/* Eventfy: estilos sin compilación. Claro y oscuro según el sistema. */
:root {
    --bg: #f6f5f2;
    --surface: #ffffff;
    --fg: #1d1d1b;
    --muted: #6b6a66;
    --line: #e4e2dc;
    --accent: #2f6f5e;
    --accent-fg: #ffffff;
    --pos: #2f7d4f;
    --neg: #b3402f;
    --next: #9a6a12;
    --chart-exp: #2f6f5e;
    --chart-now: #8a56c2;
    --chart-spot: #b0aea6;
    --radius: 10px;
}
@media (prefers-color-scheme: dark) {
    :root {
        --bg: #151614;
        --surface: #1e201d;
        --fg: #ecebe6;
        --muted: #9a9890;
        --line: #2f322d;
        --accent: #6fc2a8;
        --accent-fg: #0f1a16;
        --pos: #6cc48f;
        --neg: #e38372;
        --next: #e0b45c;
        --chart-exp: #6fc2a8;
        --chart-now: #b98ce8;
        --chart-spot: #5c5f58;
    }
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
    margin: 0;
    background: var(--bg);
    color: var(--fg);
    font: 16px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}
a { color: var(--accent); }
h1 { font-size: 1.6rem; letter-spacing: -.01em; margin: 0 0 .5rem; }
h2 { font-size: 1.05rem; margin: 0 0 .75rem; }
p { margin: 0 0 .75rem; }
.muted { color: var(--muted); }
.small { font-size: .875rem; }
.pos { color: var(--pos); }
.neg { color: var(--neg); }

/* Barra superior */
.topbar {
    display: flex; align-items: center; gap: 1.25rem; flex-wrap: wrap;
    padding: .75rem 16px; background: var(--surface); border-bottom: 1px solid var(--line);
}
.brand { font-weight: 700; font-size: 1.2rem; color: var(--fg); text-decoration: none; letter-spacing: -.02em; }
.brand span { color: var(--accent); }
.nav { display: flex; gap: 1rem; flex: 1; }
.nav a { color: var(--muted); text-decoration: none; padding: .25rem 0; border-bottom: 2px solid transparent; }
.nav a.active, .nav a:hover { color: var(--fg); border-color: var(--accent); }
.user { display: flex; align-items: center; gap: .75rem; margin: 0; color: var(--muted); font-size: .9rem; }
button.link { background: none; border: 0; color: var(--accent); cursor: pointer; font: inherit; padding: 0; }

/* Página */
.page { max-width: 1040px; margin: 0 auto; padding: 24px 16px 48px; }
.card {
    background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
    padding: 1.25rem; margin-bottom: 1rem;
}
.grid-2 { display: grid; gap: 1rem; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); margin-bottom: 1rem; }
.grid-2 .card { margin: 0; }
.btn {
    display: inline-block; background: var(--accent); color: var(--accent-fg); border: 0;
    border-radius: 8px; padding: .6rem 1rem; font: inherit; font-weight: 600; cursor: pointer; text-decoration: none;
}
.btn:hover { filter: brightness(1.05); }
.pill {
    display: inline-block; font-size: .78rem; font-weight: 600; padding: .1rem .55rem; border-radius: 999px;
    background: var(--line); color: var(--muted);
}
.pill.ok { background: color-mix(in srgb, var(--pos) 18%, transparent); color: var(--pos); }
.pill.next { background: color-mix(in srgb, var(--next) 18%, transparent); color: var(--next); }
.big { font-size: 1.2rem; }
.section-title { margin: 1.5rem 0 .75rem; color: var(--muted); font-size: .9rem; text-transform: uppercase; letter-spacing: .06em; }
.eyebrow { color: var(--muted); font-size: .8rem; margin: 0 0 .25rem; }
.card-link { display: block; color: inherit; text-decoration: none; transition: border-color .15s; }
.card-link:hover { border-color: var(--accent); }
.card-empty { border-style: dashed; background: transparent; }

/* Formulario de configuración */
.form-grid { display: grid; gap: 1rem; grid-template-columns: repeat(auto-fit, minmax(170px, 1fr)); align-items: end; }
.form-grid label { display: flex; flex-direction: column; gap: .3rem; font-size: .9rem; }
.form-grid input, .form-grid select {
    padding: .5rem .6rem; font: inherit; color: var(--fg); background: var(--bg);
    border: 1px solid var(--line); border-radius: 8px;
}
.form-grid small { color: var(--muted); font-size: .78rem; }
.form-actions { display: flex; align-items: center; gap: 1rem; flex-wrap: wrap; }

