:root {
    --bg-base: #050507;
    --bg-glass: rgba(20, 20, 25, 0.65);
    --bg-glass-hover: rgba(30, 30, 35, 0.75);
    --bg-glass-solid: #121215;
    --border-glass: rgba(255, 255, 255, 0.08);
    --border-glass-hover: rgba(255, 255, 255, 0.15);
    --text-primary: #f5f5f7;
    --text-secondary: #a1a1aa;
    --text-muted: #71717a;
    --accent: #6366f1;
    --accent-hover: #4f46e5;
    --accent-glow: rgba(99, 102, 241, 0.3);
    --danger: #ef4444;
    --shadow-glow: 0 8px 32px 0 rgba(0, 0, 0, 0.45);
    --shadow-inset: inset 0 1px 1px 0 rgba(255, 255, 255, 0.05);
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-smooth: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html, body {
    height: 100%;
    width: 100%;
    overflow: hidden;
    background: var(--bg-base);
    color: var(--text-primary);
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    user-select: none;
}

#background-effects {
    z-index: 0;
}

.orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.4;
    animation: float 15s infinite ease-in-out;
}

.orb-1 {
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, #4f46e5, transparent);
    top: -100px;
    left: -100px;
    animation-delay: 0s;
}

.orb-2 {
    width: 350px;
    height: 350px;
    background: radial-gradient(circle, #ec4899, transparent);
    bottom: -100px;
    right: -50px;
    animation-delay: 5s;
}

.orb-3 {
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, #06b6d4, transparent);
    top: 40%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation-delay: 10s;
}

@keyframes float {
    0%, 100% { transform: translate(0, 0) scale(1); }
    33% { transform: translate(50px, -30px) scale(1.1); }
    66% { transform: translate(-30px, 40px) scale(0.9); }
}

.widget-container {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: calc(100% - 2rem);
    max-width: 1400px;
    height: calc(100% - 2rem);
    max-height: 880px;
    background: var(--bg-glass);
    backdrop-filter: blur(24px) saturate(180%);
    -webkit-backdrop-filter: blur(24px) saturate(180%);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-glow), var(--shadow-inset);
    transition: height var(--transition-smooth), width var(--transition-smooth), box-shadow var(--transition-fast);
    display: flex;
    flex-direction: column;
    padding: 1.5rem;
    z-index: 10;
}

@media (max-width: 768px) {
    .widget-container {
        width: 100%;
        height: 100%;
        max-width: 100%;
        max-height: 100%;
        border-radius: 0;
        padding: 1rem;
    }
}

.widget-header {
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1.5rem;
    padding: 0 0.5rem;
}

#app-title {
    background: linear-gradient(135deg, #fff, #a1a1aa);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    letter-spacing: -0.02em;
    font-size: 1.5rem;
    font-weight: 700;
}

.breadcrumb {
    font-weight: 400;
    letter-spacing: 0.02em;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.breadcrumb-item {
    cursor: pointer;
    transition: color var(--transition-fast);
    color: var(--text-secondary);
}

.breadcrumb-item:hover {
    color: var(--text-primary);
}

.header-left, .header-right {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.icon-btn, .action-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.6rem 0.9rem;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
    backdrop-filter: blur(8px);
}

.icon-btn:hover, .action-btn:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: var(--border-glass-hover);
    color: var(--text-primary);
    transform: translateY(-1px);
}

.icon-btn:active, .action-btn:active {
    transform: translateY(0);
}

.icon-btn.active {
    background: var(--accent-glow);
    border-color: var(--accent);
    color: var(--text-primary);
}

.cards-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    grid-auto-rows: minmax(140px, 1fr);
    gap: 1.25rem;
    perspective: 1200px;
    flex-grow: 1;
    overflow-y: auto;
    overflow-x: hidden;
    padding-right: 0.5rem;
}

