:root {
    --brand-green: rgb(28, 173, 103);
    --brand-green-light: rgb(226, 248, 236);
    --brand-green-dark: rgb(17, 108, 60);
    --brand-gold: rgb(246, 192, 39);
    --soft-ivory: rgb(248, 247, 243);
    --mist-gray: rgb(238, 238, 234);
    
    --bg-color: rgb(246, 245, 242);
    --text-color: rgb(31, 31, 30);
    --text-muted: rgb(126, 124, 118);
    --card-surface: rgba(255, 255, 255, 0.65);
    --glass-border: rgba(255, 255, 255, 0.5);
    --glass-shadow: rgba(0, 0, 0, 0.08);
}

@media (prefers-color-scheme: dark) {
    :root {
        --bg-color: rgb(20, 20, 18);
        --text-color: rgb(247, 247, 247);
        --text-muted: rgb(173, 173, 173);
        --card-surface: rgba(31, 31, 28, 0.65);
        --glass-border: rgba(255, 255, 255, 0.06);
        --glass-shadow: rgba(0, 0, 0, 0.28);
    }
}

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

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

/* Background animated elements */
.hero-bg-shapes {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    overflow: hidden;
    z-index: -1;
}

.shape {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.6;
    animation: float 10s infinite ease-in-out alternate;
}

.shape-1 {
    width: 400px;
    height: 400px;
    background: var(--brand-green);
    top: -10%;
    left: -10%;
}

.shape-2 {
    width: 300px;
    height: 300px;
    background: var(--brand-gold);
    bottom: 20%;
    right: -5%;
    animation-delay: -3s;
}

.shape-3 {
    width: 250px;
    height: 250px;
    background: var(--brand-green-light);
    top: 30%;
    left: 40%;
    animation-delay: -6s;
}

@keyframes float {
    0% { transform: translateY(0) scale(1); }
    100% { transform: translateY(30px) scale(1.1); }
}

/* Glassmorphism */
.glass {
    background: var(--card-surface);
    backdrop-filter: blur(28px);
    -webkit-backdrop-filter: blur(28px);
    border: 1px solid var(--glass-border);
}

.glass-card {
    border-radius: 24px;
    padding: 40px;
    box-shadow: 0 10px 22px var(--glass-shadow);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

/* Navbar */
.navbar {
    position: fixed;
    top: 16px;
    left: 50%;
    transform: translateX(-50%);
    width: 90%;
    max-width: 1200px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 32px;
    border-radius: 30px;
    z-index: 100;
}

.logo {
    font-weight: 800;
    font-size: 1.5rem;
    color: var(--brand-green);
    letter-spacing: -0.5px;
}

.nav-links {
    list-style: none;
    display: flex;
    gap: 24px;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-color);
    font-weight: 600;
    transition: color 0.3s;
}

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

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 120px 20px 60px;
    text-align: center;
}

.hero-content {
    max-width: 800px;
    animation: fadeIn 1s ease-out;
}

.hero-content h1 {
    font-size: 4rem;
    margin-bottom: 24px;
    font-weight: 900;
    line-height: 1.1;
    letter-spacing: -1.5px;
    background: linear-gradient(135deg, var(--text-color), var(--brand-green));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-content p {
    font-size: 1.25rem;
    color: var(--text-muted);
    margin-bottom: 40px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.download-container {
    margin-top: 30px;
}

.download-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    background-color: var(--text-color);
    color: var(--bg-color);
    text-decoration: none;
    padding: 16px 36px;
    border-radius: 100px;
    font-weight: 700;
    font-size: 1.1rem;
    transition: transform 0.2s, box-shadow 0.2s, background-color 0.2s;
    box-shadow: 0 8px 24px rgba(0,0,0,0.15);
    width: auto;
    max-width: 100%;
}

.download-btn:hover {
    transform: translateY(-2px) scale(1.02);
    box-shadow: 0 12px 32px rgba(0,0,0,0.2);
}

.download-btn svg {
    flex-shrink: 0;
}

@media (prefers-color-scheme: dark) {
    .download-btn {
        box-shadow: 0 8px 24px rgba(0,0,0,0.4);
    }
}

/* Sub-Sections */
.section {
    padding: 100px 20px;
    display: flex;
    justify-content: center;
}

.container {
    max-width: 1000px;
    width: 100%;
}

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

.section-subtitle {
    font-size: 1.2rem;
    color: var(--text-muted);
    margin-top: 10px;
}

.section h2 {
    font-size: 2.8rem;
    font-weight: 800;
    margin-bottom: 24px;
    color: var(--brand-green);
    letter-spacing: -1px;
}

.section p, .section li {
    font-size: 1.15rem;
    color: var(--text-muted);
    margin-bottom: 16px;
}

.text-center {
    text-align: center;
}

.text-center .support-list {
    display: inline-block;
    text-align: left;
    margin: 20px auto;
}

.support-list li {
    margin-bottom: 15px;
}

.support-list strong {
    color: var(--text-color);
    display: block;
    margin-bottom: 4px;
}

.mx-auto {
    margin-left: auto;
    margin-right: auto;
}

.support-email-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 28px;
    background-color: var(--brand-green) !important;
    color: #ffffff !important;
    text-decoration: none !important;
    border-radius: 100px;
    font-weight: 700;
    font-size: 1.1rem;
    transition: transform 0.2s, box-shadow 0.2s, background-color 0.2s;
    box-shadow: 0 4px 12px rgba(28, 173, 103, 0.3) !important;
    margin: 10px 0 20px 0;
}

.support-email-btn:hover {
    background-color: var(--brand-green-dark) !important;
    color: #ffffff !important;
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(28, 173, 103, 0.4) !important;
}

/* Features Grid */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.feature-card {
    padding: 40px 30px;
    text-align: center;
}

.feature-card:hover {
    transform: translateY(-8px);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 20px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 80px;
    height: 80px;
    border-radius: 20px;
    background: rgba(255, 255, 255, 0.5);
    box-shadow: 0 4px 12px var(--glass-shadow);
}

@media (prefers-color-scheme: dark) {
    .feature-icon {
        background: rgba(255, 255, 255, 0.05);
    }
}

.icon-green { color: var(--brand-green); }
.icon-gold { color: var(--brand-gold); }
.icon-video { color: #ff0000; }

.feature-card h3 {
    font-size: 1.5rem;
    color: var(--text-color);
    margin-bottom: 15px;
    font-weight: 700;
}

.feature-card p {
    font-size: 1rem;
    margin-bottom: 0;
}

footer {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-muted);
    font-size: 1rem;
    border-top: 1px solid var(--glass-border);
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .navbar {
        padding: 12px 20px;
    }
    
    .logo {
        font-size: 1.25rem;
    }

    .nav-links { 
        display: none; 
    }
    
    .hero-content h1 { 
        font-size: 2.5rem; 
        margin-bottom: 16px;
    }
    
    .hero-content p {
        font-size: 1.1rem;
    }
    
    .section {
        padding: 60px 20px;
    }
    
    .section h2 {
        font-size: 2.2rem;
    }
    
    .glass-card {
        padding: 30px 20px;
    }
    
    /* Fix for download button on small screens */
    .download-btn {
        width: 100%;
        padding: 14px 20px;
        font-size: 1rem;
    }
    
    .download-btn svg {
        width: 20px;
        height: 20px;
    }
    
    .download-btn span {
        white-space: nowrap;
    }
}

@media (max-width: 400px) {
    .download-btn {
        font-size: 0.9rem;
        padding: 12px 16px;
    }
    
    .download-btn span {
        font-size: 0.95rem;
        white-space: normal;
        text-align: left;
    }
}