/* ND Invoices — estilos mobile-first (iPhone / iPad). Paleta del logotipo ND. */

:root {
    --navy: #0b1f44;
    --blue: #1458b0;
    --blue-soft: #e8effa;
    --gray-900: #1f2733;
    --gray-700: #46505e;
    --gray-500: #5d6673; /* texto secundario: contraste >= 4.5:1 también sobre el fondo gris */
    --gray-300: #c5ccd6;
    --gray-100: #eef1f5;
    --white: #ffffff;
    --danger-bg: #fdecec;
    --danger: #8a1c1c;
    --radius: 14px;
    --tap: 48px; /* objetivo táctil (Apple recomienda al menos 44 px) */
    --gutter: 16px;
}

*,
*::before,
*::after {
    box-sizing: border-box;
}

html {
    -webkit-text-size-adjust: 100%;
}

body {
    margin: 0;
    min-height: 100vh;
    min-height: 100dvh;
    background: var(--gray-100);
    color: var(--gray-900);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    font-size: 17px;
    line-height: 1.45;
    -webkit-tap-highlight-color: transparent;
}

a {
    color: var(--blue);
}

.app {
    width: 100%;
    max-width: 720px;
    margin: 0 auto;
    /* Correos, nombres y direcciones largos sin espacios se parten: nunca hay desplazamiento horizontal. */
    overflow-wrap: anywhere;
    padding:
        calc(var(--gutter) + env(safe-area-inset-top))
        calc(var(--gutter) + env(safe-area-inset-right))
        calc(var(--gutter) + env(safe-area-inset-bottom))
        calc(var(--gutter) + env(safe-area-inset-left));
}

/* --- Cabecera ---------------------------------------------------------- */

.appbar {
    display: flex;
    align-items: center;
    gap: 10px;
    min-height: var(--tap);
    margin-bottom: 12px;
}

.appbar__logo {
    width: 66px;
    height: auto;
}

.appbar__title {
    color: var(--navy);
    font-size: 1.15rem;
    font-weight: 700;
    letter-spacing: 0.01em;
}

/* --- Tarjetas ---------------------------------------------------------- */

.card {
    background: var(--white);
    border-radius: var(--radius);
    padding: 20px;
    box-shadow: 0 1px 3px rgba(11, 31, 68, 0.08);
}

.card + .card,
.tiles + .card,
.card + .tiles {
    margin-top: 16px;
}

.card--center {
    margin-top: 6vh;
    text-align: center;
}

.auth {
    max-width: 420px;
    margin-left: auto;
    margin-right: auto;
}

.logo {
    width: 200px;
    max-width: 70%;
    height: auto;
}

h1 {
    margin: 4px 0;
    color: var(--navy);
    font-size: 1.5rem;
    line-height: 1.25;
}

.eyebrow {
    margin: 0;
    color: var(--gray-500);
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.06em;
    text-transform: uppercase;
}

.muted {
    margin: 0;
    color: var(--gray-500);
}

.status {
    margin: 20px 0 0;
    color: var(--gray-700);
    font-size: 0.95rem;
}

/* --- Accesos principales ------------------------------------------------ */

.tiles {
    display: grid;
    grid-template-columns: 1fr;
    gap: 12px;
    margin-top: 16px;
}

.tile {
    display: flex;
    flex-direction: column;
    justify-content: center;
    min-height: 72px;
    padding: 14px 18px;
    border-radius: var(--radius);
    background: var(--white);
    color: var(--navy);
    text-decoration: none;
    box-shadow: 0 1px 3px rgba(11, 31, 68, 0.08);
}

.tile__title {
    font-size: 1.1rem;
    font-weight: 700;
}

.tile__hint {
    color: var(--gray-500);
    font-size: 0.9rem;
}

.tile--disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

/* --- Botones y formularios -------------------------------------------- */

.button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: var(--tap);
    padding: 0 20px;
    border: 1px solid transparent;
    border-radius: 12px;
    font: inherit;
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    touch-action: manipulation;
}

