:root {
    --color-primary: #f08c00;
    --color-primary-dark: #c97000;
    --color-bg: #fff8ec;
    --color-surface: #ffffff;
    --color-border: #f0d9b0;
    --color-text: #3a2e1d;
    --color-muted: #7a6b52;
    --color-error: #c92a2a;
    --color-ok: #2b8a3e;
    --color-warn-bg: #fff3bf;
    --color-warn-border: #f5c542;
}

* {
    box-sizing: border-box;
}

[hidden] {
    display: none !important;
}

body {
    margin: 0;
    font-family: "Hiragino Kaku Gothic ProN", "Yu Gothic", Meiryo, sans-serif;
    color: var(--color-text);
    background: var(--color-bg);
    line-height: 1.6;
}

.page {
    max-width: 880px;
    margin: 0 auto;
    padding: 16px;
}

.page-header {
    margin-bottom: 16px;
}

.page-header h1 {
    margin: 4px 0;
    font-size: 1.6rem;
}

.page-header p {
    margin: 0;
    color: var(--color-muted);
}

.panel {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: 10px;
    padding: 16px;
    margin-bottom: 16px;
}

.panel h2 {
    margin: 0 0 12px;
    font-size: 1.15rem;
}

.button {
    display: inline-block;
    padding: 8px 16px;
    font: inherit;
    color: #fff;
    background: var(--color-primary);
    border: none;
    border-radius: 6px;
    cursor: pointer;
    text-decoration: none;
}

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

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

.button.secondary:hover {
    background: #fff3dc;
}

.back-link {
    display: inline-block;
    margin-bottom: 8px;
    color: var(--color-primary-dark);
    text-decoration: none;
}

.back-link:hover {
    text-decoration: underline;
}

/* セーブ・ロード */
.save-toolbar {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px;
}

.save-toolbar .save-status {
    margin-left: auto;
    font-size: 0.9rem;
    color: var(--color-muted);
}

.unsaved-banner {
    position: sticky;
    top: 0;
    z-index: 10;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 12px;
    padding: 10px 16px;
    background: var(--color-warn-bg);
    border-bottom: 2px solid var(--color-warn-border);
}

.unsaved-banner[hidden] {
    display: none;
}

.unsaved-banner span {
    flex: 1 1 auto;
    font-weight: bold;
}

.toast {
    margin-top: 8px;
    font-size: 0.9rem;
}

.toast.error {
    color: var(--color-error);
}

.toast.ok {
    color: var(--color-ok);
}