/* Design Tokens & Theme Setup */
:root {
    /* Fonts */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    --font-heading: 'Outfit', var(--font-primary);

    /* Transitions */
    --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);

    /* Theme: Dark Mode (Default) */
    --bg-primary: #090d16;
    --bg-secondary: #121824;
    --bg-glass: rgba(18, 24, 36, 0.75);
    --bg-glass-hover: rgba(26, 34, 50, 0.85);
    --border-color: rgba(255, 255, 255, 0.08);
    --border-glass: rgba(255, 255, 255, 0.06);
    --text-primary: #f3f4f6;
    --text-secondary: #9ca3af;
    --text-muted: #6b7280;

    --primary-color: #6366f1;
    --primary-hover: #4f46e5;
    --primary-glow: rgba(99, 102, 241, 0.35);
    --accent-color: #10b981;
    --accent-purple: #8b5cf6;

    --income-color: #10b981;
    --income-glow: rgba(16, 185, 129, 0.2);
    --expense-color: #f43f5e;
    --expense-glow: rgba(244, 63, 94, 0.2);
    
    --card-shadow: 0 12px 40px 0 rgba(0, 0, 0, 0.4);
    --glow-color: rgba(99, 102, 241, 0.15);
    --glass-blur: 16px;
    --border-radius-sm: 8px;
    --border-radius-md: 16px;
    --border-radius-lg: 24px;
}

/* Theme Switch: Light Mode */
body.light-theme {
    --bg-primary: #f3f4f6;
    --bg-secondary: #ffffff;
    --bg-glass: rgba(255, 255, 255, 0.8);
    --bg-glass-hover: rgba(255, 255, 255, 0.95);
    --border-color: rgba(0, 0, 0, 0.08);
    --border-glass: rgba(0, 0, 0, 0.05);
    --text-primary: #111827;
    --text-secondary: #4b5563;
    --text-muted: #9ca3af;

    --primary-color: #4f46e5;
    --primary-hover: #4338ca;
    --primary-glow: rgba(79, 70, 229, 0.2);
    --accent-color: #059669;
    --accent-purple: #7c3aed;

    --income-color: #059669;
    --income-glow: rgba(5, 150, 105, 0.15);
    --expense-color: #e11d48;
    --expense-glow: rgba(225, 29, 72, 0.15);

    --card-shadow: 0 12px 40px 0 rgba(31, 38, 135, 0.06);
    --glow-color: rgba(79, 70, 229, 0.05);
}

/* Global Reset & Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: var(--font-primary);
}

body {
    background-color: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    overflow-x: hidden;
    transition: background-color var(--transition-normal), color var(--transition-normal);
    line-height: 1.5;
}

/* App Container */
.app-container {
    max-width: 1440px;
    margin: 0 auto;
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 24px;
}

/* Scrollbar Customization */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}
::-webkit-scrollbar-track {
    background: transparent;
}
::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: var(--text-muted);
}

/* Utilities */
.text-success { color: var(--income-color) !important; }
.text-danger { color: var(--expense-color) !important; }
.text-right { text-align: right; }
.btn-block { width: 100%; display: flex; justify-content: center; }

/* Buttons & Inputs */
button {
    font-family: var(--font-primary);
    cursor: pointer;
    border: none;
    outline: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-weight: 500;
    border-radius: var(--border-radius-sm);
    transition: all var(--transition-fast);
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--accent-purple) 100%);
    color: #ffffff;
    padding: 12px 20px;
    box-shadow: 0 4px 15px var(--primary-glow);
}
.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px var(--primary-glow);
    filter: brightness(1.1);
}
.btn-primary:active {
    transform: translateY(0);
}

.btn-secondary {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 10px 16px;
}
.btn-secondary:hover {
    background-color: var(--border-color);
    color: var(--text-primary);
}

.btn-danger {
    background-color: var(--expense-color);
    color: #ffffff;
    padding: 10px 16px;
    box-shadow: 0 4px 12px var(--expense-glow);
}
.btn-danger:hover {
    transform: translateY(-1px);
    background-color: #e11d48;
}

.btn-sm {
    padding: 6px 12px;
    font-size: 0.875rem;
    border-radius: 6px;
}

