:root {
    /* Light mode colors */
    --light-bg-color: #d1dbe0;
    --dark-bg-color: #1e2a38;
    --light-text-color: #000000c9;
    --dark-text-color: #d1dbe0;
    --primary-color: #2196F3;
    --primary-hover-color: #0056b3;
    --light-border-color: #a6a6a68a;
    --dark-border-color: #cccccc1f;
    --light-button-background: #b8cee0;
    --dark-button-background: #324862;
    --light-input-border-color: #cccccc5f;
    --dark-input-border-color: #cccccc1f;
    --slider-background-color: #ccc;
    --light-slider-knob-color: #ffffff;
    --dark-slider-knob-color: #ffffff;
    --toggle-light-bg-color: #b8cee082;
    --toggle-dark-bg-color: #1b3b627a;
    --header-box-shadow: #0c1116b4;
    --table-header-bg: #2195f335;
    --table-even-row: #f2f2f2;
    --table-dark-even-row: #2a3b4d;
    --table-hover-row: #e3f2fd;
    --table-dark-hover-row: #3a4b5d;
    --light-table-header-text: #000000bf;
    --dark-table-header-text: #ffffffa3;
    --light-table-content-text: #000000b4;
    --dark-table-content-text: #ffffff96;
    --dark-input-background: #213144;
    --light-input-background: #c3cfd7;
    --language-select-bg-light: #f0f0f0;
    --language-select-bg-dark: #3a4a5a;
    --language-select-border-light: #a6a6a68a;
    --language-select-border-dark: #cccccc1f;
    --language-select-arrow-light: #555555;
    --language-select-arrow-dark: #d1dbe0;
    --dark-result-text-color: var(--dark-table-content-text);
    --light-result-text-color: var(--light-table-content-text);
    --header-left-logo: 40px;
    --header-right-height: 24px;
}

body {
    /* Default: Light mode */
    --bg-color: var(--light-bg-color);
    --text-color: var(--light-text-color);
    --border-color: var(--light-border-color);
    --button-background: var(--light-button-background);
    --input-border-color: var(--light-input-border-color);
    --slider-knob-color: var(--light-slider-knob-color);
    --toggle-bg-color: var(--toggle-light-bg-color);
    --table-even-row-color: var(--table-even-row);
    --table-hover-row-color: var(--table-hover-row);
    --table-header-text: var(--light-table-header-text);
    --table-content-text: var(--light-table-content-text);
    --input-background: var(--light-input-background);
    --language-select-bg: var(--language-select-bg-light);
    --language-select-border: var(--language-select-border-light);
    --language-select-arrow: var(--language-select-arrow-light);
    --results-text-color: var(--light-result-text-color);
    font-family: Arial, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    overflow-x: hidden;
    width: calc(100% - 10px);
    transition: background-color 0.3s, color 0.3s;
    margin: 5px;
}

body.dark-mode {
    /* Dark mode overrides */
    --bg-color: var(--dark-bg-color);
    --text-color: var(--dark-text-color);
    --border-color: var(--dark-border-color);
    --button-background: var(--dark-button-background);
    --input-border-color: var(--dark-input-border-color);
    --slider-knob-color: var(--dark-slider-knob-color);
    --toggle-bg-color: var(--toggle-dark-bg-color);
    --table-even-row-color: var(--table-dark-even-row);
    --table-hover-row-color: var(--table-dark-hover-row);
    --table-header-text: var(--dark-table-header-text);
    --table-content-text: var(--dark-table-content-text);
    --input-background: var(--dark-input-background);
    --language-select-bg: var(--language-select-bg-dark);
    --language-select-border: var(--language-select-border-dark);
    --language-select-arrow: var(--language-select-arrow-dark);
    --results-text-color: var(--dark-result-text-color);
}

/* Slider styles */
.switch {
    display: inline-block;
    width: 50px;
    height: var(--header-right-height);
    position: relative;
}

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

.slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--slider-background-color);
    transition: 0.4s;
    border-radius: 24px;
}

.slider:before {
    position: absolute;
    content: "";
    height: 16px;
    width: 16px;
    left: 4px;
    bottom: 4px;
    background-color: var(--slider-knob-color);
    transition: 0.4s;
    border-radius: 50%;
}

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

input:checked+.slider:before {
    transform: translateX(26px);
}

/* Header styles */
.sticky-header {
    background-color: var(--bg-color);
    color: var(--text-color);
    position: sticky;
    top: 0;
    z-index: 2;
    box-shadow: 0px 3px 3px 0px var(--header-box-shadow);
    padding: 10px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
}

.sticky-header h1 {
    margin: 0;
    font-size: large;
    text-align: center;
}

