@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&family=Source+Serif+4:wght@400;600;700&display=swap');

*, *::before, *::after {
	box-sizing: border-box;
	margin: 0;
	padding: 0;
}

:root {
	--bg-primary: #f3f1ee;
	--bg-secondary: #faf9f7;
	--bg-hero: #5b6d66;
	--text-primary: #2c2c2c;
	--text-secondary: #5e5e5e;
	--text-muted: #8a8a8a;
	--border-color: #ddd8d2;
	--card-bg: #fff;
	--card-shadow: 0 2px 12px rgba(0,0,0,0.06);
	--card-hover-shadow: 0 8px 30px rgba(0,0,0,0.10);
	--accent: #6b8f8a;
	--accent-light: #84a8a2;
	--tag-bg: #e9efed;
	--tag-text: #4e7169;
	--nav-bg: rgba(45,50,48,0.88);
	--nav-text: #fff;
	--badge-demo: #7aab7e;
	--badge-video: #c0796b;
	--badge-opensource: #6e97b0;
	--badge-soon: #a0a09a;
	--badge-commercial: #7aab7e;
	--section-gap: 80px;
	--font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
	--font-heading: 'Source Serif 4', Georgia, serif;
}

body.dark-mode {
	--bg-primary: #1a1d1c;
	--bg-secondary: #222624;
	--bg-hero: #1a2420;
	--text-primary: #e0ddd8;
	--text-secondary: #a8a5a0;
	--text-muted: #777;
	--border-color: #3a3d3a;
	--card-bg: #282c2a;
	--card-shadow: 0 2px 12px rgba(0,0,0,0.25);
	--card-hover-shadow: 0 8px 30px rgba(0,0,0,0.4);
	--accent: #84a8a2;
	--accent-light: #9ec0b8;
	--tag-bg: #2e3835;
	--tag-text: #8ab8ad;
	--nav-bg: rgba(20,24,22,0.92);
}

html {
	scroll-behavior: smooth;
}

body {
	font-family: var(--font-body);
	background: var(--bg-primary);
	color: var(--text-primary);
	line-height: 1.6;
	transition: background 0.3s, color 0.3s;
}

html.lang-en .lang-cn { display: none; }
html.lang-cn .lang-en { display: none; }

a {
	color: var(--accent);
	text-decoration: none;
	transition: color 0.2s;
}

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

img {
	max-width: 100%;
	height: auto;
}

/* ============================================================
   NAV BAR
   ============================================================ */

.navbar {
	position: fixed;
	top: 20px;
	left: 50%;
	transform: translateX(-50%);
	background: var(--nav-bg);
	backdrop-filter: blur(12px);
	-webkit-backdrop-filter: blur(12px);
	border-radius: 50px;
	padding: 10px 28px;
	display: flex;
	align-items: center;
	gap: 8px;
	z-index: 1000;
	transition: transform 0.4s ease, opacity 0.4s ease;
	box-shadow: 0 4px 20px rgba(0,0,0,0.15);
}


.nav-links {
	display: flex;
	align-items: center;
	gap: 4px;
	list-style: none;
}

.nav-links a {
	color: var(--nav-text);
	font-size: 0.82em;
	font-weight: 500;
	padding: 6px 14px;
	border-radius: 25px;
	transition: background 0.2s;
	white-space: nowrap;
}

.nav-links a:hover {
	background: rgba(255,255,255,0.15);
	color: #fff;
}

.nav-controls {
	display: flex;
	align-items: center;
	gap: 8px;
	margin-left: 8px;
}

.dark-mode-btn {
	background: none;
	border: none;
	color: var(--nav-text);
	font-size: 1.1em;
	cursor: pointer;
	padding: 6px;
	border-radius: 50%;
	transition: background 0.2s;
	display: flex;
	align-items: center;
}