.btn-icon {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: var(--bg-glass);
    border: 1px solid var(--border-glass);
    color: var(--text-primary);
    position: relative;
    overflow: hidden;
}
.btn-icon:hover {
    background-color: var(--border-color);
    transform: scale(1.05);
}

.btn-text {
    background: none;
    color: var(--primary-color);
    padding: 0;
    font-size: 0.875rem;
}
.btn-text:hover {
    color: var(--primary-hover);
    text-decoration: underline;
}

.btn-icon-sm {
    width: 26px;
    height: 26px;
    border-radius: 50%;
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-fast);
}
.btn-icon-sm:hover {
    background-color: var(--primary-color);
    color: #ffffff;
    border-color: var(--primary-color);
    transform: scale(1.05);
}

/* Glassmorphism Panel */
.glass-panel {
    background: var(--bg-glass);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    border: 1px solid var(--border-glass);
    border-radius: var(--border-radius-md);
    box-shadow: var(--card-shadow);
    padding: 24px;
    transition: border-color var(--transition-normal), background-color var(--transition-normal);
}

/* Header Styling */
.main-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 24px;
    background: var(--bg-glass);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    border: 1px solid var(--border-glass);
    border-radius: var(--border-radius-md);
    box-shadow: var(--card-shadow);
}

.logo-area {
    display: flex;
    align-items: center;
    gap: 16px;
    cursor: pointer;
}

.logo-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--border-radius-sm);
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--accent-purple) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 15px var(--primary-glow);
    transition: transform 0.5s cubic-bezier(0.34, 1.56, 0.64, 1), box-shadow var(--transition-normal);
}

.logo-area:hover .logo-icon {
    transform: rotate(15deg) scale(1.06);
    box-shadow: 0 8px 25px var(--primary-glow);
}

.glow-icon {
    color: #ffffff;
    width: 24px;
    height: 24px;
    filter: drop-shadow(0 2px 5px rgba(255,255,255,0.4));
}

.logo-text h1 {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1.5rem;
    letter-spacing: -0.5px;
    background: linear-gradient(90deg, var(--text-primary) 30%, var(--primary-color) 120%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.logo-text p {
    font-size: 0.75rem;
    color: var(--text-secondary);
}

.header-controls {
    display: flex;
    align-items: center;
    gap: 12px;
}

/* Date Badge Style */
.date-badge {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-color);
    padding: 8px 16px;
    border-radius: 12px;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-secondary);
    display: inline-flex;
    align-items: center;
    gap: 8px;
    backdrop-filter: blur(10px);
    transition: var(--transition-normal);
}

.date-badge:hover {
    background: rgba(255, 255, 255, 0.04);
    border-color: rgba(255, 255, 255, 0.15);
    color: var(--text-primary);
}

/* Premium Year Selector Dropdown Wrapper */
.select-wrapper {
    position: relative;
    display: inline-flex;
    align-items: center;
}

.select-icon {
    position: absolute;
    left: 14px;
    width: 14px;
    height: 14px;
    color: var(--accent-purple);
    pointer-events: none;
    opacity: 0.85;
}

.year-select-badge {
    background: rgba(139, 92, 246, 0.07);
    border: 1px solid rgba(139, 92, 246, 0.2);
    color: #c084fc;
    padding: 8px 14px 8px 36px;
    border-radius: 12px;
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    outline: none;
    transition: var(--transition-normal);
    font-family: var(--font-primary);
    appearance: none; /* Hide default arrow to use custom icon styling */
    -webkit-appearance: none;
    -moz-appearance: none;
}

.year-select-badge:hover {
    background: rgba(139, 92, 246, 0.15);
    border-color: rgba(139, 92, 246, 0.4);
    box-shadow: 0 0 15px rgba(139, 92, 246, 0.25);
    color: #e9d5ff;
}

.year-select-badge option {
    background: #090d16;
    color: var(--text-primary);
}