.button--primary {
    background: var(--navy);
    color: var(--white);
}

.button--primary:active {
    background: var(--blue);
}

.button--secondary {
    background: var(--white);
    color: var(--navy);
    border-color: var(--gray-300);
}

.button--block {
    width: 100%;
}

/* Menú de cuenta de Home (<details> nativo, cerrado al cargar). */
.account-menu {
    position: relative;
    margin-left: auto;
}

.account-menu__toggle {
    display: inline-flex;
    align-items: center;
    min-height: var(--tap);
    padding: 0 14px;
    border: 1px solid var(--gray-300);
    border-radius: 999px;
    background: var(--white);
    color: var(--navy);
    font-weight: 600;
    cursor: pointer;
    list-style: none;
}

.account-menu__toggle::-webkit-details-marker {
    display: none;
}

.account-menu__toggle::after {
    content: "▾";
    margin-left: 6px;
    font-size: 0.8em;
}

.account-menu[open] > .account-menu__toggle::after {
    content: "▴";
}

.account-menu__toggle:focus-visible {
    outline: 3px solid var(--blue);
    outline-offset: 2px;
}

.account-menu__panel {
    position: absolute;
    right: 0;
    z-index: 10;
    width: min(280px, calc(100vw - 2 * var(--gutter)));
    margin-top: 8px;
    padding: 12px;
    border-radius: var(--radius);
    background: var(--white);
    box-shadow: 0 6px 24px rgba(11, 31, 68, 0.18);
}

.account-menu__panel form + form {
    margin-top: 12px;
}

.form {
    margin-top: 20px;
    text-align: left;
}

.field {
    display: block;
    margin-bottom: 16px;
}

.field span {
    display: block;
    margin-bottom: 6px;
    font-weight: 600;
    font-size: 0.95rem;
}

.field input {
    width: 100%;
    min-height: var(--tap);
    padding: 10px 12px;
    border: 1px solid var(--gray-300);
    border-radius: 10px;
    background: var(--white);
    color: var(--gray-900);
    font: inherit;
    font-size: 17px; /* >= 16px evita el zoom automático de iOS */
}

/* Foco visible y con contraste suficiente en todos los controles (teclado de iPad, VoiceOver). */
.field input:focus-visible,
.field select:focus-visible,
.field textarea:focus-visible,
.search input:focus-visible,
.check input:focus-visible,
.picker__option input:focus-visible,
.button:focus-visible,
summary:focus-visible,
a:focus-visible {
    outline: 3px solid var(--blue);
    outline-offset: 2px;
}

/* Fecha en Safari iOS: sin aspecto nativo respeta el ancho y la altura del resto de campos. */
.field input[type="date"] {
    -webkit-appearance: none;
    appearance: none;
    display: block;
    min-width: 0;
}

.field input::-webkit-date-and-time-value {
    text-align: left;
}

/* Botones de bloque consecutivos (p. ej. confirmar y cancelar) nunca quedan pegados. */
.button--block + .button--block,
.check + .button--block {
    margin-top: 12px;
}

.check {
    display: flex;
    align-items: center;
    gap: 10px;
    min-height: var(--tap);
    margin-bottom: 8px;
    color: var(--gray-700);
}

.check input {
    width: 22px;
    height: 22px;
    accent-color: var(--blue);
}

.alert {
    margin: 16px 0 0;
    padding: 10px 12px;
    border-radius: 10px;
    background: var(--danger-bg);
    color: var(--danger);
    text-align: left;
}

/* --- Clientes ---------------------------------------------------------- */

.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    overflow: hidden;
    clip: rect(0 0 0 0);
    white-space: nowrap;
}

.appbar__back {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    min-height: var(--tap);
    padding-right: 12px;
    color: var(--blue);
    font-weight: 600;
    text-decoration: none;
}