.dark-mode-btn:hover {
	background: rgba(255,255,255,0.15);
}

.lang-toggle {
	display: inline-flex;
	border: 1px solid rgba(255,255,255,0.3);
	border-radius: 16px;
	overflow: hidden;
	font-size: 0.72em;
	font-weight: 600;
	cursor: pointer;
	background: none;
	padding: 0;
}

.lang-toggle span {
	padding: 4px 10px;
	color: rgba(255,255,255,0.5);
	transition: all 0.25s;
}

.lang-toggle span.active {
	background: rgba(255,255,255,0.2);
	color: #fff;
}

/* ============================================================
   HERO SECTION
   ============================================================ */

.hero {
	min-height: 100vh;
	display: flex;
	flex-direction: column;
	justify-content: center;
	align-items: center;
	text-align: center;
	background: var(--bg-hero);
	color: #fff;
	position: relative;
	overflow: hidden;
	padding: 80px 20px;
}

.hero-content {
	position: relative;
	z-index: 2;
}

.hero h1 {
	font-family: var(--font-heading);
	font-size: 3.2em;
	font-weight: 700;
	margin-bottom: 12px;
	line-height: 1.2;
}

.hero .subtitle {
	font-size: 1.1em;
	font-weight: 300;
	opacity: 0.85;
	margin-bottom: 8px;
}

.hero .typing-line {
	font-size: 1.4em;
	font-weight: 500;
	height: 1.6em;
	margin-top: 8px;
}

.hero .typing-line #dynamicText {
	border-right: 2px solid rgba(255,255,255,0.7);
	padding-right: 4px;
	animation: blink 0.8s infinite;
}

@keyframes blink {
	0%, 100% { border-color: rgba(255,255,255,0.7); }
	50% { border-color: transparent; }
}

/* ── Fixed Social Sidebar ── */

.social-strip {
	position: fixed;
	left: 0;
	top: 50%;
	transform: translateY(-50%);
	background: rgba(255,255,255,0.92);
	backdrop-filter: blur(8px);
	-webkit-backdrop-filter: blur(8px);
	padding: 14px 10px;
	display: flex;
	flex-direction: column;
	align-items: center;
	gap: 6px;
	border-radius: 0 10px 10px 0;
	box-shadow: 2px 0 12px rgba(0,0,0,0.08);
	z-index: 1100;
	transition: transform 0.35s ease, opacity 0.35s ease;
}

body.dark-mode .social-strip {
	background: rgba(40,44,42,0.92);
	box-shadow: 2px 0 12px rgba(0,0,0,0.3);
}

.social-strip a {
	display: flex;
	align-items: center;
	justify-content: center;
	width: 34px;
	height: 34px;
	border-radius: 6px;
	color: var(--text-secondary);
	font-size: 1.05em;
	transition: all 0.2s;
}

.social-strip a:hover {
	background: var(--accent);
	color: #fff;
	transform: scale(1.1);
}


.hero .scroll-hint {
	position: absolute;
	bottom: 30px;
	left: 50%;
	transform: translateX(-50%);
	font-size: 0.8em;
	opacity: 0.5;
	animation: bounce 2s infinite;
}

@keyframes bounce {
	0%, 100% { transform: translateX(-50%) translateY(0); }
	50% { transform: translateX(-50%) translateY(8px); }
}

/* Stars for dark mode hero */
.stars-container {
	position: absolute;
	top: 0; left: 0;
	width: 100%; height: 100%;
	pointer-events: none;
	z-index: 1;
}

.star {
	position: absolute;
	background: #fff;
	border-radius: 50%;
	animation: twinkle 3s infinite;
}

.star.small { width: 1px; height: 1px; opacity: 0.4; }
.star.medium { width: 2px; height: 2px; opacity: 0.6; }
.star.large { width: 3px; height: 3px; opacity: 0.8; }

@keyframes twinkle {
	0%, 100% { opacity: 0.3; }
	50% { opacity: 1; }
}

/* ============================================================
   SECTION COMMON
   ============================================================ */

