/* ==========================================================================
   우동골 GOLF LEDGER DESIGN SYSTEM & STYLESHEET
   Aesthetics: Luxury Golf Vibe, Glassmorphism, Tailored Emerald & Brass/Gold
   ========================================================================== */

/* --- CSS Variables & Theme Configuration --- */
:root {
    /* Fonts */
    --font-primary: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;
    --font-heading: 'Playfair Display', Georgia, serif;

    /* Theme: Deep Emerald Dark Mode (Default) */
    --bg-base: #06130d;
    --bg-surface: rgba(14, 38, 28, 0.7);
    --bg-surface-opaque: #0e261c;
    --bg-glow-1: rgba(34, 139, 87, 0.2);
    --bg-glow-2: rgba(212, 175, 55, 0.1);
    
    --color-primary: #d4af37; /* Brass Gold */
    --color-primary-hover: #e5c453;
    --color-accent: #2e8b57; /* Sea Green */
    --color-accent-hover: #3cb371;
    
    --text-main: #f3f6f4;
    --text-muted: #9bb0a5;
    --text-inverse: #06130d;

    --border-color: rgba(212, 175, 55, 0.2);
    --border-color-focus: rgba(212, 175, 55, 0.5);
    
    --success: #10b981; /* Emerald Green */
    --success-bg: rgba(16, 185, 129, 0.15);
    --danger: #f43f5e; /* Rose Red */
    --danger-bg: rgba(244, 63, 94, 0.15);
    
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.2);
    --shadow-md: 0 8px 32px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 12px 48px rgba(0, 0, 0, 0.4);
    
    --glass-blur: blur(12px);
    --transition-speed: 0.3s;
}

/* Light Theme overrides */
body.light-theme {
    --bg-base: #f3f6f4;
    --bg-surface: rgba(255, 255, 255, 0.75);
    --bg-surface-opaque: #ffffff;
    --bg-glow-1: rgba(46, 139, 87, 0.08);
    --bg-glow-2: rgba(212, 175, 55, 0.05);
    
    --color-primary: #b08d23; /* Classic Dark Gold */
    --color-primary-hover: #c49e2b;
    --color-accent: #1e6b3f; /* Deep Golf Green */
    --color-accent-hover: #2a8a54;
    
    --text-main: #182c23;
    --text-muted: #5e7368;
    --text-inverse: #ffffff;

    --border-color: rgba(176, 141, 35, 0.25);
    --border-color-focus: rgba(176, 141, 35, 0.6);
    
    --success: #10b981;
    --success-bg: rgba(16, 185, 129, 0.1);
    --danger: #e11d48;
    --danger-bg: rgba(225, 29, 72, 0.08);
    
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 8px 24px rgba(24, 44, 35, 0.08);
    --shadow-lg: 0 16px 40px rgba(24, 44, 35, 0.12);
}

/* --- Core Reset & Utilities --- */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

.hidden {
    display: none !important;
}

/* Background Glow Effects */
.bg-glow {
    position: fixed;
    width: 600px;
    height: 600px;
    border-radius: 50%;
    filter: blur(140px);
    z-index: -1;
    pointer-events: none;
    transition: background var(--transition-speed);
}

.bg-glow-1 {
    top: -10%;
    left: -10%;
    background: var(--bg-glow-1);
}

.bg-glow-2 {
    bottom: -10%;
    right: -10%;
    background: var(--bg-glow-2);
}

/* --- 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(--border-color-focus);
}

/* --- Typography --- */
h1, h2, h3, h4 {
    font-family: var(--font-primary);
    font-weight: 700;
    letter-spacing: -0.02em;
}

p {
    font-weight: 400;
}

/* --- Buttons System --- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 20px;
    border-radius: 8px;
    font-family: var(--font-primary);
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid transparent;
}

.btn-primary {
    background-color: var(--color-primary);
    color: var(--text-inverse);
}
.btn-primary:hover {
    background-color: var(--color-primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(212, 175, 55, 0.3);
}

