:root {
    --bg: #eff4f3;
    --panel: #ffffff;
    --ink: #12343a;
    --muted: #5f7479;
    --line: #d5e1df;
    --brand: #2b5c63;
    --brand-soft: #8bb2b7;
    --accent: #b60f0f;
    --warning: #c07a11;
    --success: #0e7c52;
    --partial: #a55717;
    --shadow: 0 20px 50px rgba(18, 52, 58, 0.08);
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
    background:
        radial-gradient(circle at top right, rgba(139, 178, 183, 0.45), transparent 25%),
        linear-gradient(180deg, #f8fbfa 0%, var(--bg) 100%);
    color: var(--ink);
}

.page-shell {
    max-width: 1400px;
    margin: 0 auto;
    padding: 20px;
}

.hero {
    background: linear-gradient(90deg, #355a5f 0%, #9cc6cb 52%, #355a5f 100%);
    color: #fff;
    display: flex;
    justify-content: space-between;
    gap: 24px;
    padding: 24px 28px;
    border-radius: 18px;
    box-shadow: var(--shadow);
    align-items: stretch;
}

.eyebrow {
    margin: 0 0 8px;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    font-size: 0.7rem;
    opacity: 0.85;
}

.hero h1 {
    margin: 0;
    font-size: clamp(1.8rem, 3vw, 2.8rem);
    line-height: 0.95;
    text-transform: uppercase;
}

.hero-copy {
    max-width: 720px;
    margin: 12px 0 0;
    font-size: 0.92rem;
}

.year-card {
    min-width: 96px;
    background: var(--accent);
    border-radius: 16px 16px 0 0;
    font-size: 1.8rem;
    font-weight: 800;
    display: grid;
    place-items: center;
    padding: 14px;
}

.layout {
    display: grid;
    gap: 16px;
    margin-top: 18px;
}

.panel {
    background: var(--panel);
    border-radius: 18px;
    box-shadow: var(--shadow);
    padding: 18px;
}

.panel-title-row,
.actions-row,
.pagination-row,
.tabs,
.account-summary {
    display: flex;
    gap: 12px;
    align-items: center;
}

.panel-title-row,
.pagination-row {
    justify-content: space-between;
}

.panel-title-row {
    margin-bottom: 14px;
}

.panel-title-row h2 {
    margin: 0;
    font-size: 0.98rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.stats-grid,
.account-summary {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
    gap: 12px;
}

.stat-card,
.account-card {
    padding: 15px;
    border: 1px solid var(--line);
    border-radius: 14px;
    background: linear-gradient(180deg, #fdfefe 0%, #f4f8f7 100%);
}

.account-card.emphasis {
    background: linear-gradient(180deg, #fff9ec 0%, #fff1cf 100%);
}

.stat-card span,
.account-card span {
    display: block;
    font-size: 0.76rem;
    color: var(--muted);
    margin-bottom: 6px;
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

.stat-card strong,
.account-card strong {
    font-size: 1.5rem;
}

.actions-row {
    flex-wrap: wrap;
    justify-content: flex-end;
}

.page-size-label {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-weight: 600;
    font-size: 0.85rem;
}

.page-size-label select,
.ghost-button {
    border: 1px solid var(--line);
    border-radius: 10px;
    padding: 8px 10px;
    font: inherit;
    color: var(--ink);
    background: #fff;
}

.ghost-button {
    cursor: pointer;
    font-weight: 700;
    font-size: 0.84rem;
}

.ghost-button:hover {
    background: #f1f7f6;
}

.ghost-button:disabled {
    opacity: 0.45;
    cursor: default;
}

.notice,
.legend,
.badge-count {
    color: var(--muted);
    font-size: 0.78rem;
}

.tabs {
    margin-bottom: 12px;
}

.tab-button {
    border: 1px solid var(--line);
    border-radius: 999px;
    background: #f6fbfa;
    color: var(--ink);
    padding: 9px 14px;
    font: inherit;
    font-weight: 700;
    font-size: 0.84rem;
    cursor: pointer;
}

.tab-button.active {
    background: var(--brand);
    border-color: var(--brand);
    color: #fff;
}

.tab-panel {
    display: none;
}

.tab-panel.active {
    display: block;
}

.table-wrap {
    overflow-x: auto;
    border-radius: 12px;
    border: 1px solid var(--line);
}

.table-wrap + .pagination-row {
    margin-top: 12px;
}

.compact-table {
    width: 100%;
    border-collapse: collapse;
    min-width: 920px;
    font-size: 0.8rem;
}

.payments-table {
    min-width: 700px;
}

.compact-table thead th {
    background: #2e5960;
    color: #fff;
    text-transform: uppercase;
    font-size: 0.68rem;
    letter-spacing: 0.05em;
    padding: 9px 7px;
    position: sticky;
    top: 0;
    z-index: 1;
}

.compact-table tbody td {
    padding: 8px 7px;
    border-bottom: 1px solid var(--line);
    vertical-align: top;
    line-height: 1.15;
}

.compact-table tbody tr:nth-child(even) {
    background: #d7e8eb;
}

.compact-table tbody tr:hover {
    background: #fdf3b8;
}

.payments-table thead th,
.payments-table tbody td {
    text-align: center;
    vertical-align: middle;
}

.empty-state {
    text-align: center;
    color: var(--muted);
    padding: 26px 10px;
}

.status-pill {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    border-radius: 999px;
    padding: 4px 7px;
    font-size: 0.64rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    white-space: nowrap;
}

.status-pill.recibido,
.status-pill.pendiente-de-pago {
    background: rgba(192, 122, 17, 0.14);
    color: var(--warning);
}

.status-pill.en-proceso,
.status-pill.abono-parcial {
    background: rgba(165, 87, 23, 0.14);
    color: var(--partial);
}

.status-pill.listo-para-entrega,
.status-pill.pagado,
.status-pill.entregado {
    background: rgba(14, 124, 82, 0.12);
    color: var(--success);
}

.status-pill.cancelado {
    background: rgba(182, 15, 15, 0.12);
    color: var(--accent);
}

@media (max-width: 900px) {
    .panel-title-row,
    .actions-row,
    .pagination-row {
        flex-direction: column;
        align-items: stretch;
    }

    .pagination-row {
        text-align: center;
    }
}

@media (max-width: 760px) {
    .page-shell {
        padding: 12px;
    }

    .hero {
        padding: 18px;
        flex-direction: column;
    }

    .year-card {
        min-width: 0;
        border-radius: 16px;
        min-height: 80px;
    }

    .stats-grid,
    .account-summary {
        grid-template-columns: 1fr;
    }
}