.section {
	padding: var(--section-gap) 20px;
	max-width: 1200px;
	margin: 0 auto;
}

.section-header {
	text-align: center;
	margin-bottom: 40px;
}

.section-header h2 {
	font-family: var(--font-heading);
	font-size: 2em;
	font-weight: 700;
	margin-bottom: 10px;
	color: var(--text-primary);
}

.section-header p {
	color: var(--text-secondary);
	font-size: 0.95em;
	max-width: 600px;
	margin: 0 auto;
}

/* ============================================================
   ABOUT SECTION
   ============================================================ */

.about-grid {
	display: grid;
	grid-template-columns: 300px 1fr;
	gap: 60px;
	align-items: center;
}

.about-avatar {
	text-align: center;
}

.about-avatar img {
	width: 220px;
	height: 220px;
	border-radius: 50%;
	object-fit: cover;
	border: 4px solid var(--accent);
}

.about-name {
	font-family: var(--font-heading);
	font-size: 1.3em;
	font-weight: 700;
	color: var(--text-primary);
	margin-top: 16px;
}

.about-tagline {
	font-size: 0.88em;
	color: var(--accent);
	font-weight: 500;
	margin-top: 4px;
	letter-spacing: 0.5px;
}

.about-text {
	font-size: 1.08em;
	line-height: 1.9;
	color: var(--text-secondary);
}

.about-text p {
	margin-bottom: 1.2em;
}

.about-highlights {
	display: flex;
	gap: 20px;
	flex-wrap: wrap;
	margin-bottom: 20px;
}

.highlight-item {
	display: flex;
	align-items: center;
	gap: 8px;
	font-size: 0.88em;
	font-weight: 500;
	color: var(--text-primary);
	background: var(--tag-bg);
	padding: 8px 16px;
	border-radius: 8px;
}

.highlight-item i {
	color: var(--accent);
	font-size: 1.1em;
}

.about-social-mobile {
	display: none;
	gap: 12px;
	margin-top: 8px;
}

.about-social-mobile a {
	display: flex;
	align-items: center;
	justify-content: center;
	width: 42px;
	height: 42px;
	border-radius: 10px;
	background: var(--tag-bg);
	color: var(--text-secondary);
	font-size: 1.15em;
	transition: all 0.2s;
}

.about-social-mobile a:hover {
	background: var(--accent);
	color: #fff;
	transform: translateY(-2px);
}

.about-buttons {
	display: flex;
	gap: 10px;
	flex-wrap: wrap;
	margin-top: 16px;
}

.btn {
	display: inline-flex;
	align-items: center;
	gap: 6px;
	padding: 10px 22px;
	border-radius: 25px;
	font-size: 0.85em;
	font-weight: 600;
	transition: all 0.2s;
	cursor: pointer;
	border: none;
}

.btn-primary {
	background: var(--accent);
	color: #fff;
}

.btn-primary:hover {
	background: var(--accent-light);
	color: #fff;
}

.btn-outline {
	background: transparent;
	color: var(--accent);
	border: 1.5px solid var(--accent);
}

.btn-outline:hover {
	background: var(--accent);
	color: #fff;
}

/* ============================================================
   PROJECTS SECTION (ShowDevKit Showcase Layout)
   ============================================================ */

.projects-bg {
	background: var(--bg-secondary);
}

body.dark-mode .projects-bg {
	background: var(--bg-secondary);
}

.projects-bg .section-header h2 {
	color: var(--text-primary);
}

.projects-bg .section-header p {
	color: var(--text-secondary);
}

.project-tabs {
	display: flex;
	justify-content: center;
	gap: 12px;
	margin-bottom: 36px;
	flex-wrap: wrap;
}