.appbar__back span {
    font-size: 1.6rem;
    line-height: 1;
}

.appbar__logo--end {
    margin-left: auto;
}

.page-title {
    margin: 0 0 12px;
}

h2 {
    margin: 0 0 12px;
    color: var(--navy);
    font-size: 1.15rem;
}

.notice {
    margin: 0 0 12px;
    padding: 10px 12px;
    border-radius: 10px;
    background: var(--blue-soft);
    color: var(--navy);
    font-weight: 600;
}

.warning {
    margin: 0 0 16px;
    padding: 14px 16px;
    border-radius: var(--radius);
    background: #fff6e5;
    color: #6b4a00;
}

.warning h2 {
    color: #6b4a00;
}

.warning p,
.warning ul {
    margin: 0 0 8px;
}

.search {
    display: flex;
    gap: 8px;
    margin-bottom: 12px;
}

.search input {
    flex: 1;
    min-width: 0;
    min-height: var(--tap);
    padding: 10px 12px;
    border: 1px solid var(--gray-300);
    border-radius: 10px;
    font: inherit;
    font-size: 17px;
}

.list {
    margin: 16px 0 0;
    padding: 0;
    list-style: none;
}

.list > li + li {
    margin-top: 8px;
}

.list__item {
    display: flex;
    flex-direction: column;
    justify-content: center;
    min-height: 64px;
    padding: 10px 16px;
    border-radius: var(--radius);
    background: var(--white);
    color: var(--gray-900);
    text-decoration: none;
    box-shadow: 0 1px 3px rgba(11, 31, 68, 0.08);
}

.list__title {
    color: var(--navy);
    font-weight: 700;
}

.list__meta {
    color: var(--gray-500);
    font-size: 0.92rem;
}

/* Fila enlazada dentro de una tarjeta (historial de versiones): toda la fila es el objetivo táctil. */
.list__link {
    display: flex;
    flex-direction: column;
    gap: 2px;
    min-height: var(--tap);
    padding: 10px 0;
    color: var(--gray-900);
    text-decoration: none;
}

.list__link .list__title {
    color: var(--blue);
}

/* Acciones de la ficha de la factura separadas del texto que las rodea. */
.invoice-head .button--block {
    margin: 4px 0 12px;
}

.list--flat > li + li {
    margin-top: 0;
    border-top: 1px solid var(--gray-100);
}

.empty {
    margin: 24px 0;
    color: var(--gray-500);
    text-align: center;
}

.detail {
    display: flex;
    flex-wrap: wrap;
    gap: 4px 12px;
    margin: 0 0 12px;
}

.detail__label {
    min-width: 64px;
    color: var(--gray-500);
    font-weight: 600;
}

.address {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 12px 0;
}

.address > :first-child {
    min-width: 0;
}

.address__actions {
    display: flex;
    flex-shrink: 0;
    gap: 8px;
}

.button--quiet {
    background: transparent;
    color: var(--gray-700);
    border-color: transparent;
    text-decoration: underline;
}

.card--muted {
    background: #f7f8fa;
    box-shadow: none;
    border: 1px dashed var(--gray-300);
}

.address--archived {
    color: var(--gray-500);
}

.badge {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 999px;
    background: var(--gray-300);
    color: var(--gray-900);
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

.card .button--block + .button--block,
.card > .button--block {
    margin-top: 12px;
}

.field select {
    width: 100%;
    min-height: var(--tap);
    padding: 10px 12px;
    border: 1px solid var(--gray-300);
    border-radius: 10px;
    background: var(--white);
    color: var(--gray-900);
    font: inherit;
    font-size: 17px;
}

.field--error input,
.field--error select {
    border-color: var(--danger);
}

.field__error {
    display: block;
    margin-top: 6px;
    color: var(--danger);
    font-size: 0.9rem;
}

.field-row {
    display: grid;
    grid-template-columns: 1fr;
    gap: 0 12px;
}

