:root {
    --bg-dark: #0a0b10;
    --bg-surface: rgba(22, 24, 38, 0.65);
    --bg-surface-inner: rgba(255, 255, 255, 0.04);
    --border-color: rgba(255, 255, 255, 0.08);
    --border-hover: rgba(255, 255, 255, 0.15);
    
    --text-primary: #f0f2f5;
    --text-secondary: #9aa0a6;
    --text-muted: #60646c;
    
    /* MTG Theme Colors */
    --color-white: #f8e7bb;
    --color-blue: #0e68ab;
    --color-black: #a67edb;
    --color-red: #d32c2c;
    --color-green: #2ecc71;
    --color-multicolor: #d4af37;
    --color-colorless: #7f8c8d;
    
    /* App Functional Colors */
    --accent: #bb86fc;
    --accent-glow: rgba(187, 134, 252, 0.3);
    --danger: #cf6679;
    --danger-glow: rgba(207, 102, 121, 0.3);
    --success: #03dac6;
    
    /* Animation Timing */
    --transition-speed: 0.25s;
    --ease: cubic-bezier(0.25, 0.8, 0.25, 1);
}

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

body {
    background-color: var(--bg-dark);
    background-image: 
        radial-gradient(at 10% 20%, rgba(26, 21, 44, 0.5) 0px, transparent 50%),
        radial-gradient(at 90% 80%, rgba(14, 22, 47, 0.4) 0px, transparent 50%);
    background-attachment: fixed;
    color: var(--text-primary);
    font-family: 'Outfit', 'Noto Sans JP', sans-serif;
    min-height: 100vh;
    padding: 2rem 1.5rem;
    overflow-x: hidden;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}
::-webkit-scrollbar-track {
    background: rgba(0, 0, 0, 0.2);
}
::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.25);
}

/* Layout Utilities */
.app-container {
    max-width: 1400px;
    margin: 0 auto;
}

.hidden {
    display: none !important;
}

/* Glassmorphism Panel base */
.glass-panel {
    background: var(--bg-surface);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
}

.glass-panel-inner {
    background: var(--bg-surface-inner);
    border: 1px solid var(--border-color);
    border-radius: 12px;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.6rem 1.2rem;
    border-radius: 8px;
    font-family: inherit;
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-speed) var(--ease);
    border: 1px solid transparent;
}

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

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

.btn-danger {
    background: rgba(207, 102, 121, 0.1);
    color: #ff7597;
    border-color: rgba(207, 102, 121, 0.3);
}

.btn-danger:hover {
    background: rgba(207, 102, 121, 0.25);
    border-color: rgba(207, 102, 121, 0.5);
    box-shadow: 0 0 10px var(--danger-glow);
}

.btn-text-link {
    background: none;
    border: none;
    color: var(--accent);
    padding: 0.5rem;
    text-decoration: none;
}

.btn-text-link:hover {
    text-shadow: 0 0 8px var(--accent-glow);
}

/* Header */
.app-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    flex-wrap: wrap;
    gap: 1.5rem;
}

.logo-area {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.logo-icon {
    font-size: 2.2rem;
    background: linear-gradient(135deg, var(--accent), #e0a3ff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    filter: drop-shadow(0 0 8px var(--accent-glow));
}

.app-header h1 {
    font-size: 1.8rem;
    font-weight: 700;
    letter-spacing: -0.5px;
    background: linear-gradient(to right, #ffffff, #d3d7df);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.subtitle {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-top: 0.2rem;
}

.header-actions {
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
}

/* Dashboard / Stats Cards */
.dashboard {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 1.25rem;
    margin-bottom: 2rem;
}

.stat-card {
    padding: 1.5rem;
    display: flex;
    gap: 1.25rem;
    align-items: center;
    position: relative;
    overflow: hidden;
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
}

.highlight-total::before { background: var(--accent); }
.highlight-regular::before { background: #5a75ff; }
.highlight-silver::before { background: #b0c4de; }
.highlight-value::before { background: #ffd700; }

