earth-brown);
}

.ai-text,
.feature-text {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-primary);
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
}

.points-caption {
    text-align: center;
    font-size: 0.9rem;
    font-style: italic;
    color: var(--text-muted);
    max-width: 400px;
    margin: 0 auto var(--spacing-lg);
    animation: fadeInUp 0.8s ease-out 0.6s both;
    background: var(--background-card);
    padding: var(--spacing-sm);
    border-radius: var(--radius-md);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.05);
}

/* Inline Coming Soon Section */
.coming-soon-inline {
    text-align: center;
    margin-bottom: var(--spacing-lg);
    animation: fadeInUp 0.8s ease-out 0.7s both;
}

.coming-soon-text {
    font-size: 1rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
    font-weight: 600;
    letter-spacing: 0.02em;
}

.email-signup {
    display: flex;
    justify-content: center;
    gap: var(--spacing-sm);
    max-width: 400px;
    margin: 0 auto var(--spacing-md);
    flex-wrap: wrap;
}

.email-signup input {
    flex: 1;
    min-width: 200px;
    padding: var(--spacing-sm) var(--spacing-md);
    border: none;
    border-radius: var(--radius-full);
    font-size: 0.9rem;
    background: var(--background-glass);
    color: var(--text-primary);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: all var(--transition-fast);
    outline: none;
}

.email-signup input:focus {
    background: var(--background-glass-hover);
    transform: translateY(-1px);
    box-shadow: var(--shadow-soft);
    border-color: rgba(107, 142, 90, 0.3);
}

.email-signup input::placeholder {
    color: var(--text-muted);
}

.email-signup button {
    background: var(--gradient-accent);
    color: var(--text-primary);
    border: none;
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--radius-full);
    cursor: pointer;
    font-weight: 700;
    font-size: 0.9rem;
    transition: all var(--transition-medium);
    white-space: nowrap;
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-soft);
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
}

.email-signup button:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-soft);
    filter: brightness(1.05);
}

.email-signup button:active {
    transform: translateY(-1px);
}

.success-message,
.error-message {
    margin-top: var(--spacing-sm);
    padding: var(--spacing-sm);
    border-radius: var(--radius-md);
    max-width: 400px;
    margin-left: auto;
    margin-right: auto;
    backdrop-filter: blur(20px);
    animation: fadeInUp 0.5s ease-out;
    box-shadow: var(--shadow-soft);
}

.success-message {
    background: rgba(107, 142, 90, 0.1);
    border: 1px solid rgba(107, 142, 90, 0.3);
    box-shadow: var(--shadow-subtle);
}

.error-message {
    background: rgba(205, 92, 92, 0.1);
    border: 1px solid rgba(205, 92, 92, 0.3);
    box-shadow: var(--shadow-subtle);
}

.success-message p,
.error-message p {
    margin: 0;
    font-weight: 600;
    color: var(--text-primary);
    font-size: 0.9rem;
}

.btn-loading {
    display: none;
}

/* Social Links */
.social-links {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
    animation: fadeInUp 0.8s ease-out 0.8s both;
}

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    background: var(--background-glass);
    border-radius: 50%;
    text-decoration: none;
    transition: all var(--transition-medium);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: var(--shadow-soft);
}

.social-link:hover {
    background: var(--background-glass-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow-soft);
    border-color: rgba(107, 142, 90, 0.2);
}

.social-icon {
    width: 18px;
    height: 18px;
    color: var(--text-primary);
}

.social-icon:not(svg) {
    font-size: 1.1rem;
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
        transform: scale(1);
    }
    50% {
        opacity: 0.7;
        transform: scale(1.2);
    }
}

.cta-button {
    background: var(--background-white);
    color: var(--primary-green);
    border: none;
    padding: var(--spacing-sm) var(--spacing-xl);
    font-size: 1.1rem;
    border-radius: var(--radius-full);
    cursor: pointer;
    font-weight: 600;
    transition: all var(--transition-medium);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    animation: fadeInUp 0.8s ease-out 0.6s both;
    position: relative;
    overflow: hidden;
}

.cta-button::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: left var(--transition-slow);
}

.cta-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
}

.cta-button:hover::before {
    left: 100%;
}

.cta-button:active {
    transform: translateY(-1px);
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}





/* Enhanced Responsive Design */

/* Medium devices (tablets, 768px and up) */
@media (min-width: 768px) {
    .email-signup {
        flex-wrap: nowrap;
    }
    
    .email-signup input {
        min-width: auto;
    }
}

/* Large devices (desktops, 992px and up) */
@media (min-width: 992px) {
    .hero {
        padding: var(--spacing-xl) 0;
    }
}

/* Extra large devices (large desktops, 1200px and up) */
@media (min-width: 1200px) {
    .container {
        max-width: 1140px;
    }
}

/* Mobile-specific adjustments */
@media (max-width: 767px) {
    .email-signup {
        flex-direction: column;
        gap: var(--spacing-sm);
        max-width: 100%;
    }
    
    .email-signup input,
    .email-signup button {
        width: 100%;
        min-width: auto;
    }
    
    .hero-visual {
        gap: var(--spacing-sm);
    }
    
    .ai-indicator,
    .feature-pill {
        padding: var(--spacing-xs) var(--spacing-sm);
    }
    
    .ai-text,
    .feature-text {
        font-size: 0.85rem;
    }
    
    .points-caption {
        font-size: 0.8rem;
        margin-bottom: var(--spacing-md);
    }
    
    .coming-soon-text {
        font-size: 0.9rem;
    }
    
    .social-links {
        gap: var(--spacing-sm);
    }
    
    .social-link {
        width: 36px;
        height: 36px;
    }
    
    .social-icon {
        font-size: 1rem;
    }
}

/* Reduced motion preferences */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    .hero::before,
    .coming-soon::before {
        display: none;
    }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    :root {
        --shadow-light: rgba(0, 0, 0, 0.3);
        --shadow-medium: rgba(0, 0, 0, 0.4);
    }
    
    .feature-card {
        border: 2px solid var(--primary-green);
    }
}

/* Dark mode support (for future implementation) */
@media (prefers-color-scheme: dark) {
    /* Dark mode styles can be added here in the future */
}