:root {
    /* Base Color Palette (Dark Theme Default) */
    --bg-dark: #0f111a;
    --bg-panel: rgba(26, 30, 44, 0.65);
    --bg-panel-hover: rgba(36, 41, 61, 0.8);
    
    --text-primary: #ffffff;
    --text-secondary: #94a3b8;
    
    --accent-blue: #3b82f6;
    --accent-purple: #8b5cf6;
    --accent-yellow: #f59e0b;
    --accent-green: #22c55e;
    --accent-red: #ef4444;
    
    --border-color: rgba(255, 255, 255, 0.08);
    --border-highlight: rgba(255, 255, 255, 0.2);
    
    /* Typography */
    --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
    --font-display: 'Outfit', system-ui, sans-serif;
    
    /* Shadows & Effects */
    --shadow-sm: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.3), 0 4px 6px -2px rgba(0, 0, 0, 0.15);
    --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.4), 0 10px 10px -5px rgba(0, 0, 0, 0.2);
    
    --glass-blur: blur(12px);
    --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
}

/* Theme: Fire */
[data-theme="fire"] {
    --bg-dark: #1a0f0f;
    --bg-panel: rgba(44, 26, 26, 0.65);
    --bg-panel-hover: rgba(61, 36, 36, 0.8);
    --accent-blue: #ef4444; 
    --accent-purple: #f97316; 
    --accent-yellow: #fde047; 
}

/* Theme: Water */
[data-theme="water"] {
    --bg-dark: #0f151a;
    --bg-panel: rgba(26, 36, 44, 0.65);
    --bg-panel-hover: rgba(36, 48, 61, 0.8);
    --accent-blue: #0ea5e9; 
    --accent-purple: #3b82f6; 
    --accent-yellow: #2dd4bf; 
}

/* Theme: Grass */
[data-theme="grass"] {
    --bg-dark: #0f1a12;
    --bg-panel: rgba(26, 44, 30, 0.65);
    --bg-panel-hover: rgba(36, 61, 42, 0.8);
    --accent-blue: #22c55e; 
    --accent-purple: #10b981; 
    --accent-yellow: #84cc16; 
}

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

body {
    font-family: var(--font-sans);
    background-color: var(--bg-dark);
    color: var(--text-primary);
    min-height: 100vh;
    overflow-x: hidden;
    line-height: 1.5;
    transition: background-color 0.5s ease;
}

/* Background Animations */
.background-elements {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: -1;
    overflow: hidden;
    pointer-events: none;
}

.orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.5;
    animation: float 20s infinite ease-in-out alternate;
    transition: background 0.5s ease;
}

.orb-1 { top: -10%; left: -10%; width: 50vw; height: 50vw; background: radial-gradient(circle, var(--accent-blue) 0%, transparent 70%); }
.orb-2 { bottom: -20%; right: -10%; width: 60vw; height: 60vw; background: radial-gradient(circle, var(--accent-purple) 0%, transparent 70%); animation-delay: -5s; }
.orb-3 { top: 40%; left: 60%; width: 30vw; height: 30vw; background: radial-gradient(circle, var(--accent-yellow) 0%, transparent 70%); opacity: 0.2; animation-delay: -10s; }

@keyframes float {
    0% { transform: translate(0, 0) scale(1); }
    100% { transform: translate(5%, 5%) scale(1.1); }
}

/* Layout */
.app-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 2rem;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* Glassmorphism Panel */
.glass-panel {
    background: var(--bg-panel);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    box-shadow: var(--shadow-md);
    transition: background 0.5s ease, border-color 0.5s ease;
}

/* Header & Nav */
header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.25rem 2rem;
    margin-bottom: 2rem;
    gap: 1.5rem;
    position: sticky;
    top: 1rem;
    z-index: 100;
}

.logo h1 {
    font-family: var(--font-display);
    font-weight: 800;
    font-size: 1.75rem;
    background: linear-gradient(135deg, #fff 0%, var(--accent-purple) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    letter-spacing: -0.02em;
}

.nav-tabs {
    display: flex;
    gap: 0.5rem;
    background: rgba(0,0,0,0.2);
    padding: 0.25rem;
    border-radius: 12px;
    border: 1px solid var(--border-color);
}

.nav-tab {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    padding: 0.5rem 1rem;
    border-radius: 8px;
    font-family: var(--font-sans);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.nav-tab:hover {
    color: white;
}

