/* Reset e Base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --bg-primary: #0a0a0a;
    --bg-secondary: #141414;
    --bg-card: #1c1c1c;
    --bg-input: #252525;
    --text-primary: #ffffff;
    --text-secondary: #a0a0a0;
    --text-muted: #666666;
    --accent-primary: #00ff88;
    --accent-secondary: #00cc6a;
    --accent-dark: #009950;
    --danger-primary: #ff4757;
    --danger-secondary: #ff6b7a;
    --border-color: #2a2a2a;
    --border-hover: #3a3a3a;
    --shadow-soft: 0 4px 20px rgba(0, 0, 0, 0.3);
    --shadow-medium: 0 8px 30px rgba(0, 0, 0, 0.4);
    --shadow-strong: 0 12px 40px rgba(0, 0, 0, 0.5);
    --gradient-accent: linear-gradient(135deg, #00ff88 0%, #00cc6a 100%);
    --gradient-dark: linear-gradient(135deg, #1c1c1c 0%, #141414 100%);
    --gradient-header: linear-gradient(180deg, #1a1a1a 0%, #0a0a0a 100%);
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    background-image: 
        radial-gradient(ellipse at top right, rgba(0, 255, 136, 0.04) 0%, transparent 50%),
        radial-gradient(ellipse at bottom left, rgba(0, 255, 136, 0.03) 0%, transparent 50%),
        linear-gradient(180deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
}

.login-screen {
    position: fixed;
    inset: 0;
    z-index: 3000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    background: var(--bg-primary);
    background-image: radial-gradient(ellipse at top right, rgba(0, 255, 136, 0.12), transparent 55%),
        linear-gradient(180deg, var(--bg-secondary), var(--bg-primary));
}

.login-screen.hidden {
    display: none;
}

.login-panel {
    width: 100%;
    max-width: 430px;
    padding: 38px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    box-shadow: var(--shadow-strong);
}

.login-icon {
    width: 58px;
    height: 58px;
    margin: 0 auto 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 14px;
    background: var(--gradient-accent);
    color: var(--bg-primary);
    font-size: 1.35rem;
}

.login-panel h1 {
    color: var(--text-primary);
    font-size: 1.35rem;
    line-height: 1.3;
    text-align: center;
    letter-spacing: 1px;
}

.login-panel > p {
    margin: 8px 0 28px;
    color: var(--text-secondary);
    text-align: center;
}

.login-error {
    min-height: 24px;
    margin: -4px 0 14px !important;
    color: var(--danger-primary) !important;
    font-size: 0.9rem;
}

.app-background {
    position: relative;
    min-height: 100vh;
}

.app-background::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 80%, rgba(0, 255, 136, 0.02) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(0, 255, 136, 0.02) 0%, transparent 50%);
    pointer-events: none;
    z-index: -1;
}

/* Container */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 40px 30px;
}

/* Header */
.header {
    text-align: center;
    margin-bottom: 50px;
    padding: 50px 0;
    background: var(--gradient-header);
    border-radius: 24px;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-medium);
    position: relative;
    overflow: hidden;
}

.header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-accent);
}

.header::after {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(0, 255, 136, 0.03) 0%, transparent 70%);
    animation: pulse 4s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
        opacity: 0.5;
    }
    50% {
        transform: scale(1.1);
        opacity: 0.8;
    }
}

.header h1 {
    font-size: 2.8rem;
    font-weight: 900;
    color: var(--text-primary);
    margin-bottom: 12px;
    letter-spacing: 3px;
    text-transform: uppercase;
    background: linear-gradient(135deg, #ffffff 0%, #e0e0e0 50%, #a0a0a0 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    position: relative;
    z-index: 1;
}

.subtitle {
    color: var(--text-secondary);
    font-size: 1.1rem;
    font-weight: 500;
    letter-spacing: 2px;
    text-transform: uppercase;
    position: relative;
    z-index: 1;
}

/* Month Selector */
.month-selector {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 25px;
    margin-bottom: 40px;
    background: var(--bg-card);
    padding: 20px 30px;
    border-radius: 16px;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-soft);
    backdrop-filter: blur(10px);
}

.month-btn {
    background: var(--gradient-accent);
    color: var(--bg-primary);
    border: none;
    width: 45px;
    height: 45px;
    border-radius: 12px;
    cursor: pointer;
    font-size: 1.1rem;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 15px rgba(0, 255, 136, 0.3);
}

.month-btn:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 20px rgba(0, 255, 136, 0.4);
}

.month-btn:active {
    transform: scale(0.95);
}

.month-display {
    font-size: 1.4rem;
    font-weight: 700;
    min-width: 200px;
    text-align: center;
    color: var(--text-primary);
    letter-spacing: 1px;
    text-transform: capitalize;
}

