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

:root {
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --text-primary: #0f172a;
    --text-secondary: #64748b;
    --border-color: #e2e8f0;
    --card-bg: #f8fafc;
    --accent-color: #0f172a;
    --accent-text: #ffffff;
}

.dark {
    --bg-primary: #030712;
    --bg-secondary: #0f172a;
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --border-color: #1e293b;
    --card-bg: #0f172a;
    --accent-color: #ffffff;
    --accent-text: #0f172a;
}

body {
    font-family: 'Plus Jakarta Sans', sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    -webkit-tap-highlight-color: transparent;
    transition: background-color 0.3s ease, color 0.3s ease;
}

/* Custom Scrollbars */
.no-scrollbar::-webkit-scrollbar {
    display: none;
}
.no-scrollbar {
    -ms-overflow-style: none;
    scrollbar-width: none;
}

::-webkit-scrollbar {
    width: 5px;
    height: 5px;
}
::-webkit-scrollbar-track {
    background: transparent;
}
::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 10px;
}

/* Ripple Effect for Buttons */
.ripple-btn {
    position: relative;
    overflow: hidden;
    transform: translate3d(0, 0, 0);
    transition: all 0.2s ease-in-out;
}

.ripple-btn:active {
    transform: scale(0.96);
}

.ripple-btn::after {
    content: "";
    display: block;
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    pointer-events: none;
    background-image: radial-gradient(circle, rgba(255, 255, 255, 0.4) 10%, transparent 10.01%);
    background-repeat: no-repeat;
    background-position: 50%;
    transform: scale(10, 10);
    opacity: 0;
    transition: transform 0.5s, opacity 1s;
}

.ripple-btn:active::after {
    transform: scale(0, 0);
    opacity: 0.3;
    transition: 0s;
}

/* Glassmorphism & Modern Shadows */
.glass-panel {
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--border-color);
}

.dark .glass-panel {
    background: rgba(15, 23, 42, 0.7);
}

/* Premium Card Hover Glow */
.book-card {
    transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}
.book-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.08);
    border-color: var(--text-secondary);
}

/* Smooth Pulse Animation for Loaders */
@keyframes pulse-ring {
    0% {
        transform: scale(0.95);
        box-shadow: 0 0 0 0 rgba(15, 23, 42, 0.4);
    }
    70% {
        transform: scale(1);
        box-shadow: 0 0 0 15px rgba(15, 23, 42, 0);
    }
    100% {
        transform: scale(0.95);
        box-shadow: 0 0 0 0 rgba(15, 23, 42, 0);
    }
}

.avatar-pulse {
    animation: pulse-ring 2s infinite cubic-bezier(0.4, 0, 0.6, 1);
}