:root {
	--bg-main: #061427;
	--bg-panel: #0d213a;
	--bg-sidebar: #081a30;
	--text-main: #ffffff;
	--text-muted: #d0dae8;
	--accent: #c4621d;
	--accent-hover: #df7a2e;
	--border: #1a3557;
}

* {
	box-sizing: border-box;
}

html,
body {
	margin: 0;
	padding: 0;
	min-height: 100%;
}

body {
	font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
	background: radial-gradient(circle at top right, #0b2440 0%, var(--bg-main) 55%);
	color: var(--text-main);
	line-height: 1.6;
}

body > div {
	display: grid;
	grid-template-columns: 250px 1fr;
	min-height: 100vh;
}

aside {
	background: linear-gradient(180deg, #091c33 0%, var(--bg-sidebar) 100%);
	border-right: 1px solid var(--border);
	padding: 2.25rem 1.5rem;
}

aside h1 {
	margin-top: 0;
	margin-bottom: 2rem;
	font-size: 1.7rem;
	letter-spacing: 0.03em;
}

aside nav {
	display: flex;
	flex-direction: column;
	gap: 0.85rem;
}

aside nav a {
	color: var(--text-main);
	text-decoration: none;
	padding: 0.65rem 0.75rem;
	border-radius: 0.45rem;
	border: 1px solid transparent;
	transition: background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

aside nav a:hover,
aside nav a[aria-current="page"] {
	color: var(--text-main);
	background-color: rgba(196, 98, 29, 0.18);
	border-color: rgba(196, 98, 29, 0.6);
}

main {
	padding: 2.5rem 3rem;
}

main > header,
main > section,
main > article {
	background: linear-gradient(180deg, rgba(10, 30, 52, 0.94) 0%, rgba(8, 22, 40, 0.94) 100%);
	border: 1px solid var(--border);
	border-radius: 0.75rem;
	padding: 1.5rem 1.75rem;
	margin-bottom: 1.5rem;
}

main > header > p:first-child,
main > section > p:first-child,
main > article > p:first-child {
	text-transform: uppercase;
	letter-spacing: 0.12em;
	font-size: 0.75rem;
	color: var(--accent-hover);
	margin-bottom: 0.4rem;
}

h2,
h3 {
	margin-top: 0;
}

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

a:hover {
	color: #ff8f38;
}

main a[href$=".html"] {
	display: inline-block;
	margin-top: 0.75rem;
	background-color: var(--accent);
	color: #fff;
	text-decoration: none;
	border: 1px solid #d67a39;
	border-radius: 0.45rem;
	padding: 0.6rem 1rem;
	font-weight: 600;
	transition: background-color 0.2s ease;
}

main a[href$=".html"]:hover {
	background-color: var(--accent-hover);
	color: #fff;
}

body[data-page="projects"] main > section {
	display: grid;
	grid-template-columns: repeat(2, minmax(240px, 1fr));
	gap: 1rem;
}

body[data-page="projects"] main > section > article {
	background-color: var(--bg-panel);
	border: 1px solid var(--border);
	border-radius: 0.65rem;
	padding: 1rem;
	margin-bottom: 0;
}

main > article {
	max-width: 760px;
	margin: 0 auto;
	text-align: center;
}

main > article img,
main > article video {
	width: 100%;
	max-width: 680px;
	border-radius: 0.6rem;
	border: 1px solid var(--border);
	margin: 1rem auto;
	display: block;
	background-color: #122946;
}

small {
	color: var(--text-muted);
	font-size: 0.92rem;
}

footer {
	margin-top: 2rem;
	color: var(--text-muted);
	font-size: 0.9rem;
}