/* SLM Framework · estilos base (mobile-first, tema claro) */
* { box-sizing: border-box; }
:root {
    --slm-bg:        #f6f7fb;
    --slm-surface:   #ffffff;
    --slm-border:    #e6e8ef;
    --slm-text:      #0f1320;
    --slm-muted:     #5c6275;
    --slm-primary:   #10b981;
    --slm-primary-h: #0ea372;
    --slm-error:     #d63a4a;
    --slm-radius:    12px;
    --slm-shadow:    0 2px 12px rgba(15,19,32,.06);
}

html, body { margin: 0; padding: 0; }
body {
    font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
    background: var(--slm-bg);
    color: var(--slm-text);
    line-height: 1.5;
}

a { color: var(--slm-primary); text-decoration: none; }
a:hover { text-decoration: underline; }
code { background: color-mix(in srgb, var(--slm-primary) 8%, transparent); padding: 2px 6px; border-radius: 6px; font-size: .9em; }

/* ============================================================ LOGIN */
.slm-login { display: grid; place-items: center; min-height: 100vh; padding: 1rem; }
.slm-login-card {
    background: var(--slm-surface);
    border: 1px solid var(--slm-border);
    border-radius: var(--slm-radius);
    box-shadow: var(--slm-shadow);
    padding: 2.2rem 1.6rem;
    width: 100%; max-width: 380px;
}
.slm-login-title { margin: 0 0 .3rem; font-size: 1.6rem; }
.slm-login-sub   { margin: 0 0 1.5rem; color: var(--slm-muted); font-size: .95rem; }

.slm-form { display: grid; gap: 1rem; }
.slm-field { display: grid; gap: .35rem; }
.slm-field span { font-size: .85rem; color: var(--slm-muted); font-weight: 600; }
.slm-field input {
    border: 1px solid var(--slm-border);
    border-radius: 10px;
    padding: .7rem .9rem;
    font-size: 1rem;
    background: var(--slm-surface);
    color: var(--slm-text);
    outline: none;
}
.slm-field input:focus { border-color: var(--slm-primary); box-shadow: 0 0 0 3px color-mix(in srgb, var(--slm-primary) 12%, transparent); }

.slm-btn {
    display: inline-block;
    border: 0;
    border-radius: 10px;
    padding: .8rem 1.2rem;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    text-align: center;
    transition: background .15s;
}
.slm-btn-primary { background: var(--slm-primary); color: #fff; }
.slm-btn-primary:hover { background: var(--slm-primary-h); }

.slm-error { color: var(--slm-error); font-size: .9rem; margin: 0; }

/* ============================================================ APP SHELL */
.slm-app  { background: var(--slm-bg); min-height: 100vh; }
.slm-topbar {
    display: flex; align-items: center; gap: 1rem;
    background: var(--slm-surface);
    border-bottom: 1px solid var(--slm-border);
    padding: .8rem 1.2rem;
}
.slm-brand { font-weight: 700; color: var(--slm-text); font-size: 1.05rem; }
.slm-nav   { display: flex; gap: .8rem; flex: 1; }
.slm-nav a { color: var(--slm-muted); font-weight: 500; padding: .3rem .5rem; border-radius: 6px; }
.slm-nav a.is-active { color: var(--slm-primary); background: color-mix(in srgb, var(--slm-primary) 8%, transparent); }
.slm-user  { display: flex; align-items: center; gap: .8rem; font-size: .9rem; color: var(--slm-muted); }
.slm-logout { color: var(--slm-muted); }

.slm-main  { padding: 1.5rem 1.2rem; max-width: 1100px; margin: 0 auto; }
.slm-page-head h1 { margin: 0 0 .3rem; }
.slm-page-sub     { margin: 0 0 1.5rem; color: var(--slm-muted); }

.slm-grid  { display: grid; gap: 1rem; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }
.slm-card  {
    background: var(--slm-surface);
    border: 1px solid var(--slm-border);
    border-radius: var(--slm-radius);
    padding: 1.2rem;
    box-shadow: var(--slm-shadow);
}
.slm-card h2 { margin: 0 0 .5rem; font-size: 1.1rem; }
.slm-card p, .slm-card ul { margin: 0 0 .5rem; color: var(--slm-muted); font-size: .95rem; }

.slm-footer { text-align: center; color: var(--slm-muted); padding: 1.5rem; font-size: .8rem; }

/* ============================================================ MOBILE */
@media (max-width: 640px) {
    .slm-topbar { flex-wrap: wrap; gap: .6rem; }
    .slm-nav    { order: 3; width: 100%; overflow-x: auto; }
    .slm-user   { font-size: .8rem; }
}

/* ============================================================ APP shell (mobile-first) */
.slm-app-shell { background: var(--slm-bg); min-height: 100vh; padding-bottom: 64px; /* espacio para bottom-nav */ }
.slm-app-bar   {
    display: flex; align-items: center; gap: .8rem;
    background: var(--slm-surface);
    border-bottom: 1px solid var(--slm-border);
    padding: .8rem 1rem;
    position: sticky; top: 0; z-index: 10;
}
.slm-app-bar h1   { margin: 0; font-size: 1.05rem; flex: 1; }
.slm-app-bar .back { background: transparent; border: 0; font-size: 1.4rem; cursor: pointer; color: var(--slm-text); }

.slm-app-main { padding: 1rem; max-width: 600px; margin: 0 auto; }
.slm-app-main .slm-card { margin-bottom: 1rem; }

.slm-bottom-nav {
    position: fixed; left: 0; right: 0; bottom: 0;
    display: flex; justify-content: space-around;
    background: var(--slm-surface);
    border-top: 1px solid var(--slm-border);
    padding: .4rem 0;
    z-index: 20;
}
.slm-bottom-nav a {
    flex: 1;
    display: flex; flex-direction: column; align-items: center; gap: 2px;
    padding: .4rem 0;
    color: var(--slm-muted); font-size: .7rem; font-weight: 600;
    text-decoration: none;
}
.slm-bottom-nav a .ico { font-size: 1.3rem; }
.slm-bottom-nav a.is-active { color: var(--slm-primary); }