/* Elegant Forest Fire Simulation - Dark Theme */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Playfair+Display:wght@600;700&display=swap');

html {
    overscroll-behavior-y: none;
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
    text-size-adjust: 100%;
}

body {
    margin: 0;
    padding: 0;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    background: #0d0d0d;
    color: #e8e8e8;
    width: 100%;
    overflow-x: hidden;
}

#sim-wrapper {
    max-width: 100%;
    width: 100%;
    margin: 0;
    padding: 1.5em;
    display: grid;
    
    grid-template-columns: 1fr 1fr;
    grid-template-rows: auto auto 1fr;
    grid-template-areas:
        "header header"
        "controls controls" 
        "sim plot1"; 
    gap: 1.5em;
    
    height: 100vh;
    box-sizing: border-box;
    overflow-x: hidden;
}

/* Elegant Typography */
#sim-wrapper h1, #sim-wrapper h2 { 
    text-align: center; 
    color: #f5f5f5; 
    margin: 0; 
    font-weight: 700;
}

#sim-wrapper h1 { 
    grid-area: header; 
    font-family: 'Playfair Display', serif;
    font-size: 2.5em;
    font-weight: 700;
    letter-spacing: -0.5px;
    padding: 0.5em 0 0.3em;
    position: relative;
}

#sim-wrapper h1::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 2px;
    background: linear-gradient(90deg, transparent, #4a7c2c, transparent);
}

/* Refined Canvas Container */
#sim-wrapper .sim-container {
    grid-area: sim;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 1.5em; 
    box-sizing: border-box; 
    background: #1a1a1a;
    border-radius: 12px; 
    border: 1px solid #2a2a2a;
    box-shadow: 
        0 2px 8px rgba(0, 0, 0, 0.4),
        0 8px 24px rgba(0, 0, 0, 0.3);
    transition: all 0.3s ease;
    height: 100%;
    min-height: 0;
}

#sim-wrapper .sim-container:hover {
    box-shadow: 
        0 4px 12px rgba(0, 0, 0, 0.5),
        0 12px 32px rgba(0, 0, 0, 0.4);
    border-color: #3a3a3a;
}

#sim-wrapper #forestCanvas {
    image-rendering: pixelated; 
    border: 1px solid #2a2a2a;
    background-color: #000;
    width: 100%; 
    height: 100%;
    max-width: 100%; 
    max-height: 100%; 
    aspect-ratio: 1 / 1;
    border-radius: 8px;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.6);
}

/* Sophisticated Controls Panel */
#sim-wrapper .controls-container {
    grid-area: controls;
    display: grid; 
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); 
    gap: 1.25em;
    padding: 1.25em 1.5em;
    background: #1a1a1a;
    border-radius: 12px;
    border: 1px solid #2a2a2a;
    box-shadow: 
        0 2px 8px rgba(0, 0, 0, 0.4),
        0 8px 24px rgba(0, 0, 0, 0.3);
    box-sizing: border-box;
    max-height: 140px;
}

#sim-wrapper .control-group {
    display: flex;
    flex-direction: column;
    gap: 0.6em;
}

#sim-wrapper .control-group label {
    font-weight: 500;
    font-size: 0.85em;
    color: #a8a8a8; 
    text-align: left; 
    letter-spacing: 0.2px;
}

#sim-wrapper .control-group label span {
    color: #6fb346;
    font-weight: 600;
}

/* Refined Range Sliders */
#sim-wrapper .control-group input[type="range"] {
    -webkit-appearance: none; 
    appearance: none;
    width: 100%;
    height: 4px; 
    background: #2a2a2a;
    outline: none;
    border-radius: 2px;
    transition: all 0.2s ease;
}

#sim-wrapper .control-group input[type="range"]:hover {
    background: #333333;
}

