:root {
	--bg-primary: #0c0e15;
	--bg-secondary: #121826;
	--bg-tertiary: #1a2236;
	--accent-primary: #4a8cff;
	--accent-secondary: #8a5cf6;
	--text-primary: #e6f1ff;
	--text-secondary: #a0b3c9;
	--text-tertiary: #6c7d94;
	
	--glass-effect: rgba(30, 41, 59, 0.65);
	--glass-border: rgba(99, 102, 241, 0.15);
	--shadow-primary: rgba(2, 6, 23, 0.7);
	
	--button-primary: #4a8cff;
	--button-hover: #3a7cff;
	--button-danger: #ff5c7c;
	--button-danger-hover: #ff3a60;
	--button-disabled: #334155;
	
	/* Canvas */
	--canvas-bg: #000;
	--canvas-border: rgba(99, 102, 241, 0.25);
	
	/* Viridis color map */
	--viridis-1: #440154;
	--viridis-2: #482475;
	--viridis-3: #414487;
	--viridis-4: #35608D;
	--viridis-5: #2A788E;
	--viridis-6: #21908D;
	--viridis-7: #22A884;
	--viridis-8: #42BE71;
	--viridis-9: #7AD151;
	--viridis-10: #BBDF27;
	--viridis-11: #FDE725;
}

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

body {
	font-family: 'SF Pro Display', 'Segoe UI', system-ui, -apple-system, sans-serif;
	background: var(--bg-primary);
	color: var(--text-primary);
	line-height: 1.6;
	background-image: 
		radial-gradient(circle at 10% 20%, rgba(25, 39, 70, 0.3) 0%, transparent 25%),
		radial-gradient(circle at 90% 80%, rgba(74, 140, 255, 0.15) 0%, transparent 25%);
	min-height: 100vh;
	overflow-x: hidden;
}

header {
	background: var(--glass-effect);
	backdrop-filter: blur(12px);
	color: var(--text-primary);
	padding: 1rem;
	text-align: center;
	box-shadow: 0 2px 15px var(--shadow-primary);
	border-bottom: 1px solid var(--glass-border);
	position: relative;
	z-index: 10;
}

header::before {
	content: '';
	position: absolute;
	top: 0;
	left: 0;
	right: 0;
	height: 1px;
	background: linear-gradient(90deg, transparent, var(--accent-primary), transparent);
	box-shadow: 0 0 15px var(--accent-primary);
}

.main-container {
	display: flex;
	padding: 20px;
	gap: 20px;
	max-width: 1800px;
	margin: 0 auto;
}

.canvas-container {
    flex: 1;
    background: var(--bg-tertiary);
    border-radius: 16px;
    box-shadow: 0 8px 30px var(--shadow-primary);
    padding: 20px;
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
    border: 1px solid var(--glass-border);
}

#leniaCanvas {
    display: block;
}

.canvas-container::before {
	content: '';
	position: absolute;
	top: -2px;
	left: -2px;
	right: -2px;
	bottom: -2px;
	border-radius: 16px;
	background: linear-gradient(45deg, var(--viridis-1), var(--viridis-5), var(--viridis-9));
	z-index: -1;
}

canvas {
    max-width: 100%;
    max-height: 100%;
    border: 1px solid var(--canvas-border);
    background: var(--canvas-bg);
    border-radius: 8px;
    box-shadow: 0 0 20px rgba(0, 0, 0, 0.5);
    image-rendering: pixelated;
    image-rendering: crisp-edges;
}

.controls-container {
	width: 350px;
	display: flex;
	flex-direction: column;
	gap: 20px;
}

.params-panel, .actions-panel {
	background: var(--glass-effect);
	backdrop-filter: blur(10px);
	border-radius: 16px;
	padding: 25px;
	box-shadow: 0 8px 30px var(--shadow-primary);
	border: 1px solid var(--glass-border);
	position: relative;
	overflow: hidden;
}

.params-panel::before, .actions-panel::before {
	content: '';
	position: absolute;
	top: 0;
	left: 0;
	right: 0;
	height: 1px;
	background: linear-gradient(90deg, transparent, var(--accent-primary), transparent);
	box-shadow: 0 0 10px var(--accent-primary);
}

.params-panel h2, .actions-panel h2 {
	margin-bottom: 20px;
	padding-bottom: 15px;
	border-bottom: 1px solid var(--glass-border);
	color: var(--text-primary);
	font-weight: 600;
	letter-spacing: -0.25px;
}

.remap-controls {
	display: flex;
	flex-direction: column;
	gap: 18px;
}

.remap-controls label {
	display: flex;
	justify-content: space-between;
	align-items: center;
	color: var(--text-secondary);
	font-size: 0.95rem;
}

