/* ==========================================================================
   NObra — Sistema de diseño "Industrial construcción"
   Ámbar de obra + pizarra/acero. Claro + oscuro automático.
   Re-skin de Bootstrap 5.1 + shell nativo responsive (teléfono/tablet/PC).
   ========================================================================== */

/* ------------------------------- Tokens ---------------------------------- */
:root {
    /* Marca */
    --amber: #f59e0b;
    --amber-strong: #d97706;
    --amber-soft: #fef3e2;
    --on-amber: #17181c;

    /* Superficies y texto (claro) */
    --bg: #eef0f3;
    --surface: #ffffff;
    --surface-2: #f7f8fa;
    --surface-3: #eceef2;
    --text: #1a1d23;
    --muted: #5c6470;
    --faint: #8b93a1;
    --border: #e0e3e9;
    --border-strong: #cfd4dd;

    /* Semánticos */
    --primary: var(--amber);
    --primary-strong: var(--amber-strong);
    --on-primary: var(--on-amber);
    --danger: #dc2626;
    --danger-soft: #fdecec;
    --success: #16a34a;
    --success-soft: #e8f7ee;
    --info: #0369a1;

    /* Escala / forma */
    --r-sm: 8px;
    --r: 12px;
    --r-lg: 16px;
    --shadow-sm: 0 1px 2px rgba(16, 24, 40, .06), 0 1px 3px rgba(16, 24, 40, .10);
    --shadow: 0 4px 12px rgba(16, 24, 40, .08), 0 2px 4px rgba(16, 24, 40, .05);
    --shadow-lg: 0 12px 28px rgba(16, 24, 40, .14);
    --ring: 0 0 0 3px rgba(245, 158, 11, .30);

    /* Layout */
    --appbar-h: 56px;
    --tabbar-h: 60px;
    --container: 1140px;

    --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;

    color-scheme: light;
}

@media (prefers-color-scheme: dark) {
    :root {
        --bg: #101216;
        --surface: #1b1e24;
        --surface-2: #22262e;
        --surface-3: #2a2f38;
        --text: #e9ebef;
        --muted: #a3abb8;
        --faint: #7f8896;
        --border: #2c313a;
        --border-strong: #3a404b;

        --amber-soft: #3a2a10;
        --danger: #f26d6d;
        --danger-soft: #3a1e1e;
        --success: #4ade80;
        --success-soft: #16311f;
        --info: #6bb7e6;

        --shadow-sm: 0 1px 2px rgba(0, 0, 0, .4);
        --shadow: 0 6px 16px rgba(0, 0, 0, .45);
        --shadow-lg: 0 16px 34px rgba(0, 0, 0, .55);
        --ring: 0 0 0 3px rgba(245, 158, 11, .40);

        color-scheme: dark;
    }
}

/* ------------------------------- Base ------------------------------------ */
* { box-sizing: border-box; }

html, body {
    font-family: var(--font);
    background: var(--bg);
    color: var(--text);
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
    -webkit-tap-highlight-color: transparent;
}

body {
    margin: 0;
    min-height: 100dvh;
    overscroll-behavior-y: none;
}

h1, h2, h3, h4, h5, h6 { color: var(--text); font-weight: 700; letter-spacing: -.01em; }
h1:focus, [tabindex]:focus { outline: none; }

a, .btn-link { color: var(--amber-strong); text-decoration: none; }
a:hover { color: var(--amber); }

.text-muted { color: var(--muted) !important; }

::selection { background: var(--amber); color: var(--on-amber); }

/* Scrollbars discretas */
* { scrollbar-width: thin; scrollbar-color: var(--border-strong) transparent; }
*::-webkit-scrollbar { height: 8px; width: 8px; }
*::-webkit-scrollbar-thumb { background: var(--border-strong); border-radius: 999px; }

/* --------------------------- Shell de la app ----------------------------- */
.app-shell { min-height: 100dvh; display: flex; flex-direction: column; }

.app-bar {
    position: sticky;
    top: 0;
    z-index: 30;
    height: calc(var(--appbar-h) + env(safe-area-inset-top));
    padding-top: env(safe-area-inset-top);
    display: flex;
    align-items: center;
    gap: 1rem;
    padding-left: max(1rem, env(safe-area-inset-left));
    padding-right: max(1rem, env(safe-area-inset-right));
    background: color-mix(in srgb, var(--surface) 88%, transparent);
    backdrop-filter: saturate(180%) blur(12px);
    -webkit-backdrop-filter: saturate(180%) blur(12px);
    border-bottom: 1px solid var(--border);
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: .55rem;
    font-weight: 800;
    font-size: 1.15rem;
    letter-spacing: -.02em;
    color: var(--text);
}
.brand:hover { color: var(--text); }
.brand .brand-mark {
    width: 30px; height: 30px;
    display: grid; place-items: center;
    background: var(--amber);
    color: var(--on-amber);
    border-radius: 9px;
    box-shadow: var(--shadow-sm);
    flex: 0 0 auto;
}
.brand .brand-mark svg { width: 20px; height: 20px; display: block; }
.brand b { color: var(--amber-strong); }

