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

body {
    background: linear-gradient(135deg, #5a5a5a 0%, #4d4d4d 50%, #3e3e3e 100%);
    font-family: "Special Gothic Expanded One", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    min-height: 100vh;
    position: relative;
    overflow-x: hidden;
}

body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 50%, rgba(100, 120, 140, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(70, 80, 90, 0.2) 0%, transparent 50%);
    pointer-events: none;
    animation: pulse 8s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 0.5; }
    50% { opacity: 0.8; }
}

.site_nav {
    font-size: clamp(2rem, 5vw, 4rem);
    width: 100%;
    padding: 1.5rem 2rem;
    background: linear-gradient(180deg, #1a1a1a 0%, #333333 100%);
    text-align: center;
    color: white;
    font-weight: bolder;
    box-shadow: 0 0.5rem 2rem rgba(0, 0, 0, 0.5);
    position: relative;
    z-index: 100;
    letter-spacing: 0.1em;
    text-shadow: 0 0.25rem 1rem rgba(231, 57, 26, 0.4);
    -webkit-text-stroke: 0.2rem rgba(0, 0, 0, 0.7);
}

main {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: calc(100vh - 200px);
    padding: 2rem;
    position: relative;
    z-index: 10;
    gap: 3rem;
}

.shark_pic {
    border: 0.375rem solid rgba(255, 255, 255, 0.9);
    border-radius: 20%;
    box-shadow: 
        0 1rem 3rem rgba(0, 0, 0, 0.5),
        0 0 3rem rgba(220, 38, 38, 0.2),
        inset 0 0 2rem rgba(255, 255, 255, 0.1);
    max-width: 300px;
    width: 90%;
    height: auto;
    margin-bottom: 0;
    transition: all 0.4s ease;
    animation: float 6s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    50% { transform: translateY(-20px) rotate(2deg); }
}

.shark_pic:hover {
    transform: scale(1.05) rotate(-2deg);
    box-shadow: 
        0 1.5rem 4rem rgba(0, 0, 0, 0.6),
        0 0 4rem rgba(220, 38, 38, 0.4),
        inset 0 0 2rem rgba(255, 255, 255, 0.15);
}

.download_section {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.5rem;
}

.button_main {
    color: white;
    background: linear-gradient(135deg, #dc2626 0%, #b91c1c 100%);
    font-size: clamp(1.5rem, 3vw, 3rem);
    font-weight: bolder;
    border-radius: 1rem;
    box-shadow: 
        0 0.625rem 1.25rem rgba(0, 0, 0, 0.4),
        0 0 2rem rgba(220, 38, 38, 0.3),
        inset 0 -0.25rem 1rem rgba(0, 0, 0, 0.2);
    padding: 2rem 4rem;
    border: 0.25rem solid #dc2626;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-block;
    position: relative;
    overflow: hidden;
}

.button_main::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 0.5s ease;
}

.button_main:hover::before {
    left: 100%;
}

.button_main:hover {
    transform: translateY(-0.5rem) scale(1.05);
    box-shadow: 
        0 1rem 2rem rgba(0, 0, 0, 0.5),
        0 0 3rem rgba(220, 38, 38, 0.5),
        inset 0 -0.25rem 1rem rgba(0, 0, 0, 0.2);
}

.button_main:active {
    transform: translateY(-0.25rem) scale(1.02);
}

.download_info {
    text-align: center;
    color: rgba(255, 255, 255, 0.9);
    font-size: clamp(1rem, 2vw, 1.5rem);
    max-width: 600px;
    line-height: 1.6;
    text-shadow: 0 0.125rem 0.5rem rgba(0, 0, 0, 0.5);
    padding: 1.5rem;
    background: rgba(51, 51, 51, 0.3);
    border-radius: 1rem;
    backdrop-filter: blur(10px);
    border: 0.125rem solid rgba(255, 255, 255, 0.1);
}

.download_info strong {
    color: #dc2626;
    font-weight: bolder;
}

.description {
    max-width: 800px;
    text-align: center;
    color: rgba(255, 255, 255, 0.95);
}

.description h2 {
    font-size: clamp(1.75rem, 3vw, 2.5rem);
    margin-bottom: 1rem;
    color: white;
    text-shadow: 0 0.125rem 0.5rem rgba(0, 0, 0, 0.5);
}

.description p {
    font-size: clamp(1rem, 2vw, 1.25rem);
    line-height: 1.7;
    text-shadow: 0 0.125rem 0.5rem rgba(0, 0, 0, 0.5);
}

.features {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
    max-width: 1200px;
    width: 100%;
    padding: 0 1rem;
}

.feature {
    background: rgba(51, 51, 51, 0.4);
    padding: 1.5rem;
    border-radius: 0.75rem;
    border: 0.125rem solid rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
}

.feature:hover {
    transform: translateY(-0.25rem);
    background: rgba(51, 51, 51, 0.5);
    border-color: rgba(255, 255, 255, 0.2);
}

.feature h3 {
    color: #dc2626;
    font-size: clamp(1.125rem, 2vw, 1.5rem);
    margin-bottom: 0.5rem;
    text-shadow: 0 0.125rem 0.5rem rgba(0, 0, 0, 0.5);
}

.feature p {
    color: rgba(255, 255, 255, 0.85);
    font-size: clamp(0.9rem, 1.5vw, 1.125rem);
    line-height: 1.5;
}

.tagline {
    max-width: 700px;
    text-align: center;
    padding: 1rem 2rem;
    background: rgba(220, 38, 38, 0.1);
    border-radius: 0.75rem;
    border: 0.125rem solid rgba(220, 38, 38, 0.3);
}

.tagline p {
    color: rgba(255, 255, 255, 0.9);
    font-size: clamp(1rem, 2vw, 1.25rem);
    font-style: italic;
    line-height: 1.6;
}

footer {
    position: relative;
    bottom: 0;
    width: 100%;
    text-align: center;
    padding: 2rem;
    background: linear-gradient(180deg, transparent 0%, rgba(26, 26, 26, 0.8) 100%);
    color: rgba(255, 255, 255, 0.7);
    font-size: clamp(0.875rem, 1.5vw, 1.125rem);
    z-index: 100;
}

@media (max-width: 768px) {
    .shark_pic {
        max-width: 200px;
        margin-bottom: 2rem;
    }
    
    .button_main {
        padding: 1.5rem 3rem;
    }
    
    .download_info {
        font-size: 1rem;
        padding: 1rem;
    }
    
    .features {
        grid-template-columns: 1fr;
    }
    
    .description, .tagline {
        padding: 1rem;
    }
}

@media (min-width: 769px) and (max-width: 1024px) {
    .features {
        grid-template-columns: repeat(2, 1fr);
    }
}