.btn-accent {
    background-color: var(--color-accent);
    color: #ffffff;
}
.btn-accent:hover {
    background-color: var(--color-accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(46, 139, 87, 0.3);
}

.btn-secondary {
    background-color: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-main);
}
.btn-secondary:hover {
    background-color: rgba(255, 255, 255, 0.05);
    border-color: var(--border-color-focus);
    transform: translateY(-1px);
}

.btn-block {
    display: flex;
    width: 100%;
}

.btn-icon {
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-main);
    width: 42px;
    height: 42px;
    border-radius: 8px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.25s ease;
}
.btn-icon:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: var(--border-color-focus);
    color: var(--color-primary);
}

.btn-icon-only {
    background: transparent;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 6px;
    border-radius: 4px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
}
.btn-icon-only:hover {
    color: var(--color-primary);
    background: rgba(255, 255, 255, 0.05);
}

.btn-link {
    background: none;
    border: none;
    color: var(--color-primary);
    font-family: var(--font-primary);
    font-weight: 600;
    cursor: pointer;
    text-decoration: underline;
    transition: color 0.2s ease;
}
.btn-link:hover {
    color: var(--color-primary-hover);
}

/* --- Forms & Inputs --- */
.form-group {
    margin-bottom: 20px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-group label {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-muted);
    letter-spacing: 0.03em;
    text-transform: uppercase;
}

.form-group label i {
    margin-right: 4px;
    color: var(--color-primary);
}

.form-group input[type="text"],
.form-group input[type="password"],
.form-group input[type="number"],
.form-group input[type="date"],
.form-group select {
    width: 100%;
    padding: 12px 16px;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    background-color: rgba(255, 255, 255, 0.04);
    color: var(--text-main);
    font-family: var(--font-primary);
    font-size: 0.95rem;
    transition: all 0.25s ease;
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--border-color-focus);
    background-color: rgba(255, 255, 255, 0.08);
    box-shadow: 0 0 0 3px rgba(212, 175, 55, 0.15);
}

select option {
    background-color: var(--bg-surface-opaque);
    color: var(--text-main);
}

/* --- Radio Toggle Button Group --- */
.radio-toggle-group {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    margin-top: 4px;
}

.radio-toggle-group input[type="radio"] {
    display: none;
}

.radio-label {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    background-color: rgba(255, 255, 255, 0.02);
    cursor: pointer;
    font-weight: 600;
    transition: all 0.25s ease;
    text-align: center;
}

.radio-toggle-group input[type="radio"]:checked + .radio-label.income-label {
    background-color: var(--success-bg);
    border-color: var(--success);
    color: var(--success);
    box-shadow: 0 0 8px rgba(16, 185, 129, 0.2);
}

.radio-toggle-group input[type="radio"]:checked + .radio-label.expense-label {
    background-color: var(--danger-bg);
    border-color: var(--danger);
    color: var(--danger);
    box-shadow: 0 0 8px rgba(244, 63, 94, 0.2);
}

/* --- Auth Pages (Login / Register Card) --- */
.auth-container {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: 20px;
}

.auth-card {
    background: var(--bg-surface);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--border-color);
    padding: 40px;
    border-radius: 20px;
    width: 100%;
    max-width: 440px;
    box-shadow: var(--shadow-lg);
    animation: fadeInUp 0.5s ease-out;
}

.auth-header {
    text-align: center;
    margin-bottom: 30px;
}

.auth-header .golf-logo {
    display: inline-flex;
    width: 120px;
    height: 120px;
    background: #ffffff; /* White background to match the white logo background */
    border: 2px solid var(--color-primary);
    border-radius: 50%;
    align-items: center;
    justify-content: center;
    margin-bottom: 16px;
    box-shadow: 0 0 20px rgba(212, 175, 55, 0.25);
    overflow: hidden; /* Circular frame crop */
}