.app-bar-nav { margin-left: auto; display: flex; align-items: center; gap: .35rem; }
.app-bar-nav .nav-pill {
    display: inline-flex; align-items: center; gap: .4rem;
    padding: .45rem .8rem; border-radius: 999px;
    color: var(--muted); font-weight: 600; font-size: .95rem;
}
.app-bar-nav .nav-pill:hover { background: var(--surface-3); color: var(--text); }
.app-bar-nav .nav-pill.active { background: var(--amber-soft); color: var(--amber-strong); }
.app-bar-nav .nav-pill svg { width: 18px; height: 18px; }

.app-user { display: inline-flex; align-items: center; gap: .5rem; margin-left: .25rem; }
.app-user .who { font-size: .9rem; color: var(--muted); max-width: 180px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.app-main { flex: 1; width: 100%; }
.app-container {
    width: 100%;
    max-width: var(--container);
    margin: 0 auto;
    padding: 1.25rem max(1rem, env(safe-area-inset-left)) 2rem max(1rem, env(safe-area-inset-right));
}

/* Barra de pestañas inferior (solo teléfono) */
.tabbar { display: none; }

@media (max-width: 767.98px) {
    .app-bar-nav .nav-pill span, .app-user .who { display: none; }
    .app-user { display: none; }
    .app-bar-nav { gap: .1rem; }

    .tabbar {
        position: fixed;
        left: 0; right: 0; bottom: 0;
        z-index: 40;
        display: flex;
        height: calc(var(--tabbar-h) + env(safe-area-inset-bottom));
        padding-bottom: env(safe-area-inset-bottom);
        background: color-mix(in srgb, var(--surface) 92%, transparent);
        backdrop-filter: saturate(180%) blur(12px);
        -webkit-backdrop-filter: saturate(180%) blur(12px);
        border-top: 1px solid var(--border);
    }
    .tabbar a {
        flex: 1;
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        gap: 3px;
        color: var(--faint);
        font-size: .7rem;
        font-weight: 600;
        letter-spacing: .01em;
    }
    .tabbar a svg { width: 24px; height: 24px; }
    .tabbar a.active { color: var(--amber-strong); }
    .tabbar a:active { background: var(--surface-3); }

    .app-container { padding-bottom: calc(var(--tabbar-h) + env(safe-area-inset-bottom) + 1rem); }
}

/* En teléfono ocultamos los pills de navegación del app-bar (los cubre el tabbar) */
@media (max-width: 767.98px) {
    .app-bar-nav { display: none; }
}

/* --------------------------- Botones ------------------------------------- */
.btn {
    border-radius: var(--r-sm);
    font-weight: 600;
    padding: .5rem .95rem;
    transition: background-color .15s, border-color .15s, transform .05s, box-shadow .15s;
    border: 1px solid transparent;
}
.btn:active { transform: translateY(1px); }
.btn:focus, .btn:focus-visible { outline: none; box-shadow: var(--ring); }
.btn-sm { padding: .35rem .7rem; font-size: .85rem; border-radius: 7px; }

.btn-primary { background: var(--amber); border-color: var(--amber); color: var(--on-amber); }
.btn-primary:hover, .btn-primary:focus { background: var(--amber-strong); border-color: var(--amber-strong); color: var(--on-amber); }
.btn-primary:disabled { background: var(--amber); border-color: var(--amber); color: var(--on-amber); opacity: .55; }

.btn-secondary { background: var(--surface-3); border-color: var(--border-strong); color: var(--text); }
.btn-secondary:hover { background: var(--border); border-color: var(--border-strong); color: var(--text); }

.btn-outline-primary { color: var(--amber-strong); border-color: var(--amber); background: transparent; }
.btn-outline-primary:hover { background: var(--amber); border-color: var(--amber); color: var(--on-amber); }

.btn-outline-secondary { color: var(--muted); border-color: var(--border-strong); background: transparent; }
.btn-outline-secondary:hover { background: var(--surface-3); color: var(--text); border-color: var(--border-strong); }

.btn-outline-danger { color: var(--danger); border-color: color-mix(in srgb, var(--danger) 55%, transparent); background: transparent; }
.btn-outline-danger:hover { background: var(--danger); border-color: var(--danger); color: #fff; }

.btn-link { color: var(--amber-strong); font-weight: 600; padding: .25rem .4rem; }