#sim-wrapper .control-group input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 16px; 
    height: 16px; 
    border-radius: 50%;
    background: #6fb346;
    cursor: pointer;
    border: 2px solid #1a1a1a;
    box-shadow: 
        0 2px 4px rgba(0, 0, 0, 0.3),
        0 4px 8px rgba(111, 179, 70, 0.25);
    transition: all 0.2s ease;
}

#sim-wrapper .control-group input[type="range"]::-webkit-slider-thumb:hover {
    transform: scale(1.15);
    box-shadow: 
        0 3px 6px rgba(0, 0, 0, 0.4),
        0 6px 12px rgba(111, 179, 70, 0.35);
}

#sim-wrapper .control-group input[type="range"]::-moz-range-thumb {
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: #6fb346;
    cursor: pointer;
    border: 2px solid #1a1a1a;
    box-shadow: 
        0 2px 4px rgba(0, 0, 0, 0.3),
        0 4px 8px rgba(111, 179, 70, 0.25);
    transition: all 0.2s ease;
}

#sim-wrapper .control-group input[type="range"]::-moz-range-thumb:hover {
    transform: scale(1.15);
    box-shadow: 
        0 3px 6px rgba(0, 0, 0, 0.4),
        0 6px 12px rgba(111, 179, 70, 0.35);
}

/* Clean Input Fields */
#sim-wrapper .control-group input[type="number"], 
#sim-wrapper .control-group input[type="text"] {
    padding: 10px 14px;
    border: 1px solid #2a2a2a;
    background: #0d0d0d;
    color: #e8e8e8;
    border-radius: 8px;
    font-size: 0.95em;
    font-weight: 500;
    transition: all 0.2s ease;
}

#sim-wrapper .control-group input[type="number"]:focus, 
#sim-wrapper .control-group input[type="text"]:focus {
    outline: none;
    border-color: #6fb346;
    background: #1a1a1a;
    box-shadow: 0 0 0 3px rgba(111, 179, 70, 0.15);
}

/* Elegant Action Buttons */
#sim-wrapper .action-buttons {
    display: flex;
    gap: 0.75em;
    margin-top: 0.75em; 
}

#sim-wrapper .action-buttons button {
    flex-grow: 1;
    padding: 11px 20px;
    font-size: 0.95em;
    font-weight: 600;
    border: 1px solid;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s ease;
    letter-spacing: 0.3px;
}

#startButton {
    background: #6fb346;
    color: #0d0d0d;
    border-color: #6fb346;
}

#startButton:hover {
    background: #7ec454;
    border-color: #7ec454;
    box-shadow: 0 4px 12px rgba(111, 179, 70, 0.3);
    transform: translateY(-1px);
}

#startButton.running {
    background: #d64545;
    border-color: #d64545;
    color: #ffffff;
}

#startButton.running:hover {
    background: #e55555;
    border-color: #e55555;
    box-shadow: 0 4px 12px rgba(214, 69, 69, 0.35);
}

#resetButton {
    background: #1a1a1a;
    color: #e8e8e8;
    border-color: #3a3a3a;
}

#resetButton:hover {
    background: #242424;
    border-color: #6fb346;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.4);
    transform: translateY(-1px);
}

#sim-wrapper .action-buttons button:active {
    transform: translateY(0);
}

/* Minimal Toggle */
#sim-wrapper .toggle-switch {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-top: 8px;
}

#sim-wrapper .toggle-switch label {
    font-weight: 500;
    margin: 0;
    color: #a8a8a8;
    font-size: 0.85em;
}

#sim-wrapper .toggle-switch input[type="checkbox"] {
    width: 16px;
    height: 16px;
    cursor: pointer;
    accent-color: #6fb346;
}

/* Hidden Stats */
#sim-wrapper .stats-container {
    display: none;
}

/* Refined Plot Container */
#sim-wrapper .plot-container {
    grid-area: plot1;
    background: #1a1a1a;
    padding: 1.5em;
    border-radius: 12px;
    border: 1px solid #2a2a2a;
    display: flex;
    flex-direction: column;
    box-shadow: 
        0 2px 8px rgba(0, 0, 0, 0.4),
        0 8px 24px rgba(0, 0, 0, 0.3);
    transition: all 0.3s ease;
    height: 100%;
    min-height: 0;
}

