/* YobiPoll 共通スタイル（外部ライブラリ不使用・自前CSSのみ） */

:root {
    --color-bg: #ece8e0;
    --color-text: #2b2c34;
    --color-text-light: #6b6a63;
    --color-accent: #3d6fb4;
    --color-accent-dark: #2c5286;
    --color-border: #d9d4c8;
    --color-border-light: #f3f0e9;
    --color-warn-bg: #fff8e1;
    --color-warn-text: #7a5b00;
    --color-danger: #c0392b;
    --color-ok-bg: #eaf6ec;
    --color-ok-text: #1e6b34;
    --color-header-bg: #22222e;
    --color-header-text: #ffffff;
    --color-header-text-muted: #b7b7c6;
    --color-header-link: #8fb8ea;
    --color-gold: #c9a227;
    --color-card-bg: #ded7c8;
    --color-subject-bg: #57503f;
    --color-subject-text: #ffffff;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: "Hiragino Kaku Gothic ProN", "Yu Gothic", "Meiryo", sans-serif;
    background: var(--color-bg);
    color: var(--color-text);
    line-height: 1.7;
}

a {
    color: var(--color-accent);
    font-weight: 700;
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

.site-header {
    background: var(--color-header-bg);
    position: sticky;
    top: 0;
    z-index: 100;
}

.site-header-inner {
    max-width: 900px;
    margin: 0 auto;
    padding: 10px 16px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 8px;
}

.site-logo {
    font-size: 1.2rem;
    font-weight: bold;
    text-decoration: none;
    color: var(--color-header-text);
}

.site-nav {
    display: flex;
    align-items: center;
    gap: 14px;
    font-size: 0.9rem;
}

.site-nav a {
    color: var(--color-header-link);
}

.nickname {
    color: var(--color-header-text-muted);
}

.site-main {
    max-width: 900px;
    margin: 0 auto;
    padding: 20px 16px 60px;
}

.site-footer {
    border-top: 1px solid var(--color-border);
    margin-top: 40px;
}

.disclaimer {
    max-width: 900px;
    margin: 0 auto;
    padding: 16px;
    font-size: 0.78rem;
    color: var(--color-text-light);
}

.version-info {
    max-width: 900px;
    margin: 0 auto;
    padding: 0 16px 16px;
    font-size: 0.7rem;
    color: #a3a3ba;
}

h1 {
    font-size: 1.85rem;
    font-weight: 800;
    letter-spacing: -0.01em;
    line-height: 1.3;
    margin: 4px 0 22px;
    display: flex;
    align-items: center;
    gap: 12px;
}

h1::before {
    content: "";
    flex: none;
    width: 12px;
    height: 12px;
    border-radius: 4px;
    background: var(--color-accent);
}

h2 {
    font-size: 1.15rem;
    font-weight: 700;
    margin: 32px 0 16px;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--color-border);
    position: relative;
}

h2::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: -1px;
    width: 40px;
    height: 3px;
    border-radius: 3px;
    background: var(--color-accent);
}

.flash-message {
    background: var(--color-ok-bg);
    border: 1px solid #7bc98f;
    padding: 10px 14px;
    border-radius: 6px;
    margin-bottom: 20px;
}

.error-message {
    background: #fdecea;
    border: 1px solid #f2b8b5;
    color: var(--color-danger);
    padding: 10px 14px;
    border-radius: 6px;
    margin-bottom: 20px;
}

.warn-box {
    background: var(--color-card-bg);
    color: var(--color-text);
    font-weight: 700;
    border-left: 4px solid #e0ac1f;
    border-radius: 6px;
    padding: 12px 16px;
    margin-bottom: 20px;
    line-height: 1.75;
}

/* --- ヒーローバナー（ログイン・新規登録画面） --- */

.hero-banner {
    width: 100%;
    height: auto;
    display: block;
    border-radius: 12px;
    margin: 20px 0 -8px;
    box-shadow: 0 4px 14px rgba(43, 44, 52, 0.18);
}