.auth-header .golf-logo img {
    width: 100%;
    height: 100%;
    object-fit: contain; /* Scale image down to fit fully, keeping aspect ratio */
    padding: 8px; /* Give some breathing room inside the circle */
}

.auth-header h2 {
    font-size: 1.6rem;
    margin-bottom: 8px;
    color: var(--text-main);
}

.auth-header p {
    color: var(--text-muted);
    font-size: 0.9rem;
}

.auth-footer {
    text-align: center;
    margin-top: 24px;
    font-size: 0.9rem;
    color: var(--text-muted);
}

.error-msg {
    color: var(--danger);
    background: var(--danger-bg);
    padding: 10px 14px;
    border-radius: 6px;
    font-size: 0.85rem;
    font-weight: 500;
    margin-bottom: 20px;
    border-left: 3px solid var(--danger);
    display: none;
}

/* --- Main Layout: App Dashboard --- */
.app-container {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* Navigation Bar */
.navbar {
    background: var(--bg-surface);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border-bottom: 1px solid var(--border-color);
    padding: 16px 40px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: sticky;
    top: 0;
    z-index: 100;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 12px;
}

.nav-brand .nav-logo {
    display: inline-flex;
    width: 38px;
    height: 38px;
    background: #ffffff; /* White background to match the white logo background */
    border: 1px solid var(--border-color);
    border-radius: 50%;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    box-shadow: 0 0 10px rgba(212, 175, 55, 0.15);
}

.nav-brand .nav-logo img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    padding: 3px; /* Subtle padding for navigation bar logo */
}

.nav-brand .title {
    font-family: var(--font-primary);
    font-weight: 800;
    font-size: 1.3rem;
    letter-spacing: -0.01em;
}

.nav-brand .accent-text {
    color: var(--color-primary);
    font-family: var(--font-heading);
    font-style: italic;
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 20px;
}

.user-profile {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    border-radius: 50px;
    font-weight: 600;
    font-size: 0.9rem;
}

.user-profile i {
    color: var(--color-primary);
}

/* Dashboard Content Grid */
.dashboard-content {
    flex: 1;
    padding: 40px;
    max-width: 1440px;
    width: 100%;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 32px;
    animation: fadeIn 0.4s ease-out;
}

/* Summary Cards Panel */
.summary-section {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
}

.summary-card {
    background: var(--bg-surface);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--border-color);
    padding: 24px 30px;
    border-radius: 16px;
    display: flex;
    align-items: center;
    gap: 20px;
    box-shadow: var(--shadow-sm);
    transition: transform var(--transition-speed), box-shadow var(--transition-speed);
}

.summary-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.summary-card .card-icon {
    width: 56px;
    height: 56px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
}

.summary-card .card-info h3 {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 4px;
}

.summary-card .card-info .amount {
    font-size: 1.7rem;
    font-weight: 800;
    color: var(--text-main);
    letter-spacing: -0.01em;
}

/* Specific Card Styling */
.balance-card {
    border-color: rgba(212, 175, 55, 0.4);
    box-shadow: 0 4px 20px rgba(212, 175, 55, 0.05);
}
.balance-card .card-icon {
    background: rgba(212, 175, 55, 0.15);
    color: var(--color-primary);
    border: 1px solid rgba(212, 175, 55, 0.3);
}

.income-card .card-icon {
    background: var(--success-bg);
    color: var(--success);
    border: 1px solid rgba(16, 185, 129, 0.2);
}

.expense-card .card-icon {
    background: var(--danger-bg);
    color: var(--danger);
    border: 1px solid rgba(244, 63, 94, 0.2);
}

/* Split Main Grid (Ledger vs Analytics) */
.main-grid {
    display: grid;
    grid-template-columns: 1.8fr 1fr;
    gap: 32px;
    align-items: start;
}

@media (max-width: 1100px) {
    .main-grid {
        grid-template-columns: 1fr;
    }
}

