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

:root {
	--primary: #0a4d8f;
	--primary-light: #1e6bb8;
	--primary-lighter: #609edd;
	--primary-dark: #063056;
	--accent: #00d4ff;
	--accent-glow: rgba(0, 212, 255, 0.3);
	--dark: #0a0e27;
	--dark-blue: #0f1729;
	--text: #eff3fa;
	--text-muted: #b0c4de; /* #a0b3cc; */
	--card-bg: rgba(15, 23, 41, 0.8);
	--card-border: rgba(30, 107, 184, 0.3);
	--error: #ff6464;
	--backgnd-trans: rgba(10, 14, 39, 0.5);
	--success: #22c55e;
	--box-shadow-dark: rgba(0, 0, 0, 0.5);
}

html {
  height: 100%;
}

body {
	font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
	background: linear-gradient(135deg, var(--dark) 0%, var(--dark-blue) 50%, var(--primary-dark) 100%);
	color: var(--text);
	// padding: 2rem;
	min-height: 100vh;
}

h1 {
	text-align: center;
	margin-bottom: 2rem;
	background: linear-gradient(135deg, var(--primary-light), var(--accent));
	-webkit-background-clip: text;
	-webkit-text-fill-color: transparent;
	background-clip: text;
	font-size: 2.5rem;
}

label {
	display: block;
	margin-bottom: 0.5rem;
	color: var(--text-muted);
	font-weight: 500;
}

input[type="password"],
input[type="number"],
input[type="text"],
textarea {
	width: 100%;
	padding: 1rem;
	background: var(--backgnd-trans);
	border: 1px solid var(--card-border);
	border-radius: 10px;
	color: #e8edf5;
	font-size: 1rem;
	font-family: 'Courier New', monospace;
	resize: vertical;
}

button:focus,
input:focus,
textarea:focus {
	outline: 3px solid var(--accent);
	outline-offset: 2px;
}

textarea {
	min-height: 200px;
}

button {
	padding: 1rem 2rem;
	background: linear-gradient(135deg, var(--primary), var(--primary-light));
	color: var(--text);
	border: 1px solid var(--accent);
	border-radius: 10px;
	font-size: 1rem;
	font-weight: 600;
	cursor: pointer;
	transition: all 0.3s ease;
}

button:hover {
	background: var(--accent);
	color: var(--dark);
	transform: translateY(-2px);
}

button:disabled {
	opacity: 0.5;
	cursor: not-allowed;
	transform: none;
}

button.copied {
	background: var(--success) !important;
	color: #0a0e27 !important;
}

main {
	flex: 1;
}

/* Navigation */
nav {
	position: fixed;
	top: 0;
	width: 100%;
	background: var(--backgnd-trans);
	backdrop-filter: blur(10px);
	-webkit-backdrop-filter: blur(10px);
	z-index: 1000;
	padding: 1rem 0;
	border-bottom: 1px solid var(--card-border);
	transition: all 0.3s ease;
}

nav.scrolled {
	padding: 0.5rem 0;
	box-shadow: 0 4px 20px var(--box-shadow-dark);
}

.nav-container {
	max-width: 1400px;
	margin: 0 auto;
	padding: 0 2rem;
	display: flex;
	justify-content: space-between;
	align-items: center;
}

.nav-logo {
	font-size: 1.5rem;
	font-weight: bold;
	color: var(--accent);
	letter-spacing: 1px;
	margin-right: auto;
}

.nav-logo-image {
	height: 30px;
}

.nav-links {
	display: flex;
	gap: 2rem;
	list-style: none;
}

.nav-links a {
	color: var(--text);
	text-decoration: none;
	font-weight: 500;
	transition: all 0.3s ease;
	position: relative;
	padding: 0.5rem 0;
}

.nav-links a::after {
	content: '';
	position: absolute;
	bottom: 0;
	left: 0;
	width: 0;
	height: 2px;
	background: var(--accent);
	transition: width 0.3s ease;
}

.nav-links a:hover {
	color: var(--accent);
}

.nav-links a:hover::after,
.nav-links a.active::after {
	width: 100%;
}

.nav-link:focus {
	outline: 3px solid var(--accent);
	outline-offset: 2px;
}

#passwordDisplay {
	font-family: monospace;
	font-size: 1.4em;
	padding: 12px;
	background: var(--backgnd-trans);
	border: 1px solid var(--card-border);
	border-radius: 6px;
	margin-top: 8px;
	word-break: break-all;
	min-height: 1.5em;
	user-select: all; /* Makes it easy to select all for manual copy */
 }

.char-number { color: #FF5722; }    /* Green for digits */
.char-lower  { color: #2196F3; }    /* Blue for lowercase */
.char-upper  { color: #4CAF50; }    /* Orange for uppercase */
.char-special{ color: #9C27B0; }    /* Purple for special chars */