.tab-btn {
	padding: 8px 24px;
	border-radius: 25px;
	border: 1.5px solid var(--border-color);
	background: var(--card-bg);
	color: var(--text-secondary);
	font-size: 0.85em;
	font-weight: 600;
	cursor: pointer;
	transition: all 0.2s;
	font-family: var(--font-body);
}

.tab-btn:hover {
	border-color: var(--accent);
	color: var(--accent);
}

.tab-btn.active {
	background: var(--accent);
	border-color: var(--accent);
	color: #fff;
}

.project-showcase {
	display: flex;
	align-items: center;
	gap: 36px;
	max-width: 1100px;
	margin: 0 auto 40px auto;
	padding: 0 20px;
}

.project-showcase .image-section {
	flex: 0 0 432px;
	display: flex;
	justify-content: center;
	align-items: center;
}

.project-showcase .image-section a,
.project-showcase .image-section > img {
	display: block;
	width: 100%;
	height: 243px;
	border-radius: 10px;
	overflow: hidden;
	border: 1px solid var(--border-color);
	background: var(--card-bg);
	box-shadow: var(--card-shadow);
}

.project-showcase .snapshot-image {
	width: 100%;
	height: 100%;
	object-fit: cover;
	display: block;
	cursor: pointer;
	transition: transform 0.3s;
}

.project-showcase .snapshot-image:hover {
	transform: scale(1.05);
}

.project-showcase .coming-soon-placeholder {
	width: 100%;
	height: 243px;
	border-radius: 10px;
	border: 1px solid var(--border-color);
	background: var(--bg-primary);
	display: flex;
	align-items: center;
	justify-content: center;
	color: var(--text-muted);
	font-size: 1.1em;
	font-weight: 600;
}

.project-showcase .text-section {
	flex: 1;
	display: flex;
	flex-direction: column;
	height: 243px;
	overflow: hidden;
}

.project-title {
	font-family: var(--font-heading);
	font-size: 1.5em;
	font-weight: 700;
	color: var(--text-primary);
	margin-bottom: 6px;
	line-height: 1.3;
	flex-shrink: 0;
}

.project-meta-row {
	display: flex;
	align-items: center;
	gap: 10px;
	flex-wrap: wrap;
	margin-bottom: 8px;
	flex-shrink: 0;
}

.project-status {
	display: inline-flex;
	align-items: center;
	gap: 5px;
	background: #fff;
	border-radius: 5px;
	padding: 3px 12px;
	font-size: 0.8em;
	font-weight: 600;
	width: fit-content;
	flex-shrink: 0;
}

.project-status.live { color: #4CAF50; }
.project-status.video { color: #e74c3c; }
.project-status.opensource { color: #3498db; }
.project-status.soon { color: #95a5a6; }
.project-status.commercial { color: #27ae60; }

.project-status .status-dot {
	font-size: 0.5em;
	animation: blink-dot 1.2s infinite;
}

@keyframes blink-dot {
	0%, 100% { opacity: 1; }
	50% { opacity: 0.2; }
}

.project-desc-wrap {
	flex: 1;
	min-height: 0;
	overflow: hidden;
	position: relative;
	margin-bottom: 10px;
}

.project-description {
	font-size: 0.92em;
	color: var(--text-secondary);
	line-height: 1.6;
	margin: 0;
}

.project-desc-wrap.clamped .project-description {
	display: -webkit-box;
	-webkit-line-clamp: 3;
	-webkit-box-orient: vertical;
	overflow: hidden;
}

.desc-toggle {
	background: none;
	border: none;
	color: var(--accent);
	font-size: 0.82em;
	font-weight: 600;
	cursor: pointer;
	padding: 2px 0;
	margin-top: 2px;
	display: none;
}

.project-desc-wrap.clamped .desc-toggle {
	display: inline-block;
}

.project-desc-wrap.expanded .project-description {
	display: block;
	-webkit-line-clamp: unset;
	overflow: visible;
}

