:root {
    --accent: #1F4E79;
    --accent-2: #2f6db0;
    --bg: #f4f6f9;
    --card: #ffffff;
    --text: #1c2430;
    --muted: #6b7683;
    --border: #e3e8ee;
    --danger: #c0392b;
    --ok: #1e7e46;
    --radius: 12px;
    --shadow: 0 1px 3px rgba(16,24,40,.08), 0 1px 2px rgba(16,24,40,.04);
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
    font-family: 'Segoe UI', system-ui, -apple-system, Roboto, Arial, sans-serif;
    background: var(--bg);
    color: var(--text);
    font-size: 15px;
}

h1 { font-size: 1.5rem; margin: 0 0 .25rem; }
h1:focus { outline: none; }
h2 { font-size: 1.15rem; margin: 1.2rem 0 .5rem; }
.muted { color: var(--muted); }
code { background: #eef1f5; padding: 1px 5px; border-radius: 5px; font-size: .85em; }

/* ---- Shell ---- */
.app-shell { display: flex; flex-direction: column; min-height: 100vh; }
.topbar {
    display: flex; align-items: center; gap: .75rem;
    background: var(--accent); color: #fff;
    padding: .6rem 1rem; position: sticky; top: 0; z-index: 30;
    padding-top: calc(.6rem + env(safe-area-inset-top));
}
.topbar .brand { font-weight: 700; font-size: 1.15rem; }
.topbar .user { margin-left: auto; opacity: .9; font-size: .85rem; color: #fff; text-decoration: none; }
.topbar a.user:hover { opacity: 1; text-decoration: underline; }
.topbar .logout { background: rgba(255,255,255,.15); color: #fff; border: 0; padding: .35rem .7rem; border-radius: 8px; cursor: pointer; }
.menu-btn { display: none; background: transparent; border: 0; color: #fff; font-size: 1.3rem; cursor: pointer; }

.body { display: flex; flex: 1; }
.sidenav { width: 240px; background: var(--card); border-right: 1px solid var(--border); padding: 1rem .5rem; }
.content { flex: 1; padding: 1.5rem; max-width: 1100px; margin: 0 auto; width: 100%; }

.nav-section { font-size: .72rem; text-transform: uppercase; letter-spacing: .06em; color: var(--muted); margin: 1rem .75rem .35rem; }
.nav-item { display: flex; align-items: center; gap: .6rem; padding: .6rem .75rem; border-radius: 8px; color: var(--text); text-decoration: none; }
.nav-item:hover { background: #eef2f7; }
.nav-item.active { background: var(--accent); color: #fff; }
.nav-item .ico { width: 1.2rem; text-align: center; }

/* ---- Cards (home) ---- */
.cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 1rem; margin-top: 1rem; }
.card { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 1.1rem; text-decoration: none; color: var(--text); box-shadow: var(--shadow); transition: transform .1s; }
.card:hover { transform: translateY(-2px); }
.card-ico { font-size: 1.6rem; }
.card-title { font-weight: 700; margin-top: .4rem; }
.card-sub { color: var(--muted); font-size: .85rem; }

/* ---- Lists ---- */
.page-head { display: flex; align-items: center; justify-content: space-between; gap: 1rem; margin-bottom: .5rem; }
.list { display: flex; flex-direction: column; gap: .5rem; margin-top: 1rem; }
.row-item { display: flex; align-items: center; justify-content: space-between; gap: 1rem; background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: .8rem 1rem; box-shadow: var(--shadow); }
.row-title { font-weight: 600; }
.row-sub { color: var(--muted); font-size: .85rem; }
.row-actions { display: flex; gap: .4rem; flex-wrap: wrap; }
.badge { background: #eef2f7; border-radius: 20px; padding: 1px 8px; font-size: .75rem; }
.badge.recurring { background: #e7f0fb; color: var(--accent); }
.badge.inactive { background: #fdecea; color: var(--danger); }
.hint-box { max-width: 720px; margin-top: 1rem; padding: .9rem 1.1rem; background: #fff8e6; border: 1px solid #f0e2b8; border-radius: var(--radius); font-size: .9rem; }
.hint-box ul { margin: .4rem 0 0; padding-left: 1.1rem; }
.hint-box li { margin: .25rem 0; }

/* ---- Buttons ---- */
.btn-primary { background: var(--accent); color: #fff; border: 0; padding: .55rem 1rem; border-radius: 8px; cursor: pointer; font-weight: 600; }
.btn-primary:hover { background: var(--accent-2); }
.btn-primary:disabled { opacity: .6; cursor: default; }
.btn-ghost { background: #eef2f7; color: var(--text); border: 0; padding: .5rem .8rem; border-radius: 8px; cursor: pointer; }
.btn-danger { background: #fdecea; color: var(--danger); border: 0; padding: .5rem .8rem; border-radius: 8px; cursor: pointer; }

/* ---- Forms ---- */
label { display: block; font-size: .82rem; color: var(--muted); margin: .6rem 0 .2rem; }
.fld { width: 100%; padding: .55rem .7rem; border: 1px solid var(--border); border-radius: 8px; font-size: .95rem; background: #fff; }
.fld:focus { outline: none; border-color: var(--accent-2); box-shadow: 0 0 0 3px rgba(47,109,176,.15); }
.grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: .75rem; }
.check { display: flex; align-items: center; gap: .5rem; margin-top: .7rem; color: var(--text); }
.check input { width: auto; }
.form-narrow { max-width: 720px; background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 1.25rem; box-shadow: var(--shadow); }