.nav-tab.active {
    background: var(--accent-blue);
    color: white;
    box-shadow: 0 4px 10px rgba(59, 130, 246, 0.3);
}

/* View Sections */
.view-section {
    margin-bottom: 2rem;
}

/* Search Tools */
.search-container {
    max-width: 600px;
    display: flex;
    gap: 0.5rem;
    margin: 0 auto 2rem;
}

.search-bar {
    flex-grow: 1;
    display: flex;
    position: relative;
}

#search-input {
    width: 100%;
    padding: 0.875rem 1.25rem;
    padding-right: 3rem;
    border-radius: 12px;
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid var(--border-color);
    color: white;
    font-family: var(--font-sans);
    font-size: 1rem;
    transition: var(--transition);
}

#search-input:focus {
    outline: none;
    border-color: var(--accent-blue);
    box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.2);
    background: rgba(0, 0, 0, 0.4);
}

.search-btn, .scan-btn {
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    border-radius: 12px;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
}

.search-btn {
    position: absolute;
    right: 0;
    top: 0;
    height: 100%;
    background: transparent;
    border: none;
    padding: 0 1rem;
}

.scan-btn { padding: 0 1rem; }
.search-btn:hover, .scan-btn:hover { color: white; background: rgba(255, 255, 255, 0.1); }
.scan-btn:hover { background: rgba(59, 130, 246, 0.2); border-color: var(--accent-blue); }

/* Portfolio Dashboard */
.portfolio-dashboard {
    display: flex;
    justify-content: center;
    gap: 4rem;
    padding: 2rem;
    text-align: center;
}

.portfolio-stat {
    display: flex;
    flex-direction: column;
}

.stat-label {
    color: var(--text-secondary);
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.5rem;
}

.stat-value {
    font-family: var(--font-display);
    font-size: 2.5rem;
    font-weight: 800;
}

.stat-value.highlight {
    background: linear-gradient(135deg, var(--accent-yellow) 0%, var(--accent-purple) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* Controls */
.controls { display: flex; gap: 1rem; align-items: center; }
.toggle-container { display: flex; align-items: center; gap: 0.5rem; }
.toggle-label { font-family: var(--font-display); font-weight: 700; font-size: 0.9rem; color: var(--text-secondary); }

/* Toggle Switch */
.switch { position: relative; display: inline-block; width: 44px; height: 24px; }
.switch input { opacity: 0; width: 0; height: 0; }
.slider { position: absolute; cursor: pointer; top: 0; left: 0; right: 0; bottom: 0; background-color: rgba(0,0,0,0.4); transition: .4s; border: 1px solid var(--border-color); }
.slider:before { position: absolute; content: ""; height: 18px; width: 18px; left: 2px; bottom: 2px; background-color: var(--text-secondary); transition: .4s; }
.slider.round { border-radius: 24px; }
.slider.round:before { border-radius: 50%; }
input:checked + .slider { background-color: var(--accent-blue); border-color: var(--accent-blue); }
input:checked + .slider:before { transform: translateX(20px); background-color: white; }
input:checked ~ .toggle-label { color: white; }

/* Custom Select */
.select-wrapper { position: relative; width: 140px; }
.select-wrapper::after { content: ''; position: absolute; right: 1rem; top: 50%; transform: translateY(-50%); width: 0; height: 0; border-left: 5px solid transparent; border-right: 5px solid transparent; border-top: 5px solid var(--text-secondary); pointer-events: none; }
#currency-select, #theme-select { appearance: none; width: 100%; padding: 0.75rem 1.25rem; border-radius: 12px; background: rgba(0, 0, 0, 0.2); border: 1px solid var(--border-color); color: white; font-family: var(--font-sans); font-weight: 500; font-size: 0.9rem; cursor: pointer; transition: var(--transition); }
#currency-select:focus, #theme-select:focus { outline: none; border-color: var(--accent-blue); }
#currency-select option, #theme-select option { background: var(--bg-dark); color: white; }

/* Floating Compare Bar */
.floating-bar { position: fixed; bottom: 2rem; left: 50%; transform: translateX(-50%); z-index: 1000; padding: 1rem 2rem; border-radius: 30px; display: flex; align-items: center; gap: 1.5rem; animation: slideUp 0.3s ease; }
@keyframes slideUp { from { transform: translate(-50%, 100px); opacity: 0; } to { transform: translate(-50%, 0); opacity: 1; } }

/* Main Content */
main { flex-grow: 1; position: relative; }
.results-header { margin-bottom: 1.5rem; }
.results-header h2 { font-family: var(--font-display); font-size: 1.5rem; color: var(--text-primary); }