.project-desc-wrap.expanded .desc-toggle {
	display: inline-block;
}

.tech-stack {
	display: flex;
	gap: 6px;
	flex-wrap: wrap;
	align-items: center;
	flex-shrink: 0;
}

.tech-badge {
	background: var(--tag-bg);
	color: var(--tag-text);
	padding: 4px 12px;
	border-radius: 4px;
	font-size: 0.75em;
	font-weight: 500;
}

.project-actions {
	display: flex;
	gap: 10px;
	flex-wrap: wrap;
	flex-shrink: 0;
	margin-top: auto;
}

.case-study-btn {
	background: var(--accent);
	color: #fff;
	padding: 8px 20px;
	border-radius: 5px;
	font-weight: 700;
	font-size: 0.82em;
	text-transform: uppercase;
	letter-spacing: 0.3px;
	transition: background 0.2s, transform 0.2s;
	display: inline-flex;
	align-items: center;
	gap: 6px;
}

.case-study-btn i {
	font-size: 1.1em;
}

.case-study-btn:hover {
	background: var(--accent-light);
	transform: translateY(-1px);
	color: #fff;
}

.project-divider {
	border: none;
	border-top: 1px solid var(--border-color);
	margin: 0 auto 40px auto;
	max-width: 1100px;
}

/* ── Per-category accent colors for project showcases ── */

.project-group[data-group="solutions"] .project-title { color: #4e7169; }
.project-group[data-group="solutions"] .project-status { color: #4e7169; }
.project-group[data-group="solutions"] .tech-badge { background: #e4efec; color: #3d6058; }
.project-group[data-group="solutions"] .case-study-btn { background: #6b8f8a; }
.project-group[data-group="solutions"] .case-study-btn:hover { background: #84a8a2; }

.project-group[data-group="technical"] .project-title { color: #6b5e7a; }
.project-group[data-group="technical"] .project-status { color: #6b5e7a; }
.project-group[data-group="technical"] .tech-badge { background: #ede6f2; color: #5a4e6b; }
.project-group[data-group="technical"] .case-study-btn { background: #8a7da0; }
.project-group[data-group="technical"] .case-study-btn:hover { background: #a096b4; }

body.dark-mode .project-group[data-group="solutions"] .project-title { color: #8ab8ad; }
body.dark-mode .project-group[data-group="solutions"] .tech-badge { background: #2e3835; color: #8ab8ad; }
body.dark-mode .project-group[data-group="solutions"] .case-study-btn { background: #6b8f8a; }

body.dark-mode .project-group[data-group="technical"] .project-title { color: #b0a4c4; }
body.dark-mode .project-group[data-group="technical"] .tech-badge { background: #302a3a; color: #b0a4c4; }
body.dark-mode .project-group[data-group="technical"] .case-study-btn { background: #8a7da0; }

.project-group[data-group="commercial"] .project-title { color: #7a6a4e; }
.project-group[data-group="commercial"] .project-status { color: #7a6a4e; }
.project-group[data-group="commercial"] .tech-badge { background: #f0ebe0; color: #6b5c42; }
.project-group[data-group="commercial"] .case-study-btn { background: #a08c6a; }
.project-group[data-group="commercial"] .case-study-btn:hover { background: #b8a482; }

body.dark-mode .project-group[data-group="commercial"] .project-title { color: #c4b8a0; }
body.dark-mode .project-group[data-group="commercial"] .tech-badge { background: #3a3428; color: #c4b8a0; }
body.dark-mode .project-group[data-group="commercial"] .case-study-btn { background: #a08c6a; }

/* ============================================================
   WORK EXPERIENCE SECTION
   ============================================================ */

