/* ═══════════════════════════════════════════
   DPO-BLOG — Dark Theme (Green / Blue)
   ═══════════════════════════════════════════ */

:root {
	/* Background */
	--bg-primary: #08080f;
	--bg-secondary: #0d0d1a;
	--bg-card: #111122;
	--bg-card-hover: #16162e;
	--bg-nav: rgba(8, 8, 15, 0.92);

	/* Accent Colors */
	--green: #00d68f;
	--green-dim: rgba(0, 214, 143, 0.15);
	--green-glow: rgba(0, 214, 143, 0.08);
	--blue: #3b82f6;
	--blue-dim: rgba(59, 130, 246, 0.15);
	--blue-glow: rgba(59, 130, 246, 0.08);

	/* Gradient */
	--gradient-hero: linear-gradient(135deg, rgba(0, 214, 143, 0.12), rgba(59, 130, 246, 0.12));
	--gradient-accent: linear-gradient(135deg, var(--green), var(--blue));

	/* Text */
	--text-primary: #e8e8f0;
	--text-secondary: #9090a8;
	--text-muted: #505068;

	/* Borders */
	--border-subtle: rgba(255, 255, 255, 0.06);
	--border-card: rgba(255, 255, 255, 0.08);
	--border-accent: rgba(0, 214, 143, 0.3);

	/* Spacing */
	--nav-height: 64px;
	--max-width: 1120px;
	--radius: 12px;
	--radius-lg: 20px;

	/* Typography */
	--font-body: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
	--font-heading: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
	--font-mono: 'JetBrains Mono', 'Fira Code', 'Cascadia Code', monospace;
}

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

html {
	font-size: 16px;
	scroll-behavior: smooth;
}

body {
	font-family: var(--font-body);
	background: var(--bg-primary);
	color: var(--text-primary);
	line-height: 1.7;
	min-height: 100vh;
	overflow-x: hidden;
}

/* Subtle background grid */
body::before {
	content: '';
	position: fixed;
	top: 0; left: 0; right: 0; bottom: 0;
	background-image:
		linear-gradient(rgba(255,255,255,0.02) 1px, transparent 1px),
		linear-gradient(90deg, rgba(255,255,255,0.02) 1px, transparent 1px);
	background-size: 60px 60px;
	pointer-events: none;
	z-index: 0;
}

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

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

/* ═══ NAVIGATION ═══ */
nav {
	position: fixed;
	top: 0; left: 0; right: 0;
	height: var(--nav-height);
	background: var(--bg-nav);
	border-bottom: 1px solid var(--border-subtle);
	backdrop-filter: blur(20px);
	z-index: 100;
	display: flex;
	align-items: center;
	justify-content: center;
}

nav .nav-inner {
	width: 100%;
	max-width: var(--max-width);
	padding: 0 24px;
	display: flex;
	align-items: center;
	justify-content: space-between;
}

nav .logo {
	font-size: 1.25rem;
	font-weight: 700;
	background: var(--gradient-accent);
	-webkit-background-clip: text;
	-webkit-text-fill-color: transparent;
	background-clip: text;
	letter-spacing: -0.5px;
	display: flex;
	align-items: center;
	gap: 8px;
}

nav .logo .logo-icon {
	font-size: 1.5rem;
	-webkit-text-fill-color: initial;
	color: var(--green);
}

nav .nav-links {
	display: flex;
	align-items: center;
	gap: 24px;
	list-style: none;
}

nav .nav-links a {
	color: var(--text-secondary);
	font-size: 0.9rem;
	font-weight: 500;
	transition: color 0.2s;
	padding: 6px 12px;
	border-radius: 8px;
}
nav .nav-links a:hover {
	color: var(--text-primary);
	background: rgba(255,255,255,0.04);
}

/* ═══ MAIN CONTAINER ═══ */
main {
	margin-top: var(--nav-height);
	position: relative;
	z-index: 1;
}

.container {
	max-width: var(--max-width);
	margin: 0 auto;
	padding: 0 24px;
}

/* ═══ HERO SECTION (Latest Post) ═══ */
.hero {
	padding: 60px 0 40px;
	position: relative;
}