.err { background: #fdecea; color: var(--danger); padding: .6rem .8rem; border-radius: 8px; margin: .6rem 0; }
.ok { background: #e7f6ee; color: var(--ok); padding: .6rem .8rem; border-radius: 8px; margin: .6rem 0; }

/* ---- Modal ---- */
.modal-backdrop { position: fixed; inset: 0; background: rgba(15,23,42,.45); display: flex; align-items: flex-start; justify-content: center; padding: 2rem 1rem; z-index: 50; overflow: auto; }
.modal { background: var(--card); border-radius: var(--radius); padding: 1.5rem; width: 100%; max-width: 620px; box-shadow: 0 12px 40px rgba(0,0,0,.2); }
.modal-actions { display: flex; justify-content: flex-end; gap: .6rem; margin-top: 1rem; }
.modal.preview-modal { max-width: 840px; }
.modal-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: .5rem; }
.modal-head h2 { margin: 0; }

/* ---- CxC items table ---- */
.items { width: 100%; border-collapse: collapse; margin-top: .5rem; }
.items th, .items td { text-align: left; padding: .35rem .4rem; border-bottom: 1px solid var(--border); font-size: .9rem; }
.items th:nth-child(n+2), .items td:nth-child(n+2) { text-align: right; }
.items .num { text-align: right; }
.add-row { display: flex; gap: .5rem; margin-top: .5rem; }
.total-line { text-align: right; font-size: 1.1rem; margin-top: .6rem; }

/* ---- Templates editor ---- */
.tpl-layout { display: grid; grid-template-columns: 220px 1fr 1fr; gap: 1rem; margin-top: 1rem; align-items: start; }
.tpl-list { display: flex; flex-direction: column; gap: .4rem; }
.tpl-item { background: var(--card); border: 1px solid var(--border); border-radius: 10px; padding: .6rem .8rem; cursor: pointer; }
.tpl-item.sel { border-color: var(--accent); box-shadow: 0 0 0 2px rgba(47,109,176,.15); }
.tpl-editor { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 1rem; box-shadow: var(--shadow); }
.tpl-editor .color { height: 40px; padding: 2px; }
.logo-row { display: flex; align-items: center; gap: .6rem; flex-wrap: wrap; }
.logo-thumb { max-height: 48px; max-width: 140px; border: 1px solid var(--border); border-radius: 6px; padding: 2px; background: #fff; }
.toggles { display: grid; grid-template-columns: 1fr 1fr; gap: .2rem .8rem; margin-top: .6rem; }
.tpl-preview { position: sticky; top: 5rem; }
.preview-head { font-size: .8rem; color: var(--muted); margin-bottom: .3rem; text-transform: uppercase; letter-spacing: .05em; }
.preview-frame { width: 100%; height: 640px; border: 1px solid var(--border); border-radius: var(--radius); background: #fff; }
@media (max-width: 1000px) {
    .tpl-layout { grid-template-columns: 1fr; }
    .tpl-preview { position: static; }
    .toggles { grid-template-columns: 1fr; }
}

/* ---- Login ---- */
.login-wrap { min-height: 100vh; display: flex; align-items: center; justify-content: center; background: linear-gradient(135deg, var(--accent), #12324f); padding: 1rem; }
.login-card { background: #fff; border-radius: 16px; padding: 2rem; width: 100%; max-width: 380px; box-shadow: 0 20px 60px rgba(0,0,0,.3); }
.login-card h1 { text-align: center; color: var(--accent); }
.login-card .muted { text-align: center; margin-bottom: 1rem; }
.login-card .btn-primary { width: 100%; margin-top: 1rem; padding: .7rem; }

/* ---- Blazor error UI ---- */
#blazor-error-ui { background: #ffe9e9; color: #7a1f1f; bottom: 0; display: none; left: 0; padding: .8rem 1.2rem; position: fixed; width: 100%; z-index: 100; box-shadow: 0 -1px 2px rgba(0,0,0,.1); }
#blazor-error-ui .dismiss { cursor: pointer; position: absolute; right: 1rem; top: .8rem; }
.loading-progress { position: absolute; display: block; width: 6rem; height: 6rem; top: calc(50% - 3rem); left: calc(50% - 3rem); }
.loading-progress circle { fill: none; stroke: #e0e0e0; stroke-width: .4rem; transform-origin: 50% 50%; transform: rotate(-90deg); }
.loading-progress circle:last-child { stroke: var(--accent); stroke-dasharray: calc(3.141 * var(--blazor-load-percentage, 0%) * .8), 500%; transition: stroke-dasharray .05s ease-in-out; }
.loading-progress-text { position: absolute; text-align: center; font-weight: bold; inset: calc(50% - .8rem) 0 auto; }
.loading-progress-text:after { content: var(--blazor-load-percentage-text, "Cargando"); }

/* ---- Responsive ---- */
@media (max-width: 800px) {
    .menu-btn { display: block; }
    .sidenav { position: fixed; top: 0; left: 0; bottom: 0; z-index: 40; transform: translateX(-100%); transition: transform .2s; padding-top: calc(1rem + env(safe-area-inset-top)); box-shadow: 2px 0 12px rgba(0,0,0,.15); }
    .sidenav.open { transform: translateX(0); }
    .content { padding: 1rem; }
    .grid2 { grid-template-columns: 1fr; }
    .row-item { flex-direction: column; align-items: stretch; }
}