/* Cards */
.cards-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 25px;
    margin-bottom: 40px;
}

.card {
    background: var(--gradient-dark);
    border: 1px solid var(--border-color);
    border-radius: 24px;
    padding: 35px;
    display: flex;
    align-items: center;
    gap: 25px;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-soft);
    backdrop-filter: blur(10px);
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    opacity: 0;
    transition: opacity 0.3s;
}

.card::after {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.03) 0%, transparent 70%);
    opacity: 0;
    transition: opacity 0.4s;
}

.card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-medium);
    border-color: var(--border-hover);
}

.card:hover::before {
    opacity: 1;
}

.card:hover::after {
    opacity: 1;
}

.entradas-card::before {
    background: var(--gradient-accent);
}

.gastos-card::before {
    background: linear-gradient(135deg, #ff4757 0%, #ff6b7a 100%);
}

.resultado-card::before {
    background: var(--gradient-accent);
}

.card-icon {
    width: 70px;
    height: 70px;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    flex-shrink: 0;
    position: relative;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
}

.entradas-card .card-icon {
    background: var(--gradient-accent);
    color: var(--bg-primary);
}

.gastos-card .card-icon {
    background: linear-gradient(135deg, #ff4757 0%, #ff6b7a 100%);
    color: var(--text-primary);
}

.resultado-card .card-icon {
    background: var(--gradient-accent);
    color: var(--bg-primary);
}

.card-content h3 {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 8px;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    font-weight: 600;
}

.card-value {
    font-size: 2rem;
    font-weight: 800;
    color: var(--text-primary);
    letter-spacing: -0.5px;
}

/* Action Buttons */
.action-buttons {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-bottom: 25px;
}

.action-buttons-secondary {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-bottom: 40px;
}

.btn {
    padding: 18px 32px;
    border: none;
    border-radius: 14px;
    font-size: 0.95rem;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    text-transform: uppercase;
    letter-spacing: 1px;
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-soft);
    backdrop-filter: blur(10px);
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.15), transparent);
    transition: left 0.5s;
}

.btn:hover::before {
    left: 100%;
}

.btn:active {
    transform: translateY(-1px);
}

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

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(0, 255, 136, 0.4);
}

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

.btn-secondary:hover {
    background: var(--bg-input);
    border-color: var(--border-hover);
    transform: translateY(-3px);
    box-shadow: var(--shadow-soft);
}

.btn-small {
    padding: 12px 24px;
    font-size: 0.85rem;
}

.btn-danger {
    background: linear-gradient(135deg, #ff4757 0%, #ff6b7a 100%);
    color: var(--text-primary);
}

.btn-danger:hover {
    box-shadow: 0 8px 25px rgba(255, 71, 87, 0.4);
    transform: translateY(-3px);
}

/* Section Headers */
.category-summary h3,
.fixed-expenses h3,
.transactions-section h3,
.config-section h3 {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 25px;
    letter-spacing: 1px;
    text-transform: uppercase;
    position: relative;
    padding-bottom: 15px;
}

.category-summary h3::after,
.fixed-expenses h3::after,
.transactions-section h3::after,
.config-section h3::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 60px;
    height: 3px;
    background: var(--gradient-accent);
    border-radius: 2px;
}

/* Category Summary */
.category-summary {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 30px;
    margin-bottom: 40px;
    box-shadow: var(--shadow-soft);
}

#categoryList {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 18px;
}

.category-item {
    background: var(--bg-input);
    padding: 18px 20px;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: all 0.3s;
}

.category-item:hover {
    border-color: var(--accent-primary);
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(0, 255, 136, 0.1);
}

.category-name {
    color: var(--text-primary);
    font-weight: 600;
    font-size: 0.95rem;
}

.category-value {
    color: var(--accent-primary);
    font-weight: 800;
    font-size: 1.1rem;
}

.no-data {
    color: var(--text-muted);
    text-align: center;
    padding: 30px;
    font-size: 0.95rem;
    font-style: italic;
}

/* Fixed Expenses */
.fixed-expenses {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 30px;
    margin-bottom: 40px;
    box-shadow: var(--shadow-soft);
}

.fixed-expenses .btn {
    margin-bottom: 25px;
}

#fixedExpensesList {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 18px;
}

.fixed-expense-item {
    background: var(--bg-input);
    padding: 20px;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: all 0.3s;
}

.fixed-expense-item:hover {
    border-color: var(--border-hover);
    transform: translateY(-2px);
}

.fixed-expense-info {
    flex: 1;
}

.fixed-expense-name {
    color: var(--text-primary);
    font-weight: 700;
    margin-bottom: 8px;
    font-size: 1rem;
}

