/* ===========================================================
   ipechman — portfolio
   Theme: black terminal · Inconsolata mono · warm star-trail gold
   =========================================================== */

:root {
	--bg:            #000000;
	--panel:         #0b0b0c;
	--panel-2:       #101013;
	--fg:            #f4f4f4;
	--fg-soft:       #dcdcdc;
	--fg-dim:        #c8c8c8;
	--muted:         #8b8b90;
	--comment:       #5f6672;
	--accent:        #d9a441;   /* gold sampled from the star trails */
	--accent-bright: #f0c069;
	--accent-dim:    rgba(217, 164, 65, 0.12);
	--on-accent:     #000000;
	--ok:            #6fbf73;
	--border:        #1d1d20;
	--border-light:  #2a2a2e;
	--nav-bg:          rgba(0, 0, 0, 0.55);
	--nav-bg-scrolled: rgba(0, 0, 0, 0.82);
	--nav-bg-mobile:   rgba(0, 0, 0, 0.96);
	--glow:          0 0 38px rgba(217, 164, 65, 0.18);
	--shadow-accent: 0 12px 34px -20px rgba(217, 164, 65, 0.5);
	--maxw:          920px;
	--nav-h:         64px;
	--radius:        14px;
	--ease:          cubic-bezier(0.22, 1, 0.36, 1);
	color-scheme: dark;
}

/* ---------- themes (cycled via the nav toggle, persisted in localStorage) ---------- */
html[data-theme="matrix"] {
	--bg:            #020503;
	--panel:         #06120a;
	--panel-2:       #081710;
	--fg:            #d8f3dc;
	--fg-soft:       #c4e8cd;
	--fg-dim:        #a9d4b4;
	--muted:         #6f9b7d;
	--comment:       #4e6b58;
	--accent:        #36d97b;
	--accent-bright: #6cf2a4;
	--accent-dim:    rgba(54, 217, 123, 0.12);
	--ok:            #36d97b;
	--border:        #0e2417;
	--border-light:  #18382a;
	--nav-bg:          rgba(2, 5, 3, 0.55);
	--nav-bg-scrolled: rgba(2, 5, 3, 0.82);
	--nav-bg-mobile:   rgba(2, 5, 3, 0.96);
	--glow:          0 0 38px rgba(54, 217, 123, 0.18);
	--shadow-accent: 0 12px 34px -20px rgba(54, 217, 123, 0.5);
}

html[data-theme="nebula"] {
	--bg:            #08060e;
	--panel:         #100c1c;
	--panel-2:       #151025;
	--fg:            #efeaff;
	--fg-soft:       #ddd5f2;
	--fg-dim:        #c4bade;
	--muted:         #9388b0;
	--comment:       #6c6390;
	--accent:        #a78bfa;
	--accent-bright: #c4b0ff;
	--accent-dim:    rgba(167, 139, 250, 0.13);
	--ok:            #7fd998;
	--border:        #1d1730;
	--border-light:  #2c2347;
	--nav-bg:          rgba(8, 6, 14, 0.55);
	--nav-bg-scrolled: rgba(8, 6, 14, 0.82);
	--nav-bg-mobile:   rgba(8, 6, 14, 0.96);
	--glow:          0 0 38px rgba(167, 139, 250, 0.20);
	--shadow-accent: 0 12px 34px -20px rgba(167, 139, 250, 0.5);
}

html[data-theme="paper"] {
	--bg:            #f6f3ec;
	--panel:         #fffdf8;
	--panel-2:       #efeadd;
	--fg:            #1f1d18;
	--fg-soft:       #33302a;
	--fg-dim:        #4a463d;
	--muted:         #6e6a5f;
	--comment:       #8c8779;
	--accent:        #9c6b16;
	--accent-bright: #7a5210;
	--accent-dim:    rgba(156, 107, 22, 0.10);
	--on-accent:     #ffffff;
	--ok:            #2e7d40;
	--border:        #e2dccd;
	--border-light:  #d0c8b3;
	--nav-bg:          rgba(246, 243, 236, 0.72);
	--nav-bg-scrolled: rgba(246, 243, 236, 0.92);
	--nav-bg-mobile:   rgba(246, 243, 236, 0.98);
	--glow:          0 0 38px rgba(156, 107, 22, 0.14);
	--shadow-accent: 0 12px 34px -20px rgba(156, 107, 22, 0.45);
	color-scheme: light;
}

