/* CSS 변수를 사용하여 테마 관리 */
:root {
    --bg-color: #f0f0f0;
    --container-bg: #ffffff;
    --text-color: #333;
    --input-bg: #fafafa;
    --input-border: #ccc;
    --section-title: #00b894;
    --button-bg: #0984e3;
    --button-text: #fff;
    --result-bg: #dfe6e9;
    --result-text: #2d3436;
    --shadow-color: rgba(0, 0, 0, 0.1);
}

body.dark-mode {
    --bg-color: #121212;
    --container-bg: #1e1e1e;
    --text-color: #f5f5f5;
    --input-bg: #2a2a2a;
    --input-border: #444;
    --section-title: #00ff88;
    --button-bg: #007bff;
    --button-text: #fff;
    --result-bg: #333;
    --result-text: #00ff88;
    --shadow-color: rgba(0, 0, 0, 0.3);
}

body {
    margin: 0;
    font-family: 'Malgun Gothic', -apple-system, BlinkMacSystemFont, sans-serif;
    display: flex;
    justify-content: center;
    align-items: center; /* Center vertically */
    min-height: 100vh;
    background-color: var(--bg-color);
    transition: background-color 0.3s ease;
    padding: 20px 0;
}

.calculator-container {
    background-color: var(--container-bg);
    color: var(--text-color);
    border-radius: 20px;
    padding: 30px;
    box-shadow: 0 10px 30px var(--shadow-color);
    width: 100%;
    max-width: 450px;
    position: relative;
    transition: background-color 0.3s ease, color 0.3s ease;
    max-height: 90vh;
    overflow-y: auto;
}

/* Scrollbar styling */
.calculator-container::-webkit-scrollbar {
    width: 8px;
}
.calculator-container::-webkit-scrollbar-thumb {
    background-color: #888;
    border-radius: 4px;
}

h2 {
    text-align: center;
    margin-top: 0;
    margin-bottom: 20px;
    font-size: 1.5em;
}

.tabs {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    border-bottom: 1px solid var(--input-border);
    margin-bottom: 10px;
}

.tab-link {
    background: none;
    border: none;
    padding: 10px 2px;
    cursor: pointer;
    color: var(--text-color);
    opacity: 0.7;
    font-size: 0.8em;
    font-family: 'Malgun Gothic', sans-serif;
    word-break: keep-all;
}

.tab-link.active {
    font-weight: bold;
    opacity: 1;
    border-bottom: 3px solid var(--section-title);
}

.section {
    margin-bottom: 20px;
    border-bottom: 1px solid var(--input-border);
    padding-bottom: 15px;
}

.section:last-of-type {
    border-bottom: none;
}

.section-title {
    color: var(--section-title);
    font-weight: bold;
    margin-bottom: 10px;
}

.input-group {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 10px;
}

.input-group label {
    flex: 1;
    font-size: 0.9em;
}

.input-group input, .input-group select {
    width: 100px;
    padding: 5px;
    border-radius: 5px;
    border: 1px solid var(--input-border);
    background-color: var(--input-bg);
    color: var(--text-color);
    text-align: right;
}

.input-group select {
    width: 140px; /* 텍스트 길이에 맞춰 조금 더 넓게 */
}

.radio-group {
    display: flex;
    align-items: center;
    margin-bottom: 8px;
    font-size: 0.9em;
}

.radio-group span {
    margin-right: 10px;
    font-weight: bold;
}

.radio-group label {
    margin-right: 15px;
    cursor: pointer;
    display: flex;
    align-items: center;
}

.radio-group input {
    margin-right: 5px;
}

.checkbox-group {
    margin: 10px 0;
    font-size: 0.9em;
    display: flex;
    align-items: center;
}

.checkbox-group input {
    margin-right: 8px;
}

.partial-settings {
    background-color: rgba(0,0,0,0.05);
    padding: 10px;
    border-radius: 8px;
    margin-top: 5px;
}
body.dark-mode .partial-settings {
    background-color: rgba(255,255,255,0.05);
}

