/* ==========================================================================
   Imtiyaj Prof — Main Theme Stylesheet (site chrome)
   Styles the header, navigation, footer, general content and responsive
   behaviour. The portfolio-specific design lives in portfolio.css.
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. Design tokens (shared with portfolio.css so the theme toggle is global)
   -------------------------------------------------------------------------- */
:root {
	--font-primary: 'Inter', system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
	--font-mono: 'JetBrains Mono', 'Fira Code', monospace;

	--color-primary: #6366f1;
	--color-primary-dark: #4f46e5;
	--color-accent: #06b6d4;

	--bg-body: #f8fafc;
	--bg-section: #f1f5f9;
	--bg-card: #ffffff;
	--bg-header: rgba(255, 255, 255, 0.85);
	--text-primary: #0f172a;
	--text-secondary: #475569;
	--text-muted: #94a3b8;
	--border-color: #e2e8f0;
	--shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
	--shadow-md: 0 4px 20px rgba(0, 0, 0, 0.08);
	--gradient-primary: linear-gradient(135deg, #6366f1 0%, #06b6d4 100%);

	--header-height: 72px;
	--container-max: 1200px;
	--radius: 12px;
	--transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

[data-theme="dark"] {
	--bg-body: #0f172a;
	--bg-section: #1e293b;
	--bg-card: #1e293b;
	--bg-header: rgba(15, 23, 42, 0.9);
	--text-primary: #f1f5f9;
	--text-secondary: #cbd5e1;
	--text-muted: #64748b;
	--border-color: #334155;
	--shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.3);
	--shadow-md: 0 4px 20px rgba(0, 0, 0, 0.4);
}

/* --------------------------------------------------------------------------
   2. Base
   -------------------------------------------------------------------------- */
*,
*::before,
*::after {
	box-sizing: border-box;
}

html {
	scroll-behavior: smooth;
	scroll-padding-top: var(--header-height);
}

body {
	margin: 0;
	font-family: var(--font-primary);
	font-size: 1rem;
	line-height: 1.7;
	color: var(--text-primary);
	background-color: var(--bg-body);
	padding-top: var(--header-height);
	transition: background-color var(--transition), color var(--transition);
}

a {
	color: var(--color-primary);
	text-decoration: none;
	transition: color var(--transition);
}

a:hover {
	color: var(--color-primary-dark);
}

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

.container {
	width: 100%;
	max-width: var(--container-max);
	margin-inline: auto;
	padding-inline: 20px;
}

/* --------------------------------------------------------------------------
   3. Accessibility helpers
   -------------------------------------------------------------------------- */
.screen-reader-text {
	border: 0;
	clip: rect(1px, 1px, 1px, 1px);
	clip-path: inset(50%);
	height: 1px;
	width: 1px;
	margin: -1px;
	overflow: hidden;
	padding: 0;
	position: absolute !important;
	word-wrap: normal !important;
}

.skip-link {
	position: absolute;
	left: -9999px;
	top: 0;
	z-index: 100000;
	background: var(--color-primary);
	color: #fff;
	padding: 10px 16px;
	border-radius: 0 0 8px 0;
}

.skip-link:focus {
	left: 0;
}

/* --------------------------------------------------------------------------
   4. Site header & navigation
   -------------------------------------------------------------------------- */
.site-header {
	position: fixed;
	inset: 0 0 auto 0;
	height: var(--header-height);
	background: var(--bg-header);
	backdrop-filter: blur(12px);
	-webkit-backdrop-filter: blur(12px);
	border-bottom: 1px solid var(--border-color);
	z-index: 1000;
	transition: box-shadow var(--transition), background var(--transition);
}

.site-header.scrolled {
	box-shadow: var(--shadow-md);
}

.site-header__inner {
	display: flex;
	align-items: center;
	gap: 20px;
	height: 100%;
}

.site-branding {
	display: flex;
	align-items: center;
}

.site-title,
.site-footer__brand {
	display: inline-flex;
	align-items: center;
	gap: 8px;
	font-weight: 800;
	font-size: 1.25rem;
	color: var(--text-primary);
}

.brand-icon {
	font-family: var(--font-mono);
	color: var(--color-primary);
	font-size: 1.1rem;
}

.custom-logo {
	max-height: 48px;
	width: auto;
}

.main-navigation {
	margin-left: auto;
}

.primary-menu,
.footer-menu {
	list-style: none;
	margin: 0;
	padding: 0;
	display: flex;
	align-items: center;
	gap: 6px;
}

.primary-menu .menu-item > a {
	display: inline-block;
	padding: 8px 14px;
	font-weight: 500;
	font-size: 0.95rem;
	color: var(--text-secondary);
	border-radius: 8px;
}

.primary-menu .menu-item > a:hover,
.primary-menu .current-menu-item > a {
	color: var(--color-primary);
}