#sim-wrapper .plot-container:hover {
    box-shadow: 
        0 4px 12px rgba(0, 0, 0, 0.5),
        0 12px 32px rgba(0, 0, 0, 0.4);
    border-color: #3a3a3a;
}

#plot1-container {
    grid-area: plot1;
}

#sim-wrapper .plot-container canvas {
    flex-grow: 1;
    min-height: 0;
    border-radius: 8px;
}

/* Elegant Scrollbar */
::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

::-webkit-scrollbar-track {
    background: #1a1a1a;
}

::-webkit-scrollbar-thumb {
    background: #3a3a3a;
    border-radius: 5px;
    border: 2px solid #1a1a1a;
}

::-webkit-scrollbar-thumb:hover {
    background: #4a4a4a;
}

/* Tablet and below - force proper layout */
@media (max-width: 1024px) {
    #sim-wrapper {
        grid-template-columns: 1fr !important;
        grid-template-rows: auto auto auto auto !important;
        grid-template-areas: "header" "controls" "sim" "plot1" !important;
        height: auto !important;
        min-height: 100vh;
        padding: 16px;
        gap: 16px;
    }
    
    #sim-wrapper h1 {
        font-size: 28px !important;
        padding: 8px 0 !important;
    }
    
    #sim-wrapper .controls-container {
        max-height: none !important;
        padding: 16px !important;
        grid-template-columns: 1fr !important;
        gap: 12px !important;
    }
    
    #sim-wrapper .control-group {
        width: 100%;
        gap: 8px;
    }
    
    #sim-wrapper .control-group label {
        font-size: 14px !important;
        text-align: left !important;
    }
    
    #sim-wrapper .control-group input[type="number"],
    #sim-wrapper .control-group input[type="text"] {
        font-size: 16px !important;
        width: 100%;
        box-sizing: border-box;
    }
    
    #sim-wrapper .action-buttons {
        flex-direction: row !important;
        gap: 12px;
        width: 100%;
    }
    
    #sim-wrapper .action-buttons button {
        font-size: 16px !important;
        padding: 14px 20px !important;
        flex: 1;
    }
    
    #sim-wrapper .toggle-switch {
        justify-content: flex-start;
    }
    
    #sim-wrapper .toggle-switch label {
        font-size: 14px !important;
    }
    
    #sim-wrapper .sim-container,
    #sim-wrapper .plot-container {
        width: 100% !important;
        max-width: 100% !important;
        height: auto !important;
        min-height: 300px !important;
        aspect-ratio: 1 / 1 !important;
        padding: 16px !important;
        margin: 0 !important;
    }
    
    #sim-wrapper #forestCanvas {
        width: 100% !important;
        height: 100% !important;
        max-width: 100% !important;
        max-height: 100% !important;
    }
}

/* Small screens */
@media (max-width: 640px) {
    #sim-wrapper {
        padding: 12px;
        gap: 12px;
    }
    
    #sim-wrapper h1 {
        font-size: 24px !important;
    }
    
    #sim-wrapper .controls-container {
        padding: 12px !important;
    }
    
    #sim-wrapper .sim-container,
    #sim-wrapper .plot-container {
        min-height: 250px !important;
        padding: 12px !important;
    }
}

/* Subtle fade-in on load */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

#sim-wrapper > * {
    animation: fadeIn 0.6s ease-out backwards;
}

#sim-wrapper > *:nth-child(1) { animation-delay: 0.05s; }
#sim-wrapper > *:nth-child(2) { animation-delay: 0.15s; }
#sim-wrapper > *:nth-child(3) { animation-delay: 0.25s; }
#sim-wrapper > *:nth-child(4) { animation-delay: 0.35s; }