/* Ledger List Panel */
.ledger-section {
    background: var(--bg-surface);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 30px;
    box-shadow: var(--shadow-sm);
}

.section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 24px;
}

#toggle-filter-btn.active {
    background-color: var(--success-bg) !important;
    border-color: var(--success) !important;
    color: var(--success) !important;
    box-shadow: 0 0 8px rgba(16, 185, 129, 0.2);
}

.section-header .header-title h2 {
    font-size: 1.3rem;
    color: var(--text-main);
    display: flex;
    align-items: center;
    gap: 8px;
}

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

.section-header .header-title p {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-top: 2px;
}

/* Search & Filter Bar Custom Layout */
.filter-bar {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-color);
    padding: 16px;
    border-radius: 12px;
    margin-bottom: 24px;
    align-items: flex-end;
}

.filter-input-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.filter-input-group label {
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.02em;
}

.filter-input-group input,
.filter-input-group select {
    padding: 8px 12px;
    border-radius: 6px;
    border: 1px solid var(--border-color);
    background: rgba(255, 255, 255, 0.03);
    color: var(--text-main);
    font-family: var(--font-primary);
    font-size: 0.85rem;
    outline: none;
    transition: border-color 0.2s;
}

.filter-input-group input:focus,
.filter-input-group select:focus {
    border-color: var(--border-color-focus);
}

.search-group {
    flex: 1.5;
    min-width: 180px;
}

.search-input-wrapper {
    position: relative;
    width: 100%;
    display: flex;
    align-items: center;
    gap: 8px;
}

.search-input-wrapper input {
    padding-left: 12px !important; /* Restored left padding after removing search icon to align perfectly with other fields */
    flex: 1;
    width: 100%;
}

#search-submit-btn,
#search-submit-btn:focus,
#search-submit-btn:active {
    padding: 8px 16px;
    height: 38px;
    font-size: 0.85rem;
    border-radius: 6px;
    flex-shrink: 0;
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    background-color: var(--color-primary) !important; /* Brass Gold background locked */
    color: #0c1c15 !important; /* Double Lock-up: Strict high-contrast text color locked even for normal state */
    border: 1px solid var(--color-primary) !important;
    box-shadow: 0 2px 6px rgba(212, 175, 55, 0.25) !important;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
}

#search-submit-btn:hover {
    background-color: var(--color-primary-hover) !important;
    color: #0c1c15 !important; /* Strict color locked on hover */
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(212, 175, 55, 0.45) !important;
}

#search-submit-btn i,
#search-submit-btn:focus i,
#search-submit-btn:active i,
#search-submit-btn:hover i {
    font-family: "Font Awesome 6 Free", "Font Awesome 6 Brands", "FontAwesome", sans-serif !important;
    font-weight: 900 !important; /* Force Solid weight for FontAwesome icon matching */
    color: #0c1c15 !important; /* Hardcoded deep emerald-black to prevent contrast issues on gold circle */
}

.select-group {
    flex: 1;
    min-width: 110px;
}

.date-group-container {
    flex: 2;
    min-width: 250px;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.date-inputs-row {
    display: flex;
    align-items: center;
    gap: 8px;
    width: 100%;
}

.date-inputs-row input {
    width: 100%;
}

.date-inputs-row span {
    color: var(--text-muted);
    font-size: 0.9rem;
    flex-shrink: 0;
}

#reset-filters-btn {
    height: 38px;
    width: 38px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--border-color);
    background: rgba(255, 255, 255, 0.03);
    border-radius: 6px;
    color: var(--text-muted);
    cursor: pointer;
    transition: all 0.2s ease;
    flex-shrink: 0;
}

#reset-filters-btn:hover {
    color: var(--color-primary);
    border-color: var(--border-color-focus);
    background: rgba(255, 255, 255, 0.06);
}

/* Ledger List Table Styling */
.table-container {
    overflow-x: auto;
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

