/* Thư viện dùng chung – New Theme TT */
.ntt-lib {
	--ntt-ink: #2d2424;
	--ntt-paper: #fbf6ef;
	--ntt-accent: #b85c38;
	--ntt-line: #e2d6c8;
	--ntt-muted: #6f6464;
	color: var(--ntt-ink);
	font-family: var(--wp--preset--font-family--manrope, "Manrope", system-ui, sans-serif);
	line-height: 1.5;
}
.ntt-lib h1,
.ntt-lib h2,
.ntt-lib h3 {
	font-family: var(--wp--preset--font-family--dm-serif, "DM Serif Display", "Playfair Display", serif);
	font-weight: 400;
	line-height: 1.2;
	margin: 0 0 .5em;
}
.ntt-lib h1 { font-size: clamp(1.9rem, 4vw, 2.8rem); }
.ntt-lib h2 { font-size: clamp(1.4rem, 3vw, 1.9rem); }
.ntt-lib h3 { font-size: 1.1rem; }
.ntt-lib p { margin: 0 0 .75em; }
.ntt-lead { color: var(--ntt-muted); }
.ntt-small { font-size: .85rem; color: var(--ntt-muted); }
.ntt-eyebrow { text-transform: uppercase; letter-spacing: .12em; font-size: .75rem; color: var(--ntt-accent); margin: 0 0 .25rem; }
.ntt-empty { color: var(--ntt-muted); padding: 2rem 0; }

.ntt-notice {
	background: #fff3e6; border-left: 3px solid var(--ntt-accent);
	padding: .6rem .8rem; border-radius: 6px; font-size: .95rem;
}

/* Khung & form */
.ntt-card-panel {
	background: #fff; border: 1px solid var(--ntt-line); border-radius: 14px;
	padding: clamp(20px, 3vw, 32px); box-shadow: 0 10px 30px rgba(45, 36, 36, .06);
}
.ntt-auth { display: grid; gap: 24px; grid-template-columns: repeat(auto-fit, minmax(min(100%, 320px), 1fr)); max-width: 880px; margin: 0 auto; }
.ntt-form { display: grid; gap: 14px; }
.ntt-form label { display: grid; gap: 6px; font-size: .9rem; font-weight: 600; }
.ntt-form label.ntt-check { display: flex; align-items: center; gap: 8px; font-weight: 400; }
.ntt-form input[type="email"],
.ntt-form input[type="password"],
.ntt-form input[type="text"] {
	width: 100%; padding: .7rem .8rem; border: 1px solid #cbbcab; border-radius: 8px;
	font: inherit; background: #fffdf9; color: var(--ntt-ink);
}
.ntt-form input:focus { outline: 2px solid var(--ntt-accent); outline-offset: 1px; }

/* Nút */
.ntt-btn {
	display: inline-flex; align-items: center; justify-content: center; gap: 6px;
	padding: .7rem 1.2rem; border-radius: 999px; border: 1px solid var(--ntt-ink);
	background: var(--ntt-ink); color: #fff; font: inherit; font-weight: 600;
	text-decoration: none; cursor: pointer; transition: transform .2s ease, background .2s ease, color .2s ease;
}
.ntt-btn:hover { transform: translateY(-1px); background: var(--ntt-accent); border-color: var(--ntt-accent); color: #fff; }
.ntt-btn--ghost { background: transparent; color: var(--ntt-ink); }
.ntt-btn--ghost:hover { background: var(--ntt-ink); color: #fff; }

/* Đầu trang thư viện */
.ntt-lib-head { display: flex; flex-wrap: wrap; gap: 16px; align-items: flex-end; justify-content: space-between; margin-bottom: 24px; }

/* Bộ lọc */
.ntt-filters { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; margin: 0 0 14px; }
.ntt-filters__label { font-size: .8rem; text-transform: uppercase; letter-spacing: .08em; color: var(--ntt-muted); width: 88px; }
.ntt-chip {
	display: inline-block; padding: .4rem .9rem; border-radius: 999px; border: 1px solid var(--ntt-line);
	text-decoration: none; color: var(--ntt-ink); font-size: .9rem; background: #fff;
	transition: background .2s ease, color .2s ease, border-color .2s ease;
}
.ntt-chip:hover { border-color: var(--ntt-accent); }
.ntt-chip.is-active { background: var(--ntt-ink); border-color: var(--ntt-ink); color: #fff; }

/* Nhóm thương hiệu & lưới tài liệu */
.ntt-brand { margin: 36px 0 8px; padding-top: 18px; border-top: 1px solid var(--ntt-line); }
.ntt-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(min(100%, 230px), 1fr)); gap: 18px; }
.ntt-card {
	background: #fff; border: 1px solid var(--ntt-line); border-radius: 12px; overflow: hidden;
	display: flex; flex-direction: column; transition: transform .25s ease, box-shadow .25s ease;
}
.ntt-card:hover { transform: translateY(-3px); box-shadow: 0 14px 28px rgba(45, 36, 36, .10); }
.ntt-card__thumb { aspect-ratio: 4 / 3; background: #efe6da; display: grid; place-items: center; overflow: hidden; }
.ntt-card__thumb img { width: 100%; height: 100%; object-fit: cover; display: block; }
.ntt-card__ext { font-weight: 700; letter-spacing: .1em; color: var(--ntt-accent); font-size: 1.1rem; }
.ntt-card__body { padding: 14px 16px 16px; display: flex; flex-direction: column; gap: 6px; flex: 1; }
.ntt-card__body h3 { font-size: 1.02rem; margin: 0; }
.ntt-card__actions { margin-top: auto; display: flex; gap: 8px; padding-top: 8px; flex-wrap: wrap; }
.ntt-card__actions .ntt-btn { padding: .5rem .9rem; font-size: .88rem; }
.ntt-tag {
	align-self: flex-start; font-size: .72rem; text-transform: uppercase; letter-spacing: .08em;
	background: #f3e7d9; color: var(--ntt-accent); padding: .2rem .55rem; border-radius: 999px;
}

@media (max-width: 480px) {
	.ntt-filters__label { width: 100%; }
}