* {
	font-family: 'Inconsolata', 'SFMono-Regular', ui-monospace, monospace;
	box-sizing: border-box;
}

html {
	scroll-behavior: smooth;
	scroll-padding-top: calc(var(--nav-h) + 12px);
	-webkit-text-size-adjust: 100%;
}

body {
	margin: 0;
	min-height: 100vh;
	background-color: var(--bg);
	color: var(--fg);
	transition: background-color 0.35s var(--ease), color 0.35s var(--ease);
	line-height: 1.6;
	font-size: 17px;
	overflow-x: hidden;
	-webkit-font-smoothing: antialiased;
}

::selection {
	background: var(--accent);
	color: var(--on-accent);
}

a { color: inherit; text-decoration: none; }

.accent  { color: var(--accent); }
.prompt  { color: var(--accent); font-weight: 700; }
.comment { color: var(--comment); }
.muted   { color: var(--muted); }

/* ===================== NAV ===================== */
#nav {
	position: fixed;
	top: 0; left: 0; right: 0;
	height: var(--nav-h);
	display: flex;
	align-items: center;
	justify-content: space-between;
	padding: 0 clamp(1rem, 4vw, 2.5rem);
	background: var(--nav-bg);
	backdrop-filter: blur(10px);
	-webkit-backdrop-filter: blur(10px);
	border-bottom: 1px solid transparent;
	z-index: 100;
	transition: background 0.3s var(--ease), border-color 0.3s var(--ease);
}

#nav.scrolled {
	background: var(--nav-bg-scrolled);
	border-bottom-color: var(--border);
}

.nav-right {
	display: flex;
	align-items: center;
	gap: clamp(0.6rem, 2vw, 1.4rem);
}

/* ---------- theme toggle ---------- */
.theme-toggle {
	display: inline-flex;
	align-items: center;
	gap: 0.45rem;
	background: none;
	border: 1px solid var(--border-light);
	border-radius: 8px;
	padding: 0.32rem 0.7rem;
	color: var(--muted);
	font-size: 0.9rem;
	cursor: pointer;
	transition: border-color 0.2s var(--ease), color 0.2s var(--ease);
}
.theme-toggle:hover {
	border-color: var(--accent);
	color: var(--fg);
	background: var(--accent-dim);
}
.theme-toggle .theme-dot {
	width: 10px; height: 10px;
	border-radius: 50%;
	background: var(--accent);
	box-shadow: 0 0 8px var(--accent-dim);
}

.brand {
	font-weight: 700;
	font-size: 1.15rem;
	letter-spacing: 0.5px;
	color: var(--fg);
	transition: color 0.25s var(--ease);
	white-space: nowrap;
}
.brand:hover { color: var(--accent); }

.nav-links {
	display: flex;
	align-items: center;
	gap: clamp(0.5rem, 2vw, 1.6rem);
	list-style: none;
	margin: 0; padding: 0;
}
.nav-links a {
	color: var(--muted);
	font-size: 0.98rem;
	transition: color 0.2s var(--ease);
}
.nav-links a:hover,
.nav-links a.active { color: var(--fg); }
.nav-links a:hover .accent,
.nav-links a.active .accent { color: var(--accent-bright); }
.nav-resume {
	border: 1px solid var(--border-light);
	border-radius: 8px;
	padding: 0.32rem 0.7rem;
	color: var(--fg) !important;
}
.nav-resume:hover {
	border-color: var(--accent);
	background: var(--accent-dim);
}