/* Premium Back to Main Site Button */
.btn-back-main {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: linear-gradient(135deg, rgba(236, 72, 153, 0.1) 0%, rgba(139, 92, 246, 0.1) 100%);
    border: 1px solid rgba(139, 92, 246, 0.25);
    color: #f472b6;
    padding: 8px 16px;
    border-radius: 12px;
    font-size: 0.85rem;
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition-normal);
    backdrop-filter: blur(10px);
}

.btn-back-main i {
    width: 14px;
    height: 14px;
    transition: transform var(--transition-fast);
}

.btn-back-main:hover {
    background: linear-gradient(135deg, rgba(236, 72, 153, 0.15) 0%, rgba(139, 92, 246, 0.15) 100%);
    border-color: rgba(139, 92, 246, 0.45);
    color: #f472b6;
    box-shadow: 0 0 20px rgba(139, 92, 246, 0.3), 0 0 10px rgba(236, 72, 153, 0.15);
    transform: translateY(-1px);
}

.btn-back-main:hover i {
    transform: translateX(-3px);
}

/* Theme Toggle Transitions */
#theme-toggle .sun-icon { display: none; }
#theme-toggle .moon-icon { display: block; }
body.light-theme #theme-toggle .sun-icon { display: block; }
body.light-theme #theme-toggle .moon-icon { display: none; }

/* Main Content Workspace Layout */
.main-content {
    display: grid;
    grid-template-columns: 1fr 380px;
    gap: 24px;
}

.left-panel {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.right-panel {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

/* KPI Cards Layout */
.kpi-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 16px;
}

.kpi-card {
    background: var(--bg-glass);
    backdrop-filter: blur(var(--glass-blur));
    border: 1px solid var(--border-glass);
    border-radius: var(--border-radius-md);
    padding: 20px;
    box-shadow: var(--card-shadow);
    display: flex;
    flex-direction: column;
    gap: 12px;
    position: relative;
    overflow: hidden;
    transition: transform var(--transition-fast), border-color var(--transition-fast);
}

.kpi-card:hover {
    transform: translateY(-5px);
    border-color: var(--card-border-hover, rgba(255, 255, 255, 0.15));
}

.balance-card:hover {
    --card-border-hover: rgba(99, 102, 241, 0.3);
    box-shadow: 0 12px 35px var(--primary-glow);
}

.income-card:hover {
    --card-border-hover: rgba(16, 185, 129, 0.3);
    box-shadow: 0 12px 35px var(--income-glow);
}

.expense-card:hover {
    --card-border-hover: rgba(244, 63, 94, 0.3);
    box-shadow: 0 12px 35px var(--expense-glow);
}

.budget-card:hover {
    --card-border-hover: rgba(139, 92, 246, 0.3);
    box-shadow: 0 12px 35px rgba(139, 92, 246, 0.25);
}

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

.balance-card::before { background: linear-gradient(to bottom, var(--primary-color), var(--accent-purple)); }
.income-card::before { background: var(--income-color); }
.expense-card::before { background: var(--expense-color); }
.budget-card::before { background: var(--accent-purple); }

.kpi-card .card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.kpi-card .card-header i {
    width: 18px;
    height: 18px;
    opacity: 0.8;
}

.kpi-card .card-value {
    font-family: var(--font-heading);
    font-size: 1.8rem;
    font-weight: 700;
    letter-spacing: -0.5px;
    word-break: break-all;
}

.kpi-card .card-footer {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.75rem;
    margin-top: auto;
}

.sub-text {
    color: var(--text-muted);
}

/* Progress bar inside budget card */
.progress-bar-container {
    width: 100%;
    height: 6px;
    background-color: var(--border-color);
    border-radius: 3px;
    overflow: hidden;
    margin-bottom: 4px;
}

.progress-bar {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-color) 0%, var(--accent-purple) 100%);
    border-radius: 3px;
    transition: width var(--transition-slow);
}

.budget-status {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    margin-top: 4px;
}

/* Credit Cards Hub */
.section-container {
    background: var(--bg-glass);
    backdrop-filter: blur(var(--glass-blur));
    border: 1px solid var(--border-glass);
    border-radius: var(--border-radius-md);
    padding: 24px;
    box-shadow: var(--card-shadow);
}

.section-title-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.section-title-bar h2 {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 10px;
}