/* Status / Loading / Empty */
.status-message, .empty-state { display: flex; flex-direction: column; align-items: center; justify-content: center; padding: 4rem 0; text-align: center; }
.empty-state h2 { font-family: var(--font-display); font-size: 2rem; margin-bottom: 0.5rem; }
.empty-state p { color: var(--text-secondary); }
.spinner { width: 40px; height: 40px; border: 3px solid rgba(255, 255, 255, 0.1); border-radius: 50%; border-top-color: var(--accent-blue); animation: spin 1s ease-in-out infinite; margin-bottom: 1rem; }
@keyframes spin { to { transform: rotate(360deg); } }
@keyframes fadeIn { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } }

/* Grid */
.card-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 2rem; padding: 1rem 0; }

/* Card Component (Holo Tilt) */
.pokemon-card { background: var(--bg-panel); backdrop-filter: var(--glass-blur); -webkit-backdrop-filter: var(--glass-blur); border: 1px solid var(--border-color); border-radius: 16px; padding: 1.25rem; display: flex; flex-direction: column; height: 100%; position: relative; transform-style: preserve-3d; transition: transform 0.1s ease, border-color 0.3s ease, box-shadow 0.3s ease; }
.pokemon-card.hover-out { transition: transform 0.5s ease, box-shadow 0.5s ease; transform: perspective(1000px) rotateX(0deg) rotateY(0deg) !important; }
.pokemon-card.selected-compare { border-color: var(--accent-yellow); box-shadow: 0 0 0 2px var(--accent-yellow); }
.pokemon-card:hover { border-color: var(--border-highlight); box-shadow: 0 15px 30px -5px rgba(0, 0, 0, 0.5), 0 0 20px rgba(255, 255, 255, 0.1); z-index: 10; }

.card-glare { position: absolute; top: 0; left: 0; width: 100%; height: 100%; border-radius: 16px; pointer-events: none; z-index: 2; opacity: 0; mix-blend-mode: color-dodge; transition: opacity 0.3s ease; background: radial-gradient(circle at 50% 50%, rgba(255,255,255,0.4) 0%, transparent 60%); }
.pokemon-card:hover .card-glare { opacity: 1; }
.card-image-container { width: 100%; aspect-ratio: 63 / 88; margin-bottom: 1rem; border-radius: 8px; overflow: hidden; background: rgba(0, 0, 0, 0.3); position: relative; transform: translateZ(30px); }
.card-image { width: 100%; height: 100%; object-fit: cover; transition: opacity 0.3s; }
.card-image.loading { opacity: 0; }
.card-info { display: flex; flex-direction: column; flex-grow: 1; transform: translateZ(20px); }
.card-header { display: flex; justify-content: space-between; align-items: flex-start; margin-bottom: 0.5rem; }
.card-name { font-family: var(--font-display); font-size: 1.25rem; font-weight: 700; line-height: 1.2; }
.card-set { color: var(--text-secondary); font-size: 0.875rem; display: flex; align-items: center; gap: 0.5rem; }
.set-logo { height: 16px; width: auto; object-fit: contain; filter: drop-shadow(0 0 2px rgba(255,255,255,0.5)); }

.card-prices { margin-top: auto; padding-top: 1rem; border-top: 1px solid var(--border-color); }
.price-row { display: flex; justify-content: space-between; align-items: center; margin-bottom: 0.25rem; }
.price-label { font-size: 0.875rem; color: var(--text-secondary); }
.price-value { font-family: var(--font-display); font-weight: 700; font-size: 1.1rem; color: var(--accent-yellow); }
.no-price { color: var(--text-secondary); font-style: italic; font-size: 0.9rem; }

/* Card Actions */
.card-actions { display: flex; gap: 0.5rem; margin-top: 1rem; transform: translateZ(20px); }
.card-btn { flex: 1; padding: 0.5rem; background: rgba(255, 255, 255, 0.05); border: 1px solid var(--border-color); border-radius: 8px; color: var(--text-secondary); font-size: 0.85rem; cursor: pointer; transition: var(--transition); display: flex; align-items: center; justify-content: center; gap: 0.4rem; font-weight: 500;}
.card-btn:hover { background: rgba(255, 255, 255, 0.1); color: white; }
.card-btn.add-btn:hover { background: rgba(34, 197, 94, 0.2); color: var(--accent-green); border-color: var(--accent-green); }
.card-btn.remove-btn:hover { background: rgba(239, 68, 68, 0.2); color: var(--accent-red); border-color: var(--accent-red); }

