:root {
    --bg: #f4f5f7;
    --card: #ffffff;
    --ink: #1a1a1a;
    --muted: #6b7280;
    --red: #df1e39;
    --red-d: #b3162d;
    --black: #1a1a1a;
    --line: #e3e6ea;
    --ok-bg: #e6f4ea; --ok-ink: #1e6b39;
    --err-bg: #fdecea; --err-ink: #b3162d;
    --info-bg: #eef2f7; --info-ink: #1a1a1a;
}
* { box-sizing: border-box; }
body {
    margin: 0; font-family: -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
    background: var(--bg); color: var(--ink); font-size: 15px;
}
a { color: var(--red); }

.topbar {
    display: flex; align-items: center; gap: 20px;
    background: #fff; padding: 0 22px; height: 64px;
    border-bottom: 3px solid var(--red); box-shadow: 0 1px 4px rgba(0,0,0,.06);
}
.brand { display: flex; align-items: center; }
.brand img { height: 34px; width: auto; display: block; }
.topbar-title { flex: 1; font-weight: 700; color: var(--black); font-size: 16px; }
.logout { display: flex; align-items: center; gap: 10px; }
.user { color: var(--muted); font-size: 13px; }
.container { max-width: 980px; margin: 30px auto; padding: 0 20px; }
.foot { text-align: center; color: var(--muted); font-size: 13px; padding: 24px; }
h1 { font-size: 26px; margin: 0 0 6px; color: var(--black); }
.muted { color: var(--muted); }
.portal-head { margin-bottom: 22px; }

/* Rejilla de pastillas */
.apps-grid {
    display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 20px;
}
.app-card {
    position: relative; display: flex; flex-direction: column; gap: 6px;
    background: var(--card); border: 1px solid var(--line); border-radius: 14px;
    padding: 22px 20px 18px; text-decoration: none; color: var(--ink);
    box-shadow: 0 1px 3px rgba(0,0,0,.05); transition: transform .12s, box-shadow .12s, border-color .12s;
    overflow: hidden;
}
.app-card::before {
    content: ""; position: absolute; top: 0; left: 0; right: 0; height: 5px;
}
.app-card.accent-rojo::before  { background: var(--red); }
.app-card.accent-negro::before { background: var(--black); }
.app-card:hover {
    transform: translateY(-3px); box-shadow: 0 8px 22px rgba(0,0,0,.12); border-color: var(--red);
}
.app-icon {
    display: inline-flex; align-items: center; justify-content: center;
    width: 52px; height: 52px; border-radius: 12px; font-size: 26px; margin-bottom: 6px;
}
.accent-rojo  .app-icon { background: #fde7ea; }
.accent-negro .app-icon { background: #ececec; }
.app-name { font-size: 17px; font-weight: 700; color: var(--black); }
.app-desc { font-size: 13.5px; color: var(--muted); line-height: 1.4; flex: 1; }
.app-go { margin-top: 10px; font-size: 13px; font-weight: 700; color: var(--red); }
.accent-negro .app-go { color: var(--black); }

/* Login */
.login-wrap { max-width: 380px; margin: 7vh auto; }
.login-logo { text-align: center; margin-bottom: 22px; }
.login-logo img { height: 56px; width: auto; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 10px; padding: 20px; margin-bottom: 20px; }
.form label { display: block; margin-bottom: 14px; font-weight: 600; font-size: 14px; }
.form input { display: block; width: 100%; margin-top: 6px; padding: 9px 10px; border: 1px solid #cbd5e1; border-radius: 7px; font-size: 14px; }
.form input:focus { outline: none; border-color: var(--red); box-shadow: 0 0 0 3px rgba(223,30,57,.12); }
.btn { display: inline-block; padding: 9px 16px; border-radius: 7px; border: 1px solid #cbd5e1; background: #fff; color: var(--ink); cursor: pointer; font-size: 14px; font-weight: 600; }
.btn:hover { background: #f1f2f4; }
.btn-primary { background: var(--red); border-color: var(--red); color: #fff; }
.btn-primary:hover { background: var(--red-d); border-color: var(--red-d); }
.btn-ghost { background: transparent; border-color: transparent; color: var(--muted); }
.btn-ghost:hover { background: #f1f2f4; color: var(--black); }
.flash { padding: 11px 14px; border-radius: 8px; margin-bottom: 14px; font-size: 14px; }
.flash-success { background: var(--ok-bg); color: var(--ok-ink); }
.flash-error { background: var(--err-bg); color: var(--err-ink); }
.flash-info { background: var(--info-bg); color: var(--info-ink); }