 #passwordDisplay span {
	font-weight: 600;
 }

.theme-toggle {
	position: relative;
	width: 44px;
	height: 44px;
	border: none;
	background: var(--card-bg);
	border: 1px solid var(--card-border);
	border-radius: 50%;
	cursor: pointer;
	display: flex;
	align-items: center;
	justify-content: center;
	transition: all 0.3s ease;
	margin-left: auto;
	padding: 0;
}

.theme-toggle:hover {
	transform: scale(1.05);
	background: rgba(30, 107, 184, 0.1);
}

.theme-icon {
	position: absolute;
	width: 20px;
	height: 20px;
	color: var(--text);
	transition: all 0.3s ease;
}

.theme-icon.moon {
	opacity: 1;
	transform: rotate(0deg) scale(1);
}

.theme-icon.sun {
	opacity: 0;
	transform: rotate(90deg) scale(0);
}


.container {
	max-width: 1200px;
	margin: 0 auto;
	padding-top: 8rem;
	min-height: 100vh; /* Use viewport height */
}

.tool-section {
	background: var(--card-bg);
	border: 1px solid var(--card-border);
	border-radius: 15px;
	padding: 2rem;
	margin-bottom: 2rem;
}

.tool-section h2 {
	color: var(--accent);
	margin-bottom: 1.5rem;
	font-size: 1.8rem;
}

.form-group {
	margin-bottom: 1.5rem;
}

.button-group {
	display: flex;
	gap: 1rem;
	flex-wrap: wrap;
}

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

.btn-secondary:hover {
	background: var(--accent-glow);
}

.output {
	background: var(--backgnd-trans);
	border: 1px solid var(--accent-glow);
	border-radius: 10px;
	padding: 1rem;
	margin-top: 1rem;
	word-wrap: break-word;
	font-family: 'Courier New', monospace;
	font-size: 0.9rem;
	max-height: 400px;
	overflow-y: auto;
}

.info {
	background: rgba(0, 212, 255, 0.1);
	border: 1px solid var(--accent-glow);
	border-radius: 10px;
	padding: 1rem;
	margin-bottom: 1.5rem;
	color: var(--text-muted);
	font-size: 0.9rem;
}

.info strong {
	color: var(--accent);
}

.success {
	color: var(--success);
}

.error {
	color: var(--error);
}

.stats {
	display: grid;
	grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
	gap: 1rem;
	margin-top: 1rem;
}

.stat-card {
	background: var(--backgnd-trans);
	border: 1px solid var(--card-border);
	border-radius: 10px;
	padding: 1rem;
	text-align: center;
}

.stat-label {
	color: var(--text-muted);
	font-size: 0.85rem;
	margin-bottom: 0.5rem;
}

.stat-value {
	color: var(--accent);
	font-size: 1.5rem;
	font-weight: bold;
}

.loading {
	color: var(--accent);
	font-style: italic;
}

footer {
	background: var(--dark-blue);
	border-top: 1px solid var(--card-border);
	padding: 3rem 2rem 2rem;
	margin-top: 4rem;
}

.footer-content {
	max-width: 1400px;
	margin: 0 auto;
	display: grid;
	grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
	gap: 3rem;
	margin-bottom: 2rem;
}

.footer-bottom {
	margin: 0 auto;
	padding-top: 2rem;
	border-top: 1px solid var(--card-border);
	display: flex;
	justify-content: space-between;
	align-items: center;
	flex-wrap: wrap;
	gap: 1rem;
}

.footer-bottom p {
	color: var(--text-muted);
	font-size: 0.9rem;
}

.footer-bottom a {
	color: var(--accent);
	text-decoration: none;
	font-weight: 600;
	transition: all 0.3s ease;
}

.footer-bottom a:hover {
	color: var(--primary-light);
	text-decoration: underline;
}

.visually-hidden {
	position: absolute;
	width: 1px;
	height: 1px;
	padding: 0;
	margin: -1px;
	overflow: hidden;
	clip: rect(0, 0, 0, 0);
	white-space: nowrap;
	border: 0;
}

.home-links {
	list-style: none;
	gap: 20px;
	display: grid;
	grid-template-columns: repeat(3, 1fr);
}

.home-links a {
	color: var(--text);
	text-decoration: none;
	font-weight: 500;
	transition: all 0.3s ease;
	position: relative;
}

.home-links a::after {
	content: '';
	position: absolute;
	bottom: 0;
	left: 0;
	width: 0;
	height: 2px;
	background: var(--accent);
	transition: width 0.3s ease;
}

.home-links a:hover {
	color: var(--accent);
}

.home-links a:hover::after,
.home-links a.active::after {
	width: 100%;
}

.home-link:focus {
	outline: 3px solid var(--accent);
	outline-offset: 2px;
}