/* ============================================================
   Dr. Grant R. Nickles — personal site
   Hand-authored stylesheet (2026 redesign)
   Palette: light + nature/fungal (cream, espresso, forest, spore-gold)
   Type: Fraunces (display serif) + Inter (body sans)
   ============================================================ */

/* ---------- Design tokens ---------- */
:root {
	/* surfaces */
	--paper:        #f7f1e7;   /* warm cream page background */
	--paper-alt:    #efe6d6;   /* deeper cream for alternating sections */
	--card:         #fffdf8;   /* near-white card surface */
	--card-warm:    #f3ead9;   /* tan card surface */

	/* ink */
	--ink:          #2b2620;   /* espresso near-black for text */
	--ink-soft:     #5c5347;   /* muted brown for secondary text */
	--ink-faint:    #8a8073;   /* faint brown for meta text */

	/* lines */
	--line:         #e2d6c1;   /* warm hairline */
	--line-strong:  #cdbfa4;

	/* accents */
	--forest:       #38583f;   /* primary: deep forest green */
	--forest-deep:  #2a4631;
	--moss:         #6f8b58;   /* lighter green */
	--spore:        #b9842b;   /* secondary: spore / amber gold */
	--spore-soft:   #d8a94a;
	--rust:         #a4552c;   /* tertiary: warm rust */

	/* effect */
	--shadow-sm: 0 1px 2px rgba(43, 38, 32, 0.06), 0 2px 8px rgba(43, 38, 32, 0.05);
	--shadow-md: 0 4px 16px rgba(43, 38, 32, 0.08), 0 12px 32px rgba(43, 38, 32, 0.06);
	--shadow-lg: 0 20px 60px rgba(43, 38, 32, 0.18);
	--radius:    14px;
	--radius-sm: 10px;
	--maxw:      1120px;

	--font-display: "Fraunces", Georgia, "Times New Roman", serif;
	--font-body:    "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
}

/* ---------- Reset / base ---------- */
*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; scroll-padding-top: 84px; -webkit-text-size-adjust: 100%; }

body {
	margin: 0;
	background: var(--paper);
	color: var(--ink);
	font-family: var(--font-body);
	font-size: 17px;
	line-height: 1.65;
	-webkit-font-smoothing: antialiased;
	-moz-osx-font-smoothing: grayscale;
	font-feature-settings: "kern" 1, "liga" 1;
}

img { max-width: 100%; display: block; }

a { color: var(--forest); text-decoration: none; transition: color .18s ease; }
a:hover { color: var(--spore); }

h1, h2, h3, h4 {
	font-family: var(--font-display);
	font-weight: 540;
	line-height: 1.12;
	color: var(--ink);
	margin: 0 0 .5em;
	font-optical-sizing: auto;
	letter-spacing: -0.01em;
}

p { margin: 0 0 1.1em; }
em { color: var(--ink-soft); }

/* ---------- Layout helpers ---------- */
.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 1.6rem; }

section { padding: 5.5rem 0; }
section.tight { padding: 4rem 0; }

.section-alt { background: var(--paper-alt); }

.eyebrow {
	font-family: var(--font-body);
	font-size: .78rem;
	font-weight: 600;
	letter-spacing: .14em;
	text-transform: uppercase;
	color: var(--spore);
	margin: 0 0 .9rem;
	display: flex;
	align-items: center;
	gap: .6rem;
}
.eyebrow::before {
	content: "";
	width: 26px; height: 2px;
	background: var(--spore);
	display: inline-block;
}

.section-head { max-width: 720px; margin-bottom: 3rem; }
.section-head h2 { font-size: clamp(2rem, 4vw, 2.9rem); }
.section-head p { color: var(--ink-soft); font-size: 1.05rem; margin-bottom: 0; }