.remap-controls input[type="range"] {
	width: 70%;
	background: linear-gradient(to right, var(--bg-tertiary), var(--accent-primary));
	border-radius: 10px;
	height: 8px;
	outline: none;
	-webkit-appearance: none;
}

.remap-controls input[type="range"]::-webkit-slider-thumb {
	-webkit-appearance: none;
	width: 20px;
	height: 20px;
	border-radius: 50%;
	background: var(--accent-primary);
	cursor: pointer;
	box-shadow: 0 0 0 2px var(--bg-tertiary), 0 0 10px var(--accent-primary);
	transition: all 0.2s ease;
}

.remap-controls input[type="range"]::-webkit-slider-thumb:hover {
	transform: scale(1.1);
	box-shadow: 0 0 0 2px var(--bg-tertiary), 0 0 15px var(--accent-primary);
}

.buttons {
	display: grid;
	grid-template-columns: repeat(2, 1fr);
	gap: 12px;
	margin-bottom: 20px;
}

button {
	padding: 10px 15px;
	background: var(--button-primary);
	color: white;
	border: none;
	border-radius: 10px;
	cursor: pointer;
	font-weight: 500;
	transition: all 0.3s ease;
	letter-spacing: 0.25px;
	box-shadow: 0 2px 8px rgba(74, 140, 255, 0.2);
	position: relative;
	overflow: hidden;
	z-index: 1;
}

button::before {
	content: '';
	position: absolute;
	top: 0;
	left: 0;
	width: 100%;
	height: 100%;
	background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.15), transparent);
	transform: translateX(-100%);
	transition: transform 0.5s ease;
	z-index: -1;
}

button:hover {
	background: var(--button-hover);
	transform: translateY(-1px);
	box-shadow: 0 4px 12px rgba(74, 140, 255, 0.3);
}

button:hover::before {
	transform: translateX(100%);
}

button:disabled {
	background: var(--button-disabled);
	cursor: not-allowed;
	box-shadow: none;
	transform: none;
}

#resetBtn {
	background: var(--button-danger);
	box-shadow: 0 2px 8px rgba(255, 92, 124, 0.2);
}

#resetBtn:hover {
	background: var(--button-danger-hover);
	box-shadow: 0 4px 12px rgba(255, 58, 96, 0.3);
}

.simulation-type {
	margin-bottom: 20px;
}

.simulation-type select {
	width: 100%;
	padding: 12px 15px;
	border-radius: 12px;
	border: 1px solid var(--glass-border);
	background: var(--bg-tertiary);
	color: var(--text-primary);
	font-size: 1rem;
	transition: all 0.3s ease;
}

.simulation-type select:focus {
	outline: none;
	border-color: var(--accent-primary);
	box-shadow: 0 0 0 2px rgba(74, 140, 255, 0.25);
}

.status {
	background: var(--bg-tertiary);
	padding: 20px;
	border-radius: 12px;
	border: 1px solid var(--glass-border);
	font-size: 0.9rem;
}

.status div {
	margin-bottom: 12px;
	color: var(--text-secondary);
	display: flex;
	justify-content: space-between;
}

.status div span {
	color: var(--text-primary);
	font-weight: 500;
}

.grid-size-controls, .kernel-controls {
	display: flex;
	flex-direction: column;
	gap: 12px;
	margin-bottom: 18px;
}

.channel-control {
	display: flex;
	gap: 12px;
	align-items: center;
}

.channel-control label {
	display: flex;
	align-items: center;
	gap: 8px;
	color: var(--text-secondary);
	font-size: 0.95rem;
}

.dt-control {
	margin: 18px 0;
}

.channel-buttons {
	display: flex;
	gap: 12px;
	margin-bottom: 15px;
}

.channel-buttons button {
	flex: 1;
	padding: 8px 10px;
	font-size: 0.85em;
	border-radius: 8px;
}

input[type="number"] {
	width: 80px;
	text-align: center;
	padding: 8px 10px;
	border: 1px solid var(--glass-border);
	border-radius: 10px;
	background: var(--bg-tertiary);
	color: var(--text-primary);
	font-size: 0.95rem;
	transition: all 0.2s ease;
}

input[type="number"]:focus {
	border-color: var(--accent-primary);
	box-shadow: 0 0 0 2px rgba(74, 140, 255, 0.25);
	outline: none;
}