.hero::after {
	content: '';
	position: absolute;
	top: 0; left: 50%; transform: translateX(-50%);
	width: 600px; height: 600px;
	background: radial-gradient(ellipse, var(--green-glow) 0%, transparent 70%);
	pointer-events: none;
}

.hero-badge {
	display: inline-flex;
	align-items: center;
	gap: 6px;
	font-size: 0.78rem;
	font-weight: 600;
	color: var(--green);
	background: var(--green-dim);
	padding: 4px 14px;
	border-radius: 100px;
	margin-bottom: 16px;
	text-transform: uppercase;
	letter-spacing: 1px;
	position: relative;
	z-index: 1;
}

.hero-badge::before {
	content: '';
	width: 6px; height: 6px;
	border-radius: 50%;
	background: var(--green);
	animation: pulse-dot 2s ease-in-out infinite;
}

@keyframes pulse-dot {
	0%, 100% { opacity: 1; }
	50% { opacity: 0.3; }
}

.hero-card {
	position: relative;
	z-index: 1;
	background: var(--gradient-hero);
	border: 1px solid var(--border-card);
	border-radius: var(--radius-lg);
	padding: 48px;
	transition: all 0.3s ease;
	cursor: default;
	overflow: hidden;
}

.hero-card::before {
	content: '';
	position: absolute;
	top: 0; left: 0; right: 0; bottom: 0;
	background: linear-gradient(135deg, var(--green-glow) 0%, var(--blue-glow) 100%);
	opacity: 0;
	transition: opacity 0.3s;
}
.hero-card:hover::before {
	opacity: 1;
}

.hero-card > * {
	position: relative;
	z-index: 1;
}

.hero-card .hero-meta {
	display: flex;
	align-items: center;
	gap: 16px;
	margin-bottom: 16px;
	font-size: 0.85rem;
	color: var(--text-secondary);
}

.hero-card .hero-category {
	display: inline-block;
	padding: 2px 10px;
	border-radius: 100px;
	font-size: 0.75rem;
	font-weight: 600;
	background: var(--blue-dim);
	color: var(--blue);
	text-transform: uppercase;
	letter-spacing: 0.5px;
}

.hero-card h1 {
	font-size: 2.2rem;
	font-weight: 800;
	line-height: 1.25;
	margin-bottom: 12px;
	background: var(--gradient-accent);
	-webkit-background-clip: text;
	-webkit-text-fill-color: transparent;
	background-clip: text;
}

.hero-card .hero-excerpt {
	font-size: 1.1rem;
	color: var(--text-secondary);
	line-height: 1.6;
	margin-bottom: 24px;
	max-width: 700px;
}

.hero-card .hero-cta {
	display: inline-flex;
	align-items: center;
	gap: 8px;
	padding: 10px 24px;
	border: 1px solid var(--border-accent);
	border-radius: 100px;
	font-size: 0.9rem;
	font-weight: 600;
	color: var(--green);
	transition: all 0.2s;
}
.hero-card .hero-cta:hover {
	background: var(--green-dim);
	border-color: var(--green);
	gap: 12px;
}

/* ═══ POST GRID ═══ */
.section-header {
	display: flex;
	align-items: center;
	justify-content: space-between;
	margin-bottom: 24px;
	padding-bottom: 12px;
	border-bottom: 1px solid var(--border-subtle);
}

.section-header h2 {
	font-size: 1.3rem;
	font-weight: 700;
	color: var(--text-primary);
	display: flex;
	align-items: center;
	gap: 8px;
}

.section-header h2 .accent-line {
	display: inline-block;
	width: 3px;
	height: 20px;
	border-radius: 2px;
	background: var(--gradient-accent);
}

.post-grid {
	display: grid;
	grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
	gap: 20px;
	margin-bottom: 60px;
}

.post-card {
	background: var(--bg-card);
	border: 1px solid var(--border-card);
	border-radius: var(--radius);
	padding: 28px;
	transition: all 0.25s ease;
	cursor: default;
	display: flex;
	flex-direction: column;
}

