:root {
    color-scheme: light;
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.5rem;
    --space-6: 2rem;
    --space-7: 2.5rem;
    --space-8: 3rem;
    --ui-radius-sm: 0.5rem;
    --ui-radius-md: 0.75rem;
    --ui-radius-lg: 1rem;
    --ui-radius-xl: 1.25rem;
    --ui-font-size-xs: 0.75rem;
    --ui-font-size-sm: 0.875rem;
    --ui-font-size-md: 1rem;
    --ui-font-size-lg: 1.25rem;
    --ui-font-size-xl: 1.5rem;
    --ui-line-height-tight: 1.25;
    --ui-line-height-base: 1.5;
    --brand-champagne-1: #b99658;
    --brand-champagne-2: #9b7a43;
    --brand-champagne-3: #876637;
    --brand-champagne-4: #75582f;
    --brand-champagne-text: #f9f5ec;
}

body {
    font-family: Inter, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    font-size: var(--ui-font-size-md);
    line-height: var(--ui-line-height-base);
    color: #0f172a;
    background: #f1f5f9;
}

h1,
h2,
h3 {
    line-height: var(--ui-line-height-tight);
    letter-spacing: -0.01em;
    color: #0f172a;
}

h1 {
    font-size: var(--ui-font-size-xl);
    font-weight: 700;
}

h2 {
    font-size: var(--ui-font-size-lg);
    font-weight: 650;
}

h3 {
    font-size: var(--ui-font-size-md);
    font-weight: 600;
}

.ui-page-title {
    font-size: clamp(1.25rem, 1.5vw + 0.9rem, 1.8rem);
    font-weight: 700;
    line-height: 1.15;
}

.ui-page-subtitle {
    margin-top: var(--space-1);
    font-size: var(--ui-font-size-sm);
    color: #475569;
}

.ui-stack-sm > * + * {
    margin-top: var(--space-2);
}

.ui-stack-md > * + * {
    margin-top: var(--space-4);
}

.ui-stack-lg > * + * {
    margin-top: var(--space-5);
}

.ui-panel {
    border: 1px solid #e2e8f0;
    border-radius: var(--ui-radius-xl);
    background: #ffffff;
    box-shadow: 0 1px 2px rgba(15, 23, 42, 0.06), 0 12px 24px rgba(15, 23, 42, 0.05);
}

.ui-panel-header {
    padding: var(--space-4) var(--space-5);
    border-bottom: 1px solid #e2e8f0;
}

.ui-panel-body {
    padding: var(--space-5);
}

label {
    line-height: 1.4;
}

input[type='text'],
input[type='number'],
input[type='email'],
input[type='password'],
input[type='date'],
input[type='datetime-local'],
input[type='search'],
input[type='url'],
input[type='tel'],
select,
textarea,
input[type='button'],
input[type='submit'],
input[type='reset'] {
    min-height: 2.5rem;
    box-sizing: border-box;
    border-radius: var(--ui-radius-sm);
    border: 1px solid #cbd5e1;
    background: #ffffff;
    color: #0f172a;
    padding: 0.55rem 0.75rem;
    line-height: 1.2;
    transition: border-color 0.15s ease, box-shadow 0.15s ease, background-color 0.15s ease;
}

input[type='text']:focus,
input[type='number']:focus,
input[type='email']:focus,
input[type='password']:focus,
input[type='date']:focus,
input[type='datetime-local']:focus,
input[type='search']:focus,
input[type='url']:focus,
input[type='tel']:focus,
select:focus,
textarea:focus {
    outline: none;
    border-color: #38bdf8;
    box-shadow: 0 0 0 3px rgba(56, 189, 248, 0.2);
}

button,
.btn-primary,
.btn-secondary,
.btn-danger,
.btn-icon {
    min-height: 2.25rem;
    line-height: 1.2;
    text-align: center;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    box-sizing: border-box;
    border-radius: 0.6rem;
    padding: 0.5rem 0.85rem;
    font-weight: 600;
    transition: all 0.16s ease-in-out;
}

.btn-primary {
    border: 1px solid var(--brand-champagne-3);
    background: linear-gradient(135deg, var(--brand-champagne-1) 0%, var(--brand-champagne-2) 100%);
    color: var(--brand-champagne-text);
    box-shadow: 0 6px 14px rgba(117, 88, 47, 0.2);
}

.btn-primary:hover {
    background: linear-gradient(135deg, #aa874d 0%, #8c6c3b 100%);
    border-color: var(--brand-champagne-4);
    transform: translateY(-1px);
}

.btn-secondary {
    border: 1px solid #cbd5e1;
    background: #f8fafc;
    color: #0f172a;
}

.btn-secondary:hover {
    background: #f1f5f9;
    border-color: #94a3b8;
}

.btn-danger {
    border: 1px solid #fecdd3;
    background: #fff1f2;
    color: #be123c;
}

.btn-danger:hover {
    background: #ffe4e6;
    border-color: #fda4af;
}

.btn-icon {
    width: 2.1rem;
    height: 2.1rem;
    padding: 0;
    border: 1px solid #cbd5e1;
    background: #f8fafc;
    color: #0f172a;
}

.btn-icon:hover {
    background: #f1f5f9;
    border-color: #94a3b8;
}

.btn-icon.btn-icon-danger {
    border-color: #fecdd3;
    background: #fff1f2;
    color: #be123c;
}

.btn-icon.btn-icon-danger:hover {
    background: #ffe4e6;
    border-color: #fda4af;
}

input[type='date'],
input[type='datetime-local'] {
    padding-right: 24px;
}

input[type='date']::-webkit-calendar-picker-indicator,
input[type='datetime-local']::-webkit-calendar-picker-indicator {
    opacity: 0.8;
    cursor: pointer;
    transition: opacity 0.12s ease-in-out;
}

input[type='date']:hover::-webkit-calendar-picker-indicator,
input[type='date']:focus::-webkit-calendar-picker-indicator,
input[type='datetime-local']:hover::-webkit-calendar-picker-indicator,
input[type='datetime-local']:focus::-webkit-calendar-picker-indicator {
    opacity: 1;
}

.ui-table-wrap {
    overflow: auto;
    border: 1px solid #e2e8f0;
    border-radius: var(--ui-radius-lg);
    background: #ffffff;
}

.ui-table {
    width: 100%;
    min-width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    font-size: var(--ui-font-size-sm);
}

.ui-table thead {
    position: sticky;
    top: 0;
    z-index: 1;
}

.ui-table th {
    background: #f8fafc;
    color: #334155;
    font-weight: 650;
    text-align: left;
    border-bottom: 1px solid #e2e8f0;
}

.ui-table th,
.ui-table td {
    padding: 0.72rem 0.85rem;
    vertical-align: middle;
}

.ui-table tbody tr:nth-child(odd) {
    background: #fcfdff;
}

.ui-table tbody tr + tr td {
    border-top: 1px solid #f1f5f9;
}

.ui-table tbody tr:hover {
    background: #f8fafc;
}

.ui-table td.is-numeric,
.ui-table th.is-numeric {
    text-align: right;
    font-variant-numeric: tabular-nums;
}

.ui-form-grid {
    display: grid;
    grid-template-columns: repeat(1, minmax(0, 1fr));
    gap: var(--space-4);
}

@media (min-width: 768px) {
    .ui-form-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

.ui-field {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.ui-icon {
    width: 1rem;
    height: 1rem;
    stroke-width: 2;
    flex: 0 0 auto;
}