:root {
    --bg: #f4f4f4;
    --surface: #ffffff;
    --surface-soft: #f8faf8;
    --text: #333333;
    --muted: #666666;
    --border: #d7e8df;
    --accent: #004d2c;
    --accent-soft: #d7ebdd;
    --button-bg: #004d2c;
    --button-text: #ffffff;
    --nav-bg: #333333;
    --header-bg: #ffffff;
    --card-bg: #ffffff;
    --footer-bg: transparent;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    margin: 0;
    padding: 0;
    background-color: var(--bg);
    color: var(--text);
}

/* Header & Logo Area */
header {
    background-color: white;
    border-bottom: 4px solid #004d2c;
    padding: 20px 0;
    text-align: center;
}

header h1 {
    color: #004d2c;
    margin: 0;
    text-transform: uppercase;
    letter-spacing: 2px;
}

header p {
    font-size: 0.9rem;
    color: #666;
    margin-top: 5px;
}

/* Navigation Menu */
nav {
    background-color: #333;
    padding: 10px 0;
}

.tab-menu {
    list-style: none;
    display: flex;
    justify-content: center;
    padding: 0;
    margin: 0;
}

.tab-menu li {
    margin: 0 15px;
}

.tab-link {
    background: #e8f3ea;
    border: 1px solid #d7e8df;
    color: #004d2c;
    font-weight: bold;
    text-transform: uppercase;
    font-size: 0.85rem;
    cursor: pointer;
    padding: 10px 14px;
    border-radius: 8px;
    transition: background 0.25s, color 0.25s, transform 0.25s;
}

.tab-link:hover {
    background: #d7ebdd;
    color: #004d2c;
    transform: translateY(-1px);
}

.tab-link.active {
    background: #004d2c;
    border-color: #004d2c;
    color: #ffffff;
}

.theme-toggle {
    background: var(--button-bg);
    color: var(--button-text);
    border: none;
    border-radius: 8px;
    padding: 10px 16px;
    font-weight: 700;
    cursor: pointer;
    transition: filter 0.2s ease;
}

.theme-toggle:hover {
    filter: brightness(1.05);
}

#budget-chart-container {
    width: 100%;
    max-width: 700px;
    background-color: var(--surface);
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 20px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.08);
}

#budget-chart-container canvas {
    width: 100%;
    max-width: 300px;
    height: auto;
}

.chart-legend-item {
    display: flex;
    align-items: center;
    gap: 10px;
    justify-content: space-between;
}

.chart-color-swatch {
    width: 18px;
    height: 18px;
    border-radius: 6px;
    flex-shrink: 0;
}

body.dark-mode #budget-chart-container {
    background-color: #111826 !important;
    border-color: #334155 !important;
    box-shadow: 0 4px 14px rgba(0,0,0,0.35) !important;
}

body.dark-mode .chart-legend-item span:last-child {
    color: #94a3b8 !important;
}

/* Main Content Area */
main {
    max-width: 1000px;
    margin: 30px auto;
    background: white;
    padding: 40px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
    border-radius: 4px;
    min-height: 400px;
}

h2 {
    color: #004d2c;
    border-left: 5px solid #004d2c;
    padding-left: 15px;
    margin-bottom: 20px;
}

/* Form/Input Styling */
input, select, button {
    padding: 10px;
    margin: 10px 0;
    border: 1px solid #ccc;
    border-radius: 4px;
}

/* Tab Content Visibility */
.tab-content {
    animation: fadeIn 0.5s;
}

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

.info-box {
    margin-top: 50px;
    padding: 20px;
    background-color: #f4f9f6;
    border-radius: 10px;
    border-left: 5px solid #004d2c;
    color: #333;
}

.info-grid {
    display: flex;
    gap: 15px;
    margin-top: 15px;
}

.card {
    flex: 1;
    background: white;
    padding: 15px;
    border-radius: 8px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.05);
    font-size: 0.9rem;
}