.section-title-bar h2 i {
    color: var(--primary-color);
}

.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 40px;
    text-align: center;
    color: var(--text-muted);
    border: 1px dashed var(--border-color);
    border-radius: var(--border-radius-md);
    gap: 12px;
}

.empty-state .large-icon {
    width: 48px;
    height: 48px;
    stroke-width: 1.5;
}

/* Virtual Credit Card Grid & Style */
.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 20px;
    perspective: 1000px;
}

.virtual-card {
    border-radius: var(--border-radius-md);
    padding: 20px;
    min-height: 180px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    color: #ffffff;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.3);
    position: relative;
    overflow: hidden;
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
    transform-style: preserve-3d;
}

.virtual-card:hover {
    transform: translateY(-8px) rotateX(4deg) rotateY(-4px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.4), 0 0 20px var(--glow-color);
}

/* Hologram foil effect */
.virtual-card::after {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    background: linear-gradient(125deg, rgba(255,255,255,0.15) 0%, rgba(255,255,255,0.05) 40%, rgba(0,0,0,0) 60%, rgba(0,0,0,0.15) 100%);
    pointer-events: none;
}

/* Credit Card Themes */
.card-theme-purple { background: linear-gradient(135deg, #7c3aed 0%, #31106e 100%); --glow-color: rgba(124, 58, 237, 0.3); }
.card-theme-blue { background: linear-gradient(135deg, #2563eb 0%, #0f2d7a 100%); --glow-color: rgba(37, 99, 235, 0.3); }
.card-theme-gold { background: linear-gradient(135deg, #eab308 0%, #713f12 100%); --glow-color: rgba(234, 179, 8, 0.3); }
.card-theme-dark { background: linear-gradient(135deg, #1e293b 0%, #030712 100%); --glow-color: rgba(30, 41, 59, 0.3); }
.card-theme-emerald { background: linear-gradient(135deg, #10b981 0%, #064e3b 100%); --glow-color: rgba(16, 185, 129, 0.3); }

.card-top {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
}

.card-brand {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1.15rem;
    letter-spacing: -0.5px;
    text-shadow: 0 2px 4px rgba(0,0,0,0.2);
}

.card-chip {
    width: 32px;
    height: 24px;
    background: linear-gradient(135deg, #fcd34d 0%, #f59e0b 100%);
    border-radius: 4px;
    box-shadow: inset 0 1px 2px rgba(255,255,255,0.4);
    position: relative;
}

.card-chip::before {
    content: '';
    position: absolute;
    width: 70%;
    height: 70%;
    border: 1px solid rgba(0,0,0,0.15);
    top: 15%;
    left: 15%;
    border-radius: 2px;
}

.card-middle {
    margin-top: 15px;
}

.card-middle .card-label {
    font-size: 0.65rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    opacity: 0.8;
}

.card-middle .card-due-amount {
    font-family: var(--font-heading);
    font-size: 1.6rem;
    font-weight: 700;
    margin-top: 2px;
    text-shadow: 0 2px 4px rgba(0,0,0,0.3);
}

.card-bottom {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    margin-top: auto;
}

.card-details {
    font-size: 0.75rem;
}

.card-details p {
    opacity: 0.9;
}

.card-details span {
    font-weight: 600;
}

.card-limit-bar {
    width: 100%;
    height: 4px;
    background-color: rgba(255, 255, 255, 0.2);
    border-radius: 2px;
    overflow: hidden;
    margin: 8px 0;
}

.card-limit-progress {
    height: 100%;
    background-color: #ffffff;
    border-radius: 2px;
    transition: width var(--transition-normal);
}

.card-actions-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    width: 100%;
    margin-top: 4px;
}

.btn-card-pay {
    background-color: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    border: 1px solid rgba(255, 255, 255, 0.15);
    color: #ffffff;
    padding: 4px 10px;
    font-size: 0.75rem;
    border-radius: 4px;
    transition: all var(--transition-fast);
}

.btn-card-pay:hover {
    background-color: #ffffff;
    color: #1e1b4b;
    transform: scale(1.05);
}

.btn-card-delete {
    background: none;
    color: rgba(255, 255, 255, 0.6);
    padding: 4px;
    border-radius: 4px;
}

