@import url('https://fonts.googleapis.com/css?family=Open+Sans');

:root {
	--bg-gradient: radial-gradient(at 0% 0%, rgba(129, 140, 248, 0.3) 0%, transparent 65%), radial-gradient(at 100% 0%, rgba(245, 158, 11, 0.12) 0%, transparent 50%), radial-gradient(at 100% 100%, rgba(244, 63, 94, 0.1) 0%, transparent 50%), radial-gradient(at 0% 100%, rgba(59, 130, 246, 0.2) 0%, transparent 50%), #f8fafc;
	--text-color: #333;
	--text-hover: #000;
	--link-color: #333;
	--link-hover: #666;
	--section-bg: rgba(255, 255, 255, 0.7);
	--section-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
	--nav-border: #999;
	--nav-icon-color: #666;
	--paragraph-color: #333;
}

@media (prefers-color-scheme: dark) {
	:root {
		--bg-gradient: radial-gradient(at 0% 0%, rgba(99, 102, 241, 0.25) 0%, transparent 65%), radial-gradient(at 100% 0%, rgba(59, 130, 246, 0.15) 0%, transparent 50%), radial-gradient(at 100% 100%, rgba(168, 85, 247, 0.15) 0%, transparent 50%), radial-gradient(at 0% 100%, rgba(20, 184, 166, 0.15) 0%, transparent 50%), #030712;
		--text-color: #f1f5f9;
		--text-hover: #ffffff;
		--link-color: #cbd5e1;
		--link-hover: #60a5fa;
		--section-bg: rgba(30, 41, 59, 0.75);
		--section-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.3), 0 2px 4px -1px rgba(0, 0, 0, 0.2);
		--nav-border: #334155;
		--nav-icon-color: #94a3b8;
		--paragraph-color: #cbd5e1;
	}
}

/* User light override when system is dark */
@media (prefers-color-scheme: dark) {
	html:has(#dark-mode-toggle:checked) {
		--bg-gradient: radial-gradient(at 0% 0%, rgba(129, 140, 248, 0.3) 0%, transparent 65%), radial-gradient(at 100% 0%, rgba(245, 158, 11, 0.12) 0%, transparent 50%), radial-gradient(at 100% 100%, rgba(244, 63, 94, 0.1) 0%, transparent 50%), radial-gradient(at 0% 100%, rgba(59, 130, 246, 0.2) 0%, transparent 50%), #f8fafc;
		--text-color: #333;
		--text-hover: #000;
		--link-color: #333;
		--link-hover: #666;
		--section-bg: rgba(255, 255, 255, 0.7);
		--section-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
		--nav-border: #999;
		--nav-icon-color: #666;
		--paragraph-color: #333;
	}
}

/* User dark override when system is light */
@media (prefers-color-scheme: light) {
	html:has(#dark-mode-toggle:checked) {
		--bg-gradient: radial-gradient(at 0% 0%, rgba(99, 102, 241, 0.25) 0%, transparent 65%), radial-gradient(at 100% 0%, rgba(59, 130, 246, 0.15) 0%, transparent 50%), radial-gradient(at 100% 100%, rgba(168, 85, 247, 0.15) 0%, transparent 50%), radial-gradient(at 0% 100%, rgba(20, 184, 166, 0.15) 0%, transparent 50%), #030712;
		--text-color: #f1f5f9;
		--text-hover: #ffffff;
		--link-color: #cbd5e1;
		--link-hover: #60a5fa;
		--section-bg: rgba(30, 41, 59, 0.75);
		--section-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.3), 0 2px 4px -1px rgba(0, 0, 0, 0.2);
		--nav-border: #334155;
		--nav-icon-color: #94a3b8;
		--paragraph-color: #cbd5e1;
	}
}

body {
	background: var(--bg-gradient);
	background-attachment: fixed;
	color: var(--text-color);
	font-family: 'Open Sans';
	transition: background 0.3s ease, color 0.3s ease;
}

p {
	color: var(--paragraph-color);
	transition: color 0.3s ease;
}

a {
	transition: color 0.3s ease;
}

.dark-mode-checkbox {
	display: none;
}

/* ================================================== *\
   nav
\* ================================================== */

nav {
	padding: 30px 20px 0;
}

@media (min-width: 768px) {
	nav {
		position: fixed;
		width: 200px;
		padding: 50px 30px 50px 50px;
	}
}