/* Pestañas de una estrategia */
.strategy-head { margin-bottom: 1.25rem; }
.tabs { display: flex; gap: .25rem; flex-wrap: wrap; border-bottom: 1px solid var(--line); }
.tabs a { padding: .5rem .85rem; color: var(--muted); text-decoration: none; border-bottom: 2px solid transparent; margin-bottom: -1px; }
.tabs a:hover { color: var(--fg); }
.tabs a.active { color: var(--fg); border-color: var(--accent); font-weight: 600; }
.actions { display: flex; align-items: center; gap: 1rem; flex-wrap: wrap; }
.actions form { margin: 0; }
.kv { display: grid; grid-template-columns: auto 1fr; gap: .25rem 1rem; margin: 0 0 .75rem; }
.kv dt { color: var(--muted); }
.kv dd { margin: 0; font-variant-numeric: tabular-nums; }
.steps { list-style: none; margin: 0; padding: 0; }
.steps li { display: flex; justify-content: space-between; gap: 1rem; padding: .4rem 0; border-bottom: 1px solid var(--line); }
.steps li:last-child { border-bottom: 0; }
.steps .step-pendiente span:first-child { color: var(--muted); }

/* Cifras */
.stats { display: grid; gap: 1rem; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); margin: 1rem 0; }
.stat { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 1rem; }
.stat .label { display: block; color: var(--muted); font-size: .85rem; }
.stat .value { display: block; font-size: 1.4rem; font-weight: 700; font-variant-numeric: tabular-nums; }

/* Tabla */
.table { width: 100%; border-collapse: collapse; font-variant-numeric: tabular-nums; }
.table th, .table td { text-align: left; padding: .45rem .5rem; border-bottom: 1px solid var(--line); }
.table th { color: var(--muted); font-weight: 600; font-size: .85rem; }
.table .num { text-align: right; }
.table td { vertical-align: top; }
.nowrap { white-space: nowrap; }
.card:has(.table) { overflow-x: auto; }

/* Gráfico de perfil de riesgo */
.chart { margin: 0 0 .75rem; }
.chart svg { width: 100%; height: auto; display: block; }
.chart .grid { stroke: var(--line); stroke-width: 1; }
.chart .zero { stroke: var(--muted); stroke-width: 1; }
.chart .spot { stroke: var(--chart-spot); stroke-width: 1; stroke-dasharray: 4 4; }
.chart .tick { fill: var(--muted); font-size: 12px; font-variant-numeric: tabular-nums; }
.chart .curve-exp { fill: none; stroke: var(--chart-exp); stroke-width: 2.25; stroke-linejoin: round; }
.chart .curve-now { fill: none; stroke: var(--chart-now); stroke-width: 2; stroke-linejoin: round; }
.legend { display: flex; gap: 1.25rem; flex-wrap: wrap; font-size: .85rem; color: var(--muted); margin-top: .5rem; }
.legend .sw { display: inline-block; width: 14px; height: 3px; border-radius: 2px; margin-right: .4rem; vertical-align: middle; }
/* Series de "Referencias": el S&P 500 en gris oscuro; las estrategias, cada una su color. */
:root { --s-spx: #3b3a36; --s-put: #2f6f5e; --s-bxm: #2b6cb0; --s-cndr: #b7791f; --s-bfly: #b3402f; --s-cll: #7c4dbd; --s-pput: #8a8a83; }
@media (prefers-color-scheme: dark) {
    :root { --s-spx: #ecebe6; --s-put: #6fc2a8; --s-bxm: #7fb2f0; --s-cndr: #e8b45a; --s-bfly: #e38372; --s-cll: #b98ce8; --s-pput: #9a9890; }
}
.chart .serie { fill: none; stroke-width: 1.8; stroke-linejoin: round; }
.chart .serie-spx { stroke: var(--s-spx); stroke-width: 2.4; }
.chart .serie-put { stroke: var(--s-put); }
.chart .serie-bxm { stroke: var(--s-bxm); }
.chart .serie-cndr { stroke: var(--s-cndr); }
.chart .serie-bfly { stroke: var(--s-bfly); }
.chart .serie-cll { stroke: var(--s-cll); }
.chart .serie-pput { stroke: var(--s-pput); stroke-dasharray: 4 3; }
.sw-spx { background: var(--s-spx); } .sw-put { background: var(--s-put); } .sw-bxm { background: var(--s-bxm); }
.sw-cndr { background: var(--s-cndr); } .sw-bfly { background: var(--s-bfly); } .sw-cll { background: var(--s-cll); } .sw-pput { background: var(--s-pput); }
.sw-exp { background: var(--chart-exp); }
.sw-now { background: var(--chart-now); }
.sw-spot { background: var(--chart-spot); }

/* Login */
.login { min-height: 100vh; display: grid; place-items: center; padding: 16px; }
.login-card { width: 100%; max-width: 380px; margin: 0; }
.login-card .brand { display: block; font-size: 1.8rem; margin-bottom: .25rem; }
.login-card label { display: block; font-size: .9rem; margin: .9rem 0 .3rem; }
.login-card label.check { display: flex; align-items: center; gap: .5rem; color: var(--muted); }
.login-card input[type=email], .login-card input[type=password] {
    width: 100%; padding: .6rem .7rem; font: inherit; color: var(--fg); background: var(--bg);
    border: 1px solid var(--line); border-radius: 8px;
}
.login-card input:focus { outline: 2px solid var(--accent); outline-offset: 1px; }
.login-card .btn { width: 100%; margin-top: 1.1rem; }
.error { color: var(--neg); font-size: .9rem; margin: .9rem 0 0; }