/* --------------------------- Tarjetas ------------------------------------ */
.card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--r);
    box-shadow: var(--shadow-sm);
}
.card-body { padding: 1.15rem 1.25rem; }
a.card, .card.is-link { transition: box-shadow .15s, border-color .15s, transform .1s; }
a.card:hover, .card.is-link:hover { box-shadow: var(--shadow); border-color: var(--border-strong); }

/* --------------------------- Formularios --------------------------------- */
.form-label { font-weight: 600; font-size: .85rem; color: var(--muted); margin-bottom: .35rem; }

.form-control, .form-select {
    background: var(--surface);
    border: 1px solid var(--border-strong);
    color: var(--text);
    border-radius: var(--r-sm);
    padding: .6rem .8rem;
    font-size: 1rem;
    min-height: 44px;
    transition: border-color .15s, box-shadow .15s;
}
.form-control::placeholder { color: var(--faint); }
.form-control:focus, .form-select:focus {
    background: var(--surface);
    color: var(--text);
    border-color: var(--amber);
    box-shadow: var(--ring);
    outline: none;
}
.form-select {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='none' stroke='%235c6470' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'%3e%3cpath d='M4 6l4 4 4-4'/%3e%3c/svg%3e");
    background-repeat: no-repeat;
    background-position: right .7rem center;
    background-size: 16px;
    padding-right: 2.2rem;
}
.valid.modified:not([type=checkbox]) { outline: none; border-color: var(--success); }
.invalid { outline: none; border-color: var(--danger) !important; }
.validation-message { color: var(--danger); font-size: .85rem; margin-top: .25rem; }

/* --------------------------- Tablas -------------------------------------- */
.table { color: var(--text); border-color: var(--border); margin-bottom: 0; --bs-table-bg: transparent; }
.table > :not(caption) > * > * { background: transparent; box-shadow: none; padding: .7rem .75rem; border-bottom-color: var(--border); }
.table thead th {
    color: var(--muted);
    font-size: .72rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .04em;
    border-bottom: 1px solid var(--border-strong);
    white-space: nowrap;
}
.table.table-striped > tbody > tr:nth-of-type(odd) > * { background: var(--surface-2); }
.table tfoot th { border-top: 2px solid var(--border-strong); color: var(--text); font-weight: 700; }
.table-responsive { border-radius: var(--r); }

/* --------------------------- Badges -------------------------------------- */
.badge { font-weight: 600; padding: .35em .6em; border-radius: 999px; font-size: .72rem; letter-spacing: .01em; }
.badge.bg-primary { background: var(--amber) !important; color: var(--on-amber) !important; }
.badge.bg-success { background: var(--success-soft) !important; color: var(--success) !important; }
.badge.bg-secondary { background: var(--surface-3) !important; color: var(--muted) !important; }
.badge.bg-light { background: var(--surface-3) !important; color: var(--text) !important; border: 1px solid var(--border) !important; }

.text-danger { color: var(--danger) !important; }
.text-success { color: var(--success) !important; }

/* --------------------------- Alertas ------------------------------------- */
.alert { border-radius: var(--r); border: 1px solid transparent; padding: .85rem 1rem; font-size: .95rem; }
.alert-danger { background: var(--danger-soft); border-color: color-mix(in srgb, var(--danger) 30%, transparent); color: var(--danger); }

/* --------------------------- Pestañas segmentadas ------------------------ */
/* Reemplaza .nav-tabs por una tira segmentada estilo iOS/Android */
.seg {
    display: flex;
    gap: .3rem;
    overflow-x: auto;
    scrollbar-width: none;
    -webkit-overflow-scrolling: touch;
    padding: .3rem;
    background: var(--surface-2);
    border: 1px solid var(--border);
    border-radius: 999px;
    position: sticky;
    top: calc(var(--appbar-h) + env(safe-area-inset-top));
    z-index: 20;
}
.seg::-webkit-scrollbar { display: none; }
.seg button {
    flex: 0 0 auto;
    border: 0;
    background: transparent;
    color: var(--muted);
    font-weight: 600;
    font-size: .9rem;
    padding: .5rem .95rem;
    border-radius: 999px;
    white-space: nowrap;
    transition: background-color .15s, color .15s;
    cursor: pointer;
}
.seg button:hover { color: var(--text); }
.seg button.active { background: var(--amber); color: var(--on-amber); box-shadow: var(--shadow-sm); }