/* ---------- Buttons ---------- */
.btn {
	display: inline-flex;
	align-items: center;
	gap: .55rem;
	font-family: var(--font-body);
	font-weight: 600;
	font-size: .95rem;
	padding: .72rem 1.4rem;
	border-radius: 999px;
	border: 1.5px solid transparent;
	cursor: pointer;
	transition: transform .15s ease, background .18s ease, color .18s ease, border-color .18s ease, box-shadow .18s ease;
	line-height: 1;
}
.btn:hover { transform: translateY(-2px); }
.btn-primary { background: var(--forest); color: #fff; box-shadow: var(--shadow-sm); }
.btn-primary:hover { background: var(--forest-deep); color: #fff; }
.btn-ghost { background: transparent; color: var(--forest); border-color: var(--line-strong); }
.btn-ghost:hover { color: var(--forest-deep); border-color: var(--forest); background: rgba(56,88,63,.06); }
.btn-gold { background: var(--spore); color: #fff; }
.btn-gold:hover { background: var(--rust); color: #fff; }

/* ============================================================
   Navigation
   ============================================================ */
.nav {
	position: sticky;
	top: 0;
	z-index: 1000;
	background: rgba(247, 241, 231, 0.82);
	backdrop-filter: saturate(160%) blur(12px);
	-webkit-backdrop-filter: saturate(160%) blur(12px);
	border-bottom: 1px solid transparent;
	transition: border-color .25s ease, box-shadow .25s ease, background .25s ease;
}
.nav.scrolled { border-color: var(--line); box-shadow: var(--shadow-sm); }
.nav-inner {
	max-width: var(--maxw);
	margin: 0 auto;
	padding: .85rem 1.6rem;
	display: flex;
	align-items: center;
	justify-content: space-between;
}
.brand {
	font-family: var(--font-display);
	font-weight: 600;
	font-size: 1.15rem;
	color: var(--ink);
	letter-spacing: -0.01em;
}
.brand span { color: var(--forest); }
.nav-links { display: flex; align-items: center; gap: 1.8rem; list-style: none; margin: 0; padding: 0; }
.nav-links a {
	font-size: .93rem;
	font-weight: 500;
	color: var(--ink-soft);
	position: relative;
}
.nav-links a:hover { color: var(--ink); }
.nav-links a::after {
	content: ""; position: absolute; left: 0; bottom: -6px;
	width: 0; height: 2px; background: var(--spore); transition: width .22s ease;
}
.nav-links a:hover::after { width: 100%; }
.nav-cv {
	padding: .5rem 1rem; border-radius: 999px;
	background: var(--forest); color: #fff !important; font-weight: 600;
}
.nav-cv:hover { background: var(--forest-deep); }
.nav-cv::after { display: none; }
.nav-toggle { display: none; background: none; border: 0; cursor: pointer; color: var(--ink); font-size: 1.4rem; }

/* ============================================================
   Hero
   ============================================================ */
.hero { position: relative; padding: 4.5rem 0 3rem; overflow: hidden; }
.hero::before {
	content: ""; position: absolute; inset: 0;
	background:
		radial-gradient(60% 55% at 82% 8%, rgba(184,132,43,.14), transparent 60%),
		radial-gradient(55% 50% at 8% 92%, rgba(56,88,63,.12), transparent 60%);
	pointer-events: none;
}
.hero-grid {
	position: relative;
	display: grid;
	grid-template-columns: 300px 1fr;
	gap: 3rem;
	align-items: center;
}
.hero-photo {
	width: 280px; height: 280px;
	border-radius: 50%;
	object-fit: cover;
	margin: 0 auto;
	box-shadow: var(--shadow-md);
	border: 5px solid var(--card);
	outline: 1px solid var(--line);
}
.hero h1 { font-size: clamp(2.4rem, 5vw, 3.6rem); margin-bottom: .35rem; }
.hero .role {
	font-size: 1.15rem; color: var(--forest); font-weight: 600;
	margin-bottom: 1.2rem; font-family: var(--font-body);
}
.hero .lede { font-size: 1.1rem; color: var(--ink-soft); max-width: 560px; margin-bottom: 1.6rem; }
.hero .affil { font-size: .95rem; color: var(--ink-faint); margin-bottom: 1.8rem; }
.hero .affil a { color: var(--ink-soft); border-bottom: 1px solid var(--line-strong); }
.hero .affil a:hover { color: var(--forest); }
.hero-actions { display: flex; flex-wrap: wrap; gap: .8rem; margin-bottom: 1.6rem; }

