/* GK Articoli Scientifici — solo font di sistema */
.gkp {
	--gk-black: #010101;
	--gk-yellow: #FFE010;
	--gk-ink-2: #292927;
	--gk-ink-3: #4C4C4B;
	--gk-muted: #828282;
	--gk-line: #E1E1E1;
	--gk-soft: #EBEBEA;
	font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
	--gk-mono: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
	color: var(--gk-black);
	font-size: 16px;
	line-height: 1.5;
	max-width: 1080px;
	margin: 0 auto;
	-webkit-font-smoothing: antialiased;
}
.gkp *, .gkp *::before, .gkp *::after { box-sizing: border-box; }
.gkp [hidden] { display: none !important; }
.gkp .screen-reader-text { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }

.gkp-head { margin: 0 0 32px; }
.gkp-eyebrow { margin: 0 0 8px; font-size: 13px; font-weight: 700; letter-spacing: .14em; text-transform: uppercase; color: var(--gk-ink-3); }
.gkp-title { margin: 0 0 12px; font-family: inherit; font-size: clamp(32px, 4vw, 44px); font-weight: 700; line-height: 1.08; letter-spacing: -.02em; color: var(--gk-black); }
.gkp-intro { margin: 0; max-width: 60ch; font-size: 18px; color: var(--gk-ink-2); text-wrap: pretty; }

.gkp-toolbar { display: flex; flex-direction: column; gap: 16px; padding: 20px 0; border-top: 2px solid var(--gk-black); border-bottom: 1px solid var(--gk-line); margin-bottom: 8px; }
.gkp-search input {
	width: 100%; max-width: 420px; height: 44px; padding: 0 14px;
	font: inherit; font-size: 15px; color: var(--gk-black);
	background: #fff; border: 1px solid #BBBBBB; border-radius: 4px; outline: none;
}
.gkp-search input:focus { border-color: var(--gk-black); box-shadow: 0 0 0 3px var(--gk-yellow); }
.gkp-chips { display: flex; flex-wrap: wrap; gap: 8px; }
.gkp-chip {
	display: inline-flex; align-items: center; gap: 8px; min-height: 36px; padding: 0 14px;
	font: inherit; font-size: 14px; font-weight: 500; line-height: 1; color: var(--gk-ink-2);
	background: var(--gk-soft); border: 1px solid transparent; border-radius: 999px; cursor: pointer;
	transition: background-color .15s, border-color .15s;
}
.gkp-chip span { font-family: var(--gk-mono); font-size: 12px; color: var(--gk-muted); }
.gkp-chip:hover { border-color: var(--gk-black); }
.gkp-chip.is-active { background: var(--gk-black); color: #fff; }
.gkp-chip.is-active span { color: var(--gk-yellow); }
.gkp-years { display: flex; flex-wrap: wrap; align-items: center; gap: 6px; }
.gkp-years-label { font-size: 13px; font-weight: 700; letter-spacing: .14em; text-transform: uppercase; color: var(--gk-ink-3); margin-right: 6px; }
.gkp-yearbtn {
	min-height: 36px; min-width: 56px; padding: 0 10px; font-family: var(--gk-mono); font-size: 14px; font-weight: 500; line-height: 1;
	color: var(--gk-black); background: #fff; border: 1px solid #BBBBBB; border-radius: 4px; cursor: pointer; transition: background-color .15s, border-color .15s;
}
.gkp-yearbtn:hover { border-color: var(--gk-black); }
.gkp-yearbtn.is-active { background: var(--gk-yellow); border-color: var(--gk-yellow); font-weight: 700; }
.gkp-more {
	grid-column: 2; justify-self: start; margin: 12px 0 0 16px; min-height: 44px; padding: 0 18px;
	font: inherit; font-size: 15px; font-weight: 700; color: var(--gk-black); background: var(--gk-soft); border: 0; border-radius: 4px; cursor: pointer; transition: background-color .15s, color .15s;
}
.gkp-more:hover, .gkp-more:focus-visible { background: var(--gk-black); color: var(--gk-yellow); outline: none; }
.gkp-count { margin: 0; font-family: var(--gk-mono); font-size: 13px; color: var(--gk-muted); }

.gkp-year { display: grid; grid-template-columns: 140px minmax(0, 1fr); gap: 0 32px; padding: 28px 0; border-bottom: 1px solid var(--gk-line); }
.gkp-year-label { margin: 0; font-family: var(--gk-mono); font-size: 28px; font-weight: 500; line-height: 1.2; letter-spacing: -.02em; color: var(--gk-black); position: sticky; top: 24px; align-self: start; }
.gkp-list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 4px; }
.gkp-item { margin: 0; padding: 14px 16px; border-radius: 6px; transition: background-color .2s; }
.gkp-item:hover { background: var(--gk-soft); }
.gkp-item.is-highlight { background: #FFF6B0; }
.gkp-item-title {
	display: inline; font-size: 18px; font-weight: 700; line-height: 1.35; color: var(--gk-black);
	text-decoration: none; text-wrap: pretty;
	background-image: linear-gradient(var(--gk-yellow), var(--gk-yellow)); background-size: 0 35%; background-position: 0 88%; background-repeat: no-repeat;
	transition: background-size .2s;
}
.gkp-item-title:hover, .gkp-item-title:focus-visible { background-size: 100% 35%; color: var(--gk-black); outline: none; }
.gkp-item-title::after { content: " \2197"; font-weight: 400; color: var(--gk-muted); }
.gkp-meta { margin: 6px 0 0; font-size: 14px; color: var(--gk-ink-3); display: flex; flex-wrap: wrap; gap: 0 12px; }
.gkp-journal { font-style: italic; }
.gkp-authors + .gkp-journal::before { content: "·"; font-style: normal; margin-right: 12px; color: #A1A1A1; }
.gkp-tags { display: flex; flex-wrap: wrap; align-items: center; gap: 6px; margin-top: 10px; }
.gkp-tag, .gkp-system, .gkp-pdf, .gkp-source { font-size: 12px; line-height: 1; padding: 5px 8px; border-radius: 3px; }
.gkp-tag { background: #fff; border: 1px solid var(--gk-line); color: var(--gk-ink-3); }
.gkp-system { background: var(--gk-yellow); color: var(--gk-black); font-weight: 700; font-family: var(--gk-mono); }
.gkp-pdf { background: var(--gk-black); color: #fff; font-weight: 700; text-decoration: none; }
.gkp-pdf:hover { color: var(--gk-yellow); }
.gkp-source { color: var(--gk-muted); padding-left: 2px; }
.gkp-empty { padding: 48px 0; text-align: center; color: var(--gk-muted); }

@media (max-width: 720px) {
	.gkp-year { grid-template-columns: minmax(0, 1fr); gap: 8px; }
	.gkp-year-label { position: static; font-size: 24px; }
	.gkp-item { padding: 12px 0; }
	.gkp-item:hover { background: none; }
	.gkp-more { grid-column: 1; margin-left: 0; }
}