.work-bg {
	background: var(--accent);
	background-image: url('data:image/svg+xml,<svg viewBox="0 0 200 200" xmlns="http://www.w3.org/2000/svg"><filter id="n"><feTurbulence type="fractalNoise" baseFrequency="0.65" numOctaves="3" stitchTiles="stitch"/></filter><rect width="100%25" height="100%25" filter="url(%23n)" opacity="0.05"/></svg>');
}

body.dark-mode .work-bg {
	background-color: #1a2420;
	background-image: none;
}

.work-bg .section-header h2,
.work-bg .section-header p {
	color: #fff;
}

.timeline {
	display: flex;
	flex-direction: row;
	justify-content: center;
	align-items: stretch;
	gap: 28px;
	max-width: 1100px;
	margin: 0 auto;
	flex-wrap: wrap;
}

.timeline-item {
	background: var(--card-bg);
	border-radius: 12px;
	box-shadow: 0 2px 8px rgba(0,0,0,0.07);
	padding: 28px 22px;
	flex: 1;
	min-width: 240px;
	max-width: 320px;
	display: flex;
	flex-direction: column;
	align-items: center;
	text-align: center;
	transition: transform 0.2s;
}

.timeline-item:hover {
	transform: translateY(-3px);
}

body.dark-mode .timeline-item {
	background: #282c2a;
	border: 1px solid rgba(255,255,255,0.08);
}

.timeline-icon {
	width: 54px;
	height: 54px;
	background: var(--tag-bg);
	border-radius: 50%;
	display: flex;
	align-items: center;
	justify-content: center;
	margin-bottom: 16px;
	font-size: 1.4em;
	color: var(--accent);
}

.timeline-icon.edu-logo {
	width: 68px;
	height: 68px;
	background: #fff;
	padding: 6px;
	overflow: hidden;
	box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.timeline-icon.edu-logo img {
	width: 100%;
	height: 100%;
	object-fit: contain;
	border-radius: 50%;
}

body.dark-mode .timeline-icon.edu-logo {
	background: #f5f5f5;
}

.timeline-content h3 {
	font-size: 1.05em;
	font-weight: 700;
	color: var(--accent);
	margin-bottom: 4px;
}

body.dark-mode .timeline-content h3 {
	color: #fff;
}

.timeline-company {
	font-size: 0.92em;
	color: var(--text-secondary);
	font-weight: 500;
	margin-bottom: 2px;
}

.timeline-date {
	font-size: 0.82em;
	color: var(--text-muted);
	margin-bottom: 10px;
}

.timeline-content p {
	font-size: 0.88em;
	color: var(--text-secondary);
	line-height: 1.5;
}

/* ============================================================
   SKILLS SECTION
   ============================================================ */

.skills-section {
	padding: var(--section-gap) 20px;
	text-align: center;
	background: #f0ece6;
	border-top: 1px solid var(--border-color);
}

body.dark-mode .skills-section {
	background: #222624;
	border-top: 1px solid rgba(255,255,255,0.08);
}

.skills-section .section-header h2 {
	color: var(--text-primary);
}

.skills-section .section-header p {
	color: var(--text-secondary);
}

.skills-grid {
	display: grid;
	grid-template-columns: repeat(auto-fit, minmax(90px, 1fr));
	gap: 20px;
	max-width: 1000px;
	margin: 0 auto;
}

.skill-card {
	display: flex;
	flex-direction: column;
	align-items: center;
	text-align: center;
	transition: transform 0.2s;
	padding: 12px 6px;
}

.skill-card:hover {
	transform: translateY(-3px);
}

.skill-icon {
	width: 48px;
	height: 48px;
	border-radius: 10px;
	background: var(--tag-bg);
	display: flex;
	align-items: center;
	justify-content: center;
	font-size: 1.4em;
	color: var(--accent);
	margin-bottom: 8px;
	transition: background 0.2s;
}

.skill-card:hover .skill-icon {
	background: var(--accent);
	color: #fff;
}

.skill-name {
	font-size: 0.75em;
	font-weight: 600;
	color: var(--text-primary);
}

/* ============================================================
   INSIGHTS SECTION
   ============================================================ */