@media (max-width: 1024px) {
    .cards-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 768px) {
    .cards-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 480px) {
    .cards-grid {
        grid-template-columns: 1fr;
    }
}

.card {
    position: relative;
    transform-style: preserve-3d;
    transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1), z-index 0s linear 0.6s;
    cursor: pointer;
    min-height: 140px;
}

.card.flipped {
    z-index: 50;
    transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1), z-index 0s linear 0s;
}

.card-inner {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    transform-style: preserve-3d;
    transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.card.flipped .card-inner {
    transform: rotateY(180deg) scale(1.08);
    box-shadow: 0 20px 50px rgba(0,0,0,0.5);
}

.card-face {
    position: absolute;
    width: 100%;
    height: 100%;
    backface-visibility: hidden;
    -webkit-backface-visibility: hidden;
    background: var(--bg-glass);
    backdrop-filter: blur(16px) saturate(180%);
    -webkit-backdrop-filter: blur(16px) saturate(180%);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-md);
    padding: 1.25rem;
    display: flex;
    flex-direction: column;
    box-shadow: 0 4px 15px rgba(0,0,0,0.2);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.card-face:hover {
    border-color: var(--border-glass-hover);
    box-shadow: 0 8px 25px rgba(0,0,0,0.3), 0 0 0 1px var(--accent-glow);
}

.card-front {
    z-index: 2;
    transform: rotateY(0deg);
}

.card-back {
    transform: rotateY(180deg);
    background: rgba(18, 18, 22, 0.9);
    overflow-y: auto;
}

.card-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    line-height: 1.3;
    margin-bottom: 0.75rem;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.card-input-group {
    margin-top: auto;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.card-input, .card-select {
    width: 100%;
    padding: 0.5rem 0.75rem;
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 6px;
    color: var(--text-primary);
    font-size: 0.8rem;
    font-family: inherit;
    transition: border-color var(--transition-fast);
}

.card-input:focus, .card-select:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 2px var(--accent-glow);
}

.card-text {
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 1.5;
    white-space: pre-wrap;
    overflow-y: auto;
    flex-grow: 1;
    margin-bottom: 0.75rem;
}

.card-actions {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 0.75rem;
    padding-top: 0.75rem;
    border-top: 1px solid rgba(255,255,255,0.05);
}

.btn-icon-sm {
    background: transparent;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 0.35rem;
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
}

.btn-icon-sm:hover {
    color: var(--text-primary);
    background: rgba(255,255,255,0.1);
}

.btn-icon-sm.danger:hover {
    color: var(--danger);
    background: rgba(239, 68, 68, 0.1);
}

.expand-btn {
    position: absolute;
    bottom: 1rem;
    right: 1rem;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: rgba(255,255,255,0.1);
    border: 1px solid var(--border-glass);
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.expand-btn:hover {
    background: var(--accent);
    color: white;
    border-color: var(--accent);
    transform: scale(1.1);
}

.fav-btn {
    position: absolute;
    top: 1rem;
    right: 1rem;
    width: 24px;
    height: 24px;
}

.sortable-ghost {
    opacity: 0.4;
    background: var(--accent-glow) !important;
    border: 1px dashed var(--accent) !important;
}

.sortable-drag {
    opacity: 1 !important;
    transform: scale(1.05);
    z-index: 1000 !important;
    box-shadow: 0 20px 40px rgba(0,0,0,0.5) !important;
}

.widget-footer {
    flex-shrink: 0;
    margin-top: 1.5rem;
    position: relative;
}

.favorites-bar {
    display: flex;
    align-items: center;
    gap: 1rem;
    background: rgba(0,0,0,0.3);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-md);
    padding: 0.75rem 1.25rem;
    min-height: 56px;
    transform: translateY(calc(100% - 18px));
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
}

.favorites-bar::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 40px;
    height: 4px;
    background: var(--border-glass);
    border-radius: 0 0 4px 4px;
    cursor: pointer;
}

