/* ==========================================================================
   Frank Portfolio – Main Stylesheet
   ========================================================================== */

:root {
	--color-bg: #080b12;
	--color-bg-elevated: #0f1420;
	--color-bg-card: #121826;
	--color-border: rgba(255, 255, 255, 0.08);
	--color-text: #e8edf7;
	--color-text-muted: #9aa8c2;
	--color-accent: #3b82f6;
	--color-accent-2: #8b5cf6;
	--gradient: linear-gradient(135deg, #3b82f6 0%, #6366f1 50%, #8b5cf6 100%);
	--gradient-soft: linear-gradient(135deg, rgba(59, 130, 246, 0.15), rgba(139, 92, 246, 0.1));
	--font: 'Inter', system-ui, -apple-system, sans-serif;
	--radius: 12px;
	--radius-lg: 20px;
	--shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
	--container: 1200px;
	--header-height: 72px;
}

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

html {
	scroll-behavior: smooth;
}

body {
	margin: 0;
	font-family: var(--font);
	font-size: 16px;
	line-height: 1.6;
	color: var(--color-text);
	background: var(--color-bg);
	-webkit-font-smoothing: antialiased;
}

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

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

a:hover { color: #60a5fa; }

.container {
	width: min(100% - 2rem, var(--container));
	margin-inline: auto;
}

.section {
	padding: 5rem 0;
}

.section-label {
	display: inline-block;
	font-size: 0.75rem;
	font-weight: 600;
	letter-spacing: 0.12em;
	text-transform: uppercase;
	color: var(--color-accent);
	margin-bottom: 1.5rem;
}

.section-cta {
	text-align: center;
	margin-top: 2.5rem;
}

/* Buttons */
.btn {
	display: inline-flex;
	align-items: center;
	gap: 0.5rem;
	padding: 0.875rem 1.5rem;
	border-radius: 999px;
	font-weight: 600;
	font-size: 0.9375rem;
	border: none;
	cursor: pointer;
	transition: transform 0.2s, box-shadow 0.2s, background 0.2s;
}

.btn--primary {
	background: var(--gradient);
	color: #fff;
	box-shadow: 0 4px 20px rgba(59, 130, 246, 0.35);
}

.btn--primary:hover {
	color: #fff;
	transform: translateY(-2px);
	box-shadow: 0 8px 30px rgba(59, 130, 246, 0.45);
}

.btn--ghost {
	background: transparent;
	color: var(--color-text);
	border: 1px solid var(--color-border);
}

.btn--ghost:hover {
	border-color: rgba(255, 255, 255, 0.2);
	color: var(--color-text);
	background: rgba(255, 255, 255, 0.04);
}

.btn--sm {
	padding: 0.625rem 1.125rem;
	font-size: 0.875rem;
}

/* Header */
.site-header {
	position: sticky;
	top: 0;
	z-index: 100;
	background: rgba(8, 11, 18, 0.85);
	backdrop-filter: blur(12px);
	border-bottom: 1px solid var(--color-border);
}

.header-inner {
	display: flex;
	align-items: center;
	justify-content: space-between;
	height: var(--header-height);
	gap: 1.5rem;
}

.site-brand {
	display: flex;
	align-items: center;
	gap: 0.75rem;
	color: var(--color-text);
	font-weight: 600;
}

.site-brand:hover { color: var(--color-text); }

.site-brand__mark {
	display: grid;
	place-items: center;
	width: 40px;
	height: 40px;
	border-radius: 10px;
	background: var(--gradient);
	font-size: 0.875rem;
	font-weight: 700;
}

.site-brand__logo img {
	width: 40px;
	height: 40px;
	border-radius: 10px;
	object-fit: cover;
}

.site-nav { flex: 1; display: flex; justify-content: center; }

.header-actions {
	display: flex;
	align-items: center;
	gap: 0.75rem;
	flex-shrink: 0;
}

.lang-switcher {
	display: flex;
	align-items: center;
	gap: 0.125rem;
	padding: 0.2rem;
	border: 1px solid var(--color-border);
	border-radius: 999px;
	background: rgba(255, 255, 255, 0.03);
}

.lang-switcher__link {
	padding: 0.35rem 0.65rem;
	border-radius: 999px;
	font-size: 0.75rem;
	font-weight: 600;
	letter-spacing: 0.04em;
	color: var(--color-text-muted);
	line-height: 1;
}