.stat-icon-wrapper {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
}

.highlight-total .stat-icon-wrapper { color: var(--accent); background: rgba(187, 134, 252, 0.05); }
.highlight-regular .stat-icon-wrapper { color: #5a75ff; background: rgba(90, 117, 255, 0.05); }
.highlight-silver .stat-icon-wrapper { color: #b0c4de; background: rgba(176, 196, 222, 0.05); }
.highlight-value .stat-icon-wrapper { color: #ffd700; background: rgba(255, 215, 0, 0.05); }

.stat-info {
    flex-grow: 1;
}

.stat-info h3 {
    font-size: 0.85rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.stat-value-row {
    display: flex;
    align-items: baseline;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
}

.stat-value {
    font-size: 1.6rem;
    font-weight: 600;
    color: var(--text-primary);
}

.stat-detail {
    color: var(--text-muted);
    font-size: 0.85rem;
}

.progress-bar-container {
    background: rgba(255, 255, 255, 0.05);
    height: 6px;
    border-radius: 3px;
    overflow: hidden;
    width: 100%;
}

.progress-bar {
    height: 100%;
    border-radius: 3px;
    transition: width 0.6s cubic-bezier(0.1, 0.8, 0.25, 1);
}

.highlight-total .progress-bar { background: linear-gradient(to right, var(--accent), #e0a3ff); }
.highlight-regular .progress-bar { background: #5a75ff; }
.highlight-silver .progress-bar { background: #b0c4de; }

.price-timestamp {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-top: 0.25rem;
}

/* Controls Panel */
.controls-panel {
    padding: 1.5rem;
    margin-bottom: 2rem;
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.control-row {
    display: flex;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.secondary-controls {
    align-items: center;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    padding-top: 1.25rem;
}

.control-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.search-group {
    flex-grow: 1;
    min-width: 280px;
}

.sort-group {
    min-width: 200px;
}

.control-group label {
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.control-group input,
.control-group select {
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 0.75rem 1rem;
    color: var(--text-primary);
    font-family: inherit;
    font-size: 0.95rem;
    transition: all var(--transition-speed) var(--ease);
}

.control-group input:focus,
.control-group select:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 8px var(--accent-glow);
}

/* Filters */
.filter-group {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    flex-wrap: wrap;
}

.filter-label {
    font-size: 0.85rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.color-filters, 
.rarity-filters, 
.ownership-filters {
    display: flex;
    gap: 0.4rem;
    flex-wrap: wrap;
}

.color-btn,
.rarity-btn,
.ownership-btn {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    padding: 0.4rem 0.8rem;
    border-radius: 6px;
    font-family: inherit;
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-speed) var(--ease);
}

.color-btn:hover,
.rarity-btn:hover,
.ownership-btn:hover {
    background: rgba(255, 255, 255, 0.08);
    color: var(--text-primary);
}

.color-btn.active,
.rarity-btn.active,
.ownership-btn.active {
    background: var(--accent);
    color: #000000;
    font-weight: 600;
    border-color: var(--accent);
    box-shadow: 0 0 10px var(--accent-glow);
}

/* Specific styling for MTG Color filters */
.color-btn.mtg-w { color: var(--color-white); }
.color-btn.mtg-u { color: #5dade2; }
.color-btn.mtg-b { color: #d7bde2; }
.color-btn.mtg-r { color: #f1948a; }
.color-btn.mtg-g { color: #82e0aa; }
.color-btn.mtg-m { color: #f5b041; }
.color-btn.mtg-c { color: #bdc3c7; }