/* --- フォーム --- */

.form-box {
    max-width: 400px;
    margin: 40px auto;
}

.form-row {
    margin-bottom: 16px;
}

.form-row label {
    display: block;
    margin-bottom: 4px;
    font-weight: bold;
    font-size: 0.9rem;
}

.form-row input[type="text"],
.form-row input[type="email"],
.form-row input[type="password"],
.form-row input[type="number"],
.form-row select,
.form-row textarea {
    width: 100%;
    padding: 10px;
    border: 1px solid var(--color-border);
    border-radius: 6px;
    font-size: 1rem;
    font-family: inherit;
}

.btn {
    display: inline-block;
    background: linear-gradient(180deg, var(--color-accent) 0%, var(--color-accent-dark) 100%);
    color: #fff;
    border: none;
    padding: 11px 22px;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 700;
    cursor: pointer;
    text-decoration: none;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.18);
}

.btn:hover {
    background: var(--color-accent-dark);
}

.btn-secondary {
    background: #fff;
    color: var(--color-text);
    border: 1px solid var(--color-border);
}

.btn-secondary:hover {
    background: var(--color-border-light);
}

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

.btn-block {
    display: block;
    width: 100%;
    text-align: center;
}

/* --- カード・一覧 --- */

.card {
    border: 1px solid var(--color-border);
    border-radius: 8px;
    padding: 18px;
    margin-bottom: 16px;
}

.csv-upload-box {
    background: var(--color-card-bg);
}

.csv-upload-box summary {
    cursor: pointer;
    font-weight: 700;
    color: var(--color-accent);
}

.csv-upload-box form {
    margin-top: 12px;
    display: flex;
    gap: 10px;
    align-items: center;
    flex-wrap: wrap;
}

.table-scroll {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    margin-bottom: 20px;
}

table.simple-table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 20px;
    font-size: 0.92rem;
}

.table-scroll table.simple-table {
    margin-bottom: 0;
    min-width: 480px;
}

.table-scroll table.simple-table.table-wide {
    min-width: 640px;
}

table.simple-table th,
table.simple-table td {
    border: 1px solid var(--color-border);
    padding: 8px 10px;
    text-align: left;
}

table.simple-table th {
    background: var(--color-border-light);
}

.menu-list {
    list-style: none;
    padding: 0;
}

.menu-list li {
    margin-bottom: 10px;
}

.menu-list a {
    display: block;
    padding: 14px 16px;
    border: 1px solid var(--color-border);
    border-radius: 8px;
    text-decoration: none;
    color: var(--color-text);
}

.menu-list a:hover {
    border-color: var(--color-accent);
}

.menu-buttons {
    display: flex;
    flex-direction: column;
    gap: 12px;
    max-width: 420px;
}

.menu-buttons .btn {
    text-align: center;
}

.btn-disabled {
    display: inline-block;
    background: var(--color-border);
    color: var(--color-text-light);
    box-shadow: none;
    cursor: not-allowed;
}

.menu-hint {
    margin: -6px 0 0;
    font-size: 0.82rem;
    color: var(--color-text-light);
}

/* --- 解答入力画面 --- */

.subject-toc {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 24px;
    padding: 12px;
    background: var(--color-card-bg);
    border-radius: 8px;
}

.subject-toc a {
    font-size: 0.85rem;
    text-decoration: none;
    background: var(--color-subject-bg);
    color: var(--color-subject-text);
    border: 1px solid var(--color-subject-bg);
    padding: 4px 10px;
    border-radius: 14px;
}

.subject-block {
    margin-bottom: 36px;
}

.subject-title {
    position: sticky;
    top: 53px;
    z-index: 50;
    display: inline-block;
    background: var(--color-subject-bg);
    color: var(--color-subject-text);
    padding: 8px 18px;
    border-radius: 999px;
    font-weight: 700;
    box-shadow: 0 2px 10px rgba(43, 44, 52, 0.16);
    border-bottom: none;
}

