/* LTCMA 2026 Portfolio App - Premium Minimal Design System */

:root {
    --bg-color: #f6f8fa; /* 落ち着いた微細なグレー */
    --card-bg: #ffffff;
    --card-border: #eef1f4; /* より上品な薄い境界線 */
    --text-primary: #0f172a; /* 深みのあるスレート */
    --text-secondary: #475569;
    --primary-color: #091e36; /* 伝統的な高級金融機関風ディープネイビー */
    --primary-hover: #1e354f;
    --secondary-color: #64748b;
    --secondary-hover: #475569;
    --accent: #af8d53; /* 洗練されたブラス・シャンパンゴールド */
    --font-sans: -apple-system, BlinkMacSystemFont, "Helvetica Neue", "Segoe UI", "Hiragino Kaku Gothic ProN", "Hiragino Sans", "Meiryo", sans-serif;
    --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.015);
    --shadow-md: 0 4px 16px rgba(15, 23, 42, 0.03);
    --border-radius: 4px; /* シャープで構造的なルック */
    --transition: all 0.15s ease-out;
}

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

body {
    background-color: var(--bg-color);
    color: var(--text-primary);
    font-family: var(--font-sans);
    font-size: 18px; /* 16px -> 18px */
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    overflow-x: hidden;
    line-height: 1.7;
}

/* Header */
.app-header {
    padding: 1.75rem 1.5rem;
    background: #ffffff;
    border-bottom: 1px solid var(--card-border);
}

.header-container {
    max-width: 1200px;
    margin: 0 auto;
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.app-title {
    font-size: 1.8rem;
    font-weight: 800;
    letter-spacing: -0.03em;
    color: var(--primary-color);
    margin-bottom: 0.25rem;
}

.app-subtitle {
    color: var(--text-secondary);
    font-size: 1.1rem;
    font-weight: 400;
    letter-spacing: 0.02em;
}

/* Layout */
.app-container {
    flex: 1;
    max-width: 1200px;
    width: 100%;
    margin: 2rem auto;
    padding: 0 1.5rem;
}

.app-grid {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

@media (max-width: 1024px) {
    .app-grid {
        grid-template-columns: 1fr;
    }
}

/* Panels */
.control-panel, .display-panel {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

/* Cards */
.card {
    background-color: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--border-radius);
    padding: 2.25rem 2rem;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.card:hover {
    box-shadow: var(--shadow-md);
    border-color: #cbd5e1;
}

.card-title {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 1.5rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--card-border);
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

.card-title-no-border {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--primary-color);
    letter-spacing: 0.02em;
    text-transform: uppercase;
}

.input-header-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1.5rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--card-border);
}

@media (max-width: 640px) {
    .input-header-row {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }
}

/* Forms */
.form-container {
    display: flex;
    flex-direction: column;
    gap: 1.1rem;
}

.inputs-grid-form {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1rem 2rem;
}

.settings-grid-form {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1rem 2rem;
}

.input-group {
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding: 0.1rem 0;
}

.input-group label {
    font-size: 1.1rem;
    color: var(--text-secondary);
    font-weight: 500;
    margin-bottom: 0;
}

.input-group input, .input-group select {
    background: #ffffff;
    border: 1px solid #cbd5e1;
    border-radius: var(--border-radius);
    padding: 0.6rem 0.8rem;
    color: var(--text-primary);
    font-family: var(--font-sans);
    font-size: 1.1rem;
    transition: var(--transition);
    text-align: right;
    width: 180px;
    flex-shrink: 0;
}

.input-group select {
    text-align: left;
}

.input-group input:focus, .input-group select:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(175, 141, 83, 0.08);
}

.input-with-unit {
    display: flex;
    align-items: center;
    gap: 0.35rem;
    width: 160px;
    flex-shrink: 0;
}

.input-with-unit input {
    width: 120px !important;
}

.input-unit {
    font-size: 1rem;
    color: var(--text-secondary);
    font-weight: 700;
}

/* Results Summary Grid */
.summary-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
}

.stat-card {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    justify-content: center;
    padding: 1.5rem;
    background: #ffffff;
    border: 1px solid var(--card-border);
    border-top: 2px solid var(--primary-color); /* 左線から格調高い上線へ */
    border-left: none;
    border-right: none;
    border-bottom: none;
    border-radius: 0;
    box-shadow: none;
}