.color-btn.mtg-w.active { background: var(--color-white); color: #000; border-color: var(--color-white); box-shadow: 0 0 8px rgba(248, 231, 187, 0.4); }
.color-btn.mtg-u.active { background: var(--color-blue); color: #fff; border-color: var(--color-blue); box-shadow: 0 0 8px rgba(14, 104, 171, 0.4); }
.color-btn.mtg-b.active { background: var(--color-black); color: #fff; border-color: var(--color-black); box-shadow: 0 0 8px rgba(166, 126, 219, 0.4); }
.color-btn.mtg-r.active { background: var(--color-red); color: #fff; border-color: var(--color-red); box-shadow: 0 0 8px rgba(211, 44, 44, 0.4); }
.color-btn.mtg-g.active { background: var(--color-green); color: #000; border-color: var(--color-green); box-shadow: 0 0 8px rgba(46, 204, 113, 0.4); }
.color-btn.mtg-m.active { background: var(--color-multicolor); color: #000; border-color: var(--color-multicolor); box-shadow: 0 0 8px rgba(212, 175, 55, 0.4); }
.color-btn.mtg-c.active { background: var(--color-colorless); color: #000; border-color: var(--color-colorless); box-shadow: 0 0 8px rgba(127, 140, 141, 0.4); }

/* Card Grid */
.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 1.5rem;
}

.no-results {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    padding: 5rem 0;
    color: var(--text-muted);
}

.no-results i {
    width: 64px;
    height: 64px;
}

.no-results p {
    font-size: 1.1rem;
}

/* Card Item */
.card-item {
    display: flex;
    flex-direction: column;
    position: relative;
    transition: transform 0.3s cubic-bezier(0.25, 0.8, 0.25, 1), box-shadow 0.3s ease;
    overflow: hidden;
    height: 100%;
}

.card-item:hover {
    transform: translateY(-6px);
}

/* Color Coding Border / Shadows */
.card-item.color-W { border-color: rgba(248, 231, 187, 0.2); }
.card-item.color-U { border-color: rgba(14, 104, 171, 0.25); }
.card-item.color-B { border-color: rgba(166, 126, 219, 0.2); }
.card-item.color-R { border-color: rgba(211, 44, 44, 0.25); }
.card-item.color-G { border-color: rgba(46, 204, 113, 0.25); }
.card-item.color-M { border-color: rgba(212, 175, 55, 0.25); }
.card-item.color-C { border-color: rgba(127, 140, 141, 0.2); }

.card-item.color-W:hover { box-shadow: 0 10px 20px rgba(248, 231, 187, 0.08); border-color: rgba(248, 231, 187, 0.5); }
.card-item.color-U:hover { box-shadow: 0 10px 20px rgba(14, 104, 171, 0.12); border-color: rgba(14, 104, 171, 0.6); }
.card-item.color-B:hover { box-shadow: 0 10px 20px rgba(166, 126, 219, 0.08); border-color: rgba(166, 126, 219, 0.5); }
.card-item.color-R:hover { box-shadow: 0 10px 20px rgba(211, 44, 44, 0.12); border-color: rgba(211, 44, 44, 0.6); }
.card-item.color-G:hover { box-shadow: 0 10px 20px rgba(46, 204, 113, 0.12); border-color: rgba(46, 204, 113, 0.6); }
.card-item.color-M:hover { box-shadow: 0 10px 20px rgba(212, 175, 55, 0.12); border-color: rgba(212, 175, 55, 0.6); }
.card-item.color-C:hover { box-shadow: 0 10px 20px rgba(127, 140, 141, 0.08); border-color: rgba(127, 140, 141, 0.5); }

/* Card Top Art Link */
.card-art-link {
    cursor: pointer;
    display: block;
    position: relative;
    width: 100%;
    aspect-ratio: 5 / 7;
    overflow: hidden;
    background: #000;
    border-radius: 12px 12px 0 0;
}

.card-art-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s cubic-bezier(0.25, 0.8, 0.25, 1);
}

.card-art-link:hover .card-art-img {
    transform: scale(1.05);
}

.card-art-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to bottom, rgba(0,0,0,0) 60%, rgba(0,0,0,0.85) 100%);
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: 0.75rem;
}

.card-type-badge {
    position: absolute;
    top: 0.5rem;
    right: 0.5rem;
    background: rgba(0,0,0,0.65);
    border: 1px solid var(--border-color);
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
    font-size: 0.7rem;
    text-transform: uppercase;
    font-weight: 500;
    letter-spacing: 0.5px;
}

