/* style.css */

/* Color Variables */
:root {
    --primary-color: #3b82f6; /* Soft Blue */
    --secondary-color: #6b7280; /* Grey */
    --accent-color: #10b981; /* Emerald Green */
    --background-light: #f3f4f6; /* Light Grey */
    --card-background-light: #ffffff; /* White */
    --text-color: #1f2937; /* Dark Grey */
    --border-color: #e5e7eb; /* Light Grey Border */
    --danger-color: #ef4444; /* Soft Red */
    --success-color: #10b981; /* Emerald Green */
    --warning-color: #f59e0b; /* Amber */

    /* Dark Mode Variables */
    --background-dark: #111827; /* Very Dark Blue */
    --card-background-dark: #1f2937; /* Dark Grey */
    --text-color-dark: #f3f4f6; /* Light Grey */
    --border-color-dark: #374151; /* Grey */
}

/* Dark Mode specific styles */
body.dark-mode {
    --background-light: var(--background-dark);
    --card-background-light: var(--card-background-dark);
    --text-color: var(--text-color-dark);
    --border-color: var(--border-color-dark);
}

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

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--background-light);
    color: var(--text-color);
    line-height: 1.6;
    transition: background-color 0.3s ease, color 0.3s ease;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1.5rem;
}

/* Header */
.header {
    background-color: var(--card-background-light);
    background-image: linear-gradient(to right, rgba(59, 130, 246, 0.1), rgba(255, 255, 255, 0));
    padding: 1rem 0;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
    position: sticky;
    top: 0;
    z-index: 1000;
    transition: background-color 0.3s ease, box-shadow 0.3s ease;
}

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

.logo {
    color: var(--primary-color);
    font-size: 1.75rem;
    font-weight: 600;
}

.nav ul {
    display: flex;
    list-style: none;
    gap: 1.5rem;
}

.nav-link {
    text-decoration: none;
    color: var(--secondary-color);
    font-weight: 500;
    padding: 0.5rem 0;
    position: relative;
    transition: color 0.3s ease;
}

.nav-link::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: -2px;
    width: 0;
    height: 2px;
    background-color: var(--primary-color);
    transition: width 0.3s ease;
}

.nav-link:hover, .nav-link.active {
    color: var(--primary-color);
}

.nav-link.active::after {
    width: 100%;
}

.menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--text-color);
    cursor: pointer;
}

/* Sections */
.section {
    display: none;
    padding: 2rem 0;
}

.section.active {
    display: block;
}

/* Cards */
.card {
    background-color: var(--card-background-light);
    border-radius: 1rem;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    padding: 2rem;
    margin-bottom: 2rem;
    transition: box-shadow 0.3s ease, transform 0.3s ease;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 15px rgba(0, 0, 0, 0.05);
}

.card h2 {
    color: var(--text-color);
    margin-bottom: 1.5rem;
    font-weight: 600;
    font-size: 1.5rem;
}

/* Dashboard Grid */
.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

/* Form Styles */
.form-group {
    margin-bottom: 1.5rem;
}

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

.form-group input[type="text"],
.form-group input[type="number"],
.form-group input[type="date"],
.form-group select {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 1px solid var(--border-color);
    border-radius: 0.5rem;
    font-family: 'Inter', sans-serif;
    font-size: 1rem;
    color: var(--text-color);
    background-color: var(--background-light);
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.form-group input:focus,
.form-group select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.2);
    outline: none;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 0.5rem;
    cursor: pointer;
    font-size: 1rem;
    font-weight: 500;
    transition: background-color 0.3s ease, transform 0.2s ease, box-shadow 0.3s ease;
    text-decoration: none;
    gap: 0.5rem;
}

.btn i {
    font-size: 1.1rem;
}

.primary-btn {
    background-color: var(--primary-color);
    color: #ffffff;
    box-shadow: 0 2px 4px rgba(59, 130, 246, 0.2);
}

.primary-btn:hover {
    background-color: #2563eb;
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(59, 130, 246, 0.3);
}

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

.secondary-btn:hover {
    background-color: var(--primary-color);
    color: #ffffff;
    transform: translateY(-2px);
}

.danger-btn {
    background-color: var(--danger-color);
    color: #ffffff;
}

.danger-btn:hover {
    background-color: #dc2626;
    transform: translateY(-2px);
}

/* Summary Section */
.summary-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
    border-bottom: 1px solid var(--border-color);
}

.summary-item:last-child {
    border-bottom: none;
}

.amount-display {
    font-weight: 600;
    font-size: 1.1rem;
    color: var(--primary-color);
}

