:root {
    --primary-gold: #FFAD06;
    --dark-orange: #FF6600;
    --card-bg: rgba(255, 255, 255, 0.05);
}

/* --- Background Pinterest Dark Mode --- */
.lib-page-container {
    background: 
        linear-gradient(rgba(15, 15, 15, 0.88), rgba(0, 0, 0, 0.95)), 
        url('https://i.pinimg.com/736x/0f/66/c1/0f66c18b8ef49cf51225a13b55e21f4b.jpg') !important;
    background-size: cover !important;
    background-position: center !important;
    background-attachment: fixed !important;
    min-height: 100vh;
    padding: 160px 0 100px;
    color: #fff;
}

.lib-inner { max-width: 1200px; margin: 0 auto; padding: 0 20px; }

/* --- Header --- */
.lib-header { text-align: center; margin-bottom: 60px; }
.lib-pre-title { color: var(--primary-gold); text-transform: uppercase; letter-spacing: 3px; font-size: 14px; font-weight: 600; }
.lib-main-title { font-size: 48px; font-weight: 800; margin: 15px 0; color: #fff; }
.text-gradient {
    background: linear-gradient(90deg, var(--primary-gold), var(--dark-orange));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}
.lib-desc { color: #aaa; max-width: 600px; margin: 0 auto 40px; line-height: 1.6; }

/* --- Filter Bar --- */
.lib-filter-bar { display: flex; justify-content: center; gap: 15px; flex-wrap: wrap; margin-bottom: 50px; }
.lib-filter-btn {
    background: rgba(255,255,255,0.05); border: 1px solid rgba(255,255,255,0.1);
    color: #fff; padding: 12px 28px; border-radius: 30px; cursor: pointer; transition: 0.3s;
}
.lib-filter-btn.active, .lib-filter-btn:hover {
    background: var(--dark-orange); border-color: var(--dark-orange); transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(255, 102, 0, 0.3);
}

/* --- Card Grid --- */
.lib-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 30px; }
.lib-card-inner {
    background: var(--card-bg); border: 1px solid rgba(255,255,255,0.08);
    padding: 30px; border-radius: 20px; transition: 0.4s;
    backdrop-filter: blur(10px); height: 100%; display: flex; flex-direction: column;
}
.lib-card:hover .lib-card-inner {
    background: rgba(255, 173, 6, 0.05); border-color: var(--primary-gold);
    transform: translateY(-10px); box-shadow: 0 15px 40px rgba(0,0,0,0.5);
}

/* Icon & Title */
.icon-circle {
    width: 60px; height: 60px; background: rgba(255,255,255,0.03);
    border-radius: 50%; display: flex; align-items: center; justify-content: center;
    margin-bottom: 20px; transition: 0.5s;
}
.icon-circle img { width: 32px; height: 32px; }
.lib-card:hover .icon-circle { transform: rotateY(180deg); background: rgba(255, 173, 6, 0.2); }

.lib-file-title { font-size: 1.1rem; font-weight: 600; margin-bottom: 25px; min-height: 50px; line-height: 1.5; color: #fff; }
.lib-category-tag { font-size: 11px; text-transform: uppercase; color: var(--primary-gold); margin-bottom: 10px; display: block; }

/* Buttons */
.lib-card-footer { display: flex; gap: 10px; margin-top: auto; }
.btn-preview {
    flex: 1; padding: 12px; border-radius: 12px; border: 1px solid var(--primary-gold);
    background: transparent; color: var(--primary-gold); font-weight: 700; cursor: pointer; transition: 0.3s;
}
.btn-preview:hover { background: var(--primary-gold); color: #000; }

.btn-download-alt {
    width: 48px; height: 48px; border-radius: 12px; background: rgba(255,255,255,0.05);
    display: flex; align-items: center; justify-content: center; color: #fff; text-decoration: none; transition: 0.3s;
}
.btn-download-alt:hover { background: var(--dark-orange); transform: scale(1.1); }

/* --- Modal --- */
.lib-modal {
    position: fixed; top: 0; left: 0; width: 100%; height: 100%;
    display: flex; align-items: center; justify-content: center;
    opacity: 0; visibility: hidden; z-index: 9999; transition: 0.4s;
}
.lib-modal.active { opacity: 1; visibility: visible; }
.lib-modal-overlay { position: absolute; width: 100%; height: 100%; background: rgba(0,0,0,0.9); backdrop-filter: blur(5px); }
.lib-modal-body {
    position: relative; width: 90%; max-width: 900px; background: #1a1a1a;
    border-radius: 20px; overflow: hidden; border: 1px solid var(--primary-gold);
}
.close-modal-btn {
    position: absolute; right: 20px; top: 10px; color: #fff; font-size: 30px; cursor: pointer; z-index: 10;
}