.field-row > .field {
    min-width: 0;
}

.picker {
    margin: 0 0 16px;
    padding: 0;
    border: 0;
}

.picker legend {
    margin-bottom: 8px;
    font-weight: 600;
}

.picker__option {
    display: flex;
    gap: 12px;
    align-items: flex-start;
    min-height: var(--tap);
    padding: 12px;
    border: 1px solid var(--gray-300);
    border-radius: 12px;
}

.picker__option + .picker__option {
    margin-top: 8px;
}

.picker__option input {
    width: 22px;
    height: 22px;
    margin-top: 2px;
    accent-color: var(--blue);
}

/* --- Borradores de factura --------------------------------------------- */

.js .js-hidden {
    display: none;
}

.button--danger {
    background: var(--danger);
    color: var(--white);
}

.search--inline,
.field .search--inline { /* es un <span> dentro de .field: no hereda display:block ni el estilo de etiqueta */
    display: flex;
    gap: 8px;
    margin: 0;
    font-weight: normal;
}

.selected-client {
    margin: 0 0 12px;
}

.client-results {
    margin-top: 0;
}

/* Alta de cliente integrada en el editor de facturas. */
.inline-client {
    padding: 14px 14px 2px;
    border: 1px solid var(--gray-300);
    border-radius: var(--radius);
    background: var(--gray-100);
}

.inline-client h3 {
    margin: 0 0 12px;
    font-size: 17px;
    color: var(--navy);
}

.inline-client .alert {
    margin: 0 0 12px;
}

.inline-client__actions {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 12px;
}

.inline-client__actions .button {
    flex: 1 1 140px;
}

.draft-form .card + .card {
    margin-top: 16px;
}

.field textarea {
    width: 100%;
    min-height: var(--tap);
    padding: 10px 12px;
    border: 1px solid var(--gray-300);
    border-radius: 10px;
    background: var(--white);
    color: var(--gray-900);
    font: inherit;
    font-size: 17px; /* >= 16px evita el zoom automático de iOS */
    resize: vertical;
}

.field--error textarea {
    border-color: var(--danger);
}

.lines {
    margin: 0;
    padding: 0;
    list-style: none;
}

.line {
    padding: 12px 0;
    border-bottom: 1px solid var(--gray-100);
}

.line__numbers {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0 12px;
}

.line__amount {
    grid-column: 1 / -1;
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    color: var(--gray-700);
}

.line__amount output {
    color: var(--navy);
    font-size: 1.1rem;
    font-weight: 700;
    font-variant-numeric: tabular-nums;
}

.line__remove {
    min-height: var(--tap);
    padding-left: 0;
}

.total {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    margin: 16px 0 4px;
    color: var(--navy);
    font-size: 1.2rem;
    font-weight: 700;
}

.total output {
    font-size: 1.4rem;
    font-variant-numeric: tabular-nums;
}

.small {
    font-size: 0.85rem;
}

.sticky-actions {
    position: sticky;
    bottom: 0;
    margin-top: 16px;
    padding: 12px 0 calc(12px + env(safe-area-inset-bottom));
    background: linear-gradient(rgba(238, 241, 245, 0), var(--gray-100) 30%);
}

.summary-lines {
    margin: 0;
    padding: 0;
    list-style: none;
}

.summary-lines li {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 2px 12px;
    padding: 10px 0;
    border-bottom: 1px solid var(--gray-100);
}

.summary-lines__math {
    color: var(--gray-500);
    font-size: 0.92rem;
}

.summary-lines__amount {
    grid-column: 2;
    grid-row: 1 / span 2;
    align-self: center;
    font-weight: 700;
    font-variant-numeric: tabular-nums;
}

.invoice-number {
    margin: 0;
    color: var(--navy);
    font-size: 2.2rem;
    font-weight: 800;
    letter-spacing: 0.02em;
    font-variant-numeric: tabular-nums;
}

