* {
    box-sizing: border-box
}

body {
    margin: 0;
    font-family: "Sarabun", system-ui, sans-serif;
    background: #f5f7fa;
    color: #111827
}

.app-header {
    background: linear-gradient(135deg, #0d6efd, #0f766e);
    color: #fff;
    text-align: center;
    padding: 14px 12px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, .18)
}

.header-title {
    font-size: 1.25rem;
    font-weight: 800
}

.header-subtitle {
    font-size: .92rem;
    opacity: .95;
    margin-top: 3px
}

.nav-tabs {
    position: sticky;
    top: 0;
    z-index: 50;
    background: #fff;
    display: flex;
    gap: 8px;
    padding: 10px;
    overflow-x: auto;
    border-bottom: 1px solid #e5e7eb
}

.tab-btn {
    border: 0;
    border-radius: 999px;
    background: #e8f0fe;
    color: #0d47a1;
    padding: 10px 14px;
    white-space: nowrap;
    font-weight: 700
}

.tab-btn.active {
    background: #0f766e;
    color: #fff
}

.page {
    display: none
}

.page.active {
    display: block
}

.calendar-frame {
    width: 100%;
    height: calc(100vh - 125px);
    border: 0
}

.padded {
    padding: 14px;
    max-width: 1050px;
    margin: auto
}

.card {
    background: #fff;
    border-radius: 18px;
    padding: 16px;
    margin-bottom: 14px;
    box-shadow: 0 3px 12px rgba(0, 0, 0, .08)
}

h2 {
    margin: 0 0 12px;
    color: #0f766e;
    font-size: 1.15rem
}

.grid {
    display: grid;
    gap: 10px
}

.grid.two {
    grid-template-columns: 1fr 1fr
}

input,
select,
textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid #d1d5db;
    border-radius: 12px;
    font-size: 1rem;
    margin-top: 9px;
    background: #fff
}

select[multiple] {
    min-height: 145px
}

textarea {
    min-height: 90px;
    resize: vertical
}

label {
    font-weight: 700;
    color: #374151
}

.check-line {
    display: flex;
    gap: 8px;
    align-items: center;
    margin-top: 10px
}

.check-line input {
    width: auto;
    margin: 0
}

.primary,
.secondary {
    width: 100%;
    border: 0;
    border-radius: 12px;
    padding: 12px;
    margin-top: 12px;
    color: #fff;
    font-weight: 800;
    font-size: 1rem
}

.primary {
    background: #0f766e
}

.secondary {
    background: #0d6efd
}

.muted {
    color: #6b7280
}

.list-wrap {
    display: grid;
    gap: 10px
}

.list-card {
    background: #fff;
    border-left: 6px solid #0f766e;
    border-radius: 16px;
    padding: 12px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, .08)
}

.list-card.director {
    border-left-color: #dc2626
}

.list-date {
    font-size: .85rem;
    color: #6b7280
}

.list-title {
    font-weight: 800;
    margin-top: 4px
}

.list-meta {
    font-size: .92rem;
    color: #374151;
    margin-top: 4px
}

.badge {
    display: inline-block;
    margin-top: 6px;
    padding: 3px 8px;
    border-radius: 999px;
    background: #dc2626;
    color: #fff;
    font-size: .75rem
}

.people-list {
    display: grid;
    gap: 8px
}

.person-chip {
    padding: 10px;
    border-radius: 12px;
    background: #f0fdfa;
    border: 1px solid #ccfbf1
}

.toast {
    position: fixed;
    left: 50%;
    bottom: 20px;
    transform: translateX(-50%);
    background: #111827;
    color: white;
    padding: 12px 16px;
    border-radius: 999px;
    display: none;
    z-index: 999
}

.toast.show {
    display: block
}

@media(max-width:650px) {
    .header-title {
        font-size: 1.05rem
    }

    .header-subtitle {
        font-size: .8rem
    }

    .padded {
        padding: 10px
    }

    .grid.two {
        grid-template-columns: 1fr
    }

    .calendar-frame {
        height: calc(100vh - 120px)
    }

    .card {
        border-radius: 16px;
        padding: 14px
    }

    .tab-btn {
        font-size: .86rem;
        padding: 9px 12px
    }
}