.btn-card-delete:hover {
    color: #f43f5e;
    background-color: rgba(244, 63, 94, 0.15);
}

/* Charts Wrapper */
.charts-grid-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}

.chart-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
    flex-wrap: wrap;
    gap: 8px;
}

.chart-card h3 {
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 1.05rem;
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--text-primary);
    margin-bottom: 0;
}

.chart-toggle-group {
    display: flex;
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    padding: 2px;
    border-radius: 6px;
}

.btn-toggle {
    padding: 4px 10px;
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: 4px;
    background: none;
    color: var(--text-secondary);
    border: none;
    transition: all var(--transition-fast);
}

.btn-toggle:hover {
    color: var(--text-primary);
}

.btn-toggle.active[data-chart-type="expense"] {
    background-color: var(--expense-color);
    color: #ffffff;
}

.btn-toggle.active[data-chart-type="income"] {
    background-color: var(--income-color);
    color: #ffffff;
}

.chart-card h3 i {
    color: var(--primary-color);
}

.chart-wrapper {
    position: relative;
    height: 220px;
    width: 100%;
}

/* Transaction Form Styles */
.form-card {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.form-title h2 {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    font-weight: 600;
}

.form-title p {
    font-size: 0.75rem;
    color: var(--text-secondary);
}

/* Form Controls */
.type-toggle-container {
    display: flex;
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    padding: 4px;
    border-radius: var(--border-radius-sm);
    margin-bottom: 8px;
}

.type-toggle-btn {
    flex: 1;
    text-align: center;
    padding: 10px;
    cursor: pointer;
    font-weight: 600;
    font-size: 0.9rem;
    border-radius: 6px;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    color: var(--text-secondary);
}

.type-toggle-btn.active[data-type="expense"] {
    background-color: var(--expense-color);
    color: #ffffff;
    box-shadow: 0 4px 12px var(--expense-glow);
}

.type-toggle-btn.active[data-type="income"] {
    background-color: var(--income-color);
    color: #ffffff;
    box-shadow: 0 4px 12px var(--income-glow);
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
    margin-bottom: 16px;
}

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

.required {
    color: var(--expense-color);
    margin-left: 2px;
}

.input-with-icon {
    position: relative;
    display: flex;
    align-items: center;
}

.currency-label {
    position: absolute;
    left: 14px;
    font-family: var(--font-heading);
    font-weight: 600;
    color: var(--text-muted);
}

.amount-input-wrapper input {
    padding-left: 32px !important;
    font-family: var(--font-heading);
    font-size: 1.25rem;
    font-weight: 600;
}

input[type="text"],
input[type="number"],
input[type="date"],
select,
textarea {
    width: 100%;
    padding: 10px 14px;
    border-radius: var(--border-radius-sm);
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    font-size: 0.925rem;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

input[type="text"]:focus,
input[type="number"]:focus,
input[type="date"]:focus,
select:focus,
textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px var(--primary-glow);
}

select {
    appearance: none;
    -webkit-appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%236b7280' stroke-width='2'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' d='M19.5 8.25l-7.5 7.5-7.5-7.5'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 14px center;
    background-size: 16px;
    padding-right: 40px;
}

.input-tip {
    font-size: 0.725rem;
    color: var(--text-muted);
    margin-top: 2px;
}

.tags-input-container {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
}

/* Tag Cloud Style */
.tag-cloud-panel h3 {
    font-family: var(--font-heading);
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.tag-cloud-panel h3 i {
    color: var(--primary-color);
}

.tag-cloud {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    max-height: 120px;
    overflow-y: auto;
    padding-right: 4px;
}

.tag-badge {
    background-color: var(--border-color);
    color: var(--text-secondary);
    padding: 4px 10px;
    border-radius: 12px;
    font-size: 0.75rem;
    display: inline-flex;
    align-items: center;
    gap: 4px;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.tag-badge:hover {
    background-color: var(--primary-color);
    color: #ffffff;
}

.tag-badge.active {
    background-color: var(--primary-color);
    color: #ffffff;
    font-weight: 500;
}