.nav-toggle {
	display: none;
	flex-direction: column;
	justify-content: center;
	gap: 5px;
	width: 38px; height: 38px;
	padding: 0;
	background: none;
	border: 1px solid var(--border-light);
	border-radius: 8px;
	cursor: pointer;
}
.nav-toggle span {
	display: block;
	width: 18px; height: 2px;
	margin: 0 auto;
	background: var(--fg);
	transition: transform 0.3s var(--ease), opacity 0.2s var(--ease);
}
.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ===================== HERO ===================== */
.hero {
	min-height: 100vh;
	display: flex;
	flex-direction: column;
	align-items: center;
	justify-content: center;
	text-align: center;
	padding: var(--nav-h) 1.2rem 4rem;
	position: relative;
}

#intro {
	margin: 0;
	font-size: clamp(2.6rem, 11vw, 6.5rem);
	font-weight: 900;
	letter-spacing: 2px;
	color: var(--fg);
	user-select: none;
	text-shadow: var(--glow);
	min-height: 1.1em;
}

.hero-sub {
	margin: 1.4rem 0 0.3rem;
	font-size: clamp(1.05rem, 3.2vw, 1.5rem);
	color: var(--fg-soft);
	user-select: none;
}
#age { color: var(--accent); font-weight: 700; }

.hero-tagline {
	margin: 0;
	color: var(--muted);
	font-size: clamp(0.85rem, 2.4vw, 1.02rem);
	letter-spacing: 0.3px;
}

.hero-links {
	display: flex;
	align-items: center;
	gap: 1.25rem;
	margin-top: 2rem;
	flex-wrap: wrap;
	justify-content: center;
}
.icon-link {
	color: var(--muted);
	display: inline-flex;
	transition: color 0.22s var(--ease), transform 0.22s var(--ease);
}
.icon-link:hover {
	color: var(--accent);
	transform: translateY(-3px);
}
.btn-resume {
	border: 1px solid var(--accent);
	color: var(--accent);
	border-radius: 9px;
	padding: 0.5rem 1rem;
	font-size: 0.95rem;
	font-weight: 500;
	transition: background 0.22s var(--ease), color 0.22s var(--ease), transform 0.22s var(--ease);
}
.btn-resume:hover {
	background: var(--accent);
	color: var(--on-accent);
	transform: translateY(-3px);
}

.scroll-cue {
	position: absolute;
	bottom: 1.7rem;
	left: 50%;
	transform: translateX(-50%);
	display: flex;
	flex-direction: column;
	align-items: center;
	gap: 0.25rem;
	color: var(--muted);
	font-size: 0.8rem;
	letter-spacing: 1px;
	opacity: 0.8;
	transition: color 0.2s var(--ease);
}
.scroll-cue:hover { color: var(--accent); }
.scroll-cue .arrow { animation: bob 1.8s var(--ease) infinite; }
@keyframes bob { 0%,100% { transform: translateY(0); } 50% { transform: translateY(5px); } }

/* ===================== SECTIONS ===================== */
.section {
	max-width: var(--maxw);
	margin: 0 auto;
	padding: clamp(3.5rem, 9vw, 6rem) 1.4rem;
	scroll-margin-top: var(--nav-h);
}
.section--wide { max-width: 1180px; }

.section-title {
	font-size: clamp(1.5rem, 4.5vw, 2.1rem);
	font-weight: 700;
	margin: 0 0 0.4rem;
	letter-spacing: 0.5px;
}
.section-lead {
	color: var(--muted);
	margin: 0 0 2.2rem;
	font-size: 1rem;
}
.section-lead .hint { color: var(--accent); font-size: 0.9rem; }

/* ===================== ABOUT ===================== */
.about-grid {
	display: grid;
	grid-template-columns: 1.5fr 1fr;
	gap: 2.5rem;
	align-items: start;
}
.about-text p { margin: 0 0 1.1rem; color: var(--fg-soft); }
.about-text strong { color: var(--accent); font-weight: 700; }