/* Header right container styling */
.header-right {
    display: flex;
    align-items: center;
    gap: 15px;
}

/* Language Selector Styles */
.language-selector-container {
    position: relative;
}

#language-select {
    margin-top: 0px;
    /* padding: 6px 12px; */
    border: 1px solid var(--language-select-border);
    border-radius: 6px;
    background-color: var(--language-select-bg);
    color: var(--text-color);
    font-size: 0.9em;
    cursor: pointer;
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
    background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%23555555'%3e%3cpath d='M7 10l5 5 5-5z'/%3e%3c/svg%3e");
    background-repeat: no-repeat;
    background-position: right 10px center;
    background-size: 14px;
    padding-right: 30px;
    min-width: 130px;
    height: var(--header-right-height) + 6px;
    transition: all 0.3s ease;
}

#language-select:focus {
    outline: none;
    box-shadow: 0 0 0 2px var(--primary-color);
    border-color: var(--primary-color);
}

#language-select option {
    background-color: var(--bg-color);
    color: var(--text-color);
}

/* Add hover effect */
#language-select:hover {
    background-color: var(--button-background);
}

/* Menu styles */
.menu {
    display: flex;
    margin-bottom: 15px;
    /* border-bottom: 1px solid var(--border-color); */
}

.menu-btn {
    flex: 1;
    padding: 10px;
    background: none;
    border: none;
    cursor: pointer;
    font-weight: bold;
    color: var(--text-color);
    border-bottom: 2px solid var(--border-color);
}

.menu-btn.active {
    border-bottom: 2px solid var(--primary-color);
}

/* Input and button styles */
.input-group {
    position: relative;
    margin-bottom: 15px;
}

.input-group .floating-placeholder {
    position: absolute;
    left: 10px;
    top: calc(50% + 0.1em);
    transform: translateY(-50%);
    color: var(--text-color);
    pointer-events: none;
    background-color: var(--input-background);
    /* padding: 0 4px; */
    transition: all 0.2s ease;
    /* font-weight: normal; */
}

.input-group label {
    display: block;
    margin-bottom: 5px;
    font-weight: bold;
}

select,
button {
    width: 100%;
    padding: 8px;
    margin-top: 5px;
    border: 1px solid var(--input-border-color);
    border-radius: 4px;
    box-sizing: border-box;
    background-color: var(--bg-color);
    color: var(--text-color);
}

input {
    width: 100%;
    padding: 12px 10px 10px;
    margin-top: 5px;
    border: 1px solid var(--input-border-color);
    border-radius: 4px;
    box-sizing: border-box;
    background-color: var(--input-background);
    color: var(--text-color);
}

input:focus ~ .floating-placeholder,
input:not(:placeholder-shown) ~ .floating-placeholder {
    transform: translateY(-20px);
    font-size: 0.8em;
    color: var(--primary-color);
}

button {
    background-color: var(--button-background);
    border: 1px solid var(--border-color);
    cursor: pointer;
    font-weight: bold;
}

button:hover {
    background-color: var(--primary-hover-color);
}

/* Container styles */
.container {
    max-width: 600px;
    margin: 20px auto;
    padding: 10px;
    border-radius: 10px;
    border: 1px solid var(--border-color);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

/* Section styles */
.section {
    display: none;
}

.section.active {
    display: block;
}

/* Results section */
.results {
    margin-top: 20px;
    padding: 8px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    background-color: var(--bg-color);
    color: var(--results-text-color);
}

.results h2 {
    margin-top: 0;
}

.results .tranche-column {
    width: calc(13*0.9em);
}

/* Threshold table styles */
.threshold-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 15px;
    font-size: 0.9em;
}

.threshold-table th {
    background-color: var(--table-header-bg);
    color: var(--table-header-text);
    padding: 8px;
    text-align: left;
}

.threshold-table td {
    padding: 8px;
    color: var(--table-content-text);
    text-align: right;
    border-bottom: 1px solid var(--border-color);
}

.threshold-table tr:nth-child(even) {
    background-color: var(--table-even-row-color);
}

.threshold-table tr:hover {
    background-color: var(--table-hover-row-color);
}

.threshold-table td:first-child {
    text-align: left;
}

/* Tax type group */
.tax-type-group {
    display: block;
}

.tax-type-group.hidden {
    display: none;
}

.header-left .header-logo {
    max-height: var(--header-left-logo);
    cursor: pointer;
}

/* Custom dropdown styling for language selector */
@media (max-width: 480px) {
    .header-right {
        gap: 10px;
    }

    #language-select {
        min-width: 110px;
        padding: 6px 8px;
        font-size: 0.8em;
    }
}