/* History Section */
.history-section {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.history-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    flex-wrap: wrap;
    gap: 16px;
}

.header-left {
    display: flex;
    align-items: center;
    gap: 12px;
}

.header-left h2 {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 8px;
}

.header-left h2 i {
    color: var(--primary-color);
}

.count-badge {
    background-color: var(--border-color);
    color: var(--text-secondary);
    font-size: 0.75rem;
    padding: 4px 8px;
    border-radius: 4px;
    font-weight: 600;
}

.filter-controls {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
}

.filter-controls select,
.filter-controls input {
    padding: 8px 12px;
    font-size: 0.85rem;
    height: 38px;
}

.filter-controls select {
    width: auto;
}

.search-box {
    position: relative;
    display: flex;
    align-items: center;
}

.search-box i {
    position: absolute;
    left: 12px;
    color: var(--text-muted);
    width: 16px;
    height: 16px;
}

.search-box input {
    padding-left: 36px !important;
    width: 200px;
}

/* Transaction Table Styles */
.table-scroll-container {
    width: 100%;
    overflow-x: auto;
    border-radius: var(--border-radius-sm);
    border: 1px solid var(--border-color);
    min-height: 485px; /* Stable height to prevent layout collapse and scroll-jumping during page changes */
}

.transaction-table {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
    font-size: 0.9rem;
}

.transaction-table th,
.transaction-table td {
    padding: 12px 16px;
    border-bottom: 1px solid var(--border-color);
}

.transaction-table th {
    background-color: var(--bg-secondary);
    color: var(--text-secondary);
    font-weight: 600;
    white-space: nowrap;
}

.transaction-table th.sortable {
    cursor: pointer;
    user-select: none;
    transition: background-color var(--transition-fast);
}

.transaction-table th.sortable:hover {
    background-color: var(--border-color);
}

.sort-icon {
    width: 14px;
    height: 14px;
    vertical-align: middle;
    margin-left: 4px;
}

.transaction-table tbody tr {
    transition: background-color var(--transition-fast);
}

.transaction-table tbody tr:hover {
    background-color: var(--border-color);
}

.col-date { width: 110px; }
.col-type { width: 90px; }
.col-category { width: 130px; }
.col-desc { min-width: 180px; }
.col-tags { min-width: 120px; }
.col-method { width: 130px; }
.col-amount { width: 140px; font-weight: 600; }
.col-actions { width: 80px; text-align: center; }

/* Table Inner Badges */
.type-badge {
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

.type-badge.expense {
    background-color: rgba(244, 63, 94, 0.15);
    color: var(--expense-color);
}

.type-badge.income {
    background-color: rgba(16, 185, 129, 0.15);
    color: var(--income-color);
}

.table-tag {
    background-color: var(--border-color);
    color: var(--text-secondary);
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 0.7rem;
    margin-right: 4px;
    margin-bottom: 2px;
    display: inline-block;
}

.method-tag {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.btn-table-action {
    background: none;
    color: var(--text-muted);
    padding: 4px;
    border-radius: 4px;
}

.btn-table-action:hover {
    color: var(--expense-color);
    background-color: rgba(244, 63, 94, 0.1);
}

/* History Footer & Pagination */
.history-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px;
    margin-top: 10px;
}

.pagination-controls {
    display: flex;
    align-items: center;
    gap: 12px;
}

#page-indicator {
    font-size: 0.85rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.data-actions {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.file-input-label {
    cursor: pointer;
}

/* Modal Backdrops & Animation */
.modal-backdrop {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background-color: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(8px);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    transition: opacity var(--transition-normal);
}

.modal-backdrop.show {
    display: flex;
    opacity: 1;
}

.modal-content {
    width: 100%;
    max-width: 500px;
    animation: modalSlideUp var(--transition-normal) forwards;
    transform: translateY(20px);
}

@keyframes modalSlideUp {
    to {
        transform: translateY(0);
    }
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 12px;
}

.modal-header h2 {
    font-family: var(--font-heading);
    font-size: 1.2rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 8px;
}

.modal-header h2 i {
    color: var(--primary-color);
}

.close-modal-btn {
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 1.5rem;
    padding: 0;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
}