.lang-switcher__link:hover {
	color: var(--color-text);
}

.lang-switcher__link.is-active {
	background: var(--gradient);
	color: #fff;
}

.nav-menu {
	display: flex;
	gap: 2rem;
	list-style: none;
	margin: 0;
	padding: 0;
}

.nav-menu a {
	color: var(--color-text-muted);
	font-size: 0.9375rem;
	font-weight: 500;
}

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

.nav-toggle {
	display: none;
	flex-direction: column;
	gap: 5px;
	background: none;
	border: none;
	padding: 0.5rem;
	cursor: pointer;
}

.nav-toggle span {
	display: block;
	width: 22px;
	height: 2px;
	background: var(--color-text);
	border-radius: 2px;
	transition: 0.2s;
}

/* Hero */
.hero {
	padding-top: 3rem;
	position: relative;
	overflow: hidden;
}

.hero::before {
	content: '';
	position: absolute;
	top: -20%;
	right: -10%;
	width: 60%;
	height: 80%;
	background: radial-gradient(ellipse, rgba(59, 130, 246, 0.12) 0%, transparent 70%);
	pointer-events: none;
}

.hero__grid {
	display: grid;
	grid-template-columns: 1fr 1fr;
	gap: 4rem;
	align-items: center;
}

.badge {
	display: inline-block;
	padding: 0.375rem 0.875rem;
	border-radius: 999px;
	background: rgba(59, 130, 246, 0.15);
	border: 1px solid rgba(59, 130, 246, 0.3);
	color: #60a5fa;
	font-size: 0.75rem;
	font-weight: 600;
	letter-spacing: 0.08em;
	margin-bottom: 1.25rem;
}

.hero__title {
	font-size: clamp(2.25rem, 4vw, 3.25rem);
	font-weight: 700;
	line-height: 1.15;
	margin: 0 0 1.25rem;
	letter-spacing: -0.02em;
}

.hero__text {
	color: var(--color-text-muted);
	font-size: 1.0625rem;
	max-width: 520px;
	margin: 0 0 2rem;
}

.hero__actions {
	display: flex;
	flex-wrap: wrap;
	gap: 1rem;
	margin-bottom: 2rem;
}

.hero__social {
	display: flex;
	flex-wrap: wrap;
	gap: 1.5rem;
}

.hero__social a {
	display: inline-flex;
	align-items: center;
	gap: 0.5rem;
	color: var(--color-text-muted);
	font-size: 0.875rem;
}

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

.hero__image {
	position: relative;
}

.hero__image img {
	border-radius: var(--radius-lg);
	box-shadow: var(--shadow);
	position: relative;
	z-index: 1;
}

.hero__image::after {
	content: '';
	position: absolute;
	inset: 10% -5% -5% 10%;
	background: var(--gradient-soft);
	border-radius: var(--radius-lg);
	z-index: 0;
}

.hero__placeholder {
	aspect-ratio: 4/5;
	border-radius: var(--radius-lg);
	background: var(--color-bg-card);
	border: 1px dashed var(--color-border);
	display: grid;
	place-items: center;
	color: var(--color-text-muted);
	font-size: 0.875rem;
	text-align: center;
	padding: 2rem;
}

/* Services */
.services__grid {
	display: grid;
	grid-template-columns: repeat(4, 1fr);
	gap: 1.25rem;
}

.service-card {
	background: var(--color-bg-card);
	border: 1px solid var(--color-border);
	border-radius: var(--radius);
	padding: 1.75rem;
	transition: border-color 0.2s, transform 0.2s;
}

.service-card:hover {
	border-color: rgba(59, 130, 246, 0.3);
	transform: translateY(-4px);
}

.service-card__icon {
	font-size: 1.5rem;
	margin-bottom: 1rem;
	width: 48px;
	height: 48px;
	display: grid;
	place-items: center;
	background: rgba(59, 130, 246, 0.1);
	border-radius: 10px;
}

.service-card h3 {
	margin: 0 0 0.75rem;
	font-size: 1.0625rem;
}

.service-card p {
	margin: 0;
	color: var(--color-text-muted);
	font-size: 0.9375rem;
}

/* Experience */
.experience-card {
	display: grid;
	grid-template-columns: 1.2fr 0.8fr;
	gap: 3rem;
	background: var(--color-bg-card);
	border: 1px solid var(--color-border);
	border-radius: var(--radius-lg);
	padding: 2.5rem;
}

.experience-card__header {
	display: flex;
	align-items: center;
	gap: 1rem;
	margin-bottom: 1.25rem;
}