/* Modal */
.modal { position: fixed; top: 0; left: 0; width: 100%; height: 100%; background: rgba(0, 0, 0, 0.8); backdrop-filter: blur(5px); z-index: 2000; display: flex; align-items: center; justify-content: center; padding: 1rem; }
.modal-content { width: 100%; max-width: 500px; padding: 1.5rem; display: flex; flex-direction: column; gap: 1rem; }
.modal-content.modal-lg { max-width: 900px; }
.modal-header { display: flex; justify-content: space-between; align-items: center; }
.modal-header h2 { font-family: var(--font-display); font-size: 1.5rem; }
.close-btn { background: none; border: none; color: white; font-size: 1.5rem; cursor: pointer; }
.video-container { width: 100%; aspect-ratio: 4/3; background: black; border-radius: 8px; overflow: hidden; position: relative; }
#camera-feed { width: 100%; height: 100%; object-fit: cover; }
.scan-overlay { position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%); height: 80%; aspect-ratio: 63 / 88; border: 2px dashed rgba(255, 255, 255, 0.8); border-radius: 12px; pointer-events: none; box-shadow: 0 0 0 9999px rgba(0, 0, 0, 0.6); }
.scan-instructions { text-align: center; color: var(--text-secondary); font-size: 0.9rem; }
.primary-btn { padding: 0.75rem 1.5rem; background: var(--accent-blue); color: white; border: none; border-radius: 12px; font-family: var(--font-sans); font-weight: 600; font-size: 1rem; cursor: pointer; transition: var(--transition); }
.primary-btn:hover { background: #2563eb; box-shadow: 0 0 15px rgba(59, 130, 246, 0.4); }
.primary-btn:disabled { background: #475569; cursor: not-allowed; box-shadow: none; }

/* VS Container */
.vs-container { display: flex; align-items: stretch; gap: 2rem; padding: 1rem 0; }
.vs-slot { flex: 1; display: flex; flex-direction: column; }
.vs-divider { display: flex; align-items: center; justify-content: center; font-family: var(--font-display); font-weight: 900; font-size: 2rem; color: var(--accent-yellow); text-shadow: 0 0 10px rgba(245, 158, 11, 0.5); }
.hidden { display: none !important; }
.visually-hidden { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); border: 0; }
footer { text-align: center; padding: 2rem 0; margin-top: 2rem; color: var(--text-secondary); font-size: 0.875rem; }

@media (max-width: 768px) {
    header { flex-direction: column; align-items: stretch; padding: 1rem; }
    .nav-tabs { justify-content: center; }
    .controls { flex-wrap: wrap; }
    .select-wrapper { flex-grow: 1; width: auto; }
    .vs-container { flex-direction: column; gap: 1rem; }
    .portfolio-dashboard { flex-direction: column; gap: 1.5rem; }
}

/* Toast Notifications */
.toast-container {
    position: fixed;
    top: 5rem;
    right: 2rem;
    z-index: 9999;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    pointer-events: none;
}

.toast {
    background: var(--bg-panel);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--border-color);
    color: white;
    padding: 1rem 1.5rem;
    border-radius: 12px;
    box-shadow: var(--shadow-lg);
    font-family: var(--font-sans);
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    transform: translateX(120%);
    opacity: 0;
    transition: transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275), opacity 0.4s ease;
    pointer-events: auto;
}

.toast.show {
    transform: translateX(0);
    opacity: 1;
}

.toast.success { border-left: 4px solid var(--accent-green); }
.toast.error { border-left: 4px solid var(--accent-red); }
.toast.info { border-left: 4px solid var(--accent-blue); }

/* Scanner Modal */
.camera-container {
    position: relative;
    width: 100%;
    max-width: 500px;
    margin: 0 auto;
    border-radius: 12px;
    overflow: hidden;
    background: #000;
}
#camera-stream {
    width: 100%;
    height: auto;
    display: block;
}
.scanner-overlay {
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    pointer-events: none;
    display: flex;
    justify-content: center;
    align-items: center;
    background: rgba(0,0,0,0.4);
}
.scan-frame {
    width: 80%;
    height: 80%;
    border: 2px dashed rgba(255,255,255,0.7);
    border-radius: 12px;
    box-shadow: 0 0 0 9999px rgba(0,0,0,0.5);
}