/* =========================================================
   LicenTrack — identidad visual
   Paleta: tinta marina + acento teal + semáforo de vencimientos
   ========================================================= */
:root {
    --tinta:        #0F1B2D;
    --tinta-2:      #16263D;
    --papel:        #F6F7F9;
    --papel-card:   #FFFFFF;
    --linea:        #E4E7EC;
    --texto:        #1B2430;
    --texto-suave:  #5B6472;
    --acento:       #0E7C86;
    --acento-dark:  #0A5C64;

    --ok:       #2F8F5B;
    --ok-bg:    #E7F5EC;
    --alerta:   #C08A1E;
    --alerta-bg:#FBF1DA;
    --urgente:  #D06B2C;
    --urgente-bg:#FCE9DC;
    --critico:  #C4372B;
    --critico-bg:#FBE2DF;
    --vencida:  #7A1F1F;
    --vencida-bg:#F2DCDC;
    --perpetua: #40506B;
    --perpetua-bg:#E7EAF0;

    --radio: 10px;
    --sombra: 0 1px 2px rgba(15,27,45,0.06), 0 4px 12px rgba(15,27,45,0.05);
}

* { box-sizing: border-box; }

body {
    background: var(--papel);
    color: var(--texto);
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    font-size: 15px;
}

h1, h2, h3, h4, .brand, .stat-num {
    font-family: 'Sora', 'Inter', sans-serif;
    letter-spacing: -0.01em;
}

a { text-decoration: none; }

/* --------------- Layout general --------------- */
.app-shell { display: flex; min-height: 100vh; }

.sidebar {
    width: 240px;
    flex-shrink: 0;
    background: linear-gradient(180deg, var(--tinta) 0%, var(--tinta-2) 100%);
    color: #C9D2DE;
    padding: 22px 16px;
    position: sticky;
    top: 0;
    height: 100vh;
    overflow-y: auto;
}

.sidebar .brand {
    color: #fff;
    font-size: 20px;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 6px;
}
.sidebar .brand .dot {
    width: 10px; height: 10px; border-radius: 50%;
    background: var(--acento);
    box-shadow: 0 0 0 4px rgba(14,124,134,0.25);
}
.sidebar .empresa-tag {
    font-size: 12px;
    color: #8A96A8;
    margin-bottom: 24px;
    padding-bottom: 18px;
    border-bottom: 1px solid rgba(255,255,255,0.08);
}

.sidebar nav a {
    display: flex;
    align-items: center;
    gap: 10px;
    color: #B7C1D1;
    padding: 10px 12px;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 2px;
    transition: background .15s ease, color .15s ease;
}
.sidebar nav a:hover { background: rgba(255,255,255,0.06); color: #fff; }
.sidebar nav a.active { background: var(--acento); color: #fff; }
.sidebar nav .seccion-titulo {
    text-transform: uppercase;
    font-size: 11px;
    letter-spacing: .08em;
    color: #6C7A8F;
    margin: 18px 12px 6px;
}

.sidebar .logout-link {
    color: #E7AFA9;
    margin-top: 18px;
}

.main {
    flex: 1;
    min-width: 0;
}

.topbar {
    background: var(--papel-card);
    border-bottom: 1px solid var(--linea);
    padding: 16px 28px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.topbar h1 { font-size: 20px; margin: 0; font-weight: 700; }
.topbar .usuario { font-size: 13px; color: var(--texto-suave); }

.contenido { padding: 26px 28px 60px; }

/* --------------- Tarjetas y stats --------------- */
.card-suave {
    background: var(--papel-card);
    border: 1px solid var(--linea);
    border-radius: var(--radio);
    box-shadow: var(--sombra);
}

.stat-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
    gap: 14px;
    margin-bottom: 22px;
}
.stat-card {
    padding: 18px 20px;
    border-radius: var(--radio);
    border: 1px solid var(--linea);
    background: var(--papel-card);
    box-shadow: var(--sombra);
    border-left: 4px solid var(--acento);
}
.stat-card .stat-label {
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: .06em;
    color: var(--texto-suave);
    margin-bottom: 6px;
}
.stat-card .stat-num { font-size: 30px; font-weight: 700; color: var(--tinta); }
.stat-card.acento-critico { border-left-color: var(--critico); }
.stat-card.acento-urgente { border-left-color: var(--urgente); }
.stat-card.acento-alerta  { border-left-color: var(--alerta); }
.stat-card.acento-ok      { border-left-color: var(--ok); }

/* --------------- Tablas --------------- */
.tabla-datos {
    width: 100%;
    border-collapse: collapse;
    background: var(--papel-card);
}
.tabla-datos th {
    text-align: left;
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: .04em;
    color: var(--texto-suave);
    padding: 12px 14px;
    border-bottom: 2px solid var(--linea);
    white-space: nowrap;
}
.tabla-datos td {
    padding: 12px 14px;
    border-bottom: 1px solid var(--linea);
    font-size: 14px;
    vertical-align: middle;
}
.tabla-datos tbody tr:hover { background: #FAFBFC; }

/* --------------- Badges de semáforo --------------- */
.badge-semaforo {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 12px;
    font-weight: 600;
    padding: 4px 10px;
    border-radius: 999px;
    white-space: nowrap;
}
.badge-semaforo::before {
    content: '';
    width: 7px; height: 7px; border-radius: 50%;
    background: currentColor;
}
.badge-ok       { background: var(--ok-bg);       color: var(--ok); }
.badge-alerta   { background: var(--alerta-bg);   color: var(--alerta); }
.badge-urgente  { background: var(--urgente-bg);  color: var(--urgente); }
.badge-critico  { background: var(--critico-bg);  color: var(--critico); }
.badge-vencida  { background: var(--vencida-bg);  color: var(--vencida); }
.badge-perpetua { background: var(--perpetua-bg); color: var(--perpetua); }

/* --------------- Formularios --------------- */
.form-label { font-size: 13px; font-weight: 600; color: var(--tinta); }
.form-control, .form-select {
    border-radius: 8px;
    border: 1px solid var(--linea);
    font-size: 14px;
}
.form-control:focus, .form-select:focus {
    border-color: var(--acento);
    box-shadow: 0 0 0 3px rgba(14,124,134,0.15);
}

.btn-acento {
    background: var(--acento);
    border-color: var(--acento);
    color: #fff;
    font-weight: 600;
}
.btn-acento:hover { background: var(--acento-dark); border-color: var(--acento-dark); color: #fff; }

/* --------------- Login --------------- */
.login-shell {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background:
        radial-gradient(circle at 15% 20%, rgba(14,124,134,0.25), transparent 40%),
        linear-gradient(160deg, var(--tinta) 0%, var(--tinta-2) 60%);
    padding: 20px;
}
.login-card {
    width: 100%;
    max-width: 380px;
    background: var(--papel-card);
    border-radius: 14px;
    padding: 34px 32px;
    box-shadow: 0 20px 50px rgba(0,0,0,0.35);
}
.login-card .brand {
    color: var(--tinta);
    font-size: 22px;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 4px;
}
.login-card .tagline {
    color: var(--texto-suave);
    font-size: 13px;
    margin-bottom: 24px;
}

/* Utilidades */
.text-suave { color: var(--texto-suave); }
.mb-6 { margin-bottom: 3rem; }
@media (max-width: 860px) {
    .sidebar { display: none; }
}