.experience-card__logo img {
	width: 48px;
	height: 48px;
	border-radius: 8px;
	object-fit: contain;
}

.experience-card__header strong {
	display: block;
	font-size: 1rem;
}

.experience-card__header span {
	color: var(--color-text-muted);
	font-size: 0.875rem;
}

.experience-card h3 {
	font-size: 1.5rem;
	margin: 0 0 1rem;
}

.experience-card__text {
	color: var(--color-text-muted);
	margin-bottom: 1.5rem;
}

.experience-card__text p { margin: 0 0 1rem; }

.highlight-list {
	list-style: none;
	padding: 0;
	margin: 0 0 1.5rem;
	display: grid;
	grid-template-columns: 1fr 1fr;
	gap: 0.625rem 1.5rem;
}

.highlight-list li {
	display: flex;
	align-items: flex-start;
	gap: 0.5rem;
	color: var(--color-text-muted);
	font-size: 0.9375rem;
}

.highlight-list li::before {
	content: '';
	flex-shrink: 0;
	width: 18px;
	height: 18px;
	margin-top: 2px;
	background: rgba(59, 130, 246, 0.2);
	border-radius: 50%;
	background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='none'%3E%3Cpath d='M3 8l3.5 3.5L13 5' stroke='%233b82f6' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
	background-repeat: no-repeat;
	background-position: center;
}

.experience-card__skills h4 {
	margin: 0 0 1.5rem;
	font-size: 1rem;
}

.skill-bars { display: flex; flex-direction: column; gap: 1.125rem; }

.skill-bar__header {
	display: flex;
	justify-content: space-between;
	font-size: 0.875rem;
	margin-bottom: 0.5rem;
}

.skill-bar__header span:last-child { color: var(--color-text-muted); }

.skill-bar__track {
	height: 6px;
	background: rgba(255, 255, 255, 0.06);
	border-radius: 999px;
	overflow: hidden;
}

.skill-bar__fill {
	height: 100%;
	background: var(--gradient);
	border-radius: 999px;
	transition: width 1s ease;
}

/* Projects */
.projects__grid {
	display: grid;
	grid-template-columns: repeat(auto-fit, minmax(min(100%, 340px), 1fr));
	gap: 1.5rem;
}

.project-card {
	background: var(--color-bg-card);
	border: 1px solid var(--color-border);
	border-radius: var(--radius);
	overflow: hidden;
	transition: transform 0.2s, border-color 0.2s;
}

.project-card:hover {
	transform: translateY(-4px);
	border-color: rgba(59, 130, 246, 0.25);
}

.project-card__image img {
	width: 100%;
	aspect-ratio: 16/10;
	object-fit: cover;
}

.project-card__body { padding: 1.5rem; }

.project-card h2, .project-card h3 {
	margin: 0 0 0.75rem;
	font-size: 1.125rem;
}

.project-card h2 a, .project-card h3 a { color: var(--color-text); }
.project-card h2 a:hover, .project-card h3 a:hover { color: var(--color-accent); }

.project-card p {
	margin: 0 0 1rem;
	color: var(--color-text-muted);
	font-size: 0.9375rem;
}

/* Tags */
.tag-list {
	display: flex;
	flex-wrap: wrap;
	gap: 0.5rem;
}

.tag {
	padding: 0.375rem 0.75rem;
	border-radius: 999px;
	background: rgba(255, 255, 255, 0.05);
	border: 1px solid var(--color-border);
	font-size: 0.8125rem;
	color: var(--color-text-muted);
}

/* Tech & About */
.tech-about__grid {
	display: grid;
	grid-template-columns: 1fr 1fr;
	gap: 4rem;
	align-items: start;
}

.code-block {
	margin-top: 1.5rem;
	background: #0a0e17;
	border: 1px solid var(--color-border);
	border-radius: var(--radius);
	overflow: hidden;
}

.code-block__header {
	display: flex;
	justify-content: space-between;
	align-items: center;
	padding: 0.75rem 1rem;
	background: rgba(255, 255, 255, 0.03);
	border-bottom: 1px solid var(--color-border);
	font-size: 0.8125rem;
	color: var(--color-text-muted);
}

.code-block__copy {
	background: none;
	border: none;
	color: var(--color-text-muted);
	cursor: pointer;
	padding: 0.25rem;
	border-radius: 4px;
}

.code-block__copy:hover { color: var(--color-text); background: rgba(255,255,255,0.05); }