.card-numbers {
    color: var(--text-muted);
    font-size: 0.75rem;
    font-weight: 500;
}

.card-title-eng {
    font-size: 1rem;
    font-weight: 600;
    color: #fff;
    margin-top: 0.15rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.card-title-jap {
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-top: 0.1rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* Card Lower Content & Checklist Toggles */
.card-content-area {
    padding: 0.75rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    background: rgba(0,0,0,0.1);
    border-radius: 0 0 12px 12px;
    border-top: 1px solid rgba(255, 255, 255, 0.03);
    flex-grow: 1;
}

.variant-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.4rem 0.5rem;
    border-radius: 6px;
    transition: background 0.2s ease;
}

.variant-row:hover {
    background: rgba(255, 255, 255, 0.02);
}

.variant-info {
    display: flex;
    flex-direction: column;
}

.variant-name {
    font-size: 0.8rem;
    font-weight: 500;
}

.variant-name.foil-text {
    background: linear-gradient(to right, #cfdbf3, #e0bbff, #cfdbf3);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    font-weight: 600;
}

.variant-price {
    font-size: 0.75rem;
    color: var(--text-muted);
}

/* Checkbox Switch design */
.switch-container {
    position: relative;
    display: inline-block;
    width: 38px;
    height: 20px;
}

.switch-container input {
    opacity: 0;
    width: 0;
    height: 0;
}

.switch-slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(255,255,255,0.08);
    border: 1px solid var(--border-color);
    transition: .3s;
    border-radius: 20px;
}

.switch-slider:before {
    position: absolute;
    content: "";
    height: 12px;
    width: 12px;
    left: 3px;
    bottom: 3px;
    background-color: var(--text-secondary);
    transition: .3s;
    border-radius: 50%;
}

.switch-container input:checked + .switch-slider {
    background-color: var(--success);
    border-color: var(--success);
}

.switch-container input:checked + .switch-slider:before {
    transform: translateX(18px);
    background-color: #000000;
}

/* Foil version switch custom success */
.variant-row.foil-row .switch-container input:checked + .switch-slider {
    background-color: var(--accent);
    border-color: var(--accent);
    box-shadow: 0 0 6px var(--accent-glow);
}

.variant-row.foil-row .switch-container input:checked + .switch-slider:before {
    background-color: #000000;
}

/* Modal Styling */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(4, 4, 6, 0.85);
    backdrop-filter: blur(8px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 1;
    transition: opacity 0.3s ease;
    padding: 1.5rem;
}

.modal-content {
    max-width: 860px;
    width: 100%;
    position: relative;
    border-radius: 24px;
    overflow: hidden;
    animation: modalSlideUp 0.35s cubic-bezier(0.1, 0.8, 0.25, 1);
}

@keyframes modalSlideUp {
    from { transform: translateY(40px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

.modal-close-btn {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    width: 36px;
    height: 36px;
    border-radius: 50%;
    color: var(--text-primary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.2s ease;
    z-index: 10;
}

.modal-close-btn:hover {
    background: rgba(255, 255, 255, 0.15);
}

.modal-body {
    display: flex;
    flex-wrap: wrap;
    padding: 2rem;
    gap: 2rem;
}

.modal-images {
    flex: 1 1 300px;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    align-items: center;
}

.image-toggle-container {
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid var(--border-color);
    padding: 0.3rem;
    border-radius: 8px;
    display: flex;
    width: 100%;
}

.image-tab {
    flex: 1;
    background: none;
    border: none;
    color: var(--text-secondary);
    padding: 0.5rem;
    border-radius: 6px;
    cursor: pointer;
    font-family: inherit;
    font-size: 0.85rem;
    font-weight: 500;
    transition: all 0.2s ease;
}

.image-tab.active {
    background: rgba(255, 255, 255, 0.08);
    color: var(--text-primary);
    box-shadow: 0 2px 6px rgba(0,0,0,0.25);
}