/* Style des flèches dans les champs numériques */
input[type="number"]::-webkit-inner-spin-button,
input[type="number"]::-webkit-outer-spin-button {
	-webkit-appearance: none;
	margin: 0;
	position: relative;
}

input[type="number"]::-webkit-inner-spin-button:after,
input[type="number"]::-webkit-outer-spin-button:after {
	content: "▲";
	position: absolute;
	top: 0;
	right: 0;
	bottom: 50%;
	width: 16px;
	background: var(--bg-secondary);
	color: var(--text-secondary);
	text-align: center;
	font-size: 8px;
	line-height: 16px;
	border-left: 1px solid var(--glass-border);
	cursor: pointer;
}

input[type="number"]::-webkit-outer-spin-button:after {
	content: "▼";
	top: 50%;
	bottom: 0;
}

.fraction-input {
	width: 80px;
	text-align: center;
	padding: 8px 10px;
	border: 1px solid var(--glass-border);
	border-radius: 10px;
	background: var(--bg-tertiary);
	color: var(--text-primary);
}

.bs-channel {
	display: flex;
	flex-wrap: wrap;
	gap: 8px;
	margin-top: 8px;
}

/* Footer */
footer {
	background: var(--glass-effect);
	backdrop-filter: blur(10px);
	color: var(--text-secondary);
	padding: 1rem;
	text-align: center;
	border-top: 1px solid var(--glass-border);
	box-shadow: 0 -2px 10px var(--shadow-primary);
	font-size: 0.9rem;
	margin-top: auto;
}

footer p {
	max-width: 1200px;
	margin: 0 auto;
	padding: 0 20px;
}

footer a {
	color: var(--accent-primary);
	text-decoration: none;
	transition: color 0.3s ease;
}

footer a:hover {
	color: var(--viridis-9);
	text-decoration: underline;
}

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

body::after {
	content: '';
	position: fixed;
	top: 0;
	left: 0;
	width: 100%;
	height: 100%;
	background: 
		radial-gradient(circle at 20% 30%, rgba(138, 92, 246, 0.1) 0%, transparent 40%),
		radial-gradient(circle at 80% 70%, rgba(74, 140, 255, 0.1) 0%, transparent 40%);
	pointer-events: none;
	z-index: -1;
}

/* Responsive */
@media (min-width: 1201px) {
	.main-container,
	.theory-section	{
		flex-direction: row;
	}
	
	.controls-container {
		flex-direction: column;
	}
}

@media (max-width: 1200px) {
	.main-container,
	.theory-section {
		flex-direction: column;
	}
	
    /* .canvas-container {
        height: auto;
        min-height: 50vh;
    } */
	
	.controls-container {
		width: 100%;
		flex-direction: row;
		flex-wrap: wrap;
	}
	
	.params-panel, .actions-panel {
		flex: 1;
		min-width: 300px;
	}
}

@media (max-width: 900px) {
	.main-container,
	.theory-section {
		padding: 15px;
		gap: 15px;
	}
	
	.controls-container {
		flex-direction: column;
	}
	
	.params-panel, .actions-panel {
		width: 100%;
		min-width: unset;
	}
	
    /* .canvas-container {
        height: 50vh;
    } */
}

@media (max-width: 600px) {
	header {
		padding: 0.8rem;
	}
	
	.main-container,
	.theory-section {
		padding: 10px;
		gap: 10px;
	}
	
	/* .canvas-container {
		height: 50vh;
	} */
	
	.params-panel, .actions-panel {
		padding: 15px;
	}
	
	.remap-controls label {
		flex-direction: column;
		align-items: flex-start;
		gap: 8px;
	}
	
	.remap-controls input[type="range"] {
		width: 100%;
	}
	
	.buttons {
		grid-template-columns: 1fr;
	}
	
	.channel-buttons {
		flex-direction: column;
	}
	
	.channel-control {
		flex-direction: column;
		align-items: flex-start;
	}
	
	input[type="number"] {
		width: 100%;
	}
	
	footer {
		padding: 0.8rem;
		font-size: 0.8rem;
	}
}

@media (max-width: 400px) {
	header h1 {
		font-size: 1.5rem;
	}
	
	/* .canvas-container {
		height: 45vh;
	} */
	
	.params-panel h2, .actions-panel h2 {
		font-size: 1.2rem;
	}
	
	.remap-controls label {
		font-size: 0.85rem;
	}
	
	button {
		padding: 8px 10px;
		font-size: 0.9rem;
	}
}

@media (max-width: 600px) and (orientation: portrait) {
	/* .canvas-container {
		height: 50vh;
	} */
}

@media (max-width: 900px) and (orientation: landscape) {
	/* .canvas-container {
		height: 85vh;
	} */
	
	.controls-container {
		flex-direction: row;
	}
}

h1 {
	font-size: 3.5rem;
	text-align: center;
	margin-bottom: 10px;
	text-shadow: 0 2px 10px rgba(0,0,0,0.3);
	background: linear-gradient(to right, var(--viridis-8), var(--viridis-9));
	-webkit-background-clip: text;
	background-clip: text;
	color: transparent;
}