/* terminal-style card (about + contact) */
.about-card {
	background: var(--panel);
	border: 1px solid var(--border);
	border-radius: var(--radius);
	overflow: hidden;
}
.card-head {
	display: flex;
	align-items: center;
	gap: 7px;
	padding: 0.6rem 0.9rem;
	background: var(--panel-2);
	border-bottom: 1px solid var(--border);
}
.card-head .dot {
	width: 11px; height: 11px;
	border-radius: 50%;
	background: #2f2f33;
}
.card-head .dot:nth-child(1) { background: #4a3b22; }
.card-head .dot:nth-child(2) { background: #3a3a3f; }
.card-head .dot:nth-child(3) { background: #2c2c30; }
.card-head .fname {
	margin-left: 6px;
	color: var(--muted);
	font-size: 0.82rem;
}
.kv {
	list-style: none;
	margin: 0; padding: 0.7rem 0.9rem 0.9rem;
}
.kv li {
	display: flex;
	gap: 0.6rem;
	padding: 0.32rem 0;
	font-size: 0.94rem;
	border-bottom: 1px dashed var(--border);
}
.kv li:last-child { border-bottom: none; }
.kv .k {
	color: var(--accent);
	min-width: 74px;
}
.kv .k::after { content: ":"; color: var(--comment); }
.kv .v { color: var(--fg-soft); }
.kv .status-open { color: var(--ok); }

/* ===================== SKILLS ===================== */
.skills-groups {
	display: grid;
	grid-template-columns: 1fr 1fr;
	gap: 1.8rem 2.5rem;
}
.skill-label {
	margin: 0 0 0.8rem;
	font-size: 0.95rem;
	font-weight: 500;
	color: var(--muted);
	text-transform: lowercase;
	letter-spacing: 0.5px;
}
.skills-grid {
	display: flex;
	flex-wrap: wrap;
	gap: 0.6rem;
	list-style: none;
	margin: 0; padding: 0;
}
.skills-grid li {
	border: 1px solid var(--border-light);
	border-radius: 8px;
	padding: 0.4rem 0.8rem;
	font-size: 0.9rem;
	color: var(--fg-soft);
	background: var(--panel);
	transition: border-color 0.2s var(--ease), color 0.2s var(--ease), transform 0.2s var(--ease);
}
.skills-grid li:hover {
	border-color: var(--accent);
	color: var(--fg);
	transform: translateY(-2px);
}
.skills-grid .lvl {
	color: var(--comment);
	font-size: 0.78rem;
	margin-left: 0.3rem;
}

/* ===================== PROJECTS ===================== */
.projects-grid {
	display: grid;
	grid-template-columns: 1fr 1fr;
	gap: 1.3rem;
}
.project-card {
	background: var(--panel);
	border: 1px solid var(--border);
	border-radius: var(--radius);
	padding: 1.3rem 1.4rem;
	display: flex;
	flex-direction: column;
	transition: border-color 0.25s var(--ease), transform 0.25s var(--ease), box-shadow 0.25s var(--ease);
}
.project-card:hover {
	border-color: var(--accent);
	transform: translateY(-4px);
	box-shadow: var(--shadow-accent);
}
.project-head {
	display: flex;
	align-items: center;
	gap: 0.5rem;
	margin-bottom: 0.7rem;
}
.project-head .brace { color: var(--accent); font-weight: 700; font-size: 1.2rem; }
.project-head h3 {
	margin: 0;
	font-size: 1.12rem;
	font-weight: 700;
	color: var(--fg);
}
.project-card p {
	margin: 0 0 1rem;
	color: var(--fg-dim);
	font-size: 0.95rem;
	flex-grow: 1;
}
.tags {
	display: flex;
	flex-wrap: wrap;
	gap: 0.4rem;
	list-style: none;
	margin: 0 0 0.9rem; padding: 0;
}
.tags li {
	font-size: 0.78rem;
	color: var(--accent);
	background: var(--accent-dim);
	border-radius: 6px;
	padding: 0.18rem 0.55rem;
}
.project-links {
	display: flex;
	gap: 1.1rem;
	align-items: center;
}
.project-links a {
	color: var(--muted);
	font-size: 0.9rem;
	transition: color 0.2s var(--ease);
}
.project-links a:hover { color: var(--accent); }
.project-links .badge {
	font-size: 0.78rem;
	color: var(--comment);
	border: 1px dashed var(--border-light);
	border-radius: 6px;
	padding: 0.18rem 0.5rem;
}
.project-card--ghost {
	border-style: dashed;
	background: transparent;
}
.project-card--ghost:hover { box-shadow: none; }

