:root {
    --primary: #0984e3;
    --primary-dark: #0747a6;
    --bg: #f8f9fa;
}

body {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 80px;
    height: 100vh;
    margin: 0;
    background-color: var(--bg);
    font-family: 'Segoe UI', system-ui, sans-serif;
}

.btn-premium {
    position: relative;
    padding: 18px 45px;
    font-size: 1.2rem;
    font-weight: 700;
    color: white;
    background-color: var(--primary);
    border: none;
    border-radius: 15px;
    cursor: pointer;
    outline: none;
    transition: all 0.2s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    box-shadow: 0 10px 0 #06528e, 0 15px 20px rgba(0, 0, 0, 0.2);
}

.btn-premium:hover {
    transform: translateY(-2px);
    background-color: #0a8df0;
    box-shadow: 0 12px 0 #06528e, 0 20px 25px rgba(0, 0, 0, 0.2);
}
.btn-premium:active {
    transform: translateY(8px);
    box-shadow: 0 2px 0 #06528e, 0 5px 10px rgba(0, 0, 0, 0.2);
    }
.loader-box {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
}
.spinner-modern {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: conic-gradient(from 0deg, transparent 30%, var(--primary));
    -webkit-mask: radial-gradient(farthest-side, transparent calc(100% - 7px), #000 0);
    mask: radial-gradient(farthest-side, transparent calc(100% - 7px), #000 0);
    animation: spin-smooth 0.8s infinite linear;
}

@keyframes spin-smooth {
    to { 
        transform: rotate(360deg);
    }
}

.loading-text {
    font-weight: 600;
    letter-spacing: 1px;
    color: #636e72;
    text-transform: uppercase;
    font-size: 0.8rem;
    animation: pulse-text 1.5s ease-in-out infinite;
}

@keyframes pulse-text {
    0%, 100% { 
        opacity: 0.4; 
    }
    50% { 
        opacity: 1; 
    }
}