/* Portfolio Animation Layer — progressive enhancement on top of main.css */

:root {
	--accent: #2dd4bf;
	--accent-rgb: 45, 212, 191;
	--accent-glow: rgba(45, 212, 191, 0.3);
	--accent-subtle: rgba(45, 212, 191, 0.12);
	--sidebar-bg: #111827;
	--ease-out-quart: cubic-bezier(0.25, 1, 0.5, 1);
}

/* ─── Light-mode background gradient ─────────────────────────────────────── */

body {
	background: linear-gradient(150deg, #f0fdf9 0%, #ffffff 35%, #f8fafc 65%, #eef2ff 100%);
	min-height: 100vh;
	transition: background 0.35s ease, color 0.35s ease;
}

/* ─── Color overrides: new near-black + electric teal palette ────────────── */

/* Sidebar: near-black gradient, replace the old dark-brown + bg.jpg */
#header {
	background-image:
		url("images/overlay.png"),
		linear-gradient(160deg, #1e2d3d 0%, #111827 50%, #091520 100%) !important;
	background-size: auto, cover !important;
	background-color: var(--sidebar-bg) !important;
	overflow: hidden; /* contain particle canvas */
}

/* Sidebar text */
#header {
	color: rgba(249, 250, 251, 0.75);
}

#header h1,
#header h2,
#header h3,
#header h4 {
	color: #f9fafb !important;
}

/* .inner must sit above the canvas */
#header .inner {
	position: relative;
	z-index: 1;
}

/* Global accent colour override (#49bf9d → #2dd4bf) */
a {
	color: var(--accent);
	border-bottom-color: var(--accent);
}

a:hover {
	color: var(--accent) !important;
}

/* Button defaults */
.button:hover {
	border-color: var(--accent) !important;
	color: var(--accent) !important;
}

.button:focus {
	background-color: rgba(var(--accent-rgb), 0.08) !important;
	border-color: var(--accent) !important;
	color: var(--accent) !important;
}

/* Primary button: keep teal bg on main content */
.button.primary {
	background-color: var(--accent) !important;
	border-color: var(--accent) !important;
	color: #0d1520 !important;
}

.button.primary:hover {
	background-color: #4ae0cc !important;
	border-color: #4ae0cc !important;
}

.button.primary:active {
	background-color: #22baa5 !important;
	border-color: #22baa5 !important;
}

/* Sidebar nav buttons: glass/outline style */
#header .button.primary {
	background-color: rgba(var(--accent-rgb), 0.1) !important;
	border: 1px solid rgba(var(--accent-rgb), 0.4) !important;
	color: var(--accent) !important;
	font-size: 0.78em;
	letter-spacing: 0.07em;
	text-transform: uppercase;
	height: 2.8em;
}

#header .button.primary:hover {
	background-color: rgba(var(--accent-rgb), 0.22) !important;
	border-color: var(--accent) !important;
}

/* Form focus colours */
input:focus,
select:focus,
textarea:focus {
	border-color: var(--accent) !important;
}

/* ─── Scroll-reveal base ─────────────────────────────────────────────────── */

.reveal {
	opacity: 0;
	transform: translateY(32px);
	transition: opacity 0.65s var(--ease-out-quart),
	            transform 0.65s var(--ease-out-quart);
}

.reveal.is-visible {
	opacity: 1;
	transform: translateY(0);
}

.reveal-delay-1 { transition-delay: 0.05s; }
.reveal-delay-2 { transition-delay: 0.15s; }
.reveal-delay-3 { transition-delay: 0.25s; }
.reveal-delay-4 { transition-delay: 0.35s; }
.reveal-delay-5 { transition-delay: 0.45s; }
.reveal-delay-6 { transition-delay: 0.55s; }

.reveal-left {
	opacity: 0;
	transform: translateX(-28px);
	transition: opacity 0.65s var(--ease-out-quart),
	            transform 0.65s var(--ease-out-quart);
}

.reveal-left.is-visible {
	opacity: 1;
	transform: translateX(0);
}

/* ─── Section heading underline reveal ───────────────────────────────────── */

.section-heading {
	display: inline-block;
	position: relative;
	opacity: 0;
	transform: translateY(12px);
	transition: opacity 0.5s ease, transform 0.5s ease;
}