.code-block pre {
	margin: 0;
	padding: 1.25rem;
	overflow-x: auto;
	font-size: 0.8125rem;
	line-height: 1.7;
	color: #a5b4fc;
}

.about__text {
	color: var(--color-text-muted);
	font-size: 1.0625rem;
	margin: 0 0 2rem;
}

.about__highlights {
	display: grid;
	grid-template-columns: repeat(3, 1fr);
	gap: 1.25rem;
}

.about__highlight {
	display: flex;
	gap: 0.875rem;
	align-items: flex-start;
}

.about__highlight-icon {
	font-size: 1.25rem;
	width: 40px;
	height: 40px;
	display: grid;
	place-items: center;
	background: rgba(59, 130, 246, 0.1);
	border-radius: 10px;
	flex-shrink: 0;
}

.about__highlight strong {
	display: block;
	font-size: 0.8125rem;
	color: var(--color-text-muted);
	font-weight: 500;
}

.about__highlight span { font-size: 0.9375rem; }

/* Blog */
.blog__grid {
	display: grid;
	grid-template-columns: repeat(3, 1fr);
	gap: 1.5rem;
}

.blog-card {
	background: var(--color-bg-card);
	border: 1px solid var(--color-border);
	border-radius: var(--radius);
	overflow: hidden;
}

.blog-card__image img {
	width: 100%;
	aspect-ratio: 16/9;
	object-fit: cover;
}

.blog-card__body { padding: 1.5rem; }

.blog-card time {
	font-size: 0.8125rem;
	color: var(--color-text-muted);
}

.blog-card h2, .blog-card h3 {
	margin: 0.5rem 0 0.75rem;
	font-size: 1.125rem;
}

.blog-card h2 a, .blog-card h3 a { color: var(--color-text); }

.blog-card p {
	margin: 0 0 1rem;
	color: var(--color-text-muted);
	font-size: 0.9375rem;
}

.read-more {
	display: inline-flex;
	align-items: center;
	gap: 0.375rem;
	font-size: 0.875rem;
	font-weight: 600;
}

.blog-list__grid {
	display: grid;
	grid-template-columns: 1fr 300px;
	gap: 3rem;
}

.blog-card--list {
	display: grid;
	grid-template-columns: 280px 1fr;
	margin-bottom: 2rem;
}

/* Contact */
.contact__layout {
	display: grid;
	grid-template-columns: minmax(260px, 0.9fr) minmax(0, 1.1fr);
	gap: 3rem;
	align-items: start;
}

.contact__header {
	display: flex;
	align-items: flex-start;
	gap: 1.25rem;
	text-align: left;
}

.contact__icon {
	color: var(--color-accent);
	flex-shrink: 0;
	margin-top: 0.25rem;
}

.contact__header h2 {
	font-size: clamp(1.5rem, 2.5vw, 2rem);
	margin: 0 0 0.75rem;
	line-height: 1.2;
}

.contact__header p {
	color: var(--color-text-muted);
	margin: 0;
	font-size: 1.0625rem;
	line-height: 1.6;
}

.contact-form {
	text-align: left;
	background: var(--color-bg-card);
	border: 1px solid var(--color-border);
	border-radius: var(--radius-lg);
	padding: 2rem;
	width: 100%;
}

.contact-form__grid {
	display: grid;
	grid-template-columns: 1fr 1fr;
	gap: 1.25rem;
}

.contact-form__field--full {
	grid-column: 1 / -1;
}

.contact-form__field {
	margin-bottom: 0;
}

.contact-form__field label {
	display: block;
	font-size: 0.875rem;
	font-weight: 500;
	margin-bottom: 0.5rem;
	color: var(--color-text);
}

.contact-form__field label span {
	color: var(--color-accent);
}

.contact-form__field input,
.contact-form__field textarea {
	width: 100%;
	padding: 0.75rem 1rem;
	border-radius: 10px;
	border: 1px solid var(--color-border);
	background: var(--color-bg-elevated);
	color: var(--color-text);
	font-family: inherit;
	font-size: 0.9375rem;
	transition: border-color 0.2s;
}

.contact-form__field input:focus,
.contact-form__field textarea:focus {
	outline: none;
	border-color: rgba(59, 130, 246, 0.5);
	box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.contact-form__field textarea {
	resize: vertical;
	min-height: 140px;
}

.contact-form__hp {
	position: absolute;
	left: -9999px;
	opacity: 0;
	pointer-events: none;
	height: 0;
	overflow: hidden;
}