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

.ledger-table th,
.ledger-table td {
    padding: 16px 20px;
    border-bottom: 1px solid var(--border-color);
}

.ledger-table th {
    background: rgba(255, 255, 255, 0.02);
    font-weight: 700;
    color: var(--text-muted);
    text-transform: uppercase;
    font-size: 0.8rem;
    letter-spacing: 0.05em;
    user-select: none;
}

.ledger-table th i {
    margin-left: 4px;
    color: var(--color-primary);
}

.ledger-table tbody tr {
    transition: background-color 0.2s ease;
}

.ledger-table tbody tr:hover {
    background: rgba(255, 255, 255, 0.02);
}

.ledger-table tbody tr:last-child td {
    border-bottom: none;
}

/* Text Badges & Elements */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 10px;
    border-radius: 50px;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

.badge-income {
    background: var(--success-bg);
    color: var(--success);
    border: 1px solid rgba(16, 185, 129, 0.2);
}

.badge-expense {
    background: var(--danger-bg);
    color: var(--danger);
    border: 1px solid rgba(244, 63, 94, 0.2);
}

.txt-income {
    color: var(--success) !important;
    font-weight: 700;
}

.txt-expense {
    color: var(--danger) !important;
    font-weight: 700;
}

.writer-tag {
    font-weight: 600;
    color: var(--text-main);
    display: flex;
    align-items: center;
    gap: 6px;
}

.writer-tag::before {
    content: '';
    display: inline-block;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background-color: var(--color-primary);
}

.description-cell {
    color: var(--text-main);
    word-break: break-all;
}

.no-data {
    text-align: center;
    padding: 40px !important;
    color: var(--text-muted);
    font-style: italic;
}

/* --- Right Column: Analytics Cards --- */
.analytics-section {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.analytics-card {
    background: var(--bg-surface);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 24px;
    box-shadow: var(--shadow-sm);
}

.analytics-card h3 {
    font-size: 1.05rem;
    color: var(--text-main);
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    gap: 8px;
}

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

.chart-container {
    position: relative;
    height: 260px;
    width: 100%;
}

.welcome-widget {
    background: linear-gradient(135deg, rgba(14, 38, 28, 0.8), rgba(6, 19, 13, 0.9));
    border-color: rgba(212, 175, 55, 0.25);
}

/* Light theme override for welcome widget to prevent dark contrast issues */
body.light-theme .welcome-widget {
    background: linear-gradient(135deg, rgba(234, 242, 235, 0.9), rgba(255, 255, 255, 0.95)) !important;
    border-color: rgba(176, 141, 35, 0.25) !important;
    box-shadow: var(--shadow-md) !important;
}

body.light-theme .welcome-widget h3 {
    color: #1e6b3f !important;
}

body.light-theme .welcome-widget p,
body.light-theme .welcome-widget ul li {
    color: #5e7368 !important;
}

.welcome-widget p {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: 16px;
}

.welcome-widget ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.welcome-widget ul li {
    font-size: 0.85rem;
    display: flex;
    align-items: center;
    gap: 8px;
}

.welcome-widget ul li i {
    color: var(--color-primary);
    font-size: 0.8rem;
}

/* --- Modals Systems (Add, Edit & Auth overlays) --- */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(6, 19, 13, 0.7);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    transition: opacity 0.3s ease;
}

.modal-card {
    background: var(--bg-surface-opaque);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-lg);
    border-radius: 16px;
    width: 100%;
    max-width: 480px;
    padding: 30px;
    animation: zoomIn 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 24px;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 12px;
}

.modal-header h3 {
    font-size: 1.2rem;
    color: var(--text-main);
    display: flex;
    align-items: center;
    gap: 8px;
}

.modal-header h3 i {
    color: var(--color-primary);
}

.btn-close {
    background: none;
    border: none;
    font-size: 2rem;
    color: var(--text-muted);
    cursor: pointer;
    line-height: 1;
    transition: color 0.2s;
}