.social-row { display: flex; gap: .7rem; flex-wrap: wrap; }
.social-row a {
	width: 42px; height: 42px; border-radius: 50%;
	display: inline-flex; align-items: center; justify-content: center;
	background: var(--card); border: 1px solid var(--line);
	color: var(--ink-soft); font-size: 1.05rem;
	transition: transform .15s ease, background .18s ease, color .18s ease, border-color .18s;
}
.social-row a:hover { transform: translateY(-3px); background: var(--forest); color: #fff; border-color: var(--forest); }

/* ============================================================
   Photo banner (pinwheel carousel)
   ============================================================ */
.photo-band { background: var(--forest-deep); padding: 1.4rem 0; overflow: hidden; }
.band-track {
	display: flex; gap: 1rem; width: max-content;
	animation: bandScroll 60s linear infinite;
}
.band-track:hover { animation-play-state: paused; }
.band-track img {
	height: 170px; width: auto; border-radius: 10px; flex-shrink: 0;
	object-fit: cover; cursor: pointer;
	box-shadow: 0 4px 14px rgba(0,0,0,.28);
	transition: transform .25s ease;
}
.band-track img:hover { transform: scale(1.04); }
@keyframes bandScroll { from { transform: translateX(0); } to { transform: translateX(-50%); } }

/* ============================================================
   About + academic timeline
   ============================================================ */
.about-grid { display: grid; grid-template-columns: 1.3fr 1fr; gap: 3.5rem; align-items: start; }
.about-prose p { font-size: 1.08rem; color: var(--ink-soft); }
.about-prose p:first-of-type::first-letter {
	font-family: var(--font-display); font-size: 3.4rem; line-height: .8;
	float: left; padding: .08em .12em 0 0; color: var(--forest); font-weight: 600;
}

.timeline-card {
	background: var(--card); border: 1px solid var(--line);
	border-radius: var(--radius); padding: 1.8rem; box-shadow: var(--shadow-sm);
}
.timeline-card h3 {
	font-size: 1.2rem; display: flex; align-items: center; gap: .55rem;
	padding-bottom: .8rem; margin-bottom: 1.4rem; border-bottom: 1px solid var(--line);
}
.timeline-card h3 i { color: var(--spore); }
.tl-item { position: relative; padding: 0 0 1.5rem 1.6rem; border-left: 2px solid var(--line); }
.tl-item:last-child { padding-bottom: 0; }
.tl-item::before {
	content: ""; position: absolute; left: -7px; top: 3px;
	width: 12px; height: 12px; border-radius: 50%;
	background: var(--forest); border: 2px solid var(--card); box-shadow: 0 0 0 2px var(--moss);
}
.tl-item.gold::before { background: var(--spore); box-shadow: 0 0 0 2px var(--spore-soft); }
.tl-item.rust::before { background: var(--rust); box-shadow: 0 0 0 2px #c8835e; }
.tl-stage { font-weight: 700; font-size: .95rem; color: var(--ink); }
.tl-org { font-size: .95rem; color: var(--ink-soft); margin: .1rem 0; }
.tl-years { font-size: .82rem; color: var(--ink-faint); text-transform: uppercase; letter-spacing: .06em; }
.tl-advisor { font-size: .9rem; margin-top: .15rem; }

/* ============================================================
   Research themes
   ============================================================ */
.theme { margin-bottom: 4.5rem; }
.theme:last-child { margin-bottom: 0; }
.theme-num {
	font-family: var(--font-display); font-size: .95rem; font-weight: 600;
	color: var(--spore); letter-spacing: .05em;
}
.theme h3 { font-size: clamp(1.5rem, 2.6vw, 2rem); margin: .2rem 0 .8rem; max-width: 800px; }
.theme > .wrap > p, .theme-intro { color: var(--ink-soft); max-width: 760px; font-size: 1.05rem; }