.favorites-bar:hover, .favorites-bar.active {
    transform: translateY(0);
}

.favorites-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-muted);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    white-space: nowrap;
    border-right: 1px solid var(--border-glass);
    padding-right: 1rem;
}

.favorites-list {
    display: flex;
    gap: 0.5rem;
    height: 100%;
    overflow-x: auto;
}

.fav-item {
    padding: 0.5rem 0.9rem;
    background: rgba(255,255,255,0.05);
    border: 1px solid var(--border-glass);
    border-radius: 6px;
    color: var(--text-primary);
    font-size: 0.8rem;
    cursor: pointer;
    white-space: nowrap;
    transition: all var(--transition-fast);
}

.fav-item:hover {
    background: var(--accent);
    border-color: var(--accent);
    color: white;
    transform: translateY(-2px);
}

.custom-scrollbar::-webkit-scrollbar, .custom-scrollbar-horizontal::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}

.custom-scrollbar::-webkit-scrollbar-track, .custom-scrollbar-horizontal::-webkit-scrollbar-track {
    background: transparent;
}

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

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

.modal-overlay {
    background: rgba(0,0,0,0.7);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    z-index: 100;
}

.modal-content {
    background: var(--bg-glass-solid);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-lg);
    box-shadow: 0 20px 60px rgba(0,0,0,0.5);
    overflow: hidden;
}

.modal-header {
    padding: 1.5rem;
    border-bottom: 1px solid var(--border-glass);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
}

.modal-body {
    padding: 1.5rem;
    overflow-y: auto;
    flex-grow: 1;
}

.modal-footer {
    padding: 1rem 1.5rem;
    border-top: 1px solid var(--border-glass);
    display: flex;
    justify-content: flex-end;
    gap: 0.75rem;
}

.form-group {
    margin-bottom: 1.25rem;
}

.form-label {
    display: block;
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.form-input, .form-textarea, .form-select {
    width: 100%;
    padding: 0.75rem 1rem;
    background: rgba(0,0,0,0.3);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-family: inherit;
    font-size: 0.95rem;
    transition: all var(--transition-fast);
}

.form-input:focus, .form-textarea:focus, .form-select:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-glow);
}

.form-textarea {
    min-height: 220px;
    resize: vertical;
    font-family: 'JetBrains Mono', 'Courier New', monospace;
    font-size: 0.85rem;
    line-height: 1.5;
}

.btn-primary, .btn-secondary, .btn-danger {
    padding: 0.6rem 1.25rem;
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
    border: 1px solid transparent;
}

.btn-primary {
    background: var(--accent);
    color: white;
}

.btn-primary:hover {
    background: var(--accent-hover);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px var(--accent-glow);
}

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

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

.btn-danger {
    background: transparent;
    color: var(--danger);
    border-color: var(--danger);
}

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

.toast-container {
    z-index: 200;
    pointer-events: none;
}

.toast {
    background: var(--bg-glass-solid);
    border: 1px solid var(--border-glass);
    border-left: 4px solid var(--accent);
    color: var(--text-primary);
    padding: 1rem 1.5rem;
    border-radius: var(--radius-sm);
    box-shadow: 0 10px 30px rgba(0,0,0,0.3);
    font-size: 0.875rem;
    font-weight: 500;
    pointer-events: auto;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    animation: toastIn 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    margin-bottom: 0.5rem;
}

.toast.success {
    border-left-color: #10b981;
}

.toast.error {
    border-left-color: var(--danger);
}

@keyframes toastIn {
    from { opacity: 0; transform: translateY(20px) scale(0.9); }
    to { opacity: 1; transform: translateY(0) scale(1); }
}

.hidden {
    display: none !important;
}

.flex {
    display: flex !important;
}

.empty-state {
    grid-column: 1 / -1;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
    font-size: 0.9rem;
    text-align: center;
    padding: 2rem;
}

.folder-icon {
    flex-grow: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0.8;
}