:root {
    --ink: #1f1a17;
    --ink-soft: #4b3f39;
    --cream: #f7f2ea;
    --paper: #fffaf2;
    --accent: #b2482f;
    --accent-soft: #d9977b;
    --sage: #386b59;
    --shadow: 0 18px 45px rgba(25, 14, 5, 0.12);
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: "Palatino Linotype", "Book Antiqua", Palatino, serif;
    color: var(--ink);
    background: radial-gradient(circle at top, #fdf7ed 0%, #f1e4d2 55%, #e7d7c3 100%);
    min-height: 100vh;
}

.site-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 22px 40px;
    background: rgba(255, 250, 242, 0.9);
    backdrop-filter: blur(6px);
    border-bottom: 1px solid rgba(107, 76, 59, 0.12);
}

.brand {
    display: flex;
    gap: 16px;
    align-items: center;
}

.logo {
    width: 44px;
    height: 44px;
    border-radius: 12px;
    background: linear-gradient(135deg, var(--accent), #e3b29d);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    letter-spacing: 0.08em;
}

.brand-name {
    font-size: 1.2rem;
    font-weight: 700;
}

.brand-sub {
    font-size: 0.85rem;
    color: var(--ink-soft);
}

.nav a {
    margin-left: 16px;
    color: var(--ink);
    text-decoration: none;
    font-weight: 600;
}

.nav a:hover {
    color: var(--accent);
}

.nav-quiet {
    opacity: 0.7;
}

.container {
    max-width: 1100px;
    margin: 32px auto;
    padding: 0 28px 40px;
    animation: fadeIn 0.6s ease-in;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
}

.card {
    background: var(--paper);
    border-radius: 18px;
    padding: 24px;
    box-shadow: var(--shadow);
    border: 1px solid rgba(107, 76, 59, 0.08);
}

.grid {
    display: grid;
    gap: 20px;
}

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

.summary-grid {
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

h1, h2, h3 {
    font-family: "Trebuchet MS", "Segoe UI", sans-serif;
    margin-top: 0;
}

h1 {
    font-size: 2rem;
}

h2 {
    font-size: 1.4rem;
}

.button {
    display: inline-block;
    padding: 10px 16px;
    background: var(--accent);
    color: #fff;
    border-radius: 999px;
    text-decoration: none;
    font-weight: 600;
    border: none;
    cursor: pointer;
}

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

.table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 12px;
}

.table th,
.table td {
    padding: 10px 8px;
    border-bottom: 1px solid rgba(107, 76, 59, 0.12);
    text-align: left;
    font-size: 0.95rem;
}

.form-grid {
    display: grid;
    gap: 16px;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

label {
    font-weight: 600;
    display: block;
    margin-bottom: 6px;
}

input, select, textarea {
    width: 100%;
    padding: 10px 12px;
    border-radius: 10px;
    border: 1px solid rgba(107, 76, 59, 0.18);
    font-family: inherit;
    background: #fff;
}

textarea {
    min-height: 110px;
}

.flash {
    background: #f8e8de;
    border-left: 4px solid var(--accent);
    padding: 12px 16px;
    border-radius: 10px;
    margin-bottom: 18px;
}

.badge {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 999px;
    font-size: 0.8rem;
    background: rgba(56, 107, 89, 0.12);
    color: var(--sage);
}

.badge.provisional {
    background: rgba(178, 72, 47, 0.15);
    color: var(--accent);
}

.badge.paid {
    background: rgba(56, 107, 89, 0.16);
    color: var(--sage);
}

.badge.unpaid {
    background: rgba(178, 72, 47, 0.15);
    color: var(--accent);
}

.badge.partial {
    background: rgba(146, 108, 23, 0.16);
    color: #8c6514;
}

.muted {
    color: var(--ink-soft);
    font-size: 0.85rem;
}

.summary-money {
    font-size: 2rem;
    font-weight: 700;
    margin: 0 0 8px;
}

.invoice-filter-form {
    align-items: end;
}

.invoice-filter-actions {
    display: flex;
    align-items: end;
}

.term-settings-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 16px;
}

.term-settings-row {
    padding: 16px;
    border: 1px solid rgba(107, 76, 59, 0.12);
    border-radius: 14px;
    background: rgba(255, 250, 242, 0.75);
}

.calendar {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 10px;
    margin-top: 16px;
}

.calendar-day {
    min-height: 120px;
    padding: 10px;
    border-radius: 14px;
    background: #fff;
    border: 1px solid rgba(107, 76, 59, 0.1);
    position: relative;
}

.calendar-day .date {
    font-weight: 700;
    color: var(--ink-soft);
}

.calendar-day .count {
    position: absolute;
    top: 10px;
    right: 10px;
    background: var(--accent-soft);
    color: #3b2016;
    border-radius: 10px;
    padding: 2px 8px;
    font-size: 0.75rem;
}

.calendar-item {
    margin-top: 6px;
    font-size: 0.85rem;
}

.calendar-nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 10px;
}

.recurring-booking-callout {
    padding: 18px 20px;
    border-radius: 16px;
    border: 2px solid rgba(178, 72, 47, 0.24);
    background: linear-gradient(135deg, rgba(178, 72, 47, 0.08), rgba(217, 151, 123, 0.18));
}

.recurring-booking-title {
    margin: 0 0 10px;
    font-family: "Trebuchet MS", "Segoe UI", sans-serif;
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--ink);
}

.recurring-booking-toggle {
    display: flex;
    align-items: center;
    gap: 12px;
    margin: 0;
    padding: 12px 14px;
    border-radius: 14px;
    background: rgba(255, 250, 242, 0.9);
    border: 1px solid rgba(107, 76, 59, 0.14);
    cursor: pointer;
    font-size: 1.02rem;
}

.recurring-booking-toggle input[type="checkbox"] {
    width: 22px;
    height: 22px;
    margin: 0;
    accent-color: var(--accent);
    flex: 0 0 auto;
}

.recurring-booking-toggle span {
    font-weight: 700;
}

.recurring-booking-help {
    margin: 10px 0 0;
    color: var(--ink-soft);
}

.site-footer {
    text-align: center;
    padding: 20px;
    color: var(--ink-soft);
}

@media (max-width: 720px) {
    .site-header {
        flex-direction: column;
        gap: 12px;
        text-align: center;
    }

    .nav a {
        margin-left: 8px;
    }

    .calendar {
        grid-template-columns: repeat(2, 1fr);
    }
}