:root {
    --color-bg: #f4f7fb;
    --color-surface: #ffffff;
    --color-surface-alt: #e9f2fb;
    --color-primary: #9ec7eb;
    --color-primary-strong: #6ea7d7;
    --color-border: #cdd9e5;
    --color-text: #1f2a36;
    --color-muted: #5f6e7f;
    --color-danger: #c85151;
    --shadow-soft: 0 10px 22px rgba(56, 88, 118, 0.08);
    --radius-lg: 18px;
    --radius-md: 12px;
    --radius-sm: 10px;
}

* { box-sizing: border-box; }

html,
body {
    margin: 0;
    padding: 0;
    font-family: 'Segoe UI', Arial, sans-serif;
    color: var(--color-text);
    background:
        radial-gradient(circle at 10% 10%, #dceeff 0%, transparent 40%),
        radial-gradient(circle at 85% 5%, #f1f7ff 0%, transparent 35%),
        var(--color-bg);
    min-height: 100vh;
}

a { color: inherit; text-decoration: none; }
#app { min-height: 100vh; }

.app-shell { min-height: 100vh; display: flex; flex-direction: column; }

.topbar {
    position: sticky;
    top: 0;
    z-index: 20;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 14px 20px;
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(8px);
    border-bottom: 1px solid var(--color-border);
}

.brand { font-weight: 700; letter-spacing: 0.02em; }
.topnav { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.topnav-link { padding: 8px 12px; border-radius: var(--radius-sm); color: var(--color-muted); }
.topnav-link.active { background: var(--color-surface-alt); color: var(--color-text); }

.content { width: min(1160px, 100%); margin: 0 auto; padding: 20px 16px 32px; }
.page { display: grid; gap: 16px; }
.login-page { min-height: calc(100vh - 110px); place-items: center; }
.login-card { width: min(460px, 100%); }

.card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-soft);
    padding: 16px;
}

.card-header { display: flex; justify-content: space-between; align-items: center; gap: 10px; flex-wrap: wrap; }
h1,h2,h3,h4 { margin: 0 0 10px; }
p { margin: 0 0 10px; line-height: 1.45; }
small,.muted { color: var(--color-muted); }

label { font-size: 0.9rem; color: var(--color-muted); margin-top: 10px; display: block; }

input,textarea,select {
    width: 100%;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    padding: 10px 12px;
    margin-top: 6px;
    font: inherit;
    background: #fff;
}

button { font: inherit; border: 0; cursor: pointer; }

.primary-btn,
.ghost-btn,
.danger-btn { border-radius: 999px; padding: 9px 14px; min-height: 38px; }
.primary-btn { background: linear-gradient(135deg, var(--color-primary), var(--color-primary-strong)); color: #123; font-weight: 600; }
.ghost-btn { background: #eef3f9; color: var(--color-text); }
.danger-btn { background: #f8e3e3; color: #6f2020; }
.primary-btn:disabled,.ghost-btn:disabled,.danger-btn:disabled { opacity: 0.6; cursor: not-allowed; }

.inline-actions { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }

.error-box,.info-box { border-radius: var(--radius-md); padding: 10px 12px; margin-bottom: 10px; }
.error-box { background: #fdecec; border: 1px solid #f4caca; color: #7b2626; }
.info-box { background: #ecf6ff; border: 1px solid #d2e8fb; color: #1c4463; }
.auth-switch { margin-top: 14px; text-align: center; }
.text-link { color: #316f9f; font-weight: 700; }
.text-link:hover { text-decoration: underline; }

.notice-banner {
    display: flex;
    justify-content: space-between;
    gap: 12px;
    align-items: center;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    background: #f6fbff;
    padding: 12px 14px;
    margin-bottom: 12px;
}
.notice-text { color: var(--color-muted); font-size: 0.92rem; }

.week-grid { display: grid; grid-template-columns: repeat(7, minmax(0, 1fr)); gap: 10px; }
.day-column { border: 1px solid var(--color-border); border-radius: var(--radius-md); padding: 10px; background: #fbfdff; min-height: 170px; }
.day-column.today { border-color: var(--color-primary-strong); box-shadow: inset 0 0 0 1px var(--color-primary); }

.event-item {
    width: 100%;
    text-align: left;
    border: 1px solid #dce9f6;
    background: #f2f8ff;
    border-radius: 10px;
    padding: 8px;
    margin-top: 7px;
}