.fixed-expense-details {
    color: var(--text-secondary);
    font-size: 0.85rem;
    line-height: 1.4;
}

.fixed-expense-actions {
    display: flex;
    gap: 12px;
}

.fixed-expense-actions button {
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 1.1rem;
    padding: 8px;
    transition: all 0.3s;
    border-radius: 8px;
}

.fixed-expense-actions button:hover {
    color: var(--accent-primary);
    background: rgba(0, 255, 136, 0.1);
}

.fixed-expense-actions .btn-delete:hover {
    color: var(--danger-primary);
    background: rgba(255, 71, 87, 0.1);
}

/* Filters */
.filters {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
    margin-bottom: 25px;
    align-items: center;
}

.filter-btn {
    background: var(--bg-card);
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
    padding: 12px 24px;
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.3s;
    font-weight: 600;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.filter-btn:hover {
    border-color: var(--accent-primary);
    color: var(--text-primary);
}

.filter-btn.active {
    background: var(--gradient-accent);
    color: var(--bg-primary);
    border-color: transparent;
    box-shadow: 0 4px 15px rgba(0, 255, 136, 0.3);
}

.category-filter {
    background: var(--bg-card);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    padding: 12px 20px;
    border-radius: 10px;
    font-size: 0.9rem;
    cursor: pointer;
    min-width: 220px;
    font-weight: 500;
    transition: all 0.3s;
}

.category-filter:hover {
    border-color: var(--accent-primary);
}

.category-filter:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px rgba(0, 255, 136, 0.1);
}

.category-filter option {
    background: var(--bg-card);
    color: var(--text-primary);
    padding: 10px;
}

/* Transactions Table */
.transactions-section {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 30px;
    margin-bottom: 40px;
    box-shadow: var(--shadow-soft);
}

.table-container {
    overflow-x: auto;
    border-radius: 12px;
}

.transactions-table {
    width: 100%;
    border-collapse: collapse;
}

.transactions-table th,
.transactions-table td {
    padding: 18px 20px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.transactions-table th {
    background: var(--bg-input);
    color: var(--text-secondary);
    font-weight: 700;
    text-transform: uppercase;
    font-size: 0.8rem;
    letter-spacing: 1px;
    position: sticky;
    top: 0;
}

.transactions-table td {
    color: var(--text-primary);
    font-weight: 500;
}

.transactions-table tr {
    transition: all 0.3s;
}

.transactions-table tbody tr:hover {
    background: rgba(0, 255, 136, 0.05);
}

.transaction-type {
    padding: 6px 14px;
    border-radius: 8px;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.transaction-type.entrada {
    background: rgba(0, 255, 136, 0.15);
    color: var(--accent-primary);
    border: 1px solid rgba(0, 255, 136, 0.3);
}

.transaction-type.gasto {
    background: rgba(255, 71, 87, 0.15);
    color: var(--danger-primary);
    border: 1px solid rgba(255, 71, 87, 0.3);
}

.transaction-value {
    font-weight: 800;
    font-size: 1.05rem;
}

.transaction-value.entrada {
    color: var(--accent-primary);
}

.transaction-value.gasto {
    color: var(--danger-primary);
}

.transaction-actions {
    display: flex;
    gap: 12px;
}

.transaction-actions button {
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 1rem;
    padding: 8px;
    transition: all 0.3s;
    border-radius: 8px;
}

.transaction-actions button:hover {
    color: var(--accent-primary);
    background: rgba(0, 255, 136, 0.1);
}

.transaction-actions .btn-delete:hover {
    color: var(--danger-primary);
    background: rgba(255, 71, 87, 0.1);
}

/* Configuration */
.config-section {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 30px;
    margin-bottom: 40px;
    box-shadow: var(--shadow-soft);
}

.config-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.config-form label {
    color: var(--text-primary);
    font-weight: 600;
    font-size: 0.95rem;
    letter-spacing: 0.5px;
}

.config-form input {
    background: var(--bg-input);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    padding: 15px 20px;
    border-radius: 10px;
    font-size: 1rem;
    font-weight: 500;
    transition: all 0.3s;
}

.config-form input:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px rgba(0, 255, 136, 0.1);
}

.config-form input::placeholder {
    color: var(--text-muted);
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.85);
    backdrop-filter: blur(8px);
    z-index: 1000;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.modal.active {
    display: flex;
    animation: fadeIn 0.3s ease;
}

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

.modal-content {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    width: 100%;
    max-width: 550px;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-strong);
    animation: slideUp 0.4s ease;
}

