@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap');

* {
    font-family: 'Inter', sans-serif;
}

:root {
    --primary: #6366f1;
    --secondary: #a855f7;
    --success: #10b981;
    --danger: #ef4444;
}

body {
    background: linear-gradient(135deg, #f8faff 0%, #ffffff 100%);
}

.gradient-text {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.spinner {
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-top-color: white;
    border-radius: 50%;
    width: 20px;
    height: 20px;
    animation: spin 1s linear infinite;
}

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

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
}

.pulse-animation {
    animation: pulse 2s ease-in-out infinite;
}

.progress-glow {
    box-shadow: 0 0 20px rgba(99, 102, 241, 0.3);
}

.upload-zone:hover {
    border-color: var(--primary);
    background-color: rgba(99, 102, 241, 0.05);
}

.format-btn.active {
    border-color: var(--primary);
    background-color: rgba(99, 102, 241, 0.05);
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
    background: #c7d2fe;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #818cf8;
}

/* SEO Friendly Hidden Text */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}