.small-heading {
    margin: 12px 0 4px;
    color: var(--navy);
    font-size: 1rem;
}

.button[disabled] {
    opacity: 0.6;
    cursor: progress;
}

.checklist {
    margin: 0 0 12px;
    padding-left: 20px;
    color: #6b4a00;
}

/* Diferencias entre versiones: antes tachado, después resaltado (texto largo con salto de línea). */
.diff {
    margin: 0 0 12px;
}

.diff dt {
    font-weight: 600;
    color: var(--gray-700);
    margin-top: 10px;
}

.diff dd {
    margin: 4px 0 0;
    overflow-wrap: anywhere;
}

.diff del,
.diff ins {
    display: block;
    padding: 4px 8px;
    border-radius: 6px;
    text-decoration: none;
}

.diff del {
    background: var(--danger-bg);
    color: var(--danger);
}

.diff del::before {
    content: "Before: ";
    font-weight: 600;
}

.diff ins {
    background: var(--blue-soft);
    color: var(--navy);
    margin-top: 4px;
}

.diff ins::before {
    content: "After: ";
    font-weight: 600;
}

.total del {
    color: var(--gray-500);
    margin-right: 6px;
}

.total ins {
    text-decoration: none;
}

/* Historial: pestañas Issued / Drafts, filtros, estados y páginas. */
.tabs {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4px;
    padding: 4px;
    margin-bottom: 12px;
    border-radius: 12px;
    background: #dfe4eb; /* se distingue del fondo de la página */
}

.tabs__tab {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 44px;
    border-radius: 9px;
    color: var(--gray-700);
    font-weight: 600;
    text-decoration: none;
}

.tabs__tab[aria-current="page"] {
    background: var(--white);
    color: var(--navy);
    box-shadow: 0 1px 3px rgba(11, 31, 68, 0.15);
}

.history-search {
    margin-top: 12px;
}

.history-search .field {
    margin-bottom: 8px;
}

.history-dates summary {
    min-height: 44px;
    display: flex;
    align-items: center;
    color: var(--blue);
    font-weight: 600;
    cursor: pointer;
}

.field-row.field-row--even {
    grid-template-columns: 1fr 1fr;
}

.chips {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin: 12px 0;
}

.chip {
    display: inline-flex;
    align-items: center;
    min-height: 44px;
    padding: 0 14px;
    border: 1px solid var(--gray-300);
    border-radius: 999px;
    background: var(--white);
    color: var(--gray-700);
    font-size: 0.92rem;
    font-weight: 600;
    text-decoration: none;
}

.chip[aria-current="true"] {
    border-color: var(--navy);
    background: var(--navy);
    color: var(--white);
}

.status-tag {
    display: inline-block;
    margin-right: 6px;
    font-size: 0.85rem;
}

.status-tag--warn {
    color: #8a5a00;
    font-weight: 600;
}

.pager {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    align-items: center;
    gap: 8px;
    margin: 16px 0 4px;
}

.pager .button[aria-disabled="true"] {
    opacity: 0.4;
}

.pager__status {
    color: var(--gray-700);
    font-size: 0.92rem;
    text-align: center;
}

.pager__count {
    text-align: center;
}

/* --- iPad y pantallas anchas ------------------------------------------- */

@media (min-width: 768px) {
    :root {
        --gutter: 32px;
    }

    .app {
        max-width: 880px;
    }

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

    .tile {
        min-height: 120px;
    }

    .logo {
        width: 240px;
    }

    .field-row {
        grid-template-columns: 2fr 1fr;
    }

    .line__numbers {
        grid-template-columns: 1fr 1fr 1fr;
    }

    .line__amount {
        grid-column: auto;
        flex-direction: column;
        justify-content: center;
    }
}

@media (prefers-reduced-motion: reduce) {
    * {
        transition: none !important;
        animation: none !important;
    }
}