.post-card:hover {
	background: var(--bg-card-hover);
	border-color: var(--border-accent);
	transform: translateY(-2px);
	box-shadow: 0 8px 30px rgba(0, 214, 143, 0.06);
}

.post-card .post-meta {
	display: flex;
	align-items: center;
	gap: 12px;
	margin-bottom: 12px;
	font-size: 0.8rem;
	color: var(--text-muted);
}

.post-card .post-category {
	display: inline-block;
	padding: 2px 8px;
	border-radius: 100px;
	font-size: 0.7rem;
	font-weight: 600;
	background: var(--blue-dim);
	color: var(--blue);
	text-transform: uppercase;
	letter-spacing: 0.5px;
}

.post-card h3 {
	font-size: 1.15rem;
	font-weight: 700;
	margin-bottom: 8px;
	line-height: 1.35;
	color: var(--text-primary);
}

.post-card h3 a {
	color: inherit;
}
.post-card h3 a:hover {
	color: var(--green);
}

.post-card .post-excerpt {
	font-size: 0.88rem;
	color: var(--text-secondary);
	line-height: 1.6;
	flex: 1;
	margin-bottom: 16px;
}

.post-card .post-footer {
	display: flex;
	align-items: center;
	justify-content: space-between;
	padding-top: 14px;
	border-top: 1px solid var(--border-subtle);
	font-size: 0.8rem;
	color: var(--text-muted);
}

.post-card .post-tags {
	display: flex;
	flex-wrap: wrap;
	gap: 6px;
	margin-top: 12px;
}

.post-card .post-tag {
	display: inline-block;
	padding: 2px 8px;
	border-radius: 4px;
	font-size: 0.7rem;
	background: rgba(255,255,255,0.04);
	color: var(--text-muted);
}

.post-card .read-more {
	font-size: 0.85rem;
	font-weight: 600;
	color: var(--green);
	display: inline-flex;
	align-items: center;
	gap: 4px;
	transition: gap 0.2s;
}
.post-card .read-more:hover {
	gap: 8px;
}

/* ═══ SINGLE POST ═══ */
.post-single {
	padding: 48px 0 80px;
}

.post-single-header {
	margin-bottom: 40px;
	padding-bottom: 32px;
	border-bottom: 1px solid var(--border-subtle);
}

.post-single-header .back-link {
	display: inline-flex;
	align-items: center;
	gap: 6px;
	font-size: 0.9rem;
	color: var(--text-secondary);
	margin-bottom: 20px;
	transition: color 0.2s;
}
.post-single-header .back-link:hover {
	color: var(--green);
}

.post-single-header h1 {
	font-size: 2.4rem;
	font-weight: 800;
	line-height: 1.2;
	margin-bottom: 16px;
	background: var(--gradient-accent);
	-webkit-background-clip: text;
	-webkit-text-fill-color: transparent;
	background-clip: text;
}

.post-single-header .post-meta {
	display: flex;
	align-items: center;
	flex-wrap: wrap;
	gap: 16px;
	font-size: 0.88rem;
	color: var(--text-secondary);
}

.post-single-header .post-category {
	display: inline-block;
	padding: 3px 12px;
	border-radius: 100px;
	font-size: 0.75rem;
	font-weight: 600;
	background: var(--blue-dim);
	color: var(--blue);
	text-transform: uppercase;
	letter-spacing: 0.5px;
}

/* ═══ POST CONTENT ═══ */
.post-content {
	font-size: 1.05rem;
	line-height: 1.85;
	color: var(--text-primary);
	max-width: 780px;
}

.post-content h2 {
	font-size: 1.6rem;
	font-weight: 700;
	margin: 40px 0 16px;
	color: var(--green);
}

.post-content h3 {
	font-size: 1.25rem;
	font-weight: 600;
	margin: 32px 0 12px;
	color: var(--blue);
}

.post-content p {
	margin-bottom: 20px;
	color: var(--text-primary);
}

.post-content strong {
	color: var(--text-primary);
	font-weight: 700;
}

.post-content code {
	font-family: var(--font-mono);
	font-size: 0.88em;
	background: rgba(255,255,255,0.06);
	padding: 2px 8px;
	border-radius: 4px;
	color: var(--green);
}

