/* Global Reset & Custom Variables */
:root {
    --bg-dark: #07080e;
    --bg-panel: rgba(13, 17, 28, 0.75);
    --border-glass: rgba(255, 255, 255, 0.08);
    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --accent: #a855f7; /* Violet */
    --accent-glow: rgba(168, 85, 247, 0.4);
    --accent-bright: #d8b4fe;
    --success: #10b981;
    --font-heading: 'Outfit', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-sans: 'Space Grotesk', monospace;
    --radius-lg: 16px;
    --radius-md: 10px;
    --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    -webkit-font-smoothing: antialiased;
}

body {
    background-color: var(--bg-dark);
    color: var(--text-primary);
    font-family: var(--font-heading);
    height: 100vh;
    width: 100vw;
    overflow: hidden;
    position: relative;
}

/* Subtle Sci-Fi Grid Overlay */
.grid-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        linear-gradient(rgba(255, 255, 255, 0.015) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.015) 1px, transparent 1px);
    background-size: 40px 40px;
    pointer-events: none;
    z-index: 1;
}

/* Main Container */
.app-container {
    position: relative;
    z-index: 2;
    display: flex;
    flex-direction: column;
    height: 100vh;
    width: 100vw;
    padding: 20px;
    gap: 20px;
}

/* Header */
.app-header {
    display: flex;
    flex-direction: column;
    justify-content: center;
}

#app-title {
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: 1.8rem;
    letter-spacing: 0.15em;
    background: linear-gradient(135deg, #ffffff 30%, var(--accent-bright) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    text-shadow: 0 4px 20px rgba(168, 85, 247, 0.15);
}

.subtitle {
    font-family: var(--font-sans);
    font-size: 0.75rem;
    color: var(--text-secondary);
    letter-spacing: 0.08em;
    text-transform: uppercase;
    margin-top: 2px;
}

/* Main Layout */
.explorer-layout {
    display: flex;
    flex: 1;
    gap: 20px;
    height: calc(100% - 70px);
    position: relative;
}

/* Viewport Area */
.canvas-viewport {
    flex: 1;
    position: relative;
    background: rgba(4, 5, 8, 0.9);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-glass);
    overflow: hidden;
    box-shadow: 
        inset 0 0 40px rgba(0, 0, 0, 0.8),
        0 10px 30px -10px rgba(0, 0, 0, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
}

#fractal-canvas {
    display: block;
    cursor: grab;
    transition: filter 0.3s ease;
}

#fractal-canvas:active {
    cursor: grabbing;
}

/* Glassmorphic Panel */
.control-panel {
    width: 360px;
    background: var(--bg-panel);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-lg);
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 24px;
    overflow-y: auto;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.3);
    z-index: 10;
}

/* Panel Sections */
.panel-section {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.section-title {
    font-family: var(--font-sans);
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--text-secondary);
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

/* Search Input */
.search-input {
    width: 100%;
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--text-primary);
    font-family: var(--font-sans);
    font-size: 0.95rem;
    padding: 10px 14px;
    border-radius: var(--radius-md);
    outline: none;
    transition: var(--transition);
}

.search-input:focus {
    border-color: rgba(255, 255, 255, 0.3);
    background: rgba(0, 0, 0, 0.5);
    box-shadow: 0 0 0 2px rgba(255, 255, 255, 0.05);
}

.search-input::placeholder {
    color: var(--text-secondary);
}

.type-selector {
    display: flex;
    gap: 8px;
    background: rgba(0, 0, 0, 0.2);
    padding: 4px;
    border-radius: var(--radius-md);
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.type-btn {
    flex: 1;
    background: transparent;
    border: none;
    color: var(--text-secondary);
    font-family: var(--font-sans);
    font-size: 0.8rem;
    font-weight: 600;
    padding: 8px 0;
    border-radius: 6px;
    cursor: pointer;
    transition: var(--transition);
}

.type-btn:hover {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.05);
}

.type-btn.active {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-primary);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

select.search-input {
    -webkit-appearance: menulist-button;
    appearance: menulist-button;
    cursor: pointer;
}

.power-control {
    display: flex;
    gap: 8px;
    align-items: center;
}

.power-input {
    flex: 1;
    text-align: center;
    -moz-appearance: textfield;
}
.power-input::-webkit-outer-spin-button,
.power-input::-webkit-inner-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

.power-btn {
    width: 36px;
    height: 36px;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 1.2rem;
    font-weight: bold;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
}

.power-btn:hover {
    background: rgba(255, 255, 255, 0.2);
}

/* Coords Slider Styling for Julia */
.coords-group {
    display: flex;
    flex-direction: column;
    gap: 14px;
    background: rgba(0, 0, 0, 0.25);
    padding: 14px;
    border-radius: var(--radius-md);
    border: 1px solid rgba(255, 255, 255, 0.03);
}

.coord-slider {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.slider-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.85rem;
}

.slider-header label {
    color: var(--text-secondary);
    font-family: var(--font-sans);
}

.slider-header span {
    font-family: var(--font-sans);
    font-weight: bold;
    color: var(--accent-bright);
}