.reminder-item {
    display: flex;
    justify-content: space-between;
    gap: 10px;
    padding: 8px 0;
    border-bottom: 1px solid #e7eef6;
}

.plan-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }
.plan-day { border: 1px solid var(--color-border); border-radius: var(--radius-md); background: #f9fcff; padding: 10px; }
.plan-day ul { margin: 8px 0 0 18px; padding: 0; }

.filter-grid,
.form-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }

.dish-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; margin-top: 12px; }
.dish-card { display: flex; flex-direction: column; gap: 4px; }
.dish-modal { width: min(900px, 100%); max-height: 92vh; overflow: auto; }
.subsection { margin-top: 14px; }
.ingredient-row { display: grid; grid-template-columns: 1.4fr 0.7fr 0.7fr 1fr auto; gap: 8px; align-items: center; margin-top: 8px; }
.detail-grid { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(0, 0.8fr); gap: 12px; margin: 12px 0; }
.clean-list { margin: 0; padding-left: 18px; }
.clean-list li { margin: 6px 0; }
.pre-wrap { white-space: pre-wrap; }
.full-width { width: 100%; margin-top: 8px; }

.notes-layout { display: grid; grid-template-columns: 300px 1fr; gap: 12px; }
.note-list { display: grid; gap: 10px; }
.note-card p { white-space: pre-wrap; }

.budget-summary-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; margin-bottom: 12px; }
.summary-card { display: grid; gap: 6px; }
.summary-card strong { font-size: 1.5rem; }
.income-text { color: #237048; font-weight: 700; }
.expense-text { color: #9d3838; font-weight: 700; }
.budget-filter-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 10px; }
.budget-actions { margin-top: 12px; }
.budget-layout { display: grid; grid-template-columns: minmax(280px, 380px) 1fr; gap: 12px; margin: 12px 0; }
.person-list { display: grid; gap: 8px; margin-top: 12px; }
.person-row,
.summary-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 10px;
    border-bottom: 1px solid #e5edf6;
    padding: 9px 0;
    flex-wrap: wrap;
}
.summary-list { display: grid; gap: 4px; }
.table-wrap { overflow-x: auto; }
.budget-table { width: 100%; border-collapse: collapse; font-size: 0.92rem; }
.budget-table th,
.budget-table td { border-bottom: 1px solid #e5edf6; padding: 8px; text-align: left; vertical-align: top; }
.budget-table th:nth-child(4),
.budget-table td:nth-child(4) { text-align: right; }

.device-table { width: 100%; border-collapse: collapse; font-size: 0.92rem; }
.device-table th,
.device-table td { border-bottom: 1px solid #e5edf6; padding: 8px; text-align: left; vertical-align: top; }
.mono { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; }

.modal-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(22, 34, 49, 0.45);
    display: grid;
    place-items: center;
    padding: 16px;
    z-index: 40;
}

.modal-card {
    width: min(600px, 100%);
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-soft);
    padding: 16px;
}

.modal-actions { display: flex; justify-content: flex-end; gap: 8px; }

@media (max-width: 1000px) {
    .week-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .notes-layout { grid-template-columns: 1fr; }
    .budget-summary-grid,
    .budget-filter-grid,
    .budget-layout { grid-template-columns: 1fr; }
    .plan-grid { grid-template-columns: 1fr; }
    .dish-grid,
    .detail-grid,
    .filter-grid,
    .form-grid { grid-template-columns: 1fr; }
    .ingredient-row { grid-template-columns: 1fr; }
}

@media (max-width: 620px) {
    .week-grid { grid-template-columns: 1fr; }
    .content { padding: 16px 10px 24px; }
    .topbar { flex-direction: column; align-items: flex-start; gap: 8px; }
}

.loading-progress { width: 5rem; height: 5rem; margin: 10vh auto 1rem; display: block; }
.loading-progress circle { fill: none; stroke-width: 0.5rem; transform-origin: 50% 50%; transform: rotate(-90deg); }
.loading-progress circle:first-child { stroke: #dbe7f3; }
.loading-progress circle:last-child {
    stroke: var(--color-primary-strong);
    stroke-dasharray: calc(40 * 2 * 3.14159);
    stroke-dashoffset: calc(40 * 2 * 3.14159 * 0.75);
    animation: progress 1.2s linear infinite;
}
.loading-progress-text { text-align: center; color: var(--color-muted); }
@keyframes progress { to { stroke-dashoffset: calc(40 * 2 * 3.14159 * 0.2); } }