.insights-bg {
	background: var(--bg-secondary);
}

.insight-list {
	display: grid;
	grid-template-columns: 1fr;
	gap: 12px;
}

.insight-item {
	background: var(--card-bg);
	border: 1px solid var(--border-color);
	border-radius: 10px;
	padding: 18px 22px;
	cursor: pointer;
	transition: all 0.2s;
	display: flex;
	justify-content: space-between;
	align-items: center;
	gap: 16px;
}

.insight-item:hover {
	border-color: var(--accent);
	box-shadow: var(--card-shadow);
	transform: translateX(4px);
}

.insight-item h3 {
	font-size: 0.92em;
	font-weight: 600;
	color: var(--text-primary);
	margin-bottom: 4px;
}

.insight-item p {
	font-size: 0.8em;
	color: var(--text-muted);
	line-height: 1.4;
}

.insight-item .insight-date {
	font-size: 0.75em;
	color: var(--text-muted);
	white-space: nowrap;
	flex-shrink: 0;
}

/* ============================================================
   CONTACT SECTION
   ============================================================ */

.contact-section {
	background: var(--bg-secondary);
}

.contact-info {
	display: flex;
	gap: 30px;
	justify-content: center;
	flex-wrap: wrap;
	margin-top: 20px;
}

.contact-info .contact-item {
	display: flex;
	align-items: center;
	gap: 10px;
	font-size: 0.95em;
	color: var(--text-secondary);
}

.contact-info .contact-item i {
	font-size: 1.3em;
	color: var(--accent);
}

/* ============================================================
   FOOTER
   ============================================================ */

.site-footer {
	background: #000;
	color: rgba(255,255,255,0.5);
	text-align: center;
	padding: 30px 20px;
	font-size: 0.82em;
}

.site-footer .footer-links {
	display: flex;
	justify-content: center;
	gap: 16px;
	margin-bottom: 12px;
}

.site-footer .footer-links a {
	color: rgba(255,255,255,0.6);
	font-size: 1.3em;
	transition: color 0.2s;
}

.site-footer .footer-links a:hover {
	color: #fff;
}

/* ============================================================
   VIDEO & PDF MODALS
   ============================================================ */

.modal-overlay {
	display: none;
	position: fixed;
	inset: 0;
	background: rgba(0,0,0,0.75);
	justify-content: center;
	align-items: center;
	z-index: 10000;
}

.modal-content {
	position: relative;
	width: 90%;
	height: 90%;
	background: #fff;
	border-radius: 8px;
	overflow: hidden;
	box-shadow: 0 8px 40px rgba(0,0,0,0.4);
}

.modal-content.fullscreen {
	width: 100%;
	height: 100%;
	border-radius: 0;
}

.modal-content iframe {
	width: 100%;
	height: 100%;
	border: none;
}

.modal-close, .modal-fullscreen {
	position: absolute;
	top: 10px;
	background: #fff;
	border: none;
	padding: 6px 10px;
	cursor: pointer;
	border-radius: 4px;
	font-size: 1.1em;
	box-shadow: 0 1px 4px rgba(0,0,0,0.3);
	z-index: 10;
}

.modal-close { right: 10px; }
.modal-fullscreen { right: 55px; }

.video-modal {
	display: none;
	position: fixed;
	inset: 0;
	background: rgba(0,0,0,0.92);
	z-index: 10000;
}

.video-modal-inner {
	position: relative;
	width: 90%;
	max-width: 800px;
	margin: 50px auto;
}

.video-modal-close {
	position: absolute;
	top: -35px;
	right: -10px;
	background: none;
	border: none;
	color: #fff;
	font-size: 1.8em;
	cursor: pointer;
}

.video-modal-inner .video-wrap {
	position: relative;
	padding-bottom: 56.25%;
	height: 0;
	overflow: hidden;
}

.video-modal-inner .video-wrap iframe {
	position: absolute;
	top: 0; left: 0;
	width: 100%; height: 100%;
}

