@import url('https://fonts.googleapis.com/css2?family=Lora:ital,wght@0,400;0,500;0,600;0,700;1,400&family=Roboto:ital,wght@0,300;0,400;0,500;0,700;1,400&display=swap');

:root {
    /* Fonts */
    --font-heading: 'Lora', serif;
    --font-body: 'Roboto', sans-serif;

    /* Animations */
    --transition-speed: 0.3s;
}

/* Light Theme Variables */
body.theme-light {
    --bg-primary: #f3f4f6;       /* Gray-100 */
    --bg-secondary: #e5e7eb;     /* Gray-200 */
    --bg-card: #ffffff;
    --text-primary: #101010;
    --text-secondary: #4b5563;
    --brand-color: #86c232;      /* Gradi Green */
    --brand-hover: #61892f;      /* Gradi Forest Green */
    --brand-text: #ffffff;
    --border-color: rgba(209, 213, 219, 0.5);
    --panel-bg: rgba(255, 255, 255, 0.8);
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
}

/* Dark Theme Variables */
body.theme-dark {
    --bg-primary: #0f172a;       /* Slate-900 */
    --bg-secondary: #1e293b;     /* Slate-800 */
    --bg-card: #1e293b;
    --text-primary: #f9fafb;
    --text-secondary: #9ca3af;
    --brand-color: #86c232;      /* Gradi Green */
    --brand-hover: #a3e635;      /* Brighter Green */
    --brand-text: #101010;
    --border-color: rgba(75, 85, 99, 0.4);
    --panel-bg: rgba(30, 41, 59, 0.8);
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.5), 0 2px 4px -1px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.6), 0 4px 6px -2px rgba(0, 0, 0, 0.4);
}

/* High Contrast Theme Variables */
body.theme-high-contrast {
    --bg-primary: #000000;
    --bg-secondary: #111111;
    --bg-card: #111111;
    --text-primary: #ffffff;
    --text-secondary: #ffff00;   /* High visibility yellow */
    --brand-color: #ffff00;      /* Highly saturated yellow accent */
    --brand-hover: #ffffff;
    --brand-text: #000000;
    --border-color: #ffffff;     /* Solid white borders */
    --panel-bg: rgba(0, 0, 0, 0.95);
    --shadow: none;
    --shadow-lg: none;
}

/* Base Body Styles */
body {
    font-family: var(--font-body);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    transition: background-color var(--transition-speed) ease, color var(--transition-speed) ease;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
}

/* Main Canvas Wrapper */
#canvas-wrapper {
    position: relative;
    line-height: 0;
    cursor: default;
    transition: transform var(--transition-speed) ease;
}

#noiseMapCanvas {
    position: absolute;
    left: 0;
    top: 0;
    pointer-events: none;
}

/* Premium Glassmorphic Controls Panel */
.controls-container {
    background-color: var(--panel-bg);
    backdrop-filter: blur(12px);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow);
    transition: background-color var(--transition-speed) ease, border-color var(--transition-speed) ease;
}

/* Theme Adaptive Styles for standard Tailwind classes */
.card-adaptive {
    background-color: var(--bg-card);
    border-color: var(--border-color);
    box-shadow: var(--shadow-lg);
    transition: background-color var(--transition-speed) ease, border-color var(--transition-speed) ease, box-shadow var(--transition-speed) ease;
}

.text-secondary-adaptive {
    color: var(--text-secondary);
}

.input-adaptive {
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    border-color: var(--border-color);
    transition: background-color var(--transition-speed) ease, color var(--transition-speed) ease;
}

/* Primary Brand Action Button */
.btn-brand {
    background-color: var(--brand-color);
    color: var(--brand-text);
    transition: background-color 0.2s ease, transform 0.1s ease;
}

.btn-brand:hover {
    background-color: var(--brand-hover);
}

.btn-brand:active {
    transform: scale(0.97);
}

/* Spinner Animation */
.loader {
    border: 4px solid var(--bg-secondary);
    border-top: 4px solid var(--brand-color);
    border-radius: 50%;
    width: 50px;
    height: 50px;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Zoom Container adjustments */
.canvas-container-adaptive {
    background-color: var(--bg-secondary);
    border-color: var(--border-color);
}