.info-box h3 {
    margin-top: 0;
    color: #004d2c;
}

ul {
    padding-left: 20px;
}

li {
    margin-bottom: 10px;
}

/* ─── Dark Mode ────────────────────────────────────────────────────────────── */

body.dark-mode {
    background-color: #0b1320 !important;
    color: #e5e7eb !important;
}

body.dark-mode header {
    background-color: #08111f !important;
    border-bottom-color: #1f2937 !important;
}

body.dark-mode header h1 {
    color: #7ee2b8 !important;
}

body.dark-mode header p,
body.dark-mode footer,
body.dark-mode label,
body.dark-mode .tab-link,
body.dark-mode .tab-content,
body.dark-mode .info-box,
body.dark-mode .card,
body.dark-mode input,
body.dark-mode select,
body.dark-mode button,
body.dark-mode .theme-toggle {
    color: #e5e7eb !important;
}

body.dark-mode main,
body.dark-mode section,
body.dark-mode article,
body.dark-mode .info-box,
body.dark-mode .card,
body.dark-mode footer {
    background-color: #111826 !important;
    border-color: #334155 !important;
    box-shadow: 0 4px 18px rgba(0,0,0,0.35) !important;
}

body.dark-mode article {
    color: #e5e7eb !important;
}

body.dark-mode nav {
    background-color: #111827 !important;
}

body.dark-mode .tab-menu {
    background-color: transparent !important;
}

body.dark-mode .tab-link {
    background: #1f2937 !important;
    border-color: #334155 !important;
    color: #cbd5e1 !important;
}

body.dark-mode .tab-link:hover {
    background: #334155 !important;
}

body.dark-mode .tab-link.active {
    background: #0f766e !important;
    border-color: #0f766e !important;
    color: #ffffff !important;
}

body.dark-mode input,
body.dark-mode select {
    background-color: #0f1720 !important;
    color: #e5e7eb !important;
    border-color: #334155 !important;
}

body.dark-mode input::placeholder {
    color: #94a3b8 !important;
}

body.dark-mode button,
body.dark-mode .theme-toggle {
    background-color: #0f766e !important;
    color: #ffffff !important;
    border-color: transparent !important;
}

body.dark-mode button:hover,
body.dark-mode .theme-toggle:hover {
    background-color: #115e59 !important;
}

body.dark-mode #quiz-result div {
    background-color: #15202d !important;
    border-color: #334155 !important;
}

body.dark-mode #quiz-result div p {
    color: #e5e7eb !important;
}

body.dark-mode a {
    color: #7dd3fc !important;
}

body.dark-mode a:hover {
    color: #bae6fd !important;
}

/* ─── Debt Calculator: Light Mode ───────────────────────────────────────────── */

#debt-container .debt-row {
    background: #f3fbf5;
    border: 1px solid #c8e8d2;
}

#debt-container .debt-row-label {
    color: #033d1a;
}

#debt-container .debt-label {
    font-size: 0.85rem;
    font-weight: 600;
    color: #033d1a;
    margin-bottom: 2px;
    display: block;
}

#debt-container .debt-input {
    border: 1px solid #b3d7c5;
    background: #ffffff;
    color: #033d1a;
}

#debt-container .debt-input::placeholder {
    color: #7aad8e;
}

#debt-container .debt-section-box {
    background: #f3fbf5;
    border: 1px solid #c8e8d2;
}

#debt-container .strategy-label {
    border: 2px solid #b3d7c5;
    background: #f3fbf5;
}

#debt-container .strategy-label.strategy-selected {
    border-color: #004d2c;
    background: #eaf8ed;
}

#debt-container button#add-debt {
    background: #eaf8ed;
    color: #004d2c;
    border: 1px solid #b3d7c5;
}

#debt-container button#calculate-btn {
    background: #004d2c;
    color: #ffffff;
}

#debt-container button#compare-btn {
    background: #b3d7c5;
    color: #033d1a;
}

#debt-container button.remove-debt {
    color: #b71c1c;
}

/* ─── Debt row boxes ─────────────────────────────────────────────────────────── */

#debt-container .debt-row {
    border-radius: 16px !important;
    padding: 18px;
}

#debt-container .debt-section-box {
    border-radius: 16px !important;
    padding: 16px;
}