.post-content pre {
	background: var(--bg-secondary);
	border: 1px solid var(--border-card);
	border-radius: var(--radius);
	padding: 20px;
	margin: 24px 0;
	overflow-x: auto;
	font-size: 0.88rem;
	line-height: 1.6;
}

.post-content pre code {
	background: none;
	padding: 0;
	color: var(--text-primary);
	font-size: inherit;
}

.post-content blockquote {
	border-left: 3px solid var(--green);
	padding: 16px 20px;
	margin: 24px 0;
	background: var(--green-dim);
	border-radius: 0 var(--radius) var(--radius) 0;
	color: var(--text-secondary);
	font-style: italic;
}

.post-content ul,
.post-content ol {
	margin: 16px 0 20px 24px;
}
.post-content li {
	margin-bottom: 8px;
}

.post-content a {
	color: var(--blue);
	text-decoration: underline;
	text-underline-offset: 2px;
}
.post-content a:hover {
	color: var(--green);
}

.post-content hr {
	border: none;
	border-top: 1px solid var(--border-subtle);
	margin: 40px 0;
}

.post-content img {
	border-radius: var(--radius);
	border: 1px solid var(--border-card);
	margin: 24px 0;
}

/* ═══ TAGS FOOTER ═══ */
.post-tags-footer {
	margin-top: 48px;
	padding-top: 24px;
	border-top: 1px solid var(--border-subtle);
	display: flex;
	align-items: center;
	gap: 8px;
	flex-wrap: wrap;
}

.post-tags-footer .tag-label {
	font-size: 0.85rem;
	color: var(--text-muted);
	font-weight: 600;
}

.post-tag-link {
	display: inline-block;
	padding: 4px 12px;
	border-radius: 100px;
	font-size: 0.8rem;
	background: rgba(255,255,255,0.04);
	border: 1px solid var(--border-subtle);
	color: var(--text-secondary);
	transition: all 0.2s;
}
.post-tag-link:hover {
	background: var(--green-dim);
	border-color: var(--border-accent);
	color: var(--green);
}

/* ═══ EMPTY STATE ═══ */
.empty-state {
	text-align: center;
	padding: 80px 24px;
	color: var(--text-muted);
}

.empty-state .empty-icon {
	font-size: 3rem;
	margin-bottom: 16px;
	opacity: 0.5;
}

.empty-state h2 {
	font-size: 1.3rem;
	margin-bottom: 8px;
	color: var(--text-secondary);
}

/* ═══ FOOTER ═══ */
footer {
	text-align: center;
	padding: 40px 24px;
	color: var(--text-muted);
	font-size: 0.85rem;
	border-top: 1px solid var(--border-subtle);
	position: relative;
	z-index: 1;
}

footer .footer-accent {
	color: var(--green);
}

/* ═══ 404 ═══ */
.page-404 {
	text-align: center;
	padding: 120px 24px;
}

.page-404 h1 {
	font-size: 4rem;
	font-weight: 800;
	background: var(--gradient-accent);
	-webkit-background-clip: text;
	-webkit-text-fill-color: transparent;
	background-clip: text;
	margin-bottom: 8px;
}

.page-404 p {
	color: var(--text-secondary);
	margin-bottom: 24px;
}

/* ═══ ADMIN FORM ═══ */
.admin-page {
	padding: 48px 0;
}

.admin-page h1 {
	font-size: 1.6rem;
	font-weight: 700;
	margin-bottom: 32px;
	color: var(--green);
}

.admin-form {
	max-width: 800px;
}

.form-group {
	margin-bottom: 20px;
}

.form-group label {
	display: block;
	font-size: 0.88rem;
	font-weight: 600;
	color: var(--text-secondary);
	margin-bottom: 6px;
}