.menu-item--cta a {
	color: #fff !important;
}

/* Hamburger */
.menu-toggle {
	display: none;
	flex-direction: column;
	justify-content: center;
	gap: 5px;
	width: 42px;
	height: 42px;
	padding: 0;
	background: var(--bg-card);
	border: 1px solid var(--border-color);
	border-radius: 10px;
	cursor: pointer;
}

.menu-toggle__bar {
	display: block;
	width: 20px;
	height: 2px;
	margin-inline: auto;
	background: var(--text-primary);
	transition: transform var(--transition), opacity var(--transition);
}

.main-navigation.toggled .menu-toggle__bar:nth-child(1) {
	transform: translateY(7px) rotate(45deg);
}

.main-navigation.toggled .menu-toggle__bar:nth-child(2) {
	opacity: 0;
}

.main-navigation.toggled .menu-toggle__bar:nth-child(3) {
	transform: translateY(-7px) rotate(-45deg);
}

/* Theme toggle */
.site-header__actions {
	display: flex;
	align-items: center;
}

.theme-toggle {
	width: 42px;
	height: 42px;
	border-radius: 10px;
	border: 1px solid var(--border-color);
	background: var(--bg-card);
	color: var(--text-primary);
	font-size: 1.1rem;
	line-height: 1;
	cursor: pointer;
	display: inline-flex;
	align-items: center;
	justify-content: center;
	transition: background var(--transition), color var(--transition), border-color var(--transition);
}

.theme-toggle:hover {
	background: var(--color-primary);
	color: #fff;
	border-color: var(--color-primary);
}

[data-theme="light"] .theme-toggle__icon--light { display: none; }
[data-theme="dark"] .theme-toggle__icon--dark { display: none; }

/* --------------------------------------------------------------------------
   5. Buttons (site-wide, mirrors the portfolio look on non-portfolio pages)
   -------------------------------------------------------------------------- */
.btn {
	display: inline-flex;
	align-items: center;
	gap: 8px;
	padding: 10px 22px;
	font-weight: 600;
	border-radius: 10px;
	border: 1px solid transparent;
	cursor: pointer;
	transition: transform var(--transition), box-shadow var(--transition), background var(--transition);
}

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

.btn-primary:hover {
	background: var(--color-primary-dark);
	color: #fff;
	transform: translateY(-2px);
	box-shadow: 0 6px 20px rgba(99, 102, 241, 0.35);
}

.btn-sm {
	padding: 7px 16px;
	font-size: 0.875rem;
}

/* --------------------------------------------------------------------------
   6. General content (blog, single, page, archive, 404)
   -------------------------------------------------------------------------- */
.site-main {
	min-height: 50vh;
}

.container.site-main,
main.site-main.container {
	padding-block: 60px;
}

.page-header {
	margin-bottom: 32px;
}

.page-title,
.entry-title {
	color: var(--text-primary);
	line-height: 1.2;
}

.entry-title a {
	color: inherit;
}

.entry-title a:hover {
	color: var(--color-primary);
}

.entry-meta,
.entry-footer {
	font-size: 0.875rem;
	color: var(--text-muted);
	display: flex;
	flex-wrap: wrap;
	gap: 16px;
	margin-top: 8px;
}

.entry-content,
.entry-summary {
	color: var(--text-secondary);
}

.entry-thumbnail {
	margin: 24px 0;
	border-radius: var(--radius);
	overflow: hidden;
}

.posts-list {
	display: grid;
	grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
	gap: 28px;
}

.post-card {
	background: var(--bg-card);
	border: 1px solid var(--border-color);
	border-radius: var(--radius);
	overflow: hidden;
	box-shadow: var(--shadow-sm);
	transition: transform var(--transition), box-shadow var(--transition);
}

.post-card:hover {
	transform: translateY(-4px);
	box-shadow: var(--shadow-md);
}

.post-card__thumb img {
	width: 100%;
	height: 200px;
	object-fit: cover;
	display: block;
}

.post-card__body {
	padding: 24px;
}

.read-more {
	display: inline-block;
	margin-top: 12px;
	font-weight: 600;
}

/* Pagination */
.pagination {
	display: flex;
	gap: 8px;
	flex-wrap: wrap;
	margin-top: 40px;
}

.pagination .page-numbers {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	min-width: 40px;
	height: 40px;
	padding: 0 10px;
	border: 1px solid var(--border-color);
	border-radius: 8px;
	background: var(--bg-card);
	color: var(--text-secondary);
}

.pagination .page-numbers.current,
.pagination .page-numbers:hover {
	background: var(--color-primary);
	color: #fff;
	border-color: var(--color-primary);
}

/* Search form */
.search-form {
	display: flex;
	gap: 8px;
	max-width: 420px;
	margin: 20px 0;
}