#debt-container .debt-input {
    border-radius: 10px !important;
    padding: 10px 12px;
    width: 100%;
    box-sizing: border-box;
}

#debt-container .strategy-label {
    border-radius: 12px !important;
    padding: 10px 14px;
    display: flex;
    gap: 8px;
    cursor: pointer;
}

#debt-container button#add-debt,
#debt-container button#calculate-btn,
#debt-container button#compare-btn {
    border-radius: 10px !important;
    padding: 10px 18px;
    font-weight: 700;
    border: 1px solid transparent;
    cursor: pointer;
}

/* ─── Debt Calculator: Dark Mode ────────────────────────────────────────────── */

body.dark-mode #debt-container .debt-row {
    background: #111826 !important;
    border-color: #334155 !important;
}

body.dark-mode #debt-container .debt-row-label {
    color: #e5e7eb !important;
}

body.dark-mode #debt-container .debt-label {
    color: #e5e7eb !important;
}

body.dark-mode #debt-container .debt-muted {
    color: #94a3b8 !important;
}

body.dark-mode #debt-container .debt-input {
    background-color: #0f1720 !important;
    color: #e5e7eb !important;
    border-color: #334155 !important;
}

body.dark-mode #debt-container .debt-input::placeholder {
    color: #94a3b8 !important;
}

body.dark-mode #debt-container .debt-section-box {
    background: #111826 !important;
    border-color: #334155 !important;
}

body.dark-mode #debt-container .strategy-label {
    background: #111826 !important;
    border-color: #334155 !important;
    color: #e5e7eb !important;
}

body.dark-mode #debt-container .strategy-label.strategy-selected {
    background: #0f1f2e !important;
    border-color: #0f766e !important;
}

body.dark-mode #debt-container button#add-debt {
    background-color: #1f2937 !important;
    color: #e5e7eb !important;
    border-color: #334155 !important;
}

body.dark-mode #debt-container button#calculate-btn {
    background-color: #0f766e !important;
    color: #ffffff !important;
}

body.dark-mode #debt-container button#compare-btn {
    background-color: #1f2937 !important;
    color: #e5e7eb !important;
    border-color: #334155 !important;
}

body.dark-mode #debt-container button.remove-debt {
    background: none !important;
    color: #f87171 !important;
    border: none !important;
}

body.dark-mode #debt-results > div {
    background: #111826 !important;
    border-color: #334155 !important;
    color: #e5e7eb !important;
}

body.dark-mode #debt-results table {
    color: #e5e7eb !important;
}

body.dark-mode #debt-results th,
body.dark-mode #debt-results td {
    border-color: #334155 !important;
    color: #e5e7eb !important;
}

body.dark-mode #debt-results thead tr {
    background: #0f1720 !important;
}

body.dark-mode #debt-results .debt-stat-box {
    background: #0f1720 !important;
    border-color: #334155 !important;
}

body.dark-mode #debt-results .debt-tip-box {
    background: #0f1f2e !important;
    border-color: #334155 !important;
    color: #94a3b8 !important;
}

body.dark-mode #debt-results .compare-box {
    background: #0f1720 !important;
    border-color: #334155 !important;
    color: #e5e7eb !important;
}

body.dark-mode #debt-results .compare-box-selected {
    border-color: #0f766e !important;
    background: #0f1f2e !important;
}

/* ─── Dark Mode: Budgeting, Savings & Career inputs ─────────────────────────── */

body.dark-mode #budgeting-container input,
body.dark-mode #savings-container input,
body.dark-mode #career-container input,
body.dark-mode #budgeting-container select,
body.dark-mode #savings-container select,
body.dark-mode #career-container select {
    background-color: #0f1720 !important;
    color: #e5e7eb !important;
    border-color: #334155 !important;
}

body.dark-mode #budgeting-container input::placeholder,
body.dark-mode #savings-container input::placeholder,
body.dark-mode #career-container input::placeholder {
    color: #94a3b8 !important;
}

body.dark-mode #budgeting-container label,
body.dark-mode #savings-container label,
body.dark-mode #career-container label {
    color: #e5e7eb !important;
}