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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #005f5a 0%, #003d3a 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    overflow-x: hidden;
}

.container {
    text-align: center;
    padding: 2rem;
    max-width: 800px;
    animation: fadeInUp 0.8s ease-out;
}

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

.logo {
    width: 80px;
    height: 80px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    margin: 0 auto 2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    backdrop-filter: blur(10px);
    border: 2px solid rgba(255, 255, 255, 0.2);
    animation: float 3s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-10px); }
}

h1 {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    background: linear-gradient(45deg, #fff, #f0f0f0);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

.subtitle {
    font-size: 1.3rem;
    margin-bottom: 3rem;
    opacity: 0.9;
    line-height: 1.6;
    font-weight: 300;
}

.buttons-container {
    display: flex;
    flex-direction: row;
    gap: 2rem;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
}

.btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    padding: 2rem 1.5rem;
    font-size: 1.1rem;
    font-weight: 600;
    text-decoration: none;
    border-radius: 20px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    width: 200px;
    height: 200px;
    position: relative;
    overflow: hidden;
    border: none;
    cursor: pointer;
    backdrop-filter: blur(10px);
}

.btn-icon {
    font-size: 3rem;
    margin-bottom: 0.5rem;
    transition: transform 0.3s ease;
}

.btn:hover .btn-icon {
    transform: scale(1.1) rotate(5deg);
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s;
}

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

.btn-white {
    background: linear-gradient(135deg, #ffffff, #ffffff);
    color: black;
    box-shadow: 0 8px 32px rgba(255, 107, 107, 0.3);
}

.btn-white:hover {
    transform: translateY(-3px) scale(1.02);
    box-shadow: 0 12px 40px rgba(255, 107, 107, 0.4);
}

.btn-primary {
    background: linear-gradient(135deg, #ff6b6b, #ee5a24);
    color: white;
    box-shadow: 0 8px 32px rgba(255, 107, 107, 0.3);
}

.btn-primary:hover {
    transform: translateY(-3px) scale(1.02);
    box-shadow: 0 12px 40px rgba(255, 107, 107, 0.4);
}

.btn-secondary {
    background: linear-gradient(135deg, #4ecdc4, #44a08d);
    color: white;
    box-shadow: 0 8px 32px rgba(78, 205, 196, 0.3);
}

.btn-secondary:hover {
    transform: translateY(-3px) scale(1.02);
    box-shadow: 0 12px 40px rgba(78, 205, 196, 0.4);
}

.btn-tertiary {
    background: rgba(255, 255, 255, 0.1);
    color: white;
    border: 2px solid rgba(255, 255, 255, 0.3);
    box-shadow: 0 8px 32px rgba(255, 255, 255, 0.1);
}

.btn-tertiary:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-3px) scale(1.02);
    box-shadow: 0 12px 40px rgba(255, 255, 255, 0.2);
}

.particles {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    z-index: -1;
}

.particle {
    position: absolute;
    width: 4px;
    height: 4px;
    background: rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    animation: float-particles 6s infinite linear;
}

@keyframes float-particles {
    0% {
        transform: translateY(100vh) rotate(0deg);
        opacity: 1;
    }
    100% {
        transform: translateY(-10vh) rotate(360deg);
        opacity: 0;
    }
}

.particle:nth-child(1) { left: 20%; animation-delay: 0s; }
.particle:nth-child(2) { left: 40%; animation-delay: 2s; }
.particle:nth-child(3) { left: 60%; animation-delay: 4s; }
.particle:nth-child(4) { left: 80%; animation-delay: 1s; }
.particle:nth-child(5) { left: 10%; animation-delay: 3s; }

@media (min-width: 768px) {
    .buttons-container {
        flex-direction: row;
        justify-content: center;
        flex-wrap: wrap;
    }
    
    h1 {
        font-size: 4.5rem;
    }
}

@media (max-width: 768px) {
    .buttons-container {
        flex-direction: column;
        gap: 1.5rem;
    }
    
    .btn {
        width: 180px;
        height: 180px;
        padding: 1.5rem 1rem;
    }
}

@media (max-width: 480px) {
    h1 {
        font-size: 2.5rem;
    }
    
    .subtitle {
        font-size: 1.1rem;
    }
    
    .btn {
        width: 160px;
        height: 160px;
        padding: 1.2rem 0.8rem;
    }
    
    .btn-icon {
        font-size: 2.5rem;
    }
}