/* Tab Content Styling */
.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
}

button#calculate-btn, button#calculate-btn-stock, button#calculate-btn-meta, button#calculate-btn-comp, button#calculate-btn-fut, button#calculate-btn-kelly, button#calculate-btn-avg, button#calculate-btn-partial, button#calculate-btn-strat {
    width: 100%;
    padding: 15px;
    background-color: var(--button-bg);
    color: var(--button-text);
    border: none;
    border-radius: 10px;
    font-size: 1.1em;
    font-weight: bold;
    cursor: pointer;
    margin-top: 10px;
    transition: opacity 0.2s;
}

button#calculate-btn:hover, button#calculate-btn-stock:hover, button#calculate-btn-meta:hover, button#calculate-btn-comp:hover, button#calculate-btn-fut:hover, button#calculate-btn-kelly:hover, button#calculate-btn-avg:hover, button#calculate-btn-partial:hover, button#calculate-btn-strat:hover {
    opacity: 0.9;
}

.reset-btn {
    width: 100%;
    padding: 10px;
    background-color: #95a5a6;
    color: white;
    border: none;
    border-radius: 10px;
    font-size: 1em;
    font-weight: bold;
    cursor: pointer;
    margin-top: 20px;
    transition: opacity 0.2s;
}
.reset-btn:hover {
    opacity: 0.9;
}

.result-area textarea, #result-stock, #result-meta {
    width: 100%;
    height: 250px;
    background-color: var(--result-bg);
    color: var(--result-text);
    border: none;
    border-radius: 10px;
    padding: 15px;
    margin-top: 20px;
    font-family: 'Consolas', monospace;
    font-size: 0.9em;
    resize: none;
    box-sizing: border-box;
}

/* 테마 스위처 */
.theme-switcher {
    position: absolute;
    top: 20px;
    right: 20px;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.share-container {
    position: absolute;
    top: 20px;
    left: 20px;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.lang-select {
    margin-top: 5px;
    background: transparent;
    border: 1px solid var(--input-border);
    color: var(--text-color);
    border-radius: 5px;
    padding: 2px;
    font-size: 0.8em;
    cursor: pointer;
}

.icon-btn {
    background: none;
    border: none;
    font-size: 1.5em;
    cursor: pointer;
    padding: 0;
    color: var(--text-color);
    transition: transform 0.2s;
}

.icon-btn:hover {
    transform: scale(1.1);
}

.theme-switcher input {
    display: none;
}

.theme-switcher .slider {
    display: block;
    width: 50px;
    height: 26px;
    background-color: #ccc;
    border-radius: 13px;
    cursor: pointer;
    position: relative;
    transition: background-color 0.3s ease;
}

.theme-switcher .slider::before {
    content: '';
    display: block;
    width: 20px;
    height: 20px;
    background-color: white;
    border-radius: 50%;
    position: absolute;
    top: 3px;
    left: 3px;
    transition: transform 0.3s ease;
}

.theme-switcher input:checked + .slider {
    background-color: var(--equals-bg);
}

.theme-switcher input:checked + .slider::before {
    transform: translateX(24px);
}

.theme-label {
    margin-top: 5px;
    font-size: 0.75rem;
    color: var(--text-color);
    font-weight: bold;
}

.disclaimer {
    margin-top: 20px;
    padding-top: 15px;
    border-top: 1px solid var(--input-border);
    font-size: 0.75em;
    color: #888;
    text-align: left;
    line-height: 1.4;
    word-break: keep-all;
}

.toggle-btn {
    background: none;
    border: 1px solid var(--input-border);
    color: var(--text-color);
    padding: 8px;
    width: 100%;
    border-radius: 5px;
    cursor: pointer;
    font-size: 0.9em;
    margin-bottom: 5px;
}

.result-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9em;
    margin-top: 10px;
}

.result-table th, .result-table td {
    border: 1px solid var(--input-border);
    padding: 8px;
    text-align: center;
}

.result-table th {
    background-color: var(--input-bg);
    color: var(--section-title);
}

.table-container {
    max-height: 300px;
    overflow-y: auto;
    border: 1px solid var(--input-border);
    border-radius: 5px;
}

.hidden-col {
    display: none !important;
}