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

/* --- Receipt Upload Styles --- */
.upload-dropzone {
    border: 2px dashed var(--border-color);
    border-radius: 8px;
    padding: 20px;
    text-align: center;
    background: rgba(255, 255, 255, 0.01);
    cursor: pointer;
    transition: all 0.25s ease;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.upload-dropzone:hover {
    border-color: var(--color-primary);
    background: rgba(212, 175, 55, 0.04);
}

.upload-dropzone i {
    font-size: 1.8rem;
    color: var(--color-primary);
    transition: transform 0.2s ease;
}

.upload-dropzone:hover i {
    transform: translateY(-2px);
}

.upload-dropzone p {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.receipt-preview-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 8px;
    margin-top: 12px;
}

.preview-thumb-item {
    position: relative;
    border-radius: 8px;
    overflow: hidden;
    border: 1px solid var(--border-color);
    aspect-ratio: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 0, 0, 0.2);
}

.preview-thumb-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.btn-remove-thumb {
    position: absolute;
    top: 4px;
    right: 4px;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: rgba(244, 63, 94, 0.9);
    border: none;
    color: white;
    font-size: 0.9rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    line-height: 1;
    transition: background 0.2s, transform 0.2s;
    z-index: 5;
}

.btn-remove-thumb:hover {
    background: var(--danger);
    transform: scale(1.1);
}

/* Carousel Control Styles */
.carousel-nav-btn {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: rgba(6, 19, 13, 0.6) !important;
    border: 1px solid rgba(212, 175, 55, 0.3) !important;
    color: var(--color-primary) !important;
    cursor: pointer;
    transition: all 0.2s ease-out;
    display: flex;
    align-items: center;
    justify-content: center;
}

.carousel-nav-btn:hover {
    background: var(--color-primary) !important;
    color: var(--text-inverse) !important;
    border-color: var(--color-primary) !important;
    transform: scale(1.1);
    box-shadow: 0 0 10px rgba(212, 175, 55, 0.4);
}

.carousel-nav-btn:active {
    transform: scale(0.9);
}

.carousel-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--text-muted);
    opacity: 0.4;
    cursor: pointer;
    transition: all 0.25s ease-out;
}

.carousel-dot.active {
    background: var(--color-primary);
    opacity: 1;
    width: 20px;
    border-radius: 4px;
}

/* Receipt Badge inside Ledger List */
.badge-receipt {
    background: rgba(212, 175, 55, 0.12) !important;
    color: var(--color-primary) !important;
    border: 1px solid rgba(212, 175, 55, 0.25) !important;
    cursor: pointer;
    transition: all 0.2s ease;
}

.badge-receipt:hover {
    background: var(--color-primary) !important;
    color: var(--text-inverse) !important;
    box-shadow: 0 2px 6px rgba(212, 175, 55, 0.25);
    transform: translateY(-1px);
}

.modal-actions {
    display: flex;
    justify-content: flex-end;
    gap: 12px;
    margin-top: 30px;
}

/* --- Responsive Adaptations --- */
/* --- Responsive Adaptations (Mobile Native UX Redesign) --- */
@media (max-width: 768px) {
    .navbar {
        padding: 12px 16px;
    }
    
    .nav-brand .title {
        font-size: 1.1rem;
    }
    
    .nav-actions {
        gap: 8px;
    }
    
    .user-profile {
        padding: 6px 12px;
        font-size: 0.8rem;
    }
    
    .dashboard-content {
        padding: 16px 12px;
        gap: 16px;
    }
    
    /* Summary Section: Prominent Balance + Dual Income/Expense Cards */
    .summary-section {
        grid-template-columns: 1fr 1fr;
        gap: 12px;
    }
    
    .summary-card.balance-card {
        grid-column: 1 / 3;
        padding: 16px 20px;
    }
    
    .summary-card.income-card,
    .summary-card.expense-card {
        padding: 12px 14px;
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
        justify-content: center;
    }
    
