:root {
    --bg: #0a0e16;
    --bg-elevated: #10182a;
    --bg-card: #131c30;
    --line: rgba(148, 163, 184, 0.14);
    --line-strong: rgba(148, 163, 184, 0.28);
    --text-1: #eef2f7;
    --text-2: #a7b3c4;
    --text-3: #64748b;
    --blue: #00e5ff;
    --gold: #d4af37;
    --danger: #ef5b5b;

    --font-display: 'Space Grotesk', sans-serif;
    --font-body: 'Inter', sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
    font-family: var(--font-body);
    background-color: var(--bg);
    color: var(--text-2);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    min-height: 100vh;
}

a { color: inherit; text-decoration: none; }

h1, h2, h3 {
    font-family: var(--font-display);
    color: var(--text-1);
    font-weight: 600;
}

/* ---------- Login ---------- */
.auth-shell {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
    background:
        radial-gradient(ellipse 900px 500px at 15% -10%, rgba(0, 229, 255, 0.08), transparent 60%),
        radial-gradient(ellipse 700px 500px at 100% 20%, rgba(212, 175, 55, 0.06), transparent 60%);
}

.auth-box {
    width: 100%;
    max-width: 380px;
    background: var(--bg-card);
    border: 1px solid var(--line-strong);
    padding: 36px 30px;
}

.auth-brand {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 1.15rem;
    color: var(--text-1);
    margin-bottom: 6px;
    letter-spacing: 0.02em;
}

.auth-brand span {
    background: linear-gradient(90deg, var(--blue), var(--gold));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.auth-eyebrow {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--gold);
    display: block;
    margin-bottom: 28px;
}

.form-field { margin-bottom: 16px; }

.form-field label {
    display: block;
    font-family: var(--font-mono);
    font-size: 0.68rem;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--blue);
    margin-bottom: 7px;
}

.form-field input {
    width: 100%;
    padding: 12px 14px;
    background: var(--bg);
    border: 1px solid var(--line-strong);
    color: var(--text-1);
    font-family: var(--font-body);
    font-size: 0.95rem;
}

.form-field input:focus {
    outline: none;
    border-color: var(--blue);
}

.btn-primary {
    width: 100%;
    margin-top: 8px;
    font-family: var(--font-mono);
    font-size: 0.82rem;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    padding: 13px;
    background: var(--blue);
    color: var(--bg);
    border: 1px solid var(--blue);
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
}

.btn-primary:hover { background: transparent; color: var(--blue); }
.btn-primary:disabled { opacity: 0.6; cursor: default; }

.auth-error {
    display: none;
    color: var(--danger);
    font-size: 0.83rem;
    margin-top: 14px;
    text-align: center;
    font-family: var(--font-mono);
}
.auth-error.active { display: block; }

/* ---------- Panel ---------- */
.app-nav {
    border-bottom: 1px solid var(--line);
    padding: 16px 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.app-nav .brand {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 1rem;
    color: var(--text-1);
}

.app-nav .brand span {
    background: linear-gradient(90deg, var(--blue), var(--gold));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.btn-logout {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    background: none;
    border: 1px solid var(--line-strong);
    color: var(--text-2);
    padding: 9px 16px;
    cursor: pointer;
    transition: all 0.2s;
}
.btn-logout:hover { color: var(--blue); border-color: var(--blue); }

.panel-wrap {
    max-width: 720px;
    margin: 0 auto;
    padding: 48px 24px;
}

.panel-wrap h1 {
    font-size: 1.5rem;
    margin-bottom: 30px;
}

.lista-informes {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.informe-item {
    display: block;
    background: var(--bg-card);
    border: 1px solid var(--line);
    padding: 18px 20px;
    transition: border-color 0.2s;
}

.informe-item:hover { border-color: var(--blue); }

.informe-item .titulo {
    color: var(--text-1);
    font-weight: 500;
    font-size: 0.95rem;
    margin-bottom: 4px;
}

.informe-item .fecha {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    color: var(--text-3);
}

.estado-vacio {
    color: var(--text-3);
    font-size: 0.9rem;
    padding: 20px 0;
}

/* ---------- Informe (visor) ---------- */
.informe-wrap {
    padding: 20px 24px 40px;
}

.informe-wrap .volver {
    display: inline-block;
    font-family: var(--font-mono);
    font-size: 0.78rem;
    color: var(--text-2);
    margin-bottom: 18px;
}
.informe-wrap .volver:hover { color: var(--blue); }

iframe#frameInforme {
    width: 100%;
    height: calc(100vh - 140px);
    border: 1px solid var(--line);
    background: var(--bg-elevated);
}

.mensaje-estado {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-3);
    font-size: 0.9rem;
}