.close-modal-btn:hover {
    background-color: var(--border-color);
    color: var(--text-primary);
}

.form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: 12px;
    margin-top: 24px;
    border-top: 1px solid var(--border-color);
    padding-top: 16px;
}

.modal-footer .btn-primary {
    padding: 10px 22px;
    font-size: 0.9rem;
    font-weight: 600;
    border-radius: var(--border-radius-sm);
    border: none;
    cursor: pointer;
    transition: all var(--transition-fast);
    box-shadow: 0 4px 12px var(--primary-glow);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.modal-footer .btn-primary:hover {
    transform: translateY(-2px) scale(1.02);
    box-shadow: 0 6px 18px var(--primary-glow);
    filter: brightness(1.15);
}

.modal-footer .btn-primary:active {
    transform: translateY(0) scale(1);
}

.modal-footer .btn-secondary {
    padding: 9px 20px;
    font-size: 0.9rem;
    font-weight: 500;
    border-radius: var(--border-radius-sm);
    border: 1px solid var(--border-color);
    background-color: transparent;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.modal-footer .btn-secondary:hover {
    background-color: rgba(255, 255, 255, 0.06);
    color: var(--text-primary);
    border-color: var(--text-muted);
    transform: translateY(-1px);
}

.modal-footer .btn-secondary:active {
    transform: translateY(0);
}

/* Settle Info Box */
.settle-info-box {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    padding: 14px;
    margin-bottom: 16px;
}

.settle-info-box p {
    margin-bottom: 6px;
    font-size: 0.9rem;
}
.settle-info-box p:last-child {
    margin-bottom: 0;
}

/* Responsive Queries */
@media (max-width: 1100px) {
    .main-content {
        grid-template-columns: 1fr;
    }
    .right-panel {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 24px;
    }
}

@media (max-width: 768px) {
    .app-container {
        padding: 16px;
        gap: 16px;
    }
    .main-header {
        flex-direction: column;
        gap: 16px;
        align-items: flex-start;
        padding: 16px;
    }
    .header-controls {
        width: 100%;
        justify-content: space-between;
    }
    .right-panel {
        grid-template-columns: 1fr;
    }
    .charts-grid-container {
        grid-template-columns: 1fr;
    }
    .cards-grid {
        grid-template-columns: 1fr;
    }
    .form-grid {
        grid-template-columns: 1fr;
        gap: 0;
    }
    .history-header {
        flex-direction: column;
        align-items: stretch;
    }
    .filter-controls {
        width: 100%;
    }
    .filter-controls select,
    .search-box {
        flex: 1;
        min-width: 120px;
    }
    .search-box input {
        width: 100%;
    }
    .history-footer {
        flex-direction: column;
        align-items: stretch;
    }
    .data-actions {
        justify-content: stretch;
    }
    .data-actions button,
    .data-actions label {
        flex: 1;
        justify-content: center;
    }
}

/* Animation Utilities & Micro-interactions */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in-up {
    animation: fadeInUp 0.7s cubic-bezier(0.16, 1, 0.3, 1) both;
}

.stagger-1 { animation-delay: 0.05s; }
.stagger-2 { animation-delay: 0.12s; }
.stagger-3 { animation-delay: 0.2s; }
.stagger-4 { animation-delay: 0.28s; }

/* Bouncy Tag Badge */
.tag-badge {
    transition: all var(--transition-fast);
}
.tag-badge:hover {
    transform: scale(1.08) translateY(-1px);
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.15);
}

/* Slide-out Hover effect on table rows */
.transaction-table tbody tr {
    transition: background-color var(--transition-fast), transform var(--transition-fast);
}
.transaction-table tbody tr:hover {
    background-color: var(--bg-glass-hover);
    transform: translateX(4px);
}

/* ==========================================================================
   AISU THEME SYNC & PREMIUM VISUAL EFFECTS
   ========================================================================== */

/* Brand Aisu Pixel Glitch Style matching main webapp */
.brand-aisu {
    font-family: 'Silkscreen', monospace;
    font-weight: 700;
    letter-spacing: -0.05em;
    color: var(--text-primary);
    text-shadow: 
        0 0 5px rgba(255, 0, 128, 0.4),
        0 0 10px rgba(128, 0, 255, 0.3);
    animation: moneyPixelGlow 2.5s infinite steps(1) alternate;
    display: inline-block;
}