/* ============================================================
   RESPONSIVE: TABLET
   ============================================================ */

@media screen and (max-width: 980px) {
	.hero h1 { font-size: 2.4em; }
	.hero .typing-line { font-size: 1.15em; }

	.about-grid {
		grid-template-columns: 1fr;
		text-align: center;
	}

	.section {
		padding: 50px 16px;
	}

	.navbar {
		padding: 8px 16px;
		gap: 4px;
	}

	.nav-links a {
		padding: 6px 10px;
		font-size: 0.75em;
	}

	.about-avatar img {
		width: 180px;
		height: 180px;
	}

	.about-highlights {
		justify-content: center;
	}

	.project-showcase {
		flex-direction: column;
		text-align: center;
		gap: 20px;
		padding: 0 16px;
	}

	.project-showcase .image-section {
		flex: 0 0 auto;
		width: 100%;
	}

	.project-showcase .image-section a,
	.project-showcase .image-section > img {
		height: 220px;
	}

	.project-showcase .coming-soon-placeholder {
		height: 220px;
	}

	.project-showcase .text-section {
		height: auto;
		overflow: visible;
	}

	.project-title { font-size: 1.35em; }

	.project-meta-row { justify-content: center; }

	.project-actions { justify-content: center; }

	.timeline {
		flex-direction: column;
		align-items: center;
	}

	.timeline-item {
		max-width: 100%;
		flex-direction: row;
		text-align: left;
		align-items: flex-start;
		gap: 16px;
	}

	.timeline-icon { margin-bottom: 0; min-width: 54px; }

	.skills-grid {
		grid-template-columns: repeat(auto-fit, minmax(70px, 1fr));
		gap: 14px;
	}
}

/* ============================================================
   RESPONSIVE: MOBILE
   ============================================================ */

@media screen and (max-width: 736px) {
	.hero h1 { font-size: 1.8em; }
	.hero .typing-line { font-size: 1em; }
	.hero .subtitle { font-size: 0.9em; }

	.navbar {
		top: 10px;
		padding: 6px 12px;
		border-radius: 30px;
	}

	.nav-links a {
		padding: 5px 8px;
		font-size: 0.7em;
	}

	.section {
		padding: 40px 14px;
	}

	.section-header h2 {
		font-size: 1.5em;
	}

	.about-grid { gap: 24px; }

	.about-avatar img {
		width: 140px;
		height: 140px;
	}

	.social-strip { display: none; }

	.about-social-mobile {
		display: flex;
		justify-content: center;
	}

	.about-highlights {
		justify-content: center;
	}

	.project-title { font-size: 1.2em; }
	.project-description { font-size: 0.88em; }

	.insight-item {
		flex-direction: column;
		align-items: flex-start;
	}

	.contact-info {
		flex-direction: column;
		align-items: center;
	}

	.tab-btn {
		padding: 6px 16px;
		font-size: 0.8em;
	}
}

/* ============================================================
   RESPONSIVE: SMALL MOBILE
   ============================================================ */

@media screen and (max-width: 480px) {
	.hero h1 { font-size: 1.5em; }
	.hero .typing-line { font-size: 0.9em; }

	.navbar {
		gap: 2px;
		padding: 5px 8px;
	}

	.nav-links a {
		padding: 4px 6px;
		font-size: 0.65em;
	}

	.section {
		padding: 30px 10px;
	}

	.about-avatar img {
		width: 100px;
		height: 100px;
	}

	.project-showcase { margin-bottom: 30px; }
	.project-title { font-size: 1.1em; }

	.skills-grid {
		grid-template-columns: repeat(auto-fit, minmax(60px, 1fr));
		gap: 10px;
	}

	.skill-icon {
		width: 40px;
		height: 40px;
		font-size: 1.2em;
	}

	.skill-name { font-size: 0.68em; }
}