    .summary-card .card-icon {
        width: 42px;
        height: 42px;
        font-size: 1.3rem;
        border-radius: 8px;
    }
    
    .summary-card .card-info h3 {
        font-size: 0.75rem;
    }
    
    .summary-card .card-info .amount {
        font-size: 1.3rem;
    }
    
    .ledger-section {
        padding: 16px;
    }
    
    .filter-bar {
        padding: 12px;
        flex-direction: column;
        align-items: stretch;
        gap: 12px;
    }
    
    .search-group {
        width: 100%;
    }
    
    .date-inputs-row {
        flex-direction: column;
        align-items: stretch;
        gap: 6px;
    }
    
    .date-inputs-row span {
        text-align: center;
        margin: 2px 0;
    }
    
    #reset-filters-btn {
        width: 100%;
        margin-top: 4px;
    }
    
    /* MAGIC MOBILE CARD RE-FLOW: Converts horizontal table layout into native stackable cards */
    .ledger-table, 
    .ledger-table thead, 
    .ledger-table tbody, 
    .ledger-table tr, 
    .ledger-table td {
        display: block;
        width: 100%;
    }
    
    .ledger-table thead {
        display: none; /* Hide header row on small screens */
    }
    
    .ledger-table tbody tr {
        background: rgba(255, 255, 255, 0.015);
        border: 1px solid var(--border-color);
        border-radius: 12px;
        padding: 16px;
        margin-bottom: 12px;
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 10px;
        box-shadow: var(--shadow-sm);
        position: relative;
    }
    
    .ledger-table tbody tr td {
        padding: 0 !important;
        border: none !important;
    }
    
    /* Date: Top Left */
    .ledger-table tbody tr td:nth-child(1) {
        grid-column: 1 / 2;
        font-size: 0.8rem;
        color: var(--text-muted);
        align-self: center;
    }
    
    /* Writer: Top Right */
    .ledger-table tbody tr td:nth-child(2) {
        grid-column: 2 / 3;
        justify-self: end;
        align-self: center;
    }
    
    /* Type Badge: Middle Left */
    .ledger-table tbody tr td:nth-child(3) {
        grid-column: 1 / 2;
        align-self: center;
    }
    
    /* Amount: Middle Right */
    .ledger-table tbody tr td:nth-child(4) {
        grid-column: 2 / 3;
        justify-self: end;
        align-self: center;
    }
    
    .ledger-table tbody tr td:nth-child(4) span {
        font-size: 1.1rem;
        font-weight: 800;
    }
    
    /* Description: Bottom Full-Width split by dotted border */
    .ledger-table tbody tr td:nth-child(5) {
        grid-column: 1 / 3;
        border-top: 1px dashed var(--border-color) !important;
        padding-top: 10px !important;
        margin-top: 4px;
        font-size: 0.95rem;
        line-height: 1.4;
        color: var(--text-main);
    }
    
    /* Action Buttons: Align Bottom Right */
    .ledger-table tbody tr td:nth-child(6) {
        grid-column: 1 / 3;
        justify-self: end;
        margin-top: 8px;
        display: flex;
        align-items: center;
        gap: 12px;
    }
    
    /* Mobile Native "Bottom Sheet" Modal Overlay Adjustment */
    .modal-overlay {
        align-items: flex-end;
        padding: 0;
    }
    
    .modal-card {
        border-radius: 24px 24px 0 0;
        max-width: 100%;
        width: 100%;
        margin-bottom: 0;
        animation: slideUp 0.35s cubic-bezier(0.25, 1, 0.5, 1);
        padding: 24px 20px 36px 20px; /* Safe-area padding for modern mobile home indicators */
        border-bottom: none;
        border-left: none;
        border-right: none;
    }

    /* 모바일 네비게이션 고도화: 텍스트 제거 및 아이콘화 */
    .nav-brand .title .accent-text {
        display: none !important;
    }
    