/* Editorial paper rows */
.paper-rows { margin-top: 2.4rem; }
.paper-row {
	display: grid; grid-template-columns: 1.05fr 1fr; gap: 3rem; align-items: center;
	padding: 2.8rem 0; border-top: 1px solid var(--line);
}
.paper-row:first-child { border-top: 0; padding-top: 1.4rem; }
.paper-row.reverse .paper-fig { order: 2; }
.paper-fig {
	background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
	padding: 1.1rem; box-shadow: var(--shadow-sm); cursor: zoom-in; position: relative;
}
.paper-fig img { width: 100%; height: auto; display: block; border-radius: 6px; transition: transform .35s ease; }
.paper-fig:hover img { transform: scale(1.02); }
.paper-fig::after {
	content: "\f00e"; font-family: "Font Awesome 5 Free"; font-weight: 900;
	position: absolute; bottom: .9rem; right: .9rem; width: 32px; height: 32px;
	display: flex; align-items: center; justify-content: center; border-radius: 50%;
	background: rgba(43,38,32,.55); color: #fff; font-size: .82rem;
	opacity: 0; transition: opacity .2s ease;
}
.paper-fig:hover::after { opacity: 1; }
.paper-row h4 { font-size: clamp(1.25rem, 2vw, 1.55rem); line-height: 1.22; margin: .55rem 0 .7rem; }
.paper-row p { color: var(--ink-soft); margin-bottom: 1.1rem; }
.paper-row .row-tags { display: flex; gap: .6rem; flex-wrap: wrap; align-items: center; }

.badge {
	display: inline-block; font-size: .72rem; font-weight: 600; letter-spacing: .04em;
	text-transform: uppercase; padding: .28rem .65rem; border-radius: 6px;
}
.badge-pub { background: rgba(56,88,63,.12); color: var(--forest); }
.badge-press { background: rgba(184,132,43,.16); color: var(--spore); }

@media (max-width: 860px) {
	.paper-row, .paper-row.reverse { grid-template-columns: 1fr; gap: 1.4rem; padding: 2rem 0; }
	.paper-row.reverse .paper-fig { order: 0; }
}
.link-btn {
	font-weight: 600; font-size: .9rem; color: var(--forest);
	display: inline-flex; align-items: center; gap: .4rem; cursor: pointer;
	background: none; border: 0; padding: 0; font-family: var(--font-body);
}
.link-btn:hover { color: var(--spore); }

/* Initiative (Aspergillus) */
.initiative {
	display: grid; grid-template-columns: 180px 1fr; gap: 2.4rem; align-items: center;
	background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
	padding: 2.4rem; box-shadow: var(--shadow-sm); margin-top: 2rem;
}
.initiative img.logo { width: 100%; height: auto; }
.initiative p { color: var(--ink-soft); }
.initiative h3 { margin-top: 0; }

/* Theme feature illustration (text + artwork) */
.theme-feature { display: grid; grid-template-columns: 1fr 0.82fr; gap: 3rem; align-items: center; }
.theme-illu { margin: 0; }
.theme-illu .illu-frame {
	border-radius: var(--radius); overflow: hidden; line-height: 0;
	box-shadow: var(--shadow-md); border: 1px solid var(--line); cursor: zoom-in;
}
.theme-illu .illu-frame img { width: 100%; height: auto; display: block; transition: transform .4s ease; }
.theme-illu .illu-frame:hover img { transform: scale(1.03); }
.theme-illu figcaption { margin-top: .7rem; font-size: .82rem; color: var(--ink-faint); text-align: right; }
@media (max-width: 860px) { .theme-feature { grid-template-columns: 1fr; gap: 1.8rem; } .theme-illu figcaption { text-align: left; } }