.search-form .search-field {
	flex: 1;
	padding: 10px 14px;
	border: 1px solid var(--border-color);
	border-radius: 8px;
	background: var(--bg-card);
	color: var(--text-primary);
}

.search-form .search-submit {
	padding: 10px 18px;
	border: none;
	border-radius: 8px;
	background: var(--color-primary);
	color: #fff;
	font-weight: 600;
	cursor: pointer;
}

/* Posts navigation */
.post-navigation {
	margin: 40px 0;
	display: flex;
	justify-content: space-between;
	gap: 20px;
}

.post-navigation .nav-subtitle {
	display: block;
	font-size: 0.75rem;
	text-transform: uppercase;
	letter-spacing: 1px;
	color: var(--text-muted);
}

/* --------------------------------------------------------------------------
   7. Site footer
   -------------------------------------------------------------------------- */
.site-footer {
	background: var(--bg-card);
	border-top: 1px solid var(--border-color);
	padding: 48px 0 32px;
	margin-top: 60px;
}

.site-footer__widgets {
	display: grid;
	grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
	gap: 32px;
	margin-bottom: 32px;
}

.site-footer__bar {
	display: flex;
	align-items: center;
	justify-content: space-between;
	flex-wrap: wrap;
	gap: 16px;
	padding-top: 24px;
	border-top: 1px solid var(--border-color);
}

.site-footer__brand-col {
	flex: 1 1 200px;
}

.site-footer__tagline {
	margin: 4px 0 0;
	font-size: 0.9rem;
	color: var(--text-muted);
}

.site-footer__social {
	display: flex;
	gap: 12px;
}

.site-footer__social-link {
	width: 44px;
	height: 44px;
	border-radius: 10px;
	border: 1px solid var(--border-color);
	display: inline-flex;
	align-items: center;
	justify-content: center;
	color: var(--text-secondary);
	background: var(--bg-card);
	transition: transform var(--transition), background var(--transition), color var(--transition), border-color var(--transition);
}

.site-footer__social-link:hover {
	background: var(--color-primary);
	color: #fff;
	border-color: var(--color-primary);
	transform: translateY(-3px);
}

.footer-menu {
	flex-basis: 100%;
	justify-content: center;
	order: 5;
}

.site-footer__copy {
	margin: 0;
	flex: 1 1 200px;
	font-size: 0.9rem;
	color: var(--text-muted);
	text-align: right;
}

.widget-title {
	color: var(--text-primary);
	margin-bottom: 12px;
}

/* --------------------------------------------------------------------------
   8. Scroll-to-top button
   -------------------------------------------------------------------------- */
.scroll-top-btn {
	position: fixed;
	bottom: 30px;
	right: 30px;
	width: 48px;
	height: 48px;
	border-radius: 12px;
	background: var(--color-primary);
	color: #fff;
	border: none;
	font-size: 1.2rem;
	display: flex;
	align-items: center;
	justify-content: center;
	cursor: pointer;
	opacity: 0;
	visibility: hidden;
	transform: translateY(20px);
	transition: all var(--transition);
	z-index: 999;
	box-shadow: 0 4px 15px rgba(99, 102, 241, 0.4);
}

.scroll-top-btn.visible {
	opacity: 1;
	visibility: visible;
	transform: translateY(0);
}

.scroll-top-btn:hover {
	background: var(--color-primary-dark);
	transform: translateY(-4px);
}

/* --------------------------------------------------------------------------
   9. Responsive navigation
   -------------------------------------------------------------------------- */
@media (max-width: 991.98px) {
	.menu-toggle {
		display: flex;
		order: 3;
	}

	.main-navigation {
		margin-left: auto;
		order: 2;
	}

	.primary-menu {
		display: none;
		position: absolute;
		top: var(--header-height);
		left: 0;
		right: 0;
		flex-direction: column;
		align-items: stretch;
		gap: 0;
		background: var(--bg-card);
		border-bottom: 1px solid var(--border-color);
		box-shadow: var(--shadow-md);
		padding: 12px;
	}

	.main-navigation.toggled .primary-menu {
		display: flex;
	}

	.primary-menu .menu-item > a {
		display: block;
		padding: 12px 14px;
	}

	.menu-item--cta {
		margin-top: 8px;
	}

	.menu-item--cta a {
		justify-content: center;
	}
}

@media (max-width: 575.98px) {
	.scroll-top-btn {
		bottom: 20px;
		right: 20px;
		width: 42px;
		height: 42px;
	}

	.site-footer__bar {
		flex-direction: column;
		text-align: center;
	}
}

/* --------------------------------------------------------------------------
   10. Reduced motion
   -------------------------------------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
	html {
		scroll-behavior: auto;
	}

	*,
	*::before,
	*::after {
		animation-duration: 0.01ms !important;
		animation-iteration-count: 1 !important;
		transition-duration: 0.01ms !important;
	}
}