.slider-description {
    font-size: 0.75rem;
    color: var(--text-secondary);
    line-height: 1.4;
}

/* Custom Styled Range Input */
input[type="range"] {
    -webkit-appearance: none;
    appearance: none;
    width: 100%;
    height: 6px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 3px;
    outline: none;
    margin: 8px 0;
    transition: var(--transition);
}

input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--accent-bright);
    box-shadow: 0 0 10px var(--accent-glow);
    cursor: pointer;
    transition: var(--transition);
}

input[type="range"]::-webkit-slider-thumb:hover {
    transform: scale(1.2);
    background: #ffffff;
    box-shadow: 0 0 15px rgba(255, 255, 255, 0.6);
}

/* Palette Card Selectors */
.palette-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
}

.palette-card {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-md);
    padding: 10px;
    cursor: pointer;
    display: flex;
    flex-direction: column;
    gap: 8px;
    align-items: flex-start;
    text-align: left;
    transition: var(--transition);
}

.palette-card:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(255, 255, 255, 0.15);
    transform: translateY(-2px);
}

.palette-card.active {
    background: rgba(168, 85, 247, 0.07);
    border-color: var(--accent);
    box-shadow: 0 0 15px rgba(168, 85, 247, 0.15);
}

.palette-preview {
    width: 100%;
    height: 12px;
    border-radius: 6px;
    display: block;
}

.palette-label {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-primary);
}

/* Palette Gradients Previews */
.cyberpunk-grad {
    background: linear-gradient(90deg, #0a0a1e, #0080ff, #8000ff, #ff0080, #ffe6ff);
}
.fire-grad {
    background: linear-gradient(90deg, #000, #780000, #e65a00, #ffc800, #ffffc8);
}
.ocean-grad {
    background: linear-gradient(90deg, #020818, #004c99, #009999, #66ffb2, #fff);
}
.slate-grad {
    background: linear-gradient(90deg, #0f172a, #334155, #64748b, #94a3b8, #f1f5f9);
}

/* Action Buttons */
.action-section {
    margin-top: auto;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.action-btn {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-glass);
    color: var(--text-primary);
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 0.9rem;
    padding: 12px;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: var(--transition);
    text-align: center;
}

.action-btn:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.2);
}

.action-btn.primary {
    background: linear-gradient(135deg, var(--accent), #7c3aed);
    border: none;
    box-shadow: 0 4px 15px rgba(124, 58, 237, 0.3);
}

.action-btn.primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(124, 58, 237, 0.5);
    background: linear-gradient(135deg, var(--accent-bright), var(--accent));
}

/* Badges & Descriptions */
.badge {
    font-family: var(--font-sans);
    font-weight: bold;
    font-size: 0.8rem;
    color: var(--accent-bright);
    background: rgba(168, 85, 247, 0.15);
    padding: 2px 8px;
    border-radius: 4px;
}

.panel-info {
    font-size: 0.75rem;
    color: var(--text-secondary);
    line-height: 1.5;
    background: rgba(255, 255, 255, 0.02);
    padding: 12px;
    border-radius: var(--radius-md);
    border: 1px solid rgba(255, 255, 255, 0.02);
}

/* HUD Overlay overlay */
.hud-overlay {
    position: absolute;
    bottom: 20px;
    left: 20px;
    background: rgba(10, 11, 18, 0.8);
    backdrop-filter: blur(8px);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-md);
    padding: 10px 16px;
    display: flex;
    flex-direction: column;
    gap: 4px;
    z-index: 5;
    font-family: var(--font-sans);
    font-size: 0.75rem;
}

.hud-item {
    display: flex;
    gap: 8px;
}

.hud-label {
    color: var(--text-secondary);
    font-weight: bold;
}

/* Spinner & Loading */
.loading-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(7, 8, 14, 0.6);
    backdrop-filter: blur(4px);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 16px;
    z-index: 6;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s ease;
}

.loading-overlay.active {
    opacity: 1;
    pointer-events: auto;
}

.spinner {
    width: 40px;
    height: 40px;
    border: 3px solid rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    border-top-color: var(--accent-bright);
    animation: spin 1s linear infinite;
    box-shadow: 0 0 10px var(--accent-glow);
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Utility classes */
.hidden {
    display: none !important;
}

/* Custom Scrollbar for Sidebar Panel */
.control-panel::-webkit-scrollbar {
    width: 6px;
}

.control-panel::-webkit-scrollbar-track {
    background: transparent;
}

.control-panel::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 3px;
}

.control-panel::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.2);
}

/* Mobile Responsiveness */
@media (max-width: 950px) {
    .app-container {
        padding: 10px;
        gap: 10px;
        height: auto;
        overflow: auto;
    }
    
    .explorer-layout {
        flex-direction: column-reverse;
        height: auto;
        gap: 10px;
    }
    
    .control-panel {
        width: 100%;
        height: auto;
        max-height: none;
    }
    
    .canvas-viewport {
        height: 500px;
        width: 100%;
    }
}