nav .avatar {
	display: inline-block;
	vertical-align: middle;
	margin-right: 12px;
}

nav .avatar img {
	display: block;
	border-radius: 50%;
	width: 100px;
}

@media (min-width: 768px) {
	nav .avatar img {
		width: 126px;
	}
}

nav h1 {
	display: inline-block;
	vertical-align: middle;
	font-size: 25px;
}

@media (min-width: 768px) {
	nav h1 {
		margin: 20px 0 0;
	}
}

nav .links {
	margin: 30px 0;
	padding: 15px 0;
	border-top: 1px solid var(--nav-border);
	border-bottom: 1px solid var(--nav-border);
}

nav .links a {
	display: block;
	padding: 5px 0;
	color: var(--link-color);
	text-decoration: none;
	font-size: 20px;
}

nav .links a:hover {
	color: var(--text-hover);
	font-weight: bold;
}

nav .icons a {
	margin-right: 8px;
	color: var(--nav-icon-color);
	font-size: 30px;
	display: inline-block;
	vertical-align: middle;
	line-height: 1;
}

nav .icons a i {
	vertical-align: middle;
}

nav .icons a:hover {
	color: var(--text-hover);
}

/* ================================================== *\
   main
\* ================================================== */

main {
	padding: 50px 20px;
}

@media (min-width: 768px) {
	main {
		margin-left: 280px;
	}
}

section {
	margin: 0 auto 50px;
	box-shadow: var(--section-shadow);
	background-color: var(--section-bg);
	border-top: 2px solid #737373;
	padding: 10px 20px 20px;
	max-width: 650px;
	font-size: 14px;
	transition: background-color 0.3s ease, box-shadow 0.3s ease;
}

@media (min-width: 768px) {
	section {
		padding: 15px 30px 30px 60px;
	}
}

section h2 {
	font-weight: normal;
	font-size: 25px;
}

@media (min-width: 768px) {
	section h2 {
		margin-left: -30px;
	}
}

section h3 {
	padding-top: 10px;
}

section a {
	color: var(--link-color);
}

section a:hover {
	color: var(--link-hover);
}

/* ================================================== *\
   toggle
\* ================================================== */

.toggle {
	display: none;
}

.toggle+label+div {
	display: none;
}

.toggle:checked+label {
	display: none;
}

.toggle:checked+label+div {
	display: block;
}

section .toggle+label,
section label.collapse {
	display: block;
	padding: 15px 0;
}

section .toggle+label:before {
	content: 'show more \00BB';
}

section label.collapse:before {
	content: '\00AB  show less';
}

section .toggle+label:hover,
section label.collapse:hover {
	cursor: pointer;
	text-decoration: underline;
	color: var(--link-hover);
}

/* ================================================== *\
   sections
\* ================================================== */

#education {
	border-color: #7FBA00;
}

#work {
	border-color: #F24F22;
}

#projects {
	border-color: #00A4EC;
}

#sandbox {
	border-color: #FEB900;
}

/* ================================================== *\
   footer
\* ================================================== */

footer {
	text-align: center;
	line-height: 50px;
	font-size: 30px;
}

footer a {
	color: #fff;
}

footer div {
	font-size: 16px;
}

footer div .fa {
	font-size: 21px;
}

.footer-toggle {
	display: inline-block;
	cursor: pointer;
	color: inherit;
	transition: color 0.3s ease;
}

.footer-toggle:hover {
	color: var(--text-hover);
}

/* Default fallback (Light mode): show moon, hide sun */
.footer-toggle .sun-icon {
	display: none;
}

.footer-toggle .moon-icon {
	display: inline-block;
}

html:has(#dark-mode-toggle:checked) .footer-toggle .sun-icon {
	display: inline-block;
}

html:has(#dark-mode-toggle:checked) .footer-toggle .moon-icon {
	display: none;
}

/* System prefers dark: show sun, hide moon */
@media (prefers-color-scheme: dark) {
	.footer-toggle .sun-icon {
		display: inline-block;
	}

	.footer-toggle .moon-icon {
		display: none;
	}

	html:has(#dark-mode-toggle:checked) .footer-toggle .sun-icon {
		display: none;
	}

	html:has(#dark-mode-toggle:checked) .footer-toggle .moon-icon {
		display: inline-block;
	}
}