/* ===================== PHOTOGRAPHY / SLIDER ===================== */
#photography { overflow: hidden; }
.slider {
	display: flex;
	gap: 4vmin;
	width: max-content;
	padding: 0.5rem 4vmin;
	cursor: grab;
	user-select: none;
	will-change: transform;
}
.slider:active { cursor: grabbing; }
.slider > .image {
	width: clamp(260px, 62vmin, 540px);
	height: clamp(190px, 44vmin, 360px);
	object-fit: cover;
	object-position: 100% center;
	border-radius: var(--radius);
	border: 1px solid var(--border);
	transition: border-color 0.3s var(--ease);
}
.slider > .image:hover { border-color: var(--accent); }

/* ===================== CONTACT ===================== */
.contact-box {
	background: var(--panel);
	border: 1px solid var(--border);
	border-radius: var(--radius);
	overflow: hidden;
	max-width: 640px;
}
.contact-body { padding: 1.1rem 1.3rem 1.3rem; }
.line { margin: 0.15rem 0; font-size: 0.95rem; }
.line.out { color: var(--accent); margin-bottom: 0.8rem; }
.contact-links {
	display: flex;
	flex-direction: column;
	gap: 0.55rem;
	margin: 0.7rem 0 0.9rem;
	padding-left: 1.1rem;
}
.contact-links a {
	display: inline-flex;
	align-items: center;
	gap: 0.6rem;
	color: var(--fg-soft);
	font-size: 0.96rem;
	width: fit-content;
	transition: color 0.2s var(--ease), transform 0.2s var(--ease);
}
.contact-links a:hover { color: var(--accent); transform: translateX(3px); }
.contact-links svg { color: var(--muted); transition: color 0.2s var(--ease); }
.contact-links a:hover svg { color: var(--accent); }

.cursor-blink { animation: blink 1.1s steps(1) infinite; color: var(--accent); }
@keyframes blink { 0%, 50% { opacity: 1; } 50.01%, 100% { opacity: 0; } }

/* copy-to-clipboard button (contact email) */
.copy-btn {
	width: fit-content;
	font-family: inherit;
	background: none;
	border: 1px dashed var(--border-light);
	border-radius: 6px;
	color: var(--muted);
	font-size: 0.78rem;
	padding: 0.12rem 0.5rem;
	margin-left: 0.5rem;
	cursor: pointer;
	transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}
.copy-btn:hover { color: var(--accent); border-color: var(--accent); }
.copy-btn.copied { color: var(--ok); border-color: var(--ok); }

