:root {
    --bg-color: #050505;
    --text-primary: #ffffff;
    --text-secondary: #a1a1aa;
    --wa-start: #25D366;
    --wa-end: #128C7E;
    --card-bg: rgba(20, 20, 22, 0.65);
    --card-border: rgba(255, 255, 255, 0.08);
}

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

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-primary);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
    overflow: hidden;
}

/* Mesh Gradient Background Effect */
.mesh-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: -1;
    background: 
        radial-gradient(circle at 15% 50%, rgba(37, 211, 102, 0.08), transparent 50%),
        radial-gradient(circle at 85% 30%, rgba(255, 255, 255, 0.03), transparent 50%),
        radial-gradient(circle at 50% 80%, rgba(18, 140, 126, 0.1), transparent 50%);
    filter: blur(60px);
    animation: pulseBg 10s ease-in-out infinite alternate;
}

@keyframes pulseBg {
    0% { transform: scale(1); opacity: 0.8; }
    100% { transform: scale(1.1); opacity: 1; }
}

.container {
    width: 100%;
    max-width: 700px;
    padding: 20px;
    z-index: 1;
}

.modern-card {
    background: var(--card-bg);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    border: 1px solid var(--card-border);
    border-radius: 32px;
    padding: 60px 50px;
    text-align: center;
    box-shadow: 0 30px 60px rgba(0, 0, 0, 0.4), inset 0 1px 0 rgba(255,255,255,0.1);
    transform: translateY(0);
    transition: all 0.5s cubic-bezier(0.2, 0.8, 0.2, 1);
}

.modern-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 40px 80px rgba(0, 0, 0, 0.6), inset 0 1px 0 rgba(255,255,255,0.15);
    border: 1px solid rgba(255, 255, 255, 0.12);
}

/* Outstanding Logo */
.logo-container {
    position: relative;
    margin-bottom: 45px;
    display: inline-block;
}

.logo-container::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 200px;
    height: 200px;
    background: var(--wa-start);
    opacity: 0.15;
    filter: blur(40px);
    border-radius: 50%;
    z-index: -1;
    animation: glowPulse 3s infinite alternate;
}

@keyframes glowPulse {
    0% { transform: translate(-50%, -50%) scale(0.9); opacity: 0.1; }
    100% { transform: translate(-50%, -50%) scale(1.2); opacity: 0.25; }
}

.logo {
    width: 180px;
    height: 180px;
    object-fit: cover;
    border-radius: 50%;
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.5), 0 0 0 4px rgba(255, 255, 255, 0.05);
    transition: transform 0.5s cubic-bezier(0.2, 0.8, 0.2, 1), box-shadow 0.5s ease;
    display: block;
}

.logo:hover {
    transform: scale(1.05);
    box-shadow: 0 20px 45px rgba(0, 0, 0, 0.6), 0 0 0 4px rgba(255, 255, 255, 0.1);
}

.badge {
    display: inline-block;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    padding: 6px 16px;
    border-radius: 50px;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 2px;
    color: var(--text-secondary);
    margin-bottom: 25px;
}

h1 {
    font-size: 3rem;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 20px;
    letter-spacing: -1px;
}

h1 span {
    background: linear-gradient(to right, #ffffff, #a1a1aa);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.subtitle {
    font-size: 1.15rem;
    font-weight: 400;
    line-height: 1.7;
    color: var(--text-secondary);
    margin-bottom: 45px;
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
}

/* Detailed WhatsApp Button */
.whatsapp-btn {
    display: inline-flex;
    align-items: center;
    background: linear-gradient(135deg, var(--wa-start), var(--wa-end));
    padding: 12px 35px 12px 15px;
    border-radius: 60px;
    text-decoration: none;
    color: white;
    gap: 20px;
    box-shadow: 0 12px 30px rgba(37, 211, 102, 0.25);
    transition: all 0.4s cubic-bezier(0.2, 0.8, 0.2, 1);
    border: 1px solid rgba(255, 255, 255, 0.15);
    position: relative;
    overflow: hidden;
}

.whatsapp-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(255,255,255,0.1), rgba(255,255,255,0));
    opacity: 0;
    transition: opacity 0.4s ease;
}

.whatsapp-btn:hover {
    transform: translateY(-4px) scale(1.02);
    box-shadow: 0 20px 40px rgba(37, 211, 102, 0.35);
}

.whatsapp-btn:hover::before {
    opacity: 1;
}

.wa-icon-wrapper {
    background: rgba(255, 255, 255, 0.2);
    width: 55px;
    height: 55px;
    display: flex;
    justify-content: center;
    align-items: center;
    border-radius: 50%;
    font-size: 1.8rem;
    backdrop-filter: blur(5px);
    box-shadow: 0 4px 10px rgba(0,0,0,0.1);
}

.wa-text-wrapper {
    display: flex;
    flex-direction: column;
    text-align: left;
    z-index: 1;
}

.wa-text {
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    opacity: 0.9;
    font-weight: 600;
    margin-bottom: 2px;
}

.wa-number {
    font-size: 1.35rem;
    font-weight: 800;
    letter-spacing: 0.5px;
}

@media (max-width: 600px) {
    .modern-card {
        padding: 40px 25px;
        border-radius: 24px;
    }
    
    h1 {
        font-size: 2.2rem;
    }
    
    .logo {
        width: 140px;
        height: 140px;
    }
    
    .logo-container::after {
        width: 160px;
        height: 160px;
    }
    
    .whatsapp-btn {
        padding: 10px 25px 10px 10px;
        gap: 15px;
    }
    
    .wa-icon-wrapper {
        width: 45px;
        height: 45px;
        font-size: 1.4rem;
    }
    
    .wa-number {
        font-size: 1.15rem;
    }
}