.modal-image-wrapper {
    position: relative;
    width: 100%;
    aspect-ratio: 5 / 7;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0,0,0,0.5);
    background: #000;
    max-width: 320px;
}

.modal-card-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* Foil sheen effect animation */
.foil-sheen {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        105deg,
        rgba(255, 255, 255, 0) 20%,
        rgba(224, 187, 252, 0.18) 35%,
        rgba(176, 196, 222, 0.25) 45%,
        rgba(187, 252, 235, 0.18) 55%,
        rgba(255, 255, 255, 0) 70%
    );
    background-size: 200% 200%;
    mix-blend-mode: color-dodge;
    pointer-events: none;
    animation: foilShift 6s ease infinite;
}

@keyframes foilShift {
    0% { background-position: 0% 0%; }
    50% { background-position: 100% 100%; }
    100% { background-position: 0% 0%; }
}

.modal-info {
    flex: 1.5 1 350px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.modal-header-row {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    gap: 1rem;
    margin-bottom: 0.25rem;
}

.modal-info h2 {
    font-size: 1.8rem;
    font-weight: 700;
    color: #fff;
}

.mana-cost-display {
    font-size: 1.1rem;
    font-weight: 600;
    letter-spacing: 1px;
    color: var(--text-secondary);
}

.modal-japanese-name {
    font-size: 1rem;
    color: var(--text-secondary);
    margin-bottom: 0.75rem;
    font-weight: 500;
}

.modal-card-type {
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-muted);
    font-weight: 500;
    margin-bottom: 1.25rem;
}

.modal-oracle-box {
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1.25rem;
    font-size: 0.95rem;
    line-height: 1.5;
    color: var(--text-primary);
    margin-bottom: 1.5rem;
    white-space: pre-line;
    max-height: 200px;
    overflow-y: auto;
}

.modal-toggles-section {
    margin-bottom: 1.5rem;
}

.modal-toggles-section h4 {
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-muted);
    margin-bottom: 0.75rem;
}

.modal-toggle-row {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.toggle-card-option {
    flex: 1 1 200px;
    padding: 1rem;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.option-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.option-title {
    font-size: 0.9rem;
    font-weight: 600;
}

.option-price {
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--success);
}

.option-control {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.collector-number-badge {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    padding: 0.25rem 0.5rem;
    border-radius: 6px;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-muted);
}

.modal-footer-links {
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    padding-top: 1rem;
    display: flex;
    justify-content: flex-end;
}

/* Toast Notifications */
.toast-container {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    z-index: 2000;
}

.toast {
    background: rgba(18, 19, 26, 0.9);
    backdrop-filter: blur(8px);
    border: 1px solid var(--border-color);
    padding: 0.75rem 1.25rem;
    border-radius: 8px;
    color: var(--text-primary);
    box-shadow: 0 4px 12px rgba(0,0,0,0.5);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    animation: toastSlideIn 0.3s cubic-bezier(0.1, 0.8, 0.25, 1);
    font-size: 0.9rem;
    font-weight: 500;
}

@keyframes toastSlideIn {
    from { transform: translateX(100%); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
}

.toast.toast-success { border-left: 3px solid var(--success); }
.toast.toast-error { border-left: 3px solid var(--danger); }
.toast.toast-info { border-left: 3px solid var(--accent); }

/* Responsive adjustments */
@media (max-width: 768px) {
    body {
        padding: 1.5rem 1rem;
    }
    
    .app-header {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .header-actions {
        width: 100%;
    }
    
    .header-actions button {
        flex-grow: 1;
    }
    
    .modal-body {
        padding: 1.25rem;
        gap: 1.25rem;
    }
    
    .modal-images {
        flex: 1 1 100%;
        max-width: 100%;
    }
    
    .modal-image-wrapper {
        max-width: 260px;
    }
    
    .modal-info {
        flex: 1 1 100%;
    }
}

/* Card Ownership Visual States */
.card-item.is-unowned .card-art-img {
    filter: grayscale(90%) opacity(0.45);
}