/* Sub-projects (two-up blocks within a theme) */
.subprojects { display: grid; grid-template-columns: 1fr 1fr; gap: 1.6rem; margin-top: 2.2rem; }
.subproject {
	background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
	padding: 1.8rem; box-shadow: var(--shadow-sm);
	transition: transform .2s ease, box-shadow .2s ease;
}
.subproject:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); }
.subproject .sp-label {
	display: inline-flex; align-items: center; gap: .5rem;
	font-size: .74rem; font-weight: 600; letter-spacing: .08em; text-transform: uppercase;
	color: var(--spore); margin-bottom: .7rem;
}
.subproject .sp-label i { font-size: .95rem; }
.subproject h4 { font-size: 1.2rem; line-height: 1.25; margin: 0 0 .6rem; }
.subproject p { color: var(--ink-soft); font-size: .98rem; margin: 0; }
.subproject .collab { margin-top: .9rem; font-size: .86rem; color: var(--ink-faint); }
@media (max-width: 860px) { .subprojects { grid-template-columns: 1fr; } }

/* ============================================================
   Tools & Software
   ============================================================ */
.tools-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 480px)); gap: 1.6rem; margin-top: 1rem; }
.tool-card {
	background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
	padding: 1.9rem; box-shadow: var(--shadow-sm); display: flex; flex-direction: column;
	transition: transform .2s ease, box-shadow .2s ease;
}
.tool-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); }
.tool-icon {
	width: 48px; height: 48px; border-radius: 12px; display: inline-flex; align-items: center; justify-content: center;
	background: rgba(56,88,63,.1); color: var(--forest); font-size: 1.25rem; margin-bottom: 1rem;
}
.tool-card .tool-meta { font-size: .76rem; font-weight: 600; letter-spacing: .06em; text-transform: uppercase; color: var(--spore); margin-bottom: .5rem; }
.tool-card h3 { font-size: 1.3rem; line-height: 1.2; margin: 0 0 .6rem; }
.tool-card p { color: var(--ink-soft); font-size: .98rem; margin: 0 0 1.4rem; }
.tool-card .tool-foot { margin-top: auto; display: flex; gap: .6rem; flex-wrap: wrap; }
@media (max-width: 860px) { .tools-grid { grid-template-columns: 1fr; } }

/* ============================================================
   Publications list
   ============================================================ */
.pub-list { display: flex; flex-direction: column; gap: 1.2rem; counter-reset: pub; }
.pub {
	display: grid; grid-template-columns: auto 1fr; gap: 1.3rem;
	background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
	padding: 1.5rem 1.7rem; box-shadow: var(--shadow-sm);
	transition: border-color .2s ease, box-shadow .2s ease;
}
.pub:hover { border-color: var(--line-strong); box-shadow: var(--shadow-md); }
.pub .yr {
	font-family: var(--font-display); font-weight: 600; font-size: 1.05rem;
	color: var(--forest); white-space: nowrap; padding-top: .1rem;
}
.pub .pub-title { font-family: var(--font-display); font-size: 1.18rem; font-weight: 540; margin-bottom: .35rem; line-height: 1.25; }
.pub .authors { font-size: .92rem; color: var(--ink-soft); margin-bottom: .35rem; }
.pub .authors b { color: var(--ink); }
.pub .venue { font-size: .92rem; color: var(--ink-faint); margin-bottom: .8rem; }
.pub .venue em { color: var(--ink-soft); font-style: italic; }
.pub .pub-tags { display: flex; gap: .6rem; flex-wrap: wrap; }
.pub .pub-tags a, .pub .pub-tags span {
	font-size: .8rem; font-weight: 600; padding: .3rem .7rem; border-radius: 7px;
}
.tag-doi { background: rgba(56,88,63,.1); color: var(--forest); }
.tag-doi:hover { background: var(--forest); color: #fff; }
.tag-pdf { background: rgba(184,132,43,.14); color: var(--spore); }
.tag-pdf:hover { background: var(--spore); color: #fff; }
.tag-oa { background: rgba(111,139,88,.16); color: var(--moss); }
.tag-status { background: rgba(164,85,44,.12); color: var(--rust); }
.scholar-cta { margin-top: 2.2rem; }