.subtitle {
	font-size: 1.4rem;
	color: var(--text-secondary);
	max-width: 800px;
	margin: 0 auto;
}

.theory-container {
	display: flex;
	flex-direction: column;
	gap: 20px;
	max-width: 1800px;
	margin: 0 auto 60px auto;
	padding: 20px;
}

.theory-section {
	background: var(--bg-secondary);
	border-radius: 16px;
	border: 1px solid var(--glass-border);
	box-shadow: 0 8px 25px var(--shadow-primary);
	color: var(--text-secondary);
	line-height: 1.8;
	padding: 30px;
}

.theory-section h2 {
	color: var(--text-primary);
	margin-bottom: 20px;
	font-size: 2.2rem;
	border-bottom: 2px solid var(--viridis-5);
	padding-bottom: 10px;
}

.theory-section h3 {
	color: var(--text-primary);
	margin-top: 30px;
	margin-bottom: 10px;
	font-size: 1.6rem;
	color: var(--viridis-6);
}

.theory-section h4 {
	color: var(--viridis-5);
	margin-top: 25px;
	margin-bottom: 10px;
	font-size: 1.3rem;
}

.theory-section p {
	margin-bottom: 16px;
	text-align: justify;
}

.theory-section ul {
	list-style-type: disc;
	padding-left: 30px;
	margin-bottom: 20px;
}

.theory-section li {
	margin-bottom: 8px;
}

.theory-section pre {
	background: var(--bg-tertiary);
	color: var(--text-primary);
	padding: 15px;
	border-radius: 10px;
	font-family: monospace;
	overflow-x: auto;
	margin: 15px 0 25px 0;
	font-size: 1rem;
	line-height: 1.5;
	border-left: 4px solid var(--viridis-5);
}

.theory-section code {
	background: var(--bg-tertiary);
	padding: 2px 6px;
	border-radius: 4px;
	font-family: monospace;
	color: var(--viridis-8);
}

.theory-section a {
	color: var(--accent-primary);
	text-decoration: underline dotted;
}

.theory-section a:hover {
	color: var(--viridis-9);
}

.equation-block {
	background: var(--bg-tertiary);
	padding: 20px;
	border-radius: 10px;
	margin: 20px 0;
	border-left: 4px solid var(--viridis-5);
}

.equation-label {
	display: block;
	text-align: center;
	font-style: italic;
	margin-top: 10px;
	color: var(--text-secondary);
}

.parameter-table {
	width: 100%;
	border-collapse: collapse;
	margin: 20px 0;
	background: var(--bg-tertiary);
	border-radius: 10px;
	overflow: hidden;
}

.parameter-table th {
	background: var(--viridis-3);
	color: white;
	text-align: left;
	padding: 12px 15px;
}

.parameter-table td {
	padding: 10px 15px;
	border-bottom: 1px solid var(--glass-border);
}

.parameter-table tr:last-child td {
	border-bottom: none;
}

.parameter-table tr:nth-child(even) {
	background: rgba(255, 255, 255, 0.05);
}

.visual-example {
	display: flex;
	flex-wrap: wrap;
	gap: 20px;
	margin: 25px 0;
}

.example-item {
	flex: 1;
	min-width: 300px;
	background: var(--bg-tertiary);
	border-radius: 10px;
	padding: 15px;
	text-align: center;
}

.example-item img {
	width: 100%;
	height: 200px;
	object-fit: contain;
	margin-bottom: 10px;
	border-radius: 8px;
	background: var(--bg-primary);
	border: 1px solid var(--glass-border);
}

.example-item h4 {
	color: var(--viridis-6);
	margin-top: 0;
}

.citation {
	font-style: italic;
	margin-top: 30px;
	padding-top: 15px;
	border-top: 1px solid var(--glass-border);
	color: var(--text-secondary);
}

.color-bar {
	height: 20px;
	width: 100%;
	background: linear-gradient(to right, var(--viridis-0), var(--viridis-1), var(--viridis-2), var(--viridis-3), var(--viridis-4), var(--viridis-5), var(--viridis-6), var(--viridis-7), var(--viridis-8), var(--viridis-9));
	border-radius: 10px;
	margin: 15px 0;
}

.color-scale {
	display: flex;
	justify-content: space-between;
	margin-top: 5px;
	font-size: 0.8rem;
	color: var(--text-secondary);
}

.diagram-container {
	text-align: center;
	margin: 30px 0;
}

.diagram {
	max-width: 100%;
	height: auto;
	border-radius: 10px;
	background: var(--bg-primary);
	padding: 15px;
	border: 1px solid var(--glass-border);
}

.diagram-caption {
	margin-top: 10px;
	font-style: italic;
	color: var(--text-secondary);
}