.section-heading::after {
	content: '';
	position: absolute;
	bottom: -4px;
	left: 0;
	width: 0;
	height: 2px;
	background: var(--accent);
	transition: width 0.6s var(--ease-out-quart);
	border-radius: 2px;
}

section.is-visible .section-heading {
	opacity: 1;
	transform: translateY(0);
}

section.is-visible .section-heading::after {
	width: 100%;
}

section header.major {
	opacity: 0;
	transform: translateY(14px);
	transition: opacity 0.55s var(--ease-out-quart), transform 0.55s var(--ease-out-quart);
}

section.is-visible header.major {
	opacity: 1;
	transform: translateY(0);
}

/* Parallax headings: no transition — position updates every frame */
h2.parallax-heading {
	will-change: transform;
}

/* ─── Typing cursor ──────────────────────────────────────────────────────── */

.typing-cursor {
	display: inline-block;
	width: 2px;
	height: 0.85em;
	background: var(--accent);
	margin-left: 3px;
	vertical-align: text-bottom;
	animation: blink 0.9s step-end infinite;
}

@keyframes blink {
	0%, 100% { opacity: 1; }
	50%       { opacity: 0; }
}

/* ─── Avatar glow ring ───────────────────────────────────────────────────── */

#header .image.avatar {
	width: 5.5em !important;
}

#header .image.avatar img {
	border-radius: 50%;
	box-shadow:
		0 0 0 3px var(--accent),
		0 0 0 6px rgba(45, 212, 191, 0.18),
		0 0 22px rgba(45, 212, 191, 0.25);
	animation: avatarGlow 3s ease-in-out infinite alternate;
}

@keyframes avatarGlow {
	from {
		box-shadow:
			0 0 0 3px var(--accent),
			0 0 0 6px rgba(45, 212, 191, 0.15),
			0 0 16px rgba(45, 212, 191, 0.2);
	}
	to {
		box-shadow:
			0 0 0 3px var(--accent),
			0 0 0 9px rgba(45, 212, 191, 0.28),
			0 0 36px rgba(45, 212, 191, 0.5);
	}
}

/* ─── Skill chips ────────────────────────────────────────────────────────── */

.skill-chips {
	display: flex;
	flex-wrap: wrap;
	gap: 0.35em;
	margin-top: 0.85em;
}

.chip {
	background: rgba(45, 212, 191, 0.1);
	border: 1px solid rgba(45, 212, 191, 0.32);
	color: var(--accent);
	border-radius: 2em;
	padding: 0.18em 0.65em;
	font-size: 0.62em;
	letter-spacing: 0.06em;
	text-transform: uppercase;
	cursor: default;
	transition: background 0.2s ease, transform 0.2s ease, border-color 0.2s ease;
}

.chip:hover {
	background: rgba(45, 212, 191, 0.22);
	border-color: var(--accent);
	transform: translateY(-2px);
}

/* ─── Stats strip ────────────────────────────────────────────────────────── */

#stats {
	padding: 0.5em 0 2em;
}

.stat-grid {
	display: grid;
	grid-template-columns: repeat(4, 1fr);
	gap: 1em;
	border-top: 1px solid #efefef;
	border-bottom: 1px solid #efefef;
	padding: 1.75em 0;
}

.stat-item {
	text-align: center;
}

.stat-number {
	display: block;
	font-size: 2.2em;
	font-weight: 700;
	color: var(--accent);
	line-height: 1;
	letter-spacing: -0.02em;
}

.stat-label {
	display: block;
	font-size: 0.68em;
	color: #a2a2a2;
	margin-top: 0.5em;
	text-transform: uppercase;
	letter-spacing: 0.1em;
}

/* Responsive: stack to 2-col on small screens */
@media (max-width: 480px) {
	.stat-grid {
		grid-template-columns: repeat(2, 1fr);
	}
}

/* ─── Project card grid ──────────────────────────────────────────────────── */

/* CSS Grid replaces the old flex col-5 layout */
.project-grid {
	display: grid;
	grid-template-columns: repeat(2, 1fr);
	gap: 1.75em;
	margin-top: 1.5em;
}

/* Card shell */
.project-card {
	background: #fff;
	border: 1px solid #e8e8e8;
	border-radius: 0.6em;
	overflow: hidden;
	display: flex;
	flex-direction: column;
	transition: transform 0.3s var(--ease-out-quart),
	            box-shadow 0.3s ease,
	            border-color 0.3s ease;
}