@keyframes slideUp {
    from {
        transform: translateY(30px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.modal-small {
    max-width: 420px;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 25px 30px;
    border-bottom: 1px solid var(--border-color);
    background: var(--gradient-dark);
}

.modal-header h2 {
    color: var(--text-primary);
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: 1px;
}

.modal-close {
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 1.5rem;
    padding: 8px;
    transition: all 0.3s;
    border-radius: 8px;
}

.modal-close:hover {
    color: var(--danger-primary);
    background: rgba(255, 71, 87, 0.1);
}

.modal-content form {
    padding: 30px;
}

.form-group {
    margin-bottom: 25px;
}

.form-group label {
    display: block;
    margin-bottom: 10px;
    color: var(--text-primary);
    font-weight: 600;
    font-size: 0.95rem;
    letter-spacing: 0.5px;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    background: var(--bg-input);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    padding: 15px 18px;
    border-radius: 10px;
    font-size: 1rem;
    font-family: inherit;
    font-weight: 500;
    transition: all 0.3s;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px rgba(0, 255, 136, 0.1);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--text-muted);
}

.form-group select option {
    background: var(--bg-card);
    color: var(--text-primary);
    padding: 12px;
}

.form-group textarea {
    resize: vertical;
    min-height: 100px;
}

.modal-actions {
    display: flex;
    gap: 15px;
    justify-content: flex-end;
    padding: 25px 30px;
    border-top: 1px solid var(--border-color);
    background: var(--gradient-dark);
}

.modal-content p {
    padding: 30px;
    color: var(--text-primary);
    text-align: center;
    font-size: 1.1rem;
    font-weight: 500;
}

/* Toast */
.toast {
    position: fixed;
    bottom: 40px;
    right: 40px;
    background: var(--gradient-accent);
    color: var(--bg-primary);
    padding: 18px 30px;
    border-radius: 12px;
    font-weight: 700;
    transform: translateY(100px);
    opacity: 0;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 2000;
    box-shadow: 0 8px 30px rgba(0, 255, 136, 0.4);
    font-size: 0.95rem;
    letter-spacing: 0.5px;
}

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

.toast.error {
    background: linear-gradient(135deg, #ff4757 0%, #ff6b7a 100%);
    color: var(--text-primary);
    box-shadow: 0 8px 30px rgba(255, 71, 87, 0.4);
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

::-webkit-scrollbar-track {
    background: var(--bg-secondary);
    border-radius: 10px;
}

::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 10px;
    transition: background 0.3s;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--border-hover);
}

/* Responsive */
@media (max-width: 1024px) {
    .container {
        padding: 30px 25px;
    }

    .header h1 {
        font-size: 2rem;
    }

    .cards-container {
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    }
}

@media (max-width: 768px) {
    .container {
        padding: 25px 20px;
    }

    .header {
        padding: 30px 20px;
        margin-bottom: 35px;
    }

    .header h1 {
        font-size: 1.8rem;
        letter-spacing: 1px;
    }

    .subtitle {
        font-size: 0.9rem;
    }

    .cards-container {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .card {
        padding: 25px;
    }

    .card-value {
        font-size: 1.8rem;
    }

    .action-buttons,
    .action-buttons-secondary {
        grid-template-columns: 1fr;
    }

    .month-selector {
        flex-direction: column;
        gap: 15px;
        padding: 15px 20px;
    }

    .month-display {
        min-width: auto;
        font-size: 1.2rem;
    }

    .transactions-table th,
    .transactions-table td {
        padding: 15px 12px;
        font-size: 0.9rem;
    }

    .filters {
        flex-direction: column;
        align-items: stretch;
    }

    .category-filter {
        min-width: 100%;
    }

    .modal-content {
        max-width: 100%;
        margin: 10px;
        border-radius: 16px;
    }

    .toast {
        left: 20px;
        right: 20px;
        bottom: 20px;
    }

    #categoryList,
    #fixedExpensesList {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 20px 15px;
    }

    .header h1 {
        font-size: 1.5rem;
    }

    .card {
        padding: 20px;
        gap: 20px;
    }

    .card-icon {
        width: 60px;
        height: 60px;
        font-size: 1.5rem;
    }

    .card-value {
        font-size: 1.6rem;
    }

    .btn {
        padding: 15px 25px;
        font-size: 0.85rem;
    }

    .transactions-table {
        font-size: 0.85rem;
    }

    .transactions-table th,
    .transactions-table td {
        padding: 12px 10px;
    }

    .modal-content form {
        padding: 25px 20px;
    }

    .modal-header {
        padding: 20px 25px;
    }

    .modal-header h2 {
        font-size: 1.3rem;
    }

    .login-panel {
        padding: 28px 20px;
    }
}