.stat-card:nth-child(2) {
    border-top-color: var(--accent);
}

.stat-card:nth-child(3) {
    border-top-color: var(--secondary-color);
}

.stat-card:nth-child(4) {
    border-top-color: #0d9488;
}

.stat-label {
    font-size: 0.9rem;
    letter-spacing: 0.06em;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
    font-weight: 700;
    text-transform: uppercase;
}

.stat-value {
    font-size: 2rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    color: var(--primary-color);
    white-space: nowrap;
}

.text-gradient {
    color: var(--primary-color);
}

/* Charts */
.chart-card {
    width: 100%;
}

.chart-container {
    position: relative;
    width: 100%;
    height: 400px;
}

/* Table */
.table-wrapper {
    overflow-x: auto;
    border-radius: var(--border-radius);
    border: 1px solid var(--card-border);
}

.results-table {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
    font-size: 1.1rem;
}

.results-table th {
    background: #ffffff;
    padding: 1rem 1rem;
    font-weight: 700;
    font-size: 1rem;
    letter-spacing: 0.02em;
    color: var(--primary-color);
    border-bottom: 2px solid var(--primary-color);
}

.results-table td {
    padding: 1rem 1rem;
    border-bottom: 1px solid var(--card-border);
    color: var(--text-primary);
    font-size: 1.1rem;
}

.results-table tr:hover {
    background: #fdfdfd;
}

/* Footer */
.app-footer {
    padding: 2rem 1.5rem;
    text-align: center;
    border-top: 1px solid var(--card-border);
    background: #ffffff;
    color: var(--text-secondary);
    font-size: 0.75rem;
    margin-top: auto;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}

::-webkit-scrollbar-track {
    background: var(--bg-color);
}

::-webkit-scrollbar-thumb {
    background: #cbd5e1;
    border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
    background: #94a3b8;
}

/* CSV Upload Area */
.csv-upload-container {
    margin-bottom: 0;
}

.csv-upload-label {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.45rem 1rem;
    background: #ffffff;
    border: 1px solid var(--card-border);
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition);
    font-size: 1rem;
    color: var(--text-secondary);
    font-weight: 600;
    width: auto;
}

.csv-upload-label:hover {
    background: #f8fafc;
    border-color: #cbd5e1;
    color: var(--primary-color);
}

.upload-icon {
    font-size: 1rem;
}

/* Portfolio Advice Styles */
.advice-content {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.advice-placeholder {
    color: var(--text-secondary);
    font-size: 1.1rem;
    font-style: italic;
}

.advice-item {
    padding: 1.25rem 1.5rem;
    border-radius: var(--border-radius);
    background: #ffffff;
    border: 1px solid var(--card-border);
    border-left: 3px solid var(--secondary-color);
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    box-shadow: var(--shadow-sm);
}

/* 派手な背景色を完全に排除し、余白と左側の細いカラーバーのみで表現 */
.advice-item.info {
    border-left-color: var(--secondary-color);
}

.advice-item.success {
    border-left-color: #10b981;
}

.advice-item.warning {
    border-left-color: #f59e0b;
}

.advice-item.error {
    border-left-color: #ef4444;
}

.advice-header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    flex-wrap: wrap;
}

.advice-badge {
    font-size: 0.9rem;
    font-weight: 700;
    padding: 0.25rem 0.6rem;
    border-radius: 2px;
    border: 1px solid transparent;
}

.advice-badge.info {
    background-color: #f1f5f9;
    color: #475569;
    border-color: #e2e8f0;
}

.advice-badge.success {
    background-color: #ecfdf5;
    color: #065f46;
    border-color: #a7f3d0;
}

.advice-badge.warning {
    background-color: #fffbeb;
    color: #92400e;
    border-color: #fde68a;
}

.advice-badge.error {
    background-color: #fff1f2;
    color: #9f1239;
    border-color: #fecdd3;
}

.advice-title {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--primary-color);
}

.advice-text {
    font-size: 1.15rem;
    color: var(--text-secondary);
    line-height: 1.8;
}