.contact-form__captcha {
	margin: 1rem 0 1.5rem;
	display: flex;
	justify-content: center;
}

.contact-form__notice {
	font-size: 0.8125rem;
	color: var(--color-text-muted);
	text-align: center;
	margin: 0 0 1rem;
}

.contact-form__actions {
	display: flex;
	flex-wrap: wrap;
	align-items: center;
	gap: 1.25rem;
	justify-content: flex-start;
}

.contact-form__mailto {
	font-size: 0.875rem;
	color: var(--color-text-muted);
}

.contact-form__mailto:hover {
	color: var(--color-accent);
}

.contact-form__feedback {
	margin-top: 1rem;
	text-align: center;
	font-size: 0.9375rem;
	min-height: 1.25rem;
}

.contact-form__feedback.is-success {
	color: #4ade80;
}

.contact-form__feedback.is-error {
	color: #f87171;
}

@media (max-width: 768px) {
	.contact-form__grid {
		grid-template-columns: 1fr;
	}

	.contact-form {
		padding: 1.5rem;
	}
}

/* Footer */
.footer-bottom {
	display: flex;
	justify-content: space-between;
	align-items: center;
	padding: 1.5rem 0;
	border-top: 1px solid var(--color-border);
}

.footer-bottom p {
	margin: 0;
	color: var(--color-text-muted);
	font-size: 0.875rem;
}

.footer-menu {
	display: flex;
	gap: 1.5rem;
	list-style: none;
	margin: 0;
	padding: 0;
}

.footer-menu a {
	color: var(--color-text-muted);
	font-size: 0.875rem;
}

/* Page / Single */
.page-header h1 { font-size: 2.5rem; margin: 0; }

.single-post__header,
.single-project__header {
	margin-bottom: 2rem;
}

.single-post__header time,
.single-project__header .section-label {
	display: block;
	margin-bottom: 0.75rem;
}

.single-post__image img,
.single-project__image img {
	border-radius: var(--radius);
	margin-top: 1.5rem;
}

.entry-content {
	color: var(--color-text-muted);
	line-height: 1.8;
}

.entry-content h2, .entry-content h3 {
	color: var(--color-text);
}

.entry-content p { margin: 0 0 1.25rem; }

.single-project__links {
	display: flex;
	flex-wrap: wrap;
	gap: 1rem;
	margin-top: 2rem;
}

.pagination {
	margin-top: 2rem;
}

.pagination .nav-links {
	display: flex;
	gap: 0.5rem;
	justify-content: center;
}

.pagination a, .pagination span {
	padding: 0.5rem 0.875rem;
	border-radius: 8px;
	border: 1px solid var(--color-border);
	color: var(--color-text-muted);
}

.pagination .current {
	background: var(--gradient);
	border-color: transparent;
	color: #fff;
}

/* Animations */
.fade-in {
	opacity: 0;
	transform: translateY(20px);
	transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
	opacity: 1;
	transform: translateY(0);
}

/* Responsive */
@media (max-width: 1024px) {
	.services__grid { grid-template-columns: repeat(2, 1fr); }
	.projects__grid, .blog__grid { grid-template-columns: repeat(2, 1fr); }
	.experience-card { grid-template-columns: 1fr; }
	.tech-about__grid { grid-template-columns: 1fr; gap: 3rem; }
	.contact__layout { grid-template-columns: 1fr; gap: 2rem; }
}

@media (max-width: 768px) {
	.header-actions .btn--sm { display: none; }

	.nav-toggle { display: flex; }

	.site-nav .nav-menu {
		display: none;
		position: absolute;
		top: var(--header-height);
		left: 0;
		right: 0;
		flex-direction: column;
		background: var(--color-bg-elevated);
		padding: 1.5rem;
		border-bottom: 1px solid var(--color-border);
		gap: 1rem;
	}

	.site-nav.is-open .nav-menu { display: flex; }

	.hero__grid { grid-template-columns: 1fr; gap: 2rem; }
	.hero__image { order: -1; max-width: 320px; margin-inline: auto; }

	.services__grid { grid-template-columns: 1fr; }
	.projects__grid, .blog__grid { grid-template-columns: 1fr; }
	.highlight-list { grid-template-columns: 1fr; }
	.about__highlights { grid-template-columns: 1fr; }

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

	.blog-list__grid { grid-template-columns: 1fr; }
	.blog-card--list { grid-template-columns: 1fr; }

	.footer-bottom { flex-direction: column; gap: 1rem; text-align: center; }
}