/* ============================================================
   Contact
   ============================================================ */
.contact-grid { display: grid; grid-template-columns: 360px 1fr; gap: 3rem; align-items: start; }
.contact-card {
	background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
	padding: 1.8rem; box-shadow: var(--shadow-sm);
}
.contact-block { padding-bottom: 1.4rem; margin-bottom: 1.4rem; border-bottom: 1px solid var(--line); }
.contact-block:last-child { border-bottom: 0; margin-bottom: 0; padding-bottom: 0; }
.contact-block h4 { font-size: 1rem; margin-bottom: .5rem; display: flex; align-items: center; gap: .5rem; }
.contact-block h4 i { color: var(--spore); }
.contact-block p { font-size: .95rem; color: var(--ink-soft); margin-bottom: .4rem; }
.contact-block a { word-break: break-word; }

.cv-frame {
	width: 100%; height: 760px; border: 1px solid var(--line);
	border-radius: var(--radius); box-shadow: var(--shadow-sm); background: var(--card);
}
.cv-head { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 1rem; margin-bottom: 1rem; }
.cv-head .updated { font-size: .85rem; color: var(--ink-faint); }

/* ============================================================
   Footer
   ============================================================ */
.footer { background: var(--forest-deep); color: rgba(255,255,255,.78); padding: 2.6rem 0; }
.footer .wrap { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 1rem; }
.footer a { color: rgba(255,255,255,.92); border-bottom: 1px solid rgba(255,255,255,.3); }
.footer a:hover { color: var(--spore-soft); }
.footer .sig { font-family: var(--font-display); font-size: 1.05rem; color: #fff; }

/* ============================================================
   Lightbox
   ============================================================ */
.lightbox {
	display: none; position: fixed; inset: 0; z-index: 3000;
	background: rgba(20,16,12,.92); align-items: center; justify-content: center; cursor: zoom-out;
}
.lightbox.open { display: flex; }
.lightbox img { max-width: 92%; max-height: 88vh; border-radius: 10px; box-shadow: var(--shadow-lg); }
.lightbox .lb-close { position: absolute; top: 1.4rem; right: 1.8rem; color: #fff; font-size: 2.4rem; cursor: pointer; line-height: 1; }

/* ============================================================
   Reveal-on-scroll
   ============================================================ */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity .7s ease, transform .7s ease; }
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
	.reveal { opacity: 1; transform: none; transition: none; }
	html { scroll-behavior: auto; }
	.band-track { animation: none; }
}

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 920px) {
	.hero-grid { grid-template-columns: 1fr; text-align: center; gap: 1.8rem; }
	.hero .lede, .hero-actions, .social-row { margin-left: auto; margin-right: auto; }
	.hero-actions, .social-row { justify-content: center; }
	.about-grid { grid-template-columns: 1fr; gap: 2.5rem; }
	.paper-grid { grid-template-columns: 1fr; }
	.initiative { grid-template-columns: 1fr; text-align: center; }
	.initiative img.logo { max-width: 150px; margin: 0 auto; }
	.contact-grid { grid-template-columns: 1fr; }
}

@media (max-width: 680px) {
	body { font-size: 16px; }
	section { padding: 3.5rem 0; }
	.nav-links { display: none; position: absolute; top: 100%; left: 0; right: 0;
		flex-direction: column; gap: 0; background: var(--paper); border-bottom: 1px solid var(--line);
		padding: .5rem 1.6rem 1.2rem; box-shadow: var(--shadow-md); }
	.nav-links.open { display: flex; }
	.nav-links li { width: 100%; padding: .55rem 0; border-bottom: 1px solid var(--line); }
	.nav-toggle { display: block; }
	.hero-photo { width: 220px; height: 220px; }
	.pub { grid-template-columns: 1fr; gap: .5rem; }
	.pub .yr { padding-top: 0; }
}