.form-group input[type="text"],
.form-group textarea,
.form-group select {
	width: 100%;
	padding: 10px 14px;
	background: var(--bg-secondary);
	border: 1px solid var(--border-card);
	border-radius: 8px;
	color: var(--text-primary);
	font-family: var(--font-body);
	font-size: 0.95rem;
	transition: border-color 0.2s;
}

.form-group input[type="text"]:focus,
.form-group textarea:focus,
.form-group select:focus {
	outline: none;
	border-color: var(--green);
	box-shadow: 0 0 0 3px var(--green-dim);
}

.form-group textarea {
	min-height: 400px;
	font-family: var(--font-mono);
	font-size: 0.88rem;
	line-height: 1.6;
	resize: vertical;
}

.form-group .help-text {
	font-size: 0.8rem;
	color: var(--text-muted);
	margin-top: 4px;
}

.form-actions {
	display: flex;
	gap: 12px;
	margin-top: 24px;
}

.btn {
	padding: 10px 24px;
	border-radius: 8px;
	font-size: 0.9rem;
	font-weight: 600;
	border: none;
	cursor: default;
	transition: all 0.2s;
	display: inline-flex;
	align-items: center;
	gap: 6px;
}

.btn-primary {
	background: var(--gradient-accent);
	color: white;
}

.btn-primary:hover {
	opacity: 0.9;
	transform: translateY(-1px);
}

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

.btn-secondary:hover {
	border-color: var(--text-muted);
	color: var(--text-primary);
}

/* ═══ RESPONSIVE ═══ */
@media (max-width: 768px) {
	.hero-card {
		padding: 28px;
	}
	.hero-card h1 {
		font-size: 1.6rem;
	}
	.post-grid {
		grid-template-columns: 1fr;
	}
	.post-single-header h1 {
		font-size: 1.6rem;
	}
	.post-content {
		font-size: 0.95rem;
	}
	nav .nav-links {
		gap: 8px;
	}
	nav .nav-links a {
		font-size: 0.8rem;
		padding: 6px 8px;
	}
}

/* ═══ SCROLLBAR ═══ */
::-webkit-scrollbar {
	width: 8px;
}
::-webkit-scrollbar-track {
	background: var(--bg-primary);
}
::-webkit-scrollbar-thumb {
	background: var(--border-card);
	border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
	background: var(--text-muted);
}

/* ═══ SELECTION ═══ */
::selection {
	background: var(--green-dim);
	color: var(--green);
}

/* ═══ MOBILE NAV TOGGLE ═══ */
.nav-toggle {
	display: none;
	background: none;
	border: 1px solid var(--border-card);
	border-radius: 8px;
	color: var(--text-primary);
	font-size: 1.4rem;
	padding: 6px 12px;
	cursor: default;
	line-height: 1;
	transition: all 0.2s;
}
.nav-toggle:hover {
	border-color: var(--green);
	color: var(--green);
}

@media (max-width: 768px) {
	nav {
		z-index: 999;
	}
	.nav-toggle {
		display: block;
	}
	nav .nav-links {
		position: fixed;
		top: var(--nav-height);
		left: 0;
		right: 0;
		flex-direction: column;
		background: var(--bg-nav);
		border-bottom: 1px solid var(--border-subtle);
		backdrop-filter: blur(20px);
		padding: 12px 24px;
		gap: 0;
		transform: translateY(-120%);
		opacity: 0;
		transition: transform 0.3s ease, opacity 0.3s ease;
		pointer-events: none;
	}
	nav .nav-links.open {
		transform: translateY(0);
		opacity: 1;
		pointer-events: all;
	}
	nav .nav-links li {
		width: 100%;
	}
	nav .nav-links a {
		display: block;
		padding: 14px 12px !important;
		font-size: 1rem !important;
		border-bottom: 1px solid var(--border-subtle);
		width: 100%;
	}
	nav .nav-links li:last-child a {
		border-bottom: none;
	}
}

/* Mobile nav overlay */
.nav-overlay {
	display: none;
	position: fixed;
	top: var(--nav-height);
	left: 0;
	right: 0;
	bottom: 0;
	background: rgba(0,0,0,0.4);
	z-index: 998;
}
.nav-overlay.visible {
	display: block;
}