.card-item.has-owned .card-art-img {
    filter: none;
    opacity: 1;
}

.card-item.is-completed {
    border-color: var(--accent) !important;
    box-shadow: 0 0 20px rgba(187, 134, 252, 0.22) !important;
}

.card-item {
    transition: transform 0.3s cubic-bezier(0.25, 0.8, 0.25, 1), box-shadow 0.3s ease, opacity 0.3s ease, border-color 0.3s ease;
}

.card-art-img {
    transition: transform 0.5s cubic-bezier(0.25, 0.8, 0.25, 1), filter 0.4s ease, opacity 0.4s ease;
}

/* Authentication Styling */
.btn-primary {
    background: linear-gradient(135deg, var(--accent) 0%, #905cfc 100%);
    color: #ffffff;
    box-shadow: 0 4px 15px var(--accent-glow);
    border: 1px solid rgba(255, 255, 255, 0.1);
}
.btn-primary:hover {
    background: linear-gradient(135deg, #c79eff 0%, var(--accent) 100%);
    box-shadow: 0 6px 20px rgba(187, 134, 252, 0.5);
    transform: translateY(-1px);
}
.btn-primary:active {
    transform: translateY(0);
}

.auth-wrapper {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 85vh;
    width: 100%;
}
.auth-card {
    width: 100%;
    max-width: 420px;
    padding: 2.5rem 2rem;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}
.auth-header {
    text-align: center;
    margin-bottom: 0.5rem;
}
.auth-header .logo-icon {
    font-size: 3rem;
    margin-bottom: 0.75rem;
    animation: float 3s ease-in-out infinite;
}
.auth-header h2 {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
}
.auth-header p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}
.auth-tabs {
    display: flex;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 0.5rem;
}
.auth-tab {
    flex: 1;
    padding: 0.75rem;
    text-align: center;
    background: none;
    border: none;
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 1rem;
    cursor: pointer;
    transition: all var(--transition-speed) var(--ease);
    border-bottom: 2px solid transparent;
}
.auth-tab.active {
    color: var(--accent);
    border-bottom-color: var(--accent);
}
.auth-form {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}
.auth-field {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}
.auth-field label {
    color: var(--text-secondary);
    font-size: 0.85rem;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 0.25rem;
}
.auth-input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}
.auth-input-wrapper i {
    position: absolute;
    left: 1rem;
    color: var(--text-muted);
    width: 18px;
    height: 18px;
}
.auth-input-wrapper input {
    width: 100%;
    padding: 0.8rem 1rem 0.8rem 2.5rem;
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    font-family: inherit;
    font-size: 0.95rem;
    transition: all var(--transition-speed) var(--ease);
}
.auth-input-wrapper input:focus {
    outline: none;
    border-color: var(--accent);
    background: rgba(255, 255, 255, 0.06);
    box-shadow: 0 0 10px var(--accent-glow);
}
.auth-error {
    background: rgba(207, 102, 121, 0.15);
    border: 1px solid var(--danger);
    color: var(--danger);
    padding: 0.75rem 1rem;
    border-radius: 8px;
    font-size: 0.85rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}
.auth-footer {
    text-align: center;
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-top: 0.5rem;
}

/* User Info Badge in Header */
.user-badge {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border-color);
    padding: 0.4rem 0.85rem;
    border-radius: 20px;
    font-size: 0.9rem;
    transition: all 0.2s ease;
}
.user-badge:hover {
    border-color: var(--border-hover);
    background: rgba(255, 255, 255, 0.07);
}
.user-badge span {
    font-weight: 500;
    color: var(--text-primary);
}
.user-badge .logout-btn {
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: color 0.2s ease;
    padding: 0.2rem;
}
.user-badge .logout-btn:hover {
    color: var(--danger);
}

@keyframes float {
    0% { transform: translateY(0px); }
    50% { transform: translateY(-6px); }
    100% { transform: translateY(0px); }
}