.subject-title::after {
    display: none;
}

.question-block {
    background: var(--color-card-bg);
    border: 1px solid var(--color-border);
    border-radius: 10px;
    padding: 16px 18px;
    margin-bottom: 14px;
    box-shadow: 0 1px 3px rgba(43, 44, 52, 0.08);
}

.question-no {
    font-weight: bold;
    color: var(--color-text-light);
    font-size: 0.85rem;
    margin-bottom: 4px;
}

.question-body {
    margin-bottom: 10px;
}

.choice-list {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px 16px;
    margin-bottom: 10px;
}

.choice-label {
    display: flex;
    align-items: center;
    gap: 6px;
    min-height: 44px;
    padding: 4px 10px;
    background: var(--color-border-light);
    border: 1px solid var(--color-border);
    border-radius: 6px;
    cursor: pointer;
}

/* A〜Eの選択肢を薄い色分けにする（赤・青・黄・緑・紫） */
.choice-label:nth-child(1) {
    background: #f9d9d9;
    border-color: #e8b3b3;
}

.choice-label:nth-child(2) {
    background: #d9e6f9;
    border-color: #b3ccec;
}

.choice-label:nth-child(3) {
    background: #f9f2c8;
    border-color: #e8dba0;
}

.choice-label:nth-child(4) {
    background: #dcf2dc;
    border-color: #b3e0b3;
}

.choice-label:nth-child(5) {
    background: #ebdcf5;
    border-color: #d1b3e8;
}

.choice-label:has(input:checked) {
    background: #1a1a1a;
    border-color: #1a1a1a;
    border-width: 2px;
    font-weight: 700;
}

.choice-label:has(input:checked) .choice-text {
    color: #ffffff;
}

.choice-label input[type="radio"] {
    width: 22px;
    height: 22px;
    accent-color: var(--color-accent);
}

.choice-text {
    font-size: 0.95rem;
}

.btn-clear-choice {
    background: none;
    border: none;
    color: var(--color-text-light);
    font-size: 0.8rem;
    text-decoration: underline;
    cursor: pointer;
    padding: 8px 4px;
}

.comment-input {
    width: 100%;
    padding: 6px 8px;
    font-size: 0.85rem;
    border: 1px solid var(--color-border);
    border-radius: 4px;
    color: var(--color-text-light);
}

.subject-comment-block {
    margin-top: 16px;
}

.subject-comment-block label {
    display: block;
    font-size: 0.9rem;
    margin-bottom: 4px;
    color: var(--color-text-light);
}

.subject-comment-block textarea {
    width: 100%;
    padding: 8px;
    border: 1px solid var(--color-border);
    border-radius: 6px;
    font-family: inherit;
}

.submit-bar {
    position: sticky;
    bottom: 0;
    background: var(--color-bg);
    border-top: 1px solid var(--color-border);
    padding: 12px 0;
    display: flex;
    flex-direction: column;
    gap: 8px;
    align-items: center;
}

.autosave-status {
    font-size: 0.8rem;
    color: var(--color-text-light);
}

.autosave-status-error {
    color: var(--color-danger);
}

/* --- 結果画面（自前SVG不使用・CSSバー） --- */

.bar-graph {
    background: var(--color-border-light);
    border-radius: 4px;
    height: 14px;
    overflow: hidden;
}

.bar-graph-fill {
    background: var(--color-accent);
    height: 100%;
}

.choice-cell-estimated {
    background: var(--color-ok-bg);
    font-weight: bold;
}

.badge {
    display: inline-block;
    padding: 2px 10px;
    border-radius: 12px;
    font-size: 0.78rem;
    white-space: nowrap;
}

.badge-estimated {
    background: var(--color-ok-bg);
    color: var(--color-ok-text);
}

.badge-split {
    background: var(--color-warn-bg);
    color: var(--color-warn-text);
}

.badge-insufficient {
    background: var(--color-border-light);
    color: var(--color-text-light);
}