    .nav-actions {
        gap: 8px !important;
    }
    
    .nav-actions button span {
        display: none !important;
    }
    
    .nav-actions button {
        width: 38px !important;
        height: 38px !important;
        border-radius: 50% !important;
        padding: 0 !important;
        display: inline-flex !important;
        align-items: center;
        justify-content: center;
    }
    
    .nav-actions button i {
        margin: 0 !important;
        font-size: 1rem !important;
    }
    
    .user-profile {
        width: 38px !important;
        height: 38px !important;
        border-radius: 50% !important;
        padding: 0 !important;
        display: inline-flex !important;
        align-items: center;
        justify-content: center;
        background: rgba(212, 175, 55, 0.12) !important;
        border-color: rgba(212, 175, 55, 0.25) !important;
    }
    
    .user-profile span {
        display: none !important;
    }
    
    .user-profile i {
        font-size: 1rem !important;
        margin: 0 !important;
    }

    /* 모바일 가계부 카드 액션 버튼(수정/삭제) 고도화 */
    .ledger-table tbody tr td:nth-child(6) {
        grid-column: 1 / 3 !important;
        justify-self: end !important;
        margin-top: 10px !important;
        width: 100% !important;
        display: flex !important;
        justify-content: flex-end !important;
        border-top: 1px dashed var(--border-color) !important;
        padding-top: 10px !important;
    }

    .ledger-table tbody tr td:nth-child(6) .btn-icon-only {
        width: 44px !important;
        height: 36px !important;
        border-radius: 8px !important;
        border: 1px solid var(--border-color) !important;
        background: rgba(255, 255, 255, 0.03) !important;
        display: inline-flex !important;
        align-items: center;
        justify-content: center;
        transition: background 0.2s !important;
    }

    .ledger-table tbody tr td:nth-child(6) .btn-icon-only:active {
        background: rgba(255, 255, 255, 0.1) !important;
    }

    /* 모바일 검색 제출 돋보기 버튼 최적화 */
    #search-submit-btn span {
        display: none !important;
    }
    #search-submit-btn,
    #search-submit-btn:focus,
    #search-submit-btn:active {
        width: 38px !important;
        height: 38px !important;
        padding: 0 !important;
        display: inline-flex !important;
        align-items: center;
        justify-content: center;
        border-radius: 50% !important;
        background-color: var(--color-primary) !important; /* Keep gold circle locked on mobile */
        color: #0c1c15 !important; /* Lock the foreground color even for normal state on mobile */
        border: 1px solid var(--color-primary) !important;
        box-shadow: 0 2px 6px rgba(212, 175, 55, 0.25) !important;
    }
    #search-submit-btn:hover {
        background-color: var(--color-primary-hover) !important;
        color: #0c1c15 !important;
    }
    #search-submit-btn i,
    #search-submit-btn:focus i,
    #search-submit-btn:active i,
    #search-submit-btn:hover i {
        margin: 0 !important;
        font-size: 1.2rem !important;
        font-family: "Font Awesome 6 Free", "Font Awesome 6 Brands", "FontAwesome", sans-serif !important;
        font-weight: 900 !important; /* Force Solid weight on mobile */
        color: #0c1c15 !important; /* Strict solid dark emerald-black on mobile */
        display: inline-block !important;
        visibility: visible !important;
        opacity: 1 !important;
    }

    /* 모바일 가계부 섹션 헤더 & 버튼 확장 */
    .section-header {
        flex-direction: column !important;
        align-items: flex-start !important;
        gap: 12px !important;
    }
    .section-header .header-actions {
        width: 100% !important;
        display: flex !important;
        justify-content: flex-end !important;
        gap: 8px !important;
    }
    .section-header .header-actions button {
        flex: 1 !important;
    }
}

/* --- KEYFRAME ANIMATIONS --- */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes zoomIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes slideUp {
    from {
        transform: translateY(100%);
    }
    to {
        transform: translateY(0);
    }
}