/* --------------------- Tabla → tarjetas en teléfono ---------------------- */
/* Las tablas con clase .table-cards se convierten en tarjetas apiladas.
   Cada <td> debe llevar data-label="Encabezado". */
@media (max-width: 639.98px) {
    .table-cards { display: block; }
    .table-cards thead { display: none; }
    .table-cards tbody, .table-cards tfoot { display: block; }
    .table-cards tr {
        display: block;
        background: var(--surface);
        border: 1px solid var(--border);
        border-radius: var(--r);
        box-shadow: var(--shadow-sm);
        padding: .35rem .9rem;
        margin-bottom: .7rem;
    }
    .table-cards.table-striped > tbody > tr:nth-of-type(odd) > * { background: transparent; }
    .table-cards td {
        display: flex;
        justify-content: space-between;
        align-items: center;
        gap: 1rem;
        text-align: right !important;
        padding: .5rem 0 !important;
        border: 0 !important;
        border-bottom: 1px solid var(--border) !important;
    }
    .table-cards tr td:last-child { border-bottom: 0 !important; }
    .table-cards td::before {
        content: attr(data-label);
        text-align: left;
        font-size: .72rem;
        font-weight: 700;
        text-transform: uppercase;
        letter-spacing: .03em;
        color: var(--muted);
        flex: 0 0 auto;
    }
    .table-cards td:empty { display: none; }
    .table-cards td.cell-actions { justify-content: flex-end; }
    .table-cards td.cell-actions::before { display: none; }
    .table-cards tfoot tr { background: var(--surface-2); border-color: var(--border-strong); }
    .table-cards tfoot th {
        display: flex; justify-content: space-between;
        border: 0; padding: .5rem 0; font-size: .95rem;
    }
    .table-cards tfoot th:first-child { color: var(--muted); text-transform: uppercase; font-size: .75rem; letter-spacing: .03em; }
}

/* --------------------------- Utilidades ---------------------------------- */
.page-head { display: flex; justify-content: space-between; align-items: center; gap: 1rem; margin-bottom: 1.1rem; flex-wrap: wrap; }
.page-head h1 { font-size: 1.6rem; margin: 0; }

.stat-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: .8rem; margin-bottom: 1.1rem; }
.stat {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--r);
    padding: .9rem 1rem;
    box-shadow: var(--shadow-sm);
}
.stat .label { font-size: .72rem; text-transform: uppercase; letter-spacing: .04em; color: var(--muted); font-weight: 700; }
.stat .value { font-size: 1.5rem; font-weight: 800; letter-spacing: -.02em; margin-top: .2rem; }
.stat .value.mono { font-variant-numeric: tabular-nums; }

.money { font-variant-numeric: tabular-nums; }
.empty {
    text-align: center;
    color: var(--muted);
    padding: 2.5rem 1rem;
    border: 1px dashed var(--border-strong);
    border-radius: var(--r);
    background: var(--surface-2);
}

/* Skeleton / carga */
.skeleton {
    position: relative; overflow: hidden;
    background: var(--surface-3); border-radius: var(--r-sm);
}
.skeleton::after {
    content: ""; position: absolute; inset: 0;
    background: linear-gradient(90deg, transparent, color-mix(in srgb, var(--surface) 60%, transparent), transparent);
    transform: translateX(-100%);
    animation: shimmer 1.3s infinite;
}
@keyframes shimmer { to { transform: translateX(100%); } }

/* --------------------------- Pantalla de auth ---------------------------- */
.auth-wrap {
    min-height: calc(100dvh - var(--appbar-h) - 3rem);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
}
.auth-card {
    width: 100%;
    max-width: 400px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--r-lg);
    box-shadow: var(--shadow-lg);
    padding: 1.75rem 1.5rem;
}
.auth-logo {
    width: 52px; height: 52px; margin: 0 auto .9rem;
    display: grid; place-items: center;
    background: var(--amber); color: var(--on-amber);
    border-radius: 14px; box-shadow: var(--shadow);
}
.auth-logo svg { width: 30px; height: 30px; }

/* --------------------------- Error UI de Blazor -------------------------- */
#blazor-error-ui {
    background: var(--surface);
    color: var(--text);
    border-top: 3px solid var(--amber);
    bottom: 0; left: 0; width: 100%;
    box-shadow: 0 -4px 16px rgba(0, 0, 0, .18);
    display: none;
    padding: .9rem 1.25rem;
    position: fixed;
    z-index: 1000;
}
#blazor-error-ui .reload { color: var(--amber-strong); font-weight: 600; }
#blazor-error-ui .dismiss { cursor: pointer; position: absolute; right: .9rem; top: .7rem; }

.blazor-error-boundary {
    background: var(--danger);
    padding: 1rem 1rem 1rem 1rem;
    color: #fff;
    border-radius: var(--r);
}
.blazor-error-boundary::after { content: "Ha ocurrido un error."; }

/* --------------------------- Responsive fino ----------------------------- */
@media (max-width: 575.98px) {
    .page-head h1 { font-size: 1.35rem; }
    .card-body { padding: 1rem; }
    .btn { padding: .55rem 1rem; }
}