@keyframes moneyPixelGlow {
    0%, 100% {
        text-shadow: 
            1px 1px 0px #ff007f,
            -1px -1px 0px #00f0ff,
            0 0 8px rgba(139, 92, 246, 0.5);
    }
    33% {
        text-shadow: 
            -1px 1px 0px #ff007f,
            1px -1px 0px #00f0ff,
            0 0 12px rgba(244, 63, 94, 0.6);
    }
    66% {
        text-shadow: 
            1px -1px 0px #ff007f,
            -1px 1px 0px #00f0ff,
            0 0 10px rgba(16, 185, 129, 0.5);
    }
}

/* Back to Portfolio hover */
.btn-back-portfolio:hover {
    background: rgba(139, 92, 246, 0.22) !important;
    border-color: rgba(139, 92, 246, 0.45) !important;
    color: #DFB2FF !important;
    box-shadow: 0 0 15px rgba(139, 92, 246, 0.35);
    transform: translateY(-1.5px);
}

/* Spotlight Cursor Glow */
#cursor-glow {
    position: fixed;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(139, 92, 246, 0.05) 0%, rgba(244, 63, 94, 0.02) 40%, transparent 70%);
    top: 0;
    left: 0;
    transform: translate(-50%, -50%);
    pointer-events: none;
    z-index: 0;
    transition: opacity 0.3s ease;
}

body.light-theme #cursor-glow {
    background: radial-gradient(circle, rgba(99, 102, 241, 0.04) 0%, transparent 60%);
}

/* Glass panel background blending to match Aisu.Creator */
.kpi-card, .glass-panel, .section-container, .chart-card {
    background: rgba(9, 13, 22, 0.45) !important;
    border: 1px solid rgba(255, 255, 255, 0.05) !important;
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    transition: border-color var(--transition-normal), box-shadow var(--transition-normal), transform var(--transition-normal);
}

body.light-theme .kpi-card, 
body.light-theme .glass-panel, 
body.light-theme .section-container, 
body.light-theme .chart-card {
    background: rgba(255, 255, 255, 0.45) !important;
    border: 1px solid rgba(0, 0, 0, 0.06) !important;
}

.kpi-card:hover, .glass-panel:hover, .section-container:hover, .chart-card:hover {
    border-color: rgba(139, 92, 246, 0.25) !important;
    box-shadow: 0 12px 30px -10px rgba(139, 92, 246, 0.15) !important;
}

/* Card Mouse-Follow Spotlight Glow without extra markup */
.kpi-card, .glass-panel, .section-container, .chart-card {
    position: relative;
    overflow: hidden;
}

.kpi-card::before, .glass-panel::before, .section-container::before, .chart-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle 200px at var(--mouse-x, -999px) var(--mouse-y, -999px), rgba(139, 92, 246, 0.07), transparent 80%);
    pointer-events: none;
    z-index: 1;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.kpi-card:hover::before, .glass-panel:hover::before, .section-container:hover::before, .chart-card:hover::before {
    opacity: 1;
}

/* Ensure contents sit above the glow pseudo-element */
.kpi-card *, .glass-panel *, .section-container *, .chart-card * {
    position: relative;
    z-index: 2;
}

/* Scroll Reveal Triggers */
.kpi-card, .glass-panel, .section-container, .chart-card {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s cubic-bezier(0.16, 1, 0.3, 1), transform 0.6s cubic-bezier(0.16, 1, 0.3, 1), border-color 0.3s ease, box-shadow 0.3s ease !important;
}

.kpi-card.reveal, .glass-panel.reveal, .section-container.reveal, .chart-card.reveal {
    opacity: 1;
    transform: translateY(0);
}

/* Year select badge hover styling */
.year-select-badge:hover {
    background: rgba(139, 92, 246, 0.22) !important;
    border-color: rgba(139, 92, 246, 0.45) !important;
    box-shadow: 0 0 15px rgba(139, 92, 246, 0.25);
}