/* ===================== LIGHTBOX ===================== */
.lightbox {
	position: fixed;
	inset: 0;
	z-index: 200;
	display: flex;
	align-items: center;
	justify-content: center;
	background: rgba(0, 0, 0, 0.93);
	opacity: 0;
	pointer-events: none;
	transition: opacity 0.25s var(--ease);
}
.lightbox.open { opacity: 1; pointer-events: auto; }
.lb-img {
	max-width: 90vw;
	max-height: 82vh;
	border-radius: var(--radius);
	border: 1px solid rgba(255, 255, 255, 0.14);
}
.lightbox button {
	position: absolute;
	background: rgba(255, 255, 255, 0.06);
	border: 1px solid rgba(255, 255, 255, 0.18);
	border-radius: 10px;
	color: #eee;
	font-size: 1.3rem;
	line-height: 1;
	padding: 0.45rem 0.75rem;
	cursor: pointer;
	font-family: inherit;
	transition: background 0.2s var(--ease), border-color 0.2s var(--ease);
}
.lightbox button:hover { background: rgba(255, 255, 255, 0.16); border-color: rgba(255, 255, 255, 0.4); }
.lb-close { top: 1rem; right: 1.1rem; font-size: 1.6rem; }
.lb-prev { left: 1rem; top: 50%; transform: translateY(-50%); }
.lb-next { right: 1rem; top: 50%; transform: translateY(-50%); }
.lb-caption {
	position: absolute;
	bottom: 1.1rem;
	left: 50%;
	transform: translateX(-50%);
	display: flex;
	gap: 1.2rem;
	color: #cfcfcf;
	font-size: 0.88rem;
	white-space: nowrap;
	max-width: 92vw;
	overflow: hidden;
}
.lb-count { color: #8b8b90; }

/* ===================== FOOTER ===================== */
.footer {
	border-top: 1px solid var(--border);
	padding: 1.6rem clamp(1rem, 4vw, 2.5rem);
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: 1rem;
	flex-wrap: wrap;
	font-size: 0.85rem;
}
.footer .brand-sm { color: var(--accent); font-weight: 700; }
.footer .muted { color: var(--muted); }
.footer .back-top { color: var(--muted); transition: color 0.2s var(--ease); }
.footer .back-top:hover { color: var(--accent); }

/* ===================== REVEAL ON SCROLL ===================== */
html.js .reveal {
	opacity: 0;
	transform: translateY(24px);
	transition: opacity 0.6s var(--ease), transform 0.6s var(--ease);
}
html.js .reveal.visible {
	opacity: 1;
	transform: none;
}

/* ===================== RESPONSIVE ===================== */
@media (max-width: 760px) {
	.nav-toggle { display: flex; }
	.theme-toggle .theme-name { display: none; }
	.theme-toggle { padding: 0.45rem 0.55rem; }
	.nav-links {
		position: fixed;
		top: var(--nav-h); left: 0; right: 0;
		flex-direction: column;
		align-items: flex-start;
		gap: 0;
		background: var(--nav-bg-mobile);
		border-bottom: 1px solid var(--border);
		padding: 0.5rem 1.4rem 1rem;
		transform: translateY(-12px);
		opacity: 0;
		pointer-events: none;
		transition: opacity 0.25s var(--ease), transform 0.25s var(--ease);
	}
	.nav-links.open {
		opacity: 1;
		transform: none;
		pointer-events: auto;
	}
	.nav-links li { width: 100%; }
	.nav-links a {
		display: block;
		width: 100%;
		padding: 0.7rem 0;
		font-size: 1.05rem;
		border-bottom: 1px solid var(--border);
	}
	.nav-resume {
		border: none;
		padding: 0.7rem 0;
		border-radius: 0;
	}
	.nav-resume:hover { background: none; }

	.about-grid { grid-template-columns: 1fr; gap: 1.6rem; }
	.skills-groups { grid-template-columns: 1fr; gap: 1.4rem; }
	.projects-grid { grid-template-columns: 1fr; }
	.footer { justify-content: center; text-align: center; }
}

/* ===================== MOTION PREFERENCES ===================== */
@media (prefers-reduced-motion: reduce) {
	html { scroll-behavior: auto; }
	*, *::before, *::after {
		animation-duration: 0.001ms !important;
		animation-iteration-count: 1 !important;
		transition-duration: 0.001ms !important;
	}
	html.js .reveal { opacity: 1; transform: none; }
}