/* Insights Section */
.insights-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.insight-item h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.progress-bar-container {
    width: 100%;
    background-color: var(--border-color);
    border-radius: 9999px;
    height: 1rem;
    margin-top: 1rem;
    overflow: hidden;
}

.progress-bar {
    width: 0%;
    height: 100%;
    background-color: var(--primary-color);
    border-radius: 9999px;
    transition: width 1s ease-in-out;
}

.category-breakdown div {
    display: flex;
    justify-content: space-between;
    padding: 0.75rem 0;
    font-size: 1rem;
    border-bottom: 1px dashed var(--border-color);
}

.category-breakdown div:last-child {
    border-bottom: none;
}

/* Chart */
.chart-container {
    position: relative;
    height: 350px;
    width: 100%;
}

.chart-message {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    color: var(--secondary-color);
    font-style: italic;
}

/* Expense Table */
.expense-table-container {
    overflow-x: auto;
    margin-top: 2rem;
}

.expense-table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 2rem;
}

.expense-table th,
.expense-table td {
    text-align: left;
    padding: 1rem 1.25rem;
    border-bottom: 1px solid var(--border-color);
}

.expense-table th {
    background-color: var(--background-light);
    color: var(--secondary-color);
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.875rem;
}

.expense-table tbody tr:hover {
    background-color: #f9fafb;
}

body.dark-mode .expense-table tbody tr:hover {
    background-color: #2a374a;
}

.expense-table .delete-btn {
    background: none;
    border: none;
    color: var(--danger-color);
    font-size: 1.2rem;
    cursor: pointer;
    transition: color 0.2s ease, transform 0.2s ease;
}

.expense-table .delete-btn:hover {
    color: #dc2626;
    transform: scale(1.1);
}

/* Footer */
.footer {
    background-color: var(--card-background-light);
    padding: 1.5rem 0;
    text-align: center;
    margin-top: 2rem;
    border-top: 1px solid var(--border-color);
}

.footer p {
    color: var(--secondary-color);
}

/* Filter Controls */
.filter-controls {
    display: flex;
    flex-wrap: wrap;
    gap: 1.5rem;
    margin-bottom: 2rem;
    align-items: flex-end;
}

.filter-controls .form-group {
    margin-bottom: 0;
    flex: 1;
    min-width: 200px;
}

.date-range-filter {
    display: flex;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.export-options {
    display: flex;
    gap: 1rem;
    margin-top: 2rem;
    flex-wrap: wrap;
}

/* Settings Switch (Dark Mode Toggle) */
.switch {
    position: relative;
    display: inline-block;
    width: 50px;
    height: 28px;
}

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

.slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--border-color);
    transition: .4s;
    border-radius: 28px;
}

.slider:before {
    position: absolute;
    content: "";
    height: 20px;
    width: 20px;
    left: 4px;
    bottom: 4px;
    background-color: white;
    transition: .4s;
    border-radius: 50%;
}

input:checked + .slider {
    background-color: var(--primary-color);
}

input:checked + .slider:before {
    transform: translateX(22px);
}

.settings-card .setting-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 0;
    border-bottom: 1px solid var(--border-color);
}

.settings-card .setting-item:last-child {
    border-bottom: none;
}

/* Message Box for alerts */
.message-box {
    padding: 1rem;
    border-radius: 0.5rem;
    margin-top: 1.5rem;
    text-align: center;
    font-weight: 500;
    opacity: 0;
    transform: translateY(10px);
    transition: opacity 0.3s ease, transform 0.3s ease;
}

.message-box.show {
    opacity: 1;
    transform: translateY(0);
}

.message-box.success {
    background-color: #d1fae5;
    color: #065f46;
    border: 1px solid #6ee7b7;
}

.message-box.error {
    background-color: #fee2e2;
    color: #991b1b;
    border: 1px solid #fca5a5;
}

.message-box.warning {
    background-color: #fef3c7;
    color: #92400e;
    border: 1px solid #fcd34d;
}

.warning-text {
    color: var(--warning-color);
    font-size: 0.9rem;
    margin-top: 0.5rem;
}

.no-data-message {
    text-align: center;
    color: var(--secondary-color);
    font-style: italic;
    padding: 2rem 0;
}

/* Media Queries for Responsiveness */
@media (max-width: 768px) {
    .nav {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background-color: var(--card-background-light);
        box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    }

    .nav.active {
        display: block;
    }

    .nav ul {
        flex-direction: column;
        align-items: center;
        padding: 1rem 0;
        gap: 1rem;
    }

    .menu-toggle {
        display: block;
    }
}