.project-card:hover {
	transform: translateY(-5px);
	box-shadow: 0 14px 36px rgba(0, 0, 0, 0.1);
	border-color: var(--accent);
}

/* Thumbnail: forced 16:9 with zoom-on-hover */
.project-thumb {
	display: block;
	position: relative;
	overflow: hidden;
	aspect-ratio: 16 / 9;
	background: #111827;
}

.project-thumb img {
	width: 100%;
	height: 100%;
	object-fit: cover;
	display: block;
	transition: transform 0.5s ease, opacity 0.3s ease;
}

.project-card:hover .project-thumb img {
	transform: scale(1.06);
	opacity: 0.82;
}

/* "View Project" overlay */
.project-overlay {
	position: absolute;
	inset: 0;
	display: flex;
	align-items: center;
	justify-content: center;
	opacity: 0;
	transition: opacity 0.3s ease;
	pointer-events: none;
}

.project-card:hover .project-overlay {
	opacity: 1;
}

.overlay-label {
	background: var(--accent);
	color: #0d1520;
	font-size: 0.72em;
	font-weight: 600;
	letter-spacing: 0.1em;
	text-transform: uppercase;
	padding: 0.5em 1.2em;
	border-radius: 2em;
}

/* Card text area */
.project-card-body {
	padding: 1.1em 1.35em 1.35em;
	flex: 1;
	display: flex;
	flex-direction: column;
}

.project-tag {
	display: inline-block;
	font-size: 0.62em;
	font-weight: 600;
	text-transform: uppercase;
	letter-spacing: 0.1em;
	color: var(--accent);
	margin-bottom: 0.45em;
}

.project-card h3 {
	font-size: 0.95em !important;
	font-weight: 600 !important;
	color: #555 !important;
	line-height: 1.4 !important;
	margin: 0 0 0.55em !important;
}

.project-card p {
	font-size: 0.82em;
	color: #aaa;
	line-height: 1.65;
	margin: 0;
	flex: 1;
}

/* Responsive */
@media (max-width: 736px) {
	.project-grid {
		grid-template-columns: 1fr;
	}
}

/* ─── Nav button shimmer ─────────────────────────────────────────────────── */

#header .button.primary {
	position: relative;
	overflow: hidden;
}

#header .button.primary::before {
	content: '';
	position: absolute;
	top: 0;
	left: -100%;
	width: 60%;
	height: 100%;
	background: linear-gradient(
		90deg,
		transparent 0%,
		rgba(255, 255, 255, 0.15) 50%,
		transparent 100%
	);
	transform: skewX(-20deg);
	transition: left 0.45s ease;
	pointer-events: none;
}

#header .button.primary:hover::before {
	left: 160%;
}

/* ─── Scroll indicator ───────────────────────────────────────────────────── */

#scroll-indicator {
	position: fixed;
	bottom: 2.5em;
	right: 2.5em;
	z-index: 200;
	pointer-events: none;
	opacity: 1;
	transition: opacity 0.5s ease;
	display: flex;
	flex-direction: column;
	align-items: center;
	gap: 4px;
}

#scroll-indicator.hidden {
	opacity: 0;
}

.scroll-arrow {
	display: block;
	width: 18px;
	height: 18px;
	border-right: 2px solid var(--accent);
	border-bottom: 2px solid var(--accent);
	transform: rotate(45deg);
	animation: bounceDown 1.4s ease-in-out infinite;
}

.scroll-arrow:nth-child(2) {
	opacity: 0.55;
	animation-delay: 0.18s;
}

@keyframes bounceDown {
	0%, 100% { transform: rotate(45deg) translateY(0);   opacity: 1; }
	50%       { transform: rotate(45deg) translateY(7px); opacity: 0.4; }
}

/* ─── Page transition overlay ────────────────────────────────────────────── */

#page-transition {
	position: fixed;
	inset: 0;
	background: var(--sidebar-bg);
	z-index: 9999;
	opacity: 0;
	pointer-events: none;
	transition: opacity 0.35s ease;
}

#page-transition.active {
	opacity: 1;
	pointer-events: all;
}

/* ─── Work experience timeline ───────────────────────────────────────────── */

#work_experience .row {
	position: relative;
	padding-left: 1.8em;
}

#work_experience .row::before {
	content: '';
	position: absolute;
	left: 0.35em;
	top: 0.5em;
	bottom: 1em;
	width: 2px;
	background: linear-gradient(
		to bottom,
		var(--accent) 0%,
		rgba(var(--accent-rgb), 0.18) 100%
	);
	border-radius: 2px;
}

#work_experience article.col-12 {
	position: relative;
	padding-bottom: 2.5em;
}

#work_experience article.col-12::before {
	content: '';
	position: absolute;
	left: -1.55em;
	top: 0.45em;
	width: 10px;
	height: 10px;
	background: var(--accent);
	border-radius: 50%;
	box-shadow: 0 0 0 3px rgba(var(--accent-rgb), 0.18), 0 0 8px rgba(var(--accent-rgb), 0.3);
}

#work_experience article.col-12 h3 {
	color: #444 !important;
	font-size: 1em !important;
	margin-bottom: 0.25em !important;
}

#work_experience article.col-12 > p > p {
	color: #888;
	font-size: 0.85em;
	margin-bottom: 0.75em;
}

/* ─── Image hover caption enhancement ───────────────────────────────────── */

/* Override main.css centered popup → slide-up caption bar */
.image.context::after {
	content: attr(data-hover-text) !important;
	position: absolute !important;
	top: auto !important;
	bottom: 0 !important;
	left: 0 !important;
	right: 0 !important;
	transform: translateY(100%) !important;
	background: linear-gradient(transparent, rgba(0, 0, 0, 0.78)) !important;
	color: #fff !important;
	padding: 1.8em 0.9em 0.75em !important;
	border-radius: 0 !important;
	font-size: 0.72em !important;
	font-weight: 400 !important;
	text-align: left !important;
	opacity: 1 !important;
	transition: transform 0.3s var(--ease-out-quart) !important;
	pointer-events: none !important;
}

.image.context:hover::after {
	transform: translateY(0) !important;
	opacity: 1 !important;
}

/* ─── CV download buttons ────────────────────────────────────────────────── */

.cv-actions {
	display: flex;
	gap: 0.9em;
	flex-wrap: wrap;
	margin-top: 1.5em;
}

.cv-actions .button {
	display: inline-flex;
	align-items: center;
	gap: 0.45em;
}

/* ─── Model-viewer protection ────────────────────────────────────────────── */

/* Prevent the animation layer from accidentally hiding or blocking 3D viewers */
model-viewer {
	display: block !important;
	pointer-events: auto !important;
	opacity: 1 !important;
	transform: none !important;
}

/* ─── Footer icon hover pulse ────────────────────────────────────────────── */

#footer .icons a {
	transition: color 0.2s ease, transform 0.2s ease;
	display: inline-block;
}

#footer .icons a:hover {
	transform: translateY(-3px) scale(1.15);
	color: var(--accent) !important;
}

/* ─── Scroll progress bar ────────────────────────────────────────────────── */

#scroll-progress {
	position: fixed;
	top: 0;
	left: 0;
	width: 0%;
	height: 3px;
	background: linear-gradient(90deg, var(--accent), #74efe0);
	z-index: 9998;
	border-radius: 0 2px 2px 0;
	box-shadow: 0 0 8px rgba(var(--accent-rgb), 0.55);
	transition: width 0.08s linear;
	pointer-events: none;
}

/* ─── 3-D card tilt — let JS drive transform, keep box-shadow/border in CSS ─ */

.project-card {
	will-change: transform;
}

/* ─── Stacking: page content sits above background particle canvas ────────── */

#main,
#footer {
	position: relative;
	z-index: 2;
}

/* ─── Reduced motion ─────────────────────────────────────────────────────── */

@media (prefers-reduced-motion: reduce) {
	.reveal,
	.reveal-left,
	.section-heading,
	section header.major,
	#projects article,
	#header .button.primary,
	#footer .icons a,
	.chip,
	.scroll-arrow {
		transition: none !important;
		animation: none !important;
		opacity: 1 !important;
		transform: none !important;
	}

	#header .image.avatar img {
		animation: none !important;
		box-shadow: 0 0 0 3px var(--accent) !important;
	}

	.typing-cursor {
		animation: none;
	}
}